Electrical connection device and charging compartment with precise linkage mechanism

Abstract

The present invention discloses an electrical connection device and a charging compartment with a precise linkage mechanism. The electrical connection device includes a second connector, a linkage mechanism, and a driving mechanism. The second connector is used to be electrically connected to the first connector. The linkage mechanism includes a gear and a rack that mesh with each other. The gear is arranged in the charging compartment, and the rack is connected to the second connector. The driving mechanism is used to drive the gear to rotate, thereby driving the second connector to move in a direction close to or away from the first connector, so that the second connector is electrically connected or disconnected with the first connector. The electrical connection device drives the gear to rotate by utilizing the driving mechanism, so that the rotating gear drives the rack to move, and then the rack drives the second connector to move, thereby achieving electrical connection or disconnection of the second connector. The gear is meshed with the rack, which can accurately move the second connector to a preset position, can improve the accuracy of controlling the moving distance of the second connector, and improve the reliability of the electrical connection device.

Description

Technical Field

[0001] The invention relates to an electrical connection device and a charging compartment with a precise linkage mechanism. Background Art

[0002] Electric vehicle battery installation methods are generally divided into fixed and replaceable types. Fixed batteries are usually fixed to the vehicle and directly charged by the vehicle. Replaceable batteries are generally installed in a removable manner. The battery can be removed at any time and placed in a charging compartment for replacement or charging. After replacement or charging, it can be installed on the vehicle body.

[0003] Currently, battery packs are placed on a charging rack, and the electrical connection is achieved by relying on the weight of the battery pack to move the electrical connector downward. However, the distance the connector needs to move varies depending on the length of the battery pack. Therefore, to accommodate multiple battery pack models, the same charging pod cannot rely on the weight of the battery pack to move the electrical connector. Instead, the connector needs to be moved a distance tailored to the length of the battery pack.

[0004] In patent publication number CN105118952A, a first driver is positioned on the charging terminal, and a second driver is positioned on the battery. The first and second drivers engage through electromagnetic induction to control the movement of the charging terminal, thereby establishing electrical connection between the electrical connection portion and the battery. A reset member drives the first driver away from the second driver to disconnect the electrical connection portion from the battery. In this patent, the drivers need to avoid high and low voltage lines, and the cooperating drivers are positioned on the charging terminal and the battery, respectively. Combined with the diagram, to ensure smooth movement of the electrical connection device, a pair of drivers is positioned on either side of the charging terminal. These two pairs of drivers simultaneously drive the same charging terminal, which can easily lead to asynchrony. This can result in the electrical connection device being unable to move parallel to the battery, or the clamping force on one side being greater than the clamping force on the other side. Furthermore, because the first driver is bulky, it requires a considerable amount of space for installation and movement, significantly limiting its installation location. Furthermore, the movement distance of the first driver is difficult to accurately control, which can easily impact the second driver.

[0005] In the patent document with patent publication number CN208665012U, the contact between the conductive plate of the rail vehicle and the grounding plate is achieved by the coordinated movement of the gear rack, but the rack is set in the middle of a longer sliding bar, and the grounding plate is connected to the end of the rack, so the overall installation space is large.

[0006] In the patent document with patent publication number CN111251918A, it is disclosed that an electrical connection mechanism is driven by a push-pull mechanism to electrically connect with an electrical connector on a battery pack. The push-pull mechanism uses the gravity of the battery pack as the driving force, and the moving distance of the electrical connection mechanism is fixed, so it cannot be applied to battery packs of different lengths and models, and it occupies a high space. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to overcome the above-mentioned existing defects and provide an electrical connection device with a precise linkage mechanism and a charging compartment containing the same.

[0008] The present invention solves the above technical problems through the following technical solutions:

[0009] An electrical connection device is provided in a charging compartment, the charging compartment being used to carry and charge a battery pack, the battery pack having a first connector, and the electrical connection device comprising:

[0010] a second connector, the second connector being configured to be electrically connected to the first connector;

[0011] a linkage mechanism, the linkage mechanism comprising a gear and a rack that mesh with each other, the gear being disposed in the charging compartment, and the rack being connected to the second connector;

[0012] A driving mechanism is used to drive the gear to rotate, thereby driving the second connector to move in a direction close to or away from the first connector, so that the second connector is electrically connected to or disconnected from the first connector.

