TWI816427B - Cooling and fire extinguishing device for electric storage system - Google Patents

Abstract

The present invention provides a cooling and fire extinguishing device for electric storage system, which is arranged in a casing including at least one power supply unit, and a second liquid inlet of the cooling device for the power storage system penetrates an outer side of the casing, and a fluid The pipeline is arranged on the inner side of the casing, one end of the fluid pipeline is connected to the second liquid inlet, the other end of the fluid pipeline is connected to the at least one power supply unit, and a sensing unit is electrically connected to the processing unit , and sense the temperature of the at least one power supply unit to generate a sensing signal, wherein a fluid enters the fluid pipeline from the second liquid inlet, and the fluid passes through the fluid pipeline to the at least one power supply unit.

Description

Cooling fire extinguishing device for power storage system

The present invention relates to a cooling and fire extinguishing device for an electrical storage system, and in particular, to a cooling device that can transport liquid through a pipeline connected to an electric energy supply unit.

With the evolution of the times, the energy density of energy storage units represented by lithium batteries has accelerated, solving the battery life problem that has plagued electric vehicles for nearly a century. Emerging electric vehicle brands represented by Tesla have emerged, and traditional fuel vehicle manufacturers have also Accelerating the development and production of electric vehicles. At the same time, the construction of charging piles, battery swap stations, fuel cell supporting facilities for electric vehicles, such as hydrogen refueling stations, is also accelerating.

With the development of battery energy storage units and concerns about rising mineral energy reserves and oil prices, major automobile manufacturers have begun to make attempts in the field of new energy vehicles, and the industry has gradually launched different pure electric vehicles and motorcycles. , bicycle and other designs.

A pure electric vehicle, also known as a pure electric vehicle or a battery electric vehicle (BEV), refers to a vehicle that uses a battery to power an electric motor, and the electric motor drives the vehicle while the battery power is supplemented by an external power source.

Pure electric vehicles do not emit exhaust gas themselves, so they do not pollute the air around the road they travel on. The ability and energy efficiency of electric motors at low speeds and acceleration are very outstanding, so pure electric vehicles are used in applications that require Work vehicles with frequent stops (vehicles with high torque requirements such as buses and garbage trucks) can improve efficiency. When the fuel vehicle is parked, the engine still needs to idle to avoid stalling, which wastes fuel and produces unnecessary carbon emissions and pollution. In contrast, the motor of a pure electric vehicle is completely stationary when parked, avoiding unnecessary Energy consumption, and kinetic energy can be recovered to recharge the battery when braking and going downhill. While making full use of the energy, it will not generate waste heat from braking, avoid parts loss, and does not require any maintenance. Even for private electric vehicles, It also has the effect of reducing waste and controlling the environment in cities with heavy traffic.

Pure electric vehicles use batteries to provide electric power to the vehicle. The electric motor converts electrical energy into kinetic energy to propel the vehicle. Battery performance determines the maximum range and charging time of pure electric vehicles. Therefore, the industry is gradually developing batteries with higher energy density.

The characteristics of electric vehicle batteries are their high power-to-weight ratio, specific energy and energy density: if the electric vehicle battery is lighter, the weight of the vehicle will also be lighter, which can improve the performance of the vehicle. Considering its power density, the most common one is lithium-ion. Batteries and lithium-ion polymer batteries. Other batteries used in electric vehicles include lead-acid batteries (full-tank lead-acid batteries, deep-cycle lead-acid batteries, and valve-regulated lead-acid batteries), nickel-cadmium batteries, nickel-metal hydride batteries, etc. Occasionally, zinc-air batteries and fused batteries are also used. Sodium nickel chloride battery in salt battery.

However, as batteries pursue higher energy density, the heat energy generated by the battery during charging and discharging gradually increases, causing the battery temperature to continue to rise. Corresponding temperature control is required. If the temperature of the battery is not properly controlled, or the battery is damaged by external forces ( (such as puncture, extrusion), the battery is easy to burn or even explode due to high temperature, and because the high energy density of the battery itself continues to generate heat, the fire it generates is difficult to cool down and put out. Therefore, the industry is in urgent need of a shell that can quickly cool down. The device is designed to cope with the battery-related environment where energy density is gradually increasing.

