CN209168973U - Switching device and charging gun housing unit for charging gun charging circuit - Google Patents

Abstract

The utility model discloses a switch device used for a charging gun charging circuit and a charging gun housing assembly. The switch device for the charging circuit of the charging gun is characterized in that it includes a switch member and a magnetic device, the switch member is electrically connected to the charging circuit of the charging gun, and has a closed state and an open state; The magnetic device is movably arranged relative to the switch member; when the magnetic device moves, the switch member is switched between its closed state and the open state, so as to turn on or off the charging circuit. Compared with the prior art, in the charging gun housing assembly and the charging gun provided by the present invention, the locking key is arranged outside the housing and is rotatably arranged on the housing. Rotating one end of the locking key can move the magnetic device provided at the other end of the locking key. Through the movement of the magnetic device, the magnetic field changes at the place where the reed switch is located, so that the two reed pieces in the reed switch can be contacted or separated, so as to connect or disconnect the working circuit.

Description

Switch device for charging circuit of charging gun and charging gun housing assembly

technical field

The utility model relates to a switch device for a charging circuit of a charging gun and a housing assembly of the charging gun.

Background technique

The charging gun is used to charge new energy vehicles, etc. The charging gun is provided with a locking device, and the locking device is used to lock the charging gun after the charging gun is inserted into the vehicle charging socket. The locking device of the existing charging gun generally adopts a mechanical micro switch. The mechanical micro switch and the locking device are directly connected together through a mechanical structure. When the micro switch is triggered, it can control whether the locking device locks the charging gun. The microswitch protrudes into the interior of the charging gun to be connected together in direct contact with the locking device.

A seal needs to be provided between the mechanical micro switch and the shell of the charging gun to achieve the waterproof sealing performance of the charging gun, and avoid safety problems such as water or other impurities entering the charging gun and causing the charging gun to fail. After the charging gun has been used for many times for a long time, the micro switch will move frequently, which will cause mechanical aging of the seal and lead to failure, which will affect the waterproof and sealing performance of the charging gun. In addition, the contact type micro switch has a complex structure, large volume, slow triggering speed and low reliability.

In addition, a charging gun using a mechanical micro switch requires multiple components to cooperate with each other to achieve linkage. It is necessary to accurately set the size and position of each component, and there are many size chains and high positional accuracy requirements.

In addition, the charging gun using the mechanical micro-switch needs to be additionally provided with an external circuit, and the external circuit needs additional power supply, which increases the cost.

Utility model content

One of the objectives of the present invention is to overcome at least one deficiency in the prior art, and to provide a switch device for a charging gun charging circuit, a charging gun housing assembly and a charging gun that realize a non-contact switch.

In order to achieve the above purpose, the utility model realizes through the following technical solutions:

A switch device for a charging circuit of a charging gun, characterized in that it includes:

a switch member, the switch member is electrically connected to the charging circuit of the charging gun, and has a closed state and an open state; and

a magnetic device, at least part of the magnetic device is movably arranged relative to the switch member;

When the magnetic device is moved, the switch element is switched between its closed state and its open state to turn the charging circuit on or off.

According to one embodiment of the present invention, the magnetic device includes a magnet.

According to an embodiment of the present invention, the magnetic device further includes a first magnetic conductive member and a second magnetic conductive member, the first magnetic conductive member and the second magnetic conductive member are arranged at intervals for conducting the magnetic The magnetism of the device.

According to an embodiment of the present invention, the first magnetic conductive member and the second magnetic conductive member have the same structure and are arranged in a mirror image.

According to an embodiment of the present invention, the first magnetic conductive member extends from one end to the other end, and the second magnetic conductive member extends from one end to the other end; A gap is provided between one end of the magnetic conducting member, and the magnet can be moved to the gap along with the locking key of the charging gun.

According to an embodiment of the present invention, the other end of the first magnetic conductive member and the other end of the second magnetic conductive member are provided in a non-contact manner.

According to an embodiment of the present invention, the other end of the first magnetic conductive member is provided with a first concave portion, and/or the second magnetic conductive member is provided with a second concave portion; The second concave portions are located opposite to each other.

