Switch and charging pile

Abstract

The utility model relates to the technical field of switch sealing, and discloses a switch and a charging pile, and the switch comprises a first opening, a trigger part, a sealing part and a reset part. At least one part of the trigger part is located in the first opening and can move in the extending direction of the first opening. The sealing part is used for sealing the first opening, the sealing part is provided with a deformation cavity, the deformation cavity is used for being extruded when the sealing part moves, the triggering part is fixedly connected with the sealing part, and the sealing part can drive the triggering part to close or open a contact of the guide circuit. The reset part is used for applying force opposite to the acting force to the trigger part so that the trigger part can be reset. And the sealing part drives the triggering part to move along the extension direction of the first opening, so that the contact of the guide circuit is closed or opened, and the guide circuit generates an electric signal. The sealing part is used for sealing the first opening and can improve the sealing performance of the switch. The triggering part can be driven by the sealing part to move, and the deformation cavity provides a deformation space for the sealing part when the sealing part is subjected to the acting force of the charging gun.

Description

Technical Field

[0001] The present application relates to the technical field of switch sealing, and in particular to a switch and a charging pile. Background Art

[0002] Charging piles refer to facilities that provide power to electric vehicles, which allow users to obtain electricity by themselves.

[0003] The charging pile is generally equipped with a charging gun. When the charging gun is returned to its original position, it will be inserted into the charging pile and will contact the switch in the charging pile, causing the circuit where it is located to generate an electrical signal. The electrical signal is received by the charging pile, thereby completing the return monitoring of the charging gun.

[0004] In the related art, the sealing of the switch is poor and it is easy to be contaminated by impurities, resulting in reduced working performance. Utility Model Content

[0005] In view of this, the present application provides a switch and a charging pile to improve their sealing performance.

[0006] Specifically, the following technical solutions are included:

[0007] One aspect of the present application provides a switch, which includes a first opening, a trigger part, a sealing part and a reset part. At least a part of the trigger part is located in the first opening and can move along the extension direction of the first opening. The sealing part is used to seal the first opening, and the sealing part has a deformation cavity, and the deformation cavity is used to be squeezed when the sealing part moves. One end of the trigger part is located in the deformation cavity and is fixedly connected to the sealing part. The sealing part is driven by the force of the charging gun to close or disconnect the contacts of the guide circuit, so that the guide circuit generates an electrical signal, and the guide circuit is used to monitor the return of the charging gun. The reset part is used to apply a force opposite to the direction of the force to the trigger part to reset the trigger part.

[0008] Among them, the sealing part is used to seal the first opening, which can improve the sealing performance of the switch. The trigger part can be moved by the sealing part, and the deformation cavity provides a space for the sealing part to deform when it is subjected to the force of the charging gun, which is conducive to the sealing part driving the trigger part to move along the extension direction of the first opening, thereby closing or disconnecting the contacts of the guide circuit, so that the guide circuit generates an electrical signal. The reset part can reset the trigger part when the force of the charging gun is removed by applying a force opposite to the direction of the force to the trigger part. The reset action can make the electrical signal generated by the trigger part in the guide circuit disappear, thereby realizing the monitoring of the return of the charging gun. This also allows the trigger part to generate an electrical signal in the guide circuit when it is subjected to the force of the charging gun next time. That is, the reset part can make the trigger part repeatedly subjected to the force of the charging gun, and make the guide circuit generate an electrical signal, which is conducive to completing the monitoring of the return of the charging gun.

[0009] Optionally, the trigger portion has an annular groove, which extends along the circumference of the trigger portion and is annular in shape, and the sealing portion has a first sealing body, which extends into and seals the annular groove.

[0010] In this technical solution, the annular groove on the trigger part divides the trigger part into two parts, one of which is wrapped by the sealing part and its sealing body, so that the sealing part can still retain a certain sealing performance after the part that is often in contact with the charging gun is worn.

[0011] Optionally, the switch further comprises a housing, and the first opening is located in the housing.

[0012] In the present technical solution, the shell can support the trigger part, the sealing part and the reset part, which is beneficial for the sealing part to seal the first opening.

[0013] Optionally, the shell has a connecting ring groove, which extends along the circumference of the first opening and is annular in shape, and the sealing portion extends into and seals the connecting ring groove.

[0014] The connecting ring groove arranged in this way can be sealed by the sealing part to separate the first opening from the outside, so as to form a sealing effect on the first opening.

