CN202888448U - Electrical connector and its terminal set - Google Patents

Abstract

The utility model provides an electric connector and terminal group thereof, it is on the base of insulating pedestal for concave a plurality of holding channels that are equipped with, and concave a plurality of terminal grooves that are equipped with and communicate in holding channel department on the butt joint portion of base one side department, and terminal group is for having the basal portion of being located the holding channel, its basal portion one side department has first piece of buckling for upwards buckling, and buckle downwards by first piece of buckling and have the second to buckle the piece and again towards the place ahead syntropy extension have stretch into the bullet arm in the terminal inslot, the basal portion upwards buckles for the other side department of first piece of buckling has the third to buckle the piece again, so that the width of flattening before the terminal group shaping is unchangeable with the width size after the shaping is buckled to continuous type punching press, can be with terminal group and take under the connection state directly once to the equipment inside insulating pedestal, in order to promote the efficiency of whole equipment operation.

Description

Electrical connector and its terminal set

technical field

The utility model provides an electrical connector and its terminal group, especially the flattened width of the terminal before forming and the width after continuous stamping and bending, so that the terminal group and the material strip can be assembled in place at one time. In the insulating base body, in order to improve the efficiency of the overall assembly operation.

Background technique

Nowadays, with the rapid development of electronic technology, electronic devices such as computers, notebook computers, and liquid crystal displays have been ubiquitous in every corner of society, and because the design of electronic devices nowadays tends to be light, thin, short, and small, the interior of electronic devices The assembly space that can be used to connect multiple cables to the circuit board is becoming narrower and smaller, and the general practice is to achieve electrical connection with the circuit board through a wire-to-board connector. With the size of the connector As the requirements become smaller and smaller, various types of connectors have been developed.

Please refer to Fig. 8, Fig. 9, and Fig. 10, which are the three-dimensional appearance view, the front view before forming and the front view after forming of the existing conductive terminal. It can be clearly seen from the figure that the existing conductive terminal A is bent and formed by punching a sheet metal body, and has a terminal body A1, and side arms A2 extending relatively are provided on both sides of the terminal body A1, and the two side arms A2 are respectively bent downwards to extend a contact arm A21, A connecting portion A3 with a crimping groove A31 is provided at the connection between the terminal body A1 and the side arm A2, and a connecting portion A4 with a crimping groove A41 is also provided at the other side of the connecting portion A3.

However, the existing conductive terminal A still has many shortcomings in practical use, because the wider part of the conductive terminal A after being flattened is the side arm A2 and the side arm A2 extended from the joint part A3 with the U-shaped crimping groove A31 The contact arm A21 extended from the side arm A2, and the conductive terminal A is formed by bending and forming a metal sheet through continuous stamping. Each conductive terminal A needs to be connected by a strip A0, but when the conductive terminal A is flattened The width is wide, and the distance d1 between adjacent conductive terminals A cannot be shortened compared with the distance d2 after stamping and bending. When the conductive terminals A are assembled inside the plastic body, if the adjacent slots on the plastic body (not shown in the figure) if the width spacing between them is smaller than the spacing d2 of a plurality of conductive terminals A, it will cause the conductive terminal A formed by continuous punching and bending to be connected to the strip A0 and cannot be inserted into the plastic body at one time. Therefore, a single conductive terminal A must be assembled or multiple conductive terminals A must be assembled at intervals, resulting in more assembly pressing times and poor assembly efficiency.

Furthermore, the contact arm A21 of the conductive terminal A is formed by bending and extending the opposite side arm A2 from the two sides of the terminal body A1, and then the side arm A2 is bent and extended in multiple sections. This kind of contact arm formed by continuous stamping and bending A21 will increase the difficulty of mold design and manufacture, and the distance d2 between the conductive terminals A after punching and bending will be relatively widened, which will also generate too much waste area and cause waste of materials and costs. Another conductive terminal A The distance between the two contact arms A21 formed by punching and bending is not easy to keep stable, and after the wire is pressed into the crimping groove A31 on the connection part A3, the connection part A3 is easily squeezed and the two contact arms A21 are easily deformed. Variations in the spacing will cause the overall elastic clamping force to become smaller, thereby affecting the structural stability and electrical contact effect, and it needs to be redesigned by those engaged in this industry to effectively solve it.

