Passivation device for battery collector pin processing

Abstract

The invention discloses a passivation device for battery collector pin processing, and relates to the technical field of collector pin processing, and the passivation device comprises a control cabinet used for controlling equipment to work; the soaking assembly is located on one side of the control cabinet and is filled with a passivation solution; the supporting frame is connected with the two sides of the soaking assembly and used for supporting the soaking assembly; in the operation process of the passivation device, when the passivation mechanism in the passivation device is overturned to the top of the tank body, the passivation mechanism can smoothly slide downwards along the inner wall of the tank body by virtue of the rolling assistance of the balls and the action of gravity. When the passivation solution passes through the filter cylinder, the passivation solution can comprehensively and powerfully wash the surface of the semiconductor collector needle, effectively avoid dead angle areas which are not fully soaked on the surface of the collector needle, clear bubbles attached to the surface of the collector needle, prevent the bubbles from hindering full contact between the passivation solution and the surface of the collector needle, and improve the service life of the collector needle. Therefore, the uniformity and the consistency of the passivation effect are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of current collector needle processing, in particular to a passivation device used for processing battery current collector needles. Background Art

[0002] In the battery field, current collectors are key components connecting electrodes to external circuits. In recent years, semiconductor-based current collectors have become a research hotspot. Semiconductor materials (such as graphite, carbon nanotubes, and metal oxide semiconductors) possess tunable conductivity, excellent chemical stability, and mechanical properties. Through methods such as doping and surface treatment, their electrical and chemical properties can be optimized, making them more suitable for use in battery environments.

[0003] The passivation treatment technology of the collector needle is also part of the existing technology. Its purpose is to form a protective film on the surface of the collector needle. The passivation treatment can effectively prevent the semiconductor material from being oxidized, corroded or reacting adversely with the electrolyte during processing and use.

[0004] At present, the common passivation device usually immerses the collector needle in the passivation liquid for treatment. Although this traditional immersion method can make the surface of the collector needle contact with the passivation liquid, it has the following problems: First, the collector needle is in a static state in the passivation liquid, resulting in insufficient flow of the passivation liquid, which easily forms dead corners on the surface of the collector needle, making some areas unable to be fully immersed, affecting the uniformity of the passivation effect. Second, during the passivation process, bubbles may adhere to the surface of the collector needle. These bubbles will prevent the passivation liquid from fully contacting the surface of the collector needle, thereby affecting the passivation effect; To this end, this solution proposes a passivation device for processing battery collector needles, which can fully passivate the surface of the collector needles and reduce the impact of surface bubble attachment. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a passivation device for processing battery collector needles, which solves the problems of the prior art in terms of uniformity of passivation effect and bubble removal in the prior art.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A passivation device for processing battery collector needles, comprising: Control cabinet, used to control equipment operation; Also includes: An immersion component is located on one side of the control cabinet and is filled with a passivation liquid; A support frame connected to both sides of the immersion assembly and used to support the immersion assembly; A driving motor is installed at one end of the top of the support frame and is used to drive the soaking assembly to rotate; A passivation mechanism, located inside the immersion assembly, for placing semiconductor collector needles for passivation treatment; A centrifugal assembly is installed at the bottom of the immersion assembly and is in driving connection with the passivation mechanism to drive the passivation mechanism to rotate; The recovery tank is installed at the bottom of the support frame and is used to collect the passivation liquid.

[0007] Preferably, the immersion assembly includes a tank body, both sides of which are connected to the output end of the drive motor via a shaft, and the tank body is connected to an external power source via an electric slip ring. A buckle is installed at one end of the top of the tank body, and the tank body is connected to the top cover via the buckle. A liquid inlet valve is installed on the top of the top cover, and the liquid inlet valve is used to inject passivation liquid. A drain valve is installed at the bottom of the tank body, and the drain valve is used to drain the passivation liquid inside the tank body. By connecting the tank body to the output end of the drive motor, the tank body can be rotated, thereby driving the internal passivation liquid and collector needle to move, allowing the passivation liquid to flow fully, avoiding the formation of dead corners on the surface of the collector needle. At the same time, the centrifugal force generated by the rotation and the liquid flow effectively remove bubbles attached to the surface of the collector needle, thereby improving the uniformity of the passivation effect. The tank body is connected to the external power source via an electric slip ring to ensure stable power supply during rotation and guarantee the normal operation of the equipment.

