Collision-based power cut-off device, collision-based power cut-off system and vehicle

Abstract

A collision-based power cut-off device, a collision-based power cut-off system and a vehicle. The collision-based power cut-off device comprises a fixed connector (11), a movable connector (12) and a mechanical power cut-off mechanism, wherein the fixed connector is inserted into the movable connector; one connector among the fixed connector and the movable connector is electrically connected to a first battery (31) of a vehicle, and the other connector is electrically connected to a load (33) of the vehicle; and the mechanical power cut-off mechanism is connected to the movable connector, and is used for driving, when the collision power cut-off device receives a preset collision signal, the movable connector to generate displacement away from the fixed connector.

Description

Collision power-off device, collision power-off system and vehicle

[0001] The present application claims priority to the Chinese patent application No. 202410437267.0, filed on April 11, 2024 in the China Patent Office, and entitled “Collision power-off device, collision power-off system and vehicle”, the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to, but is not limited to, the field of vehicles, and more particularly to a collision power-off device, a collision power-off system and a vehicle. BACKGROUND

[0003] With the popularity of electric vehicles, the safety of electric vehicles has attracted attention, especially how to quickly disconnect the electrical connection between the battery and the load of the vehicle after the electric vehicle is in a collision. In the related art, the explosion power of explosives is used to blow up the fuse, thereby disconnecting the electrical connection between the battery and the load.

[0004] SUMMARY

[0005] The following is a summary of the subject matter of the detailed description herein. This summary is not intended to limit the scope of the claims.

[0006] According to a first aspect of the present application, a collision power-off device of a vehicle is provided, the collision power-off device comprising: a fixed plug-in part, a movable plug-in part and a mechanical power-off mechanism; wherein the movable plug-in part is plugged with the fixed plug-in part; one of the fixed plug-in part and the movable plug-in part is used to electrically connect a first battery of the vehicle, and the other plug-in part is used to electrically connect a load of the vehicle; the mechanical power-off mechanism is connected with the movable plug-in part, and the mechanical power-off mechanism is used to drive the movable plug-in part to generate a displacement away from the fixed plug-in part after the collision power-off device receives a preset collision signal.

[0007] In an embodiment of the present application, the mechanical power-off mechanism is further used to drive the movable plug-in part to generate a displacement close to the fixed plug-in part after the collision power-off device receives a preset recovery signal.

[0008] In an embodiment of the present application, the mechanical power-off mechanism comprises: a driving assembly connected with the movable plug-in part; wherein the driving assembly drives the movable plug-in part to generate a displacement away from or close to the fixed plug-in part.

[0009] In an embodiment of the present application, the driving assembly is connected with the movable plug-in part through a connecting assembly.

[0010] In one embodiment of the present application, the driving assembly comprises a cylinder, the connecting assembly comprises a connecting rod mechanism, the cylinder is connected with one end of the connecting rod mechanism, and the other end of the connecting rod mechanism is connected with the movable plug-in part.

[0011] In one embodiment of the present application, the cylinder comprises a telescopic cylinder, and the telescopic cylinder has a first piston rod, one end of the first piston rod being connected with the connecting rod mechanism.

[0012] In one embodiment of the present application, the telescopic direction of the first piston rod is parallel to the plug-in direction of the movable plug-in part.

[0013] In one embodiment of the present application, the connecting rod mechanism comprises a connecting rod and a connecting column, one end of the connecting rod is connected with the movable plug-in part, and the extension direction of the connecting rod is parallel to the plug-in direction of the movable plug-in part, and the connecting column is connected between the other end of the connecting rod and the first piston rod.

[0014] In one embodiment of the present application, the number of the telescopic cylinders is at least one.

[0015] In one embodiment of the present application, the telescopic cylinder comprises a bidirectional telescopic cylinder, and the bidirectional telescopic cylinder has second and third piston rods which are coaxial and synchronously telescopic, and the second and third piston rods are both connected with the connecting rod mechanism.

[0016] In one embodiment of the present application, the telescopic directions of the second and third piston rods both have an angle with the plug-in direction of the movable plug-in part, the connecting rod mechanism comprises a scissor mechanism, a first end of the scissor mechanism is connected with the second and third piston rods, and a second end of the scissor mechanism is connected with the movable plug-in part.

[0017] In one embodiment of the present application, the scissor mechanism comprises first and second scissor rods which are movably connected, a first end of the first scissor rod is movably connected with the second piston rod, a first end of the second scissor rod is movably connected with the third piston rod, a second end of the first scissor rod is movably connected with the movable plug-in part, and a second end of the second scissor rod is movably connected with the movable plug-in part.

[0018] In one embodiment of the present application, the connecting rod mechanism further comprises first and second adapter rods, a first end of the first adapter rod is movably connected with the movable plug-in part, a second end of the first adapter rod is movably connected with the second end of the first scissor rod, a first end of the second adapter rod is movably connected with the movable plug-in part, and a second end of the second adapter rod is movably connected with the second end of the second scissor rod.

[0019] In an embodiment of the present application, the collision power-off device further comprises: a gas tank and a control valve; wherein the gas tank is connected to the cylinder through a gas pipe; the control valve is arranged between the gas tank and the cylinder, and is configured to receive the preset collision signal and control the gas tank to charge the cylinder when the preset collision signal is received, so that the cylinder drives the movable plug to move away from the fixed plug through the connecting rod mechanism.

[0020] In an embodiment of the present application, the gas in the gas tank is a non-flammable gas.

[0021] In an embodiment of the present application, the gas in the gas tank comprises at least one of carbon dioxide, nitrogen and inert gas.

[0022] In an embodiment of the present application, a one-way valve is arranged on the gas pipe, an inlet of the one-way valve is communicated with the gas tank, and an outlet of the one-way valve is communicated with the cylinder.

[0023] In an embodiment of the present application, the number of the gas tanks is at least two; each gas tank is connected to the cylinder through the gas pipe, and the control valve is arranged between each gas tank and the cylinder.

[0024] In an embodiment of the present application, the fixed plug comprises a first positive terminal, a first negative terminal and a first backup terminal; the movable plug comprises a second positive terminal, a second negative terminal and a second backup terminal; and when the movable plug is plugged with the fixed plug, the first positive terminal is electrically connected to the second positive terminal, the first negative terminal is electrically connected to the second negative terminal, and the first backup terminal is electrically connected to the second backup terminal; wherein the first positive terminal and the first negative terminal are configured to be electrically connected to the positive terminal and the negative terminal of the first battery respectively, and the second positive terminal and the second negative terminal are configured to be electrically connected to the positive terminal and the negative terminal of the load respectively.

[0025] According to the second aspect of the present application, a collision power-off system is further provided, comprising: a collision switch sensor and any one of the collision power-off devices; wherein the collision switch sensor is configured to generate the preset collision signal; and the collision switch sensor is connected to the collision power-off device to transmit the preset collision signal to the collision power-off device.

[0026] In an embodiment of the present application, the collision power-off system further comprises: a first battery and a load; wherein one of the fixed plug and the movable plug is electrically connected to the first battery, and the other one is electrically connected to the load.

[0027] According to the third aspect of the present application, there is further provided a vehicle comprising: a crash beam, and any one of the crash disconnect systems described above; wherein the crash switch sensor is arranged on the crash beam.

[0028] In one embodiment of the present application, the vehicle further comprises: a second battery, the second battery being electrically connected to the crash switch sensor and the control valve to supply power to the crash switch sensor and the control valve.

[0029] Other aspects can become apparent after reading and understanding the accompanying drawings and detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0030] Fig. 1 is an exploded view of a crash disconnect device of a vehicle according to an embodiment of the present application;

[0031] Fig. 2a is a circuit diagram of a crash disconnect system of a vehicle according to an embodiment of the present application when the fixed connector and the movable connector are plugged;

[0032] Fig. 2b is a structural state diagram of a crash disconnect device of a vehicle according to an embodiment of the present application when the fixed connector and the movable connector are plugged;

[0033] Fig. 3a is a circuit diagram of a crash disconnect system of a vehicle according to an embodiment of the present application when the fixed connector and the movable connector are unplugged;

[0034] Fig. 3b is a structural state diagram of a crash disconnect device of a vehicle according to an embodiment of the present application when the fixed connector and the movable connector are unplugged;

[0035] Fig. 4a is a structural state diagram of a crash disconnect device of a vehicle according to another embodiment of the present application when the fixed connector and the movable connector are plugged;

[0036] Fig. 4b is a structural state diagram of a crash disconnect device of a vehicle according to another embodiment of the present application when the fixed connector and the movable connector are unplugged;

[0037] Fig. 4c is a schematic diagram of a cylinder and a scissor mechanism according to another embodiment of the present application;

[0038] Fig. 4d is a structural schematic diagram of the cylinder shown in Fig. 4c in the A-A cross section.

