KR20220127073A - Flameless venting device for a battery of a electric car - Google Patents

Abstract

Provided is an anti-inflammatory exhaust device which is installed in an electric vehicle battery pack and relieves flame and high-pressure gas generated in a battery. According to the anti-inflammatory exhaust device for a battery of the present invention, a module casing (30) has a communication hole (32) through which the flame and the gas generated inside are discharged in one side. And, a partial cone-shaped anti-inflammatory exhaust body (22) mounted in one side of the module casing (30) includes a plurality of anti-inflammatory channels (14) in which the flame and the gas discharged through a communication hole (32) of the module casing (30) pass through the inside, are deflated, and are cooled. And, a connection unit of the present invention guides the flame and the gas discharged through the communication hole to the anti-inflammatory channels without external outflow. And, a relief valve (Va) installed on a front cover (20) momentarily discharges high pressure generated inside to the outside.

Description

Electric vehicle battery anti-inflammatory exhaust device {Flameless venting device for a battery of a electric car}

The present invention relates to an anti-inflammation and exhaust system for a battery of an electric vehicle, and more particularly, when a fire occurs in a battery for an electric vehicle, a battery of an electric vehicle configured to prevent flames from escaping to the outside from a battery module or battery pack It relates to an anti-inflammatory exhaust system.

A battery used as a driving source for an electric vehicle, which has recently started to be commercialized, may cause a rapid increase in internal temperature and a risk of flame generation due to various causes including external force. And although the exact cause is not known, recently, accidents such as a fire of the battery frequently occur in automobiles using at least a battery as a driving source. In addition, with respect to a fire that may occur in the battery of a vehicle, it should be possible to suppress the propagation of the flame to the adjacent battery module, and to prevent the flame from being discharged to the outside of the battery pack.

Korean Patent Publication No. 10-2017-14309, which is an example of a prior patent document, proposes a safety device against fire that may occur in such an automobile battery. According to these prior patent documents, it can be seen that the topic is only to install a flame arrester inside or outside the secondary battery. However, only by installing a flame arrester that prevents only the flame from going out of the module in this way, for example, has only a limited effect on suppression of fire.

An object of the present invention is to provide an anti-inflammatory exhaust device for an electric vehicle capable of maximally suppressing the propagation of high temperature or fire generated in a battery module of a vehicle battery to an adjacent module.

Another object of the present invention can be said to provide an anti-inflammation exhaust device capable of preventing the outflow of flames due to a fire occurring inside a battery pack for a vehicle.

Another object of the present invention is an anti-inflammatory exhaust device that prevents flames from leaking to the outside, such as being able to relieve the high pressure inside the casing of the battery module or the casing of the battery pack that packages part or all of the battery for a vehicle can be said to provide

According to the battery anti-inflammation and exhaust device of the electric vehicle according to the present invention, the module casing has a communication hole through which the flame and gas generated inside are formed on one side. And the anti-inflammatory exhaust body mounted on one side of the module casing, the flame and gas coming out through the communication hole of the module casing is provided with a plurality of anti-inflammatory channels that are quenched and cooled while passing through the interior. And the connection means of the present invention guides the flame and gas exiting the communication hole to the anti-inflammatory channel without external leakage.

According to an embodiment of the present invention, the anti-inflammatory channel is composed of a plurality of molded between the inner surface and the outer surface of the anti-inflammatory exhaust body, the connecting means is composed of a connection hole formed on the inner surface of the anti-inflammatory exhaust body to correspond to the communication hole.

And according to another embodiment of the present invention, the anti-inflammatory channel is composed of a plurality of molded between the inner and outer surfaces of the small air exhaust body, and the connecting means extends the outer surface of the anti-inflammatory exhaust body to surround the communication hole so as to be in close contact with the module casing. is installed

According to another embodiment of the present invention, the connection means is configured to include a front cover that forms a front space while surrounding the front of the module casing, and the inlet of the anti-inflammatory channel is located in the front space inside the front cover.

