CN220138766U - Connector assembly with secondary locking structure - Google Patents
Connector assembly with secondary locking structure Download PDFInfo
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- CN220138766U CN220138766U CN202321574098.2U CN202321574098U CN220138766U CN 220138766 U CN220138766 U CN 220138766U CN 202321574098 U CN202321574098 U CN 202321574098U CN 220138766 U CN220138766 U CN 220138766U
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- assembly
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- secondary lock
- terminal assembly
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- 238000003780 insertion Methods 0.000 claims description 17
- 230000037431 insertion Effects 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 17
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 7
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Abstract
The utility model discloses a connector component with a secondary locking structure, wherein the connector component respectively positions the preassembly position and the locking position of the secondary locking component through a tongue piece which is arranged on the end face of a sheath accommodating cavity and extends outwards along the direction perpendicular to the loading direction of a terminal component and a clamping piece which is formed by extending on the side face of the sheath corresponding to the locking part.
Description
Technical Field
The present disclosure relates to connectors, and particularly to a connector assembly with a secondary locking structure.
Background
Many electronic devices are electrically connected through the mutual insertion of the rubber shell with the conductive contact assembly and the devices, so as to achieve the functions of power on or signal transmission. With the miniaturization of electronic devices, the connector products are also required to be smaller in size to save the assembly space. However, the undersize causes defects in terms of structure, such as insufficient stability of connection, difficult assembly, unstable fixation of the conductive terminals, and the like, so that the problems of easy shaking of products, easy deformation and loosening of terminals during assembly can be caused after use, and therefore, a connector assembly with a secondary locking structure (TPA) is generated, however, the secondary locking structure (TPA) of the terminals in the conventional automobile connector is generally arranged at the middle position of the terminals, and further, the TPA is required to be put aside at the middle position of the connector sheath, which results in complex sheath structure and low stability, and damage to the sheath is easy to cause during installation, especially during disassembly.
Disclosure of Invention
The present utility model provides a connector assembly with a secondary locking structure to solve the technical problems mentioned in the background art.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a connector assembly having a secondary locking structure, comprising: at least one terminal assembly, the side surface of which is provided with a clamping groove; the sheath is internally provided with at least one accommodating cavity for accommodating the terminal assembly, and at least one sheath cantilever clamped with the clamping groove is formed on the inner wall of the accommodating cavity in an extending manner along the direction of loading the terminal assembly into the sheath; the end face of the accommodating cavity is provided with a tongue piece protruding outwards along the direction perpendicular to the loading direction of the terminal assembly, and a preassembly part is arranged on the side face of the tongue piece, which is away from the terminal assembly; the secondary lock assembly is provided with a guide groove matched with the arrangement direction of the tongue piece, and a preassembly groove matched with the preassembly part after the tongue piece enters the guide groove; the secondary lock assembly is provided with a locking part on at least one side face in the insertion direction of the secondary lock assembly, a clamping piece is formed by extending the side face, corresponding to the locking part, of the sheath, a locking groove matched with the locking part in a clamping mode is formed in the clamping piece, and when the locking part is clamped with the locking groove, the side face, facing the terminal assembly, of the secondary lock assembly interferes with a path of the terminal assembly, which exits from the sheath, so that the terminal assembly is prevented from being separated from the accommodating cavity.
In a preferred embodiment, the secondary lock assembly is provided with an arc-shaped groove on a top surface of the insertion direction thereof in a direction perpendicular to the terminal assembly loading direction, the arc-shaped groove being configured to expose a rear end of a part of the terminal assembly.
In a preferred embodiment, two clamping pieces are arranged, and the two clamping pieces are symmetrically arranged at two sides of the insertion direction of the secondary lock assembly.
In a preferred embodiment, when the pre-installation groove is clamped with the pre-installation part, a preset distance is reserved between the locking part and the locking groove, and when the locking part is clamped with the locking groove, the pre-installation part moves to the other side of the pre-installation groove.
In a preferred embodiment, the end face of the accommodating cavity is provided with an extension plate extending along the reverse direction of the loading direction of the terminal assembly, and the side face of the secondary lock assembly facing the terminal assembly is provided with a avoiding groove which is communicated with the guide groove and used for the extension plate to extend in.
