JPH0443253A - Air conditioner - Google Patents

Abstract

PURPOSE:To improve heating of feet by a method wherein when a discharge temperature during heating operation is low, a discharge air velocity is decreased and an arrival distance is discreased, and when a discharge temperature is high, a discharge air velocity is increased and an arrival distance is increased. CONSTITUTION:When the temperature of discharge air through an air discharge port 5 is low, a coupling member 10 formed of a shape memory material is elongated, resulting in the increase of the air passage sectional area of an air discharge port 5 by an air lock plate 9 coupled to the memory member 10. When the air passage sectional area of the air discharge port 5 is increased, the discharge air velocity of the air discharge port 5 is reduced, and an arrival distance of air discharged through the air discharge port 5 is decreased. Thereby, low temperature discharge air does not arrive to feet, no cold feeling of feet is produced. Meanwhile, when the temperature of air discharged through the air discharge port 5 is increased, the coupling member 10 formed of a shape memory material shrinks, resulting in reduction of the air passage sectional area of the discharge port 6 by means of the air lock plate 9 coupled to the coupling material 10. When the air passage section area of the air discharge port 5 is decreased, the discharge air velocity of the air discharge 5 is increased and an arrival distance of air discharged through the air discharge port 5 is increased. Thereby, high temperature discharge air arrives at feet and heating of feet is improved.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a ceiling-embedded air conditioner, and more particularly to a ceiling-embedded air conditioner that automatically increases or decreases the air passage cross section of the air outlet. It is.

BACKGROUND OF THE INVENTION In recent years, ceiling-mounted air conditioners that automatically increase or decrease the cross section of the air passage of the air outlet have become available.

Hereinafter, an example of a conventional ceiling-embedded air conditioner that automatically increases or decreases the air passage cross section of an air outlet will be described with reference to the drawings.

FIG. 3 is a partially cutaway perspective view of a conventional ceiling-embedded air conditioner, and FIG. 4 is a cross-sectional perspective view showing an air outlet of the ceiling-embedded air conditioner of FIG.

In the figure, 1 is a main body of the ceiling-mounted air conditioner, and 2 is an air suction port for sucking indoor air into the main body 1 of the ceiling-mounted air conditioner. 3 is a blower for blowing air.

4 is a heat exchanger that removes heat from indoor air to cool the room, or conversely adds heat to heat the room. 6 is an air outlet for blowing the air conditioned by the heat exchanger 4 into the room again. 6 is a wind direction changing plate for changing the wind direction horizontally or downwardly. Reference numeral 7 denotes a wind motion plate, one of which can freely swing, and is attached to both ends of the air passage of the air outlet 6 in the longitudinal direction. Reference numeral 8 denotes a connecting rod via a spring that connects the wind movement plates 7 attached to both end faces.

The operation of the ceiling-embedded air conditioner configured as described above will be described below with reference to FIGS. 3 and 4.

First, indoor air is sucked into the ceiling-mounted air conditioner main body 1 through the air intake port 2, and is blown to the heat exchanger 4 by the blower 3. The air that has passed through the heat exchanger 4 and has been heat exchanged is heated by the wind direction changing plate 6 provided in the air path of the air outlet 6.
During cooling operation, the cool air is blown diagonally horizontally, and during heating operation, the heating air is blown downward. At this time, the wind movement plates 7 attached to both end faces of the air passage of the air outlet 5 receive the wind pressure of the air passage of the air outlet 6, and the air movement plates 7 that are opposite to each other are connected via a spring. Since the rods 8 are pulled together, the connecting rod 8 is extended.

As a result, the longitudinal direction of the air passage of the air outlet 6 is extended, and the cross-sectional area of the air passage of the air outlet 5 is increased. By the way, when adjusting the capacity at low load, the number of rotations of the blower 30 is lowered to reduce the air volume, so the wind pressure in the air passage of the air outlet 5 is also reduced. Therefore, the force pressing the connecting rod 8 that connects the airflow plates 7 is also reduced, and the connecting rod 8 is contracted by the spring force within the connecting rod 8, so that the cross-sectional area of the air passage of the air outlet 6 is reduced. Therefore, the wind speed at the air outlet 5 is the same as before the capacity adjustment.

Problems to be Solved by the Invention However, in the above configuration, the cross-sectional area of the air passage of the air outlet 5 is increased or decreased only by the wind pressure of the air passage of the air outlet 5, and the blowing air is kept at a substantially constant speed. Since the temperature is set to reach the feet, it is not possible to make adjustments that follow changes in the air outlet temperature during heating operation. Therefore, the blowing air speed does not change even at the start of heating operation when the blowing temperature is low, when the thermostat is turned off, and before the defrost, so the blowing air temperature reaching the feet is low and there is a feeling of cold air.

In view of the above-mentioned problems, the present invention reduces the blowing air speed and shortens the reach distance when the air blowing temperature is low during heating operation to prevent the feeling of cold air at the feet, and increases the blowing air speed when the blowing temperature is high. To provide a ceiling-embedded air conditioner that has a longer reach and improves heating at your feet.

