CN217823558U

CN217823558U - High-voltage interlocking structure for electric vehicle charging seat and charging device

Info

Publication number: CN217823558U
Application number: CN202123332884.5U
Authority: CN
Inventors: 王超; 赵生旭
Original assignee: Changchun Jetty Automotive Parts Co Ltd
Current assignee: Changchun Jetty Automotive Parts Co Ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-11-15
Anticipated expiration: 2031-12-28

Abstract

The utility model discloses a high-voltage interlocking structure and a charging device for an electric vehicle charging seat, which comprises a charging seat body; a connector, a back cover, a control device, a high-voltage interlock connector; the connector is detachably connected with the charging seat body; the rear cover is detachably connected with the charging seat body, and the control device is arranged in the charging seat body; a high-voltage interlocking connector is arranged between the charging seat body and the connector, and/or the high-voltage interlocking connector is arranged between the charging seat body and the rear cover and is connected to a circuit where the control device is located; when any one of the high-voltage interlocking connectors is disconnected, the control device controls the charging seat to be disconnected with the power supply. According to the high-voltage interlocking structure for the electric vehicle charging seat and the charging device, when any male end connecting piece is separated from any female end connecting piece, the control device can automatically disconnect a high-voltage circuit, so that casualties can be prevented from occurring in maintenance or use of operating personnel.

Description

High-voltage interlocking structure for electric vehicle charging seat and charging device

Technical Field

The utility model relates to a connector technical field, more specifically relates to a high-pressure interlocking structure and charging device for electric vehicle charging seat.

Background

The problems of energy shortage and environmental pollution are two major problems which plague the development of the automobile industry and related industries all the time, and new energy automobiles are gradually the mainstream of the development of the automobile industry at present as solutions for solving the problems. Compared with the traditional automobile, one of the characteristics of the new energy automobile is that the new energy automobile usually works in the environment of high current and high voltage, and the environment of high current and high voltage far exceeds the safe voltage of a human body. And the traditional charging seat has low reliability and great potential safety hazard. The use requirements of the current new energy automobile cannot be met.

Therefore, there is a need in the field of electric vehicle charging technology for a charging base that can be quickly disassembled, and when the charging base is disassembled or the rear cover of the charging base is opened, the vehicle automatically disconnects the high-voltage circuit, thereby protecting the safety of the operator.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a new technical scheme that is used for the high pressure interlocking structure of electric vehicle charging seat.

According to a first aspect of the present invention, there is provided a high voltage interlock structure for a charging stand of an electric vehicle, comprising,

a charging base;

at least one connector, the connector is detachably connected with the charging seat body;

the rear cover is detachably connected with the charging seat body;

a control device disposed in the charging stand body or the electric vehicle;

the high-voltage interlocking connector is arranged between the charging seat body and the connector, and/or the high-voltage interlocking connector is arranged between the charging seat body and the rear cover and is connected to a circuit where the control device is located;

when any one of the high-voltage interlocking connectors is disconnected, the control device controls the charging seat to be disconnected with the power supply.

Optionally, each high-voltage interlocking connector comprises a male end connector and a female end connector which are inserted into each other; the connector is provided with the male end connecting piece, and/or the rear cover is provided with the male end connecting piece; the charging seat body is provided with the female end connecting piece and is connected with the male end connecting piece in a one-to-one correspondence mode.

Optionally, still include the installation department, the installation department sets up the connector and/or on the back lid, the installation department with the integrative injection moulding of public end connecting piece or detachable connects.

Optionally, the male end connector comprises a conductive material, the male end connector is U-shaped or V-shaped, and two ends of the U-shaped or V-shaped protrude out of the mounting surface of the mounting portion.

Optionally, a chamfer or a pilot circle is arranged at the front end of the U-shaped or V-shaped male end connecting piece.

Optionally, the male end connector comprises a conductive material, the male end connector is U-shaped or V-shaped, the mounting portion further comprises a cavity with an opening at one end, and two ends of the U-shaped or V-shaped protrude out of the bottom surface of the cavity.

Optionally, each female end connector comprises an interlocking connecting seat (and two connecting terminals, two through holes are arranged in the interlocking connecting seat, the two connecting terminals are respectively installed in the corresponding through holes, one end of each connecting terminal is electrically connected with the control device, and the other end of each connecting terminal is electrically connected with the corresponding male end connector.

