JP4668147B2 - Electric vacuum cleaner - Google Patents

Description

  The present invention relates to a vacuum cleaner having means for reducing an unpleasant odor generated from dust and released to the outside of a room or the like together with exhaust at the time of start-up (operation start).

Dust collected in the dust collection part of the vacuum cleaner becomes a source of unpleasant odor, and unpleasant odor stays in the machine when the vacuum cleaner is stopped. The staying unpleasant odor is discharged out of the vacuum cleaner together with the exhaust flow when the vacuum cleaner is started. In order to reduce this unpleasant odor, the air passage (hereinafter sometimes referred to as a ventilation passage) through which the mainstream of suction air (the air flowing inside the vacuum cleaner) has ventilated, such as the exhaust port and the rear stage of the dust collection chamber, is conventionally used. The structure which mounts a deodorizing filter in is proposed. (For example, see Patent Documents 1 and 2)
The main flow indicates a main flow of the suction air, and means that it does not include a part of the wind flow that is dispersed from the main flow of the suction air due to diffusion or vortex flow.

JP-A-5-95870 (FIG. 1, paragraphs 0008 and 0010) Japanese Patent No. 3238055 (FIG. 1, FIG. 2, paragraph 0022)

  However, in the method in which the deodorizing filter is mounted in the ventilation path as described above, since the suction air volume is large, the contact time between the deodorizing filter and the exhaust air containing unpleasant odor is short and the deodorizing effect is small. Further, since the suction air passes through the deodorizing filter, there is a problem that the pressure loss increases and the dust collection efficiency decreases.

  The present invention has been made in order to solve the above-mentioned problems, and is an electric device equipped with an odor removing means that can remove an unpleasant odor emitted from dust with high efficiency and can minimize a decrease in dust collection efficiency due to pressure loss. The object is to provide a vacuum cleaner.

The vacuum cleaner according to the present invention includes a suction port portion having an inlet that is a connection port to a suction hose, a dust collection portion that communicates with the suction port portion, collects dust, and communicates with the dust collection portion. and a by sucking with the outside air suction power section for discharging to the outside, and a suction removable deodorizing unit odor generated from the collected dust by the dust collecting portion even when the suction power section is not running, The suction port portion is provided with an outlet at a position perpendicular to the inlet, and the deodorization portion is arranged so that the inlet of the suction port portion is sandwiched between one surface of the deodorization portion and the outlet opening surface of the suction port portion in a horizontal section. It is arranged and installed at a position facing the outlet of the suction port at a position that does not reach the inlet of the suction port .

  According to the present invention, since the deodorizing portion is provided on the wall surface of the air passage composed of the suction port portion, the dust collecting portion, the HEPA filter storage portion, and the suction power portion, the mainstream of the suction air passing through the air passage unlike the conventional case. There is no pressure loss caused by directly passing through the deodorizing part, and it is possible to suppress the decrease in dust collection efficiency. By removing by the portion, it is possible to prevent the unpleasant odor from staying in the cleaner, and to reduce the unpleasant odor discharged when the suction power is activated.

Embodiment 1 FIG.
FIG. 1 is a top sectional view showing Embodiment 1 of a vacuum cleaner according to the present invention, FIG. 2 is a side sectional view of the vacuum cleaner, and is an AA ′ sectional view. The vacuum cleaner body 1 includes a suction port 3 having an inlet that is a connection port with a suction hose (not shown), and an outlet having an opening that is perpendicular to the inlet and the horizontal cross section.
Two openings, an inlet and an outlet, are provided on the same surface, the inlet communicates with the outlet of the suction port 3, and a dust collecting unit 4 including a metal mesh 5 that closes the outlet;
An HEPA filter (High Efficiency Particulate) provided with an inlet communicating with the outlet of the dust collecting section 4 and an outlet having an opening surface that is perpendicular to the inlet and the horizontal cross section, and whose rear surface in the longitudinal direction covers the outlet. Air Filter) HEPA filter storage 10 for storing 7;
It comprises a suction power unit 9 that is driven by a motor to suck outside air and discharges it to the external space.
As for the HEPA filter, according to JIS Z 8122, “having a performance of having a particle collection rate of 99.97% or more with respect to particles having a rated air volume of 0.3 μm and an initial pressure loss of 245 Pa or less. The air filter according to this rule is used in the present invention. In the first embodiment, since minute dust cannot be collected in the dust collection chamber and the bad odor contained in the exhaust gas increases, it is desirable to install the HEPA filter 7 and remove the remaining dust.

