Battery module-based adhesive removal device

Abstract

The application provides a battery module-based glue removing device, which comprises a rough glue removing mechanism, a fine glue removing mechanism and a driving mechanism. In the process of discharging the battery module, the battery discharge energy originally dissipated in the form of heat is directly converted into mechanical energy for glue removing, thereby realizing energy reuse within the production process. In the process of discharging the battery module, the physical process that the motor speed is reduced due to the gradual drop of the battery voltage with the reduction of the SOC naturally matches the process requirement of rough glue removing by using the high speed of the driving motor and fine glue removing by using the low speed of the driving motor. In this process, an expensive servo system, a force sensor or a complex algorithm is not needed to realize process switching, and the application can spontaneously realize the transition from rough glue removing to fine glue removing. The centrifugal force of a fly hammer is used to control a yoke, thereby realizing power switching of the rough glue removing mechanism and the fine glue removing mechanism. This process is realized in a pure mechanical mode and has high reliability.

Description

Technical Field

[0001] This invention relates to the field of mechanical equipment, and in particular to a degumming device based on a battery module. Background Technology

[0002] In the manufacturing process of power batteries and energy storage batteries, in order to ensure the structural stability, shock resistance, and thermal management performance of the battery module within the casing, adhesives (such as structural adhesives and thermally conductive adhesives) are usually filled or applied between the battery module and the casing. However, during the application of adhesives or module assembly, adhesive overflow often occurs, forming irregular residues on the top, sides, or cell gaps of the battery module. These residues can cause a series of serious problems: First, they may hinder subsequent electrical connections, sampling harness assembly, or cooling system bonding of the battery module; second, uneven residues may lead to uneven stress distribution within the module, affecting long-term reliability; and third, detached adhesive particles may cause internal short circuits, posing safety hazards. Therefore, before the battery pack is encapsulated, the residues on the surface of the battery module must be effectively cleaned.

[0003] Chinese utility model patent CN 223530922 U, published on November 11, 2025, discloses a device for removing adhesive from battery modules. This utility model uses a motor-driven scraper to clean along a preset path. This prior art has at least the following defects:

[0004] 1. Powered by an external stable power grid, it requires a complex servo control system and force sensing feedback system to adjust the force and speed of the cutting tool to prevent damage to the battery surface, which leads to an increase in system complexity and cost;

[0005] 2. The discharge process during battery manufacturing was not fully utilized. The electrical energy generated in this process is usually dissipated as heat through the load resistor and is not effectively utilized. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] To address the aforementioned problems in the prior art, the present invention provides a degumming device based on a battery module.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0010] A battery module-based adhesive removal device includes a coarse adhesive removal mechanism, a fine adhesive removal mechanism, and a drive mechanism;

[0011] The drive mechanism includes a drive motor, a drive shaft, a first transmission shaft, a second transmission shaft, a third transmission shaft, a T-shaped seat, a jaw clutch, a flyweight, a first connecting rod, a second connecting rod, a lifting ring, and a shift fork;

[0012] The drive shaft is connected to the drive motor at one bottom end and the T-shaped seat is installed at one top end of the drive shaft;

[0013] The two ends of the T-shaped seat are respectively hinged to one end of the first connecting rod, and the other end of the first connecting rod is fixedly connected to the flying hammer;

[0014] The lifting ring is sleeved on the drive shaft, and one end of the second connecting rod is hinged to one side of the lifting ring, and the other end of the second connecting rod is hinged to the corresponding first connecting rod.

[0015] The first drive shaft is connected to the drive shaft via a transmission component, and one end of the first drive shaft is connected to the fine adhesive removal mechanism, while the other end of the first drive shaft is connected to the second drive shaft via a jaw clutch.

[0016] The middle region of the shift fork is rotatably connected to the support frame, one end of the shift fork is connected to the upper half clutch in the jaw clutch, and the other end of the shift fork is connected to the lifting ring.

[0017] The second drive shaft is connected to the third drive shaft via a transmission component;

[0018] The third drive shaft is connected to the coarse adhesive removal mechanism.

[0019] Preferably, the fine adhesive removal mechanism includes a first crank-connecting rod transmission component, a first connecting plate, a first force detection component, and a scraper.

[0020] The piston of the first crank-connecting rod transmission component is connected to the first connecting plate;

[0021] The scraper is connected to the first connecting plate via the first force detection element, which is used to detect the force exerted on the scraper during adhesive removal in real time.