Optionally, the connector further comprises a clamping sheet and a clamping groove, the clamping sheet is arranged on one of the periphery of the connecting terminal and the corresponding inner wall of the through hole, and the clamping groove is arranged on the other of the periphery of the connecting terminal and the corresponding inner wall of the through hole.

Optionally, each of the interlocking connection seats and the charging seat body are integrally injection-molded or detachably connected.

Optionally, the top of the connection terminal is lower than the top of the through hole, the male connector is in a U shape or a V shape, and two ends of the U shape or the V shape are respectively inserted into the corresponding through holes to be electrically connected with the connection terminals therein.

Optionally, the contact resistance between the male end connector and the connection terminal is less than 9m Ω.

Optionally, the interlocking connection seat comprises a base and a protrusion, and the two through holes respectively penetrate through the base and the protrusion; the male end connecting piece is fixedly connected with the mounting part of the connector or the rear cover, the male end connecting piece is U-shaped or V-shaped, the mounting part also comprises a cavity with an opening at one end, and two ends of the U-shaped or V-shaped are protruded out of the bottom surface of the cavity; the protruding part is in plug-in fit with the cavity, and two ends of the U-shaped or V-shaped are respectively inserted into the through hole to be electrically connected with the connecting terminal.

Optionally, when the connector or the rear cover and the charging seat body are located at the installation position, the two ends of the U-shaped or the V-shaped are spliced and overlapped with the connection terminal.

Optionally, a sealing device is disposed between the connector and the charging seat body.

Optionally, the connector and the rear cover are connected to the charging base body by one or more of an adhesive connection, a magnetic attraction connection, a bayonet connection, a plug connection, and a locking connection.

According to a first aspect of the present invention, there is provided a charging device, comprising a charging terminal and a cable and a high voltage interlock structure for a charging seat of an electric vehicle as described above, wherein the charging terminal is connected to the cable and disposed in the charging seat for conducting a high voltage current; when the connector and/or the rear cover are completely separated from the charging seat body, the male end connector and the female end connector are disconnected, signals are given to the control device at the same time, and the control device disconnects the high-voltage current in the cable.

Optionally, the charging terminal is connected with the opposite plug terminal of the opposite end to conduct current, and when the male end connecting piece and the female end connecting piece are about to be disconnected, the charging terminal is not separated from the opposite plug terminal.

According to this high-voltage interlocking structure who is used for electric vehicle charging seat of disclosing, have following effect:

1. through the high-voltage interlocking structure for the electric vehicle charging seat, when any male end connecting piece is separated from any female end connecting piece, the control device can automatically disconnect a high-voltage circuit, and casualties are prevented from occurring in maintenance or use of operating personnel.

2. Through set up two high-voltage interlocking connectors on a charging seat, can make things convenient for operating personnel as required, select the high-voltage interlocking connector that needs open, make things convenient for operating personnel maintenance equipment.

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

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is an exploded view of a high voltage interlock arrangement for an electric vehicle charging stand in accordance with the present invention;

fig. 2 is a schematic view of a connector according to the present invention;

fig. 3 and 4 are schematic views of the middle and rear covers of the present invention;

fig. 5 is a schematic view of a charging base of the present invention;

fig. 6 is a schematic perspective view of the charging base of the present invention;

fig. 7 is a cross-sectional view of the charging base of the present invention;

FIG. 8 is an enlarged view taken at A in FIG. 7;

fig. 9 is a cross-sectional view of the charging base of the present invention;

FIG. 10 is an enlarged view at B of FIG. 9;

fig. 11 is a schematic structural view of the interlocking connection seat of the present invention;

fig. 12 is a cross-sectional view of the interlocking connector socket of the present invention.

