TW201424794A - Temperature-controlling fire extinguishing device - Google Patents

Abstract

The present invention provides a temperature-controlling fire extinguishing device, which can be used to control the interior temperature of a battery case of an electric vehicle or to extinguish a fire and comprises a box and an airflow returning unit, a temperature control unit, a fire extinguisher device, and a control unit arranged inside the box. The box has an end arranged with an air inlet opening, and an opposite end arranged with an air outlet opening. The air outlet opening communicates with the battery case. The airflow returning unit allows air to return. The temperature control unit functions to change the temperature of air. The fire extinguisher device is in communication with the air outlet opening and capable of discharging a fire extinguishing material. The control unit controls the activations/de-activations of the airflow returning unit, the temperature control unit, and the fire extinguisher device. As such, switch is made available among modes of natural introduction of air, temperature control, and fire extinguishment to conduct temperature control or fire extinguishment of the battery case.

Description

Temperature controlled fire extinguishing device

The present invention relates to battery protection technology, and more particularly to a temperature controlled fire extinguishing device that can be used as a battery box safety device.

According to the environmental protection demand for energy saving and carbon reduction in recent years, electric vehicles (electric vehicles, electric motors) have gradually been accepted and favored by people. At present, all major auto manufacturers in the world are also involved in research and development and sales.

The system design of electric vehicles contends. However, its power source is mainly battery, and the battery life and power supply stability are very important for electric vehicles. The battery-based lead-acid battery used in the early electric motor vehicles is because the lead-acid battery has the advantages of large electromotive force, simple structure, wide operating temperature, mature technology and low price. However, it has environmental problems, heavy weight and long service life. The shortcomings to be overcome, the lithium battery (lithium phosphate battery) gradually developed in recent years has a cycle life of 5 times that of lead-acid batteries, and the discharge power is 6.6 times that of lead-acid batteries, and the charging time is less than 2 hours, only It requires 1/4 of the lead-acid battery, and the volumetric weight is only 50% of the lead acid, and there is no memory effect. Therefore, the current electric vehicle mostly uses the lithium battery as the power source. However, the current production cost of lithium batteries is still not low, accounting for more than 50% of the cost of electric vehicles. Whether electric vehicles can be popularized in the future, battery technology improvement and cost reduction are key points.

Secondly, an electric car requires thousands of lithium batteries (electricity). The core is discharged at the same time, the temperature generated is very high, the high heat will not only cause the rapid decay of the performance of the lithium battery, but also the danger of causing the battery to explode. At present, the technology for controlling the battery of the electric vehicle does not overheat, mainly by setting the circuit. The electronic component control battery management system to avoid overheating of the battery, such as the "High Performance Start Battery" of the Republic of China No. M374997 and the "Lithium Starter Battery Protection Device for Vehicles" of M423314 are shown.

Secondly, in addition to overheating, if the ambient temperature of the electric vehicle is very low and too cold, it will affect the output of the battery energy, and the temperature of overheating or undercooling will cause the battery capacity and life to be reduced. Furthermore, if the battery of the electric vehicle accidentally catches fire due to a short circuit or other factors, it is likely to cause a danger of burning the electric vehicle.

However, the current safety mechanisms to avoid overheating, undercooling and fire burning of batteries are built into the battery control system and there are no other preferred auxiliary safety devices.

The main object of the present invention is to provide a temperature control fire extinguishing device which can be used as a battery box safety device for inputting air or fire extinguishing material into a battery box of an electric vehicle and adjusting the temperature of the air, and adjusting the inside of the battery box. The temperature or the fire in the battery box in case of fire, the practical value is very good.

In order to achieve the foregoing objectives, the present invention provides a temperature-controlled fire extinguishing device comprising a box body having an air inlet at one end and another The outlet is provided with an air outlet, and the air outlet is connected to the battery box of the electric vehicle; a return air unit is disposed in the box and corresponding to the air inlet, and includes a row of air outlets and a return air outlet for returning air to the air An opening and closing device for opening or closing the air outlet and the air return port; a temperature control unit disposed at one end of the corresponding air outlet of the box for changing the air temperature; a fire extinguishing device disposed in the box The air outlet is connected to the body; a control unit is connected to each of the return air unit, the temperature control unit and the fire extinguishing device for controlling whether each of the return air unit, the temperature control unit and the fire extinguishing device are activated.

Further, a battery is further disposed in the casing and electrically connected to each of the return air unit, the temperature control unit and the fire extinguishing device.

Further, the box body is provided with a vertical plate, the air passage is located on one side of the air passage, a partition plate is disposed in the air passage and abuts the vertical plate, and the return air unit and the temperature control unit are disposed at the two ends of the partition plate. A vent is formed in the partition.

