JP2011252644A - Heat shield for air conditioner outdoor unit, and air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat shield for air conditioner outdoor unit in which exchange efficiency in outdoor unit can be improved with simple constitution, and an air conditioner including the same.SOLUTION: A heat shield 40 is mounted along an inlet 20a provided at the side plane for an air conditioner outdoor unit 20, and in the heat shield 40, water supply pipe arrangement 41 and water supply pipe arrangement 42 are coupled in the shape of frame. Heat shield seats 45 are arranged at the lower part of respective water supply pipe arrangement 42. For example, the heat shield seat 45 is formed by using nonwoven fabric, and has light shielding as well as heat shielding. In the lower part of the water supply pipe arrangement 41, it is connected to a tank 43 accumulating temporarily drain water. Drain water is supplied to the heat shield seats 45 passing through a pump 44 from a tank 43, and through the water supply pipe arrangement 41, 42.

Description

  The present invention relates to a heat shield for an air conditioner outdoor unit and an air conditioner.

Conventionally, an outdoor unit in an air conditioner is installed outdoors, and is often equipped with a heat shield (shading plate) that blocks direct sunlight and thereby reduces the temperature around the outdoor unit. For example, a conventional heat shield is formed using a plate-like member or the like, and is attached to the top surface or side surface of an outdoor unit (Patent Documents 1 and 2, etc.).
If a heat shield is attached to the outdoor unit and the outdoor unit is not exposed to direct sunlight, the temperature of the outdoor unit and its vicinity can be reduced, and the heat exchange efficiency of the condenser in the outdoor unit can be improved. be able to.

Japanese Patent Laid-Open No. 11-159809 JP 2006-145091 A

  However, the heat shields proposed in Patent Documents 1 and 2 are only intended to lower the temperature of the outdoor unit and its surroundings by blocking direct sunlight. As the temperature rises year by year due to the increase in temperature and the like, it is desired to improve the heat exchange efficiency in the outdoor unit more actively when considering such a state. Improvement of the heat exchange efficiency with the condenser in the outdoor unit also leads to a reduction in the load on the compressor in the air conditioner, which is also a demanded matter from the viewpoint of energy saving.

  The present invention has been made in order to solve the above-described problem, and includes a heat shield for an air-conditioning outdoor unit capable of improving heat exchange efficiency with a condenser in the outdoor unit with a simple configuration, and the same. An object is to provide an air conditioner.

In order to achieve the above object, the present invention employs the following configuration.
The heat shield for an air-conditioning outdoor unit according to the present invention is attached to the air-conditioning outdoor unit. And the heat shield for an air-conditioning outdoor unit according to the present invention is stretched in a state facing the air inlet provided on the side surface of the air-conditioning outdoor unit, and has a water-absorbing heat-shielding means and a heat-shielding means. And a moisture supply means for supplying moisture.

  The air conditioner according to the present invention has a configuration in which an outdoor unit and an indoor unit are inserted in a refrigerant circulation path, and is further provided with a heat shield attached to an intake port of the outdoor unit. Is provided. And in the air conditioning apparatus which concerns on this invention, the heat shield for air-conditioning outdoor units which concerns on the said invention is applied.

As described above, the heat shield for an air-conditioning outdoor unit according to the present invention includes the heat shield means having water absorption and the moisture supply means for supplying moisture to the heat shield means. For this reason, moisture is supplied to the heat shield means at least during the operation of the air conditioner, and the supplied moisture is temporarily retained in the heat shield means.
The “water absorption” in the above means that water is absorbed and retained for a certain period of time, and moisture is vaporized from the surface.

  In addition, since the heat shield for an air conditioner outdoor unit according to the present invention is attached to the air inlet in the air conditioner, the water retained by the heat shield means evaporates, and the principle of hammering water The temperature of the air to the intake port is reduced. Furthermore, when the heat shield for an air conditioner outdoor unit according to the present invention is used, moisture does not directly touch the air conditioner outdoor unit, so that the air conditioner outdoor unit is not rusted by moisture.

As described above, the use of the heat shield for an air-conditioning outdoor unit according to the present invention synergistically reduces the temperature of the outdoor unit by blocking direct sunlight and the temperature of the air by supplying moisture to the heat shielding unit. The effect can improve the heat exchange efficiency in the condenser of the outdoor unit.
Moreover, the heat shield for an air conditioner outdoor unit according to the present invention has a simple configuration in which water is supplied to the heat shield means.

Therefore, the heat shield for an air-conditioning outdoor unit according to the present invention has a simple configuration, and by attaching it to the outdoor unit, the heat exchange efficiency of the condenser in the outdoor unit can be improved.
Since the air conditioner according to the present invention includes the heat shield for an air conditioner outdoor unit, for the same reason as described above, it is possible to improve the heat exchange efficiency of the condenser in the outdoor unit.

