Detection device, battery and electric device

Abstract

A detection device (400), a battery (100), and an electric device, which belong to the technical field of detection. The detection device (400) comprises: a base (410) and a sensor (420), wherein the base (410) comprises one of a guide member and a sliding member; the sensor (420) is configured to be connected to the base (410) and comprises a sensor housing; the sensor housing comprises the other of the guide member and the sliding member, the guide member being configured to guide the sliding direction of the sliding member to enable the sensor (420) to move relative to the base (410) in a first direction (Z), wherein the guide member comprises a slide rail (411) and a groove (412); the sliding member comprises a sliding block (421) and a protrusion (422), and the sliding rail (411) is configure to guide the sliding direction of the sliding block (421); and the groove (412) is configured to guide the sliding direction of the protrusion (422). The sensor (420) is connected to the base (410) and can move relative to the base (410) in the first direction (Z), such that when the detection device (400) suffers from an impact, etc., the sensor (420) can move relative to the base (410) in the first direction (Z), thereby reducing the probability of the sensor (420) being damaged.

Description

Detection devices, batteries and electrical devices

[0001] Cross-references

[0002] This application refers to Chinese patent application No. 202311094730.8, filed on August 29, 2023, entitled “Detection device, battery and electrical device”, which is incorporated into this application in its entirety by reference. Technical Field

[0003] The present application relates to the field of detection technology, and in particular to a detection device, a battery, and an electrical device. Background Art

[0004] Energy conservation and emission reduction are key to the sustainable development of the automotive industry. Electric vehicles, due to their energy-saving and environmentally friendly advantages, have become an important component of the sustainable development of the automotive industry. For electric vehicles, battery technology is a key factor in their development.

[0005] As major manufacturers and users increasingly prioritize electric vehicle safety, battery manufacturers are implementing stricter and more comprehensive controls on potential defects during battery use. During battery use, if an electric vehicle is struck, the sensors associated with the battery can be damaged, posing a safety hazard and impacting battery safety. Beyond the battery industry, sensors can also be damaged by impact. This leaves room for improvement in related technologies, including detection devices.

[0006] Summary of the Invention

[0007] The present application aims to solve at least one of the technical problems in the background art. To this end, one object of the present application is to provide a detection device, a battery, and an electrical device to reduce the probability of damage to the sensor when it is hit.

[0008] An embodiment of a first aspect of the present application provides a detection device, comprising a base and a sensor. The base comprises one of a guide and a slider, the sensor is connected to the base, the sensor comprises a sensor housing, the sensor housing comprises the other of the guide and the slider, the guide being configured to guide the slider in a sliding direction so that the sensor can move in a first direction relative to the base; the guide comprising a slide rail and a groove, the slider comprising a slider and a protrusion, the slide rail being configured to guide the slider in a sliding direction, and the groove being configured to guide the protrusion in a sliding direction.

[0009] In the technical solution of the embodiment of the present application, the sensor is connected to the base and can move relative to the base in a first direction, so that when the detection device is subjected to an impact, the sensor can move in the first direction relative to the base, which can reduce the probability of the sensor being damaged. By including one of a guide member and a sliding member on the sensor housing and the base, the guide member guides the sliding direction of the sliding member so that the sensor can move in the first direction, which can reduce the friction between the sensor and the base, thereby improving the sensitivity of the sensor during movement, allowing the sensor to move quickly relative to the base in the first direction, and further reducing the probability of the sensor being damaged. The groove guides the sliding direction of the protrusion so that the sensor can move in the first direction, which can limit the distance and position that the sensor can move in the first direction, thereby improving the detection performance of the detection device.

[0010] In some embodiments, the detection device further includes an elastic element configured to apply an elastic force to the sensor in a first direction to define the position of the sensor relative to the base. By using the elastic element to apply an elastic force to the sensor in the first direction to define the position of the sensor relative to the base, vibration-induced shaking of the sensor can be reduced, thereby improving the detection sensitivity of the sensor.

