Compressor connector with high reliability

Abstract

The invention discloses a high-reliability compressor connector which comprises a shell, a conductive connecting piece is arranged at the bottom of the shell, a conductive column connected with the shell is fixed to the side, facing the shell, of the conductive connecting piece, at least one containing part is formed in the shell, and a wiring terminal is inserted into the containing part. The placing part comprises a connecting cavity and a placing groove which are communicated with each other, the wiring terminal comprises a connecting end inserted in the connecting cavity and a bunching end installed in the placing groove, and the connecting end is connected with the conductive column; the wiring terminal further comprises a lock cover, the lock cover is connected with the shell and located on the side, opposite to the bottom of the containing groove, of the wire bunching end, a limiting end is fixed to the side, facing the containing groove, of the lock cover, the limiting end is located in the containing groove, and the limiting end abuts against the side, opposite to the direction in which the wiring terminal is inserted into the shell, of the connecting end. And frequent friction between the limiting end and the connecting end is avoided, so that the reliability of connection between the connecting end and the conductive column is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of compressor connectors, and in particular to a high-reliability compressor connector. Background Art

[0002] A compressor is a mechanical device used to compress gas or liquid, and is widely used in air conditioners, refrigerators, industrial manufacturing, energy and other fields. In the prior art, the wiring of the compressor usually requires connecting the wire to the compressor's conductive column through a connector. Through the connector, the wire can be quickly connected to the compressor's conductive column without complicated welding or screw fixation. When maintenance or replacement of the wire is required, the connector can be quickly disassembled without disassembling other parts of the compressor. As a key component for realizing power transmission, the compressor connector needs to meet convenience requirements while ensuring reliability and safety.

[0003] For example, the authorization publication number CN221009292U discloses a compressor connector, which has a placement portion on its base, the placement portion includes a receiving hole and a receiving groove, and an ejection end is arranged between the receiving hole and the receiving groove, and a limiting step is arranged on the ejection end toward the side of the receiving hole, and the terminal at the front end of the wire group is bent to form a bent end, and the bent end is placed in the receiving hole, and the bent end abuts against the outer periphery of the conductive column of the compressor, and an anti-arch end is arranged at the front end of the bent end, and abuts against the limiting step through the anti-arch end.

[0004] However, in actual use, when the terminal block is installed and removed many times, each installation and removal will cause the anti-arch end to come into contact with the limit step, generating friction and mechanical stress, leading to wear. Wear will cause the shape of the anti-arch end to change, affecting its contact with the limit step, which may lead to poor contact or looseness between the connecting end and the conductive column of the compressor, reducing the reliability of the connector and affecting the normal operation of the equipment. Summary of the invention

[0005] In order to ensure the reliability of the connector in long-term use, a high-reliability compressor connector is provided.

[0006] The above-mentioned object of the present invention is achieved through the following technical solutions: A high-reliability compressor connector comprises a shell, a conductive connector is provided at the bottom of the shell, and a conductive column connected to the shell is fixed on the side of the conductive connector facing the shell, at least one placement portion is opened in the shell and a wiring terminal is inserted in the placement portion, the placement portion comprises a connecting cavity and a placement groove which are interconnected, the wiring terminal comprises a connecting end inserted in the connecting cavity and a wiring end installed in the placement groove, the connecting end is connected to the conductive column; and also comprises a locking cover, the locking cover is connected to the shell and is located on the side of the wiring end facing away from the bottom of the placement groove, a limiting end is fixed on the side of the locking cover facing the placement groove, the limiting end is located in the placement groove, and the limiting end abuts against the side of the connecting end facing away from the direction of the wiring terminal being inserted into the shell.

[0007] By adopting the above technical solution, the design of the limit end of the lock cover abutting against the connecting end can further limit the position of the terminal block, ensure the stable contact between the terminal block and the conductive column of the compressor, and prevent the terminal block from loosening due to vibration. At the same time, the terminal block is plugged into the placement portion, and the design of the contact surface of the limit end and the connecting end abutting against each other will not cause frequent friction between the limit end and the connecting end, thereby reducing the wear of the terminal block and ensuring the reliability of the connection between the connecting end and the conductive column.

