CN219811684U

CN219811684U - Built-in terminal positioning structure

Info

Publication number: CN219811684U
Application number: CN202321341916.4U
Authority: CN
Inventors: 王彩俭; 张卫军; 钟宁; 朱建林; 董能发; 吕强
Original assignee: Suzhou Recodeal Interconnect System Co ltd
Current assignee: Suzhou Recodeal Interconnect System Co ltd
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2023-10-10
Anticipated expiration: 2033-05-30

Abstract

The utility model discloses a built-in terminal positioning structure, which comprises: the connector comprises a first component, a second component and a third component, wherein a first inserting cavity for inserting the second component is formed in the first component, a second inserting cavity for inserting the third component is formed in the second component, at least one elastic sheet is arranged at the end part of the second component, a preassembly hole and a locking hole are sequentially formed in the length direction of the elastic sheet, protrusions matched with the preassembly hole or the locking hole are fixedly arranged in the first inserting cavity, a positioning groove is formed in the outer portion of the third component, elastic clamping claws matched with the positioning groove are further arranged in the first inserting cavity, a limiting piece which enables the elastic clamping claws to be stably located in the positioning groove is further arranged on the second component, the connector is different from a conventional product in terminal positioning through TPA, a window is formed in a connector shell, and the built-in terminal positioning structure can ensure that the product is used under the environment with the requirements of window opening limitation and sealing of the shell.

Description

Built-in terminal positioning structure

Technical Field

The utility model relates to the field of communication connectors, in particular to a built-in terminal positioning structure.

Background

The terminal and the plastic shell of the conventional connector are positioned through a primary lock on the shell and fixed with the TPA, because the intervention of the TPA needs to be windowed on the shell, the structure cannot be used in the use environment that the product appearance requirement cannot be windowed, and meanwhile, the terminal fixing mode with the TPA cannot be used in the use condition that the sealing requirement exists.

As disclosed in publication No. CN115693245a, a vehicle-mounted data connector assembly is disclosed, in which an elastic clamping member and a TPA member are combined together for use, when a terminal assembly is assembled, the terminal assembly is positioned by a partially inserted TPA member, and after the assembly is completed, the terminal assembly is fixed together by the elastic clamping member and the fully inserted TPA member; by using the combined structure of the elastic clamping piece and the TPA piece, on one hand, the assembly efficiency and the installation accuracy of the connector are improved, and on the other hand, the connection reliability is greatly improved, so that stable signal transmission is realized. But the above structure has only two states of locking and unlocking.

The above scheme has the following defects: the reliability problem is considered in the design of conventional scene TPA, the spacing fixed design of TPA is difficult, design structure guarantees the reliable connection of mutually supporting of TPA and shell on little space, sealed scene product is bulky, the product of conventional terminal location scheme is whether increase sealed waterproof design on the product module or increase the part on the connector body and all can lead to product own volume grow, be unfavorable for the product to use in little space's place, product itself is higher to the installation space requirement, sealed scene product cost is higher relatively, because newly increased the part, and the part volume is bulky part, the cost of product itself is higher has been caused.

Disclosure of Invention

The utility model mainly aims to provide a built-in terminal positioning structure which can finish the positioning of terminals without increasing the number of parts and the volume of products, is different from the conventional products in that the terminals are positioned by TPA, and the connector shell is also provided with a window, so that the built-in terminal positioning structure can ensure that the products are used in the environment with the limitation of the window opening of the shell and the sealing requirement.

In order to achieve the above object, the present utility model provides a built-in terminal positioning structure.

The built-in terminal positioning structure according to the present utility model includes: the novel elastic clamping device comprises a first component, a second component and a third component, wherein a first inserting cavity for inserting the second component is formed in the first component, a second inserting cavity for inserting the third component is formed in the second component, at least one elastic sheet is arranged at the end part of the second component, a preassembly hole and a locking hole are sequentially formed in the length direction of the elastic sheet, protrusions matched with the preassembly hole or the locking hole are fixedly arranged in the first inserting cavity, a positioning groove is formed in the outer portion of the third component, an elastic clamping jaw matched with the positioning groove is further arranged in the first inserting cavity, and a limiting piece which enables the elastic clamping jaw to be stably located in the positioning groove is further arranged on the second component.

Further improved is that the preassembly hole is provided with a guide inclined plane which is convenient for the protrusion to separate from the preassembly hole when pushing the second component.

Further improved is that a limit groove matched with the limit piece is formed between the outer wall of the elastic claw and the inner wall of the first insertion cavity.

The further improvement is that the limiting pieces are arranged symmetrically, two elastic pieces are arranged at the end part of the second component, the two elastic pieces are arranged symmetrically, and the limiting pieces and the elastic pieces are arranged in a staggered mode.

A further improvement is that the first part is provided with an operating space which facilitates radial deformation of the spring plate by a tool.

In a further development, the positioning groove is an annular groove which is open along the outer circumference of the third component.

