Temperature sensing assembly and battery module including the same

Abstract

A temperature sensing assembly according to an embodiment of the present invention may comprise: a substrate; the temperature sensor is arranged on the base plate; a bridge member coupled to the substrate and having a hole facing the temperature sensor; and a compression member that is disposed between the bridge and the substrate. A portion of the compression member may be located on one side of the temperature sensor and another portion of the compression member may be located on the other side of the temperature sensor.

Description

Technical Field

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Korean Patent Application No. 10-2022-0070939 filed on June 10, 2022 and Korean Patent Application No. 10-2023-0048466 filed on April 12, 2023, which are hereby incorporated by reference in their entirety. Technical Field

[0004] The present invention relates to a temperature sensing assembly for sensing the temperature of a unit stack, and a battery module including the temperature sensing assembly. Background Art

[0005] In modern society, with the daily use of portable devices such as mobile phones, laptops, camcorders, and digital cameras, the development of technology in the field related to the above mobile devices is actively underway. In addition, rechargeable and dischargeable secondary batteries used as power sources for electric vehicles (EVs), hybrid electric vehicles (HEVs), plug-in hybrid electric vehicles (P-HEVs), etc., have been proposed as a solution to problems such as air pollution caused by the use of fossil fuels by existing gasoline vehicles, etc., and therefore, the demand for the development of secondary batteries is increasing.

[0006] Currently commercialized secondary batteries include nickel-cadmium batteries, nickel-metal hydride batteries, nickel-zinc batteries, lithium secondary batteries, etc. Among these secondary batteries, lithium secondary batteries have attracted people's interest because they can be freely charged and discharged due to a small memory effect compared with nickel-based secondary batteries, and have a very low self-discharge rate and high energy density.

[0007] In such lithium secondary batteries, lithium-based oxides and carbon materials are mainly used as positive electrode active materials and negative electrode active materials, respectively. The lithium secondary battery includes: an electrode assembly, in which a positive electrode plate and a negative electrode plate coated with a positive electrode active material and a negative electrode active material, respectively, are arranged with a separator therebetween; and an outer material (i.e., a battery case) that seals and accommodates the electrode assembly together with an electrolyte.

[0008] Generally, lithium secondary batteries may be classified into can type secondary batteries in which an electrode assembly is embedded in a metal can and pouch type secondary batteries in which an electrode assembly is embedded in a pouch made of an aluminum laminate, according to the shape of an external material.

[0009] In a secondary battery for small-sized equipment, two or three battery cells are provided, but in a secondary battery for medium to large-sized equipment such as a vehicle, a battery module in which a plurality of battery cells are electrically connected to each other is used.

[0010] In the battery module, a plurality of battery cells are connected in parallel or in series to provide a battery cell stack, thereby increasing capacity and output. In addition, one or more battery modules may be installed together with various control and protection systems such as a battery management system (BMS) and a cooling system to provide a battery pack.

[0011] When overvoltage, overcurrent or overheating occurs in a battery cell included in a battery module, this is very problematic in terms of the safety and operating efficiency of the battery module. For example, when the pressure or temperature of the battery increases, the decomposition reaction of the active material and multiple side reactions proceed, and therefore, the temperature of the battery rises rapidly. This rapid temperature rise re-accelerates the reaction between the electrolyte and the electrode. Eventually, thermal runaway occurs in which the battery temperature rises rapidly, and when the temperature rises to a certain level or higher, a fire of the battery may occur, and the battery cell and the battery module including the battery cell explode due to the increase in the internal pressure of the battery.

[0012] Therefore, a device for detecting temperature changes of the battery cells is required, and thus, a temperature sensor such as a thermistor is provided in the battery module to check and control the operating status in real time or at fixed intervals. Summary of the invention

[0013] Technical issues

[0014] An object of the present invention to solve the above-mentioned problems is to provide a temperature sensing assembly and a battery module including the same, which prevents a temperature sensor from being damaged and has improved accuracy and reliability.

