JP4618060B2 - Electric vacuum cleaner - Google Patents

Description

  The present invention relates to a suction type vacuum cleaner.

Conventionally, a vacuum cleaner sucks and collects dust that has accumulated or adhered to the surface of a floor or a shelf by the operation of an electric blower and collects it in a dust collection part. The thing which added the air-cleaning function to clean inside is proposed. This is because two intake passages are provided, and cleaning and air cleaning can be performed by switching the intake passages (see, for example, Patent Document 1), or another electric blower and a dust collecting filter are incorporated in the main body of the cleaner. (For example, refer to Patent Document 2).
JP-A-1-320032 JP-A-4-352925

  However, in the above-described conventional configurations, either the use as an electric vacuum cleaner or the use as an air cleaner is switched at the user's discretion. Therefore, the user makes a judgment as to whether or not dust is floating in the room, and it may be possible to drive even if there is no floating dust in the room. It was.

  The present invention solves the above-described conventional problems, and automatically sucks floating waste only when there is floating waste, so that cleaning work can be performed in a clean environment without using wasteful energy. Another object is to provide an electric vacuum cleaner that can eliminate re-contamination of the floor surface due to the fall of suspended waste.

In order to solve the above-described conventional problems, the vacuum cleaner of the present invention sucks dust on the floor surface connected to the vacuum cleaner main body including the dust collecting portion and the electric blower for sucking dust, and the vacuum cleaner main body. A vacuum cleaner main body, a dust detection means for detecting floating dust, a second intake passage connected to the electric blower and having a shutter portion that opens and closes by an output signal of the dust detection means, A dust collecting filter provided in the second intake passage is provided , and the dust detection means includes a light emitting element and a light receiving element for detecting passing dust, and the light emitting element and the light receiving element are arranged in a traveling direction of the cleaner body. It is arranged so as to receive and emit light in a direction orthogonal to the direction .

As a result, when there is dust floating during cleaning, this is detected by the dust detection means, the shutter is opened, and the dust is automatically sucked from the second intake passage and removed by the dust collecting filter. it can. For this reason, it is possible to perform cleaning work in a clean environment without using wasteful energy, and it is possible to eliminate re-contamination of the floor surface due to the fall of floating waste. In addition, the light emitting element and the light receiving element are arranged to receive and emit light in a direction orthogonal to the traveling direction of the cleaner body, so that the space detected by the movement of the cleaner body changes at any time, and the traveling direction of the cleaner body Since the floating dust moves in the opposite direction, the floating dust moves so as to completely block the light from the light emitting element, which increases the sensitivity at the light receiving element, making it more accurate and reliable.
Can detect floating waste. Moreover, since the range of the space detected by the progress of the cleaner body is the widest, it is possible to detect a wide range of floating dust, and more accurate detection.

  The electric vacuum cleaner according to the present invention automatically performs floating waste, enables cleaning work in a clean environment without using wasted energy, and eliminates re-contamination of the floor surface due to the fall of floating waste. can do.

1st invention is equipped with the vacuum cleaner main body which incorporated the dust dust collection part and the electric blower for garbage suction, and the suction nozzle which is connected with the vacuum cleaner main body and sucks the dust of a floor, A dust detection means for detecting floating dust, a second intake passage having a shutter portion that is opened and closed by an output signal of the dust detection means and connected to an electric blower, and a dust collecting filter provided in the second intake passage The dust detection means is composed of a light emitting element and a light receiving element for detecting passing dust, and the light emitting element and the light receiving element are arranged to receive and emit light in a direction orthogonal to the traveling direction of the cleaner body . By using an electric vacuum cleaner, if there is dust floating during cleaning, this will be detected by dust detection means, the shutter will be opened, and the dust will be automatically sucked from the second intake passage. In can be removed. For this reason, it is possible to perform cleaning work in a clean environment without using wasted energy, and it is possible to eliminate re-contamination of the floor surface due to the fall of floating waste. In addition, by arranging the light emitting element and the light receiving element to receive and emit light in a direction orthogonal to the traveling direction of the cleaner body, the space detected by the movement of the cleaner body changes at any time, and the traveling direction of the cleaner body Since the floating dust moves in the opposite direction, the floating dust moves so as to completely block the light from the light emitting element, and the sensitivity at the light receiving element is increased, so that more accurate and reliable detection of floating dust is possible. it can. Moreover, since the range of the space detected by the progress of the cleaner body is the widest, it is possible to detect a wide range of floating dust, and more accurate detection.

