JP2014042696A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner which solidifies dust collected in a dust collection chamber and suppresses the dust rising and scattering when abandoning it.SOLUTION: A moisture absorbing and desorbing member 45 is placed near the center in the way that a space inside a humidity control container 44 is divided into two, and is composed of an air permeable material that allows the two spaces to communicate with each other. A wall part which forms one of the two spaces in the humidity control container 44 is communicated with a communication pipe 48, and a wall part forming the other space is placed near an outer shell face of an electric blower 30, so that it is possible to transmit heat generated by the electric blower 30 to the moisture absorbing and desorbing member 45, to generate highly humid air, to humidify dust in the dust collection chamber 35 by natural circulation, to soften fibers contained in the dust, and to easily compress the dust. That is, the dust can be made compact and solid, rising and scattering of the dust can be suppressed when abandoning the dust collected in the dust collection chamber 35.

Description

  The present invention relates to a cyclone type electric vacuum cleaner.

  2. Description of the Related Art In recent years, a so-called cyclonic vacuum cleaner, which has a swirling component in sucked air and separates and removes dust from an air stream by centrifugal force, has attracted attention. In this type of vacuum cleaner, an intake passage for allowing dust-containing air to flow from the outside into the interior, an electric blower for generating an intake flow in the intake passage, and air containing the dust that has passed through the intake passage are swirled. A swirling chamber that separates dust and air, a dust collecting chamber that collects separated dust in communication with the swirling chamber, and a compression means that compresses the dust accumulated in the dust collecting chamber are provided, and electric cleaning that reduces dust A machine has been proposed (see, for example, Patent Document 1).

  In such a cyclonic vacuum cleaner, air containing dust is separated by the suction force generated by the electric blower while swirling in the swirling chamber, and the dust moves to the dust collecting chamber and accumulates. The air passes through the swirl chamber and the dust collection chamber and is exhausted. The compression means acts to compress the dust accumulated in the dust collection chamber until the next cleaning.

JP 2002-51950 A

  However, in the conventional compressing means, there is a limit to the volume reduction of dust even if the pressurizing action of the compressing means is increased, and when the pressurizing action of the compressing means is released again, compressed dust, particularly fibers, etc. The dust collection chamber returns to its original shape so as to spring back, and the volume of dust that has been compressed in the dust collection chamber increases again. Therefore, the dust collection chamber needs to be enlarged as the dust collection chamber becomes smaller. Had problems. Further, even if the dust is pressurized by the compressing means, it does not act on the powdery fine dust, so that there is a problem that the fine dust is scattered when the dust accumulated in the dust collecting chamber is discarded.

  The present invention solves the above-described conventional problems, and provides a vacuum cleaner that suppresses dust scattering when the dust accumulated in the dust collection chamber is hardened and discarded.

In order to achieve the above object, the vacuum cleaner of the present invention comprises:
An electric blower that generates a suction force;
A dust separation unit that is installed on the upstream side of the electric blower and separates air containing dust sucked by the electric blower;
A dust collection chamber for storing the dust separated by the dust separation unit;
An opening opening in the dust collection chamber;
A humidity control container for holding and storing a moisture absorbing / releasing member disposed in the vicinity of the electric blower;
A communication pipe communicating the humidity control container and the opening of the dust collection chamber,
The moisture absorbing / releasing member is disposed in the vicinity of the center of the humidity control container so as to divide the space in the humidity control container into two spaces, and has air permeability that allows the two spaces to communicate with each other. Composed of materials,
Among the wall portions of the humidity control container that respectively form two spaces in the humidity control container, the wall portion that forms one space communicates with the communication pipe,
The wall forming the other space is arranged so as to be close to the outer surface of the electric blower.

