Large-current connector and first connector and second connector thereof

Abstract

The utility model discloses a heavy current connector and a first connector and a second connector thereof. The first connector comprises an annular outer wall and an isolation wall arranged in the annular outer wall, a clamping cavity is formed between the isolation wall and the annular outer wall, and the clamping cavity is provided with a clamping through hole penetrating to the surface of the annular outer wall. The second connector comprises an insertion block which is inserted in the annular outer wall in a matched mode, the insertion block is provided with an integrally-formed buckle, and the buckle is arranged in the clamping cavity in a matched mode and hooks the clamping through hole. According to the utility model, the isolation wall is arranged in the annular outer wall of the first connector, and the isolation wall and the annular outer wall form the clamping cavity for the buckling matching of the second connector, so that the clamping structure between the first connector and the second connector does not protrude out of the surface of the large-current connector any more, but is designed by utilizing the internal space; the size of the high-current connector can be reduced, and application requirements of some special scenes can be met.

Description

Technical Field

[0001] This utility model belongs to the field of electrical connection technology, and specifically refers to a high-current connector and its first connector and second connector. Background Technology

[0002] With the rapid development of technologies such as smart cities, artificial intelligence, and 5G, the demand for servers in all sectors of society has increased significantly. People are increasingly communicating through the network in their daily work and life, and the amount of network data is also constantly increasing, which in turn leads to a greater demand for high-density servers. Among the internal components of high-density servers, connectors are an indispensable part.

[0003] The applicant's previous research disclosed in patent CN216672028U, "Female connector and male connector", in which the snap-fit ​​structure protrudes from the surface of the connector, which further increases the size of the connector and cannot meet the needs of some small-volume application scenarios. Utility Model Content

[0004] The main purpose of this utility model is to provide a high-current connector and its first and second connectors, which solves the problems existing in the prior art, can reduce the size of the connector, and meet the application requirements of some special scenarios.

[0005] To achieve the above objectives, one of the solutions of this utility model is:

[0006] A first connector includes an annular outer wall and a first isolation wall disposed within the annular outer wall. The first isolation wall and the annular outer wall form a locking cavity. The locking cavity is provided with a locking through hole extending to the surface of the annular outer wall. The annular outer wall does not have a snap-ring structure for fastening an external connector.

[0007] The annular outer wall is provided with a live wire terminal block, a neutral wire terminal block, and a grounding terminal block. The first isolation wall includes a horizontal portion arranged parallel to the grounding terminal block and a vertical portion that abuts against the side wall of the grounding terminal block. The live wire terminal block and the neutral wire terminal block are arranged parallel to each other, and one of the live wire terminal block and the neutral wire terminal block is located on the side of the first isolation wall facing away from the engaging through hole. On the end cross-section of the first connector, neither the horizontal portion nor the vertical portion of the first isolation wall contacts the inner wall of the annular outer wall.

[0008] Preferably, the first isolation wall is connected to the side wall of the grounding terminal block; the adjacent sides of the live wire terminal block and the neutral wire terminal block extend toward and connect to the opposite surfaces of the first isolation wall and the grounding terminal block.

[0009] Preferably, the live wire terminal block, neutral wire terminal block, and grounding terminal block are each equipped with a conductive terminal group; the conductive terminal group includes a terminal and a spring clip, the terminal being supported on the inner surface of the live wire terminal block, neutral wire terminal block, or grounding terminal block by the spring clip; the conductive terminal group also includes a spring clip anti-reverse pin; the end of the terminal that engages with the live wire terminal block, neutral wire terminal block, or grounding terminal block hooks onto the corresponding end of the spring clip, and the spring clip anti-reverse pin is embedded in the mounting hole of the first connector and limits the other end of the spring clip.

[0010] Preferably, the inner end wall of the engaging cavity has no terminal holes, and the first connector has a groove behind the engaging cavity with a side opening.

[0011] On the end cross-section of the first connector, the height of the first connector is 35~42mm and the width is 25~30mm; the thickness of the first isolation wall is 1~2mm; the center distance between the live wire terminal and the neutral wire terminal of the first connector is 10~15mm; and the height difference between the grounding terminal and its live wire terminal and neutral wire terminal is 5~10mm.