The second invention includes a vacuum cleaner body including a dust collection part and an electric blower for suctioning dust, and a suction nozzle that is connected to the vacuum cleaner body and sucks dust on the floor surface. An outside air introduction path, a dust detection means for detecting floating dust provided in the introduction path, a second intake passage having a shutter portion that opens and closes by an output signal of the dust detection means and connected to the electric blower; and this dust filter equipped in the second intake passage is provided, the outlet of the introduction path, by a vacuum cleaner is located on the exhaust side by the electric blower, the exhaust flow wind pressure by the electric blower The resulting eject effect makes it easier for outside air around the cleaner body to be introduced into the introduction path, and a wider range of suspended dust can be detected.

A third aspect of the present invention is a vacuum cleaner body including a dust collecting part and a dust suction electric blower, a suction nozzle that is connected to the vacuum cleaner body and sucks dust on the floor, and the suction nozzle and the vacuum cleaner body A dust detection means provided in an intake passage between the second intake passage connected to the electric blower and having a shutter portion that opens and closes by an output signal of the dust detection means in the cleaner body, and a dust collecting filter provided equipped with the second intake passage, the suction nozzle, the floor installation detecting means for detecting the state lifting suction nozzle provided by the output signal of the dust detection means in the state lifting of the suction nozzle with vacuum cleaner so as to open and close the shutter, may not provide a dust detection means the cleaner body, the electric blower By utilizing the suction force can be detected dust amount was aspirated floating dust around. For this reason, air in a wider range can be sucked and detection accuracy can be improved, and a wide range of suspended waste can be collected.

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

(Embodiment 1)
FIG. 1 shows a vacuum cleaner according to Embodiment 1 of the present invention.

  As shown in the figure, the vacuum cleaner main body 1 includes an electric blower 2 for sucking dust, and a dust collecting part 4 for collecting the dust 3 provided on the upstream side and sucked by the suction force of the electric blower 2; The filter part 5 which collects the fine dust which leaked from the dust collection part 4 is incorporated. Further, a suction port 6 is provided on the upstream side of the dust collecting unit 4, and a suction hose 7, an extension pipe 8 and a suction nozzle 9 for sucking dust on the floor surface are connected. Further, an exhaust port portion 10 is provided on the downstream side of the electric blower 2, and the suction port portion 6, the dust collecting portion 4, the filter portion 5, the electric blower 2, and the exhaust port portion 10 can An intake passage 11 is formed.

  The vacuum cleaner body 1 is provided with a second intake passage 12 that connects the outside air and the intake passage 11. The second intake passage 12 has a dust collection filter 13 on the outside air side and a second intake passage 12 on the intake passage 11 side. The shutter part 14 which opens and closes the passage of the 2 ventilation paths 12 is equipped. The shutter unit 14 can be driven by an actuator (not shown) or the like. Further, a dust detector 15 for detecting dust floating in the vicinity of the cleaner body 1 is provided on the outer peripheral portion of the cleaner body 1, and an output signal of the dust detector 15 is provided in the cleaner body 1. The shutter unit 14 is opened and closed by being input to the control means 16. The vacuum cleaner main body 1 is provided with a main body lid 17 for discarding the dust 3 collected in the dust collecting unit 4, and the dust collecting unit 4 can be taken out by opening this part. Further, wheels 18 for moving the cleaner body 1 are provided on both side surfaces of the cleaner body 1, and front wheels 19 for changing the direction are provided on the bottom surface of the cleaner body 1.

  Operation | movement of the vacuum cleaner comprised as mentioned above is demonstrated.

  When the electric vacuum cleaner is operated, the electric blower 2 is operated and the suction nozzle 9 is moved along the floor surface to suck the dust on the floor surface, and the dust is collected through the extension pipe 8, the suction hose 7, and the suction port portion 6. The dust part 4 is collected. At the same time, the dust detection means 15 detects floating dust around the cleaner body 1 by the dust detection means 15. Then, an output signal from the dust detection means 15 is sent to the control means 16. For example, when a predetermined amount of dust is counted, the control means 16 controls the shutter unit 14 to be opened. When the shutter portion 14 is opened, the outside air can be sucked from the second intake passage 12 by the suction force of the electric blower 2, and dust floating around the cleaner body 1 is collected by the dust collecting filter portion 13. Can be collected.

