Compressor controller and compressor

Abstract

The utility model relates to the technical field of compressors, in particular to a compressor controller and a compressor. The compressor controller comprises a shell, a control element, a wire holder and a sealing plug. The shell is provided with an accommodating cavity and an air tightness detection hole which are communicated with each other, the control element is arranged in the accommodating cavity, and the wire holder is mounted on the shell and electrically connected with the control element; the sealing plug comprises a first limiting part, a connecting part and a second limiting part which are connected in sequence, the first limiting part is arranged in the containing cavity and abuts against the inner wall of the shell, the connecting part is arranged in the air tightness detection hole, the periphery of the connecting part abuts against the hole wall of the air tightness detection hole, and the second limiting part abuts against the outer wall of the shell. The air tightness detection hole can be directly communicated with the ventilation device, the air tightness detection efficiency of the compressor controller is improved, and the air tightness of the compressor controller is ensured through the multiple sealing structures of the sealing plug.

Description

Technical Field

[0001] This application relates to the technical field of compressors, and particularly to a compressor controller and a compressor. Background Art

[0002] The compressor controller is one of the core components of an electric compressor. To ensure the stability of the compressor operation, the airtightness of the controller is very important. If external moisture enters the controller, it will cause the control components inside the controller to short-circuit and burn out, resulting in the damage of the compressor and inability to operate in the light case, or even the leakage of electricity from the controller housing and an increased risk of electric shock in the severe case.

[0003] The controller has a high-voltage terminal block, and there is a gap reserved between the port of the high-voltage terminal block and the connection part of the wire harness. After the controller is assembled, a certain amount of dry air is usually introduced into the controller through the gap inside the high-voltage terminal block, and then the airtightness detection is realized by measuring the air pressure change inside the controller. After the detection is completed, the high-voltage connection cable is plugged into the high-voltage terminal block, and the high-voltage terminal block is sealed through the high-voltage connection cable to achieve the final sealing of the controller.

[0004] The structure of the high-voltage terminal block is complex, and a set of complex connection tools is required to achieve a sealed connection with the air pipe, resulting in a reduction in the airtightness detection efficiency of the controller. Moreover, the high-voltage terminal block and the high-voltage connection cable are prone to heat during operation, and the frequent cold and heat alternation will affect the airtightness between the high-voltage terminal block and the high-voltage connection cable, deteriorating the airtightness of the controller. Summary of the Utility Model

[0005] The embodiments of this application aim to provide a compressor controller and a compressor, which can at least improve the airtightness detection efficiency and airtightness of the compressor controller.

[0006] The embodiments of this application solve the above technical problems by adopting the following technical solutions:

[0007] In a first aspect, an embodiment of the present application provides a compressor controller, the compressor controller comprising a housing, a control element, a terminal block and a sealing plug; the housing is provided with a housing cavity and an airtightness detection hole, the airtightness detection hole being communicated with the housing cavity; the control element is arranged in the housing cavity; the terminal block is arranged in the housing, one end of the terminal block is electrically connected to the control element, and the other end of the terminal block extends to the outside of the housing; the sealing plug is detachably inserted in the airtightness detection hole, the sealing plug comprises a first limiting portion, a connecting portion and a second limiting portion connected in sequence, the outer diameter of the first limiting portion and the outer diameter of the second limiting portion are both larger than the outer diameter of the connecting portion, the first limiting portion passes through the airtightness detection hole and is arranged in the housing cavity, the first limiting portion abuts against the inner wall of the housing toward one end of the connecting portion, the connecting portion is arranged in the airtightness detection hole, the outer periphery of the connecting portion abuts against the hole wall of the airtightness detection hole, the second limiting portion is arranged outside the housing, and the second limiting portion abuts against the outer wall of the housing toward one end of the connecting portion.

[0008] In some embodiments, a first guide surface and a first limit surface are respectively provided at both ends of the first limit portion, the first guide surface is provided at an end of the first limit portion away from the connecting portion, and the first limit surface abuts against the inner wall of the shell.