It is a block diagram showing typically composition of air harmony device 1 concerning an embodiment. It is a perspective view (partly sectional drawing) which shows typically the composition of heat shield 40 concerning an embodiment. It is a perspective view which shows typically the structure of the heat shield 140 which concerns on a modification.

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. Note that the embodiment described below is used as an example in order to easily understand the structural features of the present invention and the effects obtained from the configuration, and the present invention is essentially The following contents are not limited at all except for the technical features.
[Embodiment]
1. Configuration of Air Conditioner 1 The configuration of the air conditioner 1 according to the present embodiment will be described with reference to FIG.

As shown in FIG. 1, the air conditioner 1 according to the present embodiment includes an indoor unit 10 provided indoors and an outdoor unit 20 connected to the indoor unit 10 by pipes 31 and 32. ing. In addition, the air conditioner 1 according to the present embodiment also includes a heat shield 40 attached to the intake port side of the outdoor unit 20. The heat shield 40 is connected to the indoor unit 10 by a pipe 33.
The indoor unit 10 includes a drain pan 11a attached to a lower portion of the evaporator 11 and an indoor fan 12 for taking indoor air into fins (not shown) of the evaporator 11. The pipe 33 for the heat shield 40 is connected to the drain pan 11a. Here, the refrigerant flows in the pipes 31 and 32, and the drain water from the drain pan 11 a flows in the pipe 33.

The outdoor unit 20 includes a compressor 21, a condenser 22 connected to the compressor 21, and an outdoor fan 23 that circulates air through the condenser 22.
The heat shield 40 is disposed on the air inlet side of the outdoor unit 20 and at a position that blocks sunlight, and thus has a function as a light shield. The air sent to the condenser 22 by the outdoor fan 23 has passed through the heat shield 40.

In the air conditioner 1, warm air in the room is cooled by passing between the fins of the evaporator 11. The fins of the evaporator 11 evaporate the refrigerant in the evaporator 11 and take heat away from the surroundings, thereby cooling the fins.
The refrigerant sent to the outdoor unit 20 through the pipe 31 is compressed by the compressor 21 and thereby changes from gas to liquid. The heat generated when changing from gas to liquid is cooled by radiating heat from the fins of the condenser 22 into the air, and the cooled refrigerant passes through the pipe 32 to the evaporator 11 of the indoor unit 10. Is returned.

2. Configuration of Heat Shutter 40 The configuration of the heat shield 40 will be described with reference to FIG.
As shown in FIG. 2, the heat shield 40 is arranged in a state along the intake port 20 a side of the outdoor unit 20. And as mentioned above, arrangement | positioning of the heat shield 40 and the outdoor unit 20 is made into the state by which the sunlight to the outdoor unit 20 is interrupted | blocked by the heat shield 40, and also has a light-shielding function as mentioned above.

As shown in FIG. 2, the heat shield 40 is provided so as to span between the two water supply pipes 41 and the two water supply pipes 31 extending in the Z-axis direction at intervals. And five water supply pipes 42. The five water supply pipes 42 are spaced apart from each other in the Z-axis direction, and a heat shield sheet 45 is disposed therebetween. The heat shield sheet 45 is made of, for example, a nonwoven fabric.
In the heat shield 40, a tank 43 for temporarily storing drain water is provided below the two water supply pipes 41. Between one water supply pipe 41 and the tank 43, there is no drain water. A pump 44 for pumping up the water supply pipe 41 is inserted.

As shown in the portion surrounded by the two-dot chain line at the bottom in FIG. 2, the drain water sent from the pipe 33 is temporarily stored in the internal space 43 a of the tank 43 and sent to the water supply pipe 41 by the pump 44.
As shown in the portion surrounded by the two-dot chain line at the top in FIG. 2, the drain water pumped up by the pump 44 passes through the hole 42 b formed in the lower side of the water supply pipe 42 from the inside of the water supply pipe 42. Leaks out so as to spread. The drain water is vaporized from the surface of the heat shield sheet 45 while flowing downward through the heat shield sheet 45. During this vaporization, the surrounding heat can be taken away (principle water principle), and the ambient temperature in the vicinity of the inlet 20a of the outdoor unit 20 can be lowered. And since the air cooled by vaporization of drain water will be sent into the capacitor | condenser 22 of the outdoor unit 20, high heat exchange efficiency is realizable.

In the present embodiment, the heat shield sheet 45 is made of non-woven fabric. However, any other material can be used as long as it can transmit air and can drain water. For example, a mesh sheet can be used.
Moreover, about the number of the water supply piping 41 and the water supply piping 42, it may be less than the form shown in FIG.

