High-voltage connector

Abstract

The utility model relates to the technical field of electric connectors, in particular to a high-voltage connector, which solves the problem that a CPA structure in the prior art is easy to touch and unlock by mistake, and comprises a wire end protective shell, a control rod is rotatably connected onto the wire end protective shell, the CPA structure is movably connected onto the wire end protective shell, and the CPA structure is positioned between the control rod and the wire end protective shell. The CPA structure is provided with a pushing part, the pushing part penetrates through the control rod, the control rod is provided with a protective fence, and when the CPA structure is located at the secondary locking position, the pushing part is located in the protective fence. The CPA structure has the advantages that after the control rod is installed in place, the main body part of the CPA structure is located between the control rod and the wire end protection shell, and hidden arrangement of the CPA structure is achieved; when the CPA structure is located at the secondary locking position, the pushing part enters the protective fence, shielding of the unlocking groove in the pushing part is achieved, the situation that CPA unlocking is caused due to the fact that fingers touch the pushing part by mistake in the use process of the connector is effectively avoided, and the plug-in stability of the connector is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to a high-voltage connector. Background Technology

[0002] For safety, high-voltage connectors employ a low-voltage-to-high-voltage control method. Internal signal circuits are connected in series; if the signal circuit breaks, the high-voltage power to the connector is disconnected. However, incorporating an internal signal interlock circuit can introduce various problems. Because the signal circuit is a low-voltage signal, the signal sheath and terminals are relatively small, requiring precise alignment of the connector wire / board ends. Misalignment can easily lead to signal pin deformation or misalignment. Furthermore, the signal sheath is an internal mounting component and cannot be reworked.

[0003] Patent CN108134262 A discloses a novel adapter component for a connector position assurance CPA device. This CPA device and its adapter component can add a locking mechanism on the basis of the original self-locking mechanism, so that the connector can be locked better. When it is desired to open the connector, the CPA device can be easily unlocked, improving safety and convenience. It includes a CPA device, a housing, and a control rod. The side wall of the housing is provided with a hook structure and a protrusion. The side wall of the control rod is provided with an elastic hook. The side wall of the CPA device is provided with a protrusion. The elastic hook and the protrusion lock together to form a first locking mechanism. The protrusion and the hook structure lock together to form a second locking mechanism.

[0004] The connector described above uses a CPA structure for secondary locking to ensure the connection stability of the connector. However, in actual use, the CPA structure is located on the outside of the control lever, and can be easily unlocked by hand, which can easily lead to accidental unlocking and thus affect the mating stability of the connector. Utility Model Content

[0005] This invention proposes a high-voltage connector that solves the problem of accidental unlocking in the existing CPA structure.

[0006] The technical solution of this utility model is implemented as follows:

[0007] A high-voltage connector includes a wire end housing, a control rod rotatably connected to the wire end housing, and a CPA structure movably connected to the wire end housing. The CPA structure is located between the control rod and the wire end housing. The CPA structure has a pushing part that passes through the control rod, and a protective barrier is provided on the control rod. When the CPA structure is in the secondary locking position, the pushing part is located inside the protective barrier. First, when the CPA structure is fully assembled, the main body of the CPA structure is hidden between the control rod and the wire end housing. Second, the pushing part of the CPA structure enters the inside of the protective barrier, which shields the pushing part, achieving complete shielding and concealment of the CPA structure. This effectively prevents accidental unlocking of the CPA due to finger contact with the pushing part during connector use, thereby ensuring stable connector mating.

[0008] The control lever has a window corresponding to the position of the pusher. A guardrail is located at the edge of the window, in the locking direction of the CPA structure. When the CPA structure is in the secondary locking position, the pusher enters the guardrail. When the CPA structure is in the primary locking position, the pusher is outside the guardrail. And when the CPA structure moves to perform a secondary locking, the pusher enters the guardrail.

[0009] The pushing part is provided with an unlocking groove and an anti-slip rib. The unlocking groove and the anti-slip rib are located on the front and rear sides of the CPA structure, respectively. When the CPA structure is locked for the second time, the unlocking groove is located inside the guardrail. When unlocking is required, an unlocking tool needs to be inserted into the guardrail and connected to the unlocking groove. Then, the CPA structure is moved to the first locking position.

[0010] The line end sheath is equipped with a limiting structure, and the CPA structure is connected to the limiting structure. The limiting structure limits the CPA structure, ensuring the connection stability of the CPA structure on the line end sheath.

[0011] The CPA structure is provided with a second hook point, and the limiting structure is provided with a first limiting groove and a second limiting groove arranged side by side. The first limiting groove is engaged with the second hook point, or the second limiting groove is engaged with the second hook point. When the second hook point switches between the first limiting groove and the second limiting groove, the CPA structure can switch between a primary locking position and a secondary locking position.

[0012] The second hook point has an unlocking ramp on its rear side. When the CPA structure is unlocked, the unlocking ramp cooperates with the limiting structure to separate the second hook point from the second limiting groove and unlock it, and then cooperates with the first limiting groove to realize the switching of the CPA structure from the secondary locking position to the primary locking position.