[0022] Preferably, the coarse adhesive removal mechanism includes a second crank connecting rod transmission component, a second connecting plate, a second force detection component, and a scraper.

[0023] The piston of the second crank-connecting rod transmission component is connected to the second connecting plate;

[0024] The top of the shovel is connected to the second connecting plate via the second force detection component, which is used to detect the force exerted on the shovel during adhesive removal in real time.

[0025] Preferably, the drive mechanism further includes a housing, and the coarse adhesive removal mechanism and the fine adhesive removal mechanism are symmetrically arranged at the bottom of the housing.

[0026] Preferably, it also includes a robotic arm, which is a five-degree-of-freedom serial articulated industrial robot, and the actuator of the robotic arm is connected to the top of the outer shell.

[0027] Preferably, it also includes a discharge mechanism, which includes a unidirectional buck DC / DC converter and a three-phase inverter bridge. The unidirectional buck DC / DC converter is used to make the output voltage of the lithium battery decrease synchronously with the battery voltage, and the three-phase inverter bridge is used to provide a variable voltage power supply to the drive motor.

[0028] Preferably, the discharge mechanism further includes a controllable constant power electronic load, which is used to discharge the lithium battery according to a set power.

[0029] Preferably, the coarse adhesive removal mechanism is activated when the drive motor speed is greater than 400 rpm, and the fine adhesive removal mechanism is activated when the drive motor speed is less than 200 rpm.

[0030] (III) Beneficial Effects

[0031] The beneficial effects of this invention are as follows:

[0032] 1. This application converts the battery discharge energy, which is originally dissipated as heat during the battery module discharge process, directly into mechanical energy for degumming, thereby realizing the reuse of energy within the production process;

[0033] 2. During the battery module discharge process, the physical process of the battery voltage gradually dropping as the SOC decreases, which leads to a decrease in motor speed, naturally matches the process requirements of using the high speed of the drive motor for coarse adhesive removal and the low speed of the drive motor for fine adhesive removal. In this process, there is no need for expensive servo systems, force sensors or complex algorithms to achieve process switching. This application can spontaneously realize the transition from coarse adhesive removal to fine adhesive removal.

[0034] 3. The centrifugal force of the flying hammer is used to control the shift fork, realizing the power switching between the coarse and fine degumming mechanisms. This process is achieved purely mechanically, ensuring high reliability. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of a battery module-based adhesive removal device.

[0036] Figure 2 for Figure 1 Enlarged diagram of section A in the middle;

[0037] Figure 3 for Figure 1Enlarged schematic diagram of section B in the middle;

[0038] Figure 4 This is a schematic diagram of the internal structure of a battery module-based adhesive removal device. Figure 1 ;

[0039] Figure 5 This is a schematic diagram of the internal structure of a battery module-based adhesive removal device. Figure 2 ;

[0040] Figure 6 This is a schematic diagram of a robotic arm connected to a battery module-based adhesive removal device.

[0041] Explanation of reference numerals in the attached figures

[0042] 1. Drive mechanism;

[0043] 11. Outer casing; 12. Drive motor; 13. Drive shaft; 14. First connecting rod; 15. Second connecting rod; 16. Lifting ring; 17. Shift fork; 18. Support frame; 19. Jaw clutch; 110. First drive shaft; 111. Second drive shaft; 112. Third drive shaft; 113. Flying hammer; 114. T-shaped seat;

[0044] 2. Fine adhesive removal mechanism;

[0045] 21. First crank-connecting rod transmission component; 22. First connecting plate; 23. First force detection component; 24. Scraper;

[0046] 3. Coarse adhesive removal mechanism;

[0047] 31. Second crank-connecting rod transmission component; 32. Second connecting plate; 33. Second force detection component; 34. Shovel blade;

[0048] 4. Robotic arm. Detailed Implementation

[0049] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0050] Please refer to Figures 1 to 5 The present invention provides a degumming device based on a battery module, including a coarse degumming mechanism 3, a fine degumming mechanism 2, and a driving mechanism 1;

[0051] The drive mechanism 1 includes a drive motor 12, a drive shaft 13, a first transmission shaft 110, a second transmission shaft 111, a third transmission shaft 112, a T-shaped seat 114, a jaw clutch 19, a fly hammer 113, a first connecting rod 14, a second connecting rod 15, a lifting ring 16, and a shift fork 17.

