Battery module, battery pack including the battery module, and electronic devices

Abstract

A battery module with improved manufacturing efficiency and improved cooling efficiency is disclosed. To achieve the above objectives, the battery module according to the invention includes: a plurality of secondary batteries; and a cooling member configured to load the plurality of secondary batteries, wherein the cooling member includes: an upper frame, which is plate-shaped with a predetermined length such that the plurality of secondary batteries are loaded on one surface of the upper frame; and a lower frame, which is connected to another surface of the upper frame and has a coolant channel configured to allow coolant to flow through the coolant channel.

Description

Technical Field

[0001] This disclosure relates to a battery module including a cooling component, a battery pack including the battery module, and an electronic device, and more specifically, to a battery module having improved manufacturing efficiency and improved cooling efficiency. Background Technology

[0002] Recently, demand for portable electronic products (such as laptops, cameras and mobile phones) has increased rapidly, and there is serious development on electric vehicles, energy storage batteries, robots, satellites, etc., and active research is being conducted on high-performance rechargeable batteries that can be repeatedly charged and discharged.

[0003] Currently commercially available rechargeable batteries include nickel-cadmium batteries, nickel-metal hydride batteries, nickel-zinc batteries, lithium rechargeable batteries, and so on. Among these rechargeable batteries, lithium rechargeable batteries are more favored than nickel-based batteries due to their advantages such as the absence of memory effect, allowing for free charging and discharging, very low self-discharge rate, and high energy density.

[0004] Lithium-ion secondary batteries primarily use lithium-based oxides and carbonaceous materials as the positive electrode active material and negative electrode active material, respectively. Furthermore, a lithium-ion secondary battery includes an electrode assembly and an external component. The electrode assembly comprises a positive electrode plate coated with a positive electrode active material and a negative electrode plate coated with a negative electrode active material, with a separator inserted between the positive and negative electrode plates. The external component (i.e., the battery casing) hermetically houses the electrode assembly and the electrolyte together.

[0005] In addition, based on the shape of the external components of lithium secondary batteries, they can be classified into can-type secondary batteries and pouch-type secondary batteries. In can-type secondary batteries, the electrode assembly is embedded in a metal can, while in pouch-type secondary batteries, the electrode assembly is embedded in a pouch made of aluminum laminate.

[0006] Here, the metal can containing the electrode assembly in the can-type secondary battery can be manufactured in a cylindrical shape. The can-type secondary battery can be used to configure a battery module, the battery module including a module housing for accommodating multiple secondary batteries and a busbar configured to electrically connect the multiple secondary batteries.

[0007] In addition, conventional battery modules include a heat sink to dissipate heat generated from the module housing containing multiple secondary batteries to the outside. Specifically, in conventional technology, a cooling plate for heat conduction is typically inserted between the module housing and the heat sink.

[0008] However, a cooling plate inserted between the module housing and the heat sink may lengthen the heat transfer path and reduce heat conduction efficiency. Additionally, if the cooling plate is welded separately to the module housing and the heat sink, the component may experience thermal deformation. Furthermore, welding multiple components to each other presents a problem of reduced manufacturing efficiency. Summary of the Invention

[0009] Technical issues

[0010] This disclosure is designed to address the problems of the related technologies, and therefore aims to provide a battery module with improved manufacturing efficiency and improved cooling efficiency.

[0011] These and other objectives and advantages of this disclosure will become apparent from the following detailed description and will become more apparent from exemplary embodiments thereof. Furthermore, it will be readily understood that the objectives and advantages of this disclosure may be achieved by means shown in the appended claims and combinations thereof.

[0012] Technical solution

[0013] In one aspect of this disclosure, a battery module is provided, the battery module comprising:

[0014] Multiple secondary batteries; and

[0015] A cooling component is configured such that the plurality of secondary batteries are mounted to the cooling component.

[0016] The cooling component includes:

[0017] An upper frame, which is a plate-shaped structure of a predetermined length, is provided for mounting the plurality of secondary batteries to one surface of the upper frame; and

[0018] The lower frame is connected to the other surface of the upper frame and has a coolant channel configured to allow coolant to flow through it.

[0019] Additionally, the coolant channel of the lower frame

[0020] It may have a concave-convex structure, wherein the concave-convex structure has a portion protruding toward the upper frame.

[0021] The portion of the concave-convex structure that protrudes toward the upper frame

[0022] It can be attached to the other surface of the upper frame.

