Electric vacuum cleaner

Abstract

The present invention aims to provide an electric cleaner capable of improving the recognition of garbage. The electric cleaner of the present invention includes a fan motor for generating suction force, a suction body (200) for sucking up garbage sucked by the fan motor, and a dust collecting box (2) communicating with the suction body (200) for collecting dust of the sucked garbage. The suction body (200) has an irradiation portion (202) for irradiating a surface to be cleaned. The irradiation portion (202) includes a plurality of LEDs (221) capable of emitting light at the same time and a plurality of lenses (223) into which the light of the LEDs (221) is incident and irradiates the surface to be cleaned from the front of the suction body (200).

Description

Technical Field

[0001] This invention relates to electric vacuum cleaners. Background Technology

[0002] For example, when using an electric vacuum cleaner, the user visually identifies the surfaces to be vacuumed, such as floors and shelves, and collects dust and other debris. However, if the visibility of the debris is low from the user's perspective, cleaning residue may remain, or cleaning efficiency may decrease due to areas without debris. Therefore, the technology described in Patent Document 1 is known as a technique related to improving the visibility of debris on surfaces to be cleaned.

[0003] Patent Document 1 describes an electric vacuum cleaner comprising a suction body having a suction port for drawing in gas containing dust and a light-emitting diode disposed on the suction body. The light-emitting diode is disposed on the suction body such that when it is in contact with the suction body or disposed approximately parallel to the ground, the illumination range of light emitted from the light-emitting diode and illuminating the outside of the suction body extends downward from a direction extending approximately parallel to the ground.

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: International Publication No. 2008 / 035478 Summary of the Invention

[0007] The problem that the invention aims to solve

[0008] The technology described in Patent Document 1 does not take into account the illumination range of the light-emitting diode on the ground. Therefore, there is a problem that the illuminated light cannot fully cover the cleaned surface, resulting in the omission of trash.

[0009] The purpose of this invention is to solve the above-mentioned problems and provide an electric vacuum cleaner that can increase the illumination range of the light on the cleaned surface and improve the identification of garbage.

[0010] Technical solutions for solving the problem

[0011] To achieve the above objectives, the present invention provides an electric vacuum cleaner, comprising: a fan motor for generating suction; a suction body for sucking up debris attracted by the fan motor; and a dust collection section communicating with the suction body for collecting the sucked-up debris. The electric vacuum cleaner is characterized in that: the suction body has an illumination section for illuminating the surface being cleaned, the illumination section having multiple light-emitting sections capable of simultaneously emitting light of different colors, the multiple light-emitting sections emitting at least white and green light, and the illumination section mixing the white light and the green light for illumination.

[0012] Invention Effects

[0013] According to the present invention, an electric vacuum cleaner can be provided that can increase the illumination range of light relative to the cleaned surface and improve the identification of garbage. Attached Figure Description

[0014] Figure 1 This is a perspective view of the electric vacuum cleaner according to Embodiment 1 of the present invention.

[0015] Figure 2 This is a top view of the operating section included in the electric vacuum cleaner of Embodiment 1 of the present invention.

[0016] Figure 3 This is a perspective view of the suction nozzle of Embodiment 1 of the present invention viewed from above.

[0017] Figure 4 This is a perspective view of the suction nozzle of Embodiment 1 of the present invention viewed from below.

[0018] Figure 5 This is a three-dimensional view of the suction port from above, with the top shell and lens fixing components removed.

[0019] Figure 6 It means in Figure 5 A perspective view of the suction nozzle with the lens fixing component installed.

[0020] Figure 7 This is an enlarged side view of the front of the suction port with the top shell and buffer removed.

[0021] Figure 8 This is a three-dimensional view of the upper shell from the back side.

[0022] Figure 9 It is the color wheel of the Munsell color system, which describes the hue of the irradiated light.

[0023] Figure 10 This is a block diagram of the electric vacuum cleaner according to Embodiment 1 of the present invention.

[0024] Figure 11 This is a front view of the lens fixing component of Embodiment 1 of the present invention, viewed from the front.

[0025] Figure 12 This is a rear view of the lens fixing component of Embodiment 1 of the present invention, viewed from the rear.

[0026] Figure 13 This is a bottom view of the lens fixing component of Embodiment 1 of the present invention.

[0027] Figure 14 yes Figure 12 Cross-sectional view of line XIV-XIV.

[0028] Figure 15 This is a front view of the lens fixing component of Embodiment 2 of the present invention.

