A passivation device for battery collector pin processing

Abstract

The application discloses a passivation device for battery current collecting needle processing and relates to the technical field of current collecting needle processing.The passivation device comprises a control cabinet used for controlling equipment work; further comprises a soaking assembly located on one side of the control cabinet and filled with passivation liquid in the inside; and a supporting frame connected with both sides of the soaking assembly and used for supporting the soaking assembly; when the passivation mechanism in the inside is turned over 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 ball bearings and the gravity effect; when the passivation liquid passes through the filter cartridge, the surface of the semiconductor current collecting needle can be comprehensively and powerfully washed, so that the dead angle area of the surface of the current collecting needle which is not sufficiently soaked can be effectively avoided, the bubbles attached to the surface of the current collecting needle can be removed, the bubbles are prevented from hindering the full contact of the passivation liquid with the surface of the current collecting needle, and therefore the uniformity and consistency of the passivation effect are remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of current collecting needle processing, in particular to a passivation device for battery current collecting needle processing. BACKGROUND

[0002] In the field of batteries, current collecting needles are key components that connect electrodes to external circuits. In recent years, semiconductor material current collecting needles have gradually become a research hotspot. Semiconductor materials such as graphite, carbon nanotubes, and metal oxide semiconductors have adjustable electrical conductivity, excellent chemical stability, and mechanical properties. Through doping and surface treatment, their electrical and chemical properties can be optimized to make them more suitable for use in battery environments.

[0003] Passivation treatment technology for current collecting needles is also part of the prior art. The purpose is to form a protective film on the surface of the current collecting needle. Passivation treatment can effectively prevent the semiconductor material from oxidizing, corroding, or reacting adversely with the electrolyte during processing and use.

[0004] Currently, common passivation devices usually immerse the current collecting needle in a passivation solution for treatment. Although this traditional immersion method can allow the surface of the current collecting needle to come into contact with the passivation solution, it has the following problems: First, the current collecting needle is in a stationary state in the passivation solution, which leads to insufficient flow of the passivation solution and can cause dead angles on the surface of the current collecting needle, preventing some areas from being fully immersed and affecting the uniformity of the passivation effect. Second, during the passivation process, bubbles may adhere to the surface of the current collecting needle, which can hinder the full contact between the passivation solution and the surface of the current collecting needle, thereby affecting the passivation effect.

[0005] Therefore, the present application provides a passivation device for battery current collecting needle processing, which can fully passivate the surface of the current collecting needle and reduce the influence of surface bubble adhesion. SUMMARY

[0006] To overcome the deficiencies of the prior art, the present application provides a passivation device for battery current collecting needle processing, which solves the problems of the uniformity of the passivation effect and bubble removal of the existing passivation device.

[0007] To achieve the above purpose, the present application realizes the following technical solution: a passivation device for battery current collecting needle processing, comprising:

[0008] A control cabinet for controlling the operation of the device;

[0009] Further comprising:

[0010] An immersion assembly located on one side of the control cabinet, which is filled with a passivation solution inside;

[0011] A support frame connected to both sides of the immersion assembly for supporting the immersion assembly;

[0012] A driving motor is installed at one end of the top of the support frame to drive the soaking assembly to rotate;

[0013] A passivation mechanism is located inside the soaking assembly to place the semiconductor collector pins for passivation treatment;

[0014] A centrifugal assembly is installed at the bottom of the soaking assembly and is in transmission connection with the passivation mechanism to drive the passivation mechanism to rotate;

[0015] A recovery tank is installed at the bottom of the support frame to collect the passivation liquid.

[0016] Preferably, the soaking assembly comprises a tank body, both sides of the tank body are connected with the output end of the driving motor through a shaft, and the tank body is connected with an external power source through an electric slip ring, a buckle is installed at one end of the top of the tank body, the tank body is connected with a top cover through the buckle, a liquid inlet valve is installed at the top of the top cover, the liquid inlet valve is used to inject the 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 with the output end of the driving motor, the rotation of the tank body can be realized, thereby driving the passivation liquid and the collector pins inside to move, so that the passivation liquid can flow fully, and the dead angle on the surface of the collector pins can be avoided, and the centrifugal force and the liquid flow generated by the rotation can effectively remove the bubbles attached to the surface of the collector pins, thereby improving the uniformity of the passivation effect. The tank body is connected with the external power source through the electric slip ring, so that stable power supply can be ensured during the rotation process, and normal operation of the equipment can be ensured.

