WO2022176229A1 - 電気掃除機 - Google Patents

電気掃除機 Download PDF

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Publication number
WO2022176229A1
WO2022176229A1 PCT/JP2021/028152 JP2021028152W WO2022176229A1 WO 2022176229 A1 WO2022176229 A1 WO 2022176229A1 JP 2021028152 W JP2021028152 W JP 2021028152W WO 2022176229 A1 WO2022176229 A1 WO 2022176229A1
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WO
WIPO (PCT)
Prior art keywords
light
vacuum cleaner
lens
lenses
irradiation
Prior art date
Application number
PCT/JP2021/028152
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
弘樹 工藤
敦史 倉田
将 矢野
優 神谷
叶登 佐藤
一秀 富崎
昂司 西田
貴弘 中居
Original Assignee
日立グローバルライフソリューションズ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2021025929A external-priority patent/JP7446252B2/ja
Priority claimed from JP2021035062A external-priority patent/JP7531428B2/ja
Application filed by 日立グローバルライフソリューションズ株式会社 filed Critical 日立グローバルライフソリューションズ株式会社
Priority to CN202180076365.0A priority Critical patent/CN116634911A/zh
Publication of WO2022176229A1 publication Critical patent/WO2022176229A1/ja

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/30—Arrangement of illuminating devices

Definitions

  • the present invention relates to vacuum cleaners.
  • Patent Document 1 when cleaning with an electric vacuum cleaner, the user visually checks the surface to be cleaned, such as the floor or shelf, and collects dust and other debris. At this time, if the visibility of the dust is low from the user's point of view, the cleaning may be left uncleaned, or the efficiency may be lowered by cleaning the place where there is no dust. Therefore, the technique described in Patent Document 1 is known as a technique for improving the visibility of dust on a surface to be cleaned.
  • a suction body having a suction port for sucking gas containing dust and a light-emitting diode arranged in the suction body are provided, and are arranged so as to be in contact with the suction body or substantially parallel to the floor surface.
  • the light-emitting diodes are arranged in the suction body so that the irradiation range of the light emitted from the light-emitting diodes and emitted to the outside of the suction body spreads downward from the direction extending substantially parallel to the floor surface.
  • a vacuum cleaner is listed.
  • An object of the present invention is to provide a vacuum cleaner that solves the above problems, improves the light irradiation range on the surface to be cleaned, and improves the recognition of dust.
  • the present invention provides a fan motor that generates a suction force, a suction body that sucks up dust sucked by the fan motor, and a dust collector that communicates with the suction body and collects the dust that has been sucked up.
  • the suction body includes an irradiation unit that irradiates a surface to be cleaned
  • the irradiation unit includes a plurality of light emitting units that simultaneously emit light of different colors
  • the plurality of The light emitting unit emits at least white light and green light
  • the irradiation unit mixes and irradiates the white light and the green light.
  • the present invention it is possible to provide a vacuum cleaner that can improve the light irradiation range on the surface to be cleaned and improve the recognition of dust.
  • FIG. 1 is an external perspective view of a vacuum cleaner according to Embodiment 1 of the present invention
  • FIG. It is a top view of the operation part with which the vacuum cleaner which concerns on Example 1 of this invention is equipped. It is the perspective view which looked at the mouthpiece body which concerns on Example 1 of this invention from upper direction. It is the perspective view which looked at the mouthpiece body which concerns on Example 1 of this invention from the downward direction.
  • FIG. 4 is a perspective view of the mouthpiece as seen from above with the upper case and the lens fixing member removed.
  • FIG. 6 is a perspective view of the mouthpiece shown in FIG. 5 with the lens fixing member attached.
  • FIG. 4 is an enlarged side view of the front portion of the suction body with the upper case and bumper removed; It is the perspective view which looked at the upper case from the back side. It is the hue circle of the Munsell color system explaining the hue of the light to irradiate.