[0039] REFERENCE NUMERALS:

[0040] 100 - collision power-off device; 11 - fixed plug-in; 111 - first positive terminal; 112 - first negative terminal; 113 - first spare terminal; 12 - movable plug-in; 121 - second positive terminal; 122 - second negative terminal; 123 - second spare terminal; 13 - third plug-in; 131 - third positive terminal; 132 - third negative terminal; 133 - third spare terminal; 14 - fourth plug-in; 141 - fourth positive terminal; 142 - fourth negative terminal; 143 - fourth spare terminal; 20 - cylinder; 21 - first piston rod; 22 - second piston rod; 23 - third piston rod; 24 - communication cavity; 31 - first battery; 32 - second battery; 33 - load; 34 - collision switch sensor; 35 - anti-collision beam; 41 - connecting rod; 42 - connecting column; 43 - adapter column; 51 - first scissor rod; 52 - second scissor rod; 53 - first adapter rod; 54 - second adapter rod; 61 - gas storage tank; 62 - control valve; 63 - gas pipe; 64 - tee joint; 65 - power line and signal line; 70 - housing. DETAILED DESCRIPTION

[0041] Example embodiments according to the present application will be described in detail below with reference to the accompanying drawings. The described embodiments are merely some embodiments of the present application, and are not all embodiments of the present application. It should be understood that the present application is not limited by the example embodiments described herein. All other embodiments obtained by those skilled in the art based on the example embodiments of the present application described in the present application without creative effort should fall within the scope of the present application.

[0042] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without one or more of these specific details. In other instances, well-known features have not been described in detail in order to avoid obscuring the present application.

[0043] It is to be understood that the present application can be carried out by different embodiments and that the embodiments presented are only a part of the present application, and the present application should not be construed as being limited to the embodiments presented herein. Rather, these embodiments are presented so that the disclosure will be complete and fully convey the scope of the present application to those skilled in the art.

[0044] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0045] For a thorough understanding of the application, reference will be made to the following detailed description, in conjunction with the accompanying drawings, in which:

[0046] The collision quick power-off device of the electric vehicle in the related art sets collision switches on the front bumper and the rear bumper of the electric vehicle, and directly connects the collision switches to the connected line of the ignition device. When the vehicle is subjected to a collision, the collision switches are closed to start the ignition device to explode the TNT explosive to generate a high-temperature fuse to cut off the high-voltage loop. The power-off is timely, and a collision signal does not need to be sent, thereby avoiding a link of information transmission and a short circuit, electric shock, explosion, and other catastrophic dangers caused by time delay of power-off, and ensuring the personal safety of the driver.

[0047] However, the quick power-off device in this form uses the explosion power of the explosive to explode and power off, and has many uncontrollable factors and poor reliability. First, the strength of the explosion power is uncontrollable and is greatly affected by environmental factors. If the explosion is weak, the line is not timely disconnected, which easily causes danger. If the explosion is too strong, a secondary danger is easily caused, and other key components are damaged or combustion occurs. Second, the device cannot be used twice, and is a one-time product. After explosion, it is scrapped and damaged. Third, the explosive device is installed on the vehicle, which itself has a psychological burden on the driver and affects the purchase desire of consumers. To solve at least part of the problems shown above, the application provides a new collision power-off device of a vehicle.

[0048] Some embodiments of the application will be described in detail with reference to the drawings. In the case of no conflict, the embodiments described below and the features in the embodiments can be combined with each other.

[0049] First, the application scenario of the collision power-off device of the vehicle shown in the examples of the application is introduced. The collision power-off device of the vehicle is applied to a vehicle with a battery and a load to timely disconnect the electrical connection between the battery and the load after the vehicle is subjected to a collision.

[0050] With reference to FIG. 1, FIG. 2a, FIG. 2b, FIG. 3a and FIG. 3b, the application provides a collision power-off device 100 of a vehicle, which can include a fixed plug 11, a movable plug 12 and a mechanical power-off mechanism. The movable plug 12 is plugged with the fixed plug 11. One of the fixed plug 11 and the movable plug 12 is used for electrically connecting a first battery 31, and the other is used for electrically connecting a load 33. The mechanical power-off mechanism is connected with the movable plug 12, and is used for driving the movable plug 12 to generate displacement away from the fixed plug 11 after the collision power-off device 100 receives a preset collision signal.

[0051] In the above scheme, by setting the mechanical power-off mechanism, and the fixed plug 11 and the movable plug 12 in plug-in cooperation, one of the fixed plug 11 and the movable plug 12 is used for electrically connecting the first battery 31, and the other is used for electrically connecting the load 33. The mechanical power-off mechanism is used for driving the movable plug 12 to generate displacement away from the fixed plug 11 after the collision power-off device 100 receives a preset collision signal, so as to separate the movable plug 12 from the fixed plug 11. Compared with the explosive method in the related art, the application drives the two plugs to separate by the mechanical power-off mechanism, and utilizes the mechanical separation principle, so as to be more reliable. The above structures will be described in detail below in combination with the drawings.

[0052] When the fixed plug 11 and the movable plug 12 are set, any two plugs capable of plug-in cooperation can be adopted. With reference to FIG. 2a, FIG. 2b, FIG. 3a and FIG. 3b, the movable plug 12 is plugged with the fixed plug 11. For example, one of the fixed plug 11 and the movable plug 12 is a plug-in cooperation plug male, and the other is a plug-in cooperation plug female. For example, the fixed plug 11 can be a plug male, and the movable plug 12 can be a plug female. In addition, one of the fixed plug 11 and the movable plug 12 is used for electrically connecting the first battery 31, and the other is used for electrically connecting the load 33. For example, the first battery 31 can be a vehicle-mounted battery on the vehicle, for example, the first battery 31 can be a power battery on the vehicle. For example, the load 33 can be a load on the vehicle.

[0053] For example, referring to FIG. 2a, FIG. 2b, FIG. 3a and FIG. 3b, the fixed connector 11 can be used to connect the first battery 31 of the vehicle, and the movable connector 12 can be used to connect the load 33 of the vehicle. Alternatively, the fixed connector 11 can be used to connect the load 33 of the vehicle, and the movable connector 12 can be used to connect the first battery 31 of the vehicle. For example, the fixed connector 11 can be electrically connected to the first battery 31 or the load 33 by other connector plug-in connection, or by welding, screw fastening, etc. The movable connector 12 can be electrically connected to the first battery 31 or the load 33 by other connector plug-in connection, or by welding, screw fastening, etc. Of course, the first battery 31 and the load 33 can also be batteries and loads on other devices.

[0054] When the mechanical power-off mechanism is provided, referring to FIG. 2a, FIG. 2b, FIG. 3a and FIG. 3b, the mechanical power-off mechanism is connected to the movable connector 12 as a driving mechanism, and is used to drive the movable connector 12 to generate displacement away from the fixed connector 11 after the collision power-off device 100 receives a preset collision signal, so that the movable connector 12 is separated from the fixed connector 11. Compared with the explosive method in the related art, the embodiment of the present application drives the two connectors to separate by the mechanical power-off mechanism, and utilizes the mechanical separation principle, so that it is more reliable.

[0055] In some embodiments, referring to FIG. 2a, FIG. 2b, FIG. 3a and FIG. 3b, the mechanical power-off mechanism can also be used to drive the movable connector 12 to generate displacement close to the fixed connector 11 after the collision power-off device 100 receives a preset recovery signal, so that the movable connector 12 is plugged with the fixed connector 11. Thus, the automatic plugging of the fixed connector 11 and the movable connector 12 is realized.

[0056] Regarding the way in which the mechanical power-off mechanism drives the movable connector 12 to generate displacement away from or close to the fixed connector 11, various ways can be adopted. That is, regarding the mechanical power-off mechanism, any separation mechanism based on mechanical driving and transmission can be adopted.

[0057] For example, the mechanical power-off mechanism can include a driving assembly connected to the movable connector 12. The driving assembly drives the movable connector 12 to generate displacement away from or close to the fixed connector 11, so that the movable connector 12 is separated from or plugged with the fixed connector 11, thereby realizing the automatic separation or automatic plugging of the fixed connector 11 and the movable connector 12. Regarding the setting way of the driving assembly, various ways can be adopted. For example, referring to FIG. 2a, FIG. 2b, FIG. 3a and FIG. 3b, the driving assembly can include a gas cylinder 20.

