Shell of temperature sensor, temperature sensor, battery and electric device

Abstract

The utility model discloses a shell of a temperature sensor, the temperature sensor, a battery and an electric device. The shell of the temperature sensor comprises a body part, an accommodating space is formed in the body part, an opening is formed in one end of the body part, and the opening is communicated with the accommodating space; the connecting part is located outside the body part and connected with the body part, a slot structure is defined by the connecting part and the body part jointly, a connecting structure is formed on the inner surface of the slot wall of the slot, and the connecting structure is used for limiting movement of the body part in the inserting direction of the slot structure. The slot structure of the shell is connected with the chip in an inserted mode, so that one part of the chip is located in the slot, and compared with the structure that the shell is installed on one side of the chip, installation spaces on the two sides of the chip can be fully used for installing the shell so as to save the installation space.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a housing of a temperature sensor, a temperature sensor, a battery and an electrical device. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] When the battery is working, the temperature of the battery needs to be monitored. When the temperature sensor is arranged on the bar (the electrical connection component between two battery cells) inside the battery, since there are battery cells below the bar and an insulating cover above the bar, the distance between the insulating cover and the end cover of the battery cell and the bar is small. Due to the limitation of the space above and below the bar, it is inconvenient to install the temperature sensor. Utility Model Content

[0004] In view of the above problems, the present application provides a housing of a temperature sensor, a temperature sensor, a battery and an electrical device.

[0005] The first aspect of the present application provides a housing of a temperature sensor, comprising:

[0006] A main body, wherein a receiving space is formed inside the main body, and an opening is formed at one end of the main body, the opening being communicated with the receiving space;

[0007] The connecting part is located outside the main body and connected to the main body. The connecting part and the main body jointly enclose a slot structure. The inner surface of the slot wall of the slot structure is formed with a connecting structure. The connecting structure is used to connect to the target connector to limit the movement of the main body relative to the target connector along the plug-in direction of the slot structure.

[0008] During the installation of the shell, the target connector can be the battery tab. The slot structure of the shell is plugged into the tab so that a part of the tab is located in the slot. Compared with the structure in which the shell is installed on one side of the tab, the installation space on both sides of the tab can be fully utilized to install the shell, thereby saving installation space.

[0009] In some embodiments, the connecting part includes a first connecting part and a second connecting part, the first connecting part is connected to the main body part, and one end of the first connecting part facing away from the main body part is connected to the second connecting part. The first connecting part, the second connecting part and the main body part together form a slot structure, and along the plugging direction of the slot structure, the connecting structure and the first connecting part are spaced apart.

[0010] When the slot structure of the shell is plugged into the bar, the second connecting part and the main body are located on both sides of the bar. The second connecting part can be set between the bar and the insulating cover, and the main body is set between the bar and the battery cell, or the second connecting part is set between the bar and the battery cell, and the main body is set between the bar and the insulating cover, so that the shell can make full use of the space on both sides of the bar to improve space utilization; at the same time, the first connecting part can limit the insertion depth of the slot structure, that is, when the slot structure is inserted to the maximum depth, the first connecting part abuts against one edge of the bar, so that the shell can be installed at a predetermined position of the bar, thereby facilitating the connection between the shell and the bar.

[0011] In some embodiments, a connection structure is formed on the surface of the second connection portion facing the main body, or a connection structure is formed on the surface of the main body facing the second connection portion. Compared with a structure in which the connection structure is formed on the first connection portion, it is more convenient to connect the connection structure to the battery tab when applied to the battery.

[0012] In some embodiments, the connecting part includes two first connecting parts and two second connecting parts, the two first connecting parts are respectively located on opposite sides of the main body, the two second connecting parts are respectively located on opposite sides of the main body, the two first connecting parts are respectively connected to the main body, each first connecting part is connected to the second connecting part, and on the same side of the main body, the first connecting part, the second connecting part and the main body together form a slot structure, and along the plugging direction of the slot structure, the connecting structure and the first connecting part are spaced apart.

[0013] When the shell and the bar are installed, a notch can be set on one side of the bar, and the shell can be inserted into the notch through the slot structure. When the first connecting part abuts against the side of the bar, it is connected to the bar through the connecting structure, and the shell is plugged into the bar through the slot structure on both sides of the shell. Compared with the structure in which the shell is installed on one side of the bar, the space on both sides of the bar can be fully utilized, and the shell can be installed on the bar to improve space utilization.

[0014] In some embodiments, the main body includes a first part and a second part, an accommodating space is formed inside the first part, and the first part is connected to the second part on both sides along the first direction, and the first direction is the same as the spacing direction of the two first connecting parts. On the same side of the main body, the first part, the second part, the first connecting part and the second connecting part are together formed into a slot structure, and along the plug-in direction of the slot structure, the connecting structure is spaced apart from the first connecting part.

[0015] Therefore, the slot structure formed on both sides of the main body can be plugged into the bar with a notch. Along the thickness direction of the bar, the two ends of the main body can be located on both sides of the bar respectively, and the shell can be installed by utilizing the space above and below the bar. Compared with the structure in which the main body is installed on one side of the bar, the shell can be installed by fully utilizing the limited space on both sides of the bar, thereby improving space utilization.

[0016] In some embodiments, a connection structure is formed on a surface of the second connection portion facing the second part, or a connection structure is formed on a surface of the second part facing the second connection portion. The connection structure is arranged on the second connection portion to facilitate fixing of the housing.

[0017] In some embodiments, the connection structure includes a snap-fit ​​protrusion.

