Temperature monitoring assembly and battery

Abstract

The application discloses a temperature monitoring assembly and a battery, and belongs to the technical field of batteries. The temperature monitoring assembly comprises a temperature sensing wire, a first support and a second support, at least part of one end of the temperature sensing wire is clamped between the first support and the second support; wherein, one side of the second support away from the first support is arranged to face a workpiece to be measured; or, one side of the first support away from the second support is arranged to face the workpiece to be measured. The temperature monitoring assembly can improve the stability of the temperature monitoring assembly in contact with the inner core, thereby improving the accuracy and reliability of the test results.

Description

Technical Field

[0001] This application relates to the field of battery technology, and more particularly to a temperature monitoring component and a battery. Background Technology

[0002] Batteries generate heat during operation. If the temperature is too high or unevenly distributed, thermal runaway can easily occur, leading to battery performance degradation, shortened lifespan, or even safety accidents such as fire and explosion. Therefore, in the research, development, verification, and safety testing of batteries, it is crucial to monitor the temperature of localized areas inside the battery by placing thermocouples (temperature sensing wires) inside the battery to conduct temperature signals. Accurate measurement of the temperature of critical internal components (such as the core) is essential, as the measurement data directly affects the assessment of battery charge-discharge performance, thermal runaway risk, and cycle life.

[0003] In related technologies, one end of the temperature sensing wire is directly attached to the test area of ​​the inner core and simply fixed with a fastener. Because the temperature sensing wire itself is sharp and thin, the contact area with the inner core is extremely small. The wire can loosen, fall off, or shift position due to pulling or vibration, resulting in an unstable temperature measurement point. This makes it impossible to continuously and accurately monitor the temperature of the same area, leading to significant deviations in temperature measurement data and severely affecting the accuracy and reliability of the test results. Utility Model Content

[0004] This application provides a temperature monitoring component and a battery that can improve the stability of the contact between the temperature monitoring component and the inner core, thereby improving the accuracy and reliability of the test results.

[0005] To achieve the above objectives, according to a first aspect of this application, a temperature monitoring component is provided, comprising: a temperature sensing wire, a first support member and a second support member, wherein at least a portion of one end of the temperature sensing wire is clamped between the first support member and the second support member; In this configuration, the side of the second support member that faces away from the first support member is positioned facing the workpiece to be measured; or, The side of the first support member that is away from the second support member is positioned facing the workpiece to be tested.

[0006] Optionally, one end of the temperature sensing wire is wound around the outer surface of the first support member, and the temperature sensing wire is connected to the first support member.

[0007] Optionally, one end of the temperature sensing wire is wound around the outer surface of the second support member, and the temperature sensing wire is connected to the second support member.

[0008] Optionally, the first support member is welded to the second support member; and / or, The temperature sensing wire is welded to at least one of the first support member and the second support member.

[0009] Optionally, the thermal conductivity of both the first support member and the second support member is greater than or equal to 390 W / m·K; and / or, The thickness of the first support member and the thickness of the second support member are both less than or equal to 0.1 mm.

[0010] According to a second aspect of this application, a battery is provided, comprising a first cover plate, a housing, an inner core, and at least one temperature monitoring component as described in any one of the above, wherein the inner core is disposed within a receiving cavity formed after the first cover plate and the housing are assembled, and the temperature monitoring component is fixed to the testing area of ​​the inner core by a fastener.

[0011] Optionally, the first cover plate is provided with an opening, and the battery further includes a rubber plug that matches the opening, the rubber plug being provided with at least one through hole for the temperature sensing wire to pass through.

[0012] Optionally, the number of perforations is multiple, and the multiple perforations are arranged sequentially, with the diameter of the perforation being greater than or equal to the diameter of the temperature sensing wire, and each perforation being used for one temperature sensing wire to pass through; and / or, The thickness of the rubber stopper is less than or equal to 1 mm.

[0013] Optionally, the opening is elliptical in shape, with a length ranging from 20mm to 25mm and a width ranging from 5mm to 10mm; and / or, The diameter of the perforation ranges from 0.2 mm to 0.3 mm, and the number of perforations is from 10 to 20.

[0014] Optionally, an adhesive is provided at the connection between the first cover plate and the rubber stopper; and / or, An adhesive is provided at the connection between the temperature sensing wire and the rubber stopper.

[0015] Optionally, the thermal conductivity of the fastener is greater than or equal to 0.8 W / m·K.