[0058] In the implementation of connecting the driving assembly with the movable connector 12, various ways can be adopted. Exemplarily, referring to FIG. 2a, FIG. 2b, FIG. 3a and FIG. 3b, the driving assembly can be connected with the movable connector 12 through a connecting assembly, i.e. the driving assembly indirectly connects the movable connector 12 through the connecting assembly. The driving assembly drives the movable connector 12 to generate displacement away from or close to the fixed connector 11 through the connecting assembly, so as to separate or connect the movable connector 12 with the fixed connector 11, thereby realizing automatic separation or automatic connection of the fixed connector 11 and the movable connector 12. The connecting assembly can be arranged in various ways. Exemplarily, referring to FIG. 2a, FIG. 2b, FIG. 3a and FIG. 3b, the connecting assembly can include a connecting rod mechanism. It can be understood that in other embodiments, the driving assembly can be directly connected with the movable connector 12, and in this case, the connecting assembly is not needed, but the driving assembly directly drives the movable connector 12 to generate displacement away from or close to the fixed connector 11, so as to separate or connect the movable connector 12 with the fixed connector 11.

[0059] Exemplarily, referring to FIG. 2a, FIG. 2b, FIG. 3a and FIG. 3b, the mechanical power-off mechanism can include a driving assembly and a connecting assembly. The connecting assembly connects the driving assembly and the movable connector 12, and the driving assembly drives the movable connector 12 to generate displacement away from or close to the fixed connector 11 through the connecting assembly. Specifically, the driving assembly can drive the movable connector 12 to generate displacement away from the fixed connector 11 through the connecting assembly, so as to separate the movable connector 12 from the fixed connector 11. In addition, the driving assembly can also drive the movable connector 12 to generate displacement close to the fixed connector 11 through the connecting assembly, so as to connect the movable connector 12 with the fixed connector 11.

[0060] In setting the driving assembly and the connecting assembly, various ways can be adopted. For example, referring to FIG. 2a, FIG. 2b, FIG. 3a and FIG. 3b, the driving assembly can include a cylinder 20, and the connecting assembly can include a connecting rod mechanism. The cylinder 20 is connected with one end of the connecting rod mechanism, and the other end of the connecting rod mechanism is connected with the movable plug 12. The cylinder 20 drives the movable plug 12 to generate displacement away from or close to the fixed plug 11 through the connecting rod mechanism. Specifically, the cylinder 20 can drive the movable plug 12 to generate displacement away from the fixed plug 11 through the connecting rod mechanism, so as to separate the movable plug 12 from the fixed plug 11. In addition, the cylinder 20 can also drive the movable plug 12 to generate displacement close to the fixed plug 11 through the connecting rod mechanism, so as to plug the movable plug 12 with the fixed plug 11. By adopting the cylinder 20 as the driving assembly and the connecting rod mechanism as the connecting assembly, the electrical signal in the driving and transmission process can be reduced, so as to improve the reliability and stability of the driving and transmission. It should be noted that the setting way of the driving assembly is not limited to the way of adopting the cylinder 20, and in addition thereto, other driving devices can also be adopted, for example, the driving assembly can also adopt a motor. Correspondingly, the setting way of the connecting assembly is not limited to the way of adopting the connecting rod mechanism, and in addition thereto, other transmission mechanisms can also be adopted.

[0061] For example, referring to FIG. 2a, FIG. 2b, FIG. 3a and FIG. 3b, the cylinder 20 as the driving mechanism is used to drive the movable plug 12 to generate displacement away from the fixed plug 11 through the connecting rod mechanism after the collision power-off device 100 receives the preset collision signal, so as to separate the movable plug 12 from the fixed plug 11. Alternatively, the cylinder 20 is also used to drive the movable plug 12 to generate displacement close to the fixed plug 11 through the connecting rod mechanism after the collision power-off device 100 receives the preset recovery signal, so as to plug the movable plug 12 with the fixed plug 11.

[0062] For example, referring to FIGS. 2a, 2b, 3a and 3b, the cylinder 20 is connected to the movable plug-in part 12, and when the movable plug-in part 12 is driven to move away from the fixed plug-in part 11 to separate the movable plug-in part 12 from the fixed plug-in part 11, the cylinder 20 can drive the movable plug-in part 12 to move along the plug-in direction of the movable plug-in part 12, so that the movable plug-in part 12 is separated from the fixed plug-in part 11. That is, the movable plug-in part 12 is separated from the fixed plug-in part 11 by mechanical driving of the cylinder 20, so that the fixed plug-in part 11 and the movable plug-in part 12 are separated by mechanical separation principle. Not only can the purpose of quickly driving the fixed plug-in part 11 and the movable plug-in part 12 to separate after the crash power-off device 100 receives the preset crash signal be achieved, but also the separation is more reliable and stable. That is, compared with the explosive method in the related art, in the embodiment, the cylinder 20 and two plug-in parts that are plug-in matched are provided, one of the fixed plug-in part 11 and the movable plug-in part 12 is used for electrically connecting the first battery 31 of the vehicle, and the other is used for electrically connecting the load 33 of the vehicle. The cylinder 20 is used for driving the movable plug-in part 12 to move away from the fixed plug-in part 11 to separate the movable plug-in part 12 from the fixed plug-in part 11 after the crash power-off device 100 receives the preset crash signal. The power-off structure that the two plug-in parts are separated by the cylinder 20 utilizes the mechanical separation principle, so that the separation is more reliable.

[0063] In some embodiments, the cylinder 20 can also be used to drive the movable plug-in part 12 to move close to the fixed plug-in part 11 to plug-in the movable plug-in part 12 with the fixed plug-in part 11 after the crash power-off device 100 receives the preset recovery signal. Specifically, the cylinder 20 is connected to the movable plug-in part 12, and drives the movable plug-in part 12 to move close to the fixed plug-in part 11 to plug-in the movable plug-in part 12 with the fixed plug-in part 11.

[0064] For example, referring to FIGS. 2a, 2b, 3a and 3b, the cylinder 20 is connected to the movable plug-in part 12, and when the movable plug-in part 12 is driven to move away from the fixed plug-in part 11 to separate the movable plug-in part 12 from the fixed plug-in part 11, the cylinder 20 can drive the movable plug-in part 12 to move along the plug-in direction of the movable plug-in part 12, so that the movable plug-in part 12 is separated from the fixed plug-in part 11. That is, the movable plug-in part 12 is separated from the fixed plug-in part 11 by mechanical driving of the cylinder 20, so that the fixed plug-in part 11 and the movable plug-in part 12 are separated by mechanical separation principle. Not only can the purpose of quickly driving the fixed plug-in part 11 and the movable plug-in part 12 to separate after the crash power-off device 100 receives the preset crash signal be achieved, but also the separation is more reliable and stable. That is, compared with the explosive method in the related art, in the embodiment, the cylinder 20 and two plug-in parts that are plug-in matched are provided, one of the fixed plug-in part 11 and the movable plug-in part 12 is used for electrically connecting the first battery 31 of the vehicle, and the other is used for electrically connecting the load 33 of the vehicle. The cylinder 20 is used for driving the movable plug-in part 12 to move away from the fixed plug-in part 11 to separate the movable plug-in part 12 from the fixed plug-in part 11 after the crash power-off device 100 receives the preset crash signal. The power-off structure that the two plug-in parts are separated by the cylinder 20 utilizes the mechanical separation principle, so that the separation is more reliable.

[0065] The embodiments of the present application can adopt various ways to realize the displacement of the movable plug 12 away from or close to the fixed plug 11 driven by the cylinder 20, so as to separate or plug the movable plug 12 and the fixed plug 11. For example, the cylinder 20 can drive the movable plug 12 to produce the displacement away from or close to the fixed plug 11 through a connecting rod mechanism, so as to separate or plug the movable plug 12 and the fixed plug 11. Specifically, the cylinder 20 is connected to the movable plug 12 through the connecting rod mechanism, and the cylinder 20 can drive the movable plug 12 to produce the displacement away from or close to the fixed plug 11 through the connecting rod mechanism, so as to separate or plug the movable plug 12 and the fixed plug 11. It should be noted that, in addition to the connecting rod mechanism, the cylinder 20 can also drive the movable plug 12 to move along the plugging direction of the movable plug 12 through other transmission mechanisms. Alternatively, the cylinder 20 is directly connected to the movable plug 12, and no transmission mechanism is needed to drive the movable plug 12.

