Battery pack and vehicle device including same

Abstract

A battery pack according to one embodiment of the present invention includes a plurality of battery cells; a pack frame to which the battery cells are directly attached or to which the battery cells are attached while being housed in a module frame; a pack cover that covers the pack frame; and one or more frame members that are attached to the pack cover and that contain cooling water or fire extinguishing water.

Description

[Technical Field]

[0001] [CROSS-REFERENCE TO RELATED APPLICATIONS] This application claims the benefit of priority based on Korean Patent Application No. 10-2024-0011561, filed January 25, 2024, and all contents disclosed in the documents of this Korean patent application are incorporated herein by reference.

[0002] The present invention relates to a battery pack and a vehicle device including the same, and more specifically to a battery pack and a vehicle device including the same that can prevent ignition of the battery pack surface by lowering the temperature of the battery pack surface. [Background technology]

[0003] In modern society, as the use of portable devices such as mobile phones, laptops, camcorders, and digital cameras has become commonplace, there has been active development of technologies related to these mobile devices. Furthermore, rechargeable secondary batteries are a solution to address air pollution caused by existing gasoline-powered vehicles that use fossil fuels, and are used as the power source for electric vehicles (EVs), hybrid electric vehicles (HEVs), and plug-in hybrid electric vehicles (P-HEVs). This has led to an increased need for development of secondary batteries.

[0004] Currently commercially available secondary batteries include nickel-cadmium batteries, nickel-metal hydride batteries, nickel-zinc batteries, and lithium secondary batteries. Of these, lithium secondary batteries are attracting attention due to their advantages of being free to charge and discharge as they have almost no memory effect compared to nickel-based secondary batteries, a very low self-discharge rate, and high energy density.

[0005] Such lithium secondary batteries mainly use lithium-based oxides and carbon materials as positive and negative electrode active materials, respectively, and include an electrode assembly in which positive and negative electrode plates coated with the positive and negative electrode active materials are arranged with a separator sandwiched between them, and a battery case that hermetically houses the electrode assembly together with an electrolyte.

[0006] Generally, lithium secondary batteries can be classified into can-type secondary batteries, in which an electrode assembly is housed in a metal can, and pouch-type secondary batteries, in which an electrode assembly is housed in a pouch made of an aluminum laminate sheet, depending on the shape of the exterior material.

[0007] Secondary batteries used in small devices typically have two or three battery cells, while secondary batteries used in medium- to large-sized devices such as automobiles typically use a battery module in which multiple battery cells are electrically connected. Such battery modules improve capacity and output by connecting multiple battery cells in series or parallel to each other to form a stack of battery cells. One or more battery modules may be installed with various control and protection systems, such as a battery management system (BMS), a battery disconnect unit (BDU), and a cooling system, to form a battery pack.

[0008] The battery pack may include a battery module as a sub-concept, and the battery module may include a battery cell as a sub-concept. The number of battery cells included in a battery module or the number of battery modules included in a battery pack may be determined in various ways depending on the output and capacity of the battery pack required for the electric vehicle.

[0009] However, one of the most important issues with such battery packs is safety. In particular, if a thermal event occurs in at least one of the battery cells included in the battery pack, high-temperature gas and heat are generated.

[0010] FIG. 1 is a cross-sectional view showing a conventional battery pack and a conventional chassis within a vehicle device.

[0011] Referring to FIG. 1, when thermal runaway occurs, high-temperature venting gas is emitted from the side of the conventional battery pack 1. Thermal runaway inside the conventional battery pack 1 causes the temperature of the surface of the conventional battery pack 1 to rise. The high-temperature venting gas flows onto the surface of the conventional battery pack 1 inside the conventional chassis 10. At this time, the high-temperature venting gas ignites on the surface of the conventional battery pack 1. Since this ignition can lead to explosion of the battery pack 1 and the vehicle device including it, it is necessary to lower the temperature of the battery pack surface to prevent this ignition on the surface of the battery pack. Summary of the Invention [Problem to be solved by the invention]

[0012] The problem that the present invention aims to solve is to prevent ignition of the battery pack surface when thermal runaway occurs, and specifically to provide a battery pack and a vehicle device including the same that can prevent ignition of the battery pack surface by lowering the temperature of the battery pack surface.

