Connector easy to assemble

Abstract

The utility model discloses a connector easy to assemble, which comprises a sheath and a terminal assembly installed in the sheath, the terminal assembly comprises a terminal installed in a terminal cavity of the sheath and a cable, one end of the cable is crimped with the terminal, and the other end of the cable extends out of the terminal cavity of the sheath and then is arranged outside the sheath. When the connector is assembled, the flip cover structure is turned over and buckled to the sheath, and the extrusion structure arranged on the inner wall of the flip cover structure extrudes the elastic protruding structures arranged on the terminal lugs to enable the lugs arranged on the two sides of the extending direction of the arc-shaped groove to move oppositely so as to enable the arc-shaped groove to hold a cable tightly. Therefore, the terminal can be crimped without special terminal crimping machine equipment, the operation is simple, the connector is easy to quickly assemble, and the manufacturing cost of the connector can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to an easy-to-assemble connector. Background Art

[0002] Typically, a connector is formed by first crimping the cable to the terminal to form a terminal assembly, and then inserting the terminal assembly into a housing (sheath) to form a complete connector structure. However, the crimping process of the terminal and the cable requires a dedicated terminal crimping machine, and after the terminal crimping is completed, the terminal assembly needs to be assembled into the sheath, which is a relatively cumbersome operation. Utility Model Content

[0003] In view of this, an object of the present invention is to provide an easy-to-assemble connector to solve the technical problems mentioned in the background technology.

[0004] In order to achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: an easy-to-assemble connector, comprising a sheath and a terminal assembly installed in the sheath, the terminal assembly comprising a terminal installed in a terminal cavity of the sheath and a cable with one end crimped to the terminal, the other end of the cable extending from the terminal cavity of the sheath and then arranged outside the sheath, the terminal comprising a conductive portion, a connecting portion and a crimping portion arranged in sequence, the crimping portion having an arc-shaped groove for supporting the cable, and the crimping portion having at least one lug on each side of the arc-shaped groove in the extension direction, the lug being at least partially bent outward to form an elastic protrusion structure;

[0005] The side wall portion of the sheath facing the lug is constructed as a flip-up structure that can be flipped relative to the sheath. The inner wall of the flip-up structure is provided with an extrusion structure that interferes with the elastic protrusion structure when the flip-up structure is flipped and fastened to the sheath. When the flip-up structure is flipped and fastened to the sheath, the extrusion structure squeezes the elastic protrusion structure to move the lugs arranged on both sides of the extension direction of the arc groove toward each other so that the arc groove tightly embraces the cable.

[0006] In some embodiments, the lugs disposed on both sides of the arc-shaped groove extending direction are opposite to each other or staggered.

[0007] In some embodiments, the extrusion structure is two parallel bosses, the extension direction of the boss is consistent with the axial direction of the sheath, and the two bosses are symmetrically distributed on the outside of the lug. When the flip-cover structure is flipped and fastened to the sheath, the side walls of the boss squeeze the elastic protrusion structure to move the lugs arranged on both sides of the extension direction of the arc groove toward each other so that the arc groove hugs the cable.

[0008] In some embodiments, a plane is defined, which is perpendicular to the axial direction of the sheath. The maximum distance between the projections of the elastic protruding structures arranged on both sides of the extending direction of the arc-shaped groove on this plane is greater than the distance between the projections of the two bosses on this plane.

[0009] In some embodiments, the free end of the flip structure has a card slot, and a card table is correspondingly arranged on the side wall of the sheath. When the free end of the flip structure is flipped and buckled to the sheath, it is buckled and connected to the card table arranged on the sheath through the card slot.

[0010] In some embodiments, a baffle is vertically arranged at the free end of the flip structure, and an avoidance hole for the cable to extend out is formed on the baffle.

[0011] In some embodiments, at least one clamping arm is arranged on the conductive part, and a clamping groove matching with the clamping arm is arranged on the inner wall of the terminal cavity. After the terminal assembly is assembled into the interior of the sheath, the clamping arm is clamped into the clamping groove to prevent the terminal assembly from withdrawing from the sheath.

[0012] In some embodiments, a front stop platform for front stop of the terminal assembly is further arranged on the inner wall of the terminal cavity.

[0013] In some embodiments, the connection part between the flip structure and the sheath has a weak part with a thickness smaller than both of them.

[0014] In some embodiments, the conductive part, the connecting part and the crimping part are formed by stamping and rolling a sheet.

[0015] In some embodiments, a plurality of convex thorns protrude from the inner wall of the arc-shaped groove. When the arc-shaped groove is tightened, the convex thorns penetrate into the cable.

