CN221353316U

CN221353316U - Connector with secondary locking structure

Info

Publication number: CN221353316U
Application number: CN202323186513.XU
Authority: CN
Inventors: 刘志淼; 王浩
Original assignee: Yancheng Shiming Electronic Devices Co ltd; Delphi Electrical Centers Shanghai Co Ltd
Current assignee: Yancheng Shiming Electronic Devices Co ltd; Delphi Electrical Centers Shanghai Co Ltd
Filing date: 2023-11-24
Publication date: 2024-07-16
Anticipated expiration: 2033-11-24

Abstract

The utility model relates to a connector with a secondary locking structure, which comprises a connector main body, a locking mechanism and a locking mechanism, wherein the connector main body comprises a plurality of first clamping grooves and second clamping grooves; the primary locking structure is clamped with one end of the connector main body; the secondary locking structure comprises a plurality of cantilevers and elastic parts connected with the cantilevers; when the secondary locking structure is inserted into the connector main body, the cantilever is clamped in the first clamping groove, and when the elastic part deforms towards the central axis direction of the second clamping groove, the cantilever slides in the second clamping groove. Compared with the prior art, the utility model has the advantages of high locking force, capability of avoiding false closing and the like.

Description

Connector with secondary locking structure

Technical Field

The present utility model relates to the field of electrical connectors, and more particularly, to a connector with a secondary locking structure.

Background

The connector secondary locking structure (Connector Position Assurance, CPA for short) is a buckle structure for increasing the strength of the connector locking device. CPA can effectively protect reliable connection of connector plug, socket, prevents the load plug incident that unexpected pine takes off or contact failure caused in the car operation in-process, CPA belongs to supplementary locking structure, is through the requirement with main locking structure cooperation in order to reach reliable locking. The working principle of the CPA is that after the main locking structure is locked, the CPA is used for assisting in locking, at the moment, the main locking structure is not easy to be influenced by external environment to loosen (except for failure of the main locking structure), the CPA is required to be unlocked during unlocking to be normally unlocked, and the locking structure used under severe conditions can be met.

Most of the current CPA designs are designed to meet various force requirements through the cantilever beam or the elastic arm of the simple beam of the CPA. The elastic arm is easy to deform or break, the stability is not high, a lot of force requirements cannot be met, and the force requirement of the GMW 3191 standard 110N min is hardly met under the condition that arbitration is not matched. At the same time, there is also a risk of the CPA being erroneously closed during transport.

Patent CN202210184858.2 discloses a terminal with a secondary locking structure and a connector thereof, the terminal with the secondary locking structure comprises a terminal box body and a terminal crimping tail, the terminal box body is respectively provided with a terminal hanging thorn and a secondary locking structure, an electric contact structure is arranged in the terminal box body, and a wire is inserted into the terminal box body and connected with the electric contact structure; the terminal crimping tail is provided with a crimping structure, and the lead is crimped in the crimping structure; the connector comprises a sheath structure and a terminal with a secondary locking structure, wherein the terminal is assembled in an outer shell of the sheath structure, locking structures matched with the terminal hanging thorns and the secondary locking structure are respectively arranged on the outer shell, and the terminal hanging thorns and the secondary locking structure are respectively hung on the corresponding locking structures after the terminal is assembled in place with the sheath structure. The application utilizes TRIZ combination principle to combine independent TPA and terminal, and can reach the purpose that increases the terminal and keep the power in the sheath through the cooperation of terminal self secondary locking structure and sheath. But the core of this application is to improve the terminal retention force and is not concerned with CPA locking force.

Disclosure of utility model

The present utility model is directed to a connector with a secondary locking structure, which overcomes the above-mentioned drawbacks of the prior art.

The aim of the utility model can be achieved by the following technical scheme:

The utility model provides a connector with a secondary locking structure, which comprises:

the connector body comprises a plurality of first clamping grooves and second clamping grooves;

the primary locking structure is clamped with one end of the connector main body; and

The secondary locking structure comprises a plurality of cantilevers and elastic parts connected with the cantilevers;

When the secondary locking structure is inserted into the connector main body, the cantilever is clamped in the first clamping groove, and when the elastic part deforms towards the central axis direction of the second clamping groove, the cantilever slides in the second clamping groove and is clamped at the tail end of the second clamping groove.

