Battery device and electric device

Abstract

The application discloses a battery device and an electric device. The battery device comprises a box body, at least one battery cell assembly and a heat management assembly. The battery cell assembly is arranged in the box body. At least part of the heat management assembly is located in the box body and is used for adjusting the temperature of the battery cell assembly. The heat management assembly comprises a pipeline and a temperature sensor. An internal part of the pipeline forms a flow channel for the flow of a heat exchange medium. A mounting hole is arranged on the peripheral side of the pipeline. The mounting hole is communicated with the flow channel. The temperature sensor is mounted in the mounting hole and comprises a sensor main body and a probe connected to the sensor main body. At least part of the probe is located in the flow channel and is exposed to the flow channel. The probe is used for detecting the temperature of the heat exchange medium in the flow channel. According to the battery device, the probe can directly contact the heat exchange medium in the flow channel, and the collected temperature is more accurate. The peripheral side of the pipeline only needs to be provided with the mounting hole, and a structure protruding in the flow channel is not needed, so that the structure of the pipeline is simplified, and the manufacturing difficulty of the pipeline is reduced.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery device and an electrical device. Background Technology

[0002] Power battery systems are generally equipped with liquid cooling pipelines, which achieve thermal equilibrium control of the cells through coolant circulation. To monitor fluid parameters such as temperature, conductivity, and pressure of the coolant inside the pipeline in real time, a fluid temperature sensor needs to be installed on the main cooling pipeline. The installation of the temperature sensor necessitates a corresponding structure in the main pipeline, resulting in a complex structure and manufacturing difficulties, thus requiring improvement. Utility Model Content

[0003] In view of the above problems, this application provides a battery device and an electrical device that can collect the temperature of the heat exchange medium while simplifying the structure of the pipeline and reducing the difficulty of pipeline manufacturing; at the same time, it improves the accuracy of the collected temperature.

[0004] In a first aspect, this application provides a battery device, including a housing, at least one battery cell assembly, and a thermal management assembly. The battery cell assembly is disposed within the housing. At least a portion of the thermal management assembly is located within the housing and is used to regulate the temperature of the battery cell assembly. The thermal management assembly includes a pipe and a temperature sensor. The interior of the pipe forms a flow channel for the flow of a heat exchange medium. A mounting hole is provided on the periphery of the pipe, and the mounting hole communicates with the flow channel. The temperature sensor is mounted in the mounting hole and includes a sensor body and a probe connected to the sensor body. At least a portion of the probe is located within and exposed to the flow channel, and the probe is used to detect the temperature of the heat exchange medium within the flow channel.

[0005] In the above technical solution, the mounting hole is connected to the flow channel, the temperature sensor is installed in the mounting hole, and at least part of the probe is located in and exposed to the flow channel, so that the probe can directly contact the heat exchange medium in the flow channel and the collected temperature is more accurate; only mounting holes need to be set on the periphery of the pipeline, and there is no need to set a structure protruding into the flow channel, which simplifies the structure of the pipeline and reduces the difficulty of pipeline manufacturing.

[0006] In some embodiments, the thermal management assembly further includes a seal located between the outer wall of the temperature sensor and the inner wall of the mounting hole.

[0007] In the above technical solution, the sealing element is located between the outer wall of the temperature sensor and the inner wall of the mounting hole, thereby achieving a seal between the temperature sensor and the mounting hole.

[0008] In some embodiments, the seal is one or a plurality of seals spaced apart along the central axis of the mounting hole.

[0009] In the above technical solutions, when there is only one seal, the structure of the battery device is simplified; when there are multiple seals spaced apart along the central axis of the mounting hole, the sealing effect is improved.

[0010] In some embodiments, potting compound is used to fill the space between the outer wall of the temperature sensor and the inner wall of the mounting hole.

[0011] In the above technical solution, potting compound is filled between the outer wall of the temperature sensor and the inner wall of the mounting hole to fix the temperature sensor to the pipeline, and at the same time to seal the outer wall of the temperature sensor and the inner wall of the mounting hole.

[0012] In some embodiments, the temperature sensor is detachably connected to the conduit or glued to it.

[0013] In the above technical solution, the temperature sensor and the pipeline are detachably connected, which facilitates the replacement of the temperature sensor after it is damaged; the temperature sensor and the pipeline are connected by potting compound, which makes the connection between the temperature sensor and the pipeline secure and prevents the temperature sensor from falling off, while also sealing the temperature sensor and the pipeline.

[0014] In some embodiments, the probe includes a plurality of thermistors, at least some of which are spaced apart along the axial direction of the mounting hole.

[0015] In the above technical solution, at least some thermistors are spaced apart along the axial direction of the mounting holes, which can collect the temperature at different locations in the flow channel, reduce the local data deviation caused by single-point temperature measurement, and make the collected temperature more accurate.

[0016] In some embodiments, the outer peripheral wall of the pipeline is formed with a mounting protrusion, and the mounting hole extends from the inner peripheral wall of the pipeline to the mounting protrusion.

[0017] In the above technical solution, the mounting hole extends from the inner circumferential wall of the pipe to the mounting protrusion, increasing the axial length of the mounting hole and facilitating the installation of the temperature sensor.

[0018] In some embodiments, the temperature sensor is connected to the mounting ring by a thread, a snap-fit, or a potting compound.

[0019] In the above technical solution, the temperature sensor and the mounting convex ring are connected by a thread, which has high connection rigidity and adjustable locking force; the temperature sensor and the mounting convex ring are connected by a snap-fit, which is simple to operate and has high installation efficiency; the temperature sensor and the mounting convex ring are connected by potting compound, which is firm and can also be sealed.

[0020] In some embodiments, the pipeline includes a first pipeline and a second pipeline connected along the extension direction of the pipeline, the flow channel formed in the first pipeline is a first flow channel, the flow channel formed in the second pipeline is a second flow channel, the cross-sectional area of ​​the first flow channel is larger than the cross-sectional area of ​​the second flow channel, and the first pipeline and the second pipeline are connected by a step portion.

[0021] In the above technical solution, the cross-sectional area of ​​the first flow channel is larger than that of the second flow channel, making the pipeline a variable diameter pipe. The large cross-sectional area of ​​the first flow channel results in a low medium flow velocity, small pressure loss, and reduced energy consumption of the circulating pump. The small cross-sectional area of ​​the second flow channel enhances fluid turbulence and improves heat exchange capacity.

[0022] In some embodiments, the mounting hole is located on the periphery of the first pipeline.