According to another embodiment of the present invention may further include a relief valve body. Here, the relief valve body is in close contact with the valve hole formed on the front cover to block the discharge passage or to be spaced apart from the valve hole to form a discharge passage, and a conical valve body, and an elastic member for attaching the valve body to the valve hole. can be Here, the valve body overcomes the force of the elastic force by the pressure of the front space and forms a discharge passage between the discharge hole and the discharge hole by the force of the elastic member to close the discharge passage.

In this embodiment, the valve body has a partial conical shape, the valve ball has a corresponding conical shape blocked or opened by the valve body, and a discharge passage having a certain length is formed between the valve body and the valve ball. desirable.

In this embodiment, the valve body is guided by the support shaft supported by the front cover at the center of the shaft, so that the discharge passage between the valve body and the valve hole is preferably spaced at a constant distance from the entire outer surface of the valve body. .

According to another embodiment of the present invention, it is installed on one surface of the module casing, the support passage having a discharge hole for discharging the high-pressure gas generated therein; It is configured to further include a relief valve that is elastically supported in a direction to block the valve ball by a spring, and is composed of a valve body that opens the valve ball against the spring when a high pressure generated inside the module casing acts. And it is preferable that the valve body has a partial conical shape, and the valve hole has a corresponding conical shape which is blocked or opened by the valve body.

According to the invention as described above, flames and gases generated inside the battery of the electric vehicle pass through the anti-inflammatory exhaust device attached to the outer surface of a plurality of module casings constituting the battery for the vehicle. Here, while passing through the anti-inflammatory channel of the anti-inflammatory and exhaust device, the flame is removed due to lack of oxygen, and the high temperature gas is inevitably lowered. Therefore, the advantage of preventing the flame from spreading to adjacent modules as the flame generated inside the battery module is leaked to the outside can be expected.

And, the relief valve body according to the present invention substantially lowers the internal pressure by evacuating the gas to the outside when the gas generated inside the battery becomes higher than the allowable pressure. Accordingly, it is possible to solve problems caused by explosion or high pressure that may occur unexpectedly, and it is possible to increase the reliability of the anti-inflammatory and low temperature through the above-described anti-inflammatory channel.

1 is a perspective view of a battery module casing in which the device of the present invention is installed.
Figure 2 is an exploded perspective view of the battery module casing in which the exhaust device of the present invention is installed.
3 is a partial sectional perspective view of the battery module casing in which the exhaust device of the present invention is installed.
Fig. 4 is a longitudinal section in the middle of the device of the present invention;
Figure 5 is a cross-sectional view showing a relief valve of the present invention.
Figure 6 is an exemplary cross-sectional view for explaining the operation of the relief valve of the present invention.
7 is a perspective view of a relief valve of another embodiment.
8 is a cross-sectional view of a relief valve of another embodiment;

Next, the present invention will be described in more detail based on the embodiments shown in the drawings.

As shown in FIGS. 1 and 2 , the anti-inflammatory exhaust body 10 of the present invention comes out of the module casing 30 due to a fire occurring inside the module casing 30 forming the exterior of the battery module. It is installed to remove (extinguish) the flame and cool the gas at the same time. And according to the embodiment shown in Figures 1 and 2, it can be seen that the anti-inflammatory exhaust body 10 is installed on both sides of the module casing 30, respectively.

A communication hole 32 for communicating the inside and the outside of the module casing 10 is formed on both sides of the module casing 30 in which a plurality of battery cells are embedded (the surface on which the anti-inflammatory exhaust body is installed). And the anti-inflammatory exhaust body 10 installed on both sides of the module casing 30, respectively, is provided with a plurality of anti-inflammatory channels 14 formed in the longitudinal direction of the module casing 30 (the left and right direction when looking at the center of the drawing) have. As can be seen from the following description, the anti-inflammation channel 14 is advantageous in anti-inflammation if the length is long, so the anti-inflammatory exhaust body 10 is preferably installed in the longitudinal direction of the module casing 30 .

Here, the anti-inflammatory exhaust body 10 may have a different design position based on the capacity of the battery, and ultimately, it can be said that it is sufficient to be installed on the outside of the module casing 30 . And, below, the anti-inflammatory exhaust body 10 installed in the longitudinal direction in the module casing 30, which can be said to be a preferred embodiment, will be described as an example.

