Locking piece installation structure and female end connector

Abstract

The utility model belongs to the technical field of wire harness connectors, and discloses a locking sheet installation structure and a female end connector. The locking piece installation structure comprises a structure body, a fixing buckle set, a limiting protruding block and a resisting head, the structure body is provided with an outer inserting groove used for a terminal to penetrate through, the outer inserting groove is right opposite to an inner inserting groove of a locking piece, the two sides of the structure body are each provided with an external connection buckle, the outer plastic shell is provided with a first clamping groove, and the external connection buckles are used for being connected with the first clamping groove in a clamped mode; the fixing buckle set is arranged on the structure body, a second clamping groove is formed in the locking piece, and the fixing buckle set is used for being connected with the second clamping groove in a clamped mode in the first direction. The resisting head and the limiting protruding block are arranged at the two ends of the structure body correspondingly, and in the second direction, the resisting head and the limiting protruding block are used for abutting against the two ends of the locking piece correspondingly. The female end connector comprises the locking piece installation structure, the locking piece in the outer plastic shell can be well fixed and limited, and assembling of subsequent terminals is greatly facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of wiring harness connector, especially to a locking piece mounting structure and female end connector. BACKGROUND

[0002] Automobile wiring harness is the network main body of automobile circuit, and with the continuous improvement of the electrification and intelligentization of automobile, wiring harness is more and more applied in automobile. When connecting, the wiring harness needs to be inserted in the female end connector, and in order to ensure the stability and reliability of the insertion of the wiring harness terminal and the female end connector, locking piece needs to be set in the female end connector, which is also called terminal position assurance (TPA), and its function is to lock the wiring harness terminal inserted in the female end connector twice, to prevent the wiring harness terminal from loosening or falling off due to vibration during vehicle operation.

[0003] The existing female end connector has no limit in the outer plastic shell when installing the locking piece, and the locking piece is easy to shake when inserting the terminal, which is not conducive to assembling the terminal. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a locking piece mounting structure and female end connector, which can fix the locking piece to facilitate the assembly of the terminal.

[0005] In order to achieve this purpose, the utility model adopts the following technical scheme:

[0006] The locking piece mounting structure comprises:

[0007] The structure body is provided with an outer insertion slot for the terminal to pass through, the outer insertion slot is opposite to the inner insertion slot of the locking piece, and the two sides of the structure body are provided with external buckles, the outer plastic shell is provided with a first clamping groove, and the external buckle is used for clamping with the first clamping groove.

[0008] The fixed buckle group is arranged on the structure body, a second clamping groove is arranged on the locking piece, and the fixed buckle group is used for clamping with the second clamping groove along the first direction.

[0009] The limiting protrusion is arranged on the structure body.

[0010] The resisting head and the limiting protrusion are arranged at the two ends of the structure body respectively, and along the second direction, the resisting head and the limiting protrusion are used for abutting against the two ends of the locking piece respectively.

[0011] As preferably, one of the buckle boss and the clamping claw is arranged on the structure body, and the other of the buckle boss and the clamping claw is arranged on the locking piece, and the clamping claw is clamped on the buckle boss in the first direction.

[0012] As preferably, the locking piece has a plug head protruding in the first direction, the structure body is provided with a receiving groove for accommodating the plug head, the receiving groove extends in the first direction, the buckle boss is arranged on the side wall of the receiving groove, and the clamping claw is arranged on the plug head and clamped on the buckle boss.

[0013] As preferably, the buckle boss and the fixed buckle group are respectively arranged near the two ends of the structure body.

[0014] As preferably, the fixed buckle group comprises a first buckle and a second buckle, the first buckle and the second buckle are respectively connected to the structure body, and the first buckle and the second buckle are respectively clamped on the two opposite sides of the second groove.

[0015] As preferably, the end of the locking piece is provided with a shoulder groove, the shoulder groove has a first groove wall surface and a second groove wall surface which are perpendicular to each other, and the limiting protrusion is clamped in the shoulder groove and abuts against the first groove wall surface and the second groove wall surface respectively.

[0016] As preferably, the shoulder grooves are symmetrically arranged on the locking piece, and the limiting protrusions are symmetrically arranged on the two sides of the structure body, and each limiting protrusion is clamped in the shoulder groove.

