JP4894381B2 - Vacuum cleaner - Google Patents

Description

  The present invention relates to a vacuum cleaner, and more particularly to a dust collection box of a vacuum cleaner.

A conventional dust collection box of a vacuum cleaner has a substantially flat net filter that collects main body and waste, and a filter that collects fine dust downstream thereof (for example, Patent Document 1). reference).
JP 2005-318915 A

  In the above configuration, when dust is sucked in, the rough dust is collected in the net filter. However, the net filter is almost flat and the filter also has the same pressure loss on the entire surface. End up. For this reason, the air flow is rapidly reduced, and the dust collection box is not filled with dust, so that the air flow is reduced and the dust cannot be sufficiently sucked.

  The present invention solves the above-described problem, and is a dust collection box configured so that dust accumulated in the dust collection chamber is accumulated from a certain direction, and the air volume does not decrease until dust is sufficiently accumulated in the dust collection chamber. An object is to provide a vacuum cleaner with improved performance.

In order to solve the above-described conventional problems, the present invention provides an intake port for sucking dust-containing air, a dust collection box storage unit that is provided behind the intake port and stores a dust collection box that collects dust, and the dust collection In the vacuum cleaner provided with an electric motor blower chamber that houses an electric blower that is provided behind the box storage portion and generates suction air, the dust collection box has a communication hole that communicates with a hose inserted from the intake port. Provided is a main body part for accumulating dust, an opening part that can be opened and closed in the main body part and communicated with a suction port of the electric blower chamber in the rear, and air dust sucked into the dust collection box by driving the electric blower. anda lid portion having a filter a and filter B to remove the filter a is disposed closer to the suction port of the electric blower of the lid portion, the filter B is pre The lid is disposed on the side far from the suction port of the electric blower, and the filter A and the filter B are such that the pressure loss of the filter A is smaller than the pressure loss of the filter B. The vacuum cleaner is characterized by being formed .

  Thereby, the suction of the electric blower is sucked from the filter side having a small pressure loss among the plurality of filters having different pressure losses. Therefore, the sucked dust is also sucked into the filter side having a small pressure loss. When the filter side with a small pressure loss is clogged with dust, the dust is continuously accumulated on the filter side with the next highest pressure loss. In this way, dust is accumulated from the filter side having a small pressure loss to the filter side having a high pressure loss and accumulated in the entire main body. Thus, dust can be sufficiently accumulated in the main body.

  ADVANTAGE OF THE INVENTION According to this invention, the vacuum cleaner which does not fall an air volume until dust accumulates enough in a dust chamber can be provided.

According to a first aspect of the present invention, there is provided an intake port for sucking dust-containing air, a dust collection box storage unit for storing a dust collection box provided behind the intake port for collecting dust, and a rear of the dust collection box storage unit. In the vacuum cleaner provided with an electric motor fan chamber for storing an electric fan that generates suction air, the dust collection box is provided with a communication hole that communicates with a hose inserted from the intake port, and accumulates dust. A main body, an opening that can be opened and closed to the main body, and an opening that leads to the suction port of the electric blower chamber, and a filter A and a filter B that remove dust from the air sucked into the dust collection box by driving the electric blower anda lid portion having the filter a, the are arranged on the side closer to the suction port of the electric blower of the lid portion, the filter B is of the electric blower of the lid portion Is disposed farther from引口, the filter A and the filter B has a characteristic that the magnitude of pressure loss of the filter A is formed to be smaller than the size of the pressure loss of the filter B It was a vacuum cleaner.

Thereby, the suction of the electric blower is sucked from the filter side having a small pressure loss among the plurality of filters having different pressure losses. Therefore, the sucked dust is also sucked into the filter side having a small pressure loss. When the filter side with a small pressure loss is clogged with dust, the dust is continuously accumulated on the filter side with the next highest pressure loss. In this way, dust is accumulated from the filter side having a small pressure loss to the filter side having a high pressure loss and accumulated in the entire main body. Thus, dust can be sufficiently accumulated in the main body .

A second invention is a filter A and filter B of the first invention is formed in a pleated by pleat shape of different sizes of the filter A and filter B, size different pressure loss of the filter A and filter B Thus, the same effect as the first invention can be expected.

According to a third invention, in the first or second invention , the lid A is provided on the upstream side of the filter A and the filter B for removing dust, and holds a thin plate formed in a mesh or a porous body. A filter body A and a filter body B holding the filter B, which are provided downstream of the cover body part A and have different pressure losses, and the cover body parts A and B are respectively rotatable to the main body part of the dust collection box. In addition to the first invention, since the electric vacuum cleaner is characterized in that it is provided and formed on a concentric shaft, dust accumulated inside can be easily discharged.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments.

