Power van drainage structure and power van

Abstract

The utility model relates to the technical field of energy storage equipment, and discloses a power van drainage structure and a power van, the power van drainage structure comprises a trailer, an energy storage system and a water cooling unit, the trailer comprises a frame and a top plate; the skid-mounted base comprises a first longitudinal beam and a second longitudinal beam, and the first longitudinal beam and the second longitudinal beam are arranged on the top plate in a spaced mode in the third direction; the energy storage system comprises a plurality of battery clusters, the battery clusters are arranged on the first longitudinal beam and the second longitudinal beam side by side in the first direction, each battery cluster comprises a control module and a plurality of battery modules, the battery modules are stacked in the second direction, the control modules are arranged on the upper portions of the battery modules, and liquid cooling plates are arranged in the battery modules. The water cooling unit is arranged on the first longitudinal beam and the second longitudinal beam, and the water cooling unit communicates with the liquid cooling plate through a liquid supply pipeline system and a liquid return pipeline system; wherein the energy storage system and the water cooling unit are arranged at intervals with the top plate to form a drainage channel; the corrosion and aging speed of a vehicle body and accessories thereof can be reduced, and potential safety hazards are reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of energy storage devices, in particular to a power supply vehicle drainage structure and a power supply vehicle. BACKGROUND

[0002] The power supply vehicle usually sets the energy storage system, the water cooling system and the charging and discharging module on the frame, and in order to pursue heat dissipation, the above functional components are directly exposed and in contact with the external environment.

[0003] However, during use, the power supply vehicle often faces bad weather such as rainy days, or when there is a lot of dust on the power supply vehicle, water needs to be used for cleaning frequently. Since the installation structure between the functional components of the power supply vehicle is compact, during the rain or the cleaning process, a certain amount of water will be stored on the power supply vehicle, which will accelerate the corrosion and aging of the vehicle body and the accessories thereon, causing safety hazards. CONTENT OF THE UTILITY MODEL

[0004] The application provides a power supply vehicle drainage structure and a power supply vehicle, which can reduce the corrosion and aging speed of the vehicle body and its accessories and reduce safety hazards.

[0005] In one aspect, the application provides a power supply vehicle drainage structure, which comprises a trailer, an energy storage system and a water cooling unit, and the specific scheme is as follows.

[0006] The trailer comprises a frame and a top plate, and the top plate is arranged on the top of the frame;

[0007] The jacking base comprises a first longitudinal beam and a second longitudinal beam, and the first longitudinal beam and the second longitudinal beam are arranged on the top plate in a spaced manner along a third direction;

[0008] The energy storage system comprises a plurality of battery clusters, and the plurality of battery clusters are arranged on the first longitudinal beam and the second longitudinal beam in a side-by-side manner along a first direction;

[0009] The water cooling unit is arranged on the first longitudinal beam and the second longitudinal beam, and the water cooling unit is in communication with the liquid cooling plate through a liquid supply pipeline system and a liquid return pipeline system to form a cooling circulation loop;

[0010] The energy storage system and the water cooling unit are arranged in a spaced manner with the top plate to form a drainage channel.

[0011] Beneficial effects: by setting the energy storage system and the water-cooled unit on the first longitudinal beam and the second longitudinal beam, and spacing them from the top plate to form a drainage channel, rainwater or cleaning water can flow back into the drainage channel from the energy storage system and the water-cooled unit, thereby achieving rapid drainage, reducing the amount of water accumulated on the vehicle frame, and reducing the corrosion and aging speed of the vehicle body and its accessories, and reducing safety hazards.

[0012] In an optional embodiment, a plurality of water guide grooves are arranged on the top plate, the plurality of water guide grooves extend along the first direction, and along the second direction, the height of the water guide grooves near the trailer head is lower than the height of the water guide grooves at the trailer tail.

[0013] In an optional embodiment, the cross section of the top plate along the first direction is concave, and a plurality of the water guide grooves are arranged at the middle of the top plate along the third direction.

[0014] In an optional embodiment, the liquid supply pipeline system includes a liquid supply main line and a plurality of liquid supply branch lines, the liquid supply main line is in communication with the outlet of the water-cooled unit, and a part of the liquid supply main line is located between the first longitudinal beam and the second longitudinal beam, the first ends of the plurality of liquid supply branch lines are spaced apart and in communication with the liquid supply main line, and the second ends of the plurality of liquid supply branch lines penetrate the first longitudinal beam and are in communication with the liquid cooling plates in the plurality of battery clusters, respectively.

[0015] The liquid return pipeline system includes a liquid return main line and a plurality of liquid return branch lines, the liquid return main line is in communication with the inlet of the water-cooled unit, and a part of the liquid return main line is located between the first longitudinal beam and the second longitudinal beam, the first ends of the plurality of liquid return branch lines are spaced apart and in communication with the liquid return main line, and the second ends of the plurality of liquid return branch lines penetrate the second longitudinal beam and are in communication with the liquid cooling plates in the plurality of battery clusters, respectively.

[0016] Among them, the liquid supply main line, the plurality of liquid supply branch lines, the liquid return main line and the plurality of liquid return branch lines are spaced apart from the top plate.

[0017] In an optional embodiment, a plurality of first load-bearing members are arranged on the first longitudinal beam, the plurality of first load-bearing members are spaced apart along the first direction and spaced apart from the top plate, and the liquid supply main line is arranged on the plurality of first load-bearing members.

[0018] A plurality of second load-bearing members are arranged on the second longitudinal beam, the plurality of second load-bearing members are spaced apart along the second direction and spaced apart from the top plate, and the liquid return main line is arranged on the plurality of second load-bearing members.

[0019] In an optional embodiment, a charging and discharging device is further included, which is connected with the energy storage system through the wire harness assembly.

