CN209981619U

CN209981619U - Plugging mechanism for connector, socket unit and battery rack

Info

Publication number: CN209981619U
Application number: CN201822013441.1U
Authority: CN
Inventors: 李楠; 田小涛; 丁习坤; 刘俊; 马永跃; 林海岩
Original assignee: NIO Co Ltd
Current assignee: NIO Co Ltd
Priority date: 2018-02-11
Filing date: 2018-12-03
Publication date: 2020-01-21
Anticipated expiration: 2028-12-03
Also published as: CN108263353A; CN109449676B; CN109449676A

Abstract

The application discloses a plug mechanism, a socket unit and a battery rack for a connector. The plugging mechanism comprises an electric drive device, a mounting table with a connector fixed thereon, the mounting table is connected with an output end of the electric drive device in a connecting mode so that the mounting table moves for a stroke under the drive of the electric drive device, a sensor device is configured to sense at least one position of the mounting table in the stroke, and the electric drive device receives position information of the mounting table. When the battery pack needs to be charged, the connector can be used for establishing a standing connection through the plugging machine of the application.

Description

Plugging mechanism for connector, socket unit and battery rack

Technical Field

The application belongs to the field of battery replacement service, and particularly relates to a plugging mechanism for a connector. The application also relates to a socket unit comprising the plugging mechanism and a battery rack comprising the socket unit.

Background

In the field of battery replacement services, particularly battery replacement services for electric vehicles, a power-deficient battery is removed from a vehicle and transported to a dedicated battery compartment or battery rack for storage and charging. Generally, a connection port for charging and a cooling line port for establishing a cooling cycle in the battery pack to dissipate heat from the battery pack at the time of charging are provided on the battery pack. Correspondingly, a plug or socket piece connected with the ports is arranged in the battery compartment where the battery pack is arranged so as to provide charging service. The connection of the plug or socket member may be done manually or automatically. In automatic operation, on the one hand, the plug or socket member can be aligned with the battery pack to connect with the respective port on the battery pack, and on the other hand, the plug or socket member can be disconnected from the battery pack and removed from the battery pack after charging is completed.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the present application is to provide a plugging mechanism for a connector, via which the connection is established.

The plugging mechanism comprises an electric driving device, a mounting table on which a connector is fixed, and the mounting table is connected with an output end of the electric driving device in a structure that the mounting table moves for a stroke under the driving of the electric driving device; a sensor device configured to sense at least one position of the mounting table in the stroke, and the electric drive device receives position information of the mounting table.

In the above-described plugging mechanism, the sensor device includes a sensing element and a sensing object, one of the sensing element and the sensing object is provided on the first mounting plate together with the electric drive device, and the other is configured to move together with the mounting table; the sensing element obtains the position information of the mount table by sensing the sensing object.

In the above inserting and extracting mechanism, the mount table moves in a vertical direction.

In the above inserting and pulling mechanism, the sensing element includes a first sensor and a second sensor arranged along the vertical direction, the first sensor is used for sensing a first position of the mounting table at a high position in the stroke, and the second sensor is used for sensing a second position of the mounting table at a low position in the stroke.

In the above inserting and pulling mechanism, the first sensor and the second sensor are photosensitive sensors, and the sensing object is configured to have a protrusion capable of blocking light emitted from the photosensitive sensors.

In the above-described plugging mechanism, the sensing element is fixed to the first mounting plate, and the sensing object is fixed to the mounting table via the second mounting plate or directly fixed to the mounting table.

In the above inserting and extracting mechanism, further comprising at least one guide device, the mounting table is fixed to the at least one guide device, so that the at least one guide device guides the sensing object to move in a vertical direction during the movement of the mounting table.

In the above-described plugging mechanism, the at least one guide means includes a post fixed to the first mounting plate and a slider moving relative to the post.

In the above inserting and pulling mechanism, the slider has a dovetail groove, and the post is fitted with the dovetail groove.

