Battery jig

Abstract

The invention belongs to the technical field of jigs, and particularly relates to a battery jig, 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] The invention belongs to the technical field of jigs, and in particular relates to a battery jig. Background Art

[0002] The battery consists of a shell and a positive electrode material, a negative electrode material and an electrolyte installed in the shell. The electrolyte can conduct lithium ions between the positive electrode material and the negative electrode material. During the manufacturing process of the battery, it usually needs to go through processes such as baking, injection, static and formation.

[0003] In the battery production line, processes such as baking, filling, standing and formation are all completed by independent equipment. The transfer of batteries between each workstation requires practical manipulators, mobile carts and other automated components, and each workstation needs to be equipped with corresponding carriers for installing batteries. The transfer of batteries between various carriers will inevitably damage the batteries, thereby affecting the quality of the batteries; and the design of multiple carriers has greatly increased the equipment cost of the battery production line. Summary of the invention

[0004] The technical problems to be solved by the present invention are: the low integration level and single function of battery carriers, and a battery fixture is provided.

[0005] To solve the above problems, a first embodiment of the present invention provides a battery fixture, including an upper chamber mechanism and a lower chamber mechanism; The upper chamber 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 chamber; the liquid injection nozzle, the liquid outlet nozzle and the switching valve are all mounted on the upper shell and are connected to the upper chamber; The lower chamber mechanism comprises a lower formation probe, a heating element, a circuit board and a lower shell with a lower 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 to the heating element and the lower formation probe, and the heating element is used to heat the battery in the lower chamber; The upper shell can be detachably mounted on the lower shell, 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 hole of the switching valve is connected to the internal space of the battery, and the second valve hole of the switching valve is connected to the lower chamber.

[0006] Optionally, 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, wherein 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, a first passage connecting the first valve hole and the upper chamber is provided on the upper shell, and a second passage connecting the lower chamber is also provided on the upper shell; The valve core is installed in the control hole and is used to control the end of the second passage away from the lower chamber to be connected to the first valve hole or the second valve hole.

[0007] Optionally, the valve core comprises a valve stem slidably inserted in the control hole, and the valve stem is provided with a blocking portion abutting against an inner wall of the control hole; The valve body is further provided with a first air passage, a second air passage and a third air passage, the first air passage is connected to the first valve hole and the first channel, the second air passage is connected to the second channel, and the third air passage is connected to the second valve hole; the first air passage, the second air passage and the third air passage are connected to the control hole through a first opening, a second opening and a third opening respectively, and the first opening, the second opening and the third opening are sequentially spaced and distributed along the axial direction of the control hole; When the blocking portion slides into the control hole between the second opening and the third opening, the first valve hole is also connected to the second channel through the first air channel, the control hole and the second air channel in sequence; When the blocking portion slides into the control hole between the first opening and the second opening, the second valve hole is connected to the second passage through the third air passage, the control hole, and the second air passage in sequence.

[0008] Optionally, the valve core also includes a magnetic attraction component installed in the control hole and used to magnetically attract the valve stem; the magnetic attraction force of the magnetic attraction component on the valve stem causes the blocking portion to be located in the control hole between the second opening and the third opening.

[0009] Optionally, the battery fixture further includes a locking mechanism, and the upper shell is detachably mounted on the lower shell through the locking mechanism.

[0010] Optionally, the locking mechanism comprises an upper locking mold, a lower locking mold, a locking pin, a first lock core and a second lock core; the upper locking mold is mounted on the upper shell and is provided with an upper locking hole, the lower locking mold is mounted on the lower shell and is provided with a lower locking hole; the first lock core and the second lock core are both rotatably mounted in the lower lock hole; The first convex part and the second convex part are respectively provided on the two opposite inner side walls of the upper lock hole, the first lock core is provided with a first groove matched with the first convex part, and the second lock core is provided with a second groove 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 protrusion is engaged in the first groove, and the second protrusion is engaged in the second groove; When the locking pin exits the locking space, the first protrusion is disengaged from the first groove, and the second protrusion is disengaged from the second groove.

[0011] Optionally, the locking mechanism further includes a first elastic member and a second elastic member 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 valve core; When the lock pin exits the locking space, the first elastic member drives the first lock core to rotate so that the first protrusion disengages from the first groove, and the second elastic member drives the second lock core to rotate so that the second protrusion disengages from the second groove.

[0012] Optionally, the locking mechanism also includes a third elastic member, a cross bar, a sliding bar, a first seat body and a second seat body provided with a through hole; the second seat body is mounted on the upper shell, the first seat body is mounted on the sliding bar, and the end of the sliding bar away from the first seat body passes through the through hole and is connected to the cross bar; the third elastic member is sleeved on the sliding bar, and the opposite ends are respectively abutted against the first seat body and the second seat body; the third elastic member is used to drive the locking pin to be inserted into the locking space through the sliding bar and the cross bar.