Further improved is that an arc chamfer is arranged between the outer circumference of the third component and the positioning groove.

The further improvement is that a driving structure for driving the elastic claw to deform is arranged between the limiting piece and the elastic claw.

The driving structure comprises a first driving inclined plane arranged on the limiting piece and a second driving inclined plane arranged on the elastic claw and matched with the first driving inclined plane.

Compared with the prior art, the built-in terminal positioning structure provided by the utility model has the beneficial effects that: firstly, the reliability of the product can be improved, the built-in interaction can provide more reliable protection for the primary lock, a male-female opposite-plug interlocking structure is not required to be arranged, a windowing design is not required, and the integral strength of the product is improved; secondly, the cost of parts is reduced, and under the condition of sealing, the terminal fixing position does not need to additionally increase a structure or parts to strengthen the sealing performance; in addition, the utilization rate of parts is improved, the protection structure of the primary lock can be disassembled and assembled for multiple times, the protrusion of the traditional TPA is distinguished and fixed, the protrusion features can be worn away after the multiple times of disassembly and assembly, the fixing function is lost, the protection structure is suitable for small-space mechanical connection, the product parts have no special auxiliary features, and the reliable connection of the products is realized in a very small space range.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model, are incorporated in and constitute a part of this specification. The drawings and their description are illustrative of the utility model and are not to be construed as unduly limiting the utility model. In the drawings:

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a cross-sectional view of the present utility model;

FIG. 3 is an exploded view of the present utility model;

FIG. 4 is an exploded view of the present utility model;

fig. 5 is a cross-sectional view A-A of fig. 4.

Wherein: 1. a first component; 2. a second component; 3. a third component; 4. a spring plate; 5. preassembling holes; 6. a locking hole; 7. a protrusion; 8. a limiting piece; 9. a limit groove; 10. an elastic claw; 11. a positioning groove; 12. a first drive ramp; 13. and a second driving inclined plane.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the utility model herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the term "plurality" shall mean two as well as more than two.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

As shown in fig. 1 to 5, the built-in terminal positioning structure includes: the novel elastic clamping device comprises a first component 1, a second component 2 and a third component 3, wherein a first insertion cavity for the second component 2 to be inserted is formed in the first component 1, a second insertion cavity for the third component 3 to be inserted is formed in the second component 2, at least one elastic sheet 4 is arranged at the end part of the second component 2, preassembly holes 5 and locking holes 6 are sequentially formed in the elastic sheet 4 along the length direction of the elastic sheet 4, protrusions 7 matched with the preassembly holes 5 or the locking holes 6 are fixedly arranged in the first insertion cavity, a positioning groove 11 is formed in the outer portion of the third component 3, an elastic clamping jaw 10 matched with the positioning groove 11 is further arranged in the first insertion cavity, and a limiting piece 8 which enables the elastic clamping jaw 10 to be stably located in the positioning groove 11 is further arranged in the second component 2.

In order to facilitate the movement of the second component 2, the protrusion 7 is convenient to enter the locking hole 6 from the preassembly hole 5, and a guiding inclined plane is formed on the preassembly hole 5 to facilitate the protrusion 7 to be separated from the preassembly hole 5 when the second component 2 is pushed.

In order to enable the limiting piece 8 to form stable constraint on the elastic claw 10, a limiting groove 9 matched with the limiting piece 8 is formed between the outer wall of the elastic claw 10 and the inner wall of the first inserting cavity, meanwhile, a driving structure for driving the elastic claw 10 to deform is arranged between the limiting piece 8 and the elastic claw 10, specifically, the driving structure comprises a first driving inclined surface 12 arranged on the limiting piece 8 and a second driving inclined surface 13 arranged on the elastic claw 10 and matched with the first driving inclined surface 12, and therefore the limiting piece 8 is enabled to shrink inwards under the action of the two inclined surfaces in the process of inserting into the limiting groove 9.

Working principle:

the preassembly state is realized: the implementation process is as follows: the product is pushed in from the initial state by the second part 2 from the left end of first part 1 when the assembly position, guarantees in the push-in process that shell fragment 4 of second part 2 is parallel with first insertion cavity in first part 1 each other, continues to advance to the right after penetrating, reaches the pre-installation state when the pre-installation hole 5 of second part 2 blocks protruding 7 of first part 1.

