CN216290214U

CN216290214U - Electric connecting device with accurate linkage mechanism and charging bin

Info

Publication number: CN216290214U
Application number: CN202023341853.1U
Authority: CN
Inventors: 张建平; 陈新雨; 廖鹏
Original assignee: Aulton New Energy Automotive Technology Co Ltd
Current assignee: Aulton New Energy Automotive Technology Co Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2022-04-12
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses an electric connecting device with an accurate linkage mechanism and a charging bin, wherein the electric connecting device comprises a second connector, the linkage mechanism and a driving mechanism, and the second connector is used for being electrically connected with a first connector; the linkage mechanism comprises a gear and a rack which are meshed with each other for transmission, the gear is arranged in the charging bin, and the rack is connected to the second connector; the driving mechanism is used for driving the gear to rotate so as to drive the second connector to move in the direction close to or far away from the first connector, so that the second connector and the first connector are electrically connected or disconnected. The electric connection device drives the gear to rotate by utilizing the driving mechanism, so that the rack is driven by the rotating gear to move, and then the rack drives the second connector to move, thereby realizing the electric connection or disconnection of the second connector. The gear is meshed with the rack, the second connector can be accurately moved to a preset position, the precision of the moving distance of the second connector can be improved, and the reliability of the electric connection device is improved.

Description

Electric connecting device with accurate linkage mechanism and charging bin

Technical Field

The utility model relates to an electric connecting device with an accurate linkage mechanism and a charging bin.

Background

The battery mounting methods of electric vehicles are generally classified into a fixed type and a replaceable type, wherein the fixed type battery is generally fixed on the vehicle, and the vehicle is directly used as a charging object during charging. The replaceable battery is generally movably mounted, and can be taken down at any time and placed in a charging bin for replacement or charging, and then mounted on the vehicle body after replacement or charging is finished.

At present, the battery pack is placed on a charging frame, and the electric connection is realized by a mode that the battery pack drives an electric connector to move downwards by means of the gravity of the battery pack. However, the moving distances of the electric connector to be driven are different according to the lengths of the battery packs of different models, so that the same charging bin cannot adopt the mode of driving the electric connector to move by the gravity of the battery pack before in order to adapt to various battery pack models, and the connector needs to be driven to move by corresponding distances according to the lengths of the battery packs of different models.

In patent publication No. CN105118952A, a first driving member is disposed on a charging terminal, a second driving member is disposed on a battery, and the first driving member and the second driving member are attracted by electromagnetic induction to control the movement of the charging terminal, so as to achieve conduction between an electrical connection portion and the battery; the first driving piece is driven to be away from the second driving piece through the resetting piece, so that the electric connection part is disconnected from the battery. In the patent document, the driving members need to avoid high and low voltage lines, and the driving members that are matched with each other are respectively disposed on the charging terminal and the battery, and then, in combination with the diagram, in order to ensure the smooth movement of the electrical connection device, a mode of respectively disposing a pair of driving members on both sides of the charging terminal is adopted, and two pairs of driving members simultaneously drive the same charging terminal, so that the asynchronization is easily caused, and the situations that the electrical connection device cannot move in parallel, the pressing force on one side of the electrical connection device is greater than that on the other side, and the like occur. And because the first driving piece has certain volume, needs to occupy certain installation and removal space, and the mounted position is restricted greatly. In addition, the moving distance of the first driving member is difficult to accurately control, and the second driving member is likely to be impacted.

In patent publication No. CN208665012U, the conductive plate of the rail vehicle is in contact with the ground plate by engaging and moving the rack and pinion, but the rack is disposed in the middle of a long slide bar, and the ground plate is connected to the end of the rack, which results in a large installation space as a whole.

Patent publication No. CN111251918A discloses that an electrical connection mechanism is driven by a push-pull mechanism to be electrically connected to an electrical connector on a battery pack, the push-pull mechanism uses the gravity of the battery pack as a driving force, and the moving distance of the electrical connection mechanism is fixed, so that the battery pack is not suitable for battery packs of different lengths and types, and occupies a large height space.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides an electric connecting device with a precise linkage mechanism and a charging bin comprising the same.

