Battery device, electric equipment and temperature sampling assembly

Abstract

The utility model discloses a battery device, electric equipment and a temperature sampling assembly. The battery device comprises a measured component and a temperature sampling assembly, the temperature sampling assembly comprises a shell and a temperature sensor arranged in the shell, the shell comprises a body, an electric connection part and a heat conduction part, the electric connection part and the heat conduction part are arranged on the body, and the electric connection part is electrically connected with the temperature sensor. And the heat conduction part is exposed out of the shell and is in heat conduction connection with the electric connection part and the tested component. According to the embodiment, the temperature sensor is arranged in the shell, the heat conduction part can conduct the temperature of the measured component to the temperature sensor, direct contact between the measured component and the temperature sensor is reduced, and the electric connection part can output the signal of the temperature sensor to the outside. The direct contact between an external plug connector, a wire harness, an FFC or other adapters and the temperature sensor is reduced, so that the interference of the ambient environment on the temperature sensor can be reduced, and the service life of the temperature sensor is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery, in particular to a battery device, an electric equipment and a temperature sampling assembly. BACKGROUND

[0002] Energy saving and emission reduction is the key to the sustainable development of the automobile industry. In this case, electric vehicles have become an important part of the sustainable development of the automobile industry due to their energy-saving and environmentally friendly advantages. For electric vehicles, battery technology is an important factor for their development.

[0003] In the use process of the battery monomer, the temperature of the battery monomer needs to be detected by the temperature sensor, and the collected temperature signal is transmitted to the outside. In the related technology, the temperature sensor is easily interfered by the surrounding environment and has a short service life. CONTENT OF THE UTILITY MODEL

[0004] In view of the above problems, the present application provides a battery device, an electric equipment and a temperature sampling assembly, which can reduce the interference of the temperature sensor by the surrounding environment.

[0005] In the first aspect, the present application provides a battery device, which comprises a measured component and a temperature sampling assembly. The temperature sampling assembly comprises a shell and a temperature sensor arranged in the shell. The shell comprises a body and an electric connection part and a heat conduction part arranged on the body. The electric connection part is electrically connected with the temperature sensor. The heat conduction part is exposed outside the shell and is in thermal connection with the electric connection part and the measured component.

[0006] In the above embodiment, the temperature sensor is arranged in the shell. The heat conduction part can conduct the temperature of the measured component to the temperature sensor, reducing the direct contact of the measured component with the temperature sensor. The electric connection part can output the signal of the temperature sensor to the outside, reducing the direct contact of the external plug-in connector, wire harness, FFC or other adapter with the temperature sensor. In this way, the interference of the temperature sensor by the surrounding environment can be reduced, and the service life of the temperature sensor is improved.

[0007] In some embodiments, the heat conduction part and the electric connection part are arranged on the same wall of the shell.

[0008] In the above embodiment, the space occupation of the heat conduction part and the electric connection part on the shell can be reduced, so that the volume of the temperature sampling assembly is small and the structure is compact.

[0009] In some embodiments, the surface area of the heat conduction part facing outside the body is greater than the surface area of the electric connection part facing inside the body.

[0010] In the above embodiment, the contact area of the heat conduction part with the measured component can be increased, so that the temperature of the measured component can be accurately measured.

[0011] In some embodiments, the outer surface of the protruding body of the heat-conducting part.

[0012] In the above-mentioned embodiments, the protruding part of the heat-conducting part is in contact with the measured component, and the contact area between the heat-conducting part and the measured component can be increased.

[0013] In some embodiments, the heat-conducting part is a plug-in terminal, the length of the plug-in terminal extends in a first direction, the surface of the electrical connection part facing a second direction is connected with the temperature sensor, and the first direction intersects the second direction.

[0014] In the above-mentioned embodiments, the heat-conducting part and the measured component can be in contact through plug-in, and the heat-conducting part and the measured component can be easily disassembled and replaced.

[0015] In some embodiments, the number of electrical connection parts is two, the two electrical connection parts are arranged at intervals, and the two electrical connection parts are respectively connected with the positive and negative poles of the temperature sensor.

[0016] In the above-mentioned embodiments, the temperature sensor can transmit signals to the outside through the electrical connection part, the direct contact between the external plug-in, wire harness, FFC or other adapter and the temperature sensor is reduced, and the service life of the temperature sensor is improved.

[0017] In some embodiments, the number of heat-conducting parts is two, the two heat-conducting parts are arranged at intervals, and the heat-conducting parts and the electrical connection parts are one-to-one corresponding and electrically connected with each other.

[0018] In the above-mentioned embodiments, the temperature sampling assembly can be in contact with the measured component through the two heat-conducting parts, the contact area is increased, and the accuracy of temperature measurement is improved.

[0019] In some embodiments, the heat-conducting part and the electrical connection part are an integral structure.

[0020] In the above-mentioned embodiments, the heat-conducting part and the electrical connection part are an integral structure, which can reduce the number of parts of the temperature sampling assembly, improve the manufacturing efficiency of the temperature sampling assembly, and improve the connection stability and structural strength of the heat-conducting part and the electrical connection part.

[0021] In some embodiments, the distance between the two heat-conducting parts is greater than the distance between the two electrical connection parts.

[0022] In the above-mentioned embodiments, the distance between the two heat-conducting parts is increased, so that the heat-conducting part can be in contact with the measured component with a larger size, to meet measured components of different sizes and improve the practicability of the temperature sampling assembly.

[0023] In some embodiments, the electrical connection part protrudes from the inner surface of the body.

[0024] In the above embodiment, the electric connection part is easy to be connected with the temperature sensor by welding, the welding difficulty of the electric connection part and the temperature sensor is reduced, and the connection stability of the electric connection part and the temperature sensor is improved.

