Charging rack

Abstract

The utility model provides a charging rack, which is provided with at least one charging bin, the charging bin is used for accommodating a battery pack and is in butt joint with an interface of the battery pack through a connecting device of the charging bin so as to realize the charging purpose, the charging rack further comprises a positioning mechanism, and the positioning mechanism is arranged in the charging bin. And the specific position of the positioning mechanism in the charging bin is set as follows: the positioning mechanism can be in contact positioning with the lower surface of the battery pack placed in the charging bin so as to restrain the position of the battery pack in the horizontal direction. The positioning mechanism is in contact with the lower surface of the battery pack for positioning, so that the degree of freedom of the battery pack in the horizontal direction is limited, and the situation that the battery pack cannot be in butt joint with the connecting device due to large offset when the battery pack is placed in the charging bin of the charging rack is avoided; the connecting device is prevented from being damaged due to the fact that the connecting device makes contact with a shell of the battery pack instead of an interface when the offset of the battery pack is large, and the service life of the charging rack and the battery pack is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of battery replacement for new energy vehicles, and in particular to a charging rack. Background Art

[0002] In recent years, new energy vehicles have developed rapidly. Electric vehicles that rely on batteries as driving energy have the advantages of zero emissions and low noise. As the market share and usage frequency of electric vehicles are increasing, the equipment used to charge the depleted battery packs replaced by battery-swap vehicles is becoming more and more popular. The charging equipment usually includes a charging compartment and a connector that cooperates with the battery pack interface. The charging compartment is used to accommodate the battery pack, and the connector is used to cooperate with the interface to achieve electrical connection or liquid cooling connection, thereby replenishing the depleted battery pack.

[0003] However, when the battery pack is placed in the charging bin through the pick-and-place mechanism, there is a deviation in the position of the pick-and-place mechanism each time, which may cause the battery pack to be located in different positions after being placed in the charging bin, making it difficult for the battery pack's interface to connect to the charging connector in the charging bin, and ultimately causing the battery pack to be unable to charge. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a charging stand in order to overcome the defect in the prior art that the battery pack has a large placement deviation relative to the charging compartment and cannot be charged.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] A charging rack having at least one charging compartment, wherein the charging compartment is used to accommodate a battery pack and achieve charging by docking with an interface of the battery pack through a connecting device of the charging compartment. The charging rack also includes a positioning mechanism, which is arranged in the charging compartment. The specific position of the positioning mechanism in the charging compartment is set to: the positioning mechanism can contact and position with the lower surface of the battery pack placed in the charging compartment to constrain the horizontal position of the battery pack.

[0007] In this solution, a positioning mechanism is provided on the charging rack so that when the battery pack is placed on the charging rack for charging through the extension mechanism of the palletizer, the positioning mechanism contacts and positions the lower surface of the battery pack, thereby limiting the freedom of the battery pack in the horizontal direction, so that the interface of the battery pack can be quickly aligned with the connecting device on the charging rack, avoiding the situation where the battery pack cannot be docked with the connecting device due to offset when placed in the charging compartment of the charging rack, or even damage to the connecting device due to contact with the shell of the battery pack instead of the interface when the battery pack has a large offset, thereby improving the service life of the charging rack and the battery pack.

[0008] Preferably, the positioning mechanism includes a connecting part and a positioning part, one end of the connecting part is connected to the main body of the charging stand, and the other end of the connecting part extends along the direction of taking and placing the battery pack. A plurality of the positioning parts are provided in the same charging compartment, and the plurality of positioning parts are spaced above the connecting part along the direction of taking and placing the battery pack and cooperate with the positioning holes of the battery pack.

[0009] In this solution, through the above-mentioned arrangement, the positioning part is connected to the main body of the charging stand through the connecting part and is arranged at various positions in the direction of taking and placing the battery pack. The positioning part cooperates with the positioning hole along the direction of taking and placing the battery pack to position the battery pack at different positions, thereby preventing the battery pack from being partially missing in positioning.

[0010] Preferably, along a direction perpendicular to the taking and placing direction, the connecting portion is arranged at a middle position of the charging compartment and is staggered with an extending mechanism of a palletizer for taking and placing the battery pack.

[0011] In this solution, through the above-mentioned setting, the positioning mechanism can avoid interference with the extension mechanism when it is set along the direction of taking and placing the battery pack. After the battery pack is placed in the charging compartment, the positioning mechanism positions the battery pack to reduce the horizontal movement of the battery pack after it is placed in the charging compartment.

[0012] Preferably, the height of the positioning portion in the vertical direction is adjustable and the heights of multiple positioning portions in the same charging compartment are consistent.

[0013] In this solution, the height of the positioning portion in the vertical direction is adjusted to accommodate battery packs of different thicknesses, so that the charging stand can be compatible with battery packs of different sizes.

[0014] Preferably, the positioning part includes a positioning pin and a connecting rod connected to the positioning pin, the connecting part is provided with a through hole corresponding to the connecting rod, one end of the connecting rod is connected to the positioning pin through the through hole so that the positioning pin is fixed above the connecting part, and the connecting rod can drive the positioning pin to move up and down.

[0015] In this solution, the positioning pin is driven up and down by a connecting rod to realize the upper end of the positioning part to move in the vertical direction and cooperate with the positioning hole in time. Compared with other methods of driving the positioning pin to move in the vertical direction, the connecting rod driving method has a simpler structure, and the position of the positioning pin is less likely to deviate, and the positioning is more accurate.

[0016] Preferably, the positioning mechanism also includes a boss arranged on the top of the connecting part and a locking piece arranged on the side of the connecting part opposite to the boss, the positioning pin is arranged on the boss, the connecting rod passes through the boss and is connected to the positioning pin, and the locking piece is sleeved on the connecting rod and cooperates with the boss to clamp the two opposite sides of the connecting part.

[0017] In this solution, through the above-mentioned setting, the locating pin is clamped to the top of the connecting part through the boss and the locking piece, thereby improving the stability of the locating pin, avoiding the displacement of the locating pin, and improving the positioning accuracy. In addition, the boss can also improve the load resistance of the locating pin, thereby increasing the service life of the positioning part.

[0018] Preferably, a threaded connecting hole is provided at the axis of the locating pin, the connecting rod is a bolt, the locking piece is a nut, and the nut is arranged to always fit on the side surface of the connecting portion away from the boss so that when the bolt rotates, the locating pin moves downward or upward relative to the boss in the vertical direction.

[0019] In this solution, through the above-mentioned settings, the positioning pin always moves along the axial direction, and the accuracy of the moving distance can be precisely controlled. At the same time, the movement of the positioning pin along the axial direction can avoid the situation where the positioning pin is too high and the depth of the positioning hole of the battery pack is lower than the height of the positioning pin, and the positioning pin pushes against the battery pack and is affected by the gravity of the battery pack.

[0020] Preferably, the positioning pin includes a guide portion, which is located at the end of the positioning pin away from the boss, and the guide portion is configured to gradually increase in cross-sectional area from top to bottom to guide the positioning portion to cooperate with the inner wall of the positioning hole.

[0021] In this solution, a guide portion is provided to improve the success rate of the fit between the positioning pin and the positioning hole, reduce the difficulty of fit, and improve the positioning efficiency of the battery pack.

