A vehicle, a vehicle power main switch and its control system

Abstract

This invention relates to a vehicle, a vehicle power switch, and its control system. The vehicle power switch includes a top cover and a base, which together form a cavity. A terminal block is mounted on the base. A rotating shaft is mounted on the top cover, and a contact conductor is mounted on the shaft. The shaft has a protrusion, and the inner wall of the top cover has a helical track that slides with the protrusion. The shaft has a closed working position and an open working position. An elastic element is installed between the shaft and the housing. The shaft has pneumatic blades located within the cavity. The housing has a first air inlet and a second air inlet communicating with the cavity. The first and second air inlets are used to blow air towards the pneumatic blades, with one inlet causing the air to drive the pneumatic blades to rotate forward and the other causing the air to drive the pneumatic blades to rotate in reverse, thereby switching the shaft between the closed and open working positions. This invention effectively solves the problem that existing vehicle power switches cannot achieve automatic control.

Description

Technical Field

[0001] This invention relates to a vehicle, a vehicle power switch and its control system, belonging to the field of vehicle switch technology. Background Technology

[0002] With the continuous development of the national economy and the rapid development of intelligent connectivity, autonomous driving technology has flourished. In particular, intelligent connected vehicles powered by electricity are accelerating their development and commercialization. Correspondingly, the connectivity and intelligent autonomous driving of electric buses are also accelerating their commercialization.

[0003] However, all development must be carried out within the framework of laws and regulations. According to the current national standard GB7258 "Technical Conditions for Safe Operation of Motor Vehicles," all passenger vehicles (including electric buses) with a body length greater than 6 meters must be equipped with a vehicle power master switch. The purpose is to ensure that all electrical appliances in the vehicle are de-energized when the power master switch is turned off, preventing the vehicle's main power supply from discharging. Existing vehicle power master switches include those disclosed in Chinese Utility Model Patent No. CN210296197U, with an authorization announcement date of April 10, 2020. This vehicle power master switch includes a housing and a knob. The housing includes a top cover and a base, which are fastened together to form a cavity. Two terminals with their ends located at the bottom of the cavity are installed on the base. A rotating shaft with one end inside the cavity and the other end outside the housing and fixed to the knob is rotatably mounted on the top cover. A radially inserted component is mounted on the rotating shaft. It has a positioning pin, and the inner wall of the top cover is provided with a spiral slide that slides with the positioning pin. The two ends of the slide are positioned with the ends of the positioning pin. The rotating shaft can move axially and rotate by sliding the ends of the positioning pin in the slide. A contact piece is installed on the end of the rotating shaft located in the accommodating cavity. The contact piece can contact and separate with the two terminals as the rotating shaft moves axially, thereby realizing the closing and opening of the car power main switch. In addition, a return spring is provided between the knob and the housing to realize the return of the rotating shaft.

[0004] Since the existing vehicle power switches are all manual, the power switches can only be turned on and off manually before and after using the vehicle. This results in low automation, making it difficult to achieve automated control and inconvenient to use. In particular, for autonomous vehicles, this prevents the vehicles from achieving true unmanned operation and hinders the automation process. Summary of the Invention

[0005] The purpose of this invention is to provide a vehicle power switch to solve the problem that the vehicle power switch in the prior art cannot achieve automatic control; the purpose of this invention is also to provide a control system for the vehicle power switch to achieve automatic control of the opening and closing of the vehicle power switch; the purpose of this invention is also to provide a vehicle to achieve automated operation of vehicle power-on and power-off.

[0006] To achieve the above objectives, the vehicle power main switch in this invention adopts the following technical solution:

[0007] A vehicle power switch includes a housing, comprising a top cover and a base, the top cover and base forming a receiving cavity. Two spaced-apart terminals are mounted on the base. A rotating shaft is rotatably mounted on the top cover, and a contact conductor located within the receiving cavity is mounted on the rotating shaft. The contact conductor is used to contact or separate from the two terminals to close or open the vehicle power switch. The rotating shaft has a radially extending protrusion, and the inner wall of the top cover has a helical track that slides into the protrusion. During the rotation of the rotating shaft, there are two positions: a closed working position where the protrusion slides to the lower end of the helical track and the contact conductor contacts the two terminals; and a closed working position where the protrusion slides to the upper end of the helical track and the contact conductor contacts the two terminals. The disconnected working position of the wire column separation; the vehicle power main switch also includes an elastic element installed between the shaft and the housing, the elastic element being compressed during the process of the shaft moving from the disconnected working position to the closed working position; a pneumatic blade located in the accommodating cavity is fixed on the outer wall of the shaft, and the housing is provided with a first air inlet and a second air inlet communicating with the accommodating cavity. The first air inlet and the second air inlet are used to connect to an air source to blow air toward the pneumatic blade, respectively. One of the first air inlet and the second air inlet is used to drive the pneumatic blade to rotate forward with the gas entering the accommodating cavity, and the other is used to drive the pneumatic blade to rotate in reverse with the gas entering the accommodating cavity, so that the shaft switches between the closed working position and the disconnected working position.

[0008] The beneficial effects of the above technical solution are as follows: In the vehicle power switch of the present invention, since a pneumatic blade is fixed on the rotating shaft and located in the accommodating cavity, and the housing is provided with a first air inlet and a second air inlet communicating with the accommodating cavity, when the vehicle power switch is closed or opened, air can be blown towards the pneumatic blade through the first air inlet or the second air inlet connected to the air source, causing the pneumatic blade to rotate forward or backward, and driving the rotating shaft to rotate forward or backward, thereby putting the rotating shaft in the closed working position or the open working position, realizing the closure or opening of the vehicle power switch. That is, compared with the prior art, the vehicle power switch of the present invention can be closed or opened by pneumatic drive. When it is applied to ordinary vehicles, the pneumatic drive method is conducive to realizing the automatic control of the closure or opening of the vehicle power switch, which is convenient to use. When it is applied to autonomous vehicles, the pneumatic drive method is conducive to realizing the unmanned operation of the vehicle and promoting the automation process of the vehicle.

