CN213906055U - Heat radiator for low-voltage distribution cabinet - Google Patents
Heat radiator for low-voltage distribution cabinet Download PDFInfo
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- CN213906055U CN213906055U CN202022692591.7U CN202022692591U CN213906055U CN 213906055 U CN213906055 U CN 213906055U CN 202022692591 U CN202022692591 U CN 202022692591U CN 213906055 U CN213906055 U CN 213906055U
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Abstract
The application relates to switch board heat dissipation field especially relates to a heat abstractor of low-voltage distribution cabinet, and its technical scheme main points are: the multifunctional cabinet comprises a cabinet body, wherein a negative pressure fan and a horizontally arranged frame-shaped rack are arranged at the top of the cabinet body, a rotating shaft of the negative pressure fan is vertically arranged, and the rotating shaft of the negative pressure fan is rotationally connected with the rack; the top of the cabinet body is provided with a first heat dissipation opening, and the rack is fixed on the peripheral wall of the first heat dissipation opening; a driving piece capable of driving the negative pressure fan is fixed on the frame; the heat that makes the switch board inside is arranged to external environment in following the switch board more to reached to improve the radiating effect's of switch board purpose.
Description
Technical Field
The application relates to the field of heat dissipation of power distribution cabinets, in particular to a heat dissipation device of a low-voltage power distribution cabinet.
Background
The power distribution cabinet is a general name of a motor control center. The power distribution cabinet is used in the occasions with dispersed loads and less loops; the motor control center is used for occasions with concentrated loads and more loops.
Most of the heat dissipation modes of the power distribution cabinet recorded in the related art are formed by arranging a plurality of heat dissipation holes around the cabinet body, and partial heat generated by the electric elements inside the cabinet body is diffused to the external environment of the cabinet body through the heat dissipation holes so as to achieve the purpose of heat dissipation and cooling.
In view of the above-mentioned related art solutions, the inventors found that: when the heat generated by the electric element is too much, the heat dissipation holes cannot enable the heat in the cabinet body to be fully diffused to the external environment, and the cooling effect is poor.
SUMMERY OF THE UTILITY MODEL
Arrange to the external environment in order to make the inside heat of switch board more from the switch board to improve the radiating effect of switch board, this application provides a heat abstractor of low-voltage distribution cabinet.
The application provides a heat abstractor of low-voltage distribution cabinet adopts following technical scheme:
a heat dissipation device of a low-voltage power distribution cabinet comprises a cabinet body, wherein a negative pressure fan and a horizontally arranged frame-shaped rack are arranged at the top of the cabinet body, a rotating shaft of the negative pressure fan is vertically arranged, and the rotating shaft of the negative pressure fan is rotatably connected with the rack; the top of the cabinet body is provided with a first heat dissipation opening, and the rack is fixed on the peripheral wall of the first heat dissipation opening; and a driving piece capable of driving the negative pressure fan is fixed on the frame.
By adopting the technical scheme, the driving assembly is started and drives the negative pressure fan to rotate; the negative pressure fan can enable the interior of the cabinet body to generate negative pressure, namely the pressure intensity in the cabinet body is smaller than the pressure intensity of the external environment, the air in the cabinet body has the tendency of diffusing to the external environment, and then the air with higher temperature in the cabinet body and the heat are pumped out from the interior of the cabinet body through the first heat dissipation port; make the inside heat of switch board arrange to the external environment in the switch board more to improve the radiating effect of switch board.
Preferably, a temperature sensor is arranged in the power distribution cabinet; the temperature sensor is coupled with a PLC which can control the rotation of the driving piece.
By adopting the technical scheme, when the temperature in the cabinet body is too high, the temperature sensor can detect the change of the over-high temperature and convert a signal of the over-high temperature into an electric signal to be transmitted to the PLC, and the PLC further controls the driving piece to rotate; therefore, when the temperature is in a bottom-crossing state and the negative pressure fan is not needed for heat dissipation, the driving piece can be in a closed state, and electric energy is further saved.