[0011] In some embodiments, the elastic element includes a spring. The spring has a simple structure, is reliable to use, and is low in cost. Selecting a spring as the elastic element of the detection device can simplify the structure of the detection device and reduce the cost of the detection device.

[0012] In some embodiments, the base includes a guide structure for guiding the deformation of the spring. By guiding the deformation of the spring through the guide structure, the structure of the detection device can be made more stable.

[0013] In some embodiments, the guide structure includes a cylindrical structure. Using the cylindrical structure as the guide structure of the elastic element can make the structure of the detection device simpler.

[0014] In some embodiments, the elastic element includes a leaf spring. Using a leaf spring as the elastic element can make the elastic element easier to install, thereby further simplifying the structure of the detection device.

[0015] In some embodiments, the base includes a snap-fit ​​structure, and the base is connected to the side wall of the installation environment of the detection device via the snap-fit ​​structure. The base is connected to the side wall of the installation environment of the detection device via the snap-fit ​​structure, that is, the base is detachable, which makes installation of the base more convenient, and the number of bases can be increased or decreased as needed, thereby increasing the installation flexibility of the detection device and expanding the range of use of the detection device.

[0016] In some embodiments, the snap-fit ​​structure is asymmetrical about any plane perpendicular to the first direction. Arranging the snap-fit ​​structure to be asymmetrical about any plane perpendicular to the first direction facilitates installation when the base is mounted on a sidewall of an installation environment of the detection device, and ensures that the installation direction is correct.

[0017] In some embodiments, the sensor includes a detection probe and a wire. The detection probe is configured to detect whether the liquid level relative to the detection environment has reached a target height, and the wire is configured to transmit a detection signal to a control system. The detection probe detects whether the liquid level relative to the installation environment of the detection device has reached the target height, and transmits the detection signal to the control system via the wire, allowing the user to monitor the liquid conditions in the installation environment of the detection device in a timely manner.

[0018] An embodiment of the second aspect of the present application provides a battery, comprising a battery housing and the detection device of any of the above embodiments, wherein the base of the detection device is mounted on the inner surface of the side wall of the battery housing, and intersects with the bottom surface of the battery housing in a first direction. By connecting the base to the inner wall of the battery housing, the sensor is connected to the base and can move relative to the base along the first direction intersecting with the bottom surface of the battery housing, so that when the bottom surface of the battery housing is impacted, the sensor can move relative to the base in the first direction, thereby reducing the probability of the sensor being damaged when the battery housing is deformed.

[0019] In some embodiments, the sensor of the detection device includes a leakage detection sensor, which is configured to detect whether the leaked liquid in the battery casing has reached a target height relative to the bottom surface of the battery casing. By detecting whether the leaked liquid in the battery casing has reached a target height relative to the bottom surface of the battery casing by the leakage detection sensor, leakage in the battery can be detected in a timely manner and reported in a timely manner when the leakage reaches the predetermined height.

[0020] An embodiment of the third aspect of the present application provides an electrical device, which includes the battery in the above embodiment, and the battery is used to provide electrical energy.

[0021] 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

[0022] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on the drawings without paying creative work.

[0023] FIG1 is a schematic structural diagram of a vehicle according to some embodiments of the present application;

[0024] FIG2 is a schematic diagram of the exploded structure of a battery according to some embodiments of the present application;

[0025] FIG3 is a schematic diagram of the exploded structure of a battery cell according to some embodiments of the present application;

[0026] FIG4 is a schematic diagram of the structure of a detection device in some embodiments of the present application

[0027] FIG5 is a schematic diagram of the structure of a sensor according to some embodiments of the present application;

[0028] FIG6 is a schematic structural diagram of a base in some embodiments of the present application;

[0029] FIG7 is an exploded view of a detection device according to some embodiments of the present application;

[0030] FIG8 is a top view of FIG7;

[0031] FIG9 is a schematic structural diagram of another detection device according to some embodiments of the present application;

[0032] FIG10 is a left side view of FIG4 .

