JPS6218898Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an air source heat pump unit that makes the amount of outside air taken into a room constant and eliminates the need for a drain pipe.

In air source heat pumps, only the drain pipe remains as part of the piping work, so if this drain pipe can be eliminated, the problems of drilling holes in the wall and connecting it to the beam will be solved, which will greatly help reduce construction costs and shorten the construction period. In addition, it would be very desirable if the heat pump could be configured with a supply/exhaust function (intake and exhaust of outside air into the room), as it would allow ventilation at the same time, but depending on the condition of the outside air, more outside air than necessary may get mixed in. Controlling it is not easy.

This invention was made with the aim of providing an air source heat pump unit that eliminates the need for drain pipe construction and can ensure air supply and exhaust. In an air heat source heat pump unit in which indoor equipment is supported on the inside of the partition plate 1 and outdoor equipment is supported on the outside of the partition plate 1, the partition plate 1 closes when the static pressure difference between the inside and outside of the partition plate 1 exceeds a predetermined value. An opening 2 with a damper is provided, and a drain pool 3 is provided outside the lower part of the wall opening, and the drain generated within the unit is made to flow down into this drain pool 3.

In the embodiment shown in Fig. 1, a partition plate 1 is installed in the wall opening of the building
The partition plate 1 forms part of the wall of the building. Support plates 5 and 6 extending horizontally are attached to both sides of the partition plate 1 at approximately the center of the top and bottom, and the loads of each device are applied to the partition plate 1 in a well-balanced manner using the support plates 5 and 6. Each device is supported. In the figure, 7 is an indoor heat exchanger, 8 is an indoor fan, 9 is an air supply port, 10 is a filter return air port, 11 is an indoor drain pan, 12 is an outdoor heat exchanger, and 13 is an outdoor fan. , 14 is an outside air intake port,
15 is an exhaust port, and 16 is an outdoor drain pan.
As shown in the figure, the unit configured by supporting each device on the partition plate 1 is housed inside the counter table 17 under the window on the indoor side, and inside the outer casing 18 on the outdoor side. ing. This outer casing 18 extends below the lower end of the unit main body with a gap 20 between it and the outer wall 19, and this gap 20 serves as an exhaust passage. A drain pool 3 is formed below this exhaust passage and outward from this outer wall 19, and the drain generated within the unit is released into this exhaust passage 20 along with the exhaust air, accumulates in the drain pool 3, and is evaporated and dissipated into the outside air. Ru.

In this embodiment, the drain is dissipated into the exhaust passage 20 by installing the drain pan 16 of the outdoor heat exchanger 12 near the exhaust passage 20, and dissipating the drain from the drain pan 16 along the outer wall surface facing the exhaust passage 20 ( (A running water groove or a gutter may be provided) The water flows into the drain pool 3. In the unit, a drain passage 22 is provided in the outdoor side drain pan 16 to guide the drain from the indoor side drain pan 5 installed at a higher location. This drain passage 22 is a drain hose that connects the drain pan 5 and the drain pan 16, and is arranged to penetrate the partition plate 2.

FIGS. 2 and 3 show comparative examples of this drain passage 22. When the drain pan 11 and the outdoor side of the partition plate 1 are communicated as shown in FIG. If a water blow-up phenomenon occurs and a water seal trap 23 is created as shown in Fig. 3 to avoid this, when this water seal breaks, it is necessary to introduce water to create this water seal again, which is time consuming. This is not preferable because this problem arises.

