Net pressing mechanism of ceramic frame

Abstract

The utility model discloses a net pressing mechanism of a ceramic frame, which comprises a frame main body formed by connecting two long edges and two short edges end to end; the pressing needle assembly is connected to the frame main body and is suitable for tightly pressing a welding strip and a battery piece to be processed; the net pressing mechanism comprises a frame body and a plurality of needle pressing assemblies, the two ends of the needle pressing assemblies are connected to the two short edges of the frame body in parallel, the net pressing mechanism further comprises reinforcing rib parts, and the reinforcing rib parts are connected with the two adjacent needle pressing assemblies, the needle pressing assemblies close to the long edges and the long edges. The long edges are made of ceramic materials, so that the service life of the whole pressing net is prolonged through the characteristics of high strength and high abrasion resistance of the ceramic materials, the heat dissipation performance of the ceramic materials is good, and heat dissipation of the pressing net in the using process and after using is facilitated.

Description

Technical Field

[0001] This application belongs to the technical field of battery processing, and particularly relates to a wire pressing mechanism for a ceramic frame. Background Art

[0002] The series welding of battery cells is an important processing step. Usually, a manipulator is used to place the battery cells on a welding platform, and then the welding platform is moved to the position of placing the welding tape and pressing the wire mesh. The welding tape is cut and fixed under the pressing pins of the wire pressing mesh as required and then moved above the battery cells. The welding tape is brought into contact with and fixed to the solder paste at the PAD points of the battery cells through the pressing pins on the wire pressing mesh. The welding platform is moved to the welding position, and the solder paste is melted through a heating lamp box so that the welding tape is welded to the PAD points of the battery cells. After welding is completed, the wire pressing mesh is removed to obtain a battery string.

[0003] In the prior art, the main frame body material of the wire pressing mesh is 6061 material. This material has limited strength and relatively low surface hardness. Since the main force is dispersed on the main frame when the wire pressing mesh presses against the battery cells, there is a risk of mechanical fatigue of the main frame after long-term use. And when the wire pressing mesh is offset due to certain reasons, the main frame (especially the long side) will rub against other components of the equipment. Also, because the wear resistance of 6061 is poor, it will be worn and damaged over time, greatly reducing the service life of the wire pressing mesh.

[0004] Therefore, it is necessary to improve the prior art to overcome the defects in the prior art. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is to provide a wire pressing mechanism for a ceramic frame with high strength and wear resistance.

[0006] To solve the above technical problem, this utility model provides a wire pressing mechanism for a ceramic frame, including:

[0007] A frame body, which is formed by connecting two long sides and two short sides end to end;

[0008] A pressing pin assembly, connected to the frame body and adapted to press the welding tape and battery cells to be processed;

[0009] Wherein, several groups of the pressing pin assemblies are provided, and the two ends of several groups of the pressing pin assemblies are connected in parallel to the two short sides of the frame body. The wire pressing mechanism further includes a reinforcing rib component, which connects two adjacent groups of the pressing pin assemblies and the pressing pin assembly close to the long side and the long side. The material of the long side is a ceramic material.

[0010] Further, the needle pressing assembly includes a connecting rod with two ends connected to the short side and a needle pressing component arranged on the connecting rod, and the needle pressing component can move relative to the connecting rod in the radial direction.

[0011] Further, first mounting holes are evenly spaced on the connecting rod, and the needle pressing component is mounted in the first mounting holes.

[0012] Further, the first mounting hole includes a first through hole and a second through hole connected in the radial direction, and the aperture of the first through hole is smaller than that of the second through hole.

