WO2023098859A1

WO2023098859A1 - Connector anti-retreating assembly, connecting apparatus, battery rack, and battery swapping station or energy storage station

Info

Publication number: WO2023098859A1
Application number: PCT/CN2022/136134
Authority: WO
Inventors: 张建平; 顾明月; 朱明厚; 庄智敏
Original assignee: 奥动新能源汽车科技有限公司; 上海电巴新能源科技有限公司
Priority date: 2021-12-02
Filing date: 2022-12-02
Publication date: 2023-06-08
Also published as: CN115837858A

Abstract

The present application provides a connector anti-retreating assembly, a connecting apparatus, a battery rack, and a battery swapping station or an energy storage station. The anti-retreating assembly comprises a first swing rod, a second swing rod, and a driving mechanism; the first swing rod is rotatably connected to the second swing rod; the non-connecting end of the first swing rod is rotatably arranged at a relative fixing position; the non-connecting end of the second swing rod is connected to a connector; the driving mechanism drives the connecting point of the first swing rod and the second swing rod to move along a first direction, so as to drive, in a linkage mode, the connector to move in a direction close to a battery; the movement route of the connecting point comprises a dead point position; and when the connecting point reaches or exceeds the dead point position, the connector is located at a position where the connector is connected to the battery, wherein the dead point position is the collinear position of the first swing rod and the second swing rod. Therefore, the connector can be self-locked by means of the dead point position without retreating, and the driving mechanism can keep the connector to be connected with the battery without continuously applying a force, thereby reducing the loss of the driving mechanism, and prolonging the overall service life.

Description

Connector anti-retraction components, connection devices, battery racks, and power exchange stations or energy storage stations

This application claims the priority of the Chinese patent application 2021114634267 with the filing date of 2021/12/2. This application cites the full text of the above-mentioned Chinese patent application.

technical field

The present application relates to the field of battery swapping, and in particular to a connector anti-retraction component, a connecting device, a battery rack, and a swapping station or an energy storage station.

Background technique

Today, with the gradual popularity of new energy vehicles, battery swapping technology provides a solution to the battery life problem of electric vehicles. The existing battery swapping technology is centered on the battery rack used to charge the battery. When in use, the battery is moved into the battery rack, and the connector driving component drives the connector to connect with the battery to charge the battery. The connector drive assembly consists of a drive mechanism and a transmission mechanism connected to the drive mechanism.

However, the existing connector driver components have the following defects:

When the existing connector is subjected to external force, it is easy to retreat or shift, which will affect the connection with the battery. Therefore, in order to maintain a stable connection between the connector and the battery, a driving mechanism is required to continuously control the connector. Apply force. As a result, the working time and loss of the driving mechanism are increased, and the overall service life and reliability are reduced.

Contents of the invention

The technical problem to be solved in this application is to provide a connector anti-retraction component, a connection device, a battery rack, and a power exchange station or energy storage station in order to overcome the defect that the drive mechanism in the prior art requires continuous force application.

The application solves the above-mentioned technical problems through the following technical solutions:

An anti-retraction component of a connector, the connector is used to connect a battery, the anti-retraction component includes a first swing rod, a second swing rod and a driving mechanism, the first swing rod is rotationally connected to the second swing rod, and the non-connection of the first swing rod The end is rotatably arranged at a relatively fixed position, the non-connecting end of the second swing rod is connected with the connector, and the driving mechanism drives the connection point of the first swing rod and the second swing rod to move along the first direction, and the connector is driven to the Moving in the direction close to the battery, the moving path of the connection point includes a dead point position, when the connection point moves along the first direction to reach or exceed the dead point position, the connector is located at the connection position with the battery; wherein, the dead point position is the first pendulum The position collinear with the second pendulum.

In this solution, since the limit position is at or close to the dead point, the connector can maintain a stable position through the connecting rod at the limit position without retreating, and the drive mechanism can keep the connector without continuous force. Connecting with the battery reduces the loss of the driving mechanism, improves the overall service life, reduces energy consumption, and improves the reliability of the entire system.

Preferably, the movement path of the connection point includes a first limit position, when the connection point moves along the first direction to pass the dead point position and the angle between the first swing link and the second swing link reaches a preset angle, the connection The point reaches the first limit position, at this time, the connector is at the connection position with the battery.

In this solution, the first limit position exceeds the dead point position. When the connection point is at the first limit position, even when the connector is subjected to external force, the connection point can still be restricted by the dead point position, and the force on the connector is almost will not be transmitted to the drive mechanism, the drive mechanism can maintain the connection point in the first limit position only by virtue of its own internal friction without continuously applying force to the connection point, so the drive mechanism can drive the connection point to the first limit position. It is closed at the limit position, which reduces the loss of the driving mechanism and improves the reliability of the whole system.

Preferably, the preset angle ranges from 177° to 179°.

