Chassis assembly and air conditioner

Abstract

The chassis assembly comprises a chassis and a wind wheel, a wind wheel cavity is formed in the chassis, the wind wheel cavity is provided with two end walls and a peripheral wall, the two end walls are oppositely arranged in the axial direction, and the peripheral wall is connected between the two end walls. Each of the two axial ends of the peripheral wall is provided with a first stop wall and a second stop wall which are sequentially arranged in the circumferential direction, at least one stop rib is arranged on each first stop wall in a protruding mode so that a water storage space can be defined by the stop ribs and the first stop walls, the two axial ends of the wind wheel can be rotationally matched with the two installation parts respectively, and the wind wheel and the peripheral wall are arranged in a spaced mode in the radial direction. The wind wheel comprises two end plates and an impeller connected between the two end plates, the end plates are opposite to the first stop wall and the second stop wall in the radial direction, and the radial distance between the end plates and the second stop wall is smaller than the radial distance between the end plates and the stop ribs. Therefore, the safety of the wind wheel is improved conveniently, and the water storage amount of the chassis is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning technical field especially is related to a bottom disc assembly and air conditioner. BACKGROUND

[0002] In the related art, the air duct is usually sealed to prevent cold air and hot air from mixing in the air duct, but due to assembly and other reasons, complete sealing cannot be achieved, and in some scenarios, condensation water may still be blown out of the air conditioner from the air duct. When the fan wheel falls, the fan wheel collides with the air conditioner bottom disc, which may easily damage the fan blades. SUMMARY

[0003] The utility model discloses at least one of the technical problems existing in the prior art is solved. To this end, the utility model provides a bottom disc assembly and air conditioner, the radial distance between the end plate and the second stop wall is less than the radial distance between the end plate and the stop rib, so that when the fan wheel falls, the end plate first contacts the second stop wall, which facilitates improving the safety and reliability of the fan wheel, and the stop rib and the first stop wall define a water storage space, which facilitates increasing the water storage capacity of the bottom disc.

[0004] According to the bottom disc assembly of the utility model first aspect embodiment, including: bottom disc and fan wheel, the bottom disc has a fan wheel cavity, the fan wheel cavity has two end walls and a peripheral wall, the two end walls are oppositely arranged along the axial direction, each end wall has a mounting portion respectively, the peripheral wall is connected between the two end walls, each end of the peripheral wall has a first stop wall and a second stop wall arranged in sequence along the circumferential direction, the second stop wall is arranged adjacent to one end of the peripheral wall relative to the first stop wall, at least one stop rib is protruded on the first stop wall, so that the stop rib and the first stop wall define a water storage space, the fan wheel is arranged in the fan wheel cavity, the axial two ends of the fan wheel are rotatably connected with the two mounting portions respectively, and the fan wheel is radially spaced apart from the peripheral wall, the fan wheel includes two end plates and an impeller connected between the two end plates, the end plate is radially opposite to the first stop wall and the second stop wall, and the radial distance between the end plate and the second stop wall is less than the radial distance between the end plate and the stop rib.

[0005] According to the bottom disc assembly of the utility model embodiment, the end plate of the fan wheel is radially opposite to the first stop wall and the second stop wall, and the radial distance between the end plate and the second stop wall is less than the radial distance between the end plate and the stop rib, so that when the fan wheel falls, the end plate can first contact the second stop wall, effectively reducing the risk of damage to the impeller, the stop rib and the first stop wall define a water storage space, and at least part of the condensation water generated in the fan wheel cavity can be stored in the water storage space, so as to reduce the probability of blowing out of the condensation water in the fan wheel cavity in some scenarios, and facilitate increasing the water storage capacity of the bottom disc.

[0006] In some embodiments, the first stop wall and the second stop wall are directly connected to the corresponding end wall.

[0007] In some embodiments, the plurality of stop ribs comprises a plurality of first stop ribs and a second stop rib, the plurality of first stop ribs are spaced apart along the circumferential direction, each of the first stop ribs extends in the axial direction to connect with the corresponding end wall, and the second stop rib is arranged at an end edge of the first stop wall away from the corresponding end wall and extends along the circumferential direction, the second stop rib is connected with and spaced apart from the first stop ribs.

[0008] In some embodiments, the protruding height of the second stop rib is greater than or equal to the protruding height of the first stop rib.

[0009] In some embodiments, the protruding height of the first stop rib is h1, the protruding height of the second stop rib is h2, 0.5mm≤h1≤1mm, and 1.5mm≤h2≤2mm.

[0010] In some embodiments, the peripheral wall further comprises a duct wall connected between the two first stop walls, and a radial distance between the duct wall and the impeller is greater than a radial distance between the first stop wall and the impeller.

