阅读说明：本技术 一种新能源汽车用电池包防护装置及新能源汽车电池 (Battery pack protection device for new energy automobile and new energy automobile battery ) 是由 余亮 余万理 于 2020-12-30 设计创作，主要内容包括：本发明公开了一种新能源汽车用电池包防护装置及新能源汽车电池,包括：防护装置本体、支撑框架和上盖,所述防护装置本体一侧外壁底端固定连接有进风管,所述进风管远离所述防护装置本体的一端可拆卸连接有滤风管,所述防护装置本体一侧外壁底端固定连接有排风管；热量会通过散热板传递到其内部的冷却液中,而且电池包发出的温度会随着空气传递到上盖上,然后通过导热板传递到安装板上,安装板上的热量会被导热棒所吸收,然后通过导热棒上的散热棒把热量散发到外部的空气中去,而且通过滤风管能够将外部的冷却风导入到防护装置本体内,从而对防护装置本体内的电池包进行散热。(The invention discloses a battery pack protection device for a new energy automobile and a new energy automobile battery, which comprise: the air filter comprises a protective device body, a supporting frame and an upper cover, wherein an air inlet pipe is fixedly connected to the bottom end of the outer wall of one side of the protective device body; the heat can transmit its inside coolant liquid through the heating panel, and the temperature that the battery package sent can be covered along with the air transfer in addition, then transmit the mounting panel through the heat-conducting plate on, the heat on the mounting panel can be absorbed by the heat conduction stick, then go in the heat gives off the outside air through the heat dissipation stick on the heat conduction stick, and this is internal with the leading-in protector of outside cooling air through the strain tuber pipe in addition to this internal battery package of protector dispels the heat.)

1. The utility model provides a battery package protector for new energy automobile which characterized in that includes: the protective device comprises a protective device body (1), a supporting frame (2) and an upper cover (4), wherein the bottom end of the outer wall at one side of the protective device body (1) is fixedly connected with an air inlet pipe (12), one end of the air inlet pipe (12) far away from the protective device body (1) is detachably connected with an air filtering pipe (6), one end of the air filtering pipe (6) far away from the air inlet pipe (12) is connected with an external air conveying pipeline, an exhaust pipe (13) is fixedly connected with the bottom end of the outer wall at one side of the protection device body (1), one end of the exhaust pipe (13) far away from the protection device body (1) is connected with an external air outlet pipeline, the bottom of the inner wall of the protection device body (1) is fixedly connected with a supporting plate (14), the supporting plate (14) is provided with a ventilation hole (141), and the protective device body (1) is provided with two symmetrically distributed sliding grooves (15);

the protective device is characterized in that a heat dissipation plate (3) is arranged in the protective device body (1), a sliding plate (31) is fixedly connected with the heat dissipation plate (3), the sliding plate (31) is arranged in the sliding groove (15) and is in sliding connection with the protective device body (1), a sealing cover (321) is detachably connected to the top of the heat dissipation plate (3), a plastic sealing plate (33) is embedded on the heat dissipation plate (3), a cavity (34) is formed in the heat dissipation plate (3), cooling liquid (35) is filled in the cavity (34), the plastic sealing plate (33) is made of common plastic and is three millimeters thick, when the temperature in the device is too high, the plastic can be melted, so that the cooling liquid (35) in the cavity (34) can flow out, the device starts to be cooled, and the device is prevented from being ignited;

the protection device comprises a protection device body (1), wherein the outer wall of the top of the protection device body (1) is fixedly connected with a supporting frame (2), the supporting frame (2) is detachably connected with an upper cover (4), the top of the upper cover (4) is provided with a heat dissipation mechanism (5), and the heat dissipation mechanism (5) comprises a mounting plate (51), a heat conduction plate (52) and a heat conduction rod (53).

2. The battery pack protection device for the new energy automobile as claimed in claim 1, wherein an anti-corrosion coating (11) is uniformly coated on the outer wall of the protection device body (1), the anti-corrosion coating (11) is made of anti-corrosion paint, a connection threaded pipe (121) is fixedly connected to one end, away from the protection device body (1), of the air inlet pipe (12), and the air inlet pipe (12) is fixed to the air filter pipe (6) through the connection threaded pipe (121) in a threaded manner.

