Clothes processing device with dehydration function

Abstract

The present invention provides a clothing processing device with a dehydration function. A flat hollow bladder is added to the bottom of the inner drum, minimizing the space required for the washing machine. The hollow bladder is surrounded by a corrugated, expandable ring. When the washing machine's control system weighs the clothes before dehydration, it automatically injects an appropriate amount of balancing fluid via a water pump based on the weight. This automatically adjusts the balance using inertia during dehydration, enabling precise dynamic balance control during high-speed dehydration. This also reduces noise during washing and dehydration, minimizing vibration and displacement issues. After dehydration is complete, the control system pumps out the balancing fluid, minimizing impact on the washing or dehydration process.

Description

Technical Field

[0001] The present invention relates to the technical field of washing machines, and in particular to a clothes processing device with a dehydration function. Background Art

[0002] Washing machines rotate at high speeds during the dehydration process to remove water from clothes. However, after absorbing water, clothes are heavier, such as thick cotton clothes and jeans. This can easily cause large eccentric loads when the drum rotates, making it impossible for the washing machine to achieve high-speed dehydration, or causing loud noise and vibration displacement during high-speed dehydration, seriously affecting the user experience and the lifespan of the washing machine. This problem is one of the key issues plaguing the development of washing machines. Current solutions mostly involve installing counterweights, suspension springs, and dampers on the outer drum for combined dynamic balancing and vibration reduction. These vibration reduction designs make the entire machine extremely heavy. Another solution is to use a balance ring and add heavier objects such as steel balls or iron blocks to the balance ring. During the dehydration process, the steel balls automatically move to the opposite side of the eccentricity to achieve a balancing effect. However, this method uses a fixed weight eccentricity and often may not achieve a good balancing effect.

[0003] Based on this, there is a need for improvement. Summary of the Invention

[0004] This application is based on the inventor's discovery and understanding of the following problems and facts: the present invention can adjust the dynamic balance of the washing machine in the dehydration state, effectively reduce the eccentricity in the dehydration stage, and reduce the operating noise of the washing machine.

[0005] The present invention addresses the technical deficiencies in the prior art for adjusting the dynamic balance of a washing machine's dehydration function by proposing a drum dynamic balance control system capable of dynamically adjusting the eccentric mass according to the eccentricity value, aiming to at least partially resolve the aforementioned technical issues.

[0006] To this end, the present invention provides a clothes processing device with a dehydration function, which includes:

[0007] a clothes processing drum, the interior of which forms a drum cavity;

[0008] a capsule body, laid on the bottom of the cylindrical cavity;

[0009] The capsule is a retractable elastic body with a hollow capsule cavity. The capsule cavity is sealed with a weight liquid, and the weight liquid can be controlled to fill or extract the capsule cavity to make the capsule expand or contract.

[0010] Optionally, the capsule is flat, having opposite upper and lower walls and side walls arranged between the upper and lower walls, the lower wall having a shape adapted to the bottom of the barrel cavity, the side wall having a shape adapted to the inner wall of the laundry treatment barrel cavity, and the upper wall having a raised auxiliary washing structure formed on the side facing the barrel cavity.

[0011] Optionally, the laundry processing drum comprises an outer drum and an inner drum, the drum cavity is formed in the inner drum, and the capsule is detachably arranged on the inner bottom wall of the inner drum;

[0012] Optionally, a liquid inlet is provided on the lower wall of the capsule; the inner cylinder is connected to a rotating shaft, and the rotating shaft is a hollow shaft; the clothing processing device is provided with a liquid infusion pipe, and the liquid infusion pipe extends from the outside of the inner cylinder into the inner cylinder along the hollow shaft and is sealed with the liquid inlet;

[0013] Optionally, one end of the rotating shaft is sealed with the liquid inlet; the shaft opening at the other end of the rotating shaft is connected to the delivery pipe, and the other end of the delivery pipe is connected to the liquid storage box;

[0014] Optionally, the rotating shaft and the clothes processing drum are an integrated structure;

[0015] Optionally, the inner wall of the shaft opening of the rotating shaft is a connectable wall surface for connecting with the delivery pipe, and a rotating sealing portion is provided at the gap fitting of the connection.