[0023] In the above technical solution, the mounting hole is located on the periphery of the first pipeline, the first pipeline has a larger directional dimension, and sufficient assembly space can be reserved on the outer side of the pipe wall, providing ample operating space when assembling and disassembling the temperature sensor 20; the first flow channel has a large flow cross-sectional area, the medium flows uniformly, the probe is subjected to less impact, and the collected data is accurate.

[0024] In some embodiments, the mounting hole is located at one end of the first conduit near the second conduit.

[0025] In the above technical solution, the mounting hole is located at the end of the first pipeline near the second pipeline, and the stepped part can play a positioning role for the probe, reducing the probability that the probe will be offset along the direction of medium flow due to impact.

[0026] In some embodiments, the angle between the central axis of the mounting hole and the central axis of the first pipeline is in the range of 80° to 100°.

[0027] In the above technical solution, the angle between the central axis of the mounting hole and the central axis of the first pipeline is in the range of 80° to 100°, which can make the probe be installed in the flow channel approximately vertically, reducing the probability of the probe colliding or scratching with the inner wall of the first pipeline.

[0028] In some embodiments, the outer peripheral wall of the first conduit is formed with a mounting protrusion, the mounting hole extends from the inner peripheral wall of the first conduit to the mounting protrusion, and at least a portion of the sensor body is located within the mounting protrusion.

[0029] In the above technical solution, at least a portion of the sensor body is located inside the mounting protrusion, which serves to protect and position the sensor body.

[0030] In some embodiments, the space between the inner wall of the mounting ring and the outer wall of the sensor body is filled with potting compound.

[0031] In the above technical solution, potting compound is filled between the inner wall of the mounting ring and the outer wall of the sensor body, and the potting compound fixes and seals the mounting ring and the sensor body.

[0032] In some embodiments, the thermal management assembly further includes a seal comprising a first sealing section and a second sealing section, the first sealing section being located between the probe and the mounting hole, and the second sealing section being located between the probe and the inner wall of the mounting ring.

[0033] In the above technical solution, the first sealing section achieves a seal between the probe and the mounting hole; the second sealing section further seals the mounting hole.

[0034] In some embodiments, potting compound is filled between the inner wall of the mounting ring and the outer wall of the sensor body, and the potting compound fills the gap between the second sealing section and the mounting ring.

[0035] In the above technical solution, potting compound fills the gap between the second sealing section and the mounting protrusion to achieve a seal between the probe and the mounting protrusion.

[0036] In some embodiments, the flow channel within the stepped portion is a transition flow channel, which connects the first flow channel and the second flow channel, and the cross-sectional area of ​​the transition flow channel gradually decreases in the direction from the first pipe to the second pipe.

[0037] In the above technical solution, the cross-sectional area of ​​the transition channel gradually decreases from the first pipeline to the second pipeline, which reduces the probability of the fluid forming a large-scale vortex and backflow at the step, reduces local resistance loss, reduces the overall pressure loss of the pipeline, and reduces the power consumption of the circulating pump.

[0038] In some embodiments, the mounting hole is provided in the stepped portion.

[0039] In the above technical solution, the mounting hole is located at the step, and the probe can directly collect the temperature in the transition zone of the variable diameter, which can detect abnormal temperature gradients in advance and improve the fault warning response speed.

[0040] In some embodiments, the stepped portion includes a first stepped surface facing into the flow channel, the first stepped surface extending obliquely away from the central axis of the first pipeline in the direction from the second pipeline to the first pipeline, the central axis of the mounting hole being consistent with the oblique direction of the first stepped surface, and the probe being fitted with the first stepped surface.

[0041] In the above technical solution, the central axis of the mounting hole is consistent with the inclination direction of the first step surface, and the probe is in contact with the first step surface, reducing the probability of the probe generating additional eddies and dead zones.

[0042] In some embodiments, the angle between the central axis of the mounting hole and the central axis of the first or second pipeline is in the range of 15° to 45°.

[0043] In the above technical solution, the angle between the central axis of the mounting hole and the central axis of the first or second pipeline is in the range of 15° to 45°. Under the premise that the probe extends into the flow channel to a sufficient depth, the length of the probe extending into the flow channel is increased, thereby increasing the contact area between the probe and the heat exchange medium.

[0044] In some embodiments, the probe does not protrude from the inner peripheral wall of the second conduit.

[0045] In the above technical solution, the probe does not protrude from the inner circumferential wall of the second pipeline, reducing the interference of the probe on the heat exchange medium in the flow channel.

[0046] In some embodiments, an mounting protrusion is formed on the outer peripheral wall of the connection between the first pipeline and the second pipeline, the mounting hole extends from the inner peripheral wall of the first pipeline to the mounting protrusion, at least a portion of the sensor body is located inside the mounting protrusion, the sensor body is provided with a buckle, the mounting protrusion is provided with a locking hole, and the buckle is engaged in the locking hole.

[0047] In the above technical solution, the buckle is inserted into the buckle hole, so that the sensor body is circumferentially positioned with the mounting protrusion ring.

[0048] In some embodiments, the mounting ring has a foolproof protrusion, the sensor body has a foolproof groove, the foolproof protrusion is accommodated in the foolproof groove, and the foolproof protrusion and the card hole are spaced apart along the circumference of the mounting ring.

[0049] In the above technical solution, the anti-mistake protrusion is accommodated in the anti-mistake groove, reducing the probability of the sensor body being installed backwards.

[0050] In some embodiments, the first pipeline and the second pipeline are integrally formed.

[0051] In the above technical solution, the first pipeline and the second pipeline are integrally formed, which increases the overall structural strength of the pipeline and reduces the manufacturing difficulty of the pipeline.

[0052] Secondly, the present invention provides an electrical device, including a battery device according to an embodiment of the first aspect of the present invention.

[0053] In the above technical solution, the electrical device includes a battery device according to the first aspect of the present invention, the mounting hole is connected to the flow channel, the temperature sensor is installed in the mounting hole, at least part of the probe is located in the flow channel and exposed to the flow channel, so that the probe can directly contact the heat exchange medium in the flow channel and the collected temperature is more accurate; only mounting holes need to be provided on the periphery of the pipeline, and there is no need to provide a structure protruding into the flow channel, which simplifies the structure of the pipeline and reduces the difficulty of pipeline manufacturing.