In this solution, the preset angle is close to 180°, which can not only ensure that the connection point can be restricted by the dead point position when the first limit position is at the first limit position, but also prevent the first limit position from being too far from the dead point position to cause the connector The power consumption of the drive mechanism increases when disconnected from the battery. Preferably, the anti-retraction component of the connector includes a first limit mechanism, and the first limit mechanism is placed on the movement path of at least one of the first swing bar, the second swing bar and the connection point, so as to limit the connection point to the first limit position.

In this solution, when the connection point moves to the first limit position, one of the first swing link, the second swing link and the connection point will abut against the first limit mechanism to realize the limit position.

Preferably, the drive mechanism drives the connection point between the first swing rod and the second swing rod to move along the second direction, and the connector is driven to move away from the battery in linkage, the moving path of the connection point includes the second limit position, and the connection point When the connector moves along the second direction and reaches the second limit position, the connector is at a position separated from the battery.

In this solution, by limiting the connection point to the second limit position, damage to the connecting rod due to excessive movement can be avoided, and it can also prevent the separation position of the connector from being too far away from the battery to reduce the power exchange efficiency.

Preferably, the connector anti-retraction assembly includes a second limit mechanism, and the second limit mechanism is placed on the movement path of at least one of the first swing bar, the second swing bar and the connection point, so as to limit the connection point to the second limit position.

In this solution, when the connection point moves to the second limit position, at least one of the first swing link, the second swing link and the connection point will abut against the second limit mechanism, thereby limiting the connection point to the second limit position Location.

Preferably, the driving mechanism includes a power source and a transmission rod, the power source drives the transmission rod to move, and the transmission rod is connected to the connection point between the first swing rod and the second swing rod.

In this solution, the transmission rod can drive the connection point to move under the drive of the power source.

Preferably, the first swing rod and the second swing rod are respectively provided with a first pin hole and a second pin hole, the transmission rod is provided with a connector, and the connector is provided with a third pin hole, the first pin hole, the second The second pin hole and the third pin hole are hinged to the connection point through the first pin shaft.

In this solution, the hinged fixing among the first swing link, the second swing link and the connecting head is realized.

Preferably, the power source is at least one of an air cylinder, a hydraulic cylinder or an electric motor.

Preferably, the moving direction of the transmission rod is parallel to the first direction.

In this solution, the transmission rod can drive the connection point to move along the first direction.

The present application also provides a connection device, including a connector, a bracket, and the above-mentioned connector anti-retraction assembly, the bracket is used for the fixed connection between the connection device and the battery rack on which the battery is placed, wherein the non-backward connection of the first swing bar The connecting end is rotatably connected with the bracket. The connection and fixation with the battery is realized through the connector.

Preferably, the bracket is also provided with a swing rod mounting frame, the non-connecting end of the first swing rod is provided with a fourth pin hole, the swing rod mounting frame is provided with a fifth pin hole, and the gap between the fourth pin hole and the fifth pin hole is The space is hinged by the second pin shaft.

In this solution, the rotational connection between the first swing link and the bracket is realized.

Preferably, the connector includes a mounting base and a connecting head, the connecting head is fixedly arranged on the mounting base, and the mounting base is rotatably connected to the second swing rod.

In this solution, the modularization of the connection device is realized by setting the mounting seat, which is beneficial to reduce production costs and improve compatibility and flexibility.

Preferably, the mounting base is also provided with a connecting frame, the non-connecting end of the second swing rod is provided with a sixth pin hole, the connecting frame is provided with a seventh pin hole, and the sixth pin hole and the seventh pin hole pass through the sixth pin hole. Three-pin hinge.

In this solution, the hinged connection between the mounting seat and the connecting frame is realized.

Preferably, the connection device further includes a guide assembly, the guide assembly includes a guide part and a matching part, the guide part is arranged on the bracket, the matching part is arranged on the mounting seat, and the guide part cooperates with the matching part to limit the moving direction of the connector.

In this solution, the connector can move along a predetermined moving direction through the restraint of the guide assembly, so that it can be docked with the battery more accurately.

Preferably, the guide part includes a guide rail, the matching part includes a slider, and the installation seat and the bracket are slidably connected to the slider through the guide rail.

In this solution, the sliding guide to the mounting seat is realized by sliding the slider on the guide rail.

Preferably, the connector is an electrical connector, one end of the electrical connector is used for electrical connection with the battery, and the other end is electrically connected with the power supply system through a power supply line.

In this solution, the battery can be charged through the electrical connector.

Preferably, the connecting device further includes a wire support plate, which is arranged on the mounting seat, and the wire support plate is used for carrying the power supply wire.

In this solution, the wire harness is accommodated by the wire support plate, which can make the wire management more neat and orderly, and prevent the power supply wire from moving or entangled during use and causing failure.

Preferably, the connector is a liquid-cooled connector, one end of the liquid-cooled connector is used for liquid-cooled connection with the battery, and the other end is connected to the cooling system through a liquid-cooled tube.

