CN105576531B - The preferable power distribution cabinet of radiating effect - Google Patents

Abstract

The invention discloses a power distribution cabinet with better heat dissipation effect, comprising: the cabinet body is connected with a rain collection box, a solar panel is fixed inside the rain collection box, a filter screen is arranged in the middle of the rain collection box, and the rain collection box There is a drainage hole at the bottom, one end of the main drainage pipe is connected to the drainage hole, and the other end of the main drainage pipe is respectively connected to N drainage branch pipes; N partitions are arranged in the cabinet, and the partitions are hollow and sealed. shape, the other ends of the N drainage branch pipes respectively extend into the hollow areas of the N partitions, the wind power generator is connected to the side of the cabinet through the second bracket, and the storage battery is fixed in the cabinet, so Both the wind power generator and the solar panel are connected to the storage battery; a heat dissipation fan is fixed in the cabinet, which realizes a reasonable design of the power distribution cabinet and a good heat dissipation effect. The technical effect of well-protected equipment.

Description

Power distribution cabinet with better cooling effect

technical field

The invention relates to the field of power distribution equipment research, in particular to a power distribution cabinet with better heat dissipation effect.

Background technique

Power distribution cabinets (boxes) are divided into power distribution cabinets (boxes), lighting distribution cabinets (boxes), and metering cabinets (boxes), which are the final equipment of the power distribution system. The power distribution cabinet is a general term for the motor control center. The power distribution cabinet is used in the occasions where the load is relatively scattered and there are few circuits; the motor control center is used in the occasions where the load is concentrated and there are many circuits. They distribute the electric energy of a certain circuit of the upper-level power distribution equipment to the nearest load. This level of equipment shall provide protection, monitoring and control of the load.

The outdoor low-voltage power distribution box (referred to as "distribution box") is a low-voltage power distribution equipment used to receive and distribute electric energy in the 380/220V power supply system. It is generally installed on the low-voltage side of the distribution transformer and other places. The box is usually equipped with protection appliances such as fuses, leakage protectors, and lightning arresters, control appliances such as contactors, circuit breakers, load switches, and isolating switches, metering appliances such as current transformers and energy meters, and compensation equipment such as capacitors. With the implementation of urban and rural power grid construction and renovation projects, the widespread use of distribution boxes, and the continuous increase in social electricity consumption, some problems in operation have been exposed one after another, which must be paid attention to.

Excessive temperature reduces the service life of the electrical equipment in the distribution box: the upper limit of the ambient temperature of the electrical equipment designed and manufactured according to the national standard should not exceed 40°C, and the operating distribution box exposed to the scorching sun in midsummer, due to Due to the direct sunlight, the heat reflection of the concrete floor and the heat generated by the equipment in the box, sometimes the temperature in the box exceeds 60°C. Such a high temperature can easily cause the insulation aging of electrical coils and lead wires to break down and burn out; the contact resistance of electrical contacts increases due to excessive temperature, and the increase in contact resistance intensifies heating. Such a vicious cycle eventually leads to burnout of the contacts; at the same time Excessive temperature will also affect the stability of electrical protection performance, the reliability of operation, and the accuracy of measurement.

In the prior art, louvers are mainly installed on the side of the power distribution cabinet for heat dissipation, and the heat dissipation effect is poor, and rainwater easily enters the power distribution cabinet from the louvers, causing equipment damage.

To sum up, in the process of realizing the technical solution of the invention in the embodiment of the present application, the inventor of the present application found that the above-mentioned technology has at least the following technical problems:

In the prior art, the existing power distribution cabinet has a poor heat dissipation effect, and rainwater easily enters the power distribution cabinet from the louvers, resulting in technical problems of equipment damage.

Contents of the invention

The invention provides a power distribution cabinet with a better heat dissipation effect, which solves the technical problem that the existing power distribution cabinet has a poor heat dissipation effect, rainwater easily enters the power distribution cabinet from the shutters, and causes equipment damage, and realizes the distribution cabinet. The design of the electric cabinet is reasonable, the heat dissipation effect is good, and the technical effect of good protection for the equipment in the power distribution cabinet is guaranteed while the heat dissipation effect is guaranteed.

