CN217691761U

CN217691761U - Electric connecting device and electric automobile

Info

Publication number: CN217691761U
Application number: CN202221059992.1U
Authority: CN
Inventors: 张建平; 黄春华
Original assignee: Aulton New Energy Automotive Technology Co Ltd
Current assignee: Aulton New Energy Automotive Technology Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-10-28
Anticipated expiration: 2032-04-29

Abstract

The utility model discloses an electric connection device and electric automobile, electric connection device including locate the car end connector on the electric automobile and locate the battery end connector on the battery package, the car end connector includes first ground connection subassembly, the battery end connector includes second ground connection subassembly, first ground connection subassembly with second ground connection subassembly is connected in order to realize electric automobile with the ground return circuit of battery package. The utility model discloses an electric connecting device is through setting up first ground connection subassembly and second ground connection subassembly on car end connector and battery end connector respectively for the battery package provides ground loop when car end connector carries out the electricity with the battery package and is connected, when the battery package takes place unexpected circumstances such as electric leakage, can prevent that the human body from suffering the electric shock, prevent that equipment and circuit from suffering the damage, thereby guarantee operating personnel's personal safety, guarantee electric automobile's electric power system normal operating.

Description

Electric connecting device and electric automobile

Technical Field

The utility model relates to an electric connection device and electric automobile.

Background

The existing battery pack of the electric automobile is generally installed in a fixed mode or a quick-change mode. The stationary battery pack is generally fixed to an electric vehicle, and the electric vehicle is directly used as a charging target during charging. The quick-change battery pack is generally fixed on the electric automobile in a movable mounting mode, and the electric automobile can be replaced with the battery pack in a battery replacement station. Generally speaking, when the battery pack on the electric vehicle is insufficient in power, the battery pack with insufficient power can be taken down and replaced by a new battery pack with full power through the battery replacing equipment in the battery replacing station. The taken-down insufficient battery pack can be transferred to a charging bin of the battery replacement station to be charged and stored.

The battery pack is in butt joint with the electric automobile through the automobile end connector arranged on the electric automobile and the battery end connector arranged on the battery pack to realize electric connection. The existing electric connection device for the battery pack and the electric automobile has no grounding structure, so that when the battery pack has electric leakage and other accidents, the human body of an operator can get an electric shock, or the electric automobile or equipment and circuits in the battery pack are damaged, and certain potential safety hazards are caused.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current battery package and electric automobile's electric connector and do not have ground structure, can lead to the human electric shock of operating personnel or damage the defect of equipment and circuit in electric automobile or the battery package, provide an electric connector and electric automobile.

The utility model discloses a solve above-mentioned technical problem through following technical scheme:

the utility model provides an electric connecting device, including locating the car end connector on the electric automobile and locating the battery end connector on the battery package, the car end connector includes first ground connection subassembly, the battery end connector includes second ground connection subassembly, first ground connection subassembly with second ground connection subassembly is connected in order to realize the electric automobile with the ground return circuit of battery package.

In this scheme, through set up first ground connection subassembly and second ground connection subassembly on vehicle-end connector and battery end connector respectively for the battery package provides ground return circuit when vehicle-end connector carries out the electricity with the battery package and connects, when the battery package takes place unexpected circumstances such as electric leakage, can prevent that the human body from electrocuting, prevent that equipment and circuit from suffering damage, thereby guarantee operating personnel's personal safety, guarantee electric automobile's electric power system normal operating.

Preferably, the vehicle end connector comprises a first mounting seat, the battery end connector comprises a second mounting seat, and the first mounting seat and the second mounting seat are arranged oppositely; the first grounding assembly penetrates through the first mounting seat, and the second grounding assembly penetrates through the second mounting seat.

In this scheme, set up first ground connection subassembly and second ground connection subassembly respectively on the mount pad that vehicle end connector and battery end connector correspond, be convenient for install ground connection subassembly.

Preferably, the first grounding assembly comprises a first grounding terminal having an electrical contact end and a terminal end; the first mounting seat comprises a first mounting portion, a first mounting hole is formed in the first mounting portion, and the first grounding pole is arranged in the first mounting hole in a penetrating mode in a telescopic mode.

In this scheme, the above-mentioned structure setting is adopted to first ground connection utmost point post, and the first ground connection utmost point post takes place the rigidity collision with the ground connection part on the battery package when avoiding the butt joint of vehicle end connector and battery package.

Preferably, the first grounding pole has a mounting groove, the mounting groove is formed in the end face of the electrical contact end, a conductive elastic member is embedded in the mounting groove, and the conductive elastic member protrudes out of the end face of the electrical contact end.

In the scheme, the conductive piece of the first grounding pole for grounding and electric connection adopts an elastic structure, and can be compressed when being pressed, so that the conductive piece in grounding and butt joint can be prevented from generating rigid collision when two grounding components are in butt joint; meanwhile, the conductive elastic part has certain elastic allowance, so that the reliability and stability of the grounding electric connection between the electric automobile and the battery pack are improved, and the situation of vibration of the automobile body is better adapted; the conductive elastic part protrudes out of the end face of the electric contact end, so that the conductive elastic part is conveniently electrically connected with a second grounding component on the battery pack, and a reliable grounding loop is realized.

