Cylindrical lithium battery discharging device

Abstract

The utility model belongs to the technical field of regeneration of useful parts of waste storage batteries, and particularly relates to a cylindrical lithium battery discharging device which comprises a discharging platform, a sliding groove is formed in the platform in the length direction, and a sliding seat is arranged in the sliding groove in a sliding fit mode. A stepped hole for bearing a battery is vertically formed in the sliding seat in a penetrating manner; the platform comprises two side plates and a top plate, and the sliding groove penetrates through the top plate; a hollow discharge bin is arranged on the top plate in a protruding mode, the two ends of the sliding groove extend out of the discharge bin, and channel openings are formed in the side walls of the two ends of the discharge bin. An upper discharging guide rod capable of vertically stretching and retracting is arranged in the discharging bin, a lower discharging guide rod capable of vertically stretching and retracting is arranged below the top plate, the lower discharging guide rod is located under the upper discharging guide rod, and the free ends of the upper discharging guide rod and the lower discharging guide rod are opposite; and the upper and lower discharge guide rods are electrically connected with a discharge instrument respectively. The device is suitable for being applied to an automatic production line under the working condition of a vertical manipulator, residual electricity of the battery is released in the discharging bin, use is reliable, and the process is convenient and safe.

Description

Technical Field

[0001] The utility model belongs to the technical field of regenerating useful parts of waste batteries, and specifically relates to a cylindrical lithium battery discharge device. Background Art

[0002] Cylindrical lithium-ion batteries are widely used. When the battery life is approaching the end of its life, the cylindrical lithium batteries need to be scrapped or recycled. During the processing, the waste batteries are tested and classified, and recycling methods are formulated according to different levels. Good products can be directly reused on electrical appliances with lower power requirements (downgraded utilization), and defective products are decomposed to recover valuable elements for reuse. The applicant has designed a cylindrical lithium battery pre-disassembly detection device as disclosed in publication number CN117890801A, which can facilitate the automatic detection of the comprehensive performance of cylindrical lithium batteries, thereby facilitating the distinction between good and defective products, and also facilitates the matching vertical manipulator to grab the cylindrical lithium battery, so that the whole process can be automatically implemented through the controller. For the detected defective products, before sending them to the subsequent process for disassembly, it is necessary to release the remaining battery power to avoid safety accidents such as fire and explosion during the disassembly process. The applicant has further designed a matching battery discharge device, which is suitable for the grabbing of the vertical manipulator and can be conveniently used in the matching automatic production line process.

[0003] The prior art also involves some equipment that can discharge lithium batteries, such as the solutions disclosed in CN207781839U and CN218331881U, which are relatively independent and suitable for corresponding equipment and working conditions. When applied to other production line processes, adaptive optimization and improvement are required. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a cylindrical lithium battery discharge device to avoid the problem that the existing discharge device is inconvenient to use in an automatic production line with vertical mechanical manual conditions, thereby achieving the effect of improving applicability and reliable use.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A cylindrical lithium battery discharge device comprises a discharge platform, wherein the discharge platform is provided with a sliding groove extending along the length direction of the discharge platform, and a sliding seat for carrying the battery is slidably matched in the sliding groove; a step hole is vertically penetrated through the sliding seat, and the step hole comprises a large hole section and a small hole section below the large hole section so as to vertically carry the battery;

[0007] The discharge platform comprises two side plates facing each other vertically and a top plate horizontally connected to the upper ends of the two side plates, a sliding groove is provided through the top plate and is located between the two side plates; a hollow discharge chamber is provided on the middle part of the upper surface of the top plate, the inner cavity of the discharge chamber is connected with the sliding groove, the two ends of the sliding groove respectively extend beyond the side walls at the two ends of the discharge chamber, and the side walls at the two ends of the discharge chamber are respectively provided with passage openings corresponding to the two ends of the sliding groove so that the sliding seat carrying the battery can enter and exit;

[0008] A vertically retractable upper discharge guide rod is provided in the discharge chamber, and a vertically retractable lower discharge guide rod is provided below the top plate. The lower discharge guide rod is located directly below the upper discharge guide rod, and the free end of the lower discharge guide rod is opposite to the free end of the upper discharge guide rod.

[0009] The upper discharge guide rod and the lower discharge guide rod are electrically connected to the discharge instrument respectively.

[0010] To further improve the above technical solution, when the sliding groove carrying the battery moves between the upper discharge guide rod and the lower discharge guide rod, the upper discharge guide rod extends downward to make conductive contact with one end of the battery, and the lower discharge guide rod extends upward to make conductive contact with the other end of the battery through the small hole section.