In the above plugging mechanism, the output end of the electric driving device is an electrically driven push rod, and the tail end of the push rod fixes the mounting table through a bracket.

In the above inserting and pulling mechanism, the electrically driven push rod is an electric push rod standard component.

Another aspect of the present application is to provide a socket unit including the above-described plugging mechanism, wherein the mounting table of the plugging mechanism has a third mounting plate to which the first socket for electrical connection and the second socket for cooling circulation are respectively mounted.

A further aspect of the present application is to provide a socket unit comprising at least two of the above-mentioned plugging mechanisms, wherein one of the plugging mechanisms is provided with a first socket for electrical connection; the other of the plugging mechanisms is provided with a second socket for cooling circulation.

It is still another aspect of the present invention to provide a battery rack for storing battery packs, the battery rack having the above-mentioned socket unit for connecting with the plug unit of the battery pack.

When the battery pack is charged, the electrical socket and the cooling socket can be accurately inserted into the battery pack via the plugging mechanism of the present application. The present application uses an electric drive to drive the movement of the electrical or cooling socket, has structural reliability and reduced cost, and facilitates the insertion and extraction of the electrical or cooling socket. Due to the arrangement of the sensor device, the information about whether the electric socket and the cooling socket move in place can be accurately obtained, so that stable electric connection and cooling circulation are established on the battery pack.

Yet another aspect of the present application is to provide a plugging mechanism for a connector, comprising: the electric drive device comprises an electric drive device and a mounting table on which a connector is fixed, wherein the mounting table is connected with an output end of the electric drive device in a structure that the mounting table moves for a stroke under the drive of the electric drive device.

In the above-mentioned plug mechanism, the mount table includes bedplate and anti-sticking mechanism, the bedplate by the drive of electric drive arrangement, anti-sticking mechanism including float install in first float board on the bedplate with float install in the second float board on the first float board, the connector is fixed in on the second float board.

Yet another aspect of the present application is to provide a socket unit, which includes a charging connector assembly, a water-cooling connector assembly and an inductor, wherein one of the charging connector assembly and the water-cooling connector assembly is the above-mentioned plugging mechanism.

The application relates to a further aspect of providing a socket unit, which comprises a charging connector assembly, a water-cooling connector assembly and an inductor, wherein the charging connector assembly comprises a charging electric push rod arranged on a charging frame, a charging seat plate driven by the charging electric push rod and a charging connector fixed on the charging seat plate; the water-cooling joint assembly comprises a water-cooling electric push rod arranged on the charging frame, a water-cooling base plate driven by the water-cooling electric push rod, a first floating plate arranged on the water-cooling base plate in a floating mode, a second floating plate arranged on the first floating plate in a floating mode, and water-cooling joints fixed on the second floating plate, wherein each water-cooling joint comprises a water inlet and a water outlet which are connected with a water-cooling tank.

Specifically, the inductor is located between the charging joint assembly and the water-cooling joint assembly.

Specifically, the charging connector assembly comprises a pair of vertical guide rails installed on the charging frame, and the vertical guide rails are used for guiding the charging seat plate to vertically lift.

The application also relates to an aspect that provides a battery rack, which comprises a charging rack with a plurality of charging bins and a water cooling box, wherein the socket unit is arranged in each charging rack.

By adopting the technical scheme, the beneficial effects of the technical scheme are that:

there are twice relocation mechanism in this application water-cooling joint subassembly, so can adapt to and the angle deviation between the joint that charges to a great extent, so two joint plug in-process can not lead to the card to die.

Other aspects and features of the present application will become apparent from the following detailed description, which proceeds with reference to the accompanying drawings. It is to be understood, however, that the drawings are designed solely for purposes of illustration and not as a definition of the limits of the application, for which reference should be made to the appended claims. It should be further understood that the drawings are merely intended to conceptually illustrate the structures and procedures described herein, and that, unless otherwise indicated, the drawings are not necessarily drawn to scale.