As can be seen from the preferred embodiment of the present invention, the plurality of anti-inflammatory channels 14 are substantially formed in the long direction in the anti-inflammatory exhaust body 10, so that the flame from the inside of the module casing 30 is discharged therein. It is configured to self-extinguish due to lack of oxygen in the process of passing through it. This anti-inflammation channel 14 has an inlet at a portion (the front end of the module casing and anti-inflammatory exhaust body) adjacent to the communication hole 32, and has an open state after extending to the rear end of the module casing 30. . Therefore, it can be seen that the inlet of the anti-inflammatory channel 14 is in communication with the inside of the module casing 30, and the outlet of the anti-inflammatory channel 14 is connected to the outside.

The anti-inflammatory channel 14 may be configured in various shapes, and in the embodiment shown in FIGS. 2 to 4 , a plurality of square cross sections formed by a plurality of partitions between the outer surface 12 and the inner surface 11 . It is considered that it is preferable to configure the channel as it is possible to secure a sufficient amount of exhaust gas as a whole. In the illustrated embodiment, such a plurality of anti-inflammatory channels 14 are substantially connected to the communication hole 32 formed in the module casing 30 in an airtight state.

That is, the gas and flame coming out of the communication hole 32 of the module casing 30 do not flow out to other parts, and all should be distributed and discharged into the plurality of anti-inflammatory channels 14 . In order to form a connection path between the flame and the gas, in the embodiment shown in FIG. 2 , a connection hole 16 of the same shape as the communication hole 32 is formed on the inner surface 11 of the anti-inflammatory channel 14 . . Therefore, when the anti-inflammatory exhaust body 10 is coupled to the side surface of the module casing 30 , the above-described connection hole 16 is closely coupled to the communication hole 32 .

And it is obvious that the configuration for closely connecting the communication hole 32 formed in the module casing 30 to the anti-inflammatory channel 14 may not be limited by the above-described embodiment. For example, by using the tip portion 12a of the outer surface 12 of the anti-inflammatory exhaust body 10 to completely cover the communication hole 32 described above and to be in close contact with the side surface, the communication hole 32 exits Of course, it is also possible to allow all of the high-temperature gas to enter the anti-inflammatory channel 14 .

In the present invention, the gas inside the module casing 30 is guided to the inside of the anti-inflammatory channel 14 to achieve anti-inflammatory and cooling. Here, with respect to the configuration for guiding the gas inside the module casing 30 to the anti-inflammatory channel 14, the connection using the connection hole 16 and the communication hole 32 from the top, and the outer surface 12 of the anti-inflammatory exhaust body ( Although the communication connection using 12a) is presented, it cannot be limited by this embodiment. For example, if the communication hole 32 of the module casing 30 and the inlet of the anti-inflammatory panel 14 can be covered in an airtight state with respect to the outside, it is not limited by the shape and structure, and the module casing 30 and the anti-inflammatory It is thought that the connection means for connecting the panels 14 without leaking to the outside will be sufficient.

With the configuration as described above, all flames and gases coming out through the communication hole 32 of the module casing 30 will be able to enter into the plurality of anti-inflammatory channels 14 . When the high-temperature gas and flame generated due to a fire, etc. inside the module casing 30 enter the anti-inflammatory channel 14 of the anti-inflammatory and exhaust body 10, the flame passes through the long anti-inflammatory channel 14 to release oxygen inside. it will all be exhausted. Therefore, the flame entering the anti-inflammation channel 14 is inevitably extinguished while moving at a predetermined interval. In this case, substantially all of the flame passing through the anti-inflammatory channel 14 is removed, and the flame coming out through the outlet is inevitably eliminated.

As described above, in the present invention, it can be seen that the flame coming out through the communication hole 32 of the module casing 30 can be completely removed while passing through the anti-inflammatory channel 14 . As such, as the flame is removed from the inside of the anti-inflammatory channel 14, since the outlet of the anti-inflammatory channel 14 is open, it is natural that the temperature gradually decreases from the inlet to the outlet of the anti-inflammatory channel 14. . That is, the high-temperature gas generated inside the module casing 30 is gradually lowered in temperature while passing through the anti-inflammatory channel 14, so that the gas coming out through the outlet is in a much lower temperature state.

