JP5484110B2 - Indoor unit of display device and air conditioner - Google Patents

Description

  The present invention relates to a display device that displays information by projecting light emitted from a light source into a predetermined shape, and an indoor unit of an air conditioner including the display device.

  A sheet in which a plurality of light transmitting parts that transmit light are formed in a character, figure, or symbol, and a substrate on which LEDs (Light Emitting Diodes) are arranged at positions corresponding to all the light transmitting parts on the back side of the sheet; There is a display device comprising: In this display device, the lighting of the LED is controlled according to the information to be displayed. And the light which LED emits permeate | transmits the light transmissive part formed in the position corresponding to lit LED, and information is displayed by projecting on a predetermined plane.

Japanese Utility Model Publication No. 1-164482

In the display device described above, in order to display the characters, figures, and symbols formed on the sheet, it is necessary to arrange LEDs at positions corresponding to all the characters, figures, and symbols on the back side of the sheet, and many LEDs Is required. When there is a lot of information to be displayed, a large number of LEDs are required, which causes an increase in cost.
An object of the present invention is to reduce the number of light sources such as LEDs.

A display device according to the present invention includes:
A sheet having a plurality of light transmission parts through which light is transmitted, each light transmission part of the plurality of light transmission parts formed in a shape representing each display information of a plurality of display information;
A substrate disposed on the back side of the sheet and provided with a light source;
A moving mechanism for moving the substrate along the back surface of the sheet;
And a control unit that controls the moving mechanism to move the substrate according to which display information of the plurality of display information is displayed.

In the display device according to the invention comprises a moving mechanism for moving the substrate in which the light source is installed to move the substrate in accordance with whether to display which displays information. Therefore, in this display device, it is not necessary to arrange light sources at positions corresponding to all the light transmission units, and the number of light sources can be reduced.

The disassembled perspective view of the indoor unit of an air conditioner. Sectional drawing of the indoor unit of the air conditioner shown in FIG. The disassembled perspective view of the LED display apparatus 3 of a fundamental structure. Sectional drawing of the LED display apparatus 3 shown in FIG. FIG. 3 is a clear diagram showing the LED display device 3 according to the first embodiment. The figure which shows the LED display apparatus 3 of a structure different from FIG. The figure which shows the LED display apparatus 3 of a structure different from FIG.

Embodiment 1 FIG.
FIG. 1 is an exploded perspective view of an indoor unit of an air conditioner.
FIG. 2 is a cross-sectional view of the indoor unit of the air conditioner shown in FIG.
The indoor unit of the air conditioner includes a design panel 1, a housing 2, an LED display device 3, an automatic filter cleaning mechanism 4, a drain pan unit 5, a heat exchanger 6, a blower fan 7, an electrical component box 8, and a base 9. . The automatic filter cleaning mechanism 4 includes a filter 10 and a dust box 11. The electrical component box 8 houses electrical components for driving the LED display device 3, the blower fan 7, and the like.
The drain pan unit 5, the heat exchanger 6, the blower fan 7, and the electrical component box 8 are fixed to the base 9. The filter automatic cleaning mechanism 4 is disposed so as to cover the top surface side of the heat exchanger 6. The automatic filter cleaning mechanism 4 is fixed by hooking a claw on the base 9 on the top surface side, and fixed to the heat exchanger 6 mounted on the base 9 with screws. The LED display device 3 is disposed on the front side and is fixed to the drain pan unit 5 and the automatic filter cleaning mechanism 4. The housing 2 accommodates the LED display device 3, the automatic filter cleaning mechanism 4, the drain pan unit 5, the heat exchanger 6, the blower fan 7, and the electrical component box 8 between the base 9. The housing 2 is fixed to the base 9, the automatic filter cleaning mechanism 4, and the LED display device 3 with screws. Note that an opening 2a is provided on the front surface side of the housing 2, and an opening 2b is provided on the top surface side. The LED display device 3 is disposed in the opening 2 a portion of the housing 2. The design panel 1 is attached to the housing 2 so that it can be opened and closed.

