Battery cabinet combination with automatic charging function

Abstract

The application discloses a battery cabinet combination with an automatic charging function, which comprises a battery replacing cabinet body and a battery box, the battery replacing cabinet body is provided with a battery compartment for accommodating the battery box, the battery box is provided with more than one lock tongue and a driving mechanism for driving the lock tongue to stretch and retract, the inner wall of the battery compartment is provided with more than one groove for inserting the end of the lock tongue, the top of the battery box is provided with a charging socket, the battery compartment is hingedly connected with a compartment door, the inner side of the compartment door is fixed with a box body, the side of the box body away from the compartment door is the bottom of the box body, the side of the box body on the compartment door is the top of the box body, the plane where the bottom of the box body is located and the plane where the compartment door is located form an acute angle at the opening side of the compartment door, the box body is provided with a plug positioning plate, the plug positioning plate is provided with a charging plug for inserting the charging socket, and at least two groups of springs are connected between the plug positioning plate and the top of the box body. In the application, the charging and discharging can be realized by opening and closing the compartment door, which is convenient and fast and has low investment cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of battery cabinets, in particular to a battery cabinet combination with automatic charging function. BACKGROUND

[0002] With the continuous development of new energy technology, the popularity rate of electric bicycles is getting higher and higher. Batteries are usually installed on electric bicycles to provide energy for electric bicycles. In order to meet the use demand of people for flexible charging of batteries of electric vehicles, battery replacement cabinets have emerged.

[0003] The battery replacement cabinet is a device for providing charged batteries for users. It has an appearance similar to a storage cabinet and is provided with a plurality of battery compartments. Each battery compartment stores one battery. The battery to be charged is placed in the battery compartment, and the battery can be automatically charged. Electric vehicles can use battery replacement cabinets to replace batteries, so that electric vehicles do not need to wait for a long time to charge. When using the battery replacement cabinet, the user opens the door of the battery compartment, takes out the fully charged battery from the battery compartment, and places the battery to be charged in the battery compartment for charging.

[0004] Generally, the battery is provided with a charging socket, and the battery replacement cabinet is provided with a charging plug. The charging plug and the charging socket are connected, and the battery can be charged.

[0005] The existing battery replacement cabinet usually sets the charging plug inside the battery compartment (i.e. at the bottom of the battery compartment). When replacing the battery, the user needs to insert the battery into the battery compartment and push the battery to insert the plug into the charging socket at the bottom of the battery, so that the battery can start charging. This charging mode requires a corresponding charging socket at the bottom of the battery. However, if the battery charging socket is provided at the bottom of the battery, the charging plug connected to the battery charging socket is easy to fall off due to the bumping of the vehicle when the battery is used in the electric vehicle. Therefore, it is generally necessary to additionally provide a charging socket at the top of the battery for connection and use by the electric vehicle. In addition, the connection between the charging plug and the charging socket is often not firm and unstable.

[0006] Some battery replacement cabinets do not set the charging plug inside the charging compartment, but instead draw a charging line from the battery replacement cabinet to connect the charging plug. At this time, only a corresponding charging socket needs to be provided at the top of the battery to complete the charging. However, the user still needs to insert the charging plug into the charging socket, and the user is easy to pull and break the charging line during charging, which poses a safety risk.

[0007] Patent No. CN114268079B discloses an "intelligent battery replacement cabinet system". In this patent, the charging plug is driven by a displacement assembly to plug in. However, to implement the technology in this patent, the investment cost is quite high, and a series of supporting devices such as an optical camera mechanism and a control system are required. SUMMARY

[0008] The application aims to provide a battery cabinet combination with automatic charging function.

[0009] The application has the advantages that the battery charging and discharging can be realized by opening the cabinet door, which is convenient and low in cost.

[0010] To achieve the above-mentioned application purposes, the technical scheme of the application is as follows:

[0011] The application discloses a battery cabinet combination with automatic charging function, which comprises a battery replacing cabinet body and a battery box.

[0012] The battery box is provided with one or more than one locking tongue and a driving mechanism for driving the locking tongue to extend and retract, and the inner wall of the battery cabinet is provided with one or more than one groove for inserting the end of the locking tongue; the top of the battery box is provided with a charging socket.

