Blade battery tab laser welding dust removal protection structure and battery processing device

Abstract

The utility model provides a blade battery tab laser welding dust removal protection structure and a battery processing device. The blade battery tab laser welding dust removal protection structure comprises an adjusting mechanism; the protection mechanism comprises a protection assembly, an opening communicating with the outside is formed in one side of the protection assembly, a welding channel and a shielding gas conveying channel which communicate with each other are arranged in the protection assembly, and the welding channel and the shielding gas conveying channel communicate with the opening. The actual operation position of the protection mechanism is adjusted through the adjusting mechanism, the protection mechanism makes close contact with the battery cover plate to be machined, then directional welding machining of the battery cover plate is achieved through the welding channel, in the process, the protection gas conveying channel can blow protection gas to the welding portion, and the welding effect is improved. Therefore, the purposes of preventing welding spot oxidation and improving welding quality are achieved. Compared with a conventional welding machining technology at the present stage, the method has the remarkable advantages of being flexible to use, high in controllability, wide in application range, capable of remarkably improving the welding machining quality and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to a welding auxiliary element technical field, specifically points to a blade battery pole lug laser welding dust removal protection structure and battery processing device. BACKGROUND

[0002] With the transformation of global energy structure and the rapid development of new energy automobile market, lithium battery technology, especially the innovation and application of blade battery, has attracted widespread attention. Blade battery realizes higher energy density and better heat dissipation performance with its unique structure design, greatly improves the overall performance and safety of the battery, and quickly occupies a place in the market. However, in the production and manufacturing process of blade battery, the laser welding technology of pole lug and cover plate becomes a technical bottleneck.

[0003] Traditional welding operation often needs to be carried out in an open environment, which exposes the welding point to oxygen in the air, thereby causing the universal problem of welding point oxidation. Welding point oxidation not only changes the electrochemical properties of the welding point surface, but also seriously affects the conductivity and stability of the battery, thereby negatively affecting the overall performance and service life of the battery.

[0004] Specifically, the formation of oxidation layer not only increases the contact resistance of welding point and reduces the transmission efficiency of current, but also with the passage of time, the continuous thickening of oxidation layer will lead to the decrease of welding point mechanical strength, thereby increasing the failure risk of battery under the condition of vibration or temperature change. In addition, the existence of oxidation layer may also cause local overheating of battery during cyclic charging and discharging process, which not only affects the energy conversion efficiency of battery, but also may accelerate the aging of battery and shorten its service life.

[0005] Although there are some technical means to try to solve the problem of welding point oxidation at present, such as using high-speed welding to reduce oxygen contact time, using antioxidant coating or filling material, etc., but these methods still have certain limitations in practical application. High-speed welding may affect the welding quality, while the cost of antioxidant coating or filling material is high, and the effect may not be satisfactory in complex welding environment. Therefore, these problems urgently need a more effective and economical solution. SUMMARY

[0006] Therefore, the utility model wants to solve the technical problem of overcoming the problem of welding mark in the prior art cover plate welding, and provides a blade battery pole lug laser welding dust removal protection structure and battery processing device.

[0007] To solve the above technical problems, the utility model provides a kind of blade battery tab laser welding dust removal protection structure, it includes: adjusting mechanism;Protective mechanism, the protective mechanism is moved along its height direction by the adjusting mechanism, it includes protection component, the protection component one side is equipped with with the opening of intercommunication with outside, the opening can be abutted on the battery cover plate to be processed, the protection component inside is equipped with intercommunication welding channel and at least one protective gas transmission channel, and the welding channel and the at least one protective gas transmission channel are respectively communicated with the opening, wherein, the welding channel is circumscribed laser welding equipment, at least one the protective gas transmission channel is circumscribed protective gas supply equipment.

[0008] In an embodiment of the utility model, the protection component further includes an assembly plate and a guide housing, the assembly plate is arranged above the guide housing, the welding channel and the at least one protective gas transmission channel respectively penetrate the assembly plate and the guide housing, and at least part of the side wall of the guide housing gradually shrinks away from the assembly plate.

[0009] In an embodiment of the utility model, the protection component further includes a docking housing, the docking housing is arranged on the assembly plate, one side of the docking housing is communicated with the welding channel and the protective gas transmission channel, and the other side is connected with the external protective gas supply equipment and the laser welding equipment.

[0010] In an embodiment of the utility model, the protection component further includes at least one dust removal channel, the dust removal channel is arranged on one side of the welding channel, one end of the dust removal channel is communicated with the opening, and the other end is circumscribed with a dust collection device.

