JP6639110B2 - Electric equipment with drying function - Google Patents

Description

  The present invention relates to an electric device having a drying function in a tank, and more particularly to an electric device including a light irradiation unit that irradiates light into the tank.

  Conventionally, a dryer that irradiates light into a washing tub has been proposed. For example, JP-A-10-244099 (Patent Literature 1) and JP-A-2003-62383 (Patent Literature 2) disclose a technique of irradiating clothing to be dried with infrared rays in order to improve drying efficiency. I have. Japanese Utility Model Laid-Open No. 2-82290 (Patent Document 3) discloses a configuration in which a sun lamp (mercury lamp) is built in a dryer in order to irradiate the laundry with light like the sun. Japanese Utility Model Application Laid-Open No. 60-164397 (Patent Document 4) discloses a dryer incorporating an ultraviolet or infrared light emitter.

JP-A-10-244099 JP 2003-62383 A JP-A-2-82290 60-164397

  In the above prior art, the main purpose of irradiating the inside of the washing tub with light is to improve drying efficiency, improve operability, impart a sterilizing effect, and the like. Also, in recent years, some people hesitate to dry laundry by sun drying outdoors, mainly due to air pollution by PM2.5. Therefore, drying clothes using a washing / drying machine which is a washing machine with a drying function has become mainstream. However, there is a current situation in which it is difficult to give a user a sufficient satisfaction in the finish of drying.

  That is, since the inside of the washing / drying machine is dark and cannot be seen well, it is difficult for the user to obtain a real feeling that the clothes are being dried. In view of such a situation, the inventors have searched for points of user's satisfaction in the finish of drying. As a result, the user feels "soft", "comfortable", "warmth", "clean", "will dry well", "good finish", "comfortable like sun drying" We obtained the knowledge that the finish of laundry was judged by items such as. At the same time, the user has, in particular, "memory" such as the feeling of "sun-dried" or "excellent image" similar to "adoration", and "memory and good image of sun-dried" In comparison with the above, it is known that the above-mentioned prior art is significantly less satisfied. That is, the prior art has not taken sufficient measures corresponding to these points of user satisfaction, and accordingly, the prior art has had a low degree of user satisfaction with the finish of laundry drying.

  Therefore, an object in one aspect of the present disclosure is to provide an electric device that can provide a user with a satisfactory finish of drying.

  An electric device according to one embodiment has a control unit for controlling the electric device, an opening, a tank for storing an object through the opening, and a door for opening and closing the opening. And a drying unit for drying the inside of the tank, and a light irradiating unit having at least one light source for irradiating the inside of the tank with light, when drying the inside of the tank, the light irradiation unit is a light source Irradiates light having a color including yellow or orange.

  Preferably, the at least one light source comprises an isochromatic temperature line passing through the first point (0.519, 0.478) on the xy chromaticity diagram and an iso-deviation line for the blackbody radiation locus, and a second point ( 0.403, 0.376), and emits light of a color in an area surrounded by an isochromatic temperature line passing through the black body radiation locus and an isochromatic temperature line passing through the black body radiation locus.

  The control unit performs a light irradiation step of controlling the light irradiation unit so as to irradiate light, and in the light irradiation step, a part of light emitted from the light irradiation unit is irradiated into the tank, and Is radiated to the outside of the electric device through the door.

  Preferably, the control unit further performs a drying step of controlling the drying unit so as to dry the inside of the tank, and performs the light irradiation step when performing the drying step.

  Preferably, the door has scattering means for scattering the incident light, and the scattering means diffuses the light into the tank and outside the door.

  A washing / drying machine according to another embodiment includes the configuration of the electric device described above, and the control unit controls a light irradiation unit to irradiate light, and a light irradiation step of controlling an object in the tub. A washing step of controlling the washing and drying machine to be washed, a rinsing step of controlling the washing and drying machine to rinse the object in the tub, and a drying step of controlling the drying unit to dry the inside of the tub, The control unit performs the light irradiation step when performing at least one of the cleaning step, the rinsing step, and the drying step.

  According to the present disclosure, it is possible to provide a user with a satisfactory degree of finish of drying by the light emitted from the light irradiation unit.

FIG. 1 is a perspective view showing an appearance of a washing and drying machine 1 according to Embodiment 1. It is a longitudinal section showing typically the internal structure of washing and drying machine 1 concerning this embodiment. FIG. 3 is a diagram schematically illustrating a direction of light emitted from a light source of a light irradiation unit 9 according to the first embodiment. It is a figure which shows the control structure of the washing-drying machine 1 concerning Embodiment 1 typically. FIG. 3 is a block diagram illustrating functions of a CPU 23 according to the first embodiment. It is a figure which shows the detail of the vicinity of black body radiation locus V0 of the xy chromaticity diagram determined by the International Commission on Illumination. (A)-(E) is a figure which shows typically an example of the timing which the light irradiation part 9 concerning Embodiment 1 emits light during a drying process. (A)-(C) is a figure which shows typically an example of the timing which the light irradiation part 9 concerning Embodiment 2 emits light during a washing process. It is a figure showing the surface of light scattering means 10 (door main part) concerning Embodiment 6. It is the figure which expanded the xy chromaticity diagram of FIG. (A) and (B) are diagrams for explaining evaluation items. FIG. 9 is a diagram showing the result of a subjective evaluation by Experiment 1. FIG. 9 is a diagram showing the result of a subjective evaluation by Experiment 2.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same components are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

[Embodiment 1]
Hereinafter, the washing and drying machine 1 according to Embodiment 1 of the present invention will be described. The washing and drying machine 1 is an example of an “electric device”.