[0012] The second solution of this utility model is:

[0013] A second connector includes a plug block with an integrally formed snap fastener on its annular outer wall. The plug block has a live wire terminal hole, a neutral wire terminal hole, a ground terminal hole, and an isolation cavity. The isolation cavity is arranged side by side with the ground terminal hole, and the live wire terminal hole is arranged side by side with the neutral wire terminal hole. The isolation cavity is completely surrounded by a second isolation wall, and the outline of the isolation cavity at the front end face of the plug block is a closed rectangular opening. The snap fastener sinks into the isolation cavity when subjected to downward pressure.

[0014] The surface of the plug block has a first movable notch, and the surface of the second connector has a second movable notch that communicates with the first movable notch; the buckle includes an integrally connected elastic buckle and a pressing part, the end of the elastic buckle away from the pressing part is integrally connected to the end of the first movable notch, and the pressing part is movably fitted in the second movable notch.

[0015] On the end section of the second connector, the height of the plug block of the second connector is 14~20mm and the width is 20~25mm, and the step difference between the second connector and its plug block is 0.5~1.5mm.

[0016] The third solution of this utility model is:

[0017] A high-current connector includes the first connector and the second connector.

[0018] The high-current connector includes a first connector and two second connectors. The annular outer wall is provided with two mating cavities for mating blocks. The mating blocks of the two second connectors are respectively mated in the two mating cavities, and the two second connectors are connected in parallel to the first connector.

[0019] After adopting the above technical solution, the present invention has the following technical effects:

[0020] This invention provides a first isolation wall inside the annular outer wall of the first connector, and the first isolation wall and the annular outer wall form a locking cavity for the second connector to snap into place. This makes the locking structure between the first connector and the second connector no longer protrude from the surface of the high-current connector, but is designed using the internal space, which helps to reduce the size of the high-current connector and meet the application requirements of some special scenarios. Attached Figure Description

[0021] Figure 1 The first connector stereoscopic embodiment of this utility model Figure 1 ;

[0022] Figure 2 The first connector stereoscopic embodiment of this utility model Figure 2 ;

[0023] Figure 3 This is an exploded view of the first connector according to a specific embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the dimensions of the first connector according to a specific embodiment of the present utility model;

[0025] Figure 5 The second connector stereoscopic view is a specific embodiment of this utility model. Figure 1 ;

[0026] Figure 6 The second connector stereoscopic view is a specific embodiment of this utility model. Figure 2 ;

[0027] Figure 7 This is a schematic diagram of the dimensions of the second connector in a specific embodiment of this utility model;

[0028] Figure 8 This is a perspective view of a high-current connector according to a specific embodiment of the present invention;

[0029] Figure 9 This is a top view of a high-current connector according to a specific embodiment of the present invention;

[0030] Figure 10 This is a front view of a high-current connector according to a specific embodiment of the present invention;

[0031] Figure 11 for Figure 9 A cross-sectional view along the AA direction;

[0032] Figure 12 for Figure 10 Cross-sectional view along the BB direction;

[0033] Explanation of icon numbers:

[0034] 100 - First connector;

[0035] 101-Annular outer wall; 102-First isolation wall; 1021-Horizontal portion; 1022-Vertical portion; 103-Interlocking cavity; 104-Interlocking through hole; 105-Live wire terminal block; 106-Neutral wire terminal block; 107-Grounding terminal block; 108-Conductive terminal group; 1081-Terminal; 1082-Spring; 109-Mounting hole; 110-Groove; 111-Side opening;

[0036] 200 - Second connector;

[0037] 201-Plug-in block; 202-Snap-in; 2021-Elastic buckle; 2022-Pressing part; 203-First movable notch; 204-Second movable notch; 205-Live wire terminal hole; 206-Neutral wire terminal hole; 207-Grounding terminal hole; 208-Isolation cavity; 209-Second isolation wall. Detailed Implementation

[0038] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0039] refer to Figure 1-12 As shown, this utility model discloses a high-current connector and its first connector 100 and second connector 200, which mainly consist of... Figure 1-4 The first connector 100 is shown, consisting of... Figure 5-7 The second connector 200 is shown, consisting of... Figure 8-12 The insertion and mating relationship between the two is shown.

[0040] The first connector 100 can be fixed on the connection panel of the server, and is therefore called a board-end connector, which includes an annular outer wall 101.

[0041] The aforementioned annular outer wall 101 is provided with upper and lower insertion cavities separated by a middle partition. After rotating the upper insertion cavity by 180 degrees, the layout of the lower hole group is the same as that of the upper hole group, and the position of the engaging through hole 104 on the annular outer wall 101 is also the same. Hereinafter, Figure 1The design of the upper insertion cavity will be used to illustrate this.

