JP2017044920A - Display device and air conditioner comprising the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device that improves the visibility of the display unit, and an air conditioner comprising the display device.SOLUTION: When an LED 15aa is turned on, light emitted from the LED 15aa goes directly from the LED 15aa to a display unit 15a of a display panel 15d, or goes toward the display unit 15da while hitting against and reflected by a light guide portion 15ba and a light reflection portion 15ca existing between the LED 15aa and the display unit 15da. Of the light, light going toward the display unit 15da while hitting against and reflected by the light guide portion 15ba and the light reflection portion 15ca is weakened a little when it is reflected by the light guide portion 15ba, but is hardly wakened when it is reflected by the light reflection portion 15ca because the light reflection portion 15ca arranged at the nearest to the display unit 15da is covered with a metallic-colored coating film or metallic plating film.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a display device that displays an operation state of equipment and various notifications and warnings, and more particularly to a display device mounted on an air conditioner such as an air purifier or a dehumidifier.

  Conventionally, floor-mounted air conditioners such as air purifiers and dehumidifiers are provided with a display device for displaying the current operation state and various notifications and warnings. For example, Patent Document 1 discloses a display device provided in a dehumidifier that is a kind of floor-mounted air conditioner, and the display unit of the display device uses a light source such as an LED to In addition to displaying the operation status such as whether operation / stop or energy-saving operation is performed, the current humidity is displayed and a warning is displayed to indicate that the water tank is full.

  In general, the display device as described above has an operation board on which LEDs and operation buttons as light sources are mounted, and an operation panel arranged to cover the operation board. The operation panel includes an operation switch for pressing the operation button and a display unit that transmits light emitted from the LED. The display unit is configured by providing a hole in a part of the operation panel or by using a part of the operation panel as a translucent member. Between the LED and the display unit, a light guide unit that is formed in a cylindrical shape and guides the light emitted from the LED to the display unit without diffusing is disposed.

JP 2010-249349 A

  When the light guide unit described above is provided, the light emitted from the LED travels to the display unit without diffusing, so that the display on the display unit becomes brighter than when the light guide unit is not provided. In a floor-mounted air conditioner, since a user often visually recognizes the display unit from directly above or obliquely from above, if the display on the display unit becomes bright, the visibility of the display unit is improved. However, since the light emitted from the LED, other than the light that goes straight to the display section, proceeds to the display section while reflecting on the inner wall of the light guide path, the light is attenuated and displayed each time it is reflected on the inner wall of the light guide path. There was a risk that the brightness of the display at the screen could not be obtained sufficiently. In particular, when the display unit is viewed obliquely from above, the light that has been weakened by the reflection is confirmed, which may deteriorate the visibility of the user.

  An object of the present invention is to solve the above-described problems and to provide a display device in which the visibility of a display unit is improved and an air conditioner including the display device.

  The present invention solves the above-described problems, and the display device of the present invention includes a light emitting member, a light guide unit, and a display unit, and the light guide unit displays light emitted from the light emitting member. Lead to the department. And the light reflection part which reflects the light emitted from the light emitting member is provided between the light guide part and the display part.

  In the display device of the present invention, since the light reflecting portion is provided in the vicinity of the display portion in the light guide path, the intensity of light in the vicinity of the display portion is increased, the display portion is brightened, and the visibility of the display portion is improved.

It is an appearance perspective view of an air cleaner in an embodiment of the present invention. It is a top view of an air cleaner in an embodiment of the present invention. It is XX sectional drawing in FIG. It is a disassembled perspective view of the display apparatus in embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is principal part explanatory drawing of the display apparatus in embodiment of this invention, (A) is a principal part top view, (B) is YY sectional drawing in (A). It is the C section enlarged view in FIG.

  Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. As an embodiment, a display device mounted on an air purifier that is a kind of air conditioner will be described as an example. The present invention is not limited to the following embodiments, and can be variously modified without departing from the gist of the present invention.

