Battery, electric equipment and battery detection device

Abstract

The invention is suitable for the technical field of batteries, and provides a battery, electric equipment and a battery detection device.The battery comprises the battery detection device used for detecting collision information of the battery, and the battery detection device comprises a power supply interface and a detection module connected with the power supply interface; the detection module comprises at least one detection loop, the detection loop comprises a detection electrode pair and a load element connected with the detection electrode pair, the detection electrode pair comprises a first electrode and a second electrode, and the detection module controls the first electrode and the second electrode to be connected under the condition that the battery is deformed so as to conduct the detection loop and generate detection information. The detection information can prompt a user that the battery is deformed or the battery deformation is too large, and the user can respond to stop driving and overhaul the battery under the condition that the user can reach the battery deformation. Therefore, the timeliness of battery detection is improved, and the safety of battery use is improved.

Description

Technical Field

[0001] The present application belongs to the field of battery technology, and more specifically, relates to a battery and a battery detection device. Background Art

[0002] In order to lower the center of gravity of the vehicle, the power battery is usually mounted on the bottom of the vehicle and grouped with the chassis. When the vehicle is driving at high speed, it will often encounter obstacles such as stones and earth mounds, causing the chassis to be collided and damaged to varying degrees. At the same time, it will cause the battery to be squeezed and deformed, and the structure to be damaged. In severe cases, it will cause internal battery leakage, short circuit, overlap, fire and explosion, threatening the personal safety of the driver and passengers. However, the existing battery design has no collision detection. Even if impact deformation such as bottom collision occurs, it may cause greater harm if the driver does not discover it in time. How to effectively and accurately detect battery failure deformation is a problem that needs to be solved in the field of battery safety. Summary of the invention

[0003] In view of the above problems, the embodiments of the present application provide a battery and a battery detection device, which can detect the deformation of the battery and improve the safety of the battery.

[0004] In the first aspect, the embodiment of the present application provides a battery, including a battery detection device for detecting collision information of the battery, the battery detection device including a power supply interface and a detection module connected to the power supply interface; the detection module includes at least one detection circuit, the detection circuit includes a detection electrode pair and a load element connected to the detection electrode pair, the detection electrode pair includes a first electrode and a second electrode, and the detection module controls the first electrode to connect with the second electrode to conduct the detection circuit and generate detection information when the battery is deformed. It can be understood that the battery detection device of the present application can be set on the outer surface or outside of the battery. When the battery detection device is not pressed or the pressure is too small, the first electrode and the second electrode are in a disconnected state, and the detection circuit is in a disconnected state. When the battery detection device is pressed or the pressure is too large, the first electrode and the second electrode are connected in response to the pressure condition, and the detection circuit is turned on and generates detection information. The detection information can prompt the user that the battery has been deformed or the battery is too deformed, and the user can respond to stop driving and repair the battery when it is accessible. In this way, the timeliness of battery detection is improved and the safety of battery use is improved.

[0005] In some embodiments, the detection module includes multiple detection circuits, at least two detection circuits are set at different detection positions, and the load element includes a resistor element connected to the first electrode or the second electrode. In response to at least one detection circuit being turned on, the detection module generates detection information. It can be understood that the detection circuit can be set at multiple different positions of the battery, and each detection circuit can be connected in parallel. When the position where a detection circuit is set is subjected to pressure or the pressure is too large, the first electrode and the second electrode of the detection circuit are connected in response to this pressure condition, and the detection circuit is turned on, and the entire detection module can generate detection information. In this way, multiple detection circuits are set, and multi-position dimensional detection can be performed, so that the battery detection device of the present application performs multi-position detection on the battery, which improves the safety of battery use. In some embodiments, the load element includes a photoelectric element connected to the first electrode or the second electrode, and the photoelectric elements of at least two detection circuits are set at different detection positions. The photoelectric element indicates the detection position when the detection circuit is turned on. In some embodiments, the photoelectric element can be a light emitting diode, and each detection circuit is set at a different detection position of the battery. A detection circuit is connected to at least one light emitting diode. When the first electrode and the second electrode of the detection circuit are turned on due to pressure, the light emitting diode of the detection circuit is turned on and lights up. The light emitting diode is set together with the detection circuit where it is located at a detection position. In this way, the detection position where the corresponding battery is deformed can be intuitively displayed.