Further, the opening and closing assembly includes a control motor electrically connected to the control unit, and a flap is disposed on the power output shaft of the control motor and corresponding to the air outlet and the return air port, and is driven by the control motor to rotate to a predetermined position.

Further, when the flap is rotated to the position of the bottom side of the parallel box, it is located above the vent, and the air can only flow to the temperature regulating unit and the air outlet through the vent.

Further, the return air unit further includes a filter, which is disposed on Between the air inlet and the opening and closing assembly to filter air impurities.

Further, the temperature control unit further comprises a fan device corresponding to the temperature regulating member for increasing the speed of the air flowing through the temperature regulating member.

Further, the temperature regulating member is spaced apart from the inner wall of the casing by an appropriate distance.

Further, the temperature regulating member is an electrothermally cooled wafer.

Further, the fire extinguishing device is disposed on one side of the air passage, and the fire extinguishing material is sprayed from the air outlet through a plurality of spray pipes.

Hereinafter, the second preferred embodiment of the present invention will be further described in detail with reference to the following:

First, referring to the first to third figures, a temperature control fire extinguishing device 10 according to a preferred embodiment of the present invention is disposed on the side of the battery case 1 of the electric vehicle for adjusting the internal temperature of the battery case 1 or The fire can be extinguished when the battery is burned, and includes a box body 11, a return air unit 12, a temperature control unit 13, a fire extinguishing device 14, and a control unit 15.

The casing 11 includes a closed portion 22 and an open portion 24. The closed portion 22 is provided with an axially extending vertical plate 26 for partitioning the interior of the closed portion 22 into an air passage 28 and a chamber. 30. The two ends of the air passage 28 respectively have an air inlet 32 and two air outlets 34. The air inlet 32 is for air inlet. The air outlet 34 is connected to the battery box 1 of the electric vehicle, and a partition 36 is disposed on the air outlet. The air passage 28 abuts against the vertical plate 26, and has a vent 38 formed thereon, and the closed portion An exhaust air outlet 40 and a return air outlet 42 are provided on the top side of one end of the air inlet 32 for air returning.

The return air unit 12 is disposed at one end of the air inlet 28 corresponding to the air inlet 32 and includes a screen 44 and an opening and closing assembly 46. The filter 44 is corresponding to the air inlet 32 and may be a filter material such as a sponge for filtering air impurities entering from the air inlet 32. The opening and closing assembly 46 is interposed between the partition 36 and the filter 44. The control motor 48 is formed by a control motor 48 and a flap 50 provided on a power output shaft (not shown) of the control motor 48. The control motor 48 is fixed to a carrier 52, and a vent is formed on the carrier 52. The flap 50 is interposed between the bracket 52 and the partition 36 and corresponds to the air outlet 40 and the return air opening 42 . The area of the air duct 50 is the same as the cross-sectional area of the space between the carrier 52 and the partition 36. The control motor 48 is driven to rotate to a predetermined position. Therefore, when the flap 50 is rotated to the position of the bottom side of the vertical box 11, the air inlet 32 is connected to the air vent 54 and the air outlet 40, and the air return port 42 is connected to the air vent 38 for The air entering the air inlet 32 can be exhausted from the air outlet 40, and the air return 42 is supplied to the outside air to flow through the air vent 38 to the temperature control unit 13, whereby the air inside the air passage 28 can be made by the return air design. The temperature is the same as the outside air (the temperature is generated by controlling the operation of the motor 48). When the flap 50 is rotated to the position of the bottom side of the parallel box 11, it is located above the vent 38. At this time, the flap 50 shields the vent 40 and the return air port 42, and the air inlet 32 only communicates with the vent 54 with vent 38. With this, The opening and closing assembly 46 can open or close the air outlet 40 and the return air opening 42 by the flap 50 to control whether or not to return air.

The temperature control unit 13 includes a temperature regulating member 56 and a fan device 58. The temperature regulating member 56 is a conventional electrothermally cooled wafer disposed at one end of the air outlet 28 corresponding to the air outlet 34 for generating and changing the temperature, and the top end is spaced apart from the inner wall of the closed portion 22 for air supply. Circulation. The fan device 58 is a conventional pressure type fan motor, and is disposed on the two plates 60 between the partition plate 36 and the temperature regulating member 56 for pressurizing the air and increasing the flow rate of the air so that the air can be blown. The temperature member 56 is sent to the battery case 1 from the air outlet 34 after the temperature is changed. The plurality of through holes 62 are formed in the two plates 60.

The fire extinguishing device 14 is a fire extinguisher that can be sprayed with fire-fighting foam or fire-extinguishing powder, and is disposed in the chamber 30. The second spray pipe 64 passes through the vertical plate 26 and extends into the two air outlets 34 for making fire-fighting foam. Or the fire extinguishing powder can be input into the battery case 1 of the electric vehicle with the air.