[0033] Description of reference numerals:

[0034] 1000. Vehicle;

[0035] 100, battery; 200, controller; 300, motor;

[0036] 10. Box body; 11. First part; 12. Second part;

[0037] 20. Battery cell; 21. End cap; 21a. Electrode terminal; 22. Housing; 23. Cell assembly; 23a. Tab;

[0038] 400, detection device; 410, base; 420, sensor; 430, elastic element; 421, slider; 422, protrusion; 423, detection probe; 424, wire; 411, slide rail; 412, groove; 413, snap-fit ​​structure; 414, cylindrical structure. DETAILED DESCRIPTION

[0039] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art 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" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0041] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0042] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0043] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0044] 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).

[0045] 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. They 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. Therefore, they should not be understood as limiting the embodiments of the present application.

[0046] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0047] Currently, market developments indicate that power batteries are becoming increasingly widely used. They are not only used in energy storage systems such as hydropower, thermal, wind, and solar power plants, but are also widely used in electric vehicles like electric bicycles, electric motorcycles, and electric vehicles, as well as in military equipment and aerospace. As power battery applications continue to expand, market demand is also growing.

[0048] For example, batteries used in new energy vehicles are often inspected during use using a detection device comprised of a flexible thin-film circuit. This device is glued to the battery and securely positioned. However, this device can be easily damaged if the battery's bottom is deformed due to impacts or scratches.

[0049] Based on the above considerations, in order to solve the problem that the detection device is easily damaged, the sensor is connected to the base and can move along a first direction relative to the base. When the detection device is hit, the sensor can move in the first direction relative to the base, thereby reducing the probability of the sensor being damaged.

[0050] The detection device disclosed in the embodiments of this application can be used in the battery production and manufacturing process. The batteries detected or produced can be used in, but are not limited to, electrical devices such as vehicles, ships, or aircraft. The power supply system of the electrical device can be composed of a battery disclosed in this application.

[0051] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device according to an embodiment of the present application.

[0052] Please refer to Figure 1, which is a schematic structural diagram of a vehicle 1000 provided in some embodiments of the present application. The vehicle 1000 can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 100 is provided inside the vehicle 1000, and the battery 100 can be provided at the bottom, head or tail of the vehicle 1000. The battery 100 can be used to power the vehicle 1000. For example, the battery 100 can serve as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery 100 to power the motor 300, for example, for starting, navigating and driving the vehicle 1000.

[0053] In some embodiments of the present application, the battery 100 can serve not only as an operating power source for the vehicle 1000, but also as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0054] Please refer to Figure 2, which is a schematic diagram of the exploded structure of a battery according to some embodiments of the present application. Battery 100 includes a housing 10 and battery cells 20, with battery cells 20 housed within housing 10. Housing 10 provides storage space for battery cells 20 and can have various structures. In some embodiments, housing 10 can include a first portion 11 and a second portion 12, which overlap each other and together define a storage space for battery cells 20. Second portion 12 can be a hollow structure with one end open. First portion 11 can be a plate-like structure, with first portion 11 overlapping the open side of second portion 12, so that the first and second portions 11 and 12 together define a storage space. Alternatively, first portion 11 and second portion 12 can each be a hollow structure with one end open, with the open side of first portion 11 overlapping the open side of second portion 12. Housing 10 formed by first portion 11 and second portion 12 can have various shapes, such as a cylinder or a rectangular parallelepiped.

[0055] In the battery 100, there may be multiple battery cells 20, and the multiple battery cells 20 may be connected in series, in parallel, or in a hybrid connection. A hybrid connection refers to a combination of series and parallel connections among the multiple battery cells 20. The multiple battery cells 20 may be directly connected in series, in parallel, or in a hybrid connection, and then the entire battery cell 20 may be housed within the housing 10. Alternatively, the battery 100 may be constructed by first connecting multiple battery cells 20 in series, in parallel, or in a hybrid connection to form a battery module, which is then connected in series, in parallel, or in a hybrid connection to form a complete battery module, and then housed within the housing 10. The battery 100 may also include other structures, such as a busbar assembly for electrically connecting the multiple battery cells 20.

