Battery pack and device including the same

Abstract

The invention relates to a battery pack and an apparatus including the same. A battery pack according to an embodiment of the present invention comprises: a plurality of battery modules; a flow path frame disposed along an edge of at least some of the plurality of battery modules and forming an internal passage; and a blowing member communicating with one end of an internal passage of the flow path frame and controlling a gas discharge rate within the internal passage.

Description

Technical Field

[0001] This application claims priority to Korean Patent Application No. 10-2022-0087178, filed on Jul. 14, 2022, which is hereby incorporated by reference in its entirety.

[0002] The present invention relates to a battery pack and a device including the same, and more particularly, to a battery pack capable of smoothly discharging high-temperature gas and a device including the same. Background Art

[0003] In recent years, with the rapid increase in demand for portable electronic products such as laptop computers, camcorders, and mobile phones, and the regularization of the development of electric vehicles, energy storage batteries, robots, satellites, etc., a lot of research has been conducted on secondary batteries used as driving power sources.

[0004] As demand for a structure of a large-capacity secondary battery increases, demand for a battery pack having a multi-module structure in which a battery module in which a plurality of secondary batteries are connected to each other is assembled is increasing.

[0005] When the battery cells provided in the battery pack are ignited, high temperature gas and flames may be generated. If the high temperature gas and flames are not smoothly discharged, the pressure inside the battery pack may increase, and thus the battery pack structure may collapse. Summary of the invention

[0006] Technical issues

[0007] An embodiment of the present invention is to provide a battery pack capable of smoothly discharging gas generated therein and a device including the battery pack.

[0008] The objects of the present invention are not limited thereto, and those skilled in the art will clearly understand other objects not described herein from the following description.

[0009] Technical Solution

[0010] A battery pack according to an embodiment of the present invention may include: a plurality of battery modules; a channel frame, which is arranged along the edges of at least a portion of the plurality of battery modules to define an internal channel; and a blowing member, which is connected to one end of the internal channel of the channel frame to control the gas discharge rate within the internal channel.

[0011] According to an embodiment, the battery pack may further include an outlet communicating with the other end of the internal channel.

[0012] According to an embodiment, the battery pack may further include: a battery pack shell, which is configured to accommodate the battery module and the channel frame; a storage tank, which is arranged at least one of the inside or the outside of the battery pack shell; and a fluid supply pipe, which is arranged between the storage tank and the channel frame, wherein the fluid stored in the storage tank is supplied to the internal channel of the channel frame through the fluid supply pipe.

[0013] According to an embodiment, the fluid may be at least one of a liquid including water or a gas including nitrogen.

[0014] According to an embodiment, the blowing member may operate when the pressure of the internal passage is a first pressure, and after the blowing member operates, the storage tank may operate when the pressure of the internal passage is the first pressure or a second pressure higher than the first pressure.

[0015] According to an embodiment, the storage tank may be configured to discharge the fluid at a third pressure higher than the second pressure.

[0016] According to an embodiment, the fluid supply pipe may branch from the fluid frame.

[0017] According to an embodiment, the storage tank may be provided in plurality, one of the plurality of storage tanks may be configured to store gas for discharging foreign matter injected into the internal channel, and other storage tanks among the plurality of storage tanks may be configured to store liquid for discharging foreign matter injected into the internal channel.

[0018] According to an embodiment, the channel frame may include: a first channel frame disposed along an edge of one side of the plurality of battery modules; and a second channel frame disposed along an edge of the other side of the plurality of battery modules.

[0019] According to an embodiment, the blowing member may include a rotary fan.

[0020] A device according to an embodiment of the present invention may include the above-mentioned battery pack.

[0021] Beneficial Effects

[0022] According to an embodiment of the present invention, gas generated in a battery pack may be smoothly discharged through a blowing member provided inside the battery pack to suppress generation of flame and increase in pressure inside the battery pack.