[0018] During use, a slot can be provided on the surface of the tab, and the snap-in protrusion can be snapped into the slot of the tab by utilizing the elastic deformation of the second connecting portion. Therefore, by providing the snap-in protrusion, the temperature sensor can be quickly disassembled and assembled, which is convenient for installation and maintenance.

[0019] In some embodiments, the material of the connecting portion includes an elastic material, so that the elastic deformation of the connecting portion can be utilized to realize the connection and disassembly of the connecting protrusion and the tab.

[0020] In some embodiments, the connection structure includes a connection hole, the connection hole passes through the slot wall where the connection hole is located, and the axis of the connection hole is set at an angle to the slot wall where the connection hole is located. Therefore, the housing can be clamped on the battery tab by the clamping protrusion, or the housing can be fixed on the tab by the connection hole through screws, so as to facilitate the installation and removal of the housing.

[0021] In some embodiments, the connection structure includes a connection hole, the connection hole passes through the slot wall where the connection hole is located, and the axis of the connection hole is set at an angle to the slot wall where the connection hole is located. Therefore, the housing can be clamped on the battery tab by the clamping protrusion, or the housing can be fixed on the tab by the connection hole through screws, so as to facilitate the installation and removal of the housing.

[0022] A second aspect of the present application provides a temperature sensor, comprising:

[0023] Temperature measuring components;

[0024] In the housing of the temperature sensor of the first aspect, the temperature measuring component is arranged in the accommodating space.

[0025] Since the temperature sensor includes the housing of the first aspect, the effects are the same as those described above and will not be described in detail herein.

[0026] In some embodiments, the temperature sensor further includes a glue layer, the temperature measuring component is spaced apart from the inner wall of the main body, and the glue layer is filled between the temperature measuring component and the inner wall of the main body.

[0027] Thus, the temperature measuring component can be separated from the main body by the glue layer, so that the temperature measuring component can be protected, so that the temperature sensor can work more reliably.

[0028] The third aspect of the present application provides a battery, comprising:

[0029] Battery cells;

[0030] The bar piece is a target connection member and is electrically connected to the electrode terminal of the battery cell;

[0031] In the temperature sensor of the second aspect, part of the bar is inserted into the slot structure and connected to the connecting structure, and the insertion direction of the slot structure is perpendicular to the thickness direction of the bar.

[0032] The connection structure includes a clamping protrusion. An embedded structure is formed on the surface of the bar piece along the thickness direction of the bar piece, and the clamping protrusion is located in the embedded structure.

[0033] Since the battery includes all the technical features of the above-mentioned temperature sensor, the effects are the same as above and will not be repeated here.

[0034] In some embodiments, the connection structure includes a snap-fit ​​protrusion, and an embedded structure is formed on the surface of the tab along the thickness direction of the tab, and the snap-fit ​​protrusion is located in the embedded structure. Compared with the method of installing the housing by screws or bonding, the snap-fit ​​protrusion is snap-fitted with the tab, which is more convenient for assembly and disassembly.

[0035] In some embodiments, the connecting part includes a first connecting part and a second connecting part, the first connecting part is connected to the main body part, and one end of the first connecting part facing away from the main body part is connected to the second connecting part. The first connecting part, the second connecting part and the main body part together form a slot structure. Along the thickness direction of the bar piece, the second connecting part and the main body part are located on both sides of the bar piece.

[0036] When the slot structure of the shell is plugged into the bar, the second connecting part and the main body are located on both sides of the bar. The second connecting part can be set between the bar and the insulating cover, and the main body is set between the bar and the battery cell, or the second connecting part is set between the bar and the battery cell, and the main body is set between the bar and the insulating cover, so that the shell can make full use of the space on both sides of the bar to improve space utilization; at the same time, the first connecting part can limit the insertion depth of the slot structure, that is, when the slot structure is inserted to the maximum depth, the first connecting part abuts against one edge of the bar, so that the shell can be installed at a predetermined position of the bar, thereby facilitating the connection between the shell and the bar.

[0037] In some embodiments, a notch is formed at one end of the tab, and the side edges of the notch include two oppositely arranged first side edges, each first side edge is formed with an embedded structure, the embedded structure includes a card slot, the connecting portion includes two first connecting portions and two second connecting portions, the two first connecting portions are respectively located on opposite sides of the main body portion, the two second connecting portions are respectively located on opposite sides of the main body portion, the two first connecting portions are respectively connected to the main body portion, each first connecting portion is connected to the second connecting portion, and on the same side of the main body portion, the first connecting portion, the second connecting portion and the main body portion are jointly enclosed into a slot structure, each first side edge is located in the slot structure, and the snap-on protrusion is located in the card slot.

[0038] When the shell and the bar are installed, a notch can be set on one side of the bar, and the shell can be inserted into the notch through the slot structure. When the first connecting part abuts against the side of the bar, it is connected to the bar through the connecting structure, and the shell is plugged into the bar through the slot structure on both sides of the shell. Compared with the structure in which the shell is installed on one side of the bar, the space on both sides of the bar can be fully utilized, and the shell can be installed on the bar to improve space utilization.

[0039] The fourth aspect of the present application provides an electrical device, comprising the battery of the third aspect, wherein the battery is used to provide electrical energy to the electrical device.

[0040] Since the electrical device includes all the technical features of the above-mentioned battery, the effects are the same as those described above and will not be repeated here.