[0016] In some embodiments, an extrusion part extends from the top end of the boss towards the direction where the arc-shaped groove is located. When the flip structure is flipped and buckled to the sheath, the extrusion part extrudes the outer peripheral surface of the arc-shaped groove.

[0017] In some embodiments, a stop surface is formed at the connection part between the conductive part and the connecting part, and a baffle protrudes from the end surface on one side of the flip structure facing the terminal assembly. When the flip structure is flipped and buckled to the sheath, the baffle and the stop surface are in stop cooperation to prevent the terminal assembly from withdrawing from the sheath.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows: When assembling the connector of the present utility model, the flip structure is flipped and buckled to the sheath, and the extrusion structure provided on the inner wall of the flip structure makes the lugs arranged on both sides of the extending direction of the arc-shaped groove move towards each other by extruding the elastic protruding structure provided on the terminal lug, so that the arc-shaped groove tightly holds the cable. Thus, the crimping of the terminal can be carried out without a dedicated terminal crimping machine, the operation is simple, the rapid assembly of the connector is easy, and the manufacturing cost of the connector can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings incorporated in and forming a part of this specification illustrate embodiments of the present utility model and, together with the description, are used to explain the principles of the present utility model.

[0020] Figure 1 Structural schematic diagram of the easy-to-assemble connector provided by the present utility model;

[0021] Figure 2 is Figure 1 Exploded schematic diagram of the shown easy-to-assemble connector;

[0022] Figure 3 Schematic diagram of the cooperation between the flip structure and the terminal when the flip structure is not flipped and buckled to the sheath;

[0023] Figure 4 Schematic diagram of the cooperation between the flip structure and the terminal when the flip structure is flipped and buckled to the sheath;

[0024] Figure 5 is Figure 1 Structural schematic diagram of the upper terminal in the shown easy-to-assemble connector;

[0025] Figure 6 is Figure 1 Structural schematic diagram of the assembled easy-to-assemble connector shown;

[0026] Figure 7 is Figure 6 Cross-sectional view;

[0027] Figure 8 Cross-sectional view of the second solution of the present utility model;

[0028] Figure 9 Cross-sectional view of the second solution of the present utility model from another angle.

[0029] The labels in the figures are as follows:

[0030] 10. Sheath; 101. Terminal cavity; 102. Flip structure; 103. Boss; 104. Card slot; 105. Card table; 106. Baffle; 107. Avoidance hole; 108. Clamping groove; 109. Front retaining table; 110. Weak part; 111. Extrusion part; 112. Baffle;

[0031] 20. Terminal; 201. Conductive part; 202. Connection part; 203. Crimping part; 204. Arc-shaped groove; 205. Lug; 206. Elastic protruding structure; 207. Clamping arm; 208. Burr; 209. Stopping surface;

[0032] 30. Cable; 301. Conductor; 302. Insulating layer. Detailed implementation manners

[0033] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements, numerical expressions and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0034] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way limits the present invention or its application or use.

[0035] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and devices should be regarded as part of the specification.

[0036] In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

[0037] Solution 1

[0038] As Figures 1-7 shown, an easy-to-assemble connector includes a sheath 10 and a terminal assembly installed inside the sheath 10. The terminal assembly includes a terminal 20 installed inside a terminal cavity 101 of the sheath 10 and a cable 30 crimped to one end of the terminal 20. The cable 30 includes a conductor 301 and an insulating layer 302 wrapped around the outside of the conductor 301. A front stop 109 for frontally positioning the terminal assembly is provided on the inner wall of the terminal cavity 101. The other end of the cable 30 extends out of the terminal cavity 101 of the sheath 10 and is arranged outside the sheath 10. The terminal 20 includes a conductive part 201, a connection part 202, and a crimping part 203 arranged in sequence. The conductive part 201, the connection part 202, and the crimping part 203 are formed by stamping and rolling a sheet to reduce the manufacturing cost of the terminal 20. At least one clamping arm 207 is provided on the conductive part 201, and a clamping groove 108 matching the clamping arm 207 is provided on the inner wall of the terminal cavity 101. After the terminal assembly is assembled inside the sheath 10, the front stop 109 is used to frontally position the installation position of the terminal assembly. At this time, the clamping arm 207 is clamped into the clamping groove 108 to prevent the terminal assembly from withdrawing from the sheath 10. For details, please refer to Figure 7 ; AsFigure 2 and Figure 5 As shown in Figure 5 , the crimping portion 203 has an arc-shaped groove 204 for carrying the cable 30, and at least one lug 205 is provided on each side of the crimping portion 203 in the extending direction of the arc-shaped groove 204. At least a part of the lug 205 is bent outward to form an elastic protruding structure 206. The lugs 205 provided on both sides of the extending direction of the arc-shaped groove 204 are arranged oppositely or staggeredly. In this embodiment, among the lugs 205 provided on both sides of the extending direction of the arc-shaped groove 204, 2 are provided on one side and 1 is provided on the other side, and the 3 lugs 205 are arranged staggeredly, so that the crimping portion 203 of the terminal 20 has a good holding force on the cable 30; as Figure 1 、 Figure 2 and Figure 6 As shown in Figure 6 , the side wall portion of the sheath 10 facing the lug 205 is constructed as a flip structure 102 that can be flipped relative to the sheath 10. An extrusion structure that interferes with the elastic protruding structure 206 when the flip structure 102 is flipped and buckled to the sheath 10 is provided on the inner wall of the flip structure 102. An extrusion structure further provided by the present utility model is two parallel bosses 103. The extending direction of the bosses 103 is the same as the axial direction of the sheath 10, and the two bosses 103 are symmetrically distributed outside the lug 205. When the flip structure 102 is flipped and buckled to the sheath 10, the side wall of the boss 103 squeezes the elastic protruding structure 206 to make the lugs 205 provided on both sides of the extending direction of the arc-shaped groove 204 move towards each other so that the arc-shaped groove 204 tightly holds the cable 30.