The working principle of the utility model is as follows:

According to the first aspect, the primary locking structure is clamped with the connector body to achieve primary locking, the secondary locking structure is clamped with the connector body to achieve secondary locking, when the cantilever of the secondary locking structure is inserted into the connector body, the width between the two cantilevers is consistent with the width of the two first clamping grooves of the connector body, the cantilever is clamped with the first clamping grooves, the elastic part connected with the cantilever can deform (the material of the elastic part is a common technology in the field), when the connector body is provided with the matched end, the matched end applies a force towards the central axis of the connector body to enable the elastic part to deform towards the central axis direction of the second clamping grooves, and therefore the cantilever is separated from the first clamping grooves, and at the moment, the cantilever can slide in the second clamping grooves.

In a second aspect, the secondary locking structure is divided into a connecting portion, a cross insertion portion, an elastic portion and a cantilever, wherein the elastic portion is disposed at two sides of the connecting portion, the cross insertion portion is connected with the connecting portion and slides in the second clamping groove, the cross insertion portion is interposed between the two elastic portions, and in practice, the cross insertion portion is not connected with the elastic portions or the cantilever at two sides. In addition, the elastic part is an elastic connecting part and an elastic deformation part, the elastic deformation part protrudes towards the direction away from the connector main body, and the elastic connecting part and the elastic deformation part are not in the same straight line, so that a contact surface is formed on one side surface of each of the elastic connecting part and the elastic deformation part, and the contact surface is connected with the cantilever, wherein the connecting mode is detachable and connected, and the elastic connecting part and the elastic deformation part can be integrally formed. The cantilever is divided into a contact section and a gradual change section, wherein the contact section is connected with the contact surface, the section of the gradual change section is gradually increased, and the top of the contact section does not exceed the first insertion part.

Finally, the first clamping groove is provided with a sliding groove and an interference surface, wherein the transition section slides in the sliding groove and finally props against the interference surface, so that the cantilever is clamped in the first clamping groove. The second clamping groove is provided with a first sliding surface and a second sliding surface, and when the cantilever is clamped in the first clamping groove, the cantilever is positioned above the first sliding surface; when the connector main body is provided with the matched end, the elastic part deforms towards the central axis direction of the second clamping groove, the cantilever can slide in the second clamping groove, and the cantilever is positioned above the second sliding surface.

Compared with the prior art, the utility model has the following advantages:

(1) The two cantilevers of the secondary locking structure and the interference surface of the connector main body form hard interference, so that the cantilevers are clamped in the first clamping groove, and high locking force can be provided.

(2) When the connector is not provided with the matched end, the secondary locking structure can not be clamped in the first clamping groove and can not slide in the second clamping groove, so that the secondary locking structure is prevented from being closed by mistake in the transportation process.

Drawings

Fig. 1 is an exploded view of a connector structure according to the present utility model.

Fig. 2 is a schematic view of a secondary locking structure of the connector of the present utility model.

Fig. 3 is a schematic view of a connector body of the connector of the present utility model.

The figure indicates:

The device comprises a 1-secondary locking structure, a 101-cantilever, a 102-elastic part, a 103-connecting part, a 104-cross inserting part, a 105-first inserting part, a 106-second inserting part, a 107-elastic connecting part, a 108-elastic deformation part, a 109-contact surface, a 110-contact section, a 111-gradual change section, a 2-connector body, a 201-first clamping groove, a 202-second clamping groove, a 203-sliding groove, a 204-interference surface, a 205-first sliding surface, a 206-second sliding surface, a 207-third clamping groove, a 3-primary locking structure and a 301-clamping part.

Detailed Description

The utility model will now be described in detail with reference to the drawings and specific examples. The present embodiment is implemented on the premise of the technical scheme of the present utility model, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present utility model is not limited to the following examples.