Figure 5 shows an embodiment in which the anti-inflammatory exhaust body (10A) having an anti-inflammatory channel (14A) is installed on the upper portion of the module casing (30). Also in this embodiment, the anti-inflammatory channel (14A), in a state isolated from the outside through the front end (12a) and the front cover (20) of the outer surface (12), through the communication hole (not shown) through the module casing (30) inside configured to communicate with That is, in this embodiment, the front cover 20 covers the entire front of the module casing 30 in an airtight state.

And a plurality of anti-inflammatory channels (14A) formed in the longitudinal direction in the anti-inflammatory exhaust body (10A), the opened front end is located inside the front cover (20). Therefore, even in this embodiment, flames and gases generated due to an explosion inside the module casing 30 are all inevitably introduced into the anti-inflammatory channel 14A. In this embodiment, in the anti-inflammatory exhaust body 10A, the connection means for connecting the inside of the module casing 30 and the anti-inflammatory channel 14A in an airtight state is a front cover ( 20) can be seen.

As described above, in the present invention, all flames and gases generated inside the module casing 30 are guided along the anti-inflammatory channels formed along the longitudinal direction of the anti-inflammatory exhaust body, and anti-inflammation and lowering of the temperature can be said to proceed. Here, in order to connect the anti-inflammatory channel and the inside of the module casing, it is also possible to form a connection hole corresponding to the communication hole of the module casing 30 on the inner surface of the anti-inflammatory exhaust body, and the module casing through a separate member (front cover, etc.) It is also possible to configure the communication hole formed in (30) to be connected to each other with the anti-inflammatory channel.

As described above, the flame and gas generated inside the module casing 30 are discharged through the anti-inflammatory channel of the present invention while the flame is removed and the temperature is lowered. However, when the pressure is rapidly increased due to an explosion or the like inside the module casing 30, there is no choice but to limit the exhaust by the anti-inflammatory panel described above. Next, when the pressure inside the module casing 30 rises sharply, a device for lowering the pressure will be described.

In this case, it is necessary to instantaneously exhaust the rapidly increased pressure to the outside. As such, in preparation for an explosion occurring inside the module casing 30, a device capable of instantaneously emitting gas and flames inside will be described. Even in this case, even if the gas is momentarily released to the outside, it is of course desirable to prevent the flame from going out together.

As shown in FIG. 6 , the front cover 20 installed on the front surface of the module casing 30 is installed to substantially cover the front surface of the module casing 30 in an airtight state. Therefore, a front space (FR) of a certain size is formed between the front cover 20 and the front surface of the module casing 30, and this front space (FR) is in communication with the anti-inflammatory channel 14A and at the same time, not shown. It is also in communication with the inside of the module casing 30 through a hole (communication hole).

Therefore, when flames and gases are generated inside the module casing 30, they are exhausted to the outside through the anti-inflammatory channel 14A, and anti-inflammation and cooling proceed. According to this embodiment, in addition to the above-described anti-inflammatory exhaust body (10A), when a high pressure is generated inside the module casing (30), a relief valve body (Va) for momentarily discharging this high pressure to the outside is provided in the front cover (20) is installed on

The relief valve body Va for momentarily discharging the high-pressure gas in the front space FR on the rear surface of the front cover 20 to the outside is configured to include a valve body 22 having a partial conical shape as shown. . This valve body 22 is molded to open and close the corresponding conical valve hole 24 molded on the front cover 20 . When the valve body 22 and the valve hole 24 are in close contact with each other, the front space becomes an airtight state, and when the valve body 22 is spaced forward from the valve hole 24, the gas inside is passed through the gap therebetween. can leak out.

The valve body 22 and the valve hole 24 both have a conical shape, and form a surface contact corresponding to the thickness thereof. Therefore, as shown in FIG. 6, when the two are spaced apart, a discharge passage (N) having a length corresponding to a distance corresponding to the thickness is formed, and the high-pressure gas inside is discharged to the outside through this discharge passage (N). do. And in the state where the high pressure is not formed in the interior of the front space, the valve body 22 receives a force so as to always be in close contact with the valve hole 24 by the spring 28 .

