KR20240018941A - A Cooling and dust collecting device for outdoor heat exchanger of air-conditioning unit - Google Patents

Abstract

The present invention can improve air conditioner cooling efficiency by preventing overheating of the outdoor unit by spraying the water in the water tank toward the outdoor unit at high pressure through a nozzle equipped with a spray head to cool the outdoor unit, and lowering the temperature around the outdoor unit to cool the outdoor unit. It can lower the city's heat island index, which is raised by the heat emitted, and capture fine dust contained in the outdoor air around the outdoor unit. In addition, the water tank automatically operates according to the temperature around the outdoor unit detected using a temperature sensor. Water can be automatically supplied to the nozzle side and sprayed to the outdoor unit, and the spray cycle can be automatically set according to the temperature detected by the temperature sensor and the spray time and spray cycle set in the control unit, thereby optimizing water usage and reducing water waste. The cooling and fine dust collection device for the outdoor unit of an air conditioner has an improved structure to improve the cooling effect of the outdoor unit sprayed at high pressure toward the outdoor unit by adjusting the spacing between the plurality of injection nozzles to suit the site type. It's about.

Description

A cooling and dust collecting device for outdoor heat exchanger of air-conditioning unit}

The present invention relates to a device for cooling the outdoor unit of an air conditioner and collecting fine dust. In particular, the present invention relates to a device for cooling the outdoor unit of an air conditioner and for collecting fine dust. In particular, the water in the water tank is sprayed at high pressure toward the outdoor unit through a nozzle equipped with a spray head to cool the outdoor unit, thereby preventing overheating of the outdoor unit and improving the cooling efficiency of the air conditioner. It can improve the temperature around the outdoor unit, lowering the urban heat island index raised by the heat emitted from the outdoor unit, and capturing fine dust contained in the outdoor air around the outdoor unit, as well as using a temperature sensor. According to the temperature around the outdoor unit detected, water from the water tank can be automatically supplied to the nozzle side and sprayed to the outdoor unit. The water is automatically sprayed according to the temperature detected by the temperature sensor and the spray time and spray cycle set in the control unit. By allowing you to set the cycle, you can reduce water waste by optimizing water usage, and by adjusting the spacing between multiple injection nozzles to suit the site type, you can improve the cooling effect of the outdoor unit sprayed at high pressure toward the outdoor unit. This relates to a cooling and fine dust collection device for the outdoor unit of an air conditioner with an improved structure.

A general air conditioner is a device that controls the temperature and humidity of indoor air in residential spaces, commercial spaces, or offices. The refrigerant gas compressed at high temperature and pressure in the compressor is sent to the condenser, which blows air for the condenser installed on one side. Condensation occurs where the refrigerant gas releases heat and becomes liquefied by the external air blown by the fan. At this time, the hot air that has passed through the condenser is discharged outdoors.

In this way, the refrigerant condensed in the condenser is compressed as it passes through the expansion valve, reduced to a pressure that is prone to evaporation, and sent to the evaporator. In this evaporator, the refrigerant liquid is evaporated by external air blown by the evaporator blower installed on one side. As it does so, it absorbs external heat.

Accordingly, the cooling air that has lost its heat as it passes through the evaporator is discharged into the room to cool the room, and the evaporated refrigerant becomes a low-temperature, low-pressure gas and is sent to the compressor to repeat the above process.

Therefore, when the air conditioner installed as above is operated in the installed state, it continuously operates the compressor of the outdoor unit until it reaches a preset temperature, so it consumes a lot of power, the external temperature rises, and the outdoor unit overheats due to sunlight due to the structure placed outside. If this happens, there are problems such as a decrease in the cooling capacity of the outdoor unit.

The existing prior art applied to solve the above problems is installed on the upper panel of the outdoor unit, as disclosed in Korean Patent Publication No. 10-2020-112250 “Air conditioner outdoor unit cooling device” (publication date: 2020.10.05) It is a cooling device that sprays coolant to the outdoor unit without power, and includes a water tank mounted on the upper panel of the air conditioner outdoor unit to accommodate the coolant; a spray device that receives coolant from the water tank and sprays the coolant to the outdoor unit; and a sunshade attached to the water tank to form a shade to block the outdoor unit from sunlight.

