Connector with CPA structure and connector assembly

Abstract

The utility model discloses a connector with a CPA structure and a connector assembly, a CPA piece is arranged between two slide rails at the top of a clamping arm of the connector in a sliding manner, a lock piece is arranged on a cross beam between the two slide rails, and in the process that the CPA piece is arranged in the two slide rails, a preassembled bulge and a locking bulge are matched with the lock piece in sequence, so that the CPA piece can be assembled in the two slide rails. According to the connector and the connector assembly provided by the utility model, the CPA piece can be positioned at the preassembling position and the locking position, and compared with the existing connector structure, the CPA piece in the connector and the connector assembly provided by the utility model has the advantages that the unlocking is convenient, and the CPA piece can be repeatedly unlocked for multiple times and is not easy to fail.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a connector and a connector assembly with a CPA structure. Background Art

[0002] With the rapid development of existing automotive technologies and the increasing trend towards electrification and intelligence, as one of the important components for interconnecting automotive electrification and intelligent systems, connectors have put forward new requirements for the safety and reliability of products. CPA (Connector Position Assurance) ensures that the positions of the male and female connectors do not easily withdraw after mating, and it is a key component to ensure the safety and reliability of the connectors.

[0003] Generally, the sliding design of the CPA part of a connector is on the female end, and there are a pre-installed position and a locking position inside the female end. Protrusions are provided on the side walls on both sides of the sliding direction of the CPA part. During the sliding process of the CPA part, through the engagement of the protrusions with the protrusions / grooves provided on the connector sheath, effective positioning of the CPA part at the pre-installed position and the locking position is achieved. However, the above connector structure has the following defects when in use: 1. When the CPA part is in the pre-installed position, it is not easy to remove from the connector sheath, and the CPA part is easily damaged during product repair; 2. Repeated unlocking after the male and female ends of the connector are mated will cause the CPA part to deform, making its unlocking force very small, and further causing the male and female ends of the connector to be easily separated when subjected to a large external force. Summary of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide a connector and a connector assembly with a CPA structure to solve the technical problems mentioned in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: A connector with a CPA structure is cooperatively connected with a mating connector. The connector includes a sheath, a clamping arm provided on one side wall of the sheath and cooperatively connected with the mating connector by clamping, and a CPA part. On both sides of the top of the clamping arm, two sliding rails are extended along the direction in which the mating connector is inserted into the connector, and the two sliding rails are connected by a cross beam. The CPA part is slidably arranged between the two sliding rails and has a pre-installed position and a locking position;

[0006] Pre-installed protrusions and locking protrusions are provided on the end face of the CPA part facing the cross beam, and the locking protrusions and the pre-installed protrusions are arranged in sequence along the direction in which the CPA part is inserted into the two sliding rails; A locking part is provided on the cross beam. During the process of the CPA part being inserted into the two sliding rails, the pre-installed protrusions and the locking protrusions are successively cooperated with the locking part to position the pre-installed position and the locking position of the CPA part.

[0007] In some embodiments, the locking member is a locking arm extending on the cross beam in a direction opposite to the direction in which the CPA member is inserted into the two slide rails. During the process of inserting the CPA member into the two slide rails, the preloading protrusion and the locking protrusion are successively engaged with the locking arm to position the preloading position and the locking position of the CPA member.

[0008] In some embodiments, a pressing member is arranged on the cross beam extending in the direction in which the CPA member is inserted into the two slide rails. By pressing the pressing member, the locking arm arranged on the other side of the cross beam can be lifted to unlock the CPA member at the preloading position and the locking position.

[0009] In some embodiments, the pressing member and the locking arm are on opposite sides of the cross beam, and the free end of the pressing member is inclined in a direction away from the CPA member.

[0010] In some embodiments, a locking groove for engaging with the mating connector is formed on the locking arm, and a first stopping protrusion is arranged on the end face of the CPA member facing away from the cross beam. When the CPA member is in the preloading position, the first stopping protrusion is located in the locking groove and is in abutting cooperation with the front end of the locking groove; after the connector is connected to the mating connector, the first stopping protrusion is pushed out of the locking groove by the mating connector, and thus the switching of the CPA member from the preloading position to the locking position can be realized.

[0011] In some embodiments, the CPA member includes a plate-shaped main body and a tail seat integrally provided with the main body. The tail seat extends on both sides of the main body and is provided with auxiliary tracks that slidably cooperate with the two slide rails.

[0012] In some embodiments, at least a part of the end of the main body away from the tail seat is inclined in the direction of the sheath.

[0013] In some embodiments, it further includes a housing. At least a part of the housing is installed outside the sheath. A second stopping protrusion is arranged on the inner wall of the housing, and a third stopping protrusion is further arranged on the end face of the CPA member facing the cross beam. When the CPA member is in the locking position, the second stopping protrusion is located directly above the third stopping protrusion to prevent the CPA member from moving upward unexpectedly.

