Battery pack and automobile including same

Abstract

A battery pack and a vehicle including the same are disclosed. The battery pack according to an embodiment of the present invention includes a battery module including a plurality of battery cells and a plurality of cooling tubes arranged between the plurality of battery cells and through which a cooling fluid flows for cooling the battery cells; a pack case that houses the battery module; and a cooling fluid distribution member that distributes the cooling fluid to the plurality of cooling tubes, the cooling tubes and the cooling fluid distribution member being connected to each other in contact with each other.

Description

[Technical field]

[0001] This application claims priority to Korean Patent Application No. 10-2022-0186694 filed on December 28, 2022 and Korean Patent Application No. 10-2023-0107852 filed on August 17, 2023, the entire contents of which are incorporated herein by reference in their entirety in the specification and drawings.

[0002] The present invention relates to a battery pack and a vehicle including the same, and more particularly to a battery pack capable of guiding uniform distribution of a cooling fluid and a vehicle including the same. [Background technology]

[0003] Secondary batteries, which have high applicability to various products and electrical properties such as high energy density, are widely used not only in portable devices but also in electric vehicles (EVs) and hybrid electric vehicles (HEVs) that are driven by electric drive sources. These secondary batteries have the primary advantage of dramatically reducing the use of fossil fuels, as well as the advantage of not producing any by-products associated with energy use, and are therefore attracting attention as a new energy source that is environmentally friendly and improves energy efficiency.

[0004] Currently, the types of secondary batteries that are widely used include lithium ion batteries, lithium polymer batteries, nickel cadmium batteries, nickel hydrogen batteries, and nickel zinc batteries. The operating voltage of such a unit secondary battery cell, i.e., a unit battery cell, is about 2.5V to 4.5V. Therefore, when a higher output voltage is required, a battery pack is constructed by connecting a plurality of batteries in series. In addition, a battery pack may be constructed by connecting a plurality of battery cells in parallel depending on the charge / discharge capacity required for the battery pack. Therefore, the number of batteries included in the battery pack may be variously set depending on the required output voltage or charge / discharge capacity.

[0005] Meanwhile, when configuring a battery pack by connecting multiple battery cells in series / parallel, a common method is to first configure a battery module including at least one battery cell, and then use the at least one battery module to add other components to configure a battery pack or a battery rack.

[0006] A conventional battery pack includes a battery module including a plurality of battery cells and a pack case that houses the battery module. Here, the battery module may be provided with the battery cells and a plurality of cooling tubes through which a cooling fluid flows to cool the battery cells.

[0007] However, in conventional battery packs, when supplying cooling fluid to multiple cooling tubes, it is difficult to distribute the cooling fluid evenly to each cooling tube, resulting in uneven flow of the cooling fluid and thereby reduced cooling performance. Summary of the Invention [Problem to be solved by the invention]

[0008] Therefore, one object of the present invention is to provide a battery pack and an automobile including the same, which are capable of uniformly distributing a cooling fluid to each of a plurality of cooling tubes.

[0009] Another object of the present invention is to provide a battery pack and an automobile including the same, in which the formation of cooling passages is easy and which is more advantageous in terms of modifying the structural design.

[0010] However, the technical problems that the present invention aims to solve are not limited to the problems described above, and other problems not mentioned will be clearly understood by those skilled in the art from the description of the invention described below. [Means for solving the problem]

[0011] According to one aspect of the present invention, a battery pack can be provided that includes: a battery module including a plurality of battery cells and a plurality of cooling tubes disposed between the plurality of battery cells and through which a cooling fluid flows for cooling the battery cells; a pack case that houses the battery module; and a cooling fluid distribution member that distributes the cooling fluid to the plurality of cooling tubes, wherein the cooling tubes and the cooling fluid distribution member are connected in abutting contact with each other.

[0012] In one embodiment, the cooling system may include a gasket member that encases the outside of the cooling tubes and the cooling fluid distribution member.

[0013] In one aspect, the gasket member may include a main body portion having a hollow space into which the cooling tube and the cooling fluid distribution member are inserted, and extension portions protruding from both side ends of the main body portion.