[Modification]
The structure of the heat shield 140 according to the modification will be described with reference to FIG. In FIG. 3, only the heat shield 140 and the outdoor unit 20 are illustrated, but other configurations of the air conditioner are the same as those in the above embodiment.
As shown in FIG. 3, the heat shield 140 according to this modification includes a frame 147 provided in a state surrounding the outer periphery of the outdoor unit 20, and two water supplies disposed on the intake port 20 a side of the outdoor unit 20. Five water supply pipes 142 provided so as to span between the pipe 141 and the two water supply pipes 141, and further, a heat shield sheet 145 provided on the lower side corresponding to each water supply pipe 142. And a tank 143 for temporarily storing drain water supplied to the water supply pipe 141. The tank 143 is placed on the top plate 146 supported by the frame 147.

As shown in FIG. 3, the tank 143 in the heat shield 140 is arranged at the upper part in the Z-axis direction than the outdoor unit 20, and the drain water once stored in the tank 143 is dropped by its own weight, It is supplied to the water supply pipe 142 and vaporizes from the heat shield sheet 145.
In the heat shield sheet 140 according to this modification, the pump 143 for pumping up drain water is not required like the heat shield 40 according to the above-described embodiment by disposing the tank 143 on the upper part of the outdoor unit 20. Further, it is further superior from the viewpoint of component cost and running cost.

Even when the heat shield 140 according to this modification is used, the temperature of the air supplied to the outdoor unit 20 is lowered due to vaporization of drain water in the heat shield sheet 145 of the heat shield 140. Therefore, it is effective to realize high heat exchange efficiency in the air conditioner.
[Other matters]
The above-described embodiments and modifications represent an example of the configuration of the present invention, and the present invention can be appropriately changed except for the essential part thereof.

For example, in the above-described embodiment and modification, a rigid pipe is assumed for the water supply pipes 41, 42, 141, 142 of the heat shields 40, 140, but it is not always necessary to use a rigid pipe. A pipe (tube) having flexibility can also be used.
Moreover, in the said embodiment and modification, although the heat insulation sheet 45,145 in the heat shield 40,140 is made into one layer structure, it is set as the double structure which opened the space | interval between each other, or more A multilayer structure can also be used. Thereby, it is possible to further improve the environmental temperature reduction performance due to the heat shielding property.

Further, in the path of the pipe 32 in FIG. 1, a higher heat exchange efficiency can be realized by providing a refrigerant compression section that compresses the refrigerant downstream of the condenser 22 in the refrigerant flow during cooling. The heat shields 40 and 140 can be provided between the condenser 22 and the refrigerant compressor. Thereby, higher heat exchange efficiency can be realized.
Furthermore, in the said embodiment and modification, although drain water from an outdoor unit was supplied to the heat shields 40 and 140, this invention is not necessarily limited to this. For example, tap water can be supplied to the tank of the heat shield, or a container filled with water can be attached at the time of specification. When assuming specifications at home, it is also preferable that a plastic bottle, a plastic tank, a plastic bucket, or the like can be used.

  INDUSTRIAL APPLICABILITY The present invention is useful for realizing a heat shield for an air conditioning outdoor unit and an air conditioner that are effective as a countermeasure against global warming.

1. Air conditioner 10. Indoor unit 11. Evaporator 12. Indoor fan 20. Outdoor unit 21. Compressor 22. Capacitor 23. Outdoor fan 31, 32, 33. Piping 40,140. Heat shield 41, 42, 141, 142. Water supply piping 43,143. Tank 44. Pump 45,145. Heat shield sheet 146. Top plate 147. flame

Claims (6)

A heat shield for an air conditioner outdoor unit attached to the air conditioner outdoor unit,
A heat shield means that is stretched in a state of being opposed to an air inlet provided on a side surface of the air conditioner outdoor unit and has water absorption;
Moisture supply means for supplying moisture to the heat shield means;
A heat shield for an air-conditioning outdoor unit. The heat shield for an air conditioner outdoor unit according to claim 1, wherein the heat shield means also has a light shielding property. The heat shield means includes a sheet member formed using a nonwoven fabric,
The moisture supply means has a pipe arranged from the moisture supply source to the upper part in the vertical direction of the sheet member,
3. The heat shield for an air conditioner outdoor unit according to claim 1, wherein the pipe is provided with one or a plurality of holes at positions adjacent to the sheet member. 4. The moisture supply means has a tank for receiving drain water from the air conditioning indoor unit,
The heat shield for an air conditioner outdoor unit according to claim 3, wherein drain water as the moisture is supplied from the tank to the pipe. The heat shield means includes a plurality of the sheet members,
The plurality of seat members are arranged in a state of being spaced apart from each other in the vertical vertical direction with respect to the air inlet of the air conditioner outdoor unit,
The heat shield for an air conditioner outdoor unit according to claim 3 or 4, wherein the pipes are arranged corresponding to each of the plurality of sheet members. In the air conditioner in which the outdoor unit and the indoor unit are inserted in the refrigerant circulation path,
The air conditioner characterized by the heat shield for air-conditioning outdoor units in any one of Claim 1 to 5 being attached with respect to the inlet port in the said outdoor unit.

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