A positioning device for battery welding and a battery welding method

Abstract

The application provides a positioning device for battery welding and a battery welding method. The positioning device comprises a cover and a base, and the cover abuts against the base. The cover comprises a plurality of positioning cover portions and a first frame body, and the positioning cover portions are located in the first frame body. The positioning cover portion comprises a positioning frame, a cover plate and a first positioning portion, the cover plate and the first positioning portion are located in the positioning frame, the cover plate and the first positioning portion are oppositely arranged, the cover plate comprises a second positioning portion, and the second positioning portion is convex to the first positioning portion relative to the plate portion of the cover plate. The base comprises mirror-symmetrical positioning strips, a plurality of uniformly arranged positioning protrusions are arranged between the two positioning strips, and the accommodating hole of the base extends from the end face of the base to the base. The plate portion, the second positioning portion, the positioning strips and the positioning protrusions position the wires, the positioning strips and the first positioning portion position the PCB, manual positioning of the wires and the PCB is cancelled, the positioning stability of the wires and the PCB is improved, tin tips are avoided, and the quality of the battery is ensured.

Description

Technical Field

[0001] This invention belongs to the field of battery technology, specifically relating to a positioning device and a battery welding method for battery welding. Background Technology

[0002] Currently, batteries typically consist of wires and PCBs that are soldered together. During soldering, production line workers use one hand to position the wires and PCBs while using the other to control the soldering equipment. However, manual positioning of the wires and PCBs can easily lead to misalignment, compromising positioning stability, reducing product quality and production efficiency, and increasing unnecessary production costs. Furthermore, misalignment during soldering can cause solder spikes to form, which can puncture the battery cells after assembly, leading to problems such as battery fires and leaks, resulting in unstable battery quality. Summary of the Invention

[0003] The first objective of this invention is to provide a positioning device for battery welding that improves positioning stability.

[0004] A second objective of this invention is to provide a battery welding method that improves positioning stability.

[0005] To achieve the aforementioned first objective, the positioning device for battery welding provided by the present invention includes a cover and a base, with the cover abutting against the base; the cover includes multiple positioning cover portions and a first frame, with the positioning cover portions located within the first frame; each positioning cover portion includes a positioning frame, a cover plate, and a first positioning portion, with both the cover plate and the first positioning portion located within the positioning frame, the cover plate and the first positioning portion being arranged opposite to each other, the cover plate including a second positioning portion, the second positioning portion protruding towards the first positioning portion relative to the plate portion of the cover plate; the base includes mirror-symmetrical positioning strips, with multiple evenly arranged positioning protrusions between the two positioning strips, and the receiving hole of the base extending from the end face of the base into the base.

[0006] As can be seen from the above scheme, the board part, the second positioning part, the positioning strip and the positioning protrusion position the conductor, and the positioning strip and the first positioning part position the PCB board. This eliminates the need for manual positioning of the conductor and the PCB board, improves the positioning stability of the conductor and the PCB board, avoids solder spikes, and ensures battery quality.

[0007] To achieve the second objective mentioned above, the battery welding method provided by the present invention applies the positioning device described above. The battery welding method also employs a hot-press welding device, with a welding temperature of 300-360℃, a slow rise time of 0.5-1s, a heating time of 1.5-2.2s, and a cooling time of 1.5-3.5s.

[0008] As can be seen from the above scheme, the board part, the second positioning part, the positioning strip and the positioning protrusion position the conductor, and the positioning strip and the first positioning part position the PCB board. This eliminates the need for manual positioning of the conductor and the PCB board, improves the positioning stability of the conductor and the PCB board, avoids solder spikes, and ensures battery quality. Attached Figure Description

[0009] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0010] Figure 1 This is a structural diagram of an embodiment of a positioning device for battery welding according to the present invention.

[0011] Figure 2 This is a structural diagram of the base of an embodiment of the positioning device described in this invention.

[0012] Figure 3 yes Figure 1 A magnified view of the local structure at point A shown. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0014] See Figures 1 to 3 The positioning device 100 for battery welding provided in this embodiment includes a cover 1 and a base 2. The cover 1 abuts against the base 2, and both the cover 1 and the base 2 are integrally formed parts. The cover 1 includes multiple positioning cover portions 3 and a first frame 5, with the positioning cover portions 3 located inside the first frame 5. The positioning cover portion 3 includes a positioning frame 6, a cover plate 7, and a first positioning portion 8. The cover plate 7 and the first positioning portion 8 are both located inside the positioning frame 6 and are arranged opposite to each other. The cover plate 7 includes a second positioning portion 9, which protrudes from the plate portion of the cover plate 7 toward the first positioning portion 8. The base 2 includes mirror-symmetrical positioning strips 10, with multiple evenly arranged positioning protrusions 13 between the two positioning strips 10. The receiving hole 15 of the base 2 extends from the end face of the base 2 into the base 2.

