Battery module group with cooling box body

Abstract

The invention relates to the technical field of battery packs, in particular to a battery module group with a cooling box body, and solves the problems that only when a leaked water source influences the battery module group, a user can possibly find the influence, and when one battery of the battery module group is possibly transmitted to other batteries connected with the battery module group through electrical connection, the user cannot use the battery module group. Therefore, the fault range is increased. Comprising a battery module mounting box shell. According to the invention, a sealing protection layer can be additionally arranged on the outer side of the circulating cold drink water pipe through the leakproof cooling mechanism, so that the influence of a water source leaked from the circulating cold drink water pipe on equipment is prevented; by means of the automatic disconnection type battery module protection mechanism, electric connection among all batteries can be mutually disconnected, so that the situation that the fault range is expanded is avoided, and the safety protection performance of equipment is improved through the technical scheme.

Description

Technical Field

[0001] The present invention relates to the technical field of battery packs, and in particular to a battery module pack with a cooling box. Background Art

[0002] A battery module group typically consists of multiple battery cells, connectors, support structures, thermal management systems, electrical systems, battery management, and a housing unit. This battery module group is widely used in new energy vehicles, energy storage systems, consumer electronics, and other fields. In new energy vehicles, the battery module group is the core component of the power battery system, providing power for the vehicle. In energy storage systems, the battery module group is used to store electrical energy and release it when needed to provide power support for the power grid or equipment. In the consumer electronics field, the battery module group provides power for devices such as mobile phones and laptops. In order to improve the thermal management efficiency of the battery and avoid failure of the battery module due to high temperature, the boxes on some existing battery module packs generally have a cooling system installed on the periphery or inside to avoid overheating of the battery, thereby improving the performance and life of the battery. This type of battery module pack can also be called a battery module pack with a cooling box.

[0003] However, if some existing battery module packs with cooling boxes that use water cooling systems leak during long-term use, users may not be able to discover it until the leaked water affects the battery module pack, causing the battery module pack system to malfunction and the fault is detected. In addition, since the multiple batteries inside the battery module pack are electrically connected to each other, when one of the batteries fails, its voltage and current may change. These changes may be transmitted to other connected batteries through electrical connections, thereby increasing the scope of the fault and causing overcurrent shock to other batteries. This overcurrent shock may even cause thermal runaway, leading to safety problems such as fire. Therefore, it does not meet existing needs. We have proposed a battery module pack with a cooling box. Summary of the Invention

[0004] The object of the present invention is to provide a battery module group with a cooling box to solve the problem proposed in the above background technology that if some existing battery module groups with cooling boxes using water source cooling systems leak during long-term use, the user may not be able to find it until the leaked water source affects the battery module group, causing the battery module group system to fail and be detected. In addition, since the multiple batteries inside the battery module group are electrically connected to each other, when one of the batteries fails, its voltage and current may change. These changes may be transmitted to other batteries connected to it through electrical connections, thereby increasing the scope of the fault and causing overcurrent shock to other batteries. This overcurrent shock may even cause thermal runaway, leading to safety problems such as fire.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a battery module pack with a cooling box, comprising a battery module mounting box housing, the upper end surface of the battery module mounting box housing being provided with a plurality of battery module mounting slots, each of the battery module mounting slots containing a battery module, a leak-proof cooling mechanism being provided above the battery modules, the leak-proof cooling mechanism comprising a circulating cooling pipe mounting frame, a circulating cooling water pump, a circulating cold drinking water pipe, circulating coolant, thermal conductive cotton, an outer metal shell, and a plurality of lighted humidity sensors, wherein the circulating coolant is located within the circulating cold drinking water pipe; The circulating cooling water pump is fixedly installed inside the circulating cooling pipe installation frame, and both ends of the circulating cold drinking water pipe are connected to the circulating cooling pipe installation frame; The thermal conductive cotton is sleeved on the outer surface of the circulating cold drinking water pipe, the outer metal shell is fixedly sleeved on the outer surface of the thermal conductive cotton, and the plurality of light-up humidity sensors are fixedly mounted on the inner wall of the outer metal shell; An automatic disconnecting battery module protection mechanism is provided above the leak-proof cooling mechanism, and the automatic disconnecting battery module protection mechanism includes a synchronous disconnecting drive mechanism, two telecommunication transmission lines, two circuit fault detectors and an electrical connection bar; An internally threaded metal head for electrical connection is installed on both sides of the upper end surface of each battery module. Except for the two internally threaded metal heads for electrical connection located on the far left and the far right, an externally threaded metal conductive head is installed above each of the remaining internally threaded metal heads for electrical connection. An electrical conductive head is fixedly installed on the upper end surface of the externally threaded metal conductive head. An electrical conductive ring is installed on the outer surface of each electrical conductive head through a roller bearing sleeve. From left to right, the first electrical conductive ring is connected to the second electrical conductive ring, the third electrical conductive ring is connected to the fourth electrical conductive ring, and so on. These electrical conductive rings are all connected by a conductive rod; The front ends of the two telecommunication conductive lines are respectively connected to the two electrical conductive rings located on the far right. The two circuit fault detectors are respectively fixedly installed near the rear ends of the two telecommunication conductive lines, and the rear ends of the two circuit fault detectors are both connected to the electrical connection bars. The synchronous disconnection drive mechanism can synchronously drive all the externally threaded metal conductive heads to rotate and move up and down.