[0011] Furthermore, an upper cylinder is provided on the top wall of the discharge chamber, a telescopic rod of the upper cylinder slides downward and penetrates the top wall of the discharge chamber, and the upper discharge guide rod is insulated and connected to the free end of the telescopic rod of the upper cylinder;

[0012] A mounting plate is connected between the two side plates, a lower cylinder is arranged on the lower surface of the mounting plate, a telescopic rod of the lower cylinder slides upward and penetrates the mounting plate, and the lower discharge guide rod is insulated and connected to the free end of the telescopic rod of the lower cylinder.

[0013] Furthermore, a connection hole is formed through the side wall of either side of the discharge chamber, and the discharge instrument is installed and connected in the connection hole. The inner end of the discharge instrument extends into the discharge chamber and is respectively connected to a rigid upper electrode terminal and a lower electrode terminal.

[0014] The free end of the upper discharge guide rod slides through the upper electrode terminal and is conductively connected to the upper electrode terminal;

[0015] The lower electrode terminal passes through the through hole on the top plate and extends between the top plate and the mounting plate, and the free end of the lower discharge guide rod slides through the lower electrode terminal and is conductively connected with the lower electrode terminal.

[0016] Furthermore, the outer wall of the upper discharge guide rod is raised with a circle of upper convex edge, and an upper spiral compression spring is arranged between the upper convex edge and the upper electrode end, and the upper spiral compression spring is compressed when the upper discharge guide rod is extended downward;

[0017] The outer wall of the lower discharge guide rod is convex with a circle of lower convex edge, and a lower spiral compression spring is arranged between the lower convex edge and the lower electrode end; when the lower discharge guide rod is extended upward, the lower spiral compression spring is compressed.

[0018] Furthermore, the sliding groove is oval in shape, and a circle of bosses is provided at the lower part of the inner wall of the sliding groove to form a step. The width of the sliding seat corresponds to the sliding groove, and sliding drive motors are provided on both sides.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] The cylindrical lithium battery discharge device of the utility model is suitable for application in an automatic production line with vertical mechanical hand conditions. On a horizontal discharge platform, a placement station, a discharge station and a removal station are formed on different length sections of the sliding groove respectively. When the sliding seat moves to the placement station outside the discharge bin, the vertical robot vertically places the grasped cylindrical lithium battery in the step hole of the sliding seat; the sliding seat moves to the discharge station, the upper discharge guide rod extends downward to be in conductive contact with the positive electrode of the battery, and the lower discharge guide rod extends upward to be in conductive contact with the negative electrode of the battery, and the battery discharges the residual electricity in the discharge bin through the conductively connected discharge instrument; finally, the sliding seat moves to the removal station again, and the vertical robot of the next process can grasp and take away the battery after the residual electricity is released; it is reliable to use, and the process is convenient and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view of a cylindrical lithium battery discharge device of a specific embodiment;

[0022] Figure 2 It is a right side view of a cylindrical lithium battery discharge device of a specific embodiment;

[0023] Figure 3 It is a top view of a cylindrical lithium battery discharge device of a specific embodiment;

[0024] Figure 4 for Figure 1 Middle AA section view;

[0025] Figure 5 for Figure 2 Middle BB section view;

[0026] Figure 6 For Figure 5 A schematic diagram of placing the battery as a basis;

[0027] Figure 7 It is a schematic diagram of the effect of using a cylindrical lithium battery discharge device adapted to a manipulator in a specific embodiment;

[0028] Among them, the discharge platform 1, the side plate 11, the top plate 12, the sliding groove 13, the boss 14, the mounting plate 15, the placement station 16, the discharge station 17, the removal station 18,

[0029] Discharge chamber 2, channel opening 21, connection hole 22,

[0030] Sliding seat 3, step hole 31, large hole section 32, small hole section 33, outer edge 34, sliding drive motor 35,

[0031] Upper cylinder body 4, upper discharge guide rod 41, upper convex edge 42, upper helical compression spring 43,

[0032] Lower cylinder 5, lower discharge guide rod 51, lower convex edge 52, lower spiral compression spring 53,

[0033] Discharger 6, upper electrode end 61, lower electrode end 62,

[0034] Cylindrical lithium battery 7, vertical manipulator 8. DETAILED DESCRIPTION

[0035] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0036] See also Figure 1-Figure 4 The cylindrical lithium battery discharge device of a specific embodiment includes a discharge platform 1, wherein the discharge platform 1 is provided with a sliding groove 13 extending along the length direction of the discharge platform 1, and a sliding seat 3 for carrying the battery is slidably matched in the sliding groove 13; a step hole 31 for vertically placing the battery is vertically penetrated through the sliding seat 3, and the step hole 31 includes a large hole section 32 and a small hole section 33 below the large hole section 32 so as to vertically carry the battery; specifically, the inner diameter of the large hole section 32 corresponds to the outer diameter of the cylindrical lithium battery 7, and the inner diameter of the small hole section 33 is relatively smaller, and the cylindrical lithium battery 7 can be vertically placed in the large hole section 32 and carried on the step surface where the large hole section 32 and the small hole section 33 transition.