[0008] Optionally, a limiting groove is opened on the outer wall of the lock cover, a limiting block is fixed on the outer wall of the shell, and the lock cover and the shell are clamped together through the limiting groove and the limiting block.

[0009] By adopting the above technical solution, through the clip-on design of the limit groove and the limit block, the position of the lock cover can be effectively fixed to prevent the lock cover from loosening or rotating due to vibration or other external forces, thereby further improving the stability of the connection between the lock cover and the shell. At the same time, when maintenance or replacement of the terminal blocks is required, the clip-on structure makes the disassembly of the lock cover easier, without the need for complicated tools or operations, thereby reducing maintenance costs and time.

[0010] Optionally, a barb extending toward the bottom of the placement slot is fixed to the bottom of the wiring terminal, a limiting member is fixed to the bottom of the placement slot, and the limiting member is engaged with the barb.

[0011] By adopting the above technical solution, the longitudinal displacement of the terminal block during vibration can be effectively limited through the clamping structure of the limiter and the barb. Even in complex working conditions or long-term operation, it can resist the pressure impact applied from different directions, so that the terminal block will not easily slip out of the initial position and cause a short circuit.

[0012] Optionally, a side of the limit member facing away from the insertion of the wiring terminal is arranged as an inclined slope.

[0013] By adopting the above technical solution, the inclined surface design of the fixing block can provide better guiding effect for the limiting piece of the terminal block, making it easier for the limiting piece to align with the clamping position of the fixing block during the insertion process, thereby improving the success rate and efficiency of assembly.

[0014] Optionally, the connecting end includes two relatively parallel connecting pieces, the middle parts of the two connecting pieces are raised toward the inner wall of the connecting cavity, and the middle parts of the two connecting pieces are in contact with the outer periphery of the conductive column.

[0015] By adopting the above technical solution, by raising the middle part of the connecting piece toward the wall of the placement groove, the raised connecting piece can better contact with the conductive column, thereby increasing the contact area between the connecting piece and the conductive column of the compressor, reducing the increase in resistance or signal distortion caused by poor contact, thereby improving the current transmission efficiency and conductivity, and ensuring a stable electrical connection.

[0016] Optionally, a plugging hole for plugging into the conductive column is formed at the bottom of the wiring terminal, and an inner edge of the plugging hole bulges in a direction away from the plugging direction of the conductive column.

[0017] By adopting the above technical solution, the chamfer design of the outer periphery of the plug hole can provide a better guide for the insertion of the compressor conductive column, making it easier for the conductive column to align with the plug hole. At the same time, after the conductive column is inserted, it can guide the conductive column to form a more stable contact with the plug hole, thereby improving the stability of the connection. Optionally, fixing parts are fixed on both side walls outside the shell.

[0018] By adopting the above technical solution, a fixing part is added, and the fixing part and the shell are not on the same side. When the connector needs to be connected or disconnected from the compressor, the operator can use the support of the fixing part to reduce sliding when unplugging the connector, making the plugging of the connector shell and the conductive column more convenient. The user can quickly complete the plugging and improve the installation efficiency.

[0019] Optionally, an elastic reset member is provided at the bottom of the connecting cavity, and the elastic reset member includes an elastic support plate, a support spring is fixed between the elastic support plate and the bottom of the connecting cavity, and the elastic support plate abuts against the end of the barb, and a pressing assembly is fixed on the side of the limiting end facing the placement groove, and the pressing assembly abuts against the wiring terminal.

[0020] By adopting the above technical solution, when the locking cover is buckled, the pressing assembly first presses the terminal, and then the barb presses the elastic return member and the limit member to engage, so that the contact between the barb and the limit member is buffered by the elastic return member, reducing the impact and wear during direct contact.

