A DC charging cabinet with high heat dissipation and low noise

Abstract

The present invention relates to a charging cabinet, and particularly to a DC charging cabinet with high heat dissipation and low noise. The technical problem to be solved is to provide a DC charging cabinet with high heat dissipation and low noise that is convenient for clamping and fixing the battery and effectively protects the battery. A DC charging cabinet with high heat dissipation and low noise includes a support base, a cabinet, spring wires, charging heads, etc. The upper part of the support base is connected to the cabinet. Three spring wires are evenly spaced and connected to both the left and right sides inside the cabinet, and the lower parts of the spring wires are all connected to charging heads. By rotating the support plate and the first connecting rod clockwise and counterclockwise, with the cooperation of the first connecting rod and the second connecting rod, the contact rod is driven to move back and forth, thereby pushing the third connecting rod and the fixing rod to move in and out, realizing the clamping and fixing and loosening of the battery, and effectively protecting the battery.

Description

Technical Field

[0001] The present invention relates to a charging cabinet, and more particularly to a DC charging cabinet with high heat dissipation and low noise. Background Art

[0002] A DC charging cabinet is a DC charging module widely used for charging electric vehicle batteries. A battery charging device is provided inside the charging cabinet, and one or more batteries can be charged simultaneously.

[0003] Patent application CN202121803301.X in the column, with a publication date of 20220114, discloses a DC charging cabinet with high heat dissipation and low noise, including a control cabinet and a battery cabinet. A protective cabinet is arranged inside the battery cabinet, a separation chamber is arranged inside the protective cabinet, a storage battery is arranged on the inner bottom wall of the separation chamber, a fixing plate and a front plate are fixedly connected to the inner wall of the separation chamber, and a feed pipe is arranged on the front side of the front plate. In this DC charging cabinet with high heat dissipation and low noise, through the mutual cooperation among the control cabinet, the battery cabinet, the protective cabinet, the separation chamber, the fixing plate, the front plate, the feed pipe, the support rod, the bottom plate, the baffle, the lever, the ejector rod, the adjusting knob, the adjusting bolt, the top cover, the buffer spring, the bottom cover and the support column, the effect of quickly extinguishing the fire point is achieved, and the possibility of chain reaction of other storage batteries is reduced, solving the problem that when one of the storage batteries in the DC charging cabinet catches fire, the rest of the storage batteries may have chain reactions such as catching fire and explosion. Although the above patent can have a good fire extinguishing effect on the battery after it is heated and catches fire by carrying fire extinguishing sand and a glass rod provided with a low-temperature and high-expansion-rate liquid, it cannot clamp and fix the battery, and it is easy to cause the battery to collide with the charging pile when the charging pile shakes, resulting in damage to the battery and the charging pile.

[0004] Therefore, it is necessary to design a DC charging cabinet with high heat dissipation and low noise that is convenient for clamping and fixing the battery and effectively protects the battery. Summary of the Invention

[0005] In order to overcome the disadvantages that the battery cannot be clamped and fixed, and it is easy to cause the battery to collide with the charging pile when the charging pile shakes, resulting in damage to the battery and the charging pile, the technical problem to be solved is: to provide a DC charging cabinet with high heat dissipation and low noise that is convenient for clamping and fixing the battery and effectively protects the battery.

[0006] The technical solution is: a DC charging cabinet with high heat dissipation and low noise, including a support base, a cabinet, a spring wire, a charging head, a heat dissipation component, a noise reduction component and an opening and closing component. The cabinet is connected to the upper part of the support base. Three spring wires are evenly spaced and connected to both the left and right sides inside the cabinet. The lower parts of the spring wires are all connected to the charging head. The cabinet is provided with a heat dissipation component for providing heat dissipation function to the battery and a noise reduction component for reducing noise, and an opening and closing component for facilitating the sealed charging of the battery is arranged on the front side of the cabinet.

[0007] In a preferred embodiment of the present invention, the heat dissipation component includes a first fan, a second fan, a first filter screen and a second filter screen. Three first fans are evenly spaced and connected to both the left and right sides inside the cabinet. A second fan is connected to the upper side inside the cabinet. First filter screens are connected to both the front and rear sides of the upper part of the cabinet. A second filter screen is connected to the rear side of the middle part of the cabinet.