Features such as a part model, a material name, a connection structure, a control method and the like which are not explicitly described in the technical scheme are all regarded as common technical features disclosed in the prior art.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "vertical," "horizontal," "top," "bottom," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection can be bolt connection or welding connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In order to provide a high locking force for the secondary locking structure and prevent the secondary locking structure from closing during transportation, the present utility model provides a connector with a secondary locking structure, the structure of which is shown in fig. 1 to 3, comprising:

The connector body 2 comprises a plurality of first clamping grooves 201 and second clamping grooves 202;

The primary locking structure 3 is clamped with one end of the connector main body 2; and

The secondary locking structure 1 comprises a plurality of cantilevers 101 and an elastic part 102 connected with the cantilevers 101;

When the secondary locking structure 1 is inserted into the connector main body 2, the cantilever 101 is clamped in the first clamping groove 201, and when the elastic portion 102 deforms toward the central axis direction of the second clamping groove 202, the cantilever 101 slides in the second clamping groove 202 and is clamped at the end of the second clamping groove 202.

In some specific embodiments, referring to fig. 2 and 3, the secondary locking structure 1 further includes:

a connecting portion 103 having elastic portions 102 symmetrically arranged on both sides thereof; and

A cross insertion portion 104 including a first insertion portion 105 and a second insertion portion 106 perpendicular to the first insertion portion 105;

The cantilever 101 is connected to the elastic portion 102, and the tip end thereof does not exceed the first insertion portion 105, and the cross insertion portion 104 slides in the second clamping groove 202.

In a more specific embodiment, referring to fig. 2 and 3, the elastic portion 102 includes:

an elastic connection portion 107 connected to the secondary lock structure body 103;

an elastic deformation portion 108 formed integrally with the first portion 107 and not on a straight line; and

And a contact surface 109 formed by intersecting one side surface of the elastic connection portion 107 and one side surface of the elastic deformation portion 108, wherein the cantilever 101 is mounted on the contact surface 106.

In a more specific embodiment, referring again to fig. 2 and 3, the cantilever 101 includes:

A contact section 110 connected to the contact surface 109; and

The cross section of the transition section 111 gradually increases along the direction away from the contact section 110, and the distance between the edge portion of the transition section and the central axis of the second clamping groove 202 is smaller than the distance between the edge portion of the elastic deformation portion 108 and the central axis of the second clamping groove 202.

In more specific embodiments, referring to fig. 2 and 3 again, the distance between the two transition sections 111 is consistent with the width between the two first clamping grooves 201.

In a more specific embodiment, referring to fig. 2 and 3, the first clamping groove 201 includes:

A sliding groove 203 which is symmetrically arranged on both sides of the connector body 2 and whose height in the vertical direction is not less than the maximum width of the cantilever 101; and

An interference surface 204 provided inside the slide groove 203;

the cantilever 101 abuts against the interference surface 204 to be clamped in the first clamping groove 201.

In a more specific embodiment, referring to fig. 2 and 3, the second clamping groove 202 includes:

A first sliding surface 205 interposed between the two sliding grooves 203; and

A second sliding surface 206 that is in contact with the first sliding surface 205;

the cantilever 101 is located above the first sliding surface 205 when it abuts the interference surface 204; when the cantilever 101 slides in the second clamping groove 202, the cantilever is positioned above the first sliding surface 205.

In some specific embodiments, referring to fig. 1, 2 and 3, the connector body 2 further includes a plurality of third clamping grooves 207, and the primary locking structure 3 includes a plurality of clamping portions 301, and the clamping portions 301 are clamped in the third clamping grooves 207.

In a more specific embodiment, referring again to fig. 2 and 3, the cantilever 101 is integrally formed with the contact surface 106.

In a more specific embodiment, referring again to fig. 2 and 3, the cantilever 101 is detachably connected to the contact surface 106.

The above embodiments may be implemented singly or in any combination of two or more.

The above embodiments are described in more detail below in connection with specific examples.

