Battery jig

Abstract

The utility model belongs to the technical field of jigs, and particularly relates to a battery jig which is characterized in that an upper cavity mechanism comprises an upper formation probe, a liquid injection nozzle, a liquid outlet nozzle, a switching valve and an upper shell provided with an upper cavity; the liquid injection nozzle, the liquid outlet nozzle and the switching valve are arranged on the upper shell and are communicated with the upper cavity; the lower cavity mechanism comprises a lower formation probe, a heating piece, a circuit board and a lower shell provided with a lower cavity; the lower formation probe, the circuit board and the heating piece are all mounted on the lower shell; the liquid outlet nozzle is communicated with the internal space of the battery, the upper formation probe and the lower formation probe are electrically connected with the battery, a first valve hole of the switching valve is communicated with the internal space of the battery, and a second valve hole of the switching valve is communicated with the lower cavity. The battery jig can complete the work of baking, liquid injection, standing, high-temperature and high-pressure shelving, formation and the like of the battery, so that the integration level of the battery jig is improved, the manufacturing cost of the battery is reduced, and the quality of the battery is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of jig technology, and in particular relates to a battery jig. Background Technology

[0002] A battery consists of a casing and positive electrode material, negative electrode material, and electrolyte installed inside the casing. The electrolyte acts as a conductor of lithium ions between the positive and negative electrode materials. The battery manufacturing process typically involves baking, electrolyte filling, settling, and formation processes.

[0003] In battery production lines, processes such as baking, electrolyte injection, settling, and formation are all completed by independent equipment. The transfer of batteries between each station requires automated components such as robotic arms and mobile carts. Each station also needs to be equipped with a corresponding carrier for installing batteries. The transfer of batteries between various carriers inevitably damages the batteries, thus affecting their quality. Furthermore, the design of multiple carriers greatly increases the equipment cost of battery production lines. Summary of the Invention

[0004] The technical problem to be solved by this utility model is the low integration level and single function of battery carriers, and a battery fixture is provided.

[0005] To solve the above problems, the first embodiment of this utility model provides a battery fixture, including an upper cavity mechanism and a lower cavity mechanism;

[0006] The upper chamber mechanism includes an upper formation probe, an injection nozzle, an outlet nozzle, a switching valve, and an upper housing with an upper chamber; the injection nozzle, the outlet nozzle, and the switching valve are all mounted on the upper housing and are all connected to the upper chamber;

[0007] The lower cavity mechanism includes a lower formation probe, a heating element, a circuit board, and a lower housing with a lower cavity; the lower formation probe, the circuit board, and the heating element are all mounted on the lower housing, and the circuit board is electrically connected to the heating element and the lower formation probe; the heating element is used to heat the battery inside the lower cavity.

[0008] The upper housing is detachably mounted on the lower housing. The liquid outlet is connected to the internal space of the battery. The upper formation probe is electrically connected to the first electrode of the battery. The lower formation probe is electrically connected to the second electrode of the battery. The first valve port of the switching valve is connected to the internal space of the battery. The second valve port of the switching valve is connected to the lower chamber.

[0009] Optionally, the switching valve includes a valve core, a first valve nozzle with the first valve hole, a second valve nozzle with the second valve hole, and a valve body with a control hole. The valve body is mounted on the upper housing. The first valve nozzle and the second valve nozzle are both mounted on the valve body. The upper housing has a first channel connecting the first valve hole and the upper chamber, and the upper housing also has a second channel connecting the lower chamber.

[0010] The valve core is installed in the control hole and is used to control the end of the second channel away from the lower chamber to connect to the first valve hole or the second valve hole.

[0011] Optionally, the valve core includes a valve stem that is slidably inserted into the control hole, and the valve stem is provided with a sealing part that abuts against the inner wall of the control hole;

[0012] The valve body is also provided with a first air passage, a second air passage and a third air passage. The first air passage connects the first valve hole and the first channel, the second air passage connects the second channel, and the third air passage connects the second valve hole. The first air passage, the second air passage and the third air passage are respectively connected to the control hole through a first opening, a second opening and a third opening, and the first opening, the second opening and the third opening are sequentially spaced along the axial direction of the control hole.

[0013] When the blocking part slides into the control hole between the second opening and the third opening, the first valve hole also sequentially connects to the second channel through the first air passage, the control hole and the second air passage;

[0014] When the sealing part slides into the control hole between the first opening and the second opening, the second valve hole sequentially connects to the second channel through the third air passage, the control hole, and the second air passage.

[0015] Optionally, the valve core further includes a magnetic attractor installed in the control hole for magnetically attracting the valve stem; the magnetic attraction of the magnetic attractor to the valve stem is such that the sealing portion is located in the control hole between the second opening and the third opening.

[0016] Optionally, the battery fixture further includes a locking mechanism, through which the upper housing is detachably mounted on the lower housing.

[0017] Optionally, the locking mechanism includes an upper locking mold, a lower locking mold, a locking pin, a first lock cylinder, and a second lock cylinder; the upper locking mold is mounted on the upper housing and has an upper locking hole, and the lower locking mold is mounted on the lower housing and has a lower locking hole; the first lock cylinder and the second lock cylinder are both rotatably mounted in the lower locking hole;

[0018] The upper lock hole has a first protrusion and a second protrusion on its two opposite inner sidewalls, the first lock cylinder has a first groove that matches the first protrusion, and the second lock cylinder has a second groove that matches the second protrusion.

[0019] When the locking pin is inserted into the locking space between the first lock cylinder and the second lock cylinder, the first protrusion engages in the first groove, and the second protrusion engages in the second groove;

[0020] When the locking pin retracts from the locking space, the first protrusion disengages from the first groove, and the second protrusion disengages from the second groove.