3. The battery pack protection device for the new energy automobile according to claim 1, further comprising: the utility model discloses a safety protection device, including protector body (1), limiting plate (16), limiting bolt (161), limiting plate (16) are connected with two symmetric distributions can be dismantled at protector body (1) top, be equipped with limiting bolt (161) on limiting plate (16), limiting plate (16) pass through limiting bolt (161) with protector body (1) spiro union is fixed, just limiting plate (16) are located spout (15) top, fixedly connected with fixed screwed pipe (32) on heating panel (3), sealed lid (321) with fixed screwed pipe (32) spiro union is fixed.

4. The battery pack protection device for the new energy automobile according to claim 1, further comprising: upper cover (4) with braced frame (2) block is connected, be equipped with fixing bolt (21) on braced frame (2), braced frame (2) pass fixing bolt (21) with upper cover (4) spiro union is fixed, braced frame (2) inner wall cementing is fixed with sealing layer (22), the material of sealing layer (22) is rubber.

5. The battery pack protection device for the new energy automobile according to claim 1, further comprising: mounting panel (51) are close to the one end fixedly connected with heat-conducting plate (52) of upper cover (4), keep away from heat-conducting plate (52) the one end of mounting panel (51) with upper cover (4) fixed connection, keep away from mounting panel (51) the one end of upper cover (4) can be dismantled and be connected with heat conduction stick (53), heat conduction stick (53) are close to the one end fixedly connected with installation screw rod (532) of mounting panel (51), heat conduction stick (53) pass through installation screw rod (532) with mounting panel (51) spiro union is fixed, heat conduction stick (53) outer wall fixedly connected with a plurality of evenly distributed's cooling rod (531).

6. The battery pack protection device for the new energy automobile according to claim 1, further comprising: strain tuber pipe (6) inner wall fixedly connected with impurity filter screen (61), strain tuber pipe (6) inner wall fixedly connected with dustproof filter screen (62), impurity filter screen (61) are located strain tuber pipe (6) inside keeping away from the one end of air-supply line (12), dustproof filter screen (62) are located strain tuber pipe (6) inside being close to the one end of air-supply line (12).

7. The battery pack protection device for the new energy automobile according to claim 6, further comprising: the heat dissipation plate (3) and the heat conduction plate (52) are made of copper, the mounting plate (51) and the heat conduction rod (53) are made of aluminum, and the heat dissipation rod (531) is made of copper.

8. The battery pack protection device for the new energy automobile as claimed in any one of claims 1-7, wherein the using steps are as follows:

a: when the battery pack protecting device is used, a battery pack is placed in an inner space of the protecting device body (1), the protecting device body (1) plays a role in protecting the battery, cooling liquid (35) is fully added into the heat dissipation plate (3), the heat dissipation plate (3) is connected with the protecting device body (1), the bottom of the upper cover (4) is inserted into the supporting frame (2), the supporting frame (2) and the upper cover (4) are fixed, the air filtering pipe (6) is connected with an external air conveying pipe, and the exhaust pipe (13) is connected with an external air outlet pipeline;

b: after the step A is finished, the battery pack can emit certain heat during use, the heat can be transferred to the cooling liquid (35) in the battery pack through the cooling plate (3), thereby reducing the temperature emitted by the battery pack, regularly opening the sealing cover (321) to replace the cooling liquid (35) in the cavity (34), transmitting the temperature emitted by the battery pack to the upper cover (4) along with the air, then the heat is transmitted to the mounting plate (51) through the heat-conducting plate (52), the heat on the mounting plate (51) is absorbed by the heat-conducting bar (53), then the heat is radiated to the outside air through the heat radiation rod (531) on the heat conduction rod (53), moreover, dust and impurities in cooling air entering the protection device body (1) from the outside can be filtered through the air filtering pipe (6), and poor contact caused by discharging of a battery in the battery pack due to the fact that the battery pack in the protection device body (1) is contaminated by dust is prevented;

c: after the step B is completed, if the temperature of the battery pack in the device protection device body (1) is too high, the plastic sealing plate (33) on the heat dissipation plate (3) can be burnt through and deformed by high temperature, then the cooling liquid (35) in the cavity (34) flows out, and then the battery pack is cooled, so that the condition that the battery pack catches fire is avoided.

