High-voltage wire harness quick release device for electric automobile

Abstract

The invention relates to a quick release device for a high-voltage wire harness of an electric automobile, which comprises a wire harness connector, a battery pack and a power supply device, the wire harness connector comprises a plug and a socket, the plug is connected with the high-voltage wire harness, the socket is connected with a battery pack, the plug is provided with a conductive column correspondingly connected with the high-voltage wire harness, and the socket is provided with a jack in which the conductive column is inserted; and the locking and unlocking device comprises a lock catch for locking the plug on the socket, and the lock catch is connected with an unlocking mechanism for driving the lock catch to unlock the plug and a releasing mechanism for driving the plug to pop out of the socket after the lock catch unlocks the plug. According to the locking and unlocking device, the use convenience of the electric automobile can be improved, the operation difficulty of a user is reduced, and therefore the user experience and the market competitiveness are improved. The connection and disassembly process of the high-voltage wiring harness can be simplified, the maintenance efficiency is improved, and the maintenance cost is reduced. A safer and faster high-voltage wire harness connection and disassembly scheme can be provided, and the use efficiency and safety of charging facilities are improved.

Description

Technical Field

[0001] The present application relates to the technical field of electric vehicle wiring harness connectors, and in particular to a quick disconnect device for a high-voltage wiring harness of an electric vehicle. Background Art

[0002] With the rapid development of the electric vehicle market, the safety and convenience of electric vehicles have received widespread attention. Among them, the high-voltage wire harness connection technology of electric vehicles is a key technology, which directly affects the performance and safety of electric vehicles. However, the connection and disassembly process of the high-voltage wire harness is often complicated and requires professional technicians to operate, which to a certain extent limits the convenience of electric vehicles. Therefore, how to quickly and safely disconnect the high-voltage wire harness of electric vehicles has become an important research topic.

[0003] Solutions of the prior art: Existing electric vehicle high-voltage wiring harness disconnection devices usually adopt a mechanical structure design, and the disconnection process is triggered by a button, lever or other operating element. Then, the wiring harness is separated by releasing the locking mechanism or disconnecting the connector buckle. In addition, in order to ensure the safety of operation, these devices may also include some protective measures, such as locking devices, insulating materials or warning signs to prevent misoperation.

[0004] Problems with the existing technology: Although the existing high-voltage wiring harness disconnecting devices for electric vehicles have solved the problems of wiring harness connection and disassembly to a certain extent, there are still some problems and shortcomings. First, the existing disconnecting devices usually require manual operation, and the operation process is relatively cumbersome, which is not conducive to improving the convenience of electric vehicles. Secondly, the existing disconnecting devices may generate arcs during the unlocking process, which poses a certain threat to the safety of the operator. Finally, the existing disconnecting devices may have some deficiencies in design. For example, the wiring harness separation process after unlocking may not be fast or safe enough, which may affect the performance and safety of the electric vehicle. Summary of the invention

[0005] The embodiment of the present application provides a high-voltage wire harness quick disconnect device for an electric vehicle to solve the problem in the related art that the high-voltage wire harness disconnect device for an electric vehicle usually requires manual operation, the operation process is relatively cumbersome, and is not conducive to improving the convenience of use of the electric vehicle.

[0006] The embodiment of the present application provides a device for quickly disconnecting a high-voltage wire harness of an electric vehicle, comprising:

[0007] A wiring harness connector, the wiring harness connector comprising a plug connected to the high-voltage wiring harness and a socket connected to the battery pack, the plug being provided with a conductive post corresponding to the high-voltage wiring harness, and the socket being provided with a socket plugged with the conductive post;

[0008] The lock and unlocker comprises a lock catch for locking the plug on the socket, the lock catch is connected to an unlocking mechanism for driving it to unlock the plug, and a disengagement mechanism for driving the plug to pop out of the socket after the lock catch unlocks the socket.

[0009] In some embodiments: the lock comprises two symmetrically arranged lock tongues slidably connected in the socket through a guide pin, one end of the lock tongue is provided with a wedge-shaped unlocking block, and the other end of the lock tongue is provided with a lock hook that locks the plug;

[0010] The unlocking mechanism is located between the two symmetrically arranged locking tongues, and comprises a wedge block driving the two symmetrically arranged locking tongues to move in directions away from each other, and an electromagnet driving the wedge block to reciprocate.

