CN215377761U - Integrated terminal and electric connector comprising same - Google Patents

Abstract

The utility model relates to an integrated terminal which is formed by punching and bending a sheet metal. The integral type terminal comprises line ball section and conductive core cartridge section of connecting in proper order. And simultaneously forming a first locking notch and a second locking notch on the conductive core insertion section. The first locking notch is formed by directly blanking the side wall of the conductive core inserting section. The second locking notch is located right behind the first locking notch, is formed by punching the side wall of the conductive core inserting section and penetrates through the second locking notch along the width direction of the conductive core inserting section. Therefore, on one hand, the manufacturing difficulty of the integrated terminal is reduced to a certain extent, and the integrated terminal has good structural stability after being stressed, so that the stability of the integrated terminal in the insertion and assembly of the insulating plastic body is ensured; on the other hand, the limitation on the material of the integrated terminal is relaxed. In addition, the utility model also relates to an electric connector.

Description

Integrated terminal and electric connector comprising same

Technical Field

The utility model relates to the technical field of electric connector manufacturing, in particular to an integrated terminal and an electric connector comprising the same.

Background

The electric connector is widely applied to the fields of automobiles, communication and various industries. The electric connector is an important functional element for completing switching and signal transmission, and ensures that the phenomena of distortion and energy loss do not occur in the transmission process of signals as much as possible.

In the in-service use process of electric connector, the cable can receive the effect of outside pulling power inevitably to very easily lead to the terminal to take place not hard up phenomenon in the slot, and then influence signal transmission's stability, reliability, its is directly deviate from in by the slot when serious, and then lead to the interrupt of signal transmission process. In view of this, chinese utility model patent CN212626204U discloses an electrical connector with a secondary terminal locking structure, which includes an insulating plastic body and a terminal. A series of slots for terminals to be inserted are arranged in the insulating plastic body. The terminal is provided with a locking spring sheet and a locking groove. The locking elastic sheet is formed by punching the side wall of the terminal and bending outwards. The locking groove is formed in the terminal and penetrates through the terminal in the width direction. The insulating plastic body comprises a plastic main body and a turnover buckle body. The turnover buckle body is connected to the plastic main body and can freely turn over relative to the plastic main body. The turnover buckle body is formed by connecting a horizontal arm, a vertical arm and a hook arm in sequence. An avoiding gap used for simultaneously placing the vertical arm and the hook arm is extended downwards from the plastic main body. And a clamping convex part matched with the hook hanging arm extends from the inner side wall of the avoiding notch. Just corresponding to the actual inserting position of the locking elastic sheet, a limiting groove extends outwards from the side wall of the slot. However, the molding process of the terminal is complicated and the manufacturing cost is high, especially the molding process of the locking spring. In addition, according to the customer quality inspection standard, since the locking spring needs to perform the deflection motion frequently, that is, the locking spring is required to have higher sensitivity of performing the motion and stability of the state after locking, and also has a higher fatigue life, and can bear multiple plugging and unplugging operations of the terminal, in view of this, that is, the terminal has a more severe requirement on material selection, and further causes an increase in manufacturing cost. Thus, a skilled person is urgently needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Therefore, in view of the above-mentioned problems and drawbacks, the present invention provides a terminal with a terminal body that is capable of being integrated with a terminal body, and a method for manufacturing the terminal body.

In order to solve the above technical problems, the present invention relates to an integrated terminal which is formed by punching and bending a sheet metal. The integral type terminal comprises line ball section and conductive core cartridge section of connecting in proper order. And simultaneously forming a first locking notch and a second locking notch on the conductive core insertion section. The first locking notch is formed by directly blanking the side wall of the conductive core inserting section. The second locking notch is located right behind the first locking notch, is formed by punching the side wall of the conductive core inserting section and penetrates through the second locking notch along the width direction of the conductive core inserting section.

As a further improvement of the technical scheme of the utility model, the cross section of the conductive core insertion section is in a shape similar to a Chinese character hui, and the conductive core insertion section is formed by sequentially bending and connecting a first folding wall, a second folding wall, a third folding wall, a fourth folding wall, a fifth folding wall, a sixth folding wall, a seventh folding wall and an eighth folding wall by 90 degrees along the anticlockwise direction. When the integrated terminal is inserted and assembled relative to the insulating plastic body, the eighth turnover wall can vertically abut against the third turnover wall, and the first turnover wall can abut against the fifth turnover wall. The first locking notch is formed on the seventh folded wall, and the second locking notch is formed on the third folded wall.