According to an embodiment of the present invention, the other end of the first magnetic conductive member is provided with a first bending portion, and the first bending portion is bent toward the magnet; the other end of the second magnetic conductive member is provided with There is a second bending part, and the second bending part is bent toward the magnet; the first bending part and the second bending part are arranged opposite to each other to form a accommodating space for accommodating the reed switch.

According to an embodiment of the present invention, the first magnetic conductive member includes a first vertical section, an upper end of the first vertical section is connected to a first upper laterally extending section, and a lower end of the first vertical section is connected to the first vertical section a lower laterally extending section; the second magnetic conducting member includes a second vertical section, the upper end of the second vertical section is connected to the second upper laterally extending section, and the lower end of the second vertical section is connected to the second lower laterally extending section ; The first magnetic conductive member and the second magnetic conductive member are arranged in a mirror image.

According to an embodiment of the present invention, the end of the first lower laterally extending section is connected to a third vertical section, the third vertical section extends toward the first upper laterally extending section; the third vertical section The end of the segment (44) is connected to a first laterally extending section, the first laterally extending section extends toward the second magnetic conductive member; the end of the second lower laterally extending section is connected to a fourth vertical section, the fourth vertical section The straight section extends toward the second upper laterally extending section; the end of the fourth vertical section is connected to a second laterally extending section, and the second laterally extending section extends towards the first magnetic conducting member; the first laterally extending The segment is positioned opposite to the second laterally extending segment and is arranged with a gap therebetween.

According to an embodiment of the present invention, the first lower lateral extension section, the third vertical section, the first lateral extension section, the second lateral extension section, the fourth vertical section and the second lower lateral extension section enclose A storage space for accommodating reed switches.

According to an embodiment of the present invention, the first magnetic conductive member is C-shaped; the second magnetic conductive member is C-shaped.

According to an embodiment of the present invention, the switch element further comprises a reed switch, the reed switch is arranged in the housing, and the reed switch comprises a tube body, two reed sheets and two pins , the two reed pieces are electrically connected with two pins respectively, and the two dry reed pieces are arranged in the tube body; the two dry reed pieces can be contacted or separated by magnetic action; the The dry reed is provided in a non-contact manner with the magnetic device.

A charging gun housing assembly, characterized in that it includes:

a housing, the housing is provided with an accommodating cavity;

A locking key, the locking key is located outside the casing, the locking key is rotatably arranged on the casing through a rotating shaft, and when one end of the locking key is pressed, it can rotate around the rotating shaft set up;

In the aforementioned switch device, the magnetic device is disposed at the other end of the locking key and moves with the other end of the locking key.

According to an embodiment of the present invention, a spring is provided between one end of the locking key and the housing;

When one end of the locking key is rotated by an external force, the spring is elastically deformed;

After the external force disappears, the elastic force of the spring is released and drives the locking key to return to the initial position.

According to an embodiment of the present invention, the magnetic device includes a first magnetic conductive member and a second magnetic conductive member, both of which are disposed through the casing and extend from the outside of the casing to the outside of the casing. internal.

According to an embodiment of the present invention, the first magnetic conductive member, the second magnetic conductive member and the housing are one piece.

According to an embodiment of the present invention, the housing includes a bottom case and an upper cover, the bottom case is connected with the upper cover and encloses the accommodating cavity; the locking key is rotatably driven by a rotating shaft set on the upper cover.

According to an embodiment of the present invention, it further includes a protective cover, the protective cover is connected with the upper cover and encloses a protective cavity, and the locking key is at least partially accommodated in the protective cavity.

A charging gun, characterized in that it includes:

a housing, the housing is provided with an accommodating cavity;

A locking key, the locking key is located outside the casing, the locking key is rotatably arranged on the casing through a rotating shaft, and when one end of the locking key is pressed, it can rotate around the rotating shaft set up;

Switchgear as aforesaid;

The switch element includes a reed switch, the reed switch is arranged in the housing, and the reed switch includes a tube body, two reed pieces and two pins, and the two reed pieces are respectively connected with the two reed pieces. The pins are electrically connected, and the two reed pieces are arranged in the tube body; the two dry reed pieces can be in contact or separated by magnetic action;

A working circuit, in which the reed switches are connected in series; when the two reed sheets are in contact, the working circuit is turned on; when the two dry reed sheets are separated, the working circuit is disconnected.

