CN211295819U - Condensation device is prevented to outdoor electric box - Google Patents
Condensation device is prevented to outdoor electric box Download PDFInfo
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- CN211295819U CN211295819U CN201921575436.8U CN201921575436U CN211295819U CN 211295819 U CN211295819 U CN 211295819U CN 201921575436 U CN201921575436 U CN 201921575436U CN 211295819 U CN211295819 U CN 211295819U
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Abstract
The utility model belongs to a condensation device is prevented to outdoor electric box, characterized by: at least comprises the following steps: the electric cabinet comprises an electric cabinet body (6), a cabinet top cover (9) and a cabinet bottom (5), wherein a super-hydrophilic coating (8) is sprayed on the inner surface of the electric cabinet body (6), the surface water drop contact angle of the super-hydrophilic coating (8) is less than 5 degrees, the cabinet top cover (9) is of an interlayer structure, and a heat-insulating material layer (1) is filled on the inner wall of the cabinet top cover, so that the temperature difference between the inside and the outside of the cabinet body; the box bottom (5) is provided with a forward drainage reverse water stop mechanism (7). The anti-condensation device for the outdoor electrical box can prevent water drops on the top cover from falling onto electrical elements to cause short circuit, and effectively avoid condensation formed in the electrical box.
Description
Technical Field
The utility model belongs to an outdoor electric box prevents condensation device suitable for railway, electric power outdoor distribution box, electrical apparatus case, equipment box, transformer box etc. can prevent effectively that the condensation phenomenon from taking place, improves the electric box reliability.
Background
Outdoor environment humidity is high, can lead to the inside condensation phenomenon of electric box to produce when the difference in temperature is big, especially in coastal and north and east northwest region because of the humidity is higher or the difference in temperature is great etc. reason round clock, changes and forms the condensation, and the condensation phenomenon can lead to electrical equipment surface corrosion, and insulating properties reduces, produces flashover and creepage phenomenon, causes the short circuit phenomenon to take place even. The service life of the electrical appliance can be shortened when the electrical appliance element runs in a high-humidity environment for a long time; in particular, when the condensation on the top cover drops on the live component, short circuit is caused, and the electric box is damaged greatly.
The traditional outdoor electrical box is prevented from condensation by heating, dehumidifying and other methods, and the specific mode is as follows.
The method comprises the following steps: heating elements such as heating strips, heating plates and the like are added in the box body.
The second method comprises the following steps: an exhaust fan is added in the box body.
The third method comprises the following steps: and a drying agent is placed in the box body.
The method cannot radically eliminate condensation because the method expands air by heating, only increases the unsaturated degree of water vapor in the air, does not discharge the water vapor in the cabinet, needs to be combined with the method two, does not save energy, and needs to be matched with a control circuit to realize heating control.
In the second method, the humidity in the electrical cabinet is reduced by exchanging the convection of air with the outside dry air, but the electrical cabinet does not work when the environment humidity is high, and dust, dirt and foreign matters are easy to enter the ventilation opening.
The third method has limited water absorption effect, and absorbed water is difficult to discharge, the effect is often not obvious, and the maintenance workload is increased.
Disclosure of Invention
The utility model aims at providing a can prevent that water droplet on the top cap from dropping on electrical components, arousing the outdoor electric box condensation preventing device of short circuit to effectively avoid the condensation that forms in the electric box.
The technical scheme of the utility model is that: the utility model provides a condensation device is prevented to outdoor electric box which characterized by: at least comprises the following steps: electric box, box top cap and bottom half, super hydrophilic coating of electric box top cap inner layer surface spraying, the surface water droplet contact angle of super hydrophilic coating is less than 5, and when the aqueous vapor saturation in the air of incasement, aqueous vapor also can wet completely, spread out on its surface, can not condense into the granule, forms the condensation.
The inner wall of the top cover has an inclination angle with a certain angle with the horizontal direction, so that the spread water flows to the side wall of the box body along the inclination angle.
The top cover is of a sandwich structure, and heat insulation materials are filled in the top cover, so that the temperature change rate inside and outside the box body can be reduced.
One side of the box body base is provided with a forward drainage reverse water stopping mechanism, and condensed water produced in the electric box can be discharged through the forward drainage reverse water stopping mechanism.
The utility model has the advantages that: starting from the cause of condensation formation, the heat-insulating layer is additionally arranged in the top cover aiming at large outdoor day and night temperature difference, so that the temperature change rate in the box body can be reduced. Aiming at high outdoor humidity, the super-hydrophilic coating is sprayed on the inner wall of the top cover, the contact angle of water drops on the surface of the super-hydrophilic coating is less than 5 degrees, and water vapor in the air can be completely wetted and spread on the surface of the super-hydrophilic coating and cannot be condensed into particles; the inner wall of the top cover has an inclination angle with a certain angle with the horizontal direction, so that the spread water flows to the side wall of the box body on one side along the inclination angle. The three methods are matched for use, so that the formation of condensation on the inner wall of the top cover of the electric box and the dripping on the surface of an electric appliance element are avoided.