[0025] In some embodiments, a gap is formed between the electric connection part, the inner surface of the body and the temperature sensor, and the gap is filled with an insulator.

[0026] In the above embodiment, the insulator can insulate the positive electrode and the negative electrode of the temperature sensor, and can also insulate the two electric connection parts, thereby reducing the risk of short circuit, and the filling of the insulator can reduce the invasion of water vapor and reduce the risk of failure of the temperature sensor.

[0027] In some embodiments, the body includes a first shell and a second shell formed separately from the first shell, the electric connection part, the heat conduction part and the temperature sensor are arranged on the second shell, and the first shell covers the temperature sensor.

[0028] In the above embodiment, the first shell and the second shell are formed separately, which can improve the production yield of the body, reduce the production cost, and facilitate the arrangement of the electric connection part, the heat conduction part and the temperature sensor on the second shell.

[0029] In some embodiments, the second shell includes a base body and a protruding rib arranged on the base body, the protruding rib and the base body form a receiving groove, and the temperature sensor is arranged in the receiving groove.

[0030] In the above embodiment, the temperature sensor is arranged in the receiving groove, so that the gap formed between the electric connection part, the inner surface of the body and the temperature sensor is located in the receiving groove, and the insulator can be injected into the receiving groove to fill the gap.

[0031] In some embodiments, the temperature sensor protrudes from the end of the protruding rib away from the base body.

[0032] In the above embodiment, the amount of insulator when filling the gap can be controlled, and the phenomenon that the water vapor in the gap cannot be discharged due to excessive insulator is reduced, thereby reducing the risk of failure of the temperature sensor caused by water vapor.

[0033] In some embodiments, a colloid is arranged in the shell, and the colloid is at least partially located in the receiving groove, and the colloid wraps the temperature sensor.

[0034] In the above embodiment, the colloid wraps the temperature sensor, which can reduce the risk of failure of the temperature sensor caused by the invasion of water vapor into the temperature sensor.

[0035] In some embodiments, a groove is formed on the base body, and the groove is located on the side of the protruding rib away from the receiving groove.

[0036] In the above-mentioned embodiments, the recess can accommodate the overflow of the adhesive in the shell, reduce the difficulty of dispensing amount control in the process, and increase the contact area between the adhesive and the shell and the bonding strength of the adhesive and the shell.

[0037] In some embodiments, the first shell is formed with a first positioning part, and the second shell is formed with a second positioning part, and the first positioning part is connected with the second positioning part.

[0038] In the above-mentioned embodiments, the first positioning part and the second positioning part can realize accurate positioning of the first shell and the second shell, so that the first shell and the second shell can be assembled accurately.

[0039] In some embodiments, one of the first positioning part and the second positioning part is a positioning groove, and the other is a positioning column.

[0040] In the above-mentioned embodiments, the first shell is easy to form the first positioning part, the second shell is easy to form the second positioning part, and the first positioning part and the second positioning part are easy to connect and disassemble.

[0041] In some embodiments, the first positioning part is arranged at a corner of the first shell, and the second positioning part is arranged at a corner of the second shell.

[0042] In the above-mentioned embodiments, the first positioning part and the second positioning part are arranged at the corners of the first shell and the second shell respectively, so that the first shell is easy to form the first positioning part, the second shell is easy to form the second positioning part, and the influence of the first positioning part and the second positioning part on the structures of the first shell and the second shell is reduced.

[0043] In a second aspect, the application provides a battery device, which includes the battery device in any of the above-mentioned embodiments.

[0044] In a third aspect, the application provides a temperature sampling assembly, which includes a shell and a temperature sensor arranged in the shell, the shell includes a body and an electrical connection part and a heat conduction part arranged on the body, the electrical connection part is electrically connected with the temperature sensor, and the heat conduction part is exposed outside the shell and is in heat conduction connection with the electrical connection part.

[0045] In the above-mentioned embodiments, the temperature sensor is arranged in the shell, the heat conduction part can conduct the temperature of the measured component to the temperature sensor, reducing the direct contact between the measured component and the temperature sensor, and the electrical connection part can output the signal of the temperature sensor to the outside, reducing the direct contact between the external plug-in connector, wire harness, FFC or other adapter and the temperature sensor, so that the temperature sensor can be less affected by the surrounding environment, and the service life of the temperature sensor is improved.

[0046] The above description is only a summary of the technical solutions of the present application. In order to enable one skilled in the art to better understand the technical means of the present application and to implement the same according to the contents of the description, and in order to enable the above and other purposes, characteristics and advantages of the present application to be more apparent and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0047] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not meant to limit the present application. Moreover, in the drawings, like reference numerals designate the same parts throughout the various drawings. In the drawings:

[0048] Figure 1 Structure diagram of a vehicle for some embodiments of the present application;

[0049] Figure 2 Structure diagram of a battery device for some embodiments of the present application;

[0050] Figure 3 Structure diagram of a temperature sampling assembly for some embodiments of the present application;

[0051] Figure 4 Structure diagram of a housing for some embodiments of the present application;

[0052] Figure 5 Structure diagram of a housing for some embodiments of the present application;

[0053] Figure 6 Structure diagram of a temperature sampling assembly for some embodiments of the present application;

[0054] Figure 7 Structure diagram of a temperature sampling assembly for some embodiments of the present application;

[0055] Figure 8 Structure diagram of a temperature sampling assembly for some embodiments of the present application.

[0056] Reference Signs: 1000, vehicle; 100, battery device; 200, controller; 300, motor; 10, box body; 11, first part; 12, second part; 20, battery cell; 30, temperature sampling assembly; 31, housing; 311, gap; 32, temperature sensor; 33, body; 331, first shell; 332, second shell; 333, base; 334, protruding rib; 335, accommodating groove; 336, recess; 34, electrical connection part; 35, heat conduction part; 337, first positioning part; 338, second positioning part; D1, first direction; D2, second direction. DETAILED DESCRIPTION

[0057] The embodiments of the present application will be described in detail below with reference to the drawings. The following examples are only used to more clearly illustrate the technical scheme of the present application, and therefore only serve as examples, but cannot be used to limit the protection scope of the present application.