Drawings

The present application will be more fully understood from the detailed description given below with reference to the accompanying drawings, in which like reference numerals refer to like elements throughout the views. Wherein:

fig. 1 is a partial schematic view of a battery stand to which the present application relates;

FIG. 2 is a schematic structural diagram of an embodiment of a plugging mechanism according to the present application;

FIG. 3 is an exploded view of the insertion and extraction mechanism of FIG. 2;

FIG. 4 is a schematic structural diagram of another embodiment of a plugging mechanism according to the present application;

FIG. 5 is an exploded view of the insertion and extraction mechanism of FIG. 4;

FIG. 6 is a front view of another embodiment of a battery stand according to the present application;

FIG. 7 is a top view of another embodiment of a battery stand of the present application;

fig. 8 is a perspective view of another embodiment of a plugging mechanism according to the present application.

Detailed Description

To assist those skilled in the art in understanding the subject matter claimed herein, specific embodiments thereof are described below in detail with reference to the accompanying drawings.

Fig. 1 shows a partial schematic view of a battery holder provided with a plugging mechanism according to the present application. Two plugging mechanisms 1 are arranged on one side of the battery rack 100, and each plugging mechanism 1 is provided with a socket to be connected with a corresponding plug stored on the battery pack 200 of the battery rack 100. Typically, the battery pack has a connection port for electrical connection and another connection port (e.g., a water cooling port) for a cooling cycle to dissipate heat from the battery pack. When the socket and the corresponding plug are connected, an electrical connection and a cooling cycle are established, respectively. The socket and the plug can also be interchanged, i.e. the plug is arranged on the plugging mechanism, and the socket is arranged on the battery pack.

Returning to the illustrated embodiment, the plugs 201,202 are disposed on the upper surface of one side of the battery pack 200. The plugging mechanism 1 drives the

sockets

31,41 down and into alignment with the plugs 201,202 to achieve connection. When disconnection is required, the plugging mechanism 1 drives the

sockets

31,41 to be lifted. One of the plug mechanisms is used for electrically connecting the socket 41 and the plug 201, the other plug mechanism is used for cooling the circulating socket 31 and the plug 202, and the cooling plug can be sealed automatically after the socket is separated.

Here, the battery pack is an integrated device for providing driving power to the electric vehicle, and is also referred to as a battery pack or a battery module.

Fig. 2 is a schematic view of a plug mechanism for a cooling cycle, and fig. 3 is an exploded view of the plug mechanism of fig. 2. With reference to fig. 2 to 3, the plugging mechanism 1 comprises an electric drive 11, a mounting table 12, a guide 13 and a sensor device 14. The output end of the electric drive 11 is connected with the mounting table 12 and the electric drive 11 drives the mounting table 12 to move. The output of the electric drive 11 may be a push rod 112 driven electrically. For example, but not limiting of, the electric driving device 11 may be a motor 111 and a push rod 112 disposed on an output shaft of the motor 111, and the driving force is converted from a rotational motion of the motor to a linear motion of the push rod. The electrically driven pushrod 112 may also be a commercially available electric pushrod standard. Because the electric drive 11 driven by the motor is rigidly connected and driven, the output linear movement of the push rod 112 has a certain reliability. Compared with other driving modes such as hydraulic driving or pneumatic driving, the electric driving does not need a hydraulic pressure source and an air source and does not generate great noise like the hydraulic driving and the pneumatic driving. The motor 111 and the push rod 112 are vertically provided on the first mounting plate 15, which is also vertically oriented, and are fixed to one side of the battery holder via the first mounting plate 15. As shown in the figure, the power pushrod is mounted to the first mounting plate 15 via a bracket 115.

