High-efficiency direct-current charging and discharging equipment

Abstract

The invention discloses high-efficiency direct-current charging and discharging equipment, and relates to the technical field of pure electric drive automobile direct-current charging and discharging equipment.The high-efficiency direct-current charging and discharging equipment comprises a water storage tank and a main box body, the main box body is fixed to the water storage tank, a box door capable of being opened is installed on the main box body, a top plate is fixed to the upper end face of the main box body, and a charging mechanism is connected to the top plate; a limiting plate, a shielding mechanism and a water cooling mechanism are fixed to the side edge of the main box body, and a cleaning mechanism is installed on the water cooling mechanism. According to the high-efficiency direct-current charging and discharging equipment, an adjustable electric wire suspension mechanism is adopted, so that an electric wire can be in a suspended state, the electric wire is effectively prevented from being dragged and damaged or being pressed by a vehicle, the service life of the equipment is effectively prolonged, and protection can be achieved when the electric wire is dragged in cooperation with an elastic buffer mechanism; and the problem that the wire is blocked or damaged due to violent pulling is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of DC charging and discharging equipment for pure electric drive vehicles, and specifically to a high-efficiency DC charging and discharging equipment. Background Art

[0002] A pure electric drive vehicle is a new energy vehicle, which mainly realizes the driving function through the cooperation of a battery and a motor. The DC charging and discharging equipment (charging pile) is one of the supporting facilities for pure electric drive vehicles, and its main function is to charge pure electric drive vehicles. The DC charging and discharging equipment (charging pile) includes a DC charger and a charging plug. The DC charger converts the AC power supply into a DC power supply and directly transmits the current to the battery of the pure electric drive vehicle through the charging plug to achieve fast and efficient charging. With the development of new energy vehicles, the number of charging piles is also increasing;

[0003] When the existing DC charging piles are actually used, the connecting wire between the charging gun head and the charging pile is directly dragged on the ground, which easily causes the wire to be damaged by being run over by wheels. Moreover, during the long-term dragging process of the wire, the wire skin is easily damaged due to friction with the ground, resulting in problems such as electric leakage. Therefore, in view of the above problems, a high-efficiency DC charging and discharging equipment is designed to better meet the actual use requirements. Summary of the Invention

[0004] The purpose of the present invention is to provide a high-efficiency DC charging and discharging equipment to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A high-efficiency DC charging and discharging equipment, including a water storage tank and a main box body. The main box body is fixed on the water storage tank. An openable box door is installed on the main box body. A top plate is fixed on the upper end surface of the main box body. A charging mechanism is connected to the top plate. A limiting plate, a shielding mechanism and a water cooling mechanism are fixed on the side of the main box body. A cleaning mechanism is installed on the water cooling mechanism. The charging mechanism includes a rotating rod, a round rod, a sliding rod, a fixed frame, a vertical rod, a first spring, a guiding wheel, a wire and a charging gun head. The rotating rod is rotatably connected to the top plate through a bearing. A round rod is fixed on the rotating rod. A sliding rod is slidably connected to the round rod. A fixed frame is arranged below the sliding rod. A vertical rod is fixed on the upper end of the fixed frame. The vertical rod is slidably connected to the sliding rod. A first spring is fixed between the vertical rod and the sliding rod. A guiding wheel is rotatably connected to the fixed frame. The guiding wheel is connected to the wire. One end of the wire is connected to the main box body, and the other end of the wire is fixed on the charging gun head. Through the rotation of the rotating rod and the sliding between the round rod and the sliding rod, the position of the charging gun head is adjusted, and with the elastic action of the first spring, the height of the guiding wheel is adjusted to better meet the charging requirements.

[0006] Preferably, a water pump is installed on the rear end face of the water storage tank, and two overflow ports are provided on the rear end face of the water storage tank. The overflow ports are connected to the sewer through conduits. Through the function of the overflow ports, automatic drainage can be achieved when the water in the water storage tank is too high, ensuring the normal operation of the device.

[0007] Preferably, a control panel is fixed on the cabinet door, and a rain shield fixed on the cabinet door is provided above the control panel. A gunstock is also fixed on the cabinet door, and the gunstock is nested with the charging gun head. Through the nesting function between the gunstock and the charging gun head, the protection of the charging gun head can be achieved.