FIG. 4 shows an embodiment of a drain passage that solves these problems. A bag body 26 made of rubber, such as silicone rubber, with a cut 25 at the tip is inserted into the drain passage 22 with the cut 25 facing down. Here is an example.
More specifically, this rubber bag body 26 is attached to the discharge pipe 27 of the drain pan 11, and this rubber bag body 2
A drain pipe 22 is attached to the outside of 6. As a result, the drain in the drain pan 11 is first drained into the bag body 26.
However, the cut 25 is closed by the elasticity of the rubber until the accumulated amount reaches a certain amount, and when the weight of drain exceeds this cut elasticity, the cut 25 is closed. opens and drains into pipe 2.
Fall within 2. Therefore, whether there is a drain or not, this cut 25 is closed, so the second
~3 The problems shown in Figure 3 can be effectively solved, and the airtightness can be maintained to prevent backflow of bad odors.
It is very suitable as a drain passage for the unit of the present invention. Note that FIG. 5 shows the state of the cuts on the bottom surface of the rubber bag body 26, and this figure shows the cross-shaped cuts 2.
5 is shown, but this may be a single cut.

In this way, the unit of the present invention guides even the drain generated in the indoor heat exchanger 7 into the outside air atmosphere outside the partition plate 1 while preventing outside air from entering, and drain piping is not provided from this unit. At least in the drain pool 3, the water can be dissipated into the outside air.

Furthermore, in the unit of the present invention, the partition plate 1 is provided with a damper-equipped opening 2 that closes when the static pressure difference between the inside and outside exceeds a predetermined value. In the embodiment shown in FIG. 1, two openings 2 are provided on the upper and lower sides of the support plates 5 and 6, and a chuck damper 3 having a size that can close the openings is placed at a position facing the outdoor side of the openings 2.
0 is installed. More specifically, as shown in FIG. 7, a balance weight 31 is attached to this chuck damper 30, and the weight 31 and the damper's own weight exert a force in the direction of closing, and resist this force. This is pushed open by a spring 32. The operation of pushing the spring 32 is performed externally manually or electrically.
When the damper 30 is opened by external operation in this manner, outside air flows into the room through the opening 2, allowing fresh air to be taken in. When this unit is open and a strong wind blows against it, the difference in static pressure between the indoor and outdoor areas increases, pushing the spring and automatically closing the unit.

FIG. 7 shows an example of a unit of the present invention in which the partition plate 1 is connected to a building opening via a sleeve 35. This sleeve 35 is installed inside the building opening, and outdoor equipment is installed inside this sleeve 35. They are arranged to form a unit similar to that shown in FIG. In this example as well, a drain passage 22 and a damper-equipped opening 2 are provided as in FIG. 1, and the drain is dissipated in a drain pool 3 outside the building.

As described above, the inventive unit eliminates the need for drain piping, which was a problem with conventional air source heat pump units, and also achieves a constant air intake amount and ease of installation into the side wall opening of a building. This is an improvement.

[Brief explanation of the drawing]

Fig. 1 is a schematic sectional view showing an embodiment of the unit of the present invention, Figs. 2 and 3 are schematic sectional views showing a comparative example of a drain passage, and Fig. 4 is a sectional view showing an example of the drain passage of the invention. , Fig. 5 is a bottom view of the rubber shown in Fig. 4, Fig. 6 is an enlarged sectional view of the opening with a damper, and Fig. 7 is a bottom view of the rubber part shown in Fig. 4.
The figure is a schematic sectional view showing another embodiment of the unit of the present invention. 1... Partition plate, 2... Opening with damper, 3... Drain pool, 5, 6... Support plate, 7... Indoor heat exchanger, 8... Indoor fan, 11, 16... Drain pan, 12...Outdoor heat exchanger, 13...Outdoor fan, 20...Exhaust passage, 22...Drain passage, 25...Slit, 26...Rubber cylinder.

Claims (1)

[Scope of utility model registration request] In an air heat source heat pump unit, indoor equipment is supported on the inside of a partition plate 1 that closes a wall opening of a building, and outdoor equipment is supported on the outside of the partition plate 1. A damper-equipped opening 2 is provided which closes when the temperature exceeds a predetermined value, and a drain pool 3 is provided outside the lower part of the wall opening, and a drain path is provided to allow the drain generated within the unit to flow down into the drain pool 3. Air source heat pump unit installed.