Electric control box, motor assembly and household appliance

Abstract

The utility model provides an electric control box, a motor assembly and a household appliance. The electric control box comprises a box body, the box body comprises a bottom wall and a side wall, the bottom wall and the side wall define a mounting cavity, and an opening is formed in the side, opposite to the bottom wall, of the mounting cavity; the electric control board is arranged in the mounting cavity, a power device is arranged on the electric control board, and the power device abuts against the inner surface of the bottom wall; the radiator comprises a substrate and a cooling fin, the substrate abuts against the side, away from the power device, of the electric control board, the cooling fin is connected to the side, away from the electric control board, of the substrate, and at least one part of the cooling fin extends out of the box body through the opening. According to the electric control box, through limiting the matching structure of the box body, the electric control board, the power device and the radiator, the box body and the radiator are combined to dissipate heat of the electric control board and the power device in multiple modes, so that heat generated by working of the electric control board and the power device can be effectively dissipated by the shell and the radiator, the temperature rise of the electric control box can be reduced, and the service life of the electric control box is prolonged. And the temperature of the electric control board and the radiator is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to an electric control box, a motor assembly and a household appliance. Background Art

[0002] Currently, the heat dissipation design of electronic control boxes has received increasing attention, as temperature rise is a key factor restricting electronic control performance, reliability and cost.

[0003] In related art, an electrical control box includes a housing, an electrical control board, and power devices. The electrical control board and power devices are both located within the housing, with the power devices mounted on the electrical control board. The housing is equipped with heat dissipation vents to dissipate heat from the electrical control board and power devices. Power devices generate significant heat during operation, and dissipating heat solely through the heat dissipation vents cannot effectively meet the heat dissipation requirements of the electrical control board and power devices, thus affecting the performance of the electrical control box. Utility Model Content

[0004] This application aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] To this end, a first aspect of the present application provides an electric control box.

[0006] A second aspect of the present application provides a motor assembly.

[0007] A third aspect of the present application provides a household appliance.

[0008] In view of this, the first aspect of the present application provides an electrical control box, comprising: a box body, the box body comprising a bottom wall and side walls, the bottom wall and the side walls are arranged to form an installation cavity, and an opening is provided on the side of the installation cavity opposite to the bottom wall; an electrical control board, arranged in the installation cavity, the electrical control board is provided with a power device, the power device is abutted against the inner surface of the bottom wall; a radiator, the radiator comprising a substrate and a heat sink, the substrate abuts against the side of the electrical control board facing away from the power device, the heat sink is connected to the side of the substrate facing away from the electrical control board, and at least a portion of the heat sink extends out of the box body through the opening.

[0009] The present application provides an electric control box comprising a box body, an electric control board and a radiator, wherein the electric control board is provided with a power device.

[0010] The box body comprises a bottom wall and side walls, and the bottom wall and the side walls are arranged to form an installation cavity. An opening is arranged on a side of the installation cavity opposite to the bottom wall.

[0011] The electric control board and the power device are both located in the mounting cavity, and the radiator is located in the box body. That is, the box body serves as a mounting carrier for the electric control board, the power device and the radiator, and has the function of mounting and fixing the electric control board, the power device and the radiator.

[0012] The power device abuts against the inner surface of the bottom wall of the box body, shortening the distance between the power device and the box body. Heat generated by the power device and the electronic control board can be immediately conducted out of the electronic control box through the box body, thereby achieving heat dissipation for the power device.

[0013] That is to say, the housing not only has the function of installing and fixing the electronic control board, power devices and radiator, but also has the function of dissipating heat from the electronic control board and power devices.

[0014] The heat sink includes a base plate and a heat sink. The base plate abuts the side of the electronic control board facing away from the power devices. The heat sink is connected to the side of the base plate facing away from the electronic control board, with at least a portion of the heat sink extending out of the box through the opening. The heat sink is used to exchange heat with the electronic control board and the power devices. In other words, the heat sink can dissipate the heat generated by the electronic control board and the power devices out of the electronic control box, thereby dissipating heat from the electronic control board and the power devices.

[0015] The present application defines the matching structure of the box body, the electronic control board, the power device and the radiator, so that the box body and the radiator both have the function of dissipating heat for the electronic control board and the power device. The box body and the radiator are combined to dissipate heat for the electronic control board and the power device in a variety of ways, so that the heat generated by the operation of the electronic control board and the power device can be effectively dissipated by the shell and the radiator, which can reduce the temperature rise of the electronic control box, ensure the temperature at the electronic control board and the radiator, and ensure the performance of the electronic control box.

[0016] Furthermore, the radiator includes fins, at least a portion of which protrudes from the housing through the opening. That is, a portion of the fins protrude from the housing through the opening, or the entire fin protrudes from the housing through the opening. This arrangement increases the heat exchange area of the radiator, thereby improving the heat dissipation effect of the radiator and, in turn, the heat dissipation efficiency of the electronic control box.

[0017] In addition, at least a portion of the heat sink extends out of the box body through the opening. This ensures the heat dissipation effect of the radiator while reducing the overall dimensions of the box body and the material input of the box body, thereby reducing the production cost of the electric control box.

[0018] Furthermore, the substrate of the heat sink abuts against the side of the electric control board facing away from the power device, that is, the electric control board is located between the heat sink and the power device.