[0029] Figure 16 This is a perspective view of the lens fixing component of Embodiment 2 of the present invention, viewed from the rear.

[0030] Figure 17 This is a perspective view of the lens fixing component of Embodiment 3 of the present invention, viewed from the front.

[0031] Figure 18 This is a perspective view of the lens fixing component of Embodiment 3 of the present invention, viewed from the rear.

[0032] Figure 19 yes Figure 18 Cross-sectional view of the XIX-XIX line.

[0033] Figure 20 This is a front view of the lens fixing component of Embodiment 4 of the present invention, viewed from the front.

[0034] Figure 21 This is an explanatory diagram of the LED chip structure of Embodiment 5 of the present invention.

[0035] Figure 22 This is an explanatory diagram of the LED chip structure of Embodiment 5 of the present invention. Detailed Implementation

[0036] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The same reference numerals are used to denote the same constituent elements, and the same descriptions will not be repeated.

[0037] The various constituent elements of this invention do not necessarily need to exist independently. It is permissible for a constituent element to be composed of multiple components, multiple constituent elements to be composed of one component, a constituent element to be part of other constituent elements, or a part of a constituent element to be repeated with a part of other constituent elements.

[0038] Example 1

[0039] Figure 1 This is a perspective view of the electric vacuum cleaner 100 according to Embodiment 1 of the present invention. The electric vacuum cleaner 100 can be switched between various usage modes such as handheld mode and stick mode to clean surfaces to be cleaned, such as floors and the upper surfaces of shelves (not shown). In the following examples, the surface to be cleaned is, for example, a floor. The electric vacuum cleaner 100 is not limited to the example shown and may also be a robotic vacuum cleaner. In addition, the electric vacuum cleaner 100 may also be a canister type, a paper bag type, or a cyclone type.

[0040] The support platform 70 for storing the electric vacuum cleaner 100 is configured to house the extension tube 300 (accessory) and the standard suction nozzle 200 (accessory) in a rod-like state connected to the electric vacuum cleaner 100, and includes a base 71 and a bracket 72. A connection control device 500 is disposed inside the peripheral wall of the extension tube 300. Figure 10 ) and irradiation unit 202 ( Figure 3 The two power supply systems 261 and 261 () Figure 10 The electric vacuum cleaner 100 can be connected to and used with small suction ports (accessories) not shown, sweeping suction ports (accessories), extension hoses (accessories), etc. The suction port body 200 is powered by a brushed motor 233. Figure 5 Make the roller brush 201 ( Figure 4 Rotating power brush type.

[0041] The electric vacuum cleaner 100 includes a vacuum cleaner body 1, a suction port 200, a dust collection box 2 (dust collection section), and a battery 3 for storing DC power. The vacuum cleaner body 1 includes a main body 10, a motor housing 11, and a handle 12. The main body 10 is connected to the suction port 200 via an extension tube 300. The suction generated by a fan motor (not shown) housed in the motor housing 11 draws up debris from the ground through the suction port 200. The sucked-up debris is collected in the dust collection box 2, which communicates with the suction port 200. The power used by the motor is provided by the battery 3. Furthermore, a control device 500 (described later)... Figure 10 The handle 12 is located on the vacuum cleaner body 1 (specifically, the main body 10). The user holds the handle 12 and moves the suction nozzle 200 in the desired direction, thereby cleaning the floor. The vacuum cleaner body 1 has the handle 12 (… Figure 1 The front side of the device is equipped with buttons 124 and 125 (first operating part). Figure 2 Operation section 121.

[0042] Figure 2 This is a top view of the operation unit 121 included in the electric vacuum cleaner 100 according to Embodiment 1 of the present invention. The operation unit 121 includes buttons 124 and 125, which are controlled by buttons housed in the motor housing 11. Figure 1 The rotational speed of the fan motor causes the air to pass through the suction port 203 ( Figure 4 The operating mode changes depending on the attraction force. Button 124 drives the motor in a manner that creates a predetermined attraction force. Button 125 drives the motor to create a stronger attraction force than when button 124 is pressed.

[0043] In the motor housing 11 ( Figure 1 ) motor and roller brush 201 ( Figure 4When both are stopped, pressing buttons 124 and 125 activates the motors to generate corresponding suction forces. The roller brush 201 rotates at the same speed under all conditions. Furthermore, the electric vacuum cleaner 100 is configured such that pressing buttons 124 and 125 for a specified time (e.g., more than 5 seconds) for a specified duration (e.g., holding for more than 1 second) increases their driving force for a specified duration.