[0013] However, the problems to be solved by the embodiments of the present invention are not limited to the above problems, and can be variously expanded within the scope of the technical ideas included in the present invention. [Means for solving the problem]

[0014] A battery pack according to one embodiment of the present invention includes a plurality of battery cells; a pack frame to which the battery cells are directly attached or to which the battery cells are attached while being housed in a module frame; a pack cover that covers the pack frame; and one or more frame members that are attached to the pack cover and that contain cooling water or fire extinguishing water.

[0015] The frame member is a pipe-shaped member having a cavity therein and extending in one direction, and the cooling water or the fire extinguishing water is provided in the cavity.

[0016] The frame member may include a TIM pad that abuts the pack cover.

[0017] An adhesive tape may be included positioned between the frame member and the TIM pad.

[0018] The frame member may include one or more valves for discharging cooling water or fire extinguishing water.

[0019] The valve may include an outlet to the pack cover.

[0020] The frame member includes a mounting portion having a mounting hole formed therein, and a mounting bolt passes through the mounting hole to be fastened to at least one of the pack cover or the pack frame.

[0021] The frame member may include a first hollow portion and a second hollow portion in which the cooling water or the fire extinguishing water is provided, and the mounting portion may be disposed between the first hollow portion and the second hollow portion.

[0022] The frame member is welded to the pack cover.

[0023] A vehicle device according to yet another embodiment of the present invention includes the battery pack, and the frame member is fixed to the pack cover and the chassis inside the vehicle device, respectively, between the pack cover and the chassis inside the vehicle device. [Effects of the Invention]

[0024] According to an embodiment of the present invention, the battery pack includes one or more frame members provided with cooling water or fire extinguishing water, thereby reducing the temperature of the battery pack surface, thereby preventing ignition of the battery pack surface and preventing the spread of flames.

[0025] The effects of the present invention are not limited to those mentioned above, and other effects not mentioned above will be clearly understood by those skilled in the art from the description of the claims. [Brief explanation of the drawings]

[0026] [Figure 1] 1 is a cross-sectional view showing a conventional battery pack and a conventional chassis inside a vehicle device. [Figure 2] 1 is an exploded perspective view showing a battery pack according to an embodiment of the present invention; [Figure 3] 1 is a perspective view showing a battery pack according to an embodiment of the present invention; [Figure 4] 1 is a plan view showing a battery pack according to an embodiment of the present invention; [Figure 5] 1 is a plan view showing a battery pack according to an embodiment of the present invention; [Figure 6] 5 is a cross-sectional view showing a cross section taken along the line AA' in FIG. 4. FIG. [Figure 7] 10 is a cross-sectional view of a battery pack according to another embodiment of the present invention. [Figure 8] 10 is a cross-sectional view of a battery pack according to another embodiment of the present invention. [Figure 9] 5 is a cross-sectional view showing a cross section taken along the line BB' in FIG. 4. [Figure 10] 10 is a cross-sectional view of a battery pack according to another embodiment of the present invention. [Figure 11] FIG. 2 is a partial perspective view showing the outlet of a valve included in the battery pack. [Figure 12] 5 is a cross-sectional view showing a cross section of the chassis taken along the cutting line CC' in FIG. 4. FIG. [Figure 13]FIG. 10 is a cross-sectional view of a chassis according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0027] The present invention may, however, be embodied in various different forms and is not limited to the embodiments set forth herein.

[0028] In order to clearly explain the present invention, parts that are not necessary for the explanation will be omitted, and the same reference numerals will be used throughout the specification to refer to the same or similar components.

