Roller washing machine

Abstract

The embodiment of the utility model belongs to the technical field of household appliances, and provides a drum washing machine which comprises a box body, an outer drum, a drum and a shock absorber. The box body is provided with a containing space, the outer cylinder is arranged in the containing space and provided with an outer cylinder cavity, a first outer cylinder connecting piece and a second outer cylinder connecting piece, the first outer cylinder connecting piece and the second outer cylinder connecting piece are arranged on the left side and the right side, and the roller is arranged in the outer cylinder cavity and rotates relative to the outer cylinder. The bottom ends of the two outer cylinder connecting pieces are rotationally connected with the inner bottom wall of the box body through the first adapter and the second adapter, are respectively close to the left side surface and the right side surface of the box body relative to the top ends of the two outer cylinder connecting pieces, are connected with the corresponding outer cylinder connecting pieces and are close to the front side surface of the box body. By changing the positions and the mounting angles of the first shock absorber and the second shock absorber relative to the outer cylinder, the acting force applied to the outer cylinder by the first shock absorber and the second shock absorber in the vertical direction is stable, so that the outer cylinder is ensured not to incline or move, the central position of the outer cylinder is favorably kept, and unnecessary vibration or displacement during starting or stopping is avoided.

Description

[0001] This application claims priority to Chinese Patent Application No. 202420361896.5, filed on February 27, 2024, entitled "Drum Washing Machine", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of household appliance technology, and in particular to a drum washing machine. Background Technology

[0003] A drum washing machine includes a cabinet, an outer drum, and a drum. The outer drum is located inside the cabinet, and the drum is located inside the outer drum.

[0004] Traditional drum washing machines have smaller drum and outer tub diameters, and larger gaps between the outer tub and the casing, resulting in relatively less overall machine vibration. By using reinforced parts with direct flanges to form the connection, and connecting the shock absorber to the connection formed by the direct flanges, the overall machine vibration control requirements of the small-diameter outer tub can be met.

[0005] However, when the diameter of the outer drum is increased, using the original casing, reinforcing parts and connecting parts limits the stroke of the shock absorber and affects the shock absorption effect due to the installation angle of the shock absorber. This cannot meet the vibration control requirements of the shock absorber for the whole machine. Therefore, this application proposes a drum washing machine. Utility Model Content

[0006] This application aims to at least partially address one of the technical problems in the related art.

[0007] According to an embodiment of this disclosure, a drum washing machine is provided, comprising: a casing having a placement space, the outer surface of the casing having a left side, a right side, a front side, and a rear side; an outer drum disposed in the placement space, the outer drum having an outer drum cavity; the outer drum having a front end near the front side; the outer drum including: a first outer drum connector located on the left side of the outer wall of the outer drum; a second outer drum connector located on the right side of the outer wall of the outer drum; a drum disposed in the outer drum cavity, the drum being rotatably disposed relative to the outer drum; and a shock absorber including: a first shock absorber located on the left side of the casing; the first shock absorber... The bottom end of the first shock absorber is closer to the left side than the top end of the first shock absorber. The top end of the first shock absorber is connected to the first outer cylinder connector, and the bottom end of the first shock absorber is rotatably connected to the inner bottom wall of the housing via a first adapter. The second shock absorber is located on the right side of the housing. The bottom end of the second shock absorber is closer to the right side than the top end of the second shock absorber. The top end of the second shock absorber is connected to the second outer cylinder connector, and the bottom end of the second shock absorber is rotatably connected to the inner bottom wall of the housing via a second adapter. Along the axial direction of the outer cylinder, the top ends of the first and second shock absorbers are connected... The outer drum is positioned closer to the front side than the rear side; the outer diameter of the outer drum is D1, and the width of the outer wall of the drum washing machine is L, where D1 and L satisfy: 0.93 < D1 / L < 0.98; the center point where the top of the first shock absorber connects to the first outer drum connector is defined as the first connection center point; the axis passing through the first connection center point on the radial section of the outer drum is defined as the first outer drum axis; the line segment between the first connection center point and the first outer drum axis is the first connecting line; and the line segment between the first connection center point and the axis of rotation of the first adapter is the second connecting line. The angle between the first and second connecting lines at the first connection center point is α2, where α2 satisfies: 166° < α2 < 170°; the center point where the top of the second shock absorber connects to the second outer cylinder connector is defined as the second connection center point, and the line segment between the second connection center point and the axis of the first outer cylinder is the third connecting line; and the line segment between the second connection center point and the axis of the second adapter's rotation shaft is the fourth connecting line; the angle between the third and fourth connecting lines at the second connection center point is α4, where α4 satisfies: 166° < α4 < 170°.

[0008] The beneficial effects of this application are as follows: In a drum washing machine, the stability of the outer drum is crucial for its normal operation and for reducing noise and vibration. In a drum washing machine, when the outer drum is in a balanced state, i.e., a stable state, it experiences a stable force in the vertical direction to achieve this stability. Therefore, the force applied to the outer drum by the shock absorbers in the vertical direction is constant. This means that, to achieve vertical stability of the outer drum, the forces applied to it by the first and second shock absorbers in the vertical direction are stable, ensuring that the outer drum does not tilt or move. This force balance helps maintain the center position of the outer drum, thereby avoiding unnecessary vibration or displacement during start-up or shutdown.

[0009] When the angle between the first and second lines at the first connection center point is α2, the force Fa1 applied to the outer cylinder by the first shock absorber is decomposed horizontally and vertically. The force Fa1 decomposed horizontally is F1, and the force decomposed vertically is F2. Since the vertical downward weight of the objects supported by the shock absorbers such as the outer cylinder and roller remains constant, F2 remains unchanged regardless of where the first connection center point moves to on the outer wall of the outer cylinder, thus ensuring the force balance of the outer cylinder. When α2 < 166°, the force Fa2 applied to the outer cylinder by the first shock absorber is decomposed horizontally and vertically. The force Fa2 decomposed horizontally is F3, and the force decomposed vertically is F4. Compared to the case where 166° < α2 < 170°, since F2 and F4 are equal, according to the parallelogram rule, F3 must be greater than F1 to ensure the force balance of the outer cylinder. This means that when α2 < 166° compared to 166° < α2 < 170°, the first shock absorber needs to apply a greater horizontal force to the outer drum to provide the same support. Therefore, when the drum rotates relative to the outer drum, the first shock absorber needs to provide a larger horizontal component of force to the outer drum to maintain force balance, which reduces the shock absorber's stability. Based on the current materials and strength of shock absorbers and the weight supported by shock absorbers in large-diameter drum washing machines, in the embodiment of this application where the outer drum diameter is larger, when α2 < 166°, the supporting force of the first shock absorber on the outer drum increases, the horizontal component of force increases, posing a risk of shock absorber breakage and reducing its service life.

[0010] Conversely, when α2 > 170°, the force applied to the outer cylinder by the first shock absorber is Fa3. Fa3 is decomposed into force F5 in the horizontal direction and force F6 in the vertical direction. Compared to the case of 166° < α2 < 170°, since F2 and F6 are equal, according to the parallelogram rule, F5 must be less than F1 to ensure the force balance of the outer cylinder. This means that when α2 > 170°, compared to the case of 166° < α2 < 170°, the first shock absorber only needs to apply a smaller horizontal force to the outer cylinder to provide the same support. However, the larger the angle between the first and second connecting lines, the larger the angle between the bottom to top of the first shock absorber and the horizontal direction, resulting in a smaller effective stroke of the first shock absorber. This causes the first shock absorber to be unable to effectively dampen the front end of the outer cylinder, requiring the replacement with a different model of the first shock absorber, which incurs additional debugging costs.

[0011] The shock absorber stroke refers to the maximum distance the piston rod travels from fully compressed to fully extended. The effective stroke of the shock absorber refers to the distance it can compress and extend when absorbing shocks and vibrations. An excessively large angle results in a smaller stroke, meaning the shock absorber's compression and extension capabilities are limited. The shock absorber angle refers to its installation angle relative to the horizontal line. Based on the current compression and extension capabilities of shock absorbers, in the following embodiment of this application, when the outer cylinder diameter is increased, and α2 > 170°, the effective stroke of the shock absorber is too low, and the buffering capacity is insufficient to support the outer cylinder.

[0012] Therefore, in this embodiment, α2 satisfies: 166° < α2 < 170°. When arranging the first shock absorber, adjusting the angle α2 between the first shock absorber and the outer drum reduces the force required for the first shock absorber to reach equilibrium, thereby improving the stability of the outer drum. By optimizing the angle setting, the drum washing machine can maintain balance and stability even with an increased outer drum diameter in some embodiments of this application, reducing the risk of shock absorber breakage while ensuring its cushioning performance, thus contributing to improved reliability. By reducing the force required for the first shock absorber, its workload can be reduced, thereby extending its service life. This reduces the frequency of replacement and maintenance, lowering long-term maintenance costs.

[0013] It is understandable that, since the first and second shock absorbers are symmetrically distributed on opposite sides of the front end of the outer cylinder, and the function of the second shock absorber is the same as that of the first shock absorber, the setting of the parameter α4 related to the second shock absorber is consistent with the principle of the parameter α2 related to the first shock absorber. α4 satisfies: 166°<α4<170°. Therefore, it will not be elaborated further here.

[0014] In this embodiment, the outer diameter D of the outer drum and the outer wall width L of the drum washing machine satisfy the condition: 0.93 < D1 / L < 0.98. The industry standard for the outer wall width of a large-diameter drum washing machine is 600mm. Given a fixed outer wall width L, when D1 / L < 0.93, D1 is too small, resulting in a small outer drum diameter. This leads to wasted internal space, reduced washing chamber size, and failure to fully utilize the overall size of the washing machine. Conversely, when D1 / L > 0.98, the outer drum diameter is too large, potentially causing insufficient space between the cabinet and the outer drum, hindering the proper arrangement of other necessary components. Furthermore, insufficient space between the cabinet and the outer drum increases the probability of collision between the outer wall of the outer drum and the cabinet. This can cause significant vibration and noise during high-speed rotation of the drum washing machine, negatively impacting the user experience.

[0015] Therefore, in the embodiments of this application, D1 and L satisfy: 0.93 < D1 / L < 0.98; so as to make full use of the space inside the drum washing machine cabinet, while avoiding collision between the outer drum and the cabinet.

[0016] According to an embodiment of the present application: The horizontal distance between the axis points of the first adapter rotating shaft and the second adapter rotating shaft is L1, and the outer diameter of the outer cylinder is D1. L1 and D1 satisfy: 0.95 < L1 / D1 < 0.98.

[0017] Another technical solution in the above technical solution has the following advantages or beneficial effects: By setting the horizontal distance between the axis points of the first adapter rotating shaft and the second adapter rotating shaft to 0.95 < L1 / D1 < 0.98, in this way, the distance between the first shock absorber and the second shock absorber is within the preset distance range, ensuring the effective movement stroke and installation angle of the first shock absorber and the second shock absorber, and improving the shock absorption effect of the shock absorber.

[0018] Relatively, when the ratio of L1 / D1 is less than 0.95, based on the fixed value of the diameter D1 of the outer cylinder, the value range of L1 is too small. Since the bottom ends of the first shock absorber and the second shock absorber are respectively connected to the first adapter and the second adapter, and the top ends of the first shock absorber and the second shock absorber are respectively connected to the first outer cylinder connecting member and the second outer cylinder connecting member, when the value range of L1 is too small based on the fixed positions of the first outer cylinder connecting member and the second outer cylinder connecting member, the distance between the first adapter and the second adapter is too small, and the distance between the bottom ends of the first shock absorber and the second shock absorber is too small. In this way, the included angles between the first shock absorber and the second shock absorber and the horizontal direction become larger, and it is impossible to effectively ensure the effective stroke and the angle of the first shock absorber. And too small effective stroke of the first shock absorber will affect the shock absorption ability of the first shock absorber.

[0019] Relatively, when the ratio of L1 / D1 is greater than 0.98, based on the fixed value of the diameter D1 of the outer cylinder, the value range of L1 is too large. When the value range of L1 is too large based on the fixed positions of the first outer cylinder connecting member and the second outer cylinder connecting member, the distance between the first adapter and the second adapter is too large, and the distance between the bottom ends of the first shock absorber and the second shock absorber is too large. In this way, the included angles between the first shock absorber and the second shock absorber and the horizontal direction decrease. When the value range of L1 is too large based on the fixed positions of the first outer cylinder connecting member and the second outer cylinder connecting member, the distance between the first adapter and the second adapter is too large, and the distance between the bottom ends of the first shock absorber and the second shock absorber is too large. In this way, the included angles between the first shock absorber and the second shock absorber and the horizontal direction decrease, and the effective strokes of the first shock absorber and the second shock absorber are too large, which is not conducive to the first shock absorber and the second shock absorber effectively damping the front end of the outer cylinder.

[0020] Compared to existing technologies, the drum washing machine in some embodiments of this application has a smaller distance between the adapter and the inner wall of the casing compared to traditional washing machines. In existing technologies, the distance between the two adapters near the left and right sides is a common size of 502mm. Furthermore, in traditional drum washing machines, the outer drum diameter is not increased to occupy internal space, and L1 does not need to be close to the outer wall of the casing to ensure the stability of the outer drum and achieve the corresponding shock absorption effect. In some embodiments of this application, the outer drum of the drum washing machine has a larger diameter than that of traditional drum washing machines, and the outer drum is closer to the inner wall of the casing. The axis points of the first and second adapters are also closer to the outer wall of the casing. Therefore, the value of L1 / D1 is closer to 1.

[0021] According to an embodiment of this application, the line connecting the center point of the first adapter rotation shaft and the center point of the second adapter rotation shaft is defined as the first bottom end line; and the perpendicular line passing through the center of the first outer cylinder and perpendicular to the first bottom end line is defined as the first vertical line.

[0022] The first connecting line and the first vertical line have an angle α1, where α1 satisfies: 35°<α1<39°, and the third connecting line and the first vertical line have an angle α3, where α3 satisfies: 35°<α3<39°.

[0023] Another technical solution mentioned above has the following advantages or beneficial effects: In a drum washing machine, the stability of the outer drum is crucial for its normal operation and for reducing noise and vibration. In a drum washing machine, when the outer drum is in a balanced state, i.e., a stable state, it experiences a stable force in the vertical direction to achieve stability. Therefore, the force applied to the outer drum by the shock absorbers in the vertical direction is constant. This means that to achieve vertical stability of the outer drum, the forces applied to it by the first and second shock absorbers in the vertical direction are equal, ensuring that the outer drum does not tilt or move. This force balance helps maintain the center position of the outer drum, thereby avoiding unnecessary vibration or displacement during startup or shutdown.

[0024] When the angle between the first connecting line and the first vertical line is α1, the force Fa1 applied by the first shock absorber to the outer cylinder is decomposed in the horizontal and vertical directions. The force Fa1 is decomposed in the horizontal direction as F1 and in the vertical direction as F2.

[0025] Conversely, when α1 > 39°, the force Fa2 applied to the outer cylinder by the first shock absorber is decomposed in the horizontal and vertical directions. The force Fa2 is decomposed into F3 in the horizontal direction and F4 in the vertical direction.

[0026] Since the force on the outer cylinder in the vertical direction is stable, the force exerted by the first shock absorber on the outer cylinder in the vertical direction remains constant. However, when the included angle α1 increases, the force exerted by the first shock absorber on the outer cylinder in the vertical direction must remain constant. This means that the total force Fa2 exerted by the first shock absorber on the outer cylinder must increase, because at a larger angle between the first connecting line and the first vertical line, the proportion of the vertical component in the total force decreases. Therefore, to maintain the same vertical force component, Fa2 must be greater than Fa1, and F3 must be greater than F1.

[0027] In other words, as the angle α1 between the first connecting line and the first vertical line increases, the outer cylinder 2 requires the first shock absorber to apply a greater force to reach equilibrium. Because a greater force is needed to maintain vertical stability, this means that the outer cylinder is more difficult to reach equilibrium, which places higher demands on the first shock absorber.

[0028] Conversely, when α1 < 35°, the force applied to the outer cylinder by the first shock absorber is Fa3. Fa3 is decomposed into force F5 in the horizontal direction and force F6 in the vertical direction.

[0029] Since the force on the outer cylinder in the vertical direction is stable, the force exerted by the first shock absorber on the outer cylinder in the vertical direction remains constant. However, when the included angle α1 decreases, the force exerted by the first shock absorber on the outer cylinder in the vertical direction must remain constant. This means that the total force Fa3 exerted by the first shock absorber on the outer cylinder must decrease, because at a smaller angle between the first connecting line and the first vertical line, the proportion of the vertical component in the total force increases. Therefore, to maintain the same vertical force component, Fa3 must be less than Fa1, and F5 must be less than F1.

[0030] In other words, when the angle α1 between the first connecting line and the first vertical line decreases, the outer cylinder requires less force from the first shock absorber to reach equilibrium. This means the outer cylinder is easier to balance, and the requirements for the first shock absorber are reduced. However, the smaller the angle between the first connecting line and the first vertical line, the larger the angle between the bottom to top direction of the first shock absorber and the horizontal direction, resulting in a smaller effective stroke of the first shock absorber. This causes the first shock absorber to be unable to effectively dampen the front end of the outer cylinder, necessitating the replacement of a different model of the first shock absorber, which incurs additional debugging costs.

[0031] Therefore, in the embodiments of the present application, α1 satisfies: 35° < α1 < 39°. When arranging the first shock absorber, by adjusting the relevant angle α1 between the first shock absorber and the outer cylinder, the force that the first shock absorber needs to apply when the outer cylinder reaches the equilibrium state is reduced, thereby improving the stability of the outer cylinder; by optimizing the angle setting, the drum washing machine can maintain balance and stability under a wider range of operating conditions, which helps to improve the reliability of the drum washing machine. By reducing the force that the first shock absorber needs to apply, its working load can be reduced, thereby extending the service life of the first shock absorber. This reduces the frequency of replacement and maintenance and lowers the long-term maintenance cost.

[0032] It can be understood that since the first shock absorber and the second shock absorber are symmetrically distributed on the opposite sides of the front end of the outer cylinder, the function of the second shock absorber is the same as that of the first shock absorber. Therefore, the setting principle of the relevant parameter α3 of the second shock absorber is the same as that of the relevant parameter α1 of the first shock absorber, and α3 satisfies: 35° < α3 < 39°. So it will not be elaborated here.

[0033] The distance from the axis of the first outer cylinder to the plane where the line connecting the first bottom end is located is LA, and LA satisfies: 418mm < LA < 422mm.

[0034] Another technical solution in the above technical solutions has the following advantages or beneficial effects: by setting LA to: 418mm < LA < 422mm, in this way, the volume of the outer cylinder can maximize the space utilization, avoid space waste, and at the same time, ensure that the drum has a sufficient washing cavity, so that the clothes can fully tumble, unfold and rub during the washing process, improving the washing effect and efficiency.

[0035] When 418mm > LA, under the condition that the height of the drum washing machine box in the industry is the same, there is not enough space at the bottom of the box to place other key components such as the motor drainage system.

[0036] When 422mm < LA, under the condition that the height of the drum washing machine box in the industry is the same, there is not enough space at the top of the box to place other key components such as the soap box.

[0037] According to an embodiment of this disclosure, the outer cylinder further includes: a third outer cylinder connector located on the left side of the outer cylinder wall; a fourth outer cylinder connector located on the right side of the outer cylinder wall; the shock absorber further includes: a third shock absorber located on the left side of the housing; along the axial direction of the outer cylinder, the top end of the third shock absorber is connected to the position of the third outer cylinder connector, which is closer to the rear side relative to the front side; the bottom end of the third shock absorber is closer to the left side relative to the top end of the third shock absorber; the fourth shock absorber is located on the right side of the housing; along the axial direction of the outer cylinder, the top end of the fourth shock absorber is connected to the position of the fourth outer cylinder connector, which is closer to the rear side relative to the front side; the bottom end of the fourth shock absorber is closer to the right side relative to the top end of the fourth shock absorber; the center point between the top end of the third shock absorber and the third outer cylinder connector is defined as the third connection center point, which passes through the third connection... The center point on the radial cross-section of the outer cylinder is defined as the second outer cylinder axis. The line segment connecting the third center point and the second outer cylinder axis is the fifth connecting line. The line segment connecting the third connecting center point and the axis point of the third transition piece at the bottom of the third shock absorber is the sixth connecting line. The angle between the fifth and sixth connecting lines at the third connecting center point is α6. α6 and α2 satisfy α6 < α2. The center point between the top of the fourth shock absorber and the fourth outer cylinder connector is defined as the fourth connecting center point. The line segment passing through the fourth connecting center point and the second outer cylinder axis is the seventh connecting line. The line segment connecting the fourth connecting center point and the axis point of the rotation shaft of the fourth transition piece at the bottom of the fourth shock absorber is the eighth connecting line. The angle between the seventh and eighth connecting lines at the fourth connecting center point is α8. α8 and α4 satisfy α8 < α4.

[0038] Another technical solution mentioned above has the following advantages or beneficial effects: In a drum washing machine, the stability of the outer drum is crucial for its normal operation and for reducing noise and vibration. In a drum washing machine, when the outer drum is in a balanced state, i.e., a stable state, it bears a stable force in the vertical direction to achieve stability. Therefore, the force applied to the outer drum by the shock absorber in the vertical direction is constant.

[0039] In the embodiments of this application, the shock absorber includes a first shock absorber, a second shock absorber, a third shock absorber, and a fourth shock absorber. This means that in order to achieve vertical stability of the outer cylinder, the first shock absorber, the second shock absorber, the third shock absorber, and the fourth shock absorber exert approximately equal forces on the outer cylinder in the vertical direction.

[0040] When the angle between the first and second lines is α2, the force Fa applied by the first shock absorber to the front end of the outer cylinder is decomposed horizontally and vertically. The force Fa1 is decomposed into F1 horizontally and F2 vertically. When the angle between the fifth and sixth lines is α6, the force Fb1 applied by the third shock absorber to the rear end of the outer cylinder is decomposed horizontally and vertically. The force Fb1 is decomposed into F11 horizontally and F12 vertically.

[0041] Based on the fact that the first and third shock absorbers exert equal vertical forces on the outer drum, the vertical force F2 exerted by the first shock absorber on the front end of the outer drum is equal to the vertical force F12 exerted by the third shock absorber on the rear end of the outer drum, in order to maintain the balance of the drum washing machine.

[0042] In the design of drum washing machines, the front end of the outer drum needs to be more stable. The vibration amplitude at the front end is lower than that at the rear end. This is because the support structure of the outer drum differs between the front and rear ends. The front end houses the door seal and other components, and it also bears the impact of the washing machine door opening and closing, as well as other operations, requiring a more robust design. The rear end, on the other hand, connects to the drive system and is involved in rotation and power transmission; therefore, it has more space to move and a lower probability of collision.

[0043] In this way, during the use of a drum washing machine, the drum rotates and transfers some energy from the front to the back, which relatively reduces the vibration energy and amplitude of the front end of the outer drum, thereby reducing the noise generated at the front end of the outer drum and avoiding noise affecting the user.

[0044] Considering the influence of vibration amplitudes at the front and rear ends of the outer cylinder, the front end needs to be more stable. That is, the force applied to the front end by the first damper is less than the force applied to the rear end by the third damper, i.e., Fa1 < Fb1. Thus, the force required for the front end to reach equilibrium is less than the force required for the rear end. The front end is more stable than the rear end. Therefore, the force Fb1 applied to the rear end by the third damper is greater than the force Fa1 applied to the front end by the first damper.

[0045] Correspondingly, when Fa1 < Fb1, based on F2 = F12, F1 < F11. Force analysis shows that α2 and α6 must satisfy: α6 < α2. Thus, the rear end of the outer drum requires a larger force from the third shock absorber to reach equilibrium, while the front end requires a smaller force from the first shock absorber. This means the front end of the outer drum is more likely to reach equilibrium and is more stable. Compared to the front end, the rear end of the outer drum is less likely to reach equilibrium and has poorer stability. Therefore, during the operation of the drum washing machine, the vibration energy generated at the front end of the outer drum is transferred from the front to the rear end to reduce the noise generated by the vibration at the front end.

[0046] Conversely, when α6 and α2 satisfy the condition that α6 > α2, the force Fb3 applied by the third shock absorber to the rear end of the outer cylinder is decomposed into horizontal and vertical forces. The force Fb3 decomposed into F15 in the horizontal direction and F16 in the vertical direction.

[0047] Since the force on the outer cylinder in the vertical direction is stable, the force exerted on the outer cylinder by the first shock absorber in the vertical direction is equal to the external force exerted on the outer cylinder by the third shock absorber in the vertical direction. That is to say, F2 = F16.

[0048] When α6 > α2, the force Fb3 applied by the third shock absorber to the rear end of the outer drum is less than the force applied by the first shock absorber to the front end of the outer drum, i.e., Fb3 < Fa1, F15 < F1. In other words, when α6 > α2, the force applied by the first shock absorber to the front end of the outer drum is greater, and the force applied by the third shock absorber to the rear end is smaller. The rear end of the outer drum is easier to balance than the front end. Therefore, the vibration amplitude of the front end is greater than that of the rear end, causing the front end to collide with the door seal and other components, resulting in mechanical damage. This damages the drum washing machine, reduces its performance, and lowers customer satisfaction.

[0049] Therefore, in this embodiment, α6 and α2 satisfy α6 < α2. Thus, since high-energy matter always actively transfers to the same low-energy matter, and low-energy matter can only passively absorb the same high-energy matter, vibrational energy always tends to be transmitted along the path of least resistance. In the aforementioned drum washing machine, because the force exerted by the first shock absorber on the front end of the outer drum is less than the force exerted by the third shock absorber on the rear end, the front end of the outer drum is more likely to reach a balanced state than the rear end. During the use of the drum washing machine, vibrational energy is transmitted from the front end of the outer drum towards the rear end, achieving a uniform distribution of shock-absorbing force around the outer drum and reducing the instability of the outer drum during use.

[0050] It is understandable that, since the third and fourth shock absorbers are symmetrically distributed on opposite sides of the rear end of the outer cylinder, and the function of the fourth shock absorber is the same as that of the third shock absorber, the setting of the relevant parameter α8 of the fourth shock absorber is consistent with the principle of the relevant parameter α6 of the third shock absorber, so it will not be elaborated here.

[0051] According to an embodiment of this disclosure, the bottom end of the third shock absorber is rotatably connected to the inner bottom wall of the housing via a third adapter.

[0052] The bottom end of the fourth shock absorber is rotatably connected to the inner bottom wall of the housing via the fourth adapter.

[0053] Along the outer circumference of the outer cylinder, the third outer cylinder connector is closer to the top wall of the box than the first outer cylinder connector, and the fourth outer cylinder connector is closer to the top wall of the box than the second outer cylinder connector.

[0054] Another technical solution in the above-mentioned technical solution has the following advantages or beneficial effects: by rotatably connecting the bottom end of the third shock absorber to the inner bottom wall of the cabinet through the third adapter, and rotatably connecting the bottom end of the fourth shock absorber to the inner bottom wall of the cabinet through the fourth adapter, the third shock absorber and the fourth shock absorber can effectively absorb and disperse vibrations and impacts from different directions, thereby improving the shock absorption performance of the washing machine.

[0055] According to an embodiment of this disclosure, a second bottom end connection is provided between the axis center of the rotation shaft of the third adapter (83c) and the axis center of the rotation shaft of the fourth adapter (83d).

[0056] The perpendicular line passing through the axis of the second outer cylinder and perpendicular to the line connecting the second bottom ends is defined as the second vertical line;

[0057] The fifth line and the second vertical line have an angle α5, and α5 and α1 satisfy α1 < α5;

[0058] The seventh line and the second vertical line have an angle α7; α7 and α3 satisfy α3 < α7.

[0059] Another technical solution in the above-mentioned technical solution has the following advantages or beneficial effects: When the angle between the first connecting line and the first vertical line is α1, the force Fa applied by the first shock absorber to the front end of the outer cylinder is decomposed along the horizontal direction and along the vertical direction. The force Fa1 decomposed along the horizontal direction is F1, and the force decomposed along the vertical direction is F2. When the angle between the fifth connecting line and the second vertical line is α5, the force Fb1 applied by the third shock absorber to the rear end of the outer cylinder is decomposed along the horizontal direction and along the vertical direction. The force Fb1 decomposed along the horizontal direction is F11, and the force decomposed along the vertical direction is F12.