[0011] In an embodiment of the utility model, the protective mechanism further includes at least one pressing assembly, the pressing assembly includes a pressing driver and a connecting rod, the pressing driver is arranged on the adjusting mechanism, one end of the connecting rod is arranged on the working end of the pressing driver, and the other end is connected with the protection component.

[0012] In an embodiment of the utility model, the adjusting mechanism includes a mounting plate, a lifting assembly and an adjusting driver, the adjusting driver is arranged on the mounting plate, the working end of the adjusting driver is connected with the lifting assembly to drive the lifting assembly to move up and down along its height direction, the protection component is connected with the lifting assembly and moves synchronously with the lifting assembly.

[0013] In an embodiment of the utility model, at least one lifting module is arranged on the mounting plate, the lifting assembly includes a sliding plate and a frame, the sliding plate is slidingly connected with the at least one lifting module, one end of the frame is fixedly connected with the sliding plate, and the other end is connected with the protective mechanism.

[0014] In an embodiment of the utility model, the protection assembly includes a plurality of protection gas transmission channels, and the plurality of protection gas transmission channels are arranged at the periphery of the welding channel.

[0015] In an embodiment of the utility model, the adjusting mechanism and the protection mechanism are respectively connected to the control mechanism.

[0016] The utility model also provides a battery processing device which comprises the above-mentioned blade battery tab laser welding dust removal protection structure.

[0017] Compared with the prior art, the above technical scheme of the utility model has the following advantages:

[0018] The blade battery tab laser welding dust removal protection structure and the battery processing device, by adjusting mechanism adjusts the actual work position of protection mechanism, makes protection mechanism and the battery cover plate to be processed close contact, then realizes the directional welding processing to the battery cover plate through the welding channel, in this process, the protection gas transmission channel can send the protection gas to the welding position, thereby reducing the oxygen concentration of the welding position, and further realizing the purpose of preventing the welding point from oxidizing and improving the welding quality. Compared with the conventional welding processing technology at the present stage, the application has the advantages of flexible use, high controllability, wide application range and significant improvement of welding processing quality, and has a broad application prospect in the industry. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to make the content of the utility model more easily understood, the utility model will be further described in detail in combination with the drawings according to the specific embodiments of the utility model.

[0020] Figure 1 is the three-dimensional structure schematic view of the blade battery tab laser welding dust removal protection structure in the preferred embodiment of the utility model,

[0021] Figure 2 is Figure 1 the side view of the welding dust removal protection mechanism shown in the figure,

[0022] Figure 3 is Figure 1 the three-dimensional structure schematic view of part of the protection mechanism in the welding dust removal protection mechanism shown in the figure.

[0023] The description reference signs are as follows: 100, adjusting mechanism; 110, mounting plate; 111, lifting module; 120, lifting assembly; 121, sliding plate; 122, frame body; 130, adjusting driver; 200, protection mechanism; 210, protection assembly; 211, protection gas transmission channel; 212, welding channel; 213, dust removal channel; 214, assembly plate; 215, guide housing; 216, butt joint housing; 220, pressing assembly; 221, pressing driver; 222, connecting rod. DETAILED DESCRIPTION

[0024] The utility model will be further explained in combination with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0025] Embodiment one

[0026] Referring to Figure 1 and Figure 2 The embodiment provides a blade battery tab laser welding dust removal protection structure, which comprises an adjusting mechanism 100 and a protection mechanism 200, the protection mechanism 200 is moved up and down along the height direction thereof through the adjusting mechanism 100, and comprises a protection assembly 210, one side of the protection assembly 210 is provided with an opening in communication with the outside, the opening can abut on a battery cover plate to be processed, the protection assembly 210 is internally provided with a welding channel 212 and at least one protection gas transmission channel in communication with each other, and the welding channel and the at least one protection gas transmission channel are in communication with the opening respectively, wherein the welding channel 212 is externally connected with a laser welding equipment, and the at least one protection gas transmission channel 211 is externally connected with a protection gas supply equipment.

[0027] The blade battery tab laser welding dust removal protection structure disclosed by the embodiment adjusts the actual working position of the protection mechanism 200 through the adjusting mechanism 100, so that the protection mechanism 200 is in close contact with the battery cover plate to be processed, then directional welding processing of the battery cover plate is realized through the welding channel 212, in the process, the protection gas transmission channel can blow protection gas to the welding position, thereby reducing the oxygen concentration of the welding position, and the purpose of preventing the welding point from being oxidized and improving the welding quality is realized. Compared with the conventional welding processing technology at the present stage, the application has the advantages of flexible use, high controllability, wide application range and significant improvement of welding processing quality, and has a broad application prospect in the industry.