[0029] In addition, the size and thickness of each component shown in the drawings are arbitrarily shown for the convenience of explanation, and the present invention is not necessarily limited to those shown in the drawings. In the drawings, thicknesses are exaggerated to clearly show various layers and regions. In the drawings, thicknesses of some layers and regions are exaggerated for the convenience of explanation.

[0030] Furthermore, when a layer, film, region, plate, or other part is said to be "on" or "above" another part, this includes not only the case where it is "directly on" another part, but also the case where there is another part in between. Conversely, when a part is said to be "directly on" another part, it means that there is no other part in between. Furthermore, being "on" or "above" a reference part means being located above or below the reference part, and does not necessarily mean being located "on" or "above" in the direction opposite to gravity.

[0031] Furthermore, throughout the specification, when a part is said to "comprise" a certain element, this does not mean that it may further include other elements, unless specifically stated to the contrary.

[0032] Also, throughout the specification, "in a plane" means when the subject part is viewed from above, and "in cross section" means when the subject part is cut vertically and viewed from the side.

[0033] Fig. 2 is an exploded perspective view showing a battery pack 1000 according to one embodiment of the present invention. Fig. 3 is a perspective view showing a battery pack 1000 according to one embodiment of the present invention. Fig. 4 is a plan view showing a battery pack 1000 according to one embodiment of the present invention. Specifically, Fig. 4 is a plan view of the battery pack 1000 as viewed along the -z axis direction on the xy plane.

[0034] 2 to 4, a battery pack 1000 according to an embodiment of the present invention includes a plurality of battery cells 100. The battery pack 1000 includes a pack frame 1100 to which the battery cells 100 are directly attached or to which the battery cells 100 are attached while being housed in a module frame 110. The battery pack 1000 also includes a pack cover 1200 that covers the pack frame 1100. The battery pack 1000 also includes one or more frame members 1300 that are attached to the pack cover 1200 and that are provided with cooling water or extinguishing water.

[0035] 2 and 3, the frame member 1300 may have a shape that extends long in a direction perpendicular to the direction of the longer width side of the battery pack 1000. In addition, a plurality of frame members 1300 may be provided, and the plurality of frame members 1300 may be arranged at regular intervals along the direction of the longer width side of the battery pack 1000.

[0036] According to an embodiment of the present invention, the battery pack 1000 includes one or more frame members 1300 provided with cooling water or fire extinguishing water, thereby reducing the temperature of the surface of the battery pack 1000. This prevents the surface of the battery pack 1000 from igniting, thereby preventing the spread of flames and explosions.

[0037] The frame member 1300 may include an opening / closing portion (not shown) for injecting or discharging cooling water or fire extinguishing water. A user of the vehicle device can inject or discharge cooling water or fire extinguishing water into or from the frame member 1300 through the opening / closing portion depending on the remaining amount of cooling water or fire extinguishing water in the frame member 1300.

[0038] The frame member 1300 may include a water level sensor (not shown) that can check the remaining amount of coolant or fire extinguishing water provided in the frame member 1300. The vehicle device may include a water level display unit (not shown) that receives data related to the water level of the coolant or fire extinguishing water from the water level sensor and displays the water level. A user of the vehicle device can check the water level of the coolant or fire extinguishing water through the water level display unit.

[0039] In addition, the vehicle device may include a water level warning display unit that can notify a user of the vehicle device when the water level of the cooling water or fire extinguishing water provided in the frame member 1300 exceeds or falls short of a preset water level. When a warning is displayed on the water level warning display unit, the user of the vehicle device can immediately take measures such as repairing the vehicle device.

[0040] Furthermore, the user of the vehicle device can easily check whether there is any oil leakage or leakage of the cooling water or fire extinguishing water in the frame member 1300 through the water level display unit and the water level warning display unit.

[0041] The frame member 1300 may include a temperature sensor (not shown) that can check the temperature of the coolant or extinguishing water provided in the frame member 1300. The vehicle device may include a temperature display unit (not shown) that receives data related to the temperature of the coolant or extinguishing water from the temperature sensor and displays the temperature. A user of the vehicle device can check the temperature of the coolant or extinguishing water through the temperature display unit.