[0021] Optionally, the locking mechanism further includes a first elastic element and a second elastic element, both installed in the lower lock hole; the first elastic element abuts against the first lock cylinder, and the second elastic element abuts against the second lock cylinder;

[0022] When the locking pin retracts from the locking space, the first elastic element drives the first lock cylinder to rotate so that the first protrusion disengages from the first groove, and the second elastic element drives the second lock cylinder to rotate so that the second protrusion disengages from the second groove.

[0023] Optionally, the locking mechanism further includes a third elastic element, a crossbar, a slide bar, a first seat, and a second seat with a through hole; the second seat is mounted on the upper housing, the first seat is mounted on the slide bar, and the end of the slide bar away from the first seat passes through the through hole and connects to the crossbar; the third elastic element is sleeved on the slide bar, and its opposite ends abut against the first seat and the second seat respectively; the third elastic element is used to drive the locking pin to be inserted into the locking space through the slide bar and the crossbar.

[0024] Optionally, the upper housing is further provided with a receiving groove, and the liquid outlet and the upper formation probe are both installed in the receiving groove; the lower cavity mechanism also includes a sealing ring sleeved on the lower housing;

[0025] The upper housing is mounted on the lower housing, the sealing ring is used to seal the connection gap between the upper housing and the lower housing, and the battery is installed in the lower chamber and the receiving groove.

[0026] Optionally, the upper cavity mechanism further includes a liquid level sensor, the first electrode of which is electrically connected to the outer wall of the liquid outlet, and the second electrode of which extends into the liquid outlet hole of the liquid outlet. The liquid level sensor detects whether electrolyte remains in the liquid outlet hole by checking whether the first and second electrodes are energized.

[0027] Optionally, the lower chamber mechanism further includes a pressure sensor mounted on the lower housing, the pressure sensor being used to detect the pressure in the lower chamber.

[0028] Optionally, the circuit board is provided with a power module, a first communication module, a second communication module, an attitude detection module, a management module, a smoke alarm module, a temperature control module, a position tracking module, and a dew point detection module;

[0029] The power module is used to supply power to the circuit board and the heating element;

[0030] The first communication module is used for the communication protocol between the circuit board and external devices when the circuit board is electrically connected to an external power source;

[0031] The second communication module is used for the communication protocol between the circuit board and external devices when the circuit board is disconnected from the external power supply;

[0032] The attitude detection module is used to detect the spatial attitude of the upper cavity mechanism and the lower cavity mechanism in real time;

[0033] The management module is used to identify the identity information of the upper cavity mechanism and the lower cavity mechanism;

[0034] The lower cavity mechanism includes a smoke sensor mounted on the lower housing for detecting smoke information in the lower cavity, and the smoke alarm module is used to issue a smoke abnormality alarm when the smoke sensor detects that the smoke level in the lower cavity is greater than a preset smoke value.

[0035] The temperature control module is used to manage the heating temperature of the heating element;

[0036] The position tracking module is used to track the positions of the upper cavity mechanism and the lower cavity mechanism;

[0037] The dew point detection module is used to detect the dew point information of the lower chamber in real time.

[0038] In this invention, the battery is installed in the lower chamber, and the upper shell is mounted on the lower shell. The electrolyte outlet connects to the internal space of the battery. Electrolyte can be injected into the upper chamber through the electrolyte outlet, and the electrolyte in the upper chamber can flow into the internal space of the battery through the electrolyte outlet, thus completing the electrolyte injection process. High-pressure gas can be injected into the internal space of the battery through the first valve port of the switching valve, or the internal space of the battery can be evacuated to a vacuum state. The pressure in the lower chamber where the battery is located can be controlled through the second valve port of the switching valve, thus enabling various operations such as positive pressure settling and negative pressure settling. The upper formation probe is electrically connected to the first electrode of the battery, and the lower formation probe is electrically connected to the second electrode of the battery. The circuit board enables the charging and discharging of the battery, thus completing the battery formation process. The circuit board can heat the battery in the lower chamber through the heating element, thus completing the battery baking process. This battery fixture can complete tasks such as baking, electrolyte injection, settling, high-temperature and high-pressure storage, and formation of batteries. The batteries do not need to be transferred between different carriers, which improves the integration of the battery fixture, reduces the manufacturing cost of batteries, and ensures the quality of batteries. Attached Figure Description

[0039] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0040] Figure 1 This is a schematic diagram of the structure of a battery fixture provided in one embodiment of the present invention;

[0041] Figure 2 A cross-sectional perspective view of a battery fixture provided in an embodiment of the present invention;

[0042] Figure 3 A schematic diagram of the upper cavity mechanism of a battery fixture provided in an embodiment of this utility model;

[0043] Figure 4 A schematic diagram of the lower cavity mechanism of a battery fixture provided in an embodiment of this utility model;

[0044] Figure 5 A cross-sectional view of the switching valve of a battery fixture provided in an embodiment of this utility model;

[0045] Figure 6 A schematic diagram of the locking mechanism of a battery fixture provided in an embodiment of this utility model;

[0046] Figure 7 A partial cross-sectional view of the locking mechanism of a battery fixture provided in an embodiment of the present invention;

[0047] Figure 8This is a schematic diagram of the circuit board of a battery fixture provided in one embodiment of the present invention.