[0008] In a preferred embodiment of the present invention, the noise reduction component includes a first sound-absorbing cotton, a second sound-absorbing cotton and a third sound-absorbing cotton. The first sound-absorbing cotton is connected to the middle part of the rear side of the cabinet. The second sound-absorbing cotton is connected to the rear side of the upper part of the cabinet. The third sound-absorbing cotton is connected to the front side of the upper part of the cabinet.

[0009] In a preferred embodiment of the present invention, the opening and closing component includes a support rod, a support plate, a first connecting rod and a rotating rod. Three support rods are evenly spaced and connected to both the left and right sides of the front part of the cabinet. Support plates are rotatably connected to the support rods. First connecting rods are symmetrically connected to the upper sides of the support plates. The first connecting rods are slidably connected to the cabinet. Three rotating rods are evenly spaced and rotatably connected to both the left and right sides of the front part of the cabinet.

[0010] In a preferred embodiment of the present invention, there is also a fixing component for clamping and fixing the battery. The fixing component includes a second connecting rod, a contact rod, a first spring, a third connecting rod, a fixing rod and a second spring. Three pairs of second connecting rods are slidably connected to both the left and right sides inside the cabinet at even intervals. Each pair of second connecting rods is symmetrically arranged left and right. A first spring is connected between each second connecting rod and the cabinet. Contact rods are connected to the rear sides of the second connecting rods. Three pairs of third connecting rods are slidably connected to both the left and right sides inside the cabinet at even intervals. Each pair of third connecting rods is symmetrically arranged left and right. The third connecting rods are slidably connected to the contact rods. Fixing rods are slidably connected to the inner sides of the third connecting rods symmetrically in the front and rear directions. The fixing rods are slidably connected to the cabinet. A second spring is connected between each fixing rod and the third connecting rod.

[0011] In a preferred embodiment of the present invention, there is also a sound insulation component for isolating the noise inside the cabinet when taking out the battery. The sound insulation component includes a first sound insulation board, a fourth connecting rod, a third spring, a fifth connecting rod, a second sound insulation board and a fourth spring. Three pairs of first sound insulation boards are slidably connected to both the left and right sides inside the cabinet at even intervals. Each pair of first sound insulation boards is symmetrically arranged left and right. A third spring is connected between each first sound insulation board and the cabinet. Fourth connecting rods are connected to the rear parts of the first sound insulation boards. Three fifth connecting rods are slidably connected to both the left and right sides inside the cabinet. A fourth spring is connected between each fifth connecting rod and the cabinet. Each fifth connecting rod is connected to the adjacent contact rod. Second sound insulation boards are connected to the upper rear sides of the fifth connecting rods. The second sound insulation boards are slidably connected to the cabinet.

[0012] In a preferred embodiment of the present invention, there is also a water-cooling component for accelerating the cooling and heat dissipation of the battery. The water-cooling component includes a third filter screen, a third fan, a fourth filter screen, a pipeline, and a circulation pump. The third filter screens are symmetrically connected to the left and right sides of the rear side of the lower part of the cabinet, the third fans are symmetrically connected to the left and right sides of the rear side of the lower part of the cabinet, the fourth filter screens are symmetrically connected to the left and right sides of the rear side of the lower part of the cabinet, the circulation pumps are symmetrically connected to the left and right sides of the rear side of the lower part inside the cabinet, and pipelines are connected between the upper and lower sides of the circulation pumps.

[0013] In a preferred embodiment of the present invention, sliding grooves are symmetrically formed in the front and rear directions on the inner sides of the third connecting rods, and the fixing rods are located in the sliding grooves.

[0014] Compared with the prior art, the present invention has the following advantages: 1. By rotating the support plate and the first connecting rod clockwise and counterclockwise, and with the cooperation of the first connecting rod and the second connecting rod, the contact rod is driven to move back and forth, thereby pushing the third connecting rod and the fixing rod to move inwards and outwards, realizing the clamping and fixing and loosening of the battery, and effectively protecting the battery.

[0015] 2. The present invention drives the fifth connecting rod and the second sound insulation board to move back and forth through the contact rod. At the same time, the fifth connecting rod cooperates with the fourth connecting rod to control the first sound insulation board to move inwards and outwards, enabling the air in the cabinet to circulate conveniently when charging the battery and having a sound insulation effect when taking out the battery.