As shown in FIGS. 1 and 2, the air cleaner 1 according to the embodiment of the present invention includes a top panel 11a, a right panel 11b, a left panel 11c, a bottom 11d, and a front panel, each formed of a synthetic resin material. 12, a front panel 13 and a rear panel 14 have a main body 11 formed in a substantially rectangular parallelepiped shape. A surface formed by the top panel 11a, the upper end 12a of the front panel 12, the upper end 13e of the front panel 13, and the upper end 14e of the rear panel 14 is the upper surface of the main body 11. A surface formed by the right side panel 11b, the right end 12b of the front panel 12, the right end 13f of the front panel 13, and the right end 14f of the rear panel 14 is the right side of the main body 11. A surface formed by the left side panel 11 c, the left end 12 c of the front panel 12, the left end 13 g of the front panel 13, and the left end 14 g of the rear panel 14 is the left side of the main body 11. A surface formed by the bottom portion 11 d, the lower end portion 13 h of the front panel 13 and the lower end portion 14 h of the rear panel 14 is the bottom surface of the main body portion 11.
In the following description, if necessary, the front panel 12 side of the main body 11 is the front side, the rear panel 14 side of the main body 11 is the back side, the right side panel 11b side of the main body 11 is the right side, and the left side of the main body 11 is. The surface panel 11c side is referred to as the left side.

  The front panel 13 is disposed in front of the front panel 12. Between the front panel 13 and the front panel 12, four gaps are formed vertically and horizontally. A gap formed in front of the upper surface of the main body 11 is formed on the upper surface inlet 13a, and a gap formed in front of the right side of the main body 11 is formed in front of the right side inlet 13b and the left side of the main body 11. The gap is the left side inlet 13c, and the gap formed in front of the bottom surface of the main body 11 is the bottom inlet 13d.

  Further, three gaps are formed between the main body 11 and the rear panel 14 on the upper / left and right sides. A gap formed at the rear of the upper surface of the main body 11 is formed at the upper surface outlet 14a, and a gap formed at the rear of the right side of the main body 11 is formed at the rear of the right side outlet 14b and the left side of the main body 11. The gap is the left side outlet 14c.

  In the air cleaner 1, the air sucked into the main body 11 from the upper surface inlet 13 a, the right side inlet 13 b, the left side inlet 13 c, and the bottom inlet 13 d is supplied from the upper surface outlet 14 a, the right side outlet 14 b, and While the air is blown from the left side air outlet 14c to the room, the dust is removed, humidified and deodorized.

  The upper surface suction port 13a, the right side surface suction port 13b, the left side surface suction port 13c, and the bottom surface suction port 13d communicate with the top surface outlet 14a, the right side surface outlet 14b, and the left side surface outlet 14c, as shown in FIG. The space inside the main body 11 is the ventilation path 10 in the air cleaner 1 of the present invention. In the following description, the air suction ports 13a to 13d in the ventilation path 10 will be described as the upstream side and the air outlets 14a to 14c side as the downstream side as necessary.

  In the ventilation path 10, a pre-filter 21, a dust collection unit 22, a deodorizing unit 23, a humidification unit 24, and a blower 25 are arranged in order from the upstream side to the downstream side.

  For example, the prefilter 21 has a mesh structure formed by braiding a thread-like PET material, and captures dust contained in the air sucked into the main body 11 from the air suction ports 13a to 13d.

  The dust collecting unit 22 includes a first electric dust collector 22a and a second electric dust collector 22b. The first electrostatic precipitator 22a and the second electrostatic precipitator 22b are arranged side by side in a vertical direction on the partition plate 16 disposed between the pre-filter 21 and the deodorizing unit 23 in the ventilation path 10. The first electrostatic precipitator 22a and the second electrostatic precipitator 22b each have a casing formed of a synthetic resin material in a box shape, and a discharge electrode and a dust collecting electrode (not shown) are provided inside each casing. ing. The first electric dust collector 22a and the second electric dust collector 22b are provided with a dust collection port 22aa and a dust collection port 22ba on the front surface of each housing (surface facing the upstream side of the ventilation path 10). The first electrostatic precipitator 22a and the second electrostatic precipitator 22b are configured to corona discharge fine dust, pollen, and the like that could not be removed by the prefilter 21 contained in the air taken in from the dust collector 22aa and the dust collector 22ba. The charged dust and pollen are captured by the dust collecting electrode.

