Liquid cooling unit and energy storage cabinet

Abstract

The utility model provides a liquid cooling unit and an energy storage cabinet, and belongs to the technical field of energy storage. The liquid cooling unit comprises a first heat exchanger, a second heat exchanger, a first movable baffle piece and a frame. The first heat exchanger and the second heat exchanger are fixedly arranged in the frame in a spaced mode, an included angle is formed between the heat dissipation face of the first heat exchanger and the heat dissipation face of the second heat exchanger, a cavity is formed between the first heat exchanger and the second heat exchanger, and in the height direction of the frame, a first opening is formed in the top of the cavity, and a second opening is formed in the bottom of the cavity. The area of the first opening is larger than that of the second opening; in the height direction of the frame, the first movable baffle is movably arranged below the second opening. According to the liquid cooling unit provided by the utility model, the first movable baffle can be taken out to clean dust, accumulated sand and the like in the cavity, so that the problem of high cleaning difficulty of the V-shaped heat exchange device is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heat storage, particularly to liquid cooling unit and energy storage cabinet. BACKGROUND

[0002] The energy storage cabinet is widely used in the field of electrochemical energy storage as a storage form of energy storage system. The energy storage cabinet comprises a box body and a battery pack and a liquid cooling unit arranged in the box body, and the liquid cooling unit is used for heat dissipation treatment of the battery pack.

[0003] In the related art, the liquid cooling unit usually adopts a V-shaped heat exchange device, and the opening of the V-shaped heat exchange device faces upward as an air outlet. Air enters from the side and blows out from the top air outlet, realizing heat exchange between the refrigerant and the air.

[0004] However, in a use scenario with high dust concentration, dust will enter the V-shaped heat exchange device from the top air outlet and accumulate on the surface or bottom of the V-shaped heat exchange device, causing dirty blockage of the V-shaped heat exchange device, affecting air flow efficiency, and reducing the energy efficiency of the liquid cooling unit. SUMMARY

[0005] The utility model provides liquid cooling unit and energy storage cabinet, can solve the technical problem existing in the related art.

[0006] Specifically, the technical solution is as follows.

[0007] On the one hand, a liquid cooling unit is provided, which comprises a first heat exchanger, a second heat exchanger, a first movable baffle member and a frame. The first heat exchanger and the second heat exchanger are fixedly arranged in the frame at intervals, and the heat dissipation surface of the first heat exchanger and the heat dissipation surface of the second heat exchanger are arranged at an angle. The first heat exchanger and the second heat exchanger have a V-shaped cavity therebetween. In the height direction of the frame, the top of the V-shaped cavity has a first opening, and the bottom of the V-shaped cavity has a second opening. The area of the first opening is greater than the area of the second opening. In the height direction of the frame, the first movable baffle is movably arranged below the second opening.

[0008] The liquid cooling unit provided by the utility model is characterized in that the first heat exchanger and the second heat exchanger are arranged in a V shape, and the two cooperate to form a V-shaped heat exchange device, that is, the first heat exchanger is located at one side of the V-shaped heat exchange device, and the second heat exchanger is located at the other side of the V-shaped heat exchange device, and the V-shaped cavity is provided with a second opening at the bottom, and a first movable baffle is arranged below the second opening, dust, sand and the like falling from the second opening can be accumulated on the first movable baffle, and when the dust, sand and the like are accumulated to a certain degree, the first movable baffle can be taken out, so that the dust, sand and the like in the V-shaped cavity can be easily cleaned, and the problem that the dust, sand and the like at the bottom of the V-shaped heat exchange device are difficult to clean is solved.

[0009] In some possible implementation manners, the liquid cooling unit further comprises a guide rail, the guide rail is fixedly connected to the frame, and the first movable baffle is in sliding connection with the guide rail.

[0010] By slidingly arranging the first movable baffle on the guide rail, the first movable baffle can be taken out along the guide rail, and the operation is more simple, and the cleaning difficulty of the dust and sand is further reduced.

[0011] In some possible implementation manners, the first movable baffle is in sliding connection with the guide rail along the extension direction of the guide rail, and the extension direction of the guide rail is perpendicular to the height direction of the frame.

[0012] Through the above arrangement, the first heat exchanger and the second heat exchanger are arranged at intervals along the extension direction of the guide rail, and the extension direction of the guide rail is perpendicular to the height direction of the frame, so that when the first movable baffle slides along the guide rail, the first movable baffle can be taken out along the horizontal direction perpendicular to the height direction of the frame, the dust and sand on the first movable baffle cannot flow out, the operation is convenient, and the dust and sand on the first movable baffle can be conveniently cleaned.

[0013] In some possible implementation manners, the extension direction of the guide rail is parallel to the width direction of the frame.

[0014] The width direction of the frame corresponds to the width direction of the V-shaped heat exchange device, and for the V-shaped heat exchange device in the liquid cooling unit, the width direction is usually much smaller than the length direction, the first movable baffle can be taken out along the width direction of the V-shaped heat exchange device when the first movable baffle slides along the guide rail, the sliding stroke of the first movable baffle when taken out and put back is shorter, the operation is more convenient, and the cleaning difficulty of the dust and sand is further reduced.

[0015] In some possible implementation manners, the extension direction of the guide rail is parallel to the length direction of the frame.

[0016] The length direction of the frame is also the length direction of the V-shaped heat exchange device formed by the first heat exchanger and the second heat exchanger. When the first movable baffle slides along the guide rail, the first movable baffle can be pulled out from one end in the length direction of the V-shaped heat exchange device, that is, the first movable baffle can be pulled out from the end face of the V-shaped cavity. This scheme is suitable for the scene where the space in the width direction of the V-shaped heat exchange device is limited.

[0017] In some possible implementation manners, the heat dissipation surface of the first heat exchanger is parallel to the height direction of the frame, and the heat dissipation surface of the second heat exchanger is arranged to be inclined relative to the height direction of the frame.

[0018] The guide rail has an open end located on the side of the first heat exchanger away from the second heat exchanger, and the first movable baffle is arranged to pass through the open end.