Preferably, the conductive elastic member is a conductive spring.

In this scheme, electrically conductive elastic component adopts electrically conductive spring, and elastic deformation ability and electricity transmission ability are better, and simple structure, and the processing of being convenient for is with low costs.

Preferably, the vehicle end connector further comprises a first low-voltage component and a first high-voltage component, and the first low-voltage component and the first high-voltage component are arranged on the first mounting seat in a penetrating mode.

In the scheme, the first low-voltage assembly is used for being electrically connected with the battery pack at low voltage so as to transmit control signals between the electric automobile and the battery pack, and the first high-voltage assembly is used for being electrically connected with the battery pack at high voltage so as to transmit electric energy between the electric automobile and the battery pack; all set up first low pressure subassembly and first high pressure subassembly on first mount pad, the first mount pad of rational utilization can be so that the structure of car end connector is compacter, the spatial layout of each part of the car end connector of also being convenient for simultaneously.

Preferably, the first low-voltage assembly comprises a first low-voltage pole, the first installation part is further provided with a second installation hole, and the first low-voltage pole is arranged in the second installation hole in a telescopic penetrating mode.

In this scheme, first low pressure utmost point post adopts above-mentioned structure setting, and the first low pressure utmost point post takes place the rigidity collision with the docking component that the battery wrapped when avoiding the butt joint of car end connector and battery package to the scalable setting of first low pressure utmost point post is favorable to improving the stability of electricity connection.

Preferably, the number of the first low-voltage poles is plural, the number of the first grounding poles is one, and the first grounding poles are arranged on one side of the first low-voltage poles or the first grounding poles are arranged between the first low-voltage poles.

In this scheme, adopt above-mentioned structure for the structure that first low pressure utmost point post and first ground connection utmost point post were arranged is compacter, is favorable to the spatial layout of each part of vehicle end connector.

Preferably, the number of the first grounding poles is two, and the two first grounding poles are respectively arranged at two sides of the first low-voltage pole.

In this scheme, adopt above-mentioned structure, first ground connection utmost point post sets up two, can avoid one of them first ground connection utmost point post inefficacy to lead to the battery package can't take place with the condition that the vehicle end connector formed ground circuit, guarantees the ground state of battery package, improves the reliability that ground connection electricity is connected between electric automobile and the battery package.

Preferably, the extension length of the first ground pole is greater than the extension length of the first low-voltage pole from the plane where the outer surface of the first mounting seat is located.

In this scheme, adopt above-mentioned structure setting for when vehicle-end connector is connected with the battery package, first ground connection utmost point post compares earlier with the battery package contact in first low voltage utmost point post, and when vehicle-end connector and battery package disconnection, first ground connection utmost point post compares with first low voltage utmost point post back and battery package separation, has guaranteed the ground safety nature of whole electricity connection in-process.

Preferably, the first high voltage assembly comprises a first high voltage pole; the first mounting seat further comprises a second mounting portion, a third mounting hole is formed in the second mounting portion, and the first high-voltage pole is arranged in the third mounting hole in a penetrating mode in a telescopic mode.

In this scheme, first high-voltage utmost point post adopts above-mentioned structure setting, and first high-voltage utmost point post takes place the rigidity collision with the docking component on the battery package when avoiding the butt joint of vehicle end connector and battery package to the scalable setting of first high-voltage utmost point post is favorable to improving the stability of electricity connection.

Preferably, the quantity of first high voltage utmost point post is two, two high voltage utmost point post is located respectively the both sides of first installation department.

In this scheme, adopt above-mentioned structure, the spatial layout of each part of the vehicle end connector of being convenient for.

Preferably, the extension length of the first ground pole is not less than the extension length of the first high-voltage pole from the plane where the outer surface of the first mounting seat is located.

In this scheme, adopt above-mentioned structure setting for when vehicle-end connector is connected with the battery package, first ground connection utmost point post is no later than first high voltage utmost point post and battery package contact, and when vehicle-end connector and battery package disconnection, first ground connection utmost point post is not earlier than first high voltage utmost point post and battery package separation, has guaranteed whole electric connection process's ground connection security.

Preferably, the vehicle end connector comprises a first positioning component, the first positioning component is arranged on the first mounting seat, the battery end connector comprises a second positioning component, the second positioning component is arranged on the second mounting seat, and the first positioning component and the second positioning component are matched with each other to realize the connection and the positioning of the vehicle end connector and the battery end connector.

In this scheme, through set up first locating component and the second locating component that cooperatees respectively on car end connector and battery end connector, the butt joint location when not only being convenient for car end connector is connected with the battery package electricity still guarantees that the battery package contacts well in the locking in-process, takes place to jolt when avoiding the vehicle motion and leads to the stability that the bad influence electricity is connected of contact.

