CN216761466U

CN216761466U - Charging device for electric vehicle and electric vehicle

Info

Publication number: CN216761466U
Application number: CN202122099220.2U
Authority: CN
Inventors: 不公告发明人
Original assignee: Nine Intelligent Changzhou Tech Co Ltd
Current assignee: Nine Intelligent Changzhou Tech Co Ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-06-17
Anticipated expiration: 2031-09-01

Abstract

The utility model discloses a charging device of an electric vehicle and the electric vehicle, the charging device of the electric vehicle comprises: a charging seat; a harness connector; the wire harness is connected between the charging seat and the wire harness connector and comprises a first electrode wire harness and a second electrode wire harness; the outage protector, the disconnection when charging seat and external power source disconnection, the outage protector includes: the first electrode wire harness and the second electrode wire harness are connected with the circuit board in the shell. After the charging seat is disconnected with the external power supply, the electric control element can detect that the charging port is not connected with the external power supply, the circuit board controls the charging seat to be disconnected with the inside of the electric vehicle, the electric transmission of the inside of the electric vehicle to the charging port is prevented, the charging port is still electrified, and therefore the electric shock accident caused by the fact that a person touches the charging port with hands or other metal conductive products is avoided.

Description

Charging device for electric vehicle and electric vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to a charging device of an electric vehicle and the electric vehicle.

Background

At present, two-wheeled or three-wheeled electric vehicles and electric motorcycles are more and more widely used, but electric shock events caused by touching a charging port of the electric vehicle by a user or a child can occur, and according to the latest requirements, after an external power supply is pulled out, the voltage of the charging port is lower than 60V.

In the prior art, a charging port of an electric vehicle does not have a protection function, when an external power supply is pulled out after charging is completed, the charging port is actually electrified, and the voltage of the charging port is equal to the voltage of a battery, so that the charging port of the electric vehicle partially carrying 60V or even 72V batteries is electrified with a voltage larger than 60V required, which is very dangerous, and when a person uses hands or other metal conductive products to touch the charging port, electric shock accidents can easily occur.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a charging device of an electric vehicle, which can prevent the electricity in the electric vehicle from being transmitted to a charging port and avoid electric shock accidents caused by the fact that a person touches the charging port by hands or other metal conductive products.

The utility model further provides an electric vehicle.

The charging device for an electric vehicle according to the present invention includes: a charging seat; a harness connector; the wire harness is connected between the charging seat and the wire harness connector and comprises a first electrode wire harness and a second electrode wire harness; outage protector, the charging seat cuts off when disconnecting with external power source, outage protector includes: the first electrode wire harness and the second electrode wire harness are connected with the circuit board in the shell.

According to the charging device of the electric vehicle, after the charging seat is disconnected with the external power supply, the electric control element can detect that the external power supply is not connected at the charging port, the circuit board controls the charging seat to be disconnected with the inside of the electric vehicle, so that electricity in the electric vehicle is prevented from being transmitted to the charging port, the charging port is still electrified, and the electric shock accident caused by the fact that a person touches the charging port with hands or other metal conductive products is avoided.

In some examples of the present invention, the wire harness further includes: the charging seat is connected with the first electrode wire harness and the charging access wire harness, the wire harness connector is connected with the second electrode wire harness, and the first electrode wire harness, the second electrode wire harness and the charging access wire harness are all electrically connected with the circuit board so that the electric control element breaks a circuit between the first electrode wire harness and the second electrode wire harness when the charging access wire harness is not electrified.

In some examples of the utility model, the electric control element is a MOS transistor.

In some examples of the present invention, the circuit board is provided with a first connector, and the wire harness is provided with a second connector that is plugged onto the first connector.

In some examples of the utility model, the first connector is configured as a socket with a plug-in board, and the second connector is configured as a plug-in terminal with a socket into which the plug-in board is plugged.

In some examples of the utility model, the first plug connector is multiple, the electric control element is arranged in the middle of the circuit board, and the multiple first plug connectors are distributed at the end corners of the circuit board.