According to an embodiment of the present invention, the working circuit is arranged on a printed circuit board, and the printed circuit board is installed in the housing.

According to an embodiment of the present invention, it also includes:

a charging plug installed at the front end of the accommodating cavity, the charging plug having built-in connection terminals; and

A charging cable is inserted into the housing from the rear end of the accommodating cavity, and the charging cable is electrically connected with the connection terminal.

According to an embodiment of the present invention, the charging gun is an electric vehicle charging device.

Compared with the prior art, in the charging gun housing assembly and the charging gun provided by the present invention, the locking key is arranged outside the housing and is rotatably arranged on the housing. Rotating one end of the locking key can move the magnetic device provided at the other end of the locking key. Through the movement of the magnetic device, the magnetic field changes at the place where the reed switch is located, so that the two reed pieces in the reed switch can be contacted or separated, so as to connect or disconnect the working circuit.

The locking key outside the casing can be moved by the magnetic device to control the contact or separation of the two dry reeds in the casing. The locking key does not need to penetrate into the interior of the casing, no additional sealing member is required, and there is no problem of aging and failure of the sealing member. There is no direct contact between the locking key and the dry reed switch. The non-contact switch structure has a high working life and can effectively solve the mechanical aging problem of the contact micro switch. The non-contact switch has the advantages of simple structure, small volume, fast triggering speed and high working reliability.

The two dry reeds only need to be in contact or separated state, the size chain is less than that of the direct contact micro switch, and the action position accuracy of the locking key can be set lower.

The dry reed switch is directly connected in series in the working circuit, no external circuit is required, no additional power supply is required, and the cost is low.

The utility model is particularly suitable for use as a charging device for electric vehicles.

Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings.

Description of drawings

FIG. 1 is a schematic structural diagram of a charging gun provided by a preferred embodiment of the present invention.

FIG. 2 is an exploded view of the parts of the charging gun of FIG. 1 .

FIG. 3 is a schematic structural diagram of the charging gun of FIG. 1 after removing the protective cover.

FIG. 4 is a top view of the charging gun of FIG. 1 after removing the protective cover and the protective cover.

FIG. 5 is a cross-sectional view taken along the direction A-A in FIG. 4 .

FIG. 6 is a schematic diagram of the magnetic action of the magnetic device in the charging gun of FIG. 1 .

FIG. 7 is a front view of FIG. 6 .

Among them, 100: charging gun; 200: accommodating cavity; 10: shell; 11: bottom shell; 12: upper cover; 15: spring; 20: locking key; 21: one end; 22: the other end; 26: rotating shaft ; 28: shaft support; 30: magnetic device; 32: fixing part; 40: first magnetic conducting part; 401: first bending part; 402: first concave part; : the first vertical section; 43: the first lower laterally extending section; 44: the third vertical section; 45: the first laterally extending section; 50: the second magnetic conductor; 501: the second bending part; 51: second upper laterally extending section; 52: second vertical section; 53: second lower laterally extending section; 54: fourth vertical section; 55: second laterally extending section; 58: gap ;59: Accommodating space; 60: Reed; 66: Printed circuit board; 80: Charging plug; 81: Terminal support; 82: Connection terminal; 84: Protective cover; 85: Charging cable; 90: Protective cover;

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in detail:

Please refer to FIG. 1 and FIG. 2 , which are a charging gun provided by a preferred embodiment of the present invention. The charging gun 100 includes a housing assembly, a switch device for a charging circuit of the charging gun, a working circuit, a charging plug 80 and a charging cable 85 . The housing assembly includes a housing 10, a locking key 20 and a switch device for the charging circuit of the charging gun. The housing 10 surrounds an accommodating cavity. The working circuit is installed in the accommodating cavity of the casing 10 . In this embodiment, the working circuit is disposed on the printed circuit board 66, and the printed circuit board 66 is installed in the accommodating cavity. The switch device includes a switch member and a magnetic device; the switch member is electrically connected to the charging circuit of the charging gun, and has a closed state and an open state; at least part of the magnetic device is movably arranged relative to the switch member; When the magnetic device is moved, the switching element is switched between its closed state and its open state to make or break a working circuit, such as a charging circuit. The magnetic device includes a magnet, a first magnetic conductive member and a second magnetic conductive member. The switch element further includes a reed switch, the reed switch is arranged in the housing, and the reed switch includes a tube body, two reed pieces and two pins.