The figures are labeled as follows:

1-a charging base; 11-plug-in terminals; 2-a connector; 21-a charging terminal; 3-rear cover; 4-male end connector; 5-female end connector; 51-interlocking connection seats; 52-connection terminals; 514-a guide; 511-base; 512-a protrusion; 513-through holes; 6-an installation part; 61-a mounting surface; 7 sealing the device.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

A high voltage interlock structure for an electric vehicle charging stand, as shown in fig. 1 to 5, of the present disclosure includes,

a charging base body 1;

at least one connector 2, wherein the connector 2 is detachably connected with the charging seat body 1;

the rear cover 3 is detachably connected with the charging seat body 1;

a control device disposed in the charging stand 1 or in an electric vehicle;

a high-voltage interlocking connector is arranged between the charging seat body 1 and the connector 2, and/or a high-voltage interlocking connector is arranged between the charging seat body 1 and the rear cover 3, and the high-voltage interlocking connector is connected to a circuit where the control device is located;

In a specific implementation, the connector 2 may be an ac connector or a dc connector. The connector 2 is connected with a power supply and an energy storage device (such as a new energy automobile battery), the energy of the power supply is transmitted to the energy storage device, the charging seat is inevitably maintained in the using process, and when the connector 2 or the rear cover 3 is detached, if the connector is not disconnected with the power supply, the risk of electric shock and casualty caused by circuit short circuit exists.

In specific implementation, if only one ac connector is disposed on the charging stand, the high-voltage interlock connector includes a first high-voltage interlock connector and a second high-voltage interlock connector, the first high-voltage interlock connector is disposed between the charging base 1 and the connector 2, and/or the second high-voltage interlock connector is disposed between the charging base 1 and the rear cover 3, and the high-voltage interlock connector is connected to a circuit where the control device is located;

the control device is configured to control the charging seat to be disconnected with the power supply when the high-voltage interlocking connector is disconnected.

When the high-voltage interlocking connector is used in specific implementation, when one high-voltage interlocking connector is disconnected, the control device can automatically control the charging seat to be disconnected with the power supply, and casualties of operators in maintenance or use are avoided. Through setting up two high-voltage interlocking connectors on a charging seat, can make things convenient for operating personnel as required, select the high-voltage interlocking connector that conveniently opens, make things convenient for operating personnel maintenance of equipment.

In specific implementation, the high-voltage interlocking connector is arranged between the connector 2 and the charging seat body 1, so that the connector 2 can be separated from the charging seat body 1 in the installation process, the control device controls the charging seat to be disconnected with a power supply, and an electric shock caused by touching a conductive device in the connector 2 by an operator in the process of installing the charging seat is avoided; through setting up the high voltage interlocking connector between lid 3 and the charging base 1, can prevent to forget when the connector 2 separates with charging base 1 in the maintenance process, take off the in-process of 3 maintenance of back lid, can accomplish the separation of charging seat and power, prevent that operating personnel from electrocuting the casualties.

In an embodiment of the high-voltage interlocking structure for an electric vehicle charging stand according to the present disclosure, as shown in fig. 6 to 10, each of the high-voltage interlocking connectors includes a male terminal connector 4 and a female terminal connector 5 that are inserted into each other; the connector 2 is provided with the male end connecting piece 4, and/or the rear cover 3 is provided with the male end connecting piece 4; the charging seat body 1 is provided with the female end connecting pieces 5 and is connected with the male end connecting pieces 4 in a one-to-one correspondence mode.

In specific implementation, the first high-voltage interlocking connector comprises a male end connector 4 and a female end connector 5 which are mutually inserted; the male end connector 4 is arranged on one of the connector 2 and the charging base 1, and the female end connector 5 is arranged on the other of the connector 2 and the charging base 1; the second high-voltage interlocking connector comprises a male end connector 4 and a female end connector 5 which are mutually inserted; the male connector 4 is disposed on one of the rear cover 3 and the charging base 1, and the female connector 5 is disposed on the other of the rear cover 3 and the charging base 1.

During specific implementation, the high-voltage interlocking connector is arranged into the male end connecting piece 4 and the female end connecting piece 5 which are mutually inserted, so that the high-voltage interlocking connector can be conveniently disconnected and connected, and an operator can conveniently use the high-voltage interlocking connector.

Further, still include installation department 6, installation department 6 sets up connector 2 or on the back lid 3, installation department 6 with the integrative injection moulding of public end connecting piece 4 or detachable connection.

In specific implementation, the male connector 4 is disposed on one of the connector 2 and the charging seat 1, and the female connector 5 is disposed on the other of the connector 2 and the charging seat 1; alternatively, the male connector 4 is disposed on one of the rear cover 3 and the charging base 1, and the female connector 5 is disposed on the other of the rear cover 3 and the charging base 1. At this time, the mounting part 6 is disposed on one of the connector 2 and the charging base 1 and is disposed to match with the male connector 4; the mounting part 6 is arranged on one of the rear cover 3 or the charging seat body 1 and is matched with the male end connecting piece 4; the installation part 6 and the male end connecting piece 4 are connected in an integrated injection molding mode or in a detachable mode.