[0013] The control lever is equipped with a CPA contact, which corresponds to the position of the first limiting groove. After the control lever is installed in place, the CPA contact presses the second hanging point, unlocking the second hanging point from the first limiting groove. At this time, the CPA structure can move to the secondary locking position.

[0014] The CPA structure is provided with a first mounting point, and the limiting structure is provided with a backstop groove. The first mounting point and the backstop groove cooperate with each other. The backstop groove limits the movement range of the CPA structure, preventing the CPA structure from separating from the limiting structure and preventing the CPA structure from detaching.

[0015] The CPA structure has a locking groove, and the control rod has a through-pin structure. The locking groove and the through-pin structure cooperate with each other. When the CPA structure is in the secondary locking position, the locking groove and the through-pin structure engage. At this time, the locking groove limits the through-pin structure, thereby achieving the locking and limiting of the control rod, realizing the secondary locking of the control rod by the CPA structure.

[0016] The control lever is equipped with a hook-on structure, and the cable end housing is equipped with a locking point. The hook-on structure and the locking point engage with each other. The engagement of the hook-on structure and the locking point achieves one-time locking of the control lever.

[0017] The beneficial effects of this utility model are as follows: First, after the control rod is installed in place, the main body of the CPA structure is located between the control rod and the wire end housing, with only the pushing part of the CPA structure protruding from the control rod, thus achieving a hidden installation of the CPA structure; Second, the control rod is equipped with a protective railing. When the CPA structure is in the secondary locking position, the pushing part enters the interior of the protective railing. At this time, the protective railing blocks the pushing part, thereby blocking the unlocking slot on the pushing part, effectively preventing accidental finger contact with the pushing part during connector use and thus ensuring the stability of connector mating. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a high-voltage connector structure according to the present invention;

[0020] Figure 2 A schematic diagram of the CPA structure locking in one operation;

[0021] Figure 3 This is a schematic diagram of the secondary locking mechanism of the CPA structure;

[0022] Figure 4 This is a schematic diagram of the CPA structure;

[0023] Figure 5 This is a schematic diagram of the control lever structure.

[0024] In the diagram: 1. Cable end cover; 11. Limiting structure; 12. First limiting groove; 13. Anti-reverse groove; 14. Locking point; 2. Control rod; 21. Guardrail; 22. Hanging structure; 23. Through pin structure; 24. CPA contact; 3. CPA structure; 31. Anti-slip rib; 32. Unlocking groove; 33. Pushing part; 34. Second hanging point; 35. First hanging point; 36. Locking groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1, such as Figure 2 , Figure 3 , Figure 5 As shown, a high-voltage connector includes a wire end housing 1, a control rod 2 rotatably connected to the wire end housing 1, and a CPA structure 3 movably connected to the wire end housing 1. The CPA structure 3 is located between the control rod 2 and the wire end housing 1. The CPA structure 3 is provided with a pushing part 33, which passes through the control rod 2. The control rod 2 is provided with a protective rail 21. When the CPA structure 3 is in the secondary locking position, the pushing part 33 is located inside the protective rail 21. First, after the control lever 2 is installed in place, the main body of the CPA structure 3 is located between the control lever 2 and the wire end housing 1, with only the pushing part of the CPA structure 3 protruding from the control lever 2, thus achieving a hidden setting of the CPA structure 3. Second, the control lever 2 is equipped with a protective railing 21. When the CPA structure 3 is in the secondary locking position, the pushing part 33 enters the interior of the protective railing 21. At this time, the protective railing 21 blocks the pushing part 33, thereby protecting the periphery of the unlocking groove 32 on the pushing part 33. This effectively prevents accidental contact of the pushing part by fingers during connector use, thus ensuring the stability of connector mating.

[0027] Furthermore, the control lever 2 is provided with a window, which corresponds to the position of the push part 33. The guardrail 21 is set at the edge of the window and is located in the locking direction of the CPA structure 3. When the CPA structure 3 is in the primary locking position, the push part 33 is located outside the guardrail 21, and when the CPA structure 3 moves to perform a secondary locking, the push part 33 enters the guardrail.

[0028] Furthermore, the pushing part 33 is provided with an unlocking groove 32 and an anti-slip rib 31. The unlocking groove 32 and the anti-slip rib 31 are located on the front and rear sides of the CPA structure 3, respectively. When the CPA structure 3 is locked for the second time, the unlocking groove 32 is located inside the guardrail 21. When unlocking is required, the unlocking tool needs to be inserted into the guardrail 21 and connected to the unlocking groove 32. Then, the CPA structure 3 is moved to the first locking position. When the CPA structure 3 moves to lock for the second time, the operator pushes the anti-slip rib 31 to move the CPA structure 3, thereby achieving the second locking of the CPA structure 3.

[0029] Example 2, based on Example 1, provides a high-voltage connector with a limiting structure 11 on the wire end sheath 1, and a CPA structure 3 connected to the limiting structure 11. The limiting structure 11 limits the CPA structure 3, ensuring the connection stability of the CPA structure 3 on the wire end sheath 1. In this example, the limiting structure 11 includes a first limiting plate and a second limiting plate, both of which are L-shaped structures, and the two L-shaped limiting plates are arranged opposite to each other, with the CPA structure 3 positioned between the two limiting plates.

