JP2013170787A - Indoor unit of air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an indoor unit of an air conditioner with a display device capable of irradiating a wide range of display part with a light source installed in a space having a shallow depth while suppressing variations in light and shade.SOLUTION: An indoor unit includes a display device capable of changing a color in a display part according to an operating state of an air conditioner. The display device 7 includes at least a plurality of light sources 13 and a slanted reflecting surface 19 that reflects light emitted from the light sources 13. Light emitted from the light sources 13 is directly collected in or reflected on the reflecting surface 19 to be collected in the display part 15.

Description

  The present invention relates to an indoor unit of an air conditioner provided with a display device that displays an operation state by color.

A display device provided in an indoor unit of a recent air conditioner emits light emitters having different emission colors according to the operation state of the air conditioner, and enables the user to identify the operation state based on the difference in color. Yes.
For example, Patent Document 1 discloses a belt-shaped member made of a light-transmitting translucent material installed at an upper end portion of a ventilation path wall connected to the front lower suction port, and a belt-shaped member that is provided integrally with the belt-shaped member and has a predetermined interval in the lateral direction. A light receiving surface that receives light from below, a reflective surface that reflects light reflected from the light receiving surface above the light receiving surface, and a front suction in front of the reflective surface. A driving state display having a plurality of light emitting display parts of the same size as the light emitter that transmits the reflected light to the upper position communicating with the ventilation path wall in the mouth, and a plurality of lights for irradiating the driving state display part with light A light emitting source having a single light emitter is provided, and the position and color of irradiation are changed according to the driving state to inform the user of the driving state.

  Further, in Patent Document 2, a predetermined distance from the display unit to the light source (LED) is ensured, and the shape projected on the display unit is a large quadrangle, which is larger than the light emitting unit area of the light source. Some have improved the discriminability.

  In this specification, in order to inform the user of the operating state of the air conditioner, a portion that emits light is referred to as a display unit.

JP 2006-194563 A JP 2010-71555 A

The display device for an indoor unit of an air conditioner in Patent Document 1 irradiates a single light source with light on a display unit having the same size as the light source. Is difficult to identify. Therefore, when a plurality of light sources are provided and light is emitted to one wide display unit, when the display unit is irradiated, the brightness in the display unit is different from the portion facing each light source and its surroundings. Variations in brightness occur between the areas.
As in Patent Document 2, by increasing the distance between the display unit and the light source, it is possible to irradiate in a larger range than the light source. Light and dark variations occur. There is also a problem that the design is poor because the light source is visually recognized by the user. In order not to make the light source visible, it can be solved by securing a further distance, but it is not practical when the light source must be installed in an indoor unit of an air conditioner with a small depth.

  The present invention has been made in order to solve the above-described problems, and includes a display device that can irradiate a wide range of display units with a small variation in brightness with a light source installed in a space with a small depth. The purpose is to provide indoor units for air conditioners.

  An indoor unit of an air conditioner according to the present invention is an indoor unit including a display device capable of changing a color of a display unit according to an operating state of the air conditioner, wherein the display device includes a plurality of light sources, An inclined reflection surface that reflects light emitted from the light source, and the light emitted from the light source is reflected directly or by the reflection surface and is integrated in the display unit. It is what.

  By configuring as described above, it is possible to irradiate a wide range of display units with a small variation in brightness with a light source installed in a space with a small depth, and reliably notify the user of the operating condition of the air conditioner Can do.

It is a disassembled perspective view which shows the whole indoor unit of the air conditioner which concerns on embodiment of this invention. It is sectional drawing of the indoor unit of the air conditioner which concerns on embodiment of this invention. It is a front view of the indoor unit of the air conditioner according to the embodiment of the present invention. It is a front view shown excluding the display part design panel of the indoor unit of the air conditioner according to the embodiment of the present invention. 1 is an exploded perspective view of a display device according to an embodiment of the present invention. It is a front view of the display apparatus which concerns on embodiment of this invention. It is a front view shown except a display panel of a display concerning an embodiment of the invention. It is a perspective view shown except for the display panel of the display device according to the embodiment of the present invention. It is a conceptual diagram for demonstrating operation | movement of the display apparatus which concerns on embodiment of this invention.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of an indoor unit of an air conditioner equipped with a display device according to the present invention will be described based on the drawings.