[0011] In some embodiments: the plug is provided with a slot engaged with the lock hook, the lock hook is a triangular barb structure, the lock hook is provided with a guide slope for inserting the plug into the socket, and the guide pin is connected to a locking spring that drives the two symmetrically arranged lock tongues to move toward each other.

[0012] In some embodiments: a current sensor for detecting a current signal is provided on the socket, the current sensor is used to obtain a current signal from the high-voltage wiring harness or battery pack, the current sensor is connected to a controller, the controller is connected to the electromagnet, and when the current collected by the current sensor obtained by the controller is greater than a set threshold, the electromagnet is controlled to be energized.

[0013] In some embodiments: a lever is slidably connected to the socket to push the wedge block, one end of the lever is connected to the wedge block, and the other end of the lever is provided with an unlocking paddle slidably connected to the socket, and the unlocking paddle slides in the socket to drive the lever to pull the wedge block to unlock the lock tongue.

[0014] In some embodiments: the unlocking mechanism further comprises an unlocking switch connected to the controller, and the unlocking switch controls the energization of the electromagnet through a delay of the controller.

[0015] In some embodiments: the disengagement mechanism includes guide slide bars fixed on both sides of the plug, the socket is provided with a slider slidably connected to the guide slide bar, the guide slide bar is sleeved with a compression spring that drives the slider to slide on the guide slide bar in a direction away from the plug, one end of the compression spring is fixed on the plug, and the other end of the compression spring is a free end.

[0016] In some embodiments: the jack on the socket is retracted into the internal cavity of the socket, the internal cavity of the socket is slidably connected with an insulating arc-extinguishing plug that closes the plug interface of the socket, the insulating arc-extinguishing plug is provided with a avoidance hole that exposes the jack, and when the plug pops out of the socket, the insulating arc-extinguishing plug closes the plug interface of the socket.

[0017] In some embodiments: a push spring that drives the insulating arc-extinguishing plug to move toward the plug interface of the socket is provided in the internal cavity of the socket, as well as an inner insulating sleeve fixed on the socket, and an outer insulating sleeve fixed on the insulating arc-extinguishing plug, the inner insulating sleeve and the outer insulating sleeve are coaxially slidably connected to each other, and the push spring is located inside the inner insulating sleeve and the outer insulating sleeve.

[0018] In some embodiments: a plurality of arc-extinguishing plates spaced apart from each other are provided in the avoidance hole of the insulating arc-extinguishing plug.

[0019] The beneficial effects of the technical solution provided by this application include:

[0020] An embodiment of the present application provides a device for quickly disconnecting a high-voltage wiring harness of an electric vehicle. Since the device for quickly disconnecting a high-voltage wiring harness of an electric vehicle of the present application is provided with a wiring harness connector, the wiring harness connector includes a plug connected to the high-voltage wiring harness and a socket connected to a battery pack, the plug is provided with a conductive post corresponding to the connection with the high-voltage wiring harness, and the socket is provided with a jack engaged with the conductive post; a lock and unlocker, the lock and unlocker includes a lock for locking the plug on the socket, the lock is connected to an unlocking mechanism for driving it to unlock the plug, and a disengagement mechanism for driving the plug to pop out of the socket when the lock unlocks the plug.

[0021] Therefore, the high-voltage wiring harness quick-disconnect device for electric vehicles of the present application uses a lock unlocker to lock and automatically and quickly disconnect the plug and socket of the wiring harness connector, wherein the lock unlocker includes a lock buckle that locks the plug on the socket, the lock buckle is connected to an unlocking mechanism that drives it to unlock the plug, and a disengagement mechanism that drives the plug to pop out of the socket after the lock buckle unlocks the plug. The lock unlocker can improve the convenience of using electric vehicles and reduce the difficulty of operation for users, thereby improving user experience and market competitiveness. The connection and disassembly process of the high-voltage wiring harness can be simplified, the maintenance efficiency can be improved, and the maintenance cost can be reduced. A safer and faster high-voltage wiring harness connection and disassembly solution can be provided, and the use efficiency and safety of charging facilities can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of 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 creative work.