[0022] Preferably, the charging rack includes a frame body and an auxiliary beam extending in a vertical direction, at least the upper end of the auxiliary beam is connected to the frame body and is located on the side of the frame body away from the entry and exit of the battery pack, and each of the connecting parts located in different charging compartments is connected to the auxiliary beam through a bottom plate, and each of the connecting parts also includes a plurality of reinforcing ribs, and the plurality of reinforcing ribs are respectively arranged on the outer peripheral side of the corresponding connecting part and connected to the bottom plate.

[0023] In this solution, the aforementioned arrangement allows the auxiliary beam to avoid the battery pack from entering and exiting the charging compartment, while also enhancing the structural strength of the frame. The provision of reinforcing ribs improves the stability and reliability of the connection between the auxiliary beam and the auxiliary beam, preventing the connection from shifting due to structural deformation during long-term use, which could result in the positioning pin failing to engage with the positioning hole. This improves the overall reliability of the positioning mechanism.

[0024] Preferably, the auxiliary beam is arranged in the middle position of the charging compartment along a direction perpendicular to the picking and placing direction, and the charging rack also includes a plurality of cross beams connected between the auxiliary beam and the frame body, and the plurality of cross beams are arranged at intervals along the vertical direction and are located in different charging compartments, and an avoidance portion is provided on the cross beam to accommodate the distal end of the extending mechanism when the extending mechanism is extended into the charging compartment.

[0025] In this solution, an avoidance portion is provided so that the avoidance portion can avoid the corresponding extending mechanism, thereby preventing interference between the charging compartment and the extending mechanism, resulting in failure to smoothly remove and place the battery pack.

[0026] Preferably, the avoidance portion is a groove formed by being recessed downward from the top of the beam or recessed upward from the bottom of the beam.

[0027] In this solution, the above arrangement enables the extending mechanism to move in the vertical direction during the process of taking or placing the battery pack, thereby avoiding interference between the avoidance portion and the movement trajectory of the extending mechanism.

[0028] Preferably, the connecting device includes a base, a movable unit, a connecting mechanism and a first floating unit, the connecting mechanism is connected to the first floating unit, the connecting mechanism has a connector that can be plugged into the battery pack, the movable unit is used to drive the first floating unit to move in a vertical direction on the base so that the connector is plugged into the battery pack, and the first floating unit at least drives the connecting mechanism to float in its moving direction.

[0029] In this solution, the aforementioned structure is employed, with the movable unit driving the first floating unit to move in its extension direction, allowing the first floating unit to drive the connector to move vertically toward or away from the battery pack to achieve plug-in connection between the connector and the battery pack. First, with this arrangement, the connector only needs to move in a single vertical direction, simplifying the overall structure of the floating connection device and simplifying docking with the battery pack, thereby improving docking reliability. Second, during the plug-in connection between the connector and the battery pack, the first floating unit is able to float in the direction of movement, preventing damage to the connector or battery pack caused by hard contact between the connection device and the battery pack during the plug-in connection process, thereby increasing the service life of both.

[0030] Preferably, the connecting device further comprises a second floating unit, which is arranged between the connecting mechanism and the first floating unit, and the second floating unit at least drives the connecting mechanism to float in its moving direction.

[0031] In this solution, the second floating unit is capable of floating in the direction of movement, further increasing the floating range of the connecting mechanism. This further prevents hard contact between the connecting mechanism and the battery pack during insertion and removal, which could damage the connector or battery pack and improve the service life of both. Furthermore, with this structural form, both the first and second floating units can float the connector in the vertical direction, thereby increasing the connector's vertical floating range.

[0032] Preferably, the connector includes an electrical connector and / or a liquid cooling connector, and the connecting mechanism further includes a mounting plate, the mounting plate is connected to the first floating unit, and the electrical connector and / or the liquid cooling connector is arranged on the mounting plate.

[0033] In this solution, the above-mentioned structural form is adopted. First, the battery pack can be docked with the electrical connector and / or the liquid cooling connector to realize charging and discharging and / or temperature control of the battery pack; secondly, by connecting with the first floating unit, the electrical connector and / or the liquid cooling connector can be driven to float in the moving direction, thereby avoiding hard contact between the connecting device and the battery pack during the plug-in connection process, which may cause damage to the connector or the battery pack, thereby improving the service life of both.

[0034] Preferably, the connector includes an electrical connector and / or a liquid cooling connector, and the connecting mechanism further includes a mounting plate, the mounting plate is connected to the second floating unit, and the electrical connector and / or the liquid cooling connector is arranged on the mounting plate.

[0035] In this solution, the above-mentioned structural form is adopted. First, the battery pack can be docked with the electrical connector and / or the liquid cooling connector to realize charging and discharging and / or temperature control of the battery pack; secondly, by connecting with the second floating unit, the electrical connector and / or the liquid cooling connector can be driven to float in the moving direction, thereby avoiding hard contact between the connecting device and the battery pack during the plug-in connection process, which may cause damage to the connector or the battery pack, thereby improving the service life of both.

[0036] Preferably, the moving unit includes a sliding member and a guide rail slidably matched with the sliding member, one of the sliding member and the guide rail is provided on the base, and the other is connected to the first floating unit.

[0037] In this solution, the above-mentioned structural form is adopted, and the sliding member and the guide rail cooperate to provide guidance for the movement of the first floating unit while improving the stability and reliability of the movement of the moving plate; in addition, the cooperation between the sliding member and the guide rail also reduces the friction of the movement of the moving plate.

[0038] Preferably, the moving unit also includes a sliding plate, the sliding member is fixed to one side of the sliding plate, and the other side of the sliding plate is connected to the first floating unit. The connecting device also includes a detection unit, which is used to detect the position of the sliding plate to confirm the connection status of the connecting head.

[0039] In this solution, the connection between the sliding member and the first floating unit is achieved through the sliding plate. In addition, with this structural form, the detection unit can accurately determine whether the connector and the battery pack are connected, avoiding connection errors or incomplete connections, and improving the accuracy of the connector and battery pack insertion.

[0040] Preferably, the detection unit includes a sensing component and a matching component, wherein one of the sensing component and the matching component is disposed on the base, and the other is disposed on the sliding plate.

[0041] In this solution, the above-mentioned structural form is adopted to prevent the sliding plate from moving beyond the limit position and causing the sliding plate to collide with other components, thereby improving the safety and stability of the sliding of the sliding plate.

[0042] The positive progressive effect of the present invention is that: the present invention provides a positioning mechanism on the charging rack, so that when the battery pack is placed on the charging rack for charging through the extension mechanism of the palletizer, the positioning mechanism contacts and positions the lower surface of the battery pack, thereby limiting the freedom of the battery pack in the horizontal direction, so that the interface of the battery pack can be quickly aligned with the connecting device on the charging rack, avoiding the situation where the battery pack cannot be docked with the connecting device due to a large offset when placed in the charging compartment of the charging rack, and preventing the connecting device from being damaged due to the contact between the connecting device and the shell of the battery pack instead of the interface when the battery pack has a large offset, thereby improving the service life of the charging rack and the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a schematic structural diagram of a charging stand according to a preferred embodiment of the present invention.

[0044] Figure 2 This is a diagram showing the positional relationship between the battery pack and the charging stand in a preferred embodiment of the present invention.

[0045] Figure 3 This is a diagram showing the positional relationship between the positioning mechanism and the battery pack in a preferred embodiment of the present invention.

[0046] Figure 4This is a three-dimensional diagram of a positioning mechanism according to a preferred embodiment of the present invention.