[0058] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application; the terms "comprising," "comprises" and "including" as used herein are synonymous with and meant to have the same meaning as the term "including"; the term "coupled" as used herein means the joining of two members together with one or more intervening members.

[0059] 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 "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0060] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to each other. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0061] 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, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0062] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces).

[0063] In the description of the embodiments of the present application, the orientations or positional relationships indicated by the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and 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 devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0064] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0065] At present, from the development of market situation, the application of power battery is more and more extensive. Power battery is not only applied to energy storage power supply systems such as hydroelectric, thermal, wind and solar power stations, but also widely used in electric bicycles, electric motorcycles, electric vehicles and other electric vehicles, military equipment, aerospace and other fields. With the continuous expansion of the application field of power battery, the market demand is also increasing.

[0066] The battery apparatus mentioned in the embodiments of the present application can include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly can include a plurality of battery cells connected in series, parallel or mixed connection through a busbar component.

[0067] In some embodiments, the battery cell assembly is usually formed by arranging a plurality of battery cells.

[0068] As an example, the battery cell assembly can be a battery module formed by arranging and fixing a plurality of battery cells into an independent module. As an example, the battery module can be formed by bundling a plurality of battery cells with a cable tie.

[0069] In some embodiments, the battery device can be a battery pack including a case and one or more battery cell assemblies housed in the case.

[0070] As an example, the battery cell assembly can be a battery module, and the battery cell assembly can be housed in the case by fixing the battery module in the case.

[0071] As an example, the battery cell assembly can also be housed in the case by fixing a plurality of battery cells directly in the case.

[0072] As an example, the case can include a first case and a second case. The first case and the second case are fastened so that an enclosed space is formed inside the case to accommodate the battery cell assembly. Here, the enclosed means covered or closed, which can be sealed or unsealed. The first case can be a top cover or a bottom plate.

[0073] As an example, the case can include a top cover, a frame, and a bottom plate. The top cover and the bottom plate are connected to the frame, respectively, so that an enclosed space is formed inside the case to accommodate the battery cell assembly.

[0074] In some embodiments, the case can be part of a chassis structure of a vehicle. For example, part of the case can be at least part of a floor of the vehicle, or part of the case can be at least part of a cross beam and a longitudinal beam of the vehicle.

[0075] In the embodiments of the present application, the battery cell can be a secondary battery, which means that the battery cell can be used continuously by activating the active material through charging after discharging.

[0076] The battery cell can be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel-hydrogen battery, a nickel-cadmium battery, a lead-acid battery, etc. The embodiments of the present application are not limited in this regard. The battery cell can be in the shape of a cylinder, a flat body, a cuboid, or other shapes, etc. The embodiments of the present application are not limited in this regard. The battery cell is generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells, and soft-pack battery cells, and the embodiments of the present application are not limited in this regard.

[0077] The battery cell includes an electrode assembly and an electrolyte, and the electrode assembly is composed of a positive electrode tab, a negative electrode tab and a separator. The battery cell mainly relies on the movement of metal ions between the positive electrode tab and the negative electrode tab to work. The positive electrode tab includes a positive current collector and a positive active material layer, and the positive active material layer is coated on the surface of the positive current collector. The current collector without the positive active material layer protrudes from the current collector with the positive active material layer, and the current collector without the positive active material layer serves as the positive electrode tab. Taking a lithium ion battery as an example, the material of the positive current collector can be aluminum, and the positive active material can be lithium cobaltate, lithium iron phosphate, ternary lithium or lithium manganate, etc. The negative electrode tab includes a negative current collector and a negative active material layer, and the negative active material layer is coated on the surface of the negative current collector. The current collector without the negative active material layer protrudes from the current collector with the negative active material layer, and the current collector without the negative active material layer serves as the negative electrode tab. The material of the negative current collector can be copper, and the negative active material can be carbon or silicon, etc. In order to ensure that the fuse does not occur when passing a large current, the number of positive electrode tabs is multiple and stacked together, and the number of negative electrode tabs is multiple and stacked together. The material of the separator can be PP (polypropylene) or PE (polyethylene) or the like.

[0078] The battery cell needs to be provided with a temperature sensor to monitor the temperature of the battery cell, to ensure the safety and performance of the battery cell. When the battery cell is at a high temperature, it may occur overheating, thermal runaway or explosion, etc. dangerous situation, through the temperature sensor can real-time monitoring of the temperature of the battery cell, and the data is transmitted to the battery management system or controller. When the temperature exceeds the safe range, the system can take appropriate measures, such as disconnecting the charging or discharging circuit, to avoid further danger. Secondly, during the charging process of the battery cell, the change of temperature will affect the charging efficiency and charging speed, through the temperature sensor can real-time monitoring of the temperature change of the battery, and the charging current and voltage are adjusted accordingly, to maintain the safety and efficiency of the charging. In the related art, the temperature sensor is exposed to the surrounding environment, and is interfered by the surrounding environment, resulting in a shorter service life.

[0079] In order to improve the service life of the temperature sensor, the application provides a temperature sampling assembly, which comprises a shell and a temperature sensor arranged in the shell. The shell comprises a body and an electrical connection part and a heat conduction part arranged on the body. The electrical connection part is electrically connected with the temperature sensor, and the heat conduction part is exposed outside the shell and is in thermal connection with the electrical connection part and the measured part. The temperature sensor is arranged in the shell, the heat conduction part can conduct the temperature of the battery monomer to the temperature sensor, reducing the direct contact between the battery monomer and the temperature sensor, and the electrical connection part can output the signal of the temperature sensor to the outside, reducing the direct contact between the external plug-in connector, wire harness, FFC or other adapter and the temperature sensor, so that the temperature sensor can be less interfered by the surrounding environment, and the service life of the temperature sensor is improved.

