Integrated battery liquid injection mechanism

Abstract

The present application relates to battery liquid injection technical field, especially to integrated battery liquid injection mechanism, including liquid injection device and liquid injection fixture device, liquid injection device includes liquid injection cavity, liquid injection cavity is provided with liquid injection assembly and vacuumizing assembly; Liquid injection assembly includes liquid injection cup and liquid inlet head communicated with liquid injection cup, liquid injection needle is installed in the bottom of liquid injection cup; Liquid injection fixture device includes battery fixture and carrying mechanism for driving battery fixture to be close to or away from liquid injection cavity; The breathing, high pressure standing and liquid injection work station are integrated in the liquid injection cavity, and the batteries of multiple battery fixtures are simultaneously processed and operated, the battery fixture can be self-adaptively adjusted in width and height according to the size of different specifications, the positioning and clamping operation of the batteries of different specifications is completed, the batteries can be prevented from falling from the fixture, the stability of the clamped batteries is better during liquid injection, and when cooperating with the liquid injection cavity, the batteries will not exceed the predetermined error range, the liquid injection production process is improved, and good compatibility is achieved.

Description

Technical Field

[0001] This invention relates to the field of battery electrolyte filling technology, and more particularly to an integrated battery electrolyte filling mechanism. Background Technology

[0002] Batteries serve as the power source for new energy vehicles. With the development of new energy vehicles, the demand for batteries is increasing. However, in the battery production process, after the battery cells are housed in a steel casing, they need to undergo an electrolyte injection process. Electrolyte injection is a crucial step in battery production, as its quality directly affects the yield and lifespan of lithium batteries. However, existing electrolyte injection equipment has a low degree of automation, requiring a large number of manual operators, making it difficult to accurately inject the correct amount of electrolyte. Furthermore, frequent production line stoppages and waiting times severely impact production efficiency. Additionally, existing electrolyte injection machines inject the electrolyte into the battery cells, and each injection process... Afterwards, electrolyte residue remains at the bottom of the injection cup and at the injection nozzle. Before the next battery is injected, the residual electrolyte accumulates and drips onto the injection machine platform, polluting the working environment. Furthermore, the electrolyte residue on the outside of the injection nozzle can crystallize, which can adversely affect the processing of subsequent batteries and reduce the battery yield. Therefore, in the development of battery injection equipment, the battery injection process suffers from defects such as low injection efficiency, unstable injection volume, and easy corrosion of the aluminum shell surface, resulting in low product quality and making it increasingly unable to meet the needs of modern development. Therefore, it is urgent to make necessary improvements and innovations to the existing injection mechanism.

[0003] In response, patent application CN202111434542.6 discloses a battery electrolyte filling device, comprising: an electrolyte filling device, wherein multiple electrolyte filling devices are evenly distributed along a circumferential direction on a turntable device, the turntable device drives the multiple electrolyte filling devices to rotate synchronously horizontally along a circumferential direction, each electrolyte filling device including an electrolyte filling cup and an electrolyte filling nozzle for storing electrolyte, the electrolyte in the electrolyte filling cup being injected into the battery through the electrolyte filling nozzle; a backup electrolyte device, wherein the backup electrolyte device includes a backup electrolyte reservoir and an electrolyte filling needle for storing electrolyte, the electrolyte in the backup electrolyte reservoir being injected into the electrolyte filling cup through the electrolyte filling needle; and a cleaning device disposed on the side of the turntable device, the cleaning device being used to clean the electrolyte filling nozzle. This invention includes a cleaning device capable of cleaning the electrolyte filling nozzle after a single filling operation, and both the electrolyte filling cup and the backup electrolyte reservoir have umbrella-shaped baffles at their inlet ends to prevent liquid from being drawn into the pipes during vacuuming, forming crystals and corroding the pipes, thus affecting the electrolyte filling performance.

[0004] In the electrolyte injection process, batteries need to undergo electrolyte injection, breathing, and high-pressure settling. However, existing electrolyte injection mechanisms transport batteries through injection fixtures, with the breathing, high-pressure settling, and injection processes arranged sequentially. The injection fixtures pass through the breathing station, high-pressure settling station, and injection station in sequence, processing the batteries in the injection fixtures one by one. This results in a lack of capacity to produce batteries of different specifications. When the demand for batteries of different specifications increases, the production process becomes insufficient, and the existing equipment cannot be compatible with the production of batteries of different specifications. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated battery electrolyte filling mechanism to address the shortcomings of existing technologies.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows:

[0007] An integrated battery liquid injection mechanism includes a liquid injection device and a liquid injection clamp device that cooperates with the liquid injection device. The liquid injection device includes a liquid injection chamber that can move longitudinally. The liquid injection chamber is provided with a liquid injection component and a vacuum component.

[0008] The liquid injection assembly includes a liquid injection cup and a liquid inlet head communicating with the liquid injection cup, and a liquid injection needle is installed at the bottom of the liquid injection cup; the vacuum assembly includes multiple air extraction ports arranged in the liquid injection chamber.

[0009] The liquid injection clamp device includes a battery fixture and a transport mechanism that drives the battery fixture to move closer to or away from the liquid injection cavity; the battery fixture includes a first clamping seat and a second clamping seat, the second clamping seat can elastically move closer to the first clamping seat, the first clamping seat is provided with a movable member, when the movable member moves to one side of the first clamping seat, the second clamping seat can move away from the first clamping seat, and when the movable member moves to the other side of the first clamping seat, the second clamping seat can elastically move closer to the first clamping seat.