[0006] In some embodiments, the load element includes a photoelectric element connected to the first electrode or the second electrode, and the photoelectric element indicates the detection position when the detection circuit is turned on. In some embodiments, the photoelectric element can be a light-emitting diode, and each detection circuit is set at a different detection position of the battery. A detection circuit is connected to at least one light-emitting diode. When the first electrode and the second electrode of the detection circuit are turned on due to pressure compression, the light-emitting diode of the detection circuit is turned on and lit. Different detection circuits can be connected to light-emitting diodes that emit light of different colors. Each photoelectric element can be set at a detection position separately, or can be set together at a position convenient for the user to observe, such as being concentrated on a battery module or a side of the battery. The specific setting position is not limited here. In this way, the light-emitting diodes of different colors can be used to judge that the specific detection circuit where the light-emitting diode is located has been subjected to pressure compression or excessive pressure compression, and the position where the specific detection circuit is set or the corresponding detection position has been deformed.

[0007] In some embodiments, the detection module is connected to the processing module, and the processing module includes:

[0008] A calibration information acquisition unit, used to acquire multiple groups of calibration information, where a group of calibration information at least includes calibration position information and calibration current information associated with the calibration position information;

[0009] The information matching unit is used to obtain the calibration position information associated with the calibration current information when the difference between the detection current information and the calibration current information of the detection information is less than a preset value, so as to obtain the target position information of the battery deformation.

[0010] It is understandable that the load elements of different detection loops can be configured with resistors of different resistance values, or the resistance values ​​of some load elements are the same, which is not limited here, and at least multiple detection loops can be connected in parallel. Taking the detection module including two detection loops as an example, when the detection loop corresponding to the first detection position is turned on, the detection module generates first current information, when the detection loop corresponding to the second detection position is turned on, the detection module generates second current information, when the detection loop corresponding to the first detection position and the detection loop corresponding to the second detection position are both turned on, the detection module generates third current information, and the first current information, the second current information and the third current information are different.

[0011] The above example includes three groups of calibration information, namely, the first group of calibration information including the first calibration position information and the first current information (i.e., the first calibration current information associated with the first calibration position information) corresponding to the first detection position, the second group of calibration information including the second calibration position information and the second current information (i.e., the second calibration current information associated with the second calibration position information) corresponding to the second detection position, and the third group of calibration information including the third calibration position information and the third current information (i.e., the third calibration current information associated with the third calibration position information) corresponding to the case where the first detection position and the second detection position are detected to be conductive. When the detection module generates the first current information, the battery detection device can determine that the first detection position is deformed due to pressure, and when the detection module generates the third current information, the battery detection device can determine that the first detection position and the second detection position corresponding to the third calibration position information are both deformed due to pressure. In this way, the detection circuit is set at different detection positions. By configuring different detection circuit conductions, or different combinations of detection circuit conductions to generate currents of different sizes, the calibration position information can be conveniently associated with the current value close to the calibration current information, thereby quickly obtaining the detection position where pressure deformation occurs, that is, the target position information.

[0012] In some embodiments, there are certain errors in the detection process of the battery detection device. For example, when the difference between the current information detected by the detection module, i.e., the detection current information and the calibration current information, is less than a preset value, the calibration position information associated with the calibration current information is obtained to obtain the target position information of the battery deformation. The preset value can be a specific value such as 0.05 amperes, or it can be a range, which is not limited here. In this way, the battery detection device can also realize rapid detection of the battery deformation position under the condition of reasonable allowable detection error, thereby improving the efficiency of battery safety detection.

[0013] In some embodiments, the processing module is arranged in the battery management system or in the electronic controller unit. It is understandable that the battery detection device of the present application may also include a processing module, or the battery detection device does not include a processing module, and the processing module that realizes the processing function of the battery detection device is arranged in the battery management system or in the electronic controller unit, thus reducing the design complexity and cost of the battery detection device.

[0014] In some embodiments, the power supply interface is connected to the battery management system. It is understandable that the battery detection device can include a connection with the battery management system through the power supply interface, and the battery detection device can reuse the power supply module with the battery management system, which simplifies the design and reduces the cost.

[0015] In some embodiments, the battery detection device also includes a power supply module, and the detection module is connected to the power supply module via a power supply interface. It is understandable that the battery detection device also includes a power supply module, so there is no need to reuse the power supply module with the battery management system, reducing the wiring connection of the battery detection device. In some embodiments, it also includes an alarm trigger module, and the alarm trigger module is used to generate alarm information based on the detection information. The alarm trigger module is connected to the detection module or to the processing module. It is understandable that the battery detection device of the present application generates alarm information based on the detection information by setting an alarm trigger module, and can quickly respond to information that the battery module or battery is deformed under pressure.