[0013] Further, the needle pressing component includes a needle pressing piece and a limiting ring sleeved and connected on the needle pressing piece;

[0014] The needle pressing piece includes a needle tip and a needle rod connected to the needle tip. The needle rod includes a first rod body connected to the needle tip and a second rod body connected to the first rod body. The limiting ring is sleeved on the second rod body after the second rod body passes through the first mounting hole. The diameter of the needle tip is larger than the aperture of the first through hole. The diameter of the first rod body is equal to the aperture of the first through hole. The diameter of the second rod body is equal to the aperture of the second through hole. The length of the needle rod is greater than the length of the first mounting hole. The diameter of the limiting ring is larger than the diameter of the second through hole.

[0015] Further, a first step portion is formed between the first through hole and the second through hole, a second step portion is formed between the first rod body and the second rod body, and the needle pressing component further includes an elastic member, and two ends of the elastic member respectively abut against the first step portion and the second step portion.

[0016] Further, the elastic member is a spring.

[0017] Further, one end of the second rod body protruding out of the first mounting hole is recessed inward to form an annular groove, and the limiting ring is snap-fitted and mounted in the annular groove.

[0018] Further, the limiting ring is a copper sleeve.

[0019] Further, second mounting holes with the same structure as the first mounting holes are evenly spaced on the long side, and needle pressing components are mounted in the second mounting holes so that the two long sides serve as two needle pressing assemblies.

[0020] The technical solution provided by the present utility model has the following advantages: The screen pressing mechanism of the ceramic frame of the present utility model is provided with a frame body formed by connecting two long sides and two short sides end to end, and a pressing needle assembly connected to the frame body and suitable for pressing the solder tape and battery cell to be processed. Among them, several groups of pressing needle assemblies are provided, and both ends of several groups of pressing needle assemblies are connected in parallel to the two short sides of the frame body. The screen pressing mechanism further includes a reinforcing rib component, and the reinforcing rib component connects two adjacent pressing needle assemblies and the pressing needle assembly close to the long side and the long side, and the material of the long side is ceramic material, so as to extend the service life of the entire screen pressing through the characteristics of high strength and high wear resistance of the ceramic material, and the heat dissipation of the ceramic is also better, which is convenient for the heat dissipation of the screen pressing during and after use. Brief Description of the Drawings

[0021] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of the screen pressing mechanism of the ceramic frame of the present utility model;

[0023] Figure 2 For Figure 1 the sectional structural diagram of. Detailed Embodiments

[0024] The following will clearly and completely describe the technical solutions of the present utility model in conjunction with the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments. It should be noted that, without conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other.

[0025] It should be noted that the terms "first", "second", etc. in the description and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence.

[0026] In the present utility model, unless otherwise stated, the orientation terms such as "upper", "lower", "top", "bottom" are usually in the direction shown in the drawings, or in the vertical, perpendicular or gravitational direction of the component itself; similarly, for the convenience of understanding and description, "inner" and "outer" refer to the inner and outer of the contour of each component itself, but the above orientation terms do not limit the present utility model.

[0027] Please refer to Figures 1 to 2 As shown in the figure, a screen pressing mechanism for a ceramic frame includes a frame body 1 and a pressing needle assembly 2 connected to the frame body 1. In this embodiment, the frame body 1 is formed by connecting two long sides 11 and two short sides 12 end to end in a staggered manner, that is, the entire frame body 1 is rectangular. After the pressing needle assembly 2 is connected to the frame body 1, it is suitable for pressing the solder tape and the battery cell to be processed for processing.

[0028] Among them, several groups of pressing needle assemblies 2 are provided. The two ends of several groups of pressing needle assemblies 2 are connected in parallel to the two short sides 12 of the frame body 1. The screen pressing mechanism further includes a reinforcing rib component 3. The reinforcing rib component 3 connects two adjacent pressing needle assemblies 2, the pressing needle assembly 2 close to the long side 11 and the long side 11. And the material of the long side 11 is ceramic material, so as to extend the service life of the entire screen pressing through the characteristics of high strength and high wear resistance of the ceramic material, and the heat dissipation of the ceramic is also better, which is convenient for the heat dissipation of the screen pressing during and after use.