[0010] The beneficial effects of this invention are as follows: The injection chamber integrates breathing, high-pressure settling, and injection stations, and simultaneously processes batteries from multiple battery fixtures. The battery fixtures can adaptively adjust their width and height according to different sizes to complete the positioning and clamping operation of batteries of different sizes, preventing the batteries from falling off the fixtures. The clamped batteries have better stability during injection, and when they cooperate with the injection chamber, they will not exceed the predetermined error range, thus improving the injection production process and having good compatibility. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of an integrated battery electrolyte filling mechanism.

[0012] Figure 2 This is a schematic diagram of the exploded structure of the liquid injection device.

[0013] Figure 3This is a schematic diagram showing the connection between multiple injection components and the injection drive.

[0014] Figure 4 This is a schematic diagram of the liquid injection assembly.

[0015] Figure 5 This is a schematic diagram of the exploded structure of the liquid injection assembly.

[0016] Figure 6 This is a cross-sectional schematic diagram of the liquid injection assembly.

[0017] Figure 7 This is a schematic diagram of the handling mechanism.

[0018] Figure 8 This is a top view of the transfer device.

[0019] Figure 9 This is a schematic diagram of the structure supporting the pallet.

[0020] Figure 10 This is a top view of the drive mechanism.

[0021] Figure 11 This is a schematic diagram of the battery fixture in the clamped state.

[0022] Figure 12 This is a schematic diagram of the battery fixture in its open state.

[0023] Figure 13 This is a schematic diagram of the exploded structure of a battery fixture.

[0024] Figure 14 This is an exploded view of the first clamp and the elastic connector.

[0025] The reference numerals in the figures include:

[0026] 100 - Injection chamber, 101 - Chamber lifting mechanism, 102 - Side plate, 103 - Main lifting cylinder

[0027] 104 - Exhaust port, 105 - Fixed top plate

[0028] 1-Injection assembly,

[0029] 10-Inlet head, 11-First injection chamber, 12-First plug, 13-Inlet hole, 14-Drive head, 15-First lifting drive component, 16-Guide sleeve, 17-Drive chamber, 18-First lifting head

[0030] 2-Injection cup,

[0031] 21-Second injection chamber, 22-Sealing cap, 23-Injection hole, 24-Sealing ring, 25-Air inlet pipe, 26-Sealing hole, 27-Second lifting head, 28-Second plug, 29-Injection port

[0032] 3-Injection drive component,

[0033] 31-Lifting drive plate, 32-Fixed base, 33-Liquid injection lifting cylinder, 34-Liquid injection drive plate,

[0034] 35 - Through hole, 36 - Buffer sleeve, 37 - Horizontal bar, 38 - Connecting roller, 39 - Connecting groove

[0035] 4-Injection plate,

[0036] 41-First longitudinal guide rail, 42-Longitudinal sliding seat, 43-Annular sleeve, 44-Drive bracket,

[0037] 45-Cavity lifting cylinder, 46-Sealing rubber plug, 47-Injection needle,

[0038] 5-Battery fixture,

[0039] 51-First clamping seat, 52-Second clamping seat, 53-First clamping block, 54-Second clamping block

[0040] 55-Guide rail structure, 56-Modible groove, 57-Second longitudinal guide rail, 58-Push-up compression spring,

[0041] 6-Elastic connectors

[0042] 61-First movable rod, 62-Modible drive plate, 63-First movable hole, 64-First compression spring, 65-Rolling groove, 66-Rolling element, 67-Limiting groove

[0043] 7-Active parts,

[0044] 71-Second movable rod, 72-Second movable hole, 73-Second compression spring, 74-First wedge block,

[0045] 75-First push rod, 76-First drive seat, 77-Second push rod, 78-Second drive seat

[0046] 79-Card slot,

[0047] 8-Transfer device, 80-Guide rail assembly, 81-Support guide rail, 82-Support sliding seat,

[0048] 83-Sensing component, 84-Sensing transmitter, 85-Sensing receiver, 86-First sensing support base,

[0049] 87-Second induction support base, 88-Push rod, 89-Push plate,

[0050] 9-Lifting and positioning structure,

[0051] 91-First locking position, 92-Second locking position, 93-Positioning seat, 94-Lifting seat

[0052] 95-Secondary positioning block, 96-Lifting cylinder, 97-Supporting tray,

[0053] 300-Drive mechanism

[0054] 130-Bottom drive seat, 131-Transmission belt, 132-Drive wheel, 133-Drive seat, 134-Moving seat, 135-Transverse guide rail, 136-Transverse sliding seat, 137-Snap-fit ​​structure, 138-Snap-fit ​​lifting seat,

[0055] 139-Embedded block, 140-Third longitudinal guide rail, 141-Longitudinal sliding seat. Detailed Implementation

[0056] The present invention will now be described in detail with reference to the accompanying drawings.

[0057] like Figure 1-14 As shown, the integrated battery liquid injection mechanism includes a liquid injection device and a liquid injection clamping device that cooperates with the liquid injection device. The liquid injection device includes a longitudinally movable liquid injection cavity 100, which is equipped with a liquid injection assembly and a vacuuming assembly. The liquid injection clamping device includes a battery fixture 5 and a transport mechanism that drives the battery fixture 5 to move closer to or away from the liquid injection cavity.