Preferably, a plurality of heat dissipation plates are vertically arranged at the top of the cabinet body, and the heat dissipation plates are arranged around the circumference of the first heat dissipation port; the heat dissipation plate is provided with a plurality of heat dissipation holes; the top of the heat dissipation plate is connected with a horizontally arranged top plate.
By adopting the technical scheme, the top plate can prevent external dust or rainwater from entering the cabinet body through the first heat dissipation port to damage the electric elements in the cabinet body; on one hand, the heat dissipation plate plays a supporting role for the top plate; on the other hand, the gas and heat with higher temperature discharged from the first heat dissipation port can be discharged to the external environment through the heat dissipation holes on the heat dissipation plate.
Preferably, the bottom of the cabinet body is horizontally provided with a screen plate, and the cabinet body is communicated with the outside through the screen plate.
By adopting the technical scheme, when the negative pressure fan rotates, negative pressure is generated inside the cabinet body, and because the screen plate is arranged at the bottom of the cabinet body, air in the external environment of the cabinet body can form convection blowing from the screen plate to the negative pressure fan and is discharged out of the cabinet body through the first heat dissipation port; in addition, the otter board can hinder bulky debris of external environment from entering the internal portion of cabinet.
Preferably, the cabinet door is further included; the cabinet door is provided with a ventilation screen window.
Through adopting above-mentioned technical scheme, when the temperature of the internal portion of cabinet is higher, the ventilation screen window has improved the ventilation condition of the internal portion of cabinet and external environment, has improved the radiating effect of the internal portion of cabinet.
Preferably, a transparent glass window is further arranged on the cabinet door, the glass window is arranged on one side, away from the inside of the cabinet body, of the ventilation screen window, and one side edge of the glass window is hinged with the cabinet body.
By adopting the technical scheme, when the negative pressure fan is started, the glass window is closed, so that convection air blowing is formed from the screen plate to the negative pressure fan, the adverse effect of the screen window on the convection air is reduced, and the negative pressure condition in the cabinet body is more excellent; in addition, because the glass window is transparent, people can observe the electric elements in the cabinet body through the glass window without opening the cabinet door; when the cabinet body is internally descended and the negative pressure fan is closed, the glass window is opened through the hinged relation.
Preferably, an air filter screen horizontally arranged is arranged above the screen plate and fixed on the cabinet body.
Through adopting above-mentioned technical scheme, because the negative pressure condition that the internal portion of cabinet produced, the air of the external environment of the cabinet body can be blown by the formation convection current of otter board to the negative pressure fan, and the external environment especially can carry some dusts in the air that is located cabinet body below and is close to ground, through the air filter, hinders that the dust in the air enters into the internal portion of cabinet through the otter board, causes the pollution to the electric elements of the internal portion of cabinet.
Preferably, the conical cabinet body is internally provided with a heat absorption water pipe which is arranged on the wall of the cabinet body and is coiled in a snake shape; the input end of the heat absorption water pipe is provided with a water supply part.
By adopting the technical scheme, water is supplied to the heat absorption water pipe in the cabinet body through the water supply part, because the temperature in the cabinet body is higher, water in the heat absorption water pipe is partially evaporated under the action of heat in the cabinet body, and the water absorbs partial heat in the cabinet body in the evaporation process and plays a role in cooling the interior of the cabinet body; the heat absorption water pipe is snakelike coiled cloth, has increased the heat of the internal portion of cabinet and has inhaled the active area of the inside water of heat absorption water pipe, further improves the heat absorption effect.
Preferably, a tapered ceiling is arranged on the top plate, and the area of the bottom surface of the ceiling is larger than the cross-sectional area of the cabinet body.
Through adopting above-mentioned technical scheme, when the cabinet body sets up in the open air, the toper ceiling can shelter from the rainwater, hinders that the rainwater enters into the internal portion of cabinet through four louvres and leads to the internal portion of cabinet's electric elements to damage.