[0015] Technical Solution

[0016] A temperature sensing assembly according to an embodiment of the present invention may include: a substrate; a temperature sensor mounted on the substrate; a bridge member connected to the substrate and defining a hole facing the temperature sensor in the bridge member; and a compression member disposed between the bridge member and the substrate on each of two sides of the temperature sensor.

[0017] The bridge may be coupled to an upper side of the base plate.

[0018] The bridge may include a body portion to which the base plate is coupled, and an extension portion extending from the body portion, spaced apart from the base plate by a predetermined distance, and contacting the compression member.

[0019] A hole may be defined in the extension portion.

[0020] The base plate may include: a coupling portion coupled to the bridge; and a mounting portion spaced apart from the bridge by a predetermined distance and on which the temperature sensor is mounted.

[0021] An adhesive layer may be provided between the coupling portion and the bridge.

[0022] The base plate may further include an inclined portion connecting the coupling portion to the mounting portion and disposed to be inclined with respect to the mounting portion.

[0023] A compression member may be coupled to each of the base plate and the bridge.

[0024] The hole does not overlap the compression member in a penetration direction of the hole.

[0025] A battery module according to an embodiment of the present invention may include: a housing; a unit stack, which is accommodated in the housing and includes a plurality of battery cells arranged parallel to each other; and a temperature sensing assembly, which senses the temperature of the unit stack. The temperature sensing assembly may include: a substrate, which is disposed above the unit stack; a temperature sensor, which is mounted on the substrate; a bridge, which is coupled to the substrate and defines a hole facing the temperature sensor in the bridge; and a compression member, which is disposed between the bridge and the substrate on each of the two sides of the temperature sensor.

[0026] The battery module may further include a bus bar frame on which a bus bar connected to the plurality of battery cells is mounted. The bridge may be pivotably connected to the bus bar frame.

[0027] At least a portion of the temperature sensing assembly may be disposed between the upper plate of the housing and the unit stack.

[0028] Beneficial Effects

[0029] According to a preferred embodiment of the present invention, even if the unit stack expands during the assembly process of the battery module, or pressure is applied to the substrate due to tolerance, etc., the temperature sensor can be prevented from being damaged by the compression member, and the substrate can be maintained in a state adjacent to or in close contact with the unit stack. Therefore, the accuracy and reliability of the temperature sensor can be improved.

[0030] In addition, the compression member may not interfere with the temperature sensor, and the hole of the bridge may be defined to face the temperature sensor so that the temperature sensor enters the hole even if the compression member is over-compressed. Therefore, the temperature sensor can be prevented from being damaged.

[0031] Furthermore, effects that can be easily predicted by those skilled in the art from the configuration according to the preferred embodiments of the present invention can be included. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The following drawings attached to this specification illustrate preferred embodiments and functions of the present invention to further understand the technical spirit of the present invention and the detailed description of the present invention. The present invention should not be interpreted as being limited to the drawings.

[0033] Figure 1 is a perspective view illustrating an appearance of a battery module according to an embodiment of the present invention.

[0034] Figure 2 yes Figure 1 An exploded perspective view of a battery module illustrated in FIG.

[0035] Figure 3 is a view illustrating a temperature sensing assembly provided in a battery module according to an embodiment of the present invention.

[0036] Figure 4 is an exploded perspective view of a temperature sensing assembly according to an embodiment of the present invention.

[0037] Figure 5 is a plan view of a temperature sensing assembly according to an embodiment of the present invention.

[0038] Figure 6 is a schematic diagram for explaining the operation of a temperature sensing assembly according to an embodiment of the present invention.

[0039] Figure 7 and Figure 8 is a view of a temperature sensing assembly according to a comparative example.

[0040] Fig. 9 is an exploded perspective view of a temperature sensing assembly according to another embodiment of the present invention. DETAILED DESCRIPTION

[0041] Hereinafter, the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention. However, the present invention can be embodied in different forms and should not be construed as being limited to the embodiments described herein.

[0042] In order to clearly describe the present invention, parts that are irrelevant to the description or detailed description of related known technologies that may unnecessarily confuse the subject matter of the present invention will be excluded. Throughout the specification, like reference numerals refer to like elements.