[0048] The reference numerals in the accompanying drawings are as follows:

[0049] 1. Upper chamber mechanism; 11. Upper formation probe; 12. Injection nozzle; 13. Discharge nozzle; 14. Switching valve; 141. Valve core; 1411. Valve stem; 1412. Sealing part; 1413. Magnetic suction element; 142. First valve nozzle; 1421. First valve hole; 143. Second valve nozzle; 1431. Second valve hole; 144. Valve body; 1441. Control hole; 1442. First air passage; 1443. Second air passage; 1444. Third air passage; 1445. First opening; 1446. Second opening; 1447. Third opening; 15. Upper housing; 151. Upper chamber; 152. First channel; 153. Second channel; 154. Receiving groove; 16. Liquid level sensor;

[0050] 2. Lower cavity mechanism; 21. Lower formation probe; 22. Heating element; 23. Circuit board; 231. Power module; 232. First communication module; 233. Second communication module; 234. Attitude detection module; 235. Management module; 236. Smoke alarm module; 237. Temperature control module; 238. Position tracking module; 239. Dew point detection module; 2301. Pressure detection module; 24. Lower housing; 241. Lower chamber; 25. Sealing ring; 26. Pressure sensor;

[0051] 3. Locking mechanism; 31. Upper locking mold; 311. Upper locking hole; 312. First protrusion; 32. Lower locking mold; 321. Lower locking hole; 322. Second protrusion; 33. Locking pin; 34. First lock cylinder; 341. First groove; 35. Second lock cylinder; 351. Second groove; 36. First elastic element; 37. Second elastic element; 38. Third elastic element; 39. Crossbar; 301. Slide bar; 302. First base; 303. Second base; 304. Locking space; 100. Battery. Detailed Implementation

[0052] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0053] It should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of this utility model.

[0054] like Figure 1 As shown in the figure, a battery fixture provided in this embodiment of the present invention includes an upper cavity mechanism 1 and a lower cavity mechanism 2;

[0055] like Figure 3 As shown, the upper cavity mechanism 1 includes an upper formation probe 11, an injection nozzle 12, an outlet nozzle 13, a switching valve 14, and an upper housing 15 having an upper cavity 151. The injection nozzle 12, the outlet nozzle 13, and the switching valve 14 are all mounted on the upper housing 15 and are all connected to the upper cavity 151. It can be understood that the injection nozzle 12 is located at the top of the upper housing 15, the outlet nozzle 13 and the upper formation probe 11 are both mounted at the bottom of the upper housing 15, and the switching valve 14 can be mounted on the side of the upper housing 15.

[0056] like Figure 4 As shown, the lower cavity mechanism 2 includes a lower formation probe 21, a heating element 22, a circuit board 23, and a lower housing 24 with a lower cavity 241. The lower formation probe 21, the circuit board 23, and the heating element 22 are all mounted on the lower housing 24. The circuit board 23 is electrically connected to the heating element 22 and the lower formation probe 21. The heating element 22 is used to heat the battery 100 inside the lower cavity 241. It can be understood that the heating element 22 includes, but is not limited to, a heating sleeve. The heating sleeve can be installed inside the lower cavity 241 or sleeved on the lower housing 24.

[0057] like Figure 1 and Figure 2 As shown, the upper housing 15 is detachably mounted on the lower housing 24. The liquid outlet 13 communicates with the internal space of the battery 100. The upper formation probe 11 is electrically connected to the first electrode of the battery 100, and the lower formation probe 21 is electrically connected to the second electrode of the battery 100. The first valve port 1421 of the switching valve 14 communicates with the internal space of the battery 100, and the second valve port 1431 of the switching valve 14 communicates with the lower chamber 241. Understandably, one of the upper formation probe 11 and the lower formation probe 21 is connected to the positive terminal of the battery 100, and the other is connected to the negative terminal of the battery 100.

[0058] In this invention, the battery 100 is installed in the lower chamber 241, the upper shell 15 is installed on the lower shell 24, and the liquid outlet 13 communicates with the internal space of the battery 100. Electrolyte can be injected into the upper chamber 151 through the liquid inlet 12, and the electrolyte in the upper chamber 151 can flow into the internal space of the battery 100 through the liquid outlet 13, thereby completing the liquid filling operation of the battery 100. High-pressure gas can be injected into the internal space of the battery 100 through the first valve port 1421 of the switching valve 14, or the internal space of the battery 100 can be evacuated to a vacuum state. The pressure in the lower chamber 241 where the battery 100 is located can be controlled through the second valve port 1431 of the switching valve 14, thereby enabling various operations such as positive pressure settling and negative pressure settling of the battery 100. The upper formation probe 11 is electrically connected to the first electrode of the battery 100, and the lower formation probe 21 is electrically connected to the second electrode of the battery 100. The circuit board 23 can complete the charging and discharging of the battery 100, thereby completing the formation process of the battery 100. The circuit board 23 can heat the battery 100 in the lower chamber 241 through the heating element 22, thereby completing the baking process of the battery 100. This battery fixture can complete the baking, liquid injection, standing, high temperature and high pressure placement, and formation of the battery 100. The battery 100 does not need to be transferred between different carriers, which improves the integration of the battery fixture, reduces the manufacturing cost of the battery 100, and ensures the quality of the battery 100.

[0059] In one embodiment, such as Figure 1 and Figure 2 As shown, the switching valve 14 includes a valve core 141, a first valve nozzle 142 having a first valve hole 1421, a second valve nozzle 143 having a second valve hole 1431, and a valve body 144 having a control hole 1441. The valve body 144 is mounted on the upper housing 15. The first valve nozzle 142 and the second valve nozzle 143 are both mounted on the valve body 144. The upper housing 15 has a first channel 152 connecting the first valve hole 1421 and the upper chamber 151, and the upper housing 15 also has a second channel 153 connecting the lower chamber 241. It can be understood that the switching valve 14 includes, but is not limited to, a solenoid valve, a manual valve, etc. The first valve hole 1421 sequentially connects to the internal space of the battery 100 through the first channel 152, the upper chamber 151, and the liquid outlet 13.