The utility model solves the technical problems through the following technical scheme:

an electrical connection device disposed within a charging chamber for carrying and charging a battery pack, the battery pack having a first connector, the electrical connection device comprising:

a second connector for making an electrical connection with the first connector;

the linkage mechanism comprises a gear and a rack which are meshed with each other for transmission, the gear is arranged in the charging bin, and the rack is connected to the second connector;

the driving mechanism is used for driving the gear to rotate, so that the second connector is driven to move in the direction close to or far away from the first connector, and the second connector and the first connector are electrically connected or disconnected.

In this scheme, through utilizing actuating mechanism drive gear to rotate to the rack removal is driven to the pivoted gear, and then the rack drives the second connector and removes, realizes the electricity of second connector or breaks off. The gear meshes with the rack mutually, has improved the synchronism of second connector overall movement, and through the number of turns of rotation of control gear, can be accurate remove the second connector to predetermineeing the position, can improve the precision of controlling second connector displacement, improve electric connection device's reliability moreover.

Preferably, the electrical connection device further includes a connector bearing surface, the connector bearing surface is used for bearing the second connector and the linkage mechanism, and the second connector moves along the connector bearing surface under the driving of the linkage mechanism, so that the second connector is electrically connected with or disconnected from the first connector.

In the scheme, the connector bearing surface provides a movable supporting surface for the second connector and the linkage mechanism, and the second connector and the linkage mechanism move on the connector bearing surface, so that the phenomenon of offset and dislocation generated in the moving process is effectively avoided, the electric connection or disconnection between the second connector and the first connector is ensured, and the safety and stability are improved.

Preferably, the first side surface of the rack is a tooth surface; the second side face of the rack is in contact with the bearing face of the connector, the second side face is opposite to the first side face, and the gear is pressed on the first side face of the rack; and/or the presence of a gas in the gas,

the gear is arranged on the bearing surface of the connector and is arranged outside the moving area of the second connector; and/or the presence of a gas in the gas,

the rotation center line of the gear is parallel or vertical to the bearing surface of the connector.

In this scheme, the gear pressure is located the first side of rack, and the steady slip of rack on the connector loading end is driven to the pivoted gear, can improve the stability of second connector removal in-process and the accuracy of position. The gear is arranged outside the moving area of the second connector, so that the gear can avoid interfering with the movement of the second connector, and the safety and the reliability of the electric connecting device can be improved.

Preferably, the second connector comprises a fixed plate, a floating plate, at least one elastic member and a plurality of poles, the floating plate is movably mounted on the first side surface of the fixed plate through the elastic member, the poles are mounted on the floating plate, the poles have electrical contact ends and connection ends, the electrical contact ends are used for contacting with the first connector to form electrical connection, and the connection ends penetrate through the fixed plate and are used for connecting with a power cable;

the rack is connected to the fixed plate.

In this scheme, rack drive fixed plate to be close to or keep away from first connector along predetermineeing the route under actuating mechanism's effect, thereby realize the electricity between first connector and the second connector and be connected or break off, have the advantage that control is accurate, stability is high.

Preferably, one end of the rack is connected to the fixing plate and is not exposed out of the first side surface; the other end of the rack is exposed out of the second side surface of the fixing plate and connected with the second side surface, and the second side surface is opposite to the first side surface.

In the scheme, one end of the rack is connected to the fixing plate and is not exposed out of the first side surface, so that the rack is prevented from blocking the battery pack from entering the battery bin, and the safety and the reliability of the electric connection device can be improved.

Preferably, the electrical connection device further comprises at least one sliding guide mechanism for guiding the second connector to move along a preset path in the charging bin.

In this scheme, slide guide mechanism has guaranteed that the second connector can follow and predetermines the route removal, realizes that the second connector is connected with the accurate electricity of first connector, and has effectively avoided the second connector to produce the skew dislocation phenomenon at the in-process that removes, has improved electric connector's safety and stability greatly.

Preferably, the rack is connected to the middle position of the second connector, the number of the sliding guide mechanisms is two, and the two sliding guide mechanisms are arranged on two sides of the rack.

In this scheme, the rack sets up the intermediate position at the second connector, and two slide guiding mechanisms set up in the both sides of rack for the effort that the rack was applyed the second connector can transmit to whole second connector better, avoids certain one end atress of second connector too big, can make the second connector dock first connector more smoothly, can improve the synchronism that the second connector docked first connector.

