Photovoltaic box transformer substation with heat dissipation function

Abstract

The utility model discloses a photovoltaic box transformer substation with a heat dissipation function, which comprises a transformer substation body and a rapid heat dissipation mechanism arranged at the bottom of the transformer substation body, the transformer substation body comprises a box body, and the bottom of the box body is provided with openings at equal intervals; and the top of the heat dissipation base is fixedly connected with the bottom of the box body, a plurality of second heat dissipation holes are formed in the top of the heat dissipation base at equal intervals, a plurality of flow dividing pipes are fixedly connected into the second heat dissipation holes, and a plurality of spray heads are fixedly connected to the tops of the flow dividing pipes. The equipment has the advantage of rapid heat dissipation, and solves the problems that part of photovoltaic box transformers only depend on heat dissipation holes for heat dissipation, natural convection heat dissipation depends on air flow caused by temperature difference, the heat dissipation speed is low, the heat dissipation effect is greatly reduced especially in a high-temperature or closed space, the temperature in the box body possibly rises rapidly, and the heat dissipation efficiency is low. And a large amount of generated heat cannot be effectively taken away.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic box transformers, in particular to a photovoltaic box transformer with a heat dissipation function. Background Art

[0002] The full name of photovoltaic box transformer is photovoltaic combined transformer or photovoltaic box substation. It is one of the most important equipment in solar photovoltaic power generation system. It is mainly used to convert the direct current generated by solar panels into alternating current suitable for connection to the public power grid or directly used by the load.

[0003] Some photovoltaic box transformers only rely on heat dissipation holes for heat dissipation. Natural convection heat dissipation depends on the air flow caused by temperature difference. This method has a slow heat dissipation speed, especially in high temperature or closed spaces. The heat dissipation effect will be greatly reduced, which may cause the temperature inside the box to rise rapidly and fail to effectively take away the large amount of heat generated. Utility Model Content

[0004] The purpose of the utility model is to provide a photovoltaic box transformer with a heat dissipation function, which has the advantage of rapid heat dissipation and solves the problem that some photovoltaic box transformers only rely on heat dissipation holes for heat dissipation. Natural convection heat dissipation depends on the air flow caused by temperature difference, which has a slow heat dissipation speed. Especially in high temperature or closed space, the heat dissipation effect will be greatly reduced, which may cause the temperature in the box to rise rapidly and fail to effectively take away the large amount of heat generated.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a photovoltaic box transformer with heat dissipation function, comprising a transformer substation body and a rapid heat dissipation mechanism arranged at the bottom thereof, wherein the transformer substation body comprises a box body, and the bottom of the box body is provided with openings at equal intervals:

[0006] The rapid heat dissipation mechanism includes a heat dissipation base, the top of the heat dissipation base is fixedly connected to the bottom of the box body, a plurality of second heat dissipation holes are equidistantly opened on the top of the heat dissipation base, a plurality of shunt pipes are fixedly connected inside the second heat dissipation holes, a plurality of nozzles are fixedly connected to the top of the shunt pipe, a same connecting pipe is fixedly connected to the bottom of the plurality of shunt pipes, one end of the connecting pipe extends to the outside of the heat dissipation base and is fixedly connected to a cooling box, and the bottom of the cooling box is fixedly connected to the top of the heat dissipation base.

[0007] As a preferred photovoltaic box transformer with heat dissipation function of the utility model, a plurality of first heat dissipation holes are correspondingly opened on the left and right sides of the box body, and a box door is movably connected to the front side of the box body.

[0008] As a preferred photovoltaic box with heat dissipation function of the utility model, the top and bottom of one side of the cooling box are respectively fixedly connected with an injection pipe and a liquid outlet pipe, one end of the injection pipe is fixedly connected to the output end of an external refrigeration device, and one end of the liquid outlet pipe is fixedly connected to the input end of the external refrigeration device.

[0009] As a preferred photovoltaic box with heat dissipation function of the utility model, a condenser is fixedly connected to the inside of the cooling box, one end of the condenser extends to the outside of the cooling box and is fixedly connected to a connecting pipe, and the other end of the condenser is fixedly connected to an exhaust pipe.

[0010] As a preferred photovoltaic box with heat dissipation function of the utility model, one end of the exhaust pipe extends to the outside of the cooling box and is fixedly connected to an air pump, the bottom of the air pump is fixedly connected to the top of the cooling box, the air pump suction end is fixedly connected to an exhaust pipe, and the top of the exhaust pipe is fixedly connected to a filter box.