9. A new energy automobile battery is characterized in that the battery pack protection device protection battery for the new energy automobile is used according to any one of claims 1 to 7.

Technical Field

The invention relates to the technical field of new energy automobile battery packs, in particular to a battery pack protection device for a new energy automobile and a new energy automobile battery.

Background

The new energy automobile comprises the following components: the electric driving and control system is the core of an electric automobile and is also the biggest difference from an internal combustion engine automobile, the electric driving and control system comprises a driving motor, a power supply, a speed regulation control device of the motor and the like, other devices of the electric automobile are basically the same as the internal combustion engine automobile, and the main power of a new energy automobile is a battery pack, so that the safe use of the power battery pack is very important.

However, current battery package can send certain heat when incessantly using, piles up unable effluvium together when these heats, will lead to battery package body high temperature, can lead to the battery package ageing, reduces the life of battery package, can lead to the battery package to take place the burning when the high temperature moreover, leads to certain hidden danger to people's life safety.

Disclosure of Invention

The invention aims to provide a battery pack protection device for a new energy automobile, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a battery pack protection device for a new energy automobile comprises: the protective device comprises a protective device body, a supporting frame and an upper cover, wherein an air inlet pipe is fixedly connected to the bottom end of the outer wall at one side of the protective device body, an air filtering pipe is detachably connected to one end, away from the protective device body, of the air inlet pipe, an air filtering pipe is connected to one end, away from the air inlet pipe, of the air filtering pipe, and is connected with an external air conveying pipeline, an exhaust pipe is fixedly connected to the bottom end of the outer wall at one side of the protective device body, one end, away from the protective device body, of the exhaust pipe is connected with an external air outlet pipeline, a supporting plate is fixedly connected to the bottom of the inner wall of the protective device body, air permeable holes are formed in the supporting plate, two symmetrically distributed sliding chutes are formed in the protective device body, a heat dissipation plate is arranged in the protective, the heat dissipation device comprises a heat dissipation plate and is characterized in that a plastic sealing plate is embedded in the heat dissipation plate, a cavity is formed in the heat dissipation plate, cooling liquid is filled in the cavity, the outer wall of the top of the protection device body is fixedly connected with a supporting frame, the supporting frame is detachably connected with an upper cover, and the top of the upper cover is provided with a heat dissipation mechanism which comprises a mounting plate, a heat conduction plate and a heat conduction rod.

Further, the outer wall of the protection device body is uniformly coated with an anti-corrosion coating, the anti-corrosion coating is made of anti-corrosion paint, the air inlet pipe is far away from one end of the protection device body and is fixedly connected with a connecting threaded pipe, and the air inlet pipe is fixedly connected with the air filtering pipe through the connecting threaded pipe in a threaded connection mode.

Further, the limiting plate that is connected with two symmetric distributions can be dismantled at protector body top, be equipped with spacing bolt on the limiting plate, the limiting plate passes through spacing bolt with protector body spiro union is fixed, just the limiting plate is located the spout top, fixedly connected with fixed screwed pipe on the heating panel, sealed lid with fixed screwed pipe spiro union is fixed.

Further, the upper cover with braced frame block is connected, braced frame is last to be equipped with fixing bolt, braced frame passes fixing bolt with the upper cover spiro union is fixed, braced frame inner wall cementing is fixed with the sealing layer, the material of sealing layer is rubber.

Furthermore, the plastics shrouding is ordinary plastics, and thickness is three millimeters, and when the device internal temperature reached the ignition point, plastics will take place to melt to the coolant liquid in the cavity will flow out, begins to cool down to the device, prevents that the device from taking place the condition of catching fire.