[0023] According to an embodiment of the present invention, foreign matter accumulated inside a battery pack may be discharged to the outside by a fluid injected into the battery pack to manage the pressure inside the battery pack to a certain level.

[0024] According to an embodiment of the present invention, when an abnormality occurs in a battery cell, the stability of the battery pack may be improved by at least one of a blowing member provided inside the battery pack or a fluid injected into the battery pack.

[0025] Furthermore, various effects directly or indirectly recognized by the present disclosure can be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a perspective view of a battery pack according to a first embodiment of the present invention.

[0027] Figure 2 yes Figure 1 An exploded perspective view of a battery module is shown.

[0028] Figure 3 It is used for specific description Figure 1 A cross-sectional view of the channel frame is shown.

[0029] Figure 4a and Figure 4b is a view for explaining a method for discharging gas in a battery pack according to an embodiment of the present invention, which uses Figure 3 Channel framework shown.

[0030] Figure 5 is a cross-sectional view showing a part of a battery pack according to a second embodiment of the present invention.

[0031] Figure 6a and Figure 6b is a view for explaining a method for discharging gas in a battery pack according to another embodiment of the present invention, which uses Figure 5 Channel framework shown. DETAILED DESCRIPTION

[0032] Hereinafter, the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily perform the present invention. However, the present invention can be implemented in several different forms and is not limited or constrained by the following embodiments.

[0033] In order to explain the present invention clearly, detailed description of parts that are not related to the description of the main points of the present invention or the related known technology that may unnecessarily obscure the details of the present invention has been omitted, and in this specification, reference numerals are added to the components in each accompanying drawing. In this case, the same or similar reference numerals are assigned to the same or similar elements throughout the specification.

[0034] Furthermore, the terms or words used in the present specification and claims should not be restrictively interpreted as ordinary meanings or dictionary-based meanings, but should be interpreted as meanings and concepts consistent with the scope of the present invention based on the principle that the inventor can appropriately define the concepts of the terms in order to best describe and explain his or her invention.

[0035] First embodiment

[0036] Figure 1 is a perspective view of a battery pack according to a first embodiment of the present invention, and Figure 2 yes Figure 1 An exploded perspective view of a battery module is shown.

[0037] Reference Figure 1 , the battery pack 101 according to the first embodiment of the present invention may include a pack case 400 , a plurality of battery modules 100 accommodated in the pack case 400 , and a channel frame 300 .

[0038] like Figure 2 As shown, each of the plurality of battery modules 100 may include a battery cell stack 102 in which a plurality of battery cells 103 are stacked, a module frame 110 accommodating the battery cell stack 102 , and an end plate 120 .

[0039] A plurality of battery cells 103 may be stacked to be electrically connected to each other, thereby providing a battery cell stack 102. For example, a plurality of battery cells 103 may be stacked in a direction parallel to the y-axis, such as Figure 2 shown.

[0040] The module frame 110 accommodating the battery cell stack 102 may include an upper plate 112 and a lower frame 111. The lower frame 111 may be a U-shaped frame. The U-shaped lower frame 111 may include a bottom and two side portions extending from both ends of the bottom in the z-axis direction, respectively. The bottom may cover the bottom surface of the battery cell stack 102 (in the direction opposite to the z-axis), and the side portions may cover the two side surfaces of the battery cell stack 102 (in the y-axis direction and in the direction opposite to the y-axis direction).

[0041] The upper plate 112 may be provided as a single plate-like structure that surrounds the top surface (z-axis direction) except for the bottom surface and two side surfaces surrounded by the lower frame 111. The upper plate 112 and the lower frame 111 may provide a structure coupled by welding to cover the battery cell stack 102 in the vertical direction and in the left-right direction in a state of contacting the edge portions corresponding to each other. The battery cell stack 102 may be physically protected by the upper plate 112 and the lower frame 111. Each of the upper plate 112 and the lower frame 111 may include a metal material having a predetermined strength.