[0030] Furthermore, such as Figure 1 , Figure 2 As shown, the CPA structure 3 is provided with a second hook point 34, and the limiting structure 11 is provided with a first limiting groove 12 and a second limiting groove arranged side by side. The first limiting groove 12 is engaged with the second hook point 34, or the second limiting groove is engaged with the second hook point 34. In this embodiment, the first limiting groove 12 and the second limiting groove are arranged side by side on the first limiting plate. When the CPA structure 3 moves, the second hook point 34 switches between the first limiting groove 12 and the second limiting groove, thereby realizing the switching of the CPA structure 3 between the primary locking position and the secondary locking position.

[0031] Furthermore, an unlocking ramp is provided on the rear side of the second hanging point 34. When the CPA structure 3 is unlocked, the unlocking ramp cooperates with the first limiting plate, causing the second hanging point 34 to separate from the second limiting groove and unlock, and causing the second hanging point 34 to cooperate with the first limiting groove 12, thereby realizing the switching of the CPA structure 33 from the secondary locking position to the primary locking position.

[0032] Furthermore, the control lever 2 is equipped with a CPA contact 24, which corresponds to the position of the first limiting groove 12. After the control lever 2 is installed in place, the CPA contact 24 presses the second hanging point 34, thereby unlocking the second hanging point 34 from the first limiting groove 12. At this time, the CPA structure 3 can move to the secondary locking position.

[0033] Furthermore, the CPA structure 3 is provided with a first hanging point 35, and the limiting structure 11 is provided with a backstop groove 13. The first hanging point 35 cooperates with the backstop groove 13. The backstop groove 13 limits the movement range of the CPA structure 3, preventing the CPA structure 3 from separating from the limiting structure 11 and preventing the CPA structure 3 from falling out.

[0034] Furthermore, the CPA structure 3 is provided with a locking groove 36, and the control lever 2 is provided with a through-pin structure 23. The locking groove 36 and the through-pin structure 23 cooperate with each other. When the CPA structure 3 is in the secondary locking position, the locking groove 36 and the through-pin structure 23 engage, and the locking groove 36 limits the through-pin structure 23, thereby achieving the locking and limiting of the control lever 2, and realizing the secondary locking of the control lever 2 by the CPA structure 3.

[0035] Furthermore, the control lever 2 is equipped with a hook-on structure 22, and the cable end housing 1 is equipped with a locking point 14. The hook-on structure 22 and the locking point 14 are hooked together. The hook-on structure 22 and the locking point 14 cooperate to lock the control lever 2 once.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-voltage connector, comprising a wire end housing (1), a control rod (2) rotatably connected to the wire end housing (1), and a CPA structure (3) movably connected to the wire end housing (1), characterized in that, The CPA structure (3) is located between the control lever (2) and the wire end sheath (1). The CPA structure (3) is provided with a push part (33), which passes through the control lever (2). The control lever (2) is provided with a guardrail (21). When the CPA structure (3) is in the secondary locking position, the push part (33) is located inside the guardrail (21).

2. The high-voltage connector according to claim 1, characterized in that, The control lever (2) has a window that corresponds to the position of the push part (33). The guardrail (21) is set at the edge of the window and is located in the locking direction of the CPA structure (3).

3. The high-voltage connector according to claim 1, characterized in that, The push part (33) is provided with an unlocking groove (32) and an anti-slip rib (31). The unlocking groove (32) and the anti-slip rib (31) are located on the front and rear sides of the CPA structure (3), respectively.

4. The high-voltage connector according to any one of claims 1 to 3, characterized in that, The end cap (1) is provided with a limiting structure (11), and the CPA structure (3) is connected to the limiting structure (11).

5. The high-voltage connector according to claim 4, characterized in that, The CPA structure (3) is provided with a second hanging point (34), and the limiting structure (11) is provided with a first limiting groove (12) and a second limiting groove arranged side by side. The first limiting groove (12) is engaged with the second hanging point (34) or the second limiting groove is engaged with the second hanging point (34).

6. The high-voltage connector according to claim 5, characterized in that, The second hanging point (34) has an unlocking ramp on its rear side.

7. The high-voltage connector according to claim 5, characterized in that, The control lever (2) is provided with a CPA contact (24), which corresponds to the position of the first limiting groove (12).

8. The high-voltage connector according to any one of claims 5 to 7, characterized in that, The CPA structure (3) is provided with a first hanging point (35), and the limiting structure (11) is provided with a backstop groove (13). The first hanging point (35) and the backstop groove (13) cooperate.

9. The high-voltage connector according to claim 8, characterized in that, The CPA structure (3) is provided with a locking groove (36), and the control rod (2) is provided with a pin structure (23). The locking groove (36) and the pin structure (23) cooperate with each other.

10. The high-voltage connector according to claim 9, characterized in that, The control lever (2) is provided with a hook structure (22), and the wire end cover (1) is provided with a locking point (14). The hook structure (22) and the locking point (14) are hooked together.

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