[0008] Preferably, heat dissipation openings are provided on both the left and right sides of the main cabinet body, and a heat dissipation fan is fixed on the upper end face of the main cabinet body. The heat dissipation fan is arranged below the top plate. Through the above structure, the air-cooling heat dissipation function inside the main cabinet body can be achieved, ensuring the normal operation of the device.

[0009] Preferably, a rain droplet sensor is fixed on the top plate, and grooves are evenly provided on the upper end face of the top plate. The end of the top plate is located above the water cooling mechanism. Through the function of the rain droplet sensor, rain detection can be achieved, providing a detection basis for switching between air cooling and water cooling of the device. With the function of the grooves on the top plate, the collection of rainwater can be facilitated.

[0010] Preferably, the shielding mechanism includes a fixing plate, an electric telescopic rod, a movable frame and a baffle. The fixing plate is fixed on the main cabinet body, and an electric telescopic rod is fixed on the lower end face of the fixing plate. The output end of the electric telescopic rod is fixed on the movable frame. At the same time, baffles are evenly fixed on the movable frame. The baffles are distributed in a one-to-one correspondence with the heat dissipation openings, and the baffles are positioned by contacting the limiting plates. Through the above structure, the shielding function of the heat dissipation openings can be achieved in rainy weather, avoiding damage to the electrical components inside the main cabinet body caused by external water splashing.

[0011] Preferably, the water cooling mechanism includes a water cooling box, a liquid level sensor, a water outlet, a water cooling pipe, a movable rod, a sealing plug, a second spring, a guide rod, a bottom plate and a filter screen. The water cooling box is fixed on the main cabinet body, and the water cooling box is connected to the water pump through a conduit. A liquid level sensor is installed inside the water cooling box. At the same time, a water outlet is provided on the lower end face of the water cooling box. The water outlet is connected to the water cooling pipe through a conduit. The water cooling pipe is fixed inside the main cabinet body, and the water cooling pipe is in a serpentine structure. A filter screen is fixed on the water cooling box. Through the above structure, the basic guarantee for the water cooling heat dissipation of the device can be provided, and with the serpentine structure of the water cooling pipe, the contact area with air can be increased, thus ensuring the water cooling heat dissipation effect.

[0012] Preferably, a movable rod is slidably connected to the water cooling box, and a sealing plug is fixed on the movable rod. The sealing plug cooperates with the water outlet to achieve a sealing effect. A second spring is fixed between the movable rod and the fixed plate. Through the above structure, it can provide a basic guarantee for the automatic sealing and unsealing of the water outlet, so as to ensure the normal operation of the device.

[0013] Preferably, guide rods are symmetrically fixed on the front and rear of the lower end surface of the water cooling box. The guide rods are slidably connected to the fixed plate, and the lower ends of the guide rods are fixed on the bottom plate. At the same time, the bottom plate is fixedly connected to the movable frame. When the movable frame drives the bottom plate to move, with the sliding guiding effect between the guide rods and the fixed plate, the stability of the movement of the bottom plate and the water cooling box can be ensured.

[0014] Preferably, the cleaning mechanism includes a fixed rod, a cleaning brush and a connecting rod. The fixed rod is fixed on the upper end surface of the water cooling box, and the cleaning brush is slidably connected to the fixed rod and contacts the filter screen. One end of the cleaning brush is rotatably connected to the connecting rod, and the other end of the connecting rod is rotatably connected to the main box body. When the water cooling box drives the fixed rod and the cleaning brush to move, with the transmission of the connecting rod, the cleaning brush slides relative to the filter screen, thus providing a basic guarantee for cleaning foreign matters such as leaves on the surface of the filter screen.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This high-efficiency DC charging and discharging device adopts an adjustable wire suspension mechanism, which can keep the wire in a suspended state, thus effectively avoiding damage caused by wire dragging or being run over by a vehicle, and effectively extending the service life of the device. Cooperating with the elastic buffer mechanism, it can achieve protection when the wire is pulled, avoiding problems such as the wire being stuck or damaged due to violent pulling. Specifically, through the rotation of the rotating rod and the sliding between the round rod and the sliding rod, the positions of the guide wheel and the charging gun head can be adjusted for charging operations. With the cooperation of the first spring and the vertical rod, when the wire is violently pulled, buffer protection can be achieved, avoiding problems such as the wire being stuck and damaged with the guide wheel and the fixed frame.