[0044] Operation unit 121 includes: reporting the status of battery 3 by flashing. Figure 1 The battery level indicator 122 indicates a decrease in battery charge; and the filter (not shown) housed in the dust collection box 2 flashes to indicate blockage upon detecting a decrease in attractive force. Furthermore, the operation unit 121 includes a light housed in the motor housing 11 (…). Figure 1 ) motor and roller brush 201 ( Figure 4 Button 126 stops the operation of the electric vacuum cleaner 100 by stopping the drive of both.

[0045] Details will be described later; the suction cup body is 200 ( Figure 3 ) Includes an irradiation unit 202 capable of irradiating light onto the surface being cleaned. Figure 3 By pressing buttons 124 and 125 corresponding to the current operating mode, the illumination section 202 illuminates. When buttons 124 and 125 are pressed and the motor and roller brush 201 are activated, the illumination section 202 illuminates the ground, making it easy to identify debris on the ground and improving the operability of the electric vacuum cleaner 100.

[0046] Next, the structure of the suction port 200 will be explained. Figure 3 This is a perspective view of the suction nozzle of Embodiment 1 of the present invention, viewed from above. Figure 4 This is a perspective view of the suction nozzle of Embodiment 1 of the present invention viewed from below. Figure 5 This is a three-dimensional view of the suction port from above, with the top shell and lens fixing components removed. Figure 6 It means in Figure 5 A perspective view of the suction nozzle with the lens fixing component installed. Figure 7 This is an enlarged side view of the front of the suction port with the top shell and buffer removed. Figure 8 This is a three-dimensional view of the upper shell from the back side.

[0047] The suction body 200 includes: a lower shell 241 having a suction port 203 opening to the surface being cleaned; an upper shell 242 disposed above the lower shell 241; and a connecting pipe 205 disposed behind the lower shell 241 and the upper shell 242. An air passage 204 communicating with the suction port 203 is formed inside the connecting pipe 205. A buffer 248 is provided between the lower shell 241 and the upper shell 242, which maintains the airtightness of the lower shell 241 and the upper shell 242 and absorbs the impact when the suction body 200 collides with furniture or the like.

[0048] The suction inlet 203 of the lower housing 241 includes a roller brush 201 that is driven to rotate by a brushed motor 233. Below the lower housing 241 are: wheels 206 and 207 that contact the surface being cleaned and are used to move the suction body 200; and a floor switch 234 for stopping the rotation of the roller brush 201 when the suction body 200 leaves the surface being cleaned.

[0049] The inlet body 200 includes an illumination section 202 configured to emit light towards the front. The illumination section 202 comprises a plurality of LEDs 221 (LEDs 2211a, 2211b, 2212a, 2212b) serving as light-emitting parts, and a plurality of lenses 223 (lenses 2231a, 2231b, 2232a, 2232b) disposed in front of and corresponding to each of the LEDs 221. The lenses 223 (lenses 2231a, 2231b, 2232a, 2232b) are fixed to a lens fixing member 220. This lens fixing member 220 forms part of the illumination section 202.

[0050] Multiple LEDs 221 (LEDs 2211a, 2211b, 2212a, 2212b) are mounted on a substrate 222. The substrate 222 is supported by a support portion 231, with its planar portion vertically aligned. The support portion 231 is formed on a lower housing 241 such that it clamps both ends of the substrate 222 along its length from the front and back sides. Additionally, as... Figure 7 As shown, the support portion 231 is arranged at a predetermined angle θ1, with its upper part positioned relative to its lower part in front of the suction port 200. Similarly, the substrate 222 mounted on the support portion 231 is also arranged at a predetermined angle θ1, with its upper part positioned relative to its lower part in front of the suction port 200.

[0051] In Embodiment 1, since the planar portion of the substrate 222 is vertically erected in the vertical direction, multiple LEDs 221 can face forward. Furthermore, the substrate 222 does not extend to the entire width of the suction port 200 in the horizontal direction, but is positioned at the center.

[0052] A plurality of recesses 243 are formed on the end face above the substrate 222.