[0017] Preferably, the passivation mechanism comprises a sliding assembly and a filtering assembly, the sliding assembly is in sliding fit with the inside of the tank body, the sliding assembly reciprocally slides in the inside of the tank body under the action of gravity, the filtering assembly is installed inside the sliding assembly, and the inside of the filtering assembly is used to place the semiconductor collector pins; by the sliding fit of the sliding assembly with the inside 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 in the inside of the tank body, thereby driving the semiconductor collector pins in the filtering assembly to move continuously in the passivation liquid. This movement mode can effectively avoid the formation of the dead angle of the passivation liquid on the surface of the collector pins, ensure that the passivation liquid can fully contact each part of the collector pins, and improve the uniformity and consistency of the passivation effect.

[0018] Preferably, the sliding assembly comprises a connecting ring, the bottom and top of the connecting ring are provided with counterweights, the counterweights are in the shape of a ring, grooves are formed in the outer wall of the counterweights, and balls are embedded in the grooves, the balls are in sliding contact with the inner wall of the tank, the counterweights are provided in two, the surfaces of the two counterweights are provided with fairings through screws, the fairings are provided in two, and the two fairings are in the shape of a horn; the counterweights provide stable gravity for the sliding assembly, ensuring smooth reciprocating sliding in the tank, while maintaining balance and stability during movement, avoiding the influence of shaking or tilting on passivation effect; the balls are embedded in the grooves in the outer wall of the counterweights and are in sliding contact with the inner wall of the tank, which significantly reduces the friction between the sliding assembly and the inner wall of the tank, enabling the sliding assembly to move more flexibly in the tank; the fairings are installed on the surfaces of the two counterweights through screws, and the horn-shaped structure can effectively guide the flow direction of the passivation liquid, enabling the passivation liquid to uniformly wash the surface of the current collecting needle when passing through the filter cartridge.

[0019] Preferably, a limiting ring is arranged outside the connecting ring, the limiting ring is connected with the outer wall of the connecting ring through bolts, a ring-shaped groove is formed in the outer wall of the limiting ring, the limiting ring is in clamping connection with the positioning pin when located at one end of the top of the tank, one end of the positioning pin is threadedly connected with the inner wall of the tank, the other end of the positioning pin is in sliding contact with the outer wall of the tank, and a rubber sealing ring is arranged on the sliding contact surface between the positioning pin and the tank, the positioning pins are symmetrically distributed in two, and a knob is welded to one end of the positioning pin; the limiting ring is connected with the outer wall of the connecting ring through bolts, and the ring-shaped groove in the outer wall enables the limiting ring to be in clamping connection with the positioning pin, and this structure can fix the sliding assembly on the top of the tank when needed, preventing it from sliding due to gravity during rotation of the tank.

[0020] Preferably, the filter assembly comprises filter covers, the filter covers are provided in two, the interiors of the filter covers are provided with holes smaller than the diameter of the semiconductor current collecting needles, two handles are installed on the surfaces of the filter covers through bolts, the filter covers are threadedly connected with the fairings, a filter cartridge is arranged between the two filter covers, the outer wall of the filter cartridge is provided with a hole, and the two ends of the filter cartridge are tightly attached to the surfaces of the filter covers, and there is a gap between the outer wall of the filter cartridge and the inner wall of the connecting ring; the hole in the interior of the filter cover is smaller than the diameter of the semiconductor current collecting needle, which can effectively prevent the current collecting needles from sliding out of the filter cartridge during passivation, ensuring that the current collecting needles are stably passivated in the filter cartridge. The handles installed on the surfaces of the filter covers through bolts facilitate quick disassembly and installation of the filter covers by the operators, improving the maintenance and operation efficiency of the equipment. The filter covers are threadedly connected with the fairings, which not only ensures the stability of the structure, but also facilitates quick disassembly and installation, making it convenient to clean and replace the filter cartridge. The hole design of the outer wall of the filter cartridge enables the passivation liquid to flow freely in and out of the filter cartridge.