[0017] 2. The high-efficiency DC charging and discharging device adopts an automatically adjustable air-cooling and water-cooling mechanism, which can protect the device in rainy days, prevent water splashes from entering the device and damaging electrical components, thus effectively ensuring the service life of the device. Together with the linked cleaning mechanism, it can clean foreign objects such as leaves on the filter screen. Specifically, through the cooling fan and the heat dissipation port, the air circulation inside and outside the main box can be facilitated, so as to achieve air-cooling heat dissipation of the device. When it rains, through the action of the electric telescopic rod, the movable frame and the baffle, the heat dissipation port can be blocked to prevent external water splashes from entering the main box. Together with the action of the movable rod, the sealing plug, the water-cooling pipe, the water storage tank and the water pump, the water-cooling heat dissipation of the device in rainy days can be achieved, improving the adaptability of the device. And when the water-cooling box moves down, with the transmission of the connecting rod, the cleaning brush moves, and the automatic cleaning of the filter screen can be realized, ensuring the normal filtering function of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view three-dimensional structure schematic diagram of the whole device of the present invention;

[0019] Figure 2 It is a rear view three-dimensional structure schematic diagram of the whole device of the present invention;

[0020] Figure 3 It is a three-dimensional structure schematic diagram of the internal composition of the main box of the present invention;

[0021] Figure 4 It is a three-dimensional structure schematic diagram of the composition of the charging mechanism of the present invention;

[0022] Figure 5 It is a three-dimensional structure schematic diagram of the composition of the shielding mechanism and the water-cooling mechanism of the present invention;

[0023] Figure 6 It is a three-dimensional structure schematic diagram of the cross-section of the water-cooling mechanism of the present invention;

[0024] Figure 7 It is a three-dimensional structure schematic diagram of the cross-section of the composition of the water-cooling mechanism and the cleaning mechanism of the present invention.

[0025] In the figure: 1. Water storage tank; 101. Water pump; 102. Overflow port; 2. Main box body; 201. Box door; 202. Control panel; 203. Rain shield; 204. Gunstock; 205. Heat dissipation port; 206. Heat dissipation fan; 207. Top plate; 208. Raindrop sensor; 209. Limiting plate; 3. Charging mechanism; 301. Rotating rod; 302. Round rod; 303. Slide rod; 304. Fixed bracket; 305. Vertical rod; 306. First spring; 307. Guide wheel; 308. Electric wire; 309. Charging gun head; 4. Shielding mechanism; 401. Fixed plate; 402. Electric telescopic rod; 403. Movable frame; 404. Baffle; 5. Water cooling mechanism; 501. Water cooling box; 502. Liquid level sensor; 503. Water outlet; 504. Water cooling pipe; 505. Movable rod; 506. Sealing plug; 507. Second spring; 508. Guide rod; 509. Bottom plate; 510. Filter screen; 6. Cleaning mechanism; 601. Fixed rod; 602. Cleaning brush; 603. Connecting rod. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1-7, the present invention provides a technical solution: a high-efficiency DC charging and discharging device, including a water storage tank 1 and a main box body 2. The main box body 2 is fixed on the water storage tank 1. An openable door 201 is installed on the main box body 2. The upper end surface of the main box body 2 is fixed with a top plate 207. A charging mechanism 3 is connected to the top plate 207. A limiting plate 209, a shielding mechanism 4 and a water cooling mechanism 5 are fixed on the side of the main box body 2. A cleaning mechanism 6 is installed on the water cooling mechanism 5. The charging mechanism 3 includes a rotating rod 301, a round rod 302, a sliding rod 303, a fixing frame 304, a vertical rod 305, a first spring 306, a guiding wheel 307, a wire 308 and a charging gun head 309. The rotating rod 301 is rotatably connected to the top plate 207 through a bearing. A round rod 302 is fixed on the rotating rod 301. A sliding rod 303 is slidably connected to the round rod 302. A fixing frame 304 is arranged below the sliding rod 303. A vertical rod 305 is fixed at the upper end of the fixing frame 304. The vertical rod 305 is slidably connected to the sliding rod 303. A first spring 306 is fixed between the vertical rod 305 and the sliding rod 303. A guiding wheel 307 is connected to the fixing frame 304 through a bearing. The guiding wheel 307 is connected to the wire 308. One end of the wire 308 is connected to the main box body 2, and the other end of the wire 308 is fixed on the charging gun head 309. Through the rotation of the rotating rod 301 and the sliding between the round rod 302 and the sliding rod 303, the position of the charging gun head 309 is adjusted. With the elastic action of the first spring 306, the height of the guiding wheel 307 is adjusted to better meet the charging requirements.