[0041] 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

[0042] Figure 1 A schematic diagram of an electric device in some embodiments of the present application is a vehicle;

[0043] Figure 2 A schematic diagram of the exploded structure of a battery according to some embodiments of the present application;

[0044] Figure 3 A schematic diagram of the exploded structure of a battery cell according to some embodiments of the present application;

[0045] Figure 4 An axonometric diagram of a temperature sensor according to some embodiments of the present application;

[0046] Figure 5 for Figure 4 AA section view;

[0047] Figure 6An axonometric diagram of a temperature sensor according to some embodiments of the present application;

[0048] Figure 7 for Figure 4 BB cross-sectional view;

[0049] Figure 8 An axonometric diagram of a temperature sensor according to some embodiments of the present application;

[0050] Fig. 9 An axonometric diagram of a temperature sensor according to some embodiments of the present application;

[0051] Fig.10 An axonometric diagram of a temperature sensor according to some embodiments of the present application;

[0052] Fig.11 An exploded view of the connection between a temperature sensor and a tab in a battery according to some embodiments of the present application;

[0053] Fig.12 An axonometric diagram of a battery center busbar according to some embodiments of the present application;

[0054] Fig.13 An isometric diagram of a battery center busbar connected to a temperature sensor in some embodiments of the present application;

[0055] Fig.14 A partial cross-sectional view of a longitudinal section of a battery according to some embodiments of the present application, wherein the longitudinal section is parallel to the thickness direction of the tab and the spacing direction of two electrode terminals of the battery cell;

[0056] Fig.15 for Fig.14 A local enlarged view at location I;

[0057] Fig.16 A partial cross-sectional view of a longitudinal section of a battery according to some embodiments of the present application, wherein the longitudinal section is parallel to the thickness direction of the tab and the spacing direction of two electrode terminals of the battery cell;

[0058] Fig.17 for Fig.16 A partial enlarged view of location II.

[0059] The reference numerals are as follows:

[0060] 1000. Vehicles;

[0061] 100. Battery;

[0062] 200, controller;

[0063] 300, motor;

[0064] 10. Box body; 11. Lower box body; 12. Upper cover;

[0065] 20. Battery cell; 21. End cap; 211. Electrode terminal; 22. Housing; 23. Electrode assembly; 231. Positive electrode ear; 232. Negative electrode ear;

[0066] 30. Temperature sensor; 31. Shell; 311. Main body; 3111. First part; 3112. Second part; 312. Connecting part; 3121. First connecting part; 3122. Second connecting part; 313. Slot structure; 314. Connecting structure; 3141. Snap-fitting protrusion; 3142. Connecting hole; 32. Adhesive layer; 33. Temperature measuring component; 34. Wiring harness;

[0067] 40. tab; 41. embedded structure; 42. notch; 421. first side edge;

[0068] 50. Insulation cover;

[0069] 60. Connecting screws;

[0070] X, plugging direction; Y, thickness direction; Z, first direction. DETAILED DESCRIPTION

[0071] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0072] 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.

[0073] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0074] 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.

[0075] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0076] 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).

[0077] 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.

[0078] When the battery is working, it is necessary to monitor the temperature of the battery, and the temperature sensor is arranged on the bar inside the battery. The battery box is equipped with multiple battery cells. The bar is a component connected in series or in parallel between two battery cells. A temperature sensor can be installed on the bar to monitor the working temperature of the battery. Since an insulating cover is installed above the bar, the insulating cover is located in the box, and the insulating cover is set on multiple battery cells and is spaced from the bar. The distance between the bar and the end cover of the battery cell is small. If the temperature sensor is installed between the bar and the end cover, the distance is too small to be convenient for installation. If the temperature sensor is installed between the insulating cover and the bar, the height of the insulating cover will increase, thereby increasing the occupied space of the box. Therefore, in a limited space, it is not convenient to install the temperature sensor due to the limitation of the space on the upper and lower sides of the bar.

[0079] In view of this, the present application provides a shell of a temperature sensor, in which a slot structure is arranged between the main body and the connecting part, and the slot structure is plugged into the bar along a thickness direction parallel to the bar, so that a part of the bar is located in the slot structure. The shell can be installed by utilizing the limited space on both sides of the bar to improve space utilization.

[0080] In addition to being used for measuring the temperature of batteries, the temperature sensor provided in the present application can also be used for measuring the temperature of other devices or electrical appliances. For example, the temperature sensor can be used on, but not limited to, devices such as air conditioners or heaters.

[0081] An embodiment of the present application provides an electrical device, including a battery, and the battery is used to provide electrical energy to the electrical device.

[0082] Electrical devices may include, but are not limited to, electric toys, electric tools, battery vehicles, electric cars, ships, spacecraft, etc. Electric toys may include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Spacecraft may include airplanes, rockets, space shuttles, and spacecraft, etc.

[0083] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device in some embodiments of the present application.

[0084] Please refer to Figure 1 , Figure 1 A schematic diagram of the structure of a vehicle 1000 provided for some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may 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 may be provided at the bottom, head or tail of the vehicle 1000. The battery 100 may be used to power the vehicle 1000, for example, the battery 100 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, and the controller 200 is used to control the battery 100 to power the motor 300, for example, for the starting, navigation and working power requirements of the vehicle 1000 during driving. In some embodiments of the present application, the battery 100 may not only be used 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.