The socket 31 is mounted on the mounting table 12. In the figure, the mounting table 12 is divided into upper and lower two-layer boards. The upper plate 121 and the lower plate 122 are fixedly connected. The upper plate 121 is connected to the pusher 112. The bracket 113, shaped like an upside-down L, has one end connected to the upper plate 121 and the other end connected to a connection port of the push rod end 114. The lower plate 122 is used for mounting the cooling plug 31. Two holes are provided in the center of the lower plate 122, and two pipes 32 are passed through the holes and both connected to the cooling sockets 31, the two pipes 32 being an inlet pipe and an outlet pipe through which the cooling liquid passes, respectively. The cooling sockets 31 may be mounted to the mounting table 12 by various means of being secured to the lower plate 122, whereby the cooling sockets 31 may move with the mounting table 12. Of course, the mounting plate 12 may be provided with only one layer plate for connection to the pusher 112 and connection to the mounting socket.

The motor works as follows: the motor 111 rotates along one direction, and drives the push rod 112 to drive the mounting table 12 and the cooling socket 31 on the mounting table 12 to descend for a stroke; the motor 111 rotates in the opposite direction to drive the push rod 112 to lift the mounting table 12 and the cooling socket 31 on the mounting table 12 for a stroke.

The guide 13 is disposed in the vicinity of the pusher 112. The guide 13 includes a post 131 and a slider 132. In the figure, the post 131 is a pillar and is fixed to the first mounting plate 15. A dovetail groove 133 is provided on a side of the slider 132 facing the post 131, and the post 131 is shaped to mate with the dovetail groove 133. The other side of the slider 132 is connected to the upper plate 121 of the mount table 12 via the second mount plate 16. When the mount table 12 is raised or lowered, the slider 132 moves together with the mount table 12 and can move in the vertical direction along the column 131. The provision of the dovetail grooves 133 can restrict the movement of the slider 132 in a plurality of directions, thereby ensuring the accuracy of movement of the slider 132 and thus the mount 12.

The sensor device 14 includes a sensing element and a sensing object 140. The sensing elements are sensors 143,144 as will be described below. The sensing element is fixed to the first mounting plate 15, as shown in the figure, the sensing element is fixed to the first mounting plate 15 by a post 131. The sensing object 140 is fixed to the upper plate 121 of the mounting table 12 via the second mounting plate 16, and thus the sensing object 140 can move together with the mounting table 12. The sensing element obtains position information of the mount table in the stroke by sensing the sensing object.

The sensing elements include a first sensor 143 and a second sensor 144 disposed in a vertical direction. The first sensor 143 is used to monitor a position of the mounting table 12 in the stroke at a high position, and the second sensor 144 is used to monitor a position of the mounting table 12 in the stroke at a low position. For example, and without limitation, the first sensor 143 monitors the end position of the mounting table 12 during the upward travel and the second sensor 144 monitors the end position of the mounting table 12 during the downward travel. When the first sensor 143 or the second sensor 144 senses that the mounting table 12 has reached its corresponding end position, the motor 111 may be deactivated to prevent the mounting table 12 from moving further.

The first sensor 143 and the second sensor 144 each employ a photosensor having an emitting end 145 that emits light and a receiving end 146 that is disposed opposite the emitting end 145 and receives light from the emitting end 145. As can be seen, the sensing object 140 is a multi-folded plate, one end of which is fixed on the second mounting plate 16, and the other end of which is provided with a light blocking member, such as a protrusion 141 shown in the figure, and the protrusion 141 moves between the first sensor 143 and the second sensor 144 as the mounting table 12 moves up and down. When the protrusion 141 is located between the emitting end 145 and the receiving end 146 of any one of the sensors, the receiving end 146 cannot receive light from the opposite emitting end 145 due to the shielding of the protrusion 141, and thus senses that the sensing object 140 has moved to the position of the sensor, and thus obtains information that the mounting table 12 has moved to the stroke end position. The guide 13 can guide both the mounting table 12 and the sensing object 140 to move in the vertical direction, thereby improving the sensing accuracy of the sensor. It can be seen that a contact 142 located near the protrusion 141 is also provided on the sensing object 140, and the contact 142 can abut against the emitting end 145 of any one sensor when the sensing object 140 moves to the sensor, thereby further ensuring that the sensing object 140 moves along a desired moving path.

