Environment-friendly cabinet with heat dissipation device

Abstract

The invention discloses an environment-friendly cabinet with a heat dissipation device, which comprises a cabinet body, the heat dissipation device is arranged on the cabinet body, and the cabinet body comprises a top wall, a rear wall, a side wall I and a side wall II, the heat dissipation device comprises a cooling box arranged on the rear wall, a first cooling pipe arranged on the top wall, a second cooling pipe arranged on the side, close to the top wall, of the cooling box in a winding mode and a third cooling pipe arranged in the cooling box in a winding mode, an air outlet is formed in the top wall, an air inlet is formed in the first side wall, and the air outlet is connected with a port, facing the air outlet, of the first cooling pipe through an air pump. The end opening, away from the cooling box, of the second cooling pipe is connected with the end opening, away from the sucking pump, of the first cooling pipe, the two ends of the third cooling pipe penetrate out of the top of the cooling box, and the two ends of the third cooling pipe are connected with the air inlet and the end opening, away from the first cooling pipe, of the second cooling pipe respectively. And the positions of the air inlet and the air outlet are staggered, so that electrical elements in the cabinet body can be fully cooled, and the problem of over-high local temperature is not easy to occur.

Description

Technical Field

[0001] The invention belongs to the technical field of environmental protection cabinets, and in particular relates to an environmental protection cabinet with a heat dissipation device. Background Art

[0002] Gas insulated environmental protection cabinets are filled with environmentally friendly insulating inert gas inside the cabinet, thereby insulating and protecting the power devices inside the cabinet. They are important switchgear for ring network power supply and terminal power supply. Environmental protection cabinets are widely used in various places such as power plants and substations.

[0003] Electrical components will generate heat during use, and environmental protection cabinets usually adopt a fully sealed structure. In order to prevent the internal temperature of the cabinet from being too high and causing electrical component failures, existing environmental protection cabinets are usually provided with a heat dissipation structure. The utility model patent with application number 202121666484.5 discloses a gas-insulated metal enclosed switch cabinet that is easy to maintain. By setting a heat dissipation device, the inside of the cabinet is cooled to solve the problem of poor ventilation in the closed gas-insulated switch cabinet, which easily causes the internal temperature of the switch cabinet to be too high. However, the patent has the following problems: 1. The patent moves cooling water inside the cooling pipe to cool the inside of the cabinet, and the cooling pipe has the risk of leakage, which may cause damage to the electrical components inside the cabinet, and the patent requires additional cooling water supply and collection devices; 2. The position of the heat dissipation device is such that electrical components far away from the heat dissipation device may not be cooled to a suitable temperature through the heat dissipation device. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a cooling structure that can cool the interior of a cabinet without causing damage to electrical components inside the cabinet.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an environmental protection cabinet with a heat dissipation device, including a cabinet body, on which a heat dissipation device is provided, the cabinet body including a top wall, a rear wall, a side wall one and a side wall two, the heat dissipation device including a cooling box arranged on the rear wall, a cooling pipe one arranged on the top wall, a cooling pipe two meanderingly arranged on the side of the cooling box close to the top wall and a cooling pipe three meanderingly arranged in the cooling box, the top wall is provided with an air outlet, the side wall one, the side wall two or the rear wall is provided with an air inlet, the air outlet and the port of cooling pipe one facing the air outlet are connected through an exhaust pump, the port of cooling pipe two away from the cooling box is connected to the port of cooling pipe one away from the exhaust pump, both ends of cooling pipe three pass through the top of the cooling box, and the two ends of cooling pipe three are respectively connected to the air inlet and the port of cooling pipe two away from cooling pipe one.

[0006] By adopting the above scheme, when the present invention is actually used, the vacuum pump allows the hot gas inside the cabinet to enter cooling tube one from the air outlet, and enter cooling tube two along cooling tube one for cooling, and the gas with lowered temperature enters cooling tube three from cooling tube two, and the coolant in the cooling box further cools the gas in cooling tube three, and the cooled gas re-enters the cabinet through the air inlet, thereby reducing the overall temperature inside the cabinet.

[0007] The direction of cooling pipe 2 makes the cooling effect better, which can prevent the temperature of the gas entering cooling pipe 3 from being too high, prevent the coolant from heating up too quickly, and ensure the cooling effect of the coolant. The direction of cooling pipe 3 allows the coolant to cool cooling pipe 3 better. Both ends of cooling pipe 3 pass through the top of the cooling box to prevent leakage from the position where cooling pipe 3 enters or passes through the cooling box.