[0014] A connector assembly of the present utility model includes the connector and a mating connector that is connected to the connector in a mating manner. A locking protrusion is arranged on one of the side walls of the mating connector, and a locking groove for engaging with the locking protrusion is formed on the locking arm.

[0015] In some embodiments, a first stop projection is provided on the end face of the CPA member departing from the cross beam. When the CPA member is in the pre-installed position, the first stop projection is located in the clamping groove and is in stop cooperation with the front end of the clamping groove. After the connector is cooperatively connected with the mating connector, the clamping projection enters the clamping groove and ejects the first stop projection from the clamping groove, thereby realizing the switching of the CPA member from the pre-installed position to the locked position.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: The CPA member of the present utility model is slidably arranged between two slide rails on the top of the connector clamping arm, and a locking member is arranged on the cross beam between the two slide rails. During the process of the CPA member being inserted into the two slide rails, the pre-installed projection and the locking projection are successively cooperated with the locking member to position the pre-installed position and the locked position of the CPA member. Compared with the existing connector structure, the CPA member in the connector and the connector assembly provided by the present utility model has the advantages of convenient unlocking and not being easily invalidated after repeated unlocking for multiple times. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings incorporated in and forming a part of this specification illustrate embodiments of the present utility model and, together with the description, are used to explain the principles of the present utility model.

[0018] Figure 1 is a schematic structural diagram of a connector with a CPA structure provided by the present utility model;

[0019] Figure 2 is Figure 1 a schematic structural diagram of the connector shown after removing the housing;

[0020] Figure 3 is Figure 1 a schematic structural diagram of the sheath in the connector shown;

[0021] Figure 4 is Figure 1 a schematic structural diagram of the CPA member in the connector shown;

[0022] Figure 5 is a schematic structural diagram of the connector assembly provided by the present utility model when the CPA member is in the pre-installed position;

[0023] Figure 6 is a schematic structural diagram of the connector assembly provided by the present utility model when the CPA member is in the locked position.

[0024] The labels in the figures are as follows:

[0025] 1. Connector; 2. Mating connector; 3. Clamping projection;

[0026] 10. Sheath;

[0027] 20. Clamping arm; 201. Slide rail; 202. Cross beam; 203. Clamping groove;

[0028] 30. CPA part; 301. Pre-installed protrusion; 302. Locking protrusion; 303. First stop protrusion; 304. Main body; 305. Tailstock; 306. Auxiliary track; 307. Third stop protrusion;

[0029] 40. Locking part;

[0030] 50. Pressing part;

[0031] 60. Outer shell; 601. Second stop protrusion;

[0032] 70. Direction for mating connector to be inserted into the connector;

[0033] 80. Direction for CPA part to be inserted into two slide rails. Detailed implementation mode

[0034] Now, various exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0035] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way a limitation on the present invention or its application or use.

[0036] Techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be regarded as part of the specification.

[0037] In all the examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments may have different values.

[0038] A connector with a CPA structure is connected in cooperation with a mating connector 2. As Figures 1 - 4 shown, the connector 1 includes a sheath 10, a clamping arm 20 disposed on one side wall of the sheath 10 and engaged with the mating connector 2 in a clamping manner, and a CPA part 30. A clamping protrusion 3 is disposed on one side wall of the mating connector 2, and a clamping groove 203 engaged with the clamping protrusion 3 is formed on the clamping arm 20. After the connector 1 and the mating connector 2 are connected in cooperation, the clamping protrusion 3 enters the clamping groove 203 to achieve a primary locking between the two.

