TWI482366B - Cable connection device - Google Patents

Description

Cable connecting device

The invention relates to a cable connecting device, in particular to a wire connecting device which is simple and convenient in process and can reduce production cost.

In the prior art, the cable connecting device is more and more widely used in various electronic devices, such as a notebook computer, and the structure thereof mainly includes a cable and a conductive terminal connected to the cable, the cable has A conductive core wire and an insulating sheath covering the periphery of the conductive core wire, the conductive core wire being composed of a plurality of metal wires having an exposed portion extending from the insulating skin. The conductive terminal is stamped and bent from a metal sheet, and includes a first crimping portion for fixing the insulation of the cable and a second crimping portion electrically contacting the exposed portion of the conductive core.

However, such conventional cable connecting devices are prone to two problems in production. The first problem is that the production cost of the cable can no longer be improved or worked hard to achieve cost reduction; second The problem is that when the cable is assembled to the conductive terminal, a part of the insulation is removed to form a bare section of the conductive core, and then the first crimping portion is used to press the insulation to fix the cable, and the second crimping portion is used to call the cable. Sexual contact with the bare section of the conductive core wire, because the butted structure formed between the exposed section of the conductive core wire and the insulating skin is convex and two The thickness difference between the two is too large, so that the first crimping portion and the second crimping portion cannot be integrated into a single component, which results in a process that is not only complicated but also tends to increase the production cost. The above two problems will lead to the inability of the product to reduce the cost, which does not meet the demand of reducing the production cost in the current market.

Conventional cable connecting devices are prone to complicated manufacturing processes and cannot reduce the cost during production, which does not meet the demand for lowering production costs in the market today.

The invention provides a cable connecting device, comprising a wire arranging unit and a conductive terminal, wherein the wire arranging unit is composed of a metal wire and an insulating layer on one of the upper and lower cladding metal wires and a lower insulating layer, wherein the end of the wire arranging unit has The pair of connecting portions form a guiding surface on the butting portion. The conductive terminal is assembled on the mating portion of the end of the wire arranging unit, the conductive terminal has a bearing portion, and the abutting portion is disposed on the carrying portion, the positioning portion is provided with a positioning portion and a crimping portion, and the docking portion of the wire arranging unit is fastened The crimping portion is pressed against the abutting portion by the positioning portion, and the guiding surface is electrically connected to the conductive terminal.

The cable connecting device provided by the present invention replaces the original cable by using a cable unit with a single metal wire, because the manufacturing cost of the cable unit is much lower than the cost of the cable, and the cable is low. The abutting portion of the unit has a flat structure without a problem of excessive thickness deviation, and the process of assembling the conductive terminal is also simpler than the prior art. It is easy, so it can effectively solve the problem that the conventional technology is easy to cause the process to be complicated and the production cost cannot be reduced.

Referring to the preferred embodiment shown in the first to second figures, the present invention provides a cable connecting device 1 comprising a wire arranging unit 2 and a conductive terminal 3.

The wire arranging unit 2 is composed of a single metal wire 21 and an insulating layer 221 and a lower insulating layer 222 on one of the metal wires 21, and the end of the wire arranging unit 2 has a pair of connecting portions 23, and the metal wire 21 A guiding surface 211 is formed on the butting portion 23. Alternatively, the cable unit 2 may be composed of a plurality of metal wires 21 and an insulating layer 221 and a lower insulating layer 222 overlying the metal wires 21. In the present embodiment, the cable unit 2 can be formed through a cutting line through a general flexible cable (not shown), so that mass production can be easily achieved, and the production cost can be effectively reduced.

In the present embodiment, the lower insulating layer 222 is longer than the upper insulating layer 221 to form the abutting portion 23, and the guiding surface 211 is formed on the abutting portion 23 of the lower insulating layer 222, and a reinforcing layer is attached under the butting portion 23. The board 24 is not limited thereto. Alternatively, the lower insulating layer 222 and the upper insulating layer 221 are equal in length. The butting portion 23 is not provided with the lower insulating layer 222 but is completely replaced by the reinforcing plate 24. The guiding surface 211 is directly disposed on the reinforcing plate 24. In other words, the docking portion of the present invention 23 may be a single layer lower insulating layer 222 or a reinforcing plate 24, or a double layer structure composed of a lower insulating layer 222 and a reinforcing plate 24.