  The deodorizing unit 23 includes a deodorizing filter 23a and a heating unit 23f. The deodorizing filter 23a is formed, for example, by forming a substrate having a porous structure such as a corrugated structure or a honeycomb structure formed by alternately laminating flat materials and bent materials continuously bent into a corrugated shape, Although omitted, the substrate is provided with a catalyst layer that adsorbs and decomposes odor components. The heating unit 23f includes a PTC heater 23b, two heat radiating plates 23c, two heat insulating materials 23d, and two cases 23e. The PTC heater 23b is attached to the heat radiating plate 23c disposed on the front surface side of the two heat radiating plates 23c, and heats the two heat radiating plates 23c. The two heat radiating plates 23c are each a metal plate formed in a substantially triangular shape, and are arranged so as to cover a part of the deodorizing filter 23a. Since the two heat radiating plates 23c are configured to come into contact with the portion located at the center of the deodorizing filter 23a or the outer diameter side of the deodorizing filter 23a, the heat radiating plate 23c disposed on the front side by the PTC heater 23b. In addition, the heat sink 23c on the back side is also heated. The heat insulating material 23d is disposed so as to cover the PTC heater 23b and the heat radiating plate 23c, and suppresses heat from the PTC heater 23b and the heat radiating plate 23c from escaping to the outside. The case 23e is formed in a shape that can hold the PTC heater 23b, the heat radiating plate 23c, and the heat insulating material 23d.

  When regenerating the deodorizing ability of the deodorizing filter 23a, the two heat sinks 23c are heated by the PTC heater 23b, and a part of the deodorizing filter 23a covered by the two heat sinks 23c is heated. By heating the deodorizing filter 23a while rotating the deodorizing filter 23a by a motor (not shown), decomposition of odor components adsorbed on the catalyst layer 23ab of the deodorizing filter 23a is promoted, and the deodorizing ability of the deodorizing filter 23a is regenerated. .

  The humidification unit 24 has a humidification filter 24a and a water storage tank 24b for storing water. The humidifying filter 24a is formed in a disc shape, and a part of the humidifying filter 24a is rotatably supported by a rotating shaft in a state where the humidifying filter 24a is immersed in water stored in the water storage tank 24b, and is rotated by a motor (not shown). Yes.

  The blower 25 includes a turbo fan 25a and a fan motor 25b. The turbo fan 25a is made of a synthetic resin material and is connected to the output shaft of the fan motor 25b. The fan motor 25b has a variable number of revolutions, and the turbo fan 25a also rotates as the fan motor 25b rotates, and air flows into the air purifier 1 from the air suction ports 13a to 13d by the rotation of the turbo fan 25a. The air flows out from the air cleaner 1 through the air outlets 14a to 14c.

  When the air cleaner having the above-described configuration starts operation, the blower 25 is driven and energization is started to the first electric dust collector 22a and the second electric dust collector 22b of the dust collection unit 22. Further, when air is humidified together with air purification, the humidification filter 24a of the humidification unit 24 starts rotating. When the blower 25 is driven, air is sucked into the suction passage 10a of the ventilation passage 10 from the air suction ports 13a to 13d of the upper surface suction port 13a, the right side suction port 13b, the left side suction port 13c, and the bottom surface suction port 13d.

  The air sucked into the suction passage 10a is: 1) Pre-filter 21 → suction passage 10a → dust collection at a place where the lower portion of the deodorizing unit 23 and the upper portion of the humidification unit 24 are arranged in the front-rear direction in the ventilation passage 10. 2) In order of unit 22 → deodorizing unit 23 → humidifying unit 24, 2) Pre-filter 21 → suction path at the place where the lower part of deodorizing unit 23 and the upper part of humidifying unit 24 in ventilation path 10 are not overlapped in the front-rear direction. It flows in the order of 10a → dust collecting unit 22 → deodorizing unit 23, or prefilter 21 → suction passage 10a → dust collecting unit 22 → humidifying unit 24, respectively. At this time, dust and pollen contained in the air sucked by the prefilter 21 and the energized dust collection unit 22 are removed. Moreover, the odor component contained in the air sucked by the deodorizing unit 23 is removed, and the air sucked by the humidifying unit 24 is humidified.