The suction port 3, the dust collecting unit 4, the HEPA filter storage unit 16, and the suction power unit 9 are sequentially arranged from the upstream side of the suction air generated by the operation of the suction power unit 9 toward the leeward side, and the ventilation path through which the suction air flows. Is forming. The ventilation path may have a branching path other than the ventilation path, and the branching path may be directly connected to the HEPA filter 7 without passing through the dust collecting portion 4, but is always a pressure loss body such as a metal mesh. It shall have.
In the vacuum cleaner shown above, it is desirable that the deodorizing unit 2 is installed at a position where the main flow of the suction air does not flow so that the pressure loss of the suction air in the ventilation path does not occur during suction. For example, as shown in FIG. 1, the deodorizing unit 2 is in a position perpendicular to the opening surface of the inlet of the suction port 3 in a horizontal section, and the outlet of the suction port 3 (this outlet is perpendicular to the inlet of the suction port 3). The inlet of the suction port 3 is sandwiched between the outlet opening surface of the suction port 3 and one surface of itself (deodorizing part 2), and the suction port 3 It is installed in a detachable position at a position that does not reach the entrance. Moreover, a recessed part may be provided in the wall surface of an air path, and the deodorizing part 2 may be accommodated in this recessed part. In this case, if the deodorizing part 2 projects from the wall surface of the air passage, the projecting part hits the main flow of the exhaust flow, so that a pressure loss of the exhaust flow occurs and the suction performance deteriorates. Moreover, when one surface of the deodorizing part 2 accommodated in the recessed part is recessed from the wall surface of an air path, dust will accumulate on the recessed part and the performance of the deodorizing part 2 will be caused. Therefore, in order to eliminate such a problem, it is preferable to attach the deodorizing part 2 to a recessed part so that one surface of the deodorizing part 2 may match the height of an air channel wall surface.
In addition, if it is a position which satisfy | fills said conditions, as shown in FIG. 3 and FIG. 4 (BB 'sectional drawing of FIG. 3) not only FIG. 1 and FIG. 3 may be housed in a recess in the upper part of the air passage, or the deodorizing part 2 may be placed in a recess in the upper part of the air path of the dust collecting part 4 as shown in FIGS. As shown in FIG. 7 and FIG. 8 (DD ′ cross-sectional view of FIG. 7), any recess on the upper surface, side surface, or lower surface of the inlet (near the suction hose connection port) of the suction port 3 It may be stored in.
FIG. 9 is a diagram showing a configuration of the deodorizing unit 2 used in the electric vacuum cleaner according to the present invention. As shown in FIG. 9, the deodorizing unit 2 is fixed in a state of being housed in the case 10. The deodorizing part 12 can be detachably installed by setting the case 10 containing the deodorizing part 12 in the wall surface or recess of the air passage and fixing with a screw or a nail formed integrally with the case. . The deodorizing part 2 preferably has a corrugated shape, a honeycomb shape, a square shape, a fiber shape or the like having a large surface area, such as mesopores (small pores having a diameter of 2 to 50 nm) such as zeolite, activated carbon, silica gel, etc. Porous adsorbent having pores (small pores having a diameter of 0.2 to 0.5 nm), porous metal oxide having a pore structure centered on transition metals such as manganese oxide and titanium oxide, and platinum, palladium, etc. It is desirable to be made of paper ceramic or cordierite on which one or more kinds of noble metals are supported. The case 10 is fixed with a nail, a screw or the like so that it can be easily attached to and detached from the bottom of the suction port portion 3, and plays a role of fixing the deodorizing portion 2. The metal mesh 5 is attached so as to cover the outlet opening surface of the dust collecting portion 4.

