Heat dissipation and explosion-proof mechanism for storage battery shell

Abstract

The utility model relates to the technical field of batteries, in particular to a heat dissipation and explosion-proof mechanism of a storage battery shell, which comprises a shell, the connecting seats are mounted on the two sides of the shell, and clamping grooves are formed in the connecting seats; the cover plate is mounted at the top of the shell in an embedded manner; the battery is mounted in the shell; the electrode sleeves are symmetrically arranged on the cover plate; the power supply clamp is arranged on the electrode sleeve; and a heat dissipation explosion-proof mechanism, wherein the heat dissipation explosion-proof mechanism is arranged on the shell. According to the heat dissipation explosion-proof mechanism of the device, when the storage battery encounters abnormal conditions such as overcharge, quick response can be achieved, the power supply clamp and the electrode sleeve are separated through a mechanical mechanism, emergency power failure is achieved, continuous increase of internal current of the battery is avoided, meanwhile, a built-in cooling system takes away heat around the battery through circularly flowing cooling liquid, the temperature of the battery is effectively reduced, and the service life of the battery is prolonged. And thermal runaway caused by overheating is prevented, so that the purpose of preventing explosion is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a heat dissipation and explosion-proof mechanism for a battery shell. Background Art

[0002] As an electrochemical energy storage device, batteries contain electrolytes, electrodes, and other materials. These materials are potentially flammable and explosive under certain conditions. Therefore, the structural design of batteries must fully consider factors such as heat dissipation, explosion protection, and fire prevention to ensure safety in normal use and abnormal conditions.

[0003] However, many batteries currently on the market do not fully consider heat dissipation and explosion-proof design during their design. When encountering abnormal overcharging conditions, the battery management system fails to effectively intervene in the charging process. At the same time, the heat generated inside the battery cannot be dissipated in a timely and effective manner, which will cause the battery temperature to rise rapidly and trigger thermal runaway. Once the thermal runaway state is entered, the chemical reaction inside the battery accelerates, releasing a large amount of heat, which can easily cause the battery to explode and fire, resulting in serious property damage and personal injury.

[0004] To this end, this patent provides a battery casing heat dissipation and explosion-proof mechanism. Utility Model Content

[0005] In order to overcome the shortcomings of existing batteries that lack heat dissipation and explosion-proof design when overcharged, resulting in the battery triggering thermal runaway, thereby causing battery explosion and fire, causing serious property damage and personal injury, the utility model provides a battery housing heat dissipation and explosion-proof mechanism.

[0006] To solve the above problem, the present invention adopts the following technical solution: a heat dissipation and explosion-proof mechanism for a battery shell, comprising a shell; a connecting seat, the connecting seat being installed on both sides of the shell and provided with a card slot; a cover plate, the cover plate being embedded in the top of the shell to seal the internal space of the shell; a battery, the battery being installed inside the shell; an electrode sleeve, the electrode sleeve being symmetrically arranged on the cover plate; a power supply clamp, the power supply clamp being arranged on the electrode sleeve; and a heat dissipation and explosion-proof mechanism, the heat dissipation and explosion-proof mechanism being arranged on the shell.

[0007] Furthermore, the heat dissipation and explosion-proof mechanism includes: a heat exchange plate, which is tightly attached to the outside of the battery to conduct heat generated by the battery; a liquid collecting tank, which is arranged on one side of the shell to store coolant; a connecting pipe, which is arranged outside the liquid collecting tank; a water pump, which is installed on the connecting pipe to pump coolant; a guide pipe, which is arranged on the surface of the heat exchange plate, one end of the guide pipe is connected to the water outlet end of the water pump, and the other end is connected to the liquid collecting tank; a cylinder, which is installed on the outside of the shell; a connecting rod, which is fixedly connected to the movable rod of the cylinder; a push plate, which is slidably installed on the electrode sleeve and fixedly connected to the connecting rod, and is used to separate the power clamp from the electrode sleeve under the action of the cylinder to achieve power off.