The conductive terminal 3 is assembled on the abutting portion 23 at the end of the wire arranging unit 2, the conductive terminal 3 has a bearing portion 31, and the abutting portion 23 is disposed on the carrying portion 31. The carrying portion 31 is provided with a positioning portion 32 and a crimping portion. 33. The end of the abutting portion 23 of the wire arranging unit 2 abuts against the positioning portion 32 so that the relative position between the abutting portion 23 and the crimping portion 33 can be fixed, and then the crimping portion 33 is pressed against the abutting portion 23 The conductive surface 211 can be electrically connected to the conductive terminal 3.

In this embodiment, the crimping portion 33 includes two oppositely disposed abutting claws. The two abutting claws are respectively disposed on two sides of the carrying portion 31. The ends of the two abutting claws are provided with contact points 331, and the guiding surfaces 211. The contact point 331 is faced, and the contact point 331 is directly pressed against the contact surface 211. The invention is not limited thereto. Alternatively, as shown in the third figure, the guiding surface 211 faces the bearing portion 31, and the pressing portion 33 is pressed against the reinforcing plate 24 and the abutting portion 23, so that the guiding surface 211 can directly Contact with the carrier portion 31. It can be understood that the crimping portion 33 also has the function of fixing the abutting portion 23 to the bearing portion 31. Therefore, the crimping portion 33 of the embodiment can have both the fixed and the electrically conductive functions, which is attributed to The abutting portion 23 is a flat structure, and the guiding surface 211 is disposed on the lower insulating layer 222 and there is no problem that the thickness difference between the lower insulating layer 222 and the lower insulating layer 222 is too large. In this embodiment, the guiding is achieved. The face 211 is a flat shape, but is not limited thereto, and an arc shape or other shape can also be applied to the present invention.

Further, a fixing portion 34 is further disposed on the bearing portion 31 of the conductive terminal 3, and the fixing portion 34 is fastened to the abutting portion 23, so that the abutting portion 23 of the wire arranging unit 2 can be more stably fixed to the carrying portion 31. In the embodiment, the fixing portion 34 includes a first claw portion 341 and a second claw portion 342. The first claw portion 341 includes two first claws disposed oppositely, and the second claw portion 342 includes two opposite positions. The second claw and the crimping portion 33 are provided between the first claw portion 341 and the second claw portion 342.

The first claws of the first claw portion 341 are respectively disposed on both sides of the carrying portion 31 and directly pressed against the lower insulating layer 222, and the second claws of the second claw portion 342 are also respectively disposed on the bearing portion. Both sides of 31 are directly pressed against the lower insulating layer 222. However, the other is that, as shown in the fourth figure, the width of the guiding surface 211 is deliberately designed to be large, so that the two first claws can directly contact the guiding surface 211, and the second The claws also directly contact the contact surface 211. Therefore, the fixing portion 34 of the present invention has a function of electrically conducting the conductive surface 211 in addition to the fixing function. In another option, the width of the guiding surface 211 is constant, but the first and second claws are designed to be bent and extended to directly contact the guiding surface 211, so that the fourth drawing can be achieved. effect.

The conductive terminal 3 further includes a lap portion 35 and a connecting portion 36 connected to the lap portion 35 and the carrying portion 31. The side of the bearing portion 31 adjacent to the lap portion 35 is provided with a positioning portion 32. Between the connecting portion 35 and the crimping portion 33, the connecting portion 36 is provided with an opening 361, and the positioning portion 32 is formed on one side of the opening 361, it is worth mentioning that The positioning portion 32 is originally filled with the material in the opening 361. After the stamping and bending, the positioning portion 32 is formed. Therefore, the positioning portion 32 is formed on the side of the opening 361 of the connecting portion 36 to facilitate the metal stamping forming structure and the manufacturing process. the design of.

In addition, it is worth mentioning that, in order to improve the bonding force between the abutting portion 23 of the wire arranging unit 2 and the conductive terminal 3, as shown in the fifth and sixth figures, in particular, at least the abutting portion 23 is provided. An interference portion 25 is fixed to the crimping portion 33 or the fixing portion 34 by interference, so that the butting portion 23 is not easily released from the carrying portion 31. It can be understood that the interference portion 25 is formed on both sides of the abutting portion 23, and may be disposed only on both sides of the reinforcing plate 24.