Further, the mounting panel is close to the one end fixedly connected with heat-conducting plate of upper cover, the heat-conducting plate is kept away from the one end of mounting panel with upper cover fixed connection, the mounting panel is kept away from the one end of upper cover can be dismantled and be connected with the heat conduction stick, the heat conduction stick is close to the one end fixedly connected with mounting screw of mounting panel, the heat conduction stick pass through mounting screw with the mounting panel spiro union is fixed, heat conduction stick outer wall fixedly connected with a plurality of evenly distributed's cooling rod.

Further, it is connected with the impurity filter screen to strain tuber pipe inner wall fixedly connected with, strain tuber pipe inner wall fixedly connected with dustproof filter screen, the impurity filter screen is located strain inside keeping away from of tuber pipe the one end of air-supply line, dustproof filter screen is located strain inside being close to of tuber pipe the one end of air-supply line

Furthermore, the heat dissipation plate and the heat conduction plate are both made of copper, the mounting plate and the heat conduction rod are both made of aluminum, and the heat dissipation rod is made of copper

Further, a battery package protector for new energy automobile, the usage steps are as follows:

a: when the protective device is used, the battery pack is placed in the inner space of the protective device body, the protective device body is used for protecting the battery, the cooling plate is filled with cooling liquid, then the cooling plate is connected with the protective device body, the bottom of the upper cover is inserted into the supporting frame, the supporting frame and the upper cover are fixed, the air filtering pipe is connected with the external air conveying pipe, and the exhaust pipe is connected with the external air outlet pipeline;

b: after the step A is finished, the battery pack can emit certain heat when in use, the heat can be transmitted to the cooling liquid in the battery pack through the heat dissipation plate, so that the temperature emitted by the battery pack is reduced, the sealing cover can be regularly opened to replace the cooling liquid in the cavity, the temperature emitted by the battery pack can be transmitted to the upper cover along with the air and then transmitted to the mounting plate through the heat conduction plate, the heat on the mounting plate can be absorbed by the heat conduction rod, then the heat can be dissipated to the outside air through the heat dissipation rod on the heat conduction rod, and dust and impurities in cooling air entering the protection device body from the outside can be filtered through the air filtering pipe, so that the battery pack in the protection device body is prevented from being contaminated by the dust to cause poor contact of battery discharge in the battery pack;

c: after step B is completed, if the temperature of the battery pack in the device protection device body is too high, the plastic sealing plate on the heat dissipation plate can be burnt through and deformed by higher temperature, then the cooling liquid in the cavity can flow out, and then the battery pack is cooled, so that the condition that the battery pack catches fire is avoided.

A new energy automobile battery, which uses the battery pack protection device protection battery of any one of claims 1 to 7.

Compared with the prior art, the invention has the beneficial effects that:

1. when the battery pack can send certain heat when in use, the heat can be transmitted to the coolant liquid inside the battery pack through the heating panel, thereby the temperature sent to the battery pack is cooled down, can also regularly open sealed lid and come to change the coolant liquid inside the cavity, and the temperature that the battery pack sent can be covered along with the air transmission, then transmit the mounting panel through the heat-conducting plate on, the heat on the mounting panel can be absorbed by the heat-conducting rod, then go in the outside air through the heat dissipation rod on the heat-conducting rod gives off the heat, and can be originally internal with the leading-in protector of outside cooling air through straining the tuber pipe, thereby dispel the heat to this internal battery pack of protector.

2. If the temperature of the inside battery package of device protector body is too high, the plastics shrouding on the heating panel can be burnt out by higher temperature and warp, then the inside coolant liquid of cavity will flow out, contact battery package and directly carry out further cooling to the battery package to avoid the battery package to take place the condition of catching fire.

3. When the battery pack protection device is used, dust and impurities in cooling air entering the protection device body from the outside can be filtered through the air filtering pipe, and poor contact of battery discharging inside the battery pack due to the fact that the battery pack inside the protection device body is contaminated by the dust is prevented.