As a further improvement of the technical scheme of the utility model, the first folding wall and the second folding wall are bent for the second time to respectively form a first elastic top contact arm and a second elastic top contact arm. And blanking and profiling the third turnover wall and the fourth turnover wall to respectively form a third elastic top contact arm and a fourth elastic top contact arm.

As a further improvement of the technical scheme of the utility model, a first concave top contact area, a second concave top contact area, a third concave top contact area and a fourth concave top contact area are respectively formed on the first elastic top contact arm, the second elastic top contact arm, the third elastic top contact arm and the fourth elastic top contact arm in a pressing mode.

As a further improvement of the technical scheme of the utility model, a connecting transition wall extends from the first turnover wall to the second turnover wall.

As a further improvement of the technical scheme of the utility model, the fourth turnover wall is also provided with a first cutting groove and a second cutting groove. The first cutting groove penetrates through the fourth folding wall, the third folding wall and the second folding wall at the same time. The second fracture groove is arranged right in front of the first fracture groove and extends to the front end face of the second turnover wall through the third turnover wall.

Through adopting above-mentioned technical scheme to set up, the following several beneficial effects in the aspect of have at least been obtained:

1) either the first locking notch or the second locking notch can be formed in a blanking mode, so that the manufacturing difficulty of the integrated terminal is reduced to a certain extent, the manufacturing implementation is facilitated, and the manufacturing cost is reduced;

2) in practical application, the integral terminal has good structural stability after being stressed, and is beneficial to ensuring that the integral terminal is effectively and reliably locked after being inserted and matched relative to the insulating plastic body;

3) the requirement on the manufacturing material of the integrated terminal is reduced, so that the manufacturing cost is effectively reduced.

In addition, the utility model also discloses an electric connector which comprises an insulating plastic body, an integrated terminal and a cable. The cable is inserted and assembled in the integrated terminal and is compressed by the line pressing section. The insulating plastic body comprises a plastic main body and a turnover buckle body. Along its width direction, set up a series of slots in the plastic main part to be used for inserting and joining in marriage integral type terminal. The turnover buckle body is formed on the plastic main body and can be freely turned over relative to the plastic main body so as to lock the axial displacement of the second locking notch. An elastic limiting arm is formed on the inner side wall of the slot. An inward extending locking block matched with the shape and the position of the first locking notch is formed on the elastic limiting arm so as to realize the locking of the axial displacement of the first locking notch.

Compared with the electric connector with the traditional design structure, in the technical scheme disclosed by the utility model, the double-locking structure is adopted to limit the axial displacement of the integrated terminal, namely the fixed connection with the insulating plastic body is realized by means of the first locking notch and the second locking notch respectively, so that the terminal is effectively prevented from falling out of the slot, the reliability of connection between the terminal and the slot is ensured, the reliability and stability of signal transmission are further ensured, and the electric connector is ensured to be always kept in a normal working state.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a perspective view of an electrical connector according to the present invention.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a sectional view a-a of fig. 2.

Fig. 4 is a schematic perspective view of an insulating plastic body in the electrical connector of the present invention.

Fig. 5 is a front view of fig. 4.

Fig. 6 is a sectional view B-B of fig. 5.

Fig. 7 is a perspective view of an integrated terminal of the electrical connector of the present invention.

Fig. 8 is a side view of fig. 7.

Fig. 9 is a cross-sectional view C-C of fig. 8.

Fig. 10 is a front view of fig. 7.

Fig. 11 is a perspective view of another perspective view of the one-piece terminal of the electrical connector of the present invention.

1-insulating plastic body; 11-a plastic body; 111-slot; 1111-elastic limit arm; 11111-Inboard locking block; 12-turning over the fastener; 2-an integral terminal; 21-pressing the wire section; 22-conductive core insertion section; 221-a first turnover wall; 2211-a first resilient roof contact arm; 22111-first concave top contact field; 2212-connecting transition walls; 222-a second turnover wall; 2221-a second resilient roof-contacting arm; 22211 — second concave top contact field; 223-a third folded wall; 2231-a second locking notch; 2232-a third resilient top-contacting arm; 22321-a third concave top contact region; 224-a fourth turnover wall; 2241-a fourth elastic top contact arm; 22411-fourth concave top contact region; 2242-a first cleavage groove; 2243-a second cleavage groove; 225-fifth everted wall; 226-a sixth everting wall; 227-a seventh turnover wall; 2271 — a first locking notch; 228-an eighth turnover wall; 3-a cable.