[0060] Based on the premise that the first, second, third, and fourth shock absorbers exert equal forces on the outer drum in the vertical direction, F2 = F12, in order to maintain the balance of the drum washing machine.

[0061] In the design of drum washing machines, the front end of the outer drum needs to be more stable. The vibration amplitude at the front end is lower than that at the rear end. This is because the support structure of the outer drum differs between the front and rear ends. The front end houses the door seal and other components, and it also bears the impact of the washing machine door opening and closing, as well as other operations, requiring a more robust design. The rear end, on the other hand, connects to the drive system and is involved in rotation and power transmission; therefore, it has more space to move and a lower probability of collision.

[0062] In this way, during the use of a drum washing machine, the drum rotates and transfers some energy from the front to the back, which relatively reduces the vibration energy and amplitude of the front end of the outer drum, thereby reducing the noise generated at the front end of the outer drum and avoiding noise affecting the user.

[0063] Considering the influence of vibration amplitudes at the front and rear ends of the outer cylinder, the front end needs to be more stable. That is, the force applied to the front end by the first damper is less than the force applied to the rear end by the third damper, i.e., Fa1 < Fb1. Thus, the force required for the front end to reach equilibrium is less than the force required for the rear end to reach equilibrium. The front end is more stable than the rear end. Therefore, the force Fb1 applied to the rear end of the outer cylinder 2 by the third damper is greater than the force Fa1 applied to the front end by the first damper.

[0064] Correspondingly, when Fa1 < Fb1, based on F2 = F12, F1 < F11. Force analysis shows that α1 and α5 must satisfy: α1 < α5. Thus, the rear end of the outer drum requires a larger force from the third shock absorber to reach equilibrium, while the front end requires a smaller force from the first shock absorber. This means the front end of the outer drum is more likely to reach equilibrium and is more stable. Compared to the front end, the rear end of the outer drum is less likely to reach equilibrium and has poorer stability. Therefore, during the operation of the drum washing machine, the vibration energy generated at the front end of the outer drum is transferred from the front to the rear end, reducing the noise generated by the vibration at the front end.

[0065] Conversely, when α1 and α5 satisfy the condition that α1 > α5, the force Fb3 applied by the third shock absorber to the rear end of the outer cylinder is decomposed into horizontal and vertical forces. The force Fb3 decomposed into F15 in the horizontal direction and F16 in the vertical direction.

[0066] Since the force on the outer cylinder in the vertical direction is stable, the force exerted on the outer cylinder by the first shock absorber in the vertical direction is equal to the external force exerted on the outer cylinder by the third shock absorber in the vertical direction. That is to say, F2 = F16.

[0067] When α1 > α5, the force Fb3 applied by the third shock absorber to the rear end of the outer drum is less than the force applied by the first shock absorber to the front end of the outer drum, i.e., Fb3 < Fa1, F15 < F1. In other words, when α1 > α5, the force applied by the first shock absorber to the front end of the outer drum is greater, and the force applied by the third shock absorber to the rear end is smaller. The rear end of the outer drum is easier to balance than the front end. Therefore, the vibration amplitude of the front end is greater than that of the rear end, causing the front end to collide with the door seal and other components, resulting in mechanical damage. This damages the washing machine, reduces its performance, and lowers customer satisfaction.

[0068] Therefore, in this embodiment, α1 and α5 satisfy the condition that α1 < α5. Thus, since high-energy matter always actively transfers to the same low-energy matter, and low-energy matter can only passively absorb the same high-energy matter, vibrational energy always tends to be transmitted along the path of least resistance. In the aforementioned drum washing machine, because the force exerted by the first shock absorber on the front end of the outer drum is less than the force exerted by the third shock absorber on the rear end, the front end of the outer drum is more likely to reach a balanced state than the rear end. During the use of the drum washing machine, vibrational energy is transmitted from the front end of the outer drum towards the rear end, achieving a uniform distribution of shock-absorbing force around the outer drum and reducing the instability of the outer drum during use.

[0069] It is understandable that, since the third and fourth shock absorbers are symmetrically distributed on opposite sides of the rear end of the outer cylinder, and the function of the fourth shock absorber is the same as that of the third shock absorber, the setting of the relevant parameter α7 of the fourth shock absorber is consistent with the principle of the relevant parameter α5 of the third shock absorber, so it will not be elaborated here.

[0070] According to an embodiment of this disclosure, a second bottom end connection line is provided between the axis center of the third adapter rotation shaft and the axis center of the fourth adapter rotation shaft;

[0071] The vertical distance from the axis of the second outer cylinder to the second bottom end is LB, and LA and LB satisfy: LA=LB.

[0072] Another technical solution mentioned above has the following advantages or beneficial effects: by setting LA to LB, the first shock absorber, the second shock absorber, the third shock absorber, and the fourth shock absorber are symmetrically distributed at the front and rear ends of the outer drum of the drum washing machine, which helps to disperse vibration energy, reduce unbalanced vibration, and improve the overall stability of the drum washing machine.

[0073] According to an embodiment of this disclosure, the vertical distance from the first connecting center point to the first bottom end on the radial section of the roller is La, and the vertical distance from the third connecting center point to the second bottom end on the radial section of the roller is Lb; La and Lb satisfy: La < Lb.

[0074] Another technical solution described above has the following advantages or beneficial effects: When designing the damping system, the damping effect at the front end of the outer cylinder is stronger than that at the rear end, so that during motor operation, the energy generated by the vibration of the drum and the outer cylinder can be transferred to the rear ends of the drum and the outer cylinder, thus limiting the collision hazards caused by the outer cylinder and the drum. By setting La to be less than Lb, the angle α2 between the first and second connecting lines is greater than the angle α6 between the fifth and sixth connecting lines. The angle α4 between the third and fourth connecting lines is greater than the angle α8 between the seventh and eighth connecting lines. The force applied by the first and second dampers to reach equilibrium at the front end of the outer cylinder is less than the force applied by the third and fourth dampers at the rear end of the outer cylinder. The front end of the outer cylinder is more likely to reach equilibrium, and its damping effect is stronger than that at the rear end. Therefore, the energy generated by the vibration of the drum and the outer cylinder can be transferred to the rear ends of the drum and the outer cylinder, thus limiting the collision hazards caused by the outer cylinder and the drum. Conversely, when La > Lb, the force required by the first and second shock absorbers to achieve a balanced state at the front end of the outer drum is greater than the force required by the third and fourth shock absorbers at the rear end of the outer drum. The front end of the outer drum is not easy to achieve a balanced state, and the front end of the outer drum shakes a lot. The noise generated at the front end is directly transmitted to the user, which is not conducive to reducing the noise generated during the use of the drum washing machine.

[0075] Therefore, in this embodiment, La and Lb satisfy: La < Lb. This improves the damping effect of the first and second shock absorbers on the front end of the outer drum, reducing the noise generated by the drum washing machine. Simultaneously, the vibration energy at the front end of the outer drum is more easily transmitted to the rear end, further enhancing the damping effect of the drum washing machine.

[0076] According to an embodiment of this disclosure: 418mm <LB<422mm。

[0077] According to embodiments of this disclosure, at least one of the following limitations must be satisfied:

[0078] La satisfies: 134mm < La < 138mm; Lb satisfies: 139mm < Lb < 143mm.

[0079] According to embodiments of this disclosure, at least one of the following limitations must be satisfied:

[0080] α5 satisfies 39°<α5<43°; α6 satisfies 156°<α6<160°.

[0081] According to embodiments of this disclosure, at least one of the following limitations must be satisfied:

[0082] LA meets the following requirement: 418.5mm <LA<419.5mm。

[0083] According to embodiments of this disclosure, at least one of the following limitations must be satisfied:

[0084] LB meets the requirement of 418.5mm. <LB<419.5mm。

[0085] According to embodiments of this disclosure, at least one of the following limitations must be satisfied:

[0086] La satisfies: 135mm < La < 137mm; Lb satisfies: 140mm < Lb < 142mm.

[0087] According to embodiments of this disclosure, at least one of the following limitations must be satisfied:

[0088] α2 satisfies: 167°<α2<169°.

[0089] According to embodiments of this disclosure, at least one of the following limitations must be satisfied:

[0090] α1 satisfies: 36°<α1<38°.

[0091] According to an embodiment of this disclosure, the distance between the first connection center point and the second connection center point is defined as L2;

[0092] The distance between the third connection center point and the fourth connection center point is defined as L4;

[0093] L2 and L4 satisfy: L4>L2.

[0094] Another technical solution described above has the following advantages or beneficial effects: L4 > L2, meaning the third and fourth shock absorbers located at the rear end occupy more space. The larger top spacing (L4 > L2) allows the third and fourth shock absorbers to cover a larger area, thereby more effectively absorbing and attenuating vibration energy and enhancing the shock absorption effect at the rear end.

[0095] According to an embodiment of this disclosure, a drum washing machine is also provided, comprising a cabinet having a placement space, the outer surface of which has a left side, a right side, a front side, and a rear side; an outer drum disposed in the placement space; the outer drum having an outer drum cavity, the outer drum including: a third outer drum connector located on the left side of the outer wall of the outer drum; a fourth outer drum connector located on the right side of the outer wall of the outer drum; the outer drum having a rear end near the rear side; a drum disposed in the outer drum cavity, the drum being rotatably disposed relative to the outer drum; a drive motor, the rotating shaft of the drum passing through the rear end of the outer drum and connected to the output shaft of the drive motor; and a shock absorber for shock absorption. The device includes: a third shock absorber, located on the left side of the housing, with its bottom end closer to the left side than its top end; the top end of the third shock absorber is connected to a third outer cylinder connector of the outer cylinder; and its bottom end is rotatably connected to the inner bottom wall of the housing via a third adapter. A fourth shock absorber, located on the right side of the housing, with its bottom end closer to the right side than its top end; the top end of the fourth shock absorber is connected to a fourth outer cylinder connector of the outer cylinder; and its bottom end is rotatably connected to the inner bottom wall of the housing via a fourth adapter. Along the axial direction of the outer cylinder... The tops of the third and fourth shock absorbers are both connected to the outer drum, which is closer to the rear side than the front side. The outer diameter of the outer drum is D1, and the width of the outer wall of the drum washing machine is L. D1 and L satisfy: 0.93 < D1 / L < 0.98. The center point between the top of the third shock absorber and the third outer drum connector is defined as the third connection center point. The axis passing through the third connection center point on the radial section of the outer drum is defined as the second outer drum axis. The line segment between the third connection center point and the second outer drum axis is the fifth connecting line. The third connection center point and the third adapter... The line segment between the two points of the axis center of the moving shaft is the sixth line; the angle between the fifth and sixth lines at the third connection center point is α6, and α6 satisfies 156°<α6<160°; the top of the fourth shock absorber and the center point of the fourth outer cylinder connector are defined as the fourth connection center point, the line segment passing through the fourth connection center point and the axis center of the second outer cylinder is the seventh line, and the line segment between the fourth connection center point and the axis center of the fourth adapter rotating shaft is the eighth line; the angle between the seventh and eighth lines at the fourth connection center point is α8, and α8 satisfies 156°<α8<160°.

[0096] Another technical solution described above has the following advantages or beneficial effects: When the angle between the fifth and sixth lines is α6, the force Fb1 applied to the outer cylinder by the third shock absorber is decomposed horizontally and vertically. The force Fb1 decomposed horizontally is F11, and the force decomposed vertically is F12. When α6 < 156°, the force Fb2 applied to the rear end of the outer cylinder by the third shock absorber is decomposed horizontally and vertically. The force Fb2 decomposed horizontally is F13, and the force decomposed vertically is F14. Since the force on the outer cylinder in the vertical direction is stable, the force applied to the outer cylinder by the third shock absorber in the vertical direction is constant. Therefore, F14 = F12. However, when the angle α6 < 156°, the force applied to the outer cylinder by the third shock absorber in the vertical direction needs to remain constant. This means that the total force Fb2 applied to the outer cylinder by the third shock absorber must be increased because the proportion of the vertical component in the total force decreases at a larger angle between the fifth line and the second vertical line. Therefore, in order to maintain the same vertical force component, Fb2 must be greater than Fb1, and F13 must be greater than F11.

[0097] When α6 < 156°, the outer cylinder requires a greater force from the third damper to reach equilibrium. This means the outer cylinder is more difficult to balance because a greater force is needed to maintain vertical stability. This places higher demands on the third damper.

[0098] Conversely, when α6 > 160°, the force applied to the outer cylinder by the third shock absorber is Fb3. The force of Fb3 decomposed in the horizontal direction is F15, and the force decomposed in the vertical direction is F16.

[0099] Since the force on the outer cylinder in the vertical direction is stable, the force exerted by the third shock absorber on the outer cylinder in the vertical direction remains constant. However, when the included angle α6 > 160°, the force exerted by the third shock absorber on the outer cylinder in the vertical direction must remain constant. This means that the total force Fb3 exerted by the third shock absorber on the outer cylinder must decrease because, at a smaller angle between the fifth line and the second vertical line, the proportion of the vertical component in the total force decreases. Therefore, to maintain the same vertical force component, Fb3 must be less than Fb1, and F15 must be less than F11.

[0100] In other words, as the angle between the fifth and sixth connecting lines α6 increases, the outer cylinder 2 requires less force from the third shock absorber 825 to reach equilibrium. This means the outer cylinder is easier to balance, and the requirements for the third shock absorber are reduced. However, the larger the angle α6, the larger the angle between the bottom to top of the third shock absorber and the horizontal direction, resulting in a smaller effective stroke of the third shock absorber. This causes the third shock absorber to be unable to effectively dampen the rear end of the outer cylinder, necessitating the replacement with a different model of third shock absorber, which incurs additional debugging costs.

[0101] Therefore, in the embodiment of the present application, α6 satisfies: 156° < α6 < 160°. By adjusting the relevant angle α6 between the third shock absorber and the outer cylinder, the force that the third shock absorber needs to apply when the outer cylinder reaches the equilibrium state is reduced. By optimizing the angle setting, the drum washing machine can maintain balance and stability under a wider range of operating conditions, which helps to improve the reliability of the drum washing machine. By reducing the force that the third shock absorber needs to apply, its working load can be reduced, thereby extending the service life of the third shock absorber. This reduces the frequency of replacement and maintenance and lowers the long-term maintenance cost.

[0102] It can be understood that since the third shock absorber and the fourth shock absorber are symmetrically distributed on the opposite sides of the rear end of the outer cylinder, the function of the fourth shock absorber is the same as that of the third shock absorber. Therefore, the setting principle of the relevant parameter α8 of the fourth shock absorber is the same as that of the relevant parameter α6 of the third shock absorber, so it will not be elaborated here.

[0103] According to the embodiment of the present disclosure, the distance between the axis points of the rotation axes of the third adapter and the fourth adapter is L3; the outer diameter of the outer cylinder is D1.

[0104] L3 and D1 satisfy: 0.95 < L3 / D1 < 0.98;

[0105] Another technical solution in the above technical solutions has the following advantages or beneficial effects: The distance L3 between the axis points of the rotation axes of the third adapter and the fourth adapter and the outer diameter D1 of the outer cylinder satisfy: 0.95 < L3 / D1 < 0.98, which ensures the effective movement stroke and installation angle of the third shock absorber and the fourth shock absorber, and improves the shock absorption effect of the shock absorber.

[0106] According to the embodiment of the present disclosure, there is a second bottom connection line between the axis point of the rotation axis of the third adapter and the axis point of the rotation axis of the fourth adapter; and a perpendicular line passing through the axis of the second outer cylinder and perpendicular to the second bottom connection line is defined as the second vertical line;

[0107] There is an included angle α5 between the fifth connection line and the second vertical line, and α5 satisfies 39° < α5 < 43°;

[0108] There is an included angle α7 between the seventh connection line and the second vertical line, and α7 satisfies 39° < α7 < 43°.

[0109] Another technical solution in the above technical solution has the following advantages or beneficial effects: When the angle between the fifth connecting line and the second vertical line is α5, the force Fb1 applied by the third shock absorber to the outer cylinder is decomposed in the horizontal direction and in the vertical direction. The force Fb1 decomposed in the horizontal direction is F11, and the force decomposed in the vertical direction is F12. When α6 decreases, the force Fb2 applied by the third shock absorber to the rear end of the outer cylinder is decomposed in the horizontal direction and in the vertical direction. The force Fb2 decomposed in the horizontal direction is F13, and the force decomposed in the vertical direction is F14.

[0110] Since the force on the outer cylinder in the vertical direction is stable, the force exerted by the third shock absorber on the outer cylinder in the vertical direction remains constant. Therefore, F14 equals F12. However, when the included angle α5 > 43°, the force exerted by the third shock absorber on the outer cylinder in the vertical direction must remain constant. This means that the total force Fb2 exerted by the third shock absorber on the outer cylinder must increase because, at a larger angle between the fifth line and the second vertical line, the proportion of the vertical component in the total force decreases. Therefore, to maintain the same vertical force component, Fb2 must be greater than Fb1, and F13 must be greater than F11.

[0111] When α5 > 43°, the outer cylinder requires a greater force from the third damper to reach equilibrium. This means the outer cylinder is more difficult to balance because a greater force is needed to maintain vertical stability. This places higher demands on the third damper.

[0112] Conversely, when α5 < 39°, the force applied to the outer cylinder by the third shock absorber is Fb3. The force of Fb3 decomposed in the horizontal direction is F15, and the force decomposed in the vertical direction is F16.

[0113] Since the force on the outer cylinder in the vertical direction is stable, the force exerted by the third shock absorber on the outer cylinder in the vertical direction remains constant. However, when the included angle α5 < 39°, the force exerted by the third shock absorber on the outer cylinder in the vertical direction must remain constant. This means that the total force Fb3 exerted by the third shock absorber on the outer cylinder must decrease because, at a smaller angle between the fifth line and the second vertical line, the proportion of the vertical component in the total force increases. Therefore, to maintain the same vertical force component, Fb3 must be less than Fb1, and F15 must be less than F11.

[0114] In other words, when the angle α5 between the fifth line and the second vertical line decreases, the outer cylinder requires less force from the third shock absorber to reach equilibrium. This means the outer cylinder is easier to balance, and the requirements for the third shock absorber are reduced. However, the smaller the angle α5, the larger the angle between the bottom to top of the third shock absorber and the horizontal direction, resulting in a smaller effective stroke of the third shock absorber. This causes the third shock absorber to be unable to effectively dampen the rear end of the outer cylinder, necessitating the replacement with a different model of third shock absorber, which incurs additional debugging costs.

[0115] Therefore, in the embodiments of the present application, α5 satisfies: 39° < α5 < 43°. By adjusting the relevant angle α5 between the third shock absorber and the outer cylinder, the force required to be exerted by the third shock absorber when the outer cylinder reaches the equilibrium state is reduced. By optimizing the angle setting, the drum washing machine can maintain balance and stability under a wider range of operating conditions, which helps to improve the reliability of the drum washing machine. By reducing the force required to be exerted by the third shock absorber, its working load can be reduced, thereby extending the service life of the third shock absorber. This reduces the frequency of replacement and maintenance, and lowers the long-term maintenance cost.

[0116] It can be understood that since the third shock absorber and the fourth shock absorber are symmetrically distributed on the opposite sides of the rear end of the outer cylinder, the function of the fourth shock absorber is the same as that of the third shock absorber. Therefore, the setting principle of the relevant parameter α7 of the fourth shock absorber is the same as that of the relevant parameter α5 of the third shock absorber, so it will not be elaborated here.

[0117] According to the embodiments of the present disclosure, the vertical distance from the axis of the second outer cylinder to the connection line of the second bottom end is LB, and LB satisfies: 418 mm < LB < 422 mm.

[0118] Another technical solution in the above technical solutions has the following advantages or beneficial effects: By setting LB to: 418 mm < LB < 422 mm, in this way, the volume of the outer cylinder can maximize the space utilization, avoid space waste, and at the same time, it can ensure that the drum has a sufficient washing cavity, and the clothes can fully tumble, unfold and rub during the washing process, improving the washing effect and efficiency.

[0119] When 418 mm > LB, when the height of the drum washing machine box is the same in the industry, there is not enough space at the bottom of the box to place other key components such as the motor drainage system.

[0120] When 422 mm < LB, when the height of the drum washing machine box is the same in the industry, there is not enough space at the top of the box to place other key components such as the soap box.

[0121] According to an embodiment of this disclosure, the outer cylinder includes: a first outer cylinder connector located on the left side of the outer wall of the outer cylinder; and a second outer cylinder connector located on the right side of the outer wall of the outer cylinder. The shock absorber includes: a first shock absorber located on the left side of the housing; the bottom end of the first shock absorber is closer to the left side than its top end; the top end of the first shock absorber is connected to the first outer cylinder connector; and the bottom end of the first shock absorber is rotatably connected to the inner bottom wall of the housing via a first adapter; and a second shock absorber located on the right side of the housing; the bottom end of the second shock absorber is closer to the right side than its top end; the top end of the second shock absorber is connected to the second outer cylinder connector; and the bottom end of the second shock absorber is rotatably connected to the inner bottom wall of the housing via a second adapter; wherein, along the axial direction of the outer cylinder, the top ends of the first and second shock absorbers are connected to the outer cylinder. The position of the first shock absorber is closer to the front side than the rear side; the center point where the top of the first shock absorber is connected to the first outer cylinder connector is defined as the first connection center point; the axis passing through the first connection center point on the radial section of the outer cylinder is defined as the first outer cylinder axis; there is a first line connecting the first connection center point and the first outer cylinder axis; and there is a second line connecting the first connection center point and the axis of the first adapter rotation shaft; the line connecting the axis of the first adapter 83a rotation shaft and the axis of the second adapter 83b rotation shaft is defined as the first bottom line; and the perpendicular line passing through the axis of the first outer cylinder and perpendicular to the first bottom line is defined as the first vertical line. The first connecting line and the first vertical line have an angle α1, and the first connecting line and the second connecting line have an angle α2; α5 and α1 satisfy α1 < α5; α6 and α2 satisfy α6 < α2; the top of the second shock absorber is connected to the center point of the second outer cylinder connector, which is defined as the second connecting center point, and there is a third connecting line between the second connecting center point and the axis of the first outer cylinder; and there is a fourth connecting line between the second connecting center point and the axis of the second adapter rotation shaft; the third connecting line and the first vertical line have an angle α3, and there is an angle α4 between the third connecting line and the fourth connecting line; α7 and α3 satisfy α3 < α7; α8 and α4 satisfy α8 < α4.

[0122] Another technical solution in the above-mentioned technical solution has the following advantages or beneficial effects: α5 and α1 satisfy the condition that α1 < α5; α6 and α2 satisfy the condition that α6 < α2; α7 and α3 satisfy the condition that α3 < α7; α8 and α4 satisfy the condition that α8 < α4. Thus, for the front end of the outer cylinder to reach a balanced state, the forces applied by the first and second shock absorbers are less than the forces applied by the third and fourth shock absorbers at the rear end of the outer cylinder. The front end of the outer cylinder is more likely to reach a balanced state, and the damping effect at the front end is stronger than that at the rear end. Therefore, the energy generated by the vibration of the roller and the outer cylinder can be transferred to the rear end of the roller and the rear end of the outer cylinder, thus limiting the collision hazards caused by the outer cylinder and the roller.

[0123] According to an embodiment of this disclosure, the top end of the first shock absorber is connected to the first outer cylinder connector, and the bottom end of the first shock absorber is rotatably connected to the inner bottom wall of the housing via the first adapter.

[0124] The top of the second shock absorber is connected to the second outer cylinder connector, and the bottom of the second shock absorber is rotatably connected to the inner bottom wall of the housing through the second adapter.

[0125] Along the outer circumference of the outer cylinder, the third outer cylinder connector is closer to the top wall of the box than the first outer cylinder connector, and the fourth outer cylinder connector is closer to the top wall of the box than the second outer cylinder connector.

[0126] Another technical solution described above has the following advantages or beneficial effects: By setting a first outer drum connector and a second outer drum connector on the outer wall of the outer drum, the first and second shock absorbers are effectively fixed, thereby improving the working efficiency of the first and second shock absorbers and reducing the vibration and noise generated by the drum washing machine during operation. Simultaneously, by connecting the top of the first shock absorber to the first outer drum connector and the top of the second shock absorber to the second outer drum connector, the vibration and impact forces received by the outer drum can be better transmitted and dispersed, avoiding stress concentration at a single point, thus extending the service life of the outer drum and the shock absorbers. By adding a first and a second shock absorber, multi-point support can be achieved, thereby distributing the vibration and impact forces of the outer drum and the drum more evenly. This helps reduce the load on individual shock absorbers and improves the overall shock absorption effect.

[0127] According to an embodiment of this disclosure, a first bottom connection line is formed between the center point of the bottom rotation shaft of the first shock absorber and the center point of the bottom rotation shaft of the second shock absorber.

[0128] The outer cylinder has a front end, which is closer to the front side than the rear end. The vertical distance from the axis of the front end to the first bottom end is LA.

[0129] LA and LB satisfy: LA = LB.

[0130] Another technical solution mentioned above has the following advantages or beneficial effects: when LA equals LB, the front and rear ends of the outer drum of the drum washing machine are symmetrically distributed, which helps to evenly distribute vibration energy, reduce unbalanced vibration, and improve the overall stability of the drum washing machine.

[0131] According to an embodiment of this disclosure, the vertical distance from the first connecting center point to the first bottom end on the radial section of the roller is La, and the vertical distance from the third connecting center point to the second bottom end on the radial section of the roller is Lb; La and Lb satisfy: La < Lb.

[0132] Another technical solution in the above technical solutions has the following advantages or beneficial effects: When designing the shock absorption system, the shock absorption effect at the front end of the outer cylinder is stronger than that at the rear end of the outer cylinder, so that during the operation of the motor, the energy generated by the vibration of the drum and the outer cylinder can be transferred to the rear end of the drum and the rear end of the outer cylinder, so as to limit the collision damage caused by the outer cylinder and the drum. By setting La to be less than Lb, in this way, the suppression of the first shock absorber and the second shock absorber provided at the front end of the outer cylinder on the outer cylinder is greater than the suppression of the fourth shock absorber on the rear end of the outer cylinder. The shock absorption effect at the front end of the outer cylinder is stronger than that at the rear end of the outer cylinder. The degree of horizontal shaking of the rear end of the outer cylinder relative to the front end of the outer cylinder is large, and the tendency of the rear end of the outer cylinder to rotate along the centroid is large. In this way, the energy generated by the vibration of the drum and the outer cylinder can be transferred to the rear end of the drum and the rear end of the outer cylinder, so as to limit the collision damage caused by the outer cylinder and the drum. On the contrary, when La > Lb, the suppression of the first shock absorber and the second shock absorber provided at the front end of the outer cylinder on the outer cylinder is less than the suppression of the fourth shock absorber on the rear end of the outer cylinder. The degree of shaking at the front end of the outer cylinder is large, and the noise generated at the front end is directly transmitted to the user, which is not conducive to reducing the noise generated during the use of the drum washing machine.

[0133] According to an embodiment of the present disclosure, at least one of the following three limitations is satisfied:

[0134] LA satisfies: 418 mm < LA < 422 mm; La satisfies: 134 mm < La < 138 mm; Lb satisfies: 139 mm < Lb < 143 mm;

[0135] According to an embodiment of the present disclosure, at least one of the following four limitations is satisfied:

[0136] α1 satisfies: 35° < α1 < 39°; α2 satisfies: 166° < α2 < 170°; α3 satisfies: 35° < α3 < 39°; α4 satisfies: 166° < α4 < 170°.

[0137] According to an embodiment of the present disclosure, at least one of the following two limitations is satisfied:

[0138] LA satisfies: 418.5 mm < LA < 419.5 mm; LB satisfies: 418.5 mm < LB < 419.5 mm.

[0139] According to an embodiment of the present disclosure, at least one of the following two limitations is satisfied:

[0140] La satisfies: 135 mm < La < 137 mm; Lb satisfies: 140 mm < Lb < 142 mm;

[0141] According to an embodiment of the present disclosure, at least one of the following four limitations is satisfied:

[0142] α1 satisfies: 36°<α1<38°; α2 satisfies: 167°<α2<169°; α3 satisfies: 36°<α3<38°; α4 satisfies: 167°<α4<169°;

[0143] According to embodiments of this disclosure, at least one of the following four conditions must be met:

[0144] α5 satisfies 40.5°<α5<41.5°; α6 satisfies 157°<α6<159°; α7 satisfies 40°<α7<41°; α8 satisfies 157°<α8<159°.