[0009] Furthermore, the aerodynamic blade includes a long aerodynamic blade and two short aerodynamic blades. The long aerodynamic blade is located between the first air inlet and the second air inlet. The two short aerodynamic blades are located on both sides of the long aerodynamic blade in the circumferential direction. The short aerodynamic blades are driven to rotate by the gas after the long aerodynamic blade.

[0010] The beneficial effects of the above technical solution are as follows: by setting up pneumatic long blades and two pneumatic short blades, not only can the pneumatic long blades be pneumatically driven to drive the shaft to rotate, but also the pneumatic short blades can be driven to drive the shaft to rotate when the gas cannot reach the pneumatic long blades, thus ensuring the drive of the shaft to rotate. At the same time, setting up pneumatic short blades can also prevent the pneumatic blades from blocking the air inlet, ensuring the normal implementation of the pneumatic drive of the main power switch.

[0011] Furthermore, the vehicle power switch also includes two long isolation blades fixed on the outer wall of the rotating shaft and located in the accommodating cavity. The two long isolation blades, together with the pneumatic long blades and the housing, form a closed air chamber and a disconnected air chamber, respectively. The two short pneumatic blades are located between the two long isolation blades and the pneumatic long blades, respectively. The first air inlet is provided on the housing corresponding to the closed air chamber, and the second air inlet is provided on the housing corresponding to the disconnected air chamber.

[0012] The beneficial effects of the above technical solution are as follows: by using the closed air chamber and the open air chamber formed by the two isolated long blades and the pneumatic long blades, excessive gas loss when the gas pushes the pneumatic blades can be avoided, which is conducive to increasing the gas pressure that pushes the pneumatic blades and ensuring the normal operation of the gas drive of the vehicle's main power switch.

[0013] Furthermore, the pneumatic blade includes a pneumatic long blade, and the vehicle power switch also includes two isolation long blades fixed on the outer wall of the rotating shaft and located in the accommodating cavity. The two isolation long blades, together with the pneumatic long blade and the housing, form a closed air chamber and a disconnected air chamber, respectively. The first air inlet is provided on the housing corresponding to the closed air chamber, and the second air inlet is provided on the housing corresponding to the disconnected air chamber.

[0014] The beneficial effects of the above technical solution are as follows: it can drive the shaft to rotate forward or backward by gas-driven pneumatic long blades, and at the same time, it can increase the gas pressure driving the pneumatic blades by isolating the long blades and the closed air chamber formed by the pneumatic long blades and opening the air chamber, thus ensuring the driving of the pneumatic blades.

[0015] Furthermore, the included angle between the aerodynamic long blade and the two aerodynamic short blades is equal.

[0016] The beneficial effect of the above technical solution is that when the shaft is driven to rotate forward or backward by blowing two pneumatic short blades, the shaft can have the same driving force in both directions, ensuring that the shaft has the same rotation effect in both directions, and thus ensuring the normal operation of the vehicle's main power switch.

[0017] Furthermore, a top plate is fixedly provided on the circumferential outer wall of the rotating shaft, and the bottom surface of the top plate is fixedly connected to the top surface of the aerodynamic long blade and the two isolating long blades.

[0018] The beneficial effects of the above technical solution are as follows: by setting the top plate, the upward flow of gas can be blocked, which is conducive to further increasing the gas pressure when pushing the pneumatic long blades, that is, it can further ensure the normal operation of the pneumatic closing or opening of the main power switch. In addition, the top plate can also enhance the structural strength between the blades, which is conducive to further ensuring the normal operation of the vehicle's main power switch.

[0019] Furthermore, the elastic element is disposed between the bottom of the rotating shaft and the base.

[0020] The beneficial effects of the above technical solution are as follows: when the rotating shaft is in the disconnected working position, the elastic force of the elastic element can keep the rotating shaft in the disconnected working position, preventing the rotating shaft from moving downward along the axis to the closed working position. In addition, the elastic element also provides upward assistance for the rotating shaft to leave the closed working position, which facilitates the movement of the rotating shaft to the disconnected working position.

[0021] To achieve the above objectives, the control system for the vehicle's main power switch in this invention adopts the following technical solution:

[0022] A control system for a vehicle power master switch includes an air reservoir, a first air intake line, and a second air intake line. The first air intake line connects the air reservoir to the first air intake port of the vehicle power master switch, and the second air intake line connects the air reservoir to the second air intake port of the vehicle power master switch. Solenoid valves for controlling the on / off state of the corresponding lines are connected to the first and second air intake lines, respectively. The control system also includes a self-powered control device connected to the two solenoid valves. The control device receives signals for closing or opening the power master switch and controls the two solenoid valves to open or close, allowing gas to enter the accommodating cavity of the vehicle power master switch via the first air intake line and the first air intake port or the second air intake line and the second air intake port. This gas blows the pneumatic blades of the vehicle power master switch, causing them to rotate forward or backward, and drives the rotating shaft to switch between a closed and open working position.

[0023] The beneficial effects of the above technical solution are as follows: In the control system of the vehicle power switch of the present invention, since the control device can be used to receive control signals for opening or closing the power switch, and since the control device with its own power supply is connected to two solenoid valves on the first and second intake pipes respectively, after receiving the relevant control signals, the control device can control the opening or closing of the first and second intake pipes by controlling the opening or closing of the two solenoid valves, and thereby control the gas to drive the pneumatic blades to rotate forward or backward, driving the rotating shaft to switch between the closed and open working positions, thus realizing the automatic control of the vehicle power switch opening or closing; for ordinary vehicles, the automatic control of the vehicle power switch further facilitates the use of the vehicle power switch; for autonomous vehicles, the automatic control of the vehicle power switch realizes true unmanned operation of the vehicle, promoting the automation process of the vehicle.