[0016] Optionally, the rotary seal portion includes, from inside to outside, a small sealing ring, a bearing, and a large sealing ring; the bearing is provided at a middle position of the clearance fit; the small sealing ring is provided on the axial inner side of the bearing, close to the capsule, and located between the outer wall of the delivery tube and the inner wall of the rotating shaft; the large sealing ring is provided on the axial outer side of the bearing, close to the delivery tube, and located between the outer wall of the delivery tube and the inner wall of the rotating shaft;

[0017] Optionally, a water pump is provided between the shaft opening of the rotating shaft and the liquid storage box for extracting the counterweight liquid;

[0018] Optionally, the side wall of the capsule is a corrugated telescopic structure and / or other telescopic structure;

[0019] Optionally, the fitting surface between the capsule and the barrel cavity is provided with a raised buckle, which is embedded in a corresponding fitting hole on the bottom wall of the barrel cavity and is used for fixing to the bottom wall of the barrel cavity;

[0020] Beneficial effects of the present invention:

[0021] The present invention adds a flat hollow bladder to the bottom of the inner drum, which has a minimal impact on the space required for washing machines. The bladder is corrugated around a circle, giving it greater elasticity. When a clothing processing device using the hollow bladder of the present invention weighs the clothes before dehydrating them, it automatically injects an appropriate amount of balancing liquid through a water pump based on the weight of the wet clothes. This automatically adjusts the balance using inertia during dehydration. When balancing, it can precisely control the dynamic balance during high-speed dehydration. It can also reduce noise during washing and dehydration, minimizing vibration and displacement issues in the washing machine. When the dehydration function is completed, the control system extracts the balancing liquid, minimizing the impact on the washing or dehydration process.

[0022] Furthermore, the bladder body is made into a rubber part, and the shape of the surface of the bladder facing the drum can be adjusted, such as auxiliary washing structures of different shapes such as patterns and ribs, which can achieve better washing effects.

[0023] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic cross-sectional structural diagram of the entire machine according to an embodiment of the present invention;

[0025] Figure 2 is a schematic diagram of a partially enlarged structure of a capsule edge according to an embodiment of the present invention;

[0026] Figure 3 2. It is a schematic diagram of the dehydration equilibrium state structure according to an embodiment of the present invention;

[0027] Figure 4 is a schematic diagram of a partially enlarged structure of a bellows at the edge of a bladder during dynamic balancing according to an embodiment of the present invention;

[0028] Figure 5 is a flow chart of a control system according to an embodiment of the present invention;

[0029] Figure 6 is a partial enlarged structural schematic diagram of a rotary seal portion according to an embodiment of the present invention;

[0030] Reference numerals:

[0031] 1. Cylinder cavity; 2. Capsule; 201. Corrugated structure; 202. Buckle; 203. Liquid inlet; 3. Rotating shaft; 4. Rotating sealing part; 401. Small sealing ring; 402. Bearing; 403. Large sealing ring; 5. Liquid storage box; 6. Water pump; 7. Delivery pipe; 8. Clothes; 9. Clothes processing drum; 10. Auxiliary washing structure. DETAILED DESCRIPTION

[0032] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0035] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0036] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0037] Existing laundry processing equipment, due to the heavy weight of absorbed clothing, such as thick cotton clothing and jeans, is prone to significant eccentric loading during the spin cycle. This can prevent the washing machine from achieving high-speed spin cycles or cause loud noise and vibration shifting during high-speed spin cycles, seriously impacting the user experience and the washing machine's service life. While counterweights, suspension springs, and dampers are incorporated into the outer drum for combined dynamic balancing and vibration reduction, these designs make the entire machine extremely heavy. Other methods employ balancing rings, which incorporate heavy objects such as steel balls or iron blocks. During the spin cycle, the steel balls automatically shift to the opposite side of the eccentricity, achieving a balanced effect. However, this method uses a fixed-weight eccentricity and often fails to achieve a satisfactory balance. The present invention utilizes a retractable, elastic bladder filled with a balancing liquid at the inner bottom of the washing tub, which can adjust the dynamic balance of the washing machine during the spin cycle. Adjusting the amount of balancing liquid effectively reduces eccentricity during the spin cycle, thereby reducing operating noise.

[0038] Example 1

[0039] Combine Figure 1-4 、 Figure 6 This embodiment provides a clothes processing device with a dehydration function, such as a drum washing machine, and the clothes processing device includes:

[0040] A laundry treatment drum 9, the interior of which forms a drum cavity 1;

[0041] The capsule 2 is laid at the bottom of the cylindrical cavity 1; the capsule 2 is a retractable elastic body with a hollow cavity; the cavity of the capsule 2 is sealed with a weight liquid, and the weight liquid can be controlled to fill or extract the cavity to make the capsule 2 expand or contract.

