JPH08278043A - Outdoor unit for separate type air conditioner - Google Patents

Abstract

PURPOSE: To miniaturize an outdoor unit as much as possible by a method wherein a hot-gas engine is provided in the main body of the outdoor unit while an outdoor heat exchanger is provided behind the hot-gas engine so that a part of the outdoor heat exchanger is overlapping with the hot-gas engine in fore-and-rear relation. CONSTITUTION: A hot-gas engine 1 is provided in an outdoor unit 300 and an outdoor heat exchanger 301 is provided behind the hot-gas engine 1 so that a part 301a of the heat exchanger 301 is overlapping with the engine 1 in fore- and-rear relation. An outdoor fan 303 is provided in a space surrounded by the high-temperature housing 3c and the low-temperature housing 5c of the hot-gas engine 1. The outdoor fan 303 and the outdoor heat exchanger 301 are surrounded by a duct 305 making the flow of air and air flows through the outdoor heat exchanger 301 in an arrow sign direction in a diagram. In this case, a part 305a of the duct 305 is arranged in the outdoor unit 300 so as to overlap with the hot-gas engine 1. According to this method, the hot-gas engine 1 and the outdoor heat exchanger 301 can be received in the outdoor unit 300 efficiently.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of an outdoor unit of a separation type air conditioner constructed by using a heat absorbing heat source and a heat radiating heat source of a hot gas engine.

[0002]

2. Description of the Related Art Generally, a separation type air conditioner in which an endothermic heat source for a Vilmier cycle hot gas engine, a heat radiating heat source, an indoor heat exchanger, and an outdoor heat exchanger are connected (for example, is known). , Japanese Patent Publication No. 5-65777). The Vilmier cycle, which is the basic cycle of this type of equipment, performs heat pump work using a temperature difference, and is characterized in that it does not include volumetric gas compression.

[0003]

However, this means that the specific output of the Vilmier cycle is small, and there is a drawback in that the device itself becomes large as compared with devices using other cycles. As the size of the device increases, the size of the outdoor unit that must house the outdoor heat exchanger, the outdoor fan, and the like also increases.

An object of the present invention is to provide an outdoor unit for a separation type air conditioner which can solve the above-mentioned conventional problems and can be miniaturized as much as possible.

[0005]

According to a first aspect of the present invention, there is provided a hot gas engine having a high temperature housing and a low temperature housing, the heat source for absorbing heat of the hot gas engine and the heat radiation of the hot gas engine. In an outdoor unit of a separation type air conditioner that connects a heat source and an outdoor heat exchanger, a hot gas engine is provided in the outdoor unit main body, and a part of the hot gas engine is located in front of and behind the hot gas engine. An outdoor heat exchanger is provided so as to overlap.

According to the second aspect of the present invention, there is provided a hot gas engine having a high temperature side housing and a low temperature side housing, the heat absorbing heat source of the hot gas engine, the heat radiating heat source of the hot gas engine, and the outdoor heat exchange. In the outdoor unit of the separation type air conditioner connected to the air conditioner, a hot gas engine is installed inside the outdoor unit main body, and outdoor heat exchange is performed so that a part of the hot gas engine overlaps with the hot gas engine in the front and back. And an outdoor fan is provided in the space surrounded by the high temperature side housing and the low temperature side housing of the hot gas engine.

According to the third aspect of the present invention, there is provided a hot gas engine having a high temperature housing and a low temperature housing, the heat absorbing heat source of the hot gas engine, the heat radiating heat source of the hot gas engine, and the outdoor heat exchange. In the outdoor unit of the separation type air conditioner connected to the air conditioner, a hot gas engine is installed inside the outdoor unit main body, and outdoor heat exchange is performed so that a part of the hot gas engine overlaps with the hot gas engine in the front and back. An outdoor fan is provided in a space surrounded by a high temperature side housing and a low temperature side housing of the hot gas engine, and the outdoor fan and the outdoor heat exchanger are surrounded by a duct.

The invention according to claim 4 is provided with a hot gas engine having a high temperature side housing and a low temperature side housing, the heat source for absorbing heat of the hot gas engine, the heat source for radiating heat of the hot gas engine, and the outdoor heat exchange. In the outdoor unit of the separation type air conditioner connected to the air conditioner, a hot gas engine is provided in the main body of the outdoor unit so that the space surrounded by the high temperature side housing and the low temperature side housing of the hot gas engine overlaps front and back. Is provided with a plurality of outdoor heat exchangers.