[0023] Figure 1 This is a schematic diagram of the structure of the wiring harness connector and the unlocking mechanism of an embodiment of the present application;

[0024] Figure 2 It is a schematic structural diagram of the wiring harness connector and the disengagement mechanism according to an embodiment of the present application.

[0025] Reference numerals:

[0026] 1. Plug; 2. Socket; 3. Conductive column; 4. Socket; 5. Lock tongue; 6. Guide pin; 7. Lock hook; 8. Wedge block; 9. Electromagnet; 10. Locking spring; 11. Slot; 12. Current sensor; 13. Wedge-shaped unlocking block; 14. Unlocking paddle; 15. Paddle; 16. Guide slide bar; 17. Slider; 18. Compression spring; 19. Insulating arc-extinguishing plug; 20. Push spring. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0028] The embodiment of the present application provides a device for quickly disconnecting a high-voltage wire harness of an electric vehicle, which can solve the problem in the related art that the high-voltage wire harness disconnecting device of an electric vehicle usually requires manual operation, the operation process is relatively cumbersome, and is not conducive to improving the convenience of using the electric vehicle.

[0029] See also Figure 1 and Figure 2 As shown, the embodiment of the present application provides a device for quickly disconnecting a high-voltage wire harness of an electric vehicle, comprising:

[0030] The wiring harness connector includes a plug 1 connected to the high-voltage wiring harness and a socket 2 connected to the battery pack. The plug 1 is provided with a conductive column 3 corresponding to the high-voltage wiring harness, and the socket 2 is provided with a socket 4 plugged with the conductive column 3. The plug 1 and the socket 2 are connected to each other by plugging and unplugging, so that the conductive column 3 and the socket 4 are electrically connected and disconnected. When the plug 1 and the socket 2 are plugged and connected to each other, the high voltage electricity of the battery pack is transmitted to each subsystem through the wiring harness connector and the high-voltage wiring harness.

[0031] The lock and unlock device includes a lock catch that locks the plug 1 on the socket 2, the lock catch is connected to an unlocking mechanism that drives it to unlock the plug 1, and a disengagement mechanism that drives the plug 1 to pop out of the socket 2 after the lock catch unlocks the plug 1. When the plug 1 and the socket 2 are plugged and connected to each other, the lock catch automatically mechanically locks the plug 1 and the socket 2, so that the plug 1 and the socket 2 are reliably connected to each other and avoid accidental disengagement. When the plug 1 needs to be unplugged, the lock catch is automatically unlocked by the unlocking mechanism, so that the plug 1 and the socket 2 can be disengaged from each other. The disengagement mechanism is used to drive the plug 1 to pop out of the socket 2 after the lock catch unlocks the plug 1, so as to realize the rapid and automatic disengagement of the plug 1 and the socket 2.

[0032] The high-voltage wiring harness quick-disconnect device for electric vehicles of the present application uses a lock unlocker to lock and automatically and quickly disconnect the plug 1 and the socket 2 of the wiring harness connector, wherein the lock unlocker includes a lock buckle that locks the plug 1 on the socket 2, the lock buckle is connected to an unlocking mechanism that drives it to unlock the plug 1, and a disengagement mechanism that drives the plug 1 to pop out of the socket after the lock buckle unlocks the plug 1. When the plug 1 and the socket 2 are plugged and connected to each other, the lock buckle automatically and mechanically locks the plug 1 and the socket 2, so that the plug 1 and the socket 2 are reliably connected to each other and prevent accidental disengagement.

[0033] When the plug 1 needs to be unplugged, the unlocking mechanism is used to automatically unlock the lock so that the plug 1 and the socket 2 can be disengaged from each other. The disengagement mechanism is used to drive the plug 1 to pop out of the socket 2 after the lock unlocks the plug 1, so as to realize the quick and automatic disengagement of the plug 1 and the socket 2. The lock unlocker can improve the convenience of using electric vehicles and reduce the difficulty of user operation, thereby improving user experience and market competitiveness. It can simplify the connection and disassembly process of high-voltage wire harnesses, improve maintenance efficiency and reduce maintenance costs. It can provide a safer and faster high-voltage wire harness connection and disassembly solution to improve the efficiency and safety of charging facilities.