[0016] In some embodiments, the first electrode and the second electrode are arranged opposite to each other. It is understandable that the first electrode and the second electrode can be arranged on different surfaces, such as the first electrode is arranged on the surface of the battery module, and the second electrode is arranged on the side of the box structure close to the surface of the battery module. The two electrodes can also be arranged on the surface of other objects away from the surface of the battery or the battery module. The specific arrangement position is not limited here.

[0017] In some embodiments, each first electrode is separately arranged, and at least two second electrodes are arranged in common; or each second electrode is separately arranged, and at least two first electrodes are arranged in common. It can be understood that the second electrodes of different detection circuits are arranged in common, which reduces the contact difficulty between each first electrode and the second electrode, that is, increases the sensitivity of the detection circuit conduction.

[0018] In some embodiments, the first electrode is provided with a conductive member, which is arranged in the direction of the second electrode; or the second electrode is provided with a conductive member, which is arranged in the direction of the first electrode; or both the first electrode and the second electrode are provided with a conductive member. It can be understood that the electrodes are provided with conductive members, which improves the response speed of the two electrodes in the detection circuit.

[0019] In some embodiments, the battery of the present application includes at least a battery module, and the detection circuit is arranged on the outer surface or outside of the battery module. It can be understood that the battery detection device can be arranged in different ways.

[0020] In some embodiments, the battery includes a box and a battery module contained in the box, and the detection circuit is arranged on the outer surface or outside of the battery module. It can be understood that the battery detection device can be arranged in different ways.

[0021] On the other hand, the present application provides a battery detection device for detecting collision information of a battery, the battery detection device includes a power supply interface and a detection module connected to the power supply interface; the detection module includes at least one detection circuit, the detection circuit includes a detection electrode pair and a load element connected to the detection electrode pair, the detection electrode pair includes a first electrode and a second electrode, and the detection module controls the first electrode to connect with the second electrode to conduct the detection circuit and generate detection information when the battery is deformed. It can be understood that the battery detection device of the present application can be set on the outer surface or outside of the battery. When the battery detection device is not pressed or the pressure is too small, the first electrode and the second electrode are in a disconnected state, and the detection circuit is in a disconnected state. When the battery detection device is pressed or the pressure is too large, the first electrode and the second electrode are connected in response to the pressure condition, and the detection circuit is turned on and generates detection information. The detection information can prompt the user that the battery has been deformed or the battery is too deformed, and the user can respond to stop driving and repair the battery when it is accessible. In this way, the timeliness of battery detection is improved and the safety of battery use is improved.

[0022] The battery provided by the present application includes a battery detection device for detecting collision information of the battery. The battery detection device can be arranged on the outer surface or outside of the battery. When there is no pressure on the battery detection device or the pressure is too small, the first electrode and the second electrode are in a disconnected state, and the detection circuit is in a disconnected state. When the battery detection device is under pressure or the pressure is too large, the first electrode and the second electrode are connected in response to the pressure condition, and the detection circuit is turned on and generates detection information. The detection information can prompt the user that the battery has been deformed or the battery has been deformed too much, and the user can respond to stop driving and inspect the battery when it is within reach. In this way, the timeliness of battery detection is improved and the safety of battery use is improved.

[0023] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 This is a schematic diagram of the structure of a battery according to an embodiment of the present application;

[0026] Figure 2 A structural schematic diagram of a detection circuit according to an embodiment of the present application;

[0027] Figure 3 Another structural schematic diagram of a battery according to an embodiment of the present application;

[0028] Figure 4 This is another structural schematic diagram of a battery according to an embodiment of the present application;

[0029] Figure 5 Another structural schematic diagram of a detection circuit according to an embodiment of the present application;

[0030] Figure 6 A structural schematic diagram of a detection module according to an embodiment of the present application;

[0031] Figure 7 This is another structural schematic diagram of a detection circuit according to an embodiment of the present application;

[0032] Figure 8A structural schematic diagram of a detection circuit according to an embodiment of the present application;

[0033] Fig. 9 A structural schematic diagram of a detection circuit according to an embodiment of the present application;

[0034] Fig.10 Another structural schematic diagram of a detection circuit according to an embodiment of the present application;

[0035] In the drawings, the drawings are not necessarily drawn to scale.

