Composite current collector laser drilling apparatus

Abstract

The utility model discloses a kind of composite current collector laser drilling equipment, it include: pedestal, unwinding unit and winding unit are configured on the pedestal, the unwinding unit is to release the composite current collector of winding, the winding unit is to release the composite current collector of the unwinding unit;Flattening assembly and laser drilling assembly, the flattening assembly and the laser drilling assembly are configured on the pedestal, the flattening assembly is to the composite current collector between the unwinding unit and winding unit is partially flattened, the laser drilling assembly can be punched to the composite current collector flattened by the flattening assembly;Air cooling component, the air cooling component is configured between the laser drilling assembly and the winding unit on the pedestal, to be air-cooled to the composite current collector after punching;The utility model can solve the problem that traditional composite current collector punching is generally carried out by mechanical equipment, there is the problem of low punching efficiency, punching precision deficiency.

Description

Technical Field

[0001] This utility model relates to the field of composite current collector technology, specifically to a composite current collector laser drilling device. Background Technology

[0002] Composite current collectors have a "sandwich" structure, with an inner polymer layer (such as PET, PP, or PI) and two outer conductive metal layers (such as Al or Cu). The production process of composite current collectors often requires drilling. Traditionally, drilling is done using mechanical equipment. However, both drilling and punching methods can result in excessively large holes, and mechanical drilling is inefficient, hindering production. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a composite current collector laser drilling device.

[0004] To achieve the above objectives, the technical solution adopted by this utility model includes:

[0005] A base, on which an unwinding unit and a winding unit are disposed, the unwinding unit being used to release the wound composite current collector, and the winding unit being used to wind the composite current collector released by the unwinding unit.

[0006] The flattening component and the laser drilling component are both disposed on the base. The flattening component is used to partially flatten the composite current collector between the unwinding unit and the winding unit. The laser drilling component can drill holes in the composite current collector flattened by the flattening component.

[0007] An air-cooling component is disposed on the base between the laser drilling component and the winding unit to cool the composite current collector after drilling.

[0008] In the preferred embodiment of the above-mentioned composite current collector laser drilling equipment, the flattening component includes at least a first limiting roller and a second limiting roller located opposite each other below the unwinding unit and the winding unit, wherein the first limiting roller and the second limiting roller are on the same horizontal line.

[0009] In the preferred embodiment of the above-mentioned composite current collector laser drilling equipment, the laser drilling assembly includes at least a stand configured on the base and a liftable laser emitter configured on the stand.

[0010] In the preferred embodiment of the above-mentioned composite current collector laser drilling equipment, the air-cooling component includes a semiconductor cooling chip having a cold end and a hot end, a cooling fan disposed at the cold end, and a heat-conducting fan disposed at the hot end.

[0011] In the preferred embodiment of the above-mentioned composite current collector laser drilling device, the cold end of the semiconductor cooling chip is provided with cooling fins, and the hot end of the semiconductor cooling chip is provided with heat dissipation fins.

[0012] In the preferred embodiment of the laser drilling equipment for the composite current collector described above, a pressure roller that rolls in contact with the composite current collector is installed on the base, the composite current collector is constrained into a V-shaped structure by the pressure roller, and the cooling fan is located directly below the pressure roller.

[0013] In the preferred embodiment of the above-mentioned composite current collector laser drilling device, a baffle is provided around the outer periphery of the heat-conducting fan, and the baffle extends toward the composite current collector to enclose the area where the cooling fan is located.

[0014] In the preferred embodiment of the above-mentioned composite current collector laser drilling equipment, the top of the cooling fan is provided with a guide shroud extending toward the composite current collector, and the cross-section of the guide shroud is funnel-shaped.

[0015] In the preferred embodiment of the above-mentioned composite current collector laser drilling equipment, the air guide shroud is bent at the end away from the cooling fan to form a flow guiding structure.

[0016] The beneficial effects of this utility model are that the composite current collector is limited by the first and second limiting rollers to make it horizontal, which facilitates the laser emitter to drill holes in the composite current collector. At the same time, the airflow is blown by the cooling fan through the cold end of the semiconductor cooling chip to reduce the airflow temperature before blowing it to the drilling position of the composite current collector, thereby achieving rapid cooling of the drilling part of the composite current collector, avoiding thermal stress and thermal deformation of the composite current collector, and maintaining the performance requirements of the composite current collector. Attached Figure Description

[0017] Figure 1 This is a front view of the present invention;

[0018] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0019] In the figure: base 1, unwinding unit 2, winding unit 3, flattening assembly 4, first limiting roller 41, second limiting roller 42, laser drilling assembly 5, stand 51, laser emitter 52, air cooling assembly 6, semiconductor cooling chip 61, cooling fan 62, heat-conducting fan 63, cooling fins 64, heat dissipation fins 65, pressure roller 66, baffle 67, air guide 68, airflow guiding structure 69. Detailed Implementation