  As shown in FIG.1 and FIG.2, the display apparatus 15 is provided in the upper surface of the main-body part 11 of the air cleaner 1 so that a part of upper surface inlet 13a may be covered. As shown in FIGS. 3 and 4, the display device 15 includes a substrate unit 15 a, an operation unit 15 b, a cover unit 15 c, and a display panel 15 d.

  As shown in FIG. 4, the substrate unit 15 includes a printed circuit board 15ac on which a plurality of operation switches 15ab and a plurality of LEDs 15aa are mounted. The operation switch 15ab includes a power switch for turning the air cleaner 1 on and off, an operation mode selector switch for selecting an operation mode of the air cleaner 1 (air purification only / humidification / air purification, etc.), and an air volume (weak / It is provided in accordance with a function that can be selected by the air purifier 1 such as an air volume changeover switch for selecting “medium / strong”. The operation switch 15ab is mounted side by side in the left-right direction on the front side of the printed circuit board 15ac.

  The LED 15aa displays the function selected by the operation of the operation switch 15ab described above, notifies the user (for example, the current humidity), warns (for example, the amount of water in the humidifying water tank is insufficient), and the like. It is provided according to the function that can be selected and the contents of the notification / warning. The LED 15aa is mounted on the printed circuit board 15ac on the back side of the operation switch 15ab, and for displaying a function, the LED 15aa is mounted in the vicinity of the operation switch 15ab for selecting the function.

  In addition to these LEDs 15aa and operation switches 15ab, various electronic components such as resistors, capacitors, control ICs, and the like are mounted on the printed circuit board 15ac on the board unit 15, but illustration and detailed description thereof are omitted.

  The operation unit 15b includes an operation unit body 15be formed of a synthetic resin material in a horizontally long plate shape, a pressing unit 15bb having the same number as the operation switch 15ab of the substrate unit 15a, and the same number of light guide units 15ba as the LEDs 15aa of the substrate unit 15a. A buffer material 15bd is provided.

  The pressing portion 15bb is formed in a substantially rectangular parallelepiped shape. The pressing portion 15bb is cantilevered by the operation portion main body 15be with a thin arm (not shown), and is movable in the vertical direction by elastically deforming the arm. The pressing portions 15bb are arranged in the left-right direction on the front side of the operation portion main body 15be, and are arranged corresponding to the arrangement of the operation switches 15ab on the substrate portion 15a. Each pressing portion 15bb is provided with a convex portion 15bc so as to extend downward from the lower surface of the pressing portion 15bb. When the pressing portion 15bb is pressed, the convex portion 15bc of the pressed pressing portion 15bb has a corresponding operation switch 15ab. It is designed to be pressed.

  The light guide portion 15ba is formed in a cylindrical shape. The light guide unit 15ba is arranged on the rear side of the pressing unit 15bb in the operation unit main body 15be and corresponding to the arrangement of the LEDs 15aa on the substrate unit 15a. The cylindrical light guide portion 15ba is opened on the substrate portion 15aa side and a cover portion 15c side described later, and guides light emitted from the LED 15aa to the display portion 15da of the display panel 15d through the cover portion 15c.

  The buffer material 15bd is formed by forming an elastic material (for example, rubber) into a sheet shape, and is disposed so as to cover the pressing portion 15bb. Thereby, the buffer material 15bd is disposed between the pressing portion 15bb and the operation button 15cb when the cover portion 15c is attached to the operation portion 15b.

  The cover portion 15c has a horizontally long plate-shaped cover portion main body 15ce formed of a synthetic resin material, the same number of operation buttons 15cb as the pressing portion 15bb of the operating portion 15b, and the same number of light reflecting portions as the light guide portions 15ba of the pressing portion 15bb. 15ca is provided. The entire surface of the cover portion 15c is covered with a metal plating film in order to improve the design of the operation button 15cb.

  The plurality of operation buttons 15cb are formed in a substantially rectangular parallelepiped shape. The operation button 15cb is cantilevered by the cover body 15ce with two arms 15cc, and can be moved in the vertical direction by elastically deforming the arm 15cc. The operation buttons 15cb are arranged in the left-right direction on the front surface side of the cover main body 15ce, and are arranged corresponding to the arrangement of the pressing unit 15bb in the operation unit 15b.