[0008] Compared with the prior art, the present invention does not prevent the coolant from entering the interior of the cabinet, and the positions of the air inlet and the air outlet are staggered. After the gas enters the interior of the cabinet from the air inlet, there is still a certain impact, so that the cooled gas can be better diffused in the cabinet, so that the electrical components in the cabinet can fully dissipate heat, and the problem of local overtemperature is not easy to occur.

[0009] As a further configuration of the present invention, the air inlet is arranged on a side of the side wall one away from the top wall, the air outlet is located on a side of the top wall away from the side wall one, there are at least two air inlets, and all of the air inlets are arranged in a direction parallel to the top wall, and one end of the cooling tube three away from the cooling tube two is provided with ports with the same number of air inlets, and the ports of the cooling tube three away from the cooling tube two are connected to the air inlets one-to-one.

[0010] By adopting the above solution, the cooled gas can be more evenly distributed in the cabinet, thus preventing the situation where the temperature in some parts of the cabinet is not ideally reduced.

[0011] As a further configuration of the present invention, the heat dissipation device also includes heat dissipation fins arranged on side wall one and side wall two, and the cooling tube two is provided with heat dissipation fins extending in a direction away from the cabinet, and the heat dissipation fins are curved along the radial cross-section of the cooling tube two.

[0012] By adopting the above solution, the heat dissipation fins improve the heat dissipation effect of the side wall 1 and the side wall 2. The heat dissipation fins improve the heat dissipation effect of the cooling tube 2. Preferably, the side of the heat dissipation fins away from the cooling tube 2 is close to the cooling box, so that the heat dissipation fins are tilted, which can increase the length of the heat dissipation fins and improve the heat dissipation effect.

[0013] As a further configuration of the present invention, the heat dissipation device also includes an air blower 1 arranged on the side of the cooling box close to the top wall, the air blowers 1 are at least two and are arranged in sequence in the direction away from the cooling box, the air blower 1 is arranged at the intersection of the rear wall and the side wall 1 or at the intersection of the rear wall and the side wall 2, and the air blower 1 supplies air to the cooling pipe 2.

[0014] By adopting the above solution, the temperature of the gas can be reduced to a greater extent when passing through the cooling tube 2, and the temperature near the rear wall can be prevented from being too high, thereby ensuring the heat dissipation effect of the heat dissipation device. Compared with a large fan, multiple blowers 1 arranged in sequence can reduce the space required for the heat dissipation device and make the gas flow outside the cooling tube 2 more balanced. It is preferred that there is a certain gap between the cooling tube 2 and the rear wall to achieve a better heat dissipation effect.

[0015] As a further configuration of the present invention, two heat dissipation ports are provided on the top of the cooling box, and both ends of the cooling pipe three respectively pass through the two heat dissipation ports. An agitator is provided on the top of the cooling box, and the agitator includes a stirring rod passed through the interior of the cooling box, and a plurality of blades are provided on the stirring rod.

[0016] With the above solution, the coolant in the cooling box cools down the gas in the cooling tube 3, and its own temperature rises. The stirring of the stirring rod can accelerate the cooling of the coolant and reduce the number of times the staff replaces the coolant. The heat dissipation port is convenient for the coolant to dissipate heat, and it is also convenient for the staff to replace or add coolant. Under the action of the blower 1, the water vapor overflowing from the heat dissipation port will not adhere to the cooling tube 2 and the rear wall, keeping the cabinet surface dry.

[0017] As a further configuration of the present invention, all the blades are staggered, and an angle exists between the blades and the axis of the stirring rod.

[0018] By adopting the above scheme, the coolant can be stirred better, so that the cooling effect is better.

[0019] As a further configuration of the present invention, the blower 1 is located on the side of the rear wall away from the side wall 2, and the heat dissipation device also includes at least two blowers 2 arranged on the side of the side wall 2 away from the rear wall, the arrangement direction of all the blowers 2 is consistent with the arrangement direction of all the blowers 1, and the blowers 2 supply air to the cooling fins on the side wall 2.

[0020] The above solution is adopted to improve the heat dissipation effect.

