CN220825553U

CN220825553U - Soldering tool

Info

Publication number: CN220825553U
Application number: CN202322225559.1U
Authority: CN
Inventors: 杨晓枫; 曹楷; 曹辉
Original assignee: Shanghai Ruipu Energy Co Ltd
Current assignee: Shanghai Ruipu Energy Co Ltd
Priority date: 2023-08-17
Filing date: 2023-08-17
Publication date: 2024-04-23
Anticipated expiration: 2033-08-17

Abstract

The utility model belongs to the technical field of soldering, and discloses a soldering tool. The soldering tool comprises a welding head, wherein the welding head is provided with a first channel, a plurality of second channels and a plurality of grooves, welding wires can be arranged in the first channel in a penetrating mode, the grooves are uniformly arranged on one end face of the welding head at intervals along the length direction of the first channel, the second channels are in one-to-one correspondence with the grooves, the second channels are communicated with the first channels and the grooves, the end faces between the adjacent grooves are first contact faces, the surface of a plate body between adjacent golden fingers is second contact faces, and the first contact faces can be in butt joint with the second contact faces. Because the first contact surface is abutted with the second contact surface during welding, liquid cannot flow onto the second contact surface, the problem that residual solder or soldering flux can lead to the creepage distance between golden fingers to be reduced is solved, poor insulation and even short circuit are avoided, and the safety performance of a vehicle is improved.

Description

Soldering tool

Technical Field

The utility model relates to the technical field of soldering, in particular to a soldering tool.

Background

A PCB (Printed Circuit Board ) circuit board is an important electronic component, is a support for electronic components, is a carrier for electrically interconnecting electronic components, and is almost every electronic device, as small as an electronic wristwatch, a calculator, as large as a computer, a communication electronic device, and a military weapon system, and as long as there are electronic components such as an integrated circuit, a printed circuit board is used for electrically interconnecting the respective components. With the rapid development of automobile technology, a PCB (printed Circuit Board) is used as an important element in an automobile, and once the connection between the PCB and other elements is disconnected, the function of an automobile part is possibly invalid, so that the welding quality of the PCB and other circuits is important.

In general, a PCB is connected to other circuits by soldering, which is a soldering method that a low-melting metal solder is melted by heating and then penetrates into and fills gaps at the connection positions of metal pieces. In the current wave soldering technology of tin soldering, a welding wire is directly clamped between a welding head and a PCB, and the welding head is heated to melt the welding wire, so that a wire harness, a wire arrangement or a flexible circuit board and a golden finger of the PCB are welded together. Therefore, before welding, the welding wires are transversely arranged above the PCB, each golden finger is connected together, after the welding wires are heated and melted, liquid flows to the surface of the PCB, liquid on the surface of the PCB is converged to the position where the golden finger is located due to siphoning, a small amount of solder or soldering flux is remained on the surface of the PCB between the golden fingers after welding, the surface of the golden finger is separated by the PCB, the residual solder or soldering flux can lead to the creepage distance between the golden fingers to be reduced, insulation failure and even short circuit are easily caused in the using process of products, the control panel is burnt out, and the whole vehicle is suddenly lost.

Disclosure of utility model

The utility model aims to provide a soldering tool for solving the technical problem that the existing soldering can cause poor insulation and short circuit due to the fact that solder or soldering flux remains on the surface of a PCB.

To achieve the purpose, the utility model adopts the following technical scheme:

The utility model provides a soldering frock, includes the bonding tool, the bonding tool is provided with first passageway, a plurality of second passageway and a plurality of recess, and the welding wire can wear to locate in the first passageway, a plurality of the recess is followed the length direction of first passageway evenly spaced set up in an terminal surface of bonding tool, a plurality of second passageway and a plurality of recess one-to-one, just the second passageway intercommunication first passageway with the recess, adjacent terminal surface between the recess is first contact surface, and the plate body surface between the adjacent golden finger is the second contact surface, first contact surface can with second contact surface butt.

Preferably, the axis of the first channel is parallel to the end face of the welding head, and is perpendicular to the axis of the second channel.

Preferably, the first channel and the second channel are both cylindrical.

Preferably, the device further comprises a third channel, wherein the third channel is arranged at one end of the second channel, which is close to the first channel, the third channel is conical, and the opening of the third channel, which is close to the first channel, is larger than the opening of the third channel, which is close to the second channel.

Preferably, the first channel is disposed on a side of the welding head adjacent to the groove.

Preferably, the distance between the axis of the first channel and the bottom of the groove is less than or equal to 1cm.

Preferably, the grooves are semicircular in cross section perpendicular to the length direction thereof.

Preferably, the grooves are triangular in cross section perpendicular to the length direction thereof.

Preferably, the first contact surface is adapted to the shape of the second contact surface.

Preferably, the welding head is made of copper.