[0020] The trailer further includes a first bearing frame and a second bearing frame, which are both spaced from the top plate, the first bearing frame is arranged on the first bearing members for bearing the wire harness assembly located between the first longitudinal beam and the second longitudinal beam, and the second bearing frame is arranged on the second bearing members for bearing the wire harness assembly located between the first longitudinal beam and the second longitudinal beam.

[0021] In an optional embodiment, the first bearing frame and the second bearing frame are both in a meshed hollow structure.

[0022] In an optional embodiment, the charging and discharging device, the energy storage system and the water cooling unit are spaced along the first direction on the first longitudinal beam and the second longitudinal beam.

[0023] In an optional embodiment, the plurality of battery clusters are spaced along the first direction on the first longitudinal beam and the second longitudinal beam.

[0024] In another aspect, the application provides a power supply vehicle, which includes the power supply vehicle drainage structure in any one of the above embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the specific embodiments or the related art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the related art description. Obviously, the drawings in the following description are some embodiments of the application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0026] Figure 1 It is a shaft side view of a power supply vehicle in an embodiment of the application;

[0027] Figure 2 It is a shaft side view of a power supply vehicle in an embodiment of the application;

[0028] Figure 3 It is a shaft side view of a power supply vehicle in an embodiment of the application;

[0029] Figure 4 It is a shaft side view of a power supply vehicle in an embodiment of the application;

[0030] Figure 5Figure 6 is a side view of the axle of a trailer of a power supply vehicle according to an embodiment of the present application;

[0031] Figure 6 Figure 7 is a side view of the axle of a trailer of a power supply vehicle according to an embodiment of the present application;

[0032] Figure 7 Figure 8 is a side view of the axle of a trailer of a power supply vehicle according to an embodiment of the present application; Figure 5 Figure 9 is an enlarged view of a portion of Figure 8;

[0033] Figure 8 Figure 10 is a side view of the axle of a trailer of a power supply vehicle according to an embodiment of the present application; Figure 6 Figure 11 is an enlarged view of a portion of Figure 10;

[0034] Figure 9 Figure 12 is a side view of the axle of a trailer of a power supply vehicle according to an embodiment of the present application;

[0035] Figure 10 Figure 13 is a side view of the axle of a trailer of a power supply vehicle according to an embodiment of the present application;

[0036] Figure 11 Figure 14 is a side view of the axle of a trailer of a power supply vehicle according to an embodiment of the present application;

[0037] Figure 12 Figure 15 is a side view of the axle of a trailer of a power supply vehicle according to an embodiment of the present application;

[0038] Figure 13 Figure 16 is a side view of the axle of a trailer of a power supply vehicle according to an embodiment of the present application;

[0039] Figure 14 Figure 17 is a side view of the axle of a trailer of a power supply vehicle according to an embodiment of the present application;

[0040] Figure 15 Figure 18 is a side view of the axle of a trailer of a power supply vehicle according to an embodiment of the present application;

[0041] Figure 16 Figure 19 is a structural schematic view of a trailer of a power supply vehicle according to an embodiment of the present application;

[0042] Figure 17 Figure 20 is a cross-sectional structural schematic view of a trailer of a power supply vehicle according to an embodiment of the present application;

[0043] Legend of reference signs:

[0044] X, first direction; Y, second direction; Z, third direction;

[0045] 1, trailer; 2, energy storage system; 3, water cooling unit; 4, charging and discharging device; 5, liquid supply pipeline system; 6, liquid return pipeline system; 7, baffle assembly; 8, drainage channel;

[0046] 11, frame; 111, top plate; 12, pry base; 1111, water guide groove; 13, first bearing frame; 14, second bearing frame;

[0047] 121, first longitudinal beam; 122, second longitudinal beam; 123, reinforcing part; 124, via hole; 125, through hole;

[0048] 1211, first beam body; 1212, first bearing; 1221, second beam body; 1222, second bearing;

[0049] 21, battery cluster;

[0050] 211, battery module; 212, control module; 213, upper cover plate;

[0051] 2111, first fixing hole; 2112, first containing frame; 2121, second fixing hole; 2122, second containing frame;

[0052] 41, direct current charging and discharging module; 42, alternating current charging and discharging module; 43, direct current wire harness; 44, alternating current wire harness;

[0053] 411, front direct current charging and discharging cabinet; 412, rear direct current charging and discharging cabinet;

[0054] 4111, adapter component; 41111, first plug-in seat; 41112, connecting wire; 41113, second plug-in seat;

[0055] 51, liquid supply trunk; 52, liquid supply branch;

[0056] 61, liquid return trunk; 62, liquid return branch. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0058] In the related art, the power supply vehicle usually sets the energy storage system, the water cooling system, the charging and discharging module and the like on the frame. In order to pursue heat dissipation, the above functional components are usually directly exposed and in contact with the external environment.

[0059] However, during use, electric vehicles often face harsh weather conditions, such as rainy days; or when there is a lot of dust on the electric vehicle, it is necessary to wash it with water frequently. Because the various functional components of the electric vehicle are installed in a compact structure, water will accumulate on the electric vehicle during rain or washing, which will accelerate the corrosion and aging of the vehicle body and its accessories, causing safety hazards.

[0060] To address the aforementioned technical problems, this application provides a power vehicle drainage structure and a power vehicle that can reduce the rate of corrosion and aging of the vehicle body and its accessories, thereby reducing safety hazards.

[0061] The following is combined with Figures 1 to 17 This describes an embodiment of the present application.

[0062] According to embodiments of this application, in one aspect, a power supply vehicle is provided, such as... Figures 1 to 3 As shown, the power vehicle drainage structure includes a trailer 1, an energy storage system 2, a water-cooled unit 3, and a charging and discharging device 4. The specific scheme is as follows.