[0047] Figure 5 This is a diagram showing the positional relationship between the locking member and the connecting portion of a preferred embodiment of the present invention.

[0048] Figure 6 This is a diagram showing the positional relationship between the positioning pin and the boss in a preferred embodiment of the present invention.

[0049] Figure 7 This is a diagram showing the positional relationship between the reinforcing ribs and the bottom plate of a preferred embodiment of the present invention.

[0050] Figure 8 This is a structural diagram of a liquid-cooled floating connection device according to a preferred embodiment of the present invention.

[0051] Figure 9 This is a partial structural diagram of a liquid-cooled floating connection device according to a preferred embodiment of the present invention.

[0052] Figure 10 This is a cross-sectional schematic diagram of a liquid-cooled floating connection device according to a preferred embodiment of the present invention.

[0053] Figure 11 This is a schematic diagram of a liquid-cooled floating connection device according to a preferred embodiment of the present invention.

[0054] Figure 12 This is a structural diagram of an electrical floating connection device according to a preferred embodiment of the present invention.

[0055] Figure 13 Schematic diagram of an electrical floating connection device according to a preferred embodiment of the present invention.

[0056] Figure 14 This is a partial schematic diagram of an electrical floating connection device according to a preferred embodiment of the present invention.

[0057] Description of reference numerals:

[0058] Charging rack 1000; rack body 101; auxiliary beam 102; bottom plate 103; reinforcing rib 104; crossbeam 105; avoidance portion 1051; charging compartment 10; battery pack 20; positioning hole 21; positioning mechanism 30; connecting portion 31; positioning portion 32; positioning pin 321; guide portion 3211; connecting rod 322; boss 33; locking member 34; connecting device 1; electrically floating connecting device 100; liquid-cooled floating connecting device 200; base 11; mobile unit 12; sliding member 121; guide rail 122; sliding plate 123; connecting mechanism 13; mounting plate 131; third elastic member 132 ; First floating unit 14; First fixed plate 141; First connecting hole 1411; First weight-reducing hole 1412; First floating plate 142; Second connecting hole 1421; Second weight-reducing hole 1422; First elastic member 143; First connecting member 144; First fixing member 145; Second fixing member 146; Spherical gasket 147; Connector 15; Electrical connector 151; Liquid-cooling connector 152; Second floating unit 16; Second floating plate 161; Second elastic member 162; Second connecting member 163; Third weight-reducing hole 164; Detection unit 17; Sensing member 171; Matching member 172. DETAILED DESCRIPTION

[0059] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0060] like Figures 1 to 7 As shown, this embodiment provides a charging rack 1000, which has at least one charging compartment 10. The charging compartment 10 is used to accommodate a battery pack 20 and achieve charging by docking with the interface of the battery pack 20 through the connecting device 1 of the charging compartment 10. The charging rack 1000 also includes a positioning mechanism 30, which is arranged in the charging compartment 10. The specific position of the positioning mechanism 30 in the charging compartment 10 is set to: the positioning mechanism 30 can contact and position with the lower surface of the battery pack 20 placed in the charging compartment 10 to constrain the horizontal position of the battery pack 20.

[0061] Specifically, when the battery pack 20 needs to be charged, the battery pack 20 needs to be placed in the charging compartment 10 of the charging rack 1000 through the extension mechanism of the palletizer. The charging compartment 10 is provided with a support part for supporting the battery pack 20. The support part is usually provided at both ends of the charging compartment 10 along the length direction of the battery pack 20. This is the existing technology and will not be elaborated here. As for the positioning mechanism 30 additionally provided in the charging compartment 10, the battery pack 20 is installed in the charging compartment 10 through the support portion, and is also contacted and positioned with the lower surface of the battery pack 20 through the positioning mechanism 30 to limit the horizontal freedom of the battery pack 20. Then, when the battery pack 20 is placed on the charging rack 1000 for charging through the extension mechanism of the palletizer, the interface of the battery pack 20 can be quickly aligned with the connecting device 1 on the charging rack 1000, avoiding the lack of positioning of the battery pack 20 when placed in the charging compartment 10 of the charging rack 1000, resulting in a large offset in the direction of taking and placing the battery pack 20 by the extension mechanism and being unable to dock with the connecting device 1. This prevents damage to the connecting device 1 caused by the connecting device 1 contacting the shell of the battery pack 20 instead of the interface when the battery pack 20 is greatly offset in the direction of taking and placing the battery pack 20, thereby improving the service life of the charging rack 1000 and the battery pack 20.

[0062] It can be understood that the positioning mechanism 30 is set on the lower surface of the battery pack 20 and contacts it for positioning. Compared with surfaces in other directions, such as the upper surface or the side, the positioning mechanism 30 conforms to the picking and placing direction and picking and placing habits of the battery pack 20, does not drive the battery pack 20 to move additionally, and avoids interference with the operation of the extension mechanism; the positioning mechanism 30 can not only provide the function of positioning the battery pack 20, but the connecting part 31 of the positioning mechanism 30 can also support the battery pack 20 when it contacts the lower surface of the battery pack 20, so that the battery pack 20 placed in the charging compartment 10 is more stable.

[0063] like Figure 3 、 Figure 4 and Figure 5 As shown, in this embodiment, the positioning mechanism 30 includes a connecting portion 31 and a positioning portion 32. One end of the connecting portion 31 is connected to the main body of the charging stand 1000, and the other end of the connecting portion 31 extends along the direction of taking and placing the battery pack 20. A plurality of positioning portions 32 are provided in the same charging compartment 10, and the plurality of positioning portions 32 are spaced apart above the connecting portion 31 along the direction of taking and placing the battery pack 20 and cooperate with the positioning holes 21 of the battery pack 20.

[0064] Specifically, the connecting portion 31 is a rod, disposed on the lower surface of the battery pack 20 when placed in the charging compartment 10 along the access direction. The connecting portion 31 is horizontally connected to the main body of the charging stand 1000. Multiple positioning portions 32 are spaced apart on the connecting portion 31 to ensure that the multiple positioning portions 32 contact and position the battery pack 20 when the battery pack 20 is placed in the charging compartment 10. The multiple positioning portions 32 are spaced apart to correspond to different locations on the lower surface of the battery pack 20, contacting and positioning each location on the lower surface of the battery pack 20 to prevent the battery pack 20 from being partially misaligned.

[0065] It should be noted that some battery packs 20 are used to be installed on battery-swap vehicles, and a plurality of positioning holes 21 are provided on the lower surface of these battery packs 20. The battery packs 20 are installed on the battery-swap vehicle through the original positioning holes 21 of these battery packs 20. The positioning portion 32 in this embodiment utilizes the existing positioning holes 21 on the battery pack 20 to set the positioning portion 32 on the connecting portion 31 corresponding to the positioning holes 21 of the battery pack 20. There is no need to open additional holes on the battery pack 20, and the positioning holes 21 of the battery pack 20 are reasonably utilized. It can be understood that the positioning holes 21 are provided near the edge of the battery pack 20 to avoid affecting the battery cell capacity of the battery pack 20 when the positioning holes 21 are provided in the middle area of ​​the lower surface of the battery pack 20. Accordingly, the multiple positioning portions 32 on the connecting portion 31 are provided near the end of the connecting portion 31 to correspond to the positioning holes 21 at the edge of the battery pack 20.