[0019] It is understandable that the radiator is closer to the electronic control board, so the heat generated by the electronic control board is mostly dissipated through the radiator. Because the radiator is close to the electronic control board, the gap between the radiator and the electronic control board is reduced, so that the heat generated by the electronic control board can be dissipated immediately, ensuring the heat dissipation efficiency of the electronic control box.

[0020] When the heat generated by the power device during operation is relatively small, the heat can be directly dissipated through the housing that abuts against the power device.

[0021] When the heat generated by the power device during operation is large, part of the heat can be directly dissipated through the housing that abuts against the power device, and the other part of the heat can be dissipated through the radiator.

[0022] The electric control box described above in this application may also have the following additional technical features:

[0023] In some embodiments, optionally, the outer surface of the bottom wall is provided with heat dissipation ribs, and the heat dissipation ribs are arranged opposite to the power device.

[0024] In this embodiment, the matching structure between the box body and the power device is further defined.

[0025] The outer surface of the bottom wall of the box is equipped with heat dissipation ribs, which are positioned opposite the power devices. These ribs increase the heat exchange area of the housing, improving the heat dissipation effect of the housing on the power devices and enhancing the heat dissipation efficiency of the electronic control box. Heat generated by the power devices is dissipated into the environment through the radiator, housing, and heat dissipation ribs, thereby achieving a larger heat dissipation area and better heat dissipation effect.

[0026] In some embodiments, optionally, there are multiple heat dissipation ribs, and the multiple heat dissipation ribs are arranged in parallel and at intervals.

[0027] In this embodiment, the number and arrangement positions of the heat dissipation ribs are further defined.

[0028] There are multiple heat dissipation ribs, which are arranged in parallel and at intervals. This arrangement can increase the heat exchange area with the power device and the electronic control board, and can improve the heat dissipation efficiency of the electronic control box.

[0029] In addition, multiple heat dissipation ribs are arranged in parallel and at intervals, which can achieve better natural convection heat dissipation effect.

[0030] In some embodiments, optionally, the box body and the heat dissipation ribs are an integrated structure; the box body is a plastic box and / or a metal box, and the heat dissipation ribs are plastic ribs and / or metal ribs.

[0031] In this embodiment, the structures of the box body and the heat dissipation ribs are further defined.

[0032] The housing and heat dissipation ribs are an integrated structure. This structure simplifies the molding process of the housing and heat dissipation ribs by eliminating the assembly process, which helps improve product processing efficiency. In addition, the integrated structure of the housing and heat dissipation ribs ensures the dimensional accuracy of the product.

[0033] Optionally, the box body is a plastic box.

[0034] Optionally, the box body is a metal box.

[0035] Optionally, the heat dissipation ribs are plastic ribs.

[0036] Optionally, the heat dissipation ribs are metal ribs.

[0037] In some embodiments, optionally, there are multiple heat sinks, and the multiple heat sinks are arranged in parallel and at intervals on the same side of the electric control board.

[0038] In this embodiment, the number and arrangement positions of the heat sinks are further defined.

[0039] There are multiple heat sinks, and the multiple heat sinks are arranged in parallel and at intervals on the same side of the electric control board.

[0040] This arrangement can increase the heat exchange area between the radiator and the power device and the electronic control board, and can improve the heat dissipation efficiency of the electronic control box.

[0041] In addition, multiple heat sinks are arranged in parallel and at intervals, which can achieve better natural convection heat dissipation effect.

[0042] In some embodiments, optionally, at least one through hole is provided on the side wall of the box body, and the through hole is connected to the installation cavity.

[0043] In this embodiment, the structure of the box body is further defined as follows: at least one through hole is provided on the side wall of the box body, and each through hole is connected to the installation cavity.

[0044] The heat in the installation cavity can flow out of the box body through at least one through hole. The at least one through hole of the box body cooperates with the radiator to enhance the heat dissipation efficiency of the electronic control box, which can ensure the temperature rise of the electronic control box and is conducive to extending the service life of the electronic control board and power devices.

[0045] In some embodiments, optionally, the electric control board is provided with at least one via hole, and the via hole is located at the power device.

[0046] In this embodiment, the structure of the electric control board is further defined.

[0047] Specifically, the electronic control board is provided with at least one via hole, which is located at the power device. The via hole can transfer the heat generated by the power device to the radiator, which is beneficial to accelerate the heat dissipation efficiency of the power device and improve the heat dissipation efficiency of the electronic control box.

[0048] In some embodiments, optionally, a positioning structure is provided in the box body, the positioning structure abuts the electric control board, and the positioning structure and the power device are located on the same side of the electric control board; wherein, along the electric control board to the power device, the height of the positioning structure is greater than or equal to the height of the power device.

[0049] In this embodiment, the matching structure of the box body, the electric control board and the power device is further defined.

[0050] The box body is provided with a positioning structure, which is connected to the inner surface of the box body and abuts against the electric control board. In other words, the positioning structure is supported below the electric control board and has the function of supporting and fixing the electric control board.

[0051] The positioning structure and the power device are located on the same side of the electronic control board, and the height of the positioning structure from the electronic control board to the power device is greater than or equal to the height of the power device. This arrangement ensures that the distance from the electronic control board to the inner surface of the box body, which abuts the power device, is greater than or equal to the height of the power device. This provides sufficient installation space for the power device, preventing it from being squeezed and thus protecting it from damage.

[0052] In other words, this arrangement enables the positioning structure to not only have the function of installing and fixing the electric control board, but also have the function of protecting the power devices, thereby enriching the performance of the positioning structure.