[0021] Preferably, the centrifugal assembly comprises a second motor, the output end of the second motor is connected with a gear key, the gear is connected with the bottom of a transmission disc, the top of the transmission disc is connected with a gear ring, and the gear ring is welded to the bottom of a flow guide cover; so that the entire passivation mechanism can be quickly rotated under the drive of the centrifugal assembly. This structure can make the semiconductor current collecting needle in the filter cartridge quickly spin dry under the action of centrifugal force, remove the excess passivation liquid on the surface, thereby improving the drying efficiency of the current collecting needle, shortening the production cycle, and reducing the uniformity and residue of the passivation layer on the surface of the current collecting needle.

[0022] Preferably, an annular protrusion structure is arranged on the outer side of the transmission disc, the transmission disc is rotatably connected with the inside of the tank body through the outer wall protrusion structure, the bottom of the transmission disc is internally and annularly and equidistantly provided with mesh teeth, the bottom surface of the transmission disc is provided with grooves, the top of the transmission disc is connected with a gear ring through the grooves, the top grooves of the transmission disc are annularly and equidistantly distributed, and each top groove of the transmission disc corresponds to the mesh teeth of a gear ring; so that the gear ring can be firmly connected on the transmission disc, and each top groove corresponds to the mesh teeth of a gear ring, further enhancing the stability and synchronism in the transmission process, and ensuring that the entire centrifugal assembly can efficiently and stably drive the passivation mechanism to rotate during operation.

[0023] The application provides a passivation device for battery current collecting needle processing.

[0024] During operation of the passivation device, the semiconductor current collecting needle is placed in the filter cartridge of the passivation mechanism, then an appropriate amount of passivation liquid is injected into the tank body through the water inlet, and the current collecting needle is completely immersed in the passivation liquid to start the passivation reaction. At the same time, the controller accurately controls the rotating action of the drive motor, and the rotation of the drive motor drives the tank body to rotate synchronously. During the slow rotation of the tank body, when the passivation mechanism inside the tank body is turned over to the top of the tank body, the passivation mechanism can smoothly slide down along the inner wall of the tank body with the aid of the rolling of the ball and the action of gravity. In this process, the passivation mechanism quickly moves downward under the gravity traction of the counterweight, and the connecting ring of the sliding assembly and the flow guide cover extrude the passivation liquid at the bottom of the tank body, so that the passivation liquid flows upward through the filter cartridge. When the passivation liquid passes through the filter cartridge, it can fully and effectively wash the surface of the semiconductor current collecting needle, effectively avoid the occurrence of dead angle areas on the surface of the current collecting needle which are not fully soaked, and remove the bubbles attached to the surface of the current collecting needle, thereby preventing the bubbles from hindering the full contact between the passivation liquid and the surface of the current collecting needle, and significantly improving the uniformity and consistency of the passivation effect. With the continuous rotation of the tank body, the passivation mechanism realizes reciprocating sliding in the tank body, which promotes the continuous and rapid circulation of the passivation liquid in the filter cartridge, further enhances the passivation effect on the surface of the current collecting needle, and ensures the efficiency and quality of the passivation treatment. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the application.