  According to the present invention, air containing dust is separated by the dust separation unit by the suction force generated by the electric blower, and the separated dust is collected in the dust collecting chamber. And while the air of a humidity control container supplies humidity to a dust collection chamber through a communication pipe, and the air of a dust collection chamber ventilates to a humidity control container through a communication pipe, a moisture absorption / desorption member releases moisture In this case, moisture is supplied to the dust collecting chamber and the dust is humidified. Conversely, when the moisture absorbing / releasing member absorbs moisture, the dust acts to dry.

  Thus, when dust is humidified by the moisture release of the moisture absorbing / releasing member, the fibers contained in the dust are softened, and if an external force is applied in this state, the dust can be easily compressed. Further, when the dust is dried due to moisture absorption by the moisture absorbing / releasing member, the dust is solidified, and when the dust is discarded, scattering of the dust can be suppressed.

  Since the vacuum cleaner of the present invention solidifies the dust collected in the dust collection chamber, the dust collection chamber can be reduced in size, and the dust scattering can be suppressed when the dust collected in the dust collection chamber is discarded. .

External side view of the electric vacuum cleaner according to Embodiment 1 of the present invention Side sectional view of the vacuum cleaner during cleaning Main part configuration diagram during cleaning of the vacuum cleaner Plan sectional view of the secondary swirl chamber and dust collection chamber of the vacuum cleaner Side cross-sectional view after cleaning of the vacuum cleaner External perspective view of humidity control container of the vacuum cleaner Side sectional view showing the humidity control container of the electric vacuum cleaner Relationship diagram between relative humidity and moisture absorption rate of moisture absorbing / releasing member at equilibrium of the vacuum cleaner External appearance perspective view of the humidity control container of the vacuum cleaner in Embodiment 2 of this invention

The first invention is an electric blower that generates a suction force;
A dust separation unit that is installed on the upstream side of the electric blower and separates air containing dust sucked by the electric blower;
A dust collection chamber for storing the dust separated by the dust separation unit;
An opening opening in the dust collection chamber;
A humidity control container for holding and storing a moisture absorbing / releasing member disposed in the vicinity of the electric blower;
A communication pipe communicating the humidity control container and the opening of the dust collection chamber,
The moisture absorbing / releasing member is disposed in the vicinity of the center of the humidity control container so as to divide the space in the humidity control container into two spaces, and has air permeability that allows the two spaces to communicate with each other. Composed of materials,
Among the wall portions of the humidity control container that respectively form two spaces in the humidity control container, the wall portion that forms one space communicates with the communication pipe,
The wall forming the other space is arranged so as to be close to the outer surface of the electric blower.

  As a result, the air containing dust is separated by the dust separator by the suction force generated by the electric blower, and the separated dust is collected in the dust collection chamber. Then, the air in the humidity control container supplies humidity to the dust collection chamber through the communication pipe, and the air in the dust collection chamber is vented to the humidity control container through the communication pipe, so that the moisture absorption / release member releases moisture. In this case, moisture is supplied to the dust collecting chamber and the dust is humidified. Conversely, when the moisture absorbing / releasing member absorbs moisture, the dust acts to dry.

  Thus, when dust is humidified by the moisture release of the moisture absorbing / releasing member, the fibers contained in the dust are softened, and if an external force is applied in this state, the dust can be easily compressed. Moreover, when the dust is dried by the moisture absorption of the moisture absorbing / releasing member, it is hardened. Therefore, since the dust collected in the dust collection chamber is solidified, the dust collection chamber can be reduced in size, and the dust scattering can be suppressed when the dust collected in the dust collection chamber is discarded.

In a second aspect of the invention, in particular, in the first aspect of the invention, a heat receiving portion is provided on a part of the wall portion close to the outer surface of the electric blower.
Thus, when the electric blower is operated, the electric blower itself generates heat and the temperature rises, and the humidity control container that comes into contact with the electric blower also rises in temperature due to the conduction heat. Accordingly, the temperature of the moisture absorbing / releasing member contained in the humidity control container and the air around the moisture absorbing / releasing member is increased, and moisture is released from the moisture absorbing / releasing member. Thus, since the heat of the electric blower can be used without providing a special heating source, energy saving and low cost can be realized.

