Electric device

Abstract

The invention discloses a power utilization device. The power utilization device comprises a main body part, a main battery pack, a standby battery pack, a battery separation device and a control device, a battery containing cavity is formed in the main body part, and a battery separation opening is formed in the battery containing cavity in the gravity direction; the main battery pack is arranged in the battery accommodating cavity and can provide driving force for the electric device; the standby battery pack can provide driving force for the electric device; the battery separating device is connected with the main body part, the battery separating device comprises a battery bearing body, and the main battery pack is borne on the battery bearing body; the control device responds to the first control signal to control the battery bearing body to move to be far away from the battery separation opening so as to enable the main battery pack to exit from the battery accommodating cavity through the battery separation opening, and the control device responds to the battery separation signal to control the standby battery pack to provide driving force for the electric device. The separation device can separate the main battery pack from the main body part, and then the standby battery pack provides driving force for the electric device, and the electric device is far away from the main battery pack.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to an electrical device. Background Art

[0002] With the continuous development of modern life, vehicles have become an indispensable means of travel in people's daily life. New energy vehicles are favored by people because of their energy saving, environmental protection, and economical affordability. The battery pack is one of the important components of electric vehicles, which is responsible for the driving force supply of the vehicle.

[0003] However, in recent years, there have been incidents of spontaneous combustion of electric vehicle battery packs, which has aroused people's attention to the safety of vehicle battery packs. When a battery pack has thermal runaway, it is very easy to cause a fire or even an explosion, which poses a threat to the life and property safety of drivers and passengers. Summary of the invention

[0004] The main purpose of this application is to provide an electrical device to solve the above-mentioned technical problems existing in the prior art.

[0005] To solve the above problems, the present application provides an electrical device, which includes a main body, a main battery pack, a backup battery pack, a battery detachment device, and a control device. The main body is formed with a battery accommodating cavity, and the battery accommodating cavity is provided with a battery detachment port in the direction of gravity; the main battery pack is arranged in the battery accommodating cavity, the main battery pack and the battery detachment port correspond to each other, and the main battery pack can provide driving force for the electrical device; the backup battery pack is arranged in the main body, and the backup battery pack can provide driving force for the electrical device, and the priority of the main battery pack in providing driving force for the electrical device is higher than the priority of the backup battery pack in providing driving force for the electrical device; the battery detachment device is connected to the main body, and the battery detachment device includes a battery carrier, the battery carrier is located at the battery detachment port, and the main battery pack is carried on the battery carrier; the control device controls the battery carrier to move away from the battery detachment port in response to a first control signal so that the main battery pack exits the battery accommodating cavity through the battery detachment port, and the control device controls the backup battery pack to provide driving force for the electrical device in response to the battery detachment signal.

[0006] Preferably, the electrical device includes a contact point, which is connected to the main body, and the main battery pack includes a disconnect switch, which is connected to the contact point, and the battery disconnect signal is generated after the disconnect switch and the contact point are separated.

[0007] Preferably, the electrical device includes a positioning pin, the positioning pin is connected to the main body, the contact point is connected to the side of the positioning pin away from the main body, the main battery pack is provided with a positioning hole, the disengagement switch is at least partially located in the positioning hole, and the positioning pin is inserted in the positioning hole to connect the disengagement switch and the contact point.

[0008] Preferably, the battery detachment device also includes a first motor, a support pin screw and a support pin fixing piece, the support pin screw is respectively connected to the first motor and the battery carrier, the support pin fixing piece is fixed to the main body, the battery carrier is inserted through the support pin fixing piece, and the first motor is used to drive the battery carrier to move away from the battery detachment port through the support pin screw.

[0009] Preferably, the battery detachment device includes a rolling member, which is arranged on the battery carrier and is used to support one side of the main battery pack. The main battery pack is at least partially supported by the rolling member, and the rolling member can rotate when the battery carrier moves away from the battery detachment port.