[0026] Figure 2 It is a schematic view of the side view structure of the present application;

[0027] Figure 3 It is a schematic view of the drain valve structure of the present application;

[0028] Figure 4 It is a schematic view of the internal structure of the present application;

[0029] Figure 5 It is a schematic view of the internal structure of the present application Figure 4 It is a schematic view of the internal structure of the present application

[0030] Figure 6 It is a schematic view of the internal structure of the present application

[0031] Figure 7 It is a schematic view of the internal structure of the present application

[0032] Figure 8 It is a schematic view of the internal structure of the present application

[0033] Figure 9 It is a schematic view of the internal structure of the present application

[0034] In the figure, 1, control cabinet; 2, soaking assembly; 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; 603, ball; 604, fairing; 605, filter cover; 606, handle; 607, filter cartridge; 608, limiting ring; 609, positioning pin; 610, knob; 7, centrifugal assembly; 701, second motor; 702, gear; 703, transmission disc; 704, gear ring. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0036] Embodiment 1:

[0037] Please refer to Figures 1-9The embodiment of the present application provides a technical scheme: a passivation device for battery current collecting needle processing, comprising: a control cabinet 1 for controlling equipment work; further comprising: a soaking assembly 2 located at one side of the control cabinet 1, which is filled with passivation liquid inside; a support frame 3 connected with both sides of the soaking assembly 2 for supporting the soaking assembly 2; a driving motor 4 installed at one end of the top of the support frame 3 for driving the soaking assembly 2 to rotate; a passivation mechanism 6 located inside the soaking assembly 2 for placing semiconductor current collecting needles for passivation treatment; a centrifugal assembly 7 installed at the bottom of the soaking assembly 2 and transmissionally connected with the passivation mechanism 6 for driving the passivation mechanism 6 to rotate; and a recovery tank 5 installed at the bottom of the support frame 3 for collecting the passivation liquid.

[0038] The passivation device realizes centralized control of the whole equipment through the control cabinet 1, is simple to operate and has high automation degree. The soaking assembly 2 is filled with passivation liquid inside, provides a passivation environment for the current collecting needle, the driving motor 4 can drive the soaking assembly 2 to rotate, makes the passivation liquid fully flow in the soaking assembly 2, avoids the formation of dead angles on the surface of the current collecting needle, effectively removes bubbles attached to the surface of the current collecting needle through high-speed flow of the passivation liquid, and improves the uniformity of the passivation effect.

[0039] Embodiment 2:

[0040] Please refer to Figures 1-9The embodiment of the present application provides a technical scheme: a passivation device for battery current collecting needle processing, the soaking assembly 2 comprises a tank body 201, the tank body 201 is connected with the output end of a driving motor 4 through a shaft on both sides, and the tank body 201 is connected with an external power supply through 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 with a top cover 203 through the buckle 202, a liquid inlet valve 204 is installed at the top of the top cover 203, the liquid inlet valve 204 is used for injecting passivation liquid, a drain valve 205 is installed at the bottom of the tank body 201, and the drain valve 205 is used for discharging the passivation liquid in the tank body 201; the passivation mechanism 6 comprises a sliding assembly and a filtering assembly, the sliding assembly is in sliding fit with the inside of the tank body 201, the sliding assembly reciprocates in the tank body 201 under the action of gravity, the filtering assembly is installed in the sliding assembly, and the inside of the filtering assembly is used for placing a semiconductor current collecting needle; the sliding assembly comprises a connecting ring 601, counterweights 602 are installed at the bottom and the top of the connecting ring 601, the counterweights 602 are in the form of annular structure, grooves are formed in the outer walls of the counterweights 602, and balls 603 are embedded in the grooves in the outer walls of the counterweights 602, the balls 603 are in sliding contact with the inner walls of the tank body 201, the counterweights 602 are provided in two, the surfaces of the two counterweights 602 are provided with flow deflectors 604 through screws, the flow deflectors 604 are provided in two, and the two flow deflectors 604 are in the form of horn structure; a limiting ring 608 is arranged outside the connecting ring 601, the limiting ring 608 is connected with the outer wall of the connecting ring 601 through a bolt, an annular groove is formed in the outer wall of the limiting ring 608, the limiting ring 608 is in clamping connection with a positioning pin 609 when located at one end of the top of the tank body 201, one end of the positioning pin 609 is threadedly connected with the inner wall of the tank body 201, 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 arranged on the sliding contact surface between the positioning pin 609 and the tank body 201, the positioning pin 609 is symmetrically distributed in two, and a knob 610 is welded at one end of the positioning pin 609; the filtering assembly comprises filter covers 605, the filter covers 605 are provided in two, the two filter covers 605 are internally provided with holes smaller than the diameter of the semiconductor current collecting needle, two handles 606 are installed on the surfaces of the filter covers 605 through bolts, the filter covers 605 are threadedly connected with the flow deflectors 604, a filter cartridge 607 is arranged between the two filter covers 605, the filter cartridge 607 is provided with holes on the outer wall surface, the filter cartridge 607 is tightly attached to the surfaces of the filter covers 605 at both ends, and a gap exists between the outer wall of the filter cartridge 607 and the inner wall of the connecting ring 601.

