Heat dissipation device of ring main unit

Abstract

The utility model relates to the field of ring main units, and discloses a heat dissipation device of a ring main unit, which comprises a cabinet body, a refrigeration box is arranged at the center of one side wall of the cabinet body, box doors are rotatably connected to the centers of the front end surfaces of the cabinet body and the refrigeration box, a partition plate is arranged at the center in the refrigeration box, and a refrigeration structure is arranged in the refrigeration box. A heat dissipation structure is arranged in the center of the upper end face of the cabinet body, and a cold conveying structure is arranged between the cabinet body and the refrigeration box. According to the utility model, the temperature in the refrigeration box is reduced through the refrigeration structure, cold air is conveyed to the cabinet body through the cold conveying structure to realize heat dissipation, and meanwhile, hot air in the cabinet body is discharged through cooperation with a second fan in the heat dissipation structure, so that compared with a traditional single heat dissipation method, the heat dissipation device is more efficient and stable; the air is sequentially subjected to peculiar smell adsorption, dust particle adsorption and fine impurity filtration, and it is ensured that cold air conveyed into the cabinet body is clean.

Description

Technical Field

[0001] The utility model relates to the field of ring network cabinets, in particular to a heat dissipation device of a ring network cabinet. Background Art

[0002] Ring main unit (RMU) is a type of power distribution equipment widely used in power systems. It is mainly used in distribution stations and box-type substations in urban residential areas, high-rise buildings, large public buildings, and factories and enterprises. Its core components usually include load switches and fuses, and it has the advantages of simple structure, small size, and low cost.

[0003] Traditional heat dissipation usually relies solely on natural ventilation or simple heat dissipation holes. The air circulation speed is slow and the heat is not dissipated in time, which easily leads to a continuous increase in the temperature inside the ring network cabinet. When the ambient temperature is high, the air circulation is poor or there is a lot of dust, the heat dissipation effect will be greatly reduced. Therefore, technical personnel in this field provide a heat dissipation device for a ring network cabinet to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art, and a heat dissipation device of a ring network cabinet is proposed. The temperature in the refrigeration box is reduced by a refrigeration structure, and the cold air is then transported to the cabinet body by a cold delivery structure to achieve heat dissipation, and the hot air inside the cabinet is discharged in conjunction with the second fan in the heat dissipation structure. This comprehensive heat dissipation and refrigeration design is more efficient and stable than the traditional single heat dissipation method, and can better meet the heat dissipation needs of the ring network cabinet in different environments. Through activated carbon, adsorption cotton and filter membrane, in the process of transporting the cold air in the refrigeration box to the cabinet body, the air is successively adsorbed for odor, dust particles and fine impurities to ensure that the cold air transported to the cabinet body is clean. The cabinet body and the refrigeration box are made of aluminum alloy, which has the characteristics of light weight, high strength and good thermal conductivity. It is convenient to install and carry and helps to improve the heat dissipation efficiency. The protective shell is made of engineering plastic material with high strength, toughness and corrosion resistance, which can effectively protect the components in the heat dissipation structure and extend the service life of the device.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a heat dissipation device for a ring network cabinet, comprising a cabinet body, a refrigeration box provided at the center of one side wall of the cabinet body, a cabinet door rotatably connected to the center of the front end surface of the cabinet body and the refrigeration box, a partition provided at the center of the interior of the refrigeration box, a refrigeration structure provided inside the refrigeration box, a heat dissipation structure provided at the center of the upper end surface of the cabinet body, and a cold transmission structure provided between the cabinet body and the refrigeration box;

[0006] Through the above technical solution, the temperature inside the refrigeration box is lowered by the refrigeration structure, and then the cold air is transported to the cabinet body by the cold delivery structure to achieve heat dissipation. At the same time, the hot air inside the cabinet body is discharged in conjunction with the second fan in the heat dissipation structure. This comprehensive heat dissipation and refrigeration design is more efficient and stable than the traditional single heat dissipation method, and can better meet the heat dissipation needs of the ring network cabinet in different environments. Through activated carbon, adsorption cotton and filter membrane, in the process of transporting the cold air in the refrigeration box to the cabinet body, the air is successively adsorbed for odor, dust particles and fine impurities to ensure that the cold air transported to the cabinet body is clean. The cabinet body and refrigeration box are made of aluminum alloy, which has the characteristics of light weight, high strength and good thermal conductivity. It is easy to install and carry and helps to improve heat dissipation efficiency. The protective shell is made of engineering plastic material with high strength, toughness and corrosion resistance. It can effectively protect the components in the heat dissipation structure and extend the service life of the device.