[0058] The injection chamber 100 includes an injection drive plate 34. Multiple side plates 102 are installed on the side plates 102 of the injection drive plate 34. The multiple side plates 102 are spliced ​​with the injection drive plate 34 to form the injection chamber 100, which can improve its sealing performance. The injection drive plate 34 is provided with a vacuuming mechanism, which includes multiple air extraction ports 104 arranged on the injection drive plate 34. During injection, after the injection chamber 100 is engaged with the fixture, the vacuuming mechanism evacuates the injection chamber 100 to achieve the injection pressure standard and improve the injection quality.

[0059] Preferably, there are four side plates 102, which are vertically spliced ​​together to form a U-shaped structure and connected to the liquid injection drive plate 34.

[0060] The injection chamber mechanism also includes a chamber lifting mechanism 101 that drives the injection chamber 100 to move up and down. The chamber lifting mechanism 101 includes a fixed top plate 105 located above the injection drive plate 34. A main lifting cylinder 103 is installed on the fixed top plate 105. The piston rod of the main lifting cylinder 103 passes through the fixed top plate 105 and is connected to the injection drive plate 34. When injection is required, the active lifting cylinder drives the injection chamber 100 to descend, causing the height of the injection chamber 100 to change, so that it can descend to approach the injection fixture where the battery is positioned. After the injection is completed, the active lifting cylinder drives the injection chamber 100 to rise.

[0061] The injection drive plate 34 is provided with an injection assembly 1, which includes an injection cup 2 and an inlet head 10 connected to the injection cup 2. An injection needle 47 is installed at the bottom of the injection cup 2.

[0062] Specifically, the inlet head 10 is formed with a first injection chamber 11 for liquid to pass through, and the injection cup 2 is formed with a second injection chamber 21 for transferring liquid from the inlet head 10. The bottom of the first injection chamber 11 is connected to the second injection chamber 21. The first injection chamber 11 is provided with a first plug 12 that can move along the length of the first injection chamber 11. The bottom of the second injection chamber 21 is formed with an injection port 29. The second injection chamber 21 is provided with a second plug 28 that controls the liquid to exit from the injection port 29. The second plug 28 can be close to or away from the injection port 29.

[0063] It should be noted that the liquid is an electrolyte.

[0064] The liquid is connected to the inlet head 10, and the liquid can enter the first injection chamber 11. When the first plug 12 of the first injection chamber 11 moves away from the end of the first injection chamber 11, the liquid can enter the second injection chamber 21 of the injection cup 2. After the injection port 29 is inserted into the battery pack, the second plug 28 moves away from the injection port 29 and presses positively into the second injection chamber 21, so that the liquid in the second injection chamber 21 can enter the battery pack for injection, preventing liquid leakage. When not injecting liquid, the liquid will not leak.

[0065] Furthermore, the inlet head 10 is connected to an inlet hole 13, which communicates with the first injection chamber 11. A drive head 14 is connected to the top of the inlet head 10, and a first lifting drive component 15 is installed on the drive head 14. The lifting drive component is connected to the first plug 12. Under the drive of the first lifting drive component 15, the first plug 12 can move longitudinally along the length direction of the first injection chamber 11. Since the inlet hole 13 is connected to the inlet head 10, when the first plug 12 moves downward to the end, the first plug 12 will block the first injection chamber 11, and the liquid will not enter the second injection chamber 21, thus preventing the liquid in the injection cup 2 from overflowing.

[0066] A guide sleeve 16 is installed at the top of the first injection chamber 11 to guide the top of the first plug 12 through. A drive cavity 17 is formed inside the drive head 14. The first lifting drive component 15 includes a first lifting head 18 that moves along the length of the drive cavity 17. The bottom of the first lifting head 18 is connected to the first plug 12. The first plug 12 can move along the length of the first injection chamber 11. The first lifting head 18 moves up and down in the drive cavity 17 of the drive head 14, thereby driving the first plug 12 to move up and down. The guide sleeve 16 can ensure the stability of the movement of the first plug 12 and ensure the sealing during sealing, so that there will be no displacement.

[0067] Preferably, the drive head 14 is equipped with a cavity lifting cylinder 45, and the first lifting head 18 can move up and down under the drive of the cavity lifting cylinder 45.

[0068] A sealing cap 22 is installed on the top of the injection cup 2. The sealing cap 22 is formed with an injection hole 23 for the injection head 10 to be inserted. A sealing ring 24 is installed in the injection hole 23 and nested outside the injection head 10. The injection head 10 is inserted into the second injection chamber 21 inside the injection cup 2 through the injection hole 23 for transfer. The use of the sealing ring 24 can further improve the sealing performance of the injection cup 2 and prevent leakage.

[0069] The injection cup 2 is equipped with a pneumatic system, which includes an air inlet pipe 25 connected to the second injection chamber 21. The second injection chamber 21 is sealed. When the pneumatic system does not blow air, the liquid in the second injection chamber 21 will not drip from the injection port 29, and no liquid leakage will occur, effectively protecting the equipment. When the second plug 28 moves away from the injection port 29, the pneumatic system introduces gas into the second injection chamber 21 through the air inlet pipe 25. At this time, the second injection chamber 21 is under positive pressure, and the liquid in the second injection chamber 21 will be sprayed out from the injection port 29 to realize the injection process.