[0041] In this embodiment, by placing the semiconductor collector needle into the filter cartridge 607 inside the passivation mechanism 6, and then injecting passivation liquid into the inside of the tank body 201 through the water inlet, the passivation treatment is carried out by immersing the semiconductor collector needle in the passivation liquid, and the controller controls the driving motor 4 to rotate, and the driving motor 4 rotates to drive the tank body 201 to rotate, and with the slow rotation of the tank body 201, when the passivation mechanism 6 inside the tank body 201 is turned to one end of the top of the tank body 201, the passivation mechanism 6 inside the tank body 201 can slide downward under the action of the ball 603 and gravity, and when the passivation mechanism 6 moves downward quickly under the action of the counterweight 602 inside the tank body 201, the connecting ring 601 of the sliding assembly and the flow guide 604 will extrude the passivation liquid at the bottom of the tank body 201, so that the passivation liquid at the bottom of the tank body 201 can pass through the filter cartridge 607, and the passivation liquid can flush the surface of the semiconductor collector needle when passing through the inside of the filter cartridge 607, so as to avoid the existence of dead angle on the surface of the semiconductor collector needle and to avoid the existence of dead angle on the surface of the semiconductor collector needle. At the same time, it can flush the bubbles attached to the surface of the semiconductor collector needle, so as to avoid the influence of the bubbles on the surface of the semiconductor collector needle on the passivation effect of the surface of the semiconductor collector needle. By continuously rotating the tank body 201, the passivation mechanism 6 can continuously reciprocate inside the tank body 201, and the passivation liquid can continuously flow 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 tumble inside the filter cartridge 607, which is conducive to further avoiding dead angle, when the limiting ring 608 moves to one end close to the positioning pin 609 under the action of gravity, by rotating the knob 610, the positioning pin 609 can move into the tank body 201 under the action of the threads on the surface, and then one end of the positioning pin 609 can be inserted into the annular groove on the surface of the limiting ring 608, so that the limiting ring 608 can be fixed at one end of the tank body 201, and then the drain valve 205 at the bottom of the tank body 201 is opened, so that the passivation liquid inside the tank body 201 can be discharged into the recovery tank 5 for recovery, and then the tank body 201 is rotated 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.

[0042] Embodiment 3:

[0043] Please refer to Figures 1-9The embodiment of the application provides a technical scheme: a passivation device for battery current collecting needle processing, a centrifugal assembly 7 comprises a second motor 701, the second motor 701 output is connected with a gear 702, the gear 702 is connected with a transmission disc 703 bottom, the transmission disc 703 top is connected with a gear ring 704, the gear ring 704 is welded on the bottom of the flow guide cover 604;The transmission disc 703 outside is provided with annular convex structure, and the transmission disc 703 is rotatably connected with the inside of the tank body 201 through the outer wall convex structure, the transmission disc 703 bottom inside is annularly and equidistantly distributed with mesh teeth, the transmission disc 703 bottom surface is distributed with grooves, and the transmission disc 703 top groove gear ring 704 is connected, the transmission disc 703 top groove is annularly and equidistantly distributed, and each groove of the transmission disc 703 top corresponds to the mesh teeth of a gear ring 704;

[0044] When the semiconductor current collecting needle passivation is finished, the drain valve 205 of the soaking assembly 2 is opened downward, when the inside of the tank body 201 is emptied, the gear ring 704 at the bottom of the flow guide cover 604 can automatically fall on the surface of the transmission disc 703 under the action of gravity, and then the gear ring 704 can be engaged with the surface of the transmission disc 703, the transmission disc 703 is driven to rotate by the second motor 701, and the transmission disc 703 can drive the passivation assembly to rotate at high speed, and then the semiconductor current collecting needle in the filter cartridge 607 can generate centrifugal force, so that the excess water in the inside can be thrown out of the filter cartridge 607, and then pass through the filter cover 605 to the drain valve 205, which is beneficial to the rapid drying of the excess passivation liquid on the surface of the semiconductor current collecting needle.