[0008] Preferably, the passivation mechanism includes a sliding assembly and a filter assembly. The sliding assembly slides with the interior of the tank body and slides back and forth within the tank body under the action of gravity. The filter assembly is installed inside the sliding assembly, and the interior of the filter assembly is used to place semiconductor collector needles. Through the sliding cooperation between the sliding assembly and the interior of the tank body, and the reciprocating sliding of the sliding assembly under the action of gravity, the passivation mechanism can move up and down within the tank body, thereby driving the semiconductor collector needles within the filter assembly to continuously move in the passivation liquid. This movement method can effectively avoid the formation of dead corners of the passivation liquid on the surface of the collector needles, ensure that the passivation liquid can fully contact all parts of the collector needles, and improve the uniformity and consistency of the passivation effect.

[0009] Preferably, the sliding assembly includes a connecting ring, a counterweight block is installed at the bottom and top of the connecting ring, the counterweight block is a ring-shaped structure, the outer wall of the counterweight block is provided with a groove, and a ball is embedded in the groove of the outer wall of the counterweight block, and the ball is in sliding contact with the inner wall of the tank body. The counterweight block is provided with two, and the two surfaces of the counterweight blocks are provided with a guide cover by screws. The guide cover is provided with two, and the two guide covers are in a trumpet-shaped structure; the setting of the counterweight block provides a stable gravity effect for the sliding assembly, ensuring that it can slide back and forth smoothly inside the tank body, while maintaining balance and stability during movement, avoiding the passivation effect caused by shaking or tilting; the ball is embedded in the groove of the outer wall of the counterweight block and in sliding contact with the inner wall of the tank body. This design significantly reduces the friction between the sliding assembly and the inner wall of the tank body, so that the sliding assembly can move more flexibly inside the tank body; the guide cover is installed on the surface of the two counterweight blocks by screws, and its trumpet-shaped structure can effectively guide the flow direction of the passivation liquid, so that the passivation liquid can more evenly flush the surface of the collector needle when passing through the filter cartridge.

[0010] Preferably, a limiting ring is provided on the outside of the connecting ring, and the limiting ring is connected to the outer wall of the connecting ring by bolts. The outer wall of the limiting ring is provided with a ring-shaped groove. When the limiting ring is located at one end of the top of the tank body, it is engaged with the positioning pin. One end of the positioning pin is threadedly connected to the inner wall of the tank body, and the other end of the positioning pin is in sliding contact with the outer wall of the tank body, and a rubber sealing ring is provided on the sliding contact surface between the positioning pin and the tank body. There are two symmetrically distributed positioning pins, and a knob is welded on one end of the positioning pin; the limiting ring is connected to the outer wall of the connecting ring by bolts, and the annular groove on its outer wall is designed to enable it to be engaged with the positioning pin. This structure can fix the sliding assembly to the top of the tank body when needed to prevent it from sliding due to gravity during the rotation of the tank body.

[0011] Preferably, the filter assembly includes a filter cover, and there are two filter covers, and there are holes and grooves inside the two filter covers that are smaller than the diameter of the semiconductor collector needle. Two handles are installed on the surface of the filter cover by bolts. The filter cover is threadedly connected to the guide cover. A filter cartridge is provided between the two filter covers, and the outer wall surface of the filter cartridge is provided with holes and grooves. The two ends of the filter cartridge are tightly fitted with the surface of the filter cover, and there is a gap between the outer wall of the filter cartridge and the inner wall of the connecting ring; the holes and grooves inside the filter cover are smaller than the diameter of the semiconductor collector needle, which can effectively prevent the collector needle from slipping out of the filter cartridge during the passivation process, ensuring that the collector needle is stably passivated in the filter cartridge. The handles installed on the surface of the filter cover by bolts make it easy for operators to quickly disassemble and install the filter cover, thereby improving the maintenance and operation efficiency of the equipment. The filter cover is threadedly connected to the guide cover. This connection method not only ensures the stability of the structure, but also facilitates quick disassembly and assembly, and is convenient for cleaning and replacing the filter cartridge. The hole and groove design on the outer wall of the filter cartridge enables the passivation liquid to flow freely inside and outside the filter cartridge.