Preferably, the sliding guide mechanism comprises a sliding block and a sliding rail which are arranged in a matching way; one of the sliding block or the sliding rail is connected to the second connector, and the other of the sliding block or the sliding rail is fixed in the charging bin.

In this scheme, slider and slide rail have the direction and restrict the effect, and one in slider and the slide rail is connected with the second connector, and another in slider and the slide rail is fixed to be set up in the storehouse that charges, guarantees through slider and slide rail relative movement that the second connector removes along predetermineeing the route, simple structure, and the installation sets up very conveniently.

Preferably, the electric connection device further includes a rotation shaft and two shaft seats, the two shaft seats are disposed on two sides of the gear, the shaft seats are provided with bearings, two ends of the rotation shaft penetrate through the two bearings, and the driving mechanism is connected to the gear through the rotation shaft in a transmission manner.

In this scheme, the both sides of gear are located to two bearing frames that have the bearing to can erect the axis of rotation at the both ends of axis of rotation, and then the axis of rotation is more steady at the rotation in-process, and correspondingly, rack motion also can be more steady, reduces the fluctuation of removal in-process speed.

Preferably, an axial direction of the rotating shaft is perpendicular to a moving direction of the second connector.

In this scheme, the axial of axis of rotation is perpendicular to the moving direction of second connector, can practice thrift the space of moving direction, improves electric connection device's compactness.

A charging magazine comprising an electrical connection device as described above.

In this scheme, the storehouse of charging is through utilizing actuating mechanism drive gear to rotate to the pivoted gear drives the rack and removes, and then the rack drives the second connector and removes, realizes the electricity of second connector or breaks off. The gear meshes with the rack mutually, has improved the synchronism of second connector overall movement, and through the number of turns of rotation of control gear, can be accurate remove the second connector to predetermineeing the position, can improve the precision of controlling second connector displacement, improve electric connection device's reliability moreover.

Preferably, the charging bin further comprises:

the battery bearing surface is used for bearing a battery pack;

the battery sensor is used for detecting whether a battery pack exists on the battery bearing surface;

a telescopic sensor for detecting a telescopic position of the second connector;

and the control unit is used for being in signal connection with the battery sensor, the telescopic sensor and the driving mechanism.

In this scheme, realize removing the accurate control that targets in place to the second connector through battery sensor and flexible sensor, it is more convenient to use, has effectively avoided the skew dislocation phenomenon that the second connector produced at the removal in-process, has guaranteed that the second connector removes suitable distance in order to with first connector between realize being connected or the disconnection, has improved the safety and stability in storehouse of charging greatly.

On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the utility model.

The positive progress effects of the utility model are as follows:

according to the electric connecting device, the driving gear is driven to rotate by the driving mechanism, so that the rack is driven to move by the rotating gear, and then the rack drives the second connector to move, and the electric connection or disconnection of the second connector is realized. The gear meshes with the rack mutually, has improved the synchronism of second connector overall movement, and through the number of turns of rotation of control gear, can be accurate remove the second connector to predetermineeing the position, can improve the precision of controlling second connector displacement, improve electric connection device's reliability moreover.

Drawings

Fig. 1 is a schematic structural diagram of a charging bin according to an embodiment of the present invention.

Fig. 2 is a schematic view of a portion of the electrical connector of fig. 1, showing a driving mechanism.

Fig. 3 is an exploded view of the second connector of fig. 1.

Description of reference numerals:

second connector 1

Fixed plate 11

Connection port 111

Limiting hole 112

First side surface 113

Second side surface 114

Floating plate 12

Spacing column 121

Elastic member 13

Pole 14

Drive mechanism 2

Slide guide mechanism 3

Slider 31

Slide rail 32

Connecting post 32

Linkage mechanism 4

Gear 41

Rack 42

Rotating shaft 43

Axle seat 44

Bearing 45

Battery carrying surface 51

Connector bearing surface 52

Detailed Description

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

As shown in fig. 1-3, the present embodiment is an electrical connection device, which is disposed in a charging chamber, the charging chamber is used for carrying and charging a battery pack, the battery pack has a first connector, the electrical connection device includes a second connector 1, a linkage mechanism 4 and a driving mechanism 2, the second connector 1 is used for electrically connecting with the first connector; the linkage mechanism 4 comprises a gear 41 and a rack 42 which are meshed with each other for transmission, the gear 41 is arranged in the charging bin, and the rack 42 is connected to the second connector 1; the driving mechanism 2 is used for driving the gear 41 to rotate, so as to drive the second connector 1 to move in a direction close to or far away from the first connector, so that the second connector 1 is electrically connected with or disconnected from the first connector.