[0066] In this embodiment, the connecting portion 31 is disposed in the middle of the charging compartment 10 along a direction perpendicular to the placement direction and is offset from the extension mechanism of the palletizer for placing and taking the battery packs 20 .

[0067] Specifically, the extending mechanism of the palletizer drives the battery pack 20 to rise and fall in the vertical direction when taking and placing the battery pack 20, so as to approach or move away from the support part in the charging compartment 10, thereby realizing the taking and placing of the battery pack 20. The extending mechanism in the prior art usually has two or more extending arms, and the two or more extending arms are arranged at intervals. After the battery pack 20 is placed in the charging compartment 10 by the extending mechanism, the positioning mechanism 30 positions the battery pack 20 to reduce the horizontal movement of the battery pack 20 after being placed in the charging compartment 10. The connecting portion 31 arranged in the horizontal direction, that is, the connecting portion 31 arranged in the direction perpendicular to the vertical direction, is located in the middle area of ​​the charging compartment 10. The connecting portion 31 is spaced apart from the supporting portions at both ends of the charging compartment 10. From the appearance, when the extending mechanism is taking or placing the battery pack 20, two or more extending arms are located on the lower surface of the battery pack 20 and the connecting portion 31 is located between the two or more extending arms, so as to reserve movement space for the extending mechanism of the palletizer and prevent the extending mechanism of the palletizer from interfering with the connecting portion 31 of the positioning mechanism 30 when taking or placing the battery pack 20. After the battery pack is placed in place, the connecting portion and the supporting portion together play a supporting role.

[0068] In this embodiment, the height of the positioning portion 32 in the vertical direction is adjustable and the heights of multiple positioning portions 32 in the same charging compartment 10 are consistent.

[0069] Specifically, the lower surface of the battery pack 20 is a plane. After the battery pack 20 is placed in the charging compartment 10, all positions of the lower surface of the battery pack 20 are located in the same horizontal plane. In the direction perpendicular to the lower surface of the battery pack 20, that is, in the vertical direction, the height of the positioning portion 32 can be adjusted to be close to or away from the lower surface of the battery pack 20. By adjusting the height of the positioning portion 32 in the vertical direction to adapt to the different heights of the lower surface of the battery pack 20 from the positioning portion 32, that is, to position battery packs 20 of different thicknesses, the charging rack 1000 can be compatible with battery packs 20 of different sizes.

[0070] It should be noted that the height adjustment of the positioning part 32 can be achieved by using a cylinder or servo motor in the existing technology to drive the positioning part 32 to move, and the output shaft of the cylinder or servo motor is used to push the positioning part 32 to achieve the height adjustment of the positioning part 32. This is the existing technology and will not be elaborated on here.

[0071] It can be understood that in this embodiment, the heights of the multiple positioning portions 32 are consistent so that they can simultaneously extend into the positioning hole 21 when contacting the positioning hole 21 of the battery pack 20, thereby preventing the multiple positioning portions 32 of different heights from contacting the positioning hole 21 in sequence and causing the battery pack 20 to shift in the charging compartment 10, thereby ensuring the consistency of the positioning effects at various positions on the lower surface of the battery pack 20.

[0072] Further, if Figure 6 and Figure 7 As shown, in this embodiment, the positioning portion 32 includes a positioning pin 321 and a connecting rod 322 connected to the positioning pin 321. A through hole is provided in the connecting portion 31 corresponding to the connecting rod 322. One end of the connecting rod 322 is connected to the positioning pin 321 through the through hole so that the positioning pin 321 is fixed above the connecting portion 31. The connecting rod 322 can drive the positioning pin 321 to move up and down.

[0073] When the cam 321 is in the upright position, the cam 322 is in the upright position, and the positioning pin 321 is in the upright position, so that the positioning pin 321 can be adjusted to fit the positioning pin 321 when the cam 322 is in the upright position.

[0074] In this embodiment, the positioning mechanism 30 also includes a boss 33 arranged on the top of the connecting part 31 and a locking member 34 arranged on the side of the connecting part 31 opposite to the boss 33. The positioning pin 321 is arranged on the boss 33, and the connecting rod 322 passes through the boss 33 and is connected to the positioning pin 321. The locking member 34 is sleeved on the connecting rod 322 and cooperates with the boss 33 to clamp the two opposite sides of the connecting part 31.

[0075] Specifically, along the vertical direction, the positioning pin 321, the boss 33, the connecting portion 31, the locking member 34 and the connecting rod 322 are arranged in sequence from top to bottom, wherein the connecting portion 31 is a rectangular rod, and the bottom of the connecting portion 31 has an opening, the top surface of the rectangular rod is a flat plate and has a through hole, the boss 33 and the positioning pin 321 are both arranged on the upper surface of the top surface, the locking member 34 and the connecting rod 322 are arranged on the lower surface of the top surface, and the connecting rod 322 passes through the locking member 34, the through hole, the boss 33 and The cam 33 is connected to the locating pin 321. From the appearance, the locking member 34 and the boss 33 clamp the top surface between the two. The locating pin 321 is in contact with the top surface of the connecting portion 31 through the boss 33. Then, the locking member 34 and the boss 33 cooperate to clamp the upper and lower surfaces of the top surface. That is, when the two sides of the connecting portion 31 are separated from each other, the boss 33 is attached to the connecting portion 31, so that the stability of the locating pin 321 on the boss 33 in the vertical direction is correspondingly improved, thereby avoiding the deviation of the locating pin 321 and improving the positioning accuracy.

[0076] In addition, the boss 33 is located between the positioning pin 321 and the top surface, which increases the contact area between the positioning pin 321 and the top surface to improve the load resistance of the positioning pin 321, so that the positioning part 32 can be reused multiple times, thereby increasing the service life of the positioning part 32.

[0077] In this embodiment, a threaded connection hole is provided at the axis of the positioning pin 321, the connecting rod 322 is a bolt, and the locking piece 34 is a nut. The nut is configured to always fit on the side surface of the connecting portion 31 away from the boss 33 so that when the bolt rotates, the positioning pin 321 moves downward or upward relative to the boss 33 in the vertical direction.

[0078] Specifically, the locating pin 321 is provided with a connecting hole at the end corresponding to the connecting rod 322, and the connecting hole has a thread. The boss 33 has a circular hole for the connecting rod 322 to pass through the boss 33 and be screwed to the locating pin 321. The locking member 34 is always in contact with the lower surface of the top surface of the connecting portion 31. When the connecting rod 322 rotates, the locating pin 321 moves upward or downward in the vertical direction. The vertical direction is the axis direction of the locating pin 321. Compared with other structures for driving the movement of the locating pin 321, the structure is simple and the cost is lower. When the locating pin 321 is driven by the screw connection to achieve height adjustment, the height of adjustment can be precisely controlled with higher precision.

[0079] It can be understood that moving the positioning pin 321 in the vertical direction can avoid the situation where the positioning pin 321 is too high and the depth of the positioning hole 21 of the battery pack 20 is lower than the height of the positioning pin 321, in which case the positioning pin 321 pushes against the battery pack 20 and is affected by the gravity of the battery pack 20, thereby improving the service life of the positioning pin 321 and the positioning portion 32.

[0080] Furthermore, in this embodiment, the positioning pin 321 includes a guide portion 3211, which is located at the end of the positioning pin 321 away from the boss 33. The guide portion 3211 is configured to gradually increase in cross-sectional area from top to bottom to guide the positioning portion 32 to cooperate with the inner wall of the positioning hole 21.