FIG. 1 is an exploded perspective view showing the whole indoor unit of an air conditioner according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the indoor unit.
As shown in FIGS. 1 and 2, an indoor unit 100 of an air conditioner according to this embodiment includes a base 1, a blower fan 2, a heat exchanger 3, an electrical component box 4, a drain pan unit 5, and a display device holding unit. It has the part 6, the display apparatus 7, the housing | casing 8, the display part design panel 9, and the front design panel 10 which can be opened and closed up and down. A blower fan 2, a heat exchanger 3, an electrical component box 4, and a drain pan unit 5 are mounted on the base 1. The blower fan 2 sucks room air from the upper surface suction port 20 of the indoor unit 100 and passes through the heat exchanger 3 to exchange heat to cool air or warm air. The cool air or warm air is blown into the room from the air outlet 21. To do. The drain water condensed on the surface of the heat exchanger 3 is collected in the drain pan unit 5, and the collected water flows through a drain hose (not shown) and is discharged outside the room.

  As shown in FIG. 2, the display device 7 is mounted on the inner front side of the indoor unit 100, and irradiates the display unit 15 with respect to each operation state of the indoor unit 100 for cooling, heating, or dehumidification. It is a device for informing the user of the driving state by changing the color of light. For example, red is displayed for heating, blue is displayed for cooling, and green is displayed for dehumidification.

  The display device 7 is disposed below the front design panel 10 to facilitate identification to the user. Further, the display device 7 is fixed by a claw of the display device holding unit 6. The display device holding unit 6 is fixed to the drain pan unit 5 with a claw, and is further pressed from above by the display unit design panel 9. The display unit design panel 9 is fixed to the housing 8 with a claw and is pressed from above by the front design panel 10. That is, the user can confirm the color displayed on the display device 7 through the translucent display unit design panel 9 provided on the lower front side of the indoor unit 100 according to the operating state of the indoor unit 100. it can. The housing 8 is fixed to the base 1 and the drain pan unit 5 with screws.

FIG. 3 is a front view of the indoor unit 100, and FIG. 4 is a front view showing the indoor unit 100 except for the display unit design panel 9.
The display device 7 is disposed between the front design panel 10 and the air outlet 21 in an elongated manner in the longitudinal direction of the indoor unit 100. In this example, as shown in FIG. Are arranged symmetrically. The display part design panel 9 having translucency is substantially the same length as the entire length of the indoor unit 100. In addition, a pair of upper and lower air direction change plates 23 are provided in the air outlet 21 so as to be opened and closed symmetrically. Is provided.
The human detection sensor 22 detects the location of a person in the room, and a control device (not shown) determines the direction of the up / down air direction change plate 23 and the left / right air direction change plate (not shown) based on the detection signal of the human detection sensor 22. These are sensors that aim to blow air conditioned air in a comfortable direction.

Next, the structure of the display device 7 will be described with reference to FIGS.
5 is an exploded perspective view of the display device 7 according to the embodiment of the present invention, FIG. 6 is a front view of the display device 7 on the left side of FIG. 5, and FIG. 7 excludes the display panel 14 of the display device 7 of FIG. FIG. 8 is a perspective view of the display device 7 of FIG. The display device 7 has the same configuration on the left side and the right side.

  The display device 7 includes a display device housing 11, a substrate 12, a light source 13, and a display panel 14. As shown in FIGS. 7 and 8, the display device housing 11 has a substantially triangular cross section with an open front surface and a short depth. The display device housing 11 has a bottom surface 18 on the inner side of the display device housing 11. A substrate 12 mounted with a plurality of light sources 13 is installed, and an inclined reflecting surface (slope) 19 is formed on the back side of the display device housing 11 so as to reflect light in a wide range toward the opening. ing. A display panel 14 is attached to the opening of the display device casing 11 with an adhesive. For example, an LED is used as the light source 13, but is not limited thereto.

