JPH11132496A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a decrease in a heating performance at the time of lowering an atmospheric temperature, an increase in a size of a constituting equipment, an increase in a noise, increases in a man-hour and expenses of a mounting work in the air conditioner having a ventilating means for exhausting indoor contaminated air and introducing outdoor fresh air. SOLUTION: The air conditioner comprises a suction duct 12 and a supply duct 13 mounted via a hollow-out outer wall 4 and coupled via a supply and exhaust wind tunnel 14, and an interior and exterior switching door 22, a supply and exhaust switching door 35, a refrigerant heat exchanger 24, an air mixing door 30, a warm water heater core 26, an axial-flow blower 31 and the like constituted in the tunnel 14. Accordingly, controls of ventilation, temperature and humidity can be efficiently lightly executed by opening and closing the doors 22, 35, 30 and regulating their openings.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a highly airtight indoor space in consideration of a highly airtight and highly insulated house, etc., which is provided with an efficient ventilation function and is safe and dehumidifying when a flammable refrigerant is used. The present invention relates to an air conditioner for improving performance, heating performance, and heating efficiency.

[0002]

2. Description of the Related Art Conventionally, standard ventilators installed in houses are often of a type exclusively used for exhaust air. As a method of discharging contaminated air generated indoors to the outside, a ventilator or a fan installed through an outer wall is used. A range hood or a duct-type exhaust device provided with a suction port on the ceiling surface of the room has been used.

[0003] Regarding an air supply method for feeding fresh outdoor air into a room, generally, an air outlet is provided on a ceiling surface.
Based on an air supply device equipped with a blower that supplies fresh outside air indoors through a duct, the above-mentioned duct type exhaust device is combined, and as a duct type ventilation device, a heat pump type cooling and heating air utilizing the phase change of the refrigerant as a duct type ventilation device It was widely used by being incorporated into a harmony device.

In describing a heat pump type air conditioner incorporating a conventional duct type ventilation system, for example, Japanese Patent Application Laid-Open Nos.
FIG. 13 shows an outline of the basic configuration of an air conditioner disclosed in Japanese Patent No. 264092 as an example.

[0005] This device comprises an indoor 2 in which the interior of a house 1 is complicatedly partitioned by a ceiling 73, an indoor surface 5 of an outer wall 4, a floor 74 and the like.
It was equipped for the purpose of maintaining a comfortable environment by controlling the ventilation and cooling and heating of the air conditioner, and most of the devices constituting the device were installed behind the ceiling 73.

First, a method of supplying fresh outside air from the outside 3 to the indoor 2 will be described. The outside air of the outside 3 passed through the outside air entrance duct 75 and was taken into the exhaust device 77. The exhaust device 77 has a built-in exhaust blower 78 for discharging contaminated air generated in the room 2 and a total heat exchanger 79 for reducing heat loss in the room 2.

Here, the outside air of the outside 3 passing through the outside air entrance duct 75 exchanges heat with the exhausted indoor 2 air when passing through the total heat exchanger 79, and then connects to the connection duct. Through 80, it was sent to the air supply device 81.

The air supply device 81 has a dustproof filter 82 for removing dust from the outside air sent from the exhaust device 77 from the outside 3, a refrigerant heat exchanger 24 for cooling and heating the inside 2, and an outdoor device. Aspirate fresh fresh air from 3,
An indoor air blower 83 as a power source for sending the air into the indoor 2 was built in.

Further, a part of the front intake grill 86 for taking in the circulating air in the room 2 into the air supply device 81 is also provided so as to protrude from the ceiling 73 surface.

Therefore, the outside air outside 3 joins with the circulating air inside the room 2 sucked from the front intake grill 86, removes suspended matters and dust by the dust filter 82, and then adjusts the temperature by the refrigerant heat exchanger 24. The air has been delivered to the rear indoor blow-out duct 85 by the indoor air blower 83.

The air is supplied to the indoor 2 from the indoor outlet 84 attached to the tip of the indoor outlet duct 85.

Next, an air supply device 8 for cooling and heating the indoor 2
The refrigerant heat exchanger 24 in 1 was connected to the outdoor air conditioner 67 by the refrigerant connection pipe 66 through which the refrigerant 47 passed.

That is, the outdoor air conditioner 67 includes a compressor 42 for compressing the refrigerant, a four-way switching valve 45 for switching the flow of the compressed refrigerant during cooling and heating, and a radiator during cooling operation. An outdoor heat exchanger 43 acting as a heat absorber at the time of heating, an outdoor blower 49 acting effectively on its heat radiation and heat absorption, and an orifice 44 serving as a pressure reducing means for effectively reducing the pressure of the refrigerant are built in.

Therefore, the refrigerant heat exchanger 24 in the air supply device 81, the compressor 42, the four-way switching valve 45, the outdoor heat exchanger 43, the orifice 44, and the refrigerant connection pipe 66 in the outdoor air conditioner 67 are connected. A heat pump refrigeration cycle was configured.

First, during the cooling operation, the refrigerant 47 absorbed by the refrigerant heat exchanger 24 is drawn into the compressor 42 through the refrigerant connection pipe 66, and is compressed and discharged there. Pass through, outdoor heat exchanger 43
Had been sent to

The heat absorbed there was released outside by the outdoor blower 49. Refrigerant 47 that has finished releasing heat
Has been decompressed by the orifice 44 and returned to the refrigerant heat exchanger 24 again.

The flow of the refrigerant 47 during the heating operation forms a reverse circulation cycle during cooling. That is, the outdoor heat exchanger 43
The refrigerant 47 having absorbed the heat passes through the compressor 42 and the four-way switching valve 45 and reaches the refrigerant heat exchanger 24.

The absorbed heat is transferred to the refrigerant heat exchanger 24 there.
And the warm air was sent into the room 2.

Refrigerant 47 passing through refrigerant heat exchanger 24
Passes through the orifice 44 and returns to the outdoor heat exchanger 43 again.
Had been returned to.

By this cooling / heating operation, the temperature of the air in the room 2 was appropriately adjusted, and a comfortable environment was maintained.

An exhaust method for discharging air contaminated in the indoor 2 to the outdoor 3 will be described.
7 was sucked by the exhaust blower 78 from the indoor suction port 87 and sent to the total heat exchanger 79.

Therefore, heat is exchanged with the outside air taken in from the outside 3 through the outside air entrance duct 75, and then the heat is discharged to the outside 3 through the inside air discharge duct 76.

The control processing means 68 for controlling the operation of the above-described heat pump type air conditioner is built in an air conditioning controller 70 connected to each component by a connection harness 69.

An operation panel 71 for operating and stopping the heat pump type air conditioner and setting the environmental conditions of the indoor room 2 is also connected to the air conditioning controller 70 by a connection harness 69.

With this configuration, an appropriate signal is appropriately transmitted and received from the air-conditioning control unit 70, and the respective components are controlled and operated efficiently, so that the indoor 2
The environment was comfortably maintained.

[0026]

However, looking at recent trends in houses and their building materials, the spread of aluminum sashes and the like in even ordinary houses has created a highly airtight indoor environment. From a prospective perspective, very airtight houses such as high airtight and highly insulated houses that anticipate energy saving are emerging.