Preferably, the first positioning assembly comprises a positioning post, and the second positioning assembly comprises a sleeve portion; the positioning column comprises a limiting section and a positioning section in sequence from the surface of the first mounting seat, the diameter of the limiting section is larger than that of the positioning section, the positioning section is used for being matched with the sleeve part, and the limiting section is used for limiting relative displacement of the vehicle-end connector and the battery-end connector along the axial direction of the positioning column.

In this scheme, the location section of fixing a position realizes the accurate location of car end connector and battery end connector, and spacing section can carry out the axial spacing, and excessive displacement leads to first ground connection utmost point post to damage when preventing car end connector and battery end connector cooperation to need not additionally to set up and prevent the excessive mechanism, make the better compactness of connector structure.

Preferably, the number of the positioning columns is two, and the two positioning columns are respectively arranged at two ends of the first mounting seat.

In this scheme, adopt above-mentioned structure setting, further guarantee the electric contact stability of battery package after locking in-process location accuracy and location.

Preferably, the extension length of the first grounding pole is smaller than that of the positioning column from the plane where the outer surface of the first mounting seat is located.

In this scheme, adopt above-mentioned structure setting for when vehicle end connector is connected with the battery package electricity, the reference column of vehicle end connector cooperatees in order to fix a position the direction with the sleeve portion of battery end connector earlier, and later the first high-voltage terminal post of vehicle end connector just contacts with the last corresponding ground connection part of battery end connector with first ground connection utmost point post, guarantees that vehicle end connector docks smoothly with the battery package, avoids leading to the fact the damage because of the location is inaccurate to first ground connection utmost point post.

Preferably, the maximum compression stroke of the first grounding pole is greater than the height difference between the end surface of the electrical contact end of the first grounding pole and the end surface of the positioning column limiting section.

In this scheme, adopt above-mentioned structure setting, support the contact through spacing section of reference column and sleeve part each other for first ground connection utmost point post does not reach or be close the biggest compression stroke when being supported and pressing, thereby has the guard action to first ground connection utmost point post, avoids the electric contact end of first ground connection utmost point post to receive the extrusion effort and take place to damage.

Preferably, the outer wall surface of the first grounding pole is sleeved with an elastic piece, the elastic piece is located in the first mounting hole, one end of the elastic piece abuts against the first grounding pole, and the other end of the elastic piece abuts against the first mounting portion.

In this scheme, be connected through first ground connection utmost point post and elastic component for can produce when being pressed first ground connection utmost point post and float, thereby avoid first ground connection utmost point post to take place the rigidity collision, can exert force to first ground connection utmost point post after the elastic component is compressed deformation simultaneously and make first ground connection utmost point post and battery package on the second ground connection subassembly be connected more stably.

Preferably, the first grounding assembly further comprises a flexible electrical connector and a grounding plug; one end of the flexible electric connecting piece is electrically connected with the wiring end of the first grounding pole, and the other end of the flexible electric connecting piece is electrically connected with the grounding plug; the flexible electric connector is adapted to the relative displacement change of the first grounding pole and the grounding plug at each angle in the axial direction and the radial direction through the flexible cavity.

In this scheme, adopt above-mentioned structure setting, the relative displacement of each angle such as the adaptable axial of flexible electric connection piece, radial changes for first ground connection subassembly with the battery package on the second ground connection subassembly butt joint take place to float flexible surplus occasionally, avoid leading to the electrical connection performance variation because of relative displacement's change, or make flexible electric connection piece damage because of dragging the atress.

Preferably, the ground plug is connected with the metal shell of the vehicle-end connector.

In this scheme, adopt above-mentioned structure setting, direct metal casing and the automobile body ground connection through the vehicle-side connector, ground connection is simple, avoids setting up unnecessary ground connection part.

Preferably, the flexible electric connector is a braided belt wire, the braided belt wire has a hollow structure, the middle part of the braided belt wire protrudes outwards, and the flexible cavity is formed inside the middle part of the braided belt wire.

In this scheme, flexible electric connector adopts the braid over braid wire that has hollow structure, simple structure, and is with low costs.

Preferably, the first grounding assembly further comprises an insulating cover, and the insulating cover is sleeved on the periphery of the flexible electric connector.

In this scheme, set up the insulating boot and play the guard action to flexible electric connector, avoid flexible electric connector and other parts to take place to interfere or produce arc discharge and influence other electric connecting part's normal work in the vehicle end connector.

Preferably, interfaces at two ends of the insulating cover are respectively connected with the first mounting portion and the grounding plug.

In this scheme, adopt above-mentioned structure setting, avoid the insulating boot to produce pressure to flexible electric connector, influence flexible electric connector's elasticity, make the insulating boot wrap up flexible electric connector comprehensively simultaneously, improve the leakproofness of insulating boot to flexible electric connector.

Preferably, the vehicle end connector further comprises a sealing element, the sealing element is wrapped on the outer wall of the first mounting seat, the second mounting seat further comprises a sealing part, and the sealing part is located on the outer wall of the second mounting seat; the sealing piece is used for abutting against the sealing part to realize the sealing connection between the vehicle-end connector and the battery-end connector.

In this scheme, adopt above-mentioned structure setting, prevent that car end connector and battery package from docking the back, outside dust, rainwater etc. get into through both joint gap, guarantee inside electric connection assembly's sealed effect, improve the stability and the security of electricity connection.

