TW201401616A - Heat-dissipating, thermally insulated and flame-retarding battery safety module - Google Patents

Abstract

This invention provides a heat-dissipating, thermally insulated and flame-retarding battery safety module, in which a conductive module is respectively disposed at two ends of a battery set, and at least one conductive module connected with a blower and an extinguisher. The blower can output cool air or hot air, and the extinguisher can output fire extinguishing foam or powder. A control unit is connected with each conductive module, the blower and the extinguisher to control the temperature around the conductive modules, such that the blower or the extinguisher can be started when the temperature around the conductive modules is higher or lower than a predetermined value, allowing the blower and extinguisher to provide cool air or hot air or fire extinguishing foam or powder to the conductive modules and battery set. Therefore, the safety efficacies of heat dissipation, thermal insulation and flame retardancy can all be achieved.

Description

Battery safety module that can dissipate heat and keep warm

The invention relates to a battery of an electric vehicle, and more particularly to a battery safety module capable of dissipating heat, keeping warm and flame retardant.

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, there is currently no better electric vehicle battery design to avoid overheating, undercooling and burning of the battery.

The main object of the present invention is to provide a battery safety module capable of dissipating heat and warming and being flame-retardant, which is connected with a blowing device and a fire extinguishing device, and can automatically drive the air blowing device and make the battery pack when overheating or undercooling occurs. It can operate normally efficiently in a proper temperature range, and when a fire is generated, the fire extinguishing device can be automatically driven to generate a flame retardant effect, and the safety effect of heat dissipation, warmth and flame retardancy can be obtained.

The reason is that, in order to achieve the foregoing objects, the present invention provides a The battery safety module with heat dissipation and flame retardancy can be connected with a air supply device and a fire extinguishing device, which can output cold air or hot air, and the fire extinguishing device can output fire extinguishing foam or powder, and the battery safety module includes a battery. The group includes a plurality of battery cells; the two conductive modules are disposed at the two ends of the battery pack, respectively, and comprise a box body, wherein the internal space of each of the box bodies is connected to the air blowing device and the fire extinguishing device, and a plurality of conductive sheets are disposed in the box body And electrically connecting the conductive ends of the battery cells, each of the boxes is respectively provided with a plurality of air outlets corresponding to one side of the battery pack; and a control unit connecting the boxes, the air blowing device and the fire extinguishing device, respectively, The temperature inside the box, when the temperature in each box exceeds or falls below a preset value, the air blowing device or the fire extinguishing device is activated, so that the air blowing device and the fire extinguishing device can deliver cold air or hot air, fire fighting foam or fire extinguishing powder to each box. .

Preferably, each of the casings comprises a cover shell and a cover sheet respectively, and each of the shells is respectively provided with a plurality of receiving openings and air outlets on one side of the battery core, and each of the battery cores is threaded at one end. The conductive sheet is placed in the housing, and the air blowing device and the fire extinguishing device are connected to the housing.

Preferably, the open end edge of each of the housings is provided with a stepped portion, and each of the cover sheets is complementarily disposed on the step, and each of the receiving openings and the air outlet is disposed on one side of the corresponding cover sheet of the housing. The conductive sheet is placed in the housing.

Preferably, each of the housings is further provided with a plurality of sockets, and each of the cover sheets is further provided with a plurality of through holes corresponding to the sockets, and a plurality of conductive rods are inserted The socket contacts the conductive sheet and protrudes through the hole.

Preferably, the first conductive bar is inserted into a socket of a box and contacts the conductive sheet, and the through hole is protruded. The second conductive rod is placed on the first conductive rod and the second conductive rod. The sockets of the two casings are in contact with the conductive sheets to protrude the through holes of the other casing.

Preferably, the two engaging members are respectively disposed between the two bodies of the two conductive modules and are located outside the battery pack, and an outer side of each of the engaging members is respectively provided with an engaging portion.