[0085] Please refer to Figure 2 , Figure 2The exploded diagram of the battery 100 provided in some embodiments of the present application. The battery 100 includes a box body 10 and at least one battery cell 20, and the battery cell 20 is contained in the box body 10. Among them, the box body 10 is used to provide a storage space for the battery cell 20, and the box body 10 can adopt a variety of structures. In some embodiments, the box body 10 may include a lower box body 11 and an upper cover 12, and the lower box body 11 and the upper cover 12 cover each other, and the lower box body 11 and the upper cover 12 jointly define a storage space for accommodating the battery cell 20. The upper cover 12 can be a hollow structure with an inlet at one end, and the lower box body 11 can be a plate-like structure. The lower box body 11 covers the inlet side of the upper cover 12, so that the lower box body 11 and the upper cover 12 jointly define a storage space; the lower box body 11 and the upper cover 12 can also be hollow structures with an inlet on one side, and the inlet side of the lower box body 11 covers the inlet side of the upper cover 12. Of course, the lower box body 11 formed by the lower box body 11 and the upper cover 12 can be in various shapes, such as T-shape, rectangular parallelepiped, etc.

[0086] 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 mixed connection through a bar. Mixed connection means that the multiple battery cells 20 are both connected in series and in parallel. The multiple battery cells 20 may be directly connected in series, in parallel, or in mixed connection, and then the whole formed by the multiple battery cells 20 is accommodated in the lower box 11; of course, the battery 100 may also be a battery module formed by connecting multiple battery cells 20 in series, in parallel, or in mixed connection, and then the multiple battery modules are connected in series, in parallel, or in mixed connection to form a whole, and accommodated in the lower box 11. The battery 100 may also include other structures, for example, the battery 100 may also include a converging component for realizing electrical connection between the multiple battery cells 20.

[0087] Each battery cell 20 may be a secondary battery or a primary battery, or 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.

[0088] Please refer to Figure 3 , Figure 3 The schematic diagram of the exploded structure of the battery cell 20 provided in some embodiments of the present application. The battery cell 20 refers to the smallest unit constituting the battery. The battery cell 20 includes an end cap 21, a housing 22, an electrode assembly 23 and other functional components.

[0089] The end cap 21 refers to a component that covers the inlet of the outer 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 outer shell 22 to match the outer shell 22. Optionally, the end cap 21 can be made of a material with a certain hardness and strength (such as aluminum alloy), so that the end cap 21 is not easily deformed when squeezed and collided, so that the battery cell 20 can have a higher structural strength and the safety performance can also be improved. Functional components such as electrode terminals 211 can be provided on the end cap 21. The electrode terminal 211 can be used to electrically connect with the electrode 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 the 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 a variety of materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiments of the present application do not impose special restrictions on this. In some embodiments, an insulating member may be provided inside the end cap 21, and the insulating member may be used 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 plastic, rubber, or the like.

[0090] The shell 22 is a component used to cooperate with the end cap 21 to form the internal environment of the battery cell 20, wherein the formed internal environment can be used to accommodate the electrode assembly 23, the electrolyte and other components. The shell 22 and the end cap 21 can be independent components, and an inlet port can be set on the shell 22, and the end cap 21 covers the inlet port to form the internal environment of the battery cell 20. Without limitation, the end cap 21 and the shell 22 can also be integrated. Specifically, the end cap 21 and the shell 22 can form a common connection surface before other components enter the shell, and when the interior of the shell 22 needs to be encapsulated, the end cap 21 covers the shell 22. The shell 22 can be of various shapes and sizes, such as a rectangular parallelepiped, a cylindrical shape, a hexagonal prism, etc. Specifically, the shape of the shell 22 can be determined according to the specific shape and size of the electrode assembly 23. The material of the shell 22 can be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiment of the present application does not impose any special restrictions on this.

[0091] The electrode assembly 23 is a component in the battery cell 20 where electrochemical reactions occur. One or more electrode assemblies 23 may be included in the housing 22. The electrode 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 materials constitute the main body of the electrode assembly, and the parts of the positive and negative electrode sheets without active materials each constitute a pole ear. The positive pole ear 231 and the negative pole ear 232 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 material and the negative electrode active material react with the electrolyte, and the pole ears connect the electrode terminals to form a current loop.

[0092] The following examples are for convenience of description. Figure 4-Figure 10 , the shell 31 of a temperature sensor 30 of the present application is taken as an example for description.

[0093] The housing 31 of the temperature sensor 30 includes a main body 311 and a connecting portion 312. A receiving space is formed inside the main body 311, and an opening is formed at one end of the main body 311, and the opening is connected to the receiving space. The connecting portion 312 is located outside the main body 311 and connected to the main body 311. The connecting portion 312 and the main body 311 jointly enclose a slot structure 313, and a connecting structure 314 is formed on the inner surface of the slot wall of the slot structure 313. The connecting structure 314 is used to connect to the target connector to limit the movement of the main body 311 relative to the target connector along the plugging direction X of the slot structure 313.

[0094] Optionally, the main body 311 and the connecting portion 312 can be integrally formed. Specifically, the main body 311 and the connecting portion 312 can be integrally formed by injection molding or welding. The main body 311 and the connecting portion 312 can also be connected by, but not limited to, bonding or riveting.

[0095] Optionally, the main body 311 may be, but is not limited to, a square box, a circular box, a polygonal box or other structures.

[0096] The connection structure 314 is used to limit the movement of the main body 311 along the plugging direction X of the slot structure 313, which means that the connection structure 314 can fix the main body 311 or the connection part 312 on the installed component to limit the movement of the shell 31 along the plugging direction X of the slot structure 313. The installed component can be but is not limited to a battery tab 40 or other component connected to the shell 31.

[0097] When the shell 31 of the temperature sensor 30 is applied to the tab 40 of the battery, the slot structure 313 of the shell 31 is plugged into the tab 40 so that a portion of the tab 40 is located in the slot. Compared with the structure in which the shell 31 is installed on one side of the tab 40, the installation space on both sides of the tab 40 can be fully utilized to install the shell 31, thereby saving installation space.