[0023] In addition, the two sides of the upper frame and the two sides of the lower frame can be welded to each other.

[0024] In addition, the two sides of the upper frame and the two sides of the lower frame,

[0025] They can be connected to each other by means of mechanical coupling.

[0026] In addition, the cooling component may also include sidewalls, which are respectively disposed at two side ends of the upper frame and extend upward from the two side ends of the upper frame.

[0027] Additionally, the cooling component may also include a clamping component configured to secure the two side ends of the upper frame to the two side ends of the lower frame.

[0028] Additionally, the clamping member may include:

[0029] The body portion is configured to extend along one surface of the upper frame and is arranged to be in close contact with the upper frame; and

[0030] The fixing part bends from the body part to surround the two ends of the upper frame and the two ends of the lower frame.

[0031] In addition, the aforementioned upper frame,

[0032] It may include a guide protrusion that protrudes from the upper surface of the upper frame toward the secondary battery to guide the installation position of the plurality of secondary batteries.

[0033] In another aspect of this disclosure, a battery pack is also provided, which includes at least one of the aforementioned battery modules.

[0034] In another aspect of this disclosure, an electronic device is provided, which includes the aforementioned battery pack.

[0035] Beneficial effects

[0036] According to embodiments of this disclosure, since the cooling component has an upper frame and a lower frame, the lower frame is connected to the upper frame on which a plurality of secondary batteries are mounted and has a coolant channel, the plurality of secondary batteries can directly contact the upper surface of the cooling component without any additional heat-conducting components inserted between the plurality of secondary batteries and the cooling component, thereby improving cooling efficiency.

[0037] Furthermore, according to another embodiment of this disclosure, since the lower frame of the cooling component is configured to attach to another surface of the upper frame, the cooling component can be assembled without separate fasteners. Therefore, in this disclosure, the number of parts can be reduced and manufacturing time shortened compared to conventional techniques, thereby reducing manufacturing costs.

[0038] Furthermore, according to another embodiment of this disclosure, since the two sides of the upper frame and the two sides of the lower frame are welded to each other, the bonding strength between the upper frame and the lower frame can be further increased. Therefore, in this disclosure, when an external shock occurs while the battery module is in use, leakage of coolant through the gap between the upper frame and the lower frame due to cracks generated at the cooling components can be further prevented. Attached Figure Description

[0039] The accompanying drawings illustrate preferred embodiments of the present disclosure and are used together with the foregoing disclosure to provide a further understanding of the technical features of the present disclosure; therefore, the present disclosure should not be construed as limited to the drawings.

[0040] Figure 1 This is a perspective view schematically showing a battery module according to an embodiment of the present disclosure.

[0041] Figure 2 This is an exploded perspective view schematically showing the components of a battery module according to an embodiment of the present disclosure.

[0042] Figure 3 This is a schematic illustration of the battery module along... Figure 2 A vertical sectional view taken from line C-C'.

[0043] Figure 4 This is a perspective view schematically showing some components of a battery module according to another embodiment of the present disclosure.

[0044] Figure 5 This is a schematic vertical cross-sectional view of some components of a battery module according to yet another embodiment of the present disclosure.

[0045] Figure 6 This is a perspective view schematically showing some components of a battery module according to yet another embodiment of the present disclosure.

[0046] Figure 7 This is a schematic perspective view of a battery module according to yet another embodiment of the present disclosure.

[0047] Figure 8 This is a perspective view schematically showing some components of a battery module according to yet another embodiment of the present disclosure.

[0048] Figure 9 It is shown schematically. Figure 8 A vertical cross-sectional view of some components of the battery module.

[0049] Figure 10 This is a schematic plan view showing some components of a battery module according to yet another embodiment of the present disclosure.

[0050] Figure 11 This is a schematic illustration of the battery module along... Figure 10 A horizontal sectional view taken from line A-A'.

[0051] [Symbol Explanation]

[0052] 200: Battery module; 220: Cooling component

[0053] 221, 226: Upper frame, lower frame

[0054] D: Coolant passage K: Concave-convex structure

[0055] 210: Secondary battery

[0056] 221w: Side wall; 230: Clamping component

[0057] 231, 233: Main body and fixing part

[0058] P: Guiding protrusion Detailed Implementation

[0059] Preferred embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. Before the description, it should be understood that the terminology used in this specification and the appended claims should not be considered as limited to its common or dictionary meanings, but should be interpreted based on the principle of allowing the inventor to appropriately define the terminology to obtain the best interpretation, and based on the meaning and concept corresponding to the technical solutions of the present disclosure.