[0034] In some alternative embodiments: See Figure 1 and Figure 2As shown, an embodiment of the present application provides a quick disconnect device for a high-voltage wiring harness of an electric vehicle. The lock for the quick disconnect device for a high-voltage wiring harness of an electric vehicle includes two symmetrically arranged locking tongues 5 slidably connected to a socket 2 through a guide pin 6. One end of the locking tongue 5 is provided with a wedge-shaped unlocking block 13, and the other end of the locking tongue 5 is provided with a locking hook 7 for locking the plug 1.

[0035] The unlocking mechanism is located between two symmetrically arranged locking tongues 5, and includes a wedge block 8 that drives the two symmetrically arranged locking tongues 5 to move away from each other, and an electromagnet 9 that drives the wedge block 8 to reciprocate. The cross section of the wedge block 8 is an isosceles trapezoidal structure, the wedge-shaped unlocking block 13 is a right-angled triangle structure, and the inclined surface of the wedge-shaped unlocking block 13 is slidably connected to the inclined surface of the wedge block 8.

[0036] When it is necessary to unplug the plug 1, the control electromagnet 9 is energized, and the telescopic rod of the electromagnet 9 is pushed out to drive the wedge block 8 to move in the direction close to the lock tongue 5. The inclined surface of the wedge block 8 cooperates with the inclined surface of the wedge-shaped unlocking block 13 to make the two lock tongues 5 move in the direction away from each other under the guidance of the guide pin 6 until the lock hook 7 at the other end of the lock tongue 5 unlocks the plug 1, so that the plug 1 and the socket 2 can be unlocked from each other.

[0037] In some alternative embodiments: See Figure 1 and Figure 2 As shown, the embodiment of the present application provides a device for quickly disconnecting a high-voltage wire harness of an electric vehicle, and a plug 1 for quickly disconnecting a high-voltage wire harness of an electric vehicle is provided with a slot 11 for engaging with a lock hook 7. The lock hook 7 is a triangular barb structure, and a guide slope is provided on the lock hook 7 for inserting the plug 1 into the socket 2, and a locking spring 10 is connected to the guide pin 6 for driving two symmetrically arranged lock tongues 5 to move toward each other.

[0038] In the embodiment of the present application, a slot 11 is provided on the plug 1 to engage with the lock hook 7. The slot 11 is used to engage with the slot 11 when the lock hook 7 of the lock tongue 5 is inserted into the plug 1. The lock hook 7 is a triangular barb structure, and the lock hook 7 of the triangular barb structure can be hung upside down on the slot 11 to achieve mutual locking after the plug 1 is inserted into the socket 2. The lock hook 7 is provided with a guide slope for inserting the plug 1 into the socket 2. The guide slope can smoothly insert the two lock tongues 5 into the socket 2, thereby improving the convenience of connecting the plug 1 and the socket 2.

[0039] The guide pin 6 is connected with a locking spring 10 that drives the two symmetrically arranged locking tongues 5 to move toward each other. The locking spring 10 is used to provide elastic support force for the locking tongue 5 when the locking hook 7 of the locking tongue 5 is inserted into the plug 1 and engaged with the card slot 11, so as to push the locking hook 7 of the locking tongue 5 to remain in the card slot 11. The locking spring 10 can prevent the locking hook 7 from accidentally disengaging from the card slot 11, thereby improving the connection reliability between the plug 1 and the socket 2.

[0040] In some alternative embodiments: See Figure 1 and Figure 2 As shown, the embodiment of the present application provides a device for quickly disconnecting a high-voltage wire harness of an electric vehicle, and a current sensor 12 for detecting a current signal is provided on the socket 2 of the device for quickly disconnecting a high-voltage wire harness of an electric vehicle, and the current sensor 12 is used to obtain a current signal of a high-voltage wire harness or a battery pack. The current sensor 12 is connected to a controller (not shown in the figure), and the controller is connected to the electromagnet 9. When the controller obtains that the current collected by the current sensor 12 is greater than a set threshold, the electromagnet 9 is energized.

