TW202320691A - electric vacuum cleaner - Google Patents

Abstract

The present invention eliminates uneven coloration in an electric vacuum cleaner equipped with LEDs that can increase the visibility of dirt. An electric vacuum cleaner according to the present invention comprises a fan motor that generates a suction force and a vacuum head that sucks up dirt suctioned by the fan motor, the electric vacuum cleaner being characterized in that the vacuum head includes a plurality of light sources and within this plurality of light sources, at least one light source among a plurality of light sources with the same emission color is different in luminance from other light sources of the same color.

Description

electric vacuum cleaner

The invention relates to an electric vacuum cleaner.

For example, in the case of vacuuming by an electric vacuum cleaner, the user visually confirms the surfaces to be vacuumed such as floors and shelves, and collects dust and other garbage. At this time, when the visibility of the garbage from the user is low, vacuum residue may be generated, or efficiency may decrease due to vacuuming in a place without garbage. Therefore, the technique described in Patent Document 1 is known as a technique for improving the visibility of garbage on the surface to be cleaned. In Patent Document 1, an electric vacuum cleaner is described, which comprises: a suction body having a suction port for sucking gas containing dust; and a light-emitting diode disposed on the suction body; or when it is arranged approximately parallel to the ground, the above-mentioned light-emitting diodes are arranged in such a way that the irradiation range of the light emitted from the above-mentioned light-emitting diodes and irradiated on the outside of the above-mentioned suction body expands from the direction extending approximately parallel to the ground toward the downward direction. The body is arranged on the above-mentioned suction body. [Prior Art Literature] [Patent Document]

[Patent Document 1] International Publication No. 2008/035478

[Problem to be solved by the invention]

In the technology described in Patent Document 1, the irradiation range of the light-emitting diodes to the ground is not considered. Therefore, there is a problem that the irradiated light does not sufficiently spread over the surface to be vacuumed, and garbage is missed. Also, it is known that when LEDs with two colors of green and white are used as light-emitting diodes to irradiate the ground, because the brightness of white light is higher than that of green, the green light on the illuminated ground is offset by white, resulting in green and white light. The problem of clear white. It is assumed that due to this situation, the user will feel uncomfortable about the mixing method of the two colors during vacuuming, and there is a problem that the improvement of the visibility of garbage by using LED light is not optimized. In the present invention, the object is to provide a suction port that emits colorless and uneven light on the irradiated ground when the ground is irradiated by green and white two-color LEDs. [Technical means to solve the problem]

The present invention is an electric vacuum cleaner, which is characterized in that it comprises: a fan motor, which generates suction; a suction body, which sucks up the garbage attracted by the fan motor; and the suction body has a plurality of light sources, and the plurality of light sources, especially Among the plurality of light sources with the same luminous color, the brightness of at least one light source is different from other light sources of the same color. [Effect of Invention]

According to the present invention, it is possible to provide a suction nozzle body for an electric vacuum that eliminates color unevenness of LEDs and irradiates the floor with light efficiently, and an electric vacuum cleaner provided therewith.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Fig. 1 is a side view showing an example of a side view of an electric vacuum cleaner to which the nozzle body of this embodiment is applied. The electric vacuum cleaner 1000 is a cyclone type, and includes a vacuum cleaner body 1 , a dust collecting box (dust collecting device) 2 , and a rechargeable battery 3 .

The cleaner body 1 is configured by including a main body portion 10 , a motor case portion 11 , and a handle portion 12 . An electric blower (not shown) that generates suction is accommodated in the motor housing portion 11 . An operation switch SW for switching the suction force is provided on the handle portion 12 .