[0013] Optionally, the upper shell is further provided with a receiving groove, and the liquid outlet nozzle and the upper formation probe are both installed in the receiving groove; the lower chamber mechanism further includes a sealing ring sleeved on the lower shell; The upper shell is mounted on the lower shell, the sealing ring is used to seal the connection gap between the upper shell and the lower shell, and the battery is mounted in the lower chamber and the accommodating groove.

[0014] Optionally, the upper chamber mechanism also includes a liquid level sensor, wherein the first electrode of the liquid level sensor is electrically connected to the outer wall of the liquid outlet nozzle, and the second electrode of the liquid level sensor extends into the liquid outlet hole of the liquid outlet nozzle; the liquid level sensor detects whether there is residual electrolyte in the inner hole by detecting whether the first electrode and the second electrode are energized.

[0015] Optionally, the lower chamber mechanism further comprises a pressure sensor mounted on the lower shell, and the pressure sensor is used to detect the pressure of the lower chamber.

[0016] Optionally, 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 element; The first communication module is used for the communication protocol between the circuit board and the external device when the circuit board is electrically connected to the external power supply; The second communication module is used for the communication protocol between the circuit board and the external device when the circuit board is disconnected from the external power supply; The posture detection module is used to detect the spatial postures of the upper chamber mechanism and the lower chamber mechanism in real time; The management module is used to identify the identity information of the upper chamber mechanism and the lower chamber mechanism; The lower chamber mechanism includes a smoke sensor installed on the lower shell and used to detect smoke information in the lower chamber, 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 chamber is greater than a preset smoke value; The temperature control module is used to manage the heating temperature of the heating element; The position tracking module is used to track the positions of the upper chamber mechanism and the lower chamber mechanism; The dew point detection module is used to detect the dew point information of the lower chamber in real time.

[0017] In the present invention, the battery is installed in the lower chamber, the upper shell is installed on the lower shell, and the liquid outlet is connected to the internal space of the battery; the electrolyte can be injected into the upper chamber through the liquid injection nozzle, and the electrolyte in the upper chamber can flow into the internal space of the battery through the liquid outlet, thereby completing the battery injection work. The first valve hole of the switching valve can be used to inject high-pressure gas into the internal space of the battery, and the internal space of the battery can also be evacuated to a vacuum state; the pressure of the lower chamber where the battery is located can be controlled through the second valve hole of the switching valve, thereby completing various tasks such as positive pressure static and negative pressure static of the battery; 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 battery can be charged and discharged through the circuit board, thereby completing the battery formation work. The circuit board can heat the battery in the lower chamber through the heating element, thereby completing the battery baking work. The battery fixture can complete tasks such as battery baking, liquid injection, static placement, high-temperature and high-pressure storage, and formation. The battery does not need to be transferred between various carriers, which improves the integration of the battery fixture, reduces the manufacturing cost of the battery, and ensures the quality of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 A schematic diagram of the structure of a battery fixture provided by an embodiment of the present invention; Figure 2 A sectional perspective view of a battery fixture provided by one embodiment of the present invention; Figure 3 A schematic structural diagram of an upper chamber mechanism of a battery fixture provided in one embodiment of the present invention; Figure 4 A schematic structural diagram of a lower chamber mechanism of a battery fixture provided in one embodiment of the present invention; Figure 5 A cross-sectional view of a switching valve of a battery fixture provided by one embodiment of the present invention; Figure 6 A schematic structural diagram of a locking mechanism of a battery fixture provided in one embodiment of the present invention; Figure 7 A partial cross-sectional view of a locking mechanism of a battery fixture provided by an embodiment of the present invention; Figure 8 A schematic diagram of a circuit board of a battery fixture provided in accordance with an embodiment of the present invention.

[0020] The reference numerals in the specification are as follows: 1. Upper chamber mechanism; 11. Upper formation probe; 12. Liquid injection nozzle; 13. Liquid outlet nozzle; 14. Switching valve; 141. Valve core; 1411. Valve stem; 1412. Blocking part; 1413. Magnetic 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 airway; 1443. Second airway; 1444. Third airway; 1445. First opening; 1446. Second opening; 1447. Third opening; 15. Upper shell; 151. Upper chamber; 152. First channel; 153. Second channel; 154. Accommodating groove; 16. Liquid level sensor; 2. Lower chamber mechanism; 21. Lower formation probe; 22. Heating element; 23. Circuit board; 231. Power module; 232. First communication module; 233. Second communication module; 234. Posture 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; 3. Locking mechanism; 31. Upper locking mold; 311. Upper locking hole; 312. First convex portion; 32. Lower locking mold; 321. Lower locking hole; 322. Second convex portion; 33. Locking pin; 34. First lock core; 341. First groove; 35. Second lock core; 351. Second groove; 36. First elastic member; 37. Second elastic member; 38. Third elastic member; 39. Cross bar; 301. Sliding bar; 302. First seat body; 303. Second seat body; 304. Locking space; 100. Battery. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] It should be understood that the directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", and "middle" are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation of the present invention.