In the embodiment shown in FIG. 6 , the spring 28 is provided on the support shaft 26 , and is interposed between the head 26a at the tip of the support shaft and the valve body 22 . Accordingly, the spring 28 applies an elastic force to the valve body 22 in the rearward, ie, closing direction. And the support shaft 26 is supported so as to protrude forward by the support 29 fixed to the back surface of the front cover 20 . For example, the support shaft 26 may be supported by screw coupling to the support 29 . Here, it will be easily understood by those skilled in the art that the support 29 covers only a part of the rear surface of the valve body 22 so as to support the support shaft 26 .

In the device of the present invention having the configuration as described above, the flame and gas generated abnormal inside the module casing 30 is the front space (FR) between the module casing 30 and the front cover 20 through a communication hole (not shown). ) comes out. And as described above, the flame is removed and cooled while being exhausted to the outside through the anti-inflammatory channel 14A as described above. Here, if it is assumed that the abnormality generated inside the module casing 30 is, for example, an explosion, a considerable high pressure is generated inside the above-described front space FR.

When the high pressure is generated in this way, it becomes impossible to discharge the gas through the above-described anti-inflammatory channel 14A, and it is preferable to temporarily discharge a sufficient amount of gas to the outside. One or a plurality of relief valve bodies Va installed on the front cover 20 perform such a function. When a high pressure is applied to the front space FR behind the front cover 20, the valve body 22 moves forward while compressing the spring 28 by the force of this pressure.

This movement of the valve body 22, as shown in FIG. 6, forms a discharge passage (N) between the valve body 22 and the valve hole (24). Therefore, the high-pressure gas inside the front space (FR) is discharged to the outside through this discharge passage (N). Here, since the support shaft 26 is disposed at the axial center of the valve body 22 , the valve body 22 moving forward is guided by the support shaft 26 while discharging having substantially the same spacing on the entire outer circumferential surface. A passage (N) is formed. In this way, once the high-pressure gas is discharged, the gas remaining in the front space FR behind the front cover 20 is relatively low, so that an overall explosion will not occur.

Here, the velocity of the gas exhausted to the outside through the discharge passage (N) has a very important meaning. For example, if a flame is included in the high-pressure gas component hung in the above-described front space (FR), it is natural that such a flame leaks out through the discharge passage (N) to the outside. Therefore, it is not preferable that the flame existing in the front space (FR) of the rear surface of the front cover 20 is discharged like the gas exiting through the discharge passage (N).

In general, the flame propagation rate for a given gas is known. If the speed of the gas passing through the above-described discharge passage (N) is formed faster than this flame propagation speed, the flame does not flow out to the outside. Here, the velocity of the gas passing through the discharge passage (N) is In inverse proportion to the cross-sectional area of the passage, the narrower the cross-sectional area of the discharge passage (N), the faster the gas discharge rate. And the cross-sectional area of the discharge passage (N) increases in proportion to the distance the valve body 20 is spaced apart from the through hole (24).

Here, the moving distance of the valve body 20 is related to the force of the spring, that is, the spring constant. Assuming that the pressure of the front space (FR) inside the front cover 20 is the same, it can be seen that the cross-sectional area of the discharge passage (N) is determined by the spring constant. As described above, the speed of the high-pressure gas discharged to the outside through the discharge passage N should be set to be faster than the flame propagation speed of the corresponding gas, so that the spring 28 has a spring constant in this range. it should be chosen

For example, the pressure of the front space (FR) is substantially the same as the pressure of the module casing, and since there is a risk of explosion, etc. when a pressure greater than a predetermined pressure is applied, the valve body must form a discharge passage (N) while moving by this high pressure. do. At this time, the cross-sectional area of the discharge passage (N), the speed of the gas flowing through the discharge passage should be set faster than the flame propagation speed of the corresponding gas. Therefore, in the present invention, the spring constant of the spring 28 pressing the valve body 22 in the closing direction is determined by the cross-sectional area of the discharge passage N formed by the valve body 22 and the velocity of the gas flowing therein. It should be set to flow faster than the flame propagation speed.