[0053] In some embodiments, optionally, the electric control box further includes: a heat-conducting layer, the heat-conducting layer is located between the power device and the inner surface of the box body, and / or the heat-conducting layer is located between the electric control board and the power device.

[0054] In this embodiment, the structure of the electric control box is further defined.

[0055] The electric control box also includes a heat conductive layer.

[0056] The heat conducting layer is located between the power device and the inner surface of the box body.

[0057] Alternatively, the heat conducting layer is located between the electronic control board and the power device.

[0058] Alternatively, a portion of the heat-conducting layer is located between the power device and the inner surface of the box body, and another portion of the heat-conducting layer is located between the electronic control board and the power device.

[0059] The heat-conducting layer includes at least one of thermal grease, thermal adhesive and thermal pad.

[0060] The heat conducting layer has the function of conducting heat, so that the heat generated by the electronic control board and power devices can be quickly conducted to the box body and the radiator through the heat conducting layer, which is beneficial to accelerate the heat dissipation and improve the heat dissipation efficiency of the electronic control box.

[0061] In some embodiments, optionally, the electric control box further includes: a sealing portion, which is provided in the installation cavity, and is used to cover the electric control board and the power device.

[0062] In this embodiment, the structure of the electric control box is further defined so that the electric control box further includes a sealing portion.

[0063] Optionally, the sealing portion includes a sealant filled into the mounting cavity to cover the electronic control board and power devices. This sealant isolates the electronic control board and power devices from moisture, dirt, and other impurities in the environment, preventing them from entering the electronic control board and power devices. This ensures the dryness and cleanliness of the electronic control board and power devices, providing structural support for their normal and safe operation.

[0064] In some embodiments, optionally, the electric control box further includes: an assembly portion, the assembly portion is connected to the side wall of the box body, and the assembly portion is located on the opening side of the box body, and the assembly portion is used to install the electric control box on the motor.

[0065] In this embodiment, the structure of the electric control box is further defined.

[0066] The electric control box also includes an assembly portion, which is connected to the side wall of the box body and is located on the opening side of the box body. The assembly portion is used for installing and positioning the box body. Specifically, the assembly portion is used to install the electric control box on the motor.

[0067] That is, after the electric control box is assembled with the motor, the assembly portion and the components of the motor are detachably connected. In other words, the box body is connected with the motor through the assembly portion to achieve the installation and fixation of the electric control box.

[0068] In some embodiments, optionally, a portion of the side wall of the box body is bent to form a flange, and the assembly portion is connected to the flange; a reinforcing rib is provided outside the box body, and the reinforcing rib connects the flange and the assembly portion.

[0069] In this embodiment, the structure of the box body is further defined.

[0070] A portion of the side wall of the box body is bent to form a flange, and the assembly portion is connected to the flange. The flange not only meets the use requirements of connecting the assembly portion to the side wall of the box body, but also allows the assembly portion to be away from the opening of the box body, thus providing avoidance space for the assembly portion and the motor to be assembled, meeting the assembly requirements.

[0071] Furthermore, reinforcing ribs are provided on the outside of the box body, which connect the flange and the assembly part. This arrangement enhances the structural strength of the connection between the box body and the assembly part, can effectively support the assembly part, can reduce the deformation of the box body, and can improve the performance of the product.

[0072] A second aspect of the present application provides a motor assembly, comprising: a motor; and an electric control box as in the first aspect, wherein the motor and the assembly portion of the electric control box are detachably connected.

[0073] The motor assembly provided in the present application includes the electric control box as in the first aspect, and therefore has all the beneficial effects of the above-mentioned electric control box, which will not be described one by one here.

[0074] A third aspect of the present application provides a household appliance, comprising: a motor assembly as in the second aspect.

[0075] The household appliance provided in the present application includes the motor assembly as in the second aspect, and therefore has all the beneficial effects of the above-mentioned motor assembly, which will not be described one by one here.

[0076] Additional aspects and advantages of the present application will become apparent in the following description or may be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0077] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0078] Figure 1 A schematic structural diagram of an electric control box according to an embodiment of the present application from a first perspective is shown;

[0079] Figure 2 A schematic structural diagram of an electric control box from a second perspective of an embodiment of the present application is shown;

[0080] Figure 3 A partial structural diagram of an electric control box according to an embodiment of the present application is shown;

[0081] Figure 4 A schematic structural diagram of a motor assembly according to an embodiment of the present application is shown.

[0082] in, Figures 1 to 4 The corresponding relationship between the reference numerals and component names is as follows:

[0083] 10 electronic control box, 100 box body, 110 opening, 120 mounting cavity, 130 heat dissipation ribs, 140 through-holes, 150 positioning structure, 160 reinforcing ribs, 170 bottom wall, 180 side wall, 182 flange, 200 electronic control board, 210 through-holes, 300 power devices, 400 radiator, 410 heat sink, 420 substrate, 500 thermal conductive layer, 600 sealing part, 700 assembly part, 80 motor assembly, 800 motor. DETAILED DESCRIPTION

[0084] In order to more clearly understand the above-mentioned objects, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other in the absence of conflict.

[0085] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0086] Refer to the following Figures 1 to 4 According to some embodiments of the present application, the electric control box 10, the motor assembly 80 and the household appliance.