[0042] In addition, the vehicle device may include a temperature warning display unit that can notify a user of the vehicle device when the temperature of the cooling water or fire extinguishing water provided in the frame member 1300 exceeds a preset temperature. When a warning is displayed on the temperature warning display unit, the user of the vehicle device can immediately take measures such as repairing the vehicle device.

[0043] A transparent glass (not shown) is provided on a side of the frame member 1300, through which the remaining amount of cooling water or fire extinguishing water stored in the frame member 1300 can be visually checked. This allows a vehicle device user or a mechanic to directly visually check the remaining amount of cooling water or fire extinguishing water stored in the frame member 1300.

[0044] The frame member 1300 may be provided with a hose (not shown) for injecting or discharging cooling water or fire extinguishing water into or from the frame member 1300. The hose may be connected to the frame member 1300 through the opening / closing portion, or may be connected directly to the frame member 1300 without passing through the opening / closing portion.

[0045] The frame member 1300 can be welded to the pack cover 1200. Through the welding process between the frame member 1300 and the pack cover 1200, the frame member 1300 can be more securely fixed to the pack cover 1200, thereby ensuring the mechanical rigidity of the battery pack 1000.

[0046] Welding-related factors such as the welding method, welding locations, and welding agent can be appropriately determined taking into consideration the size of the battery pack 1000, the size and weight of the frame member 1300, and the material properties of the battery pack 1000 and the frame member 1300. FIG. 5 is a plan view showing a battery pack 1000 according to an embodiment of the present invention. Specifically, FIG. 5 is a plan view of the battery pack 1000 viewed along the y-axis direction on the xz plane. FIG. 6 is a cross-sectional view showing a cross section taken along the line A-A' in FIG. 4. FIG. 9 is a cross-sectional view showing a cross section taken along the line C-C' in FIG. 4.

[0047] 4 to 6 and 9, the frame member 1300 may be a tubular member having a hollow portion 1300a therein and extending in one direction. However, the frame member 1300 of the present invention is not limited to a tubular shape, and may be any shape capable of holding a liquid such as cooling water or fire extinguishing water.

[0048] Cooling water or fire extinguishing water is provided in the hollow portion 1300a. Any known cooling water or fire extinguishing water or a mixture thereof may be used as the cooling water or fire extinguishing water, and any known water may be used as long as it is retained in the hollow portion 1300a inside the frame member 1300 and can dissipate heat from the battery cells 100.

[0049] FIG. 7 is a cross-sectional view of a battery pack 1000 according to another embodiment of the present invention.

[0050] 7, a frame member 1300 according to another embodiment of the present invention may include a TIM pad 1400 that contacts the pack cover 1200. By providing the TIM pad 1400 between the frame member 1300 and the pack cover 1200, heat from the pack cover 1200 can be effectively transferred to the frame member 1300. This effectively reduces the temperature of the surface of the battery pack 1000, preventing ignition of the surface of the battery pack 1000 and preventing the spread of flames.

[0051] The TIM pad 1400 can be of various types, such as thermal grease, thermal dissipation sheet, metal plate, or thermally conductive adhesive, and any known material may be used as long as it can transfer heat from the pack cover 1200 to the frame member 1300.

[0052] FIG. 8 is a cross-sectional view of a battery pack 1000 according to another embodiment of the present invention.

[0053] 8, a battery pack 1000 according to another embodiment of the present invention may include an adhesive tape 1500 positioned between a frame member 1300 and a TIM pad 1400. By including the adhesive tape 1500 in the battery pack 1000, the frame member 1300 and the TIM pad 1400 can be fixed together, thereby ensuring the mechanical rigidity of the battery pack 1000 in the event of vibration, impact, or the like of the vehicle device.

[0054] The material, area, thickness, etc. of the adhesive tape 1500 can be appropriately determined taking into consideration the size, area, weight, material properties, required adhesive strength, thermal conductivity, etc. of the frame member 1300 and the TIM pad 1400.