[0006] Preferably, a cooling pipe receiving groove located inside the battery module mounting groove is provided on both sides of the battery module, and the position on the circulating cold drinking water pipe corresponding to the cooling pipe receiving groove is a U-shaped surface.

[0007] Preferably, the light-on humidity sensor includes a humidity sensor and a warning light, wherein the warning light is fixedly mounted on an outer surface of the humidity sensor, and the warning light extends to the outside of the outer metal shell by penetrating the outer metal shell.

[0008] Preferably, the synchronous disconnection drive mechanism includes a battery module cover, and the lower end surface of the battery module cover is provided with a plurality of fixing grooves, the positions and numbers of the fixing grooves correspond to the positions and numbers of the battery modules, and the length and width of the inner walls of the fixing grooves are smaller than the length and width of the battery modules.

[0009] Preferably, a stepper motor is fixedly installed on the upper side of the interior of the battery module cover, and the output shaft of the stepper motor is connected to a lifting threaded rod through a coupling. A lifting plate is provided on the lower movable sleeve of the outer surface of the lifting threaded rod, and a square groove located inside the battery module cover is provided on the outer side of the lifting plate, and the four end corners of the outer surface of the lifting plate are slidably connected to the inner wall of the square groove.

[0010] Preferably, the upper end surface of the lifting plate is provided with a plurality of tooth row receiving grooves, and the positions and numbers of the tooth row receiving grooves correspond to the positions and numbers of the externally threaded metal conductive heads.

[0011] Preferably, the interior of the gear row receiving groove contains a gear row fixed between its upper end surface and the inner wall of the square groove, the gear row is engaged with a gear, the axis of the gear is connected to the first gear shaft, both ends of the first gear shaft are located inside the lifting plate, and the first gear shaft located inside the lifting plate is connected to the lifting plate through a roller bearing.

[0012] Preferably, a first bevel gear is fixedly sleeved on one side of the outer surface of the first gear shaft, the first bevel gear is meshed with a second bevel gear, the axis of the second bevel gear is connected to the second gear shaft, a third bevel gear is fixedly sleeved on one side of the outer surface of the second gear shaft, the third bevel gear is meshed with a fourth bevel gear, the axis of the fourth bevel gear is connected to a transmission insulating column connected to the lifting plate through a roller bearing, and the lower end surface of the transmission insulating column is fixed to the electrical conductive head located below it.

[0013] Preferably, the rise of the conductive rod is provided with a piston groove located on the upper end surface of the lifting plate, and a piston head is provided inside the piston groove. The upper end surface of the piston head is fixedly connected to a connecting rod, and the upper end surface of the connecting rod is fixed to the upper inner wall of the square groove.