[0019] In this embodiment, the first heat exchanger is arranged in the height direction of the frame and the second heat exchanger is arranged to be inclined in the height direction of the frame, that is, the first heat exchanger and the second heat exchanger are arranged asymmetrically. At this time, since the first heat exchanger occupies less horizontal space, the first heat exchanger can be arranged close to the side of the liquid cooling unit. The side of the first heat exchanger away from the second heat exchanger also corresponds to the side close to the liquid cooling unit. The first movable baffle slides to the side of the first heat exchanger away from the second heat exchanger along the horizontal sliding rail, that is, the first movable baffle can directly slide to the side of the liquid cooling unit, the sliding stroke is further shortened, and the cleaning operation is convenient, and the cleaning difficulty is further reduced.

[0020] In some possible implementation manners, the first movable baffle has a first end close to the second heat exchanger and a second end opposite to the first end.

[0021] The first end of the first movable baffle is rotationally connected to the frame, and the second end of the first movable baffle is detachably connected to the frame.

[0022] Through the above arrangement, when the dust or sand on the first movable baffle is cleaned, the first movable baffle does not need to be removed. Only the second end of the first movable baffle needs to be opened, and the dust or sand on the first movable baffle can automatically flow out under the action of gravity or external force driving the first movable baffle to rotate around the first end, so that the cleaning of the V-shaped heat exchange device is realized.

[0023] In some possible implementation manners, the heat dissipation surface of the first heat exchanger is parallel to the height direction of the frame, and the heat dissipation surface of the second heat exchanger is arranged to be inclined relative to the height direction of the frame. The first end of the first movable baffle is located on the side of the second heat exchanger away from the first heat exchanger, and the second end of the first movable baffle is located on the side of the first heat exchanger away from the second heat exchanger.

[0024] Through the above arrangement, for the special space requirement in the liquid cooling unit, the first heat exchanger is arranged along the height direction of the frame, and the second heat exchanger is arranged obliquely along the height direction of the frame, that is, the first heat exchanger and the second heat exchanger are asymmetrically arranged, at this time, since the first heat exchanger occupies less horizontal space, it can be arranged close to the side of the liquid cooling unit, and the side of the first heat exchanger away from the second heat exchanger also corresponds to the side of the liquid cooling unit, the end of the first movable baffle close to the first heat exchanger can be turned down to open, and the first movable baffle can directly pour the dust or accumulated sand on it outward from the side of the liquid cooling unit, which is convenient to operate and further reduces the cleaning difficulty.

[0025] In some possible implementations, the second end of the first movable baffle is screw-connected or snap-connected with the frame, so that detachable connection of the second end of the first movable baffle with the frame can be realized.

[0026] In some possible implementations, a plurality of first movable baffles are arranged side by side along the width direction of the frame and are respectively rotationally connected to the frame; when the plurality of first movable baffles are respectively rotated to have their plate surfaces parallel to the width direction of the frame, the plurality of first movable baffles abut each other in sequence; and when the plurality of first movable baffles are respectively rotated to have their plate surfaces form an angle greater than zero with the width direction of the frame, gaps are formed between adjacent first movable baffles.

[0027] Through the above arrangement, a louver structure can be formed by using the plurality of first movable baffles arranged side by side below the second opening, based on the louver principle, when the plurality of first movable baffles are respectively parallel to the width direction of the frame, the plurality of first movable baffles can be spliced into a complete plate member for collecting dust and accumulated sand and preventing air backflow to ensure the sealing of the V-shaped cavity; when the plurality of first movable baffles are rotated by a certain angle, since the rotation axes of each first movable baffle are parallel and spaced, gaps are formed between adjacent first movable baffles, and dust and accumulated sand can flow out of the gaps downward to complete the cleaning of the V-shaped cavity.

[0028] In some possible implementations, the liquid cooling unit further includes a plurality of second movable baffles, the plurality of second movable baffles are arranged side by side on the first opening along the width direction of the frame and are respectively rotationally connected to the frame; when the plurality of second movable baffles are respectively rotated to have their plate surfaces parallel to the width direction of the frame, the plurality of second movable baffles abut each other in sequence; and when the plurality of second movable baffles are respectively rotated to have their plate surfaces form an angle greater than zero with the width direction of the frame, gaps are formed between adjacent second movable baffles.

[0029] and / or;

[0030] The liquid cooling unit further comprises a plurality of third movable baffles arranged side by side on the side of the first heat exchanger away from the second heat exchanger and the side of the second heat exchanger away from the first heat exchanger and respectively rotatably connected to the frame; when the plurality of third movable baffles are respectively rotated to a state that the plate surface thereof is parallel to the heat dissipation surface of the adjacent first heat exchanger or second heat exchanger, the plurality of third movable baffles abut each other in sequence; when the plurality of third movable baffles are respectively rotated to a state that the angle between the plate surface thereof and the heat dissipation surface of the adjacent first heat exchanger or second heat exchanger is greater than zero, a gap is formed between the adjacent third movable baffles.

[0031] In the embodiment, when the liquid cooling unit is not working, the plurality of second movable baffles can be rotated to a state that the plate surface thereof is parallel to the width direction of the frame, the plurality of second movable baffles abut each other in sequence, and the plurality of second movable baffles can be spliced into a complete plate member to completely cover the first opening, so that dust and sand can be prevented from falling into the V-shaped cavity and the cleaning requirement of the V-shaped heat exchange device in the liquid cooling unit is reduced.

[0032] In the embodiment, when the liquid cooling unit is not working, the plurality of third movable baffles can be rotated to a state that the plate surface thereof is parallel to the first heat exchanger, the plurality of third movable baffles abut each other in sequence, and the plurality of third movable baffles can be spliced into a complete plate member to completely cover the heat dissipation surface of the first heat exchanger, so that dust and sand can be prevented from falling into the V-shaped cavity and the cleaning requirement of the V-shaped heat exchange device in the liquid cooling unit is reduced.

[0033] On the other hand, a kind of energy storage cabinet is provided, and the energy storage cabinet includes: cabinet and the liquid cooling unit, battery pack and liquid cooling plate arranged in the cabinet, and the liquid cooling unit is as described in the utility model;

[0034] The liquid cooling plate is used to cool the battery pack, the liquid cooling medium outlet of the liquid cooling plate is connected with the backwater port of the liquid cooling unit, and the liquid cooling medium inlet of the liquid cooling plate is connected with the water supply port of the liquid cooling unit.