[0081] Specifically, the guide portion 3211 is a conical structure arranged at the end of the positioning pin 321, wherein the size of the guide portion 3211 at the end away from the boss 33 is smaller than the size of the guide portion 3211 at the end close to the boss 33. From the cross-section, the cross-sectional area of ​​the guide portion 3211 gradually increases from top to bottom. When cooperating with the positioning hole 21, the end of the guide portion 3211 with a smaller size first extends into the positioning hole 21 to improve the success rate of the cooperating between the positioning pin 321 and the positioning hole 21, reduce the difficulty of cooperating, and improve the positioning efficiency of the battery pack 20.

[0082] It is understandable that the guide portion 3211 is the chamfering treatment of the positioning pin 321 in the prior art, and will not be described in detail here.

[0083] In this embodiment, the charging rack 1000 includes a frame body 101 and an auxiliary beam 102 extending in a vertical direction. At least the upper end of the auxiliary beam 102 is connected to the frame body 101 and is located on the side of the frame body 101 away from the entry and exit of the battery pack 20. The various connection parts 31 located in different charging compartments 10 are connected to the auxiliary beam 102 through the bottom plate 103. Each connection part 31 also includes a plurality of reinforcing ribs 104. The plurality of reinforcing ribs 104 are respectively arranged on the outer peripheral side of the corresponding connection part 31 and connected to the bottom plate 103.

[0084] Specifically, the frame 101 includes a plurality of longitudinal beams arranged in the vertical direction, and a plurality of longitudinal beams arranged opposite each other in the horizontal direction. The plurality of longitudinal beams are arranged opposite each other in the horizontal direction, and the charging compartment 10 for accommodating the battery pack 20 is formed between the plurality of longitudinal beams. The plurality of longitudinal beams arranged opposite each other are welded together by a horizontally arranged connecting beam to form a whole. It is understood that the charging compartment 10 is arranged in a vertical direction and has a plurality of them. The frame 101 is also provided with an auxiliary beam 102 in the vertical direction. The auxiliary beam 102 is a rectangular rod and is perpendicularly connected to the connecting beam. The connecting beam and the auxiliary beam 102 are located on the side of the charging compartment 10 away from the entry and exit of the battery pack 20. When the battery pack 20 is taken in and placed in the charging compartment 10 by the extension mechanism of the palletizer, the battery pack 20 is avoided from entering and exiting the charging compartment 10, compared to when the connecting beam and the auxiliary beam 102 are located on the side of the charging compartment 10 close to the entry and exit of the battery pack 20, thereby preventing interference with the extension mechanism.

[0085] It is understandable that the additional auxiliary beams 102 increase the number of beams on the frame 101 , thereby improving the structural strength of the frame 101 .

[0086] In this embodiment, the positioning mechanism 30 is connected to the frame 101, and further to the charging rack 1000, via the auxiliary beam 102. Specifically, one end of the connecting portion 31 of the positioning mechanism 30 is perpendicularly connected to the auxiliary beam 102. A bottom plate 103 is provided between the end of the connecting portion 31 and the surface of the auxiliary beam 102. The bottom plate 103 is a rectangular plate. The connection between the connecting portion 31 and the auxiliary beam 102 is achieved through the bottom plate 103, thereby increasing the contact area between the connecting portion 31 and the auxiliary beam 102 and improving the stability of the connecting portion 31.

[0087] On this basis, a plurality of reinforcing ribs 104 are provided on the outer peripheral side of the connection part 31, and the reinforcing ribs 104 are respectively provided on both sides and the bottom of the connection part 31 in the horizontal direction. The reinforcing ribs 104 are a triangular structure in the prior art, and one side of the two sides of the triangular structure is connected to the side of the connection part 31, and the other side is connected to the bottom plate 103. The stability and reliability of the connection between the connection part 31 and the auxiliary beam 102 are improved through the reinforcing ribs 104, so as to avoid the connection part 31 from being offset due to structural deformation during long-term use, which in turn causes the positioning pin 321 to be unable to cooperate with the positioning hole 21, thereby improving the overall reliability of the positioning mechanism 30.

[0088] It should be noted that no reinforcing rib 104 is provided between the top surface of the connecting portion 31 and the bottom plate 103 to reserve space on the top surface of the connecting portion 31 to prevent the reinforcing rib 104 from interfering with the lower surface of the battery pack 20 .

[0089] like Figure 2 As shown, in this embodiment, the auxiliary beam 102 is disposed in the middle of the charging compartment 10, perpendicular to the placement direction. The charging rack 1000 further includes a plurality of crossbeams 105 connected between the auxiliary beam 102 and the rack body 101. The multiple crossbeams 105 are spaced apart in the vertical direction and located in different charging compartments 10. The crossbeams 105 are provided with avoidance portions 1051 to accommodate the distal end of the extension mechanism when the extension mechanism extends into the charging compartment 10. By arranging the auxiliary beam 102 in the middle of the charging compartment 10, the connection portion 31 connected to the auxiliary beam 102 via the bottom plate 103 is located in the middle area of ​​the charging compartment 10. This allows for movement space within the charging compartment 10 for the extension mechanism of the palletizer, thereby preventing the extension mechanism of the palletizer from interfering with the connection portion 31 when placing and removing the battery packs 20.

[0090] At the same time, additional crossbeams 105 are provided to increase the number of beams between the multiple opposing longitudinal beams, thereby enhancing the structural strength of the charging rack 1000. Crossbeams 105 are installed in each charging bay 10, thereby increasing the structural strength of each charging bay 10. A clearance portion 1051 is provided on the crossbeam 105 to avoid the extension arm of the palletizer's extension mechanism, preventing interference between the charging bay 10 and the extension mechanism, which could result in difficulty in successfully removing and placing the battery pack 20.

[0091] In this embodiment, the avoidance portion 1051 is a groove that is recessed downward from the top of the beam 105. The groove is a rectangular groove and its opening is vertically upward. This groove conforms to the pick-up and placement direction and picking-up and placement habits of the extension mechanism of the palletizer for picking up and placing the battery pack 20. On the basis of avoiding interference with the extension mechanism, the beam 105 with the avoidance portion 1051 can meet the demand for improving the structural strength of the charging rack 1000.

[0092] In other embodiments, the avoidance portion 1051 is a groove formed upwardly from the bottom of the crossbeam 105. It is understood that when the palletizer's extension mechanism removes or places a battery pack 20, it first vertically raises or lowers the battery pack 20 to disengage or engage with the positioning mechanism 30. A vertically upward groove also allows the extension mechanism to move in the correct direction, thus avoiding interference with the extension mechanism. Therefore, the avoidance portion 1051 can also be a groove formed upwardly from the bottom of the crossbeam 105.

[0093] like Figures 8 to 14As shown, in this embodiment, the connecting device 1 includes a base 11, a mobile unit 12, a connecting mechanism 13 and a first floating unit 14. The connecting mechanism 13 is connected to the first floating unit 14. The connecting mechanism 13 has a connector 15 that can be plugged into the battery pack 20. The mobile unit 12 is used to drive the first floating unit 14 to move in a vertical direction on the base 11 so that the connector 15 is plugged into the battery pack 20. The first floating unit 14 at least drives the connecting mechanism 13 to float in its moving direction.

