Insulating part and battery

Abstract

The utility model provides an insulating part and a battery. The insulating part comprises an insulating part body, and the insulating part body is arranged on one side, provided with the anti-explosion valve, of the battery; the conductive part is arranged on the insulating part body, the conductive part is electrically conducted with a shell of the battery, and at least the part, corresponding to the conductive part, of the insulating part body can drive the conductive part to move together relative to the battery. The battery thermal runaway prediction device solves the problem of poor battery thermal runaway prediction effect in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and more specifically, to an insulating component and a battery. Background Technology

[0002] Battery thermal runaway refers to an abnormal response in a battery under internal or external stimuli, leading to an uncontrollable increase in internal temperature and potentially causing safety issues such as battery combustion or explosion. This is a potential risk that requires serious attention during battery use. Therefore, predicting battery thermal runaway in advance is crucial; however, current technologies for predicting battery thermal runaway are ineffective, with slow monitoring responses, making it difficult to detect battery thermal runaway in a timely manner.

[0003] Therefore, existing technologies suffer from poor prediction performance of battery thermal runaway. Utility Model Content

[0004] The main purpose of this invention is to provide an insulating component and a battery to solve the problem of poor prediction of battery thermal runaway in the prior art.

[0005] To achieve the above objectives, according to one aspect of the present invention, an insulating component is provided, comprising: an insulating component body disposed on the side of a battery having an explosion-proof valve; and a conductive portion disposed on the insulating component body, wherein the conductive portion is electrically connected to the battery casing, and at least a portion of the insulating component body corresponding to the conductive portion is capable of driving the conductive portion to move relative to the battery.

[0006] Furthermore, the insulating component also includes a monitoring component, at least a portion of which is electrically connected to the side of the conductive portion away from the battery.

[0007] Furthermore, the conductive part includes at least two spaced-apart conductive sheets, which are electrically connected to the battery and the monitoring component, respectively.

[0008] Furthermore, there are two conductive sheets, which are respectively disposed on a set of opposite sides of the insulating body.

[0009] Furthermore, two conductive sheets are located between the two electrodes of the battery.

[0010] Furthermore, the monitoring component includes a voltage monitoring unit and at least one conductive connector, and the voltage monitoring unit is electrically connected to the conductive sheet via the conductive connector.

[0011] Furthermore, the monitoring component also includes a guide block disposed on the battery, the guide block having a groove corresponding to the conductive connector, one end of the conductive connector extending into the groove and being able to move along the groove.

[0012] Furthermore, the guide block is made of insulating material; and / or there are two guide blocks, each corresponding to one of the two conductive connectors, which are disposed opposite to each other on the battery; and / or the groove extends vertically.

[0013] Furthermore, the insulating body has clearance openings corresponding to the battery electrodes.

[0014] According to another aspect of the present invention, a battery having the above-described insulating element is provided.

[0015] Applying the technical solution of this utility model, the insulating component in this application includes an insulating component body and a conductive part. The insulating component body is disposed on the side of the battery with the explosion-proof valve; the conductive part is disposed on the insulating component body, and the conductive part is electrically connected to the battery casing, and at least the portion of the insulating component body corresponding to the conductive part can drive the conductive part to move relative to the battery.

[0016] When using the insulating component of this application, the insulating component body can be positioned on the side of the battery with the explosion-proof valve. Furthermore, since the conductive part is electrically connected to the battery casing, the explosion-proof valve will leak before thermal runaway occurs, causing the insulating component body to bulge. This bulge causes the conductive part to move away from the battery casing, thus disconnecting the electrical connection between the conductive part and the battery casing. Therefore, when using the insulating component of this application, voltage monitoring of the conductive part is sufficient to promptly determine whether thermal runaway has occurred, effectively improving the detection and response speed of battery thermal runaway. Thus, the insulating component of this application effectively solves the problem of poor prediction performance for battery thermal runaway in the prior art. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of the structure of a battery according to a specific embodiment of the present invention is shown;

[0019] Figure 2 It shows Figure 1 Exploded view of part of the battery structure;

[0020] Figure 3 This diagram illustrates the positional relationship between the conductive sheet and the battery when thermal runaway occurs.