In the third invention, in particular, in the first or second invention, a material having good thermal conductivity is used for a part of the heat receiving portion.
Thereby, the amount of heat received from the electric blower to the humidity control means increases, and the amount of moisture released from the moisture absorbing / releasing material can be increased.

In a fourth aspect of the invention, in particular, in any one of the first to third aspects of the invention, the humidity control container is provided with an uneven portion that increases a surface area on a wall portion facing the outer surface of the electric blower, and the uneven portion The part is arranged so as to face the exhaust air passage through which the exhaust from the electric blower flows.
Thereby, since the heat receiving area from the exhaust of the electric blower increases, the temperature rise inside the humidity control container can be increased, and the moisture release amount from the moisture absorption / release member can be increased.

(Embodiment 1)
The vacuum cleaner in Embodiment 1 of this invention is demonstrated using FIGS. FIG. 1 is an external view of a vacuum cleaner showing Embodiment 1 of the present invention, FIG. 2 is a side sectional view of the vacuum cleaner during cleaning, and FIG. 3 is a main part configuration diagram of the vacuum cleaner during cleaning, 4 is a plan sectional view of the secondary swirl chamber and dust collection chamber of the vacuum cleaner, FIG. 5 is a side sectional view of the vacuum cleaner after cleaning, and FIG. 6 is an external view of the humidity control container of the vacuum cleaner. FIG. 7 is a side sectional view showing the humidity control container of the electric vacuum cleaner, and FIG. 8 is a relationship diagram between the relative humidity and the moisture absorption rate of the moisture absorbing / releasing member when the electric vacuum cleaner is in equilibrium.

  As shown in FIG. 1, wheels 22 and casters 23 are attached to the outside of the cleaner body 21, and the cleaner body 21 can freely move on the floor surface. An extension pipe 28 having a suction hose 26 and a handle 27 is sequentially connected to the suction port 25 provided below the dust collection case 24 installation portion, and a suction tool 29 is attached to the tip of the extension pipe 28. Yes.

  As shown in FIGS. 1 and 2, the dust collecting case 24 is detachably attached to the cleaner body 21 containing the electric blower 30 and is inclined at an angle of about 45 ° with respect to the horizontal. 21, the suction port 31 on the inlet side of the dust collection case 24 communicates with a suction path 32 that opens the suction port 25, and the discharge port 33 on the outlet side of the dust collection case 24 communicates with the electric blower 30. .

  As shown in FIGS. 3 and 4, the dust collection case 24 is a cylindrical primary swirl chamber 34 (dust separation unit) that takes in air containing dust and generates a swirling airflow, and a substantially cylindrical 2 located below the cylindrical swirl chamber 34. A rectangular parallelepiped dust collecting chamber 35 that is configured by the next swirl chamber 39 (dust separating portion) and stores dust is positioned below the swirl chamber 39 (dust separating portion).

The primary swirl chamber 34 is provided with an intake port 31 opened so as to be tangential to the inner peripheral surface of the cylindrical outer shape, and a cylindrical exhaust tube 36 communicating with the discharge port 33 at the center. Yes. A ventilation portion 37 is formed by a filtration filter such as a mesh filter or an etching filter on the outer peripheral side wall of the exhaust pipe 36 to prevent coarse dust from passing through the exhaust pipe 36. In addition, a non-woven fabric filter folded in a pleat shape is disposed as the second dust separating means 38 between the exhaust tube 36 and the discharge port 33. The dust collection chamber 35 is disposed below the primary swirl chamber 34 at positions where the respective central axes are shifted in parallel to the horizontal direction so as to communicate with the secondary swirl chamber.