The blower fan 7 sucks indoor air into the housing 2 through the opening 2 b of the housing 2. The indoor air sucked into the housing 2 is heat-exchanged with a refrigerant sent from an outdoor unit (not shown) by the heat exchanger 6, and becomes cold air or warm air. And the ventilation fan 7 ventilates cold air or warm air indoors from the drain pan unit 5 provided with a flap. Thereby, indoor cooling or heating is performed.
The filter 10 included in the automatic filter cleaning mechanism 4 is disposed between the opening 2 b of the housing 2 and the heat exchanger 6, that is, on the windward side of the heat exchanger 6. Therefore, when indoor air is sucked into the housing 2 by the blower fan 7, dust and dirt in the indoor air are removed by the filter 10, and dust and dust are prevented from adhering to the heat exchanger 6. The automatic filter cleaning mechanism 4 has a function of removing dust adhering to the filter 10. Dust and dust removed by the automatic filter cleaning mechanism 4 are accumulated in the dust box 11.

FIG. 3 is an exploded perspective view of the LED display device 3 having a basic configuration.
FIG. 4 is a cross-sectional view of the LED display device 3 shown in FIG.
The LED display device 3 includes a display unit cover 12, a print sheet 13, a substrate holder 14, a substrate 15, and a display unit holder 17.
The substrate 15 is screwed to the substrate holder 14. A print sheet 13 is attached to the front side of the substrate holder 14. The print sheet 13, the substrate holder 14, and the substrate 15 are sandwiched and fixed between the display unit holder 17 and the display unit cover 12.

A plurality of characters, symbols, and figure-shaped contours representing display information are printed on the print sheet 13. The print sheet 13 serves as a light transmitting portion 18 that transmits light only in a portion where characters, symbols, and contours of figure shapes are printed. That is, the portion of the print sheet 13 other than the portion where characters, symbols, and contours of graphic shapes are printed is light-shielding. Since a plurality of characters, symbols, and figure-shaped contours are printed on the print sheet 13, a plurality of light transmission portions 18 exist.
On the substrate 15, the LEDs 16 are arranged corresponding to the portions where all the characters, symbols, and contours of the figure shape are printed, that is, all the light transmitting portions 18.

The LED display device 3 turns on only the LEDs 16 arranged corresponding to the display information to be displayed and turns off the other LEDs 16 by a control unit (not shown). The light generated from the lit LED 16 is transmitted through the corresponding light transmitting portion 18 and projected onto the design panel 1. Since the light transmission part 18 is formed in the outline of the character, symbol, and figure shape showing display information, the outline of the character, symbol, and figure shape showing display information is projected on the design panel 1. Thereby, the LED display device 3 projects and displays the characters, symbols, and figure-shaped contours representing the display information to be displayed on the design panel 1.
In addition, since the design panel 1 is molded with a transparent resin material and painted in a color that allows light to pass through, the display information displayed by the LED display device 3 can be visually recognized from the front side.

FIG. 5 is a diagram showing the LED display device 3 according to the first embodiment. In FIG. 5, the display unit cover 12 and the display unit holder 17 are omitted for simplicity.
The LED display device 3 illustrated in FIG. 5 includes a moving mechanism 19 in addition to the configuration of the LED display device 3 illustrated in FIG. 3. The moving mechanism 19 includes a motor 20, a gear 21, a shaft 22, and a belt 23. The substrate 15 is attached to the belt 23 of the moving mechanism 19. The LED display device 3 operates the motor 20 by the control unit to rotate the gear 21 and the shaft 22 and move the belt 23. Thereby, the board | substrate 15 can be slid to the horizontal direction (X direction of FIG. 5) along the back surface of the printing sheet 13. FIG.
In the LED display device 3 shown in FIG. 5, the number of LEDs 16 included in the substrate 15 is smaller than that of the LED display device 3 shown in FIG. 3. That is, in the LED display device 3 shown in FIG. 3, the LEDs 16 are arranged corresponding to all of the light transmission parts 18, but in the LED display device 3 shown in FIG. 5, it is necessary to light them simultaneously. A minimum number of LEDs 16 are arranged.
In the LED display device 3 shown in FIG. 5, the control unit controls the motor 20 of the moving mechanism 19 according to display information to be displayed, and moves the substrate 15 to the back surface of the light transmission unit 18 indicating the display information. Then, only the LEDs 16 arranged corresponding to the display information are turned on, and the other LEDs 16 are turned off. Thereby, the LED display device 3 projects and displays the characters, symbols, and figure-shaped contours representing the display information to be displayed on the design panel 1.