[0014] Preferably, a protective cover plate is provided above the stepper motor and is located on the upper end surface of the battery module cover, and the battery module cover and the protective cover plate are fixed by screws.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides an outer metal shell on the outer side of a circulating cold drinking water pipe for receiving circulating coolant. The additional outer metal shell can form an additional sealing protective layer on the outer surface of the circulating cold drinking water pipe. This sealing protective layer can prevent the circulating coolant leaking from the circulating cold drinking water pipe from contacting the electrical components inside the equipment, thereby preventing malfunctions. The above technical solution improves the sealing performance of the cooling mechanism for the circulating coolant, thereby preventing leakage of the circulating coolant. The present invention provides a layer of thermal conductivity cotton between the circulating cold drink water pipe and the outer metal shell. When circulating coolant leaks from the circulating cold drink water pipe, the thermal conductivity cotton can absorb it through its own physical properties. When the thermal conductivity cotton absorbs the circulating coolant and causes its own humidity to increase, it will be detected by the light-on humidity sensor located inside it. When the light-on humidity sensor detects the increase in humidity of the thermal conductivity cotton, it will automatically send an alarm message to the user, thereby prompting the circulating coolant in the cooling mechanism to leak, thereby preventing the leaked circulating coolant from damaging the electrical components inside the equipment. The present invention can automatically connect or disconnect the externally threaded metal conductive heads located inside the device and used to electrically connect the battery modules to the battery modules through the automatic disconnecting battery module protection mechanism. When a circuit fault detector installed inside the automatic disconnecting battery module protection mechanism detects that an electrical fault has occurred in the device, the automatic disconnecting battery module protection mechanism will automatically disconnect all the externally threaded metal conductive heads from the battery modules, thereby disconnecting the electrical connections between all the battery modules. The above technical solution can prevent the situation where a fault in one battery module causes an overcurrent shock to other battery modules electrically connected to it, thereby ultimately expanding the scope of the fault. The automatic disconnecting battery module protection mechanism can improve the overall safety of the device. The present invention uses an automatic disconnecting battery module protection mechanism to disconnect the electrical connections between all externally threaded metal conductive heads and the battery modules. The piston head will move downward inside the piston groove. When the piston head moves downward inside the piston groove, a suction force will be generated. Through this suction force, the air inside the device can be drawn into the inside of the piston groove. Through the above technical solution, in the process of disconnecting the electrical connection between the battery modules, the air inside the device can be drawn into the inside of the piston groove, thereby reducing the oxygen concentration inside the device and avoiding the battery module from spontaneously combusting due to sparks caused by circuit failures. This structure further improves the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the present invention as a whole; Figure 2 It is a bottom schematic diagram of the present invention as a whole; Figure 3 A top view of the internal structure of the circulating cooling pipe installation frame of the present invention; Figure 4 For the present invention Figure 2 Schematic diagram of the internal structure of the circulating cold drinking water pipe at D in the middle; Figure 5 This is a front view of the structure when the entire assembly of the present invention is completed; Figure 6 For the present invention Figure 5 A magnified view of the structure at point A; Figure 7 For the present invention Figure 6 A magnified view of the structure at B in the middle; Figure 8 For the present invention Figure 7 Enlarged view of the structure at point C in the middle.

