JPWO2005115214A1 - Vacuum cleaner - Google Patents

Abstract

An object of the present invention is to provide a vacuum cleaner that can be expected to have a sufficient deodorizing effect. The vacuum cleaner according to the present invention includes a dust collection chamber (21) for collecting dust, and the dust collection chamber ( 21) an electric blower (22) for applying a suction negative pressure, a communication air passage provided with the dust collection chamber (21) and the electric blower (22), and a photocatalyst treatment provided in the communication air passage. A photocatalytic filter (41) that is a deodorizing member, a light source that emits ultraviolet light, and an ultraviolet light emitter (42a) that receives and emits ultraviolet light from the light source and irradiates the photocatalytic filter (41) with ultraviolet light. The ultraviolet light emitter (42a) is formed in a shape that surrounds the deodorizing member and that can be irradiated with ultraviolet light. Since the ultraviolet light emitted from the ultraviolet light emitter is irradiated to the deodorizing member from the surrounding direction, the ultraviolet light can be sufficiently irradiated to the entire deodorizing member, and the photocatalyst is activated to sufficiently deodorize the communication air passage. The effect can be expected.

Description

  The present invention relates to a vacuum cleaner that uses a photocatalyst to deodorize a vacuum cleaner body.

In conventional vacuum cleaners, photocatalyst treatment is applied to the inner wall surface of the dust collection chamber and the dust collection bag, and ultraviolet rays are irradiated from the ultraviolet lamp to the photocatalyst-treated portion to kill microorganisms such as bacteria. What was made is known (for example, refer patent document 1).
Japanese Patent Laid-Open No. 2001-370

  However, in such a vacuum cleaner, although it can be expected to kill microorganisms such as bacteria, a satisfactory deodorizing effect cannot be expected.

  Then, this invention aims at providing the vacuum cleaner which can anticipate sufficient deodorizing effect.

  In order to achieve this object, the present invention provides a dust collecting part that collects dust, an electric blower that applies a suction negative pressure to the dust collecting part, and a communication air passage provided with the dust collecting part and the electric blower. A deodorizing member provided in the communication air passage and subjected to photocatalytic treatment; a light source that emits ultraviolet light; and ultraviolet light emission that emits ultraviolet light from the light source and emits the ultraviolet light to the deodorizing member. A vacuum cleaner comprising a body, wherein the ultraviolet light emitter surrounds the deodorizing member and is formed in a shape capable of irradiating with ultraviolet light.

  According to this configuration, when light is emitted from the ultraviolet light emitter, the ultraviolet light emitted from the ultraviolet light emitter is irradiated to the deodorizing member from the surrounding direction, so that the ultraviolet light is sufficiently irradiated to the entire deodorizing member. In addition, the activation of the photocatalyst can be expected to provide a sufficient deodorizing effect in the communication air passage.

  In addition, “light emission” of an ultraviolet light emitter refers to the case where light generated by the light emission phenomenon of the ultraviolet light emitter itself is emitted from the ultraviolet light emitter to the outside when receiving the ultraviolet light from the light source, and from the light source. It includes a phenomenon in which ultraviolet rays introduced into the light emitter are emitted from the ultraviolet light emitter to the outside. When ultraviolet rays are generated by the light emission phenomenon of the ultraviolet emitter itself, the ultraviolet emitter itself can be formed of a material that emits ultraviolet rays by receiving ultraviolet rays, or the light transmitting material receives ultraviolet rays. An ultraviolet light emitter can be formed by mixing a material that emits ultraviolet light, or an ultraviolet light emitter can be formed by applying an ultraviolet light emitting layer on the outer surface of the ultraviolet light emitter. Further, when ultraviolet light introduced from the light source to the ultraviolet light emitter is emitted from the ultraviolet light emitter to the outside, the ultraviolet light emitter can be formed from a light-transmitting material. In this case, the outer peripheral surface can be textured to increase the irradiation efficiency.