In this solution, the charging battery can be cooled through the liquid cooling connector.

Preferably, the liquid cooling pipe includes a liquid inlet pipe and a liquid outlet pipe, and the liquid cooling connector includes a liquid inlet connected to the liquid inlet pipe and a liquid outlet connected to the liquid outlet pipe; the cooling liquid passes through the liquid inlet pipe and the liquid inlet Enter the battery, and then return to the cooling system from the battery through the liquid outlet and the liquid outlet pipe.

In this solution, the cooling liquid enters the cooling circuit of the battery through the liquid inlet pipe to cool the battery, and the heated cooling liquid returns to the cooling system through the liquid outlet pipe, thereby taking out the heat in the battery.

Preferably, the connecting device further includes a pipe frame, which is arranged on the installation seat, and the pipe frame is used for fixing the liquid cooling pipe.

In this solution, the pipe rack can be used to constrain the cooling pipeline, make the pipeline routing more neat, and prevent the pipeline from moving or entangled during the operation of the connector, resulting in leakage, blockage and other faults.

The present application also provides a battery rack, which is characterized in that it includes a frame, a supporting plate, a bracket and the connection device as above, the supporting plate is used to carry the battery, the supporting plate is arranged on the frame, and the connecting device is fixed on the frame through the bracket .

In this solution, the battery rack is capable of charging batteries moved into the battery rack.

Preferably, the battery can move to the pallet along the third direction, and the connecting device is arranged on at least one side of the moving path of the battery.

In this solution, by disposing the electrical connector and the liquid cooling connector on both sides of the frame separately, the volume occupied by the battery rack in the direction of battery movement can be reduced, and the overall layout of the battery rack is more reasonable.

Preferably, the third direction is parallel to the first direction.

Setting the driving mechanism to move along the battery moving direction can reduce the volume occupied by the battery rack perpendicular to the battery moving direction when the driving mechanism moves.

Preferably, the connecting device includes a first connecting device whose connector is an electrical connector, and a second connecting device whose connector is a liquid-cooled connector, and the first connecting device and the second connecting device are respectively arranged on both sides of the battery moving path .

In this solution, the charging operation and the cooling operation can be performed on the battery at the same time.

Preferably, the battery rack includes multi-layer pallets, the multi-layer pallets are arranged along the fourth direction, and each layer of pallets should be provided with a connecting device.

In this solution, by setting a multi-layer frame, multiple batteries can be charged at the same time, and the efficiency is higher and the structure is more compact.

Preferably, the fourth direction is perpendicular to the first direction.

The present application also provides a power exchange station or an energy storage station, which is characterized in that it includes the battery rack as described in any one of the above items.

The positive progress effect of this application is:

Using the self-locking feature of the dead point of the connecting rod, the driver can keep the connector connected to the battery without continuous force, which reduces the loss of the driver, reduces energy consumption, improves the service life, and increases the reliability of the entire system .

Description of drawings

FIG. 1 is a schematic front view of a connector drive assembly in an embodiment of the present application;

FIG. 2 is a schematic perspective view of a connector driving assembly in an embodiment of the present application;

FIG. 3 is a schematic perspective view of a connector driving assembly in an embodiment of the present application;

4 is a schematic perspective view of an electrical connector in an embodiment of the present application;

FIG. 5 is a schematic perspective view of a liquid cooling connector in an embodiment of the present application;

FIG. 6 is a schematic perspective view of a battery rack in an embodiment of the present application;

Explanation of reference signs:

connector 20; mounting seat 21; connecting head 22; connecting frame 23; seventh pin hole 24; third pin shaft 25; battery rack 30; frame 31; supporting plate 32; drive mounting frame 33 ; Driving mechanism 100; Power source 110; Transmission rod 120; Third pin hole 121; First pin shaft 122; Second pin hole 221; sixth pin hole 222; movable point 230; first direction 240; second direction 250; first limit mechanism 260; limit bracket 261; limit bolt 262; second limit mechanism 270; connection Device 300; Bracket 310; Swing rod mounting frame 320; Fifth pin hole 321; Second pin shaft 322; Guide assembly 330; Guide rail 331; Slider 332; Electrical connector 400; Joint 410; 430; liquid cooling connector 500; pipe interface 510; liquid cooling pipe 520; pipe frame 530; first connecting device 600; second connecting device 700

Detailed ways

The present application will be further described below by means of examples, but the present application is not limited to the scope of the examples.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , there is an anti-retraction assembly 10 for a connector. The connector 20 is used for connecting a battery.

The first swing link 210 is rotatably connected to the second swing link 220 . The rotational connection between the first swing link 210 and the second swing link 220 may be realized in the form of a hinge or a pivot. What adopted in this application is the mode of hinged connection. Specifically, the non-connecting end (ie, the upper end) of the first swing rod 210 is rotatably arranged at a relatively fixed position, the non-connecting end (ie, the lower end) of the second swing rod 220 is connected with the connector 20 , and the first swing rod 220 is connected to the connector 20 . The connection end (ie the lower end) of the rod 210 and the connection end (ie the upper end) of the second swing rod 220 are hinged to each other, thereby constituting the connection point of the first swing rod 210 and the second swing rod 220 .