[0017] Figure: 1. Battery module mounting housing; 2. Automatic disconnecting battery module protection mechanism; 201. Battery module cover; 202. Stepper motor; 203. Lifting threaded rod; 204. Lifting plate; 205. Gear row; 206. Gear; 207. First gear shaft; 208. First bevel gear; 209. Second bevel gear; 210. Second gear shaft; 211. Third bevel gear; 212. Fourth bevel gear; 213. Transmission insulating column; 214. Electrical conductive head; 215. Externally threaded metal conductive head; 216. Conductive rod; 217. Telecommunications conductive line ; 218. Circuit fault detector; 219. Electrical connection bar; 220. Piston groove; 221. Piston head; 222. Connecting rod; 223. Fixing groove; 224. Square groove; 225. Electrically conductive ring; 226. Gear row storage groove; 3. Battery module installation groove; 4. Battery module; 5. Cooling pipe storage groove; 6. Circulating cooling pipe installation frame; 7. Circulating cooling water pump; 8. Circulating cold drinking water pipe; 9. U-shaped surface; 10. Internal threaded metal head for electrical connection; 11. Circulating coolant; 12. Thermal conductive cotton; 13. Outer metal shell; 14. Light-up humidity sensor. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] See also Figures 1 to 8 The present invention provides an embodiment of a battery module group with a cooling box, including a battery module mounting box shell 1, wherein the upper end surface of the battery module mounting box shell 1 is provided with a plurality of battery module mounting slots 3, wherein a battery module 4 is placed inside each battery module mounting slot 3, and a leak-proof cooling mechanism is provided above the battery module 4. The leak-proof cooling mechanism includes a circulating cooling pipe mounting frame 6, a circulating cooling water pump 7, a circulating cold drinking water pipe 8, a circulating coolant 11, a thermal conductive cotton 12, an outer metal shell 13, and a plurality of light-up humidity sensors 14. The circulating coolant 11 is located inside the circulating cold drinking water pipe 8; The circulating cooling water pump 7 is fixedly installed inside the circulating cooling pipe installation frame 6, and both ends of the circulating cold drinking water pipe 8 are connected to the circulating cooling pipe installation frame 6; The thermal conductive cotton 12 is sleeved on the outer surface of the circulating cold water pipe 8, the outer metal shell 13 is fixedly sleeved on the outer surface of the thermal conductive cotton 12, and multiple light-up humidity sensors 14 are fixedly mounted on the inner wall of the outer metal shell 13; when using the device, first assemble the battery module mounting box 1, the circulating cooling pipe mounting frame 6 and the automatic disconnection type battery module protection mechanism 2 to form a complete battery module group; An outer metal shell 13 is provided on the outer side of the circulating cold drink water pipe 8 for receiving the circulating coolant 11. The additional outer metal shell 13 can form an additional sealing protective layer on the outer surface of the circulating cold drink water pipe 8. This sealing protective layer can prevent the circulating coolant 11 leaking from the circulating cold drink water pipe 8 from contacting the electrical components inside the device, thereby preventing a malfunction. The above technical solution improves the sealing performance of the cooling mechanism for the circulating coolant 11, thereby preventing the circulating coolant 11 from leaking. The light-on humidity sensor 14 includes a humidity sensor and a warning light. The warning light is fixedly installed on the outer surface of the humidity sensor, and the warning light extends to the outside of the outer metal shell 13 by passing through the outer metal shell 13. A layer of thermal conductive cotton 12 is provided between the circulating cold drink water pipe 8 and the outer metal shell 13. When the circulating coolant 11 leaks from the circulating cold drink water pipe 8, the thermal conductive cotton 12 can absorb it through its own physical properties. When the thermal conductive cotton 12 absorbs the circulating coolant 11 and causes its own humidity to increase, it will be detected by the light-on humidity sensor 14 located therein. When the light-on humidity sensor 14 detects that the humidity of the thermal conductive cotton 12 increases, it will automatically send an alarm message to the user, thereby prompting the circulating coolant 11 in the cooling mechanism to leak, thereby preventing the leaked circulating coolant 11 from damaging the electrical components inside the equipment. When one of the light-up humidity sensors 14 detects that the humidity of the thermal conductive cotton 12 has increased, in addition to sending an alarm message, the warning light installed on its outer surface will light up synchronously. The warning light located on the outside of the outer metal shell 13 can remind maintenance personnel of the specific leakage location, thereby facilitating maintenance work.