[0014] In one aspect, the extension portion may be formed to extend outwardly from the end portion of the main body portion.

[0015] In one aspect, an engagement groove may be formed on the outer side of at least one of the cooling tube and the cooling fluid distribution member, and an engagement protrusion that is engaged with the engagement groove may be formed on the inner side of the main body.

[0016] In one embodiment, the locking projections may be formed to be inclined from both side ends of the main body portion toward the center thereof.

[0017] In one aspect, the gasket member may be made from a resilient material.

[0018] In one embodiment, the gasket member may be made from rubber.

[0019] In one aspect, the cooling fluid distribution member may include a fluid supply member that supplies a cooling fluid, and the cooling fluid distribution member may include a distribution pipe having a plurality of coupling portions respectively coupled to the plurality of cooling tubes, and a connecting pipe that connects the distribution pipe and the fluid supply member.

[0020] In one embodiment, the apparatus may include a pipe connection port for connecting the distribution pipe and the connection pipe.

[0021] In one embodiment, the connecting pipes may include a first connecting pipe coupled to the fluid supply member, and a second connecting pipe connected to the first connecting pipe and connected to the distribution pipe.

[0022] In one embodiment, the device may include a multiple port connecting the first connecting pipe and the second connecting pipe.

[0023] In one embodiment, the multiple port is configured as a three-way port, and the three-way port can connect one first connecting pipe and two second connecting pipes.

[0024] In one embodiment, the fluid supply device may include a connector that connects the fluid supply member and the connecting pipe.

[0025] Meanwhile, according to another aspect of the present invention, a vehicle including the battery pack can be provided. Effect of the Invention

[0026] According to the various aspects described above, it is possible to uniformly distribute the cooling fluid to each of the plurality of cooling tubes.

[0027] This has the effect of making the flow of the cooling fluid uniform and ensuring the cooling performance.

[0028] Furthermore, according to the various aspects described above, the formation of the cooling flow passages becomes easier, and there is an advantageous effect in terms of modifying the structural design.

[0029] In addition to these, the present invention can have various other effects, which will be described in the sections for each embodiment, and descriptions of effects that can be easily inferred by a person skilled in the art will be omitted.

[0030] The drawings attached to this specification are intended to illustrate preferred embodiments of the present invention and serve to facilitate a further understanding of the technical ideas of the present invention as well as the content of the invention, and therefore the present invention should not be interpreted as being limited to only the matters depicted in the drawings. [Brief description of the drawings]

[0031] [Figure 1] 1 is an overall perspective view of a battery pack according to an embodiment of the present invention; [Diagram 2] FIG. 2 is a perspective view showing the inside of FIG. [Diagram 3] FIG. 3 is an enlarged view of a portion A in FIG. [Figure 4] 1 is an exploded perspective view of a battery pack according to an embodiment of the present invention; FIG. [Diagram 5] 2 is an exploded perspective view of a battery module in a battery pack according to an embodiment of the present invention; FIG. [Figure 6] FIG. 2 is an exploded perspective view of a cooling fluid distribution member in a battery pack according to an embodiment of the present invention. [Figure 7] FIG. 7 is a diagram showing the flow of the cooling fluid in FIG. 6. [Figure 8] 1 is a perspective view of a battery module in a battery pack according to an embodiment of the present invention; FIG. [Figure 9] 9 is a cross-sectional view of the cooling fluid distribution member and gasket member of portion B of FIG. 8. [Figure 10] 9 is a cross-sectional view of a portion B of FIG. 8. [Figure 11] FIG. 11 is an exploded perspective view of FIG. [Figure 12] FIG. 2 is a partially cutaway perspective view of a gasket member in a battery pack according to an embodiment of the present invention. [Figure 13] 13 is a cross-sectional view of an alternative embodiment of the gasket member of FIG. 12. [Figure 14] 14 is a cross-sectional view of a cooling fluid distribution member having a shape corresponding to the gasket member of FIG. 13. [Figure 15] 1 is a diagram illustrating a vehicle including a battery pack according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0032] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings. Prior to this, the terms and words used in this specification and claims are not to be construed as being limited to their ordinary or dictionary meanings, but are to be construed as meanings and concepts corresponding to the technical ideas of the present invention in accordance with the principle that the inventor can appropriately define the concepts of terms himself in order to best describe the invention. Therefore, it should be understood that the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent the entire technical ideas of the present invention, and therefore there may be various equivalents and modifications that can be substituted therefor at the time of this application.