[0013] In this solution, a drive mechanism drives the gear to rotate, which in turn drives the rack, which in turn drives the second connector to move, thereby achieving electrical connection or disconnection of the second connector. The meshing of the gear and rack improves the synchronization of the overall movement of the second connector. Furthermore, by controlling the number of rotations of the gear, the second connector can be accurately moved to a preset position, improving the accuracy of controlling the second connector's movement distance and enhancing the reliability of the electrical connection device.

[0014] Preferably, the electrical connection device also includes a connector bearing surface, which is used to bear the second connector and the linkage mechanism, and the second connector moves along the connector bearing surface under the drive of the linkage mechanism, so that the second connector is electrically connected or disconnected with the first connector.

[0015] In this solution, the connector bearing surface provides a surface for mobile support for the second connector and the linkage mechanism. The second connector and the linkage mechanism move on the connector bearing surface, effectively avoiding the offset and dislocation phenomenon generated during the movement process, ensuring the electrical connection or disconnection between the second connector and the first connector, and improving safety and stability.

[0016] Preferably, the first side surface of the rack is a tooth surface; the second side surface of the rack contacts the bearing surface of the connector, the second side surface is opposite to the first side surface, and the gear is pressed onto the first side surface of the rack; and / or,

[0017] The gear is provided on the connector bearing surface, and the gear is provided outside the moving area of ​​the second connector; and / or,

[0018] The rotation center line of the gear is parallel or perpendicular to the connector bearing surface.

[0019] In this solution, a gear is pressed against the first side surface of the rack. The rotating gear drives the rack to slide smoothly across the connector's bearing surface, improving the stability and positioning accuracy of the second connector during movement. The gear is located outside the second connector's movement area, preventing it from interfering with the second connector's movement, thereby improving the safety and reliability of the electrical connection device.

[0020] Preferably, the second connector includes a fixed plate, a floating plate, at least one elastic member, and a plurality of poles, wherein the floating plate is movably mounted on a first side surface of the fixed plate via the elastic member, and the plurality of poles are mounted on the floating plate, wherein the poles have electrical contact ends and wiring terminals, wherein the electrical contact ends are configured to contact and electrically connect with the first connector, and the wiring terminals penetrate the fixed plate and are configured to connect with power cables;

[0021] The rack is connected to the fixing plate.

[0022] In this solution, the rack drives the fixed plate and, under the action of the driving mechanism, moves closer to or away from the first connector along a preset path, thereby achieving electrical connection or disconnection between the first connector and the second connector, which has the advantages of precise control and high stability.

[0023] Preferably, one end of the rack is connected to the fixing plate and is not exposed on the first side surface; the other end of the rack is exposed and connected to the second side surface of the fixing plate, and the second side surface is opposite to the first side surface.

[0024] In this solution, one end of the rack is connected to the fixing plate and is not exposed on the first side surface, thereby preventing the rack from obstructing the battery pack from entering the battery compartment, thereby improving the safety and reliability of the electrical connection device.

[0025] Preferably, the electrical connection device further includes at least one sliding guide mechanism, and the sliding guide mechanism is used to guide the second connector so that the second connector moves along a preset path in the charging compartment.

[0026] In this solution, the sliding guide mechanism ensures that the second connector can move along a preset path, thereby achieving precise electrical connection between the second connector and the first connector, and effectively avoiding the offset and dislocation of the second connector during movement, thereby greatly improving the safety and stability of the electrical connection device.

[0027] Preferably, the rack is connected to a middle position of the second connector, and there are two sliding guide mechanisms, which are arranged on both sides of the rack.

[0028] In this solution, the rack is arranged in the middle position of the second connector, and two sliding guide mechanisms are arranged on both sides of the rack, so that the force exerted by the rack on the second connector can be better transmitted to the entire second connector, avoiding excessive force on one end of the second connector, and enabling the second connector to dock with the first connector more smoothly, which can improve the synchronization of the second connector docking with the first connector.

[0029] Preferably, the sliding guide mechanism includes a matching slider and a slide rail; one of the slider or the slide rail is connected to the second connector, and the other of the slider or the slide rail is fixed in the charging compartment.

[0030] In this solution, the slider and the slide rail have a guiding and limiting function. One of the slider and the slide rail is connected to the second connector, and the other of the slider and the slide rail is fixedly set in the charging compartment. The second connector is ensured to move along the preset path through the relative movement of the slider and the slide rail. The structure is simple and the installation is very convenient.