In view of the above-mentioned problems of the conventional technology, the present invention provides a cooling and fire extinguishing device for a power storage system, which uses a sensing unit to sense the temperature of at least one power supply unit and generates a sensing signal. The signal is sent to the processing unit, so that the processing unit sends out an alarm signal correspondingly, and can correspondingly inject fluid from the second liquid inlet and the fluid pipeline into at least one power supply unit, thereby achieving the effect of quickly cooling down the power supply unit.

One object of the present invention is to provide a cooling and fire extinguishing device for a power storage system, which is provided with a second liquid inlet in the housing, so that at least one power supply unit of the housing is connected to the second liquid inlet and the fluid pipeline, and utilizes The sensing unit senses the temperature of at least one power supply unit and generates a sensing signal to the processing unit, so that the processing unit sends an alarm signal accordingly. When the temperature of the at least one power supply unit is too high, the fluid is correspondingly discharged from the second liquid inlet, The fluid pipeline is injected into at least one power supply unit, and this structure achieves the effect of quickly cooling the power supply unit.

In order to achieve the above-mentioned purposes and effects, the present invention provides a cooling and fire extinguishing device for a power storage system, which is installed in a casing. At least one power supply unit is provided on an inner side of the casing. The at least one power supply unit is provided with A first liquid inlet. The cooling fire extinguishing device of the power storage system includes: a second liquid inlet, a fluid pipeline and a sensing unit. The second liquid inlet is disposed on one outside of the housing, and the The fluid pipeline is arranged on the inside of the housing. One end of the fluid pipeline is connected to the second liquid inlet. The other end of the fluid pipeline is connected to the at least one power supply unit. The processing unit is arranged on the housing. The inner side is disposed on one side of the fluid pipeline, and the sensing unit is disposed on one side of the at least one power supply unit. The sensing unit senses the temperature of the at least one power supply unit and generates a sensor. A signal is detected, wherein a fluid enters the fluid pipeline from the second liquid inlet, and the fluid then passes through the fluid pipeline to the at least one power supply unit; with this structure, a device is used to quickly cool down the power supply unit.

In one embodiment of the present invention, a processing unit is further included, which is disposed on the inside of the housing. The sensing unit is electrically connected to the processing unit, and the sensing unit senses the temperature generated by the at least one power supply unit. A sensing signal, the processing unit receives the sensing signal from the sensing unit and sends an alarm signal.

In one embodiment of the present invention, the fluid pipeline further includes a control valve electrically connected to the processing unit. The processing unit receives the sensing signal from the sensing unit and sends a control signal to the Control valve to control the switch of the control valve.

In one embodiment of the present invention, the fluid enters the fluid pipeline from the second liquid inlet, and then passes through the fluid pipeline to the control valve. After the fluid passes through the control valve, the fluid enters the at least a power supply unit.

One embodiment of the present invention further includes a fire extinguisher connected to the second liquid inlet.

In one embodiment of the present invention, the fire extinguisher delivers the fluid. The fluid enters the fluid pipeline from the second liquid inlet, and then passes through the fluid pipeline to the control valve. After the fluid passes through the control valve , the fluid flows to the at least one power supply unit.

In one embodiment of the present invention, the fluid is water or a fire extinguishing agent.

In one embodiment of the present invention, the housing is provided on a carrier.

In one embodiment of the present invention, the housing is provided in a power exchange system.

In one embodiment of the present invention, a first electrode and a second electrode are provided at one end of the housing, and the at least one power supply unit is electrically connected to the first electrode and the second electrode.

In an embodiment of the present invention, the sensing unit senses gas around the at least one power supply unit and generates the sensing signal.