[0042] Furthermore, the present invention adds a hollow bladder 2 at the bottom of the drum cavity 1, minimizing the impact on the washing machine's usable space. When the laundry processing device weighs the clothes before dehydration, it automatically injects an appropriate amount of weighting liquid through the water pump 6 based on the weight of the wet clothes. This automatically adjusts the balance of the clothes during dehydration by utilizing inertia. This allows precise control of dynamic balance during high-speed dehydration, while also reducing noise during washing and dehydration, and minimizing vibration and displacement issues in the laundry machine.

[0043] Preferably, the bladder 2 is flat, allowing it to be laid on the bottom of the washing machine's drum like a cushion. Specifically, the bladder 2 has opposing upper and lower walls, and side walls disposed between the upper and lower walls. The lower wall is shaped to fit the bottom of the drum 1 and is in close contact with the bottom wall of the drum 1. The side walls are shaped to fit the inner sidewalls of the laundry treatment drum 9 and are in close contact with the sidewalls of the drum 1. To further utilize the bladder to achieve multiple benefits, a raised auxiliary washing structure 10 is formed on the upper wall facing the drum 1. The fitting surface between the capsule 2 and the barrel cavity 1 is provided with a raised buckle 202, which is embedded in the corresponding adapter hole on the bottom wall of the barrel cavity 1 and connected to the bottom wall of the barrel cavity 1, so that the capsule 2 can rotate together with the barrel 1; the capsule 2 has a liquid inlet 203 on the side close to the rotating shaft 3, and a corrugated sealing ring on the outside of the liquid inlet 203, which is tightly connected to the hollow rotating shaft 3, and the other end is connected to the bearing 402 and the delivery pipe 7 through two sealing rings. The inner ring of the bearing 402 is fixed to the delivery pipe 7, and the outer ring is fixed to the rotating shaft 3. The two sealing rings are at both ends of the bearing 402, so that the delivery pipe 7 will not rotate while the shaft rotates, and the sealing effect is guaranteed; the other end of the delivery pipe 7 is connected to the water pump 6 and the liquid storage box 5 for pumping in and out the balancing liquid.

[0044] Furthermore, the bladder 2 is a bellows-type telescopic structure and / or other telescopic structure 201 that can be axially extended or contracted. It is suitable for injecting an appropriate amount of weighting liquid according to the weight of wet clothes. When the dehydration function is completed, the weighting liquid is extracted, which has little impact on the washing or dehydration process.

[0045] Preferably, the washing tub comprises an outer tub and an inner tub, and the tub cavity 1 is formed in the inner tub;

[0046] Further preferably, the capsule 2 is detachably arranged on the inner bottom wall of the inner tube to facilitate updating and cleaning.

[0047] Furthermore, the present application also realizes the injection and discharge of the balancing liquid in the cavity of the capsule by rotating the shaft.

[0048] As one embodiment, the inner drum is connected to a rotating shaft 3, which is a hollow shaft; a liquid inlet is provided on the lower wall of the drum body 2; the clothing processing device is provided with an infusion pipe, which extends from the outside of the inner drum into the inner drum along the hollow shaft and is sealed with the liquid inlet 203.

[0049] As another embodiment, one end of the rotating shaft 3 is sealed with the liquid inlet 203 ; the shaft opening at the other end of the rotating shaft 3 is connected to the delivery pipe 7 , and the other end of the delivery pipe 7 is connected to the liquid storage box 5 .

[0050] Preferably, the rotating shaft 3 is an integral structure with the laundry treatment tub 9. The inner wall of the shaft opening of the rotating shaft 3 is a connectable wall surface for connecting with the delivery pipe 7, and a rotary sealing portion 4 is provided at the gap fitting of the connection.

[0051] Specifically, the rotary seal 4 includes, from inside to outside, a small sealing ring 401, a bearing 402, and a large sealing ring 403. The bearing 402 is located in the middle of the clearance fit. The small sealing ring 401 is located axially inward of the bearing 402, close to the capsule, and located between the outer wall of the delivery tube 7 and the inner wall of the rotating shaft 3. The large sealing ring 403 is located axially outward of the bearing 402, close to the delivery tube 7, and located between the outer wall of the delivery tube 7 and the inner wall of the rotating shaft 3. By rotating the rotary seal 4, the present application can conveniently achieve a rotary seal.