According to a fifth aspect of the present invention, there is provided a hot gas engine having a high temperature side housing and a low temperature side housing, the heat source for absorbing heat of the hot gas engine, the heat source for radiating heat of the hot gas engine, and outdoor heat exchange. In an outdoor unit of a separation type air conditioner connected with a heat exchanger, a hot gas engine is provided in the outdoor unit main body, and an outdoor heat exchanger is provided in a space surrounded by a high temperature side housing and a low temperature side housing of the hot gas engine. Is provided
This outdoor heat exchanger is arranged so as to straddle two adjacent surfaces of the outdoor unit body.

[0010]

According to the invention of claim 1, the hot gas engine is provided in the outdoor unit body, and the outdoor heat exchanger is provided in the back of the hot gas engine so that a part of the hot gas engine overlaps with the hot gas engine in the front and rear direction. Therefore, the hot gas engine and the outdoor heat exchanger can be efficiently housed in the space inside the outdoor unit, and the outdoor unit can be downsized.

According to the second aspect of the present invention, since the outdoor fan is provided in the space surrounded by the high temperature side housing and the low temperature side housing of the hot gas engine, the efficiency of arrangement in the space is further improved. The unit can be made smaller.

Further, in the invention of claim 3, since the outdoor fan and the outdoor heat exchanger are surrounded by the duct, the air passing through the heat exchanger flows efficiently, and the heat exchange efficiency in the outdoor heat exchanger is improved. And the performance of the air conditioner is improved.

According to the invention of claim 4, a hot gas engine is provided in the outdoor unit main body, and a plurality of outdoor units are provided in the space surrounded by the high temperature side housing and the low temperature side housing of the hot gas engine so as to overlap in the front and rear direction. Since the heat exchanger is provided, the outdoor unit is further downsized, and since the outdoor heat exchangers are arranged in so-called multiple rows, there is no shortage of heat exchange capacity and heat exchange efficiency is maintained. .

In the invention of claim 5, unlike the invention described in each of the above claims, the outdoor heat exchangers are not arranged so as to partially overlap each other. In order to miniaturize the outdoor unit, if the outdoor heat exchangers are not arranged so as to partially overlap each other, the size of the outdoor heat exchanger will be reduced by that amount, and the heat exchange capacity will be insufficient. , In the present invention, the outdoor heat exchanger is provided adjacent to the outdoor unit main body 2
The size of the outdoor heat exchanger is maintained by arranging it so as to straddle two surfaces, thereby eliminating the shortage of heat exchange capacity and maintaining heat exchange efficiency.

[0015]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a cold / hot water supply circuit that constitutes an air conditioner. In this circuit, a hot gas engine 1 utilizing a Vilmier cycle is used as a heat source. The Vilmier cycle hot gas engine 1 itself is publicly known, and a detailed description thereof will be omitted. However, the high temperature side displacer 3 housed in the high temperature side housing 3C and the low temperature side displacer 5 housed in the low temperature side housing 5C are provided. ing. Both displacers 3 and 5 are, for example, high temperature side displacer 3
When reaching an intermediate position toward the bottom dead center, the low temperature side displacer 5 is operable through a crank 7 driven by a motor 6 so that the low temperature side displacer 5 can be operated 90 ° out of phase with each other, such as reaching the top dead center. It is connected. When the high temperature side displacer 3 and the low temperature side displacer 5 operate,
The enclosed helium moves through the regenerators 9a and 9b, and when passing through the regenerators 9a and 9b, the helium is heated or cooled, so that the pressure of the helium is increased or decreased. When the pressure of helium is increased, the temperature rises and heat is radiated to the medium temperature heat exchangers 11a and 11b, and when the pressure is reduced, the temperature decreases and heat is absorbed from the low temperature heat exchanger 13.

That is, the low temperature heat exchanger 13 is the hot gas engine 1
And the intermediate temperature heat exchangers 11a and 11b constitute the heat source for heat radiation of the hot gas engine 1.

When the Vilmier cycle hot gas engine 1 is used, since there is no pressure difference between the upper and lower sides of the displacers 3 and 5, the force applied to the drive portion is reduced, the oil-free operation of the equipment is possible, and the displacer on the low temperature side is also possible. Since the piston rod 5 serves as an output piston, if the diameter of the piston rod is appropriately designed, the motor 6 for operating the crank 7 during operation becomes unnecessary.

However, according to this embodiment, the air conditioner using the low temperature heat exchanger (heat absorbing heat source) 13 and the medium temperature heat exchangers (heat radiating heat source) 11a, 11b of the hot gas engine 1. 100 is provided. This air conditioner 100
Includes an indoor unit 200 and an outdoor unit 300, the indoor unit 200 accommodates an indoor heat exchanger 201 and an indoor fan 203, and the outdoor unit 300 includes a hot gas engine 1 and an outdoor heat exchanger 301. Outdoor fan 3
And 03 are stored.