[0023] like Figure 1 As shown, a battery fixture provided by an embodiment of the present invention includes an upper chamber mechanism 1 and a lower chamber mechanism 2; like Figure 3 As shown, the upper chamber mechanism 1 includes an upper formation probe 11, a liquid injection nozzle 12, a liquid outlet nozzle 13, a switching valve 14 and an upper shell 15 provided with an upper chamber 151; the liquid injection nozzle 12, the liquid outlet nozzle 13 and the switching valve 14 are all installed on the upper shell 15, and are all connected to the upper chamber 151; it can be understood that the liquid injection nozzle 12 is arranged at the top of the upper shell 15, the liquid outlet nozzle 13 and the upper formation probe 11 are installed at the bottom of the upper shell 15, and the switching valve 14 can be installed on the side of the upper shell 15.

[0024] like Figure 4 As shown, the lower chamber mechanism 2 includes a lower formation probe 21, a heating element 22, a circuit board 23 and a lower shell 24 provided with a lower chamber 241; the lower formation probe 21, the circuit board 23 and the heating element 22 are all installed on the lower shell 24, the circuit board 23 is electrically connected to the heating element 22 and the lower formation probe 21, and the heating element 22 is used to heat the battery 100 in the lower chamber 241; it can be understood that the heating element 22 includes but is not limited to a heating sleeve, etc., and the heating sleeve can be installed inside the lower chamber 241, or sleeved on the lower shell 24.

[0025] like Figure 1 and Figure 2 As shown, the upper housing 15 is detachably mounted on the lower housing 24, the liquid outlet nozzle 13 is connected to the internal space of the battery 100, the upper formation probe 11 is electrically connected to the first electrode of the battery 100, the lower formation probe 21 is electrically connected to the second electrode of the battery 100, the first valve hole 1421 of the switching valve 14 is connected to the internal space of the battery 100, and the second valve hole 1431 of the switching valve 14 is connected to the lower chamber 241. It can be understood that one of the upper formation probe 11 and the lower formation probe 21 is connected to the positive electrode of the battery 100, and the other is connected to the negative electrode of the battery 100.

[0026] In the present 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 is connected to the internal space of the battery 100; the electrolyte can be injected into the upper chamber 151 through the liquid injection nozzle 12, and the electrolyte in the upper chamber 151 can flow into the internal space of the battery 100 through the liquid outlet nozzle 13, thereby completing the liquid injection work of the battery 100. The first valve hole 1421 of the switching valve 14 can be used to inject high-pressure gas into the internal space of the battery 100, or the internal space of the battery 100 can be evacuated to a vacuum state; the pressure of the lower chamber 241 where the battery 100 is located can be controlled through the second valve hole 1431 of the switching valve 14, so that the positive pressure static state, negative pressure static state and other operations of the battery 100 can be completed; 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, and the battery 100 can be charged and discharged through the circuit board 23, so as to complete the formation work of the battery 100. The circuit board 23 can heat the battery 100 in the lower chamber 241 through the heating element 22, so as to complete the baking work of the battery 100. The battery jig can complete the tasks of baking, liquid injection, standing, high-temperature and high-pressure storage, and formation of the battery 100. The battery 100 does not need to be transferred between various carriers, which improves the integration of the battery jig, reduces the manufacturing cost of the battery 100, and ensures the quality of the battery 100.

[0027] In one embodiment, if Figure 1 and Figure 2As shown, the switching valve 14 includes a valve core 141, a first valve nozzle 142 provided with the first valve hole 1421, a second valve nozzle 143 provided with the second valve hole 1431 and a valve body 144 provided with a control hole 1441, and the valve body 144 is installed on the upper shell 15; the first valve nozzle 142 and the second valve nozzle 143 are both installed on the valve body 144, and the upper shell 15 is provided with a first channel 152 connecting the first valve hole 1421 and the upper chamber 151, and the upper shell 15 is also provided with 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., and the first valve hole 1421 is connected to the internal space of the battery 100 through the first channel 152, the upper chamber 151 and the liquid outlet nozzle 13 in sequence.

[0028] 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 communicate with the first valve hole 1421 or the second valve hole 1431. It can be understood that the end of the valve core 141 in the control hole 1441 controls the end of the second channel 153 away from the lower chamber 241 to communicate with the first valve hole 1421 or the second valve hole 1431.

[0029] Specifically, when the valve core 141 controls the second channel 153 to be connected to the first valve hole 1421 at one end away from the lower chamber 241, the first valve hole 1421 is connected to the internal space of the battery 100 through the first channel 152, the upper chamber 151 and the liquid outlet nozzle 13 in sequence, and the first valve hole 1421 is also connected to the lower chamber 241 through the control hole 1441 and the second channel 153 in sequence. The internal space of the battery 100 and the lower chamber 241 can be evacuated through the first valve nozzle 142, and the pressure of the internal and external environments of the battery 100 can be ensured to be the same, thereby completing the negative pressure formation work of the battery 100.