The utility model also provides an electric automobile, electric automobile contains as above vehicle-end connector among the electric connecting device.

In this aspect, the electric vehicle includes the vehicle-end electric connector of the electric connection device.

In this scheme, this electric automobile's car end electric connector when the battery end electric connector cooperation with the battery package, realize the ground return circuit between electric automobile and the battery package through ground subassembly, when the battery package takes place unexpected circumstances such as electric leakage, can prevent that the human body from electrocuting, prevent that equipment and circuit from suffering the damage to guarantee operating personnel's personal safety, guarantee electric automobile's electric power system normal operating.

The utility model discloses an actively advance the effect and lie in:

the utility model discloses an electric connecting device is through setting up first ground connection subassembly and second ground connection subassembly on car end connector and battery end connector respectively for the battery package provides ground loop when car end connector carries out the electricity with the battery package and is connected, when the battery package takes place unexpected circumstances such as electric leakage, can prevent that the human body from electrocuteeing, prevent that equipment and circuit from suffering damage, thereby guarantee operating personnel's personal safety, guarantee electric automobile's electric power system normal operating.

Drawings

Fig. 1 is a schematic structural diagram of an electrical connection device according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of the electrical connection device in fig. 1 from another perspective.

Fig. 3 is a front view of the vehicle end connector according to the embodiment of the present invention.

Fig. 4 isbase:Sub>A sectional view taken alongbase:Sub>A-base:Sub>A in fig. 3.

Fig. 5 is a schematic view of an internal partial structure of the vehicle end connector according to the embodiment of the present invention.

Fig. 6 is a block diagram of a first grounding assembly and a first low voltage assembly of the vehicle end connector according to the embodiment of the present invention.

Fig. 7 is a schematic structural diagram of the first ground terminal in the embodiment of the present invention.

Fig. 8 is a front view of fig. 6.

Fig. 9 is a sectional view taken in the direction B-B in fig. 8.

Fig. 10 is a sectional view taken along the direction C-C in fig. 8.

Fig. 11 is a schematic structural diagram of a vehicle end connector according to another embodiment of the present invention.

Fig. 12 is a schematic view of the structure of the vehicle end connector of fig. 11 from another perspective.

Description of reference numerals:

vehicle end connector 100

First mounting seat 110

First mounting part 111

Second mounting part 112

Metal shell 120

First grounding assembly 130

First grounding pole 131

Mounting groove 1311

Conductive elastic member 1312

First elastic member 132

First low voltage assembly 140

The first low voltage pole 141

Second elastic member 142

First high voltage assembly 150

First positioning component 160

Battery end connector 200

Second mounting base 210

Second ground assembly 220

Second low voltage assembly 230

Second high voltage assembly 240

Second positioning assembly 250

Seal 300

Flexible electrical connector 400

Grounding plug 500

Insulating cover 600

Detailed Description

The present invention will be more clearly and completely described below by way of examples and with reference to the accompanying drawings, but the present invention is not limited thereto.

As shown in fig. 1 to 10, an embodiment of the present invention provides an electrical connection device, which includes a vehicle end connector 100 disposed on an electric vehicle and a battery end connector 200 disposed on a battery pack. The vehicle end connector 100 comprises a first grounding assembly 130, the battery end connector 200 comprises a second grounding assembly 220, and the first grounding assembly 130 is connected with the second grounding assembly 220 to realize a grounding loop of the electric vehicle and the battery pack. Through set up first ground connection subassembly 130 and second ground connection subassembly 220 on end connector 100 and battery end connector 200 respectively for the battery package provides ground return circuit when the end connector 100 is connected with the battery package carries out the electricity, when the battery package takes place unexpected circumstances such as electric leakage, can prevent that the human body from electrocuteeing, prevent that equipment and circuit from suffering the damage, thereby guarantee operating personnel's personal safety, guarantee electric automobile's electric power system normal operating.

As shown in fig. 1-2, in the present embodiment, the vehicle end connector 100 includes a first mounting seat 110, the battery end connector 200 includes a second mounting seat 210, and the first mounting seat 110 is disposed opposite to the second mounting seat 210; the first grounding assembly 130 is disposed on the first mounting base 110, and the second grounding assembly 220 is disposed on the second mounting base 210. The installation of the ground assembly is facilitated by disposing the first ground assembly 130 and the second ground assembly 220 on the corresponding mounting seats of the vehicle-end connector 100 and the battery-end connector 200, respectively.

As shown in fig. 4-6, the first grounding assembly 130 includes a first grounding post 131, the first grounding post 131 having an electrical contact end and a terminal. The first mounting base 110 includes a first mounting portion 111, a first mounting hole is formed in the first mounting portion 111, and the first ground pole 131 is telescopically inserted into the first mounting hole. The first grounding pole 131 is arranged in the structure, so that rigid collision between the first grounding pole 131 and a grounding component on the battery pack is avoided when the vehicle-end connector 100 is butted with the battery pack.