[0033] In the drawings, the size of each component or a specific part constituting each component is somewhat exaggerated, omitted, or illustrated in a schematic manner for ease of explanation and clarity. Therefore, the size of each component does not entirely reflect the actual size. If a detailed description of related publicly known functions or configurations is deemed to be likely to unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

[0034] The terms "coupled" or "connected" as used in this specification include not only cases where one member is directly coupled or connected to another member, but also cases where one member is indirectly coupled or connected to another member via a coupling member.

[0035] Throughout this specification, when a part is said to "comprise" a certain component, this means that it may further include other components, not excluding other components, unless otherwise specified.

[0036] FIG. 1 is an overall perspective view of a battery pack according to one embodiment of the present invention, FIG. 2 is a perspective view showing the interior of FIG. 1, FIG. 3 is an enlarged view of a portion A of FIG. 2, FIG. 4 is an exploded perspective view of a battery pack according to one embodiment of the present invention, and FIG. 5 is an exploded perspective view of a battery module in a battery pack according to one embodiment of the present invention.

[0037] 1 to 5, a battery pack 10 according to an embodiment of the present invention may include a battery module 100, a pack case 200, and a cooling fluid distribution member 300.

[0038] 5 , the battery module 100 includes a plurality of battery cells 110. The battery module 100 also includes a plurality of cooling tubes 120. The plurality of cooling tubes 120 are disposed between the plurality of battery cells 110, and a cooling fluid for cooling the battery cells 110 flows through the cooling tubes 120. Furthermore, the battery module 100 may include a module case for accommodating the battery cells 110.

[0039] The battery cell 110 may be provided in various types. For example, the battery cell 110 may include a prismatic battery cell (not shown) or a pouch-type battery cell (not shown). The pouch-type battery cell may have a structure in which a unit cell in which a positive electrode plate, a separator, and a negative electrode plate are arranged in this order, or a bi-cell in which a positive electrode plate, a separator, a negative electrode plate, a separator, a positive electrode plate, a separator, and a negative electrode plate are arranged in this order, are stacked in accordance with the battery capacity. The pouch-type battery cell may also include an electrode lead. The electrode lead is a type of terminal exposed to the outside and connected to an external device, and may be made of a conductive material. The electrode lead may include a positive electrode lead and a negative electrode lead.

[0040] 2 to 5, the battery cell 110 may include a cylindrical battery cell. That is, the battery cell 110 provided in the battery pack 10 according to an embodiment of the present invention may be various, but for convenience of explanation, the following description will focus on the case where the battery cell 110 is a cylindrical battery cell.

[0041] The cylindrical battery cell may include an electrode assembly, a battery can, a positive current collector, a cell terminal, and a negative current collector.

[0042] The electrode assembly includes a positive electrode plate, a negative electrode plate, and a separator, the separator being interposed between the positive electrode plate and the negative electrode plate, and may be wound in one direction with the separator interposed between the positive electrode plate and the negative electrode plate in the form of a jelly roll having a center hole.

[0043] For example, the electrode assembly may be manufactured by winding a laminate formed by sequentially stacking a negative electrode plate, a separator, a positive electrode plate, and a separator at least once. Here, the positive electrode plate and the negative electrode plate may be formed in a sheet shape. That is, the electrode assembly may be a wound type electrode assembly. The electrode assembly may have a winding structure well known in the related technical field and is not particularly limited.

