JPH09159304A - Heat pump device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the volume of a supporting part by dividing the support of the whole outdoor unit into the support of an engine and a compressor and the support of a case member. SOLUTION: In a heat pump device in which the refrigerant is circulated by a compressor 22 driven by an engine 12, the engine 12 and the compressor 22 are stored in a case member D consisting of a bottom member 3 and a covering member C, the engine 12 is supported through an opening provided in the bottom member 3 by a foundation member 3 through at least three or more first damping bodies 43 without through the case member D, and the case body D is supported by the foundation member directly or through three or more second damping bodies.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat pump device for circulating a refrigerant by driving a compressor by driving means such as an engine and a motor.

[0002]

2. Description of the Related Art Heretofore, a heat pump device has been put into practical use in which a compressor is driven by an engine provided in an outdoor unit, and thereby a refrigerant is circulated in a pipe for cooling and heating or air conditioning. In such an engine-driven heat pump device, there may be a problem in that vibration accompanying the rotation of the engine and generation of noise accompanying this vibration may occur.
Further, even in a heat pump device in which a compressor is driven by a motor, for example, in the case of a reciprocating compressor, vibration and noise of the compressor may be a problem. Particularly, when an outdoor unit is installed on the roof of a building, vibration may be transmitted to the building or noise may be heard indoors due to the space for installing the outdoor unit.

For this reason, it is carried out on the rooftop while being mounted on a vibration isolation frame which is an anti-vibration device having an outdoor vibration isolation function. This anti-vibration mount is a spring, a hydraulic damper, or an anti-vibration device that is arranged between a lower support member in contact with the rooftop floor, an upper support member on which the outdoor unit is mounted, and the lower support member and the upper support member. A vibration absorber having elasticity or viscoelasticity such as rubber is provided, and in order to prevent the outdoor unit from collapsing due to an external force such as wind or earthquake, if the upper support member swings vertically in a certain amplitude or more, , If the seismic stopper that abuts the upper support member is fixed to the lower support member, or if the outdoor unit swings laterally by a certain amplitude or more, the seismic stopper that abuts the side part of the outdoor unit will be the lower support member. It is fixed.

[0004]

By the way, in the conventional anti-vibration mount, since the engine and the compressor are supported by the mount supported by the outdoor unit, and the outdoor unit is supported as a whole by the mount, the vibration absorber having a large capacity is provided. Needed.

The present invention has been made in view of the above circumstances, and a heat pump device for reducing the capacity of the support portion by separating the entire outdoor unit into support for the engine or compressor and support for the case member. The purpose is to provide.

[0006]

In order to solve the problems and achieve the object, the invention according to claim 1 is a heat pump device for circulating a refrigerant by a compressor driven by the engine, wherein the engine and the The compressor is housed in a case member composed of a bottom member and a cover member, and at least three or more first vibration absorbers of the engine are passed through an opening provided in the bottom member without interposing the case member. It is characterized in that the case member is supported via the base member, and the case member is supported by the base member directly or via three or more second vibration absorbers. In this way, by accommodating the engine and the compressor in the case member and separating the support of the engine and the compressor from the support of the case member, the capacity of the support portion of the engine and the compressor can be reduced.

The invention according to claim 2 is characterized in that the compressor is fixed to the engine. In this way, since the compressor is fixed to the engine, it suffices to support the engine on the base member, which simplifies the support structure for the base member.

According to a third aspect of the present invention, the electric motor and the casings of the compressor that is driven by the electric motor and circulates the refrigerant are fixed to each other to form one unit, and the unit is composed of a bottom member and a cover member. While being housed in the case member, at least 3 units of the unit are provided without passing through the case member through the opening provided in the bottom member.
The base member is supported via one or more first vibration absorbers, and the case member is supported on the base member directly or via three or more second vibration absorbers. I am trying. In this way, the electric motor and the compressor are combined into one unit, the unit is housed in the case member, and the capacity of the supporting portion of the electric motor and the compressor is separated by separating the unit support and the case member support. Can be reduced.

The invention according to claim 4 is characterized in that a seal member for partitioning the inside and outside of the case member is arranged in the opening. Since the inside and outside of the case member are shut off by the seal member, the sound in the engine room is unlikely to leak to the outside.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a heat pump device of the present invention will be described below with reference to the drawings. 1 is a rear view showing the outdoor unit of the heat pump device, FIG. 2 is a side view showing the outdoor unit of the heat pump device, FIG. 3 is a sectional view showing the outdoor unit of the heat pump device, and FIG. 4 is a refrigerant circulation system of the heat pump device. FIG. 5, FIG. 5 is a diagram showing a heat exchange cycle of a refrigerant in the heat pump device, FIG. 6 is a rear view showing a part of the outdoor unit of the heat pump device in a cutaway view, and FIG. 7 is VI of FIG.
Sectional drawing which follows the I-VII line, FIG. 8 is a sectional view which shows the heat pump apparatus which follows the VIII-VIII line of FIG. 1, and FIG. 9 is IX of FIG.
-IX is a cross-sectional view taken along line IX, FIG. 10 is a cross-sectional view taken along line XX of FIG. 8 of another embodiment of the portion supporting the engine and compressor, and FIG. 11 is a cross-sectional view taken along line XI-XI of FIG. It is a figure.

First, the structure of the heat pump device will be described. As shown in FIG. 1 to FIG. 3, the casing 2 of the outdoor unit 1 of the heat pump device is provided with columns 4 at four corners of the bottom member 3.
2, the columns 4 are connected by beams (not shown), both side faces surrounded by the columns 4 are covered with side plates 5, the upper front and rear faces are covered with a wire net 23, and the lower front and rear faces are shown in FIG. Front plate 10 shown
0, the structure is such that it is covered with the rear plate 101 and the ceiling surface is covered with the top plate 6. The inside of the casing 2 is vertically divided by a central partition plate 7, and the upper side thereof is a heat exchange chamber 8. As shown in the lower part of the outdoor unit in FIG. 3, the lower part of the central partition plate 7 is partitioned by a middle plate 9 substantially in the front and rear. It is defined as chamber 11. An engine 12 is arranged inside the engine room 10.

The engine 12 is a water-cooled gas fuel engine and, as shown in FIG. 1, includes a cylinder head portion 12a and a cylinder body 12b. A gas mixer 13 is arranged at the intake port of the engine 12. Gas is supplied to the gas mixer 13 from a gas supply source (not shown), and the pipeline 14 and the air cleaner 1 are provided.
Air is taken in from the outside via the intake pipe 5 and the intake pipe 16.

A pipe 18 and an exhaust silencer 1 are provided at an exhaust port 17a of an exhaust gas heat exchanger 17 which is provided on a side surface of the cylinder body 12b and guides exhaust gas to exchange heat of cooling water.
9, an exhaust pipe 20 is connected, and exhaust gas is discharged to the outside through these. Engine 12
The lubricating oil is supplied from a lubricating oil tank 21 in the piping chamber 11. The engine 12
Is cooled by cooling water circulating between the radiator 102 and the engine 12 shown in FIG. When the cooling water is reduced, the cooling water is replenished from the cooling water tank 36 in the piping chamber 11. The output shaft (not shown) of the engine 12 is connected to a compressor 22 by a clutch (not shown), and the refrigerant is circulated in the pipe by the compressor 22.

On the other hand, in the heat exchange chamber 8, the outdoor heat exchanger 2
3 and the radiator 102 are arranged. The front and rear surfaces of the upper part of the heat exchange chamber 8 are covered with a wire net 24 as shown in FIG.

Further, this heat pump device has a structure shown in FIG.
As shown in, a refrigerant circuit 25 that includes the compressor 22 (22A, 22B) to form a closed loop, and a cooling water circuit 27 that includes a water pump 26 to form a closed loop are provided. In the figure, the arrow attached to the refrigerant circuit 25 indicates the flow of the refrigerant during the heating operation in which the four-way valve 35 is set to the heating position.

The refrigerant circuit 25 is a circuit for circulating a refrigerant such as CFC by the compressor 22. The refrigerant circuit 25 includes a refrigerant line 25a extending from each discharge side of the compressors 22A and 22B to an oil separator 28, and an oil separator 28. From the four-way valve 35 to the four-way valve 35
A refrigerant line 25c reaching the indoor heat exchanger 29 of the stand, a refrigerant line 25d passing from the indoor heat exchanger 29 through the accumulator 31 to the three outdoor heat exchangers 23, and the four-way valve from the outdoor heat exchanger 23. 35e refrigerant line 25e,
Refrigerant line 2 from the four-way valve 35 to the accumulator 31
5f and sub-accumulator 3 from accumulator 31
Refrigerant line 25g to 1a and sub accumulator 3
A refrigerant line 25i extending from 1a to each suction side of the compressors 22A and 22B is provided.

An oil return line 32 and a bypass line 25j are guided from the oil separator 28, the oil return line 32 is connected to a refrigerant line 25g, the bypass line 25j is connected to a refrigerant line 25f, and this bypass line 25j is connected. A bypass valve 33a is connected to the. Further, the accumulator 31 and the sub accumulator 31a are provided with liquid level sensors 34a and 34b, respectively, which detect the liquid level of the liquid-phase refrigerant stored therein. The bottom of the accumulator 31 is mainly connected to the bypass line 25k for returning oil to the refrigerant line 25g.
And the bypass valve 33 is connected to the bypass line 25k.
b is provided.

The refrigerant line 25b of the refrigerant circuit 25 is provided with a high pressure side pressure sensor 37a for detecting the high pressure side pressure of the refrigerant, and the refrigerant line 25i is provided with a low pressure side pressure sensor 37b for detecting the low pressure side of the refrigerant. Has been. Also,
An indoor temperature sensor 37c is provided near the indoor heat exchanger 29, and an outdoor temperature sensor 3 is provided near the outdoor heat exchanger 23.
7d is provided. Then, the high pressure side pressure sensor 37
The low pressure sensor 37b, the indoor temperature sensor 37c, and the outdoor temperature sensor 37d are connected to a controller (not shown). In addition, the control unit includes a refrigerant line 25.
A refrigerant circulation sensor 37e provided in a, a main switch (not shown), and a desired room temperature setting switch are connected.

On the other hand, the cooling water circuit 27 is a circuit in which the cooling water for cooling the engine 12 is circulated by the water pump 26, which passes from the discharge side of the water pump 26 through the exhaust gas heat exchanger 17 to the engine 12. A cooling water line 27a reaching the cooling water port (the inlet of the cooling water jacket 12a) of
A cooling water line 27b led from a cooling water outlet of the engine 12 (an outlet of the cooling water jacket 12a) to reach the temperature sensitive switching valve 38a, and a linear three-way valve 38b from the temperature sensitive switching valve 38a.
From the linear three-way valve 38b and the cooling water line 27d connected to the suction side of the water pump 26 through the accumulator 31 and the temperature sensitive switching valve 38a and the linear three-way valve 38b. Cooling water lines 27e, 2 guided and connected to the cooling water line 27d
It has 7f. A radiator 39 is provided in the cooling water line 27f.

When the engine 12 is driven, the compressors 22A and 22B are rotationally driven via an electromagnetic clutch (not shown). Then, the state (pressure P ₁ ,
The enthalpy i ₁ ) gas-phase refrigerant is sucked into the compressors 22A and 22B from the refrigerant line 25i and compressed, and becomes a high-temperature high-pressure refrigerant in the state (pressure P ₂ , enthalpy i ₂ ) shown in FIG. The required power (compression heat quantity) AL of the compressors 22A and 22B at this time is represented by (i ₂ −i ₁ ). The pressure P ₁ of the vapor-phase refrigerant sucked by the compressors 22A and 22B is detected by the low pressure side pressure sensor 37b and input to the control device.

The high-temperature and high-pressure vapor-phase refrigerant is supplied to the refrigerant line 25a.
Through the oil separator 28, and the oil component is removed by the oil separator 28. Then, the gas-phase refrigerant from which the oil component has been removed reaches the four-way valve 35 through the refrigerant line 25b. The oil separated from the refrigerant in the oil separator 28 is returned to the refrigerant line 25g through the oil return line 32. The pressure P ₂ (ignoring the pressure loss) of the high-temperature and high-pressure refrigerant flowing through the refrigerant line 25b is detected by the high-pressure side pressure sensor 37a and input to the control device.

By the way, during heating operation, the four-way valve
Port 35a and port 35c of port 35 are connected to each other,
The port 35b and the port 35d communicate with each other. This
The high-temperature high-pressure gas-phase refrigerant passes through the four-way valve 35 and
Indoor heat exchange that flows to the in 25c side and functions as a condenser
To the vessel 29. Then, it is guided to the indoor heat exchanger 29.
The high-temperature and high-pressure gas-phase refrigerant is condensed into the indoor air by the heat of condensation Q_TwoRelease
It is discharged and liquefied, and the state shown in FIG. 5 (pressure P_Two, Enter
Lupi i_Three) Liquid-phase refrigerant, and the heat dissipation Q at this time _Two(I_Two
−i₁), The room is heated.

Next, the high-pressure liquid-phase refrigerant liquefied in the indoor heat exchanger 29 is decompressed by the expansion valve 30.
In the state (pressure P ₁ and enthalpy i ₃₎ , part of which is vaporized and flows toward the accumulator 31 in the refrigerant line 25 d.

On the other hand, the cooling water circulated in the cooling water circuit 27 by the driving of the water pump 26 is discharged from the water pump 26 and flows through the cooling water line 27a. 12 to exhaust pipe 20
After the heat of the exhaust gas discharged to the engine is recovered and heated, the engine 12 is cooled by passing through the cooling water jacket 12a of the engine 12. And the exhaust gas heat exchanger 17,
The cooling water heated by the engine 12 flows through the cooling water line 27b and reaches the temperature sensitive switching valve 38a.

After the engine 12 is started, the temperature of the cooling water is low, and the temperature sensitive switching valve 38a allows the cooling water to flow to the cooling water line 27e, while stopping the flow to the cooling water line 27c (flow rate I ₁ = 0). When the engine 12 is in a steady operation state, the amount of heat exchange with the exhaust gas heat exchanger 17 and the engine 12 increases, the cooling water temperature rises, and the temperature sensitive switching valve 38a stops the flow to the cooling water line 27e (flow rate I ₂ = 0) On the other hand, the cooling water is supplied to the cooling water line 27c. The linear three-way valve 38b distributes the cooling water of the flow rate I ₁ by the control device, supplies the flow rate I ₃ to the cooling water line 27d, and supplies the flow rate I ₄ to the cooling water line 27f.

In the accumulator 31, the cooling water flowing in the cooling water line 27d causes the refrigerant line 25d to flow.
The refrigerant flowing through and the liquid-phase refrigerant stored in the accumulator 31 are heated, and exhaust heat of the engine 12 (total of heat given by exhaust gas and heat taken from the engine 12 by cooling) is given to the refrigerant. For example, as the outdoor temperature is lower, the amount of heat absorbed by the outdoor heat exchanger 23 decreases, so the flow rate I ₄ is increased (flow rate I _{3 is} decreased), the exhaust heat to the refrigerant is increased, and the required heat quantity Q ₁ is increased. Secure.

The refrigerant flowing through the refrigerant line 25d is cooled in the liquid phase state in the accumulator 31 and then reaches the outdoor heat exchanger 23 functioning as an evaporator. When the outdoor air temperature is higher than a predetermined value, the outdoor heat exchanger is discharged. 23 fans 23
When a is driven, the refrigerant takes heat from the outside air and evaporates in the outdoor heat exchanger 23. Then, the refrigerant flows from the outdoor heat exchanger 23 through the refrigerant line 25e and the four-way valve 35 to the refrigerant line 25f and is introduced into the accumulator 31.

In the accumulator 31, the gas-phase refrigerant and the liquid-phase refrigerant are separated, and a part of the heat generated by the engine 12 is given to the liquid-phase refrigerant by the cooling water flowing through the cooling water line 27d. This heat causes a part of the liquid-phase medium to evaporate and vaporize. The gas-phase refrigerant in the accumulator 31 is sent to the sub accumulator 31a through the refrigerant line 25g, and is further sucked into the compressors 22A and 22B through the refrigerant line 25i. Compressors 22A, 22B
The state of the gas-phase refrigerant sucked in has returned to the state shown in FIG. 5 (pressure P ₁ , enthalpy i ₁ ), and this gas-phase refrigerant is compressed again by the compressors 22A and 22B and is the same as that described above. Repeat the action.

Therefore, until the refrigerant is depressurized by the expansion valve 30 and sucked by the compressors 22A and 22B, the refrigerant is given the gas heat of the engine 12 in the accumulator 31, and is placed in the outdoor heat exchanger 23. As a result, heat is given from the outside air, and the heat quantity of the refrigerant is eventually Q ₁ (= i ₁ −i
₃ ) It receives and evaporates and is further heated.

During the cooling operation, the ports 35a and 35b of the four-way valve 35 are in communication with each other, and the ports 35c and 35d are in communication with each other. In this case, the outdoor heat exchanger 23 functions as a condenser, and the indoor heat exchanger 29 functions as an evaporator.

Further, on the rear side of the outdoor unit 1, as shown in FIGS.
Further, as shown in FIG. 7, a transfer box 150 and a terminal chamber 151 are provided facing the rear plate 101. A breaker 950, a power line terminal block 951 and a communication line terminal block 952 are provided on the surface of the transmission box 150, and a power cord 953 is connected to the power line terminal block 951.

Inside the terminal chamber 151, a refrigerant pipe 25c,
The couplers 25co and 25do of 25d and the joint 123a of the external fuel line 123 are attached to the fuel line 122
2 solenoid valves 122c, zero governor (pressure reducing valve) 12
2b is provided, the fuel line 122 penetrates the intermediate plate 9, enters the engine room 10, and is connected to a flow control valve (not shown) provided in a gas mixer (not shown).

As described above, the inside of the outdoor unit 1 is connected to the engine 12
Is divided into an engine room 10 for accommodating a heat exchanger, an outdoor heat exchanger 23, a heat exchanger room 8 for accommodating a radiator 39, and a piping chamber 11 for accommodating an accumulator 31 in a refrigerant circuit.
Inside of 1 or outside of its vicinity (that is, each joint may be lowered to a position between the floor and the ground), an inlet / outlet A of the refrigerant with respect to the outdoor unit 1 and an inlet B of the fuel gas of the engine are arranged. In addition, the fuel pipe 122 from the fuel gas intake end B to the engine 12 in the engine room 10 is arranged so as to penetrate through the partition wall that partitions the engine room 10 and the piping room 11. By taking out the refrigerant pipe and the fuel pipe that are piped to the outside from the same location, it is possible to simplify the handling of the pipe and achieve a compact space required for the pipe.

A decompression diaphragm (not shown) is built in the zero governor 122b, and an atmospheric pressure introducing pipe 698 for guiding the atmosphere to one atmospheric pressure chamber of the diaphragm is also arranged so as to pass through the terminal chamber 151. The upper part of the terminal chamber 151 is opened toward the piping chamber 11 and the lower part is opened toward the ground, and serves as an indoor unit internal / external communication passage for each piping and power cord. In addition, the terminal chamber 151 serves as an introduction path for ventilation air.

The power cord 953 is also arranged so as to pass near the refrigerant inlet / outlet end A and the fuel gas intake end B adjacent to the portion.

The above is the description of the structure and function of the heat pump device as an example applied to the present invention. In addition,
With the couplers 25co and 25do provided in the middle of the refrigerant lines 25c and 25d as boundaries, the equipment, the refrigerant line, the cooling water line, and the like shown on the left and upper sides of FIG. 4 are all housed in the outdoor unit 1. There is. The indoor unit 103 including the indoor heat exchanger 29 and the expansion valve 30 is arranged in the building, while the outdoor unit 1 is mounted on the supporting device 40 and fixedly supported or movably supported, as described below. . Therefore, at least a part of each of the fuels in the refrigerant lines 25c and 25d is formed by a flexible tube. However,
In this embodiment, as will be described below, the tube is made of metal having no flexible body.

Next, the support of the heat pump device will be described. The outdoor unit 1 of the heat pump device includes the support device 40.
Supported by

The engine 12 and the compressor 22 have a bottom member 3
And a cover member C. The case member D is formed of the casing 2 described above.
Is composed of pillars 4 at four corners, beams (not shown) connecting the pillars 4, side plates 5, wire meshes 23 on the front and rear surfaces, a front plate 100, a rear plate 101, a top plate 6, and the like. The compressor 22 is fixed to the engine 12, and the engine 12 does not pass through the case member C through an opening provided in the bottom member 3 and
As shown in FIG. 4, the base 42, which is a base member, is supported via four first vibration absorbers 43. The air cleaner 15, the exhaust silencer 19, the lubricating tank 21, the cooling water tank 36, the water pump 26, the temperature-sensing switching valve 38a, the linear three-way valve 38b, and the radiator 39, which are the machines related to the engine 12, are all fixed to the case member D. Therefore, the pipe line 14,
The (exhaust) pipe 18, the cooling water lines 27a and 27b, the lubricating oil supply pipe (not shown), and the fuel gas supply pipe are wholly or partially flexible. On the other hand, the oil separator 28, which is a refrigerant device, the four-way valve 35, the outdoor unit heat exchanger 23, the accumulator 31, and the sub-accumulator 31a are also fixed to the case member D in the same manner. Therefore, all or part of the refrigerant lines 35a and 25i are made flexible.
Then, the case member D is supported on the base surface 41 on which the outdoor unit 1, which is the base member, is installed via the four support members 200.

In this embodiment, four first vibration absorbers 43 are provided, but at least three or more may be provided depending on the size of the outdoor unit 1 and the state of the installation location. In addition, the case member D includes four supporting members 200.
The base surface 41 is supported via the base surface 41, but the base surface 41 is supported via the three or more supporting members 200, or is directly mounted on the base surface 41, or the three or more second vibration absorbers. You may make it support on the base surface 41 in which the outdoor unit 1 which is a base member is installed via.

As described above, the engine 12 and the compressor 22 are housed in the case member D, and the support of the engine 12 and the compressor 22 and the support of the case member D are separated from each other, so that the engine 12 that is the vibration source is excited. It is possible to reduce the capacity of the first vibration absorber 43 that supports the. In addition, since the conventionally used upper side supporting member is not used, the weight of the supporting portion can be reduced. Further, since the compressor 22 is fixed to the engine 12, it suffices to support the engine 12 on a base member, which simplifies the support structure for the base member.

Next, the structure of the portion that supports the engine 12 and the compressor will be described in detail with reference to FIG. As shown in FIGS. 1 and 3, brackets 1001 are provided at four locations below the engine 12, and stays 1002 are attached to the brackets 1001 from below by bolts 3
By 05, it is clamped and fixed together with the upper end portion of the first vibration absorber 43.

The bottom member 3 arranged at the bottom of the outdoor unit 1 is provided with an opening 3a, the periphery of the opening 3a and the stay 10.
A seal member 1003 that partitions the inside and outside of the case member D is provided between the seal member 1002 and the case member 02. Seal member 1003
Is formed into a cylindrical shape, and in this embodiment, for example, urethane foam is used.

Each first vibration absorber 43 has an opening 3 in the bottom member 3.
penetrating through a, the lower flange 43e and the lower cylinder portion 4 in order from the bottom.
3d, spring 43f, upper cylinder portion 43c and upper flange 43
It consists of b. Lower flange 43e and lower cylinder portion 43d
Are integrated by welding 402, and both sides of the lower flange 43e are fixed to the base 42 by bolts 304. The lower end portion of the first vibration absorber 43 can be attached to and detached from the base 42 by a bolt 304. The base 42 is
It is attached to the base surface 41. Here, the foundation surface 41 is a concrete floor surface of the rooftop of the building, and the base 4 is attached to the studs 301 embedded in the foundation concrete 33.
2 is inserted and placed, the nut 303 is tightened and fixed through the washer 302, and the base 42 is attached to the floor surface.

Similarly, the upper cylinder portion 43c and the upper flange 43b are also integrated by welding 403, and both sides of the upper flange 43b are fixed to the bracket 1001 together with the stay 1002 by the bolts 305. The upper end of the vibration absorber 43 is attachable to and detachable from the bracket 1001 together with the stay 1002 by a bolt 305.

The lower cylinder portion 43d has a bottomed cylindrical shape with an open upper side, and the upper cylinder portion 43c has a bottomed cylindrical shape with an open lower side, and a spring 43f as an elastic body between them.
Is inserted. The upper cylinder 4 is provided on the lower cylinder 43d.
It is covered so as to surround 3c. Even if an elastic body, a viscous body (for example, an absorber having a piston provided with an orifice in a hydraulic cylinder), a viscoelastic body, or a combination thereof is inserted into the lower tubular portion 43d and the upper tubular portion 43c. Good. In this embodiment, the spring 43 is used as the elastic body.
Although f is used, it is not limited to this.

In this way, the load on the engine 12 and the compressor 22 is reduced by the bracket 1001 and the stay 1002.
Through, and is supported by the first vibration absorber 43. Vibration generated by operating the engine 12 is damped (in a non-vibration state) by the spring 43f that contacts the upper cylinder part 43c and the lower cylinder part 43d. As a result, the base surface 41 is isolated from vibrations, and the lower cylinder portion 43d and the upper cylinder portion 43c serve as guides when the spring 43f vibrates.

A scale 43a for measuring the displacement in the vertical direction is engraved on the outer peripheral surface of the lower cylinder portion 43d of the vibration absorber 43. The scale 43a allows the height of the upper cylinder portion 43c, that is, the height of the outdoor unit 1 supported by the vibration absorber 43 to be known.

In this way, by supporting the engine 12 and the compressor 22 of the outdoor unit 1 by the plurality of first vibration absorbers 43, the first vibration absorber 43 is replaced according to the frequency to be vibration-isolated. A suitable first vibration absorber 43 can be provided according to the installation situation. Further, by providing the end portion of the first vibration absorber 43 by penetrating the opening 3a of the bottom member 3, the first vibration absorber 43 is positioned inside the case member D of the outdoor unit 1, so that the first vibration absorber 43 is positioned inside the case member D of the outdoor unit 1. It is easy to secure a space for disposing the vibration absorber 43. Further, the distance D1 between the outdoor unit 1 case member D and the base surface 41 can be shortened, the installation height of the outdoor unit 1 can be suppressed by that amount, and the center of gravity of the outdoor unit 1 also becomes low. A simple vibration-proof structure that reduces the occurrence of amplitude with respect to the lateral vibration of the outdoor unit 1 and reduces the deformation and fatigue of the refrigerant pipe connecting the outdoor unit 1 and the indoor unit due to vibration can be reliably supported. it can.

Assembling of the portion for supporting the engine 12 and the compressor is performed by adhering the end portion of the sealing member 1003 of urethane foam made of urethane foam to one of the stay 1002 or the bottom member 3 in the factory. The stay 1002 is fixed to the bracket 1001 with the bolt 305, and the stay 1
The flange 1002a of 002 is a spacer 1 indicated by a two-dot chain line
004 through the bottom member 3 and the fixing bolt 100
5 is inserted into the hole 1002b of the flange 1002a and screwed into the screw hole 3b of the bottom member 3 to be fixed. At this time, the seal member 1003 is compressed and deformed by the stay 1002 and the bottom member 3, and by shipping in this state, the engine 12 and the compressor 22 fixed to the engine 12 in the case member D during transportation are removed. I don't dance. Compressor 2
The pipes from 2, the intake pipe to the engine 12, the exhaust pipe and the like are prevented from being damaged. When the outdoor unit 1 is installed, the fixing bolt 1005 is removed, and the screw hole 3b of the bottom member 3 where the below-described stopper bolt 1007 is not attached,
The plug 1006 is fitted from below.

When the outdoor unit 1 is installed, as shown in FIG. 10, the fixing bolts 1 are installed at least at one place.
005 is removed and the stopper bolt 1007 is attached to the bottom member 3
Then, the lock nut 1008 is screwed and fixed to the tip end portion of the stopper bolt 1007. A washer 1009 may be attached to the head of the stopper bolt 1007 to form a stopper mechanism. In this embodiment, the stopper mechanism as described above is provided, a gap D2 is provided between the bottom member 3 and the flange 1002a of the stay 1002, and the flange 1002a of the stay 1002 is subjected to normal vibration, for example, the engine 12 There is no contact with the washer 1009 due to the vibration caused by. However, when the outdoor unit 1 largely shakes due to an earthquake or a strong wind having a seismic intensity equal to or higher than a weak earthquake, the flange 1002a of the stay 1002 abuts the washer 1009, and the engine 12 is prevented from swinging with a larger amplitude. As a result, the engine 12 is prevented from collapsing, and the pipes 25a and 25i between the equipment fixed to the outdoor unit 1 and the compressor 22, the cooling water lines 27 and 27b, the pipe 14, the pipe 18, and the fuel It is possible to prevent the gas supply pipe and the lubricating oil supply pipe from being subjected to a force beyond their service life.

Next, the structure of the portion that supports the case member D will be described in detail with reference to FIG. The support tool 200 includes a tubular body 201, a lower flange 202, and an upper flange 203. The lower portion of the tubular body 201 and the lower flange 202 are fixed by welding 204, and the upper portion of the tubular body 201 and the upper flange 203 are welded 205. It is fixed. The lower flange 202 is inserted through the studs 206 embedded in the foundation concrete 33 and placed, and the washer 207 is installed.
It is fixed to the foundation concrete 33 by tightening and fixing it with the nut 208 through. The upper flange 203 is fixed to the bottom member 3 with bolts 209.

The installation work of the outdoor unit 1 is as follows. First, the outdoor unit 1 is jacked up at a predetermined position.

While the support tool 200 is fixed to the foundation concrete 33 by the studs, the first support is used as described above.
The vibration absorber 43 is attached. Then, it is jacked down to place the bottom member 3 on the support member 200, and the support device 200 is fixed to the bottom member 3.

The case member D is fixed to the foundation concrete 33 via the support tool 200. As a result, the refrigerant device attached to the case member D (for example, the oil separator 28, the four-way valve 35, the outdoor heat exchanger 29, the accumulator 31, the sub accumulator 31a), the refrigerant line connecting them and the refrigerant line reaching the indoor heat exchanger 29. Two
All of 5c and 25d are integrated with the foundation concrete 33. As a result, the force due to vibration does not act on the refrigerant lines 25c and 25d. Therefore, the refrigerant lines 25c, 2
5d may be an inflexible metal pipe.

Even when the second vibration absorber (an elastic body, a viscous body, a viscoelastic body, or a combination thereof) is arranged in place of the support tool 200, the case member D and the refrigerant device are the same as the engine 12. Since it does not act as a vibration source, it does not vibrate significantly, and the refrigerant lines 25c, 2c
Even if 5d is a flexible pipe, a long load can be secured without applying a large load. Further, the capacity of the second vibration absorber for damping vibration can be reduced. If the height position of the bracket 1001 is set upward, a sufficient space for the first vibration absorber 43 can be secured,
The bottom member 3 may be placed directly on the foundation concrete 33.

According to the present invention, the electric motor and the casings of the compressor driven by the electric motor to circulate the refrigerant are fixed to each other to form one unit, and this unit is the same as the above-described embodiment. While being housed in a case member composed of a cover member and a cover member, the base member is supported through at least three or more first vibration absorbers without passing through the case member through an opening provided in the bottom member. , Case member directly or 3
The foundation member may be supported via one or more second vibration absorbers. In this way, the electric motor and the compressor are combined into one unit, the unit is housed in the case member, and the support of the unit and the support of the case member are separated, whereby the capacity of the support portion can be reduced. . Further, similarly to the above-described embodiment, by disposing a seal member that partitions the inside and outside of the case member in the opening, it is difficult for sound in the engine room to leak to the outside, and the seal member prevents rainwater and the like from the opening of the bottom member. Intrusion is prevented.

[0057]

As described above, according to the first aspect of the present invention, the engine and the compressor are housed in the case member, and the engine and the compressor are separated from the case member and the case member by supporting the engine member. The capacity of the support part of the compressor can be reduced.

According to the second aspect of the present invention, since the compressor is fixed to the engine, it suffices to support the engine on the base member, which simplifies the structure for supporting the base member.

According to the third aspect of the present invention, the electric motor and the compressor are combined into one unit, the unit is housed in the case member, and the unit support and the case member support are separated from each other. The capacity of the support portion of the compressor can be reduced.

According to the fourth aspect of the invention, since the inside and outside of the case member are blocked by the seal member, it is difficult for sound in the engine room to leak to the outside, and the seal member can prevent rainwater and the like from entering through the opening. .

[Brief description of the drawings]

FIG. 1 is a rear view showing an outdoor unit of a heat pump device.

FIG. 2 is a side view showing an outdoor unit of the heat pump device.

FIG. 3 is a cross-sectional view showing an outdoor unit of a heat pump device.

FIG. 4 is a diagram showing a refrigerant circulation system of a heat pump device.

FIG. 5 is a diagram showing a heat exchange cycle of a refrigerant in the heat pump device.

FIG. 6 is a rear view showing a part of the outdoor unit of the heat pump device in a cutaway manner.

FIG. 7 is a sectional view taken along the line VII-VII in FIG. 3;

8 is a cross-sectional view showing the heat pump device taken along the line VIII-VIII in FIG.

FIG. 9 is a sectional view taken along line IX-IX in FIG. 8;

10 is a sectional view of another embodiment of a portion supporting the engine and the compressor, taken along line XX of FIG.

11 is a cross-sectional view taken along the line XI-XI of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outdoor unit 2 Casing 3 Bottom member 3a Opening provided in the bottom member 3 Engine 22 Compressor 40 Support device 41 Base surface 43 Vibration absorber C Cover member D Case member 200 Support tool

Claims (4)

[Claims] 1. A heat pump device for circulating a refrigerant by a compressor driven by an engine, wherein the engine and the compressor are housed in a case member composed of a bottom member and a cover member, and an opening provided in the bottom member. At least 3 without passing through a case member
The base member is supported via one or more first vibration absorbers, and the case member is supported on the base member directly or via three or more second vibration absorbers. And heat pump equipment. 2. The heat pump device according to claim 1, wherein the compressor is fixed to the engine. 3. An electric motor and casings of a compressor which is driven by the electric motor and circulates a refrigerant are fixed to each other to form one unit, and the unit is housed in a case member composed of a bottom member and a cover member. A base member is supported through at least three or more first vibration absorbers without passing through a case member through an opening provided in the bottom member, and the case member is directly or three or more. The heat pump device, characterized in that the base member is supported via the second vibration absorber. 4. The heat pump device according to claim 1, wherein a seal member for partitioning the inside and the outside of the case member is arranged in the opening.