[0015] The cover 1 includes a through hole 16, the axis of which coincides with the axis of the receiving hole 15, and the through hole 16 is far away from the first positioning part 8 relative to the second positioning part 9.

[0016] Each positioning bar 10 includes a first bar portion 11 and a second bar portion 12 connected to each other. A positioning protrusion 13 is located between the two first bar portions 11. A second positioning portion 9 abuts against the positioning protrusion 13. The first bar portion 11 and the second bar portion 12 are parallel to each other. A first positioning portion 8 is located between the two second bar portions 12. A receiving hole 15 is away from the second bar portion 12 relative to the first bar portion 11.

[0017] There are six positioning covers 3, and each positioning cover is provided with two positioning strips 10 and four positioning protrusions 13.

[0018] The battery welding method using the positioning device 100 provided by the present invention is as follows:

[0019] The battery welding method provided by this invention uses the aforementioned positioning device 100. The battery welding method also employs a hot press welding device. The positioning device 100 is detachably assembled into the hot press welding device. The positioning device 100 can be threaded or snapped into the hot press welding device. The welding temperature is 300-360℃, the slow rise time is 0.5-1s, the heating time is 1.5-2.2s, the cooling time is 1.5-3.5s, and the water temperature is 22-26℃. The hot press welding device can be the LHP-300A soldering machine from Zhuhai Weituo Lingtai Technology Co., Ltd.

[0020] See Figures 1 to 3 The production line worker places the cover 1 on the base 2. The PCB board 18 is positioned inside the two positioning strips 10. The first positioning part 8 and the base 2 position the PCB board 18. A wire 19 is positioned between adjacent positioning protrusions 13. A wire 19 is also positioned between each first strip 11 and the adjacent positioning protrusion 13. The second positioning part 9 abuts against the positioning protrusion 13 to position the wire 19. The board, the second positioning part 9, the positioning strips 10 and the positioning protrusions 13 position the wire. The positioning strips 10 and the first positioning part 8 position the PCB board. This eliminates the need for manual positioning of the wire and the PCB board, improves the positioning stability of the wire and the PCB board, avoids solder spikes, and ensures battery quality.

[0021] Finally, it should be emphasized that the present invention is not limited to the above-described embodiments. The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A positioning device for battery welding, characterized in that: The positioning device includes a cover and a base, with the cover abutting against the base; The cover includes multiple positioning cover portions and a first frame, wherein the positioning cover portions are located within the first frame. The positioning cover includes a positioning frame, a cover plate, and a first positioning part. The cover plate and the first positioning part are both located within the positioning frame. The cover plate and the first positioning part are arranged opposite to each other. The cover plate includes a second positioning part, which protrudes from the plate portion of the cover plate toward the first positioning part. The base includes mirror-symmetrical positioning strips, and a plurality of evenly arranged positioning protrusions are provided between the two positioning strips. The receiving hole of the base extends from the end face of the base into the base. The second positioning part abuts against the positioning protrusion to position the wire; The positioning strip includes a first strip portion, and a guide wire is also positioned between each first strip portion and the adjacent positioning protrusion; The cover includes a through hole, the axis of which coincides with the axis of the receiving hole; Each of the positioning strips includes a first strip portion and a second strip portion that are connected to each other, and the positioning protrusion is located between the two first strip portions; The first positioning part is located between the two second parts; The second positioning part abuts against the positioning protrusion; The PCB board is positioned inside the two positioning strips. The first positioning part and the base position the PCB board, and the positioning strip and the first positioning part position the PCB board. The cover plate, the second positioning part, the positioning strip and the positioning protrusion position the conductor.

2. The positioning device according to claim 1, characterized in that: The first section and the second section are parallel to each other.

3. A positioning device according to claim 2, characterized in that: The receiving hole is located away from the second strip relative to the first strip.

4. A positioning device according to claim 3, characterized in that: The through hole is located away from the first positioning part relative to the second positioning part.

5. A positioning device according to any one of claims 1 to 4, characterized in that: The number of positioning covers is six.

6. A battery welding method using a positioning device as described in any one of claims 1 to 5, characterized in that: The battery welding method also employs a hot-press welding device, and the positioning device is detachably assembled into the hot-press welding device. The welding temperature is 300-360℃, the slow rise time is 0.5-1s, the heating time is 1.5-2.2s, and the cooling time is 1.5-3.5s.

Images