[0021] Optionally, the side of the limiting end facing the placement slot is flush with the inner wall of the top side of the connecting cavity, the pressing assembly includes a fixing plate and a pressing rod, an adjusting cavity is opened in the lock cover, a knob assembly is installed in the adjusting cavity, the knob assembly includes a linkage rod, one end of the linkage rod passes through the outside of the lock cover, and the other end is inserted into the fixing plate, a return spring is installed on the outer periphery of the linkage rod, a limiting protrusion is fixed on the end of the linkage rod inserted into one end of the fixing plate, a limiting groove along the circumference of the linkage rod is opened in the fixing plate, and the limiting protrusion is clamped with the side of the limiting end facing the placement slot.

[0022] By adopting the above technical solution, after pressing and rotating the knob assembly, the limiting protrusion slides into the limiting groove, the limiting protrusion will be disengaged from the limiting end, the elastic potential energy of the reset spring will pull the fixed plate into the adjustment cavity, the pressure rod will no longer clamp the terminal, the terminal will be bounced up by the elastic reset part, and then the terminal can be plugged in and out, the terminal can be replaced or maintained without removing the lock cover, and the maintenance efficiency of the terminal is improved by pressing and rotating the knob assembly.

[0023] Optionally, when the limiting protrusion slides in the limiting groove, the side of the fixing plate facing away from the locking cover is flush with the side of the limiting end facing the placement groove.

[0024] By adopting the above technical solution, when the linkage rod is pressed and rotated, the limiting protrusion on the end of the linkage rod will slide into the limiting groove, and the elastic deformation of the compression spring in the adjustment cavity will be restored, thereby driving the fixed plate to enter the adjustment cavity, and the side of the fixed plate facing away from the lock cover is flush with the side of the limiting end facing the placement groove, avoiding the blocking of the connection end by the fixed plate, reducing the risk of blocking the fixed plate during the plugging and unplugging process of the terminal.

[0025] In summary, the present invention has at least the following beneficial effects: 1. Through the abutment between the limit end and the connection end and multiple limit structures such as the barb and the limit piece, the stability and reliability of the terminal block in a high vibration environment are ensured, effectively preventing loosening and displacement.

[0026] 2. When maintenance is required, after pressing and rotating the knob assembly, the linkage rod drives the fixing plate to be retracted into the adjustment cavity, and the elastic reset part automatically bounces up the terminal, making it easier to pull out the terminal without removing the lock cover, reducing maintenance steps and improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 An exploded schematic diagram of a high reliability compressor connector; Figure 2 is a cross-sectional view of a high-reliability compressor connector; Figure 3 is a schematic diagram of the structure of the wiring terminal; Figure 4 It is a cross-sectional view of the wiring terminal installed in the housing; Figure 5 It is a cross-sectional view of the wiring terminal in the second embodiment installed in the housing; Figure 6 for Figure 5 A local enlarged view at point A; Figure 7 It is a cross-sectional view of the lock cover in the second embodiment.

[0028] 1. Shell; 11. Limit block; 12. Fixing member; 13. Elastic reset member; 131. Elastic support plate; 132. Support spring; 2. Conductive connector; 21. Conductive column; 3. Placement portion; 31. Placement groove; 311. Limit member; 32. Connecting cavity; 4. Wiring terminal; 41. Connecting end; 42. Wire harness end; 411. Connecting piece; 412. Plug-in hole; 413. Barb; 5. Lock cover; 51. Limit end; 52. Limit groove; 53. Adjusting cavity; 6. Pressing assembly; 61. Fixing plate; 611. Limiting groove; 62. Pressing rod; 7. Knob assembly; 71. Knob; 72. Reset spring; 73. Linking rod; 731. Limiting protrusion; 74. Fixing ring. DETAILED DESCRIPTION

[0029] The following is a further detailed description in conjunction with the accompanying drawings: Example

[0030] As attached Figure 1 and attached Figure 2 As shown, a high-reliability compressor connector includes a shell 1, a conductive connector 2 is arranged at the bottom of the shell 1, and a conductive column 21 plugged into the shell 1 is fixed on the side of the conductive connector 2 facing the shell 1.