[0017] As preferably, the structure body, the external buckle, the fixed buckle group, the limiting protrusion and the resisting head are integrally formed.

[0018] The female connector comprises a locking piece, an external plastic shell and the locking piece mounting structure, the locking piece is fixedly connected to the structure body, and the structure body is fixedly connected to the external plastic shell.

[0019] The utility model discloses beneficial effect lies in:

[0020] The locking piece mounting structure provided by the utility model has the advantages that the locking piece is fixedly connected with the structure main body in the first direction through the clamping of the fixed buckle group and the second clamping groove, and the locking piece is fixedly connected with the outer plastic shell in the second direction through the clamping of the external buckle and the first clamping groove, so that the locking piece is stably arranged in the outer plastic shell, and the subsequent assembly of the terminal is facilitated.

[0021] The female connector provided by the utility model has the advantages that the locking piece is fixedly connected with the structure main body in the first direction through the clamping of the fixed buckle group and the second clamping groove, and the locking piece is fixedly connected with the outer plastic shell in the second direction through the clamping of the external buckle and the first clamping groove, so that the locking piece is stably arranged in the outer plastic shell, and the subsequent assembly of the terminal is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the first perspective structural schematic view of the locking piece and the locking piece mounting structure provided by the utility model specific embodiment.

[0023] Figure 2 It is the second perspective structural schematic view of the locking piece and the locking piece mounting structure provided by the utility model specific embodiment.

[0024] Figure 3 It is the bottom view of the locking piece mounting structure provided by the utility model specific embodiment.

[0025] Figure 4 It is the top view of the locking piece mounting structure provided by the utility model specific embodiment.

[0026] In the drawing:

[0027] 100-locking piece; 110-interpolation slot; 120-second clamping groove; 130-shoulder groove; 140-clamping jaw; 150-insertion head;

[0028] 1-structure main body; 11-outer insertion slot; 12-buckle boss; 13-receiving groove;

[0029] 2-external buckle;

[0030] 3-fixed buckle group; 31-first buckle; 32-second buckle;

[0031] 4-limiting protrusion;

[0032] 5-resisting head. DETAILED DESCRIPTION

[0033] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0034] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0035] In the utility model, unless otherwise explicitly specified and limited, the first feature is "on" or "below" the second feature, which can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0036] In the description of the embodiment, the terms "up", "down", "right", "left" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0037] As Figures 1 to 4The utility model provides a kind of locking piece mounting structure, the locking piece mounting structure includes structure main body 1, fixed buckle group 3, limit lug 4 and resistance head 5, structure main body 1 is set with outer slot 11 for terminal to pass through, outer slot 11 is opposite the inner slot 110 of locking piece 100 setting, the both sides of structure main body 1 are provided with external buckle 2, and first clamping groove is provided on outer plastic shell, and external buckle 2 is used for with first clamping groove clamping;Fixed buckle group 3 is set to structure main body 1, and second clamping groove 120 is set on locking piece 100, and fixed buckle group 3 is used for with second clamping groove 120 along first direction clamping;Resistance head 5 and limit lug 4 are respectively set to the both ends of structure main body 1, along second direction, resistance head 5 and limit lug 4 are used for respectively with the both ends of locking piece 100 abutting.

[0038] Because structure main body 1 is provided with fixed buckle group 3, and fixed buckle group 3 can be clamped in the second clamping groove 120 of locking piece 100 along the first direction, therefore, the clamping of locking piece 100 with second clamping groove 120 through fixed buckle group 3 can realize the fixed connection with structure main body 1 along the first direction;Because the both ends of structure main body 1 are respectively provided with limit lug 4 and resistance head 5, and resistance head 5 and limit lug 4 can respectively abut on the both ends of locking piece 100 along the second direction, therefore, structure main body 1 realizes the limit and fixation of locking piece 100 along the second direction through limit lug 4 and resistance head 5, so that locking piece 100 is fixedly connected with structure main body 1 into an integral whole;Because the both sides of structure main body 1 are provided with external buckle 2, and external buckle 2 can be clamped in the first clamping groove of outer plastic shell, therefore, structure main body 1 is fixedly connected with outer plastic shell through the clamping of external buckle 2 with first clamping groove, and then locking piece 100 is fixedly connected with outer plastic shell, so as to ensure the stability of locking piece 100 in outer plastic shell, facilitate the subsequent assembly of terminal. Specifically, locking piece 100 is vertically stacked and assembled on structure main body 1, the first direction is vertical, the second direction is the length direction of structure main body 1, and the first direction is perpendicular to the second direction;Structure main body 1 is the inner plastic shell commonly used in the art.