[0015] Optionally, the shell further has a limiting portion, which is used to limit at least a portion of the sealing portion within the connecting ring groove, the limiting portion is located at the opening of the connecting ring groove, and the orthographic projection of the limiting portion on the connecting ring groove partially overlaps with the orthographic projection of the sealing portion on the connecting ring groove.

[0016] In the technical solution, the limiting part interferes with the sealing part, so that the sealing part maintains the sealing effect on the connecting ring groove.

[0017] Optionally, the housing further comprises a second sealing body, the second sealing body is located in the connecting ring groove, and the sealing portion is attached to and abuts against an outer surface of the second sealing body to generate pressure to seal the connecting ring groove.

[0018] In the technical solution, the second sealing body occupies the space of the connecting ring groove, which can increase the pressure of the sealing part on the side wall of the connecting ring groove, thereby improving the sealing effect.

[0019] Optionally, the switch further includes a sealing layer, the shell further includes a accommodating cavity and a second opening, the accommodating cavity is used to accommodate the reset part, the trigger part can move into the accommodating cavity, the accommodating cavity connects the first opening and the second opening, the sealing layer seals the second opening, and the shell is integrally formed.

[0020] In the technical solution, the second opening can be used for the reset part and other components to pass through, so that they can be installed on the accommodating cavity. The accommodating cavity is connected to the first opening and the second opening, which is conducive to the assembly of the reset part and the trigger part. The sealing layer and the integrally formed shell can improve the sealing performance of the shell.

[0021] Optionally, the sealing layer includes a bonding layer and a fixing layer, the bonding layer and the fixing layer are stacked along an extending direction of the second opening, and the bonding layer is closer to the accommodating cavity than the fixing layer.

[0022] In the technical solution, the bonding layer plays a sealing role, and the fixing layer can fix the bonding layer to improve its sealing effect.

[0023] Optionally, the switch further includes a first terminal and a second terminal, both of which are used to be connected to the guide circuit, and the first terminal and the second terminal are used to be connected or disconnected by the triggering part to close or disconnect the contacts of the guide circuit, and both of the first terminal and the second terminal extend from the bonding layer through the fixing layer to the second opening.

[0024] In the technical solution, the bonding layer and the fixing layer support the first terminal and the second terminal, and the first terminal and the second terminal are conducive to the triggering part closing or opening the contacts of the guiding circuit, so that the guiding circuit generates an electrical signal.

[0025] Optionally, the reset part includes a spring sheet, which is used to be driven by the trigger part to close or open the contacts of the guidance circuit, so that the guidance circuit generates an electrical signal, and the spring sheet is used to generate an elastic force in the opposite direction of the force when driven by the trigger part, so as to reset the trigger part.

[0026] In the technical solution, the spring piece generates elastic force by being driven by the trigger part, and when the force of the charging gun is removed, the elastic force can act on the trigger part to reset the trigger part.

[0027] Optionally, the deformation cavity includes a first deformation sub-cavity and a second deformation sub-cavity, the first deformation sub-cavity is farther from the first opening than the second deformation sub-cavity, and the cross-sectional area of ​​the first deformation sub-cavity is smaller than the cross-sectional area of ​​the second deformation sub-cavity.

[0028] In the technical solution, the first deformation sub-cavity and the second deformation sub-cavity of the above-mentioned shape are conducive to the deformation of the sealing part, thereby driving the trigger part to close or open the contacts of the guiding circuit.

[0029] Another aspect of the present application provides a charging pile, which includes a slot, a charging gun, a guide circuit and a switch. The slot is used for inserting the charging gun. The guide circuit is used to monitor the return of the charging gun. The switch includes a first opening, a trigger part, a sealing part and a reset part; at least a part of the trigger part is located in the first opening and can move along the extension direction of the first opening, the sealing part is used to seal the first opening, the sealing part has a deformation cavity, and the deformation cavity is used to be squeezed when the sealing part moves, and one end of the trigger part is located in the deformation cavity and is fixedly connected to the sealing part. When the charging gun is inserted into the slot, the switch is subjected to the force from the charging gun, and the sealing part is driven by the force of the charging gun to close or disconnect the contacts of the guide circuit, so that the guide circuit generates an electrical signal. When the charging gun leaves the slot, the reset part applies a reset force to the trigger part.