In summary, the cable connecting device of the present invention replaces the original cable by using a cable unit having a single metal wire, because the manufacturing cost of the cable unit is much lower than the cost of the cable, and The abutting portion of the wire arranging unit has a flat structure without a problem of excessive thickness difference, and the process of assembling the conductive terminal is also simpler and easier than the prior art, so that the conventional technology can easily solve the process complexity and The problem that production costs cannot be reduced.

The above detailed description is intended to be illustrative of a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and other equivalents and modifications may be made without departing from the spirit of the invention. Changes are intended to be included in the scope of the patents covered by the present invention.

1‧‧‧Cable connecting device

2‧‧‧ cable unit

21‧‧‧Metal wire

211‧‧‧Contact surface

221‧‧‧Upper insulation

222‧‧‧lower insulation

23‧‧‧Docking Department

24‧‧‧ reinforcing plate

25‧‧‧Interference Department

3‧‧‧Electrical terminals

31‧‧‧ Carrying Department

32‧‧‧ Positioning Department

33‧‧‧Crimping department

331‧‧‧Contact points

34‧‧‧Fixed Department

341‧‧‧The first claw

342‧‧‧Second claws

35‧‧‧ lap joint

36‧‧‧Connecting Department

361‧‧‧ openings

The first figure is an exploded schematic view of the cable connecting device of the present invention.

The second figure is a perspective view of the cable connecting device of the first figure.

The third figure is a perspective view of another cable connecting device of the present invention.

The fourth figure is a perspective view of still another cable connecting device of the present invention.

Fig. 5 is an exploded perspective view showing still another type of cable connecting device of the present invention.

The sixth figure is a perspective view of the cable connecting device of the fifth figure.

1‧‧‧Cable connecting device

2‧‧‧ cable unit

21‧‧‧Metal wire

211‧‧‧Contact surface

221‧‧‧Upper insulation

222‧‧‧lower insulation

23‧‧‧Docking Department

24‧‧‧ reinforcing plate

3‧‧‧Electrical terminals

31‧‧‧ Carrying Department

32‧‧‧ Positioning Department

33‧‧‧Crimping department

341‧‧‧The first claw

342‧‧‧Second claws

35‧‧‧ lap joint

36‧‧‧Connecting Department

Claims (9)

A cable connecting device comprises: a wire arranging unit, wherein the wire arranging unit is composed of a metal wire and an upper insulating layer and an insulating layer covering the metal wire; the end of the wire arranging unit has a pair of ends The metal wire forms a guiding surface on the butting portion, the butting portion is a flat structure, the abutting portion includes a reinforcing plate, and a conductive terminal is assembled on the butting portion at the end of the wire connecting unit The conductive terminal has a bearing portion, and the abutting portion is disposed on the carrying portion. The receiving portion is provided with a positioning portion and a crimping portion, and the abutting portion of the wire connecting unit is abutted against the positioning portion. The crimping portion is pressed against the mating portion, and the guiding surface is electrically connected to the conductive terminal. The cable connecting device of claim 1, wherein the crimping portion has at least one contact point, the guiding surface facing the contact point, the contact point contacting the guiding surface. The cable connecting device of claim 1, wherein the guiding surface faces the bearing portion, and the bearing portion directly contacts the guiding surface. The cable connecting device of claim 1, wherein the crimping portion comprises two abutting claws respectively disposed on two sides of the bearing portion, and the ends of the two abutting claws are directly pressed Contact with the guiding surface. The cable connecting device of claim 1, wherein the supporting portion is further provided with a fixing portion, the fixing portion is fastened to the abutting portion, and the abutting portion of the wire arranging unit is fixed on the carrying portion. The cable connecting device of claim 5, wherein the fixing portion comprises a first claw portion and a second claw portion, the first claw portion includes two first claws, and the second claw portion The second claw is included, and the crimping portion is disposed between the first claw portion and the second claw portion. The cable connecting device of claim 6, wherein the two first claws are respectively disposed on two sides of the bearing portion and directly press-contacted to the guiding surface, and the two second claws are respectively disposed on Both sides of the bearing portion are directly pressed against the guiding surface. The cable connecting device of claim 1, wherein the conductive terminal further comprises a lap portion and a connecting portion connected to the lap portion and the carrying portion, the bearing portion is adjacent to a side of the lap portion The positioning portion is disposed between the overlapping portion and the crimping portion, and the connecting portion is provided with an opening formed on one side of the opening. The cable connecting device of claim 1, wherein the guiding surface is flat, and the reinforcing plate is provided with at least one interference portion for interference fixing to the conductive terminal.