Example 1

In order to make the secondary locking structure provide high locking force and prevent the secondary locking structure from closing during transportation, the present embodiment provides a connector with the secondary locking structure, the structure of which is shown in fig. 1 to 3, comprising:

A connector body 2 including two first clamping grooves 201 and a second clamping groove 202;

A secondary locking structure 1 including two cantilevers 101, and two elastic parts 102 connected to the cantilevers 101;

When the secondary locking structure 1 is inserted into the connector main body 2, the cantilever 101 is clamped in the first clamping groove 201, and when the elastic portion 102 deforms toward the central axis direction of the second clamping groove 202, the cantilever 101 slides in the second clamping groove 202 and is clamped at the tail end of the second clamping groove 202.

Referring to fig. 2 and 3, the secondary locking structure 1 further includes:

The cantilever 101 is connected to the elastic portion 102, and the tip thereof does not exceed the first insertion portion 105, and the cross insertion portion 104 slides in the second engagement groove 202.

Referring to fig. 2 and 3, the elastic portion 102 includes:

A contact surface 109 formed by intersecting one side surface of the elastic connection portion 107 and one side surface of the elastic deformation portion 108, and the cantilever 101 is attached to the contact surface 106.

Referring again to fig. 2 and 3, the cantilever 101 includes:

A contact section 110 connected to the contact surface 109; and

Referring to fig. 2 and 3, the distance between the two transition sections 111 is consistent with the width between the two first clamping grooves 201.

Referring to fig. 2 and 3, the first clamping groove 201 includes:

An interference surface 204 provided inside the slide groove 203;

Referring to fig. 2 and 3, the second clamping groove 202 includes:

A first sliding surface 205 interposed between the two sliding grooves 203; and

When the cantilever 101 is propped against the interference surface 204, the cantilever is positioned above the first sliding surface 205; when the cantilever 101 slides in the second clamping groove 202, it is located above the first sliding surface 205.

Referring to fig. 1, 2 and 3, the connector body 2 further includes a plurality of third clamping grooves 207, and the primary locking structure 3 includes a plurality of clamping portions 301, wherein the clamping portions 301 are clamped in the third clamping grooves 207.

Referring again to fig. 2 and 3, the cantilever 101 is integrally formed with the contact surface 106.

The working principle of this embodiment is as follows:

In the first aspect, the locking portion 301 of the primary locking structure 3 is locked with the third locking groove 207 of the connector body 2 to achieve primary locking, and the secondary locking structure 1 is locked with the connector body 2 to achieve secondary locking, where when the cantilever arm 101 of the secondary locking structure 1 is inserted into the connector body 2, since the width between the two cantilever arms 101 is consistent with the width of the two first locking grooves 201 of the connector body 2, the cantilever arm 101 is locked with the first locking grooves 201, and further since the elastic portion 102 connected with the cantilever arm 101 can deform, when the mating end is mounted on the connector body 2, the mating end applies a force to the elastic portion 102 towards the central axis of the connector body 2 to deform the elastic portion 102 towards the central axis of the second locking groove 202, and therefore, the cantilever arm 101 is separated from the first locking groove 201, and at this time, the cantilever arm 101 can slide in the second locking groove 202.

In the second aspect, the secondary locking structure 1 is divided into a connecting portion 103, a cross insertion portion 104, an elastic portion 102, and a cantilever 101, wherein the elastic portions 102 are disposed at two sides of the connecting portion 103, the cross insertion portion 104 is connected with the connecting portion 103 and slides in the second clamping groove 202, and the cross insertion portion 104 is interposed between the two elastic portions 102, and in practice, the cross insertion portion 104 is not connected with the elastic portions 102 or the cantilever 101 at two sides. Further, the elastic portion 102 is divided into an elastic connection portion 107 and an elastic deformation portion 108, the elastic deformation portion 108 protrudes in a direction away from the connector body 2, and the elastic connection portion 107 and the elastic deformation portion 108 are not aligned, and therefore, each side surface of the elastic connection portion 107 and the elastic deformation portion 108 forms a contact surface 109, and the contact surface 109 is connected to the cantilever 101. And, the cantilever 101 is divided into a contact section 110, a transition section 111, wherein the contact section 110 is connected with the contact surface 109, the section of the transition section 111 is gradually increased, and the top of the transition section 111 does not exceed the first insertion portion 105.