Utility model content

Therefore, in view of the problems and shortcomings in the use of existing electrical connectors, the creators collected relevant data, evaluated and considered in many ways, and used years of research and development experience in this industry to continuously try and modify, and then designed this kind of connector. A new type of electrical connector and its terminal set was born.

The main purpose of this utility model is to bend upwards a first bending piece at one side of the base of the terminal group, and bend downwards from the first bending piece to form a second bending piece, and then extend toward the front in the same direction with a corresponding Elastic arm, and the base is bent upwards with a third bending piece on the other side of the first bending piece. With this structural design, the flattened width of the terminal group before stamping and bending can be compared with that of continuous stamping After bending and forming, the width remains the same, and the terminal group can be directly assembled in place inside the insulating seat at one time in the state of connecting the terminal group and the strip, without the need to assemble a single terminal separately or connect multiple terminals to the strip Assembling at multiple intervals can effectively reduce the man-hours and costs spent on assembly, so as to improve the efficiency of the overall assembly operation, thereby achieving the effects of stable structure, easy assembly, and reduced production costs.

The secondary purpose of this utility model is that the terminal group is integrally formed by stamping a metal sheet body, and a material strip is connected to the end of the third bending piece of the terminal group, and the terminal group is in a shape before bending and forming. The flat shape is unfolded, and the width and distance between adjacent terminals are the same, so that the width of the terminal group after continuous stamping and bending is not changed, and the width of the base is approximately the same, so that the width and distance between the terminal groups are relatively shortened , by greatly reducing the cutting area of waste materials on the metal sheet body, reducing the difficulty in designing and manufacturing the forming mold, and then improving the utilization rate of materials, so as to effectively save the cost of materials and manufacturing.

The secondary purpose of the present utility model is that the cable is crimped downwards on the first slot and the second slot by piercing the cutting edge formed above the first bending piece and the third bending piece of the terminal group respectively. In the slot, the outer covering layer of the core wire can be peeled off through the first slot and the second slot, and a good electrical connection with the terminal group can be formed. Type assembly and positioning can prevent the cable from loosening or detaching when it is pulled or affected by external force. The overall structure is more stable to ensure the effect of electrical contact, and achieve the effects of stable structure, simple assembly and convenient mass production.

The utility model provides an electrical connector, including an insulating base body and a terminal group, wherein:

The surface of the base of the insulating seat body is recessed with a plurality of accommodating channels arranged at intervals in the transverse direction, and a docking part is provided on one side of the base, and a groove connected to the accommodating part is recessed on the surface of the docking part. Multiple terminal slots at the channel;

The terminal group has a base positioned in the accommodating channel of the insulating base, and a first bending piece is bent upward on one side of the base, and is bent downward by the first bending piece to be flat against the first The second bending piece on the bending piece extends toward the front in the same direction as an elastic arm extending into the terminal groove, and there are longitudinal sections at the junction of the first bending piece and the second bending piece respectively for preset The first slot for the electrical connection of the cable and the opening wider than the first slot are provided, and a third bent piece is bent upward at the base relative to the other side of the first bent piece, and the third bent piece is bent upward. The upper part of the folded piece is longitudinally cut with a second slot for electrical connection of the preset cable, and at least one preset material strip is connected to the end of the third bent piece.

Wherein, the two side walls of the accommodating channel of the insulating base body are cut with a slot for the two sides of the third bending piece of the terminal group to be embedded therein to form a positioning slot.

Wherein the front of the terminal groove of the insulating base body is provided with an insertion port, and each terminal groove is adjacent to the accommodation channel to form a step-shaped blocking part, and the rear side wall of the first bending piece of the terminal group is formed. There is a resisting surface against the blocking portion, and the two elastic arms at the ends of the second bending piece correspond to the insertion ports respectively.

Wherein the base of the insulating base body is provided with a holding part with a plurality of crimping grooves on the other side of the butt joint part, and each crimping groove is connected to the accommodating groove of the base respectively, and is connected to the crimping groove The two side walls of the upper opening of the upper opening are provided with clamping blocks for forcing the preset cables into the crimping groove to form a fixed position.