[0012] Preferably, the centrifugal assembly includes a second motor, the output end of which is connected to a gear key, the gear meshing with the bottom of a transmission disc, the top of which is connected to a gear ring, and the gear ring is welded to the bottom of the shroud, enabling the entire passivation mechanism to rotate rapidly under the drive of the centrifugal assembly. This structure allows the semiconductor collector needles in the filter cartridge to be quickly dried under the action of centrifugal force, removing excess passivation liquid from the surface, thereby improving the drying efficiency of the collector needles, shortening the production cycle, and reducing the passivation layer on the surface of the collector needles to be uniform and free of residual liquid.

[0013] Preferably, an annular convex structure is provided on the outer side of the transmission disc, and the transmission disc is rotatably connected to the inside of the tank body through the convex structure on the outer wall, and teeth are distributed in an annular shape with equal spacing on the inner side of the bottom of the transmission disc, and grooves are distributed on the bottom surface of the transmission disc, and the grooves on the top of the transmission disc are connected to the gear ring, and the grooves on the top of the transmission disc are distributed in an annular shape with equal spacing, and each groove on the top of the transmission disc corresponds to the teeth of a gear ring; so that the gear ring can be firmly connected to the transmission disc, and each groove corresponds to the teeth of a gear ring, which further enhances the stability and synchronization during the transmission process, and ensures that the entire centrifugal assembly can efficiently and smoothly drive the passivation mechanism to rotate during operation.

[0014] The present invention provides a passivation device for processing battery collector pins. It has the following beneficial effects: During operation, the passivation device places the semiconductor collector needle into the filter cartridge of the passivation mechanism, and then injects an appropriate amount of passivation liquid into the tank through the water inlet to ensure that the collector needle is completely immersed in the passivation liquid to start the passivation reaction. At the same time, the controller precisely controls the rotation of the drive motor, and the rotation of the drive motor drives the tank to rotate synchronously. During the slow rotation of the tank, when the internal passivation mechanism flips to the top of the tank, with the help of the rolling ball and the action of gravity, the passivation mechanism can slide smoothly downward along the inner wall of the tank. During this process, the passivation mechanism moves downward rapidly under the gravity of the counterweight block, and the connecting ring and the deflector cover of its sliding assembly squeeze the passivation liquid at the bottom of the tank, causing the passivation liquid to flow upward through the filter cartridge. As the passivation liquid passes through the filter cartridge, it comprehensively and forcefully flushes the surface of the semiconductor collector pins, effectively preventing inadequately soaked dead corners on the pins. It also removes bubbles adhering to the pins, preventing them from obstructing full contact between the passivation liquid and the pins, significantly improving the uniformity and consistency of the passivation effect. As the tank rotates continuously, the passivation mechanism reciprocates within the tank, prompting the passivation liquid to circulate rapidly within the filter cartridge, further enhancing the passivation effect on the pins' surfaces and ensuring efficient and high-quality passivation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side structural schematic diagram of the present invention; Figure 3 This is a structural diagram of the drain valve of the present invention; Figure 4 Schematic diagram of the internal structure of the present invention; Figure 5 For the present invention Figure 4 A in the middle is an enlarged structural diagram; Figure 6 This is a schematic structural diagram of the passivation mechanism of the present invention; Figure 7 This is a schematic diagram of the structure of the counterweight block of the present invention; Figure 8 This is a schematic diagram of the filter cartridge structure of the present invention; Figure 9 Schematic diagram of the gear ring structure of the present invention.

