JPS6330933Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement of a heat pump heater using an air heat source.

[Conventional technology]

BACKGROUND ART Air heat source heat pumps have conventionally been used to heat bathtubs as shown in FIG. 3 and hot water tanks as shown in FIG. 4. That is, in either case, as shown in FIG. 5, an evaporator 4, a compressor 13, a pressure reducing device 12, and a blower 5, each of which is formed by attaching a fin 4a to a bent pipe 4b, are housed, and the intake port 1 is also housed.
a. A casing 1 provided with an exhaust port 1b is installed outdoors, and the above-mentioned devices inside this casing 1 and the bathtub 1
6 and a condenser 14 disposed in a hot water storage tank 17 are connected by a refrigerant pipe 15.
When the refrigerant fluorocarbon sealed in the air is decompressed and expanded in the pressure reducing device 12 and vaporized in the evaporator 4, it takes away the heat of vaporization from the surroundings, that is, it collects heat from the intake air B, and then compresses it in the compressor 13, resulting in high temperature and high pressure. , the water 16a of the bathtub 16 or the hot water tank 17 is
The water 17a inside is heated by heat exchange. On the other hand, the cooled refrigerant is condensed and liquefied and returned to the pressure reducing device, where the process is repeated.

[Problem that the invention attempts to solve]

By the way, heat collection from the air in the conventional heat pump described above is only through forced air flow by the blower 5 that comes into contact with the evaporator 4, and is greatly influenced by the outside air temperature, and when the outside air temperature becomes low, the heat collection capacity decreases in proportion to this. Especially in winter, even if there is a lot of solar radiation, the outside temperature is low, so there is less energy that can be collected. On the other hand, even in winter, sunny places are warm and contain a considerable amount of energy, but conventional heat pump heaters have had the problem of not being able to utilize this solar energy effectively. Although it is possible to combine a solar collector as a method of collecting solar energy, this has the disadvantage that the equipment cost increases and is not economical.

In view of the above-mentioned problems, the present invention provides a heat pump heater that improves the heat collection efficiency of the evaporator without increasing the number of devices.

[Means for solving problems]

The present invention will be explained using FIG. 1 which corresponds to an embodiment.

A casing 6 that houses an evaporator 4, a compressor, a pressure reducing device, and a blower 5 and has an intake port and an exhaust port 6b and is installed outdoors, and a condenser disposed outside the casing 6. In a heat pump heating machine using an air heat source, one side of the casing 6 facing the evaporator 4 is constituted by a transparent body 2, and a plate body having a large number of ventilation holes 3b between the transparent body 2 and the evaporator 4. 3, a black part 3a is formed on the surface of the plate 3 facing the transparent body 2, and an intake port 6a is provided on the lower surface of the casing 6 below the interval between the transparent body 2 and the plate 3. The structure is as follows.

[Effect]

The transparent body 2 and the plate 3 formed with the black part 3a collect heat from the outside air through forced flow, as well as from solar energy (radiant heat) that passes through the transparent body 2 and is absorbed by the black part 3a of the plate 3. It can also collect heat.

Further, the intake port 6a provided on the lower surface of the casing 6 below the distance between the transparent body 2 and the plate body 3 acts to prevent warm air inside the casing 6 from escaping to the outside.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 and 2. Note that these drawings are all cross-sectional views of the casing, and illustrations of storage devices other than the evaporator and blower are omitted.

Reference numeral 2 designates a transparent body that forms one side of the casing 6 and allows sunlight A to enter. The material of the transparent body 2 is not limited as long as it has good light transmission and weather resistance, but glass, tempered glass, acrylic, polycarbonate, etc. are preferable, and the shape does not necessarily have to be flat. 4 is an evaporator housed in a casing 6 facing the transparent body 2; 3 is a heat collecting plate provided between the evaporator 4 and the transparent body 2; A black portion 3a is formed on the surface facing the transparent body 2 by any method such as painting, plating, or oxidation treatment. 6a is an air intake port provided on the lower surface of the casing 6 below the interval between the transparent body 2 and the plate body 3;
b is an exhaust port. Figure 2 shows an example in which the transparent body 2 is attached to the casing 8 with the lower side facing outward, and the incident angle of sunlight A is large in summer and small in winter, so the heat collection conditions are poor in winter. In order to make the transparent body 2 perpendicular to the direction of incidence of sunlight A and increase heat collection efficiency, the angle of inclination α is preferably about 60°.
7a is an intake port, and 7b is an exhaust port. In FIGS. 1 and 2, the plate 3 is provided with a large number of ventilation holes 3b so that air heated by the radiant heat from the black part 3a of the plate 3 flows toward the evaporator 4. .

When the casing configured as described above is installed with the transparent body 2 facing the sun and the blower is operated, not only the outside air flows in through the intake ports 6a and 7a, but also the outside air passes through the transparent body 2 and the black part of the plate body 3. Heat can also be collected from solar energy (radiant heat) absorbed by 3a, improving the heat collection ability of the heat pump. In the above embodiment, the intake ports 6a, 7a are connected to the casing 6,
7, but if the cross-section of the intake port on the bottom surface is insufficient due to the air volume, an additional intake port may be provided on the side or front transparent plate 2.

[Effect of idea]

As described above, the present invention comprises one side of the casing facing the evaporator made of a transparent body, a plate having a large number of ventilation holes between the transparent body and the evaporator, and A black part is formed on the surface facing the body, and an intake port is provided on the bottom surface of the casing below the gap between the transparent body and the plate, so in addition to collecting heat from the outside air by forced flow as in the past,
Heat can also be collected from solar energy (radiant heat) that passes through the transparent body and is absorbed by the black part of the plate, improving the heat collection efficiency of the evaporator, and it is economical as there is no need to enlarge or increase the size of the equipment itself. In addition, an intake port is provided on the bottom surface of the casing, and many ventilation holes are also provided on the heat collecting plate, making it difficult for the warmed air inside the casing to escape, and making it easier for this air to flow toward the evaporator. It has the effect of collecting heat.

[Brief explanation of the drawing]

1 and 2 are cross-sectional views of the casing of the heat pump heater according to the present invention. FIG. 3 is an explanatory diagram of heating a bathtub by a conventional heat pump heater, FIG. 4 is an explanatory diagram of heating a water heater by a conventional heat pump heater, and FIG. 5 is a perspective view of an evaporator. Explanation of symbols, 1...Casing, 1a...Intake port, 1b...Exhaust port, 2...Transparent body, 3...Plate body, 3a...Black part, 3b...Vent hole, 4...Evaporator , 4a...Fin, 4b...Pipe, 5...
Blower, 6, 7...Casing, 6a, 7a...
Intake port, 6b, 7b... Exhaust port, 12... Pressure reducing device, 13... Compressor, 14... Condenser, 15...
Refrigerant piping, 16...bathtub, 16a...water, 17...
...Hot water tank, 17a...Water, 18...Water supply pipe, 19
...Hot water pipe, A...Sunlight, B...Air intake, C...
exhaust.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A casing that houses an evaporator, a compressor, a pressure reducer, and an air blower and has an intake port and an exhaust port and is installed outdoors, and a condenser installed outside the casing. In the air heat source heat pump heating machine, one side of the casing facing the evaporator is made of a transparent body, and a plate having a large number of ventilation holes is provided between the transparent body and the evaporator. , a heat pump heating characterized in that a black portion is formed on the surface of the plate body facing the transparent body, and the intake port is provided on the lower surface of the casing below the interval between the transparent body and the plate body. Machine. 2. The heat pump heating machine according to claim 1, wherein the transparent body is installed with its lower side facing outward.