JP5452426B2 - Outdoor unit and heat pump system - Google Patents

Description

  The present invention relates to a multi-type outdoor unit to which an indoor unit of an air conditioner that is operated for cooling and heating and a water heater are connected, and a heat pump system including the outdoor unit.

The multi-type outdoor unit is provided with a valve for connecting each of the indoor unit of the air conditioner and the water heater. The operation of connecting the pipe connected to the indoor unit of the air conditioner and the pipe connected to the water heater to the valve of the outdoor unit is performed at the installation site of the air conditioner or the like. Therefore, it is desirable that the valve is disposed at a position where the operation is easy at the time of installation.
Moreover, when a refrigerant | coolant flows through the inside of piping, a vibration generate | occur | produces in piping and there exists a possibility that the part connected to the valve | bulb may loosen. Therefore, when connecting piping to the valve, the valve needs to be firmly fixed so that it can be firmly tightened with a spanner or the like.
The outdoor unit needs to be downsized to reduce the installation space. For this reason, the space for installing the equipment in the outdoor unit is limited, and some arrangement is required for the arrangement.

  Patent Document 1 describes an air conditioner in which a valve is disposed on a side surface of an outdoor unit. Patent Document 2 describes an air conditioner in which a valve is disposed on the back surface of an outdoor unit. In Patent Documents 1 and 2, a valve is fixed to a side panel or a back panel of the outdoor unit.

Japanese Patent Laid-Open No. 4-236019 JP 2007-303753 A JP 2003-254563 A

In the outdoor units described in Patent Documents 1 and 2, valves are arranged on the side surface and the back surface. Depending on the location where the outdoor unit is installed, there are house walls on the side and back, which makes installation difficult.
It is an object of the present invention to provide a downsized outdoor unit that is easy to install.

The outdoor unit according to the present invention is:
A unit body whose front side can be opened and closed;
A first fixing member provided on the front side of the unit body and fixed to the unit body;
The second fixing member provided on the front side inside the unit body and fixed to the first fixing member;
An air conditioner connection portion to which piping of an indoor unit of an air conditioner that performs cooling operation and heating operation is connected, and the air conditioner connection portion attached to the first fixing member;
A hot water heater connecting portion to which a pipe of the hot water heater is connected, the hot water heater connecting portion attached to the second fixing member.

In the outdoor unit according to the present invention, the air conditioner connection part and the water heater connection part are arranged on the front side of the unit main body, so that the installation work is easy.
In addition, the air conditioner connection part where the pressure range of the flowing refrigerant is large and a large load is applied is attached to the first fixing member fixed to the unit body, so that it is tightened by applying sufficient force with a spanner or the like, Piping can be fixed. On the other hand, since the load applied to the water heater connection portion is smaller than that of the air conditioner connection portion, it is not necessary to apply a force so as to fix the pipe. Therefore, the hot water heater connection portion is attached to the second fixing member fixed to the first fixing member. Thereby, arrangement | positioning of a water heater connection part can be performed flexibly, the effective utilization of the space in a unit main body can be aimed at, and an outdoor unit can be reduced in size.

1 is a configuration diagram of a heat pump system 1 according to Embodiment 1. FIG. The perspective view of the outdoor unit 2. FIG. The enlarged view of the vicinity of the air-conditioning valves 16 and 17 and the hot water supply valves 18 and 19 in FIG. The figure which looked at the valves 16 and 17 for air conditioning and the valves 18 and 19 for hot water supply from the front. The figure which shows the state which connected the piping 5 and 6 to the valve | bulb 16, 17, 18, and 19. FIG.

Embodiment 1 FIG.
FIG. 1 is a configuration diagram of a heat pump system 1 according to the first embodiment.
In the heat pump system 1, an indoor unit 3 of an air conditioner and a water heater 4 are connected to one outdoor unit 2 by pipes 5 and 6. Here, the indoor unit 3 of the air conditioner is operated in both a cooling operation and a heating operation.
That is, in the heat pump system 1, the cooled or heated refrigerant is sent from the outdoor unit 2 to the indoor unit 3 of the air conditioner via the pipe 5. The indoor unit 3 of the air conditioner heats and exchanges heat between the refrigerant sent from the outdoor unit 2 and the room air. And the refrigerant | coolant heat-exchanged with indoor air is sent to the outdoor unit 2 via the piping 5 from the indoor unit 3 of an air conditioner.
Further, the heated refrigerant is sent from the outdoor unit 2 to the water heater 4 through the pipe 6. The water heater 4 makes hot water by exchanging heat between the refrigerant and water sent from the outdoor unit 2. Then, the refrigerant heat-exchanged with water is sent from the water heater 4 to the outdoor unit 2 through the pipe 6.

FIG. 2 is a perspective view of the outdoor unit 2.
In the outdoor unit 2, an internal space is divided into two spaces by a partition plate 13 in two spaces arranged on the left and right sides of the blower chamber 11 and the machine chamber 12. Of the outer panels constituting the outdoor unit 2 main body, the outer panel from the front to the middle of the side on the machine room 12 side is removable (can be opened and closed). In FIG. 2, the state which removed the outer panel from the front in the machine room 12 side to the middle of a side surface is shown.
In the machine room 12 of the outdoor unit 2, a refrigerant pipe that forms a refrigerant flow path by connecting a device that constitutes a vapor compression refrigeration cycle, such as the compressor 14, or a device that constitutes the vapor compression refrigeration cycle. 15 is stored. The machine room 12 includes two air conditioning valves 16 and 17 (air conditioner connection parts) for connecting the two pipes 5 connected to the indoor unit 3 of the air conditioner to the refrigerant pipe 15, Two hot water supply valves 18 and 19 (water heater connection portions) for connecting the two pipes 6 connected to the water heater 4 to the refrigerant pipe 15 are accommodated. Furthermore, although omitted in FIG. 2, an electrical component box in which electrical components for controlling the compressor 14 and the like are accommodated is accommodated in the machine room 12 at a position indicated by a broken line 20.

FIG. 3 is an enlarged view of the vicinity of the air conditioning valves 16 and 17 and the hot water supply valves 18 and 19 in FIG. 4 is a front view of the air conditioning valves 16 and 17 and the hot water supply valves 18 and 19 (viewed in the direction A in FIG. 2).
The air conditioning valves 16 and 17 are attached to a valve bed 22 (first fixing member), which is a sheet metal part having both ends fixed to the partition plate 13 and the outer panel 21 on the side surface of the machine room 12 by screws or the like. It is attached. The hot water supply valves 18 and 19 are respectively attached to valve bed supports 23 and 24 (second fixing members) which are sheet metal parts fixed to the valve bed 22. The valve bed supports 23 and 24 are fixed to the valve bed 22 by spot welding, for example, from the viewpoint of manufacturing cost.
The valve bed 22 is arranged in order of the valve bed support 23, the air conditioning valve 16, the valve bed support 24, and the air conditioning valve 17 from the left, and the air conditioning valves 16, 17 and the hot water supply valves 18, 19 are arranged on the left and right sides. Alternating in the direction. Further, the air conditioning valves 16 and 17 and the hot water supply valves 18 and 19 are shifted in the vertical direction by the valve bed supports 23 and 24. That is, the air conditioning valves 16 and 17 and the hot water supply valves 18 and 19 are arranged in a staggered manner.

FIG. 5 is a view showing a state in which the pipes 5 and 6 are connected to the valves 16, 17, 18 and 19.
The pipes 5 and 6 are drawn into the interior of the outdoor unit 2 from the hole 25 of the outer panel shown in FIG. 2, and are connected to the lower side of the valves 16, 17, 18, and 19 as shown in FIG. The pipes 5 and 6 are fixed to the valves 16, 17, 18 and 19 by turning and tightening the connecting portion in the horizontal direction with a tool such as a spanner.

Here, the operation of connecting the pipes 5 and 6 to the valves 16, 17, 18 and 19 is performed at an installation site of an air conditioner or the like. Depending on the installation location, there are external walls of the building on the back side and side of the outdoor unit 2, and only the front side may be vacant. In this case, when the valves 16, 17, 18, and 19 are provided on the back surface and the side surfaces, it is difficult to connect the pipes 5 and 6.
However, in the outdoor unit 2, as shown in FIG. 2, the valves 16, 17, 18, and 19 are provided on the front side, and the connection work of the pipes 5 and 6 is easy.

In addition to the work of connecting the pipes 5, 6 to the valves 16, 17, 18, 19, replacement work of the compressor 14, maintenance work of electrical parts stored in the electrical component box, etc. are performed at the installation site. The Therefore, the compressor 14 and the electrical component box are also arranged on the front side in the same manner as the valves 16, 17, 18, and 19.
In particular, since the compressor 14 is a heavy device among the devices housed in the outdoor unit 2, the compressor 14 is preferably disposed on the lower side in consideration of the balance of the outdoor unit 2. On the other hand, since the electrical components are vulnerable to water and the like, the electrical component box is preferably arranged on the upper side. Therefore, the valve bed 22 is disposed between the compressor 14 and the electrical component box in the vertical direction, and the valves 16, 17, 18, and 19 are disposed between the compressor 14 and the electrical component box.
In addition, when the compressor 14 is exchanged, a space that allows the compressor 14 to be taken in and out is required. Therefore, in the outdoor unit 2, the compressor 14 is disposed near the blower chamber 11 in the machine room 12, and the valves 16, 17, 18, and 19 are disposed on the opposite side (side outer panel side), thereby The compressor 14 and the valves 16, 17, 18, 19 are shifted. That is, when viewed from the front side, the compressor 14 and the valves 16, 17, 18, and 19 are shifted from side to side and do not overlap. Thereby, it is prevented that the compressor 14 cannot be taken in and out by the valves 16, 17, 18, 19 and the pipes 5, 6 connected to the valves 16, 17, 18, 19.

In addition, as described above, the pipes 5 and 6 are fixed to the valves 16, 17, 18, and 19 by tightening the connection portion by turning it horizontally with a tool such as a spanner. Therefore, a space in which the spanner or the like can be rotated is required around the valves 16, 17, 18, and 19 in the horizontal direction. Here, by arranging the valves 16, 17, 18, and 19 in a staggered manner, there is space on the front side and the left and right sides of the valves 16, 17, 18, and 19, and a spanner or the like can be turned. .
As shown in FIG. 5, when the pipe 6 is connected to the hot water supply valves 18, 19, if the pipe 5 is connected to the air conditioning valves 16, 17, the space on the right side of the hot water supply valves 18, 19 is reduced. The pipe 5 is crushed. Therefore, at the time of installation work, it is preferable to connect the pipe 6 to the hot water supply valves 18 and 19 first, and then connect the pipe 5 to the air conditioning valves 16 and 17.

  In the outdoor unit 2, the outer panel from the front side of the machine room 12 to the middle of the side surface can be removed for maintenance work or the like. Therefore, when arranging the valves 16, 17, 18, and 19 on the front side, the valves 16, 17, 18, and 19 cannot be attached to the outer panel as in Patent Documents 1 and 2. Therefore, the valves 16, 17, 18, and 19 are attached to the front side using the valve bed 22 and the valve bed supports 23 and 24.

In addition, when a refrigerant | coolant flows through the inside of the piping 5 and 6, a vibration generate | occur | produces in the piping 5 and 6, and there exists a possibility that the part connected to the valves 16, 17, 18, and 19 may loosen. Therefore, it is necessary to firmly connect the pipes 5 and 6 to the valves 16, 17, 18 and 19. In order to securely connect the pipes 5, 6 to the valves 16, 17, 18, 19, it is necessary to strongly tighten them with a spanner or the like when connecting the pipes 5, 6. Therefore, the valves 16, 17, 18, and 19 must be fixed so as to withstand the force of tightening with a spanner or the like.
The valve bed 22 is fixed to the main body of the outdoor unit 2 with screws, and the air conditioning valves 16 and 17 are fixed to the valve bed 22. For this reason, the air conditioning valves 16 and 17 can have a strength sufficient to withstand the force of tightening with a spanner or the like. On the other hand, the valve bed supports 23 and 24 are fixed to the valve bed 22 by spot welding or the like, and the hot water supply valves 18 and 19 are fixed to the valve bed supports 23 and 24. Therefore, the hot water supply valves 18 and 19 cannot be as strong as the air conditioning valves 16 and 17.
It is also possible to directly fix the valves 16, 17, 18 and 19 to the valve bed 22. However, for example, when the valves 16, 17, 18, 19 are fixed to the valve bed 22 in a horizontal row, the compressor 14 and the valves 16, 17 are arranged in the left-right direction so as not to disturb the replacement work of the compressor 14. , 18 and 19 cannot be provided with a space in which a spanner or the like can be rotated around the horizontal direction of the valves 16, 17, 18 and 19. In addition, when the valve bed 22 and the valve bed supports 23 and 24 are integrally formed, the yield decreases.
Accordingly, the valve unit supports 23 and 24 are used to reduce the size of the outdoor unit 2 and improve the yield by effectively using the space at the expense of some strength.

Here, since both the cooling operation and the heating operation are performed in the indoor unit 3 of the air conditioner, refrigerant having a wider pressure (temperature) than the hot water heater 4 is sent from the outdoor unit 2 and returns to the outdoor unit 2. Come. That is, a refrigerant having a wider pressure flows in the pipe 5 connecting the indoor unit 3 of the air conditioner than in the pipe 6 connecting the water heater 4.
For the water heater 4, the superheated gas refrigerant is sent from the outdoor unit 2, and the supercooled liquid refrigerant returns to the outdoor unit 2. On the other hand, in the indoor unit 3 of the air conditioner, in the heating operation, the refrigerant in the superheated gas state is sent from the outdoor unit 2 as in the water heater 4, and the refrigerant in the supercooled liquid state is sent from the outdoor unit. Come back to 2. However, in the cooling operation, the gas-liquid two-phase refrigerant is sent from the outdoor unit 2, and the refrigerant in a saturated gas or liquid mixture returns from the outdoor unit 2. That is, the refrigerant | coolant of various states flows into the piping 5 which connects the indoor unit 3 of an air conditioner compared with the piping 6 which connects the water heater 4. FIG.
That is, the pipe 5 has a larger pressure width of the flowing refrigerant and various states than the pipe 6. Therefore, the pipe 5 is more likely to generate large vibrations than the pipe 6, and the connection portions to the air conditioning valves 16 and 17 are likely to loosen. Therefore, the pipe 5 must be connected more firmly than the pipe 6. Therefore, the air conditioning valves 16 and 17 are fixed to the valve bed 22, and the hot water supply valves 18 and 19 are fixed to the valve bed supports 23 and 24 so that the air conditioning valves 16 and 17 have high strength. Thereby, the valve bed supports 23 and 24 are used, and the influence of sacrificing the strength is reduced.

  In the outdoor unit 2, the valves 16, 17, 18, and 19 are accommodated in the main body of the outdoor unit 2 using the valve bed 22 and the valve bed supports 23 and 24. There is no part which protruded from the outdoor unit 2 main body like. Therefore, not only the installation space in consideration of the protruding portion is unnecessary, but also the design is beautiful. Further, it is not necessary to provide a cover for covering the protruding valve or a screw for fixing the cover as in the outdoor unit of Patent Document 1, and a recessed portion is formed in the outer panel as in the outdoor unit of Patent Document 2. There is no need to provide it.

  Further, both ends of the valve bed 22 are connected to the partition plate 13 and the outer panel 21. Therefore, there is also an effect of increasing the strength of the outdoor unit 2 main body.

  In the outdoor unit 2, air conditioning valves 16 and 17 for connecting the pipe 5 are arranged side by side, and hot water supply valves 18 and 19 for connecting the pipe 6 are arranged side by side. Therefore, it is easy to understand where the pipes 5 and 6 should be connected, and an installation error can be prevented in the operation of connecting the pipes 5 and 6.

  DESCRIPTION OF SYMBOLS 1 Heat pump system, 2 Outdoor unit, 3 Indoor unit of air conditioner, 4 Water heater, 5, 6 piping, 11 Blower room, 12 Machine room, 13 Partition plate, 14 Compressor, 15 Piping, 16, 17 Air conditioning valve , 18, 19 Hot water supply valve, 20 dashed line, 21 outer panel, 22 valve bed, 23, 24 valve bed support, 25 holes.

Claims (5)

A unit body whose front side can be opened and closed;
A first fixing member provided on the front side of the unit body and fixed to the unit body;
A second fixing member provided on the front side in the unit main body and fixed to the first fixing member;
An air conditioner connection portion having two connection portions on an inlet side and an outlet side of a refrigerant, to which a pipe of an indoor unit of an air conditioner performing a cooling operation and a heating operation is connected, wherein the first fixing member An air conditioner connection attached to the
A water heater connecting portion having two connecting portions on an inlet side and an outlet side of the refrigerant, to which a pipe of a water heater is connected, the water heater connecting portion attached to the second fixing member ,
The air conditioner connection part and the water heater connection part are alternately arranged in the left-right direction and arranged shifted in the up-down direction when viewed from the front side of the unit body. A featured outdoor unit. The unit body includes a partition plate that divides the internal space into two spaces arranged on the left and right sides of the blower chamber and the machine chamber,
2. The outdoor unit according to claim 1, wherein one end of the first fixing member is fixed to the partition plate, and the other end is fixed to a side surface of the unit body on the machine room side. On the front side of the machine room, a compressor is disposed on the lower side, and an electrical component box that houses electrical components for controlling the compressor is disposed on the upper side.
The outdoor unit according to claim 2, wherein the first fixing member is provided between the compressor and the electrical component box in a vertical direction. The outdoor unit according to claim 3, wherein the air conditioner connection portion and the hot water heater connection portion are arranged to be shifted in the left-right direction with respect to the compressor. A heat pump system comprising a water heater, an indoor unit of an air conditioner that performs cooling operation and heating operation, and an outdoor unit,
The outdoor unit is
A unit body whose front side can be opened and closed;
A first fixing member provided on the front side of the unit body and fixed to the unit body;
A second fixing member provided on the front side in the unit main body and fixed to the first fixing member;
An air conditioner connection portion having two connection portions on an inlet side and an outlet side of a refrigerant, to which a pipe of an indoor unit of the air conditioner is connected, the air conditioner being attached to the first fixing member Machine connection,
A water heater connecting portion having two connecting portions on an inlet side and an outlet side of the refrigerant, to which piping of the water heater is connected, and a water heater connecting portion attached to the second fixing member;
Prepared,
The air conditioner connection part and the water heater connection part are alternately arranged in the left-right direction and arranged shifted in the up-down direction when viewed from the front side of the unit body. A featured heat pump system.

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