JPH04217741A - Air conditioner - Google Patents

Abstract

PURPOSE:To provide an air condition capable of preventing a louver from biting a finger, protecting an opening area variable means and providing a good outer appearance. CONSTITUTION:A damper 9 for varying an opening area within a duct 3 in response to an amount of fed air under an operation of a fan 7 is disposed at an upstream side of a louver 8 at a blowing port of a hot air heating device 1. An amount of air of the fan 7 is controlled in a stepwise manner or a continuous manner in response to a heating operation starting time or a room temperature or the like.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention is applicable to hot air heaters, coolers,
This relates to the air blowing part of an air conditioner such as a dehumidifier.

0002

2. Description of the Related Art The opening area of the air outlet of an air conditioner is generally set depending on the capacity of the blower. However,
When the amount of air blown by the blower is small, the air flow blown out from the outlet becomes slow, and the air flow blown out from the air conditioner does not reach far. Therefore, conventionally, Figure 2
As shown in FIG. 1, a technique has been proposed in which one of the plurality of louvers 102 provided at the air outlet 101 is rotated according to the air volume to change the opening area of the air outlet 101.

0003

[Problems to be Solved by the Invention] However, in the conventional technology, when a child or the like is fiddling with the air outlet 101 and the air volume changes and the louver 102 rotates,
There is a possibility that the louver 102 may pinch fingers. In addition, since the louver 102 is provided at a position that can be touched from the outside,
If an object hits the louver 102 and the actuator that drives the louver 102 breaks, or if the user
There was a possibility that the actuator that drives the louver 102 could be damaged by touching it. Furthermore, the user can see that the louver 102 blocks a portion of the air outlet 101, resulting in an unsightly appearance.

0004

[Object of the Invention] The present invention was made in view of the above-mentioned circumstances, and its purpose is to prevent the louver from pinching fingers, protect the actuator that changes the opening area of the air outlet, and reduce the opening area of the air outlet. To provide an air conditioner that does not become ungainly even if it becomes small.

[0005]

[Means for Solving the Problems] The air conditioner of the present invention employs the following technical means. The air conditioner includes a duct with an outlet that blows air toward a room, and a fan whose air flow rate can be varied in the duct to generate an air flow toward the room, and the outlet of the duct is provided with a fan for adjusting the wind direction. Equipped with a louver. Further, the duct is provided with an opening area variable means in an upstream portion of the louver for changing the opening area within the duct according to the amount of air blown by the fan.

[0006]

[Operation and Effects of the Invention] The air conditioner of the present invention is provided with the opening area variable means in the upstream portion of the louver provided at the air outlet, so that the opening area variable means is protected by the louver and externally It's hard to see. As a result, the following effects are achieved. It is possible to eliminate the possibility that children or the like may get their fingers caught in the air outlet. Furthermore, there is no possibility that the opening area variable means will be broken due to external influences. Furthermore, even if the opening area of the air outlet becomes smaller, it does not become ungainly.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment in which the air conditioner of the present invention is applied to a hot air heating device will be described with reference to the drawings.

[Configuration of Example] FIG. 1 shows a schematic side sectional view of a hot air heating device. The hot air heating device 1 of this embodiment sucks indoor air, heats it, and returns it back into the room, and includes a duct 3 in a housing 2. The duct 3 includes an inlet 4 at the upper rear surface of the housing 2 for taking in indoor air, and an outlet 5 at the lower front surface of the housing 2 for blowing air toward the interior. A heating means 6 for heating the air passing through the duct 3 is provided inside the housing 2 . The heating means 6 of this embodiment burns fuel such as gas or kerosene, and mixes the combustion gas with the air passing through the duct 3. A fan 7 is disposed inside the duct 3 on the side of the air outlet 5 of the heating means 6. The rotation speed of the fan 7 is controlled by a control device (not shown), and the amount of air blown out from the air outlet 5 changes. The control device controls the air volume of the fan 7 in a stepwise or continuous manner depending on the heating start time, room temperature, and the like.

[0009] The air outlet 5 of the duct 3 of this embodiment extends in the transverse direction. The air outlet 5 is provided with three louvers 8 extending laterally. The louvers 8 of this embodiment are of a fixed type, and the louvers 8 are provided at equal intervals and in parallel. The air outlet 5 is connected to the air outlet 5 by three louvers 8.
It is divided into two openings, but the top opening is a dummy and hardly any warm air is blown out. That is, warm air is blown out from the lower three of the four openings partitioned by the three louvers 8.

A plate-shaped damper 9 is provided at the upstream portion of the louver 8 as an opening area varying means for varying the opening area within the duct 3. This damper 9 is driven and operated by an actuator (not shown), and the area of the air flow path guided to the lower three of the four openings partitioned by the three louvers 8 is changed depending on the rotational position of the damper 9. It is something that makes you Note that the damper 9 is controlled according to the rotational speed of the fan 7 so that the flow velocity of the warm air blown out from the blower outlet 5 is approximately constant even if the air volume changes.

[Operation of the Embodiment] Next, the operation of the above embodiment will be briefly explained. When the room temperature is low, large combustion occurs and the fan 7 rotates at high speed so as to obtain a large heating effect. When the air volume is large in this way, the damper 9 is fully opened without blocking the opening area in the duct 3, as shown by the solid line A in the figure. When the room temperature rises and the medium heating capacity is selected, the fan 7 rotates at medium speed. When the air volume is medium like this, damper 9
As shown by the broken line B in the figure, the opening area in the duct 3 is 1
/3 to 1/2 to make the flow velocity blown out from the air outlet 5 the same as when the air volume is large. and,
When the room temperature further rises and a small heating capacity is selected, the damper 9 reduces the opening area in the duct 3 by about 1/2 to 2/3, as shown by the broken line C in the figure, and the air outlet Make the velocity of the flow blown out from 5 the same as when the air volume is large.

[Effects of the Embodiment] In the air conditioner of this embodiment, the opening area variable means is provided in the upstream portion of the louvers 8, so that the opening area variable means is protected by the plurality of louvers 8. As a result, it is possible to eliminate the possibility that an infant or the like may get their fingers caught by the damper 9 of the aperture area variable means, and it is also possible to prevent the aperture area variable means from being damaged by hitting objects or being touched by the user. . Further, since the opening area variable means is hidden by the plurality of louvers 8, the opening area variable means does not become unsightly even if the opening area is reduced, as in the conventional case.

[0013]

[Modification] In the above embodiment, a combustion device is used as the heating means, but other heating means such as a hot water heat exchanger or an electric heater may be used.

Furthermore, although this embodiment shows an example in which the present invention is applied to a hot air heating device, the present invention may also be applied to air conditioners such as coolers and air purifiers.

[Brief explanation of the drawing]

FIG. 1 is a schematic side sectional view of a hot air heating device to which the present invention is applied.

FIG. 2 is a sectional view of an air outlet of a conventional air conditioner.

[Explanation of symbols]

1 Hot air heating device (air conditioner) 3 Duct 5 Air outlet 7 Fan 8 Louva 9 Damper (opening area variable means)

Claims (1)

[Claims] [Claim 1] A duct equipped with an air outlet that blows air toward a room; and a fan whose air flow rate can be varied to generate an air flow toward the room in this duct; In the air conditioner provided with a louver, the duct is provided with an opening area variable means in an upstream portion of the louver that changes the opening area in the duct according to the amount of air blown by the fan. air conditioning equipment.