  • 1 is a block diagram of a vacuum cleaner according to Embodiment 1 of the present invention; FIG. It is the front view which looked at the lens fixing member which concerns on Example 1 of this invention from the front. It is the back view which looked at the lens fixing member which concerns on Example 1 of this invention from back. It is the bottom view which looked at the lens fixing member which concerns on Example 1 of this invention from the downward direction. 13 is a cross-sectional view taken along line XIV-XIV of FIG. 12; FIG. FIG.
  • FIG. 5 is a front view of a lens fixing member according to Example 2 of the present invention
  • FIG. 8 is a rear perspective view of a lens fixing member according to Example 2 of the present invention
  • FIG. 11 is a front perspective view of a lens fixing member according to Example 3 of the present invention; It is the perspective view which looked at the lens fixing member which concerns on Example 3 of this invention from the back.
  • FIG. 19 is a cross-sectional view taken along line XIX-XIX of FIG. 18; It is the front view which looked at the lens fixing member which concerns on Example 4 of this invention from the front.
  • FIG. 5 is an explanatory diagram of an LED chip structure according to Example 5 of the present invention
  • FIG. 5 is an explanatory diagram of an LED chip structure according to Example 5 of the present invention;
  • constituent elements of the present invention do not necessarily have to be independent entities, and one constituent element may consist of a plurality of members, a plurality of constituent elements may consist of one member, a certain constituent element may part of a component, part of one component overlaps part of another component, and so on.
  • FIG. 1 is an external perspective view of a vacuum cleaner 100 according to Embodiment 1 of the present invention.
  • the electric vacuum cleaner 100 can be changed into various modes of use such as a handy state and a stick state, and can clean surfaces (not shown) such as floor surfaces and upper surfaces of shelves. In the following examples, it is assumed that the surface to be cleaned is, for example, flooring.
  • Vacuum cleaner 100 is not limited to the illustrated example, and may be a robot cleaner. Also, the vacuum cleaner 100 may be of a canister type, a paper pack type, or a cyclone type.
  • the support base 70 in which the vacuum cleaner 100 is housed is for storing the vacuum cleaner 100 in a stick state in which the extension tube 300 (accessory) and the standard suction body 200 (accessory) are connected. It is configured with a stand 72 . Inside the peripheral wall of the extension tube 300, two current supply systems 261, 261 (FIG. 10) are arranged to connect the control device 500 (FIG. 10) and the irradiation section 202 (FIG. 3).
  • the electric vacuum cleaner 100 can be used by connecting a small mouthpiece (accessory), a broom-shaped mouthpiece (accessory), an extension hose (accessory), or the like (not shown).
  • the suction body 200 is of a power brush type in which a rotating brush 201 (FIG. 4) is rotated by a brush motor 233 (FIG. 5).
  • the electric vacuum cleaner 100 includes a cleaner main body 1, a suction body 200, a dust case 2 (dust collection section), and a storage battery 3 that stores DC power.
  • the cleaner main body 1 includes a main body portion 10 , a motor case 11 and a handle 12 .
  • the main body 10 is connected to the suction body 200 through the extension pipe 300 , and dust on the floor surface is sucked up through the suction body 200 by the suction force generated by the fan motor (not shown) housed in the motor case 11 .
  • the sucked dust is collected in the dust case 2 communicating with the suction body 200 . Electric power used by the motor is supplied by the storage battery 3 .
  • a control device 500 (FIG.
  • the cleaner body 1 (specifically, the body portion 10).
  • the user can clean the floor surface by moving the suction body 200 in a desired direction while gripping the handle 12 .
  • the cleaner main body 1 is provided with an operation section 121 including buttons 124 and 125 (first operation section, FIG. 2) on the front side of the handle 12 (FIG. 1).
  • FIG. 2 is a top view of the operation unit 121 provided in the electric vacuum cleaner 100 according to Embodiment 1 of the present invention.