In the above embodiment, the sensor device 14 is configured such that, when the projection 141 blocks the first sensor 143, the receiving end 146 of the first sensor 143 does not receive the light signal, thereby sensing that the mount table 12 has moved to the end position of the ascending stroke; when the projection 141 shields the second sensor 144, the receiving end 146 of the second sensor 144 does not receive the light signal, thereby sensing that the mounting stage 12 has moved to the end position of the descending stroke. The sensor device 14 may also have other forms to sense the position of the mounting table 12 during the stroke. For example, but not by way of limitation, the sensing element may take the form of other sensors, such as a touch sensor, a pressure sensitive sensor, and the like. For another example, the emitting end of the photosensitive sensor is disposed on the protrusion, and the two receiving ends 146 of the first sensor and the second sensor are still disposed as shown in the figure, and when the protrusion moves up and down between the two receiving ends, the receiving ends cannot receive the light signal; when the projection moves to the opposite side of any one of the receiving ends, the receiving end receives the light signal, thereby obtaining the information that the mounting table has moved to the stroke end position. The contact pieces can also be arranged to abut against other part surfaces which can restrict the moving direction of the sensing object.

When the first sensor 142 and the second sensor 144 sense the position information of the associated mount 12, the electric drive 11 receives an instruction to stop outputting power. The first sensor 143 and the second sensor 144 may transmit the position information to a controller on the battery rack, and the controller controls the start and stop of the electric driving device 11, or the first sensor 143 and the second sensor 144 may directly transmit the position information to the motor 111 of the electric driving device.

Fig. 4 is a schematic view of a plugging mechanism for electrical connection, and fig. 5 is an exploded view of the plugging mechanism in fig. 4. The electric drive 11, the guide 13 and the sensor 14 of the plug-in mechanism are in principle identical to the plug-in mechanism of fig. 2 to 3 and are not described in detail here. Because of the large size of the mounting table 12, there are two sets of guides 13, one on each side of the electric drive 11. The slider 132 of the guide is directly connected to the mounting table 12. The sensor means 14 are arranged on one of the sets of guiding means 13. The mounting table 12 includes a deck 123. The plate 123 is centrally provided with a large aperture for engaging an electrical socket 41. The operation principle of the plugging mechanism is basically the same as that of the plugging mechanism for cooling, the electric driving device 11 drives the mounting table 12 to move downwards, and when the second sensor 144 senses that the sensing object 140 reaches the second sensor 144, the electric driving device 11 instructs the mounting table 12 to stop descending; the electric drive 11 drives the mounting table 12 to move upward, and when the first sensor 143 senses that the sensing object 140 reaches the first sensor 143, the electric drive 11 instructs the mounting table 12 to stop rising.

Returning to fig. 1, two plugging mechanisms 1 may be provided in the battery holder 100 to respectively drive the

respective sockets

31,41 to ascend and descend. Two sockets can be driven to lift simultaneously through one plugging mechanism. For example and without limitation, the lower deck 122 of the mounting station of fig. 2 and only one deck 123 of the mounting station of fig. 4 are integrated into a third mounting plate, which, although not shown, is conceivably driven up or down by an electric drive. Furthermore, a plurality of guides 13 can be provided on the first mounting plate 15, of which at least one guide is used for the cooling-cycle socket 31 and the remaining guides are used for the electrical connection sockets 41. The sensor device 14 is connected to a guide. In this way, when it is necessary to establish the cooling circulation circuit and the electrical connection, the receptacle 31 for cooling circulation and the receptacle 41 for electrical connection can be simultaneously lowered to perform receptacle-plug connection in synchronization. When disconnection is required, both

sockets

31,41 may be raised simultaneously.