[0052] One end of the drive shaft 13 is connected to the drive motor 12, and one end of the drive shaft 13 is equipped with a T-shaped seat 114.

[0053] The two ends of the T-shaped seat 114 are respectively hinged to one end of the first connecting rod 14, and the other end of the first connecting rod 14 is fixedly connected to the flying hammer 113;

[0054] The lifting ring 16 is sleeved on the drive shaft 13. The two sides of the lifting ring 16 are hinged to one end of the second connecting rod 15, and the other end of the second connecting rod 15 is hinged to the corresponding first connecting rod 14.

[0055] The first drive shaft 110 is connected to the drive shaft 13 through a transmission component, and one end of the first drive shaft 110 is connected to the fine degumming mechanism 2, while the other end of the first drive shaft 110 is connected to the second drive shaft 111 through a jaw clutch 19.

[0056] The middle area of ​​the shift fork 17 is rotatably connected to the support frame 18. One end of the shift fork 17 is connected to the upper half clutch in the jaw clutch 19, and the other end of the shift fork 17 is connected to the lifting ring 16.

[0057] The second drive shaft 111 is connected to the third drive shaft 112 via a transmission component;

[0058] The third drive shaft 112 is connected to the coarse adhesive removal mechanism 3;

[0059] In use, the power battery module to be discharged supplies electrical energy to the drive motor 12 through the discharge mechanism. The drive motor 12 drives the drive shaft 13 to rotate. The drive shaft 13 causes the flying hammer 113 to rotate around the drive shaft 13 via the first connecting rod 14. During the rotation of the flying hammer 113, under the action of centrifugal force, the lifting ring 16 moves upward through the second connecting rod 15. The upward movement of the lifting ring 16 causes the upper half clutch of the jaw clutch 19 connected to the other end of the shift fork 17 to move downward, realizing the engagement of the jaw clutch 19. The drive shaft 13 drives the first transmission shaft 110 to rotate through the transmission component. After the jaw clutch 19 is engaged, the first transmission shaft 110 drives the second transmission shaft 111 to rotate. The second transmission shaft 111 drives the third transmission shaft 112 to rotate through the transmission component. The third transmission shaft 112 drives the coarse degumming mechanism 3 to perform the degumming operation. The coarse degumming mechanism 3 is used to degumm the discharged battery module to be degummed. The thick and tough residual adhesive on the battery module (not the power battery module that provides power) is removed. As the power battery module continues to discharge, the voltage of the power battery module gradually decreases, and the speed of the drive motor 12 connected to the power battery module also gradually decreases. This causes the centrifugal force on the flying hammer 113 to gradually decrease. Under the action of the reduced centrifugal force, the lifting ring 16 moves downward through the second connecting rod 15. The downward movement of the lifting ring 16 causes the upper half clutch of the jaw clutch 19 connected to the other end of the shift fork 17 to move upward, so that the jaw clutch 19 is disengaged. The kinetic energy cannot be transmitted to the second transmission shaft 111. The drive shaft 13 only drives the first transmission shaft 110 to rotate. The first transmission shaft 110 drives the fine adhesive removal mechanism 2 to perform adhesive removal work, cleaning the thin layer of residual adhesive on the surface of the discharged battery module (not the power battery module that provides power) that is to be removed.

[0060] It should be noted that the battery module used for power supply and the battery module that needs to be de-adhesive removed are within a safe distance and are operated separately.

[0061] refer to Figure 2 In this embodiment, the fine adhesive removal mechanism 2 includes a first crank connecting rod transmission component 21, a first connecting plate 22, a first force detection component 23, and a scraper 24;

[0062] The piston of the first crank connecting rod transmission component 21 is connected to the first connecting plate 22;

[0063] The scraper 24 is connected to the first connecting plate 22 via the first force detection element 23. The first force detection element 23 is used to detect the force exerted on the scraper 24 when removing glue in real time.

[0064] In use, the first crank connecting rod transmission component 21 converts the rotational energy of the first transmission shaft 110 into reciprocating linear motion energy, which, together with the first connecting plate 22 and the scraper 24, performs the residual adhesive removal operation. The scraper 24 is mainly used to clean the thin layer of residual adhesive on the upper surface of the battery module. Due to the inertial impact and vibration brought about by high-speed motion, it is not conducive to cleaning the thin layer of residual adhesive on the upper surface of the battery module. At the end of the battery discharge period, the low voltage of the battery module causes the low speed of the drive motor 12 to meet the power input requirements of the fine adhesive removal mechanism 2.