  As described above, in the present embodiment, not only the floor surface but also the floating dust around the cleaner body 1 can be automatically collected together during the cleaning operation. Factors that hinder the health of the worker can be reduced, and it is also possible to prevent the floor surface that has been cleaned and soiled again after being cleaned due to the rising of dust.

  Also, since the amount of suspended dust is detected by the dust detection means 15 and dust collection is automatically started according to the amount, wasteful suction compared to the method that always cleans the floor and collects the atmosphere at the same time. The force is not used for collecting dust, and the floor surface can be cleaned efficiently.

  In addition, the workability is better than when manually switching between floor cleaning and atmospheric dust collection, and dust collection in the surrounding atmosphere can be performed automatically only when there is surely floating dust.

  Moreover, as a method for detecting floating dust by the dust detection means 15, an optical method is the most general, but it is not particularly limited thereto.

(Embodiment 2)
FIG. 2 shows a vacuum cleaner according to Embodiment 2 of the present invention. The same elements as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In the present embodiment, the dust detection means 15 includes a light emitting element 20 and a light receiving element 21 that detect dust when light is blocked by the passage of the dust, and the light emitting element 20 and the light receiving element 21 are the main body of the cleaner. 1 is arranged so as to receive and emit light in a direction substantially perpendicular to the traveling direction (arrow A). Others are the same as in the first embodiment.

  As described above, in the present embodiment, the arrangement of the light emitting element 20 and the light receiving element 21 constituting the dust detection means 15 is taken into consideration, and the space to be detected by the movement of the cleaner body 1 changes at any time, and the cleaner body Since the floating dust moves in the direction opposite to the traveling direction of 1, the floating dust moves so as to completely block the light from the light emitting element 20, and the sensitivity at the light receiving element 21 is increased. Reliable detection of floating waste. If dust passes obliquely with respect to the light beam, the amount of light received on the light receiving element 21 side increases due to the reflection direction of the light beam, and the detection sensitivity decreases. Moreover, since the range of the space detected by the advancement of the vacuum cleaner main body 1 is the widest, a wide range of floating dust can be detected, and more accurate detection can be performed.

(Embodiment 3)
3 and 4 show a vacuum cleaner according to Embodiment 3 of the present invention. The same elements as those in the first and second embodiments are denoted by the same reference numerals, and the description thereof is omitted.

  In the present embodiment, the cleaner body 1 is provided with an outside air introduction path 22 or 23, and the dust detection means 15 is provided in the introduction path. Others are the same as in the first and second embodiments.

  In FIG. 3, the upper opening 1 a of the cleaner body 1 is provided with an upwardly open groove to form the introduction path 22, and the light emitting element 20 and the light receiving element 21 are provided on both side walls of the introduction path 22. Further, in FIG. 4, a tunnel portion serving as a wind tunnel is provided on the upper surface portion 1 a of the cleaner body 1 to form an introduction path 23, and a light emitting element 20 and a light receiving element 21 are provided on both side walls in the introduction path 23. ing.

  As described above, in the present embodiment, the outside air introduction path 22 or 23 is provided, and the dust detection means 15 is provided in the introduction path, so that the air flow is guided to the introduction path by the movement of the cleaner body 1. , Floating dust can be reliably detected.

(Embodiment 4)
FIG. 5 shows a vacuum cleaner according to Embodiment 4 of the present invention. The same elements as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In the present embodiment, the outlet side 25 of the introduction path 24 provided with the dust detection means 15 is positioned on the exhaust side of the electric blower 2. Specifically, the outlet side 25 of the introduction passage 24 is configured to be open at a position behind the electric blower 2 in the intake passage 11 or in the vicinity of the exhaust port 10. Others are the same as in the first embodiment.

  As described above, in the present embodiment, since the position of the outlet side 25 of the introduction path 24 is taken into consideration, the outside air around the cleaner body 1 is introduced into the introduction path 24 due to the ejecting effect generated by the exhaust air flow pressure generated by the electric blower 2. This makes it easier to detect a wider range of suspended waste.