One end of the extension pipe 5 is connected to the connection port of the vacuum cleaner body 1 in such a manner as to communicate with the dust collecting box 2 of the vacuum cleaner body 1 . Also, the other end of the extension tube 5 is connected to the mouthpiece body 400 . Also, the extension tube 5 forms an unshown ventilation path, and is provided with wiring (not shown) electrically connecting the rechargeable battery 3 and the motor (not shown) for the brush of the nozzle body 400 . In addition, the extension tube of this embodiment is an extension tube manufactured using the lightweight and strong calculation method of topology optimization technology. As shown in the figure, the visible part of the extension tube has irregular unevenness shape.

In addition, the electric vacuum cleaner 1000 is not limited to the stick-type vacuum cleaner shown in the figure, and can also be applied to cord-type or cordless electric vacuum cleaners such as hand-held vacuum cleaners and bucket-type (cylinder-type) vacuum cleaners.

Fig. 2 is a perspective view of the mouthpiece when viewed from the upper side. As shown in FIG. 2 , the nozzle body 400 is an electric brush type in which a brush is rotated by a motor, and includes a nozzle body 20 and a joint part 30 freely rotatably connected to the nozzle body 20 .

The mouthpiece body 20 is configured by combining a lower case 21 , an upper case 22 , a lens 63 and a unit cover 24 . The lower case 21, the upper case 22, the lens 63, and the unit cover 24 are all made of a synthetic resin material. For example, the lower case 21 and the upper case 22 are formed of ABS resin or the like. The lens 63 is formed of acrylic resin. The unit cover 24 is formed of resin such as glass-containing nylon, which is harder than ABS resin. In addition, a buffer portion 23 is provided on the lower case 21 . The cushioning portion 23 is formed of elastomer resin, and is formed by double molding with the lower case 21 . In this way, the unit cover 24 and the cushioning portion 23 , which are parts that are likely to hit the wall or the like when the user vacuums, are made of strong members.

Figure 3 is the front view of the suction body. In addition, FIG. 3 is a state of the mouthpiece body 400 in the state of FIG. 2 viewed from the front. As shown in FIG. 3 , the buffer portion 23 is provided on the front side of the lower case 21 and is formed to extend in the width direction (left-right direction). Also, the lower portion of the buffer portion 23 is formed shorter than the width of the mouthpiece body 20 . Also, the upper right end of the buffer portion 23 extends to the right end of the lower case 21 , and the left end extends to the unit cover 24 .

The upper case 22 of the mouthpiece body 20 is formed to be shorter than the lower case 21 in the left-right direction (width direction). In other words, a part of the lower housing 21 of the mouthpiece body 20 protrudes from the right end of the upper housing 22 , and the unit housing 24 protrudes from the left end of the upper housing 22 .

Fig. 4 is a three-dimensional view of the mouthpiece when viewed from the bottom side. As shown in FIG. 4 , the suction nozzle body 400 is provided with a rotary brush (rotary cleaning body) 40 and a bearing cover 50 , and is constituted. Note that details of the bearing housing 50 will be described later.

The rotating brush 40 is arranged along the left-right direction (width direction) of the nozzle main body 20, and is rotatably supported in the brush chamber Q. Moreover, the rotating brush 40 is provided continuously from one end side of the nozzle body 20 in the left-right direction (the axial direction of the rotating brush 40 ) to the other end side.

Moreover, the rotating brush 40 is equipped with several types of brushes, such as a brush which differs in hardness, height, etc., and each brush is arrange|positioned in a spiral shape. The joint portion 30 is connected to the extension pipe 300 (see FIG. 1 ) and used in a stick state, or directly connected to the cleaner body 1 and used in a handheld state. Moreover, the joint part 30 is comprised including the straight pipe part 31, the rotary joint part 32, and the rotary cover 33.

In addition, in the lower case 21 , leg portions 25 are formed on the back surface of the lower case 21 . The leg portion 25 is integrally molded with the lower case 21 by resin. Also, the leg portion 25 has extending portions 25a, 25a extending rearward from the vicinity of the left and right sides of the rotary joint portion 32, and a connecting portion 25b connecting the rear ends of the extending portion 25a to each other, and is formed in a U-shape in plan view. Moreover, the wheel 25c is rotatably supported by the connection part 25b.