  • the operation unit 121 has a button 124 for changing the operation mode by changing the suction force through the suction port 203 (FIG. 4) by controlling the rotation speed of the fan motor housed in the motor case 11 (FIG. 1). , 125.
  • a button 124 drives the motor so as to obtain a predetermined suction force.
  • the button 125 drives the motor so that the suction force is stronger than the suction force when the button 124 is pressed.
  • pressing the buttons 124, 125 drives the motor so as to generate the corresponding suction force.
  • the rotating brush 201 rotates at the same rotational speed in any case.
  • pressing the buttons 124 and 125 within a predetermined time for example, within 5 seconds
  • a predetermined time or more for example, pressing and holding for 1 second or more
  • the operation unit 121 has a lamp 122 that blinks to notify that the remaining battery level of the storage battery 3 (FIG. 1) is low, and that a filter (not shown) housed in the dust case 2 is clogged by detecting a decrease in the suction power by blinking. and a lamp 123 for Furthermore, the operation unit 121 includes a button 126 for stopping the operation of the vacuum cleaner 100 by stopping the driving of both the motor housed in the motor case 11 (FIG. 1) and the rotating brush 201 (FIG. 4).
  • the suction body 200 (Fig. 3) has an irradiation unit 202 (Fig. 3) capable of irradiating light toward the surface to be cleaned. , the irradiation unit 202 emits light.
  • the buttons 124 and 125 are pressed and the motor and the rotating brush 201 are operating, the illuminating unit 202 emits light to illuminate the floor surface. The operability of the vacuum cleaner 100 can be improved.
  • FIG. 3 is a top perspective view of the mouthpiece according to Example 1 of the present invention
  • FIG. 4 is a bottom perspective view of the mouthpiece according to Example 1 of the present invention
  • 5 is a perspective view of the mouthpiece as viewed from above with the upper case and the lens fixing member removed
  • FIG. 6 is a perspective view of the mouthpiece shown in FIG. 5 with the lens fixing member attached.
  • FIG. 7 is an enlarged side view of the front portion of the mouthpiece with the upper case and bumper removed
  • FIG. 8 is a perspective view of the upper case as seen from the rear side.
  • the suction body 200 includes a lower case 241 having a suction port 203 opening toward the surface to be cleaned, an upper case 242 arranged above the lower case 241, and arranged behind the lower case 241 and the upper case 242.
  • a connection pipe 205 is provided.
  • An air passage 204 communicating with the suction port 203 is formed inside the connection pipe 205 .
  • a bumper 248 is provided between the lower case 241 and the upper case 242 to keep the lower case 241 and the upper case 242 airtight and to absorb the impact when the mouthpiece 200 collides with furniture or the like.
  • the suction port 203 of the lower case 241 is provided with a rotating brush 201 that is rotationally driven by a brush motor 233 .
  • a rotating brush 201 that is rotationally driven by a brush motor 233 .
  • wheels 206 and 207 for moving the suction body 200 in contact with the surface to be cleaned, and a floor surface for stopping the rotation of the rotating brush 201 when the suction body 200 leaves the surface to be cleaned.
  • a switch 234 is provided.
  • the irradiation unit 202 includes a plurality of LEDs 221 (LEDs 2211a, 2211b, 2212a, 2212b) as a light emitting unit, and a plurality of lenses 223 (lenses 2231a, 2231b, 2232a) arranged in front of the plurality of LEDs 221 and corresponding to the plurality of LEDs 221, respectively. , 2232b).
  • a plurality of lenses 223 (lenses 2231a, 2231b, 2232a, 2232b) are fixed to lens fixing member 220 .
  • This lens fixing member 220 constitutes a part of the irradiation section 202 .
  • a plurality of LEDs 221 (LEDs 2211 a, 2211 b, 2212 a, 2212 b) are mounted on the substrate 222 .
  • the substrate 222 is supported by the supporting portion 231 so that the planar portion of the substrate 222 stands upright.