As shown in fig. 6, the first ground terminal 131 has a mounting groove 1311, the mounting groove 1311 is opened on the end surface of the electrical contact end (facing the battery terminal connector 200), a conductive elastic member 1312 (shown in fig. 7) is embedded in the mounting groove 1311, and the conductive elastic member 1312 protrudes out of the end surface of the electrical contact end. The conductive piece for grounding and electric connection of the first grounding pole 131 is of an elastic structure and can be compressed when being pressed, so that rigid collision of the conductive piece in grounding and butt joint can be avoided when two grounding components are in butt joint. Meanwhile, the conductive elastic element 1312 also has a certain elastic margin, so that the reliability and stability of the grounding electric connection between the electric automobile and the battery pack are improved, and the situation of vibration of the automobile body is better adapted; the end surface of the conductive elastic member 1312 protruding out of the electrical contact terminal facilitates electrical connection with the second ground assembly 220 on the battery pack to implement a reliable ground loop.

In the present embodiment, the conductive elastic member 1312 is a conductive spring. The conductive elastic element 1312 adopts a conductive spring, has good elastic deformation capability and electricity transmission capability, and is simple in structure, convenient to process and low in cost.

In other embodiments, the conductive elastic member 1312 may be an elastic structure such as a conductive elastic sheet having the same or similar function as the conductive spring.

As shown in fig. 1-3, the vehicle end connector 100 further includes a first low voltage component 140 and a first high voltage component 150, and the first low voltage component 140 and the first high voltage component 150 are both disposed through the first mounting seat 110. The first low voltage assembly 140 is used for performing low voltage electrical connection with the battery pack to transmit a control signal between the electric vehicle and the battery pack, and the first high voltage assembly 150 is used for performing high voltage electrical connection with the battery pack to transmit electric energy between the electric vehicle and the battery pack; the first low-voltage component 140 and the first high-voltage component 150 are both arranged on the first mounting seat 110, and the first mounting seat 110 is reasonably utilized, so that the structure of the vehicle end connector 100 can be more compact, and the spatial layout of components of the vehicle end connector 100 is facilitated. The battery terminal connector 200 further includes a second low voltage component 230 and a second high voltage component 240 matched with the first low voltage component 140 and the first high voltage component 150, and the second low voltage component 230 and the second high voltage component 240 are both arranged through the second mounting seat 210.

The first low voltage assembly 140 includes a first low voltage pole 141, the first mounting portion 111 further has a second mounting hole, and the first low voltage pole 141 is telescopically inserted into the second mounting hole. The first low voltage post 141 adopts the above structure, and the first low voltage post 141 and the butt joint component on the battery pack are in rigid collision when the butt joint of the vehicle end connector 100 and the battery pack is avoided, and the first low voltage post 141 is telescopic and is beneficial to improving the stability of electric connection.

In this embodiment, the number of the first low-voltage poles 141 is plural, the number of the first ground poles 131 is one, and the first ground poles 131 are disposed on one side of the plural first low-voltage poles 141. By adopting the structure, the structure of the arrangement of the first low-voltage pole 141 and the first grounding pole 131 is more compact, and the space layout of each component of the vehicle-end connector 100 is facilitated. Alternatively, in other embodiments, the first ground pole 131 may also be disposed between the plurality of first low-voltage pole 141.

In other embodiments, as shown in fig. 11 and 12, the number of the first ground poles 131 may be two, and two first ground poles 131 are respectively disposed on two sides of the first low-voltage pole 141. In this embodiment, the two first grounding poles 131 are arranged to prevent the battery pack from failing to form a grounding loop with the vehicle-end connector 100 due to the failure of one first grounding pole 131, so as to ensure the grounding state of the battery pack and improve the reliability of the grounding electrical connection between the electric vehicle and the battery pack.

In the present embodiment, the extension length of the first ground pole 131 is greater than the extension length of the first low-voltage pole 141 from the plane of the outer surface of the first mounting seat 110. Adopt above-mentioned structure setting for when vehicle-end connector 100 is connected with the battery package, first ground connection utmost point post 131 compares in first low-voltage utmost point post 141 earlier with the battery package contact, and when vehicle-end connector 100 and battery package disconnection, first ground connection utmost point post 131 compares in first low-voltage utmost point post 141 after with the battery package separation, has guaranteed the ground connection security of whole electricity connection in-process.

In the present embodiment, as shown in fig. 1 and 3, the first high voltage assembly 150 includes a first high voltage pole; the first mounting base 110 further includes a second mounting portion 112, a third mounting hole is formed in the second mounting portion 112, and the first high-voltage pole is telescopically inserted into the third mounting hole. First high-voltage terminal adopts above-mentioned structural arrangement, and the first high-voltage terminal takes place the rigidity collision with the docking component on the battery package when avoiding the butt joint of car end connector 100 and battery package to the scalable setting of first high-voltage terminal is favorable to improving the stability of electricity connection.

Wherein, the quantity of first high voltage utmost point post is two, and the both sides of first installation department 111 are located respectively to two high voltage utmost point posts, the spatial layout of each part of the vehicle end connector 100 of being convenient for.

