Electric shock prevention type power supply plugging system and electric vehicle

Abstract

A working principle of the anti-electric shock type power supply plugging system is that when a plug is inserted into a socket cavity of a socket, guide rails on two sides of a socket body are simultaneously inserted into guide grooves, and when the plug continues to move downwards, the guide rails on the two sides of the socket body press spring pieces on the sides where the guide rails are located, so that the spring pieces move outwards, and as a result, a hook is separated from the bottom of a movable connecting block; when power transmission work is not needed, under the action of a reset spring, the movable connecting block moves upwards along with the plug, and when the movable connecting block moves to the position where the bottom is higher than the hook and the plug is pulled out at the moment, under the action of the elastic force of the reset spring, the movable connecting block moves upwards along with the plug. The hook extends out to support the bottom of the movable connecting block, the movable connecting block is limited to be incapable of continuing to move downwards, the lower portion of the conductive column does not make contact with the conductive base, and the conductive device has the advantages of being safe and reliable.

Description

Technical Field

[0001] The invention relates to an anti-electric shock type power supply plugging system and an electric vehicle with the system, belonging to the technical field of power transmission safety and electric vehicles. Background Art

[0002] As is known to all, in many places where electricity is needed or in many devices that need electricity, external power is introduced through a plug-in system. The plug-in system generally includes a plug and a socket for convenient and quick connection or disconnection. The socket mainly includes a socket body and a terminal fixedly arranged in the cavity of the socket body. Therefore, when the plug is pulled out of the socket body, the terminal is exposed in the cavity of the socket body, and the terminal is energized. In this case, foreign matter can easily enter the cavity of the socket body and cause a short circuit, thereby causing corresponding safety accidents. In particular, children, driven by curiosity, will touch the terminal with their hands or other objects, which is particularly likely to cause accidental injuries to children. In recent years, since electric vehicles generally use this type of plug-in system, and driven by the curiosity of children, such accidents have been frequently reported in the media. Therefore, it is a problem that technicians in this field should solve to provide a safe and reliable anti-electric shock power plug-in system and an electric vehicle with the system. Summary of the invention

[0003] The purpose of the present invention is to provide an anti-electric shock power plug system in view of the above-mentioned defects of the existing power plug system. Another purpose of the present invention is to provide an electric vehicle with an anti-electric shock power plug system in view of the unsafe hidden dangers of the existing electric vehicle charging power plug system.

[0004] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: the above-mentioned anti-electric shock type power plugging system includes a plug and a socket which are independent of each other and used in pairs. The above-mentioned plug is structurally the same as the existing ordinary plug, except that: symmetrical, vertical guide rails are formed on both sides of the above-mentioned socket body, and the plug and the above-mentioned socket are used in pairs. The above-mentioned socket includes a seat body, and a seat cavity with an opening upward is formed in the middle of the above-mentioned seat body. The feature is that: a movable connecting block is arranged and installed in the above-mentioned seat cavity, and vertical convex ribs are symmetrically formed on the front and rear sides of the above-mentioned movable connecting block, and a vertical and symmetrical limiting groove is formed on the front and rear inner walls of the seat cavity of the seat body, respectively, and the convex ribs of the movable connecting block fit in the limiting groove, and a limiting block is fixedly installed at the upper position of the limiting groove, and the limiting block enables the movable connecting block to move up and down a certain distance in the seat cavity without falling off the seat. The outside of the cavity is provided with vertical and mutually symmetrical guide grooves on the left and right sides of the seat cavity, and a spring sheet is arranged in each guide groove, the upper end of the spring sheet is fixed on the wall at the bottom of the guide groove, and the lower part is provided with an inverted "7"-shaped hook extending inward, and in a natural state, the hook extends out to support the bottom of the movable connection block, and in this state, the movable connection block cannot continue to move downward under the restriction of the hook, and a conductive column that passes through the upper and lower parts is fixedly arranged on the movable connection block, and a conductive seat is arranged and installed at the bottom of the seat cavity directly below each conductive column, and a reset spring is arranged and installed at the bottom of the seat cavity and the lower position of the movable connection block, and in a natural state, that is, when the plug is not inserted into the socket, the hook extends out to support the bottom of the movable connection block, and the movable connection block cannot continue to move downward under the restriction of the hook, and there is no contact between the bottom of the conductive column and the conductive seat.

[0005] The electric vehicle described in the present invention refers to an electric vehicle that includes the above-mentioned anti-electric shock type power supply connection system. The working principle of the present invention is as follows: when the plug is inserted into the socket cavity (12) of the socket, the guide rails (3) on both sides of the socket body of the socket are simultaneously inserted into the guide grooves (10) on both sides of the socket cavity (12); when the plug continues to move downward, the guide rails (3) on both sides of the socket body simultaneously press the spring sheet (7) on the side where they are located, so that the spring sheet (7) moves outward; as a result of the outward movement of the spring sheet (7), the bent hook (14) is separated from the bottom of the movable connecting block (6), thereby releasing the restriction on the downward movement of the movable connecting block (6); when the plug continues to move downward, the lower part of the conductive column (4) is connected to the conductive seat (13), so that normal power transmission can be carried out; when the plug is not moved downward, the conductive column (4) is connected to the conductive seat (13), so that normal power transmission can be carried out. When power transmission is required, that is, when the plug needs to be unplugged, the movable connecting block (6) moves upward with the plug under the action of the reset spring (9). When the movable connecting block (6) moves to a position where the bottom is higher than the hook (14) and the plug is unplugged, the hook (14) extends out and holds the bottom of the movable connecting block (6) under the elastic force of the reset spring (9). The movable connecting block (6) cannot continue to move downward under the restriction of the hook (14), and the bottom of the conductive column (4) does not contact the conductive seat (13). In this case, the conductive column (4) of the socket is not charged, which plays a role of safety protection.

