JPH0789998B2 - Vacuum cleaner - Google Patents

Description

TECHNICAL FIELD The present invention relates to an electric vacuum cleaner capable of inhaling both dust and water.

(B) Conventional technology For example, Japanese Utility Model Publication No. 41-22873 discloses an electric vacuum cleaner that sucks dust mixed with water as it is and cleans it. In addition, the air and the dust and water that have been sucked in are separated by a separation mechanism attached to the main body of the vacuum cleaner, but this separation mechanism is complicated and difficult to manufacture.

(C) Problems to be Solved by the Invention The present invention allows easy cleaning of dust containing moisture by incorporating a simple structure for separating moisture and dust from suction air. Moreover, the purpose is to obtain an electric vacuum cleaner that is inexpensive to manufacture.

(D) Means for Solving the Problems An electric vacuum cleaner of the present invention has a fan motor and a power supply mechanism built-in, a main body having an intake port on the front surface, and a suction section at the tip, and the front surface of the main body. A dust collection case that is detachably attached, a filter that is detachably attached inside the dust collection case so as to cover the intake port, and a storage body thereof.
The filter housing body is provided with a bottomed cylindrical body having a bottom plate facing the suction part, and an air passage hole is formed in the bottomed cylindrical body on a peripheral surface thereof separated from the front surface of the filter housing body. It is characterized by doing.

(E) Action Due to the rotation of the fan motor, the dust mixed with water is sucked into the dust collection case together with the suction air, collides with the bottom surface of the bottomed cylindrical body of the filter storage body, and the suction speed is reduced. It is separated and dropped into the dust collection case for storage. The suction air from which dust and water have been separated is sucked by the fan motor from the air passage hole of the bottomed cylindrical body through the filter, and is exhausted outward from the inside of the main body.

(F) Example Hereinafter, the present invention will be described by taking a hand-held electric vacuum cleaner as an example.

Reference numeral (1) is a main body case of the cleaner body (2), which is composed of a pair of left and right divided cases (1a) and (1b). ) Are formed respectively, and an intake port (6) is provided on the front wall surface (5) of the fitting receiving portion (4). A fan casing (7) communicating with the intake port (6) and a device storage chamber (8) are formed in the main body case (1) by a partition plate (9).
An exhaust port (10) is bored in both left and right side walls of the main body case (1) constituting the fan casing (7), that is, the left and right divided cases (1a) (1b). A small drainage hole (11) communicating with the fan casing (7) is formed on the bottom surface of the main body case (1). Reference numeral (12) is a fan motor, and the device storage chamber (8) is arranged so that the centrifugal fan (12a) is rotatably arranged in the fan casing (7).
It is stored inside. Reference numeral (13) is a rechargeable battery, which is stored in the device storage chamber (8) below the handle portion (3).
(14) is a power switch, the operation button (14a) of which is projected from the upper surface of the main body case (1) so that the device storage chamber (8)
It is stored inside. (15) is a power-on display light emitting diode, (16) is a printed circuit board on which a control circuit is mounted, and these are partition plates (9) located above the fan casing (7) in the equipment storage chamber (8). It is fixed on the surface.

Then, the intake air sucked into the main body (2) through the intake port (6) is discharged outside the machine through the fan casing (7) through the exhaust port (10) and does not enter the device storage chamber (8). Absent.

(17) is a moisture recovery dust case detachably attached to the front part of the main body (2), and has a fitting opening (18) fitted to the fitting receiving part (4) in the rear part and at the front. It has a tubular shape with a diameter gradually decreasing toward the inside so that it can store not only dust but also water inside, and further has a suction tube (19) at the front end. The wide suction nozzle (20) is detachably attached to the suction cylinder (19), but a suction nozzle having another shape may be attached depending on a cleaning place or the like.
A water drainage hole (21) is provided at a front end portion below the suction cylinder (19) of the dust collection case (17).
A screw-in type transparent cap (22) is detachably attached to 1). Further, (23) is a push button of a clamp device for engaging the dust collection case (17) with the main body (2), and the dust collection case (17) can be detached from the main body (2) by pressing.
(19a) is a check valve made of a synthetic rubber plate for the suction cylinder (19).

(24) is a filter for separating dust and suction air, and is composed of a member having a plate thickness obtained by chemically treating open-cell urethane foam. (25) is a filter housing to which the filter (24) is detachably mounted, and the dust collecting case (17)
A filter accommodating portion having a peripheral frame (26) shaped to fit inside, a front plate (27) covering the front, and a retaining collar (28) for retaining the filter (24) around the rear opening edge ( 29) and a bottomed cylinder that further protrudes forward from the central portion of the front plate (27), has a bottom surface (30) for collision of moisture and dust at the front end, and has an air passage hole (31) on the peripheral surface. A body (32) and a sealing tongue (33) is provided around the outer peripheral edge of the peripheral frame (26). The filter (24) is arranged so as to cover the intake port (6) by fitting the filter housing (25) through the fitting opening (18) and mounting it in the dust collection case (17). .
(34) is a holding plate of the filter (24) which protrudes radially from the bottomed cylindrical body (32) on the inner surface of the front plate (27), and also functions as a straightening plate for the intake air.