[0060] The valve core 141 is installed in the control hole 1441 and is used to control the end of the second channel 153 away from the lower chamber 241 to connect to the first valve hole 1421 or the second valve hole 1431. It can be understood that the valve core 141 is located at one end in the control hole 1441 to control the end of the second channel 153 away from the lower chamber 241 to connect to the first valve hole 1421 or the second valve hole 1431.

[0061] Specifically, when the valve core 141 controls the end of the second channel 153 away from the lower chamber 241 to connect to the first valve port 1421, the first valve port 1421 sequentially connects to the internal space of the battery 100 through the first channel 152, the upper chamber 151 and the liquid outlet 13. The first valve port 1421 also sequentially connects to the lower chamber 241 through the control port 1441 and the second channel 153. The first valve port 142 can be used to evacuate the internal space of the battery 100 and the lower chamber 241, and can ensure that the pressure of the internal and external environments of the battery 100 is the same, thereby completing the negative pressure formation of the battery 100.

[0062] When the valve core 141 controls the end of the second channel 153 away from the lower chamber 241 to connect to the second valve port 1431, the first valve port 1421 sequentially connects to the internal space of the battery 100 through the first channel 152, the upper chamber 151 and the liquid outlet 13. The second valve port 1431 sequentially connects to the lower chamber 241 through the control port 1441 and the second channel 153. The air pressure in the internal space of the battery 100 can be adjusted independently through the first valve port 142, and the pressure in the lower chamber 241 where the battery 100 is located can be adjusted independently through the second valve port 143. Thus, the positive and negative pressures in the internal space of the battery 100 and the lower chamber 241 can be alternated according to a preset pattern to meet the requirements of immersion and static placement, high temperature and high pressure placement, etc. after the battery 100 is filled with liquid.

[0063] In one embodiment, the battery fixture further includes a smoke sensor (not shown) connected to the first valve port 1421, the smoke sensor being used to detect the smoke content in the first valve port 1421. Understandably, the smoke sensor can be mounted on the switching valve 14 or on a pipe connected to the first valve port 1421. An external vacuum device can be connected to the first valve port 1421 via a pipe.

[0064] When the battery burns in the lower chamber 241, smoke enters the first valve port 1421. The smoke sensor detects that the smoke content in the first valve port 1421 exceeds the standard. The vacuum device then extracts gas from the lower chamber 241 and / or the battery 100 through the first valve port 1421, thereby reducing the oxygen content in the lower chamber 241 and the battery 100. This reduction in oxygen content can extinguish the fire in the battery fixture from within, ensuring the safety of the battery fixture. Furthermore, the battery fixture has a simple structure and low manufacturing cost.

[0065] In one embodiment, such as Figure 2 and 5 As shown, the valve core 141 includes a valve stem 1411 slidably inserted into the control hole 1441. The valve stem 1411 is provided with a sealing portion 1412 that abuts against the inner wall of the control hole 1441. Understandably, the top of the valve stem 1411 extends out of the control hole 1441, and the sealing portion 1412 includes, but is not limited to, a sealing ring 25 sleeved on the valve stem 1411. The valve stem 1411 is also provided with a sealing portion that abuts against the inner wall of the control hole 1441, and the sealing portion is used to seal the control hole 1441 from the external environment.

[0066] The valve body 144 is further provided with a first air passage 1442, a second air passage 1443, and a third air passage 1444. The first air passage 1442 connects the first valve hole 1421 and the first channel 152, the second air passage 1443 connects the second channel 153, and the third air passage 1444 connects the second valve hole 1431. The first air passage 1442, the second air passage 1443, and the third air passage 1444 are respectively connected to the control hole 1441 through a first opening 1445, a second opening 1446, and a third opening 1447, and the first opening 1445, the second opening 1446, and the third opening 1447 are sequentially spaced along the axial direction of the control hole 1441. It can be understood that the second opening 1446 is located between the first opening 1445 and the third opening 1447.

[0067] When the blocking part 1412 slides into the control hole 1441 between the second opening 1446 and the third opening 1447, the first valve hole 1421 also sequentially connects to the second channel 153 through the first air passage 1442, the control hole 1441 and the second air passage 1442.

[0068] Specifically, when the sealing part 1412 is located in the control hole 1441 between the second opening 1446 and the third opening 1447, the first valve hole 1421 sequentially connects to the internal space of the battery 100 through the first channel 152, the upper chamber 151 and the liquid outlet 13. The first valve hole 1421 also sequentially connects to the lower chamber 241 through the control hole 1441 and the second channel 153. The third air passage 1444 does not connect to the second channel 153 (the control hole 1441 between the third air passage 1444 and the second air passage 1443 is blocked by the sealing part 1412).

[0069] When the sealing part 1412 slides into the control hole 1441 between the first opening 1445 and the second opening 1446, the second valve hole 1431 sequentially connects to the second channel 153 through the third air passage 1444, the control hole 1441 and the second air passage 1442.

[0070] Specifically, when the sealing part 1412 is located in the control hole 1441 between the second opening 1446 and the third opening 1447, the first valve hole 1421 sequentially connects to the internal space of the battery 100 through the first air passage 1442, the upper chamber 151 and the liquid outlet 13. The first valve hole 1421 also sequentially connects to the lower chamber 241 through the first air passage 1442, the control hole 1441 and the second channel 153. The third air passage 1444 does not connect to the control hole 1441, so the third air passage 1444 is in a blocked state with the second channel 153 and the first channel 152 (the control hole 1441 between the third air passage 1444 and the second air passage 1443 is blocked by the sealing part 1412).