Next, the operation of the first embodiment will be described.
In the vacuum cleaner having the configuration shown in FIG. 1, when the suction power unit 9 is started, suction air from a suction hose (not shown) sequentially flows through the suction port portion 3, the dust collection portion 4, and the HEPA filter 7 to generate suction air. Coarse dust contained therein is collected by the metal mesh 5 and accumulated in the dust collecting unit 4. The minute dust not collected by the metal mesh 5 is collected by the HEPA filter 7 and does not reach the suction power unit 9. At this time, the coarse dust accumulated in the dust collecting unit 4 includes food residue, hair, dandruff, mites adhering to these, and dead bodies thereof, and the suction power unit 9 is not in operation. Occasionally, oxidation and decomposition by microorganisms progress and generate unpleasant odors. The generation of unpleasant odors is particularly noticeable in summer and rainy season when the temperature and humidity are high. If the deodorizing unit 2 is not present, the unpleasant odor generated causes a concentration gradient of the unpleasant odor in the dust collecting unit 4 and other locations, and the deodorizing unit 2 stays in the cleaner body 1 so as to achieve concentration equilibrium. At this time, the unpleasant odor is prevented from diffusing by the metal mesh 5 or the HEPA filter 7 acting as a pressure loss body, and thus diffuses toward the suction port 3 located on the windward side where the diffusion is not hindered. The unpleasant odor that stays in this way becomes an exhaust odor when the suction power unit 9 is restarted, and is released to the outside of the vacuum cleaner, causing discomfort to the user.

  Therefore, in the vacuum cleaner of the first embodiment, the inside of the suction port portion 3 (FIGS. 1 and 2) communicating with the dust collection portion 4 and between the dust collection portion 4 and the suction port portion 3 (FIGS. 3 and 4). ) By installing the deodorizing unit 2 in the dust collecting unit 4 (FIGS. 5 and 6), the unpleasant odor from the dust diffused to the suction port 3 is adsorbed when the suction power unit 9 is not operating. Remove. Due to this deodorizing action, unpleasant odor can be prevented from staying in the vacuum cleaner main body 1, and as a result, the exhaust odor when the suction power unit 9 is restarted is reduced, thereby reducing the user's unpleasant feeling. In addition, by installing the deodorizing unit 2 at a position facing the outlet in the suction port 3, the deodorizing unit 2 is not covered with dust in the suction air, and the main flow of the suction air in the ventilation path However, since the pressure loss at the time of suction can be reduced by not ventilating the deodorizing unit 2, the deodorizing effect can be obtained without degrading the dust collection efficiency due to the increased load of the suction power unit 9 by installing the deodorizing unit 2.

  In the deodorizing part 2, it is necessary to use a material excellent in adsorption power and adsorption total capacity of ammonia, acetaldehyde, isovaleric acid and methyl disulfide, which are listed as main components of unpleasant odor discharged from household general waste. . Therefore, for these components, a filter having a large surface area, such as corrugated, honeycomb, square or fiber, which has excellent adsorption power and total adsorption capacity, is applied to mesopores such as zeolite, activated carbon, silica gel, etc. It is suitable to use for the deodorization part 2 the thing which carry | supported the porous adsorbent with a large specific surface area which has a hole. Furthermore, in order to provide catalytic action and promote the decomposition of odor components on the catalyst, porous metal oxides having a pore structure centered on transition metals such as manganese oxide and titanium oxide, and platinum and palladium It is desirable to use a material in which one or more kinds of noble metals are supported.

Next, the difference of the deodorizing performance by the difference of the deodorizing part 2 of the vacuum cleaner in this Embodiment 1 is shown.
FIG. 10 shows the concentration of acetaldehyde in the dust collecting part 4, the suction port part 3, the HEPA front part 6 and the HEPA rear part 8 when an unpleasant odor source is sucked into the vacuum cleaner without the deodorizing part 2 installed. It is a figure which shows a time change. The unpleasant odor source shown here is fibrous paper that has absorbed an acetaldehyde solution. The dust collection part 4 and the suction port part 3 communicated with each other without any obstruction have the same change in concentration over time. First, acetaldehyde is released and diffuses rapidly, causing a temporary increase in concentration, which decreases rapidly. Emission is constant, and the concentration can be confirmed to be stable when diffused. However, the HEPA front part 6 hindered by the metal mesh 5 is halved in the initial density increase relative to the dust collection part 4 and the suction port part 3, and the density after stabilization is also low. Further, almost no density fluctuation can be confirmed in the HEPA rear part 8 which is also blocked by the HEPA filter 7, and there is a tendency that the density is stable at a low density. From this, it can be seen that the shields acting as pressure loss bodies such as the metal mesh 5 and the HEPA filter 7 prevent diffusion of unpleasant odors and affect deodorization.