The invention will be further explained with reference to the drawings of the embodiments.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
In the figure, 1, a heat insulating material layer; 2. the inner wall of the top cover; 3. an electrical component; 4. inclination angle; 5. a base of the box body; 6. an electrical box body; 7. a forward water drainage reverse water stop mechanism; 8. a super-hydrophilic coating; 9. a top cover of the box body; 10. a side wall.
Detailed Description
As shown in fig. 1, the utility model relates to an outdoor electric box condensation preventing device, characterized by: at least comprises the following steps: the electric box body 6, the box body top cover 9 and the box body base 5, the super-hydrophilic coating 8 with a water drop contact angle smaller than 5 degrees is sprayed on the surface of the top cover inner wall 2 of the box body top cover 9, and water vapor in the air can be completely wetted and spread on the surface and cannot be condensed into particles; the box top cover 9 is of an interlayer structure, and the heat-insulating material layer 1 is filled in the inner wall 2 of the top cover, so that the temperature change rate inside and outside the cabinet body can be reduced. The inner wall 2 of the top cover of the electric box body 9 has an inclination angle 4 with the horizontal direction, and the angle of the inclination angle 4 is larger than the contact angle of a water drop, so that spread water can flow to a side wall 10 along the inclination angle 4.
One side of the box base 5 is provided with a forward drainage reverse water stopping mechanism 7, and condensed water generated in the electric box 6 can be discharged through the forward drainage reverse water stopping mechanism 7.
The utility model has the following characteristics: the utility model starts from the cause of condensation formation, and increases the heat preservation material layer 1 on the inner wall 2 of the top cover aiming at large outdoor temperature difference; aiming at high outdoor humidity, the inner surface of the electric box body 6 is sprayed with the super-hydrophilic coating 9, the contact angle of a water drop on the surface of the super-hydrophilic coating 9 is less than 5 degrees, and water vapor in the air can be completely wetted and spread on the surface of the super-hydrophilic coating 9 and cannot be condensed into particles; the inner top cover and the horizontal direction have an inclination angle larger than 5 degrees, so that spread water flows to the side wall of the box body along the inclination angle, and the three methods are matched for use, thereby avoiding the formation of condensation on the inner wall 2 of the top cover and the short circuit caused by the condensation dropping on the electrical element 3.
The electrical box body 6 is installed on the box body base 5, the reverse water stopping mechanism 7 of forward drainage is installed on one side of the box body base 5, the electrical box is discharged through the reverse water stopping mechanism 7 of forward drainage by condensed water generated in the electrical box, the condensed water is effectively prevented from entering the electrical box body 6, an electrical element 3 in the electrical box body 6 is enabled to be short-circuited by the condensed water, and the reliability of the electrical box is improved.
Claims (1)
1. An outdoor electrical box condensation preventing device, comprising at least: electric box (6), box top cap (9) and bottom half (5), characterized by: the super-hydrophilic coating (8) is sprayed on the inner surface of the electric box body (6), the contact angle of water drops on the surface of the super-hydrophilic coating (8) is less than 5 degrees, the top cover (9) of the box body is of an interlayer structure, and the inner wall of the box body is filled with the heat-insulating material layer (1), so that the temperature difference between the inside and the outside of the cabinet body can be reduced; the bottom (5) of the box body is provided with a forward drainage reverse water stop mechanism (7); the inner layer of the interlayer of the box top cover (9) has an inclination angle (4) with the horizontal direction; the angle of the inclination angle (4) is larger than the contact angle of a water drop by 5 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921575436.8U CN211295819U (en) | 2019-09-22 | 2019-09-22 | Condensation device is prevented to outdoor electric box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921575436.8U CN211295819U (en) | 2019-09-22 | 2019-09-22 | Condensation device is prevented to outdoor electric box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211295819U true CN211295819U (en) | 2020-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921575436.8U Active CN211295819U (en) | 2019-09-22 | 2019-09-22 | Condensation device is prevented to outdoor electric box |
Country Status (1)
| Country | Link |
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| CN (1) | CN211295819U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112261845A (en) * | 2020-10-28 | 2021-01-22 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Prevent fine passageway liquid cooling system of condensation |
-
2019
- 2019-09-22 CN CN201921575436.8U patent/CN211295819U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112261845A (en) * | 2020-10-28 | 2021-01-22 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Prevent fine passageway liquid cooling system of condensation |
| CN112261845B (en) * | 2020-10-28 | 2022-06-28 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Prevent fine passageway liquid cooling system of condensation |
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