In order to solve the above technical problems, the embodiment of the present application provides a power distribution cabinet with better heat dissipation effect, and the power distribution cabinet includes:

Cabinet, the lower end of the first bracket is connected to the upper surface of the cabinet, the upper end of the first bracket is connected to the lower surface of the rain collection box, the upper surface of the rain collection box is open, and the solar energy is fixed in the rain collection box The battery board, the middle part of the rain collection box is provided with a filter screen, the bottom of the rain collection box is provided with a drain hole, one end of the drain main pipe is connected to the drain hole, and the other end of the drain main pipe is respectively connected to one end of the N drainage branch pipes. connected, the N is a positive integer greater than or equal to 3; the cabinet is provided with N partitions, and the partitions are provided with M vertical cooling holes, and the M is a positive integer greater than or equal to 10 , the inside of the partition is hollow and sealed, and the other ends of the N drainage branch pipes respectively extend into the hollow areas of the N partitions, and the drainage branch pipes are provided with on-off valves; the left and right sides of the cabinet The top is respectively connected with a rain shield, and the left and right sides of the cabinet are provided with P ventilation holes, the P is a positive integer greater than or equal to 20, and the height of the hole end of the ventilation hole in the cabinet is higher than that in the cabinet. The height of the hole end outside the cabinet; the cabinet is provided with a desiccant layer filled with desiccant; the wind power generator is connected to the side of the cabinet through the second bracket, and the storage battery is fixed in the cabinet. Both the wind generator and the solar panel are connected to the storage battery; a heat dissipation fan is fixed in the cabinet, the heat dissipation fan is connected to the storage battery, and the bottom end of the conical air collecting hood is connected to the heat dissipation fan. One end of the exhaust main pipe is connected to the top of the conical gas collecting hood, and the other end of the exhaust main pipe is respectively connected to Q corrugated hoses, the Q is a positive integer greater than or equal to 5, and the A switch valve is provided on the corrugated hose.

Wherein, the cabinet body is in the shape of a cuboid, the cabinet body is made of stainless steel, and a heat insulation layer is provided on the surface of the cabinet body.

Wherein, the N partitions are evenly distributed in the cabinet.

Wherein, the connection between the first bracket and the cabinet body is by welding.

