Electrical connection device and compressor

Abstract

The utility model relates to the technical field of connecting devices, in particular to an electrical connecting device and a compressor, the electrical connecting device comprises a shell, a sealing element, a guiding element and a fixing assembly, and the shell is inserted into a mounting groove of a compressor shell; the sealing piece is arranged on the shell in a sleeving manner and is clamped between the shell and the groove wall of the mounting groove; the guide piece is arranged on the surface, opposite to the bottom wall of the mounting groove, of the shell and is inserted into the bottom wall of the mounting groove; and in the groove depth direction of the mounting groove, the shell and the compressor shell are relatively fixed through the fixing assembly. When the device is installed, the device is guided and positioned through the guiding piece, the device is fixedly connected with the compressor shell through the fixing assembly, and therefore the sealing piece is evenly stressed. The utility model further provides a compressor, and through the arrangement of the electrical connection device, the sealing performance of the connection between the electrical connection device and the compressor shell is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connection devices, in particular to an electrical connection device and a compressor. Background Art

[0002] A compressor is a driven fluid machine that boosts low-pressure gas to high-pressure gas. It is the heart of the refrigeration system and is driven by a pulley or an electric drive. Electric-driven compressors have both a motor and an inverter to drive the motor.

[0003] The inverter is installed inside the compressor housing, and the drive connection device and control connection device for driving and controlling the compressor are independently installed on the compressor housing. Each connection device is fixed with 2-4 screws, and the pins of the connection device are welded to the inverter to drive and control the compressor. In this structure, there are more screws per unit area, the sealing ring is evenly stressed, and the seal is reliable, but this structure takes up more space on the surface of the compressor housing and is even difficult to arrange. In the prior art, there is a method that integrates the drive and control connection devices into one part, but only uses one screw in the middle for positioning and fixing. There are too few fixing screws per unit area, and they are not accurately positioned. There is uneven compression in the cross-sectional direction and axial direction of the sealing ring, resulting in poor sealing between the connection device and the compressor housing. Utility Model Content

[0004] The purpose of the utility model is to provide an electrical connection device, which has accurate positioning during installation and uniform force on the sealing ring.

[0005] Another object of the present invention is to provide a compressor, which improves the sealing between the electrical connection device and the compressor housing by providing the above-mentioned electrical connection device.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] Electrical connection device, including:

[0008] A housing, the housing being configured to be inserted into a mounting slot of a compressor housing;

[0009] A sealing member, the sealing member being sleeved on the housing and sandwiched between the housing and the groove wall of the mounting groove;

[0010] a guide member, the guide member being disposed on a surface of the housing opposite to the bottom wall of the mounting groove and being configured to be plugged into the bottom wall of the mounting groove;

[0011] A fixing assembly is used to fix the housing relative to the compressor housing along the depth direction of the mounting groove.

[0012] Furthermore, the seal includes a first sealing ring and a second sealing ring, the first sealing ring is located in the mounting groove and clamped between the shell and the groove wall of the mounting groove, and the second sealing ring is located outside the mounting groove and clamped between the shell and the compressor shell.

[0013] Furthermore, the first sealing ring and the second sealing ring are an integrally formed part.

[0014] Furthermore, a limiting ring is recessed in the peripheral wall of the shell, and the sealing component is arranged in the limiting ring.

[0015] Furthermore, a mounting hole is provided on the compressor housing, and the fixing assembly includes a connecting hole and a fastener provided on the housing, and the fastener passes through the mounting hole and is screwed to the hole wall of the connecting hole.

[0016] Furthermore, there are at least two connecting holes, and at least two connecting holes are spaced apart on the shell. The fasteners and the mounting holes are respectively arranged in one-to-one correspondence with the connecting holes.

[0017] Furthermore, the electrical connection device has two connectors, which are arranged on the housing at intervals, and the connection hole is arranged between the two connectors. The two connectors are used to electrically connect the equipment outside the compressor housing with the equipment inside the compressor housing.