[0020] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0021] It should be noted that in the description of this utility model, terms such as "upper," "lower," "left," "right," "front," and "rear," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] like Figures 1 to 2 As shown, the composite current collector laser drilling device of this utility model includes: a base 1, on which an unwinding unit 2 and a winding unit 3 are disposed. The unwinding unit 2 is used to unwind the wound composite current collector, and the winding unit 3 is used to wind the composite current collector unwound by the unwinding unit 2; a flattening component 4 and a laser drilling component 5, both of which are disposed on the base 1. The flattening component 4 is used to partially flatten the composite current collector between the unwinding unit 2 and the winding unit 3, and the laser drilling component 5 is capable of drilling holes in the composite current collector flattened by the flattening component 4; and an air-cooling component 6, which is disposed between the base 1 and the laser drilling component 5 and the winding unit 3, for air-cooling the composite current collector after drilling.

[0024] See Figure 1 The unwinding unit 2 includes at least an unwinding roller and an unwinding motor for controlling the rotation of the unwinding roller, and the winding unit 3 includes at least a winding roller and a winding motor for controlling the rotation of the winding roller; the unwinding roller has a composite current collector to be laser-drilled wound on it, and the winding roller is used to complete the laser-drilled composite current collector.

[0025] See Figure 1The flattening assembly 4 is disposed between the unwinding roller and the winding roller, and the laser drilling assembly 5 is located on the base 1 above the flattening assembly 4 to perform drilling operation on the composite current collector flattened by the flattening assembly 4.

[0026] When performing laser drilling on the composite current collector, the unwinding motor first controls the unwinding roller to rotate to release the wound composite current collector, and the winding motor controls the winding roller to rotate to wind the composite current collector released by the unwinding unit 2. When the composite current collector passes through the flattening component 4, the composite current collector is in a horizontal state and is taut. Then, the laser drilling component 5 drills holes in the composite current collector flattened by the flattening component 4. When the drilled part of the composite current collector moves to the air-cooling component 6, the air-cooling component 6 can quickly cool the drilled part of the composite current collector to avoid thermal stress and thermal deformation of the composite current collector and maintain the performance requirements of the composite current collector.

[0027] In one or more embodiments, the flattening assembly 4 includes at least a first limiting roller 41 and a second limiting roller 42 located opposite each other below the unwinding unit 2 and the winding unit 3, with the first limiting roller 41 and the second limiting roller 42 on the same horizontal line.

[0028] See Figure 1 The first limiting roller 41 and the second limiting roller 42 are located on the same horizontal line and are lower than the unwinding roller and the winding roller. The composite current collector released by the unwinding roller and the composite current collector wound by the winding roller pass through the first limiting roller 41 and the second limiting roller 42. Since the first limiting roller 41 and the second limiting roller 42 are in a low position, the composite current collector passing through the first limiting roller 41 and the second limiting roller 42 is in a horizontal state, so that the laser drilling assembly 5 can perform laser drilling operation on the composite current collector.

[0029] In other possible implementations, the flattening assembly 4 may consist of two sets of horizontally arranged upper and lower rollers, with the composite current collector passing between the two sets of upper and lower rollers. It should be noted that the positions of the two sets of upper and lower rollers relative to the unwinding unit 2 and the winding unit 3 are not limited in this case.

[0030] In one or more embodiments, the laser drilling assembly 5 includes at least a stand 51 disposed on the base 1 and a laser emitter 52 disposed on the stand 51 that can be raised and lowered.

[0031] See Figure 1The laser emitter 52 can be mounted on the stand 51 via a drive cylinder. By extending and retracting the shaft end of the drive cylinder, the laser emitter 52 can be vertically raised and lowered on the stand 51, thereby adjusting the position of the laser emitter 52 relative to the composite current collector in the height direction. The laser emitter 52 can emit a laser to irradiate the composite current collector to form a hole of a predetermined depth on the composite current collector. It features simple operation, high drilling accuracy, and high drilling efficiency.