Although such a house is excellent in energy saving and heat insulation, it tends to use a lot of new building materials in the house, so indoor air is unknowingly unknowingly harmful such as formaldehyde. The pollution level is also increasing. Therefore, there is a need to significantly improve ventilation performance.

By the way, if it is attempted to use a conventional heat pump type air conditioner having a ventilation function as a ventilation means for such a house, the above-mentioned configuration has a well-known indoor airtightness. It is self-evident that the higher is the higher the ventilation resistance and the lower the ventilation.

To improve the ventilation performance, an indoor air supply blower built in the air supply device and an exhaust air blower provided in the exhaust device, an outside air entry duct, an inside air discharge duct,
It is necessary to increase the size of components such as a connection duct and an indoor outlet duct, or to increase the rotation speed of the blower.

In the case of increasing the size of the component parts, a large air supply device, a large exhaust device, an outside air entrance duct, an inside air exhaust duct, a connection duct, an indoor outlet duct, and the like are to be installed behind the narrow ceiling of the house. Therefore, the installation place is necessarily limited, which is extremely difficult from the viewpoint of weight and cost, and a smaller, lighter, and lower cost is required.

Therefore, as a remaining option, in reality, there is no action other than increasing the rotation speed of the indoor air supply blower, the exhaust blower, and the like. As a result, as a matter of course, indoors are bothered by the noise of these blowers and have caused an increase in power consumption. Therefore, there has been a strong demand for low noise and low power consumption.

In addition, even if the house is large enough to have a large-sized air supply device and exhaust device, and their respective ducts and the like installed above the ceiling, the conventional heat pump air conditioning and cooling air conditioner described above can be used. In the configuration, each of its components must be individually mounted on the ceiling,
As a result, much labor and huge construction costs are required, and therefore, improvement in installation workability has been required.

In addition, the use or regulation of Freon-based chemical substances used in refrigerants in recent years has been called out as substances causing destruction of the ozone layer and global warming, and natural refrigerants and the like have been attracting attention as alternative refrigerants. ing.

However, most of these natural refrigerants are flammable substances as seen in propane, butane and the like.
In the above-described conventional configuration, the hermeticity in the refrigeration cycle must be more strictly controlled in order to prevent the refrigerant from leaking from the refrigerant-based heat exchanger of the air supply device mounted above the ceiling. Since the cost and the construction cost are extremely high, low cost and simplification of the construction have been required.

In the conventional configuration, the lower the outside air temperature is, the smaller the amount of heat absorbed from the outdoor heat exchanger is, so that the heating capacity is reduced and the condensation temperature of the refrigerant heat exchanger is lowered. For this reason, the temperature of the airflow blown out from the indoor outlet to the inside of the room has also been lowered, and the indoor comfortable temperature has been significantly impaired. Therefore, improvements in heating performance and comfort have been required.

Further, in the conventional configuration, although the dehumidification at the time of cooling exhibits a sufficient performance, there is a difficulty in temperature control, and the temperature tends to be too cold. Conversely, the dehumidifying capacity during heating is insufficient,
Since it was extremely difficult to prevent dew condensation and mold on the indoor ceiling surface and inner wall surface, improvement in dehumidification performance while maintaining comfort was required.

Therefore, in order to improve the dehumidifying capacity, the refrigerant circulating in the heat pump refrigeration cycle including the refrigerant heat exchanger and the refrigerant connection pipe must be controlled in a complicated manner, resulting in a very high cost. Therefore, realization at low cost has been required.

The present invention solves the above-mentioned conventional problems, and is small in size and light in weight.
To reduce noise, increase power consumption, supply fresh outdoor air indoors, efficiently discharge indoor contaminated air to the outdoors in a short time, and form condensation on ceilings and walls. Air that can prevent heating and mildew, maintain the heating capacity without being affected by the outside temperature, improve the heating speed effect, and can be applied to flammable refrigerants relatively inexpensively in consideration of environmental issues. It is intended to provide a harmony device.

[0039]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides, on an indoor surface of an outer wall, a suction grill having an inside air filter and a suction port, and an air supply grill having a supply port, A suction duct opening to face the suction grill and an air supply duct opening to face the air supply grill are respectively mounted through the outer wall, and the suction duct and the air supply are provided on an outdoor surface of the outer wall. A supply / exhaust air tunnel device connected to a duct is attached, and the supply / exhaust air tunnel device includes an external air suction duct having an external air filter and an external air intake port near the intake duct, and an exhaust port near the air supply duct. An exhaust duct is attached, and the inside air flow and the outside air filter that are sucked through the intake duct from the room through the intake grill and the inside air filter into the air supply / discharge wind tunnel device. Inner and outer switching door for controlling respective intake amount of the outside air stream sucked through the outside air suction port from outside to, through the inner and outer switching door,
A refrigerant heat exchanger for transferring heat and removing humidity from an internal / external mixed air flow in which the internal air flow and the external air flow are mixed, and a temperature-adjusted air flow passing through the refrigerant heat exchanger passes through a hot water heater core. An air mixing door that distributes the hot air stream and a bypass air stream that passes through a bypass passage; an axial blower as a power source that mixes the hot air stream and the bypass air stream that have passed through the hot water system heater core and sends the mixture to the downstream; A supply / discharge switching door for switching a mixed airflow that has passed through the axial blower from the air supply grill through the air supply duct to the indoor air to be blown out from the air supply grille, and a discharge air flow to be discharged from the exhaust port to the outside through the air exhaust duct. It is configured.

By installing the air supply duct and the intake duct through the outer wall and installing the air supply / exhaust air tunnel unit, the external air intake duct, and the exhaust duct outside, the length of each duct is greatly reduced, and the ventilation A significant reduction in resistance is obtained.

In addition, the axial blower, which is a noise source, has a built-in air supply / discharge wind tunnel device installed outdoors.
Combined with the reduction in ventilation resistance, it is possible to reduce noise and reduce power consumption.

In addition, since the installation work of the components such as the air supply / exhaust air tunnel device can be generally performed outdoors, a new building can be easily installed in an existing house as well as an existing house. A significant reduction in time is obtained.

Further, by opening / closing the inside / outside switching door and the supply / discharge switching door in the air supply / exhaust air tunnel device by a simple operation, exhaust air for discharging indoor dirty air to the outside and fresh outdoor air for outdoor can be indoors. Either function of intake air supply can be exhibited, and efficient ventilation performance can be obtained together with reduced ventilation.

Further, by separately installing the refrigerant heat exchanger and the hot water heater core and installing an air mixing door between them, an independent cooling and heating source is used in combination, and the opening degree of the air mixing door is increased. The control provides individual cooling and heating control and automatic temperature and humidity adjustment.