[0087] like Figure 1 、 Figure 2 and Figure 3 As shown, an electric control box 10 according to some embodiments of the present application includes: a box body 100, the box body 100 includes a bottom wall 170 and a side wall 180, the bottom wall 170 and the side wall 180 are arranged to form an installation cavity 120, and an opening 110 is provided on the side of the installation cavity 120 opposite to the bottom wall 170; an electric control board 200 is arranged in the installation cavity 120, and a power device 300 is provided on the electric control board 200, and the power device 300 abuts against the inner surface of the bottom wall 170; a heat sink 400, the heat sink 400 includes a substrate 420 and a heat sink 410, the substrate 420 abuts against the side of the electric control board 200 away from the power device 300, the heat sink 410 is connected to the side of the substrate 420 away from the electric control board 200, and at least a portion of the heat sink 410 extends out of the box body 100 through the opening 110.

[0088] The present application provides an electric control box 10 comprising a box body 100 , an electric control board 200 and a heat sink 400 , wherein the electric control board 200 is provided with a power device 300 .

[0089] The box body 100 includes a bottom wall 170 and a side wall 180 , which surround and form a mounting cavity 120 . An opening 110 is defined on a side of the mounting cavity 120 opposite to the bottom wall 170 .

[0090] The electronic control board 200 and the power device 300 are both located in the mounting cavity 120, and the heat sink 400 is provided in the box body 100. In other words, the box body 100 serves as a mounting carrier for the electronic control board 200, the power device 300, and the heat sink 400, and has the function of mounting and fixing the electronic control board 200, the power device 300, and the heat sink 400.

[0091] The power device 300 abuts against the inner surface of the bottom wall 170 of the box body 100, which shortens the distance between the power device 300 and the box body 100. The heat generated by the power device 300 and the electronic control board 200 can be immediately conducted out of the electronic control box 10 through the box body 100, thereby achieving heat dissipation for the power device 300.

[0092] That is, the housing not only has the function of installing and fixing the electric control board 200 , the power device 300 and the radiator 400 , but also has the function of dissipating heat from the electric control board 200 and the power device 300 .

[0093] The heat sink 400 includes a base plate 420 and a heat sink 410. The base plate 420 abuts against the side of the electronic control board 200 facing away from the power device 300. The heat sink 410 is connected to the side of the base plate 420 facing away from the electronic control board 200. At least a portion of the heat sink 410 extends out of the box body 100 through the opening 110. The heat sink 400 is used to exchange heat with the electronic control board 200 and the power device 300. That is, the heat sink 400 can dissipate the heat generated by the operation of the electronic control board 200 and the power device 300 outside the electronic control box 10, thereby dissipating heat from the electronic control board 200 and the power device 300.

[0094] The present application defines the matching structure of the box body 100, the electronic control board 200, the power device 300 and the radiator 400, so that the box body 100 and the radiator 400 both have the function of dissipating heat for the electronic control board 200 and the power device 300. The box body 100 and the radiator 400 are combined to dissipate heat for the electronic control board 200 and the power device 300 in a variety of ways, so that the heat generated by the operation of the electronic control board 200 and the power device 300 can be effectively dissipated by the shell and the radiator 400, which can reduce the temperature rise of the electronic control box 10, ensure the temperature at the electronic control board 200 and the radiator 400, and ensure the performance of the electronic control box 10.

[0095] Furthermore, the radiator 400 includes fins 410, at least a portion of which extends out of the housing 100 through the opening 110. That is, a portion of the fins 410 extends out of the housing 100 through the opening 110, or the entire fins 410 extend out of the housing 100 through the opening 110. This arrangement can increase the heat exchange area of the radiator 400, thereby improving the heat dissipation effect of the radiator 400 and, in turn, improving the heat dissipation efficiency of the electronic control box 10.

[0096] In addition, at least a portion of the heat sink 410 extends out of the box body 100 through the opening 110. In this way, while ensuring the heat dissipation effect of the radiator 400, the outer dimensions of the box body 100 can be reduced, and the material input of the box body 100 can be reduced, which is conducive to reducing the production cost of the electric control box 10.

[0097] Furthermore, the substrate 420 of the heat sink 400 abuts against a side of the electric control board 200 facing away from the power device 300 . That is, the electric control board 200 is located between the heat sink 400 and the power device 300 .

[0098] It is understood that the heat sink 400 is relatively close to the electronic control board 200, so that the heat generated by the electronic control board 200 during operation is largely dissipated through the heat sink 400. Because the heat sink 400 abuts the electronic control board 200, the gap between the heat sink 400 and the electronic control board 200 is reduced, allowing the heat generated by the electronic control board 200 to be dissipated immediately, thereby ensuring the heat dissipation efficiency of the electronic control box 10.

[0099] When the heat generated by the power device 300 during operation is relatively small, the heat can be directly dissipated through the housing that abuts against the power device 300 .

[0100] When the heat generated by the power device 300 during operation is large, part of the heat can be directly dissipated through the housing that abuts against the power device 300 , and the other part of the heat can be dissipated through the heat sink 400 .

[0101] In some embodiments, optionally, as Figure 1 and Figure 3 As shown, the outer surface of the bottom wall 170 is provided with heat dissipation ribs 130 .

[0102] The heat dissipation ribs 130 are arranged opposite to the power device 300 .

[0103] In this embodiment, the matching structure between the box body 100 and the power device 300 is further defined.

[0104] The outer surface of the bottom wall 170 of the housing 100 is provided with heat dissipation ribs 130, which are positioned opposite the power device 300. These ribs 130 increase the heat exchange area of the housing, thereby improving the heat dissipation effect of the housing on the power device 300 and enhancing the heat dissipation efficiency of the electrical control box 10. Heat generated by the power device 300 during operation is dissipated into the environment via the heat sink 400, the housing, and the heat dissipation ribs 130, thereby achieving a larger heat dissipation area and better heat dissipation.