[0007] Furthermore, the refrigeration structure includes a compressor, a condenser, a liquid reservoir, an evaporator, a circulating pump, two through holes and a first filter screen. A compressor is provided at the center of the upper end surface of the refrigeration box, the compressor output end is fixedly connected to the condenser, the condenser output end is provided with a liquid reservoir, the liquid reservoir output end is connected to the evaporator, the evaporator output end is provided with a circulating pump, the circulating pump is provided on the compressor input end, and the two through holes are provided at the upper and lower ends of the rear end of one side wall of the refrigeration box;

[0008] Through the above technical solution, in the refrigeration structure, after the compressor is started, the refrigerant is compressed into a high-temperature and high-pressure gas and output to the condenser. In the condenser, the high-temperature and high-pressure refrigerant exchanges heat with the outside air, is cooled into a high-pressure liquid, and then flows to the liquid reservoir. The liquid reservoir stores the refrigerant and stabilizes the pressure, and then transports the refrigerant to the evaporator. In the evaporator, the refrigerant absorbs the heat inside the refrigeration box, evaporates into a low-temperature and low-pressure gas, and is then sent back to the input end of the compressor by the circulation pump to complete a refrigeration cycle. The two through holes enable the refrigeration box to exchange a certain amount of air with the outside world to ensure the normal operation of the refrigeration system. When the refrigeration system is working, air can enter or discharge the refrigeration box through the through holes to maintain the air pressure balance and heat exchange efficiency in the box. The first filter can prevent external dust, impurities, etc. from entering the refrigeration box, protecting the various components of the refrigeration system from pollution.

[0009] Furthermore, the cold delivery structure includes a cold delivery pipe, a first fan, a lifting box, activated carbon, adsorption cotton and a filter membrane. The cold delivery pipe is arranged at the lower center of the cabinet and one side wall of the refrigeration box. The first fan is arranged at the center of the cold delivery pipe. The three lifting boxes are respectively arranged horizontally at the center of the cold delivery pipe. The activated carbon, adsorption cotton and filter membrane are respectively arranged horizontally at the center of the lifting box.

[0010] Through the above technical solution, when the ring network cabinet needs to dissipate heat, the refrigeration structure starts to work to lower the temperature inside the refrigeration box. At this time, the first fan in the cold delivery structure starts to generate airflow in the cold delivery pipe. Since the cold delivery pipe connects the cabinet and the refrigeration box, the airflow will suck the cold air in the refrigeration box into the cold delivery pipe. During the flow of cold air in the cold delivery pipe, it will pass through three extraction boxes in turn. The activated carbon in the extraction box will first play a role in absorbing odors and some harmful gases that may exist in the air. Then, the adsorption cotton absorbs dust and tiny particles in the air. Finally, the filter membrane further filters the fine impurities in the air to ensure that the cold air transported to the cabinet through the cold delivery pipe is clean.

[0011] Furthermore, the heat dissipation structure includes a protective shell, a heat exhaust port, a second filter, a second fan, and a plurality of exhaust ports, wherein the protective shell is arranged at the center of the upper end surface of the cabinet, the heat exhaust port is arranged on the upper end surface of the cabinet inside the protective shell, the second filter is arranged at the upper center of the heat exhaust port, the second fan is arranged at the lower center of the heat exhaust port, and the plurality of exhaust ports are respectively arranged in a rectangular shape at the center of the front and rear ends of the protective shell;

[0012] Through the above technical solution, when the temperature inside the ring network cabinet rises and needs to be dissipated, the heat dissipation structure starts to work. First, the second fan starts to generate an upward airflow. The hot air inside the ring network cabinet rises under the action of the second fan and is discharged through the heat exhaust port on the upper end face of the cabinet. In the process of the hot air passing through the heat exhaust port, the second filter will filter the hot air to prevent dust, impurities, etc. from being discharged with the hot air. The filtered hot air is finally discharged into the external environment through multiple exhaust ports.

[0013] Furthermore, the protective shell is made of engineering plastics;

[0014] Through the above technical solution, the engineering plastic has higher strength, toughness and corrosion resistance.

[0015] Furthermore, the cabinet and the refrigeration box are both made of aluminum alloy;

[0016] Through the above technical solutions, aluminum alloy has the characteristics of light weight, high strength and good thermal conductivity.

[0017] Furthermore, a first filter screen is provided at the center of each of the two through holes;

[0018] The above technical solution can block dust, impurities and the like in the air.