During concrete implementation, public end connecting piece 4 and 6 connected modes of installation department can set up according to actual need, connect through the integrative mode of moulding plastics, and the connection between the two is more firm, connects through dismantling the connected mode, and between interconnect's the two, can change under the circumstances that one side damaged.

Further, as shown in fig. 2 to 4, the male terminal connector 4 includes a conductive material, the male terminal connector 4 is U-shaped or V-shaped, and two ends of the U-shaped or V-shaped protrude from the mounting surface 61 of the mounting portion 6.

In particular, the male connector 4 is configured as a U-shaped male connector or a V-shaped male connector, both ends of which protrude from the mounting surface 61 of the mounting portion 6. During concrete implementation, the accessible sets up public end connecting piece 4 into U type public end connecting piece or V type public end connecting piece, and the both ends of U type public end connecting piece 4 or V type public end connecting piece 4 are outstanding in mounting surface 61, make things convenient for being connected of public end connecting piece 4 and female end connecting piece 5, convenient operation.

Furthermore, the front end of the U-shaped or V-shaped male end connecting piece 4 is provided with a chamfer or a pilot circle.

During the concrete implementation, also can set up guide portion 514 at the direction of through-hole 513 top towards connecting terminal 52, the inside radial dimension that guide portion 514 is from through-hole 513 top towards connecting terminal 52 top diminishes gradually, public end connecting piece 4 tip can get into through-hole 513 through guide portion 514 and accomplish plug-in connection with connecting terminal 52, through set up chamfer or radius at the front end of public end connecting piece 4, when inserting it in connecting terminal 52 top, or when inserting through-hole 513 top and set up guide portion 514, it is more convenient.

Furthermore, the male end connecting piece 4 comprises a conductive material, the male end connecting piece 4 is U-shaped or V-shaped, the mounting part 6 further comprises a cavity with one open end, and two ends of the U-shaped or V-shaped protrude out of the bottom surface of the cavity.

In specific implementation, the mounting portion 6 further includes a cavity with at least one open end, and two ends of the U-shaped male connector or the V-shaped male connector protrude out of the bottom surface of the cavity.

In specific implementation, the male end connecting piece 4 is set to be a U-shaped male end connecting piece or a V-shaped male end connecting piece, and two ends of the U-shaped male end connecting piece 4 or the V-shaped male end connecting piece 4 protrude out of the bottom surface of the cavity, so that the male end connecting piece 4 and the female end connecting piece 5 are conveniently connected, and the operation is convenient; through the public end connecting piece 4 that contains electrically conductive material, can realize being connected with female end connecting piece 5's electricity, controlling means is connected control charging seat and power intercommunication according to whether public end connecting piece 4 is connected with female end connecting piece 5 electricity.

Further, as shown in fig. 11 and 12, each female connector 5 includes an interlocking connector base 51 and two connecting terminals 52, two through holes 513 are disposed in the interlocking connector base 51, the two connecting terminals 52 are respectively installed in the corresponding through holes 513, one end of each connecting terminal 52 is electrically connected to the control device, and the other end of each connecting terminal 52 is electrically connected to the corresponding male connector 4.

In specific implementation, the female connector 5 includes an interlocking connector seat 51 and two connecting terminals 52, two through holes 513 are formed in the interlocking connector seat 51, the two connecting terminals 52 are respectively installed in the corresponding through holes 513, one end of each connecting terminal 52 is electrically connected to the control device, and the other end of each connecting terminal 52 is electrically connected to the corresponding male connector 4. Make things convenient for female end connecting piece 5 and U type public end connecting piece 4 or the both ends grafting of V type public end connecting piece 4, convenient operation, the practicality is strong.

Further, the connector further comprises a clamping sheet and a clamping groove, wherein the clamping sheet is arranged on one of the periphery of the connecting terminal 52 and the corresponding inner wall of the through hole 513, and the clamping groove is arranged on the other one of the periphery of the connecting terminal 52 and the corresponding inner wall of the through hole 513.