[0105] In some embodiments, optionally, there are multiple heat dissipation ribs 130 .

[0106] The plurality of heat dissipation ribs 130 are arranged in parallel and at intervals.

[0107] In this embodiment, the number and arrangement positions of the heat dissipation ribs 130 are further limited.

[0108] There are multiple heat dissipation ribs 130 , which are arranged in parallel and at intervals. This arrangement can increase the heat exchange area with the power device 300 and the electric control board 200 , and can improve the heat dissipation efficiency of the electric control box 10 .

[0109] In addition, the plurality of heat dissipation ribs 130 are arranged in parallel and at intervals, which can achieve a better natural convection heat dissipation effect.

[0110] In some embodiments, optionally, the box body 100 and the heat dissipation ribs 130 are an integrated structure; the box body 100 is a plastic box and / or a metal box, and the heat dissipation ribs 130 are plastic ribs and / or metal ribs.

[0111] In this embodiment, the structures of the box body 100 and the heat dissipation ribs 130 are further defined.

[0112] The housing 100 and the heat dissipating ribs 130 are integrally formed. This configuration simplifies the molding process of the housing 100 and the heat dissipating ribs 130 by eliminating the need for assembly, thereby improving product processing efficiency. Furthermore, the integral structure of the housing 100 and the heat dissipating ribs 130 ensures product dimensional accuracy.

[0113] Optionally, the box body 100 is a plastic box.

[0114] Optionally, the box body 100 is a metal box.

[0115] Optionally, the heat dissipation ribs 130 are plastic ribs.

[0116] Optionally, the heat dissipation ribs 130 are metal ribs.

[0117] For example, the box body 100 is a plastic box, the heat dissipation ribs 130 are plastic ribs, and the box body 100 and the heat dissipation ribs 130 are integrally formed by injection molding.

[0118] For example, the box body 100 is a metal box, the heat dissipation ribs 130 are metal ribs, and the box body 100 and the heat dissipation ribs 130 are integrally cast.

[0119] For example, the box body 100 is a plastic box, the heat dissipation ribs 130 are metal ribs, the bottoms of the plurality of heat dissipation ribs 130 are connected, and the box body 100 and the heat dissipation ribs 130 are integrally formed by injection molding.

[0120] The metal ribs and the metal box can accelerate heat dissipation, which is beneficial to improving the heat dissipation efficiency of the electric control box 10.

[0121] Optionally, the plurality of heat dissipation ribs 130 are arranged at equal intervals.

[0122] Optionally, some of the heat dissipation ribs 130 are arranged at equal intervals.

[0123] Optionally, the plurality of heat dissipation ribs 130 are arranged at unequal intervals.

[0124] In some embodiments, optionally, there are multiple heat sinks 410 .

[0125] The plurality of heat sinks 410 are arranged in parallel and at intervals on the same side of the electric control board 200 .

[0126] In this embodiment, the number and arrangement positions of the heat sinks 410 are further defined.

[0127] There are multiple heat sinks 410 , which are arranged in parallel and at intervals on the same side of the electronic control board 200 .

[0128] This arrangement can increase the heat exchange area of the radiator 400 , the power device 300 , and the electric control board 200 , thereby improving the heat dissipation efficiency of the electric control box 10 .

[0129] In addition, the plurality of heat sinks 410 are arranged in parallel and at intervals, which can achieve a better natural convection heat dissipation effect.

[0130] Optionally, the plurality of heat sinks 410 are arranged at equal intervals.

[0131] Optionally, some of the heat sinks 410 are arranged at equal intervals.

[0132] Optionally, the plurality of heat sinks 410 are arranged at unequal intervals.

[0133] In some embodiments, optionally, as Figure 1 and Figure 3 As shown, at least one through hole 140 is provided on the side wall 180 of the box body 100 .

[0134] The through hole 140 is connected to the mounting cavity 120 .

[0135] In this embodiment, the structure of the box body 100 is further defined. At least one through hole 140 is provided on the side wall 180 of the box body 100 , and each through hole 140 is connected to the installation cavity 120 .

[0136] The heat in the mounting cavity 120 can flow out of the box body 100 through the at least one through hole 140. The at least one through hole 140 of the box body 100 cooperates with the heat sink 400 to enhance the heat dissipation efficiency of the electric control box 10, thereby ensuring the temperature rise of the electric control box 10 and extending the service life of the electric control board 200 and the power device 300.

[0137] In some embodiments, optionally, as Figure 3 As shown, the electric control board 200 is provided with at least one via hole 210 , and the via hole 210 is located at the power device 300 .

[0138] In this embodiment, the structure of the electric control board 200 is further defined.

[0139] Specifically, the electronic control board 200 is provided with at least one via 210, which is located at the power device 300. The via 210 can transfer the heat generated by the power device 300 to the radiator 400, which is beneficial to accelerate the heat dissipation efficiency of the power device 300 and improve the heat dissipation efficiency of the electronic control box 10.

[0140] In some embodiments, optionally, as Figure 2 and Figure 3 As shown, a positioning structure 150 is provided in the box body 100 .

[0141] The positioning structure 150 abuts against the electric control board 200 .

[0142] The positioning structure 150 and the power device 300 are located on the same side of the electric control board 200 .