[0039] In order to further improve the connection strength and stability of structure main body 1 and locking piece 100, one of buckle boss 12 and claw 140 is provided on structure main body 1, and the other of buckle boss 12 and claw 140 is provided on locking piece 100, and claw 140 can be clamped in buckle boss 12 along the first direction. Specifically, the clamping of buckle boss 12 and claw 140 further strengthens the connection of structure main body 1 and locking piece 100 along the first direction.

[0040] In the embodiment, as Figure 1 , Figure 3 and Figure 4As shown, the locking piece 100 has a plug head 150 protruding in the first direction, and the structure body 1 is provided with a receiving groove 13 for accommodating the plug head 150, the receiving groove 13 extends in the first direction, and the side wall of the receiving groove 13 is provided with a buckle boss 12, and the plug head 150 is provided with a clamping jaw 140, and the clamping jaw 140 is clamped on the buckle boss 12. Specifically, the receiving groove 13 is used to accommodate the plug head 150 of the locking piece 100 protruding in the first direction, so as to realize the smooth cooperation of the structure body 1 and the locking piece 100; the side wall of the receiving groove 13 is provided with a buckle boss 12, and when the locking piece 100 is assembled on the structure body 1 in the first direction, the clamping jaw 140 can be clamped on the buckle boss 12; it can be understood that the opposite two side walls of the receiving groove 13 are provided with the buckle boss 12, and the opposite two sides of the plug head 150 are also provided with the clamping jaw 140, so that the receiving groove 13 is arranged inside the plug head 150 and is clamped from the opposite two sides, thereby ensuring the stability of the connection.

[0041] Specifically, the buckle boss 12 and the fixed buckle group 3 are arranged at positions close to the two ends of the structure body 1 respectively, so as to avoid damage of the locking piece 100 due to stress concentration, and also to ensure the overall reliability of the connection between the locking piece 100 and the structure body 1.

[0042] Further, as shown in Figure 1 and Figure 3 , the fixed buckle group 3 includes a first buckle 31 and a second buckle 32, the first buckle 31 and the second buckle 32 are connected to the structure body 1 respectively, and the first buckle 31 and the second buckle 32 are clamped on the opposite two sides of the second clamping groove 120 respectively. In this embodiment, the first buckle 31 and the second buckle 32 are arranged in opposite directions on the structure body 1, and when the locking piece 100 is assembled on the structure body 1 in the first direction, the first buckle 31 and the second buckle 32 are clamped on the opposite two sides of the second clamping groove 120 respectively, thereby further improving the stability of the connection between the locking piece 100 and the structure body 1.

[0043] In this embodiment, the end of the locking piece 100 is provided with a shoulder groove 130, the shoulder groove 130 has a first groove wall surface and a second groove wall surface perpendicular to each other, and the limiting protrusion 4 is clamped in the shoulder groove 130 and abuts against the first groove wall surface and the second groove wall surface respectively; wherein the first groove wall surface is perpendicular to the length direction of the locking piece 100, and the limiting protrusion 4 is a cuboid column structure and can abut against the first groove wall surface and the second groove wall surface respectively, thereby limiting the locking piece 100 in the second direction.

[0044] In order to improve the limiting effect of the limiting protrusion 4 on the locking piece 100, the shoulder groove 130 is symmetrically arranged on the locking piece 100, and the limiting protrusion 4 is symmetrically arranged on both sides of the structural body 1, and each limiting protrusion 4 is clamped in the shoulder groove 130; specifically, the end of the locking piece 100 is symmetrically provided with two shoulder grooves 130, and correspondingly, the structural body 1 is provided with two limiting protrusions 4, when the locking piece 100 is assembled on the structural body 1, the two limiting protrusions 4 are clamped in the two shoulder grooves 130 respectively, and the locking piece 100 is limited and fixed in the width direction of the locking piece 100.