[0043] Furthermore, the terms or words used in the specification and claims should not be restrictively interpreted as ordinary meanings or dictionary-based meanings, but should be interpreted as meanings and concepts consistent with the scope of the present invention based on the principle that the inventor can appropriately define the concepts of the terms to best describe and explain his or her invention.

[0044] Figure 1is a perspective view illustrating an appearance of a battery module according to an embodiment of the present invention. Figure 2 yes Figure 1 An exploded perspective view of a battery module illustrated in FIG.

[0045] The battery module 100 according to the embodiment of the present invention may include a unit stack 110 and a case 120 .

[0046] The unit stack 110 may include a plurality of battery cells 111 disposed in parallel with each other. The unit stack 110 may be accommodated in a case 120.

[0047] A plurality of battery cells 111 may be arranged to face each other in a first direction (e.g., a direction parallel to the Y axis). In more detail, a plurality of battery cells 111 may be stacked in the first direction. In addition, each battery cell 111 may be arranged to be elongated in a second direction (e.g., a direction parallel to the X axis) perpendicular to the first direction. The first direction may be a direction parallel to the full width direction of the housing 120, and the second direction may be a direction parallel to the full length direction of the housing 120.

[0048] Each battery cell 111 may be a pouch-type battery cell. In a pouch-type battery cell, the number of battery cells stacked per unit area can be maximized, so the energy density of the battery module 100 can be increased. The battery cell 111 arranged in a pouch type can be manufactured by accommodating an electrode assembly including a positive electrode, a negative electrode, and a separator in a unit housing in which a laminate sheet is molded, and then hot-melting and sealing the unit housing. However, the battery cell 111 is not necessarily arranged in a pouch type, and it is obvious that the battery cell 11 may be arranged in a square type, a cylindrical type, or various other types at a level that realizes the storage capacity required by the device on which the battery cell 111 will be installed in the future.

[0049] Each of the battery cells 111 may be provided with a pair of electrode leads 112. The pair of electrode leads 112 may protrude in opposite directions and may protrude parallel to the longitudinal direction of the battery cell 111. However, the embodiment of the present invention is not limited thereto, and the pair of electrode leads 112 may also protrude in parallel with each other in the same direction.

[0050] In addition, the unit stack 110 may be provided with at least one heat dissipation pad. The heat dissipation pad may be provided between the plurality of battery cells 111 or provided to cover the outermost battery cell 111.

[0051] The outer case 120 may provide an appearance of the battery module 100. The outer case 120 may have a metal material having high rigidity.

[0052] The housing 120 may have various structures. As an example, the housing 120 may be a single frame. The single frame may be a metal plate in which an upper plate 121, a lower plate, and a pair of side plates are integrated with each other. As another example, the housing 120 may have a structure in which a U-shaped frame and an upper plate 121 are connected to each other. The U-shaped frame may be a metal plate in which a lower plate and a side plate are connected or integrated with each other. In addition, the structure of the housing 120 may be set to a structure in which L-shaped frames are connected to each other, and may be provided as various structures not described in the aforementioned examples.

[0053] The housing 120 may have an internal space, and the unit stack 110 may be accommodated in the internal space. In more detail, the housing 120 may include an upper plate 121, a lower plate, and a pair of side plates. In the housing 120, each of the two ends in the full length direction may be open and may be covered by an end plate 140 described later.

[0054] The battery module 100 may further include a bus bar frame 130 and an end plate 140 .

[0055] The bus bar frame 130 may be provided at each of both sides in the full length direction of the unit stack 110. At least one bus bar 131 may be mounted on the bus bar frame 130, and each of the bus bars 131 may be connected to the electrode lead 112 of the battery cell 111. The bus bar 131 may be a portion for electrically connecting the plurality of battery cells 111 to an external device.

[0056] The end plate 140 may be disposed at the outer side of the bus bar frame 130. That is, the bus bar frame 130 may be disposed between the unit laminate 110 and the end plate 140.