[0063] like Figure 1 As shown, the trailer 1 includes a frame 11 and a roof plate 111. The roof plate 111 is located on the top of the frame 11. Specifically, the frame 11 is made of steel. Wheels are provided in the middle and rear of the frame 11. The wheels are arranged in three rows along the first direction X, with four wheels in each row, evenly distributed on both sides of the frame 11. The front of the frame 11 is used to connect with the power head. The roof plate 111 is a metal plate coated with an anti-rust paint layer.

[0064] The skid-mounted base 12 includes a first longitudinal beam 121 and a second longitudinal beam 122, which are spaced apart along the third direction Z on the top plate 111. Specifically, the skid-mounted base 12 is a base welded from steel beams, which can be I-beams, channel steel, or other steel materials. The specific type can be selected according to the load-bearing requirements. Both the first longitudinal beam 121 and the second longitudinal beam 122 are hollow beams. Specifically, the first longitudinal beam 121 and the second longitudinal beam 122 can be steel beams with a rectangular ring cross-section.

[0065] like Figure 3 As shown, the energy storage system 2 includes multiple battery clusters 21, which are arranged side-by-side along the first direction X on the first longitudinal beam 121 and the second longitudinal beam 122. Specifically, adjacent battery clusters 21 can be fitted together (i.e., not fitted together) or spaced apart by a certain distance of 10-30 mm, with the latter being preferred to enhance heat dissipation. Figure 13As shown, the battery cluster 21 includes a control module 212 and a plurality of battery modules 211, the plurality of battery modules 211 are arranged in a stacked manner along the second direction Y, and the control module 212 is arranged on the upper part of the plurality of battery modules 211, and the battery module 211 is provided with a liquid cooling plate, wherein the first direction X intersects the second direction Y, and preferably, the first direction X is arranged perpendicular to the second direction Y.

[0066] The control module 212 can be provided with a PCS (Power Conversion System, AC / DC conversion circuit) inside, which is connected with the AC charging and discharging circuit and the DC charging and discharging circuit in a plug-in manner.

[0067] As shown in the Figures 1 to 3 As shown, the water cooling unit 3 is arranged on the first longitudinal beam 121 and the second longitudinal beam 122, and specifically, the water cooling unit 3 can control the water temperature of the circulating water, can cool the circulating water to cool the battery cluster 21, or can heat the circulating water to heat the battery cluster 21 in a cold environment; the water cooling unit 3 is communicated with the liquid cooling plate through the liquid supply pipeline system 5 and the liquid return pipeline system 6 to form a cooling circulation loop, and specifically, the liquid supply pipeline system 5 and the liquid return pipeline system 6 are both pipelines composed of plastic pipes, steel pipes and adapter joints.

[0068] As shown in the Figure 1 The charging and discharging device 4 is arranged on the vehicle frame 11 or the first longitudinal beam 121 and the second longitudinal beam 122 through fasteners, and the charging and discharging device 4 is electrically connected with the energy storage system 2 through a wire harness assembly, and the charging and discharging device 4 is used for inputting or outputting current; it should be noted that the charging and discharging device 4 is used for inputting or outputting current, which means that the charging and discharging device 4 can both input current and output current, but the input current and the output current are in different time periods, or the input current and the output current use different interfaces.

[0069] As shown in the Figure 17 The energy storage system 2 and the water cooling unit 3 are arranged at intervals with the top plate 111 to form a drainage channel 8.

[0070] In the specific use process, a plurality of battery clusters 21 are fixed side by side on the first longitudinal beam 121 and the second longitudinal beam 122 along the first direction X, and the plurality of battery modules 211 in the battery cluster 21 are in a stacked state along the second direction Y, that is, the battery modules 211 are arranged in an array on the vehicle frame 11 along the first direction X and the second direction Y, and the plurality of battery modules 211 in each battery cluster 21 are in a stacked state, which has a high degree of density and can improve the space utilization rate, avoid space waste, and improve the overall energy density of the power supply vehicle.

[0071] And a plurality of battery clusters 21 are directly mounted on the first longitudinal beam 121 and the second longitudinal beam 122, and an outer sealing box is not arranged to perform cladding, so that the battery module 211 can be directly contacted with the external environment to perform heat exchange, and the liquid cooling plate arranged in the battery module 211 can quickly spread the heat generated by the energy storage system 2, ensure the stability of the operating temperature of the energy storage system 2, avoid high temperature of the energy storage system 2, cause flammable and explosive, and improve the safety of the power vehicle.

[0072] In this embodiment, the energy storage system 2 and the water cooling unit 3 are arranged on the first longitudinal beam 121 and the second longitudinal beam 122 and are spaced apart from the top plate 111 to form a drainage channel 8, so that rainwater or cleaning water can flow back into the drainage channel 8 from the energy storage system 2 and the water cooling unit 3, thereby realizing rapid drainage, reducing the accumulation of water on the vehicle frame 11, thereby reducing the corrosion and aging speed of the vehicle body and its accessories, and reducing safety hazards.

[0073] In one embodiment, as shown in Figure 1 , Figure 14 and Figure 15 , the battery cluster 21 further includes a plurality of fixing rods. Specifically, the fixing rod is a steel support rod body, both ends of which are provided with threads and are screwed with nuts. A plurality of first fixing holes 2111 are arranged on the battery module 211 around the second direction Y, and a plurality of second fixing holes 2121 are arranged on the control module 212 around the second direction Y. The number of first fixing holes 2111 and second fixing holes 2121 is 4-8. Specifically, the battery module 211 is uniformly distributed with four first fixing holes 2111 along the second direction Y, and the battery module 211 is rectangular, i.e., one first fixing hole 2111 is arranged at each corner of the battery module 211. The control module 212 is uniformly distributed with four second fixing holes 2121 along the second direction Y, and the control module 212 is rectangular, i.e., one second fixing hole 2121 is arranged at each corner of the control module 212. Of course, other schemes are also possible, such as the number of first fixing holes 2111 and second fixing holes 2121 being 6 or 8.