[0020] Both sides of the battery module 4 are provided with a cooling pipe receiving groove 5 located inside the battery module mounting groove 3, and the position on the circulating cold water pipe 8 corresponding to the cooling pipe receiving groove 5 is a U-shaped surface 9; when the circulating cooling pipe mounting frame 6 is installed on the upper end surface of the battery module mounting box 1, the end of the circulating cold water pipe 8 with the U-shaped surface 9 will be inserted into the interior of the cooling pipe receiving groove 5, thereby fitting with the battery module 4. Through this structure, the battery module 4 can be more tightly fitted with the leak-proof cooling mechanism, thereby improving the cooling effect of the battery module 4; When the battery module group is assembled and the leak-proof cooling mechanism needs to be started to cool the battery module 4, the circulating cooling water pump 7 is started to drive the circulating coolant 11 located inside the circulating cold drinking water pipe 8 to flow.

[0021] An automatic disconnection type battery module protection mechanism 2 is provided above the leak-proof cooling mechanism. The automatic disconnection type battery module protection mechanism 2 includes a synchronous disconnection drive mechanism, two telecommunication transmission lines 217, two circuit fault detectors 218, and an electrical connection bar 219. An internally threaded metal head 10 for electrical connection is mounted on both sides of the upper end surface of each battery module 4. Except for the two internally threaded metal heads 10 on the far left and right, each of the remaining internally threaded metal heads 10 is mounted above an externally threaded metal conductive head 215. An electrical conductive head 214 is fixedly mounted on the upper end surface of the externally threaded metal conductive head 215. An electrical conductive ring 225 is mounted on the outer surface of each electrical conductive head 214 via a roller bearing sleeve. From left to right, the first electrical conductive ring 225 is connected to the second electrical conductive ring 225, the third electrical conductive ring 225 is connected to the fourth electrical conductive ring 225, and so on. These electrical conductive rings 225 are all connected by a conductive rod 216. The front ends of the two telecommunication conductive lines 217 are respectively connected to the two electrical conductive rings 225 located on the far right. The two circuit fault detectors 218 are respectively fixedly installed near the rear ends of the two telecommunication conductive lines 217, and the rear ends of the two circuit fault detectors 218 are both connected to the electrical connection bar 219. The synchronous disconnection drive mechanism can synchronously drive all the externally threaded metal conductive heads 215 to rotate and move up and down.

[0022] The synchronous disconnection drive mechanism includes a battery module cover 201, and the lower end surface of the battery module cover 201 is provided with a plurality of fixing grooves 223. The position and number of the fixing grooves 223 correspond to the position and number of the battery modules 4, and the length and width of the inner wall of the fixing groove 223 are smaller than the length and width of the battery module 4; when the automatic disconnection battery module protection mechanism 2 is fixed to the upper end surface of the battery module mounting box 1, the internal threaded metal head 10 for electrical connection installed on the upper end surface of the battery module 4 will enter the interior of the fixing groove 223 located on the lower end surface of the battery module cover 201, and at the same time, the four edge surfaces on the outer side of the upper end surface of the battery module 4 will fit with the lower end surface of the battery module cover 201. Through this battery module cover 201, the battery module 4 can be fixed to prevent it from jumping up and down inside the battery module group due to external force.

[0023] A stepper motor 202 is fixedly installed on the upper side of the battery module cover 201. The output shaft of the stepper motor 202 is connected to the lifting thread rod 203 through a coupling. The lower movable sleeve of the outer surface of the lifting thread rod 203 is provided with a lifting plate 204. The outer side of the lifting plate 204 is provided with a square groove 224 located inside the battery module cover 201, and the four end corners of the outer surface of the lifting plate 204 are all slidably connected to the inner wall of the square groove 224; when the automatic disconnecting battery module protection mechanism 2 is fixed to the battery module installation box After the upper end surface of the shell 1 is touched, the stepper motor 202 is started, and the stepper motor 202 can drive the lifting threaded rod 203 connected thereto to rotate. Since the lifting plate 204 connected to the lifting threaded rod 203 through a threaded structure is slidably connected to the inner wall of the square groove 224, the lifting plate 204 itself cannot rotate. When the lifting threaded rod 203 rotates, the lifting plate 204, which is threadedly connected to it but cannot rotate by itself, will move up and down under the drive of the threaded structure, and the lifting plate 204 is moved downward.