  An opening 41 is opened on the ceiling surface of the dust collection chamber 35. The opening 41 is located at a position where it overlaps with the compression plate 43. When the compression plate 43 is biased by a spring and located at the upper portion, the opening 41 is closed, and the air between the humidity control container 44 and the dust collection chamber is closed. I try not to go in and out.

  As shown in FIGS. 3 and 4, the dust inflow port 40 to the dust collecting chamber 35 is formed on the upstream side of the swirling airflow of the wall 39 a that separates the secondary swirling chamber 39 and the dust collecting chamber 35. A part of the arcuate wall portion of the secondary swirl chamber 39 is extended in the tangential direction of the arc of the secondary swirl chamber 39 to form an introduction side wall portion 39b, and the opening range of the inflow port 40 is extended to the introduction side wall portion. The inflow path is configured by expanding.

  As shown in FIG. 5, the compression means 42 is provided with a flat compression plate 43 that moves up and down in the dust collecting chamber 35, is manually lowered, and is raised by a spring (not shown). The compression plate 43 sets a gap (for example, 1 to 3 mm) between the compression plate 43 and the dust collection chamber 35 that does not rub against the dust collection chamber 35 and on which the dust accumulated during compression does not escape.

  Moreover, the electric blower 30 is attached to the outer peripheral support member and the bottom support member through the elastic member such as rubber and sponge between the vacuum cleaner body 21 and the electric blower 30.

  Further, the electric blower 30 is covered with the electric blower case 55 at intervals over the entire circumference of the electric blower 30, and the high-temperature exhaust air that has cooled the heat generated by the rotation operation of the electric blower 30 is the electric blower case 55. It passes through the inside and is discharged out of the cleaner body 21.

  The humidity control container 44 has a humidity control port 44a at the end close to the dust collection chamber 35. The opening 41 of the dust collection chamber 35 and the humidity control port 44a of the humidity control container 44 have a circle with an elbow. They are connected by a single communication pipe 48 in cross section.

Next, the detailed structure of the humidity control container 44 is demonstrated using FIGS.
FIG. 6 is an external perspective view of the humidity control container 44 of the electric vacuum cleaner according to Embodiment 1 of the present invention, and FIG. 7 is a side sectional view showing the humidity control container of the electric vacuum cleaner.

  As shown in FIG. 6, the humidity control container 44 is divided into a container main body 44b and a container lid 44c and assembled in a sealed state. A humidity control port 44 a that communicates with a communication pipe 48 that communicates with the dust collection chamber 35 is formed in the container lid 44 c.

  In addition, as shown in FIG. 7, a moisture absorbing / releasing member 45 (for example, repeatedly absorbing and releasing moisture according to the surrounding humidity) so as to divide the internal space into two parts near the center in the humidity control container 44. Type).

  As shown in FIGS. 5 and 7, one space close to the dust collection chamber 35 is formed by a wall portion A51, and this space communicates with the communication pipe 48 via the humidity control port 44a. The wall portion B52 forming the space is fixed to the outer surface of the electric blower 30 so that the heat of the electric blower 30 is directly transmitted to the humidity control container 44.

  Further, since the humidity control container 44 is disposed on the exhaust air passage 50 of the electric blower 30 so as to receive the exhaust heat from the outer surface of the humidity control container 44, the humidity control container 44 is disposed during the operation of the electric blower 30. The temperature can be raised at a stretch.

  2 and 7, when the dust collecting case 24 is attached to the cleaner body 21, the communication pipe 48 and the humidity control port 44a communicate with each other. The container main body 44b is formed with a heat receiving portion 46 which is in contact with and fixed to the outer surface of the electric blower 30 on the opposite side of the humidity control port 44a, and a heat conducting member 47 formed of an aluminum plate is fitted and bonded thereto. Therefore, the heat conducting member 47 comes into contact with the outer surface of the electric blower 30 and receives heat.