[0052] Of course, in order to enable the present application to extract the amount of counterweight liquid in the capsule, a water pump 6 is provided between the shaft opening of the rotating shaft 3 and the liquid storage box 5 for extracting the counterweight liquid.

[0053] Example 2

[0054] Taking the clothes processing device with dehydration function in Example 1 as an example, a control method embodiment is provided;

[0055] like Figure 5 As shown, when the drum washing machine finishes washing clothes and starts the dehydration program, the washing machine starts to control the rotation of the drum cavity 1 through the control system, weighs the wet clothes 8, and analyzes the eccentricity value of the clothes 8 at the same time, and calculates the weight of the balancing liquid that needs to be replenished based on the eccentricity value. The controller controls the start of the water pump 6 to extract the balancing liquid from the liquid storage box 5, and enters the capsule 2 through the delivery pipe 7 and the rotating shaft 3. At this time, the capsule 2 stretches axially. After the calculated amount of balancing liquid is replenished, dehydration begins, the drum cavity 1 rotates and gradually increases the speed. When the speed of the drum cavity 1 gradually increases, if the eccentricity is large and the dehydration cannot be normal, the rotation of the drum cavity 1 is stopped, and the eccentricity value is re-measured and analyzed and the balancing liquid is adjusted, and the speed is gradually increased again for dehydration; when the speed of the drum cavity 1 reaches the normal value, the dehydration program is started. During normal dehydration, the control system determines whether the drum cavity 1 starts to slow down. If the dehydration program is not completed, dehydration continues and waits for the next judgment. If the dehydration function is completed, the drum cavity 1 starts to slow down. When the speed of the clothing processing drum 9 drops below the normal value, the water pump 6 starts to work and extracts the balancing liquid in the bladder 2 into the liquid storage box 5 for storage. The water pump 6 stops working and the drum cavity 1 stops rotating at this time. There is no need to wait until the clothing processing drum 9 stops completely before extracting the balancing liquid, so as to reduce the time of the complete process.

[0056] Another advantage of the present invention is that there is no need to wait until the clothes processing drum 9 stops completely before extracting the balancing liquid. Instead, when the dehydration function is completed, the drum cavity 1 starts to slow down. When the speed of the clothes processing drum 9 drops below the normal value, the water pump 6 starts to work immediately to extract the balancing liquid in the bladder 2 and store it in the liquid storage box 5. The water pump 6 stops working and the drum cavity 1 stops rotating at this time; the entire process is completed, saving the time for transporting the balancing liquid to the liquid storage box 5 separately, thereby saving the time of the entire process.

[0057] Example 3

[0058] This embodiment also takes embodiment 1 as an example, and describes an embodiment of a method for measuring eccentricity:

[0059] First, gradually accelerate and maintain an initial eccentricity value at 100 rpm for 3 seconds to detect it. Based on the initial eccentricity value, determine whether this speed can be sustained for a certain time. If not, decelerate to 0 rpm and stop for 3-6 seconds. Then start the next test according to the eccentricity detection conditions. If it can be sustained, determine the stable eccentricity value.

[0060] The way to analyze the eccentricity value is to analyze the data obtained from the rotation angle, acceleration and other parameters when the drum starts to rotate. Therefore, the eccentricity value data is obtained after the drum rotates and then calculated and the balancing liquid is added.

[0061] First, several sets of parameters are entered in advance into the database of the washing machine: the eccentricity is, for example, in steps of 100g, (0g, 100g], (100g, 200g], (200, 300g], ..., (1400, 1500g], each eccentricity range corresponds to a different motor parameter (current or power), and the eccentricity value p0, p1, p2, ..., p15 is edited through each motor parameter. Each eccentricity value needs to be experimentally determined to determine the weight of the balancing liquid to be added g1, g2, g3, ..., g15. These three parameters are used to determine the weight of the balancing liquid to be added. The parameters (eccentricity, eccentricity value, and weight of added balancing liquid) are measured and matched internally during the washing machine's production process, and stored in a database. The eccentricity value is then measured by comparing the motor parameters (current or power) under different loads with those under an empty drum. The database is then read to determine the amount of balancing liquid required to achieve the current eccentricity value, and the balancing liquid is then added. Adding balancing liquid after rotation adjusts the weight of the balancing liquid as the eccentricity value changes. This adjustment method is more practical, as after adjustment, normal dehydration will occur as long as the eccentricity value is kept low.

