阅读说明：本技术 集尘设备及空气调节机 (Dust collecting device and air conditioner ) 是由 中村保博 太田幸治 胜又典亮 清水彰则 于 2017-06-29 设计创作，主要内容包括：集尘设备(1)具备：框体(4),具备供空气通过的风路(3)；开卷部(7),向风路内供给膜(5),所述膜沿着横穿所述风路内的路径被输送；摩擦体(6),摩擦从开卷部送出的膜而使其带电；以及卷绕部(8),卷绕带电且配置于风路内的膜。根据本发明的集尘设备,能够提供捕集率容易恢复并且长期地不需要维护的集尘设备。(A dust collection device (1) is provided with: a frame (4) having an air passage (3) through which air passes; a unwinding unit (7) that supplies a film (5) into an air passage, the film being conveyed along a path that traverses the air passage; a friction body (6) for electrically charging the film fed from the unwinding section by friction; and a winding unit (8) for winding the charged film disposed in the air passage. According to the dust collecting apparatus of the present invention, it is possible to provide a dust collecting apparatus in which the collection rate is easily recovered and maintenance is not required for a long period of time.)

1. A dust collecting device is provided with:

a frame body having an air passage through which air passes;

a film that is transported along a path that traverses the air path by triboelectric charging;

an unwinding unit configured to supply the film into the air passage;

a rubbing member that rubs the film fed from the unwinding portion to charge the film; and

a winding portion that winds the film conveyed into the air passage.

2. The dust collecting apparatus according to claim 1,

the film supply device includes a controller that periodically executes a film exchange mode in which the film conveyed into the air passage is wound around the winding portion and the unused film is supplied from the unwinding portion into the air passage.

3. The dust collecting apparatus according to claim 2,

a particle sensor for detecting the concentration of particles to be collected in the air passing through the air passage,

the control section executes the membrane replacement mode based on the detected concentration.

4. The dust collecting apparatus according to claim 3,

the particle sensors are respectively arranged at the upstream side and the downstream side of the air path,

the control portion executes the membrane replacement mode when a trapping rate calculated from the concentration detected by each of the particulate sensors is lower than a threshold value.

5. The dust collecting apparatus according to any one of claims 1 to 4,

a partition member is provided between the air passage and the unwinding portion.

6. The dust collecting apparatus according to any one of claims 1 to 5,

the friction member includes a ground conductor disposed in contact with the film on a side opposite to the friction member with the film interposed therebetween.

7. The dust collecting apparatus according to any one of claims 1 to 6,

the film guide device is provided with a plurality of guides that guide the film so that the film passes through the air passage a plurality of times.

8. The dust collecting apparatus according to any one of claims 1 to 7, comprising:

a first film unit including a first film positively charged by friction with the friction body, an unwinding part to supply the first film, and a winding part to wind the first film; and

a second film unit including a second film negatively charged by friction with the friction body, an unwinding part supplying the second film, and a winding part winding the second film,

the first film unit and the second film unit are disposed in the air passage so that the first film and the second film face each other.

9. The dust collecting apparatus of claim 8,

the friction member includes a first friction member that rubs the first film and a second friction member that rubs the second film and has a higher tendency to be positively charged than the first friction member.

10. The dust collecting apparatus according to any one of claims 1 to 9,

and a drying mechanism for drying the film before the rubbing by the rubbing body.

11. The dust collecting apparatus according to any one of claims 1 to 10,

an air filter is provided on the downstream side of the air passage.

12. An air conditioner is provided with:

a frame body having an air passage through which air passes;

a film that is transported along a path that traverses the air path and is triboelectrically charged;

an unwinding unit configured to supply the film into the air passage;

a rubbing member that rubs the film fed from the unwinding portion to charge the film;

a winding unit that winds the charged film and conveys the charged film into the air passage; and

and a blower that generates an air flow through the air passage.

13. The air conditioner of claim 12,

the air conditioner is disposed inside a ceiling of a room.