The control unit 15 is electrically connected to each of the opening and closing assembly 46, the temperature regulating member 56, the fan device 58, and the fire extinguishing device 14, and is built in the computer of the electric vehicle, the battery control system, or a separate setting for controlling Whether each of the opening and closing assembly 46, the temperature regulating member 56, the fan device 58, and the fire extinguishing device 14 is actuated. The control unit 15 can be a component for receiving and outputting control signals, such as a control chip or a firmware program. This is a conventional technique, and its detailed configuration is not described herein.

In addition, each of the opening and closing assembly 46, the temperature regulating member 56, and the fan device 58 The battery of the battery box 1 is electrically connected to the fire extinguishing device 14, and the operating battery can be supplied by the battery of the battery box 1.

Therefore, the temperature control fire extinguishing device 10 of the present invention can be driven by the control unit 15 to drive the opening and closing assembly 46, the temperature regulating member 56, the fan device 58, or the fire extinguishing device 14 to generate three modes of operation: natural air intake, temperature regulation and fire extinguishing, each The mode works as follows:

Natural air intake mode: As shown in the fourth figure, when the battery box 1 of the electric vehicle is operating normally and the temperature is not abnormal, the control unit 15 does not cause the temperature regulating member 56, the fan device 58 and the fire extinguishing device 14 to act, and only promotes The flap 50 is rotated to a position on the bottom side of the vertical casing 11, so that air can enter the air passage 28 from the air inlet 32, and then the impurities are filtered through the filter 44, and then discharged through the vent 54 from the air outlet 40, and then The air return port 42 enters the air passage 28, and the air temperature inside the air passage 28 can be made the same as the outside air, and the air entering the air return port 42 passes through the vent 38, the through hole 62, and the temperature regulating member. After the gap between the 56 and the inner wall of the casing 11, the air outlet 34 can be discharged. Therefore, in the natural air intake mode, the temperature control fire extinguishing device 10 can deliver room temperature air to the battery box 1 to reduce the heat generated by the battery in the operation of the battery box 1.

Temperature adjustment mode: when the battery control system of the electric vehicle senses that the internal temperature of the battery box 1 exceeds or falls below a preset value, the signal can be sent to the control unit 15, and the control unit 15 can prompt the control motor 48 to adjust the temperature The member 56 and the fan device 58 are actuated, and the flap 50 is rotated. To the bottom side of the parallel box body 11, as shown in the fifth figure, the temperature regulating member 56 is heated or desuperheated, and the air can be directly received by the fan device 58 via the vents 54, the vents 38, and the through holes 62. After the temperature adjustment member 56 is accelerated and the temperature is changed, the cold air or hot air can be blown to the inside of the battery case 1 by the air outlet port 34, thereby adjusting the temperature inside the battery case 1.

Fire extinguishing mode: When the battery box 1 control system of the electric vehicle senses that the internal temperature of the battery box 1 instantaneously exceeds a preset value, the control unit 15 can drive the fire extinguishing device 14 to output the fire extinguishing foam or the fire extinguishing powder to the inside of the battery box 1 for performing Extinguishing.

It can be seen from the above that the temperature control fire extinguishing device of the present invention can be used as a safety device for an electric vehicle battery box, that is, when the battery box operates normally without temperature abnormality, the temperature control fire extinguishing device is a natural air intake mode. The room temperature air is sent to the battery box to promote the flow of air in the battery box to discharge the heat generated by the battery; when the temperature of the battery box is abnormal, the temperature control fire extinguishing device can automatically adjust to the temperature adjustment mode to send the temperature or Cooling the air to the battery box, causing the temperature inside the battery box to drop or rise to a normal state; and in the event of a fire in the battery box, the temperature control fire extinguishing device can automatically adjust to a fire extinguishing mode to extinguish the fire foam or The fire extinguishing powder is sprayed out to the inside of the battery box to extinguish the fire. In other words, the temperature control fire extinguishing device has the effect of dissipating heat, adjusting temperature and flame retarding the battery case of the electric vehicle.

As shown in the sixth figure, a temperature control fire extinguishing device 70 according to another preferred embodiment of the present invention is substantially configured to be in phase with the temperature control fire extinguishing device 10. The difference is that the open portion 74 of the box 72 can hold a battery 76 for supplying power for operation of other components without consuming power from the battery of the electric vehicle.

It should be noted that the battery control system capable of detecting the temperature of the battery box includes a temperature sensing device, and the temperature sensing device may be additionally connected to the temperature control fire extinguishing device to be electrically connected to the control unit.