[0031] At least one placement portion 3 is provided in the shell 1, and the number of the placement portions 3 is three. Three wiring terminals 4 are respectively installed in the three placement portions 3, and the three wiring terminals 4 are respectively plugged into the three placement portions 3. The placement portions 3 on both sides of the shell 1 are relatively parallel, and the middle placement portion 3 extends away from the direction in which the wiring terminals 4 are inserted into the placement portions 3, so that the shell 1 is adaptively reduced, and the distance required for the wiring terminals 4 to be inserted into the shell 1 is reduced, which is helpful for the installation of the wiring terminals 4; the placement portion 3 is sequentially provided with placement grooves 31 and connecting cavities 32 along the plug-in direction of the wiring terminals 4, one side of the placement groove 31 is connected to the connecting cavity 32, and the other side is connected to the outside.

[0032] As attached Figure 2 and attached Figure 3As shown, the terminal block 4 includes a connecting end 41 and a wiring end 42, the connecting end 41 is fixedly connected to the wiring end 42, the connecting end 41 is located in the connecting cavity 32, the connecting end 41 includes two relatively parallel connecting pieces 411, the middle parts of the two connecting pieces 411 are both raised toward the inner wall direction of the connecting cavity 32, and the middle parts of the two connecting pieces 411 are abutted against the outer periphery of the conductive column 21, the raised connecting piece 411 can better contact with the conductive column 21, thereby increasing the contact area between the connecting piece 411 and the compressor conductive column 21, and ensuring a stable electrical connection.

[0033] A plugging hole 412 is provided at the bottom of the connecting end 41 for plugging into the conductive column 21, and the inner edge of the plugging hole 412 is raised in the direction away from the plugging direction of the conductive column 21. The chamfered design of the outer periphery of the plugging hole 412 can provide better guidance for the insertion of the compressor conductive column 21, making it easier for the conductive column 21 to align with the plugging hole 412. At the same time, after the conductive column 21 is inserted, it can guide the conductive column 21 to form a more stable contact with the plugging hole 412, thereby improving the stability of the connection.

[0034] As attached Figure 3 and attached Figure 4 As shown, a barb 413 extending toward the bottom of the placement groove 31 is fixed to the bottom of the connection end 41, and a limit member 311 is fixed to the bottom of the placement groove 31, and the limit member 311 is engaged with the barb 413, so as to limit the longitudinal displacement of the terminal 4 during vibration, and can resist the pressure shock applied from different directions even in complex working conditions or long-term operation.

[0035] The side of the limit member 311 facing away from the direction of insertion of the terminal 4 into the housing 1 is set as an inclined slope, which can provide better guiding effect for the limit member 311 of the terminal 4, making it easier for the limit member 311 to align with the clamping position of the fixing block during the insertion process, thereby improving the success rate and efficiency of assembly.

[0036] The wire bundling end 42 is located in the placement groove 31 , one end of the wire bundling end 42 is fixedly connected to the connection end 41 , and the other end is connected to the wire for bundling the wire.

[0037] The shell 1 is also provided with a locking cover 5 which is snap-fitted with the outer wall of the shell 1. The locking cover 5 is located on the side of the wire bundle end 42 facing away from the bottom of the placement groove 31. The locking cover 5 is fixed with a limiting end 51 on the side facing the placement groove 31. The limiting end 51 is located in the placement groove 31, and the limiting end 51 abuts against the side of the connecting end 41 facing away from the direction of the terminal 4 being inserted into the shell 1, which can further limit the position of the terminal 4 and prevent the terminal 4 from loosening due to vibration.

[0038] As attached Figure 1As shown, a limiting groove 52 is opened on the outer wall of the lock cover 5, and a limiting block 11 is fixed on the outer wall of the shell 1, and the lock cover 5 and the shell 1 are clamped together through the limiting groove 52 and the limiting block 11, which can effectively fix the position of the lock cover 5. When the terminal block 4 needs to be maintained or replaced, the clamping structure makes the disassembly of the lock cover 5 more convenient without the need for complicated tools or operations.

[0039] Fixing parts 12 are fixed on both side walls outside the shell 1. The fixing parts 12 and the shell 1 are not on the same side. When the connector needs to be connected or disconnected from the compressor, the operator can use the support of the fixing parts 12 to reduce sliding when unplugging the connector, making the connection between the connector shell 1 and the conductive column 21 more convenient. The user can quickly complete the connection, thereby improving installation efficiency. Example

[0040] The second embodiment is improved on the basis of the first embodiment, and the rest of the structure is consistent with that of the first embodiment, and will not be described in detail here.