  FIG. 1 is a perspective view showing the appearance of the washing and drying machine 1 according to the first embodiment. As shown in FIG. 1, the washing and drying machine 1 has a substantially rectangular parallelepiped housing 1A. The washer / dryer 1 includes an opening and a door provided on the front surface of the housing 1A. The door includes a door body 10 and a front door 11 (described later). The door is attached to the housing 1A via a hinge mechanism to open and close the opening. The opening is provided for putting a washing or drying target into and out of a drum 3 of a washing tub 2 described later. In addition, an operation panel 12 and a charging section 45 for a detergent or the like are provided in an upper portion of the housing 1A. Operation panel 12 includes keys operated by a user to input instructions to washing / drying machine 1.

  FIG. 2 is a longitudinal sectional view schematically showing the internal structure of the washing and drying machine 1 according to the present embodiment. As shown in FIG. 2, the housing 1 </ b> A of the washing / drying machine 1 includes a washing tub 2 having a drum 3 inside. The drum 3 is held by the washing tub 2 via a rotating shaft (not shown) and connected to a washing tub drive motor 4. The drum 3 is an example of a “tank” for storing an object to be washed or dried (typically, clothing 55).

  In addition, the washing / drying machine 1 includes a heat pump unit 7, a heater unit 8, and an air passage 6 for allowing drying air to flow through the drum 3 to dry the inside of the tub. The heat pump unit 7 includes an evaporator, a condenser, and a compressor. The air passage 6 is an air passage provided to communicate the drum 3 with the heat pump unit 7 and the heater unit 8. The washer / dryer 1 includes a light irradiator 9 near the openings of the washing tub 2 and the drum 3. The door for opening and closing the opening of the washer / dryer 1 includes a door body 10 and a front door 11. The door main body 10 is an embodiment of a light scattering unit made of a transparent member such as glass, for example. The front door 11 is a surface portion of the door body 10 and is a surface opposite to the surface on the side of the washing tub 2 and is a surface exposed to the outside when the door is closed. .

  The heat pump unit 7, the heater unit 8, and the air passage 6 are an example of a “drying unit” for drying the inside of the drum 3. The light irradiation unit 9 is an example of a “light irradiation unit” having at least one light source for irradiating the inside of the drum 3 with light.

  The light source of the light irradiation unit 9 includes, for example, an LED (Light Emitting Diode) element. The LED element emits light toward the light scattering means (door body 10) so that the light reaches the inside of the drum 3.

  The light source of the light irradiation unit 9 is a light source capable of emitting light of one or more colors. For example, if the light source is an LED element, the light source is composed of any one or all of the bulb-colored LED element, the white LED element, the red LED element, and the blue LED element. The light emitted from the light source of the light irradiating unit 9 may be light obtained by simultaneously emitting a plurality of LED elements having different colors. Light of a color including yellow or orange is emitted by the light emission of the light source of the light irradiation unit 9. More specifically, the color of the light emitted from the light source in the light irradiation unit 9 is yellow, yellowish orange, orange, red orange, and orange pink.

  FIG. 3 is a diagram schematically illustrating a direction of light emitted from the light source of the light irradiation unit 9 according to the first embodiment. As shown in FIG. 3, the light from the light irradiation unit 9 is emitted in a vertically downward direction 91. The light emitted from the light source of the light irradiator 9 is scattered by the light scattering means 10 (door body), reflected toward the inside of the drum 3, and brightens the visual field inside the drum 3. The light emitted from the light source of the light irradiating section 9 is scattered by the light scattering means 10 (door body), is transmitted toward the front door 11, and diffuses the light to the outside.

  The light irradiating section 9 may be installed in a space (inside the door) between the light scattering means 10 (door body) and the front door 11. In this case, light from the light irradiation unit 9 is emitted toward the light scattering means 10 (door body), scattered by the light scattering means 10 (door body), reflected toward the inside of the drum 3, and 3. Brighten the field of view inside. The light emitted from the light source of the light irradiating section 9 is scattered by the light scattering means 10 (door body), is transmitted toward the front door 11, and diffuses the light to the outside.

  FIG. 4 is a diagram schematically illustrating a control structure of the washing and drying machine 1 according to the first embodiment. Referring to FIG. 4, washing and drying machine 1 includes a control circuit 5 for controlling washing and drying machine 1. Each part of the washing and drying machine 1 is connected to the control circuit 5. A microcomputer 22 is provided as a main component of the control circuit 5. The microcomputer 22 includes a CPU (Central Processing Unit) 23, a storage unit (RAM (Random Access Memory) 24, ROM (Read Only Memory) 25) for storing programs and data, a timer 26, an I / O (Input / Output). Output) port unit 27 and a system bus 28. Each part of the microcomputer 22 transmits and receives data via the system bus 28. The control circuit 5 further includes a power supply circuit 31 for supplying power to the microcomputer 22, an input key circuit 33 connected to the I / O port unit 27, a state detection circuit 34, a display device drive circuit 35, and light irradiation. A section drive circuit 36 and a load drive circuit 37 are provided. The I / O port unit 27 converts data from the CPU 23 into a signal and outputs the signal to each circuit. The I / O port unit 27 converts a signal from each circuit into data and outputs the data to the CPU 23.

  The input key circuit 33 is connected to the operation panel 12. The state detection circuit 34 is connected to a sensor unit 107 including various sensors for detecting the state of each unit of the washing and drying machine 1. The display device drive circuit 35 connects a display device (not shown). The display device displays various information such as the state of the washing and drying machine 1. The light irradiation unit driving circuit 36 connects the light irradiation unit 9. The light irradiation unit drive circuit 36 outputs a signal for causing the light source to emit light to the light irradiation unit 9. When the light source is, for example, an LED element, the light irradiation unit drive circuit 36 outputs a current signal for causing the LED element of the light irradiation unit 9 to emit light based on a control signal from the CPU 23.