[0024] Furthermore, the solenoid valve is a two-position three-way solenoid valve with three ports. Two of the three ports are connected to the first or second air inlet line to form the air inlet working position of the solenoid valve, and the remaining port is connected to the vent line to form the vent working position of the solenoid valve.

[0025] The beneficial effects of the above technical solution are as follows: it can control the closing or opening of the vehicle's main power switch through two interfaces, and at the same time, it can also release the gas in the main power switch through another interface to reduce the gas pressure in the vehicle's main power switch and prevent the gas pressure from preventing the main power switch from closing or opening again.

[0026] To achieve the above objectives, the vehicle in this invention adopts the following technical solution:

[0027] A vehicle includes a main power supply, vehicle electrical systems, and a vehicle main power switch connected between the two. The vehicle main power switch includes a housing, which includes a top cover and a base. The top cover and base form a receiving cavity. Two spaced-apart terminals are mounted on the base. A rotating shaft is rotatably mounted on the top cover. A contact conductor located within the receiving cavity is mounted on the rotating shaft. The contact conductor is used to contact or separate from the two terminals to close or open the vehicle main power switch. The rotating shaft has a radially extending protrusion, and the inner wall of the top cover has a helical slide that slides with the protrusion. The rotation of the rotating shaft... The circuit includes a closed working position where the protrusion slides to the bottom of the spiral track and the contact conductor contacts the two terminals, and a disconnected working position where the protrusion slides to the top of the spiral track and the contact conductor separates from the two terminals. The vehicle power switch also includes an elastic element installed between the shaft and the housing, which is compressed during the shaft's movement from the disconnected to the closed position. A pneumatic blade located within a accommodating cavity is fixed to the outer wall of the shaft. The housing has a first air inlet and a second air inlet communicating with the accommodating cavity. The first and second air inlets are used to connect to an air source for separate... Air is blown towards the pneumatic blades. One of the first and second air inlets is used to cause the gas entering the accommodating cavity to drive the pneumatic blades to rotate forward, and the other is used to cause the gas entering the accommodating cavity to drive the pneumatic blades to rotate in reverse, so that the rotating shaft switches between a closed working position and an open working position. The vehicle also includes a control system for the vehicle's main power switch. This control system includes an air tank, a first air inlet line, and a second air inlet line. The first air inlet line is connected between the air tank and the first air inlet of the vehicle's main power switch, and the second air inlet line is connected between the air tank and the second air inlet of the vehicle's main power switch. Between them, the first and second air intake lines are respectively connected to solenoid valves for controlling the opening and closing of the corresponding lines; the control system also includes a control device with its own power supply, which is connected to the two solenoid valves. The control device is used to receive signals for closing or opening the main power switch, and to control the two solenoid valves to open or close respectively, so that gas enters the housing of the vehicle's main power switch through the first air intake line and the first air inlet or the second air intake line and the second air inlet, blowing the pneumatic blades of the vehicle's main power switch to rotate forward or backward, and driving the rotating shaft to switch between the closed working position and the open working position.

[0028] The beneficial effects of the above technical solution are as follows: In the vehicle of the present invention, since the control device can be used to receive control signals for opening or closing the main power switch, and since the control device with its own power supply is connected to two solenoid valves on the first intake pipe and the second intake pipe respectively, after receiving the relevant control signals, the control device can control the opening or closing of the first intake pipe and the second intake pipe by controlling the opening or closing of the two solenoid valves, and thereby control the gas to drive the pneumatic blades to rotate forward or backward, driving the rotating shaft to switch between the closed working position and the open working position, realizing the automated control of the vehicle's main power switch to open or close. Furthermore, since the vehicle's main power switch is connected between the main power supply and the vehicle's electrical system, the main power supply can also realize the automated control of the vehicle's electrical system to power on or off, facilitating the operation of powering on and off the vehicle, which is conducive to realizing unmanned operation of the vehicle and promoting the automation process of the vehicle.

[0029] Furthermore, the aerodynamic blade includes a long aerodynamic blade and two short aerodynamic blades. The long aerodynamic blade is located between the first air inlet and the second air inlet. The two short aerodynamic blades are located on both sides of the long aerodynamic blade in the circumferential direction. The short aerodynamic blades are driven to rotate by the gas after the long aerodynamic blade.

[0030] The beneficial effects of the above technical solution are as follows: by setting up pneumatic long blades and two pneumatic short blades, not only can the pneumatic long blades be pneumatically driven to drive the shaft to rotate, but also the pneumatic short blades can be driven to drive the shaft to rotate when the gas cannot reach the pneumatic long blades, thus ensuring the drive of the shaft to rotate. At the same time, setting up pneumatic short blades can also prevent the pneumatic blades from blocking the air inlet, ensuring the normal implementation of the pneumatic drive of the main power switch.

[0031] Furthermore, the vehicle power switch also includes two long isolation blades fixed on the outer wall of the rotating shaft and located in the accommodating cavity. The two long isolation blades, together with the pneumatic long blades and the housing, form a closed air chamber and a disconnected air chamber, respectively. The two short pneumatic blades are located between the two long isolation blades and the pneumatic long blades, respectively. The first air inlet is provided on the housing corresponding to the closed air chamber, and the second air inlet is provided on the housing corresponding to the disconnected air chamber.

[0032] The beneficial effects of the above technical solution are as follows: by using the closed air chamber and the open air chamber formed by the two isolated long blades and the pneumatic long blades, excessive gas loss when the gas pushes the pneumatic blades can be avoided, which is conducive to increasing the gas pressure that pushes the pneumatic blades and ensuring the normal operation of the gas drive of the vehicle's main power switch.