[0074] In each battery cluster 21, the second fixing holes 2121 on the control module 212 and the first fixing holes 2111 on the plurality of battery modules 211 correspond to each other along the second direction Y. The fixing rod passes through the second fixing holes 2121 and each first fixing hole 2111 along the second direction Y and is connected with the vehicle frame 11. Specifically, the fixing rod passes through the first fixing holes 2111 on each battery module 211 and the second fixing holes 2121 on the control module 212 to thread the plurality of battery modules 211 and the control module 212 along the second direction Y. One end of the fixing rod close to the vehicle frame 11 is connected with the vehicle frame 11 through a nut, and the other end of the fixing rod away from the vehicle frame 11 is in limiting contact with the top of the battery module 211 away from the vehicle frame 11.

[0075] In this embodiment, the battery cluster 21 is connected to the vehicle frame 11 by arranging a plurality of first fixing holes 2111 on the battery modules 211 in the circumferential direction of the second direction Y, arranging a plurality of second fixing holes 2121 on the control module 212 in the circumferential direction of the second direction Y, and passing a fixing rod through the plurality of first fixing holes 2111 on the plurality of battery modules 211 and the second fixing holes 2121 on the control module 212, which is simple in structure, high in connection strength, and convenient to disassemble.

[0076] In some embodiments not shown, the battery cluster 21 further comprises a fixing frame, which can be welded from triangular iron, and the plurality of battery modules 211 and the control module 212 are accommodated in the fixing frame, and the fixing frame is connected to the vehicle frame 11 by bolts and nuts.

[0077] In one embodiment, as shown in Figure 3 and Figure 14 The battery module 211 comprises a first accommodating frame 2112, a liquid cooling plate, and at least one battery cell, the liquid cooling plate is located at the inner bottom of the first accommodating frame 2112, and the battery cell is located in the first accommodating frame 2112, and the upper part of the first accommodating frame 2112 is open. Specifically, the first accommodating frame 2112 is a plastic frame body or a metal frame body, and the bottom and the side wall of the first accommodating frame 2112 are sealed with a plate material, which can be a metal plate or a plastic plate, and the metal plate is preferred because of its good heat conduction and heat dissipation performance.

[0078] As shown in Figure 15 The control module 212 comprises a second accommodating frame 2122 and a control circuit, the control circuit is arranged in the second accommodating frame 2122, and the upper part of the second accommodating frame 2122 is open; specifically, the second accommodating frame 2122 is a plastic frame body or a metal frame body.

[0079] Among any two adjacent layers of the first accommodating frames 2112, the first accommodating frame 2112 located at the upper part covers the opening of the first accommodating frame 2112 located at the lower part; the second accommodating frame 2122 covers the opening of the first accommodating frame 2112 located at the lower part of the second accommodating frame 2122; specifically, the opening on the first accommodating frame 2112 is sealed by the bottom surface of the first accommodating frame 2112 located at the upper part.

[0080] More specifically, the battery cell can be a single battery monomer or a plurality of battery monomers stacked together, and the battery monomer can be a square battery or a cylindrical battery, etc.; when the battery cell is a plurality of battery cells, the battery cells are arranged side by side in the first accommodating frame 2112.

[0081] Specifically, as shown in Figure 14As shown, the first fixing hole 2111 is arranged on the first accommodating frame 2112 and connected and fixed with the frame 11 through the fixing rod. Figure 15 As shown, the second fixing hole 2121 is arranged on the second accommodating frame 2122 and connected and fixed with the frame 11 through the fixing rod.

[0082] In this embodiment, the battery unit and the liquid cooling plate are fixed and integrated through the first accommodating frame 2112, which can be fixed on the frame 11 and improve the stability of the battery unit on the power supply vehicle, preventing problems such as falling and collapse; at the same time, a plurality of battery units and liquid cooling plates are fixed and integrated in the first accommodating frame 2112 to form a battery module 211, and the different battery modules 211 are stacked and connected in series and parallel to realize the capacity adjustment of the power supply vehicle.

[0083] In one embodiment, as shown in the figure, Figure 13 As shown, the battery cluster 21 further comprises an upper cover plate 213, which can be a plastic plate or a metal cover plate coated with a rust-proof paint layer, and the upper cover plate 213 covers the opening of the second accommodating frame 2122.

[0084] In this embodiment, the upper cover plate 213 closes the opening of the second accommodating frame 2122, avoiding foreign matters from falling into the second accommodating frame 2122 and causing problems such as short circuit.

[0085] In one embodiment, as shown in the figure, Figure 1 As shown, the power supply vehicle further comprises two baffle assemblies 7, which are plastic plates or metal plates coated with a rust-proof paint layer, and the two baffle assemblies 7 are arranged on the battery cluster 21 through a clamping structure and are arranged apart from the energy storage system 2 and shield the two sides of the energy storage system 2 along the third direction Z, which intersects with the first direction X and the second direction Y.

[0086] Specifically, one end of the baffle along the first direction X is rotatably connected with the frame 11, and the other end of the baffle along the first direction X is clamped with the frame 11, which can open the baffle to enable the energy storage system 2 to quickly exchange heat with the external environment when the energy storage system 2 is in an environment with high temperature, further improving the cooling effect of the energy storage system 2.

[0087] In this embodiment, the arrangement of the baffle can shield the two sides of the energy storage module along the third direction Z, preventing personnel from contacting the wire harness in the battery cluster 21 and causing safety accidents.