[0036] Among them, the reference numerals in the figure are:

[0037] 10-battery; 20-battery detection device; 21-detection module; 30-processing module; 31-calibration information acquisition unit; 32-information matching unit; 22-detection circuit; 221-insulating frame; 23-detection electrode pair; 231-first electrode; 232-second electrode; 2311-conductive member; 24-load element; 241-resistance element; 242-photoelectric element; 25-power supply interface; 40-power supply module; 50-alarm trigger module. DETAILED DESCRIPTION

[0038] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thoroughly and comprehensively understood.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0040] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0041] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0042] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0043] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0044] With the development of battery technology, batteries are used in more and more fields and gradually replace traditional petrochemical energy in areas such as automotive power. Batteries can store chemical energy and controllably convert chemical energy into electrical energy. In recyclable batteries, active materials can be activated by charging after discharge for continued use.

[0045] With the development of electric vehicles in the Qing Dynasty, in order to lower the center of gravity of the vehicle, the power battery is usually mounted on the bottom of the vehicle and grouped with the chassis. When the vehicle is driving at high speed, it will often encounter obstacles such as stones and earth mounds, causing the chassis to be collided and damaged to varying degrees. At the same time, it will cause the battery to be squeezed and deformed, the structure to be damaged, and in severe cases, it will cause internal battery leakage, short circuit, overlap, fire and explosion, threatening the personal safety of the driver and passengers. However, the battery design without collision detection in related technologies may cause greater harm even if impact deformation such as bottom collision occurs because the driver fails to discover it in time.

[0046] Based on the above considerations, the present application provides a battery and a battery detection device. The battery provided in one embodiment of the present application includes a battery detection device for detecting collision information of the battery. The battery detection device includes a power supply interface and a detection module connected to the power supply interface; the detection module includes at least one detection circuit, the detection circuit includes a detection electrode pair and a load element connected to the detection electrode pair, the detection electrode pair includes a first electrode and a second electrode, and the detection module controls the first electrode to connect with the second electrode to conduct the detection circuit and generate detection information when the battery is deformed. It can be understood that the battery detection device of the present application can be set on the outer surface or outside of the battery. When the battery detection device is not pressed or the pressure is too small, the first electrode and the second electrode are in a disconnected state, and the detection circuit is in a disconnected state. When the battery detection device is pressed or the pressure is too large, the first electrode and the second electrode are connected in response to the pressure condition, and the detection circuit is turned on and generates detection information. The detection information can prompt the user that the battery has been deformed or the battery is too deformed, and the user can respond to stop driving and repair the battery when it is accessible. In this way, the timeliness of battery detection is improved and the safety of battery use is improved.

[0047] The battery disclosed in the embodiment of the present application can be used for electrical equipment using the battery as a power source or various energy storage systems using the battery as an energy storage element. An electrical equipment provided in the present application may be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, and the like. Among them, electric toys may include fixed or mobile electric toys, for example, game consoles, electric car toys, electric ship toys, and electric airplane toys, and the like, and spacecraft may include airplanes, rockets, space shuttles, and spacecrafts, and the like. For the convenience of explanation, the following embodiments are described by taking an electrical equipment of an embodiment of the present application as a vehicle as an example.

[0048] See also Figure 1-2 , Figure 1 A battery 10 shown in the figure includes a battery detection device 20 for detecting collision information of the battery 10, the battery detection device 20 includes a power supply interface 25 and a detection module 21 connected to the power supply interface 25; the detection module 21 includes at least one detection circuit 22, Figure 2The detection circuit 22 shown includes a detection electrode pair 23 and a load element 24 connected to the detection electrode pair 23. The detection electrode pair 23 includes a first electrode 231 and a second electrode 232. The detection module 21 controls the first electrode 231 to connect with the second electrode 232 to conduct the detection circuit 22 and generate detection information when the battery is deformed. It can be understood that the battery detection device 20 of the present application can be set on the outer surface or outside of the battery 10. When the battery detection device 20 is not pressed or the pressure is too small, the first electrode 231 and the second electrode 232 are in a disconnected state, and the detection circuit 22 is in a disconnected state. When the battery detection device 20 is pressed or the pressure is too large, the first electrode 231 and the second electrode 232 are connected in response to the pressure condition, and the detection circuit 22 is turned on and generates detection information. The detection information can prompt the user that the battery 10 has been deformed or the battery 10 has been deformed too much, and the user can respond to stop driving and inspect the battery 10 when it is accessible. In this way, the timeliness of the detection of the battery 10 is improved, and the safety of the use of the battery 10 is improved. See also Figure 3 In some embodiments, the detection module 21 includes multiple detection circuits 22, at least two detection circuits 22 are set at different detection positions, for example, the multiple detection circuits 22 can be respectively set on different surfaces of the battery 10, or can be set at different positions on the same surface for detection, the load element 24 includes a resistor element 241 connected to the first electrode 231 or the second electrode 232, and in response to at least one detection circuit 22 being turned on, the detection module 21 generates detection information. It can be understood that, please refer to Figure 6-10 , detection circuits 22 can be set at multiple different positions of the battery 10, and each detection circuit 22 can be connected in parallel. When the position where a detection circuit 22 is set is subjected to pressure or the pressure is too large, the first electrode 231 and the second electrode 232 of the detection circuit 22 are connected in response to this pressure condition, and the detection circuit 22 is turned on, and the entire detection module 21 can generate detection information. In this way, multiple detection circuits 22 are set, and detection in multiple positions can be performed, so that the battery detection device 20 of the present application can perform multi-position detection on the battery 10, which improves the safety of the battery 10.