[0045] The following is the overall working process of the passivation device for battery current collecting needle processing in the present scheme:

[0046] Add passivation liquid: the inside of the tank body 201 of the soaking assembly 2 is injected with an appropriate amount of passivation liquid through the liquid inlet valve 204, and the liquid level needs to reach the design requirement, so as to ensure that the current collecting needle can be completely soaked therein.

[0047] Place the current collecting needle: the semiconductor current collecting needle to be passivated is placed in the filter cartridge 607 of the passivation mechanism 6.

[0048] Start the drive motor 4: the drive motor 4 is started by the control cabinet 1, and the drive motor 4 drives the tank body 201 of the soaking assembly 2 to rotate slowly.

[0049] The passivation mechanism 6 slides: with the rotation of the tank body 201, the passivation mechanism 6 reciprocally slides in the inside of the tank body 201 under the action of gravity and the ball 603. When the passivation mechanism 6 slides, the connecting ring 601 and the flow guide cover 604 will extrude the passivation liquid at the bottom of the tank body 201, so as to make the passivation liquid pass through the filter cartridge 607, wash the surface of the current collecting needle, remove the air bubbles and avoid dead angles.

[0050] The rotating of the can body 201 also causes the current collecting needle to continuously roll in the filter cylinder 607, further improving the uniformity of the passivation effect.

[0051] Continuous passivation: according to the process requirements, maintain the above passivation process for a certain time to ensure that the surface of the current collecting needle is fully passivated.

[0052] Discharge passivation liquid: open the drain valve 205 at the bottom of the can body 201 to discharge the passivation liquid in the can body 201 to the recovery tank 5 for recycling for subsequent reuse.

[0053] Start the centrifugal assembly 7: after the inside of the can body 201 is emptied, the second motor 701 of the centrifugal assembly 7 is started to drive the transmission disc 703 to rotate.

[0054] Rotating the filter cylinder 607: the transmission disc 703 drives the flow guide cover 604 of the passivation mechanism 6 to rotate through the gear ring 704, and then causes the current collecting needle in the filter cylinder 607 to generate centrifugal force.

[0055] Spin dry excess passivation liquid: under the action of centrifugal force, the excess passivation liquid on the surface of the current collecting needle is spun out of the filter cylinder 607, discharged through the filter cover 605, and finally discharged from the drain valve 205, completing the drying process of the current collecting needle.

[0056] Fix the passivation mechanism 6: when the passivation process is completed, rotate the knob 610 to make the positioning pin 609 inserted into the annular groove of the limiting ring 608, and fix the passivation mechanism 6 on the top of the can body 201.

[0057] Open the can body 201: control the can body 201 to rotate to a horizontal angle, open the top cover 203 and the filter cover 605; take out the current collecting needle after passivation treatment and drying from the filter cylinder 607 for subsequent inspection and packaging.

[0058] Through the above workflow, the passivation device of the present scheme can efficiently and uniformly passivate the battery current collecting needle, realize recycling of the passivation liquid and rapid drying of the current collecting needle, and improve the production efficiency and product quality.