[0030] In the present technical solution, the charging gun can transmit electrical energy to the car. The slot is used for the charging gun to be inserted, and can form a support for the charging gun to complete the return of the charging gun. The trigger part is subjected to the force generated by the charging gun being inserted into the slot, and closes or disconnects the contacts of the guiding circuit, so that the guiding circuit generates an electrical signal, and the electrical signal can enable the guiding circuit to monitor the return of the charging gun. The reset part can reset the trigger part when the force of the charging gun is removed by applying a force opposite to the direction of the force to the trigger part, so that the electrical signal generated by the trigger part in the guiding circuit disappears, thereby realizing the monitoring of the return of the charging gun, and also enabling the trigger part to generate an electrical signal in the guiding circuit when it is subjected to the force of the charging gun next time, so as to monitor the return of the charging gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 A full cross-sectional schematic diagram of a switch provided in an embodiment of the present application;

[0033] Figure 2 for Figure 1 Detailed diagram of point A in the middle;

[0034] Figure 3 A full cross-sectional schematic diagram of a trigger portion provided in an embodiment of the present application;

[0035] Figure 4 A partial cross-sectional schematic diagram of a switch provided in an embodiment of the present application;

[0036] Figure 5 A full cross-sectional schematic diagram of another switch provided in an embodiment of the present application;

[0037] Figure 6 A full cross-sectional schematic diagram of a housing provided in an embodiment of the present application;

[0038] Figure 7 A full cross-sectional schematic diagram of a sealing portion provided in an embodiment of the present application;

[0039] Figure 8 A partial cross-sectional schematic diagram of a charging pile provided in an embodiment of the present application;

[0040] Fig. 9 A schematic diagram of the structure of a steering circuit provided in an embodiment of the present application.

[0041] The reference numerals in the figures represent respectively:

[0042] 1. Shell; 101. First opening; 102. Connecting ring groove; 103. Accommodating cavity; 104. Second opening; 11. Limiting portion; 12. Second sealing body;

[0043] 2. triggering part; 201. ring groove;

[0044] 3. Sealing part; 301. Deformation cavity; 3011. First deformation sub-cavity; 3012. Second deformation sub-cavity; 31. First sealing body;

[0045] 4. Reset portion; 41. Shrapnel;

[0046] 5. Sealing layer; 51. Bonding layer; 52. Fixing layer;

[0047] 61. first terminal; 62. second terminal;

[0048] 700, slot;

[0049] 8. Charging gun;

[0050] 9. Steering circuit; 91. Contact; 92. First resistor; 93. Monitor; 94. Second resistor; 95. Ground terminal.

[0051] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0052] When the charging gun is returned to its position and inserted into the charging pile, it drives the trigger part in the charging pile to put the switch into a working state. The switch in a working state will cause the circuit in which it is located to generate an electrical signal, which is received by the charging pile, thereby completing the identification of the charging gun.

[0053] Since the trigger part controls the working state of the switch by moving, the trigger part needs a certain amount of space for movement. At the same time, the trigger part needs to extend out of the switch to contact the charging gun, and the space for movement needs to extend to the outer surface of the switch. Therefore, the space for movement can easily become a channel for other impurities to enter the interior of the switch, which makes the sealing reliability of the switch defective and prone to failure due to water ingress.

[0054] In view of this, the present application provides a switch on one hand to improve its sealing performance.

[0055] like Figure 1 As shown, the switch includes a first opening 101, a triggering part 2, a sealing part 3 and a reset part 4. Among them, at least a part of the triggering part 2 is located in the first opening 101 and can move along the extension direction of the first opening 101. The sealing part 3 is used to seal the first opening 101. The sealing part 3 has a deformation cavity 301. The deformation cavity 301 is used to be squeezed when the sealing part 3 moves. One end of the triggering part 2 is located in the deformation cavity 301 and is fixedly connected to the sealing part 3. The sealing part 3 is subjected to the force of the charging gun 8 and can drive the triggering part 2 to close or disconnect the contact 91 of the guiding circuit 9, so that the guiding circuit 9 generates an electrical signal. The guiding circuit 9 is used to monitor the reset of the charging gun 8. The reset part 4 is used to apply a force opposite to the direction of the force to the triggering part 2 to reset the triggering part 2.

[0056] Among them, the sealing part 3 is used to seal the first opening 101, which can improve the sealing performance of the switch. The trigger part 2 can be driven by the sealing part 3 to move, and the deformation cavity 301 provides a space for the sealing part 3 to deform when it is subjected to the force of the charging gun 8, which is conducive to the sealing part 3 driving the trigger part 2 to move along the extension direction of the first opening 101, thereby closing or disconnecting the contact 91 of the guide circuit 9, so that the guide circuit 9 generates an electrical signal. The reset part 4 can reset the trigger part 2 when the force of the charging gun 8 is removed by applying a force opposite to the direction of the force to the trigger part 2. The reset action can make the electrical signal generated by the trigger part 2 in the guide circuit 9 disappear, thereby realizing the monitoring of the return of the charging gun 8. In this way, the trigger part 2 can also make the guide circuit 9 generate an electrical signal when it is subjected to the force of the charging gun 8 next time. That is, the reset part 4 can make the trigger part 2 repeatedly subjected to the force of the charging gun 8, and make the guide circuit 9 generate an electrical signal, which is conducive to completing the monitoring of the return of the charging gun 8.