[0030] 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 hole 1431, the first valve hole 1421 is connected to the internal space of the battery 100 through the first channel 152, the upper chamber 151 and the liquid outlet nozzle 13 in sequence, and the second valve hole 1431 is connected to the lower chamber 241 through the control hole 1441 and the second channel 153 in sequence. The air pressure of the internal space of the battery 100 can be adjusted separately through the first valve nozzle 142, and the pressure of the lower chamber 241 where the battery 100 is located can be adjusted separately through the second valve nozzle 143, so that the positive and negative pressures of the internal space of the battery 100 and the lower chamber 241 can be alternately operated according to a preset rule, so as to meet the work of infiltration and static, high temperature and high pressure storage, etc. after the battery 100 is filled with liquid.

[0031] In one embodiment, the battery fixture further includes a smoke sensor (not shown) connected to the first valve hole 1421, and the smoke sensor is used to detect the smoke content in the first valve hole 1421. It can be understood that the smoke sensor can be installed on the switching valve 14, or on a pipe connected to the first valve hole 1421. The external vacuum device can be connected to the first valve hole 1421 through a pipe.

[0032] When the battery burns in the lower chamber 241, smoke will enter the first valve hole 1421. The smoke sensor detects that the smoke content in the first valve hole 1421 exceeds the standard, and the vacuum device extracts the gas in the lower chamber 241 and / or the battery 100 through the first valve hole 1421, thereby reducing the oxygen content in the lower chamber 241 and the battery 100. The reduction in oxygen content can extinguish the fire of the battery 100 from the inside of the battery jig, thereby ensuring the safety of the battery jig. In addition, the battery jig has a simple structure and low manufacturing cost.

[0033] In one embodiment, if Figure 2 and 5 As shown, the valve core 141 includes a valve stem 1411 slidably inserted in the control hole 1441, and the valve stem 1411 is provided with a sealing portion 1412 abutting against the inner wall of the control hole 1441; it can be understood that the top of the valve stem 1411 extends out from 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 abutting 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.

[0034] The valve body 144 is also provided with a first air channel 1442, a second air channel 1443 and a third air channel 1444, the first air channel 1442 is connected to the first valve hole 1421 and the first channel 152, the second air channel 1443 is connected to the second channel 153, and the third air channel 1444 is connected to the second valve hole 1431; the first air channel 1442, the second air channel 1443 and the third air channel 1444 are connected to the control hole 1441 through the first opening 1445, the second opening 1446 and the third opening 1447 respectively, 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.

[0035] When the blocking portion 1412 slides into the control hole 1441 between the second opening 1446 and the third opening 1447 , the first valve hole 1421 is also connected to the second channel 153 through the first air channel 1442 , the control hole 1441 , and the second air channel 1442 in sequence; Specifically, when the blocking portion 1412 is located in the control hole 1441 between the second opening 1446 and the third opening 1447, the first valve hole 1421 is connected to the internal space of the battery 100 through the first air channel 1442, the upper chamber 151 and the liquid outlet nozzle 13 in sequence, and the first valve hole 1421 is also connected to the lower chamber 241 through the first air channel 1442, the control hole 1441 and the second channel 153 in sequence, while the third air channel 1444 is not connected to the control hole 1441, so that the third air channel 1444 is in a blocked state with the second channel 153 and the first channel 152 (the control hole 1441 between the third air channel 1444 and the second air channel 1443 is blocked by the blocking portion 1412).

[0036] When the blocking portion 1412 slides into the control hole 1441 between the first opening 1445 and the second opening 1446 , the second valve hole 1431 is connected to the second channel 153 through the third air channel 1444 , the control hole 1441 and the second air channel 1442 in sequence.

[0037] Specifically, when the blocking portion 1412 is located in the control hole 1441 between the first opening 1445 and the second opening 1446, the first valve hole 1421 is connected to the internal space of the battery 100 through the first channel 152, the upper chamber 151 and the liquid outlet 13 in sequence, and the second valve hole 1431 is connected to the lower chamber 241 through the control hole 1441 and the second channel 153 in sequence, while the first valve hole 1421 is not connected to the second air channel 1443 (the control hole 1441 between the first air channel 1442 and the second air channel 1443 is blocked by the blocking portion 1412). In this embodiment, the switching valve 14 has a simple structure, low manufacturing cost, and convenient operation.

[0038] In one embodiment, if Figure 4 As shown, the valve core 141 further includes a magnetic member 1413 installed in the control hole 1441 and used to magnetically attract the valve stem 1411; the magnetic attraction of the magnetic member 1413 on the valve stem 1411 is such that the blocking portion 1412 is located in the control hole 1441 between the second opening 1446 and the third opening 1447. It can be understood that the magnetic member 1413 includes but is not limited to a magnet, etc., and the valve stem 1411 is made of but is not limited to iron material or steel material; the magnetic member 1413 is located below the valve stem 1411 and always has a downward magnetic attraction on the valve stem 1411. In this embodiment, when there is no pulling force on the valve stem 1411, the magnetic attraction of the magnetic element 1413 on the valve stem 1411 causes the blocking portion 1412 to be located in the control hole 1441 between the second opening 1446 and the third opening 1447, so that the first valve hole 1421 is connected not only to the internal space of the battery 100, but also to the lower chamber 241. At this time, the switching valve 14 is in a common state, which improves the convenience of the battery fixture.

