Solder strip pressing device

Abstract

The utility model relates to the field of battery assembly production, in particular to a solder strip pressing device which comprises a plate body and a plurality of elastic units, each elastic unit comprises a needle body and at least one elastic connecting piece, each needle body is connected to the plate body in a springing mode through the at least one elastic connecting piece, the needle bodies protrude out of the first side of the plate body, and the first side of the plate body is provided with a plurality of elastic connecting pieces. The plate body, the elastic connecting piece and the needle body are of an integrally-formed structure. When the welding strip pressing device is used for pressing the welding strip, the needle body is elastically pressed on the welding strip, the pressing effect can be ensured, the welding strip and a battery piece can be prevented from being damaged by pressing, the plate body, the elastic connecting piece and the needle body in the welding strip pressing device are of an integrally-formed structure, in other words, the whole welding strip pressing device can be directly machined through stamping, 3D printing and the like, and the welding strip pressing device is simple in structure and convenient to use. Assembling is not needed, and time and labor are saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the battery assembly production field, concretely speaking, a kind of welding strip pressing device. BACKGROUND

[0002] In the battery assembly production process, welding strip needs to be pulled to battery piece to be stacked and connected to form battery string, and in the process of stacking and conveying welding strip and battery piece, welding strip needs to be compressed and positioned by the pressing needle in welding strip pressing device to avoid deviation between welding strip and battery piece in conveying process.

[0003] The existing welding strip pressing device includes frame and multiple rows of pressing needles arranged on the frame, wherein the pressing needle is assembled by needle body, spring and other components, and the pressing needle itself is assembled relatively troublesome, in addition, the pressing needle needs to be assembled into the mounting hole of the frame one by one, and since the number of pressing needles is large, it is very time-consuming to assemble. UTILITY MODEL CONTENTS

[0004] In view of the above technical problems, the utility model provides a kind of welding strip pressing device, and its detailed technical scheme is as follows:

[0005] A kind of welding strip pressing device, welding strip pressing device includes plate body and multiple elastic units, elastic unit includes needle body and at least one elastic connecting piece, each needle body is elastically connected on plate body by at least one elastic connecting piece, and needle body protrudes on the first side of plate body, and plate body and elastic connecting piece, needle body are integrally formed structure.

[0006] When the welding strip pressing device is used to press welding strip, the needle body is elastically pressed on the welding strip, which can ensure the compression effect and prevent the welding strip and battery piece from being damaged, and the plate body and elastic connecting piece, needle body in the welding strip pressing device are integrally formed structure, i.e. the whole welding strip pressing device can be directly processed by stamping, 3D printing, etc., without assembly, saving time and effort.

[0007] In some embodiments, the plate body and the elastic connecting piece and the needle body are integrally stamped parts.

[0008] That is, the plate body and the elastic connecting piece and the needle body of the present application are integrally formed parts processed by stamping process, which is simple in processing technology and low in cost.

[0009] In some embodiments, a plurality of accommodating holes are formed in the plate body, the accommodating holes and the elastic units correspond one by one, the elastic units are arranged in the corresponding accommodating holes, the elastic connecting piece is a curved strip-shaped rod, the inner wall of the accommodating hole and the outer wall of the needle body in the corresponding elastic unit are arranged at a distance, the first end of the elastic connecting piece is connected with the inner wall of the accommodating hole, the second end of the elastic connecting piece is connected with the outer wall of the needle body, the elastic connecting piece is at least two, and the elastic connecting pieces are arranged at intervals along the periphery of the needle body.

[0010] The needle body is installed in the plate body through the plurality of curved elastic connecting pieces, so that the needle body is elastically movable, the structure is simple, and stamping is convenient.

[0011] In some embodiments, the needle body is a cylinder, the first end of the needle body protrudes into the corresponding accommodating hole, the outer wall of the first end of the needle body is connected through the elastic connecting piece and the accommodating hole, and the second end of the needle body protrudes out of the accommodating hole.

[0012] In the present application, the second end of the needle body is used to press the welding strip and the battery piece, the second end of the needle body protrudes out of the accommodating hole, and the second end is convenient for pressing the welding strip.