[0042] The upper insertion cavity of the first connector 100 is provided with a live wire terminal block 105, a neutral wire terminal block 106, a ground terminal block 107, and a first isolation wall 102; the first isolation wall 102 is attached to the ground terminal block 107 and includes a horizontal portion 1021 extending outward from the ground terminal block 107 and arranged in parallel, and a vertical portion 1022 attached to the side wall of the ground terminal block 107.

[0043] The horizontal portion 1021 and the vertical portion 1022 of the first isolation wall 102, together with the annular outer wall 101, form a locking cavity 103. The locking cavity 103 is provided with a locking through hole 104 extending to the upper or lower surface of the annular outer wall 101. Thus, the locking cavity 103 is designed using the internal space of the annular outer wall 101 for the second connector 200 to engage with, and the locking structure between the two no longer protrudes from the surface of the annular outer wall 101, avoiding external space occupation.

[0044] The aforementioned live wire terminal block 105 and neutral wire terminal block 106 are arranged side by side, and one of the live wire terminal block 105 and neutral wire terminal block 106 is located on the side of the first isolation wall 102 facing away from the engaging through hole 104; on the end section of the first connector 100, neither the horizontal portion 1021 nor the vertical portion 1022 of the first isolation wall 102 contacts the inner wall of the annular outer wall 101, forming a clearance space for the second connector 200 to achieve insertion and engagement.

[0045] Preferably, the first isolation wall 102 is connected to the side wall of the grounding terminal block 107; the adjacent sides of the live wire terminal block 105 and the neutral wire terminal block 106 extend toward and connect to the opposite surfaces of the first isolation wall 102 and the grounding terminal block 107.

[0046] Preferably, each of the above-mentioned live wire terminal block 105, neutral wire terminal block 106, and grounding terminal block 107 is equipped with a conductive terminal group 108. The conductive terminal group 108 includes a terminal 1081 and a spring contact 1082. The terminal 1081 is supported on the inner surface of the live wire terminal block 105, neutral wire terminal block 106, or grounding terminal block 107 by the spring contact 1082. The conductive terminal group 108 also includes a spring contact anti-reverse pin 1083. The end of the terminal 1081 that engages with the live wire terminal block 105, neutral wire terminal block 106, or grounding terminal block 107 hooks onto the corresponding end of the spring contact 1082. The spring contact anti-reverse pin 1083 is embedded in the mounting hole 109 of the first connector 100 and limits the other end of the spring contact 1082. Thus, during assembly, it is only necessary to first insert the terminal 1081 and the spring contact 1082 together into the first connector 100, and then insert the spring contact anti-reverse pin 1083 for limiting, making assembly quick and convenient.

[0047] Preferably, the inner end wall of the aforementioned engaging cavity 103 has no terminal hole. More specifically, compared to the fact that the bottom of the live wire terminal block 105, the neutral wire terminal block 106, or the grounding terminal block 107 is provided with a terminal hole to allow the terminal 1081 and the spring 1083 to pass through the entrance behind the first connector 100 and enter each terminal block through the terminal hole, the bottom of the engaging cavity 103 can be closed, or only have a small hole that is not large enough for the aforementioned terminals to pass through. Both can be considered as a terminal hole-free design.

[0048] See also Figure 2 Unlike the design where the live and neutral terminals are completely embedded in the first connector 100, at least a portion of the ends of both grounding terminals are exposed on the platform at the end of the first connector. This design allows the wire to extend laterally after the grounding terminals are soldered. Correspondingly, the first connector 100 has a groove 110 on the side wall behind the engaging cavity 103. The side wall of the groove 110 is left open, forming a side opening 111. Thus, the grounding wire of the first connector 100 can extend laterally through the groove 110 and its side opening 111, making wiring more flexible.