[0019] The utility model has the following beneficial effects:

[0020] In the present invention, the heat dissipation device of the ring network cabinet lowers the temperature inside the refrigeration box through the refrigeration structure, and then uses the cold delivery structure to transport the cold air to the cabinet to achieve heat dissipation. At the same time, the second fan in the heat dissipation structure is used to discharge the hot air inside the cabinet. This comprehensive heat dissipation and refrigeration design is more efficient and stable than the traditional single heat dissipation method, and can better meet the heat dissipation needs of the ring network cabinet in different environments.

[0021] In the utility model, activated carbon, adsorption cotton and filter membrane are used to sequentially adsorb odors, dust particles and fine impurities in the air during the process of delivering the cold air in the refrigeration box to the cabinet body, thereby ensuring that the cold air delivered to the cabinet body is clean.

[0022] In the present invention, the cabinet body and the refrigeration box are made of aluminum alloy, which has the characteristics of light weight, high strength, and good thermal conductivity. It is convenient to install and carry, and helps to improve the heat dissipation efficiency. The protective shell is made of engineering plastic material, which has high strength, toughness and corrosion resistance. It can effectively protect the components in the heat dissipation structure and extend the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional diagram of a heat dissipation device for a ring main unit proposed in the present invention;

[0024] Figure 2 This is a front cross-sectional view of a heat dissipation device for a ring main unit proposed in the present invention;

[0025] Figure 3 This is a three-dimensional cross-sectional view of a heat dissipation device of a ring main unit proposed in the present invention;

[0026] Figure 4 for Figure 2 Enlarged schematic diagram of point A in the middle.

[0027] Legend:

[0028] 1. Cabinet; 2. Door; 3. Refrigeration box; 4. Partition; 5. Refrigeration structure; 501. Compressor; 502. Condenser; 503. Liquid reservoir; 504. Evaporator; 505. Circulation pump; 506. Through hole; 507. First filter; 6. Cold supply structure; 601. Cold supply pipe; 602. First fan; 603. Lifting box; 604. Activated carbon; 605. Adsorption cotton; 606. Filter membrane; 7. Heat dissipation structure; 701. Protective shell; 702. Heat exhaust port; 703. Second filter; 704. Second fan; 705. Exhaust port. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0030] Reference Figure 1-4 The refrigeration system 3 of the embodiment of the present invention is a heat dissipation device for a ring network cabinet, comprising a cabinet 1, a refrigeration box 3 is provided at the center of one side wall of the cabinet 1, a box door 2 is rotatably connected to the cabinet 1 and the front end center of the refrigeration box 3, a partition 4 is provided in the center of the interior of the refrigeration box 3, a refrigeration structure 5 is provided inside the refrigeration box 3, and a heat dissipation structure 7 is provided in the center of the upper end surface of the cabinet 1. A cooling structure 6 is provided between the cabinet 1 and the refrigeration box 3. The cooling structure 5 in the refrigeration box 3 generates cold air, and the cold air accumulates in the refrigeration box 3 and is transmitted to the inside of the cabinet 1 through the cooling structure 6. The cooling structure 6 transmits the cold air, and transmits the cold air in the refrigeration box 3 to the cabinet 1, thereby reducing the temperature inside the cabinet 1, and the heat dissipation structure 7 dissipates heat. When the electrical equipment in the cabinet 1 generates heat, the heat dissipation structure 7 starts to work, and discharges the hot air in the cabinet 1 by forced convection, and also helps to maintain the air pressure balance in the cabinet 1. The cabinet 1 and the refrigeration box 3 are both made of aluminum alloy, which has the characteristics of light weight, high strength, and good thermal conductivity.

[0031] The refrigeration structure 5 includes a compressor 501, a condenser 502, a liquid reservoir 503, an evaporator 504, a circulation pump 505, two through holes 506 and a first filter 507. The compressor 501 is provided at the center of the upper end surface of the refrigeration box 3. The output end of the compressor 501 is fixedly connected to the condenser 502. The output end of the condenser 502 is provided with a liquid reservoir 503. The output end of the liquid reservoir 503 is connected to the evaporator 504. The output end of the evaporator 504 is provided with a circulation pump 505. The circulation pump 505 is arranged on the input end of the compressor 501. The two through holes 506 are arranged at the upper and lower parts of the rear end of one side wall of the refrigeration box 3. In the refrigeration structure 5, after the compressor 501 is started, the refrigerant is compressed into a high-temperature and high-pressure gas and output to the condenser 502. In the condenser 502, the high-temperature and high-pressure refrigerant exchanges heat with the outside air and is cooled into a high-pressure liquid. Then it flows to the liquid reservoir 503. After the liquid reservoir 503 stores the refrigerant and stabilizes the pressure, the refrigerant is transported to the evaporator 504. In the evaporator 504, the refrigerant absorbs the heat inside the refrigeration box 3 and evaporates into a low-temperature and low-pressure gas. It is then sent back to the input end of the compressor 501 by the circulation pump 505 to complete a refrigeration cycle. The two through holes 506 enable the refrigeration box 3 to exchange a certain amount of air with the outside world to ensure the normal operation of the refrigeration system. When the refrigeration system is working, air can enter or exit the refrigeration box 3 through the through holes 506 to maintain the air pressure balance and heat exchange efficiency in the box. The first filter 507 can prevent external dust, impurities, etc. from entering the refrigeration box 3, protecting the various components of the refrigeration system from pollution. The first filter 507 is provided at the center of the two through holes 506 to block dust, impurities, etc. in the air.