[0044] The positive electrode plate has a positive electrode active material applied to one or both sides, and the negative electrode plate has a negative electrode active material applied to one or both sides. The positive electrode active material applied to the positive electrode plate and the negative electrode active material applied to the negative electrode plate can be any active material known in the art without any limitation.

[0045] As the separator, a porous polymer film, for example, a porous polymer film made of a polyolefin polymer such as an ethylene homopolymer, a propylene homopolymer, an ethylene / butene copolymer, an ethylene / hexene copolymer, an ethylene / methacrylate copolymer, etc., can be used alone or in a laminate of these. As another example, as the separator, a normal porous nonwoven fabric, for example, a nonwoven fabric such as a high melting point glass fiber or a polyethylene terephthalate fiber can be used.

[0046] At least one surface of the separator may include a coating layer of inorganic particles. The separator itself may also be made of a coating layer of inorganic particles. The particles constituting the coating layer may have a structure bound with a binder such that there is an interstitial volume between adjacent particles.

[0047] The battery can is formed in a cylindrical shape, and can accommodate the electrode assembly therein and be electrically connected to the negative electrode plate of the electrode assembly, so that the battery can may have the same polarity as the negative electrode plate, i.e., a negative electrode, but is not limited thereto.

[0048] In addition, a gap of a predetermined size may be formed between the battery can and the electrode assembly (between the battery can and the positive current collector plate when the electrode assembly is coupled with a positive current collector plate), and an insulator may be interposed in the gap. The battery can may be made of a conductive metal, such as, but not limited to, aluminum, steel, stainless steel, etc.

[0049] The positive current collector is electrically connected to the positive plate, for example, the positive current collector may be connected to the positive plate at the top of the electrode assembly.

[0050] The cell terminal is made of a conductive metal material and is electrically connected to the positive current collector plate. The cell terminal is also electrically connected to the positive plate of the electrode assembly via the positive current collector plate, and thus has a positive polarity. That is, the cell terminal can function as a positive terminal.

[0051] The negative current collector is electrically connected to the negative plate and may be made of a conductive metal material such as aluminum, steel, copper, nickel, or the like.

[0052] Referring to FIG. 5, a plurality of cooling tubes 120 are provided. The cooling tubes 120 may be formed in various tubular shapes so that a cooling fluid for cooling the battery cells 110 flows. Furthermore, a plurality of cooling tubes 120 are disposed between a plurality of battery cells 110. In this case, one cooling tube 120 can cool the battery cells 110 that are in contact with both sides of the cooling tube 120. Furthermore, the fluid flowing through the cooling tube 120 may be various, for example, water, but is not limited thereto. The cooling fluid may be supplied from a fluid supply member 500 (see FIG. 6), and the fluid supply member 500 may be connected to the cooling fluid distribution member 300.

[0053] In order to improve cooling performance, it is advantageous for the cooling fluid to flow uniformly through each of the multiple cooling tubes 120. Referring to Figures 2 and 3, when multiple cooling tubes 120 are provided, a cooling fluid distribution member 300 is coupled to the cooling tubes 120 to uniformly cool the battery cells 110.

[0054] The cooling tube 120 can be connected to the cooling fluid distribution member 300 in various ways, for example, the cooling tube 120 and the cooling fluid distribution member 300 can be connected by abutting each other (see Figs. 9 and 10). That is, the cooling tube 120 and the connection portion 311 of the distribution pipe 310 of the cooling fluid distribution member 300 are connected by abutting each other.

[0055] Additionally, a gasket member 400 may be provided to encase the outside of the cooling tubes 120 and the cooling fluid distribution member 300, as will be described in more detail below.

[0056] 2 and 4, the pack case 200 accommodates the battery module 100. To this end, the pack case 200 may be provided with an accommodation space for accommodating the battery module 100. In addition, the pack case 200 may accommodate or be coupled to various devices for controlling charging and discharging of the battery cells 110, such as a BMS (battery management system), a current sensor, a fuse, etc. In addition, pack leads may be coupled to the pack case 200.

[0057] FIG. 6 is an exploded perspective view of a cooling fluid distribution member in a battery pack according to one embodiment of the present invention, and FIG. 7 is a diagram showing the flow of the cooling fluid in FIG.

