JPH0510167Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application] The present invention relates to an air conditioner water heater, a so-called appliance that combines an air conditioner and a water heater, and relates to improvements when this appliance is installed outdoors.

[Prior art and its problems] The capacity of recent air conditioners (hereinafter referred to as air conditioners) has increased, and along with this, the configuration of the equipment has changed to generate cold air or hot air indoors. It is of a so-called separate type, in which the indoor unit and the outdoor unit, which has a function of generating cold or heat, are separated.

On the other hand, there is also a trend towards larger water heaters.
BACKGROUND ART There has been a shift from small water heaters (water heaters) that are installed indoors to outdoor water heaters that are installed outdoors.

When these appliances are installed in an apartment complex, the outdoor units of air conditioners and water heaters are often placed centrally in specific outdoor locations. This is to make the living space as wide as possible, to minimize the space occupied by outdoor equipment, and to treat exhaust hot air etc. centrally throughout the housing complex.

Therefore, especially in apartment complexes such as those mentioned above,
A composite appliance that integrates an air conditioner and a water heater is desired.

The object of the present invention is to satisfy such requirements and to suppress the temperature of the exhaust air from the water heater to a low level, thereby preventing an adverse effect on the outdoor area when the exhaust air is concentrated.

[Technical Means] The technical means of the present invention taken to solve the above problems is as follows. The heat exchanger 30 is housed in a combustion chamber 31 in the section 3, and an exhaust pipe 32 connected to the combustion chamber 31 is opened in the side wall 11 of the casing 1 and communicated with the open end of the exhaust pipe. A fan 21 for heat radiation or heat absorption of the outdoor functional section 2 is provided in the casing chamber, and this fan 21 is brought into operation when hot water is supplied.

[Operation] The above technical means of the present invention operates as follows.

Indoor air conditioning is performed by an indoor unit, that is, a terminal device, associated with the outdoor function section 2 of the air conditioner inside the casing 1. In addition, for the hot water supply required in the home, the heat exchanger 30 of the hot water supply function section 3 is activated by the operation of the hot water supply function section 3 inside the casing 1.
The hot water at the desired temperature that has passed through can be taken out from the faucet of the hot water supply circuit that has been piped in advance.

In this way, all of the air conditioning heat sources and hot water required in the home are supplied by each functional unit housed within one casing.

In addition, when the hot water supply function section 3 is in the operating state, the combustion exhaust in the combustion chamber 31 is discharged to the outside of the casing 1 via the exhaust stack 32, but at this time, the fan 21 is in the operating state. Therefore, the exhaust gas from the exhaust pipe is discharged to the outside of the casing 1 together with the cold air supplied from the fan 21 or the air whose temperature has not risen to a high temperature.

Therefore, the temperature of the combustion exhaust becomes lower than that in the case where the combustion exhaust from the combustion chamber 31 passes through the heat exchanger 30 and is directly discharged.

[Effects] Since the present invention has the above configuration, it has the following unique effects.

Each functional unit housed within a single casing supplies all the heat sources and hot water required for air conditioning in the home, further improving the integration of appliances and making more effective use of outdoor space. The Rukoto. The above effect becomes even more remarkable when a pipe shaft in an apartment complex is used as the installation location for the appliance.

Compared to the case where the combustion exhaust from the combustion chamber 31 passes through the heat exchanger 30 and is directly discharged, the temperature of the combustion exhaust is lower, so when the appliance is installed outdoors in a detached house, the exhaust This also alleviates the inconvenience that this can have on plants such as shrubs. Furthermore, when the exhaust discharge section faces the passageway side of an apartment complex, it is possible to prevent inconveniences such as high-temperature wind blowing onto passersby.

[Example] Hereinafter, an example of the present invention will be described based on FIGS. 1 to 3.

In the illustrated embodiment, a hot water supply function and a cooling/heating function are housed in a casing 1.The interior of the casing 1 is divided into two chambers, one of which is a first empty chamber The outdoor function section 2 is housed in the second empty room 12, and the hot water supply function section 3 is housed in the other second vacant room 12.

The outdoor function section 2 of this embodiment includes a compressor 22, an accumulator 23, a radiator 24, a switching valve 25 for switching the heat medium circuit, and a heat absorption heat exchanger 26 for heating. vessel 26
A system in which heat generated by combustion of a gas burner is exchanged with a heat medium is adopted, and exhaust gas from a heating chamber 27 is guided to an exhaust gas collection chamber 5 through an exhaust pipe 28.