With the above configuration, when the handle portion (3) of the main body (2) is held by hand and the switch operation button (14a) is pressed, power is supplied from the rechargeable battery (13) and the light emitting diode (15) lights up. The fan motor (12) rotates at high speed. When cleaning dust mixed with water, the water and dust are sucked together with suction air from the wide suction nozzle (20). Moisture and dust sucked into the moisture recovery dust collecting case (17) collide with the bottom surface (30) of the bottomed cylindrical body (32) of the filter housing (25), the suction speed is reduced, and the suction air is separated. And falls into the dust collection case (17) to be stored. The intake air is introduced into the fan casing (7) in the main body (2) from the air passage hole (31) through the filter (24) and the intake port (6), and is exhausted out of the machine through the exhaust port (10). It Here, even if the separation on the bottom surface (30) is incomplete, the filter (24) separates water and (fine) dust, and further the water on the filter (24) is incomplete and Even if it is sucked into the fan casing (7), it does not enter the device storage chamber (8), and the fan motor (12) and battery (13)
Will not be damaged by the adhesion of water. Then, the water in the fan casing (7) is drained to the outside of the machine through the drain hole (11) by the exhaust pressure of the fan (12a). Also, the water stored in the dust collection case (17) can be confirmed with the transparent cap (22), and after the cleaner is used, the cap (22) can be removed and drained for easy draining work. Never store as stored.

To dispose of dust, press the push button (23) to remove the moisture collection dust collecting case (17) from the main body (2), remove the filter housing (25), and clean the filter by storing the filter (24). Remove from body (25). Further, when not in use, power is supplied to the rechargeable battery (13) from a charging adapter (not shown).

(G) Effect of the Invention As described above, according to the present invention, a bottomed cylindrical body having a bottom plate facing the suction portion is provided in a protruding manner in the filter housing, and the peripheral surface on the tip side of the bottomed cylindrical body. An air passage hole is drilled in.

That is, the filter housing is provided with a bottomed cylindrical body having an air passage hole on the peripheral surface separated from the front surface of the housing, so that the cleaner body is placed in an upright state with the suction portion facing upward. However, since the water surface is below the air passage hole, the water in the dust collection case does not flow out through the filter, and it has an optimal structure for cleaning dust containing water.

Further, the water and dust that have passed through the suction portion collide with the bottom plate of the bottomed tubular body and fall into the dust collection case. On the other hand, the dust that cannot be completely dropped is sucked by the air passage holes formed in the peripheral surface of the bottomed tubular body, and separated from the sucked air in the filter. Here, since the suction air collides with the bottom plate of the bottomed tubular body immediately after passing through the suction part and is sucked by the air passage holes formed in the peripheral surface of the bottomed tubular body, the suction flow path is short. Since it is simple, a strong suction force can be obtained. Therefore, it is possible to provide an electric vacuum cleaner having a strong suction force and capable of sucking both moisture and dust.

Then, since moisture and large dust collide with the bottom surface of the filter storage body and fall into the moisture collection dust collection case, it is only necessary to separate the dust that could not be completely dropped by the filter from the suction air, thus clogging the filter. Becomes difficult,
Since the number of times of cleaning the filter is reduced and dust containing water can be cleaned, the range of use of the vacuum cleaner is widened. Further, since the filter housing having a simple structure is sufficient, the manufacturing cost can be reduced.

[Brief description of drawings]

Each of the drawings shows an embodiment of the hand-held electric vacuum cleaner of the present invention. Fig. 1 is a sectional view, Fig. 2 is a perspective view, Fig. 3 is a bottom perspective view, Fig. 4 is an exploded view, and Fig. 5. [Fig. 3] is a side view of a drainage state. (6) …… Intake port, (2) …… Vacuum cleaner body, (19) ……
Suction cylinder, (17) …… Water collection dust case, (24) …… Filter, (25) …… Filter housing, (32) …… Bottomed cylinder, (31) …… Air passage hole.

Claims (1)

[Claims] 1. A main body having a fan motor and a power feeding mechanism built-in, an intake port on a front surface, a suction case at a tip, which is detachably mounted on the front surface of the main body, and the intake air. It comprises a filter detachably mounted in the dust collection case so as to cover the mouth and a storage body for the filter, and the filter storage body is provided with a bottomed cylindrical body having a bottom plate facing the suction portion. The vacuum cleaner is characterized in that an air passage hole is formed in a peripheral surface of the bottomed cylindrical body, which is separated from a front surface of the filter housing.