[0021] As a further configuration of the present invention, a fixing frame is provided on the rear wall, the blower is fixed on the fixing frame, a limiting cavity with an opening facing away from the cooling box is provided on the rear wall, and the fixing frame includes a limiting block that can be embedded in the limiting cavity and forms a limit with the limiting cavity.

[0022] By adopting the above scheme, the number of blowers 1 can be freely selected or not to be installed according to the temperature rise in the cabinet. The blower 1 can be fixed to the cabinet by the fixing frame 1, and there is no need to drill holes in the cabinet, so that the rear wall remains intact and the cabinet is better sealed. As the use time increases, dust will accumulate on the blower 1 or malfunction will occur. The fixing method of the fixing frame 1 and the cabinet makes it convenient to clean, repair or replace the blower 1 later.

[0023] As a further configuration of the present invention, a second fixing frame is provided on the second side wall, the second blower is fixed on the second fixing frame, and a second limiting cavity with an upward opening is provided on the second side wall, and the second fixing frame includes a second limiting block that can be embedded in the second limiting cavity and form a limit with the second limiting cavity.

[0024] By adopting the above scheme, the number of the second blower can be freely selected or the second blower can be not installed according to the temperature rise in the cabinet. The second blower can be fixed to the cabinet by the second fixing frame, and there is no need to drill holes in the cabinet, so that the second side wall remains intact and the cabinet is better sealed. As the use time increases, dust will accumulate on the second blower or malfunction will occur. The fixing method of the second fixing frame and the cabinet makes it convenient to clean, repair or replace the second blower later.

[0025] As a further configuration of the present invention, it also includes an air guide room, which is composed of an air guide cover 1 covered on the rear wall and an air guide cover 2 covered on the side wall 2, the air guide cover 1 is fixed to the fixing frame 1 by bolts, the air guide cover 2 is fixed to the fixing frame 2 by bolts, an exhaust duct is provided at the intersection of the air guide cover 1 and the air guide cover 2, and an exhaust fan is provided in the exhaust duct.

[0026] With the above solution, the exhaust pipe is away from the pipe opening of the cabinet and faces the outside. Under the action of the blower 1 and the blower 2, the hot air around the cabinet is concentrated at the junction of the side wall 2 and the rear wall, and the hot air is guided to the outside by the exhaust fan, so as to prevent the situation that the temperature around the cabinet is too high and affects the work of the staff. The present invention is further described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Attached Figure 1 It is an overall schematic diagram of a specific embodiment of the present invention;

[0028] Attached Figure 2 This is a schematic diagram of the wiring of cooling pipe 1 and cooling pipe 2 according to a specific embodiment of the present invention;

[0029] Attached Figure 3 This is a schematic diagram of the wiring of cooling pipe 2 and cooling pipe 3 according to a specific embodiment of the present invention;

[0030] Attached Figure 4 It is a schematic diagram of a side wall of a specific embodiment of the present invention;

[0031] Attached Figure 5 It is a schematic cross-sectional view taken along line AA of FIG. A;

[0032] Attached Figure 6 It is a schematic cross-sectional view of a cooling tube according to a specific embodiment of the present invention;

[0033] Attached Figure 7 It is a schematic diagram of the coordination between the fixing frame 1, the fixing frame 2 and the cabinet according to a specific embodiment of the present invention.

[0034] Cabinet 1, top wall 11, air outlet 111, rear wall 12, limit cavity 121, side wall 13, air inlet 131, side wall 2 14, limit cavity 2 141, cooling box 2, heat dissipation port 21, stirrer 22, stirring rod 221, blade 222, cooling tube 1 31, cooling tube 2 32, heat sink 321, cooling tube 3 33, vacuum pump 4, heat sink fin 5, blower 1 6, blower 2 7, fixing frame 1 8, limit block 1 81, fixing frame 2 9, limit block 2 91, air guide cover 1 101, air guide cover 2 102, exhaust duct 103. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that, unless otherwise specified, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. used in the description to indicate the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0037] The specific implementation example of the present invention is Figure 1-7 shown.