FIG. 11 shows a case where the deodorizing unit 2 is installed in the dust collecting unit 4, the suction port unit 3, the HEPA front unit 6 and the HEPA rear unit 8 of the HEPA filter storage unit 10, respectively, and the dust collecting unit 4 sucks an unpleasant odor source. Fig. 5 shows the change over time in the concentration of unpleasant odor that spreads and flows out to the outside. The unpleasant odor source shown here is a fibrous paper in which an acetaldehyde solution is absorbed, as in FIG. In addition, in FIG. 11, the blank has shown the time change of the amount of unpleasant odor discharge | release from a vacuum cleaner in case the deodorizing part 2 is not installed. When the deodorizing part 2 is installed in the dust collecting part 4 and the suction port part 3 where the unpleasant odor diffusion occurs most noticeably as shown in the result of FIG. 10, the adsorption of the unpleasant odor to the deodorizing part 2 is sufficiently performed. Although the release of acetaldehyde to the outside of the vacuum cleaner tends to be suppressed, diffusion of unpleasant odor is hindered in the HEPA front part 6 and the HEPA rear part 8, so that the unpleasant odor does not reach the deodorizing part 2 and sufficient deodorizing performance. Can not get.
FIG. 12 is a diagram showing a change in the suction air volume with respect to the rotation speed of the suction power unit 9 in the difference in the catalyst installation position. The position where the main flow of the suction air in the ventilation passage vents against the increase in the air volume with respect to the rotation speed when the deodorizing unit 2 is installed at the position facing the inlet of the dust collecting portion 4 where the main flow of the suction air in the ventilation passage does not vent The tendency which the increase in the air volume at the time of installing the deodorizing part 2 is suppressed can be confirmed. In particular, as the air volume increases, the effect of the difference in the catalyst installation position appears greatly. It can be seen that the reduction in the suction air amount directly leads to the reduction in the dust collection efficiency, so that it is effective to install the catalyst while avoiding the position where the main flow of the suction air in the ventilation path is vented.
FIG. 13 is a diagram showing a change in the amount of isovaleric acid adsorbed by 1 g of the deodorizing member as the specific surface area of the deodorizing unit 2 increases. With respect to the insertion amount of isovaleric acid of 28 mg, an increase in the adsorption amount accompanying an increase in the specific surface area can be confirmed, and the performance of adsorbing almost all at a specific surface area of 900 m2 / g or more is reached. Therefore, in order to obtain sufficient adsorption performance, it is necessary to use an adsorbent material having a wide specific surface area. In particular, it is desirable to use zeolite, activated carbon, silica gel or the like which is porous and has mesopores or micropores.

  As described above, the vacuum cleaner shown above has the suction power unit 9, the HEPA filter 7 provided to prevent the inflow of fine particles into the suction power unit 9, and the suction dust toward the suction power unit. In order to prevent the outflow, it is composed of a dust collecting part 4 provided inside with a metal mesh 5 provided in the suction air discharge direction, and a suction port part 3 having a deodorizing part 2 at a position opposite to the outlet. The mouth portion 3, the dust collection portion 4, the HEPA filter 7, and the suction power portion 9 are arranged in this order, and the suction port portion 3, the dust collection portion 4, the HEPA filter 7, and the suction power portion 9 form a ventilation path. The deodorizing unit 2 is installed at a position facing the outlet on the left side of the main flow of the suction air flowing from the inlet of the suction port 3 that does not allow the main flow of the wind flow in the ventilation path to vent and does not cause pressure loss during suction. Corrugated, honeycomb, square or fine Porous metal oxide with a porous structure centering on transition metals such as porous adsorbents such as zeolite, activated carbon, silica gel and other mesopores or micropores, manganese oxide titanium oxide, etc. And one or more kinds of precious metals such as platinum and palladium are carried to adsorb and remove unpleasant odors from dust diffused to the suction port 3 when the suction power unit 9 is not in operation, The unpleasant odor can be prevented from filling the vacuum cleaner main body 1 and, as a result, the exhaust odor when the suction power unit 9 is restarted is reduced. The mainstream is not vented, the pressure loss during suction can be reduced, and the installation of the deodorizing unit 2 can provide a deodorizing effect without lowering the dust collection efficiency due to an increased load on the suction power unit 9.