Also, in the lower casing 21 , the bristles 120 following the shape of the rotating brush 40 are provided behind the rotating brush 40 . By providing such bristles 120, dust scraped in from the front by the rotating brush 40 is prevented from flying out to the rear. Moreover, the bristle 120 has a rotation shaft (not shown) parallel to the rotation brush 40, and is comprised so that it may rotate in the front-back direction.

Fig. 5 is a top view showing the state where the upper shell 22 is removed from the suction port body. Fig. 6 is a perspective view showing the state in which the upper shell is removed from the suction port body. FIG. 7 is a perspective view of the LED substrate 61 as the light source. As shown in FIGS. 5 and 6 , an LED substrate 60 (wiring substrate) on which LEDs (Light Emitting Diodes: Light Emitting Diodes) 61 , 61 as a plurality of light emitting elements are mounted is accommodated in the lower case 21 . The lens 63 fixed to the upper case 22 is arranged in front of the LED board 60 so that it is covered from above. As shown in FIG. 7 , this LED board 60 is provided with a plurality of five LEDs 6101G, 6102W, 6103G, 6104W, and 6015G in order from the right. In addition, 6101G, 6103G, and 6015G have green light emitting colors, and 6102W and 6104W have white light emitting colors. That is, from right to left in the left-right direction (width direction) of the suction nozzle body 400, they are alternately arranged in the order of green, white, green, white, and green. In addition, in Example 1, LEDs of a plurality of colors of green and white are turned on at the same time, and the LEDs of a plurality of colors are mixed to irradiate the ground with light. The reasons for selecting LEDs of multiple colors of green and white will be explained.

FIG. 8 is a hue circle of the Munsell color system (hereinafter, referred to as Munsell color circle as appropriate) for explaining the hue of irradiated light. The Munsell color wheel is a ring-shaped Munsell color chip with a center P0. In the example shown in the figure, it has 20 hues that divide the circumference into 20 equal parts. The marks on the circle indicate hue (synonymous with "color"), R means red, Y means yellow, G means green, B means blue, and P means purple. For example, if light of a color that is easily absorbed by the surface to be vacuumed is irradiated from a light source, that is, light of an absorbing color is absorbed by the surface to be vacuumed, so the user can easily see the light reflected by the garbage, and can easily confirm the position of the garbage. Therefore, for example, in the Munsell color circle shown in FIG. 8 , the LED 61 irradiates the non-color phases of the 20 hues that have the hues of the regions other than the region between the two hues adjacent to the hue corresponding to the color of the surface to be vacuumed. The light of the same color is the light of the absorbing color of the vacuumed surface. By irradiating light of different colors, the surface to be vacuumed can easily absorb light and suppress reflection, making garbage more conspicuous, so the visibility of garbage can be improved. For example, regarding the hue C1 of the surface to be vacuumed, the hues adjacent to the hue C1 among the 20 hues are hue 5YR and hue 10YR. If the area between the hue 5YR and the hue 10YR including the hue C1 is defined as the same color as the hue C1 of the surface to be vacuumed, then the light source illuminates the hue that belongs to the area other than the same color, that is, the non-same color light. In addition, in the case of irradiating monochromatic light, any one color can be selected from non-homogenous colors, and in the case of irradiating light L of multiple colors, any two or more colors can be selected.

In Example 1, the ground was irradiated with light in a state where green (5G) and white LEDs of a plurality of colors were simultaneously turned on and the LEDs of a plurality of colors were mixed.

For example, when the surface to be vacuumed is a wooden floor, generally speaking, it is close to the wood color between yellow (5Y) and purple (5P). Therefore, if the light of the hue of the region other than the region between the hue 5Y and the hue 5P is irradiated, specifically, for example, the light of the hue between the yellow-green (7.5Y) and the blue (5B), the garbage can be increased. The color difference from the vacuumed surface can easily make the garbage more conspicuous. Therefore, in Example 1, a green LED is provided.