[0045]

According to the first aspect of the present invention, a suction grill having an inside air filter and a suction port, and a supply grill having a supply port are installed on an indoor surface of an outer wall. A suction duct that faces and opens, and a supply duct that opens and faces the air supply grille are respectively mounted through the outer wall, and the suction duct and the air supply duct are connected to an outdoor surface of the outer wall. The air supply and exhaust air tunnel device is attached, an external air suction duct having an external air filter and an external air intake near the intake duct, and an exhaust duct having an exhaust air outlet near the air supply duct is attached to the air supply and exhaust air tunnel device. Inside the air supply / discharge wind tunnel device, the inside air flow sucked from the indoor through the suction duct through the suction grill and the inside air filter, and the outside air through the outside air filter. An internal / external switching door for controlling the respective intake amounts of the external air flow sucked through the air suction port, and passing through the internal / external switching door to transfer heat and remove humidity from an internal / external mixed air flow obtained by mixing the internal air flow and the external air flow. A refrigerant-based heat exchanger, an air-mix door that distributes a regulated airflow passing through the refrigerant-based heat exchanger to a hot airflow that passes through a hot water heater core and a bypass airflow that passes through a bypass passage, and the hot water heater core. An axial flow blower as a power source that mixes the hot air flow and the bypass air flow that have passed through the air blower, and blows out the mixed air flow that has passed through the axial flow blower from the air supply grill through the air supply duct to the room. A supply / discharge switching door for switching to a blown airflow and a discharge airflow discharged from the exhaust port to the outside through the exhaust duct. It is constructed by comprising a.

According to this structure, the air supply duct and the suction duct are attached to the outer wall so as to penetrate the outer wall, and the air supply / discharge air tunnel device, the outside air suction duct, and the air exhaust duct are installed outdoors, so that the respective duct lengths are greatly reduced. The length is reduced, and the ventilation resistance can be greatly reduced.

The axial flow blower, which is a noise source, also has a built-in air supply / discharge wind tunnel device installed outdoors.
Along with the reduction of the ventilation resistance, it is possible to reduce noise and reduce power consumption.

Also, since the installation work of the components such as the air supply / exhaust wind tunnel device can be generally performed outdoors, a new building can be easily installed in an existing house as well as an existing house. Can be greatly reduced.

Further, by simply opening and closing the inside / outside switching door and the supply / discharge switching door in the air supply / exhaust air tunnel apparatus, exhaust air for discharging dirty indoor air to the outside and fresh outdoor air for outdoor can be indoors. Both functions of intake air can be exhibited, and an efficient ventilation function can be possessed.

Further, by independently installing the refrigerant heat exchanger and the hot water heater core and mounting an air mixing door between them, an independent cooling source can be used together and the opening control of the air mixing door can be controlled. Thereby, individual cooling and heating control and automatic adjustment of temperature and humidity can be performed.

According to a second aspect of the present invention, a heat pump refrigeration cycle is constituted by a refrigerant heat exchanger, a compressor, an outdoor heat exchanger, and a pressure reducing means, and flammable as a working fluid in the heat pump refrigeration cycle. Containing a refrigerant having properties,
Refrigerant detection means is installed in the air supply / discharge air tunnel device, and when the refrigerant detection means detects the refrigerant, the supply / discharge switching door is closed, a signal for operating only the axial blower is transmitted, and the discharge airflow is discharged to the outside through the exhaust duct. An air control unit having a built-in control processing unit for blowing out air is provided.

According to this configuration, if a flammable refrigerant that does not affect the natural environment leaks from the refrigerant heat exchanger for any reason, the operation stops even if the compressor is operating. Even when the refrigerant is detected, the refrigerant can be prevented from staying in the air supply / discharge wind tunnel device and entering the room during the period when the refrigerant detection means is detecting the refrigerant.

According to a third aspect of the present invention, a heat pump type refrigeration cycle is constituted by a refrigerant heat exchanger, a compressor, an outdoor heat exchanger, a pressure reducing means, and a four-way switching valve. An outlet pipe, a circulation pump, and a heat source supply unit constitute a hot water system cycle, and a hot water temperature detection unit is provided in the hot water system cycle between the heat source supply unit and the hot water system heater core, and a temperature of the hot water in the hot water system cycle is provided. If the temperature is equal to or lower than the set temperature, a signal for switching the four-way switching valve so that the heat pump refrigeration cycle enters the heating operation until the hot water reaches the set temperature is transmitted, and the temperature of the temperature regulated airflow passing through the refrigerant heat exchanger is increased. And an air conditioning control unit incorporating control processing means for raising the temperature of the blown airflow blown indoors.

According to this configuration, the operation is controlled independently and in combination with the heat pump refrigeration cycle and the hot water system cycle. A decrease in the temperature of the airflow can be prevented by the hot water cycle, and a decrease in the heating speed effect at the start of the heating operation that occurs in the hot water cycle can be significantly improved by the heat pump refrigeration cycle.

According to a fourth aspect of the present invention, each stage of the axial blower is connected to the axial flow blade and the inclined blade in accordance with the ventilation resistance generated in the all-air circuit including the air supply / exhaust wind tunnel device and the airtightness of the room. It is characterized by being combined with a flow vane.

According to this configuration, according to the ventilation resistance generated in the all-air circuit including the air supply / exhaust wind tunnel device and the indoor airtightness,
Combination of optimal cascades, especially when large ventilation resistance is required, by using mixed flow blades with high static pressure rise, vortex generation and separation phenomena of hybrid air flow passing through each cascade Thus, an axial blower with low noise and high efficiency can be manufactured.

According to a fifth aspect of the present invention, a drive motor for an axial blower combined with a movable cascade and a stationary cascade, a shaft transmitting rotational motion to the movable cascade, and a portion near the tip of the shaft are supported. A shaft bearing is arranged, and according to ventilation resistance generated in a whole air circuit including an air supply / exhaust air tunnel device and indoor airtightness, a motor column fixing the drive motor and a bearing column fixing the shaft bearing are fixed to the stationary column. The blades are formed in a cascade, and each blade shape, the number of blades, the blade pitch, and the blade mounting angle are changed.

According to this configuration, according to the ventilation resistance generated in the all-air circuit including the air supply / exhaust wind tunnel device and the airtightness of the room,
Combination of optimal cascades, adopting airfoil shape as the blade shape, and unequally spaced blade pitch to prevent vortex generation and separation phenomenon of hybrid airflow passing through each blade row In addition, a low-noise and high-efficiency axial-flow blower can be manufactured by increasing the number of blades and increasing the blade mounting angle, thereby achieving a high static pressure and a high-efficiency axial-flow blower.

Further, by forming the motor support and the support support with a stationary blade row, the flow of the mixed air flow becomes smooth, and a low-noise and high-efficiency axial-flow blower can be manufactured.

[0060]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An air conditioner according to an embodiment of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIGS. 1 to 4 show a first embodiment of the present invention. Indoor surface 5 of outer wall 4
In addition, a suction grill 9 and an air supply grill 11 are provided. A suction grill 9 having a suction port 8 has a built-in inside air filter 7, and a supply grill 10 has an intake port 10 opened.

The outer wall 4 that partitions the indoor 2 and the outdoor 3 is provided with two holes penetrating the outer wall 4, and one hole is provided with a suction duct 12 opened at a position facing the suction grill 9. In the other hole, an air supply duct 13 is attached so as to open at a position facing the air supply grill 11.

The supply / discharge air tunnel device 14 is
The air supply duct 13 and the air supply duct 13 are connected to each other in a bridge manner. The inside of the air supply duct 13 forms one wind circuit, and the outer shell is attached to the outdoor surface 6 of the outer wall 4.

The outside air suction duct 17 is connected to the suction duct 1
The outside air filter 15 and the outside air suction port 16 are provided inside the air supply / exhaust wind tunnel device 14 near the inside 2.

The exhaust duct 19 is attached to the air supply / discharge wind tunnel device 14 near the air supply duct 13, and an exhaust port 18 is provided inside the exhaust duct 19.