Referring to FIG. 3 , the locking key 20 is located outside the casing 10 . The locking key 20 is reciprocally rotatably mounted on the housing 10 through a rotating shaft 26 . A rotating shaft support 28 is provided on the outer surface of the housing 10 . The rotating shaft support 28 and the locking key 20 are provided with perforations corresponding to positions, and the rotating shaft 26 is rotatably penetrated through the perforations. In this embodiment, a spring 15 may be disposed between one end 21 of the locking key 20 and the housing 10 . When the user presses one end 21 of the locking key 20 to rotate the locking key 20, the spring 15 is elastically deformed and drives the other end 22 of the locking key 20 to move. After the external force pressing the locking key 20 disappears, the elastic force of the spring 15 is released, which drives the locking key 20 to return to the initial position.

The locking key 20 extends along a selected length. The rotating shaft 26 is disposed between two ends of the locking key 20 in the length direction. The locking key 20 is a lever structure. One end 21 of the locking key 20 can be pressed to drive the locking key 20 to move around the rotating shaft 26 . The magnetic device 30 is disposed at the other end 22 of the locking key 20 and can move with the other end 22 of the locking key 20 . In this embodiment, the magnetic device 30 includes a permanent magnet fixedly disposed on the other end 22 of the locking key 20 . The permanent magnet can be fixedly connected to the locking key 20 by snap connection, adhesive bonding, interference fit or other methods. For example, the other end 22 of the locking key 20 may be provided with a mounting slot, the permanent magnet may be pressed into the mounting slot by the fixing member 32 , and the fixing member 32 and the locking key 20 may pass through. It can be fixed by means of fitting or snap connection.

During use, when one end 21 of the locking key 20 is pressed by an external force, the locking key 20 can rotate around the rotating shaft 26, and the other end 22 of the locking key 20 moves accordingly, driving the The magnetic device 30 moves.

Please refer to FIG. 4 and FIG. 5 , the reed switch is disposed in the accommodating cavity 200 of the housing 10 . At least part of the ends of the two dry reeds 60 overlap and leave a certain gap or contact each other to form normally open or normally closed contacts of the switch. The two dry reeds 60 can be contacted or separated by the magnetic action of the magnetic device 30 .

The two dry reeds 60 are connected in series in the working circuit. When the two dry reeds 60 are in contact, the working circuit is turned on. When the two dry reeds 60 are separated, the working circuit is disconnected.

In this embodiment, the two dry reeds 60 may be in a separated state when they are not magnetized. When the one end 21 of the locking key 20 is forced to move, it will drive the magnetic device 30 to move, so that the magnetic field near the two reeds 60 changes. When the two dry reeds 60 are magnetized, the two dry reeds 60 will be attracted by the magnetic force and elastically deform until they are in contact, so that the working circuit is connected. When the magnetic force decreases to a certain extent or disappears, the two dry reeds 60 are elastically released, and the two dry reeds 60 are separated, so that the working circuit is disconnected. Of course, in other embodiments, the two dry reeds 60 may also be in a state of contact when they are not magnetized.

In order to enable the two dry reeds 60 to be in contact with or to be separated by the magnetic action of the magnetic device 30, in this embodiment, as shown in FIG. 3 and FIG. 5 , the housing assembly of the charging gun 100 further includes a first A magnetic conductive member 40 and a second magnetic conductive member 50 . The first magnetic conductive member 40 and the second magnetic conductive member 50 are disposed on the casing 10 at intervals, and are used to conduct the magnetism of the magnetic device 30 located outside the casing 10 into the casing 10 , Acting on the two dry reeds 60 .