[0060] Therefore, the description presented herein is merely a preferred example for illustrative purposes and is not intended to limit the scope of this disclosure. It should be understood that other equivalent substitutions and modifications may be made to this disclosure without departing from its scope.

[0061] Figure 1 This is a schematic perspective view of a battery module according to an embodiment of the present disclosure. Additionally, Figure 2 This is an exploded perspective view schematically showing components of a battery module according to an embodiment of the present disclosure. For reference, Figure 1 The X-axis in the diagram refers to the left-right direction, the Y-axis refers to the front-back direction, and the Z-axis refers to the up-down direction.

[0062] Reference Figure 1 and Figure 2 According to embodiments of the present disclosure, the battery module 200 may include a plurality of secondary batteries 210 and a cooling component 220.

[0063] Here, the secondary battery 210 may be a cylindrical battery cell. In the cylindrical battery cell, a negative electrode terminal 211b may be formed at the upper part (upper corner) of the battery can. The cylindrical battery cell may have a battery cap disposed at the upper part of the cylindrical battery cell, and a positive terminal 211a may be formed at the center of the battery cap. The battery can may include electrode assemblies (not shown) housed within the battery can. The battery can and the battery cap may be electrically insulated from each other. Since the configuration of the cylindrical battery cell is well known to those skilled in the art at the time of filing this application, it will not be described in detail here.

[0064] Furthermore, the multiple secondary batteries 210 can be spaced apart from each other by, for example, 3 mm. Additionally, the multiple secondary batteries 210 in one row and those in another row can be positioned differently in the front-back (X-axis) direction. Furthermore, the multiple secondary batteries 210 in one row and those in another row can be positioned differently in the left-right direction. In other words, the multiple secondary batteries 210 can be considered as a whole arranged in a zigzag pattern in the front, back, left, and right directions.

[0065] Additionally, the plurality of secondary batteries 210 can be electrically connected in series or parallel via a busbar (not shown) having a conductive metal. The busbar may contain at least one of, for example, copper, nickel, and aluminum. For example, the busbar may be in the form of wiring. The busbar can connect the positive terminal 211a (located on the battery cover at the top of the secondary battery 210) Figure 1 The positive direction of the Z-axis in the battery can and / or the negative electrode terminal 211b formed on the battery can are electrically connected to each other.

[0066] At the same time, refer to again Figure 1 and Figure 2 The cooling component 220 may include an upper frame 221 and a lower frame 226. Specifically, the upper frame 221 may be a plate with a predetermined length, so that multiple secondary batteries 210 can be mounted on one surface (upper surface) of the upper frame 221.

[0067] Additionally, the lower frame 226 may have an upper portion corresponding to the planar size of the upper frame 221. The lower frame 226 may be connected to another surface of the upper frame 221. The lower frame 226 may include a coolant channel D, which is configured to allow coolant to flow through it.

[0068] Specifically, the cooling component 220 may have an inlet I and an outlet O. The inlet I may be configured to inject cooling coolant from an external device. The outlet O may be configured to discharge coolant that has absorbed heat from the plurality of secondary batteries 210 toward the external device. Coolant channels D may be connected to the inlet I and the outlet O, respectively.

[0069] That is, one end of the coolant passage D may be connected to the inlet I. The other end of the coolant passage D may be connected to the outlet O. The coolant passage D may include a movement path and a barrier W, the movement path being configured to project downwards to form an empty space through which the coolant can flow, and the barrier W being configured to project upwards to partition the movement path. Here, the coolant may be, for example, water.

[0070] Therefore, according to this configuration of the present disclosure, since the cooling member 220 is connected to the upper frame 221 on which a plurality of secondary batteries 210 are mounted and the coolant channel is provided to the lower frame 226, the plurality of secondary batteries 210 can directly contact the upper surface of the cooling member 220 without having any additional heat-conducting material inserted between the plurality of secondary batteries 210 and the cooling member 220, thereby improving cooling efficiency.

[0071] Furthermore, the upper frame 221 can be manufactured using a pressing method, making it less susceptible to thermal deformation caused by welding or other processes. For example, the upper frame 221 can be made of metal materials such as steel, aluminum, and stainless steel. In other words, since the upper frame 221 is manufactured using a pressing method, severe thermal deformation is avoided. Therefore, in this disclosure, since the heat generated by the charging and discharging of the battery module 200 is unlikely to cause thermal deformation of the upper frame 221, the contact area between the multiple secondary batteries 210 and one surface of the upper frame 221 can be prevented from decreasing.

