A CPA connector and wiring harness connector

Abstract

The present invention relates to a CPA connector and a wiring harness connector. The CPA connector includes a semi-frame-shaped head and a clamping portion integrally arranged in the middle of the head. The head includes two parallel side ribs and a connecting rib whose two ends are respectively vertically connected to the two side ribs. A plurality of anti-slip protrusions are arranged on the outer sides of the two side ribs. The length direction of the clamping portion is parallel to the side ribs, and one end of the clamping portion is integrally connected to the connecting rib, and a downward inverted triangle protrusion is arranged at the bottom of the other end. The wiring harness connector includes a socket body, a sheath body and a CPA connector, and a secondary lock is formed. Compared with the prior art, the guide groove between the guide protrusion of the CPA connector of the present invention and the sheath body is arranged, which is convenient for installation, and the above structure can prevent the CPA from falling off; and the anti-slip protrusion and the side withdrawal groove are arranged to prevent the CPA from being excessively inserted backward; in addition, a secondary lock structure is formed between the sheath body, the CPA connector and the socket body, which has a simple structure and has sufficient holding force.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to a CPA connector and a wiring harness connector. Background Art

[0002] With the continuous development of new energy vehicles, many manufacturers in the automotive industry are now starting to produce high-voltage connectors, wiring harnesses and other products suitable for new energy vehicles. The high-voltage connector is equipped with a secondary lock structure to ensure that the connector will not loosen due to vehicle vibration or misoperation during driving.

[0003] The secondary lock structures currently available on the market are generally complex in structure or have expensive mold and manufacturing costs. Some manufacturers even require two CPA parts in the mechanism. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a CPA connector and a wiring harness connector with simple assembly relationship and convenient installation.

[0005] The objective of the present invention can be achieved by the following technical scheme: a CPA connector, which is inserted and fixed in a sheath body, the CPA connector comprises a semi-frame-shaped head and a clamping portion integrally arranged in the middle of the head, the head comprises two parallel side ribs and a connecting rib whose two ends are respectively vertically connected to the two side ribs, a plurality of anti-slip protrusions are arranged on the outer sides of the two side ribs, the length direction of the clamping portion is parallel to the side ribs, one end of the clamping portion is integrally connected to the connecting rib, and a downward inverted triangle protrusion is arranged at the bottom of the other end.

[0006] The front ends of the upper surface of the sheath body are provided with clamping plates, and each clamping plate is provided with a side-drawing groove matching the anti-dropping protrusion. The invention cooperates with the anti-dropping protrusion and the side-drawing groove, so that when the CPA connector is inserted backward, the anti-dropping protrusion is inserted into the side-drawing groove, thereby preventing the CPA connector from being excessively inserted backward.

[0007] An anti-slip lock is provided between the tails of the cardboard, and both sides of the tail of the anti-slip lock are rotatably connected to the cardboard through torsion springs. Two guide grooves are provided in the middle of the anti-slip lock. When no force is applied, the anti-slip lock is arranged obliquely upward from its tail to its head.

[0008] The upper surface of the clamping part is provided with two guide protrusions matching the guide grooves, the length direction of the guide protrusions is parallel to the side ribs, and when the anti-slip protrusion is clamped in the side withdrawal groove, the top of the head of the guide protrusion abuts against the tail of the anti-slip lock. When the CPA connector is gradually inserted into the ferrule body backward, the guide protrusion moves along the guide groove and gradually pushes open the anti-slip lock, and the anti-slip lock gradually changes from an oblique upward setting to a horizontal setting, until the two guide protrusions pass through the guide groove, and the anti-slip lock changes from an oblique upward setting to a horizontal setting under the action of the torsion spring, thereby abutting against the front end of the guide protrusion. Without opening the anti-slip lock, the entire CPA connector cannot move forward. At this time, the entire CPA connector can neither move forward nor backward, that is, it is fixed in the sheath body.

[0009] The clamping part includes a peripheral fixed part and a middle movable part, the movable part and the fixed part are integrated, and there are gaps between the three sides of the movable part and the fixed part, the two sides of the movable part are flush with the two guide protrusions, and the inverted triangle protrusion is arranged at the bottom of the movable part. This arrangement enables the movable part to have a certain upward and downward bounce performance.

[0010] A reinforcing rib is provided at the connection between the clamping portion and the head.