[0029] Specifically, in this embodiment, the middle part of the long side 11 is made of ceramic material, and the parts at both ends connected to the short side 12 are 6061, which is the same material as the short side 12. This not only ensures the strength and wear resistance of the long side 11, but also makes the connection between the long side 11 and the short side 12 more stable and firm due to the same material, ensuring the overall stability of the screen pressing.

[0030] In other embodiments, the materials of the long side 11 and the short side 12 of the screen pressing can also be selected according to the actual situation. For example, the long side 11 and the short side 12 can also be made of ceramic integrally, as long as the actual requirements can be met, and no specific limitations are made here.

[0031] As described above, the pressing needle assembly 2 includes a connecting rod 21 with both ends connected to the short side 12 and a pressing needle component 22 arranged on the connecting rod 21. The pressing needle component 22 can move relative to the connecting rod 21 in the radial direction, so as to realize the pressing effect on the solder tape and the battery cell to be welded and processed.

[0032] Specifically, first mounting holes 211 are evenly spaced on the connecting rod 21, and the needle pressing member 22 is mounted in the first mounting holes 211. The first mounting hole 211 includes a first through hole 2111 and a second through hole 2112 connected in the radial direction. The aperture of the first through hole 2111 is smaller than that of the second through hole 2112. The needle pressing member 22 includes a needle pressing piece 221 and a limiting ring 222 sleeved and connected to the needle. The needle pressing piece 221 includes a needle head 2211 and a needle rod 2212 connected to the needle head 2211. The needle rod 2212 includes a first rod body 2213 connected to the needle head 2211 and a second rod body 2214 connected to the first rod body 2213. The limiting ring 222 is sleeved on the second rod body 2214 after the second rod body 2214 passes through the first mounting hole 211. The diameter of the needle head 2211 is larger than the aperture of the first through hole 2111. The diameter of the first rod body 2213 is equal to the aperture of the first through hole 2111. The diameter of the second rod body 2214 is equal to the aperture of the second through hole 2112. The diameter of the limiting ring 222 is larger than the diameter of the second through hole 2112, so that one end of the needle head 2211 can be clamped outside the first through hole 2111, the limiting ring 222 can be clamped outside the second through hole 2112, and the length of the needle rod 2212 is greater than the length of the first mounting hole 211, thereby limiting the needle pressing member 22 on the first mounting hole 211. When it is necessary to press the welding tape and the battery cell, only by applying an external force to press the needle head 2211, the second rod body 2214 can be moved away from the first mounting hole 211. One end of the second rod body 2214 protruding out of the first mounting hole 211 is recessed inward to form an annular groove 2216, and the limiting ring 222 is clamped and installed in the annular groove 2216. The limiting ring 222 is a copper sleeve.

[0033] In order to realize the automatic reset of the needle pressing member 22 after pressing, the needle pressing member 22 further includes an elastic member 223. A first step portion 2215 is formed between the first through hole 2111 and the second through hole 2112, and a second step portion 2216 is formed between the first rod body 2213 and the second rod body 2214. Two ends of the elastic member 223 respectively abut against the first step portion 2215 and the second step portion 2216. When pressing the welding tape and the battery cell, the second step portion 2216 moves toward the first step portion 2215, and the elastic member 223 contracts. After the processing is completed, when the external force disappears, the second step portion 2216 can move away from the first step portion 2215 under the elastic action of the elastic member 223, so that the needle pressing piece 221 realizes automatic reset. In this embodiment, the elastic member 223 is a spring.

[0034] It should be noted that second mounting holes 111 having the same structure as the first mounting holes 211 are evenly spaced on the long side 11, and the needle pressing members 22 are installed in the second mounting holes 111 so that the two long sides 11 serve as two of the above-mentioned needle pressing assemblies 2, thereby maximizing the processing efficiency of the press mesh.