Finally, the first clamping groove 201 has a sliding groove 203 and an interference surface 204, wherein the gradual section 111 slides in the sliding groove 203 and finally abuts against the interference surface 204, so that the cantilever 101 is clamped in the first clamping groove 201. The second clamping groove 202 has a first sliding surface 205 and a second sliding surface 206, and is located above the first sliding surface 205 when the cantilever 101 is clamped in the first clamping groove 201; when the connector body 2 is mounted on the mating end, the elastic portion 102 deforms toward the central axis direction of the second clamping groove 202, and the cantilever 101 can slide in the second clamping groove 202, and the cantilever 102 is located above the second sliding surface 207.

The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present utility model. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present utility model is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present utility model.

Claims

1. A connector having a secondary locking structure, comprising:

A connector body (2) comprising a plurality of first clamping grooves (201) and second clamping grooves (202);

The primary locking structure (3) is clamped with one end of the connector main body (2); and

The secondary locking structure (1) comprises a plurality of cantilevers (101) and elastic parts (102) connected with the cantilevers (101);

When the secondary locking structure (1) is inserted into the connector main body (2), the cantilever (101) is clamped in the first clamping groove (201), and when the elastic part (102) deforms towards the central axis direction of the second clamping groove (202), the cantilever (101) slides in the second clamping groove (202) and is clamped at the tail end of the second clamping groove (202).

2. Connector with secondary locking structure according to claim 1, characterized in that the secondary locking structure (1) further comprises:

A connecting part (103) with elastic parts (102) symmetrically arranged on both sides; and

A cross-shaped insertion section (104) that includes a first insertion section (105) and a second insertion section (106) perpendicular to the first insertion section (105);

The cantilever (101) is connected with the elastic part (102), the top end of the cantilever does not exceed the first inserting part (105), and the cross inserting part (104) slides in the second clamping groove (202).

3. A connector with a secondary locking structure according to claim 2, wherein the elastic portion (102) comprises:

an elastic connection part (107) connected with the secondary locking structure (1);

an elastic deformation portion (108) which is formed integrally with the first portion (107) and is not in a straight line; and

And a contact surface (109) formed by intersecting one side surface of the elastic connection portion (107) and one side surface of the elastic deformation portion (108), wherein the cantilever (101) is mounted on the contact surface (109).

4. A connector with a secondary locking structure according to claim 3, characterized in that the cantilever (101) comprises:

a contact section (110) which is connected to the contact surface (109); and

The section of the transition section (111) gradually increases along the direction away from the contact section (110), and the distance between the edge part of the transition section and the central axis of the second clamping groove (202) is smaller than the distance between the edge part of the elastic deformation part (108) and the central axis of the second clamping groove (202).

5. The connector with the secondary locking structure according to claim 4, wherein a distance between the two transition sections (111) is identical to a width between the two first clamping grooves (201).

6. The connector with the secondary locking structure according to claim 1, wherein the first clamping groove (201) includes:

Sliding grooves (203) which are symmetrically arranged on both sides of the connector body (2) and whose height in the vertical direction is not less than the maximum width of the cantilever (101); and

An interference surface (204) provided inside the slide groove (203);

the cantilever (101) is propped against the interference surface (204) to be clamped in the first clamping groove (201).

7. The connector with secondary locking structure according to claim 6, wherein the second clamping groove (202) comprises:

A first sliding surface (205) interposed between the two sliding grooves (203); and

A second sliding surface (206) that is in contact with the first sliding surface (205);

The cantilever (101) is positioned above the first sliding surface (205) when the cantilever is propped against the interference surface (204); when the cantilever (101) slides in the second clamping groove (202), the cantilever is positioned above the first sliding surface (205).

8. The connector with the secondary locking structure according to claim 1, wherein the connector body (2) further comprises a plurality of third clamping grooves (207), the primary locking structure (3) comprises a plurality of clamping parts (301), and the clamping parts (301) are clamped in the third clamping grooves (207).

9. A connector with a secondary locking structure according to claim 3, characterized in that the cantilever arm (101) is integrally formed with the contact surface (109).

10. A connector with a secondary locking arrangement according to claim 3, characterized in that the cantilever arm (101) is detachably connected to the contact surface (109).