Controller shell for compressor and compressor

Abstract

The utility model provides a controller shell for a compressor and the compressor with the controller shell. The controller shell comprises a partition plate, wherein the partition plate comprises a first surface and a second surface which are opposite; the controller shell wall is formed on the first surface, and a controller cavity is defined by the controller shell wall and the partition plate; and the end cover shell wall is formed on the second surface, a heat dissipation cavity is defined by the end cover shell wall and the partition plate, at least one annular part is arranged in the heat dissipation cavity, each annular part is fixedly connected with the second surface and protrudes outwards by a preset height, and the annular parts are spaced from one another in the radial direction. According to the technical scheme, the problem that the performance of the compressor is affected due to the fact that the controller of the compressor in the prior art emits too much heat is solved.

Description

Technical Field

[0001] The utility model relates to the field of compressors, and specifically provides a controller housing for a compressor and a compressor. Background Art

[0002] The compressor is a kind of equipment widely used in refrigeration, air conditioning, air compression and other fields. During operation, the compressor will generate a lot of heat. If the heat is not dissipated in time, it will affect the normal operation of the equipment and even cause damage to the equipment.

[0003] There are many electronic components with high heat generation in the compressor controller, such as IGBT, MCU, etc. Among them, IGBT (insulated gate bipolar transistor) is a high-efficiency semiconductor device widely used in power electronics technology. In the compressor, IGBT is mainly used to drive and control the operation of the motor. Since IGBT generates a lot of heat during operation, a heat dissipation structure is required to dissipate the heat. In the current heat dissipation method, the heat dissipation area of ​​the IGBT component is small, and it is impossible to absorb the heat conducted outward by the IGBT component, resulting in low heat dissipation efficiency.

[0004] Therefore, this field needs a new technical solution to solve the above problems. Utility Model Content

[0005] In order to solve the problem in the prior art that the compressor controller generates excessive heat and affects the compressor performance, the utility model provides a controller housing for the compressor. The controller housing comprises: a partition, the partition comprises a first surface and a second surface opposite to each other; a controller housing wall, the controller housing wall is formed on the first surface and forms a controller chamber with the partition; and an end cover housing wall, the end cover housing wall is formed on the second surface and forms a heat dissipation chamber with the partition, at least one annular portion is provided in the heat dissipation chamber, each annular portion is fixedly connected to the second surface and protrudes outward by a predetermined height, and each annular portion is radially spaced apart from each other.

[0006] The utility model divides the space on the controller housing into two parts by a partition, so that the controller housing can realize more functions. The controller housing wall is formed on the first surface and encloses a controller chamber with the partition, and the controller chamber is suitable for accommodating a predetermined device. Through the above-mentioned arrangement, the controller electronic components used to control the actions of various components of the compressor can be arranged in the controller chamber to achieve individual separation from other components, facilitate sealing treatment, and be dustproof and waterproof. The end cover housing wall is formed on the second surface and encloses a heat dissipation chamber with the partition. Through the arrangement of the heat dissipation chamber, part of the heat in the controller chamber can be transferred to the heat dissipation chamber through the partition. At least one annular portion is provided in the heat dissipation chamber, each of which is fixedly connected to the second surface and protrudes outwardly by a predetermined height, and each annular portion is radially spaced from each other. Through the above-mentioned arrangement, the annular portion is fixedly connected to the second surface, and it is easier to extract the heat in the controller chamber through the partition. The annular portion protrudes outwardly by a predetermined height to increase the heat dissipation area. At least one annular portion is arranged at intervals, so that the heat in the controller chamber is more evenly extracted.

[0007] In the preferred technical solution of the controller housing for the compressor, at least one annular portion includes a plurality of annular portions, and the height of each annular portion increases from the inside to the outside in the radial direction. When the heat dissipation chamber is filled with gas and the gas performs convection heat exchange with the plurality of annular portions, the above arrangement ensures that most of the gas can perform heat exchange with the annular portion arranged on the inner side in the radial direction, which is more conducive to the heat extraction from the center of the controller chamber.

[0008] In the preferred technical solution of the controller housing for the compressor, a sleeve is provided in the heat dissipation chamber, the sleeve is fixedly connected to the second surface and is suitable for accommodating the motor shaft of the compressor, and each annular portion surrounds the outer side of the sleeve. Through the above arrangement, the controller housing can also serve as the end cover of the motor in the compressor, so that the compressor using the controller housing of the utility model has a higher degree of integration.