  The light reflecting portion 15ca is formed by covering the inner surface of the through hole penetrating the cover portion main body 15ce up and down with metal plating similarly to the surface of the cover portion 15c. In the present embodiment, as shown in FIGS. 4 and 5A, the shape of the through hole for forming the light reflecting portion 15ca is roughly classified into four types. The first is seven through holes formed in a rectangular shape between the two arms 15cc, and the inner surface of these through holes is the first light reflecting portion 15ca1. The second is six through holes formed in a semicircular shape on either the left or right side of the arm 15cc, and the inner surface of these through holes is the second light reflecting portion 15ca2. The third is two through holes formed in a three-quarter circle shape on the left side of the arm 15cc, and the inner surface of this through hole is the third light reflecting portion 15ca3. The fourth is seven through holes formed in a circular shape on the back side of the arm 15cc and the first light reflecting portion 15ca1 to the third light reflecting portion 15ca3, and the inner surface of this through hole is the fourth light. It is a reflection part 15ca4. The through holes forming the first light reflecting portion 15ca1 to the fourth light reflecting portion 15ca4 are arranged corresponding to the arrangement of the light guide portion 15ba in the operation portion 15b.

  The cover body 15ce of the cover member 15c is provided with a plurality of slits 15cd in addition to the through holes that form the first light reflecting portion 15ca1 to the fourth light reflecting portion 15ca4. The arm 15cc is formed by a through-hole forming the slit 15cd and the light reflecting portion 15ca, so that the operation button 15cb is cantilevered on the cover body 15ce and the operation button 15cb can be moved in the vertical direction.

  The display panel 15d has a panel body 15dc formed of a colorless and transparent synthetic resin material in a horizontally long plate shape, the same number of through-holes 15db as the operation buttons 15cb of the cover portion 15c, and the same number as the light reflection portions 15ca of the cover portion 15c. A display unit 15da is provided.

  The through holes 15db are arranged in the left-right direction on the front side of the panel main body 15dc and are arranged corresponding to the arrangement of the operation buttons 15cb in the cover portion 15c. Each through-hole 15db has a shape corresponding to the shape of each corresponding operation button 15cb. When the display panel 15d is attached to the cover portion 15c, each operation button 15cb corresponds to each display hole from the corresponding through-hole 15db. It protrudes to the upper part of 15d.

  The display unit 15da is formed in a circular shape. The display portion 15da is disposed on the back side of the through-hole 15db in the panel body 15dc and corresponding to the arrangement of the light reflecting portion 15ca in the cover portion 15c. The display portion 15da is formed by printing except a portion that becomes the display portion 15da when a layer (non-transparent layer) that does not transmit light (not shown) is provided on the back surface of the display panel 15d by printing or the like. Thereby, in the display part 15da, the colorless and transparent synthetic resin material which comprises the panel main body 15dc is exposed, Therefore The light emitted from LED15aa permeate | transmits display part 15da.

  It should be noted that when printing an impermeable layer on the display panel 15d, the names of functions performed by operating the operation buttons 15cb and the contents of notification to the user around the through-holes 15db and around the display unit 15da, and Print with warnings.

  The display device 15 is completed by combining the substrate unit 15a, the operation unit 15b, the cover unit 15c, and the display panel 15d described above in this order. Specifically, the operation unit 15b is mounted on the upper side of the substrate unit 15a, then the cover unit 15c is mounted on the upper side of the operation unit 15b, and finally the display panel 15d is mounted on the upper side of the cover unit 15c. Each member is mounted by screwing, mechanical fitting, or bonding with an adhesive or double-sided tape.

  Next, the operation and effects of the display device 15 of the present invention described above will be described with reference to FIG. 5A shows a top view in a state where the display panel 15d which is the uppermost layer of the display device 15 is removed for easy understanding of the description described below. FIG. 5B is a cross-sectional view taken along the line YY in FIG. 5A. The light L emitted from the LED 15aa of the substrate portion 15a is the light of the light guide portion 15ba and the cover portion 15c of the operation portion 15b. The light is guided to the display unit 15da of the display panel 15d through the reflection unit 15ca (in the cross-sectional view of FIG. 5B, the first light reflection unit 15ca1 and the fourth light reflection unit 15ca4, hereinafter referred to as the light reflection unit 15ca). It shows how it is written.