[0057] The end plate 140 may be coupled to the housing 120. The end plate 140 may cover each of the two open ends of the housing 120. An opening 140h may be defined in the end plate 140, and electrical connection of the bus bar 131 may be achieved through the opening 140h. That is, the bus bar 131 of the battery module 100 may be electrically connected to another battery module 100 or a battery disconnect unit (BDU) through the opening 140h.

[0058] Figure 3 is a view illustrating a temperature sensing assembly provided in a battery module according to an embodiment of the present invention. Figure 4 is an exploded perspective view of a temperature sensing assembly according to an embodiment of the present invention. Figure 5 is a plan view of a temperature sensing assembly according to an embodiment of the present invention. Figure 6 is a schematic diagram for explaining the operation of a temperature sensing assembly according to an embodiment of the present invention.

[0059] The battery module 100 may include a temperature sensing assembly 10 that senses the temperature of the cell stack 110 .

[0060] At least a portion of the temperature sensing assembly 10 may be disposed between the upper plate 121 of the housing 120 and the unit stack 110. That is, at least a portion of the temperature sensing assembly 10 may be disposed above the unit stack 110, and may be disposed below the upper plate 121. The temperature sensing assembly 10 may be pressed to or allowed to be in close contact with the side of the unit stack 110 by the upper plate 121 or a separate component disposed at the lower portion of the upper plate 121.

[0061] The temperature sensing assembly 10 may be connected to the bus bar frame 130. In more detail, the temperature sensing assembly 10 may be pivotably connected to the bus bar frame 130. For example, the temperature sensing assembly 10 may be hinged to the bus bar frame 130.

[0062] Therefore, the temperature sensing assembly 10 may reliably come into close contact with the unit stack 110 , and may accurately measure the temperature of the unit stack 110 .

[0063] The temperature sensing assembly 10 may include a substrate 20, a temperature sensor 40 mounted on the substrate 20, a bridge 30 connected to the substrate 20 and defining a hole 34 therein facing the temperature sensor 40, and a compression member 50 disposed between the bridge 30 and the substrate 20.

[0064] The substrate 20 may be disposed above the unit laminate stack 10. The substrate 20 may be disposed to be elongated substantially in the entire length direction of the unit laminate stack 110. The substrate 20 may include a plurality of regions having different inclination angles. The substrate 20 may be disposed as one body, but is not limited thereto.

[0065] The temperature sensor 40 may be mounted on the substrate 20. The temperature sensor 40 may be a device capable of temperature sensing. The temperature sensor 40 may be fixed to the substrate 20 by welding.

[0066] The temperature sensor 40 may include a thermistor. A thermistor is a semiconductor device that uses a phenomenon in which a resistance value changes according to temperature. The thermistor has advantages in that it is small in size and can measure temperature in the case of rapid temperature changes or slight temperature changes.

[0067] The substrate 20 may be a flexible printed circuit board (FPCB). The substrate 20 may be electrically connected to the temperature sensor 40, and may transmit temperature information measured by the temperature sensor 40 to the outside.

[0068] The temperature information measured by the temperature sensor 40 may be transmitted to another device outside the battery module 100. For example, the temperature information measured by the temperature sensor 40 may be transmitted to a battery management system (BMS) outside the battery module 100 for controlling the battery module 100.

[0069] The bridge 30 may be coupled to an upper side of the substrate 20. The bridge 30 may have higher rigidity than the substrate 20 and support the substrate 20.

[0070] The bridge member 30 may be provided to be elongated substantially in the entire length direction of the unit laminate 110. The bridge member 30 may include a plurality of regions having different inclination angles. The bridge member 30 may be provided in one body, but is not limited thereto.

[0071] The bridge 30 may be pivotally connected to the busbar frame 130. In more detail, the bridge 30 may be hinged to the upper end of the busbar frame 130 so as to be pivotable relative to the busbar frame 130. When the bridge 30 is connected to the substrate 20, the bridge 30 may be pivoted together with the substrate 20. The bridge 30 may be pivoted about an axis parallel to the stacking direction of the unit stack 110.