[0059] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0060] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. A passivation device for battery current collector needle processing, comprising: a control cabinet (1) for controlling the operation of the device; characterized in that it further comprises: a soaking assembly (2) located on one side of the control cabinet (1), filled with passivation liquid inside; a support frame (3) connected to both sides of the soaking assembly (2) for supporting the soaking assembly (2); a drive motor (4) installed at one end of the top of the support frame (3) for driving the soaking assembly (2) to rotate; a passivation mechanism (6) located inside the soaking assembly (2) for placing semiconductor current collector needles for passivation treatment; a centrifugal assembly (7) installed at the bottom of the soaking assembly (2) and drivingly connected to the passivation mechanism (6) for driving the passivation mechanism (6) to rotate; a recovery tank (5) installed at the bottom of the support frame (3) for collecting passivation liquid; the passivation mechanism (6) comprises a sliding assembly and a filter assembly, the sliding assembly is in sliding fit with the inside of the tank body (201), the sliding assembly reciprocates inside the tank body (201) under the action of gravity, the filter assembly is installed inside the sliding assembly, and the inside of the filter assembly is used for placing semiconductor current collector needles; the sliding assembly comprises a connecting ring (601), counterweights (602) are installed at the bottom and top of the connecting ring (601), the counterweights (602) are in the shape of a ring, grooves are formed in the outer walls of the counterweights (602), and balls (603) are embedded in the grooves in the outer walls of the counterweights (602), the balls (603) are in sliding contact with the inner walls of the tank body (201), the counterweights (602) are provided in two, and flow deflectors (604) are installed on the surfaces of the two counterweights (602) by screws, the flow deflectors (604) are provided in two, and the two flow deflectors (604) are in the shape of a horn; a limiting ring (608) is arranged outside the connecting ring (601), the limiting ring (608) is connected to the outer wall of the connecting ring (601) by bolts, an annular groove is formed in the outer wall of the limiting ring (608), the limiting ring (608) is in clamping connection with a positioning pin (609) when located at one end of the top of the tank body (201), one end of the positioning pin (609) is threadedly connected to the inner wall of the tank body (201), 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 arranged on the sliding contact surface between the positioning pin (609) and the tank body (201), the positioning pin (609) is symmetrically distributed in two, and a knob (610) is welded to one end of the positioning pin (609). The filter assembly includes filter cover (605), two filter cover (605) inside has a hole slot less than the diameter of semiconductor collector pin, the surface of filter cover (605) is provided with two handles (606) by bolt, filter cover (605) is connected with the fairing (604) by screw thread, two filter cover (605) between filter cartridge (607) is provided, the outer wall surface of filter cartridge (607) is provided with hole slot, the both ends of filter cartridge (607) are closely combined with the surface of filter cover (605), and there is a gap between the outer wall of filter cartridge (607) and the inner wall of connecting ring (601).

2. The passivation device for battery pin collection according to claim 1, characterized in that: The soaking assembly (2) includes a tank body (201), both sides of the tank body (201) are connected with the output end of the driving motor (4) through a shaft, and the tank body (201) is connected with the external power supply through an electric slip ring, one end of the top of the tank body (201) is provided with a buckle (202), the tank body (201) is connected with the top cover (203) through the buckle (202), the top of the top cover (203) is provided with a liquid inlet valve (204), the liquid inlet valve (204) is used for injecting passivation liquid, the bottom of the tank body (201) is provided with a drain valve (205), the drain valve (205) is used for discharging passivation liquid in the tank body (201).

3. The passivation device for battery pin collection according to claim 2, characterized in that: The centrifugal assembly (7) includes a second motor (701), the output end of the second motor (701) is connected with a gear (702), the gear (702) is connected with the bottom of a transmission disc (703), the top of the transmission disc (703) is connected with a gear ring (704), and the gear ring (704) is welded to the bottom of the fairing (604).

4. The passivation device for battery pin collection according to claim 3, characterized in that: The outer side of the transmission disc (703) is provided with an annular convex structure, and the transmission disc (703) is rotatably connected with the inside of the tank body (201) through the convex structure of the outer wall, the inside of the bottom of the transmission disc (703) is annularly and equidistantly distributed with mesh teeth, the surface of the bottom of the transmission disc (703) is distributed with grooves, the top of the transmission disc (703) is connected with the gear ring (704) through the grooves, the top of the transmission disc (703) is annularly and equidistantly distributed with grooves, and each groove of the top of the transmission disc (703) corresponds to the mesh teeth of a gear ring (704).

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