[0042] The end plate 120 may cover the battery cell stack 102 exposed to both ends of the module frame 110. An exhaust door 121 may be provided in at least one of the two end plates 120. The exhaust door 121 may be communicated with the interior of the battery module 100 to release flames or heat generated inside the battery module 100. The exhaust door 121 may be connected to an opening (not shown) defined in a portion of the end plate 120 to communicate with the interior of the battery module 100. The exhaust door 121 may be provided to face the outside of the battery pack 101.

[0043] A plurality of battery modules 100 may be arranged in rows or in a matrix. For example, some of the plurality of battery modules 100 arranged in a matrix may be arranged in a first row parallel to the y-axis direction, and some of the remaining battery modules 100 may be arranged in a second row parallel to the first row. The plurality of battery modules 100 arranged in the first row and the plurality of battery modules 100 arranged in the second row may be arranged symmetrically with respect to the y-axis direction. The exhaust valve 121 of each of the plurality of battery modules 100 arranged in the first row may be arranged in a direction opposite to the x-axis direction. The exhaust valve 121 of each of the plurality of battery modules 100 arranged in the second row may be arranged in the x-axis direction.

[0044] The channel frame 300 may be arranged along the edge of at least a portion of the plurality of battery modules 100. The channel frame 300 may be arranged along at least one of the plurality of side surfaces of the lower housing 410. The channel frame 300 may be arranged between the lower housing 410 and the battery module 100 in a tubular shape. At least one channel frame 300 may be arranged between the lower housing 410 and the battery module 100. For example, when the plurality of battery modules 100 arranged in a matrix form are arranged in two rows, the channel frame 300 may include a first channel frame 310 and a second channel frame 320 arranged side by side. The first channel frame 310 may be arranged to extend along the end plates 120 of the plurality of battery modules 100 arranged in the first row. The second channel frame 320 may be arranged to extend along the end plates 120 of the plurality of battery modules 100 arranged in the second row. The internal channels of the first channel frame 310 and the internal channels of the second channel frame 320 may be arranged to communicate with each other, or may be arranged to be spaced apart from each other.

[0045] The battery pack case 400 may include a lower case 410 and an upper cover 420 .

[0046] The upper cover 420 may be coupled to the lower case 410 to cover an upper portion of the battery module 100 , thereby protecting the entire length of the inside of the battery pack case 400 .

[0047] The lower housing 410 may include a bottom surface and a side wall extending from an edge of the bottom surface in the z-axis direction. The battery pack tray 200 may be placed on the bottom surface. The battery module 100, the channel frame 300, the blowing member 500 and the battery pack tray 200 may be accommodated in the lower housing 410. A plurality of battery modules 100, the channel frame 300 and the blowing member 500 may be disposed on the battery pack tray 200. A plurality of battery modules 100 and the channel frame 300 may be fixed to the battery pack tray 200 as needed.

[0048] The blowing member 500 may discharge air into the inner channel of the channel frame 300 through the outlet 300. The blowing member 500 may be a blowing fan (or a rotary fan) having a plurality of blades installed to rotate about an axis, or may be a blowing member without blades.

[0049] When at least one of the gas flow rate, gas volume, and pressure in the channel frame 300 reaches a certain level (reference value), the blowing member 500 may operate. Due to the operation (or rotation) of the blowing member 500, the gas in the channel frame 300 may be discharged to the outside at a rate exceeding the performance of the exhaust member to suppress the increase in temperature and pressure inside the battery pack 101. The exhaust member may include at least one of the exhaust door 121, the outlet 430, the exhaust valve, or the rupture disk.

[0050] The outlet 430 may be provided at one side wall of the lower housing 410 to discharge heat or flame generated inside to the outside. At least one of an exhaust valve or a rupture disk provided in the exhaust member may be provided around the outlet 430. The rupture disk may be connected to the channel frame 300. When the pressure of the gas flowing into the internal channel of the channel frame 300 exceeds a certain pressure, the rupture disk may be provided to rupture.