Reference numerals 30 and 40 are four-way valves provided in the cold / hot water supply circuit, reference numeral 50 is a cold water circulation pump, and reference numeral 60 is a hot water circulation pump.

Next, the cooling / heating operation will be described. During the cooling operation, the four-way valves 30 and 40 are switched as shown by the solid line in FIG. The cold water absorbed by the low-temperature heat exchanger (heat source for heat absorption) 13 flows to the indoor heat exchanger 201 through the cold water circulation pump 50 and the four-way valve 30, where heat is exchanged and cold air is sent to the room (cooling). Return to the low temperature heat exchanger (heat source for heat absorption) 13 through the four-way valve 40. At this time, the hot water radiated by the intermediate temperature heat exchangers (heat sources for heat radiation) 11a, 11b flows to the outdoor heat exchanger 301 through the hot water circulation pump 60 and the four-way valve 30, and after heat exchange there, through the four-way valve 40. Medium temperature heat exchanger (heat source for heat radiation) 11a, 11
Return to b. During the heating operation, the four-way valves 30 and 40 are switched as shown by the dotted line. Medium temperature heat exchanger (heat source for heat radiation)
The hot water radiated by 11a and 11b flows into the indoor heat exchanger 201 through the hot water circulation pump 60 and the four-way valve 30,
There, after exchanging heat and sending hot air into the room (heating),
Medium temperature heat exchanger (heat source for heat radiation) 11 through the four-way valve 40
Return to a and 11b. At this time, the cold water absorbed by the low-temperature heat exchanger (heat absorption heat source) 13 is cooled by the cold water circulation pump 50,
It flows through the four-way valve 30 to the outdoor heat exchanger 301, heat-exchanges there, and then returns to the low temperature heat exchanger (heat source for heat absorption) 13 through the four-way valve 40.

According to this embodiment, however, the hot gas engine 1, the outdoor heat exchanger 301, and the outdoor fan 303 are efficiently housed in the outdoor unit 300, and as a result, the outdoor unit 300 is downsized. It has a feature in devising whether or not. In the following figures, the piping and pumps are not shown.

As a first embodiment, as shown in FIG. 2a, a hot gas engine 1 is provided in the outdoor unit 300, and at the back of the hot gas engine 1, as shown in FIG. 2b,
Part 301a is the hot gas engine 1 and the outdoor unit 300.
The outdoor heat exchanger 301 is provided so as to overlap the front and rear inside, and the outdoor fan 30 is provided in a space surrounded by the high temperature side housing 3C and the low temperature side housing 5C of the hot gas engine 1.
3 is provided. The outdoor fan 303 and the outdoor heat exchanger 301 are surrounded by a duct 305 that creates a flow of air, and air is flown through the outdoor heat exchanger 301 as indicated by an arrow. In addition, a part 305a of the duct 305 is arranged so as to overlap with the hot gas engine 1 in the outdoor unit 300 in the front-rear direction.

According to the first embodiment, the outdoor heat exchanger 301 is provided such that a part 301a of the hot gas engine 1 overlaps with the hot gas engine 1 in the front and rear of the outdoor unit 300, and the high temperature side housing 3C of the hot gas engine 1 is provided. Since the outdoor fan 303 is provided in the space surrounded by the low temperature side housing 5C,
The installation space can be effectively used, and the outdoor unit 300 can be downsized accordingly.

As a second embodiment, it is conceivable to use a substantially L-shaped outdoor heat exchanger 301 as shown in FIGS. Even in this case, if the part 301a of the outdoor heat exchanger 301 is overlapped with the hot gas engine 1 in the front-rear direction, the outdoor unit 300 can be downsized.

As a third embodiment, as shown in FIGS. 4a to 4c, a portion 301a of the substantially L-shaped outdoor heat exchanger 301,
And the lower portion 301b are connected to the hot gas engine 1 and the outdoor unit 3
They may be overlapped with each other within 00. This also
It is possible to reduce the size of the outdoor unit 300.

As a fourth embodiment, as shown in FIGS. 5a and 5b, the outdoor heat exchanger is so constructed that a part 301a is formed in the back of the hot gas engine 1 so that the hot gas engine 1 and the outdoor unit 300 overlap each other in the front and rear direction. It is also possible to arrange 301. It should be noted that this example corresponds to a case in which the left and right sides in the figure are reversed with respect to FIG. As described above, the outdoor unit 300 can be downsized as well.

