Auxiliary heat dissipation device for power equipment

Abstract

The invention discloses an auxiliary heat dissipation device for power equipment, relates to the technical field of heat dissipation of the power equipment, and solves the technical problems that the heat dissipation effect of the power equipment close to a second heat dissipation device is the best, and the heat dissipation effect of the power equipment on the uppermost layer is relatively weak. Comprising a heat dissipation box body, and a lateral ventilation channel is formed in the side face of the heat dissipation box body; the auxiliary heat dissipation structure is arranged in the heat dissipation box body and is used for dissipating heat of the power equipment; according to the invention, external air can be sucked into the middle position of the heat dissipation box body, is cooled from the middle position of the heat dissipation box body, is pressurized from the two sides and is conveyed outwards, electrical equipment on the two sides of the air outlet frame is subjected to full air cooling heat dissipation, the circulation rate of pressurized air is increased, the flowing range of the pressurized air is larger, the heat dissipation effect of the electrical equipment is improved, and the service life of the electrical equipment is prolonged. And outdoor rainwater is collected and cooled, and the fiber ice curtain is matched, so that sucked outdoor air can be better cooled, and heat dissipation of the power equipment can be realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of heat dissipation of electric equipment, and in particular is an auxiliary heat dissipation device for electric equipment, and in particular is an auxiliary heat dissipation device for electric equipment used for outdoor electric equipment. Background Art

[0002] Power equipment mainly includes two categories: power generation equipment and power supply equipment. Power generation equipment mainly includes power station boilers, steam turbines, gas turbines, water turbines, generators, transformers, etc. Power supply equipment mainly includes transmission lines of various voltage levels, mutual inductors, contactors, etc. When power equipment is used, a power equipment box is required. Power equipment will generate a lot of heat when working, so it is necessary to dissipate the heat of the power equipment to reduce the heat loss of the power equipment itself.

[0003] For example, the heat dissipation device for electric equipment with publication number CN111799687A comprises: a box body having a accommodating space; a fixing plate having a plurality of air holes, the fixing plate being arranged in the box body, the fixing plate being spaced apart from the top surface of the box body and the bottom surface of the box body, and the electric equipment being arranged on the fixing plate; a second heat dissipation device, the second heat dissipation device being arranged below the fixing plate; and a first heat dissipation device, the first heat dissipation device being arranged on the side wall of the box body, and the first heat dissipation device being located above the fixing plate.

[0004] In the above patent, the power equipment is cooled by the wind being sucked through the first heat sink and then flowing through the second heat sink for cooling. The cooled wind flows horizontally through the heat dissipation holes, so that the power equipment close to the second heat sink has the best heat dissipation effect, while the heat dissipation effect of the power equipment on the top layer is relatively weak, affecting the overall heat dissipation effect of the power equipment. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art; to this end, the present invention proposes an auxiliary heat dissipation device for electric power equipment.

[0006] An auxiliary heat dissipation device for electric power equipment, comprising: A heat dissipation box, wherein a lateral ventilation duct is provided on the side of the heat dissipation box; An auxiliary heat dissipation structure installed inside the heat dissipation box to dissipate heat from power equipment; The auxiliary heat dissipation structure includes an air outlet frame that divides the internal space of the heat dissipation box into two cavities for installing power equipment, a fiber ice curtain attached to the inner wall of the air outlet frame, a water storage tank installed on the top of the heat dissipation box to store outdoor rainwater, a suction fan for sucking air, and a refrigeration component for cooling the water stored in the water storage tank; A plurality of ventilation holes are evenly arranged on the side of the air outlet frame.

[0007] Preferably, a rectangular hole communicating with the interior of the air outlet frame is provided on the upper surface of the heat dissipation box body, a plurality of suction fans are arranged in the rectangular hole, and a driving motor for driving the suction fans to rotate is arranged at the bottom of the suction fans.

[0008] Preferably, a water supply component is provided between the inner surface of the water storage tank and the fiber ice curtain, and the water supply component includes a water supply pump installed on the inner side of the water storage tank, and the water outlet of the water supply pump is connected to a water supply pipe that passes through the top of the heat dissipation box body, and the free end of the water supply pipe is connected to a longitudinal water pipe installed on the upper side of the air outlet frame, and the inner side of the longitudinal water pipe is connected to the fiber ice curtain.