  The moisture absorbing / releasing member 45 has a substantially honeycomb structure (or corrugated structure) carrying a polymer moisture absorbing / releasing material. For example, 5 g of tuftic manufactured by Nippon Exlan Industry Co., Ltd. is used as the polymer moisture-absorbing / releasing material, and the relative humidity and moisture absorption rate are approximately in direct proportion. In addition, for example, a honeycomb having a pitch of 1 to 3 mm and a height of 1 to 3 mm is used.

By installing the moisture absorbing / releasing member 45 at substantially the center in the humidity controlling container 44, the humidity controlling container 44 is divided into a dust collection chamber side space and an electric blower side space. Is installed in such a direction that the ventilation direction connects the dust collection chamber side space and the electric blower side space.
The electric blower 30 and the heat conduction member 47 may be in close contact with each other via a heat conductor such as thermal grease or a heat conduction sheet.

Operation | movement of the vacuum cleaner comprised as mentioned above is demonstrated.
First, as shown in FIG. 1, the dust on the floor surface of the house is sucked from the suction tool 29 by the suction action generated by the electric blower 30, and the dust collecting case 24 passes through the suction hose 26 and the extension pipe 28. Air containing dust is introduced, the dust is centrifuged, and fine dust is filtered and collected. The filtered air is exhausted from an exhaust outlet (not shown) downstream of the electric blower 30 (a cyclonic vacuum cleaner).

  Next, the operation of the dust collecting case 24 will be described with reference to FIGS. First, the spring of the compression means 42 raises the compression plate 43 and stores it in the upper part of the dust collecting chamber 35. And the air containing the dust which flowed in from the air inlet 31 by the suction action of the electric blower 30 is ejected tangentially from the air inlet 31 to the primary swirl chamber 34 and slightly swirls around the exhaust pipe 36 and immediately turns into the primary swirl. It flows into the secondary swirl chamber 39 located below the chamber 34. Thereafter, the air that has flowed into the secondary swirl chamber 39 flows through the substantial center of the secondary swirl chamber 39 and the primary swirl chamber 34 to the ventilation portion 37.

  In particular, as shown in FIG. 4, the primary swirl chamber 34 and the dust collection chamber 35 are in a state of being shifted in parallel, but in the secondary swirl chamber 39, the swirling air reaches the upstream end of the wall 39a. Then, since the direction suddenly changes along the wall 39a, the dust contained in the air cannot go about the air that changes the direction, and jumps into the dust collecting chamber 35 from the inlet 40 due to the inertial force of the dust itself. .

  At that time, the swirling air flows along the outer peripheral side wall of the secondary swirl chamber 39, but the amount is small due to a slight dynamic pressure on the inlet 40, centrifugal force to the air, etc., but a part of the swirling air flows. It flows into the dust collecting chamber 35 from the inlet 40. In the dust collection chamber 35, the air immediately decelerates and slowly swirls in the dust collection chamber 35, and returns from the inlet 40 to the secondary swirl chamber 39. The dust flowing into the dust collection chamber 35 does not return to the secondary swirl chamber 39 from the inlet 40 due to the slowly swirling air, but is separated from the air by its own weight, and is usually fine dust from the bottom on the bottom of the dust collecting chamber 35. (Soil, sand, etc.) and coarse dust (cotton dust, etc.).

On the other hand, the dust that has not jumped into the dust collection chamber 35 is blocked by the ventilation portion 37, and again enters the centrifugal swirl airflow. Thereafter, the swirling air from which the dust has been separated returns from the center of the secondary swirl chamber 39 to the primary swirl chamber 34 and is exhausted from the vent 37 to the outside.

  On the other hand, the dust that has not jumped into the dust collecting chamber 35 is blocked by the ventilation portion 37, is again caught in the centrifugal swirl air, eventually jumps into the dust collecting chamber 35 from the inlet 20, and accumulates on the bottom surface of the dust collecting chamber 35.