[0009] In some embodiments, the connecting portion includes a first connecting segment and at least two second connecting segments, one end of the first connecting segment is connected to the second limiting portion, and the other end of the first connecting segment is respectively connected to the at least two second connecting segments, and the at least two second connecting segments are arranged at intervals; the number of the first limiting portions is the same as the number of the at least two second connecting segments, and each first limiting portion is connected to an end of a corresponding second connecting segment away from the first connecting segment.

[0010] In some embodiments, a sealing ring is further included, wherein the sealing ring is sleeved on the connecting portion and the sealing ring abuts against the hole wall of the air-tightness detection hole.

[0011] In some embodiments, the connecting portion is provided with a sealing groove, and the sealing ring is at least partially disposed in the sealing groove.

[0012] In some embodiments, the sealing plug is made of elastic material.

[0013] In some embodiments, the airtightness detection hole is provided with a second guide surface, and the second guide surface is provided at an end of the airtightness detection hole away from the accommodating cavity.

[0014] In some embodiments, the housing is further provided with a groove, one end of the airtightness detection hole facing away from the accommodation cavity communicates with the groove, and at least a part of the second limiting portion is arranged in the groove.

[0015] In some embodiments, the housing is provided with a mounting hole, the mounting hole communicates with the accommodation cavity, and the wiring seat is mounted in the mounting hole.

[0016] In a second aspect, an embodiment of the present application provides a compressor, the compressor includes a compression pump and the compressor controller as described in any one of the above, and the compressor controller is electrically connected to the compression pump.

[0017] For the compressor controller and the compressor of the embodiments of the present application, by providing an airtightness detection hole on the housing to communicate with the ventilation device, complex connection tooling is not required, which is beneficial to improving the airtightness detection efficiency of the compressor controller; after the airtightness detection is completed, the airtightness detection hole is sealed by a sealing plug, the first limiting portion and the second limiting portion respectively abut against the inner wall and the outer wall of the housing, and the airtightness detection hole is blocked by the connecting portion, and a multiple sealing structure is adopted to ensure the airtightness of the compressor controller.

[0018] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the following specifically illustrates the specific embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, unless otherwise stated, and the drawings in the drawings do not constitute a proportional limitation.

[0020] Figure 1 is a schematic structural view of a compressor controller according to an embodiment of the present application;

[0021] Figure 2 is an exploded view of a compressor controller according to an embodiment of the present application;

[0022] Figure 3 is an exploded view of the compressor controller from another perspective according to an embodiment of the present application;

[0023] Figure 4 is a cross-sectional view of the cooperation between the first housing and the sealing plug according to an embodiment of the present application;

[0024] Figure 5 is a cross-sectional view of the cooperation between the first housing and the sealing plug according to another embodiment of the present application;

[0025] Figure 6 This is a schematic structural diagram of the cooperation between a sealing plug and a sealing ring according to an embodiment of the present application.

[0026] The reference numerals in the specific embodiments are as follows:

[0027] 100, compressor controller;

[0028] 1, housing; 11, first housing; 111, accommodating cavity; 112, airtightness detection hole; 1121, second guiding surface; 113, groove; 114, mounting hole;

[0029] 12, second housing; 13, first sealing member;

[0030] 2, control element;

[0031] 3, sealing plug; 31, connecting portion; 311, sealing groove; 312, first connecting section; 313, second connecting section; 32, second limiting portion; 321, second limiting surface; 33, first limiting portion; 331, first guiding surface; 332, first limiting surface;

[0032] 4, sealing ring;

[0033] 5, terminal block; 51, insulating housing; 52, conductive bar; 53, second sealing member; 5a, high - voltage terminal block; 5b, low - voltage terminal block; 5c, output terminal block;

[0034] X, first direction. Specific Embodiments

[0035] For the convenience of understanding the present application, the present application will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. It should be noted that when an element is expressed as "fixed to" another element, it can be directly on the other element, or there can be one or more intermediate elements therebetween. When an element is expressed as "connected to" another element, it can be directly connected to the other element, or there can be one or more intermediate elements therebetween.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above - mentioned drawings are intended to cover non - exclusive inclusion.