[0018] Furthermore, at least two guide members are provided, and at least two guide members are spaced apart and arranged on the shell.

[0019] Furthermore, the shell abuts against the bottom wall of the installation groove.

[0020] A compressor comprises a compressor housing and an electrical connection device as described in any of the above schemes, wherein the electrical connection device is fixedly connected to the compressor housing.

[0021] Beneficial effects of the utility model:

[0022] The utility model provides an electrical connection device, which includes a housing, a seal, a guide, and a fixing assembly. The housing is inserted into the mounting groove of the compressor housing; the seal is sleeved on the housing and clamped between the housing and the groove wall of the mounting groove; the guide is provided on the surface of the housing opposite to the bottom wall of the mounting groove and is plugged into the bottom wall of the mounting groove; along the groove depth direction of the mounting groove, the fixing assembly fixes the housing relative to the compressor housing. When installing the device, the housing is inserted into the compressor mounting groove, the seal is clamped between the housing and the groove wall of the mounting groove of the compressor housing, the guide guides and positions the device, and the fixing assembly fixes the device to the compressor housing, so that the seal is evenly stressed, thereby ensuring the sealing of the connection between the device and the compressor housing.

[0023] The utility model also provides a compressor, which improves the sealing performance of the connection between the electrical connecting device and the compressor housing by providing the above-mentioned electrical connecting device, avoids the infiltration of moisture and reduces the risk of leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of an electrical connection device provided by an embodiment of the present utility model;

[0025] Figure 2 This is a cross-sectional view of the connection between the electrical connection device provided by an embodiment of the present utility model and the compressor housing;

[0026] Figure 3 is a top view of the electrical connection device provided by an embodiment of the utility model;

[0027] Figure 4 It is a structural schematic diagram of the compressor housing provided by an embodiment of the present utility model.

[0028] In the picture:

[0029] 1. Housing; 11. Limiting ring; 2. Sealing member; 21. First sealing ring; 22. Second sealing ring; 3. Guide member; 41. Connecting hole; 42. Fastener; 5. Connecting member;

[0030] 10. Compressor housing; 101. Mounting slot; 102. Mounting hole; 103. Guide hole. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0034] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0035] It should also be noted that, in the description of this utility model, unless otherwise specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

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

[0037] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0038] Example 1

[0039] The following combination Figure 1-Figure 4 The technical solution of the utility model is further illustrated through specific implementation methods.

[0040] In order to improve the sealing performance of the connection between the electrical connection device and the compressor housing 10, an embodiment of the present invention provides an electrical connection device, which includes a housing 1, a seal 2, a guide 3 and a fixing assembly, the housing 1 is inserted into the mounting groove 101 of the compressor housing 10; the seal 2 is sleeved on the housing 1 and clamped between the housing 1 and the groove wall of the mounting groove 101; the guide 3 is arranged on the surface of the housing 1 opposite to the bottom wall of the mounting groove 101 and is inserted into the bottom wall of the mounting groove 101; along the groove depth direction of the mounting groove 101, the fixing assembly fixes the housing 1 and the compressor housing 10 relatively.

[0041] Specifically, when the device is installed, the shell 1 is inserted into the installation groove 101, the seal 2 is clamped between the shell 1 and the groove wall of the installation groove 101 of the compressor shell 10, and the guide member 3 is used to guide and position the device. The fixing assembly fixes the device to the compressor shell 10, ensuring that the seal 2 is evenly stressed, thereby ensuring the sealing of the connection between the device and the compressor shell 10.