[0009] In the preferred technical solution of the controller housing for the compressor, at least one reinforcing rib is further provided on the second surface, each reinforcing rib extending between adjacent annular portions or between the annular portion and the end cover shell wall. The above configuration improves the strength of the annular portion.

[0010] In the preferred technical solution of the controller housing for the compressor, the height of each reinforcing rib is lower than the height of the annular portion. When the gas participates in the heat exchange in the heat dissipation chamber, the reinforcing rib is prevented from blocking the gas flow in the flow channel formed by the adjacent annular portions through the above configuration.

[0011] In the preferred technical solution of the controller housing for the compressor, the second surface has a heat dissipation area and a component installation area, both of which are located on the inner side of the end cover shell wall, and the annular portion is arranged on the heat dissipation area; an interface suitable for forming an electrical connection with the motor in the compressor is arranged on the component installation area. Through the above configuration, the heat dissipation area and the component installation area are distinguished, and the space inside the heat dissipation chamber is further reasonably divided. The component installation area arranged on the second surface makes the distance between the interface and the motor closer, thereby improving the integration of the compressor using the controller housing.

[0012] In order to solve the problem in the prior art that the controller of the compressor generates excessive heat and affects the performance of the compressor, the utility model also provides a compressor. The utility model compressor includes the controller housing and the compressor housing for the compressor in the above-mentioned preferred technical solution, the compressor housing and the controller housing are fixedly connected, a compression chamber is formed in the compressor housing, the compression chamber is connected to the heat dissipation chamber, an air inlet is formed on the compressor housing, the air inlet is connected to the heat dissipation chamber, and when the compressor is in working state, the refrigerant is suitable for flowing into from the air inlet and flowing through the heat dissipation chamber and the compression chamber in sequence. Through the above configuration, the compressor of the utility model can use the refrigerant to be compressed to absorb the heat in the controller chamber, so that the electronic components in the controller chamber can be maintained within a reasonable temperature range, so as to give full play to their performance.

[0013] In the preferred technical solution of the above compressor, the second surface has a heat dissipation area, the heat dissipation area has a first side edge and a second side edge spaced apart from each other, and each annular portion extends from the first side edge to the second side edge; when the compressor is in operation, the refrigerant is suitable for flowing into the heat dissipation chamber from the first side edge and flowing out of the heat dissipation chamber from the second side edge. Through the above configuration, the refrigerant can fully flow through the annular portion to take away the heat conducted to the annular portion from the controller chamber.

[0014] In the preferred technical solution of the above compressor, the heat dissipation chamber has a heat dissipation chamber inlet formed on the compressor housing, the heat dissipation chamber inlet is connected to the air inlet, the refrigerant is suitable for entering the heat dissipation chamber from the air inlet through the heat dissipation chamber inlet, and in the direction perpendicular to the second surface, the height of the heat dissipation chamber inlet is higher than the annular portion. Through the above arrangement, the refrigerant entering the heat dissipation chamber from the air inlet will not be blocked by the outermost and highest annular portion, but can enter the annular portion located on the inner side, so as to make full use of the low temperature of the refrigerant and reduce the heat conducted from the center of the controller chamber to the annular portion located on the inner side.

[0015] In the preferred technical solution of the compressor, an air inlet channel is formed between the air inlet and the heat dissipation chamber entrance, and the air inlet channel extends obliquely from the air inlet toward the second surface to the heat dissipation chamber entrance. Through the above configuration, after the refrigerant enters the heat dissipation chamber, it can fully exchange heat with the second surface and the annular portion arranged on the second surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the controller housing for a compressor of the utility model.

[0018] Figure 2 It is a partial structural schematic diagram of an embodiment of the compressor of the utility model;

[0019] Figure 3 yes Figure 2 The illustrated embodiment of the compressor of the present invention is a cross-sectional view taken at AA.

[0020] List of reference numerals:

[0021] 1. Compressor; 100. Controller housing; 10. Partition; 11. First surface; 12. Second surface; 121. Heat dissipation area; 1211. First side edge; 1212. Second side edge; 122. Component mounting area; 20. Controller housing wall; 21. Controller chamber; 22. IGBT power module; 30. End cover housing wall; 31. Heat dissipation chamber; 32. Ring portion; 321. First ring portion; 322. Second ring portion; 33. Bushing; 331. Accommodating groove; 34. Reinforcing rib; 400. Compressor housing; 41. Compression chamber; 42. Air inlet; 43. Heat dissipation chamber entrance; 44. Air inlet passage. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0023] It should be noted that, in the description of the present invention, the terms “first” and “second” are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In order to solve the problem in the prior art that the controller of the compressor is overheated and affects the performance of the compressor, the utility model provides a controller housing 100 for the compressor. The controller housing 100 includes: a partition 10, the partition 10 includes a first surface 11 and a second surface 12 opposite to each other; a controller housing wall 20, the controller housing wall 20 is formed on the first surface 11, and forms a controller chamber 21 with the partition 10; and an end cover housing wall 30, the end cover housing wall 30 is formed on the second surface 12, and forms a heat dissipation chamber 31 with the partition 10, and at least one annular portion 32 is provided in the heat dissipation chamber 31, each annular portion 32 is fixedly connected to the second surface 12 and protrudes outward by a predetermined height, and each annular portion 32 is radially spaced apart from each other.

[0026] Figure 1 1 is a schematic diagram of the structure of an embodiment of the controller housing of the compressor of the utility model. The controller housing 100 of the compressor 1 of the utility model comprises a partition 10, a controller housing wall 20 and an end cover housing wall 30. The partition 10 comprises a first surface 11 and a second surface 12 opposite to each other. Figure 1 As shown, the controller shell wall 20 is fixedly connected to the first surface 11, and the connection method includes but is not limited to integral casting or welding. The controller shell wall 20 and the partition 10 together form a controller chamber 21, and the electronic components such as the MCU and IGBT power module 22 of the compressor are arranged in the controller chamber 21. In one or more embodiments, as Figure 1 In the illustrated position, the IGBT power module 22 is disposed below the partition 10 and fixed on the first surface 11, and the heat generated by the IGBT power module 22 can be conducted to the second surface 12 through the partition 10. Alternatively, the IGBT power module 22 can also be disposed at other suitable positions in the controller chamber 21.

[0027] Figure 2 FIG. 1 is a partial structural diagram of an embodiment of the compressor of the utility model. Figure 2As shown, the end cover shell wall 30 is fixedly connected to the second surface 12, and the connection method includes but is not limited to integral casting, welding, etc. The end cover shell wall 30 and the partition 10 together form a heat dissipation chamber 31. In one or more embodiments, the heat dissipation chamber is matched with the IGBT power module and is arranged at a position below the partition 10. Alternatively, the heat dissipation chamber can also be arranged at other suitable positions of the partition to dissipate heat for the heating element arranged on the other side.

[0028] Continue reading Figure 2 , an annular portion 32 is provided in the heat dissipation chamber 31, each annular portion 32 is fixedly connected with the second surface 12 and protrudes outward by a certain height, and the connection method includes but is not limited to integral casting, welding, etc. Each annular portion 32 is roughly annular, and can be configured as a continuous circular ring or a fan ring with a gap. Through the above-mentioned arrangement, the second surface 12 in the heat dissipation chamber 31 and the surface of the protruding annular portion 32 participate in heat exchange together, thereby improving the heat dissipation efficiency. In one or more embodiments, two annular portions 32 are provided in the heat dissipation chamber 31, namely, a first annular portion 321 and a second annular portion 322. The first annular portion 321 is located radially inside the second annular portion 322 and is spaced apart from each other, thereby dividing the space in the heat dissipation chamber 31 into three flow channels, namely, a flow channel is formed radially inside the first annular portion 321, a flow channel is formed between the first annular portion 321 and the second annular portion 322, and a flow channel is formed between the second annular portion 322 and the end cover shell wall 30. Alternatively, the annular portion 32 may also be configured in other suitable numbers, such as 1, 3, 4, etc. In one or more embodiments, the number of the annular portions 32 is greater than or equal to two. These annular portions 32 are configured so that the height of the annular portions 32 increases one by one from the inside to the outside in the radial direction. It should be pointed out that the "high" and "height" appearing here and below refer to the height in the direction perpendicular to the second surface 12. Generally speaking, the edge of the controller chamber 21 close to the controller shell wall 20 dissipates heat better, while more heat accumulates in the center. Through such a configuration, when the gas participates in the heat exchange in the heat dissipation chamber 31, the annular portions 32 that can be increased one by one can confine most of the gas to the flow channel located radially inside, thereby efficiently exporting the heat at the center of the controller chamber 21.

[0029] Continue reading Figure 2 In one or more embodiments, a sleeve 33 is further provided on the second surface 12. Each annular portion 32 surrounds the sleeve 33 so that it is located at the innermost radial side of the annular portion 32, thereby preventing the sleeve 33 from blocking the convection heat exchange of the gas in the flow channel. The sleeve 33 is provided with a receiving groove 331, which is used to accommodate the motor shaft and the bearing matched with the shaft, so that the controller housing 100 can also serve as the motor end cover. Alternatively, the sleeve 33 can also be eliminated.