[0051] Various control and protection systems (such as a battery management system (BMS) and a cooling system) can be installed inside the battery pack housing 400 including the lower housing 410 and the upper cover 420 together with the battery module 100. The battery management system can monitor at least one of the pressure, temperature or gas of at least one of the battery module 100 or the channel frame 300. The battery management system can control whether the blowing member 500 works by comparing the monitored measurement value with a preset reference value. When the monitored measurement value reaches the preset reference value, the battery management system can control the blowing member 500 to work. When the monitored measurement value is less than the preset reference value, the battery management system can control the blowing member 500 not to work.

[0052] As an example, the battery management system may compare the measured pressure with a preset reference pressure, and may control the blowing member 500 to work when the measured pressure reaches the reference pressure. As another example, the battery management system may compare the measured gas amount with a preset reference gas amount, and may control the blowing member 500 to work when the measured gas amount reaches the reference gas amount. As another example, when at least two of the measured values ​​of pressure, temperature, and gas reach a preset reference value, the battery management system may control the blowing member 500 to work.

[0053] Figure 3 It is used for specific description Figure 1 A cross-sectional view of the channel frame is shown. Figure 3 Two channel frames are shown in the figure, but it is not limited thereto, and their positions and numbers can be appropriately selected as needed.

[0054] Reference Figure 3 , the channel frame 300 according to the first embodiment of the present invention may be in communication with the exhaust valve 121 and the outlet 430 of the battery module 100. When thermal runaway occurs from the battery module 100, the channel frame 300 may minimize the impact on the surrounding battery modules by directing heat and flames to the outside. Here, the flame contained in the generated high-pressure exhaust may burn while passing through the internal channel of the channel frame 300, and then be discharged to the outside in a safer state. In addition, the channel frame 300 may be used as a supporting frame that stably supports the battery module 100 to improve the stability of the battery pack 101.

[0055] As described above, the channel frame 300 may include a first channel frame 310 and a second channel frame 320. The first channel frame 310 may communicate with the exhaust gate 121 of each of the plurality of battery modules 100 disposed in a first row among the plurality of battery modules 100. The second channel frame 320 may communicate with the exhaust gate 121 of each of the plurality of battery modules 100 disposed in a second row among the plurality of battery modules 100.

[0056] The blowing member 500 may be disposed at least one side (e.g., one side in the opposite direction of the y-axis) of the first channel frame 310 and the second channel frame 320. The outlet 430 may be disposed at at least one other side (e.g., one side in the y-axis direction) of the first channel frame 310 and the second channel frame 320.

[0057] The blowing member 500 may be disposed in the inner channel of each of the first channel frame 310 and the second channel frame 320, or may be disposed between each of the first channel frame 310 and the second channel frame 320 and the battery pack housing 410. The blowing member 500 may be disposed adjacent to the battery module 100 farthest from the exhaust member among the plurality of battery modules 100. The blowing member 500 may forcibly discharge air from the inner channel of the channel frame 300 to the outside through the exhaust member. Since the blowing member 500 rotates with the rotation of the motor 510, the air flow within the first channel frame 310 and the second channel frame 320 may be accelerated. As the blowing member 500 rotates, the gas in the first channel frame 310 and the second channel frame 320 may move toward the outlet 430, and then may be discharged to the outside of the battery pack 101.

[0058] Figure 4a and Figure 4b is a view for explaining a method for discharging gas in a battery pack according to an embodiment of the present invention, which uses Figure 3 Channel framework shown.

[0059] like Figure 4a As shown, problems such as overvoltage, overcurrent or overheating (or thermal problems) may occur in at least one battery module 100 among the plurality of battery modules 100. In this case, the high-pressure exhaust gas can be discharged from the inside of the battery module 100 through the exhaust valve 121. The high-temperature and high-pressure gas and flame discharged through the exhaust valve 121 can be introduced into the internal channel of the first channel frame 310 and the second channel frame 320. The introduced high-temperature and high-pressure gas and flame can be discharged to the outside through an exhaust member including at least one of the outlet 300, the rupture disk or the exhaust valve. The gas introduced into the internal channel of the fluid frames 310 and 320 can be discharged at a first rate.