[0031] Preferably, the electrical connection device also includes a rotating shaft and two shaft seats, the two shaft seats are arranged on both sides of the gear, bearings are provided on the shaft seats, both ends of the rotating shaft are passed through the two bearings, and the driving mechanism is connected to the gear through the rotating shaft.

[0032] In this solution, two bearing seats with bearings are arranged on both sides of the gear, so that the rotating shaft can be supported at both ends of the rotating shaft, so that the rotating shaft is more stable during rotation. Correspondingly, the rack movement will also be smoother, reducing speed fluctuations during movement.

[0033] Preferably, the axial direction of the rotating shaft is perpendicular to the moving direction of the second connector.

[0034] In this solution, the axial direction of the rotating shaft is perpendicular to the moving direction of the second connector, which can save space in the moving direction and improve the compactness of the electrical connection device.

[0035] A charging compartment comprises the electrical connection device as described above.

[0036] In this solution, the charging compartment utilizes a drive mechanism to rotate a gear, which in turn drives the rack, which in turn drives the second connector to connect or disconnect the second connector. The meshing of the gear and rack improves the synchronization of the second connector's overall movement. Furthermore, by controlling the number of rotations of the gear, the second connector can be accurately moved to a preset position, improving the precision of controlling the second connector's movement distance and enhancing the reliability of the electrical connection device.

[0037] Preferably, the charging compartment further includes:

[0038] Battery carrying surface, used to carry the battery pack;

[0039] A battery sensor, used to detect whether there is a battery pack on the battery supporting surface;

[0040] a telescopic sensor, configured to detect a telescopic position of the second connector;

[0041] A control unit is used to connect signals with the battery sensor, the telescopic sensor, and the driving mechanism.

[0042] In this solution, the movement of the second connector into position is precisely controlled through the battery sensor and the telescopic sensor, which makes it more convenient to use and effectively avoids the offset and dislocation of the second connector during movement, ensuring that the second connector moves an appropriate distance to achieve electrical connection or disconnection with the first connector, greatly improving the safety and stability of the charging compartment.

[0043] On the basis of conforming to the common sense in this field, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0044] The positive progress effect of the present invention is:

[0045] The electrical connection device of the present invention utilizes a drive mechanism to rotate a gear, thereby driving the rotating gear to move the rack, which in turn drives the second connector to move, thereby achieving electrical connection or disconnection of the second connector. The meshing of the gear and rack improves the synchronization of the overall movement of the second connector. Furthermore, by controlling the number of rotations of the gear, the second connector can be accurately moved to a preset position, improving the precision of controlling the movement distance of the second connector and enhancing the reliability of the electrical connection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a schematic structural diagram of a charging bin according to an embodiment of the present invention.

[0047] Figure 2 for Figure 1 A schematic diagram of a partial structure of an electrical connection device, showing the drive mechanism.

[0048] Figure 3 for Figure 1 Schematic diagram of the exploded structure of the second connector in .

[0049] Description of reference numerals:

[0050] Second connector 1

[0051] Fixed plate 11

[0052] Connection port 111

[0053] Limiting hole 112

[0054] First side surface 113

[0055] Second side surface 114

[0056] Floating plate 12

[0057] Limit column 121

[0058] Elastic member 13

[0059] Pole 14

[0060] Drive mechanism 2

[0061] Sliding guide mechanism 3

[0062] Slider 31

[0063] Slide rail 32

[0064] Connecting column 32

[0065] Linkage mechanism 4

[0066] Gear 41

[0067] Rack 42

[0068] Rotating shaft 43

[0069] Axle seat 44

[0070] Bearing 45

[0071] Battery carrying surface 51

[0072] Connector bearing surface 52 DETAILED DESCRIPTION

[0073] The present invention will be described more clearly and completely below by way of embodiments in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the following embodiments.

[0074] like Figure 1-Figure 3 As shown, this embodiment is an electrical connection device, which is arranged in a charging compartment. The charging compartment is used to carry a battery pack and charge the battery pack. The battery pack has a first connector. The electrical connection device includes a second connector 1, a linkage mechanism 4 and a drive mechanism 2. The second connector 1 is used to be electrically connected to the first connector; the linkage mechanism 4 includes a gear 41 and a rack 42 that are meshed with each other. The gear 41 is arranged in the charging compartment, and the rack 42 is connected to the second connector 1; the drive mechanism 2 is used to drive the gear 41 to rotate, thereby driving the second connector 1 to move in a direction close to or away from the first connector, so that the second connector 1 is electrically connected or disconnected with the first connector.