The utility model also provides a terminal group of an electrical connector, which is characterized in that it includes a terminal group, a first bending piece is bent upward on one side of the base of the terminal group, and the first bending piece There is a second bending piece that is flatly attached to the surface of the first bending piece and is bent downwards, and an elastic arm extending into the terminal groove extends forward in the same direction, and is connected between the first bending piece and the second bending piece. A first slot and an opening wider than the first slot are longitudinally cut at the joints of the folded pieces, and a third bent piece is bent upward at the other side of the base relative to the first bent piece, and the first bent piece is bent upwards. A second slit is longitudinally cut above the three bent pieces, and at least one preset material belt is connected to the end of the third bent piece.

Wherein the terminal group is integrally formed by punching a metal sheet.

Wherein the end of the second bent piece of the terminal group is lower than the bottom surface of the base.

Wherein the two elastic arms of the terminal group are formed with positioning protrusions on the inner sides opposite to each other.

The beneficial effects of the utility model are: the efficiency of the overall assembly operation can be improved, the cost of materials and manufacturing can be effectively saved, and the utility model has the effects of stable structure, simple assembly and convenient mass production.

Description of drawings

In order to achieve the above-mentioned purpose and effect, the technical means and structure thereof adopted in the utility model, the drawing is hereby illustrated in detail with respect to the preferred embodiment of the utility model.

Fig. 1 is a perspective view of the utility model.

Fig. 2 is a three-dimensional exploded view of the utility model.

Fig. 3 is a three-dimensional exploded view of another perspective of the utility model.

Fig. 4 is a three-dimensional sectional view of the utility model.

Fig. 5 is a front view of the terminal of the present invention before molding.

Fig. 6 is a front view of the molded terminal of the utility model.

Fig. 7 is a three-dimensional exploded view of a preferred embodiment of the present invention.

FIG. 8 is a three-dimensional appearance view of a conventional conductive terminal.

Fig. 9 is a front view of the conventional conductive terminal before molding.

Fig. 10 is a front view of a conventional conductive terminal after molding.

Detailed ways

Please refer to Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, it is the three-dimensional appearance diagram, the three-dimensional exploded view, the three-dimensional exploded view and the three-dimensional sectional view of the utility model, as can be clearly seen from the figure, The utility model includes an insulating base body 1, a terminal group 2 and a cable 3, so the main components and features of this case are described in detail below, wherein:

The insulating seat body 1 has a base 11, and a plurality of accommodating channels 12 arranged at intervals in the transverse direction are recessed on the surface of the base 11, and the two side walls of each accommodating channel 12 are provided with opposite Embedding groove 121, and base 11 side front place then is provided with docking part 13, and on the surface of docking part 13, be provided with a plurality of terminal slots 131 that are connected to accommodating groove 12 places, and the front bottom surface of terminal slots 131 Each terminal slot 131 is provided with a step-shaped blocking portion 132 adjacent to the accommodating slot 12, and the other side of the base 11 relative to the docking portion 13 is provided with a The holding part 14 where the cable 3 is positioned, and a plurality of crimping grooves 141 connected to the accommodating channel 13 are longitudinally sectioned on the holding part 14, and the two side walls of the upper opening of each crimping groove 141 are provided with The opposite clamping block 142 is further provided with protruding blocking blocks 15 at the left and right sides of the base 11 .

The terminal group 2 is integrally formed by stamping a metal sheet, and has a base 21 that can be positioned in the accommodating channel 12, and a first bending piece 22 is bent upward on one side of the base 21, and is formed by the second A bent piece 22 is bent downward to have a second bent piece 23, and its second bent piece 23 is flat on the surface of the first bent piece 22 and the end is lower than the position of the bottom surface of the base 21, and then the second bent piece 23 At the end of the bending piece 23, there are opposite horizontal elastic arms 24 extending forward in the same direction, and a positioning protrusion 241 is formed on the opposite inner side of the second elastic arm 24, where the first bending piece 22 and the second bending piece 23 are connected. The first slot 221 and the opening 231 with a width wider than the first slot 221 are longitudinally sectioned respectively, and an abutment surface 222 is formed on the rear side wall of the first bending piece 22; On the other side of the first bending piece 22, there is a third bending piece 25 bent upwards, and a second slit corresponding to the first slit 221 is longitudinally cut above the end of the third bending piece 25 251, and at least one strip 20 is connected to the end of the third bending piece 25.

The cable 3 can be a single or multiple wires assembled into a wire bundle, and a core wire 31 is passed through the cable 3 .