[0011] In some embodiments, the chassis assembly is configured to satisfy at least one of the following conditions: an axial width of the first stop wall is x, 10mm≤x≤15mm; a radial distance between the first stop wall and the end plate is y, 5mm≤y≤6mm; a protruding height of the stop rib is h, 0.5mm≤h≤2mm; and a radial distance between the end plate and the second stop wall is y2, 3.5mm≤y2≤4mm.

[0012] In some embodiments, the chassis further comprises a water collecting groove for collecting condensed water on the heat exchanger, the water collecting groove extends annularly and is spaced around the outer side of the impeller cavity, the water collecting groove has at least one water outlet, and the water outlet is spaced apart from the end wall and the peripheral wall.

[0013] In some embodiments, each end wall is provided with a water outlet on a side facing away from the other end wall; and / or, the chassis assembly further comprises a water outlet pipe and a thermal insulation layer, the water outlet pipe is arranged at the water outlet and adjacent to the first stop wall, and the thermal insulation layer is arranged on a groove bottom wall of the water collecting groove and faces away from the groove opening of the water collecting groove.

[0014] In some embodiments, the back side of the first stop wall protrudes from the groove bottom wall of the water collecting groove, and the thermal insulation layer is arranged away from the back side of the first stop wall.

[0015] The air conditioner according to the second aspect of the present application comprises the chassis assembly according to the first aspect of the present application.

[0016] The air conditioner according to the present application adopts the above chassis assembly, so that the stability of the air conditioner in operation is improved.

[0017] In some embodiments, the air conditioner is an air conditioner hanging machine, the air wheel is a cross-flow air wheel, at least part of the first stop wall is located directly below the air wheel, the second stop wall is located in front of the first stop wall, and in the up-down direction, the second stop wall is higher than at least part of the first stop wall.

[0018] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the appended drawings.

[0020] Figure 1 is a schematic view of a chassis assembly according to one embodiment of the present application;

[0021] Figure 2 is Figure 1 the E-E sectional view shown in FIG. 1;

[0022] Figure 3 is Figure 2 the enlarged view of A circled in FIG. 1;

[0023] Figure 4 is Figure 1 another schematic view of the chassis assembly shown in FIG. 1;

[0024] Figure 5 is Figure 4 the enlarged view of B circled in FIG. 1;

[0025] Figure 6 is Figure 1 a schematic view of a chassis according to one embodiment of the present application;

[0026] Figure 7 is Figure 6 the enlarged view of E circled in FIG. 1;

[0027] Figure 8 is Figure 1 a further schematic view of the chassis assembly shown in FIG. 1;

[0028] Figure 9 is Figure 8 the A-A sectional view shown in FIG. 1;

[0029] Figure 10 is Figure 8 the B-B sectional view shown in FIG. 1;

[0030] Figure 11 is Figure 8 the C-C sectional view shown in FIG. 1;

[0031] Figure 12 is Figure 8 a D-D cross-sectional view as shown in FIG. 1;

[0032] Figure 13 is Figure 1 another schematic view of the chassis assembly as shown in FIG. 1;

[0033] Figure 14 is Figure 13 a magnified view of C as shown in FIG. 1;

[0034] Figure 15 is Figure 1 another schematic view of the chassis assembly as shown in FIG. 1;

[0035] Figure 16 is Figure 15 a magnified view of D as shown in FIG. 1.

[0036] Reference Signs:

[0037] chassis assembly 1, chassis 10, wind wheel cavity 12, end wall 13, mounting portion 130, peripheral wall 14, first stop wall 140, stop rib 141, first stop rib 1410, second stop rib 1412, water storage space 142, sub water storage space 1420, second stop wall 143, air duct wall 144, wind wheel 20, end plate 22, middle end plate 23, impeller 24, water collecting groove 30, groove opening 31, groove bottom wall 32, heat exchanger 33, water outlet 34, water outlet throat 36, thermal insulation layer 38. DETAILED DESCRIPTION

[0038] Embodiments of the present application are described in detail below with reference to the attached drawing figures, wherein the same or like reference numerals and characters in the drawings and the following description denote the same or similar functions. The embodiments described below are merely exemplary for the purposes of explanation and are not intended to limit the present application in any manner. Further, the described embodiments are provided for the purpose of illustration and description only and are not intended to exhaust the scope of the present application.

[0039] The disclosure provided below presents many different embodiments or examples of implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are merely examples and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and in itself does not indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but those skilled in the art can realize the applicability of other processes and / or the use of other materials.