[0060] Here, the battery management system may monitor at least one of the temperature, pressure, gas volume, or gas flow rate inside the fluid frames 310 and 320 in real time or periodically. When at least one of the temperature, pressure, gas volume, or gas flow rate inside the first channel frame 310 and the second channel frame 320 reaches a reference value, the battery management system may control the blowing member 500 to work. The blowing member 500 may be rotated by the power supplied to the motor 510. Figure 4b As shown, due to the rotational movement of the blowing member 500, the high-pressure gas and flame in the internal channel of the channel frame 300 can be forcibly discharged to the outside through the outlet 430. The blowing member 500 can discharge the high-pressure gas and flame from the internal channel of the channel frame 300 to the outside at a second rate. The second rate can be higher than the first rate (performance of the exhaust member) at which the high-pressure gas and flame in the internal channel of the channel frame 300 are discharged to the outside through the exhaust member including the outlet 300. Therefore, the increase in temperature and pressure inside the battery pack 101 can be suppressed to prevent the battery pack 101 from structural deformation and collapse.

[0061] Second embodiment

[0062] Figure 5 1 is a cross-sectional view showing a portion of a battery pack according to a second embodiment of the present invention. In addition to including a storage tank 700 and a fluid supply pipe 600, Figure 5 The battery pack shown may have Figure 1 and Figure 3 Therefore, it is obvious that the detailed description of the same components is regarded as the content of the battery pack of the first embodiment.

[0063] Reference Figure 5 , the battery pack 501 according to the second embodiment of the present invention may include a storage tank 700 and a fluid supply pipe 600 .

[0064] The fluid supply pipe 600 may be provided to branch from the channel frame 300. The blowing member 500 provided within the channel frame 300 may not hinder the flow of the fluid injected through the storage tank 700.

[0065] One end of the fluid supply pipe 600 may be coupled to the storage tank 700 provided at least one of the inside and the outside of the pack case 400. The other end of the fluid supply pipe 600 may communicate with the inner channel of the channel frame 300.

[0066] The storage tank 700 may store a fluid that can be injected into the internal channel of the channel frame 300. The fluid may be periodically filled and stored in the storage tank 700. The storage tank 700 may store at least one of a gas for discharging foreign matter or a liquid for discharging foreign matter. For example, the gas for discharging foreign matter may contain nitrogen, and the liquid for discharging foreign matter may contain water.

[0067] The storage tank 700 may include multiple storage tanks storing different fluids or the same fluid. For example, the storage tank 700 may include a first storage tank storing nitrogen-containing gas and a second storage tank storing water-containing liquid. The fluid may be supplied to the inside of the fluid supply pipe 600 and the channel frame 300 in the order of the first storage tank and the second storage tank or in the reverse order. A pump (not shown) connected to the storage tank 700 may pump the fluid in the storage tank 700 so that the fluid stored in the storage tank 700 is injected into the fluid supply pipe 600.

[0068] The storage tank 700 may inject the fluid into the fluid supply pipe 600 and the channel frame 300 toward the outlet 430 at high pressure to remove foreign matter accumulated inside the channel frame 300 and the outlet 430. The foreign matter may be generated by being carbonized when the battery cell 103 is ignited, or may be generated by melting at least one of the exhaust member or the blowing member 500 including the outlet 430. Therefore, the foreign matter may be smoothly discharged to the outside of the battery pack 101 by the fluid injected at high pressure.