[0057] In this embodiment, the cross-sectional area of ​​the first opening 101 along the moving direction of the trigger portion 2 can be the same everywhere, and can be smaller or larger closer to the sealing portion 3 .

[0058] In this embodiment, one end of the trigger part 2 fixedly connected to the sealing part 3 may be a plane, which can reduce the pressure on the trigger part 2 when it is acted upon by the charging gun 8, and is conducive to maintaining the connection between the trigger part 2 and the sealing part 3.

[0059] In this embodiment, the trigger part 2 and the sealing part 3 can be fixedly connected by bonding or the like, so that the sealing part 3 can drive the trigger part 2 to move, thereby closing or opening the contact 91 of the guiding circuit 9, so that the guiding circuit 9 generates an electrical signal.

[0060] In this embodiment, the sealing portion 3 can form a seal on the first opening 101 inside the first opening 101 , or can form a seal on the first opening 101 outside the first opening 101 by separating the first opening 101 from the outside.

[0061] In this embodiment, the resetting force generated by the resetting portion 4 may increase as the pressure of the charging gun 8 applied to the sealing portion 3 increases when the trigger portion 2 is driven by the sealing portion 3 .

[0062] In this embodiment, the cross-sectional area of ​​the deformation cavity 301 may gradually decrease along the moving direction of the sealing portion 3 , from a position close to the first opening 101 to a position far from the first opening 101 .

[0063] In this embodiment, the force of the charging gun 8 can be pressure. The sealing part 3 is used to drive the trigger part 2 to move under the force of the charging gun 8, and the moving trigger part 2 can contact with the contact 91 or other components in the guide circuit 9 and generate pressure, thereby closing or opening the contact 91, so that the guide circuit 9 generates an electrical signal.

[0064] In this embodiment, if the contact 91 in the steering circuit 9 remains in an open state when not affected by the trigger part 2 of the embodiment of the present application, closing can cause the physical quantity in the steering circuit 9 to change, thereby generating an electrical signal; if the contact 91 remains in a closed state when not affected by the trigger part 2 of the embodiment of the present application, opening can cause the physical quantity in the steering circuit 9 to change, thereby generating an electrical signal. Among them, the physical quantity in the steering circuit 9 can be resistance, current, and voltage. The electrical signal of the steering circuit 9 can be a current signal or a voltage signal. Among them, taking the case that the contact 91 in the steering circuit 9 remains in an open state when not affected by the trigger part 2 of the embodiment of the present application as an example, an electrical signal is generated when closed, and the steering circuit 9 can monitor that the charging gun 8 has returned to its position; the electrical signal disappears when disconnected, and the steering circuit 9 can monitor that the charging gun 8 has not returned to its position.

[0065] Since one end of the trigger part 2 is fixedly connected to the sealing part 3, when the charging gun 8 acts on the sealing part 3, the sealing part 3 tends to move relative to the one end of the trigger part 2. This tendency makes the part where the sealing part 3 is connected to the one end of the trigger part 2 easy to wear. The sealing performance of the worn sealing part 3 is reduced. In order to maintain the sealing performance of the sealing part 3, as shown in FIG. Figure 2 , Figure 3 and Figure 7 As shown, the triggering portion 2 has an annular groove 201 , which extends along the circumference of the triggering portion 2 and is annular in shape. The sealing portion 3 has a first sealing body 31 , which extends into and seals the annular groove 201 .

[0066] The annular groove 201 on the trigger part 2 separates the trigger part 2 into two parts. One part is wrapped by the sealing part 3 and its sealing body, so that the part of the sealing part 3 that is in frequent contact with the charging gun 8 can be exposed to the sealing part 3 after being worn, and the sealing part 3 can still separate the first opening 101 from the outside by sealing the annular groove 201, thereby maintaining the sealing performance.

[0067] In this embodiment, the first sealing body 31 can be elastically deformed by abutting against the wall surface of the annular groove 201 in the annular groove 201. The elastic deformation allows the first sealing body 31 to completely fill the annular groove 201, thereby sealing the annular groove 201. The first sealing body 31 and the annular groove 201 can also be filled with a connecting medium to form a seal for the annular groove 201.