[0088] In one embodiment, as shown in the figure, Figure 1As shown, the charge-discharge device 4 includes a direct-current charge-discharge module 41 and an alternating-current charge-discharge module 42. Specifically, the direct-current charge-discharge module 41 includes at least one electrical cabinet, and the alternating-current charge-discharge module 42 includes at least one electrical cabinet. The alternating-current charge-discharge module 42 and the water-cooled unit 3 are respectively arranged at two ends of the energy storage system 2 along the first direction X, and the direct-current charge-discharge module 41 is arranged on the lower side of the vehicle frame 11.

[0089] Specifically, the alternating-current charge-discharge module 42, the energy storage system 2, and the water-cooled unit 3 are sequentially arranged on the vehicle frame 11 along the first direction X and are fixed on the vehicle frame 11 by bolts. Generally, the alternating-current charge-discharge module 42 is located at the tail of the vehicle frame 11, facilitating the staff to make connections, and the water-cooled unit 3 is located at the head of the vehicle frame 11 and generally does not need to be operated.

[0090] The direct-current charge-discharge module 41 is arranged on the lower part of the vehicle frame 11, facilitating the staff to take it.

[0091] In this embodiment, the charge-discharge device 4 includes the direct-current charge-discharge module 41 and the alternating-current charge-discharge module 42, which can realize the input and output of alternating current and the input and output of direct current, can be suitable for multiple use scenarios and power supply scenarios, and improves the applicability of the power supply vehicle.

[0092] Meanwhile, the alternating-current charge-discharge module 42 is arranged at one end of the vehicle frame 11, which can facilitate the staff to operate, and the direct-current charge-discharge module 41 is arranged on the lower part of the vehicle frame 11, which has a simple structure and improves the rationality of the overall arrangement of the power supply vehicle.

[0093] In one specific embodiment, as shown in Figure 1 and Figure 11 The direct-current charge-discharge module 41 includes two front direct-current charge-discharge cabinets 411, which are respectively arranged on the lower part of the vehicle frame 11 on both sides and in front of the rear wheels of the trailer 1. Specifically, the two front direct-current charge-discharge cabinets 411 are connected to the vehicle frame 11 by bolts, as shown in Figure 11 Each front direct-current charge-discharge cabinet 411 is provided with at least one charging gun, and the number of charging guns in each front direct-current charge-discharge cabinet 411 is 2-5, preferably 3, which meets the demand for simultaneous charge-discharge of multiple devices.

[0094] Specifically, the front direct-current charge-discharge cabinet 411 is provided with a plurality of fixing seats corresponding to the charging guns, and the charging guns are inserted into the fixing seats. The front direct-current charge-discharge cabinet 411 is provided with a plurality of hanging columns arranged at intervals to respectively hang the connection cables of the heads of the charging guns.

[0095] In this embodiment, the direct current charging and discharging module 41 includes two front direct current charging and discharging cabinets 411 arranged below the vehicle frame 11 on both sides and in front of the rear wheels of the trailer 1, which makes full use of the empty space of the chassis of the trailer 1, avoids interference with the traction mechanism, reduces the overall gravity center, and improves the driving stability.

[0096] In one embodiment, as shown in Figure 1 , Figure 2 and Figure 11 , the direct current charging and discharging module 41 further includes two rear direct current charging and discharging cabinets 412 arranged at the lower part of the vehicle frame 11 on both sides and behind the rear wheels of the trailer 1, as shown in Figure 11 , at least one charging gun is arranged in the rear direct current charging and discharging cabinet 412, and the number of charging guns is preferably 1-2, preferably 1, which can increase the direct current charging and discharging interface of the power supply vehicle.

[0097] Specifically, at least one fixing seat is arranged in the rear direct current charging and discharging cabinet 412, and the fixing seat corresponds to the charging gun one by one, and the charging gun is inserted into the fixing seat; a plurality of interval arranged hanging columns are arranged in the rear direct current charging and discharging cabinet 412 to respectively hang the connection cables of the heads of the charging guns.

[0098] In this embodiment, by arranging the rear direct current charging and discharging cabinet 412 below the vehicle frame 11 on both sides and behind the rear wheels, the direct current charging and discharging interface of the whole vehicle can be increased, more electrical equipment can be powered, and direct current power supply can be conveniently performed at the tail of the vehicle frame 11.

[0099] In one embodiment, as shown in Figures 11 to 12 , a plurality of switching components 4111 are arranged in the front direct current charging and discharging cabinet 411, one end of the switching component 4111 is used for plugging with the charging gun, and the other end of the switching component 4111 is used for plugging with the external charging gun.

[0100] In this embodiment, by arranging a plurality of switching components 4111, the connection between the charging gun in the direct current charging module and the external direct current charging gun can be realized, so that the power supply vehicle can directly use the external direct current charging gun for power supply, thereby improving the power supply application scene of the power supply vehicle.

[0101] In one specific embodiment, as shown in Figure 12 , the switching component 4111 includes a first plug seat 41111, a connection line 41112, and a second plug seat 41113, the two ends of the connection line 41112 are connected with the first plug seat 41111 and the second plug seat 41113 respectively, and one of the first plug seat 41111 and the second plug seat 41113 is used for plugging with the charging gun, and the other is used for plugging with the external charging gun.

[0102] Specifically, the connecting line 41112 is a cable, and the length of the cable can be set according to actual needs, and is generally 1 m to 5 m, and is preferably 2 m.

[0103] In this embodiment, the adapter component 4111 includes the first socket 41111, the connecting line 41112, and the second socket 41113, and the connecting line 41112 can increase the length of the adapter component 4111, so that the distance between the charging gun on the power supply vehicle and the external charging gun can be increased, and the applicability of the power supply vehicle is further improved.

[0104] In one embodiment, as shown in Figure 11 each battery cluster 21 is connected to one charging gun in the DC charging and discharging module 41, so that when multiple charging guns are simultaneously discharged, the charging and discharging power between different charging guns can be prevented from affecting each other, and the stability of charging and discharging can be improved.