Preferably, each of the engaging members respectively includes an engaging portion of the body and the protruding body, and each of the engaging portions forms a fitting groove with the body.

Preferably, the control unit comprises a plurality of sensing devices and driving devices electrically connected, the sensing device is disposed in the casing, and the driving device is connected to the air blowing device and the fire extinguishing device for receiving the signal of the sensing device And drive the air supply device or fire extinguishing device.

Preferably, the sensing device is a thermal chip, and the driving device is a relay, and the control switch of the air blowing device and the fire extinguishing device is connected.

Preferably, the box body communicates with the air blowing device and the fire extinguishing device through a tube.

In the following, a preferred embodiment of the present invention will be further described in conjunction with the drawings. As shown in the first to fifth figures, a preferred embodiment of the present invention can dissipate heat and keep warm. The battery safety module 10 can be connected to a conventional air supply device 1 and a fire extinguishing device 2, which is a device that can output cold air or hot air, and the fire extinguishing device 2 is conventionally capable of outputting fire extinguishing foam (such as CO ₂ foam), or of extinguishing powder extinguisher, safety of the battery module system 10 includes a battery pack 12, 14, 15 and a second conductive module control unit 16.

The battery pack 12 is composed of a plurality of battery cells 22.

The two conductive modules 14 and 15 are disposed on the top and bottom conductive ends of each of the battery cells 22 of the battery pack 12, and respectively comprise a casing 24, 25 and are disposed in the casings 24 and 25 and electrically connected to the batteries. A plurality of conductive sheets 26 of conductive ends of the core 22. Each of the casings 24 and 25 includes a cover shell 28 and a cover sheet 30 respectively. The shell 28 of the casing 24 is communicated with the air blowing device 1 and the fire extinguishing device 2 through a tube 34. The open end ring of the 28 is provided with a first step 38, and each of the cover sheets 30 is complementarily locked on the step 38. Further, the bottom side of each of the shells 28 is provided with a plurality of receiving openings 40 and air outlets 42 and four. The corners are provided with four sockets 44, and each of the cover sheets 30 is provided with a plurality of through holes 46. Each of the conductive sheets 26 is placed on the bottom side of the housing 28 to electrically connect the battery cells 22.

The control unit 16 includes a sensing device 50 and a driving device 52. The sensing device 50 is a conventional thermal chip disposed in the casing 24 (any position outside the casing 24). In order to sense the temperature around the casing 24, a signal can be output when the temperature of the casing 24 exceeds or falls below a predetermined value (built in the sensing device 50), and the driving device 52 is known. Relay (such as An electromagnetic relay or the like is electrically connected to the sensing device 50 and the air blowing device 1 and the control switch of the fire extinguishing device 2 for receiving the signal of the sensing device 50 to drive the control switch of the air blowing device 1 or the fire extinguishing device 2 The air blowing device 1 or the fire extinguishing device 2 can transport cold air or hot air, fire extinguishing foam or fire extinguishing powder into the casing 24, and is interspersed between the battery cells 22 via the respective air outlets 42.

In addition, the battery safety module 10 further includes a first conductive bar 17 and a second conductive bar 18. The first conductive bar 17 is inserted into the socket 44 on the side of the casing 24 and contacts the conductive sheet 26 and the protruding cover. The through hole 46 of the sheet 30, the second conductive rod 18 is disposed between the sockets 44 on the other side of the two cases 24, 25, and contacts the conductive sheet 26 in the two cases 24, 25, and protrudes from the box 25 Through hole 46. The second engaging member 19 is disposed between the casings 36 of the two casings 24 and 25 and located outside the battery pack 12, and has a substantially rectangular body 54 and a protruding body 54 respectively. A fitting portion 56 is formed between the engaging portion 56 and the body 54 to form a recess 58. Each of the engaging members 19, 20 is adapted to be engaged to amplify the number of battery safety modules 10, and the first and second conductive bars 17, 18 are used as electrodes.