[0068] In this embodiment, the shape of the annular groove 201 may be a circular ring.

[0069] In some embodiments, such as Figure 2 and Figure 4 As shown, the switch further comprises a housing 1 , and a first opening 101 is located in the housing 1 .

[0070] In this embodiment, the housing 1 can support the triggering portion 2 , the sealing portion 3 and the resetting portion 4 , which is beneficial for the sealing portion 3 to seal the first opening 101 .

[0071] To achieve the sealing effect of the sealing portion 3 on the first opening 101, as Figure 2 and Figure 4 As shown, the housing 1 further has a connecting annular groove 102, which extends along the circumference of the first opening 101 and is annular, and the sealing portion 3 extends into and seals the connecting annular groove 102. In this way, the first opening 101 can be sealed by separating it from the outside.

[0072] The connecting annular groove 102 configured in this way can be sealed by the sealing portion 3 to separate the first opening 101 from the outside, thereby forming a sealing effect on the first opening 101 .

[0073] In this embodiment, the sealing portion 3 can be elastically deformed by abutting against the wall surface of the connecting annular groove 102 in the connecting annular groove 102. The elastic deformation allows the sealing portion 3 to completely fill the connecting annular groove 102, thereby sealing the connecting annular groove 102. The sealing portion 3 and the connecting annular groove 102 can also be filled with a connecting medium to form a seal on the connecting annular groove 102.

[0074] In this embodiment, the connecting ring groove 102 may be in the shape of a circular ring.

[0075] In this embodiment, the sealing portion 3 can be installed in the connecting annular groove 102 by heat riveting. The shape of the portion of the sealing portion 3 extending into the connecting annular groove 102 can be matched with the shape of the connecting annular groove 102 to play a sealing role.

[0076] The sealing portion 3 extends into the connecting annular groove 102 to form a seal on the connecting annular groove 102, so that when the sealing portion 3 is removed from the connecting annular groove 102, the sealing function will also disappear accordingly. Figure 2 As shown, the shell 1 also has a limiting portion 11, which is used to limit at least a portion of the sealing portion 3 within the connecting ring groove 102. The limiting portion 11 is located at the opening of the connecting ring groove 102, and the orthographic projection of the limiting portion 11 on the connecting ring groove 102 partially overlaps with the orthographic projection of the sealing portion 3 on the connecting ring groove 102.

[0077] The limiting portion 11 interferes with the sealing portion 3 , so that the sealing portion 3 has some difficulty in escaping from the connecting ring groove 102 , which can maintain the sealing effect of the sealing portion 3 on the connecting ring groove 102 .

[0078] In this embodiment, the limiting portion 11 can be located at one side of the opening of the connecting annular groove 102, and the sealing portion 3 can extend into the connecting annular groove 102 from the other side of the opening of the connecting annular groove 102 to seal the connecting annular groove 102. The limiting portion 11 can also be located in the middle of the opening of the connecting annular groove 102, and the sealing portion 3 can extend into the connecting annular groove 102 from both sides of the limiting portion 11 to seal the connecting annular groove 102.

[0079] like Figure 2 and Figure 4 As shown, the housing 1 also has a second sealing body 12, which is located in the connecting annular groove 102, and the sealing portion 3 is attached and abutted against the outer surface of the second sealing body 12 to generate pressure to seal the connecting annular groove 102. In this way, the sealing effect of the sealing portion 3 on the connecting annular groove 102 can be improved.

[0080] The second sealing body 12 occupies the space of the connecting annular groove 102 , which can increase the pressure of the sealing portion 3 on the side wall of the connecting annular groove 102 , thereby improving the sealing effect.

[0081] In this embodiment, the second sealing body 12 may be a cone, a cylinder or other shapes. The second sealing body 12 may extend along the extending direction of the connecting annular groove 102. There may be a plurality of second sealing bodies 12, which are arranged at intervals along the extending direction of the connecting annular groove 102.

[0082] In some embodiments of the present application, the switch further includes a sealing layer 5, the shell 1 includes a accommodating cavity 103 and a second opening 104, the accommodating cavity 103 is used to accommodate the reset part 4, the trigger part 2 can move into the accommodating cavity 103, the accommodating cavity 103 connects the first opening 101 and the second opening 104, the sealing layer 5 seals the second opening 104, and the shell 1 is integrally formed.