In summary, the temperature control fire extinguishing device provided by the invention can input air or fire extinguishing material into the battery box of the electric vehicle, and can adjust the temperature of the air, and can adjust the temperature inside the battery box or in case the battery box Fire is used to extinguish the fire as a safety device for the battery box. The practical value is very good. The reason is that the invention does meet the requirements of the invention patent and submits an application according to law.

1‧‧‧ battery box

10‧‧‧temperature controlled fire extinguishing device

11‧‧‧Box

12‧‧‧ return air unit

13‧‧‧temperature control unit

14‧‧‧Fire extinguishing device

15‧‧‧Control unit

22‧‧‧closed section

24‧‧‧open section

26‧‧‧ 立板

28‧‧‧ airway

30‧‧ ‧ room

32‧‧‧air inlet

34‧‧‧ air outlet

36‧‧‧Baffle

38‧‧‧ vents

40‧‧‧ exhaust vents

42‧‧‧ return air outlet

44‧‧‧ Filter

46‧‧‧Opening and closing components

48‧‧‧Control motor

50‧‧‧Wind film

52‧‧‧ Carrier Board

54‧‧‧ vent

56‧‧‧temperature control parts

58‧‧‧Fan device

60‧‧‧ boards

62‧‧‧through hole

64‧‧‧Steam tube

70‧‧‧temperature controlled fire extinguishing device

72‧‧‧Box

74‧‧‧Open section

76‧‧‧Battery

The first figure is a system diagram of a preferred embodiment of the present invention.

The second drawing is a side view of a preferred embodiment of the invention.

The third drawing is a top view of a preferred embodiment of the invention.

The fourth figure is a schematic view of the operation of a preferred embodiment of the present invention, showing the air flow path of the natural intake mode.

Figure 5 is a schematic illustration of the operation of a preferred embodiment of the present invention showing the air flow path of the tempering mode.

Figure 6 is a top plan view of another preferred embodiment of the present invention.

1‧‧‧ battery box

10‧‧‧temperature controlled fire extinguishing device

11‧‧‧Box

12‧‧‧ return air unit

13‧‧‧temperature control unit

14‧‧‧Fire extinguishing device

15‧‧‧Control unit

Claims (10)

A temperature-controlled fire extinguishing device comprises: a box body having an air passage therein, an air inlet port and an air outlet port connected to the air passage end, the air outlet port and the battery box of the vehicle; a return air unit, Disposed in the air passage and corresponding to the air inlet, comprising a row of air outlets and a return air outlet for air returning air, and a opening and closing component for opening or closing the air outlet and the return air outlet; The unit is disposed in the air passage and corresponding to the air outlet, and includes a temperature regulating component for changing the temperature of the air flowing through the surface thereof; a fire extinguishing device is disposed in the box body and communicates with the air outlet port for discharging the fire extinguishing material And a control unit connecting each of the return air unit, the temperature control unit and the fire extinguishing device for controlling whether each of the return air unit, the temperature control unit and the fire extinguishing device are actuated. The temperature control fire extinguishing device of claim 1, further comprising a battery disposed in the casing and electrically connecting each of the return air unit, the temperature control unit and the fire extinguishing device. The temperature control fire extinguishing device of claim 1 or 2, wherein the box body is provided with a vertical plate, the air passage is located on one side of the air passage, and a partition plate is disposed in the air passage and abuts the vertical plate. The return air unit and the temperature control unit are disposed on the two ends of the partition, and the partition There is a vent. The temperature control fire extinguishing device of claim 3, wherein the opening and closing assembly comprises a control motor electrically connected to the control unit, a flap, disposed on the power output shaft of the control motor and corresponding to the air outlet The air return port is driven by the control motor to rotate to a predetermined position for controlling whether air can pass through the air outlet and the air return port. The temperature control fire extinguishing device according to claim 4, wherein the flap is rotated to a position parallel to the bottom side of the casing, and is located above the vent to allow air to flow only through the vent to temperature regulation. Unit, air outlet output. The temperature control fire extinguishing device of claim 1 or 2, wherein the return air unit further comprises a filter screen disposed between the air inlet and the opening and closing assembly for filtering air impurities. The temperature control fire extinguishing device according to claim 1 or 2, wherein the temperature control unit further comprises a fan device corresponding to the temperature adjusting member for increasing the speed of the air flowing through the temperature regulating member. The temperature control fire extinguishing device according to claim 7, wherein the temperature regulating member is separated from the inner wall of the casing by an appropriate distance. The temperature control fire extinguishing device according to claim 8, wherein the temperature regulating member is an electrothermal refrigerating chip. The temperature control fire extinguishing device according to claim 3, wherein the fire extinguishing device is disposed on one side of the air passage, and the fire extinguishing material is sprayed from the air outlet through a plurality of spray pipes.