[0038] An environmental protection cabinet with a heat dissipation device comprises a cabinet body 1, the cabinet body 1 comprises a top wall 11, a rear wall 12, a side wall 13 and a side wall 2 14, a cooling box 2 is provided on the side of the rear wall 12 away from the top wall 11, a cooling pipe 1 31 is provided on the top wall 11, a cooling pipe 2 32 winding upward is provided on the side of the cooling box 2 close to the top wall 11, and a cooling pipe 3 33 winding is provided in the cooling box 2. An air outlet 111 is provided on the side of the top wall 11 away from the side wall 13, an air inlet 131 is provided on the side of the side wall 13 away from the top wall 11, the air outlet 111 and a port of the cooling pipe 1 31 facing the air outlet 111 are connected through an air pump 4, a port of the cooling pipe 2 32 away from the cooling box 2 is connected to a port of the cooling pipe 1 31 away from the air pump 4, and both ends of the cooling pipe 33 are respectively connected to the air inlet 131 and a port of the cooling pipe 2 32 away from the cooling pipe 1 31.

[0039] When this embodiment is actually used, the vacuum pump 4 allows the hot gas inside the cabinet 1 to enter the cooling tube 1 31 from the air outlet 111, and enter the cooling tube 2 32 along the cooling tube 1 31 for cooling. The gas with a lowered temperature enters the cooling tube 3 33 from the cooling tube 2 32. The coolant in the cooling box 2 further cools the gas in the cooling tube 3 33. The gas after cooling re-enters the cabinet 1 through the air inlet 131, thereby reducing the overall temperature inside the cabinet 1. The direction of the cooling tube 2 32 makes the cooling effect better, which can prevent the temperature of the gas entering the cooling tube 3 33 from being too high, prevent the coolant from heating up too quickly, and ensure the cooling effect of the coolant. The direction of the cooling tube 3 33 enables the coolant to cool the cooling tube 3 33 better. Both ends of the cooling tube 3 33 pass through the top of the cooling box 2 to prevent the coolant from leaking from the position where the cooling tube 3 33 passes through or passes through the cooling box 2.

[0040] Compared with the prior art, the coolant in this embodiment will not enter the interior of the cabinet 1, and the positions of the air inlet 131 and the air outlet 111 are staggered. After the gas enters the interior of the cabinet 1 from the air inlet 131, there is still a certain impact, so that the cooled gas can be better diffused in the cabinet 1, so that the electrical components in the cabinet 1 can fully dissipate heat, and the problem of local overtemperature is not easy to occur.

[0041] In this embodiment, three air inlets 131 are provided, and all the air inlets 131 are arranged in a direction parallel to the top wall 11. One end of the cooling pipe 3 33 away from the cooling pipe 2 32 is provided with ports with the same number as the air inlets 131, and the ports of the cooling pipe 3 33 away from the cooling pipe 2 32 are connected to the air inlets 131 in a one-to-one correspondence. This allows the cooled gas to be more evenly distributed in the cabinet 1, and prevents the situation where the temperature in some positions in the cabinet 1 is not ideal.

[0042] The side wall 1 13 and the side wall 2 14 are both provided with heat dissipation fins 5, which improve the heat dissipation effect of the side wall 1 13 and the side wall 2 14. The cooling tube 2 32 is provided with a heat dissipation fin 321 extending in a direction away from the cabinet 1, and the heat dissipation fin 321 is curved along the radial cross section of the cooling tube 2 32. The heat dissipation fin 321 improves the heat dissipation effect of the cooling tube 2 32. In this embodiment, the side of the heat dissipation fin 321 away from the cooling tube 2 32 is close to the cooling box 2, so that the heat dissipation fin 321 is inclined, which can increase the length of the heat dissipation fin 321 and improve the heat dissipation effect.

[0043] In this embodiment, five blowers 6 are provided on the side of the cooling box 2 close to the top wall 11, and all blowers 6 are arranged in sequence in the direction away from the cooling box 2. Blowers 6 are arranged at the junction of the rear wall 12 and the side wall 13 and supply air to the cooling pipe 2 32. When the blowers 6 allow the gas to pass through the cooling pipe 2 32, the temperature reduction is greater, and the temperature near the rear wall 12 can be prevented from being too high, thereby ensuring the heat dissipation effect. Compared with a large blower, multiple blowers 6 arranged in sequence can reduce the space required for the heat dissipation device, and make the gas flow outside the cooling pipe 2 32 more balanced. In this embodiment, there is a certain gap between the cooling pipe 2 32 and the rear wall 12, so that the heat dissipation effect is better.

