JPH0338488B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a ceiling-embedded air conditioner having heating and cooling functions and ventilation functions.

BACKGROUND OF THE INVENTION The present inventors have considered a ceiling-embedded air conditioner as shown in FIG. This air conditioner has main body 1
An outdoor suction port 2 and an outdoor air outlet 3 are provided on one side, and an indoor air intake port 4 and an indoor air outlet 5 are provided on the other side. An outdoor blower 6 is provided in the outdoor unit section 7 in the main body 1, and an indoor blower 8 is provided in the indoor unit section 9. Exchanger 10 and indoor heat exchanger 1 on the user side
1 are arranged substantially diagonally in parallel within the main body 1. On the windward side of the indoor heat exchanger 11,
An air filter 12 is provided, and a one-blade damper 13 is provided between the outdoor heat exchanger 10 and the indoor heat exchanger 11.

This damper 13 is configured to switch ventilation between heating and cooling and cooling with outside air by means of an arm 15 connected to a damper motor 14. That is, the damper 13 is located at the solid line position during cooling and heating with the fulcrum 16 located approximately at the center as the pivot point, and the air flow is as shown by arrows A and A' as shown by the arrows A and A'. Outdoor heat exchanger 10
The indoor air passing through the room is blown out from the outdoor air outlet 3, while the indoor air sucked in from the indoor air inlet 4 is indicated by arrow B.
As shown in B', a ventilation path is formed in which the air passes through the air filter 12 and the indoor heat exchanger 11 and is blown into the room from the indoor air outlet 5.

Next, the damper motor 14 is driven, and the damper 13 is switched to the dotted line position shown in the figure with the fulcrum 16 as the pivot point, thereby performing outside air cooling. That is, indoor air flows in from the indoor suction port 4 by the outdoor blower 6, passes through the outdoor heat exchanger 10 as shown by arrow C, and is blown out from the outdoor outlet 3.
As a result, a ventilation path is formed in which air flows in from the outdoor suction port 2, passes through the air filter 12 and the indoor heat exchanger 11 as shown by arrow D, and blows out indoors from the indoor air outlet 5.

Problems to be Solved by the Invention In the ceiling-embedded air conditioner configured as described above, the one-wing damper 13 is positioned at the solid line position or the dotted line position shown in the figure with the fulcrum 16 as the pivot point during air conditioning and air cooling. can be switched to When the damper 13 is switched in this way, since one blade of the damper 13 has a length comparable to the length of the outdoor heat exchanger 10, the contact positions P, P' and Q, Q at both ends of the damper 13 are ', the moment from the fulcrum 16 is weak and does not come into sufficient contact with the outdoor heat exchanger 10, air filter 12, and partition plate 17. In other words, a gap is created, and air leaks from the gap during air conditioning and outdoor air cooling. occurs,
This had the problem of reduced heating and cooling capacity and outdoor air cooling capacity.

The present invention solves these problems,
The purpose is to ensure the movement of the damper and prevent wind leakage.

Means for Solving the Problems In order to solve the above problems, the present invention provides a main body having an outdoor exhaust port, an outdoor suction port, an indoor air outlet, and an indoor suction port, and the outdoor exhaust port and the outdoor suction port. an indoor ventilation path that communicates with the indoor air outlet and the indoor suction port; an exhaust air path that communicates the outdoor air outlet with the indoor suction port; An intake ventilation passage communicating with the outlet, an outdoor heat exchanger provided in the outdoor ventilation passage, an indoor heat exchanger provided in the indoor ventilation passage, and an air intake ventilation passage provided between the indoor heat exchanger and the outdoor heat exchanger. A damper is provided at both ends of the partition plate to select between an indoor ventilation path, an outdoor ventilation path, an exhaust ventilation path, and an intake ventilation path.

Effect: By providing dampers at both ends of the partition plate in this way, the distance of each damper's action becomes shorter, and less force is required for the damper's action.
This means that the operation can be performed reliably and closely.

Embodiment Hereinafter, one embodiment of the present invention will be described based on FIG. Reference numeral 20 denotes a main body of a ceiling-embedded heat pump type air conditioner, an outdoor suction port 21 and an outdoor air outlet 22 are provided on one side of the main body 20, and an outdoor blower 23 is provided opposite to the outdoor air outlet 22. ing. The other side of the main body 20 is provided with an indoor air inlet 24 that serves as an indoor air inlet, and an indoor air outlet 25 that communicates with the indoor side.
An indoor blower is installed facing each other. Main body 20
The outdoor unit section 28 in the interior is provided with an outdoor heat exchanger 27, and the indoor unit section 29 is provided with an indoor heat exchanger 30. are arranged substantially diagonally in parallel. An air filter 31 is provided along the windward side of the indoor heat exchanger 30, and a partition plate 32 is fixed between the outdoor heat exchanger 27 and the air filter 31. This partition plate 32 is formed to have a dimension approximately equal to the longitudinal length of the outdoor heat exchanger 27 and the longitudinal length of the air filter 31, and has one blade connected to damper motors 33 and 34 at both ends thereof. dampers 35 and 36 are provided. One damper 35 is then switched to a contact position R where it contacts the end of the outdoor heat exchanger 27 and a contact position R' where it contacts the end of the air filter 31. Further, the other damper 36 is switched to a contact position S where it contacts the end of the third partition plate 37 and a contact position S' where it contacts the end of the outdoor heat exchanger 27. That is, it is at the position indicated by the solid line during cooling and heating, and is switched to the position indicated by the dotted line when cooling with outside air.