[0049] See also Figure 5In some embodiments, the load element 24 includes a photoelectric element 242 connected to the first electrode 231 or the second electrode 232. The photoelectric elements 242 of at least two detection circuits 22 are set at different detection positions. The photoelectric element 242 indicates the detection position when the detection circuit 22 is turned on. In some embodiments, the photoelectric element 242 can be a light-emitting diode. Each detection circuit 22 is set at a different detection position of the battery 10. One detection circuit 22 is connected to at least one light-emitting diode. When the first electrode 231 and the second electrode 232 of the detection circuit 22 are turned on due to pressure, the light-emitting diode of the detection circuit 22 is turned on and lit. The light-emitting diode is set together with the detection circuit 22 where it is located at a detection position. In this way, the detection position corresponding to the deformation of the battery 10 can be intuitively displayed.

[0050] See also Figure 8 , Figure 8 What is presented is a structural schematic diagram of the detection circuit 22 of an embodiment (a schematic diagram of a non-circuit connection structure). In some embodiments, the load element 24 includes a photoelectric element 242 connected to the first electrode 231 or the second electrode 232, and the photoelectric element 242 indicates the detection position when the detection circuit 22 is turned on.

[0051] In some embodiments, the photoelectric element 242 may be a light emitting diode, and each detection circuit 22 is set at a different detection position of the battery 10. A detection circuit 22 is connected to at least one light emitting diode. When the first electrode 231 and the second electrode 232 of the detection circuit 22 are turned on due to pressure, the light emitting diode of the detection circuit 22 is turned on and lights up. Different detection circuits 22 may be connected to light emitting diodes that emit light of different colors. Each photoelectric element 242 may be set at a detection position respectively, or may be set together at a position convenient for the user to observe, such as being concentrated on a battery module or a side of the battery 10. The specific setting position is not limited here. In this way, it can be judged by light emitting diodes of different colors that the specific detection circuit 22 where the light emitting diode is located is subjected to pressure or excessive pressure, and the position where the specific detection circuit 22 is set or the corresponding detection position is deformed.

[0052] See also Figure 3 In some embodiments, the detection module 21 is connected to the processing module 30, and the processing module 30 includes:

[0053] The calibration information acquisition unit 31 is used to acquire multiple groups of calibration information, where a group of calibration information at least includes calibration position information and calibration current information associated with the calibration position information;

[0054] The information matching unit 32 is used to obtain the calibration position information associated with the calibration current information when the difference between the detection current information and the calibration current information of the detection information is less than a preset value, so as to obtain the target position information of the battery 10 where the deformation occurs.

[0055] Understandable, see Figure 6 In some embodiments, the load elements 24 of different detection loops 22 may be configured with resistors of different resistance values, or the resistance values ​​of some load elements 24 may be the same, which is not limited here, and at least multiple detection loops 22 may be connected in parallel. Taking the detection module 21 including two detection loops 22 as an example, when the detection loop 22 corresponding to the first detection position is turned on, the detection module 21 generates first current information, when the detection loop 22 corresponding to the second detection position is turned on, the detection module 21 generates second current information, when the detection loop 22 corresponding to the first detection position and the detection loop 22 corresponding to the second detection position are both turned on, the detection module 21 generates third current information, and the first current information, the second current information and the third current information are different.