[0039] In one embodiment, if Figure 1 As shown, the battery fixture further includes a locking mechanism 3, and the upper housing 15 is detachably mounted on the lower housing 24 through the locking mechanism 3. It can be understood that 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.

[0040] In one embodiment, if Figure 1 , Figure 6 as well as Figure 7As shown, the locking mechanism 3 includes an upper locking mold 31, a lower locking mold 32, a locking pin 33, a first lock core 34 and a second lock core 35; the upper locking mold 31 is installed on the upper shell 15 and is provided with an upper locking hole 311, and the lower locking mold 32 is installed on the lower shell 24 and is provided with a lower locking hole 321; the first lock core 34 and the second lock core 35 are both rotatably installed in the lower lock hole 321; it can be understood that the first lock core 34 and the second lock core 35 are both fixed on the lower locking mold 32, the upper locking mold 31 is arranged directly above the lower locking mold 32, and a part of the first lock core 34 and the second lock core 35 are both located in the upper lock hole 311.

[0041] A first protrusion 312 and a second protrusion 322 are respectively provided on the two opposite inner side walls of the upper lock hole 311, a first groove 341 adapted to the first protrusion 312 is provided on the first lock core 34, and a second groove 351 adapted to the second protrusion 322 is provided on the second lock core 35; it can be understood that the first protrusion 312 protrudes toward the first lock core 34, and the second protrusion 322 protrudes toward the second lock core 35.

[0042] When the lock pin 33 is inserted into the locking space 304 between the first lock core 34 and the second lock core 35, the first protrusion 312 is engaged in the first groove 341, and the second protrusion 322 is engaged in the second groove 351. Specifically, when the lock pin 33 is inserted into the locking space 304, the lock pin 33 drives the first lock core 34 and the second lock core 35 to rotate until the first protrusion 312 is engaged in the first groove 341, and the second protrusion 322 is engaged in the second groove 351. In the second groove 351, at this time, the first lock core 34 is fixed to the lower locking mold 32 through a rotating shaft, and the first lock core 34 is also connected to the upper locking mold 31 through a first convex portion 312 clamped in the first groove 341. Similarly, the second lock core 35 is fixed to the lower locking mold 32 through a rotating shaft, and the second lock core 35 is also connected to the upper locking mold 31 through a second convex portion 322 clamped in the second groove 351, so that the locking mechanism 3 can play a role in locking the upper shell 15 and the lower shell 24.

[0043] When the lock pin 33 exits the locking space 304, the first convex portion 312 disengages from the first groove 341, and the second convex portion 322 disengages from the second groove 351. Specifically, when the lock pin 33 exits the locking space 304, the first lock core 34 and the second lock core 35 rotate, the first convex portion 312 disengages from the first groove 341, and the second convex portion 322 disengages from the second groove 351, so that the upper locking mold 31 and the lower locking mold 32 are in an unlocked state, and the disassembly work of the lower shell 24 and the upper shell 15 can be completed. In this embodiment, the locking mechanism 3 has a simple structure, low manufacturing cost, and is easy to operate.

[0044] In one embodiment, if Figure 7 As shown, the locking mechanism also includes a first elastic member 36 and a second elastic member 37 both installed in the lower lock hole 321; the first elastic member 36 abuts against the first lock core 34, and the second elastic member 37 abuts against the second valve core 141; it can be understood that the first elastic member 36 and the second elastic member 37 both include but are not limited to springs, elastic pins, etc., the first elastic member 36 abuts against the side wall of the first lock core 34, and the second elastic member 37 abuts against the side wall of the second lock core 35.

[0045] When the lock pin 33 exits the locking space 304, the first elastic member 36 drives the first lock core 34 to rotate so that the first protrusion 312 is separated from the first groove 341, and the second elastic member 37 drives the second lock core 35 to rotate so that the second protrusion 322 is separated from the second groove 351. Specifically, when the lock pin 33 is inserted into the locking space 304, the first lock core 34 compresses the first elastic member 36, and the second lock core 35 compresses the second elastic member 37; when the lock pin 33 is pulled out of the locking space 304, the rebound force of the first elastic member 36 causes the first lock core 34 to rotate, and the first lock core 34 will automatically rotate until the first protrusion 312 is separated from the first groove 341, and the rebound force of the second elastic member 37 causes the second lock core 35 to rotate, and the second lock core 35 will automatically rotate until the second protrusion 322 is separated from the second groove 351. In this embodiment, the design of the first elastic member 36 and the second elastic member 37 improves the convenience of unlocking the locking mechanism 3.