[0021] Figure 4 A schematic diagram showing the positional relationship of the monitoring component, the insulating body, the conductive part, and the battery in a specific embodiment of this application is illustrated.

[0022] Figure 5 This invention provides a schematic diagram showing the positional relationship between the monitoring component, the insulating body, the conductive part, and the battery in another specific embodiment of the present application.

[0023] Figure 6 This diagram illustrates the positional relationship between the monitoring component, the insulating body, the conductive part, and the battery when the voltage monitoring unit of this application monitors a single conductive sheet.

[0024] The above figures include the following reference numerals:

[0025] 10. Insulating component body; 11. Clearance opening; 20. Battery; 21. Electrode; 30. Explosion-proof valve; 40. Conductive part; 41. Conductive sheet; 50. Monitoring component; 51. Voltage monitoring part; 52. Conductive connector; 53. Guide block; 531. Slide groove; 60. Charge and discharge control system. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] To address the problem of poor prediction performance of battery thermal runaway in existing technologies, this application provides an insulating component and a battery.

[0030] And, as Figures 1 to 6 As shown, the battery 20 in this application has the following insulating elements.

[0031] like Figures 1 to 6 As shown, the insulating component in this application includes an insulating component body 10 and a conductive portion 40. The insulating component body 10 is disposed on the side of the battery 20 with the explosion-proof valve 30; the conductive portion 40 is disposed on the insulating component body 10, and the conductive portion 40 is electrically connected to the casing of the battery 20, and at least the portion of the insulating component body 10 corresponding to the conductive portion 40 can drive the conductive portion 40 to move relative to the battery 20.

[0032] When using the insulating component of this application, the insulating component body 10 can be disposed on the side of the battery 20 with the explosion-proof valve 30. Furthermore, since the conductive part 40 is electrically connected to the casing of the battery 20, before thermal runaway occurs in the battery 20, the explosion-proof valve 30 of the battery 20 will leak first, causing the insulating component body 10 to bulge. This causes the insulating component body 10 to move the conductive part 40 away from the casing of the battery 20, thereby causing the conductive part 40 to no longer maintain an electrical connection with the casing of the battery 20, but instead to become disconnected. Therefore, when using the insulating component of this application, only voltage monitoring of the conductive part 40 of the insulating component is needed to promptly determine whether thermal runaway has occurred in the battery 20, thereby effectively improving the monitoring response speed of thermal runaway in the battery 20. Therefore, the insulating component of this application effectively solves the problem of poor prediction effect of battery thermal runaway in the prior art.

[0033] It should be noted that, in general, the explosion-proof valve 30 and the electrode 21 of a battery 20 are both located at the top of the battery 20. Therefore, the insulating body 10 of the insulating component in this application is generally located on the top surface of the battery 20.

[0034] Specifically, the insulating component also includes a monitoring component 50, at least a portion of which is electrically connected to the side of the conductive portion 40 away from the battery 20. In this application, by providing the monitoring component 50, the electrical conductivity state between the conductive portion 40 and the battery 20 casing can be directly determined, thereby determining whether the battery 20 has experienced thermal runaway. Of course, in this application, the monitoring component 50 can also monitor other states of the conductive portion 40, as long as it can determine whether the conductive portion 40 is in contact with or separated from the battery 20 casing. It should be noted that in this application, when the battery 20 is not in a state of thermal runaway, the conductive portion 40 and the battery 20 casing remain in contact, thereby ensuring electrical conductivity between the conductive portion 40 and the battery 20 casing. Before the battery 20 experiences thermal runaway, the explosion-proof valve 30 of the battery 20 will leak air, which will lift up part of the insulating body 10. This will allow the lifted part of the insulating body 10 to move the conductive part 40 and prevent the conductive part 40 from contacting the battery 20 casing, thereby enabling the monitoring of the thermal runaway of the battery 20.