[0033] Furthermore, the pneumatic blade includes a pneumatic long blade, and the vehicle power switch also includes two isolation long blades fixed on the outer wall of the rotating shaft and located in the accommodating cavity. The two isolation long blades, together with the pneumatic long blade and the housing, form a closed air chamber and a disconnected air chamber, respectively. The first air inlet is provided on the housing corresponding to the closed air chamber, and the second air inlet is provided on the housing corresponding to the disconnected air chamber.

[0034] The beneficial effects of the above technical solution are as follows: it can drive the shaft to rotate forward or backward by gas-driven pneumatic long blades, and at the same time, it can increase the gas pressure driving the pneumatic blades by isolating the long blades and the closed air chamber formed by the pneumatic long blades and opening the air chamber, thus ensuring the driving of the pneumatic blades.

[0035] Furthermore, the included angle between the aerodynamic long blade and the two aerodynamic short blades is equal.

[0036] The beneficial effect of the above technical solution is that when the shaft is driven to rotate forward or backward by blowing two pneumatic short blades, the shaft can have the same driving force in both directions, ensuring that the shaft has the same rotation effect in both directions, and thus ensuring the normal operation of the vehicle's main power switch.

[0037] Furthermore, a top plate is fixedly provided on the circumferential outer wall of the rotating shaft, and the bottom surface of the top plate is fixedly connected to the top surface of the aerodynamic long blade and the two isolating long blades.

[0038] The beneficial effects of the above technical solution are as follows: by setting the top plate, the upward flow of gas can be blocked, which is conducive to further increasing the gas pressure when pushing the pneumatic long blades, that is, it can further ensure the normal operation of the pneumatic closing or opening of the main power switch. In addition, the top plate can also enhance the structural strength between the blades, which is conducive to further ensuring the normal operation of the vehicle's main power switch.

[0039] Furthermore, the elastic element is disposed between the bottom of the rotating shaft and the base.

[0040] The beneficial effects of the above technical solution are as follows: when the rotating shaft is in the disconnected working position, the elastic force of the elastic element can keep the rotating shaft in the disconnected working position, preventing the rotating shaft from moving downward along the axis to the closed working position. In addition, the elastic element also provides upward assistance for the rotating shaft to leave the closed working position, which facilitates the movement of the rotating shaft to the disconnected working position.

[0041] Furthermore, the solenoid valve is a two-position three-way solenoid valve with three ports. Two of the three ports are connected to the first or second air inlet line to form the air inlet working position of the solenoid valve, and the remaining port is connected to the vent line to form the vent working position of the solenoid valve.

[0042] The beneficial effects of the above technical solution are as follows: it can control the closing or opening of the vehicle's main power switch through two interfaces, and at the same time, it can also release the gas in the main power switch through another interface to reduce the gas pressure in the vehicle's main power switch and prevent the gas pressure from preventing the main power switch from closing or opening again. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the control system for the vehicle's main power switch in this invention;

[0044] Figure 2 This is a perspective view of the vehicle power main switch in this invention;

[0045] Figure 3 This is a cross-sectional view of the vehicle power main switch in this invention;

[0046] Figure 4 This is a diagram showing the positional relationship between the blades and the air intake when the vehicle's main power switch is in the off state.

[0047] Figure 5 This is a diagram showing the positional relationship between the blades and the air intake when the vehicle's main power switch is in the closed state.

[0048] In the diagram: 10. Top cover; 11. Spiral slide; 12. First air inlet; 13. Second air inlet; 20. Rotating shaft; 30. Knob; 40. Positioning pin; 50. Pneumatic long blade; 60. First pneumatic short blade; 70. Second pneumatic short blade; 80. First isolating long blade; 90. Second isolating long blade; 100. Top plate; 110. Contact piece; 120. Spring; 130. Base; 131. Rectangular groove; 140. Terminal; 15. 0. Main power supply; 160. Vehicle main power switch; 161. Containing cavity; 170. Electrical system of the whole vehicle; 180. Air tank; 190. First air intake line; 200. Second air intake line; 210. First solenoid valve; 211. First interface; 212. Second interface; 213. Third interface; 220. Second solenoid valve; 221. Fourth interface; 222. Fifth interface; 223. Sixth interface; 230. Control device; 240. Air outlet line. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0050] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0051] It should be noted that, in specific embodiments of the present invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. Furthermore, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the use of phrases such as "comprising a…" to define an element does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0052] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0053] In the description of this invention, unless otherwise explicitly specified and limited, the term "provided with" should be interpreted broadly. For example, the object "provided with" can be a part of the body, or it can be separately arranged from the body and connected to the body. This connection can be a detachable connection or a non-detachable connection. Those skilled in the art can understand the specific meaning of the above terms in this invention through specific circumstances.

[0054] The present invention will be further described in detail below with reference to embodiments.

[0055] Embodiment 1 of the vehicle in this invention:

[0056] like Figure 1As shown, the vehicle includes a main power supply 150, vehicle electrical components 170, and a main vehicle power switch 160 connected between the two. The vehicle also includes a control system for controlling the opening and closing of the main vehicle power switch 160. In this embodiment, the main vehicle power switch 160 is used in an autonomous vehicle, meaning the vehicle is an autonomous vehicle.

[0057] like Figure 2 and Figure 3 As shown, the vehicle power main switch 160 includes a housing, which includes an upper cover 10 and a base 130 fixedly connected by welding. The upper cover 10 and the base 130 form a receiving cavity 161, which is a cylindrical cavity. A rotating shaft 20 is rotatably mounted on the upper cover 10. The axis of the rotating shaft 20 is defined as the vertical direction. One end of the rotating shaft 20 extends downward into the receiving cavity 161, and the other end extends upward out of the housing. A knob 30 is fixedly connected to the rotating shaft 20, which can drive the rotating shaft 20 to rotate.