[0035] The energy storage cabinet provided in this embodiment has all the advantages of the liquid-cooled unit mentioned above. The first and second heat exchangers are arranged in a V-shape, forming a V-shaped heat exchange device. Specifically, the first heat exchanger is located on one side of the V-shaped heat exchange device, and the second heat exchanger is located on the other side. A second opening is located at the bottom of the V-shaped cavity, and a movable first baffle is arranged below the second opening. Dust and sand falling from the second opening accumulate on this first movable baffle. When the dust and sand accumulate to a certain extent, the first movable baffle can be removed, allowing for easy cleaning of the dust and sand inside the V-shaped cavity. This solves the problem of the difficulty in cleaning dust and sand from the bottom of the V-shaped heat exchange device.

[0036] In some possible implementations, the side wall of the housing has an air inlet, the top wall of the housing has an air outlet, the air inlet faces the first heat exchanger and the second heat exchanger, and the air outlet faces the first opening.

[0037] The energy storage cabinet provided in this embodiment has an air inlet and an air outlet that can form an air channel. Since the air outlet is located at the top of the cabinet and the air inlet is located on the side wall of the cabinet, the energy storage cabinet adopts a side-inlet and top-exhaust structure with smoother airflow organization. Therefore, when the energy storage cabinet is arranged closely in the application scenario, it will not affect the air inlet and outlet, and can achieve a high-density layout, further reducing the footprint and increasing the floor space density. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the structure of the liquid cooling unit provided in an embodiment of the present utility model;

[0039] Figure 2 A schematic diagram of the structure of the first exemplary baffle member provided in the embodiment of this utility model;

[0040] Figure 3 This is a schematic diagram of the structure of the second exemplary baffle member provided in an embodiment of the present utility model;

[0041] Figure 4 A schematic diagram of the structure of the third exemplary baffle provided in this embodiment of the utility model;

[0042] Figure 5 A schematic diagram of the structure of the fourth exemplary baffle provided in this embodiment of the utility model;

[0043] Figure 6 A schematic diagram of the structure of the fifth exemplary baffle provided in this embodiment of the utility model;

[0044] Figure 7 A schematic diagram of the structure of the sixth exemplary baffle provided in this embodiment of the utility model;

[0045] Figure 8 A structure schematic view of the first exemplary second movable baffle and the third movable baffle is provided for the embodiment of the utility model;

[0046] Figure 9 A structure schematic view of the second exemplary second movable baffle and the third movable baffle in a closed state is provided for the embodiment of the utility model;

[0047] Figure 10 A structure schematic view of the second exemplary second movable baffle and the third movable baffle in an open state is provided for the embodiment of the utility model;

[0048] Figure 11 A structure schematic view of the energy storage cabinet is provided for the embodiment of the utility model.

[0049] The reference signs respectively represent:

[0050] 000, cavity; 001, first opening; 002, second opening;

[0051] 1, first heat exchanger;

[0052] 2, second heat exchanger;

[0053] 31, first movable baffle; 3101, first end; 3102, second end; 311, hinged shaft; 312, connecting screw; 32, guide rail; 321, open end; 322, limiting baffle;

[0054] 4, frame;

[0055] 5, second movable baffle;

[0056] 6, third movable baffle;

[0057] 7, box body;

[0058] 701, box body air inlet; 702, box body air outlet;

[0059] 8, fan;

[0060] a, first direction; b, second direction; c, third direction. DETAILED DESCRIPTION

[0061] The energy storage cabinet, also known as an energy storage container, includes a battery pack for electrical energy storage. Since the battery pack generates heat during charging and discharging, in consideration of the electrical performance, service life and safety of the battery pack, a liquid cooling unit is usually arranged in the energy storage cabinet to cool the battery pack. Specifically, the battery pack is in close contact with a liquid cooling pipeline or a liquid cooling plate circulating with a liquid cooling medium (for example, the liquid cooling medium can be water), the outlet of the liquid cooling pipeline or the liquid cooling plate is connected to the water return port of the liquid cooling unit, and the inlet of the liquid cooling pipeline or the liquid cooling plate is connected to the water supply port of the liquid cooling unit. After the low-temperature liquid cooling medium absorbs the heat generated by the battery pack in the liquid cooling pipeline or the liquid cooling plate, the heat-carrying liquid cooling medium enters the inside of the liquid cooling unit through the outlet of the liquid cooling pipeline or the liquid cooling plate and the water return port of the liquid cooling unit in turn. The heat-carrying liquid cooling medium is cooled when it exchanges heat with the external environment in the liquid cooling unit, and the low-temperature liquid cooling medium formed is circulated into the liquid cooling pipeline or the liquid cooling plate through the water supply port of the liquid cooling unit and the inlet of the liquid cooling pipeline or the liquid cooling plate in turn to perform the next cycle.

[0062] The liquid cooling unit includes a condenser for refrigeration, also known as a heat exchanger. In order to improve the heat exchange efficiency and enhance the structural stability of the liquid cooling unit, two heat exchangers are usually arranged, and the heat dissipation surfaces of the two heat exchangers are arranged at an angle, so that a V-shaped or inclined V-shaped cavity is formed between the two heat exchangers. At this time, the two heat exchangers arranged at an angle can be referred to as a V-shaped heat exchange device.

[0063] At present, the energy storage cabinet adopts a side air inlet and top air outlet structure with more fluent air flow organization to improve the operation energy efficiency of the liquid cooling unit. The energy storage cabinet has an air inlet on the side wall of the cabinet and an air outlet on the top wall of the cabinet. The air inlet faces the two heat exchangers, and the air outlet faces the opening of the angle space (i.e. the V-shaped or inclined V-shaped cavity) between the two heat exchangers.

[0064] However, in areas with high dust concentration and frequent sandstorms, dust will fall from the top air outlet of the container into the cavity between the two heat exchangers and accumulate on the heat dissipation surface of the heat exchanger and the bottom of the cavity between the two heat exchangers. Excessive dust accumulation can cause the heat exchanger to be dirty and blocked, affecting air flow efficiency and thus reducing the energy efficiency of the liquid cooling unit.

[0065] In addition, in the related art, the side plate of the V-shaped heat exchange device of the liquid cooling unit is made in a detachable form. When the V-shaped heat exchange device is severely dirty and blocked, the side plate is removed, and a broom or a dust collector or the like is used to clean the accumulated sand inside the V-shaped heat exchange device.