[0066] For example, referring to FIGS. 2a, 2b, 3a and 3b, the cylinder 20 can include a telescopic cylinder 20. The telescopic cylinder 20 has a first piston rod 21, and one end of the first piston rod 21 is connected to the connecting rod mechanism. That is, the first piston rod 21 drives the movable plug 12 to produce the displacement away from or close to the fixed plug 11 through the connecting rod mechanism, so as to separate or plug the movable plug 12 and the fixed plug 11. Specifically, the first piston rod 21 is connected to the movable plug 12 through the connecting rod mechanism, so as to drive the movable plug 12 to separate or plug the fixed plug 11 when the first piston rod 21 is extended or retracted. Specifically, the telescopic cylinder 20 can drive the movable plug 12 to produce the displacement away from the fixed plug 11 when it is extended, so as to separate the movable plug 12 and the fixed plug 11; and the telescopic cylinder 20 drives the movable plug 12 to produce the displacement close to the fixed plug 11 when it is retracted, so as to plug the movable plug 12 and the fixed plug 11. In other embodiments, the first piston rod 21 can also drive the movable plug 12 to produce the displacement close to the fixed plug 11 when it is extended, so as to plug the movable plug 12 and the fixed plug 11; and the first piston rod 21 drives the movable plug 12 to produce the displacement away from the fixed plug 11 when it is retracted, so as to separate the movable plug 12 and the fixed plug 11.

[0067] The extension direction of the first piston rod 21 of the telescopic cylinder 20 can be at different angles with the plugging direction of the movable plug 12, which is related to the setting position, the type of the connecting mechanism, etc.

[0068] For example, referring to FIGS. 2a, 2b, 3a and 3b, the extension direction of the first piston rod 21 can be parallel to the insertion direction of the movable plug 12. With this arrangement, when the first piston rod 21 is extended or retracted, the movable plug 12 can be directly driven to move along the insertion direction of the movable plug 12 without changing the force transmission direction, thereby generating displacement away from or close to the fixed plug 11 to separate or insert the movable plug 12 from the fixed plug 11, so that the arrangement of the linkage mechanism can be simplified.

[0069] When the extension direction of the first piston rod 21 is parallel to the insertion direction of the movable plug 12, the arrangement of the linkage mechanism can adopt various modes.

[0070] For example, referring to FIGS. 2a, 2b, 3a and 3b, the linkage mechanism can include a linkage rod 41 and a connecting column 42. One end of the linkage rod 41 is connected to the movable plug 12, and the extension direction of the linkage rod 41 is parallel to the insertion direction of the movable plug 12. The connecting column 42 is connected between the other end of the linkage rod 41 and the first piston rod 21. The first piston rod 21 drives the movable plug 12 to generate displacement away from or close to the fixed plug 11 through the connecting column 42 and the linkage rod 41, so as to separate or insert the movable plug 12 from the fixed plug 11.

[0071] For example, one end of the linkage rod 41 can be connected to the movable plug 12 through an adapter column 43. The connecting column 42 is connected between the linkage rod 41 and the first piston rod 21. When the first piston rod 21 is extended or retracted, the movable plug 12 can be driven to generate displacement away from or close to the fixed plug 11 through the connecting column 42 and the linkage rod 41, so as to separate or insert the movable plug 12 from the fixed plug 11. By adopting the linkage rod 41 and the connecting column 42, the telescopic cylinder 20 can be arranged above, below or on the left or right side of the movable plug 12, i.e. the telescopic cylinder 20 does not need to be arranged opposite to the movable plug 12, thereby facilitating flexible adjustment of the position between the movable plug 12 and the telescopic cylinder 20. For example, the telescopic cylinder 20 can be arranged above the movable plug 12, the linkage rod 41 is arranged directly below or obliquely below the first piston rod 21, one end of the linkage rod 41 is connected to the movable plug 12, the other end of the linkage rod 41 is connected to one end of the connecting column 42, and the other end of the connecting column 42 is connected to the first piston rod 21, so that when the first piston rod 21 is extended or retracted, the movable plug 12 can be driven to separate or insert from the fixed plug 11 through the connecting column 42 and the linkage rod 41.

[0072] Specifically, referring to FIG. 2a, FIG. 2b, FIG. 3a and FIG. 3b, when the first piston rod 21 is extended, the displacement of the movable plug 12 away from the fixed plug 11 is driven by the connecting column 42 and the connecting rod 41, so that the movable plug 12 is separated from the fixed plug 11. When the first piston rod 21 is retracted, the displacement of the movable plug 12 close to the fixed plug 11 is driven by the connecting column 42 and the connecting rod 41, so that the movable plug 12 is plugged with the fixed plug 11. In other embodiments, when the first piston rod 21 is extended, the displacement of the movable plug 12 close to the fixed plug 11 is driven by the connecting column 42 and the connecting rod 41, so that the movable plug 12 is plugged with the fixed plug 11. When the first piston rod 21 is retracted, the displacement of the movable plug 12 away from the fixed plug 11 is driven by the connecting rod 41 and the connecting column 42, so that the movable plug 12 is separated from the fixed plug 11. That is, whether the first piston rod 21 is extended or retracted to drive the movable plug 12 to separate from the fixed plug 11 can be adaptively adjusted according to the setting position and scene.

[0073] It should be understood that when the extension and retraction direction of the first piston rod 21 is parallel to the plugging direction of the movable plug 12, the setting mode of the connecting rod mechanism is not limited to the above-mentioned mode, and other modes can also be used. For example, the extension and retraction cylinder 20 can be directly arranged opposite to the movable plug 12, that is, the movable plug 12 is arranged between the fixed plug 11 and the extension and retraction cylinder 20, and the first piston rod 21 of the extension and retraction cylinder 20 is directly connected with the movable plug 12, so as to directly drive the movable plug 12 to plug or separate from the fixed plug 11.

[0074] For example, referring to FIG. 2a, FIG. 2b, FIG. 3a and FIG. 3b, the number of the extension and retraction cylinders 20 is at least one. The first piston rod 21 of each extension and retraction cylinder 20 drives the movable plug 12 to generate displacement away from or close to the fixed plug 11 through the connecting rod mechanism. That is, the first piston rod 21 of each extension and retraction cylinder 20 is connected with the movable plug 12 through the connecting rod mechanism, so as to drive the movable plug 12 to generate displacement away from or close to the fixed plug 11 through the connecting rod mechanism. Specifically, the number of the extension and retraction cylinders 20 can be one, two or more, and correspondingly, the number of the connecting rod mechanisms can be equal to the number of the extension and retraction cylinders 20, and each extension and retraction cylinder 20 is connected with the movable plug 12 through the corresponding connecting rod mechanism. By using this setting mode, when the number of the extension and retraction cylinders 20 is multiple, the movable plug 12 can be simultaneously driven to separate or plug with the fixed plug 11 by the multiple extension and retraction cylinders 20, so as to improve the reliable stability of the extension and retraction cylinder 20 driving the movable plug 12 to move along the plugging direction of the movable plug 12.

[0075] In addition, it should be noted that the telescopic cylinder 20 is not limited to the one-way telescopic cylinder 20 shown above, and other types of cylinder 20 can also be used.

[0076] For example, referring to FIGS. 4a-4d, the telescopic cylinder 20 can also include a two-way telescopic cylinder 20 having second and third piston rods 22 and 23 that are coaxial and synchronously telescopic. That is, the two-way telescopic cylinder 20 has two first piston rods 21, namely the second and third piston rods 22 and 23, which are coaxial and synchronously telescopic. Specifically, the second and third piston rods 22 and 23 are assembled in the same piston chamber, and when the piston chamber is inflated, the second and third piston rods 22 and 23 can be simultaneously pushed out, and when the piston chamber is deflated, the second and third piston rods 22 and 23 can be simultaneously pushed in.

[0077] At this time, the second and third piston rods 22 and 23 can be connected to the linkage mechanism, so that the second and third piston rods 22 and 23 can simultaneously drive the movable plug 12 to move away from or approach the fixed plug 11 to separate or plug the movable plug 12 from the fixed plug 11. That is, the second and third piston rods 22 and 23 can drive the movable plug 12 to move away from or approach the fixed plug 11 through the linkage mechanism to separate or plug the movable plug 12 from the fixed plug 11.

[0078] Specifically, the second and third piston rods 22 and 23 can be connected to the linkage mechanism to drive the movable plug 12 to move away from or approach the fixed plug 11 when the second and third piston rods 22 and 23 are simultaneously extended or retracted. That is, each of the second and third piston rods 22 and 23 is connected to the linkage mechanism to drive the movable plug 12 to move along the plugging direction of the movable plug 12 when the second and third piston rods 22 and 23 are simultaneously extended or retracted, so as to separate or plug the movable plug 12 from the fixed plug 11.