[0013] In some embodiments, the needle body is a hollow cylinder, the outer wall of the second end of the needle body is bent towards the inner cavity of the needle body to form a conical cone, a through hole is arranged at the top of the cone, the through hole is in communication with the inner cavity of the needle body, and the outer wall of the second end of the needle body and the inner wall of the cone are smoothly connected.

[0014] In the present application, when the welding strip is pressed, a glue point is usually arranged on the upper surface of the welding strip or between the welding strip and the battery piece, when the needle body is pressed on the welding strip, the inner cavity of the needle body is used to expose the glue point, so that light used for curing the glue point can irradiate on the glue point through the inner cavity of the needle body, and the glue point is cured to bond the welding strip and the battery piece. In the present application, the outer wall of the second end of the needle body is bent towards the inner cavity of the needle body to form a conical cone, so that burrs are not generated at the second end of the needle body when the stamping process is used for processing, the second end of the needle body is a smooth surface, and the second end of the needle body will not damage the welding strip when the second end of the needle body is pressed on the welding strip.

[0015] In some embodiments, the elastic units are arranged in a matrix on the plate body.

[0016] In the present application, the elastic units are arranged in a matrix, and each row of elastic units is used to press a welding strip.

[0017] In some embodiments, a plurality of avoiding holes are arranged on the plate body.

[0018] In the present application, the avoiding holes are also used for the light used for curing the glue point to pass through.

[0019] In some embodiments, the edge of the avoiding hole is folded towards the second side of the plate body to form a flange.

[0020] In the present application, the flange plays a role of a reinforcing rib, and deformation of the plate body during use is avoided.

[0021] In some embodiments, the welding strip pressing device further comprises a counterweight, and the counterweight is arranged on the second side of the plate body.

[0022] In the present application, the counterweight plays a role of counterweight for the plate body, and it is ensured that the welding strip pressing device reliably presses the welding strip on the battery piece.

[0023] In some embodiments, at least one buffer pad is arranged at each end of the first side plate surface of the plate body, and the region where all the elastic units are arranged is arranged between the two buffer pads.

[0024] In actual use, the battery piece and the solder strip are usually placed on a conveying belt, and when the solder strip is pressed by the needle body in the solder strip pressing device, the two ends of the plate body are placed on the conveying belt through the buffer pads, and the buffer pads play a buffering role when the solder strip pressing device is released onto the conveying belt. By replacing buffer pads of different thicknesses, the pressing force of the solder strip pressing device on the solder strip can be adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural view of the solder strip pressing device of the present application;

[0026] Figure 2 is Figure 1 is an enlarged view of part A in FIG. 1;

[0027] Figure 3 is a structural view of the solder strip pressing device of the present application from another angle;

[0028] Figure 4 is Figure 3 is an enlarged view of part B in FIG. 1.

[0029] Figures 1 to 4 includes:

[0030] 10 - plate body; 11 - accommodating hole; 12 - avoiding hole; 13 - flange; 20 - elastic unit; 21 - needle body; 211 - cone body; 212 - through hole; 22 - elastic connecting piece; 30 - counterweight; 40 - buffer pad. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0032] As Figures 1-4 shown, the present application discloses a solder strip pressing device, wherein the solder strip pressing device comprises a plate body 10 and a plurality of elastic units 20, the elastic unit 20 comprises a needle body 21 and at least one elastic connecting piece 22, each needle body 21 is elastically connected to the plate body 10 through at least one elastic connecting piece 22, and the needle body 21 protrudes from the first side of the plate body 10, and the plate body 10, the elastic connecting piece 22 and the needle body 21 are integrally formed.

[0033] When the solder strip pressing device is used to press the solder strip, the needle body 21 is elastically pressed on the solder strip, which can ensure the pressing effect and prevent damage to the solder strip and the battery piece. The plate body 10, the elastic connecting piece 22 and the needle body 21 are integrally formed, that is, the entire solder strip pressing device can be directly processed by stamping, 3D printing and the like, without assembly, saving time and effort.

[0034] Optionally, the plate body 10, the elastic connecting piece 22 and the needle body 21 are integrally stamped parts.

[0035] That is, the plate body 10, the elastic connecting piece 22 and the needle body 21 are integrally formed parts processed by stamping, and the stamping process is simple and has low manufacturing cost.