[0039] When assembling the connector of the present utility model: First, the terminal 20 is inserted into the terminal cavity 101 of the sheath 10, and then one end of the cable 30 is stripped to expose the conductor 301 of the cable 30 and inserted into the inside of the crimping portion 203 of the terminal. Finally, the flip structure 102 is flipped and buckled to the sheath 10. The extrusion structure provided on the inner wall of the flip structure 102 squeezes the elastic protruding structure 206 provided on the lug 205 to make the lugs 205 provided on both sides of the extending direction of the arc-shaped groove 204 move towards each other to tightly hold the cable 30, realizing the electrical connection between the conductor 301 of the cable 30 and the terminal 20. Thus, the crimping of the terminal can be carried out without a dedicated terminal crimping machine device, the operation is simple, the rapid assembly of the connector is easy, and the manufacturing cost of the connector can be reduced.

[0040] In an embodiment, as Figure 4As shown in the figure, a plane α is defined. This plane α is perpendicular to the axial direction of the sheath 10. The maximum distance b between the projections of the elastic protruding structures 206 on both sides of the extending direction of the arc-shaped groove 204 on this plane α is greater than the distance c between the projections of the two bosses 103 on this plane α. Thus, it can be ensured that when the flip structure 102 is flipped and buckled to the sheath 10, extrusion can occur between the side wall of the boss 103 and the elastic protruding structure 206. After the extrusion action is completed, the lug 205 is received between the two bosses 103 and is in extrusion contact with the side walls of the two bosses 103. For details, please refer to Figure 5 .

[0041] In one embodiment, as Figure 1 and Figure 6 shown, the free end of the flip structure 102 has a card slot 104, and a card table 105 is correspondingly provided on the side wall of the sheath 10. When the free end of the flip structure 102 is flipped and buckled to the sheath 10, it is snap-connected to the card table 105 provided on the sheath 10 through the card slot 104. Further, a baffle 106 is vertically provided at the free end of the flip structure 102, and an avoidance hole 107 for facilitating the extension of the cable 30 is provided on the baffle 106.

[0042] In one embodiment, as Figure 1 shown, the connection part between the flip structure 102 and the sheath 10 has a weak part 110 with a thickness smaller than both of them. The setting of the weak part 110 facilitates the flipping of the flip structure 102. At the same time, the weak part 110, the flip structure 102, and the sheath 10 are integrally injection-molded, so as to reduce the manufacturing cost of the outer shell composed of the weak part 110, the flip structure 102, and the sheath 10.

[0043] Solution Two

[0044] In order to improve the holding force on the cable 30 and the terminal assembly, the present utility model further proposes Solution Two, which is specifically as follows:

[0045] As Figure 8 shown, an extrusion part 111 is extended and provided at the top end of the boss 103 towards the direction where the arc-shaped groove 204 is located. The extrusion part 111 can be set as a plate-like structure. When the flip structure 102 is flipped and buckled to the sheath 10, the plate-like extrusion part 111 extrudes the outer peripheral surface of the arc-shaped groove 204, so as to have a better holding force on the cable 30. Further, a plurality of convex thorns 208 are convexly provided on the inner wall of the arc-shaped groove 204. When the arc-shaped groove 204 holds the cable 30, the convex thorns 208 penetrate into the cable 30, specifically penetrate into the conductor 301 of the cable 30, which can further improve the holding force of the terminal 20 on the cable 30.