  Thereafter, the swirling air from which the dust has been separated returns from the center of the secondary swirl chamber 39 to the primary swirl chamber 34 and is exhausted from the vent 37 to the outside. On the other hand, the dust that has not jumped into the dust collecting chamber 35 is blocked by the ventilation portion 37, is again caught in the centrifugal swirl air, eventually jumps into the dust collecting chamber 35 from the inlet 20, and accumulates on the bottom surface of the dust collecting chamber 35.

  Further, the air slowly turns in the dust collection chamber 35. In addition, air containing fine dust such as lint passes through the ventilation portion 37, but the fine dust is filtered by the second dust separation means 38, and the clean air passes through the second dust separation means 38. Then, the electric blower 30 is guided.

  At the same time, the electric blower 30 is deducted from room temperature by a temperature action of about 18K due to a cooling action by the passing air and a heating action by a temperature rise of a built-in motor (not shown). And the temperature of the humidity control container 44 wall surface closely_contact | adhered to the electric blower 30, the air of the inside, and the moisture absorption / release member 45 is raised.

  When the cleaning is completed, the electric blower 30 is stopped and the compression means 42 manually lowers the compression plate 43 to compress the dust accumulated in the dust collecting chamber 35 as shown in FIGS. Make it compact. At that time, the opening 41 is opened.

The electric blower 30 is no longer cooled by the passing air, and further rises in temperature by about 9K due to the residual heat (heat capacity) of the motor built in the electric blower 30. That is, the electric blower 30 continues to rise in temperature by about 18K or more for about one hour after the cleaning is completed.
Similarly, the humidity control container 44 is heated from the electric blower 30 and the temperature rises from about 24 ° C. to about 51 ° C.

  As shown in FIG. 8, the relative humidity around the moisture absorbing / releasing member 45 is reduced from 60% to 14% due to the temperature rise, and 2.4 g (10 g × 24) of steam with a difference of 24% from a moisture absorption rate of 48% to 14%. %) Is dehumidified. However, in actuality, it takes time for the moisture absorption / release member 45 to release moisture, and the vapor that has been released accumulates around the moisture absorption / release member 45. Since the relative humidity around the wet member 45 is not maintained at 14% and immediately rises, the hygroscopic member 45 releases 0.3 to 0.6 g according to normal experiments.

  When the inner surface temperature of the heat conducting member 47 rises quickly, natural convection occurs in the humidity control container 44 due to the difference from the ambient temperature as shown by the arrow in FIG. 7, and the raised air (solid arrow) is the moisture absorbing / releasing member. 45 passes through the inside of the humidity control port 44a and the communication pipe 48 as shown in FIG. At this time, the humid air generated from the moisture absorbing / releasing member 45 is conveyed to the dust collecting chamber 35.

  On the other hand, when a flow for discharging air from the humidity control container 44 is generated, a flow is generated from the pressure balance toward the humidity control container 44 through the communication pipe 48 (broken arrow). Then, the air in the dust collecting chamber 35 is guided to the humidity control container 44 and is heated again by the heat conducting member 47 and rises. At this time, the relative humidity of the dust collecting chamber 35 is increased by about 80 to 95%, and the temperature is increased by about 1 to 5K.

Next, high-humidity air accumulates in the dust collection chamber 35 through the gap between the dust collection chamber 35 and the compression plate 43 and humidifies the dust 3 g (standard daily dust) compressed in the compression plate 43. As a result, the dust absorbs about 0.1 g to 0.3 g over time from the high humidity air that permeates through the gap between the dust itself, so that the coarse dust (cotton dust etc.) is soft and easily deformed and has compressibility. The improved, deformed and elongated coarse dust is entangled with each other. Therefore, even if the compression means 42 is released, the compressed dust hardly returns to its original volume.