[0013] The battery cabinet is hingedly connected with a cabinet door, the inner side of the cabinet door is fixed with a box body, the side of the box body away from the cabinet door is the bottom of the box body, the side of the box body near the cabinet door is the top of the box body, the plane where the bottom of the box body is located and the plane where the cabinet door is located form an acute angle towards the opening side of the cabinet door; the box body is provided with a plug positioning plate, the plug positioning plate is provided with a charging plug for inserting the charging socket, and the bottom of the box body is provided with a through hole for extending the charging plug; at least two groups of springs are connected between the plug positioning plate and the top of the box body, at least one group of springs is located between the through hole and the hinge side of the cabinet door, and at least another group of springs is located between the through hole and the opening side of the cabinet door.

[0014] Further, the battery box comprises a battery box body and a battery box cover, the battery box cover is provided with one or more than one locking tongue cover plate, the locking tongue cover plate and the battery box cover form a locking tongue cavity, and the locking tongue cover plate and the battery box cover are connected by screws; the locking tongue is located in the locking tongue cavity, the wall of the locking tongue cavity is provided with a communication hole for the locking tongue to extend and retract and communicate with the outside; and the driving mechanism is located on the locking tongue cover plate.

[0015] Further, the driving mechanism comprises a rotating pull rod, a plurality of first springs are arranged between the end of the locking tongue away from the communication hole and the locking tongue cavity, the arrangement direction of the first springs is consistent with the extension direction of the locking tongue, the wall of the locking tongue cavity is provided with an operation hole, the operation hole is provided with a pushing assembly for driving the rotating pull rod to rotate, and the locking tongue is provided with a clamping plate for driving the locking tongue to extend and retract when the rotating pull rod rotates. The driving is more convenient.

[0016] Further, the rotating pull rod is in a 7-shaped structure, the battery box cover is provided with a fixed column for the rotating of the rotating pull rod; the lock tongue is internally provided with a rotating cavity communicated with the operation hole, the clamping plate is located in the rotating cavity; the rotating cavity is further provided with a limiting block for limiting the pushing end of the rotating pull rod; the lock tongue is provided with a notch for accommodating the first spring, and the cavity wall of the lock tongue is provided with a limiting column for limiting the first spring. The rotating pull rod and the clamping plate are located in the rotating cavity, and the operation is more convenient and labor-saving. The notch and the limiting column are arranged, so that the spring is not easy to displace, and is movably arranged and easy to replace.

[0017] Further, the lock tongue cover plate has two, the pushing assembly is a handle provided on the two lock tongue cover plates respectively at two ends; the lock tongue cover plate and the handle end are connected through a rotating shaft, and when the handle end is lifted, the handle end is inserted into the rotating cavity through the operation hole to drive the rotating pull rod to rotate. When the handle is lifted, the end of the handle is just turned into the operation hole, the rotating pull rod is pushed, and the clamping plate pulls the lock tongue back into the lock tongue cavity, and the battery box can be lifted by the handle. When the battery box needs to be placed, the handle is folded, the handle end is just turned out of the operation hole, and after the rotating pull rod is not pushed, the elastic force of the first spring pushes the end of the lock tongue out of the through hole.

[0018] Further, the handle is in a U-shaped structure, the handle includes two side rods and a bottom rod, one side rod or both side rods are provided with a channel parallel to the side rod, the channel is provided with a second spring, the second spring is provided with a plug for plugging the second spring away from the lock tongue cover plate, the second spring is provided with a rotation-stopping movable rod at one end of the lock tongue cover plate, the rotation-stopping movable rod is divided into three sections, from one end to the other end, the three sections are a first necked section, a convex section and a second necked section, the second spring is sleeved on the first necked section, the channel is provided with a channel necked section at one end of the lock tongue cover plate, the second necked section is inserted into the channel necked section, the second necked section can extend out of the channel at one end, and the free end of the second necked section is a circular arc surface; the convex section has a cross-sectional dimension slightly larger than that of the channel necked section; the convex section is provided with a rotation-stopping column, one side of the channel is provided with a moving hole for the extension of the rotation-stopping column and parallel to the length direction of the channel; the lock tongue cover plate is provided with a convex portion, and the side surface and the top of the convex portion are provided with notches for limiting the extension end of the second necked section. The two notches are convenient for locking the handle when the handle is lifted and folded. The handle can be lifted or folded by slightly moving the rotation-stopping column; the free end of the second necked section is a circular arc surface, which causes less damage to the lock tongue cover plate.