[0071] In one embodiment, such as Figure 4As shown, the valve core 141 further includes a magnetic attractor 1413 installed in the control hole 1441 and used to magnetically attract the valve stem 1411; the magnetic attraction force of the magnetic attractor 1413 on the valve stem 1411 is such that the sealing part 1412 is located in the control hole 1441 between the second opening 1446 and the third opening 1447. It is understood that the magnetic attractor 1413 includes, but is not limited to, magnets, etc., and the valve stem 1411 is made of, but is not limited to, iron or steel materials; the magnetic attractor 1413 is located below the valve stem 1411 and always has a downward magnetic attraction force on the valve stem 1411. In this embodiment, when there is no pulling force, the magnetic attraction of the magnetic member 1413 on the valve stem 1411 causes the sealing part 1412 to be located in the control hole 1441 between the second opening 1446 and the third opening 1447. Thus, the first valve hole 1421 not only connects to the internal space of the battery 100, but also connects to the lower chamber 241. At this time, the switching valve 14 is in the normal state, which improves the convenience of the battery fixture.

[0072] In one embodiment, such as Figure 1 As shown, the battery fixture also includes a locking mechanism 3, through which the upper housing 15 is detachably mounted on the lower housing 24. Understandably, the locking mechanism 3 includes, but is not limited to, various plug-in locking mechanisms 3, etc. The design of the locking mechanism 3 ensures the stability of the upper housing 15 mounted on the lower housing 24.

[0073] In one embodiment, such as Figure 1 , Figure 6 as well as Figure 7 As shown, the locking mechanism 3 includes an upper locking mold 31, a lower locking mold 32, a locking pin 33, a first lock cylinder 34, and a second lock cylinder 35. The upper locking mold 31 is mounted on the upper housing 15 and has an upper locking hole 311, and the lower locking mold 32 is mounted on the lower housing 24 and has a lower locking hole 321. The first lock cylinder 34 and the second lock cylinder 35 are both rotatably mounted in the lower locking hole 321. It can be understood that the first lock cylinder 34 and the second lock cylinder 35 are both fixed on the lower locking mold 32, the upper locking mold 31 is located directly above the lower locking mold 32, and a portion of the first lock cylinder 34 and the second lock cylinder 35 are located in the upper locking hole 311.

[0074] The upper locking hole 311 has a first protrusion 312 and a second protrusion 322 on its two opposite inner sidewalls, the first lock cylinder 34 has a first groove 341 adapted to the first protrusion 312, and the second lock cylinder 35 has a second groove 351 adapted to the second protrusion 322. It can be understood that the first protrusion 312 protrudes toward the first lock cylinder 34, and the second protrusion 322 protrudes toward the second lock cylinder 35.

[0075] When the locking pin 33 is inserted into the locking space 304 between the first lock cylinder 34 and the second lock cylinder 35, the first protrusion 312 engages in the first groove 341, and the second protrusion 322 engages in the second groove 351. Specifically, during the process of the locking pin 33 being inserted into the locking space 304, the locking pin 33 drives the first lock cylinder 34 and the second lock cylinder 35 to rotate until the first protrusion 312 engages in the first groove 341, and the second protrusion 322 engages in the second groove 351. In the second groove 351, the first lock cylinder 34 is fixed to the lower lock mold 32 by a rotating shaft. The first lock cylinder 34 is also connected to the upper lock mold 31 by a first protrusion 312 that is engaged in the first groove 341. Similarly, the second lock cylinder 35 is fixed to the lower lock mold 32 by a rotating shaft. The second lock cylinder 35 is also connected to the upper lock mold 31 by a second protrusion 322 that is engaged in the second groove 351. Thus, the locking mechanism 3 can lock the upper housing 15 and the lower housing 24.

[0076] When the locking pin 33 retracts from the locking space 304, the first protrusion 312 disengages from the first groove 341, and the second protrusion 322 disengages from the second groove 351. Specifically, when the locking pin 33 retracts from the locking space 304, the first lock cylinder 34 and the second lock cylinder 35 will rotate, the first protrusion 312 will disengage from the first groove 341, and the second protrusion 322 will disengage from the second groove 351, thereby placing the upper locking mold 31 and the lower locking mold 32 in an unlocked state, thus completing the disassembly of the lower housing 24 and the upper housing 15. In this embodiment, the locking mechanism 3 has a simple structure, low manufacturing cost, and convenient operation.

[0077] In one embodiment, such as Figure 7As shown, the locking mechanism further includes a first elastic element 36 and a second elastic element 37, both installed in the lower locking hole 321; the first elastic element 36 abuts against the first lock cylinder 34, and the second elastic element 37 abuts against the second lock cylinder 35; it can be understood that the first elastic element 36 and the second elastic element 37 include, but are not limited to, springs, elastic pins, etc., the first elastic element 36 abuts against the side wall of the first lock cylinder 34, and the second elastic element 37 abuts against the side wall of the second lock cylinder 35.

[0078] When the locking pin 33 is disengaged from the locking space 304, the first elastic element 36 drives the first lock cylinder 34 to rotate, causing the first protrusion 312 to disengage from the first groove 341, and the second elastic element 37 drives the second lock cylinder 35 to rotate, causing the second protrusion 322 to disengage from the second groove 351. Specifically, when the locking pin 33 is inserted into the locking space 304, the first lock cylinder 34 compresses the first elastic element 36, and the second lock cylinder 35 compresses the second elastic element 37; when the locking pin 33 is pulled out of the locking space 304, the rebound force of the first elastic element 36 causes the first lock cylinder 34 to rotate, and the first lock cylinder 34 will automatically rotate until the first protrusion 312 disengages from the first groove 341, and the rebound force of the second elastic element 37 causes the second lock cylinder 35 to rotate, and the second lock cylinder 35 will automatically rotate until the second protrusion 322 disengages from the second groove 351. In this embodiment, the design of the first elastic element 36 and the second elastic element 37 improves the ease of unlocking the locking mechanism 3.