Preferably, the water supply member includes a water collection box provided on a ceiling; the water collecting box horizontally extends for a circle in the direction far away from the ceiling on the bottom surface of the ceiling; the heat absorption water pipe is communicated with the inside of the water collecting box.
By adopting the technical scheme, water is manually added into the heat absorption water pipe through the water collecting box; when the external environment rains, rainwater can flow to the interior of the water collecting box through the ceiling and flow into the heat absorption water pipe, the rainwater is recycled, and water resources are saved.
In summary, the present application has the following technical effects:
1. through the arrangement of the negative pressure fan and the screen plate, convection blowing can be formed from the screen plate to the negative pressure fan by air in the external environment of the cabinet body, so that more heat in the power distribution cabinet is discharged from the power distribution cabinet to the external environment, and the heat dissipation effect of the power distribution cabinet is improved;
2. through having set up the heat absorption water pipe, when the internal portion temperature of cabinet is higher, the inside water of heat absorption water pipe can carry the internal portion's of cabinet partial heat and discharge into external environment in the evaporation process, has further improved the radiating effect of the internal portion of cabinet.
Drawings
Fig. 1 is an overall structural view of a cabinet body of a power distribution cabinet in an embodiment of the present application;
fig. 2 is a cross-sectional view of a cabinet body of a power distribution cabinet in an embodiment of the present application;
fig. 3 is a partially enlarged view of a portion a in fig. 2.
In the figure, 1, a cabinet body; 11. a first heat dissipation port; 12. a second heat dissipation port; 13. a second heat dissipation hole; 14. a cabinet door; 2. a negative pressure air exhaust assembly; 21. a negative pressure fan; 22. a frame; 23. rotating the motor; 24. a temperature sensor; 25. a PLC; 3. a heat dissipation plate; 31. a first heat dissipation hole; 4. a top plate; 5. a screen plate; 6. a ventilation screen window; 7. a glass window; 8. an air screen; 9. a ceiling; 91. a water collection box; 10. heat absorption water pipe.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
Referring to fig. 1 and 2, the present application provides a heat dissipation apparatus for a low voltage power distribution cabinet, including a cabinet body 1, wherein a cabinet door 14 is arranged on the cabinet body 1; the top of the cabinet body 1 is provided with a rectangular first heat dissipation opening 11; the first heat dissipation port 11 is provided with a negative pressure air exhaust assembly 2, the negative pressure air exhaust assembly 2 can enable the interior of the cabinet body 1 to generate negative pressure, so that air in the external environment of the cabinet body 1 can form convection air blowing from the interior of the cabinet body 1 to the first heat dissipation port 11, and most of high-temperature gas and heat in the cabinet body 1 can be exhausted by the negative pressure air exhaust assembly 2 through the first heat dissipation port 11; like this, the heat of the internal portion of cabinet 1 can be more in arranging to the external environment from the cabinet 1, has improved the radiating effect of the cabinet 1.