[0040] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0041] Hereinafter, with reference to the accompanying drawings, a chassis assembly 1 according to a first aspect embodiment of the present invention will be described.

[0042] like Figures 1-7 As shown, according to a first aspect embodiment of the present invention, the chassis assembly 1 includes: a chassis 10 and a wind turbine 20. The chassis 10 has a wind turbine cavity 12, which has two end walls 13 and a peripheral wall 14. The two end walls 13 are arranged opposite each other along the axial direction, and each end wall 13 has a mounting portion 130. The peripheral wall 14 is connected between the two end walls 13. Each of the two axial ends of the peripheral wall 14 has a first stop wall 140 and a second stop wall 143 arranged sequentially along the circumferential direction. The second stop wall 143 is arranged adjacent to one circumferential end of the peripheral wall 14 relative to the first stop wall 140. At least one stop rib 141 is provided on the stop wall 140 so that the stop rib 141 and the first stop wall 140 define a water storage space 142. The impeller 20 is disposed in the impeller cavity 12. The two axial ends of the impeller 20 are respectively rotatably engaged with two mounting parts 130, and the impeller 20 is radially spaced from the peripheral wall 14. The impeller 20 includes two end plates 22 and an impeller 24 connected between the two end plates 22. The end plates 22 are radially opposite to the first stop wall 140 and the second stop wall 143. The radial distance between the end plates 22 and the second stop wall 143 is less than the radial distance between the end plates 22 and the stop rib 141.

[0043] It can be understood that the wind turbine 20 has a rotation axis L. The extension direction of the rotation axis L is the axial direction of the wind turbine 20 and the axial direction of the chassis 10. The direction around the rotation axis L is the circumferential direction of the wind turbine 20 and the circumferential direction of the chassis 10. In the radial plane, the direction passing through the rotation axis L is the radial direction of the wind turbine 20 and the radial direction of the chassis 10. The radial plane is perpendicular to the rotation axis L.

[0044] It can be seen that the bottom plate 10 has the wind wheel cavity 12, which provides space for the installation of the wind wheel 20; the axial two ends of the circumferential wall 14 of the wind wheel cavity 12 each have a first stop wall 140 and a second stop wall 143 arranged in sequence in the circumferential direction, the first stop wall 140 has at least one stop rib 141 protruding therefrom, and the stop rib 141 and the first stop wall 140 define a water storage space 142, which increases the water storage capacity of the bottom plate 10. At least part of the condensation water generated in the wind wheel cavity 12 can be stored in the water storage space 142 to reduce the probability of the condensation water in the wind wheel cavity 12 being blown out in some scenarios, i.e., to reduce the probability of the condensation water generated on the end face of the wind wheel cavity 12 being blown out, thereby improving the use reliability and the use experience. For example, in the refrigeration mode of the air conditioner, the bottom plate 10 cannot completely seal the wind wheel cavity 12 due to assembly and other reasons, and the cold air in the wind wheel cavity 12 meets the hot air outside the air conditioner at the axial two ends of the wind wheel cavity 12, which is easy to generate condensation water at the axial two ends of the wind wheel cavity 12. The bottom plate 10 of the embodiment of the present application defines the water storage space 142 by the stop rib 141 and the first stop wall 140, and the condensation water can be stored in the water storage space 142 and is not easy to flow to the main air duct plane of the air duct cavity 12 to be blown out, thereby improving the use experience of the user. At the same time, compared with the second stop wall 143, the first stop wall 140 is relatively far from the circumferential one end of the circumferential wall 14, which is beneficial to further reducing the risk of the water in the water storage space 142 being blown out from the circumferential one end of the circumferential wall 14.

[0045] In addition, the axial two ends of the wind wheel 20 are respectively rotationally connected with the mounting portion 130, so that the wind wheel 20 is more stable when being installed on the bottom plate 10, and the wind wheel 20 can rotate in the air duct cavity to blow air; the wind wheel 20 is spaced apart from the circumferential wall 14, the second stop wall 143 is arranged relative to the first stop wall 140 adjacent to the circumferential one end of the circumferential wall 14, the end plate 22 of the wind wheel 20 is arranged radially opposite to the first stop wall 140 and the second stop wall 143, and the radial distance between the end plate 22 and the second stop wall 143 is less than the radial distance between the end plate 22 and the stop rib 141, so that when the wind wheel 20 falls in the direction close to the second stop wall 143 due to an extreme situation (for example, the air conditioner is vibrated during transportation), the corresponding end plate 22 first contacts the second stop wall 143 to support the wind wheel 20, thereby effectively reducing the risk of the impeller 24 being cracked or damaged, and improving the durability and safety of the bottom plate assembly 1.