  In addition, “surrounding” means that the entire deodorizing member can be sufficiently irradiated with ultraviolet rays even when it is completely enclosed, and even when it is incomplete, and a sufficient deodorizing effect in the communication air passage can be obtained by activating the photocatalyst. In some cases,

  The present invention is based on Japanese patent applications claiming priority: Japanese Patent Application No. 2004-159240 (filed on May 28, 2004) and Japanese Patent Application No. 2004-221114 (filed on July 29, 2004). Are incorporated herein by reference.

FIG. 1 is a perspective view showing the appearance of a vacuum cleaner according to the present invention.
[FIG. 2] (a) The perspective view which fractured | ruptured a part of vacuum cleaner main body of the vacuum cleaner concerning this invention, (b) is the perspective view which expanded a part of photocatalyst filter.
[FIG. 3] (a) is a side view showing a part of the cleaner body shown in FIG.
FIG. 4 is a longitudinal sectional view showing a lid of the cleaner body shown in FIG.
FIG. 5 is an enlarged view of a portion A in FIG.
FIG. 6 is an enlarged view of a portion B in FIG.
FIG. 7 is a control circuit diagram of the vacuum cleaner of FIG.
[FIG. 8] It is explanatory drawing which shows the modification of the photocatalyst body of the vacuum cleaner concerning this invention.
FIG. 9 is a cross-sectional view of a main part showing another modification of the present invention.
FIG. 10 is a plan view of the main part of FIG.
FIG. 11 is a plan view of the ultraviolet light emitter shown in FIGS. 9 and 10. FIG.
FIG. 12 is a perspective view showing still another modification of the present invention.
FIG. 13 is a plan view showing another modification of the present invention.

  Hereinafter, an embodiment of a vacuum cleaner according to the present invention will be described with reference to the drawings.

  The vacuum cleaner 10 shown in FIG. 1 includes a vacuum cleaner main body 11, a dust collecting hose 12 and the like whose one end is detachably connected to a hose connection port 21a (see FIG. 2) at the front of the vacuum cleaner main body 11. The extension pipe 14 is detachably connected to the hand operation pipe 13 at the other end of the dust collecting hose 12, and a suction port body 15 is detachably connected to the tip of the extension pipe 14.

  In FIG. 1, reference numeral 13 a denotes an operation panel provided on the hand operation pipe 13. The operation panel 13a includes a switch 13b for lighting the light emitter, a switch S1 for switching the “weak / medium” suction air amount, a switch S2 for the “strong” suction air amount, a switch S3 for the “off”, and the like. Is provided.

  2 and 3A, the cleaner body 11 has a main body case 20 and a lid body 30 that is hinged to the upper portion of the main body case 20 and can be opened and closed in the vertical direction. ing.

  A dust collection chamber (dust collection portion) 21, which is an internal space having an opening at the top and having a connection port 21 a communicating with the dust collection hose 12, is formed at the front portion of the main body case 20. In addition, an electric motor chamber (not shown) that is an internal space in which an electric blower 22 that communicates with the dust collecting chamber 21 and applies a suction negative pressure to the dust collecting chamber 21 is built in the rear portion of the main body case 20. Is formed.

  The dust collection chamber 21 and the electric blower 22 are provided in a communication air passage that connects the connection port 21a of the cleaner body 11 and an exhaust hole (not shown) of the cleaner body 11 (not shown).

  Further, a pair of wheels 23 (the other is not shown) is provided on the side surface of the main body case 20, and a turning wheel SR is provided on the bottom surface.

  A dust collection bag F such as a paper pack filter is mounted in the dust collection chamber 21, and dust sucked from the dust collection hose 12 is captured in the dust collection bag F. Since this structure is well known, its detailed description is omitted. Moreover, this dust bag F is subjected to photocatalytic treatment.

  The lid 30 is provided so as to cover the opening of the dust collection chamber 21, and is provided on the upper side of the dust collection chamber 21. Further, the lid 30 is provided with a handle 30a protruding forward.

  Further, the lid 30 is formed with a window 31 at a portion facing the dust collection chamber 21 which is an internal space formed in the cleaner body 11 (see FIG. 4). This window 31 is an opening formed in the lid 30.