[0024] The upper end surface of the lifting plate 204 is provided with a plurality of gear row receiving grooves 226, the position and number of the gear row receiving grooves 226 correspond to the position and number of the externally threaded metal conductive head 215; the interior of the gear row receiving groove 226 contains a gear row 205 fixed between its upper end surface and the inner wall of the square groove 224, the gear row 205 is engaged with a gear 206, the axis of the gear 206 is connected to the first gear shaft 207, both ends of the first gear shaft 207 are located inside the lifting plate 204, and the first gear shaft 207 located inside the lifting plate 204 is connected to the lifting plate 204 through a roller bearing; as the lifting plate 204 descends, the gear 206 located inside it will roll along the outer surface of the gear row 205, and the rolling gear 206 can drive the first gear shaft 207 connected to the axis of the gear 206 to rotate.

[0025] A first bevel gear 208 is fixedly sleeved on one side of the outer surface of the first gear shaft 207. The first bevel gear 208 is meshed with a second bevel gear 209. The axis of the second bevel gear 209 is connected to the second gear shaft 210. A third bevel gear 211 is fixedly sleeved on one side of the outer surface of the second gear shaft 210. The third bevel gear 211 is meshed with a fourth bevel gear 212. The axis of the fourth bevel gear 212 is connected to a transmission insulating column 213 connected to the lifting plate 204 through a roller bearing, and the lower end surface of the transmission insulating column 213 is fixed to the electrical conductive head 214 located below it; the rotating first gear shaft 207 can drive the fixed sleeve The first bevel gear 208 on the outer surface of the first gear shaft 207 and the second bevel gear 209 meshing with the first bevel gear 208 rotate. The rotating second bevel gear 209 drives the second gear shaft 210 connected to the axis of the second bevel gear 209 and the third bevel gear 211 fixedly mounted on the outer surface of the second gear shaft 210 to rotate. When the third bevel gear 211 rotates, the fourth bevel gear 212 meshing with it and the transmission insulating post 213 connected to the axis of the fourth bevel gear 212 rotate synchronously. The rotating transmission insulating post 213 drives the externally threaded metal conductive contact 215 connected to it via the electrical conductive contact 214 to rotate. Since the transmission insulating column 213 and the lifting plate 204 are connected via a roller bearing, when the lifting plate 204 moves downward, the transmission insulating column 213 and the externally threaded metal conductive head 215 connected thereto via the electrical conductive head 214 will move downward together. The externally threaded metal conductive head 215, which rotates and descends, will eventually enter the internally threaded metal head 10 for electrical connection located on the upper end surface of the battery module 4, thereby electrically connecting the electrical conductive head 214 to the battery module 4. The multiple electrical conductive heads 214 are electrically connected to each other through the electrical conductive ring 225 and the conductive rod 216. Through the conduction of the externally threaded metal conductive head 215, the electrical conductive head 214, the electrical conductive ring 225 and the conductive rod 216, the multiple battery modules 4 located inside the device can be electrically connected. The electrical conductive line 217 connected to the rightmost electrical conductive ring 225 can electrically connect multiple battery modules 4 located inside the device, which are electrically connected to each other, to the electrical connection bar 219. The electrical connection bar 219 can also electrically connect the entire battery module group to external equipment, thereby allowing the device to be used. When the circuit fault detector 218 installed on the outer surface of the telecommunication transmission line 217 detects a circuit fault inside the device, the stepper motor 202 will be started to rotate the lifting threaded rod 203 in the opposite direction, thereby rotating and moving the external threaded metal conductive head 215 upward. As the external threaded metal conductive head 215 rotates and rises, the external threaded metal conductive head 215 will gradually leave the inside of the internal threaded metal head 10 for electrical connection, thereby disconnecting the electrical connection between the multiple battery modules 4. The above technical solution can prevent the situation where when one of the battery modules 4 fails, it will cause overcurrent shock to other battery modules 4 electrically connected to it, and ultimately expand the scope of the fault. This automatic disconnection type battery module protection mechanism 2 can improve the overall safety of the equipment.