[0055] Referring again to FIGS. 3-6, the frame member 1300 may include one or more valves 1600 for discharging cooling water or fire extinguishing water.

[0056] The cooling water or extinguishing water discharged through the valve 1600 may evaporate due to the heat on the surface of the battery pack when thermal runaway occurs. As the cooling water or extinguishing water evaporates, that is, as the cooling water or extinguishing water changes phase from liquid to gas, it absorbs heat from the surface of the battery pack, thereby lowering the temperature of the surface of the battery pack. This prevents ignition of the surface of the battery pack and the spread of flames.

[0057] The number, position, type, etc. of the valves 1600 can be appropriately determined in consideration of the size of the battery pack 1000, the capacity of the cooling water or fire extinguishing water in the frame member 1300, and the like.

[0058] The valve 1600 can automatically discharge cooling water or fire extinguishing water in conjunction with the water level sensor and the temperature sensor in the frame member 1300 .

[0059] 11 is a partial perspective view showing an outlet 1700 of a valve 1600 included in the battery pack 1000. FIG. 12 is a cross-sectional view showing a cross section of the chassis 10000 taken along the cutting line CC' in FIG.

[0060] 11 and 12, the valve 1600 may include a vent 1700 to the pack cover 1200.

[0061] As the outlet 1700 of the valve 1600 faces the pack cover 1200, the cooling water or fire extinguishing water discharged from the outlet 1700 of the valve 1600 is mixed with the venting gas discharged from the battery pack 1000. This reduces the concentration of flammable substances in the gas dispersed inside the chassis 10000, thereby preventing ignition on the surface of the battery pack 1000 and, ultimately, preventing an explosion inside the chassis 10000 due to ignition.

[0062] The exhaust port 1700 faces in the direction of the longer width side of the battery pack 1000. Referring again to Figure 9, the frame member 1300 may include a mounting portion 1800 having a mounting hole 1800a formed therein. The mounting bolt 1900 passes through the mounting hole 1800a and is fastened to at least one of the pack cover 1200 or the pack frame 1100. That is, the mounting portion 1800 includes the mounting hole 1800a that penetrates in the -Z-axis direction of Figure 9.

[0063] The pack cover 1200 also includes fastening holes (not shown) at positions corresponding to the mounting holes 1800a. The mounting holes 1800a and the fastening holes are aligned, and a mounting bolt 1900 is fastened through them, thereby fixing the frame member 1300 to the battery pack 1000. In one example, the mounting bolt 1900 is fastened to the pack cover 1200. In another example, the mounting bolt 1900 is fastened to both the pack cover 1200 and the pack frame 1100. In one example, the pack frame 1100 may include vertical beams for dividing the battery cells 100 into sections. For stable fastening, the mounting bolt 1900 passes through the mounting holes 1800a and the fastening holes of the pack cover 1200 and is then fastened to the vertical beams. Alternatively, the mounting bolt 1900 passes through the vertical beams and is then bolted to a separate nut member.

[0064] For effective fixing, it is preferable that each frame member 1300 has a plurality of mounting portions 1800 and a plurality of mounting bolts 1900 applied thereto.

[0065] FIG. 10 is a cross-sectional view of a battery pack according to another embodiment of the present invention.

[0066] Referring to FIG. 10, a frame member 1300 according to another embodiment of the present invention may include a first hollow portion 2000 and a second hollow portion 2100 in which cooling water or fire extinguishing water is provided.

[0067] The first hollow portion 2000 and the second hollow portion 2100 may include a first opening / closing unit (not shown) and a second opening / closing unit (not shown), respectively. A user of the vehicle device can inject or discharge cooling water or fire extinguishing water into or from all of the first hollow portion 2000 and the second hollow portion 2100 or one of the first hollow portion 2000 and the second hollow portion 2100 through the first opening / closing unit and the second opening / closing unit, depending on the remaining amount of cooling water or fire extinguishing water in the first hollow portion 2000 and the second hollow portion 2100.