[0066] However, the liquid cooling unit has a depth of about 2 meters, and it is difficult to clean the accumulated sand inside the V-shaped heat exchange device. Moreover, the bottom area of the V-shaped heat exchange device is an irregular space, making it difficult to clean with a broom or a dust collector or the like.

[0067] In view of the above technical problems, in combination with Figure 1 and Figure 2 , the embodiment provides a liquid cooling unit, which comprises a first heat exchanger 1, a second heat exchanger 2, a first movable baffle 31 and a frame 4; wherein the first heat exchanger 1 and the second heat exchanger 2 are fixedly arranged at intervals in the frame 4, and the heat dissipation surfaces of the first heat exchanger 1 and the second heat exchanger 2 are arranged at an angle, and there is a cavity 000 (for example, the cavity 000 is V-shaped) between the first heat exchanger 1 and the second heat exchanger 2; in the height direction of the frame 4, the top of the cavity 000 has a first opening 001, and the bottom of the cavity 000 has a second opening 002, and the area of the first opening 001 is greater than the area of the second opening 002; in the height direction of the frame 4, the first movable baffle 31 is movably arranged below the second opening 002.

[0068] In the embodiment of the disclosure, the heat dissipation surface of the first heat exchanger 1 is the surface of the first heat exchanger 1 facing the second heat exchanger 2, the heat dissipation surface of the second heat exchanger 2 is the surface of the second heat exchanger 2 facing the first heat exchanger 1, and the heat dissipation surfaces of the first heat exchanger 1 and the second heat exchanger 2 are perpendicular to the air flow direction and serve as air outlet surfaces, so that the hot air formed after the air is treated by the first heat exchanger 1 and the second heat exchanger 2 is discharged from the heat dissipation surfaces of the first heat exchanger 1 and the second heat exchanger 2, and is sucked by the fan 8 arranged at the opening of the cavity 000 between the heat dissipation surfaces of the first heat exchanger 1 and the second heat exchanger 2 and discharged to the outside.

[0069] It should be noted that the first heat exchanger 1 and the second heat exchanger 2 are arranged at intervals along a first direction a, as shown in the accompanying drawings, the first direction a can also be regarded as the width direction of the frame 4, the length direction of the frame 4 is the second direction b as shown in the accompanying drawings, and the height direction of the frame 4 is the third direction c as shown in the accompanying drawings. Figure 1 Figure 1 Figure 1

[0070] The liquid cooling unit provided by the embodiment is arranged in a V shape by the first heat exchanger 1 and the second heat exchanger 2, and the two form a V-shaped heat exchange device, that is, the first heat exchanger 1 is located on one side of the V-shaped heat exchange device, the second heat exchanger 2 is located on the other side of the V-shaped heat exchange device, and the second opening 002 is arranged at the bottom of the V-shaped cavity 000, and a first movable baffle 31 is arranged below the second opening 002, dust, sand and the like falling from the second opening 002 will accumulate on the first movable baffle 31, when the dust, sand and the like accumulate to a certain degree, the first movable baffle 31 can be taken out, so that the dust, sand and the like in the V-shaped cavity 000 can be easily cleaned, thereby solving the problem that the dust, sand and the like at the bottom of the V-shaped heat exchange device are difficult to clean.

[0071] ​​​In some examples, when the first direction a is parallel to the horizontal plane, and the first heat exchanger 1 and the second heat exchanger 2 are arranged at intervals along the first direction a, the first heat exchanger 1 and the second heat exchanger 2 are located on the same horizontal plane.

[0072] In some examples, both the first heat exchanger 1 and the second heat exchanger 2 are finned shell-and-tube heat exchangers. In other examples, the first heat exchanger 1 and the second heat exchanger 2 are microchannel heat exchangers, with one side of each heat exchanger 1 and 2 being the air inlet side (corresponding to one of the heat dissipation surfaces, or air inlet surfaces), and the opposite side being the air outlet side (corresponding to the other heat dissipation surface, or air outlet surface). The cavity 000 formed by the first heat exchanger 1 and the second heat exchanger 2 is specifically formed by the rectangular air outlet surfaces of the first heat exchanger 1 and the second heat exchanger 2, as well as two V-shaped end faces, a larger rectangular first opening 001, and a smaller rectangular second opening 002. The two V-shaped end faces can be sealed using end plates.

[0073] When heat exchange is performed using the first heat exchanger 1 and the second heat exchanger 2, air flows from the air inlet side of the first heat exchanger 1 to the air outlet side of the first heat exchanger 1, and from the air inlet side of the second heat exchanger 2 to the air outlet side of the second heat exchanger 2. During the process of flowing through the first heat exchanger 1 and the second heat exchanger 2, the air comes into contact with the surface of the heat exchanger and exchanges heat. After that, the air gathers in the cavity 000 and finally flows upward and is blown out from the first opening 001.

[0074] In some examples, the liquid cooling unit also includes at least one fan 8 arranged in the first opening 001. When the at least one fan 8 rotates, it can draw the air in the cavity 000 out of the first opening 001, so that a negative pressure is formed in the cavity 000. Under the action of atmospheric pressure, the outside air continuously passes through the first heat exchanger 1 and the second heat exchanger 2 into the cavity 000, thereby realizing continuous heat exchange between the first heat exchanger 1 and the second heat exchanger 2.

[0075] Optionally, there may be multiple fans 8, with multiple fans 8 extending along the length of the cavity 000 (reference). Figure 1 In the second direction b), the air is arranged in one or more rows in an array, and the gap between the fan 8 and the first opening 001 is sealed with sheet metal parts, thereby creating a negative pressure in the cavity 000. The power of the fan 8 is used to prevent the airflow from flowing back from the first opening 001. The air can only enter through the first heat exchanger 1 and the second heat exchanger 2, which helps to improve the air circulation efficiency of the first heat exchanger 1 and the second heat exchanger 2, thereby improving the energy efficiency of the liquid cooling unit.