[0058] like Figure 3 As shown, a positioning pin 40 is radially inserted into the rotating shaft 20. Both ends of the positioning pin 40 protrude from the side wall of the rotating shaft 20 and form protrusions on the side wall of the rotating shaft 20. The inner wall of the upper cover 10 is provided with a spiral slide 11 that slides with the ends of the positioning pin 40. The spiral slide 11 is prior art and will not be described in detail here. Specifically, it is like the slide in the car power switch disclosed in Chinese utility model patent with authorization announcement number CN210296197U and authorization announcement date of 2020.04.10, and the threaded structure in a battery switch disclosed with application publication number CN103854911 and application publication date of 2014.06.11. By sliding the end of the positioning pin 40 within the spiral slide 11 and engaging with the uppermost and lowermost ends of the spiral slide 11, the rotating shaft 20 can rotate 90°. Furthermore, by sliding the two ends of the positioning pin 40 within the spiral slide 11, the rotating shaft 20 can also move a certain distance along its axial direction.

[0059] like Figure 3 As shown, the lower end of the rotating shaft 20 is provided with a downwardly extending section, on which a contact conductor is rotatably mounted. In this embodiment, the contact conductor is a rectangular contact piece 110. The top surface of the base 130 is provided with a rectangular groove 131 that matches the shape of the contact piece 110, and the contact piece 110 is always located in the rectangular groove 131. Thus, when the rotating shaft 20 rotates and moves axially, the contact piece 110 can be stopped by the rectangular groove 131, so that the contact piece 110 can only move up and down with the rotating shaft 20, but not rotate with the rotating shaft 20.

[0060] like Figure 2 and Figure 3As shown, two spaced-apart, vertically extending terminals 140 are mounted on the base 130. One end of each terminal 140 extends upward into the rectangular groove 131, and the other end extends downward out of the housing. One of the two terminals 140 is connected to the positive terminal of the main power supply 150 via a cable, and the other is connected to the vehicle's electrical components 170 via a cable. As the shaft 20 rotates, when one end of the positioning pin 40 slides to the lower end of the spiral slide 11, the bottom surface of the contact piece 110 contacts the upper end face of the two terminals 140, the vehicle's main power switch 160 closes, and the main power supply 150 can supply power to the vehicle's electrical components 170. At this time, the shaft 20 is in the closed working position. When one end of the positioning pin 40 slides to the uppermost part of the spiral slide 11, the bottom surface of the contact piece 110 separates from the upper end face of the two terminals 140, the vehicle's main power switch 160 opens, and the vehicle's electrical components 170 are de-energized. At this time, the shaft 20 is in the open working position.

[0061] like Figure 3 As shown, an elastic element is fixedly connected to the bottom of the extension section. In this embodiment, the elastic element is a spring 120. The spring 120 is located between the bottom of the extension section and the bottom of the rectangular groove 131 within the rectangular groove 131. The spring 120 is a compression spring, meaning it is always in a compressed state. Thus, when the vehicle power switch 160 is closed or opened, the upward force of the spring 120 indirectly causes the two ends of the positioning pin 40 to press upward against the uppermost or lowermost end of the slide rail, respectively. This ensures that the positioning pin 40 is stopped at the corresponding end of the spiral slide rail 11, preventing slippage between the two ends of the positioning pin 40 and the spiral slide rail 11, and ensuring the closed or open state of the vehicle power switch 160. Furthermore, when it is necessary to disconnect the vehicle power switch 160 and rotate the shaft 20, the upward force of the spring 120 facilitates the upward rotation and reset of the shaft 20.

[0062] like Figure 3 As shown, pneumatic blades located within the accommodating cavity 161 are also fixed to the outer wall of the rotating shaft 20. These pneumatic blades are positioned above the contact piece 110 on the rotating shaft 20. Figure 4 and Figure 5As shown, the aerodynamic blade includes a long aerodynamic blade 50 and a short aerodynamic blade. There is one long aerodynamic blade 50 and two short aerodynamic blades, namely a first short aerodynamic blade 60 and a second short aerodynamic blade 70. The first short aerodynamic blade 60 and the second short aerodynamic blade 70 are positioned circumferentially on both sides of the long aerodynamic blade 50, and the included angle between them is the same, 45°. A first isolating long aerodynamic blade 80 and a second isolating long aerodynamic blade 90 are also fixed on the outer wall of the rotating shaft 20, located within the accommodating cavity 161. The included angle between the first isolating long aerodynamic blade 80 and the second isolating long aerodynamic blade 90 is 90°. The first short aerodynamic blade 60 is located between the first isolating long aerodynamic blade 80 and the long aerodynamic blade 50, with the included angle between the first short aerodynamic blade 80 and the first short aerodynamic blade 60 being 90° and the included angle between the first short aerodynamic blade 80 and the long aerodynamic blade 50 being 135°. The second aerodynamic short blade 70 is located between the second isolating long blade 90 and the aerodynamic long blade 50. The angle between the second isolating long blade 90 and the second aerodynamic short blade 70 is 90°, and the angle between the second isolating long blade 90 and the aerodynamic long blade 50 is 135°. Additionally, as... Figure 3 As shown, a top plate 100 located in the accommodating cavity 161 is also fixed on the circumferential outer wall of the rotating shaft 20. The top plate 100 is a circular plate adapted to the shape of the accommodating cavity 161, and the bottom surface of the top plate 100 is fixedly connected to each blade.

