CN-121983719-A - Battery device and electric equipment

Abstract

The application discloses a battery device and electric equipment, the battery device comprises a heat exchange assembly, a female connector, a male connector and a sealing valve assembly. The female connector is internally provided with a fixed valve core. The male connector is connected with the heat exchange assembly and detachably connected with the female connector, and a second flow passage is formed in the male connector. The sealing valve assembly comprises a magnetic attraction piece fixed in the male connector and close to the port, and a magnetic valve core movably arranged in the second flow passage under the action of magnetic attraction. In the plug-in state, the end part of the female connector is inserted into the male connector, and the part of the fixed valve core stretches into the second flow channel to push the magnetic valve core to move into the second flow channel so as to separate from the magnetic attraction of the magnetic attraction piece, so that the first flow channel and the second flow channel in the female connector are communicated. In the pulled-out state, the magnetic valve core moves towards the magnetic attraction piece under the magnetic attraction effect of the magnetic attraction piece and is attracted to the port so as to seal the second flow channel. According to the technical scheme, the sealing performance can be improved in the process of plugging and unplugging the battery device and the medium supply source.

Inventors

• LAN FUQUAN
• LIN HAN
• Zhai xuan

Assignees

• 宁德时代新能源科技股份有限公司

Dates

Publication Date

20260505

Application Date

20260407

Claims (20)