[0070] Furthermore, the sealing cap 22 is formed with a sealing hole 26 for the top of the second plug 28 to extend outward. The sealing cap 22 is equipped with a second lifting head 27 that can move longitudinally. The second lifting head 27 is connected to the top of the second plug 28. The second lifting head 27 moves longitudinally so that the second plug 28 can move up and down at the same time, away from or near the injection port 29. When the second plug 28 moves away from the injection port 29, the liquid in the injection cup 2 can be discharged to ensure the stability of the injection.

[0071] Preferably, a drive bracket 44 is installed on the top of the sealing cover 22, and a longitudinal cavity lifting cylinder 45 is installed on the drive bracket 44. The drive end of the longitudinal lifting cylinder is connected to the second lifting head 27. Under the drive of the longitudinal lifting cylinder 45, the second lifting head 27 can move up and down.

[0072] Furthermore, a sealing plug 46 is installed at the bottom of the second plug 28 to block the injection port 29. When the second plug 28 is sealing, the sealing plug 46 will contact the annular cavity inside the injection port 29 to prevent liquid leakage and improve the sealing performance. An injection needle 47 is installed in the injection port 29. When injecting liquid, the injection needle 47 is inserted into the battery pack. When the second plug 28 is away from the injection port 29, the liquid in the injection cup 2 can be discharged and injected into the battery pack through the injection needle 47.

[0073] The liquid injection device also includes a liquid injection drive 3 that drives the liquid injection plate 4 to move longitudinally. The liquid injection drive 3 includes a longitudinally moving lifting drive plate 31, which is connected to multiple liquid injection plates 4. During liquid injection, the liquid injection drive 3 drives the lifting drive plate 31 to move longitudinally, so that the liquid injection assembly 1 installed on the liquid injection plate 4 can approach the battery clamp 5, so that the liquid injection port 29 can be inserted into the battery pack. Multiple liquid injection ports 29 simultaneously inject liquid into multiple battery packs, greatly improving the liquid injection efficiency.

[0074] Furthermore, a sealed cavity is formed at the bottom of the liquid injection drive plate 34, and a buffer sleeve 36 that makes buffer contact with the battery pack is installed at the bottom through the hole 35. The liquid injection drive plate 34 is formed with a through hole 35 for the liquid injection port 29 to pass through. During liquid injection, the cavity formed at the bottom of the liquid injection drive plate 34 is evacuated, and the liquid injection needle 47 installed at the liquid injection port 29 can pass through the through hole 35. When the through hole 35 at the bottom of the liquid injection drive plate 34 contacts the battery pack, the buffer sleeve 36 has a soft contact, so that the liquid injection port 29 has a sealing effect when it contacts the battery pack, reducing the probability of leakage.

[0075] Preferably, the buffer sleeve 36 is made of silicone material.

[0076] Furthermore, the liquid injection drive component 3 also includes a fixed base 32 installed on the top of the liquid injection drive plate 34. A liquid injection lifting cylinder 33 is provided between the lifting drive plate 31 and the fixed base 32. The cylinder body of the liquid injection lifting cylinder 33 is installed on the lifting drive plate 31, and the piston rod of the liquid injection lifting cylinder 33 is connected to the fixed base 32. The lifting drive plate 31 is equipped with an outwardly extending transverse bar 37. A connecting roller 38 is installed at the end of the transverse bar 37. The liquid injection plate 4 is formed with a connecting groove 39 for the connecting roller 38 to be inserted. The lifting drive plate 31 is connected to the connecting groove 39 of the liquid injection plate 4 through the connecting roller 38 of the transverse bar 37. When the liquid injection lifting cylinder 33 performs lifting movement, the liquid injection plate 4 can move longitudinally, so that the liquid injection needle 47 installed in the liquid injection port 29 will pass through the through hole 35 and cooperate with the battery pack.

[0077] Preferably, the fixed base 32 is provided with a first longitudinal guide rail 41, and a longitudinal sliding seat 42 is slidably mounted on the first longitudinal guide rail 41. The injection plate 4 is connected to the longitudinal sliding seat 42, and when the injection plate 4 moves longitudinally, it can be guided to move along the first longitudinal guide rail 41.

[0078] Preferably, the injection plate 4 is fitted with an annular sleeve 43 nested in the injection cup 2, and the annular sleeve 43 fixes the injection cup 2.

[0079] The injection chamber 100 integrates breathing, high-pressure settling, and injection stations, and simultaneously processes batteries from multiple battery fixtures 5. The battery fixtures 5 can adaptively adjust their width and height according to different sizes to complete the positioning and clamping operation of batteries of different specifications. When used in conjunction with the injection chamber 100, they will not exceed the predetermined error range, thus improving the injection production process and having good compatibility.

[0080] The battery fixture 5 includes a first clamping seat 51 and a second clamping seat 52. The second clamping seat 52 can elastically approach the first clamping seat 51. The first clamping seat 51 is provided with a movable member 7. When the movable member 7 moves toward one side of the first clamping seat 51, the second clamping seat 52 can move away from the first clamping seat 51. When the movable member 7 moves toward the other side of the first clamping seat 51, the second clamping seat 52 can elastically approach the first clamping seat 51.

[0081] Under the action of external force, the movable part 7 can move along the length direction of the first clamping seat 51, so that the second clamping seat 52 can move closer to or further away from the first clamping seat 51, thereby changing the distance between the first clamping seat 51 and the second clamping seat 52. This facilitates adaptive clamping of batteries of different thicknesses, prevents the batteries from falling off the clamp, and ensures better stability of the clamped batteries during liquid injection.