[0045] Specifically, the structural body 1, the external buckle 2, the fixed buckle group 3, the limiting protrusion 4 and the resisting head 5 are integrally formed, and the structural body 1, the external buckle 2, the fixed buckle group 3, the limiting protrusion 4 and the resisting head 5 are integrally formed by injection molding, which greatly improves the structural strength of the locking piece mounting structure.

[0046] The embodiment also provides a female connector, which comprises the locking piece 100, an external plastic shell and the locking piece mounting structure, the locking piece 100 is fixedly connected to the structural body 1, and the structural body 1 is fixedly connected to the external plastic shell; when the female connector is assembled, first, the locking piece 100 is mounted on the locking piece mounting structure, so that the two are integrally connected, then the assembled structure is mounted into the external plastic shell, and the external plastic shell is connected through the external buckle 2 on the structural body 1, and finally the assembly of the female connector is completed.

[0047] The female connector is simple in structure and convenient to operate, since the locking piece 100 needs to be fixedly connected with the structural body 1 before being mounted into the external plastic shell, and then the structural body 1 is fixedly connected with the external plastic shell, so that the locking piece 100 in the external plastic shell can be well fixed and limited, and subsequent terminal assembly is facilitated.

[0048] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A lock piece mounting structure characterized by comprising: The utility model relates to a terminal structure, including: The structure main part (1) is provided with the outer insertion groove (11) for terminal to pass, the outer insertion groove (11) is opposite to the inner insertion groove (110) of locking sheet (100) arrangement, the both sides of structure main part (1) are provided with external buckle (2), and the first clamping groove is arranged on the outer plastic shell, and the external buckle (2) is used for with first clamping groove clamping, The fixed buckle group (3) is arranged on the structure main part (1), and the second clamping groove (120) is arranged on the locking sheet (100), and the fixed buckle group (3) is used for with second clamping groove (120) along first direction clamping, Limiting protruding block (4), The resisting head (5) and the limiting protruding block (4) are arranged at both ends of the structure main part (1) respectively, and the resisting head (5) and the limiting protruding block (4) are used for abutting against both ends of the locking sheet (100) along the second direction.

2. The lock piece mounting structure according to claim 1, characterized by The structure main part (1) is provided with one of buckle boss (12) and pawl (140), and the other of buckle boss (12) and pawl (140) is arranged on the locking sheet (100), and the pawl (140) can be clamped on the buckle boss (12) along the first direction.

3. The lock piece mounting structure according to claim 2, characterized by The locking sheet (100) has the insertion head (150) along the first direction protruding, the structure main part (1) is provided with the accommodating groove (13) for accommodating the insertion head (150), the accommodating groove (13) extends along the first direction, the side wall of the accommodating groove (13) is provided with the buckle boss (12), and the insertion head (150) is provided with the pawl (140), and the pawl (140) is clamped on the buckle boss (12).

4. The lock piece mounting structure according to claim 3, characterized by The buckle boss (12) and the fixed buckle group (3) are arranged at the positions close to both ends of the structure main part (1) respectively.

5. The lock piece mounting structure according to claim 1, characterized by The fixed buckle group (3) includes first buckle (31) second buckle (32), and the first buckle (31) and the second buckle (32) are connected to the structure main part (1) respectively, and the first buckle (31) and the second buckle (32) are clamped on the opposite sides of the second clamping groove (120) respectively.

6. The lock piece mounting structure according to claim 1, characterized by The end of the locking sheet (100) is provided with the shoulder groove (130), the shoulder groove (130) has the first groove wall surface and the second groove wall surface perpendicular to each other, and the limiting protruding block (4) is clamped in the shoulder groove (130) and abuts against the first groove wall surface and the second groove wall surface respectively.

7. The lock piece mounting structure according to claim 6, characterized by The shoulder groove (130) is symmetrically arranged on the locking sheet (100), and the limiting protruding block (4) is symmetrically arranged on the both sides of the structure main part (1), and each limiting protruding block (4) is clamped in the shoulder groove (130).

8. The lock piece mounting structure according to claim 1, characterized by The structure main part (1), the external buckle (2), the fixed buckle group (3), the limiting protruding block (4) and the resisting head (5) are integrally formed.

9. A female connector characterized by The locking piece (100) is fixedly connected to the structure main body (1), and the structure main body (1) is fixedly connected to the outer plastic shell.

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