[0009] Preferably, the refrigeration component includes a protective shell installed on the inner wall of the water tank, a refrigeration plate is arranged inside the protective shell, a battery box is arranged on the top of the protective shell, a connecting wire is arranged between the battery box and the refrigeration plate, and a plurality of metal rods are arranged between the inner surface of the protective shell and the refrigeration plate.

[0010] Preferably, the ventilation hole comprises an air expansion section and a pressurizing section, the air expansion section is respectively located on the inner side and the outer side of the air outlet frame, and the pressurizing section is located between the two air expansion sections.

[0011] Preferably, dehumidification components are provided on both sides of the air outlet frame, and the dehumidification components include lateral screw rods located on the outer sides of the upper and lower ends of the air outlet frame. The dehumidification components also include multiple dehumidification plates rotatably connected to each other, and the multiple dehumidification plates form a dehumidification folding plate, and a number of small holes are opened on both sides of the dehumidification plate. The dehumidification plate is a hollow structure, and the interior of the dehumidification plate is filled with adsorption material.

[0012] Preferably, the front and rear ends of the dehumidification folding plate are respectively connected to a front baffle and a rear baffle, and the rear end of the lateral screw rod is provided with a micro motor installed on the inner wall of the heat dissipation box.

[0013] Preferably, a fixed block is provided on the front surface of the front baffle, a nut block is screwed onto the lateral screw rod, a fixed protrusion is provided on the side of the nut block, and the fixed protrusion is rotatably connected to the fixed block via a rotating shaft.

[0014] Preferably, a protective cover located above the suction fan is provided on the inner side surface of the water tank, a support plate is provided between the protective cover and the inner wall of the water tank, and a space for air circulation is left between the protective cover and the water tank.

[0015] Preferably, a filter screen located above the suction fan is provided on the top of the heat dissipation box.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention can draw outside air into the middle position of the heat dissipation box, cool it down from the middle position of the heat dissipation box, and transport it outward from both sides after being pressurized, so as to fully cool the power equipment located on both sides of the air outlet frame. The flow rate of the pressurized gas is increased and the flow range is larger, thereby improving the heat dissipation effect on the power equipment. It can collect and cool outdoor rainwater, and cooperate with the fiber ice curtain to better cool the drawn outdoor air and dissipate the heat of the power equipment.

[0017] (2) The present invention can cool the water stored in the water tank through the designed refrigeration components, maintain the low temperature of the fiber ice curtain, and facilitate cooling the air. The ventilation holes can play a certain pressurizing role on the discharged low-temperature air, increase the speed of the low-temperature air rushing to the outside, and facilitate rapid heat dissipation and cooling of the power equipment.

[0018] (3) The present invention has a dehumidification component that, when unfolded, can adsorb and dry the discharged cooling air, thereby reducing the humidity of the heat dissipation box and keeping the power equipment in a suitable humidity environment. When folded, the dehumidification component can allow the low-temperature air to carry some mist when discharged, thereby keeping the heat dissipation box in a suitable humidity and reducing the static electricity level of the power equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the heat dissipation device for electric power equipment of the present invention; Figure 2 It is a cross-sectional view of the heat dissipation device for electric power equipment of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the structure of the auxiliary heat dissipation structure; Figure 4 For the present invention Figure 3 Structural schematic diagram of the middle water delivery component; Figure 5 For the present invention Figure 3 Schematic diagram of the internal structure of the refrigeration component; Figure 6 For the present invention Figure 3 A cross-sectional view of the middle vent; Figure 7 For the present invention Figure 1 The structural diagram of the dehumidification component; Figure 8 For the present invention Figure 7 A magnified image of area A; In the figure: 100, heat dissipation box; 101, lateral ventilation duct; 200, auxiliary heat dissipation structure; 201, water storage tank; 2011, protective cover; 202, guide cover; 203, refrigeration component; 2031, battery box; 2032, refrigeration plate; 2033, protective shell; 2034, connecting wire; 2035, metal rod; 204, air outlet frame; 205, fiber ice curtain; 206, suction fan; 207, water supply component; 2071, water supply pump; 2072 , water supply pipe; 2073, longitudinal water pipe; 2074, water valve; 208, ventilation hole; 2081, air expansion section; 2082, pressurization section; 209, liquid level monitoring meter; 210, filter; 211, drive motor; 300, dehumidification component; 301, lateral screw rod; 302, micro motor; 303, front baffle; 304, dehumidification plate; 305, nut block; 306, fixed block; 307, fixed protrusion; 308, rotating shaft; 309, rear baffle. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than 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.