Both the first magnetic conductive member 40 and the second magnetic conductive member 50 are disposed through the casing 10 and extend from the outside of the casing 10 to the inside of the casing 10 . The first magnetic conductive member 40 and the second magnetic conductive member 50 can conduct the magnetism of the two poles of the magnetic device 30 located outside the casing 10 into the casing 10 respectively, and act on the two poles. Reed 60. In this embodiment, the casing 10 is a single piece with the first magnetic conductive member 40 and the second magnetic conductive member 50 . For example, the first magnetic conductive member 40 and the second magnetic conductive member 50 may be at least partially insert-molded in the housing 10 .

The first magnetic conductive member 40 extends from one end to the other end, and extends from the outside of the casing 10 to the inside of the casing 10 . The second magnetic conductive member 50 extends from one end to the other end, and extends from the outside of the casing 10 to the inside of the casing 10 . One end of the first magnetic conductive member 40 and one end of the second magnetic conductive member 50 are both located outside the casing 10 , and a gap 58 is set between them. The magnetic device 30 can be connected with the locking key 20 . Move to the setting of the gap 58 .

The other end of the first magnetic conductive member 40 and the other end of the second magnetic conductive member 50 are both located in the casing 10 . The other end of the first magnetic conductive member 40 is disposed in non-contact with the other end of the second magnetic conductive member 50 . For example, the other end of the first magnetic conductive member 40 and the second magnetic conductive member 50 may be arranged with a gap or an interval, and the like. Specifically, the other end of the first magnetic conducting member 40 is provided with a first bending portion 401 , and the first bending portion 401 is bent and arranged in the direction of the magnetic device 30 . The other end of the second magnetic conductive member 50 is provided with a second bending portion 501 , and the second bending portion 501 is bent in the opposite direction toward the magnetic device 30 . The first bending portion 401 and the second bending portion 501 are positioned opposite to each other, forming a accommodating space 59 that can accommodate a reed switch. The reed switch is arranged in the accommodating space 59 .

The other end of the first magnetic conductive member 40 may be provided with a first concave portion 402 ; and/or the other end of the second magnetic conductive member 50 may be provided with a second concave portion 502 . In this embodiment, the other end of the first magnetic conductive member 40 is provided with a first recessed portion 402 , and the other end of the second magnetically conductive member 50 is provided with a second recessed portion 502 . The first concave portion 402 and the second concave portion 502 are positioned opposite to each other to form an accommodating space 59 for accommodating the reed switch.

During use, an external force presses the locking key 20 to move the magnetic device 30 into the gap 58 between one end of the first magnetic conductive member 40 and one end of the second magnetic conductive member 50 . The first magnetic conductive member 40 and the second magnetic conductive member 50 respectively conduct the magnetism of the two poles of the magnetic device 30 to the accommodating space 59, and magnetize the two dry reeds 60. The reeds 60 are magnetically attracted into contact. When the external force disappears, one end of the locking key 20 automatically moves to the initial position under the action of the spring 15 , and the magnetic device 30 moves out of the gap 58 . The magnetic field lines in the accommodating space 59 are reduced, the two dry reeds 60 are elastically released, and the two dry reeds 60 are separated.

The structures of the first magnetic conductive member 40 and the second magnetic conductive member 50 may be the same or different. In this embodiment, please refer to FIG. 6 and FIG. 7 , the first magnetic conductive member 40 and the second magnetic conductive member 50 have the same structure. The first magnetic conductive member 40 and the second magnetic conductive member 50 are arranged in mirror images. The first magnetic conductive member 40 is or approximately has a C-shaped shape. The second magnetic conductive member 50 is or approximately has a C-shaped shape. The first magnetic conductive member 40 is opposite to the C-shaped opening of the second magnetic conductive member 50 .

Specifically, the first magnetic conductive member 40 includes a first vertical segment 42 . The second magnetic conductive member 50 includes a second vertical section 52 . The first vertical section 42 and the second vertical section 52 are arranged in parallel and spaced apart. The upper end of the first vertical section 42 is connected to the first upper laterally extending section 41 . The first upper laterally extending section 41 extends from the upper end of the first vertical section 42 toward the second vertical section 52 . The lower end of the first vertical section 42 is connected to the first lower laterally extending section 43 . The first lower laterally extending section 43 extends toward the second vertical section 52. The upper end of the second vertical section 52 is connected to the second upper laterally extending section 51 . The second upper laterally extending section 51 extends from the second vertical section 52 toward the first vertical section 42 . The first upper laterally extending section 41 and the second upper laterally extending section 51 form the gap 58 . The lower end of the second vertical section 52 is connected to the second lower laterally extending section 53 . The second lower laterally extending section 53 extends toward the first vertical section 42 .