[0019] Further, the box body bottom at the warehouse door hinged side is provided with a bending surface bent slightly away from the box body top side; the angle of the acute angle formed by the plane where the box body bottom is located and the plane where the warehouse door is located towards the warehouse door opening side is set in the range of 13-17°, when closing the warehouse door, the charging plug moves towards the battery charging socket in the battery compartment with the closing of the warehouse door, the plug positioning plate is limited by the plane where the box body bottom is located, the inside spring is compressed, and the charging plug changes the direction of the advancing track by 13-17° when it is about to contact the charging socket, so that the charging plug can adjust the direction to just insert into the socket for battery charging; the angle of the acute angle formed by the plane where the bending surface is located and the plane where the warehouse door is located towards the warehouse door opening side is 7-10°. The angle of the acute angle formed by the plane where the bending surface is located and the plane where the warehouse door is located towards the warehouse door opening side is set in the range of 7-10°, when opening the warehouse door, the locking mechanism of the warehouse door and the battery compartment is opened, the warehouse door is popped out under the action of spring elastic deformation, the plug positioning plate is limited by the plane where the bending surface is located, and the warehouse door can be opened by an angle of 7-10°, which is suitable for further opening the warehouse door.

[0020] Further, the plug positioning plate and the box body top are connected by four groups of springs, two groups of springs are located between the through hole and the warehouse door hinged side, and the other two groups of springs are located between the through hole and the warehouse door hinged side; the spring is a tower spring, and the plug positioning plate and the box body top are both provided with a tower spring limiting column for limiting the tower spring. The springs are more evenly arranged, and the warehouse door is more stable when opening and closing.

[0021] Further, the plug positioning plate is provided with a first protrusion towards the box body top side, and the box body top is provided with a second protrusion corresponding to the first protrusion. When closing the warehouse door, the second protrusion presses the charging plug against the first protrusion, which can exert a pressure on the charging plug to ensure that the plug can be better inserted into the charging socket.

[0022] Further, the box body inner side is provided with a limiting rib, the limiting rib is trapezoidal or triangular, the width of the limiting rib gradually decreases from the bottom of the box body to the top of the box body; the box body comprises a fixed plate and a box cover, the top of the box body is the fixed plate, the edge of the fixed plate is provided with a protrusion, the box cover is provided with a insertion hole suitable for the protrusion; the both sides of the box cover are provided with a folding edge, the folding edge is provided with a first fixing hole, the corresponding position of the door is provided with a second fixing hole, the connecting piece passes through the first fixing hole and the second fixing hole to fix the box cover on the door. When the plug positioning plate is located at the bottom of the box body, the limiting rib fixes the position of the plug positioning plate in the box body, so that the charging plug can be aligned with the insertion hole; the plug positioning plate is not completely limited at the top of the box body, and a certain movement space is given to the plug positioning plate, so that the plug positioning plate can be conveniently switched from arc movement to linear movement. The connecting piece passes through the first fixing hole and the second fixing hole to fix the box cover on the door, so that the box body cannot be displaced, and the charging plug cannot be aligned with the insertion hole.

[0023] The beneficial effects of the present application are:

[0024] In the present application, manual plugging is not required, and the cost of realizing the function is relatively low.

[0025] In the present application, the telescopic lock tongue is used to fix the battery box, and the lock tongue can be retracted when the battery box is taken out.

[0026] In the present application, the lifting and folding of the handle are used to control the extension and retraction of the lock tongue, and the handle can be used to lift the battery box.

[0027] In the present application, the handle can be limited during lifting and folding, so that the handle is not shaken during jolting.

[0028] In the present application, a bending surface is arranged at the bottom of the box body, so that the spring between the through hole and the hinge side of the door has a certain springing space when the door is opened, and the opening of the door is not affected by being squeezed too much. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the present application.

[0030] Figure 2 It is a structural schematic diagram of the door and the box body.

[0031] Figure 3 It is a structural schematic diagram of the door and the box body from another angle.

[0032] Figure 4 It is a sectional view of the door and the box body.

[0033] Figure 5 It is a structural schematic diagram of the box body.

[0034] Figure 6 Figure 1 is a schematic diagram of a fixed plate structure.

[0035] Figure 7 Figure 2 is a schematic diagram of a structure at the top of a battery box.