  As shown in FIG. 4, a transparent window cover 33 is detachably provided on the lid 30, and this window cover 33 covers the window 31 of the lid 30, and the window cover 31 directly covers the window 31. It is substantially the same as the case where is provided.

  On the front side of the window cover 33, there is formed a finger hooking portion 33a for hooking a finger when it is lifted upward and removed. The window cover 33 is fitted into an annular holding recess 32d provided at the outer peripheral edge of the window 31.

  Further, a holding protrusion 32a is provided on the front side and a holding rib 32b is provided on the rear side of the peripheral portion of the window 31 on the dust collection chamber 21 side.

  The holding protrusion 32a is provided at a position spaced apart from the window 31 by a predetermined distance, and extends in the left-right direction of the cleaner body 11 (the width direction that is a direction orthogonal to the front-rear direction). And the front-end | tip of this holding protrusion 32a is formed in R shape as shown in FIG.

  On the other hand, a plurality of holding ribs 32b are provided at predetermined intervals in the left-right direction (width direction) of the cleaner body 11, and the width (length in the front-rear direction) goes upward as shown in FIG. Therefore it is getting longer. A holding recess 32c is formed in the upper part of the front end of the holding rib 32b, that is, in the vicinity of the window 31.

  A photocatalyst (deodorant structure) 40 is detachably held by the holding protrusion 32 a and the holding rib 32 b so as to face the window 31 and is disposed in the dust collection chamber (communication air passage) 21.

  As shown in FIG. 2A, the photocatalyst body 40 includes a photocatalyst filter (deodorant member) 41 and a frame body 42 that holds the photocatalyst filter 41.

  The photocatalyst filter 41 includes a photocatalyst sheet (photocatalyst member) 41a containing a photocatalyst substance and a bamboo charcoal sheet 41b containing a bamboo charcoal substance that are almost alternately stacked. Here, the photocatalyst sheet 41a is bent into a wave shape, and the photocatalyst filter 41 has a honeycomb structure (see FIG. 2B).

  The frame body 42 has an annular holding frame (ultraviolet light emitter) 42a made of a transparent resin surrounding the photocatalyst filter 41, and a plurality of mounting frames 42b spanned below the holding frame 42a. Yes. The photocatalyst filter 41 is disposed on the mounting frame 42b so as to be disposed in the holding frame 42a so that the holes of the honeycomb structure extend in the vertical direction.

  Moreover, the holding frame 42a is formed in an annular shape from a transparent acrylic member, and the outer peripheral surface is subjected to embossing or the like. Thereby, when ultraviolet rays are irradiated from a part of the holding frame 42a to the inside, the ultraviolet rays are emitted from the entire holding frame 42a to emit ultraviolet rays.

  Further, as shown in FIGS. 5 and 6, a locking projection 43 that protrudes outward is provided over the entire circumference on the upper part of the outer peripheral surface of the holding frame 42 a. The locking projection 43 of the front holding frame 42a is detachably engaged with the holding projection 32a of the lid 30, and the locking projection 43 of the rear holding frame 42a is detachably attached to the recess 32c of the holding rib 32b. By being engaged, the photocatalyst body 40 is detachably attached to the lid body 30.

  Further, a buffer member 44 is provided on the upper end surface of the holding frame 42 a, and when the photocatalyst body 40 is attached to the lid body 30 by the buffer member 44, the frame body 42 directly contacts the peripheral portion of the window 31. Prevent contact.

  As shown in FIG. 4, a light source (ultraviolet light source) 50 that emits the desired ultraviolet light so as to be in contact with and close to the locking projection 43 of the holding frame 42 a is attached to the lid 30 and connected to the light source 50. Terminals 51 a and 52 a are connected to the lead wires 51 and 52 formed. As the light source 50, an ultraviolet lamp or the like is used.

  Moreover, the terminals 51a and 52a are attached to a resin terminal block 53, and the terminal block 53 is held by a bracket 54 attached to the front end portion of the lid 30 as shown in FIG.