[0037] In the description of the embodiments of the present application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present application.

[0038] In the description of the embodiments of the present application, the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Without additional statements, the above terms have no special meanings. Therefore, it should not be construed as a limitation to the protection scope of the present application. In the description of the embodiments of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0039] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not used to limit this application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0040] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0041] The embodiments of the present application provide a compressor controller 100. Please refer to Figure 1 and Figure 2, the compressor controller 100 includes a housing 1, a control element 2, a terminal block 5, and a sealing plug 3. The housing 1 is provided with a receiving cavity 111 and an airtightness detection hole 112, and the airtightness detection hole 112 communicates with the receiving cavity 111; the control element 2 is disposed in the receiving cavity 111; the terminal block 5 is disposed on the housing 1, one end of the terminal block 5 is electrically connected to the control element 2, and the other end of the terminal block 5 extends to the outside of the housing 1; the sealing plug 3 is detachably inserted into the airtightness detection hole 112, and the sealing plug 3 includes a first limiting portion 33, a connecting portion 31, and a second limiting portion 32 connected in sequence. The outer diameter of the first limiting portion 33 and the outer diameter of the second limiting portion 32 are both larger than the outer diameter of the connecting portion 31. The first limiting portion 33 passes through the airtightness detection hole 112 and is disposed in the receiving cavity 111. One end of the first limiting portion 33 facing the connecting portion 31 abuts against the inner wall of the housing 1. The connecting portion 31 is disposed in the airtightness detection hole 112, and the outer periphery of the connecting portion 31 abuts against the hole wall of the airtightness detection hole 112. The second limiting portion 32 is disposed outside the housing 1, and one end of the second limiting portion 32 facing the connecting portion 31 abuts against the outer wall of the housing 1.

[0042] Please refer to Figures 1 to 3 , the housing 1 includes a first housing 11 and a second housing 12. The second housing 12 and the first housing 11 jointly enclose to form the receiving cavity 111, and the first housing 11 and the second housing 12 are detachably connected.

[0043] Furthermore, a first sealing member 13 is disposed between the second housing 12 and the first housing 11 to seal and connect the second housing 12 and the first housing 11, enhancing the airtightness of the receiving cavity 111.

[0044] Furthermore, the housing 1 is provided with a mounting hole 114, and the mounting hole 114 communicates with the receiving cavity 111. The terminal block 5 is mounted in the mounting hole 114. Specifically, the mounting hole 114 is disposed on the first housing 11 to facilitate the installation of the terminal block 5. It can be understood that in some other embodiments, the mounting hole 114 can also be disposed on the second housing 12, or the mounting hole 114 can also be disposed at the connection between the first housing 11 and the second housing 12, which is not limited herein.

[0045] The control element 2 includes a circuit board and electronic components. The electronic components are mounted on the circuit board, and the electronic components are connected to the terminal block 5 through wires.

[0046] The terminal block 5 includes an insulating housing 51 and a conductive row 52. The insulating housing 51 passes through the mounting hole 114, and the outer periphery of the insulating housing 51 abuts against the hole wall of the mounting hole 114. The conductive row 52 passes through the insulating housing 51. One end of the conductive row 52 is electrically connected to the control element 2, and the other end of the conductive row 52 extends to the outside of the housing 1.

[0047] Further, a second seal 53 is provided between the terminal block 5 and the first housing 11, so that the terminal block 5 and the first housing 11 are sealingly connected to enhance the airtightness of the accommodation cavity 111.