[0039] As Figures 1 - 4As shown in the figure, on both sides of the top of the clamping arm 20 of the present utility model, two slide rails 201 are arranged to extend along the direction 70 in which the mating connector is inserted into the connector. The two slide rails 201 are connected by a cross beam 202. The CPA part 30 is slidably arranged between the two slide rails 201 and has a pre-installed position and a locked position; on the end face of the CPA part 30 facing the cross beam 202, a pre-installed protrusion 301 and a locking protrusion 302 are arranged, and the locking protrusion 302 and the pre-installed protrusion 301 are arranged in sequence along the direction 80 in which the CPA part is inserted into the two slide rails; a locking member 40 is arranged on the cross beam 202. During the process of the CPA part 30 being inserted into the two slide rails 201, the pre-installed protrusion 301 and the locking protrusion 302 are successively engaged with the locking member 40 to position the pre-installed position and the locked position of the CPA part 30. In this embodiment, as Figure 3 shown, the provided locking member 40 is a locking arm arranged on the cross beam 202 to extend along the opposite direction of the insertion of the CPA part into the two slide rails. A locking hook is arranged at the end of the free end of the locking arm. During the process of the CPA part 30 being inserted into the two slide rails, the pre-installed protrusion 301 and the locking protrusion 302 are successively engaged with the locking hook arranged on the locking arm to position the pre-installed position and the locked position of the CPA part 30. Further, as Figure 3 shown, a pressing member 50 is arranged on the cross beam 202 to extend along the direction 80 in which the CPA part is inserted into the two slide rails. The pressing member 50 and the locking arm are on opposite sides of the cross beam 202. At this time, the pressing member 50, the cross beam 202 and the locking arm form a pressing and flipping structure. By pressing the pressing member 50, the locking arm arranged on the other side of the cross beam 202 can be lifted to unlock the CPA part 30 at the pre-installed position and the locked position. When it is necessary to switch the CPA part 30 from the locked position to the pre-installed position, or when it is necessary to remove the CPA part 30 from the sheath 10, press the pressing member 50 to lift the locking arm arranged on the other side of the cross beam 202, and then pull the CPA part 30 backward to perform corresponding actions according to requirements. Compared with the existing connector structure, the CPA part in the connector and the connector assembly provided by the present utility model has the advantages of convenient unlocking, and can be unlocked repeatedly for many times without easy failure.

[0040] Further, as Figure 3 shown, the pressing member 50 and the locking arm are on opposite sides of the cross beam 202, and the free end of the pressing member 50 is inclined away from the CPA part 30, so as to facilitate pressing the pressing member 50 when unlocking the CPA part 30.

[0041] In an embodiment, as Figure 3 and Figure 4As shown, a clamping groove 203 for clamping and cooperating with the mating connector 2 is formed on the clamping arm 20. A first stop projection 303 is provided on the end face of the CPA member 30 facing away from the cross beam 202. When the CPA member 30 is in the pre-installed position, the first stop projection 303 is located within the clamping groove 203 and is in stop cooperation with the front end of the clamping groove 203. After the connector 1 is cooperatively connected with the mating connector 2, the first stop projection 303 is pushed out of the clamping groove 203 by the mating connector 2, specifically, is pushed out of the clamping groove 203 by the clamping projection 3 of the mating connector 2. For details, please refer to Figure 5 , and then push the CPA member 30 forward so that the first stop projection 303 passes over the front end of the clamping groove 203 and is clamped on the front side of the clamping arm 20. For details, please refer to Figure 6 , thereby realizing the switching of the CPA member 30 from the pre-installed position to the locked position. At this time, the CPA member 30 realizes the position holding of the first lock between the connector 1 and the mating connector 2 through the first stop projection 303. Further, as shown in Figure 1 and Figure 4 , the connector 1 further includes a housing 60. The housing 60 is at least partially installed outside the sheath 10. A second stop projection 601 is provided on the inner wall of the housing 60. A third stop projection 307 is further provided on the end face of the CPA member 30 facing the cross beam 202. When the CPA member 30 is in the locked position, the second stop projection 601 is located directly above the third stop projection 307. For details, please refer to Figure 6 , thereby preventing the CPA member 30 from unexpectedly moving upward when subjected to an external force, and further preventing the CPA member 30 from failing when the male and female ends of the connector are subjected to a large external force.

[0042] In an embodiment, as shown in Figure 4 , the CPA member 30 includes a plate-shaped main body 304 and a tail seat 305 integrally provided with the main body 304. The tail seat 305 extends on both sides of the main body 304 and is provided with auxiliary tracks 306 that slidably cooperate with two slide rails 201. After the CPA member 30 is installed in the two slide rails 201, the main body 304 is slidably arranged inside the two slide rails 201, and the auxiliary tracks 306 are slidably arranged outside the two slide rails 201. The setting of the auxiliary tracks 306 can, on the one hand, position the installation of the CPA member 30, and on the other hand, ensure the stability of the CPA member 30 when sliding on the two slide rails 201 after the CPA member 30 is installed in the two slide rails 201. For details, please refer to Figure 2 .

[0043] Further, as shown in Figure 4 and Figure 5As shown, one end of the main body 304 away from the tailstock 305 is inclined at least partially in the direction of the sheath 10, so as to ensure that after the CPA part 30 is loaded into the two slide rails, the first stop protrusion 303 can smoothly enter the clamping groove 203 and be in stop cooperation with the front end of the clamping groove 203.

[0044] The present utility model further provides a connector assembly, as Figure 5 and Figure 6 shown, including a connector 1 and a mating connector 2 that is cooperatively connected to the connector 1. A clamping protrusion 3 is provided on one side wall of the mating connector 2, and a clamping groove 203 that is in clamping cooperation with the clamping protrusion 3 is formed in the clamping arm 20. After the connector 1 and the mating connector 2 are cooperatively connected, the clamping protrusion 3 enters the clamping groove 203 to achieve a primary locking between the two.