  • the support portions 231 are formed in the lower case 241 so as to sandwich both longitudinal ends of the substrate 222 from the front and rear surfaces. 7, the support portion 231 is arranged so as to be inclined at a predetermined angle .theta.1 so that the upper portion is located in front of the suction body 200 with respect to the lower portion.
  • the substrate 222 attached to the support portion 231 is also arranged so as to be inclined at a predetermined angle ⁇ 1 so that the upper portion of the planar portion of the substrate 222 is located in front of the suction body 200 with respect to the lower portion. .
  • the planar portion of the substrate 222 is arranged vertically, the plurality of LEDs 221 can be directed forward. Further, the substrate 222 is arranged in the central portion of the mouthpiece 200 without reaching the full width in the left-right direction.
  • a plurality of recesses 243 are formed in the end face located above the substrate 222 .
  • the lens fixing member 220 is arranged so that the front planar portion stands upright in the vertical direction. Above the lens fixing member 220, a plurality of extensions 2201 extending toward the rear of the suction body 200 are formed. A plurality of protrusions 2202 extending toward the rear of the body 200 are formed. Shoulder portions 2203 are formed on both left and right sides of the convex portion 2202 . Below the lens fixing member 220, a projecting portion 2204 projecting downward is formed below the lens fixing member 220.
  • the protrusion 2204 of the lens fixing member 220 is first inserted into the groove 244 formed in the lower case 241 .
  • the lens fixing member 220 is supported by the lower case 241 .
  • the convex portion 2202 of the lens fixing member 220 is inserted into the concave portion 243 of the substrate 222 .
  • the upper case 242 is attached from above the lower case 241 .
  • the back surface of the upper case 242 has a groove 245 recessed upward, and a plurality of substrate restraints projecting downward from the top of the back surface of the upper case 242 behind the groove 245 .
  • a rib 246 and a plurality of lens fixing member restricting ribs 247 protruding downward from above the rear surface of the upper case 242 in front of the groove 245 are formed.
  • the convex portion 2202 of the lens fixing member 220 When the convex portion 2202 of the lens fixing member 220 is inserted into the concave portion 243 of the substrate 222, the lateral movement of the lens fixing member 220 is restricted. In addition, since the shoulders 2203 formed on both the left and right sides of the projection 2202 come into contact with the front planar portion of the substrate 222, the rearward movement of the lens fixing member 220 is restricted. Furthermore, when the upper case 242 is attached to the lower case 241, the upper end of the board 222 is inserted into the groove 245, and the plurality of board regulating ribs 246 are positioned behind the plane part of the board 222, thereby movement is restricted.
  • the lens fixing member 220 when the upper case 242 is attached to the lower case 241, the lens fixing member 220 is covered by the upper case 242, the upward movement of the lens fixing member 220 is restricted, and the lens fixing member 220 is positioned behind the plane portion of the lens fixing member 220.
  • a plurality of lens fixing member restricting ribs 247 are positioned to restrict rearward movement of the substrate 222 .
  • Embodiment 1 since the rear surface of the upper case 242 is provided with a plurality of lens fixing member restricting ribs 247, the impact force received by the lens fixing member 220 can be received by the lens fixing member restricting ribs 247. It is possible to suppress the impact force received by the lens fixing member 220 from being transmitted to the substrate 222 and damaging the substrate 222 .
  • the positions of the plurality of LEDs 221 (LEDs 2211a, 2211b, 2212a, 2212b) and the plurality of lenses 223 (lenses 2231a, 2231b, 2232a, 2232b) are fixed, and predetermined Since the distance is maintained, variations in the light from the LEDs 221 (LEDs 2211a, 2211b, 2212a, 2212b) entering the lens 223 can be suppressed, and the irradiation range on the surface to be cleaned can be stabilized. Further, even if the lens fixing member 220 receives an impact force, it can be received by the lens fixing member restricting ribs 247. 2231a, 2231b, 2232a, 2232b) can be suppressed.
  • the substrate 222 is arranged so as to be inclined at a predetermined angle ⁇ 1 so that the upper side thereof is located in front of the suction body 200 with respect to the lower side.