In a preferred embodiment, the secondary lock assembly is provided with at least one auxiliary groove penetrating on a side facing away from the terminal assembly, the auxiliary groove being located on one side of the pre-installed groove and aligned with the pre-installed groove in the direction in which the pre-installed groove is provided.
In a preferred embodiment, the projection of the relief groove on the side of the secondary lock assembly provided with the pre-installed groove is arranged non-coincident with the auxiliary groove.
In a preferred embodiment, two auxiliary grooves are arranged, and the two auxiliary grooves are symmetrically distributed on two sides of the preassembly groove.
In a preferred embodiment, the tongue piece is provided with at least one positioning protrusion at one end matched with the secondary lock assembly, a positioning groove matched with the positioning protrusion is arranged in the secondary lock assembly, and when the locking part is clamped with the locking groove, the positioning protrusion is embedded in the positioning groove.
In a preferred embodiment, the side of the secondary lock assembly facing the terminal assembly is provided with a limiting block in a protruding mode, the sheath is provided with a limiting groove matched with the limiting block, and when the locking part is clamped with the locking groove, the limiting block is embedded in the limiting groove.
Compared with the prior art, the utility model has the beneficial effects that: according to the connector assembly, the preassembly position and the locking position of the secondary lock assembly are respectively positioned through the tongue piece which is arranged on the end face of the sheath accommodating cavity and protrudes outwards along the direction perpendicular to the loading direction of the terminal assembly and the clamping piece which is formed by extending the side face of the sheath corresponding to the locking part, and as the secondary lock assembly is arranged at the rear end of the sheath along the loading direction of the terminal assembly, compared with the conventional automobile connector, the secondary locking structure of the terminal is generally arranged at the middle position of the terminal, and the secondary lock assembly does not need to be arranged at the middle position of the sheath, so that the sheath and the secondary lock assembly have the advantages of simple structure, convenience in installation and the like, can be repeatedly disassembled, and can obviously improve the locking reliability of the terminal assembly in the connector.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.
FIG. 1 is an exploded view of a connector assembly with a secondary locking structure according to the present utility model;
FIG. 2 is a schematic view of a secondary lock assembly of the connector assembly of FIG. 1;
FIG. 3 is a right side view of the connector assembly of FIG. 1 assembled;
FIG. 4 is a cross-sectional view of the connector assembly with the secondary lock assembly in a pre-load position;
FIG. 5 is a cross-sectional view of the connector assembly with the secondary lock assembly in the locked position;
fig. 6 is a bottom view of the connector assembly of fig. 1 after assembly;
fig. 7 is a cross-sectional view taken along A-A of fig. 6.
The figures are marked as follows:
10. a sheath; 101. a receiving chamber; 102. a sheath cantilever; 103. a tongue piece; 104. a preassembling part; 105. a clamping piece; 106. a locking groove; 107. an extension plate; 108. positioning the bulge; 109. a limit groove; 110. an end face of the accommodating cavity;
20. a secondary lock assembly; 201. a guide groove; 202. preassembling a groove; 203. a locking part; 204. an avoidance groove; 205. an auxiliary groove; 206. a positioning groove; 207. a limiting block; 208. an arc-shaped groove.
30. A terminal assembly; 301. and a clamping groove.
Detailed Description
Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
1-5, a connector assembly with a secondary locking structure comprises at least one terminal assembly 30, a sheath 10 and a secondary locking assembly 20, wherein at least one accommodating cavity 101 for accommodating the terminal assembly 30 is formed in the sheath 10, at least one sheath cantilever 102 for locking the terminal assembly 30 once is formed on the inner wall of the accommodating cavity 101 along the direction of loading the terminal assembly 30 into the sheath 10, the middle part of the terminal assembly 30 is recessed inwards to form a clamping groove 301 for clamping the sheath cantilever 102, and the sheath cantilever 102 is firstly extruded and deformed by the head part of the terminal assembly 30, namely an interaction part for electrically connecting with an opposite connector, and then the head part of the terminal assembly 30 is reset and clamped into a clamping groove 301 after passing through, so that the terminal assembly 30 is locked once.
