A detachable battery charging device with high connection reliability

Abstract

The present invention provides a detachable battery charging device with high connection reliability, belonging to the technical field of battery charging devices, comprising an outer shell, wherein a battery placement basket is arranged inside the outer shell; through the arranged opening and closing mechanism 1, when the charging device is not in use, a horizontal movable plate 1 can close the side vent of the outer shell, so as to prevent external dust and water vapor from entering the outer shell and affecting the operating efficiency and service life of the electrical equipment inside the charging device; when the battery is placed inside the charging device, the horizontal movable plate 1 can be driven to move during the process of the battery being moved into the charging device, and then after the battery is completely placed inside the battery placement basket, the horizontal movable plate 1 moves to the side vent with a dustproof filter screen 1, so that the outer shell is circulated with external air through the side vent, and then heat dissipation can be performed during charging, so as to prevent the internal temperature of the device from being too high and causing danger during charging.

Description

Technical Field

[0001] The invention belongs to the technical field of battery charging devices, and in particular relates to a detachable battery charging device with high connection reliability. Background Art

[0002] A removable battery charger is a charging device designed for removable batteries, which allows the user to charge the battery without connecting the entire device to a power source.

[0003] The detachable battery charging device will emit a large amount of heat when working, so the detachable battery charging device will open ventilation holes on its surface to quickly discharge the generated heat during work and avoid the damage caused by excessive internal temperature of the detachable battery charging device. However, the setting of the ventilation holes makes it easy for external dust and water vapor to enter the detachable battery charging device through the ventilation holes when the detachable battery charging device is stored. Dust accumulates on the device for a long time, which may easily lead to unstable operation of the device and affect the working efficiency of the device. At the same time, dust accumulates on the conductive parts of the electrical equipment, which may easily cause arc discharge, thereby shortening the life of the electrical equipment. Water vapor may cause the equipment to be corroded and eroded in a long-term humid environment, and even damage the insulating protective film on the surface of the control device, thereby reducing the safety performance and insulation performance of the control device, and posing a huge safety hazard to the subsequent operation of the equipment.

[0004] Therefore, we propose a detachable battery charging device with high connection reliability to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that when the detachable battery charging device is stored, dust and water vapor from the outside easily enter the detachable battery charging device through the vents. Dust accumulates on the device for a long time, which easily leads to unstable operation of the device and affects the working efficiency of the device. At the same time, dust accumulates on the conductive parts of the electrical equipment, which easily causes arc discharge, thereby shortening the life of the electrical equipment. Water vapor can cause the equipment to be corroded and eroded in a long-term humid environment, and even damage the insulating protective film on the surface of the control device, thereby reducing the safety performance and insulation performance of the control device, and bringing huge safety hazards to the subsequent operation of the equipment. A detachable battery charging device with high connection reliability is proposed.

[0006] The object of the present invention can be achieved by the following technical scheme: comprising an outer shell, wherein a battery placement basket is arranged inside the outer shell, and the bottom of the battery placement basket is fixedly connected to the inner bottom of the outer shell through a support column, the inner walls of the front and rear sides of the battery placement basket are provided with battery guide blocks, and two groups of opening and closing mechanisms are symmetrically arranged on the front and rear sides of the inner shell, the opening and closing mechanism one includes a T-shaped lifting block, and there are two T-shaped lifting blocks, and the two T-shaped lifting blocks are respectively slidably installed inside the lower part of the two rear battery guide blocks, and the two T-shaped lifting blocks are respectively A pressure plate is provided at the rear end, and a spring is provided at the lower end of the two pressure plates, the two pressure plates are fixedly connected by a connecting rod, the right lower end of the connecting rod and the rear lower end of the right pressure plate are abutted with a lever, the right upper end of the lever is hinged with a rotating plate through a hinge rod, a plug-in block is movably installed inside the upper end of the rotating plate, a connecting block is provided at the rear end of the plug-in block, a horizontally movable plate is provided on the left side of the connecting block, springs are provided at the upper and lower ends of the right side wall of the horizontally movable plate, and a dust filter is provided inside the horizontally movable plate.