The locking state is realized: after the product is in the preassembly state, the third component 3 needs to be pushed in from the right end of the first component 1, when the third component 3 passes through the elastic claw 10, the elastic claw 10 is stressed to be outwards opened along the radial direction, the third component 3 continuously passes through the second insertion cavity inserted into the second component 2 until the elastic claw 10 enters the positioning groove 11 of the third component 3, at this time, the second component 2 is continuously pushed in from the left end of the first component 1 to the right end, under the action of the guide inclined plane on the preassembly hole 5 in the pushing process, the elastic sheet 4 is deformed, the protrusion 7 on the first component 1 is separated from the preassembly hole 5 on the second component 2, the structural design of the guide inclined plane in the preassembly hole 5 in the second component 2 can ensure that the protrusion 7 on the second component 2 is smoothly pushed in to be conveniently separated from the preassembly hole 5, and then smoothly enter the locking hole 6, and simultaneously, a certain resistance can be ensured, the locking hole 6 of the second component 2 can enter the first component 1 in the right end, the protrusion 7 in the pushing process, the second component 2 is pushed in the second component 2, the guide inclined plane on the preassembly hole 8 on the preassembly hole 5 in the pushing process, the second component 2 enters the positioning groove 11, and simultaneously, the second component 2 is pushed in the second component 2, and finally enters the second component 2 in the axial direction, the second component 2 is pushed in the second insertion groove 2, the second component 2, the second end 3 is pushed in the axial direction, the second component 3 is simultaneously, the second end 3 is pushed and finally, and the end 3 is simultaneously, and the end-side axially and finally, and the end-locked 3 is prevented from entering the second component, and finally, and the second component 3.

The disassembly is realized: when the assembly of the first component 1 and the second component 2 needs to be released after the product is locked, an operation space which is convenient for enabling the elastic sheet 4 to deform radially is formed in the first component 1, the elastic sheet 4 of the second component 2 is pried up from the end position of the elastic sheet 4 by using a tool through the operation space, the elastic sheet 4 of the second component 2 deforms inwards in the radial direction, when the deformation exceeds the bulge 7 of the first component 1, the state of the second component 2 is changed into an unlocking state, leftward thrust is applied to the second component 2 in the prizing process, the second component 2 can be released, the second component 2 is withdrawn from the first insertion cavity of the first component 1, after the second component 2 moves, the limiting piece 8 is separated from the limiting groove 9, the constraint on the elastic claw 10 is released, the third component 3 is pushed at the moment, the third component 3 is separated from the first insertion cavity by using the radial deformation of the elastic claw 10, the unlocking separation of the three components is realized, and the components of the second component 2 and the third component 3 after the withdrawal can not be damaged, the repeated assembly can be continuously used, and the product can be released, as shown in the state of fig. 3-5.

In order to ensure structural stability, in this embodiment, preferably, the limiting members 8 have two, two limiting members 8 are symmetrically disposed, two elastic sheets 4 are disposed at the end of the second component 2, two elastic sheets 4 are symmetrically disposed, and the limiting members 8 and the elastic sheets 4 are staggered.

In this embodiment, the positioning groove 11 is preferably an annular groove formed along the outer circumference of the third member 3.

In order to facilitate the elastic claw 10 to enter or leave the positioning groove 11, avoiding motion interference, an arc chamfer is arranged between the outer circumference of the third part 3 and the positioning groove 11.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A built-in terminal positioning structure, characterized by comprising: the novel elastic clamping device comprises a first component, a second component and a third component, wherein a first inserting cavity for inserting the second component is formed in the first component, a second inserting cavity for inserting the third component is formed in the second component, at least one elastic sheet is arranged at the end part of the second component, a preassembly hole and a locking hole are sequentially formed in the length direction of the elastic sheet, protrusions matched with the preassembly hole or the locking hole are fixedly arranged in the first inserting cavity, a positioning groove is formed in the outer portion of the third component, an elastic clamping jaw matched with the positioning groove is further arranged in the first inserting cavity, and a limiting piece which enables the elastic clamping jaw to be stably located in the positioning groove is further arranged on the second component.

2. The in-built terminal positioning structure according to claim 1, wherein said pre-mounting hole is provided with a guide slope for facilitating the disengagement of said protrusion from said pre-mounting hole when said second member is pushed.

3. The built-in terminal positioning structure according to claim 1, wherein a limit groove matched with the limit piece is formed between the outer wall of the elastic claw and the inner wall of the first insertion cavity.

4. The positioning structure of claim 3, wherein the limiting members are two, the two limiting members are symmetrically arranged, the two spring plates are arranged at the end part of the second component, the two spring plates are symmetrically arranged, and the limiting members and the spring plates are staggered.

5. The in-line terminal positioning structure according to claim 1, wherein said first member has an operating space thereon for facilitating radial deformation of said spring plate by a tool.

6. The in-built terminal positioning structure according to claim 1, wherein the positioning groove is an annular groove opened along an outer circumference of the third member.

7. The built-in terminal positioning structure according to claim 6, wherein an arc chamfer is provided between an outer circumference of the third member and the positioning groove.

8. The built-in terminal positioning structure according to claim 1, wherein a driving structure for driving the elastic claw to deform is provided between the stopper and the elastic claw.

9. The built-in terminal positioning structure according to claim 8, wherein said driving structure comprises a first driving inclined surface provided on said stopper, and a second driving inclined surface provided on said elastic claw and engaged with said first driving inclined surface.