[0016] In the temperature monitoring component and battery of this application embodiment, the temperature sensing wire is connected to and clamped by the second support member and the first support member, which improves the positional stability of the temperature sensing wire. Furthermore, the contact between the temperature monitoring component and the inner core is increased by the first support member or the second support member, thereby improving the stability of the contact between the temperature monitoring component and the inner core. This avoids the temperature sensing wire from loosening or misaligning inside the battery due to various external forces, thereby reducing the deviation of the measurement data and improving the accuracy and reliability of the test results.

[0017] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0020] Figure 1 This is a schematic diagram of the exploded structure of a battery provided in an exemplary embodiment of this disclosure; Figure 2 yes Figure 1 A magnified schematic diagram of the local structure at point A; Figure 3 This is a schematic diagram of the planar structure of a battery provided in an exemplary embodiment of this disclosure; Figure 4 This is a cross-sectional schematic diagram of a battery provided in an exemplary embodiment of this disclosure; Figure 5 yes Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0021] Explanation of reference numerals in the attached figures: 1. Temperature monitoring component; 11. Temperature sensing wire; 12. First support member; 13. Second support member; 2. First cover plate; 21. Opening; 22. First electrode; 23. Second electrode; 3. Housing; 31. Body; 32. Second cover plate; 4. Inner core; 5. Receiving cavity; 6. Rubber plug; 61. Perforation; 62. Groove; 7. Adhesive; 8. Fixing member. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "up," "down," "left," and "right" generally refer to up, down, left, and right in the actual use or working state of the device, specifically the drawing directions in the accompanying drawings.

[0023] In this application, unless otherwise expressly specified and limited, the terms "connected," "linked," "stacked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] This application provides a temperature monitoring component and a battery, which are described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0025] According to the first aspect of this application, referring to Figure 1 and Figure 2 One embodiment of this application provides a temperature monitoring component 1, which can be used to monitor the temperature of the battery's inner core 4, and can also be used to monitor the temperature of other devices. In this application, the temperature monitoring component 1 is used to monitor the temperature of the battery's inner core 4 as an example for description. The temperature monitoring component 1 may include: a temperature sensing wire 11, a first support member 12, and a second support member 13.

[0026] Specifically, refer to Figure 2At least a portion of one end of the temperature sensing wire 11 is clamped between the first support member 12 and the second support member 13. Both the first support member 12 and the second support member 13 can be sheet-like structures, with one side of the second support member 13 connected to one side of the first support member 12. The temperature sensing wire 11 can be a platinum resistance temperature sensor wire, a thermistor wire, etc. As an example, the wire diameter of the temperature sensing wire 11 ranges from 0.08 mm to 0.2 mm, for example, 0.1 mm. Temperature sensing wires 11 with wire diameters within this range have good flexibility, low heat capacity, and sufficient mechanical strength.

[0027] In some embodiments, the thermal conductivity of both the first support 12 and the second support 13 can be greater than or equal to 390 W / m·K. This not only reduces heat loss during temperature conduction, thereby reducing the difference between the temperature detected by the temperature sensing line 11 and the actual temperature of the inner core 4, but also allows heat to be quickly transferred from the surface of the inner core 4 to the temperature sensing line 11, thus improving detection efficiency. As an example, the first support 12 and the second support 13 can be made of a metal material with high thermal conductivity, such as copper. Copper has a thermal conductivity greater than or equal to 390 W / m·K (the typical thermal conductivity of copper is approximately 400 W / m·K). Copper also has good ductility and bendability, enabling it to adapt to the test area of ​​the inner core 4 with different shapes. The first support 12 or the second support 13 can fit tightly against the surface of the inner core 4. In some embodiments, the thermal conductivity of the first support 12 and the second support 13 can also be set to other specifications as needed.

[0028] In some embodiments, the thickness of the first support member 12 and the thickness of the second support member 13 can both be less than or equal to 0.1 mm. For example, the thickness of the first support member 12 and the thickness of the second support member 13 can both be any value among 0.02 mm, 0.04 mm, 0.06 mm, 0.08 mm, 0.10 mm, or any value between the two. This allows the entire temperature monitoring component 1 to be flat, giving it good flexibility and making it easy to attach tightly to the surface of the inner core 4. Furthermore, its low heat capacity prevents significant temperature measurement delays and reduces the space occupied by the temperature monitoring component 1 within the battery, allowing for a more compact internal battery layout. In some embodiments, the thickness of the first support member 12 and the thickness of the second support member 13 can also be set to other thicknesses as needed.