[0094] Specifically, when the battery pack 20 needs to be charged or discharged, the connection device 1 needs to be plugged into the battery pack 20. At this time, the first floating unit 14 can be moved vertically by the moving unit 12 to approach the battery pack 20, ultimately enabling the connector 15 on the connection mechanism 13 to plug into the connector (not shown) on the battery pack 20. During the plug-in connection process, the first floating unit 14 can float in the direction of movement, preventing hard contact between the connection device 1 and the battery pack 20 during the plug-in connection process, which could damage the connector 15 or the battery pack 20 and improve the service life of both. When the battery pack 20 is fully charged, the connection device 1 is disconnected from the battery pack 20. At this time, the first floating unit 14 can be moved away from the battery pack 20 by the moving unit 12, ultimately disconnecting the connector 15 on the connection mechanism 13 from the connector 15 on the battery pack 20. Furthermore, with this arrangement, the connector 15 only needs to move in a single vertical direction, simplifying the overall structure of the connection device 1 and simplifying docking with the battery pack 20, thereby improving docking reliability.

[0095] like Figures 8 to 14As shown, the first floating unit 14 includes a first fixed plate 141, a first floating plate 142, and a first elastic member 143 disposed between the first fixed plate 141 and the first floating plate 142. The first fixed plate 141 is connected to the movable unit 12, and the connecting mechanism 13 is disposed on the side of the first floating plate 142 facing away from the first elastic member 143. The first elastic member 143 is configured to extend vertically and have a corresponding elastic force direction. With this structure, the first fixed plate 141 is connected to the movable unit 12, allowing the movable unit 12 to move the first fixed plate 141 vertically. This, in turn, allows the connector 15 to move toward or away from the battery pack 20, thereby enabling a plug-and-unplug connection between the connector 15 and the battery pack 20. Furthermore, the first elastic member 143 is disposed between the first fixed plate 141 and the first floating plate 142, and its elastic force is directed vertically, allowing the first floating plate 142 to move vertically toward or away from the first fixed plate 141. In other words, through the first fixed plate 141 and the first elastic member 143, the first floating plate 142 is floated in the moving direction, thereby driving the connector 15 on the connecting mechanism 13 to float in the moving direction, thereby avoiding hard contact between the connecting device 1 and the battery pack 20 during the plug-in connection process, which may cause damage to the connector 15 or the battery pack 20, thereby improving the service life of both.

[0096] It should be specified that, Figure 9 and Figure 11 As shown, in this embodiment, a first weight-reducing hole 1412 and a second weight-reducing hole 1422 are respectively provided on the first fixing plate 141 and the first floating plate 142 , thereby facilitating the reduction of the weight of the first floating unit 14 and further facilitating the reduction of the weight of the connecting device 1 .

[0097] like Figures 8 to 14As shown, the first elastic member 143 is a rubber sleeve. The first floating unit 14 also includes a first connecting member 144 for connecting the first fixed plate 141 and the first floating plate 142. The rubber sleeve is positioned between the first fixed plate 141 and the first floating plate 142 and sleeved onto the first connecting member 144. Specifically, the first connecting member 144 connects the first fixed plate 141 and the first floating plate 142. With this structure, the rubber sleeve has a low elastic modulus, allowing for greater elastic deformation. Therefore, positioning the rubber sleeve between the first floating plate 142 and the first fixed plate 141 increases the vertical floating range of the first floating plate 142, thereby increasing the vertical floating range of the connector 15. Furthermore, the rubber sleeve sleeved onto the first connecting member 144 prevents interference between the rubber sleeve and the first connecting member 144, improving operational stability and enhancing the compactness of the first floating unit 14.

[0098] like Figure 10 As shown, the first fixed plate 141 and the first floating plate 142 respectively have a first connecting hole 1411 and a second connecting hole 1421 for the first connecting member 144 to pass through. The apertures of the first connecting hole 1411 and the second connecting hole 1421 are both smaller than the diameter of the rubber sleeve and larger than the diameter of the first connecting member 144. A first fixing member 145 and a second fixing member 146 are respectively provided at both ends of the first connecting member 144 to prevent the first connecting member 144 from being separated from the first fixed plate 141 and the first floating plate 142. Spherical washers 147 are respectively provided between the first fixing member 145 and the first fixed plate 141 and between the second fixing member 146 and the first floating plate 142, so that the first floating plate 142 can float in multiple directions relative to the first fixed plate 141. Specifically, first connection hole 1411 and second connection hole 1421 facilitate the insertion of first connector 144 through first fixed plate 141 and first floating plate 142, thereby facilitating the connection of first connector 144 to first fixed plate 141 and first floating plate 142, respectively. Furthermore, the diameters of first connection hole 1411 and second connection hole 1421 are both smaller than the diameter of the rubber sleeve, preventing the rubber sleeve from becoming stuck within first connection hole 1411 and / or second connection hole 1421 and affecting the vertical compression and extension of the rubber sleeve, thereby facilitating the vertical floating of connector 15. Furthermore, with the aforementioned structural form, the spherical gasket 147 can compensate for any deviations that may occur during the alignment of connector 1 and battery pack 20, thereby improving the accuracy of the alignment process and, consequently, the efficiency of the alignment of connector 1 and battery pack 20.

[0099] Specifically, spherical gasket 147 has a groove on one side and a protrusion on the other, with the groove and protrusion corresponding to each other. For spherical gasket 147 positioned between second fixing member 146 and first floating plate 142, the edge of the groove abuts one of the two, while the bottom of the protrusion abuts the other. The same applies to spherical gasket 147 positioned between first fixing member 145 and first fixing plate 141. This structure allows spherical gasket 147 to adapt to the floating motion of first floating plate 142 in all directions. In other words, in this embodiment, the first floating plate 142 can drive the connector 15 to float at least in the vertical direction through the rubber sleeve; through the shape and setting position of the spherical gasket 147, the first floating plate 142 is floating in the plane where the first floating plate 142 is located and in various directions of the vertical plane, thereby increasing the floating range of the first floating plate 142, and then compensating for the deviation that occurs when the connecting device 1 and the battery pack 20 are aligned, thereby improving the accuracy of the connecting device 1 and the battery pack 20 during the alignment process.

[0100] In another embodiment, see Figures 8 to 11 For better understanding, the connection device 1 also includes a second floating unit 16, which is disposed between the connection mechanism 13 and the first floating unit 14. The second floating unit 16 at least causes the connection mechanism 13 to float in its direction of movement. Specifically, the second floating unit 16 is able to float in the direction of movement, further increasing the floating range of the connection mechanism 13. This further prevents hard contact between the connection mechanism 13 and the battery pack 20 during the plug-in connection process, which could damage the connector 15 or the battery pack, thereby increasing the service life of both. In other words, with this structural form, both the first floating unit 14 and the second floating unit 16 can cause the connector 15 to float in the vertical direction, thereby increasing the vertical floating range of the connector 15.

[0101] like Figure 8 and Figure 9As shown, in this embodiment, the second floating unit 16 includes a second floating plate 161 and a second elastic member 162. The second elastic member 162 is disposed between the first floating plate 142 and the second floating plate 161. The connecting mechanism 13 is connected to the side of the second floating plate 161 facing away from the second elastic member 162. The second elastic member 162 is offset from the first elastic member 143 and extends vertically with corresponding elastic force directions. Specifically, the second elastic member 162 is disposed between the first floating plate 142 and the second floating plate 161, and the elastic force of the second elastic member 162 is in the vertical direction, allowing the second floating plate 161 to move vertically toward or away from the first floating plate 142. In other words, the first floating plate 142 and the second elastic member 162 enable the second floating plate 161 to float in the direction of movement, thereby causing the connector 15 on the connecting mechanism 13 to float in the direction of movement. This prevents hard contact between the connecting device 1 and the battery pack 20 during insertion and removal, which could damage the connector 15 or the battery pack 20, thereby increasing the service life of both. Furthermore, with this structural arrangement, the second elastic member 162 and the first elastic member 143 are staggered, preventing interference between the second elastic member 162 and the first elastic member 143 during connection, thereby improving the stability and reliability of the connection between the first elastic member 143 and the second elastic member 162.