[0048] In this embodiment, the number of terminal blocks 5 is three. The three terminal blocks include a high-voltage terminal block 5a, a low-voltage terminal block 5b, and an output terminal block 5c. It should be noted that the high-voltage terminal block 5a, the low-voltage terminal block 5b, and the output terminal block 5c can be set to the same structure or different structures according to requirements, which are not limited herein. It can be understood that in some other embodiments, the number of terminal blocks 5 can be set according to actual needs, such as one, two, or four, which are not limited herein.

[0049] Please refer to Figure 4 , the first limiting portion 33 is frustum-shaped. A first guiding surface 331 and a first limiting surface 332 are respectively provided at two ends of the first limiting portion 33. The first guiding surface 331 is provided at an end of the first limiting portion 33 away from the connecting portion 31, and the first limiting surface 332 abuts against the inner wall of the outer shell 1. The first guiding surface 331 is used to receive a reaction force toward the central axis of the airtightness detection hole 112 when contacting the inner wall of the airtightness detection hole 112, so that the first limiting portion 33 contracts and deforms and at least partially passes through the airtightness detection hole 112. After the first limiting portion 33 passes through the airtightness detection hole 112, the first limiting portion 33 resumes deformation, and the first limiting surface 332 abuts against the inner wall of the outer shell 1 to prevent the sealing plug 3 from being pulled out of the airtightness detection hole 112. It can be understood that the angle between the first guiding surface 331 and the first direction X is an obtuse angle. For example, the first guiding surface 331 is a chamfer between the outer peripheral surface of the first limiting portion 33 and the end surface toward the first direction X. Thus, when the first limiting portion 33 presses the outer shell 1 along the first direction X, the first guiding surface 331 receives a component force opposite to the first direction X and a component force toward the central axis of the airtightness detection hole 112, that is, the first guiding surface 331 receives a reaction force toward the central axis of the airtightness detection hole 112, making it easier for the first limiting portion 33 to penetrate into the airtightness detection hole 112.

[0050] The second limiting portion 32 is disc-shaped. A second limiting surface 321 is provided on a side of the second limiting portion 32 facing the connecting portion 31. The middle of the second limiting surface 321 is connected to the connecting portion 31, and the edge of the second limiting surface 321 abuts against the outer wall of the outer shell 1. The edge of the second limiting surface 321 can be in sealing contact with the edge of the airtightness detection hole 112 to enhance the sealing effect of the sealing plug 3 on the airtightness detection hole 112.

[0051] The connecting portion 31 is columnar, and the shape of the connecting portion 31 is adapted to the shape of the airtightness detection hole 112. The outer periphery of the connecting portion 31 fits against the hole wall of the airtightness detection hole 112 to seal the airtightness detection hole 112. Among them, the axial length of the connecting portion 31 is the same as the axial length of the airtightness detection hole 112, and the outer diameter of the connecting portion 31 is smaller than the outer diameters of the first limiting portion 33 and the second limiting portion 32 respectively, thereby forming a first limiting surface 332 and a second limiting surface 321.

[0052] Please refer to Figure 5 and Figure 6 , in another embodiment, the connecting portion 31 includes a first connecting section 312 and two second connecting sections 313. One end of the first connecting section 312 is connected to the second limiting portion 32, and the other end of the first connecting section 312 is respectively connected to the two second connecting sections 313. The two second connecting sections 313 are arranged at intervals along the radial direction of the connecting portion 31. The ends of the two second connecting sections 313 facing away from the first connecting section 312 are respectively connected to the first limiting portion 33. When the sealing plug 3 is installed or disassembled, the two second connecting sections 313 can be deformed to facilitate the first limiting portion 33 to pass through the airtightness detection hole 112. It should be noted that the number of the second connecting sections 313 can be set according to actual needs, such as three or five, which is not limited here. When the number of the second connecting sections 313 is multiple, the multiple second connecting sections 313 are arranged at intervals along the circumferential direction of the first connecting section 312.