[0076] In some examples, when the first heat exchanger 1 and the second heat exchanger 2 form a cavity 000, the first heat exchanger 1 and the second heat exchanger 2 are arranged symmetrically, so that the cavity 000 formed by the two is a positive V-shape, which can be referred toFigure 4 As shown in FIG. 1. In other examples, when the first heat exchanger 1 and the second heat exchanger 2 enclose the cavity 000, the first heat exchanger 1 and the second heat exchanger 2 are asymmetrically arranged, so that the cavity 000 enclosed by the two is a slanting V shape, which can be referred to FIG. 2. Figure 2 As shown in FIG. 1. In other examples, when the first heat exchanger 1 and the second heat exchanger 2 enclose the cavity 000, the first heat exchanger 1 and the second heat exchanger 2 are asymmetrically arranged, so that the cavity 000 enclosed by the two is a slanting V shape, which can be referred to FIG. 2.

[0077] In some embodiments, in combination with Figure 3 , Figure 4 and Figure 5 As shown in FIG. 1, the liquid cooling unit further comprises a guide rail 32 fixedly connected to the frame 4, and the first movable baffle 31 is slidably connected to the guide rail 32. By slidingly arranging the first movable baffle 31 on the guide rail 32, the first movable baffle 31 can be slid out along the direction of the guide rail 32, which has a simpler operation and is conducive to further reducing the difficulty of cleaning dust and sand.

[0078] In addition, when cleaning is not required, the guide rail 32 can horizontally support the first movable baffle 31 below the second opening 002, which can on the one hand close the first opening 001, thereby achieving the effect of closing the cavity 000, and on the other hand can ensure that the dust and sand falling from the second opening 002 are stably accumulated on the first movable baffle 31 and will not flow randomly, thereby increasing the cleaning difficulty.

[0079] In some possible implementations, in combination with Figure 3 , Figure 4 and Figure 5 As shown in FIG. 1, the first movable baffle 31 is slidably connected to the guide rail 32 along the extension direction of the guide rail 32, wherein the extension direction of the guide rail 32 is perpendicular to the height direction of the frame 4. The height direction of the frame 4 is shown as the third direction c in the figure. Through the above arrangement, the first heat exchanger 1 and the second heat exchanger 2 are arranged at intervals along the extension direction of the guide rail 32, and the extension direction of the guide rail 32 is perpendicular to the height direction of the frame 4. When the first movable baffle 31 slides along the guide rail 32, it can be slid out along the horizontal direction perpendicular to the height direction of the frame 4, which can ensure that the dust and sand on the first movable baffle 31 will not flow out, and the operation is convenient, and the dust and sand on the first movable baffle 31 can be easily cleaned.

[0080] In some embodiments, in combination with Figure 3 and Figure 4 As shown in FIG. 1, the extension direction of the guide rail 32 is parallel to the width direction of the frame 4, and the first movable baffle 31 is slidably connected to the guide rail 32 along the width direction of the frame 4. The width direction of the frame 4 is shown as the first direction a in the figure.

[0081] Through the above arrangement, the width direction of the frame 4 corresponds to the width direction of the V-shaped heat exchange device, and for the V-shaped heat exchange device in the liquid cooling unit, the width direction is usually much smaller than the length direction. The first movable baffle 31 slides along the guide rail 32, that is, the first movable baffle 31 can be slid out along the width direction of the V-shaped heat exchange device. The sliding stroke of the sliding out and sliding back of the first movable baffle 31 is shorter, the operation is more convenient, and it is beneficial to further reduce the cleaning difficulty of dust and sand accumulation.

[0082] In some examples, the first heat exchanger 1 and the second heat exchanger 2 are arranged in the first direction a, so that the first opening 001 is located at the top of the cavity 000, and the second opening 002 is located at the bottom of the cavity 000.

[0083] In some examples, the air inlet of the liquid cooling unit is arranged outside the first heat exchanger 1 and the second heat exchanger 2 in the width direction. When the first movable baffle 31 can be slid out in the width direction, the operation can be performed in the air inlet of the liquid cooling unit, and the difficulty of sliding out and sliding back of the first movable baffle 31 is smaller.

[0084] In some embodiments, in combination with Figure 5 As shown, the extension direction of the guide rail 32 is parallel to the length direction of the frame 4, and the first movable baffle 31 is slidably connected to the guide rail 32 in the length direction of the frame 4. Wherein, the length direction of the frame 4 is shown as the second direction b in the figure.

[0085] In this embodiment, the second direction b is the length direction of the V-shaped heat exchange device formed by the first heat exchanger 1 and the second heat exchanger 2. When the first movable baffle 31 can slide in the second direction b, that is, the first movable baffle 31 can be pulled out from one end of the V-shaped heat exchange device in the length direction, or it can also be described that the first movable baffle 31 can be pulled out from the end face of the cavity 000. This scheme is suitable for the scene where the width direction structure of the V-shaped heat exchange device is limited.

[0086] In some embodiments, in combination with Figure 3 As shown, the heat dissipation surface of the first heat exchanger 1 is arranged in parallel with the height direction of the frame 4, and the second heat exchanger 2 is arranged inclined to the height direction of the frame 4. The guide rail 32 has an open end 321, and the open end 321 is located on the side of the first heat exchanger 1 away from the second heat exchanger 2. The first movable baffle 31 is arranged through the open end 321.

[0087] In this embodiment, the first heat exchanger 1 is arranged along the height direction of the frame 4, and the second heat exchanger 2 is arranged obliquely along the height direction of the frame 4. That is, the first heat exchanger 1 and the second heat exchanger 2 are asymmetrically arranged. At this time, since the first heat exchanger 1 occupies less horizontal space, it can be arranged close to the side of the liquid cooling unit. The side of the first heat exchanger 1 away from the second heat exchanger 2 also corresponds to being close to the side of the liquid cooling unit. The first movable baffle 31 slides along the horizontal slide rail to the side of the first heat exchanger 1 away from the second heat exchanger 2. That is, the first movable baffle 31 can be directly slid to the side of the liquid cooling unit, the sliding stroke is further shortened, and the cleaning operation is convenient, and the cleaning difficulty is further reduced.

[0088] In some examples, the side of the liquid cooling unit is provided with an air inlet, and the first movable baffle 31 can be slid into the air inlet for cleaning from the air inlet, further reducing the cleaning difficulty.

[0089] In some examples, the other end of the guide rail 32 opposite the open end 321 has a limiting baffle 322, which can be used to limit the sliding direction of the first movable baffle 31 along the length direction or the width direction of the frame 4.