  On the other hand, fine dust (mud, sand, etc.) increases in weight and softens when it absorbs moisture, bonds with each other, and becomes entangled with the deformed coarse dust. In addition, once high-humidity air enters the dust collection chamber 35, a part of the air escapes from the inlet 40 to the secondary swirl chamber 39, but the dust collected in the dust collection chamber 35 and compressed by the compression plate 43 is still sufficient. Can absorb moisture.

  In addition, when the bottom cover of the dust collecting chamber 35 was opened in order to discard the compressed dust accumulated in the dust collecting chamber 35, the heavy fine dust accumulated in the bottom fell straight and was compressed on the top. Since the coarse dust falls, there is an effect that the scattering of dust can be suppressed.

  Then, the air whose humidity and temperature are lowered by applying humidity to the dust is pushed out of the dust collection chamber 35 and returns to the humidity control container 44 through the communication pipe 48 again, receives the humidity from the tuftic and receives the dust. Head to 35.

  When two hours or more have elapsed after the cleaning is completed, the temperature of the electric blower 30 and the humidity control container 44 is reduced to near room temperature due to heat radiation to the atmosphere. At that time, the moisture absorbing / releasing member 45 switches from the moisture releasing action to the moisture absorbing action of taking moisture away from the air in the dust collecting chamber 35 and the dust collecting case 24, and recovers to the original moisture absorbing state over time (approximately one day). Therefore, a water tank for moisture release is unnecessary.

At that time, moisture is also removed from the compressed dust and dried, but once the coarse dust is deformed, it is difficult to return to its original state like ironing, and the fine dust is tightened as hard as mud.
As a result, a large amount of dust can be stored in the dust collecting chamber 35 (the dust collecting chamber 35 can be made compact), and when the compressed dust collected in the dust collecting chamber 35 is discarded by opening the bottom cover, There is an effect that scattering is suppressed.

  In addition, since the compressed dust is repeatedly absorbed and released every time it is cleaned, the moisture content of the dust is not significantly increased, the growth of bacteria, mold, etc. is suppressed, and the generation of odors can be prevented. It is possible to make it difficult for dust to adhere to the dust collection chamber 35. At this time, a part of the moisture that escapes from the dust passes through the communication pipe 48 and is absorbed by the moisture absorbing / releasing member 45. The time required for moisture absorption of the moisture absorbing / releasing member 45 is considered to be sufficient since it is until the next cleaning, that is, about one day.

  In this way, the humidity is humidified in the dust collection chamber 35 where the air flow is relatively slow, so that it can be supplied to the dust without being exhausted, and the highly humid air can be reliably sent to the dust. . Moreover, since the moisture absorption / desorption member 45 releases humidity by the heat of the electric blower 30 and the humidity is supplied from the air after the electric blower 30 is cooled, a power source for heating the moisture absorption / desorption member 45 becomes unnecessary, In addition, it is not necessary to supply water.

  As described above, after the electric blower 30 is stopped, the dust accumulated in the compression means 42 is compressed and humidified by the moisture absorbing / releasing member 45, so that the coarse dust is easily deformed and the compressibility is improved. In addition, the deformed and extended coarse dust is entangled, and even if the compression means 42 is released, the volume of the compressed dust is hardly restored. As a result, the dust collection chamber 35 can be greatly reduced in size by improving the dust compressibility, and dust can be prevented from being scattered when the accumulated dust is discarded.

Moreover, since the heat conduction member 47 is used to transmit heat using the heat of the electric blower 30 to heat the moisture absorbing / releasing material, a sufficient amount of heat can be obtained without providing a special heating source, Energy saving and low cost can be realized. In addition, since the exhaust heat of the electric blower 30 is configured to flow to the outer surface of the humidity control container 44, the humidity control container 44 is also heated by the exhaust, so that a sufficient moisture release amount can be obtained.