The driving mechanism 100 can drive the connecting point to move along the first direction 240 , so as to drive the connector 20 to move toward the battery in linkage. Specifically, the first direction 240 corresponds to the horizontal rightward direction in FIG. At this time, the distance between the non-connecting end (i.e. the lower end) of the second swinging rod 220 and the non-connecting end (i.e. the upper end) of the first swinging rod 210 gradually increases, and then the linkage drives the connector 20 to move downward, and it is connected to the 20 battery connection at the lower position.

The movement path of the connection point includes a dead point position, when the connection point moves along the first direction 240 to reach or exceed the dead point position, the connector 20 is located at the connection position with the battery; wherein, the dead point position is the first swing rod 210 The position collinear with the second swing link 220 is the position when the first swing link 210 and the second swing link 220 are kept vertical.

Since the limiting position is at or close to the dead point, the first swing link 210 and the second swing link 220 can be locked at the dead point to limit the retraction of the connector 20, and the drive mechanism 100 can be used without continuous force. The connector 20 remains connected to the battery, which reduces the loss of the driving mechanism 100, improves the overall service life, reduces energy consumption, and improves the reliability of the entire system.

In this embodiment, the moving path of the connection point includes the first limit position, when the connection point moves along the first direction 240 to pass the dead point position and the first swing rod 210 and the second swing rod 220 and the first swing rod When the included angle between 210 and the second swing bar 220 reaches a preset angle, the connection point reaches the first limit position, and at this time the connector 20 is at the connection position with the battery. By setting the first limit position on the movement path of the connection point beyond the range of the dead point position, when the connection point is at the first limit position, even when the connector is subjected to external force, the connection point can still be limited by the dead point position , the force of the connector 20 will hardly be transmitted to the drive mechanism 100, and the drive mechanism 100 can maintain the connection point at the first limit position only by virtue of its own internal friction without continuously applying force to the connection point. The first swing bar 210 and the second swing bar 220 are locked, thereby restricting the retraction of the connector 20 . The driving mechanism 100 can be closed when the connection point is driven to the first limit position, which reduces the loss of the driving mechanism 100 and improves the reliability of the whole system

In this embodiment, the range of the preset angle is preferably 177° to 179°.

At the same time, since the preset angle is close to 180°, it can ensure that the connection point can be restricted by the dead point position when the first limit position is at the first limit position, and it can also prevent the first limit position from being too far away from the dead point position, causing the connector 20 to be out of contact with the dead point position. The power consumption of the drive mechanism 100 increases when the battery is disconnected.

In this embodiment, the connector 20 anti-retraction assembly 10 further includes a first limit mechanism 260, and the first limit mechanism 260 is placed on at least one of the first swing bar 210, the second swing bar 220 and the connection point. on the moving path to limit the connection point to the first limit position. During operation, one of the first swing link 210 , the second swing link 220 and the connecting point is abutted against the first limiting mechanism 260 to stop, thereby making the connecting point limited to the first limiting position.

Specifically in this application, the first limiting mechanism 260 is located on the moving path of the first swing link 210 . When the first swing rod 210 swings, it can abut against the first limit mechanism 260 to stop, so that the connection point (ie, the connection end of the first swing rod 210 ) is stably limited to the first limit position.

In this embodiment, the driving mechanism 100 can also drive the connection point of the first swing link 210 and the second swing link 220 to move in a second direction 250 opposite to the first direction 240 , that is, to move horizontally to the left in the figure. The moving path of the connection point includes a second limit position, and when the connection point moves along the second direction 250 to reach the second limit position, the connector 20 is in a position separated from the battery. Specifically, when the connection point moves along the second direction 250, the angle between the first swing link 210 and the second swing link 220 becomes larger, and the non-connecting end (ie the lower end) of the second swing link 220 is connected to the first swing link 220. The distance between the fixed ends (ie, the upper ends) of the swing rod 210 decreases, thereby driving the connector 20 to move upward, that is, to move away from the battery, thereby realizing separation from the battery.

By limiting the connection point to the second limit position, damage to the driving mechanism 100 or the connecting rod due to excessive movement can be avoided, and it can also prevent the disconnection position of the connector 20 from being too far away from the battery to reduce the power exchange efficiency.

In this embodiment, the anti-retraction assembly 10 of the connector 20 further includes a second limit mechanism 270, and the second limit mechanism 270 is placed on at least one of the first swing bar 210, the second swing bar 220 and the connection point. on the moving path to limit the connection point to the second limit position. Specifically, the first limiting mechanism 260 is located on the moving path of the first swing link 210 . When the first swing rod 210 swings, it can abut against the first limit mechanism 260 to stop, so that the connection point (ie, the connection end of the first swing rod 210 ) is stably limited to the first limit position.