[0072] Alternatively, the lower frame 226 can be manufactured using an injection method. The lower frame 226 can be made of a plastic material, such as engineering plastic. Since some components of the cooling structure are made of plastic, which is a lightweight material, the weight of the battery module 200 can be reduced.

[0073] Figure 3 This is a schematic illustration of the battery module along... Figure 2 A vertical sectional view taken from line C-C'.

[0074] Refer to together Figure 3 and Figure 1 and Figure 2The coolant channel D of the lower frame 226 may have an uneven structure K, which has a portion 226a protruding toward the upper frame 221 in cross-section. Here, the portion 226a protruding toward the upper frame 221 may be the upper surface of each of the barrier W of the lower frame 226 and the outer peripheral portion of the lower frame 226.

[0075] More specifically, the portion 226a of the protruding structure K towards the upper frame 221 can be configured to bond to another surface (lower surface) of the upper frame 221. In this case, an adhesive can be used to achieve the bonding. The adhesive is not limited to a specific material, and can be, for example, glue or hot-melt resin. For example, the adhesive may include at least one of polyamide resin, polyimide resin, epoxy resin, and acrylic resin.

[0076] Therefore, according to this configuration of the present disclosure, since the lower frame 226 of the cooling member 220 is configured to attach to the other surface of the upper frame 221, the cooling member 220 can be assembled without separate fasteners. Thus, in this disclosure, the number of parts can be reduced and manufacturing time shortened compared to conventional techniques, thereby reducing manufacturing costs.

[0077] Figure 4 This is a perspective view schematically showing some components of a battery module according to another embodiment of the present disclosure.

[0078] Reference Figure 4 The upper frame 221 and the lower frame 226 are joined together using only adhesive. Figure 3 The cooling component 220 shown is different. Figure 4 The cooling component 220 shown may have a portion in which the upper frame 221 and the lower frame 226 are joined (joined) together by welding.

[0079] For example, such as Figure 4 As shown, Figure 4 The cooling component 220 may have a portion J1 in which two sides of the upper frame 221 and two sides of the lower frame 226 are joined to each other by at least one of spot welding, arc welding, and laser welding. However, it is not limited to welding methods and any known applicable welding method may be used.

[0080] Therefore, according to this configuration of the present disclosure, since the two sides of the upper frame 221 and the two sides of the lower frame 226 are welded to each other, the bonding strength between the upper frame 221 and the lower frame 226 can be further increased. Thus, in this disclosure, when an external impact occurs while the battery module 200 is in use, leakage of coolant through the gap between the upper frame 221 and the lower frame 226 due to cracks generated at the cooling member 220 can be further prevented.

[0081] Figure 5 This is a schematic vertical cross-sectional view of some components of a battery module according to yet another embodiment of the present disclosure.

[0082] Reference Figure 5 The upper frame 221 and the lower frame 226 are joined together using only adhesive. Figure 3 The cooling component 220 shown is different. Figure 5 The cooling component 220 shown may have a portion in which the upper frame 221 and the lower frame 226 are connected to each other by mechanical engagement. For example, as Figure 5 As shown, the two sides of the upper frame 221 and the two sides of the lower frame 226 can be connected to each other by riveting, which is a mechanical joining method. Riveting is the process of joining two components to each other by passing rivets R through the upper frame 221 and the lower frame 226 respectively.

[0083] Figure 6 This is a perspective view schematically showing some components of a battery module according to yet another embodiment of the present disclosure.

[0084] Reference Figure 6 The two sides of the upper frame 221 and the two sides of the lower frame 226 may have a portion J2 in which the upper frame 221 and the lower frame 226 are connected to each other by at least one of TOX cinching and clamping. Figure 6 As shown, in the portion J2 where the upper frame 221 and the lower frame 226 are joined to each other, a space J that is recessed inward by means of TOX fastening or fastening can be formed.

[0085] For example, by means of interlocking, some parts of the upper frame 221 and some parts of the lower frame 226 can be joined together in an overlapping state by applying a cold forming method. In addition, TOX interlocking is a process in which some parts of the upper frame 221 and some parts of the lower frame 226 are plastically deformed and joined together in an overlapping state.