[0021] Embodiment 1 See also Figure 1 - Figure 4 The present application provides an auxiliary heat dissipation device for electric power equipment, comprising: A heat dissipation box 100, wherein a lateral ventilation passage 101 is provided on the side of the heat dissipation box 100; The auxiliary heat dissipation structure 200 installed inside the heat dissipation box 100 for dissipating heat for the power equipment can be used to draw outside air into the middle position of the heat dissipation box 100, cool it from the middle position of the heat dissipation box 100, and transport it outward from both sides after pressurization, so as to fully cool the power equipment located on both sides of the air outlet frame 204, and the circulation rate of the pressurized gas is increased and the flow range is larger, so as to improve the heat dissipation effect of the power equipment, collect and cool the outdoor rainwater, and cooperate with the fiber ice curtain 205 to better cool the sucked outdoor air and dissipate heat for the power equipment; The auxiliary heat dissipation structure 200 includes an air outlet frame 204 that divides the internal space of the heat dissipation box 100 into two cavities for installing power equipment, a fiber ice curtain 205 attached to the inner wall of the air outlet frame 204, a water tank 201 installed on the top of the heat dissipation box 100 to store outdoor rainwater, a suction fan 206 for sucking air, and a refrigeration component 203 for cooling the water stored in the water tank 201. The refrigeration component 203 cools the water in the water tank 201, and the cooled water cooperates with the fiber ice curtain 205 to cool the gas, thereby improving the heat dissipation effect on the power equipment. A liquid level monitoring meter 209 is provided on the inner wall of the water tank 201 to monitor the liquid level inside the water tank 201. At the same time, a guide cover 202 is provided on the top of the water tank 201 to facilitate the collection of rainwater. A water pipe is also provided on the rear surface of the water tank 201, and the water pipe is connected to the external water supply system, so that the water level in the water tank 201 can be replenished when it is insufficient. A plurality of ventilation holes 208 are evenly arranged on the side of the air outlet frame 204 to facilitate the discharge of the cooled gas and slightly pressurize the discharged gas.

[0022] In this embodiment, preferably, a rectangular hole communicating with the interior of the air outlet frame 204 is opened on the upper surface of the heat dissipation box 100, and a plurality of suction fans 206 are arranged in the rectangular hole. A driving motor 211 for driving the suction fan 206 to rotate is arranged at the bottom of the suction fan 206, so as to conveniently suck the outside air into the air outlet frame 204, and the air is discharged through the fiber ice curtain 205.

[0023] In this embodiment, preferably, a water delivery component 207 is provided between the inner surface of the water tank 201 and the fiber ice curtain 205. The water delivery component 207 is used to evenly deliver the cooled water in the water tank 201 to the fiber ice curtain 205. The water delivery component 207 includes a water delivery pump 2071 installed on the inner side of the water tank 201. The water outlet of the water delivery pump 2071 is connected to a water delivery pipe 2072 that passes through the top of the heat dissipation box 100. A water valve 2074 is provided on the water delivery pipe 2072. The free end of the water delivery pipe 2072 is connected to a longitudinal water pipe 2073 installed on the upper side of the air outlet frame 204. The inner side of the longitudinal water pipe 2073 is connected to the fiber ice curtain 205, so as to evenly deliver water to the fiber ice curtain 205.