[0105] In one embodiment, the AC charging and discharging module 42 is provided with at least one AC charging and discharging port, and each battery cluster 21 is in communication with the AC charging and discharging port through a switch. Specifically, the switch is an intelligent electronic switch.

[0106] In a specific use process, according to the use needs, for example, eight battery clusters 21, two of which are used for DC discharging, or the two battery clusters 21 have no power reserve, the switches of the remaining six battery clusters 21 can be connected to the AC charging and discharging port for AC discharging, so as to avoid mutual influence and improve the stability of AC and DC charging and discharging of the power supply vehicle.

[0107] In this embodiment, by connecting each battery cluster 21 to the AC charging and discharging interface through a switch, the mutual influence between different battery clusters 21 during different discharging tasks can be avoided, and the stability of charging and discharging of the power supply vehicle is improved.

[0108] In one embodiment, as shown in Figure 4 the first longitudinal beam 121 includes a first beam body 1211 and a first side cover plate, the first beam body 1211 is provided with an opening on the side surface facing the outer side of the vehicle frame 11, and the first side cover plate covers the opening on the first beam body 1211 and can be detached.

[0109] And / or, the second longitudinal beam 122 includes a second beam body 1221 and a second side cover plate, the second beam body 1221 is provided with an opening on the side surface facing the outer side of the vehicle frame 11, and the second side cover plate covers the opening on the second beam body 1221 and can be detached.

[0110] Specifically, the first beam body 1211 and the second beam body 1221 are both channel steel, and the cross section of the channel steel is C-shaped. The first side cover plate and the second side cover plate can be both steel plates or plastic plates, and are usually fixed on the first beam body 1211 and the second beam body 1221 by bolts respectively.

[0111] In the assembly process of the power supply vehicle, the side faces of the first beam body 1211 and the second beam body 1221 facing the outer side of the vehicle frame 11 are provided in an open manner. During the process of connecting the energy storage device, the water-cooled unit 3, the charging and discharging device 4 and the top faces of the first beam body 1211 and the second beam body 1221 by bolts, tools can be conveniently inserted into the first beam body 1211 or the second beam body 1221 for operation. After the operation is completed, the first side cover plate and the second side cover plate are connected to the first beam body 1211 and the second beam body 1221 by bolts respectively.

[0112] In this embodiment, the side faces of the first beam body 1211 and the second beam body 1221 facing the outer side of the vehicle frame 11 are provided in an open manner, so that the connection operation of the energy storage device, the water-cooled unit 3, the charging and discharging device 4 and other parts with the first longitudinal beam 121 and the second longitudinal beam 122 is facilitated, thereby improving the operation efficiency and simplifying the fixing structure.

[0113] In one embodiment, as shown in Figure 4 and Figure 5 , the wire harness assembly includes a plurality of DC wire harnesses 43 and a plurality of AC wire harnesses 44. Specifically, the DC wire harnesses 43 and the AC wire harnesses 44 are both cables or other wire harnesses with stronger power transmission capacity. Figure 5 As shown in , the first ends of the plurality of DC wire harnesses 43 are connected to the control modules 212 of the plurality of battery clusters 21 respectively, and the second ends of the plurality of DC wire harnesses 43 penetrate through the first longitudinal beam 121 or the second longitudinal beam 122 and are in communication with the charging and discharging device 4.

[0114] Figure 4 As shown in , the first ends of the plurality of AC wire harnesses 44 are connected to the control modules 212 of the plurality of battery clusters 21 respectively, and the second ends of the plurality of AC wire harnesses 44 penetrate through the first longitudinal beam 121 or the second longitudinal beam 122 and are in communication with the charging and discharging device 4.

[0115] Figure 7 Specifically, the first beam body 1211 includes a first upper top plate 111, a first lower bottom plate and a first inner side plate. The edges of the first upper top plate 111, the first inner side plate and the first lower bottom plate are connected in sequence to form a channel steel structure, as shown in

[0116] The second beam body 1221 comprises a second upper top plate 111, a second lower bottom plate and a second inner side plate, edges of the second upper top plate 111, the second inner side plate and the second lower bottom plate are sequentially connected to form a channel steel structure, and a plurality of through holes 124 are arranged on the second upper top plate 111 and the second inner side plate, for the DC wire harness 43 or the AC wire harness 44 to pass into the second longitudinal beam 122 from the through hole 124 of the second upper top plate 111, and then pass out from the through hole 124 on the second inner side plate.

[0117] In this embodiment, the DC wire harness 43 and the AC wire harness 44 both pass through the first longitudinal beam 121 or the second longitudinal beam 122 to communicate with the charging and discharging device 4, which can simplify the arrangement structure of the DC wire harness 43 and the AC wire harness 44, thereby improving the energy density of the whole vehicle.

[0118] In one embodiment, as shown in Figure 8 and Figure 9 , the liquid supply pipeline system 5 comprises a liquid supply main line 51 and a plurality of liquid supply branch lines 52, specifically, the liquid supply main line 51 is a steel pipe or a plastic pipe, the liquid supply main line 51 communicates with the outlet of the water cooling unit 3, and a part of the liquid supply main line 51 is located between the first longitudinal beam 121 and the second longitudinal beam 122, the liquid supply main line 51 is fixed on the vehicle frame 11 by a support, the first ends of the plurality of liquid supply branch lines 52 are arranged at intervals and communicate with the liquid supply main line 51, and the second ends of the plurality of liquid supply branch lines 52 all pass through the first longitudinal beam 121 and respectively communicate with the liquid cooling plates in the plurality of battery clusters 21.