Other prior technologies related to cooling of existing outdoor units include condensation generated in the indoor unit of the air conditioner, as disclosed in Korean Patent Publication No. 10-2015-67551, “Outdoor unit evaporation cooling system of thermoelectric element air conditioner” (publication date: 2015.06.18) By supplying water to the upper part of the outdoor unit and evaporating it, hot water in the coolant can be effectively cooled with a small amount of power consumption.

However, the above prior art cools the outdoor unit by supplying condensation water generated from the indoor unit to a tray-shaped sump provided on the upper side of the outdoor unit and vaporizing it using the heat generated from the outdoor unit. However, in this case, If the amount of condensation water generated in the indoor unit is small, it is difficult to expect a cooling effect from the outdoor unit. Not only does the cooling efficiency of the outdoor unit decrease because the cooling area in contact with the condensation water on the outdoor unit is small, but also foreign substances such as dust are removed due to the structural characteristics of the external unit. As condensation accumulates in the water sump, it is easily contaminated and has the disadvantage of being unsightly.

In addition, if heat and hot air leak out to the outside through the existing outdoor unit and come in direct contact with pedestrians, there is a risk that pedestrians will feel uncomfortable, and there is a disadvantage in that the heat generated from the outdoor unit increases the air temperature, causing the heat island phenomenon.

Korean Patent Publication No. 10-2020-112250 “Air conditioner outdoor unit cooling device” (Publication date: 2020.10.05) Korean Patent Publication No. 10-2015-67551 “Outdoor unit evaporation cooling system of thermoelectric element air conditioner” (Publication date: 2015.06.18)

The present invention was created to solve the above-mentioned problems, and its purpose is to prevent overheating of the outdoor unit by cooling the outdoor unit by spraying the water in the water tank toward the outdoor unit at high pressure through a nozzle equipped with a spray head. The air conditioner cooling efficiency can be improved, the temperature around the outdoor unit can be lowered to lower the urban heat island index raised by the heat emitted from the outdoor unit, and the structure has been improved to collect fine dust contained in the outdoor air around the outdoor unit. The purpose is to provide a cooling and fine dust collection device for the outdoor unit of an air conditioner.

Another object of the present invention is to automatically supply water from the water tank to the nozzle side and spray it to the outdoor unit according to the temperature around the outdoor unit detected using a temperature sensor, and to spray water according to the temperature detected by the temperature sensor and the spray set in the control unit. The purpose is to provide a cooling and fine dust collection device for the outdoor unit of an air conditioner with an improved structure that optimizes water usage and reduces water waste by automatically setting the spray cycle according to time and spray cycle.

Another object of the present invention is to provide cooling and fine dust for the outdoor unit of an air conditioner whose structure has been improved to improve the cooling effect of the outdoor unit sprayed at high pressure toward the outdoor unit by adjusting the spacing between the plurality of injection nozzles to suit the site type. The goal is to provide a collection device.

The present invention for achieving the above object includes a water tank installed close to the outdoor unit, provided with a raw water inlet on one side to supply spray water inside, and equipped with a pump for pumping the spray water to the outside; a supply pipe with one end connected to the upper part of the water tank and the other end disposed to pass through the upper side of the outdoor unit for supplying spray water pumped from the pump; a plurality of supports mounted on an upper side of the outdoor unit and having an upper surface supporting a lower portion of the supply pipe; and a plurality of spray nozzles connected to the supply pipe and provided with a spray head to receive the spray water and spray the spray toward the outdoor unit.

It further includes a temperature sensor that detects the ambient air temperature of the outdoor unit and outputs the sensed information to the control unit, and a control unit that controls the operation of the nozzle based on the information from the temperature sensor.

It is further provided with a fine dust detection sensor that measures the fine dust concentration around the outdoor unit and outputs the measured fine dust concentration to the control unit.

The control unit further includes a timer that sets the spray time and spray cycle of the spray water sprayed through the spray head of the spray port to operate at a set time.

The support consists of a lower body whose lower surface is seated on the upper side of the outdoor unit and an upper body that is stackable and coupled to the upper side of the lower body, and is rounded to support the lower surface of the supply pipe on the upper side of the upper body. A true seating groove is formed, and elastic left and right clamping parts are formed on the upper side of the upper body to clamp and grip both left and right sides of the supply pipe.