[0080] The technical solutions described in the embodiments of the application are applicable to various battery monomer using electric devices, for example, mobile phones, portable devices, notebook computers, electric vehicles, electric toys, electric tools, vehicles, ships and spacecraft, etc. For example, the spacecraft includes an airplane, a rocket, a space shuttle and a spacecraft, etc.

[0081] The following embodiments are described for the convenience of illustration, taking a vehicle 1000 as an example for a power device of an embodiment of the application.

[0082] Please refer to Figure 1 , Figure 1 The vehicle 1000 structure schematic diagram provided by some embodiments of the application. The vehicle 1000 can be a fuel automobile, a gas automobile or a new energy automobile, and the new energy automobile can be a pure electric automobile, a hybrid electric automobile or a range extended automobile, etc. The vehicle 1000 is internally provided with a battery device 100, which can be arranged at the bottom, head or tail of the vehicle 1000. The battery device 100 can be used for power supply of the vehicle 1000, for example, the battery device 100 can be used as the operating power supply of the vehicle 1000. The vehicle 1000 can also include a controller 200 and a motor 300, and the controller 200 is used to control the battery device 100 to supply power to the motor 300, for example, for the working power demand of the vehicle 1000 during starting, navigation and driving.

[0083] In some embodiments of the application, the battery device 100 can not only be used as the operating power supply of the vehicle 1000, but also be used as the driving power supply of the vehicle 1000, instead of or partially instead of fuel or natural gas to provide driving power for the vehicle 1000.

[0084] In some embodiments, the battery device 100 can be an energy storage device. The energy storage device includes an energy storage container, an energy storage cabinet, etc.

[0085] Please refer to Figure 2 , Figure 2The exploded structural schematic diagram of the battery device 100 is provided for some embodiments of the present application. The battery device 100 comprises a box 10 and a battery cell 20, wherein the battery cell 20 is accommodated in the box 10. The box 10 is used to provide an accommodation space for the battery cell 20, and the box 10 can adopt various structures.

[0086] In some embodiments, the box 10 can comprise a first part 11 and a second part 12, wherein the first part 11 and the second part 12 are mutually covered, and the first part 11 and the second part 12 jointly define an accommodation space for accommodating the battery cell 20. The second part 12 can be a hollow structure with one end open, and the first part 11 can be a plate structure, which is covered on the open side of the second part 12 to jointly define the accommodation space with the second part 12. The first part 11 and the second part 12 can also be hollow structures with one side open, and the open side of the first part 11 is covered on the open side of the second part 12. Of course, the box 10 formed by the first part 11 and the second part 12 can have various shapes, such as a cylinder, a cuboid, etc.

[0087] In the battery device 100, the battery cell 20 can be multiple, and the multiple battery cells 20 can be connected in series, in parallel or in a mixed manner. The mixed manner means that the multiple battery cells 20 are connected in series and in parallel. The multiple battery cells 20 can be directly connected in series, in parallel or in a mixed manner, and then the whole of the multiple battery cells 20 is accommodated in the box 10. Of course, the battery device 100 can also be that the multiple battery cells 20 are connected in series, in parallel or in a mixed manner to form a battery module, and then the multiple battery modules are connected in series, in parallel or in a mixed manner to form a whole, which is accommodated in the box 10. The battery device 100 can also comprise other structures, for example, the battery device 100 can also comprise a current collecting component for realizing the electrical connection between the multiple battery cells 20.

[0088] Each battery cell 20 can be a secondary battery or a primary battery, and can also be a lithium-sulfur battery, a sodium-ion battery or a magnesium-ion battery, but is not limited thereto. The battery cell 20 can be in the shape of a cylinder, a flat body, a cuboid or other shapes, etc.

[0089] According to some embodiments of the present application, please refer to Figure 2 and Figure 3 , Figure 3A structural schematic diagram of a temperature sampling assembly 30 of some embodiments of the present application. The battery device 100 of the embodiments of the present application comprises a measured component and the temperature sampling assembly 30, the temperature sampling assembly 30 comprising a housing 31 and a temperature sensor 32 arranged in the housing 31, the housing 31 comprising a body 33 and an electrical connecting part 34 and a heat conducting part 35 both arranged on the body 33, the electrical connecting part 34 being electrically connected with the temperature sensor 32, and the heat conducting part 35 being exposed outside the housing 31 and being in thermal connection with both the electrical connecting part 34 and the measured component.

[0090] In the above embodiments, the temperature sensor 32 is arranged in the housing 31, the heat conducting part 35 can conduct the temperature of the measured component to the temperature sensor 32, reducing the direct contact between the measured component and the temperature sensor 32, and the electrical connecting part 34 can output the signal of the temperature sensor 32 to the outside, reducing the direct contact between the external plug-in connector, wire harness, FFC or other adapter and the temperature sensor 32, which can reduce the interference of the temperature sensor 32 by the surrounding environment and improve the service life of the temperature sensor 32.

[0091] Specifically, the measured component can be a battery monomer 20, and the temperature sampling assembly 30 can measure the temperature of each part of the battery monomer 20. The temperature sampling assembly 30 of the embodiments of the present application can also be applied to the fields of household appliances, indoor temperature monitoring, fire alarm, etc.

[0092] The temperature sensor 32 is used to obtain temperature information, and the temperature sensor 32 is a sensor that can sense temperature changes and convert the physical signals of temperature changes into electrical signals that can be used as output. The temperature sensor 32 can specifically be an NTC (Negative Temperature Coefficient) thermistor, which measures according to the characteristics of the resistance value changing with temperature. When the temperature rises, the resistance value of the thermistor will decrease, and when the temperature decreases, the resistance value will increase. The thermistor can be made of a semiconductor ceramic formed by one or more than two kinds of metal oxides such as manganese, copper, cobalt, iron, nickel, zinc, etc., which can accurately measure the temperature.