[0069] As an example, when the temperature and pressure inside the channel frame 300 increase in the case where the blowing member 500 works, the fluid may be injected into the channel frame 300 through the fluid supply pipe 600. Regardless of the operation of the blowing member 500, when at least one of the temperature or pressure of the internal channel of the channel frame 300 reaches a preset reference value, the storage tank 700 may inject the fluid into the channel frame 300. Specifically, the amount of gas generated from at least one of the plurality of battery modules 100 may be greater than the amount of gas discharged to the outside due to the operation of the blowing member 500. In this case, the temperature and pressure inside each of the channel frame 300 and the battery module 100 may increase. When a flame is generated and propagated due to the increase in temperature and pressure, foreign matter generated by carbonization or melting of the structure inside the battery pack may accumulate in the internal channel of the channel frame 300 and the outlet 430. The foreign matter may block the internal channel and the outlet 430 of the channel frame 300 to reduce the amount of gas discharged through the channel frame 300, thereby accelerating the increase in pressure and temperature inside the battery pack 101. Therefore, the fluid injected under high pressure from the storage tank 700 may discharge foreign matter accumulated in the inner channel of the channel frame 300 and the outlet 430 to the outside of the battery pack 101 .

[0070] As another example, when the temperature and pressure inside the channel frame 300 are lower than the reference value after the work of the blowing member 500 is completed, the storage tank 700 may inject the fluid into the channel frame 300 through the fluid supply pipe 600. Therefore, foreign matter accumulated inside the channel frame 300 and at the outlet 430 may be smoothly discharged to the outside of the battery pack 101, and thus, the inside of the battery pack 101 may be maintained at a certain pressure level.

[0071] As another example, in the case where the blowing member 500 is not operating, after the gas is discharged through the exhaust valve 121, the channel frame, and the outlet, the storage tank 700 may inject the fluid into the channel frame 300 through the fluid supply pipe 600. Therefore, foreign matter accumulated inside the channel frame 300 and at the outlet 430 may be smoothly discharged to the outside of the battery pack 101, and thus, the inside of the battery pack 101 may be maintained at a certain pressure level.

[0072] Figure 6a and Figure 6b is a view for explaining a method for discharging gas in a battery pack according to another embodiment of the present invention, which uses Figure 5 Channel framework shown.

[0073] like Figure 6a As shown, problems such as overvoltage, overcurrent, or overheating (thermal problems) may occur in at least one battery module 100 among the plurality of battery modules 100. In this case, the exhaust gas from the inside of the battery module 100 may be discharged through the exhaust valve 121. The high-temperature and high-pressure exhaust gas and flame discharged through the exhaust valve 121 may be introduced into the inside of the first channel frame 310 and the second channel frame 320. The introduced high-temperature and high-pressure exhaust gas and flame may be discharged to the outside at a first rate through the exhaust member including the outlet 300.

[0074] Here, the battery management system may monitor at least one of the temperature, pressure, gas volume or gas flow rate inside the fluid frames 310 and 320 in real time or periodically. When at least one of the temperature, pressure, gas volume or gas flow rate inside the fluid frames 310 and 320 reaches a reference value, the battery management system may control the blowing member 500 to work. For example, when the pressure in the internal channel of each of the first channel frame 310 and the second channel frame 320 increases and reaches the first pressure, the battery management system may control the blowing member 500 to work. The blowing member 500 may be rotated by the power supplied to the motor 510. Due to the rotational movement of the blowing member 500, the high-pressure gas and flame inside the channel frame 300 may be forcibly discharged to the outside through the outlet 430. The blowing member 500 may discharge the high-pressure exhaust gas and flame inside the channel frame 300 to the outside at a second rate. The second rate may be higher than the first rate (or the performance of the exhaust member) at which the high-pressure exhaust gas and flame inside the channel frame 300 are discharged to the outside through the exhaust member.

[0075] Regardless of the operation of the blowing member 500, when at least one of the temperature, pressure, gas volume or flow rate of the internal channels of the fluid frames 310 and 320 reaches a reference value, such as Figure 6b As shown, the storage tank 700 can inject the fluid into the channel frame 300. For example, when the pressure of the internal channels of the first channel frame 310 and the second channel frame 320 is the first pressure or reaches a second pressure higher than the first pressure, the storage tank 700 can inject the fluid into the channel frame 300. The storage tank 700 can inject the fluid at a third pressure higher than the second pressure.