Furthermore, in this embodiment 1, among the LEDs of multiple colors 6101G (green), 6102W (white), 6103G (green), 6104W (white), and 6015G (green) from the right, especially the central one 6103G has a current 30% larger than that of 6101G (green) and 6015G (green) at both ends. As the brightness of the green light in the center rises and the brightness of the green lights at both ends decreases, when the white LEDs 6102W (White) and 6104W (White) emit light at the same time, the irradiated ground light is better mixed. Therefore, 6103G (green) has resistors of different magnitudes of resistance than 6101G (green) and 6015G (green).

Also, behind the LED substrate 60, a flow path portion 64 (a member forming a flow path) constituting a part of the flow path communicating with the joint portion 30 is integrally formed.

Moreover, the motor 70 as a drive source which drives the rotating brush 40 is arrange|positioned in the lower case 21. As shown in FIG. The motor 70 is located on one end side (left side) in the left-right direction. Moreover, the control board 80 which controls the rotating brush 40 is arrange|positioned in the lower case 21 on the side opposite to the motor 70 in the left-right direction.

FIG. 9 shows a perspective view of the upper housing, and FIG. 10 shows a front view of the upper housing 22 . As shown in FIGS. 9 and 10 , the upper housing 22 holds a lens 63 . The upper case 22 has protrusions 22 a and 22 b on the bottom side thereof, and the protrusions engage with protrusions of the lower case to fix the upper case and the lower case. A front view of the lens 63 is shown in FIG. 11 , and a top view of the lens 63 is shown in FIG. 12 . The lens 63 has a first convex portion 63 e and a second convex portion 63 d on both sides, and the convex portion engages with a concave portion of the lower housing 22 , and the lens 63 is fixed to the upper housing 22 . Moreover, as shown in FIG. 12, the lens 63 also has the 3rd convex part 63b and the 4th convex part 63a on the LED side. With the third convex portion 63b and the fourth convex portion 63a, the distance between the LED and the lens can be kept relatively close so that the LED 61 does not come into contact with the lens 63, thereby preventing damage to the LED and stably mounting it. In addition, lens 63f is a lens for green in 6101G, lens 63h is a lens for green in the center of 6103G, and lens 63j is a lens for green LED on the side of 6105G. Also, lens 63g is a lens for white of 6102W, and lens 63i is a lens for 6104w. Therefore, white light is emitted from the lens 63g and the lens 63i, and green light is emitted from the lens 63f, the lens 63h, and the lens 63j. The lens 63g, the lens 63i, the lens 63f, the lens 63h, and the lens 63j are formed in a conical shape so as to expand in diameter from the light incident side (rear side) toward the light irradiation side (front side). In addition, the lens diameters of the lens 63f, the lens 63h, and the lens 63j are different from those of the lens 63g and the lens 63i on the light irradiation side (front side). That is, the diameter D1 of the irradiation side (front side) of the lens 63f, the lens 63h, and the lens 63j is larger than the diameter D2 of the irradiation side (front side) of the lens 63g and the lens 63i (D1>D2). Therefore, the lens that emits white light has a lower refractive index, so the degree of light collection becomes higher. On the other hand, the radius of curvature of the lens irradiated with green light is smaller than that of the lens irradiated with white light, and the degree of light concentration becomes lower due to the higher refractive index. In other words, the picture angles of the lens 63f, the lens 63h, and the lens 63j that irradiate green light are wider than those of the lens 63g and lens 63i that irradiate white light. In Example 1, since lenses with different viewing angles are used in combination, the green light absorbed by the dust-absorbing surface is diffused, and the white light is concentrated and brightened, thereby improving the visibility of garbage. Furthermore, as mentioned above, since the brightness of the central green is increased, it can be more easily mixed with white, and color unevenness can be suppressed.