(Embodiment 1)
A first embodiment of the present invention will be described with reference to FIGS.

  As shown in FIGS. 1 and 2, reference numeral 1 denotes a vacuum cleaner body including a dust collection box housing 3 having an intake port 2 at the front and an electric blower chamber (not shown) having an electric blower (not shown) at the rear. The suction port 2 is provided with a vacuum cleaner main body 1 and an air tight packing A4 for a hose (not shown). The upper part of the dust collecting chamber 3 is in an open state, and has a packing B5 around the entire upper end of the open part. Reference numeral 6 denotes a dust collection box storage cover that is provided in the vacuum cleaner main body so as to be rotatable about its rear part as a fulcrum, and covers the upper opening of the dust collection box storage 3. The dust collection box storage section lid 6 has a tight rib 7 that is substantially in the same shape as the packing B5 and is in tight contact with the packing B5 when the dust collection box storage section lid 6 is closed. Yes. A dust collection box 8 is stored in the dust collection box storage unit 3. The dust collection box 8 includes a main body portion 10 provided with a communication hole 9, a lid portion A12 formed with a mesh or porous thin plate 11 at the rear of the main body portion 10, and a pleated filter downstream thereof. A lid part B14 forming A13 is rotatably held by a shaft part 15 formed in the main body part 10.

Further, as shown in FIG. 2, the lid body portion A12 and the lid body portion B14 are formed by concentric axes. The lid body part A12 and the lid body part B14 are fixed to the main body part 10 when the claw 17 of the main body part 10 is hooked on the system stop part 16 of the lid body part B14, and are in a form in use. At this time, the main body 10 and the lid B14 are airtight by the tight packing A18 formed around the outer periphery of the lid A12. The air tightness between the dust collection box 8 and the dust collection box storage section 3 is tight by the packing A4 and the main body 10 on the front side and the tight packing B19 formed on the wall of the lid body B14 and the lid dust collection box storage section 3 on the rear side. It is a thing. The tight packing A18, the tight packing B19, and the packing A4 are components used as a tight configuration, and can be configured to be tight even if they are configured as any of the components that the respective packings contact.

  Next, as shown in FIG. 3, the lid B14 is formed with a pleated filter B20 similar to the pleated filter A13. By reducing the size of the pleats of the filter B20, the filter The relationship of the magnitude of pressure loss between A13 and the filter B20 is filter A13> filter B20, and the filter A13 is provided on the side close to the suction port of the electric blower (not shown).

  About the vacuum cleaner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  As shown in FIG. 3, suction air and dust from an electric blower (not shown) pass through the air inlet 2 and the communication hole 9 and reach the main body 10. Thereafter, 23 coarse dust particles are collected by the mesh formed in the lid A12 or the thin plate 11 formed in the porous chamber. Fine dust and air pass through the thin plate 11 formed in the mesh or perforated chamber, and then the fine dust 24 is collected by the pleated filter A13 and filter B20 of the lid B14, and only the air is in the electric blower chamber ( It is discharged out of the base machine body 1 through a not-shown). As in the present embodiment, the relationship of pressure loss is such that filter A13> filter B20, so that the flow of the wind after the main body flows more to the filter B20 side with a low pressure loss (solid arrow), on the contrary, a filter with high pressure loss There is less suction air on the A13 side. (Dashed line arrow) As shown in FIG. 4, the dust sucked together with the suction wind is also sucked by this flow. Therefore, the thin plate 11 is sucked from the filter B20 side and formed in a mesh or porous structure in front of the filter B20. Dust accumulates from the side. When a lot of fine dust is accumulated in the filter B20 and the filter B20 starts to clog, a lot of wind flows to the filter A13 side, and the dust is formed on the filter A13 side mesh or in the porous plate 11 side. Are accumulated in order. In this way, by increasing the pressure loss on the filter A13 side on the suction port side of the electric blower (not shown), dust is accumulated in order from the far side to the suction port of the electric blower (not shown). The suction port side of the electric blower (not shown) is kept free of dust until the main body 10 is full, and the air volume is unlikely to decrease until the main body 10 is full of dust. It is possible to maintain a high air volume and improve performance until it is discarded. 3 and 4, the filter A13 and the filter B20 are pleated filters, and the pressure loss is changed depending on the dimensions of the pleats. However, a single plate filter can be used instead of the pleated shape, and the materials are the same. Even if they are different, the effect of the present invention can be obtained by changing the pressure loss of each filter.