As shown in fig. 1 and 2, the end face 110 of the receiving chamber is provided with a tongue piece 103 protruding outward in a direction perpendicular to the direction in which the terminal assembly 30 is mounted, and a preassembly part 104 is provided on a side of the tongue piece 103 facing away from the terminal assembly 30; the secondary lock assembly 20 is provided with a guide groove 201 matched with the arrangement direction of the tongue piece 103, and is provided with a preassembly groove 202 matched with the preassembly part 104 after the tongue piece 103 enters the guide groove 201, and the preassembly groove 202 and the preassembly part 104 are matched with each other to realize the positioning of the preassembly position of the secondary lock assembly 20 in the process of inserting the secondary lock assembly 20 into the sheath 10, as shown in fig. 4; the secondary lock assembly 20 is provided with a locking part 203 on at least one side surface in the insertion direction, a clamping piece 105 is formed on the side surface of the sheath 10 corresponding to the locking part 203 in an extending way, a locking groove 106 matched with the locking part 203 in a clamping way is formed on the clamping piece 105, when the locking part 203 is clamped with the locking groove 106, the side surface of the secondary lock assembly 20 facing the terminal assembly 30 interferes with a path of the terminal assembly 30 backing out of the sheath 10 to prevent the terminal assembly 30 from being detached from the accommodating cavity 101, and particularly referring to fig. 5, the minimum linear distance between the two is a, and a is between 0.2mm and 0.5mm, so that when the terminal assembly 30 is pulled backwards by an external force, the side surface of the secondary lock assembly 20 facing the terminal assembly 30 can be abutted to the terminal assembly 30 to prevent the secondary lock assembly 20 from further moving along the axial direction, on the one hand, the arrangement of the distance a is in order to facilitate the smooth insertion of the secondary lock assembly 20 into the sheath 10, and the friction force between the two is reduced, and on the other hand, the reason that the tolerance between the terminal assembly 30 and the secondary lock assembly 20 cannot be assembled is prevented due to the fact that the tolerance between the two assemblies are convenient to be assembled is considered.
Further, the secondary lock assembly 20 is provided with an arc-shaped groove 208 on the top surface of the insertion direction thereof in a direction perpendicular to the direction in which the terminal assembly 30 is mounted, and the arc-shaped groove 208 is configured to expose a rear end of a portion of the terminal assembly 30, thereby ensuring that the terminal assembly 30 can be smoothly penetrated out of the arc-shaped groove 208 of the secondary lock assembly 20 after being wired, and preventing interference therebetween.
The connector assembly of the utility model respectively locates the preassembly position and the locking position of the secondary lock assembly 20 through the tongue piece 103 arranged on the end face 110 of the sheath accommodating cavity along the direction perpendicular to the loading direction of the terminal assembly 30 and the clamping piece 105 formed by extending on the side face of the sheath 10 corresponding to the locking part 203, and because the secondary lock assembly 20 is arranged on the rear end of the sheath 10 along the loading direction of the terminal assembly 30, compared with the conventional automobile connector, the secondary locking structure (TPA) of the terminal is generally arranged at the middle position of the terminal, the yielding of the secondary lock assembly is not required at the middle position of the sheath, therefore, the sheath 10 and the secondary lock assembly 20 of the utility model have the advantages of simple structure, convenient installation, good feedback and the like, can be repeatedly disassembled, and can remarkably improve the locking reliability of the terminal assembly in the connector.
In addition, when the conventional design is used for distinguishing the preassembly position and the locking position of the secondary lock assembly 20, a plurality of buckles are arranged in the same direction and share the same cantilever structure, and when the conventional design is installed, the condition that the secondary lock assembly 20 (the second buckle) directly slides to the second installation position, namely the locking position, may occur because the cantilever structure is jacked up by the first buckle; the positioning surfaces of the preassembly position and the locking position are distributed on different planes of the secondary lock assembly 20, so that when the secondary lock assembly 20 is inserted, the preassembly part 104 and the preassembly groove 202 and the locking part 203 and the locking groove 106 are mutually independent and respectively act, and therefore, the preassembly position and the locking position are well fed back for installation, and the assembly is convenient.
In an embodiment, as shown in fig. 1, in order to ensure the stability of the process of inserting the secondary lock assembly 20 into the sheath 10, two clamping pieces 105 are provided, and the two clamping pieces 105 are symmetrically arranged at two sides of the insertion direction of the secondary lock assembly 20, in the process of inserting the secondary lock assembly 20 into the sheath 10, the two clamping pieces 105 are clamped at two sides of the secondary lock assembly 20, and play a role of assisting the secondary lock assembly 20 to be inserted into the sheath 10 together with the guide groove 201, so that the secondary lock assembly 20 is prevented from relatively shaking in the process of being inserted, and the smooth insertion is affected.