[0036] Figure 8 Figure 3 is an exploded view of a battery box.

[0037] Figure 9 Figure 4 is a schematic diagram of a cross section at a lock tongue insertion groove.

[0038] Figure 10 Figure 5 is a schematic diagram of a cross section at a lock tongue cavity.

[0039] Figure 11 Figure 6 is a schematic diagram of a cross section at a handle passage.

[0040] Figure 12 Figure 7 is a schematic diagram of a cross section at a rotating pull rod. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings.

[0042] Embodiment 1: as shown in Figure 1 , 2 , 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, a battery cabinet combination with automatic charging function, comprising a battery replacement cabinet body 1 and a battery box 2, the battery replacement cabinet body 1 is provided with a battery compartment 1.1 for accommodating the battery box 2;

[0043] The battery compartment 1.1 is hinged with a compartment door 1.2, the inner side of the compartment door 1.2 is fixed with a box body 1.3, the side of the box body 1.3 away from the compartment door 1.2 is the bottom of the box body, the side of the box body 1.3 at the compartment door 1.1 is the top of the box body, the plane where the bottom of the box body is located and the plane where the compartment door 1.1 is located form an acute angle at the opening side of the compartment door; a plug positioning plate 1.4 is arranged in the box body 1.3, the plug positioning plate 1.4 is provided with a charging plug 1.5 for inserting into a charging socket 2.3, a through hole 1.31 for extending the charging plug 1.5 is arranged in the bottom of the box body; at least two groups of springs 1.6 are connected between the plug positioning plate 1.4 and the top of the box body 1.3, and at least one group of springs 1.6 is located between the through hole 1.31 and the hinge side of the compartment door 1.2, and at least another group of springs 1.6 is located between the through hole 1.31 and the opening side of the compartment door 1.2. The bottom of the box body is provided with a bending surface 1.32 which is slightly bent away from the side of the top of the box body at the hinge side of the compartment door 1.2; the angle of the acute angle is 13-17°, and the angle formed by the plane where the bending surface 1.32 is located and the plane where the compartment door 1.2 is located at the opening side of the compartment door 1.2 is 7-10°. Four groups of springs 1.6 are connected between the plug positioning plate 1.4 and the top of the box body, two groups of springs 1.6 are located between the through hole 1.31 and the hinge side of the compartment door 1.2, and the other two groups of springs 1.6 are located between the through hole 1.31 and the hinge side of the compartment door 1.2; the spring 1.6 is a tower spring, and the plug positioning plate 1.4 and the top of the box body 1.3 are both provided with a tower spring limiting column 1.7 for limiting the tower spring. The plug positioning plate 1.4 is provided with a first protrusion 1.41 towards the side of the top of the box body, and the top of the box body is provided with a second protrusion 1.33 corresponding to the first protrusion 1.41. The inner side of the box body 1.3 is provided with a limiting rib 1.34, the limiting rib 1.34 is trapezoidal or triangular, and the width of the limiting rib 1.34 gradually decreases from the bottom of the box body to the top of the box body; the box body 1.3 includes a fixed plate 1.35 and a box cover 1.36, the top of the box body is the fixed plate 1.35, the edge of the fixed plate is provided with a protrusion 1.351, and the box cover 1.36 is provided with a jack 1.361 suitable for inserting the protrusion 1.351; the two sides of the box cover 1.36 are provided with a folding edge 1.362, the folding edge 1.362 is provided with a first fixing hole 1.3621, and the corresponding position of the compartment door 1.2 is provided with a second fixing hole, and the connecting piece passes through the first fixing hole 1.3621 and the second fixing hole to fix the box cover 1.36 on the compartment door 1.2. The charging plug 1.5 is connected with a power cord 1.51, and the box body 1.3 is provided with an extension hole 1.37 for extending the power cord.

[0044] The battery box 2 is provided with more than one lock tongue 2.1 and a driving mechanism for driving the lock tongue 2.1 to extend and retract, and the inner wall of the battery compartment 1.1 is provided with more than one groove 1.11 for inserting the end of the lock tongue 2.1; the top of the battery box 2 is provided with a charging socket 2.3; the battery box 2 comprises a battery box body 2.4 and a battery box cover 2.5, the battery box cover 2.5 is provided with more than one lock tongue cover plate 2.6, the lock tongue cover plate 2.6 and the battery box cover 2.5 form a lock tongue cavity 2.7, and the lock tongue cover plate 2.6 and the battery box cover 2.5 are connected by screws; the lock tongue 2.1 is located in the lock tongue cavity 2.7, and the wall of the lock tongue cavity 2.7 is provided with a communication hole 2.71 for the lock tongue 2.1 to extend and retract and communicate with the outside; and the driving mechanism is located on the lock tongue cover plate 2.6.