[0028] A control panel 202 is fixed on the door 201, and a rain shield 203 fixed on the door 201 is arranged above the control panel 202. A gunstock 204 is also fixed on the door 201, and the gunstock 204 is nested with the charging gun head 309;

[0029] When using this high-efficiency DC charging and discharging device, as Figures 1-7 shown, when charging, pull out the charging gun head 309 outward so that the charging gun head 309 is separated from the gunstock 204. With the rotation of the rotating rod 301, the direction of the guiding wheel 307 can be conveniently adjusted, so that the position of the charging gun head 309 can be adjusted to better meet the actual charging requirements. Then, with the sliding between the round rod 302 and the sliding rod 303, the front and rear positions of the guiding wheel 307 can be adjusted to lift the wire 308 and avoid damage to the wire 308 caused by dragging and friction on the ground. And during actual use, when the wire 308 is violently pulled, through the sliding of the vertical rod 305 and the elastic action of the first spring 306, the up and down position of the guiding wheel 307 can be adjusted, so as to achieve a buffering effect and avoid jamming between the wire 308, the guiding wheel 307 and the fixing frame 304, which affects the normal use of the device;

[0030] A water pump 101 is installed on the rear end face of the water storage tank 1. Two overflow ports 102 are provided on the rear end face of the water storage tank 1, and the overflow ports 102 are connected to the sewer through conduits. Heat dissipation openings 205 are provided on both the left and right sides of the main body 2. A heat dissipation fan 206 is fixed on the upper end face of the main body 2, and the heat dissipation fan 206 is arranged below the top plate 207. A rain drop sensor 208 is fixed on the top plate 207. Grooves are evenly provided on the upper end face of the top plate 207, and the end of the top plate 207 is located above the water cooling mechanism 5. The shielding mechanism 4 includes a fixing plate 401, an electric telescopic rod 402, a movable frame 403 and a baffle 404. The fixing plate 401 is fixed on the main body 2. An electric telescopic rod 402 is fixed on the lower end face of the fixing plate 401, and the output end of the electric telescopic rod 402 is fixed on the movable frame 403. At the same time, baffles 404 are equidistantly fixed on the movable frame 403. The baffles 404 are distributed in a one-to-one correspondence with the heat dissipation openings 205, and the baffles 404 are in contact with the limiting plate 209 to achieve positioning. The water cooling mechanism 5 includes a water cooling box 501, a liquid level sensor 502, a water outlet 503, a water cooling pipe 504, a movable rod 505, a sealing plug 506, a second spring 507, a guide rod 508, a bottom plate 509 and a filter screen 510. The water cooling box 501 is fixed on the main body 2. The water cooling box 501 is connected to the water pump 101 through a conduit. A liquid level sensor 502 is installed in the water cooling box 501. A water outlet 503 is provided on the lower end face of the water cooling box 501. The water outlet 503 is connected to the water cooling pipe 504 through a conduit. The water cooling pipe 504 is fixed in the main body 2, and the water cooling pipe 504 is in a serpentine structure. A filter screen 510 is fixed on the water cooling box 501. A movable rod 505 is slidably connected to the water cooling box 501. A sealing plug 506 is fixed on the movable rod 505, and the sealing plug 506 cooperates with the water outlet 503 to achieve a sealing effect. A second spring 507 is fixed between the movable rod 505 and the fixing plate 401. Guide rods 508 are symmetrically fixed on the front and rear of the lower end face of the water cooling box 501. The guide rods 508 are slidably connected to the fixing plate 401, and the lower ends of the guide rods 508 are fixed on the bottom plate 509. At the same time, the bottom plate 509 is fixed to the movable frame 403;