Specifically, in this application, the first limiting mechanism 260 and the second limiting mechanism 270 have basically the same or the same structure, and they both include a limiting bracket 261 installed at a relatively fixed position and screwed on the The limit bolt 262 on the limit bracket 261 is provided with a limit seat for abutting against the first swing link 210 at one end of the limit bolt 262 facing the first swing link 210 . With such a structure, the fine adjustment of the first limit position or the second limit position can be realized by turning the limit bolt 262 . Higher flexibility of use.

In other optional embodiments, the connection point can also be realized by setting a limiting member on the movable path of the second swing link 220, or by setting a rotation angle limiting structure at the non-connecting end of the first swing link 210, etc. The first limit position and the second limit position.

In this embodiment, the driving mechanism 100 includes a power source 110 and a transmission rod 120 , the power source 110 is used to drive the transmission rod 120 to move, and the movement direction of the transmission rod 120 is parallel to the first direction 240 . The transmission rod 120 is connected to the connecting point of the first swing rod 210 and the second swing rod 220 . During operation, the power source 110 drives the transmission rod 120 to move telescopically, and the transmission rod 120 acts on the connection point of the first swing rod 210 and the second swing rod 220 to bend the first swing rod 210 and the second swing rod 220 .

In this embodiment, the power source 110 can be at least one of an air cylinder, a hydraulic cylinder or an electric motor. When the power source 110 is a cylinder, the transmission rod 120 may be a piston rod that can expand and contract relative to the cylinder. When the power source 110 is a hydraulic cylinder, the transmission rod 120 may be a piston rod that can expand and contract relative to the cylinder barrel of the hydraulic cylinder. When the power source 110 is a motor, the transmission rod 120 may have a rack that meshes with the gear connected to the motor shaft, and the rotation of the motor is converted into the telescopic movement of the transmission rod 120 through the rack. Of course, the motor can also be a linear motor that directly drives the transmission rod 120 to move forward and backward.

In this embodiment, a first pin hole 211 is defined on the connection end of the first swing rod 210 (ie, the lower end of the first swing rod 210 ). A second pin hole 221 is defined on the connecting end of the second swing rod 220 (ie, the upper end of the second swing rod 220 ). The end of the transmission rod 120 is provided with a mounting joint, and a third pin hole 121 is opened on the mounting joint. The first pin hole 211 , the second pin hole 221 and the third pin hole 121 are hinged at the connection point through the first pin shaft 122 . Thus, the hinged fixing among the first swing link 210 , the second swing link 220 and the transmission link 120 is realized.

With reference to FIG. 4 and FIG. 5 , the present application also provides a connection device 300 , including a connector 20 , a bracket 310 and the connector 20 anti-retraction assembly 10 as above.

The bracket 310 may include a vertical plate hollowed out in the middle, with bolts fixedly connected to the battery rack 30 for placing batteries at its four corners, and fixedly connected to the battery rack 30 through the bolts. The anti-retraction assembly 10 of the connector 20 is arranged on one side of the bracket 310, and the connector 20 is correspondingly arranged on the other side of the bracket 310, and is connected to the second swing rod 220 through a connecting piece passing through a gap in the middle of the bracket 310. The connection ends meet.

In this embodiment, a swing rod installation frame 320 is provided on the vertical plate of the bracket 310 for placing the connector 20 on one side of the anti-backward assembly 10, and the non-connecting end (ie, the upper end) of the first swing rod 210 also has a fourth pin. hole 212, the fifth pin hole 321 is opened on the swing rod mounting bracket 320, and the fourth pin hole 212 and the fifth pin hole 321 are connected by the second pin shaft 322, thereby realizing the first swing rod 210 and the bracket Rotation connection between 310.

In this embodiment, the connector 20 includes a mounting base 21 and a connecting head 22 , the connecting head 22 is fixedly disposed on the mounting base 21 , and the mounting base 21 is rotatably connected to the second swing rod 220 . The modularization of the connection device 300 is achieved by providing the mounting base 21 , which is beneficial to reduce production costs and improve compatibility and flexibility.

Specifically, the mounting base 21 is also provided with a connecting frame 23, the non-connecting end of the second swing bar 220 is provided with a sixth pin hole 222, and the connecting frame 23 is provided with a seventh pin hole 24, and the sixth pin hole 222 is connected to the sixth pin hole 222. The seven pin holes 24 are hinged by a third pin shaft 25 . Thereby, the hinged connection between the second swing link 220 and the connector 20 is realized.

In this embodiment, in this embodiment, the connection device 300 further includes a guide assembly 330, the guide assembly 330 includes a guide portion and a matching portion, the guide portion is arranged on the bracket 310 corresponding to one side of the connector 20, the guide portion The matching portion is disposed on the mounting base 21 , and the matching portion cooperates with the guiding portion to limit the moving direction of the connector 20 on the mounting base 21 . The moving direction of the connector 20 is constrained by the guide portion, so that the connector 20 can be docked with the battery more precisely.