One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

Due to the design of the power distribution cabinet with better heat dissipation effect, it includes: a cabinet body, the lower end of the first bracket is connected with the upper surface of the cabinet body, the upper end of the first bracket is connected with the lower surface of the rain collecting box, and the The upper surface of the rain box is open, the solar panel is fixed inside the rain box, the middle part of the rain box is provided with a filter, the bottom of the rain box is provided with a drain hole, and one end of the drain main pipe is connected to the drain hole. connected, the other end of the drainage main pipe is connected to one end of N drainage branch pipes respectively, and the N is a positive integer greater than or equal to 3; N partitions are arranged in the cabinet, and M partitions are arranged on the partition The cooling holes in the vertical direction, the M is a positive integer greater than or equal to 10, the inside of the partition is hollow and sealed, and the other ends of the N drainage branch pipes respectively extend into the hollow areas of the N partitions , the branch drainage pipe is provided with a switch valve; the top of the left and right sides of the cabinet is respectively connected with a rain shield, and the left and right sides of the cabinet are provided with P air holes, and the P is a positive integer greater than or equal to 20, The height of the hole end of the ventilation hole located in the cabinet is greater than the height of the hole end located outside the cabinet; a drying layer is provided in the cabinet, and the drying layer is filled with a desiccant; the wind power generator passes through the second bracket It is connected with the side of the cabinet, and a storage battery is fixed in the cabinet, and both the wind power generator and the solar panel are connected with the storage battery; a heat dissipation fan is fixed in the cabinet, and the heat dissipation fan is connected with the The battery is connected, the bottom end of the conical air collecting hood is connected with the heat dissipation fan, one end of the exhaust main pipe is connected with the top of the conical air collecting hood, and the other end of the exhaust main pipe is respectively connected with Q corrugated soft The pipes are all connected, the Q is a positive integer greater than or equal to 5, and the corrugated hose is provided with a technical solution of an on-off valve, that is, when it rains, the rain shield can be used to block the rainwater and prevent the rainwater from entering the cabinet. In addition, there are ventilation holes on the side of the cabinet to form air flow for heat dissipation. At the same time, the ventilation holes are designed as oblique holes that are inclined upward to prevent rainwater from entering the cabinet, protect the equipment in the cabinet, and use the rain collection box to collect rainwater. Collect, use the filter to filter impurities to avoid clogging, the collected rainwater enters the drainage branch pipe through the main drainage pipe, and then discharges into the partition, install the components on the partition, and use the water stored in the partition to clean the partition Cool the components on the cabinet to avoid excessive temperature, and there are cooling holes on the partition to facilitate the formation of air flow for heat dissipation. There is a drying layer to ensure the drying of the cabinet and prevent the equipment from being damp. Using solar panels and wind power The generator generates electricity to charge the battery, and the battery supplies power to the cooling fan, which is energy-saving and environmentally friendly. Fixing the solar panel in the rain collection box can save limited space, because in order to ensure the sunlight effect of the solar panel, the solar panel needs to be installed on the If the top of the cabinet is installed elsewhere on the top, it will occupy more area, resulting in the reduction of the volume of the rain collection box, and the amount of rain collected will be less. into the exhaust branch pipe, and then discharged into the corrugated hose, because the corrugated hose can be bent and shaped, it can be matched Focus on heat dissipation in the area where more heat is generated in the interior to ensure the heat dissipation effect. Therefore, it effectively solves the technical problem that the existing power distribution cabinet has poor heat dissipation effect, and rainwater easily enters the power distribution cabinet from the shutters, causing equipment damage. Furthermore, the design of the power distribution cabinet is reasonable, the heat dissipation effect is good, and the technical effect of good protection for the equipment in the power distribution cabinet is achieved while ensuring the heat dissipation effect.

Description of drawings

Fig. 1 is a schematic structural diagram of a power distribution cabinet with a better heat dissipation effect in Embodiment 1 of the present application;

Among them, 1-cabinet body, 2-first bracket, 3-rain collection box, 4-solar panel, 5-filter, 6-drainage main pipe, 7-drainage branch pipe, 8-baffle, 9-radiation hole, 10-rainshield, 11-air vent, 12-wind generator, 13-second bracket, 14-battery, 15-cooling fan, 16-conical gas collecting hood, 17-exhaust main pipe, 18-corrugated soft Tube.

detailed description

The invention provides a power distribution cabinet with a better heat dissipation effect, which solves the technical problem that the existing power distribution cabinet has a poor heat dissipation effect, rainwater easily enters the power distribution cabinet from the shutters, and causes equipment damage, and realizes the distribution cabinet. The design of the electric cabinet is reasonable, the heat dissipation effect is good, and the technical effect of good protection for the equipment in the power distribution cabinet is guaranteed while the heat dissipation effect is guaranteed.

The technical solution in the implementation of this application is to solve the above technical problems. The general idea is as follows:

The power distribution cabinet with better heat dissipation effect is designed to include: a cabinet body, the lower end of the first bracket is connected to the upper surface of the cabinet body, the upper end of the first bracket is connected to the lower surface of the rain collection box, and the rain collection box The upper surface is open, solar panels are fixed inside the rain collection box, a filter screen is provided in the middle of the rain collection box, a drainage hole is provided at the bottom of the rain collection box, and one end of the main drainage pipe is connected to the drainage hole. The other end of the drainage main pipe is respectively connected to one end of N drainage branch pipes, and the N is a positive integer greater than or equal to 3; N partitions are arranged in the cabinet, and M vertical partitions are arranged on the partition. direction, the M is a positive integer greater than or equal to 10, the inside of the partition is hollow and sealed, and the other ends of the N drainage branch pipes respectively extend into the hollow areas of the N partitions. An on-off valve is provided on the drainage branch pipe; a rain shield is respectively connected to the top of the left and right sides of the cabinet, and P air holes are provided on the left and right sides of the cabinet, and the P is a positive integer greater than or equal to 20. The height of the hole end of the ventilation hole located in the cabinet is greater than the height of the hole end located outside the cabinet; a drying layer is provided in the cabinet, and the drying layer is filled with a desiccant; The side of the cabinet body is connected, and a storage battery is fixed in the cabinet, and the wind power generator and the solar panel are connected with the storage battery; a cooling fan is fixed in the cabinet, and the cooling fan is connected to the battery connected, the bottom end of the conical air collecting hood is connected to the cooling fan, one end of the exhaust main pipe is connected to the top of the conical air collecting hood, and the other end of the exhaust main pipe is connected to Q corrugated hoses respectively. connected, the Q is a positive integer greater than or equal to 5, and the corrugated hose is provided with a technical solution of an on-off valve, that is, when it rains, the rain shield can be used to block the rainwater, preventing rainwater from entering the cabinet, and the cabinet Ventilation holes are provided on the side to form air flow for heat dissipation. At the same time, the ventilation holes are designed as oblique holes inclined upwards to prevent rainwater from entering the cabinet and protect the equipment in the cabinet. Rainwater is collected by the rain collection box. Use the filter to filter impurities to avoid clogging. The collected rainwater enters the drainage branch pipe through the main drainage pipe, and then is discharged into the partition. The components are installed on the partition, and the water stored in the partition can The components are cooled to avoid excessive temperature, and there are cooling holes on the partition to facilitate the formation of air flow for heat dissipation. There is a drying layer to ensure the drying of the cabinet and prevent the equipment from being damp. Using solar panels and wind generators Power generation is used to charge the battery, and the battery supplies power to the cooling fan, which is energy-saving and environmentally friendly. Fixing the solar panel in the rain collection box can save limited space, because in order to ensure the sunlight effect of the solar panel, the solar panel needs to be installed on the top of the cabinet , if it is installed elsewhere on the top, it will occupy more area, resulting in a smaller volume of the rain collection box, and less rain will be collected. The cooling fan rotates to generate airflow, which is collected by the conical air collection hood, and then discharged into the exhaust into the air branch pipe, and then discharged into the corrugated hose, because the corrugated hose can be bent and shaped, it can be used for local The area with more heat is focused on heat dissipation to ensure the heat dissipation effect. Therefore, it effectively solves the technical problem that the existing power distribution cabinet has a poor heat dissipation effect, and rainwater easily enters the power distribution cabinet from the shutters, causing equipment damage. The design of the power distribution cabinet is reasonable, the heat dissipation effect is good, and the technical effect of good protection for the equipment in the power distribution cabinet is ensured while ensuring the heat dissipation effect.

In order to better understand the above-mentioned technical solution, the above-mentioned technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

Embodiment one:

In Embodiment 1, a power distribution cabinet with better heat dissipation effect is provided, please refer to FIG. 1, the power distribution cabinet includes:

Cabinet 1, the lower end of the first bracket 2 is connected to the upper surface of the cabinet, the upper end of the first bracket is connected to the lower surface of the rain collection box 3, the upper surface of the rain collection box is open, and the inside of the rain collection box A solar panel 4 is fixed, a filter screen 5 is provided in the middle of the rain collection box, and a drainage hole is provided at the bottom of the rain collection box. One end of each drainage branch pipe 7 is connected, and said N is a positive integer greater than or equal to 3; said cabinet is provided with N partitions 8, and said partition is provided with M vertical cooling holes 9, so Said M is a positive integer greater than or equal to 10, the inside of the partition is hollow and sealed, and the other ends of the N drainage branch pipes respectively extend into the hollow areas of the N partitions, and the drainage branch pipes are provided with On-off valve; the top of the left and right side of the cabinet is connected with a rain shield 10 respectively, and the left and right sides of the cabinet are provided with P air holes 11, the P is a positive integer greater than or equal to 20, and the air holes are located at the The hole end height in the cabinet is greater than the hole end height located outside the cabinet; a drying layer is provided in the cabinet, and a desiccant is filled in the drying layer; the wind power generator 12 connects with the cabinet through the second support 13 The side of the body is connected, and a storage battery 14 is fixed in the cabinet, and the wind power generator and the solar panel are connected with the storage battery; a cooling fan 15 is fixed in the cabinet, and the cooling fan is connected to the storage battery. Connected, the bottom end of the conical air collecting hood 16 is connected with the heat dissipation fan, one end of the exhaust main pipe 17 is connected with the top of the conical air collecting hood, and the other end of the exhaust main pipe is connected with Q corrugated flexible pipes respectively. The pipes 18 are all connected, the Q is a positive integer greater than or equal to 5, and the corrugated hose is provided with an on-off valve.