  • the center line L1 of the lens 2232b is inclined at a predetermined angle ⁇ 2 with respect to the horizontal line so that the front faces downward with respect to the rear as shown in FIG.
  • the light from the LED 2212b passing through the lens 2232b can be directed toward the surface to be cleaned.
  • the lenses 2231a, 2231b, and 2232a are similarly inclined so that the center lines of the lenses 2231a, 2231b, and 2232a face the surface to be cleaned.
  • Example 1 a plurality of LEDs 2211a, 2211b and LEDs 2212a, 2212b are provided and arranged alternately.
  • white LEDs are used for the LEDs 2211a and 2211b
  • green LEDs are used for the LEDs 2212a and 2212b. That is, the LEDs are arranged in the order of green, white, green, white, green, white, and green from left to right in the horizontal direction (width direction) of the mouthpiece 200 .
  • the LEDs arranged in the mouthpiece 200 are arranged in a combination of green, white, and green, with white in the center and green on both left and right sides.
  • Example 1 the green and white LEDs are turned on at the same time, and the floor surface is irradiated with light in a state in which the LEDs of the plurality of colors are mixed. The reason for selecting LEDs of multiple colors of green and white will be described.
  • FIG. 9 is a hue wheel of the Munsell color system (hereinafter referred to as Munsell color wheel as appropriate) for explaining the hue of the light to be irradiated.
  • the Munsell color wheel is an annular Munsell color chart having a center P0, and in the illustrated example, has 20 hues obtained by dividing the circumference into 20 equal parts. Symbols on the circle represent hues (synonymous with "color"), R for red, Y for yellow, G for green, B for blue, and P for purple.
  • the irradiation unit 202 irradiates light of an absorption color, which is a color easily absorbed by the surface to be cleaned, the light is absorbed by the surface to be cleaned. position can be easily confirmed. Therefore, for example, the irradiation unit 202 uses two hues adjacent to the hue corresponding to the color of the surface to be cleaned among the 20 hues in the Munsell color ring shown in FIG. A non-similar color light having a hue belonging to a region other than the region is irradiated. By irradiating light of non-similar colors, the surface to be cleaned can easily absorb the light, suppress reflection, and make the dust more conspicuous, thereby improving the visibility of the dust.
  • an absorption color which is a color easily absorbed by the surface to be cleaned
  • the irradiation unit 202 uses two hues adjacent to the hue corresponding to the color of the surface to be cleaned among the 20 hues in the Munsell color ring shown in FIG.
  • the hues adjacent to the hue C1 among the 20 hues are the hue 5YR and the hue 10YR. If the area between hue 5YR and hue 10YR including hue C1 is defined as having a similar color to hue C1 of the surface to be cleaned, the irradiation unit 202 emits a non-similar color which is a hue belonging to an area other than the similar color. Irradiate with light. When monochromatic light is irradiated, any one color can be selected from non-similar colors, and when multiple colors of light L are irradiated, arbitrary two or more colors can be selected.
  • Example 1 the irradiation unit 202 simultaneously lights green (5G) and white LEDs, and irradiates the floor surface with light in a state in which the LEDs of multiple colors are mixed.
  • the color is generally close to the color of wood between yellow (5Y) and purple (5P). For this reason, if light with a hue in a region other than the region between hue 5Y and hue 5P, specifically, for example, light with a hue between yellowish green (7.5GY) and blue (5B) is irradiated, , the color difference between the dust and the surface to be cleaned can be increased, and the dust can be easily conspicuous. Therefore, in Example 1, a green LED is provided as the irradiation unit 202 .
  • FIG. 10 is a block diagram of a vacuum cleaner according to Example 1 of the present invention.
  • Buttons 124 and 125 of the operation unit 121 and the storage battery 3 are connected to the controller 500 of the cleaner body 1 .