Specifically, the guide part may include a guide rail 331 extending in the vertical direction, and the matching part may include a slide block 332 provided on the mounting base 21 corresponding to the guide rail 421 with a sliding groove, and the sliding groove is embedded in the guide rail 331 The sliding block 332 can slide along the guide rail 331 so as to realize the sliding guidance of the moving direction of the connector 20 . The number of guide rails 421 and sliders 422 can be determined according to actual needs, and in this embodiment, there are preferably two.

In this application, there are two types of connectors 22 , one of which is an electrical connector 400 , which includes a connector 410 and a power supply wire 420 , and the connector 410 is arranged downwards for connecting with a battery. The power supply line 420 passes through the opening in the middle of the bracket 310 and extends horizontally outward to be electrically connected to the power supply system of the switching station or energy storage station.

During operation, the electrical connector 400 is lifted and lowered vertically under the constraints of the guide assembly 330 . When the electrical connector 400 is lowered to the corresponding connection point and is at the first limit position, the electrical connector 500 is located at the position where it is connected to the battery. When the electrical connector 400 is raised to the position where the corresponding connection point is in the second limit position, it is separated from the battery. In this way, the battery can be charged through the electrical connector 400 .

In this embodiment, the connection device 300 further includes a wire support plate 430 disposed on the mounting base 21 and extending horizontally toward a direction away from the mounting base 21 through the opening on the bracket 310 . The two sides of the wire support plate 430 are provided with baffle plates. The line support plate 430 is used to carry the power supply line 420. When in use, the power supply line 420 can be tied to the line support plate 430 with a wire tie, or the power supply line can be fixed only through the restraint of the baffle without using a tie belt. 420 constraints.

Restraining the power supply line 420 by the line support plate 430 can make the wiring more tidy, which is convenient for subsequent maintenance and repair, and can also prevent the power supply line 420 from moving or being entangled when the connector 20 is running and causing failure.

In this application, another connector 22 is a liquid-cooled connector 500 , which includes a tube interface 510 and a liquid-cooled tube 520 , and the tube interface 510 is arranged downward for connecting to a battery. The liquid cooling tube 520 passes through the opening in the middle of the bracket 310 and extends horizontally outward to connect with the cooling system. When the liquid-cooling connector 500 is lowered to the corresponding connection point and is at the first limit position, the liquid-cooling connector 600 is located at a position connected to the battery. When the liquid cooling connector 500 is raised until the corresponding connection point is at the second limit position, the liquid cooling connector 600 is located at a position separated from the battery. Thus, the battery being charged can be cooled by the liquid cooling connector 500 .

The liquid cooling pipe 520 includes a liquid inlet pipe and a liquid outlet pipe, and the pipe interface 510 includes a liquid inlet connected to the liquid inlet pipe and a liquid outlet connected to the liquid outlet pipe. When the pipe interface 510 is connected to the battery, the cooling liquid of the cooling system enters the cooling circuit in the battery through the liquid inlet pipe. After flowing through the cooling circuit, the heated cooling liquid flows through the liquid outlet and the liquid outlet pipe back to the cooling system. Thus, the heat of the battery is carried out through the coolant. Reduce the temperature of the battery while it is charging.

In this embodiment, the liquid cooling connector 500 also includes a pipe bracket 530, the pipe bracket 530 is arranged on the mounting base 21, the pipe interface 510 and the liquid cooling tube 520 are passed through the mounting base 21, the pipe bracket 530 and the installation Elastic floating connection between seats 21. In this way, it is avoided that the tube interface 510 is damaged due to the impact generated when the battery is connected. In addition, the pipe rack 530 can also be used to restrain the liquid-cooled pipe 520 to make the pipe line more tidy and prevent the pipe from moving or entangled during the operation of the connector 20 to cause liquid leakage, blockage and other faults.

As shown in FIG. 6, the present application also provides a battery rack 30, which includes a cubic frame 31 and a supporting plate 32 arranged on the frame 31. The connecting device 300 is fixed to the side of the frame 31 through a bracket 310, and makes The connecting head 22 of the connecting device 300 is correspondingly located on the upper side of the supporting plate 32 .

The supporting plate 32 is used to carry the battery. When in use, the battery is placed on the supporting plate 32, and the connector 22 is correspondingly located at the upper connection portion of the battery. In this embodiment, when the battery is on the supporting plate 32 , its connecting portion is located on the upper surface of the battery, and the connecting head 22 can be connected and separated from the battery through lifting. The batteries moved into the battery rack 30 are thus charged and cooled.

In this embodiment, the battery can be moved to the pallet 32 in a third direction through the battery transfer equipment in the battery swapping station or energy storage station in a pulling and sliding manner. The third direction is parallel to the moving direction of the driving mechanism 100 in the connecting device 300 (ie, the first direction 240 ).