  Further, terminals 51b and 52b exposed on the upper surface are attached to the upper part of the front end of the main body case 20 as shown in FIG. Moreover, when the lid 30 is closed as shown in FIG. 3A, the terminals 51a and 52a of the lid 30 come into contact with the terminals 51b and 52b of the main body case 20 as shown in FIG. 3B. Yes.

The terminals 51b and 52b are connected to a control circuit 55 having a power source as shown in FIG. The control circuit 55 is connected to the switches 13b, S1, S2, and S3 of the operation panel 13a, and to the electric blower 22 and the light source 50.
[Action]
Next, the operation of the vacuum cleaner having such a configuration will be described.

  When the switch S1 or S2 provided on the hand operation pipe 13 is turned on, the control circuit 55 drives the electric blower 22. When the electric blower 22 is driven, a negative suction pressure is generated, and the negative suction pressure is generated in the suction chamber (not shown) of the suction port body 15 through the dust collection chamber 21, the dust collection hose 12, the hand operation pipe 13, and the extension pipe 14. Works. Due to this negative suction pressure, dust and air on the surface to be cleaned are sucked from the suction opening of the suction chamber provided on the bottom surface of the suction port body 15, and the vacuum cleaner is passed through the extension pipe 14, the hand operation pipe 13 and the dust collecting hose 12. It is sucked into the dust collection chamber 21 of the main body 11.

  The dust sucked into the dust collection chamber 21 is collected in a dust collection bag F disposed in the dust collection chamber 21, and the air is sucked into the electric blower 22 in the motor chamber and then exhausted from the cleaner body 11 (not shown). Exhaust from the hole.

  On the other hand, bacteria and the like flow into the dust collection chamber 21 together with dust and air, and odorous components such as ammonia and acetaldehyde are emitted from the dust collection bag F and the like. This odor component is decomposed and deodorized by the photocatalyst filter (deodorant member) 41 of the photocatalyst body 40 provided on the lid body 30 located above the dust collection chamber 21. The bacteria themselves are also sterilized and decomposed by the photocatalytic filter (deodorant member) 41.

  In addition, the mechanism in which an odor component etc. are decomposed | disassembled by this photocatalyst filter (deodorant member) 41 is as follows.

The photocatalytic substance included in the photocatalytic sheet 41a of the photocatalytic filter (deodorant member) 41 is, for example, titanium dioxide (TIO ₂ ).

  When this titanium dioxide is exposed to light (ultraviolet rays), electrons are ejected from the surface to form positively charged holes called holes. These holes have a strong oxidizing power and take electrons from the surrounding organic substances to make them electrically stable.

  In this way, the organic matter from which electrons have been deprived by the oxidation-reduction action of titanium dioxide is decomposed and eventually becomes carbon dioxide, water, etc., and is emitted into the atmosphere. Moreover, the bamboo charcoal sheet 41b has an adsorbing power and can adsorb odor components.

  Here, since this photocatalyst filter (deodorant member) 41 is provided substantially along the window 31 formed in the lid 30, it can sufficiently hit light (ultraviolet rays) incident from the window 31 and is high. Deodorizing effect can be obtained.

  Furthermore, since the photocatalyst filter 41 is provided in the frame body 42 so that the pores of the honeycomb structure extend in the vertical direction, an odor component passes between the photocatalyst sheet 41a and the bamboo charcoal sheet 41b to excite the deodorizing action. Can do.

  Further, the air that has flowed into the dust collection chamber 21 hardly passes through the photocatalytic filter (deodorant member) 41 provided along the window 31 of the lid 30, and the dust sucked into the dust collection chamber 21. Hardly adheres to the photocatalytic filter (deodorant member) 41.

  Since the photocatalyst filter (deodorant member) 41 is detachably provided on the lid 30, even if dust is attached to the photocatalyst filter (deodorant member) 41, the photocatalyst filter ( The photocatalyst body 40 provided with the (deodorant member) 41 can be removed and cleaned or replaced.