[0041] As attached Figure 5 and attached Figure 6 As shown, an elastic return member 13 is provided at the bottom of the connecting cavity 32, and the elastic return member 13 includes an elastic support plate 131 and a support spring 132. The elastic support plate 131 is relatively parallel to the bottom of the connecting cavity 32, and the side of the elastic support plate 131 facing away from the bottom of the connecting cavity 32 is in contact with the barb 413; there are multiple support springs 132, and the two ends of the multiple support springs 132 are respectively connected to the elastic support plate 131 and the bottom of the connecting cavity 32, and the contact between the barb 413 and the limit member 311 is buffered by the elastic return member 13, thereby reducing the impact and wear during direct contact.

[0042] The side of the limiting end 51 facing the placement groove 31 is flush with the inner wall of the top side of the connecting cavity 32. A pressing assembly 6 is fixed on the side of the limiting end 51 facing the placement groove 31. The pressing assembly 6 includes a fixing plate 61 and a pressing rod 62. One end of the pressing rod 62 is fixedly connected to the fixing plate 61, and the other end is in contact with the connecting terminal 4.

[0043] As attached Figure 5 and attached Figure 7 As shown, the lock cover 5 is provided with an adjustment cavity 53 for the fixing plate 61 to fit and slide into, and a knob assembly 7 is installed in the adjustment cavity 53. The knob assembly 7 includes a linkage rod 73. One end of the linkage rod 73 passes through the outside of the lock cover 5, and a knob 71 is fixed on the end. The outer periphery of the knob 71 is provided with a thread for easy rotation; the other end of the linkage rod 73 is located in the fixing plate 61, and two limiting protrusions 731 are fixed on the outer periphery of the end. A limiting groove 611 is also provided in the fixing plate 61 along the circumferential direction of the linkage rod 73, and the two limiting protrusions 731 both slide and move in the limiting groove 611.

[0044] The knob assembly 7 also includes a fixing ring 74 and a return spring 72. The fixing ring 74 is located at the outer periphery of the linkage rod 73. At the same time, the fixing ring 74 is located at a side of the fixing plate 61 located at the adjustment chamber 53 and is fixedly connected to the fixing plate 61. The return spring 72 is located at the outer periphery of the linkage rod 73, and one end of the return spring 72 is fixedly connected to a side of the fixing ring 74 facing away from the fixing plate 61, and the other end of the return spring 72 is fixedly connected to the groove wall on the top side of the adjustment chamber 53.

[0045] After pressing and rotating the knob assembly 7, the limiting protrusion 731 slides into the limiting groove 611, and the limiting protrusion 731 will be disengaged from the limiting end 51. The elastic potential energy of the reset spring 72 will pull the fixing plate 61 into the adjusting cavity 53. The pressing rod 62 no longer clamps the terminal 4. The terminal 4 is bounced up by the elastic reset piece 13, and then the terminal 4 can be plugged in and out. The terminal 4 can be replaced or maintained without removing the lock cover 5. By pressing and rotating the knob assembly 7, the maintenance efficiency of the terminal 4 is improved.

[0046] Work results Through the above specific implementation methods, it can be seen that the high-reliability compressor connector of the present invention has multiple limiting and fixing functions in structural design, combined with the optimized design of the elastic reset member 13 and the pressing assembly 6, which significantly improves the stability and reliability of the connector under high vibration and complex working conditions.

[0047] At the same time, the innovative design of the knob assembly 7 makes maintenance operations more convenient. The terminal block 4 can be unplugged and replaced without removing the lock cover 5, which greatly reduces maintenance costs and time. It not only meets the requirements of high reliability and high stability in industrial environments, but also improves the service life and maintenance efficiency of the connector through optimized structural design.

[0048] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make non-creative modifications to this embodiment as needed, but as long as it is within the scope of protection required by the present invention, it will be protected by the patent law.