[0145] According to an embodiment of this disclosure, the distance between the first connection center point and the second connection center point is defined as L2;

[0146] The distance between the third connection center point and the fourth connection center point is defined as L4;

[0147] L2 and L4 satisfy: L4>L2.

[0148] Another technical solution described above has the following advantages or beneficial effects: the distance between the top ends of the third and fourth dampers is greater than the distance between the top ends of the first and second dampers. This allows the rear-end dampers to occupy more space. The larger top end distance (L4>L2) enables the third and fourth dampers to cover a larger area, thereby more effectively absorbing and attenuating vibration energy and enhancing the rear-end damping effect.

[0149] According to an embodiment of this disclosure, the distance between the center point of the first adapter's rotating shaft and the center point of the second adapter's rotating shaft is L1.

[0150] The distance between the center point of the rotating shaft of the third adapter and the center point of the rotating shaft of the fourth adapter is L3.

[0151] L1 and L3 satisfy: L3 = L1.

[0152] Another technical solution described above has the following advantages or beneficial effects: the bottom distance between the first and second shock absorbers is equal to the bottom distance between the third and fourth shock absorbers. This ensures that the bottom distances of the first, second, third, and fourth shock absorbers are equal, which helps maintain the symmetry and stability of the drum washing machine. This symmetry can evenly distribute vibration energy and reduce unbalanced vibration.

[0153] According to an embodiment of this disclosure, there is a distance B between the bottom end of the inner wall of the left side and the bottom end of the inner wall of the right side, and D1 and B satisfy: 0.92 < D1 / B < 0.99.

[0154] Another technical solution in the above technical solutions has the following advantages or beneficial effects: It avoids friction and collision between the outer cylinder and the front and rear sides of the box body. At the same time, it ensures that the outer cylinder has a sufficient outer cylinder cavity, and the clothes can fully tumble, unfold and rub during the washing process, improving the washing effect and efficiency. In this way, the volume of the outer cylinder cavity can maximize the space utilization, avoid space waste, and improve the practicability of the washing machine and user satisfaction.

[0155] According to an embodiment of the present disclosure, at least one of the following four is satisfied:

[0156] L1 satisfies: 530mm < L1 < 560mm. L2 satisfies: 365mm < L2 < 369mm. L3 satisfies: 530mm < L3 < 560mm. L4 satisfies: 309mm < L4 < 403mm.

[0157] According to an embodiment of the present disclosure, it further includes a reinforcing member. The top end of the reinforcing member is connected to the adapter, and the bottom end of the reinforcing member is connected to the inner bottom wall of the box body. The reinforcing member is used to connect the bottom end of the adapter to the inner bottom wall of the box body; the reinforcing member extends in the direction from the front side to the rear side.

[0158] Another technical solution in the above technical solutions has the following advantages or beneficial effects: Setting an adapter to connect the reinforcing member and the shock absorber can enhance the support strength at the bottom end of the shock absorber, meet the support strength of a large-diameter outer cylinder, improve stability, and avoid unstable connection at the bottom end of the shock absorber.

[0159] According to an embodiment of the present disclosure, the adapter includes: an adapter bottom plate;

[0160] Adapter vertical plates, provided above the adapter bottom plate, and the bottom end of the adapter vertical plates is connected to the adapter bottom plate; there are two adapter vertical plates, and the two adapter vertical plates are arranged opposite to each other;

[0161] Adapter first connection holes are provided on the two adapter vertical plates, and the adapter first connection holes penetrate through the adapter vertical plates in the thickness direction of the adapter vertical plates, and the bottom end of the shock absorber is located between the two adapter vertical plates.

[0162] Setting the adapter bottom plate and the adapter vertical plates facilitates the setting of the adapter first connection holes and facilitates the connection of the shock absorber and the adapter.

[0163] According to an embodiment of the present disclosure, the adapter vertical plates are arranged along the width direction of the box body. In the width direction of the box body, the adapter first connection holes are provided on the side of the middle of the adapter vertical plates away from the drum rotation axis, which facilitates lengthening the installation length of the shock absorber.

[0164] According to an embodiment of the present disclosure, the reinforcing member is provided with a first clamping structure. The adapter includes:

[0165] The second snap-fit ​​structure is connected to the adapter base plate and located below the adapter base plate. The second snap-fit ​​structure and the first snap-fit ​​structure snap together to facilitate the connection of the adapter parts and components.

[0166] According to the embodiments of this disclosure, the adapter base plate is provided with a first connecting structure for connecting with the reinforcing member. In the front-rear direction of the housing, the first connecting structure is located between two adapter uprights, which can effectively solve the problem that when the whole machine vibrates at high speed, the vibration of the outer cylinder is transmitted to the adapter through the shock absorber, thereby causing abnormal noise between the adapter and the reinforcing member.

[0167] According to an embodiment of this disclosure, in the width direction of the housing, the first connecting structure is located at the center of the adapter base plate on the side near the rotating shaft of the roller.

[0168] According to an embodiment of this disclosure, the adapter base plate is provided with a second connecting structure for connecting with the reinforcing member. In the width direction of the housing, the second connecting structure is located on the side of the first connecting structure away from the rotating shaft of the drum, further reducing the vibration of the outer cylinder transmitted to the adapter through the shock absorber, thereby reducing the abnormal noise caused by the gap between the adapter and the reinforcing member.

[0169] According to an embodiment of this disclosure, the second connection structure is a third connection hole of the adapter, which penetrates the adapter base plate in the thickness direction and extends to the adapter upright plate at the top end.

[0170] According to an embodiment of this disclosure, the two adapter plates are a first adapter plate and a second adapter plate, and the adapter has at least two third connection holes, with at least one adapter third connection hole extending into the first adapter plate to facilitate the installation of the adapter third connection hole. Attached Figure Description

[0171] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0172] Figure 1 This is a front view of a drum washing machine according to an embodiment of this application;

[0173] Figure 2 This is a perspective view of a drum washing machine with the door removed according to an embodiment of this application;

[0174] Figure 3 This is a partial structural diagram of a drum washing machine according to an embodiment of this application;

[0175] Figure 4This is another partial structural diagram of the drum washing machine according to an embodiment of this application;

[0176] Figure 5 yes Figure 4 A magnified view of a section at point A in the middle;

[0177] Figure 6 This is a partial exploded view of the structure of a drum washing machine according to an embodiment of this application;

[0178] Figure 7 This is a partial front view of the structure of a drum washing machine according to an embodiment of this application;

[0179] Figure 8 This is a partial structural diagram of a drum washing machine according to another perspective of an embodiment of this application;

[0180] Figure 9 This is a structural diagram of the adapter according to an embodiment of this application;

[0181] Figure 10 This is a partial exploded view of the drum washing machine according to another embodiment of this application;

[0182] Figure 11 This is a partial structural diagram of the outer cylinder according to an embodiment of this application;

[0183] Figure 12 This is a partial structural diagram of the outer cylinder according to an embodiment of this application;

[0184] Figure 13 This is a partial structural diagram of a drum washing machine according to another embodiment of this application;

[0185] Figure 14 This is a cross-sectional view of a drum washing machine according to an embodiment of this application;

[0186] Figure 15 This is a partial structural diagram of a drum washing machine according to another perspective of an embodiment of this application;

[0187] Figure 16 This is a structural diagram of the flushing component according to an embodiment of this application;

[0188] Figure 17 This is a cross-sectional view of the flushing component according to an embodiment of this application;

[0189] Figure 18 This is a working diagram of the flushing and drying air duct according to an embodiment of this application;

[0190] Figure 19 This is another working diagram of the flushing and drying air duct in the embodiments of this application;

[0191] Figure 20 This is a partial structural diagram of a drum washing machine according to another embodiment of this application;

[0192] Figure 21This is a structural diagram of the condenser plate according to an embodiment of this application;

[0193] Figure 22 This is a structural diagram of the flushing component from another perspective according to an embodiment of this application;

[0194] Figure 23 This is a structural diagram of the connector according to an embodiment of this application;

[0195] Figure 24 This is a structural diagram of the rinsing tray according to an embodiment of this application;

[0196] Figure 25 This is a partial structural diagram of the flushing component according to an embodiment of this application;

[0197] Figure 26 This is a structural diagram of the connector from another perspective in an embodiment of this application;

[0198] Figure 27 This is a partial structural diagram of the flushing component from another perspective according to an embodiment of this application;

[0199] Figure 28 This is a partial structural diagram of the outer cylinder from another perspective of an embodiment of this application;

[0200] Figure 29 This is a partial structural diagram of the flushing component from another perspective according to an embodiment of this application;

[0201] Figure 30 This is a structural diagram of a drum washing machine according to an embodiment of this application;

[0202] Figure 31 This is a partial flowchart of the spin-drying process of a drum washing machine according to an embodiment of this application;

[0203] Figure 32 This is another partial flowchart of the spin-drying process of a drum washing machine according to an embodiment of this application;

[0204] Figure 33 This is another partial flowchart of the separate spin-drying process of the drum washing machine according to an embodiment of this application;

[0205] Figure 34 This is a schematic diagram of the structure of the front end portion of the outer drum of the drum washing machine according to an embodiment of this application. Figure 1 ;

[0206] Figure 35 This is a schematic diagram of the structure of the front end portion of the outer drum of the drum washing machine according to an embodiment of this application. Figure 2 ;

[0207] Figure 36 This application analyzes the force distribution at the front end of the outer drum of a drum washing machine according to an embodiment. Figure 1 ;

[0208] Figure 37This application analyzes the force distribution at the front end of the outer drum of a drum washing machine according to an embodiment. Figure 2 ;

[0209] Figure 38 This application analyzes the force distribution at the front end of the outer drum of a drum washing machine according to an embodiment. Figure 3 ;

[0210] Figure 39 This is a schematic diagram of the structure of the rear end portion of the outer drum of the drum washing machine according to an embodiment of this application. Figure 1 ;

[0211] Figure 40 This is a schematic diagram of the structure of the rear end portion of the outer drum of the drum washing machine according to an embodiment of this application. Figure 2 ;

[0212] Figure 41 This application analyzes the force distribution at the rear end of the outer drum of a drum washing machine according to an embodiment. Figure 1 ;

[0213] Figure 42 This application analyzes the force distribution at the rear end of the outer drum of a drum washing machine according to an embodiment. Figure 2 ;

[0214] Figure 43 This application analyzes the force distribution at the rear end of the outer drum of a drum washing machine according to an embodiment. Figure 3 .

[0215] Explanation of reference numerals in the attached figures:

[0216] The following figures:

[0217] 100 drum washing machines;

[0218] Box 1;

[0219] Front panel 11; Dispensing port 111; Placement space 12;

[0220] outer cylinder 2;

[0221] Outer cylinder opening 21; outer cylinder cavity 22; outer cylinder rear wall 23; return air inlet 231; air outlet duct 261; air outlet 262; outer cylinder first rib 263; outer cylinder second rib 264; outer cylinder first slot 265;

[0222] Outer cylinder first connecting part 266; outer cylinder first positioning part 267; outer cylinder connecting plate 27; outer cylinder connecting hole 271;

[0223] Drum 3; Drum opening 31; Washing chamber 32;

[0224] Door seal 41; Box door 42;

[0225] Air duct housing 50; Drying air duct 51; Condensation tray 52; Shielding area 521; Filter section 5211; Filter hole 52111; Air passage hole 5212;

[0226] Flushing component 63; Flow duct 6311; First flow duct 63111; First flow duct sidewall 631111; First snap-fit ​​part of connector 631112; Flushing chamber 6312; Flow duct wall 6313;

[0227] Connector 632; Second flushing port 6321; Connector partition 6322; Connector partition body 63221; First rib of connector 63222; First partition 632211; First partition through hole 6322111; First connecting part of connector 6322112; First connecting post of connector 6322113; Water inlet channel of flushing chamber 6322114; First convex plate 632212; Second rib of connector 63223; First slot of connector 63224; Third rib of connector 63225; Second slot of connector 63226; Connector enclosure 6323; First mounting hole 63231; Connector cavity 6324; Second connecting part of connector 6325; First positioning part of connector 6326;

[0228] Rinse plate 633; ​​First rinse port 6331; Rinse plate partition 6332; Second partition 63321; Second partition through hole 633211; First connecting part of rinse plate 633212; Recessed platform 633213; Recessed platform side wall 6332131; Second protruding plate 63322; Second snap-fit ​​part 633221; Inner insert plate of rinse plate 6333; Outer insert plate of rinse plate 6334; Side wall of rinse plate 6335; Third rinse port 6336; Fourth rinse port 6337;

[0229] Reinforcing member 81; First reinforcing member 8101; Second reinforcing member 8102; First snap-fit ​​structure 811; First connecting hole of reinforcing member 812; Second connecting hole of reinforcing member 813;

[0230] Shock absorber 82; first connection hole 821 for shock absorber; second connection hole 822 for shock absorber;

[0231] Adapter 83;

[0232] Adapter base plate 831; First connecting structure 8311; Second connecting structure 8312;

[0233] Adapter plate 832; Adapter first connecting hole 8321;

[0234] Second snap-fit ​​structure 833;

[0235] First fastener 841; Second fastener 842; Drying fan 852;

[0236] Motor 861; First detection device 862; Hanging spring 863; Eccentric block 864.

[0237] Outer cylinder connector 200;

[0238] First outer cylinder connector 210; First connection center point B;

[0239] Second outer cylinder connector 220; Second connection center point C;

[0240] Third outer cylinder connector 230; Third connection center point G;

[0241] Fourth outer cylinder connector 240; Fourth connection center point M;

[0242] First outer cylinder axis O1; Second outer cylinder axis O2;

[0243] First adapter 83a; A, the axis center of the first adapter's rotating shaft;

[0244] Second adapter 83b; the axis D of the rotating shaft of the second adapter;

[0245] Third adapter 83c; the axis center point E of the rotating shaft of the third adapter;

[0246] Fourth adapter 83d; the axis center point N of the fourth adapter's rotating shaft.

[0247] First shock absorber 823;

[0248] Second shock absorber 824;

[0249] Third shock absorber 825;

[0250] Fourth shock absorber 826. Detailed Implementation

[0251] To make the objectives, technical solutions, and advantages of this application clearer, the application is described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application without inventive effort are within the scope of protection of this application.

[0252] Obviously, the accompanying drawings described below are merely some examples or embodiments of this application. Those skilled in the art can apply this application to other similar scenarios based on these drawings without any inventive effort. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, any changes to design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as insufficient disclosure of the content of this application.

[0253] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0254] The terms "connection," "linked," and "coupled" used in this application are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Multiple" in this application refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The terms "first," "second," and "third" used in this application are merely to distinguish similar objects and do not represent a specific ordering of objects.

[0255] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0256] This application discloses a drum washing machine 100, which will be described below with reference to the accompanying drawings.

[0257] refer to Figures 1-3 The drum washing machine 100 may include a cabinet 1.

[0258] The distance from the bottom to the top of box 1 can be the height direction of box 1.

[0259] The box 1 can have a width direction. The distance from one end of the box 1 to the other end of the box 1 can be the width direction of the box 1.

[0260] The enclosure 1 can have a front-to-back orientation. The front side of the enclosure 1 can be the side facing the user.

[0261] Of the three directions of box 1—width, front-back, and height—two are perpendicular to each other.

[0262] In some embodiments of this application, reference is made to Figures 1-3 The drum washing machine 100 may include an outer drum 2. The outer drum 2 may be disposed inside the casing 1.

[0263] The enclosure 1 may include a front panel 11 disposed on the side of the enclosure 1. The front panel 11 may be disposed on the front side of the enclosure 1. The front panel 11 forms the front side surface of the enclosure 1.

[0264] The housing 1 may include a rear panel disposed on the side of the housing 1. The front panel 11 and the rear panel may be disposed opposite to each other. The rear panel may be disposed on the rear side of the housing 1. The rear panel forms the rear side surface of the housing 1.

[0265] The housing 1 may include a first side panel disposed on the side of the housing 1. The first side panel may be located between the front panel 11 and the rear panel.

[0266] The housing 1 may include a second side panel disposed on the side of the housing 1. The first side panel may be disposed opposite to the second side panel. The second side panel may be located between the front panel 11 and the rear panel. The first side panel forms the left side surface of the housing 1. The second side panel forms the right side surface of the housing 1.

[0267] The enclosure 1 may include a top plate located on the top of the enclosure 1.

[0268] The front panel 11 can be located below the top panel of the enclosure.

[0269] The housing 1 may include a dispensing port 111 located on the side of the housing 1. The dispensing port 111 may be located on the front side of the housing 1. The dispensing port 111 may be provided on the front panel 11.

[0270] The container 1 can have a placement space 12. The placement space 12 can be connected to the delivery port 111. The outer cylinder 2 can be located inside the placement space 12.

[0271] In some embodiments of this application, reference is made to Figures 1-3 The drum washing machine 100 may include a drum 3.

[0272] The roller 3 can be located inside the outer cylinder 2. The roller 3 can rotate relative to the outer cylinder 2.

[0273] The outer cylinder 2 may include an outer cylinder opening 21 located on the side of the outer cylinder 2. The outer cylinder opening 21 may be located at the front end of the outer cylinder 2.

[0274] An outer cylinder cavity 22 can be formed inside the outer cylinder 2. The outer cylinder cavity 22 can communicate with the outer cylinder opening 21.

[0275] Roller 3 is disposed in the outer cylinder cavity. Roller 3 is rotatably disposed relative to the outer cylinder 2.

[0276] The roller 3 can be located inside the outer cylinder cavity 22, and the roller 3 can rotate relative to the outer cylinder 2.

[0277] The roller 3 may include a roller opening 31 located on the side of the roller. The roller opening 31 is disposed opposite to the outer cylinder opening. The roller opening 31 may be located at the front end of the roller.

[0278] A washing chamber 32 can be formed inside the drum. The washing chamber 32 can communicate with the drum opening 31. The washing chamber 32 can communicate with the dispensing port 111.

[0279] The drum 3 may include a drum side peripheral wall. The drum side peripheral wall may be provided with water perforations that penetrate the drum side peripheral wall. Water can enter and exit the washing chamber through the water perforations.

[0280] Users can place the laundry through the inlet 111 into the drum 3 for washing.

[0281] The outer cylinder 2 may include the outer cylinder side wall.

[0282] The outer cylinder 2 may include a bottom wall disposed on the side of the outer cylinder and opposite to the opening 21 of the outer cylinder. The bottom wall of the outer cylinder is located at the rear end of the outer cylinder.

[0283] In some embodiments of this application, reference is made to Figures 1-3 The drum washing machine 100 may include a door 42. The door 42 is rotatably connected to the cabinet 1. The door 42 can be used to open or close the dispensing inlet 111.

[0284] The door 42 can be rotatably connected to the front panel 11.

[0285] When the cabinet door 42 rotates away from the front panel 11, the inlet 111 is opened, allowing laundry to be placed inside. When the cabinet door 42 rotates towards the front panel 11, the inlet 111 is closed.

[0286] In some embodiments of this application, reference is made to Figures 1-3 The drum washing machine 100 may include a door seal 41.

[0287] The door seal 41 can be connected to the inlet 111 and the outer tube opening 21. The door seal 41 can seal the gap between the inlet 111 and the outer tube opening 21 to prevent the washing water in the outer tube 2 from flowing out of the outer tube 2 and into the tank 1 through the gap between the tank 1 and the outer tube 2.

[0288] In some embodiments of this application, reference is made to Figure 3 The drum washing machine 100 may include a reinforcing member 81. The reinforcing member 81 may be used to support the outer drum 2.

[0289] In some embodiments of this application, reference is made to Figure 3 The drum washing machine 100 may include a shock absorber 82. The shock absorber 82 can absorb shocks from the outer drum 2.

[0290] The top of the shock absorber 82 can be connected to the outer cylinder 2 to support the outer cylinder 2.

[0291] Compared to drum washing machines in related technologies, drum washing machines are developing towards larger drum diameters. However, when the diameter of the outer drum 2 is increased, the original casing 1, reinforcing parts and connecting parts are still used, which limits the stroke of the shock absorber 82 and affects the shock absorption effect due to the installation angle of the shock absorber 82. This cannot meet the vibration control requirements of the shock absorber 82 for the whole machine.

[0292] In some embodiments of this application, reference is made to Figure 4 and Figure 5 The drum washing machine 100 may include an adapter 83.

[0293] The adapter 83 can be a separate component from the shock absorber 82. Alternatively, the adapter 83 can be separate from the shock absorber 82. Because the adapter 83 and the shock absorber 82 are independent parts, if one component fails or needs replacement, the entire system does not need to be replaced; only the faulty or worn component needs to be replaced. This reduces maintenance costs and time.

[0294] The adapter 83 can be a separate component from the reinforcing member 81. Alternatively, the adapter 83 and the reinforcing member 81 can be separate components. Because the adapter 83 and the reinforcing member 81 are independent parts, if one component fails or needs replacement, the entire system does not need to be replaced; only the faulty or worn component needs to be replaced. This reduces maintenance costs and time.

[0295] The adapter 83 can be connected to the reinforcing member 81. The adapter can be connected to the shock absorber 82. The adapter can be connected to the bottom end of the shock absorber 82.

[0296] The adapter 83 includes a first adapter 83a and a second adapter 83b. The first adapter 83a and the second adapter 83b are located near the front end of the outer cylinder 2. The first adapter 83a is located on the left side of the housing. The second adapter 83b is located near the right side of the housing. The first adapter 83a and the second adapter 83b are arranged symmetrically.

[0297] In some embodiments of this application, the top end of the shock absorber 82 is connected to the outer cylinder connector 200 of the outer cylinder 2, and the bottom end of the shock absorber 82 is connected to the inner wall of the housing 1 through the adapter 83. The bottom end of the shock absorber 82 is rotatably connected to the adapter 83.

[0298] By setting the outer cylinder connector 200 and connecting the top of the shock absorber 82 to the outer cylinder 2 through the outer cylinder connector 200, the outer cylinder connector 200 provides a stable connection point for the connection of the shock absorber 82. In this way, the shock absorber 82 is more stable during operation, reducing unnecessary shaking and displacement, thereby improving the shock absorption effect.

[0299] By rotating the bottom end of the shock absorber 82 to the adapter 83, the shock absorber 82 can rotate freely within a certain range, which can better adapt to different vibrations and impacts and improve the shock absorption effect.

[0300] The outer cylinder 2 has a front end. The front end is close to the front side. The shock absorber 82 includes a first shock absorber 823 and a second shock absorber 824. Along the axial direction of the outer cylinder 2, the top end of the first shock absorber 823 and the top end of the second shock absorber 824 are both connected to the outer cylinder 2 closer to the front side than the rear side.

[0301] In this way, by setting the first shock absorber 823 and the second shock absorber 824 at the front end of the outer cylinder 2, the first shock absorber 823 and the second shock absorber 824 can evenly disperse and absorb the vibration and impact generated at the front end of the outer cylinder 2, ensuring that the front end of the outer cylinder 2 remains stable during operation.

[0302] The first shock absorber 823 is located on the left side inside the housing 1, and the second shock absorber 824 is located on the right side inside the housing 1. Both the first shock absorber 823 and the second shock absorber 824 are located within the placement space 12 of the housing 1, with the first shock absorber 823 positioned closer to the left side of the placement space 12, and the second shock absorber 824 positioned closer to the right side of the placement space 12.

[0303] The outer cylinder connector 200 includes a first outer cylinder connector 210 and a second outer cylinder connector 220. The first outer cylinder connector 210 is located on the left side of the front end of the outer cylinder 2, and the second outer cylinder connector 220 is located on the right side of the front end of the outer cylinder 2. The first outer cylinder connector 210 and the second outer cylinder connector 220 are symmetrically arranged at the front end of the outer cylinder.

[0304] The first outer cylinder connector 210 is located on the left side of the outer wall of the outer cylinder 2. The second outer cylinder connector 220 is located on the right side of the outer wall of the outer cylinder. The top end of the first shock absorber 823 is connected to the first outer cylinder connector 210, and the bottom end of the first shock absorber 823 is rotatably connected to the inner bottom wall of the housing 1 via the first adapter 83a. The bottom end of the first shock absorber 823 is closer to the left side than the top end. The top end of the second shock absorber 824 is connected to the second outer cylinder connector 220, and the bottom end of the second shock absorber 824 is rotatably connected to the inner bottom wall of the housing 1 via the second adapter 83b. The bottom end of the second shock absorber 824 is closer to the right side than the top end.

[0305] Along the axial direction of the outer cylinder 2, the top end of the first shock absorber 823 and the top end of the second shock absorber 824 are connected to the outer cylinder 2, which is closer to the front side than the rear side.

[0306] Reference Figures 34 to 35 The center of the rotation axis of the first adapter 83a is defined as the axis center point A of the rotation axis of the first adapter 83a. That is, on the cross section that is perpendicular to the rotation axis of the first adapter 83a and passes through the central axis of the first shock absorber 823, the projection point of the rotation axis of the first adapter 83a is A.

[0307] The center point where the top of the first shock absorber 823 is connected to the first outer cylinder connector 210 is defined as the first connection center point B. That is, on the cross section that is perpendicular to the rotation axis of the first outer cylinder connector 210 and passes through the central axis of the first shock absorber 823, the projection point of the rotation axis of the first outer cylinder connector 210 is B.

[0308] The top of the second shock absorber 824 is connected to the center point of the second outer cylinder connector 220, which is defined as the second connection center point C. That is, on the cross section that is perpendicular to the rotation axis of the second outer cylinder connector 220 and passes through the central axis of the second shock absorber 824, the projection point of the rotation axis of the second outer cylinder connector 220 is C.

[0309] The center of the rotation axis of the second adapter 83b is defined as the axis center point D of the rotation axis of the second adapter 83b. That is, on the cross section that is perpendicular to the rotation axis of the second adapter 83b and passes through the central axis of the second shock absorber 824, the projection point of the rotation axis of the second adapter 83b is D.

[0310] The outer cylinder 2 has a radial cross-section. The radial cross-section passes through the first connection center point B, and the axis of the outer cylinder 2 on the radial cross-section is defined as the first outer cylinder axis O1. That is, the axis of the outer cylinder 2 on the radial cross-section passing through the first connection center point B is defined as the first outer cylinder axis O1.

[0311] The line connecting the axis center A of the first adapter 83a and the axis center D of the second adapter 83b is defined as the first bottom connection line.

[0312] The first vertical line is defined as the line passing through the axis O1 of the first outer cylinder and perpendicular to the line connecting the first bottom end.

[0313] The line connecting the first connection center point B and the first outer cylinder axis O1 is defined as the first connection line.

[0314] The line connecting the first connection center point B and the axis center point A of the first adapter 83a rotation shaft is defined as the second connection line.

[0315] The angle between the first and second lines at the first connection center point B is α2.

[0316] The first connecting line and the first vertical line have an angle α1 between them.

[0317] The line connecting the second connection center point C and the first outer cylinder axis O1 is defined as the third connection line.

[0318] The line connecting the second connection center point C and the axis center point D of the rotating shaft of the second adapter 83b is defined as the fourth connection line.

[0319] The angle between the third and fourth lines at the second connection center point C is α4.

[0320] The third line and the first vertical line form an angle α3.

[0321] The horizontal distance between the center point A of the rotating shaft of the first adapter 83a and the center point D of the rotating shaft of the second adapter 83b is L1.

[0322] The vertical distance from the first outer cylinder axis O1 to the first bottom end is LA.

[0323] Roller 3 has a radial section, which passes through the first connecting center point B. The vertical distance from the first connecting center point B to the first bottom end on the radial section of roller 3 is La.

[0324] The distance between the first connection center point B and the second connection center point C is defined as L2.

[0325] Reference Figures 34 to 35 The first shock absorber 823 and the second shock absorber 824 are symmetrically arranged at the front end of the outer cylinder 2. When the front end of the outer cylinder 2 is symmetrical, the force state at the front end of the outer cylinder 2 will also exhibit symmetry.

[0326] By symmetrically arranging the first shock absorber 823 and the second shock absorber 824 near the front end of the outer cylinder 2, the vibration and impact force generated by the outer cylinder 2 during operation will be distributed to the first shock absorber 823 and the second shock absorber 824, avoiding excessive force on a single shock absorber 82, reducing imbalance and offset, and improving stability and shock absorption effect.