[0082] Specifically, the first clamping seat 51 is movably provided with a first clamping block 53, and the second clamping seat 52 is movably provided with a second clamping block 54. The first clamping seat 51 and the second clamping seat 52 are respectively provided with guide rail structures 55 along the longitudinal direction. The first clamping block 53 and the second clamping block 54 can move longitudinally along the guide rail structure 55. The first clamping block 53 and the second clamping block 54 can be elastically lifted along the guide rail structure 55 respectively. The first clamping block 53 is movably installed on the first clamping seat 51, and the second clamping block 54 is movably installed on the second clamping seat 52. After the second clamping seat 52 approaches the first clamping seat 51, the battery is contacted and clamped by the first clamping block 53 and the second clamping block 54. After clamping, in order to maintain the sealing effect between the injection needle and the battery injection port during liquid injection, the first clamping block 53 and the second clamping block 54 are initially elastically lifted. Under the pressure of the injection needle, the first clamping block 53 and the second clamping block 54 will adaptively descend to maintain the sealing effect between the injection needle and the battery injection port, resulting in better quality during liquid injection.

[0083] Preferably, the guide rail structure 55 includes movable grooves 56 respectively formed in the first clamping seat 51 and the second clamping seat 52. The movable groove 56 is equipped with a second longitudinal guide rail 57. The movable groove 56 is also equipped with a lifting compression spring 58 that elastically lifts the first clamping block 53 and the second clamping block 54, so that the first clamping block 53 and the second clamping block 54 can elastically contact the injection needle.

[0084] Specifically, an elastic connector 6 is provided between the first clamping seat 51 and the second clamping seat 52, which contacts the movable member 7. The elastic connector 6 is elastically connected to the second clamping seat 52, and the elastic connector 6 and the movable member 7 are always in contact. When the movable member 7 moves along the length of the first clamping seat 51, the elastic connector 6 will move closer to or away from the first clamping seat 51 to drive the second clamping seat 52 to move synchronously. Since the elastic connector 6 is elastically connected to the second clamping seat 52, initially, the second clamping seat 52 is always elastically close to the first clamping seat 51 and is in a closed state. When the movable member 7 moves along the length of the first clamping seat 51, the movable member 7 will cooperate with the elastic connector 6. The movable member 7 makes room for a part of the elastic connector 6 to move closer to the first clamping seat 51. Under the action of elasticity, the elastic connector 6 moves towards the first clamping seat 51, so that the second clamping seat 52 moves away from the first clamping seat 51, forming an open fixture posture.

[0085] Specifically, the movable component 7 includes a first wedge-shaped block 74 that moves along the length of the first clamping seat 51, and the elastic connecting component 6 includes a movable drive plate 62 disposed on the outside of the first clamping seat 51. The movable drive plate 62 will move closer to the first clamping seat 51 under elastic action. The elastic connecting component 6 also includes a rolling component 66 mounted on the movable drive plate 62 and rollingly engaging with the first wedge-shaped block 74. When the first wedge-shaped block 74 moves along the length of the first clamping seat 51, the rolling component 66 will move closer to or away from the first clamping seat. 51; When an external force is applied to the first movable member 7, when the first wedge block 74 moves forward, the inclined surface of the first wedge block 74 rolls with the rolling member 66. Under the action of the inclined surface of the first wedge block 74, the rolling member 66 will approach the first clamping seat 51. At the same time, the movable drive plate 62 used to install the rolling member 66 will approach the first clamping seat 51. Under the action of elasticity, the elastic connecting member 6 moves towards the first clamping seat 51, so that the second clamping seat 52 moves away from the first clamping seat 51, forming an open fixture posture.

[0086] In one embodiment, a first movable rod 61 is installed between the movable drive plate 62 and the second clamping seat 52. The first clamping seat 51 has a first movable hole 63 formed along its width direction for the first movable rod 61 to move through. The first movable hole 63 is provided with a first compression spring 64 nested in the first movable rod 61. The first compression spring 64 elastically drives the movable drive plate 62 closer to the first clamping seat 51. When the first wedge block 74 moves forward under the action of external force, the inclined surface of the first wedge block 74 rolls with the rolling element 66. Under the elastic action of the first compression spring 64, the movable drive plate 62 connected to the first movable rod 61 moves the first movable rod 61 along the first movable hole 63 of the first clamping seat 51 toward the second clamping seat 52, so that the second clamping seat 52, which is connected to the first movable rod 61 at one end, moves away from the first clamping seat 51, thereby opening.

[0087] In one embodiment, the movable component 7 includes a second movable hole 72 opened along the length direction of the first clamping seat 51. A second movable rod 71 is installed in the movable hole, and a first wedge block 74 is installed on the second movable rod 71. The second movable hole 72 is also provided with a second compression spring 73 nested in the second movable rod 71. The second compression spring 73 can drive one end of the movable rod to move elastically outward. When an external force is applied to the second movable rod 71, the second movable rod 71 moves along the second movable hole 72 of the first clamping seat 51, and the first wedge block 74 installed on the second movable rod 71 moves synchronously. At this time, it will roll and cooperate with the rolling component 66. The inclined surface formed by the first wedge block 74 allows the rolling component 66 to continuously approach the first clamping seat 51, realizing the opening posture of the fixture. When the external force is removed and no longer acts on the second movable rod 71, the second movable rod 71 will retract along the second movable hole 72 under the elastic action of the second compression spring 73. At this time, the inclined surface formed by the first wedge block 74 rolls with the rolling element 66, and the rolling element 66 moves away from the first clamping seat 51. At the same time, the first movable rod 61 moves away from the second clamping seat 52 along the first movable hole 63 of the first clamping seat 51, so that the second clamping seat 52, which is connected to the first movable rod 61 at one end, moves closer to the first clamping seat 51, thereby realizing the clamping of the fixture.