Wherein, in the embodiment of the present application, the cabinet body is in the shape of a cuboid, the cabinet body is made of stainless steel, and a heat insulation layer is provided on the surface of the cabinet body. The heat insulation layer can prevent sunlight from absorbing heat from entering the cabinet. Specifically, it may be an aluminum foil heat-insulating coiled material in the prior art, also known as barrier film, heat-insulating film, heat-insulating foil, heat-extracting film, reflective film, and the like. It is made of aluminum foil veneer + polyethylene film + fiber braid + metal coating film laminated by hot melt adhesive. The aluminum foil heat insulation coil has the functions of heat insulation, water resistance and moisture resistance. The sunlight absorption rate (solar radiation absorption coefficient) of aluminum foil heat insulation coil is extremely low (0.07), has excellent heat insulation performance, can reflect more than 93% of radiant heat, and is widely used in building roof and exterior wall heat insulation insulation.

Wherein, in the embodiment of the present application, the N partitions are evenly distributed in the cabinet.

Wherein, in the embodiment of the present application, the connection between the first bracket and the cabinet body is performed by welding.

The above-mentioned technical solutions in the embodiments of the present application have at least the following technical effects or advantages:

Due to the design of the power distribution cabinet with better heat dissipation effect, it includes: a cabinet body, the lower end of the first bracket is connected to the upper surface of the cabinet body, the upper end of the first bracket is connected to the lower surface of the rain collection box, and the rain collection box The upper surface of the box is open, the solar panel is fixed inside the rain collection box, the middle part of the rain collection box is provided with a filter screen, the bottom of the rain collection box is provided with a drain hole, and one end of the drain main pipe is connected to the drain hole , the other end of the drainage main pipe is connected to one end of N drainage branch pipes respectively, and the N is a positive integer greater than or equal to 3; N partitions are arranged in the cabinet, and M vertical partitions are arranged on the partition The heat dissipation holes in the vertical direction, the M is a positive integer greater than or equal to 10, the inside of the partition is hollow and sealed, and the other ends of the N drainage branch pipes respectively extend into the hollow areas of the N partitions, On-off valves are provided on the drainage branch pipe; a rain shield is connected to the top of the left and right sides of the cabinet, and P air holes are provided on the left and right sides of the cabinet, and the P is a positive integer greater than or equal to 20, so The height of the hole end of the ventilation hole located in the cabinet is greater than the height of the hole end located outside the cabinet; a drying layer is provided in the cabinet, and the drying layer is filled with a desiccant; The side of the cabinet is connected, and a storage battery is fixed in the cabinet, and the wind power generator and the solar panel are connected to the storage battery; a cooling fan is fixed in the cabinet, and the cooling fan is connected to the storage battery. The battery is connected, the bottom end of the conical air collecting hood is connected to the heat dissipation fan, one end of the exhaust main pipe is connected to the top of the conical air collecting hood, and the other end of the exhaust main pipe is respectively connected to Q corrugated hoses are connected, the Q is a positive integer greater than or equal to 5, and the corrugated hose is provided with a technical solution of an on-off valve, that is, when it rains, the rain shield can be used to block the rainwater and prevent the rainwater from entering the cabinet, and There are vent holes on the side of the cabinet to form air flow for heat dissipation. At the same time, the vent holes are designed as oblique holes inclined upward to prevent rainwater from entering the cabinet, protect the equipment in the cabinet, and use the rain collection box to collect rainwater. , use the filter to filter impurities to avoid clogging, the collected rainwater enters the drainage branch pipe through the main drainage pipe, and then discharges into the partition, installs the components on the partition, and uses the water stored in the partition to clean the partition. The components are cooled to avoid excessive temperature, and there are cooling holes on the partition to facilitate the formation of air flow for heat dissipation. There is a drying layer to ensure the drying of the cabinet and prevent the equipment from being damp. Solar panels and wind power are used to generate heat Electrical appliances generate electricity to charge the battery, and the battery supplies power to the cooling fan, which is energy-saving and environmentally friendly. Fixing the solar panel in the rain collection box can save limited space, because in order to ensure the sunlight effect of the solar panel, the solar panel needs to be installed in the cabinet The top, if it is installed at other places on the top, will occupy more area, resulting in the reduction of the volume of the rain collection box, the collected rain will be less, the cooling fan rotates to generate airflow, the airflow is collected by the conical air collection hood, and then discharged into the into the exhaust branch pipe, and then discharged into the corrugated hose, because the corrugated hose can be bent and shaped, it can be localized The areas that generate more heat are focused on heat dissipation to ensure the heat dissipation effect. Therefore, the existing power distribution cabinets have poor heat dissipation effects, and rainwater easily enters the power distribution cabinet from the shutters, causing equipment damage. Technical problems, and then The design of the power distribution cabinet is reasonable, the heat dissipation effect is good, and the technical effect of good protection for the equipment in the power distribution cabinet is achieved while ensuring the heat dissipation effect.