[0008] Furthermore, the guide pipe is arranged in a serpentine shape along the surface of the heat exchange plate.

[0009] Furthermore, a locking mechanism is included, which specifically comprises: a mounting block, which is arranged on both sides of the top of the cover plate; a card rod, which is fixedly connected to the bottom of the mounting block; a card plate, which is rotatably mounted on both sides of the card rod; a first guide rod, which is arranged on both sides of the card rod, and the card plate can slide on the first guide rod; and a first elastic member, which is sleeved on the first guide rod.

[0010] Furthermore, a sealing mechanism is included, which specifically comprises: a support plate, which is arranged on a side away from the liquid collecting tank; an air bag, which is mounted on the support plate; a limit plate, which is arranged on the side of the liquid collecting tank, above the air bag, and is used to limit the maximum expansion height of the air bag; a second guide rod, which is fixed to the support plate; a pressure plate, which is slidably mounted on the second guide rod and is used to press the air bag; a second elastic member, which is sleeved on the second guide rod; an air duct, which is connected to the air bag; a sealing air bag, which is embedded in the shell and connected to the air duct, and is used to form a sealing layer between the shell and the cover plate.

[0011] Furthermore, it also includes: a U-shaped plug rod, both ends of which are plugged into the pressure plate and the limit plate.

[0012] Furthermore, it also includes: a condenser, which is installed inside the liquid collecting tank.

[0013] Furthermore, it also includes: a liquid inlet tank cover, which is arranged at the liquid inlet of the liquid collecting tank.

[0014] Furthermore, it also includes: a protective shell, which is arranged outside the cylinder.

[0015] Compared with the existing technology, the utility model has the following technical effects: 1. The heat dissipation and explosion-proof mechanism of this device can respond quickly when the battery encounters abnormal conditions such as overcharging, and separates the power clamp from the electrode sleeve through a mechanical mechanism to achieve emergency power-off, thereby preventing the internal current of the battery from continuing to increase. At the same time, the built-in cooling system takes away the heat around the battery through the circulating coolant, effectively reducing the battery temperature and preventing thermal runaway caused by overheating, thereby achieving the purpose of preventing explosion.

[0016] 2. The design of the locking mechanism on the cover ensures that the cover is firmly locked during installation. Through mechanical linkage, the cover can fit tightly against the shell. Even under non-human interference, such as vibration or slight impact, the cover will not open accidentally, ensuring the overall sealing and safety of the battery system.

[0017] 3. Through the setting of the sealing mechanism, a reliable sealing barrier can be formed between the cover and the outer shell. This design effectively isolates moisture and other pollutants in the external environment, prevents them from invading the battery, avoids the risk of battery short circuit, ensures the long-term stable operation of the battery and extends its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the three-dimensional cross-sectional structure of the shell, connecting seat and heat exchange plate of the utility model.

[0020] Figure 3 It is a schematic three-dimensional cross-sectional structural diagram of the liquid collecting box, water pump and guide pipe of the utility model.

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the cover plate, electrode sleeve and mounting block of the utility model.

[0022] Figure 5 For this utility model Figure 4 Enlarged view of point A in the middle.

[0023] Figure 6 It is a schematic diagram of the three-dimensional cross-sectional structure of the support plate, airbag and limit plate of the utility model.

[0024] Figure 7 It is a schematic three-dimensional cross-sectional structural diagram of the liquid collecting tank, condenser pipe and liquid inlet tank cover of the utility model.