[0102] The second elastic member 162 is a spring. The second floating unit 16 also includes a second connecting member 163 for connecting the second floating plate 161 and the first floating plate 142. The spring is located between the second floating plate 161 and the first floating plate 142 and is mounted on the second connecting member 163. Specifically, the second connecting member 163 connects the first floating plate 142 and the second floating plate 161. With this structure, the elastic deformation of the spring enables the second floating plate 161 to float vertically, thereby enabling the connector 15 to float vertically. Furthermore, the spring is mounted on the second connecting member 163, which prevents interference between the spring and the second connecting member 163, improving the stability of the spring and the second connecting member 163. Furthermore, this structure enhances the compactness of the second floating unit 16.

[0103] It should be specified that, Figure 9 As shown, in this embodiment, the second floating plates 161 are each provided with a third weight-reducing hole 164 , thereby facilitating the reduction of the weight of the second floating unit 16 , and further facilitating the reduction of the weight of the connecting device 1 .

[0104] In addition, in this embodiment, in addition to deforming in the direction of the elastic force, the spring can also produce slight deformations in other directions, such as deformation and floating in various directions within a plane perpendicular to the vertical direction, so that the second floating plate 161 can float in multiple directions, thereby increasing the floating range of the second floating plate 161.

[0105] like Figures 8 to 14 As shown, the connector 15 may have the following embodiments: in a first embodiment, the connector 15 includes an electrical connector 151; in a second embodiment, the connector 15 includes a liquid-cooling connector 152; and in a third embodiment, the connector 15 includes both the electrical connector 151 and the liquid-cooling connector 152. In this embodiment, the connector 15 includes both the electrical connector 151 and the liquid-cooling connector 152. In other embodiments, the specific form of the connector 15 is not limited.

[0106] like Figures 8 to 11 As shown, the connecting mechanism 13 also includes a mounting plate 131 and a third elastic member 132. The two ends of the third elastic member 132 are respectively connected to the mounting plate 131 and the first floating plate 142 of the first floating unit 14 or the second floating plate 161 of the second floating unit 16. Only an electrical connector 151 can be set on the mounting plate 131, and only a liquid cooling connector 152 can be set on the mounting plate 131. The mounting plate 131 can also be provided with an electrical connector 151 and a liquid cooling connector 152. The following embodiments can also be used for the connection between the electrical connector 151 and the liquid cooling connector 152. In a first embodiment, the electrical connector 151 is connected to the mounting plate 131 through the third elastic member 132, and the mounting plate 131 is connected to the first floating plate 142 or the second floating plate 161. In a second embodiment, the liquid cooling connector 152 is connected to the mounting plate 131 through the third elastic member 132, and the mounting plate 131 is connected to the first floating plate 142 or the second floating plate 161. In a third embodiment, both the electrical connector 151 and the liquid cooling connector 152 are connected to the mounting plate 131 using the third elastic member 132, and the mounting plate 131 is connected to the first floating plate 142 or the second floating plate 161. It should be noted that when the electrical connector 151 and / or the liquid cooling connector 152 are connected to the first floating plate 142, it means that the structure only includes the first floating unit 14 and does not include the second floating unit 16; and when the electrical connector 151 and / or the liquid cooling connector 152 are connected to the first floating plate 142, it means that the structure includes both the first floating unit 14 and the second floating unit 16.

[0107] In specific use, for the liquid cooling connection device 200, such as Figures 1 to 4As shown, the two ends of the third elastic member 132 are connected to the mounting plate 131 and the second floating plate 161 respectively, and a liquid cooling connector 152 is provided on the mounting plate 131, so that the mounting plate 131 can move toward or away from the second floating plate 161 in the vertical direction, thereby driving the liquid cooling connector 152 to float in the vertical direction. Figures 5 to 7 As shown, the two ends of the third elastic member (not shown) are respectively connected to the electrical connector 151 and the mounting plate 131, and the mounting plate 131 is connected to the first floating plate 142. If there are multiple first floating plates 142 and first elastic members 143, the first floating plates 142 and first elastic members 143 are connected one by one. In this embodiment, there are four first elastic members 143 and four first floating plates 142, and the four first elastic members 143 are arranged around the first mounting plate 131, thereby improving the stability and reliability of the connection between the first fixed plate 141 and the first floating plate 142, and further improving the stability and reliability of the first floating plate 142 in the vertical direction, which is beneficial to the stability and reliability of the electrical connector 151 in the vertical direction. In other embodiments, the electrical connector 151 and the liquid cooling connector 152 can also adopt other connection methods, which are not limited here.

[0108] In addition, in this embodiment, in order to improve the compactness of the structure of the electrical floating connection device 100 and to increase the service life of the third elastic member (not shown in the figure), it is preferred that an opening accommodating cavity is provided inside the mounting plate 131, the third elastic member is arranged in the accommodating cavity, and the electrical connector 151 is connected to the third elastic member in the accommodating cavity through the opening. Figures 8 to 14 As shown, the movable unit 12 includes a sliding member 121 and a guide rail 122 that slidably cooperates with the sliding member 121. One of the sliding member 121 and the guide rail 122 is disposed on the base 11, and the other is connected to the first floating unit 14. Specifically, the sliding member 121 defines a receiving cavity on one side facing the guide rail 122. The guide rail 122 is accommodated within the receiving cavity and is slidably connected to the inner wall of the receiving cavity, thereby improving the compactness of the movable unit 12. With this structure, the sliding member 121 and the guide rail 122 cooperate to guide the movement of the first floating unit 14 while improving the stability and reliability of the movement of the sliding member 121. Furthermore, the cooperation between the sliding member 121 and the guide rail 122 reduces the friction of the sliding member 121.

[0109] In this embodiment, the slider 121 is connected to the first floating unit 14, and the guide rail 122 is connected to the base 11. In other embodiments, the slider 121 may be connected to the base 11, and the guide rail 122 may be connected to the first floating unit 14. Furthermore, in this embodiment, there are two sliders 121 and two guide rails 122, each corresponding to the other. The two sliders 121 are symmetrically arranged along the length of the first floating unit 14.

[0110] See also Figures 8 to 14 For better understanding, the mobile unit 12 further includes a sliding plate 123, with the slider 121 fixed to one side of the sliding plate 123. The other side of the sliding plate 123 is connected to the first floating unit 14. The connecting device 1 further includes a detection unit 17, which is used to detect the position of the sliding plate 123 to confirm the connection status of the connector 15. Specifically, the connection between the slider 121 and the first floating unit 14 is achieved via the sliding plate 123. Furthermore, with this structure, the detection unit 17 can accurately determine whether the connector 15 is connected to the battery pack, avoiding incorrect or incomplete connections and improving the accuracy of the insertion of the connector 15 into the battery pack 20.

