A multi-purpose welding piece

Abstract

The utility model relates to the field of welding technology, and discloses a multi-purpose welding sheet. The utility model includes a ceramic shell with an embedding opening, in which an electric heating plate is embedded and fixedly arranged, wherein the back of the electric heating plate is fixedly arranged with two electrode clips that pass through the ceramic shell upwards, and the electric heating plate can be quickly heated by overlapping the electrodes on the electrode clips, and a layer of combustion aid is solidified on the lower end surface of the electric heating plate. The utility model covers the device on the panel to be welded, and then clamps it on the two electrode clips with an electric clamp, so that the electric heating plate is quickly heated and then melts the solder resist and the prefabricated welding sheet, so that the prefabricated welding sheet is gradually accumulated at the welding position in a dripping shape, and then is formed after being solidified. The ceramic shell can limit the welding range and has a good shaping effect on the welding point.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a multi-purpose welding sheet. Background Art

[0002] Preformed solder sheets are a type of precision-molded solder that can be made into different shapes, sizes and surface morphologies as required. They are suitable for various product manufacturing processes with small tolerances and are widely used in circuit board assembly, connectors and terminal equipment, chip connection, power module substrate attachment, filter connectors and electronic component assembly. Preformed solder sheets are usually used in situations where there are special requirements for the shape and quality of the solder. They can be made into any size and shape according to customer needs. When soldering electronic components on circuit boards, the solder sheets will be liquefied by heat and the liquefied solder sheets will spread to the surrounding areas, which can easily affect the cleanliness of the circuit board and other solder joints. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in order to overcome the above problems, a multi-purpose welding sheet is provided, which solves the above problems.

[0004] The utility model solves the technical problem by adopting the following technical solutions:

[0005] A multi-purpose welding piece comprises a ceramic shell with an embedding opening, in which an electric heating plate is embedded and fixedly arranged, wherein two electrode clips which pass through the ceramic shell upward are fixedly arranged on the back of the electric heating plate, and the electric heating plate can be heated rapidly by overlapping the electrodes on the electrode clips, and a layer of combustion aid is solidified on the lower end surface of the electric heating plate, and a prefabricated welding piece is fixedly arranged on the lower end surface of the combustion aid for forming a liquid welding body after being melted by heat, and solidified after heat dissipation.

[0006] Preferably, the electric heating plate is a carbon fiber heating plate, which has good thermal conductivity and good flexibility.

[0007] Preferably, the electrode clip is arranged in the middle of the upper end surface of the ceramic shell, so that the heating speed of the electric heating plate can be more balanced during heating, which is convenient for the balanced melting of the prefabricated welding sheet.

[0008] Preferably, through-hole solder resist fume dissipation holes are arranged at intervals at the embedding opening, which discharge the fume of the flux after the prefabricated solder sheet and the flux are melted to avoid defects caused by the fume to the welding point.

[0009] Preferably, the prefabricated welding sheet has a conical structure, and the diameter of its bottom surface close to the welding position is smaller than the diameter of its top surface. In this way, after hot melting, the bottom surface of the prefabricated welding sheet is first deposited at the welding position and diffuses outward, which can effectively reduce the voids formed on the welding surface during traditional welding and effectively increase the welding contact surface.

[0010] Preferably, the ratio of the bottom diameter of the prefabricated welding sheet to its top diameter is not greater than one to three.

[0011] The advantages and positive effects of the utility model are:

[0012] The device is covered on the panel to be welded, and then clamped on the two electrode clips through the charged clamp, so that the electric heating plate quickly heats up and melts the solder resist and the prefabricated solder sheet, so that the prefabricated solder sheet is gradually accumulated at the welding position in a dripping state, and then formed after being cured. The ceramic shell can limit the welding range and has a good shaping effect on the welding point. The space in the belly of the ceramic shell squeezes out oxygen under the smoke generated after the flux melts, effectively reducing oxidation and improving the quality of the inside of the soldering point. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 yes Figure 1 Schematic diagram of the structure viewed from above. DETAILED DESCRIPTION

[0016] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0017] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0018] like Figure 1-2 As shown, a multi-purpose welding piece described in the utility model includes a ceramic shell 10 with an embedding opening 13, in which an electric heating plate 14 is embedded and fixedly arranged, wherein two electrode clips 12 which pass through the ceramic shell 10 upward are fixedly arranged on the back of the electric heating plate 14, and the electric heating plate 14 can be quickly heated by overlapping the electrodes on the electrode clips 12, and a layer of combustion aid is solidified on the lower end surface of the electric heating plate 14, and a prefabricated welding piece 15 is fixedly arranged on the lower end surface of the combustion aid for forming a liquid welding body after being melted by heat, and solidified after heat dissipation.