In the figure, 38 is a compressor installed in the indoor unit part 29, 39 is an electrical equipment part, 40 is a total heat exchanger, and the first partition plate 41 and the second partition plate 42 form a flow path A.
A total heat exchange damper motor 43 and its two wing dampers 44 and 45 are provided across the second partition plate 42 and the third partition plate 37 of the outdoor suction port 21.

In the above configuration, the damper 35 has one blade, and the damper 35 has one wing,
6 is rotated by damper motors 33 and 34 to switch the ventilation path. That is, during cooling and heating, each of the dampers 35 and 36 is at the solid line position, and one damper 35 is pushed to the contact position R because its distance is short at the end of the outdoor heat exchanger 27. They are in contact due to the pressing force caused by a strong moment. The other damper 36 is pushed to the contact position at the end of the third partition plate 37 due to its short distance, and is in contact with the pressing force due to a strong moment.

At this time, in the ventilation passage during heating and cooling, outdoor air flows in from the outdoor suction port 21, and the flow passage A,
As shown in A', it becomes an outdoor ventilation path that blows out of the outdoor air from the outdoor air outlet 22 via the outdoor heat exchanger 27 and the outdoor blower 23. On the other hand, indoor air is supplied to the indoor air intake port 24.
As shown in flow paths B and B', air filter 31, indoor heat exchanger 30, and indoor blower 2
6, it becomes an indoor ventilation path that blows out into the room from the indoor air outlet 25. In this way, during heating and cooling,
Each damper 35, 36 is at the solid line position.

Next, when cooling with outside air, each damper 3
5 and 36 are simultaneously switched to the dotted line position by the damper motors 33 and 34, and one damper 35 is pushed to the contact position R' at the end of the air filter 31 and comes into contact with the pressing force due to a strong moment. The other damper 36 is pushed to the contact position S' at the end of the outdoor heat exchanger and comes into contact with the pressing force due to a strong moment.

At this time, outdoor air flows into the air intake passage during outdoor air cooling through the outdoor suction port 21, passes through the air filter 31 and the indoor heat exchanger 30 by the indoor blower 26, as shown in the passage D, and From the indoor air outlet 25, outside air is blown into the room. on the other hand,
Indoor air flows in from the indoor suction port 24, passes through the outdoor heat exchanger 27 by the outdoor blower 23 as shown in the flow path C, and is blown out from the outdoor air outlet 22 to the outside, as shown by the arrow C. It forms a channel and cools the room with outside air while exhausting indoor air.

Effects of the Invention As is clear from the above, the air conditioner of the present invention provides a partition plate between the indoor heat exchanger and the outdoor heat exchanger, and selects the flow path by dampers provided at both ends of the partition plate. As a result, the damper can be made smaller and the damper operates more reliably, which improves airtightness and eliminates air leakage, and there is no reduction in air conditioning or outdoor air cooling capacity, making it possible to create high-quality air conditioners. It has the following effects.

[Brief explanation of drawings]

FIG. 1 is a top sectional view of a ceiling-mounted air conditioner according to an embodiment of the present invention, and FIG. 2 is a top sectional view of a conventional ceiling-mounted air conditioner. 20...Main body, 27...Outdoor heat exchanger, 30...
...Indoor heat exchanger, 31...Air filter, 3
2... Partition plate, 33, 34... Damper motor, 35, 36... Damper, 37... Third partition plate, A, A', B, B', C, D... Channel.

Claims (1)

[Claims] 1. A main body having an outdoor exhaust port, an outdoor suction port, an indoor air outlet, and an indoor suction port, an outdoor ventilation path that communicates the outdoor exhaust port and the outdoor suction port, and the indoor air outlet and the indoor suction port. an indoor ventilation duct that communicates with the outdoor ventilation duct; an exhaust ventilation duct that communicates the outdoor exhaust port with the indoor suction port; an intake ventilation duct that communicates the outdoor suction port with the indoor air outlet; and an outdoor heat duct that communicates with the outdoor ventilation duct. an exchanger, an indoor heat exchanger provided in the indoor ventilation path,
A partition plate is provided between the indoor heat exchanger and the outdoor heat exchanger, and at both ends of the partition plate, an indoor ventilation path, an outdoor ventilation path, an exhaust ventilation path, and an intake ventilation path can be switched and selected. A ceiling-mounted air conditioner equipped with a damper.