[0088] Preferably, the elastic force of the second compression spring 73 is greater than that of the first compression spring 64, thereby ensuring that when the second movable rod 71 retracts, the movable drive plate 62, on which the rolling element 66 is mounted, can be driven away from the first clamping seat 51 by the first wedge block 74.

[0089] Preferably, the first clamping seat 51 is formed with a limiting groove 67 for guiding and limiting the movement of the first wedge block 74. The limiting groove 67 can prevent the first wedge block 74 from moving beyond its stroke, so that the first wedge block 74 keeps in contact with the rolling element 66 and prevents the first wedge block 74 from failing to rebound.

[0090] Preferably, the rolling element 66 is a rolling bearing movably mounted on the movable drive plate 62.

[0091] In one embodiment, the movable drive plate 62 is formed with a rolling groove 65 for mounting the rolling element 66. The rolling groove 65 is mounted with a fixed shaft. The rolling element 66 is rotatably mounted in the rolling groove 65 via the fixed shaft. When the first wedge block 74 moves, the fixed element can roll around the rolling groove 65 and engage with the inclined surface of the first wedge block 74.

[0092] The liquid injection clamp 98 device also includes an opening and closing mechanism for driving the movable part 7 to move. The opening and closing mechanism includes a first push rod 75 arranged along the moving direction of the movable part 7. When the first push rod 75 extends, it can abut against the movable part 7 and move along the length direction of the first clamping seat 51. When it is necessary to open the fixture, the first push rod 75 extends, so that the movable part 7 moves forward along the length direction of the first clamping seat 51, driving the fixture to open. Conversely, when the first push rod 75 retracts, the fixture clamps accordingly.

[0093] Specifically, one end of the movable part 7 is equipped with a first drive seat 76 that cooperates with the first push rod 75, and the other end of the movable part 7 is equipped with a second drive seat 78. The second drive seat 78 is equipped with a second push rod 77, which can abut against one end of the movable part 7 of another battery fixture 5. In this embodiment, when the first push rod 75 moves forward, it will drive the second drive seat 78 at the other end of the first movable rod 61 to move to one side. When the second push rod 77 abuts against the first movable rod 61 of the adjacent fixture on the side and continues to move forward, the fixture on the side is simultaneously forced to open, so that the two fixtures open at the same time. Conversely, when the first push rod 75 retracts, the second push rod 77 retracts accordingly, and the two fixtures close and clamp at the same time.

[0094] Preferably, the first push rod 75 is driven by the telescopic cylinder to perform forward and backward movements.

[0095] The handling mechanism includes a support tray 97 and a transfer device 8 for moving the support tray 97. The support tray 97 is provided with multiple locking slots 79. The battery fixture 5 is positioned and installed on the support tray 97 through the locking slots 79, which can prevent the battery fixture 5 from shifting on the support tray 97 and ensure that the position of the battery fixture 5 will not shift when it is in conjunction with the injection needle.

[0096] The transfer device 8 also includes a guide rail assembly 80 and a drive mechanism 300 that drives the support tray 97 to move along the length of the guide rail assembly 80. The guide rail assembly 80 is provided with a first locking position 91 and a second locking position 92 that cooperate with the support tray 97. Both the first locking position 91 and the second locking position 92 are provided with a lifting and positioning structure 9. The second locking position 92 is provided with a sensing component 83 for detecting the opening and closing of the fixture of the support tray 97.

[0097] Driven by the drive mechanism 300, the support tray 97 moves along the guide rail assembly 80 between the first locking position 91 and the second locking position 92. When the support tray 97 moves to the first locking position 91 or the second locking position 92, it is lifted and positioned by the lifting and positioning structure 9 to prevent the support tray 97 from shifting and to ensure that the battery clamp is aligned with the sealing cavity. When the support tray 97 moves to the first locking position 91, the sensing component 83 can detect the opening status of the fixture to prevent the battery cell from being pressed into the unopened fixture and causing a safety accident.

[0098] Specifically, the sensing component 83 includes a sensor transmitter 84 disposed on one side of the moving direction of the support tray 97 and a sensor receiver 85 disposed opposite to the sensor transmitter 84. When the support tray 97 moves to the first locking position 91, the sensor transmitter 84 emits a light signal to the oppositely disposed sensor receiver 85. The light signal passes through the battery clamp disposed on the support tray 97 and can detect whether the battery clamp is open, so as to avoid the battery cell being pressed into the unopened fixture and causing a safety accident. At this time, the battery can be placed into the battery fixture 5.

[0099] Furthermore, the sensing component 83 also includes a push rod 88 that can laterally approach or move away from the support tray 97. When the sensing component 83 detects that the battery clamp is not open, the push rod 88 extends and contacts the battery clamp, causing the battery clamp to open so that the battery can be placed into the battery clamp for clamping.