In this embodiment, the extension length of the first ground pole 131 is not less than the extension length of the first high-voltage pole from the plane of the outer surface of the first mounting seat 110. Adopt above-mentioned structure setting for when vehicle-end connector 100 is connected with the battery package, first ground connection utmost point post 131 is not later than first high-voltage utmost point post and battery package contact, and when vehicle-end connector 100 and battery package disconnection, first ground connection utmost point post 131 is not earlier than first high-voltage utmost point post and battery package separation, has guaranteed whole electric connection process's ground connection security.

As shown in fig. 1-2, the vehicle end connector 100 includes a first positioning assembly 160, and the first positioning assembly 160 is disposed on the first mounting seat 110. The battery terminal connector 200 includes a second positioning member 250, and the second positioning member 250 is disposed on the second mounting seat 210. The first positioning member 160 and the second positioning member 250 cooperate to achieve the coupling positioning of the vehicle-end connector 100 and the battery-end connector 200. Through set up first locating component 160 and the second locating component 250 of cooperateing respectively on end connector 100 and battery end connector 200, the butt joint location when not only being convenient for end connector 100 is connected with the battery package electricity still guarantees that the battery package contacts well in the locking in-process, takes place to jolt when avoiding the vehicle motion and leads to the stability that the bad contact influence electricity is connected.

As shown in fig. 1-2, the first positioning assembly 160 includes a positioning post and the second positioning assembly 250 includes a sleeve portion; the positioning column sequentially comprises a limiting section and a positioning section from the surface of the first mounting seat 110, the diameter of the limiting section is larger than that of the positioning section, the positioning section is used for being matched with the sleeve portion, and the limiting section is used for limiting the relative displacement of the vehicle-end connector 100 and the battery-end connector 200 along the axial direction of the positioning column. The accurate positioning of car end connector 100 and battery end connector 200 is realized to the location section of fixing a position, and it is spacing that spacing section can carry out the axial, and excessive displacement leads to first ground connection utmost point post 131 to damage when preventing the cooperation of car end connector 100 and battery end connector 200 to need not additionally to set up and prevent the excessive mechanism, make the better compactness of connector structure.

As shown in fig. 1, in the present embodiment, the number of the positioning posts is two, and the two positioning posts are respectively disposed at two ends of the first mounting seat 110, so as to further ensure positioning accuracy of the battery pack during locking and electrical contact stability after positioning. Of course, the number of the positioning columns may also be three or more, and is not described herein again.

From the plane of the outer surface of the first mounting seat 110, the extension length of the first ground terminal 131 is smaller than that of the positioning post. Above-mentioned structure sets up for when vehicle-end connector 100 is connected with the battery package electricity, vehicle-end connector 100's reference column cooperatees in order to fix a position the direction with the sleeve portion of battery-end connector 200 earlier, and later vehicle-end connector 100's first high voltage utmost point post and first ground connection utmost point post 131 just contact with the last corresponding ground connection part of battery-end connector 200, guarantee vehicle-end connector 100 and the smooth butt joint of battery package, avoid leading to the fact the damage because of the inaccurate pair of first ground connection utmost point post 131 of location.

In this embodiment, the maximum compression stroke of the first ground terminal 131 is greater than the height difference between the end surface of the electrical contact end of the first ground terminal 131 and the end surface of the positioning post spacing section. With the above structure, the limit section of the positioning post and the sleeve portion are abutted against each other to contact each other, so that the first grounding terminal 131 does not reach or approach the maximum compression stroke when being abutted against and pressed, thereby protecting the first grounding terminal 131 and preventing the electric contact end of the first grounding terminal 131 from being damaged due to the extrusion acting force.

The outer wall surface of the first ground terminal 131 is sleeved with a first elastic member 132, the first elastic member 132 is located in the first mounting hole, one end of the first elastic member 132 abuts against the first ground terminal 131, and the other end abuts against the first mounting portion 111. Be connected through first ground connection utmost point post 131 and first elastic component 132 for can produce when being pressed first ground connection utmost point post 131 and float, thereby avoid first ground connection utmost point post 131 to take place the rigidity collision, can exert force to first ground connection utmost point post 131 after first elastic component 132 is compressed deformation simultaneously and make first ground connection utmost point post 131 and the second ground connection subassembly 220 that the battery wrapped up be connected more stably. As shown in fig. 4, 5 and 9, in the present embodiment, the first elastic element 132 is a spring, and the first ground terminal 131 is telescopically inserted into the first mounting hole by compression and restoration of the spring.

As shown in fig. 10, the outer wall surface of the first low-voltage pole 141 is sleeved with a second elastic member 142, the second elastic member 142 is located in the second mounting hole, one end of the second elastic member 142 abuts against the first low-voltage pole 141, and the other end abuts against the first mounting portion 111. Be connected through first low voltage utmost point post 141 and second elastic component 142 for can produce when being pressed first low voltage utmost point post 141 and float, thereby avoid first low voltage utmost point post 141 to take place the rigidity collision, can exert force to first low voltage utmost point post 141 after second elastic component 142 is compressed deformation simultaneously and make first low voltage utmost point post 141 and the second low voltage utmost point post on the battery package be connected more stably. Similarly, the outer wall of the first high-voltage pole is also sleeved with an elastic member to realize that the first high-voltage pole can be stretched in the mounting hole formed in the second mounting portion 112, and the description is omitted here.