[0016] In the figure, 1. control cabinet; 2. immersion component; 201. tank body; 202. buckle; 203. top cover; 204. liquid inlet valve; 205. drain valve; 3. support frame; 4. drive motor; 5. recovery tank; 6. passivation mechanism; 601. connecting ring; 602. counterweight block; 603. ball; 604. deflector; 605. filter cover; 606. handle; 607. filter cartridge; 608. limit ring; 609. positioning pin; 610. knob; 7. centrifugal component; 701. second motor; 702. gear; 703. transmission disc; 704. gear ring. DETAILED DESCRIPTION

[0017] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0018] Example 1: See also Figure 1-9 , an embodiment of the present invention provides a technical solution: a passivation device for processing battery collector needles, comprising: a control cabinet 1 for controlling the operation of the device; further comprising: an immersion component 2, located on one side of the control cabinet 1, and filled with a passivation liquid; a support frame 3, connected to both sides of the immersion component 2, for supporting the immersion component 2; a drive motor 4, mounted on one end of the top of the support frame 3, for driving the immersion component 2 to rotate; a passivation mechanism 6, located inside the immersion component 2, for placing semiconductor collector needles for passivation treatment; a centrifugal component 7, mounted on the bottom of the immersion component 2, and connected to the passivation mechanism 6 for driving the passivation mechanism 6 to rotate; a recovery tank 5, mounted on the bottom of the support frame 3, for collecting the passivation liquid; The passivation device of this embodiment achieves centralized control of the entire device through a control cabinet 1, which is easy to operate and highly automated. The interior of the immersion component 2 is filled with passivation liquid, providing a passivation environment for the current collector needles. The drive motor 4 can drive the immersion component 2 to rotate, allowing the passivation liquid to flow fully within the immersion component 2, avoiding the formation of dead spots on the surface of the current collector needles. At the same time, the high-speed flow of the passivation liquid effectively removes bubbles attached to the surface of the current collector needles, improving the uniformity of the passivation effect.

[0019] Example 2: See also Figure 1-9The embodiment of the present invention provides a technical solution: a passivation device for processing battery collector needles, wherein the immersion component 2 includes a tank body 201, both sides of the tank body 201 are connected to the output end of the drive motor 4 through a shaft, and the tank body 201 is connected to the external power supply through an electric slip ring, a buckle 202 is installed at one end of the top of the tank body 201, and the tank body 201 is connected to the top cover 203 through the buckle 202, and a liquid inlet valve 204 is installed on the top of the top cover 203, and the liquid inlet valve 204 is used to inject passivation liquid, and a drain valve 205 is installed at the bottom of the tank body 201, and the drain valve 205 is used to discharge the passivation liquid inside the tank body 201; the passivation mechanism 6 includes The sliding assembly and the filter assembly are matched with each other in a sliding manner inside the tank body 201. The sliding assembly slides back and forth inside the tank body 201 under the action of gravity. The filter assembly is installed inside the sliding assembly. The interior of the filter assembly is used to place the semiconductor collector needle. The sliding assembly includes a connecting ring 601. The bottom and top of the connecting ring 601 are equipped with a counterweight 602. The counterweight 602 has a ring-shaped structure. The outer wall of the counterweight 602 is provided with a groove, and the inner wall of the groove of the outer wall of the counterweight 602 is embedded with a ball 603. The ball 603 is in sliding contact with the inner wall of the tank body 201. There are two counterweights 602. 2. A deflector 604 is installed on the surface by screws. There are two deflectors 604, and the two deflectors 604 are trumpet-shaped structures. A limiting ring 608 is provided on the outside of the connecting ring 601. The limiting ring 608 is connected to the outer wall of the connecting ring 601 by bolts. A ring-shaped groove is provided on the outer wall of the limiting ring 608. When the limiting ring 608 is located at one end of the top of the tank body 201, it is engaged with the positioning pin 609. One end of the positioning pin 609 is threadedly connected to the inner wall of the tank body 201, and the other end of the positioning pin 609 is in sliding contact with the outer wall of the tank body 201. A rubber sealing ring is provided on the sliding contact surface between the positioning pin 609 and the tank body 201. There are two symmetrically distributed positioning pins 609, and a knob 610 is welded to one end of the positioning pin 609; the filter assembly includes a filter cover 605, which is provided with two filter covers 605. There are holes and grooves smaller than the diameter of the semiconductor collector needle inside the two filter covers 605. Two handles 606 are installed on the surface of the filter cover 605 by bolts. The filter cover 605 is threadedly connected to the guide cover 604. A filter cartridge 607 is provided between the two filter covers 605. The outer wall surface of the filter cartridge 607 is provided with holes and grooves. Both ends of the filter cartridge 607 are tightly fitted with the surface of the filter cover 605, and there is a gap between the outer wall of the filter cartridge 607 and the inner wall of the connecting ring 601; In this embodiment, the semiconductor current collecting needle is placed inside the filter cartridge 607 of the passivation mechanism 6, and then the passivation liquid is injected into the tank body 201 through the water inlet. The semiconductor current collecting needle is immersed in the passivation liquid for passivation treatment. At the same time, the controller controls the drive motor 4 to rotate. The drive motor 4 can drive the tank body 201 to rotate while the tank body 201 rotates. As the tank body 201 rotates slowly, when the passivation mechanism 6 inside the tank body 201 flips to the top end of the tank body 201, the passivation mechanism 6 inside the tank body 201 can be between the ball 603 and the weight. Under the action of force, it can slide downward inside the tank body 201. When the passivation mechanism 6 moves downward quickly inside the tank body 201 under the action of the counterweight block 602, the connecting ring 601 and the guide cover 604 of the sliding assembly will squeeze the passivation liquid at the bottom of the tank body 201, thereby prompting the passivation liquid at the bottom of the tank body 201 to pass through the filter cartridge 607. When the passivation liquid passes through the inside of the filter cartridge 607, it can flush the surface of the semiconductor collector needle, thereby avoiding the dead corner on the surface of the semiconductor collector needle that is not fully soaked, and at the same time can flush the bubbles attached to the surface of the semiconductor collector needle. Thus, it is prevented that the bubbles on the surface of the semiconductor collector needle affect the passivation effect of the semiconductor collector needle surface. By continuously rotating the tank body 201, the passivation mechanism 6 can continuously slide back and forth inside the tank body 201, so that the passivation liquid can continuously circulate quickly inside the filter cartridge 607, which can greatly improve the passivation effect of the semiconductor collector needle. At the same time, when the tank body 201 rotates, the semiconductor collector needle can continuously roll inside the filter cartridge 607, which is conducive to further avoiding dead angles. When the limiting ring 608 moves to one end close to the positioning pin 609 under the action of gravity, the rotation of the rotary Button 610, thereby making the positioning pin 609 move toward the inside of the tank body 201 under the action of the surface thread, thereby making one end of the positioning pin 609 able to be inserted into the annular groove on the surface of the limiting ring 608, so that the limiting ring 608 can be fixed to one end of the tank body 201, thereby opening the drain valve 205 at the bottom of the tank body 201, so that the passivation liquid inside the tank body 201 can be discharged into the recovery tank 5 for recovery, and then controlling the tank body 201 to rotate to a horizontal angle to open the top cover 203 and the filter cover 605, so that the semiconductor collector needle inside the filter cartridge 607 can be taken out.