[0049] See Figure 4 On the end section of the first connector 100, the height H1 of the first connector 100 is 35~42mm, the width W1 is 25~30mm, the thickness D1 of the first isolation wall 102 is 1~2mm, the center-to-center distance D2 between the live wire terminal block 105 and the neutral wire terminal block 106 of the first connector 100 is 10~15mm, and the height difference D3 between the grounding terminal block 107 and its live wire terminal block 105 and neutral wire terminal block 106 of the first connector 100 is 5~10mm. More specifically, the height H1 of the first connector 100 is 39mm, the width W1 is 26.5mm, the thickness D1 of the first isolation wall 102 is 1.5mm, the center-to-center distance D2 between the live wire terminal block 105 and the neutral wire terminal block 106 of the first connector 100 is 13mm, and the height difference D3 between the grounding terminal block 107 and its live wire terminal block 105 and neutral wire terminal block 106 of the first connector 100 is 7mm.

[0050] On the other hand, the aforementioned second connector 200 connects to the cable, hence it is called a wire-end connector, and is used to adapt to either the upper or lower insertion cavity of the first connector 100. In application, the two second connectors 200 are respectively inserted into the upper and lower insertion cavities to provide power to them. The second connector 200 includes a plug block 201 that is inserted and fitted within the annular outer wall 101. The plug block 201 has an integrally formed snap fastener 202, which fits within the engagement cavity 103 and hooks onto the engagement through hole 104. After the plug block 201 is inserted into the annular outer wall 101, most of the snap fastener 202 is also located on the inner side of the annular outer wall 101, and its main part does not protrude from the surface of the annular outer wall 101, thus avoiding external space occupation. In this way, there is no need for a snap ring structure outside the annular outer wall 101 for external connectors to be fastened.

[0051] Preferably, the surface of the plug block 201 is provided with a first movable notch 203, and the surface of the second connector 200 is provided with a second movable notch 204 communicating with the first movable notch 203; the buckle 202 includes an elastic buckle 2021 and a pressing part 2022 integrally connected, the end of the elastic buckle 2021 away from the pressing part 2022 is integrally connected to the end of the first movable notch 203, and the pressing part 2022 is movably fitted in the second movable notch 204.

[0052] Preferably, the aforementioned plug-in block 201 is provided with a live wire terminal hole 205, a neutral wire terminal hole 206, a grounding terminal hole 207, and an isolation cavity 208. The isolation cavity 208 is arranged side by side with the grounding terminal hole 207, and the live wire terminal hole 205 is arranged side by side with the neutral wire terminal hole 206. The latch 202 is provided on the side wall of the isolation cavity 208. The isolation cavity 208 can separate the latch 202 from the live wire terminal hole 205, the neutral wire terminal hole 206, and the grounding terminal hole 207, preventing dust and moisture from entering the connection between the first connector 100 and the second connector 200. The aforementioned isolation cavity 208 can be surrounded by a second isolation wall 209, so that the inner wall of the plug-in block 201 forms a chamber that communicates with or does not communicate with each terminal hole. This chamber is used to form the aforementioned latch 202 and provide a downward travel space for the latch 202.

[0053] See Figure 7 On the end section of the second connector 200, the height H2 of the plug block 201 of the second connector 200 is 14~20mm, the width W2 is 20~25mm, and the step difference D4 between the second connector 200 and its plug block 201 is 0.5~1.5mm.

[0054] The aforementioned high-current connector includes a first connector 100 and a second connector 200.

[0055] In this embodiment, the high-current connector assembly may include a first connector 100 and two second connectors 200 in application. Two insertion cavities 112 are provided within the annular outer wall 101 for the insertion blocks 201 to mate with. The insertion blocks 201 of the two second connectors 200 are respectively inserted into the two insertion cavities 112, and both second connectors 200 are connected in parallel to the first connector 100. By using the two parallel second connectors 200, a design that ensures uninterrupted power supply during insertion and removal can be achieved. Even if one second connector 200 is disconnected for some reason, the other second connector 200 will still maintain normal connection with the first connector 100.

[0056] Through the above solution, this utility model provides a first isolation wall 102 inside the annular outer wall 101 of the first connector 100, and the first isolation wall 102 and the annular outer wall 101 form a locking cavity 103 for the second connector 200 to engage with the latch 202. This makes the locking structure between the first connector 100 and the second connector 200 no longer protrude from the surface of the high-current connector, but is designed using the internal space, which helps to reduce the size of the high-current connector and meet the application requirements of some special scenarios.

[0057] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A first connector characterized in that: comprising a ring-shaped outer wall (101), and a first partition wall (102) arranged in the ring-shaped outer wall (101), a clamping cavity (103) is formed between the first partition wall (102) and the ring-shaped outer wall (101), and the clamping cavity (103) is provided with a clamping through hole (104) penetrating to the surface of the ring-shaped outer wall (101); and the ring-shaped outer wall (101) is not provided with a buckle ring structure for buckling with an external connector.