[0035] Specifically, the conductive part 40 includes at least two spaced-apart conductive sheets 41, which are electrically connected to the battery 20 and the monitoring component 50, respectively. Furthermore, in this application, the conductive sheets 41 and the insulating body 10 can be integrally formed, or the insulating body 10 can have a portion that is conductive to the battery 20's casing, and this portion constitutes the conductive sheet 41. This arrangement ensures more synchronized movement between the conductive sheet 41 and the insulating body 10, thereby guaranteeing the sensitivity of thermal runaway monitoring of the battery 20. Of course, the relationship between the conductive part 40 and the insulating body 10 can be adaptively adjusted according to actual use and production needs.

[0036] Optionally, there are two conductive sheets 41, which are respectively disposed on a set of opposite sides of the insulating body 10. Of course, in this application, the relative positions of the two conductive sheets 41 and the insulating body 10 can be adaptively adjusted according to actual practical and design requirements. Preferably, in this application, the conductive sheets 41 can be disposed on the part of the insulating body 10 near the explosion-proof valve 30, so that when the explosion-proof valve 30 leaks, the conductive sheets 41 can more promptly detach from the battery 20 casing, thereby improving the sensitivity of monitoring thermal runaway of the battery 20.

[0037] Optionally, the two conductive plates 41 are located between the two electrodes 21 of the battery 20. Since the explosion-proof valve 30 is usually located between the two electrodes 21 of the battery 20, placing the two conductive plates 41 between the two electrodes 21 of the battery 20 can effectively ensure the sensitivity of thermal runaway monitoring of the battery 20. Furthermore, it should be noted that in this application, the two conductive plates 41 being located between the two electrodes 21 of the battery 20 does not necessarily mean that the two conductive plates 41 are located on the line connecting the two electrodes 21 of the battery 20. Rather, it is sufficient that the two conductive plates 41 are located on the portion of the insulating body 10 between the two electrodes 21; the conductive plates 41 do not need to be directly opposite the two electrodes 21.

[0038] Optionally, such as Figure 5 and Figure 6 As shown, the monitoring component 50 includes a voltage monitoring unit 51 and at least one conductive connector 52, and the voltage monitoring unit 51 is electrically connected to the conductive sheet 41 through the conductive connector 52.

[0039] Preferably, such as Figure 5 and Figure 6As shown, the monitoring component 50 also includes a guide block 53 disposed on the battery 20. The guide block 53 is provided with a groove 531 corresponding to the conductive connector 52. One end of the conductive connector 52 extends into the groove 531 and can move along the groove 531. When the insulating body 10 moves together with the conductive sheet 41, the conductive connector 52 will move together with the conductive sheet 41. Therefore, by setting the guide block 53 and the groove 531 on the guide block 53, the movement of the conductive connector 52 can be limited and guided, thereby ensuring the stable operation of the monitoring component 50.

[0040] In one specific embodiment of this application, such as Figure 5 As shown, the monitoring component 50 includes a voltage monitoring unit 51 and two conductive connectors 52, and the voltage monitoring unit 51 is electrically connected to different conductive plates 41 through different conductive connectors 52. That is, in this embodiment, the monitoring component 50 monitors the voltage of the two conductive plates 41 through the voltage monitoring unit 51, thereby monitoring the thermal runaway of the battery 20. In this embodiment, the battery 20 casing is connected to the positive electrode, thus energizing the battery 20 casing and ensuring that the conductive plates 41 are energized. Furthermore, the monitoring component 50 can monitor the conductive plates 41 during the charging and discharging process of the battery 20 using the charge and discharge control system 60. If thermal runaway occurs in the battery 20, the conductive plates 41 detach from the battery 20 casing, and the voltage monitoring unit 51 detects that the voltage of the conductive plates 41 is 0.

[0041] Of course, in the above embodiments, the voltage monitoring unit 51 and the conductive connector 52 can be connected by a wire.