In the air supply / exhaust air tunnel device 14, an inside / outside switching door 22, a refrigerant heat exchanger 24, and a hot water heater core 2 are provided.
6, a bypass passage 28, an air mixing door 30, an axial blower 31, a supply / discharge switching door 35, and a refrigerant sensor 48 as refrigerant detection means.

When the axial blower 31 is driven, the air in the room 2 passes through the suction port 8 and the inside air filter 7 to remove floating substances and dust from the air.
And is further sucked into the air supply / exhaust wind tunnel device 14 as the internal airflow 20.

Similarly, the outside air of the outside 3 is supplied to the outside air inlet 1
From 6, the air passes through the outside air filter 15, and after removing suspended matters and dust therefrom, enters the outside air suction duct 17, and is further sucked into the air supply / discharge wind tunnel device 14 as the outside air flow 21.

Therefore, the inner air flow 20 and the outer air flow 21 are
The intake amounts of the internal airflow 20 and the external airflow 21 are controlled by the opening degree of the inside / outside switching door 22, and enter the air supply / discharge air tunnel device 14.

That is, when the inside / outside switching door 22 is opened widely, the inside airflow 20 increases, and when it is opened small, the outside airflow 21 increases.

When the inside / outside switching door 22 is completely opened, the outside air suction duct 17 is closed, and only the inside air flow 20 enters the air supply / discharge wind tunnel device 14. On the contrary, when the inside air flow 20 is completely closed, the suction duct 12 is closed. Only the outside air flow 21 enters the supply / exhaust wind tunnel device 14.

When the inside air flow 20 and the outside air flow 21 pass through the inside / outside switching door 22, they are mixed with each other, and sent to the downstream refrigerant heat exchanger 24 as the inside / outside mixed air flow 23.

The internal / external mixed gas flow 23 is supplied to the refrigerant heat exchanger 24
When passing through, the transfer of heat and the removal of humidity are performed,
Thereafter, the air is sent downstream as a temperature-controlled airflow 25.

This temperature-regulated air flow 25 is
0, the hot air flow 27 passing through the hot water system heater core 26 and the bypass air flow 2 passing through the bypass passage 28
9 and the temperature is controlled by the degree of opening of the air mix door 30.

That is, when the air mix door 30 is opened, the bypass passage 28 is closed, and all the temperature-regulated airflows 25 pass through the hot water system heater core 26, so that they are sent downstream as high-temperature hot airflows 27.

Conversely, when the air mix door 30 is closed, the passage passing through the hot water system heater core 26 is closed,
5 is a bypass airflow passing through the bypass path, so that there is almost no temperature change.

By adjusting the opening of the air mix door 30, the hot air flow 27 passing through the hot water system heater core 26 and the bypass air flow 29 passing through the bypass passage 28 are mixed by a downstream axial blower 31 and temperature controlled. Thereafter, it is sent further downstream as a mixed airflow 32.

The mixed airflow 32 is distributed by the supply / discharge switching door 35 into a blown airflow 33 and a discharge airflow 34.

That is, when the supply / discharge switching door 35 is opened, the exhaust duct 19 is closed, so that the mixed airflow 32 becomes the blowout airflow 33, passes through the air supply duct 13 and passes through the air supply opening 10 of the air supply grill 11 to the indoor space. It is blown out to 2.

When the supply / discharge switching door 35 is closed, the air supply duct 13 is closed, so that the mixed air flow 32
4, passes through the exhaust duct 19, and is discharged from the exhaust port 18 to the outside 3.

When the inside / outside switching door 22 is opened and the supply / discharge switching door 35 is closed, as shown in FIG. 3, dirty air in the indoor 2 can be exhausted to the outdoor 3, and conversely,
When the inside / outside switching door 22 is closed and the supply / discharge switching door 35 is opened, fresh outside air from the outside 3 can be supplied to the indoor 2.

Further, if both the inside / outside switching door 22 and the supply / discharge switching door 35 are opened, the air in the indoor 2 is sucked in, the temperature and humidity are adjusted in the air supply / exhaust air tunnel device 14, and then the internal air is circulated back to the indoor 2 again. If both doors are closed, it is possible to prevent the air in the air supply / discharge wind tunnel device 14 from entering the indoor 2 only by discharging from the outdoor 3 to the outdoor 3.

Further, the intake duct 12 and the exhaust duct 13 having a length only capable of hollowing the outer wall 4 are connected to the supply / exhaust wind tunnel device 14.
By forming the all-air circuit by connecting the ducts, the length of each duct can be remarkably shortened, so that the length of the all-air circuit can be shortened, thereby greatly reducing the ventilation resistance.

Next, the respective configurations of the heat pump type refrigeration cycle 46 and the hot water system cycle 59 will be described with reference to FIG. 1, and the installation state thereof will be described with reference to FIG.

First, the heat pump refrigeration cycle 46 will be described. The refrigerant heat exchanger 24 provided in the supply / exhaust wind tunnel device 14 is connected to an outdoor air conditioner 67 through a refrigerant connection pipe 66.
It is connected with.

The outdoor air conditioner 67 houses a compressor 42, a four-way switching valve 45, an outdoor heat exchanger 43, an orifice 44 as a pressure reducing means, and an outdoor blower 49, and constitutes a heat pump type refrigerating cycle 46. The outdoor air conditioner 67 is installed on the flat ground of the outdoors 3 as in the conventional case.

That is, during the cooling operation, the temperature-regulated airflow 25 passing through the refrigerant-based heat exchanger 24 is deprived of heat to lower the temperature.
The air is blown out from the air supply grill 11 to the indoor 2 as a blown airflow 33 of the cool air.

During the heating operation, the refrigerant 47 is supplied to the four-way switching valve 4
The flow can be changed by 5 and the operation opposite to that in the cooling operation is performed in the same manner as in the related art.

That is, the temperature-regulated airflow 25 passing through the refrigerant-based heat exchanger 24 is raised in temperature by the heat radiation action, and is blown out from the air supply grill 11 to the indoor 2 as a blown airflow 33 of warm air. .

Next, the hot water cycle 59 will be described. The hot water system heater core 26 in the supply / exhaust wind tunnel device 14 includes an inlet pipe 50, an outlet pipe 51, a water heater 53 as a heat source supply unit, a solar collector 54 as an auxiliary heat source unit, and a heat storage unit. The tank 55 and the three-way valve 58 constitute a hot water system cycle 59.

Hot water (coolant) 57 as a working fluid circulating in the hot water cycle 59 is turned into high-temperature water by a water heater 53 or a solar collector 54, and is stored in a heat storage tank 5.
Stored at 5.

The hot water 57 stored in the heat storage tank 55 is discharged by the circulation pump 52, passes through the inlet pipe 50,
The water is supplied to the hot water heater core 26, where the heat is radiated.

Therefore, the hot air flow 27 passing through the hot water heater core 26 reaches a high temperature. The hot water 57 that has exited the hot water system heater core 26 passes through the outlet pipe 51 and reaches the three-way valve 58, where it is switched to one that goes to the solar collector 54 and one that returns to the water heater 53.

That is, when the solar collector 54 receives heat from the sun and has a high heat collection efficiency, the three-way valve 58 is opened, and the hot water 57 passes through the solar collector 54 and is absorbed,
It becomes high temperature, passes through the water heater 53 and is transported to the heat storage tank 55.