[0007] As a preferred embodiment of the present invention, side vents and a movable groove one are provided inside the front and rear ends of the outer shell, and the side vents are connected with the movable groove one, the connecting block, the horizontal movable plate one and the spring two are movably installed inside the movable groove one, and the dust filter one is the same size as the side vents.

[0008] As a preferred embodiment of the present invention, a horizontal moving groove is provided on the inner walls on both the front and rear sides of the outer shell, and the horizontal moving groove is connected with the movable groove. One end of the two plug-in blocks close to the connecting block is respectively arranged inside the two horizontal moving grooves. A sliding groove is provided inside the upper ends of the two rotating plates, and one end of the two plug-in blocks close to the connecting block is movably installed inside the two sliding grooves.

[0009] As a preferred embodiment of the present invention, an opening and closing mechanism is arranged below the connecting rod, and the opening and closing mechanism includes a lower pressure block and a horizontal movable plate. Two lower pressure blocks are symmetrically arranged front and back, and the upper ends of the two lower pressure blocks are respectively connected to the lower ends in the middle of the two connecting rods. Two horizontal movable plates are symmetrically arranged left and right, and two dust-proof filters are arranged inside the two horizontal movable plates. Horizontal push rods are arranged on the front and rear sides of the two horizontal movable plates near the upper ends of the connecting rods, and the lower ends of the two lower pressure blocks are respectively hinged to the four horizontal push rods through two hinge rods.

[0010] As a preferred embodiment of the present invention, a bottom vent and a movable groove 2 are provided at the bottom of the outer shell, the two horizontal movable plates 2 are both arranged inside the movable groove 2, and the size of the dust filter 2 is the same as that of the bottom vent.

[0011] As a preferred embodiment of the present invention, a horizontal moving groove 2 is opened on the inner bottom wall of the outer shell, and four horizontal moving grooves 2 are arranged, the four horizontal moving grooves 2 are all connected with the movable groove 2, and the lower ends of the four horizontal push rods are respectively arranged inside the four horizontal moving grooves 2.

[0012] As a preferred embodiment of the present invention, an upper sealing plate and a DC output connector are provided on the left and right sides of the upper end of the outer shell, and the lower end of the DC output connector is connected to the inner part of the upper end of the outer shell through spring three, and charging modules are provided on the inner walls of the left and right sides of the outer shell, and a cooling fan is provided between the rear side wall of the outer shell and the battery placement basket.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) By setting the opening and closing mechanism 1, when the charging device is not in use, the horizontal movable plate 1 can close the side vents of the outer shell to prevent dust and water vapor from entering the outer shell and affecting the operating efficiency and service life of the electrical equipment inside the charging device. When the battery is placed in the charging device, the horizontal movable plate 1 is driven to move during the process of moving the battery into the charging device. After the battery is completely placed in the battery placement basket, the horizontal movable plate 1 moves to the side vents with the dust filter 1, so that the outer shell can circulate with the outside air through the side vents, and then the heat dissipation work can be carried out during charging to avoid the danger of excessive temperature inside the device during charging;

[0015] (2) By setting the opening and closing mechanism 2, when the charging device is not in use, the horizontal movable plate 2 can close the bottom vent of the outer shell to prevent external dust and water vapor from entering the inner part of the outer shell and affecting the operating efficiency and service life of the electrical equipment inside the charging device. When the battery is placed in the charging device, the horizontal movable plate 2 will also move synchronously. Then, after the battery is completely placed in the battery placement basket, the horizontal movable plate 2 moves to the bottom vent with the dust filter 2, so that the outer shell can circulate with the outside air through the bottom vent, further improving the heat dissipation efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the opening and closing mechanism of the present invention;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 4 It is a left-cut three-dimensional structural schematic diagram of the present invention;

[0021] Figure 5 For the present invention Figure 4 A magnified view of the structure at center A;

[0022] Figure 6 It is a schematic diagram of a top-down three-dimensional structure of the present invention;

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the charging device of the present invention when ventilated.