The supply pipe is a plurality of first and second supply pipes of different lengths to adjust the spacing between the nozzles, and a connector connecting between the first and second supply pipes, between the first supply pipes, or between the second supply pipes. It is composed including.

The present invention can be recycled to cool the outdoor unit and collect fine dust by spraying the spray water stored in the water tank toward the outdoor unit through the supply pipe and nozzle, thereby improving the cooling performance of the air conditioner by preventing overheating of the outdoor unit. , it can reduce pedestrian discomfort and the urban heat island index by reducing the hot wind and heat emitted from the outdoor unit, and has the useful advantage of improving outdoor air quality by reducing fine dust.

The present invention uses a fine dust detection sensor and a temperature detection sensor around the outdoor unit to determine whether or not to operate the pump of the control unit, accurately determines the overheating of the outdoor unit and the concentration of fine dust in the air and sprays spray water. In addition, the timer and the control unit It has the advantage of reducing the waste of spray water by optimizing water usage by setting the spray time and spray cycle of the spray water sprayed toward the outdoor unit.

1 is a block diagram schematically showing the configuration of an embodiment of a cooling and fine dust collection device for an air conditioner outdoor unit according to the present invention.
Figure 2 is a state of use showing the cooling and fine dust collection device of the air conditioner outdoor unit of the present invention applied.
Figure 3 is a diagram showing the supply piping of the present invention.
Figure 4 is an exploded perspective view of the support of the present invention.
Figure 5 is a front view showing the combined state of the support and supply pipe of the present invention.

In describing the present invention, if it is determined that specific descriptions of related known technologies or configurations may unnecessarily obscure the gist of the present invention, detailed descriptions thereof will be omitted. The terms described below are terms defined in consideration of functions in the present invention and may vary depending on the user's intention or custom. Therefore, the definition should be made based on the contents throughout this specification. In addition, 'including' a certain component does not mean excluding other components, but may include other components, unless specifically stated to the contrary.

When described with reference to FIGS. 1 to 5, the cooling and fine dust collection device for the outdoor unit of an air conditioner according to the present invention is installed in a position close to the outdoor unit 10 and has a raw water inlet 110 on one side to supply spray water inside. A water tank (100) provided with a pump (150) for pumping the spray water to the outside; a supply pipe (200) with one end connected to the upper part of the water tank (100) and the other end disposed to pass through the upper side of the outdoor unit (10) for supplying spray water pumped from the pump (150); A plurality of supports 300 mounted on the upper side of the outdoor unit 10 and the upper surface of which is provided to support the lower part of the supply pipe 200; and a plurality of spray nozzles 250 connected to the supply pipe 200 and provided with a spray head 255 to receive the spray water and spray the spray toward the outdoor unit 10.

When explained with reference to FIGS. 1 and 2, the water tank 100 is placed in a surrounding place (outdoors, such as a rooftop) where the outdoor unit 10 is installed, and the spray water is introduced into the inside through the raw water inlet 110 provided on one side. It is supplied and stored, and a drain 120 is provided at the lower part of the other side to drain the spray water in the water tank 100 to the outside to prevent freezing in winter.

In addition, the water tank 100 is provided with a connection pipe 140 at the top for connecting the supply pipe 200, and the connection pipe 140 and the supply pipe 200 are separated by a threaded union. Or it has a connected structure.

The water tank 100 is equipped with a pump 150 inside to pump the spray water inside the supply pipe 200 through the connection pipe 140, and has a ball top for controlling the water level to prevent overflow. (130) is installed.

In addition, a control unit 400 is provided to control the supply of spray water in the water tank 100 and the pressure conveying operation using the pump 150.

The present invention includes a temperature sensor 410 that detects the temperature around the outdoor unit 10 and outputs the detected temperature information to the control unit 400, and a temperature sensor 410 that detects the concentration of fine dust around the outdoor unit 10 and provides the detected fine dust information. By further providing a fine dust detection sensor 420 that outputs output to the control unit 400, the control operation of the control unit 400 is assisted.

The control unit 400 automatically outputs a control signal to operate the pump 150 when the temperature around the outdoor unit 10 becomes higher than the set temperature value.