As shown in fig. 5-6, first grounding assembly 130 further includes a flexible electrical connector 400 and a grounding plug 500; one end of the flexible electrical connector 400 is electrically connected with the terminal of the first grounding pole 131, and the other end of the flexible electrical connector 400 is electrically connected with the grounding plug 500; the flexible electrical connector 400 accommodates the axial and radial relative displacement variation between the first ground post 131 and the ground plug 500 through the flexible cavity. By adopting the structure, the flexible electric connector 400 can adapt to the relative displacement change of all angles such as axial direction, radial direction and the like, so that the first grounding assembly 130 has a telescopic margin when being in butt joint with the second grounding assembly 220 on the battery pack to float, and the problem that the electric connection performance is poor due to the change of the relative displacement or the flexible electric connector 400 is damaged due to the pulling stress is avoided.

The ground plug 500 is connected to the metal housing 120 of the vehicle-end connector 100. The metal shell 120 of the vehicle end connector 100 is directly grounded with the vehicle body, so that grounding is simple, and redundant grounding parts are avoided.

In this embodiment, the flexible electrical connector 400 is a braided wire, the braided wire has a hollow structure, the middle portion of the braided wire protrudes outwards, and the inside of the middle portion of the braided wire forms a flexible cavity. The flexible electric connector 400 adopts a braided belt wire with a hollow structure, and has simple structure and low cost.

As shown in fig. 5, the first grounding assembly 130 further includes an insulation cover 600, and the insulation cover 600 is sleeved on the outer periphery of the flexible electrical connector 400. Insulating boot 600 is provided to protect flexible electrical connector 400 and prevent interference between flexible electrical connector 400 and other components in vehicle end connector 100 or arcing that may affect the normal operation of other electrical components.

The interfaces at the two ends of the insulating cover 600 are respectively connected with the first mounting part 111 and the grounding plug 500, so that the insulating cover 600 is prevented from generating pressure on the flexible electric connector 400 to influence the flexibility of the flexible electric connector 400, meanwhile, the insulating cover 600 is enabled to completely wrap the flexible electric connector 400, and the sealing performance of the insulating cover 600 on the flexible electric connector 400 is improved.

As shown in fig. 1, 4 and 5, the vehicle end connector 100 further includes a sealing member 300, the sealing member 300 covers the outer wall of the first mounting seat 110, and the second mounting seat 210 further includes a sealing portion, and the sealing portion is located on the outer wall of the second mounting seat 210. The seal 300 is adapted to abut against a seal portion to achieve a sealed connection between the vehicle-end connector 100 and the battery-end connector 200. Prevent through setting up sealing member 300 that end connector 100 from docking the back with the battery package, outside dust, rainwater etc. get into through both connection gap, guarantee inside electric connection assembly's sealed effect, improve the stability and the security of electricity connection.

The embodiment also provides an electric vehicle, which comprises the vehicle-end connector 100 in the electric connection device. The electric vehicle is connected to a battery terminal connector of a battery pack mounted on the electric vehicle via a vehicle terminal connector 100. Also be provided with on the battery end connector of battery package with the first ground connection subassembly 130 complex ground connection subassembly on this vehicle end connector 100 for vehicle end connector 100 provides ground return circuit for the battery package when carrying out the electricity with the battery package and being connected, when the battery package takes place unexpected circumstances such as electric leakage, can prevent that the human body from electrocuteeing, prevent that equipment and circuit from suffering the damage, thereby guarantee operating personnel's personal safety, guarantee electric automobile's electric power system normal operating.

It should be understood that the vehicle end connector 100 and the battery end connector 200 of the electrical connecting device in the above embodiments can be manufactured and used independently, the vehicle end connector 100 can be connected to other matched battery packs, and the battery end connector 200 can be connected to other matched electric vehicles, and are not limited to the combination of the vehicle end connector 100 and the battery end connector 200.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. The utility model provides an electric connecting device, its characterized in that, including locating the vehicle end connector on the electric automobile and locating the battery end connector on the battery package, the vehicle end connector includes first ground connection subassembly, the battery end connector includes second ground connection subassembly, first ground connection subassembly with second ground connection subassembly is connected in order to realize the electric automobile with the ground return circuit of battery package.

2. The electrical connection device as defined in claim 1, wherein the vehicle end connector comprises a first mounting seat and the battery end connector comprises a second mounting seat, the first mounting seat being disposed opposite the second mounting seat; the first grounding assembly penetrates through the first mounting seat, and the second grounding assembly penetrates through the second mounting seat.

3. The electrical connection device as defined in claim 2, wherein the first grounding assembly comprises a first grounding post having an electrical contact end and a terminal end; first mount pad includes first installation department, be equipped with first mounting hole on the first installation department, first ground connection utmost point post telescopic wears to locate first mounting hole.