[0016] 3. The present invention realizes the water-cooling type cooling of the charging cabinet by laying pipelines in the cabinet, using the circulation pump to boost the pressure to drive the coolant to circulate in the pipelines, and also using fans to cool and lower the temperature of the pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 It is a partial cross-sectional structure schematic diagram of the present invention.

[0019] Figure 3 It is a first partial three-dimensional structure schematic diagram of the heat dissipation component of the present invention.

[0020] Figure 4 It is a second partial three-dimensional structure schematic diagram of the heat dissipation component of the present invention.

[0021] Figure 5 It is a three-dimensional structure schematic diagram of the noise reduction component of the present invention.

[0022] Figure 6 It is a three-dimensional structure schematic diagram of the opening and closing component of the present invention.

[0023] Figure 7 It is a first three-dimensional structure schematic diagram of the fixing component of the present invention.

[0024] Figure 8 Schematic enlarged structure diagram of location A of the present invention.

[0025] Figure 9 Second three-dimensional structure diagram of the fixing component of the present invention.

[0026] Figure 10 First partial three-dimensional structure diagram of the sound insulation component of the present invention.

[0027] Figure 11 Schematic enlarged structure diagram of location B of the present invention.

[0028] Figure 12 Second partial three-dimensional structure diagram of the sound insulation component of the present invention.

[0029] Figure 13 Schematic enlarged structure diagram of location C of the present invention.

[0030] Figure 14 Third partial three-dimensional structure diagram of the sound insulation component of the present invention.

[0031] Figure 15 Fourth partial three-dimensional structure diagram of the sound insulation component of the present invention.

[0032] Figure 16 First three-dimensional structure diagram of the water cooling component of the present invention.

[0033] Figure 17 Second three-dimensional structure diagram of the water cooling component of the present invention.

[0034] Figure 18 Partial three-dimensional structure diagram of the water cooling component of the present invention.

[0035] Among them, the above-mentioned drawings include the following reference numerals: 1, support base; 2, cabinet; 3, spring wire; 4, charger; 5, heat dissipation component, 51, first fan, 52, second fan, 53, first filter screen, 54, second filter screen; 6, noise reduction component, 61, first sound-absorbing cotton, 62, second sound-absorbing cotton, 63, third sound-absorbing cotton; 7, opening and closing component, 71, support rod, 72, support plate, 73, first connecting rod, 74, rotating rod; 8, fixing component, 81, second connecting rod, 82, contact rod, 83, first spring, 84, third connecting rod, 85, fixing rod, 86, second spring; 9, sound insulation component, 91, first sound insulation board, 92, fourth connecting rod, 93, third spring, 94, fifth connecting rod, 95, second sound insulation board, 96, fourth spring; 10, water cooling component, 101, third filter screen, 102, third fan, 103, fourth filter screen, 104, pipeline, 105, circulation pump. Detailed implementation manners

[0036] Although the present invention may be described with respect to a particular application or industry, those skilled in the art will recognize the broader applicability of the present invention. Those of ordinary skill in the art will recognize that terms such as above, below, upward, downward, etc. are used to describe the drawings and do not represent a limitation on the scope of the present invention as defined by the appended claims. Any numerical labels such as first or second are merely illustrative and are not intended to limit the scope of the present invention in any way.

[0037] Embodiment 1

[0038] A DC charging cabinet with high heat dissipation and low noise, as Figures 1-6 shown, includes a support base 1, a cabinet 2, spring wires 3, charging heads 4, a heat dissipation component 5, a noise reduction component 6, and an opening and closing component 7. The upper part of the support base 1 is connected to the cabinet 2. Three spring wires 3 are evenly spaced and connected to both the left and right sides inside the cabinet 2. The lower parts of the spring wires 3 are all connected to the charging heads 4. A heat dissipation component 5 and a noise reduction component 6 are provided on the cabinet 2, and an opening and closing component 7 is provided on the front side of the cabinet 2.

[0039] As Figures 2-4 shown, the heat dissipation component 5 includes a first fan 51, a second fan 52, a first filter screen 53, and a second filter screen 54. Three first fans 51 are evenly spaced and connected to both the left and right sides inside the cabinet 2. The second fan 52 is connected to the upper side inside the cabinet 2. The first filter screens 53 are connected to both the front and rear sides of the upper part of the cabinet 2. The second filter screen 54 is connected to the rear side of the middle part of the cabinet 2.