As shown in fig. 6 to 8, the battery holder according to another embodiment of the present invention includes a charging holder 61 having a plurality of charging compartments, and a water cooling tank 64, each charging holder 61 having therein a charging connector assembly 62, a water cooling connector assembly 63, and an inductor 65, the charging connector assembly 62 including a charging electric push rod 621 mounted on the charging holder 61, a charging seat plate 622 driven by the charging electric push rod 622, and a charging connector 623 fixed on the charging seat plate 622, the water cooling connector assembly 63 including a water cooling electric push rod 631 mounted on the charging holder 61, the water cooling device comprises a water cooling base plate 632 driven by a water cooling electric push rod 632, a first floating plate 633 arranged on the water cooling base plate 632 in a floating mode, a second floating plate 634 arranged on the first floating plate 633 in a floating mode, and water cooling joints 635 fixed on the second floating plate 634, wherein each water cooling joint 635 comprises a water inlet and a water outlet connected with the water cooling tank 64. The working process of the charging mechanism is as follows: the storage battery 66 is transferred into the charging bin through the battery changing device; after the sensor 65 in the charging bin detects that the storage battery 66 is in position, the charging electric push rod 621 drives the charging connector 623 to descend and insert into the battery charging connector 661, and meanwhile, the water-cooling electric push rod 631 drives the water-cooling connector 635 to insert into the battery water-cooling connector 662; while the charging connector 623 charges the storage battery 66, the water cooling tank 64 circulates cooling water in the shell of the storage battery 66, so that the storage battery 66 is prevented from being overheated due to quick charging; after the charging is completed, the water-cooled connector 635 and the charging connector 623 retract, and the fully charged storage battery 66 can be mounted on the electric automobile which is short of electricity. The charging connector assembly 62 is a rigid lifting mechanism, and because the water-cooling connector assembly 63 is internally provided with two floating mechanisms, the water-cooling connector assembly can adapt to the angle deviation between the charging connectors 661 to a large extent, so that the two connectors cannot be blocked in the plugging and unplugging process.

As shown in fig. 8, the inductor 65 is located between the charging connector assembly 62 and the water-cooled connector assembly 63. The sensing result of the storage battery 66 is accurate.

As shown in fig. 8, the charging connector assembly 62 includes a pair of vertical rails 624 mounted on the charging rack 61, and the vertical rails 624 are used for guiding the charging seat 622 to vertically ascend and descend. The vertical guide rail 624 can prevent the storage battery 66 from generating moment to damage the charging electric push rod 621 when the charging connector 623 is pulled out.

It should be understood that for the socket unit containing the charging connector assembly and the water-cooling connector assembly, one set of the assemblies comprises an electric push rod and a mounting table for fixing the corresponding connector, the other set of the assemblies comprises an electric push rod and a mounting table for arranging an anti-blocking mechanism, the anti-blocking mechanism comprises two floating plates, the electric push rod is connected with a base plate of the mounting table, and the connector is connected with one floating plate. Therefore, the anti-blocking mechanism can be arranged on the water-cooling joint assembly and also can be arranged on the charging joint assembly. The anti-seize mechanism may also be used on the plugging mechanism shown in fig. 2-3, for example and without limitation, the upper plate 121 shown in the figures is replaced by a first floating plate and a second floating plate, and the cooling socket 31 is instead connected to the second floating plate. Also, the sensor devices shown in fig. 2-3 may be used with the plugging mechanism shown in fig. 8, such as, but not limited to, the sensor devices provided on the charging interface assembly of fig. 8 to better control the connection of the receptacle to the plug on the battery pack.

While specific embodiments of the present application have been shown and described in detail to illustrate the principles of the application, it will be understood that the application may be embodied otherwise without departing from such principles.

Claims

1. A plugging mechanism for a connector, comprising:

an electric drive device (11),

a mounting table (12) to which the connector is fixed, the mounting table (12) being configured to be connected with an output end of the electric drive device (11) such that the mounting table (12) moves by a stroke under the drive of the electric drive device (11),

a sensor device (14), the sensor device (14) being configured to sense at least one position of the mounting table (12) in the stroke, and the electric drive device (11) receiving position information of the mounting table (12).

