JP3014630U - Air conditioner with dew condensation prevention structure - Google Patents

Abstract

(57) [Summary] [Object] To realize an air conditioner in which heating means is provided at an air outlet, which is capable of safely and reliably preventing dew condensation regardless of the shape of the air outlet. [Structure] A blower frame 4 for sending adjusted air into a room from a duct 5, a blowout port 1 formed in an indoor opening of the blower frame 4 for blowing adjusted air into the room, and a face frame 2 formed around the blowout port. The sheet-shaped heating element 3 attached near the face frame 2, the temperature detector 7 attached near the face frame 2 for detecting the temperature of the face frame, and the vicinity of the face frame is a chamber according to the temperature information from the temperature detector. The controller 6 controls the temperature of the sheet-shaped heating element so as not to approach the dew point temperature of the inside air. [Effect] The face frame does not drop to the dew point temperature due to the heating of the sheet-shaped heating element even if the blower frame continuously sends cold air for a long time. Further, since the sheet-shaped heating element is thin and foldable, it can be easily attached regardless of the shape of the outlet. Therefore, it is possible to realize an air conditioner with a simple structure and a high dew condensation prevention effect.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an air conditioner having a dew condensation preventing structure in which a sheet-shaped heating means is provided at an outlet of the air conditioner.

[0002]

[Prior art]

 The air conditioner uses outlets for blowing out regulated air on the ceiling or wall of the building. However, due to the temperature difference between the room temperature and the temperature of the regulated air, this outlet is likely to condense and form water droplets. These water droplets create stains on the wall and make dust stick. In order to prevent dew condensation, conventionally, heating wires were attached around the outlet, and when the outlet reached the dew point, the heating wire heated to raise the temperature around the outlet to prevent dew condensation. Such a structure is disclosed in JP-A-63-25449.

[0003]

[Problems to be solved by the device]

 However, if you try to warm the outlet with a heating wire, it will take time to raise the temperature, and the amount of electricity used will increase. In addition, the outlet with the heating wire attached has a large structure because the heating wire itself has a large thickness, which makes it difficult to design. Moreover, if water droplets of dew condensation occur near the outlet, there is a danger of electrical leakage in the heating wire.

Therefore, an object of the present invention is to always prevent the dew condensation regardless of the size and design of the outlet, in order to solve the conventional problems as described above, in order to always keep the temperature of the outlet to a temperature at which dew does not condense. It is to realize an air conditioner having a blow-out port with a structure that allows it.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention relates to an air conditioning equipment in which a heating means is provided at an air outlet, and an air blower frame for feeding adjusted air into a room through a duct and an indoor side opening portion of the air blower for adjusting air. An outlet that blows into the room, a face frame that is configured around the outlet, a sheet-shaped heating element that is attached near the face frame, a temperature detector that is attached near the face frame and detects the temperature of the face frame, The controller is configured to control the temperature of the sheet-shaped heating element so that the vicinity of the face frame does not approach the dew point of the indoor air based on the temperature information from the temperature detector.

[0006]

[Action]

 The outlet of the air conditioning equipment configured as described above detects the temperature of the face frame with a temperature detector, and when it is detected that the temperature is close to the dew point of the indoor air, the controller controls the applied voltage, The temperature of the sheet-shaped heat generator attached near the face frame is raised. When the temperature of the heating element rises, the temperature of the face frame also rises, and dew condensation stops.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 show a typical embodiment of the present invention, in which the adjusted air sent from a duct 5, cool air in this embodiment, is blown into a room from an outlet 1 via a blower frame 4. Indicates to blow out.

In FIGS. 1 and 2, the sheet-shaped heating element 3 is wound around the blower frame 4 in the vicinity of the blowout port. A lead wire 8 is connected to the sheet-shaped heating element 3 and is drawn out to the outside of the blower frame 4 to apply a voltage for use. The face frame 2 around the outlet 1 is kept cooled by blowing cool air for a long time. When the temperature falls close to the dew point of the indoor air, the temperature detector 7 attached to the back of the face frame 2 detects the dew point temperature and transmits temperature information to the controller 6 to raise the temperature of the sheet-shaped heating element 3 above the dew point. To do. The sheet-shaped heat-generating body 3 is attached to a position as close to the face frame 2 as possible, and controls the temperature of the face frame 2 so as not to approach the dew point without heating the blower frame 4 unnecessarily.