[0327] The bottom end of the first shock absorber 823 is closer to the left side than the top end of the first shock absorber 823. In this way, the first shock absorber 823 is set at an angle. The angled first shock absorber 823 can provide support and cushioning for the front end of the outer cylinder 2 in multiple directions, enhance the stability of the front end of the outer cylinder 2, and reduce the impact of vibration and impact on the front end of the outer cylinder 2.

[0328] The top end of the first shock absorber 823 is connected to the first outer cylinder connector 210 of the outer cylinder 2. By directly connecting the top end of the first shock absorber 823 to the first outer cylinder connector 210, the first outer cylinder connector 210 provides a stable support point for the connection of the first shock absorber 823, which helps the vibration and impact of the outer cylinder 2 to be directly transmitted to the first shock absorber 823.

[0329] The bottom end of the first shock absorber 823 is rotatably connected to the inner bottom wall of the housing 1 through the first adapter 83a, so that the first shock absorber 823 can move and adjust freely in multiple directions, reducing various vibrations and impacts generated at the front end of the outer cylinder 2 during operation.

[0330] The bottom end of the second shock absorber 824 is closer to the right side than the top end of the second shock absorber 824. In this way, the second shock absorber 824 is set at an angle. The angled second shock absorber 824 can provide support and cushioning for the outer cylinder 2 in multiple directions, enhance the front-end stability of the outer cylinder 2, and reduce the impact of vibration and impact on the front end of the outer cylinder 2.

[0331] The top end of the second shock absorber 824 is connected to the second outer cylinder connector 220 of the outer cylinder 2. By directly connecting the top end of the second shock absorber 824 to the second outer cylinder connector 220, the second outer cylinder connector 220 provides a stable support point for the connection of the second shock absorber 824, which helps the vibration and impact of the outer cylinder 2 to be directly transmitted to the second shock absorber 824.

[0332] The bottom end of the second shock absorber 824 is rotatably connected to the inner bottom wall of the housing 1 through the second adapter 83b, so that the second shock absorber 824 can move and adjust freely in multiple directions, reducing various vibrations and impacts generated at the front end of the outer cylinder 2 during operation.

[0333] For example, the first outer cylinder connector 210 can be a connecting plate. The second outer cylinder connector 220 can also be a connecting plate.

[0334] The outer diameter of the outer drum 2 is D1, and the outer wall width of the drum washing machine 100 is L. D1 and L satisfy: 0.93 < D1 / L < 0.98.

[0335] The industry standard for the outer wall width of a large-diameter drum washing machine is 600mm. Given a fixed outer wall width L for the drum washing machine 100, when D1 / L < 0.93, D1 is too small, resulting in an excessively small diameter for the outer drum 2. This leads to wasted internal space, reducing the size of the washing chamber and failing to fully utilize the overall dimensions of the drum washing machine 100. Conversely, when D1 / L > 0.98, the outer drum 2 is too large, potentially causing insufficient space between the cabinet 1 and the outer drum 2, hindering the proper arrangement of other necessary components. Furthermore, insufficient space between the cabinet 1 and the outer drum 2 increases the probability of collision between the outer wall of the outer drum 2 and the cabinet 1. Consequently, the drum washing machine 100 is prone to significant vibration and noise during high-speed rotation, negatively impacting the user experience.

[0336] Therefore, in this embodiment, D1 and L satisfy: 0.93 < D1 / L < 0.98; so as to make full use of the space inside the drum washing machine 100 cabinet 1, while avoiding collision between the outer drum 2 and the cabinet 1.

[0337] Reference Figures 34 to 36 As shown, the outer cylinder 2 has a front end. The front end is close to the front side. The vertical distance LA between the axis of the first outer cylinder and the first bottom end satisfies: 418mm. <LA<422mm。

[0338] In the drum washing machine 100, the external parameters of the cabinet 1, including its length, width, and height, are industry standard dimensions. However, the diameter of the outer drum 2 can vary. Increasing the diameter of the outer drum 2 can significantly increase the size of the outer drum cavity 22, which in turn can increase the size of the washing cavity 32 of the drum 3. This allows the clothes to tumble and unfold fully, helping to improve the cleaning effect of the drum washing machine 100.

[0339] When the diameter of the outer drum 2 is variable, the range of LA is also variable. However, when LA > 422mm, the outer drum 2 occupies too much space at the bottom of the cabinet 1 along its height. This space may be needed to accommodate control circuit components and water circuit components, leading to insufficient space for these components and affecting the overall function and performance of the washing machine. Simultaneously, when LA > 422mm, it also means that the diameter of the outer drum 2 is relatively large. Along the width of the cabinet 1, an excessively large diameter of the outer drum 2 will cause the appearance parameters of the cabinet 1 to exceed industry standard values, affecting the installation and use of the drum washing machine 100.

[0340] In contrast, when LA < 418 mm, along the height direction of the cabinet 1, the outer cylinder 2 does not occupy too much space at the bottom of the cabinet 1. The waterway components and the circuit components are arranged in this space. At the same time, this space has sufficient volume, which leads to insufficient volume of the outer cylinder cavity 22 of the outer cylinder 2, and further insufficient volume of the washing cavity of the drum 3. The area where the drum 3 tumbles, unfolds, and rubs the clothes is reduced, resulting in a waste of space utilization. When LA < 418 mm, it also means that the diameter of the outer cylinder 2 is relatively small. Along the width direction of the cabinet 1, there are gaps between the outer cylinder 2 and the first side plate and the second side plate of the cabinet 1. The existence of these gaps may reduce the installation stability of the outer cylinder 2, increase the shaking and displacement of the outer cylinder 2 during operation, and reduce the stability and durability of the drum washing machine 100.

[0341] Therefore, in the embodiments of the present application, LA is set to: 418 mm < LA < 422 mm. Along the height direction of the cabinet 1, the outer cylinder 2 does not occupy too much space at the bottom of the cabinet 1, providing sufficient layout space for the arrangement of the waterway components and the circuit components. At the same time, the outer cylinder 2 has a sufficient outer cylinder cavity 22, and the drum 3 has a sufficient washing cavity 32. The clothes can fully tumble, unfold, and rub during the washing process, improving the washing effect and efficiency. In this way, the volume of the outer cylinder cavity 22 can maximize space utilization, avoid space waste, and improve the practicability and user satisfaction of the washing machine.

[0342] In some embodiments of the present application, 419 mm < LA < 421 mm. LA can take a value of 420 mm. On the one hand, it can avoid waste of space, and on the other hand, it does not occupy the space occupied by the arrangement of other components at the bottom of the cabinet 1.

[0343] In some embodiments of the present application, 420 mm < LA < 422 mm. LA can take a value of 421 mm. On the one hand, it can avoid waste of space, and on the other hand, it does not occupy the space occupied by the arrangement of other components at the bottom of the cabinet 1.

[0344] In some embodiments of the present application, 418.5 mm < LA < 419.5 mm. LA can take a value of 419 mm. On the one hand, it can avoid waste of space, and on the other hand, it does not occupy the space occupied by the arrangement of other components at the bottom of the cabinet 1.

[0345] The outer diameter of the outer cylinder 2 is D1. The horizontal distance L1 between the axis points of the rotating shafts of the first adapter 83a and the second adapter 83b satisfies: 0.95 < L1 / D1 < 0.98.

[0346] Conversely, when the ratio of L1 / D1 is less than 0.95, the range of L1 is too small, given that the diameter D1 of the outer cylinder 2 is fixed. Since the bottom ends of the first shock absorber 823 and the second shock absorber 824 are connected to the first adapter 83a and the second adapter 83b respectively, and the top ends of the first shock absorber 823 and the second shock absorber 824 are connected to the first outer cylinder connector 210 and the second outer cylinder connector 220 respectively, with the positions of the first outer cylinder connector 210 and the second outer cylinder connector 220 fixed, when the value range of L1 is too small, the distance between the first adapter 83a and the second adapter 83b is too small, and the distance between the bottom ends of the first shock absorber 823 and the second shock absorber 824 is too small. As a result, the angle between the first shock absorber 823 and the second shock absorber 824 and the horizontal direction becomes larger, which cannot effectively guarantee the effective stroke and angle of the first shock absorber 823. And the small effective stroke of the first shock absorber 823 will affect the shock absorption capacity of the first shock absorber 823.

[0347] Conversely, when the ratio of L1 / D1 is greater than 0.98, with the diameter D1 of the outer cylinder 2 fixed, the range of L1 values ​​is too large. With the positions of the first outer cylinder connector 210 and the second outer cylinder connector 220 fixed, when the range of L1 values ​​is too large, the distance between the first adapter 83a and the second adapter 83b is too large, and the distance between the bottom ends of the first shock absorber 823 and the second shock absorber 824 is too large. This results in a decrease in the angle between the first shock absorber 823 and the second shock absorber 824 and the horizontal direction, leading to an excessively large range of L1 values. With the positions of the first outer cylinder connector 210 and the second outer cylinder connector 220 fixed, when the value range of L1 is too large, the distance between the first adapter 83a and the second adapter 83b is too large, and the distance between the bottom end of the first shock absorber 823 and the bottom end of the second shock absorber 824 is too large. As a result, the angle between the first shock absorber 823 and the second shock absorber 824 and the horizontal direction is reduced, and the effective stroke of the first shock absorber 823 and the second shock absorber 824 is too large, which is not conducive to the effective shock absorption of the front end of the outer cylinder 2 by the first shock absorber 823 and the second shock absorber 824.

[0348] The shock absorber stroke refers to the maximum distance the piston rod travels from fully compressed to fully extended. The effective stroke of the shock absorber 82 refers to the distance it can compress and extend when absorbing shocks and vibrations. An excessively large angle results in a smaller stroke, meaning the compression and extension capabilities of the shock absorber 82 are limited. The angle of the shock absorber 82 refers to its installation angle relative to the horizontal line.

[0349] Therefore, in the embodiments of the present application, the horizontal distance L1 between the center points of the bottom rotation shafts of the first shock absorber 823 and the second shock absorber 824 is set to: 0.95 < L1 / D1 < 0.98, ensuring the effective stroke and installation angle of the first shock absorber 823 and the second shock absorber 824, and meeting the vibration requirements of the entire drum washing machine 100.

[0350] In some embodiments of the present application, 0.95 < L1 / D1 < 0.97, and L1 / D1 can take the value of 0.95. To ensure the effective stroke and installation angle of the first shock absorber 823 and the second shock absorber 824, and meet the vibration requirements of the entire drum washing machine 100.

[0351] In some embodiments of the present application, 0.96 < L1 / D1 < 0.98, and L1 / D1 can take the value of 0.97. To ensure the effective stroke and installation angle of the first shock absorber 823 and the second shock absorber 824, and meet the vibration requirements of the entire drum washing machine 100.

[0352] In some embodiments of the present application, 530 mm < L1 < 560 mm. L1 can take the value of 540 mm.

[0353] In some embodiments of the present application, 530 mm < L1 < 540 mm. L1 can take the value of 535 mm.

[0354] In some embodiments of the present application, 540 mm < L1 < 560 mm. L1 can take the value of 550 mm.

[0355] In some embodiments of the present application, 535 mm < L1 < 555 mm. L1 can take the value of 545 mm.

[0356] In some embodiments of the present application, there is an angle α1 between the first connection line and the first vertical line, and α1 satisfies: 35° < α1 < 39°.

[0357] Refer to Figure 36 As shown, when the angle between the first connection line and the first vertical line is α1, the force Fa1 exerted by the first shock absorber 823 on the outer tub 2 is decomposed along the horizontal direction and the tangential direction of the outer tub. The force decomposed along the horizontal direction of the force Fa1 is F1, and the force decomposed along the vertical direction is F2.

[0358] In the drum washing machine 100, the stability of the outer drum 2 is crucial for its normal operation and for reducing noise and vibration. When the outer drum 2 is in a balanced, stable state, it experiences a stable force in the vertical direction to maintain stability. Therefore, the force applied to the outer drum 2 by the shock absorber 82 in the vertical direction is constant. This means that to achieve vertical stability, the forces applied to the outer drum 2 by the first shock absorber 823 and the second shock absorber 824 in the vertical direction are equal, ensuring that the outer drum 2 does not tilt or move. This force balance helps maintain the centered position of the outer drum 2, thereby avoiding unnecessary vibration or displacement during start-up or shutdown.

[0359] When the angle α1 between the first connecting line and the first vertical line increases, that is, when α1 > 39°, the force applied by the first shock absorber 823 to the outer cylinder 2 is Fa2. The force of Fa2 decomposed in the horizontal direction is F3, and the force decomposed in the vertical direction is F4.

[0360] Since the force on the outer cylinder 2 in the vertical direction is stable, the force exerted by the first shock absorber 823 on the outer cylinder 2 in the vertical direction remains constant. However, when the included angle α1 increases, the force exerted by the first shock absorber 823 on the outer cylinder 2 in the vertical direction remains unchanged. This means that the total force Fa2 exerted by the first shock absorber 823 on the outer cylinder 2 increases because, at a larger angle between the first connecting line and the first vertical line, the proportion of the vertical component in the total force decreases. Therefore, to maintain the same vertical component force, Fa2 is greater than Fa1, and F3 is greater than F1.

[0361] As the angle α1 between the first connecting line and the first vertical line increases, the first shock absorber 823 needs to apply a greater force to reach equilibrium in the outer cylinder 2. This means that the outer cylinder 2 is more difficult to reach equilibrium because a greater force is required to maintain vertical stability. This places higher demands on the first shock absorber 823.

[0362] Reference Figure 36 and Figure 38 As shown, when the angle between the first connecting line and the first vertical line is α1, the force Fa1 is decomposed into force F1 in the horizontal direction and force F2 in the vertical direction. When the angle α1 between the first connecting line and the first vertical line decreases, the force applied to the outer cylinder 2 by the first shock absorber 823 is Fa3. The force Fa3 is decomposed into force F5 in the horizontal direction and force F6 in the vertical direction.

[0363] Since the force on the outer cylinder 2 in the vertical direction is stable, the force exerted by the first shock absorber 823 on the outer cylinder 2 in the vertical direction remains constant. However, when the included angle α1 decreases, the force exerted by the first shock absorber 823 on the outer cylinder 2 in the vertical direction must remain constant. This means that the total force Fa3 exerted by the first shock absorber 823 on the outer cylinder 2 must decrease because, at a smaller angle between the first connecting line and the first vertical line, the proportion of the vertical component in the total force increases. Therefore, to maintain the same vertical component force, Fa3 is less than Fa1, and F5 is less than F1.

[0364] As the angle α1 between the first connecting line and the first vertical line increases, the first shock absorber 823 needs to apply a greater force to reach equilibrium in the outer cylinder 2. This means that the outer cylinder 2 is more difficult to reach equilibrium because a greater force is required to maintain vertical stability. This places higher demands on the first shock absorber 823.

[0365] In other words, when α1 < 35°, the outer cylinder 2 requires a smaller force from the first shock absorber 823 to reach equilibrium. This means the outer cylinder 2 is easier to balance, and the requirements for the first shock absorber 823 to reach equilibrium are reduced. However, the smaller the angle between the first connecting line and the first vertical line, the larger the angle between the bottom to top direction of the first shock absorber 823 and the horizontal direction, resulting in a smaller effective stroke of the first shock absorber 823. This causes the first shock absorber 823 to be unable to effectively dampen the front end of the outer cylinder 2, requiring the replacement of the first shock absorber 823 with a different model, which incurs additional debugging costs.

[0366] The shock absorber stroke refers to the maximum distance the piston rod travels from fully compressed to fully extended. The effective stroke of the shock absorber 82 refers to the distance it can compress and extend when absorbing shocks and vibrations. An excessively large angle results in a smaller stroke, meaning the compression and extension capabilities of the shock absorber 82 are limited. The angle of the shock absorber 82 refers to its installation angle relative to the horizontal line.

[0367] Therefore, in this embodiment, α1 satisfies: 35° < α2 < 39°. When the first shock absorber 823 is arranged, by adjusting the relevant angle α1 between the first shock absorber 823 and the outer drum 2, the force required for the first shock absorber 823 to reach equilibrium is reduced, thereby improving the stability of the outer drum 2. By optimizing the angle setting, the drum washing machine 100 can maintain balance and stability under a wider range of operating conditions, contributing to improved reliability. By reducing the force required for the first shock absorber 823, its workload can be reduced, thereby extending its service life. This reduces the frequency of replacement and maintenance, lowering long-term maintenance costs.

[0368] In some embodiments of this application, the first connecting line and the second connecting line have an included angle α2, where α2 satisfies: 166°<α2<170°.

[0369] Reference Figure 36 As shown, when the angle between the first line and the second line is α2, the force Fa1 applied by the first shock absorber 823 to the outer cylinder 2 is decomposed along the horizontal direction and along the tangent direction of the outer cylinder. The force Fa1 decomposed along the horizontal direction is F1, and the force decomposed along the vertical direction is F2.

[0370] In the drum washing machine 100, the stability of the outer drum 2 is crucial for its normal operation and for reducing noise and vibration. When the outer drum 2 is in a balanced, stable state, it experiences a stable force in the vertical direction to maintain stability. Therefore, the force applied to the outer drum 2 by the shock absorber 82 in the vertical direction is constant. This means that to achieve vertical stability, the forces applied to the outer drum 2 by the first shock absorber 823 and the second shock absorber 824 in the vertical direction are equal, ensuring that the outer drum 2 does not tilt or move. This force balance helps maintain the centered position of the outer drum 2, thereby avoiding unnecessary vibration or displacement during start-up or shutdown.

[0371] When the angle α2 between the first and second connecting lines decreases, that is, when α2 < 166°, the force applied by the first shock absorber 823 to the outer cylinder 2 is Fa2. The force of Fa2 decomposed in the horizontal direction is F3, and the force decomposed in the vertical direction is F4.

[0372] Since the force on the outer cylinder 2 in the vertical direction is stable, the force exerted by the first shock absorber 823 on the outer cylinder 2 in the vertical direction remains constant. However, when the included angle α1 increases, the force exerted by the first shock absorber 823 on the outer cylinder 2 in the vertical direction must remain constant. This means that the total force Fa2 exerted by the first shock absorber 823 on the outer cylinder 2 must increase, because at a larger angle between the first connecting line and the first vertical line, the proportion of the vertical component in the total force decreases. Therefore, to maintain the same vertical component force, Fa2 is greater than Fa1, and F3 is greater than F1.

[0373] When the angle α2 between the first and second connecting lines decreases, the outer cylinder 2 requires the first shock absorber 823 to apply a greater force to reach equilibrium. This means that the outer cylinder 2 is more difficult to reach equilibrium because a greater force is needed to maintain vertical stability. This places higher demands on the first shock absorber 823.

[0374] Reference Figure 36 and Figure 38As shown, when the angle between the first and second lines is α2, the force Fa1 is decomposed into force F1 in the horizontal direction and force F2 in the vertical direction. When the angle α2 between the first and second lines increases, the force applied to the outer cylinder 2 by the first shock absorber 823 is Fa3. The force Fa3 is decomposed into force F5 in the horizontal direction and force F6 in the vertical direction.

[0375] Since the force on the outer cylinder 2 in the vertical direction is stable, the force exerted by the first shock absorber 823 on the outer cylinder 2 in the vertical direction remains constant. However, when the included angle α2 increases, the force exerted by the first shock absorber 823 on the outer cylinder 2 in the vertical direction must remain constant. This means that the total force Fa3 exerted by the first shock absorber 823 on the outer cylinder 2 must decrease because, at a smaller angle between the first connecting line and the first vertical line, the proportion of the vertical component in the total force increases. Therefore, to maintain the same vertical component force, Fa3 is less than Fa1, and F5 is less than F1.

[0376] In other words, when α2 > 170°, the outer cylinder 2 requires a smaller force from the first shock absorber 823 to reach equilibrium. This means that the outer cylinder 2 is easier to balance, and the requirements for the first shock absorber 823 to reach equilibrium are reduced. However, the smaller the angle between the first connecting line and the first vertical line, the larger the angle between the bottom to top direction of the first shock absorber 823 and the horizontal direction, resulting in a smaller effective stroke of the first shock absorber 823. This causes the first shock absorber 823 to be unable to effectively dampen the front end of the outer cylinder 2, which requires replacing it with a different model of the first shock absorber 823, resulting in additional debugging costs.

[0377] The shock absorber stroke refers to the maximum distance the piston rod travels from fully compressed to fully extended. The effective stroke of the shock absorber 82 refers to the distance it can compress and extend when absorbing shocks and vibrations. An excessively large angle results in a smaller stroke, meaning the compression and extension capabilities of the shock absorber 82 are limited. The angle of the shock absorber 82 refers to its installation angle relative to the horizontal line.

[0378] Therefore, in this embodiment, α2 satisfies: 166° < α2 < 170°. When the first shock absorber 823 is arranged, adjusting α2 reduces the force required for the first shock absorber 823 to reach equilibrium, thereby improving the stability of the outer drum 2. By optimizing the angle setting, the drum washing machine 100 can maintain balance and stability under a wider range of operating conditions, contributing to improved reliability. By reducing the force required for the first shock absorber 823, its workload can be reduced, thus extending its service life. This reduces the frequency of replacement and maintenance, lowering long-term maintenance costs. In some embodiments of this application, 35° < α1 < 38°. α1 can be 36.5°.

[0379] In some embodiments of this application, 37° < α1 < 39°. α1 can be 37.5°.

[0380] In some embodiments of this application, 36° < α1 < 38°. α1 can be 37°.

[0381] In some embodiments of this application, 166° < α2 < 169°. α2 can be 167°.

[0382] In some embodiments of this application, 168° < α2 < 170°. α2 can be 169°.

[0383] In some embodiments of this application, 167° < α2 < 169°. α2 can be 168°.

[0384] In some embodiments of this application, the third connecting line and the first vertical line have an included angle α3, where α3 satisfies: 35° < α3 < 39°. In some embodiments of this application, the third connecting line and the fourth connecting line have an included angle α4, where α4 satisfies: 166° < α4 < 170°.

[0385] It is understandable that, since the first shock absorber 823 and the second shock absorber 824 are symmetrically distributed on opposite sides of the front end of the outer cylinder 2, the function of the second shock absorber 824 is the same as that of the first shock absorber 823. Therefore, the setting of the relevant parameters α3 and α4 of the second shock absorber 824 is consistent with the principle of the relevant parameters α1 and α2 of the first shock absorber 823, so it will not be elaborated here.

[0386] In some embodiments of this application, 35° < α3 < 38°. α3 can be 36.5°.

[0387] In some embodiments of this application, 37° < α3 < 39°. α3 can be 37.5°.

[0388] In some embodiments of this application, 36° < α3 < 38°. α3 can be 37°.

[0389] In some embodiments of this application, 166° < α4 < 169°. α4 can be 167°.

[0390] In some embodiments of this application, 168° < α4 < 170°. α4 can be 169°.

[0391] In some embodiments of this application, 167° < α4 < 169°. α4 can be 168°.

[0392] In some embodiments of this application, reference is made to Figures 39 to 43As shown, the shock absorber 82 also includes a third shock absorber 825 and a fourth shock absorber 826. Along the axial direction of the outer cylinder 2, the top end of the third shock absorber 825 and the top end of the fourth shock absorber 826 are both connected to the outer cylinder 2 closer to the rear side than the front side.

[0393] The third shock absorber 825 is located on the left side inside the housing 1, and the fourth shock absorber 826 is located on the right side inside the housing 1. Both the third and fourth shock absorbers 825 and 826 are located within the placement space 12 of the housing 1, with the third shock absorber 825 positioned closer to the left side of the placement space 12, and the fourth shock absorber 826 positioned closer to the right side of the placement space 12.

[0394] The bottom end of the third shock absorber 825 is closer to the left side than the top end of the third shock absorber 825, and the bottom end of the fourth shock absorber 826 is closer to the right side than the top end of the fourth shock absorber 826.

[0395] The adapter 83 includes a third adapter 83c and a fourth adapter 83d. The third adapter 83c and the fourth adapter 83d are located near the rear end of the outer cylinder 2.

[0396] The third adapter 83c is located near the left side of the enclosure. The fourth adapter 83d is located near the right side of the enclosure. The third adapter 83c and the fourth adapter 83d are arranged symmetrically.

[0397] The outer cylinder connector 200 includes a third outer cylinder connector 230 and a fourth outer cylinder connector 240.

[0398] The third outer cylinder connector 230 is located on the left side of the rear end of the outer cylinder 2, and the fourth outer cylinder connector 240 is located on the right side of the rear end of the outer cylinder 2. The third outer cylinder connector 230 and the fourth outer cylinder connector 240 are arranged symmetrically at the rear end of the outer cylinder.

[0399] The third outer cylinder connector 230 is located on the outer wall of the outer cylinder 2.

[0400] The fourth outer cylinder connector 240 is located on the outer wall of the outer cylinder 2.

[0401] The top end of the third shock absorber 825 is connected to the third outer cylinder connector 230, and the bottom end of the third shock absorber 825 is rotatably connected to the inner bottom wall of the housing 1 through the third adapter 83c.

[0402] Along the axial direction of the outer cylinder, the top end of the third shock absorber 825 is connected to the position of the third outer cylinder connector 230, which is closer to the rear side than the front side; the bottom end of the third shock absorber 825 is closer to the left side than the top end of the third shock absorber 825.

[0403] The top end of the fourth shock absorber 826 is connected to the fourth outer cylinder connector 240, and the bottom end of the fourth shock absorber 826 is rotatably connected to the inner bottom wall of the housing 1 via the fourth adapter 83d. Along the axial direction of the outer cylinder, the position where the top end of the fourth shock absorber 826 is connected to the fourth outer cylinder connector 240 is closer to the rear side than the front side; the bottom end of the fourth shock absorber 826 is closer to the right side than the top end of the fourth shock absorber 826.

[0404] Reference Figures 39 to 43 As shown: The center of the rotation axis of the third adapter 83c is defined as the axis center point E of the rotation axis of the third adapter 83c. That is, on the cross section perpendicular to the rotation axis of the third adapter 83c and passing through the central axis of the third shock absorber 825, the projection point of the rotation axis of the third adapter 83c is E.

[0405] The top of the third shock absorber 825 and the center point of the third outer cylinder connector 230 are defined as the third connection center point G. That is, on the cross section that is perpendicular to the rotation axis of the third outer cylinder connector 230 and passes through the central axis of the third shock absorber 825, the projection point of the rotation axis of the third outer cylinder connector 230 is G.

[0406] The top of the fourth shock absorber 826 and the center point of the fourth outer cylinder connector 240 are defined as the fourth connection center point M. That is, on the cross section that is perpendicular to the rotation axis of the fourth outer cylinder connector 240 and passes through the central axis of the fourth shock absorber 826, the projection point of the rotation axis of the fourth outer cylinder connector 240 is M.

[0407] The center of the rotation axis of the fourth adapter 83d is defined as the axis center point N of the rotation axis of the fourth adapter 83d. That is, on the cross section that is perpendicular to the rotation axis of the fourth adapter 83d and passes through the central axis of the fourth shock absorber 826, the projection point of the rotation axis of the fourth adapter 83d is N.

[0408] The outer cylinder 2 has a radial cross-section, which passes through the third connection center point G. The axis of the outer cylinder 2 on the radial cross-section is defined as the second outer cylinder axis O2. That is, the axis of the outer cylinder 2 on the radial cross-section passing through the third connection center point G is defined as the second outer cylinder axis O2.

[0409] There is a second bottom connection between the axis center point E of the rotating shaft of the third adapter 83c and the axis center point N of the rotating shaft of the fourth adapter 83d.

[0410] The perpendicular line passing through the axis O2 of the second outer cylinder and perpendicular to the line connecting the second bottom end is defined as the second vertical line.

[0411] The distance between the center point E of the rotating shaft of the third adapter 83c and the center point N of the rotating shaft of the fourth adapter 83d is L3.

[0412] The line connecting the third connecting center point G and the second outer cylinder axis O2 is defined as the fifth connecting line.

[0413] The line connecting the third connection center point G and the axis center point E of the rotating shaft of the third adapter 83c is defined as the sixth connection line.

[0414] The angle between the fifth and sixth lines at the center point G of the third connection is α6.

[0415] The fifth line and the second vertical line form an angle α5.

[0416] The line connecting the fourth connection center point M and the second outer cylinder axis O2 is defined as the seventh connection line.

[0417] The line connecting the fourth connection center point M and the axis center point N of the fourth adapter 83d rotation shaft is defined as the eighth connection line.

[0418] The angle between the seventh and eighth lines at the center point M of the fourth connection is α8.