During the concrete implementation, through the setting of joint piece and draw-in groove, can prevent that connector 2 and back lid 3 from with the seat body 1's that charges being connected, at the separation of the charging seat charging process that fills, increase the stability of charging seat charging process.

Further, each of the interlocking connection bases 51 is integrally injection-molded or detachably connected with the charging base body 1.

In specific implementation, the male connector 4 is disposed on one of the connector 2 and the charging seat 1, and the female connector 5 is disposed on the other of the connector 2 and the charging seat 1; alternatively, the male connector 4 is disposed on one of the rear cover 3 and the charging base 1, and the female connector 5 is disposed on the other of the rear cover 3 and the charging base 1. At this time, the interlocking connection piece 51 is integrally injection-molded or detachably connected with the connector 2; or, the interlocking connector 51 and the rear cover 3 are integrally injection-molded or detachably connected; or, the interlocking connector 51 and the charging seat body 1 are integrally injection-molded or detachably connected.

During concrete implementation, interlocking connecting seat 51 and the connected mode of charging pedestal 1, interlocking connecting seat 51 with the connected mode of connector 2, interlocking connecting seat 51 with the connected mode of back lid 3 can set up as required, and through the mode connection of moulding plastics of an organic whole, the connection between the two is more firm, connects through dismantling the connected mode, and between interconnect, change under the condition that one side damaged.

Further, the top of the connection terminal 52 is lower than the top of the through hole 513, the male terminal connector 4 is U-shaped or V-shaped, and two ends of the U-shaped or V-shaped are respectively inserted into the corresponding through holes 513 to be electrically connected with the connection terminal 52.

In specific implementation, the top of the connection terminal 52 is lower than the top of the through hole 513, and two ends of the U-shaped male end connector or the V-shaped male end connector are respectively inserted into the corresponding through holes 513 to be electrically connected with the connection terminal 52.

When the charging socket is specifically implemented, the male end connecting piece 4 is constructed into a U-shaped male end connecting piece or a V-shaped male end connecting piece, the charging socket can be conveniently connected with the female end connecting piece 5 in an inserting mode, the female end connecting piece 5 can be connected into a loop, the control device controls the charging socket to be communicated with a power supply, the male end connecting piece 4 can be conveniently and completely separated from the female end connecting piece 5, at the moment, the control system controls the charging socket to be disconnected with the power supply according to signals of disconnection of the male end connecting piece 4 and the female end connecting piece 5, and the operation is simple.

Further, the contact resistance between the male terminal connector 4 and the connection terminal 52 is less than 9m Ω.

In one embodiment, the contact resistance between the male connector 4 and the connection terminal 52 is less than 9m Ω. Preferably, the contact resistance between the male terminal connector 4 and the connection terminal 52 is less than 1m Ω. Generally, a large current needs to be conducted between the male connector 4 and the connection terminal 52, if the contact resistance between the male connector 4 and the connection terminal 52 is greater than 9m Ω, a large temperature rise occurs at the contact position, and the temperature is higher and higher along with the increase of time, and the temperature between the male connector 4 and the connection terminal 52 is too high, which may cause internal stress between the male connector 4 and the connection terminal 52 and conductive anti-corrosion layers on the respective surfaces thereof, and may cause the falling of the conductive anti-corrosion layers in a serious case, so that the protection effect cannot be realized. Secondly, too high temperature of the male connector 4 and the connecting terminal 52 causes melting of the corresponding insulating layer, which cannot play the role of insulation protection, and can cause the charging seat to be damaged or even burning due to short circuit in severe cases. Therefore, the inventors set the contact resistance between the male-end connector 4 and the connection terminal 52 to be less than 9m Ω.

In order to verify the influence of the contact resistance between the male terminal connector 4 and the connection terminal 52 on the temperature rise and the conductivity of the high-voltage interlocking structure, the inventor selects the same male terminal connector 4 and the connection terminals 52 with different contact resistances to test the conductivity and the temperature rise.

The conductivity test is to insert the male connector 4 and the connection terminal 52 into each other and then to detect the conductivity of the corresponding insertion position, and in this embodiment, the conductivity is greater than 99% as an ideal value.

The temperature rise test is to apply the same current to the plug-in structure, detect the temperature of the same position of the male connector 4 and the connecting terminal 52 before power-on and after temperature stabilization in a closed environment, and take the absolute value by taking the difference. In this example, a temperature rise greater than 50K is considered unacceptable.