  Since the photocatalytic filter (deodorant member) 41 has a honeycomb shape, the external light taken in from the window 31 reaches the dust collection bag F through the honeycomb-shaped gap, and the ultraviolet light of the external light is photocatalyzed. It acts on the dust bag F, and the odor component is decomposed by the photocatalyzed portion of the dust bag F.

  On the other hand, when the light emitter lighting switch 13b is turned on, the control circuit 55 turns on the light source 50. The ultraviolet rays emitted from the light source 50 enter the holding frame 42a, emit ultraviolet rays from the entire holding frame 42a, and emit ultraviolet rays from the entire holding frame 42a.

  Part of this ultraviolet light is irradiated to the photocatalytic filter (deodorant member) 41, and the odor component is decomposed by the photocatalyst filter (deodorant member) 41.

  In addition, a part of the other ultraviolet rays is irradiated to the dust collection bag F that has been subjected to the photocatalytic treatment, and the odor components in the dust collection bag F are decomposed.

  Furthermore, since a part of the ultraviolet rays are transmitted through the window 31 and radiated outwardly, the window 31 appears to shine in a purple color from the outside. Thereby, a user can understand that the deodorizing process in the dust collection chamber 21 is performed. In particular, it can be seen that the deodorizing process is performed during use at night or the like.

  Further, since the photocatalyst body 40 can always be kept clean, the decomposition action is not hindered by dust adhering to the photocatalyst body 40, and a sufficient deodorizing effect can be maintained over a long period of time.

  Furthermore, since the photocatalyst body 40 can be easily washed or replaced, even if the photocatalyst filter 41 is exposed in the dust collection chamber 21, it is possible to prevent the deodorizing effect from being lowered. And since this photocatalytic filter 41 is exposed, a high deodorizing effect can be obtained.

  In the daytime, outside light is taken in from the window 31, and ultraviolet light contained in the outside light is irradiated to the photocatalytic filter (deodorant member) 41, the dust collection bag F, and the like to decompose odor components. On the other hand, at night when the outside light taken in from the window 31 is small, the light source 50 emits light and emits ultraviolet rays, thereby guiding the ultraviolet rays into the holding frame 42a and radiating ultraviolet rays from the entire holding frame 42a. The odor component is decomposed by the (deodorant member) 41 and the dust bag F or the like. In this way, by properly using the ultraviolet light contained in the outside light during the daytime and at night and the ultraviolet light emitted from the holding frame 42a, the odor in the dust collection chamber 21 is effectively decomposed without wasting energy. can do.

(Modification 1)
In the above-described embodiment, the outer peripheral surface of the holding frame 42a is subjected to the embossing process so that the ultraviolet rays are emitted from the entire holding frame 42a. However, the present invention is not necessarily limited thereto.

  As shown in FIG. 8, a lens portion 56 may be provided at the lower end of the holding frame 42 a and ultraviolet rays may be irradiated downward from the lens portion 56. In this case, the ultraviolet rays are irradiated to the dust collection bag F through the lens portion 56 at the lower end of the holding frame, and the odor components in the odor bag can be decomposed.

(Modification 2)
In the embodiment described above, an example in which the holding frame 42a is an ultraviolet light emitter is shown, but the present invention is not necessarily limited thereto.

  For example, it may be configured as shown in FIGS. In FIG. 9, the window 31 is formed in an elliptical shape as shown in FIG. 10, and a cover protrusion 33a having an arcuate cross section is formed on the portion of the window cover 33 that faces the window 31. Yes. In addition, the front part of the cover protrusion 33a falls downward as a recess 33b as shown in FIGS.

  As shown in FIG. 9, the lid 30 is provided with a holding recess 32 d that extends annularly along the window 31. The holding recess 32d is formed between the inner and outer double annular flanges 32d1 and 32d2 protruding upward along the window 31. The inner annular flange 32d1 has an annular upright portion d1a and an annular inward protruding portion d1b that protrudes inward with respect to the annular upright portion d1a.