[0053] In some embodiments, the number of the first limiting portions 33 is set to be the same as the number of the second connecting sections 313, and each first limiting portion 33 is connected to the end of a corresponding second connecting section 313 facing away from the first connecting section 312. Each first limiting portion 33 protrudes radially from the outer periphery of a corresponding second connecting section 313, and a first limiting surface 332 is provided at one end of each first limiting portion 33 facing the second connecting section 313. The first limiting surface 332 of each first limiting portion 33 abuts against the inner wall of the housing 1. By providing at least two second connecting sections 313 and at least two first limiting portions 33, the sealing plug 3 can be easily installed and disassembled.

[0054] Specifically, by applying a force to the first limiting portion 33 or the second connecting section 313, the second connecting section 313 can be deformed, so that the first limiting portion 33 can pass through the airtightness detection hole 112, enabling the sealing plug 3 to be inserted into or removed from the airtightness detection hole 112; and when the sealing plug 3 is installed in place and the second connecting section 313 resumes deformation, the first limiting portion 33 can abut against the inner surface of the housing 1 to limit the sealing plug 3 at the airtightness detection hole 112.

[0055] When the sealing plug 3 is inserted into the airtightness detection hole 112 along the first direction X, the inner wall of the airtightness detection hole 112 squeezes the first limiting portion 33 and drives the second connecting section 313 to deform, so that the first limiting portion 33 enters the airtightness detection hole 112. The first guide surface 331 is used to be subjected to a reaction force toward the central axis of the airtightness detection hole 112 when in contact with the inner wall of the airtightness detection hole 112, so that the second connecting section 313 bends toward the central axis of the airtightness detection hole 112, and then the first limiting portion 33 can pass through the airtightness detection hole 112. After the first limiting portion 33 passes through the airtightness detection hole 112, the second connecting section 313 resumes its deformation, and the first limiting surface 332 abuts against the inner wall of the housing 1 to prevent the sealing plug 3 from being pulled out of the airtightness detection hole 112.

[0056] The second limiting portion 32 and the first limiting portion 33 are respectively pressed against the two sides of the housing 1 to limit the sealing plug 3 at the airtightness detection hole 112, thereby enhancing the stability of the sealing plug 3 sealing the airtightness detection hole 112. The connecting portion 31 is used to seal the airtightness detection hole 112. Specifically, the shape and size of the connecting portion 31 are adapted to the shape and size of the airtightness detection hole 112. The connecting portion 31 is interference-fitted with the airtightness detection hole 112, thereby sealing the airtightness detection hole 112. The multiple sealing structures are adopted to ensure the airtightness of the compressor controller 100.

[0057] In some embodiments, see Figure 5 The airtightness detection hole 112 is provided with a second guide surface 1121, and the second guide surface 1121 is provided at one end of the airtightness detection hole 112 away from the accommodating cavity 111. The second guide surface 1121 is used to apply a force toward the central axis of the airtightness detection hole 112 to the first limiting portion 33 when in contact with the first limiting portion 33. It can be understood that the second guide surface 1121 is connected to the outer surface of the housing 1, and the angle between the second guide surface 1121 and the opposite direction of the first direction X is an acute angle. For example, the second guide surface 1121 is a chamfer between the inner wall of the airtightness detection hole 112 and the outer surface of the housing 1, so that when the first limit portion 33 squeezes the second guide surface 1121 along the first direction X, the second guide surface 1121 applies a component force in the opposite direction of the first direction X and a component force toward the central axis of the airtightness detection hole 112 to the first limit portion 33, that is, the second guide surface 1121 applies a force toward the central axis of the airtightness detection hole 112 to the first limit portion 33. When the first limit portion 33 is Figure 4 When the structure is shown, the second guide surface 1121 drives the first limit portion 33 to shrink and deform and at least partially pass through the airtightness detection hole 112, so that the first limit portion 33 is easier to penetrate the airtightness detection hole 112; when the first limit portion 33 is Figure 5When in the structure shown, the second connecting section 313 is bent towards the central axis of the airtightness detection hole 112, so that the first limiting portion 33 and the second connecting section 313 are more easily inserted into the airtightness detection hole 112. It can be understood that the second guiding surface 1121 can also be used to guide the sealing plug 3, so that the sealing plug 3 is more easily and accurately inserted into the airtightness detection hole 112; please refer to Figure 4 , the second guiding surface 1121 can also be used to contact the first guiding surface 331, so that the first limiting portion 33 is more easily inserted into the airtightness detection hole 112.