The beneficial effects are that: the utility model provides a soldering frock for welding PCB circuit board and winding displacement. The soldering tool comprises a welding head, wherein the welding head is provided with a first channel, a plurality of second channels and a plurality of grooves. When welding, the grooves are in one-to-one correspondence with the butted golden fingers and the wire heads, at the moment, the first contact surface is butted with the second contact surface, and the butted first contact surface and the butted second contact surface thoroughly separate the golden fingers. Then, heat the welding wire in the first passageway, the welding wire can melt into liquid in the first passageway, liquid welding wire can flow through the second passageway from first passageway under the action of gravity and reach the recess at last and weld golden finger and end of a thread, because first contact surface has the butt with the second contact surface, liquid can not flow to the second contact surface on, the problem that residual solder or welding aid can lead to creepage distance between the golden finger to diminish has been solved, avoid causing insulation failure, even short circuit, promote the security performance of vehicle.

Drawings

FIG. 1 is a schematic view of a bonding tool according to an embodiment of the present utility model;

FIG. 2 is a front view of a bonding tool provided in an embodiment of the present utility model;

FIG. 3 is a schematic illustration of a weld provided by an embodiment of the present utility model;

Fig. 4 is a schematic diagram of the cooperation between a flat cable and a PCB according to an embodiment of the present utility model;

Fig. 5 is a second schematic diagram of the cooperation between the flat cable and the PCB according to the embodiment of the present utility model;

fig. 6 is a schematic diagram of the cooperation of the first channel, the second channel and the third channel according to the embodiment of the present utility model.

In the figure:

100. a PCB circuit board; 101. a golden finger; 102. a second contact surface;

200. a flat cable; 201. a thread end;

300. A welding wire;

1. welding head; 11. a groove; 12. a first channel; 13. a second channel; 14. a first contact surface; 15. and a third channel.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

With the rapid development of automobile technology, a PCB (printed Circuit Board) is used as an important element in an automobile, and once the connection between the PCB and other elements is disconnected, the function of an automobile part is possibly invalid, so that the welding quality of the PCB and other circuits is important. In the wave soldering technology adopted in the prior art, welding wires are generally clamped between a welding head and a PCB (printed circuit board), the welding wires are arranged above the PCB, the welding head is heated to enable the welding wires to be melted to weld a wire harness, a flat cable or a flexible circuit board with golden fingers of the PCB together, but after welding is completed, a small amount of solder or soldering flux possibly remains on the surface of the PCB between the golden fingers due to the fact that the welding wires are clamped between the welding head and the PCB, the surface of the golden fingers is separated by the PCB, the residual solder or soldering flux can lead to the creepage distance between the golden fingers to be reduced, insulation failure and even short circuit are easy to cause in the use process of products, so that a control board is burnt out, and the whole vehicle is suddenly lost. In order to solve the technical problems, the embodiment of the application provides a soldering tool.

Referring to fig. 1-6, the present utility model provides a soldering tool for soldering a PCB 100 and a flat cable 200. The soldering tool comprises a soldering head 1, and the soldering head 1 can solve the technical problems that the existing soldering can cause poor insulation and short circuit caused by the fact that solder or soldering flux remains on the surface of a PCB 100.

The PCB 100 comprises a plate body and a plurality of golden fingers 101, wherein the golden fingers 101 are uniformly arranged at intervals, one end of a flat cable 200 is provided with a plurality of wire heads 201, the wire heads 201 are in one-to-one corresponding abutting connection with the golden fingers 101, the soldering fixture provided by the application comprises a soldering head 1, the soldering head 1 is provided with a first channel 12, a plurality of second channels 13 and a plurality of grooves 11, a soldering wire 300 can be arranged in the first channel 12 in a penetrating manner, the grooves 11 are uniformly arranged on one end face of the soldering head 1 at intervals along the length direction of the first channel 12, the second channels 13 are communicated with the first channel 12 and the grooves 11, the grooves 11 are in one-to-one correspondence with the golden fingers 101, the end faces between the adjacent grooves 11 are first contact faces 14, the surface of the plate body between the adjacent golden fingers 101 is a second contact face 102, and the first contact faces 14 can be in abutting connection with the second contact faces 102.

When welding, the grooves 11 are in one-to-one correspondence with the butted golden fingers 101 and the wire heads 201, at this time, the first contact surface 14 is butted with the second contact surface 102, and the butted first contact surface 14 and the butted second contact surface 102 thoroughly separate the golden fingers 101. Then, the welding wire 300 in the first channel 12 is heated, the welding wire 300 is melted into liquid in the first channel 12, the liquid welding wire 300 flows through the second channel 13 from the first channel 12 under the action of gravity and finally reaches the groove 11 to weld the golden finger 101 with the wire head 201, and the liquid does not flow onto the second contact surface 102 because the first contact surface 14 is abutted with the second contact surface 102, so that the problem that the creepage distance between the golden fingers 101 is reduced due to residual solder or auxiliary welding is solved, poor insulation and even short circuit are avoided, and the safety performance of a vehicle is improved.