Further, the direction of the preassembly groove 202 is consistent with the direction of the guide groove 201, and the preassembly part 104 can move reversely in the preassembly groove 202 along with the insertion of the secondary lock assembly 20, when the preassembly groove 202 is clamped with the preassembly part 104, a preset distance is reserved between the locking part 203 and the locking groove 106, and in the process of inserting the secondary lock assembly 20 into the sheath 10, the direction of inserting the secondary lock assembly 20 is opposite to the moving direction of the preassembly part 104 in the preassembly groove 202, so that when the locking part 203 is clamped with the locking groove 106, the preassembly part 104 moves to the other side of the preassembly groove 202, the preassembly groove 202 also serves the purpose of assisting the secondary lock assembly 20 to be inserted into the sheath 10, and the stability of the process of inserting the secondary lock assembly 20 into the sheath 10 can be further improved.
In an embodiment, as shown in fig. 1, an extension plate 107 is disposed on the end surface 110 of the accommodating cavity along the direction opposite to the loading direction of the terminal assembly 30, a relief groove 109 connected with the guide groove 201 and used for extending the extension plate 107 is disposed on the side surface of the secondary lock assembly 20 facing the terminal assembly 30 in a penetrating manner, the arrangement of the extension plate 107 and the relief groove 109 serves to guide the tongue piece 103 into the guide groove 201 on one hand, and on the other hand, the purpose of adjusting the position of the tongue piece 103 can be achieved by designing and adjusting the size of the extension plate 107, so that interference between the secondary lock assembly 20 and the sheath 10 is prevented during the insertion process and after the insertion is completed.
As shown in fig. 1 and 2, the secondary lock assembly 20 is provided with at least one auxiliary groove 205 penetrating on a side away from the terminal assembly 30, the auxiliary groove 205 being located at one side of the pre-installation groove 202 and being aligned with the arrangement direction of the pre-installation groove 202. In this embodiment, two auxiliary grooves 205 are further provided, and the two auxiliary grooves 205 are symmetrically distributed on two sides of the preassembly groove 202, and the inner sides of the two auxiliary grooves 205 form a spring-plate-shaped structure provided with the preassembly groove 202, and the spring-plate-shaped structure can be smoothly jacked up when being extruded by the preassembly part 104, so as to realize smooth clamping connection between the preassembly groove 202 and the preassembly part 104.
Further, in order to avoid that the extension plate 107 enters the auxiliary groove 205 by mistake during the insertion of the secondary lock assembly 20, the projection of the avoiding groove 204 on the side surface of the secondary lock assembly 20 provided with the preassembly groove 202 is not overlapped with the auxiliary groove 205, and the extension plate 107 can only enter the avoiding groove 109 but not enter the auxiliary groove 205 during the insertion of the secondary lock assembly 20, so as to prevent the damage to the sheath 10 and the secondary lock assembly 20 caused by misplug.
In an embodiment, as shown in fig. 1, 6 and 7, at least one positioning protrusion 108 is provided at one end of the tongue piece 103 matched with the secondary lock assembly 20, a positioning groove 206 matched with the positioning protrusion 108 is provided in the secondary lock assembly 20, and when the secondary lock assembly 20 is in a locking position, the positioning protrusion 108 is just embedded in the positioning groove 206, so that accurate positioning of the installation position of the tongue piece 103 is realized, and the condition that the installation is not in place between the secondary lock assembly 20 and the tongue piece 103 is prevented.
In an embodiment, as shown in fig. 6, a limiting block 207 is protruding on a side surface of the secondary lock assembly 20 facing the terminal assembly 30, a limiting groove 109 matched with the limiting block 207 is provided on the sheath 10, and the limiting block 207 is embedded in the limiting groove 109 when the secondary lock assembly 20 is in a locking position.
While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.