[0119] Specifically, the liquid supply branch line 52 can be a hose, or a part of the liquid supply branch line 52 is a hose and the other part is a hard pipe, the hard pipe part communicates with the liquid supply main line 51, and the hose part is used to communicate with each liquid cooling plate; as shown in Figure 8 , a plurality of avoiding holes are arranged on the first upper top plate 111 and the first inner side plate, for the liquid supply branch line 52 to pass into the first longitudinal beam 121 from the through hole 124 of the first upper top plate 111, and then pass out from the through hole 124 on the first inner side plate.

[0120] As shown in Figure 6 , the liquid return pipeline system 6 comprises a liquid return main line 61 and a plurality of liquid return branch lines 62, the liquid return main line 61 communicates with the inlet of the water cooling unit 3, a part of the liquid return main line 61 is located between the first longitudinal beam 121 and the second longitudinal beam 122, the first ends of the plurality of liquid return branch lines 62 are arranged at intervals and communicate with the liquid return main line 61, and the second ends of the plurality of liquid return branch lines 62 all pass through the second longitudinal beam 122 and respectively communicate with the liquid cooling plates in the plurality of battery clusters 21.

[0121] Specifically, the liquid return branch 62 can be a hose, or part of it can be a hose and part of it can be a hard pipe, the hard pipe part is in communication with the liquid return trunk 61, and the hose part is used to communicate with each liquid cooling plate; The second top plate 111 and the second inner side plate are both provided with a plurality of avoiding holes for the liquid return branch 62 to pass through the through hole 124 of the second top plate 111 into the second longitudinal beam 122, and then pass through the through hole 124 of the first inner side plate.

[0122] In this embodiment, by arranging the liquid supply trunk 51 and the liquid return trunk 61 between the first longitudinal beam 121 and the second longitudinal beam 122, and arranging the liquid supply branch 52 to pass through the first longitudinal beam 121 to communicate with the inlet of each liquid cooling plate, and arranging the liquid return branch 62 to pass through the second longitudinal beam 122 to communicate with the outlet of each liquid cooling plate, the arrangement structure of the liquid return branch 62 and the liquid supply branch 52 can be simplified, so as to improve the compactness of the power supply vehicle and improve the energy density of the power supply vehicle.

[0123] In one embodiment, as shown in Figure 16 The first longitudinal beam 121 is provided with a plurality of first bearing members 1212, the plurality of first bearing members 1212 are arranged at intervals along the first direction X and are arranged at intervals with the top plate 111, and the liquid supply trunk 51 is arranged on the plurality of first bearing members 1212; The second longitudinal beam 122 is provided with a plurality of second bearing members 1222, the plurality of second bearing members 1222 are arranged at intervals along the second direction Y and are arranged at intervals with the top plate 111, and the liquid return trunk 61 is arranged on the plurality of second bearing members 1222.

[0124] Specifically, the first bearing member 1212 and the second bearing member 1222 are connected with the first longitudinal beam 121 and the second longitudinal beam 122 respectively by bolts, the first bearing member 1212 and the second bearing member 1222 can be in the form of a rod, or can be made of a sheet-shaped plate, and the lower part of the sheet-shaped plate can be provided with a reinforcing rib.

[0125] In this embodiment, the arrangement of the first bearing member 1212 and the second bearing member 1222 can isolate the liquid supply trunk 51 and the liquid return trunk from the top plate 111, so as to facilitate drainage.

[0126] In one embodiment, as shown in Figure 16 The trailer 1 further comprises a first bearing frame 13 and a second bearing frame 14, the first bearing frame 13 and the second bearing frame 14 are arranged at intervals with the top plate 111, the first bearing frame 13 is arranged on the plurality of first bearing members 1212 by bolt screwing or by steel wire connection, and is used to bear the wire harness assembly located between the first longitudinal beam 121 and the second longitudinal beam 122, the second bearing frame 14 is arranged on the plurality of second bearing members 1222 by bolt screwing or by steel wire connection, and is used to bear the wire harness assembly located between the first longitudinal beam 121 and the second longitudinal beam 122.

[0127] Specifically, the first bearing frame 13 and the second bearing frame 14 are plastic parts or metal parts sprayed with a rust-proof paint layer.

[0128] Preferably, the first bearing frame 13 and the second bearing frame 14 are both net-like hollow structures.

[0129] In this embodiment, by arranging the first bearing frame 13 and the second bearing frame 14, the wire harness between the first longitudinal beam 121 and the second longitudinal beam 122 can be isolated from the top plate 111, so as to avoid affecting drainage.

[0130] In one embodiment, as shown in Figure 10 The first beam body 1211 and the second beam body 1221 are both provided with a plurality of reinforcing parts 123 spaced apart along the first direction X. Specifically, the reinforcing part 123 is a rectangular plate body or a plate body with an opening for avoiding interference. The reinforcing part 123 is connected to the first beam body 1211 or the second beam body 1221 by welding or bolting.

[0131] In this embodiment, the reinforcing part 123 can improve the bending resistance of the first beam body 1211 and the second beam body 1221, and improve the load-bearing capacity of the vehicle frame 11.

[0132] In one embodiment, as shown in Figure 16 and Figure 17 The top plate 111 is provided with a plurality of water guide grooves 1111. The plurality of water guide grooves 1111 extend along the first direction X. Along the second direction Y, the height of the water guide groove 1111 near the head of the trailer 1 is lower than the height of the water guide groove 1111 at the tail of the trailer 1. Specifically, the water guide groove 1111 can be inclined to the front of the vehicle frame 11 to quickly discharge rainwater to the ground in front of the vehicle frame 11, so as to prevent too much rainwater from collecting on the vehicle frame 11 and reduce the risk of electric shock, thereby improving safety performance.

[0133] In one specific embodiment, as shown in Figure 17 The cross section of the water guide groove 1111 is V-shaped, and the cross section of the water guide groove 1111 gradually increases along the direction close to the head of the vehicle frame 11, so that more water can be gradually accommodated from the tail of the trailer 1 to the head of the trailer 1, thereby improving the drainage speed.