  Further, the edge 30b along the window 31 of the lid 30 is formed with a very small protruding amount from the annular upright portion d1a, and the annular inward protruding portion d1b is set to have a large protruding amount from the annular standing portion d1a. .

  Between the annular inward projecting portion d1b and the edge portion 30b along the window 31 of the lid body 30, an annular ultraviolet light emitter 57 made of a transparent resin that is elastically contacted with the annular upright portion d1a is held. . As shown in FIGS. 9 to 11, the ultraviolet light emitter 57 includes an annular light emitting portion (light emitting body) 57a formed in a ring shape in advance and an ultraviolet light incident portion projecting from the rear portion of the annular light emitting portion 57a. It has a protrusion 57b.

  A light source (ultraviolet light source) 58 for emitting ultraviolet rays is disposed at the rear end of the protrusion 57b. The light source 58 is also controlled by the control circuit 55 shown in FIG.

  Then, the light source 58 is caused to emit light, and the ultraviolet light from the light source 58 is incident on the projection 57b, so that the incident ultraviolet light is incident on the annular light emitting portion 57a and the ultraviolet light is emitted from the whole. The ultraviolet rays emitted from the annular light emitting part 57a are irradiated to the photocatalyst filter 41, which is a deodorizing member, from the obliquely upper periphery, and the odor is decomposed by the photocatalyst filter 41.

  At this time, since the ultraviolet rays can be visually recognized from the cover protrusion 33a, the operating state of the ultraviolet light emitter 57 can be confirmed.

(Modification 3)
Furthermore, the portion of the cover protrusion 33a described above may be an ultraviolet light emitter as shown in FIG. In this case, a leg 33c may be provided on the cover 33a, and a light source 33d that emits ultraviolet light may be desired on the end face of the leg 33c. In this case, the photocatalytic filter 41 is irradiated with ultraviolet rays from the entire cover portion 33a.

(Modification 4)
In the embodiment described above, an example in which the ultraviolet light emitter 57 is formed in a ring shape from the beginning is shown, but a ring-shaped member may not necessarily be used.

  That is, by arranging a linear light emitter made of a transparent resin and curved in an annular shape between the annular inward projecting portion d1b and the edge 30b along the window 31 of the lid 30, as shown in FIG. Such an ultraviolet emitter 59 may be used. In this case, the first light source 60 and the second light source 61 can face the end portions 59a and 59b of the ultraviolet light emitter 59, respectively. The ultraviolet light emitter 59 uses a flexible light guide having a structure in which an elastomer material is filled in a cylindrical fluororesin tube.

  In this case, if the first light source 60 and the second light source 61 are light sources that emit ultraviolet rays, it is possible to increase the ultraviolet rays incident on the ultraviolet light emitter 59. In addition, in this case, it is possible to prevent a decrease in the amount of light at the central portion of the ultraviolet light emitter 59.

  Further, if the first light source 60 is a light source that emits ultraviolet light, the second light source 61 is a light source that emits visible light, for example, blue light, and the first and second light sources 60 and 61 emit light simultaneously, The ultraviolet light emitter 59 emits ultraviolet light from the whole, and at the same time, blue visible light is emitted from the whole ultraviolet light emitter 59.

  Since this blue visible light can be confirmed from the window 31, when the blue visible light is visible from the window 31, it can be visually confirmed that the ultraviolet light is emitted from the ultraviolet light emitter 59.

  The second light source 61 is a light source that emits blue visible light, but is not necessarily limited thereto. That is, the second light source 61 may be a light source that emits visible light other than blue.

  As described above, the vacuum cleaner according to the embodiment of the present invention applies a suction negative pressure to the dust collecting part (dust collecting chamber 21) for collecting dust and the dust collecting part (dust collecting chamber 21). The electric blower 22 to be made, a communication air passage provided with the dust collection part (dust collection chamber 21) and the electric blower 22 (in the embodiment, the dust collection chamber 21 is a part of the communication air passage), and the communication air passage (implementation). In the example, the deodorizing member (photocatalyst filter 41) provided with the dust collection chamber 21 in a part of the communication air passage and subjected to photocatalyst treatment, a light source that emits ultraviolet light, and ultraviolet light from the light source is received. Ultraviolet emitters (42a, 57, 33a, 59) that emit and irradiate the deodorizing member (photocatalytic filter 41) with ultraviolet rays are provided. Moreover, the ultraviolet light emitters (42a, 57, 33a, 59) are formed in a shape that surrounds the deodorizing member and can be irradiated with ultraviolet rays.