The sheet-shaped heating element 3 used in this example is a heating element cloth formed by spinning carbon fiber for which a relatively stable resistance value is obtained, glass fiber having a high insulating force, and a voltage applying conductor. Since the thickness is less than 1mm, it can be attached easily because it can be attached with an adhesive or fixed with a screw. Therefore, it is possible to use a round or elliptical blowout port without using any shape or material of the blowout port to provide a dew condensation prevention structure.

When the outlet is small as shown in FIGS. 3 and 4, it is possible to sufficiently raise the temperature of the face frame 2 simply by arranging the sheet-shaped heating element 3 vertically without winding it around the blower frame 4. Further, FIG. 4 shows an embodiment in which a part of the sheet-shaped heat generating element 3 is attached to the back side of the face frame 2, and the temperature raising effect is further enhanced. Further, as shown in FIG. 5, if the face frame is integrally formed by embedding it in the frame body as an intermediate material of the face frame 2, the sheet-shaped heat generating body 3 does not appear on the surface, and the dew condensation prevention effect is high. Can be realized.

[0011]

[Effect of device]

 As described above, in the air conditioner having the dew condensation preventing structure of the present invention, the sheet-shaped heating element having a thickness of about 1 mm is formed in the outlet, so that the outlet can be designed in any way and the heating wire is used. It is not restricted by size and shape as it is sometimes. In addition, it can be easily attached to the air blower frame by adhesive fixing, etc., and can be attached to the air outlet of the air conditioner that has already been installed without requiring large work.

[Brief description of drawings]

FIG. 1 is a front view of an outlet according to a first embodiment of the present invention.

FIG. 2 is a side sectional view of a first embodiment of the present invention.

FIG. 3 is a side cross-sectional view of an outlet in which sheet-like heating elements according to another embodiment of the present invention are vertically attached.

FIG. 4 is a side cross-sectional view of a blowout port in which a part of a sheet-shaped heat generating element according to another embodiment of the present invention is formed on the back side of a face frame.

FIG. 5 is a side cross-sectional view of a blowout port in which a sheet-like heating element according to another embodiment of the present invention is embedded in a face frame and integrally formed. 1 Blow-out port 2 Face frame 3 Sheet-like heating element 4 Blower frame 5 Duct 6 Controller 7 Temperature detector 8 Lead wire

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[Procedure amendment]

[Submission date] February 20, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 2

[Correction method] Change

[Correction content]

Claims (6)

[Scope of utility model registration request] 1. An air conditioner having an air outlet provided with heating means, and a blower frame for sending adjusted air into the room from a duct, and an outlet for blowing the adjusted air into the room, which is formed at an opening on the indoor side of the blower frame. A face frame formed around the outlet, a sheet-shaped heating element attached near the face frame, a temperature detector attached near the face frame for detecting the temperature of the outlet, and the temperature An air conditioner having a dew condensation preventing structure, comprising: a controller that controls the temperature of the sheet-shaped heating element so that the vicinity of the face frame does not approach the dew point of the indoor air according to the temperature information from the detector. 2. An air conditioner having a heating means at an air outlet, wherein the heating means is a sheet-shaped heating element formed by molding a carbon fiber woven with carbon fibers and a conductor with plastic. The air conditioner according to claim 1. 3. An air conditioner having a heating means at an air outlet, wherein the heating means is wound around a face frame of the blower frame.
Air conditioner described. 4. The air conditioner according to claim 1, wherein in the air conditioning equipment having a heating means at an air outlet, the heating means is arranged above and below the face frame of the blower frame. 5. The air-conditioning equipment having a heating means at an air outlet, wherein the heating means is partly provided on the back side of the face frame.
Air conditioner described. 6. The air conditioner according to claim 1, wherein the heating means is embedded in the face frame so as to be integrated in an air conditioning facility having a heating means at an air outlet.