[0419] The seventh line and the second vertical line form an angle α7.

[0420] The vertical distance from the second outer cylinder axis O2 to the second bottom end is LB.

[0421] Roller 3 has a radial section, which passes through the third connecting center point G. The vertical distance from the third connecting center point G to the second bottom end on the radial section of roller 3 is Lb.

[0422] The distance between the third connection center point G and the fourth connection center point M is defined as L4.

[0423] In the drum washing machine 100, a dispensing port 111 is provided on the front panel 11, and a door seal 41 is disposed between the dispensing port 111 and the opening 21 of the outer drum 2. Thus, the outer drum 2 and the front panel 11 are restricted by the dispensing port 111 and the door seal 41, resulting in a small gap between the outer drum 2 and the front panel 11 of the casing 1. The outer drum 2 has a rear end, which is close to the rear side. The gap between the rear end of the outer drum 2 and the rear panel is larger, resulting in fewer restrictive structures.

[0424] Due to fewer restrictions, the impact noise and impact damage at the rear end of the outer cylinder are relatively smaller than those at the front end. Since the front end of the outer cylinder 2 is restricted by the door seal 41 and the delivery port 111, the swaying at the front end of the outer cylinder 2 needs to be smaller than that at the rear end to reduce impact noise and impact damage.

[0425] The gap between the outer drum 2 and the drum 3 of a large-diameter washing machine is smaller than that of a traditional washing machine. Under the same shock absorption conditions, i.e., when the front and rear shock absorber angles are the same, the front end of the drum 3 is farther from the motor's rotating shaft than the rear end. Therefore, during motor operation, the front end of the drum 3 experiences greater deformation due to vibration, making it more prone to collision with the outer drum. Conversely, the rear end of the drum 3 is closer to the motor's rotating shaft than the front end. Therefore, during motor operation, the rear end of the drum 3 experiences less deformation due to vibration, making it less likely to collide with the outer drum 2. Thus, during motor rotation, the front end of the drum 3 is more susceptible to collision damage than the rear end.

[0426] Since high energy of matter always actively transfers to the same low energy matter, and low energy matter can only passively absorb the same high energy, when designing the shock absorption system, the shock absorption effect of the front end of the outer cylinder 2 should be stronger than that of the rear end of the outer cylinder. This is so that during the operation of the motor, the energy generated by the vibration of the drum 3 and the outer cylinder 2 can be transferred to the position near the rear end of the drum 3 and the rear end of the outer cylinder 2, thereby limiting the collision damage caused by the outer cylinder 2 and the drum 3.

[0427] It is understandable that at the front end of the outer cylinder 2, the first shock absorber 823 and the second shock absorber 824 have the same function, and at the rear end of the outer cylinder 2, the third shock absorber 825 and the fourth shock absorber 826 have the same function.

[0428] For ease of subsequent description, the force analysis of the outer cylinder 2 will be conducted using the first damper 823 and the third damper 825 as examples. The process by which the second damper 824 applies force to the outer cylinder 2 is similar to the process by which the first damper 823 applies force to the outer cylinder 2. The process by which the third damper 825 applies force to the outer cylinder 2 is similar to the process by which the fourth damper 826 applies force to the outer cylinder 2, and therefore will not be elaborated upon here.

[0429] In some embodiments of this application, α6 < α2.

[0430] In some embodiments of this application, α8 < α4.

[0431] In the embodiments of this application, α5 and α1 satisfy α1 < α5. α6 and α2 satisfy α6 < α2. (Refer to...) Figure 36 and Figure 41 As shown, when the angle between the first connection and the first vertical line is α1 and the angle between the first connection and the second connection is α2, the force Fa applied by the first shock absorber 823 to the front end of the outer cylinder 2 is decomposed in the horizontal direction and in the vertical direction. The force Fa1 is decomposed into force F1 in the horizontal direction and force F2 in the vertical direction.

[0432] When the angle between the fifth line and the second vertical line is α5, and at the same time the angle between the fifth line and the sixth line is α6, the force Fb1 applied by the third shock absorber 825 to the rear end of the outer cylinder 2 is decomposed in the horizontal and vertical directions. The force Fb1 decomposed in the horizontal direction is F11, and the force decomposed in the vertical direction is F12.

[0433] In the drum washing machine 100, the stability of the outer drum 2 is crucial for the normal operation of the drum washing machine 100 and for reducing noise and vibration. In the drum washing machine 100, when the outer drum 2 is in a balanced state, i.e., a stable state, the outer drum 2 bears a stable force in the vertical direction to achieve stability. Therefore, the force applied to the outer drum 2 by the shock absorber 82 in the vertical direction is constant.

[0434] In this embodiment, the shock absorber 82 includes a first shock absorber 823, a second shock absorber 824, a third shock absorber 825, and a fourth shock absorber 826. This means that in order to achieve vertical stability of the outer cylinder 2, the first shock absorber 823, the second shock absorber 824, the third shock absorber 825, and the fourth shock absorber 826 apply equal forces to the outer cylinder 2 in the vertical direction.

[0435] Reference Figure 36 and Figure 41 The force F2 applied by the first shock absorber 823 to the front end of the outer drum 2 in the vertical direction is equal to the force F12 applied by the third shock absorber 825 to the rear end of the outer drum in the vertical direction, so as to maintain the balance of the drum washing machine.

[0436] In the design of the drum washing machine 100, the vibration amplitude at the front end of the outer drum 2 is lower than that at the rear end. This is because the support structure of the outer drum 2 differs between the front and rear ends. The front end houses the door seal structure and must withstand the opening and closing of the washing machine door and other operations, requiring a more robust design. The rear end, connected to the drive system, involves rotation and power transmission, and thus has more space to move, reducing the probability of collisions.

[0437] In this way, during the use of the drum washing machine 100, the drum 3 is rolling and rotating. The drum 3 transfers some energy from the front to the back through rotation, which relatively reduces the vibration energy and vibration amplitude of the front end of the outer drum 2, thereby reducing the noise generated at the front end of the outer drum 2 and avoiding noise affecting the user.

[0438] Since the force on the outer cylinder 2 in the vertical direction is stable, the forces exerted on the outer cylinder 2 by the first shock absorber 823 and the third shock absorber 825 in the vertical direction are equal. That is, F2 equals F12.

[0439] Considering the impact of vibration amplitudes at the front and rear ends of outer cylinder 2, the front end of outer cylinder 2 needs to be more stable. That is, the force applied to the front end of outer cylinder 2 by the first damper 823 is less than the force applied to the rear end of outer cylinder 2 by the third damper 825. Specifically, Fa1 < Fb1. Thus, the force required for the front end of outer cylinder 2 to reach equilibrium is less than the force required for the rear end of outer cylinder 2 to reach equilibrium. Therefore, the front end of outer cylinder 2 is more stable than the rear end.

[0440] Therefore, the force Fb1 applied by the third shock absorber 825 to the rear end of the outer cylinder 2 is greater than the force Fa1 applied by the first shock absorber 823 to the front end of the outer cylinder 2. The angle α5 between the fifth line and the second vertical line is greater than the angle α1 between the first line and the first vertical line, and the angle α6 between the fifth line and the sixth line is less than the angle α2 between the first line and the second line. That is, α1 < α5, or α6 < α2.

[0441] Correspondingly, the horizontal component of Fb1, F11, is greater than the horizontal component of Fa1, F1. Therefore, the third shock absorber 825 needs to apply a larger force to reach equilibrium at the rear end of the outer drum 2, while the first shock absorber 823 needs to apply a smaller force to reach equilibrium at the front end. This means that the front end of the outer drum 2 is easier to balance and has greater stability. Compared to the front end, the rear end of the outer drum 2 is less likely to reach equilibrium and has poorer stability. Thus, during the operation of the drum washing machine, the vibration energy generated at the front end of the outer drum 2 is transferred from the front to the rear end, reducing the noise generated by the vibration at the front end.

[0442] Conversely, this applies when α5 and α1 satisfy α1 > α5, or when α6 and α2 satisfy α6 > α2. (See reference...) Figure 37 and Figure 43 As shown, the force Fb3 applied by the third shock absorber 825 to the rear end of the outer cylinder 2 is decomposed in the horizontal and vertical directions. The force Fb3 is decomposed into force F15 in the horizontal direction and force F16 in the vertical direction.

[0443] Since the force on the outer cylinder 2 in the vertical direction is stable, the force exerted on the outer cylinder 2 by the first shock absorber 823 in the vertical direction is equal to the external force exerted on the outer cylinder 2 by the third shock absorber 825 in the vertical direction. That is to say, the vertical component of Fa1, F2, is equal to the vertical component of Fb3, F16.

[0444] When α1 > α5, the force Fb3 applied by the third shock absorber 825 to the rear end of the outer drum 2 is less than the force applied by the first shock absorber 823 to the front end of the outer drum 2, i.e., Fb3 < Fa1, F15 < F1. In other words, when α1 > α5 or α6 > α2, the force applied by the first shock absorber 823 to the front end of the outer drum 2 is greater, and the force applied by the third shock absorber 825 to the rear end of the outer drum 2 is smaller. The rear end of the outer drum 2 is easier to balance than the front end. Therefore, the vibration amplitude of the front end of the outer drum 2 is greater than that of the rear end. The front end of the outer drum 2 will collide with the door seal 41, causing mechanical damage and damaging the drum washing machine 100, reducing its performance and customer satisfaction.

[0445] Therefore, in this embodiment, α5 and α1 satisfy α1 < α5; or α6 and α2 satisfy α6 < α2. Thus, according to the theory of the path of least resistance, vibration energy always tends to be transmitted along the path of least resistance. In the aforementioned drum washing machine 100, since the force exerted on the front end of the outer drum 2 by the first shock absorber 823 is less than the force exerted on the rear end of the outer drum 2 by the third shock absorber 825, the front end of the outer drum 2 is more likely to reach a balanced state than the rear end. During the use of the drum washing machine 100, vibration energy is transmitted from the front end of the outer drum 2 towards the rear end, achieving a uniform distribution of shock absorption force around the outer drum 2 and reducing the instability of the outer drum 2 during use.

[0446] In the drum washing machine 100 provided in this application embodiment, the vibration damping force on the front end of the outer drum 2 is large, and the vibration energy is small, which further reduces the noise and mechanical stress generated at the end of the outer drum 2 near the front plate 11. Because the gap at the rear end of the outer drum 2 is large and the restraining structure is few, although the vibration margin is large, the impact noise and damage are relatively small due to the lack of restraint.

[0447] By controlling the values ​​of α1 and α5, and α2 and α6, the vibration energy of the outer drum 2 is effectively controlled, improving the operational stability of the washing machine. Effective vibration energy distribution and control reduce wear on mechanical parts and extend the service life of the washing machine.

[0448] It is understandable that, since the third shock absorber 825 and the fourth shock absorber 826 are symmetrically distributed on opposite sides of the rear end of the outer cylinder 2, and the function of the fourth shock absorber 826 is the same as that of the third shock absorber 825, the setting of the relevant parameters α7 and α8 of the fourth shock absorber 826 is consistent with the principle of the relevant parameters α5 and α6 of the third shock absorber 825, so it will not be elaborated here.

[0449] In some embodiments of this application, the drum washing machine 100 includes a drive motor. The rotating shaft of the drum passes through the rear end of the outer drum 2 and is connected to the output shaft of the drive motor. The rotation of the drum is fundamental for the washing machine to perform functions such as washing, rinsing, and spin-drying. The drive motor is connected to the rotating shaft of the drum through its output shaft, directly driving the drum to rotate. Through the rotation of the drum, the clothes continuously tumble and rub in the washing liquid, thereby achieving a cleaning effect.

[0450] In some embodiments of this application, the shock absorber includes a third shock absorber 825 and a fourth shock absorber 826. Along the axial direction of the outer cylinder 2, the top ends of the third shock absorber 825 and the fourth shock absorber 826 are connected to the outer cylinder 2 at a position closer to the rear side than the front side. Thus, by placing the third shock absorber 825 and the fourth shock absorber 826 near the rear side of the outer cylinder 2, the third shock absorber 825 and the fourth shock absorber 826 can evenly disperse and absorb the vibrations and impacts generated at the rear end of the outer cylinder 2, ensuring that the outer cylinder 2 remains stable during operation.

[0451] The third shock absorber 825 is located on the left side inside the housing 1, and the fourth shock absorber 826 is located on the right side inside the housing 1. Thus, the third shock absorber 825 and the fourth shock absorber 826 are arranged symmetrically near the rear end of the outer cylinder 2. When the structure at the rear end of the outer cylinder 2 is symmetrical, the forces acting on it will also be symmetrical. By symmetrically arranging the third shock absorber 825 and the fourth shock absorber 826 near the rear side of the outer cylinder 2, the vibrations and impacts generated at the rear end of the outer cylinder 2 during operation will be distributed to the third shock absorber 825 and the fourth shock absorber 826, preventing any single shock absorber from bearing excessive force, reducing imbalance and offset, and improving stability and shock absorption effect.

[0452] The bottom end of the third shock absorber 825 is closer to the left side than the top end of the third shock absorber 825. In this way, the third shock absorber 825 is set at an angle. The angled third shock absorber 825 can provide support and cushioning for the outer cylinder 2 in multiple directions, enhance the stability of the rear end of the outer cylinder 2, and reduce the impact of vibration and impact on the rear end of the outer cylinder 2.

[0453] The top end of the third shock absorber 825 is connected to the third outer cylinder connector 230 of the outer cylinder 2. By directly connecting the top end of the third shock absorber 825 to the third outer cylinder connector 230, the third outer cylinder connector 230 provides a stable support point for the connection of the third shock absorber 825, which helps to directly transmit the vibration and impact of the outer cylinder 2 to the third shock absorber 825.

[0454] The bottom end of the third shock absorber 825 is rotatably connected to the inner bottom wall of the housing 1 through the third adapter 83c, so that the third shock absorber 825 can move and adjust freely in multiple directions, reducing various vibrations and impacts generated at the rear end of the outer cylinder 2 during operation.

[0455] The bottom end of the fourth shock absorber 826 is closer to the right side surface than the top end of the fourth shock absorber 826. In this way, the fourth shock absorber 826 is inclined. The inclined fourth shock absorber 826 can provide support and buffering for the outer cylinder 2 in multiple directions, enhancing the stability of the rear end of the outer cylinder 2 and reducing the influence of vibration and impact on the rear end of the outer cylinder 2.

[0456] The top end of the fourth shock absorber 826 is connected to the fourth outer cylinder connecting member 240 of the outer cylinder 2. By directly connecting the top end of the fourth shock absorber 826 to the fourth outer cylinder connecting member 240, the fourth outer cylinder connecting member 240 provides a stable support point for the connection of the fourth shock absorber 826, which helps the vibration and impact of the outer cylinder 2 to be directly transmitted to the fourth shock absorber 826.

[0457] The bottom end of the fourth shock absorber 826 is rotationally connected to the inner bottom wall of the box body 1 through a fourth adapter 83d, so that the fourth shock absorber 826 can freely move and adjust in multiple directions, reducing various vibrations and impacts generated during the operation of the outer cylinder 2.

[0458] Exemplarily, the third outer cylinder connecting member 230 can be a connecting plate. The fourth outer cylinder connecting member 240 can be a connecting plate.

[0459] The outer cylinder 2 has a rear end, and the rear end is close to the rear side surface. The vertical distance between the second outer cylinder axis and the line connecting the second bottom end is LB, and LB satisfies: 418mm < LB < 422mm. In the drum washing machine 100, the appearance parameters of the box body 1, the length, width and height dimensions of the box body 1 are often common dimensions in the industry, but the diameter of the outer cylinder 2 can vary. Increasing the diameter of the outer cylinder 2 can significantly increase the size of the outer cylinder cavity 22, and further increase the washing cavity 32 capacity of the drum 3, so that the clothes can fully tumble and unfold between them.

[0460] Relatively, when LB > 422mm, along the height direction of the box body 1, the outer cylinder 2 occupies the space at the bottom of the box body 1, and this space may need to arrange control circuit components and water circuit components, which will lead to insufficient layout space for the water circuit components and circuit components, affecting the overall function and performance of the washing machine. At the same time, when LB > 422mm, it also means that the diameter of the outer cylinder 2 is relatively large, and along the width direction of the box body 1, too large diameter of the outer cylinder 2 will cause the appearance parameters of the box body 1 to exceed the common dimensions in the industry, affecting the installation and use of the drum washing machine 100.

[0461] In contrast, when LB < 418 mm, along the height direction of the cabinet 1, the outer drum 2 does not occupy too much space at the bottom of the cabinet. The waterway components and the circuit components are arranged in this space. At the same time, this space has sufficient volume, which leads to insufficient volume of the outer drum cavity 22 of the outer drum 2, and the interval for the clothes to tumble, unfold, and rub is reduced, resulting in a waste of space utilization. At the same time, when LB < 418 mm, it also means that the diameter of the outer drum 2 is relatively small. Along the width direction of the cabinet 1, there are gaps between the outer drum 2 and the first side plate and the second side plate of the cabinet 1. The existence of these gaps may reduce the installation stability of the outer drum 2, increase the shaking and displacement of the outer drum 2 during operation, and reduce the durability of the drum washing machine 100.

[0462] Therefore, in the embodiment of the present application, the vertical distance LB from the second outer end axis to the second bottom end connection line is set to: 418 mm < LB < 422 mm. Along the height direction of the cabinet 1, the outer drum 2 does not occupy too much space between the rear inner bottom wall and the second bottom end, providing sufficient layout space for the arrangement of the waterway components and the circuit components. At the same time, ensure that the outer drum 2 has sufficient outer drum cavity 22, so that the clothes can fully tumble, unfold, and rub during the washing process, improving the washing effect and efficiency.

[0463] The volume of the outer drum cavity 22 can maximize the space utilization, avoid space waste, and improve the practicality and user satisfaction of the washing machine.

[0464] In some embodiments of the present application, 419 mm < LB < 421 mm. LB can take the value of 420 mm. On the one hand, it can avoid waste of space, and on the other hand, it does not occupy the space occupied by the arrangement of other components at the bottom of the cabinet 1.

[0465] In some embodiments of the present application, 420 mm < LB < 422 mm. LB can take the value of 421 mm. On the one hand, it can avoid waste of space, and on the other hand, it does not occupy the space occupied by the arrangement of other components at the bottom of the cabinet 1.

[0466] In some embodiments of the present application, 418.5 mm < LB < 419.5 mm. LB can take the value of 419 mm. On the one hand, it can avoid waste of space, and on the other hand, it does not occupy the space occupied by the arrangement of other components at the bottom of the cabinet 1.

[0467] The outer diameter of the outer drum 2 is D1, and the distance L3 between the axis center point of the rotation axis of the third adapter 83c and the axis center point of the rotation axis of the fourth adapter 83d and D1 satisfy: 0.95 < L3 / D1 < 0.98.

[0468] When the ratio of L3 / D1 is less than 0.95, based on the fixed value of the diameter D1 of the outer cylinder 2, the value range of L3 is too small. Since the bottoms of the third shock absorber 825 and the fourth shock absorber 826 are respectively connected to the third adapter 83c and the fourth adapter 83d, and the tops of the third shock absorber 825 and the fourth shock absorber 826 are respectively connected to the third outer cylinder connector 230 and the fourth outer cylinder connector 240, based on the fixed positions of the third outer cylinder connector 230 and the fourth outer cylinder connector 240, when the value range of L3 is too small, the distance between the third adapter 83c and the fourth adapter 83d is too small, and the distance between the bottom ends of the third shock absorber 825 and the fourth shock absorber 826 is too small. In this way, the angles between the third shock absorber 825 and the fourth shock absorber 826 and the horizontal direction become larger, and the effective stroke and the angle of the shock absorber cannot be effectively guaranteed. And too small effective stroke of the shock absorber will affect the shock absorption ability of the shock absorber.

[0469] When the ratio of L3 / D1 is greater than 0.98, based on the fixed value of the diameter D1 of the outer cylinder 2, the value range of L3 is too large. Based on the fixed positions of the third outer cylinder connector 230 and the fourth outer cylinder connector 240, when the value range of L3 is too large, the distance between the third adapter 83c and the fourth adapter 83d is too large, and the distance between the bottom ends of the third shock absorber 825 and the fourth shock absorber 826 is too large. In this way, the angles between the third shock absorber 825 and the fourth shock absorber 826 and the horizontal direction decrease, the effective strokes of the third shock absorber 825 and the fourth shock absorber 826 are too large, and the angles of the shock absorbers are too small, which is not conducive to the third shock absorber 825 and the fourth shock absorber 826 effectively damping the rear end of the outer cylinder 2.

[0470] Therefore, in the embodiments of the present application, the horizontal distance L3 between the center points of the bottom rotation shafts of the third shock absorber 825 and the bottom rotation shaft of the fourth shock absorber 826 is set to: 0.95 < L3 / D1 < 0.98, to ensure the effective stroke and installation angles of the third shock absorber 825 and the fourth shock absorber 826, and meet the vibration requirements of the whole drum washing machine 100.

[0471] In some embodiments of the present application, 0.95 < L3 / D1 < 0.97, and L3 / D1 can take the value of 0.95. To ensure the effective stroke and installation angles of the third shock absorber 825 and the fourth shock absorber 826, and meet the vibration requirements of the whole drum washing machine 100.

[0472] In some embodiments of the present application, 0.96 < L3 / D1 < 0.98, and L3 / D1 can take the value of 0.97. To ensure the effective stroke and installation angles of the third shock absorber 825 and the fourth shock absorber 826, and meet the vibration requirements of the whole drum washing machine 100.

[0473] In some embodiments of the present application, 530mm < L3 < 560mm. L3 can take the value of 540mm.

[0474] In some embodiments of the present application, 530mm < L3 < 540mm. L3 can take the value of 535mm.

[0475] In some embodiments of the present application, 540mm < L3 < 560mm. L3 can take the value of 550mm.

[0476] In some embodiments of the present application, 535mm < L3 < 555mm. L3 can take the value of 545mm.

[0477] Exemplarily, there is a distance B between the bottom end of the inner wall of the left side surface and the bottom end of the inner wall of the right side surface, and D1 and B satisfy: 0.92 < D1 / B < 0.99.

[0478] When D1 / B is greater than 0.99, the diameter of the outer cylinder 2 is relatively large, and the outer cylinder 2 will rub against the front and rear side surfaces of the box body, reducing the service life of the box body and the outer cylinder. At the same time, if the diameter of the outer cylinder 2 is too large, the appearance parameters of the box body 1 will exceed the fixed value, affecting the installation and use of the drum washing machine 100.

[0479] When D1 / B is less than 0.92, this will result in insufficient volume of the outer cylinder cavity 22 of the outer cylinder 2, reducing the interval for the clothes to tumble, unfold, and rub, causing waste in space utilization.

[0480] Therefore, in the embodiments of the present application, D1 and B satisfy: 0.92 < D1 / B < 0.99, avoiding friction and collision between the outer cylinder 2 and the front and rear side surfaces of the box body. At the same time, ensuring that the outer cylinder 2 has a sufficient outer cylinder cavity 22, so that the clothes can fully tumble, unfold, and rub during the washing process, improving the washing effect and efficiency. In this way, the volume of the outer cylinder cavity 22 can maximize space utilization, avoid space waste, and improve the practicality and user satisfaction of the washing machine.

[0481] In some embodiments of the present application, 0.92 < D1 / B < 0.95. The value of D1 / B can be 0.93.

[0482] In some embodiments of the present application, 0.95 < D1 / B < 0.99. The value of D1 / B can be 0.96.

[0483] In some embodiments of the present application, 0.95 < D1 / B < 0.98. The value of D1 / B can be 0.95.

[0484] In some embodiments of this application, the top of the third shock absorber 825 and the center point of the outer cylinder connector 200 and the axis of the outer cylinder 2 are connected by a fifth line, and there is an angle α5 between the fifth line and the second vertical line, where α5 satisfies 39° < α5 < 43°.

[0485] In some embodiments of this application, the fifth line and the sixth line have an included angle α6, where α6 satisfies 156°<α6<160°.

[0486] When the angle α5 between the fifth line and the second vertical line is greater than 43°, the angle between the fifth line and the sixth line is determined based on the unchanged positions of the third shock absorber 825 and the second outer cylinder axis O2. The angle α6 between the fifth line and the sixth line is less than 156°.

[0487] Reference Figure 41 As shown, when the angle between the fifth connecting line and the second vertical line is α5, the force Fb1 applied to the outer cylinder 2 by the third shock absorber 825 is decomposed in the horizontal and vertical directions. The force Fb1 decomposed in the horizontal direction is F11, and the force decomposed in the vertical direction is F12. When α5 increases, that is, when α5 > 43°, refer to Figure 42 As shown, the force Fb2 applied by the third shock absorber 825 to the rear end of the outer cylinder 2 is decomposed horizontally and vertically. The force Fb2 decomposed horizontally is F13, and the force decomposed vertically is F14. Since the force on the outer cylinder 2 in the vertical direction is stable, the force applied by the third shock absorber 825 to the outer cylinder 2 in the vertical direction remains unchanged. Therefore, F14 equals F12. However, when the included angle α5 increases, the force applied by the third shock absorber 825 to the outer cylinder 2 in the vertical direction must remain constant. This means that the total force Fb2 applied by the third shock absorber 825 to the outer cylinder 2 must increase because the proportion of the vertical component to the total force decreases at a larger angle between the fifth line and the second vertical line. Therefore, to maintain the same vertical component, Fb2 is greater than Fb1, and F13 is greater than F11.

[0488] Reference Figure 41 As shown, when the angle between the fifth and sixth lines is α6, the force Fb1 applied to the outer cylinder 2 by the third shock absorber 825 is decomposed horizontally and vertically. The force Fb1 decomposed horizontally is F11, and the force decomposed vertically is F12. When α6 decreases, i.e., when α6 < 156°, refer to... Figure 42As shown, the force Fb2 applied by the third shock absorber 825 to the rear end of the outer cylinder 2 is decomposed horizontally and vertically. The force Fb2 decomposed horizontally is F13, and the force decomposed vertically is F14. Since the force on the outer cylinder 2 in the vertical direction is stable, the force applied by the third shock absorber 825 to the outer cylinder 2 in the vertical direction remains unchanged. Therefore, F14 equals F12. However, when the included angle α6 decreases, the force applied by the third shock absorber 825 to the outer cylinder 2 in the vertical direction must remain constant. This means that the total force Fb2 applied by the third shock absorber 825 to the outer cylinder 2 must increase because, at a larger angle between the fifth line and the second vertical line, the proportion of the vertical component in the total force decreases. Therefore, to maintain the same vertical component force, Fb2 is greater than Fb1, and F13 is greater than F11.

[0489] When the angle α5 between the fifth line and the second vertical line increases, the outer cylinder 2 requires the third shock absorber 825 to apply a greater force to reach equilibrium. This means that the outer cylinder 2 is not easy to reach equilibrium, and the requirements for the third shock absorber 825 to reach equilibrium are higher.

[0490] When the angle α6 between the fifth and sixth lines decreases, the outer cylinder 2 requires the third shock absorber 825 to apply a greater force to reach equilibrium. This means that the outer cylinder 2 is not easy to reach equilibrium, and the requirements for the third shock absorber 825 to reach equilibrium are higher.

[0491] When the angle α5 between the fifth line and the second vertical line increases, i.e., when α5 > 43°, the outer cylinder 2 requires the third shock absorber 825 to apply a greater force to reach equilibrium. This means that the outer cylinder 2 is more difficult to balance because it requires a greater force to maintain vertical stability. This places higher demands on the third shock absorber 825. The rear end of the outer cylinder 2 is also less likely to reach equilibrium.

[0492] When the angle α6 between the fifth and sixth lines decreases, i.e., when α6 < 156°, the outer cylinder 2 requires the third damper 825 to apply a greater force to reach equilibrium. This means that the outer cylinder 2 is more difficult to balance because a greater force is needed to maintain vertical stability. This places higher demands on the third damper 825. The rear end of the outer cylinder 2 is also less likely to reach equilibrium.

[0493] Reference Figure 41 As shown, when the angle between the fifth line and the second vertical line is α5, and the angle between the fifth line and the sixth line is α6, the force Fb1 applied to the outer cylinder 2 by the third shock absorber 825 is decomposed horizontally and vertically. The force Fb1 decomposed horizontally is F11, and the force decomposed vertically is F12. (Refer to...) Figure 43As shown, when α6 increases and α5 decreases, the force applied to the outer cylinder 2 by the third shock absorber 825 is Fb3. The force of Fb3 decomposed in the horizontal direction is F15, and the force decomposed in the vertical direction is F16.