  In a state where the members are combined in the display device 15, as shown in FIG. 5B, the convex portion 15bc provided on the pressing portion 15bb of the operation portion 15b is in contact with the operation switch 15ab of the substrate portion 15a. It arrange | positions and it arrange | positions so that the upper end part of pressing-down part 15bb may contact the lower end part of the operation button 15cb of the cover part 15c via the buffer material 15bd. Accordingly, when the user presses the operation button 15cb, the pressing part 15bb corresponding to the pressed operation button 15cb is pressed downward, and the convex part 15bc of the pressing part 15bb is pressed the corresponding operation switch 15ab. .

  The light guide portion 15ba of the operation portion 15b is disposed so as to cover the LED 15aa of the substrate portion 15a, and the light reflection portion 15ca of the cover portion 15c is guided to the upper end portion of the light guide portion 15ba of the operation portion 15b. It arrange | positions without the clearance gap between the upper end part of the part 15ba. In addition, the positional relationship between the operation button 15cb, the pressing portion 15bb, and the operation switch 15ab, and the positional relationship between the LED 15aa, the light guide portion 15ba, and the light reflecting portion 15ca, all other than the portion shown in the cross section in FIG. Is the same as

  When the user presses the operation button 15cb, the pressing portion 15bb corresponding to the pressed operation button 15cb is pressed as described above, and the convex portion 15bc of the pressing portion 15bb presses the operation switch 15ab. As a result, the function corresponding to the pressed operation switch 15ab is switched, and the LED 15aa indicating the switched function is turned on.

  When the LED 15aa is turned on, the light emitted from the LED 15aa goes straight from the LED 15aa to the display unit 15da of the display panel 15d, or the light guide unit 15ba or light reflection existing between the LED 15aa and the display unit 15da. Heading toward the display portion 15da while being reflected by the portion 15ca.

  Among the above, the light traveling toward the display unit 15da while being reflected by the light guide unit 15ba or the light reflection unit 15ca is weakened when reaching the light reflection unit 15ca when reflected by the light guide unit 15ba. And the visibility of display part 15da changes with whether the light reflection part 15ca covered with the metal plating film is provided like this embodiment.

  When the light reflecting portion 15ca is provided, for example, when the light emitted from the LED 15aa directly reaches the light reflecting portion 15ca as in the optical path L1 shown in FIG. 5B, the light reflecting portion 15ca It is hardly attenuated when light is reflected. Further, as in the optical path L2, when the light emitted from the LED 15aa reaches the light reflecting portion 15ca after being reflected by the light guiding path 15ba a plurality of times, it is weakened every time the light is reflected by the light guiding path 15ba. When light is reflected by the light reflecting portion 15ca, it is hardly weakened. On the other hand, when the light reflecting portion 15ca is not provided, the light that has reached the vicinity of the display portion 15da in the optical path L1 and the optical path L2 described above is weakened when reflected in the vicinity of the display portion 15da.

  The visibility on the display unit 15da varies depending on the brightness of the display unit 15da, and the brightness of the display unit 15da is caused by the intensity of light reaching the display unit 15da in the optical path L1 and the optical path L2. Therefore, as in the present embodiment, when the light reflecting portion 15ca is provided, the intensity of the light reaching the display portion 15da is stronger than when the light reflecting portion 15ca is not provided. Since the brightness of the part 15da becomes brighter, the visibility of the display part 15da is improved. In particular, as in the present embodiment, when the light reflecting portion 15ca is disposed in the vicinity of the lower portion of the display portion 15da, the display device 15 is displayed from the front obliquely upward as shown by the line of sight E shown in FIG. Since the light reflecting portion 15ca is visible from the display portion 15da when viewing 15da, the effect of improving the visibility of the display portion 15da by the light reflecting portion 15ca is great.

  In the present embodiment described above, the case where the light reflecting portion 15ca is disposed between the light guide portion 15ba and the display portion 15da has been described. However, metal plating or the like is applied to the vicinity of the display portion 15da in the light guide portion 15da. Therefore, a part of the light guide portion 15da may be used as a light reflecting portion. Further, by performing metal plating or the like on the entire light guide portion 15da, the light guide portion 15da may also serve as the light reflecting portion.