[0032] The cooling structure 6 includes a cooling pipe 601, a first fan 602, a lifting box 603, activated carbon 604, adsorption cotton 605 and a filter membrane 606. The cooling pipe 601 is arranged at the lower center of the side wall of the cabinet 1 and the refrigeration box 3. The first fan 602 is arranged at the center of the cooling pipe 601. The three lifting boxes 603 are arranged horizontally at the center of the cooling pipe 601. The activated carbon 604, adsorption cotton 605 and filter membrane 606 are arranged horizontally at the center of the lifting box 603. When the ring network cabinet needs to dissipate heat, the cooling structure 5 starts to work to reduce the temperature in the refrigeration box 3. At this time, the first fan 602 in the cooling structure 6 A fan 602 is started, generating airflow in the cooling pipe 601. Since the cooling pipe 601 connects the cabinet 1 and the refrigeration box 3, the airflow will suck the cold air in the refrigeration box 3 into the cooling pipe 601. When the cold air flows in the cooling pipe 601, it will pass through three extraction boxes 603 in sequence. The activated carbon 604 in the extraction boxes 603 first works to absorb odors and some harmful gases that may be present in the air. Then, the adsorption cotton 605 absorbs dust and tiny particles in the air. Finally, the filter membrane 606 further filters the fine impurities in the air to ensure that the cold air delivered to the cabinet 1 through the cooling pipe 601 is clean.

[0033] The heat dissipation structure 7 includes a protective shell 701, a heat exhaust port 702, a second filter 703, a second fan 704 and a plurality of exhaust ports 705. The protective shell 701 is arranged at the center of the upper end face of the cabinet 1, the heat exhaust port 702 is arranged on the upper end face of the cabinet 1 inside the protective shell 701, the second filter 703 is arranged at the upper center of the heat exhaust port 702, the second fan 704 is arranged at the lower center of the heat exhaust port 702, and the plurality of exhaust ports 705 are arranged in a rectangular shape at the center of the front and rear ends of the protective shell 701. When the temperature inside the ring network cabinet rises, During heat dissipation, the heat dissipation structure 7 starts to work. First, the second fan 704 starts to generate an upward airflow. The hot air inside the ring network cabinet rises under the action of the second fan 704 and is discharged through the heat exhaust port 702 on the upper end face of the cabinet body 1. In the process of the hot air passing through the heat exhaust port 702, the second filter 703 will filter the hot air to prevent dust, impurities, etc. from being discharged with the hot air. The filtered hot air is finally discharged into the external environment through multiple exhaust ports 705. The protective shell 701 is made of engineering plastic, which has high strength, toughness and corrosion resistance.

[0034] Working principle: In the refrigeration structure 5, after the compressor 501 is started, the refrigerant is compressed into a high-temperature and high-pressure gas and output to the condenser 502. In the condenser 502, the high-temperature and high-pressure refrigerant exchanges heat with the outside air, is cooled into a high-pressure liquid, and then flows to the liquid reservoir 503. The liquid reservoir 503 stores the refrigerant and stabilizes the pressure, and then transports the refrigerant to the evaporator 504. In the evaporator 504, the refrigerant absorbs the heat inside the refrigeration box 3, evaporates into a low-temperature and low-pressure gas, and is then sent back to the input end of the compressor 501 by the circulation pump 505 to complete a refrigeration cycle. The two through holes 506 enable the refrigeration box 3 to exchange a certain amount of air with the outside world to ensure the normal operation of the refrigeration system. When the refrigeration system is working, air can enter or discharge the refrigeration box 3 through the through holes 506 to maintain the air pressure balance and heat exchange efficiency in the box. The first filter 507 can prevent external dust, impurities, etc. from entering the refrigeration box 3, protecting the various components of the refrigeration system from pollution.