[0058] In some embodiments, please refer to Figure 4 , a groove 113 is provided on the outer surface of the housing 1. The groove 113 can be specifically provided on the first housing 11. One end of the airtightness detection hole 112 facing away from the accommodating cavity 111 is communicated with the groove 113, and at least part of the second limiting portion 32 is arranged in the groove 113. By providing the groove 113, the second limiting portion 32 can be accommodated, the length of the sealing plug 3 protruding from the housing 1 can be reduced, and the aesthetics can be increased; and the second limiting portion 32 can be completely received in the groove 113, and a protective cover can be provided at the groove 113 to slow down the aging of the sealing plug 3 and extend the service life of the sealing plug 3.

[0059] In some embodiments, please refer to Figure 4 and Figure 5 , the compressor controller 100 further includes a sealing ring 4. The sealing ring 4 is sleeved on the sealing plug 3, specifically on the connecting portion 31, and the sealing ring 4 abuts against the hole wall of the airtightness detection hole 112. The sealing ring 4 can be a rubber ring. By clamping the sealing ring 4 between the connecting portion 31 and the inner wall of the airtightness detection hole 112, it is beneficial to enhance the sealing effect of the sealing plug 3 on the airtightness detection hole 112. In this embodiment, the sealing plug 3 can be made of a hard material, such as hard plastic, metal, etc.

[0060] Further, please refer to Figure 4 and Figure 5 , the sealing plug 3 is provided with a sealing groove 311. The sealing groove 311 can be specifically provided on the connecting portion 31. At least part of the sealing ring 4 is arranged in the sealing groove 311 to limit the position of the sealing ring 4 relative to the sealing plug 3 in the first direction X. The sealing groove 311 surrounds the sealing plug 3 to form an annular groove. The sealing ring 4 can be sleeved in the sealing groove 311, so that the sealing ring 4 is not easily displaced relative to the sealing plug 3 in the first direction X. Further, when the sealing plug 3 is installed in the airtightness detection hole 112, the sealing ring 4 can be accurately located between the sealing plug 3 and the inner wall of the airtightness detection hole 112 to improve the sealing effect of the sealing plug 3 on the airtightness detection hole 112. Optionally, the cross-section of the sealing groove 311 is semicircular around the circumference of the sealing plug 3.

[0061] In some embodiments, the sealing ring 4 and the sealing plug 3 are integrally formed. By integrally forming the sealing ring 4 and the sealing plug 3, there is no need to provide a sealing groove 311 to limit the position of the sealing ring 4 relative to the sealing plug 3 in the first direction X.

[0062] In this embodiment, the sealing plug 3 is made of an elastic material, such as rubber, plastic, etc., which facilitates the disassembly and installation of the sealing plug 3 and can improve the sealing performance of the sealing plug 3. In some other embodiments, the sealing plug 3 can also be made of a non-elastic material according to actual needs, and the connecting portion 31 and the airtightness detection hole 112 can also be set in other shapes according to actual needs, which are not limited herein.

[0063] It should be noted that both the second housing 12 and the first housing 11 and the terminal block 5 and the first housing 11 are detachably connected. Therefore, after the compressor controller 100 is assembled, the airtightness of the compressor controller 100 needs to be detected. In the prior art, usually a gap is reserved in the terminal block 5. For example, a gap is left between the insulating housing 51 of the high-voltage terminal block 5a and the internal bus bar 52, and gas is introduced into the accommodation cavity 111 through this gap, thereby realizing the airtightness detection of the compressor controller 100.