[0054] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0055] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of a battery device according to some embodiments of the present invention; Figure 2 for Figure 1 A front view of a first embodiment of a thermal management component for a battery device; Figure 3 for Figure 2 A cross-sectional view of the thermal management components; Figure 4 for Figure 3 Enlarged view of thermal management component A; Figure 5 for Figure 2 Exploded view of the thermal management components; Figure 6 This is a perspective view of a thermal management component according to a second embodiment of the present invention; Figure 7 for Figure 6 A cross-sectional view of the thermal management components; Figure 8 for Figure 7 Exploded view of the thermal management components; Figure 9 for Figure 8 Enlarged view of thermal management component B; Figure 10 for Figure 6 A partial front view of the temperature sensor structure of the thermal management component; Figure 11 This is a partial structural cross-sectional view of the thermal management component according to the third embodiment of the present invention; Figure 12 This is a schematic diagram of an electrical device according to some embodiments of the present invention.

[0056] Figure label: 1000. Electrical appliances; 100. Battery device; 10. Thermal management component; 11. Piping; 110. First piping; 111. Second piping; 1110. Second pipe wall; 112. Stepped portion; 1120. First stepped surface; 12. Mounting protrusion; 121. Snap hole; 1211. Alternating groove; 1212. Snap groove; 122. First limiting surface; 123. Internal thread; 13. Flow channel; 131. First flow channel; 132. Second flow channel; 133. Transition flow channel; 14. Mounting hole; 143. Hole wall; 141. First hole wall; 142. Second hole wall; 15. Foolproof protrusion; 20. Temperature sensor; 21. Probe; 210. Thermistor; 211. Housing; 22. Sensor body; 220. Limiting end; 2201. Foolproof groove; 2202. Second limiting surface; 221. Insertion section; 2210. End face; 222. Sealing groove; 223. Buckle; 2230. Connecting section; 2231. Claw; 224. External thread; 24. Wire; 25. Terminal block; 30. Seal; 31. First sealing section; 32. Second sealing section; 33. Insertion hole; 40. Potting compound; 50. Housing; 51. First housing; 52. Second housing; 60. Battery cell assembly; 200. Vehicle body. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0058] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order or hierarchy.

[0059] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments.

[0060] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "attachment," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0061] In this invention, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0062] In the embodiments of this utility model, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this utility model shown in the drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this utility model.

[0063] In this utility model, "multiple" refers to two or more.

[0064] In the description of the embodiments of this application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0065] In the embodiments of this utility model, unless otherwise specified, all embodiments and optional embodiments of this utility model can be combined with each other to form new technical solutions.

[0066] In the embodiments of this utility model, unless otherwise specified, all technical features and optional technical features of this utility model can be combined with each other to form new technical solutions.

[0067] In embodiments of this invention, the battery device may include one or more battery cell assemblies for providing voltage and capacity. A battery cell assembly may include multiple battery cells connected in series, parallel, or mixed connections via a busbar. For example, a battery cell assembly is typically formed by arranging multiple battery cells; a battery cell assembly may also be a battery module, which is formed by arranging and fixing multiple battery cells into a single module. As an example, a battery module may be formed by bundling multiple battery cells together with cable ties.

[0068] The battery device can be a battery pack, which includes a housing and one or more individual battery cells housed within the housing. The individual battery cells can be battery modules, which can be housed within the housing by fixing the battery modules to the housing; alternatively, multiple individual battery cells can be housed within the housing by directly fixing them to the housing.

[0069] In embodiments of this application, the housing may include a first housing and a second housing. The first housing and the second housing are fastened together to form a closed space inside the housing for housing individual battery cells. Here, "closed" refers to covering or shutting down; it can be sealed or unsealed. The first housing may be a top cover or a bottom plate. For example, the housing may include a top cover, a frame, and a bottom plate. The top cover and the bottom plate are respectively connected to the frame, forming a closed space inside the housing for housing individual battery cells.

[0070] In embodiments of this application, the housing can be part of the vehicle's chassis structure. For example, a portion of the housing can be at least a part of the vehicle's floor, or a portion of the housing can be at least a part of the vehicle's crossbeams and longitudinal beams.

[0071] In some embodiments, the thermal management system may include modules such as a thermal management module, a main control module, a central control module, a power distribution module, and a fire protection module.

[0072] As an example, the thermal management module may include a liquid cooling unit that supplies coolant to each battery device via piping to regulate the temperature of the individual battery cells.

[0073] As an example, the main control module can serve as the battery management unit for the battery cluster, used to monitor and manage the battery cluster. The main control module can monitor information such as the current, voltage, power, or temperature of the battery cluster. For instance, it can control the charging and discharging current and voltage of the battery cluster. The main control module includes modules such as an auxiliary battery management unit (SBMU) and a fusion switch.

[0074] As an example, the master control module can serve as the battery management unit of a thermal management system, used to monitor and manage the thermal management system. The master control module can monitor information such as current, voltage, power, state of charge, and temperature of the thermal management system. For example, it can control the charging and discharging current and voltage of the thermal management system. As an example, the master control module includes modules such as an insulation monitoring module (IMM), a master battery management unit (MBMU), an Ethernet (ETH) module, and a fiber optic conversion module.

[0075] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also widely applied in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in aerospace and other fields. With the continuous expansion of power battery applications, market demand is also constantly increasing.

[0076] Liquid-cooled thermal management systems for equipment such as power batteries and steam turbines rely on circulating coolant for heat transfer and temperature control. The real-time temperature of the coolant is a core parameter for evaluating system heat exchange performance, identifying equipment overheating faults, and implementing unit operation control. In related technologies, a measuring chamber isolated from the flow channel is installed inside the pipe, with a temperature sensor extending into it. The measuring chamber transmits the temperature of the flowing medium to the sensor for temperature measurement. However, when the pipe has a changing diameter, the structure forming the measuring chamber and the steps at the pipe's diameter change point can cause problems during pipe manufacturing, hindering demolding and significantly reducing production yield and processing efficiency.

[0077] To simplify the pipeline structure and reduce manufacturing difficulty, while improving the accuracy of temperature acquisition, this application provides a battery device including a housing, at least one battery cell assembly, and a thermal management assembly. The battery cell assembly is disposed within the housing, and at least a portion of the thermal management assembly is located within the housing and is used to regulate the temperature of the battery cell assembly. The thermal management assembly includes a pipeline and a temperature sensor. The pipeline has a flow channel formed inside for the flow of a heat exchange medium, and a mounting hole is provided on the periphery of the pipeline, which communicates with the flow channel. The temperature sensor is mounted in the mounting hole and includes a sensor body and a probe connected to the sensor body. At least a portion of the probe is located within and exposed to the flow channel, and the probe is used to detect the temperature of the heat exchange medium within the flow channel.