  • the control device 500 receives power supply from the storage battery 3 and supplies power to the suction body 200 through the two power supply systems 261 and 261 wired to the extension pipe 300. I do.
  • the suction member 200 receives power at the connection terminal 251 and supplies the power to the substrate 222 .
  • the LED 2212 emits green light by power supplied to the substrate 222 .
  • the LEDs 2211 a and 2211 b emit white light with the power adjusted by the input adjustment section 2215 .
  • the LEDs 2212a and 2212b emit green light in the state of maximum power received by the substrate 222, while the LEDs 2211a and 2211b emit white light in the state of reduced power from the maximum power. If the white LEDs 2211a and 2211b and the green LEDs 2212a and 2212b are simultaneously illuminated with the maximum power, color unevenness occurs and the visibility of dust is reduced. Therefore, in the first embodiment, the power supplied to the white LEDs 2211a and 2211b is adjusted by the input adjustment unit 2215 so as to suppress the color unevenness.
  • the input adjustment unit 2215 changes the resistance value to individually adjust the power supplied to the color LEDs 2211a and 2211b. . With such a configuration, in Example 1, light with suppressed color unevenness can be obtained.
  • FIG. 11 is a front view of the lens fixing member according to Example 1 of the present invention
  • FIG. 12 is a back view of the lens fixing member according to Example 1 of the present invention
  • 13 is a bottom view of the lens fixing member according to Example 1 of the present invention as viewed from below
  • FIG. 14 is a cross-sectional view taken along line XIV-XIV of FIG.
  • Example 1 white light is emitted from the lenses 2231a and 2231b, and green light is emitted from the lenses 2232a and 2232b.
  • the lenses 2231a, 2231b and the lenses 2232a, 2232b are formed in a conical shape so that the diameter increases from the light incident side (rear side) toward the light irradiation side (front side).
  • the lenses 2231a and 2231b and the lenses 2232a and 2232b have different lens diameters on the light irradiation side (front side).
  • the diameter D1 of the lenses 2231a and 2231b on the irradiation side (front side) is larger than the diameter D2 of the lenses 2232a and 2232b on the irradiation side (front side) (D1>D2). Further, the lenses 2231a and 2231b and the lenses 2232a and 2232b are recessed from the irradiation side (front side) toward the incident side (rear side).
  • Curvature radii 2231aR, 2231bR are formed larger than curvature radii 2232aR, 2232bR on the irradiation side (front side) of lenses 2232a, 2232b that irradiate green light (2231aR>2232aR, 2231bR>2232bR).
  • the lenses 2231a and 2231b that irradiate white light have a high degree of condensing.
  • the lenses 2232a and 2232b for irradiating green light have a smaller radius of curvature than the lenses 2231a and 2231b for irradiating white light, so the degree of light collection is low.
  • the lenses 2232a and 2232b that emit green light have a wider angle of view than the lenses 2231a and 2231b that emit white light.
  • lenses with different angles of view are used in combination, so that the green light absorbed by the surface to be cleaned is diffused and the white light is narrowed to brighten, thereby improving the visibility of dust.
  • the power supplied to the white LEDs 2211a and 2211b is adjusted by the input adjustment unit 2215, so that the green LEDs 2212a and 2212b are not excessively irradiated and color unevenness can be suppressed. can.
  • the white LEDs 2211a and 2211b and the green LEDs 2212a and 2212b are simultaneously turned on to illuminate the surface to be cleaned.
  • Light from 2212b can be easily absorbed by the flooring to suppress reflection, and the light from the white LEDs 2211a and 2211b can easily make dust stand out.
  • FIG. 15 is a front view of a lens fixing member according to Example 2 of the present invention
  • FIG. 16 is a rear perspective view of the lens fixing member according to Example 2 of the present invention.
  • the second embodiment differs from the first embodiment in the shape of the lenses arranged in the horizontal direction.