[0046] The end plate 22 of the wind wheel 20 is arranged in radial opposition to the first stop wall 140 and the second stop wall 143, and the first stop wall 140 and the second stop wall 143 are arranged at least partially not in radial opposition to the wind blades (the impeller 24 in the following includes the wind blades). There is at least one longitudinal section (a plane passing through the rotation axis L), and the orthogonal projection of the end plate 22 on the longitudinal section partially overlaps the orthogonal projection of the first stop wall 140, and the orthogonal projection of the end plate 22 on the longitudinal section partially overlaps the orthogonal projection of the second stop wall 143. When the wind wheel 20 rotates, the airflow speed at this position is lower than the region where the wind blades exist, and the phenomenon of backflow is prone to occur. However, because the first stop wall 140 and the second stop wall 143 are arranged, the backflow can be effectively bounced back to the region with the wind blades by the first stop wall 140 and the second stop wall 143, thereby reducing the abnormal sound problem caused by the airflow flow direction of the chassis assembly 1, and facilitating the improvement of the user experience.

[0047] It can be understood that the subsequent processing mode of the condensed water stored in the water storage space 142 is not specifically limited in the present application. For example, the condensed water in the water storage space 142 is evaporated under the action of the airflow in the air duct, or the condensed water in the water storage space 142 is guided to a predetermined position (for example, outside the air conditioner).

[0048] As shown in Figure 1 In some embodiments, the wind wheel 20 further includes a plurality of middle end plates 23, the middle end plates 23 are located between the two end plates 22, and the two sides of the middle end plates 23 are respectively connected with the impellers 24. The addition of the plurality of middle end plates 23 makes the overall structure of the wind wheel 20 more solid, thereby improving the anti-deformation and anti-impact capabilities of the wind wheel 20. In addition, during the rotation of the wind wheel 20, the impellers 24 will be subjected to certain force and torque due to the action of the airflow. The existence of the plurality of middle end plates 23 can effectively disperse these forces and torques, thereby reducing the possibility of damage of the wind wheel 20 due to excessive local stress.

[0049] As shown in Figure 6 and Figure 7 In some embodiments, the first stop wall 140 and the second stop wall 143 are directly connected to the corresponding end wall 13. The direct connection design forms a firm support structure between the first stop wall 140, the second stop wall 143 and the end wall 13, which can effectively resist external forces or impacts, thereby facilitating the stability of the chassis 10 during operation. In addition, the omission of additional connecting parts or intermediate parts makes the structure of the chassis 10 simpler, simplifies the manufacturing process of the chassis 10, and makes the chassis 10 more easily mass-produced. At the same time, it is also conducive to appropriately reducing the distance between the end of the wind wheel 20 and the end wall 13.

[0050] As shown in Figures 4-7As shown, in some embodiments, the stop ribs 141 are multiple, and the multiple stop ribs 141 include: multiple first stop ribs 1410 and second stop ribs 1412, the multiple first stop ribs 1410 are arranged at intervals in the circumferential direction, and each first stop rib 1410 extends in the axial direction to be connected with the corresponding end wall 13, and the second stop rib 1412 is arranged at an end edge of the first stop wall 140 away from the corresponding end wall 13, and the second stop rib 1412 extends in the circumferential direction, and the second stop rib 1412 is arranged in connection with the first stop rib 1410.

[0051] It can be seen that the second stop rib 1412 is arranged at a side edge of the first stop wall 140 away from the corresponding end wall 13, and the end wall 13 connected by the second stop rib 1412 and the first stop rib 1410 together forms a water storage space 142, so that the condensed water generated in the wind wheel cavity 12 can be stored in the water storage space 142, facilitating to increase the water storage capacity of the chassis 10; the multiple first stop ribs 1410 are arranged at intervals in the circumferential direction, so as to divide the multiple water storage spaces 142 into multiple sub-water storage grooves in the circumferential direction, so that the condensed water generated in the wind wheel cavity 12 can be respectively stored in the multiple sub-water storage spaces 1420, facilitating to increase the water storage capacity of the water storage space 142, so that the condensed water is not easy to gather at the lowermost part of the water storage space 142 due to the action of gravity, causing the condensed water to overflow out of the water storage space 142, improving the reliability of the chassis assembly 1 in operation; the second stop rib 1412 is connected with the first stop rib 1410, so that the axial ends of the first stop rib 1410 are respectively connected with the corresponding end wall 13 and the second stop rib 1412, so that when the condensed water is stored in the multiple sub-water storage spaces 1420, it is not easy to leak from the gap between the first stop rib 1410 and the end wall 13 or the second stop rib 1412 to other sub-water storage spaces 1420, facilitating to improve the reliability of the chassis assembly 1, and the mutual connection of the first stop rib 1410 and the second stop rib 1412 enhances the overall structural stability of the chassis 10, so that the chassis 10 can better resist deformation and damage when subjected to external force or vibration, improving the reliability of the chassis assembly 1 in operation.