[0056] Each battery cell 20 may be a secondary battery or a primary battery, and may also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 20 may be cylindrical, flat, rectangular, or in other shapes.

[0057] Please refer to Figure 3, which is a schematic diagram of the exploded structure of a battery cell 20 provided in some embodiments of the present application. A battery cell 20 is the smallest unit that makes up a battery. As shown in Figure 3, a battery cell 20 includes an end cap 21, a housing 22, a cell assembly 23, and other functional components.

[0058] The end cap 21 refers to a component that covers the opening of the shell 22 to isolate the internal environment of the battery cell 20 from the external environment. Without limitation, the shape of the end cap 21 can be adapted to the shape of the shell 22 to match the shell 22. Optionally, the end cap 21 can be made of a material with a certain hardness and strength (such as an aluminum alloy). In this way, the end cap 21 is not easily deformed when squeezed or collided, so that the battery cell 20 can have a higher structural strength and improved safety performance. Functional components such as electrode terminals 21a can be provided on the end cap 21. The electrode terminal 21a can be used to electrically connect to the battery cell assembly 23 for outputting or inputting electrical energy of the battery cell 20. In some embodiments, the end cap 21 can also be provided with a pressure relief mechanism for releasing internal pressure when the internal pressure or temperature of the battery cell 20 reaches a threshold. The material of the end cap 21 can also be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc. In some embodiments, an insulating member may be provided inside the end cap 21 to isolate the electrical connection components in the housing 22 from the end cap 21 to reduce the risk of short circuit. For example, the insulating member may be made of plastic, rubber, or the like.

[0059] The housing 22 is a component that cooperates with the end cap 21 to form the internal environment of the battery cell 20. This internal environment can be used to accommodate the battery cell assembly 23, electrolyte, and other components. The housing 22 and end cap 21 can be separate components. An opening can be provided in the housing 22, and the end cap 21 is placed over the opening to form the internal environment of the battery cell 20. Alternatively, the end cap 21 and housing 22 can be integrated. Specifically, the end cap 21 and housing 22 can form a common connection surface before other components are inserted into the housing. When the interior of the housing 22 needs to be enclosed, the end cap 21 is placed over the housing 22. The housing 22 can be of various shapes and sizes, such as a rectangular parallelepiped, a cylinder, or a hexagonal prism. Specifically, the shape of the housing 22 can be determined based on the specific shape and size of the battery cell assembly 23. The housing 22 can be made of a variety of materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, and plastic.

[0060] The battery cell assembly 23 is a component in the battery cell 20 where electrochemical reactions occur. One or more battery cell assemblies 23 may be contained in the shell 22. The battery cell assembly 23 is mainly formed by winding or stacking positive and negative electrode sheets, and a separator is usually provided between the positive and negative electrode sheets. The parts of the positive and negative electrode sheets with active substances constitute the main body of the battery cell assembly, and the parts of the positive and negative electrode sheets without active substances each constitute a tab 23a. The positive and negative electrode tabs may be located together at one end of the main body or respectively at both ends of the main body. During the charge and discharge process of the battery, the positive electrode active substance and the negative electrode active substance react with the electrolyte, and the tabs 23a connect the electrode terminals to form a current loop.

[0061] An embodiment of the present application provides a detection device. Figure 4 is a schematic structural diagram of a detection device according to some embodiments of the present application. As shown in Figure 4, the detection device 400 includes a base 410 and a sensor 420. The base 410 includes one of a guide and a sliding member, and the sensor 420 is used to connect with the base 410. The sensor 420 includes a sensor housing, and the sensor housing includes the other of a guide and a sliding member. The guide member is used to guide the sliding direction of the sliding member so that the sensor 420 can move relative to the base 410 along the first direction Z, wherein the guide member includes a slide rail 411 and a groove 412, and the sliding member includes a slider 421 and a protrusion 422. The slide rail 411 is used to guide the sliding direction of the slider 421, and the groove 412 is used to guide the sliding direction of the protrusion 422.