[0075] In this embodiment, the drive mechanism 2 drives the gear 41 to rotate, thereby causing the rotating gear 41 to move the rack 42, which in turn drives the second connector 1 to move, thereby achieving electrical connection or disconnection of the second connector 1. The meshing of the gear 41 and the rack 42 improves the synchronization of the overall movement of the second connector 1. Furthermore, by controlling the number of rotations of the gear 41, the second connector 1 can be accurately moved to a preset position, thereby improving the accuracy of controlling the movement distance of the second connector 1 and enhancing the reliability of the electrical connection device.

[0076] like Figure 2 As shown, the electrical connection device also includes a connector bearing surface 52, which is used to support the second connector 1 and the linkage mechanism 4. Driven by the linkage mechanism 4, the second connector 1 moves along the connector bearing surface 52 to electrically connect or disconnect the second connector 1 with the first connector. The connector bearing surface 52 provides a support surface for the movement of the second connector 1 and the linkage mechanism 4. By moving on the connector bearing surface 52, the second connector and the linkage mechanism 4 effectively avoid displacement and misalignment during movement, ensuring electrical connection or disconnection between the second connector and the first connector, and improving safety and stability.

[0077] exist Figure 2In the figure, the first side surface of the rack 42 is a tooth surface; the second side surface of the rack 42 is in contact with the connector bearing surface 52, the second side surface is opposite to the first side surface, and the gear 41 is pressed on the first side surface of the rack 42. The gear 41 is provided on the connector bearing surface 52, and the gear 41 is provided outside the moving area of ​​the second connector 1. The rotation center line of the gear 41 is parallel or perpendicular to the 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 smoothly on the connector bearing surface 52, which can improve the stability and position accuracy of the second connector 1 during movement. The gear 41 is provided outside the moving area of ​​the second connector 1, so that the gear 41 can avoid interfering with the movement of the second connector 1, which can improve the safety and reliability of the electrical connection device.

[0078] like Figure 2 and Figure 3 As shown, 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. The floating plate 12 is movably mounted on a first side surface 113 of the fixed plate 11 via the elastic member 13. The plurality of poles 14 are mounted on the floating plate 12. The poles 14 have electrical contact ends and wiring terminals. The electrical contact ends are used to contact and connect with the first connector to form an electrical connection, while the wiring terminals extend through the fixed plate 11 and are used to connect to a power cable. A rack 42 is connected to the fixed plate 11. The rack 42 drives the fixed plate 11 and, under the action of the drive mechanism 2, moves toward or away from the first connector along a predetermined path, thereby achieving electrical connection or disconnection between the first connector and the second connector 1. This provides the advantages of precise control and high stability.

[0079] exist Figure 2 In the embodiment, one end of the rack 42 is connected to the fixing plate 11 and is not exposed on the first side surface 113. The other end of the rack 42 is exposed and connected to the second side surface 114 of the fixing plate 11, with the second side surface 114 facing away from the first side surface 113. Since one end of the rack 42 is connected to the fixing plate 11 and is not exposed on the first side surface 113, the rack 42 does not obstruct the battery pack from entering the battery compartment, thereby improving the safety and reliability of the electrical connection device.

[0080] exist Figure 2 In the embodiment, the electrical connection device further includes a rotating shaft 43 and two shaft seats 44. The two shaft seats 44 are disposed on either side of the gear 41. Bearings 45 are provided on the shaft seats 44. The ends of the rotating shaft 43 pass through the two bearings 45. The drive mechanism 2 is connected to the gear 41 through the rotating shaft 43. The two bearing seats 44 with bearings 45 are disposed on either side of the gear 41, thereby supporting the rotating shaft 43 at both ends. This allows the rotating shaft 43 to rotate more smoothly, and accordingly, the rack 42 also moves more smoothly, reducing speed fluctuations during movement.

[0081] As a specific embodiment, the axial direction of the rotating 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, which can save space in the moving direction and improve the compactness of the electrical connection device.