[0006] Beneficial effect: It can be seen from the working principle of the present invention that even if a foreign object or a human hand comes into contact with the terminal (4), a short circuit or electric shock will not occur, and the present invention has the advantages of safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 is a front view of the plug of the present invention; Figure 2 It is a front view of the socket of the present invention; Figure 3 yes Figure 2 A-direction view; Figure 4 yes Figure 3 BB cross-section diagram; Figure 5 yes Figure 3 CC cross-section diagram; Figure 6 yes Figure 1 DD cross-section diagram; Figure 7 It is a three-dimensional diagram of the seat body; Figure 8 It is a stereogram of the movable connection block.

[0008] As shown in the figure: 1 is the plug body, 2 is the seat body, 3 is the guide rail, 4 is the conductive column, 5 is the limit block, 6 is the movable connection block, 7 is the spring sheet, 8 is the limit groove, 9 is the return spring, 10 is the guide groove, 11 is the convex rib, 12 is the seat cavity, 13 is the conductive seat, and 14 is the hook. DETAILED DESCRIPTION

[0009] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 The specific implementation mode of the present invention is: A power plug system for preventing electric shock, comprising a plug and a socket which are independent of each other and used in pairs, wherein the plug is structurally the same as an existing common plug, except that symmetrical vertical guide rails (3) are formed on both sides of the socket body (1), and the plug and the socket are used in pairs, wherein the socket comprises a seat body (2), wherein a seat cavity (12) opening upward is formed in the middle of the seat body (2), and wherein a movable connection block (6) is arranged and installed in the seat cavity (12), wherein the movable connection block (6) is arranged and installed in the seat cavity (12), and the movable connection block (6) is arranged and installed in the seat cavity (12). The movable connecting block (6) is symmetrically provided with vertical convex ribs (11) on the front and rear sides, and a vertical and symmetrical limiting groove (8) is provided on the front and rear inner walls of the seat cavity (12) of the seat body (2). The convex ribs of the movable connecting block (6) fit into the limiting groove (8), and a limiting block (5) is fixedly installed at the upper position of the limiting groove (8). The limiting block (5) enables the movable connecting block (6) to move up and down a certain distance in the seat cavity (12) without falling off the outside of the seat cavity (12). On the left and right sides of the seat cavity (12), A vertical and mutually symmetrical guide groove (10) is formed, and a spring sheet (7) is arranged in each guide groove (10). The upper end of the spring sheet (7) is fixed to the wall at the bottom of the guide groove (7), and the lower part is formed with an inverted "7"-shaped hook (14) extending inward. In a natural state, the hook (14) extends out to support the bottom of the movable connection block (6). In this state, the movable connection block (6) cannot continue to move downward under the restriction of the hook (14). A spring sheet (7) is fixedly installed on the movable connection block (6) to pass through from top to bottom. Conductive posts (4), a conductive seat (13) is arranged and installed at the bottom of the seat cavity (12) directly below each conductive post (4), a reset spring (9) is arranged and installed at the bottom of the seat cavity (12) and the bottom of the movable connecting block (6), and in a natural state, that is, when the plug is not inserted into the socket, the hook (14) extends out to support the bottom of the movable connecting block (6), the movable connecting block (6) cannot continue to move downward under the restriction of the hook (14), and the bottom of the conductive post (4) is not in contact with the conductive seat (13).

[0010] The electric vehicle described in the present invention refers to an electric vehicle that includes the above-mentioned anti-electric shock type power supply connection system.

Claims

1. An electric shock protection power plug system, comprising a plug and a socket that are independent of each other but used in pairs, characterized in that: Mutually symmetrical vertical guide rails (3) are formed on both sides of the socket body (1), and the plug and the socket are used in pairs.

2. According to claim 1, the anti-electric shock type power plug system is characterized by: A seat cavity (12) opening upward is formed in the middle of the seat body (2), and a movable connection block (6) is arranged and installed in the seat cavity (12). Vertical convex ribs (11) are symmetrically formed on the front and rear sides of the movable connection block (6). A vertical and symmetrical limiting groove (8) is formed on the front and rear inner walls of the seat cavity (12) of the seat body (2), and the convex rib of the movable connection block (6) fits in the limiting groove (8). A limiting block (5) is fixedly installed at the upper position of the limiting groove (8). The limiting block (5) allows the movable connection block (6) to move up and down a certain distance in the seat cavity (12) and does not fall off the outside of the seat cavity (12). Vertical and mutually symmetrical guide grooves (10) are formed on the left and right sides of the seat cavity (12), and a spring sheet (7) is arranged in each guide groove (10). The upper end of the spring sheet (7) is fixed to the bottom of the guide groove (7). A hook (14) in the shape of an inverted "7" extending inward is formed on the wall at the lower part. In a natural state, the hook (14) extends out to hold the bottom of the movable connection block (6). In this state, the movable connection block (6) cannot continue to move downward under the restriction of the hook (14). A conductive column (4) penetrating from top to bottom is fixedly arranged on the movable connection block (6). A conductive seat (13) is arranged at the bottom of a seat cavity (12) directly below each conductive column (4). A reset spring (9) is arranged at the bottom of the seat cavity (12) and at the bottom of the movable connection block (6). In a natural state, that is, when the plug is not inserted into the socket, the hook (14) extends out to hold the bottom of the movable connection block (6). The movable connection block (6) cannot continue to move downward under the restriction of the hook (14), and the bottom of the conductive column (4) is not in contact with the conductive seat (13).

3. An electric vehicle, characterized in that: It includes all the rights mentioned in 1-2 above.

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