[0063] like Figure 2 , Figure 3 , Figure 4 as well as Figure 5As shown, the side wall of the upper cover 10 is provided with a first air inlet 12 and a second air inlet 13 that communicate with the accommodating cavity 161. The control system includes an air tank 180, on which an air outlet line 240 is provided. The air outlet line 240 is connected to the first air inlet 12 by a first air inlet line 190, and to the second air inlet 13 by a second air inlet line 200. Thus, the air tank 180 can deliver high-pressure gas into the accommodating cavity 161 through the first air inlet line 190 or the second air inlet line 200, and blow the pneumatic blades to rotate forward or backward. Specifically, the pneumatic long blade 50 is located circumferentially between the first air inlet 12 and the second air inlet 13, and both the first air inlet 12 and the second air inlet 13 are oriented towards the pneumatic long blade 50. When the vehicle power switch 160 is in the off state, high-pressure gas can be delivered into the accommodating cavity 161 through the first air inlet 12. The high-pressure gas will blow the pneumatic long blade 50 to rotate forward and drive the rotating shaft 20 to rotate forward. During the rotation of the rotating shaft 20, the pneumatic long blade 50 gradually approaches the second air inlet 13. When the high-pressure gas blown in from the first air inlet 12 cannot reach the pneumatic long blade 50, the high-pressure gas can drive the rotating shaft 20 to rotate forward to the closed working position by blowing the first pneumatic short blade 60, so as to realize the closure of the vehicle power switch 160. When the vehicle's main power switch 160 is closed, high-pressure gas can be supplied to the accommodating cavity 161 through the second air inlet 13. The high-pressure gas will cause the pneumatic long blade 50 to reverse, and drive the rotating shaft 20 to reverse as well. During the rotation of the rotating shaft 20, the pneumatic long blade 50 gradually approaches the first air inlet 12. When the high-pressure gas blown in from the second air inlet 13 can no longer reach the pneumatic long blade 50, the high-pressure gas can drive the rotating shaft 20 to reverse to the off position by blowing the second pneumatic short blade 70, thereby disconnecting the vehicle's main power switch. In summary, the pneumatic long blade 50 is the main pneumatic blade, and the first pneumatic short blade 60 and the second pneumatic short blade 70 are auxiliary pneumatic blades. They are used to push the pneumatic long blade 50 by gas after it is pushed to a set angle, and blow air towards the pneumatic blades in different directions through the first air inlet 12 and the second air inlet 13, respectively, so as to realize the switching of the rotating shaft 20 between the closed and open working positions.

[0064] like Figure 4 and Figure 5 As shown, the first isolation long blade 80 and the second isolation long blade 90, together with the aforementioned housing, the pneumatic long blade 50 and the top plate 100, form a closed air chamber and a disconnected air chamber, respectively. The first air inlet 12 is provided on the housing corresponding to the closed air chamber, and the second air inlet 13 is provided on the housing corresponding to the disconnected air chamber. In this way, by using the closed air chamber and the disconnected air chamber, excessive gas loss when driving the pneumatic blade can be avoided, which is conducive to increasing the gas pressure driving the pneumatic blade and ensuring the normal operation of the gas-driven vehicle power switch 160.

[0065] like Figure 1As shown, a first solenoid valve 210 is connected to the first intake line 190 to control the on / off of air supply to the first intake line 190, and a second solenoid valve 220 is connected to the second intake line 200 to control the on / off of air supply to the second intake line 200. Both the first solenoid valve 210 and the second solenoid valve 220 are two-position three-way solenoid valves, meaning that both the first solenoid valve 210 and the second solenoid valve 220 have three ports. The three ports of the first solenoid valve 210 are a first port 211, a second port 212, and a third port 213. The first port 211 and the second port 212 are connected to the first intake line 190, and the third port 213 is connected to a vent line. When the first interface 211 and the second interface 212 are connected, high-pressure gas can be supplied to the first air inlet 12, forming the air intake working position of the first solenoid valve 210; when the first interface 211 and the third interface 213 are connected, the high-pressure gas in the accommodating cavity 161 can be discharged to the atmosphere, forming the venting working position of the first solenoid valve 210. The three interfaces of the second solenoid valve 220 are the fourth interface 221, the fifth interface 222 and the sixth interface 223. The fourth interface 221 and the fifth interface 222 are connected to the second air inlet pipeline 200, and the sixth interface 223 is connected to the venting pipeline. When the fourth interface 221 and the fifth interface 222 are connected, high-pressure gas can be supplied to the second air inlet 13, forming the air intake working position of the second solenoid valve 220; when the fourth interface 221 and the sixth interface 223 are connected, the high-pressure gas in the accommodating cavity 161 can be discharged to the atmosphere, forming the venting working position of the second solenoid valve 220.

[0066] The aforementioned control system also includes a control device 230, which is a network terminal with its own power supply. This power supply ensures the uploading of monitoring data and the receipt of control commands from the backend. The power supply of the network terminal is connected to the first solenoid valve 210 and the second solenoid valve 220 via cables. Thus, when the network terminal receives a signal command from the backend to open or close the vehicle's main power switch 160, it can control the opening and closing of the first solenoid valve 210 and the second solenoid valve 220 using its own power supply, thereby opening or closing the vehicle's main power switch 160. Furthermore, the network terminal is connected downstream of the vehicle's main power switch 160 via a cable to the positive terminal of the main power supply 150. This allows the control device 230 to detect whether the vehicle's main power switch 160 has been successfully closed or opened.

[0067] The working principle of the vehicle power main switch control system in this invention is as follows:

[0068] When the vehicle power main switch 160 is in the off state and needs to be closed, the background sends a closing command to the control device 230. The control device 230 outputs a control signal and controls the first interface 211 and the second interface 212 of the first solenoid valve 210 to be open, and the second interface 212 and the second solenoid valve 220 to be closed. At this time, the high-pressure gas in the air tank 180 can be delivered to the first air inlet 12 through the first air inlet pipeline 190. The high-pressure gas drives the pneumatic long blade 50 and the first pneumatic short blade 60 to drive the rotating shaft 20 to rotate 90° clockwise to the closed working position and lock it. The vehicle power main switch 160 is closed. At this time, the control device 230 will receive power from the main power supply 150. When the control device 230 detects the power supply from the main power supply 150, it determines that the power-on is successful, realizing the remote control of the vehicle power main switch 160 closing operation. After successful power-on, the first interface 211 and the third interface 213 are connected, and the second interface 212 is closed to release the gas in the accommodating cavity 161. The purpose is that a person can manually rotate the knob 30 to disconnect the vehicle's main power switch 160.