[0025] Markings in the accompanying drawings: 1: outer shell, 2: connecting seat, 3: heat exchange plate, 4: cover plate, 5: battery, 6: electrode sleeve, 7: power clamp, 8: liquid collecting tank, 9: connecting pipe, 10: water pump, 11: guide pipe, 12: cylinder, 13: connecting rod, 14: push plate, 15: mounting block, 16: clamping rod, 17: clamping plate, 18: first guide rod, 19: first elastic part, 20: support plate, 21: air bag, 22: limit plate, 23: pressure plate, 2301: U-shaped plug rod, 24: air guide pipe, 25: sealing air bag, 26: second guide rod, 27: second elastic part, 28: condenser, 29: liquid inlet tank cover, 30: protective shell. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example 1

[0028] See also Figure 1 and Figure 2 A heat dissipation and explosion-proof mechanism for a battery shell includes a shell 1; a connecting seat 2, the connecting seat 2 is installed on the left and right sides of the shell 1 and is provided with a card slot; a cover plate 4, the cover plate 4 is embedded in the top of the shell 1 to seal the internal space of the shell 1; a battery 5, the battery 5 is installed inside the shell 1; an electrode sleeve 6, the electrode sleeve 6 is symmetrically arranged on the cover plate 4; a power clip 7, the power clip 7 is arranged on the electrode sleeve 6, and the power clip 7 can be used to conveniently connect the electrodes of the battery 5 to realize the charging operation of the battery 5; a heat dissipation and explosion-proof mechanism, the heat dissipation and explosion-proof mechanism is arranged on the shell 1.

[0029] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 7, the heat dissipation and explosion-proof mechanism includes a heat exchange plate 3, which is tightly attached to the outside of the battery 5 to conduct the heat generated by the battery 5; a liquid collecting tank 8, which is arranged on the right side of the shell 1 and is used to store coolant; a liquid inlet tank cover 29, which is arranged on the liquid inlet of the liquid collecting tank 8 and is used to close the liquid collecting tank 8 to prevent impurities from entering; a connecting pipe 9, which is arranged on the lower side of the outside of the liquid collecting tank 8; a water pump 10, which is installed on the connecting pipe 9 to pump coolant; a guide pipe 11, which is arranged on the surface of the heat exchange plate 3, one end of the guide pipe 11 is connected to the water outlet end of the water pump 10, and the other end is connected to the liquid collecting tank 8 to transport coolant, and the guide pipe 11 flows along the heat exchange plate 3. The surface is arranged in a serpentine shape to increase the contact area with the heat exchange plate 3 for better heat exchange; the condenser 28 is installed inside the liquid collecting tank 8 to cool the liquid passing through, further improving the heat dissipation efficiency; the cylinder 12 is installed on the front side of the outer shell 1; the connecting rod 13 is fixedly connected to the movable rod of the cylinder 12; the push plate 14 is slidably installed on the electrode sleeve 6 and is fixedly connected to the connecting rod 13, and is used to separate the power clamp 7 from the electrode sleeve 6 under the action of the cylinder 12 to achieve power off; the protective shell 30 is arranged outside the cylinder 12 to protect the cylinder 12 from the influence of the external environment, extend its service life, and at the same time improve the safety and reliability of the entire device.

[0030] In the event of an abnormal overcharging, the safety mechanism is triggered, the cylinder 12 starts, pushing the connecting rod 13, and then driving the push plate 14 to rise, lifting the power clamp 7 and separating it from the electrode, realizing an emergency power-off operation to prevent the battery 5 from further overheating. At the same time, the heat exchange plate 3 is in close contact with the battery 5, continuously conducting the heat from the surface of the battery 5 to the outside, with a significant heat dissipation effect. In addition, the water pump 10 is started to draw the coolant inside the liquid collection tank 8 into the guide pipe 11, so that the coolant circulates in the guide pipe 11, taking away the heat around the battery 5, further enhancing the heat dissipation effect, and preventing the battery 5 from overheating.