4. When the air filter is used, the air filter pipe on the air inlet pipe can be replaced after the air filter pipe is used for a period of time, so that the blocking dust is prevented from blocking the entering of cooling air, and the upper cover can be opened periodically to draw out the heat dissipation plate, so that cooling liquid in the heat dissipation plate is replaced, and the maintenance and the repair of a device are facilitated for people.

Drawings

Fig. 1 is a schematic structural view of a battery pack protection device for a new energy automobile;

fig. 2 is a schematic structural view of a protection device body, a support frame, a heat dissipation plate, an upper cover and a mounting plate in a battery pack protection device for a new energy automobile;

fig. 3 is a schematic structural view of a protection device body, a support frame and a heat dissipation plate in a battery pack protection device for a new energy automobile;

fig. 4 is a schematic structural diagram of a heat dissipation plate in a battery pack protection device for a new energy automobile;

fig. 5 is another schematic structural diagram of a heat dissipation plate in a battery pack protection device for a new energy automobile;

FIG. 6 is an enlarged view of portion A of FIG. 1;

fig. 7 is a schematic structural view of an air inlet pipe and an air filtering pipe in the battery pack protection device for the new energy automobile;

fig. 8 is a schematic structural diagram of a heat dissipation mechanism in a battery pack protection device for a new energy vehicle.

Reference numerals: 1. a guard body; 11. an anti-corrosion coating; 12. an air inlet pipe; 121. connecting a threaded pipe; 13. an exhaust duct; 14. a support plate; 141. a ventilation hole; 15. a chute; 16. a limiting plate; 161. a limit bolt; 2. a support frame; 21. fixing the bolt; 22. a sealing layer; 3. a heat dissipation plate; 31. a slide plate; 32. fixing the threaded pipe; 321. a sealing cover; 33. a plastic closing plate; 34. a cavity; 35. cooling liquid; 4. an upper cover; 5. a heat dissipation mechanism; 51. mounting a plate; 52. a heat conducting plate; 53. a heat conducting rod; 531. a heat dissipation rod; 532. installing a screw rod; 6. filtering the air duct; 61. an impurity filter screen; 62. dustproof filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 8, a battery pack protection device for a new energy vehicle includes: the protective device comprises a protective device body 1, a supporting frame 2 and an upper cover 4, wherein the bottom end of the outer wall at one side of the protective device body 1 is fixedly connected with an air inlet pipe 12, one end of the air inlet pipe 12 far away from the protective device body 1 is detachably connected with an air filtering pipe 6, one end of the air filtering pipe 6 far away from the air inlet pipe 12 is connected with an external air conveying pipeline, the bottom end of the outer wall at one side of the protective device body 1 is fixedly connected with an exhaust pipe 13, one end of the exhaust pipe 13 far away from the protective device body 1 is connected with an external air outlet pipeline, the bottom of the inner wall of the protective device body 1 is fixedly connected with a supporting plate 14, the supporting plate 14 is provided with air through holes 141, the protective device body 1 is provided with two symmetrically distributed chutes 15, a heat dissipation plate 3 is arranged in the protective device body 1, inlay on the heating panel 3 and be equipped with plastics shrouding 33, cavity 34 has been seted up to heating panel 3 inside, and cavity 34 inside packing has coolant liquid 35, and 1 top outer wall fixedly connected with braced frame 2 of protector body can dismantle on the braced frame 2 and be connected with upper cover 4, and the 4 tops of upper cover are equipped with heat dissipation mechanism 5, and heat dissipation mechanism 5 includes mounting panel 51, heat-conducting plate 52 and heat conduction stick 53.