[0078] In the above technical solution, the mounting hole is connected to the flow channel, the temperature sensor is installed in the mounting hole, and at least part of the probe is located in and exposed to the flow channel, so that the probe can directly contact the heat exchange medium in the flow channel and the collected temperature is more accurate; only mounting holes need to be set on the periphery of the pipeline, and there is no need to set a structure protruding into the flow channel, which simplifies the structure of the pipeline and reduces the difficulty of pipeline manufacturing.

[0079] The battery device disclosed in this application can be used in electrical devices that use batteries as a power source or in various energy storage systems that use batteries as energy storage elements. Electrical devices can be, but are not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0080] The electrical devices disclosed in this application can be gasoline-powered vehicles, natural gas-powered vehicles, or new energy vehicles. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery device is installed inside the vehicle, and the battery device can be located at the bottom, front, or rear of the vehicle. The battery device can be used to power the vehicle; for example, the battery device can serve as the vehicle's operating power source. The vehicle may also include a controller and a motor. The controller is used to control the battery device to supply power to the motor, for example, for the vehicle's starting, navigation, and operating power needs. In some embodiments of this application, the battery device can not only serve as the vehicle's operating power source but also as the vehicle's drive power source, replacing or partially replacing gasoline or natural gas to provide driving power for the vehicle.

[0081] The following is for reference. Figures 1-12 This invention describes a battery device and an electrical device according to embodiments of the present invention.

[0082] refer to Figures 1-4 In a first aspect, this utility model provides a battery device 100, including a housing 50, at least one battery cell assembly 60, and a thermal management component 10. The battery cell assembly 60 is disposed within the housing 50. At least a portion of the thermal management component 10 is located within the housing 50 and is used to regulate the temperature of the battery cell assembly 60. The thermal management component 10 includes a pipe 11 and a temperature sensor 20. The interior of the pipe 11 forms a flow channel 13 for the flow of a heat exchange medium. A mounting hole 14 is provided on the periphery of the pipe 11, and the mounting hole 14 communicates with the flow channel 13. The temperature sensor 20 is mounted in the mounting hole 14 and includes a sensor body 22 and a probe 21 connected to the sensor body 22. At least a portion of the probe 21 is located within and exposed to the flow channel 13. The probe 21 is used to detect the temperature of the heat exchange medium within the flow channel 13.

[0083] The housing 50 may include a first housing 51 and a second housing 52, which are fastened together to form a sealed space, and the battery cell assembly 60 is located in the sealed space.

[0084] Pipe 11 can be installed inside or outside the housing 50. For example, pipe 11 has a cylindrical tube structure. Flow channel 13 can be straight.

[0085] The cross-section of the mounting hole 14 can be circular, and the mounting hole 14 penetrates the peripheral wall of the pipe 11. The mounting hole 14 forms the mounting channel for the probe 21.

[0086] For example, the cross-sectional area of ​​the sensor body 22 is larger than that of the probe 21. At least a portion of the probe 21 is located within the flow channel 13, allowing the probe 21 to directly contact the heat exchange medium, collect the temperature of the heat exchange medium, and generate a temperature signal. The sensor body 22 is connected to the probe 21, and the sensor body 22 converts the temperature signal into a recognizable electrical signal for external transmission, enabling real-time uploading of temperature data.

[0087] The probe 21 includes a thermistor 210 and a housing 211, with the thermistor 210 located inside the housing 211. The housing 211 is formed by coating the thermistor 210 with adhesive. The housing 211 protects the thermistor 210.

[0088] The temperature sensor 20 may also include a wire 24 and a terminal block 25, with one end of the wire 24 connected to the sensor body 22 and the other end connected to the terminal block 25.

[0089] In the above technical solution, the mounting hole 14 is connected to the flow channel 13, the temperature sensor 20 is installed in the mounting hole 14, and at least part of the probe 21 is located in the flow channel 13 and exposed to the flow channel 13, so that the probe 21 can directly contact the heat exchange medium in the flow channel 13 and the collected temperature is more accurate; the periphery of the pipe 11 only needs to be provided with the mounting hole 14, and there is no need to provide a structure protruding into the flow channel 13, which simplifies the structure of the pipe 11 and reduces the manufacturing difficulty of the pipe 11.

[0090] See Figure 4 In some embodiments, the thermal management assembly 10 further includes a seal 30 located between the outer wall of the temperature sensor 20 and the hole wall 143 of the mounting hole 14.

[0091] In the above technical solution, the sealing element 30 is located between the outer wall of the temperature sensor 20 and the hole wall 143 of the mounting hole 14, thereby achieving a seal between the temperature sensor 20 and the mounting hole 14.

[0092] In some embodiments, see Figure 4The seal 30 may be one or multiple seals spaced apart along the central axis of the mounting hole 14, such as... Figure 7 As shown.

[0093] For example, when there is only one seal 30, the seal 30 can be a gasket; when there are multiple seals 30 spaced apart along the central axis of the mounting hole 14, the seal 30 can be a sealing ring.

[0094] In the above technical solution, when there is only one seal 30, the structure of the battery device 100 is simplified; when there are multiple seals 30 spaced apart along the central axis of the mounting hole 14, the sealing effect is improved.

[0095] See Figure 4 In some embodiments, the space between the outer wall of the temperature sensor 20 and the hole wall 143 of the mounting hole 14 is filled with potting compound 40.

[0096] For example, the hole wall 143 includes a first hole wall 141 and a second hole wall 142 disposed along the axial direction, with the first hole wall 141 close to the flow channel 13. The cross-sectional area of ​​the first hole wall 141 is smaller than the cross-sectional area of ​​the second hole wall 142. The first hole wall 141 is formed by the peripheral wall of the pipe 11, and the second hole wall 142 is located outside the pipe 11, surrounding the outer periphery of the hole formed by the mounting hole 14 on the peripheral wall of the pipe 11.

[0097] In the above technical solution, potting compound 40 is filled between the outer wall of the temperature sensor 20 and the hole wall 143 of the mounting hole 14 to fix the temperature sensor 20 to the pipeline 11, and at the same time seal the outer wall of the temperature sensor 20 and the hole wall 143 of the mounting hole 14.

[0098] In some embodiments, see Figure 7 The temperature sensor 20 can be detachably connected to the pipe 11 or connected with glue, such as... Figure 5 As shown.