  According to this configuration, when the ultraviolet light is emitted from the ultraviolet light emitter, the ultraviolet light emitted from the ultraviolet light emitter (42a, 57, 33a, 59) is irradiated from the direction surrounding the deodorizing member (photocatalytic filter 41). Therefore, it is possible to sufficiently irradiate the entire deodorizing member (photocatalytic filter 41) with ultraviolet rays, and a sufficient deodorizing effect in the communication air passage (in the embodiment, the dust collecting chamber 21 is a part of the communication air passage) can be expected.

  In the above-described embodiment, the communication air passage in which the deodorizing member (photocatalytic filter 41) is disposed is the dust collection chamber 21, and this communication air passage is a blower chamber in which the electric blower 22 is disposed, and the electric motor. It may be an exhaust chamber downstream of the blower.

  Further, the ultraviolet light emitter of the vacuum cleaner according to the embodiment of the present invention is a light emitter (holding frame 42a, annular ultraviolet light emitter) disposed so as to surround the deodorizing member (photocatalytic filter 41). Body 57). According to this configuration, when the ultraviolet light is emitted from the ultraviolet light emitter, the ultraviolet light emitted from the ultraviolet light emitter (42a, 57, 59) is irradiated from the direction surrounding the deodorizing member (photocatalytic filter 41). Ultraviolet rays can be sufficiently applied to the entire deodorizing member (photocatalytic filter 41), and a sufficient deodorizing effect in the communication air passage (in the embodiment, the dust collecting chamber 21 is a part of the communication air passage) can be expected.

  Furthermore, the ultraviolet light emitter of the electric vacuum cleaner according to the embodiment of the present invention is a holding frame 42a that holds the deodorizing member so as to surround it. According to this configuration, when the holding frame 42a (ultraviolet light emitter) is caused to emit light, ultraviolet rays emitted from the holding frame 42a (ultraviolet light emitter) are emitted from the direction surrounding the deodorizing member (photocatalytic filter 41). Further, the entire deodorizing member (photocatalytic filter 41) can be sufficiently irradiated with ultraviolet rays, and a sufficient deodorizing effect in the communication air passage (in the embodiment, the dust collecting chamber 21 is a part of the communication air passage) can be expected.

  Further, in the vacuum cleaner according to the embodiment of the present invention, the transparent air passage (in the example, the dust collecting chamber 21 is a part of the air passage) in the portion facing the deodorizing member (photocatalytic filter 41) is transparent. A window (a transparent window cover 33 covering the window 31) is formed.

  According to this configuration, during the daytime, ultraviolet light of external light that enters the dust collection chamber 21 via the transparent window (transparent window cover 33 covering the window 31) acts on the deodorizing member (photocatalytic filter 41). The odor in the dust collection chamber 21 is sufficiently decomposed by the deodorizing member (photocatalytic filter 41).

  Further, at night, the light source (33d, 50), which is an ultraviolet light emitting source, emits light, so that the ultraviolet light emitted from the light source (33d, 50) is guided into the ultraviolet light emitter (42a, 57, 33a, 59). Accordingly, ultraviolet rays are emitted from the entire ultraviolet light emitters (42a, 57, 33a), and the emitted ultraviolet rays act on the deodorizing member (photocatalytic filter 41) and are collected by the deodorizing member (photocatalytic filter 41). The odor in the dust chamber 21 is sufficiently decomposed.