[0072] A hole 34 facing the temperature sensor 40 on the substrate 20 may be defined in the bridge 30. Therefore, even when the substrate 20 is deformed toward the bridge 30, the temperature sensor 40 may be inserted into the hole 34. That is, the temperature sensor 40 may be prevented from interfering with the bridge 30.

[0073] The substrate 20 may include a coupling portion 21 coupled to the bridge 30, and a mounting portion 22 spaced a predetermined distance from the bridge 30 and on which the temperature sensor 40 is mounted. The substrate 20 may further include an inclined portion 23 connecting the coupling portion 21 to the mounting portion 22 and disposed to be inclined relative to the mounting portion 22.

[0074] The bridge 30 may include a body portion 31 to which the base plate 20 is coupled and an extension portion 32 extending from the body portion 31, spaced a predetermined distance from the base plate 20, and in contact with the compression member 50. The bridge 30 may further include a connection portion 33 pivotably connected to the bus bar frame 130.

[0075] The coupling portion 21 of the substrate 20 may be bonded to the bridge 30, and may be accordingly simply coupled to the bridge 30. That is, the adhesive layer 60 may be provided between the coupling portion 21 and the bridge 30.

[0076] The coupling portion 21 may be coupled to the body portion 31 of the bridge 30. The coupling portion 21 of the substrate 20 may be disposed parallel to the body portion 31 of the bridge 30. Therefore, the coupling portion 21 and the body portion 31 may be in close contact and coupled to each other with the adhesive layer 60 therebetween.

[0077] For example, the adhesive layer 60 may be a double-sided tape.

[0078] However, the coupling method between the coupling portion 21 of the substrate 20 and the body portion 31 of the bridge 30 is not limited thereto.

[0079] The mounting portion 22 of the substrate 20 may be spaced apart from the bridge 30 by a predetermined distance. In more detail, the mounting portion 22 may be spaced apart from the extension portion 32 of the bridge 30 by a predetermined distance. Due to the distance, the temperature device 40 and the compression member 50 may be disposed between the substrate 20 and the bridge 30.

[0080] The extension portion 32 of the bridge 30 may extend from the main body portion 31. The extension portion 32 and the main body portion 31 may be disposed parallel to each other or have different inclinations.

[0081] The mounting portion 22 of the base plate 20 may be disposed in parallel to the extending portion 32 of the bridge 30. Therefore, the distance may be uniformly set in the longitudinal direction of the mounting portion 22.

[0082] The temperature sensor 40 may be mounted on the mounting portion 22. The temperature sensor 40 may be fixed to the mounting portion 22 by welding.

[0083] The temperature sensor 40 may face the hole 34 defined in the bridge member 30. In more detail, the hole 34 facing the temperature sensor 40 may be defined in the extension portion 32 of the bridge member 30. Therefore, even when the mounting portion 22 of the substrate 20 is deformed toward the extension portion 32 of the bridge member 30, the temperature sensor 40 may be inserted into the hole 34. That is, the temperature sensor 40 may be prevented from interfering with the extension portion 32 of the bridge member 30.

[0084] The inclined portion 23 of the substrate 20 may be provided between the coupling portion 21 and the mounting portion 22, and connect the coupling portion 21 to the mounting portion 22. The inclined portion 23 may be provided integrally with the coupling portion 21 and the mounting portion 22. Due to the inclined portion 23, an approximate height difference between the coupling portion 21 and the mounting portion 22 may be achieved. Therefore, the coupling portion 21 may be in close contact with the main body portion 31 of the bridge 30, and the mounting portion 22 may be spaced apart from the extension portion 32 of the bridge 30 by a predetermined distance.

[0085] The connection portion 33 of the bridge 30 may have a shape bent downward from the body portion 31. The connection portion 33 may be pivotably connected to the bus bar frame 130.

[0086] The compression member 50 may be disposed between the base plate 20 and the bridge 30. The compression member 50 may be disposed between the mounting portion 22 of the base plate 20 and the extending portion 32 of the bridge 30.