In some examples of the utility model, the housing comprises: the base and the top cap, the relative both sides in top of base are provided with first joint portion, the relative both sides of top cap are provided with second joint portion, first joint portion with the cooperation of second joint portion joint.

In some examples of the utility model, the housing is filled with a sealant, and the sealant covers the circuit board.

An electric vehicle according to the present invention includes: a barrel seat; the battery is arranged in the seat barrel; the seat barrel surrounding plate is arranged on the outer side of the seat barrel; the charging seat and the power-off protector are arranged on the seat barrel surrounding plate, and the wire harness is connected to the battery.

In some examples of the utility model, the seat barrel surrounding plate is provided with a mounting groove, and the power-off protector is arranged in the mounting groove.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a charging device according to an embodiment of the present invention;

fig. 2 is an exploded view of a charging device according to an embodiment of the present invention;

fig. 3 is a partial structural schematic diagram of a charging device according to an embodiment of the utility model;

FIG. 4 is a schematic structural view of the power outage protector;

fig. 5 is a partial structural view of an electric vehicle according to another embodiment of the present invention.

Reference numerals:

a charging device 1;

a charging stand 10; a plug 11; a harness connector 20; a wire harness 30; the first electrode wire harness 31; the second electrode wire harness 32; a charging access harness 33; a second plug-in unit 34;

a power-off protector 40; a housing 41; a circuit board 42; an electric control element 43; a first plug-in unit 44; an insert plate 45; a base 46; a top cover 47; a first clip portion 48; a second engaging portion 49; a clip 50;

an electric vehicle 2; a seat barrel enclosure 60; and a mounting groove 61.

Detailed Description

Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.

A charging device 1 according to an embodiment of the present invention is described below with reference to fig. 1 to 5, the charging device 1 being provided on an electric vehicle 2.

As shown in fig. 1 to 3, a charging device 1 of an electric vehicle 2 according to an embodiment of the present invention includes: the charging stand 10, the wire harness connector 20, the wire harness 30 and the power-off protector 40. The charging seat 10 includes charging mouth and plug 11, and the mouth that charges is used for external power source's connection, and the plug 11 cooperation is in charging mouth department, and the plug 11 can play the effect of being connected with external power source, then send into electric motor car 2 inside with the electric energy to can realize charging for electric motor car 2. The harness connector 20 may be connected to a main line of the electric vehicle 2, and the main line may be connected to a controller inside the electric vehicle 2, so that the charging device 1 may be controlled. The wire harness 30 may play a role of intermediate electrical connection, so that electric energy may be transmitted to the inside of the electric vehicle 2, thereby achieving a charging effect of the electric vehicle 2. The power-off protector 40 can disconnect the charging port from the interior of the electric vehicle 2, so as to prevent the charging port from being electrified when the charging stand 10 is disconnected.

As shown in fig. 1 to 3, the wire harness 30 is connected between the charging base 10 and the wire harness connector 20, that is, a part of the wire harness 30 is directly connected between the charging base 10 and the wire harness connector 20, the wire harness 30 can be connected with the controller through the wire harness connector 20, so that the controller can exert a certain control effect on the charging base 10,

as shown in fig. 1 and 3, the power cut-off protector 40 is provided between the wire harnesses 30, that is, another part of the wire harness 30 passes through the power cut-off protector 40, and the part of the wire harness 30 mainly charges the inside of the electric vehicle 2 through the power cut-off protector 40. And outage protector 40 is at the open circuit of charging seat 10 when external power source disconnection, so, after charging seat 10 and external power source disconnection, outage protector 40 also can break off the mouth that charges and the inside being connected of electric motor car 2, prevents that the inside electricity of electric motor car 2 from can transmitting the mouth that charges, makes the mouth department that charges still electrified to avoid someone to touch the mouth that charges and take place the electric shock accident with the hand or other metal conducting products.