Table 1, the effect of the contact resistance between the different male-end connections 4 and the connection terminals 52 on the conductivity and temperature rise:

as can be seen from table 1 above, when the contact resistance between the male end connector 4 and the connection terminal 52 is greater than 9m Ω, the temperature rise of the plugging structure exceeds 50K, and meanwhile, the conductivity of the plugging position between the male end connector 4 and the connection terminal 52 is less than 99%, which does not meet the standard requirement. Therefore, the inventors set the contact resistance between the male-end connector 4 and the connection terminal 52 to be less than 9m Ω. Meanwhile, the inventor finds that when the contact resistance is less than 1m Ω, the temperature rise amplitude is further remarkably reduced, and the conductivity is also high, so that the contact resistance between the male terminal connector 4 and the connection terminal 52 is preferably less than 1m Ω in the invention.

Further, the interlocking connection seat 51 includes a base 511 and a protrusion 512, and the two through holes 513 respectively penetrate through the base 511 and the protrusion 512; the male end connecting piece 4 is fixedly connected with the mounting part 6 of the connector 2 or the mounting part 6 of the rear cover 3, the male end connecting piece 4 is U-shaped or V-shaped, the mounting part 6 further comprises a cavity with an opening at one end, and two ends of the U-shaped or V-shaped protrude out of the bottom surface of the cavity; the protrusion 512 is inserted into the cavity, and two ends of the U-shape or the V-shape are respectively inserted into the through hole 513 to be electrically connected to the connection terminal 52.

In specific implementation, the interlocking connection seat 51 includes a base 511 and a protrusion 512, and the two through holes 513 respectively penetrate through the base 511 and the protrusion 512; the protrusion 512 is inserted into the cavity.

In specific implementation, the mounting portion 6 is set to be a cavity with at least one open end, and the protruding portion 512 is matched with the cavity in an inserting manner, so that the stability of connection between the male end connector 4 and the female end connector 5 can be further ensured, and the insecurity of connection between the male end connector 4 and the female end connector 5 can be prevented.

As shown in fig. 2 to 4, in the illustrated embodiment, the male terminal connector 4 is provided on the mounting portion 6, the mounting portion 6 is provided on the connector 2 or the rear cover 3, and the interlocking connection holder 51 is provided on the charging holder body 1; as for the embodiment in which the mounting portion 6 is disposed on the charging base 1 and the interlocking connection seat 51 is disposed on the connector 2 or the rear cover 3, although not shown in the drawings, the present invention is within the protection scope of the present invention.

Further, when the connector 2 or the rear cover 3 and the charging base 1 are located at the installation position, two ends of the U-shaped male connector or the V-shaped male connector are spliced and overlapped with the connection terminal 52.

In specific implementation, when the connector 2 or the rear cover 3 and the charging seat body 1 are located at the installation position, the male end connector 4 and the female end connector 5 can be in contact with each other to realize current conduction, and the length of the coincidence of the two ends of the U-shaped male end connector or the two ends of the V-shaped male end connector and the connecting terminal 52 is not specifically limited.

During specific implementation, the distance from the installation position of the charging seat body 1 to the complete separation position of the connector 2 or the rear cover 3 is not specifically limited, and only when the connector 2 or the rear cover 3 is connected with the charging seat body 1, the male end connecting piece 4 and the female end connecting piece 5 can be in contact with each other to realize current conduction, and when the connector 2 or the rear cover 3 is separated from the charging seat body 1, the operation is convenient.

In an embodiment of the present disclosure, in the high-voltage interlocking structure for the charging seat of the electric vehicle, a sealing device 7 is disposed between the connector 2 and the rear cover 3 and the charging seat 1.

During specific implementation, through the setting of sealing device 7, can prevent that dust and debris from entering into charging seat body 1, extension charging seat life.

In an embodiment of the disclosed high-voltage interlocking structure for an electric vehicle charging seat, the connector 2 and the rear cover 3 are connected to the charging seat 1 by one or more of a paste connection, a magnetic attraction connection, a bayonet connection, a plug connection, and a latch connection.