[0035] When the ring network cabinet needs to dissipate heat, the refrigeration structure 5 starts working to reduce the temperature in the refrigeration box 3. At this time, the first fan 602 in the cold delivery structure 6 starts, generating airflow in the cold delivery pipe 601. Since the cold delivery pipe 601 connects the cabinet 1 and the refrigeration box 3, the airflow will suck the cold air in the refrigeration box 3 into the cold delivery pipe 601. During the flow of the cold air in the cold delivery pipe 601, it will pass through three extraction boxes 603 in sequence. The activated carbon 604 in the extraction box 603 first works to absorb odors and some harmful gases that may exist in the air. Then, the adsorption cotton 605 absorbs dust and small particles in the air. Finally, the filter membrane 606 Further filter the fine impurities in the air to ensure that the cold air transported to the cabinet 1 through the cooling pipe 601 is clean. When the temperature inside the ring network cabinet rises and needs to be dissipated, the heat dissipation structure 7 starts to work. First, the second fan 704 is started to generate an upward airflow. The hot air inside the ring network cabinet rises under the action of the second fan 704 and is discharged through the heat exhaust port 702 on the upper end face of the cabinet 1. In the process of the hot air passing through the heat exhaust port 702, the second filter 703 will filter the hot air to prevent dust, impurities, etc. from being discharged with the hot air. The filtered hot air is finally discharged into the external environment through multiple exhaust ports 705.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A heat dissipation device for a ring network cabinet, comprising a cabinet body (1), characterized in that: A refrigeration box (3) is provided at the center of one side wall of the cabinet (1), a box door (2) is rotatably connected at the center of the front end faces of the cabinet (1) and the refrigeration box (3), a partition (4) is provided at the center inside the refrigeration box (3), a refrigeration structure (5) is provided inside the refrigeration box (3), a heat dissipation structure (7) is provided at the center of the upper end face of the cabinet (1), and a cooling structure (6) is provided between the cabinet (1) and the refrigeration box (3).

2. The heat dissipation device of a ring main unit according to claim 1, characterized in that: The refrigeration structure (5) comprises a compressor (501), a condenser (502), a liquid reservoir (503), an evaporator (504), a circulation pump (505), two through holes (506) and a first filter (507). The compressor (501) is provided at the center of the upper end surface of the refrigeration box (3). The output end of the compressor (501) is fixedly connected to the condenser (502). The output end of the condenser (502) is provided with a liquid reservoir (503). The output end of the liquid reservoir (503) is connected to the evaporator (504). The output end of the evaporator (504) is provided with a circulation pump (505). The circulation pump (505) is provided on the input end of the compressor (501). The two through holes (506) are provided at the upper and lower ends of the rear end of one side wall of the refrigeration box (3).

3. The heat dissipation device of a ring main unit according to claim 1, characterized in that: The cold delivery structure (6) includes a cold delivery pipe (601), a first fan (602), a lifting box (603), activated carbon (604), adsorption cotton (605) and a filter membrane (606). The cold delivery pipe (601) is arranged at the lower center of a side wall of the cabinet (1) and the refrigeration box (3). The first fan (602) is arranged at the center inside the cold delivery pipe (601). The three lifting boxes (603) are respectively arranged horizontally at the center inside the cold delivery pipe (601). The activated carbon (604), adsorption cotton (605) and filter membrane (606) are respectively arranged horizontally at the center inside the lifting box (603).

4. The heat dissipation device of a ring main unit according to claim 1, characterized in that: The heat dissipation structure (7) comprises a protective shell (701), a heat exhaust port (702), a second filter (703), a second fan (704) and a plurality of exhaust ports (705), wherein the protective shell (701) is arranged at the center of the upper end face of the cabinet (1), the heat exhaust port (702) is arranged on the upper end face of the cabinet (1) inside the protective shell (701), the second filter (703) is arranged at the upper center of the heat exhaust port (702), the second fan (704) is arranged at the lower center of the heat exhaust port (702), and the plurality of exhaust ports (705) are arranged in a rectangular shape at the center of the front end face and the rear end face of the protective shell (701).

5. The heat dissipation device of a ring main unit according to claim 4, characterized in that: The protective shell (701) is made of engineering plastic.

6. The heat dissipation device of a ring main unit according to claim 1, characterized in that: The cabinet (1) and the refrigeration box (3) are both made of aluminum alloy.

7. The heat dissipation device of a ring main unit according to claim 2, characterized in that: A first filter screen (507) is provided at the inner center of each of the two through holes (506).

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