[0019] Preferably, the electric heating plate 14 is a carbon fiber heating plate, which has good thermal conductivity and good flexibility.

[0020] Preferably, the electrode clip 12 is disposed in the middle of the upper end surface of the ceramic shell 10 , so that the heating rate of the electric heating plate 14 can be more even during heating, which facilitates the even melting of the prefabricated welding sheet 15 .

[0021] Preferably, through-hole solder resist fume dissipation holes 11 are arranged at intervals at the embedding opening 13 , which discharge the fume of the flux after the prefabricated solder sheet 15 and the flux are melted to prevent it from causing defects to the soldering points.

[0022] Preferably, the prefabricated welding piece 15 has a conical structure, and the diameter of its bottom surface close to the welding position is smaller than the diameter of its top surface. In this way, after hot melting, the bottom surface of the prefabricated welding piece 15 is first deposited at the welding position and diffuses outward, which can effectively reduce the voids formed on the welding surface during traditional welding and effectively increase the welding contact surface.

[0023] Preferably, the ratio of the bottom diameter of the prefabricated welding sheet 15 to its top diameter is not greater than one to three.

[0024] During specific implementation, the device is covered on the panel to be welded, and then clamped on the two electrode clips 12 through a charged clamp, so that the electric heating plate 14 quickly heats up and melts the solder resist and the prefabricated solder sheet 15, so that the prefabricated solder sheet 15 is gradually accumulated at the welding position in a dripping state, and then formed after solidification. The ceramic shell 10 can limit the welding range and has a good shaping effect on the welding point. In addition, the space in the abdomen of the ceramic shell 10 squeezes out oxygen under the smoke generated after the flux melts, effectively reducing oxidation and improving the quality of the inside of the solder joint.

[0025] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementation manner. Any other implementation manner derived by those skilled in the art based on the technical solution of the present invention also falls within the scope of protection of the present invention.

Claims

1. A multi-purpose soldering sheet, comprising a ceramic shell (10) with an embedding opening (13), characterized in that: An electric heating plate (14) is fixedly installed in the ceramic shell (10), wherein two electrode clips (12) are fixedly installed on the back of the electric heating plate (14) and extend upward out of the ceramic shell (10), and the electric heating plate (14) can be quickly heated by overlapping the electrodes on the electrode clips (12), and a layer of combustion aid is solidified on the lower end surface of the electric heating plate (14), and a prefabricated welding sheet (15) is fixedly installed on the lower end surface of the combustion aid for forming a liquid welding body after being melted by heat, and solidified after heat dissipation.

2. A multi-purpose welding sheet according to claim 1, characterized in that: The electric heating plate (14) is a carbon fiber heating plate, which has good thermal conductivity and good flexibility.

3. A multi-purpose welding sheet according to claim 2, characterized in that: The electrode clip (12) is arranged in the middle of the upper end surface of the ceramic shell (10), so that the heating speed of the electric heating plate (14) can be relatively balanced during heating, thereby facilitating balanced melting of the prefabricated welding sheet (15).

4. The multi-purpose welding sheet according to claim 3, characterized in that: Through-hole solder resist fume dissipation holes (11) are arranged at intervals at the embedding opening (13) to discharge the fume of the solder flux after the prefabricated solder sheet (15) and the solder flux are melted to prevent the fume from causing defects in the soldering points.

5. The multi-purpose welding sheet according to claim 4, characterized in that: The prefabricated welding sheet (15) has a conical structure, and the diameter of its bottom surface close to the welding position is smaller than the diameter of its top surface. Thus, after hot melting, the bottom surface of the prefabricated welding sheet (15) is first deposited at the welding position and diffuses outwards, which can effectively reduce the voids formed on the welding surface during the traditional welding process and effectively increase the welding contact surface.

6. The multi-purpose welding sheet according to claim 5, characterized in that: The ratio of the bottom diameter of the prefabricated welding sheet (15) to its top diameter is no greater than one to three.

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