[0083] In this embodiment, the second opening 104 allows the reset part 4 and other components to pass through so that they can be installed on the accommodating cavity 103. The accommodating cavity 103 communicates with the first opening 101 and the second opening 104, which is conducive to the assembly of the reset part 4 and the trigger part 2. The sealing layer 5 and the integrally formed housing 1 can improve the sealing performance of the housing 1.

[0084] The portion of the limiting portion 11 that enters the accommodating cavity 103 may form a limiting structure, so that the limiting portion 11 cannot leave the accommodating cavity 103 through the first opening 101 .

[0085] The sealing layer 5 may be located inside the second opening 104 to form a seal for the second opening 104 , or may be located outside the second opening 104 to form a seal for the second opening 104 .

[0086] In some embodiments, such as Figure 5 and Figure 6 As shown, the sealing layer 5 includes a bonding layer 51 and a fixing layer 52 . The bonding layer 51 and the fixing layer 52 are stacked along the extending direction of the second opening 104 . The bonding layer 51 is closer to the accommodating cavity 103 than the fixing layer 52 .

[0087] In this embodiment, the material of the bonding layer 51 may be silicone.

[0088] In this embodiment, the material of the fixing layer 52 may be epoxy resin.

[0089] In some embodiments, such as Figure 5 and Figure 6 As shown, the switch also includes a first terminal 61 and a second terminal 62, both of which are used to conduct with the guide circuit 9, and the first terminal 61 and the second terminal 62 are used to be connected or disconnected by the trigger part 2 to close or disconnect the contact 91 of the guide circuit 9, and the first terminal 61 and the second terminal 62 both extend from the bonding layer 51 through the fixing layer 52 to the second opening 104.

[0090] In this embodiment, the first terminal 61 and the second terminal 62 can be connected to the contact 91 of the guide circuit 9 respectively, and the trigger unit 2 can generate an electrical signal in the guide circuit 9 by turning on or off the first terminal 61. The first terminal 61 and the second terminal 62 are both extended from the bonding layer 51 through the fixing layer 52 to the second opening 104. On the one hand, the first terminal 61 and the second terminal 62 can be supported and fixed by the bonding layer 51 and the fixing layer 52, and on the other hand, it is also conducive to improving the sealing of the switch of the present application.

[0091] In some embodiments, such as Figure 2 As shown, the reset part 4 includes a spring piece, which is used to be driven by the trigger part 2 to close or open the contact 91 of the guidance circuit 9, so that the guidance circuit 9 generates an electrical signal. The spring piece is used to generate an elastic force in the opposite direction of the applied force when driven by the trigger part 2, so as to reset the trigger part 2.

[0092] In this embodiment, the spring piece generates elastic force by being driven by the trigger part 2 , and when the force of the charging gun 8 is removed, the elastic force can act on the trigger part 2 to reset the trigger part 2 .

[0093] For example, the direction of the force of the charging gun 8 is as follows: Figure 2As shown. When the force of the charging gun 8 is applied, the sealing part 3 drives the trigger part 2 to move downward, exerting pressure on the spring sheet, causing the spring sheet to deform elastically and generate an elastic force in the opposite direction to the force of the charging gun 8. When the force of the charging gun 8 is removed, the spring sheet recovers, driving the trigger part 2 and the sealing part 3 to reset.

[0094] The spring sheet can be connected to the contact 91 of the guiding circuit 9 to make the guiding circuit 9 generate an electrical signal. The switch can also be arranged with an intermediate component connected to the contact 91 of the guiding circuit 9, and the spring sheet is connected to other components of the guiding circuit 9. By making the spring sheet elastically deform and connect to the intermediate component, the guiding circuit 9 can generate an electrical signal.

[0095] When the sealing part 3 moves, it will deform to a certain extent. The deformation cavity 301 is squeezed by the deformation of the sealing part 3, so that the deformed part of the sealing part 3 will not interfere with its moving direction. In order to make the shape of the deformation cavity 301 adapt to the deformation of the sealing part 3, as shown in FIG. Figure 7 As shown, the deformation cavity 301 includes a first deformation sub-cavity 3011 and a second deformation sub-cavity 3012 . The first deformation sub-cavity 3011 is farther away from the first opening 101 than the second deformation sub-cavity 3012 . The cross-sectional area of ​​the first deformation sub-cavity 3011 is smaller than that of the second deformation sub-cavity 3012 .

[0096] In this embodiment, the first deformation sub-cavity 3011 and the second deformation sub-cavity 3012 of the above-mentioned shape are conducive to the deformation of the sealing part 3, thereby driving the trigger part 2 to close or open the contact 91 of the guiding circuit 9.