[0046] In one embodiment, if Figure 1 and Figure 6As shown, the locking mechanism 3 further includes a third elastic member 38, a cross bar 39, a slide bar 301, a first seat body 302, and a second seat body 303 provided with a through hole; the second seat body 303 is mounted on the upper shell 15, the first seat body 302 is mounted on the slide bar 301, and the end of the slide bar 301 away from the first seat body 302 passes through the through hole and then connects to the cross bar 39; the third elastic member 38 is sleeved on the slide bar 301, and the opposite ends are respectively in contact with the first seat body 302 and the second seat body 303; the third elastic member 38 is used to drive the lock pin 33 to be inserted into the locking space 304 through the slide bar 301 and the cross bar 39. It can be understood that the third elastic member 38 includes but is not limited to a spring, etc., the third elastic member 38 is compressed between the first seat body 302 and the second seat body 303, and the slide bar 301 can slide along the through hole.

[0047] Specifically, when no pulling force is applied to the cross bar 39 and / or the locking pin 33, the third elastic member 38 exerts a downward pulling force on the slide bar 301 through the first seat 302, and the slide bar 301 inserts the locking pin 33 into the locking space 304 through the cross bar 39. An upward pulling force is applied to the cross bar 39, and the cross bar 39 drives the locking pin 33 and the slide bar 301 to move upward, so that the locking pin 33 can be separated from the locking space 304, and the slide bar 301 can compress the third elastic member 38 through the first seat 302. In this embodiment, the design of the third elastic member 38 enables the locking mechanism 3 to be in a locked state when there is no insertion and extraction force, and the upper shell 15 is locked on the lower shell 24 through the locking mechanism 3, thereby avoiding accidents such as electrolyte shaking and electrolyte leakage when the battery jig is transported.

[0048] In one embodiment, if Figure 1 and Figure 2 As shown, the upper shell 15 is also provided with a receiving groove 154, and the liquid outlet nozzle 13 and the upper formation probe 11 are both installed in the receiving groove 154; the lower chamber mechanism also includes a sealing ring 25 sleeved on the lower shell 24; it can be understood that the receiving groove 154 is arranged below the upper chamber 151, and the liquid outlet nozzle 13 and the upper formation probe 11 are both installed at the top of the receiving groove 154.

[0049] The upper shell 15 is mounted on the lower shell 24, and the sealing ring 25 is used to seal the connection gap between the upper shell 15 and the lower shell 24. The battery 100 is mounted in the lower chamber 241 and the receiving groove 154. It can be understood that the lower part of the battery 100 is mounted in the lower chamber 241, and the upper part of the battery 100 extends from the upper part of the lower chamber 241; when the upper shell 15 is mounted on the lower shell 24, the upper part of the battery 100 is located in the receiving groove 154, and the liquid outlet 13 is automatically connected to the internal space of the battery 100, and the upper formation probe 11 is automatically electrically connected to the first electrode of the battery 100. In this embodiment, when the upper shell 15 is mounted on the lower shell 24, the sealing ring 25 abuts against the bottom of the upper shell 15, so that the sealing cavity can play a role in sealing the connection gap between the upper shell 15 and the lower shell 24, ensuring the sealing of the upper shell 15 mounted on the lower shell 24.

[0050] To further illustrate, one end of the second air duct 1443 away from the control hole 1441 is connected to the accommodating groove 154 . When the upper shell 15 is installed on the lower shell 24 , one end of the second air duct 1443 away from the control hole 1441 is connected to the accommodating groove 154 and the lower chamber 241 .

[0051] In one embodiment, if Figure 2 As shown, the upper chamber mechanism 1 also 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 nozzle 13, and the second electrode of the liquid level sensor 16 extends into the liquid outlet hole of the liquid outlet nozzle 13; the liquid level sensor 16 detects whether there is residual electrolyte in the liquid outlet hole by whether the first electrode and the second electrode are energized. It can be understood that the liquid outlet nozzle 13 can be made of stainless steel material; one of the first electrode and the second electrode is a positive electrode and the other is a negative electrode; preferably, the first electrode is a negative electrode and the second electrode is a negative electrode.

[0052] In this embodiment, when the second electrode contacts the electrolyte in the liquid outlet, the first electrode, the liquid outlet nozzle 13, the electrolyte, the second electrode and the liquid level sensor 16 form a complete conductive circuit, so that the liquid level sensor 16 detects that there is a lot of electrolyte remaining in the liquid outlet; when the second electrode does not contact the electrolyte in the liquid outlet, the first electrode, the liquid outlet nozzle 13, the electrolyte, the second electrode and the liquid level sensor 16 do not form a complete conductive circuit, so that the liquid level sensor 16 detects that there is no or only a very small amount of electrolyte remaining in the liquid outlet. In the present invention, the liquid level sensor 16 detects whether there is electrolyte remaining in the liquid outlet by whether the first electrode and the second electrode are energized. The liquid level sensor 16 does not occupy much space in the liquid outlet, ensuring the smoothness of the liquid outlet nozzle 13 injecting the electrolyte into the battery; and the liquid level sensor 16 has a simple structure and low manufacturing cost.

[0053] In one embodiment, if Figure 3 As shown, the lower chamber mechanism 2 further includes a pressure sensor 26 mounted on the lower housing 24, and the pressure sensor 26 is used to detect the pressure of the lower chamber 241. It can be understood that the detection end of the pressure sensor 26 is located in the lower chamber 241, and the pressure sensor 26 can detect the pressure of 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.