[0143] Wherein, along the distance from the electric control board 200 to the power device 300 , the height of the positioning structure 150 is greater than or equal to the height of the power device 300 .

[0144] In this embodiment, the matching structure of the box body 100 , the electric control board 200 and the power device 300 is further defined.

[0145] The box body 100 is provided with a positioning structure 150, which is connected to the inner surface of the box body 100 and abuts against the electric control board 200. In other words, the positioning structure 150 is supported below the electric control board 200 and has the function of supporting and fixing the electric control board 200.

[0146] The positioning structure 150 and the power device 300 are located on the same side of the electronic control board 200, and the height of the positioning structure 150 along the distance from the electronic control board 200 to the power device 300 is greater than or equal to the height of the power device 300. This arrangement ensures that the distance from the electronic control board 200 to the inner surface of the box body 100, which abuts the power device 300, is greater than or equal to the height of the power device 300. This provides sufficient installation space for the power device 300, preventing it from being squeezed and protecting it from damage due to squeezing.

[0147] In other words, this arrangement enables the positioning structure 150 to not only install and fix the electric control board 200 , but also protect the power device 300 , thereby enriching the usability of the positioning structure 150 .

[0148] In some embodiments, optionally, as Figure 3 As shown, the electric control box 10 further includes a heat conducting layer 500 .

[0149] The heat conducting layer 500 is located between the power device 300 and the inner surface of the box body 100 .

[0150] The thermal conductive layer 500 is located between the electric control board 200 and the power device 300 .

[0151] In this embodiment, the structure of the electric control box 10 is further defined.

[0152] The electric control box 10 further includes a heat conducting layer 500 .

[0153] The heat conducting layer 500 is located between the power device 300 and the inner surface of the box body 100 .

[0154] Alternatively, the heat conducting layer 500 is located between the electric control board 200 and the power device 300 .

[0155] Alternatively, a portion of the heat-conducting layer 500 is located between the power device 300 and the inner surface of the box body 100 , and another portion of the heat-conducting layer 500 is located between the electronic control board 200 and the power device 300 .

[0156] The heat conducting layer 500 includes at least one of thermal grease, thermal adhesive and thermal pad.

[0157] The heat conducting layer 500 has the function of conducting heat, so that the heat generated by the electronic control board 200 and the power device 300 can be quickly conducted to the box body 100 and the radiator 400 through the heat conducting layer 500, which is beneficial to accelerate heat dissipation and improve the heat dissipation efficiency of the electronic control box 10.

[0158] In some embodiments, optionally, as Figure 3 As shown, the electric control box 10 further includes a sealing portion 600 .

[0159] The sealing portion 600 is disposed in the mounting cavity 120 .

[0160] The sealing portion 600 is used to cover the electric control board 200 and the power device 300 .

[0161] In this embodiment, the structure of the electric control box 10 is further limited so that the electric control box 10 further includes a sealing portion 600 .

[0162] Optionally, the sealing portion 600 includes a sealant, which is filled into the mounting cavity 120 to cover the electronic control board 200 and the power device 300. This sealant isolates the electronic control board 200 and the power device 300 from moisture, dirt, and other impurities in the environment, preventing them from entering the electronic control board 200 and the power device 300. This ensures the dryness and cleanliness of the electronic control board 200 and the power device 300, and provides structural support to ensure the normal and safe use of the electronic control board 200 and the power device 300.

[0163] In some embodiments, optionally, as Figure 3 As shown, the electric control box 10 further includes: an assembly portion 700 , which is connected to the side wall 180 of the box body 100 and is located at the opening side of the box body 100 . The assembly portion 700 is used to install the electric control box 10 on the motor 800 .

[0164] In this embodiment, the structure of the electric control box 10 is further defined.

[0165] The electric control box 10 further includes an assembly portion 700 connected to the side wall 180 of the box body 100 and located at the opening side of the box body 100 for mounting and positioning the box body 100. Specifically, the assembly portion 700 is used to mount the electric control box 10 on the motor 800.

[0166] That is, after the electric control box 10 is assembled with the motor 800, the assembly portion and the components of the motor 800 are detachably connected. In other words, the box body 100 is connected to the motor 800 via the assembly portion 700 to achieve the installation and fixation of the electric control box 10.

[0167] In this embodiment, the assembly portion 700 is a protruding structure.

[0168] In some embodiments, optionally, as Figure 1 and Figure 2 As shown, a portion of the side wall 180 of the box body 100 is bent to form a flange 182 , and the assembly portion 700 is connected to the flange 182 ; a reinforcing rib 160 is provided on the outside of the box body 100 , and the reinforcing rib 160 connects the flange 182 and the assembly portion 700 .

[0169] In this embodiment, the structure of the box body 100 is further described.

[0170] A portion of the side wall 180 of the box body 100 is bent to form a flange 182, and the assembly portion 700 is connected to the flange 182. The flange 182 not only satisfies the use requirement of connecting the assembly portion 700 to the side wall 180 of the box body 100, but also allows the assembly portion 700 to be away from the opening 110 of the box body 100, thus providing a clearance space for the assembly portion 700 and the motor 800 to be assembled, thus meeting the assembly requirements.

[0171] Furthermore, a reinforcing rib 160 is provided on the outside of the box body 100, and the reinforcing rib 160 connects the flange 182 and the assembly part 700. This arrangement enhances the structural strength of the connection between the box body 100 and the assembly part 700, can effectively support the assembly part 700, can reduce the deformation of the box body 100, and can improve the performance of the product.