1: Cooling and fire extinguishing device of power storage system

2: Shell

201:First electrode

202: Second electrode

3:Power supply unit

4: First liquid inlet

5:Vehicle

6: Battery replacement system

10: Second liquid inlet

20: Fluid pipeline

22:Control valve

30: Processing unit

32:Alarm signal

34:Control signal

40: Sensing unit

42: Sensing signal

50:Fire extinguisher

F: fluid

Figure 1: It is a schematic structural diagram of one embodiment of the present invention; Figures 2A to 2B: It is a schematic diagram of the operation of one embodiment of the present invention; Figure 3: It is a circuit diagram of one embodiment of the present invention. Schematic diagram of sexual connection; Figure 4: It is a schematic diagram of a fire extinguisher according to one embodiment of the present invention; Figure 5: It is a schematic structural diagram of another embodiment of the present invention; and Figure 6: It is an embodiment of the present invention. Schematic diagram of the shell electrode.

In order to enable the review committee to have a further understanding and understanding of the characteristics and effects of the present invention, examples and accompanying descriptions are provided as follows: In view of the above-mentioned problems of the conventional technology, the present invention utilizes a shell. A second liquid inlet is provided outside the body, so that at least one power supply unit of the housing is connected to the second liquid inlet and a fluid pipeline, and a sensing unit is used to sense the at least one power supply unit. temperature, and generates a sensing signal to a processing unit, causing the processing unit to correspondingly send out an alarm signal. When the temperature of the at least one power supply unit is too high, a fluid will be sequentially supplied from the second liquid inlet. The fluid pipeline is injected into the at least one power supply unit for cooling. This structure solves the conventional problem that if the power supply unit overheats, it will be difficult to cool down and extinguish the fire.

Please refer to Figure 1, which is a schematic structural diagram of an embodiment of the present invention. As shown in the figure, this embodiment is a cooling fire extinguishing device 1 of an electrical storage system, which is installed in a shell 2, wherein the shell 2 At least one power supply unit 3 is provided inside one of the Liquid port 4 (as shown in Figure 2A), the cooling fire extinguishing device 1 of the power storage system includes a second liquid inlet 10, a fluid pipeline 20 and a sensing unit 40; in this embodiment, the at least A power supply unit 3 uses a lithium-ion battery, a lithium-ion polymer battery, a lead-acid battery, a nickel-cadmium battery, a nickel-hydrogen battery, a zinc-air battery or a sodium-nickel chloride battery, but this embodiment is not limited thereto.

Continuing from the above, as shown in Figure 1, in this embodiment, the housing 2 is provided on a vehicle 5, such as the housing of an electric car, an electric motorcycle, an electric bicycle or an electric bus, but this is not the case in this embodiment. limit.

Refer to Figure 1 again and refer to Figures 2A to 2B and Figure 3. Figures 2A to 2B are schematic diagrams of the operation of one embodiment of the present invention. Figure 3 is the electrical diagram of one embodiment of the present invention. Connection diagram, as shown in the figure, in this embodiment, the second liquid inlet 10 is disposed on one side of the housing 2. The housing 2 in this embodiment is an electric vehicle, so the second liquid inlet 10 is The liquid port 10 is disposed on an outer side of the carrier 5 , and the fluid pipeline 20 is provided on the inner side of the housing 2 . One end of the fluid pipeline 20 is connected to the second liquid inlet 10 , and the fluid pipeline 20 The other end is connected to the first liquid inlet 4 of the at least one power supply unit 3, so that the at least one power supply unit 3 is connected to the outside of the housing 2. The sensing unit 40 is disposed on the at least one power supply unit. On one side of the unit 3 , the sensing unit 40 senses the temperature generated by the at least one power supply unit 3 to generate a sensing signal 42 .

Continuing from the above, in one embodiment, the sensing unit 40 senses the gas around the at least one power supply unit 3 and generates the sensing signal 42 , for example, detecting toxic gas generated by the at least one power supply unit 3 .