  The load drive circuit 37 connects the washing tub drive motor 4, the drain motor 21, the washing water supply valve 38, the circulation pump 39, the drain valve 40, the blower 50, the fan motor 51, the heat pump unit 7, and the heater unit 8. The load drive circuit 37 controls these components based on a control signal from the CPU 23.

  FIG. 5 is a block diagram illustrating functions of CPU 23 according to the first embodiment. Referring to FIG. 5, CPU 23 includes a light irradiation process control unit 200, a washing process control unit 201, and a drying process control unit 204. The washing process control unit 201 includes a washing process control unit 220, a rinsing process control unit 221, and a dehydration process control unit 222. The functions of these units are realized by hardware and software (programs and data) executed by the CPU 23. Such software is stored in the RAM 24 and the ROM 25 in advance.

  The light irradiation step control unit 200 controls the light irradiation unit 9 via the light irradiation unit drive circuit 36 so as to execute the light irradiation step. The washing process control unit 201 controls the washing tub drive motor 4, the washing water supply valve 38, the drain valve 40, and the like so as to execute the washing process.

  Here, the washing and drying machine 1 includes, in the washing step, a washing step of washing the clothes 55 with a detergent, a rinsing step of a detergent attached to the clothes 55, and a dehydrating step of removing excess moisture from the clothes 55.

  The washing process control unit 201 includes a washing process control unit 220, a rinsing process control unit 221, and a dehydration process control unit 222. The washing step control unit 220 controls the washing tub drive motor 4, the washing water supply valve 38, the circulation pump 39, and the drain valve 40 so as to execute the washing step. The rinsing step control unit 221 controls the washing tub drive motor 4, the washing water supply valve 38, the circulation pump 39, and the drain valve 40 so as to control the rinsing step. The dehydration step control unit 222 controls the washing tub drive motor 4, the water supply valve 38 for washing, and the drain valve 40 so as to perform the dehydration step of washing.

  The drying step control unit 204 controls the washing tub drive motor 4, the washing water supply valve 38, the fan motor 51, the heat pump unit 7, and the heater unit 8 so as to execute the drying step in the drum 3.

  Next, the irradiation light from the light irradiation unit 9 in the above-described light irradiation step will be described. FIG. 6 is a diagram showing details in the vicinity of the black body radiation locus V0 of the xy chromaticity diagram determined by the International Commission on Illumination. In FIG. 6, a group of equal temperature lines and a group of equal deviation lines with respect to the black body radiation locus V0 are described in an overlapping manner. The light emitted from the light source of the light irradiation unit 9 has an isochromatic temperature line W1 passing through the point A (0.519, 0.478) and an isodeviation line V1 with respect to the black body radiation locus V0 on the xy chromaticity diagram. , The light in the region S surrounded by the isochromatic temperature line W2 passing through the point B (0.403, 0.376) and the isodeviation line V2 with respect to the black body radiation locus V0.

  Point A indicates a point where the correlated color temperature is 2450 K and the deviation uv = 0.0167 with respect to the black body radiation locus V0. Point B indicates a point where the correlated color temperature is 3410 K and the deviation uv = −0.0055 from the black body radiation locus V0. Note that the chromaticity coordinates of the intersection C between the isochromatic temperature line W1 and the isodeviation line V2 are (0.461, 0.389), and the chromaticity of the intersection D between the isochromatic temperature line W2 and the isodeviation line V1. The coordinates are (0.429, 0.449). Therefore, the area S is surrounded by points A, C, B, and D clockwise in the figure. The region S indicates yellow, yellowish orange, orange, red orange, and orange pink. The light source of the light irradiation unit 9 according to the first embodiment emits yellow, yellowish orange, orange, red orange, and orange pink light. The yellow-based or orange-based colors included in these colors are colors that image brightness, warmth, and light in color psychology, and have been known as colors that image the sun since ancient times. In addition, the light source of the light irradiation unit 9 may emit light having a wavelength of 570 nm to 620 nm in order to emit yellow or orange color.

  When the drying process is performed by the drying process control unit 204 of the washing and drying machine 1, the light irradiation process is performed by the light irradiation process control unit 200. FIG. 7 is a diagram schematically illustrating an example of a timing at which the light irradiation unit 9 according to Embodiment 1 emits light during the drying process. FIG. 7 shows patterns 1 to 5 as timings of light irradiation by the light irradiation process control unit 200.

  In pattern 1 of FIG. 7A, light is continuously applied during the drying process. Specifically, the light irradiation step control unit 200 controls the light irradiation unit 9 so as to emit light during the drying step of the washing and drying machine 1. More specifically, the light irradiation unit 9 starts emitting light simultaneously with the start of the operation of the heat pump unit 7 and / or the heater unit 8 (that is, at least one of the heat pump unit 7 and the heater unit 8). And / or continuously emit light until the operation of the heater section 8 is completed.

  In pattern 2 of FIG. 7B, light is applied only for a predetermined period of time at the beginning of the drying process. For example, the light irradiation process control unit 200 controls the light irradiation unit 9 so that light is continuously irradiated for a certain period of time after the operation of the heat pump unit 7 and / or the heater unit 8 starts. After the elapse of the certain time, the light irradiation process control unit 200 may control the light source of the light irradiation unit 9 to be turned off. Note that the light irradiation step control unit 200 may control the light irradiation unit 9 so that light is emitted intermittently during the fixed time of the pattern 2.