[0172] like Figure 4 As shown, a motor assembly 80 according to some other embodiments of the present application includes: a motor 800; and an electric control box 10 as in any of the above embodiments, wherein the motor 800 and the assembly portion of the electric control box 10 are detachably connected.

[0173] The motor assembly 80 provided in the present application includes the electric control box 10 as in any embodiment, and therefore has all the beneficial effects of the above-mentioned electric control box 10, which will not be described one by one here.

[0174] According to some further embodiments of the present application, a household appliance includes: a motor assembly 80 as in the above embodiment.

[0175] The household appliance provided in the present application includes the motor assembly 80 as in the above embodiment, and therefore has all the beneficial effects of the above motor assembly 80, which will not be described one by one here.

[0176] Optionally, the household appliances include washing machines, refrigerators, air conditioners, etc., which are not listed here one by one.

[0177] Optionally, the electric control box 10 includes a box body 100 , wherein the box body 100 is formed with a mounting cavity 120 , and an opening 110 is provided on the box body 100 , wherein the opening 110 is connected to the mounting cavity 120 .

[0178] Optionally, the electric control box 10 includes an electric control board 200 , which is located in the installation cavity 120 . A power device 300 is provided on the electric control board 200 and welded to the electric control board 200 . The power device 300 is close to the inner surface of the box body 100 .

[0179] Optionally, the electrical control box 10 includes a heat sink 400, which includes a base plate and a plurality of heat sinks 410. The heat sinks 410 are connected to the same side of the base plate. The side of the base plate facing away from the heat sinks 410 is connected to the electrical control board 200. At least a portion of the heat sink 410 extends outside the box body 100 through the opening 110.

[0180] Both the power device 300 and the electronic control board 200 have components for conducting heat. For example, the heat conducting components of the power device 300 include a box body 100 that abuts against the power device 300, and the heat conducting components of the power device 300 also include a heat sink 400. For example, the heat conducting components of the electronic control board 200 also include a heat sink 400.

[0181] When the heat generated by the power device 300 during operation is relatively small, the heat can be directly dissipated through the housing that abuts against the power device 300 .

[0182] When the power device 300 generates a large amount of heat during operation, part of the heat can be dissipated directly through the housing that abuts against the power device 300 , and the other part of the heat can be dissipated through the radiator 400 . This arrangement can improve the heat dissipation effect of the electric control box 10 .

[0183] Optionally, the heat sink 400 is fixed to the electric control board 200 by fasteners or welding. The heat sink 400 can be better fixed to the electric control board 200 and improve the heat dissipation effect of the heat sink 400 on the power device 300.

[0184] Optionally, a plurality of heat sinks 410 are arranged in parallel along the vertical direction. The heat sinks 410 have a better natural convection heat dissipation effect.

[0185] Optionally, the electrical control box 10 further includes a plurality of heat dissipation ribs 130, which are convex on the outer surface of the box body 100. Heat from the power device 300 can be dissipated to the environment through both the heat sink 400 on the electrical control board 200 side and the heat dissipation ribs 130, thereby achieving a larger heat dissipation area and better heat dissipation effect.

[0186] Optionally, the box body 100 and the heat dissipation ribs 130 are both made of plastic, and the box body 100 and the heat dissipation ribs 130 are integrally manufactured using an injection molding process.

[0187] Optionally, the box body 100 and the heat dissipation ribs 130 are both made of metal, and the box body 100 and the heat dissipation ribs 130 are integrally manufactured using a casting process.

[0188] Optionally, the box body 100 is made of plastic, the heat dissipation ribs 130 are made of metal, the bottoms of the plurality of heat dissipation ribs 130 are connected, and the box body 100 and the heat dissipation ribs 130 are manufactured using an integral injection molding process.

[0189] Optionally, a plurality of heat dissipation ribs 130 are arranged in parallel along the vertical direction. The heat dissipation ribs 130 have a better natural convection heat dissipation effect.

[0190] Optionally, the box body 100 is provided with at least one through hole 140, which connects the installation cavity 120 with the outside of the box body 100. The hot air in the installation cavity 120 can be better discharged to the external environment through the at least one through hole 140, and is not easily accumulated in the installation cavity 120 of the box body 100.

[0191] Optionally, the electronic control board 200 is provided with at least one via 210, which is used to conduct heat generated by the power device 300 to the heat sink 400. The via 210 conducts heat generated by the power device 300 to the heat sink 400, forming a heat transfer path through the electronic control board 200.

[0192] Optionally, at least one positioning structure 150 is provided inside the box body 100 , and the electric control board 200 is placed on the positioning structure 150 . The height of the positioning structure 150 is greater than or equal to the thickness of the power device 300 .

[0193] Optionally, thermal grease, thermal adhesive or thermal pad is provided between the power device 300 and the inner surface of the box body 100 .

[0194] Optionally, thermal grease, thermal adhesive or thermal pad is provided between the electronic control board 200 and the radiator 400 .

[0195] Optionally, potting compound is poured into the mounting cavity 120, and the potting compound wraps the electric control board 200 and the power device 300. The sealing portion 600 includes the potting compound.

[0196] Optionally, the box body 100 is provided with an assembly portion 700 , and the assembly portion 700 is used to connect with the motor 800 .

[0197] The electric control box 10 includes a box body 100 , an electric control board 200 and a heat sink 400 . The electric control board 200 is provided with a power device 300 .