[0010] Preferably, the battery disengagement device includes a locking member, a second motor and a disengagement member, the locking member is used to fix the main battery pack and the main body, the second motor is connected to the disengagement member, and the disengagement member is sleeved on the locking member, and the control device controls the second motor in response to a second control signal to drive the disengagement member to drive the locking member to rotate, so as to release the state in which the locking member fixes the main battery pack and the main body, and generates the first control signal when the locking member is released from the state in which the main battery pack and the main body are fixed.

[0011] Preferably, the main battery pack includes a main battery fixing structure, the locking member is used to fix the main battery pack and the main body through the main battery fixing structure, the second motor and the main battery fixing structure are multiple in number, and the second motor is arranged on the main body corresponding to the two opposite sides of the battery accommodating cavity so that multiple second motors correspond to multiple main battery fixing structures.

[0012] Preferably, the control device also includes a main power management system, which is used to control the main battery pack to provide driving force for the power-consuming device. The control device responds to the second control signal to control the main power management system to stop working and detect whether the vehicle signal is normal.

[0013] Preferably, there are a plurality of battery carriers, which are arranged at intervals around the circumference of the battery detachment port, and the main battery pack is simultaneously carried on the battery carriers.

[0014] Preferably, the control device also includes a backup power management system, which is used to control the backup battery pack to provide driving force for the power-consuming device, and the control device responds to the battery disconnection signal to control the operation of the backup power management system.

[0015] Compared with the prior art, the electric device of the present application includes a main body, a main battery pack, a backup battery pack, a battery detachment device, and a control device. The main body is formed with a battery accommodating cavity, and the battery detachment port is provided in the battery accommodating cavity in the direction of gravity; the main battery pack is arranged in the battery accommodating cavity, the main battery pack and the battery detachment port correspond to each other, and the main battery pack can provide driving force for the electric device; the backup battery pack is arranged in the main body, and the backup battery pack can provide driving force for the electric device, and the priority of the main battery pack in providing driving force for the electric device is higher than the priority of the backup battery pack in providing driving force for the electric device; the battery detachment device is connected to the main body, and the battery detachment device includes a battery carrier, the battery carrier is located at the battery detachment port, and the main battery pack is carried on the battery carrier; the control device controls the battery carrier to move away from the battery detachment port in response to a first control signal so that the main battery pack exits the battery accommodating cavity through the battery detachment port, and the control device controls the backup battery pack to provide driving force for the electric device in response to the battery detachment signal. Through the above-mentioned implementation mode, the main battery pack is arranged in the battery accommodating cavity formed under the main body, and the battery carrier is arranged at the battery detachment port to lift the main battery pack. When the control device receives the first control signal, it controls the battery carrier to move away from the battery detachment port, so that the main battery pack can exit the battery accommodating cavity from the battery detachment port under the action of its own gravity, thereby realizing the separation of the main battery pack and the main body. At the same time, the control device receives the battery detachment signal to control the backup battery pack to power the electrical device, so that the electrical device is away from the detached main battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structural framework of an embodiment of the electric device provided by the present application;

[0018] Figure 2 This is a schematic diagram of a structural framework of an embodiment of an electric device provided by the present application from another perspective;

[0019] Figure 3 It is a schematic diagram of the structural framework of the first embodiment of the battery detachment device provided by the present application;

[0020] Figure 4 This is a schematic diagram of the structural framework of the first embodiment of the battery detachment device provided by the present application from another perspective;

[0021] Figure 5 It is a schematic diagram of the structural framework of the second embodiment of the battery detachment device provided by the present application;

[0022] Figure 6 It is a schematic diagram of the structural framework of the third embodiment of the battery detachment device provided in the present application.

[0023] Figure numbers: electrical device 1; main body 10; battery accommodating cavity 110; battery detachment port 120; main battery pack 20; positioning hole 210; main battery fixing structure 220; battery cooling device interface 230; spare battery pack 30; battery detachment device 40; battery carrier 401; first motor 402; support pin screw rod 403; support pin fixing member 404; rolling member 405; detachment switch 406; contact point 407; positioning pin 408; locking member 409; second motor 410; detachment member 411; control device 50. DETAILED DESCRIPTION

[0024] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0026] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0027] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0029] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0030] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0031] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill 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.