[0068] The first hollow portion 2000 and the second hollow portion 2100 may be provided with a first water level sensor (not shown) and a second water level sensor (not shown), respectively. The vehicle device may be provided with a first water level display unit and a second water level display unit that receive data related to the water level of the cooling water or fire extinguishing water in the first hollow portion 2000 and the second hollow portion 2100 from the first water level sensor and the second water level sensor, respectively, and display the water level. A user of the vehicle device can check the water level of the cooling water or fire extinguishing water in the first hollow portion 2000 and the second hollow portion 2100, respectively, through the first water level display unit and the second water level display unit.

[0069] The vehicle device may also include a first water level warning display unit and a second water level warning display unit that can notify a user of the vehicle device when the water level of the cooling water or fire extinguishing water in the first hollow portion 2000 or the second hollow portion 2100 exceeds or falls short of a preset water level. When a warning is displayed on both the first water level warning display unit and the second water level warning display unit, or when a warning is displayed on one of the first water level warning display unit and the second water level warning display unit, the user of the vehicle device can immediately take measures such as repairing the vehicle device.

[0070] In addition, the user of the vehicle device can easily check whether there is any oil leakage or leakage of cooling water or fire extinguishing water within the frame member 1300 through the first water level display unit, the second water level display unit, the first water level warning display unit, and the second water level warning display unit.

[0071] The first hollow portion 2000 and the second hollow portion 2100 may be provided with a first temperature sensor (not shown) and a second temperature sensor (not shown), respectively. The vehicle device may be provided with a first temperature display unit and a second temperature display unit that receive data on the temperature of the coolant or extinguishing water in the first hollow portion 2000 and the second hollow portion 2100 from the first temperature sensor and the second temperature sensor, respectively, and display the temperature. A user of the vehicle device can check the temperature of the coolant or extinguishing water in the first hollow portion 2000 and the second hollow portion 2100 through the first temperature display unit and the second temperature display unit.

[0072] The vehicle device may also include a first temperature warning display unit and a second temperature warning display unit that can notify a user of the vehicle device when the temperature of the cooling water or fire extinguishing water in the first hollow portion 2000 or the second hollow portion 2100 exceeds or falls short of a preset temperature. When a warning is displayed on both the first temperature warning display unit and the second temperature warning display unit, or when a warning is displayed on one of the first temperature warning display unit and the second temperature warning display unit, the user of the vehicle device can immediately take measures such as repairing the vehicle device.

[0073] In addition, the user of the vehicle device can easily check whether there is any oil leakage or leakage of cooling water or fire extinguishing water within the frame member 1300 through the first temperature display unit, the second temperature display unit, the first temperature warning display unit, and the second temperature warning display unit.

[0074] The first hollow portion 2000 and the second hollow portion 2100 may be provided with a first hose and a second hose for injecting or discharging cooling water or fire extinguishing water into or from the first hollow portion 2000 and the second hollow portion 2100, respectively. The first hose and the second hose may communicate with the first hollow portion 2000 and the second hollow portion 2100 through the first opening / closing portion and the second opening / closing portion, or may communicate directly with the frame member 1300 without passing through the first opening / closing portion and the second opening / closing portion.

[0075] The first hollow portion 2000 and the second hollow portion 2100 may each be provided with a valve 1600. Each valve 1600 may independently discharge the cooling water or extinguishing water depending on the temperature or remaining amount of the cooling water or extinguishing water in the first hollow portion 2000 and the second hollow portion 2100. Specifically, only the valve 1600 provided in the first hollow portion 2000 may be operated to discharge the cooling water or extinguishing water in the first hollow portion 2000, regardless of whether the valve 1600 provided in the second hollow portion 2100 is operated.

[0076] The mounting portion 1800 may be disposed between the first hollow portion 2000 and the second hollow portion 2100. That is, the first hollow portion 2000 and the second hollow portion 2100 are separated by the mounting portion 1800.