Continuing from the above, in one embodiment, a processing unit 30 is further included, such as a vehicle computer. The sensing unit 40 is electrically connected to the processing unit 30 . The sensing unit 40 will sense the at least one power supply unit 3 . Temperature, the generated sensing signal 42 is transmitted to the processing unit 30 .

Continuing from the above, in this embodiment, the sensing unit 40 can use an infrared temperature measurement device to sense the temperature of the at least one power supply unit 3 and the surrounding gas with infrared rays. In one embodiment, the sensing unit 40 The sensing signal 42 is immediately transmitted to the processing unit 30 for the user to confirm the status of the at least one power supply unit 3 .

Referring again to Figures 2A to 2B and Figure 3, as shown in the figures, in this embodiment, the at least one power supply unit 3 is a power storage unit with high energy density. When the at least one power supply unit 3 passes When discharged or damaged by external force, the at least one power supply unit 3 generates heat energy and expands. At the same time, the sensing unit 40 senses the temperature of the at least one power supply unit 3 and sends out a sensing signal 42. The processing unit 30 receives the After the sensing signal 42 of the sensing unit 40 is judged accordingly, whether the temperature of the at least one power supply unit 3 exceeds the preset value, the processing unit 30 sends an alarm signal 32, for example, when the temperature of the at least one power supply unit 3 exceeds the preset value. When the temperature of the power supply unit 3 is too high or it is detected that the at least one power supply unit 3 produces toxic gas, the processing unit 30 sends out the alarm signal 32 so that users (such as drivers and staff) can receive the alarm immediately. If there is an abnormal condition of at least one power supply unit 3, the vehicle can be stopped immediately and a fire extinguishing and cooling channel can be opened, or the processing unit 30 can send the alarm signal 32 to a remote end, such as a fire switchboard, to control the radiation of a fluid F.

Continuing from the above, in this embodiment, when the alarm signal 32 is sent out, the user can inject the fluid F from the second liquid inlet 10 into the fluid pipeline 20 accordingly, and the fluid F enters the fluid pipeline 20 Then, the fluid F flows to the at least one power supply unit 3 through the fluid pipeline 20, so that the fluid F can directly contact the at least one power supply unit 3 and cool down.

Continuing from the above, in this embodiment, the fluid F is water, fire extinguishing agent, flame retardant, foaming agent or coolant to absorb a large amount of thermal energy generated by the at least one power supply unit 3. Further, the fluid F includes Liquid, gaseous, and colloidal objects that can cool down, flame retardant, and extinguish fires.

Referring again to Figures 2A to 2B and Figure 3 , as shown in the figures, in this embodiment, the fluid pipeline 20 further includes a control valve 22 , and the control valve 22 is electrically connected to the processing unit 30 . When at least one power supply unit 3 generates heat energy and expands, the processing unit 30 receives the sensing signal 42 of the sensing unit 40, and the processing unit 30 sends a control signal 34 to the control valve 22, causing the control valve 22 to Open and conduct the fluid pipeline 20 so that the fluid F can enter the at least one power supply unit 3 through the fluid pipeline 20. Similarly, when no alarm is issued, the processing unit 30 sends the control signal 34 to the control valve. 22. Close the control valve 22 to connect the fluid pipeline 20 so that the fluid F cannot enter.

Continuing from the above, in this embodiment, when the control valve 22 is opened, the fluid F enters the fluid pipeline 20 from the second liquid inlet 10 , and the fluid F then passes through the fluid pipeline 20 to the control valve 22 , after the fluid F passes through the control valve 22, the fluid F enters the at least one power supply unit 3, absorbs the heat energy of the at least one power supply unit 3, and prevents the at least one power supply unit 3 from catching fire or exploding.

Please refer to Figure 4, which is a schematic diagram of a fire extinguisher according to an embodiment of the present invention. As shown in the figure, this embodiment further includes a fire extinguisher 50, and the fire extinguisher 50 is connected to the second liquid inlet 10.