[0046] As Figure 9As shown, a stop surface 209 is formed at the connection between the conductive part 201 and the connection part 202, and a baffle 112 is protrudingly arranged on one end surface of the flip structure 102 facing the terminal assembly. When the flip structure 102 is flipped and buckled to the sheath 10, the baffle 112 and the stop surface 209 are in a blocking fit to prevent the terminal assembly from exiting the sheath 10.

[0047] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and not for limiting the scope of the present invention. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. An easily assembled connector, comprising a sheath and a terminal assembly installed in the sheath. The terminal assembly includes a terminal installed inside a terminal cavity of the sheath and a cable with one end crimped to the terminal. The other end of the cable extends out of the terminal cavity of the sheath and is disposed outside the sheath, characterized in that: The terminal includes a conductive part, a connecting part, and a crimping part arranged in sequence. The crimping part has an arc-shaped groove for carrying a cable, and at least one lug is provided on each side of the arc-shaped groove in the extending direction thereof. At least a part of the lug is bent outward to form an elastic protruding structure; The side wall part of the sheath facing the lug is configured as a flip structure that can be flipped relative to the sheath. An extrusion structure that interferes with the elastic protruding structure is provided on the inner wall of the flip structure. When the flip structure is flipped and buckled to the sheath, the extrusion structure makes the lugs arranged on both sides of the arc-shaped groove move towards each other by extruding the elastic protruding structure so that the arc-shaped groove tightly holds the cable.

2. The easy-to-assemble connector according to claim 1, characterized in that: The lugs arranged on both sides of the arc-shaped groove in the extending direction are arranged opposite to or staggered from each other.

3. The easy-to-assemble connector according to claim 1, characterized in that: The extrusion structure is two parallel bosses. The extending direction of the bosses is consistent with the axial direction of the sheath, and the two bosses are symmetrically distributed outside the lugs. When the flip structure is flipped and buckled to the sheath, the side walls of the bosses make the lugs arranged on both sides of the arc-shaped groove move towards each other by extruding the elastic protruding structure so that the arc-shaped groove tightly holds the cable.

4. The easy - to - assemble connector according to claim 3, characterized in that: Define a plane perpendicular to the axial direction of the sheath. The maximum distance between the projections of the elastic protruding structures arranged on both sides of the arc-shaped groove in the extending direction on this plane is greater than the distance between the projections of the two bosses on this plane.

5. The easy-to-assemble connector according to claim 1, characterized in that: The free end of the flip structure has a card slot, and a clamping platform is correspondingly provided on the side wall of the sheath. When the free end of the flip structure is flipped and buckled to the sheath, it is snap-connected to the clamping platform provided on the sheath through the card slot.

6. The easy-to-assemble connector according to claim 1, characterized in that: A baffle is vertically provided at the free end of the flip structure, and an avoidance hole for the cable to extend out is provided on the baffle.

7. The easy-to-assemble connector according to claim 1, characterized in that: At least one clamping arm is provided on the conductive part, and a clamping groove that cooperates with the clamping arm is provided on the inner wall of the terminal cavity. After the terminal assembly is assembled into the interior of the sheath, the clamping arm is clamped into the clamping groove to prevent the terminal assembly from withdrawing from the sheath.

8. The easy-to-assemble connector according to claim 7, characterized in that: A front stop platform for front-stop positioning of the terminal assembly is further provided on the inner wall of the terminal cavity.

9. The easy - to - assemble connector according to claim 1, wherein: The connection part between the flip structure and the sheath has a weak part with a thickness smaller than that of both.

10. A kind of easily assembled connector according to claim 1, characterized in that: The conductive part, the connecting part, and the crimping part are formed by stamping and rolling a sheet.

11. A kind of easy-to-assemble connector according to claim 1, characterized in that: A plurality of protrusions are convexly provided on the inner wall of the arc-shaped groove. When the arc-shaped groove tightly holds, the protrusions penetrate into the cable.

12. The easy - to - assemble connector according to claim 3, wherein: The top end of the boss extends towards the direction where the arc-shaped groove is located and is provided with an extrusion part. When the flip structure is flipped and buckled to the sheath, the extrusion part extrudes the outer peripheral surface of the arc-shaped groove.

13. The easy-to-assemble connector according to claim 1, characterized in that: A stop surface is formed at the connection between the conductive part and the connecting part. A baffle is convexly provided on the end surface of the flip structure facing the terminal assembly. When the flip structure is flipped and buckled to the sheath, the baffle is in stop cooperation with the stop surface to prevent the terminal assembly from withdrawing from the sheath.

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