  As described above, according to the first embodiment, the deodorizing part is provided in the ventilation path passing between the suction port part and the dust collecting part at a position where the main stream of the suction air that has a slight effect on the air current is not directly ventilated. Therefore, by removing the unpleasant odor generated and diffused from the dust in the dust collector when the vacuum cleaner is stopped, it is possible to prevent the unpleasant odor from staying in the vacuum cleaner, and the suction power without reducing the dust collection efficiency The effect that the unpleasant odor discharged | emitted at the time of starting of can be reduced is produced.

Embodiment 2. FIG.
FIG. 14 is a top sectional view showing a second embodiment of the electric vacuum cleaner according to the present invention, and shows a case where the dust collecting bag 11 is attached to the dust collecting portion 4 of the electric vacuum cleaner described in the first embodiment. . When the dust collection bag 11 is attached to the dust collection unit 4, the dust collection bag 11 itself becomes a pressure loss body, and the inflow of dust to the suction power unit 9 is prevented. The deodorizing unit 2 communicates with the inlet of the dust bag 11 and is embedded and installed on the side surface of the ventilation path so that the main flow in the ventilation path is not vented and pressure loss at the time of suction does not reach. By comprising in this way, it becomes possible to reduce the unpleasant odor discharged | emitted at the time of starting of suction power, without reducing dust collection efficiency similarly to the vacuum cleaner of Embodiment 1. FIG.
At this time, the dust bag 11 is detachable, and adsorbent such as zeolite, silica gel and activated carbon, chemical additive, metal oxide such as manganese oxide and titanium oxide, or noble metal such as platinum and palladium, or both. By attaching and using, emission of unpleasant odor contained in the dust collected in the dust bag 11 can be reduced, and the life of the deodorizing unit 2 can be extended.

Operation | movement of the vacuum cleaner of the said structure is demonstrated.
In the vacuum cleaner having the above-described configuration, when the suction power unit 9 is operated, the suction air sequentially flows through the suction unit 3 and the dust collection unit 4 HEPA filter 7, and coarse dust contained in the suction air is blocked by the dust collection bag 11. The structure is accumulated in the dust collecting unit 4. The dust bag 11 has a volume capable of storing dust for 2 to 6 weeks in a general household. The deodorizing unit 2 absorbs an unpleasant odor emitted from the dust accumulated in the dust bag 11. However, at the same time, an unpleasant odor is attached to the dust collection bag 11, and when a sufficient amount of dust is accumulated in the dust collection bag 11, the dust collection bag 11 itself generates an unpleasant odor. It is desirable to provide a deodorizing function. For example, it is effective for a wide variety of components, it is porous, has a large specific surface area and excellent total odor adsorption capacity. It can be activated by paper, and it can handle ammonia and acetaldehyde, which are difficult to adsorb only by activated carbon. A coating with an additive is effective.
FIG. 15 shows the total amount of methyl disulfide (methyl disulfide smells of rotten cabbage) on paper and activated carbon. It can be seen from this result that the paper has no adsorption effect, whereas the activated carbon has a total adsorption capacity capable of almost adsorbing methyl disulfide released from dust for two weeks.
FIG. 16 is a diagram showing the difference in the total ammonia adsorption amount with respect to the presence or absence of a chemical additive for activated carbon and paper. As shown in FIG. 16, it can be seen that only the activated carbon does not change the amount of natural decay and hardly adsorbs. Moreover, although ammonia adsorption to some extent is recognized only with paper, the performance which can adsorb | suck the generation amount from dust for two weeks is not acquired. On the other hand, by applying a chemical additive, both activated carbon and paper can obtain the performance of adsorbing ammonia gas generated from dust for two weeks.