[0087] The compression member 50 may be coupled to each of the base plate 20 and the bridge 30. That is, the compression member 50 may have a bottom surface coupled to the mounting portion 22 of the base plate 20 and a top surface coupled to the extending portion 32 of the bridge 30.

[0088] For example, a lower adhesive layer may be provided between the bottom surface of the compression member 50 and the top surface of the mounting portion 22, and an upper adhesive layer may be provided between the top surface of the compression member 50 and the bottom surface of the extension portion 32. Each of the lower adhesive layer and the upper adhesive layer may be a double-sided tape.

[0089] Therefore, the mounting portion 22 of the substrate 20 and the extending portion 32 of the bridge 30 can be prevented from being inadvertently separated or deformed.

[0090] The compression member 50 may be configured to be compressed when the substrate 20 is deformed toward the bridge 30. The compression member 50 may alleviate deformation of the substrate 20 and prevent the substrate 20 from interfering with the bridge 30. In addition, due to the compression member 50, the durability of the temperature sensing assembly 10 may be improved.

[0091] The compression member 50 may be a compression pad whose material itself has elasticity and is compressed and deformed. In this case, the material of the compression member 50 is not limited, and the compression member 50 may have a material that is elastically deformed by a preset external force. For example, the compression member 50 may have an elastically deformable material (such as sponge or polyurethane foam) and may be compressed between the bridge 30 and the base plate 20.

[0092] However, the embodiments of the present invention are not limited thereto. Similar to a spring or the like, the compression member 50 may be configured to exhibit elasticity due to a shape.

[0093] The compression member 50 may be disposed on both sides of the temperature sensor 40. That is, a portion of the compression member 50 may be disposed on one side of the temperature sensor 40, and another portion of the compression member 50 may be disposed on the other side of the temperature sensor.

[0094] For example, the compression member 50 may include a first compression member 50 disposed at one side of the temperature sensor 40 and a second compression member 50 disposed at the other side of the temperature sensor 40 .

[0095] Therefore, the compression member 50 may not interfere with the temperature sensor 40, and when the compression member 50 is compressed, pressure may be prevented from being applied to the temperature sensor 40. In more detail, even if the unit stack 110 expands during the assembly process of the battery module 100 or pressure is applied to the substrate 20 due to tolerance or the like, the temperature sensor 40 may be prevented from being damaged by the compression member 50, and the substrate 20 may be maintained in a state of being adjacent to or in close contact with the unit stack 110. Therefore, the accuracy and reliability of the temperature sensor 40 may be improved.

[0096] The hole 34 defined in the bridge 30 may not overlap the compression member 50 in the penetration direction of the hole 34. Therefore, the compression member 50 may be prevented from blocking the hole 34, and the temperature sensor 40 may face the hole 34 or enter the hole 34 even when the compression member 50 is compressed.

[0097] Figure 7 and Figure 8 is a view of a temperature sensing assembly according to a comparative example.

[0098] In the temperature sensing assembly 10' according to the comparative example, a hole facing the temperature sensor 40 may not be defined in the bridge 30, and the compression member 50' may cover the temperature sensor 40. That is, the temperature sensor 40 may be buried in the compression member 50'.

[0099] Therefore, there is no problem when the compression member 50 ′ is lightly compressed, but there is a concern that the temperature sensor 40 may be damaged when the compression member 50 ′ is tightly compressed.

[0100] In contrast, as described above, in the temperature sensing assembly 10 according to the present invention, the compression member 50 may not interfere with the temperature sensor 40, and the hole 34 of the bridge 30 may be defined to face the temperature sensor 40, so that even if the compression member 50 is over-compressed, the temperature sensor 40 enters the hole 34. Therefore, the temperature sensor 40 can be prevented from being damaged.

[0101] Fig. 9 is an exploded perspective view of a temperature sensing assembly according to another embodiment of the present invention.

[0102] The above description of the embodiment of the present invention is applicable to the temperature sensing assembly 10 ′ according to another embodiment of the present invention, except for the compression member 50 a .