[0036] Optionally, as shown in Figure 2 The plate body 10 has a plurality of accommodating holes 11, the accommodating holes 11 and the elastic units 20 correspond one by one, the elastic units 20 are arranged in the corresponding accommodating holes 11, the elastic connecting piece 22 is a curved strip-shaped rod, the inner wall of the accommodating hole 11 and the outer wall of the needle body 21 in the corresponding elastic unit 20 are arranged at a distance, the first end of the elastic connecting piece 22 is connected to the inner wall of the accommodating hole 11, the second end of the elastic connecting piece 22 is connected to the outer wall of the needle body 21, the elastic connecting piece 22 is at least two, and the elastic connecting pieces 22 are arranged at intervals along the periphery of the needle body 21.

[0037] Figure 2 In the embodiment, the elastic connecting piece 22 is a strip-shaped rod approximately in S-shaped bending, and the actual shape of the elastic connecting piece 22 is not limited thereto. As long as the elastic connecting piece 22 itself can be deformed to a certain extent, the needle body 21 can be installed in the plate body 10 through the plurality of curved elastic connecting pieces 22, so that the needle body 21 can be elastically moved, the structure is simple, and stamping is convenient. When designing, the shape and thickness of the elastic connecting piece 22 are adjusted, so that the elastic connecting piece 22 has different elasticity to adjust the pressing force of the needle body 21 on the solder strip. The number of the elastic connecting pieces 22 can be designed to be two, three, four or the like, Figure 2 In the embodiment, the elastic connecting piece 22 is four, and the four elastic connecting pieces 22 are arranged at intervals along the periphery of the needle body 21.

[0038] Optionally, the needle body 21 is a cylinder, the first end of the needle body 21 protrudes into the corresponding accommodating hole 11, the outer wall of the first end of the needle body 21 is connected to the accommodating hole 11 through the elastic connecting piece 22, and the second end of the needle body 21 protrudes out of the accommodating hole 11.

[0039] The second end of the needle body 21 is used for pressing the welding strip and the battery piece, the second end of the needle body 21 overhangs out of the accommodating hole 11, and the second end of the needle body 21 is convenient for pressing the welding strip. The elastic rebound of the accommodating hole 11 to the needle body 21 also plays a role in avoiding, so that the needle body 21 is not hindered when rebounding in the length direction of the needle body 21.

[0040] Optionally, the needle body 21 is a hollow cylinder, the outer wall around the second end of the needle body 21 is bent to form a conical cone body 211 in the inner cavity of the needle body 21, and the top of the cone body 211 is provided with a through hole 212, and the through hole 212 and the inner cavity of the needle body 21 are communicated, and the outer wall of the second end of the needle body 21 and the inner wall of the cone body 211 are smoothly transitioned.

[0041] When the welding strip is pressed, the upper surface of the welding strip or the welding strip and the battery piece are usually provided with a glue point, when the needle body 21 is pressed on the welding strip, the inner cavity of the needle body 21 is used to expose the glue point, so that the light used for curing the glue point can irradiate on the glue point through the inner cavity of the needle body 21, and the glue point is cured to bond the welding strip and the battery piece. As shown in the figure, the outer wall around the second end of the needle body 21 is bent to form a conical cone body 211 in the inner cavity of the needle body 21, so that burrs that may be generated by the stamping process can only appear at the through hole 212, and the second end of the needle body 21 will not generate burrs. The second end of the needle body 21 is a smooth surface, and when the second end of the needle body 21 is pressed on the welding strip, the welding strip will not be pressed and damaged due to the existence of burrs. Figure 2

[0042] Optionally, as shown in the figure, the elastic units 20 are arranged in a matrix on the plate body 10. Figure 1

[0043] In the application, the elastic units 20 are arranged in a matrix, the needle body 21 in each row of elastic units 20 is used for pressing a welding strip, and the number of rows of elastic units 20 is consistent with the number of welding strips to be pressed by a welding strip pressing device.