[0065] refer to Figure 3 In this embodiment, the coarse glue removal mechanism 3 includes a second crank connecting rod transmission component 31, a second connecting plate 32, a second force detection component 33, and a scraper 34;

[0066] The piston of the second crank connecting rod transmission component 31 is connected to the second connecting plate 32;

[0067] The top of the scraper 34 is connected to the second connecting plate 32 via the second force detection element 33. The second force detection element 33 is used to detect the force exerted on the scraper 34 when removing glue in real time.

[0068] In use, the second crank connecting rod transmission component 31 converts the rotational energy of the third transmission shaft 112 into reciprocating linear motion energy, which, together with the second connecting plate 32 and the scraper 34, achieves the scraping of residual adhesive. The scraper 34 is mainly used to clean the thick and tough residual adhesive on the upper surface of the battery module. Therefore, the scraper 34 provides a large impact force. In the early stage of battery discharge, the high voltage of the battery module causes the drive motor 12 to run at high speed, which can just meet the power input requirements of the coarse adhesive removal mechanism 3.

[0069] Both the first force detection element 23 and the second force detection element 33 employ force control sensors.

[0070] refer to Figure 6 In this embodiment, the drive mechanism 1 also includes a housing 11, with the coarse adhesive removal mechanism 3 and the fine adhesive removal mechanism 2 arranged symmetrically on the bottom of the housing 11. It also includes a robotic arm 4, which is a five-degree-of-freedom serial articulated industrial robot. The execution end of the robotic arm 4 is connected to the top of the housing 11. The robotic arm 4 can be used to quickly switch between the coarse adhesive removal mechanism 3 and the fine adhesive removal mechanism 2.

[0071] In this embodiment, a discharge mechanism is also included. The discharge mechanism includes a unidirectional buck DC / DC converter and a three-phase inverter bridge. The unidirectional buck DC / DC converter is used to make the output voltage of the lithium battery decrease synchronously with the battery voltage. The three-phase inverter bridge is used to provide a variable voltage power supply to the drive motor 12. The discharge mechanism also includes a controllable constant power electronic load. The controllable constant power electronic load is used to discharge the lithium battery according to a set power. By adding the controllable constant power electronic load, the discharge of the power battery module to be discharged can be controlled, thereby better cooperating with the degumming operation of the battery module.

[0072] In this embodiment, the coarse adhesive removal mechanism 3 is started when the speed of the drive motor 12 is greater than 400 revolutions per minute, and the fine adhesive removal mechanism 2 is started when the speed of the drive motor 12 is less than 200 revolutions per minute.

[0073] The working principle of this invention is as follows:

[0074] The power battery module to be discharged supplies electrical energy to the drive motor 12 through the discharge mechanism. The drive motor 12 drives the drive shaft 13 to rotate. The drive shaft 13 causes the fly hammer 113 to rotate around the drive shaft 13 via the first connecting rod 14. During the rotation of the fly hammer 113, under the action of centrifugal force, the lifting ring 16 moves upward through the second connecting rod 15. The upward movement of the lifting ring 16 causes the upper half clutch of the jaw clutch 19 connected to the other end of the shift fork 17 to move downward, realizing the engagement of the jaw clutch 19. The drive shaft 13 drives the first transmission shaft 110 to rotate through the transmission component. After the jaw clutch 19 is engaged, the first transmission shaft 110 drives the second transmission shaft 111 to rotate. The second transmission shaft 111 drives the third transmission shaft 112 to rotate through the transmission component. The third transmission shaft 112 drives the coarse adhesive removal mechanism 3 to perform adhesive removal. The coarse adhesive removal mechanism 3 is used to remove adhesive from the discharged battery module (not the battery module to be removed). The thick and tough residual adhesive on the power battery module (which provides the power) is removed. As the power battery module continues to discharge, its voltage gradually decreases, and the speed of the drive motor 12 connected to the power battery module also gradually decreases. This causes the centrifugal force on the flying hammer 113 to gradually decrease. Under the action of the reduced centrifugal force, the lifting ring 16 moves downward through the second connecting rod 15. The downward movement of the lifting ring 16 causes the upper half clutch of the jaw clutch 19 connected to the other end of the shift fork 17 to move upward, so that the jaw clutch 19 is disengaged. The kinetic energy cannot be transmitted to the second transmission shaft 111. The drive shaft 13 drives the first transmission shaft 110 to rotate through the transmission component. The first transmission shaft 110 drives the fine adhesive removal mechanism 2 to perform adhesive removal, cleaning the thin layer of residual adhesive on the surface of the discharged battery module (not the power battery module that provides the power) that needs adhesive removal.