Continuing from the above, in this embodiment, the fire extinguisher 50 is connected to the second liquid inlet 10 and delivers the fluid F. The fluid F enters the fluid pipeline 20 from the second liquid inlet 10 and then passes through The fluid pipeline 20 goes to the control valve 22. After the fluid F passes through the control valve 22, the fluid F flows to the at least one power supply unit 3 and absorbs the heat energy of the at least one power supply unit 3; other aspects of this embodiment The structure and its action relationship are the same as those of the above-mentioned embodiments, so no further description will be given.

Continuing from the above, in this embodiment, the processing unit 30 can be connected to the fire extinguisher 50 and control the fire extinguisher 50 to inject into the second liquid inlet 10 while sending the alarm signal 32 .

Please refer to Figure 5, which is a schematic structural diagram of another embodiment of the present invention. As shown in the figure, this embodiment is a cooling and fire extinguishing device 1 for a power storage system, which is installed in a shell 2, wherein the shell At least one power supply unit 3 is provided inside one of the power storage systems. The cooling fire extinguishing device 1 of the power storage system includes a second liquid inlet 10, a fluid pipeline 20, a processing unit 30 and a sensing unit 40; in this implementation In this example, the at least one power supply unit 3 uses a lithium-ion battery, a lithium-ion polymer battery, a lead-acid battery, a nickel-cadmium battery, a nickel-metal hydride battery, a zinc-air battery or a sodium-nickel chloride battery, but this is not the case in this embodiment. limit.

Continuing from the above, as shown in Figure 5, in this embodiment, the housing 2 is provided in a power exchange system 6, such as a power exchange system, an energy storage device, an energy storage cabinet or a protective shell of an energy storage system. The other structures and operating relationships of the embodiment are the same as those of the above-mentioned embodiment, and therefore will not be described again.

Continuing from the above, the battery replacement system 6 means that when the vehicle's battery is being charged, the battery is not loaded on the vehicle, but is charged on a shelf, storage cabinet, etc., and the battery replacement system 6 is also prepared to charge the battery. To replace the vehicle; use the quick replacement method to ensure the continuous operation of the vehicle.

Please refer to Figure 6, which is a schematic diagram of a case electrode according to an embodiment of the present invention. As shown in the figure, this embodiment is a cooling and fire extinguishing device 1 for an electrical storage system, which is installed in a case 2, wherein the case At least one power supply unit 3 is provided inside the body 2. The cooling fire extinguishing device 1 of the power storage system includes a second liquid inlet 10, a fluid pipeline 20, a processing unit 30 and a sensing unit 40; In the embodiment, the at least one power supply unit 3 uses a lithium-ion battery, a lithium-ion polymer battery, a lead-acid battery, a nickel-cadmium battery, a nickel-metal hydride battery, a zinc-air battery or a sodium-nickel chloride battery, but this is not the case in this embodiment. this restriction.

Continuing from the above, as shown in Figure 6, in this embodiment, a first electrode 201 and a second electrode 202 are provided at one end of the housing 2, and the at least one power supply unit 3 is electrically connected to the first electrode. The electrode 201 and the second electrode 202, the first electrode 201 and the second electrode 202 are arranged on the housing 2 to form a power storage device, such as an industrial battery, a vehicle battery or a battery in a power swap station. Further, the power storage device can be installed on The electric vehicle achieves the effect of rapid power exchange. The other structures and operating relationships of this embodiment are the same as those of the above embodiment, so they will not be described again.

To sum up, the present invention provides a cooling and fire-extinguishing device for a power storage system, which is provided with a second liquid inlet in a casing (such as a vehicle or a power swap station) so that at least one power supply unit contained in the casing can communicate with the second liquid inlet. The liquid port and the fluid pipeline are connected. At the same time, the sensing unit is used to sense the temperature change of the power supply unit, and the health status of the power supply unit is continuously monitored, so that the processing unit sends an alarm signal corresponding to the signal of the sensing unit. When the temperature of the power supply unit exceeds When it is high, the user or the fire extinguishing device connected to the processing unit injects the fluid into the power supply unit through the second liquid inlet and the fluid pipeline. With this structure, the fluid can be quickly transported to the power supply unit and the power supply unit can be quickly absorbed. The effect of thermal energy further prevents the power supply unit from burning and achieves the effect of extinguishing fire. In order to solve the problem that conventional batteries pursue higher energy density, after the battery is damaged by external forces (such as puncture, extrusion), the battery is prone to generate high temperatures and burn. Even if it explodes, the high energy density of the battery itself will continue to generate heat, which makes the fire difficult to cool down and extinguish.