[0079] In one embodiment, such as Figure 1 and Figure 6 As shown, the locking mechanism 3 further includes a third elastic element 38, a crossbar 39, a slide bar 301, a first seat 302, and a second seat 303 with a through hole. The second seat 303 is mounted on the upper housing 15, and the first seat 302 is mounted on the slide bar 301. One end of the slide bar 301 away from the first seat 302 passes through the through hole and connects to the crossbar 39. The third elastic element 38 is sleeved on the slide bar 301, and its opposite ends abut against the first seat 302 and the second seat 303, respectively. The third elastic element 38 is used to drive the locking pin 33 to be inserted into the locking space 304 through the slide bar 301 and the crossbar 39. It can be understood that the third elastic element 38 includes, but is not limited to, a spring, etc. The third elastic element 38 is compressed between the first seat 302 and the second seat 303, and the slide bar 301 can slide along the through hole.

[0080] Specifically, when no pulling force is applied to the crossbar 39 and / or the locking pin 33, the third elastic element 38 exerts a downward pulling force on the slide bar 301 through the first seat 302, and the slide bar 301 allows the locking pin 33 to be inserted into the locking space 304 through the crossbar 39. When an upward pulling force is applied to the crossbar 39, the crossbar 39 drives the locking pin 33 and the slide bar 301 to move upward, allowing the locking pin 33 to disengage from the locking space 304, and the slide bar 301 to compress the third elastic element 38 through the first seat 302. In this embodiment, the design of the third elastic element 38 ensures that the locking mechanism 3 is in a locked state when no pulling force is applied, and the upper housing 15 is locked to the lower housing 24 by the locking mechanism 3, preventing accidents such as electrolyte sloshing and electrolyte leakage during the handling of the battery fixture.

[0081] In one embodiment, such as Figure 1 and Figure 2 As shown, the upper housing 15 is also provided with a receiving groove 154, and the liquid outlet 13 and the upper formation probe 11 are both installed in the receiving groove 154; the lower cavity mechanism also includes a sealing ring 25 sleeved on the lower housing 24; it can be understood that the receiving groove 154 is located below the upper cavity 151, and the liquid outlet 13 and the upper formation probe 11 are both installed on the top of the receiving groove 154.

[0082] The upper housing 15 is mounted on the lower housing 24. The sealing ring 25 is used to seal the connection gap between the upper housing 15 and the lower housing 24. The battery 100 is mounted in the lower chamber 241 and the receiving groove 154. Understandably, the lower part of the battery 100 is mounted in the lower chamber 241, and the upper part of the battery 100 extends from above the lower chamber 241. When the upper housing 15 is mounted on the lower housing 24, the upper part of the battery 100 is located in the receiving groove 154, and the liquid outlet 13 automatically connects to the internal space of the battery 100. The upper formation probe 11 automatically connects to the first electrode of the battery 100. In this embodiment, when the upper housing 15 is mounted on the lower housing 24, the sealing ring 25 abuts against the bottom of the upper housing 15, thereby sealing the connection gap between the upper housing 15 and the lower housing 24, ensuring the airtightness of the upper housing 15 mounted on the lower housing 24.

[0083] To further explain, the end of the second air passage 1443 away from the control hole 1441 is connected to the receiving groove 154. When the upper housing 15 is installed on the lower housing 24, the end of the second air passage 1443 away from the control hole 1441 is connected to the receiving groove 154 and the lower chamber 241.

[0084] In one embodiment, such as Figure 2 As shown, the upper cavity mechanism 1 further includes a liquid level sensor 16. The first electrode of the liquid level sensor 16 is electrically connected to the outer wall of the liquid outlet 13, and the second electrode of the liquid level sensor 16 extends into the liquid outlet hole of the liquid outlet. The liquid level sensor 16 detects whether electrolyte remains in the liquid outlet hole by checking whether the first electrode and the second electrode are energized. Understandably, the liquid outlet 13 can be made of stainless steel. Of the first electrode and the second electrode, one is a positive electrode and the other is a negative electrode. Preferably, both the first electrode and the second electrode are negative electrodes.

[0085] In this embodiment, when the second electrode contacts the electrolyte in the outlet hole, the first electrode, the outlet nozzle 13, the electrolyte, the second electrode, and the liquid level sensor 16 form a complete conductive circuit, thereby the liquid level sensor 16 detects that a significant amount of electrolyte remains in the outlet hole. When the second electrode does not contact the electrolyte in the outlet hole, the first electrode, the outlet nozzle 13, the electrolyte, the second electrode, and the liquid level sensor 16 do not form a complete conductive circuit, thereby the liquid level sensor 16 detects that there is no electrolyte or only a very small amount remains in the outlet hole. In this invention, the liquid level sensor 16 detects whether electrolyte remains in the outlet hole by checking whether the first and second electrodes are energized. The liquid level sensor 16 does not occupy much space in the outlet hole, ensuring the smooth injection of electrolyte into the battery by the outlet nozzle 13. Furthermore, the liquid level sensor 16 has a simple structure and low manufacturing cost.

[0086] In one embodiment, such as Figure 3 As shown, the lower chamber mechanism 2 also includes a pressure sensor 26 mounted on the lower housing 24. The pressure sensor 26 is used to detect the pressure in the lower chamber 241. Understandably, the detection end of the pressure sensor 26 is located inside the lower chamber 241. The pressure sensor 26 can detect the pressure in the lower chamber 241 in real time, thereby improving the convenience of the battery fixture and ensuring the accuracy of the pressure control of the lower chamber 241 by the switching valve 14.

[0087] To further explain, the lower cavity mechanism 2 may also include a heat sink disposed opposite to the circuit board, a battery 100 electrically connected to the circuit board, etc. The heat sink can dissipate heat from the circuit board, and the battery 100 can supply power to the circuit board 23 and other electrical components.

