CN206387014U - A kind of duct humidifier - Google Patents

Abstract

The utility model discloses an air duct dehumidifier, which comprises: a shell, which is a concave structure with flange flanges, and is located outside the air duct; a radiator, located in the concave structure, is fixed on the shell; a semiconductor refrigerator , located between the radiator and the condenser, including a heat dissipation surface and a cooling surface, the heat dissipation surface is in contact with the radiator, the cooling surface is in contact with the condenser, and both the heat dissipation surface and the cooling surface are provided with There is a thermal pad; the condenser is located in the air duct, and is fixed with the semiconductor refrigerator and the radiator by screws; the fan is located on the shell; between the semiconductor refrigerator and the radiator, the A thermal insulation layer is provided between the semiconductor refrigerator and the condenser. The utility model is compact in structure, small in size and light in weight, rarely occupies the volume of the air duct, does not affect the operation of the air-cooling system, has few moving parts, high reliability, and does not require regular maintenance, and is very suitable for air-cooled electronics with air ducts. equipment.

Description

An air duct dehumidifier

technical field

The utility model relates to the technical field of air cooling, in particular to an air duct dehumidifier of an air cooling system.

Background technique

At present, electronic equipment adopts air-cooling systems to cool its internal electronic components in many ways, and most of them are closed air-cooling systems with air ducts. If the humidity of the air in the air-cooling system is high, it will have a negative impact on the reliable operation of electronic components, reduce the reliability of electronic components, and even cause electronic components to be short-circuited and burned. Therefore, air-cooled electronic equipment generally requires dehumidification equipment, which needs to dehumidify the air in the air duct.

At present, there are mainly the following types of dehumidification equipment on the market: one is the dehumidifier using compression technology, which condenses the moisture in the air through the refrigeration of the compressor and discharges it out of the system to achieve the purpose of dehumidification. This type of dehumidifier is large in size and heavy in weight. , not suitable for small electronic equipment; the second is the dehumidifier using hygroscopic technology, which absorbs water vapor in the air through hygroscopic materials to achieve the effect of dehumidification, but it needs regular maintenance, and it is very frequent to replace when used in high-humidity areas, which takes up manpower; It is a dehumidifier using membrane osmosis technology, but it has a large volume, complex equipment, and low reliability; there are also dehumidifiers on some electronic equipment. Although the volume is small, if installed in the air duct of the air cooling system, it will increase The air resistance of the circulation of the large air cooling system is not suitable for installation and use in the air duct.

Therefore, with the development of air-cooled electronic equipment in the direction of miniaturization, intelligence, and maintenance-free, there is an urgent need for a dehumidifier that can be installed in the air duct of air-cooled electronic equipment to solve the problem of air dehumidification in the closed air-cooled system .

Contents of the invention

In view of the above problems, the utility model provides an air duct dehumidifier, which is installed on the side wall of the air duct of the air cooling system, condenses and discharges the humid air in the cold air in the air duct, and finally reduces the air in the air duct through the continuous circulation of the cold air. Humidity, to achieve a good dehumidification effect.

An air duct dehumidifier, comprising: a housing, which is a concave structure with a flange flange, located outside the air duct; a radiator, located in the concave structure, fixed on the housing; a semiconductor refrigerator, located in the between the radiator and the condenser, including a heat dissipation surface and a cooling surface, the heat dissipation surface is in contact with the radiator, the cooling surface is in contact with the condenser, and both the heat dissipation surface and the cooling surface are provided with thermal pads The condenser is located in the air duct, and is fixed with the semiconductor refrigerator and the radiator by screws; the water tank is located below the condenser and is connected with the radiator, and a drain pipe is connected under the water tank; the fan , located on the shell; condensation cover, located in the air duct, covering the condenser in it, with ventilation holes on the top; between the semiconductor refrigerator and the radiator, between the semiconductor refrigerator and the condensation There is an insulating layer between the devices.

The heat sink is finned, and the fins face to the side of the fan.

The condenser is finned, and the fins face the inside of the air duct.

There are two fans, which are respectively located in the upper half and the lower half of the casing.

The top of the condensation hood is inclined.

It also includes a filter element, which is made by rolling up a filter net and plugged in the drain pipe.