  The substrate 12 has a plurality of light sources 13 arranged in parallel, and is fixed to the bottom surface of the display device casing 11 with, for example, a claw. Unlike Patent Document 1, the display device housing 11 does not have any light blocking between the light source 13 and the light source 13 installed on the substrate 12. Therefore, there is an effect that the variation in brightness of the display portion in the display panel 14 can be suppressed and the configuration can be simplified. Further, the light source 13 can emit light of three colors (red, blue, and green) with one light source, and the color of the light emission is changed for each operation mode of the indoor unit 100 for cooling, heating, or dehumidification. It has become. The display panel 14 is formed of a display unit 15 that transmits light emitted from the light source 13 in the upper part, and a light source shielding unit 16 that makes the light source 13 invisible to the user directly in the lower part.

  The material of the display device 7 will be described. The display device casing 11 is formed of a white resin material so that light from the light source 13 can be reflected. The display unit 15 of the display panel 14 is formed of a transparent resin material. The light source shield 16 is formed of a resin material that does not transmit light.

Next, the operation will be described with reference to FIG. FIG. 9 is a conceptual diagram for explaining the operation of the display device 7.
Since the display device 7 of the indoor unit 100 of the air conditioner according to this embodiment is configured as described above, the light beams 17 emitted from the plurality of light sources 13 spread over a wide range as shown in FIG. The light is reflected directly or by the reflecting surface 19 and accumulated in the direction of the display panel 14. For this reason, the entire display unit 15 of the display panel 14 is irradiated with light and dark variations suppressed. Further, unlike Patent Document 1, direct light and indirect light are projected onto the display panel 14, so that more light than only indirect light is emitted to the display panel 14. It is possible to irradiate the part 15 over a wide range. Further, since there is no light blocking member between the light source 13 and the light source 13 installed on the substrate 12, the light beam 17 is mixed in the display device casing 11, thereby enhancing the effect of suppressing the variation in light and darkness. Can do. Note that light can be further diffused by mixing a diffusion material having a diffusion effect into the display unit 15 of the display panel 14. Further, by changing the color of light emitted from the light source 13 to, for example, red during the heating operation, blue during the cooling operation, and green during the dehumidifying operation according to the operation state of the indoor unit 100, the indoor unit It is possible to clearly notify the user of 100 driving states.
In addition, by providing the display design panel 9 colored with a color that allows light transmission on the front surface of the display device 7, the display device 7 can be made difficult to be viewed by the user.

As described above, according to this embodiment, it is possible to irradiate a wide range of the display unit 15 with small variations in brightness, and to reliably inform the user about the operating state of the indoor unit 100 of the air conditioner. it can.
In addition, from the front side of the unit of the indoor unit 100, the light source shielding unit 16 makes it difficult for the user to see the light source 13, and the design is improved. In addition, by printing a pattern such as a character, a figure, or a symbol on the display panel 14, the pattern can be copied and the design can be improved.
Since the distance from the light source 13 to the display panel 14 is short, the display panel 14 can be installed even in a space with a small depth.

  DESCRIPTION OF SYMBOLS 1 Base, 2 ventilation fan, 3 heat exchanger, 4 electrical component box, 5 drain pan unit, 6 display apparatus holding | maintenance part, 7 display apparatus, 8 housing | casing, 9 display part design panel, 10 front design panel, 11 display apparatus Case, 12 Substrate, 13 Light source, 14 Display panel, 15 Display unit, 16 Light source shielding unit, 17 Light beam, 18 Bottom surface, 19 Reflecting surface (Slope), 20 Top surface inlet, 21 Air outlet, 22 Human sensor, 23 Up / down wind direction change plate, 100 indoor unit.

Claims (3)

In an indoor unit equipped with a display device that can change the color of the display unit according to the operating state of the air conditioner,
The display device
Multiple light sources;
An inclined reflecting surface that reflects light emitted from the light source;
Comprising at least
An indoor unit of an air conditioner, wherein light emitted from the light source is reflected directly or reflected by the reflecting surface and accumulated in the display unit.   The indoor unit of an air conditioner according to claim 1, wherein the display unit includes a light diffusing material that diffuses light.   In addition to the display unit, the casing having the reflective surface includes a display panel having a light shielding unit that shields the light source from being visible, and a substrate on which the light source is mounted on an inner bottom surface. The indoor unit of the air conditioner according to claim 1 or 2.

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