[0090] In some embodiments, in combination with Figure 6 As shown, the first movable baffle 31 has a first end 3101 close to the second heat exchanger 2 and a second end 3102 opposite the first end 3101; the first end 3101 of the first movable baffle 31 is rotationally connected to the frame 4, and the second end 3102 of the first movable baffle 31 is detachably connected to the frame 4.

[0091] Through the above arrangement, when cleaning the dust or sand on the first movable baffle 31, it is not necessary to remove the first movable baffle 31. Only the second end 3102 of the first movable baffle 31 needs to be opened, and the first movable baffle 31 rotates around the first end 3101 under the action of gravity or external force. The dust or sand on it can automatically flow out, thereby realizing the cleaning of the V-shaped heat exchange device.

[0092] In this embodiment, the first movable baffle 31 does not need to be removed, the second end 3102 of the first movable baffle 31 is convenient to disassemble and assemble, and the first end 3101 is rotationally connected and the second end 3102 is detachably connected. An upward pre-tightening force can be provided to the first movable baffle 31, so that the first movable baffle 31 can be tightly pressed upward, and gaps between the first movable baffle 31 and the second opening 002 can be prevented, thereby preventing air leakage, which can cause the energy efficiency of the liquid cooling unit to decrease.

[0093] In some embodiments, in combination with Figure 6As shown, the first heat exchanger 1 and the second heat exchanger 2 are distributed at intervals along the width direction of the frame 4. The first end 3101 of the first movable baffle 31 is located on the side of the second heat exchanger 2 away from the first heat exchanger 1, and the second end 3102 is located on the side of the first heat exchanger 1 away from the second heat exchanger 2.

[0094] With the above arrangement, the first heat exchanger 1 and the second heat exchanger 2 are arranged at intervals along the width direction of the frame 4, corresponding to the width direction of the cavity 000. The width direction is usually much smaller than the length direction. Since the shape of the second opening 002 corresponds to the shape of the cavity 000, the width dimension of the second opening 002 is also much smaller than the length dimension. Correspondingly, the width dimension of the first movable baffle 31 is also much smaller than the length dimension. The first end 3101 and the second end 3102 of the first movable baffle 31 are its two long sides, respectively. The first movable baffle 31 rotates and opens along the long side. The rotation radius is the length of the wide side. Therefore, the space required for the first movable baffle 31 to rotate and open is smaller. This is beneficial to reducing the space occupied by the first movable baffle 31 in the liquid cooling unit, and thus beneficial to reducing the overall size of the liquid cooling unit.

[0095] In addition, the first movable baffle 31 can be opened by rotating along the long side, which is easier to operate than rotating along the short side, thus improving the convenience of cleaning the first movable baffle.

[0096] In some implementation schemes, reference Figure 6 As shown, the second end 3102 of the first movable baffle 31 is connected to the frame 4 by screws or clips, thereby enabling a detachable connection between the second end 3102 of the first movable baffle 31 and the frame 4.

[0097] In some examples, the first movable baffle 31 has a hinge shaft 311 on its first end 3101 and a connecting screw 312 on its second end 3102. The first movable baffle 31 can be locked and fixed in a horizontal state by the connecting screw 312. When the connecting screw 312 is turned off, the first movable baffle 31 rotates downward around the hinge shaft 311 to open and pour out the dust or sand on it.

[0098] Combination Figure 6 As shown, in some embodiments, the heat dissipation surface of the first heat exchanger 1 is parallel to the height direction of the frame 4, and the heat dissipation surface of the second heat exchanger 2 is arranged at an angle relative to the height direction of the frame 4; the first end 3101 of the first movable baffle 31 is located on the side of the second heat exchanger 2 away from the first heat exchanger 1, and the second end 3102 is located on the side of the first heat exchanger 1 away from the second heat exchanger 2.

[0099] In this embodiment, the first heat exchanger 1 is arranged along the height direction of the frame 4, and the second heat exchanger 2 is arranged obliquely along the height direction of the frame 4. That is, the first heat exchanger 1 and the second heat exchanger 2 are asymmetrically arranged. At this time, since the first heat exchanger 1 occupies less horizontal space, it can be arranged close to the side of the liquid cooling unit. The side of the first heat exchanger 1 away from the second heat exchanger 2 also corresponds to the side close to the liquid cooling unit. The end of the first movable baffle 31 close to the first heat exchanger 1 can be turned down to open. The first movable baffle 31 can directly pour the dust or sand on it out of the side of the liquid cooling unit. The operation is convenient, and the cleaning difficulty is further reduced.

[0100] In combination Figure 7 As shown in some embodiments, the first movable baffle 31 is provided in multiple, and the multiple first movable baffles 31 are arranged side by side along the width direction of the frame 4 and are respectively rotationally connected to the frame 4. When the multiple first movable baffles 31 are respectively rotated to be parallel to the width direction of the frame, the multiple first movable baffles 31 abut in turn. When the multiple first movable baffles 31 are respectively rotated to have an angle greater than zero with the width direction of the frame, there is a gap between adjacent first movable baffles 31.

[0101] Through the above arrangement, the multiple first movable baffles 31 arranged side by side below the second opening 002 can form a louver structure. Based on the louver principle, when the multiple first movable baffles 31 are respectively parallel to the width direction of the frame 4, the multiple first movable baffles 31 can be spliced into a complete plate member for receiving dust and sand and preventing air backflow to ensure the sealing of the cavity 000. When the multiple first movable baffles 31 are rotated by a certain angle, since the rotation axes of each first movable baffle 31 are parallel and spaced, a gap is formed between adjacent first movable baffles 31. Dust and sand can flow out of the gap downward to complete the cleaning of the cavity 000.

[0102] In some examples, the rotation of the first movable baffle 31 can be manually operated or automatically operated, for example, by using a driving motor to drive the rotation of the first movable baffle 31. In other examples, the multiple first movable baffles 31 have a synchronous connecting rod. The synchronous connecting rod can be used to drive the synchronous rotation of the multiple first movable baffles 31. Only the synchronous connecting rod needs to be driven to synchronously operate the multiple first movable baffles 31.