[0041] In the embodiment of the present application, a current sensor 12 for detecting current signals is provided on the socket 2. The current sensor 12 can detect the current signal of the high-voltage wire harness or the battery pack. When the current value of the high-voltage wire harness or the battery pack exceeds a defined threshold, the controller can quickly send a control signal to the electromagnet 9, and the electromagnet 9 can trigger the lock tongue 5 to quickly unlock, and the disengagement mechanism allows the plug 1 to quickly disengage from the socket 2. The high-voltage wire harness can be disconnected from the battery pack more safely and quickly, thereby improving safety.

[0042] In some alternative embodiments: See Figure 1 and Figure 2 As shown, the embodiment of the present application provides a high-voltage wire harness quick-disconnection device for electric vehicles, and a lever 15 for pushing a wedge block 8 is slidably connected to the socket 2 of the high-voltage wire harness quick-disconnection device for electric vehicles. One end of the lever 15 is connected to the wedge block 8, and the other end of the lever 15 is provided with an unlocking paddle 14 slidably connected to the socket 2, and the unlocking paddle 14 slides on the socket 2 to drive the lever 15 to pull the wedge block 8 to unlock the lock tongue 5.

[0043] In the embodiment of the present application, a lever 15 for pushing the wedge block 8 is slidably connected to the socket 2, one end of the lever 15 is connected to the wedge block 8, and the other end of the lever 15 is provided with an unlocking paddle 14 slidably connected to the socket 2. When the electromagnet 9 is powered off or damaged, the unlocking paddle 14 is manually pushed to drive the lever 15 to move, and the lever 15 pushes the wedge block 8 to move in a direction close to the lock tongue 5, and the inclined surface of the wedge block 8 cooperates with the inclined surface of the wedge-shaped unlocking block 13, so that the two lock tongues 5 move in a direction away from each other under the guidance of the guide pin 6, until the lock hook 7 at the other end of the lock tongue 5 unlocks the plug 1, so that the plug 1 and the socket 2 can be unlocked from each other.

[0044] In some alternative embodiments: See Figure 1 and Figure 2As shown, the embodiment of the present application provides a device for quickly disconnecting a high-voltage wire harness of an electric vehicle. The unlocking mechanism of the device for quickly disconnecting a high-voltage wire harness of an electric vehicle also includes an unlocking switch (not shown) connected to a controller. The unlocking switch controls the electromagnet 9 to be energized by the controller with a delay. The unlocking switch is used to electrically control the electromagnet 9 to be energized so that the plug 1 and the socket 2 can be unlocked from each other. The controller delays 3s to control the electromagnet 9 to be energized to prevent accidental unlocking due to the unlocking switch not being touched.

[0045] In some alternative embodiments: See Figure 1 and Figure 2 As shown, the embodiment of the present application provides a quick disconnect device for a high-voltage wire harness of an electric vehicle, and the disconnect mechanism for the quick disconnect device for a high-voltage wire harness of an electric vehicle includes guide slide bars 16 fixed on both sides of the plug 1. A slider 17 slidably connected to the guide slide bar 16 is provided on the socket 2, and a compression spring 18 is sleeved on the guide slide bar 16 to drive the slider 17 to slide on the guide slide bar 16 in a direction away from the plug 1, one end of the compression spring 18 is fixed on the plug 1, and the other end of the compression spring 18 is a free end.

[0046] The disengagement mechanism of the embodiment of the present application is provided with guide slide bars 16 on both sides of the plug 1, and compression springs 18 are sleeved on the guide slide bars 16. A slider 17 slidably connected to the guide slide bars 16 is provided on the socket 2, and the slider 17 and the guide slide bars 16 are slidably connected to each other. When the locking tongue 5 enables the plug 1 and the socket 2 to be mutually unlocked, the compression spring 18 releases elastic potential energy to quickly push the plug 1 out of the socket 2. The guide slide bars 16 not only provide movement guidance for the plug 1 to be disengaged from the socket 2, but also provide bearing support and guidance for the compression spring 18.

[0047] In some alternative embodiments: See Figure 1 and Figure 2 As shown, the embodiment of the present application provides a device for quickly disconnecting a high-voltage wire harness of an electric vehicle, wherein the plug hole 4 on the socket 2 of the device for quickly disconnecting a high-voltage wire harness of an electric vehicle is retracted into the internal cavity of the socket 2. An insulating arc-extinguishing plug 19 that closes the plug interface of the socket 2 is slidably connected to the internal cavity of the socket 2, and an escape hole that exposes the plug hole 4 is opened on the insulating arc-extinguishing plug 19. When the plug 1 pops out of the socket 2, the insulating arc-extinguishing plug 19 closes the plug interface of the socket 2.