In addition, the control unit of the present invention further includes a timer 430 that sets the operation time of the injection hole 250.

The timer 430 assists the control of the controller 400 to limit the spray time and spray cycle of the spray water sprayed through the spray head 255 of the spray port 250 to a set time, thereby controlling the outdoor unit 10. Considering that when a water film occurs due to spraying of spray water on the upper side, the evaporation rate decreases and the temperature reduction effect due to water evaporation decreases, the spraying of spray water is stopped again after water is sprayed for a certain period of time to optimize water usage. This helps reduce water waste. For example, spray water can be sprayed by stopping at intervals of 1 minute 30 seconds to 1 minute 45 seconds and running for 15 seconds.

The supply pipe 200 has a structure in which one end, which is the lower end, is connected to the connection pipe 140 by a union, is bent to extend upward, and then extends in the horizontal direction at a height spaced apart from the upper side of the outdoor unit 10. have

In addition, as shown in FIGS. 2 and 3, the supply pipe 200 includes a plurality of first and second supply pipes 210 and 220 of different lengths to adjust the spacing between the injection nozzles 250, and the first, 2. It includes a connector (230) connecting the supply pipes (210, 220).

The length L1 of the first supply pipe 210 is formed to be shorter than the length L2 of the second supply pipe 220 (L1 < L2), and the first and second supply pipes 210 and 220 each have a nozzle ( 250) is provided to branch to the upper side.

The connector 230 has a function of connecting the first and second supply pipes 210 and 220, between the first supply pipes 210, or between the second supply pipes 220 to enable communication.

For this reason, the supply pipe 200 of the present invention connects the first and second supply pipes 210 and 220 of different lengths with the connector 230 to suit the situation around the site according to the arrangement of the outdoor unit 10, thereby providing the first ,2The spacing between the injection nozzles 250 can be adjusted depending on the arrangement of the supply pipes 210 and 220.

The spray port 250 is connected to branch to the upper side of the supply pipe 200, and sprays spray water at high pressure to improve the cooling effect by contacting the spray water with a large contact area on the outdoor unit 10 side at the top. A spray head 255 is provided.

As shown in FIG. 4, the support 300 includes a lower body 310 with a rectangular cross-sectional structure whose lower surface is seated on the upper side of the outdoor unit 10, and is optionally located on the upper side of the lower body 310. It consists of an upper body 320 that is stacked and has a seating groove 325 formed in a concave and rounded shape so that the lower part of the supply pipe 200 is seated thereon.

As shown in FIG. 4, the upper body 320 is formed with elastic left and right clamping parts 332 and 334 on the upper side to clamp and grip both left and right sides of the supply pipe 200.

As shown in FIGS. 4 and 5, the left and right clamping parts 332 and 334 protrude upward in a structure that is symmetrical to each other on both left and right sides of the seating groove 325, and the width of the upper side facing each other is the lower side. It is provided to be narrower than the side width, and when the supply pipe 200 is clamped, the upper width spreads and returns by elastic restoring force to grip the left and right sides of the supply pipe 200. make it possible

The lower body 310 of the support 300 is selectively coupled to be interposed between the lower side of the upper body 320 and the outdoor unit 10 according to the height interval between the supply pipe 200 and the outdoor unit 10.

In the present invention having this configuration, the water tank 100 is mounted on the floor around the outdoor unit 10, and the supply pipe 200 is connected to the connection pipe 140 provided at the top of the water tank 100 through a union. .

The supply pipe 200 is connected from the lower water tank 100 to the upper side of the upper outdoor unit 10, and as described above, the first and second supply pipes have different lengths depending on the spacing between the outdoor units 10. The spacing of the injection nozzles 250 can be adjusted using (210,220).

A connecting pipe 140 is provided at the top for connecting the supply pipe 200, and the connection pipe 140 and the supply pipe 200 have a structure in which they are separated or connected by a threaded union.

The supply pipe 200 is supported at a certain height from the upper side of the outdoor unit 10 by a support 300 so as to be connected to the upper side of the outdoor unit 10.

Since the support 300 is composed of upper and lower bodies 320 and 310 stacked upward and downward, the upper body 320 is used alone according to the height gap between the upper side of the outdoor unit 10 and the supply pipe 200. Alternatively, the lower part of the supply pipe 200 can be supported with the upper and lower bodies 320 and 310 stacked top and bottom.