  In the pattern 3 of FIG. 7C, the light irradiation step control unit 200 controls the light irradiation unit 9 so that light is irradiated only for a predetermined period of time in the latter half of the drying step. Alternatively, the light irradiation step control unit 200 controls the light irradiation unit 9 so as to continuously emit light for the predetermined time before the operation of the heat pump unit 7 and / or the heater unit 8 ends.

  In the pattern 4 of FIG. 7D, the light irradiation process control unit 200 controls the light so that light is emitted in the first predetermined constant time at the beginning of the drying process and in the second predetermined time in the latter half of the drying process. The light irradiation unit 9 is controlled. Alternatively, the light irradiation step control unit 200 continuously irradiates light for the first predetermined time from the start of the operation of the heat pump unit 7 and / or the heater unit 8, and then turns off the light. May be controlled, and before the operation of the heat pump unit 7 and / or the heater unit 8 ends, the light irradiation unit 9 may be controlled again so as to continuously emit light for the second fixed time.

  Note that the lengths of the first fixed time and the second fixed time may be the same or different.

  In the pattern 5 of FIG. 7E, the light irradiation step control unit 200 controls the light irradiation unit 9 so that light is intermittently irradiated in the drying step. Referring to pattern 5, the timing at which light irradiation section 9 emits light may be, for example, linked with the operation of heat pump section 7 and / or heater section 8. Specifically, as shown in FIG. 7E, when the heat pump unit 7 operates continuously during the drying process and the heater unit 8 operates intermittently during the drying process, the light irradiation process control unit The control unit 200 may control the light irradiation unit 9 so that light is irradiated only when the heater unit 8 operates. Alternatively, although not shown, for example, when the heater unit 8 operates continuously during the drying process and the heat pump unit 7 operates intermittently during the drying process, the light irradiation process control unit 200 The light irradiation unit 9 may be controlled so that light is irradiated only when the device operates.

  When light is continuously emitted from the light irradiation unit 9 during the drying process (see pattern 1 in FIG. 7), the image of “sun-dried” can be given to the user at any time by the light. On the other hand, when the light is intermittently emitted from the light irradiation unit 9 (see patterns 2 to 5 in FIG. 7), the light irradiation is performed during a time when the user may stay near the washing and drying machine 1. Since light is emitted from the unit 9, energy saving and extension of the life of the light source can be realized.

  In particular, in the patterns 4 and 5 of FIG. 7, light is emitted from the light irradiation unit 9 at a time when the user may stay near the washing / drying machine 1, and the user approaches the washing / drying machine 1. Since the light is not emitted from the light irradiation unit 9 during the time when the possibility of staying is low, the life of the light source can be extended as compared with the patterns 2 and 4.

  The light emitted from the light irradiator 9 brightens the visual field in the drum 3 of the washing and drying machine 1 by the light scattering means 10 (door body), and is transmitted through the front door 11 and diffused to the outside. With this configuration, the user can check the state of the garment 55 irradiated with light in the drum 3. Further, by diffusing light to the outside of the washer / dryer 1, an image of "sun drying" can be given to the user.

[Embodiment 2]
In the second embodiment, a modified example of the first embodiment will be described. In the above-described first embodiment, the light irradiation step control unit 200 controls the light irradiation unit 9 so as to emit light in the drying step. However, in the second embodiment, the light irradiation step control unit 200 emits light in the washing step. The light irradiation unit 9 is controlled.

  FIG. 8 is a diagram schematically illustrating an example of a timing at which the light irradiation unit 9 according to Embodiment 2 emits light during a washing process. FIG. 8 shows patterns 6 to 8 as the timing of light irradiation.

  In the pattern 6 of FIG. 8A, the light irradiation unit 9 continuously emits light during the washing process. Specifically, the light irradiation step control unit 200 controls the light irradiation unit 9 to continuously emit light in the washing step (that is, in all of the washing step, the rinsing step, and the dehydrating step).

  In the pattern 7 of FIG. 8B, the light irradiation unit 9 emits light intermittently during the washing process. For example, the light irradiation step control unit 200 controls the light irradiation unit 9 to emit light during the washing step and the rinsing step of the washing step.

  Alternatively, the light irradiation step control unit 200 controls the light irradiation unit 9 to emit light at the time of the rinsing step and the dehydration step of the washing step, or at the time of the washing step and the dehydration step of the washing step. .

  Alternatively, the light irradiation step control unit 200 controls the light irradiation unit 9 so as to emit light at any one of the washing step, the rinsing step, and the dehydration step in the washing step.

  In the pattern 8 of FIG. 8C, in the cleaning process, the light irradiation unit 9 emits light intermittently. Here, for example, in the washing step and the rinsing step, the washing / drying machine 1 starts water supply to the drum 3, and after the water supply ends, the drum 3 performs a tumbling operation, and then performs drainage from the drum 3. I do. For example, in the cleaning step, as shown in FIG. 8C, the light irradiation step control section 200 controls the light irradiation section 9 so as to emit light simultaneously with the start of the tumbling operation, and turns off the light simultaneously with the start of drainage. The light irradiating unit 9 may be controlled in advance. The pattern in FIG. 8C can be similarly applied to the rinsing step.

  In the dehydration step, the light irradiation step control unit 200 emits light at the same time that the drum 3 starts rotating for dehydration, and the rotation for dehydration ends (or a washing tub drive for rotating the drum 3). The light irradiation unit 9 may be controlled so that the light is turned off at the same time when the operation of the motor 4 is completed).