[0028] Referring to Figure 1As shown, in the embodiment, the adjusting mechanism 100 is connected to the external mounting surface or the mobile device, which is used to make large-scale adjustment to the actual working position of the protection mechanism 200. Specifically, in the embodiment, the adjusting mechanism 100 comprises a mounting plate 110, a lifting assembly 120, and an adjusting driver 130, the adjusting driver 130 is arranged on the mounting plate 110, and the working end of the adjusting driver 130 is connected to the lifting assembly 120 to drive the lifting assembly 120 to move up and down along the height direction thereof, and the protection assembly is connected to the lifting assembly 120 and moves synchronously with the lifting assembly 120. Specifically, the adjusting driver 130 in the embodiment is preferably a linear cylinder, which is used to drive the protection assembly 210 to move relative to the mounting plate 110. Further, at least one lifting module 111 can be arranged on the mounting plate 110, and the lifting assembly 110 moves as a whole. In the embodiment, two lifting modules 111 are arranged at intervals in the width direction of the mounting plate 110, thereby improving the stability of the lifting assembly 110 during the lifting movement.

[0029] Further, the lifting assembly 120 in the embodiment comprises a sliding plate 121 and a frame body 122, the sliding plate 121 is slidingly connected to the at least one lifting module 111, one end of the frame body 122 is fixedly connected to the sliding plate 121, and the other end is connected to the protection mechanism 200, thereby providing a mounting and connecting platform for the protection mechanism 200. Specifically, in the embodiment, the protection mechanism 200 and the mounting plate 110 are arranged on opposite sides of the lifting assembly 120. Further, a reinforcing plate is arranged between the sliding plate 121 and the frame body 122 to improve the stability thereof during the movement. In addition, the frame body 122 is further provided with lightening holes to reduce the mass thereof.

[0030] Further, in order to improve the close contact degree between the protection mechanism 200 and the battery cover plate to be processed, the protection mechanism 200 in the embodiment further comprises at least one pressing assembly 220, the pressing assembly 220 comprises a pressing driver 221 and a connecting rod 222, the pressing driver 221 is arranged on the adjusting mechanism 100, one end of the connecting rod 222 is arranged on the working end of the pressing driver 221, and the other end is connected to the protection assembly 210, which is used to ensure that the protection mechanism 200 and the battery cover plate to be processed can be in close contact. Specifically, the pressing driver 221 in the embodiment is preferably a pressing cylinder, which applies a pressing driving force to the protection assembly 210 through the connecting rod 222.

[0031] Referring to Figure 3As shown, the protection assembly 210 in the embodiment further comprises an assembly plate 214 and a guide housing 215, the assembly plate 214 is arranged above the guide housing 215, the welding channel 212 and the at least one protective gas transmission channel 211 respectively penetrate the assembly plate 214 and the guide housing 215, at least part of the side wall of the guide housing 215 gradually shrinks in the direction away from the assembly plate 214, in the actual processing process, the welding gas and the protective gas respectively enter the guide housing 215 through the assembly plate 214, and the guide housing 215 is arranged to transmit the welding laser and the protective gas to the position to be processed. In the embodiment, the protection assembly 210 comprises a plurality of protective gas transmission channels 211, a plurality of the protective gas transmission channels 211 are arranged outside the welding channel 212 to improve the gas supply amount and uniformity of the protective gas. Specifically, the protective gas is preferably nitrogen, filling nitrogen can isolate oxygen in the air, prevent the metal from contacting with oxygen during welding, avoid the occurrence of oxidation reaction, thereby realizing the purpose of maintaining the smoothness of the weld and reducing the oxides in the weld, and preventing the formation of the welding mark. In different embodiments, the protective gas can also be set as other inert gases according to actual use requirements, and the utility model does not make specific limitation hereon.

[0032] In the embodiment, the protection assembly 210 further comprises at least one dust removal channel 213, the dust removal channel 213 is arranged on one side of the welding channel, one end of the dust removal channel 213 is in communication with the opening, and the other end is connected with a dust suction device. In the actual production and processing process, if the welding slag and debris generated during welding enter the battery, the battery performance and use safety will be seriously affected, therefore, in the embodiment, the welding slag and debris are synchronously adsorbed and cleaned during the welding process through the design of the dust removal channel 213, thereby realizing the cleaning degree in the processing process, and improving the use safety and yield of the battery.

[0033] Further, the protection assembly 210 further comprises a docking housing 216, the docking housing 216 is arranged on the assembly plate 214, one side of the docking housing 216 is in communication with the welding channel 212, the dust removal channel 213 and the protective gas transmission channel 211, and the other side is connected with an external protective gas supply device, a dust suction device and a laser welding device.