While preferred embodiments of the invention have been described, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, it is intended that the appended claims be construed to cover the preferred embodiment as well as all changes and modifications which fall within the scope of the invention.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (3)

1. the preferable power distribution cabinet of radiating effect, it is characterised in that the power distribution cabinet includes：

Cabinet, first support lower end is connected with the cabinet upper surface, and the first support upper end is connected with collection rain case lower surface, The rain case upper surface that integrates is fixed with the middle part of solar panel, the collection rain case in the collection rain case and was provided with as opening shape Filter screen, the collection rain bottom portion is provided with osculum, and drain header one end is connected with the osculum, the drain header other end One end with N number of branch drain is all connected with respectively, and the N is the positive integer more than or equal to 3；N number of dividing plate is provided with the cabinet, Heat emission hole of the dividing plate provided with M vertical direction, the M is to be hollow in the positive integer more than or equal to 10, the dividing plate Shape is sealed, the other end of N number of branch drain is extended respectively in the hollow area of N number of dividing plate, the branch drain It is provided with switch valve；A weather shield is connected at the top of the cabinet left and right side, the cabinet left and right side is equipped with P Air-vent, the P is the positive integer more than or equal to 20, and the nose end that the air-vent is located in the cabinet, which is highly more than, is located at institute State the nose end height outside cabinet；It is provided with the cabinet in drying layer, the drying layer and is filled with drier；Wind turbine generator leads to The side that second support is crossed with the cabinet is connected, and is fixed with battery in the cabinet, the wind turbine generator and it is described too Positive energy cell panel is connected with the battery；Heat emission fan is fixed with the cabinet, the heat emission fan connects with the battery Connect, the bottom of taper gas skirt is connected with the heat emission fan, one end of exhaust supervisor is connected with the top of the taper gas skirt, The other end of the exhaust supervisor is all connected with Q corrugated flexible hose respectively, and the Q is the positive integer more than or equal to 5, the ripple Flexible pipe is provided with switch valve；The cabinet is rectangular-shape, and the cabinet is made of stainless steel, the cabinet surface be provided with every Thermosphere.

2. the preferable power distribution cabinet of radiating effect according to claim 1, it is characterised in that N number of dividing plate is uniformly distributed In the cabinet.

3. the preferable power distribution cabinet of radiating effect according to claim 1, it is characterised in that the first support and the cabinet It is attached between body using the connected mode of welding.