  Further, for example, when the washing / drying machine 1 has a disinfection function, the light irradiation step control unit 200 controls the light irradiation unit 9 to emit light while the disinfection is being performed. Is also good. For example, a function of releasing ions (silver ions) for disinfection into the drum 3 can be used for disinfection. Further, an ion generator (not shown) for generating positive and negative ions may be provided in the air passage 6. A needle-shaped discharge electrode (not shown) is provided in the ion generator so as to be exposed in the air passage, and a discharge is performed by supplying an AC or impulse waveform voltage to the discharge electrode from a power supply unit (not shown). The electrodes generate ions.

When the voltage applied to the discharge electrode is a positive voltage, the ions combine with moisture in the air to generate positive ions mainly composed of H ⁺ (H ₂ O) _m . Voltage applied to the discharge electrodes for negative voltage mainly O ₂ bound ions with moisture in the air ^- generates negative ions consisting of (H ₂ O) _n. Here, m and n are arbitrary natural numbers. H ⁺ (H _{2 O) m} and _{^{O 2 - (H 2 O)}} n surrounds these aggregated on the surface of airborne bacteria and odor components in the air.

Then, as shown in (Formula A) to (Formula C), the collision causes the active species [.OH] (hydroxyl radical) and H ₂ O ₂ (hydrogen peroxide) to aggregate and form on the surface of a microorganism or the like. Destroys airborne bacteria and odorous components. Here, m ′ and n ′ are arbitrary natural numbers. Accordingly, by generating positive ions and negative ions, the drum 3 and the clothes can be sterilized and the odor can be removed.

^{_{H + (H 2 O) m}} + O 2 - (H 2 O) n → · OH + 1 / 2O 2 + (m + n) H 2 O ··· ( formula A)
^{_{H + (H 2 O) m}} + H + (H 2 O) m '+ O 2 - (H 2 O) n + O 2 - (H 2 O) n'
→ 2 · OH + O ₂ + (m + m ′ + n + n ′) H ₂ O (Formula B)
^{_{H + (H 2 O) m}} + H + (H 2 O) m '+ O 2 - (H 2 O) n + O 2 - (H 2 O) n'
→ H ₂ O ₂ + O ₂ + (m + m ′ + n + n ′) H ₂ O (formula C). In the present embodiment, positive ions and negative ions are generated by the ion generator, but only negative ions may be generated.

  According to the second embodiment, when the light irradiating unit 9 continuously emits light in the washing process, the image of “sun-dried” can be given to the user at any time during the washing process. it can. On the other hand, when the light irradiation unit 9 emits light intermittently, it is possible to realize energy saving and prolong the life of the light source.

  The emitted light brightens the field of view in the washing tub 2 (more specifically, in the drum 3) of the washing and drying machine 1 by the light scattering means 10 (door body), and transmits through the front door 11. And spread outside. With this configuration, the user can check the state of the clothes 55 irradiated with light in the washing tub 2 and the state of water irradiated with light. In addition, by irradiating the light from the light irradiator 9 to the inside of the washing tub 2 or the clothes 55 during the washing process, the user can imagine a "clean feeling" and increase the satisfaction with the "clean feeling". Can be.

[Embodiment 3]
In the third embodiment, a modification of each of the above-described embodiments will be described. In the third embodiment, the light irradiation section 9 emits light when the door is opened.

  The sensor unit 107 of the washer / dryer 1 has a sensor for detecting opening and closing of a door. The light irradiation process control unit 200 controls the light irradiation unit 9 to emit light when detecting the open state of the door based on the output from the sensor.

  According to this configuration, light is emitted from the light irradiation unit 9 when the door is opened and the user puts the clothes 55 into the drum 3 and when the user takes out the clothes 55 from the drum 3. Therefore, since the inside of the drum 3 becomes bright, the visibility of the user is improved, and the operability is improved. For example, it is possible to prevent forgetting to take off the clothes 55, which is an example of the drying target, and to prevent a small target (for example, buttons of the clothes 55, children's toys, etc.) in the drum 3 from being overlooked. Therefore, it is possible to prevent foreign substances from being mixed into the washing / drying machine 1 and to prevent the personal belongings of the user from being lost or damaged by washing.

[Embodiment 4]
Embodiment 4 shows a modification of each of the above-described embodiments. In the fourth embodiment, the sensor unit 107 of the washing / drying machine 1 has a sensor for detecting the presence of a person. The light irradiation step control unit 200 controls the light irradiation unit 9 so as to emit light when a person approaches the washing and drying machine 1 based on the output from the sensor.

  According to this configuration, the user can check the condition in the washing tub 2 irradiated with light in the washing tub 2 at any time during the washing process and the drying process, and realize energy saving and prolonging the life of the light source. Can be.

[Embodiment 5]
In the fifth embodiment, a modification of each of the above-described embodiments will be described. In the fifth embodiment, the door is integrally formed with the light scattering means 10 (door main body) and the front door 11. Specifically, the light scattering means 10 (door body) and the front door 11 move integrally as an assembled component. Thereby, the number of parts can be reduced.

  In addition, by arranging a door integrally having the light scattering means 10 (door body) facing the opening of the drum 3, light can be scattered most efficiently. The light scattering means 10 (door body) is formed from a transparent material such as glass. The light scattering means 10 (door body) scatters light from the light source of the light irradiating section 9 toward the inside of the drum 3 and toward the front door 11. The front door 11 is formed of a material that can transmit light (for example, transparent plastic or glass).

  The washing / drying machine 1 can irradiate the light emitted from the light irradiating section 9 over the entire inside of the drum 3 by including the light scattering means 10 (the door main body). The view inside can be brightened.