[0056] The above example includes three groups of calibration information, namely, a first group of calibration information including first calibration position information and first current information (i.e., first calibration current information associated with the first calibration position information) corresponding to the first detection position, a second group of calibration information including second calibration position information and second current information (i.e., second calibration current information associated with the second calibration position information) corresponding to the second detection position, and a third group of calibration information including third calibration position information and third current information (i.e., third calibration current information associated with the third calibration position information) corresponding to the case where the first detection position and the second detection position are detected to be conductive. When the detection module 21 generates the first current information, the battery detection device 20 can determine that the first detection position is deformed due to pressure, and when the detection module 21 generates the third current information, the battery detection device 20 can determine that the first detection position and the second detection position corresponding to the third calibration position information are both deformed due to pressure. In this way, the detection circuit 22 is set at different detection positions. By configuring different detection circuits 22 to be turned on, or different combinations of detection circuits 22 to be turned on to generate currents of different sizes, the calibration position information can be conveniently associated with the current value close to the calibration current information, thereby quickly obtaining the detection position where pressure deformation occurs, that is, the target position information.

[0057] In some embodiments, there are certain errors in the detection process of the battery detection device 20. For example, when the difference between the current information detected by the detection module 21, i.e., the detection current information and the calibration current information, is less than a preset value, the calibration position information associated with the calibration current information is obtained to obtain the target position information of the battery 10 where the deformation occurs. The preset value can be a specific value such as 0.05 amperes, or a range, which is not limited here. In this way, the battery detection device 20 can also realize rapid detection of the deformation position of the battery 10 under the condition of reasonable allowable detection errors, thereby improving the safety detection efficiency of the battery 10.

[0058] See also Figure 4 In some embodiments, the processing module 30 is disposed in a battery management system or in an electronic controller unit. It is understandable that the battery detection device 20 of the present application may also include a processing module 30, or the battery detection device 20 does not include the processing module 30, and the processing module 30 that implements the processing function of the battery detection device 20 is disposed in a battery management system or in an electronic controller unit, thereby reducing the design complexity and cost of the battery detection device 20.

[0059] In some embodiments, the power supply interface 25 is connected to the battery management system. It is understandable that the battery detection device 20 can include a connection with the battery management system through the power supply interface 25, and the battery detection device 20 can reuse the power supply module 40 with the battery management system, which simplifies the design and reduces the cost.

[0060] In some embodiments, the battery detection device 20 further includes a power supply module 40, and the detection module 21 is connected to the power supply module 40 via the power supply interface 25. It can be understood that the battery detection device 20 further includes a power supply module 40, so that there is no need to reuse the power supply module 40 with the battery management system, thereby reducing the wiring connection of the battery detection device 20.

[0061] In some embodiments, an alarm trigger module 50 is further included, and the alarm trigger module 50 is used to generate alarm information according to the detection information, and the alarm trigger module 50 is connected to the detection module 21 or the processing module 30. It can be understood that the battery detection device 20 of the present application generates alarm information according to the detection information by setting the alarm trigger module 50, and can quickly respond to the information that the battery module or the battery 10 is deformed by pressure.

[0062] See also Figure 7-8 In some embodiments, the first electrode 231 and the second electrode 232 are disposed opposite to each other. It can be understood that the first electrode 231 and the second electrode 232 can be disposed on different surfaces.

[0063] In some embodiments, the battery 10 includes a box body (not shown), a battery module cooling water plate (not shown) accommodated in the box body, the box body includes a bottom cover (not shown), an upper cover (not shown) and a side wall structure connecting the bottom cover and the upper cover, the battery module includes a first surface and a second surface arranged opposite to each other, a cooling water plate arranged on the first surface or / and the second surface of the battery module, the battery top cover is arranged on a side close to the first surface of the battery module, the first electrode 231 and the second electrode 232 are arranged oppositely through an insulating frame 221, the first electrode 231 is arranged on the surface of the battery module, and the second electrode 232 is arranged on the side of the surface of the box structure close to the battery module, and the two electrodes can also be arranged on the surface of other objects away from the battery 10 or the surface of the battery module, such as between the cooling water plate and the bottom cover of the battery 10 or between the cooling water plate and the upper cover of the battery 10, as long as the detection purpose of the present application can be achieved, and the specific setting position is not limited here.