[0044] In this embodiment, eight blowers 2 7 are provided on the side of the side wall 2 14 away from the rear wall 12 , and the arrangement direction of all blowers 2 7 is consistent with the arrangement direction of all blowers 1 6 , and the blowers 2 7 supply air to the heat dissipation fins 5 on the side wall 2 14 .

[0045] A fixing frame 8 is provided on the rear wall 12, and the blower 6 is fixed on the fixing frame 8. A limiting cavity 121 with an opening facing away from the cooling box 2 is provided on the rear wall 12. The fixing frame 8 includes a limiting block 81 that can be embedded in the limiting cavity 121 and forms a limit with the limiting cavity 121. In this embodiment, three limiting cavities 121 and three limiting blocks 81 are provided. The number of blowers 6 can be freely selected or blowers 6 are not installed according to the temperature rise in the cabinet 1. The blower 6 can be fixed to the cabinet 1 by the fixing frame 8, and there is no need to punch holes on the cabinet 1, so that the rear wall 12 remains intact and the cabinet 1 has better sealing. As the use time increases, dust will accumulate on the blower 6 or malfunctions will occur. The fixing method of the fixing frame 8 and the cabinet 1 facilitates the cleaning, maintenance or replacement of the blower 6 in the later stage.

[0046] A fixing frame 29 is provided on the side wall 14, and the air blower 27 is fixed on the fixing frame 29. A limiting cavity 2141 with an opening facing upward is provided on the side wall 14. The fixing frame 29 includes a limiting block 2141 that can be embedded in the limiting cavity 141 and forms a limit with the limiting cavity 141. In this embodiment, three limiting cavities 141 and three limiting blocks 2141 are provided. The number of air blowers 27 can be freely selected or air blowers 27 can be not installed according to the temperature rise in the cabinet 1. The air blower 27 can be fixed to the cabinet 1 by the fixing frame 29, and there is no need to punch holes on the cabinet 1, so that the side wall 14 remains intact and the cabinet 1 has better sealing. As the use time increases, dust will accumulate on the air blower 27 or malfunctions will occur. The fixing method of the fixing frame 29 and the cabinet 1 facilitates the cleaning, maintenance or replacement of the air blower 27 in the later stage.

[0047] The upper cover of the rear wall 12 is provided with an air guide cover 101, and the upper cover of the side wall 14 is provided with an air guide cover 2 102. The air guide cover 101 is fixed to the fixing frame 1 8 by bolts, and the air guide cover 2 102 is fixed to the fixing frame 2 9 by bolts. An exhaust duct 103 is provided at the intersection of the air guide cover 101 and the air guide cover 2 102, and an exhaust fan is provided in the exhaust duct 103. The exhaust duct 103 is away from the pipe opening of the cabinet 1 and faces the outdoors. Under the action of the air supply fan 1 6 and the air supply fan 2 7, the hot air around the cabinet 1 is concentrated at the intersection of the side wall 2 14 and the rear wall 12, and the hot air is guided to the outdoors through the exhaust fan to prevent the high temperature around the cabinet 1 from affecting the work of the staff.

[0048] The top of the cooling box 2 is provided with two heat dissipation ports 21, and the two ends of the cooling pipe three 33 respectively pass through the two heat dissipation ports 21. The top of the cooling box 2 is provided with a stirrer 22, and the stirrer 22 includes a stirring rod 221 that passes through the inside of the cooling box 2, and a plurality of blades 222 are provided on the stirring rod 221. After the coolant in the cooling box 2 cools the gas in the cooling pipe three 33, its own temperature rises. The stirring of the stirring rod 221 can accelerate the cooling of the coolant. All the blades 222 are staggered, and there is an angle between the blades 222 and the axis of the stirring rod 221, which can better stir the coolant, make the cooling effect better, and reduce the number of times the staff replaces the coolant. The heat dissipation port 21 is convenient for the coolant to dissipate heat, and it is also convenient for the staff to replace or add the coolant. Under the action of the blower 1 6, the water vapor overflowing from the heat dissipation port 21 will not adhere to the cooling pipe 2 32 and the rear wall 12, so as to keep the surface of the cabinet 1 dry.