[0011] As a preferred photovoltaic box with heat dissipation function of the utility model, an air inlet pipe is fixedly connected to the top of one side of the filter box, and a first filter plate, a second filter plate and a third filter plate are slidably connected inside the filter box. The tops of the first filter plate, the second filter plate and the third filter plate extend to the top of the filter box and are fixedly connected with a handle.

[0012] As a preferred photovoltaic box with heat dissipation function of the utility model, slide rails are fixedly connected to the front and rear sides of the inner wall of the filter box, and the slide rails are slidably connected to the first filter plate, the second filter plate and the third filter plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The openings equidistantly opened at the bottom of the box of the utility model, in conjunction with the installed heat dissipation base, can utilize the principle of air convection to introduce cold air from the bottom of the box, and exhaust hot air at the same time, thereby forming an effective natural ventilation channel, which helps to reduce the temperature of the electrical equipment in the box. The second heat dissipation holes equidistantly opened at the top of the heat dissipation base further enhance the heat dissipation area, so that the heat can be transferred to the external environment faster. At the same time, the heat can be evenly dispersed through the multiple second heat dissipation holes to prevent local overheating. Through the shunt pipe and the multiple nozzles on the top, such a design simulates the working principle of the heat exchanger, and increases the heat exchange efficiency between the cooling medium and the heat source by expanding the contact area, thereby accelerating the heat dissipation process. The cooling box can be filled with coolant or other cooling media, which is connected to the shunt pipe through a connecting pipe to form a closed circulation system. When the heat generated by the equipment in the box is transferred to the cooling box, the cooling medium absorbs the heat and is cooled through the circulation system, and then returns to continue absorbing heat, achieving continuous and efficient heat dissipation. This equipment makes full use of various heat dissipation mechanisms such as heat conduction and convection heat transfer, which can not only ensure that the internal components of the photovoltaic box transformer maintain a low temperature with high working efficiency, but also can resist the high temperature challenges in harsh environments to a certain extent, thereby improving the stability and service life of the entire photovoltaic system.

[0015] 2. The air pump of the utility model is connected to an air suction pipe at the air suction end, and the top of the air suction pipe is fixedly connected to the filter box. The function of this link is to filter out impurities, moisture or other harmful substances that may be contained in the gas before the gas enters the cooling box, thereby protecting the long-term stable operation of the air pump and the entire system, and preventing pollution to the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 This is a rear view of the utility model;

[0018] Figure 3 It is a cross-sectional view of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the utility model substation body;

[0020] Figure 5 It is a cross-sectional view of the rapid heat dissipation mechanism of the utility model;

[0021] Figure 6 It is a cross-sectional view of the filter box of the utility model.

[0022] In the figure: 1. Substation body; 101. Box body; 102. Opening; 103. First heat dissipation hole; 104. Box door; 2. Rapid heat dissipation mechanism; 201. Heat dissipation base; 202. Second heat dissipation hole; 203. Diverter pipe; 204. Nozzle; 205. Connecting pipe; 206. Cooling box; 207. Liquid injection pipe; 208. Liquid outlet pipe; 209. Condenser; 210. Exhaust pipe; 211. Air pump; 212. Exhaust pipe; 213. Filter box; 214. Inlet pipe; 215. Slide rail; 216. First filter plate; 217. Second filter plate; 218. Third filter plate; 219. Handle. DETAILED DESCRIPTION

[0023] See also Figure 1-Figure 6 A photovoltaic box transformer with heat dissipation function includes a transformer substation body 1 and a rapid heat dissipation mechanism 2 arranged at the bottom thereof. The transformer substation body 1 includes a box body 101, and openings 102 are equidistantly opened at the bottom of the box body 101:

[0024] Furthermore, the rapid heat dissipation mechanism 2 includes a heat dissipation base 201, the top of the heat dissipation base 201 is fixedly connected to the bottom of the box body 101, a plurality of second heat dissipation holes 202 are equidistantly provided on the top of the heat dissipation base 201, a plurality of shunt pipes 203 are fixedly connected inside the second heat dissipation holes 202, a plurality of nozzles 204 are fixedly connected to the top of the shunt pipes 203, a same connecting pipe 205 is fixedly connected to the bottom of the plurality of shunt pipes 203, one end of the connecting pipe 205 extends to the outside of the heat dissipation base 201 and is fixedly connected to a cooling box 206, and the bottom of the cooling box 206 is fixedly connected to the top of the heat dissipation base 201.