[0103] In combination Figure 8 , Figure 9 and Figure 10As shown in some embodiments, the liquid cooling unit further comprises a plurality of second movable baffles 5 arranged side by side on the first opening 001 in the width direction of the frame 4 and respectively rotatably connected to the frame 4; when the plurality of second movable baffles 5 are respectively rotated to a state that the plate surfaces thereof are parallel to the width direction of the frame 4, the plurality of second movable baffles 5 abut each other in sequence; when the plurality of second movable baffles 5 are respectively rotated to a state that the plate surfaces thereof form an angle greater than zero with the width direction of the frame 4, gaps are formed between adjacent second movable baffles 5.

[0104] In the present embodiment, by arranging the plurality of second movable baffles 5 side by side on the first opening 001, when the liquid cooling unit is not working, the plurality of second movable baffles 5 can be rotated to a state that the plate surfaces thereof are parallel to the width direction of the frame 4, the plurality of second movable baffles 5 abut each other in sequence, and can be spliced into a complete cover body to completely cover the first opening 001, thereby preventing dust and sand from falling into the cavity 000 and reducing the cleaning requirement of the V-shaped heat exchange device in the liquid cooling unit. When the liquid cooling unit is working, the plurality of second movable baffles 5 are respectively rotated to a state that the plate surfaces thereof form an angle greater than zero with the width direction of the frame 4, and air can pass through the gaps between the second movable baffles 5.

[0105] In some examples, the rotation of the second movable baffles 5 can be manually operated or automatically operated, for example, a driving motor is used to drive the rotation of the second movable baffles 5. In other examples, the plurality of second movable baffles 5 have a synchronous connecting rod, and the synchronous connecting rod can be used to drive the synchronous rotation of the plurality of second movable baffles 5, so that the plurality of second movable baffles 5 can be operated synchronously by driving the synchronous connecting rod.

[0106] In combination with Figure 8 , Figure 9 and Figure 10 As shown in some embodiments, the liquid cooling unit further comprises a plurality of third movable baffles 6 arranged side by side on the side of the first heat exchanger 1 away from the second heat exchanger 2 and on the side of the second heat exchanger 2 away from the first heat exchanger 1, and respectively rotatably connected to the frame 4; when the plurality of third movable baffles 6 are respectively rotated to a state that the plate surfaces thereof are parallel to the heat dissipation surfaces of the adjacent first heat exchanger 1 or second heat exchanger 2, the plurality of third movable baffles 6 abut each other in sequence; when the plurality of third movable baffles 6 are respectively rotated to a state that the plate surfaces thereof form an angle greater than zero with the heat dissipation surfaces of the adjacent first heat exchanger 1 or second heat exchanger 2, gaps are formed between adjacent third movable baffles 6.

[0107] In the embodiment, by arranging multiple third movable baffles 6 on the side of the first heat exchanger 1 away from the second heat exchanger 2 and the side of the second heat exchanger 2 away from the first heat exchanger 1 respectively, when the liquid cooling unit is not working, the multiple third movable baffles 6 can be rotated to a state parallel to the heat dissipation surface of the adjacent first heat exchanger 1 or second heat exchanger 2, and the multiple third movable baffles 6 abut each other in turn to splice into a complete cover body to completely cover the side of the first heat exchanger 1, thereby preventing dust and sand from falling into the cavity 000 and reducing the cleaning requirement of the V-shaped heat exchange device in the liquid cooling unit. When the liquid cooling unit is working, the multiple third movable baffles 6 are respectively rotated to an angle greater than zero with the heat dissipation surface of the first heat exchanger 1 or the second heat exchanger 2, and air can pass through the gap between the third movable baffles 6.

[0108] In some examples, the rotation of the third movable baffle 6 can be manually operated or automatically operated, for example, a driving motor is used to drive the rotation of the third movable baffle 6. In other examples, the multiple third movable baffles 6 have a synchronous connecting rod, and the synchronous connecting rod can be used to drive the synchronous rotation of the multiple third movable baffles 6, so that the multiple third movable baffles 6 can be operated synchronously by driving the synchronous connecting rod.

[0109] In some examples, referring to Figure 9 and Figure 10 , the liquid cooling unit includes multiple second movable baffles 5 and multiple third movable baffles 6, and referring to Figure 9 , when the liquid cooling unit is not working, the fan 8 is stopped, and the second movable baffles 5 and the third movable baffles 6 are closed under the action of gravity, the multiple second movable baffles 5 are respectively rotated to be parallel to the first direction a, and the multiple third movable baffles 6 are respectively rotated to be parallel to the side of the first heat exchanger 1 away from the second heat exchanger 2, so that the dust and sand on the top and left side cannot enter the cavity 000. Figure 10 When the liquid cooling unit is working, the fan 8 is running, air flows through the first heat exchanger 1 from the left side into the cavity 000 and flows out from the first opening 001 upward, and the air flow can drive the third movable baffles 6 to rotate to an angle greater than zero with the side of the first heat exchanger 1, thereby achieving the closing and opening of the second movable baffles 5 and the third movable baffles 6.

[0110] On the other hand, in combination with Figure 11 , the embodiment provides a storage cabinet, which comprises a cabinet body 7 and a liquid cooling unit, a battery pack and a liquid cooling plate arranged in the cabinet body 7, and the liquid cooling unit is as shown in the utility model.

[0111] The energy storage cabinet provided by the embodiment of the utility model has all the advantages of the liquid cooling unit mentioned above. Among them, the first heat exchanger 1 and the second heat exchanger 2 are arranged in a V shape, and the two cooperate to form a V-shaped heat exchange device, that is, the first heat exchanger 1 is located on one side of the V-shaped heat exchange device, and the second heat exchanger 2 is located on the other side of the V-shaped heat exchange device, and the bottom of the cavity 000 has a second opening 002, a first movable baffle 31 is arranged below the second opening 002, and dust, sand and the like falling from the second opening 002 will accumulate on the first movable baffle 31, when dust, sand and the like accumulate to a certain extent, the first movable baffle 31 can be taken out, so that dust, sand and the like in the cavity 000 can be easily cleaned, thereby solving the problem of high difficulty in cleaning dust, sand and the like at the bottom of the V-shaped heat exchange device.

[0112] In some implementations, the side wall of the cabinet 7 has an air inlet 701, and the top wall of the cabinet 7 has an air outlet 702, the air inlet 701 faces the first heat exchanger 1 and the second heat exchanger 2, and the air outlet 702 faces the first opening 001.