[0099] In the above technical solution, the temperature sensor 20 is detachably connected to the pipe 11, which facilitates the replacement of the temperature sensor 20 after it is damaged; the temperature sensor 20 and the pipe 11 are connected by potting glue, which makes the connection between the temperature sensor 20 and the pipe 11 secure and prevents the temperature sensor 20 from falling off, and also seals the temperature sensor 20 and the pipe 11.

[0100] See Figure 7 as well as Figure 8 In some embodiments, the probe 21 includes a plurality of thermistors 210, at least some of which are spaced apart along the axial direction of the mounting hole 14.

[0101] For example: multiple thermistors 210 are installed on the sensor body 22.

[0102] In the above technical solution, at least some of the thermistors 210 are spaced apart along the axial direction of the mounting hole 14, which can collect the temperature at different positions in the flow channel 13, reduce the local data deviation caused by single-point temperature measurement, and make the collected temperature more accurate.

[0103] See Figures 2-4 In some embodiments, the outer peripheral wall of the pipe 11 is formed with a mounting protrusion 12, and the mounting hole 14 extends from the inner peripheral wall of the pipe 11 to the mounting protrusion 12.

[0104] For example, the inner wall of the mounting ring 12 forms a second hole wall 142. The mounting ring 12 can be cylindrical.

[0105] In the above technical solution, the mounting hole 14 extends from the inner peripheral wall of the pipe 11 to the mounting protrusion ring 12, thereby increasing the axial length of the mounting hole 14 and facilitating the installation of the temperature sensor 20.

[0106] In some embodiments, the temperature sensor 20 is threaded, snap-fitted, or potted to the mounting ring 12.

[0107] For example: See Figure 11 The outer peripheral wall of the sensor body 22 of the temperature sensor 20 is provided with an external thread 224, and the inner wall of the mounting ring 12 is provided with an internal thread 123. The external thread 224 and the internal thread 123 cooperate to make the temperature sensor 20 and the mounting ring 12 threadedly connected.

[0108] For example: See Figures 8-10 The outer peripheral wall of the sensor body 22 is provided with a buckle 223, and the mounting protrusion 12 is provided with a locking hole 121. The buckle 223 is inserted into the locking hole 121, so that the temperature sensor 20 is connected to the mounting protrusion 12 by a buckle.

[0109] For example: See Figure 3 The inner wall of the mounting ring 12 and the outer wall of the sensor body 22 are filled with potting compound 40 to make the temperature sensor 20 and the mounting ring 12 connected by the potting compound.

[0110] In the above technical solution, the temperature sensor 20 and the mounting protrusion ring 12 are connected by threads, which has high connection rigidity and adjustable locking force; the temperature sensor 20 and the mounting protrusion ring 12 are connected by snap-fit, which is simple to operate and has high installation efficiency; the temperature sensor 20 and the mounting protrusion ring 12 are connected by potting glue, which is firm and can also be sealed.

[0111] See Figure 3 as well as Figure 4In some embodiments, the pipe 11 includes a first pipe 110 and a second pipe 111 connected along the extension direction of the pipe 11. The flow channel 13 formed in the first pipe 110 is the first flow channel 131, and the flow channel 13 formed in the second pipe 111 is the second flow channel 132. The cross-sectional area of ​​the first flow channel 131 is larger than the cross-sectional area of ​​the second flow channel 132. The first pipe 110 and the second pipe 111 are connected by a step portion 112.

[0112] For example, the first pipe 110 and the second pipe 111 are coaxially arranged.

[0113] In the above technical solution, the cross-sectional area of ​​the first flow channel 131 is larger than that of the second flow channel 132, making the pipe 11 a variable diameter pipe. The large cross-sectional area of ​​the first flow channel 131 results in a low medium flow velocity, small pressure loss, and reduced energy consumption of the circulating pump. The small cross-sectional area of ​​the second flow channel 132 enhances fluid turbulence and improves heat exchange capacity.

[0114] See Figure 3 as well as Figure 4 In some embodiments, the mounting hole 14 is located on the periphery of the first pipe 110.

[0115] In the above technical solution, the mounting hole 14 is located on the periphery of the first pipeline 110. The first pipeline 110 has a larger radial dimension and can reserve sufficient assembly space on the outer side of the pipe wall, providing sufficient operating space when assembling and disassembling the temperature sensor 20. The first flow channel 131 has a large flow cross-sectional area, the medium flows uniformly, the probe 21 is subjected to less impact, and the collected data is accurate.

[0116] See Figure 3 as well as Figure 4 In some embodiments, the mounting hole 14 is located at one end of the first conduit 110 near the second conduit 111.

[0117] In the above technical solution, the mounting hole 14 is located at one end of the first pipeline 110 near the second pipeline 111, and the stepped portion 112 can position the probe 21, reducing the probability that the probe 21 will be displaced along the direction of medium flow by impact.

[0118] See Figure 3 as well as Figure 4 In some embodiments, the angle between the central axis of the mounting hole 14 and the central axis of the first pipeline 110 is in the range of 80° to 100°.

[0119] The angle between the central axis of the mounting hole 14 and the central axis of the first pipe 110 is in the range of 80° to 100°, meaning that the angle is any value within the above range, such as 80°, 85°, 90°, 95° or 100°.

[0120] In the above technical solution, the angle between the central axis of the mounting hole 14 and the central axis of the first pipe 110 is in the range of 80° to 100°, which can make the probe 21 be installed approximately vertically in the flow channel 13, reducing the probability of the probe 21 colliding or scratching with the inner wall of the first pipe 110.

[0121] See Figure 4 In some embodiments, the outer peripheral wall of the first conduit 110 is formed with a mounting protrusion 12, and the mounting hole 14 extends from the inner peripheral wall of the first conduit 110 to the mounting protrusion 12, with at least a portion of the sensor body 22 located within the mounting protrusion 12.

[0122] In the above technical solution, at least a portion of the sensor body 22 is located within the mounting protrusion 12, which serves to protect and position the sensor body 22.

[0123] See Figure 4 In some embodiments, potting compound 40 is filled between the inner wall of the mounting ring 12 and the outer wall of the sensor body 22.

[0124] In the above technical solution, the inner wall of the mounting protrusion 12 and the outer wall of the sensor body 22 are filled with potting compound 40, which fixes and seals the mounting protrusion 12 and the sensor body 22.

[0125] See Figure 4 In some embodiments, the thermal management assembly 10 further includes a seal 30, which includes a first sealing section 31 and a second sealing section 32. The first sealing section 31 is located between the probe 21 and the mounting hole 14, and the second sealing section 32 is located between the probe 21 and the inner wall of the mounting ring 12.