[0058] The cooling fluid distribution member 300 distributes the cooling fluid to the side of the plurality of cooling tubes 120. Here, it is preferable that the cooling fluid distribution member 300 distributes the cooling fluid to each of the plurality of cooling tubes 120 uniformly.

[0059] 6, the cooling fluid distribution member 300 may include a distribution pipe 310 and a connection pipe 320. The distribution pipe 310 has a plurality of coupling parts 311 respectively coupled to a plurality of cooling tubes 120. The plurality of coupling parts 311 may be formed in parallel on the distribution pipe 310.

[0060] The coupling portion 311 may have various shapes, for example, but not limited to, a circular cross section. If necessary, the cross section of the coupling portion 311 may have more various shapes, such as a square, a triangle, or other shapes. Here, the inside of the coupling portion 311 is an empty space, which allows the cooling fluid to move.

[0061] Furthermore, the multiple connections 311 may be arranged to be spaced apart from one another at a predetermined interval, such that the cooling fluid flowing through the distribution pipe 310 travels to the cooling tubes 120 via the multiple connections 311 .

[0062] The coupling portion 311 is protruded from the end of the distribution pipe 310. Here, the coupling portion 311 may be integrally formed with the distribution pipe 310, or may be produced separately from the distribution pipe 310 and then coupled to the distribution pipe 310.

[0063] 6 and 7, the distribution pipes 310 are connected to the connecting pipes 320, and the cooling fluid supplied from the fluid supply member 500 flows to the distribution pipes 310 through the connecting pipes 320.

[0064] The connecting pipe 320 connects the distribution pipe 310 and the fluid supply member 500. Here, the connecting pipe 320 can be connected to the distribution pipe 310 through the pipe connection port 330. That is, the pipe connection port 330 connects the distribution pipe 310 and the connecting pipe 320. Also, the connecting pipe 320 can be connected to the fluid supply member 500 through the connector 350. That is, the connector 350 connects the fluid supply member 500 and the connecting pipe 320.

[0065] The connecting pipe 320 may include a first connecting pipe 321 and a second connecting pipe 322. The first connecting pipe 321 may be coupled to the fluid supply member 500 via a connector 350. And the second connecting pipe 322 may be connected to the distribution pipe 310 via a pipe connection port 330.

[0066] Also, the second connection pipe 322 can be connected to the first connection pipe 321 via the multiplex port 340. That is, the multiplex port 340 connects the first connection pipe 321 and the second connection pipe 322.

[0067] The multiple port 340 may have various configurations, for example, it may be configured as a three-way port as shown in Fig. 6. Here, the three-way port may be configured to connect one first connection pipe 321 and two second connection pipes 322. For example, two second connection pipes 322 may be connected to the three-way port on both sides of the three-way port, and one first connection pipe 321 arranged in a direction intersecting the two second connection pipes 322 may be connected to the three-way port. However, this is merely one embodiment.

[0068] FIG. 8 is an oblique view of a battery module in a battery pack according to one embodiment of the present invention, FIG. 9 is a cross-sectional view of a cooling fluid distribution member and a gasket member of part B of FIG. 8, FIG. 10 is a cross-sectional view of a portion of part B of FIG. 8, FIG. 11 is an exploded oblique view of FIG. 10, and FIG. 12 is a partially cutaway oblique view of a gasket member in a battery pack according to one embodiment of the present invention.

[0069] 8 to 12, the gasket member 400 is provided to enclose the outside of the cooling tube 120 and the cooling fluid distribution member 300. Specifically, the gasket member 400 is provided to enclose the coupling portion 311 of the distribution pipe 310 of the cooling fluid distribution member 300 and the cooling tube 120 to prevent the cooling fluid from leaking. That is, in order to seal, the gasket member 400 seals the gap between the coupling portion 311 of the distribution pipe 310 and the cooling tube 120. The gasket member 400 may be formed to have different widths, thicknesses, etc. depending on the required performance.

