KR100357515B1 - Vacuum Cleaner - Google Patents

Abstract

According to the present invention, the vacuum cleaner is connected to the main body having a suction passage and a discharge passage, a suction bag having a dust bag installed on the suction passage of the main body, and an impeller rotating by a high speed motor, And a connection pipe provided with a suction passage and an exhaust passage communicating with the suction passage and the discharge passage, and discharge means installed in the main body to selectively exhaust the air discharged into the discharge passage.

Description

Vacuum Cleaner

The present invention relates to a vacuum cleaner, and more particularly, to an exhaust-free vacuum cleaner that does not discharge sucked air.

A general vacuum cleaner sucks air in a part to be cleaned with a high suction force, collects and collects fine foreign matters piggybacked in the air through a dust collecting bag and an exhaust filter, and exhausts the sucked air to the outside through an exhaust port installed in the main body. .

When the vacuum cleaner is in use, bad smell is badly generated from the motor, the collected foreign material, the packing for the airtightness of the vacuum cleaner, and the discharged air is easily diffused into the house. In order to remove the odor generated from such a vacuum cleaner, a perfume is conventionally attached to the outlet side of a vacuum cleaner. However, the fragrance has a problem that can not be used for a long time because the structure is impregnated with the liquid aroma in the sponge.

In order to solve the problems described above, an exhaust-free vacuum cleaner has been developed which discharges the sucked air to the inlet side through the discharge pipe and re-suctions the discharged air with foreign matter.

Figure 1 shows an example of such an exhaust-free vacuum cleaner.

As shown in the drawing, the main body 10 having the suction passage 11 and the discharge passage 12, the dust collecting bag 13 and the high speed motor installed on the suction passage 11 of the main body 10 are shown. A suction means 14 having an impeller rotating by the suction means, and a suction passage 21 and an exhaust passage 22 which are connected to the main body 10 and communicate with the suction passage 11 and the discharge passage 12. And a brush 23 installed at an end of the tube 20 and the connecting tube 20.

The conventional vacuum cleaner configured as described above is dust-collected by dust such as dust, such as dust, through the suction path 21 of the brush 23 and the connecting pipe 20 by the motor of the suction means 14 and collected. Most of the fine dust collected in the bag 13 and not collected in the bag 13 is absorbed and collected through a motor protection filter (not shown). The inhaled air is discharged to the bottom surface of the main body 10 through the exhaust passage 12, the exhaust passage 22, and the brush 23, and the air is picked up and re-suctioned through the suction passage 21.

However, in order to clean the brush-free scoop using the exhaust-free vacuum cleaner 10 operated as described above, the tubular scoop-up suction nozzle 30 is mounted as shown in FIG. Since the air discharged into the exhaust passage 22 of the connecting pipe is directly sucked into the suction passage 21, the suction force to the gap suction nozzle 30 is low, so that the smooth cleaning is not performed.

SUMMARY OF THE INVENTION The present invention has been made in an effort to solve the above-described problems, and provides a vacuum cleaner which improves suction power by exhausting exhaust air to the rear when the suction nozzle is mounted.

1 is a perspective view schematically showing a conventional vacuum cleaner,

Figure 2 is a perspective view showing a state where the gap suction pipe is coupled to the connector,

3 is a cross-sectional view schematically showing a vacuum cleaner according to the present invention;

4 is a view schematically showing a control unit for controlling the discharge means;

5 is a perspective view schematically showing a detection means for detecting the engagement of the gap suction nozzle and the connection pipe,

<Description of the symbols for the main parts of the drawings>

31; Body 32; Dust Collector Filter

33; Suction means 33a; Motor

34; Suction passage 35; Discharge passage

40; Discharge means

In order to achieve the above object, the vacuum cleaner of the present invention includes a main body having a suction passage and a discharge passage, suction means having an impeller rotating by a dust collecting bag and a high speed motor installed on the suction passage of the main body, and It is connected to the main body includes a connection pipe provided with a suction passage and an exhaust passage in communication with the suction passage and the discharge passage, respectively, and discharge means for selectively exhausting the air discharged to the discharge passage is installed in the main body It features.

In the present invention, the discharge means includes an opening and closing door for selectively opening and closing the opening in communication with the discharge passage in the main body, an actuator for rotating the opening and closing door, and a control unit for controlling the actuator.