[0126] For example, the cross-sectional area of ​​the first sealing section 31 is smaller than that of the second sealing section 32. The first sealing section 31 and the second sealing section 32 are coaxially arranged, and the sealing element 30 is provided with a insertion hole 33, which axially penetrates the first sealing section 31 and the second sealing section 32. The side of the second sealing section 32 facing the first sealing section 31 is fitted against the outer peripheral wall of the pipeline 11 and fixed with adhesive.

[0127] In the above technical solution, the first sealing section 31 achieves the seal between the probe 21 and the mounting hole 14; the second sealing section 32 further seals the mounting hole 14.

[0128] See Figure 4 In some embodiments, potting compound 40 is filled between the inner wall of the mounting ring 12 and the outer wall of the sensor body 22, and the potting compound 40 fills the gap between the second sealing section 32 and the mounting ring 12.

[0129] In the above technical solution, potting compound 40 fills the gap between the second sealing section 32 and the mounting protrusion 12 to achieve a seal between the probe 21 and the mounting protrusion 12.

[0130] See Figure 6 as well as Figure 7 In some embodiments, the flow channel 13 in the step portion 112 is a transition flow channel 133, which connects the first flow channel 131 and the second flow channel 132. The cross-sectional area of ​​the transition flow channel 133 gradually decreases in the direction from the first pipe 110 to the second pipe 111.

[0131] In the above technical solution, the cross-sectional area of ​​the transition channel 133 gradually decreases in the direction from the first pipe 110 to the second pipe 111, which reduces the probability of the fluid forming a large-scale vortex and backflow at the step portion 112, reduces local resistance loss, reduces the overall pressure loss of the pipe 11, and reduces the power consumption of the circulating pump.

[0132] See Figure 7 In some embodiments, the mounting hole 14 is provided in the step portion 112.

[0133] In the above technical solution, the mounting hole 14 is located at the step portion 112, and the probe 21 can directly collect the temperature of the variable diameter transition zone, which can detect abnormal temperature gradients in advance and improve the fault warning response speed.

[0134] See Figure 7 In some embodiments, the step portion 112 includes a first step surface 1120 facing into the flow channel 13. The first step surface 1120 extends obliquely away from the central axis of the first pipe 110 in the direction from the second pipe 111 to the first pipe 110. The central axis of the mounting hole 14 is consistent with the oblique direction of the first step surface 1120. The probe 21 is in contact with the first step surface 1120.

[0135] In the above technical solution, the central axis of the mounting hole 14 is consistent with the tilt direction of the first step surface 1120, and the probe 21 is in contact with the first step surface 1120, reducing the probability of the probe 21 generating additional eddies and dead zones.

[0136] See Figure 7 In some embodiments, the angle between the central axis of the mounting hole 14 and the central axis of the first pipe 110 or the second pipe 111 is in the range of 15° to 45°.

[0137] The angle between the central axis of the mounting hole 14 and the central axis of the first pipe 110 or the second pipe 111 is in the range of 15° to 45°. This means that the angle can be any value within the above range, for example, the angle is 15°, 20°, 25°, 30°, 35°, 40° or 45°.

[0138] In the above technical solution, the angle between the central axis of the mounting hole 14 and the central axis of the first pipe 110 or the second pipe 111 is in the range of 15° to 45°. Under the premise that the probe 21 extends into the flow channel 13 to a sufficient depth, the length of the probe 21 extending into the flow channel 13 is increased, thereby increasing the contact area between the probe 21 and the heat exchange medium.

[0139] See Figure 7 In some embodiments, the probe 21 does not protrude from the inner peripheral wall of the second conduit 111.

[0140] In the above technical solution, the probe 21 does not protrude from the inner peripheral wall of the second pipe 111, thereby reducing the interference of the probe 21 on the heat exchange medium in the flow channel 13.

[0141] See Figures 7-10 In some embodiments, an mounting protrusion 12 is formed on the outer peripheral wall of the connection between the first pipe 110 and the second pipe 111. The mounting hole 14 extends from the inner peripheral wall of the first pipe 110 to the mounting protrusion 12. At least a portion of the sensor body 22 is located inside the mounting protrusion 12. The sensor body 22 is provided with a buckle 223, and the mounting protrusion 12 is provided with a locking hole 121. The buckle 223 is engaged in the locking hole 121.

[0142] For example, the latch 223 includes a connecting section 2230 and a claw 2231 connected to the end of the connecting section 2230. The connecting section 2230 is connected to the limiting end 220 of the sensor body 22. The sensor body 22 also includes a plug-in section 221, which is connected to the axial direction of the limiting end 220. The cross-sectional area of ​​the plug-in section 221 is smaller than the cross-sectional area of ​​the limiting end 220. The limiting end 220 has a second limiting surface 2202 on the side facing the plug-in section 221. When the sensor body 22 is installed on the mounting protrusion 12, the plug-in section 221 is plugged into the mounting protrusion 12, and the second limiting surface 2202 abuts against the first limiting surface 122 at the end of the mounting protrusion 12. The second limiting surface 2202 can control the length of the sensor body 22 installed into the pipeline 11.

[0143] For example, the outer periphery of the plug section 221 is provided with a sealing groove 222, which is used to install a sealing ring. The end of the plug section 221 forms an end face 2210, which is coplanar with the second pipe wall 1110 of the second pipe 111.

[0144] For example, there are two clips 223, which are arranged circumferentially along the insertion section 221.

[0145] The locking hole 121 may include a relief groove 1211 and a latching groove 1212 communicating with the relief groove 1211. The claw 2231 is located in the latching groove 1212 to achieve circumferential positioning. The connecting section 2230 is located in the relief groove 1211, so that the connecting section 2230 does not protrude from the outer surface of the mounting ring 12, reducing the probability of damage to the connecting section 2230.

[0146] In the above technical solution, the buckle 223 is inserted into the card hole 121, so that the sensor body 22 and the mounting protrusion 12 are circumferentially positioned.

[0147] See Figure 9 as well as Figure 10 In some embodiments, the mounting ring 12 is provided with a foolproof protrusion 15, and the sensor body 22 is provided with a foolproof groove 2201. The foolproof protrusion 15 is accommodated in the foolproof groove 2201, and the foolproof protrusion 15 and the card hole 121 are spaced apart along the circumference of the mounting ring 12.

[0148] In the above technical solution, the anti-mistake protrusion 15 is accommodated in the anti-mistake groove 2201, reducing the probability of the sensor body 22 being installed backwards.