[0070] The gasket member 400 may be made of various materials, for example, various elastic materials. Specifically, the gasket member 400 may be made of various types of rubber, but is not limited thereto.

[0071] Referring to FIG. 12, the gasket member 400 may be configured to include a body portion 410 and an extension portion 420 .

[0072] A hollow 411 may be formed in the body portion 410. Referring to FIG. 10 , the cooling tube 120 is inserted into the hollow 411 from one side of the body portion 410, and the coupling portion 311 of the distribution pipe 310 is inserted from the other side of the body portion 410, so that the cooling tube 120 and the coupling portion 311 abut against each other inside the body portion 410 of the gasket member 400.

[0073] The extension portions 420 protrude from both end portions of the main body portion 410. The extension portions 420 may be formed to spread outward from the end portions of the main body portion 410. Here, when the extension portions 420 have a shape that spreads outward from the main body portion 410, the cooling tubes 120 and the coupling portion 311 may be easily inserted into the main body portion 410 of the gasket member 400.

[0074] 12, the inner surface of the body 410 of the gasket member 400 may have a flat shape without any protrusions or grooves. However, a protrusion 313 may be formed on the outer side of the coupling portion 311 of the distribution pipe 310.

[0075] 13 is a cross-sectional view of a modified embodiment of the gasket member of FIG. 12, and FIG. 14 is a cross-sectional view of a cooling fluid distribution member having a shape corresponding to that of the gasket member of FIG.

[0076] 13, a locking protrusion 412 may be formed on the inside of the body 410. And, referring to Fig. 14, a locking groove 312 may be formed on the outside of the coupling portion 311 of the distribution pipe 310 of the cooling fluid distribution member 300. Although not shown in the drawings, a locking groove (not shown) may also be formed on the outside of the cooling tube 120.

[0077] When the cooling tube 120 and the coupling portion 311 are inserted into the main body portion 410 of the gasket member 400, the locking protrusion 412 formed on the inside of the main body portion 410 can be engaged and fixed into the outer locking groove 312 of the coupling portion 311 or the outer locking groove (not shown) of the cooling tube 120.

[0078] Here, the locking projections 412 formed on the inside of the main body portion 410 may be inclined from both inner side ends of the main body portion 410 toward the center, but are not limited to this.

[0079] Meanwhile, as an alternative embodiment, a locking groove (not shown) may be formed on the inside of the body 410, and a locking protrusion (not shown) may be formed on the outside of the coupling portion 311 of the distribution pipe 310 or the outside of the cooling tube 120.

[0080] FIG. 15 is a diagram illustrating a vehicle including a battery pack according to an embodiment of the present invention.

[0081] 15, an automobile 20 according to an embodiment of the present invention may include one or more of the above-described battery packs 10. The battery pack 10 according to an embodiment of the present invention may be applied to the automobile 20, for example, a specific automobile 20 that is configured to use electricity, such as an electric automobile or a hybrid automobile.

[0082] In addition to the battery pack 10, the automobile 20 according to an embodiment of the present invention may further include various other components included in the automobile 20. For example, the automobile 20 according to an embodiment of the present invention may further include a vehicle body, a motor, a control device such as an electronic control unit (ECU), and the like, in addition to the battery pack 10 according to an embodiment of the present invention.

[0083] Also, an energy storage device according to an embodiment of the present invention includes one or more battery packs 10 according to an embodiment of the present invention described above. Furthermore, an energy storage device according to an embodiment of the present invention may further include general components included in an energy storage device, in addition to such battery pack 10. In particular, an energy storage device according to an embodiment of the present invention may be a residential (building) energy storage device for home or office use used to store energy in home or office homes, buildings, and the like.

[0084] In addition, since the energy storage device has a large energy capacity, it may include a plurality of battery packs 10 according to an embodiment of the present invention, which are electrically connected to each other. In addition, the energy storage device according to an embodiment of the present invention may further include various other components of an energy storage device known at the time of filing of the present invention. Furthermore, such an energy storage device may be used in various places and devices, such as a smart grid system or an electric charging station.