[0029] In this design, the side of the second support member 13 facing away from the first support member 12 can face the workpiece to be tested; alternatively, the side of the first support member 12 facing away from the second support member 13 can face the workpiece to be tested. In this application, the workpiece to be tested can be the inner core 4. During the test, when the side of the second support member 13 facing away from the first support member 12 faces the workpiece to be tested, the side of the second support member 13 facing away from the first support member 12 can be in close contact with the surface of the inner core 4, and the heat from the inner core 4 is conducted to the temperature sensing wire 11 through the second support member 13. When the side of the first support member 12 facing away from the second support member 13 faces the workpiece to be tested, the side of the first support member 12 facing away from the second support member 13 can be in close contact with the surface of the inner core 4, and the heat from the inner core 4 is conducted to the temperature sensing wire 11 through the first support member 12.

[0030] In this application, the temperature sensing wire 11 is connected to and clamped by the second support member 13 and the first support member 12, which improves the positional stability of the temperature sensing wire 11. Furthermore, the contact between the temperature sensing wire 11 and the inner core 4 via the first support member 12 or the second support member 13 increases the contact area between the temperature monitoring component 1 and the inner core 4, thereby improving the stability of the contact and preventing the temperature sensing wire 11 from loosening or misaligning inside the battery due to various external forces. This reduces measurement data deviation and improves the accuracy and reliability of the test results. Moreover, compared to point contact between the temperature sensing wire 11 and the inner core 4, this application uses the first support member 12 or the second support member 13 to collect the average temperature of a larger area, rather than an isolated "point" temperature, thus more accurately reflecting the overall temperature condition of the test area.

[0031] In some embodiments, refer to Figure 2 One end of the temperature sensing wire 11 can be wound around the outer surface of the first support member 12. The first support member 12 can provide reliable mechanical support and fixing points for the flexible temperature sensing wire 11. By winding, not only can the contact area between the temperature sensing wire 11 and the first support member 12 be increased, improving the temperature conduction efficiency, but the stability of the connection between the temperature sensing wire 11 and the first support member 12 can also be improved, thereby improving the stability of the position of the temperature sensing wire 11.

[0032] The temperature sensing wire 11 can be fixedly connected to the first support member 12, which can prevent the temperature sensing wire 11 from loosening and shifting, thereby further improving the stability of the position of the temperature sensing wire 11. The temperature sensing wire 11 and the first support member 12 can be connected by welding or by adhesive. In this embodiment, the temperature sensing wire 11 and the first support member 12 are welded together, for example, by laser welding or resistance welding.

[0033] One end of the temperature sensing wire 11 can also be wound around the outer surface of the second support member 13. The second support member 13 can provide reliable mechanical support and fixing points for the flexible temperature sensing wire 11. By winding, not only can the contact area between the temperature sensing wire 11 and the second support member 13 be increased, improving the temperature conduction efficiency, but the stability of the connection between the temperature sensing wire 11 and the second support member 13 can also be improved, thereby improving the positional stability of the temperature sensing wire 11.

[0034] The temperature sensing wire 11 can also be fixedly connected to the second support member 13 to prevent the temperature sensing wire 11 from loosening or shifting, thereby further improving the stability of the temperature sensing wire 11's position. The temperature sensing wire 11 and the second support member 13 can be welded together or connected by adhesive or the like. In this embodiment, the temperature sensing wire 11 and the second support member 13 are welded together, for example, by means of laser welding or resistance welding.

[0035] As an example, when one end of the temperature sensing wire 11 is wound around the outer surface of the first support member 12, the end of the temperature sensing wire 11 can be spirally wound around the outer surface of the first support member 12, so that the temperature sensing wire 11 is evenly distributed on the first support member 12. The side of the second support member 13 facing away from the inner core 4 is in contact with the temperature sensing wire 11, so that the second support member 13 can evenly conduct the temperature of the test area of ​​the inner core 4 to the temperature sensing wire 11, thereby further improving the accuracy and reliability of the test results. In this application, the temperature sensing wire 11 located on the side of the first support member 12 facing away from the second support member 13 can be fixedly connected to the first support member 12 by welding. In some embodiments, the temperature sensing wire 11 located on the side of the first support member 12 facing the second support member 13 can also be fixedly connected to the first support member 12 and / or the second support member 13 by welding. In some embodiments, when one end of the temperature sensing wire 11 is wound around the outer surface of the second support member 13, one end of the temperature sensing wire 11 can be spirally wound around the outer surface of the second support member 13, so that the temperature sensing wire 11 can be evenly distributed on the second support member 13.