[0032] In recent years, there have been incidents of spontaneous combustion of electric vehicle battery packs, which has aroused people's attention to the safety of vehicle battery packs. When a battery pack has thermal runaway, it is very easy to cause a fire or even an explosion, which poses a threat to the life and property safety of drivers and passengers.

[0033] In order to solve the technical problems existing in the related art, the present application provides an electric device, see Figure 1 , Figure 1 It is a schematic diagram of the structural framework of an embodiment of an electrical device provided in the present application.

[0034] The electric device 1 includes a main body 10, a main battery pack 20, a backup battery pack 30, a battery detachment device 40, and a control device 50. The main body 10 is formed with a battery accommodating chamber 110, and the battery accommodating chamber 110 is provided with a battery detachment port 120 in the direction of gravity; the main battery pack 20 is arranged in the battery accommodating chamber 110, the main battery pack 20 and the battery detachment port 120 correspond, and the main battery pack 20 can provide driving force for the electric device 1; the backup battery pack 30 is arranged in the main body 10, and the backup battery pack 30 can provide driving force for the electric device 1, and the main battery pack 20 has a high priority in providing driving force for the electric device 1 The priority is given to the backup battery pack 30 to provide driving force for the electrical device 1; the battery detachment device 40 is connected to the main body 10, and the battery detachment device 40 includes a battery carrier 401, the battery carrier 401 is located at the battery detachment port 120, and the main battery pack 20 is carried on the battery carrier 401; the control device 50 controls the battery carrier 401 to move away from the battery detachment port 120 in response to the first control signal so that the main battery pack 20 exits the battery accommodating cavity 110 through the battery detachment port 120, and the control device 50 controls the backup battery pack 30 to provide driving force for the electrical device 1 in response to the battery detachment signal.

[0035] The electric device 1 may specifically be a vehicle, the main body 10 includes components such as a vehicle chassis, and the main battery pack 20 is arranged in a battery accommodating cavity 110 formed below the main body 10, which is conducive to the separation of the main battery pack 20 and the main body 10, and the battery carrier 401 arranged at the battery detachment port 120 can lift the main battery pack 20. When the electric device 1 is working normally, the main battery pack 20 provides driving force for it, and the backup battery pack 30 does not provide driving force for it. The control device 50 includes a vehicle controller, a battery management system, a motor controller, a DC-DC converter, etc., and can control the working states of components such as the main battery pack 20, the backup battery pack 30, and the battery detachment device 40. The battery detachment device 40 includes a battery carrier 401, which is used to separate the main battery pack 20 from the main body 10. When the main battery pack 20 has an abnormal situation such as thermal runaway, a first control signal is generated and fed back to the control device 50 to control the main battery pack 20 to stop providing driving force for the power-consuming device 1. At the same time, the control device 50 controls the battery detachment device 40 to move the battery carrier 401 away from the battery detachment port 120, so that the main battery pack 20 is no longer lifted, and the main battery pack 20 exits the battery accommodating cavity 110 along the battery detachment port 120 by gravity, and then the main battery pack 20 is separated from the main body 10. After the main battery pack 20 is separated from the main body 10, a battery detachment signal is generated and fed back to the control device 50 to control the backup battery pack 30 to provide driving force for the power-consuming device 1, so that the power-consuming device 1 is away from the detached main battery pack 20. The backup battery pack 30 may be a lithium iron battery, and the power can support the electric device 1 to travel for at least 50 meters. When the backup battery pack 30 is insufficient, it can be supplemented by the main battery pack 20 or the external power supply of the electric device 1. The main battery pack 20 is also provided with a battery cooling device interface 230, and the main body 10 is also provided with a corresponding main body cooling device interface. The cooling device is used to control the temperature of the main battery pack 20. The battery cooling device interface 230 and the main body cooling device interface are connected by plugging. When the main battery pack 20 and the main body 10 are separated, the battery cooling device interface 230 and the main body cooling device interface can be separated accordingly, and the battery cooling device interface 230 and the main body cooling device interface are automatically closed.

[0036] See also Figure 2 and Figure 5 , Figure 2 This is a schematic diagram of the structural framework of an embodiment of the electric device provided by the present application from another perspective. Figure 5 It is a schematic diagram of the structural framework of the second embodiment of the battery detachment device provided in the present application.