Detailed Description

In the description of the present invention, it is to be understood that the terms "front", "rear", "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Referring to the following embodiments, the contents of the present invention will be further described in detail, and fig. 1 shows a perspective view of an electrical connector according to the present invention, which mainly includes an insulating plastic body 1, an integrated terminal 2, and a cable 3. The integral terminals 2 are provided in a plurality, and are arranged and inserted in the insulating plastic body 1 in sequence. And the cable 3 is inserted into the integrated terminal 2 and is compressed to realize the function of signal transmission.

Fig. 7 is a perspective view showing one view of the integrated terminal of the electrical connector according to the present invention, which is formed by punching and bending a sheet of metal. The integral type terminal 2 is formed by connecting a wire pressing section 21 and a conductive core insertion section 22 in sequence along the rear-to-front direction. As shown in fig. 8 and 9, the cross section of the conductive core inserting section 22 is shaped like a Chinese character hui, and is formed by sequentially bending and connecting a first folding wall 221, a second folding wall 222, a third folding wall 223, a fourth folding wall 224, a fifth folding wall 225, a sixth folding wall 226, a seventh folding wall 227 and an eighth folding wall 228 by 90 degrees along the counterclockwise direction.

In addition, in order to improve the insertion stability of the integrated terminal 2 and avoid the occurrence of the separation phenomenon from the insulating plastic body 1 due to the external force, the seventh folded wall 227 is punched and formed with a first locking notch 2271. A second locking notch 2231 is punched and formed in the third folded wall 223, and penetrates along the width direction of the core insertion segment 22. As shown in fig. 4, 5 and 6, the insulating plastic body 1 is mainly composed of a plastic body 11 and a flip fastener 12. Along its width direction, a series of slots 111 are formed in the plastic body 11 for inserting the integrated terminals 2. The flip-fastener 12 is directly formed on the plastic body 11 and can be flipped freely relative to the plastic body 11 to lock the axial displacement of the second locking notch 2231. An elastic limiting arm 1111 is formed on the inner side wall of the slot 111. An inward extending locking block 11111 is formed on the elastic limiting arm 1111 and is matched with the first locking notch 2271 in shape and position so as to lock the axial displacement of the first locking notch 2271. As shown in fig. 2 and 3, in practical applications, a double locking structure is adopted to limit the axial displacement of the integrated terminal 2, that is, the integrated terminal 2 is fixedly connected to the insulating plastic body 1 by means of the first locking notch 2271 and the second locking notch 2231, so that the integrated terminal 2 is effectively prevented from coming out of the slot 111, the reliability of insertion and mating in the insulating plastic body 1 is ensured, the reliability and stability of signal transmission are ensured, and the electrical connector is ensured to be always kept in a normal working state.

In addition, the following points are also described here: 1) after the integrated terminal 2 is inserted into the insulating plastic body 1, the eighth folded wall 228 may vertically contact the third folded wall 223, and the first folded wall 221 may contact the fifth folded wall 225. Therefore, on one hand, the conductive core inserting section 22 is favorable for ensuring better structural stability, and the phenomenon of instability caused by external force is avoided; on the other hand, the seventh turnover wall 227 is disposed in parallel just above the third turnover wall 223 and spaced apart from each other by a predetermined distance to well cushion the subsequent inward extending locking pieces 11111 sufficiently entering the first locking notches 2271;

2) either the first locking notch 2271 or the second locking notch 2231 can be formed by punching, so that the manufacturing difficulty of the integrated terminal 2 is reduced to a certain extent, the manufacturing implementation is facilitated, and the manufacturing cost is reduced;

3) in practical application, the integral terminal 2 has good structural stability after being stressed, and is beneficial to ensuring that the integral terminal is effectively and reliably locked after being inserted and matched with the insulating plastic body 1;

4) the requirement on the manufacturing material of the integrated terminal 2 is reduced, so that the manufacturing cost is effectively reduced.

In order to meet the insertion of the plug, some adaptability design is also made on the integrated terminal 2, as shown in fig. 8 and 9, the first folded wall 221 and the second folded wall 222 are folded twice to form a first elastic top contact arm 2211 and a second elastic top contact arm 2221 respectively. The third folding wall 223 and the fourth folding wall 224 are both blanked and pressed to form a third elastic top contact arm 2232 and a fourth elastic top contact arm 2241.