[0062] In the embodiment of the present application, the sensor 420 is movably connected to the base 410 to ensure that the sensor 420 can move relative to the base 410 along the first direction Z. For example, the sensor 420 and the base 410 can be connected by a slide rail and a slide groove. The sensor 420 and the base 410 can also be connected by a slide rail and a slider, or a protrusion and a groove. As shown in Figure 4, the sensor 420 can move relative to the base 410 along the first direction Z.

[0063] In an embodiment of the present application, by connecting the sensor 420 to the base 410 and being able to move along the first direction Z relative to the base 410, when the detection device 400 is subjected to an impact, the sensor 420 can move in the first direction Z relative to the base 410, thereby reducing the probability of the sensor 420 being damaged.

[0064] In the embodiment of the present application, one of the sensor housing and the base 410 may include a guide member, and the other may include a sliding member, the guide member being used to guide the sliding direction of the sliding member, thereby achieving a sliding connection effect between the sensor 420 and the base 410.

[0065] In an embodiment of the present application, by including one of a guide member and a sliding member on the sensor housing and the base 410, the guide member guides the sliding direction of the sliding member so that the sensor can move along the first direction Z, which can reduce the friction between the sensor 420 and the base 410, thereby improving the sensitivity of the sensor 420 during movement, so that the sensor 420 can move quickly along the first direction Z relative to the base 410, further reducing the probability of the sensor 420 being damaged.

[0066] According to some embodiments of the present application, the guide member includes a slide rail 411, and the sliding member includes a slider 421. The slide rail 411 guides the sliding direction of the slider 421 so that the sensor 420 can move along the first direction Z. For example, Figure 5 is a schematic structural diagram of the sensor in some embodiments of the present application, and Figure 6 is a schematic structural diagram of the base in some embodiments of the present application; as shown in Figure 5, the sensor 420 includes a sensor housing, and the sensor housing includes a slide rail 411, and the number of the slide rails 411 is two. As shown in Figure 6, the base 410 includes a slider 421. The number of the sliders 421 is the same as that of the slide rails 411, and the slide rails 411 guide the sliding direction of the slider 421 so that the sensor 420 can move along the first direction Z.

[0067] In the embodiment of the present application, the guide member adopts a slide rail 411 and the sliding member adopts a slider 421 . The slide rail 411 guides the sliding direction of the slider 421 so that the sensor 420 can move along the first direction Z, simplifying the structure of the detection device 400 .

[0068] According to some embodiments of the present application, the guide member includes a groove 412, and the sliding member includes a protrusion 422. The groove 412 guides the sliding direction of the protrusion 422, thereby enabling the sensor 420 to move along the first direction Z. For example, FIG5 is a schematic structural diagram of a sensor according to some embodiments of the present application, and FIG6 is a schematic structural diagram of a base according to some embodiments of the present application. As shown in FIG5 , the sensor 420 includes a sensor housing, which includes two protrusions 422. As shown in FIG6 , the base 410 includes grooves 412. The number of protrusions 422 is the same as the number of grooves 412. The grooves 412 guide the sliding direction of the protrusions 422, thereby enabling the sensor 420 to move along the first direction Z.

[0069] In the embodiment of the present application, the position of the groove 412 on the base 410 and the length of the groove 412 along the first direction Z jointly limit the range of movement of the sensor 420 along the first direction Z, while also allowing the sensor 420 to remain connected to the base 410 when moving along the first direction Z.

[0070] In the embodiment of the present application, the groove 412 guides the sliding direction of the protrusion 422 so that the sensor 420 can move along the first direction Z, which can limit the distance and position that the sensor 420 can move along the first direction Z, thereby improving the detection performance of the detection device 400.

[0071] According to some embodiments of the present application, the detection device 400 further includes an elastic element 430 , which is configured to apply an elastic force to the sensor 420 along the first direction Z to limit the position of the sensor 420 relative to the base 410 .