[0098] In some embodiments, please refer to Figure 4 and Figure 5 The connecting part 312 includes a first connecting part 3121 and a second connecting part 3122. The first connecting part 3121 is connected to the main body part 311. The end of the first connecting part 3121 away from the main body part 311 is connected to the second connecting part 3122. The first connecting part 3121, the second connecting part 3122 and the main body part 311 together form a slot structure 313. Along the plug-in direction X of the slot structure 313, the connecting structure 314 is spaced apart from the first connecting part 3121.

[0099] The connection method between the first connection part 3121 and the main body part 311 and the connection method between the second connection part 3122 and the second connection part 3122 include but are not limited to welding, bonding or integral molding by injection molding.

[0100] Optionally, the structure formed by the first connection portion 3121 and the second connection portion 3122 may be an L-shaped bent plate.

[0101] When the slot structure 313 of the shell 31 is plugged into the tab 40, the second connection portion 3122 and the main body portion 311 are located on both sides of the tab 40. The second connection portion 3122 can be set between the tab 40 and the insulating cover 50, and the main body portion 311 can be set between the tab 40 and the battery cell 20. Alternatively, the second connection portion 3122 is set between the tab 40 and the battery cell 20, and the main body portion 311 is set between the tab 40 and the insulating cover 50, so that the shell 31 can make full use of the space on both sides of the tab 40 to improve space utilization; at the same time, the first connection portion 3121 can limit the insertion depth of the slot structure 313, that is, when the slot structure 313 is inserted to the maximum depth, the first connection portion 3121 abuts against an edge of the tab 40, so that the shell 31 can be installed at a predetermined position of the tab 40, thereby facilitating the connection between the shell 31 and the tab 40.

[0102] In some embodiments, please refer to Figure 4 and Figure 6 A connection structure 314 is formed on a surface of the second connection portion 3122 facing the main body portion 311 , or a connection structure 314 is formed on a surface of the main body portion 311 facing the second connection portion 3122 .

[0103] The connection structure 314 may be a connection hole 3142 or a snap-on protrusion 3141 .

[0104] Compared with the structure in which the connection structure 314 is formed on the first connection portion 3121 , it is more convenient to connect the connection structure 314 with the tab 40 of the battery when applied to the battery.

[0105] In some embodiments, please refer to Fig. 9 The connecting portion 312 includes two first connecting portions 3121 and two second connecting portions 3122. The two first connecting portions 3121 are respectively located on opposite sides of the main body portion 311, and the two second connecting portions 3122 are respectively located on opposite sides of the main body portion 311. The two first connecting portions 3121 are respectively connected to the main body portion 311, and each first connecting portion 3121 is connected to the second connecting portion 3122. On the same side of the main body portion 311, the first connecting portions 3121, the second connecting portions 3122 and the main body portion 311 are jointly enclosed to form a slot structure 313. Along the plug-in direction X of the slot structure 313, the connecting structure 314 is spaced apart from the first connecting portion 3121.

[0106] The two first connection parts 3121 are respectively connected to the main body part 311 by, but not limited to, welding, screw connection, bonding, or integrally formed by injection molding.

[0107] When the shell 31 and the bar 40 are installed, a notch 42 can be set on one side of the bar 40, and the shell 31 is inserted into the notch 42 through the slot structure 313. When the first connecting portion 3121 abuts against the side of the bar 40, it is connected to the bar 40 through the connecting structure 314, and is plugged into the bar 40 through the slot structures 313 on both sides of the shell 31. Compared with the structure in which the shell 31 is installed on one side of the bar 40, the space on both sides of the bar 40 can be fully utilized, and the shell 31 can be installed on the bar 40 to improve space utilization.

[0108] In some embodiments, please refer to Fig. 9 The main body 311 includes a first part 3111 and a second part 3112. An accommodating space is formed inside the first part 3111. The first part 3111 is connected to the second part 3112 on both sides along the first direction Z. The first direction Z is the same as the spacing direction of the two first connecting parts 3121. On the same side of the main body 311, the first part 3111, the second part 3112, the first connecting part 3121 and the second connecting part 3122 are jointly enclosed to form a slot structure 313. Along the plug-in direction X of the slot structure 313, the connecting structure 314 is spaced apart from the first connecting part 3121.

[0109] The connection between the first part 3111 and the second part 3112 includes, but is not limited to, welding, bonding, screw connection, or integral molding by injection molding.

[0110] Therefore, the slot structure 313 formed on both sides of the main body 311 can be plugged into the bar piece 40 with the notch 42. Along the thickness direction Y of the bar piece 40, the two ends of the main body 311 can be respectively located on both sides of the bar piece 40, and the shell 31 can be installed by utilizing the space above and below the bar piece 40. Compared with the structure in which the main body 311 is installed on one side of the bar piece 40, the shell 31 can be installed by fully utilizing the limited space on both sides of the bar piece 40, thereby improving space utilization.

[0111] In some embodiments, a connection structure 314 is formed on the surface of the second connection portion 3122 facing the second part 3112, or a connection structure 314 is formed on the surface of the second part 3112 facing the second connection portion 3122. Compared with the structure in which the housing 31 is installed on one side of the bar 40, the space on both sides of the bar 40 can be fully utilized, and the housing 31 is installed on the bar 40 to improve space utilization.

[0112] In some embodiments, please refer to Figure 8 and Fig. 9 , the connection structure 314 includes a snap-fit ​​protrusion 3141 .