[0037] The discharge platform 1 includes two side plates 11 facing each other vertically and a top plate 12 horizontally connected to the upper ends of the two side plates 11. A sliding groove 13 is vertically penetrated and opened on the top plate 12 and is located between the two side plates 11. A hollow discharge chamber 2 is protruded in the middle of the upper surface of the top plate 12. The inner cavity of the discharge chamber 2 is connected to the sliding groove 13. The two ends of the sliding groove 13 extend beyond the side walls of the two ends of the discharge chamber 2. The side walls of the two ends of the discharge chamber 2 are respectively provided with passage openings 21 corresponding to the two ends of the sliding groove 13 so that the sliding seat 3 carrying the battery can enter and exit. ; In this way, the sliding seat 3 moves to one end of the sliding groove 13 and is outside the discharge chamber 2, which is the placement station 16. The cylindrical lithium battery can be grasped by the vertical manipulator and placed vertically in the step hole 31 of the sliding seat 3. The sliding seat 3 moves to the middle of the sliding groove 13 through the channel opening 21 and is inside the discharge chamber 2, which is the discharge station 17. The sliding seat 3 then moves to the other end of the sliding groove 13 through the other end channel opening 21 and is outside the discharge chamber 2, which is the removal station 18, so that the vertical manipulator in the next process can grasp and take away the discharged battery. Specifically, the channel opening 21 is connected to both ends of the sliding groove 13, and the height of the channel opening 21 is greater than the top height of the battery after it is placed on the sliding seat 3.

[0038] A vertically retractable upper discharge guide rod 41 is provided in the discharge chamber 2, and a vertically retractable lower discharge guide rod 51 is provided below the top plate 12. The lower discharge guide rod 51 is located directly below the upper discharge guide rod 41, and the free end of the lower discharge guide rod 51 is opposite to the free end of the upper discharge guide rod 41.

[0039] When the sliding groove 13 carrying the battery moves to between the upper discharge guide rod 41 and the lower discharge guide rod 51, the upper discharge guide rod 41 extends downward to make conductive contact with the positive electrode of the battery, and the free end diameter of the lower discharge guide rod 51 is smaller than the small hole section 33, and the lower discharge guide rod 51 extends upward to pass through the small hole section 33 to make conductive contact with the negative electrode of the battery;

[0040] The upper discharge guide rod 41 and the lower discharge guide rod 51 are both made of conductive metal and are electrically connected to the discharger 6 respectively to discharge the residual power of the battery after being connected.

[0041] For assistance, see Figure 6 and Figure 7 The cylindrical lithium battery discharge device of the embodiment is suitable for use in an automatic production line with vertical mechanical hand conditions. On the horizontal discharge platform 1, a placement station 16, a discharge station 17 and a removal station 18 are formed on different length sections of the sliding groove 13 respectively. When the sliding seat 3 moves to the placement station 16 outside the discharge chamber 2, the vertical manipulator 8 vertically places the grasped cylindrical lithium battery 7 in the step hole 31 of the sliding seat 3; the sliding seat 3 moves to the discharge station 17, the upper discharge guide rod 41 extends downward to be in conductive contact with the positive electrode of the battery, and the lower discharge guide rod 51 extends upward to be in conductive contact with the negative electrode of the battery. Through the conductively connected discharge instrument 6, the battery discharges the residual electricity in the discharge chamber 2; after the residual electricity is released, the upper discharge guide rod 41 retracts upward to break contact with the positive electrode of the battery, and the lower discharge guide rod 51 retracts downward to break contact with the negative electrode of the battery and escapes from the small hole section 33; finally, the sliding seat 3 moves to the removal station 18 again, and the vertical manipulator 7 of the next process can grab and take away the battery after the residual electricity is released. It is reliable to use and the process is convenient and safe.

[0042] During implementation, the driving source for driving the discharge guide rod to extend and retract vertically is not limited, and can be a telescopic cylinder or a motor drive; the driving source for the sliding seat 3 to move along the sliding groove 13 is not limited, and can be a telescopic cylinder or a motor drive; the specific placement position of the discharger 6 is not limited, and the electrical connection between the discharge guide rod and the discharger 6 can be a flexible wire connection or other conductive connection forms; the discharger 6 is an existing product, and the residual power of the battery can be released by conducting with the positive and negative poles of the battery, which will not be introduced in detail here.