2. The first connector according to claim 1, characterized in that: the ring-shaped outer wall (101) is provided with a live terminal seat (105), a zero terminal seat (106) and a ground terminal seat (107), the first partition wall (102) comprises a horizontal portion (1021) arranged side by side with the ground terminal seat (107), and a vertical portion (1022) abutting the side wall of the ground terminal seat (107); the live terminal seat (105) and the zero terminal seat (106) are arranged side by side, and one of the live terminal seat (105) and the zero terminal seat (106) is arranged on the side of the first partition wall (102) away from the clamping through hole (104); on the end section of the first connector (100), neither the horizontal portion (1021) nor the vertical portion (1022) of the first partition wall (102) is in contact with the inner wall of the ring-shaped outer wall (101).

3. The first connector according to claim 2, characterized in that: the first partition wall (102) is connected with the side wall of the ground terminal seat (107); and the adjacent sides of the live terminal seat (105) and the zero terminal seat (106) extend towards and are connected to the opposite surfaces of the first partition wall (102) and the ground terminal seat (107).

4. The first connector according to claim 2, characterized in that: the live terminal seat (105), the zero terminal seat (106) and the ground terminal seat (107) are respectively provided with a conductive terminal set (108); the conductive terminal set (108) comprises a terminal (1081) and a spring sheet (1082), the terminal (1081) is carried on the inner side surface of the live terminal seat (105), the zero terminal seat (106) or the ground terminal seat (107) through the spring sheet (1082); the conductive terminal set (108) further comprises a spring sheet stop pin (1083); the end of the terminal (1081) fitted on the live terminal seat (105), the zero terminal seat (106) or the ground terminal seat (107) is hooked to the corresponding end of the spring sheet (1082), and the spring sheet stop pin (1083) is embedded in the mounting hole (109) of the first connector (100) and limits the other end of the spring sheet (1082).

5. The first connector according to claim 2, characterized in that: ​ ​ ​ ​ The inner side wall of the engaging cavity (103) is free of terminal holes, and the first connector (100) is provided with a groove (110) at the rear of the engaging cavity (103), and the groove (110) is provided with a side opening (111). 6.The first connector of claim 1, wherein: The height of the first connector (100) is 35-42 mm, and the width is 25-30 mm; the thickness of the first partition wall (102) is 1-2 mm; the centerline distance between the live terminal seat (105) and the neutral terminal seat (106) of the first connector (100) is 10-15 mm, and the height difference between the ground terminal seat (107) and the live terminal seat (105) and the neutral terminal seat (106) of the first connector (100) is 5-10 mm. 7.A second connector, comprising: The plug block (201) is provided with a live terminal hole (205), a neutral terminal hole (206), a ground terminal hole (207), and an isolation cavity (208), the isolation cavity (208) is arranged side by side with the ground terminal hole (207), and the live terminal hole (205) and the neutral terminal hole (206) are arranged side by side; the isolation cavity (208) is completely surrounded by a second partition wall (209), and the profile of the isolation cavity (208) on the front end face of the plug block (201) is a closed rectangular opening; the buckle (202) sinks into the isolation cavity (208) when subjected to a downward pressure. 8.The second connector of claim 7, wherein: The surface of the plug block (201) is provided with a first movable notch (203), and the surface of the second connector (200) is provided with a second movable notch (204) in communication with the first movable notch (203); the buckle (202) comprises an elastic buckle (2021) and a pressing portion (2022) connected integrally, the end of the elastic buckle (2021) away from the pressing portion (2022) is connected to the end of the first movable notch (203), and the pressing portion (2022) is movably fitted in the second movable notch (204). 9.The second connector of claim 7, wherein: The height of the plug block (201) of the second connector (200) is 14-20 mm, and the width is 20-25 mm; the step difference between the second connector (200) and the plug block (201) thereof is 0.5-1.5 mm.

10. A high current connector characterized by The first connector (100) and two second connectors (200) as claimed in claim 1 and claim 7 are included; two plug-in cavities (112) for matching the plug-in blocks (201) are arranged in the ring-shaped outer wall (101), the plug-in blocks (201) of the two second connectors (200) are respectively plug-in matched in the two plug-in cavities (112), and the two second connectors (200) are both connected in parallel on the first connector (100).

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