[0100] Furthermore, the sensing assembly 83 also includes a first sensing support 86 for mounting the sensing transmitter 84 and a second sensing support 87 for mounting the sensing receiver 85. The sensing transmitter 84 and the sensing receiver 85 are laterally coaxially aligned to ensure the stability of light signal transmission and reception. The sensing transmitter 84 is arranged at intervals along the length of the first sensing support 86, which can perform sensing detection on multiple battery clamps of the support tray 97.

[0101] A push plate 89 is arranged above the sensor transmitter 84, and push rods 88 are installed on the push plate 89. Multiple push rods 88 are arranged at intervals on the push plate 89. When the push plate 89 extends, multiple push rods 88 extend simultaneously and contact the battery clamp, causing the battery clamp to open so that the battery can be placed into the battery clamp for clamping.

[0102] Preferably, the first sensing support base 86 is equipped with a transverse cylinder, which can drive the push plate 89 to move laterally closer to or further away from the support tray 97.

[0103] Specifically, the guide rail assembly 80 includes a support guide rail 81 arranged along the moving direction of the support tray 97. A support sliding seat 82 is slidably mounted on the support guide rail 81. The support sliding seat 82 is connected to the support tray 97. The support tray 97 is slidably connected to the support guide rail 81 through the support sliding seat 82. Under the drive of the drive mechanism 300, the support tray 97 can move between the first locking position 91 and the second locking position 92 along the length direction of the support guide rail 81.

[0104] Specifically, the drive mechanism 300 includes a movable seat 134 and a moving drive component for linear movement of the movable seat 134. The movable seat 134 is connected to the support tray 97. The moving drive component includes a bottom drive seat 130, a conveyor belt 131 arranged along the length direction of the bottom drive seat 130, a transmission wheel 132 for moving the conveyor belt 131, and a transmission seat 133 installed at the drive end of the conveyor belt 131. The transmission seat 133 is connected to the movable seat 134. Under the drive of the drive motor, the conveyor belt 131 is driven by the transmission wheel 132, and the transmission seat 133 moves along the length direction of the bottom drive seat 130, driving the movable seat 134 to move, so that the support tray 97 can move.

[0105] Preferably, the bottom drive seat 130 is provided with a transverse guide rail 135 along its length, and a transverse sliding seat 136 is slidably mounted on the transverse guide rail 135. The movable seat 134 is connected to the transverse sliding seat 136. When the movable seat 134 moves along the length of the bottom drive seat 130, the sliding connection between the transverse sliding seat 136 and the transverse guide rail 135 further improves the movement stability of the movable seat 134.

[0106] Furthermore, the movable seat 134 is equipped with a snap-fit ​​structure 137, which includes a snap-fit ​​lifting seat 138 capable of longitudinal movement. The top of the snap-fit ​​lifting seat 138 is formed with an insert block 139 that snaps into the support tray 97. Before the movable seat 134 moves, the snap-fit ​​lifting seat 138 rises and the insert block 139 is inserted into the positioning groove at the bottom of the support tray 97, so that the movable seat 134 is connected to the support tray 97.

[0107] Preferably, the movable seat 134 is equipped with a lifting cylinder 96, which drives the locking lifting seat 138 to move longitudinally.

[0108] Preferably, the movable seat 134 is longitudinally formed with a third longitudinal guide rail 140, and a longitudinal sliding seat 141 is slidably installed on the third longitudinal guide rail 140. The locking lifting seat 138 is installed on the longitudinal sliding seat 141. When the lifting cylinder 96 drives the locking lifting seat 138 to move longitudinally, the movable seat 134 moves longitudinally along the third longitudinal guide rail 140 through the longitudinal sliding seat 141 to achieve stable lifting.

[0109] The lifting and positioning structure 9 includes a positioning seat 93 and a lifting seat 94 that is longitudinally slidably installed on the positioning seat 93. A secondary positioning block 95 that can be embedded into the support tray 97 is installed on the top of the lifting seat 94. When the support tray 97 moves along the length direction of the support guide rail 81 to the first locking position 91 or the second locking position 92, the lifting and positioning structure 9 works, the lifting seat 94 rises, so that the secondary positioning block 95 cooperates with the fitting groove at the bottom of the support tray 97 to perform secondary positioning of the support tray 97, prevent the support tray 97 from shifting, and accurately position the support tray 97. At this time, it is vertically aligned with the injection cavity 100. After the injection cavity 100 is lowered, when the side plate is attached to the support tray 97, it can ensure the accuracy of the sealing connection, ensure the airtightness of the injection cavity 10, and facilitate vacuuming and vacuum injection.

[0110] Preferably, the positioning seat 93 is equipped with a lifting cylinder 96, which drives the locking lifting seat 94 to move longitudinally.

[0111] In summary, the present invention possesses the excellent characteristics described above, which enhances its effectiveness in use compared to previous technologies, making it a highly practical product.

[0112] The above description is only a preferred embodiment of the present invention. For those skilled in the art, there will be changes in the specific implementation and application scope based on the ideas of the present invention. The content of this specification should not be construed as a limitation of the present invention.