If the solar collector 54 has reached a sufficiently high temperature, the hot water 57 need not be heated by the water heater 53.

However, when the heat collection efficiency at the solar collector 54 is low, such as at night or in cloudy weather, the three-way valve 58 is closed, and the hot water 57 is returned directly to the water heater 53 without passing through the solar collector 54, where it is heated again. You.

Hot water sensor 56 as hot water temperature detecting means
Is attached to a pipe coming out of the heat storage tank 55.

As shown in FIG. 2, an air-conditioning control unit 70 and an operation panel 71 having a display lamp 72 are attached to the indoor surface 5 in the house 1.

The air-conditioning control unit 70 and the operation panel 71 are composed of an outdoor air-conditioning device 67 including the compressor 42, the outdoor blower 49, the four-way switching valve 45, and the like.
2, the water heater 53, the three-way valve 58, the heat storage tank 55, the hot water sensor 56, and the supply / exhaust air tunnel device 14 are connected by a connection harness 69, respectively.
6, the compressor 42, the outdoor blower 49,
The operation of the circulation pump 52 and the like is stopped, and
Signals such as N, OFF, switching of the four-way switching valve 45 and the three-way valve 58, and stoppage of the operation of the air supply and exhaust air tunnel device 14 are transmitted and received.

In particular, in the supply / exhaust air tunnel device 14, the operation of the axial blower 31 is stopped, the opening / closing and opening of the inside / outside switching door 22, the supply / discharge switching door 35 and the air mix door 30 are adjusted, and the heat pump refrigeration cycle 46 The air conditioning control unit 70 receives the signal from the operation panel 71 and the signals from the refrigerant sensor 48 and the hot water sensor 56 in response to the signals from the operation panel 71 and the operation of the heating and cooling using the hot water system cycle 59. The processing is performed by the control processing means 68, and the respective devices are appropriately controlled so that indoor air conditioning becomes comfortable.

In particular, when the refrigerant sensor 48 is activated, the control processing means 68 of the air-conditioning control unit 70 responds to the signal, the display lamp 72 of the operation panel 71 is turned on, and the inside / outside switching door 22 and the supply / discharge switching door are turned on. 35 is controlled. However, a drive source (for example, an actuator motor) necessary for the drive is omitted from the figure because it becomes complicated.

The cooling / heating function can be exhibited by controlling the opening degree of the air mix door 30 by using the above-mentioned refrigerant-based heat exchanger 24 and the hot / water-based heater core 26 separately and independently. Adjustment is possible.

In particular, the temperature of the hot water 57 flowing in the hot water system heater core 26 can be controlled to a high temperature without being affected by the outside air temperature, and the stable heating performance can be greatly improved. The temperature of the airflow 33 can also be kept high.

FIG. 4 shows an axial blower 31 provided in the supply / discharge air tunnel device 14 of this embodiment.

FIG. 4A is a side sectional view of a five-stage axial flow blower 31 having three stages of movable cascades 40 and two stages of stationary cascades 41.

The axial blower 31 is provided with a drive motor 36.
And a shaft 36a for transmitting rotational motion to the movable cascade 40
And a shaft bearing 3 for supporting the vicinity of the tip of the shaft 36a
7, a motor column 38 to which the drive motor 36 is fixed and a bearing column 39 to which the shaft bearing 37 is fixed are attached to and supported on the inner wall surface of the outer shell in the air supply / discharge wind tunnel device 14.

The first, third, and fifth stages from the windward side show the movable cascade 40, and the second and fourth stages show the stationary cascade 41.

FIG. 4 (b) is a horizontal development sectional view of the movable cascade 40 and the stationary cascade 41, and is shown corresponding to FIG. 4 (a).

The movable cascades 40 of the first, third, and fifth stages have the same specification conditions for the blade shape 60, the number of blades 61, the blade pitch 62 (= t), and the blade mounting angle 63. It is composed of

Similarly, the second and fourth stationary blade rows also have a blade shape 60, a blade number 61, a blade pitch 62 (= t),
The blade mounting angle 63 is also the same.

That is, the blade shape 60 has a blade shape and a blade pitch of 6
No. 2 employs equal intervals. FIG. 4C shows the static pressure rise at each stage of the five-stage axial flow blower 31, and FIG.
This is shown in a graph corresponding to (b).

The number of stages of the axial blower 31 and the movable state of the axial blower 31 depend on the ventilation resistance generated in the whole air circuit including the intake duct 12, the air supply duct 13, and the air supply / discharge air tunnel device 14 and the airtightness of the room 2. By appropriately and optimally combining the cascade 40 and the stationary cascade 41, the movable cascade 40 and the stationary cascade 4
The generation of the vortex and the separation phenomenon of the mixed air flow 32 passing through the first air flow can be prevented, and a high-efficiency, low-noise blower can be selected.

(Embodiments 2, 3 and 4) In the second embodiment of the present invention shown in FIG. 5, the axial flow blower 14 having four stages of movable cascades and two stages of stationary cascades in total is used. However, due to the length and size of the ducts of the intake duct 12 and the air supply duct 13, the airflow resistance generated in the entire airflow circuit increases, the airflow resistance in the air supply / discharge air tunnel device 14 increases, and the airtightness of the indoor 2 increases. Gender, etc.

In another embodiment, only one stage of the movable cascade may be selected depending on the situation. Further, it is needless to say that a plurality of stages can be selected by rearranging the movable cascade and the stationary cascade. That is not.

[0115] Since the components such as the air supply and exhaust air tunnel device 14 described above are installed mostly outdoors 3 and the noise source is located away from the indoor 2, the noise resistance is reduced in conjunction with the reduction of the ventilation resistance. Reduction and power consumption can be achieved.

Further, with regard to the installation work of the component devices, since the installation work from the outside 3 becomes easy, the time required for the work and the number of man-hours can be greatly reduced irrespective of whether it is a new construction or an existing construction.

FIG. 6 shows a third embodiment of the present invention, and FIG.
The following shows an example.

FIG. 6 shows a state in which the air supply / exhaust air channel device 14 is installed below the bay window of the house 1, and FIG. 7 shows a state in which the air supply / exhaust air channel device 14 is installed along the longitudinal direction of the outer wall surface 5. Is shown. In any case, the basic function of the air supply / discharge wind tunnel device 14 shown in FIG.

(Embodiment 5) FIG. 8 shows a fifth embodiment of the present invention, in which the heat pump refrigeration cycle 4 shown in FIG.
This explains a detailed situation before and after the operation of the refrigerant sensor 48 as the refrigerant detecting means when the refrigerant 47 as the working fluid circulating in the inside 6 is a flammable substance.

FIG. 8A shows that when the air conditioner of the present invention starts operation, that is, when the main switch of the operation panel 71 is turned on, the axial blower 31 is driven and the refrigerant sensor 48 is activated. Check for a while or not,
After determining that it does not operate, the compressor 42 and the circulation pump 52
And the operation of the inside / outside switching door 22, the supply / discharge switching door 35, and the like are started.