And during the moment when the valve body 22 is opened, after the high-pressure gas in the module casing 30 and the front space FR is discharged to the outside, the valve body 22 is closed by the elastic restoring force of the spring 28. It is in close contact with the inner surface of the ball 24 to close the front cover 20 again. In this way, accidents such as explosion of the battery module can be prevented in advance by momentarily ejecting the high-pressure gas inside. Furthermore, by setting the spring constant so that the cross-sectional area of the discharge passage (N), the speed of the gas passing therebetween can be maintained faster than the flame propagation speed, it is possible to prevent the outflow of the flame.

Next, another embodiment of the relief valve body 20A shown in FIGS. 7 and 8 will be described. Hereinafter, in the description of the present embodiment, descriptions of parts overlapping with those described above will be omitted or simplified. In contrast to the above-described embodiment in which the passage N is formed between the valve body 22 and the valve hole 24 of the front cover 30, the relief valve body 20A of this embodiment has its own gas. It can be said that it is provided with a discharge passage that is ejected to the outside.

The relief valve body 20A of this embodiment includes a valve body 22A blocking the discharge passage by a spring 28A and a support tube 23A directly mounted on the front cover 30 (see FIG. 3), and have. The configuration of the valve body 22 can be said to be substantially equivalent to that described above, and the configuration of the valve hole 24A of the support cylinder 23A is also the same. And a discharge passage (N) (refer to FIG. 3) is formed between the support cylinder (23A) and the valve body (22A). The support cylinder 23A is coupled to a screw hole (not shown) of the front cover 30 through a screw portion 23Aa formed at the rear end. Here, the valve body 22A (outer surface of the valve body) and the valve hole 24A of this embodiment also have a partial cylindrical shape, and have the same shape as the above-described embodiment.

Therefore, in the state in which the discharge passage N as shown in FIG. 3 is not formed between the support tube 23A (the discharge hole 24A formed inside the support tube 23A) and the valve body 23A, The inside of the module casing 40 is sealed with respect to the outside. That is, the relief valve body 20A of this embodiment can be said to have a discharge passage by itself, and is mounted on one surface (for example, a front cover) of the module casing 40 .

Here, when the valve body 22A is in close contact with the valve hole 24A, the module casing 40 is in an airtight state, and when the valve body 22A is spaced forward from the valve hole 24A, the valve body 22A and the valve It is also the same as the above-described embodiment that the gas inside can be discharged to the outside through the discharge passage (refer to FIG. 3) formed between the balls (24A). Also in this embodiment, the spring 28A is supported by the support shaft 26A, and is interposed between the head 26Aa at the tip of the support shaft and the valve body 22A. Accordingly, the spring 28A is pushing the valve body 22A backward (in the closing direction).

Also, the support shaft 26A is supported so as to protrude forward by the support 29A fixed to the back surface of the front cover 30 as described above, and the configuration of the support shaft and the support shaft is also the same as in the above-described embodiment. The operation of the present embodiment having such a configuration is also substantially the same as that of the above-described embodiment. That is, when the internal pressure of the module casing 30 is abnormally high, this pressure pushes the valve body 22A to the outside, and a discharge passage is formed between the valve body 22A and the valve hole 24A.

In the present invention described above, the anti-inflammatory exhaust body having the anti-inflammatory channel is thought to be possible to install anywhere on the outer surface of the module casing. And the relief valve body (Va) has been described through an example of being installed on the front cover 20 installed on the front side of the module casing 30, the relief valve body (Va) is installed on the outer surface of the module casing (30) Even so, I think it is quite possible. In addition, it goes without saying that the anti-inflammatory panel formed on the anti-inflammatory exhaust body cannot be limited by its cross-sectional shape or path, and the flame can be extinguished due to lack of oxygen in it, and the high-temperature gas can be cooled while passing through it. I think that would be enough.

Consider a modification of the embodiment for the relief valve body. In the above-mentioned embodiment, the conical valve body and the valve hole should be interpreted to mean a hole for discharging gas and a hole for closing the hole, respectively. And as one of the preferred embodiments for this configuration, it is holding a conical valve body and a valve ball. Therefore, the present invention will be able to make various changes within the technical scope of the valve ball for discharging the gas to the outside, and the valve body blocking the valve ball with the elastic force of the spring.