The utility model is compact in structure, small in size and light in weight, rarely occupies the volume of the air duct, does not affect the operation of the air-cooling system, has few moving parts, high reliability, and does not require regular maintenance, and is very suitable for air-cooled electronics with air ducts. equipment; it solves the problem of air dehumidification in the air duct very well, and can also be used as an auxiliary measure and backup equipment for the existing dehumidification equipment to further reduce the humidity of the air in the air duct; the utility model can be used in closed air ducts Widely used in cold electronic equipment, especially suitable for air-cooled systems and other occasions with high humidity requirements, limited structural size, and inconvenient maintenance.

Description of drawings

Fig. 1 is a structural schematic diagram of an embodiment of an air duct dehumidifier of the present invention;

Fig. 2 is the partial structural diagram of the embodiment among Fig. 1;

Explanation of reference signs:

1—shell, 2—radiator, 3—fan, 4—semiconductor refrigerator, 5—condenser, 6—condensing cover, 7—sink, 8—drain pipe, 9—sealing ring, 10—gasket, 11— Non-metallic screw, 12—heat insulation layer, 13—heat conduction gasket, 14—filter element.

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

The air duct dehumidifier includes: shell 1, radiator 2, fan 3 (two), semiconductor refrigerator 4, condenser 5, condensation cover 6, water tank 7, drain pipe 8, sealing ring 9, gasket 10, non-metallic Screws 11, heat insulating material 12, heat conducting gasket 13, filter element 14, etc.

The air duct of the air-cooling system where the dehumidifier is installed is provided with a square hole. The condensation cover 6, condenser 5, semiconductor refrigerator 4, water tank 7, and drain pipe 8 of the dehumidifier extend into the air duct through the square hole. Other components , such as radiator 2, shell 1, fan 3, etc. outside the air duct. The size of the flanging of the dehumidifier shell 1 is larger than the size of the opening of the square hole. Therefore, the radiator 2 completely covers the square opening of the air duct, and the flanging is tightly connected with the air duct by screws, thereby realizing the isolation of the inside and outside of the air duct.

The shell 1 of the dehumidifier is a concave structure made of stainless steel plate. It is located outside the air duct and has a flange flange. It is installed on the side wall of the air duct of the air cooling system, and a gasket is set between the shell 1 and the air duct. 10. Other components of the dehumidifier are installed on the shell 1 directly or indirectly. There are two openings in the middle of the right side plate of the casing 1, and two fans 3 are arranged up and down and installed in the openings. The radiator 2 is a finned radiator 2, installed and fixed inside the concave shape of the casing 1, and fixed to the casing 1 by screws on both sides, and the fins of the radiator 2 face the side of the fan 3. The condenser 5 is a finned condenser 5, which is located inside the air duct, and is mounted on the bottom plate of the radiator 2 through non-metallic screws 11, and the fins of the condenser 5 face the inside of the air duct. The semiconductor refrigerator 4 is located between the radiator 2 and the condenser 5, and is pressed tightly on the radiator 2 by the condenser 5. The refrigerating surface of semiconductor refrigerator 4 links to each other with condenser 5, and the heat dissipation surface links to each other with radiator 2, and all have heat conduction liner 13 on the both sides of semiconductor refrigerator 4, with the contact surface of radiator 2 and condenser 5, and in A heat insulating layer 12 is arranged around the semiconductor refrigerator 4 and between the radiator 2 and the condenser 5 . The condensation cover 6 is located on the left side of the condenser 5 and covers the condenser 5 therein. The top of the condensation cover 6 is an inclined plane, and several ventilation holes are arranged on the inclined plane. The water tank 7 is installed on the radiator 2 and is located below the condenser 5. The water tank 7 has a cavity inside and a drain hole at the bottom. One end of the drain pipe 8 is connected to the opening at the bottom of the water tank 7 , the other end passes through the side wall of the air duct, and a sealing ring 9 is provided where the drain pipe 8 passes through the air duct. The filter element 14 is rolled up by a kind of screen mesh, plugged on the condensate pipe.

The working principle of this air duct dehumidifier will be described below.