However, as shown in FIG.
When the refrigerant sensor 48 operates during the check period, the control processing means 68 of the air-conditioning control unit 70 immediately responds to the signal, the display lamp 72 is turned on, and the operation of the axial blower 31 is continued. The inside / outside switching door 22 and the supply / discharge switching door 35 remain closed, and the operation of the compressor 42 and the like is not started.

FIG. 8 (b) shows a case where the main switch of the operation panel 71 is turned off. The compressor 42, the circulation pump 52, the inside / outside switching door 22, the supply / discharge switching door 35 and the like are stopped for a while. While the refrigerant sensor 48 is operating, the axial blower 3
Operation 1 is continued.

However, as shown in FIG.
When the refrigerant sensor 48 operates during the check period, the control processing means 68 of the air-conditioning control unit 70 responds immediately by receiving the signal, the display lamp 72 is turned on, and the operation of the axial blower 31 is continued. The switching door 22 and the supply / discharge switching door 35 remain closed, and the operation of the compressor 42 and the like is not started.

As shown in (d), when the refrigerant sensor 48 is activated during operation, the display lamp 72 is turned on immediately, and the operation of the axial blower 31 is continued. The discharge switching door 35 is closed, and all operations of the compressor 42 and the like are stopped.

Further, as shown in (f), when the refrigerant sensor 48 is operated while all the devices are stopped with the main switch also in the OFF state, the display lamp 72 is turned on.
Lights up, and the axial blower 31 starts driving. However, both the inside / outside switching door 22 and the supply / discharge switching door 35 remain closed.

According to this embodiment, when the refrigerant sensor 48 as the refrigerant detecting means is operated, the supply / discharge switching door 35 is closed by the control processing means 68 of the air-conditioning control section 70 under any conditions, and the discharged air flow 34 Can be blown to the outside 3 through the exhaust duct 19. Therefore,
It is possible to prevent stagnation of air contaminated with the refrigerant 47 in the supply / exhaust air tunnel device 14 and also to prevent the air blown into the indoor 2 as the blown airflow 33.

(Embodiment 6) FIG. 9 shows a sixth embodiment of the present invention.

In FIG. 9A, at the time of heating operation, especially at the time of startup, for example, the heat storage tank 5 of the hot water system cycle 59 is operated.
5 is lower than the set value when the signal from the hot water sensor 56 as the hot water temperature detecting means is lower than the set value such that the temperature of the hot water 57 stored in the hot water 5 is low and sufficient heat is not supplied from the water heater 53 or the solar collector 54. Is shown by a dashed line.

In such a case, the four-way switching valve 45 is switched, the heat pump type refrigeration cycle 46 is set to the heating operation, and the heating speed effect of the refrigerant 47 is used to increase the temperature of the airflow 33 blown out to the indoor 2. This is indicated by a solid line.

That is, as shown in FIG.
The air mix door 30 is closed until the hot water 57 in the hot water cycle 59 reaches the set temperature, and the hot water heater core 26 is turned on. The temperature of the blown airflow 33 to the indoor 2 can be raised by not passing the temperature-controlled airflow 25 through the airflow.

(Embodiments 7 and 8) FIGS. 10 and 11 show a seventh and eighth embodiment of the present invention in which each stage of the axial blower 31 is combined with an axial flow blade 64 and a diagonal flow blade 65, respectively. Embodiments are shown, each of which has four stages of movable cascades 40 and two stages of stationary cascades 41, and shows a total of six stages of axial flow blowers 31.

In FIG. 10, the first and fourth stages correspond to those in FIG.
In the first stage, the third stage and the sixth stage have the mixed flow blade 65 respectively.
Is shown. When these mixed-flow blades 65 generally pass through the movable cascade 40 as compared with the axial-flow blades 64, the mixed airflow 32 obtains a centrifugal component force by the rotating movable cascade 40 to generate a large static pressure rise. There is a tendency.

According to this embodiment, the degree of airtightness of the indoor 2 and the ventilation resistance generated in the all-air circuit including the intake duct 12, the air supply duct 13 and the air supply / discharge air tunnel device 14, etc.
By combining the blades of each stage of the axial flow blower 31 with the optimum axial flow blades 64 and the mixed flow blades 65, generation of vortices and separation phenomenon of the passing mixed air flow can be prevented, and high static pressure and high efficiency can be obtained. ,
It is possible to select a low noise blower.

(Embodiment 9) FIG. 12 shows a three-stage movable cascade 4
9 shows an axial-flow blower 31 according to a ninth embodiment of the present invention in which zero and two stages of stationary cascades 41 and a total of five stages of cascades are combined.

The axial blower 31 includes a drive motor 36,
A shaft 36a for transmitting rotational motion to the movable cascade 40;
A shaft bearing 37 that supports the vicinity of the tip of the shaft 36a is arranged, and is supported by a motor support 38 to which the drive motor 36 is fixed and a bearing support 39 to which the shaft bearing 37 is fixed.
It is fixed in the supply / exhaust air tunnel device 14. The movable cascade 40 is rotated by the drive of the drive motor 36, and sends out the mixed airflow 32 downwind.

FIG. 12A shows a three-stage movable cascade 40, 2
FIG. 3 shows a cross-sectional side view of a five-stage axial fan having a stage of stationary blade rows 41.

FIG. 12 (b) is a horizontal development sectional view showing a combination of the movable cascade 40 and the stationary cascade 41.
This corresponds to FIG.

Here, the motor column 38 and the bearing column 39 are formed by stationary blade rows 41 and are fixed to the supply / exhaust air tunnel device 14.

Each of the movable cascade 40 and the stationary cascade 41 has a blade pitch 62 of the movable cascade 40 and the stationary cascade 41 in order to reduce the resonance noise caused by the movable cascade 40 in particular.
(= T) is slightly changed. In addition to the blade pitch 62, the blade shape 60, the number of blades 61, the blade mounting angle 6
3 has been changed.

These may be appropriately changed and selected according to the situation. For example, when the ventilation resistance of the all-wind circuit is small, the movable cascade 40 having one-stage arc blades may be used.

FIG. 12C shows the five-stage axial blower 31.
12A is a graph showing the static pressure rise at each stage.
It is shown corresponding to (b).

The movable cascade 40 and the stationary cascade 4 shown here
There is no problem if 1 is formed not only with the axial flow blade 64 but also with the diagonal flow blade 65.

According to this embodiment, according to the degree of airtightness of the indoor 2 and the airflow resistance generated in the all-air circuit including the intake duct 12, the air supply duct 13, the air supply / discharge wind tunnel device 14, and the like,
By combining the optimal movable cascade 40 and the stationary cascade 41 of each stage of the axial blower 31, it is possible to suppress the generation and separation of the vortex of the passing mixed airflow 32 as small as possible, and to achieve high efficiency,
It is possible to select a low noise blower.

In particular, not only the movable blade row 40 but also the blade shape 60 of the stationary blade row 41, the number of blades 61, the blade pitch 62,
By changing the blade mounting angle 63, a blade with higher efficiency and lower noise can be realized.