[0097] It can be understood that, for the sealing part 3, when it moves, the closer the part is to the charging gun 8, the smaller the deformation degree is, and vice versa. By providing the first deformation sub-cavity 3011 with a smaller cross-sectional area and the second deformation sub-cavity 3012 with a larger cross-sectional area, the deformation cavity 301 can cause the sealing part 3 to deform more greatly at the part away from the charging gun 8.

[0098] The shape of the first deformation sub-cavity 3011 may be similar to or different from the shape of the second deformation sub-cavity 3012. For example, the shape of the first deformation sub-cavity 3011 and the shape of the second deformation sub-cavity 3012 may both be cylindrical.

[0099] Another aspect of the present application provides a charging pile, such as Figure 8As shown, the charging pile includes a slot 700, a charging gun 8, a guiding circuit 9 and a switch. The slot 700 is used for inserting the charging gun 8. The guiding circuit 9 is used to monitor the return of the charging gun 8. The switch includes a first opening 101, a trigger part 2, a sealing part 3 and a reset part 4; at least a part of the trigger part 2 is located in the first opening 101 and can move along the extension direction of the first opening 101, the sealing part 3 is used to seal the first opening 101, the sealing part 3 has a deformation cavity 301, and the deformation cavity 301 is used to be squeezed when the sealing part 3 moves, and one end of the trigger part 2 is located in the deformation cavity 301 and is fixedly connected to the sealing part 3. When the charging gun 8 is inserted into the slot 700, the switch is subjected to the force from the charging gun 8, and the sealing part 3 is driven by the force of the charging gun 8 to drive the trigger part 2 to close or disconnect the contact 91 of the guiding circuit 9, so that the guiding circuit 9 generates an electrical signal. When the charging gun 8 leaves the slot 700, the reset part 4 applies a reset force to the trigger part 2.

[0100] In this embodiment, the charging gun 8 can transmit electric energy to the car. The slot 700 is used for the charging gun 8 to be inserted, and can support the charging gun 8 to complete the return of the charging gun 8. The trigger part 2 is subjected to the force generated by the charging gun 8 being inserted into the slot 700, and closes or disconnects the contact 91 of the guide circuit 9, so that the guide circuit 9 generates an electrical signal, and the electrical signal can enable the guide circuit 9 to monitor the return of the charging gun 8. The reset part 4 can reset the trigger part 2 when the force of the charging gun 8 is removed by applying a force opposite to the direction of the force to the trigger part 2, so that the electrical signal generated by the trigger part 2 in the guide circuit 9 disappears, thereby realizing the monitoring of the return of the charging gun 8, and also enabling the trigger part 2 to generate an electrical signal when it is subjected to the force of the charging gun 8 next time, so as to monitor the return of the charging gun 8.

[0101] In this embodiment, if Fig. 9 As shown, the steering circuit 9 may include a first resistor 92, a monitor 93, a second resistor 94 and a ground terminal 95, the contact 91 and the first resistor 92 are connected in series between the ground terminal 95 and the monitor 93, and the second resistor 94 is connected in series between the ground terminal 95 and the monitor 93.

[0102] Optionally, the contact 91 may be initially kept closed and opened by the triggering part 2, so that the overall resistance of the steering circuit 9 changes, while the voltage remains unchanged, so that the current changes, and then an electrical signal is generated. The contact 91 may be initially kept open and closed by the triggering part 2, so that the overall resistance of the steering circuit 9 changes, while the voltage remains unchanged, so that the current changes, and then an electrical signal is generated.

[0103] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the present application disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only.

[0104] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A switch, characterized in that: The switch comprises a first opening (101), a trigger portion (2), a sealing portion (3) and a reset portion (4), wherein: At least a portion of the trigger portion (2) is located at the first opening (101), and is movable along an extending direction of the first opening (101); The sealing part (3) is used to seal the first opening (101); the sealing part (3) has a deformation cavity (301); the deformation cavity (301) is used to be squeezed when the sealing part (3) moves; one end of the trigger part (2) is located in the deformation cavity (301) and is fixedly connected to the sealing part (3); the sealing part (3) is subjected to the force of the charging gun (8) to drive the trigger part (2) to close or open the contact (91) of the guiding circuit (9), so that the guiding circuit (9) generates an electrical signal; the guiding circuit (9) is used to monitor the return status of the charging gun (8); The resetting portion (4) is used to apply a force in a direction opposite to the acting force to the trigger portion (2), so as to reset the trigger portion (2).