[0031] During the use of the device, if Figures 1-7As shown, when the rain drop sensor 208 does not detect raindrops, the heat dissipation fan 206 starts at this time. With the cooperation of the heat dissipation port 205, the air enters the main box body 2 through the heat dissipation port 205 and is discharged outward through the heat dissipation fan 206, thus realizing the air-cooled heat dissipation of the device. When the rain drop sensor 208 detects raindrops, the heat dissipation fan 206 stops running at this time, and the electric telescopic rod 402 starts to extend. The electric telescopic rod 402 drives the movable frame 403 and the baffle 404 to move downward. When the baffle 404 contacts the limiting plate 209, the electric telescopic rod 402 stops extending at this time. At this time, the baffle 404 just blocks the heat dissipation port 205, thus effectively preventing the external water stains from splashing into the main box body 2 and causing damage to the electrical components. And when the movable frame 403 moves downward, it synchronously drives the bottom plate 509, the guide rod 508 and the water cooling box 501 to move downward. With the sliding guiding function between the guide rod 508 and the fixing plate 401, the stability of the movement of the water cooling box 501 can be ensured. At this time, the distance between the water cooling box 501 and the fixing plate 401 is reduced, so that the second spring 507 is forced to contract. Under the elastic force of the second spring 507, the movable rod 505 and the sealing plug 506 move upward relative to the water cooling box 501, so that the sealing plug 506 is separated from the water outlet 503, and the water in the water cooling box 501 enters the water cooling pipe 504 through the water outlet 503 and the conduit. With the serpentine structure of the water cooling pipe 504, the flow path and flow time of the water can be increased. Through the continuous flow of cold water in the water cooling pipe 504 and the heat exchange effect of the water cooling pipe 504, the water cooling effect of the main box body 2 can be realized, ensuring the heat dissipation effect of the main box body 2 in rainy days. And the water entering the water cooling pipe 504 flows back into the water storage tank 1 through the lower end of the water cooling pipe 504. Then, with the cooperation of the water pump 101 and the conduit, the water in the water storage tank 1 is transported into the water cooling box 501, thus realizing the recycling of water. And with the cooperation of the top plate 207 and the diversion groove on the top plate 207, the diversion of rainwater can be realized, so that the rainwater enters the water cooling box 501, thus ensuring sufficient water source in the water cooling box 501 and further ensuring the water cooling effect of the device;

[0032] The cleaning mechanism 6 includes a fixed rod 601, a cleaning brush 602 and a connecting rod 603. The fixed rod 601 is fixed on the upper end surface of the water cooling box 501, and a cleaning brush 602 is slidably connected to the fixed rod 601, and the cleaning brush 602 contacts the filter screen 510. One end of the cleaning brush 602 is rotatably connected to one end of the connecting rod 603, and the other end of the connecting rod 603 is rotatably connected to the main box body 2;

[0033] When the water cooling box 501 moves downward, as Figures 1-7As shown, with the transmission of the connecting rod 603, the cleaning brush 602 is forced to slide on the fixed rod 601, so that the cleaning brush 602 can clean foreign matters such as leaves on the filter screen 510, ensuring the normal filtering function of the filter screen 510 and preventing foreign matters from entering and causing pipeline blockage, which affects the normal operation of the device. This is the working principle of the high-efficiency DC charging and discharging device.

[0034] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency DC charging and discharging device, comprising a water storage tank (1) and a main box body (2), wherein the main box body (2) is fixed on the water storage tank (1), characterized in that: The main box body (2) is provided with an openable box door (201), the upper end surface of the main box body (2) is fixed with a top plate (207), the top plate (207) is connected with a charging mechanism (3), the side of the main box body (2) is fixed with a limit plate (209), a shielding mechanism (4) and a water cooling mechanism (5), the water cooling mechanism (5) is provided with a cleaning mechanism (6), the charging mechanism (3) comprises a rotating rod (301), a round rod (302), a sliding rod (303), a fixing frame (304), a vertical rod (305), a first spring (306), a guide wheel (307), an electric wire (308) and a charging gun head (309), the rotating rod (301) is rotated by a bearing The rotating rod (301) is connected to the top plate (207), a round rod (302) is fixed on the rotating rod (301), a sliding rod (303) is slidably connected on the round rod (302), a fixing frame (304) is arranged on the lower side of the sliding rod (303), a vertical rod (305) is fixed on the upper end of the fixing frame (304), the vertical rod (305) and the sliding rod (303) are slidably connected, a first spring (306) is fixed between the vertical rod (305) and the sliding rod (303), a guide wheel (307) is connected to the bearing on the fixing frame (304), the guide wheel (307) and the electric wire (308) are mutually connected, and one end of the electric wire (308) is mutually connected to the main box (2).