[0053] The lens fixing member 220 is arranged vertically, i.e., in the up-down direction, with its front flat portion upright. Multiple extension portions 2201 extending towards the rear of the suction port 200 are formed above the lens fixing member 220. Furthermore, multiple protrusions 2202 extending from the center of each extension portion 2201 towards the rear of the suction port 200 are formed on each of these extension portions 2201. Shoulders 2203 are formed on the left and right sides of each protrusion 2202. A downwardly protruding protrusion 2204 is formed below the lens fixing member 220.

[0054] When fixing the lens fixing member 220 to the lower shell 241 of the suction port body 200, firstly, the protrusion 2204 of the lens fixing member 220 is inserted into the groove 244 formed in the lower shell 241. Thus, the lens fixing member 220 is supported by the lower shell 241. Next, the protrusion 2202 of the lens fixing member 220 is inserted into the recess 243 of the substrate 222. Then, the upper shell 242 is installed from above the lower shell 241. Figure 8 As shown, the back of the upper shell 242 has: an upwardly recessed groove 245; a plurality of substrate limiting ribs 246 protruding downward from the upper back of the upper shell 242 behind the groove 245; and a plurality of lens fixing member limiting ribs 247 protruding downward from the upper back of the upper shell 242 in front of the groove 245.

[0055] When the protrusion 2202 of the lens fixing member 220 is inserted into the recess 243 of the substrate 222, the left-right movement of the lens fixing member 220 is restricted. Furthermore, since the shoulders 2203 formed on the left and right sides of the protrusion 2202 contact the front planar portion of the substrate 222, the rearward movement of the lens fixing member 220 is restricted. Also, when the upper shell 242 is mounted on the lower shell 241, the upper end of the substrate 222 is inserted into the slot 245, and multiple substrate limiting ribs 246 are located behind the planar portion of the substrate 222, thus restricting the rearward movement of the substrate 222. Additionally, when the upper shell 242 is mounted on the lower shell 241, the lens fixing member 220 is covered by the upper shell 242, restricting the upward movement of the lens fixing member 220, and multiple lens fixing ribs 247 are located behind the planar portion of the lens fixing member 220, thus restricting the rearward movement of the substrate 222. If the suction nozzle 200 is moved to clean the surface being cleaned, the lens fixing member 220 may collide with furniture or the like, and the impact force will be transmitted to the substrate 222 via the extended part 2201 and the shoulder part 2203, potentially damaging the substrate 222. However, in Embodiment 1, since multiple lens fixing member limiting ribs 247 are included on the back of the upper shell 242, the lens fixing member limiting ribs 247 can be used to withstand the impact force borne by the lens fixing member 220, thus preventing the impact force borne by the lens fixing member 220 from being transmitted to the substrate 222 and causing damage to the substrate 222.

[0056] As described above, according to the structure of Embodiment 1, 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 a predetermined distance is maintained. Therefore, deviation of the light incident on the lens 223 from the LEDs 221 (LEDs 2211a, 2211b, 2212a, 2212b) can be suppressed, and the irradiation range on the surface to be cleaned can be stabilized. In addition, even if the lens fixing member 220 is subjected to an impact force, the limiting rib 247 of the lens fixing member can withstand it, so the distance change between the plurality of LEDs 221 (LEDs 2211a, 2211b, 2212a, 2212b) and the plurality of lenses 223 (lenses 2231a, 2231b, 2232a, 2232b) can be suppressed.

[0057] In Embodiment 1, as described above, the substrate 222 is positioned at a predetermined angle θ1, with its upper surface relative to its lower surface in front of the suction nozzle 200. Correspondingly, the centerline L1 of the lens 2232b is as follows: Figure 7As shown, the front is tilted downward relative to the rear at a predetermined angle θ2 relative to the horizontal line. With this configuration, in Embodiment 1, light from the LED 2212b, which has passed through lens 2232b, can be directed toward the surface being cleaned. Furthermore, although not shown, the center lines of lenses 2231a, 2231b, and 2232a are similarly tilted toward the surface being cleaned.

[0058] In Embodiment 1, multiple LEDs 2211a, 2211b and LEDs 2212a, 2212b are included, and they are arranged alternately. In Embodiment 1, LEDs 2211a and 2211b are white LEDs, and LEDs 2212a and 2212b are green LEDs. That is, the LEDs are arranged from left to right in the left-right direction (width direction) of the suction body 200 in the order of green, white, green, white, green, white, green. In other words, the LEDs arranged on the suction body 200 are arranged in a combination of green, white, and green, with white in the center and green on the left and right sides.