Referring to fig. 2 and 3, the negative pressure air exhaust assembly 2 includes a negative pressure fan 21, a driving member, and a rectangular frame-shaped frame 22 horizontally disposed, wherein the frame 22 is adapted to the first heat dissipating port 11 and is fixedly connected to a side wall of the first heat dissipating port 11; the negative pressure fan 21 is fixed inside the rectangular frame-shaped frame 22, and a rotating shaft of the negative pressure fan 21 is rotatably connected with the bottom surface of the frame 22; the driving part is a rotating motor 23, an output shaft of the rotating motor 23 is fixedly connected with a rotating shaft of the negative pressure fan 21 and is rotatably connected with the top surface of the rack 22, and the rotating motor 23 is fixed on the rack 22 and is arranged on the outer side of the cabinet body 1; the rotating motor 23 is started, the rotating motor 23 drives the negative pressure fan 21 to rotate, the negative pressure fan 21 can generate negative pressure in the cabinet body 1, then the air of the external environment has the trend of moving towards the inside of the cabinet body 1 and the trend of escaping from the temperature of the inside of the cabinet body 1 towards the external environment, the external environment and the inside of the cabinet body 1 form convection air blowing and air exchanging, most of heat in the cabinet body 1 can be rapidly pumped out by the negative pressure fan 21, and the heat dissipation and cooling effects of the cabinet body 1 are improved
Referring to fig. 2 and 3, a temperature sensor 24 is fixed at the top of the cabinet 1, the temperature sensor 24 is coupled with a PLC25, and a PLC25 is coupled with the rotating motor 23 and can control the on/off of the rotating motor 23; when the temperature inside the cabinet body 1 is too high, the temperature sensor 24 receives a temperature signal and converts the signal with the too high temperature into an electric signal, the electric signal is transmitted to the PLC25, and the PLC25 further controls the rotating motor 23 to rotate and further drives the negative pressure fan 21 to rotate; when the temperature is reduced, the temperature sensor 24 transmits a signal to the PLC25, and the PLC25 controls the rotating motor 23 to stop rotating; thus, when the temperature needs to be reduced, the negative pressure fan 21 is started, so that the power consumption is reduced and the electric energy is saved.
Referring to fig. 1 and 3, four heat dissipation plates 3 are vertically arranged at the top of the outer side of the cabinet body 1, the four heat dissipation plates 3 are respectively arranged on four edges of the first heat dissipation opening 11, the bottom of each heat dissipation plate 3 is fixedly connected with the cabinet body 1, and two adjacent heat dissipation plates 3 are fixedly connected; the heat dissipation plate 3 is provided with a plurality of first heat dissipation holes 31, the first heat dissipation holes 31 are waist-shaped holes, and the plurality of first heat dissipation holes 31 are uniformly distributed along the horizontal direction; the top of the heat dissipation plate 3 is horizontally provided with a top plate 4, and the bottom surface of the top plate 4 is fixedly connected with the top of the heat dissipation plate 3; thus, the top plate 4 can prevent external dust and rainwater from entering the cabinet 1 through the first heat dissipation port 11, and the possibility of damage and even explosion of electric elements inside the cabinet 1 is reduced; the air with higher temperature discharged by the negative pressure fan 21 can be discharged from the cabinet 1 through the first heat dissipation hole 31, thereby performing a heat dissipation function.
Referring to fig. 1 and 2, a second heat dissipating port 12 opposite to the first heat dissipating port 11 is formed at the bottom of the cabinet body 1, and the second heat dissipating port 12 is rectangular; thus, the outside air can enter the cabinet body 1 through the second heat dissipation port 12, because the first heat dissipation port 11 and the second heat dissipation port 12 are arranged oppositely, the outside air and the air inside the cabinet body 1 form direct convection blowing through the first heat dissipation port 11 and the second heat dissipation port 12, and the outside air enters the cabinet body 1 through the second heat dissipation port 12; the screen plate 5 fixedly connected with the side wall of the second heat radiating port 12 is arranged in the second heat radiating port 12, and the screen plate 5 can prevent impurities with larger volume outside the cabinet body 1, particularly near the ground, from entering the cabinet body 1 through the second heat radiating port 12 and polluting electronic elements; the direction that ground was kept away from to otter board 5 is provided with the air filter 8 with second thermovent 12 looks adaptation, the lateral wall fixed connection of air filter 8 and second thermovent 12, and the mesh size of air filter 8 is less than the mesh size of otter board 5, and air filter 8 can filter the partial dust impurity that enters into in the air of the internal portion of cabinet 1, further reduces the pollution to the electronic component of the internal portion of cabinet 1.