In this embodiment: an air inlet pipe 12 is fixedly connected to the bottom end of the outer wall at one side of a protection device body 1, an air filtering pipe 6 is detachably connected to one end, away from the protection device body 1, of the air inlet pipe 12, one end, away from the air inlet pipe 12, of the air filtering pipe 6 is connected with an external air conveying pipeline, an exhaust pipe 13 is fixedly connected to the bottom end of the outer wall at one side of the protection device body 1, one end, away from the protection device body 1, of the exhaust pipe 13 is connected with an external air outlet pipeline, a supporting plate 14 is fixedly connected to the bottom of the inner wall of the protection device body 1, ventilation holes 141 are formed in the supporting plate 14, two symmetrically distributed sliding chutes 15 are formed in the protection device body 1, a heat dissipation plate 3 is arranged in the protection device body 1, a sliding plate 31 is fixedly connected to the end of the heat dissipation, the cavity 34 is formed in the heat dissipation plate 3, the cooling liquid 35 is filled in the cavity 34, the supporting frame 2 is fixedly connected to the outer wall of the top of the protection device body 1, the upper cover 4 is detachably connected to the supporting frame 2, the heat dissipation mechanism 5 is arranged on the top of the upper cover 4, the heat dissipation mechanism 5 comprises a mounting plate 51, a heat conduction plate 52 and a heat conduction rod 53, when the protection device is used, the battery pack can emit certain heat, the heat can be transmitted to the cooling liquid 35 in the battery pack through the heat dissipation plate 3, so that the temperature emitted by the battery pack can be reduced, the sealing cover 321 can be opened periodically to replace the cooling liquid 35 in the cavity 34, the temperature emitted by the battery pack can be transmitted to the upper cover 4 along with the air and then transmitted to the mounting plate 51 through the heat conduction plate 52, the heat on the mounting plate 51 can be absorbed by the heat conduction rod 53, and then the heat can, and can filter dust and impurity in the outside cooling air that gets into protector body 1 through straining tuber pipe 6, prevent that the inside battery of protector body 1 from being infected with the dust and leading to the discharged contact failure of the inside battery of battery package, if when the temperature of the inside battery package of device protector body 1 was too high, plastics shrouding 33 on the heating panel 3 can be burnt out of shape by higher temperature, then the inside coolant liquid 35 of cavity 34 will flow out, then cool down the battery package, thereby avoid the battery package to take place the condition of catching fire.

Specifically, an anti-corrosion coating 11 is uniformly coated on the outer wall of the protection device body 1, the anti-corrosion coating 11 is made of anti-corrosion paint, a connecting threaded pipe 121 is fixedly connected to one end, away from the protection device body 1, of the air inlet pipe 12, and the air inlet pipe 12 is fixed with the air filtering pipe 6 in a threaded manner through the connecting threaded pipe 121; anticorrosive paint has good corrosion resistance and oxidation resistance, can play the effect of a protection to protector body 1 through anticorrosive coating 11, will connect screwed pipe 121 screw in to straining inside tuber pipe 6 in the installation, will connect screwed pipe 121 and screw out when dismantling to this realizes installation and the dismantlement between air-supply line 12 and the strain tuber pipe 6.

Specifically, two symmetrically distributed limiting plates 16 are detachably connected to the top of the protective device body 1, limiting bolts 161 are arranged on the limiting plates 16, the limiting plates 16 are fixed to the protective device body 1 through the limiting bolts 161 in a threaded manner, the limiting plates 16 are located above the sliding grooves 15, fixed threaded pipes 32 are fixedly connected to the heat dissipation plate 3, and sealing covers 321 are fixed to the fixed threaded pipes 32 in a threaded manner; the limiting plate 16 can limit the sliding plate 31 in the sliding groove 15, the sealing cover 321 can seal the heat dissipation plate 3, and people can unscrew the sealing cover 321 when needing to replace the cooling liquid 35.

Specifically, the upper cover 4 is connected with the support frame 2 in a clamping manner, the support frame 2 is provided with a fixing bolt 21, the support frame 2 penetrates through the fixing bolt 21 to be fixed with the upper cover 4 in a threaded manner, the inner wall of the support frame 2 is fixedly connected with a sealing layer 22 in an adhesive manner, and the sealing layer 22 is made of rubber; the fixing bolt 21 can fix the upper cover 4 and the supporting frame 2, and the sealing layer 22 can seal the supporting frame 2 and the upper cover 4, so that external dust is prevented from entering the protecting device body 1 through a gap between the supporting frame 2 and the upper cover 4.