[0030] Continue reading Figure 2 In one or more embodiments, a plurality of reinforcing ribs 34 are further provided on the second surface 12. The reinforcing ribs 34 are used to improve the structural strength of the heat dissipation chamber 31. On the other hand, the reinforcing ribs 34 have a similar function to the annular portion 32, and increase the heat exchange area in the heat dissipation chamber 31. The reinforcing ribs 34 extend roughly along the radial direction of the annular portion, and may extend between the end cover shell wall 30 and the annular portion 32, for example, from the first annular portion 321 through the second annular portion 322 to the end cover shell wall 30. In the embodiment in which the shaft sleeve 33 is provided, the reinforcing ribs 34 may also extend from the outer wall surface of the shaft sleeve 33 through the first annular portion 321 and the second annular portion 322 to the end cover shell wall 30. Alternatively, the reinforcing ribs 34 may also be omitted.

[0031] In one or more embodiments, the height of each reinforcing rib 34 is lower than the height of the annular portion 32. When the plurality of annular portions 32 are arranged to increase in height one by one from the inside to the outside in the radial direction, the height of the reinforcing rib 34 is lower than the height of the innermost annular portion 32. Alternatively, the reinforcing rib 34 may also be arranged at other heights according to actual conditions.

[0032] Continue reading Figure 2 In one or more embodiments, the second surface 12 has a heat dissipation area 121 and a component mounting area 122. Both the heat dissipation area 121 and the component mounting area 122 are located on the inner side of the end cover shell wall 30. The annular portion 32 and the reinforcing ribs 34 are arranged on the heat dissipation area 121. In one or more embodiments, the component mounting area 122 is suitable for arranging a three-phase interface, and the IGBT power module 22 controls the motor of the compressor 1 through the three-phase interface. Alternatively, other devices suitable for forming an electrical connection with the motor or the compression component may also be arranged on the component mounting area 122. Alternatively, the partition arrangement of the heat dissipation area 121 and the component mounting area 122 may also be cancelled.

[0033] In order to solve the problem in the prior art that the controller of the compressor 1 is overheated and affects the performance of the compressor, the present invention further provides a compressor 1. The compressor 1 of the present invention can be any suitable compressor, including but not limited to a scroll compressor, a piston compressor, and a screw compressor. The compressor 1 includes a compressor housing 400 and the controller housing 100 described above. Figure 1 and Figure 2 As shown, the compressor housing 400 is fixedly connected to the controller housing 100, and the connection methods include but are not limited to screw connection, clamping connection, etc. A compression chamber 41 is formed inside the compressor housing 400, and components such as a motor and a scroll plate can be arranged in the compression chamber 41. An air inlet 42 ( Figure 1The compression chamber 41 is connected to the heat dissipation chamber 31. When the compressor 1 is in operation, the compressor 1 can draw the refrigerant discharged from its upstream components, such as from the evaporator, into the heat dissipation chamber 31 from the air inlet 42. The refrigerant is fully in contact with the second surface 12 and the annular portion 32 before being drawn into the compression chamber 41.

[0034] Continue reading Figure 2 In one or more embodiments, the second surface 12 has a heat dissipation area 121. The heat dissipation area 121 is located on the inner side of the end cover shell wall 30 and an annular portion 32 is provided on the heat dissipation area 121. The heat dissipation area 121 has a first side edge 1211 and a second side edge 1212 spaced apart from each other, and each annular portion 32 extends from the first side edge 1211 to the second side edge 1212. The air inlet 42 is arranged at the first side edge 1211, so that when the compressor 1 is in a working state, the refrigerant enters the air inlet 42 and first flows through the first side edge 1211 and then diffuses to the entire heat dissipation chamber 31. In one or more embodiments, the channel entrance connecting the heat dissipation chamber 31 and the compression chamber 41 can be arranged at the second side edge 1212, so that the refrigerant leaves the heat dissipation chamber 31 from the second side edge 1212 and enters the compression chamber 41. Alternatively, the first side edge 1211 and the second side edge 1212 can also be arranged at other suitable positions according to actual conditions.