Referring to fig. 1 and 3, a rectangular ventilation screen window 6 is arranged on the cabinet door 14, and the ventilation screen window 6 is arranged on the side surface of the cabinet door 14 close to the inside of the cabinet body 1; a glass window 7 is arranged on one side of the ventilation screen window 6 far away from the interior of the cabinet body 1, and one side edge of the glass window 7 is hinged with the cabinet door 14 through a hinge; therefore, when the negative pressure fan 21 is not required to be started, the glass window 7 is opened, the interior of the cabinet body 1 is communicated with the external environment through the ventilation screen window 6, and the heat dissipation effect is achieved; when the negative pressure fan 21 needs to be started, the glass window 7 is closed, so that the air inside the cabinet body 1 and the external environment can directly form convection blowing through the first heat radiating port 11 and the second heat radiating port 12 and are not discharged through the ventilation screen window 6, the adverse effect of the ventilation screen window 6 on the negative pressure effect of the negative pressure fan 21 is reduced, and the air exhaust effect of the negative pressure fan 21 is improved; furthermore, one can monitor the condition of the electrical components inside the cabinet 1 through the glass window 7 and the ventilation screen 6.
Referring to fig. 1 and 2, a plurality of second heat dissipation holes 13 in a waist shape are formed in three side walls of the cabinet body 1 except for the side wall where the cabinet door 14 is located, and the plurality of second heat dissipation holes 13 are formed in two rows and are uniformly distributed along the horizontal direction; the heat and the air with higher temperature in the cabinet body 1 can escape from the second heat dissipation opening 12 to the external environment through the natural escape function, so as to play a role of auxiliary heat dissipation.
Referring to fig. 1 and 2, a conical ceiling 9 with a horizontally arranged bottom surface is fixed on the top plate 4, and the area of the bottom surface of the ceiling 9 is larger than the cross-sectional area of the cabinet body 1; the ceiling 9 can shield rainwater or partial dust for the cabinet body 1 and fall to the inside of the cabinet body 1 through the first heat dissipation hole 31, the second heat dissipation hole 13 or the ventilation screen window 6, so that damage to electronic components inside the cabinet body 1 is reduced.
Referring to fig. 1 and 2, a heat absorption water pipe 10 is arranged inside the cabinet body 1, the heat absorption water pipe 10 is fixed on the side wall of the cabinet body 1 far away from the cabinet door 14 and is distributed in a snake shape along the horizontal direction, and one end of the heat absorption water pipe 10 far away from a water inlet is closed; the water inlet end of the heat absorption water pipe 10 is communicated with a water supply group; the water supply group is a water collecting box 91, the water collecting box 91 extends to the direction far away from the ceiling 9 on the bottom surface of the ceiling 9 and is arranged for a circle around the center of the bottom surface of the ceiling 9; therefore, people can add water into the water collecting box 91, the water enters the heat absorption water pipe 10, and when the temperature in the cabinet body 1 is high, the water in the heat absorption water pipe 10 absorbs part of heat in the cabinet body 1 in the evaporation process to play a role in cooling; when the outside rains, rainwater flows into the water collecting box 91 through the ceiling 9, so that the effect of utilizing natural water resources is achieved, and water resources are saved.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (10)
1. A heat dissipation device of a low-voltage power distribution cabinet comprises a cabinet body (1); the method is characterized in that: the top of the cabinet body (1) is provided with a negative pressure fan (21) and a frame-shaped rack (22) which is horizontally arranged, the rotating shaft of the negative pressure fan (21) is vertically arranged, and the rotating shaft of the negative pressure fan (21) is rotatably connected with the rack (22); the top of the cabinet body (1) is provided with a first heat dissipation opening (11), and the rack (22) is fixed on the peripheral wall of the first heat dissipation opening (11); a driving piece capable of driving the negative pressure fan (21) is fixed on the frame (22).
2. The heat dissipation device of a low-voltage distribution cabinet according to claim 1, characterized in that: a temperature sensor (24) is arranged in the power distribution cabinet; a PLC (25) capable of controlling the rotation of the driving member is coupled to the temperature sensor (24).