[0064] However, the insulating housing 51 of the high-voltage terminal block 5a usually has a complex structure. In order to hermetically connect the insulating housing 51 of the high-voltage terminal block 5a and the air pipe, a specially designed connecting tooling is required. When hermetically connecting the insulating housing 51 of the high-voltage terminal block 5a and the air pipe, the connecting tooling needs to be connected to the insulating housing 51 of the high-voltage terminal block 5a and the air pipe respectively, making the steps of connecting the air pipe complex, and thus reducing the airtightness detection efficiency of the compressor controller 100.

[0065] After the detection is completed, usually the high-voltage connection cable is inserted into the high-voltage terminal block 5a to seal the gap inside the high-voltage terminal block 5a. When the high-voltage connection cable and the high-voltage terminal block 5a are working, the current passing through them will generate heat, causing the temperature of the high-voltage connection cable and the high-voltage terminal block 5a to rise, resulting in accelerated aging of the high-voltage connection cable and the high-voltage terminal block 5a, and the airtightness between the high-voltage connection cable and the high-voltage terminal block 5a will also be affected; the frequent thermal cycling of the high-voltage connection cable and the high-voltage terminal block 5a will also affect the airtightness between the high-voltage terminal block 5a and the high-voltage connection cable, ultimately resulting in a decrease in the airtightness of the compressor controller 100.

[0066] To improve the above deficiencies, in this embodiment, the housing 1 is provided with an airtightness detection hole 112. The airtightness detection hole 112 communicates with the accommodation cavity 111. The sealing plug 3 is removably inserted into the airtightness detection hole 112, and the sealing plug 3 seals the airtightness detection hole 112. The airtightness detection hole 112 is used to communicate with a ventilation device. Among them, the ventilation device (not shown) includes an air pipe (not shown), and the air pipe communicates with the airtightness detection hole 112 to introduce gas into the accommodation cavity 111. In this way, the ventilation device is no longer connected to the high-voltage terminal block 5a, and thus no complex connection tooling is required. The air pipe of the ventilation device can be directly inserted into the airtightness detection hole 112, which is beneficial to improving the airtightness detection efficiency of the compressor controller 100. By using the sealing plug 3 to seal the airtightness detection hole 112, the sealed part is spaced from the high-voltage wiring cable and the high-voltage terminal block 5a, so that heat is difficult to conduct to the sealed part, and the sealed part is not easily affected by the heat generated by the compressor controller 100, which is beneficial to improving the airtightness of the compressor controller 100. There is also no need to leave a gap between the insulating shell 51 of the high-voltage terminal block 5a and the internal conductive row 52. The conductive row 52 can be injection-molded together with the insulating shell 51 to enhance the sealing effect between the conductive row 52 and the insulating shell 51 and improve the airtightness of the compressor controller 100.

[0067] An embodiment of the present application further provides a compressor (not shown). The compressor includes a compression pump (not shown) and a compressor controller 100. The compressor controller 100 is electrically connected to the compression pump. The compressor has the structural features and beneficial effects of the compressor controller 100, which will not be elaborated here.