Claims

1. An integrated battery electrolyte filling mechanism, comprising an electrolyte filling device and an electrolyte filling clamp device that cooperates with the electrolyte filling device, characterized in that: The liquid injection device includes a liquid injection chamber that can move longitudinally, and the liquid injection chamber is equipped with a liquid injection component and a vacuuming component. The liquid injection assembly includes a liquid injection cup and a liquid inlet head communicating with the liquid injection cup, and a liquid injection needle is installed at the bottom of the liquid injection cup; the vacuum assembly includes multiple air extraction ports arranged in the liquid injection chamber. The liquid injection clamp device includes a battery fixture and a transport mechanism that drives the battery fixture to move closer to or away from the liquid injection cavity; the battery fixture includes a first clamping seat and a second clamping seat, the second clamping seat can elastically move closer to the first clamping seat, the first clamping seat is provided with a movable member, when the movable member moves to one side of the first clamping seat, the second clamping seat can move away from the first clamping seat, and when the movable member moves to the other side of the first clamping seat, the second clamping seat can elastically move closer to the first clamping seat; An elastic connector is provided between the first clamping seat and the second clamping seat to contact the movable part. The elastic connector is elastically connected to the second clamping seat and always keeps in contact with the movable part. When the movable part moves along the length direction of the first clamping seat, the elastic connector will move closer to or further away from the first clamping seat to drive the second clamping seat to move synchronously. The movable component includes a first wedge block that moves along the length of the first clamping seat. The elastic connecting component includes a movable drive plate disposed on the outside of the first clamping seat. Under elastic action, the movable drive plate will approach the first clamping seat. The elastic connecting component also includes a rolling element mounted on the movable drive plate and rollingly engaging with the first wedge block. When the first wedge block moves along the length of the first clamping seat, the rolling element will approach or move away from the first clamping seat. A first movable rod is installed between the movable drive plate and the second clamping seat. The first clamping seat has a first movable hole formed along its width for the first movable rod to move through. A first compression spring is provided in the first movable hole and nested in the first movable rod. The first compression spring elastically drives the movable drive plate to approach the first clamping seat.

2. The integrated battery electrolyte injection mechanism according to claim 1, characterized in that: The injection cavity includes an injection drive plate, and multiple side plates are installed on the side plate of the injection drive plate. The multiple side plates are spliced ​​with the injection drive plate to form an injection cavity; the air extraction port is arranged on the injection drive plate.

3. The integrated battery electrolyte injection mechanism according to claim 2, characterized in that: The inlet head is formed with a first injection chamber for liquid to pass through, and the injection cup is formed with a second injection chamber for transferring liquid. The bottom of the first injection chamber is connected to the second injection chamber. The first injection chamber is provided with a first plug that can move along the length direction of the first injection chamber. The bottom of the second injection chamber is formed with an injection port. The second injection chamber is provided with a second plug that controls the liquid to exit from the injection port. The second plug can be close to or away from the injection port.

4. The integrated battery electrolyte injection mechanism according to claim 3, characterized in that: The inlet head is connected to an inlet hole, which communicates with the first injection chamber. A drive head is connected to the top of the inlet head, and a first lifting drive component is installed on the drive head. The first lifting drive component is connected to the first plug. A guide sleeve is installed on the top of the first injection chamber to guide the top of the first plug through. A drive cavity is formed inside the drive head. The first lifting drive component includes a first lifting head that moves along the length of the drive cavity. The bottom of the first lifting head is connected to the first plug. The first plug can move along the length of the first injection chamber.

5. The integrated battery electrolyte injection mechanism according to claim 4, characterized in that: The top of the injection cup is equipped with a sealing cap, which has an injection hole for inserting a liquid inlet head. A sealing ring is fitted into the injection hole and nested outside the liquid inlet head. The injection cup is equipped with a pneumatic system, which includes an air inlet pipe that communicates with the second injection chamber. The sealing cap has a sealing hole for the top of the second plug to extend outward. The sealing cap is equipped with a second lifting head that can move longitudinally and is connected to the top of the second plug. A sealing rubber plug that can block the injection port is installed at the bottom of the second plug, and the injection needle is installed at the injection port.

6. The integrated battery electrolyte injection mechanism according to claim 1, characterized in that: The movable component includes a second movable hole opened along the length direction of the first clamping seat, a second movable rod installed in the movable hole, a first wedge block installed on the second movable rod, and a second compression spring nested in the second movable rod in the second movable hole. The second compression spring can drive one end of the second movable rod to move elastically outward.

7. The integrated battery electrolyte injection mechanism according to claim 6, characterized in that: The liquid injection clamp device further includes an opening and closing mechanism for driving the movable part to move. The opening and closing mechanism includes a first push rod arranged along the moving direction of the movable part. When the first push rod is extended, it can abut against the movable part moving along the length direction of the first clamping seat. A first drive seat that cooperates with the first push rod is installed at one end of the movable part, and a second drive seat is installed at the other end of the movable part. A second push rod is installed on the second drive seat, and the second push rod can abut against one end of the movable part of another battery fixture.

8. The integrated battery electrolyte filling mechanism according to claim 1, characterized in that: The transport mechanism includes a support tray for positioning and installing the battery fixture and a transfer device for moving the support tray. The transfer device includes a guide rail assembly and a drive mechanism for moving the support tray along the length of the guide rail assembly. The guide rail assembly is provided with a first locking position and a second locking position that cooperate with the support tray. Both the first locking position and the second locking position are provided with a lifting and positioning structure. The second locking position is provided with a sensing component for detecting the opening and closing of the liquid injection fixture of the support tray.

Images