[0024] In the figure: 1, outer shell; 2, battery placement basket; 3, battery guide block; 4, DC output connector; 5, opening and closing mechanism 1; 501, T-shaped lifting block; 502, pressure plate; 503, spring 1; 504, lever; 505, hinged rod 1; 506, rotating plate; 507, plug-in block; 508, connecting block; 509, horizontal moving plate 1; 510, spring 2; 511, dust filter 1; 6, opening and closing mechanism 2; 6 01. Lower pressure block; 602. Articulated rod 2; 603. Horizontal push rod; 604. Horizontal movable plate 2; 605. Dust filter 2; 7. Side vents; 8. Connecting rod; 9. Bottom vents; 10. Upper sealing plate; 11. Charging module; 12. Support column; 13. Spring 3; 14. Cooling fan; 15. Slide; 16. Movable slot 1; 17. Movable slot 2; 18. Horizontal movable slot 1; 19. Horizontal movable slot 2. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Example 1: Please refer to Figure 1 - Figure 7As shown, a detachable battery charging device with high connection reliability comprises an outer shell 1, a battery placement basket 2 is arranged inside the outer shell 1, and the bottom of the battery placement basket 2 is fixedly connected to the inner bottom of the outer shell 1 through a support column 12, wherein the battery placement basket 2 is provided with through holes in the front, back, left, right and bottom, so that the air inside the outer shell 1 can flow into or out of the battery placement basket 2 through the through holes, and then the heat can be smoothly taken away during the charging process, and the setting of the support column 12 leaves a space between the bottom of the battery placement basket 2 and the inner bottom of the outer shell 1, so that the bottom of the outer shell 1 can also be ventilated with the outside, thereby improving the ventilation and cooling effect of the outer shell 1, and the inner walls of the front and rear sides of the battery placement basket 2 are provided with battery guide blocks 3, which can limit and guide the battery when the battery is placed in the battery placement basket 2, so that the battery can be smoothly and stably placed in the battery placement basket 2, which is convenient for subsequent charging;

[0027] It should be noted that a partition is provided in the middle of the battery placement basket 2 to divide the battery placement basket 2 into two battery placement cavities, so that up to two batteries can be charged. There are eight battery guide blocks 3, four of which are provided in each battery placement cavity and are respectively provided on the inner walls on the front and rear sides of the battery placement basket 2.

[0028] Two groups of opening and closing mechanisms 5 are symmetrically arranged on the front and rear sides of the outer shell 1. The opening and closing mechanism 5 includes a T-shaped lifting block 501, and two T-shaped lifting blocks 501 are arranged. The two T-shaped lifting blocks 501 are respectively slidably installed inside the lower part of the two rear battery guide blocks 3. The rear ends of the two T-shaped lifting blocks 501 are provided with a pressure plate 502, and the lower ends of the two pressure plates 502 are provided with a spring 503. The two pressure plates 502 are fixedly connected by a connecting rod 8. The right lower end of the connecting rod 8 and the rear lower end of the right pressure plate 502 are abutted with a lever 504. The setting of the connecting rod 8 makes it possible to drive the other T-shaped lifting block 501 and The pressing plate 502 moves downward, and then smoothly presses down the left end of the lever 504. The upper right end of the lever 504 is hinged with a rotating plate 506 through a hinge rod 505. A plug-in block 507 is movably installed inside the upper end of the rotating plate 506. A connecting block 508 is provided at the rear end of the plug-in block 507. A horizontal moving plate 509 is provided on the left side of the connecting block 508. Springs 510 are provided at both upper and lower ends of the right side wall of the horizontal moving plate 509. A dust filter 511 is provided inside the horizontal moving plate 509. The dust filter 511 is provided so that when the inside and outside of the outer shell 1 are ventilated, dust impurities in the outside air are blocked to prevent dust impurities from entering the inside of the outer shell 1 and affecting the use effect of the electrical equipment.