Specifically, the plastic sealing plate 33 is made of common plastic, the thickness of the plastic sealing plate is three millimeters, and when the temperature in the device reaches an ignition point, the plastic melts, so that the cooling liquid 35 in the cavity 34 flows out, the device starts to be cooled, and the device is prevented from catching fire; the cooling liquid 35 can cool the high-temperature battery pack, thereby avoiding the occurrence of a fire.

Specifically, one end of the mounting plate 51 close to the upper cover 4 is fixedly connected with a heat conducting plate 52, one end of the heat conducting plate 52 far away from the mounting plate 51 is fixedly connected with the upper cover 4, one end of the mounting plate 51 far away from the upper cover 4 is detachably connected with a heat conducting rod 53, one end of the heat conducting rod 53 close to the mounting plate 51 is fixedly connected with a mounting screw 532, the heat conducting rod 53 is fixedly connected with the mounting plate 51 through the mounting screw 532 in a threaded manner, and the outer wall of the heat conducting rod 53 is fixedly connected with a plurality of uniformly; during installation, the installation screw 532 is screwed into the installation plate 51, and during disassembly, the installation screw 532 is screwed out, so that the installation and the disassembly between the heat conduction rod 53 and the installation plate 51 are completed.

Specifically, the inner wall of the air filtering pipe 6 is fixedly connected with an impurity filter screen 61, the inner wall of the air filtering pipe 6 is fixedly connected with a dustproof filter screen 62, the impurity filter screen 61 is positioned at one end, far away from the air inlet pipe 12, inside the air filtering pipe 6, and the dustproof filter screen 62 is positioned at one end, close to the air inlet pipe 12, inside the air filtering pipe 6; when the cooling air got into in straining tuber pipe 6, can filter the impurity of large granule the very first time through impurity filter screen 61, avoid the impurity of large granule to block up dustproof filter screen 62.

Specifically, the heat dissipation plate 3 and the heat conduction plate 52 are made of copper, the mounting plate 51 and the heat conduction rod 53 are made of aluminum, and the heat dissipation rod 531 is made of copper; copper has good thermal conductivity, can effectually carry out thermal transmission, and the material of aluminium is lighter moreover, can not increase too much device's dead weight.

A new energy automobile battery, which uses the battery pack protection device protection battery of any one of claims 1 to 7.

In summary, in the battery pack protection device for the new energy automobile provided by the invention, when in use, the battery pack is put into the inner space of the protection device body 1, the protection device body 1 is used for protecting the battery, the heat dissipation plate 3 is filled with the cooling liquid 35, the heat dissipation plate 3 is connected with the protection device body 1, the bottom of the upper cover 4 is inserted into the supporting frame 2 to fix the supporting frame 2 and the upper cover 4, the air filtering pipe 6 is connected with the external air conveying pipe, the exhaust pipe 13 is connected with the external air outlet pipeline, when in use, the battery pack can emit certain heat, the heat can be transmitted into the cooling liquid 35 inside the battery pack through the heat dissipation plate 3, so as to cool the temperature emitted by the battery pack, and the sealing cover 321 can be periodically opened to replace the cooling liquid 35 inside the cavity 34, and the temperature that the battery package sent can be along with the air transfer to on upper cover 4, then transmit on mounting panel 51 through heat-conducting plate 52, the heat on the mounting panel 51 can be absorbed by heat conduction stick 53, then go in radiating stick 531 gives off the heat to outside air through heat conduction stick 53, and can filter dust and impurity in the outside cooling air that gets into in protector body 1 through air filter pipe 6, prevent to be infected with the contact failure that the dust leads to the battery to wrap inside discharging on the battery package in protector body 1 inside, if when the temperature of the inside battery package of device protector body 1 was too high, plastics shrouding 33 on the heating panel 3 can be burnt out the deformation by higher temperature, then the inside coolant liquid 35 of cavity 34 will flow out, then cool down the battery package, thereby avoid the battery package to take place the condition of catching fire.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.