[0198] An opening 110 is defined on the box body 100 , and an installation cavity 120 is defined inside the box body 100 . The installation cavity 120 is communicated with the opening 110 .

[0199] The electronic control board 200 and the power device 300 are both located in the mounting cavity 120, and the heat sink 400 is provided in the box body 100. In other words, the box body 100 serves as a mounting carrier for the electronic control board 200, the power device 300, and the heat sink 400, and has the function of mounting and fixing the electronic control board 200, the power device 300, and the heat sink 400.

[0200] The power device 300 abuts against the inner surface of the box body 100, which shortens the distance between the power device 300 and the box body 100. The heat generated by the power device 300 and the electronic control board 200 can be immediately conducted out of the electronic control box 10 through the box body 100, thereby achieving heat dissipation for the power device 300.

[0201] That is, the housing not only has the function of installing and fixing the electric control board 200 , the power device 300 and the radiator 400 , but also has the function of dissipating heat from the electric control board 200 and the power device 300 .

[0202] The heat sink 400 is used to exchange heat with the electric control board 200 and the power device 300. That is, the heat sink 400 can dissipate the heat generated by the electric control board 200 and the power device 300 outside the electric control box 10 to dissipate heat for the electric control board 200 and the power device 300.

[0203] The present application defines the matching structure of the box body 100, the electronic control board 200, the power device 300 and the radiator 400, so that the box body 100 and the radiator 400 both have the function of dissipating heat for the electronic control board 200 and the power device 300. The box body 100 and the radiator 400 are combined to dissipate heat for the electronic control board 200 and the power device 300 in a variety of ways, so that the heat generated by the operation of the electronic control board 200 and the power device 300 can be effectively dissipated by the shell and the radiator 400, which can reduce the temperature rise of the electronic control box 10, ensure the temperature at the electronic control board 200 and the radiator 400, and ensure the performance of the electronic control box 10.

[0204] Furthermore, the radiator 400 includes fins 410, at least a portion of which extends out of the housing 100 through the opening 110. That is, a portion of the fins 410 extends out of the housing 100 through the opening 110, or the entire fins 410 extend out of the housing 100 through the opening 110. This arrangement can increase the heat exchange area of the radiator 400, thereby improving the heat dissipation effect of the radiator 400 and, in turn, improving the heat dissipation efficiency of the electronic control box 10.

[0205] In addition, at least a portion of the heat sink 410 extends out of the box body 100 through the opening 110. In this way, while ensuring the heat dissipation effect of the radiator 400, the outer dimensions of the box body 100 can be reduced, and the material input of the box body 100 can be reduced, which is conducive to reducing the production cost of the electric control box 10.

[0206] In this application, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean fixed, removable, or integrally connected; and "connected" can mean directly or indirectly through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0207] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means 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 application. In this specification, the schematic representation 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 a suitable manner in any one or more embodiments or examples. The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An electric control box, characterized in that: include: A box body, the box body comprising a bottom wall and side walls, the bottom wall and the side walls enclosing a mounting cavity, the mounting cavity being provided with an opening on a side opposite to the bottom wall; An electric control board is disposed in the mounting cavity, and a power device is disposed on the electric control board, and the power device abuts against the inner surface of the bottom wall; The radiator includes a substrate and a heat sink, wherein the substrate abuts against the side of the electric control board away from the power device, the heat sink is connected to the side of the substrate away from the electric control board, and at least a portion of the heat sink extends out of the box body through the opening.

2. The electric control box according to claim 1, characterized in that: The outer surface of the bottom wall is provided with heat dissipation ribs, and the heat dissipation ribs are arranged opposite to the power device.

3. The electric control box according to claim 2, characterized in that: The box body and the heat dissipation ribs are an integrated structure; The box body is a plastic box and / or a metal box, and the heat dissipation ribs are plastic ribs and / or metal ribs.

4. The electric control box according to any one of claims 1 to 3, characterized in that: At least one through hole is provided on the side wall of the box body, and the through hole is connected to the installation cavity.

5. The electric control box according to any one of claims 1 to 3, characterized in that: The electric control board is provided with at least one via hole, and the via hole is located at the power device.

6. The electric control box according to any one of claims 1 to 3, characterized in that: A positioning structure is provided in the box body, the positioning structure abuts against the electric control board, and the positioning structure and the power device are located on the same side of the electric control board; Wherein, along the distance from the electric control board to the power device, the height of the positioning structure is greater than or equal to the height of the power device.

7. The electric control box according to any one of claims 1 to 3, characterized in that: Also includes: A heat-conducting layer is located between the power device and the inner surface of the box body, and / or the heat-conducting layer is located between the electric control board and the power device.

8. The electric control box according to any one of claims 1 to 3, characterized in that: Also includes: A sealing portion is provided in the installation cavity, and is used for covering the electric control board and the power device.

9. The electric control box according to any one of claims 1 to 3, characterized in that: Also includes: An assembly portion is connected to the side wall of the box body and is located at the opening side of the box body. The assembly portion is used to install the electric control box on the motor.

10. The electric control box according to claim 9, characterized in that: A portion of the side wall of the box body is bent to form a flange, and the assembly portion is connected to the flange; The box body is provided with a reinforcing rib connecting the flange and the assembly portion.

11. A motor assembly, characterized in that: include: Motor; and According to any one of claims 1 to 10, the motor is detachably connected to the assembly portion of the electric control box.

12. A household appliance, characterized in that: include: The motor assembly of claim 11.

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