[0036] In some embodiments, the first support member 12 and the second support member 13 can be connected by welding or by adhesive. In this embodiment, the first support member 12 and the second support member 13 are welded together, for example, by laser welding or resistance welding. This not only ensures a fixed connection between the first support member 12 and the second support member 13, but also allows the first support member 12 and the second support member 13 to more stably clamp the temperature sensing wire 11, preventing the temperature sensing wire 11 from shifting during testing.

[0037] According to the second aspect of this application, referring to Figure 1One embodiment of this application provides a battery including a first cover plate 2, a housing 3, an inner core 4, and at least one temperature monitoring component 1 as described above. The inner core 4 is disposed within a receiving cavity 5 formed after the first cover plate 2 and the housing 3 are assembled. The temperature monitoring component 1 is fixed to a testing area of ​​the inner core 4 by a fastener 8, the testing area being, for example, the surface of the inner core 4.

[0038] Reference Figure 1 The housing 3 may include a body 31 and a second cover plate 32. The first cover plate 2 and the second cover plate 32 are respectively disposed at opposite ends of the body 31, that is, one of the first cover plate 2 and the second cover plate 32 can serve as a top cover and the other as a bottom cover. In this embodiment, the first cover plate 2 is the top cover and the second cover plate 32 is the bottom cover. The first cover plate 2 may be provided with a first electrode 22 and a second electrode 23 spaced apart from each other, and the first electrode 22 and the second electrode 23 are electrically connected to the inner core 4. One of the first electrode 22 and the second electrode 23 can serve as a positive electrode and the other as a negative electrode.

[0039] In some embodiments, the thermal conductivity of the fastener 8 is greater than or equal to 0.8 W / m·K. The fastener 8 is, for example, adhesive tape, which can be a high thermal conductivity tape with a thermal conductivity greater than or equal to 0.8 W / m·K, such as polyimide tape (Kapton tape) or acrylic tape with added thermally conductive fillers such as ceramic powder. The high thermal conductivity fastener 8 can reduce the contact thermal resistance between the temperature monitoring component 1 and the battery surface, improving the accuracy and response speed of temperature measurement.

[0040] In some embodiments, refer to Figure 1 and Figure 2The temperature sensing wire 11 is wound around the first support member 12, and the side of the second support member 13 facing away from the first support member 12 is fitted against the test area of ​​the inner core 4. The area of ​​the first support member 12 can be less than or equal to the area of ​​the second support member 13, that is, the orthogonal projection of the first support member 12 onto the second support member 13 does not exceed the range of the second support member 13. As an example, when the area of ​​the first support member 12 is less than the area of ​​the second support member 13, the fixing member 8 can cover at least a portion of the area of ​​the first support member 12, and the fixing member 8 can also cover at least a portion of the area of ​​the second support member 13, to fix the temperature monitoring component 1 to the inner core 4. When the area of ​​the first support member 12 is equal to the area of ​​the second support member 13, the fixing member 8 can cover at least a portion of the area of ​​the first support member 12. In this embodiment, the area of ​​the first support member 12 is smaller than the area of ​​the second support member 13, and the fixing member 8 covers a portion of the second support member 13. In this way, the heat of the inner core 4 can be conducted to the temperature monitoring component 1 for detection by the temperature sensing wire 11. The temperature monitoring component 1 then conducts the heat of the inner core 4 to the shell 3, avoiding obstruction of the normal heat exchange between the inner core 4 and the shell 3. This can simulate the heat transfer between the inner core 4 and the shell 3 in actual use, thereby detecting the temperature of the battery during actual operation.

[0041] Reference Figure 1 and Figure 2 The end of the temperature sensing wire 11 away from the first support member 12 and the second support member 13 can extend to the outside of the receiving cavity 5. The first cover plate 2 can be made of aluminum alloy and can be provided with an opening 21, which can be disposed between the first electrode 22 and the second electrode 23. The opening 21 can be formed by stamping to ensure that the opening 21 has a regular shape, smooth edges, and no burrs or metal debris residue. The shape of the opening 21 can be elliptical, circular, rectangular, etc. In this embodiment, the shape of the opening 21 is elliptical, and the length of the opening 21 is in the range of 20mm to 25mm. For example, the length of the opening 21 can be any value among 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, etc., or any value between any two. The width of the opening 21 is in the range of 5mm to 10mm. For example, the width of the opening 21 can be any value among 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, etc., or any value between any two.