[0029] It should be noted that there are four T-shaped lifting blocks 501 in the two sets of opening and closing mechanisms 5, and the four T-shaped lifting blocks 501 are respectively arranged inside the lower ends of the four battery guide blocks 3 close to the partitions, and the lower ends of the four battery guide blocks 3 are provided with lifting grooves matching the T-shaped lifting blocks 501, so that the T-shaped lifting blocks 501 can move vertically smoothly, and then the T-shaped lifting blocks 501 can smoothly drive the pressure plate 502 to move vertically; wherein, the fulcrums of the two levers 504 are located on the left side thereof, and the two fulcrums are respectively connected to The inner walls of the front and rear sides of the outer shell 1 are connected, so that the left side of the lever 504 is a resistance arm and the right side is a power arm. At this time, when the left side of the lever 504 is pressed down by pressure, its right side can be smoothly lifted up, and then the rotating plate 506 is pushed to move through the hinge rod 505. Similarly, a fulcrum is set in the middle of the two rotating plates 506, so that when the lower end of the rotating plate 506 is pushed and rotated to the right by the hinge rod 505, its upper end will move and rotate to the left, and then drive the plug-in block 507, the connecting block 508 and the horizontal movable plate 509 to move to the right.

[0030] An opening and closing mechanism 6 is arranged below the connecting rod 8, and the opening and closing mechanism 6 includes a lower pressing block 601 and a horizontal moving plate 604. Two lower pressing blocks 601 are arranged symmetrically in front and back, and the upper ends of the two lower pressing blocks 601 are respectively connected to the lower ends in the middle of the two connecting rods 8. Two horizontal moving plates 604 are arranged symmetrically in left and right. The insides of the two horizontal moving plates 604 are both provided with dustproof filter screens 605. The two horizontal moving plates 604 are both provided with horizontal push rods 603 on the front and rear sides near the upper ends of the connecting rods 8. The lower ends of the blocks 601 are respectively hinged to the four horizontal push rods 603 through the hinge rod 2 602. Through the setting of the hinge rod 2 602, when the T-shaped lifting block 501 drives the pressing plate 502 and the connecting rod 8 to press down, the connecting rod 8 presses the pressing block 601 downward, so that the pressing block 601 pushes the horizontal push rods 603 on the left and right sides and the horizontal moving plate 2 604 horizontally away from the pressing block 601 through the hinge rod 2 602, thereby connecting the lower end of the outer shell 1 with the outside world, further improving the heat dissipation effect during charging;

[0031] It should be noted that the setting of spring 1 503 and spring 2 510 can reset the T-shaped lifting block 501 when the T-shaped lifting block 501 is not affected by external force, and then reset the horizontal moving plate 1 509 and the horizontal moving plate 2 604, so that the horizontal moving plate 1 509 and the horizontal moving plate 2 604 can seal the outer shell 1, thereby preventing external dust and water vapor from entering the inner part of the outer shell 1 and corroding and damaging the electrical components inside the outer shell 1 when the charging device is not in use.

[0032] Side vents 7 and movable grooves 16 are provided at both the front and rear ends of the outer shell 1, and the side vents 7 are connected to the movable grooves 16. The connecting block 508, the horizontal movable plate 509 and the spring 2 510 are all movably installed inside the movable grooves 16. The dust filter 511 is the same size as the side vents 7. The side vents 7 are provided so that after the battery is placed in the battery basket 2, the horizontal movable plate 509 will move horizontally with the dust filter 511, so that the dust filter 511 and the side vents 7 are on the same front and rear horizontal plane, thereby allowing the outer shell 1 to circulate air with the outside world, thereby enabling heat dissipation. The provision of the movable grooves 16 provides movable space for the connecting block 508 and the horizontal movable plate 509, so that the connecting block 508 and the horizontal movable plate 509 can smoothly move horizontally left and right. The inner walls of the front and rear sides of the outer shell 1 are provided with horizontal movable grooves 18. The horizontal moving groove 18 is connected to the movable groove 16, and one end of the two plug-in blocks 507 close to the connecting block 508 is respectively arranged inside the two horizontal moving grooves 18. The setting of the horizontal moving groove 18 provides the plug-in block 507 with a movable space, so that the plug-in block 507 can move inside the movable groove 16, and then the plug-in block 507 can smoothly drive the connecting block 508 to move horizontally left and right. The upper ends of the two rotating plates 506 are each provided with a slide groove 15, and one end of the two plug-in blocks 507 close to the connecting block 508 is respectively movably installed inside the two slide grooves 15. The setting of the slide groove 15 provides the plug-in block 507 with a movable space, so that when the rotating plate 506 rotates, the plug-in block 507 can slide inside the slide groove 15 of the rotating plate 506, and then the rotating plate 506 can also push the plug-in block 507 in the horizontal direction left and right without affecting the rotation of the rotating plate 506.