  In addition, since the light scattering means 10 (door body) and the front door 11 are formed of the above-described light-permeable material, the light emitted from the light irradiation unit 9 is diffused to the outside. be able to. According to such a configuration, the image of "sun drying" is used by brightening the field of view in the drum 3, improving the "cleanness" of the laundry, and diffusing light to the outside of the washing machine. Can be given to the user, so that the subjective satisfaction with the finish of the drying can be improved.

Embodiment 6
In the sixth embodiment, a modified example of each of the above embodiments will be described. In the sixth embodiment, the light scattering means 10 (door body) that scatters the incident light shows a configuration for more effectively scattering the light.

FIG. 9 is a diagram showing the surface of the light scattering means 10 (door body) according to Embodiment 6. FIG. 9 schematically shows the surface of the light scattering means 10 (door body) facing the inside of the drum 3 when the door of the washing and drying machine 1 is closed. A plurality of projections 101 are formed on the surface of the light scattering means 10 (door body). The plurality of protrusions 101 are arranged based on a specific function. For example, a Fibonacci sequence satisfying the equation (Equation 1) in an xy coordinate system when the surface of the light scattering means 10 (door body) is x in the horizontal direction when viewed from the paper surface and y is the vertical direction when viewed from the paper surface. Are provided in an array along the line. In Equation 1, i is the number of protrusions, r is the distance between the protrusions 101, and θ ₀ is the initial angle.

  By arranging the protrusions 101 in this manner, the light emitted from the light irradiation unit 9 is scattered in all directions on the surface of the light scattering means 10 (door body), so that the light diffusion efficiency can be improved. it can.

[Embodiment 7]
In the seventh embodiment, a modification of each of the above embodiments is shown. In the seventh embodiment, the washing / drying machine 1 has an ion generation unit that generates ions for sterilization as described above, and the CPU 23 controls the drum by the ion generation unit in addition to the process of FIG. 3 is provided with an ion irradiation step of irradiating the inside. In the seventh embodiment, the light irradiation step control section 200 controls the light irradiation section 9 so as to emit light during the ion irradiation step.

  Thus, when the clothing 55 in the drum 3 is irradiated with the ions, the clothing 55 is irradiated with the light from the light irradiation unit 9. According to this configuration, the user can recognize that ions are emitted by light irradiation, and can increase the subjective satisfaction with the cleanliness.

[Experiment]
In order to evaluate the light emitted from the light irradiating unit 9 in each embodiment, the inventors changed the illumination color (referred to as an example) and a comparative example for evaluating the example. A contrasting experiment was performed. This comparison experiment will be described below.

  FIG. 10 is an enlarged view of the xy chromaticity diagram of FIG. In FIG. 10, the light colors of Examples 1 to 9 below are indicated by points p1 to p9, and the light colors of Comparative Examples 1 to 9 are indicated by points q1 to q9.

(Example 1)
The light irradiation unit 9 according to the first embodiment emits light of a color at the point A (0.519, 0.478) (corresponding to p1 in FIG. 10) in the region S.

(Example 2)
The light irradiation unit 9 according to the second embodiment emits light of a color at a point (0.489, 0.431) (corresponding to p2 in FIG. 10) on the isochromatic temperature line W1 in the region S.

(Example 3)
The light irradiation unit 9 according to the third embodiment emits light of a color at the point C (0.461, 0.389) (corresponding to p3 in FIG. 10) in the area S.

(Example 4)
The light irradiation unit 9 according to the fourth embodiment emits light of a color at a point (0.431, 0.383) (corresponding to p4 in FIG. 10) on the equal deviation line V2 of the region S.

(Example 5)
The light irradiating unit 9 of the fifth embodiment emits light of a color at the point B (0.403, 0.376) (corresponding to p5 in FIG. 10) in the area S.

(Example 6)
The light irradiation unit 9 according to the sixth embodiment emits light of a color at a point (0.415, 0.413) (corresponding to p6 in FIG. 10) on the isochromatic temperature line W2 in the region S.

(Example 7)
The light irradiation unit 9 according to the seventh embodiment emits light of a color at the point D (0.429, 0.449) (corresponding to p7 in FIG. 10) in the region S.

(Example 8)
The light irradiation unit 9 according to the eighth embodiment emits light of a color at a point (0.465, 0.463) (corresponding to p8 in FIG. 10) on the equal deviation line V1 of the region S.

(Example 9)
The light irradiation unit 9 according to the ninth embodiment emits light of a color at a point E (0.458, 0.411) (corresponding to p9 in FIG. 7) inside the region S.

(Comparative Example 1)
In Comparative Example 1, which is compared with each embodiment, the light irradiating section 9 is closer to the black body radiation locus V0 than the equal deviation line V1 and has a lower correlated color temperature than the equal color temperature line W1 (0.528, 0.462) (equivalent to q1 in FIG. 10).

(Comparative Example 2)
In Comparative Example 2, the light irradiation unit 9 emits light of a color at a point (0.485, 0.400) (corresponding to q2 in FIG. 10) whose correlated color temperature is lower than the isochromatic temperature line W1.

(Comparative Example 3)
In Comparative Example 3, the light irradiation unit 9 is located farther from the black body radiation locus V0 than the equal deviation line V2 and has a lower correlated color temperature than the equal color temperature line W1 (0.475, 0.379) (FIG. 10). (Equivalent to q3) is emitted.

(Comparative Example 4)
In Comparative Example 4, the light irradiation unit 9 emits light of a color at a point (0.421, 0.370) (corresponding to q4 in FIG. 10) farther from the black body radiation locus V0 than the equal deviation line V2. .

(Comparative Example 5)
In Comparative Example 5, the light irradiation unit 9 emits light of a point (0.381, 0.383) (corresponding to q5 in FIG. 10) having a higher correlated color temperature than the isochromatic temperature line W2.