[0024] In summary, when in use, rainwater or supplementary water is stored in the water tank 201, and the refrigeration component 203 is used to cool the water in the water tank 201. The water pump 2071 sucks the cooled water in the water tank 201 into the water pipe 2072 and into the longitudinal water pipe 2073, and the cooled water is sent to the fiber ice curtain 205. At the same time, the driving motor 211 drives the suction fan 206 to rotate, sucks the outside air into the air outlet frame 204, and passes through the fiber ice curtain 205. The air passing through After being cooled, it becomes low-temperature air and is discharged from a number of ventilation holes 208. During the discharge process, the low-temperature air is slightly pressurized to facilitate the rapid discharge of the low-temperature air, and the discharge speed and flow range become larger, which can fully dissipate heat and cool the power equipment located on both sides of the air outlet frame 204, and finally be discharged from the side ventilation duct 101, and the power equipment is cooled from the middle to both sides, which can increase the heat dissipation area of ​​the power equipment, and the pressurized wind can quickly circulate through the power equipment, thereby increasing the air circulation rate and increasing the heat dissipation effect on the power equipment.

[0025] Embodiment 2 Reference Figure 5 and Figure 6 , which is the second embodiment of the present invention.

[0026] In this embodiment, preferably, the refrigeration component 203 includes a protective shell 2033 installed on the inner wall of the water storage tank 201. The refrigeration component 203 can be used to cool the water stored in the water storage tank 201, maintain the low temperature of the fiber ice curtain 205, and facilitate cooling the air. The protective shell 2033 can surround and protect the refrigeration plate 2032 to prevent water from directly contacting the refrigeration plate 2032. The refrigeration plate 2032 is arranged inside the protective shell 2033, and the battery box 2033 is arranged on the top of the protective shell 2033. 31. A connecting line 2034 is provided between the battery box 2031 and the cooling plate 2032. A plurality of metal rods 2035 are provided between the inner surface of the protective shell 2033 and the cooling plate 2032. The low temperature generated by the cooling plate 2032 is transmitted to the protective shell 2033 through the metal rods 2035. The protective shell 2033 is a metal shell, which can quickly transmit the low temperature to the water in the water tank 201, cool the water in the water tank 201, and the cooled water improves the subsequent cooling effect on the air.

[0027] In this embodiment, preferably, the ventilation hole 208 includes an air expansion section 2081 and a pressurizing section 2082. The ventilation hole 208 can be used to pressurize the discharged low-temperature air to a certain extent. The air expansion section 2081 is respectively located on the inner and outer sides of the air outlet frame 204, and the pressurizing section 2082 is located between the two air expansion sections 2081. The diameter of the pressurizing section 2082 is smaller than that of the air expansion section 2081. The inner air expansion section 2081 can facilitate the large-volume entry of air inside the air outlet frame 204, and the large-volume air will be squeezed after passing through the pressurizing section 2082. The speed of the squeezed air rushing to the outside is increased, and the outer air expansion section 2081 allows the squeezed air to expand and guide, which is convenient for heat dissipation and cooling of the electrical equipment outside the air outlet frame 204.

[0028] Embodiment 3 Reference Figure 7 and Figure 8 , which is the third embodiment of the present invention.

[0029] In the present embodiment, preferably, dehumidification components 300 are provided on both sides of the air outlet frame 204. By providing the dehumidification components 300, when the dehumidification components 300 are unfolded, the discharged cooling air can be adsorbed and dried to reduce the humidity of the heat dissipation box 100 and keep the power equipment in a suitable humidity environment. When the dehumidification components 300 are folded, the low-temperature air can carry some mist when discharged, so that the heat dissipation box 100 maintains a suitable humidity and reduces the static electricity level of the power equipment. The dehumidification component 300 includes a lateral screw rod 301 located on the outer side of the upper and lower ends of the air outlet frame 204. The dehumidification component 300 also includes a plurality of dehumidification plates 304 rotatably connected to each other. The dehumidification plates 304 are rotatably connected to each other by hinges. The plurality of dehumidification plates 304 form a dehumidification folding plate, and a plurality of small holes are opened on both sides of the dehumidification plate 304. The dehumidification plate 304 is a hollow structure. The dehumidification plate 304 is filled with adsorption material, and the adsorption material can be a silica gel ball that adsorbs water vapor.