[0052] It can be understood that when the first stop rib 1410 is n, the sub-water storage space 1420 can be (n+1) or n

[0053] In other embodiments of the present application, the second stop rib 1412 is arranged at intervals with the first stop rib 1410, so that the design of the mold can be more simplified, without considering the complex structure or precision requirement brought by the close fit of the two ribs, facilitating the processing and manufacturing of the chassis 10.

[0054] As Figures 8-12As shown, in some embodiments, the protruding height of the second stop rib 1412 is greater than or equal to the protruding height of the first stop rib 1410, and the end wall 13 connected by the second stop rib 1412 and the first stop rib 1410 forms a water storage space 142 together, so as to increase the water storage capacity of the water storage space 142, and further reduce the possibility of blowing water during the operation of the air conditioner.

[0055] In the embodiment of the present application, the protruding height of the stop rib 414 refers to the height of the stop rib 414 protruding from the first stop wall 140.

[0056] As Figures 8-12 As shown, in some embodiments, the protruding height of the first stop rib 1410 is h1, and the protruding height of the second stop rib 1412 is h2, 0.5mm≤h1≤1mm, and 1.5mm≤h2≤2mm. For example, h1 is 0.5mm, 0.65mm, 0.7mm, 0.82mm, 0.93mm, 1mm, etc., and for example, h2 is 1.5mm, 1.65mm, 1.7mm, 1.82mm, 1.93mm, 2mm, etc.

[0057] It is evident that the protrusion height of the second stop rib 1412 is greater than that of the first stop rib 1410. The first stop rib 1410 divides the water storage space 142 into multiple circumferentially spaced sub-water storage spaces 1420. When the water volume in one sub-water storage space 1420 reaches its maximum, the condensate can flow to another sub-water storage space 1420 instead of flowing directly out from the second stop rib 1412, thus improving the stability of the chassis assembly 1 during operation. When the first stop rib 1412... When the protrusion height of the first stop rib 1410 is too small (e.g., h1 < 0.5 mm), the water storage capacity of each sub-water storage space 1420 decreases, thereby reducing the water storage capacity of the water storage space 142. When the protrusion height of the first stop rib 1410 is too large (e.g., h1 > 1 mm), in order to reduce the possibility of condensate flowing directly out of each sub-water storage space 1420, the protrusion height of the second stop rib 1412 needs to be increased accordingly, so that the second stop rib 1412 occupies a certain size in the radial direction of the impeller cavity 12. The larger size of the second stop rib 1412 may affect the arrangement of other components (such as the arrangement of the impeller 20). By setting h1 in the range of 0.5mm to 1mm, each sub-water storage space 1420 has sufficient water storage capacity, while reducing the requirement for the protrusion height of the second stop rib 1412, which facilitates manufacturing. When the protrusion height of the first stop rib 1410 is too small (e.g., h2 < 1.5mm), the water storage capacity of each sub-water storage space 1420 decreases, thereby reducing the water storage capacity of the water storage space 142. When the protrusion height of the first stop rib 1410 is too large (e.g., h2 > 2mm), the second stop rib 1412 may affect the arrangement of other components (such as the arrangement of the impeller 20). By setting h2 in the range of 1.5mm to 2mm, the condensate stored in each sub-water storage space 1420 is less likely to flow out from the second stop rib 1412, while not protruding excessively and affecting the arrangement of other components.

[0058] like Figures 1-3 As shown, in some embodiments, the peripheral wall 14 further includes an air duct wall 144, which is connected between the two first stop walls 140. The radial distance between the air duct wall 144 and the impeller 20 is greater than the radial distance between the first stop wall 140 and the impeller 20.

[0059] As can be seen, the radial distance between the duct wall 144 and the impeller 20 is greater than the distance between the first stop wall 140 and the impeller 20. Therefore, the radial distance between the duct wall 144 and the impeller 20 is also greater than the distance between the second stop wall 143 and the impeller 20. This ensures that when the impeller 20 is at risk of falling, it will first contact the second stop wall 143 instead of directly colliding with the duct wall 144. This effectively reduces the risk of the impeller 24 being cracked or damaged, and facilitates the improvement of the safety of the chassis assembly 1.