[0048] In the embodiment of the present application, an insulating arc-extinguishing plug 19 for closing the plug interface of the socket 2 is slidably connected to the internal cavity of the socket 2. The insulating arc-extinguishing plug 19 is not only used to close the plug interface of the socket 2 when the plug 1 pops out of the socket 2 to prevent the socket 4 of the socket 2 from being exposed and causing electric shock accidents, but also used to prevent the conductive column 3 and the socket 4 from detaching from each other and burning each other when the plug 1 pops out of the socket 2 to generate an arc.

[0049] In some alternative embodiments: See Figure 1 and Figure 2 As shown, an embodiment of the present application provides a device for quickly disconnecting a high-voltage wiring harness of an electric vehicle, wherein the internal cavity of the socket 2 of the device for quickly disconnecting a high-voltage wiring harness of an electric vehicle is provided with a push spring 20 for driving an insulating arc-extinguishing plug 19 to move toward the plug interface of the socket 2, an inner insulating sleeve fixed on the socket 2, and an outer insulating sleeve fixed on the insulating arc-extinguishing plug 19.

[0050] The inner insulating sleeve and the outer insulating sleeve are coaxially slidably connected to each other, and the push spring 20 is located inside the inner insulating sleeve and the outer insulating sleeve. The inner insulating sleeve and the outer insulating sleeve are coaxially slidably connected to each other for insulating the push spring 20, so that the push spring 20 is insulated from the conductive column 3 and the jack 4 respectively, to prevent the insulation gap from being too small to cause a short circuit. A plurality of arc extinguishing plates spaced apart from each other are provided in the avoidance hole of the insulating arc extinguishing plug 19, and the extinguishing protective plate is used to isolate the arc.

[0051] How it works

[0052] An embodiment of the present application provides a device for quickly disconnecting a high-voltage wiring harness of an electric vehicle. Since the device for quickly disconnecting a high-voltage wiring harness of an electric vehicle of the present application is provided with a wiring harness connector, the wiring harness connector includes a plug 1 connected to the high-voltage wiring harness and a socket 2 connected to a battery pack, the plug 1 is provided with a conductive column 3 corresponding to the connection with the high-voltage wiring harness, and the socket 2 is provided with a socket 4 plugged with the conductive column 3; a lock and unlocker, the lock and unlocker includes a lock for locking the plug 1 on the socket 2, the lock is connected to an unlocking mechanism for driving it to unlock the plug 1, and a disengagement mechanism for driving the plug 1 to pop out of the socket 2 when the lock unlocks the plug 1.

[0053] Therefore, the high-voltage wiring harness quick-disconnect device for electric vehicles of the present application uses a lock unlocker to lock and automatically and quickly disconnect the plug 1 and the socket 2 of the wiring harness connector, wherein the lock unlocker includes a lock that locks the plug 1 on the socket 2, and the lock is connected to an unlocking mechanism that drives it to unlock the plug 1, and a disengagement mechanism that drives the plug 1 to pop out of the socket 2 after the lock unlocks the plug 1. The lock unlocker can improve the convenience of using electric vehicles and reduce the difficulty of operation for users, thereby improving user experience and market competitiveness. It can also simplify the connection and disassembly process of the high-voltage wiring harness, improve maintenance efficiency, and reduce maintenance costs. A safer and faster high-voltage wiring harness connection and disassembly solution can be provided to improve the efficiency and safety of charging facilities.

[0054] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0055] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0056] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A quick disconnect device for high-voltage wiring harness of electric vehicles, characterized in that: include: A wiring harness connector, the wiring harness connector comprising a plug (1) connected to a high-voltage wiring harness and a socket (2) connected to a battery pack, the plug (1) being provided with a conductive post (3) corresponding to the high-voltage wiring harness, and the socket (2) being provided with a socket (4) plugged into the conductive post (3); A lock unlocker, the lock unlocker comprising a lock catch for locking the plug (1) on the socket (2), the lock catch being connected to an unlocking mechanism for driving it to unlock the plug (1), and a disengagement mechanism for driving the plug (1) to pop out of the socket (2) after the lock catch unlocks the socket (2).