[0145]

As is apparent from the above embodiment, the invention according to the first aspect of the present invention relates to a suction grill having an inside air filter and a suction port, and an air supply grill having a supply port on the indoor surface of the outer wall. A suction duct that opens to face the suction grille, and an air supply duct that opens to face the air supply grille are respectively attached through the outer wall, and the suction duct is mounted on an outdoor surface of the outer wall. And an air supply / exhaust air tunnel device that connects the air supply duct to the air supply / exhaust air duct. The air supply / exhaust air channel device has an external air filter and an external air intake port near the intake air duct, and an exhaust air near the air supply duct. An exhaust duct having a mouth is attached, and the inside air flow and the outside air filter sucked from the room through the intake duct through the intake grill and the inside air filter into the air supply / exhaust air tunnel device. An internal / external switching door for controlling the amount of external air to be sucked from the outside through the external air suction port through the external air inlet; and an internal / external mixed air flow that passes through the internal / external switching door and mixes the internal air flow and the external air flow. A refrigerant heat exchanger for transferring and removing humidity, and an air mixing door for distributing a temperature regulated airflow passing through the refrigerant heat exchanger to a hot airflow flowing through a hot water heater core and a bypass airflow passing through a bypass path. An axial blower as a power source that mixes the hot air flow and the bypass airflow that have passed through the hot water heater core and sends the mixed airflow to the downstream, and supplies the mixed airflow that has passed through the axial flow fan through the air supply duct through the air supply duct. The airflow blown out from the grill into the room and the discharge airflow discharged from the exhaust port to the outside through the exhaust duct. It is characterized in that it has and a supply and discharge switching door to obtain.

According to this configuration, it is not necessary to route long ducts behind the ceiling, and the ventilation resistance generated in the whole wind circuit including each device is greatly reduced, so that the size of each device is reduced in size and weight. Power consumption can be reduced, and running costs can be reduced.

Further, the inside / outside switching door and the supply / discharge switching door in the supply / discharge air tunnel device can be easily opened / closed with a small number of parts.
Both the function of exhaust air that discharges indoor dirty air to the outside and the function of air supply that takes outdoor fresh air into the room are possible, and by providing an efficient ventilation function,
This has the effect of reducing costs.

Further, by installing an air supply / exhaust wind tunnel device having a built-in axial blower outdoors, the noise source can be moved away and the construction work from the outside can be largely performed, so that the noise can be easily reduced and the indoor comfort can be reduced. Along with the effect of creating an environment, new construction can be easily installed in existing homes as well as existing ones, and the construction time can be greatly reduced, and construction costs can be reduced.

Further, the refrigerant-based heat exchanger and the hot-water-based heater core are installed in separate cycles, respectively, and the opening and closing operation of the air mixing door uses an independent cooling source and controls the opening degree of the air mixing door. , Individual cooling and heating control and automatic temperature and humidity adjustment
It offers performance and comfort that are not affected by outside temperature, and has the effect of preventing condensation and mold on the walls and the like.

According to a second aspect of the present invention, a heat pump refrigeration cycle is constituted by a refrigerant heat exchanger, a compressor, an outdoor heat exchanger, and a pressure reducing means, and flammable as a working fluid in the heat pump refrigeration cycle. Containing a refrigerant having properties,
Refrigerant detection means is installed in the air supply / discharge air tunnel device, and when the refrigerant detection means detects the refrigerant, the supply / discharge switching door is closed, a signal for operating only the axial blower is transmitted, and the discharge airflow is blown out through the exhaust duct to the outside. An air-conditioning control unit having a built-in control processing means is provided.

According to this configuration, if the flammable refrigerant that does not affect the natural environment leaks from the refrigerant heat exchanger for some reason, even if the compressor is operating, the operation is stopped. Even when the refrigerant is detected by the refrigerant detection means, the refrigerant can be prevented from staying in the air supply / discharge wind tunnel device and entering the room indoors, thereby ensuring the safety of persons and equipment in the house and the room. This has the effect of improving the performance.

According to a third aspect of the present invention, a heat pump type refrigeration cycle is constituted by a refrigerant heat exchanger, a compressor, an outdoor heat exchanger, a pressure reducing means, and a four-way switching valve. An outlet pipe, a circulation pump, and a heat source supply means constitute a hot water cycle, and a hot water temperature detection means is provided in the hot water cycle between the heat source supply means and the hot water heater core, and hot water in the hot water cycle is provided. When the temperature is equal to or lower than the set temperature, a signal for switching the four-way switching valve is transmitted so that the heat pump refrigeration cycle is set to the heating operation until the hot water reaches the set temperature, and the temperature of the temperature-controlled airflow passing through the refrigerant heat exchanger is increased. The air conditioner further includes an air-conditioning control unit having a built-in control processing unit for raising the temperature of the blown airflow blown indoors.

According to this configuration, the operation is separately and separately used and controlled separately in the heat pump type refrigeration cycle and the hot water system cycle. Can be prevented,
Also, the effect of making the indoor space comfortable by significantly improving the heating speed effect at the time of the heating operation startup.

According to a fourth aspect of the present invention, each stage of the axial flow blower is connected to the axial flow blade and the inclined blade in accordance with the ventilation resistance generated in the all-air circuit including the air supply / exhaust wind tunnel device and the airtightness of the room. It is characterized by being combined with a flow vane.

According to this configuration, by producing a fan with lower noise and higher efficiency, a comfortable indoor environment is created and the power consumption is reduced.

According to a fifth aspect of the present invention, there is provided a drive motor for an axial blower combined with a movable cascade and a stationary cascade, a shaft transmitting rotational motion to the movable cascade, and supporting a vicinity of a tip of the shaft. A shaft bearing is arranged, a motor column fixing the drive motor and a bearing column fixing the shaft bearing are formed by the stationary blade row, and a draft resistance generated in a whole wind circuit including a supply and exhaust wind tunnel device, and indoor air resistance. According to the present invention, the blade shape, the number of blades, the blade pitch, and the blade mounting angle are changed according to the airtightness.

According to this configuration, an optimal cascade is combined according to various conditions. By producing a low-noise and high-efficiency axial-flow blower, a comfortable indoor environment is created and power consumption is reduced. It also has the effect of lowering.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an air conditioner showing one embodiment of the present invention.

FIG. 2 is a schematic view of an air conditioner showing a mounting structure of the first embodiment.

FIG. 3 is a configuration diagram of an air conditioner showing an exhaust state of the first embodiment.

4A is a cross-sectional view of an axial blower showing the first embodiment. FIG. 4B is a cross-sectional view of a five-stage cascade of the axial blower showing the first embodiment. FIG. 4C is an axial blower showing the first embodiment. Of static pressure rise in a five-stage cascade

FIG. 5A is a sectional view of an axial blower showing a second embodiment of the present invention. FIG. 5B is a sectional view of a six-stage cascade of axial blowers showing a second embodiment of the present invention. Explanatory drawing of a static pressure rise of a six-stage cascade of an axial blower showing a second embodiment of the present invention.

FIG. 6 is a schematic diagram of an air conditioner showing a mounting structure according to a third embodiment of the present invention.

FIG. 7 is a schematic diagram of an air conditioner showing a mounting structure according to a fourth embodiment of the present invention.

FIG. 8 (a) is a control explanatory diagram of an air conditioner showing a state at the start of operation in a fifth embodiment of the present invention. (B) A state at the time of operation stop in the fifth embodiment of the present invention. (C) In the fifth embodiment of the present invention, a control explanatory diagram of the air conditioner when the refrigerant sensor is activated at the start of operation (d) In the fifth embodiment of the present invention (E) Control explanatory diagram of the air conditioner when the refrigerant sensor operates during operation (e) In the fifth embodiment of the present invention, control explanatory diagram of the air conditioner when the refrigerant sensor operates when the operation is stopped (f) FIG. 5 is a control explanatory diagram of the air conditioner when the refrigerant sensor is operated during stoppage in the fifth embodiment of the present invention.