[0059] Furthermore, in Example 1, multiple LEDs of different colors, including green and white, are simultaneously lit, and light is shone onto the ground while the LEDs of different colors are mixed. The reasons for choosing multiple LEDs of different colors, including green and white, will be explained.

[0060] Figure 9 This is the Munsell color wheel (hereinafter, appropriately referred to as the Munsell color wheel) that describes the hue of the illuminating light. The Munsell color wheel is a ring-shaped Munsell color chart with a center P0, and in the illustrated example, it has 20 hues divided into 20 equal parts. The symbols on the circumference indicate the hue (synonymous with "color"): R for red, Y for yellow, G for green, B for blue, and P for violet.

[0061] For example, if light of an absorbent color that is easily absorbed by the surface being cleaned is irradiated from the irradiation unit 202, the surface being cleaned will absorb the light, making it easy for the user to visually identify the light reflected from the trash and thus easily pinpoint the location of the trash. Therefore, for example, if the irradiation unit 202 irradiates light of a non-isochromatic color as the absorbent color of the surface being cleaned, this non-isochromatic light possesses a unique characteristic. Figure 8 The area shown is the region outside the two adjacent hues of the 20 hues in the Munsell color wheel corresponding to the color of the surface being cleaned. By illuminating the surface with light of a different color, the light is easily absorbed by the cleaning surface, suppressing reflection and making the trash more visible, thus improving the visual recognition of the trash.

[0062] For example, regarding the hue C1 of the surface being cleaned, the hues adjacent to hue C1 among the 20 hues are hues 5YR and hue 10YR. If the area between hues 5YR and hue 10YR, which contain hue C1, is defined as a homologue of hue C1, then the irradiation unit 202 irradiates light of hues belonging to the area other than this homologue, i.e., non-homologue colors. Furthermore, when irradiating monochromatic light, any one color can be selected from non-homologue colors, and when irradiating light of multiple colors L, any two or more colors can be selected.

[0063] In Example 1, the irradiation unit 202 simultaneously illuminates multiple colors of LEDs, including green (5G) and white, and irradiates the ground with light while the LEDs of multiple colors are mixed.

[0064] For example, in the case of a wooden floor being cleaned, the color is generally close to that of a tree, between yellow (5Y) and purple (5P). Therefore, if light of a hue outside the area between hue 5Y and hue 5P is irradiated, specifically, light of a hue between yellow-green (7.5GY) and blue (5B), the color difference between the debris and the cleaned surface can be increased, making the debris more visible. Therefore, in Embodiment 1, a green LED is included as the irradiation unit 202.

[0065] Figure 10This is a block diagram of an electric vacuum cleaner according to Embodiment 1 of the present invention. The control device 500 of the vacuum cleaner body 1 is connected to buttons 124 and 125 of the operation unit 121 and the battery 3. When buttons 124 and 125 of the operation unit 121 are pressed, the control device 500 receives electrical power from the battery 3 and supplies power to the suction port 200 via two power supply systems 261 and 261 of the extension tube 300 wiring. In the suction port 200, electrical power is received via connection terminal 251 and supplied to the substrate 222. The LED 2212 emits green light using the electrical power supplied to the substrate 222. On the other hand, LEDs 2211a and 2211b emit white light using the electrical power adjusted by the input adjustment unit 2215. LEDs 2212a and 2212b emit green light when powered by the maximum electrical power received by the substrate 222, while LEDs 2211a and 2211b emit white light when powered by a reduced amount of electrical power. If the white LEDs 2211a and 2211b and the green LEDs 2212a and 2212b simultaneously emit light at maximum power, color unevenness will occur, reducing the visual visibility of litter. Therefore, in Embodiment 1, the electrical power supplied to the white LEDs 2211a and 2211b is adjusted by the input adjustment unit 2215 to suppress color unevenness. Since there are individual differences in the amount of light emitted by the white LEDs 2211a and 2211b and the green LEDs 2212a and 2212b, the electrical power supplied to the colored LEDs 2211a and 2211b is individually adjusted by changing the resistance value in the input adjustment unit 2215. With this configuration, light with suppressed color unevenness can be obtained in Example 1.

[0066] Next, the structure of the lens fixing member 220, which constitutes part of the irradiation unit 202, will be described. Figure 11 This is a front view of the lens fixing component of Embodiment 1 of the present invention, viewed from the front. Figure 12 This is a rear view of the lens fixing component of Embodiment 1 of the present invention, viewed from the rear. Figure 13 This is a bottom view of the lens fixing component of Embodiment 1 of the present invention. Figure 14 yes Figure 12 Cross-sectional view of line XIV-XIV.