[0093] The body 33 can be made of insulating materials such as epoxy resin, silicone, polyurethane, polytetrafluoroethylene, etc., among which the epoxy resin has good insulation performance, chemical resistance and mechanical strength. The electrical connecting part 34 and the heat conducting part 35 can be made of metal materials, and the body 33, the electrical connecting part 34 and the heat conducting part 35 can be formed by insert injection molding.

[0094] The body 33 wraps the outer surface of the temperature sensor 32, which can provide good protection and insulation, reducing the risk of moisture, corrosion and other adverse effects of the temperature sensor 32. In addition, the body 33 can also provide additional mechanical strength and anti-vibration capability, reducing the risk of direct damage to the temperature sensor 32 by external stress.

[0095] The heat-conducting part 35 can be connected to the measured component by plug-in, welding, crimping, etc. The heat-conducting part 35 can be designed in different structures to meet the sampling connection requirements of various scenes. The temperature of the measured component can be conducted to the temperature sensor 32 through the heat-conducting part 35 and the electrical connection part 34. The signal of the temperature sensor 32 can be transmitted to the outside through the electrical connection part 34. When the measured component is a conductive material such as metal, the heat-conducting part 35 can be connected to the measured component through an insulating material to reduce the occurrence of short circuit.

[0096] Please refer to Figure 4 and Figure 5 , Figure 4 and Figure 5 are structural schematic diagrams of the shell 31 of some embodiments of the present application. In some embodiments, the heat-conducting part 35 and the electrical connection part 34 are both arranged on the same wall of the shell 31.

[0097] In the above embodiments, the space occupation of the heat-conducting part 35 and the electrical connection part 34 on the shell 31 can be reduced, so that the volume of the temperature sampling assembly 30 is smaller and the structure is more compact.

[0098] Specifically, the heat-conducting part 35 and the electrical connection part 34 can be arranged on the bottom wall, the top wall or the same side wall of the shell 31. The heat-conducting part 35 and the electrical connection part 34 can be metal pads. The number of metal pads can be two. The two metal pads are respectively welded with the positive electrode and the negative electrode of the temperature sensor 32. In this way, the firm contact between the electrical connection part 34 and the temperature sensor 32 can be improved, and the risk of looseness or poor contact can be reduced, which helps to enhance the stability and accuracy of the temperature sensor 32. Moreover, the pad connection is a relatively simple and efficient connection method, which can be conveniently automated for manufacturing and assembly. The welding can be quickly completed, and no additional connector or fixing device is needed, which can save space. The pad connection can also reduce the contact impedance, thereby reducing the resistance change caused by poor contact or corrosion of the lead wire.

[0099] Please refer to Figure 4 and Figure 5 In some embodiments, the surface area of the heat-conducting part 35 facing outside the body 33 is greater than the surface area of the electrical connection part 34 facing inside the body 33.

[0100] In the above embodiments, the contact area of the heat-conducting part 35 with the measured component can be increased, thereby realizing accurate measurement of the temperature of the measured component.

[0101] Specifically, the heat conduction part 35 and the electrical connection part 34 can be in a stepped shape, and the cross-sectional area of the heat conduction part 35 is greater than that of the electrical connection part 34. The heat conduction part 35 and the electrical connection part 34 can both be circular, and the radius of the heat conduction part 35 is greater than that of the electrical connection part 34. The heat conduction part 35 and the electrical connection part 34 can both be square, and the side length of the heat conduction part 35 is greater than that of the electrical connection part 34. The heat conduction part 35 can be circular, and the electrical connection part 34 can be square, and the radius of the heat conduction part 35 is greater than or equal to the radius of the circumscribed circle of the electrical connection part 34. The heat conduction part 35 can be square, and the electrical connection part 34 can be circular, and the radius of the inscribed circle of the heat conduction part 35 is greater than that of the electrical connection part 34.

[0102] Please refer to Figure 4 In some embodiments, the heat conduction part 35 protrudes from the outer surface of the body 33.

[0103] In the above embodiments, the protruding part of the heat conduction part 35 is in contact with the measured component, and the contact area between the heat conduction part 35 and the measured component can be increased.

[0104] Specifically, the heat conduction part 35 protrudes from the outer surface of the body 33, and the heat conduction part 35 can be connected to the conductive carrier such as a wire, FFC, or metal sheet through welding or contact connection. The structure of the heat conduction part 35 protruding from the outer surface of the body 33 can be adjusted according to the connection interface between the heat conduction part 35 and the measured component to match different application structures.

[0105] Please refer to Figure 6 , Figure 6 A structural schematic diagram of the temperature sampling assembly 30 of some embodiments of the present application. In some embodiments, the heat conduction part 35 is a plug-in terminal, the length of the plug-in terminal extends along the first direction D1, and the surface of the electrical connection part 34 facing the second direction D2 is connected to the temperature sensor 32, and the first direction D1 intersects the second direction D2.

[0106] In the above embodiments, the heat conduction part 35 and the measured component can be in contact through plug-in, and the heat conduction part 35 and the measured component can be easily disassembled and replaced.

[0107] Specifically, the position of the plug-in terminal protruding from the body 33 can be adjusted according to the assembly surface of the heat conduction part 35 and the measured component. The first direction D1 can be the thickness direction of the side wall of the shell 31, and the second direction D2 can be the thickness direction of the bottom wall of the shell 31, and the first direction D1 is perpendicular to the second direction D2. The plug-in terminal can be circular or square, and the shape, size, and length of the plug-in terminal protruding from the outer surface of the body 33 can be designed according to actual needs.