[0113] Exemplarily, the snap-fit ​​protrusion 3141 is formed at the end of the second connection part 3122 away from the first connection part 3121, and the snap-fit ​​protrusion 3141 and the second connection part 3122 form a snap-fit ​​structure. In other exemplary embodiments, the snap-fit ​​protrusion 3141 is formed between the end of the second connection part 3122 away from the first connection part 3121 and the first connection part 3121. During use, a slot can be provided on the surface of the tab 40, and the snap-fit ​​protrusion 3141 can be inserted into the slot of the tab 40 by utilizing the elastic deformation of the second connection part 3122.

[0114] By providing the snap-fit ​​protrusion 3141 , the temperature sensor 30 can be quickly disassembled and assembled, making maintenance and installation convenient.

[0115] In some embodiments, the material of the connection part 312 includes an elastic material. Optionally, the material of the connection part 312 can be stainless steel, copper, plastic, etc. The second connection part 3122, the first connection part 3121 and the main body 311 can be made of the same material or different materials.

[0116] In some embodiments, please refer to Figure 6 The connection structure 314 includes a connection hole 3142, which passes through the groove wall where the connection hole 3142 is located, and the axis of the connection hole 3142 is set at an angle to the groove wall where the connection hole 3142 is located.

[0117] Exemplarily, the tab 40 is provided with a threaded hole, the axis of the threaded hole is the same as the thickness direction Y of the tab 40, when the slot structure 313 is plugged into the tab 40, the threaded hole and the connecting hole 3142 are arranged opposite to each other, and a connecting screw 60 is arranged in the connecting hole 3142, which is threadedly connected to the threaded hole through the connecting screw 60, and the connecting screw 60 can be but not limited to a countersunk screw.

[0118] The angle between the axis of the connection hole and the groove wall where the connection hole 3142 is located is greater than 0° and less than or equal to 90°.

[0119] Exemplarily, the axis of the connecting hole 3142 is substantially perpendicular to the groove wall where the connecting hole 3142 is located, which facilitates the manufacture of the connecting hole 3142 and the installation of the housing 31 , and the specific length can be determined according to the actual application scenario.

[0120] Thus, the connecting hole 3142 fixes the housing 31 on the bar 40 by means of screws, so as to facilitate the installation and removal of the housing 31 .

[0121] The following examples are for convenience of description. Figure 4-Figure 10 , a temperature sensor 30 of the present application is taken as an example for explanation.

[0122] The temperature sensor 30 includes a temperature measuring component 33 and a housing 31 . The temperature measuring component 33 is disposed in the accommodation space of the housing 31 .

[0123] The temperature measuring component 33 refers to a component that can convert temperature into an electrical signal. For example, the temperature measuring component 33 includes a thermistor. Since the resistance of the thermistor changes with temperature, the temperature can be measured by using the corresponding relationship between temperature and resistance.

[0124] Optionally, the shell 31 may be made of metal or plastic.

[0125] Optionally, the temperature sensor 30 further includes a wiring harness 34 , which is electrically connected to the temperature measuring component 33 , and is used to transmit signals of the temperature measuring component 33 .

[0126] Figure 4 , Figure 6 and Fig. 9 The temperature sensor 30 is shown as a single-ended lead sensor (the sensor connection line is led out from one end). Figure 8 and Fig.10 The temperature sensor 30 is shown as a patch type sensor.

[0127] Since the temperature sensor 30 includes all the technical features of the housing 31 of the temperature sensor 30 in the above embodiment, the functions performed are the same as those described above and will not be described in detail herein.

[0128] In some embodiments, please refer to Figure 5The temperature sensor 30 further includes a glue layer 32 , the temperature measuring component 33 is spaced apart from the inner wall of the main body 311 , and the glue layer 32 is filled between the temperature measuring component 33 and the inner wall of the main body 311 .

[0129] Exemplarily, the temperature measuring component 33 further includes a circuit board, which is located in the housing 31 , and a glue layer 32 is filled between the circuit board and the housing 31 to encapsulate the temperature measuring component 33 .

[0130] Thus, the temperature measuring component 33 can be separated from the main body 311 by the adhesive layer 32 , so that the temperature measuring component 33 can be protected, so that the temperature sensor 30 can work more reliably.

[0131] The following examples are for convenience of description. Figure 4-Figure 17 , taking a battery of the present application as an example for explanation.

[0132] The battery includes a battery cell 20, a tab 40, and the temperature sensor 30 of the above embodiment. The tab can be used as the target connector in the above embodiment, and the tab 40 is electrically connected to the electrode terminal 211 of the battery cell 20. Part of the tab 40 is inserted into the slot structure 313 and connected to the connection structure 314. The insertion direction X of the slot structure 313 is perpendicular to the thickness direction Y of the tab 40.

[0133] The thickness direction Y of the tab 40 refers to the thickness direction Y of the portion of the tab 40 that is plugged into the slot structure 313 .

[0134] The connection between the tab 40 and the connection structure 314 includes, but is not limited to, one or more combinations of snap connection, screw connection, and bonding.

[0135] Since the battery includes all the technical features of the temperature sensor 30, the effects are the same as those described above and will not be described in detail here.

[0136] In some embodiments, please refer to Figure 4 , Fig. 9 , Fig.11 , Fig.12 and Fig.13 The connecting structure 314 includes a snap-fitting protrusion 3141 . An embedding structure 41 is formed on the surface of the tab 40 along the thickness direction Y of the tab 40 . The snap-fitting protrusion 3141 is located in the embedding structure 41 .