After the dehumidifier was connected to the 12V direct current, the refrigerator and the two fans 3 started to work. After the semiconductor refrigerator 4 is energized, it generates cooling capacity, and its cooling side is in contact with the condenser 5 to lower the temperature of the condenser 5 . The continuously circulating air in the air duct of the air-cooling system enters the condensation cover 6 through the opening at the top of the condensation cover 6 and contacts the condenser 5. After the moist air passes over the surface of the low-temperature condenser 5, the water vapor flows on the surface of the condenser 5. Condensation forms water droplets, drips into the water tank 7, the dry air is discharged from the condensation cover 6, and returns to the air duct, and the water tank 7 collects the condensed water and discharges it out of the air duct through the drain pipe 8. Because the air in the air-cooling system is circulating, there is always a certain proportion of air entering the condensing cover 6 to be dehumidified. Through continuous dehumidification through continuous circulation, the humidity of the air in the entire air-cooling system is finally reduced, and the longer the working time The longer, the better the dehumidification effect. The heat dissipation side of the semiconductor refrigerator 4 is in contact with the radiator 2, the heat is transferred to the radiator 2, and finally the heat is discharged to the external environment through the fan 3.

In this example, by calculation, the angle of the top surface of the condensation cover 6 is optimized to be 30°, the resistance to the air cooling system is reduced as much as possible, and the opening ratio of the top of the condensation cover 6 is 40%, and the diameter of the opening is optimized. 8mm, to control the amount of air entering the condensation cover 6, to ensure that the condenser 5 has a lower temperature. After taking the above measures, through experiments and tests, a better dehumidification effect has been achieved; a compressible thermal pad 13 is adopted, It can reduce the contact thermal resistance and enhance the heat transfer effect; the non-metallic screw 11 is used to isolate the heat transfer path between the condenser 5 and the radiator 2 through the screw, and the loss of cooling capacity is reduced; the heat insulating material is used 12. The air between the condenser 5 and the radiator 2 is filled, which reduces the heat transfer and the loss of cooling capacity; the air flow direction of the top of the condensing cover 6 and the bottom of the air flow in and out, so that The wind direction is consistent with the flow direction of condensed water, which is conducive to the condensation and discharge of condensed water. The implementation of the above-mentioned measures has improved the dehumidification capacity of the dehumidifier. In this example, a sealing gasket 10 is provided between the flange of the shell 1 and the air duct, and a sealing ring 9 is provided between the drain pipe 8 and the opening of the air duct, so as to realize the sealing of the air duct of the closed air-cooling system; 8. A filter element 14 is provided at the end, which not only enables the condensed water to flow out smoothly, but also prevents foreign matter from entering.

This embodiment has no condensing fan, which reduces the number of moving parts and improves reliability; adopts the semiconductor refrigeration method, which is small in size, light in weight, and low in noise; through the reasonable optimization design of the condensing cover angle, it does not affect the circulation of the air cooling system. In the case of resistance, the dehumidification capacity is maximized; the control is simple, the reliability is high, and the maintenance is convenient; it has good environmental adaptability, reaches the protection level of IP55, and can meet harsh environmental conditions such as high temperature and high humidity.

The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features.

Claims (6)

1. a kind of duct humidifier, it is characterised in that including：Shell, is the concave structure of a flanged flange, outside air channel Side；Radiator, in the concave structure, is fixed on the housing；Semiconductor cooler, positioned at the radiator and cold Between condenser, including radiating surface and chill surface, the radiating surface is contacted with the radiator, the chill surface contact condenser, Chill bar is equipped with the radiating surface and the chill surface；The condenser is located in air channel, with the semiconductor refrigerating Device, the radiator are fixed by screw；Tank, below the condenser, is connected, under the tank with the radiator It is connected with drainpipe；Blower fan, on the shell；Condensing cover, in air channel, the condenser is covered on wherein, top has Air vent；It is provided between the semiconductor cooler and the radiator, between the semiconductor cooler and the condenser Thermal insulation layer.

2. duct humidifier according to claim 1, it is characterised in that：The radiator is fin-type, and fin is towards wind Machine side.

3. duct humidifier according to claim 1 or 2, it is characterised in that：The condenser is fin-type, fin direction On the inside of air channel.

4. duct humidifier according to claim 1, it is characterised in that：The blower fan is two, respectively positioned at described outer The first half of shell and lower half.

5. duct humidifier according to claim 1, it is characterised in that：It is inclined-plane at the top of the condensing cover.

6. duct humidifier according to claim 1, it is characterised in that：Also include filter core, rolled and be made by screen pack, fill in In the drainpipe.