[0149] See Figure 2 In some embodiments, the first conduit 110 and the second conduit 111 are integrally formed.

[0150] In the above technical solution, the first pipeline 110 and the second pipeline 111 are integrally formed, which increases the overall structural strength of the pipeline 11 and reduces the manufacturing difficulty of the pipeline 11.

[0151] See Figure 12 Secondly, the present invention provides an electrical device 1000, including a battery device 100 according to an embodiment of the first aspect of the present invention.

[0152] The electrical device 1000 can be a vehicle, and the battery device 100 can be installed at the bottom of the vehicle body 200.

[0153] In the above technical solution, the electrical device 1000 is connected to the flow channel 13 through the mounting hole 14 of the battery device 100 according to the first aspect embodiment of the present invention. The temperature sensor 20 is installed in the mounting hole 14, and at least part of the probe 21 is located in the flow channel 13 and exposed to the flow channel 13, so that the probe 21 can directly contact the heat exchange medium in the flow channel 13 and the collected temperature is more accurate. The periphery of the pipe 11 only needs to be provided with the mounting hole 14, and there is no need to provide a structure protruding into the flow channel 13, which simplifies the structure of the pipe 11 and reduces the manufacturing difficulty of the pipe 11.

[0154] The following reference Figures 1-11 A battery device 100 according to some embodiments of the present invention is described.

[0155] Figures 1-5 In the first embodiment of this application, the battery device 100 includes a housing 50, at least one battery cell assembly 60, and a thermal management component 10. The battery cell assembly 60 is disposed within the housing 50. At least a portion of the thermal management component 10 is located within the housing 50 and is used to regulate the temperature of the battery cell assembly 60. The thermal management component 10 includes a pipe 11 and a temperature sensor 20. The interior of the pipe 11 forms a flow channel 13 for the flow of a heat exchange medium. A mounting hole 14 is provided on the periphery of the pipe 11, and the mounting hole 14 communicates with the flow channel 13. The temperature sensor 20 is mounted in the mounting hole 14 and includes a sensor body 22 and a probe 21 connected to the sensor body 22. At least a portion of the probe 21 is located within and exposed to the flow channel 13. The probe 21 is used to detect the temperature of the heat exchange medium within the flow channel 13.

[0156] The housing 50 may include a first housing 51 and a second housing 52, which are fastened together to form a sealed space, within which the battery cell assembly 60 is located. The pipeline 11 may be installed inside or outside the housing 50.

[0157] The thermal management assembly 10 also includes a seal 30, which is located between the outer wall of the temperature sensor 20 and the wall 143 of the mounting hole 14. There is only one seal 30, which can be a gasket. The seal 30 includes a first sealing section 31 and a second sealing section 32. The first sealing section 31 is located between the probe 21 and the mounting hole 14, and the second sealing section 32 is located between the probe 21 and the inner wall of the mounting ring 12. A potting compound 40 is filled between the inner wall of the mounting ring 12 and the outer wall of the sensor body 22, filling the gap between the second sealing section 32 and the mounting ring 12.

[0158] The space between the outer wall of the temperature sensor 20 and the hole wall 143 of the mounting hole 14 is filled with potting compound 40.

[0159] A mounting protrusion 12 is formed on the outer peripheral wall of the pipe 11, and a mounting hole 14 extends from the inner peripheral wall of the pipe 11 to the mounting protrusion 12. The temperature sensor 20 is connected to the mounting protrusion 12 by potting adhesive.

[0160] The pipeline 11 includes a first pipeline 110 and a second pipeline 111 connected along the extension direction of the pipeline 11. A flow channel 13 formed in the first pipeline 110 is a first flow channel 131, and a flow channel 13 formed in the second pipeline 111 is a second flow channel 132. The cross-sectional area of ​​the first flow channel 131 is larger than the cross-sectional area of ​​the second flow channel 132. The first pipeline 110 and the second pipeline 111 are connected by a step portion 112. The first pipeline 110 and the second pipeline 111 are integrally formed.

[0161] Mounting hole 14 is provided on the periphery of the first pipe 110. Mounting hole 14 is located at the end of the first pipe 110 near the second pipe 111. The angle between the central axis of mounting hole 14 and the central axis of the first pipe 110 is in the range of 80° to 100°.

[0162] A mounting protrusion 12 is formed on the outer peripheral wall of the first conduit 110, and a mounting hole 14 extends from the inner peripheral wall of the first conduit 110 to the mounting protrusion 12. At least a portion of the sensor body 22 is located inside the mounting protrusion 12.

[0163] Figures 6-10 This is a second embodiment of the present application. In this embodiment, the structure of the thermal management component 10 is substantially the same as that of the first embodiment, except that: the sealing elements 30 are multiple units spaced apart along the central axis of the mounting hole 14, and the sealing elements 30 are sealing rings. The temperature sensor 20 is detachably connected to the pipeline 11. The probe 21 includes multiple thermistors 210, at least some of which are spaced apart along the axial direction of the mounting hole 14. The temperature sensor 20 is snap-fitted to the mounting protrusion ring 12.

[0164] The flow channel 13 within the stepped portion 112 is a transition flow channel 133, which connects the first flow channel 131 and the second flow channel 132. The cross-sectional area of ​​the transition flow channel 133 gradually decreases in the direction from the first pipe 110 to the second pipe 111. The mounting hole 14 is provided in the stepped portion 112.

[0165] The step portion 112 includes a first step surface 1120 facing into the flow channel 13. The first step surface 1120 extends obliquely away from the central axis of the first pipe 110 in the direction from the second pipe 111 to the first pipe 110. The central axis of the mounting hole 14 is consistent with the oblique direction of the first step surface 1120. The probe 21 is in contact with the first step surface 1120.

[0166] The angle between the central axis of the mounting hole 14 and the central axis of the first pipe 110 or the second pipe 111 is in the range of 15° to 45°. The probe 21 does not protrude from the inner peripheral wall of the second pipe 111.

[0167] The sensor body 22 is provided with a buckle 223, and the mounting ring 12 is provided with a locking hole 121, into which the buckle 223 engages. The buckle 223 includes a connecting section 2230 and a claw 2231 connected to the end of the connecting section 2230. The connecting section 2230 is connected to the limiting end 220 of the sensor body 22. The sensor body 22 also includes a plug-in section 221, which is connected to the axial direction of the limiting end 220, and the cross-sectional area of ​​the plug-in section 221 is smaller than that of the limiting end 220. The limiting end 220 has a second limiting surface 2202 on the side facing the plug-in section 221. When the sensor body 22 is installed on the mounting ring 12, the plug-in section 221 is plugged into the mounting ring 12, and the second limiting surface 2202 abuts against the end of the mounting ring 12. The second limiting surface 2202 can control the length of the sensor body 22 installed into the pipeline 11. The locking hole 121 may include a relief groove 1211 and a latching groove 1212 communicating with the relief groove 1211. The claw 2231 is located in the latching groove 1212 to achieve circumferential positioning. The connecting section 2230 is located in the relief groove 1211, so that the connecting section 2230 does not protrude from the outer surface of the mounting ring 12, reducing the probability of damage to the connecting section 2230.