[0060] like Figures 6-12As shown, in some embodiments, the chassis assembly 1 is configured to satisfy at least one of A1-A4 below:

[0061] In condition A1, the axial width of the first stop wall 140 is x, and 10 mm≤x≤15 mm. By setting the axial width of the first stop wall 140 in the range of 10 mm to 15 mm, the first stop wall 140 has sufficient structural strength to effectively resist external impact and internal pressure, thereby facilitating the reliability of the chassis assembly 1. For example, x is 10 mm, 11 mm, 11.5 mm, 12.4 mm, 13 mm, 14 mm, 14.5 mm, 15 mm, etc.

[0062] In condition A2, the radial spacing between the first stop wall 140 and the end plate 22 is y, and 5 mm≤y≤6 mm. By setting the radial spacing between the first stop wall 140 and the end plate 22 in the range of 5 mm to 6 mm, the first stop wall 140 has sufficient spacing from the wind wheel 20, so that the wind wheel 20 is less likely to directly contact the first stop wall 140 when falling, and the first stop wall 140 can fully utilize the space of the air duct cavity in the radial direction, and is less likely to affect the arrangement of other components (such as the heat preservation layer 38 described below). For example, y is 5 mm, 5.15 mm, 5.4 mm, 5.62 mm, 5.87 mm, 6 mm, etc.

[0063] In condition A3, the protruding height of the stop rib 141 is h, and 0.5 mm≤h≤2 mm. When the protruding height of the stop rib 141 is too small (for example, h<0.5 mm), the water storage space 142 is defined by the first stop wall 140 and the stop rib 141, and the water storage amount of the water storage space 142 is reduced. When the protruding height of the stop rib 141 is too large (for example, h>2 mm), the stop rib 141 can affect the arrangement of other components (such as the arrangement of the wind wheel 20). By setting h in the range of 0.5 mm to 2 mm, the water storage space 142 has a good water storage amount, and at the same time, it does not protrude too much to affect the arrangement of other components. For example, h is 0.5 mm, 0.65 mm, 0.86 mm, 1.2 mm, 1.38 mm, 1.54 mm, 1.82 mm, 2 mm, etc.

[0064] In condition A4, the radial distance between end plate 22 and second stop wall 143 is y2, where 3.5mm ≤ y2 ≤ 4mm. By setting the radial distance between second stop wall 143 and end plate 22 in the range of 3.5mm to 4mm, sufficient distance is provided between second stop wall 143 and impeller 20. During normal operation, impeller 20 is less likely to rub against second stop wall 143, causing abnormal noise. Furthermore, in the event of a fall, impeller 20 will first contact second stop wall 143, improving its safety. For example, y2 can be 3.5mm, 3.55mm, 3.64mm, 3.84mm, 3.92mm, or 4mm.

[0065] like Figure 6 and Figure 8 As shown, in some embodiments, the chassis 10 also has a water receiving trough 30 for receiving condensate from the heat exchanger 33. The water receiving trough 30 extends in an annular shape and is spaced around the open side of the impeller cavity 12. The water receiving trough 30 has at least one drain outlet 34, which is spaced apart from the end wall 13 and the peripheral wall 14.

[0066] As can be seen, the water receiving trough 30 is annular and spaced around the open side of the impeller cavity 12. The water receiving trough 30 is used to collect condensate from the heat exchanger 33. The annular arrangement of the water receiving trough 30 can expand the water receiving range of the water receiving trough 30, making it easier to reduce the direct dripping of condensate onto the outside of the chassis assembly 1, which would affect the usage environment outside the chassis assembly 1 and improve the user experience. The water receiving trough 30 has at least one drain outlet 34, through which the condensate in the water receiving trough 30 can be discharged, reducing the possibility of water accumulation in the water receiving trough 30. The drain outlet 34 is spaced apart from the end wall 13 and the peripheral wall 14, that is, the drain outlet 34 is spaced apart from the impeller cavity 12, so that the condensate in the drain outlet 34 is less likely to affect the impeller cavity 12, which is conducive to keeping the air duct cavity dry and clean, and improving the user experience.

[0067] It is understood that when the chassis assembly 1 is used in an air conditioner, the air conditioner also includes a motor cover. The motor cover is located on the open side of the impeller cavity 12 and closes a part of the open side of the impeller cavity 12. The assembly gap between the chassis 10 and the motor cover makes it easy for condensation to form at the axial end of the impeller cavity 12.