[0040] As Figure 1 and Figure 5 shown, the noise reduction component 6 includes a first sound-absorbing cotton 61, a second sound-absorbing cotton 62, and a third sound-absorbing cotton 63. The first sound-absorbing cotton 61 is connected to the middle part of the rear side of the cabinet 2. The second sound-absorbing cotton 62 is connected to the rear side of the upper part of the cabinet 2. The third sound-absorbing cotton 63 is connected to the front side of the upper part of the cabinet 2.

[0041] As Figure 1 and Figure 6 shown, the opening and closing component 7 includes a support rod 71, a support plate 72, a first connecting rod 73, and a rotating rod 74. Three support rods 71 are evenly spaced and connected to both the left and right sides of the front part of the cabinet 2. The support plates 72 are rotatably connected to the support rods 71. The first connecting rods 73 are symmetrically connected to the upper sides of the support plates 72 and are slidably connected to the cabinet 2. Three rotating rods 74 are evenly spaced and rotatably connected to both the left and right sides of the front part of the cabinet 2. After the rotating rods 74 rotate 90 degrees clockwise, they can latch and fix the support plates 72.

[0042] When people need to use the charging cabinet, they put the battery into the cabinet 2, connect the charging head 4 to the battery, and then turn the support plate 72 clockwise to close it. The support plate 72 drives the first connecting rod 73 to rotate clockwise. When the support plate 72 is close to the cabinet 2, turn the rotating rod 74 clockwise by 90 degrees so that the rotating rod 74 catches and fixes the support plate 72, which plays a role in preventing the battery from falling out of the cabinet 2. When people need to take out the battery, turn the rotating rod 74 counterclockwise to reset it, and then turn the support plate 72 counterclockwise to open it, thereby driving the first connecting rod 73 to rotate counterclockwise, thus opening the cabinet 2. Then, disconnect the connection between the charging head 4 and the battery, and the battery can be taken out. When people need to dissipate heat from the battery during the charging process, start the first fan 51 and the second fan 52. The cold air enters the cabinet 2 through the second filter screen 54, and the first fan 51 conveys the cold air to the inside of the cabinet 2. At the same time, under the rotation of the second fan 52, the air in the cabinet 2 is discharged through the first filter screen 53, achieving the effect of cooling and dissipating heat for the battery. Under the action of the first sound-absorbing cotton 61 and the second sound-absorbing cotton 62, the noise generated during the battery charging process can be reduced, thus achieving the effect of reducing noise.

[0043] Embodiment 2

[0044] Based on Embodiment 1, as Figure 2 、 Figure 7 、 Figure 8 and Figure 9 shown, it further includes a fixing component 8. The fixing component 8 includes a second connecting rod 81, a contact rod 82, a first spring 83, a third connecting rod 84, a fixing rod 85 and a second spring 86. Three pairs of second connecting rods 81 are slidably connected at equal intervals on the left and right sides inside the cabinet 2. Each pair of second connecting rods 81 is symmetrically arranged left and right. When the first connecting rod 73 rotates clockwise, it will push the second connecting rod 81 to move backward. A first spring 83 is connected between each second connecting rod 81 and the cabinet 2. Contact rods 82 are connected to the rear sides of the second connecting rods 81. Three pairs of third connecting rods 84 are slidably connected at equal intervals on the left and right sides inside the cabinet 2. Each pair of third connecting rods 84 is symmetrically arranged left and right. The third connecting rod 84 is slidably connected to the contact rod 82 on the same side. When the contact rod 82 moves backward, it can push the third connecting rod 84 to move inward. Fixing rods 85 are slidably connected to the inner sides of the third connecting rods 84 in a front-back symmetric manner through chutes. The fixing rods 85 are slidably connected to the cabinet 2. A second spring 86 is connected between each fixing rod 85 and the third connecting rod 84.