[0045] The driving mechanism comprises a rotating pull rod 2.21, a plurality of first springs 2.22 arranged between the lock tongue 2.1 and the lock tongue cavity 2.7 away from the communication hole 2.71, the arrangement direction of the first spring 2.22 being consistent with the extension direction of the lock tongue 2.1, an operation hole 2.72 arranged on the wall of the lock tongue cavity 2.7, a pushing assembly 2.23 arranged at the operation hole 2.72 to drive the rotating pull rod 2.21 to rotate, and a clamping plate 2.11 arranged on the lock tongue 2.1 to drive the lock tongue 2.1 to extend when the rotating pull rod 2.21 rotates. The rotating pull rod 2.21 is in a 7-shaped structure, and the battery box cover 2.5 is provided with a fixing column 2.51 for the rotating pull rod 2.21 to rotate; the lock tongue 2.1 is provided with a rotating cavity 2.12 in communication with the operation hole 2.72, and the clamping plate 2.11 is located in the rotating cavity 2.12; the rotating cavity 2.12 is further provided with a limiting block 2.13 for limiting the pushing end of the rotating pull rod 2.21; the lock tongue 2.1 is provided with a notch 2.14 for accommodating the first spring 2.22, and the wall of the lock tongue cavity 2.7 is provided with a limiting column 2.73 for limiting the first spring 2.22. The lock tongue cover plate 2.6 has two, the pushing assembly 2.23 is a handle arranged at two ends of the two lock tongue cover plates 2.6 respectively; the lock tongue cover plate 2.6 and the handle end are connected through a rotating shaft 2.8, and when the handle end is lifted, it is inserted into the rotating cavity 2.12 through the operation hole 2.72 to drive the rotating pull rod 2.21 to rotate. The handle is in a U-shaped structure, and the handle comprises two side rods 2.231 and a bottom rod 2.232, one side rod 2.231 or both side rods 2.231 are provided with a channel 2.2311 parallel to the side rod 2.231, a second spring 2.233 is arranged in the channel 2.2311, the second spring 2.233 is provided with a plug 2.234 for plugging the second spring 2.233 away from one side of the lock tongue cover plate 2.6, the second spring 2.233 is provided with a rotation-stopping movable rod 2.235 at one end of the lock tongue cover plate 2.6, the rotation-stopping movable rod 2.235 is divided into three sections, from one end to the other end, the three sections are a first necked section 2.2351, a protruding section 2.2352 and a second necked section 2.2353, the second spring 2.233 is sleeved on the first necked section 2.2351, the channel 2.233 is provided with a channel necked section 2.2331 at one end of the lock tongue cover plate 2.6, the second necked section 2.2353 is inserted into the channel necked section 2.2331, one end of the second necked section 2.2331 can extend out of the channel 2.2311, and the free end of the second necked section 2.2353 is a circular arc surface; the cross-sectional size of the protruding section 2.2352 is slightly larger than that of the channel necked section 2.2331; the protruding section 2.2352 is provided with a rotation-stopping column 2.236, and one side of the channel 2.233 is provided with a moving hole 2.2332 for the rotation-stopping column 2.236 to extend out, the length direction of the moving hole 2.2332 being parallel to the length direction of the channel 2.233; the lock tongue cover plate 2.6 is provided with a protruding part 2.61, and the side surface and the top of the protruding part 2.61 are provided with notches 2.611 for limiting the extension end of the second necked section 2.2353.

[0046] Put into the battery box: the handle is folded, the end of the handle is turned out of the operating hole 2.72, and the end of the locking tongue 2.1 is pushed out of the communication hole 2.71 by the elastic force of the first spring 2.22 after the pull rod 2.21 is rotated without pulling force; the locking tongue 2.1 is inserted into the groove 1.11 on the inner wall of the battery compartment 1.1. At this time, the stop column 2.236 can be moved appropriately to make the end of the stop movable rod 2.235 move out of the notch 2.611 on the top surface of the protruding part 2.61. When the handle is folded, the end of the stop movable rod 2.235 is clamped into the notch 2.611 on the side of the protruding part 2.61 under the action of the second spring 2.233, so that the handle is limited.