[0042] Reference Figure 1 and Figure 3The rubber stopper 6 has at least one through hole 61 for the temperature sensing wire 11 to pass through, allowing the temperature sensing wire 11 to be led out in an orderly manner. The rubber stopper 6 can be made of an elastic insulating material, such as silicone rubber, fluororubber, or nitrile rubber. The rubber stopper 6 and the opening 21 can be interference-fitted to improve sealing performance. The thickness of the rubber stopper 6 can be greater than or equal to the thickness of the first cover plate 2, or it can be less than the thickness of the first cover plate 2. As an example, the thickness of the rubber stopper 6 is less than or equal to 1 mm, which can reduce the thickness occupied by the rubber stopper 6 on the first cover plate 2, avoid affecting the overall size of the battery, and facilitate subsequent sealing operations.

[0043] In some embodiments, refer to Figure 2 , Figure 4 and Figure 5 The rubber stopper 6 has a groove 62 on its side. When the rubber stopper 6 is installed in the opening 21, the first cover plate 2 can be snapped into the groove 62. This not only positions the rubber stopper 6, but also improves the sealing performance between the rubber stopper 6 and the first cover plate 2.

[0044] As an example, when there are multiple perforations 61, the multiple perforations 61 are arranged sequentially, for example, the multiple perforations 61 are evenly spaced along the length direction of the opening 21 of the first cover plate 2. A single rubber stopper 6 has multiple perforations 61, allowing multiple temperature monitoring components 1 to be introduced into a single battery, respectively attached to different key locations in the inner core 4, enabling multi-point synchronous monitoring of the internal temperature field distribution of the battery and a more comprehensive understanding of the battery's thermal state. In some embodiments, the multiple perforations 61 can also be arranged in multiple rows and columns. As an example, the number of perforations 61 can be from 10 to 20, for example, any value among 10, 12, 14, 16, 18, 20, or any value between two of these. The number of perforations 61 can be set according to actual needs.

[0045] The diameter of the perforation 61 can be greater than or equal to the diameter of the temperature sensing wire 11. This ensures that the temperature sensing wire 11 passes through smoothly, thereby reducing operational difficulty and improving work efficiency. Each perforation 61 is used for one temperature sensing wire 11 to pass through. Multiple temperature sensing wires 11 can be distributed sequentially along the perforations 61, achieving a one-to-one correspondence between the temperature sensing wires 11 and the monitoring points without manual marking. This avoids data confusion caused by disordered order of the temperature sensing wires 11. As an example, the diameter of the perforation 61 is slightly larger than the diameter of the temperature sensing wire 11. This ensures that the temperature sensing wire 11 passes through smoothly while reducing the gap between the perforation 61 and the temperature sensing wire 11, reducing sealing difficulty. The diameter of the perforation 61 ranges from 0.2mm to 0.3mm. For example, the diameter of the perforation 61 can be any value among 0.20mm, 0.22mm, 0.24mm, 0.26mm, 0.28mm, 0.30mm, or any value between two of these.

[0046] In some embodiments, refer to Figure 5 An adhesive 7 can be provided at the connection between the first cover plate 2 and the rubber stopper 6. An adhesive 7 can also be provided at the connection between the temperature sensing wire 11 and the rubber stopper 6. The adhesive 7 can be, for example, epoxy resin, silicone sealant, or AB glue. In this embodiment, the adhesive 7 is AB glue. AB glue has excellent sealing properties and bonding strength, which can seal the gap between the first cover plate 2 and the rubber stopper 6, and the gap between the temperature sensing wire 11 and the perforation 61, preventing leakage of electrolyte inside the battery, and further fixing the temperature sensing wire 11 to prevent its displacement.