[0054] To further illustrate, the lower chamber mechanism 2 may also include a heat sink arranged opposite to the circuit board, a battery 100 electrically connected to the circuit board, etc. The heat sink can dissipate heat for the circuit board, and the battery 100 can supply power to electrical devices such as the circuit board 23.

[0055] In one embodiment, if Figure 8 As shown, the circuit board 23 is provided with a power module 231, a first communication module 232, a second communication module 233, a posture 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; The power module 231 is used to supply power to the circuit board 23 and the heating element 22; preferably, a charger interface is also provided on the circuit board 23, and the circuit board is electrically connected to an external power source through the charging interface. During the charging and discharging process of the battery 100, the battery 100 is mainly charged and discharged by the external power source. It can be understood that when the circuit board 23 is disconnected from the external power source, the power module 231 can also supply power to the circuit board 23, thereby ensuring the normal operation of the battery fixture.

[0056] 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 supply; 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, display screens, etc.) through the first communication module 232.

[0057] The second communication module 233 is used for the communication protocol between the circuit board 23 and the external device 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 the LoRa wireless communication module, etc. LoRa belongs to a low-power wide area network with the advantages of low power consumption, large coverage, and strong anti-interference ability; specifically, after the circuit board 23 is disconnected from the external power supply, when the first communication module 232 is in an invalid state, the communication protocol between the circuit board 23 and the external device is completed by the second communication module 233, which further ensures the normal operation of the battery fixture.

[0058] The posture detection module 234 is used to detect the spatial posture of the upper chamber mechanism 1 and the lower chamber mechanism 2 in real time; it can be understood that the posture detection module 234 includes but is not limited to a gyroscope, etc. The posture detection module 234 can detect the spatial posture of the battery fixture in real time and determine whether the battery fixture is tilted or tipped over.

[0059] The management module 235 is used to identify the identity information of the upper chamber mechanism 1 and the lower chamber mechanism 2; it can be understood that a fixture label is provided on the upper shell 15 or the lower shell 24, and the management module 235 can mark the battery fixture through the fixture label. Specifically, before the battery 100 is installed on the battery fixture, it is necessary to scan the battery label such as the QR code and bar code on the battery, and then install the battery after the battery label is identified in the lower chamber 241. Finally, the battery taken out of the battery fixture has the corresponding fixture label, so as to facilitate the data tracing of the battery 100.

[0060] The lower chamber mechanism 2 includes a smoke sensor (not shown in the figure) installed on the lower shell 24 and used to detect smoke information in the lower chamber 241. The smoke alarm module 236 is used to issue a smoke abnormality alarm when the smoke sensor detects that the smoke concentration in the lower chamber 241 is greater than a preset smoke value; it can be understood that the design of the smoke alarm module 236 ensures the safety of the battery fixture and avoids fire accidents in the battery fixture.

[0061] 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 problem of the heating temperature of the heating element 22 being too high or too low.

[0062] The position tracking module 238 is used to track the positions of the upper chamber mechanism 1 and the lower chamber mechanism 2. It can be understood that the position tracking module 238 is mainly used to track the specific position coordinates of the battery fixture on the production line, which is convenient for maintenance and data binding secondary confirmation, and improves the stability of production line production.

[0063] The dew point detection module 239 is used to detect the dew point information of the lower chamber 241 in real time. It can be understood that the battery has a relatively high requirement for the humidity of the environment. 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 through the first communication module 232 or the second communication module 233, so that the dew point information detected by the dew point detection module 239 can be used for pre-tightening or data tracing.

[0064] In this embodiment, various modules are integrated on the circuit board 23, and each module can complete a specific task, thereby improving the automation of the battery fixture. In addition, the circuit board 23 has a high degree of integration, which saves a lot of signal sources, control devices, and wiring costs, and can also realize that the battery fixture can still send position, pressure, temperature and other information to external electrical devices after being disconnected from the external power supply.

[0065] Furthermore, a pressure detection module 2301 is provided on the circuit board 23, and the pressure detection module 2301 can detect the pressure of the lower chamber 241 in real time, and other modules can be provided on the circuit board 23 according to actual needs.

[0066] The above are merely embodiments of the battery fixture of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery fixture, characterized in that: It includes an upper chamber mechanism and a lower chamber mechanism; The upper chamber 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 chamber; the liquid injection nozzle, the liquid outlet nozzle and the switching valve are all mounted on the upper shell and are connected to the upper chamber; The lower chamber mechanism comprises a lower formation probe, a heating element, a circuit board and a lower shell with a lower 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 to the heating element and the lower formation probe, and the heating element is used to heat the battery in the lower chamber; The upper shell can be detachably mounted on the lower shell, 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 hole of the switching valve is connected to the internal space of the battery, and the second valve hole of the switching valve is connected to the lower chamber.

2. The battery fixture according to claim 1, characterized in that: 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, wherein 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 is provided with a first passage connecting the first valve hole and the upper chamber, and the upper housing is also provided with a second passage connecting the lower chamber; The valve core is installed in the control hole and is used to control the end of the second passage away from the lower chamber to be connected to the first valve hole or the second valve hole.