  As described above, according to the second embodiment, since the detachable dust collection bag is provided in the dust collection section, the emission of unpleasant odor can be reduced and the life of the deodorization section can be extended. In addition, the deodorization part communicates with the entrance of the dust bag, and the main flow in the ventilation path is not vented, so it is embedded in the side of the ventilation path so that the pressure loss during suction does not reach, reducing the dust collection efficiency. There is an effect that it is possible to reduce the unpleasant odor that is discharged when the suction power is activated without causing it.

Embodiment 3 FIG.
In the first and second embodiments, the ventilation path uses the exhaust flow from the hose. However, it is not restricted to this, You may provide an opening part in a cleaner main body, and may ventilate from there. In the third embodiment, such an embodiment will be described. FIG. 17 is a top sectional view showing Embodiment 3 of the electric vacuum cleaner according to the present invention, and FIG. 18 is a side sectional view showing Embodiment 3 of the electric vacuum cleaner according to the present invention. FIG. 19 is a perspective view showing a ventilation path composed of deodorizing section 2 and an opening according to Embodiment 3 of the present invention.

As shown in FIGS. 17-19, in this Embodiment 3, a ventilation path is provided in the direction on the opposite side to the dust collection part side of the deodorizing part 2 from the suction opening part 3 of the vacuum cleaner as described in Embodiment 1. FIG. Provided. The deodorizing part 2, the discharge electrode 15, the fan 12, and the opening part 13 are sequentially arranged from the suction port part 3 toward the outside along the ventilation path. The back side of the surface where the ventilation path of the deodorizing part 2 is installed communicates with the suction port part 3, and the fan 12 rotates to suck air from the opening part 13, so that the discharge electrode 15 and the deodorizing part 2 are connected. As a result, it is possible to allow wind to flow into the suction port portion 3. It is desirable that the opening 13 has either or both of an opening / closing function such as a pressure loss body and a valve.
Next, the operation will be described.

As shown in the vacuum cleaner having the above-described configuration, the deodorizing part 2 has a shape allowing ventilation, and the discharge electrode 15 is formed in the direction opposite to the dust collecting part 4 of the deodorizing part 2 so as not to obstruct the ventilation path. In addition, another ventilation path 17 in which the fan 12 and the opening 13 are sequentially arranged is provided. Then, when the suction power unit 9 is stopped, the fan 12 is rotated to blow air to the deodorizing unit 2 and accumulated on the surface of the deodorizing unit 2 on the dust collecting unit 4 side when the suction power unit 9 is operated. The dust that hinders the action of adsorbing the diffuse odor to the deodorizing unit 2 is blown off toward the dust collecting unit 4. Moreover, it becomes possible to decompose | disassemble and wash | clean the odor component adsorbed by the deodorizing part 2 by discharging with respect to the deodorizing part 2 from the discharge electrode 15 simultaneously with ventilation. By these actions, it is possible to extend the life of the deodorizing performance of the deodorizing unit 2. Furthermore, by having either or both of the pressure loss body and the opening / closing function in the opening 12, it is possible to prevent suction from the opening during operation of the suction power unit 9, and to suppress a decrease in the suction air volume. Become.
FIG. 20 is a diagram showing the degree of deodorization performance deterioration due to dust accumulation on the surface of the deodorizing unit 2. As shown in FIG. 20, the unpleasant odor removal performance deteriorates as the amount of dust accumulated in the deodorizing unit 2 increases. Therefore, by rotating the fan 12, air is blown from the surface facing the dust collecting unit 4 of the deodorizing unit 2 to the surface facing the dust collecting unit 4 from the surface facing the fan side. The dust accumulated on the surface of the part 2 is blown off toward the dust collecting part 4. As a result, it is possible to prevent deterioration due to dust accumulation on the deodorizing unit 2.
FIG. 21 is a graph showing the amount of carbon dioxide generated from a catalyst filter when a catalyst filter carrying zeolite and manganese oxide which are saturated by adsorbing a sufficient amount of acetaldehyde is discharged by corona discharge. Acetaldehyde is oxidized by oxygen radicals by applying corona discharge and decomposed into carbon dioxide. Therefore, an increase in the amount of carbon dioxide released from the filter means that the acetaldehyde adsorbed on the filter has been decomposed and the filter surface has been cleaned. By performing discharge with the discharge electrode 15 having discharge or the like, the life of the deodorizing unit 2 can be greatly extended.