[0049] The present invention is not limited to the above-mentioned specific implementation modes. A person skilled in the art may adopt other various specific implementation modes to implement the present invention based on the contents disclosed in the present invention, or any simple changes or modifications made to the design structure and concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. An environmental protection cabinet with a heat dissipation device, comprising a cabinet body, wherein the cabinet body is provided with a heat dissipation device, characterized in that: The cabinet body includes a top wall, a rear wall, a side wall one and a side wall two, the heat dissipation device includes a cooling box arranged on the rear wall, a cooling pipe one arranged on the top wall, a cooling pipe two meanderingly arranged on the side of the cooling box close to the top wall and a cooling pipe three meanderingly arranged in the cooling box, the top wall is provided with an air outlet, the side wall one, the side wall two or the rear wall is provided with an air inlet, the air outlet and the port of cooling pipe one facing the air outlet are connected through an air extraction pump, the port of cooling pipe two away from the cooling box is connected to the port of cooling pipe one away from the air extraction pump, both ends of cooling pipe three pass through the top of the cooling box, and the two ends of cooling pipe three are respectively connected to the air inlet and the port of cooling pipe two away from cooling pipe one.

2. The environmental protection cabinet with a heat dissipation device according to claim 1, characterized in that: The air inlet is arranged on a side of the side wall one away from the top wall, the air outlet is located on a side of the top wall away from the side wall one, there are at least two air inlets, and all of the air inlets are arranged in a direction parallel to the top wall, and one end of the cooling tube three away from the cooling tube two is provided with ports with the same number of air inlets, and the ports of the cooling tube three away from the cooling tube two are connected to the air inlets one by one.

3. The environmental protection cabinet with a heat dissipation device according to claim 2, characterized in that: The heat dissipation device also includes heat dissipation fins arranged on the first side wall and the second side wall. The second cooling tube is provided with heat dissipation fins extending in a direction away from the cabinet. The heat dissipation fins are bent along the radial cross section of the second cooling tube.

4. The environmental protection cabinet with a heat dissipation device according to claim 3, characterized in that: The heat dissipation device also includes an air blower 1 arranged on one side of the cooling box close to the top wall. There are at least two air blowers 1 and they are arranged in sequence in the direction away from the cooling box. The air blower 1 is arranged at the intersection of the rear wall and the side wall 1 or at the intersection of the rear wall and the side wall 2, and the air blower 1 supplies air to the cooling pipe 2.

5. The environmental protection cabinet with a heat dissipation device according to claim 4, characterized in that: The top of the cooling box is provided with two heat dissipation openings, and the two ends of the cooling pipe three respectively pass through the two heat dissipation openings. The top of the cooling box is provided with a stirrer, and the stirrer includes a stirring rod that passes through the interior of the cooling box, and the stirring rod is provided with multiple blades.

6. The environmental protection cabinet with a heat dissipation device according to claim 5, characterized in that: All the blades are staggered, and an angle exists between the blades and the axis of the stirring rod.

7. An environmental protection cabinet with a heat dissipation device according to claim 4 or 6, characterized in that: The blower 1 is located on the side of the rear wall away from the side wall 2, and the heat dissipation device also includes at least two blowers 2 arranged on the side of the side wall 2 away from the rear wall. The arrangement direction of all the blowers 2 is consistent with the arrangement direction of all the blowers 1, and the blowers 2 supply air to the cooling fins on the side wall 2.

8. The environmental protection cabinet with a heat dissipation device according to claim 7, characterized in that: A fixing frame 1 is provided on the rear wall, and the blower 1 is fixed on the fixing frame 1. A limiting cavity 1 with an opening facing away from the cooling box is provided on the rear wall, and the fixing frame 1 includes a limiting block 1 that can be embedded in the limiting cavity 1 and forms a limit with the limiting cavity 1.

9. The environmental protection cabinet with a heat dissipation device according to claim 8, characterized in that: A second fixing frame is provided on the second side wall, and the second blower is fixed on the second fixing frame. A second limiting cavity with an upward opening is provided on the second side wall, and the second fixing frame includes a second limiting block that can be embedded in the second limiting cavity and forms a limit with the second limiting cavity.

10. The environmental protection cabinet with a heat dissipation device according to claim 9, characterized in that: It also includes an air guide room, which is composed of an air guide cover 1 covered on the rear wall and an air guide cover 2 covered on the side wall 2. The air guide cover 1 is fixed to the fixing frame 1 by bolts, and the air guide cover 2 is fixed to the fixing frame 2 by bolts. An exhaust duct is provided at the intersection of the air guide cover 1 and the air guide cover 2, and an exhaust fan is provided in the exhaust duct.

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