[0045] When the support plate 72 is closed, the first link 73 rotates clockwise, pushing the second link 81 backward. At this time, the first spring 83 is in a compressed state. Subsequently, the second link 81 drives the contact rod 82 backward, thereby pushing the third link 84 inward. When the third link 84 moves inward, it drives the fixed rod 85 inward. When the fixed rod 85 clamps and fixes the battery, the fixed rod 85 cannot move. At this time, the third link 84 continues to move inward, and the second spring 86 is in a compressed state, playing a role in clamping and fixing the battery. When the support plate 72 is opened, it drives the first link 73 to rotate counterclockwise. The first link 73 disengages from the second link 81. Under the action of the first spring 83, it pushes the second link 81 forward, so that the contact rod 82 moves forward, driving the third link 84 outward. The second spring 86 returns to its original state, further driving the fixed rod 85 outward, thereby loosening the battery, and the battery can be taken out.

[0046] As Figure 2 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 and Figure 15 As shown, it further includes a sound insulation component 9. The sound insulation component 9 includes a first sound insulation board 91, a fourth link 92, a third spring 93, a fifth link 94, a second sound insulation board 95 and a fourth spring 96. On both the left and right sides inside the cabinet 2, three pairs of first sound insulation boards 91 are slidably arranged at equal intervals. Each pair of first sound insulation boards 91 is symmetrically arranged left and right. A third spring 93 is connected between each first sound insulation board 91 and the cabinet 2. A fourth link 92 is connected to the rear of each first sound insulation board 91. On both the left and right sides inside the cabinet 2, three fifth links 94 are slidably connected. A fourth spring 96 is connected between each fifth link 94 and the cabinet 2. When the fifth link 94 moves backward, it can push the fourth link 92 outward. Each fifth link 94 is connected to the adjacent contact rod 82. A second sound insulation board 95 is connected to the rear side of the upper part of each fifth link 94. Each second sound insulation board 95 is slidably connected to the cabinet 2.

[0047] When the support plate 72 is closed, the contact rod 82 moves backward. The contact rod 82 drives the fifth link 94 backward. The fifth link 94 drives the second sound insulation board 95 backward. The fourth spring 96 is in a compressed state. At the same time, the fifth link 94 will push the fourth link 92 outward, thereby driving the first sound insulation board 91 outward. The third spring 93 is compressed. When the cabinet 2 is opened, it plays a role in ventilation and heat dissipation. When the support plate 72 is opened, the contact rod 82 moves forward. The contact rod 82 drives the fifth link 94 forward, driving the second sound insulation board 95 forward. The fifth link 94 moves away from the fourth link 92. Under the action of the third spring 93, it pushes the first sound insulation board 91 inward to return to its original position, achieving a sound insulation effect when taking out the battery.

[0048] As Figure 2 , Figure 16 , Figure 17 and Figure 18 shown, it further includes a water cooling component 10. The water cooling component 10 includes a third filter screen 101, a third fan 102, a fourth filter screen 103, a pipeline 104 and a circulation pump 105. The third filter screens 101 are symmetrically connected to the left and right of the rear side of the lower part of the cabinet 2. The third fans 102 are symmetrically connected to the left and right of the rear side of the lower part of the cabinet 2. The fourth filter screens 103 are symmetrically connected to the left and right of the rear side of the lower part of the cabinet 2. The circulation pumps 105 are symmetrically connected to the left and right of the rear side of the lower part inside the cabinet 2. The pipelines 104 are connected between the upper and lower sides of the circulation pumps 105.

[0049] Start the circulation pump 105 and the third fan 102. The circulation pump 105 enables the coolant to circulate in the pipeline 104. When the battery is charging, it cools down the charging cabinet. Under the rotation of the third fan 102, cold air is blown towards the pipeline 104 to assist the coolant in discharging heat, achieving the effect of quickly cooling down the battery.