[0043] Please see again Figure 4 , Figure 5 In this embodiment, an upper cylinder body 4 is provided on the top wall of the discharge chamber 2, and a telescopic rod of the upper cylinder body 4 slides downward and penetrates the top wall of the discharge chamber 2, and the upper discharge guide rod 41 is insulated and connected to the free end of the telescopic rod of the upper cylinder body 4;

[0044] A mounting plate 15 is connected between the two side plates 11, and a lower cylinder 5 is provided on the lower surface of the mounting plate 15. The telescopic rod of the lower cylinder 5 slides upward and penetrates the mounting plate 15, and the lower discharge guide rod 51 is insulated and connected to the free end of the telescopic rod of the lower cylinder 5.

[0045] In this way, it is convenient to control and realize the vertical telescopic action of the discharge guide rod. The discharge guide rod is insulated and connected to the free end of the cylinder telescopic rod, and the cylinder telescopic rod can be made of insulating hard material, and the discharge guide rod is fixed at its end. If the cylinder telescopic rod is made of a metal rod, the upper and lower discharge guide rods can be formed into a cylindrical structure with one end open, which is sleeved on the end of the cylinder telescopic rod through the open end, and an insulating plastic sleeve (not shown) is added between the two. When installing, the cylindrical plastic sleeve with one end open is first sleeved on the end of the cylinder telescopic rod, and then the discharge guide rod is sleeved outside the plastic sleeve.

[0046] Among them, a connection hole 22 is opened through the side wall of one side of the discharge chamber 2, and the discharge instrument 6 is installed and connected in the connection hole 22. The inner end of the discharge instrument 6 extends into the discharge chamber 2 and is electrically connected to a rigid upper electrode terminal 61 and a lower electrode terminal 62 respectively. The upper electrode terminal 61 and the lower electrode terminal 62 are made of conductive metal. The upper electrode terminal 61 extends upward and then horizontally extends to the bottom of the upper discharge guide rod 41. The free end of the upper discharge guide rod 41 slides through the end of the upper electrode terminal 61 and is conductively connected to the upper electrode terminal 61.

[0047] The lower electrode terminal 62 extends downward, passes through the through hole on the top plate 12, and extends horizontally to between the top plate 12 (sliding seat 3) and the mounting plate 15. The free end of the lower discharge guide rod 51 slides through the end of the lower electrode terminal 62 and is conductively connected to the lower electrode terminal 62.

[0048] In this way, the structure of the device is more compact and has better integrity. The conductive connection between the discharge guide rod and the electrode terminal can be achieved by matching the outer diameter of the discharge guide rod with the diameter of the inner hole at the end of the electrode terminal for the discharge guide rod to slide through, so that the outer circumferential side wall of the discharge guide rod and the hole wall at the end of the electrode terminal maintain contact and sliding. Alternatively, a brush-like spring sheet can be added to the inner hole at the end of the electrode terminal to maintain conductive contact with the outer circumferential side wall of the discharge guide rod.

[0049] The outer wall of the upper discharge guide rod 41 is raised with an upper convex edge 42, and an upper spiral compression spring 43 is compressed (in a pre-compression state) between the upper convex edge 42 and the upper electrode end 61; the upper convex edge 42 is above the upper electrode end 61, and the upper spiral compression spring 43 is compressed when the upper discharge guide rod 41 extends downward;

[0050] The outer wall of the lower discharge guide rod 51 is raised with a circle of lower convex edge 52, and a lower spiral compression spring 53 is compressed (in pre-compression state) between the lower convex edge 52 and the lower electrode end 62; the lower convex edge 52 is below the lower electrode end 62, and the lower spiral compression spring 53 is compressed when the lower discharge guide rod 51 extends upward.

[0051] In this way, it is beneficial to improve the timeliness of the discharge guide rod's contact and disengagement with the battery when it is retracted, and it can also play the role of positioning / limiting the retracted state; it can be understood that when extended, the helical compression spring will not be compressed before the discharge guide rod is in conductive contact with the battery; that is, when the discharge guide rod is extended and in conductive contact with the battery, the helical compression spring is in the designed normal working compression stroke length state.