[0025] The openings 102 equidistantly opened at the bottom of the box 101, in conjunction with the installed heat dissipation base 201, can utilize the principle of air convection to introduce cold air from the bottom of the box 101, while exhausting hot air, thereby forming an effective natural ventilation channel, which helps to reduce the temperature of the electrical equipment in the box 101. The second heat dissipation holes 202 equidistantly opened at the top of the heat dissipation base 201 further enhance the heat dissipation area, so that heat can be transferred to the external environment more quickly. At the same time, through multiple second heat dissipation holes 202, heat can be evenly dispersed to prevent local overheating. Through the provision of the shunt pipe 203 and the multiple nozzles 204 on the top, such a design simulates the working principle of the heat exchanger, and increases the heat exchange efficiency between the cooling medium and the heat source by expanding the contact area, thereby accelerating the heat dissipation process. The cooling box 206 can be filled with coolant or other cooling media, which is connected to the shunt pipe 203 through the connecting pipe 205 to form a closed circulation system. When the heat generated by the equipment in the box 101 is transferred to the cooling box 206, the cooling medium absorbs the heat and is cooled through the circulation system, and then returns to continue to absorb heat, thereby achieving a continuous and efficient heat dissipation effect. This device makes full use of various heat dissipation mechanisms such as heat conduction and convection heat transfer, which can not only ensure that the internal components of the photovoltaic box transformer maintain a low temperature at a high working efficiency, but also can resist the high temperature challenges in harsh environments to a certain extent, thereby improving the stability and service life of the entire photovoltaic system.

[0026] Furthermore, a plurality of first heat dissipation holes 103 are correspondingly opened on the left and right sides of the box body 101 , and a box door 104 is movably connected to the front side of the box body 101 .

[0027] The first heat dissipation holes 103 on the left and right sides of the box 101 are conducive to forming an air convection channel running through the front and back directions of the box 101. When external cold air enters the box 101 from the side and absorbs the heat generated by the internal electrical components, the hot air can be discharged from the opening 102 on the other side or bottom of the box 101, forming good natural convection heat dissipation and improving the heat dissipation efficiency. The design of the box door 104 movably connected on the front side of the box 101 is convenient for daily maintenance and inspection, and the degree of opening can be adjusted according to actual conditions, so as to flexibly control the heat exchange rate between the inside of the box 101 and the external environment, further optimize the heat dissipation effect, and also facilitate the staff to observe and adjust the operating conditions in the box at any time.

[0028] Furthermore, a liquid injection pipe 207 and a liquid outlet pipe 208 are fixedly connected to the top and bottom of one side of the cooling box 206, respectively. One end of the liquid injection pipe 207 is fixedly connected to the output end of the external refrigeration device, and one end of the liquid outlet pipe 208 is fixedly connected to the input end of the external refrigeration device.

[0029] A liquid injection pipe 207 is provided at the top of one side of the cooling box 206 for injecting low-temperature coolant cooled by the refrigeration equipment; a liquid outlet pipe 208 is provided at the bottom for discharging the coolant heated by absorbing the internal heat of the box 101. In this way, a closed liquid cooling loop is formed, and the coolant continuously circulates between the cooling box 206 and the external refrigeration equipment, continuously absorbing heat and cooling, and effectively reducing the internal temperature of the photovoltaic box transformer.

[0030] Furthermore, a condenser 209 is fixedly connected to the interior of the cooling box 206 , one end of the condenser 209 extends to the outside of the cooling box 206 and is fixedly connected to the connecting pipe 205 , and the other end of the condenser 209 is fixedly connected to the exhaust pipe 210 .

[0031] The condenser 209 fixed inside the cooling box 206 is a means of enhancing heat transfer. It can more efficiently transfer the heat generated by the equipment in the box 101 through the condensing medium. The condenser 209 is connected to the external refrigeration equipment. The cooling water or other cooling media may circulate inside. They absorb heat when flowing through the high-temperature area and become high-temperature fluids. They are then discharged to the external refrigeration equipment through the connecting pipe 205 for cooling, and then return to the cooling box 206. This cycle is repeated to achieve efficient heat dissipation.

[0032] Furthermore, one end of the exhaust pipe 210 extends to the outside of the cooling box 206 and is fixedly connected to an air pump 211. The bottom of the air pump 211 is fixedly connected to the top of the cooling box 206. The suction end of the air pump 211 is fixedly connected to an exhaust pipe 212. The top of the exhaust pipe 212 is fixedly connected to a filter box 213.

[0033] The air pump 211 is connected to the air suction end with an air suction pipe 212, and the top of the air suction pipe 212 is fixedly connected to the filter box 213. The function of this link is to filter out impurities, moisture or other harmful substances that may be contained in the gas before the gas enters the cooling box 206, thereby protecting the long-term stable operation of the air pump 211 and the entire system, and preventing pollution of the surrounding environment.