  As described above, according to the third embodiment, the odor components adsorbed by the deodorizing part are decomposed by removing the dust accumulated on the surface of the deodorizing part by the fan and discharging with the discharge electrode having corona discharge or the like. Therefore, the effect that the lifetime of a deodorizing part can be extended significantly is produced.

It is upper surface sectional drawing (the 1) which shows Embodiment 1 of the vacuum cleaner which concerns on this invention. It is AA 'sectional drawing which shows Embodiment 1 of the vacuum cleaner which concerns on this invention. It is upper surface sectional drawing (the 2) which shows Embodiment 1 of the vacuum cleaner which concerns on this invention. It is BB 'sectional drawing (the 2) which shows Embodiment 1 of the vacuum cleaner which concerns on this invention. It is upper surface sectional drawing (the 3) which shows Embodiment 1 of the vacuum cleaner which concerns on this invention. It is CC 'sectional drawing which shows Embodiment 1 of the vacuum cleaner which concerns on this invention. It is upper surface sectional drawing (the 4) which shows Embodiment 1 of the vacuum cleaner which concerns on this invention. It is DD 'sectional drawing which shows Embodiment 1 of the vacuum cleaner which concerns on this invention. It is a perspective view which concerns on the deodorizing part 2 in Embodiment 1 of this invention. It is a figure which shows the time-dependent change of the diffusion state of the acetaldehyde density | concentration from the dust collecting part 4 in each position which does not install the deodorizing part 2 in Embodiment 1 of this invention. It is a figure which shows the discharge concentration time-dependent change of the unpleasant odor discharge | released from the dust collecting part 4 in each position which installed the deodorizing part 2 in Embodiment 1 of this invention. When the deodorizing unit 2 is installed at the position shown in Embodiment 1 of the present invention and when the deodorizing unit 2 is installed at a position where the main flow of the suction air is ventilated, the change of the suction air volume with respect to the rotation speed of the suction power unit 9 It is a figure which shows a difference. It is a figure which shows the change of the adsorption amount of isovaleric acid per deodorizing member unit weight with the increase in the specific surface area of the deodorizing part 2 in Embodiment 1 of this invention. It is upper surface sectional drawing which shows Embodiment 2 of the vacuum cleaner which concerns on this invention. It is a figure which shows the total adsorption amount of methyl disulfide with respect to paper and activated carbon. It is a figure which shows the difference of the ammonia total adsorption amount with respect to activated carbon and the presence or absence of the chemical additive of paper. It is upper surface sectional drawing which shows Embodiment 3 of the vacuum cleaner which concerns on this invention. It is side surface sectional drawing which shows Embodiment 3 of the vacuum cleaner which concerns on this invention. It is a perspective view which shows the ventilation path comprised in the deodorizing part 2 and opening part in Embodiment 3 of this invention. It is a figure which shows the deodorizing performance degradation degree by the accumulation of dust with respect to the surface of the deodorizing part. It is a figure which shows the carbon dioxide generation amount from a filter when discharging with respect to the catalyst filter which adsorbs and breaks by acetaldehyde.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body, 2 Deodorizing part, 3 Suction port part, 4 Dust collection part, 5 Metal mesh, 6 HEPA front part, 7 HEPA filter, 8 HEPA rear part, 9 Suction power part, 10 case, 11 Dust collection bag, 12 Fan, 13 opening, 14 ground electrode, 15 discharge electrode, 16 HEPA filter housing.