[0086] Therefore, according to this configuration of the present disclosure, since the two sides of the upper frame 221 and the two sides of the lower frame 226 are connected to each other by a mechanical joining method, the bonding force between the upper frame 221 and the lower frame 226 can be further enhanced. Thus, in this disclosure, when an external impact occurs while the battery module 200 is in use, leakage of coolant through the gap between the upper frame 221 and the lower frame 226 due to cracks generated in the cooling member 220 can be further prevented.

[0087] Figure 7 This is a schematic perspective view of a battery module according to yet another embodiment of the present disclosure.

[0088] Reference Figure 7 , Figure 7 The cooling member 220A of the battery module 200A shown may further include sidewalls 221w respectively disposed at two side ends of the upper frame 221. The sidewalls 221w may have a shape extending upward from each of the two side ends of the plate-shaped upper frame 221. The sidewalls 221w may be integrally formed with the upper frame 221. For example, as... Figure 7 As shown, the upper frame 221 of the cooling member 220 of this disclosure may include a left side wall 221w and a right side wall 221w respectively disposed at the left and right ends in the X direction. The side wall 221w may have a shape that extends in the front-back direction (Y-axis direction).

[0089] Therefore, according to this configuration of the present disclosure, since sidewalls 221w extending upward from the two side ends of the upper frame 221 are further provided, bending of the cooling member 220 in the vertical direction can be prevented. That is, the sidewalls 221w can be used as reinforcing members to enhance the rigidity of the cooling member 220 to prevent the cooling member 220 from bending due to the plurality of secondary batteries 210 mounted on the cooling member 220.

[0090] Figure 8 This is a perspective view schematically showing some components of a battery module according to yet another embodiment of this disclosure. Additionally, Figure 9 It is shown schematically. Figure 8 A vertical cross-sectional view of some components of the battery module.

[0091] Reference Figure 8 and Figure 9 , Figure 8The cooling component 220 of the battery module shown may also include a clamping component 230. The clamping component 230 may be configured to secure two side ends of the upper frame 221 and two side ends of the lower frame 226 to each other. Specifically, the clamping component 230 may include a body portion 231 and a fixing portion 233. The body portion 231 may extend along one surface of the upper frame 221 and is configured to be in close contact with one surface of the upper frame 221. The fixing portion 233 may be bent from the body portion 231 to surround the two ends of the upper frame 221 and the two ends of the lower frame 226.

[0092] For example, such as Figure 9 As shown, the body portion 231 of the clamping member 230 may have a shape that extends along the upper surface of the upper frame 221 in the left-right direction (X-axis direction). The body portion 231 may be in close contact with the upper surface of the upper frame 221 to limit the deformation of the upper frame 221 and thus prevent the upper frame 221 from bending.

[0093] For example, such as Figure 9 As shown, the fixing portion 233 of the clamping member 230 may include a first curved portion 233a and a second curved portion 233b to surround the two ends of the upper frame 221 and the two ends of the lower frame 226. The first curved portion 233a may be a portion that bends downward from the left and right ends of the body portion 231. The second curved portion 233b may be a portion that bends inward (towards the center) from the lower end of the first curved portion 233a.

[0094] Therefore, according to this configuration of the present disclosure, since the clamping member 230 is further provided, the body portion 231 of the clamping member 230 serves as a reinforcing member to enhance rigidity, so as to prevent the cooling member 220 from bending due to the plurality of secondary batteries 210 mounted on the cooling member 220.

[0095] Furthermore, the fixing portion 233 of the clamping member 230 can be bent to surround the two side ends of the upper frame 221 and the two side ends of the lower frame 226, thereby preventing the two side ends of the upper frame 221 from separating from the two side ends of the lower frame 226. Therefore, in this disclosure, by means of the clamping member 230, when an external impact occurs while the battery module 200 is in use, leakage of coolant through the gap between the upper frame 221 and the lower frame 226 due to cracks generated at the cooling member 220 can be further prevented.

[0096] Figure 10 This is a schematic plan view showing some components of a battery module according to yet another embodiment of the present disclosure. Additionally, Figure 11 This is a schematic illustration of the battery module along... Figure 10 A horizontal sectional view taken from line A-A'.

[0097] Reference Figure 10and Figure 11 , Figure 10 The cooling component 220B shown may include a plurality of guide protrusions P disposed on the upper surface of the upper frame 221. The guide protrusions P may have a shape that protrudes from the upper surface of the upper frame 221 toward the secondary battery 210 (in...). Figure 1 (in the positive direction of the Z-axis) to guide the installation position of the plurality of secondary batteries 210.