[0494] Since the force on the outer cylinder 2 in the vertical direction is stable, the force exerted by the third damper 825 on the outer cylinder 2 in the vertical direction remains constant. However, when the included angle α5 decreases, the force exerted by the third damper 825 on the outer cylinder 2 in the vertical direction must remain constant. This means that the total force Fb3 exerted by the third damper 825 on the outer cylinder 2 must decrease because, at a smaller angle between the fifth line and the second vertical line, the proportion of the vertical component in the total force increases. Therefore, to maintain the same vertical force component, Fb3 must be less than Fb1, and F15 must be less than F11.

[0495] When the angle α5 between the fifth connecting line and the second vertical line decreases, i.e., α5 < 39°, the outer cylinder 2 requires less force from the third shock absorber 825 to reach equilibrium. This means that the outer cylinder 2 is easier to balance, and the requirements for the third shock absorber 825 to reach equilibrium are reduced. However, the smaller the angle α5, the larger the angle between the bottom to top direction of the third shock absorber 825 and the horizontal direction, resulting in a smaller effective stroke of the third shock absorber 825. This causes the third shock absorber 825 to be unable to effectively dampen the rear end of the outer cylinder 2, which requires replacing it with a different model of third shock absorber 825, resulting in additional debugging costs.

[0496] When the angle between the fifth and sixth connecting lines α6 increases, i.e., α6 > 160°, the outer cylinder 2 requires less force from the third shock absorber 825 to reach equilibrium. This means the outer cylinder 2 is easier to balance, and the requirements for the third shock absorber 825 to reach equilibrium are reduced. However, the larger the angle α6, the larger the angle between the bottom to top of the third shock absorber 825 and the horizontal direction, resulting in a smaller effective stroke of the third shock absorber 825. This causes the third shock absorber 825 to be unable to effectively dampen the rear end of the outer cylinder 2, necessitating the replacement with a different model of the third shock absorber 825, which incurs additional debugging costs.

[0497] The shock absorber stroke refers to the maximum distance the piston rod travels from fully compressed to fully extended. The effective stroke of a shock absorber refers to the distance it can compress and extend when absorbing shocks and vibrations. An excessively large angle results in a smaller stroke, meaning the shock absorber's compression and extension capabilities are limited. The shock absorber angle refers to its installation angle relative to the horizontal line.

[0498] Therefore, in this embodiment, α5 satisfies: 39° < α5 < 43°. Or α2 satisfies: 156° < α6 < 160°. By adjusting the relevant angles α5 and α6 between the third shock absorber 825 and the outer drum 2, the force required for the third shock absorber 825 to reach equilibrium is reduced. By optimizing the angle settings, the drum washing machine can maintain balance and stability under a wider range of operating conditions, which helps improve the reliability of the drum washing machine. By reducing the force required for the third shock absorber 825 to be applied, its workload can be reduced, thereby extending the service life of the third shock absorber 825. This reduces the frequency of replacement and maintenance, and lowers long-term maintenance costs.

[0499] In some embodiments of this application, 39° < α5 < 41°. α5 can be 40°.

[0500] In some embodiments of this application, 40° < α5 < 43°. α5 can be 45°.

[0501] In some embodiments of this application, 40.5° < α5 < 41.5°. α5 can be 41°.

[0502] In some embodiments of this application, 156° < α6 < 159°. α6 can be 157°.

[0503] In some embodiments of this application, 158° < α6 < 160°. α6 can be 159°.

[0504] In some embodiments of this application, 157° < α6 < 159°. α6 can be 158°.

[0505] In some embodiments of this application, the seventh connecting line and the second vertical line have an included angle α7, where α7 satisfies 39° < α7 < 43°.

[0506] In some embodiments of this application, the seventh line and the eighth line have an included angle α8, where α8 satisfies 156°<α8<160°.

[0507] It is understandable that, since the third shock absorber 825 and the fourth shock absorber 826 are symmetrically distributed on opposite sides of the rear end of the outer cylinder 2, and the function of the fourth shock absorber 826 is the same as that of the third shock absorber 825, the setting of the relevant parameters α7 and α8 of the fourth shock absorber 826 is consistent with the principle of the relevant parameters α5 and α6 of the first shock absorber 823, so it will not be elaborated here.

[0508] In some embodiments of this application, 39° < α7 < 41°. α7 can be 40°.

[0509] In some embodiments of this application, 40° < α7 < 43°. α7 can be 45°.

[0510] In some embodiments of this application, 40.5° < α7 < 41.5°. α7 can be 41°.

[0511] In some embodiments of this application, 156° < α8 < 159°. α8 can be 157°.

[0512] In some embodiments of this application, 158° < α8 < 160°. α8 can be 159°.

[0513] In some embodiments of this application, 157° < α8 < 159°. α8 can be 158°.

[0514] The outer cylinder 2 has a rear end, which is closer to the rear side than the front end. The vertical distance from the axis of the rear end to the line connecting the second bottom end is LB. LA and LB satisfy: LA=LB.

[0515] In this way, the vertical distance between the axis of the front end of the outer drum 2 and the line connecting the first bottom end is equal to the vertical distance between the axis of the rear end of the outer drum 2 and the line connecting the second bottom end. The front and rear ends of the outer drum 2 of the drum washing machine 100 are symmetrically distributed, which helps to evenly distribute vibration energy, reduce unbalanced vibration, and improve the overall stability of the drum washing machine 100.

[0516] In some embodiments of this application, La and Lb satisfy: La < Lb.

[0517] For example, in designing the vibration damping system, the damping effect at the front end of the outer cylinder 2 is stronger than that at the rear end, so that during motor operation, the energy generated by the vibration of the roller 3 and the outer cylinder 2 can be transferred to the rear end of the roller 3 and the rear end of the outer cylinder 2, thereby limiting the collision hazards caused by the outer cylinder 2 and the roller 3. By setting La to be less than Lb, the included angle α2 between the first and second lines is greater than the included angle α6 between the fifth and sixth lines. The included angle α4 between the third and fourth lines is greater than the included angle α8 between the seventh and eighth lines. To achieve balance at the front end of the outer drum 2, the force applied by the first shock absorber 823 and the second shock absorber 824 must be less than the force applied by the third shock absorber 825 and the fourth shock absorber 826 at the rear end of the outer drum 2. The front end of the outer drum 2 is more likely to achieve balance, and its shock absorption effect is stronger than that at the rear end. This allows the energy generated by the vibration of the drum 3 and the outer drum 2 to be transferred to the rear ends of the drum 3 and the outer drum 2, thus limiting the collision hazards between the outer drum 2 and the drum 3. Conversely, when La > Lb, the force applied by the first shock absorber 823 and the second shock absorber 824 to achieve balance at the front end of the outer drum 2 is greater than the force applied by the third shock absorber 825 and the fourth shock absorber 826 at the rear end of the outer drum 2. The front end of the outer drum 2 is less likely to achieve balance, resulting in greater swaying and direct noise transmission to the user, which is detrimental to reducing noise generated during the operation of the drum washing machine 100.

[0518] Therefore, in this embodiment, La and Lb satisfy: La < Lb. This improves the damping effect of the first shock absorber 823 and the second shock absorber 824 on the front end of the outer drum 2, reducing the noise generated by the drum washing machine 100. At the same time, the vibration energy at the front end of the outer drum 2 is more easily transmitted to the rear end of the outer drum 2, further improving the damping effect of the drum washing machine 100.

[0519] In some embodiments of this application, 134mm < La < 138mm, and La can be 135mm.

[0520] In some embodiments of this application, 135mm < La < 137mm, and La can be 136mm.

[0521] In some embodiments of this application, 139mm < Lb < 143mm, and Lb can be 140mm.

[0522] In some embodiments of this application, 140mm < Lb < 142mm, and Lb can be 141mm.

[0523] In some embodiments of this application, L1, L2, L3 and L4 satisfy: L1=L3, L4>L2.

[0524] The bottom spacing between the first shock absorber 823 and the second shock absorber 824 is equal to the bottom spacing between the third shock absorber 825 and the fourth shock absorber 826. In this way, ensuring that the bottom spacings of the first shock absorber 823, the second shock absorber 824, the third shock absorber 825, and the fourth shock absorber 826 are equal helps to maintain the symmetry and stability of the drum washing machine 100. This symmetry can evenly distribute the vibration energy and reduce the unbalanced vibration.

[0525] The top spacing between the third shock absorber 825 and the fourth shock absorber 826 is greater than the top spacing between the first shock absorber 823 and the second shock absorber 824. The rear shock absorber arrangement occupies a larger space.

[0526] The larger top spacing (L4 > L2) enables the third shock absorber 825 and the fourth shock absorber 826 to cover a larger area, thereby more effectively absorbing and attenuating the vibration energy and enhancing the shock absorption effect at the rear end.

[0527] In the embodiment of the present application, L2 satisfies: 365 mm < L2 < 369 mm.

[0528] In some embodiments of the present application, 365 mm < L2 < 367 mm, and L2 can take the value of 366 mm.

[0529] In some embodiments of the present application, 367 mm < L2 < 369 mm, and L2 can take the value of 368 mm.

[0530] In some embodiments of the present application, 366 mm < L2 < 368 mm, and L2 can take the value of 367.5 mm.

[0531] In the embodiment of the present application, 309 mm < L4 < 403 mm.

[0532] In some embodiments of the present application, 309 mm < L4 < 401 mm, and L4 can take the value of 400 mm.

[0533] In some embodiments of the present application, 401 mm < L4 < 403 mm, and L4 can take the value of 402 mm.

[0534] In some embodiments of the present application, 310 mm < L4 < 401 mm, and L4 can take the value of 350 mm.

[0535] Compared with the drum washing machine in the related art, a drum washing machine 100 includes two shock absorbers 82. Both of the two shock absorbers 82 are located at the front end of the outer tub 2 of the drum washing machine 100. The included angle between the first connection line and the vertical line is 37.9°, and the included angle between the first connection line and the second connection line is 167.3°.

[0536] In this drum washing machine 100, the shock absorbers 82 are concentrated at the front end of the outer tub, resulting in stress concentration at the front end, while the rear end lacks sufficient shock absorption support. This uneven stress distribution may cause deformation or damage to the outer tub 2 and the drum 3. This uneven shock absorption arrangement may cause resonance of vibrations at certain frequencies at the rear end, further exacerbating the vibration and noise problems.

[0537] In another drum washing machine 100, the shock absorbers 82 are located at the left front side and the left rear side of the outer tub 2. When at the left front side, the angle between the first connecting line and the vertical line is 37.6°, and the angle between the first connecting line and the second connecting line is 162.4°; when at the left rear side, the angle between the fifth connecting line and the vertical line is 34°, and the angle between the first connecting line and the second connecting line is 171°. In this drum washing machine 100, the shock absorbers 2 are concentrated on the left side, and the vibration and impact forces are absorbed on the left side, while the right side may bear more stress and impact, increasing the risk of wear and damage to the components on the right side. Therefore, the existing drum washing machines have problems with poor performance.

[0538] In the drum washing machine 100 provided by the embodiment of the present application, by connecting the top end of the shock absorber to the outer tub connector 200, and the bottom end is connected to the inner wall surface of the cabinet 1 through the adapter 83, and the bottom end is rotatably connected to the adapter 83, the connection strength between the shock absorber and the outer tub 被截断,无法翻译,原文可能有误,请检查。2 is improved, ensuring that the shock absorber can effectively absorb and disperse vibration energy during operation, and improving the durability and reliability of the drum washing machine 100. By symmetrically arranging the first shock absorber 823 and the second shock absorber 824 at the front end of the outer tub 2, the first shock absorber 823 and the second shock absorber are respectively located on the left side and the right side inside the cabinet 1. This symmetrical arrangement helps to evenly distribute the vibration energy, reduce unbalanced vibrations, and improve the stability and smooth operation of the washing machine.

[0539] By setting LA as: 418 mm < LA < 422 mm, in the height direction of the cabinet 1, the outer tub 2 will not occupy too much space at the bottom of the cabinet, providing sufficient space for the arrangement of waterway components and circuit components.

[0540] Meanwhile, ensure that the outer tub 2 has a sufficient outer tub cavity 22, so that the clothes can fully tumble, unfold and rub during the washing process, improving the washing effect and efficiency. In this way, the volume of the outer tub cavity 22 can maximize the space utilization, avoid space waste, and improve the practicality and user satisfaction of the washing machine. By setting L1 as: 0.95 < L1 / D1 < 0.98, ensure the effective stroke and installation angle of the first shock absorber 823 and the second shock absorber 824, meeting the vibration requirements of the entire drum washing machine 100.

[0541] By setting the angle α1 between the first connecting line and the first vertical line within a preset range, where α1 satisfies: 35° < α1 < 39°. By setting the angle α3 between the third connecting line and the first vertical line, where α3 satisfies: 35° < α3 < 39°. By adjusting the relevant angle α1 between the first shock absorber 823 and the outer drum 2, and adjusting the relevant angle α3 between the second shock absorber 824 and the outer drum 2, the force required by the first shock absorber 823 and the second shock absorber 824 to reach a balanced state of the outer drum 2 is reduced. By optimizing the angle settings, the drum washing machine can maintain balance and stability under a wider range of operating conditions, which helps to improve the reliability of the drum washing machine.

[0542] By setting the included angle α2 between the first and second connecting lines within a preset range, where α2 satisfies: 166° < α2 < 170°. Similarly, by setting the included angle α4 between the third and fourth connecting lines within a preset range, where α4 satisfies: 166° < α4 < 170°. By adjusting the relevant angle α2 between the first shock absorber 823 and the outer cylinder 2, and adjusting the relevant angle α4 between the second shock absorber 824 and the outer cylinder 2, the force required by the first shock absorber 823 and the second shock absorber 824 to reach equilibrium of the outer cylinder 2 is reduced. Reducing the force required by the shock absorber 82 decreases its workload, thereby extending its service life. This reduces the frequency of replacement and maintenance, lowering long-term maintenance costs.

[0543] In some embodiments of this application, reference is made to Figures 1 to 5 The reinforcing member 81 can be installed inside the housing 1. The reinforcing member 81 can be connected to the housing. The reinforcing member 81 can be located below the outer cylinder 2. The reinforcing member 81 can be installed along the front-rear direction of the housing.

[0544] The reinforcing member 81 may include at least a first reinforcing member 8101. In the width direction of the housing, the first reinforcing member 811 may be located on one side of the roller rotation shaft. The first reinforcing member may be arranged along the front-rear direction of the housing.

[0545] The reinforcing member 81 may include at least a second reinforcing member 8102. The second reinforcing member may be located on one side of the roller rotation shaft in the width direction of the housing. The second reinforcing member may be arranged along the front-rear direction of the housing.

[0546] The first and second reinforcing members can be arranged opposite to each other. In the width direction of the housing, the first and second reinforcing members can be located on opposite sides of the roller rotation axis.

[0547] In some embodiments of this application, the shock absorbers may have at least one pair.

[0548] A shock absorber can have one pair. A shock absorber can have two pairs.

[0549] In some embodiments of the present application, the adapter 83 may be provided on the reinforcing member 81. The adapter 83 may be connected to the reinforcing member 81.

[0550] There may be at least one pair of adapters. The number of adapters may be equal to the number of shock absorbers. The two adapters in a pair may be respectively connected to the first reinforcing member and the second reinforcing member.

[0551] In some embodiments of the present application, refer to Figure 6 , a first connection hole 8321 of the adapter may be provided on the adapter. A first connection hole 821 of the shock absorber may be provided at the bottom end of the shock absorber.

[0552] The drum washing machine 100 may include a first fixing member 841. The first fixing member 841 may be inserted into the first connection hole of the adapter and the first connection hole of the shock absorber to connect the shock absorber and the adapter.

[0553] In some embodiments of the present application, refer to Figure 7 , the outer diameter of the outer tub may be a first diameter D1.

[0554] The first parameter value < D1. The first parameter value may be 550 mm or 555 mm or 560 mm. Setting the outer diameter of the outer tub to be greater than the first parameter value makes the outer diameter of the outer tub large enough, so that the outer tub is a large-diameter outer tub, which is convenient for setting a large-diameter drum and meets the user's demand for a large washing cavity.

[0555] D1 < the second parameter value. The second parameter value may be 570 mm or 575 mm or 580 mm. Setting the outer diameter of the outer tub to be less than the second parameter value controls the outer diameter of the outer tub within a certain range, avoiding the outer tub having too large a diameter and causing the cabinet to be too large, and meeting the user's need that the overall size of the washing machine is not too large.

[0556] In some embodiments of the present application, refer to Figure 7 , the central axes of the first connection holes of the two adapters in a pair are respectively the first central axis and the second central axis. The distance between the first central axis and the second central axis is a first distance L1.

[0557] The third parameter value < L1. The third parameter value may be 530 mm or 535 mm or 540 mm. Setting the distance between the first central axis and the second central axis to be greater than the third parameter value provides sufficient installation space for the shock absorber, ensures the stroke and angle of the shock absorber, and avoids the shock absorber having too small a stroke and affecting its shock absorption ability.

[0558] L1 < the fourth parameter value. The fourth parameter value can be 550mm, 555mm, or 560mm. Setting the distance between the first and second central axes to be less than the fourth parameter value ensures that the shock absorber stroke is not too large and the shock absorber angle is not too small, thus avoiding excessive shock absorber stroke affecting the strength and damping capacity of the shock absorber.

[0559] Setting the first diameter of the outer drum makes it a large-diameter outer drum, meeting the user's need for a large washing capacity; setting an adapter to connect the reinforcing component and the shock absorber can enhance the support strength of the bottom of the shock absorber, meet the support strength of the large-diameter outer drum, improve stability, and avoid unstable connection at the bottom of the shock absorber; setting the distance L1 between the first and second central axes can ensure the movement stroke and installation angle of the shock absorber, meeting the vibration requirements of the entire washing machine.

[0560] In some embodiments of this application, reference is made to Figures 8 to 10 The adapter 83 may include an adapter base plate 831.

[0561] The adapter 83 may include an adapter stand 832. The adapter stand 832 may be disposed above the adapter base plate. The bottom end of the adapter stand may be connected to the adapter base plate.

[0562] There can be two adapter plates. The two adapter plates can be arranged opposite each other. The two adapter plates can be provided with first connecting holes for the adapter. The first connecting holes for the adapter can penetrate through the adapter plate in the thickness direction. The bottom end of the shock absorber can be located between the two adapter plates.

[0563] The adapter base plate and adapter upright plate are designed to facilitate the installation of the first connection hole for the adapter, making it easy to connect the shock absorber and the adapter.

[0564] In some embodiments of this application, the adapter plate can be arranged along the width direction of the housing. In the width direction of the housing, the first connecting hole of the adapter can be located on the side of the adapter plate away from the rotating shaft of the roller, which facilitates extending the installation length of the shock absorber.

[0565] In some embodiments of this application, reference is made to Figures 8-10 The reinforcing component can be snapped into the adapter, facilitating the connection between the adapter and the component.

[0566] The reinforcing member may be provided with a first snap-fit ​​structure 811. The adapter may include a second snap-fit ​​structure 833.

[0567] The second snap-fit ​​structure can be connected to the adapter base plate. The second snap-fit ​​structure can be located below the adapter base plate. The second snap-fit ​​structure can snap into the first snap-fit ​​structure.

[0568] The number of second snap-fit ​​structures can be equal to the number of first snap-fit ​​structures. There can be at least one first snap-fit ​​structure. There can be at least two first snap-fit ​​structures.

[0569] The first snap-fit ​​structure can have four. The second snap-fit ​​structure can have four. The first snap-fit ​​structure can be arranged in a matrix. The second snap-fit ​​structure can be arranged in a matrix.

[0570] Of the first and second snap-fit ​​structures, one can be a snap-fit ​​hole and the other can be a snap-fit ​​claw.

[0571] The first locking structure can be a locking hole. The second locking structure can be a locking claw.

[0572] In some embodiments of this application, reference is made to Figures 8-10 The base plate of the adapter can be provided with a first connection structure 8311 for connecting with the reinforcing member, which can effectively solve the problem that when the whole machine vibrates at high speed, the vibration of the outer cylinder is transmitted to the adapter through the shock absorber, which in turn causes abnormal noise between the adapter and the reinforcing member.

[0573] In the front-rear direction of the housing, the first connecting structure can be located between the two transition plates.

[0574] The first connecting structure can be a second connecting hole for the adapter. The second connecting hole can penetrate the adapter base plate in the thickness direction. The second connecting hole can also penetrate the adapter base plate vertically.

[0575] The first connection structure may have at least one.

[0576] In some embodiments of this application, reference is made to Figures 8-10 The reinforcing member may be provided with a first connecting hole 812.

[0577] The drum washing machine may include a third fixing member. The third fixing member is inserted into the first connecting hole of the first connecting structure and the reinforcing member to connect the adapter base plate and the reinforcing member.

[0578] The number of first connecting holes in the reinforcing member is equal to the number of first connecting structures.

[0579] The first connecting hole of the reinforcing member is set in the vertical direction.

[0580] In some embodiments of this application, in the width direction of the housing, the first connecting structure may be located at the center of the adapter base plate on the side near the roller rotation axis.

[0581] In some embodiments of this application, reference is made to Figures 8-10The base plate of the adapter can be provided with a second connection structure 8312 for connecting with the reinforcement, which further reduces the vibration of the outer cylinder transmitted to the adapter through the shock absorber, thereby reducing the abnormal noise caused by the gap between the adapter and the reinforcement.

[0582] In the width direction of the housing, the second connecting structure can be located on the side of the first connecting structure away from the roller rotation axis.

[0583] In some embodiments of this application, reference is made to Figures 8-10 The second connection structure can be a third connection hole for the adapter. This third connection hole can penetrate the adapter base plate in the thickness direction. The top end of the third connection hole extends into the adapter upright plate, facilitating its installation.

[0584] The third connecting hole of the adapter can be set in the vertical direction.

[0585] In some embodiments of this application, reference is made to Figures 8-10 The reinforcing member may be provided with a second connecting hole 813.

[0586] The drum washing machine may include a fourth fixing member. The fourth fixing member is inserted into the second connecting hole of the second connecting structure and the reinforcing member to connect the adapter base plate and the reinforcing member.

[0587] The number of second connecting holes in the reinforcing member is equal to the number of second connecting structures.

[0588] The second connecting hole of the reinforcing member is set in the vertical direction.

[0589] In some embodiments of this application, reference is made to Figures 8-10 The two transition plates can be a first transition plate and a second transition plate. The second transition plate can be located behind the first transition plate.

[0590] In some embodiments of this application, reference is made to Figures 8-10 The adapter may have at least two third connection holes. At least one adapter third connection hole extends into the first adapter plate.

[0591] In some embodiments of this application, an outer cylinder connecting plate 27 may be provided on the outer wall of the outer cylinder. The outer cylinder connecting plate 23 is provided with an outer cylinder connecting hole 271.

[0592] The top of the shock absorber is provided with a second connection hole 822.

[0593] The drum washing machine also includes a second fastener 842. The second fastener 842 is inserted into the outer drum connecting hole and the shock absorber second connecting hole to connect the outer drum connecting plate and the shock absorber.

[0594] In some embodiments of this application, the outer cylinder connecting plates may have at least two pairs. The number of outer cylinder connecting plates may be equal to the number of shock absorbers.

[0595] The top of the shock absorber can be located between two outer cylinder connecting plates. The outer cylinder connecting holes can be set along the front-to-back direction of the housing.

[0596] Setting the first diameter of the outer drum makes it a large-diameter outer drum, meeting the user's need for a large washing capacity; setting an adapter to connect the reinforcing component and the shock absorber can enhance the support strength of the bottom of the shock absorber, meet the support strength of the large-diameter outer drum, improve stability, and avoid unstable connection at the bottom of the shock absorber; setting the distance L1 between the first and second central axes can ensure the movement stroke and installation angle of the shock absorber, meeting the vibration requirements of the entire washing machine.

[0597] In some embodiments of this application, the first fastener can be snapped into the adapter plate.

[0598] In some embodiments of this application, the second fastener can be snapped into the outer cylinder connecting plate.

[0599] In some embodiments of this application, reference is made to Figure 11 and Figure 12 The outer cylinder 2 may include an outer cylinder rear wall 23. The outer cylinder rear wall 23 may be located at the rear end of the outer cylinder 2. A return air vent 231 may be formed on the inner wall surface of the outer cylinder rear wall.

[0600] refer to Figure 12 An air outlet duct 261 can be formed inside the outer cylinder. The air outlet duct 261 can be connected to the outer cylinder cavity through a return air inlet.

[0601] An air outlet 262 can be formed on the outer wall surface of the outer cylinder.

[0602] In some embodiments of this application, the return air vent may be located at one end of the outlet air duct. The outlet air vent may be located at the other end of the outlet air duct. The return air vent and the outlet air vent are located at opposite ends of the outlet air duct. The outlet air vent may be located at the top of the outlet air duct.

[0603] In some embodiments of this application, the rear wall of the outer cylinder may protrude outward to form an air outlet space. The top of the air outlet space may have a top opening to form an air outlet duct. The top opening of the air outlet space may be an air outlet.

[0604] In some embodiments of this application, reference is made to Figure 13 The drum washing machine 100 may include a washing component 63. The washing component may be connected to the outer drum and may be located at the air outlet. An airflow duct 6311 may be formed within the washing component 63. The airflow duct may communicate with the air outlet duct.

[0605] In some embodiments of this application, the drum washing machine 100 may include a drying module.

[0606] refer to Figure 13 The drying module may include an air duct housing 50. The air duct housing 50 may be located outside the outer cylinder. The air duct housing may be connected to the rinsing components.

[0607] A drying air duct 51 can be formed inside the air duct housing. One end of the drying air duct can be connected to the flow air duct. The other end of the drying air duct can be connected to the washing chamber.

[0608] In some embodiments of this application, one end of the drying duct 51 can be connected to the air outlet via a flow duct. The other end of the drying duct can be connected to the washing chamber.

[0609] In some embodiments of this application, to maximize the drying effect, the drying duct can be made longer, and the air circulation path can be longer. The port of the drying duct 51 furthest from the return air inlet can be inserted into the door seal. Air in the drying duct 51 passes through the air seal and the drum opening into the drum. The air outlet is located on the side of the outer drum and at the rear end.

[0610] In some embodiments of this application, a drying device is provided in the drying duct, which is capable of drying the air entering the drying duct.

[0611] During drying, the air inside the drum exchanges heat with the clothes to form humid air. The humid air enters the outer drum and then enters the drying air duct through the return air inlet. The humid air is dried in the return air duct to form dry air. The dry air flows into the washing drum through the other end of the drying air duct to exchange heat with the clothes and dry them.

[0612] In some embodiments of this application, the drying apparatus may include a heating element.

[0613] In some embodiments of this application, reference is made to Figure 14 and Figure 15 A drying fan 852 can be installed inside the drying duct. The drying fan provides power for the airflow within the drying duct. The drying fan can be installed inside the drying duct.

[0614] During the drying process, drum washing machines continuously accumulate lint. Lint typically accumulates in the drying duct, on the drying unit, on the drying fan, and at the return air vent. After prolonged use, lint can clog the duct and affect drying efficiency.

[0615] Generally, a flushing structure fixed to the outer cylinder is added to flush the return air vent or the drying fan. However, it is difficult to flush the drying duct and the drying device inside the drying duct. As a result, the existing flushing structure has a single function and cannot solve the problem of lint accumulation in other complex locations, deep in the drying duct, and on the drying device.

[0616] refer to Figure 16 and Figure 17 A flushing chamber 6312 may be formed within the flushing member 63. A flushing port may be formed on the flushing chamber. The flushing port may communicate with the flushing chamber.

[0617] In some embodiments of this application, reference is made to Figure 16 and Figure 17 The rinsing port may include a second rinsing port 6321. The second rinsing port 6321 may communicate with the rinsing chamber. The second rinsing port may face the drying air duct.

[0618] In some embodiments of this application, the drum washing machine may include a water inlet valve. The water inlet valve is used to control the inflow and outflow of water into the rinsing chamber.

[0619] Open the water inlet valve to allow water to spray from the second flushing port. Close the water inlet valve to stop the water spraying from the second flushing port.