Specifically, as shown in fig. 1 to 4, the power outage protector 40 includes: the wiring harness comprises a shell 41, a circuit board 42 and an electric control element 43, wherein the electric control element 43 is arranged on the circuit board 42, the circuit board 42 is arranged in the shell 41, and the circuit board 42 is connected between the wiring harnesses 30. Circuit board 42 is equivalent to a branch controller of electric motor car 2, can play the control action to the current transfer between charging seat 10 and the electric motor car 2 inside, when the mouth that charges is connected with external power source, circuit board 42 controls to switch on between charging seat 10 and the electric motor car 2 inside, electric motor car 2 normally charges, when mouth and external power source disconnection charge, circuit board 42 controls to break off between charging seat 10 and the electric motor car 2 inside, the mouth that makes to charge is uncharged, avoid personnel's mistake to touch and take place the electric shock accident.

In addition, the circuit board 42 is disposed in the casing 41, the casing 41 can protect the circuit board 42, and prevent the circuit board 42 from being damaged due to the touch with a foreign object, and the circuit board 42 can isolate the circuit board 42 from the external environment, so as to prevent the circuit board 42 from being affected by the external environment, and thus the circuit board 42 can work normally. The electric control element 43 is arranged on the circuit board 42, and the electric control element 43 can detect whether the charging port is connected with an external power supply according to the attribute of the electric control element 43, so that the charging seat 10 and the electric vehicle 2 are controlled to be connected or disconnected, and the protection effect of the power-off protector 40 is realized. The circuit board 42 is connected between the wire harnesses 30, and the wire harnesses 30 can perform a signal transmission function, and of course, the circuit board 42 can also control the communication between the wire harnesses 30 according to the detection result of the electronic control element 43.

According to an alternative embodiment of the present invention, as shown in fig. 1 to 3, a wire harness 30 includes: the charging stand 10 is connected with the first electrode wire harness 31 and the charging access wire harness 33, the wire harness connector 20 is connected with the second electrode wire harness 32, and the first electrode wire harness 31, the second electrode wire harness 32 and the charging access wire harness 33 are all electrically connected with the circuit board 42, so that the electric control component 43 breaks a circuit between the first electrode wire harness 31 and the second electrode wire harness 32 when the charging access wire harness 33 is not electrified.

That is to say, after the charging stand 10 is connected to the external power source, the current can be led into the circuit board 42 through the first electrode harness 31 and the charging access harness 33, and the electric control element 43 detects that the charging port is connected to the external power source through the charging access harness 33, so that the electric control element 43 controls the circuit conduction between the first electrode harness 31 and the second electrode harness 32, and the current can be led into the electric vehicle 2 through the second electrode harness 32, thereby realizing the charging of the electric vehicle 2. After the charging stand 10 is disconnected with the external power supply, the electric control element 43 detects that the charging port is not connected with the external power supply through the charging access wiring harness 33, so that the electric control element 43 disconnects a circuit between the first electrode wiring harness 31 and the second electrode wiring harness 32, the current inside the electric vehicle 2 cannot be transmitted to the charging port, and the electric shock accident caused by mistaken touch of a person is avoided. The first electrode wire harness 31 and the second electrode wire harness 32 may both be the negative electrode wire harness 30, and may also both be the positive electrode wire harness 30.

Further, the electric control element 43 is a MOS transistor (field effect transistor). Be connected with the access pencil 33 that charges between charging seat 10 and circuit board 42, the MOS pipe can detect whether there is the high level input, after charging seat 10 connects external power source, the high level gets into the inside MOS pipe grid of outage protector 40 through charging the mouth, at this moment the MOS pipe can be in the on-state, thereby make the circuit between first electrode pencil 31 and the second electrode pencil 32 switch on, realize electric motor car 2's normal charging, after charging seat 10 and external power source disconnection, the unable high level that obtains of the inside MOS pipe grid of outage protector 40, thereby break off the circuit between first electrode pencil 31 and the second electrode pencil 32, make the inside electric current of electric motor car 2 unable transmission to charging the mouth, avoid personnel's mistake to touch and take place the electric shock accident. In addition, the MOS tube controls the on-off of the loop, the power consumption is low, the MOS tube can be adapted to a high-current fast charging external power supply, and the 10A-15A fast charging external power supply can work normally.