[0077] FIG. 13 is a cross-sectional view of a chassis 10000 according to another embodiment of the present invention.

[0078] 12 and 13, a vehicle device according to another embodiment of the present invention may include a battery pack 1000.

[0079] The frame member 1300 is fixed between the pack cover 1200 and the chassis 10000 inside the vehicle device, to both the pack cover 1200 and the chassis 10000 inside the vehicle device. As a result, the frame member 1300 is fixed even in situations where the vehicle device is subjected to vibration, impact, etc., so that mechanical rigidity can be ensured and fire inside the chassis 10000 can be prevented.

[0080] 12 , frame member 1300 is fixed to pack cover 1200 between pack cover 1200 and chassis 10000 inside the vehicle device. Specifically, frame member 1300 is fixed to pack cover 1200 and chassis 10000 inside the vehicle device between pack cover 1200 and chassis 10000 inside the vehicle device. As a result, frame member 1300 is fixed to pack cover 1200 and chassis 10000 inside the vehicle device between pack cover 1200 and chassis 10000 inside the vehicle device, respectively.

[0081] The frame member 1300 can be fixed to the chassis 10000 while minimizing the space between the upper ends through surface contact between the chassis 10000 and the frame member 1300. In this case, a gasket (not shown) or the like is provided between the frame member 1300 and the chassis 10000.

[0082] The chassis 10000 may include a recess 11000 having a recessed shape corresponding to the protruding shape of the mounting bolt 1900 .

[0083] Furthermore, the frame member 1300 is fixed to the chassis 10000 by bolt / nut connection, but is not limited thereto.

[0084] Although not shown, the frame member is secured only to the chassis within the vehicle device between the pack cover and the chassis within the vehicle device.

[0085] In this embodiment, terms indicating directions such as front, back, left, right, up, and down are used, but these terms are merely for convenience of explanation and may change depending on the position of the object of interest, the position of the observer, etc.

[0086] Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements made by those skilled in the art using the basic concept of the present invention defined in the following claims also fall within the scope of the present invention. [Explanation of symbols]

[0087] 1000: Battery pack 1100: Pack Frame 1200: Pack cover 1300: Frame members 1300a: Hollow part 1400:TIM pad 1500: Adhesive tape 1600: Valve 1700: Outlet 10000: Chassis

Claims

1. a plurality of battery cells; a pack frame to which the battery cells are directly attached or to which the battery cells are attached in a state of being housed in a module frame; a pack cover covering the pack frame; and One or more frame members provided on the pack cover and equipped with cooling water or fire extinguishing water Including the battery pack.

2. The battery pack of claim 1 , wherein the frame member is a tubular member having a hollow portion therein and extending in one direction, and the cooling water or the extinguishing water is provided in the hollow portion.

3. The battery pack according to claim 1 , wherein the frame member includes a TIM pad that abuts against the pack cover.

4. The battery pack of claim 3 including an adhesive tape located between the frame member and the TIM pad.

5. The battery pack according to claim 1 , wherein the frame member includes one or more valves for discharging cooling water or fire extinguishing water.

6. The battery pack according to claim 5 , wherein the valve includes an outlet toward the pack cover.

7. The frame member includes a mounting portion having a mounting hole formed therein, The battery pack according to claim 1 , wherein a mounting bolt passes through the mounting hole and is fastened to at least one of the pack cover or the pack frame.

8. 8. The battery pack of claim 7, wherein the frame member includes a first hollow portion and a second hollow portion in which the cooling water or the fire extinguishing water is provided, and the mounting portion is located between the first hollow portion and the second hollow portion.

9. The battery pack according to claim 1 , wherein the frame member is welded to the pack cover.

10. 10. A vehicle device including a battery pack according to claim 1, A vehicle device, wherein the frame member is fixed to each of the pack cover and the chassis within the vehicle device between the pack cover and the chassis within the vehicle device.

Images