3. The heat dissipation device of a low-voltage distribution cabinet according to claim 1, characterized in that: a plurality of heat dissipation plates (3) are vertically arranged at the top of the cabinet body (1), and the heat dissipation plates (3) are arranged around the circumference of the first heat dissipation port (11); a plurality of heat dissipation holes are formed in the heat dissipation plate (3); the top of the heat dissipation plate (3) is connected with a top plate (4) which is horizontally arranged.
4. The heat dissipation device of a low-voltage distribution cabinet according to claim 1, characterized in that: the bottom of the cabinet body (1) is horizontally provided with a screen plate (5), and the cabinet body (1) is communicated with the outside through the screen plate (5).
5. The heat dissipation device of a low-voltage distribution cabinet according to claim 1, characterized in that: also comprises a cabinet door (14); the cabinet door (14) is provided with a ventilation screen window (6).
6. The heat dissipation device of a low-voltage distribution cabinet according to claim 5, characterized in that: the cabinet door (14) is also provided with a transparent glass window (7), the glass window (7) is arranged on one side of the ventilation screen window (6) far away from the inside of the cabinet body (1), and one side edge of the glass window (7) is hinged with the cabinet body (1).
7. The heat dissipation device of a low-voltage distribution cabinet according to claim 4, characterized in that: an air filter screen (8) is horizontally arranged above the screen plate (5), and the air filter screen (8) is fixed on the cabinet body (1).
8. The heat dissipation device of a low-voltage distribution cabinet according to claim 1, characterized in that: a heat absorption water pipe (10) is arranged in the cone cabinet body (1), and the heat absorption water pipe (10) is arranged on the wall of the cabinet body (1) and is coiled in a snake shape; the input end of the heat absorption water pipe (10) is provided with a water supply part.
9. The heat dissipation device of a low-voltage distribution cabinet according to claim 8, wherein: a conical ceiling (9) is arranged on the top plate (4), and the area of the bottom surface of the ceiling (9) is larger than the cross-sectional area of the cabinet body (1).
10. The heat dissipation device of a low-voltage distribution cabinet according to claim 9, characterized in that: the water supply part comprises a water collecting box (91) arranged on the ceiling (9); the water collecting box (91) horizontally extends for a circle in the direction far away from the ceiling (9) on the bottom surface of the ceiling (9); the heat absorption water pipe (10) is communicated with the inside of the water collecting box (91).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022692591.7U CN213906055U (en) | 2020-11-18 | 2020-11-18 | Heat radiator for low-voltage distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022692591.7U CN213906055U (en) | 2020-11-18 | 2020-11-18 | Heat radiator for low-voltage distribution cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN213906055U true CN213906055U (en) | 2021-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022692591.7U Active CN213906055U (en) | 2020-11-18 | 2020-11-18 | Heat radiator for low-voltage distribution cabinet |
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| Country | Link |
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| CN (1) | CN213906055U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113784593A (en) * | 2021-09-13 | 2021-12-10 | 安徽飞凯电子技术有限公司 | Assembled heat dissipation cabinet and working method thereof |
| CN116191256A (en) * | 2022-12-29 | 2023-05-30 | 北京东升前进开关厂 | Strong heat dissipation type high-voltage power distribution cabinet |
-
2020
- 2020-11-18 CN CN202022692591.7U patent/CN213906055U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113784593A (en) * | 2021-09-13 | 2021-12-10 | 安徽飞凯电子技术有限公司 | Assembled heat dissipation cabinet and working method thereof |
| CN113784593B (en) * | 2021-09-13 | 2023-07-18 | 安徽飞凯电子技术有限公司 | Assembled heat dissipation cabinet and working method thereof |
| CN116191256A (en) * | 2022-12-29 | 2023-05-30 | 北京东升前进开关厂 | Strong heat dissipation type high-voltage power distribution cabinet |
| CN116191256B (en) * | 2022-12-29 | 2023-10-31 | 北京东升前进开关厂 | Strong heat dissipation type high-voltage power distribution cabinet |
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