[0047] As an example, the battery assembly process: Remove a section of the insulation layer at one end of the temperature sensing wire 11 to expose the metal wire, and tightly wrap the exposed metal wire portion around the outer surface of the first support member 12. After the winding is completed, one side of the second support member 13 is aligned and attached to one side of the first support member 12, so that one end of the temperature sensing wire 11 is clamped between the two. Then, the first support member 12 and the second support member 13 are welded and fixed using laser welding process. At the same time, the temperature sensing wire 11 located on the side of the first support member 12 facing away from the second support member 13 is welded and fixed to the first support member 12 using laser welding process to form temperature monitoring component 1. During installation, the temperature monitoring component 1 is fixed to the test area of ​​the inner core 4 by the fastener 8, and the side of the second support 13 facing away from the first support 12 is fitted to the inner core 4 to ensure that the second support 13 is in full contact with the surface of the inner core 4. Pass the end of the temperature sensing wire 11 away from the first support member 12 and the second support member 13 through the corresponding perforation 61 on the rubber plug 6 in sequence. The rubber stopper 6 is pressed into the opening 21 of the first cover plate 2. The rubber stopper 6 and the opening 21 are interference fit. Through the elastic deformation of the rubber stopper 6, a tight fit is formed between it and the inner wall of the opening 21, thus achieving a preliminary seal.

[0048] Adhesive 7 is used to fill the tiny gap between the rubber stopper 6 and the opening 21 of the first cover plate 2, and adhesive 7 is also applied to the joint between the rubber stopper 6 and the temperature sensing wire 11.

[0049] The inner core 4, which is equipped with the temperature monitoring component 1, and the first cover plate 2 are assembled with the casing 3 to form a battery.

[0050] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0051] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0052] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0053] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A temperature monitoring component, characterized in that, include: Temperature sensing wire (11), first support member (12) and second support member (13), at least a portion of one end of temperature sensing wire (11) is clamped between the first support member (12) and the second support member (13); In this configuration, the side of the second support member (13) facing away from the first support member (12) is positioned facing the workpiece to be measured; or, The side of the first support member (12) that is away from the second support member (13) is positioned facing the workpiece to be tested.

2. The temperature monitoring component according to claim 1, characterized in that, One end of the temperature sensing wire (11) is wrapped around the outer surface of the first support member (12), and the temperature sensing wire (11) is connected to the first support member (12).

3. The temperature monitoring component according to claim 1, characterized in that, One end of the temperature sensing wire (11) is wrapped around the outer surface of the second support member (13), and the temperature sensing wire (11) is connected to the second support member (13).

4. The temperature monitoring component according to claim 2 or 3, characterized in that, The first support member (12) is welded to the second support member (13); and / or, The temperature sensing wire (11) is welded to at least one of the first support member (12) and the second support member (13).

5. The temperature monitoring component according to claim 1, characterized in that, The thermal conductivity of the first support member (12) and the thermal conductivity of the second support member (13) are both greater than or equal to 390 W / m·K; and / or, The thickness of the first support member (12) and the thickness of the second support member (13) are both less than or equal to 0.1 mm.

6. A battery, characterized in that, The device includes a first cover plate (2), a housing (3), an inner core (4), and at least one temperature monitoring component (1) as described in any one of claims 1 to 5. The inner core (4) is disposed in a receiving cavity (5) formed after the first cover plate (2) and the housing (3) are assembled. The temperature monitoring component (1) is fixed to the testing area of ​​the inner core (4) by a fastener (8).

7. The battery according to claim 6, characterized in that, The first cover plate (2) is provided with an opening (21), and the battery also includes a rubber plug (6) that matches the opening (21). The rubber plug (6) is provided with at least one through hole (61) for the temperature sensing wire (11) to pass through.

8. The battery according to claim 7, characterized in that, The number of the perforations (61) is multiple, and the multiple perforations (61) are arranged sequentially. The diameter of the perforation (61) is greater than or equal to the diameter of the temperature sensing wire (11), and each perforation (61) is used for one temperature sensing wire (11) to pass through; and / or, The thickness of the rubber stopper (6) is less than or equal to 1 mm.

9. The battery according to claim 7, characterized in that, The opening (21) is elliptical in shape, with a length ranging from 20mm to 25mm and a width ranging from 5mm to 10mm; and / or, The diameter of the perforation (61) ranges from 0.2 mm to 0.3 mm, and the number of perforations (61) is from 10 to 20.

10. The battery according to claim 7, characterized in that, An adhesive (7) is provided at the connection between the first cover plate (2) and the rubber stopper (6); and / or, An adhesive (7) is provided at the connection between the temperature sensing wire (11) and the rubber stopper (6).

11. The battery according to claim 6, characterized in that, The thermal conductivity of the fastener (8) is greater than or equal to 0.8 W / m·K.

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