[0137] The embedded structure 41 can be a snap-in hole or a groove, and the embedded structure 41 can accommodate the snap-in protrusion 3141 and restrict the snap-in protrusion 3141 therein. Taking the embedded structure 41 as a snap-in hole as an example, the snap-in hole is a rectangular hole, and the snap-in protrusion 3141 is a strip protrusion, which is located in the rectangular hole.

[0138] The snap-fitting protrusion 3141 and the bar 40 are snap-fitted together, which makes assembly and disassembly more convenient than installing the housing 31 by screws or bonding.

[0139] In some embodiments, please refer to Figure 4 and Fig.11 The connecting part 312 includes a first connecting part 3121 and a second connecting part 3122. The first connecting part 3121 is connected to the main body part 311. The end of the first connecting part 3121 away from the main body part 311 is connected to the second connecting part 3122. The first connecting part 3121, the second connecting part 3122 and the main body part 311 together form a slot structure 313. Along the thickness direction Y of the bar piece 40, the second connecting part 3122 and the main body part 311 are located on both sides of the bar piece 40.

[0140] When the slot structure 313 of the shell 31 is plugged into the tab 40, the second connection portion 3122 and the main body portion 311 are located on both sides of the tab 40. The second connection portion 3122 can be set between the tab 40 and the insulating cover 50, and the main body portion 311 can be set between the tab 40 and the battery cell 20. Alternatively, the second connection portion 3122 is set between the tab 40 and the battery cell 20, and the main body portion 311 is set between the tab 40 and the insulating cover 50, so that the shell 31 can make full use of the space on both sides of the tab 40 to improve space utilization; at the same time, the first connection portion 3121 can limit the insertion depth of the slot structure 313, that is, when the slot structure 313 is inserted to the maximum depth, the first connection portion 3121 abuts against an edge of the tab 40, so that the shell 31 can be installed at a predetermined position of the tab 40, thereby facilitating the connection between the shell 31 and the tab 40.

[0141] In some embodiments, please refer to Fig. 9 , Fig.12 and Fig.13 A notch 42 is formed at one end of the tab 40, and the side of the notch 42 includes two oppositely arranged first side edges 421, each of which is formed with an embedded structure 41, and the embedded structure 41 includes a card slot, and the connecting portion 312 includes two first connecting portions 3121 and two second connecting portions 3122, the two first connecting portions 3121 are respectively located on the opposite sides of the main body 311, and the two second connecting portions 3122 are respectively located on the opposite sides of the main body 311, and the two first connecting portions 3121 are respectively connected to the main body 311, and each first connecting portion 3121 is connected to the second connecting portion 3122. On the same side of the main body 311, the first connecting portion 3121, the second connecting portion 3122 and the main body 311 are jointly surrounded by a slot structure 313, each first side edge 421 is located in the slot structure 313, and the snap-in protrusion 3141 is located in the card slot.

[0142] When the shell 31 and the bar 40 are installed, a notch 42 can be set on one side of the bar 40, and the shell 31 is inserted into the notch 42 through the slot structure 313. When the first connecting portion 3121 abuts against the side of the bar 40, it is connected to the bar 40 through the connecting structure 314, and is plugged into the bar 40 through the slot structures 313 on both sides of the shell 31. Compared with the structure in which the shell 31 is installed on one side of the bar 40, the space on both sides of the bar 40 can be fully utilized, and the shell 31 can be installed on the bar 40 to improve space utilization.

[0143] In a first alternative embodiment of the battery, please refer to Figure 4 , Fig.11 , Fig.14 and Fig.15 The battery includes a temperature sensor 30, a battery cell 20 and a tab 40. The tab 40 is electrically connected to the electrode terminal of the battery cell 20. The temperature sensor 30 includes a temperature measuring component 33 and a shell 31. The temperature component is located in the accommodating space of the shell 31 and is spaced apart from all the side walls in the shell 31. A glue layer 32 is filled between the temperature measuring component 33 and the side walls of the shell 31. The shell 31 includes a main body 311 and a connecting part 312. An accommodating space is formed inside the main body 311. An opening is formed at one end of the main body 311. The opening is connected to the accommodating space. Glue can be injected into the accommodating space through the opening to solidify the glue to form the above-mentioned glue layer 32. The connecting portion 312 includes a first connecting portion 3121 and a second connecting portion 3122. The first connecting portion 3121 is connected to the main body 311. One end of the first connecting portion 3121 away from the main body 311 is connected to the second connecting portion 3122. The first connecting portion 3121, the second connecting portion 3122 and the main body 311 are combined to form a slot structure 313. Along the insertion direction X of the slot structure 313, the connecting structure 314 is spaced apart from the first connecting portion 3121. The connecting structure 314 includes a snap-fitting protrusion 3141 formed on the second connecting portion 3122. An embedded structure 41 is formed on the surface of the tab 40. The snap-fitting protrusion 3141 is located in the embedded structure 41.

[0144] In a second alternative embodiment of the battery, see Fig. 9 , Fig.12 and Fig.13, which is different from the first optional embodiment, is that a notch 42 is formed at one end of the tab 40, and the side of the notch 42 includes two oppositely arranged first side edges 421, each of which is formed with an embedded structure 41, and the embedded structure 41 includes a card slot, and the connecting portion 312 includes two first connecting portions 3121 and two second connecting portions 3122, the two first connecting portions 3121 are respectively located on the opposite sides of the main body 311, and the two second connecting portions 3122 are respectively located on the opposite sides of the main body 311, and the two first connecting portions 3121 are respectively connected to the main body 311, and each first connecting portion 3121 is connected to the second connecting portion 3122. On the same side of the main body 311, the first connecting portion 3121, the second connecting portion 3122 and the main body 311 are jointly surrounded by a slot structure 313, each first side edge 421 is located in the slot structure 313, and the snap-in protrusion 3141 is located in the card slot.