(Comparative Example 6)
In Comparative Example 6, the light irradiation unit 9 emits light of a color at a point (0.425, 0.464) (corresponding to q6 in FIG. 10) farther from the black body radiation locus V0 than the equal deviation line V1. .

(Comparative Example 7)
In Comparative Example 7, the light irradiation unit 9 emits light of a color at a point (0.484, 0.483) (corresponding to q7 in FIG. 10) farther from the black body radiation locus V0 than the equal deviation line V1. .

(Experiment 1)
In Experiment 1, subjectivity was measured with eight males and eight females as subjects, with and without lighting of the light irradiation unit 9. In addition, since the light irradiation by the light irradiation unit 9 is an evaluation performed during the drying process, in each case, the user touches the dried clothes 55 (in this case, a towel) taken out of the washing / drying machine 1 to obtain the light irradiation shown in FIG. (A) "Fluffiness", "comfort", "warmth", "cleanness", "good dryness (good dryness)", "finishness" indicated by the evaluation items 1 to 8 in the drying process Subject's subjective evaluation was performed for each evaluation content of "goodness (good finish)", "comfort like drying in the sun", and "easiness of taking out operation". In addition, for each of the evaluation contents of “easiness of input operation”, “comfort”, and “cleanliness” indicated by evaluation items 9 to 11 of the cleaning process in FIG. Subjective evaluation of the subjects was performed in the same manner as the evaluation method. In Experiment 1, the illumination light of (Example 9) was used when the light irradiation unit 9 was turned on.

  As an evaluation method, VAS (Visual Analogue Scale) used to evaluate the intensity of senses and emotions was used. This evaluation method attaches a mark on one straight line representing the worst sensation at one end and the best sensation at the other end to a point adapted to the strength of the sensation / emotion for the evaluation term felt by the subject at that time. By measuring the length from the position of the sign to one end, the subjective sensation is quantified and scored.

(Result of Experiment 1)
FIG. 12 is a diagram showing the result of the subjective evaluation in Experiment 1. FIG. 12 shows the results of the subjective evaluation of the subject in two cases, one in which the light of the (Example 9) is turned on by the light irradiation unit 9 and the other case. In FIG. 12, when the light is not turned on (no light is radiated to the outside through the door), when the light is turned on, the significance level is set to 5%, and when there is a significant difference in the improvement, “○” is shown. For the significance probability of less than 10%, "△" indicates that there is a tendency for improvement, and "X" indicates that there is no significant difference and no tendency for improvement.

  As a result, the evaluation items 1, 2, 4, 7, and 8 of the drying process include “softness”, “comfort”, “cleanliness”, “comfort like drying in the sun”, and “easy take-out operation”. "", The significance level was 5%. In Experiment 1, when the light irradiating section 9 was turned on and the evaluation was performed, the subjective feeling of the test subject for the evaluation items 1, 2, 4, 7, and 8 tended to be improved. In addition, there was a tendency that the subjective sensation was improved with respect to the evaluation contents of the evaluation items 3, 5, and 6 such as "warmth feeling", "good dryness", and "good finish".

  On the other hand, the significance level of 5% was evaluated with respect to the evaluation items of “easiness of throwing operation” and “cleanliness” of evaluation items 9 and 11 of the cleaning process. In Experiment 1, the subjective sensation tended to be improved when the light irradiation unit 9 was turned on. In addition, with respect to the evaluation content of “comfort” of the evaluation item 10, a tendency of improving the subjective sensation was observed.

(Experiment 2)
In the experiment 2, the evaluation items 1 to 8 in the drying process indicate "softness", "comfort", "warmth", when the respective illumination lights of the example and the comparative example are irradiated and when they are not. Subjective evaluations were made on the evaluation contents of "cleanliness", "dryness", "good finish", "comfort like drying in the sun", and "easiness of taking out operation". In addition, for the evaluation of the cleaning step, the evaluation contents of “ease of putting operation”, “comfort” and “cleanliness” indicated by evaluation items 9 to 11 were subjectively evaluated similarly to the evaluation method of the drying step. An evaluation was performed.

(Result of Experiment 2)
FIG. 13 is a diagram showing the result of the subjective evaluation by Experiment 2. FIG. 13 shows the results of the subjective evaluation when the light of Examples 1 to 9 and Comparative Examples 1 to 7 are turned on and when they are not. When the illumination light at the points p1 to p9 of the examples 1 to 9 in the range of the region S is turned on, compared with the case where the illumination light is not turned on, the significance level is 5% and the probability of significant establishment is less than 10%. There was a tendency for the subjective feeling to be improved in the evaluation contents.

  On the other hand, when the illumination light at points q1 to q7 of Comparative Examples 1 to 7 outside the region S was turned on, the significant difference in the subjective sensation was improved in most of the evaluation contents compared to the case where the illumination light was not turned on. And there was no tendency. Thus, FIG. 13 also shows the critical significance of the value of region S.

  From the above experimental results, it was shown that the subjective satisfaction with the finish of the laundry (clothes 55) is increased when the light is radiated to the outside during the drying process. More specifically, it has been shown that when the light color in the range of the region S is irradiated, the subjective satisfaction with the finish of the laundry (clothes 55) increases. In addition, it was shown that the satisfaction of “cleanliness” can be enhanced when light is applied to the outside in the washing process. More specifically, it has been shown that by irradiating the clothing 55 with light of a color in the range of the region S, the subjective satisfaction with the finish of the laundry (clothing 55) is increased. Further, when the door is opened when the clothes 55 are put in and taken out, the light irradiating section 9 is turned on to illuminate the inside of the drum 3 brightly. It was shown that satisfaction increased.