[0064] See also Fig. 9 and Fig.10 In some embodiments, each first electrode 231 is separately provided, and at least two second electrodes 232 are provided in common; or each second electrode 232 is separately provided, and at least two first electrodes 231 are provided in common. It can be understood that the second electrodes 232 of different detection circuits 22 are provided in common, which reduces the contact difficulty between each first electrode 231 and the second electrode 232, that is, increases the sensitivity of the detection circuit 22 being turned on.

[0065] In some embodiments, the first electrode 231 is provided with a conductive member 2311, and the conductive member 2311 is provided in the direction of the second electrode 232; or the second electrode 232 is provided with a conductive member 2311, and the conductive member 2311 is provided in the direction of the first electrode 231; or the first electrode 231 and the second electrode 232 are both provided with a conductive member 2311. It can be understood that the electrodes are provided with the conductive member 2311, which improves the response speed of the two electrodes in the detection circuit 22.

[0066] In some embodiments, the battery 10 of the present application includes at least a battery module, and the detection circuit 22 is arranged on the outer surface or outside of the battery module. It is understandable that the battery detection device 20 can be arranged in different ways. It is understandable that the battery 10 of the present application can be a battery cell, a battery module, or a battery pack including at least one battery module, and the specific form is not limited here.

[0067] In some embodiments, the detection circuit 22 is disposed on the outer surface or outside of the battery 10. It is understandable that the battery detection device 20 can be configured in different ways.

[0068] The battery 10 provided in the present application includes a battery detection device 20 for detecting collision information of the battery 10. The battery detection device 20 can be arranged on the outer surface or outside of the battery 10. When the battery detection device 20 is not under pressure or the pressure is too small, the first electrode 231 and the second electrode 232 are in a disconnected state, and the detection circuit 22 is in a disconnected state. When the battery detection device 20 is under pressure or the pressure is too large, the first electrode 231 and the second electrode 232 are connected in response to this pressure condition, and the detection circuit 22 is turned on and generates detection information. The detection information can prompt the user that the battery 10 has deformed or the battery 10 has deformed too much, and the user can respond to stop driving and inspect the battery when it is accessible. In this way, the timeliness of the detection of the battery 10 is improved, and the safety of the use of the battery 10 is improved.

[0069] On the other hand, see Figure 2 The present application provides a battery detection device 20 for detecting collision information of a battery 10. The battery detection device 20 includes a power supply interface 25 and a detection module 21 connected to the power supply interface 25; the detection module 21 includes at least one detection circuit 22, the detection circuit 22 includes a detection electrode pair 23 and a load element 24 connected to the detection electrode pair 23, the detection electrode pair 23 includes a first electrode 231 and a second electrode 232, and the detection module 21 controls the first electrode 231 to connect with the second electrode 232 to conduct the detection circuit 22 and generate detection information when the battery 10 is deformed. It can be understood that the battery detection device 20 of the present application can be set on the outer surface or outside of the battery 10. When the battery detection device 20 is not pressed or the pressure is too small, the first electrode 231 and the second electrode 232 are in a disconnected state, and the detection circuit 22 is in a disconnected state. When the battery detection device 20 is pressed or the pressure is too large, the first electrode 231 and the second electrode 232 are connected in response to the pressure condition, and the detection circuit 22 is turned on and generates detection information. The detection information can prompt the user that the battery 10 has been deformed or the battery 10 has been deformed too much, and the user can respond by stopping driving and inspecting the battery 10 if possible. In this way, the timeliness of the detection of the battery 10 is improved, and the safety of the use of the battery 10 is improved. It can be understood that the "battery 10 deformation" in this application can be that a battery module of the battery 10 is deformed when it is compressed or the pressure is too great, or it can be that other components of the battery 10 other than the battery module are deformed and displaced when they are compressed or the pressure is too great, and the specifics are not limited here.

[0070] See also Figure 6In some embodiments, the detection module 21 of the battery detection device 20 of the present application includes multiple detection circuits 22, at least two detection circuits 22 are set at different detection positions, and the load element 24 includes a resistor element 241 connected to the first electrode 231 or the second electrode 232. In response to at least one detection circuit 22 being turned on, the detection module 21 generates detection information. It can be understood that the detection circuits 22 can be set at multiple different positions of the battery 10, and each detection circuit 22 can be connected in parallel. When the position where a detection circuit 22 is set is subjected to pressure or the pressure is too large, the first electrode 231 and the second electrode 232 of the detection circuit 22 are connected in response to the pressure condition, and the detection circuit 22 is turned on, and the entire detection module 21 can generate detection information. In this way, multiple detection circuits 22 are set, and detection in multiple position dimensions can be performed, so that the battery detection device 20 of the present application performs multi-position detection on the battery 10, which improves the safety of the battery 10. It can be understood that the relevant embodiments of the battery detection device 20 of the present application refer to the above content.