  • Example 1 all the lenses arranged in the lens fixing member 220 were formed in a conical shape, but in Example 2, the lens in the central part of the mouthpiece 200 was formed in a conical shape, and the lens formed in a conical shape was formed in the left-right direction. The lenses on both sides are formed in a laterally long shape extending in the lateral direction of the mouthpiece 200 .
  • Horizontally long lenses 2233 are formed on both sides in the left-right direction of the conically formed lenses 2231a and 2232a. At the rear (rear surface) of the oblong lens 2233, an incident concave portion 2233d extending in the horizontal direction is formed.
  • the white light and the green light incident from the oblong lens 2233 are combined to irradiate the entire width of the oblong lens 2233 from the front of the lens fixing member 220 and irradiate the vicinity of the suction member 200 .
  • the light emitted from the lens 2231 a and the lens 2232 a arranged in the central portion of the lens fixing member 220 illuminates a position farther away than the light emitted from the oblong lens 2233 .
  • the conical lenses 2231a and 2232a are arranged in the central portion of the lens fixing member 220, and the oblong lenses 2233 extending in the horizontal direction are arranged on both sides of the lens fixing member 220 in the horizontal direction. Therefore, the visibility of dust near the suction body 200 and dust far from the suction body 200 can be improved.
  • the horizontally long lenses 2233 extending in the left-right direction are arranged on both sides of the lens fixing member 220 in the left-right direction. It becomes easier to recognize the width of
  • FIG. 17 is a front perspective view of a lens fixing member according to Example 3 of the present invention
  • FIG. 18 is a rear perspective view of a lens fixing member according to Example 3 of the present invention
  • 19 is a cross-sectional view taken along line XIX-XIX of FIG. 18.
  • the third embodiment differs from the first embodiment in the shape of the lenses arranged on both sides of the lens fixing member 220 in the left-right direction.
  • the center lines of the curvature radii 2231aR and 2232aR on the irradiation side (front side) of the lens 2231a and the lens 2232a arranged in the central part of the suction body 200 face the front of the suction body 200.
  • the center line of the curvature radii 2231cR, 2232cR on the irradiation side (front side) of the lenses 2231c and 2232c arranged on both sides in the left-right direction of the lens (lens 2231a and lens 2232a) arranged in the central part of the suction body 200 is the center line of the suction body 200. with respect to the front of the mouthpiece 200 at predetermined angles .theta.3 and .theta.4. In Example 3, the angles ⁇ 3 and ⁇ 4 are 15 degrees.
  • White LED light is emitted from the lens 2231c, and green LED light is emitted from the lens 2232c.
  • the center lines of the radii of curvature 2231cR and 2232cR on the irradiation side (front side) of the lens 2231c and the lens 2232c are shifted in the horizontal direction of the suction body 200 by angles ⁇ 3 and ⁇ 4 respectively with respect to the front of the suction body 200.
  • the surface to be cleaned is illuminated by illuminating the white LED 2211b and the green LED 2212b at the same time. Therefore, it is possible to provide an electric vacuum cleaner that can suppress unsucked dust on both left and right ends of the suction body 200.
  • FIG. 20 is a front view of a lens fixing member according to Example 4 of the present invention, viewed from the front.
  • the fourth embodiment differs from the first embodiment in that the surface of the lens fixing member 220 is textured.
  • Example 20 at least the surface of the lens fixing member 220 on the irradiation side is embossed to form fine irregularities, and the surface of the lens fixing member 220 is in a cloudy state.
  • Example 4 as in Example 1, white LED light and green LED light are simultaneously emitted, and the power supplied to the white LED light is adjusted to suppress color unevenness.
  • white LED light and green LED light are incident on the lens fixing member 220 provided, the light is irregularly reflected by finely formed unevenness, and the white LED light and the green LED light are mixed.
  • Example 4 when texturing is applied to the surface of the lens fixing member 220, the texturing of the central portion 220a of the lens fixing member 220 is strengthened, and from the central portion 220a to the outer portion 220b positioned laterally outward of the suction body 200. As we go, we are trying to weaken the texturing.