[0068] For example, the water receiving trough 30 is a closed annulus, and the impeller cavity 12 has an open side so that the impeller 20 can be installed in the impeller cavity 12 through the open side. The water receiving trough 30 is arranged around the open side of the impeller cavity 12, which facilitates increasing the water receiving range of the water receiving trough 30, so that the condensate generated by the heat exchanger 33 can be effectively received by the water receiving trough 30, reducing the possibility of condensate dripping onto the outside of the chassis assembly 1. For example, the water receiving trough 30 includes a first trough segment, a second trough segment, a third trough segment, and a fourth trough segment connected end to end. The first trough segment and the second trough segment are arranged opposite each other, and the first trough segment is located on the side of one end wall 13 away from the other end wall 13. The second trough segment is located on the side of the other end wall 13 away from the first end wall 13. The third trough segment and the fourth trough segment are arranged opposite each other, and both extend axially. Of course, the water receiving trough 30 can also be formed as an open annulus.

[0069] It should be noted that the term "ring" in this article is interpreted broadly, meaning it is not limited to "circular rings," but can also include "polygonal rings," etc. Furthermore, "ring" includes open rings (i.e., non-closed rings, such as C-shaped, U-shaped, Ω-shaped, etc.) and closed rings.

[0070] like Figure 6 and Figure 8 As shown, in some embodiments, each end wall 13 has a drain outlet 34 on the side opposite to the other end wall 13, that is, both ends of the chassis 10 have drain outlets 34, which makes it easy to adapt to different installation environments. For example, when the chassis 10 is installed, the installation space on one side of the chassis 10 axis may be limited. The drain outlet 34 on this side can be sealed, and the drain outlet 34 on the other side can be used for drainage, which facilitates the subsequent installation of other components and improves the applicability of the chassis assembly 1. And / or, the chassis assembly 1 also includes a water outlet 36 and an insulation layer 38. The water outlet 36 is located at the drain outlet 34, so that the condensate from the drain outlet 34 can be discharged through the water outlet 36. The water outlet 36 is located near the first stop wall 140, which makes the layout of the chassis assembly 1 more compact. The insulation layer 38 is covered on the bottom wall 32 of the water receiving tank 30 and is located opposite to the opening 31 of the water receiving tank 30. The insulation layer 38 can effectively isolate the heat exchange between the back side of the bottom wall 32 of the water receiving tank 30 and the external environment of the chassis assembly 1, reduce the possibility of condensate forming on the back side of the chassis 10, and improve the user experience.

[0071] like Figures 13-16 As shown, in some embodiments, the back side of the first stop wall 140 protrudes from the bottom wall 32 of the water receiving tank 30, and the heat insulation layer 38 is provided in a way that avoids the back side of the first stop wall 140.

[0072] It can be seen that the back side of the first stop wall 140 protrudes from the groove bottom wall 32 of the water collecting groove 30, the back side space of the water collecting groove 30 can be effectively utilized, the occupied space of the first stop wall 140 in the wind wheel cavity 12 is reduced, and the first stop wall 140 is less likely to affect the installation of the wind wheel 20; the thermal insulation layer 38 is arranged to avoid the back side of the first stop wall 140, and the thermal insulation layer 38 also has a protruding part corresponding to the position of the back side of the first stop wall 140 protruding from the groove bottom wall 32, so that the thermal insulation layer 38 can effectively isolate the heat exchange between the first stop wall 140 and the external environment of the bottom pan assembly 1, and the possibility of condensate water generated outside the bottom pan assembly 1 is reduced.

[0073] According to the air conditioner of the second aspect of the present application, the bottom pan assembly 1 is used, and the stability of the air conditioner in operation is improved.

[0074] According to the air conditioner of the second aspect of the present application, the bottom pan assembly 1 is used, and the stability of the air conditioner in operation is improved.

[0075] It can be understood that the type of the air conditioner of the embodiment of the present application is not limited, and can be a vehicle-mounted air conditioner, and can also be an all-in-one air conditioner or a split air conditioner. The all-in-one air conditioner can include a window air conditioner or a mobile air conditioner, and the split air conditioner can include an air conditioner hanging machine or an air conditioner cabinet machine.

[0076] As shown in FIG. 1, in some embodiments, the air conditioner is a hanging air conditioner, the wind wheel 20 is a cross-flow wind wheel, and at least part of the first stop wall 140 is located directly below the wind wheel 20. Figures 1-7 It can be seen that the air conditioner is a hanging air conditioner, the bottom pan assembly 1 is used, the reliability of the hanging air conditioner in operation and the user experience are improved; the wind wheel 20 is a cross-flow wind wheel, the cross-flow wind wheel has the characteristics of low noise and high efficiency, and the user experience when using the hanging air conditioner is improved; at least part of the first stop wall 140 is located directly below the wind wheel 20, so that the condensate water can naturally gather in the water storage space 142 formed by the first stop wall 140 under the action of gravity; the second stop wall 143 is located on the front side of the first stop wall 140, and in the up-down direction, the second stop wall 143 is higher than at least part of the first stop wall 140, so that when the wind wheel 20 falls downward, the end plate 22 of the wind wheel 20 can first contact the second stop wall 143, and the risk of the impeller 24 being cracked or damaged is reduced.