[0044] Optionally, a plurality of avoiding holes 12 are formed on the plate body 10. The avoiding hole 12 in the application is also used for the light for curing the glue point to pass through. As shown in the figure, a plurality of avoiding holes 12 are formed between the two adjacent rows of elastic units 20. The avoiding hole 12 can be a round hole, a strip-shaped hole, a special-shaped hole, etc., and the shape of the avoiding hole 12 is not limited. Figure 1

[0045] Optionally, the edge of the avoiding hole 12 is folded to form a flange 13 towards the second side of the plate body 10. The flange 13 plays a role of a reinforcing rib, enhances the strength of the plate body 10, and avoids deformation of the plate body 10 in the process of pressing the welding strip, carrying, etc.

[0046] ​​​Optionally, the solder strip pressing device further comprises a counterweight 30 arranged on the second side of the plate body 10. In the present application, the counterweight 30 plays a counterweight role for the plate body 10, so as to ensure that the solder strip pressing device reliably presses the solder strip on the battery sheet.

[0047] Optionally, at least one buffer pad 40 is arranged at each end of the first side of the plate body 10, and the region where all the elastic units 20 are arranged is arranged between the two buffer pads 40.

[0048] In specific use, the battery sheet and the solder strip are usually placed on a conveying belt, and when the solder strip is pressed by the needle body 21 in the solder strip pressing device, the two ends of the plate body 10 are placed on the conveying belt through the buffer pads 40, and when the solder strip pressing device is released onto the conveying belt, the buffer pads 40 are in contact with the conveying belt, and the buffer pads 40 play a buffering role. By replacing buffer pads of different thicknesses, the pressing force of the solder strip pressing device on the solder strip can be adjusted.

[0049] The above has described the present application in sufficient detail and with certain particularity. It should be understood by those skilled in the art that the description in the embodiments is merely exemplary, and all changes made without departing from the true spirit and scope of the present application should belong to the protection scope of the present application. The scope of protection claimed by the present application is defined by the claims, rather than the above description in the embodiments.

Claims

1. A solder strip pressing device characterized by: The solder strip pressing device comprises a plate body and a plurality of elastic units, each of the elastic units comprises a needle body and at least one elastic connecting piece, each of the needle bodies is elastically connected to the plate body through the at least one elastic connecting piece, and the needle bodies protrude from a first side of the plate body, the plate body, the elastic connecting pieces and the needle bodies are integrally formed.

2. The solder strip pressing apparatus of claim 1, wherein: The plate body, the elastic connecting pieces and the needle bodies are integrally formed by stamping.

3. The solder strip pressing apparatus of claim 2, wherein: A plurality of accommodating holes are formed in the plate body, the accommodating holes and the elastic units correspond to each other, the elastic units are arranged in the corresponding accommodating holes, the elastic connecting pieces are curved strip-shaped rods, the inner wall of the accommodating hole and the outer wall of the needle body in the corresponding elastic unit are arranged at a distance, the first end of the elastic connecting piece is connected to the inner wall of the accommodating hole, the second end of the elastic connecting piece is connected to the outer wall of the needle body, there are at least two elastic connecting pieces, and the elastic connecting pieces are arranged at intervals around the needle body.

4. The solder strip pressing apparatus of claim 3, wherein: The needle body is a cylinder, the first end of the needle body protrudes into the corresponding accommodating hole, the outer wall of the first end of the needle body is connected to the accommodating hole through the elastic connecting piece, and the second end of the needle body protrudes out of the accommodating hole.

5. The solder strip pressing apparatus of claim 4, wherein: The needle body is a hollow cylinder, the outer wall of the second end of the needle body is bent to form a conical cone body in the inner cavity of the needle body, the top of the cone body is provided with a through hole, the through hole is communicated with the inner cavity of the needle body, and the outer wall of the second end of the needle body and the inner wall of the cone body are smoothly connected.

6. The solder strip pressing apparatus of claim 1, wherein: The elastic units are arranged in a matrix on the plate body.

7. The solder strip pressing apparatus of claim 1, wherein: A plurality of avoiding holes are formed in the plate body.

8. The solder strip pressing apparatus of claim 7, wherein: The edges of the avoiding holes are folded to form flanges toward the second side of the plate body.

9. The solder strip press device of claim 1, wherein: The solder strip pressing device further comprises a counterweight, and the counterweight is arranged on the second side of the plate body.

10. The solder strip pressing apparatus of claim 1, wherein: At least one buffer pad is arranged at each end of the plate surface on the first side of the plate body, and the regions where all the elastic units are arranged are between the buffer pads at the two ends.

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