The ceiling-embedded air conditioner of the present invention which achieves the above objects has the following features:
a ceiling-embedded air conditioner main body having an air inlet and an air outlet; a wind stop plate provided in the air passage of the air outlet so as to be able to increase or decrease the cross-sectional area of the air passage of the air outlet; an extendable connecting member that operates a windstop plate, and when the connecting member is contracted, the windstop plate reduces the air passage cross-sectional area of the air outlet, and when the connecting member is extended, the windstop plate is One end of the connecting member is connected to the wind stop plate so as to increase the air passage cross-sectional area of the air outlet, and the other end of the connecting member is fixed to the air conditioner main body, and at least the air of the connecting member is connected to the wind stop plate. The portion of the air outlet exposed to the air path is made of a shape memory material so that it contracts when the temperature of the air blown from the air outlet is high and expands when the temperature of the air blown from the air outlet is low.

Function: Since the ceiling-embedded air conditioner of the present invention has the above configuration, when the temperature of the air blown from the air outlet is low, the portion of the air outlet exposed to the air path is configured with a shape memory material. The connecting member expands, and the windshield plate connected to the connecting member increases the cross-sectional area of the air passage of the air outlet. When the cross-sectional area of the air passage of the air outlet increases, the speed of the air blowing from the air outlet becomes weaker, and the distance that the air blown out from the air outlet reaches becomes shorter.

As a result, low-temperature blown air no longer reaches the feet, eliminating the feeling of cold air at the feet. On the other hand, when the temperature of the air blown from the air outlet increases, the connecting member made of shape memory material that forms the part exposed to the air path of the air outlet contracts, and as a result, the windstop plate connected to the connecting member Reduce the cross-sectional area of the air path. When the air passage cross-sectional area of the air outlet decreases, the air outlet
] The blowing wind speed becomes stronger, and the distance that the air blown from the air outlet reaches becomes longer. Therefore, the high-temperature blown air reaches the feet, heating the feet.

EXAMPLE A ceiling-embedded air conditioner according to an embodiment of the present invention will be described below with reference to the drawings. Parts having the same configuration as the conventional one are given the same reference numerals as the conventional one, and a detailed explanation thereof will be given. is omitted.

FIG. 1 is a partially cutaway perspective view of a ceiling-mounted air conditioner according to an embodiment of the present invention, and FIG. 2 is a cross-sectional perspective view showing an air outlet of the ceiling-mounted air conditioner of FIG. 1. It is. In the figure,
Reference numeral 9 denotes a wind stop plate installed perpendicularly to the air flow in the air passage of the air outlet 5, and is slidably inserted into a groove 6a formed in the wall on the short side of the air passage of the air outlet 6. As a result, the cross-sectional area of the air passage of the air outlet 5 is increased or decreased. Reference numeral 10 denotes an extendable member having one end connected to the tip of the windshield plate 9 on the side exposed to the air passage of the air outlet 5, and the other end fixed to the wall facing the groove 5a of the air passage of the air outlet 5. Wind stop plate 9 is a rod-shaped connecting member.
Slide. The connecting member 1o is made of a shape memory material, and the portion exposed to the air path of the air outlet 6 is spirally wound, so that when the temperature of the air blown from the air outlet 6 is high, it contracts and the air from the air outlet 5 contracts. It expands when the blown air temperature is low.

The operation of the ceiling-embedded air conditioner configured as described above will be explained below with reference to FIGS. 1 and 2.

First, indoor air is sucked into the ceiling-mounted air conditioner body 1 through the air suction port 2, and is blown to the heat exchanger 4 by the blower 3. The air that has passed through the heat exchanger 4 and has been heat exchanged is heated by the wind direction changing plate 6 provided in the air path of the air outlet 6.
During cooling operation, the cool air is blown diagonally horizontally, and during heating operation, the warm air is blown downward. At this time, the air outlet 58 is contracted and the cross-sectional area of the air passage of the air outlet 5 is reduced, so that the velocity of the blown air increases and the distance that the blown air reaches becomes longer.

Therefore, warm blown air is blown to the feet.

Also, when adjusting the capacity at low load, the blower 30 rotation speed is lowered to reduce the air volume, so the blowing air speed becomes weaker and the blowing temperature becomes higher.

Therefore, the connecting member 8 shrinks, the cross-sectional area of the air passage of the air outlet 5 decreases, the velocity of the blown air increases, and the distance the blown air reaches becomes longer. Therefore, warm blown air is blown to the feet.

By the way, when the thermostat is off and before defrosting, the air outlet temperature gradually decreases, so the connecting member 8 gradually expands and the cross-sectional area of the air passage of the air outlet 6 increases, the air outlet speed decreases, and the distance the blown air reaches becomes shorter. Become. Therefore, low-temperature blown air is not blown to the feet.