[0072] In the embodiment of the present application, when the sensor 420 moves relative to the base 410 in the first direction Z, it is generally because the detection device 400 is impacted, and the sensor 420 may shake due to the vibration. This problem can be solved by installing an elastic element 430 on the detection device 400. The elastic element 430 can apply an elastic force to the sensor 420 in the first direction Z, thereby limiting the position of the sensor 420 relative to the base 410.

[0073] As shown in FIG4 , one end of the elastic element 430 abuts against the sensor 420 , and the other end abuts against the base 410 . The elastic element 430 applies elastic force to the sensor 420 along the first direction Z, thereby limiting the position of the sensor 420 relative to the base 410 .

[0074] In the embodiment of the present application, by using the elastic element 430 to apply elastic force to the sensor 420 along the first direction Z to limit the position of the sensor 420 relative to the base 410, the shaking of the sensor 420 caused by vibration can be reduced, thereby improving the detection sensitivity of the sensor 420.

[0075] According to some embodiments of the present application, the elastic element 430 includes a spring.

[0076] In the embodiments of the present application, the spring undergoes significant elastic deformation when loaded, converting mechanical work or kinetic energy into deformation energy. Upon unloading, the spring's deformation disappears and returns to its original state, while the deformation energy is converted into mechanical work or kinetic energy.

[0077] In the embodiment of the present application, the spring has a simple structure, is reliable to use and has a low cost. Selecting a spring as the elastic element 430 of the detection device 400 can simplify the structure of the detection device 400 and reduce the cost of the detection device 400.

[0078] According to some embodiments of the present application, the base 410 includes a guide structure for guiding the deformation of the spring.

[0079] In an embodiment of the present application, the guide structure may be a guide rod or a cylindrical structure, etc. The guide structure cooperates with the spring to limit the moving direction of the spring. For example, the spring may be mounted on the guide structure, and the spring may move through the guide structure.

[0080] In the embodiment of the present application, the deformation of the spring is guided by the guide structure, so that the structure of the detection device 400 can be made more stable.

[0081] According to some embodiments of the present application, the guide structure includes a cylindrical structure 414 .

[0082] For example, FIG7 is an exploded view of a detection device according to some embodiments of the present application, and FIG8 is a top view of FIG7 . As shown in FIG8 , the guide structure is a cylindrical structure 414 .

[0083] In the embodiment of the present application, the cylindrical structure 414 is used as the guide structure of the elastic element 430, which can make the structure of the detection device 400 simpler.

[0084] According to some embodiments of the present application, the elastic element 430 includes a leaf spring.

[0085] In the embodiment of the present application, the leaf spring can absorb vibration and impact energy and can also control mechanical motion. The leaf spring can be easily integrated into the detection device 400, interacting with the sensor 420 and the base 410 to apply an elastic force to the sensor 420 along the first direction Z to define the position of the sensor 420 relative to the base 410.

[0086] For example, FIG9 is a schematic structural diagram of another detection device according to some embodiments of the present application. As shown in FIG9 , the elastic element 430 is a leaf spring.

[0087] In the embodiment of the present application, using a leaf spring as the elastic element 430 can make the elastic element 430 easier to install, thereby further simplifying the structure of the detection device 400.

[0088] According to some embodiments of the present application, the base 410 includes a snap-fit ​​structure, and the base 410 is connected to a side wall of the installation environment of the detection device 400 via the snap-fit ​​structure 413 .

[0089] 10 is a left view of FIG. 4 . As shown in FIG. 10 , the base 410 includes a snap-fit ​​structure. The base 410 can be connected to the side wall of the installation environment of the detection device 400 through the snap-fit ​​structure 413 . The inner upper portion of the battery housing includes a waist-shaped hole.

[0090] In an embodiment of the present application, the base 410 is connected to the side wall of the installation environment of the detection device 400 through a snap-on structure 413, that is, the base 410 is detachable. The installation of the base 410 is more convenient, and the number of bases 410 can be increased or decreased as needed, thereby improving the installation flexibility of the detection device 400 and increasing the scope of use of the detection device 400.

[0091] According to some embodiments of the present application, the buckle structure 413 is an asymmetric structure with respect to any plane perpendicular to the first direction Z.