[0088] In one embodiment, such as Figure 8 As shown, the circuit board 23 is equipped with a power module 231, a first communication module 232, a second communication module 233, an attitude detection module 234, a management module 235, a smoke alarm module 236, a temperature control module 237, a position tracking module 238, and a dew point detection module 239.

[0089] The power module 231 supplies power to the circuit board 23 and the heating element 22. Preferably, the circuit board 23 is also provided with a charger interface, through which the circuit board is electrically connected to an external power source. During the charging and discharging process of the battery 100, the external power source mainly supplies power to the battery 100. It can be understood that when the circuit board 23 is disconnected from the external power source, the power module 231 can still supply power to the circuit board 23, thereby ensuring the normal operation of the battery fixture.

[0090] The first communication module 232 is used for the communication protocol between the circuit board 23 and external devices when the circuit board 23 is electrically connected to an external power source. It can be understood that the first communication module 232 includes, but is not limited to, a CAN communication module, etc., and various information detected by the circuit board 23 can be transmitted to external devices (controllers, displays, etc.) through the first communication module 232.

[0091] The second communication module 233 is used for the communication protocol between the circuit board 23 and external devices when the circuit board 23 is disconnected from the external power supply. It can be understood that the second communication module 233 includes, but is not limited to, LoRa wireless communication modules. LoRa is a low-power wide-area network with advantages such as low power consumption, large coverage, and strong anti-interference ability. Specifically, when the circuit board 23 is disconnected from the external power supply and the first communication module 232 is in a failed state, the communication protocol between the circuit board 23 and external devices is completed by the second communication module 233, which further ensures the normal operation of the battery fixture.

[0092] The attitude detection module 234 is used to detect the spatial attitude of the upper cavity mechanism 1 and the lower cavity mechanism 2 in real time. It can be understood that the attitude detection module 234 includes, but is not limited to, a gyroscope, etc. The attitude detection module 234 can detect the spatial attitude of the battery fixture in real time and determine whether the battery fixture is tilted or tipped over.

[0093] The management module 235 is used to identify the identity information of the upper cavity mechanism 1 and the lower cavity mechanism 2. Understandably, the upper housing 15 or the lower housing 24 is provided with a fixture label, and the management module 235 can mark the battery fixture using this label. Specifically, before the battery 100 is installed on the battery fixture, the battery label, such as a QR code or barcode, needs to be scanned. After the battery label is identified, the battery is installed in the lower cavity 241. Finally, the battery removed from the battery fixture has a corresponding fixture label, thus facilitating data traceability of the battery 100.

[0094] The lower cavity mechanism 2 includes a smoke sensor (not shown in the figure) mounted on the lower housing 24 and used to detect smoke information in the lower cavity 241. The smoke alarm module 236 is used to issue a smoke abnormality alarm when the smoke sensor detects that the smoke level in the lower cavity 241 is greater than a preset smoke value. Understandably, the design of the smoke alarm module 236 ensures the safety of the battery fixture and avoids fire accidents caused by the battery fixture.

[0095] The temperature control module 237 is used to manage the heating temperature of the heating element 22; it can be understood that the temperature control module 237 can control the heating temperature of the heating element 22 to avoid the heating element 22 from having an excessively high or low heating temperature.

[0096] The position tracking module 238 is used to track the positions of the upper cavity mechanism 1 and the lower cavity mechanism 2. Understandably, the position tracking module 238 is mainly used to track the specific coordinates of the battery fixture on the production line, facilitating maintenance and secondary confirmation of data binding, and improving the stability of production line operations.

[0097] The dew point detection module 239 is used to detect the dew point information of the lower chamber 241 in real time. Understandably, batteries have high requirements for environmental humidity. The dew point detection module 239 detects the dew point information of the lower chamber 241 in real time and transmits the detected dew point information to an external device via the first communication module 232 or the second communication module 233. Therefore, the dew point information detected by the dew point detection module 239 can be used for pre-tightening or data traceability.

[0098] In this embodiment, the circuit board 23 integrates various modules, each of which can perform a specific task, thus improving the automation level of the battery fixture. Furthermore, the high integration of the circuit board 23 saves significant costs associated with signal sources, controllers, and wiring, and also enables the battery fixture to send position, pressure, and temperature information to external electrical components even when disconnected from an external power source.

[0099] Furthermore, the circuit board 23 is also provided with a pressure detection module 2301, which can detect the pressure of the lower chamber 241 in real time, and other modules can also be set on the circuit board 23 according to actual needs.

[0100] The above are merely embodiments of the battery fixture of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A battery fixture, comprising: The battery fixture comprises an upper cavity mechanism and a lower cavity mechanism; The upper cavity mechanism comprises an upper formation probe, a liquid injection nozzle, a liquid outlet nozzle, a switching valve and an upper shell provided with an upper cavity chamber; the liquid injection nozzle, the liquid outlet nozzle and the switching valve are all mounted on the upper shell and all communicate with the upper cavity chamber; The lower cavity mechanism comprises a lower formation probe, a heating element, a circuit board and a lower shell provided with a lower cavity chamber; the lower formation probe, the circuit board and the heating element are all mounted on the lower shell, the circuit board is electrically connected with the heating element and the lower formation probe, and the heating element is used for heating a battery in the lower cavity chamber; The upper shell is detachably mounted on the lower shell, the liquid outlet nozzle communicates with an internal space of the battery, the upper formation probe is electrically connected with a first electrode of the battery, the lower formation probe is electrically connected with a second electrode of the battery, a first valve hole of the switching valve communicates with the internal space of the battery, and a second valve hole of the switching valve communicates with the lower cavity chamber.