[0032] In one or more embodiments, the air-cooled assembly 6 includes a thermoelectric cooler 61 having a cold end and a hot end, a cooling fan 62 disposed at the cold end, and a heat-conducting fan 63 disposed at the hot end; the cold end of the thermoelectric cooler 61 is provided with cooling fins 64, and the hot end of the thermoelectric cooler 61 is provided with heat dissipation fins 65; a pressure roller 66 is mounted on the base 1 to roll in contact with the composite current collector, the composite current collector is constrained into a V-shaped structure by the pressure roller 66, and the cooling fan 62 is located directly below the pressure roller 66; a baffle 67 is disposed around the outer periphery of the heat-conducting fan 63, the baffle 67 extends toward the composite current collector to enclose the area where the cooling fan 62 is located; a guide shroud 68 is disposed on the top of the cooling fan 62 and extends toward the composite current collector, the cross-section of the guide shroud 68 is funnel-shaped; the guide shroud 68 is bent at the end away from the cooling fan 62 to form a flow guiding structure 69.

[0033] See Figure 1 , Figure 2 When dissipating heat from the perforated composite current collector, the thermoelectric cooler 61 is first activated. The cold end of the thermoelectric cooler 61 generates a cold source, while the hot end dissipates heat. The cold source at the cold end is dissipated to the outside through the cooling fins 64. Driven by the cooling fan 62, the airflow between the air guide shroud 68 and the baffle 67 enters between the cooling fins 64. This airflow is cooled by the cooling fins 64 and then blown into the baffle shroud to be concentrated and directed towards the perforated position of the composite current collector. The airflow passes through the composite current collector... After the hole is drilled, it is blocked by the baffle 67. At the same time, under the action of the cooling fan 62 and the heat-conducting fan 63, the airflow enters the space between the baffle 67 and the air guide 68. Then, part of the airflow is drawn by the cooling fan 62 to the space between the cooling fins 64. Since the temperature of this part of the airflow is lower than that of the room temperature airflow, it can reduce the pressure of the cold end of the semiconductor refrigeration chip on the airflow for cooling. Another part of the airflow is drawn by the heat-conducting fan 63 to the space between the heat dissipation fins 65 to cool the heat dissipation fins 65, thereby cooling the hot end of the semiconductor refrigeration chip 61.

[0034] It should be noted that the airflow guiding structure 69 can guide part of the airflow blown out by the air guide 68 to the space between the air guide 68 and the baffle 67, thereby accelerating the airflow.

[0035] In one or more embodiments, a smoke removal structure is disposed directly below the laser emitter 52 on the base 1; the smoke removal structure includes a smoke guide pipe and an exhaust fan, the exhaust fan can create a negative pressure inside the smoke guide pipe so that the smoke guide pipe extending to the drilling position of the composite current collector can absorb the smoke generated by the drilling, thereby improving the use effect of this application.

[0036] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A composite current collector laser drilling device, characterized in that, include: A base, on which an unwinding unit and a winding unit are disposed, wherein the unwinding unit is used to release the wound composite current collector, and the winding unit is used to wind the composite current collector released by the unwinding unit. The flattening component and the laser drilling component are both disposed on the base. The flattening component is used to partially flatten the composite current collector between the unwinding unit and the winding unit, and the laser drilling component can drill holes in the composite current collector flattened by the flattening component. An air-cooling component is disposed on the base between the laser drilling component and the winding unit to cool the composite current collector after drilling.

2. The composite current collector laser drilling device according to claim 1, characterized in that: The flattening assembly includes at least a first limiting roller and a second limiting roller located opposite each other below the unwinding unit and the winding unit, the first limiting roller and the second limiting roller being on the same horizontal line.

3. The composite current collector laser drilling device according to claim 1, characterized in that: The laser drilling assembly includes at least a stand configured on the base and a liftable laser emitter configured on the stand.

4. The composite current collector laser drilling device according to claim 1, characterized in that: The air-cooling assembly includes a semiconductor refrigeration chip having a cold end and a hot end, a cooling fan disposed at the cold end, and a heat-conducting fan disposed at the hot end.

5. The composite current collector laser drilling device according to claim 4, characterized in that: The cold end of the semiconductor refrigeration chip is equipped with cooling fins, and the hot end of the semiconductor refrigeration chip is equipped with heat dissipation fins.

6. The composite current collector laser drilling device according to claim 4, characterized in that: A pressure roller is installed on the base to make rolling contact with the composite current collector. The composite current collector is constrained into a V-shaped structure by the pressure roller, and the cooling fan is located directly below the pressure roller.

7. The composite current collector laser drilling device according to claim 4 or 6, characterized in that: The outer periphery of the heat-conducting fan is provided with a baffle, which extends toward the composite current collector to enclose the area where the heat-conducting fan is located.

8. The composite current collector laser drilling device according to claim 7, characterized in that: The top of the cooling fan is equipped with an air guide shroud extending toward the composite current collector, and the cross-section of the air guide shroud is funnel-shaped.

9. The composite current collector laser drilling device according to claim 8, characterized in that: The air guide shroud is bent at the end away from the cooling fan to form a flow guiding structure.

Images