When the utility model is assembled, the terminal group 2 formed by continuous punching and bending is firstly assembled in place in the insulating base 1 in the state of connecting the strip 20, and the buckles on both sides of the base 21 are protruded. The block 211 is pushed downward into the accommodation channel 12 of the base 11 by means of pressing to be positioned, while the first bent piece 22 and the second bent piece 23 extend into and are located in the terminal groove of the docking portion 13 The inside of 131 forms a suspended state, and the abutment surface 222 at the rear side wall of the first bent piece 22 is abutted against the step-shaped blocking portion 132 of the terminal groove 131 adjacent to the accommodating channel 12, and the second The two elastic arms 24 extending in the same direction at the end of the bent piece 23 correspond to the socket 130 on the front bottom surface of the terminal slot 131 respectively, and at the same time, the two sides of the third bent piece 25 on the other side of the base 11 are embedded in the The two sidewalls of the accommodating channel 12 are positioned in the opposite embedded groove 121, and then at least one of the strips 20 connected to the end of the third bending piece 25 is cut off. This type of terminal group formed by continuous stamping and bending 2. In the state of being connected to the tape 20, it is directly assembled in one place and assembled inside the insulating base 1 to form a finished product. It is not necessary to assemble a single terminal separately or to assemble multiple terminals at intervals in a state of connecting multiple terminals to the tape 20. , can effectively reduce the man-hours and costs spent on assembly, so as to improve the efficiency of the overall assembly operation, and then achieve the effects of stable structure, easy assembly and lower production costs.

Continue to push the cables 3 downwards into the crimping groove 141 along the opposite holding blocks 142 on the two side walls of the upper opening of the holding part 14 of the insulating seat body 1 to form a position, and make the front section of the cables 3 position The V-shaped cutting edges 220 and 250 formed above the first bending piece 22 and the third bending piece 25 of the terminal group 2 are respectively pressed downward to the first slot 221 and the second slot 251 by piercing. Inside, the outer covering layer of the core wire 31 can be peeled off through the first slot 221 and the second slot 251, so that the core wire 31 of the cable 3 and the terminal group 2 can be fixed and positioned firmly, and a good electrical connection can be formed. In the permanent connection state, the first bending piece 22 and the third bending piece 25 of the terminal group 2 and the cable 3 are assembled and positioned in two stages by piercing, so that the cable 3 is not easily affected by pulling or external force. Any looseness or detachment occurs, the overall structure is more stable, and the effect of electrical contact is ensured. At the same time, the assembly procedure of the cable 3 becomes more streamlined, even if the cable 3 is assembled into a harness by multiple wires. The core wire 31 can be easily connected with the terminal group 2, and achieves the effects of stable structure, simple assembly and convenient mass production.

Please refer to Fig. 5, Fig. 6 and Fig. 7, which are the front view of the terminal of the present invention before forming, the front view of the terminal after forming and the three-dimensional exploded view of the preferred embodiment. It can be clearly seen from the figure that Wherein the terminal group 2 is integrally formed by punching a metal sheet, and a strip 20 is connected to the end of the third bending piece 25 of the terminal group 2, and the terminal group 2 is unfolded before being bent and formed. Planar shape, and the width distance D between adjacent terminals is the same. With this structural design, the flattened width of the terminal group 2 before stamping and bending can be kept unchanged from the width after continuous stamping and bending. And approximately the same as the width of the base 21, so that the width distance D between the terminal groups 2 is relatively shortened, by greatly reducing the cutting area of waste materials on the metal sheet body, reducing the difficulty in the design and manufacture of the molding die, and then The utilization rate of materials can be improved to effectively save the cost of materials and manufacturing.

When the utility model is in use, the butt joint 13 at the front of the insulating base 1 is plugged into the slot 41 of the external socket 4, and the protruding stoppers 15 at the two sides of the base 11 will resist Hold on the opening front of the slot 41 to form a stop on the wall surface, and make the plurality of conductive terminals 42 positioned in the slot 41 penetrate through the corresponding sockets 130 on the docking part 13, and the insulating seat body 1 During the insertion process of the docking part 13 of the terminal group 2, the elastic arms 24 extending in the same direction in front of the terminal group 2 will be pushed by the conductive terminals 42 to elastically deform outward, and the positioning bumps 241 on the inner side of the two elastic arms 24 The abutting contact forms a clamping position on the conductive terminal 42 , which can ensure the effect of the overall electrical contact and signal transmission.