As a further optimization of the structure of the one-piece terminal 2, in order to ensure that the one-piece terminal 2 can reliably hold the pre-plug mating plug and ensure that the signal transmission process can be stably and reliably performed, as shown in fig. 10 and 11, a first concave top contact region 22111, a second concave top contact region 22211, a third concave top contact region 22321 and a fourth concave top contact region 22411 are respectively formed on the first, second, third and fourth elastic top contact arms 2211, 2221, 2232 and 2241. After the plug is inserted into the integrated terminal 2, the first inner concave top contact area 22111, the second inner concave top contact area 22211, the third inner concave top contact area 22321 and the fourth inner concave top contact area 22411 elastically contact the outer side wall of the plug, so that the signal can be reliably and stably transmitted.

Finally, it should be noted that, in order to avoid the occurrence of the structural instability of the conductive core insertion section 22 due to the large pulling force under the premise of ensuring the elastic and stable holding of the plug, as shown in fig. 11, a connecting transition wall 2212 may further extend from the first folded wall 221 to the second folded wall 222. And a first cracking groove 2242 and a second cracking groove 2243 are also formed in the fourth turnover wall 224. The first rupture groove 2242 penetrates through the fourth folding wall 224, the third folding wall 223 and the second folding wall 222 at the same time. The second cleavage groove 2243 is arranged right in front of the first cleavage groove 2242, and extends to the front end surface of the second folding wall 222 via the third folding wall 223.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. An integrated terminal is formed by punching and bending a sheet metal; the integrated terminal is composed of a wire pressing section and a conductive core inserting section which are connected in sequence; the method is characterized in that a first locking notch and a second locking notch are formed on the conductive core insertion section at the same time; the first locking notch is formed by directly blanking the side wall of the conductive core inserting section; the second locking notch is located right behind the first locking notch, is formed by punching the side wall of the conductive core inserting section, and penetrates through the second locking notch along the width direction of the conductive core inserting section.

2. The integrated terminal according to claim 1, wherein the cross section of the conductive core insertion section is shaped like a Chinese character 'hui', and is formed by sequentially bending and connecting a first folded wall, a second folded wall, a third folded wall, a fourth folded wall, a fifth folded wall, a sixth folded wall, a seventh folded wall and an eighth folded wall by 90 degrees along a counterclockwise direction; after the integral terminal is inserted and assembled relative to the insulating plastic body, the eighth folded wall can vertically abut against the third folded wall, and the first folded wall can abut against the fifth folded wall; the first locking notch is formed on the seventh folded wall, and the second locking notch is formed on the third folded wall.

3. The one-piece terminal according to claim 2, wherein the first folded wall and the second folded wall are folded twice to form a first elastic contact arm and a second elastic contact arm respectively; and blanking and profiling the third turnover wall and the fourth turnover wall to respectively form a third elastic top contact arm and a fourth elastic top contact arm.

4. The one-piece terminal according to claim 3, wherein a first concave top contact area, a second concave top contact area, a third concave top contact area and a fourth concave top contact area are respectively formed on the first elastic top contact arm, the second elastic top contact arm, the third elastic top contact arm and the fourth elastic top contact arm.

5. The one-piece terminal as claimed in claim 2, wherein a connecting transition wall extends from the first folded wall to the second folded wall.

6. The integrated terminal as claimed in claim 2, wherein the fourth folded wall is further provided with a first slit groove and a second slit groove; the first cutting groove penetrates through the fourth folding wall, the third folding wall and the second folding wall simultaneously; the second cleavage groove is arranged right in front of the first cleavage groove and extends to the front end surface of the second folded wall through the third folded wall.

7. An electrical connector comprising an insulating plastic body, an integrated terminal as claimed in any one of claims 1 to 6, and a cable; the cable is inserted into the integrated terminal and is compressed by the pressing line segment; the insulating plastic body comprises a plastic main body and a turnover buckle body; along the width direction, a series of slots are arranged in the plastic main body for inserting and matching the integrated terminal; the turnover buckle body is formed on the plastic main body and can freely turn over relative to the plastic main body so as to lock the axial displacement of the second locking notch; forming an elastic limiting arm on the inner side wall of the slot; and an inward extending locking block matched with the first locking notch in shape and position is formed on the elastic limiting arm so as to lock the axial displacement of the first locking notch.

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