(Embodiment 5)
FIG. 6 shows a vacuum cleaner according to Embodiment 5 of the present invention. The same elements as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In this embodiment, instead of providing the dust detection means 15 in the cleaner body 1, it is provided in the intake passage (for example, the extension pipe 8) between the suction nozzle 9 and the cleaner body 1, and the floor surface of the suction nozzle 9 is provided. The floor contact detection means 26 for detecting the suction nozzle lifting state is provided on the surface in contact with the dust nozzle, and the dust detection means 15 in the lift state of the suction nozzle 9 (when it is determined that the floor installation detection means 26 is floating on the floor surface). The shutter unit 14 is opened and closed via the control means 16 according to the output signal. Others are the same as in the first embodiment.

  As described above, in the present embodiment, the dust detection means 15 is provided in the intake passage between the suction nozzle 9 and the cleaner body 1, and the floor installation detection means 26 is provided in the suction nozzle 9. It is not necessary to provide the dust detection means 15 on the side, and the amount of dust can be detected by sucking the surrounding floating dust using the suction force of the electric blower 2. For this reason, air in a wider range can be sucked and detection accuracy can be improved, and a wide range of suspended waste can be collected.

  As described above, the electric vacuum cleaner according to the present invention automatically performs floating garbage so that cleaning work can be performed in a clean environment without using wasted energy, and the floor surface due to the fall of floating garbage. Therefore, it can be applied not only to general household use, but also to vacuum cleaners for business use such as hospitals.

Sectional drawing which shows the whole structure of the vacuum cleaner in Embodiment 1 of this invention. The perspective view of the vacuum cleaner in Embodiment 2 of this invention Partial perspective view of the electric vacuum cleaner in Embodiment 3 of this invention Partial perspective view which shows the other structure of the same vacuum cleaner Sectional drawing of the vacuum cleaner in Embodiment 4 of this invention Sectional drawing which shows the whole structure of the vacuum cleaner in Embodiment 5 of this invention.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 2 Electric blower 3 Garbage 4 Dust collection part 5 Filter part 6 Suction port part 10 Exhaust port part 11 Intake passage 12 2nd intake passage 13 Dust collection filter 14 Shutter part 15 Dust detection means 16 Control means 20 Light emission Element 21 Light receiving element 22, 23, 24 Introduction path 26 Floor installation detection means

Claims (3)

A vacuum cleaner body with a built-in dust collector and an electric blower for suctioning dust;
It has a suction nozzle that is connected to the main body of the vacuum cleaner and sucks up dust on the floor,
The vacuum cleaner body has dust detection means for detecting floating dust,
A second intake passage having a shutter portion that is opened and closed by an output signal of the dust detection means and connected to the electric blower;
A dust collecting filter provided in the second intake passage;
The dust detection means is composed of a light emitting element and a light receiving element for detecting the passing dust,
A vacuum cleaner in which the light emitting element and the light receiving element are arranged to receive and emit light in a direction perpendicular to the traveling direction of the cleaner body. A vacuum cleaner body with a built-in dust collector and an electric blower for suctioning dust;
It has a suction nozzle that is connected to the main body of the vacuum cleaner and sucks up dust on the floor,
The vacuum cleaner main body has an outside air introduction path, dust detection means for detecting floating dust provided in the introduction path, and a shutter portion that opens and closes by an output signal of the dust detection means and is connected to an electric blower. 2 intake passages and a dust collecting filter provided in the second intake passage,
Vacuum cleaner the outlet of the introduction path and is positioned on the exhaust side by the electric blower. A vacuum cleaner body with a built-in dust collector and an electric blower for suctioning dust;
A suction nozzle that is connected to the vacuum cleaner body and sucks up dust on the floor;
A dust detection means provided in the intake passage between the suction nozzle and the cleaner body,
The cleaner body has a shutter part that opens and closes by an output signal of the dust detection means, a second intake passage connected to the electric blower, and a dust collecting filter provided in the second intake passage. ,
The suction nozzle is provided with floor installation detection means for detecting the suction nozzle lifting state,
Vacuum cleaner so as to open and close the shutter unit by the output signal of the dust detection means in the state lifting of the suction nozzle.