[0079] When the two-way telescopic cylinder 20 is used, the telescopic direction of the piston rod and the plugging direction of the movable plug 12 can adopt various arrangements.

[0080] Exemplarily, referring to FIGS. 4a-4d, the extension and retraction directions of the second piston rod 22 and the third piston rod 23 can each have an angle with the plug-in direction of the movable plug-in piece 12. That is, the extension and retraction directions of the second piston rod 22 and the third piston rod 23 are not parallel to the plug-in direction of the movable plug-in piece 12. Exemplarily, the angle can be 90°, that is, the extension and retraction directions of the second piston rod 22 and the third piston rod 23 can each be perpendicular to the plug-in direction of the movable plug-in piece 12. Of course, in other embodiments, the angle can also be 80°, 85°, 95°, 100°, or other angles. At this time, the linkage mechanism can adjust the transmission direction in multiple ways to adjust the driving force of the second piston rod 22 and the second piston rod 22 in the extension and retraction directions to the driving force of the movable plug-in piece 12 in the plug-in direction, so as to drive the movable plug-in piece 12 to move along the plug-in direction of the movable plug-in piece 12.

[0081] Exemplarily, referring to FIGS. 4a-4d, the linkage mechanism can include a scissor mechanism, a first end of the scissor mechanism is connected to the second piston rod 22 and the third piston rod 23, and a second end of the scissor mechanism is connected to the movable plug-in piece 12. And the second piston rod 22 and the third piston rod 23 drive the movable plug-in piece 12 to produce displacement away from or close to the fixed plug-in piece 11 through the scissor mechanism, so as to separate or plug the movable plug-in piece 12 and the fixed plug-in piece 11. Specifically, when the second piston rod 22 and the third piston rod 23 are extended or retracted at the same time, the movable plug-in piece 12 can be driven to produce displacement away from or close to the fixed plug-in piece 11 through the scissor mechanism, so as to separate or plug the movable plug-in piece 12 and the fixed plug-in piece 11. By setting the scissor mechanism in the linkage mechanism, the characteristics of the scissor mechanism can change the direction of the transmission force, and the driving force of the second piston rod 22 and the third piston rod 23 when extending and retracting is adjusted to the driving force of the movable plug-in piece 12 in the plug-in direction, so as to facilitate the movement of the movable plug-in piece 12 along the plug-in direction of the movable plug-in piece 12.

[0082] In the setting of the scissors mechanism, various ways can be adopted. Exemplarily, referring to FIGS. 4a-4d, the scissors mechanism can include a first scissors rod 51 and a second scissors rod 52 which are movably connected. The first end of the first scissors rod 51 is movably connected with the second piston rod 22, and the first end of the second scissors rod 52 is movably connected with the third piston rod 23. The second end of the first scissors rod 51 is movably connected with the movable adapter 12, and the second end of the second scissors rod 52 is movably connected with the movable adapter 12. In this way, only one scissors unit is provided in the scissors mechanism, thereby reducing the space occupied by the scissors mechanism and improving the reliability and stability of the scissors mechanism, and facilitating the scissors mechanism to change the driving force direction provided by the second piston rod 22 and the third piston rod 23 stably and reliably. In other embodiments, the scissors mechanism can include multiple scissors units connected in series, each of which is composed of two hinged scissors rods. It should be noted that the above-mentioned movably connected means that a connection mode capable of relative movement such as, but not limited to, hinging can be adopted.

[0083] The embodiments of the present application can adopt various connection modes to movably connect the second end of the first scissors rod 51 with the movable adapter 12 and movably connect the second end of the second scissors rod 52 with the movable adapter 12, so as to prevent the movable adapter 12 from being stuck with the scissors mechanism. Exemplarily, referring to FIGS. 4a and 4b, the linkage mechanism can further include a first adapter rod 53 and a second adapter rod 54. The first end of the first adapter rod 53 is movably connected with the movable adapter 12, and the second end of the first adapter rod 53 is movably connected with the second end of the first scissors rod 51. The first end of the second adapter rod 54 is movably connected with the movable adapter 12, and the second end of the second adapter rod 54 is movably connected with the second end of the second scissors rod 52. By providing the first adapter rod 53 and the second adapter rod 54, the two ends of the first adapter rod 53 are movably connected with the movable adapter 12 and the second end of the first scissors rod 51, respectively, and the two ends of the second adapter rod 54 are movably connected with the movable adapter 12 and the second end of the second scissors rod 52, respectively, thereby preventing the scissors mechanism from being stuck with the movable adapter 12 when the scissors mechanism is extended or retracted. It should be noted that the above-mentioned movably connected means that a connection mode capable of relative movement such as, but not limited to, hinging can be adopted. It should be noted that, in addition to the above-mentioned modes, other modes can also be adopted to movably connect the second end of the first scissors rod 51 with the movable adapter 12 and movably connect the second end of the second scissors rod 52 with the movable adapter 12, so as to prevent the movable adapter 12 from being stuck with the scissors mechanism. For example, a slide way can also be adopted.

[0084] For example, referring to FIGS. 1-4b, the collision de-energizing device 100 can further include a gas tank 61 and a control valve 62. The gas tank 61 is connected to the cylinder 20 through a gas pipe 63. The control valve 62 is arranged between the gas tank 61 and the cylinder 20, and is configured to receive a preset collision signal and, upon receiving the preset collision signal, control the gas tank 61 to charge the cylinder 20, so that the cylinder 20 drives the movable plug 12 to move away from the fixed plug 11 through the connecting rod mechanism, and the movable plug 12 is separated from the fixed plug 11. The control valve 62 can be any type of valve that can receive a control signal and control the opening and closing of the control valve 62, for example, an electromagnetic control valve can be used as the control valve 62. By arranging the gas tank 61 to charge the cylinder 20 to drive the movable plug 12 to separate from the fixed plug 11, only a single pulse of the preset collision signal is needed to open the control valve 62, and no other electrical control signal is needed, thereby improving the reliability and anti-interference of the de-energizing control process. In addition, after the collision de-energizing is used, the gas tank 61 can be replaced, the gas tank 61 can be recharged, the gas in the cylinder 20 can be returned to the gas tank 61, and the like, thereby achieving secondary use.

[0085] For example, the gas in the gas tank 61 is a non-flammable gas, so that even if the gas in the gas tank 61 leaks, there will be no burning or ignition, thereby improving safety. The type of non-flammable gas can be of various types. For example, the gas in the gas tank 61 can include at least one of carbon dioxide, nitrogen, and inert gas, so as to charge the gas tank 61 and improve safety.

[0086] For example, the gas in the gas tank 61 can be compressed high-pressure gas, so that after the control valve 62 is opened, the gas tank 61 rapidly charges the cylinder 20, thereby improving the efficiency of the gas tank 61 charging the cylinder 20, and improving the efficiency of the collision de-energizing.

[0087] For example, referring to FIGS. 1-4b, a one-way valve can be further arranged on the gas pipe 63. The inlet of the one-way valve is communicated with the gas tank 61, and the outlet of the one-way valve is communicated with the cylinder 20, so that the gas in the gas tank 61 can only flow into the cylinder 20 through the one-way valve, and the gas in the cylinder 20 cannot flow back to the gas tank 61, thereby preventing the gas in the cylinder 20 from flowing back to the gas tank 61 and causing the movable plug 12 to be inserted into the fixed plug 11 again, thereby improving the reliability and safety of the collision de-energizing process.

[0088] Exemplarily, the number of the gas storage tanks 61 can be at least two, each of the gas storage tanks 61 is connected with the gas cylinder 20 through the gas pipe 63, and each of the gas storage tanks 61 and the gas cylinder 20 is provided with the control valve 62. By adopting the setting mode, when part of the gas storage tanks 61 or the control valves 62 cannot inflate the gas cylinder 20 due to faults, the other gas storage tanks 61 can quickly inflate the gas cylinder 20, so that the gas cylinder 20 drives the movable plug-in part 12 to separate from the fixed plug-in part 11, and the stability and reliability in the process of collision and power-off is improved.

[0089] Exemplarily, the number of the gas storage tanks 61 is one, one gas storage tank 61 is connected with the bidirectional telescopic gas cylinder 20 through the gas pipe 63, and the control valve 62 is arranged on the gas pipe 63 between the gas storage tank 61 and the bidirectional telescopic gas cylinder 20. The control valve 62 is used for being opened after receiving the preset collision signal, so that the gas storage tank 61 inflates the bidirectional telescopic gas cylinder 20, so that the second piston rod 22 and the third piston rod 23 are extended, and the movable plug-in part 12 is driven to separate from the fixed plug-in part 11 through the connecting rod mechanism.