[0035] In summary, the screen pressing mechanism of the ceramic frame of the present utility model is provided with a frame body formed by connecting two long sides and two short sides end to end, and a needle pressing component connected to the frame body and adapted to press the solder tape and the battery cell to be processed. Among them, several groups of needle pressing components are provided, and both ends of several groups of needle pressing components are connected in parallel to the two short sides of the frame body. The screen pressing mechanism further includes a reinforcing rib component, and the reinforcing rib component connects two adjacent needle pressing components, the needle pressing component close to the long side and the long side. Moreover, the material of the long side is ceramic material, so as to extend the service life of the whole screen pressing through the characteristics of high strength and high wear resistance of the ceramic material, and the heat dissipation of the ceramic is also good, which is convenient for the heat dissipation of the screen pressing during and after use.

[0036] Obviously, the above-described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, those of ordinary skill in the art can make other different forms of changes or modifications without making creative efforts, and all of them should fall within the protection scope of the present utility model.

Claims

1. A screen pressing mechanism for a ceramic frame, characterized in that, Comprising: A frame body, which is formed by connecting two long sides and two short sides end to end; A needle pressing assembly, connected to the frame body and adapted to press the solder tape and the battery cell to be processed; Wherein, several groups of the needle pressing assemblies are provided, and both ends of several groups of the needle pressing assemblies are connected in parallel to the two short sides of the frame body. The press mesh mechanism further includes a reinforcing rib component, and the reinforcing rib component connects two adjacent needle pressing assemblies and the needle pressing assembly close to the long side and the long side. The material of the long side is a ceramic material.

2. The screen pressing mechanism of the ceramic frame according to claim 1, wherein The needle pressing assembly includes a connecting rod with both ends connected to the short side and a needle pressing component arranged on the connecting rod. The needle pressing component can move relative to the connecting rod in the radial direction.

3. The screen pressing mechanism of the ceramic frame according to claim 2, characterized in that, First mounting holes are uniformly spaced on the connecting rod, and the needle pressing component is mounted in the first mounting holes.

4. The screen pressing mechanism of the ceramic frame according to claim 3, characterized in that, The first mounting hole includes a first through hole and a second through hole connected in the radial direction, and the aperture of the first through hole is smaller than the aperture of the second through hole.

5. The screen pressing mechanism of the ceramic frame according to claim 4, characterized in that, The needle pressing component includes a needle pressing piece and a limiting ring sleeved and connected on the needle pressing piece; The needle pressing piece includes a needle head and a needle rod connected to the needle head. The needle rod includes a first rod body connected to the needle head and a second rod body connected to the first rod body. The limiting ring is sleeved on the second rod body after the second rod body passes through the first mounting hole. The diameter of the needle head is larger than the aperture of the first through hole. The diameter of the first rod body is equal to the aperture of the first through hole. The diameter of the second rod body is equal to the aperture of the second through hole. The length of the needle rod is greater than the length of the first mounting hole. The diameter of the limiting ring is larger than the diameter of the second through hole.

6. The screen pressing mechanism of the ceramic frame according to claim 5, characterized in that, A first step portion is formed between the first through hole and the second through hole. A second step portion is formed between the first rod body and the second rod body. The needle pressing component further includes an elastic member, and both ends of the elastic member respectively abut against the first step portion and the second step portion.

7. The screen pressing mechanism of the ceramic frame according to claim 6, characterized in that, The elastic member is a spring.

8. The screen pressing mechanism of the ceramic frame according to claim 7, characterized in that One end of the second rod body protruding out of the first mounting hole is recessed inward to form an annular groove, and the limiting ring is snap-fitted and installed in the annular groove.

9. The screen pressing mechanism of the ceramic frame according to claim 8, characterized in that, The limiting ring is a copper sleeve.

10. The screen pressing mechanism of the ceramic frame according to claim 9, characterized in that, Second mounting holes with the same structure as the first mounting holes are uniformly spaced on the long side, and needle pressing components are installed in the second mounting holes so that the two long sides serve as two needle pressing assemblies.

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