[0113] In this embodiment, the air inlet 701 and the air outlet 702 form an air channel, and since the air outlet 702 is arranged at the top of the cabinet 7 and the air inlet 701 is arranged at the side wall of the cabinet 7, the energy storage cabinet adopts a side air inlet and top air outlet structure with smoother airflow organization, so that the energy storage cabinet can realize high-density layout and further reduce the floor space and improve the floor density when closely arranged in the application scenario.

[0114] In some examples, the liquid cooling unit and the battery pack are distributed along the length direction of the cabinet 7, and the liquid cooling unit is located at one end of the cabinet 7 along the length direction, which facilitates maintenance and repair of the liquid cooling unit.

[0115] The above is only to facilitate those skilled in the art to understand the technical scheme of the utility model, and does not limit the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A liquid-cooled unit, characterized in that, The liquid cooling unit includes a first heat exchanger (1), a second heat exchanger (2), a first movable baffle (31), and a frame (4); The first heat exchanger (1) and the second heat exchanger (2) are fixedly arranged in the frame (4) at intervals, and the heat dissipation surface of the first heat exchanger (1) and the heat dissipation surface of the second heat exchanger (2) are arranged at an angle. There is a cavity (000) between the first heat exchanger (1) and the second heat exchanger (2). In the height direction of the frame (4), the top of the cavity (000) has a first opening (001) and the bottom of the cavity (000) has a second opening (002). The area of ​​the first opening (001) is larger than the area of ​​the second opening (002). In the height direction of the frame (4), the first movable baffle (31) is movably arranged below the second opening (002).

2. The liquid-cooled unit according to claim 1, characterized in that, The liquid cooling unit also includes a guide rail (32), which is fixedly connected to the frame (4), and the first movable baffle (31) is slidably connected to the guide rail (32).

3. The liquid-cooled unit according to claim 2, characterized in that, The first movable baffle (31) is slidably connected to the guide rail (32) along the extension direction of the guide rail (32), wherein the extension direction of the guide rail (32) is perpendicular to the height direction of the frame (4).

4. The liquid-cooled unit according to claim 2, characterized in that, The heat dissipation surface of the first heat exchanger (1) is parallel to the height direction of the frame (4), and the heat dissipation surface of the second heat exchanger (2) is arranged at an angle relative to the height direction of the frame (4). The guide rail (32) has an open end (321) located on the side of the first heat exchanger (1) away from the second heat exchanger (2), and the first movable baffle (31) is arranged through the open end (321).

5. The liquid-cooled unit according to claim 1, characterized in that, The first movable baffle (31) has a first end (3101) near the second heat exchanger (2) and a second end (3102) opposite to the first end (3101); The first end (3101) of the first movable baffle (31) is rotatably connected to the frame (4), and the second end (3102) of the first movable baffle (31) is detachably connected to the frame (4).

6. The liquid-cooled unit according to claim 5, characterized in that, The heat dissipation surface of the first heat exchanger (1) is parallel to the height direction of the frame (4), and the heat dissipation surface of the second heat exchanger (2) is arranged at an angle relative to the height direction of the frame (4). The first end (3101) of the first movable baffle (31) is located on the side of the second heat exchanger (2) away from the first heat exchanger (1), and the second end (3102) of the first movable baffle (31) is located on the side of the first heat exchanger (1) away from the second heat exchanger (2).

7. The liquid-cooled unit according to claim 5, characterized in that, The second end (3102) of the first movable baffle (31) is screwed or snapped to the frame (4).

8. The liquid-cooled unit according to claim 1, characterized in that, The first movable baffle (31) is configured as a plurality of them. The plurality of first movable baffles (31) are arranged side by side along the width direction of the frame (4) and are respectively rotatably connected to the frame (4); When the plurality of first movable baffles (31) are rotated to the point where their surfaces are parallel to the width direction of the frame (4), the plurality of first movable baffles (31) abut against each other in sequence; When the plurality of first movable baffles (31) are rotated to the point that the angle between their surfaces and the width direction of the frame (4) is greater than zero, there is a gap between adjacent first movable baffles (31).

9. The liquid-cooled unit according to any one of claims 1-8, characterized in that, The liquid cooling unit also includes a plurality of second movable baffles (5), which are arranged side by side on the first opening (001) along the width direction of the frame (4) and are rotatably connected to the frame (4) respectively. When the plurality of second movable baffles (5) rotate to the point where their surfaces are parallel to the width direction of the frame (4), the plurality of second movable baffles (5) abut against each other in sequence; When the multiple second movable baffles (5) are rotated to the point that the angle between their surfaces and the width direction of the frame (4) is greater than zero, there is a gap between adjacent second movable baffles (5); and / or; The liquid cooling unit also includes a plurality of third movable baffles (6), which are arranged side by side on the side of the first heat exchanger (1) away from the second heat exchanger (2) and the side of the second heat exchanger (2) away from the first heat exchanger (1), and are respectively rotatably connected to the frame (4). When the plurality of the third movable baffles (6) rotate to the point where their surfaces are parallel to the heat dissipation surfaces of the adjacent first heat exchanger (1) or second heat exchanger (2), the plurality of the third movable baffles (6) abut against each other in sequence. When the plurality of the third movable baffles (6) are rotated to the point that the angle between their plate surface and the heat dissipation surface of the adjacent first heat exchanger (1) or second heat exchanger (2) is greater than zero, there is a gap between the adjacent third movable baffles (6).

10. An energy storage cabinet, characterized in that, The energy storage cabinet includes: a housing (7) and a liquid cooling unit, a battery pack and a liquid cooling plate disposed inside the housing (7), wherein the liquid cooling unit is as described in any one of claims 1-9; The liquid cooling plate is used to dissipate heat from the battery pack. The liquid cooling medium outlet of the liquid cooling plate is connected to the return water port of the liquid cooling unit, and the liquid cooling medium inlet of the liquid cooling plate is connected to the water supply port of the liquid cooling unit.

11. The energy storage cabinet according to claim 10, characterized in that, The box (7) has an air inlet (701) on its side wall and an air outlet (702) on its top wall. The air inlet (701) faces the first heat exchanger (1) and the second heat exchanger (2), and the air outlet (702) faces the first opening (001).

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