(Embodiment 2)
The electric vacuum cleaner in Embodiment 2 of this invention is demonstrated.
FIG. 9 is an external perspective view of the humidity control container of the electric vacuum cleaner showing the second embodiment of the present invention. Hereinafter, the same parts as those of the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

  The difference from the first embodiment is that a concavo-convex portion 54 is provided on the wall B52 (on the electric blower 30 side) on the back surface of the container main body 44b of the humidity control container 44. The surface area on the outer and inner sides of the container main body 44b is increased by the uneven portion 54, and when the exhaust from the electric blower 30 passes through the surface of the humidity control container 44, the area that receives the exhaust heat is expanded to increase the amount of heat received. At the same time, natural convection generated on the inner surface of the warmed container main body 44b can be promoted.

  As a result, the rise in the air temperature in the humidity control container 44 is accelerated, the moisture release from the moisture absorbing / releasing member 45 is accelerated, and the moisture release amount can be increased, so that the effect of dust compression / solidification can be further enhanced. .

  In addition, although the humidity control container 44 of Embodiment 2 provided the uneven | corrugated | grooved part in one surface of wall part B52 of a back surface, if an uneven | corrugated | grooved part is provided in another surface if it is a surface where the exhaust of the electric blower 30 acts, it will be further. The effect can be enhanced. The same effect can be expected even when, for example, 20 g of high silica zeolite DDZ (manufactured by Showa Co., Ltd.) having a relative humidity of about 10% or less is used as the moisture absorbing / releasing member 45. Further, as the moisture absorbing / releasing member 45, about 20 g of silica gel (a moisture absorbing / releasing member of a type in which the relative humidity and the moisture absorption rate are approximately in direct proportion) may be used.

  As described above, the electric vacuum cleaner according to the present invention includes the compression unit that compresses the dust in the dust collection chamber and the moisture absorbing / releasing member that generates high-humidity air. Before and after compressing the dust, the moisture absorption and desorption member supplies high-humidity air to the dust collection chamber, improving the compressibility of the dust collected in the dust collection chamber, and the behavior of the dust when the compressed dust is discarded. Since scattering can be suppressed, it is possible to provide a clean and easy-to-use vacuum cleaner that can be easily discarded in a trash can, and can be applied to a commercial dust collector.

30 Electric blower 34 Primary swirl chamber (dust separation part)
39 Secondary swirl chamber (dust separation part)
35 Dust collection chamber 41 Opening 44 Humidity control container 44b Container body 44c Container lid 45 Moisture absorbing / releasing member 46 Heat receiving part 47 Heat conducting member (material with good thermal conductivity)
48 Communication pipe 50 Exhaust air duct 51 Wall A
52 Wall B
54 Irregularities

Claims (4)

An electric blower that generates a suction force;
A dust separation unit that is installed on the upstream side of the electric blower and separates air containing dust sucked by the electric blower;
A dust collection chamber for storing the dust separated by the dust separation unit;
An opening opening in the dust collection chamber;
A humidity control container for holding and storing a moisture absorbing / releasing member disposed in the vicinity of the electric blower;
A communication pipe communicating the humidity control container and the opening of the dust collection chamber,
The moisture absorbing / releasing member is disposed in the vicinity of the center of the humidity control container so as to divide the space in the humidity control container into two spaces, and has air permeability that allows the two spaces to communicate with each other. Composed of materials,
Among the wall portions of the humidity control container that respectively form two spaces in the humidity control container, the wall portion that forms one space communicates with the communication pipe,
The vacuum cleaner arranged such that the wall portion forming the other space is close to the outer surface of the electric blower. The vacuum cleaner of Claim 1 which provided the heat receiving part in a part of said wall part which adjoins the outer surface of the said electric blower. The electric vacuum cleaner according to claim 1 or 2, wherein a material having good thermal conductivity is used for a part of the heat receiving portion. The humidity control container is provided with a concavo-convex portion for increasing a surface area on a wall portion facing the outer surface of the electric blower, and the concavo-convex portion is disposed so as to face an exhaust air passage through which exhaust from the electric blower flows. The vacuum cleaner according to any one of claims 1 to 3.