[0069] When the vehicle power main switch 160 needs to be disconnected, the background sends a disconnect command to the control device 230. The control device 230 outputs a control signal and controls the first solenoid valve 210 to close, the fourth interface 221 and the fifth interface 222 of the second solenoid valve 220 to open, and the sixth interface 223 to close. At this time, the high-pressure gas in the air tank 180 can be delivered to the second air inlet 13 through the second air inlet pipeline 200. The high-pressure gas drives the pneumatic long blade 50 and the second pneumatic short blade 70 to drive the rotating shaft 20 to rotate 90° to the disconnect working position and lock it. The vehicle power main switch 160 is disconnected. At this time, the control device 230 does not receive power from the main power supply 150. When the control device 230 does not detect the power supply from the main power supply 150, it determines that the power-off is successful, thus realizing the remote control of disconnecting the vehicle power main switch 160. After the power is successfully turned off, the fourth interface 221 and the sixth interface 223 are connected, and the fifth interface 222 is closed to release the gas in the accommodating cavity 161. The purpose is that a person can manually rotate the knob 30 to close the vehicle's main power switch 160.

[0070] In addition, it should be noted that the vehicle power main switch 160 can be used not only for autonomous vehicles, but also for ordinary vehicles to realize automated control of power-on or power-off of ordinary vehicles.

[0071] In the vehicle of this invention, since the control device can be used to receive control signals for opening or closing the main power switch, and since the control device with its own power supply is connected to two solenoid valves on the first and second intake pipes respectively, after receiving the relevant control signals, the control device can control the opening or closing of the first and second intake pipes by controlling the opening or closing of the two solenoid valves, and thereby control the gas to drive the pneumatic blades to rotate forward or backward, driving the rotating shaft to switch between the closed and open working positions, realizing automated control of the vehicle's main power switch opening or closing. Furthermore, since the vehicle's main power switch is connected between the main power supply and the vehicle's electrical system, it can also realize automated control of the main power supply to power on or off the vehicle's electrical system, facilitating the vehicle's power-on and power-off operations, which is conducive to realizing unmanned vehicle operation and promoting the automation process of the vehicle.

[0072] Embodiment 2 of the vehicle in this invention:

[0073] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the outer wall of the rotating shaft is provided with one long aerodynamic blade, two short aerodynamic blades, and two isolation blades located within the accommodating cavity. In this embodiment, the outer wall of the rotating shaft is provided with one long aerodynamic blade and two short aerodynamic blades located within the accommodating cavity.

[0074] Embodiment 3 of the vehicle in this invention:

[0075] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the outer wall of the rotating shaft is provided with one long aerodynamic blade, two short aerodynamic blades, and two isolation blades located within the accommodating cavity. In this embodiment, the outer wall of the rotating shaft is provided with one long aerodynamic blade and two isolation blades located within the accommodating cavity.

[0076] Embodiment 4 of the vehicle in this invention:

[0077] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the outer wall of the rotating shaft is provided with one long aerodynamic blade, two short aerodynamic blades, and two isolation blades located within the accommodating cavity. In this embodiment, the outer wall of the rotating shaft is provided with only one long aerodynamic blade located within the accommodating cavity.

[0078] Embodiment 5 of the vehicle in this invention:

[0079] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, a top plate is fixedly located above and connected to each blade on the circumferential outer wall of the rotating shaft, which can block the upward flow of gas in the containment cavity. In this embodiment, however, there is no top plate located above and fixedly connected to each blade. In this case, the upward flow of gas in the containment cavity is mainly blocked by the shell.

[0080] Embodiment 6 of the vehicle in this invention:

[0081] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the included angles between the long aerodynamic blade and the two short aerodynamic blades are equal. However, in this embodiment, the included angles between the long aerodynamic blade and the two short aerodynamic blades are not equal.

[0082] Embodiment 7 of the vehicle in this invention:

[0083] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the elastic element is installed between the bottom of the rotating shaft and the base. In this embodiment, the elastic element is sleeved on the rotating shaft and located between the rotating shaft and the top cover.

[0084] Embodiment 8 of the vehicle in this invention:

[0085] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the elastic element is a spring, while in this embodiment, the elastic element is an elastic rubber ring. In other embodiments, it can also be an elastic washer.

[0086] Embodiment 9 of the vehicle in this invention:

[0087] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the protrusion is formed by the two ends of a locating pin that is radially mounted on the rotating shaft. In this embodiment, the protrusion is a protrusion provided on the outer wall of the rotating shaft.

[0088] Embodiment 10 of the vehicle in this invention:

[0089] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, a knob is fixed at the upper end of the rotating shaft outside the housing, and the rotating shaft can be driven to rotate by the knob. In this embodiment, the vehicle power switch also includes a handle. The upper end face of the rotating shaft is provided with a groove for inserting the handle and engaging with the handle to prevent rotation. When manually operating the vehicle power switch, the rotating shaft can be driven to rotate by inserting the handle, thereby turning the vehicle power switch on or off.

[0090] Embodiment 11 of the vehicle in this invention:

[0091] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, there is one air tank, which is connected to the first air inlet pipeline and the second connecting pipeline. In this embodiment, there are two air tanks, which are connected to the first air inlet pipeline and the second connecting pipeline, respectively.

[0092] Embodiment 12 of the vehicle in this invention:

[0093] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the solenoid valve is a two-position three-way solenoid valve, while in this embodiment, the solenoid valve is a two-position two-way solenoid valve.

[0094] An embodiment of the vehicle power switch in this invention: The specific structure of the vehicle power switch is the same as that of the vehicle power switch in the above vehicle embodiment, and will not be described in detail here.