[0077]

[0078] ​In addition, it should be noted that various technical features described in the above embodiments can be combined in any suitable manner, without contradiction. To avoid unnecessary repetition, various possible combinations are not described again in the present application. In addition, various embodiments of the present application can also be combined in any manner, as long as they do not deviate from the idea of the present application, and should be considered as disclosed in the present application.

[0079] In the description of the present application, it should be understood that the terms "center", "transverse", "length", "thickness", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the features limited as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more. In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0080] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0081] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A chassis assembly, characterized in that, include: The chassis has a wind turbine cavity, which has two end walls and a peripheral wall. The two end walls are arranged opposite each other along the axial direction, and each end wall has a mounting part. The peripheral wall is connected between the two end walls. Each of the two ends of the peripheral wall has a first stop wall and a second stop wall arranged sequentially along the circumference. The second stop wall is arranged adjacent to one end of the peripheral wall along the circumference direction relative to the first stop wall. At least one stop rib is protruding on the first stop wall so that the stop rib and the first stop wall define a water storage space. The impeller is disposed in the impeller cavity. The two mounting parts at the two ends of the impeller are rotatably engaged. The impeller is radially spaced from the peripheral wall. The impeller includes two end plates and an impeller connected between the two end plates. The end plates are radially opposite to the first stop wall and the second stop wall. The radial distance between the end plate and the second stop wall is less than the radial distance between the end plate and the stop rib.

2. The chassis assembly according to claim 1, characterized in that, Both the first stop wall and the second stop wall are directly connected to the corresponding end wall.

3. The chassis assembly according to claim 2, characterized in that, The stop ribs are multiple, and the multiple stop ribs include: Multiple first stop ribs are provided at circumferential intervals, and each first stop rib extends axially to connect with the corresponding end wall. The second stop rib is located at the edge of the first stop wall away from the corresponding end wall and extends circumferentially. The second stop rib is connected to or spaced apart from the first stop rib.

4. The chassis assembly according to claim 3, characterized in that, The protrusion height of the second stop rib is greater than or equal to the protrusion height of the first stop rib.

5. The chassis assembly according to claim 4, characterized in that, The protrusion height of the first stop rib is h1, and the protrusion height of the second stop rib is h2, where 0.5mm≤h1≤1mm and 1.5mm≤h2≤2mm.

6. The chassis assembly according to claim 1, characterized in that, The peripheral wall also includes an air duct wall, which is connected between the two first stop walls. The radial distance between the air duct wall and the wind turbine is greater than the radial distance between the first stop wall and the wind turbine.

7. The chassis assembly according to claim 1, characterized in that, The chassis assembly is configured to satisfy at least one of the following conditions: The axial width of the first stop wall is x, 10mm≤x≤15mm; The radial distance between the first stop wall and the end plate is y, 5mm≤y≤6mm; The protrusion height of the stop rib is h, where 0.5mm ≤ h ≤ 2mm; The radial distance between the end plate and the second stop wall is y2, where 3.5mm≤y2≤4mm.

8. The chassis assembly according to any one of claims 1-7, characterized in that, The chassis also has a water receiving trough for receiving condensate from the heat exchanger. The water receiving trough extends in a ring shape and is spaced around the open side of the impeller cavity. The water receiving trough has at least one drain outlet, which is spaced apart from the end wall and the peripheral wall.

9. The chassis assembly according to claim 8, characterized in that, Each of the end walls has a drain outlet on the side facing away from the other end wall; and / or, The chassis assembly also includes a water outlet and an insulation layer. The water outlet is located at the drain outlet and is adjacent to the first stop wall. The insulation layer covers the bottom wall of the water receiving tank and is positioned opposite to the opening of the water receiving tank.

10. The chassis assembly according to claim 9, characterized in that, The back side of the first stop wall protrudes from the bottom wall of the water receiving tank, and the heat insulation layer is provided outside the back side of the first stop wall.

11. An air conditioner, characterized in that, Includes the chassis assembly according to any one of claims 1-10.

12. The air conditioner according to claim 11, characterized in that, The air conditioner is a wall-mounted air conditioner, the impeller is a cross-flow impeller, at least a portion of the first stop wall is located directly below the impeller, the second stop wall is located in front of the first stop wall, and in the vertical direction, the second stop wall is higher than the at least portion of the first stop wall.

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