[0168] The mounting ring 12 is provided with a foolproof protrusion 15, and the sensor body 22 is provided with a foolproof groove 2201. The foolproof protrusion 15 is accommodated in the foolproof groove 2201, and the foolproof protrusion 15 and the locking hole 121 are spaced apart along the circumference of the mounting ring 12.

[0169] Figure 11 This is the third embodiment of the present application. In this embodiment, the structure of the thermal management component 10 is substantially the same as that of the second embodiment, except that the temperature sensor 20 and the mounting ring 12 are threaded together. The outer peripheral wall of the sensor body 22 of the temperature sensor 20 is provided with an external thread 224, and the inner wall of the mounting ring 12 is provided with an internal thread 123. The external thread 224 and the internal thread 123 cooperate to make the temperature sensor 20 and the mounting ring 12 threaded together.

[0170] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0171] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery device, characterized in that, include: Box; At least one battery cell assembly is disposed within the housing; A thermal management component, at least a portion of which is located within the housing and is used to regulate the temperature of the individual battery cells, the thermal management component including piping and a temperature sensor. The interior of the pipeline forms a flow channel for the flow of heat exchange medium, and the periphery of the pipeline is provided with mounting holes that communicate with the flow channel. The temperature sensor is mounted in the mounting hole and includes a sensor body and a probe connected to the sensor body. At least a portion of the probe is located within and exposed to the flow channel. The probe is used to detect the temperature of the heat exchange medium within the flow channel.

2. The battery device according to claim 1, characterized in that, The thermal management assembly also includes a seal located between the outer wall of the temperature sensor and the inner wall of the mounting hole.

3. The battery device according to claim 2, characterized in that, The seal may be one or multiple seals spaced apart along the central axis of the mounting hole.

4. The battery device according to claim 1, characterized in that, The space between the outer wall of the temperature sensor and the inner wall of the mounting hole is filled with potting compound.

5. The battery device according to claim 1, characterized in that, The temperature sensor can be detachably connected to the pipeline or connected by applying adhesive.

6. The battery device according to claim 1, characterized in that, The probe includes a plurality of thermistors, at least some of which are spaced apart along the axial direction of the mounting hole.

7. The battery device according to claim 1, characterized in that, The outer peripheral wall of the pipeline has a mounting protrusion, and the mounting hole extends from the inner peripheral wall of the pipeline to the mounting protrusion.

8. The battery device according to claim 7, characterized in that, The temperature sensor is connected to the mounting ring by a thread, a snap-fit, or a glue-filled connection.

9. The battery device according to claim 1, characterized in that, The pipeline includes a first pipeline and a second pipeline connected along the extension direction of the pipeline. The flow channel formed in the first pipeline is the first flow channel, and the flow channel formed in the second pipeline is the second flow channel. The cross-sectional area of ​​the first flow channel is larger than the cross-sectional area of ​​the second flow channel. The first pipeline and the second pipeline are connected by a stepped portion.

10. The battery device according to claim 9, characterized in that, The mounting hole is located on the periphery of the first pipeline.

11. The battery device according to claim 10, characterized in that, The mounting hole is located at one end of the first pipeline closer to the second pipeline; and / or, the angle between the central axis of the mounting hole and the central axis of the first pipeline is in the range of 80° to 100°.

12. The battery device according to claim 10, characterized in that, The outer peripheral wall of the first pipeline has a mounting protrusion, the mounting hole extends from the inner peripheral wall of the first pipeline to the mounting protrusion, and at least a portion of the sensor body is located within the mounting protrusion.

13. The battery device according to claim 12, characterized in that, The inner wall of the mounting ring and the outer wall of the sensor body are filled with potting compound.

14. The battery device according to claim 12, characterized in that, The thermal management assembly further includes a seal, which comprises a first sealing section and a second sealing section. The first sealing section is located between the probe and the mounting hole, and the second sealing section is located between the probe and the inner wall of the mounting ring.

15. The battery device according to claim 14, characterized in that, The inner wall of the mounting protrusion and the outer wall of the sensor body are filled with potting compound, which fills the gap between the second sealing section and the mounting protrusion.

16. The battery device according to claim 9, characterized in that, The flow channel within the stepped section is a transition flow channel, which connects the first flow channel and the second flow channel. The cross-sectional area of ​​the transition flow channel gradually decreases in the direction from the first pipe to the second pipe.

17. The battery device according to claim 9, characterized in that, The mounting hole is located on the stepped portion.

18. The battery device according to claim 17, characterized in that, The stepped portion includes a first stepped surface facing into the flow channel. The first stepped surface extends obliquely away from the central axis of the first pipeline in the direction from the second pipeline to the first pipeline. The central axis of the mounting hole is consistent with the oblique direction of the first stepped surface, and the probe is in contact with the first stepped surface.

19. The battery device according to claim 18, characterized in that, The angle between the central axis of the mounting hole and the central axis of the first or second pipeline is in the range of 15° to 45°.

20. The battery device according to claim 17, characterized in that, The probe does not protrude from the inner circumferential wall of the second pipeline.

21. The battery device according to claim 17, characterized in that, An mounting protrusion is formed on the outer peripheral wall of the connection between the first pipeline and the second pipeline. The mounting hole extends from the inner peripheral wall of the first pipeline to the mounting protrusion. At least a portion of the sensor body is located inside the mounting protrusion. The sensor body is provided with a buckle, and the mounting protrusion is provided with a locking hole. The buckle is engaged in the locking hole.

22. The battery device according to claim 21, characterized in that, The mounting ring has a foolproof protrusion, and the sensor body has a foolproof groove. The foolproof protrusion is accommodated in the foolproof groove, and the foolproof protrusion and the card hole are spaced apart along the circumference of the mounting ring.

23. The battery device according to claim 9, characterized in that, The first pipeline and the second pipeline are integrally formed.

24. An electrical device, characterized in that: Includes the battery device according to any one of claims 1-23.

Images