[0108] Please refer to Figure 5 and Figure 6In some embodiments, the number of the electrical connection portions 34 is two, and the two electrical connection portions 34 are arranged at intervals, and the two electrical connection portions 34 are connected to the positive and negative poles of the temperature sensor 32 respectively.

[0109] In the above embodiments, the temperature sensor 32 can transmit signals to the outside through the electrical connection portions 34, and the direct contact between the external connectors, wire harnesses, FFCs or other adapters and the temperature sensor 32 is reduced, and the service life of the temperature sensor 32 is improved.

[0110] Specifically, one of the electrical connection portions 34 is connected to the positive pole of the temperature sensor 32, and the other electrical connection portion 34 is connected to the negative pole of the temperature sensor 32, and the two electrical connection portions 34 can be connected to the positive and negative poles of the temperature sensor 32 through soldering.

[0111] The two electrical connection portions 34 can be arranged on the same wall of the housing 31, or can be arranged on different walls of the housing 31. For example, the positive and negative poles of the temperature sensor 32 are distributed along the length direction of the housing 31, one of the electrical connection portions 34 can be arranged on one side wall along the length direction of the housing 31, and the other electrical connection portion 34 can be arranged on the other side wall along the length direction of the housing 31. Alternatively, the two electrical connection portions 34 can be arranged on two side walls along the width direction of the housing 31, or the two electrical connection portions 34 can be arranged on the same side wall along the width direction of the housing 31, or the two electrical connection portions 34 can be arranged on the bottom wall of the housing 31.

[0112] Please refer to Figure 4 and Figure 5 In some embodiments, the number of the heat conduction portions 35 is two, and the two heat conduction portions 35 are arranged at intervals, and the heat conduction portions 35 correspond to the electrical connection portions 34 one by one and are electrically connected to each other.

[0113] In the above embodiments, the temperature sampling assembly 30 can be in contact with the measured component through the two heat conduction portions 35, and the contact area is increased, so that the accuracy of temperature measurement is improved.

[0114] Specifically, the two heat conduction portions 35 can be arranged on the same wall of the housing 31, or can be arranged on different walls of the housing 31. The temperature of the temperature sampling assembly 30 can be conducted to the temperature sensor 32 through the two heat conduction portions 35 and the two electrical connection portions 34, and the signal of the temperature sensor 32 can be transmitted to the outside through the two electrical connection portions 34.

[0115] In some embodiments, the heat conduction portion 35 and the electrical connection portion 34 are in an integrated structure.

[0116] In the above-mentioned embodiments, the integrated structure of the heat conduction part 35 and the electrical connection part 34 can reduce the number of components of the temperature sampling assembly 30, improve the manufacturing efficiency of the temperature sampling assembly 30, and improve the connection stability and structural strength of the heat conduction part 35 and the electrical connection part 34.

[0117] Specifically, the heat conduction part 35 and the electrical connection part 34 can be integrally formed by stamping, and the heat conduction part 35 and the electrical connection part 34 can be made of the same material or different materials.

[0118] Please refer to Figure 6 In some embodiments, the distance between the two heat conduction parts 35 is greater than the distance between the two electrical connection parts 34.

[0119] In the above-mentioned embodiments, increasing the distance between the two heat conduction parts 35 allows the heat conduction part 35 to contact the measured component with a larger size, so as to satisfy measured components of different sizes and improve the practicability of the temperature sampling assembly 30.

[0120] Specifically, the distance between the two electrical connection parts 34 can be the distance between the positive and negative electrodes of the temperature sensor 32, and the distance between the two heat conduction parts 35 can be designed according to the actual needs of the electrical clearance or application environment.

[0121] Please refer to Figure 6 In some embodiments, the electrical connection part 34 protrudes from the inner surface of the body 33.

[0122] In the above-mentioned embodiments, the electrical connection part 34 is easy to be connected with the temperature sensor 32 by welding, which reduces the welding difficulty of the electrical connection part 34 and the temperature sensor 32, thereby improving the connection stability of the electrical connection part 34 and the temperature sensor 32.

[0123] Specifically, the protrusion of the electrical connection part 34 from the inner surface of the body 33 means that the electrical connection part 34 extends inwardly along the wall thickness direction of the body 33, and the shape, size and length of the protrusion of the electrical connection part 34 from the inner surface of the body 33 can be designed according to actual needs.

[0124] Please refer to Figure 6 In some embodiments, a gap 311 is formed between the electrical connection part 34, the inner surface of the body 33 and the temperature sensor 32, and the gap 311 is filled with an insulator.

[0125] In the above-mentioned embodiments, the insulator can insulate the positive and negative electrodes of the temperature sensor 32, and can also insulate the two electrical connection parts 34, thereby reducing the risk of short circuit, and the filling of the insulator can reduce the invasion of water vapor and reduce the risk of failure of the temperature sensor 32.

[0126] Specifically, the gap 311 can be cuboid, the length of the gap 311 can be the distance between the inner surface portions of the protruding bodies 33 of the two electrical connecting parts 34, the width of the gap 311 can be the width of the inner surface portions of the protruding bodies 33 of the electrical connecting parts 34, and the height of the gap 311 can be the distance between the inner surface of the wall where the electrical connecting parts 34 are located and the temperature sensor 32.

[0127] The insulator can be in liquid state or solid state, and can be made of insulating materials such as plastic, rubber, fiber products, etc.

[0128] Please refer to Figure 3 , Figure 6 and Figure 7 , Figure 7 are structural schematic diagrams of the temperature sampling assembly 30 of some embodiments of the present application. In some embodiments, the body 33 includes a first shell 331 and a second shell 332 formed separately from the first shell 331, the electrical connecting parts 34, the heat conducting part 35 and the temperature sensor 32 are arranged on the second shell 332, and the first shell 331 covers the temperature sensor 32.