[0092] In an embodiment of the present application, the snap-fit ​​structure 413 is set to be an asymmetric structure with respect to any plane perpendicular to the first direction Z. When the base 410 is installed on the side wall of the installation environment of the detection device 400, the installation is convenient and the correctness of the installation direction can be ensured.

[0093] According to some embodiments of the present application, as shown in Figure 4, the sensor 420 includes a detection probe 423 and a wire 424, the detection probe 423 is configured to detect whether the liquid level relative to the detection environment reaches a target height, and the wire 424 is configured to transmit the detection signal to the control system.

[0094] In the embodiment of the present application, there can be two detection probes 423. Normally, the detection probes 423 are open circuits. When exposed to coolant, the equivalent resistance or capacitance between the detection probes 423 changes. This change in resistance or capacitance signal is transmitted to the control system via wire 424, thereby transmitting the liquid detection result. For example, if sensor 420 is a resistive detection sensor 420, the insulation resistance between the detection probes 423 may vary depending on the liquid level. In the absence of liquid, the resistance between the detection probes 423 may be infinite.

[0095] In the embodiment of the present application, the detection signal may include whether the liquid level in the installation environment of the detection device 400 reaches the target height.

[0096] In an embodiment of the present application, the detection probe 423 is used to detect whether the liquid level of the detection liquid relative to the installation environment of the detection device 400 reaches the target height, and the detection signal is transmitted to the control system through the wire 424, so that the user can monitor the liquid situation of the installation environment of the detection device 400 in a timely manner.

[0097] An embodiment of the present application provides a battery, including a battery housing and the detection device 400 of any of the above embodiments, wherein the base 410 of the detection device 400 is installed on the inner surface of the side wall of the battery housing, and the first direction intersects with the bottom surface of the battery housing.

[0098] In the embodiments of the present application, the battery can be applied to, but not limited to, mobile phones, tablets, laptop computers, electric toys, electric tools, battery-powered vehicles, electric cars, ships, spacecraft, etc. Among them, electric toys can include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc., and spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0099] In this embodiment of the present application, the base 410 can be connected to the inner wall near the bottom surface of the battery casing. The base 410 can be fixedly connected to the inner wall of the battery casing; the base 410 can also be detachably connected to the inner wall of the battery casing using a snap connection or other similar method. There can be multiple bases 410, which are spaced apart on the inner wall of the battery casing.

[0100] In the embodiment of the present application, the sensor 420 and the base 410 are movably connected to ensure that the sensor 420 can move relative to the base 410 along a first direction Z intersecting with the bottom surface of the battery housing.

[0101] In an embodiment of the present application, by connecting the base 410 to the inner wall of the battery shell, the sensor 420 is connected to the base 410 and can move relative to the base 410 along a first direction intersecting with the bottom surface of the battery shell. Therefore, when the bottom surface of the battery shell is hit, etc., the sensor 420 can move in the first direction relative to the base 410, thereby reducing the probability of the sensor 420 being damaged when the battery shell is deformed.

[0102] According to some embodiments of the present application, the sensor 420 of the detection device 400 includes a liquid leakage detection sensor, which is configured to detect whether the leaked liquid in the battery housing reaches a target height relative to the bottom surface of the battery housing.

[0103] In the embodiment of the present application, the leakage detection sensor 420 can detect electrolyte leakage in the battery and promptly issue an alarm signal, thereby ensuring the safety and stability of the battery during use. Depending on the detection principle, the leakage detection sensor 420 can be divided into a capacitive leakage detection sensor and a resistive leakage detection sensor.

[0104] In the embodiment of the present application, the leakage detection sensor detects whether the leakage in the battery housing reaches the target height relative to the bottom surface of the battery housing, so that the leakage status in the battery can be detected in time and reported in time when the leakage reaches the predetermined height.

[0105] An embodiment of the present application provides an electrical device, including the battery in the above embodiment, and the battery is used to provide electrical energy.