[0076] The fluid injected by the storage tank 700 at a high pressure (eg, the third pressure) can discharge foreign matter accumulated in the internal channel of the channel frame 300 and the outlet 430 to the outside of the battery pack 101. Therefore, the inside of the battery pack 101 can be maintained at a certain temperature and pressure level.

[0077] The structure of the battery pack 101 is not limited to the embodiments described in each figure, and the structures described in each figure can be applied in combination. Figure 3 , Figure 4a and Figure 4b The plurality of blowing components 500 described in Figure 5 , Figure 6a and Figure 6b The plurality of storage tanks 700 and the fluid supply pipe 600 described in the embodiment of the present invention are used without the blowing member 500, or the plurality of storage tanks 700 and the fluid supply pipe 600 are used as described in the embodiment of the present invention. Figure 5 , Figure 6a and Figure 6b The combination of the blowing member 500, the storage tank 700 and the fluid supply pipe 600 described in FIG.

[0078] In addition, the above-mentioned battery pack 101 can be applied to various devices. It can be applied to transportation tools such as electric bicycles, electric vehicles, hybrid vehicles, etc., but is not limited thereto, and can be applied to all various devices that can use the battery pack 101.

[0079] While embodiments of the present invention have been described with reference to specific embodiments, it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

[0080] [Description of Reference Signs]

[0081] 101: Battery Pack

[0082] 100: Battery module

[0083] 120: End plate

[0084] 121: Exhaust valve

[0085] 430: Exit

[0086] 500: Blowing component

[0087] 510: Motor

[0088] 300, 310, 320: Channel frame

[0089] 600: Fluid supply pipe

[0090] 700: Storage tank

Claims

1. A battery pack, comprising: Multiple battery modules; a channel frame disposed along an edge of at least a portion of the plurality of battery modules to define an internal channel; as well as A blowing member is communicated with one end of the inner channel of the channel frame to control a gas exhaust rate in the inner channel. 2 . The battery pack according to claim 1 , further comprising an outlet communicating with the other end of the internal channel.

3. The battery pack according to claim 1, further comprising: a battery pack housing configured to accommodate the battery module and the channel frame; a storage tank disposed at least one of an interior or an exterior of the battery pack housing; as well as a fluid supply pipe, the fluid supply pipe being arranged between the storage tank and the channel frame, Wherein, the fluid stored in the storage tank is supplied to the internal channel of the channel frame through the fluid supply pipe.

4. The battery pack according to claim 3, wherein: The fluid is at least one of a liquid including water or a gas including nitrogen.

5. The battery pack according to claim 3, wherein: When the pressure of the inner passage is the first pressure, the blowing member is operated, and After the blowing member is operated, when the pressure of the inner passage is the first pressure or a second pressure higher than the first pressure, the storage tank is operated.

6. The battery pack according to claim 5, wherein: The storage tank is configured to discharge the fluid at a third pressure that is higher than the second pressure.

7. The battery pack according to claim 3, wherein: The fluid supply pipe branches from the fluid frame.

8. The battery pack according to claim 3, wherein: The storage tank is configured as a plurality of storage tanks, One of the plurality of storage tanks is configured to store gas for discharging foreign matter injected into the internal passage, and The other storage tanks of the plurality of storage tanks are configured to store liquid for discharging foreign matter injected into the internal passage.

9. The battery pack according to claim 1, wherein: The channel framework includes: a first channel frame disposed along an edge of one side of the plurality of battery modules; and A second channel frame is provided along an edge of another side of the plurality of battery modules.

10. The battery pack according to claim 1, wherein: The blowing member includes a rotating fan.

11. A device comprising the battery pack according to claim 1.

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