FIG. 9 (a) compares the operation using only a hot water cycle and the operation using together with a heat pump type refrigeration cycle when the air conditioner according to the sixth embodiment of the present invention starts heating. (B) In the sixth embodiment of the present invention, a control explanatory diagram of the main components during the rapid heating operation

FIG. 10 is a cross-sectional view of a blower combining an axial flow blade and a mixed flow blade according to a seventh embodiment of the present invention.

FIG. 11 is a cross-sectional view of a blower combining an axial flow blade and a diagonal flow blade, showing an eighth embodiment of the present invention.

12A is a cross-sectional view of an axial blower according to a ninth embodiment of the present invention. FIG. 12B is a cross-sectional view of a five-stage cascade in which the blade pitch of the axial blower according to the ninth embodiment of the present invention is changed. (C) Explanatory drawing of a static pressure rise of a five-stage cascade in which the blade pitch of an axial blower according to a ninth embodiment of the present invention is changed.

FIG. 13 is a configuration diagram of a heat pump type cooling and heating air conditioner in a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 House 2 Indoor 3 Outdoor 4 Exterior wall 5 Indoor surface 6 Outdoor surface 7 Inside air filter 8 Suction port 9 Suction grill 10 Air supply port 11 Air supply grille 12 Suction duct 13 Air supply duct 14 Supply / exhaust air tunnel device 15 Outside air filter 16 Reference Signs List 17 outside air intake duct 18 exhaust port 19 exhaust duct 20 inside air flow 21 outside air flow 22 inside / outside switching door 23 inside / outside mixed air flow 24 refrigerant system heat exchanger 25 temperature regulated air flow 26 hot water system heater core 27 hot air flow 28 bypass passage 29 bypass air flow 30 air Mix door 31 Axial blower 32 Mixed airflow 33 Blowout airflow 34 Emission airflow 35 Supply / discharge switching door 36 Drive motor 36a Shaft 37 Shaft bearing 38 Motor column 39 Bearing column 40 Movable cascade 41 Stationary cascade 42 Compressor 43 Outdoor heat exchanger 44 Decompression means (Ori 45) Four-way switching valve 46 Heat pump refrigeration cycle 47 Refrigerant 48 Refrigerant detecting means (refrigerant sensor) 49 Outdoor blower 50 Inlet pipe 51 Outlet pipe 52 Circulating pump 53 Heat source supply means (Hot water heater) 54 Auxiliary heat source means (Solar collector) 55 Heat storage tank 56 Hot water temperature detecting means (hot water sensor) 57 Hot water (coolant) 58 Three-way valve 59 Hot water system cycle 60 Blade shape 61 Number of blades 62 Blade pitch 63 Blade mounting angle 64 Axial flow blade 65 Diagonal flow blade 66 Refrigerant connection pipe 67 Outdoor air conditioner 68 Control processing means 69 Connection harness 70 Air conditioning control unit 71 Operation panel 72 Indicator lamp 73 Ceiling 74 Floor 75 Outside air entry duct 76 Inside air exhaust duct 77 Exhaust device 78 Exhaust blower 79 Total heat exchanger 80 Connection duct 81 Air supply device 82 Dustproof filter Ter 83 indoor air supply blower 84 indoor air outlet 85 indoor blow-out duct 86 front intake grill 87 indoor suction port

Claims (5)

[Claims] An intake grill having an inside air filter and an intake port and an intake grill having an intake port are installed on an indoor surface of an outer wall, and an intake duct opened to face the intake grill; Air supply ducts facing the air grille are respectively mounted through the outer wall, and an air supply / discharge air tunnel device connecting the intake duct and the air supply duct is mounted on an outdoor surface of the outer wall; An outside air suction duct having an outside air filter and an outside air suction port near the suction duct and an exhaust duct having an exhaust port near the air supply duct are attached to the wind tunnel device. An inside air flow sucked from the room through the suction duct through the grill and the inside air filter, and an outside air flow sucked from the outside through the outside air suction port through the outside air filter An internal / external switching door that controls each suction amount, a refrigerant heat exchanger that passes through the internal / external switching door, transfers heat and removes humidity from an internal / external mixed air flow in which the internal air flow and the external air flow are mixed, An air mixing door that distributes the temperature-controlled airflow passing through the refrigerant heat exchanger to a hot airflow that passes through a hot water heater core and a bypass airflow that passes through a bypass path; and the hot air flow that passes through the hot water heater core. An axial blower as a power source that mixes the bypass airflow and sends it downstream, and a blowout airflow that blows the mixed airflow that has passed through the axial flow blower from the air supply grill through the air supply duct into the room and the exhaust air through the exhaust duct. An air conditioner, comprising: a supply / discharge switching door that switches to a discharge airflow that discharges from the exhaust port to the outside. Location. 2. A heat pump type refrigeration cycle is constituted by a refrigerant heat exchanger, a compressor, an outdoor heat exchanger and a pressure reducing means.
A refrigerant having flammability as a working fluid is contained in the heat pump type refrigeration cycle, and refrigerant detection means is installed in the supply / exhaust air tunnel device.When the refrigerant detection means detects the refrigerant, the supply / discharge switching door is closed, 2. The air conditioner according to claim 1, further comprising an air conditioning control unit having a built-in control processing unit that transmits a signal for operating only the blower and blows out the discharged airflow to the outside through the exhaust duct. 3. A heat pump refrigeration cycle comprising a refrigerant heat exchanger, a compressor, an outdoor heat exchanger, a pressure reducing means, and a four-way switching valve, a hot water heater core, an inlet pipe, an outlet pipe, a circulation pump, and a heat source. A hot water system cycle is configured with the supply unit, and a hot water temperature detection unit is provided in the hot water system cycle between the heat source supply unit and the hot water system heater core.If the temperature of the hot water in the hot water system cycle is equal to or lower than a set temperature, Sends a signal to switch the four-way switching valve so that the heat pump refrigeration cycle enters a heating operation until the hot water reaches a set temperature, and raises the temperature of the temperature-regulated airflow passing through the refrigerant-based heat exchanger and blows the airflow indoors. The air conditioner according to claim 1 or 2, further comprising an air conditioning control unit including a control processing unit that raises the temperature of the air conditioner. 4. Each stage of an axial flow blower is combined with an axial flow blade and an oblique flow blade according to ventilation resistance generated in an all-air circuit including an air supply / exhaust wind tunnel device and airtightness indoors. The air conditioner according to claim 1 or 2, wherein: 5. A drive motor for an axial blower combined with a movable cascade and a stationary cascade, a shaft for transmitting rotational motion to the movable cascade, and a shaft bearing for supporting a vicinity of a tip of the shaft are arranged. Ventilation resistance generated in the whole wind circuit including the exhaust tunnel device, and, depending on indoor airtightness, a motor column fixing the drive motor and a bearing column fixing the shaft bearing are formed by the stationary blade row, respectively. 5. The air conditioner according to claim 1, wherein the blade shape, the number of blades, the blade pitch, and the blade mounting angle are changed.