[0067] As described above, in Embodiment 1, white light is irradiated from lenses 2231a and 2231b, and green light is irradiated from lenses 2232a and 2232b. Lenses 2231a, 2231b and 2232a, 2232b are formed in a conical shape with their diameters increasing from the light incident side (rear side) to the light irradiation side (front side). Furthermore, the diameters of lenses 2231a, 2231b and 2232a, 2232b on the light irradiation side (front side) are different. That is, the diameter D1 of the light irradiation side (front side) of lenses 2231a and 2231b is larger than the diameter D2 of the light irradiation side (front side) of lenses 2232a and 2232b (D1 > D2). Furthermore, lenses 2231a, 2231b and lenses 2232a, 2232b are concave from the irradiation side (front side) to the incident side (rear side), and the radii of curvature 2231aR, 2231bR of the irradiation side (front side) of lenses 2231a, 2231b irradiating white light are formed to be larger than the radii of curvature 2232aR, 2232bR of the irradiation side (front side) of lenses 2232a, 2232b irradiating green light (2231aR > 2232aR, 2231bR > 2232bR).

[0068] Therefore, the focusing power of lenses 2231a and 2231b illuminating white light is increased. On the other hand, the radius of curvature of lenses 2232a and 2232b illuminating green light is smaller than that of lenses 2231a and 2231b illuminating white light, so the focusing power is decreased. In other words, lenses 2232a and 2232b illuminating green light have a wider field of view than lenses 2231a and 2231b illuminating white light. In Embodiment 1, lenses with different field of view are used in combination, so the green light absorbed by the cleaning surface is diffused, and the white light is concentrated and brightened, improving the visual recognition of the waste. As described above, the white LEDs 2211a and 2211b are supplied with power adjusted by the input adjustment unit 2215, so the green LEDs 2212a and 2212b are not over-illuminated, and color unevenness can be suppressed.

[0069] As explained above, according to Embodiment 1, white LEDs 2211a and 2211b and green LEDs 2212a and 2212b are simultaneously lit to illuminate the surface being cleaned. Therefore, for example, in a floor, the floor easily absorbs the light of green LEDs 2212a and 2212b to suppress reflection, and the white LEDs 2211a and 2211b make the trash easily visible. Thus, an electric vacuum cleaner with improved visual recognition of trash can be provided.

[0070] Example 2

[0071] use Figure 15 and Figure 16Embodiment 2 of the present invention will be described below. The same reference numerals are used to denote the same structures as in Embodiment 1, and detailed descriptions thereof are omitted. Figure 15 This is a front view of the lens fixing component according to Embodiment 2 of the present invention. Figure 16 This is a perspective view of the lens fixing component of Embodiment 2 of the present invention, viewed from the rear. Embodiment 2 differs from Embodiment 1 in the shape of the lens arranged in the left-right direction.

[0072] In Embodiment 1, all the lenses disposed on the lens fixing member 220 are formed into a conical shape. However, in Embodiment 2, the lens in the central part of the suction body 200 is formed into a conical shape, and the lenses on both sides of the conical lens are formed into a horizontally elongated shape extending along the left and right directions of the suction body 200.

[0073] Elongated lenses 2233 are formed on both sides of the conical lenses 2231a and 2232a in the left-right direction. An incident recess 2233d extending in the left-right direction is formed behind (on the back) of the elongated lenses 2233. Multiple LEDs (white LED 2211b, green LED 2212b) other than those facing lenses 2231a and 2211a and 2212a opposite to lenses 2232a are positioned opposite the incident recess 2233d. White light and green light incident from the elongated lenses 2233 are combined and irradiate the entire width of the elongated lenses 2233 from the front of the lens fixing member 220, irradiating the vicinity of the suction port 200. Conversely, light irradiated from lenses 2231a and 2232a located in the center of the lens fixing member 220 irradiates a position farther away than the light irradiated from the elongated lenses 2233.

[0074] According to Embodiment 2, conical lenses 2231a and 2232a are arranged in the center of the lens fixing member 220, and horizontally elongated lenses 2233 extending in the left and right directions are arranged on both sides of the lens fixing member 220. Therefore, the visibility of garbage located near the suction body 200 and garbage located far from the suction body 200 can be improved.