2. A high-efficiency DC charging and discharging device according to claim 1, characterized in that: A water pump (101) is installed on the rear end surface of the water storage tank (1), and two overflow ports (102) are provided on the rear end surface of the water storage tank (1), and the overflow ports (102) are interconnected with the sewer via conduits.

3. A high-efficiency DC charging and discharging device according to claim 1, characterized in that: A control panel (202) is fixed on the box door (201), and a rain shield (203) fixed on the box door (201) is arranged above the control panel (202). A gun stock (204) is also fixed on the box door (201), and the gun stock (204) and the charging gun head (309) are nested and connected.

4. A high-efficiency DC charging and discharging device according to claim 1, characterized in that: The left and right sides of the main box body (2) are both provided with heat dissipation openings (205), and a heat dissipation fan (206) is fixed to the upper end surface of the main box body (2), and the heat dissipation fan (206) is arranged below the top plate (207).

5. A high-efficiency DC charging and discharging device according to claim 1, characterized in that: A raindrop sensor (208) is fixed on the top plate (207), and grooves are evenly formed on the upper end surface of the top plate (207), and the end of the top plate (207) is located above the water cooling mechanism (5).

6. A high-efficiency DC charging and discharging device according to claim 1, characterized in that: The shielding mechanism (4) comprises a fixed plate (401), an electric telescopic rod (402), a movable frame (403) and a baffle (404); the fixed plate (401) is fixed on the main box (2); the electric telescopic rod (402) is fixed on the lower end surface of the fixed plate (401); the output end of the electric telescopic rod (402) is fixed on the movable frame (403); baffles (404) are fixed on the movable frame (403) at equal intervals; the baffles (404) are distributed in a one-to-one correspondence with the heat dissipation ports (205); and the baffles (404) are in contact with the limiting plates (209) to achieve positioning.

7. A high-efficiency DC charging and discharging device according to claim 1, characterized in that: The water cooling mechanism (5) comprises a water cooling box (501), a liquid level sensor (502), a water outlet (503), a water cooling pipe (504), a movable rod (505), a sealing plug (506), a second spring (507), a guide rod (508), a bottom plate (509) and a filter (510). The water cooling box (501) is fixed on the main box body (2), and the water cooling box (501) is connected to the water pump (101) through a conduit. The water cooling box (501) is installed with a liquid level sensor (502). The lower end surface of the water cooling box (501) is provided with a water outlet (503), and the water outlet (503) is connected to the water cooling pipe (504) through a conduit. The water cooling pipe (504) is fixed in the main box body (2), and the water cooling pipe (504) is a serpentine structure. The filter (510) is fixed on the water cooling box (501).

8. A high-efficiency DC charging and discharging device according to claim 7, characterized in that: The water cooling box (501) is slidably connected with a movable rod (505), and a sealing plug (506) is fixed on the movable rod (505). The sealing plug (506) cooperates with the water outlet (503) to achieve a sealing effect. A second spring (507) is fixed between the movable rod (505) and the fixed plate (401).

9. A high-efficiency DC charging and discharging device according to claim 7, characterized in that: The lower end of the water cooling box (501) is symmetrically fixed with guide rods (508) in the front and rear directions, and the guide rods (508) are slidably connected to the fixed plate (401), and the lower end of the guide rods (508) is fixed on the bottom plate (509), and the bottom plate (509) and the movable frame (403) are fixed to each other.

10. A high-efficiency DC charging and discharging device according to claim 1, characterized in that: The cleaning mechanism (6) comprises a fixed rod (601), a cleaning brush (602) and a connecting rod (603); the fixed rod (601) is fixed to the upper end surface of the water cooling box (501); the cleaning brush (602) is slidably connected to the fixed rod (601), and the cleaning brush (602) is in contact with the filter screen (510); the cleaning brush (602) is rotatably connected to one end of the connecting rod (603), and the other end of the connecting rod (603) is rotatably connected to the main box body (2).

Images