[0090] Exemplarily, the number of the gas storage tanks 61 is two, the number of the telescopic gas cylinders 20 is two, each of the telescopic gas cylinders 20 is a unidirectional telescopic gas cylinder 20, and the first piston rod 21 of each of the telescopic gas cylinders 20 is connected with the movable plug-in part 12 through the connecting column 42 and the connecting rod 41. The two gas storage tanks 61 respectively lead out one gas pipe 63, the gas pipes 63 of the two gas storage tanks 61 are respectively connected with two communication ports in the three-way joint 64, and the other communication port on the three-way joint 64 is respectively connected with the two telescopic gas cylinders 20 through the gas pipe 63. Specifically, the other communication port on the three-way joint 64 can be connected with one communication cavity 24 first, and the communication cavity 24 is communicated with the piston cavities of the two telescopic gas cylinders 20, so that the gas in the gas storage tank 61 flows into the communication cavity 24 first, and then flows into the piston cavities of the telescopic gas cylinders 20 from the communication cavity 24. And the three-way joint 64 is provided with a one-way valve, which can only make the gas in the gas storage tank 61 flow to the telescopic gas cylinder 20. That is, the left and right of the one-way valve plus the three-way joint 64 mainly make the high-pressure gas flowing out of the control valve 62 flow to the piston cavities of the telescopic gas cylinders 20, so as to avoid the backflow of the high-pressure gas to the control valve 62 and the gas storage tank 61 after the piston cavities are filled. By adopting the mode, even if one of the gas storage tanks 61 or the control valves 62 fails, the other gas storage tank 61 and the control valve 62 can also inflate the two telescopic gas cylinders 20, so that the two telescopic gas cylinders 20 drive the movable plug-in part 12 to separate from the fixed plug-in part 11, and the reliability and safety in the process of collision and power-off is improved.

[0091] It should be noted that the telescopic mode of the piston rod of the gas cylinder 20 is not limited to the mode of the above-mentioned gas storage tank 61 and control valve 62, and other modes can also be adopted.

[0092] For example, referring to FIGS. 1-4b, the fixed connector 11 can include a first positive terminal 111, a first negative terminal 112, and a first spare terminal 113. The movable connector 12 can include a second positive terminal 121, a second negative terminal 122, and a second spare terminal 123. When the movable connector 12 is connected with the fixed connector 11, the first positive terminal 111 is electrically connected with the second positive terminal 121, the first negative terminal 112 is electrically connected with the second negative terminal 122, and the first spare terminal 113 is electrically connected with the second spare terminal 123. The first positive terminal 111 and the first negative terminal 112 are used to electrically connect the positive and negative poles of the first battery 31, respectively. Specifically, the first positive terminal 111 is electrically connected with the positive pole of the first battery 31, and the first negative terminal 112 is electrically connected with the negative pole of the first battery 31. The second positive terminal 121 and the second negative terminal 122 are used to electrically connect the positive and negative poles of the load 33, respectively. Specifically, the second positive terminal 121 is electrically connected with the positive pole of the load 33, and the second negative terminal 122 is electrically connected with the negative pole of the load 33. For example, the number of the first spare terminal 113 and the second spare terminal 123 can be one, and the first spare terminal 113 and the second spare terminal 123 can be used as spare terminals of the negative or positive terminals. For example, the number of the first spare terminal 113 and the second spare terminal 123 can be two, and the first spare terminal 113 and the second spare terminal 123 can be used as spare terminals of the negative and positive terminals. By providing spare terminals on the two connectors, when some of the electrode terminals on the connectors fail, the spare terminals can be directly used to replace, so that the fixed connector 11 and the movable connector 12 do not need to be replaced, and the service life of the fixed connector 11 and the movable connector 12 is improved.

[0093] For example, referring to FIGS. 1-4b, the positive terminals, the negative terminals, and the spare terminals on the fixed connector 11 and the movable connector 12 described above can be high-voltage positive terminals, high-voltage negative terminals, and high-voltage spare terminals, to support electrical connection with the high-voltage first battery 31 and the load 33, so as to transmit high-voltage electricity.

[0094] As shown in FIGS. 1-4b, the crash disconnect device 100 can further include a housing 70, which houses some or all of the fixed connector 11, the movable connector 12, the mechanical disconnect mechanism, the air cylinder 20, the linkage mechanism, the air reservoir 63, the air line 63, and the control valve 62, thereby protecting the crash disconnect device 100. As shown in FIGS. 1-4b, the fixed connector 11 can be connected to a third connector 13, which has a connector head or connector interface exposed outside the housing 70, and which is specifically configured to be connected to the first battery 31 or the load 33. As shown in FIGS. 1-4b, the third connector 13 can include a third positive terminal 131, a third negative terminal 132, and a third backup terminal 133, wherein the third positive terminal 131 is connected to the first positive terminal 111, the third negative terminal 132 is connected to the first negative terminal 112, and the third backup terminal 133 is connected to the first backup terminal 113. The third positive terminal 131 is further configured to be connected to the positive terminal of the first battery 31 or the load 33, and the third negative terminal 132 is further configured to be connected to the negative terminal of the first battery 31 or the load 33.

[0095] As shown in FIGS. 1-4b, the movable connector 12 can be connected to a fourth connector 14, which has a connector head or connector interface exposed outside the housing 70, and which is specifically configured to be connected to the first battery 31 or the load 33. As shown in FIGS. 1-4b, the fourth connector 14 can include a fourth positive terminal 141, a fourth negative terminal 142, and a fourth backup terminal 143, wherein the fourth positive terminal 141 is connected to the second positive terminal 121, the fourth negative terminal 142 is connected to the second negative terminal 122, and the fourth backup terminal 143 is connected to the second backup terminal 123. As shown in FIGS. 1-4b, the fourth positive terminal 141 can be connected to the second positive terminal 121 by a wire or a conductive strip, the fourth negative terminal 142 can be connected to the second negative terminal 122 by a wire or a conductive strip, and the fourth backup terminal 143 can be connected to the second backup terminal 123 by a wire or a conductive strip. The fourth positive terminal 141 is further configured to be connected to the positive terminal of the first battery 31 or the load 33, and the fourth negative terminal 142 is further configured to be connected to the negative terminal of the first battery 31 or the load 33. As shown in FIGS. 1-4b, the third connector 13 and the fourth connector 14 can be disposed on opposite side panels of the housing 70.

[0096] As an example, referring to FIGS. 1-3b, the number of gas tanks 61 is two, and the number of telescopic cylinders 20 is two. Each telescopic cylinder 20 is a one-way telescopic cylinder 20. The first piston rod 21 of each telescopic cylinder 20 is connected to the movable plug-in piece 12 through the connecting column 42 and the connecting rod 41. Two gas tanks 61 respectively lead out a gas pipe 63. The gas pipes 63 of the two gas tanks 61 are respectively connected to two communication ports in the three-way joint 64. The other communication port in the three-way joint 64 is respectively connected to the two telescopic cylinders 20 through the gas pipe 63. A one-way valve is arranged on the three-way joint 64, which can only make the gas in the gas tank 61 flow to the telescopic cylinder 20. In this way, even if one of the gas tanks 61 or the control valve 62 fails, the other gas tank 61 and the control valve 62 can still inflate the two telescopic cylinders 20, so that the two telescopic cylinders 20 drive the movable plug-in piece 12 to separate from the fixed plug-in piece 11, thereby improving the reliability and safety during the collision power-off process.

[0097] When the anti-collision beam 35 of the vehicle collides, the collision switch sensor 34 senses the collision to generate a preset collision signal and immediately transmits the preset collision signal to the control valve 62. The control valve 62 is opened to release the compressed high-pressure gas stored in the gas tank 61. The gas pipe 63 connects the control valve 62 and the one-way three-way joint 64. The one-way three-way joint 64 mainly guides the high-pressure gas flowing out of the control valve 62 to the piston cavity of the cylinder 20, so as to avoid the backflow of the high-pressure gas to the control valve 62 and the gas tank 61 after the piston cavity is filled with the high-pressure gas.

[0098] After the piston cavity is filled with the high-pressure gas, the high-pressure gas rapidly flows into the two-sided cylinders 20 to push out the first piston rod 21. The communication between the piston cavities of the two-sided cylinders 20 ensures that when a single piston cavity or the control valve 62 fails, the other side of the standby gas tank 61 and the control valve 62 can still work, thereby ensuring the stable operation of the device. The high-pressure gas in the single gas tank 61 needs to satisfy the condition that it can fill the entire route of the gas pipe 63. All high-pressure pipelines in the gas tank 61 and the control valve 62, the cylinder 20, and the connecting rod mechanism can be replaced to ensure the maintainability of the device.