Therefore, the battery safety module 10 of the present invention can be used as a battery of an electric vehicle, and its features and functions are as follows: when the battery safety module 10 is operated, if the sensing device 50 senses the temperature around the casing 24 When the preset value is exceeded (overheated) or lower (undercooled), a signal can be output to the driving device 52, and the driving device is installed. The control switch of the air blowing device 1 can be driven by the air blowing device 1 so that the air blowing device 1 can transport cold air or hot air into the casing 24, and then spread through the air outlets 42 between the battery cells 22, so that Reducing or increasing the temperature of the battery safety module 10 results in the heat dissipation or warming of the battery safety module 10, so that the battery safety module 10 can operate within a suitable temperature range. If the sensing device 50 senses that the temperature around the casing 24 instantaneously exceeds the preset value of the overheat sensing (such as the high temperature of the fire), a signal may be output, so that the driving device 52 can drive the fire extinguishing device 2 The control switch further enables the fire extinguishing device 2 to deliver fire-extinguishing foam or fire-extinguishing powder to the inside of the casing 24 and between the battery cells 22 for use in extinguishing fire with fire-fighting foam or fire-extinguishing powder.

It can be seen that, in the battery safety module 10 of the present invention, the two conductive modules 14 and 15 disposed at the top and bottom ends of the battery pack 12 are disposed in the casings 24 and 25, so that Avoid the situation that the conductive sheet of the conventional car battery is exposed and is easily touched and electrically shocked.

Secondly, the present invention utilizes the design of the sensing device 50, the driving device 52, the air blowing device 1, and the fire extinguishing device 2, and can sense the temperature change of the casing 24, and the battery safety module 10 can be overheated. In the case of too cold or fire, the air blowing device 1 or the fire extinguishing device 2 is automatically activated to deliver cold air, hot air or fire extinguishing foam, fire extinguishing powder to the inside of the casing 24 and the respective battery cells 22, thereby ensuring that The effect of the battery safety module 10 operating normally at an appropriate temperature.

It should be noted that the sensing device and the driving device of the control unit of the present invention are not limited to the aforementioned thermal chip and relay, and may be any type of temperature sensor and driving air blowing device or fire extinguishing device. Electronic components or mechanical devices.

In summary, the present invention provides a battery safety module capable of dissipating heat and warmth and flame retardant, which can automatically drive the air blowing device in a situation of overheating or undercooling, so that the battery pack can be in an appropriate temperature range. It can operate normally efficiently, and when the fire is burned, the fire extinguishing device can be automatically driven to generate a flame retardant effect, and the safety effect of heat dissipation, warmth and flame retardancy can be obtained, which is of practical value; Yes, the present invention does meet the requirements of the invention patent and submits an application according to law.

10‧‧‧Battery Security Module

1‧‧‧Air supply device

2‧‧‧Fire extinguishing device

12‧‧‧Battery Pack

14, 15‧‧‧ Conductive Module

16‧‧‧Control unit

17‧‧‧First Conductive Rod

18‧‧‧Second conductive rod

19‧‧‧Inlays

22‧‧‧ battery core

24, 25‧‧‧ box

26‧‧‧Conductor

28‧‧‧Shell

30‧‧‧ Cover

34‧‧‧ pipes

38‧‧‧

40‧‧‧ accommodating mouth

42‧‧‧air outlet

44‧‧‧ socket

46‧‧‧through hole

50‧‧‧Sensing device

52‧‧‧ drive

54‧‧‧Ontology

56‧‧‧Interface

58‧‧‧Inlay

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

The second figure is a three-dimensional combination diagram of a battery pack and two conductive modules in a preferred embodiment of the present invention.

The third figure is an exploded view in the second figure.

The fourth figure is a side view of the second figure.

The fifth figure is a schematic diagram of the top side of the second figure.