As described above, the present invention has a basic technical idea to solve the instantaneous high pressure through a relief valve, such as to achieve anti-inflammatory and cooling of the exhaust gas by discharging the gas through the above-described anti-inflammatory channel. can be found It goes without saying that various modifications are possible for those skilled in the art within the scope of the technical spirit of the present invention as described above. And it is also considered natural for the purpose of the provisions of the Patent Act that the protection scope of the present invention should be interpreted based on what is described in the claims.

10 ..... Anti-inflammatory exhaust body
11 ..... inside
12 ..... outward
12a ..... the tip
16 ..... connector
20 ..... Front cover
22 ..... valve body
24 ..... valve ball
26 ..... support shaft
26a ..... head
29 ..... support
30 ..... module casing
32 ..... pipe hole
FR ..... front space
N ..... exhaust passage

Claims (11)

a module casing in which a communication hole is formed through which flames and gases generated from the inside come out;
an anti-inflammatory exhaust body mounted on one surface of the module casing, and having a plurality of anti-inflammatory channels that are extinguished and cooled while the flame and gas coming out through the communication hole pass through the inside; and
A battery anti-inflammatory exhaust device for an electric vehicle comprising a connection means for guiding the flame and gas exiting the communication hole to the anti-inflammatory channel without external leakage.
According to claim 1, wherein the anti-inflammatory channel is composed of a plurality of molded between the inner surface and the outer surface of the anti-inflammatory exhaust body, the connection means is composed of a connection hole formed on the inner surface of the anti-inflammatory exhaust body to correspond to the communication hole battery anti-inflammation of the electric vehicle exhaust device.
The electric vehicle according to claim 1, wherein the anti-inflammation channel is formed in plurality between the inner and outer surfaces of the small air exhaust body, and the connecting means extends the outer surface of the anti-inflammatory and exhaust body to surround the communication hole and closely adhere to the module casing. of the battery anti-inflammatory and exhaust system.
According to claim 1, wherein the connecting means is configured to include a front cover that forms a front space while enclosing the front of the module casing, the entrance of the anti-inflammatory channel is located in the front space inside the front cover battery anti-inflammatory exhaust device for an electric vehicle .
[4] The spring according to any one of claims 1 to 3, wherein the cover is installed to surround a part of the module casing to form a certain space between the module casing and a valve hole for discharging high-pressure gas; Battery anti-inflammation and exhaust device for electric vehicle comprising a relief valve body that is elastically supported in a direction to block the valve ball by .
[Claim 5] The valve body according to claim 4, wherein the conical valve body is closely attached to the valve hole formed on the front cover to block the discharge passage or is spaced apart from the valve hole to form the discharge passage, and an elastic member for attaching the valve body to the valve hole. It is configured to further include a relief valve body that Battery anti-inflammatory and exhaust system for electric vehicles
The method according to claim 5, wherein the valve body has a partial conical shape, the valve hole has a corresponding conical shape that is closed or opened by the valve body, and a discharge passage having a certain length is formed between the valve body and the valve hole. Battery anti-inflammatory and exhaust system for electric vehicles.
7. The method according to claim 6, wherein the valve body has a partial conical shape, the valve hole has a corresponding conical shape that is closed or opened by the valve body, and a discharge passage having a predetermined length is formed between the valve body and the valve hole. Battery anti-inflammatory and exhaust system for electric vehicles.
The battery of claim 5, wherein the valve body is guided by a support shaft supported by the front cover at the center of the shaft, so that the discharge passage between the valve body and the valve hole is spaced at a constant distance from the entire outer surface of the valve body. anti-inflammatory device.
The battery of claim 6, wherein the valve body is guided by a support shaft supported by the front cover at the center of the shaft, so that the discharge passage between the valve body and the valve hole is spaced at a constant distance from the entire outer surface of the valve body. anti-inflammatory device.
4. The method according to any one of claims 1 to 3,
a support passage installed on one surface of the module casing and having a discharge hole for discharging the high-pressure gas generated therein;
It is elastically supported in a direction to block the valve ball by a spring, and further comprises a relief valve comprising a valve body that opens the valve ball against the spring when a high pressure generated inside the module casing acts;
The valve body has a partial cone shape, and the valve hole has a corresponding cone shape blocked or opened by the valve body.

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