In the embodiment, the gear 41 is driven to rotate by the driving mechanism 2, so that the rack 42 is driven by the rotating gear 41 to move, and the rack 42 drives the second connector 1 to move, thereby realizing the electrical connection or disconnection of the second connector 1. The gear 41 is meshed with the rack 42, so that the whole movement synchronism of the second connector 1 is improved, the second connector 1 can be accurately moved to a preset position by controlling the number of rotation turns of the gear 41, the precision of the movement distance of the second connector 1 can be improved, and the reliability of the electric connection device is improved.

As shown in fig. 2, the electrical connection device further includes a connector bearing surface 52, the connector bearing surface 52 is used for bearing the second connector 1 and the linkage mechanism 4, the second connector 1 is driven by the linkage mechanism 4 to move along the connector bearing surface 52, so that the second connector 1 is electrically connected or disconnected with the first connector. The connector bearing surface 52 provides a movable supporting surface for the second connector 1 and the linkage mechanism 4, and the second connector and the linkage mechanism 4 move on the connector bearing surface 52, so that the phenomenon of offset and dislocation generated in the moving process is effectively avoided, the electric connection or disconnection between the second connector and the first connector is ensured, and the safety and stability are improved.

In fig. 2, the first side of the rack 42 is a tooth face; the second side of rack 42 contacts with connector bearing surface 52, the second side is opposite to the first side, and gear 41 is pressed on the first side of rack 42. The gear 41 is disposed on the connector bearing surface 52, and the gear 41 is disposed outside the moving region of the second connector 1. The centerline of rotation of gear 41 is parallel or perpendicular to connector bearing surface 52. The gear 41 is pressed on the first side surface of the rack 42, and the rotating gear 41 drives the rack 42 to slide stably on the bearing surface 52 of the connector, so that the stability and the position accuracy of the second connector 1 in the moving process can be improved. The gear 41 is provided outside the moving region of the second connector 1, so that the gear 41 can avoid interference with the movement of the second connector 1, and the safety and reliability of the electrical connection device can be improved.

As shown in fig. 2 and 3, the second connector 1 includes a fixed plate 11, a floating plate 12, at least one elastic member 13, and a plurality of poles 14, wherein the floating plate 12 is movably mounted on a first side surface 113 of the fixed plate 11 through the elastic member 13, the plurality of poles 14 are mounted on the floating plate 12, the poles 14 have electrical contact ends and terminals, the electrical contact ends are used for contacting with the first connector to form electrical connection, and the terminals penetrate through the fixed plate 11 and are used for connecting with a power cable; the rack 42 is connected to the fixed plate 11. The rack 42 drives the fixing plate 11 and moves close to or away from the first connector along a preset path under the action of the driving mechanism 2, so that the first connector and the second connector 1 are electrically connected or disconnected, and the advantages of accurate control and high stability are achieved.

In fig. 2, one end of the rack 42 is connected to the fixed plate 11 and is not exposed to the first side surface 113; the other end of the rack 42 is exposed to the second side surface 114 of the fixed plate 11, and the second side surface 114 is opposite to the first side surface 113. One end of the rack 42 is connected to the fixing plate 11 and is not exposed out of the first side surface 113, so that the rack 42 is prevented from obstructing the battery pack from entering the battery compartment, and the safety and reliability of the electrical connection device can be improved.

In fig. 2, the electrical connection device further includes a rotating shaft 43 and two shaft seats 44, the two shaft seats 44 are disposed on two sides of the gear 41, bearings 45 are disposed on the shaft seats 44, two ends of the rotating shaft 43 penetrate through the two bearings 45, and the driving mechanism 2 is connected to the gear 41 through the rotating shaft 43. Two bearing seats 44 with bearings 45 are arranged on two sides of the gear 41, so that the rotating shafts 43 can be erected at two ends of the rotating shafts 43, the rotating shafts 43 are more stable in the rotating process, correspondingly, the movement of the rack 42 is also more stable, and the speed fluctuation in the moving process is reduced.