[0103] The compression members 50a respectively provided at both sides of the temperature sensor 40 may be connected to each other without interfering with the temperature sensor 40. The compression members 50a may be provided as one body.

[0104] The compression member 50a may surround the temperature sensor 40. That is, a portion of the compression member 50a may be disposed on one side of the temperature sensor 40, and another portion of the compression member 50a may be disposed on the other side of the temperature sensor.

[0105] In more detail, a through hole may be defined in the compression member 50 a , and the temperature sensor 40 may be disposed in the through hole. The through hole may face the hole 34 defined in the bridge 30 .

[0106] An advantage of this embodiment is that the process of bonding the compression member 50 a to the base plate 20 and / or the bridge 30 is simplified.

[0107] The description of the present invention is intended to be illustrative and various changes and modifications may be made by one skilled in the art to which the present invention pertains without departing from the spirit and scope of the invention as defined in the following claims.

[0108] Therefore, the embodiments proposed herein are intended to describe the technical spirit of the present invention, rather than to limit it. The scope of the technical spirit of the present invention is not limited by the embodiments.

[0109] In addition, the protection scope of the present invention should be determined by reasonable interpretation of the appended claims, and all technical concepts within the equivalent scope of the present application should be interpreted as being within the scope of the rights of the present application.

[0110] [Explanation of Reference Numerals]

[0111] 10: Temperature sensing component 20: Substrate

[0112] 21: Connection part 22: Installation part

[0113] 23: inclined part 30: bridge piece

[0114] 31: Main part 32: Extension part

[0115] 33: Connecting part 34: Hole

[0116] 40: Temperature sensor 50: Compression member

[0117] 60: Adhesive layer 100: Battery module

[0118] 110: Cell stack 111: Battery cell

[0119] 120: Housing 130: Busbar frame

[0120] 140: End plate

Claims

1. A temperature sensing component, the temperature sensing component comprising: substrate; a temperature sensor mounted on the substrate; a bridge member coupled to the substrate and defining a hole therein facing the temperature sensor; as well as A compression member is disposed between the bridge and the substrate on each of the two sides of the temperature sensor.

2. The temperature sensing assembly according to claim 1, wherein: The bridge is coupled to an upper side of the base plate.

3. The temperature sensing assembly according to claim 1, wherein: The bridge member comprises: a main body portion to which the substrate is coupled; and An extending portion extends from the body portion, is spaced apart from the base plate by a predetermined distance, and contacts the compression member.

4. The temperature sensing assembly according to claim 3, wherein: The hole is defined in the extension portion.

5. The temperature sensing assembly according to claim 1, wherein: The substrate comprises: a coupling portion coupled to the bridge; and A mounting portion is spaced apart from the bridge by a predetermined distance and on which the temperature sensor is mounted.

6. The temperature sensing assembly according to claim 5, wherein: An adhesive layer is provided between the coupling portion and the bridge.

7. The temperature sensing assembly according to claim 5, wherein: The base plate further includes an inclined portion connecting the coupling portion to the mounting portion and disposed to be inclined with respect to the mounting portion.

8. The temperature sensing assembly according to claim 1, wherein: The compression member is coupled to each of the base plate and the bridge.

9. The temperature sensing assembly according to claim 1, wherein: The hole does not overlap with the compression member in a penetration direction of the hole.

10. A battery module, comprising: shell; a cell stack accommodated in the housing and including a plurality of battery cells arranged parallel to each other; as well as a temperature sensing assembly configured to sense a temperature of the unit stack, Wherein, the temperature sensing component comprises: a substrate disposed above the unit stack; a temperature sensor mounted on the substrate; a bridge member coupled to the substrate and defining a hole facing the temperature sensor therein; and A compression member is disposed between the bridge and the substrate on each of the two sides of the temperature sensor.

11. The battery module according to claim 10, further comprising a bus bar frame on which bus bars connected to the plurality of battery cells are mounted, in, The bridge is pivotably connected to the busbar frame.

12. The battery module according to claim 10, wherein: At least a portion of the temperature sensing assembly is disposed between an upper plate of the housing and the unit stack.

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