Claims (19)

A suction port portion having an inlet which is a connection port with the suction hose;
A dust collection part that communicates with the suction port and collects dust;
A suction power unit that communicates with the dust collecting unit and sucks the dust together with outside air and discharges the dust to the outside;
A deodorizing unit capable of adsorbing and removing odors generated from dust collected by the dust collecting unit even when the suction power unit is not operating;
The suction port includes an outlet at a position perpendicular to the inlet;
The deodorizing part is arranged in a horizontal cross section so as to sandwich the inlet of the suction port part between one surface of the deodorizing part and the outlet opening surface of the suction port part, and at the inlet of the suction port part It is installed in the position which opposes the exit of the said suction opening part in the position which does not apply, The vacuum cleaner characterized by the above-mentioned . The vacuum cleaner according to claim 1, further comprising a filter that collects dust that could not be collected by the dust collection unit in an air path between the dust collection unit and the suction power unit. The wall surface of the air passage has a recess,
The deodorizing unit, electric vacuum cleaner according to claim 1 or claim 2, characterized in that it is housed in the recess. The electric vacuum cleaner according to claim 3 , wherein one surface of the deodorizing unit has the same height as a wall surface of the air passage. The suction port portion has an inlet that is a connection port with a suction hose, and an outlet having an opening surface whose horizontal section is perpendicular to the opening surface of the inlet,
The vacuum cleaner according to any one of claims 1 to 4 , wherein the deodorizing unit is provided on a wall surface of the air passage facing the outlet. The deodorizing part is installed in a state where ventilation is possible at a position facing the outlet of the suction port part,
The suction port portion is provided in a deodorizing portion cleaning air passage that communicates the deodorizing portion and the outside in a direction opposite to the outlet, and the suction power portion is stopped at an outside air suction port of the deodorizing portion cleaning air passage. The vacuum cleaner according to any one of claims 1 to 5 , further comprising a blower mechanism that sometimes sucks outside air and ventilates the deodorizing portion and blows air toward the outlet. The suction port includes an open / close mechanism at an outside air suction port of the deodorizing unit cleaning air passage,
The vacuum cleaner according to claim 6 , wherein the opening / closing mechanism is closed when the suction power unit is in operation and is opened when the suction power unit is stopped. The suction mouth is between said deodorizing unit and the blower mechanism of the deodorizing unit cleaning air duct, according to claim 5 or claims characterized by comprising an ion emitting unit that emits ions to said deodorizing unit Item 8. The vacuum cleaner according to Item 7 . 9. The electric vacuum cleaner according to claim 8 , wherein the ion emission part uses discharge or ultraviolet light at the time of ion emission. The dust collection unit has an inlet communicating with the outlet of the suction port, and an outlet having an opening surface in the same plane as the opening surface of the inlet,
The vacuum cleaner according to any one of claims 1 to 9 , wherein the deodorizing unit is provided on an air passage wall surface perpendicular to an outlet of the dust collecting unit. The vacuum cleaner according to any one of claims 1 to 10 , wherein the dust collecting part includes a detachable dust collecting bag. 12. The electric vacuum cleaner according to claim 11 , wherein the dust collection bag includes at least one of a chemical additive and activated carbon in an inner layer. The vacuum cleaner according to any one of claims 1 to 12 , wherein a shape of the deodorizing portion has an opening such as a honeycomb shape, a corrugated shape, a square shape, or a fibrous shape. Vacuum cleaner according to any one of claims 1 to 13, wherein said deodorizing unit is a porous material having a pore structure. The vacuum cleaner according to claim 14 , wherein the deodorizing part has a mesopore or micropore structure. The vacuum cleaner according to claim 15 , wherein the deodorizing unit includes one or more of zeolite, activated carbon, and silica. The electricity according to any one of claims 1 to 13 , wherein the deodorizing part is constituted by attaching one or more kinds of chemical adsorbents that adsorb acidic, basic, and aldehydes by chemical bonds to fibers. Vacuum cleaner. The vacuum cleaner according to any one of claims 14 to 17 , wherein the deodorizing unit includes one or both of a metal oxide having a catalytic action and a noble metal. The deodorizing part is housed and fixed in a case opened on one side,
The vacuum cleaner according to any one of claims 1 to 18 , wherein the case storing the deodorizing part is detachably fixed to a predetermined position of the suction port part.

Images