[0020] Example 3: See also Figure 1-9, an embodiment of the present invention provides a technical solution: a passivation device for processing battery collector needles, the centrifugal assembly 7 includes a second motor 701, the output end of the second motor 701 is key-connected to the gear 702, the gear 702 is meshed with the bottom of the transmission disc 703, the top of the transmission disc 703 is connected to the gear ring 704, and the gear ring 704 is welded to the bottom of the air guide cover 604; an annular protrusion structure is provided on the outer side of the transmission disc 703, and the transmission disc 703 is rotatably connected to the inside of the tank body 201 through the protrusion structure on the outer wall, the inner side of the bottom of the transmission disc 703 is distributed with teeth in an annular shape with equal spacing, the bottom surface of the transmission disc 703 is distributed with grooves, and the grooves on the top of the transmission disc 703 are connected to the gear ring 704, the grooves on the top of the transmission disc 703 are distributed in an annular shape with equal spacing, and each groove on the top of the transmission disc 703 corresponds to a tooth of the gear ring 704; In this embodiment, when the passivation of the semiconductor collector needle is completed, the drain valve 205 of the immersion component 2 is opened downward. When the interior of the tank body 201 is emptied, the gear ring 704 at the bottom of the deflector 604 can automatically fall on the surface of the transmission disk 703 under the action of gravity, so that the gear ring 704 can engage with the surface of the transmission disk 703, and the transmission disk 703 is driven to rotate by the second motor 701. The transmission disk 703 rotates at high speed and can drive the passivation component to rotate, so that the semiconductor collector needle inside the filter cartridge 607 can generate centrifugal force, so that the excess water inside can be thrown out of the filter cartridge 607, and then pass downward through the filter cover 605 to discharge the drain valve 205, which is conducive to quickly controlling the excess passivation liquid on the surface of the semiconductor collector needle.