(Embodiment 2)
Next, a second embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 5, the lid B14 is formed with a pleated filter B20 similar to the pleated filter A13. By reducing the size of the pleat of the filter A13, the filter A13 and The relationship of the pressure loss of the filter B20 is filter A13 <filter B20, and the filter A13 is provided on the side close to the suction port of the electric blower (not shown).

  About the vacuum cleaner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  By setting the relationship of the magnitude of the pressure loss to filter A13 <filter B20, the flow of wind after the main body 10 flows more to the filter A13 side with a low pressure loss (solid arrow), conversely to the filter B20 side with a higher pressure loss Has less suction air. (Dashed line arrow) As shown in FIG. 6, the dust sucked together with the suction air is also sucked by this flow. Therefore, the thin plate 11 is sucked from the filter A13 side and formed in a mesh or porous in front of the filter A13. Dust accumulates from the side. When a lot of fine dust accumulates in the filter A13 and the filter A13 starts to clog, a large amount of wind flows to the filter B20 side, and the dust is formed on the filter B20 side mesh or in the porous plate 11 side. Are accumulated in order. Thus, by reducing the pressure loss on the filter A13 side on the suction port side of the electric blower (not shown), dust is accumulated in order from the side closer to the suction port of the electric blower (not shown) where the pressure is highest. Therefore, the dust is gradually accumulated toward the filter B 20 side while being compressed in the main body 10. In this way, accumulation is performed while compressing dust, and the filter B20 side is kept free from dust, and the air volume is unlikely to decrease until the main body is full of dust. By accumulating dust while compressing the dust in this way, it is possible to reduce the rising of the dust when the user discards the dust, and it is possible to maintain a high air volume and improve the performance until the user discards the dust. Is. 5 and 6, the filter A13 and the filter B20 are pleated filters, and the pressure loss is changed depending on the dimensions of the pleats. However, a single plate filter can be used instead of the pleated shape, and the materials are the same. The effect of the present invention can be obtained by changing the pressure loss of each filter regardless of whether it is different or different.

  As described above, the vacuum cleaner according to the present invention can reduce the rising of the dust when the user discards the dust, and can maintain a high air volume until the user discards the dust, improving the performance. It can greatly improve performance and usability, and is particularly useful for household and business use vacuum cleaners.

Sectional drawing of the principal part of the vacuum cleaner in Embodiment 1 of this invention The main part arrow view which looked at the dust collection box of the vacuum cleaner from the A direction of FIG. The main part sectional view which cut the dust collection box of the vacuum cleaner by BB of FIG. Sectional view of the main part of the dust collection box in the other state Sectional drawing of the principal part which cut | disconnected the dust collection box of the vacuum cleaner in Embodiment 2 of this invention by BB of FIG. Sectional view of the main part of the dust collection box in the other state

2 Intake port 3 Dust collection box storage 8 Dust collection box 10 Body 11 Thin plate 12 Lid A
13 Filter A
14 Lid B (Lid)
20 Filter B

Claims (3)

An intake port for sucking dust-containing air, a dust collection box storage unit for storing a dust collection box provided behind the intake port for collecting dust, and a suction port provided at the rear of the dust collection box storage unit for generating suction air In a vacuum cleaner provided with an electric motor blower chamber that houses an electric blower, the dust collection box is provided with a communication hole that communicates with a hose inserted from the intake port, and a main body that accumulates dust, and the main body An opening that is openable and closable at the rear and communicates with the suction port of the electric blower chamber, and a lid having filter A and filter B that removes dust from the air sucked into the dust collection box by driving the electric blower. has, the filter a, the are arranged on the side closer to the suction port of the electric blower of the lid portion, the filter B is far from the suction port of the electric blower of the lid portion Is disposed, the filter A and the filter B, the electric vacuum cleaner, characterized in that the magnitude of pressure loss of the filter A is formed to be smaller than the size of the pressure loss of the filter B. The filter A and filter B are formed pleated, by the different sizes of the pleats of the filter A and filter B, according to claim 1 in which the pressure drop of the different sizes of the filter A and filter B Electric vacuum cleaner. A lid part A for holding a mesh or a porous thin plate provided on the upstream side of the filter A and the filter B for removing dust, and a pressure drop provided on the downstream side of the lid part A. And a lid portion B for holding the different filters A and B, and the lid portions A and B are rotatably provided on the main body portion of the dust collection box, and are formed on a concentric shaft. The electric vacuum cleaner according to claim 1 or 2 , wherein

Images