By arranging the running direction of the drive mechanism 100 to be consistent with the direction of battery movement, the lateral space requirements during the movement of the drive mechanism 100 can be reduced, and the battery rack 30 takes up less volume in a direction perpendicular to the battery movement direction than the existing structure. , thereby reducing the overall width of the battery rack 30 .

In this embodiment, the connection device 300 includes a first connection device 600 in which the connector 22 is an electrical connector 400 and a second connection device in which the connector 22 is a liquid cooling connector 500 . 700, the first connecting device 600 and the second connecting device 300 are respectively arranged on two sides of the battery moving path. Specifically. The first connection device 600 and the second connection device 300 are respectively fixed on the frame 31 and correspondingly located above one side of the support plate 32, and the electrical connector 400 of the first connection device 600 and the second connection device 300 The liquid cooling connection head 500 is divided into a position corresponding to the upper part of the battery on the supporting plate 32 .

During operation, the electrical connector 400 and the liquid-cooled connector 500 are lowered vertically to connect to the battery respectively, charge and cool the battery. The electric connector 400 and the liquid-cooled connector 500 are arranged to be raised and lowered in the vertical direction, first of all, the space occupied by the connector 20 in the horizontal direction can be reduced. Further, the volume of the battery rack 30 is reduced. Secondly, it can also prevent the electric connector 400 or the liquid-cooled connector 500 from impacting the battery during connection, causing the position of the battery to change. Improve the running accuracy and reduce the probability of docking failure.

In the present application, the supporting plate 32 is elongated, located on both sides of the inner surface of the frame 31 , and extended along the fourth direction. The fourth direction is parallel to the first direction 240 (ie, the moving direction of the battery or the running direction of the driving mechanism 100 ). Thereby, the overall weight of the battery rack 30 can be reduced on the premise of achieving placement of the battery.

In order to enable the battery rack 30 to charge a plurality of batteries, preferably in this embodiment, the battery rack 30 includes multi-layer pallets 32 arranged one above the other, and each layer of pallets 32 is correspondingly provided with the connection A device 300, a plurality of connecting devices 300 are vertically spaced apart.

By arranging the multi-layer pallet 32, multiple batteries can be charged at the same time, and the effect is higher and the structure is more compact.

In order to better fix the driving mechanism 100 of the connection device 300 , the battery stand 30 further includes a driving mounting bracket 33 , which is vertically arranged in a long strip shape and connected and fixed to the frame 31 . The driving mounting frame 33 is connected with the non-moving end of the driving mechanism 100, that is, the cylinder end of the hydraulic cylinder or air cylinder.

The present application also provides a power exchange station or energy storage station, including the battery rack 30 as described above. By using the above-mentioned battery holder 30, the connector can be kept in a stable position when it is connected to the battery without retreating, and the drive mechanism can keep the connector connected to the battery without continuous application of force, which reduces the loss of the drive mechanism. The overall service life is improved, energy consumption is reduced, and the reliability of the power station or energy storage station is improved.

Although the specific implementations of the present application have been described above, those skilled in the art should understand that these are only examples, and various changes or modifications can be made to these implementations without departing from the principle and essence of the application. Revise. Accordingly, the protection scope of the application is defined by the appended claims.

Claims

An anti-retraction assembly for a connector, the connector is used to connect a battery, characterized in that: the anti-retraction assembly includes a first swing bar, a second swing bar and a driving mechanism, the first swing bar and the second The swing rod is rotatably connected, the non-connecting end of the first swing rod is rotatably arranged at a relatively fixed position, the non-connecting end of the second swing rod is connected with the connector, and the driving mechanism drives the first swing rod The connection point with the second swing rod moves along the first direction to drive the connector to move in a direction close to the battery. The moving path of the connection point includes a dead point position, and the connection point moves along the first direction When the movement reaches or exceeds the dead point position, the connector is located at the connection position with the battery; wherein, the dead point position is a position where the first swing link and the second swing link are collinear.
The anti-retraction component of the connector according to claim 1, wherein the moving path of the connecting point includes a first limit position, when the connecting point moves along the first direction to pass the dead point and the second When the included angle between a swing rod and the second swing rod reaches a preset angle, the connection point reaches the first limit position, and at this time, the connector is located at the connection position with the battery.
The anti-retraction assembly of the connector according to claim 2, characterized in that: the preset angle ranges from 177° to 179°;

And/or, the connector anti-retraction assembly includes a first limit mechanism, and the first limit mechanism regulates the movement of at least one of the first swing bar, the second swing bar, and the connection point. on the path, so as to limit the connecting point to the first limiting position.
The connector anti-retraction assembly according to any one of claims 1-3, wherein the driving mechanism drives the connection point of the first swing bar and the second swing bar to move along the second direction, so as to drive the The connector moves away from the battery, and the moving path of the connection point includes a second limit position. When the connection point moves along the second direction and reaches the second limit position, the connector is located at the distance between the battery and the battery. separation position;