[0082] exist Figure 2 The electrical connection device further includes at least one sliding guide mechanism 3, which is used to guide the second connector 1 so that the second connector 1 moves along a preset path within the charging compartment. The sliding guide mechanism 3 ensures that the second connector 1 can move along the preset path, achieving precise electrical connection between the second connector 1 and the first connector, and effectively prevents the second connector 1 from shifting or misaligning during movement, thereby greatly improving the safety and stability of the electrical connection device.

[0083] As a specific embodiment, the sliding guide mechanism 3 includes a matching slider 31 and a slide rail 32; one of the slider 31 or the slide rail 32 is connected to the second connector 1, and the other is fixed in the charging compartment. The slider 31 and the slide rail 32 serve as guides and limiters. One of the slider 31 and the slide rail 32 is connected to the second connector 1, and the other is fixed in the charging compartment. The relative movement of the slider 31 and the slide rail 32 ensures that the second connector 1 moves along a predetermined path. The structure is simple and installation is very convenient.

[0084] The rack 42 is connected to the middle of the second connector 1. There are two sliding guide mechanisms 3, one on each side of the rack 42. The rack 42 is located in the middle of the second connector 1, and the other two sliding guide mechanisms 3 are located on either side of the rack 42. This allows the force applied by the rack 42 to the second connector 1 to be better transmitted to the entire second connector 1, preventing excessive force on one end of the second connector 1. This allows the second connector 1 to dock more smoothly with the first connector, improving the synchronization of the docking between the second connector 1 and the first connector. In this embodiment, the "middle position" refers to an area near the middle, not the exact middle point.

[0085] Figure 3 The diagram shows the structure of the second connector 1. The second connector 1 includes a fixed plate 11, a floating plate 12, at least one elastic member 13, and multiple poles 14. The fixed plate 11 is connected to the drive mechanism 2. The bottom of the fixed plate 11 is a smooth surface, and the second connector 1 is slidably connected to the sliding surface via the smooth surface. The floating plate 12 is movably mounted on the first side surface of the fixed plate 11 via the elastic member 13. Multiple poles 14 are mounted on the floating plate 12. The poles 14 have electrical contact ends and wiring terminals. The electrical contact ends are used to contact and electrically connect with the first connector, while the wiring terminals extend through the fixed plate 11 and are used to connect to the power cable.

[0086] The floating plate 12 is movably connected to the fixed plate 11 via an elastic member 13, further stabilizing the electrical connection between the second connector 1 and the first connector. Furthermore, the second connector 1 is electrically connected to the first connector via a terminal 14. The terminal 14 extends through a through-hole provided in the fixed plate 11. This prevents the terminal 14 from contacting the fixed plate 11 during use, further enhancing the safety and stability of the electrical connection device with a sliding surface.

[0087] There are multiple elastic members 13, each symmetrically disposed at both ends of the floating plate 12 along its length. The multiple elastic members 13 are disposed at the left and right ends of the floating plate 12, while no elastic members 13 are disposed at the upper and lower ends. This effectively reduces the overall height of the electrical connection device with a sliding surface, resulting in a more compact structure and a smaller footprint.

[0088] The fixed plate 11 has two connection ports 111, into which multiple elastic members 13 are respectively disposed. The ends of the floating plate 12 extend into the connection ports 111 and connect to the elastic members 13. This effectively prevents the multiple elastic members 13 from occupying space and interfering with each other, resulting in a more compact and stable structure.

[0089] Several limiting posts 121 protrude from the side of the floating plate 12 facing the fixed plate 11. The fixed plate 11 has several limiting holes 112 formed in correspondence with the limiting posts 121. The diameter of these limiting holes 112 is larger than the outer diameter of the limiting posts 121. These limiting holes 112 fit over the limiting posts 121 and serve to limit the range of motion of the floating plate 12 relative to the fixed plate 11. By fitting these limiting holes 112 over the limiting posts 121, the range of motion of the floating plate 12 relative to the fixed plate 11 is restricted, effectively preventing damage to the floating plate 12 due to excessive displacement during movement, further enhancing the safety and stability of the electrical connection device with a sliding surface.

[0090] This embodiment can also be a charging compartment, which includes the above-mentioned electrical connection device. The charging compartment drives the gear 41 to rotate by utilizing the driving mechanism 2, so that the rotating gear 41 drives the rack 42 to move, and then 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 engaged with the rack 42, which improves the synchronization of the overall movement of the second connector 1. Moreover, by controlling the number of rotations of the gear 41, the second connector 1 can be accurately moved to a preset position, which can improve the accuracy of controlling the movement distance of the second connector 1 and improve the reliability of the electrical connection device.