1. 1. A battery device, characterized by comprising: The heat exchange assembly is internally provided with a heat exchange runner; the female connector is internally provided with a first flow passage, and a fixed valve core is arranged in the female connector; the male connector is connected with the heat exchange assembly and detachably connected with the female connector, and is internally provided with a second flow passage which is communicated with the heat exchange flow passage; The sealing valve assembly is arranged at the second flow passage port of the male connector and comprises a magnetic attraction piece which is fixed in the male connector and is close to the port, and a magnetic valve core which is movably arranged in the second flow passage under the action of magnetic attraction; the end part of the female connector is inserted into the male connector in an inserting state, the part of the fixed valve core stretches into the second flow passage to push the magnetic valve core to move into the second flow passage so as to separate from the magnetic attraction of the magnetic attraction piece, the first flow passage is communicated with the second flow passage, and in a pulling-out state, the magnetic valve core moves towards the magnetic attraction piece under the action of the magnetic attraction piece and is adsorbed at the port so as to seal the second flow passage.
2. 2. The battery device of claim 1, wherein a mounting ring is disposed within the port of the male connector, the magnetic attraction member is fixedly mounted to the mounting ring, The sealing valve assembly further comprises an annular sealing piece, wherein the annular sealing piece is arranged on the end face, facing the magnetic valve core, of the mounting ring and is used for being abutted with the magnetic valve core in the plugging state to seal the second flow channel.
3. 3. The battery device according to claim 1, wherein at least one axial communication groove through which a fluid passes is formed between a side wall of the magnetic valve element and an inner wall of the second flow passage; The second flow passage is internally fixedly provided with a limiting magnetic sheet, the magnetic valve core is arranged between the magnetic attraction piece and the limiting magnetic sheet, the magnetic polarities of the limiting magnetic sheet and the magnetic valve core are the same, and the magnetic repulsive force between the two magnetic sheets limits the moving stroke of the magnetic valve core to be within the length range of the axial communication groove.
4. 4. The battery device according to claim 3, wherein an annular limiting groove is formed in the inner wall of the second flow channel, the limiting magnetic sheet is fixedly embedded in the annular limiting groove, and at least one overflowing hole for communicating the second flow channel on two sides of the limiting magnetic sheet is formed in the limiting magnetic sheet.
5. 5. The battery device of claim 1, further comprising a telescoping screen disposed at the second flow path port of the male connector, wherein during mating of the male connector with the female connector, an end of the female connector is capable of pushing the telescoping screen to extend into the second flow path so that a portion of the telescoping screen enters the second flow path.
6. 6. The battery device of claim 1, further comprising an exhaust valve comprising: the valve body is fixedly arranged on the side wall or the top of the male connector, a cavity is formed in the valve body, a fluid inlet and an exhaust outlet which are communicated with the cavity are formed in the valve body, and the fluid inlet is communicated with a second flow passage of the male connector; The elastic floating ball is arranged in the cavity of the valve body, When gas exists in the cavity, the elastic floating ball floats upwards by means of buoyancy so as to open the exhaust outlet; when the cavity is filled with liquid, the elastic floating ball deforms under the pressure of the liquid to seal the exhaust outlet.
7. 7. The battery device according to claim 6, wherein the elastic floating ball is provided with a first sealing protrusion and a second sealing protrusion which are arranged at intervals along the axial direction thereof, and when the chamber is filled with liquid, the first sealing protrusion and the second sealing protrusion can respectively abut against the inner wall of the valve body to seal the exhaust outlet.
8. 8. The battery device according to any one of claims 1 to 7, wherein a movable seal seat is further provided in the female connector, and the seal movable seat is elastically abutted against the inner wall of the female connector through an elastic member and forms a sliding seal with the female connector; The fixed valve core is arranged in the first flow passage, one end of the fixed valve core extends and passes through the movable sealing seat, When the male connector is inserted into the female connector, the end part of the male connector pushes the movable sealing seat to compress the elastic piece, so that the end part of the fixed valve core pushes the magnetic valve core in the male connector to move into the second flow passage, and the first flow passage and the second flow passage are communicated through a gap between the fixed valve core and the movable sealing seat.
9. 9. The battery device of claim 8, wherein the resilient member is a spring.
10. 10. The battery device according to claim 8, wherein a repulsive magnet is provided on an end face of the fixed spool facing the male connector, and a magnetic polarity of the repulsive magnet is the same as a magnetic polarity of the magnetic spool in the male connector; in the process of inserting the male connector into the female connector, magnetic repulsive force is generated between the repulsive force magnet and the magnetic valve core, so that the magnetic valve core is pushed to a direction away from the magnetic attraction piece.
11. 11. The battery device according to claim 8, wherein the outer surface of the side wall of the movable seal seat is provided with at least one annular first seal groove along the circumferential direction thereof; The first sealing groove is internally provided with a first sealing ring, and the first sealing ring is abutted with the inner wall of the first runner of the female joint so as to realize sliding sealing between the movable sealing seat and the female joint.
12. 12. The battery device according to claim 8, wherein the movable sealing seat faces the end face of the fixed valve core, and an annular second sealing groove is formed around a through hole through which the fixed valve core passes; and a second sealing ring is arranged in the second sealing groove and is abutted with the side wall of the fixed valve core so as to realize the sealing between the movable sealing seat and the fixed valve core.
13. 13. The battery device according to claim 8, wherein a third sealing ring is further provided in the female connector, the third sealing ring is fixedly provided on a side of the movable sealing seat facing away from the elastic member, and in the plugging state, the third sealing ring is sleeved on an outer circumferential surface of the male connector so as to achieve sealing between the male connector and the female connector.
14. 14. The battery device according to any one of claims 1 to 7, wherein a first annular groove is formed in the female connector, an elastic buckle is embedded in the first annular groove, a second annular groove is correspondingly formed in the outer wall of the male connector, and in the plugging state, a part of the elastic buckle is clamped into the second annular groove under the action of elasticity so as to limit detachment between the male connector and the female connector.
15. 15. The battery device of claim 14, wherein an outer wall of the male connector forms a guiding slope on a side of the second annular groove near the port, and an inner wall of the elastic buckle slides along the guiding slope during the process of inserting the male connector into the female connector, so that the elastic buckle expands radially along the guiding slope, and in the plugging state, the elastic buckle rebounds and snaps into the second annular groove of the male connector.
16. 16. The battery device according to claim 14, wherein at least one radial positioning concave portion is formed on a side of the elastic buckle, which faces the male connector, and a radial positioning convex portion is correspondingly formed on an outer wall of the male connector, and when the elastic buckle is snapped into the second annular groove, the positioning convex portion can be embedded into the positioning concave portion, so as to limit relative rotation of the male connector and the female connector in a circumferential direction.
17. 17. The battery device of claim 14, further comprising a protective sleeve fixedly sleeved outside the elastic buckle to isolate the elastic buckle from an external environment.
18. 18. The battery device of claim 17, wherein the female connector is provided with at least one axially extending limit groove, and the inner wall of the protective sleeve is correspondingly provided with a limit protrusion, and the limit protrusion is embedded into the limit groove to limit circumferential rotation and axial displacement of the protective sleeve relative to the female connector.
19. 19. The battery device of claim 17, wherein a third annular groove is provided in an inner wall of the protective sleeve, and at least one end of the elastic buckle is embedded in the third annular groove to realize axial positioning of the protective sleeve to the elastic buckle.
20. 20. A powered device comprising a battery device according to any of claims 1-19 for providing electrical energy.