An end of the first lower laterally extending section 43 is connected to a third vertical section 44 , and the third vertical section 44 extends toward the first upper laterally extending section 41 . The end of the third vertical section 44 is connected to the first laterally extending section 45 . The first laterally extending section 45 extends toward the second magnetic conducting member 50 . The end of the second lower laterally extending section 53 is connected to a fourth vertical section 54 , and the fourth vertical section 54 extends toward the second upper laterally extending section 51 . The end of the fourth vertical section 54 is connected to the second laterally extending section 55 . The second laterally extending section 55 extends toward the first magnetic conducting member 40 . The first laterally extending section 45 and the second laterally extending section 55 are located opposite to each other with a gap therebetween.

In order to accommodate the reed switch between the first magnetic conductive member 40 and the second magnetic conductive member 50 , the third vertical section 44 is spaced from the fourth vertical section 54 by a selected distance set up. The first lower laterally extending section 43, the third vertical section 44, the first laterally extending section 45, the second laterally extending section 55, the fourth vertical section 54 and the second lower laterally extending section 53 are enclosed for accommodating The accommodating space 59 for the reed switch.

In this embodiment, the accommodating cavity 200 extends along a selected direction for a selected length. Two ends of the accommodating cavity 200 along the extending direction thereof are provided with openings, which are the front end and the rear end respectively. The charging plug 80 is installed at the front end of the accommodating cavity 200 . The charging plug 80 includes a terminal support 81 and a connection terminal 82 built in the terminal support 81 . The terminal supporter 81 is sealedly connected to the housing 10 . For example, a sealing member may be provided between the terminal support member 81 and the housing 10 or a sealing connection may be used in other connection manners. The connection terminal 82 is at least partially structurally accommodated and installed in the terminal support 81 . For example, a protective cover 84 is detachably connected to the charging plug 80 . The charging cable 85 penetrates into the housing 10 from the rear end of the accommodating cavity 200 . A sealing member may be provided between the charging cable 85 and the housing 10 , or a sealing connection may be used in other ways. The charging cable 85 is electrically connected to the connecting terminal 82 for power supply. The charging cable 85 can be plugged into the charging socket of the charging car to realize charging.

The specific structure of the housing 10 can be specifically set as required. The housing 10 can be assembled from a plurality of separate components. In this embodiment, the housing 10 includes a bottom case 11 and an upper cover 12 . The bottom case 11 and the upper cover 12 are connected to each other and together form the accommodating cavity 200 . The locking key 20 is rotatably mounted on the upper cover 12 through a rotating shaft 26. The first magnetic conductive member 40 and the second magnetic conductive member 50 are disposed through the bottom case 11 .

The housing 10 may also be provided with a cover 90 . The protective cover 90 and the upper cover 12 are connected to each other, and together they enclose a protective cavity. At least part of the structure of the locking key 20 is accommodated and arranged in the protection cavity.

The “up” and “down” directions in the present invention are relative concepts used with reference to the directions marked in FIG. 6 ; the “horizontal” and “vertical” directions are used with reference to the directions marked in FIG. 7 . Relatively speaking, the horizontal direction is the left-right direction with reference to FIG. 7 , and the vertical direction is the up-down direction with reference to FIG. 7 .

In the charging gun housing assembly and the charging gun provided by the utility model, the locking key is arranged outside the housing and is rotatably arranged on the housing. Rotating one end of the locking key can move the magnetic device provided at the other end of the locking key. Through the movement of the magnetic device, the magnetic field changes at the place where the reed switch is located, so that the two reed pieces in the reed switch can be contacted or separated, so as to connect or disconnect the working circuit.