[0037] In some embodiments, the electrical device 1 includes a contact point 407, which is connected to the main body 10, and the main battery pack 20 includes a disconnect switch 406, which is connected to the contact point 407. When the disconnect switch 406 and the contact point 407 are separated, a battery disconnect signal is generated.

[0038] The contact point 407 is used to generate an electrical signal. When the disconnect switch 406 and the contact point 407 are connected, an electrical signal is generated. When the disconnect switch 406 is disconnected from the contact point 407 as the main battery pack 20 and the main body 10 are separated, another different electrical signal, i.e., a battery disconnect signal, is generated. The battery disconnect signal is used to indicate that the main battery pack 20 has been disconnected from the main body 10, and then the control device 50 can control the backup battery pack 30 to provide driving force for the electrical device 1 according to the battery disconnect signal.

[0039] Preferably, the electrical device 1 includes a positioning pin 408, the positioning pin 408 is connected to the main body 10, the contact point 407 is connected to the side of the positioning pin 408 away from the main body 10, the main battery pack 20 is provided with a positioning hole 210, the disengagement switch 406 is at least partially located in the positioning hole 210, and the positioning pin 408 is inserted in the positioning hole 210 to connect the disengagement switch 406 and the contact point 407.

[0040] The positioning pin 408 is at least partially embedded in the positioning hole 210, one end of which is fixedly connected to the main body 10, and the other end of which is provided with a contact point 407 and located in the positioning hole 210. A disengagement switch 406 is provided on the main battery pack 20 corresponding to the contact point 407 below the main battery pack 20, and the disengagement switch 406 is partially located in the positioning hole 210 and in contact with the contact point 407. On the one hand, the positioning pin 408 can provide positioning for the main battery pack 20 when it is installed on the main body 10. On the other hand, when the main battery pack 20 is separated from the main body 10, the main battery pack 20 moves along the positioning pin 408 in a direction away from the main body 10 under the action of gravity, so as to avoid the main battery pack 20 being stuck in the battery accommodating cavity 110 due to uneven force, and ensure that the main battery pack 20 smoothly exits the battery accommodating cavity 110 to be separated from the main body 10. At the same time, the disengagement switch 406 is disconnected from the contact point 407 as the main battery pack 20 moves, thereby generating a battery disengagement signal.

[0041] See also Figure 3 and Figure 4 , Figure 3 is a schematic structural framework diagram of a first embodiment of a battery detachment device provided in the present application, Figure 4 This is a schematic diagram from another perspective of the structural framework of the first embodiment of the battery detachment device provided in the present application.

[0042] Preferably, the battery detachment device 40 also includes a first motor 402, a support pin screw 403 and a support pin fixing member 404, the support pin screw 403 is respectively connected to the first motor 402 and the battery carrier 401, the support pin fixing member 404 is fixed to the main body 10, and the battery carrier 401 is penetrated by the support pin fixing member 404, and the first motor 402 is used to drive the battery carrier 401 to move away from the battery detachment port 120 through the support pin screw 403.

[0043] The support pin fixing member 404 provides a support point for the first motor 402, the support pin screw rod 403 and the battery carrier 401, so that they are fixed to the main body 10, and the battery carrier 401 and the support pin screw rod 403 can be connected by threads. It can be understood that the rotation of the first motor 402 drives the support pin screw rod 403 to rotate, and the rotation of the support pin screw rod 403 drives the battery carrier 401 to rotate, so that the battery carrier 401 can move in the direction close to the first motor 402 to move away from the battery detachment port 120, so that the main battery pack 20 can fall off along the battery detachment port 120, and similarly, the first motor 402 moves in the opposite direction to move the battery carrier 401 in the direction away from the first motor 402 to the battery detachment port 120, so as to lift the main battery pack 20. Therefore, it can be understood that the first motor 402 can be set to rotate clockwise or counterclockwise to make the battery carrier 401 away from the battery detachment port 120 or move to the battery detachment port 120.