Claims

1. A high-reliability compressor connector, comprising a housing (1), a conductive connector (2) being arranged at the bottom of the housing (1), and a conductive column (21) connected to the housing (1) being fixed on a side of the conductive connector (2) facing the housing (1), wherein: At least one placement portion (3) is provided in the housing (1) and a wiring terminal (4) is plugged into the placement portion (3); the placement portion (3) comprises a connecting cavity (32) and a placement groove (31) that are interconnected; the wiring terminal (4) comprises a connecting end (41) plugged into the connecting cavity (32) and a wiring end (42) installed in the placement groove (31); the connecting end (41) is connected to a conductive column (21); It also comprises a locking cover (5), the locking cover (5) being connected to the housing (1) and being located on a side of the wire harness end (42) facing away from the bottom of the placement groove (31), the locking cover (5) having a limiting end (51) fixed on a side facing the placement groove (31), the limiting end (51) being located in the placement groove (31), and the limiting end (51) abutting against a side of the connection end (41) facing away from the direction in which the wiring terminal (4) is inserted into the housing (1).

2. A high reliability compressor connector according to claim 1, characterized in that: A limiting groove (52) is provided on the outer wall of the lock cover (5), a limiting block (11) is fixed on the outer wall of the shell (1), and the lock cover (5) and the shell (1) are clamped together via the limiting groove (52) and the limiting block (11).

3. A high reliability compressor connector according to claim 1, characterized in that: A barb (413) extending in the direction of the bottom of the placement groove (31) is fixed on the bottom of the connection terminal (4), a limiting member (311) is fixed on the bottom of the placement groove (31), and the limiting member (311) is engaged with the barb (413).

4. A high reliability compressor connector according to claim 3, characterized in that: The side of the limiting member (311) facing away from the insertion of the connecting terminal (4) is arranged as an inclined slope.

5. A high reliability compressor connector according to claim 1, characterized in that: The connection end (41) comprises two relatively parallel connection pieces (411), the middle parts of the two connection pieces (411) both protrude towards the inner wall of the connection cavity (32), and the middle parts of the two connection pieces (411) abut against the outer periphery of the conductive column (21).

6. A high reliability compressor connector according to claim 1, characterized in that: The bottom of the connection terminal (4) is provided with a plugging hole (412) plugged into the conductive column (21), and the inner edge of the plugging hole (412) is raised in the direction away from the plugging direction of the conductive column (21).

7. A high-reliability compressor connector according to claim 1, characterized in that: Fixing members (12) are fixed on both side walls outside the shell (1).

8. A high reliability compressor connector according to claim 1, characterized in that: An elastic reset member (13) is provided at the bottom of the connection cavity (32), the elastic reset member (13) comprising an elastic support plate (131), a support spring (132) is fixed between the elastic support plate (131) and the bottom of the connection cavity (32), and the elastic support plate (131) abuts against the end of the barb (413), and a pressing assembly (6) is fixed to the side of the limiting end (51) facing the placement groove (31), and the pressing assembly (6) abuts against the wiring terminal (4).

9. A high reliability compressor connector according to claim 8, characterized in that: The side of the limiting end (51) facing the placement groove (31) is flush with the inner wall of the top side of the connecting cavity (32); the pressing assembly (6) comprises a fixing plate (61) and a pressing rod (62); an adjusting cavity (53) is provided in the lock cover (5); a knob assembly (7) is installed in the adjusting cavity (53); the knob assembly (7) comprises a linkage rod (73); one end of the linkage rod (73) passes through the outside of the lock cover (5); the other end fits and is inserted into the fixing plate (61); a return spring (72) is installed on the outer circumference of the linkage rod (73); a limiting protrusion (731) is fixed on the end of the linkage rod (73) inserted into one end of the fixing plate (61); a limiting groove (611) is provided in the fixing plate (61) along the circumference of the linkage rod (73); and the limiting protrusion (731) is clamped with the side of the limiting end (51) facing the placement groove (31).

10. A high reliability compressor connector according to claim 9, characterized in that: When the limiting protrusion (731) slides in the limiting groove (611), the side of the fixing plate (61) facing away from the locking cover (5) is flush with the side of the limiting end (51) facing the placement groove (31).

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