[0071] It should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the embodiments of the present application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0072] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0073] It should be understood that the application of this application is not limited to the above examples. For ordinary technicians in this field, they can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to this application. Ordinary technicians in this field can understand that all or part of the processes of the above embodiments are implemented, and equivalent changes made according to the claims of this application still fall within the scope covered by this application.

Claims

1. A battery, characterized in that: A battery detection device for detecting collision information of the battery is included, wherein the battery detection device includes a power supply interface and a detection module connected to the power supply interface; The detection module includes at least one detection circuit, the detection circuit includes a detection electrode pair and a load element connected to the detection electrode pair, the detection electrode pair includes a first electrode and a second electrode, and when the battery is deformed, the detection module controls the first electrode to be connected to the second electrode to conduct the detection circuit and generate detection information.

2. The battery according to claim 1, characterized in that The detection module includes a plurality of detection circuits, at least two of which are arranged at different detection positions, the load element includes a resistor element connected to the first electrode or the second electrode, and in response to at least one of the detection circuits being turned on, the detection module generates the detection information.

3. The battery according to claim 1 or 2, characterized in that: The load element includes a photoelectric element connected to the first electrode or the second electrode. The photoelectric elements of at least two detection circuits are arranged at different detection positions. The photoelectric element indicates the detection position when the detection circuit is turned on.

4. The battery according to claim 2, characterized in that The load element includes a photoelectric element connected to the first electrode or the second electrode, and the photoelectric element indicates the detection position when the detection circuit is turned on.

5. The battery according to any one of claims 1 to 4, characterized in that: The detection module is connected to the processing module, and the processing module includes: A calibration information acquisition unit, used to acquire multiple groups of calibration information, wherein a group of calibration information at least includes calibration position information and calibration current information associated with the calibration position information; The information matching unit is used to obtain the calibration position information associated with the calibration current information when the difference between the detection current information of the detection information and the calibration current information is less than a preset value, so as to obtain the target position information of the battery deformation.

6. The battery according to claim 5, characterized in that The processing module is arranged in a battery management system or in an electronic controller unit.

7. The battery according to claim 6, characterized in that The power supply interface is connected to the battery management system or the electronic controller unit.

8. The battery according to any one of claims 5 to 7, characterized in that: The battery detection device further comprises an alarm triggering module, which is used to generate alarm information according to the detection information, and the alarm triggering module is connected to the detection module or the processing module.

9. The battery according to any one of claims 1 to 8, characterized in that: The battery detection device also includes a power supply module, and the detection module is connected to the power supply module via the power supply interface.

10. The battery according to any one of claims 1 to 9, characterized in that: The first electrode and the second electrode are arranged opposite to each other.

11. The battery according to any one of claims 1 to 10, characterized in that: Each of the first electrodes is disposed separately, and at least two of the second electrodes are disposed in common; or Each of the second electrodes is disposed separately, and at least two of the first electrodes are disposed in common.

12. The battery according to any one of claims 1 to 11, characterized in that: The first electrode is provided with a conductive member, and the conductive member is arranged toward the direction of the second electrode; or, The second electrode is provided with a conductive member, and the conductive member is arranged toward the first electrode; or, The first electrode and the second electrode are both provided with a conductive element.

13. The battery according to any one of claims 1 to 12, characterized in that: The battery comprises a box and a battery module accommodated in the box, and the detection circuit is arranged on an outer surface or outside of the battery module.

14. The battery according to any one of claims 1 to 12, characterized in that: The battery includes a battery module, and the detection circuit is arranged on an outer surface or outside of the battery module.

15. An electrical equipment, characterized in that: A battery comprising any one of claims 1 to 14.

16. A battery detection device, characterized in that: Used to detect collision information of a battery, the battery detection device comprises a power supply interface and a detection module connected to the power supply interface; The detection module includes at least one detection circuit, the detection circuit includes a detection electrode pair and a load element connected to the detection electrode pair, the detection electrode pair includes a first electrode and a second electrode, and when the battery is deformed, the detection module controls the first electrode to be connected to the second electrode to conduct the detection circuit and generate detection information.

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