Fig. 13 is a perspective view of the LED holder. As shown in FIG. 13 , the left and right ends 64 b and 64 c of the flow path portion 64 are formed to extend downward along the attachment hole 21 a of the lower housing 21 . Figure 14 is the front view of the LED holder. Figure 15 is a top view of the LED holder. Fig. 16 is a sectional view taken along line XII-XII of Fig. 14 . In FIG. 16, the board|substrate holding part 65b which holds the LED board|substrate 60 is formed. The substrate holding portion 65b is formed in a concave shape in cross-sectional view, and is formed to extend in the left-right direction (direction perpendicular to the paper surface in the drawing). In addition, the width in the front-rear direction of the board holding portion 65b has a length for fitting the lower part of the LED board 60 . Thereby, the LED substrate 60 can be held stably. Moreover, the restriction|regulation protrusion 65d which restricts the movement of the LED board|substrate 60 to the left-right direction is formed. Moreover, the rib 65c of the LED holder securely fixes the LED substrate 60 by extending the rib upward as much as possible structurally. Although the LED substrate is fixed by sandwiching the ribs 65c and 65e, at this time, the notches 61d and 61e of the LED substrate are fitted with the ribs 63f and 63g of the LED holder 62 .

As shown in FIG. 17 , when the joint portion 30 is attached to the lower housing 21 , the connection portion 32 c is connected to the flow path portion 64 . Also, a gap S1 for introducing air is formed on the left side of the lower case 21 . When the electric blower of the vacuum cleaner body 1 is driven to generate suction force, air flows from the brush chamber Q (refer to FIG. 26 ) through the joint part 30, and at the same time, external air is introduced from the gap S1. The air introduced from the gap S1 cools the motor 70 and then is introduced into the joint part 30 from the through holes 32d to 32g.

Figure 18 is a top view showing the back side of the upper housing. As shown in FIG. 18, on the back surface of the upper case 22, a plurality of concave portions 22b serving as material-reducing portions are formed in a plurality of positions. By forming these concave portions 22b, the weight of the upper case 22 can be reduced, and the weight of the mouthpiece body 400 can be reduced. Moreover, the recessed part 22b is formed in the shape of a long hole long in the front-back direction with a predetermined width, and is formed at intervals in the left-right direction. Thereby, while ensuring the strength against the load from the upper direction which tends to be applied to the upper case, weight reduction is achieved.

In addition, screw holes 22c, 22d, and 22e are formed on the back surface of the upper case 22 .

Figure 19 is a top view of the suction body. As shown in FIG. 19 , the lower casing 21 of the suction body 400 is fixed to the upper casing 22 by screws. Screw insertion holes (not shown) through which the screws 121a, 121b, and 121c are inserted are formed in the lower case 21 . Screw insertion holes are formed at positions facing the above-mentioned screw holes 22c, 22d, and 22e in the up-down direction.

The screws 121 a , 121 b , 121 c are inserted from the bottom side of the lower case 21 to the respective screw insertion holes, and screwed into and fixed in the screw holes 22 c , 22 d , 22 e of the upper case 22 .

Moreover, the screw fixing part of the screw 121d for fixing the unit cover 24 to the lower case 21 is provided in the lower case 21. As shown in FIG.

Fig. 20 shows the cross-sectional view of XXXIV-XXXIV in Fig. 3, as shown here, the lower casing 21 and the upper casing 22 of the suction body 400 are fixed by claw fitting in addition to the above-mentioned screw fixing. That is, claws 22 t are formed in front of the front edge of the upper case 22 , and claws 22 u are formed in the rear edge of the upper case 22 . On the upper portion of the lower case 21 is formed a concave portion 21t into which the claw 22t is fitted, and on the rear portion of the lower case 21 is formed a hole 21u into which the claw 22u is fitted.