[0026] The upward movement of the conductive rod 216 is provided with a piston groove 220 located on the upper end surface of the lifting plate 204. A piston head 221 is provided inside the piston groove 220. The upper end surface of the piston head 221 is fixedly connected to a connecting rod 222, and the upper end surface of the connecting rod 222 is fixed to the upper inner wall of the square groove 224. Since the piston head 221 is fixed to the inner wall of the square groove 224 by the connecting rod 222, when the lifting plate 204 moves upward as a whole, the piston head 221 will stay where it originally did not move. When the lifting plate 204 moves upward as a whole, the piston head 221 that remains in its original position will move downward inside the lifting plate 204 as the lifting plate 204 rises. The downward moving piston head 221 can generate a suction force, which can draw the air inside the device into the piston groove 220. Through the above technical solution, in the process of disconnecting the electrical connection between the battery modules 4, the air inside the device can be drawn into the piston groove 220, thereby reducing the oxygen concentration inside the device and avoiding the battery module 4 from spontaneously combusting due to sparks caused by circuit failures. This structure further improves the safety of the device.

[0027] A protective cover is provided above the stepper motor 202 and is located on the upper end surface of the battery module cover 201, and the battery module cover 201 and the protective cover are fixed by screws; the protective cover can protect the stepper motor 202, and when 20 fails, the protective cover can be removed to repair the stepper motor 202.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A battery module assembly with a cooling box, comprising a battery module mounting box (1), characterized in that: The upper end surface of the battery module mounting box shell (1) is provided with a plurality of battery module mounting grooves (3), a battery module (4) is placed inside each of the battery module mounting grooves (3), and a leak-proof cooling mechanism is provided above the battery module (4), the leak-proof cooling mechanism comprising a circulating cooling pipe mounting frame (6), a circulating cooling water pump (7), a circulating cold drinking water pipe (8), a circulating coolant (11), a thermal conductive cotton (12), an outer metal shell (13) and a plurality of light-up humidity sensors (14), wherein the circulating coolant (11) is located inside the circulating cold drinking water pipe (8); The circulating cooling water pump (7) is fixedly installed inside the circulating cooling pipe installation frame (6), and both ends of the circulating cold drinking water pipe (8) are connected to the circulating cooling pipe installation frame (6); The heat-conducting cotton (12) is sleeved on the outer surface of the circulating cold drinking water pipe (8), the outer metal shell (13) is fixedly sleeved on the outer surface of the heat-conducting cotton (12), and the plurality of light-up humidity sensors (14) are fixedly mounted on the inner wall of the outer metal shell (13); An automatic disconnection type battery module protection mechanism (2) is provided above the leak-proof cooling mechanism, and the automatic disconnection type battery module protection mechanism (2) comprises a synchronous disconnection drive mechanism, two telecommunication transmission lines (217), two circuit fault detectors (218) and an electrical connection bar (219); An internal threaded metal head (10) for electrical connection is installed on both sides of the upper end surface of each battery module (4), and an external threaded metal conductive head (215) is provided above each of the internal threaded metal heads (10) for electrical connection except the two internal threaded metal heads (10) for electrical connection located on the far left and the far right. An electrical conductive head (214) is fixedly provided on the upper end surface of the external threaded metal conductive head (215), and an electrical conductive ring (225) is provided on the outer surface of each electrical conductive head (214) through a roller bearing sleeve. From left to right, the first electrical conductive ring (225) and the second electrical conductive ring (225), the third electrical conductive ring (225) and the fourth electrical conductive ring (225), and so on, are connected by a conductive rod (216); The front ends of the two telecommunication conductive lines (217) are respectively connected to the two electrical conductive rings (225) located on the far right, the two circuit fault detectors (218) are respectively fixedly installed at positions close to the rear end faces of the two telecommunication conductive lines (217), and the rear ends of the two circuit fault detectors (218) are both connected to the electrical connection row (219), and the synchronous disconnection drive mechanism can synchronously drive all the external threaded metal conductive heads (215) to rotate and move up and down.