[0129] In the above embodiments, the first shell 331 and the second shell 332 are formed separately, which can improve the production yield of the body 33, reduce the production cost, and facilitate the arrangement of the electrical connecting parts 34, the heat conducting part 35 and the temperature sensor 32 on the second shell 332.

[0130] Specifically, the first shell 331 can be formed by injection molding, the electrical connecting parts 34 and the heat conducting part 35 can be arranged on the second shell 332 by insert injection molding with the second shell 332, and the temperature sensor 32 can be arranged on the second shell 332 by welding with the electrical connecting parts 34. The second shell 332 can cover part of the surface of the temperature sensor 32, and the first shell 331 can cover the other surface of the temperature sensor 32.

[0131] Please refer to Figure 6 In some embodiments, the second shell 332 includes a base 333 and a protruding rib 334 arranged on the base 333, the protruding rib 334 and the base 333 enclose a receiving groove 335, and the temperature sensor 32 is arranged in the receiving groove 335.

[0132] In the above embodiments, the temperature sensor 32 is arranged in the receiving groove 335, so that the gap 311 formed between the electrical connecting parts 34, the inner surface of the body 33 and the temperature sensor 32 is located in the receiving groove 335, which facilitates the injection of the insulator into the receiving groove 335 to fill the gap 311.

[0133] Specifically, the base body 333 and the convex ribs 334 can be integrally injection molded, the electrically connecting part 34 and the heat conducting part 35 can be arranged on the base body 333, the convex ribs 334 can be arranged along the circumference of the base body 333, the convex ribs 334 can enclose the circular accommodating groove 335 with the base body 333, or can enclose the square accommodating groove 335, and the material of the convex ribs 334 can be the same as or different from that of the base body 333.

[0134] The temperature sensor 32 is arranged in the accommodating groove 335, and can be arranged entirely or partially in the accommodating groove 335.

[0135] Please refer to Figure 8 , Figure 8 FIG. 1 is a structural schematic diagram of a temperature sampling assembly 30 according to some embodiments of the present application. In some embodiments, the temperature sensor 32 protrudes from the end of the convex rib 334 away from the base body 333.

[0136] In the above embodiments, the amount of the insulating body when filling the gap 311 is facilitated to be controlled, and the phenomenon that the excess insulating body causes the water vapor in the gap 311 to be unable to be discharged is reduced, thereby reducing the risk that the water vapor causes the temperature sensor 32 to fail.

[0137] Specifically, the temperature sensor 32 protrudes from the end of the convex rib 334 away from the base body 333, and can be that the height of the top surface of the temperature sensor 32 is higher than the height of the end surface of the convex rib 334 away from the base body 333, and the height of the end surface of the convex rib 334 away from the base body 333 is higher than the height of the bottom surface of the temperature sensor 32.

[0138] In some embodiments, the shell 31 is provided with a gel, and the gel is at least partially located in the accommodating groove 335 and wraps the temperature sensor 32.

[0139] In the above embodiments, the gel wraps the temperature sensor 32, which can reduce the risk that the water vapor invades the temperature sensor 32 and causes the temperature sensor 32 to fail.

[0140] Specifically, the material of the gel can be the same as that of the insulating body, and can be that a small amount of the gel is first injected into the accommodating groove 335, so that the gel fills the gap 311 and discharges all the water vapor in the gap 311, a large amount of the gel is then injected into the first shell 331, and then the first shell 331 and the second shell 332 are assembled and connected, so that the gel wraps the temperature sensor 32.

[0141] Please refer to Figure 5 In some embodiments, the base body 333 is formed with a groove 336, and the groove 336 is located on the side of the convex rib 334 away from the accommodating groove 335.

[0142] In the above embodiments, the groove 336 can accommodate the overflow of the adhesive in the shell 31, reduce the difficulty of dispensing amount control in the process, and increase the contact area between the adhesive and the shell 31, and enhance the bonding strength between the adhesive and the shell 31.

[0143] Specifically, the number of the groove 336 can be one, and the groove 336 can be located on one side of the base 333 or can be arranged along the circumference of the base 333. The number of the groove 336 can also be multiple, such as two, three, four, etc. Multiple grooves 336 can be located on multiple sides of the base 333.

[0144] Please refer to Figure 3 and Figure 7 In some embodiments, the first shell 331 is formed with a first positioning part 337, and the second shell 332 is formed with a second positioning part 338. The first positioning part 337 is connected with the second positioning part 338 in cooperation.

[0145] In the above embodiments, the first positioning part 337 and the second positioning part 338 can realize accurate positioning of the first shell 331 and the second shell 332, so that the first shell 331 and the second shell 332 can be assembled accurately.

[0146] Specifically, the first positioning part 337 and the second positioning part 338 can be arranged at the same position of the first shell 331 and the second shell 332, respectively. For example, the first positioning part 337 is arranged at the middle position of the left side wall of the first shell 331, and the second positioning part 338 is also arranged at the middle position of the left side wall of the second shell 332.

[0147] Please refer to Figure 3 In some embodiments, one of the first positioning part 337 and the second positioning part 338 is a positioning groove, and the other is a positioning column.

[0148] In the above embodiments, the first shell 331 is easy to form the first positioning part 337, the second shell 332 is easy to form the second positioning part 338, and the first positioning part 337 and the second positioning part 338 are convenient to connect and disassemble in cooperation.

[0149] Specifically, the first positioning part 337 can be a positioning groove, and the second positioning part 338 can be a positioning column. Alternatively, the first positioning part 337 can be a positioning column, and the second positioning part 338 can be a positioning groove. When the first positioning part 337 is a positioning column, and the second positioning part 338 is a positioning groove, the positioning column can extend along the lower surface of the first shell 331 towards the second shell 332, and the positioning groove can extend along the upper surface of the second shell 332 away from the first shell 331. In one embodiment, the positioning groove penetrates the second shell 332 along the thickness direction of the second shell 332.