[0030] In this embodiment, preferably, the front and rear ends of the dehumidification folding plate are respectively connected to a front baffle 303 and a rear baffle 309, and no small holes are provided on the surfaces of the front baffle 303 and the rear baffle 309, so that after the dehumidification folding plate is folded, the small holes exposed on the dehumidification folding plate are conveniently covered to prevent air from entering the dehumidification plate 304. A micro motor 302 installed on the inner wall of the heat dissipation box 100 is provided at the rear end of the lateral screw rod 301, and a humidity sensor for monitoring the internal humidity is provided on the inner surface of the heat dissipation box 100.

[0031] In this embodiment, preferably, a fixed block 306 is provided on the front surface of the front baffle 303, a nut block 305 is screwed on the lateral screw rod 301, a fixed protrusion 307 is provided on the side of the nut block 305, the fixed protrusion 307 is rotatably connected with the fixed block 306 via a rotating shaft 308, a waist-shaped hole is provided on the surface of the fixed protrusion 307 for the movement of the rotating shaft 308, the fixed protrusion 307 is rotatably connected with the fixed block 306, and it is convenient to adapt to the movement of the nut block 305 and the rotation of the front baffle 303.

[0032] In this embodiment, preferably, a protective cover 2011 located above the suction fan 206 is provided on the inner side of the water tank 201, and a support plate is provided between the protective cover 2011 and the inner wall of the water tank 201. The lower end of the protective cover 2011 extends to above the water outlet chamber of the water tank 201 to facilitate the collection of rainwater falling on the protective cover 2011. A space for air circulation is left between the protective cover 2011 and the water tank 201. The protective cover 2011 can be used to shield and protect the suction fan 206 and the drive motor 211 to prevent rainwater from directly entering the heat dissipation box 100. At the same time, the protective cover 2011 has a conical structure, and rainwater on its surface will directly flow into the water tank 201.

[0033] In this embodiment, preferably, a filter screen 210 is provided on the top of the heat dissipation box 100 and is located above the suction fan 206 , so as to filter the air entering the air outlet frame 204 .

[0034] In summary, when the space where the power equipment is located is relatively dry and has low humidity, static electricity is easily generated. At this time, the dehumidification folding plate is in a folded state, and the front baffle 303 and the rear baffle 309 block the front and rear surfaces of the dehumidification folding plate in the folded state. The cooled air passes through the fiber ice curtain 205 and is discharged outward. The discharged air carries water mist. The low-temperature air can not only cool down and dissipate heat for the power equipment, but also increase the humidity of the environment where the power equipment is located. When the humidity of the power equipment is sufficient, the micro motor 302 can be operated to drive the lateral screw rod 301 to rotate, and the nut block 305 rotates with it. The nut block 305 drives the front baffle plate 303 to move forward. The movement of the front baffle plate 303 drives the dehumidification folding plate to gradually unfold until it is fully unfolded and located on the side of the air outlet frame 204. The micro motor 302 stops working, and the low-temperature air discharged will first pass through the dehumidification folding plate. The mist mixed in the air is absorbed by the material inside the dehumidification folding plate, so that the low-temperature air is not mixed with more water mist when it acts on the power equipment, and the humidity inside the heat dissipation box 100 will not continue to increase. During the whole process, the humidity inside the heat dissipation box 100 is maintained, and the heat dissipation and cooling of the power equipment can be achieved.

[0035] Embodiment 4 This embodiment is obtained by combining the first embodiment, the second embodiment and the third embodiment.

[0036] When in use, the water tank 201 stores enough water, and the refrigeration component 203 is used to cool the water in the water tank 201. The cooled water is transported to the fiber ice curtain 205 through the water supply component 207. The suction fan 206 sucks the air into the air outlet frame 204 and discharges it outward. It is selected whether to use the dehumidification component 300 to dry and adsorb the discharged gas to maintain the humidity inside the heat dissipation box 100 and increase the heat dissipation effect on the electrical equipment inside the heat dissipation box 100.