[0033] Example 2: Please refer to Figure 1 , Figure 3 - Figure 5 As shown, an upper sealing plate 10 and a DC output connector 4 are provided on both sides of the upper end of the outer shell 1, and the lower end of the DC output connector 4 is connected to the inner part of the upper end of the outer shell 1 through a spring 3 13, and a charging module 11 is provided on the inner walls of the left and right sides of the outer shell 1, and a cooling fan 14 is provided between the rear side wall of the outer shell 1 and the battery placement basket 2, wherein the DC output connector 4, the charging module 11 and the cooling fan 14 are all prior arts, so they are not described in detail;

[0034] It should be noted that the setting of spring three 13 can enable the spring three 13 to move as a whole into the upper end of the outer shell 1 under the pressure of the upper sealing plate 10 when the upper sealing plate 10 closes the upper end of the outer shell 1. When the upper sealing plate 10 is opened, the upper end of the DC output connector 4 will move upward out of the outer shell 1 due to the elastic force of the spring three 13, so that when the battery is placed in the battery placement basket 2, the upper end of the DC output connector 4 is smoothly connected to the connection port of the battery, thereby facilitating the charging of the battery.

[0035] The bottom of the outer shell 1 is provided with a bottom vent 9 and a movable groove 17. The two horizontal movable plates 604 are both arranged inside the movable groove 17. The size of the dust filter 605 is the same as that of the bottom vent 9. The setting of the bottom vent 9 enables the two horizontal movable plates 604 to move horizontally away from the lower pressing block 601 after the battery is placed in the battery placement basket 2, thereby making the dust filter 605 and the bottom vent 9 on the same vertical plane, thereby making the bottom of the outer shell 1 ventilated with the outside world, which is convenient for heat dissipation during charging. The setting of the movable groove 17 provides the horizontal movable plates with a plurality of movable grooves 17 for the battery. The second 604 provides a movable space, so that the horizontal movable plate 2 604 can move horizontally to the left and right smoothly. The inner bottom wall of the outer shell 1 is provided with a horizontal movable groove 2 19, and there are four horizontal movable grooves 2 19. The four horizontal movable grooves 2 19 are all connected with the movable groove 2 17. The lower ends of the four horizontal push rods 603 are respectively arranged inside the four horizontal movable grooves 2 19. The setting of the horizontal movable grooves 2 19 provides a movable space for the horizontal push rod 603, so that the horizontal push rod 603 can move horizontally to the left and right smoothly, and then the horizontal push rod 603 can smoothly drive the horizontal movable plate 2 604 to move horizontally to the left and right.