[0052] The sliding groove 13 is oval-shaped, and the lower part of the inner wall of the sliding groove 13 has a circle of bosses 14 to form a step. The horizontal cross-sectional shape of the sliding seat 3 is also oval-shaped and the upper and lower widths correspond to the sliding groove 13. The lower surfaces of the two side surfaces or the two side steps are respectively provided with sliding drive motors 35. The sliding drive motors 35 drive the inner wall of the sliding groove 13 through the output wheel to drive the sliding of the sliding seat 3. The upper surface of the sliding seat 3 extends outward with a circle of square outer edges 34, which are higher than the upper surface of the top plate 12 and play a certain role in placing and limiting. The passage opening 21 is rectangular, and its width is greater than the width of the outer edge 34.

[0053] In this way, a relatively mature mobile drive structure is adopted, which is reliable to use and convenient for automatic control.

[0054] The device is suitable for cylindrical lithium batteries of models such as 18650, 27000, and 8460, which have the same outer diameter and can be placed in the step hole 31. Slightly different heights can be adapted to the universality through the telescopic stroke of the upper discharge guide rod 41.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A cylindrical lithium battery discharge device, comprising a discharge platform, wherein the discharge platform is provided with a sliding groove extending along the length direction of the discharge platform, and a sliding seat for carrying the battery is slidably matched in the sliding groove; characterized in that: A step hole is vertically penetrated on the sliding seat, and the step hole includes a large hole section and a small hole section below the large hole section so as to vertically support the battery; The discharge platform comprises two side plates facing each other vertically and a top plate horizontally connected to the upper ends of the two side plates, a sliding groove is provided through the top plate and is located between the two side plates; a hollow discharge chamber is provided on the middle part of the upper surface of the top plate, the inner cavity of the discharge chamber is connected with the sliding groove, the two ends of the sliding groove respectively extend beyond the side walls at the two ends of the discharge chamber, and the side walls at the two ends of the discharge chamber are respectively provided with passage openings corresponding to the two ends of the sliding groove so that the sliding seat carrying the battery can enter and exit; A vertically retractable upper discharge guide rod is provided in the discharge chamber, and a vertically retractable lower discharge guide rod is provided below the top plate. The lower discharge guide rod is located directly below the upper discharge guide rod, and the free end of the lower discharge guide rod is opposite to the free end of the upper discharge guide rod. The upper discharge guide rod and the lower discharge guide rod are electrically connected to the discharge instrument respectively.

2. The cylindrical lithium battery discharge device according to claim 1, characterized in that: When the sliding slot carrying the battery moves between the upper discharge guide rod and the lower discharge guide rod, the upper discharge guide rod extends downward to make conductive contact with one end of the battery, and the lower discharge guide rod extends upward to make conductive contact with the other end of the battery through the small hole section.

3. The cylindrical lithium battery discharge device according to claim 2, characterized in that: An upper cylinder is provided on the top wall of the discharge chamber, a telescopic rod of the upper cylinder slides downward and penetrates the top wall of the discharge chamber, and the upper discharge guide rod is insulated and connected to the free end of the telescopic rod of the upper cylinder; A mounting plate is connected between the two side plates, a lower cylinder is arranged on the lower surface of the mounting plate, a telescopic rod of the lower cylinder slides upward and penetrates the mounting plate, and the lower discharge guide rod is insulated and connected to the free end of the telescopic rod of the lower cylinder.

4. The cylindrical lithium battery discharge device according to claim 3, characterized in that: A connection hole is formed through the side wall of either side of the discharge chamber, and the discharge instrument is installed and connected in the connection hole. The inner end of the discharge instrument extends into the discharge chamber and is respectively connected to a rigid upper electrode terminal and a lower electrode terminal. The free end of the upper discharge guide rod slides through the upper electrode terminal and is conductively connected to the upper electrode terminal; The lower electrode terminal passes through the through hole on the top plate and extends between the top plate and the mounting plate, and the free end of the lower discharge guide rod slides through the lower electrode terminal and is conductively connected with the lower electrode terminal.

5. The cylindrical lithium battery discharge device according to claim 4, characterized in that: The outer wall of the upper discharge guide rod is raised with a circle of upper convex edge, and an upper spiral compression spring is arranged between the upper convex edge and the upper electrode end. When the upper discharge guide rod is extended downward, the upper spiral compression spring is compressed; The outer wall of the lower discharge guide rod is convex with a circle of lower convex edge, and a lower spiral compression spring is arranged between the lower convex edge and the lower electrode end; when the lower discharge guide rod is extended upward, the lower spiral compression spring is compressed.

6. The cylindrical lithium battery discharge device according to claim 1, characterized in that: The sliding groove is oval in shape, and a circle of bosses is provided at the lower part of the inner wall of the sliding groove to form a step. The width of the sliding seat corresponds to the sliding groove, and sliding drive motors are provided on both sides.

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