[0042] Furthermore, the housing 1 includes a housing body and a first flange arranged on the peripheral wall of the housing body around the peripheral wall of the housing body, such as Figure 2 As shown, the seal 2 includes a first sealing ring 21 and a second sealing ring 22. The first sealing ring 21 is located in the mounting groove 101 and is clamped between the shell 1 and the groove wall of the mounting groove 101, and is tightly pressed against the shell 1 and the groove wall of the mounting groove 101, that is, the first sealing ring 21 is sleeved on the shell body and is located between the first flange and the groove wall of the mounting groove 101. The second sealing ring 22 is located outside the mounting groove 101 and is clamped between the shell 1 and the compressor shell 10, and is tightly pressed against the shell 1 and the compressor shell 10, that is, the second sealing ring 22 is clamped between the first flange and the compressor shell 10, ensuring a certain axial compression amount of the seal 2, thereby ensuring the sealing of the connection between the device and the compressor shell 10.

[0043] Optionally, the first sealing ring 21 and the second sealing ring 22 are integrally formed, which is easy to process and ensures the consistency of the performance of the sealing member 2. The first sealing ring 21 and the second sealing ring 22 can be processed by compression molding or injection molding, which is not specifically limited here.

[0044] Furthermore, the housing 1 abuts against the bottom wall of the mounting groove 101 , thereby ensuring uniform force on the second sealing ring 22 and stability of the connection between the housing 1 and the compressor housing 10 .

[0045] In order to limit the seal 2 during installation, in this embodiment, a second flange is also provided on the shell body, and the first flange, the second flange and the shell body are arranged to form a limiting ring 11. The seal 2 is arranged in the limiting ring 11, which ensures the correct installation position of the seal 2. The convenient installation can enable the seal 2 to better contact with the shell 1 and the compressor shell 10.

[0046] Furthermore, the compressor housing 10 is provided with a mounting hole 102. The fixing assembly includes a connecting hole 41 and a fastener 42 provided on the housing 1. The mounting hole 102 is provided corresponding to the connecting hole 41. The fastener 42 passes through the mounting hole 102 and is threadedly engaged with the hole wall of the connecting hole 41, thereby fixing the housing 1 to the compressor housing 10. The fastener 42 can be a screw or a bolt, without specific limitation.

[0047] In order to further improve the uniformity of the axial force of the seal 2 and the firm and reliable connection between the housing 1 and the compressor housing 10, the number of the connecting holes 41 can be set according to the installation requirements. For example, the number of the connecting holes 41 is two, three, or four, so that the axial force of the seal 2 is uniform. No specific limitation is made here. In this embodiment, if Figure 3 As shown, two connecting holes 41 are provided, and the two connecting holes 41 are arranged at intervals on the shell 1. Furthermore, the fasteners 42 and the mounting holes 102 are respectively arranged in a one-to-one correspondence with the connecting holes 41, which can make the seal 2 more evenly stressed and the seal between the shell 1 of the electrical connection device and the compressor shell 10 is reliable.

[0048] Furthermore, two connectors 5 are provided, and the two connectors 5 are used to electrically connect the device outside the compressor housing 10 with the device inside the compressor housing 10 . Specifically, the compressor housing 10 is connected to a device for driving and controlling the compressor. Two through-holes are provided on the bottom wall of the mounting groove 101 of the compressor housing 10. The two through-holes connect the inside and outside of the compressor housing 10. Two connecting holes are provided on the housing 1. Two connectors 5 are respectively inserted into the two connecting holes, and the two connectors 5 are respectively sealed and connected to the housing 1. The pin at one end of one connector 5 passes through a corresponding through-hole and is electrically connected to the device in the compressor housing 10, and the other end is electrically connected to the compressor driving device. The pin at one end of the other connector 5 passes through another corresponding through-hole and is electrically connected to the device in the compressor housing 10, and the other end is electrically connected to the compressor control device. Further, the two connectors 5 are spaced apart on one housing 1, and two connecting holes 41 are provided between the two connectors 5. Then, the housing 1 and the compressor housing 10 are sealed and connected by two fasteners 42, ensuring that the connection between the housing 1 of the electrical connection device and the compressor housing 10 is firm and the sealing is reliable.