[0031] Example 2

[0032] Based on Example 1, please refer to Figure 4 and Figure 5, also includes a locking mechanism, which specifically includes a mounting block 15, the mounting block 15 is arranged on the left and right sides of the top of the cover plate 4; a card rod 16, the card rod 16 is fixedly connected to the bottom of the mounting block 15; a card plate 17, the card plate 17 is rotatably mounted on the front and rear sides of the card rod 16 through a rotating shaft structure; a first guide rod 18, the first guide rod 18 is arranged on the front and rear sides of the card rod 16, and the card plate 17 can slide back and forth on the first guide rod 18; a first elastic member 19, the first elastic member 19 is sleeved on the first guide rod 18, and the two ends of the first elastic member 19 are respectively connected to the card plate 17 and the card rod 16.

[0033] In the initial state, the card plate 17 is in an open state under the action of the first elastic member 19. When installing the cover 4, first align it with the shell 1 to ensure that the card rod 16 is aligned with the card slot on the shell 1. Then, put the cover 4 into the shell 1, and the lower end of the card rod 16 enters the card slot. In this process, the space limitation of the card slot forces the card plate 17 to close inward, and the first elastic member 19 is compressed and deformed. When the card plate 17 completely passes through the card slot, the elastic force of the first elastic member 19 prompts the card plate 17 to quickly reset, and the card plate 17 opens again to limit the movement of the card rod 16, completing the locking operation, thereby ensuring the stability of the cover 4 installation and preventing the cover 4 from being accidentally opened without human operation.

[0034] See also Figure 6 , also includes a sealing mechanism, which specifically comprises a support plate 20, the support plate 20 being arranged on a side away from the liquid collecting tank 8; an inflatable bag 21, the inflatable bag 21 being mounted on the top of the support plate 20; a limiting plate 22, the limiting plate 22 being arranged on the left side of the liquid collecting tank 8, above the inflatable bag 21, and being used to limit the maximum expansion height of the inflatable bag 21; a second guide rod 26, the second guide rod 26 being fixed to the support plate 20; a pressing plate 23, the pressing plate 23 being slidably mounted on the second guide rod 26, the pressing plate 23 being used to press the inflatable bag 21; a U-shaped insertion rod 2301, the U-shaped insertion rod 2301 The two ends are inserted into the pressure plate 23 and the limit plate 22, and the U-shaped insertion rod 2301 is used to lock the position of the pressure plate 23 to prevent it from accidentally moving in the non-operating state, thereby ensuring the stability of the inflation pressure of the inflatable bag 21; the second elastic member 27, the second elastic member 27 is sleeved on the second guide rod 26, and the two ends of the second elastic member 27 are respectively connected to the pressure plate 23 and the support plate 20; the air guide tube 24, the air guide tube 24 is connected to the inflatable bag 21; the sealing air bag 25, the sealing air bag 25 is embedded in the shell 1, connected to the air guide tube 24, and is used to form a sealing layer between the shell 1 and the cover plate 4.

[0035] When the cover 4 is installed in place and locked, the operator pulls the pressure plate 23 to overcome the resistance of the second elastic member 27, so that the pressure plate 23 presses the airbag 21 downward. After the airbag 21 is pressurized, the internal air is sent into the sealing airbag 25 through the air duct 24. Then the pressure plate 23 is released. Under the elastic force of the second elastic member 27, the pressure plate 23 is reset and the inside of the sealing airbag 25 is re-inflated. In this way, the pressure plate 23 is continuously pulled to inflate the sealing airbag 25. After receiving the air, the sealing airbag 25 gradually expands and fills the gap between the cover 4 and the outer shell 1, forming a tight sealing layer, which effectively isolates external moisture and prevents moisture from invading the interior of the battery 5, ensuring the safe operation of the battery 5 and extending its service life.

[0036] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A battery housing heat dissipation and explosion-proof mechanism, comprising: Housing (1); A connecting seat (2), the connecting seat (2) being mounted on both sides of the housing (1) and having a card slot thereon; a cover plate (4), the cover plate (4) being embedded and mounted on the top of the housing (1); a battery (5), the battery (5) being installed inside the housing (1); an electrode sleeve (6), the electrode sleeve (6) being symmetrically arranged on the cover plate (4); A power supply clamp (7), the power supply clamp (7) being arranged on the electrode sleeve (6); The invention is characterized by a heat dissipation and explosion-proof mechanism, wherein the heat dissipation and explosion-proof mechanism is arranged on the housing (1).