As a fifth embodiment, as shown in FIGS. 6a to 6c, the outdoor unit 30 is provided in the space surrounded by the high temperature side housing 3C and the low temperature side housing 5C of the hot gas engine 1.
You may make it provide the outdoor heat exchanger 301 bent in substantially L shape so that it may straddle two 0 adjacent surfaces. FIG.
What is different from the one shown in FIG. 2 is that a part of the outdoor unit 300 does not overlap front and rear in the back of the hot gas engine 1. According to this embodiment, unlike the above-described embodiments, when the outdoor heat exchanger 301 is arranged, the outdoor heat exchangers 301 are not arranged so as to partially overlap each other. Therefore, in order to miniaturize the outdoor unit 300, originally, The size of the outdoor heat exchanger 301 would have to be reduced. Therefore, in this embodiment, the size of the outdoor heat exchanger 301 is maintained by providing the outdoor heat exchanger 301 that is bent in a substantially L shape so as to straddle two adjacent surfaces of the outdoor unit 300. Then
This eliminates the shortage of heat exchange capacity and maintains heat exchange efficiency.

In each of the embodiments described above, the outdoor heat exchanger 30 is so arranged that a part 301a is formed in the back of the hot gas engine 1 so as to overlap the hot gas engine 1 in the front and rear of the outdoor unit 300.
1 is extended. In order to secure the necessary capacity, the size of the outdoor heat exchanger 301 is set to the outdoor unit 30.
It extends in the width direction of 0. On the other hand, as a sixth embodiment, as shown in FIGS.
It is also possible to arrange the three rows of outdoor heat exchangers 301 so as to overlap each other in the front and rear in the space surrounded by the high temperature side housing 5 and the low temperature side housing 3. That is, in this embodiment, the size of the outdoor heat exchanger 301 is extended in the depth direction of the outdoor unit 300 in order to secure the necessary heat exchange capacity. According to this, since the outdoor heat exchanger 301 does not extend to the back of the hot gas engine 1, the depth dimension 1 of the outdoor unit 300 can be reduced by that amount, and the size can be reduced.

In any of the embodiments, the outdoor unit 3
Since the outdoor heat exchanger 301 and the outdoor fan 303 are efficiently arranged in 00, the outdoor unit 300 can be downsized as compared with the conventional one.

Although the present invention has been described based on the embodiment, it is obvious that the present invention is not limited to this embodiment. For example, referring to FIG. 2, the outdoor heat exchanger 301 is arranged at the back of the outdoor unit 300,
It is possible to place it in front of the outdoor unit 300. However, in this case, the outdoor fan 303 is disposed in the back, and the outdoor fan 303 operates not to suck air but to push air. Although the hot gas engine 1 is arranged upright in the above embodiment, the hot gas engine 1 is placed in a flat position, and is placed in a space surrounded by the high temperature side housing 3C and the low temperature side housing 5C of the hot gas engine 1 placed flat. The outdoor heat exchanger 3 so that the parts overlap in the front and back
It is possible to place 01.

[0031]

As is apparent from the above description, according to the first aspect of the invention, the outdoor heat exchanger is provided in the interior of the hot gas engine of the outdoor unit so that a part of the outdoor unit overlaps with the hot gas engine in the front-rear direction. Since it is provided, the hot gas engine and the outdoor heat exchanger can be efficiently housed in the space inside the outdoor unit, and the outdoor unit can be downsized.

According to the second aspect of the present invention, since the outdoor fan is provided in the space surrounded by the high temperature side housing and the low temperature side housing of the hot gas engine, the arrangement efficiency in the space is further improved, and the outdoor unit is improved. Can be further miniaturized.

In the third aspect of the invention, since the outdoor fan and the outdoor heat exchanger are surrounded by the duct, the air passing through the heat exchanger flows efficiently, so that the efficiency of heat exchange in the outdoor heat exchanger is improved. As a result, the performance of the air conditioner can be improved.

According to the invention of claim 4, in the space surrounded by the high temperature side housing and the low temperature side housing of the hot gas engine,
Since the plurality of outdoor heat exchangers are provided so as to overlap with each other in the front and rear, the outdoor unit is further downsized. Also,
Since the outdoor heat exchangers are arranged in multiple rows, so to speak, there is no shortage of heat exchange capacity.

According to the invention of claim 5, in the space surrounded by the high temperature side housing and the low temperature side housing of the hot gas engine,
So that it straddles two adjacent surfaces of the outdoor unit body,
Since the outdoor heat exchanger is provided, it is possible to reduce the size of the outdoor unit, maintain the size of the outdoor heat exchanger, and maintain the heat exchange efficiency.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing an embodiment of an outdoor unit of a separation type air conditioner of the present invention.

2A and 2B are views showing an embodiment of an outdoor unit of the present invention, in which a is a front view showing an arrangement state inside the outdoor unit, and b is a plan view thereof.

FIG. 3 is a view showing another embodiment of the outdoor unit of the present invention, a is a front view showing an arrangement state in the outdoor unit, and b.
Is a plan view and c is a side view.

FIG. 4 is a view showing another embodiment of the outdoor unit of the present invention, in which “a” is a front view showing an arrangement state inside the outdoor unit, and “b”.
Is a plan view and c is a side view.

5A and 5B are views showing still another embodiment of the outdoor unit of the present invention, a is a front view showing an arrangement state inside the outdoor unit, and b is a plan view thereof.

FIG. 6 is a view showing another embodiment of the outdoor unit of the present invention, in which a is a front view showing an arrangement state in the outdoor unit, and b.
Is a plan view and c is a side view.

FIG. 7 is a view showing still another embodiment of the outdoor unit of the present invention, a is a front view showing an arrangement state inside the outdoor unit, and b is a plan view thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hot gas engine 3C High temperature side housing 5C Low temperature side housing 11a, 11b Medium temperature heat exchanger (heat source for heat radiation) 13 Low temperature heat exchanger (heat source for heat absorption) 100 Air conditioner 200 Indoor unit 201 Indoor heat exchanger 300 Outdoor unit 301 Outdoor heat exchanger 301a Part 303 Outdoor fan

Claims (5)

[Claims] 1. A hot gas engine having a high temperature side housing and a low temperature side housing, wherein a heat source for absorbing heat of the hot gas engine, a heat source for radiating heat of the hot gas engine, and an outdoor heat exchanger are connected. In an outdoor unit of a type air conditioner, the hot gas engine is provided in the outdoor unit main body, and the outdoor heat exchanger is provided in the back of the hot gas engine so that a part of the hot gas engine overlaps with the hot gas engine in the front-rear direction. The outdoor unit of the separation type air conditioner, which is characterized in that 2. A hot gas engine having a high temperature side housing and a low temperature side housing, wherein a heat source for absorbing heat of the hot gas engine, a heat source for radiating heat of the hot gas engine, and an outdoor heat exchanger are connected. In an outdoor unit of a type air conditioner, the hot gas engine is provided in the main body of the outdoor unit, and the outdoor heat exchanger is provided in the back of the hot gas engine so that a part of the hot gas engine overlaps with the hot gas engine in the front-rear direction. An outdoor unit for a separation type air conditioner, wherein an outdoor fan is provided in a space surrounded by a high temperature side housing and a low temperature side housing of the hot gas engine. 3. A hot gas engine having a high temperature side housing and a low temperature side housing, wherein a heat source for absorbing heat of the hot gas engine, a heat source for radiating heat of the hot gas engine, and an outdoor heat exchanger are connected. In an outdoor unit of a type air conditioner, the hot gas engine is provided in the main body of the outdoor unit, and the outdoor heat exchanger is provided in the back of the hot gas engine so that a part of the hot gas engine overlaps with the hot gas engine in the front-rear direction. An outdoor fan is provided in a space surrounded by a high temperature side housing and a low temperature side housing of the hot gas engine, and the outdoor fan and the outdoor heat exchanger are surrounded by a duct. Outdoor unit. 4. A hot gas engine having a high temperature side housing and a low temperature side housing, wherein a heat source for absorbing heat of the hot gas engine, a heat source for radiating heat of the hot gas engine, and an outdoor heat exchanger are connected. In an outdoor unit of a type air conditioner, the hot gas engine is provided in the main body of the outdoor unit, and a plurality of outdoor heat generators are provided so as to overlap each other in the space surrounded by the high temperature side housing and the low temperature side housing of the hot gas engine. An outdoor unit for a separation type air conditioner, which is provided with a exchanger. 5. A hot gas engine having a high temperature side housing and a low temperature side housing, wherein a heat source for absorbing heat of the hot gas engine, a heat source for radiating heat of the hot gas engine, and an outdoor heat exchanger are connected. In an outdoor unit of a type air conditioner, the hot gas engine is provided in the outdoor unit body, and the outdoor heat exchanger is provided in a space surrounded by a high temperature side housing and a low temperature side housing of the hot gas engine. An outdoor unit for a separation type air conditioner, wherein the outdoor heat exchanger is arranged so as to straddle two adjacent surfaces of the outdoor unit body.