[0075] In addition, according to Embodiment 2, by arranging elongated lenses 2233 extending in the left and right directions on both sides of the lens fixing member 220, light can be irradiated throughout the width direction of the lens fixing member 220, making it easy to identify the width of the suction port 200.

[0076] Example 3

[0077] use Figures 17 to 18 Embodiment 3 of the present invention will be described below. Structures identical to those in Embodiment 1 will be labeled with the same reference numerals, and detailed descriptions thereof will be omitted. Figure 17This is a perspective view of the lens fixing component of Embodiment 3 of the present invention, viewed from the front. Figure 18 This is a perspective view of the lens fixing component of Embodiment 3 of the present invention, viewed from the rear. Figure 19 yes Figure 18 A cross-sectional view along line XIX-XIX. The difference between Embodiment 3 and Embodiment 1 lies in the shape of the lenses disposed on both sides of the lens fixing member 220 in the left-right direction.

[0078] Among the multiple lenses, the center lines of the curvature radii 2231aR and 2232aR of the illumination side (front side) of the lens 2231a and lens 2232a disposed in the central part of the suction body 200 are directed towards the front of the suction body 200.

[0079] The centerlines of the radii of curvature 2231cR and 2232cR of the lenses 2231a and 2232a on the left and right sides of the illumination side (front side) of the lenses 2231c and 2232c, which are disposed in the center of the suction body 200, are inclined outward in the left and right directions of the suction body 200 at predetermined angles θ3 and θ4 relative to the front of the suction body 200, respectively. In Embodiment 3, the angles θ3 and θ4 are set to 15 degrees. White LED light is irradiated from lens 2231c, and green LED light is irradiated from lens 2232c.

[0080] According to Embodiment 3, the center lines of the radii of curvature 2231cR and 2232cR of the illumination side (front side) of lenses 2231c and 2232c are tilted outward in the left and right directions of the suction body 200 at angles θ3 and θ4 respectively relative to the front of the suction body 200. This causes the white LED 2211b and the green LED 2212b to be lit simultaneously to illuminate the surface being cleaned. Therefore, the visibility of the debris located at the left and right ends of the suction body 200 can be improved, and an electric vacuum cleaner that can suppress the adsorption residue of debris located at the left and right ends of the suction body 200 can be provided.

[0081] Example 4

[0082] use Figure 20 Embodiment 4 of the present invention will be described. The same reference numerals are used to denote the same structures as in Embodiment 1, and detailed descriptions thereof are omitted. Figure 20 This is a front view of the lens fixing component of Embodiment 4 of the present invention. Embodiment 4 differs from Embodiment 1 in that the surface of the lens fixing component 220 is textured.

[0083] exist Figure 20In this embodiment, a finely textured surface is formed on at least the irradiation side of the lens fixing member 220, resulting in a blurred surface. In Embodiment 4, similar to Embodiment 1, white LED light and green LED light are emitted simultaneously. The electrical power supplied to the white LED light is adjusted to suppress color unevenness. However, if the white LED light and green LED light are incident on the textured lens fixing member 220, the light is diffusely reflected due to the finely formed unevenness, causing the white LED light and green LED light to mix.

[0084] In Embodiment 4, when the surface of the lens fixing member 220 is textured, the texture processing of the central portion 220a of the lens fixing member 220 is strengthened, and the texture processing is weakened as it moves from the central portion 220a to the outer portion 220b located on the left and right sides of the suction body 200.

[0085] According to Example 4, since the surface of the lens fixing member 220 is textured, light with less color unevenness can be irradiated onto the surface to be cleaned.

[0086] In addition, when performing texture processing, it can also be performed uniformly on the entire surface of the lens fixing component 220.

[0087] In the embodiments 1 to 4 described above, white LED light and green LED light are used. However, for example, all LED 221 can be set to white LEDs, and some of the lenses 2232a, 2232b, and 2232c can be green lenses.