The locking key outside the casing can be moved by the magnetic device to control the contact or separation of the two dry reeds in the casing. The locking key does not need to penetrate into the interior of the casing, no additional sealing member is required, and there is no problem of aging and failure of the sealing member. The reed sheet and the magnetic device are arranged in a non-contact manner, and there is no direct contact between the locking key and the reed switch. This non-contact switch structure has a high working life and can effectively solve the mechanical problems of the contact micro switch. aging problem. The non-contact switch has the advantages of simple structure, small volume, fast triggering speed and high working reliability.

The two dry reeds only need to be in contact or separated state, the size chain is less than that of the direct contact micro switch, and the action position accuracy of the locking key can be set lower.

The dry reed switch is directly connected in series in the working circuit, no external circuit is required, no additional power supply is required, and the cost is low.

The above are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements or improvements within the spirit of the present invention are all included within the scope of the claims of the present invention. .

Claims (23)

1. being used for the switching device of charging gun charging circuit characterized by comprising

Switch member, the switch member are electrically connected with the charging circuit of charging gun, and are equipped with closed state and off-state；And

Magnetic devices (30), at least partly described relatively described switch member of magnetic devices (30) are movably disposed；

When the magnetic devices are mobile, convert the switch member between its closed state and off-state, to lead on-off Open charging circuit.

2. switching device according to claim 1, which is characterized in that the magnetic devices (30) include magnet.

3. switching device according to claim 2, which is characterized in that the magnetic devices further include the first magnetic conductive part (40) With the second magnetic conductive part (50), first magnetic conductive part (40) and the setting of the second magnetic conductive part (50) interval, for conducting the magnetic The magnetism of property device (30).

4. switching device according to claim 3, which is characterized in that first magnetic conductive part (40) and second magnetic conduction Part (50) structure is identical and is in mirror settings.

5. switching device according to claim 3, which is characterized in that first magnetic conductive part (40) extends to separately from one end One end, second magnetic conductive part (50) extend to the other end from one end；It is led with described second described first magnetic conductive part (40) one end It is provided with gap between magnetic part (50) one end, the magnet can be moved to charging gun lock key (20) described to be arranged with gap.

6. switching device according to claim 5, which is characterized in that the first magnetic conductive part (40) other end and described the Two magnetic conductive parts (50) other end is non-contactly arranged.

7. switching device according to claim 5, which is characterized in that the first magnetic conductive part (40) other end is provided with One recessed portion (402), and/or second magnetic conductive part (50) are provided with the second recessed portion (502)；First recessed portion (402) it is oppositely arranged with the second recessed portion (502) position.

8. switching device according to claim 5, which is characterized in that the first magnetic conductive part (40) other end is provided with One bending part (401), first bending part (401) bend towards the magnet；Second magnetic conductive part (50) other end setting Have the second bending part (501), second bending part (501) bends towards the magnet；First bending part (401) with it is described Second bending part (501) position is oppositely arranged, and forms the accommodation space (59) that can accommodate tongue tube.

9. switching device according to claim 3, which is characterized in that first magnetic conductive part (40) includes the first vertical section (42), it is laterally extended section (41) in the first vertical section (42) upper end connection first, the first vertical section (42) lower end connects Section (43) are laterally extended under connecing first；Second magnetic conductive part (50) includes the second vertical section (52), second vertical section (52) it is laterally extended section (51) in upper end connection second, is laterally extended section under the second vertical section (52) lower end connection second (53)；First magnetic conductive part (40) and the second magnetic conductive part (50) mirror settings.

10. switching device according to claim 9, which is characterized in that be laterally extended section (43) end company under described first It connects third vertical section (44), the third vertical section (44) extends towards section (41) are laterally extended on described first；The third Vertical section (44) end connection first is laterally extended section (45), and described first is laterally extended section (45) towards the second magnetic conductive part (50) Extend；It is laterally extended section (53) end under described second and connects the 4th vertical section (54), the 4th vertical section (54) is towards institute It states and is laterally extended section (51) extension on second；4th vertical section (54) end connection second is laterally extended section (55), described Second is laterally extended section (55) extends towards the first magnetic conductive part (40)；Described first is laterally extended section (45) and described second laterally Extended segment (55) position is opposite, has be arranged with gap between the two.