[0134] In one embodiment, as shown in Figure 17 The cross section of the top plate 111 along the first direction X is concave. The plurality of water guide grooves 1111 are arranged at the middle of the top plate 111 along the third direction Z. Specifically, the cross section of the top plate 111 along the first direction X is concave arc-shaped or V-shaped.

[0135] In this embodiment, the top plate 111 is concave, which can improve the flow rate of water to the water guide groove 1111 in the middle of the top plate 111, and improve the drainage speed.

[0136] Although the embodiments of the present application are described with reference to the drawings, various modifications and changes can be suggested to one skilled in the art, and such modifications and changes are within the scope of the present application as defined by the appended claims.

Claims

1. A power car drainage structure, characterized by, The trailer (1) comprises a frame (11) and a top plate (111) arranged on the top of the frame (11); a skid-mounted base (12) comprising a first longitudinal beam (121) and a second longitudinal beam (122) arranged on the top plate (111) in a third direction (Z); an energy storage system (2) comprising a plurality of battery clusters (21) arranged side by side on the first longitudinal beam (121) and the second longitudinal beam (122) in a first direction (X), wherein each battery cluster (21) comprises a control module (212) and a plurality of battery modules (211) arranged in a second direction (Y), the control module (212) is arranged on the upper part of the plurality of battery modules (211), and a liquid cooling plate is arranged in each battery module (211), wherein the first direction (X) intersects the second direction (Y); and a water cooling unit (3) arranged on the first longitudinal beam (121) and the second longitudinal beam (122), which is in communication with the liquid cooling plate through a liquid supply pipeline system (5) and a liquid return pipeline system (6) to form a cooling circulation loop. The energy storage system (2) and the water cooling unit (3) are arranged in a spaced manner with the top plate (111) to form a drainage channel (8). A plurality of water guide grooves (1111) are arranged on the top plate (111) and extend in the first direction (X), and the height of the water guide grooves (1111) near the head of the trailer (1) is lower than the height of the water guide grooves (1111) at the tail of the trailer (1) in the second direction (Y). The cross section of the top plate (111) in the first direction (X) is concave, and a plurality of water guide grooves (1111) are arranged in the middle of the top plate (111) in the third direction (Z). The liquid supply pipeline system (5) comprises a liquid supply trunk (51) and a plurality of liquid supply branches (52), the liquid supply trunk (51) is in communication with the outlet of the water cooling unit (3), and a part of the liquid supply trunk (51) is located between the first longitudinal beam (121) and the second longitudinal beam (122), the first ends of the plurality of liquid supply branches (52) are arranged in a spaced manner and are in communication with the liquid supply trunk (51), and the second ends of the plurality of liquid supply branches (52) penetrate the first longitudinal beam (121) and are in communication with the liquid cooling plates in the plurality of battery clusters (21), respectively. ​ 2. The power cart drain structure of claim 1, wherein ​ 3. The power cart drain structure of claim 2, wherein, ​ 4. The power cart drain structure according to any one of claims 1 to 3, characterized by ​ The liquid return pipeline system (6) comprises a liquid return trunk (61) and a plurality of liquid return branches (62), the liquid return trunk (61) is in communication with the inlet of the water cooling unit (3), a part of the liquid return trunk (61) is located between the first longitudinal beam (121) and the second longitudinal beam (122), the first ends of the plurality of liquid return branches (62) are arranged at intervals and are in communication with the liquid return trunk (61), and the second ends of the plurality of liquid return branches (62) penetrate the second longitudinal beam (122) and are in communication with the liquid cooling plates in the plurality of battery clusters (21) respectively. The liquid supply trunk (51), the plurality of liquid supply branches (52), the liquid return trunk (61) and the plurality of liquid return branches (62) are arranged at intervals with the top plate (111).

5. The power cart drain structure of claim 4, wherein A plurality of first carriers (1212) are arranged on the first longitudinal beam (121), the plurality of first carriers (1212) are arranged at intervals along the first direction (X) and are arranged at intervals with the top plate (111), and the liquid supply trunk (51) is arranged on the plurality of first carriers (1212). A plurality of second carriers (1222) are arranged on the second longitudinal beam (122), the plurality of second carriers (1222) are arranged at intervals along the second direction (Y) and are arranged at intervals with the top plate (111), and the liquid return trunk (61) is arranged on the plurality of second carriers (1222).

6. The power cart drain structure of claim 5, wherein The trailer (1) further comprises a first carrier frame (13) and a second carrier frame (14), the first carrier frame (13) and the second carrier frame (14) are arranged at intervals with the top plate (111), the first carrier frame (13) is arranged on the plurality of first carriers (1212) and is used for carrying the wire harness assembly located between the first longitudinal beam (121) and the second longitudinal beam (122), and the second carrier frame (14) is arranged on the plurality of second carriers (1222) and is used for carrying the wire harness assembly located between the first longitudinal beam (121) and the second longitudinal beam (122). The first carrier frame (13) and the second carrier frame (14) are both net-like hollow structures.

7. The power cart drain structure of claim 6, wherein The charging and discharging device (4), the energy storage system (2) and the water cooling unit (3) are arranged at intervals along the first direction (X) on the first longitudinal beam (121) and the second longitudinal beam (122).

8. The power cart drain structure of claim 6, wherein, The plurality of battery clusters (21) are arranged at intervals along the first direction (X) on the first longitudinal beam (121) and the second longitudinal beam (122).

9. The power cart drain structure according to any one of claims 1 to 3, characterized by The trailer (1) comprises:

10. A power cart characterized by, The power supply vehicle drainage structure according to any one of claims 1-9. The power supply vehicle drainage structure according to any one of claims 1-9.

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