[0021] The following is the overall workflow of the passivation device used for battery collector needle processing in this solution: Add passivation liquid: inject an appropriate amount of passivation liquid into the tank 201 of the immersion component 2 through the liquid inlet valve 204. The liquid level must meet the design requirements to ensure that the collector needles can be completely immersed therein.

[0022] Placing the collector needle: Place the semiconductor collector needle to be passivated into the filter cartridge 607 of the passivation mechanism 6.

[0023] Start the drive motor 4: Start the drive motor 4 through the control cabinet 1, and the drive motor 4 drives the tank body 201 of the soaking component 2 to rotate slowly.

[0024] Passivation mechanism 6 slides: As tank 201 rotates, the passivation mechanism 6 slides back and forth inside tank 201 under the action of gravity and balls 603. As the passivation mechanism 6 slides, its connecting ring 601 and flow guide cover 604 squeeze the passivation liquid at the bottom of tank 201, forcing the passivation liquid to pass through the filter cartridge 607, flushing the surface of the current collecting needles, removing bubbles and avoiding dead corners.

[0025] Collector needle tumbling: The rotation of the tank body 201 will also cause the collector needle to tumble continuously in the filter cartridge 607, further improving the uniformity of the passivation effect.

[0026] Continuous passivation: According to the process requirements, maintain the above passivation process for a certain period of time to ensure that the surface of the collector needle is fully passivated.

[0027] Draining the passivation liquid: Open the drain valve 205 at the bottom of the tank body 201 to drain the passivation liquid in the tank body 201 into the recovery tank 5 for recovery and subsequent reuse.

[0028] Starting the centrifugal assembly 7: When the interior of the tank 201 is emptied, the second motor 701 of the centrifugal assembly 7 is started, driving the transmission disc 703 to rotate.

[0029] The filter cartridge 607 rotates: the transmission disc 703 drives the deflector 604 of the passivation mechanism 6 to rotate through the gear ring 704, thereby causing the collector needles in the filter cartridge 607 to generate centrifugal force.

[0030] Draining excess passivation liquid: Under the action of centrifugal force, excess passivation liquid on the surface of the collector needle is thrown out of the filter cartridge 607, discharged through the filter cover 605, and finally discharged from the drain valve 205, completing the drying process of the collector needle.

[0031] Fixing the passivation mechanism 6: After the passivation process is completed, the positioning pin 609 is inserted into the annular groove of the limiting ring 608 by rotating the knob 610 to fix the passivation mechanism 6 on the top of the tank body 201.

[0032] Open the tank body 201: control the tank body 201 to rotate to a horizontal angle, open the top cover 203 and the filter cover 605; take out the passivated and dried collector needles from the filter cartridge 607 for subsequent inspection and packaging.

[0033] Through the above work flow, the passivation device of this scheme can efficiently and evenly passivate the battery collector needle, while realizing the recycling of passivation liquid and rapid drying of collector needle, thus improving production efficiency and product quality. The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all points of view, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0034] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A passivation device for processing battery collector needles, comprising: A control cabinet (1) for controlling the operation of the equipment; It is characterized by further comprising: An immersion component (2) is located on one side of the control cabinet (1) and is filled with a passivation liquid; A support frame (3) connected to both sides of the immersion component (2) and used to support the immersion component (2); A driving motor (4) is mounted on one end of the top of the support frame (3) and is used to drive the soaking assembly (2) to rotate; A passivation mechanism (6), located inside the immersion assembly (2), is used to place semiconductor collector needles for passivation treatment; A centrifugal assembly (7) is installed at the bottom of the soaking assembly (2) and is in driving connection with the passivation mechanism (6) for driving the passivation mechanism (6) to rotate; A recovery tank (5) is installed at the bottom of the support frame (3) and is used to collect the passivation liquid.