0PB: Hue 1: Vacuum cleaner body 2: dust box 3: Rechargeable battery 5: Extension tube 5B: Hue 5BG: Hue 5G: Hue 5GY: Hue 5P: Hue 5PB: Hue 5R: Hue 5RP: Hue 5Y: Hue 5YR: Hue 10: Main body 10B: Hue 10BG: Hue 10G: Hue 10GY: Hue 10P: Hue 10R: Hue 10RP: Hue 10Y: Hue 10YR: Hue 11: Motor housing part 12: handle part 20: Suction body 21: Lower shell 21t: concave part 21u: hole 22: Upper shell 22a: convex part 22b: convex part 22c: screw hole 22d: screw hole 22e: screw hole 22t: Claw 22u: Claw 23: Buffer 24: unit cover 25: feet 25a: Extension 25b: connection part 25c: Wheel 30: joint part 31: Straight pipe part 32: Rotary joint part 32c: connecting part 32d: through hole 33: Rotate the outer cover 40: Rotating Brush 50: Bearing cover 60: LED substrate 61:LED 62: LED holder 63: lens 63a: the fourth convex part 63b: the third convex part 63d: second convex part 63e: first convex part 63f～63j: lens 64: Flow path 64b: left and right ends 64c: left and right ends 65b: Substrate holding part 65c: Rib 65d: Limit protrusion 65e: Rib 70: Motor 80: Control substrate 120: bristles 121a: screw 121b: screw 121c: screw 121d: screw 400: Suction body 1000: electric vacuum cleaner 6101G:LED 6102W:LED 6103G:LED 6104W:LED 6105G:LED C1: Hue D1: diameter D2: diameter P0: center Q: Brush room S1: Gap

Fig. 1 is a side view showing an example of an electric vacuum cleaner. Fig. 2 is a perspective view of the mouthpiece when viewed from the upper side. Figure 3 is the front view of the suction body. Fig. 4 is a three-dimensional view of the mouthpiece when viewed from the bottom side. Fig. 5 is a top view showing the state in which the upper shell is removed from the suction port body. Fig. 6 is a perspective view showing the state in which the upper shell is removed from the suction port body. FIG. 7 is a perspective view showing an LED substrate. Fig. 8 is the hue circle of the Munsell scale color system illustrating the hue of irradiated light. Fig. 9 is a three-dimensional view of the shell. Figure 10 Front view with casing attached. Figure 11 is the front view of the lens. Figure 12 is a top view of the lens. Fig. 13 is a perspective view of the LED holder. Figure 14 is the front view of the LED holder. Figure 15 is a top view of the LED holder. Fig. 16 is a sectional view taken along line XII-XII of Fig. 14 . Fig. 17 is a top view of the state where the upper shell is removed from the suction port body. Figure 18 is a top view showing the back side of the upper housing. Figure 19 is a bottom view of the suction body. Fig. 20 is a sectional view of XXXIV-XXXIV in Fig. 3 .

20: Suction body

21: Lower shell

22: Upper shell

23: Buffer

24: unit cover

30: joint part

63: lens

400: Suction body

S1: Gap

Claims (5)

An electric vacuum cleaner, characterized by comprising: a fan motor, which generates suction; and a suction body, which sucks up the garbage attracted by the fan motor; and The above-mentioned suction body has a plurality of light sources, Among the plurality of light sources mentioned above, especially among the plurality of light sources with the same luminescent color, the brightness of at least one light source is different from other light sources of the same color. Such as the electric vacuum cleaner of claim 1, wherein The plurality of light sources above have green and white light sources, The brightness of the first green light source among the above-mentioned green light sources is higher than that of other light sources. Such as the electric vacuum cleaner of claim 2, wherein The first green light source is arranged in the center of the plurality of light sources. Such as the electric vacuum cleaner of claim 3, wherein The green and white light sources of the plurality of light sources are arranged alternately, and the first green light source is arranged in the center. Such as the electric vacuum cleaner of claim 1 to 4, wherein The above-mentioned light sources are LEDs.

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