The control unit includes a sensing means for detecting whether the gap suction nozzle is mounted at the end of the connecting pipe, and a microprocessor for controlling the actuator by the signal sensed by the sensing means.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 shows an example of the canister cleaner 30 in the present invention.

As shown in the drawing, a suction passage 34 is provided on the main body 31, on which suction means 33 having an impeller (not shown) rotated at high speed by the dust collecting bag 32 and the motor 33a, An exhaust passage 35 is formed in communication with the suction passage 34 and through which the air sucked through the suction passage is discharged. The inlet and the outlet of the suction passage 34 and the discharge passage 35 are connected to the suction passage 36a communicating with the suction passage 34 and the exhaust passage 36b communicating with the exhaust passage 35. Combined with 36. At the end of the connecting pipe 36, a brush or a gap suction nozzle 37 is mounted. And the rear of the main body 31 is provided with a discharge means 40 for exhausting the air discharged to the exhaust passage 35 to the rear of the main body when mounting the gap suction nozzle 37 in the connecting pipe (36). The discharge means includes an opening and closing door 41 for opening and closing the opening 41a which is formed to communicate with the discharge passage 35 in the main body 31, an actuator 42 for rotating the opening and closing door 41, It includes a control unit for controlling the actuator 42. Here, the actuator 42 preferably uses a stamping motor.

As shown in FIG. 4, the control unit detects whether the gap suction nozzle 37 is mounted at the end of the connecting pipe 36 and the signal detected by the detection unit 43a. It includes a microprocessor 43b for controlling the actuator 43 by.

As shown in FIG. 5, the sensing means 43a includes a connection terminal 43c formed at a coupling portion of the gap suction nozzle 37 and a signal terminal 43d formed at an end of the connection pipe 36 and spaced a predetermined distance from each other. ). The connection terminal 43c is formed by coating a conductive layer on the inner surface of the gap suction nozzle or by mounting a conductive thin plate.

The sensing means is not limited to the above embodiment, and may be any structure as long as it can detect the engagement state of the gap indentation nozzle.

The vacuum cleaner configured as described above generates suction force by the operation of the motor 33a of the suction means 33 during operation, and foreign substances such as dust and the like are introduced through the suction path 36a of the connecting pipe 36 by the suction force. Like air sucked in, it is piggybacked and collected in the dust collecting bag 32. The sucked air is discharged through the exhaust passage (36b) of the discharge passage 34 and the connection pipe 35 through the obscure filter (not shown) of the motor 33a and then piggybacked foreign matter as described above Inhaled again.

In order to clean the narrow gap using the vacuum cleaner operated as described above, the gap suction nozzle 37 is mounted at the end of the connection pipe 36. In this case, the sensing means installed in the coupling part, that is, the connection terminal 43c and the signal terminal 43d are connected to recognize the state in which the clearance suction nozzle 37 is mounted in the connection pipe 36 by the controller. When such a signal is recognized, the actuator 42 is operated by the microprocessor 43b of the controller to open the opening 41a by rotating the opening / closing door 41.

When the motor 33a of the suction means 33 is operated in this state, the air sucked from the crevice suction nozzle 37 is exhausted through the opening after the foreign matter is filtered out by the dust protection filter outside the dust collecting bag. Therefore, the amount of air circulated to the inlet through the exhaust passage can be reduced, so that the flow input to the gap suction nozzle can be improved.

As described above, the vacuum cleaner according to the present invention can fundamentally solve the decrease in the suction force due to the exhaust air circulating when the gap suction nozzle is used, and furthermore, the vacuum cleaner has an advantage of expanding its use area.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the claims.

Claims (3)

A main body having a suction passage and a discharge passage, suction means having a dust bag installed on the suction passage of the main body, and an impeller rotating by a high-speed motor, and connected to the main body to communicate with the suction passage and the discharge passage A connection pipe provided with a suction passage and an exhaust passage, and discharge means installed in the main body to selectively exhaust air discharged into the discharge passage; And said discharging means comprises an opening / closing door for selectively opening and closing the opening communicating with said discharge passage in said main body, an actuator for rotating said opening / closing door, and a control unit for controlling said actuator. delete The method of claim 2, The control unit is a vacuum cleaner, characterized in that it comprises a sensing means for detecting whether the gap suction nozzle is mounted at the end of the connecting pipe, and the microprocessor for controlling the actuator by the signal detected by the sensing means.