4. The electrical connection device as claimed in claim 3, wherein the first ground terminal has a mounting groove, the mounting groove is formed on the end surface of the electrical contact end, and a conductive elastic member is embedded in the mounting groove and protrudes from the end surface of the electrical contact end.

5. The electrical connection device as claimed in claim 4, wherein the conductive elastic member is a conductive spring.

6. The electrical connection device as claimed in claim 3, wherein the vehicle end connector further comprises a first low voltage component and a first high voltage component, both of which pass through the first mounting seat.

7. The electrical connection device of claim 6, wherein the first low-voltage assembly comprises a first low-voltage pole, the first mounting portion further comprises a second mounting hole, and the first low-voltage pole is telescopically inserted into the second mounting hole.

8. The electrical connection device of claim 7, wherein the number of the first low-voltage poles is plural, the number of the first ground poles is one, and the first ground pole is disposed on one side of the plural first low-voltage poles or the first ground pole is disposed between the plural first low-voltage poles.

9. The electrical connection device as claimed in claim 7, wherein the number of the first ground poles is two, and two first ground poles are respectively disposed at two sides of the first low voltage pole.

10. The electrical connection device as claimed in claim 7 wherein the first ground pole post has a greater extension than the extension of the first low voltage pole post from the plane of the outer surface of the first mounting socket.

11. The electrical connection device as claimed in claim 6 wherein the first high voltage component comprises a first high voltage pole; the first mounting seat further comprises a second mounting portion, a third mounting hole is formed in the second mounting portion, and the first high-voltage pole is arranged in the third mounting hole in a penetrating mode in a telescopic mode.

12. The electrical connection device as claimed in claim 11, wherein the number of the first high-voltage poles is two, and the two high-voltage poles are respectively disposed on two sides of the first mounting portion.

13. The electrical connection device as claimed in claim 11, wherein the first ground pole post has an extension length no less than an extension length of the first high voltage pole post from a plane of the outer surface of the first mounting seat.

14. The electrical connector assembly as recited in claim 6, wherein the end connector comprises a first positioning member disposed on the first mounting seat, the battery end connector comprises a second positioning member disposed on the second mounting seat, and the first positioning member and the second positioning member cooperate to position the end connector and the battery end connector.

15. The electrical connection device as claimed in claim 14 wherein the first locating assembly comprises a locating post and the second locating assembly comprises a sleeve portion; the positioning column comprises a limiting section and a positioning section in sequence from the surface of the first mounting seat, the diameter of the limiting section is larger than that of the positioning section, the positioning section is used for being matched with the sleeve part, and the limiting section is used for limiting relative displacement of the vehicle-end connector and the battery-end connector along the axial direction of the positioning column.

16. The electrical connection device as claimed in claim 15, wherein the number of the positioning posts is two, and two positioning posts are respectively disposed at two ends of the first mounting seat.

17. The electrical connection device as claimed in claim 15, wherein the first ground terminal post extends less than the positioning post from a plane of the outer surface of the first mounting seat.

18. The electrical connection device as claimed in claim 17, wherein the maximum compression stroke of the first ground pole is greater than the height difference between the end surface of the electrical contact end of the first ground pole and the end surface of the positioning post spacing section.

19. The electrical connection device as claimed in claim 3, wherein an elastic member is sleeved on an outer wall surface of the first ground terminal, the elastic member is located in the first mounting hole, one end of the elastic member abuts against the first ground terminal, and the other end of the elastic member abuts against the first mounting portion.

20. The electrical connection device as claimed in claim 3 wherein the first grounding assembly further comprises a flexible electrical connector and a grounding plug; one end of the flexible electric connecting piece is electrically connected with the wiring end of the first grounding pole, and the other end of the flexible electric connecting piece is electrically connected with the grounding plug; the flexible electric connector is adapted to the relative displacement change of the first grounding pole and the grounding plug at each angle in the axial direction and the radial direction through the flexible cavity.

21. The electrical connection device as defined in claim 20, wherein the ground plug is connected to the metal shell of the vehicle end connector.

22. The electrical connection device as claimed in claim 20 wherein the flexible electrical connector is a braided ribbon wire having a hollow configuration with a central portion of the braided ribbon wire projecting outwardly, the interior of the central portion of the braided ribbon wire forming the flexible cavity.

23. The electrical connection device as claimed in claim 20 wherein the first grounding assembly further comprises an insulating shield disposed around the outer perimeter of the flexible electrical connector.

24. The electrical connection device as claimed in claim 23, wherein the two end interfaces of the insulating cover are connected to the first mounting portion and the ground plug, respectively.

25. The electrical connection device as defined in any one of claims 2-24, wherein the vehicle end connector further comprises a sealing member, the sealing member is wrapped around an outer wall of the first mounting seat, the second mounting seat further comprises a sealing portion, and the sealing portion is located on an outer wall of the second mounting seat; the sealing piece is used for abutting against the sealing part to realize the sealing connection between the vehicle-end connector and the battery-end connector.

26. An electric vehicle comprising a vehicle end connector in the electrical connection device according to any one of claims 1 to 25.