As described above, the ceiling-embedded air conditioner of this embodiment has a ceiling-embedded air conditioner main body 1 having an air inlet 2 and an air outlet 5, and a cross-sectional area of the air passage of the air outlet. This is a ceiling-embedded air conditioner comprising a windshield plate 9 installed in the air passage of an air outlet 6 that can be increased or decreased, and an extendable connecting member 10 that operates the windshield plate 9, the connecting member The connecting member 10 is configured such that when the connecting member 10 is contracted, the wind shield plate 9 reduces the cross-sectional area of the air passage of the air outlet 6, and when the connecting member 1° is extended, the wind shield plate 9 increases the cross-sectional area of the air passage of the air outlet 5. One end is connected to the windshield plate 9, and the other end of the connecting member 1o is fixed to the wall of the air passage of the air outlet 5, and the connecting member 1o is made of a shape memory material so that the temperature of the air blown from the air outlet 6 is high. Since it is configured to contract when the temperature of the air blown from the air outlet 6 is low, it expands when the temperature of the air blown from the air outlet 6 is low.
The connecting member 10 made of a shape memory material expands, whereby the windshield plate 9 connected to the connecting member 1o increases the air passage cross-sectional area of the air outlet 5. When the cross-sectional area of the air passage of the air outlet 5 increases, the speed of the air blowing from the air outlet 6 becomes weaker, and the distance that the air blown out from the air outlet 5 reaches becomes shorter. As a result, low-temperature blown air no longer reaches the feet, eliminating the feeling of cold air at the feet. On the other hand, when the temperature of the air blown from the air outlet 6 increases, the connecting member 10 made of a shape memory material contracts, and as a result, the windshield plate 9 connected to the connecting member 1o reduces the air passage cross-sectional area of the air outlet 6. . When the cross-sectional area of the air passage of the air outlet 6 decreases, the air velocity of the air outlet 5 increases, and the distance that the air blown out from the air outlet 5 reaches becomes longer. This allows high-temperature blown air to reach the feet, improving the heating of the feet.

Effects of the Invention As described above, the ceiling-embedded air conditioner of the present invention includes a ceiling-embedded air conditioner main body having an air inlet and an air outlet, and an air conditioner that increases or decreases the cross-sectional area of the air passage of the air outlet. A windstop plate is provided in the air passage of the air outlet, and an extendable connecting member that operates the airstop plate is provided, and when the connecting member is contracted, the airstop plate closes the air outlet. one end of the connecting member is connected to the windstop plate so that when the connecting member is extended, the windstop plate increases the airway cross-sectional area of the air outlet; The other end is fixed to the air conditioner main body, and at least a portion of the connecting member exposed to the air path of the air outlet is made of a shape memory material so that it contracts when the temperature of the air blown from the air outlet is high. When the temperature of the air blown from the air outlet is low, the connection member is configured to expand when the temperature of the air blown from the air outlet is low. expands, so that the windshield plate connected to the connecting member increases the air passage cross-sectional area of the air outlet. When the cross-sectional area of the air passage of the air outlet increases, the speed of the air blowing from the air outlet becomes weaker, and the distance that the air blown out from the air outlet reaches becomes shorter.

Therefore, low-temperature blown air does not reach the feet, and the feeling of cold air at the feet disappears. On the other hand, when the temperature of the air blown from the air outlet increases, the connecting member made of shape memory material that forms the part exposed to the air path of the air outlet contracts, and as a result, the windstop plate connected to the connecting member Reduce the cross-sectional area of the air path. When the cross-sectional area of the air passage of the air outlet is reduced, the distance of the air blown out from the air outlet becomes longer than that of the nine air outlets, which have a higher velocity. This allows high-temperature blown air to reach the feet, improving the heating of the feet.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway perspective view of a ceiling-mounted air conditioner according to an embodiment of the present invention, and FIG. 2 is a cross-sectional perspective view showing an air outlet of the ceiling-mounted air conditioner of FIG. 1. 3 is a partially cutaway perspective view of a conventional ceiling-embedded air conditioner, and FIG. 4 is a cross-sectional perspective view showing an air outlet of the ceiling-embedded air conditioner of FIG. 1...Ceiling-mounted air conditioner body, 2...
...Air inlet, 6...Air outlet, 9...
...Wind stop plate, 10...Connecting member. Agent's name Patent attorney Shige Takashi Awano and 1 base cylinder Tenshodan type γ7U Bowar war main body Friendship fatigue bottom low detachment lack a mouth blunder Hayabusa tile iL story teacher It! 1 Figure 10

Claims (1)

[Claims] a ceiling-embedded air conditioner main body having an air inlet and an air outlet; a wind stop plate provided in the air passage of the air outlet so as to be able to increase or decrease the cross-sectional area of the air passage of the air outlet; A ceiling-embedded air conditioner is provided with an extendable connection member that operates a windstop plate, wherein when the connection member is contracted, the windstop plate reduces the air passage cross-sectional area of the air outlet. One end of the connecting member is connected to the windstop plate so that when the connecting member is extended, the windstop plate increases the cross-sectional area of the air passage of the air outlet, and the other end of the connecting member is connected to the air conditioner main body. at least a portion of the connecting member exposed to the air path of the air outlet is made of a shape memory material so that it contracts when the temperature of the air blown from the air outlet is high, and when the temperature of the air blown from the air outlet is low. A ceiling-mounted air conditioner characterized by being configured to extend.