[0099] As shown in FIGS. 2a, 2b, or 4a, the connection mode of the collision power-off device 100 in the non-collision state is energized. The fixed plug-in piece 11 and the movable plug-in piece 12 are in a contact energized state. The fixed plug-in piece 11 is connected to the negative terminal, the positive terminal, and the standby terminal of the first battery 31 through the three electrode terminals on the third plug-in piece 13. Only when the movable plug-in piece 12 is separated from the fixed plug-in piece 11 by the first piston rod 21 driving the connecting rod 41, the fixed plug-in piece 11 and the movable plug-in piece 12 will be disconnected from the high-voltage line.

[0100] As shown in Fig. 3b or Fig. 4b, the connection mode of the circuit disconnecting mechanism of the collision power-off device 100 in the collision state, after the collision switch sensor 34 installed on the anti-collision beam 35 senses the collision, it will generate a preset collision signal and transmit it to the control valve 62, so that the gas tank 61 inflates the cylinder 20, so that the fixed plug 11 and the movable plug 12 are separated.

[0101] As shown in Fig. 3a, Fig. 3b or Fig. 4b, the connection mode of the circuit disconnecting mechanism of the collision power-off device 100 in the collision state, the fixed plug 11 and the movable plug 12 are in the disconnected state and cannot be powered on. The load 33 of the vehicle (other switches and other vehicle product components) has no high-voltage power supply, effectively ensuring the safety of the circuit after the collision. The use of compressed high-pressure gas in this device ensures the timeliness of the disconnected circuit, which is efficient and fast, and the compressed gas is easy to obtain, which is a sustainable energy source and has no adverse effects on other product components.

[0102] For example, referring to Fig. 4a~Fig. 4b, the number of gas tanks 61 is two, and the two gas tanks 61 are connected to the double-acting telescopic cylinder 20 through the gas pipe 63. The control valve 62 is provided on the gas pipe 63 between the gas tank 61 and the double-acting telescopic cylinder 20, and the control valve 62 is used to open after receiving the preset collision signal to inflate the double-acting telescopic cylinder 20 with the gas tank 61, so that the second piston rod 22 and the third piston rod 23 are extended, thereby driving the movable plug 12 to separate from the fixed plug 11 through the connecting rod mechanism.

[0103] Fig. 4a and Fig. 4b show another structure of the collision power-off device 100 of the application, which only needs to install a single double-acting telescopic cylinder 20 horizontally. The double-acting telescopic cylinder 20 has a second piston rod 22 and a third piston rod 23 extending from both sides. When the high-pressure gas fills the cylinder 20, the second piston rod 22 and the third piston rod 23 are extended, driving the movable plug 12 to separate from the fixed plug 11 through the scissor mechanism and the adapter rod, thereby achieving the purpose of quickly disconnecting the high-voltage circuit.

[0104] Unlike the double-acting telescopic cylinder 20 used in Fig. 1, Fig. 2b and Fig. 3b, the double-acting telescopic cylinder 20 used in Fig. 4a and Fig. 4b has a scissor-type connecting rod mechanism, and the rest of the installation structure is the same as that of Fig. 1, Fig. 2b and Fig. 3b. It should be noted that the connecting rod mechanism is not limited to the above-mentioned mode, as long as the piston rod of the cylinder 20 can be quickly driven by high-pressure gas to move, so that the movable plug 12 can be separated from the fixed plug 11, thereby disconnecting the high-voltage circuit, and any connecting rod mechanism is within the scope of this patent.

[0105] In the various embodiments shown above, by setting the mechanical power-off mechanism, and the plug-in fixed plug-in part 11 and movable plug-in part 12, one of the fixed plug-in part 11 and the movable plug-in part 12 is used for electrically connecting the first battery 31, and the other is used for electrically connecting the load 33, and the mechanical power-off mechanism is used to drive the movable plug-in part 12 to move away from the fixed plug-in part 11 after the crash power-off device 100 receives the preset crash signal, so that the movable plug-in part 12 is separated from the fixed plug-in part 11. Compared with the explosive method in the related art, the two plug-in parts are separated by the mechanical power-off mechanism, and the mechanical separation principle is used, so that it is more reliable.

[0106] In some of the above embodiments, by setting the cylinder 20 and the two plug-in plug-in parts, one of the fixed plug-in part 11 and the movable plug-in part 12 is used for electrically connecting the first battery 31 of the vehicle, and the other is used for electrically connecting the load 33 of the vehicle, and the cylinder 20 is used to drive the movable plug-in part 12 to separate from the fixed plug-in part 11 after the crash power-off device 100 receives the preset crash signal. Compared with the explosive method in the related art, the power-off structure of the two plug-in parts driven by the cylinder 20 is adopted, and the mechanical separation principle is used, so that it is more reliable.

[0107] In the related art, the high-voltage line is disconnected by TNT explosive blasting, which has the technical problems of easy burning and damage to other product components, causing secondary injury. In some embodiments of the above application, the high-pressure gas (not limited to carbon dioxide, nitrogen gas, etc.) in the gas storage tank 61 is used to inflate the cylinder 20, thereby driving the movable plug-in part 12 to separate from the fixed plug-in part 11 and disconnect the high-voltage line between the first battery 31 and the load 33. Specifically, the high-pressure gas stored in the gas storage tank 61 is connected to the control valve 62, the control valve 62 receives the preset crash signal sent by the crash switch sensor 34, the control valve 62 quickly opens, and the high-pressure gas in the gas storage tank 61 is released to the cylinder 20, thereby driving the cylinder 20 to drive the movable plug-in part 12 to separate from the fixed plug-in part 11 through the connecting rod mechanism, achieving the purpose of quickly disconnecting the high-voltage line. Compared with the related art, the high-pressure gas is not easy to cause secondary injury, and the high-voltage line is quickly and efficiently disconnected.

[0108] In the scheme of the related art, the TNT explosive is not easy to obtain and make, and the cost is high. In some other embodiments of the application, the gas in the gas storage tank 61 uses carbon dioxide or nitrogen as high-pressure gas, which is safe, easy to obtain and not easy to burn. Specifically, non-flammable gas such as carbon dioxide or nitrogen is used as high-pressure gas and stored in the gas storage tank 61. The high-pressure gas in the gas storage tank 61 is safe and not easy to burn, which is better than explosive explosion.

[0109] In some embodiments of the present application, after a collision occurs, the collision power-off device 100 is used, and then the gas storage tank 61 can be replaced or refilled with gas, so that the device can be used again. The high-pressure gas is stored in the gas storage tank 61, and the control valve 62 is connected. The gas storage tank 61 can be replaced or refilled with gas, so that the device can be used again. The high-pressure gas is easy to obtain and safe and effective, and the cost is relatively low.

[0110] In addition, the present application also provides a collision power-off system. Referring to FIGS. 1-4d, the collision power-off system includes a collision switch sensor 34 and any of the above collision power-off devices 100. The collision switch sensor 34 is used to generate a preset collision signal. The collision switch sensor 34 is connected to the collision power-off device 100 to transmit the preset collision signal to the collision power-off device 100. As for the type of collision switch sensor 34, any sensor that can detect whether the crash beam 35 has collided and generate a preset collision signal after detecting that the crash beam 35 has collided can be used. For example, the collision switch sensor 34 is arranged on the crash beam 35 of the vehicle. For example, one or more collision switch sensors 34 can be arranged on the crash beam 35.

[0111] In addition, the collision switch sensor 34 is connected to the collision power-off device 100. Specifically, in some embodiments, the collision switch sensor 34 is connected to the control valve 62 in the collision power-off device 100 to transmit the preset collision signal generated by the collision switch sensor 34 to the control valve 62, so that the gas storage tank 61 fills the cylinder 20 with gas, so that the cylinder 20 drives the movable plug 12 to move away from the fixed plug 11, so that the movable plug 12 is separated from the fixed plug 11. Specifically, referring to FIGS. 1-4d, the collision switch sensor 34 can be connected to the control valve 62 through the power supply line and the signal line 65.

[0112] For example, the collision power-off system can also include a first battery 31 and a load 33. One of the fixed plug 11 and the movable plug 12 is electrically connected to the first battery 31, and the other plug is electrically connected to the load 33. The first battery 31 can be a high-voltage power battery. Of course, in other embodiments, the first battery 31 can also be a non-high-voltage battery. The first battery 31 can be a power battery on the vehicle, or a power battery on other equipment. The load 33 described above can be a power system, a compressor, or other high-voltage loads. The load 33 can be a load on the vehicle or a load on other equipment.