[0111] In this embodiment, the sliding plate 123 extends along the length direction of the first floating unit 14 , and the two sliding members 121 are symmetrically arranged in the extending direction of the sliding members 121 .

[0112] like Figures 8 to 14 As shown, the detection unit 17 includes a sensing member 171 and a matching member 172, one of the sensing member 171 and the matching member 172 is arranged on the base 11, and the other is arranged on the sliding plate 123; in this embodiment, the sensing member 171 includes two sensing members 171, and the two sensing members 171 are respectively arranged at both ends of the base 11 in the vertical direction to correspond to the front position and the rear position respectively, and the matching member 172 is correspondingly arranged on the sliding plate 123. When the sliding plate 123 moves in the vertical direction, it drives the matching member 172 to the front position or the rear position to control the first floating unit 14 to no longer move forward or backward. With this structure, when the currently positioned sensing member 171 senses the matching member 172, it indicates that the sliding plate 123 has driven the connecting mechanism 13 to a position where it docks with the battery pack 20 and has achieved docking with the battery pack 20. When the later positioned sensing member 171 senses the matching member 172, it indicates that the sliding plate 123 has driven the connecting mechanism 13 to a position where it disengages from the battery pack 20 and does not interfere with the entry and exit of the battery pack 20. Thus, the arrangement of the sensing member 171 and the matching member 172 effectively controls the movement of the sliding plate 123, ensuring both docking with the battery pack 20 and facilitating its entry and exit. This improves accessibility for docking with the battery pack 20 and the safety of its entry and exit.

[0113] It should be noted that, in actual use, the front position corresponds to the position where the connector 15 on the connecting device 1 and the connector on the battery pack 20 are plugged in, and the rear position corresponds to the position where the connector 15 on the connecting device 1 and the connector on the battery pack 20 are disconnected. In other embodiments, the settings of the front position and the rear position can be adjusted according to actual needs, and are not specifically defined herein.

[0114] 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 protection 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 protection of the present invention.

Claims

1. A charging stand having at least one charging compartment for accommodating a battery pack and docking the battery pack's interface through a connecting device of the charging compartment to achieve charging, characterized in that: The charging stand also includes a positioning mechanism, which is arranged in the charging compartment. The specific position of the positioning mechanism in the charging compartment is set to: the positioning mechanism can contact and position with the lower surface of the battery pack placed in the charging compartment to constrain the horizontal position of the battery pack.

2. The charging stand according to claim 1, wherein: The positioning mechanism includes a connecting part and a positioning part, one end of the connecting part is connected to the main body of the charging stand, and the other end of the connecting part extends along the direction of taking and placing the battery pack. A plurality of positioning parts are provided in the same charging compartment, and the plurality of positioning parts are arranged above the connecting part at intervals along the direction of taking and placing the battery pack and cooperate with the positioning holes of the battery pack.

3. The charging stand according to claim 2, wherein: Along a direction perpendicular to the taking and placing direction, the connecting portion is arranged at a middle position of the charging compartment and is staggered with an extending mechanism of a palletizer for taking and placing the battery pack.

4. The charging stand according to claim 2, wherein: The height of the positioning portion in the vertical direction is adjustable and the heights of multiple positioning portions in the same charging compartment are consistent.

5. The charging stand according to claim 2, wherein: The positioning part includes a positioning pin and a connecting rod connected to the positioning pin. The connecting part is provided with a through hole corresponding to the connecting rod. One end of the connecting rod is connected to the positioning pin through the through hole so that the positioning pin is fixed above the connecting part. The connecting rod can drive the positioning pin to move up and down.

6. The charging stand according to claim 5, wherein: The positioning mechanism also includes a boss arranged on the top of the connecting part and a locking piece arranged on the side of the connecting part opposite to the boss. The positioning pin is arranged on the boss, the connecting rod passes through the boss and is connected to the positioning pin, and the locking piece is sleeved on the connecting rod and cooperates with the boss to clamp the two opposite sides of the connecting part.

7. The charging stand according to claim 6, wherein: A threaded connecting hole is provided at the axis of the locating pin, the connecting rod is a bolt, and the locking piece is a nut. The nut is arranged to always fit on the side surface of the connecting portion away from the boss so that when the bolt is rotated, the locating pin moves downward or upward relative to the boss in the vertical direction.

8. The charging stand according to claim 6, wherein: The positioning pin includes a guide portion, which is located at the end of the positioning pin away from the boss. The guide portion is configured to have a cross-sectional area gradually increasing from top to bottom to guide the positioning portion to cooperate with the inner side wall of the positioning hole.

9. The charging stand according to claim 3, wherein: The charging rack includes a frame body and an auxiliary beam extending in a vertical direction. At least the upper end of the auxiliary beam is connected to the frame body and is located on the side of the frame body away from the entry and exit of the battery pack. Each of the connecting parts located in different charging compartments is connected to the auxiliary beam through a bottom plate. Each of the connecting parts also includes a plurality of reinforcing ribs, and the plurality of reinforcing ribs are respectively arranged on the outer peripheral side of the corresponding connecting part and connected to the bottom plate.

10. The charging stand according to claim 9, wherein: The auxiliary beam is arranged in the middle position of the charging compartment along a direction perpendicular to the picking and placing direction. The charging rack also includes a plurality of cross beams connected between the auxiliary beam and the frame body. The plurality of cross beams are arranged at intervals along the vertical direction and are located in different charging compartments. An avoidance portion is provided on the cross beam to accommodate the distal end of the extending mechanism when the extending mechanism is extended into the charging compartment.

11. The charging stand according to claim 10, wherein: The avoidance portion is a groove formed by being depressed downward from the top of the beam or being depressed upward from the bottom of the beam.

12. The charging stand according to any one of claims 1 to 11, wherein: The connecting device includes a base, a movable unit, a connecting mechanism and a first floating unit. The connecting mechanism is connected to the first floating unit. The connecting mechanism has a connector that can be plugged into the battery pack. The movable unit is used to drive the first floating unit to move in a vertical direction on the base so that the connector is plugged into the battery pack. The first floating unit at least drives the connecting mechanism to float in its moving direction.

13. The charging stand according to claim 12, wherein: The connector includes an electrical connector and / or a liquid cooling connector. The connecting mechanism also includes a mounting plate connected to the first floating unit. The electrical connector and / or the liquid cooling connector is arranged on the mounting plate.

14. The charging stand according to claim 12, wherein: The connecting device further includes a second floating unit, which is disposed between the connecting mechanism and the first floating unit. The second floating unit at least drives the connecting mechanism to float in its moving direction.

15. The charging stand according to claim 14, wherein: The connector includes an electrical connector and / or a liquid cooling connector. The connecting mechanism also includes a mounting plate connected to the second floating unit. The electrical connector and / or the liquid cooling connector is arranged on the mounting plate.

16. The charging stand according to claim 12, wherein: The moving unit includes a sliding member and a guide rail slidably matched with the sliding member. One of the sliding member and the guide rail is arranged on the base, and the other is connected to the first floating unit.

17. The charging stand according to claim 16, wherein: The moving unit also includes a sliding plate, the sliding member is fixed to one side of the sliding plate, and the other side of the sliding plate is connected to the first floating unit. The connecting device also includes a detection unit, which is used to detect the position of the sliding plate to confirm the connection status of the connector; and / or, the detection unit includes a sensing member and a matching member, one of the sensing member and the matching member is arranged on the base, and the other is arranged on the sliding plate.

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