[0091] As an embodiment, the charging compartment further includes a battery loading surface 51, a battery sensor, an expansion and contraction sensor, and a control unit. The battery loading surface 51 is used to hold a battery pack; the battery sensor is used to detect the presence of a battery pack on the battery loading surface 51; the expansion and contraction sensor is used to detect the extended and contracted position of the second connector 1; and the control unit is used to communicate signals with the battery sensor, the expansion and contraction sensor, and the drive mechanism 2 of the electrical connection device. The battery sensor and expansion and contraction sensor enable precise control of the movement of the second connector 1 into position, making it more convenient to use and significantly improving the safety and stability of the charging compartment.

[0092] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of the present invention.

Claims

1. An electrical connection device with a precise linkage mechanism, disposed in a charging compartment for carrying and charging a battery pack, wherein the battery pack has a first connector, characterized in that: The electrical connection device comprises: a second connector, the second connector being configured to be electrically connected to the first connector; a linkage mechanism, the linkage mechanism comprising a gear and a rack that mesh with each other, the gear being disposed in the charging compartment, and the rack being connected to the second connector; a driving mechanism, the driving mechanism being configured to drive the gear to rotate, thereby driving the second connector to move in a direction toward or away from the first connector, so as to electrically connect or disconnect the second connector to the first connector; The electrical connection device also includes a connector bearing surface, which is used to bear the second connector and the linkage mechanism. The second connector moves along the connector bearing surface under the drive of the linkage mechanism, so that the second connector is electrically connected or disconnected with the first connector.

2. The electrical connection device according to claim 1, wherein: The first side surface of the rack is a tooth surface; the second side surface of the rack contacts the bearing surface of the connector, the second side surface is opposite to the first side surface, and the gear is pressed onto the first side surface of the rack; and / or, The gear is provided on the connector bearing surface, and the gear is provided outside the moving area of ​​the second connector; and / or, The rotation center line of the gear is parallel or perpendicular to the connector bearing surface.

3. The electrical connection device according to claim 1, wherein: The second connector includes a fixed plate, a floating plate, at least one elastic member, and a plurality of poles, wherein the floating plate is movably mounted on a first side surface of the fixed plate via the elastic member, and the plurality of poles are mounted on the floating plate, each pole having an electrical contact end and a wiring end, wherein the electrical contact end is configured to contact the first connector to form an electrical connection, and the wiring end passes through the fixed plate and is configured to be connected to a power cable; The rack is connected to the fixing plate.

4. The electrical connection device according to claim 3, wherein: One end of the rack is connected to the fixing plate and is not exposed on the first side surface; the other end of the rack is exposed and connected to the second side surface of the fixing plate, and the second side surface is opposite to the first side surface.

5. The electrical connection device according to claim 1, wherein: The electrical connection device also includes at least one sliding guide mechanism, which is used to guide the second connector so that the second connector moves along a preset path in the charging compartment.

6. The electrical connection device according to claim 5, wherein: The rack is connected to the middle position of the second connector. There are two sliding guide mechanisms, which are arranged on both sides of the rack.

7. The electrical connection device according to claim 6, wherein: The sliding guide mechanism includes a matching slider and a slide rail; one of the slider or the slide rail is connected to the second connector, and the other of the slider or the slide rail is fixed in the charging compartment.

8. The electrical connection device according to claim 1, wherein: The electrical connection device also includes a rotating shaft and two shaft seats, the two shaft seats are arranged on both sides of the gear, bearings are provided on the shaft seats, both ends of the rotating shaft are passed through the two bearings, and the driving mechanism is connected to the gear through the rotating shaft.

9. The electrical connection device according to claim 8, wherein: The axial direction of the rotating shaft is perpendicular to the moving direction of the second connector.

10. A charging compartment, characterized in that: It comprises the electrical connection device according to any one of claims 1-9.

11. The charging bin according to claim 10, wherein: The charging compartment further includes: Battery carrying surface, used to carry the battery pack; A battery sensor, used to detect whether there is a battery pack on the battery supporting surface; a telescopic sensor, configured to detect a telescopic position of the second connector; A control unit is used to connect signals with the battery sensor, the telescopic sensor, and the driving mechanism.

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