[0047] Then close the door, when closing the door: the door 1.2 is rotated, and when it is rotated to a certain angle, the charging plug 1.5 contacts the charging socket 2.3 on the top of the battery box 2 placed in the battery compartment 1.1. At this time, the forward trajectory of the charging plug 1.5 changes from an arc to a straight line, the compression amount of the spring 1.6 changes, the angle of the charging plug 1.5 changes, and the charging plug 1.5 can be inserted into the charging socket 2.3. In addition, as the door 1.2 is further closed, the fixed plate 1.35 and the plug positioning plate 1.4 slowly approach, the second protrusion 4.33 presses the first protrusion 1.41 to press the charging plug 1.5 inward, ensuring that the charging plug 1.5 can be better inserted into the charging socket. When the door 1.2 is completely closed, the springs 1.6 are all in a compressed state, the charging plug 1.5 is tightly and reliably connected with the charging socket 2.3, and charging of the battery box 2 begins;

[0048] When the charging is full and the door needs to be opened: first open the locking mechanism of the door 1.2, the fixed plate 1.35 and the plug positioning plate 1.4 are separated under the action of the deformation of the spring 1.6, and the door 1.2 is popped out. In order to avoid the spring 1.6 between the through hole 1.31 and the hinge side of the door 1.2 being compressed too much and affecting the opening of the door 1.2, a bending surface 1.32 is set to give the spring 1.6 between the through hole 1.31 and the hinge side of the door 1.2 a certain space to expand. At this time, the door 1.2 is opened to a certain angle, and the user only needs to continue to pull the door 1.2 to pull out the charging plug 1.5 from the charging socket 2.3.

[0049] When the battery box is taken out after the door is opened: the end of the handle is just turned into the operation hole 2.72, the end of the handle drives the rotating pull rod 2.21, the rotating pull rod 2.21 drives the clamping plate 2.11 to pull the lock tongue 2.1 back into the lock tongue cavity 2.7, and the battery box 2 can be just lifted by the handle. When the handle is lifted, the stop column 2.236 can be appropriately moved, so that the end of the stop movable rod 2.235 is moved out of the notch 2.611 on the side of the protrusion 2.61. When the handle is turned up, under the action of the second spring 2.233, the end of the stop movable rod 2.235 is clamped into the notch 2.611 on the top surface of the protrusion 2.61, so that the handle is limited, and the battery box 2 can be taken out by lifting the handle.

[0050] The embodiments described are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present application.

Claims

1. A battery cabinet combination with automatic charging function, comprising a battery replacing cabinet and a battery box, the battery replacing cabinet is provided with a battery compartment for accommodating the battery box; characterized in that, the battery box is provided with one or more than one lock tongue and a driving mechanism for driving the lock tongue to extend and retract, the inner wall of the battery compartment is provided with one or more than one groove for inserting the end of the lock tongue; the top of the battery box is provided with a charging socket; the battery compartment is hingedly connected with a compartment door, the inner side of the compartment door is fixed with a box body, the side of the box body away from the compartment door is the bottom of the box body, the side of the box body near the compartment door is the top of the box body, the plane where the bottom of the box body is located and the plane where the compartment door is located form an acute angle towards the opening side of the compartment door, the angle of the acute angle is 13-17°; the box body is provided with a plug positioning plate, the plug positioning plate is provided with a charging plug for inserting into the charging socket, the bottom of the box body is provided with a through hole for the charging plug to extend out; at least two groups of springs are connected between the plug positioning plate and the top of the box body, and at least one group of springs is located between the through hole and the hinge side of the compartment door, and at least another group of springs is located between the through hole and the opening side of the compartment door; the side of the plug positioning plate towards the top of the box body is provided with a first protrusion, and the top of the box body is provided with a second protrusion corresponding to the first protrusion.