[0145] In the first and second optional embodiments mentioned above, the shell 31 and the tab 40 can be plugged in through the slot structure 313, and the shell 31 and the tab 40 can be snap-fitted and fixed through the snap-fit ​​protrusion 3141. Through this connection method, on the one hand, the narrow space on both sides of the tab 40 can be fully utilized to install the temperature sensor 30, so as to improve the space utilization rate of the battery box; on the other hand, it is convenient for disassembly and assembly.

[0146] 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 replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate 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 housing of a temperature sensor, characterized in that: include: A main body, wherein a receiving space is formed inside the main body, and an opening is formed at one end of the main body, wherein the opening is communicated with the receiving space; The connecting portion is located outside the main body and connected to the main body. The connecting portion and the main body together enclose a slot structure. The inner surface of the slot wall of the slot structure is formed with a connecting structure. The connecting structure is used to connect to the target connector to limit the movement of the main body relative to the target connector along the plug-in direction of the slot structure.

2. The housing of the temperature sensor according to claim 1, characterized in that: The connecting part includes a first connecting part and a second connecting part, the first connecting part is connected to the main body part, and one end of the first connecting part facing away from the main body part is connected to the second connecting part, the first connecting part, the second connecting part and the main body part together form the slot structure, and along the plug-in direction of the slot structure, the connecting structure is spaced apart from the first connecting part.

3. The housing of the temperature sensor according to claim 2, characterized in that: The connection structure is formed on a surface of the second connection portion facing the main body portion, or the connection structure is formed on a surface of the main body portion facing the second connection portion.

4. The housing of the temperature sensor according to claim 1, characterized in that: The connecting part includes two first connecting parts and two second connecting parts, the two first connecting parts are respectively located on opposite sides of the main body, the two second connecting parts are respectively located on opposite sides of the main body, the two first connecting parts are respectively connected to the main body, each first connecting part is connected to the second connecting part, and on the same side of the main body, the first connecting parts, the second connecting parts and the main body together enclose the slot structure, and along the plugging direction of the slot structure, the connecting structure is spaced apart from the first connecting part.

5. The housing of the temperature sensor according to claim 4, characterized in that: The main body includes a first part and a second part, the first part has the accommodating space formed inside, the first part is connected to the second part on both sides along a first direction, the first direction is the same as the spacing direction of the two first connecting parts, and on the same side of the main body, the first part, the second part, the first connecting part and the second connecting part together form the slot structure.

6. The housing of the temperature sensor according to claim 5, characterized in that: The connection structure is formed on a surface of the second connection portion facing the second part, or the connection structure is formed on a surface of the second part facing the second connection portion.

7. The housing of the temperature sensor according to any one of claims 1 to 6, characterized in that: The connection structure includes a snap-fit ​​protrusion; Alternatively, the connection structure comprises a connection hole, the connection hole passes through the groove wall where the connection hole is located, and the axis of the connection hole is arranged at an angle to the groove wall where the connection hole is located.

8. The housing of the temperature sensor according to any one of claims 1 to 6, characterized in that: The material of the connecting part includes elastic material.

9. A temperature sensor, characterized in that: include: Temperature measuring components; According to the housing of the temperature sensor according to any one of claims 1 to 8, the temperature measuring component is arranged in the accommodating space.

10. The temperature sensor according to claim 9, characterized in that The temperature sensor further comprises a glue layer, the temperature measuring component is spaced apart from the inner wall of the main body, and the glue layer is filled between the temperature measuring component and the inner wall of the main body.

11. A battery, characterized in that: include: Battery cells; A bar, the bar being the target connector and being electrically connected to the electrode terminal of the battery cell ； According to the temperature sensor as described in claim 9 or 10, part of the bar piece is inserted into the slot structure and connected to the connecting structure, and the insertion direction of the slot structure is perpendicular to the thickness direction of the bar piece.

12. The battery according to claim 11, characterized in that The connection structure includes a snap-on protrusion. An embedded structure is formed on the surface of the tab along the thickness direction of the tab. The snap-on protrusion is located in the embedded structure.

13. The battery according to claim 12, characterized in that The connecting part includes a first connecting part and a second connecting part, the first connecting part is connected to the main body part, and one end of the first connecting part facing away from the main body part is connected to the second connecting part, the first connecting part, the second connecting part and the main body part together form the slot structure, and along the thickness direction of the bar piece, the second connecting part and the main body part are located on both sides of the bar piece.

14. The battery according to claim 12, characterized in that A notch is formed at one end of the tab, and the side edges of the notch include two oppositely arranged first side edges, each of which includes the embedded structure, and the embedded structure includes a card slot, and the connecting portion includes two first connecting portions and two second connecting portions, the two first connecting portions are respectively located on opposite sides of the main body, and the two second connecting portions are respectively located on opposite sides of the main body, the two first connecting portions are respectively connected to the main body, and each of the first connecting portions is connected to the second connecting portion, and on the same side of the main body, the first connecting portion, the second connecting portion and the main body together enclose the slot structure, each of the first side edges is located in the slot structure, and the card-connecting protrusion is located in the card slot.

15. An electrical device, characterized in that: The battery comprises the battery according to any one of claims 11 to 14, wherein the battery is used to provide electrical energy to the electrical device.

Images