  • the surface of the lens fixing member 220 is textured, it is possible to irradiate the surface to be cleaned with light with less color unevenness.
  • the entire surface of the lens fixing member 220 may be uniformly applied.
  • FIG. 21 is a layout diagram of LED chips in an LED 221 according to Example 5 of the present invention.
  • FIG. 22 is an arrangement diagram of LED chips used for comparison with Example 5 of the present invention.
  • two or more LED chips are installed in the center of the component when the required amount of light cannot be obtained with only one LED chip. Since there are many LEDs on the market that are built in side by side at a position away from the LED chip 1 (22101) and LED chip 2 (22102), it is assumed that the LED 221 in which two chips are built side by side is used.
  • the central black point of LED chip 1 (22101) and LED chip 2 (22102) is used as a light source, by arranging LED chip 1 (22101) and LED chip 2 (22102) so that LED chip 221 (22102) is parallel to the floor surface, Since the light sources of the LED chip 1 (22101) and the LED chip 2 (22102) have the same height from the floor surface, the irradiation ranges in the traveling direction overlap, and the floor surface can be uniformly irradiated. For comparison, if the LED chip 1 (22101) and the LED chip 2 (22102) in the LED 221 are arranged perpendicular to the floor surface as shown in FIG.
  • the irradiation range of the LED chip 1 (22101) and the LED chip 2 (22102) do not overlap with each other in the traveling direction, and a striped pattern is formed on the floor surface. It becomes difficult to achieve the effect of improving Therefore, in this embodiment, by arranging the LED chip 1 (22101) and the LED chip 2 (22102) so as to be parallel to the floor surface, the floor surface can be uniformly illuminated and the visibility of the dust can be improved. can.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
PCT/JP2021/028152 2021-02-22 2021-07-29 電気掃除機 WO2022176229A1 (ja)

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JP2021025929A JP7446252B2 (ja) 2021-02-22 2021-02-22 電気掃除機
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JP2021035062A JP7531428B2 (ja) 2021-03-05 2021-03-05 電気掃除機
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020101730A1 (en) * 2001-01-29 2002-08-01 Wessel-Werk Gmbh Suction head for a sucton cleaning device
US20060075597A1 (en) * 2002-12-18 2006-04-13 Overvaag Chad D Lighted wand assembly
US20070240275A1 (en) * 2006-04-13 2007-10-18 Electrolux Home Care Products Ltd. Lighting apparatus for a vacuum cleaner
JP2010005094A (ja) * 2008-06-26 2010-01-14 Mitsubishi Electric Corp 電気掃除機
US20130002167A1 (en) * 2011-06-28 2013-01-03 Van De Ven Antony P Variable correlated color temperature luminary constructs
JP2013220205A (ja) * 2012-04-17 2013-10-28 Panasonic Corp 電気掃除機用吸込具およびそれを用いた電気掃除機
JP2015195156A (ja) * 2013-06-04 2015-11-05 三菱化学株式会社 照明器具及び光学部材

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020101730A1 (en) * 2001-01-29 2002-08-01 Wessel-Werk Gmbh Suction head for a sucton cleaning device
US20060075597A1 (en) * 2002-12-18 2006-04-13 Overvaag Chad D Lighted wand assembly
US20070240275A1 (en) * 2006-04-13 2007-10-18 Electrolux Home Care Products Ltd. Lighting apparatus for a vacuum cleaner
JP2010005094A (ja) * 2008-06-26 2010-01-14 Mitsubishi Electric Corp 電気掃除機
US20130002167A1 (en) * 2011-06-28 2013-01-03 Van De Ven Antony P Variable correlated color temperature luminary constructs
JP2013220205A (ja) * 2012-04-17 2013-10-28 Panasonic Corp 電気掃除機用吸込具およびそれを用いた電気掃除機
JP2015195156A (ja) * 2013-06-04 2015-11-05 三菱化学株式会社 照明器具及び光学部材

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