JPH08150102A - Vacuum cleaner - Google Patents

Abstract

PURPOSE: To prevent the intrusion of liquid drops scattered to a fan motor by forming attachably/detachably an approximately cylindrical wall body at the center of a water pan, making the water storage portion of the water pan an annular circle shape, and attaching to positions that are higher than the water surface of dust catching water, framelike flanges projecting in the outer periphery direction of the approximately cylindrical wall body. CONSTITUTION: According to a water level marker 14 administered at an approximately cylindrical wall body 6 furnished to a water pan 3 beforehand, water 9 for dust catching is poured to a designated water level, and an upper lid 4 is put on, and fixation is carried out by mounting an upper case 2 in which a fan motor 1 is housed. When the fan motor 1 is started, air containing dust is exhausted to the outside through an airintake opening 12 and an exhaust opening 11. At this time, as for the dust catching water 9 of the water surface 15 of the stop time, the dust catching water 9 of the water pan 3 inside is rotated by air intake containing dust, and by means of its centrifugal force, an outer periphery water level is raised as shown by a solid line 16 and is stabilized. In this instance, the scattering of liquid drops is generated at an air liquid contact portion in the vicinity of a discharge opening 13, and catching is carried out by means of framelike flanges 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vacuum cleaner, and more particularly to a wet electric vacuum cleaner having improved water separation efficiency.

[0002]

2. Description of the Related Art In general, a dry electric vacuum cleaner that collects dust with a filter such as paper, non-woven fabric, cloth, etc. There is known a wet type electric vacuum cleaner that contacts with and collects dust. This type of vacuum cleaner generally causes the dust-collecting water to capture the dust by bringing the intake air containing the dust into contact with the dust-collecting water at the end of the intake port arranged in the water pan. At this time, the intake air contains water. This water-containing air is separated into gas and liquid when passing through the circumferential axial slant slit of the rotary separator coaxially connected to the fan motor rotary shaft, and is scattered in the outer peripheral direction by the centrifugal force due to the rotary motion of the separator. , Returned to the water pan.

[0003]

However, since the above-mentioned conventional rotary separator is coaxially connected to the fan motor in the vicinity of the intake port and allows the intake air to pass through the narrow slit rotating at a high speed, it is considerably seen from the fan motor. It reduces the suction efficiency. Especially for recent lightweight, high-speed rotation type fan motors, the rotary separator becomes a larger load. At the start of the operation of the vacuum cleaner, the intake air discharged in the inner circumferential direction of the water pan or the rotary recirculation of the water for dust collection by the rotary separator is not stable, and the suction force of the fan motor exceeds the intake air from the intake port. It is easy to inhale water that splashes near the mouth, and this state is likely to occur even when the amount of intake air temporarily decreases while using the vacuum cleaner.

The present inventor has previously responded to these problems.
We proposed a water pan that has a circular ring shape to recirculate dust-collecting water and to separate gas and liquid using a curved air path. However, even with this type of gas-liquid separation, as high-performance fan motors are used, the number of water droplets near the contact area between the intake air and the water for dust collection increases, and this tends to lead directly to the fan motor. I understood. The present invention has been made in view of the above, and an object thereof is to provide an electric vacuum cleaner having further improved gas-liquid separation efficiency.

[0005]

SUMMARY OF THE INVENTION An electric vacuum cleaner according to the present invention for solving the above-mentioned problems and achieving the above-mentioned object is sucked by dust-collecting water previously put in a substantially cylindrical water pan. In a wet type vacuum cleaner in which an intake air containing dust is brought into contact with each other to capture dust, the contact of the intake air causes a flow of water for dust collection along an outer peripheral wall of the water pan, A substantially cylindrical wall body is provided in the center of the water pan so as to be detachable, and the water storage portion of the water pan has an annular shape, and the substantially cylindrical wall body has a position higher than the water surface of the dust collecting water. Is provided with a flange-shaped flange protruding in the outer peripheral direction of the substantially cylindrical wall body.

[0006]

In the wet type electric vacuum cleaner constructed as described above, since the substantially cylindrical wall body is arranged immediately below the fan motor intake port arranged in the central portion of the cleaner body,
Since there is no water for dust collection in the center of the water pan, and the intake air is discharged along the outer circumference of the water pan so as to positively recirculate the water for dust collection in the ring-shaped water reservoir, The dust water recirculates easily, and even if the suction power temporarily exceeds the intake volume due to the start of operation of this vacuum cleaner or the suction of curtains, etc., the splash of dust collection water is sucked into the fan motor. There is nothing to do. Further, water droplets scattered near the contact portion between the intake air containing dust and the water for collecting dust are suppressed by the flange-shaped flange,
Because it is returned to the water pan along the substantially cylindrical wall body,
Infiltration of liquid droplets into the fan motor is effectively prevented.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIG. FIG. 1 is a schematic cross-sectional view showing the main body of the wet electric vacuum cleaner with the exterior and the like omitted, and includes an upper case 2 having a fan motor 1 installed therein, a substantially cylindrical water pan (water tray) 3 and the water pan 3. It is composed of the upper lid 4. The upper case 2, the upper lid 4 and the water pan 3 are watertightly combined by a clamp (not shown).