During concrete implementation, do not specifically prescribe a limit to connector 2 and back lid 3 and the connected mode between the pedestal 1 that charges, only need satisfy connector 2 with the pedestal 1 that charges, back lid 3 with can charge dismantling between the pedestal 1 to this satisfies the user as required, dismantles back lid 3 and connector 2, convenient and practical.

A charging device, any one of the above mentioned high voltage interlocking structure for electric vehicle charging seat of the charging terminal 21 and cable, the charging terminal 21 is connected with the cable and set in the charging seat body 1, used for conducting the high voltage current; when the connector 2 and/or the rear cover 3 are completely separated from the charging holder 1, the male terminal connector 4 and the female terminal connector 5 are disconnected, and a signal is given to the control device, so that the control device disconnects the high-voltage current in the cable.

In the specific implementation, the high-voltage interlocking structure for the electric vehicle charging seat is arranged in the charging device, so that when the connector 2 and/or the rear cover 3 are completely separated from the charging seat body 1, the male end connecting piece 4 and the female end connecting piece 5 are disconnected, and meanwhile, a signal is given to the control device, and the control device disconnects the high-voltage current in the cable, so that the safety of an operator is ensured.

In an embodiment of the charging device of the present disclosure, the charging terminal 21 is connected to the mating terminal 11 of the mating terminal to conduct current, and when the male terminal connector 4 and the female terminal connector 5 are to be separated, the charging terminal 21 is not separated from the mating terminal 11.

During the concrete implementation, butt joint end sets up on charging pedestal 1 and is covered by connector 2, when male end connecting piece 4 and female end connecting piece 5 between connector 2 and the charging pedestal 1 will separate promptly (can also express into, when being about to the disconnection), charging terminal 21 and to inserting terminal 11 do not separate, because connect between male end connecting piece 4 and the female end connecting piece 5 when breaking off completely at this moment, cut off the power supply in the charging pedestal 1, again with charging terminal 21 and to inserting terminal 11 separation, can avoid taking place electrochemical corrosion between charging terminal 21 and the to inserting terminal 11, spark appears when avoiding charging terminal 21 and to inserting terminal 11 separation.

During specific implementation, when the connector 2 is installed on the charging seat body 1, the male end connecting piece 4 and the female end connecting piece 5 can be partially overlapped, and the distance of the partial overlapping of the male end connecting piece 4 and the female end connecting piece 5 is smaller than the length of the mutual overlapping of the charging terminal 21 and the opposite insertion terminal 11, so that after the male end connecting piece 4 and the female end connecting piece 5 are separated, the charging terminal 21 and the opposite insertion terminal 11 are separated under the condition that no current passes through the charging seat body 1, electrochemical corrosion between the charging terminal 21 and the opposite insertion terminal 11 can be avoided, and sparks are avoided when the charging terminal 21 and the opposite insertion terminal 11 are separated.

Although certain specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A high-voltage interlocking structure for a charging seat of an electric vehicle is characterized by comprising,

a charging base (1);

at least one connector (2), wherein the connector (2) is detachably connected with the charging seat body (1);

the rear cover (3), the said rear cover (3) and said charging base (1) are connected removably;

a control device disposed within the charging stand (1) or within an electric vehicle;

the high-voltage interlocking connector is arranged between the charging seat body (1) and the connector (2), and/or the high-voltage interlocking connector is arranged between the charging seat body (1) and the rear cover (3), and the high-voltage interlocking connector is connected to a circuit where the control device is located;

2. The high-voltage interlocking structure for an electric vehicle charging stand according to claim 1, wherein each of the high-voltage interlocking connectors comprises a male terminal connector (4) and a female terminal connector (5) which are inserted into each other; the connector (2) is provided with the male end connecting piece (4), and/or the rear cover (3) is provided with the male end connecting piece (4); the charging seat body (1) is provided with the female end connecting pieces (5) and is connected with the male end connecting pieces (4) in a one-to-one correspondence mode.

3. The high-voltage interlocking structure for the charging seat of the electric vehicle as claimed in claim 2, further comprising a mounting part (6), wherein the mounting part (6) is arranged on the connector (2) and/or the rear cover (3), and the mounting part (6) is integrally injection-molded with the male end connector (4) or detachably connected.

4. The high-voltage interlocking structure for an electric vehicle charging stand according to claim 3, wherein the male terminal connector (4) comprises a conductive material, the male terminal connector (4) has a U-shape or a V-shape, and both ends of the U-shape or the V-shape protrude from the mounting surface (61) of the mounting portion (6).