[0044] The first motor 402 can be an intelligent motor with a motor controller (ICU). The rotation speed and working time of the first motor 402 can be monitored by the internally arranged sensor. The number of rotations of the first motor 402 is calculated by the rotation speed and the working time. When the number of rotations is greater than a certain value, it is determined that the battery carrier 401 is away from the battery detachment port 120 or is located at the battery detachment port 120. The number of rotations of the first motor 402 required for the battery carrier 401 to be away from the battery detachment port 120 can be obtained through experiments, and a photoelectric sensor can be directly set to monitor the position of the battery carrier 401 to determine whether it is away from the battery detachment port 120. When the battery carrier 401 is not away from the battery detachment port 120, it will block the light beam emitted by the photoelectric sensor. When the battery carrier 401 is away from the battery detachment port 120, it will not block the light beam emitted by the photoelectric sensor. Of course, other methods can also be set to determine whether the battery carrier 401 is away from the battery detachment port 120.

[0045] The battery detachment device 40 also includes a rolling member 405, which is arranged on the battery carrier 401 and is used to support one side of the main battery pack 20. The main battery pack 20 is at least partially supported by the rolling member 405. The rolling member 405 can rotate when the battery carrier 401 moves away from the battery detachment port 120.

[0046] When the battery carrier 401 is located at the battery detachment port 120 and supports the main battery pack 20, at least part of the rolling element 405 is in contact with the main battery pack 20, so that when the battery carrier 401 moves away from the battery detachment port 120 and the main battery pack 20 moves relative to each other, the friction force is reduced by the rotation of the rolling element 405. The rolling element 405 can specifically be a structure such as a ball or roller.

[0047] See also Figure 2 and Figure 6 , Figure 2 This is a schematic diagram of the structural framework of an embodiment of the electric device provided by the present application from another perspective. Figure 6 It is a schematic diagram of the structural framework of the third embodiment of the battery detachment device provided in the present application.

[0048] In some embodiments, the battery detachment device 40 also includes a locking member 409, a second motor 410 and a detachment member 411, the locking member 409 is used to fix the main battery pack 20 and the main body 10, the second motor 410 and the detachment member 411 are connected, and the detachment member 411 is sleeved on the locking member 409, and the control device 50 controls the second motor 410 in response to the second control signal to drive the detachment member 411 to drive the locking member 409 to rotate, so as to release the state in which the locking member 409 fixes the main battery pack 20 and the main body 10, and generates a first control signal when the locking member 409 fixes the main battery pack 20 and the main body 10.

[0049] The locking member 409 may be a bolt, by which the main battery pack 20 and the main body 10 are fixed. The rotation of the second motor 410 may drive the disengagement member 411 to rotate, and the rotation of the disengagement member 411 may drive the locking member 409 to rotate. The disengagement member 411 may be a bolt sleeve, or other structures, as long as it can clamp the locking member 409 to rotate. When the main battery pack 20 has an abnormal situation such as thermal runaway, a second control signal is generated and fed back to the control device 50 to control the second motor 410 to drive the disengagement member 411, so that the locking member 409 is separated from the main battery pack 20, and then a first control signal is generated and fed back to the control device 50 to control the first motor 402 to work. Like the first motor 402, the second motor 410 may also be an intelligent motor with a motor controller. The second motor 410 has the same principle as the first motor 402, and can monitor whether the locking member 409 is separated from the main battery pack 20 through a sensor, which will not be repeated here.

[0050] The main battery pack 20 includes a main battery fixing structure 220, and the locking member 409 is used to fix the main battery pack 20 and the main body 10 through the main battery fixing structure 220. The number of second motors 410 and main battery fixing structures 220 is multiple, and the second motors 410 are arranged on the main body 10 corresponding to the two opposite sides of the battery accommodating cavity 110, so that multiple second motors 410 and multiple main battery fixing structures 220 correspond.