Technical Field

The present invention relates to a dust collecting device that collects dust by generating static electricity by friction, and an air conditioner provided with the dust collecting device.

Background

As one of dust collecting devices that collect dust in air, there is an electric dust collector. The electric dust collector comprises: a charging section that performs corona discharge by applying a high voltage to the linear electrode using a high voltage power supply, and charges dust in the air by generated ions; and a dust collecting part for forming an electrostatic field by applying a high voltage between the flat plate-like electrodes by a high voltage power supply and electrostatically collecting the charged dust on the flat plate, wherein the electrostatic collecting means is configured to realize not only a low pressure loss but also an excellent dust collecting rate. In general, in an electric dust collector, if collected dust is accumulated on an electrode, electric discharge (reverse ionization) occurs in a dust layer, and dust collecting performance is degraded, so that maintenance for cleaning the electrode is generally required at intervals of several months. In addition, since the electrostatic precipitator is difficult to operate by applying a high voltage to the electrodes by a high voltage power supply, regular maintenance is also required in this respect.

On the other hand, in many cases, a dust collecting device is used together with an air conditioner such as a ventilator or an air conditioner, but in recent years, such an air conditioner is often installed at a high place in a room or on the back of a ceiling, and depending on the installation place, it is difficult for a person in charge of maintenance to approach the air conditioner. Therefore, a dust collecting apparatus with low maintenance frequency, specifically, a dust collecting apparatus that does not require maintenance for a long period of several years to ten years is desired.

Patent documents 1 and 2 describe dust collecting devices that collect dust in the air without applying a high voltage, in which electrostatic dust collection is performed by coulomb force using a dust collector that is charged by friction.

Prior patent document

Patent document

Patent document 1: japanese laid-open patent publication No. 2002-336733

Patent document 2: japanese laid-open patent publication No. 2002-

Disclosure of Invention

Problems to be solved by the invention

The friction charging type dust collecting devices of patent documents 1 and 2 have an advantage of easy handling because high voltage is not used. However, maintenance for recovering the collection rate by removing dust adhering to the dust collecting body is required whenever the collection rate is lowered due to the accumulation of dust on the dust collecting body, and it is still difficult to eliminate the need for maintenance for a long period of time.

The present invention has been made to solve the above problems, and an object thereof is to provide a dust collecting device having a long maintenance interval.

Means for solving the problems

The dust collecting device of the present invention is characterized by comprising: a frame body having an air passage through which air passes; an unwinding unit that supplies a film into the air passage, the film being conveyed along a path that traverses the air passage; a rubbing member that rubs the film fed from the unwinding portion to charge the film; and a winding portion that winds the charged film disposed in the air passage.

ADVANTAGEOUS EFFECTS OF INVENTION

The dust collecting device according to the present invention includes: a frame body having an air passage through which air passes; a film that is charged by friction and is transported along a path that traverses the air passage; an unwinding unit configured to supply the film into the air passage; a rubbing member that rubs the film fed from the unwinding portion to charge the film; and a winding portion that winds the film conveyed into the air passage, and therefore, a dust collecting device with a long maintenance interval can be provided.

Drawings

Fig. 1 is a schematic sectional view of a dust collecting device according to embodiment 1 of the present invention.

Fig. 2 is a schematic sectional view of a dust collecting device according to embodiment 2 of the present invention.

Fig. 3 is a schematic sectional view of a dust collecting device according to embodiment 3 of the present invention.

Fig. 4 is a schematic cross-sectional view of an air conditioner according to embodiment 4 of the present invention.

Fig. 5 is a diagram showing an operation flowchart of an air conditioner according to embodiment 4 of the present invention.

Fig. 6 is a diagram showing a modification of the air conditioner according to embodiment 4 of the present invention.

Fig. 7 is a schematic cross-sectional view of an air conditioner according to embodiment 5 of the present invention.

Fig. 8 is a schematic sectional view of a dust collecting device according to embodiment 6 of the present invention.

Detailed Description

Hereinafter, preferred embodiments of the dust collecting device of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals.