JP4812868B2 - Hot water supply outdoor unit and hot water supply air conditioner - Google Patents

Description

  The present invention relates to a hot water supply outdoor unit of a hot water supply air conditioner that performs heat pump type cooling and heating and hot water supply using the heat, and a hot water supply air conditioner that uses this hot water supply outdoor unit, and in particular, to an improvement in the structure thereof. It is.

  A conventional hot water supply outdoor unit has a two-stage stacked structure in which a hot water supply unit including a hot water heat exchanger is installed on an outdoor unit including a refrigeration cycle heat exchanger (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 3-1057 (page 3, FIGS. 1 and 2)

  The above-mentioned hot water supply outdoor unit is higher in height than a general air conditioning outdoor unit without a hot water supply unit, that is, the height of the hot water supply outdoor unit is equal to the height of the heat exchanger for the refrigeration cycle and the heat exchanger for hot water. There is a problem that the installation location is limited because the height is high and the height is high.

  The present invention was made to solve the above problems, and without increasing the cooling and heating capacity and hot water supply capacity compared to the conventional two-stage stacked structure, it is possible to suppress the increase in height and installation area, An object is to obtain a hot water supply outdoor unit having the same height and installation area as a general air conditioning outdoor unit and a hot water supply air conditioner using this hot water supply outdoor unit.

The outdoor unit of the present invention includes a casing formed by an outdoor unit base, a front plate, a side plate, and an upper plate, and heat exchange for a refrigeration cycle that is erected on the periphery of the outdoor unit base that constitutes the bottom surface of the casing. , A heat exchanger for hot water housed in a container provided on the base of the outdoor unit, a cover that covers the upper surface of the container, and a stand that stands on the cover so that the inside of the housing is divided into a fan room and a machine room And a fan housed in the fan chamber and provided on the lid so as to face the heat exchanger for the refrigeration cycle, and the compressor is installed on the lid in the machine room, and the lower part of the fan chamber The hot water heat exchanger is extended from the compressor to the lower part of the compressor, and the container is composed of an outdoor unit base and a hot water heat exchanger housing wall provided on the outdoor unit base, and the hot water heat exchanger housing wall is so as to surround the both end portions or four corners of the hot water heat exchanger, setting of the compressor in the lid Range is obtained by less than the height of the portion corresponding to the fan chamber the height of the portion corresponding to the machine room to be lower than the installation range of the fan in the lid.

In the outdoor unit of the present invention, the compressor is installed on the lid in the machine room, a heat exchanger for hot water is extended from the lower part of the fan chamber to the lower part of the compressor, and the container is placed on the outdoor unit base and the outdoor unit base. The hot water heat exchanger housing wall surrounds both ends or four corners of the hot water heat exchanger, and the compressor installation range in the lid is Since the height of the part corresponding to the machine room is made lower than the height of the part corresponding to the fan room so as to be lower than the installation range of the fan, the height from the outdoor unit base is the refrigeration on the outdoor unit base. It becomes the height of the cycle heat exchanger, and it is possible to form a hot water supply outdoor unit that is as low as a general air-conditioning outdoor unit while suppressing the height.

FIG. 3 is a perspective view showing a front side of a hot water supply outdoor unit body of the hot water supply outdoor unit according to Embodiment 1 of the present invention. It is a disassembled perspective view of the hot-water supply outdoor unit main body of FIG. It is a perspective view which shows the inside of the hot water supply outdoor unit main body of FIG. It is sectional drawing seen from the side of the hot-water supply outdoor unit main body of FIG. It is a perspective view which shows the heat exchanger for hot water inside the hot water supply outdoor unit main body of FIG. It is a perspective view which shows the inside of the hot-water supply outdoor unit main body of the hot-water supply outdoor unit of Embodiment 2 of this invention. It is sectional drawing seen from the side of the hot-water supply outdoor unit main body of the hot-water supply outdoor unit of Embodiment 2 of this invention.

Embodiment 1 FIG.
1 is a perspective view showing a front side of a hot water supply outdoor unit main body of a hot water supply outdoor unit according to Embodiment 1 of the present invention, and FIG. 2 is an exploded perspective view of the hot water supply outdoor unit main body of FIG. FIG. 4 is a perspective view showing the inside of the hot water supply outdoor unit body of FIG. 1, FIG. 4 is a cross-sectional view seen from the side of the hot water supply outdoor unit body of FIG. 1, and FIG. It is a perspective view which shows the heat exchanger for warm water inside a main body.
In these drawings, a hot water supply outdoor unit body 1 (hereinafter referred to as a main body 1) of a hot water supply outdoor unit is an outdoor unit base 2 serving as a bottom plate, a front panel 3 serving as a front plate and a side plate, a side plate and a back plate. A refrigeration cycle heat exchanger 9, a blower fan (not shown), a fan motor (not shown), and hot water heat exchange are housed in a substantially rectangular parallelepiped casing formed by the side panel 4 and the top panel 5 serving as an upper surface plate. The container 10 and the compressor 15 are accommodated. And the inlet 3b is provided in the blower outlet 3a of the front panel 3, the side plate of the front panel 3, and the back side of a housing | casing. Further, a leg 2 a for installing the main body 1 is provided at the lower part of the outdoor unit base 2.

  The refrigeration cycle heat exchanger 9 is a plate-like body that is formed of a heat transfer tube, a heat radiating heat absorption fin, and the like, and whose external appearance is bent substantially at a right angle on the whole. And this plate-like body is erected along the side from the front side to the back side of the one side end on the rectangular outdoor unit base 2, and then along the back side on the back side of the rear end. It is erected continuously. Note that the plate-like body is erected at the rear end portion up to a separator 7 that partitions a fan chamber described later from the machine chamber.

The hot water heat exchanger 10 is accommodated on the outdoor unit base 2 so as to surround almost the entire space on the outdoor unit base 2 except for one side end and the rear end where the heat exchanger 9 for the refrigeration cycle is disposed. The hot water heat exchanger accommodating wall 11 is erected. And as shown in FIG. 5, the heat exchanger 10 for warm water is accommodated in the container formed with the outdoor unit base 2. As shown in FIG.
A lid 12 for closing the container is provided on the upper part of the heat exchanger housing wall 11 for hot water.
The hot water heat exchanger accommodating wall 11 may surround both ends or four corners instead of the entire circumference of the hot water heat exchanger 10.

On the lid 12, a separator 7 that bisects the inside of the housing left and right is erected from the front side to the back side of the lid 12. As shown in FIGS. 2 and 3, the separator 7 is divided into a fan chamber occupying the main volume on the left side when viewed from the front and a machine chamber on the right side by the separator 7. A refrigeration cycle heat exchanger 9, a blower fan, a fan motor, and the like are accommodated in the fan chamber, and a compressor 15 and the like are accommodated in the machine chamber.
The compressor 15 is installed on the lid 12 installed on the upper part of the heat exchanger housing wall 11 for hot water in the machine room. That is, the hot water heat exchanger accommodating wall 11 is a support leg for supporting the compressor 15, and the lid 12 is a compressor base.
As shown in FIG. 3, the height of the heat exchanger housing wall 11 for the hot water is slightly lowered on the machine room side within a range that does not interfere with the housing of the heat exchanger for hot water 10, and the height of the installed lid 12 is increased. The thickness may be lowered. In this case, even the compressor 15 having a high height or the heat exchanger 9 for a refrigeration cycle having a low height can reliably prevent the compressor 15 from exceeding the height of the heat exchanger 9 for a refrigeration cycle.

The refrigeration cycle circuit and the hot water circuit are the same as usual.
The refrigeration cycle circuit includes an outdoor unit (incorporated in a hot water supply outdoor unit) in which a compressor 15, a four-way switching valve (not shown), a refrigeration cycle heat exchanger 9 and the like shown in the figure are connected to a refrigerant pipe, and an indoor heat exchanger. An indoor unit (an indoor unit not shown) having a refrigerant pipe is connected to form a refrigeration cycle.
The hot water circuit pipe-connects a water supply pump (not shown), a hot water heat exchanger 10 (installed in a hot water supply outdoor unit), a hot water tank (not shown), and the like.
Here, the hot water heat exchanger 10 is connected in parallel to the heat exchanger on the condensation side of the refrigeration cycle by a refrigerant pipe, and heat exchange is performed between the high-temperature gas refrigerant from the compressor 15 and water in the pipe to condense the refrigerant. And make hot water.

This hot water supply outdoor unit is provided with a refrigeration cycle heat exchanger 9 on the outdoor unit base 2 around the outdoor unit base 2, and almost all except the installation space for the refrigeration cycle heat exchanger 9 of the outdoor unit base 2. A hot water heat exchanger housing wall 11 is erected so as to surround the space, and the hot water heat exchanger 10 is housed in a container formed by the outdoor unit base 2 and the hot water heat exchanger housing wall 11. Since the lid 12 provided on the container is used as a compressor base and the compressor 15 is installed on the compressor base in the machine room, the refrigeration cycle heat exchanger 9 and the hot water heat exchanger 10 are both outdoor unit bases. The compressor 15 is installed on a compressor base which is a lid 12 on the heat exchanger accommodating wall 11 for hot water that also serves as a support leg, and the height from the outdoor unit base 2 is the outdoor level. The height of the refrigeration cycle heat exchanger 9 on the machine base 2, By allowing the general air-conditioning outdoor unit comparable height of the water heater outdoor unit form suppressed.
Further, a refrigeration cycle heat exchanger 9 having a plate-like appearance is erected on the peripheral portion on the outdoor unit base 2, and the hot water heat exchanger 10 is placed on the outdoor unit base 2 excluding the erected portion. , And the lid 12 on the hot water heat exchanger housing wall 11 for housing the hot water heat exchanger 10 is used as a compressor base, and the compressor 15 is installed on the lid 12. A hot water supply outdoor unit having the same installation area as a general air conditioning outdoor unit can be formed.
Furthermore, since the heat exchanger 9 for the refrigeration cycle having a plate-like appearance is erected on the peripheral portion on the outdoor unit base 2, the space of the outdoor unit base 2 is very small and the compressor base 2 The installation space for the hot water heat exchanger 10 is almost the same as that of a conventional hot water supply outdoor unit having a two-stage stack structure, and there is no decrease in hot water supply capacity. There is no.

Embodiment 2. FIG.
6 is a perspective view showing the inside of a hot water supply outdoor unit body of the hot water supply outdoor unit according to the second embodiment, and FIG. 7 is a cross-sectional view of the hot water supply outdoor unit body as viewed from the side.
As shown in these figures, the hot water supply outdoor unit of the present embodiment is a stepped hot water heat exchanger having a housing wall with a reduced height at the periphery on the outdoor unit base 2 partially outside. The storage wall 11 is erected so that the hot water heat exchanger 10 can be installed in almost the entire space on the outdoor unit base 2, and the refrigeration cycle heat exchanger 9 is accommodated in a stepped hot water heat exchanger. The storage wall lid 12 that is one step lower in the periphery of the wall 11 is used as a heat exchanger base 12a for the refrigeration cycle, and the hot water heat exchanger 10 has a stepped shape as a heat exchanger for hot water. The other configuration is the same as that of the hot water supply outdoor unit according to the first embodiment.

Since this hot water supply outdoor unit installs the hot water heat exchanger 10 in almost the entire space on the outdoor unit base 2, the installation space for the hot water heat exchanger 10 is the same as that of the conventional two-stage hot water supply outdoor unit. There is no decline in hot water supply capacity.
The refrigeration cycle heat exchanger 9 is erected on a refrigeration cycle heat exchanger base 12a, which is a housing wall lid 12 that is one step lower in the periphery of the stepped hot water heat exchanger housing wall 11. Therefore, the height can be suppressed lower than the conventional simple two-layer structure.
In addition, since the heat exchanger 9 for the refrigeration cycle and the compressor 15 are installed on the heat exchanger 10 for hot water installed on the outdoor unit base 2, the installation area is not enlarged, and is similar to that of a general air conditioning outdoor unit. A hot water supply outdoor unit with an installation area can be formed.
The hot water heat exchanger 10 of the hot water supply outdoor unit has a pipe arrangement structure that matches the container shape formed by the outdoor unit base 2 and the stepped hot water heat exchanger housing wall 11.
Further, the stepped hot water heat exchanger housing wall 11 having a housing wall partially lowered on the outside has a low temperature hot water heat exchanger housing wall so as to surround almost the entire space on the outdoor unit base 2. The hot water heat exchanger accommodating wall 11b, in which the area of the peripheral portion where the refrigeration cycle heat exchanger 9 is erected is reduced, is removed from the hot water heat exchanger accommodating wall 11a. It is formed by standing upright.

  The hot water supply outdoor unit of Embodiment 1 or Embodiment 2 is connected to the indoor unit by a refrigerant pipe, and constitutes a hot water supply air conditioner. The hot water supply air conditioner includes the hot water supply outdoor unit as described above, and is capable of heating and cooling and supplying hot water to a connected hot water storage tank.

  2 outdoor unit base, 9 refrigeration cycle heat exchanger, 10 hot water heat exchanger, 11 hot water heat exchanger housing wall, 12 lid, 15 compressor.

Claims (3)

A housing formed by an outdoor unit base, a front plate, a side plate, and a top plate;
A refrigeration cycle heat exchanger erected on the periphery of the outdoor unit base constituting the bottom surface of the housing;
A hot water heat exchanger housed in a container provided on the outdoor unit base;
A lid covering the top surface of the container;
A separator erected on the lid so as to divide the inside of the housing into a fan chamber and a machine chamber;
A fan housed in the fan chamber and provided on the lid to face the heat exchanger for the refrigeration cycle,
A compressor is installed on the lid in the machine room, and the hot water heat exchanger is extended from a lower part of the fan chamber to a lower part of the compressor,
The container is composed of the outdoor unit base and a hot water heat exchanger housing wall provided on the outdoor unit base, and the hot water heat exchanger housing wall is at both ends or four corners of the hot water heat exchanger. And the height of the portion corresponding to the machine room is higher than the height of the portion corresponding to the fan chamber so that the installation range of the compressor in the lid is lower than the installation range of the fan in the lid. A hot water supply outdoor unit characterized by low   The hot water outdoor unit according to claim 1, wherein the hot water heat exchanger housing wall is used as a support leg of the compressor.   A hot-water supply air conditioner, wherein the hot-water supply outdoor unit according to any one of claims 1 to 2 and the indoor unit are connected by a refrigerant pipe to enable cooling and heating and hot-water supply.

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