  As described above, in the LED display device 3 shown in FIG. 5, the number of LEDs 16 can be reduced, and the cost can be reduced.

In the above description, the light transmitting portion 18 has been described as being formed by printing on the print sheet 13. However, the light transmission part 18 may be formed by a hole, for example.
Further, the configuration of the moving mechanism 19 in the above description is an example, and other configurations may be used. In particular, in FIG. 5, the moving mechanism 19 is configured to move the substrate 15 only in the lateral direction (X direction in FIG. 5), but is configured to be movable in the vertical direction (Y direction in FIG. 5). May be.

Further, the LED display device 3 shown in FIG. 5 cannot display all display information at the same time. Therefore, when there is a lot of display information to be displayed, the display information is switched in order by moving the substrate 15 and displaying the information.
As shown in FIG. 6, a moving mechanism 19 that can move only the back surface of the light transmitting portion 18A may be provided, and the substrate 15 may be fixedly disposed on the back surface of the light transmitting portion 18B. In this case, the display information represented by the light transmission portion 18A is sequentially switched and displayed. However, the display information represented by the light transmission part 18B can be displayed simultaneously with the display information represented by the light transmission part 18A.
Moreover, as shown in FIG. 7, you may provide 19 A of moving mechanisms which can move only the back surface of the light transmissive part 18C, and the moving mechanism 19B which can move only the back surface of the light transmissive part 18D. In this case, the display information represented by the light transmission part 18C is switched and displayed in order, and the display information represented by the light transmission part 18D is also switched and displayed in order. However, the display information represented by the light transmission unit 18C and the display information represented by the light transmission unit 18D can be displayed simultaneously.

  To summarize the above, the LED display device 3 includes a printed sheet 13 that is printed by being rimmed so as to transmit light in the form of characters, figures, and symbols, and a substrate 15 on which a plurality of LEDs 16 are arranged along the back side of the printed sheet 13. And a movable mechanism 19 that can be moved. The substrate 15 is moved to a designated position on the back side of the print sheet for display purposes, so that the print sheet 13 emits light in the form of characters, figures, and symbols.

  DESCRIPTION OF SYMBOLS 1 Design panel, 2 housing | casing, 3 LED display apparatus, 4 filter automatic cleaning mechanism, 5 drain pan unit, 6 heat exchanger, 7 ventilation fan, 8 electrical component box, 9 base, 10 filter, 11 dust box, 12 display part Cover, 13 Print sheet, 14 Substrate holder, 15 Substrate, 16 LED, 17 Display unit holder, 18 Light transmission unit, 19 Moving mechanism, 20 Motor, 21 Gear, 22 Shaft, 23 Belt.

Claims (2)

A sheet having a plurality of light transmission parts through which light is transmitted, each light transmission part of the plurality of light transmission parts formed in a shape representing each display information of a plurality of display information;
A substrate disposed on the back side of the sheet and provided with a plurality of light sources;
A moving mechanism for moving the substrate along the back surface of the sheet;
According to which display information of the plurality of display information is to be displayed, the moving mechanism is controlled to move the substrate and which light source among the plurality of light sources provided on the substrate is turned on is controlled. A display unit. An air conditioner indoor unit,
A housing for storing the heat exchanger;
A design panel that is molded with a transparent resin material, painted in a color that allows light to pass through, and is attached to the front surface of the housing so as to be opened and closed;
A display device according to the casing according to claim 1 which is disposed on the front side of,
With
An indoor unit of an air conditioner, wherein the display information displayed by the display device is projected onto the design panel and displayed on the front surface thereof.

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