[0037] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. An auxiliary heat dissipation device for electric power equipment, characterized in that: include: A heat dissipation box (100), wherein a lateral ventilation passage (101) is provided on a side surface of the heat dissipation box (100); An auxiliary heat dissipation structure (200) installed inside the heat dissipation box (100) for dissipating heat from the electric equipment; The auxiliary heat dissipation structure (200) comprises an air outlet frame (204) for dividing the internal space of the heat dissipation box (100) into two cavities for installing power equipment, a fiber ice curtain (205) attached to the inner wall of the air outlet frame (204), a water storage tank (201) installed on the top of the heat dissipation box (100) for storing outdoor rainwater, a suction fan (206) for sucking air, and a refrigeration component (203) for cooling water stored in the water storage tank (201); A plurality of ventilation holes (208) are evenly arranged on the side of the air outlet frame (204).

2. The auxiliary heat dissipation device for electric power equipment according to claim 1, characterized in that: The upper surface of the heat dissipation box (100) is provided with a rectangular hole which is in communication with the interior of the air outlet frame (204); a plurality of suction fans (206) are arranged in the rectangular hole; and a driving motor (211) for driving the suction fans (206) to rotate is arranged at the bottom of the suction fans (206).

3. The auxiliary heat dissipation device for electric power equipment according to claim 1, characterized in that: A water supply component (207) is provided between the inner surface of the water storage tank (201) and the fiber ice curtain (205); the water supply component (207) comprises a water supply pump (2071) installed inside the water storage tank (201); a water outlet of the water supply pump (2071) is connected to a water supply pipe (2072) that passes through the top of the heat dissipation box (100); a free end of the water supply pipe (2072) is connected to a longitudinal water pipe (2073) installed on the side surface of the upper end of the air outlet frame (204); and an inner side surface of the longitudinal water pipe (2073) is connected to the fiber ice curtain (205).

4. The auxiliary heat dissipation device for electric power equipment according to claim 1, characterized in that: The refrigeration component (203) comprises a protective shell (2033) installed on the inner wall of the water storage tank (201); a refrigeration plate (2032) is arranged inside the protective shell (2033); a battery box (2031) is arranged on the top of the protective shell (2033); a connecting line (2034) is arranged between the battery box (2031) and the refrigeration plate (2032); and a plurality of metal rods (2035) are arranged between the inner surface of the protective shell (2033) and the refrigeration plate (2032).

5. The auxiliary heat dissipation device for electric power equipment according to claim 1, characterized in that: The ventilation hole (208) comprises an air expansion section (2081) and a pressurizing section (2082), the air expansion section (2081) being located at the inner side and the outer side of the air outlet frame (204) respectively, and the pressurizing section (2082) being located between the two air expansion sections (2081).

6. The auxiliary heat dissipation device for electric power equipment according to claim 1, characterized in that: Dehumidification components (300) are arranged on both sides of the air outlet frame (204), and the dehumidification components (300) include lateral screw rods (301) located outside the upper and lower ends of the air outlet frame (204). The dehumidification components (300) also include a plurality of dehumidification plates (304) rotatably connected to each other, and the plurality of dehumidification plates (304) form a dehumidification folding plate, and a plurality of small holes are provided on both sides of the dehumidification plates (304). The dehumidification plates (304) are hollow structures, and the interior of the dehumidification plates (304) is filled with adsorption material.

7. The auxiliary heat dissipation device for electric power equipment according to claim 6, characterized in that: The front and rear ends of the dehumidification folding plate are respectively connected to a front baffle (303) and a rear baffle (309), and the rear end of the lateral screw rod (301) is provided with a micro motor (302) mounted on the inner wall of the heat dissipation box body (100).

8. The auxiliary heat dissipation device for electric power equipment according to claim 7, characterized in that: A fixed clamping block (306) is provided on the front surface of the front baffle (303); a nut block (305) is screwed onto the lateral screw rod (301); a fixed protrusion (307) is provided on the side of the nut block (305); and the fixed protrusion (307) is rotatably connected to the fixed clamping block (306) via a rotating shaft (308).

9. The auxiliary heat dissipation device for electric power equipment according to claim 1, characterized in that: The inner side of the water storage tank (201) is provided with a protective cover (2011) located above the suction fan (206), a support plate is provided between the protective cover (2011) and the inner wall of the water storage tank (201), and a space for air circulation is left between the protective cover (2011) and the water storage tank (201).

10. The auxiliary heat dissipation device for electric power equipment according to claim 1, characterized in that: A filter screen (210) located above the suction fan (206) is arranged on the top of the heat dissipation box (100).

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