2. A passivation device for processing battery collector pins according to claim 1, characterized in that: The immersion assembly (2) comprises a tank body (201), both sides of the tank body (201) are connected to the output end of the drive motor (4) via a shaft, and the tank body (201) is connected to an external power supply via an electric slip ring, a buckle (202) is installed at one end of the top of the tank body (201), the tank body (201) is connected to the top cover (203) via the buckle (202), a liquid inlet valve (204) is installed on the top of the top cover (203), the liquid inlet valve (204) is used to inject passivation liquid, and a drain valve (205) is installed at the bottom of the tank body (201), the drain valve (205) is used to drain the passivation liquid inside the tank body (201).

3. A passivation device for processing battery collector pins according to claim 2, characterized in that: The passivation mechanism (6) comprises a sliding assembly and a filtering assembly. The sliding assembly is in sliding engagement with the interior of the tank body (201). The sliding assembly slides back and forth within the tank body (201) under the action of gravity. The filtering assembly is installed within the sliding assembly. The interior of the filtering assembly is used to place semiconductor collector needles.

4. A passivation device for processing battery collector pins according to claim 3, characterized in that: The sliding assembly includes a connecting ring (601), and a counterweight (602) is installed at the bottom and top of the connecting ring (601). The counterweight (602) has a ring-shaped structure. A groove is provided on the outer wall of the counterweight (602), and a ball (603) is embedded in the groove on the outer wall of the counterweight (602). The ball (603) is in sliding contact with the inner wall of the tank body (201). Two counterweights (602) are provided, and a flow guide (604) is installed on the surface of the two counterweights (602) by screws. Two flow guides (604) are provided, and the two flow guides (604) have a trumpet-shaped structure.

5. A passivation device for processing battery collector pins according to claim 4, characterized in that: A limiting ring (608) is provided on the outside of the connecting ring (601), and the limiting ring (608) is connected to the outer wall of the connecting ring (601) by bolts. The outer wall of the limiting ring (608) is provided with a ring-shaped groove. When the limiting ring (608) is located at one end of the top of the tank body (201), it is engaged with the positioning pin (609). One end of the positioning pin (609) is threadedly connected to the inner wall of the tank body (201), and the other end of the positioning pin (609) is in sliding contact with the outer wall of the tank body (201), and a rubber sealing ring is provided on the sliding contact surface between the positioning pin (609) and the tank body (201). Two positioning pins (609) are symmetrically distributed, and a knob (610) is welded to one end of the positioning pin (609).

6. The passivation device for processing battery collector pins according to claim 5, characterized in that: The filter assembly includes a filter cover (605), two filter covers (605) are provided, and the inside of the two filter covers (605) has a hole groove smaller than the diameter of the semiconductor collector needle. Two handles (606) are installed on the surface of the filter cover (605) by bolts. The filter cover (605) is threadedly connected to the guide cover (604). A filter cartridge (607) is provided between the two filter covers (605), and the outer wall surface of the filter cartridge (607) is provided with a hole groove. Both ends of the filter cartridge (607) are tightly fitted with the surface of the filter cover (605), and there is a gap between the outer wall of the filter cartridge (607) and the inner wall of the connecting ring (601).

7. A passivation device for processing battery collector pins according to claim 6, characterized in that: The centrifugal assembly (7) includes a second motor (701), an output end of the second motor (701) is key-connected to a gear (702), the gear (702) is meshedly connected to the bottom of a transmission disc (703), the top of the transmission disc (703) is connected to a gear ring (704), and the gear ring (704) is welded to the bottom of the deflector (604).

8. The passivation device for processing battery collector pins according to claim 7, characterized in that: The outer side of the transmission disc (703) is provided with an annular protrusion structure, and the transmission disc (703) is rotatably connected to the inside of the tank body (201) through the protrusion structure on the outer wall. The inner side of the bottom of the transmission disc (703) is provided with teeth distributed in an annular shape at equal intervals. The bottom surface of the transmission disc (703) is provided with grooves, and the grooves on the top of the transmission disc (703) are connected to the tooth ring (704). The grooves on the top of the transmission disc (703) are distributed in an annular shape at equal intervals, and each groove on the top of the transmission disc (703) corresponds to a tooth of the tooth ring (704).

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