[0098] In other words, the guide protrusion P may be circular in shape in a plane to surround the outer periphery of the lower end of the secondary battery 210. Furthermore, a secondary battery 210 may be installed inside the circular guide protrusion P.

[0099] Therefore, according to this configuration of the present disclosure, since the guide protrusion P is provided at the upper frame 221 of the cooling member 220B, the plurality of secondary batteries 210 can be easily placed in the correct position, and the contact area between the upper frame 221 and the plurality of secondary batteries 210 can be increased, thereby effectively enhancing the cooling efficiency of the cooling member.

[0100] Meanwhile, the battery pack (not shown) according to embodiments of this disclosure includes at least one battery module 200. Additionally, the battery pack may also include various components (not shown) for controlling the charging and discharging of the battery module 200, such as a battery management system (BMS), a current sensor, and a fuse.

[0101] Meanwhile, the electronic device (not shown) according to embodiments of this disclosure includes at least one of the aforementioned battery modules 200. The electronic device may also include a device housing (not shown) and a display unit, the device housing having a receiving space for accommodating the battery module 200, and the user can check the charging status of the battery module 200 using the display unit.

[0102] Additionally, battery packs according to embodiments of this disclosure can be provided for vehicles such as electric vehicles or hybrid electric vehicles. That is, a vehicle according to embodiments of this disclosure can be equipped with a battery pack including at least one battery module 200 according to the above embodiments of this disclosure mounted in the vehicle body.

[0103] Furthermore, even though the specification uses terms indicating directions such as up, down, left, right, front, and back, it is obvious to those skilled in the art that these terms only indicate relative positions for ease of interpretation and can vary based on the position of the observer or object.

[0104] This disclosure has been described in detail. However, it should be understood that various variations and modifications within the scope of this disclosure will become apparent to those skilled in the art from this detailed description, and therefore, although the detailed description and specific examples indicate preferred embodiments of this disclosure, they are given by way of example only.

[0105] This application claims priority to Korean Patent Application No. 10-2020-0061863, filed in Korea on May 22, 2020, the disclosure of which is incorporated herein by reference.

Claims

1. A battery module, the battery module comprising: Multiple secondary batteries; as well as A cooling component configured such that the plurality of secondary batteries are mounted to the cooling component. The cooling component includes: An upper frame, which is a plate-shaped structure of a predetermined length, is provided for mounting the plurality of secondary batteries to one surface of the upper frame; and A lower frame, which is connected to another surface of the upper frame, has coolant channels configured to allow coolant to flow through them. The cooling component further includes a clamping component configured to fix the two side ends of the upper frame and the two side ends of the lower frame to each other. The clamping member includes: A body portion, the body portion being configured to extend along said one surface of the upper frame and being arranged to be in close contact with said one surface of the upper frame; and The fixing part bends from the body part to surround the two ends of the upper frame and the two ends of the lower frame. When the battery module is subjected to an external impact while in use, the clamping member prevents the coolant from leaking through the gap between the upper and lower frames due to cracks in the cooling member.

2. The battery module according to claim 1, in, The coolant channel of the lower frame has an uneven structure, the uneven structure having a portion protruding toward the upper frame, and The portion of the concave-convex structure that protrudes toward the upper frame is attached to the other surface of the upper frame.

3. The battery module according to claim 2, in, The portion of the convex-concave structure that protrudes toward the upper frame is bonded to the other surface of the upper frame using an adhesive.

4. The battery module according to claim 1, in, The two sides of the upper frame are welded to the two sides of the lower frame.

5. The battery module according to claim 1, in, The two sides of the upper frame and the two sides of the lower frame are connected to each other by mechanical engagement.

6. The battery module according to claim 1, in, The cooling component also includes sidewalls, which are respectively disposed at the two side ends of the upper frame and extend upward from the two side ends of the upper frame.

7. The battery module according to claim 1, wherein, The fixing portion of the clamping member includes a first curved portion and a second curved portion to surround the two ends of the upper frame and the two ends of the lower frame.

8. The battery module according to claim 7, wherein, The first curved portion is a portion that bends downward from the left and right ends of the main body portion, and the second curved portion is a portion that bends inward from the lower end of the first curved portion.

9. The battery module according to claim 1, in, The upper frame includes a guide protrusion that protrudes from the upper surface of the upper frame toward the secondary battery to guide the installation position of the plurality of secondary batteries.

10. A battery pack comprising at least one battery module according to any one of claims 1 to 9.

11. An electronic device comprising the battery pack according to claim 10.

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