[0036] When the present invention is in use, the upper sealing plate 10 is first opened, and then the battery is vertically placed in the battery placement basket 2. Under the guidance of the battery guide block 3, the battery moves downward slowly and steadily. When the lower end of the battery contacts the T-shaped lifting block 501, the battery continues to move downward, which will simultaneously drive the T-shaped lifting block 501 to move downward. The downward movement of the T-shaped lifting block 501 drives the pressing plate 502 and the connecting rod 8 to move downward. Then the pressing plate 502 presses the left end of the lever 504 downward, and the right end of the lever 504 rotates upward. Through the hinged rod 50 5 drives the lower end of the rotating plate 506 to move to the left, and then the upper end of the rotating plate 506 drives the plug-in block 507, the connecting block 508 and the horizontal moving plate 1 509 to move horizontally to the right. When the bottom of the battery contacts the bottom of the battery placement basket 2, the upper end of the battery is connected to the DC output connector 4. At this time, the battery placement work is completed. At the same time, the horizontal moving plate 1 509 also moves horizontally with the dust filter 1 511, so that the dust filter 1 511 corresponds to the side vent 7. At this time, the interior of the outer shell 1 is ventilated with the outside air through the side vent 7;

[0037] When the battery drives the T-shaped lifting block 501 to move vertically downward, the connecting rod 8 connected to the T-shaped lifting block 501 will also drive the lower pressing block 601 to move downward. The lower pressing block 601 moves downward and drives the horizontal push rod 603 and the horizontal moving plate 2 604 to move horizontally in a direction away from the lower pressing block 601 through the hinge rod 2 602. Then, when the battery is placed, the horizontal moving plate 2 604 moves horizontally with the dust filter 2 605, so that the dust filter 2 605 corresponds to the bottom vent 9. At this time, the bottom of the outer shell 1 is ventilated with the outside air through the bottom vent 9.

[0038] Figure 7 When the battery (battery not shown) is placed in the battery placement basket 2, the ventilation opening of the outer shell 1 is ventilated. When the battery is charged, the cooling fan 14 is started, and the cooling fan 14 blows air to the rear side, so that the bottom and front end of the outer shell 1 are blown in, and the air inside the outer shell 1 carries the heat dissipated during operation and is discharged from the side ventilation opening 7 on the rear side of the outer shell 1, thereby avoiding the damage caused by the excessive temperature inside the charging device during charging;

[0039] After the battery is charged, the battery is taken out from the battery placement basket 2. At this time, the T-shaped lifting block 501 is no longer affected by external forces, and the elastic force of the spring 1 503 and the spring 2 510 is released. The spring 1 503 will exert an upward force on the pressure plate 502, so that the pressure plate 502 will drive the connecting rod 8 and the T-shaped lifting block 501 to move upward to the initial position. At the same time, the connecting rod 8 will also drive the lower pressing block 601 to move upward, so that the lower pressing block 601 drives the horizontal push rod 603 and the horizontal moving plate 2 604 to move horizontally in the direction close to the lower pressing block 601 through the hinge rod 2 602. When the T-shaped lifting block 501 moves back to the initial position, the two horizontal moving plates 2 604 also move back to the initial position, and then the two horizontal moving plates 2 604 close the bottom vent 9 to prevent the outer shell 1 from circulating with the outside air through the bottom vent 9. The spring 2 510 will The movable plate 509 applies a horizontal force to the left, so that the horizontal movable plate 509, the connecting block 508 and the plug-in block 507 move horizontally to the left, and then the plug-in block 507 pushes the upper end of the rotating plate 506 to the left, so that the lower end of the rotating plate 506 moves to the right, and then the rotating plate 506 presses down the right end of the lever 504 through the hinge rod 505, so that the left end of the lever 504 moves upward back to the initial position. At this time, the horizontal movable plate 509 closes the side vent 7 to prevent the outer shell 1 from circulating with the outside air through the side vent 7. Then the upper sealing plate 10 is closed to seal the upper end of the outer shell 1, so that the interior of the outer shell 1 is no longer circulated with the outside air. Then, when the outer shell 1 is stored, external dust and water vapor will not enter the interior of the outer shell 1, so as to prevent water vapor from corroding the electrical components inside the outer shell 1, thereby improving the use effect and service life of this charging device.