Alternatively, as shown in fig. 2 and 4, the circuit board 42 is provided with a first connector 44, the wire harness 30 is provided with a second connector 34, and the second connector 34 is plugged onto the first connector 44. The first connector piece 44 is arranged on the circuit board 42, the second connector piece 34 is arranged on the wiring harness 30, the second connector piece 34 is connected to the first connector piece 44 in an inserting mode, the wiring harness 30 can be connected to the circuit board 42, the inserting and matching mode is achieved, operation is simple and convenient, and connection between the wiring harness 30 and the circuit board 42 can be more stable and firm.

As shown in fig. 2 and 4, the first connector 44 is designed as a plug socket with a plug-in board 45, the second connector 34 is designed as a plug-in terminal with a socket, and the plug-in board 45 is plugged into the socket. The first connector 44 is configured as a socket and the second connector 34 is configured as a jack terminal such that the jack terminal can be plugged into the socket to electrically connect the wiring harness 30 to the circuit board 42. In addition, the first plug connector 44 is provided with a plug board 45, the second plug connector 34 is provided with a slot, and the plug board 45 is plugged in the slot, so that the wire harness 30 and the circuit board 42 can be electrically connected, and the plug board 45 and the slot are plugged, so that the operation is simpler and more convenient.

Further, as shown in fig. 2 and 4, the first plug-in unit 44 is plural, the electric control element 43 is disposed in the middle of the circuit board 42, and the plural first plug-in units 44 are distributed at the end corners of the circuit board 42. A plurality of first connectors 44 are provided, so that the plurality of first connectors 44 can be connected with the first electrode wire harness 31, the second electrode wire harness 32 and the charging access wire harness 33, or connected with other wire harnesses 30, thereby ensuring the normal use of the power-off protector 40. The electric control element 43 is arranged in the middle of the circuit board 42, and the first connectors 44 are distributed at the end corners of the circuit board 42, so that the arrangement is more reasonable, the positions of parts on the circuit board 42 are conveniently distributed, and the connection of the first connectors 44 and the wiring harness 30 is more convenient.

Of course, as shown in fig. 2, the housing 41 includes: base 46 and top cap 47, the relative both sides in top of base 46 are provided with first joint portion 48, and the relative both sides of top cap 47 are provided with second joint portion 49, first joint portion 48 and the cooperation of second joint portion 49 joint. Be provided with first joint portion 48 through the relative both sides in top at base 46, and the relative both sides of top cap 47 are provided with second joint portion 49, first joint portion 48 and the cooperation of second joint portion 49 joint, can make base 46 and top cap 47 form a sealed shell 41, sealed shell 41 can play the guard action to circuit board 42, avoid circuit board 42 and foreign object touching and receive the damage, and circuit board 42 also can be isolated with circuit board 42 and external environment, avoid circuit board 42 to receive external environment's influence, thereby make circuit board 42 normally work. As shown in the drawings, the first engaging portion 48 may be a fastening block, and the second engaging portion may be a fastening buckle engaged with the fastening block, so as to facilitate the sealing between the base 46 and the top cover 47, and to open the housing 41, thereby facilitating the inspection and maintenance of the circuit board 42 when the circuit board 42 fails.

In addition, as shown in fig. 2 to 4, the housing 41 is filled with a sealant, and the sealant covers the circuit board 42. Firstly, the circuit board 42 is pasted, all functions of the circuit board 42 are tested to be normal, the clamping pins 50 are arranged in the base 46, the circuit board 42 is clamped at the corresponding clamping pins 50 in the base 46, so that the circuit board 42 can be stably arranged in the base 46, the circuit board 42 is prevented from shaking, then sealant is filled in the base 46 clamped with the circuit board 42, the sealant covers all pins of components arranged on the circuit board 42, the mounting stability of the circuit board 42 is further improved, and the circuit board 42 is prevented from shaking and being easily damaged.