[0113] Further, the application also provides a vehicle, which can include the anti-collision beam 35 and any of the above-mentioned collision power-off systems. The collision switch sensor 34 is arranged on the anti-collision beam 35. For example, the vehicle can be any vehicle with a battery, such as but not limited to an electric vehicle, a hybrid vehicle, etc. The first battery 31 can be a power battery on the vehicle, or a power battery on other equipment. The load 33 can be a high-voltage load such as a power system or a compressor on the vehicle. The anti-collision beam 35 can be any anti-collision beam on the vehicle, such as but not limited to a front anti-collision beam, a rear anti-collision beam, a side anti-collision beam, etc. When the anti-collision beam 35 is collided, the collision switch sensor 34 on the anti-collision beam 35 senses the collision and generates a preset collision signal, which is transmitted to the collision power-off device 100 to trigger the fixed connector 11 and the movable connector 12 to separate, thereby disconnecting the electrical connection between the first battery 31 and the load 33.

[0114] For example, the vehicle can also include a second battery 32, as shown in FIGS. 1-4d. The second battery 32 is electrically connected to the collision switch sensor 34 and the control valve 62 to supply power to the collision switch sensor 34 and the control valve 62. That is, two batteries are arranged on the vehicle, which are the first battery 31 and the second battery 32. The first battery 31 can be a high-voltage discharge power battery. The second battery 32 can be a low-voltage discharge storage battery on the vehicle. Specifically, the second battery 32 can be connected to the collision switch sensor 34 and the control valve 62 through the power line and the signal line 65.

[0115] The application has been described by the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for example and illustration, and are not intended to limit the application to the described embodiments. In addition, those skilled in the art can understand that the application is not limited to the above-mentioned embodiments, and more variations and modifications can be made according to the teachings of the application, which all fall within the scope of the application claimed. The scope of protection of the application is defined by the attached claims and their equivalent scope.

Claims

1. A collision power-off device (100), comprising: Fixed connector (11); A movable connector (12) is plugged into the fixed connector (11); wherein one of the fixed connector (11) and the movable connector (12) is used to electrically connect to a first battery (31), and the other connector is used to electrically connect to a load (33); and A mechanical power-off mechanism is connected to the movable connector (12) and is used to drive the movable connector (12) to generate a displacement away from the fixed connector (11) after the collision power-off device (100) receives a preset collision signal.

2. The collision power-off device (100) according to claim 1, wherein: The mechanical power-off mechanism is further used to drive the movable connector (12) to generate a displacement close to the fixed connector (11) after the collision power-off device (100) receives a preset recovery signal.

3. The collision power-off device (100) according to claim 1 or 2, wherein: The mechanical power-off mechanism comprises: A driving assembly connected to the movable connector (12); The driving assembly drives the movable connector (12) to move away from or toward the fixed connector (11).

4. The collision power-off device (100) according to claim 3, characterized in that: The driving component is connected to the movable connector (12) via a connecting component.

5. The collision power-off device (100) according to claim 4, wherein: The driving assembly includes a cylinder (20), and the connecting assembly includes a connecting rod mechanism. The cylinder (20) is connected to one end of the connecting rod mechanism, and the other end of the connecting rod mechanism is connected to the movable connector (12).

6. The collision power-off device (100) according to claim 5, wherein: The cylinder (20) comprises a telescopic cylinder having a first piston rod (21), one end of which is connected to the connecting rod mechanism.

7. The collision power-off device (100) according to claim 6, wherein: The telescopic direction of the first piston rod (21) is parallel to the plugging direction of the movable plug-in component (12).

8. The collision power-off device (100) according to claim 7, wherein: The connecting rod mechanism comprises: a connecting rod (41), one end of the connecting rod (41) being connected to the movable connector (12), and an extending direction of the connecting rod (41) being parallel to a plugging direction of the movable connector (12); and A connecting column (42) is connected between the other end of the connecting rod (41) and the first piston rod (21).

9. The collision power-off device (100) according to any one of claims 6 to 8, wherein: The number of the telescopic cylinder is at least one.

10. The collision power-off device (100) according to claim 6, wherein: The telescopic cylinder comprises a bidirectional telescopic cylinder having a coaxial second piston rod (22) and a third piston rod (23) that are synchronously telescopic, and the second piston rod (22) and the third piston rod (23) are both connected to the connecting rod mechanism.

11. The collision power-off device (100) according to claim 10, wherein: The extension and retraction directions of the second piston rod (22) and the third piston rod (23) both form an angle with the plug-in direction of the movable plug-in component (12); The connecting rod mechanism comprises a scissor-fork mechanism, a first end of the scissor-fork mechanism is connected to the second piston rod (22) and the third piston rod (23), and a second end of the scissor-fork mechanism is connected to the movable connector (12).

12. The collision power-off device (100) according to claim 11, wherein: The scissor mechanism comprises: a first scissor rod (51) and a second scissor rod (52) that are movably connected; Wherein, the first end of the first scissors rod (51) is movably connected to the second piston rod (22), and the first end of the second scissors rod (52) is movably connected to the third piston rod (23); the second end of the first scissors rod (51) is movably connected to the movable connector (12), and the second end of the second scissors rod (52) is movably connected to the movable connector (12).

13. The collision power-off device (100) according to claim 12, wherein: The connecting rod mechanism further comprises: a first transfer rod (53), wherein a first end of the first transfer rod (53) is movably connected to the movable connector (12), and a second end of the first transfer rod (53) is movably connected to the second end of the first scissor rod (51); and A second transfer rod (54), wherein a first end of the second transfer rod (54) is movably connected to the movable connector (12), and a second end of the second transfer rod (54) is movably connected to the second end of the second scissor rod (52).

14. The collision power-off device (100) according to any one of claims 5 to 13, wherein: Also includes: an air storage tank (61) connected to the air cylinder (20) via an air pipe (63); and A control valve (62) is provided between the air storage tank (61) and the cylinder (20) and is used to receive the preset collision signal and, upon receiving the preset collision signal, control the air storage tank (61) to inflate the cylinder (20) so that the cylinder (20) drives the movable connector (12) through the connecting rod mechanism to generate a displacement away from the fixed connector (11).

15. The collision power-off device (100) according to claim 14, wherein: The gas in the gas storage tank (61) is non-flammable gas.

16. The collision power-off device (100) according to claim 15, wherein: The gas in the gas storage tank (61) includes at least one of carbon dioxide, nitrogen, and inert gas.

17. The collision power-off device (100) according to claim 14, wherein: A one-way valve is provided on the air pipe (63), the air inlet of the one-way valve is connected to the air storage tank (61), and the air outlet of the one-way valve is connected to the air cylinder (20).

18. The collision power-off device (100) according to claim 14, wherein: The number of the gas storage tanks (61) is at least two; Each gas storage tank (61) is connected to the gas cylinder (20) via the gas pipe, and a control valve (62) is provided between each gas storage tank and the gas cylinder (20).

19. The collision power-off device (100) according to any one of claims 1 to 18, wherein: The fixed connector (11) includes a first positive terminal (111), a first negative terminal (112), and a first spare terminal (113); the movable connector (12) includes a second positive terminal (121), a second negative terminal (122), and a second spare terminal (123); When the movable connector (12) is plugged into the fixed connector (11), the first positive terminal (111) is electrically connected to the second positive terminal (121), the first negative terminal (112) is electrically connected to the second negative terminal (122), and the first standby terminal (113) is electrically connected to the second standby terminal (123); The first positive terminal (111) and the first negative terminal (112) are used to electrically connect the positive terminal of the first battery (31) and the negative terminal (112). The second positive terminal (121) and the second negative terminal (122) are used to electrically connect the positive electrode and the negative electrode of the load (33) respectively.

20. A collision power-off system, comprising: A collision switch sensor (34), configured to generate the preset collision signal; as well as, The collision power-off device (100) according to any one of claims 1 to 19; The collision switch sensor (34) is connected to the collision power-off device (100) to transmit the preset collision signal to the collision power-off device (100).

21. The collision power-off system according to claim 20, wherein: Also includes: a first battery (31); and load(33); One of the fixed connector (11) and the movable connector (12) is electrically connected to the first battery (31), and the other connector is electrically connected to the load (33).

22. A vehicle comprising: an anti-collision beam (35); and The collision power-off system according to any one of claims 20 to 21; Wherein, the collision switch sensor (34) is arranged on the anti-collision beam (35).

23. The vehicle of claim 22, wherein: Also includes: A second battery (32) is electrically connected to the collision switch sensor (34) and the control valve (62) to supply power to the collision switch sensor (34) and the control valve (62).

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