5. The high-voltage interlocking structure for electric vehicle charging seat according to claim 4, characterized in that the front end of the male end connector (4) of the U-shape or V-shape is chamfered or rounded.

6. The high-voltage interlocking structure for an electric vehicle charging seat according to claim 3, wherein the male connector (4) comprises a conductive material, the male connector (4) is U-shaped or V-shaped, the mounting portion (6) further comprises a cavity with an opening at one end, and two ends of the U-shaped or V-shaped protrude out of the bottom surface of the cavity.

7. The high voltage interlock structure for an electric vehicle charging stand according to claim 2, wherein each of the female terminal connectors (5) comprises an interlock connection holder (51) and two connection terminals (52), the interlock connection holder (51) has two through holes (513) formed therein, the two connection terminals (52) are respectively installed in the corresponding through holes (513), one end of the connection terminal (52) is electrically connected to the control device, and the other end thereof is electrically connected to the corresponding male terminal connector (4).

8. The high voltage interlock structure for an electric vehicle charging stand according to claim 7, further comprising a snap tab provided on one of an outer circumference of the connection terminal (52) and a corresponding inner wall of the through-hole (513), and a snap groove provided on the other of the outer circumference of the connection terminal (52) and the corresponding inner wall of the through-hole (513).

9. The high voltage interlock structure for electric vehicle charging stand according to claim 7, wherein each of the interlock connection holders (51) is integrally injection-molded or detachably connected with the charging stand body (1).

10. The high voltage interlock structure for an electric vehicle charging stand according to claim 7, wherein the top of the connection terminal (52) is lower than the top of the through hole (513), the male terminal connector (4) has a U-shape or a V-shape, and both ends of the U-shape or the V-shape are respectively inserted into the corresponding through holes (513) to be electrically connected with the connection terminal (52) therein.

11. The high voltage interlock structure for electric vehicle charging stand according to claim 7, wherein the contact resistance between the male terminal connector (4) and the connection terminal (52) is less than 9m Ω.

12. The high voltage interlock structure for an electric vehicle charging stand according to claim 7, wherein the interlock connection holder (51) comprises a base (511) and a protrusion (512), and the two through holes (513) pass through the base (511) and the protrusion (512), respectively; the male end connecting piece (4) is fixedly connected with the mounting part (6) of the connector (2) or the rear cover (3), the male end connecting piece (4) is U-shaped or V-shaped, the mounting part (6) further comprises a cavity with one open end, and two ends of the U-shaped or V-shaped protrude out of the bottom surface of the cavity; the protrusion part (512) is in plug-in fit with the cavity, and two ends of the U shape or the V shape are respectively inserted into the through hole (513) to be electrically connected with the connecting terminal (52).

13. The high-voltage interlocking structure for electric vehicle charging cradle according to claim 10, wherein when said connector (2) or said rear cover (3) and said charging cradle (1) are in the mounted position, both ends of said U-shape or said V-shape are inserted and overlapped with said connection terminal (52).

14. The high-voltage interlocking structure for electric vehicle charging cradle according to claim 1, characterized in that sealing means (7) are provided between said connector (2) and said back cover (3) and said charging cradle body (1).

15. The high-voltage interlocking structure for the charging stand of the electric vehicle as claimed in claim 1, wherein the connector (2) and the rear cover (3) are connected with the charging stand body (1) by one or more of adhesive connection, magnetic attraction connection, bayonet connection, plug connection and locking connection.

16. A charging device comprising a charging terminal (21) and a cable and the high-voltage interlock structure for electric vehicle charging stand according to any one of claims 2 to 10, wherein the charging terminal (21) is connected to the cable and provided in the charging stand body (1) for conducting a high-voltage current; when the connector (2) and/or the rear cover (3) are completely separated from the charging seat body (1), the male end connector (4) and the female end connector (5) are disconnected, and simultaneously a signal is given to the control device, and the control device disconnects the high-voltage current in the cable.

17. A charging device according to claim 16, wherein the charging terminal (21) is connected to the mating terminal (11) of the mating terminal to conduct current, and the charging terminal (21) is not separated from the mating terminal (11) when the male terminal connector (4) and the female terminal connector (5) are about to be disconnected.