[0051] The locking member 409 can be threadedly connected to the main battery fixing structure 220 to fix the main battery pack 20 to the main body 10. Multiple main battery fixing structures 220 can be set on opposite sides of the main battery pack 20, and multiple second motors 410, disengagement members 411 and locking members 409 are set corresponding to the main battery fixing structures 220 to make the connection between the main battery pack 20 and the main body 10 more stable. Preferably, the working states of the multiple second motors 410 should be consistent, so that the multiple locking members 409 are synchronously separated from the main body 10 to make the main battery pack 20 more evenly stressed, and avoid abnormal situations such as the locking member 409 being stuck and the main battery pack 20 being stuck. The number of second motors 410 can be set to 8, or 10 or 12, etc., which is not limited here.

[0052] The control device 50 also includes a main power management system (BMS), which is used to control the main battery pack 20 to provide driving force for the power-consuming device 1. The control device 50 responds to the second control signal to control the main power management system to stop working and detect whether the vehicle signal is normal.

[0053] The control device 50 includes a vehicle control unit (VCU). When the main battery pack 20 has an abnormal situation such as thermal runaway, a second control signal is generated and fed back to the vehicle control unit. The vehicle control unit controls the main power management system to stop providing driving force for the power-consuming device 1. Specifically, the main power management system disconnects the main positive relay and the main negative relay set inside the power-consuming device 1, so that the main battery pack 20 stops providing driving force for the power-consuming device 1. It should be noted that the battery disconnection device 40 uses a small battery set inside the power-consuming device 1 for low-voltage power supply. The small battery can provide low-voltage power for the vehicle's glass, horn, etc. Therefore, when the main battery pack 20 stops providing driving force for the power-consuming device 1, the battery disconnection device 40 can operate normally. The vehicle signal includes the brake signal of the electrical device 1, the status signal of the first motor 402, the status signal of the second motor 410, and the status signals of the main positive relay and the main negative relay, etc., which are used to ensure that the separation device can operate normally to separate the main battery pack 20 and the main body 10, and to keep the electrical device 1 away from the detached main battery pack 20. If the vehicle signal is abnormal, a warning signal is fed back to the control device 50 to prompt the control device 50 to stay away from the electrical device 1.

[0054] See also Figure 2 , Figure 2 This is a schematic diagram from another perspective of the structural framework of an embodiment of the electrical device provided in the present application.

[0055] Preferably, there are multiple battery carriers 401, which are arranged at intervals around the battery detachment port 120, and the main battery pack 20 is simultaneously carried on the battery carriers 401. The number of battery carriers 401 can be 4, which can be arranged at the 4 corners of the battery detachment port 120, so that the main battery pack 20 can be carried more stably. The number of battery carriers 401 can also be 6, 8 or other numbers, and the number of first motors 402 corresponds to the number of battery carriers 401. The location of the battery carriers 401 can also be determined according to actual conditions, so that the main battery pack 20 is more evenly stressed and more stably carried.

[0056] The control device 50 also includes a backup power management system, which is used to control the backup battery pack 30 to provide driving force for the power-consuming device 1. The control device 50 responds to the battery detachment signal to control the operation of the backup power management system. When the main battery pack 20 is separated from the main body 10 by the battery detachment device 40 and a battery detachment signal is generated, the control device 50 controls the backup power management system to close the main positive relay and the main negative relay so that the backup battery pack 30 provides driving force for the power-consuming device 1. When the main battery pack 20 is not separated from the main body 10, the backup battery pack 30 does not provide driving force for the power-consuming device 1, so as to avoid the main battery pack 20 with thermal runaway affecting the operation of the backup battery pack 30. After the backup battery pack 30 provides driving force for the power-consuming device 1, the power-consuming device 1 is moved away from the detached main battery pack 20 by manual operation or automatic operation of the control device 50.