Please refer to Fig. 2, Fig. 5 and Fig. 6, the utility model aims at bending upwards a first bending piece 22 on one side of the base 21 of the terminal group 2, and bending upwards from one side to form a The first bending piece 22 is bent downward to form a second bending piece 23 , and then a corresponding elastic arm 24 extends forward in the same direction, and the other side of the base 21 relative to the first bending piece 22 is bent upward. There is a third bending piece 25, so that the flattened width of the terminal group 2 before forming is the same as the width after continuous stamping and bending, so that the terminal group 2 and the strip 20 can be directly assembled in one place In the interior of the insulating base 1, and because the width distance D between the terminal groups 2 is relatively shortened, the cutting area of waste materials on the metal sheet body can be greatly reduced, thereby achieving the effects of stable structure, easy assembly and reduced production cost.

The above detailed description is just a description of a preferred feasible embodiment of the utility model, but this embodiment is not used to limit the scope of the patent application of the utility model, and all others are completed without departing from the technical spirit disclosed in the utility model All equivalent changes and modification changes shall be included in the scope of claims covered by the present utility model.

In summary, the electrical connector and its terminal group of the present utility model can indeed achieve its function and purpose, so the utility model is a creation with excellent practicability, and it really meets the application conditions of a new patent, so the application is filed according to law .

Claims (8)

1. An electrical connector, comprising an insulating base body and a terminal group, characterized in that: The surface of the base of the insulating seat body is recessed with a plurality of accommodating channels arranged at intervals in the transverse direction, and a docking part is provided on one side of the base, and a groove connected to the accommodating part is recessed on the surface of the docking part. Multiple terminal slots at the channel; The terminal group has a base positioned in the accommodating channel of the insulating base, and a first bending piece is bent upward on one side of the base, and is bent downward by the first bending piece to be flat against the first The second bending piece on the bending piece extends toward the front in the same direction as an elastic arm extending into the terminal groove, and there are longitudinal sections at the junction of the first bending piece and the second bending piece respectively for preset The first slot for the electrical connection of the cable and the opening wider than the first slot are provided, and a third bent piece is bent upward at the base relative to the other side of the first bent piece, and the third bent piece is bent upward. The upper part of the folded piece is longitudinally cut with a second slot for electrical connection of the preset cable, and at least one preset material strip is connected to the end of the third bent piece. 2. The electrical connector as claimed in claim 1, wherein the two side walls of the accommodating channel of the insulating base body are provided with a third bending piece for the terminal group to be embedded in the two side walls to form a Positioned sockets. 3. The electrical connector as claimed in claim 1, wherein an insertion port is provided at the front of the terminal groove of the insulating base body, and each terminal groove is adjacent to the receiving groove to form a step-shaped blocking portion, and A resisting surface against the blocking portion is formed on the rear side wall of the first bending piece of the terminal group, and the two elastic arms at the ends of the second bending piece correspond to the insertion ports respectively. 4. The electrical connector as claimed in claim 1, wherein the base of the insulating seat body is provided with a holding portion with a plurality of crimping grooves on the other side of the base relative to the abutting portion, and each crimping groove communicates with the base respectively. At the accommodating channel of the seat, and on the two side walls of the upper opening of the crimping groove, there are clamping blocks for the preset cable to be forced into the crimping groove to form a position. 5. A terminal group of an electrical connector, characterized in that it includes a terminal group, a first bending piece is bent upward on one side of the base of the terminal group, and is bent downward by the first bending piece There is a second bending piece that is flatly attached to the surface of the first bending piece, and an elastic arm extending into the terminal groove is extended forward in the same direction, and is connected to the first bending piece and the second bending piece A first cut groove and an opening wider than the first cut groove are respectively longitudinally sectioned, and a third bend piece is bent upward at the other side of the base relative to the first bend piece, and the third bend A second slit is longitudinally cut on the top of the sheet, and at least one pre-material belt is connected to the end of the third bending sheet. 6. The terminal set of an electrical connector as claimed in claim 5, wherein the terminal set is integrally formed by stamping a metal sheet. 7. The terminal set of an electrical connector as claimed in claim 5, wherein the end of the second bent piece of the terminal set is lower than the bottom surface of the base. 8 . The terminal set of an electrical connector as claimed in claim 5 , wherein positioning protrusions are formed on opposite inner sides of the two elastic arms of the terminal set.

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