As shown in fig. 5, the electric vehicle 2 according to the embodiment of the present invention includes: the charging device comprises a seat barrel, a battery, a seat barrel enclosing plate 60 and the charging device 1 of the electric vehicle 2, wherein the battery is arranged in the seat barrel, the seat barrel enclosing plate 60 is arranged on the outer side of the seat barrel, a charging seat 10 and a power-off protector 40 are arranged on the seat barrel enclosing plate 60, and a wiring harness 30 is connected with the battery. Set up like this and make things convenient for the connection between battery and the charging device 1 more, when electric motor car 2 need charge, can peg graft external power source in the mouth that charges that is located seat bucket bounding wall 60, the electric current leads to the battery through charging device 1, realize electric motor car 2's normal charging, when electric motor car 2 need not charge, can pull out external power source from the mouth that charges of seat bucket bounding wall 60, at this moment, the electricity between power-off protector 40 disconnection charging seat 10 and the battery is connected, the unable mouth that charges that transmits of electric current in the battery, make the mouth that charges uncharged, avoid personnel's mistake to touch and take place the electric shock accident. The electric vehicle 2 may be a two-wheeled electric vehicle or a three-wheeled electric vehicle, and of course, the charging device 1 according to the embodiment of the present invention may also be installed in other electric devices that operate using a rechargeable battery and require electric shock protection at a charging port.

As shown in fig. 5, the seat barrel surrounding plate 60 is provided with a mounting groove 61, and the power-off protector 40 is disposed in the mounting groove 61. Be provided with mounting groove 61 on seat bucket bounding wall 60, outage protector 40 can set up in mounting groove 61, and the installation and the fixing of outage protector 40 of being convenient for like this, mounting groove 61 can play certain limiting displacement to outage protector 40 in addition, prevents that outage protector 40 from shifting or coming off, makes setting up of outage protector 40 more stable.

Further, as shown in fig. 5, the two ends of the outer casing 41 are provided with engaging lugs, and the periphery of the mounting groove 61 on the seat barrel surrounding plate can be provided with mounting posts, and the engaging lugs are fixed on the mounting posts by screw fasteners.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. In the description of the present invention, "a plurality" means two or more. In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween. In the description of the utility model, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A charging device for an electric vehicle, comprising:

a charging seat;

a harness connector;

the wire harness is connected between the charging seat and the wire harness connector and comprises a first electrode wire harness and a second electrode wire harness;

outage protector, the charging seat cuts off when disconnecting with external power source, outage protector includes: the first electrode wire harness and the second electrode wire harness are connected with the circuit board in the shell.

2. The charging device for an electric vehicle according to claim 1, wherein the wire harness further comprises: the charging seat is connected with the first electrode wire harness and the charging access wire harness, the wire harness connector is connected with the second electrode wire harness, and the first electrode wire harness, the second electrode wire harness and the charging access wire harness are all electrically connected with the circuit board so that the electric control element breaks a circuit between the first electrode wire harness and the second electrode wire harness when the charging access wire harness is not electrified.

3. The charging device for the electric vehicle according to claim 2, wherein the electric control element is a MOS transistor.

4. The charging device for an electric vehicle according to claim 1, wherein the circuit board is provided with a first connector, and the wire harness is provided with a second connector which is plugged onto the first connector.

5. The charging device for the electric vehicle according to claim 4, wherein the first connector is configured as a socket having a plug board, and the second connector is configured as a socket terminal having a socket into which the plug board is plugged.

6. The charging device for the electric vehicle according to claim 4, wherein the number of the first connectors is plural, the electric control element is disposed in a middle portion of the circuit board, and the plural first connectors are distributed at end corners of the circuit board.

7. The charging device for an electric vehicle according to claim 1, wherein the housing comprises: the base and the top cap, the relative both sides in top of base are provided with first joint portion, the relative both sides of top cap are provided with second joint portion, first joint portion with the cooperation of second joint portion joint.

8. The charging device for the electric vehicle according to claim 1, wherein the housing is filled with a sealant, and the sealant covers the circuit board.

9. An electric vehicle, comprising:

a seat barrel;

the battery is arranged in the seat barrel;

the seat barrel surrounding plate is arranged on the outer side of the seat barrel;

the charging device for electric vehicles as claimed in any one of claims 1 to 8, wherein the charging stand and the power-off protector are provided on the seat cover, and the wiring harness is connected to the battery.

10. The electric vehicle of claim 9, wherein the seat tub enclosure is provided with an installation slot, and the power-off protector is disposed in the installation slot.