2. The battery cabinet combination having an automatic charging function according to claim 1, wherein, The battery box comprises a battery box body and a battery box cover, the battery box cover is provided with one or more than one lock tongue cover plate, the lock tongue cover plate and the battery box cover form a lock tongue cavity, and the lock tongue cover plate and the battery box cover are connected by screws; the lock tongue is located in the lock tongue cavity, and the wall of the lock tongue cavity is provided with a communication hole for the lock tongue to extend and retract and communicate with the outside; the driving mechanism is located on the lock tongue cover plate.

3. The battery cabinet combination having an automatic charging function according to claim 2, characterized by, The driving mechanism comprises a rotating pull rod, a plurality of first springs are arranged between the end of the lock tongue away from the communication hole and the lock tongue cavity, the arrangement direction of the first springs is consistent with the extension direction of the lock tongue, the wall of the lock tongue cavity is provided with an operation hole, the operation hole is provided with a pushing assembly for rotating the rotating pull rod, and the lock tongue is provided with a clamping plate for driving the lock tongue to extend and retract when the rotating pull rod rotates.

4. The battery cabinet combination having an automatic charging function according to claim 3, characterized by, The rotating pull rod is in a 7-shaped structure, and the battery box cover is provided with a fixed column for the rotating pull rod to rotate; the lock tongue is provided with a rotating cavity communicating with the operation hole, and the clamping plate is located in the rotating cavity; the rotating cavity is further provided with a limiting block for limiting the pushing end of the rotating pull rod; the lock tongue is provided with a recess for accommodating the first spring, and the wall of the lock tongue cavity is provided with a limiting column for limiting the first spring.

5. The battery cabinet combination having an automatic charging function according to claim 3, wherein, The lock tongue cover plate has two, the pushing assembly is a handle provided on the two lock tongue cover plates respectively; the lock tongue cover plate and the end of the handle are connected through a rotating shaft, and the handle end is inserted into the rotating cavity through the operation hole when the handle end is lifted to drive the rotating pull rod to rotate.

6. The battery cabinet combination having an automatic charging function according to claim 5, wherein, The handle is a U-shaped structure, and the handle includes two side rods and a bottom rod, wherein one side rod or both side rods is provided with a channel parallel to the side rod, the channel is provided with a second spring, the second spring is provided with a plug for plugging the second spring away from one side of the lock tongue cover plate, the second spring is provided with a rotation-stopping movable rod at one end of the lock tongue cover plate, the rotation-stopping movable rod is divided into three sections, and the three sections are a first necked section, a convex section and a second necked section from one end to the other end, the second spring is sleeved on the first necked section, the channel is provided with a channel necked section at one end of the lock tongue cover plate, the second necked section is inserted into the channel necked section, the second necked section can extend out of the channel at one end, and the free end of the second necked section is a circular arc surface; the convex section has a cross-sectional dimension slightly larger than that of the channel necked section; the convex section is provided with a rotation-stopping column, one side of the channel is provided with a moving hole for the rotation-stopping column to extend out and have a length direction parallel to the length direction of the channel; the lock tongue cover plate is provided with a convex portion, and the side surface and the top of the convex portion are provided with notches for limiting the extension end of the second necked section.

7. The battery cabinet combination having an automatic charging function according to claim 1, wherein The bottom of the box body is provided with a bending surface bent slightly away from the top side of the box body at the hinge side of the door; the included angle formed by the plane where the bending surface is located and the plane where the door is located towards the opening side of the door is 7-10°.

8. The battery cabinet combination having an automatic charging function according to claim 1, wherein, Four groups of springs are connected between the plug positioning plate and the top of the box body, two groups of springs are located between the through hole and the hinge side of the door, and the other two groups of springs are located between the through hole and the opening side of the door; the spring is a tower spring, and the tower spring limiting column is arranged on the plug positioning plate and the top of the box body for limiting the tower spring.

9. The battery cabinet combination having an automatic charging function according to claim 1, wherein, The inner side of the box body is provided with a limiting rib strip, the limiting rib strip is trapezoidal or triangular, and the width of the limiting rib strip gradually decreases from the bottom of the box body to the top of the box body; the box body includes a fixed plate and a box cover, the top of the box body is the fixed plate, the edge of the fixed plate is provided with a convex portion, and the box cover is provided with a insertion hole suitable for the insertion of the convex portion; the box cover is provided with a folding edge, a first fixing hole is formed in the folding edge, a second fixing hole is formed in the corresponding position of the door, and the connecting piece passes through the first fixing hole and the second fixing hole to fix the box cover on the door.

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