10‧‧‧Battery Security Module

12‧‧‧Battery Pack

14, 15‧‧‧ Conductive Module

17‧‧‧First Conductive Rod

18‧‧‧Second conductive rod

19‧‧‧Inlays

22‧‧‧ battery core

42‧‧‧air outlet

46‧‧‧through hole

Claims (10)

The utility model relates to a battery safety module capable of dissipating heat and warming and flame retardant, which can be connected with a air supply device and a fire extinguishing device, which can output cold air or hot air, and the fire extinguishing device can output fire extinguishing foam or fire extinguishing powder, the battery safety module The utility model comprises: a battery pack comprising a plurality of battery cells; and two conductive modules disposed at two ends of the battery pack, respectively comprising a box body, wherein the inner space of each of the box bodies is connected with the air blowing device and the fire extinguishing device, and the plurality of conductive sheets, The casing is disposed in the casing and electrically connected to the conductive ends of the battery cells, each of the casings is respectively provided with a plurality of air outlets corresponding to one side of the battery pack; and a control unit is connected to each of the casings, the air blowing device and the fire extinguishing device. The temperature of each of the casings can be sensed, and when the temperature around the casing exceeds or falls below a preset value, the air blowing device or the fire extinguishing device is activated, so that the air blowing device or the fire extinguishing device can transport cold air or hot air and extinguish the fire. Foam or fire extinguishing powder is supplied to each of the casings, and is distributed to the respective battery cells through the respective air outlets. The battery safety module capable of dissipating heat and warming and flame retardant according to claim 1, wherein each of the casings comprises a cover and a cover piece respectively, and each of the bases corresponds to one of the battery cells. A plurality of receiving openings and a plurality of air outlets are respectively disposed on the side, and one end of each of the battery cells is disposed in the receiving opening, the conductive sheet is disposed in the housing, and the air blowing device and the fire extinguishing device are connected to the housing. The battery safety module capable of dissipating heat and warming and flame retardant according to claim 2, wherein each of the housings has an open-faced housing, and the open end edge ring has a first-order portion, and each of the cover sheets They are complementarily placed on the step, and each of the receiving opening and the air outlet is disposed on one side of the corresponding cover sheet of the housing, and the conductive sheet is disposed in the housing. The battery safety module capable of dissipating heat and warming and flame retardant according to claim 1 or 2, wherein each of the housings further comprises a plurality of sockets, and each of the cover sheets further has a plurality of through holes corresponding to the sockets. A plurality of conductive rods are inserted into the socket and contact the conductive sheets to protrude through holes. The battery safety module capable of dissipating heat and warming and flame retardant according to claim 4, wherein the first conductive rod and the second conductive rod are disposed, and the first conductive rod is inserted into a box. The socket contacts the conductive sheet and protrudes through the hole, and the second conductive rod is inserted between the sockets of the two boxes and contacts the conductive sheet to protrude the through hole of the other box. The battery safety module capable of dissipating heat and warming and flame retardant according to claim 1 or 2, further comprising two engaging members, which are oppositely connected between the boxes of the two conductive modules and located outside the battery pack An engaging portion is respectively disposed on an outer side of each of the engaging members. The battery safety module capable of dissipating heat and warming and flame retardant according to claim 6 , wherein each of the engaging members comprises a body and a protruding body, and each of the engaging portion and the body is Form a groove. As described in the first paragraph of the patent application, it can be cooled, warmed and flame retarded. The battery safety module, wherein the control unit comprises a plurality of sensing devices and driving devices electrically connected, the sensing device is disposed in the box body, and the driving device is connected to the air blowing device and the fire extinguishing device for receiving the feeling The signal of the measuring device drives the air blowing device or the fire extinguishing device. The battery safety module capable of dissipating heat and warming and flame retardant according to claim 8 , wherein the sensing device is a thermal chip, and the driving device is a relay, and the control switch connecting the air blowing device and the fire extinguishing device . The battery safety module capable of dissipating heat and warming and flame retardant according to claim 1, wherein the box body and the air blowing device and the fire extinguishing device are respectively connected through a tube.