[0034] Furthermore, an air inlet pipe 214 is fixedly connected to the top of one side of the filter box 213, and a first filter plate 216, a second filter plate 217 and a third filter plate 218 are slidably connected inside the filter box 213. The tops of the first filter plate 216, the second filter plate 217 and the third filter plate 218 extend above the filter box 213 and are fixedly connected to a handle 219.

[0035] The filter box 213 is internally slidably connected with a first filter plate 216, a second filter plate 217 and a third filter plate 218, which means that the system is provided with a three-stage filtration system. Each stage of the filter plate intercepts and adsorbs impurities of different particle sizes or types, thereby achieving fine and efficient air purification. Different filter plates may filter different pollutants such as dust, water vapor, oil mist, etc., to fully ensure the quality of the cooling gas. The handle 219 greatly facilitates the operation and maintenance personnel to conduct regular inspection and replacement of the filter plates, and can be directly operated without disassembling the filter box 213, thereby improving work efficiency and safety.

[0036] Furthermore, slide rails 215 are fixedly connected to the front and rear sides of the inner wall of the filter box 213 , and the slide rails 215 are slidably connected to the first filter plate 216 , the second filter plate 217 and the third filter plate 218 .

[0037] With the aid of the slide rail 215 , the operation of replacing or cleaning the filter plate becomes easier and more convenient. The filter plate can be taken out or put back in place by simply pushing or pulling it gently along the slide rail 215 , which greatly reduces maintenance time and labor intensity.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A photovoltaic box transformer with heat dissipation function, comprising a transformer substation body (1) and a rapid heat dissipation mechanism (2) arranged at the bottom thereof, wherein the transformer substation body (1) comprises a box body (101), and the bottom of the box body (101) is provided with openings (102) at equal intervals, and is characterized in that: The rapid heat dissipation mechanism (2) comprises a heat dissipation base (201), the top of the heat dissipation base (201) is fixedly connected to the bottom of the box body (101), the top of the heat dissipation base (201) is equidistantly provided with a plurality of second heat dissipation holes (202), the inside of the second heat dissipation holes (202) is fixedly connected with a plurality of shunt pipes (203), the top of the shunt pipe (203) is fixedly connected with a plurality of nozzles (204), the bottoms of the plurality of shunt pipes (203) are fixedly connected with the same connecting pipe (205), one end of the connecting pipe (205) extends to the outside of the heat dissipation base (201) and is fixedly connected to a cooling box (206), the bottom of the cooling box (206) is fixedly connected to the top of the heat dissipation base (201).

2. The photovoltaic box transformer with heat dissipation function according to claim 1 is characterized by: A plurality of first heat dissipation holes (103) are correspondingly provided on the left and right sides of the box body (101), and a box door (104) is movably connected to the front side of the box body (101).

3. The photovoltaic box transformer with heat dissipation function according to claim 1 is characterized by: A liquid injection pipe (207) and a liquid outlet pipe (208) are respectively fixedly connected to the top and bottom of one side of the cooling box (206); one end of the liquid injection pipe (207) is fixedly connected to the output end of an external refrigeration device, and one end of the liquid outlet pipe (208) is fixedly connected to the input end of the external refrigeration device.

4. The photovoltaic box transformer with heat dissipation function according to claim 3 is characterized by: A condenser (209) is fixedly connected to the interior of the cooling box (206), one end of the condenser (209) extends to the outside of the cooling box (206) and is fixedly connected to a connecting pipe (205), and the other end of the condenser (209) is fixedly connected to an exhaust pipe (210).

5. The photovoltaic box transformer with heat dissipation function according to claim 4 is characterized by: One end of the exhaust pipe (210) extends to the outside of the cooling box (206) and is fixedly connected to an air pump (211); the bottom of the air pump (211) is fixedly connected to the top of the cooling box (206); the air extraction end of the air pump (211) is fixedly connected to an air extraction pipe (212); and the top of the air extraction pipe (212) is fixedly connected to a filter box (213).

6. The photovoltaic box transformer with heat dissipation function according to claim 5 is characterized by: An air inlet pipe (214) is fixedly connected to the top of one side of the filter box (213); a first filter plate (216), a second filter plate (217) and a third filter plate (218) are slidably connected inside the filter box (213); the tops of the first filter plate (216), the second filter plate (217) and the third filter plate (218) extend above the filter box (213) and are fixedly connected to a handle (219).

7. The photovoltaic box transformer with heat dissipation function according to claim 6 is characterized by: Slide rails (215) are fixedly connected to the front and rear sides of the inner wall of the filter box (213), and the slide rails (215) are slidably connected to the first filter plate (216), the second filter plate (217) and the third filter plate (218).

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