[0062] The control system includes a processor, memory, data bus, input / output interface, and communication interface. When judging whether dehydration is completed, the processor (CPU) reads the storage area output to determine whether the current dehydration time has reached the preset time (3 to 6 minutes). If it reaches the set value, the CPU sends an instruction to the chip of the drive motor, and the instruction chip controls the drive motor to slow down, so that the drive motor gradually slows down to 0 revolutions; if the set time has not been reached, it continues to wait, and the CPU determines whether the set time has been reached next time.

[0063] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0064] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A clothes processing device with a dehydration function, characterized in that: The laundry processing device comprises: A clothes processing drum (9), the interior of which forms a drum cavity (1); A capsule (2) is laid on the bottom of the cylindrical cavity (1); The capsule (2) is a retractable elastic body having a hollow capsule cavity; a weight liquid is sealed in the capsule cavity of the capsule (2), and the weight liquid can be controlled to fill or extract the capsule cavity to make the capsule (2) expand or contract.

2. The clothes processing device with a dehydration function according to claim 1, characterized in that: The capsule (2) is flat, and has an upper wall and a lower wall facing each other, and a side wall arranged between the upper wall and the lower wall; the lower wall has a shape adapted to the bottom of the barrel cavity (1); the side wall has a shape adapted to the inner wall of the barrel cavity (1) of the laundry treatment barrel (9); and the upper wall is formed with a protruding auxiliary washing structure (10) on the side facing the barrel cavity (1).

3. The clothes processing device with a dehydration function according to claim 1, characterized in that: The laundry treatment drum (9) comprises an outer drum and an inner drum, the drum cavity (1) is formed in the inner drum, and the capsule (2) is detachably arranged on the inner bottom wall of the inner drum.

4. The clothes processing device with a dehydration function according to claim 3, characterized in that: The lower wall of the capsule (2) is provided with a liquid inlet (203); The inner cylinder is connected to a rotating shaft (3), and the rotating shaft (3) is a hollow shaft; The clothing processing device is provided with a liquid infusion pipeline, which extends from the outside of the inner cylinder into the inner cylinder along the rotating shaft (3) and is sealedly connected to the liquid inlet (203).

5. The clothes processing device with dehydration function according to claim 4, characterized in that: The lower wall of the capsule (2) is provided with a liquid inlet (203); The inner cylinder is connected to a rotating shaft (3), the rotating shaft (3) is a hollow shaft, and one end of the rotating shaft (3) is sealed and fitted with the liquid inlet (203); The shaft opening at the other end of the rotating shaft (3) is connected to the delivery pipe (7), and the other end of the delivery pipe (7) is connected to the liquid storage box (5).

6. The clothes processing device with dehydration function according to claim 5, characterized in that: The rotating shaft (3) and the clothes processing drum (9) are an integrated structure.

7. The clothes processing device with a dehydration function according to claim 5, characterized in that: The inner wall of the shaft opening of the rotating shaft (3) is a connectable wall surface, which is used to connect with the delivery pipe (7), and a rotary sealing portion (4) is provided at the gap fitting of the connection.

8. The clothes processing device with dehydration function according to claim 7, characterized in that: The rotary sealing portion (4) comprises, from the inside to the outside, a small sealing ring (401), a bearing (402) and a large sealing ring (403); The bearing (402) is arranged at a middle position of the clearance fit; The small sealing ring (401) is arranged on the inner side of the bearing (402) in the axial direction, close to the capsule, and located between the outer wall of the delivery tube (7) and the inner wall of the rotating shaft (3); The large sealing ring (403) is arranged on the axially outer side of the bearing (402) close to the delivery pipe (7), and is located between the outer wall of the delivery pipe (7) and the inner wall of the rotating shaft (3).

9. The clothes processing device with a dehydration function according to claim 5, characterized in that: A water pump (6) is provided between the shaft opening of the rotating shaft (3) and the liquid storage box (5) for extracting the counterweight liquid.

10. The clothes processing device with dehydration function according to claim 2, characterized in that: The side wall of the capsule (2) is a corrugated telescopic structure and / or other telescopic structure.

11. The clothes processing device with a dehydration function according to claim 3, characterized in that: The fitting surface between the capsule (2) and the barrel cavity (1) is provided with a raised buckle (202), and the buckle (202) is embedded in a corresponding fitting hole on the bottom wall of the barrel cavity (1); Used to be fixed to the bottom wall of the cylindrical cavity (1).

Images