[0620] The rotation of the drying fan draws water sprayed from the second flushing port into the drying duct to flush the drying fan and the duct itself. This flushes or shakes off lint from the drying duct, the drying devices within it, and the drying fan, preventing lint buildup from affecting the airflow and temperature, and thus ensuring optimal drying performance.

[0621] In some embodiments of this application, reference is made to Figures 16 to 17 The drying fan can be located on the side of the rinsing component away from the outer cylinder. The drying fan can be positioned opposite the rinsing component. The second rinsing port can face the drying fan.

[0622] In some embodiments of this application, the drying fan may include a drying fan. The drying fan may include a drying motor. The drying fan may be an impeller.

[0623] In some embodiments of this application, the drum washing machine may include a controller.

[0624] In some embodiments of this application, reference is made to Figure 18 The controller is configured as follows:

[0625] Upon receiving the drying duct flushing signal, the drying fan is controlled to rotate, and the water inlet valve is controlled to open and close alternately. The water inlet valve opens and closes alternately for at least two cycles. Within one cycle, the water inlet valve is open for a first preset time and closed for a second preset time.

[0626] By setting up a drying fan, a second flushing port on the flushing component, and a water inlet valve, the drying fan rotates to create negative pressure, drawing water into the drying duct to clean the drying duct, its components, and the drying fan itself. The drying fan can disperse the water, allowing for comprehensive cleaning. Upon receiving a flushing signal for the drying duct, the drying fan is controlled to rotate continuously, and the water inlet valve is controlled to open and close periodically. This ensures that the flushing time is sufficient for powerful lint removal, facilitates lint flow, and conserves water resources.

[0627] In some embodiments of this application, the first parameter value is less than or equal to a first preset time. The first parameter value can be 11s, 10s, or 9s. This avoids the first preset time being too short, which would affect the rinsing effect.

[0628] The first preset time should be less than or equal to the second parameter value. The second parameter value can be 13s, 14s, or 15s. This is to avoid the first preset time being too large, which would result in an excessively long rinsing time and an overall excessively long washing time.

[0629] The third parameter value must be less than or equal to the second preset time. The third parameter value can be 2s, 1.5s, or 1s. This avoids the second preset time being too short, which would result in a short rinsing interval, thus preventing lint from flowing down with the water and ensuring a good rinsing effect. It also avoids continuous water intake, thereby saving resources.

[0630] The second preset time should be less than or equal to the fourth parameter value. The fourth parameter value can be 3.5s, 4s, or 4.5s. This is to avoid the second preset time being too large, which would result in an excessively long rinsing interval, and to avoid the rinsing interval occupying too large a proportion of the cycle time, thus affecting the rinsing effect.

[0631] In some embodiments of this application, reference is made to Figure 19 The controller is configured as follows:

[0632] Upon receiving the drying duct flushing signal, the inlet valve is opened. After the inlet valve has been open for a third preset time, the drying fan is turned. After the drying fan has been turned for a fourth preset time, the inlet valve is closed, and the drying fan has been turned for a fifth preset time.

[0633] By setting up a second flushing port and a water inlet valve on the drying fan and flushing components, the drying fan rotates to create negative pressure, drawing water into the drying duct to clean the duct, its components, and the fan itself. The drying fan disperses the water, ensuring thorough cleaning. Upon receiving a flushing signal for the drying duct, the water inlet valve operates independently for a third preset time before the drying fan restarts, allowing the water sprayed during this time to wet the lint. A fourth preset time is set for simultaneous operation of the water inlet valve and the drying fan, enabling flushing and lint removal. A fifth preset time is set for the drying fan to operate independently, allowing it to centrifugally eject some lint for further cleaning.

[0634] In some embodiments of this application, the value of the fifth parameter is less than or equal to the third preset time. The value of the fifth parameter can be 9s, 8s, or 7s. This is to avoid the third preset time being too short, which would affect the wetting effect.

[0635] The third preset time should be less than or equal to the sixth parameter value. The sixth parameter value can be 11s, 12s, or 13s. This is to avoid the third preset time being too large, which would result in an excessively long soaking time, increasing the overall rinsing time, and to avoid wasting water.

[0636] In some embodiments of this application, the value of the seventh parameter is less than or equal to the fourth preset time. The value of the seventh parameter can be 9s, 8s, or 7s. This is to avoid the fourth preset time being too short, which would affect the rinsing effect.

[0637] The fourth preset time should be less than or equal to the eighth parameter value. The eighth parameter value can be 11s, 12s, or 13s. This is to avoid the fourth preset time being too large, which would increase the overall rinsing time and waste water.

[0638] In some embodiments of this application, the value of the ninth parameter is less than or equal to the fifth preset time. The value of the ninth parameter can be 9s, 8s, or 7s. This avoids the fifth preset time being too short, which would result in too little time for the lint to be flung out, thus affecting the lint flung out effect.

[0639] The fifth preset time should be less than or equal to the tenth parameter value. The tenth parameter value can be 11s, 12s, or 13s. This is to avoid the fifth preset time being too large, which would result in too much time for lint to be shaken out, thus increasing the overall rinsing time.

[0640] In some embodiments of this application, reference is made to Figure 19 The controller is configured as follows:

[0641] After the drying fan has been running for five preset times, the water inlet valve will open again, and the drying fan will run simultaneously with the opening of the water inlet valve for a sixth preset time.

[0642] Setting the drying fan and water inlet valve to work simultaneously again can rinse away the lint thrown out by the drying fan, improving the cleanliness of accumulated lint.

[0643] In some embodiments of this application, the eleventh parameter value is less than or equal to the sixth preset time. The eleventh parameter value can be 9s, 8s, or 7s. This avoids the sixth preset time being too short, which would result in insufficient lint rinsing time and affect the lint rinsing effect.

[0644] The sixth preset time should be less than or equal to the twelfth parameter value. The twelfth parameter value can be 11s, 12s, or 13s. This is to avoid the sixth preset time being too large, which would result in an excessively long lint cleaning time and increase the overall rinsing time.

[0645] In some embodiments of this application, when processing the lint in the drying duct, the drying fan rotates at a high speed, which allows the drying fan to draw water sprayed from the second rinsing port into the drying duct, and to shake off the lint on the drying fan, as well as to blow off the lint attached to the drying duct, making it easy to clean the lint.

[0646] In some embodiments of this application, the drying duct can be flushed after the washing stage of the drum washing machine and before the rinsing stage.

[0647] In some embodiments of this application, the drying duct can be flushed after the rinsing stage of the drum washing machine and between the spin-drying stage.

[0648] In some embodiments of this application, the second flushing port 6321 may be located within the flow duct. The second flushing port can connect the flushing chamber and the flow duct.

[0649] In some embodiments of this application, the humid air is dried only through the drying duct, which results in poor drying effect. Therefore, a condenser can be installed on the rear side of the outer cylinder rear wall to condense the humid air before or when it enters the drying duct, thereby cooling and dehumidifying the humid air.

[0650] However, existing condensers are generally located at the rear of the outer cylinder wall. The condenser has low heat exchange efficiency with the humid air and poor dehumidification effect, making it difficult to dry the humid air and resulting in a longer drying time for clothes. Furthermore, the drying process generates a lot of lint in the air. During airflow, the air easily carries lint into the drying duct, causing lint to adhere to the inner surface of the drying duct and the surface of the drying device. Over time, this accumulation affects the unobstructed flow of the drying duct and the heat exchange between the drying device and the air, further extending the drying time. A filter can be installed at the return air vent, but lint will accumulate on the filter, causing blockage and affecting the return airflow and the normal filtration of the filter.

[0651] refer to Figure 20 and Figure 21 A drum washing machine may include a condenser tray 52. ​​The condenser tray 52 may be disposed inside the outer drum 2. The condenser tray may be connected to the rear wall 23 of the outer drum. The condenser tray can be used to exchange heat with humid air during drying, so that the moisture in the humid air condenses.

[0652] refer to Figure 20 and Figure 21 The condenser tray 52 may include a shielding area 521. The shielding area 521 may shield the return air vent 231.

[0653] The return air vent 231 can be located on the upper part of the rear wall of the outer cylinder. The location of the shielding area 521 can be adapted to the location of the return air vent.

[0654] refer to Figures 20 to 21 A filter section 5211 may be formed on the shielded area 521. The filter section 5211 can connect the return air vent 231 and the space near the opening of the outer cylinder of the condenser plate. The filter section 5211 can be used to filter the air flowing through it.

[0655] In the washing chamber of the drum, the humid and hot air generated by drying clothes enters the outer drum. The humid and hot air flows from the side of the condenser plate near the opening of the outer drum to the condenser plate. The humid and hot air exchanges heat with the condenser plate, causing the moisture in the humid and hot air to condense. The humid and hot air then flows through the filter section to the return air vent. The humid and hot air that has passed through the return air vent enters the drying air duct, where the filter section filters the humid and hot air that has passed through it.

[0656] In some embodiments of this application, reference is made to Figures 22 to 29 The flushing port may include a first flushing port 6331. The first flushing port 6331 may communicate with the flushing chamber. The first flushing port may face the return air vent.

[0657] Open the water inlet valve to allow water to enter the flushing chamber, and the water will flow out from the first flushing port. Close the water inlet valve, and no water will flow out from the first flushing port.

[0658] At least part of the water in the flushing chamber is sprayed out through the first flushing port, and the water sprayed out through the first flushing port flushes the return air vent and the filter section.

[0659] The flushing component, which includes a flushing chamber and a first flushing port, is equipped to flush the return air vent and the filter section, preventing lint from clogging the filter section and ensuring the return air from the return air vent and the normal filtration function of the filter section.

[0660] In some embodiments of this application, reference is made to Figures 22 to 29 The rinsing component 63 may include a connector 632. The connector 63 may be connected to the outer cylinder. The connector 63 may be connected to the drying air duct.

[0661] The flushing component 63 may include a flushing disc 633. A connector 63 may be disposed outside the flushing disc. The connector may connect to the flushing disc to form a flushing cavity 6312 located between the two. The connector may also connect to the flushing disc to form a flow duct 6311.

[0662] The connector can be sealed to the drying duct.

[0663] The flushing chamber can be arranged in a circumferential manner. The flushing chamber can surround the outside of the flow duct.

[0664] In some embodiments of this application, reference is made to Figures 22 to 29The connector 632 may include a connector partition 6322. The connector 632 may include a connector enclosure 6323.

[0665] The end of the connector enclosure 6323 furthest from the outer cylinder can be connected to the connector partition. The connector enclosure can be arranged circumferentially. The connector enclosure and the connector partition can be configured to form a connector cavity 6324 located on the side of the connector partition closer to the outer cylinder. The flushing plate can be located inside the connector cavity.

[0666] The second flushing port can be located on the connector. The second flushing port can be located on the connector partition.

[0667] In some embodiments of this application, reference is made to Figures 22 to 29 The flow duct may include a first flow duct 63111. The first flow duct may be formed on the connecting partition. The first flow duct may penetrate the connecting partition.

[0668] In some embodiments of this application, reference is made to Figures 22 to 29 The connecting partition may include a connecting partition body 63221. The connecting partition body may include a first partition 632211.

[0669] The first partition 632211 may be provided with a first partition through hole 6322111. The first partition through hole 6322111 may correspond to the air outlet 262. The first partition through hole 6322111 is used to prevent air from flowing from the air outlet into the drying air duct.

[0670] The connecting partition body may include a first protrusion 632212. The first protrusion may be connected to the first partition. The first protrusion may be located within the through hole of the first partition.

[0671] The second flushing port can be located on the first convex plate, ensuring that the second flushing port faces the drying air duct. The second flushing port can penetrate through the first convex plate.

[0672] There can be several first protrusions. Several first protrusions can be arranged at intervals around the circumference of the through hole 632211 of the first partition.

[0673] Each first protrusion may be provided with at least one second flushing port.

[0674] There can be three first convex plates.

[0675] In some embodiments of this application, reference is made to Figures 22 to 29 The flushing plate 633 may include a flushing plate partition 6332. The flushing chamber is located between the connecting partition and the flushing plate partition. The connecting partition and the flushing plate partition have a certain distance between them to facilitate the formation of the flushing chamber.

[0676] The first flushing port can be located on the flushing tray partition. The first flushing port can penetrate through the flushing tray partition.

[0677] In some embodiments of this application, reference is made to Figures 22 to 29 The flushing tray partition may include a second partition 63321.

[0678] The second partition may be provided with a second partition through hole 633211 that matches the through hole of the first partition. The second partition through hole 633211 may correspond to the air outlet. The second partition through hole 633211 may be used to prevent air from flowing from the air outlet into the drying air duct.

[0679] The flushing tray partition may include a second protrusion 63322. The second protrusion may be connected to the second partition. The second protrusion may be located within a through hole in the second partition.

[0680] The first flushing port can be located on the second partition. The first flushing port can be located on the side of the second partition's through hole away from the outer cylinder opening, ensuring that the first flushing port faces the return air inlet.

[0681] In some embodiments of this application, reference is made to Figures 22 to 29 The connecting member partition may include a first connecting rib 63222 disposed on the side of the connecting member partition body near the outer cylinder. The first connecting rib may be arranged circumferentially. The first connecting rib may be sleeved on the flow channel.

[0682] In some embodiments of this application, the rinsing tray may include an inner insert plate 6333. The inner insert plate 6333 may be connected to the side of the rinsing tray partition away from the outer cylinder. The inner insert plate may be arranged circumferentially. The inner insert plate may be inserted into the side of the first protruding rib of the connector near the connector enclosure.

[0683] In some embodiments of this application, reference is made to Figures 22 to 29 The connecting partition may include a second connecting rib 63223 disposed on the side of the connecting partition body near the outer cylinder. The second connecting rib may be arranged in a circumferential manner.

[0684] The second protruding rib of the connector can be fitted onto the side of the first protruding rib of the connector near the connector enclosure. The second protruding rib, the first protruding rib, and the connector partition body can form the first slot 63224 of the connector. The inner plate of the rinsing tray can be inserted into the first slot of the connector.

[0685] The second flushing port can be located on the side of the second rib of the connector that is close to the connector enclosure.

[0686] In some embodiments of this application, reference is made to Figures 22 to 29The connecting partition may include a third connecting rib 63225 located on the side of the connecting partition body near the outer cylinder. The third connecting rib may be arranged in a circumferential manner.

[0687] The third protruding rib of the connector can be set on the inner side of the connector enclosure. The third protruding rib of the connector can be sleeved on the flow channel.

[0688] The third rib of the connector can be located between the connector enclosure and the second rib of the connector.

[0689] The third protruding rib of the connector can form the second slot 63226 of the connector with the connector enclosure and the connector partition.

[0690] The rinsing tray may include an outer rinsing tray insert 6334. The outer rinsing tray insert can be connected to the outer edge of the rinsing tray partition. The outer rinsing tray insert can be located on the side of the rinsing tray partition away from the outer cylinder. The outer rinsing tray insert can be inserted into the second slot 63226 of the connector.

[0691] The outer plate of the flushing tray can be inserted into the second slot of the connector, and the inner plate of the flushing tray can be inserted into the first slot of the connector, so that the connector and the flushing tray form a flushing chamber located between them. The second flushing port can communicate with the flushing chamber. The first flushing port can communicate with the flushing chamber.

[0692] In some embodiments of this application, reference is made to Figures 22 to 29 The connecting partition body can form a first flow channel. Alternatively, the connecting partition body and the first protruding rib of the connecting part can form a first flow channel.

[0693] The flushing chamber can be arranged in a circumferential manner. The flushing chamber can surround the outer side of the first flow duct.

[0694] In some embodiments of this application, the connector and the rinsing tray can be sealed together. A seal can be provided in the first slot of the connector, such that the inner plate of the rinsing tray abuts against the seal. A seal can be provided in the second slot of the connector, such that the outer plate of the rinsing tray abuts against the seal, preventing water in the rinsing chamber from leaking out at the connection between the connector and the rinsing tray.

[0695] In some embodiments of this application, reference is made to Figures 22 to 29 The first flow duct may include a first flow duct sidewall 631111. The first flow duct sidewall may be provided with a first snap-fit ​​portion 631112 of the connector. The second protruding plate may be provided with a second snap-fit ​​portion 633221, wherein the first snap-fit ​​portion and the second snap-fit ​​portion of the connector are snapped together.

[0696] The second snap-fit ​​part can be located on the side of the inner circumference of the flushing tray near the center of the through hole of the second partition.

[0697] The connector and the rinsing tray can be snapped together first, and then the connector and the rinsing tray can be fixedly connected.

[0698] The first partition may be provided with a first connecting part 6322112 of the connector. The second partition may be provided with a first connecting part 633212 of the rinsing tray. The first connecting part of the connector can be connected to the first connecting part of the rinsing tray.

[0699] The first connection part of the flushing plate can be a hole that penetrates the second partition.

[0700] A first connecting post 6322113 may be provided on the side of the first partition closest to the second partition. A first connecting portion may be provided on the first connecting post. The first connecting portion may be a hole, or it may be a blind hole.

[0701] The drum washing machine may include a second connector, wherein the second connector connects the first connecting portion of the connector and the first connecting portion of the washing tray.

[0702] In some embodiments of this application, reference is made to Figures 22 to 29 A flushing chamber inlet channel 6322114 can be formed on the first partition. Water enters the flushing chamber through the flushing chamber inlet channel.

[0703] The flushing chamber water inlet channel can be connected to the water inlet valve via a water pipe. The water inlet valve is used to control whether water enters the flushing chamber.

[0704] In some embodiments of this application, reference is made to Figures 22 to 29 The outer cylinder and the connecting plate can be sealed together.

[0705] The outer cylinder may have a first protruding rib 263. The first protruding rib may be arranged in a circumferential manner. The first protruding rib may be arranged around the outside of the air outlet.

[0706] A second rib 264 may be formed on the outer cylinder. The second rib may be arranged in a circumferential manner. The second rib may be fitted around the outside of the first rib. A first slot 265 may be formed on the outer cylinder by the first rib and the second rib.

[0707] The connector plate 6323 can be inserted into the first slot of the outer cylinder. The connector plate can abut against the bottom wall of the first slot of the outer cylinder.

[0708] A sealing element may be provided between the connector enclosure and the first slot of the outer cylinder to ensure a sealed connection between the connector enclosure and the outer cylinder.

[0709] In some embodiments of this application, reference is made to Figures 22 to 29The outer insert plate of the rinsing tray extends towards the side of the outer cylinder to form a rinsing tray side circumference 6335. The end of the rinsing tray side circumference near the outer cylinder can abut against the first protruding rib of the outer cylinder.

[0710] In some embodiments of this application, reference is made to Figures 22 to 29 The outer cylinder may be provided with a first connecting part 266. A second connecting part 6325 may be connected to the connecting part plate. The first connecting part of the outer cylinder may be connected to the second connecting part.

[0711] The second connecting part of the connector may be a hole.

[0712] The outer cylinder may be provided with a first connecting post. The first connecting part of the outer cylinder may be a hole. The first connecting part of the outer cylinder may be located on the first connecting post. The first connecting part of the outer cylinder and the second connecting part of the connector may be connected by screws.

[0713] In some embodiments of this application, reference is made to Figures 22 to 29 The outer cylinder may be provided with an outer cylinder first positioning part 267. The connector first positioning part 6326 may be connected to the connector plate. The outer cylinder first positioning part may be inserted into the connector first positioning part or the connector first positioning part may be inserted into the outer cylinder first positioning part.

[0714] Of the first positioning part of the outer cylinder and the first positioning part of the connector, one is a hole and the other is a post, wherein the post is inserted into the hole.

[0715] In some embodiments of this application, reference is made to Figures 22 to 29 A third flushing port 6336 may be provided on the flushing component.

[0716] The rinsing port may include a third rinsing port. The rinsing component may include a flow channel wall 6313 surrounding the flow channel. The third rinsing port may be disposed on the rinsing plate. The third rinsing port may be disposed on the second partition. The third rinsing port may face the flow channel wall. The third rinsing port may be used to rinse the flow channel wall on the rinsing component, thereby cleaning the lint accumulated on the flow channel wall.

[0717] A recessed platform 633213 may be provided on the second partition. A third flushing port may be provided on the side wall 6332131 of the recessed platform. The third flushing port may penetrate the second partition.

[0718] Two third flushing ports can be provided at one recessed platform. The two third flushing ports can be arranged opposite each other. The two third flushing ports can be located on two opposite side walls of the recessed platform. The recessed platform can be located on the side of the second protruding plate away from the flow duct.

[0719] In some embodiments of this application, reference is made to Figures 22 to 29A detection component can be connected to the connecting plate. The detection component can be inserted into the flow duct. A fourth rinsing port 6337 communicating with the rinsing chamber can be provided on the rinsing plate. The rinsing port can include the fourth rinsing port 6337. The fourth rinsing port can face the detection component to avoid the accumulation of lint on the detection component, which would affect the detection accuracy of the detection component. The fourth rinsing port can be set on the second partition.

[0720] A first mounting hole 63231 may be provided on the connecting plate. The detection component may include a temperature sensor. A temperature sensor may be installed in the first mounting hole. The detection end of the temperature sensor extends into the flow duct to detect the temperature of the air flowing through the duct. When the detected temperature reaches a threshold, it indicates that the air coming out of the outer cylinder 2 is hot air, the drying is complete, and the drying process ends.

[0721] The fourth flushing port can be positioned towards the temperature sensor to flush it after prolonged use, preventing the accumulation of lint and debris that could affect its detection accuracy.

[0722] In this application, the rinsing ports include a first rinsing port, a second rinsing port, a third rinsing port, and a fourth rinsing port, which can rinse different objects at different locations. This solves the problem of a single rinsing location in the prior art, improves the lint removal capability at each location, thereby avoiding lint accumulation and improving drying efficiency.

[0723] In some embodiments of this application, reference is made to Figures 20 to 21 An air passage 5212 can be formed on the shielded area 521. The air passage 5212 connects the return air inlet 231 and the space on the side of the condenser plate near the outer cylinder opening. The air passage 5212 is used to allow air to flow through the air passage into the return air inlet.

[0724] In the washing chamber of the drum, the humid and hot air generated by drying clothes enters the outer drum. The humid and hot air flows from the side of the condenser plate near the opening of the outer drum to the condenser plate. The humid and hot air exchanges heat with the condenser plate, causing the moisture in the humid and hot air to condense. The humid and hot air then flows through the filter section and the air vent to the return air vent. The humid and hot air that passes through the return air vent enters the drying air duct, and the filter section filters the humid and hot air flowing through the filter section.

[0725] By installing a condenser plate inside the outer cylinder, water in the humid air is condensed, achieving a pre-dehumidification effect. This reduces the load on the drying unit within the drying duct, improves the dryness of the humid air after drying, and shortens the drying time for clothes. A filter is installed in the shielded area where the condenser plate is located to filter lint from the air, preventing it from entering the drying duct and ensuring heat exchange efficiency within the duct, thus avoiding prolonged drying time. An air vent is also installed in the shielded area to ensure sufficient return airflow, guaranteeing drying efficiency and improving the user experience.

[0726] In some embodiments of this application, reference is made to Figures 20 to 21 The filter section 5211 has filter holes 52111, which is convenient for installation.

[0727] The length of the filter hole 52111 is set vertically.

[0728] In some embodiments of this application, reference is made to Figure 30 A drum washing machine may include a motor 861. The motor 861 may be located inside the drum. The motor 861 may be connected to the rear end of the outer drum. The motor 861 can drive the drum to rotate.

[0729] In some embodiments of this application, the drum washing machine may include a first detection device 862.

[0730] The first detection device 862 can be installed on the outer cylinder. The first detection device can be installed at the top of the outer cylinder. The first detection device can be located at the front of the outer cylinder. The first detection device can be used to detect the vibration displacement and vibration acceleration of the outer cylinder.

[0731] The first detection device can transmit the vibration value and vibration acceleration to the controller via serial communication.

[0732] The first detection device can be a 3D vibration displacement sensor.

[0733] In some embodiments of this application, the controller may have an eccentric mass M built in. i The corresponding first vibration displacement A i , i≥1, and i is a positive integer.

[0734] The mass of the eccentric block inside the drum is M i Furthermore, the vibration displacement detected during the acceleration of the drum speed to the first speed is the first vibration displacement A. i .

[0735] The controller can have a built-in eccentric mass M i The corresponding second vibration displacement B i The mass of the load-bearing cloth inside the roller is M. i Furthermore, the vibration displacement detected during the acceleration of the drum speed to the first speed is the second vibration displacement B. i .

[0736] The first speed can be 400 rpm.

[0737] The thirteenth parameter value is less than the first rotational speed. The thirteenth parameter value can be 390 rpm, 380 rpm, or 370 rpm to avoid difficulty in detecting the first and second vibration displacements due to excessively low rotational speeds.

[0738] The first rotational speed < the fourteenth parameter value. The fourteenth parameter value can be 410 rmp or 420 rmp or 430 rmp, to avoid excessive rotational speed from affecting the detection accuracy of the vibration displacement in the low-speed transient stage, making the correction of the vibration displacement in the low-speed transient more accurate.

[0739] In some embodiments of the present application, referring to Figure 31 , the controller is configured to:

[0740] After receiving the dehydration signal, the controller controls the motor to start, and the motor increases the rotational speed of the drum to the first rotational speed with the first acceleration. During the process of the motor increasing the rotational speed of the drum to the first rotational speed with the first acceleration, the first detection device acquires the vibration displacement of the outer drum and records it as the detected vibration displacement E.

[0741] Based on the detected vibration displacement E, the first vibration displacement A i and the second vibration displacement B i the corrected vibration displacement E' is obtained. When E ≤ A1, E' = E + (A1 - B1), A i < E ≤ A i+1 when, E' = E + (A i - B i ).

[0742] It is judged whether the corrected vibration displacement E' is greater than the maximum limit value of the vibration displacement. When the corrected vibration displacement E' is not greater than the maximum limit value of the vibration displacement, the motor increases the rotational speed of the drum to the rotational speed N; when the corrected vibration displacement E' is greater than the maximum limit value of the vibration displacement, the motor reduces the speed to 0 and shakes the clothes in the drum.

[0743] The detected vibration displacement during the process of the drum rotational speed increasing to the first rotational speed fluctuates greatly. Therefore, correcting the detected vibration displacement during the process of the drum rotational speed increasing to the first rotational speed can improve the accuracy of the vibration displacement in the low-speed transient, can accurately determine whether the drum continues to speed up for dehydration or is redispersed, can improve the success rate of dehydration completion, shorten the dehydration time, and enhance the user experience.

[0744] In some embodiments of the present application,

[0745] When E ≤ A1, E' = E + (A1 - B1); when A1 < E ≤ A2, E' = E + (A2 - B2); when A2 < E ≤ A3, E' = E + (A3 - B3);

[0746] When A3 < E ≤ A4, E' = E + (A4 - B4); when A4 < E ≤ A5, E' = E + (A5 - B5); when A5 < E ≤ A6, E' = E + (A6 - B6); ……; A i < E ≤ A i+1 when, E' = E + (A i - Bi ).

[0747] The unit for eccentric mass is g. M i The eccentric mass can be any value. M1=100g; M2=200g; M3=300g; M4=400g; ... M 10 =1000g.

[0748] Eccentric masses can be classified into four categories: small load, medium load, large load, and ultra-large load.

[0749] Small loads can be assigned to M1, M2, and M3. Medium loads can be assigned to M4, M5, M6, M7, and M8. Large loads can be assigned to M9, M... 10 Extremely high loads can correspond to M. 11 and above.

[0750] The unit of vibration displacement is mm. The eccentric block 864 can be installed inside the drum. The load cloth can be installed inside the drum. The top of the outer drum can be hung on the housing via a hanging spring 863.

[0751] In some embodiments of this application, reference is made to Figure 32 The controller can have a built-in vibration displacement limit value C. j The condition is that j ≥ 1, and j is a positive integer. The larger the value of j, the greater the vibration displacement limit value C. j The larger the value, the greater the vibration displacement limit C. j The largest of the median values ​​can be the maximum limit value for vibration displacement.

[0752] N=n j The smaller the value of j, the more n j The larger.

[0753] When E'≤C1, N=n1, C j <E'≤C j+1 When N=n j+1 Dividing the target rotational speed N into different values, the target rotational speed varies with different vibration displacements. The larger the vibration displacement, the smaller the target rotational speed N, which can reduce vibration noise during dehydration and ensure normal dehydration.

[0754] In some embodiments of the application itself, A1-A can be... i It is divided into j consecutive segments. Each segment can have at least one first vibration displacement value. The maximum first vibration displacement value of each segment can be the vibration displacement limit value C of that segment. j .