[0085] According to the various embodiments described above, it is possible to provide a battery pack 10 and an automobile 20 including the battery pack 10 that can guide uniform distribution of cooling fluid to the cooling tube 120 side.

[0086] This makes it possible to provide a battery pack 10 and an automobile 20 including the battery pack 10, which can ensure cooling performance by a uniform flow of the cooling fluid.

[0087] Furthermore, according to the various embodiments as described above, it is possible to provide a battery pack 10 and an automobile 20 including the battery pack 10, which are easy to form cooling channels and are more advantageous in terms of adapting to changes in structural design.

[0088] In this specification, when terms indicating directions such as up, down, left, right, front, and rear are used, it will be obvious to a person skilled in the art of the present invention that these terms are used merely for convenience of explanation and may vary depending on the position of the object in question, the position of the observer, etc.

[0089] Although the present invention has been described above with reference to the limited embodiments and drawings, it goes without saying that the present invention is not limited thereto, and various modifications and variations are possible within the scope of the technical spirit of the present invention and the scope of the claims by those skilled in the art to which the present invention belongs. Therefore, the above-disclosed embodiments should be considered from an explanatory perspective, not a restrictive one. The true scope of the technical spirit of the present invention is set forth in the claims, and all differences within the scope of the equivalents thereto should be interpreted as being included in the present invention. [Industrial Applicability]

[0090] The present invention relates to a battery pack and an automobile including the same, and is particularly applicable to industries related to secondary batteries. [Explanation of symbols]

[0091] 10 Battery Pack 100 Battery Module 110 Battery Cell 120 Cooling tube 200 pack case 300 Cooling fluid distribution member

Claims

1. a battery module including a plurality of battery cells and a plurality of cooling tubes disposed between the plurality of battery cells and through which a cooling fluid flows for cooling the battery cells; A pack case that houses the battery module; a cooling fluid distribution member that distributes a cooling fluid to the plurality of cooling tubes; Including, the cooling tube and the cooling fluid distribution member are connected in abutting contact with each other.

2. 2. The battery pack according to claim 1, further comprising a gasket member encasing an exterior of the cooling tube and the cooling fluid distribution member.

3. The gasket member is a main body having a hollow space into which the cooling tube and the cooling fluid distribution member are inserted; Extension portions protruding from both side ends of the main body portion; 3. The battery pack of claim 2, comprising:

4. The battery pack according to claim 3 , wherein the extension portions are formed so as to extend outward from both side ends of the main body portion.

5. A locking groove is formed on the outer surface of at least one of the cooling tube and the cooling fluid distribution member, The battery pack according to claim 3 , wherein a locking protrusion that is engaged with the locking groove is formed on an inner side of the main body.

6. The battery pack according to claim 5 , wherein the locking projections are formed so as to be inclined from both side ends of the body portion toward a center portion.

7. The battery pack of claim 2 , wherein the gasket member is made of an elastic material.

8. The battery pack of claim 7 , wherein the gasket member is made of rubber.

9. a fluid supply member for supplying a cooling fluid; The cooling fluid distribution member includes: a plurality of distribution pipes each having a plurality of coupling portions coupled to the plurality of cooling tubes; a connection pipe connecting the distribution pipe and the fluid supply member; 10. The battery pack of claim 1 , comprising:

10. The battery pack according to claim 9 , comprising a pipe connection port connecting the distribution pipe and the connecting pipe.

11. The connecting pipe is a first connecting pipe coupled to the fluid supply member; a second connecting pipe connected to the first connecting pipe and connected to the distribution pipe.

12. 12. The battery pack according to claim 11, comprising a multiple port connecting the first connecting pipe and the second connecting pipe.

13. The multiplex port is configured as a 3-way port; 13. The battery pack according to claim 12, wherein the three-way port connects one of the first connecting pipes and two of the second connecting pipes.

14. The battery pack according to claim 9 , further comprising a connector connecting the fluid supply member and the connecting pipe.

15. A motor vehicle comprising a battery pack according to any one of claims 1 to 14.

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