11. switching device according to claim 10, which is characterized in that be laterally extended section (43), third under described first Vertical section (44), first are laterally extended section (45), second are laterally extended section (55), the 4th vertical section (54) and second lower laterally prolong It stretches section (53) and surrounds accommodation space (59) for accommodating tongue tube.

12. switching device according to claim 4, which is characterized in that first magnetic conductive part (40) is C glyph shape； Second magnetic conductive part (50) is C glyph shape.

13. switching device according to claim 1, which is characterized in that the switch member further includes tongue tube, the dry spring Pipe is set in shell (10), and the tongue tube includes tube body, two dry reeds (60) and two pins, described two dry reeds (60) it is electrically connected respectively with two pins, described two dry reeds (60) are set in the tube body；Described two dry reeds (60) it can be in contact or be separated by magnetic action；

The dry reed is non-contactly arranged with the magnetic devices.

14. charging gun housing unit characterized by comprising

Shell (10), the shell (10) are provided with accommodating cavity (200)；

Lock key (20), the lock key (20) are located at the shell (10) outside, and the lock key (20) can by shaft (26) It is rotatably arranged on the shell (10), when lock key (20) one end (21) is pressurized, can be rotated around the shaft (26) Ground setting；

It further include switching device described in claim 1 to 13 any claim, the magnetic devices (30) are arranged described The other end (22) of lock key (20), it is mobile with the lock key (20) other end (22).

15. charging gun housing unit according to claim 14, which is characterized in that in one end of the lock key (20) (21) spring (15) are equipped between the shell (10)；

When one end (21) of the lock key (20) is rotated by external force, make the spring (15) flexible deformation；

After external force disappears, spring (15) elastic force discharges and the lock key (20) is driven to return back to initial position.

16. charging gun housing unit according to claim 14, which is characterized in that the magnetic devices include the first magnetic conduction Part (40) and the second magnetic conductive part (50) are both arranged through the shell (10), extend to from the outside of the shell (10) The inside of the shell (10).

17. charging gun housing unit according to claim 16, which is characterized in that first magnetic conductive part (40), described Second magnetic conductive part (50) and the shell (10) are integrated.

18. charging gun housing unit according to claim 14, which is characterized in that the shell (10) includes bottom case (11) With upper cover (12), the bottom case (11) is connected with the upper cover (12) and surrounds the accommodating cavity (200)；The lock key (20) upper cover (12) are rotatablely arranged at by shaft (26).

19. charging gun housing unit according to claim 18, which is characterized in that further include protecting cover (90), the protecting cover (90) it is connected with the upper cover (12) and is surrounded by protection chamber, the lock key (20) is at least partially housed in the protection chamber It is interior.

20. charging gun characterized by comprising

Shell (10), the shell (10) are provided with accommodating cavity (200)；

Lock key (20), the lock key (20) are located at the shell (10) outside, and the lock key (20) can by shaft (26) It is rotatably arranged on the shell (10), when lock key (20) one end (21) is pressurized, can be rotated around the shaft (26) Ground setting；

It further include switching device described in claim 1 to 13 any claim；

The switch member includes tongue tube, and the tongue tube is set in the shell (10), and the tongue tube includes tube body, two A dry reed (60) and two pins, described two dry reeds (60) are electrically connected with two pins respectively, described two dry reeds (60) it is set in the tube body；Described two dry reeds (60) can be in contact or be separated by magnetic action；

Operating circuit, the tongue tube of connecting in the operating circuit；When described two dry reeds (60) contact, the work electricity Road is connected；When described two dry reeds (60) separate, the operating circuit is disconnected.

21. charging gun according to claim 20, which is characterized in that the operating circuit is set to printed wiring board (66) On, the printed wiring board (66) is installed in the shell (10).

22. charging gun according to claim 20, which is characterized in that further include:

It is installed on the charging plug (80) of the accommodating cavity (200) front end, the charging plug (80) is built-in with connection terminal (82)；And

Charge cable (85), the rear end of the charge cable from the accommodating cavity (200) penetrates in the shell (10), described to fill Electric wire cable (85) and the connection terminal (82) are electrically connected.

23. charging gun according to claim 20, which is characterized in that the charging gun is electric vehicle charging device.