[0088] Example 5

[0089] use Figure 21 and Figure 22 Embodiment 5 of the present invention will be described below. Structures identical to those in Embodiment 1 will be labeled with the same reference numerals, and detailed descriptions thereof will be omitted. Figure 21 This is a configuration diagram of the LED chips within LED221 in Embodiment 5 of the present invention. Figure 22 This is a configuration diagram of the LED chip for comparison with Embodiment 5 of the present invention. In this embodiment, instead of a single LED chip being built into the center of the component, it is arranged as follows: Figure 21As shown, when the required light intensity cannot be obtained using only one LED chip, there are many LEDs on the market that arrange two or more LED chips and embed them at a position offset from the center of the component. Therefore, it is conceivable to use two LEDs 221, which are arranged and embedded with LED chip 1 (22101) and LED chip 2 (22102). If the black dot in the center of LED chip 1 (22101) and LED chip 2 (22102) is used as the light source, then by arranging LEDs 221 in a manner where LED chip 1 (22101) and LED chip 2 (22102) are parallel to the ground, the light sources of LED chip 1 (22101) and LED chip 2 (22102) are at the same height from the ground, so the illumination range relative to the direction of travel overlaps, and the ground can be illuminated evenly. In addition, as a comparison, such as Figure 22 As shown, if LED chip 1 (22101) and LED chip 2 (22102) within LED 221 are arranged perpendicular to the ground, the illumination ranges of LED chip 1 (22101) and LED chip 2 (22102) in their respective directions of travel will not overlap due to their different heights from the ground, resulting in striped patterns on the ground and making it difficult to achieve good visual recognition of the trash. Therefore, in this embodiment, by arranging LED chip 1 (22101) and LED chip 2 (22102) parallel to the ground, the ground can be illuminated evenly, improving the visibility of the trash.

[0090] Furthermore, the present invention is not limited to the embodiments described above, and includes various modifications. The embodiments described above are given in detail for the purpose of readily understanding the present invention, and are not intended to include all the structures described.

[0091] Explanation of reference numerals in the attached figures

[0092] 1…Vacuum cleaner body; 2…Dust collection box; 3…Battery; 10…Main body; 11…Motor housing; 12…Handle; 70…Support platform; 71…Base; 72…Standard; 100…Electric vacuum cleaner; 121…Control unit; 122, 123…Lights; 124, 125, 126…Buttons; 200…Suction port; 201…Roller brush; 202…Illumination unit; 203…Suction inlet; 204…Air duct; 205…Connecting pipe; 206, 207…Wheels; 220…Lens fixing component; 220a…Central part; 220b…Outer part; 2201…Extension setting part; 2202…Protrusion; 2203…Shoulder; 2204…Protrusion; 221, 2211a, 2211b, 2212a, 2212b… LED; 2215…Input adjustment section; 222…Substrate; 223, 2231a, 2231b, 2231c, 2232a, 2232b…Lens; 2231aR, 2231bR, 2231cR, 2232aR, 2232bR, 2232cR…Radius of curvature; 2233…Horizontal lens; 2233d…Incident recess; 231…Support section; 233…Brushed motor; 234…Ground switch; 241…Lower housing; 242…Upper housing; 243…Recess; 244, 245…Slot; 246…Substrate limiting rib; 247…Lens fixing component limiting rib; 248…Buffer; 251…Connecting terminal; 261…Power supply system; 300…Extension tube; 500…Control device.

Claims

1. An electric vacuum cleaner, comprising: The fan motor is used to generate attraction. A suction nozzle that draws up the garbage attracted by the fan motor; and A dust collection section connected to the suction port body to collect the dust from the sucked-up debris. The electric vacuum cleaner is characterized by: The suction port has an irradiation section that irradiates the surface being cleaned. The irradiation unit includes: Multiple light-emitting parts capable of emitting green and white light; and Multiple lenses are used to receive light from the light-emitting unit, which then illuminates the surface to be cleaned from the front of the suction port. The irradiation unit includes lenses corresponding to the plurality of light-emitting parts. The shape of the lens varies depending on the type of light. The diameter of the irradiated side of the lens irradiating white light is larger than the diameter of the irradiated side of the lens irradiating green light.

2. The electric vacuum cleaner as described in claim 1, characterized in that: The field of view of the lens illuminating white light is greater than that of the lens illuminating green light.

3. The electric vacuum cleaner as described in claim 1 or 2, characterized in that: The lens at the center of the suction port body among the plurality of lenses is formed in a conical shape, and the lenses on both sides of the conical lens are formed in a horizontally elongated shape extending in the left and right directions of the suction port body.

4. The electric vacuum cleaner as described in claim 1 or 2, characterized in that: The center line of the radius of curvature of the lens located at the center of the suction port body on its illumination side faces forward of the suction port body. The center lines of the curvature radii of the lenses on the left and right sides of the lens disposed in the center of the suction body are inclined outward in the left and right directions relative to the front of the suction body at a predetermined angle.

5. The electric vacuum cleaner as described in claim 4, characterized in that: The specified angle is 15 degrees.

Images