[0075] It should be noted that the transmission components connected to the drive shaft 13 include a driving wheel disposed on the drive shaft 13, a driven wheel disposed on the first transmission shaft 110, and a synchronous belt connecting the driving wheel and the driven wheel.

[0076] The above are merely embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention's specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

[0077] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A de-adhesive removal device based on a battery module, characterized in that, It includes a coarse adhesive removal mechanism, a fine adhesive removal mechanism, a drive mechanism, and a discharge mechanism; The drive mechanism includes a drive motor, a drive shaft, a first transmission shaft, a second transmission shaft, a third transmission shaft, a T-shaped seat, a jaw clutch, a flyweight, a first connecting rod, a second connecting rod, a lifting ring, and a shift fork; The drive shaft is connected to the drive motor at one bottom end and the T-shaped seat is installed at one top end of the drive shaft; The two ends of the T-shaped seat are respectively hinged to one end of the first connecting rod, and the other end of the first connecting rod is fixedly connected to the flying hammer; The lifting ring is sleeved on the drive shaft, and one end of the second connecting rod is hinged to one side of the lifting ring, and the other end of the second connecting rod is hinged to the corresponding first connecting rod. The first drive shaft is connected to the drive shaft via a transmission component, and one end of the first drive shaft is connected to the fine adhesive removal mechanism, while the other end of the first drive shaft is connected to the second drive shaft via a jaw clutch. The middle region of the shift fork is rotatably connected to the support frame, one end of the shift fork is connected to the upper half clutch in the jaw clutch, and the other end of the shift fork is connected to the lifting ring. The second drive shaft is connected to the third drive shaft via a transmission component; The third drive shaft is connected to the coarse adhesive removal mechanism; The discharge mechanism includes a unidirectional buck DC / DC converter and a three-phase inverter bridge. The unidirectional buck DC / DC converter is used to make the output voltage of the lithium battery decrease synchronously with the battery voltage. The three-phase inverter bridge is used to provide a variable voltage power supply to the drive motor.

2. The adhesive removal device based on a battery module according to claim 1, characterized in that, The fine adhesive removal mechanism includes a first crank connecting rod transmission component, a first connecting plate, a first force detection component, and a scraper. The piston of the first crank-connecting rod transmission component is connected to the first connecting plate; The scraper is connected to the first connecting plate via the first force detection element, which is used to detect the force exerted on the scraper during adhesive removal in real time.

3. The adhesive removal device based on a battery module according to claim 1, characterized in that, The coarse adhesive removal mechanism includes a second crank connecting rod transmission component, a second connecting plate, a second force detection component, and a scraper. The piston of the second crank-connecting rod transmission component is connected to the second connecting plate; The top of the shovel is connected to the second connecting plate via the second force detection component, which is used to detect the force exerted on the shovel during adhesive removal in real time.

4. The adhesive removal device based on a battery module according to claim 1, characterized in that, The drive mechanism also includes a housing, and the coarse glue removal mechanism and the fine glue removal mechanism are symmetrically arranged at the bottom of the housing.

5. The adhesive removal device based on a battery module according to claim 4, characterized in that, It also includes a robotic arm, which is a five-degree-of-freedom serial articulated industrial manipulator, and the actuator of the robotic arm is connected to the top of the outer shell.

6. The adhesive removal device based on a battery module according to claim 1, characterized in that, The discharge mechanism also includes a controllable constant power electronic load, which is used to discharge the lithium battery according to a set power.

7. The adhesive removal device based on a battery module according to claim 1, characterized in that, The coarse adhesive removal mechanism is activated when the drive motor speed is greater than 400 rpm, and the fine adhesive removal mechanism is activated when the drive motor speed is less than 200 rpm.

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