[0106] In the embodiments of the present application, the electric device may be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery-powered vehicle, an electric car, a ship, a spacecraft, etc. Among them, the electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, etc. The spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, etc.

[0107] By adopting the electrical device in the embodiment of the present application, the probability of the leakage detection sensor 420 being damaged when the battery shell is deformed can be reduced, so that the leakage detection sensor 420 can still be used for leakage detection when the battery shell is deformed by impact, thereby improving the safety of the electrical device.

[0108] The technical solution of the present application will be further described below by using a specific embodiment. As shown in Figures 4 to 10, the detection device 400 includes a base 410 and a sensor 420. The sensor 420 is connected to the base 410 and can move relative to the base 410 along the first direction Z.

[0109] The sensor 420 includes a sensor housing, which includes one of a guide and a slider. The base 410 includes the other of the guide and the slider. The guide is used to guide the sliding direction of the slider so that the sensor 420 can move along the first direction Z. The guide includes a slide rail 411 and a groove 412, and the slider includes a slider 421 and a protrusion 422.

[0110] Detection device 400 also includes an elastic element 430, which is used to apply an elastic force to sensor 420 along a first direction Z to define the position of sensor 420 relative to base 410. Elastic element 430 includes a spring, and base 410 includes a guide structure for guiding the deformation of the spring. The guide structure includes a cylindrical structure 414. Elastic element 430 includes a leaf spring.

[0111] The base 410 includes a snap-fit ​​structure, and the base 410 is connected to the side wall of the installation environment of the detection device 400 via the snap-fit ​​structure 413. The snap-fit ​​structure 413 is an asymmetric structure with respect to any plane perpendicular to the first direction Z.

[0112] The sensor 420 includes a detection probe 423 and a wire 424 . The detection probe 423 is configured to detect whether the liquid level relative to the detection environment reaches a target height. The wire 424 is configured to transmit a detection signal to a control system.

[0113] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A detection device, comprising: a base, the base comprising one of the guide member and the slide member; A sensor, used to be connected to the base, the sensor comprising a sensor housing, the sensor housing comprising the other of a guide member and a sliding member, the guide member being used to guide a sliding direction of the sliding member so that the sensor can move along a first direction relative to the base; Wherein, the guide member includes a slide rail and a groove, the sliding member includes a slider and a protrusion, the slide rail is used to guide the sliding direction of the slider, and the groove is used to guide the sliding direction of the protrusion.

2. The detection device according to claim 1, wherein: The detection device further comprises an elastic element, and the elastic element is used to apply an elastic force to the sensor along the first direction to limit the position of the sensor relative to the base.

3. The detection device according to claim 2, wherein: The elastic element includes a spring.

4. The detection device according to claim 3, wherein: The base includes a guiding structure for guiding the deformation of the spring.

5. The detection device according to claim 4, wherein: The guide structure includes a cylindrical structure.

6. The detection device according to claim 2, wherein: The elastic element includes a leaf spring.

7. The detection device according to any one of claims 1 to 6, wherein: The base comprises a snap-fit ​​structure, and the base can be connected to a side wall of an installation environment of the detection device through the snap-fit ​​structure.

8. The detection device according to claim 7, wherein: The buckle structure is an asymmetric structure with respect to any plane perpendicular to the first direction.

9. The detection device according to any one of claims 1 to 8, wherein: The sensor comprises a detection probe and a wire, wherein the detection probe is configured to detect whether the liquid level relative to the installation environment of the detection device reaches a target height, and the wire is configured to transmit a detection signal to a control system.

10. A battery comprising: Battery housing; The detection device according to any one of claims 1 to 9, wherein the base of the detection device is mounted on the inner surface of the side wall of the battery housing, and the first direction intersects with the bottom surface of the battery housing.

11. The battery according to claim 10, wherein The sensor of the detection device includes a liquid leakage detection sensor, and the liquid leakage detection sensor is configured to detect whether the leaked liquid in the battery casing reaches a target height relative to the bottom surface of the battery casing.

12. An electrical device, comprising the battery according to claim 10 or 11, wherein the battery is used to provide electrical energy.

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