  In addition, in each embodiment, the laundry such as the clothes 55 is described as an example of the drying target, but beddings such as a futon may be used. Although the drum type washer-dryer 1 has been described as an example of a device having a drying function, a vertical type washer-dryer may be used, and a dryer (a large-sized dryer used in a home dryer or a coin laundry, a futon). Dryer).

  In addition, the position of the light source of the light irradiation unit 9 is not fixed, and the light emission direction may be manually changed. In this case, a motor may be provided in association with the light irradiation unit 9, and the CPU 23 may control the motor so that the light irradiation direction changes in conjunction with the rotation of the motor.

[Effects of Embodiment]
The washing / drying machine 1 has a door for taking in and out laundry (clothes 55), a washing step, a drying step, and a light irradiation step. In the light irradiation step, the at least one light source emits light, and the isochromatic temperature line passing through the point A (0.519, 0.478) on the xy chromaticity diagram determined by the International Commission on Illumination and the equal deviation with respect to the blackbody radiation locus. The light of the color in the area surrounded by the line, the isochromatic temperature line passing through the point B (0.403, 0.376) and the isodeviation line with respect to the blackbody radiation locus is emitted, and a part of the light is emitted. To the clothes 55, and the other part to the outside of the washing and drying machine 1. According to this configuration, the “feeling of the laundry”, “comfort”, “warmth”, “cleanliness”, “would dry well”, “good finish”, and “feel like sun drying” With regard to “sa” and the like, the user's satisfaction with the finished drying of the laundry and the subjective satisfaction obtained from the appearance of the laundry are improved.

  Further, according to the configuration in which the light irradiation step is performed when the drying step is performed, it is possible to brightly illuminate the visual field in the drum 3 of the user, and to increase the subjective satisfaction with the finish of the laundry. Can be.

  Further, according to the configuration in which the light irradiation step is performed when the washing step is performed, the user's satisfaction with the “cleanliness” can be enhanced by brightening the visual field in the drum 3 during the washing. it can.

  According to the configuration in which the above-described light irradiation step is performed when the door is opened, the visibility in the drum 3 can be brightened, and the user's subjective satisfaction with the finish of the laundry can be increased. .

  According to the configuration in which light is diffused into the washing / drying machine 1 (more specifically, inside the drum 3) by the light scattering means 10 (door body), the user can use the inside of the drum 3 via the door body. Can be checked from outside. Therefore, subjective satisfaction with the finish of drying the clothes 55 can be improved.

  The light irradiated by the light irradiation unit 9 is diffused outside the washing and drying machine 1 by the light scattering means. Therefore, the image of “sun-dried” can be given to the user from the appearance of the washer / dryer 1, so that the subjective satisfaction with the finish of the drying can be improved.

  The light scattering means 10 employs a configuration having a Fibonacci pattern. According to this configuration, the light diffusion efficiency can be increased by scattering the light.

  Further, according to the configuration in which the light scattering means is provided on the door, the number of components of the device is reduced, so that the structure can be simplified.

  Further, the washer-dryer 1 further has an ion irradiation step of irradiating the clothes 55 with ions, and the light irradiation step is performed when the ion irradiation step is performed (more preferably, it is performed in parallel. According to the configuration, the user can visually recognize that the ions are being emitted. Therefore, the user's subjective satisfaction with the cleanliness can be enhanced.

  The embodiment disclosed this time is an exemplification and is not limited to the above contents. The scope of the present invention is defined by the terms of the claims, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  DESCRIPTION OF SYMBOLS 1 Washing and drying machine, 1A housing, 2 washing tubs, 3 drums, 4 washing tub drive motors, 5 control circuits, 6 air paths, 7 heat pumps, 8 heaters, 9 light irradiation units, 10 door bodies, light scattering means , 11 front door, 12 operation panel, 21 drain motor, 22 microcomputer, 26 timer, 55 clothing, 200 light irradiation process control unit, 201 washing process control unit, 204 drying process control unit, 220 washing process control unit, 221 rinse Process control unit, 222 Dehydration process control unit.

Claims (5)

Electrical equipment,
A control unit for controlling the electric device,
A tank having an opening, and a tank for storing an object through the opening,
A door for opening and closing the opening,
A drying unit for drying the inside of the tank;
A light irradiator having at least one light source for irradiating light into the tank,
When drying the inside of the tank, the light irradiation unit irradiates light of a color in an area having a correlated color temperature of 2450 K or more and 3410 K or less by emission of the light source,
The door has scattering means for scattering incident light,
The electric device, wherein the scattering unit diffuses light inside the tank and outside the door. The control unit includes:
A drying step of controlling the drying unit so as to dry the inside of the tank,
The electric device according to claim 1, wherein when performing the drying step, a light irradiation step of controlling the light irradiation unit to irradiate the light is performed.   The electric device according to claim 2, wherein the control unit controls the light irradiating unit to irradiate light for a predetermined period of time in a latter half of the drying process.   4. The electric device according to claim 3, wherein the control unit controls the light irradiating unit to irradiate light for a predetermined period of time from the start of the drying process. 5. A washing and drying machine,
The washing and drying machine has the configuration of the electric device according to any one of claims 1 to 4,
The control unit includes:
A light irradiation step of controlling the light irradiation unit to irradiate the light,
A washing step of controlling the washing and drying machine so that the object in the tub is washed;
A rinsing step of controlling the washer / dryer to rinse the object in the tub;
Performing a drying step of controlling the drying unit so that the inside of the tank is dried,
The control unit further includes:
Wherein the light irradiation step when performing a cleaning process to implement, or to implement the light irradiation step when performing the rinsing process, the washing and drying machine.

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