As a specific embodiment, the axial direction of the rotation shaft 43 is perpendicular to the moving direction of the second connector 1. The axial direction of the rotating shaft 43 is perpendicular to the moving direction of the second connector 1, so that the space in the moving direction can be saved, and the compactness of the electric connecting device can be improved.

In fig. 2, the electrical connection device further comprises at least one sliding guide mechanism 3, and the sliding guide mechanism 3 is used for guiding the second connector 1 so that the second connector 1 moves along a preset path in the charging bin. The sliding guide mechanism 3 ensures that the second connector 1 can move along a preset path, realizes the accurate electric connection of the second connector 1 and the first connector, effectively avoids the offset and dislocation phenomenon of the second connector 1 in the moving process, and greatly improves the safety and stability of the electric connection device.

As a specific embodiment, the sliding guide mechanism 3 includes a sliding block 31 and a sliding rail 32 which are arranged in a matching manner; one of the slider 31 or the slide rail 32 is connected to the second connector 1, and the other of the slider 31 or the slide rail 32 is fixed in the charging bin. The sliding block 31 and the sliding rail 32 have guiding and limiting functions, one of the sliding block 31 and the sliding rail 32 is connected with the second connector 1, the other one of the sliding block 31 and the sliding rail 32 is fixedly arranged in the charging bin, and the second connector 1 is guaranteed to move along a preset path through relative movement of the sliding block 31 and the sliding rail 32.

The rack 42 is connected to the middle position of the second connector 1, the number of the sliding guide mechanisms 3 is two, and the two sliding guide mechanisms 3 are arranged on two sides of the rack 42. The rack 42 is arranged in the middle of the second connector 1, and the two sliding guide mechanisms 3 are arranged on two sides of the rack 42, so that the acting force applied to the second connector 1 by the rack 42 can be better transmitted to the whole second connector 1, the phenomenon that one end of the second connector 1 is stressed too much is avoided, the second connector 1 can be more smoothly butted with the first connector, and the synchronism of the second connector 1 in butt joint with the first connector can be improved. The "intermediate position" in this embodiment refers to a region near the middle, not an absolutely right middle point.

Fig. 3 shows a schematic view of the structure of the second connector 1. The second connector 1 comprises a fixed plate 11, a floating plate 12, at least one elastic piece 13 and a plurality of poles 14, wherein the fixed plate 11 is connected to the driving mechanism 2, the bottom of the fixed plate 11 is a smooth surface, and the second connector 1 is slidably connected to the smooth surface through the smooth surface; the floating plate 12 is movably mounted on the first side surface of the fixed plate 11 through an elastic member 13, a plurality of poles 14 are mounted on the floating plate 12, the poles 14 have an electrical contact end and a terminal, the electrical contact end is used for contacting with a first connector to form electrical connection, and the terminal penetrates through the fixed plate 11 and is used for connecting with a power cable.

The floating plate 12 is movably connected to the fixed plate 11 by the elastic member 13, and the electrical connection between the second connector 1 and the first connector is more stable. Meanwhile, the second connector 1 is in contact with the first connector through the pole 14 to form electric connection, the fixing plate 11 is provided with a through hole, and the wiring end of the pole 14 penetrates through the through hole in the fixing plate 11, so that the pole 14 cannot be in contact with the fixing plate 11 when the second connector 1 is used, and the safety and stability of the electric connection device with the sliding plane are further improved.

The number of the elastic members 13 is plural, and the plural elastic members 13 are respectively provided at both ends of the floating plate 12 symmetrically in the longitudinal direction thereof. A plurality of elastic components 13 set up both ends about floating plate 12 respectively, and both ends do not set up elastic component 13 from top to bottom to effectively reduce the whole height that has slip planar electric connection device, the structure is compacter, and area occupied further reduces.

Two connectors 111 are opened on the fixing plate 11, the plurality of elastic elements 13 are respectively disposed in the two connectors 111, and both ends of the floating plate 12 extend into the connectors 111 and are respectively connected with the plurality of elastic elements 13. Effectively avoid a plurality of elastic component 13 occupation space resources, avoid interfering the phenomenon, the structure is compacter, and stability is higher.