3. The battery fixture according to claim 2, characterized in that: The valve core comprises a valve stem slidably inserted in the control hole, and the valve stem is provided with a blocking portion abutting against the inner wall of the control hole; The valve body is further provided with a first air passage, a second air passage and a third air passage, the first air passage is connected to the first valve hole and the first channel, the second air passage is connected to the second channel, and the third air passage is connected to the second valve hole; The first air channel, the second air channel and the third air channel are connected to the control hole through a first opening, a second opening and a third opening respectively, and the first opening, the second opening and the third opening are sequentially spaced and distributed along the axial direction of the control hole; When the blocking portion slides into the control hole between the second opening and the third opening, the first valve hole is also connected to the second channel through the first air channel, the control hole and the second air channel in sequence; When the blocking portion slides into the control hole between the first opening and the second opening, the second valve hole is connected to the second passage through the third air passage, the control hole, and the second air passage in sequence.

4. The battery fixture according to claim 3, characterized in that: The valve core also includes a magnetic attraction member installed in the control hole and used for magnetically attracting the valve stem; the magnetic attraction force of the magnetic attraction member on the valve stem causes the blocking portion to be located in the control hole between the second opening and the third opening.

5. The battery fixture according to claim 1, characterized in that: The battery fixture further includes a locking mechanism, and the upper shell is detachably mounted on the lower shell through the locking mechanism.

6. The battery fixture according to claim 5, characterized in that: The locking mechanism comprises an upper locking mold, a lower locking mold, a locking pin, a first lock core and a second lock core; the upper locking mold is mounted on the upper housing and is provided with an upper locking hole, the lower locking mold is mounted on the lower housing and is provided with a lower locking hole; the first lock core and the second lock core are both rotatably mounted in the lower locking hole; The first convex part and the second convex part are respectively provided on the two opposite inner side walls of the upper lock hole, the first lock core is provided with a first groove matched with the first convex part, and the second lock core is provided with a second groove 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 protrusion is engaged in the first groove, and the second protrusion is engaged in the second groove; When the locking pin exits the locking space, the first protrusion is disengaged from the first groove, and the second protrusion is disengaged from the second groove.

7. The battery fixture according to claim 6, characterized in that: The locking mechanism further includes a first elastic member and a second elastic member 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 valve core; When the lock pin exits the locking space, the first elastic member drives the first lock core to rotate so that the first protrusion disengages from the first groove, and the second elastic member drives the second lock core to rotate so that the second protrusion disengages from the second groove.

8. The battery fixture according to claim 6, characterized in that: The locking mechanism also includes a third elastic member, a cross bar, a sliding bar, a first seat body and a second seat body provided with a through hole; the second seat body is mounted on the upper shell, the first seat body is mounted on the sliding bar, and the end of the sliding bar away from the first seat body passes through the through hole and is connected to the cross bar; the third elastic member is sleeved on the sliding bar, and the opposite ends are respectively abutted against the first seat body and the second seat body; the third elastic member is used to drive the locking pin to be inserted into the locking space through the sliding bar and the cross bar.

9. The battery fixture according to claim 1, characterized in that: The upper shell is also provided with a receiving groove, and the liquid outlet nozzle and the upper formation probe are both installed in the receiving groove; the lower chamber mechanism also includes a sealing ring sleeved on the lower shell; The upper shell is mounted on the lower shell, the sealing ring is used to seal the connection gap between the upper shell and the lower shell, and the battery is mounted in the lower chamber and the accommodating groove.

10. The battery fixture according to claim 1, characterized in that: The upper chamber mechanism further comprises a liquid level sensor, wherein a first electrode of the liquid level sensor is electrically connected to an outer wall of the liquid outlet nozzle, and a second electrode of the liquid level sensor extends into a liquid outlet hole of the liquid outlet nozzle; the liquid level sensor detects whether electrolyte remains in the liquid outlet hole by checking whether the first electrode and the second electrode are energized; and / or The lower chamber mechanism further comprises a pressure sensor mounted on the lower shell, and the pressure sensor is used to detect the pressure of the lower chamber.

11. The battery fixture according to claim 1, characterized in that: 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 element; The first communication module is used for the communication protocol between the circuit board and the external device when the circuit board is electrically connected to the external power supply; The second communication module is used for the communication protocol between the circuit board and the external device when the circuit board is disconnected from the external power supply; The posture detection module is used to detect the spatial postures of the upper chamber mechanism and the lower chamber mechanism in real time; The management module is used to identify the identity information of the upper chamber mechanism and the lower chamber mechanism; The lower chamber mechanism includes a smoke sensor installed on the lower shell and used to detect smoke information in the lower chamber, 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 chamber is greater than a preset smoke value; The temperature control module is used to manage the heating temperature of the heating element; The position tracking module is used to track the positions of the upper chamber mechanism and the lower chamber mechanism; The dew point detection module is used to detect the dew point information of the lower chamber in real time.

Images