The shapes of the first channel 12 and the second channel 13 are not limited herein, in this embodiment, the first channel 12 and the second channel 13 are both cylindrical and are matched with the shape of the welding wire 300, the circular inner wall is smooth and is not easy to remain, and in other embodiments, the cross sections of the first channel 12 and the second channel 13 may be rectangular. In other possible embodiments, the second channel 13 may also be tapered, the large open end of the second channel 13 communicating with the first channel 12 and the small open end of the second channel 13 communicating with the recess 11. So that the melted welding wire 300 more smoothly flows from the first passage 12 to the second passage 13.

In yet another possible embodiment, the welding head 1 further includes a third channel 15, the third channel 15 being disposed at an end of the second channel 13 adjacent to the first channel 12, the third channel 15 being tapered, and the opening of the third channel 15 adjacent to the first channel 12 being larger than the opening of the third channel 15 adjacent to the second channel 13, such that the molten welding wire 300 can more smoothly flow from the first channel 12 to the second channel 13.

In order to ensure that the melted solder wire does not flow onto the PCB between the golden fingers, in the embodiment of the present application, the shape of the first contact surface 14 is adapted to the shape of the second contact surface 102. Illustratively, the first contact surface 14 should have the same shape as the second contact surface 102, so that the first contact surface 14 can better abut against the second contact surface 102, and at the same time, the first contact surface 14 should be capable of completely covering the second contact surface 102, so as to ensure that the melted welding wire 300 does not flow onto the second contact surface 102, and avoid causing poor insulation.

The shape of the welding head 1 is not limited herein, and in this embodiment, the welding head 1 is rectangular, so that an operator can conveniently clamp the welding head 1.

The material of the welding head 1 is not limited here, and in this embodiment, the welding head 1 is made of copper, which is low in cost, and in other embodiments, can be made of steel, which has a long service life.

The shape of the groove 11 is not limited, and in this embodiment, the cross section of the groove 11 is semicircular, so that the welding wire 300 can smoothly flow to the positions of the golden finger 101 and the wire end 201 after being melted, the welding quality is ensured, and the residue is reduced; in other embodiments, the cross section of the groove 11 may be rectangular, so as to reduce the processing difficulty of the groove 11, or the cross section of the groove 11 may be triangular or conical.

Further, the first channel 12 is perpendicular to the axis of the second channel 13, so that the melted welding wire 300 can flow into the second channel 13 more easily, and finally flows to the positions of the golden finger 101 and the wire head 201 through the groove 11.

Further, the first channel 12 is disposed at a side close to the groove 11, so that the welding wire 300 can quickly enter the groove 11 through the second channel 13 after melting, and the problem of welding quality reduction caused by cooling of the welding wire 300 in the flowing process is avoided. The distance between the first channel 12 and the groove 11 is not particularly limited in the embodiment of the present application, and preferably, the distance between the axis of the first channel and the bottom of the groove is less than or equal to 1cm.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. The utility model provides a soldering frock, its characterized in that, includes bonding tool (1), bonding tool (1) are provided with first passageway (12), a plurality of second passageway (13) and a plurality of recess (11), and welding wire (300) can wear to locate in first passageway (12), a plurality of recess (11) follow the length direction of first passageway (12) evenly spaced set up in one terminal surface of bonding tool (1), a plurality of second passageway (13) with a plurality of recess (11) one-to-one, just second passageway (13) intercommunication first passageway (12) with recess (11), adjacent terminal surface between recess (11) is first contact surface (14), the plate body surface between adjacent golden finger (101) is second contact surface (102), first contact surface (14) can with second contact surface (102) butt.

2. A soldering tool according to claim 1, wherein the axis of the first channel (12) is parallel to the end face of the soldering tip (1) and is arranged perpendicular to the axis of the second channel (13).

3. The soldering tool according to claim 1, wherein the first channel (12) and the second channel (13) are both cylindrical.

4. The soldering tool according to claim 2, further comprising a third channel (15), wherein the third channel (15) is disposed at an end of the second channel (13) close to the first channel (12), the third channel (15) is tapered, and the opening of the third channel (15) close to the first channel (12) is larger than the opening of the third channel (15) close to the second channel (13).

5. The soldering tool according to claim 1, wherein the first channel (12) is arranged at a side of the soldering tip (1) close to the recess (11).

6. The soldering tool according to claim 5, wherein the distance between the axis of the first channel (12) and the bottom of the groove (11) is less than or equal to 1cm.

7. The soldering tool according to claim 1, wherein the groove (11) is semicircular in cross section perpendicular to the length direction thereof.

8. The soldering tool according to claim 1, wherein the groove (11) is rectangular in cross section perpendicular to the length direction thereof.

9. The soldering tool according to claim 1, wherein the first contact surface (14) is adapted to the shape of the second contact surface (102).

10. A soldering tool according to any one of claims 1-9, wherein the soldering tip (1) is made of copper.