2. A quick disconnect device for a high-voltage wire harness of an electric vehicle as claimed in claim 1, characterized in that: The lock comprises two symmetrically arranged lock tongues (5) slidably connected to the socket (2) via a guide pin (6); one end of the lock tongue (5) is provided with a wedge-shaped unlocking block (13); and the other end of the lock tongue is provided with a lock hook (7) for locking the plug (1); The unlocking mechanism is located between the two symmetrically arranged locking tongues (5), and comprises a wedge block (8) for driving the two symmetrically arranged locking tongues (5) to move in directions away from each other, and an electromagnet (9) for driving the wedge block (8) to reciprocate.

3. A quick disconnect device for a high-voltage wire harness of an electric vehicle as claimed in claim 2, characterized in that: The plug (1) is provided with a slot (11) for engaging with the lock hook (7); the lock hook (7) is a triangular barb structure; the lock hook (7) is provided with a guide slope for inserting the plug (1) into the socket (2); the guide pin (6) is connected with a locking spring (10) for driving the two symmetrically arranged lock tongues (5) to move in a direction approaching each other.

4. A quick disconnect device for a high-voltage wire harness of an electric vehicle as claimed in claim 2, characterized in that: The socket (2) is provided with a current sensor (12) for detecting a current signal, the current sensor (12) is used to obtain a current signal of the high-voltage wiring harness or the battery pack, the current sensor (12) is connected to a controller, and the controller is connected to the electromagnet (9), and when the current collected by the current sensor (12) is greater than a set threshold value, the controller controls the electromagnet (9) to be energized.

5. A quick disconnect device for a high voltage wire harness of an electric vehicle as claimed in claim 2, characterized in that: The socket (2) is slidably connected to a lever (15) for pushing the wedge block (8); one end of the lever (15) is connected to the wedge block (8); the other end of the lever (15) is provided with an unlocking lever (14) slidably connected to the socket (2); the unlocking lever (14) slides on the socket (2) to drive the lever (15) to pull the wedge block (8) to unlock the lock tongue (5).

6. A quick disconnect device for a high voltage wire harness of an electric vehicle as claimed in claim 4, characterized in that: The unlocking mechanism also includes an unlocking switch connected to the controller, and the unlocking switch controls the electromagnet (9) to be energized by delaying the controller.

7. A quick disconnect device for a high voltage wire harness of an electric vehicle as claimed in claim 1, characterized in that: The disengagement mechanism comprises guide slide bars (16) fixed on both sides of the plug (1); a slider (17) slidably connected to the guide slide bars (16) is provided on the socket (2); a compression spring (18) is sleeved on the guide slide bars (16) for driving the slider (17) to slide on the guide slide bars (16) in a direction away from the plug (1); one end of the compression spring (18) is fixed on the plug (1), and the other end of the compression spring (18) is a free end.

8. A high-voltage wire harness quick release device for electric vehicles as claimed in claim 1, characterized in that: The plug hole (4) on the socket (2) is retracted into the internal cavity of the socket (2); the internal cavity of the socket (2) is slidably connected with an insulating arc-extinguishing plug (19) that closes the plug interface of the socket (2); the insulating arc-extinguishing plug (19) is provided with an escape hole that exposes the plug hole (4); when the plug (1) pops out of the socket (2), the insulating arc-extinguishing plug (19) closes the plug interface of the socket (2).

9. A quick disconnect device for a high voltage wire harness of an electric vehicle as claimed in claim 8, characterized in that: The internal cavity of the socket (2) is provided with a push spring (20) for driving the insulating arc-extinguishing plug (19) to move toward the plug interface of the socket (2), an inner insulating sleeve fixed on the socket (2), and an outer insulating sleeve fixed on the insulating arc-extinguishing plug (19), the inner insulating sleeve and the outer insulating sleeve being coaxially slidably connected to each other, and the push spring (20) is located inside the inner insulating sleeve and the outer insulating sleeve.

10. A high voltage wire harness quick release device for electric vehicles as claimed in claim 8, characterized in that: A plurality of arc-extinguishing plates spaced apart from each other are arranged in the avoidance hole of the insulating arc-extinguishing plug (19).

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