[0011] A wiring harness connector provided with the CPA connector as described above, the wiring harness connector comprises a socket body and a sheath body, the socket body is inserted into the sheath body, a trapezoidal protrusion is provided in the sheath body, a baffle is provided in the middle of the socket body, when the socket body and the sheath body are installed, the baffle is located at the front end of the trapezoidal protrusion and abuts against the trapezoidal protrusion, when the CPA connector is inserted into the sheath body, the inverted triangle protrusion is located at the rear end of the trapezoidal protrusion and abuts against the trapezoidal protrusion. Such a setting forms a secondary lock, due to the existence of the baffle, the entire sheath body cannot move forward, and when the CPA connector is inserted into the sheath body, it is not only fixed to the sheath body, but the inverted triangle protrusion also abuts against the rear end of the trapezoidal protrusion, so that the sheath body cannot move backward, and the secondary lock takes effect.

[0012] The front end of the trapezoidal protrusion is complementary to the rear end of the baffle; the rear end of the trapezoidal protrusion is complementary to the front end of the inverted triangle protrusion.

[0013] Compared with the prior art, the beneficial effects of the present invention are embodied in the following aspects:

[0014] (1) The guide groove between the guide protrusion of the CPA connector and the sheath body is provided to facilitate installation, and the above structure can prevent the CPA from falling off;

[0015] (2) The anti-drop protrusion and the side-drawing groove can prevent the CPA from being over-inserted backwards;

[0016] (3) A secondary lock structure is formed between the sheath body, the CPA connector and the socket body, which has a simple structure and has sufficient holding force. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure when the CPA connector and the sheath body of the present invention are separated;

[0018] Figure 2 This is a schematic diagram of the structure of the CPA connector and the sheath body of the present invention after installation;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the wiring harness connector of the present invention after installation.

[0020] Among them, 1 is the sheath body, 11 is the clamping plate, 12 is the side draw groove, 13 is the anti-slip lock, 14 is the guide groove, 15 is the trapezoidal protrusion, 16 is the opening, 2 is the CPA connector, 21 is the head, 211 is the side rib, 212 is the anti-slip protrusion, 213 is the connecting rib, 22 is the clamping part, 221 is the fixing part, 222 is the movable part, 23 is the reinforcing rib, 24 is the guide protrusion, 25 is the gap, 26 is the inverted triangle protrusion, 3 is the socket body, and 31 is the baffle. DETAILED DESCRIPTION

[0021] The following is a detailed description of an embodiment of the present invention. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiment.

[0022] Example 1

[0023] A CPA connector, the structure of which is as follows Figure 1 , Figure 2 As shown, the CPA connector 1 is inserted and fixed in the sheath body 1, and the CPA connector 2 includes a semi-frame-shaped head 21 and a clamping portion 22 integrally arranged in the middle of the head 21, the head 21 includes two parallel side ribs 211 and a connecting rib 213 whose two ends are respectively vertically connected to the two side ribs 211, and a plurality of anti-slip protrusions 212 are arranged on the outer sides of the two side ribs 211, the length direction of the clamping portion 22 is parallel to the side ribs 211, and one end of the clamping portion 22 is integrally connected to the connecting rib 213, and the bottom of the other end is provided with a downward inverted triangle protrusion ( Figure 1 Not shown, please refer to Figure 3 ).

[0024] The front ends of the upper surface of the sheath body 1 are provided with clamping plates 11, and each clamping plate 11 is provided with a side-drawing groove 12 matching the anti-dropping protrusion 212. Through the cooperation between the anti-dropping protrusion 212 and the side-drawing groove 12, when the CPA connector 2 is inserted backward, the anti-dropping protrusion 212 is inserted into the side-drawing groove 12, thereby preventing the CPA connector 2 from being excessively inserted backward.

[0025] An anti-slip lock 13 is provided between the tail of the card plate 11. The two sides of the tail of the anti-slip lock 13 are rotatably connected to the card plate 11 through a torsion spring. Two guide grooves 14 are provided in the middle of the anti-slip lock 13. When no force is applied, the anti-slip lock 13 is arranged obliquely upward from its tail to the head 21.

[0026] The upper surface of the clamping portion 22 is provided with two guide protrusions 24 matching the guide groove 14, the length direction of the guide protrusion 24 is parallel to the side rib 211, and when the anti-slip protrusion 212 is clamped in the side draw groove 12, the top of the head 21 of the guide protrusion 24 abuts against the tail of the anti-slip lock 13. When the CPA connector 2 is gradually inserted into the ferrule body backward, the guide protrusion 24 moves along the guide groove 14 and gradually pushes the anti-slip lock 13, and the anti-slip lock 13 gradually changes from being set obliquely upward to being set horizontally, until the two guide protrusions 24 pass through the guide groove 14, and the anti-slip lock 13 changes from being set obliquely upward again under the action of the torsion spring, so as to abut against the front end of the guide protrusion 24. Without opening the anti-slip lock 13, the entire CPA connector 2 cannot move forward. At this time, the entire CPA connector 2 can neither move forward nor move backward, that is, it is fixed in the sheath body 1.