2. The plugging mechanism according to claim 1, wherein: the sensor device (14) comprises a sensing element and a sensing object, one of which is arranged on a first mounting plate (15) with the electric drive (11) and the other of which is configured to move with the mounting table (12); the sensing element obtains the position information of the mount table by sensing the sensing object.

3. The plugging mechanism according to claim 2, wherein: the mounting table (12) moves in a vertical direction.

4. The plugging mechanism according to claim 3, wherein: the sensing element comprises a first sensor (143) and a second sensor (144) arranged in a vertical direction, the first sensor (143) is used for sensing a first position of the mounting table (12) at a high position in the stroke, and the second sensor (144) is used for sensing a second position of the mounting table at a low position in the stroke.

5. The plugging mechanism according to claim 4, wherein: the first sensor (143) and the second sensor (144) are photosensitive sensors, and the sensing object (140) is configured to have a protrusion (141) capable of blocking light emitted from the photosensitive sensors.

6. The plugging mechanism according to claim 3, wherein: the sensing element is fixed to the first mounting plate (15), and the sensing object is fixed to the mounting table (12) via a second mounting plate (16) or directly to the mounting table (12).

7. The plugging mechanism according to claim 3, wherein: further comprising at least one guiding device (13), the mounting table (12) being fixed to the at least one guiding device (13) such that during movement of the mounting table (12) the at least one guiding device (13) guides the sensing object to move in a vertical direction.

8. The plugging mechanism according to claim 7, wherein: the at least one guide means (13) comprises a post (131) fixed on the first mounting plate (15) and a slider (132) moving with respect to the post (131).

9. The plugging mechanism according to claim 8, wherein: the slider (132) has a dovetail groove (133), and the post (131) is fitted with the dovetail groove (133).

10. The plugging mechanism according to any one of claims 1-9, wherein: the output end of the electric driving device (11) is an electrically driven push rod (112), and the tail end (114) of the push rod is fixed on the mounting table through a support (113).

11. The plugging mechanism according to claim 10, wherein: the electrically driven ram (112) is an electric ram standard.

12. A jack unit comprising a plugging mechanism according to any one of claims 1 to 11, wherein a mounting stage of said plugging mechanism has a third mounting plate to which a first jack for electrical connection and a second jack for cooling circulation are mounted, respectively.

13. A jack unit comprising at least two plug mechanisms according to any one of claims 1-11, wherein one of said plug mechanisms mounts a first jack for electrical connection; the other of the plugging mechanisms is provided with a second socket for cooling circulation.

14. A battery holder for storing a battery pack, said battery holder having a receptacle unit according to any one of claims 12 to 13 for connection to a plug unit on said battery pack.

15. A plugging mechanism for a connector, comprising:

an electric drive device is arranged on the frame,

a mounting table to which the connector is secured, the mounting table configured to be coupled to an output of the electric drive such that the mounting table moves a stroke under the drive of the electric drive.

16. The plugging mechanism of claim 15, wherein: the mounting table comprises a seat plate and an anti-blocking mechanism, the seat plate is driven by the electric driving device, the anti-blocking mechanism comprises a first floating plate and a second floating plate, the first floating plate is installed on the seat plate in a floating mode, the second floating plate is installed on the first floating plate in a floating mode, and the connector is fixed on the second floating plate.

17. A socket unit comprising a charging connector assembly, a water-cooled connector assembly and an inductor, wherein one of the charging connector assembly and the water-cooled connector assembly is the plugging mechanism according to any one of claims 15-16.

18. The utility model provides a battery frame, includes charging frame and the water-cooling tank that has a plurality of storehouses that charge, characterized by: a receptacle unit according to claim 17 is provided in each charging rack.