[0095] An embodiment of the vehicle power switch control system in this invention: The specific structure of the vehicle power switch control system is the same as that of the vehicle power switch control system in the above vehicle embodiment, and will not be described in detail here.

[0096] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the scope of protection of the present invention.

Claims

1. A vehicle power switch, comprising a housing, the housing including a top cover (10) and a base (130), the top cover (10) and the base (130) forming a receiving cavity (161), two spaced-apart terminals (140) mounted on the base (130); a rotating shaft (20) rotatably mounted on the top cover (10), a contact conductor located in the receiving cavity (161) mounted on the rotating shaft (20), the contact conductor being used to contact or separate from the two terminals (140) to realize the closing or opening of the vehicle power switch (160); a radially extending protrusion is provided on the rotating shaft (20). The inner wall of the cover (10) is provided with a spiral slide (11) that slides with the protrusion. During the rotation stroke of the rotating shaft (20), there is a closed working position where the protrusion slides to the lower end of the spiral slide (11) and the contact conductor contacts the two terminals (140), and an open working position where the protrusion slides to the upper end of the spiral slide (11) and the contact conductor separates from the two terminals (140). The vehicle power switch also includes an elastic element installed between the rotating shaft (20) and the housing. The elastic element is used to be compressed during the process of the rotating shaft (20) moving from the open working position to the closed working position. A pneumatic blade located in the accommodating cavity (161) is fixed on the outer wall of the rotating shaft (20). The housing is provided with a first air inlet (12) and a second air inlet (13) communicating with the accommodating cavity (161). The first air inlet (12) and the second air inlet (13) are used to connect to an air source to blow air toward the pneumatic blade respectively. One of the first air inlet (12) and the second air inlet (13) is used to make the gas entering the accommodating cavity (161) drive the pneumatic blade to rotate forward, and the other is used to make the gas entering the accommodating cavity (161) drive the pneumatic blade to rotate in reverse, so that the rotating shaft (20) switches between the closed working position and the open working position.

2. The vehicle power main switch according to claim 1, characterized in that, The aerodynamic blade includes a long aerodynamic blade (50) and two short aerodynamic blades. The long aerodynamic blade (50) is located between the first air inlet (12) and the second air inlet (13). The two short aerodynamic blades are located on both sides of the long aerodynamic blade (50) in the circumferential direction. The short aerodynamic blades are driven to rotate by gas after the long aerodynamic blade (50).

3. The vehicle power main switch according to claim 2, characterized in that, The vehicle power switch (160) also includes two isolation long blades fixed on the outer wall of the rotating shaft (20) and located in the accommodating cavity (161). The two isolation long blades, together with the pneumatic long blade (50) and the housing, form a closed air chamber and a disconnected air chamber, respectively. The two pneumatic short blades are located between the two isolation long blades and the pneumatic long blade (50), respectively. The first air inlet (12) is provided on the housing corresponding to the closed air chamber, and the second air inlet (13) is provided on the housing corresponding to the disconnected air chamber.

4. The vehicle power main switch according to claim 1, characterized in that, The pneumatic blade includes a pneumatic long blade (50), and the vehicle power switch (160) also includes two isolation long blades fixed on the outer wall of the rotating shaft (20) and located in the accommodating cavity (161). The two isolation long blades, together with the pneumatic long blade (50) and the housing, form a closed air chamber and a disconnected air chamber, respectively. The first air inlet (12) is provided on the housing corresponding to the closed air chamber, and the second air inlet (13) is provided on the housing corresponding to the disconnected air chamber.

5. The vehicle power main switch according to claim 2 or 3, characterized in that, The included angle between the aerodynamic long blade (50) and the two aerodynamic short blades is equal.

6. The vehicle power main switch according to claim 3 or 4, characterized in that, A top plate (100) is fixedly provided on the circumferential outer wall of the rotating shaft (20). The top plate (100) is located above the aerodynamic long blade (50) and the two isolation long blades and is fixedly connected to the aerodynamic long blade (50) and the two isolation long blades.

7. The vehicle power main switch according to any one of claims 1 to 4, characterized in that, The elastic element is disposed between the bottom of the rotating shaft (20) and the base (130).

8. A control system for a vehicle power main switch as described in claim 1, characterized in that, The system includes an air tank, a first air intake line (190), and a second air intake line (200). The first air intake line (190) is used to connect between the air tank and the first air intake port (12) of the vehicle power main switch (160). The second air intake line (200) is used to connect between the air tank and the second air intake port (13) of the vehicle power main switch (160). Solenoid valves for controlling the on / off state of the corresponding lines are connected to the first air intake line (190) and the second air intake line (200). The control system also includes a self-powered control device (230). The control device (230) is connected to two solenoid valves. The control device (230) is used to receive the signal of closing or opening the main power switch and control the two solenoid valves to open or close respectively, so that gas enters the accommodating cavity (161) of the vehicle main power switch (160) through the first air intake line (190) and the first air intake port (12) or the second air intake line (200) and the second air intake port (13), blowing the pneumatic blades of the vehicle main power switch (160) to rotate forward or backward, and driving the rotating shaft (20) to switch between the closed working position and the open working position.

9. The control system for the vehicle power main switch according to claim 8, characterized in that, The solenoid valve is a two-position three-way solenoid valve with three ports. Two of the three ports are connected to the first air inlet line (190) or the second air inlet line (200) to form the air inlet working position of the solenoid valve. The remaining port is connected to the vent line to form the vent working position of the solenoid valve.

10. A vehicle comprising a main power supply (150), vehicle electrical systems (170), and a vehicle main power switch (160) connected between the two, characterized in that, The vehicle power switch (160) is the same as the vehicle power switch described in any one of claims 1 to 7. The vehicle also includes a control system for controlling the closing or opening of the vehicle power switch (160), which is the same as the control system of the vehicle power switch described in claim 8 or 9.

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