[0027] The clamping portion 22 includes a peripheral fixed portion 221 and a middle movable portion 222, the movable portion 222 and the fixed portion 221 are integrated, and there are gaps 25 between the three sides of the movable portion 222 and the fixed portion 221, the two sides of the movable portion 222 are flush with the two guide protrusions 24, and the inverted triangle protrusion 26 is arranged at the bottom of the movable portion 222. This arrangement enables the movable portion 222 to have a certain upward and downward bounce performance.

[0028] A reinforcing rib 23 is provided at the connection between the clamping portion 22 and the head portion 21 .

[0029] The sheath body 2 is provided with an opening 16 at the rear end of the anti-slip lock 3, through which the naked eye can clearly observe whether the sheath body 1 and the CPA connector 2 are fully matched. The installation method of this structure is a one-step installation, which is more convenient than the three-piece assembly on the market, and the mechanical assembly is more convenient and quick, and the quality is easier to control.

[0030] A wiring harness connector, the wiring harness connector comprises a socket body 3, a CPA connector 2 and a sheath body 1, which is connected as follows Figure 3As shown, the socket body 3 is inserted into the sheath body 1, a trapezoidal protrusion 15 is provided in the sheath body 1, and a baffle 31 is provided in the middle of the socket body 3. When the socket body 3 and the sheath body 1 are installed, the baffle 31 is located at the front end of the trapezoidal protrusion 15 and abuts against the trapezoidal protrusion 15. When the CPA connector 2 is inserted into the sheath body 1, the inverted triangle protrusion 26 is located at the rear end of the trapezoidal protrusion 15 and abuts against the trapezoidal protrusion 15. Such a setting forms a secondary lock. Due to the existence of the baffle 31, the entire sheath body 1 cannot move forward. When the CPA connector 2 is inserted into the sheath body 1, it is not only fixed to the sheath body 1, but the inverted triangle protrusion 26 also abuts against the rear end of the trapezoidal protrusion 15, so that the sheath body 1 cannot move backward, and the secondary lock takes effect.

[0031] The front end of the trapezoidal protrusion 15 is complementary to the rear end of the baffle 31 ; the rear end of the trapezoidal protrusion 15 is complementary to the front end of the inverted triangle protrusion 26 .

Claims

1. A CPA connector, which is inserted and fixed in a sheath body, characterized in that: The CPA connector includes a semi-frame-shaped head and a clamping portion integrally arranged in the middle of the head, the head includes two parallel side ribs and a connecting rib whose two ends are respectively vertically connected to the two side ribs, and a plurality of anti-slip protrusions are arranged on the outer sides of the two side ribs, the length direction of the clamping portion is parallel to the side ribs, and one end of the clamping portion is integrally connected to the connecting rib, and a downward inverted triangle protrusion is arranged at the bottom of the other end, The front ends of the upper surface of the sheath body are provided with clamping plates, and each of the clamping plates is provided with a side draw groove matching the anti-drop protrusion. An anti-slip lock is provided between the tails of the cardboard, and the two sides of the tail of the anti-slip lock are rotatably connected with the cardboard through a torsion spring. Two guide grooves are provided in the middle of the anti-slip lock. In the unforced state, the anti-slip lock is arranged obliquely upward from the tail to the head. The upper surface of the clamping part is provided with two guide protrusions matching the guide grooves, the length direction of the guide protrusions is parallel to the side ribs, and when the anti-slip protrusion is clamped in the side withdrawal groove, the top of the head of the guide protrusion abuts against the tail of the anti-slip lock. The clamping part includes a peripheral fixed part and a middle movable part, the movable part and the fixed part are integrated, and there are gaps between the three sides of the movable part and the fixed part, the two sides of the movable part are flush with the two guide protrusions, and the inverted triangle protrusion is arranged at the bottom of the movable part; A reinforcing rib is provided at the connection between the clamping portion and the head.

2. A wiring harness connector provided with the CPA connector as claimed in claim 1, the wiring harness connector comprising a socket body and a sheath body, characterized in that: The socket body is inserted into the sheath body, a trapezoidal protrusion is provided in the sheath body, and a baffle is provided in the middle of the socket body. When the socket body and the sheath body are installed, the baffle is located at the front end of the trapezoidal protrusion and abuts against the trapezoidal protrusion. When the CPA connector is inserted into the sheath body, the inverted triangle protrusion is located at the rear end of the trapezoidal protrusion and abuts against the trapezoidal protrusion. The front end of the trapezoidal protrusion is complementary to the rear end of the baffle; the rear end of the trapezoidal protrusion is complementary to the front end of the inverted triangle protrusion.

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