[0049] Furthermore, two guide members 3 are provided, and the two guide members 3 are spaced apart and arranged between the two connecting members 5, as shown in FIG. Figure 4 As shown, a guide hole 103 is provided on the compressor housing 10, and two guide members 3 are plugged into the guide holes 103 in a one-to-one correspondence. During installation, the guide members 3 are used to guide and position the electrical connection device so that each cross section of the seal 2 is evenly stressed.

[0050] The embodiment of the present utility model further provides a compressor, comprising a compressor housing 10 and an electrical connection device, wherein the electrical connection device is fixedly connected to the compressor housing 10, thereby ensuring a reliable sealing connection between the compressor housing 10 and the electrical connection device.

[0051] Example 2

[0052] The structure of the electrical connection device in this embodiment is basically the same as the electrical connection device in Example 1. The only difference is that the seal 2 in this embodiment only includes a first sealing ring 21. The first sealing ring 21 is located in the mounting groove 101 and is clamped between the shell 1 and the groove wall of the mounting groove 101, and is tightly pressed against the shell 1 and the groove wall of the mounting groove 101. That is, the first sealing ring 21 is sleeved on the shell body and is located between the first flange and the groove wall of the mounting groove 101, thereby ensuring the sealing of the connection between the device and the compressor shell 10.

[0053] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An electrical connection device, characterized in that include: A housing (1), the housing (1) being configured to be inserted into a mounting groove (101) of a compressor housing (10); A sealing member (2), the sealing member (2) being sleeved on the housing (1) and clamped between the housing (1) and the groove wall of the installation groove (101); A guide member (3), the guide member (3) being arranged on a surface of the housing (1) opposite to the bottom wall of the installation groove (101) and being used for plugging into the bottom wall of the installation groove (101); A fixing assembly is provided along the groove depth direction of the installation groove (101), and the fixing assembly is used to relatively fix the housing (1) and the compressor housing (10).

2. The electrical connection device according to claim 1, characterized in that: The sealing member (2) comprises a first sealing ring (21) and a second sealing ring (22), wherein the first sealing ring (21) is located in the mounting groove (101) and is sandwiched between the housing (1) and the groove wall of the mounting groove (101), and the second sealing ring (22) is located outside the mounting groove (101) and is sandwiched between the housing (1) and the compressor housing (10).

3. The electrical connection device according to claim 2, characterized in that: The first sealing ring (21) and the second sealing ring (22) are integrally formed parts.

4. The electrical connection device according to claim 1, wherein: A limiting ring (11) is recessed in the peripheral wall of the housing (1), and the sealing member (2) is arranged in the limiting ring (11).

5. The electrical connection device according to claim 1, characterized in that: The compressor housing (10) is provided with a mounting hole (102), and the fixing assembly comprises a connecting hole (41) and a fastener (42) provided on the housing (1); the fastener (42) passes through the mounting hole (102) and is screwed to the hole wall of the connecting hole (41).

6. The electrical connection device according to claim 5, characterized in that: At least two connection holes (41) are provided, and at least two connection holes (41) are spaced apart and arranged on the housing (1). The fasteners (42) and the mounting holes (102) are respectively provided in one-to-one correspondence with the connection holes (41).

7. The electrical connection device according to claim 5, characterized in that: The electrical connection device has two connectors (5), the two connectors (5) are arranged on the housing (1) at intervals, the connection hole (41) is arranged between the two connectors (5), and the two connectors (5) are used to electrically connect the equipment outside the compressor housing (10) with the equipment inside the compressor housing (10).

8. The electrical connection device according to any one of claims 1 to 7, characterized in that: At least two guide members (3) are provided, and at least two guide members (3) are spaced apart and arranged on the housing (1).

9. The electrical connection device according to any one of claims 1 to 7, characterized in that: The housing (1) abuts against the bottom wall of the installation groove (101).

10. A compressor, characterized in that The invention comprises a compressor housing (10) and an electrical connection device according to any one of claims 1 to 9, wherein the electrical connection device is fixed to the compressor housing (10).

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