Claims (10)
1. A connector assembly having a secondary locking structure, comprising:
at least one terminal assembly, the side surface of which is provided with a clamping groove;
the sheath is internally provided with at least one accommodating cavity for accommodating the terminal assembly, and at least one sheath cantilever clamped with the clamping groove is formed on the inner wall of the accommodating cavity in an extending manner along the direction of loading the terminal assembly into the sheath; the end face of the accommodating cavity is provided with a tongue piece protruding outwards along the direction perpendicular to the loading direction of the terminal assembly, and a preassembly part is arranged on the side face of the tongue piece, which is away from the terminal assembly;
the secondary lock assembly is provided with a guide groove matched with the arrangement direction of the tongue piece, and a preassembly groove matched with the preassembly part after the tongue piece enters the guide groove; the secondary lock assembly is provided with a locking part on at least one side face in the insertion direction of the secondary lock assembly, a clamping piece is formed by extending the side face, corresponding to the locking part, of the sheath, a locking groove matched with the locking part in a clamping mode is formed in the clamping piece, and when the locking part is clamped with the locking groove, the side face, facing the terminal assembly, of the secondary lock assembly interferes with a path of the terminal assembly, which exits from the sheath, so that the terminal assembly is prevented from being separated from the accommodating cavity.
2. A connector assembly having a secondary locking structure as defined in claim 1, wherein: the secondary lock assembly is provided with an arc-shaped groove on a top surface of an insertion direction thereof in a direction perpendicular to a direction in which the terminal assembly is fitted, the arc-shaped groove being configured to expose a rear end of a part of the terminal assembly.
3. A connector assembly having a secondary locking structure as defined in claim 1, wherein: the two clamping pieces are symmetrically arranged on two sides of the insertion direction of the secondary lock assembly.
4. A connector assembly having a secondary locking structure as defined in claim 1, wherein: when the pre-installation groove is clamped with the pre-installation part, a preset distance is reserved between the locking part and the locking groove, and when the locking part is clamped with the locking groove, the pre-installation part moves to the other side of the pre-installation groove.
5. A connector assembly having a secondary locking structure as defined in claim 1, wherein: the terminal assembly is characterized in that an extension plate is arranged on the end face of the accommodating cavity in a reverse extension mode along the loading direction of the terminal assembly, and an avoidance groove which is communicated with the guide groove and used for the extension plate to extend in is formed in the side face of the secondary lock assembly, which faces the terminal assembly in a penetrating mode.
6. A connector assembly having a secondary locking structure according to claim 5, wherein: the secondary lock assembly is provided with at least one auxiliary groove in a penetrating mode on the side face away from the terminal assembly, and the auxiliary groove is located on one side of the preassembly groove and is consistent with the arrangement direction of the preassembly groove.
7. A connector assembly having a secondary locking structure as defined in claim 6, wherein: the projection of the avoidance groove on the side surface of the secondary lock assembly, which is provided with the preassembly groove, is not overlapped with the auxiliary groove.
8. A connector assembly having a secondary locking structure as defined in claim 6, wherein: the auxiliary grooves are formed in two sides of the preassembling groove, and the two auxiliary grooves are symmetrically distributed on two sides of the preassembling groove.
9. A connector assembly having a secondary locking structure as defined in claim 1, wherein: the tongue piece is provided with at least one location arch in the one end with secondary lock subassembly matched with, be provided with in the secondary lock subassembly with location protruding matched with constant head tank, when locking portion and locking groove joint, the location protruding inlay is established in the constant head tank.
10. A connector assembly having a secondary locking structure as defined in claim 1, wherein: the secondary lock assembly is provided with a limiting block in a protruding mode on the side face, facing the terminal assembly, of the secondary lock assembly, the sheath is provided with a limiting groove matched with the limiting block, and when the locking portion is clamped with the locking groove, the limiting block is embedded in the limiting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321574098.2U CN220138766U (en) | 2023-06-20 | 2023-06-20 | Connector assembly with secondary locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321574098.2U CN220138766U (en) | 2023-06-20 | 2023-06-20 | Connector assembly with secondary locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220138766U true CN220138766U (en) | 2023-12-05 |
Family
ID=88950631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321574098.2U Active CN220138766U (en) | 2023-06-20 | 2023-06-20 | Connector assembly with secondary locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220138766U (en) |
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2023
- 2023-06-20 CN CN202321574098.2U patent/CN220138766U/en active Active
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