Preferably, the connector anti-retraction assembly includes a second limit mechanism, and the second limit mechanism is placed on the movement path of at least one of the first swing bar, the second swing bar and the connection point to limit the connection point to the second limit position.
The connector anti-retraction assembly according to any one of claims 1-4, wherein the drive mechanism includes a power source and a transmission rod, the power source drives the transmission rod to move, and the transmission rod is connected to The connection point between the first swing rod and the second swing rod.
The connector anti-retraction assembly according to claim 5, characterized in that: the first swing rod and the second swing rod are respectively provided with a first pin hole and a second pin hole, and the transmission rod is provided with There is a connecting head, and a third pin hole is opened on the connecting head, and the first pin hole, the second pin hole and the third pin hole are hinged to the connection point through a first pin shaft;

And/or, the power source is at least one of an air cylinder, a hydraulic cylinder or an electric motor;

And/or, the moving direction of the transmission rod is parallel to the first direction.
A connection device, characterized in that it includes a connector, a bracket and the connector anti-retreat assembly according to any one of claims 1 to 6, the bracket is used between the connection device and the battery rack for placing the battery fixed connection between them, wherein, the non-connecting end of the first swing rod is rotatably connected with the bracket.
The connecting device according to claim 7, characterized in that: the bracket is also provided with a swing rod mounting frame, the non-connecting end of the first swing rod is provided with a fourth pin hole, and the swing rod mounting frame A fifth pin hole is opened, and the fourth pin hole is hinged to the fifth pin hole through a second pin shaft.
The connecting device according to claim 7 or 8, characterized in that: the connector includes a mounting base and a connecting head, the connecting head is fixedly arranged on the mounting base, and the mounting base and the second pendulum Rod swivel connection.
The connecting device according to claim 9, characterized in that: the mounting seat is also provided with a connecting frame, the non-connecting end of the second swing rod is provided with a sixth pin hole, and the connecting frame is provided with a sixth pin hole. Seven pin holes, the sixth pin hole and the seventh pin hole are hinged by a third pin shaft.
The connection device according to claim 9 or 10, characterized in that: the connection device also includes a guide assembly, the guide assembly includes a guide part and a matching part, the guide part is arranged on the bracket, and the matching part The part is arranged on the mounting seat, and the guide part cooperates with the matching part to limit the moving direction of the connector;

Preferably, the guide part includes a guide rail, the matching part includes a slider, and the installation seat and the bracket are slidably connected to the slider through the guide rail.
The connection device according to any one of claims 9-11, characterized in that: the connector is an electrical connector, one end of the electrical connector is used for electrical connection with the battery, and the other end is connected to the power supply system through a power supply line. electrical connection;

Preferably, the connection device further includes a wire support plate, the wire support plate is arranged on the mounting base, and the wire support plate is used to carry the power supply wire.
The connection device according to any one of claims 9-12, wherein the connector is a liquid-cooled connector, one end of the liquid-cooled connector is used for liquid-cooled connection with the battery, and the other end is liquid-cooled The tubes are connected to the cooling system.
The connection device according to claim 13, wherein the liquid cooling pipe includes a liquid inlet pipe and a liquid outlet pipe, and the liquid cooling connector includes a liquid inlet connected to the liquid inlet pipe and a liquid inlet connected to the liquid cooling pipe. A liquid outlet connected to a liquid outlet pipe; cooling liquid enters the battery through the liquid inlet pipe and the liquid inlet, and then returns from the battery to the cooling system through the liquid outlet and the liquid outlet pipe;

And/or, the connecting device further includes a pipe bracket, the pipe bracket is arranged on the installation base, and the pipe bracket is used for fixing the liquid cooling tube.
A battery rack, characterized in that it includes a frame, a supporting plate, a bracket, and the connecting device according to claims 7 to 14, the supporting plate is used to carry batteries, the supporting plate is arranged on the frame, and the The connecting device is fixed on the frame through the bracket.
The battery rack according to claim 15, wherein the battery can move to the supporting plate along a third direction, and the connecting device is arranged on at least one side of the moving path of the battery.
The battery rack according to claim 16, wherein the third direction is parallel to the first direction.
The battery rack according to claim 16 or 17, wherein the connecting device comprises a first connecting device whose connector is an electrical connector, and a second connecting device whose connector is a liquid-cooled connector, and the first A connecting device and the second connecting device are respectively arranged on two sides of the moving path of the battery.
The battery rack according to any one of claims 15-18, characterized in that: the battery rack includes multiple layers of the supporting plates, and the multiple layers of the supporting plates are arranged along the fourth direction, and each layer of the supporting plates should provided with the connecting device;

Preferably, the fourth direction is perpendicular to the first direction.
A substation or energy storage station, characterized by comprising the battery rack according to any one of claims 15-19.