[0050] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A DC charging cabinet with high heat dissipation and low noise, comprising a support base (1), a cabinet (2), spring wires (3) and charging heads (4). The upper part of the support base (1) is connected to the cabinet (2). Three spring wires (3) are evenly spaced and connected to both the left and right sides inside the cabinet (2). The lower parts of the spring wires (3) are all connected to the charging heads (4). It is characterized in that, It also includes a heat dissipation component (5), a noise reduction component (6) and an opening and closing component (7). A heat dissipation component (5) for providing heat dissipation function for the battery and a noise reduction component (6) for reducing noise are provided on the cabinet (2), and an opening and closing component (7) for facilitating the sealed charging of the battery is provided on the front side of the cabinet (2); The heat dissipation component (5) includes a first fan (51), a second fan (52), a first filter screen (53) and a second filter screen (54). Three first fans (51) are evenly connected at intervals on the left and right sides inside the cabinet (2), a second fan (52) is connected to the upper side inside the cabinet (2), first filter screens (53) are connected to the front and rear sides of the upper part of the cabinet (2), and a second filter screen (54) is connected to the rear side of the middle part of the cabinet (2); The noise reduction component (6) includes a first sound-absorbing cotton (61), a second sound-absorbing cotton (62) and a third sound-absorbing cotton (63). The first sound-absorbing cotton (61) is connected to the middle part of the rear side of the cabinet (2), the second sound-absorbing cotton (62) is connected to the rear side of the upper part of the cabinet (2), and the third sound-absorbing cotton (63) is connected to the front side of the upper part of the cabinet (2); The opening and closing component (7) includes a support rod (71), a support plate (72), a first connecting rod (73) and a rotating rod (74). Three support rods (71) are evenly connected at intervals on the left and right sides of the front part of the cabinet (2), support plates (72) are rotatably connected to the support rods (71), first connecting rods (73) are symmetrically connected to the left and right sides of the upper side of the support plate (72), the first connecting rods (73) are slidably connected to the cabinet (2), and three rotating rods (74) are evenly rotatably connected at intervals on the left and right sides of the front part of the cabinet (2); It also includes a fixing component (8) for clamping and fixing the battery. The fixing component (8) includes a second connecting rod (81), a contact rod (82), a first spring (83), a third connecting rod (84), a fixing rod (85) and a second spring (86). Three pairs of second connecting rods (81) are slidably connected at intervals on the left and right sides inside the cabinet (2), each pair of second connecting rods (81) is symmetrically arranged left and right, a first spring (83) is connected between the second connecting rod (81) and the cabinet (2), contact rods (82) are connected to the rear sides of the second connecting rods (81), three pairs of third connecting rods (84) are slidably connected at intervals on the left and right sides inside the cabinet (2), each pair of third connecting rods (84) is symmetrically arranged left and right, the third connecting rods (84) are slidably connected to the contact rods (82), fixing rods (85) are slidably connected symmetrically before and after on the inner sides of the third connecting rods (84), the fixing rods (85) are slidably connected to the cabinet (2), and a second spring (86) is connected between the fixing rod (85) and the third connecting rod (84); It further includes a sound insulation component (9) for isolating the noise inside the cabinet (2) when taking out the battery. The sound insulation component (9) includes a first sound insulation board (91), a fourth connecting rod (92), a third spring (93), a fifth connecting rod (94), a second sound insulation board (95) and a fourth spring (96). On both the left and right sides inside the cabinet (2), three pairs of first sound insulation boards (91) are slidably arranged at equal intervals. Each pair of first sound insulation boards (91) is symmetrically arranged left and right. A third spring (93) is connected between each first sound insulation board (91) and the cabinet (2). A fourth connecting rod (92) is connected to the rear of each first sound insulation board (91). Three fifth connecting rods (94) are slidably connected to both the left and right sides inside the cabinet (2). A fourth spring (96) is connected between each fifth connecting rod (94) and the cabinet (2). Each fifth connecting rod (94) is connected to the adjacent contact rod (82). A second sound insulation board (95) is connected to the rear side of the upper part of each fifth connecting rod (94). Each second sound insulation board (95) is slidably connected to the cabinet (2).

2. The high heat dissipation and low noise DC charging cabinet according to claim 1, wherein It further includes a water cooling component (10) for accelerating the cooling and heat dissipation of the battery. The water cooling component (10) includes a third filter screen (101), a third fan (102), a fourth filter screen (103), a pipeline (104) and a circulation pump (105). The third filter screens (101) are symmetrically connected to the left and right sides of the rear side of the lower part of the cabinet (2). The third fans (102) are symmetrically connected to the left and right sides of the rear side of the lower part of the cabinet (2). The fourth filter screens (103) are symmetrically connected to the left and right sides of the rear side of the lower part of the cabinet (2). The circulation pumps (105) are symmetrically connected to the left and right sides of the rear side of the lower part inside the cabinet (2). A pipeline (104) is connected between the upper and lower sides of each circulation pump (105).

3. The high heat dissipation and low noise DC charging cabinet according to claim 2, characterized in that: Chute grooves are symmetrically formed in the front and rear directions on the inner sides of the third connecting rods (84), and the fixed rods (85) are located in the chute grooves.

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