As shown in Figure 5, the clamping combination of the supply pipe 200 and the support 300 is such that the supply pipe 200 is connected to the left and right clamping parts 332 and 334 from the upper side to the lower side of the upper body 320. When the lowering operation is performed to enter the gap, the upper widths of the left and right clamping parts 332 and 334 facing each other spread outwardly, and the supply pipe 200 is seated in the seating groove 325, and the supply pipe ( After 200) is seated in the seating groove 325, the upper widths of the left and right clamping parts 332 and 334 facing each other return to their original positions due to the restoring elastic force, so that the left and right sides of the outer peripheral surface of the supply pipe 200 The area is clamped and held.

Afterwards, spray water, which is raw water, is supplied and stored inside the water tank 100 through the raw water inlet 110, and the temperature around the outdoor unit 10 becomes higher than the temperature value set in the control unit 400. In this case, the control unit 400 outputs a control signal to operate the pump 150.

The pump 150 is automatically driven by a control signal from the controller 400 and pumps the spray water in the water tank 100 into the supply pipe 200.

While the spray water pumped by the pump 150 is supplied to the upper side of the outdoor unit 10 through the supply pipe 200, the spray nozzle 250 and the spray head ( The spray water is misted through 255) and sprayed onto the upper side of the outdoor unit 10 to cool the outdoor unit 10.

In addition, the present invention further includes a fine dust detection sensor 420, wherein the fine dust detection sensor 420 detects the concentration of fine dust in the air around the outdoor unit 10 and sends the detected fine dust information to the control unit 400. As output, the control unit 400 outputs a control signal to automatically drive the pump 150 when a value higher than the set fine dust concentration value is detected to reduce the fine dust concentration in the air around the outdoor unit 10. The spray water is sprayed like this.

The present invention detects the air temperature around the outdoor unit 10, and when the temperature rises above the reference value, it automatically operates the pump 150 in the water tank 100 to send spray water through the supply pipe 200 through the nozzle ( Since the outdoor unit 10 can be cooled by supplying it to the 250 side and spraying it to the upper side of the outdoor unit 10 through the spray head 255 of the nozzle 250, the outdoor unit 10 can be cooled by cooling the outdoor unit 10 as described above. It is possible to prevent the air conditioner's cooling effect from deteriorating when overheating, thereby improving the air conditioner's cooling efficiency and reducing power energy usage, and has the advantage of reducing the heat island phenomenon by reducing the heat emitted from the outdoor unit 10.

In addition, since the supply pipe 200 of the present invention is supported by a support 300 on the upper side of the outdoor unit 10, sagging of the supply pipe 200 can be prevented, and the support composed of the upper and lower bodies 320 and 310 Due to the structural characteristics of (300), it is possible to selectively stack and combine the upper and lower bodies (320, 310) according to the height gap between the supply pipe (200) and the upper side of the outdoor unit (10), allowing work on the supply pipe (200). Convenience can be increased.

In addition, the upper body 320 of the support 300 of the present invention has a seating groove 325 on the upper side where the supply pipe 200 is seated, which is formed in a round groove shape, and has grooves on both left and right sides of the seating groove 325. Since the left and right clamping parts 332 and 334 protruding upward are provided, it has the advantage of clamping to prevent the supply pipe 200 from being separated.

In addition, the support 300 is not designed to fix the supply pipe 200, but rather seats the supply pipe 200 on the upper side of the seating groove 325, using the left and right clamping parts 332 and 334. Since it is a support method that prevents the upward separation of the supplied supply pipe (200), it is not only free from clearance, but also minimizes the shock generated during high-pressure injection by the pump and transmitted to the supply pipe side, and the high temperature from the outside is minimized. As it is delivered, it is possible to prevent excessive pressure and load from occurring in a specific area due to the thermal expansion rate of the supply pipe 200, thereby preventing failure factors such as cracks.