Therefore, during cooling, this outdoor function section 2 circulates through the circuit shown by the broken line in the figure, and cold air can be taken out from the terminals 41, 41. At this time, the circuit passing through the endothermic heat exchanger 26 is cut off, and the gas burner in the heating heating chamber 27 is placed in a stopped state.

During heating, the gas burners in the endothermic heat exchanger 26 and the heating heating chamber 27 are in operation, and the switching valve 25 is switched to the state shown by the solid line in the figure to transfer the heat absorbed in the endothermic heat exchanger 26. However, heat is radiated in the terminals 41, 41, and hot air is blown out from these terminals 41, 41.

On the other hand, the second empty chamber 12 accommodates a hot water supply function section 3, but the water heater of this embodiment is of a hot water pouring type, and hot water is supplied from a hot water supply circuit 34 connected to a heat exchanger 30. The circuit 33 branches, and this hot water filling circuit 33 is directly connected to the bathtub 42, and the other circuit is connected to a hot water faucet 43 in the kitchen, washroom, etc.

Note that this water heater is a pre-stop type water heater and is also equipped with a so-called proportional valve type temperature control device, which detects the temperature on the outlet side of the heat exchanger 30 and adjusts the temperature and setting accordingly. The combustion amount of the gas burner in the combustion chamber 31 is controlled by comparison with the temperature.

Further, a water flow switch _S1 is inserted into the inlet side of the heat exchanger 30 as a water flow detection means, and this water flow switch _S1 determines whether the hot water filling operation has started or the hot water supply operation has started. can be detected. In any of the above states, the heat exchanger 3
This is because a water flow occurs in the water circuit via 0.

In this embodiment, the operation of the hot water supply function section 3 proceeds in accordance with the signal from the water flow switch _S1 , and a known configuration is used for this purpose.

In order to put the fan 21 into operation when the water heater is in operation, a configuration is adopted in which the signal from this water flow switch _S1 is used as an input signal, as shown in Fig. 2. , a water flow switch S ₁ is inserted into the drive circuit of the relay R ₁ , and when this water flow switch S ₁ detects water flow and closes, the output activates the relay R ₁ and closes its output contact. As a result, the fan 21 becomes conductive.

In this embodiment, the fan 21 is of course conductive and in operation during the cooling operation and the heating operation, and the switch S ₂ related to the operation for the cooling operation and the heating operation is inserted into the circuit of the fan 21. ing. Therefore, in the case of the above-mentioned embodiment in which the heating heating chamber 27 for heating is provided on the side of the outdoor function section 2, even when the gas burner in the heating heating chamber 27 for heating comes into operation in the heating operation state, the fan 21 operates to dilute the exhaust heat with the air blown from the fan 21.

Next, an exhaust pipe 28 communicating with the heating heating chamber 27
As shown in FIG. 3, the exhaust pipe 32 communicating with the combustion chamber 31 is connected to the exhaust gas collecting chamber 5, which has an open discharge port T of the fan 21 and is connected to the side wall 31 of the casing 1. The exhaust outlet 51 of the exhaust gas collection chamber 5 faces the discharge outlet T and has a shutter-type opening.

Therefore, each exhaust gas is guided into the exhaust gas collection chamber 5 and exhausted from the exhaust outlet 51, but at this time,
Since it is discharged together with the air discharged from the fan 21, a suction force is applied at this time, and
The exhaust gas from the exhaust pipe 32 and the exhaust pipe 28 is smoothly discharged. In addition, the actions and effects described above can be obtained.

Next, in the above embodiment, the heating heating chamber 27
Although the outdoor function section 2 is provided with the following, it is also possible to replace the outdoor function section of the air conditioner with a heat pump type air-conditioning device. Furthermore, it goes without saying that the outdoor functional section of the air conditioner can be configured to have only a cooling function.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the embodiment of the present invention, Fig. 2 is an electric circuit diagram of the main part thereof, and Fig. 3 is a detailed diagram of the exhaust collecting section. Part, 3...
Hot water supply function section, 30... Heat exchanger, 31... Combustion chamber, 32... Exhaust pipe, 13... Side wall, 21... Fan.

Claims (1)

[Scope of utility model registration request] In one casing 1, an outdoor function section 2 of an air conditioner and a hot water supply function section 3 are housed, and this hot water supply function section 3 has a structure in which a heat exchanger 30 is housed in a combustion chamber 31, and a heat exchanger 30 is housed in a combustion chamber 31. An exhaust pipe 32 connected to 31 is opened in the side wall 13 of the casing 1,
This air-conditioning water heater is provided with a fan 21 for heat radiation or heat absorption of the outdoor functional section 2 in a casing chamber communicating with the open end of the exhaust pipe, and the fan 21 is activated when hot water is supplied.