2. The battery module assembly with a cooling box according to claim 1, characterized in that: Both sides of the battery module (4) are provided with a cooling pipe receiving groove (5) located inside the battery module mounting groove (3), and a position on the circulating cold drinking water pipe (8) corresponding to the cooling pipe receiving groove (5) is a U-shaped surface (9).

3. The battery module assembly with a cooling box according to claim 1, characterized in that: The light-on humidity sensor (14) comprises a humidity sensor and a warning light, wherein the warning light is fixedly mounted on the outer surface of the humidity sensor, and the warning light extends to the outside of the outer metal shell (13) by penetrating the outer metal shell (13).

4. The battery module assembly with a cooling box according to claim 1, characterized in that: The synchronous disconnection drive mechanism comprises a battery module cover (201), wherein a plurality of fixing grooves (223) are provided on the lower end surface of the battery module cover (201), the positions and number of the fixing grooves (223) correspond to the positions and number of the battery modules (4), and the length and width of the inner walls of the fixing grooves (223) are smaller than the length and width of the battery modules (4).

5. The battery module assembly with a cooling box according to claim 4, characterized in that: A stepper motor (202) is fixedly mounted on the upper side of the interior of the battery module cover (201); the output shaft of the stepper motor (202) is connected to a lifting threaded rod (203) via a coupling; a lifting plate (204) is provided on the lower side of the outer surface of the lifting threaded rod (203); a square groove (224) located inside the battery module cover (201) is provided on the outer side of the lifting plate (204); and the four end corners of the outer surface of the lifting plate (204) are all slidably connected to the inner wall of the square groove (224).

6. The battery module assembly with a cooling box according to claim 5, characterized in that: The upper end surface of the lifting plate (204) is provided with a plurality of tooth row receiving grooves (226), and the positions and number of the tooth row receiving grooves (226) correspond to the positions and number of the externally threaded metal conductive heads (215).

7. The battery module assembly with a cooling box according to claim 6, characterized in that: The interior of the gear row receiving groove (226) contains a gear row (205) fixed between its upper end surface and the inner wall of the square groove (224), the gear row (205) is engaged with a gear (206), the axis of the gear (206) is connected to a first gear shaft (207), both ends of the first gear shaft (207) are located inside the lifting plate (204), and the first gear shaft (207) located inside the lifting plate (204) is connected to the lifting plate (204) through a roller bearing.

8. The battery module assembly with a cooling box according to claim 7, characterized in that: A first bevel gear (208) is fixedly sleeved on one side of the outer surface of the first gear shaft (207), the first bevel gear (208) is meshed with a second bevel gear (209), the axis of the second bevel gear (209) is connected to the second gear shaft (210), a third bevel gear (211) is fixedly sleeved on one side of the outer surface of the second gear shaft (210), the third bevel gear (211) is meshed with a fourth bevel gear (212), the axis of the fourth bevel gear (212) is connected to a transmission insulating column (213) connected to the lifting plate (204) via a roller bearing, and the lower end surface of the transmission insulating column (213) is fixed to an electrical conductive head (214) located below it.

9. The battery module assembly with a cooling box according to claim 8, characterized in that: The rising of the conductive rod (216) is provided with a piston groove (220) located on the upper end surface of the lifting plate (204), and a piston head (221) is provided inside the piston groove (220). The upper end surface of the piston head (221) is fixedly connected to a connecting rod (222), and the upper end surface of the connecting rod (222) is fixed to the upper inner wall of the square groove (224).

10. The battery module assembly with a cooling box according to claim 5, characterized in that: A protective cover plate is provided above the stepper motor (202) and is located on the upper end surface of the battery module cover (201), and the battery module cover (201) and the protective cover plate are fixed by screws.

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