[0040] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A detachable battery charging device with high connection reliability, comprising an outer shell (1), a battery placement basket (2) is arranged inside the outer shell (1), and the bottom of the battery placement basket (2) is fixedly connected to the inner bottom of the outer shell (1) through a support column (12), and the inner walls of the front and rear sides of the battery placement basket (2) are both provided with battery guide blocks (3), characterized in that: Two groups of opening and closing mechanisms (5) are symmetrically arranged on the front and rear sides of the interior of the outer shell (1), and the opening and closing mechanism (5) comprises a T-shaped lifting block (501), and two T-shaped lifting blocks (501) are arranged. The two T-shaped lifting blocks (501) are respectively slidably mounted inside the lower part of the two rear battery guide blocks (3), and the rear ends of the two T-shaped lifting blocks (501) are each provided with a pressing plate (502), and the lower ends of the two pressing plates (502) are each provided with a spring (503), and the two pressing plates (502) are fixedly connected by a connecting rod (8), and the lower end of the right side of the connecting rod (8) and the right side of the connecting rod (8) are connected to each other. The lower end of the rear side of the pressure plate (502) is abutted against a lever (504), the upper end of the right side of the lever (504) is hinged to a rotating plate (506) through a hinge rod (505), a plug-in block (507) is movably installed inside the upper end of the rotating plate (506), a connecting block (508) is arranged at the rear end of the plug-in block (507), a horizontal moving plate (509) is arranged on the left side of the connecting block (508), springs (510) are arranged at both upper and lower ends of the right side wall of the horizontal moving plate (509), and a dust filter (511) is arranged inside the horizontal moving plate (509); The outer shell (1) is provided with a side vent (7) and a movable groove (16) at both the front and rear ends, and the side vent (7) is connected to the movable groove (16), the connecting block (508), the horizontal movable plate (509) and the spring (510) are all movably mounted inside the movable groove (16), and the dust filter (511) is the same size as the side vent (7); The inner walls of the front and rear sides of the outer shell (1) are each provided with a horizontal movable groove (18), and the horizontal movable groove (18) is connected to the movable groove (16); one end of the two plug-in blocks (507) close to the connecting block (508) is respectively arranged inside the two horizontal movable grooves (18); the upper ends of the two rotating plates (506) are each provided with a slide groove (15); one end of the two plug-in blocks (507) close to the connecting block (508) is respectively movably installed inside the two slide grooves (15); An opening and closing mechanism 2 (6) is arranged below the connecting rod (8), and the opening and closing mechanism 2 (6) includes a lower pressing block (601) and a horizontal movable plate 2 (604), two of the lower pressing blocks (601) are arranged symmetrically in front and back, and the upper ends of the two lower pressing blocks (601) are respectively connected to the lower ends in the middle of the two connecting rods (8), and two of the horizontal movable plates 2 (604) are symmetrically arranged in the left and right, and dustproof filter screens 2 (605) are arranged inside the two horizontal movable plates 2 (604), and horizontal push rods (603) are arranged on the front and rear sides of the two horizontal movable plates 2 (604) near the upper ends of the connecting rods (8), and the lower ends of the two lower pressing blocks (601) are respectively hinged to the four horizontal push rods (603) through hinged rods 2 (602); The bottom of the outer shell (1) is provided with a bottom vent (9) and a movable groove (17), the two horizontal movable plates (604) are both arranged inside the movable groove (17), and the size of the dustproof filter (605) is the same as that of the bottom vent (9); The inner bottom wall of the outer shell (1) is provided with a horizontal movable groove II (19), and four horizontal movable groove IIs (19) are provided, and the four horizontal movable groove IIs (19) are all connected to the movable groove II (17), and the lower ends of the four horizontal push rods (603) are respectively arranged inside the four horizontal movable groove IIs (19); An upper sealing plate (10) and a DC output connector (4) are provided on both left and right sides of the upper end of the outer shell (1), and the lower end of the DC output connector (4) is connected to the interior of the upper end of the outer shell (1) via a spring three (13). Charging modules (11) are provided on both left and right inner walls of the outer shell (1), and a cooling fan (14) is provided between the rear side wall of the outer shell (1) and the battery placement basket (2).

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