Therefore, the present invention can be recycled for cooling the outdoor unit 10 and collecting fine dust by spraying the spray water from the water tank 100 toward the outdoor unit 10 through the supply pipe 200 and the spray hole 250. Therefore, the air conditioner cooling performance can be improved by preventing overheating of the outdoor unit 10, and the surrounding temperature of the outdoor unit 10 can be lowered by reducing the hot wind and heat emitted from the outdoor unit 10, thereby reducing discomfort for pedestrians and reducing the outdoor unit 10. It can lower the urban heat island index, which is rising due to (10), improve outdoor air quality by reducing fine dust, and improve the durability of the product by preventing fine dust from entering the inside of the outdoor unit (10). It has an advantage.

In addition, in the present invention, when determining whether to operate the pump 150 of the control unit 400 using the fine dust detection sensor 420 and the temperature detection sensor 420 around the outdoor unit 10, overheating of the outdoor unit 10 and In addition to accurately determining the concentration of fine dust in the air and spraying the spray water, the timer 430 and the control unit 400 are used to set the spray time and spray cycle of the spray water sprayed toward the outdoor unit 10. ) has the advantage of reducing the waste of spray water by optimizing the amount of water used for cooling.

As such, in the detailed description of the present invention, specific embodiments have been described, but of course, various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by the claims and equivalents thereof as well as the claims described later.

In other words, the present invention described above is not limited to the specific preferred embodiments described above, and anyone skilled in the art to which the invention pertains can use it without departing from the gist of the present invention as claimed in the claims. Of course, various modifications and implementations are possible, and such modifications are within the scope of the claims.

10: Outdoor unit 100: Water tank
110: raw water inlet 120: drain
130: Ball top 140: Connection pipe
150: Pump 200: Supply piping
210: first supply pipe 220: second supply pipe
230: Connector 250: Nozzle
255: Spray head 300: Support
310: lower body 320: upper body
325: Seating groove 332,334: Left and right clamping parts
400: Control unit 410: Temperature sensor
420: Fine dust detection sensor 430: Timer

Claims (6)

A water tank (100) installed in a position close to the outdoor unit (10), provided with a raw water inlet (110) on one side to supply spray water inside, and equipped with a pump (150) for pumping the spray water to the outside;
a supply pipe (200) with one end connected to the upper part of the water tank (100) and the other end disposed to pass through the upper side of the outdoor unit (10) for supplying spray water pumped from the pump (150);
A plurality of supports 300 mounted on the upper side of the outdoor unit 10 and the upper surface of which is provided to support the lower part of the supply pipe 200; and
Cooling of the outdoor unit of the air conditioner, characterized in that it is provided with a plurality of nozzles (250) connected to the supply pipe (200) and provided with a spray head (255) to receive the spray water and spray it toward the outdoor unit (10). and fine dust collection device. In claim 1,
A temperature sensor 410 that detects the ambient air temperature of the outdoor unit 10 and outputs the detected information to the control unit 400,
A cooling and fine dust collection device for an air conditioner outdoor unit, further comprising a control unit 400 that controls the operation of the nozzle 250 based on information from the temperature sensor 410. In claim 1 or claim 2,
Cooling and fine dust collection device for the outdoor unit of an air conditioner, further comprising a fine dust detection sensor 420 that measures the fine dust concentration around the outdoor unit 10 and outputs the measured fine dust concentration to the control unit 400. . In claim 1 or claim 2,
The control unit 400 further includes a timer 430 that sets the spray time and spray cycle of the spray water sprayed through the spray head 255 of the spray port 250 to operate at a set time. Outdoor cooling and fine dust collection device. In claim 1,
The support 300 consists of a lower body 310, the lower surface of which is seated on the upper side of the outdoor unit 10, and an upper body 320 that is stackable and coupled to the upper side of the lower body 310,
A rounded seating groove 325 is formed on the upper side of the upper body 320 to support the circumference of the lower surface of the supply pipe 200,
A cooling and fine dust collection device for an air conditioner outdoor unit, characterized in that elastic left and right clamping parts 332 and 334 are formed on the upper side of the upper body 320 to clamp and grip both left and right sides of the supply pipe 200. . In claim 1,
The supply pipe 200 includes a plurality of first and second supply pipes 210 and 220 of different lengths to adjust the spacing between the injection nozzles 250,
Cooling of the outdoor unit of the air conditioner, characterized in that it includes a connector 230 connecting between the first and second supply pipes 210 and 220, between the first supply pipes 210, or between the second supply pipes 220. and fine dust collection device.

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