2. The battery housing heat dissipation and explosion-proof mechanism according to claim 1, characterized in that: The heat dissipation and explosion-proof mechanism comprises: A heat exchange plate (3), the heat exchange plate (3) being closely attached to the outside of the battery (5); a liquid collecting tank (8), the liquid collecting tank (8) being arranged on one side of the housing (1); a connecting pipe (9), the connecting pipe (9) being arranged outside the liquid collecting tank (8); a water pump (10), the water pump (10) being mounted on the connecting pipe (9); A flow guide pipe (11), the flow guide pipe (11) is arranged on the surface of the heat exchange plate (3), one end of the flow guide pipe (11) is connected to the water outlet end of the water pump (10), and the other end is connected to the liquid collecting tank (8); a cylinder (12), the cylinder (12) being mounted outside the housing (1); A connecting rod (13), wherein the connecting rod (13) is fixedly connected to the movable rod of the cylinder (12); and a push plate (14), wherein the push plate (14) is slidably mounted on the electrode sleeve (6) and is fixedly connected to the connecting rod (13).

3. The battery housing heat dissipation and explosion-proof mechanism according to claim 2, characterized in that: The guide pipe (11) is arranged in a serpentine shape along the surface of the heat exchange plate (3).

4. The battery housing heat dissipation and explosion-proof mechanism according to claim 3, characterized in that: Also included is a locking mechanism, which specifically comprises: Mounting blocks (15), the mounting blocks (15) being arranged on both sides of the top of the cover plate (4); A clamping rod (16), the clamping rod (16) being fixedly connected to the bottom of the mounting block (15); A card plate (17), the card plate (17) is rotatably mounted on two side surfaces of the card rod (16); A first guide rod (18), wherein the first guide rod (18) is arranged on two side surfaces of the clamping rod (16), and the clamping plate (17) can slide on the first guide rod (18); A first elastic member (19), wherein the first elastic member (19) is sleeved on the first guide rod (18).

5. The battery housing heat dissipation and explosion-proof mechanism according to claim 4, characterized in that: It also includes a sealing mechanism, which specifically comprises: a support plate (20), the support plate (20) being arranged on a side away from the liquid collecting tank (8); an inflatable bag (21), the inflatable bag (21) being mounted on the support plate (20); a limiting plate (22), the limiting plate (22) being arranged on a side of the liquid collecting tank (8) and located above the inflatable bag (21); a second guide rod (26), the second guide rod (26) being fixedly connected to the support plate (20); a pressing plate (23), wherein the pressing plate (23) is slidably mounted on the second guide rod (26); a second elastic member (27), wherein the second elastic member (27) is sleeved on the second guide rod (26); an airway tube (24), the airway tube (24) being connected to the inflatable bag (21); A sealing airbag (25) is embedded in the housing (1) and communicated with the air guide tube (24).

6. The battery housing heat dissipation and explosion-proof mechanism according to claim 5, characterized in that: Also includes: A U-shaped plug rod (2301), with both ends of the U-shaped plug rod (2301) plugged into the pressure plate (23) and the limiting plate (22).

7. The battery housing heat dissipation and explosion-proof mechanism according to claim 6, characterized in that: Also includes: A condenser (28), wherein the condenser (28) is installed inside the liquid collecting tank (8).

8. The battery housing heat dissipation and explosion-proof mechanism according to claim 7, characterized in that: Also includes: A liquid inlet tank cover (29) is provided at the liquid inlet of the liquid collecting tank (8).

9. The battery housing heat dissipation and explosion-proof mechanism according to claim 8, characterized in that: Also includes: A protective shell (30) is provided outside the cylinder (12).

Images