[0042] Of course, such as Figure 6 As shown, in this application, the voltage monitoring unit 51 can also monitor one of the conductive plates 41 using only one conductive connector 52. Alternatively, if one of the conductive plates 41 separates from the battery casing 20, it can be determined that the battery has experienced thermal runaway.

[0043] Specifically, the guide block 53 is made of insulating material. This arrangement ensures that the guide block 53 does not affect the monitoring effect of the voltage monitoring unit 51 on the conductive sheet 41, thereby guaranteeing the performance and accuracy of the monitoring component 50.

[0044] In one specific embodiment of this application, there are two guide blocks 53, each corresponding to one conductive connector 52, which are disposed opposite to each other on the battery 20. Furthermore, there are two conductive sheets 41. That is, in this embodiment, there is a one-to-one correspondence between the guide blocks 53, the conductive connectors 52, and the conductive sheets 41. Of course, in this application, one guide block 53 can also be provided, and the guide block 53 can have two guide rails corresponding to the two conductive connectors 52.

[0045] Preferably, the slide 531 extends vertically. This arrangement ensures that the slide 531 only guides the movement of the conductive connector 52 without creating resistance to its movement, thus guaranteeing the sensitivity of the monitoring component 50.

[0046] Optionally, the insulating body 10 is provided with a clearance opening 11 corresponding to the electrode 21 of the battery 20. This arrangement ensures that the insulating body 10 can be more easily attached to the top surface without interfering with the electrode 21 of the battery 20. In this application, two clearance openings 11 are generally provided, corresponding to the positive and negative terminals of the battery 20, respectively.

[0047] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0048] 1. Effectively solves the problem of poor prediction performance of battery thermal runaway in existing technologies;

[0049] 2. Simple structure and stable performance.

[0050] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0051] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0052] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0053] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An insulating component, characterized in that, include: An insulating body (10) is disposed on the side of the battery (20) having an explosion-proof valve (30); A conductive part (40) is disposed on the insulating body (10), and the conductive part (40) is electrically connected to the casing of the battery (20), and at least the portion of the insulating body (10) corresponding to the conductive part (40) can drive the conductive part (40) to move relative to the battery (20).

2. The insulating component according to claim 1, characterized in that, The insulating component also includes a monitoring component (50), at least a portion of which is electrically connected to the side of the conductive portion (40) away from the battery (20).

3. The insulating component according to claim 2, characterized in that, The conductive part (40) includes at least two spaced conductive sheets (41), and the conductive sheets (41) are electrically connected to the battery (20) and the monitoring component (50), respectively.

4. The insulating component according to claim 3, characterized in that, There are two conductive sheets (41), and the two conductive sheets (41) are respectively disposed on a set of oppositely disposed sides of the insulating body (10).

5. The insulating component according to claim 4, characterized in that, The two conductive sheets (41) are located between the two electrodes (21) of the battery (20).

6. The insulating component according to claim 3, characterized in that, The monitoring component (50) includes a voltage monitoring unit (51) and at least one conductive connector (52), and the voltage monitoring unit (51) is electrically connected to the conductive sheet (41) through the conductive connector (52).

7. The insulating component according to claim 6, characterized in that, The monitoring component (50) also includes a guide block (53) disposed on the battery (20). The guide block (53) is provided with a groove (531) corresponding to the conductive connector (52). One end of the conductive connector (52) extends into the groove (531) and can move along the groove (531).

8. The insulating element according to claim 7, characterized in that, The guide block (53) is made of insulating material; and / or There are two guide blocks (53), and the two guide blocks (53) are respectively disposed opposite to the two conductive connectors (52) on the battery (20); and / or The groove (531) extends in the vertical direction.

9. The insulating element according to any one of claims 1 to 8, characterized in that, The insulating body (10) is provided with an avoidance opening (11) corresponding to the electrode (21) of the battery (20).

10. A battery, characterized in that, An insulating element having any one of claims 1 to 9.

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