[0034] In addition, the embodiment further comprises a control mechanism, the adjustment mechanism 100 and the protection mechanism 200 are respectively connected to the control mechanism, in the actual production and processing process, an operator can real-time regulate and control the above structure through the control mechanism, thereby improving the use flexibility of the device, and the parameters can also be preset through the control mechanism, thereby improving the automation degree of the device.

[0035] Embodiment two

[0036] The embodiment provides a battery processing device, which comprises the blade battery tab laser welding dust removal protection structure described in the embodiment one.

[0037] In conclusion, the blade battery tab laser welding dust removal protection structure and the battery processing device have the following advantages: the actual operation position of the protection mechanism 200 is adjusted by the adjusting mechanism 100, the protection mechanism 200 is in close contact with the battery cover plate to be processed, then directional welding processing of the battery cover plate is realized through the welding channel 212, in the process, the protection gas conveying channel can blow protection gas to the welding position, thereby reducing the oxygen concentration of the welding position, and the purpose of preventing the welding point from being oxidized and improving the welding quality is realized. Compared with the conventional welding processing technology at the present stage, the application has the advantages of flexible use, high controllability, wide application range and the welding processing quality can be significantly improved, and has a wide application prospect in the industry.

[0038] Obviously, the above-mentioned embodiments are only examples for clearly illustrating, and are not limited to the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments cannot be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A dust removal protection structure for laser welding of blade cell tab, characterized in that: The application relates to a laser welding and dust removal protection structure for blade battery tab, which comprises the following components. The protection mechanism is lifted and moved along the height direction by the adjusting mechanism, and comprises a protection assembly which is provided with an opening on one side and is in communication with the outside, the opening can abut against a battery cover plate to be processed, a welding channel and at least one protection gas transmission channel which are in communication with each other and are arranged in the protection assembly, and the welding channel and the at least one protection gas transmission channel are respectively in communication with the opening, wherein the welding channel is connected with a laser welding device, and the at least one protection gas transmission channel is connected with a protection gas supply device. The protection assembly further comprises an assembly plate and a guide shell, the assembly plate is arranged above the guide shell, the welding channel and the at least one protection gas transmission channel respectively penetrate the assembly plate and the guide shell, and at least part of the side wall of the guide shell is gradually contracted in the direction away from the assembly plate.

2. The blade cell tab laser welding dust extraction protection structure of claim 1, wherein: The protection assembly further comprises a docking shell which is arranged on the assembly plate, one side of the docking shell is in communication with the welding channel and the protection gas transmission channel, and the other side is connected with an external protection gas supply device and a laser welding device.

3. The blade cell tab laser welding dust extraction protection structure of claim 2, wherein: The protection assembly further comprises at least one dust removal channel which is arranged on one side of the welding channel, one end of the dust removal channel is in communication with the opening, and the other end is connected with a dust suction device.

4. The blade cell tab laser welding dust extraction protection structure of claim 1, wherein: The protection mechanism further comprises at least one pressing assembly, the pressing assembly comprises a pressing driver and a connecting rod, the pressing driver is arranged on the adjusting mechanism, one end of the connecting rod is arranged on the working end of the pressing driver, and the other end is connected with the protection assembly.

5. The blade cell tab laser welding dust extraction protection structure of claim 1, wherein: The adjusting mechanism comprises a mounting plate, a lifting assembly and an adjusting driver, the adjusting driver is arranged on the mounting plate, the working end of the adjusting driver is connected with the lifting assembly to drive the lifting assembly to be lifted and moved along the height direction, and the protection assembly is connected with the lifting assembly and synchronously moves with the lifting assembly.

6. The blade cell tab laser welding dust extraction protection structure of claim 1, wherein: The mounting plate is provided with at least one lifting module, the lifting assembly comprises a sliding plate and a frame body, the sliding plate is slidingly connected with the at least one lifting module, one end of the frame body is fixedly connected with the sliding plate, and the other end is connected with the protection mechanism.

7. The blade cell tab laser weld dust extraction protection structure of claim 6, wherein: The protection assembly comprises a plurality of protection gas transmission channels which are arranged around the welding channel.

8. The blade cell tab laser welding dust extraction protection structure of claim 1, wherein: The application further comprises a control mechanism, and the adjusting mechanism and the protection mechanism are respectively connected with the control mechanism.

9. The blade cell tab laser welding dust extraction protection structure of claim 1, wherein: The application further comprises a control mechanism, and the adjusting mechanism and the protection mechanism are respectively connected with the control mechanism.

10. A battery processing apparatus, characterized by: ​

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