[0068] For the compressor controller 100 and the compressor of the embodiment of the present application, by providing an airtightness detection hole 112 on the housing 1 to communicate with the ventilation device, no complex connection tooling is required, which is beneficial to improving the airtightness detection efficiency of the compressor controller 100. After the airtightness detection is completed, the airtightness detection hole 112 is sealed by the sealing plug 3. The first limiting portion 33 and the second limiting portion 32 respectively abut against the inner wall and the outer wall of the housing 1, and the airtightness detection hole 112 is blocked by the connecting portion 31. A multiple sealing structure is adopted to ensure the airtightness of the compressor controller 100. The sealing ring 4 is clamped between the sealing plug 3 and the inner wall of the airtightness detection hole 112, which is beneficial to enhancing the sealing effect of the sealing plug 3 on the airtightness detection hole 112. The first limiting portion 33 can deform to at least partially pass through the airtightness detection hole 112 and can recover its deformation to abut against the inner surface of the housing 1. When installing the sealing plug 3, only the sealing plug 3 needs to be inserted into the airtightness detection hole 112 along the first direction X, which is beneficial to simplifying the installation steps of the sealing plug 3 and improving the assembly efficiency of the compressor controller 100. A groove 113 is provided on the outer surface of the housing 1, which can accommodate the second limiting portion 32, reduce the length of the sealing plug 3 protruding from the housing 1, increase the aesthetics, and extend the service life of the sealing plug 3.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; under the idea of the present application, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other changes in different aspects of the present application as described above. For the sake of brevity, they are not provided in detail; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A compressor controller, characterized in that, include: The housing is provided with a containing cavity and an airtightness detection hole, wherein the airtightness detection hole is communicated with the containing cavity; A control element is disposed in the accommodating cavity; A wiring seat, arranged on the housing, one end of the wiring seat is electrically connected to the control element, and the other end of the wiring seat extends to the outside of the housing; A sealing plug is detachably inserted in the airtightness detection hole, and the sealing plug includes a first limiting portion, a connecting portion and a second limiting portion which are connected in sequence, the outer diameter of the first limiting portion and the outer diameter of the second limiting portion are both larger than the outer diameter of the connecting portion, the first limiting portion passes through the airtightness detection hole and is arranged in the accommodating cavity, one end of the first limiting portion facing the connecting portion abuts against the inner wall of the outer shell, the connecting portion is arranged in the airtightness detection hole, and the outer periphery of the connecting portion abuts against the hole wall of the airtightness detection hole, the second limiting portion is arranged on the outside of the outer shell, and one end of the second limiting portion facing the connecting portion abuts against the outer wall of the outer shell.

2. The compressor controller according to claim 1, characterized in that: A first guide surface and a first limit surface are respectively provided at both ends of the first limit portion. The first guide surface is provided at one end of the first limit portion away from the connecting portion, and the first limit surface abuts against the inner wall of the shell.

3. The compressor controller according to claim 1, characterized in that: The connecting portion comprises a first connecting section and at least two second connecting sections, one end of the first connecting section is connected to the second limiting portion, the other end of the first connecting section is respectively connected to the at least two second connecting sections, and the at least two second connecting sections are arranged at intervals; The number of the first limiting portions is the same as the number of the at least two second connecting segments, and each of the first limiting portions is connected to an end of a corresponding second connecting segment facing away from the first connecting segment.

4. The compressor controller according to claim 1, characterized in that: It also includes a sealing ring, which is sleeved on the connecting portion and abuts against the hole wall of the airtightness detection hole.

5. The compressor controller according to claim 4, characterized in that: The connecting portion is provided with a sealing groove, and the sealing ring is at least partially arranged in the sealing groove.

6. The compressor controller according to any one of claims 1 to 5, characterized in that: The sealing plug is made of elastic material.

7. The compressor controller according to claim 1, characterized in that: The airtightness detection hole is provided with a second guide surface, and the second guide surface is arranged at one end of the airtightness detection hole away from the accommodating cavity.

8. The compressor controller according to claim 1, characterized in that: The housing is further provided with a groove, one end of the airtightness detection hole facing away from the accommodating cavity is communicated with the groove, and the second limiting portion is at least partially disposed in the groove.

9. The compressor controller according to claim 1, characterized in that: The housing is provided with a mounting hole, the mounting hole is communicated with the accommodating cavity, and the wiring seat is installed in the mounting hole.

10. A compressor, characterized in that, include: Compression pump; The compressor controller according to any one of claims 1 to 9, wherein the compressor controller is electrically connected to the compression pump.

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