Therefore, this invention is indeed novel, progressive and can be used industrially. It should undoubtedly comply with the patent application requirements of my country’s Patent Law. I file an invention patent application in accordance with the law and pray that the Office will grant the patent as soon as possible. I am deeply grateful.

However, the above is only an embodiment of the present invention and is not intended to limit the scope of the present invention. Therefore, all equal changes and modifications can be made in accordance with the shape, structure, characteristics and spirit described in the patent scope of the present invention. All should be included in the patentable scope of the present invention.

1: Cooling and fire extinguishing device of power storage system

2: Shell

3:Power supply unit

5:Vehicle

10: Second liquid inlet

20: Fluid pipeline

30: Processing unit

40: Sensing unit

Claims (10)

A cooling fire extinguishing device for an electricity storage system, which is provided in a casing. At least one power supply unit is provided inside one of the housing. The at least one power supply unit is provided with a first liquid inlet. The cooling fire extinguishing device of an electricity storage system Include: a second liquid inlet, which is disposed on one outside of the housing; A fluid pipeline is provided on the inside of the housing. One end of the fluid pipeline is connected to the second liquid inlet, and the other end of the fluid pipeline is connected to the first liquid inlet of the at least one power supply unit. ;as well as a sensing unit disposed on one side of the at least one power supply unit, the sensing unit senses the temperature of the at least one power supply unit and generates a sensing signal; Wherein, a fluid enters the fluid pipeline from the second liquid inlet, and the fluid then passes through the fluid pipeline to the at least one power supply unit. The cooling and fire extinguishing device of the power storage system according to claim 1 further includes a processing unit, which is disposed on the inside of the housing, the sensing unit is electrically connected to the processing unit, and the sensing unit senses the at least one The temperature of the power supply unit generates a sensing signal, and the processing unit receives the sensing signal from the sensing unit and issues an alarm signal. The cooling fire extinguishing device of the power storage system as described in claim 2, wherein the fluid pipeline further includes a control valve, the control valve is electrically connected to the processing unit, the processing unit receives the sensing signal of the sensing unit, and A control signal is sent to the control valve to control the switch of the control valve. The cooling fire extinguishing device of the power storage system as described in claim 3, wherein the fluid enters the fluid pipeline from the second liquid inlet, and then passes through the fluid pipeline to the control valve. After the fluid passes through the control valve , the fluid enters the at least one power supply unit. The cooling fire extinguishing device of the power storage system as described in claim 4 further includes a fire extinguisher connected to the second liquid inlet, wherein the fire extinguisher delivers the fluid, and the fluid enters the fluid pipeline from the second liquid inlet , the fluid then passes through the fluid pipeline to the control valve. After the fluid passes through the control valve, the fluid flows to the at least one power supply unit. The cooling fire extinguishing device of the power storage system according to claim 1, wherein the fluid system is water, fire extinguishing agent, flame retardant, foaming agent or coolant. The cooling fire extinguishing device of the power storage system according to claim 1, wherein the housing is installed on a carrier. The cooling fire extinguishing device of the power storage system according to claim 1, wherein the housing is provided in a power exchange system. The cooling fire extinguishing device of the power storage system according to claim 1, wherein a first electrode and a second electrode are provided at one end of the housing, and the at least one power supply unit is electrically connected to the first electrode and the second electrode. The cooling fire extinguishing device of the power storage system according to claim 1, wherein the sensing unit senses the gas around the at least one power supply unit and generates the sensing signal.

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