[0035] Figure 3 yes Figure 2 The cross-sectional view of the embodiment of the compressor 1 of the utility model at AA is shown. Figure 3 As shown, the heat dissipation chamber 31 has a heat dissipation chamber inlet 43 formed on the compressor housing 400, and the heat dissipation chamber inlet 43 is connected to the air inlet 42, and the refrigerant enters the heat dissipation chamber 31 from the air inlet 42 through the heat dissipation chamber inlet 43. In one or more embodiments, in the direction perpendicular to the second surface 12, the height of the heat dissipation chamber inlet 43 is higher than the annular portion 32. When the annular portion 32 is configured to increase in height from the inside to the outside in the radial direction, the height of the heat dissipation chamber inlet 43 is higher than the outermost annular portion 32. Alternatively, the annular portion 32 and the air inlet 42 can also be configured to have other suitable height relationships according to actual conditions.

[0036] Continue reading Figure 2 and Figure 3 In one or more embodiments, an air intake passage 44 is formed between the air intake port 42 and the heat dissipation chamber inlet 43, and the air intake passage 44 extends obliquely from the air intake port 42 toward the second surface 12 to the heat dissipation chamber inlet 43, so that a predetermined angle is formed between the extension direction of the air intake passage 44 and the second surface 12. The predetermined angle can be configured to be between 0-10°, and within this range, the noise of the compressor 1 when inhaling air is relatively small. Alternatively, the air intake passage 44 can also be configured to be other suitable angles according to actual conditions.

[0037] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A controller housing for a compressor, characterized in that: The controller housing comprises: a separator including a first surface and a second surface that are opposite to each other; a controller housing wall, the controller housing wall being disposed on the first surface and enclosing a controller chamber together with the partition; and The end cover shell wall is arranged on the second surface and forms a heat dissipation chamber together with the partition. At least one annular portion is provided in the heat dissipation chamber. Each of the annular portions is fixedly connected to the second surface and protrudes outwardly to a predetermined height. Each of the annular portions is radially spaced apart from each other.

2. The controller housing for a compressor according to claim 1, characterized in that: The at least one annular portion includes a plurality of annular portions, and the height of each of the annular portions increases gradually from the inside to the outside in the radial direction.

3. The controller housing for a compressor according to claim 1, characterized in that: A shaft sleeve is provided in the heat dissipation chamber. The shaft sleeve is fixedly connected to the second surface and is suitable for accommodating a motor shaft of the compressor. Each of the annular portions surrounds the outer side of the shaft sleeve.

4. The controller housing for a compressor according to claim 1, characterized in that: At least one reinforcing rib is also provided on the second surface, and each reinforcing rib extends between adjacent annular portions or between the annular portion and the end cover shell wall.

5. The controller housing for a compressor according to claim 4, characterized in that: The height of each of the reinforcing ribs is lower than the height of the annular portion.

6. The controller housing for a compressor according to claim 1, characterized in that: The second surface has a heat dissipation area and a component installation area, both of which are located on the inner side of the end cover shell wall, and the annular portion is arranged on the heat dissipation area; An interface suitable for forming an electrical connection with the motor in the compressor is provided on the component installation area.

7. A compressor, characterized in that: The compressor comprises a controller housing for a compressor according to any one of claims 1 to 6; and A compressor housing is fixedly connected to the controller housing, a compression chamber is formed in the compressor housing, the compression chamber is communicated with the heat dissipation chamber, an air inlet is formed on the compressor housing, the air inlet is communicated with the heat dissipation chamber, when the compressor is in working state, the refrigerant is suitable for flowing into from the air inlet and flowing through the heat dissipation chamber and the compression chamber in sequence.

8. The compressor according to claim 7, characterized in that The second surface has a heat dissipation area, the heat dissipation area has a first side edge and a second side edge spaced apart from each other, and each of the annular portions extends from the first side edge to the second side edge; When the compressor is in operation, the refrigerant is suitable for flowing into the heat dissipation chamber from the first side edge and flowing out of the heat dissipation chamber from the second side edge.

9. The compressor according to claim 7, characterized in that The heat dissipation chamber has a heat dissipation chamber inlet formed on the compressor housing, and the heat dissipation chamber inlet is connected to the air inlet. The refrigerant is suitable for entering the heat dissipation chamber from the air inlet through the heat dissipation chamber inlet. In the direction perpendicular to the second surface, the height of the heat dissipation chamber inlet is higher than the annular portion.

10. The compressor according to claim 9, characterized in that An air inlet passage is formed between the air inlet and the heat dissipation chamber inlet, and the air inlet passage extends obliquely from the air inlet toward the second surface to the heat dissipation chamber inlet.

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