Description

Battery device and electric equipment Technical Field The application relates to the field of batteries, in particular to a battery device and electric equipment. Background Batteries are widely used in various electronic devices such as cellular phones, notebook computers, battery cars, electric bikes, electric airplanes, electric ships, electric tools, energy storage systems, and the like. At present, a heat exchange component is needed to exchange heat with a battery monomer in the battery operation process, the battery is heated under the low-temperature working condition, the battery is cooled under the high-temperature environment, the operation temperature of the battery is controlled in a proper range, and the stability and the efficiency of the battery operation are improved. The heat exchange assembly requires connection of a heat exchange medium, and typically a connection assembly is used to connect the battery to a medium supply. The conventional connection assembly has poor sealing performance and is easy to cause medium leakage, so that the structure needs to be improved. Disclosure of Invention In view of the above problems, the present application provides a battery device and an electric device, which can improve the sealing performance in the process of plugging and unplugging the battery device and a medium supply. In a first aspect, the present application provides a battery device comprising a heat exchange assembly, a female connector, a male connector, and a sealing valve assembly. The heat exchange assembly is internally provided with a heat exchange runner. The female connector is internally provided with a first flow passage, and a fixed valve core is arranged in the female connector. The male connector is connected with the heat exchange assembly and detachably connected with the female connector, and a second flow passage is formed in the male connector. The second flow passage is communicated with the heat exchange flow passage. The sealing valve component is arranged at the port of the second flow passage of the male connector and comprises a magnetic attraction piece which is fixed in the male connector and is close to the port, and a magnetic valve core which is movably arranged in the second flow passage under the action of magnetic attraction. In the plug-in state, the end part of the female connector is inserted into the male connector, and the part of the fixed valve core stretches into the second flow channel to push the magnetic valve core to move into the second flow channel so as to break away from the magnetic attraction of the magnetic attraction piece, so that the first flow channel is communicated with the second flow channel. In the pulled-out state, the magnetic valve core moves towards the magnetic attraction piece under the magnetic attraction of the magnetic attraction piece and is attracted to the port so as to seal the second flow passage. In the technical scheme of the embodiment of the application, the heat exchange component is arranged as a core carrier for heat exchange, and the heat exchange flow channel arranged in the heat exchange component forms a structural basis for cooling medium circulation, thereby providing physical guarantee for battery thermal management. The female connector is connected with an external medium supply source, and the male connector is fixed on a box body of the battery device. The two are detachably connected, so that the system can be conveniently connected and separated. The sealing valve assembly is integrated in the male connector, and passive driving is realized through the magnetic force cooperation of the magnetic attraction piece and the magnetic valve core, wherein the magnetic attraction piece enables the valve core to automatically reset and seal the flow channel in the pulled-out state, and the valve core is enabled to move inwards against the magnetic force by the mechanical pushing of the end part of the female connector in the inserting process, so that the flow channel is opened. The design realizes automatic switching of connection instant-on and disconnection instant-off, and avoids leakage of cooling medium and invasion of external pollutants. The cooperative working mechanism improves the sealing reliability and the plugging operation efficiency of the battery device in the process of being connected with a medium supply source, thereby enhancing the stability and the environmental adaptability of the battery system in the process of operation and maintenance. In some embodiments, a mounting ring is provided within the port of the male connector, and the magnetic attraction member is fixedly mounted to the mounting ring. The sealing valve assembly further comprises an annular sealing piece, wherein the annular sealing piece is arranged on the end face, facing the magnetic valve core, of the mounting ring and is used for being abutted with the magnetic valve core in the plug-in state to seal the second