2. The switch according to claim 1, characterized in that: The trigger portion (2) has an annular groove (201), which extends along the circumference of the trigger portion (2) and is annular in shape. The sealing portion (3) has a first sealing body (31), which extends into and seals the annular groove (201).

3. The switch according to claim 1, characterized in that: The switch further comprises a housing (1), and the first opening (101) is located in the housing (1).

4. The switch according to claim 3, characterized in that: The housing (1) has a connecting annular groove (102), the connecting annular groove (102) extending along the circumference of the first opening (101) and being annular, and the sealing portion (3) extends into and seals the connecting annular groove (102).

5. The switch according to claim 4, characterized in that: The housing (1) further comprises a limiting portion (11), the limiting portion (11) being used to limit at least a portion of the sealing portion (3) within the connecting ring groove (102); the limiting portion (11) is located at the opening of the connecting ring groove (102); the orthographic projection of the limiting portion (11) on the connecting ring groove (102) partially overlaps with the orthographic projection of the sealing portion (3) on the connecting ring groove (102).

6. The switch according to claim 4, characterized in that: The housing (1) further comprises a second sealing body (12), the second sealing body (12) being located in the connecting ring groove (102), and the sealing portion (3) being in contact with and abutting against the outer surface of the second sealing body (12) to generate pressure for sealing the connecting ring groove (102).

7. The switch according to claim 3, characterized in that: The switch further comprises a sealing layer (5); the housing (1) further comprises a receiving cavity (103) and a second opening (104); the receiving cavity (103) is used to receive the reset portion (4); the trigger portion (2) is capable of moving into the receiving cavity (103); the receiving cavity (103) is connected to the first opening (101) and the second opening (104); the sealing layer (5) seals the second opening (104); and the housing (1) is integrally formed.

8. The switch according to claim 7, characterized in that The sealing layer (5) comprises a bonding layer (51) and a fixing layer (52); the bonding layer (51) and the fixing layer (52) are stacked along the extension direction of the second opening (104); the bonding layer (51) is closer to the accommodating cavity (103) than the fixing layer (52).

9. The switch according to claim 8, characterized in that The switch further comprises a first terminal (61) and a second terminal (62), the first terminal (61) and the second terminal (62) both being used for conducting with the guide circuit (9), the first terminal (61) and the second terminal (62) being used for being conducted or disconnected by the triggering portion (2) so as to close or disconnect a contact (91) of the guide circuit (9), the first terminal (61) and the second terminal (62) both extending from the bonding layer (51) through the fixing layer (52) to the second opening (104).

10. The switch according to claim 1, characterized in that The resetting portion (4) comprises a spring sheet (41), the spring sheet (41) being used to be driven by the trigger portion (2) to close or open a contact (91) of the guiding circuit (9), so that the guiding circuit (9) generates an electrical signal, and the spring sheet (41) is used to generate a spring force in a direction opposite to the action force when driven by the trigger portion (2), so as to reset the trigger portion (2).

11. The switch according to claim 1, characterized in that The deformation cavity (301) comprises a first deformation sub-cavity (3011) and a second deformation sub-cavity (3012), wherein the first deformation sub-cavity (3011) is farther from the first opening (101) than the second deformation sub-cavity (3012), and the cross-sectional area of ​​the first deformation sub-cavity (3011) is smaller than the cross-sectional area of ​​the second deformation sub-cavity (3012).

12. A charging pile, characterized in that: The charging pile comprises a slot (700), a charging gun (8), a guide circuit (9) and a switch, wherein: The slot (700) is used for inserting the charging gun (8); The guiding circuit (9) is used to monitor the return status of the charging gun (8); The switch comprises a first opening (101), a triggering portion (2), a sealing portion (3) and a reset portion (4); at least a portion of the triggering portion (2) is located at the first opening (101) and is movable along the extension direction of the first opening (101); the sealing portion (3) is used to seal the first opening (101); the sealing portion (3) has a deformation cavity (301); the deformation cavity (301) is used to be squeezed when the sealing portion (3) moves; one end of the triggering portion (2) is located in the deformation cavity (301) and is fixedly connected to the sealing portion (3); When the charging gun (8) is inserted into the slot (700), the switch is subjected to a force from the charging gun (8), and the sealing portion (3) is subjected to the force of the charging gun (8) to drive the trigger portion (2) to close or open the contact (91) of the guiding circuit (9), so that the guiding circuit (9) generates an electrical signal; When the charging gun (8) leaves the slot (700), the resetting portion (4) applies a resetting force to the triggering portion (2).

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