[0150] The positioning groove can be a circular groove or a square groove, and the positioning column can be a circular column or a square column. The shape of the positioning groove can be the same as that of the positioning column, so that the positioning groove and the positioning column can be matched with each other.

[0151] Please refer to Figure 3 In some embodiments, the first positioning part 337 is arranged at a corner of the first shell 331, and the second positioning part 338 is arranged at a corner of the second shell 332.

[0152] In the above embodiments, the first positioning part 337 and the second positioning part 338 are arranged at the corners of the first shell 331 and the second shell 332 respectively, so that the first shell 331 is easy to form the first positioning part 337, the second shell 332 is easy to form the second positioning part 338, and the influence of the first positioning part 337 and the second positioning part 338 on the structure of the first shell 331 and the second shell 332 respectively is reduced.

[0153] Specifically, the first positioning part 337 can be arranged at one corner of the first shell 331, or can be arranged at multiple corners of the first shell 331, for example, two, three or four corners of the first shell 331 are formed with the first positioning part 337. Similarly, the second positioning part 338 can be arranged at one corner of the second shell 332, or can be arranged at multiple corners of the second shell 332, for example, two, three or four corners of the second shell 332 are formed with the second positioning part 338. The number and distribution position of the first positioning part 337 can be the same as those of the second positioning part 338, so that the first positioning part 337 on the first shell 331 and the second positioning part 338 on the second shell 332 are matched one by one.

[0154] The power consumption device of the embodiments of the present application comprises a battery device 100. The battery device 100 is used to provide electric energy for the power consumption device.

[0155] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; 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 be covered in the scope of the claims and the description of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery device, characterized by, include: The component under test; A temperature sampling assembly includes a housing and a temperature sensor disposed within the housing. The housing includes a main body and an electrical connection portion and a thermally conductive portion both disposed on the main body. The electrical connection portion is electrically connected to the temperature sensor, and the thermally conductive portion is exposed outside the housing and is thermally connected to both the electrical connection portion and the component being measured.

2. The battery device according to claim 1, characterized by The heat-conducting part and the electrical connection part are both located on the same wall of the housing.

3. The battery device of claim 2, wherein, The surface area of ​​the heat-conducting part facing out of the body is greater than the surface area of ​​the electrical connection part facing inward of the body.

4. The battery device according to any one of claims 1 to 3, characterized by, The heat-conducting part protrudes from the outer surface of the body.

5. The battery device of claim 4, wherein, The heat-conducting part is a plug-in terminal, the length of which extends along a first direction, and the surface of the electrical connection part facing the second direction is connected to the temperature sensor, wherein the first direction intersects the second direction.

6. The battery device of claim 1, wherein The number of electrical connections is two, and the two electrical connections are arranged at an interval. The two electrical connections are respectively connected to the positive and negative terminals of the temperature sensor.

7. The battery device of claim 6, wherein, The number of heat-conducting parts is two, and the two heat-conducting parts are arranged at intervals. The heat-conducting parts correspond one-to-one with the electrical connection parts and are electrically connected to each other.

8. The battery device of claim 7, wherein, The heat-conducting part and the electrical connection part are an integral structure.

9. The battery device according to claim 7 or 8, characterized by The distance between the two heat-conducting parts is greater than the distance between the two electrical connection parts.

10. The battery device of claim 1, wherein The electrical connection protrudes from the inner surface of the body.

11. The battery device of claim 10, wherein, A gap is formed between the electrical connection, the inner surface of the body, and the temperature sensor, and the gap is filled with an insulator.

12. The battery device of claim 1, wherein, The main body includes a first shell and a second shell formed separately from the first shell. The electrical connection part, the heat-conducting part and the temperature sensor are all disposed on the second shell, and the temperature sensor is covered by the first shell.

13. The battery device of claim 12, wherein, The second shell includes a base and a rib disposed on the base. The rib and the base form a receiving groove, and the temperature sensor is disposed in the receiving groove.

14. The battery device of claim 13, wherein, The temperature sensor protrudes from the end of the rib away from the substrate.

15. The battery device according to claim 13 or 14, characterized by The housing contains a colloid, which is at least partially located in the receiving groove, and the colloid encapsulates the temperature sensor.

16. The battery device of claim 15, wherein, A groove is formed on the substrate, and the groove is located on the side of the rib opposite to the receiving groove.

17. The battery device of claim 12, wherein, The first shell has a first positioning part, and the second shell has a second positioning part, and the first positioning part and the second positioning part are connected in cooperation.

18. The battery device of claim 17, wherein, One of the first positioning part and the second positioning part is a positioning groove, and the other is a positioning post.

19. The battery device according to claim 17 or 18, characterized by The first positioning part is located at the corner of the first shell, and the second positioning part is located at the corner of the second shell.

20. An electrical device, comprising: Includes the battery device according to any one of claims 1-19.

21. A temperature sampling assembly comprising: include: case; and A temperature sensor is disposed within the housing. The housing includes a body and an electrical connection portion and a heat-conducting portion both disposed on the body. The electrical connection portion is electrically connected to the temperature sensor, and the heat-conducting portion is exposed outside the housing and is thermally connected to the electrical connection portion.

22. The temperature sampling assembly of claim 21, wherein, The heat-conducting part and the electrical connection part are both located on the same wall of the housing.

23. The temperature sampling assembly of claim 21 or 22, wherein, The heat-conducting part protrudes from the outer surface of the body.

24. The temperature sampling assembly of claim 21, wherein, The number of the electric connection parts is two, the two electric connection parts are arranged at intervals, and the two electric connection parts are connected with the positive and negative poles of the temperature sensor respectively.

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