  Moreover, when the ultraviolet light emitters (42a, 57) are present in the window cover 33, the ultraviolet light emitters (42a, 57, 57, 57) in the window cover 33 are transferred from the transparent window (the transparent window cover 33 covering the window 31). 59), the operation state of the ultraviolet light emitters (42a, 57, 59) and the deodorizing member (photocatalytic filter 41) can be understood. Alternatively, when the window cover 33 has an ultraviolet light emitter (cover protrusion 33a), ultraviolet light is emitted from the ultraviolet light emitter (cover protrusion 33a) of the window cover 33. The operating states of the (cover protrusion 33a) and the deodorizing member (photocatalytic filter 41) can be understood.

  In the vacuum cleaner according to the embodiment of the present invention, the ultraviolet light emitter (59) is disposed along a peripheral edge of the transparent window (transparent window cover 33 covering the window 31), and the ultraviolet light is emitted. The light source that emits ultraviolet light is exposed to one end of the light emitter (59) as the first light source (60), and the second light source (61) is disposed at the other end of the ultraviolet light emitter (59). It is made to come.

  According to this configuration, when the first light source (60) and the second light source (61) are light sources that emit ultraviolet light, the amount of ultraviolet light emitted from the ultraviolet light emitter (59) can be increased. The reaction of the odor member (photocatalytic filter 41) can be promoted.

  When the first light source (60) is a light source that emits ultraviolet light and the second light source (61) is a light source that emits visible light, the transparent window (the transparent window cover 33 covering the window 31) is used. Since the visible light of the ultraviolet light emitter (59) in the window cover 33 is visible, the operating states of the ultraviolet light emitter (59) and the deodorizing member (photocatalytic filter 41) can be understood.

  Furthermore, in the vacuum cleaner according to the embodiment of the present invention, the second light source (61) is a light source capable of emitting visible light.

  According to this configuration, since the visible light emitted from the ultraviolet light emitter (59) in the window cover 33 can be seen from the transparent window (transparent window cover 33 covering the window 31), the ultraviolet light emitter has high visibility. It can be seen that (59) and the deodorizing member (photocatalytic filter 41) are operating.

Claims (10)

A dust collecting part for collecting dust, an electric blower for applying suction negative pressure to the dust collecting part, a communication air passage provided with the dust collection part and the electric blower, and a photocatalyst provided in the communication air passage A vacuum cleaner comprising a treated deodorizing member, a light source that emits ultraviolet light, and an ultraviolet light emitter that emits ultraviolet light from the light source and emits the ultraviolet light to the deodorizing member,
The vacuum cleaner, wherein the ultraviolet light emitter is formed in a shape that surrounds the deodorizing member and can be irradiated with ultraviolet light. 2. The electric vacuum cleaner according to claim 1, wherein the light source is disposed close to the ultraviolet light emitter, and ultraviolet light from the light source is guided to a deodorizing member. Machine. 3. The vacuum cleaner according to claim 1, wherein the ultraviolet light emitter is a light emitter disposed so as to surround the deodorizing member. 3. The electric vacuum cleaner according to claim 1, wherein the ultraviolet light emitter is a holding frame that holds the deodorizing member so as to surround the deodorizing member. 5. The electric vacuum cleaner according to claim 4, wherein the outer peripheral surface of the holding frame is textured. The vacuum cleaner according to any one of claims 1 to 5, wherein a transparent window is formed in a portion of the communication air passage facing the deodorizing member. The vacuum cleaner according to claim 6, wherein the ultraviolet light emitter is disposed along a peripheral edge of the transparent window, and the light source that emits ultraviolet light at one end of the ultraviolet light emitter is a first light source. And a second light source is exposed to the other end of the ultraviolet light emitter. 8. The vacuum cleaner according to claim 7, wherein the second light source is a light source capable of emitting visible light. The vacuum cleaner according to any one of claims 1 to 8, wherein the deodorizing member is arranged in a dust collection chamber in which the dust collection unit is arranged. The vacuum cleaner according to any one of claims 1 to 9, wherein the deodorizing member is a photocatalytic filter having a honeycomb structure, and the holes of the honeycomb structure are perpendicular to the extending direction of the communication air passage. A vacuum cleaner characterized in that it extends.

Images