[0045] In an embodiment, a first stop protrusion 303 is provided on the end face of the CPA part 30 facing away from the cross beam 202. When the CPA part 30 is in the pre-installed position, the first stop protrusion 303 is located in the clamping groove 203 and is in stop cooperation with the front end of the clamping groove 203; after the connector 1 and the mating connector 2 are cooperatively connected, the clamping protrusion 3 enters the clamping groove 203 and ejects the first stop protrusion 303 from the clamping groove 203, thereby realizing the switching of the CPA part 30 from the pre-installed position to the locked position. At this time, the CPA part 30 realizes the position holding of the primary lock between the connector 1 and the mating connector 2 through the first stop protrusion 303. Figure 5 and Figure 6 are respectively schematic structural diagrams of the connector assembly when the CPA part 30 is in the pre-installed position and the locked position.

[0046] Although some specific embodiments of the present utility model have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present utility model. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present utility model. The scope of the present utility model is defined by the appended claims.

Claims

1. A connector with a CPA structure is connected in cooperation with a mating connector. The connector includes a sheath, a clamping arm disposed on one side wall of the sheath and clamped in cooperation with the mating connector, and a CPA member, and is characterized in that: Two slide rails are provided on both sides of the top of the clamping arm along the direction in which the mating connector is inserted into the connector. The two slide rails are connected by a crossbeam. The CPA member is slidably provided between the two slide rails and has a pre-installed position and a locked position. A pre-installation protrusion and a locking protrusion are provided on the end surface of the CPA component facing the crossbeam, and the locking protrusion and the pre-installation protrusion are arranged in sequence along the direction in which the CPA component is installed into the two slide rails; a locking piece is provided on the crossbeam, and during the process of installing the CPA component into the two slide rails, the pre-installation protrusion and the locking protrusion successively cooperate with the locking piece to position the pre-installation position and the locking position of the CPA component.

2. The connector with a CPA structure according to claim 1, wherein: The locking member is a locking arm that extends along the opposite direction of the CPA member being installed into the two slide rails and is arranged on the crossbeam. During the process of installing the CPA member into the two slide rails, the pre-installation protrusion and the locking protrusion are successively engaged with the locking arm to position the pre-installation position and the locking position of the CPA member.

3. The connector with a CPA structure according to claim 2, characterized in that: A pressing piece is provided on the crossbeam extending along the direction in which the CPA part is installed into the two slide rails. By pressing the pressing piece, the locking arm provided on the other side of the crossbeam can be lifted to unlock the CPA part in the pre-installed position and the locked position.

4. The connector with a CPA structure according to claim 3, wherein: The pressing member and the locking arm are located on opposite sides of the crossbeam, and the free end of the pressing member is tilted in a direction away from the CPA member.

5. The connector with a CPA structure according to claim 1, wherein: The clamping arm is provided with a clamping groove for clamping with the mating connector, and a first stop protrusion is provided on the end surface of the CPA component facing away from the crossbeam. When the CPA component is in the pre-installed position, the first stop protrusion is located in the clamping groove and is engaged with the front end of the clamping groove; after the connector is mated and connected with the mating connector, the first stop protrusion is pushed out of the clamping groove by the mating connector, thereby realizing the switching of the CPA component from the pre-installed position to the locked position.

6. The connector with a CPA structure according to claim 1, wherein: The CPA component includes a plate-shaped main body and a tailstock integrally provided with the main body. The tailstock is provided with auxiliary rails extending from both sides of the main body and slidingly matched with two slide rails.

7. The connector with a CPA structure according to claim 6, characterized in that: At least a portion of an end of the main body away from the tailstock is tilted toward the direction where the sheath is located.

8. The connector with a CPA structure according to claim 1, wherein: The CPA component further includes a housing that is at least partially mounted on the outside of the sheath. A second stop protrusion is provided on the inner wall of the housing. A third stop protrusion is also provided on the end surface of the CPA component facing the crossbeam. When the CPA component is in the locked position, the second stop protrusion is located directly above the third stop protrusion to prevent the CPA component from unexpectedly moving upward.

9. A connector assembly, comprising the connector according to any one of claims 1-8 and a mating connector that is cooperatively connected to the connector, characterized in that: A clamping protrusion is provided on one of the side walls of the mating connector, and a clamping groove for clamping with the clamping protrusion is provided on the clamping arm.

10. A connector assembly according to claim 9, wherein: A first stop protrusion is provided on the end surface of the CPA component facing away from the crossbeam. When the CPA component is in the pre-installed position, the first stop protrusion is located in the clamping groove and engages with the front end stop of the clamping groove; after the connector is mated and connected with the mating connector, the clamping protrusion enters the clamping groove and pushes the first stop protrusion out of the clamping groove, thereby realizing the switching of the CPA component from the pre-installed position to the locked position.

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