A substantially cylindrical wall body 6 is arranged on the water pan 3 so as to rise vertically from the bottom surface of the central portion thereof, and the wall body 6 is a convex portion provided at the center of the bottom surface of the water pan 3. It is detachably attached to the post 7. The substantially cylindrical wall body 6 is provided with a flanged flange 8 which has a diameter larger than the diameter of the flanged body 6 and which protrudes in the outer circumferential direction, and the lower end of the flanged flange 8 has a dust collecting water. 9 is set at a position equal to or higher than the water surface 15 at rest (when the vacuum cleaner is not operating). The height of the substantially cylindrical wall body 6 is lower than that of the exhaust port 11 of the upper lid 4 that reaches the fan motor 1, and the upper end of the substantially cylindrical wall body 6 reaches the brim-shaped flange 8 so that the center has a convex cone shape. Has become.

By mounting the substantially cylindrical wall body 6 having the flange-shaped flange 8 on the water pan 3, the water storage portion 10 of the water pan 3 becomes substantially annular.
The water pan 3 has an intake port 12 for introducing intake air containing dust from a well-known intake port body (not shown).
Is provided, and its discharge port 13 is arranged toward one direction of the annular water storage portion 10 of the water pan 3.

When this electric vacuum cleaner is used, according to the water level marker 14 provided on the substantially cylindrical wall body 6 mounted on the water pan 3, the dust catching water 9 is added up to the designated water level, and then the upper lid 4 is closed. Preparation is completed by covering the upper case 2 with the fan motor 1 therein and fixing it with the clamp (not shown). When the fan motor 1 of this electric vacuum cleaner is stopped, the dust-collecting water 9 that keeps the flat water surface 15 as shown by the alternate long and short dash line in FIG. Since the irrigation water 9 is forced to rotate by the intake air containing dust, the outer peripheral water level slightly rises and becomes stable due to its centrifugal force, as shown by the solid line 16 in FIG. At this time, droplets are continuously scattered at the gas-liquid contact portion in the vicinity of the discharge port 13, but the droplets are contact-collected by the flange-shaped flange 8 and transmitted along the wall surface of the substantially cylindrical wall body 6 and the water pan 3 Returned to. In the figure, the flow of intake air is indicated by arrows.

[0011]

EFFECTS OF THE INVENTION Since the present invention is constructed as described above, the water in the central portion of the water pan, which is hardly useful during dust collection, is omitted, and the amount of water can be reduced with the same dust collection efficiency. Will be lighter. Further, in the type of wet cleaner that does not use a rotary separator, the flange-like flange suppresses the scattering of dust-collecting water that occurs at the gas-liquid contacting part, so that it is difficult for water to splash in the exhaust direction. The water separation efficiency is improved. On the other hand, even in a conventional wet type vacuum cleaner using a rotary separator, since the water pan has an annular shape,
Water absorption can be reduced even at the start of operation. further,
Since the substantially cylindrical wall arranged in the center of the water pan has both the function of making the water storage part annular and the function of preventing the scattering of liquid droplets, and also the structure that is detachable, Easy to clean.

[Brief description of drawings]

FIG. 1 is a schematic sectional view showing an embodiment of the present invention.

[Explanation of symbols]

 1 Fan Motor 2 Upper Case 3 Water Pan 4 Upper Lid 6 Approximately Cylindrical Wall 7 Convex Post 8 Collar Flange 9 Dust Collection Water 10 Water Reservoir 11 Exhaust Port 12 Intake Port 13 Discharge Port 14 Water Level Marker

Claims (1)

[Claims] 1. A wet type electric vacuum cleaner, in which suction air containing suctioned dust is brought into contact with dust-collecting water previously put in a substantially cylindrical water pan to capture dust, and In the water pan, a flow of water for dust collection is generated along the outer peripheral wall of the water pan, and a substantially cylindrical wall body is detachably provided in the center of the water pan, and the water storage part of the water pan is Make a ring shape,
The vacuum cleaner is characterized in that the substantially cylindrical wall body is provided with a flange-like flange projecting in an outer peripheral direction of the substantially cylindrical wall body at a position higher than a water surface of the dust collecting water.