[0755] j can be 3. Vibration displacement limit value C j It can be divided into three levels.

[0756] C1 = max(A1~A3); C2 = max(A4~A8); C3 = max(A9~A 10 ).

[0757] In some embodiments of the present application, referring to Figure 33 , the controller is configured as follows:

[0758] After the motor raises the drum rotation speed to rotation speed N, the vibration acceleration of the drum at rotation speed N is obtained and recorded as the detected vibration acceleration F. When the detected vibration acceleration F is not greater than the maximum vibration acceleration limit value, the motor drives the drum to maintain the current rotation speed for a certain period of time and then decelerates to 0, or the motor decelerates the drum to a certain speed, and the motor drives the drum to maintain the decelerated rotation speed for a certain period of time and then decelerates to 0. When the detected vibration acceleration F is greater than the maximum vibration acceleration limit value, the motor decelerates to 0 and shakes the clothes in the drum. It is possible to determine whether the drum can complete dehydration at the current rotation speed according to the vibration acceleration when the rotation speed is relatively high. When the vibration acceleration is too large, the rotation speed can be reduced or shaken again, which can ensure the continuous progress of high-speed dehydration and reduce the vibration noise of high-speed dehydration.

[0759] In some embodiments of the present application, after the foreign objects in the drum are shaken out, the motor is restarted under control, and the motor raises the rotation speed of the drum to the first rotation speed with the first acceleration.

[0760] In some embodiments of the present application, the controller may be built-in with a vibration acceleration limit value D k , k ≥ 1, and k is a positive integer. The larger the value of k, the larger the vibration acceleration limit value D k . The largest value among the values of the vibration acceleration limit value D k is the maximum vibration acceleration limit value.

[0761] The motor raises the drum to the rotation speed N to be n j .

[0762] Under the condition that the detected vibration acceleration F is not greater than the maximum vibration acceleration limit value, when F ≤ D k and K ≤ j, the motor drives the drum to maintain the current rotation speed for a certain period of time and then decelerates to 0. When D k < F and j ≤ K, the motor decelerates the drum to a certain speed, and the motor drives the drum to maintain the decelerated rotation speed for a certain period of time and then decelerates to 0. It can ensure that at different rotation speeds N, it is possible to determine whether to maintain the current rotation speed or decelerate according to the vibration acceleration, and it can be reasonably determined so as to dehydrate at a relatively high speed as much as possible under the condition that the noise is satisfied, improving the dehydration effect.

[0763] In some embodiments of the present application, the motor raises the drum to the rotation speed N to be n j, when detecting that the vibration acceleration F is not greater than the maximum vibration acceleration limit value and satisfying the conditions of D k <F and j ≤ K, D k+o <F ≤ D k+o+1 When, the motor will reduce the speed of the drum to a certain speed N' = n k+o+1 , k ≥ 1, and k is a positive integer, o is a natural number. It can be determined which specific speed is appropriate when the drum decelerates, avoiding excessive deceleration and reducing the dehydration effect, and avoiding too low deceleration and generating a large noise.

[0764] In some embodiments of the present application, the controller may be built-in with an eccentric mass M i The corresponding first vibration acceleration G i , i ≥ 1, and i is a positive integer. The vibration acceleration detected when the drum speed is the second speed is the first vibration acceleration G i , and the second speed is greater than the first speed.

[0765] M1 - M 10 The corresponding first vibration acceleration is G1 - G 10 . M i The corresponding first vibration acceleration is G i .

[0766] In some embodiments of the present application, G1 - G i can be divided into k consecutive segments. Each segment may have at least one first vibration acceleration value. The maximum first vibration acceleration value of each segment is the vibration displacement limit value D of this segment k .

[0767] k can be 3. The vibration displacement limit value D k can be divided into three gears. D1 = max(G1~G3); D2 = max(G4~G8); D3 = max(G9~G 10 ).

[0768] The drum speed N can be in 3 gears. N = n1; N = n2; N = n3. n1, n2, and n3 decrease in sequence.

[0769] In some embodiments of the present application, A1 - A i The number of segments divided can be equal to the number of segments divided by G1 - G i . For the same eccentric mass M i The number of segments corresponding to the first vibration displacement and the first vibration acceleration can be equal. This makes the vibration displacement limit value and the vibration acceleration limit value match each other, ensuring that the judgment of vibration displacement and vibration acceleration is under the same standard.

[0770] In some embodiments of the present application, after obtaining the corrected vibration displacement E', when E' ≤ C1, the motor raises the drum speed to n1; when C1 < E' ≤ C2, the motor raises the drum speed to n2; when C2 < E' ≤ C3, the motor raises the drum speed to n3; when C3 < E', the motor reduces the speed to 0 and shakes the clothes inside the drum.

[0771] After the motor raises the drum speed to n1, when F ≤ D1, the motor drives the drum to run at the speed of n1 for the first holding time and then reduces the speed to 0; when D1 < F ≤ D2, the motor drives the drum to reduce to the speed of n2 and run for the first holding time and then reduces the speed to 0; when D2 < F ≤ D3, the motor drives the drum to reduce to the speed of n3 and run for the first holding time and then reduces the speed to 0; when D3 < F, the motor reduces the speed to 0 and shakes the clothes inside the drum.

[0772] After the motor raises the drum speed to n2, when F ≤ D2, the motor drives the drum to run at the speed of n2 for the first holding time and then reduces the speed to 0; when D2 < F ≤ D3, the motor drives the drum to reduce to the speed of n3 and run for the first holding time and then reduces the speed to 0; when D3 < F, the motor reduces the speed to 0 and shakes the clothes inside the drum.

[0773] After the motor raises the drum speed to n3, when F ≤ D3, the motor drives the drum to run at the speed of n3 for the first holding time and then reduces the speed to 0; when D3 < F, the motor reduces the speed to 0 and shakes the clothes inside the drum.

[0774] The first holding time can be 60s.

[0775] The fifteenth parameter < the first holding time. The fifteenth parameter can be 55s or 50s or 45s. To avoid poor dehydration effect caused by too short time.

[0776] The first holding time < the sixteenth parameter. The fifteenth parameter can be 65s or 70s or 75s. To avoid too long dehydration time, occupying too much time and affecting the user experience.

[0777] In some embodiments of the present application, after the motor drives the drum to run for the first holding time and then reduces the speed to 0, the dehydration ends.

[0778] In some embodiments of the present application, the level of the load inside the drum is determined according to the detected vibration displacement E before obtaining the corrected vibration displacement E'.

[0779] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0780] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the embodiments and various different variations of the embodiments suitable for specific application considerations.

Claims

1. A drum washing machine (100), characterized in that, include: The box (1) has a placement space (12), and the outer surface of the box (1) has a left side, a right side, a front side and a rear side; An outer cylinder (2) is disposed in the placement space (12), the outer cylinder (2) having an outer cylinder cavity (22); the outer cylinder (2) has a front end, the front end being close to the front side; The outer cylinder (2) includes: The first outer cylinder connector (210) is located on the left side of the outer wall of the outer cylinder (2); The second outer cylinder connector (220) is located on the right side of the outer wall of the outer cylinder (2); A roller (3) is disposed in the outer cylinder cavity (22), and the roller (3) is rotatably disposed relative to the outer cylinder (2); Shock absorber (82), said shock absorber (82) comprising: The first shock absorber (823) is located on the left side inside the housing (1); the bottom end of the first shock absorber (823) is closer to the left side than the top end of the first shock absorber (823); the top end of the first shock absorber (823) is connected to the first outer cylinder connector (210); and the bottom end of the first shock absorber (823) is rotatably connected to the inner bottom wall of the housing (1) through the first adapter (83a). The second shock absorber (824) is located on the right side inside the housing (1); the bottom end of the second shock absorber (824) is closer to the right side than the top end of the second shock absorber (824); the top end of the second shock absorber (824) is connected to the second outer cylinder connector (220); and the bottom end of the second shock absorber (824) is rotatably connected to the inner bottom wall of the housing (1) through the second adapter (83b). Wherein, along the axial direction of the outer cylinder (2), the top end of the first shock absorber (823) and the top end of the second shock absorber (824) are connected to the outer cylinder (2) at a position closer to the front side than the rear side; The outer diameter of the outer drum (2) is D1, and the outer wall width of the drum washing machine (100) is L. D1 and L satisfy: 0.93 < D1 / L < 0.98; The first connection center point is defined as the center point where the top of the first shock absorber (823) is connected to the center of the first outer cylinder connector (210). The axis passing through the first connection center point on the radial section of the outer cylinder (2) is defined as the first outer cylinder axis. The line segment between the first connection center point and the first outer cylinder axis is the first connecting line. The line segment between the first connection center point and the axis of the first adapter (83a) is the second connecting line. The angle between the first connecting line and the second connecting line at the center point of the first connection is α2, and α2 satisfies: 166°<α2<170°; The top of the second shock absorber (824) is connected to the center point of the second outer cylinder connector (220) as the second connection center point; the line segment between the second connection center point and the axis of the first outer cylinder is the third connection line; and the line segment between the second connection center point and the axis of the rotation shaft of the second adapter (83b) is the fourth connection line. The angle between the third and fourth lines at the center point of the second connection is α4, and α4 satisfies: 166° < α4 < 170°.

2. The drum washing machine (100) according to claim 1, characterized in that, The distance between the center point of the rotating shaft of the first adapter (83a) and the center point of the rotating shaft of the second adapter (83b) is L1, and the outer diameter of the outer cylinder (2) is D1. L1 and D1 satisfy: 0.95 <L1 / D1<0.98。 3. The drum washing machine (100) according to claim 2, characterized in that, The line connecting the center point of the first adapter (83a) rotation shaft and the center point of the second adapter (83b) rotation shaft is defined as the first bottom end line; and the perpendicular line passing through the center of the first outer cylinder and perpendicular to the first bottom end line is defined as the first vertical line. The first connecting line and the first vertical line have an angle α1, wherein α1 satisfies: 35° < α1 < 39°, and the third connecting line and the first vertical line have an angle α3, wherein α3 satisfies: 35° < α3 < 39°.

4. The drum washing machine (100) according to claim 3, characterized in that, The distance LA is the plane containing the line connecting the first outer cylinder axis to the first bottom end, and LA satisfies: 418mm. <LA<422mm。 5. The drum washing machine (100) according to claim 4, characterized in that, The outer cylinder (2) also includes: The third outer cylinder connector (230) is located on the left side of the outer wall of the outer cylinder (2); The fourth outer cylinder connector (240) is located on the right side of the outer wall of the outer cylinder (2); The shock absorber (82) also includes: The third shock absorber (825) is located on the left side inside the housing (1); along the axial direction of the outer cylinder (2), the top end of the third shock absorber (825) is connected to the third outer cylinder connector (230) at a position closer to the rear side than the front side; the bottom end of the third shock absorber (825) is closer to the left side than the top end of the third shock absorber (825). The fourth shock absorber (826) is located on the right side inside the housing (1); along the axial direction of the outer cylinder (2), the top end of the fourth shock absorber (826) is connected to the fourth outer cylinder connector (240) at a position closer to the rear side than the front side; the bottom end of the fourth shock absorber (826) is closer to the right side than the top end of the fourth shock absorber (826). The top of the third shock absorber (825) and the center point of the third outer cylinder connector (230) are defined as the third connection center point. The axis passing through the third connection center point on the radial section of the outer cylinder (2) is defined as the second outer cylinder axis. The line segment between the third connection center point and the second outer cylinder axis is the fifth line. The line segment between the third connection center point and the axis point of the third adapter (83c) at the bottom of the third shock absorber (825) is the sixth line. The angle between the fifth and sixth connecting lines at the third connecting center point is α6; α6 and α2 satisfy α6 < α2; The top of the fourth shock absorber (826) and the center point of the fourth outer cylinder connector (240) are defined as the fourth connection center point. The line segment passing through the fourth connection center point and the axis of the second outer cylinder is the seventh line segment. The line segment between the fourth connection center point and the axis of the rotation shaft of the fourth adapter (83d) at the bottom of the fourth shock absorber (826) is the eighth line segment. The angle between the seventh and eighth lines at the fourth connection center point is α8; α8 and α4 satisfy α8 < α4.

6. The drum washing machine (100) according to claim 5, characterized in that, The bottom end of the third shock absorber (825) is rotatably connected to the inner bottom wall of the housing (1) via the third adapter (83c); The bottom end of the fourth shock absorber (826) is rotatably connected to the inner bottom wall of the housing (1) via the fourth adapter (83d); Along the outer periphery of the outer cylinder (2), the third outer cylinder connector (230) is closer to the top wall of the box body (1) than the first outer cylinder connector (210), and the fourth outer cylinder connector (240) is closer to the top wall of the box body (1) than the second outer cylinder connector (220).

7. The drum washing machine (100) according to claim 6, characterized in that, The pivot point of the rotating shaft of the third adapter (83c) and the pivot point of the rotating shaft of the fourth adapter (83d) have a second bottom end connection line. The perpendicular line passing through the axis of the second outer cylinder and perpendicular to the line connecting the second bottom end is defined as the second vertical line; The fifth connecting line and the second vertical line have an included angle α5, and α5 and α1 satisfy α1 < α5; The seventh connecting line and the second vertical line have an included angle α7; α7 and α3 satisfy α3 < α7.

8. The drum washing machine (100) according to claim 7, characterized in that, The vertical distance from the axis of the second outer cylinder to the line connecting the second bottom end is LB, and LA and LB satisfy: LA=LB.

9. The drum washing machine (100) according to claim 8, characterized in that, The vertical distance from the first connection center point to the first bottom end on the radial section of the roller (3) is La, and the vertical distance from the third connection center point to the second bottom end on the radial section of the roller (3) is Lb; La and Lb satisfy: La < Lb.

10. The drum washing machine (100) according to claim 8, characterized in that, The LB satisfies: 418mm <LB<422mm。 11. The drum washing machine (100) according to claim 9, characterized in that, The condition La satisfies: 134mm < La < 138mm; The Lb satisfies the condition that 139mm < Lb < 143mm.

12. The drum washing machine (100) according to claim 7, characterized in that, The α5 satisfies that 39° < α5 < 43°; The α6 satisfies 156°<α6<160°.

13. The drum washing machine (100) according to claim 4, characterized in that, The LA satisfies: 418.5mm <LA<419.5mm。 14. The drum washing machine (100) according to claim 8, characterized in that, The LB value satisfies: 418.5mm <LB<419.5mm。 15. The drum washing machine (100) according to claim 9, characterized in that, The condition La satisfies: 135mm < La < 137mm; The Lb satisfies the condition that 140mm < Lb < 142mm.

16. The drum washing machine (100) according to claim 2, characterized in that, The α2 satisfies: 167°<α2<169°.

17. The drum washing machine (100) according to claim 3, characterized in that, The α1 satisfies: 36°<α1<38°.

18. The drum washing machine (100) according to claim 6, characterized in that, The distance between the first connection center point and the second connection center point is defined as L2; The distance between the third connection center point and the fourth connection center point is defined as L4; The L2 and L4 satisfy the condition: L4 > L2.

19. The drum washing machine (100) according to claim 18, characterized in that, The distance between the center point of the rotating shaft of the third adapter (83c) and the center point of the rotating shaft of the fourth adapter (83d) is L3. The L1 and L3 satisfy the condition: L3 = L1.

20. A drum washing machine (100), characterized in that, include: The box (1) has a placement space (12), and the outer surface of the box (1) has a left side, a right side, a front side and a rear side; The outer cylinder (2) is disposed in the placement space (12); The outer cylinder (2) has an outer cylinder cavity (22), and the outer cylinder (2) includes: The third outer cylinder connector (230) is located on the left side of the outer wall of the outer cylinder (2); The fourth outer cylinder connector (240) is located on the right side of the outer wall of the outer cylinder (2); The outer cylinder (2) has a rear end, which is close to the rear side; A roller (3) is disposed in the outer cylinder cavity (22), and the roller (3) is rotatably disposed relative to the outer cylinder (2); The drive motor has its shaft passing through the rear end of the outer cylinder (2) and connected to the output shaft of the drive motor. Shock absorber (82), said shock absorber (82) comprising: The third shock absorber (825) is located on the left side inside the housing (1). The bottom end of the third shock absorber (825) is closer to the left side than the top end of the third shock absorber (825). The top end of the third shock absorber (825) is connected to the third outer cylinder connector (230) of the outer cylinder (2). The bottom end of the third shock absorber (825) is rotatably connected to the inner bottom wall of the housing (1) through the third adapter (83c). The fourth shock absorber (826) is located on the right side inside the housing (1). The bottom end of the fourth shock absorber (826) is closer to the right side than the top end of the fourth shock absorber (826). The top end of the fourth shock absorber (826) is connected to the fourth outer cylinder connector (240) of the outer cylinder (2). The bottom end of the fourth shock absorber (826) is rotatably connected to the inner bottom wall of the housing (1) through the fourth adapter (83d). Along the axial direction of the outer cylinder (2), the top end of the third shock absorber (825) and the top end of the fourth shock absorber (826) are both connected to the outer cylinder (2) closer to the rear side relative to the front side. The outer diameter of the outer drum (2) is D1, and the outer wall width of the drum washing machine (100) is L. D1 and L satisfy: 0.93 < D1 / L < 0.98; The top of the third shock absorber (825) and the center point of the third outer cylinder connector (230) are defined as the third connection center point. The axis passing through the third connection center point on the radial section of the outer cylinder (2) is defined as the second outer cylinder axis. The line segment between the third connection center point and the second outer cylinder axis is the fifth connecting line. The line segment between the third connection center point and the axis of the rotation shaft of the third adapter (83c) is the sixth connecting line. The angle between the fifth and sixth lines at the third connection center point is α6, and α6 satisfies 156°<α6<160°; The top of the fourth shock absorber (826) and the center point of the fourth outer cylinder connector (240) are defined as the fourth connection center point. The line segment passing through the fourth connection center point and the axis of the second outer cylinder is the seventh line segment. The line segment between the fourth connection center point and the axis of the rotation shaft of the fourth adapter (83d) is the eighth line segment. The angle between the seventh and eighth lines at the center point of the fourth connection is α8, and α8 satisfies 156°<α8<160°.

21. The drum washing machine (100) according to claim 20, characterized in that, The distance between the center points of the rotating shafts of the third adapter (83c) and the fourth adapter (83d) is L3; the outer diameter of the outer cylinder (2) is D1. The L3 and D1 satisfy: 0.95 <L3 / D1<0.98。 22. The drum washing machine (100) according to claim 21, characterized in that, The axis of the third adapter (83c) and the axis of the fourth adapter (83d) have a second bottom line; and a perpendicular line passing through the axis of the second outer cylinder and perpendicular to the line connecting the second bottom is defined as a second vertical line. The fifth connecting line and the second vertical line have an included angle α5, wherein α5 satisfies 39°<α5<43°; The seventh line and the second vertical line have an included angle α7, where α7 satisfies 39° < α7 < 43°.

23. The drum washing machine (100) according to claim 22, characterized in that, The vertical distance LB is the plane containing the line connecting the second outer cylinder axis to the second bottom end, and LB satisfies: 418mm. <LB<422mm。 24. The drum washing machine (100) according to claim 23, characterized in that, The outer cylinder (2) includes: The first outer cylinder connector (210) is located on the left side of the outer wall of the outer cylinder (2); The second outer cylinder connector (220) is located on the right side of the outer wall of the outer cylinder (2); The shock absorber (82) includes: The first shock absorber (823) is located on the left side inside the housing (1); the bottom end of the first shock absorber (823) is closer to the left side than the top end of the first shock absorber (823); the top end of the first shock absorber (823) is connected to the first outer cylinder connector (210); and the bottom end of the first shock absorber (823) is rotatably connected to the inner bottom wall of the housing (1) through the first adapter (83a). The second shock absorber (824) is located on the right side inside the housing (1); the bottom end of the second shock absorber (824) is closer to the right side than the top end of the second shock absorber (824); the top end of the second shock absorber (824) is connected to the second outer cylinder connector (220); and the bottom end of the second shock absorber (824) is rotatably connected to the inner bottom wall of the housing (1) through the second adapter (83b). Wherein, along the axial direction of the outer cylinder (2), the top end of the first shock absorber (823) and the top end of the second shock absorber (824) are connected to the outer cylinder (2) at a position closer to the front side than the rear side; The first connection center point is defined as the center point where the top of the first shock absorber (823) is connected to the center point of the first outer cylinder connector (210), the axis passing through the first connection center point on the radial section of the outer cylinder (2) is defined as the first outer cylinder axis, the first connection center point and the first outer cylinder axis are connected by a first line; and the first connection center point and the axis of the first adapter (83a) rotation shaft are connected by a second line. The line connecting the center point of the first adapter (83a) rotation shaft and the center point of the second adapter (83b) rotation shaft is defined as the first bottom line; and the perpendicular line passing through the center of the first outer cylinder and perpendicular to the first bottom line is defined as the first vertical line; the first line and the first vertical line have an angle α1, and the first line and the second line have an angle α2. The following conditions are met: α5 and α1 satisfy α1 < α5; α6 and α2 satisfy α6 < α2. The top of the second shock absorber (824) is connected to the center point of the second outer cylinder connector (220), which is defined as the second connection center point. There is a third connection between the second connection center point and the axis of the first outer cylinder; and there is a fourth connection between the second connection center point and the axis of the rotation shaft of the second adapter (83b). The third connecting line has an angle α3 with the first vertical line, and the third connecting line and the fourth connecting line have an angle α4. The following conditions are met: α7 and α3 satisfy α3 < α7; α8 and α4 satisfy α8 < α4.

25. The drum washing machine (100) according to claim 24, characterized in that, The top end of the first shock absorber (823) is connected to the first outer cylinder connector (210), and the bottom end of the first shock absorber (823) is rotatably connected to the inner bottom wall of the box (1) through the first adapter (83a); The top end of the second shock absorber (824) is connected to the second outer cylinder connector (220), and the bottom end of the second shock absorber (824) is rotatably connected to the inner bottom wall of the box (1) through the second adapter (83b); Along the outer periphery of the outer cylinder (2), the third outer cylinder connector (230) is closer to the top wall of the box body (1) than the first outer cylinder connector (210), and the fourth outer cylinder connector (240) is closer to the top wall of the box body (1) than the second outer cylinder connector (220).

26. The drum washing machine (100) according to claim 24, characterized in that, There is a first bottom connection between the center point of the bottom rotation shaft of the first shock absorber (823) and the center point of the bottom rotation shaft of the second shock absorber (824); The outer cylinder (2) has a front end, which is closer to the front side than the rear end. The vertical distance from the axis of the front end to the line connecting the first bottom end is LA. The LA and the LB satisfy: LA=LB.

27. The drum washing machine (100) according to claim 26, characterized in that, The vertical distance from the first connection center point to the first bottom end on the radial section of the roller (3) is La, and the vertical distance from the third connection center point to the second bottom end on the radial section of the roller (3) is Lb; La and Lb satisfy: La < Lb.

28. The drum washing machine (100) according to claim 27, characterized in that, The following three conditions must be met at least one of them: The LA satisfies: 418mm <LA<422mm; The condition La satisfies: 134mm < La < 138mm; The Lb satisfies the condition that 139mm < Lb < 143mm.

29. The drum washing machine (100) according to claim 24, characterized in that, The following four conditions must be met at least one of them: The α1 satisfies: 35° < α1 < 39°; The α2 satisfies: 166°<α2<170°; The α3 satisfies: 35°<α3<39°; The α4 satisfies: 166° < α4 < 170°.

30. The drum washing machine (100) according to claim 26, characterized in that, The following two conditions must be met at least one of them: The LA satisfies: 418.5mm <LA<419.5mm; The LB value satisfies: 418.5mm <LB<419.5mm。 31. The drum washing machine (100) according to claim 27, characterized in that, The following two conditions must be met at least one of them: The condition La satisfies: 135mm < La < 137mm; The Lb satisfies the condition that 140mm < Lb < 142mm.

32. The drum washing machine (100) according to claim 24, characterized in that, The following four conditions must be met at least one of them: The α1 satisfies: 36°<α1<38°; The α2 satisfies: 167°<α2<169°; The α3 satisfies: 36°<α3<38°; The α4 satisfies: 167° < α4 < 169°.

33. The drum washing machine (100) according to claim 24, characterized in that, The following four conditions must be met at least one of them: The α5 satisfies 40.5° < α5 < 41.5°; The α6 satisfies that 157° < α6 < 159°; The condition α7 satisfies 40°<α7<41°; The α8 satisfies 157°<α8<159°.

34. The drum washing machine (100) according to claim 27, characterized in that, The distance between the first connection center point and the second connection center point is defined as L2; The distance between the third connection center point and the fourth connection center point is defined as L4; The L2 and L4 satisfy the condition: L4 > L2.

35. The drum washing machine (100) according to claim 34, characterized in that, The distance between the center point of the first adapter (83a) rotating shaft and the center point of the second adapter (83b) rotating shaft is L1; The distance between the center point of the rotating shaft of the third adapter (83c) and the center point of the rotating shaft of the fourth adapter (83d) is L3. The L1 and L3 satisfy the condition: L3 = L1.

36. The drum washing machine (100) according to any one of claims 2-35, characterized in that, There is a distance B between the bottom end of the inner wall of the left side and the bottom end of the inner wall of the right side, and D1 and B satisfy: 0.92 < D1 / B < 0.

99.

37. The drum washing machine (100) according to claim 35, characterized in that, The following four conditions must be met at least one of them: The L1 satisfies: 530mm <L1<560mm; The L2 satisfies: 365mm <L2<369mm; The L3 satisfies: 530mm <L3<560mm; The L4 satisfies: 309mm <L4<403mm。 38. The drum washing machine (100) according to any one of claims 1-35, characterized in that, Also includes: A reinforcing member (81) extends along the front side to the rear side; the top end of the reinforcing member (81) is connected to the adapter (83), and the bottom end of the reinforcing member (81) is connected to the inner bottom wall of the housing (1). The reinforcing member (81) is used to connect the bottom end of the adapter (83) to the inner bottom wall of the housing (1).

39. The drum washing machine (100) according to claim 38, characterized in that, The adapter (83) includes: Adapter base plate (831); A transition plate (832) is disposed above the transition base plate (831), and the bottom end of the transition plate (832) is connected to the transition base plate (831); there are two transition plates (832), and the two transition plates (832) are arranged opposite to each other; The two adapter plates (832) are provided with adapter first connection holes (8321), the adapter first connection holes (8321) penetrate the adapter plate (832) in the thickness direction, and the bottom end of the shock absorber (82) is located between the two adapter plates (832).

40. The drum washing machine (100) according to claim 39, characterized in that, The adapter plate (832) is arranged along the width direction of the box (1). In the width direction of the box (1), the first connecting hole (8321) of the adapter is located on the side of the middle of the adapter plate (832) away from the rotating shaft of the roller (3).

41. The drum washing machine (100) according to claim 40, characterized in that, The reinforcing member (81) is provided with a first snap-fit ​​structure (811), and the adapter (83) includes: The second snap-fit ​​structure (833) is connected to the adapter base plate (831) and located below the adapter base plate (831). The second snap-fit ​​structure (833) and the first snap-fit ​​structure (811) snap-fit ​​together.

42. The drum washing machine (100) according to claim 41, characterized in that, The base plate (831) is provided with a first connecting structure (8311) for connecting with the reinforcing member (81). In the front-rear direction of the housing (1), the first connecting structure (8311) is located between the two connecting uprights (832).

43. The drum washing machine (100) according to claim 42, characterized in that, In the width direction of the housing (1), the first connecting structure (8311) is located on the side of the center of the adapter base plate (831) near the rotating shaft of the roller (3).

44. The drum washing machine (100) according to claim 43, characterized in that, The adapter base plate (831) is provided with a second connection structure (8312) for connecting with the reinforcing member (81). In the width direction of the box body (1), the second connection structure (8312) is located on the side of the first connection structure (8311) away from the rotation axis of the roller (3).

45. The drum washing machine (100) according to claim 44, characterized in that, The second connection structure (8312) is a third connection hole of the adapter, which penetrates the adapter base plate (831) in the thickness direction and the top end of the third connection hole extends into the adapter upright plate (832).

46. ​​The drum washing machine (100) according to claim 45, characterized in that, The two adapter plates (832) are a first adapter plate (832) and a second adapter plate (832), and the adapter has at least two third connection holes, at least one of the adapter third connection holes extending into the first adapter plate (832).

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