A plurality of limiting columns 121 are convexly extended from one side surface of the floating plate 12 facing the fixed plate 11, a plurality of limiting holes 112 are formed in the fixed plate 11 corresponding to the limiting columns 121, the aperture of each limiting hole 112 is larger than the outer diameter of each limiting column 121, and the limiting holes 112 are sleeved on the limiting columns 121 and used for limiting the moving range of the floating plate 12 relative to the fixed plate 11. The limiting column 121 is sleeved with the limiting hole 112 to play a limiting role, and the moving range of the floating plate 12 relative to the fixed plate 11 is limited, so that the damage caused by the offset and dislocation of the floating plate 12 in the moving process is effectively avoided, and the safety and stability of the electric connecting device with the sliding plane are further improved.

The embodiment can also be a charging bin which comprises the electrical connection device. The charging bin drives the gear 41 to rotate by using the driving mechanism 2, so that the rotating gear 41 drives the rack 42 to move, and the rack 42 drives the second connector 1 to move, thereby realizing the electrical connection or disconnection of the second connector 1. The gear 41 is meshed with the rack 42, so that the whole movement synchronism of the second connector 1 is improved, the second connector 1 can be accurately moved to a preset position by controlling the number of rotation turns of the gear 41, the precision of the movement distance of the second connector 1 can be improved, and the reliability of the electric connection device is improved.

As an embodiment, the charging magazine further comprises a battery carrying surface 51, a battery sensor, a telescoping sensor and a control unit. The battery carrying surface 51 is used for carrying a battery pack; the battery sensor is used for detecting whether a battery pack exists on the battery bearing surface 51; the telescopic sensor is used for detecting the telescopic position of the second connector 1; the control unit is used for being in signal connection with the battery sensor, the telescopic sensor and the driving mechanism 2 of the electric connection device. The second connector 1 is accurately controlled to move in place through the battery sensor and the telescopic sensor, the use is more convenient, and the safety and stability of the charging bin are greatly improved.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the utility model 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 scope of the utility model, and these changes and modifications are within the scope of the utility model.

Claims

1. An electrical connection device having a precision linkage mechanism disposed within a charging chamber for carrying and charging a battery pack having a first connector, the electrical connection device comprising:

2. The electrical connection device as claimed in claim 1 further comprising a connector bearing surface for bearing the second connector and the linkage, the second connector being moved along the connector bearing surface by the linkage to electrically connect or disconnect the second connector with the first connector.

3. The electrical connection device of claim 2, wherein the first side of the rack is a tooth surface; the second side face of the rack is in contact with the bearing face of the connector, the second side face is opposite to the first side face, and the gear is pressed on the first side face of the rack; and/or the presence of a gas in the gas,

4. The electrical connection device as claimed in claim 1, wherein the second connector comprises a fixed plate, a floating plate, at least one elastic member, and a plurality of poles, wherein the floating plate is movably mounted on the first side surface of the fixed plate through the elastic member, the plurality of poles are mounted on the floating plate, the poles have electrical contact ends for making electrical connection with the first connector and terminals penetrating the fixed plate and for connecting with a power cable;

the rack is connected to the fixed plate.

5. The electrical connection device as claimed in claim 4, wherein one end of the rack is connected to the fixing plate and is not exposed to the first side surface; the other end of the rack is exposed out of the second side surface of the fixing plate and connected with the second side surface, and the second side surface is opposite to the first side surface.

6. The electrical connection device as claimed in claim 1, further comprising at least one sliding guide mechanism for guiding the second connector to move along a predetermined path within the charging compartment.

7. The electrical connection device as claimed in claim 6, wherein the rack is connected to the second connector at a middle position, the number of the slide guide mechanisms is two, and two slide guide mechanisms are provided on both sides of the rack.

8. The electrical connection device as claimed in claim 7 wherein the slide guide mechanism comprises a slider and a slide rail arranged in mating relationship; one of the sliding block or the sliding rail is connected to the second connector, and the other of the sliding block or the sliding rail is fixed in the charging bin.

9. The electrical connection device as claimed in claim 1, further comprising a rotation shaft and two shaft seats, wherein the two shaft seats are disposed on two sides of the gear, the shaft seats are provided with bearings, two ends of the rotation shaft are inserted into the two bearings, and the driving mechanism is drivingly connected to the gear through the rotation shaft.

10. The electrical connection device as claimed in claim 9, wherein the axis of the rotation shaft is perpendicular to the moving direction of the second connector.

11. A charging magazine comprising an electrical connection device according to any of claims 1-10.

12. The charging bin of claim 11, further comprising:

the battery bearing surface is used for bearing a battery pack;