2. The battery fixture of claim 1, wherein, The switching valve comprises a valve core, a first valve nozzle provided with the first valve hole, a second valve nozzle provided with the second valve hole and a valve body provided with a control hole, and the valve body is mounted on the upper shell; the first valve nozzle and the second valve nozzle are both mounted on the valve body, the upper shell is provided with a first channel communicating the first valve hole and the upper cavity chamber, and the upper shell is further provided with a second channel communicating with the lower cavity chamber; The valve core is mounted in the control hole and is used for controlling the second channel to communicate with the first valve hole or the second valve hole at an end away from the lower cavity chamber.

3. The battery fixture of claim 2, wherein, The valve core comprises a valve rod slidingly inserted into the control hole, and the valve rod is provided with a plugging part abutting against an inner wall of the control hole; The valve body is further provided with a first air channel, a second air channel and a third air channel, the first air channel communicates the first valve hole and the first channel, the second air channel communicates the second channel, and the third air channel communicates the second valve hole; The first air channel, the second air channel and the third air channel respectively communicate with the control hole through a first opening, a second opening and a third opening, and the first opening, the second opening and the third opening are sequentially and spacedly distributed along an axial direction of the control hole; When the plugging part slides into the control hole between the second opening and the third opening, the first valve hole further sequentially communicates with the second channel through the first air channel, the control hole and the second air channel; When the plugging part slides into the control hole between the first opening and the second opening, the second valve hole sequentially communicates with the second channel through the third air channel, the control hole and the second air channel.

4. The battery fixture of claim 3, wherein, The valve core further comprises a magnetic attraction element mounted in the control hole and used for magnetically attracting the valve rod; the magnetic attraction element magnetically attracts the valve rod so that the plugging part is located in the control hole between the second opening and the third opening.

5. The battery fixture of claim 1, wherein, The battery fixture further comprises a locking mechanism, and the upper shell is detachably mounted on the lower shell through the locking mechanism.

6. The battery fixture of claim 5, wherein, The locking mechanism comprises an upper lock, a lower lock, a lock pin, a first lock core and a second lock core; the upper lock is installed on the upper shell and is provided with an upper lock hole, the lower lock is installed on the lower shell and is provided with a lower lock hole; the first lock core and the second lock core are both rotationally installed in the lower lock hole; First and second convex parts are respectively arranged on opposite inner side walls of the upper lock hole, the first lock core is provided with a first recess slot matched with the first convex part, and the second lock core is provided with a second recess slot matched with the second convex part; When the lock pin is inserted into the locking space between the first lock core and the second lock core, the first convex part is clamped in the first recess slot, and the second convex part is clamped in the second recess slot; When the lock pin exits the locking space, the first convex part is separated from the first recess slot, and the second convex part is separated from the second recess slot.

7. The battery fixture of claim 6, wherein, The locking mechanism further comprises first and second elastic members both installed in the lower lock hole; the first elastic member abuts against the first lock core, and the second elastic member abuts against the second lock core; When the lock pin exits the locking space, the first elastic member drives the first lock core to rotate so that the first convex part is separated from the first recess slot, and the second elastic member drives the second lock core to rotate so that the second convex part is separated from the second recess slot.

8. The battery fixture of claim 6, wherein, The locking mechanism further comprises a third elastic member, a crossbar, a slide bar, a first seat and a second seat provided with a through hole; the second seat is installed on the upper shell, the first seat is installed on the slide bar, one end of the slide bar away from the first seat penetrates through the through hole and is connected with the crossbar; the third elastic member is sleeved on the slide bar and abuts against the first seat and the second seat at opposite ends; the third elastic member is used to drive the lock pin to be inserted into the locking space through the slide bar and the crossbar.

9. The battery fixture of claim 1, wherein, The upper shell is further provided with a containing recess, the liquid outlet nozzle and the upper formation probe are both installed in the containing recess; the lower cavity mechanism further comprises a sealing ring sleeved on the lower shell; The upper shell is installed on the lower shell, the sealing ring is used to seal the connecting gap between the upper shell and the lower shell, and the battery is installed in the lower cavity and the containing recess.

10. The battery fixture of claim 1, wherein, The upper cavity mechanism further comprises a liquid level sensor, a first electrode of the liquid level sensor is electrically connected with the outer wall of the liquid outlet nozzle, and a second electrode of the liquid level sensor extends into the liquid outlet hole of the liquid outlet nozzle; the liquid level sensor detects whether electrolyte remains in the liquid outlet hole through whether the first electrode and the second electrode are electrified; And / or The lower cavity mechanism further comprises a pressure sensor installed on the lower shell, and the pressure sensor is used to detect the pressure of the lower cavity.

11. The battery fixture of claim 1, wherein, The circuit board is provided with a power module, a first communication module, a second communication module, a posture detection module, a management module, a smoke alarm module, a temperature control module, a position tracking module and a dew point detection module; The power module is used to supply power to the circuit board and the heating member; The first communication module is used for a communication protocol between the circuit board and external devices when the circuit board is electrically connected with an external power supply; The second communication module is used for a communication protocol between the circuit board and external devices when the circuit board is disconnected with the external power supply; The posture detection module is used for detecting spatial postures of the upper cavity mechanism and the lower cavity mechanism in real time; The management module is used for identifying identity information of the upper cavity mechanism and the lower cavity mechanism; The lower cavity mechanism comprises a smoke sensor installed on the lower shell and used for detecting smoke information in the lower cavity, and the smoke alarm module is used for issuing a smoke abnormality alarm when the smoke sensor detects that a smoke degree in the lower cavity is greater than a preset smoke value; The temperature control module is used for managing a heating temperature of the heating element; The position tracking module is used for tracking positions of the upper cavity mechanism and the lower cavity mechanism; The dew point detection module is used for detecting dew point information of the lower cavity in real time.

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