[0057] In summary, the working principle of the electric device 1 provided in the present application is as follows: when the main battery pack 20 has an abnormal situation such as thermal runaway, the electric device 1 controls the main battery pack 20 through the control device 50 to stop providing driving force for the electric device 1. At the same time, the control device 50 detects whether the vehicle signal is normal. If it is abnormal, a warning signal is fed back to warn to stay away from the electric device 1. If the vehicle signal is normal, the control device 50 controls the battery detachment device 40 to separate the main battery pack 20 from the main body 10 of the electric device 1. After the main battery pack 20 and the main body 10 are separated, the control device 50 responds to the battery detachment signal to control the backup battery pack 30 to provide driving force for the electric device 1, so that the electric device 1 is away from the detached main battery pack 20. It should be noted that the whole process can be completed in a very short time. Therefore, when the main battery pack 20 has a thermal runaway, the life safety of the driver and passengers of the electric device 1 is effectively protected and property losses are reduced by separating the main battery pack 20 from the electric device 1.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. An electrical device, characterized in that: The electrical device comprises: The main body is formed with a battery accommodating cavity, and the battery accommodating cavity is provided with a battery release port in the gravity direction; A main battery pack is disposed in the battery accommodating cavity, the main battery pack corresponds to the battery detachment port, and the main battery pack can provide driving force for the electrical device; a backup battery pack, disposed in the main body, the backup battery pack being capable of providing driving force for the electrical device, the priority of the main battery pack providing driving force for the electrical device being greater than the priority of the backup battery pack providing driving force for the electrical device; A battery detachment device connected to the main body, the battery detachment device comprising a battery carrier, the battery carrier is located at the battery detachment port, and the main battery pack is carried on the battery carrier; A control device, in response to a first control signal, controls the battery carrier to move away from the battery detachment port so that the main battery pack exits the battery accommodating cavity through the battery detachment port, and in response to a battery detachment signal, controls the backup battery pack to provide driving force for the electrical device.

2. The electrical device according to claim 1, characterized in that: The electrical device includes a contact point, which is connected to the main body. The main battery pack includes a disconnect switch, which is connected to the contact point. The battery disconnect signal is generated when the disconnect switch is separated from the contact point.

3. The electrical device according to claim 2, characterized in that: The electrical device includes a positioning pin, which is connected to the main body, and the contact point is connected to the side of the positioning pin away from the main body. The main battery pack is provided with a positioning hole, and the disengagement switch is at least partially located in the positioning hole. The positioning pin is inserted into the positioning hole to connect the disengagement switch and the contact point.

4. The electrical device according to claim 1, characterized in that: The battery detachment device also includes a first motor, a support pin screw and a support pin fixing piece, the support pin screw is respectively connected to the first motor and the battery carrier, the support pin fixing piece is fixed to the main body, the battery carrier is penetrated by the support pin fixing piece, and the first motor is used to drive the battery carrier to move away from the battery detachment port through the support pin screw.

5. The electrical device according to claim 1, characterized in that: The battery detachment device includes a rolling member, which is arranged on the battery carrier and is used to support one side of the main battery pack. The main battery pack is at least partially supported by the rolling member, and the rolling member can rotate when the battery carrier moves away from the battery detachment port.

6. The electrical device according to claim 1, characterized in that: The battery disengagement device includes a locking member, a second motor and a disengagement member, the locking member is used to fix the main battery pack and the main body, the second motor is connected to the disengagement member, and the disengagement member is sleeved on the locking member. The control device controls the second motor to drive the disengagement member to drive the locking member to rotate in response to a second control signal, so as to release the state in which the locking member fixes the main battery pack and the main body, and generates the first control signal when the locking member is released from the state in which the main battery pack and the main body are fixed.

7. The electrical device according to claim 6, characterized in that: The main battery pack includes a main battery fixing structure, and the locking member is used to fix the main battery pack and the main body through the main battery fixing structure. There are multiple second motors and multiple main battery fixing structures. The second motors are arranged on the main body corresponding to the two opposite sides of the battery accommodating cavity, so that multiple second motors correspond to multiple main battery fixing structures.

8. The electrical device according to claim 6, characterized in that: The control device also includes a main power management system, which is used to control the main battery pack to provide driving force for the power-consuming device. The control device responds to the second control signal to control the main power management system to stop working and detect whether the vehicle signal is normal.

9. The electrical device according to claim 1, characterized in that: There are multiple battery carriers, which are arranged at intervals around the battery detachment port, and the main battery pack is carried on the battery carriers at the same time.

10. The electrical device according to claim 1, characterized in that: The control device also includes a backup power management system, which is used to control the backup battery pack to provide driving force for the power-consuming device. The control device responds to the battery disconnection signal to control the operation of the backup power management system.

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