  In addition, in addition to the display apparatus 15 mentioned above, the air cleaner 1 of this embodiment is provided with the dust amount display part 17 shown in FIG. 1 thru | or FIG. 3, and FIG. As shown in FIG. 6, the dust amount display unit 17 includes a window portion 17a, a light transmitting portion 17b, and a plurality of LEDs 17c (one of these is shown in FIG. 6).

  The window portion 17a is formed in a slit shape by the end portion of the upper end portion 12a of the front panel 12 and the convex portion 15cf of the cover portion 15c. The light transmitting portion 17b is formed in a horizontally long plate shape with a synthetic resin material that transmits light, and is disposed so as to cover the window portion 17a from the inside of the main body portion 11. Several LED17c is arrange | positioned inside the main-body part 11 rather than the translucent part 17b, and each LED17 emits the light of a different color.

  Although not shown, the air cleaner 1 is provided with a dust sensor that detects the amount of dust in the room in which the air cleaner 1 is installed. Specifically, the dust sensor is disposed in the vicinity of at least one air suction port among the air suction ports 13 a to 13 d inside the main body 11.

  The dust amount display unit 17 performs display according to the detection value of the dust sensor described above. For example, a plurality of threshold values are provided for the detection value of the dust sensor, and when the detection value exceeds each threshold value, the LED 17c determined to emit light corresponding to each threshold value in advance is caused to emit light.

  The light emitted from the LED 17c travels directly from the window portion 17a to the outside of the main body portion 11 through the light transmitting portion 17b (light path L3 in FIG. 6), and forms the window portion 17a through the light transmitting portion 17b. There is one that reflects off the projecting portion 15cf and travels outside the main body 11 (optical path L4 in FIG. 6). The convex portion 15cf is provided with a taper so as to incline downward from the upper end portion of the convex portion 15cf. As described above, the cover portion 15c is covered with the metal plating film. The part 15cf also has a metal plating film.

  Therefore, the light traveling to the outside of the main body part 11 in the optical path L4 is hardly attenuated when reflected by the convex part 15cf, so that the light intensity of the convex part 15cf is also stronger than when no metal plating film is present. Become. Thereby, the visibility when the user views the dust amount display unit 17 with the line of sight E shown in the drawing is improved.

  In the embodiment described above, the metal plating film is applied to the entire surface of the cover portion 15c. However, the present invention is not limited to this, and the purpose of reflecting light and the purpose of improving the design are achieved. Any means other than metal plating, such as providing a metal-colored coating film on the entire surface of the cover portion 15c, may be used.

DESCRIPTION OF SYMBOLS 1 Air cleaner 10 Ventilation path 11 Main-body part 12 Front panel 13 Front panel 15 Display apparatus 15a Board | substrate part 15aa LED
15ab operation switch 15ac printed circuit board 15b operation unit 15ba light guide unit 15bb pressing unit 15bc convex unit 15be operation unit body 15c cover unit 15ca light reflection unit 15ca1 first light reflection unit 15ca2 second light reflection unit 15ca3 third light reflection unit 15ca4 second 4 light reflecting portion 15 cb operation button 15 cc arm 15 cd slit 15 ce cover portion main body 15 cf convex portion 15 d display panel 15 da display portion 15 db through hole 15 dc panel main body 17 indicator 17 a window portion 17 b light transmitting portion 17 c LED
22 Dust Collection Unit 23 Deodorization Unit 24 Humidification Unit 25 Blower

Claims (3)

A display device having a light emitting member, a light guide, and a display,
The light guide unit guides light emitted from the light emitting member to the display unit,
Between the light guide part and the display part, a light reflecting part for reflecting light emitted from the light emitting member is provided,
A display device characterized by that. A substrate portion on which the light emitting member and the operation switch are mounted;
A pressing portion for pressing the operation switch, a cover portion having a plurality of arms for holding the pressing portion,
Further comprising
A part of the arm is the light reflecting portion and is disposed between the light guide portion and the display portion.
The display device according to claim 1.   An air conditioner having the display device according to claim 1.

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