WO2015190119A1

WO2015190119A1 - Ion detector and electric apparatus provided with same

Info

Publication number: WO2015190119A1
Application number: PCT/JP2015/050514
Authority: WO
Inventors: 康孝片岡; 上栫　秀夫
Original assignee: シャープ株式会社
Priority date: 2014-06-13
Filing date: 2015-01-09
Publication date: 2015-12-17
Also published as: CN206114584U; JPWO2015190119A1; JP6479791B2

Abstract

Provided is an ion detector, which is capable of protecting an ion detection unit with a simpler configuration, and is capable of adjusting sensitivity with a reduced cost. The ion detector is provided with an ion detection unit (2a) that is disposed such that the ion detection unit is exposed to an air passage where ions are circulated, and a protection unit (3) that covers the ion detection unit (2a) side exposed to the air passage, and the protection unit (3) is a sheet formed of a mesh material.

Description

Ion detector and electric device equipped with the same

The present invention relates to an ion detector that detects ions, and an electrical device including the same.

Recently, an increasing number of electric appliances have a function of generating ions and releasing the ions to the outside by blowing air for air purification such as sterilization and deodorization in the air. In an electrical apparatus having such a function, it is desirable that the presence or absence of ion generation and the generation amount can be grasped. The ion detector used for such a purpose attracts positive ions or negative ions to a collecting electrode (detection electrode, collection electrode, ion sensor) that is an ion detection unit, and changes the potential caused by the attracted ions. Many have a mechanism to measure the amount of ions. If this ion detector (or ion detector) is not generated and is exposed to the air passage without being protected, dust may adhere depending on the installation location and operating conditions of the electrical equipment. In that case, the detection sensitivity (detection accuracy) of ions may be lowered or disabled.

Therefore, for example, as disclosed in

Patent Documents

1 and 2, by providing an openable / closable cover around the ion detector, it is prevented from being exposed to the airflow path, or for example, bypassed to the airflow path as in Patent Document 3. The ion detector is installed on the bypass path, and adhesion of dust and the like is suppressed.

Japanese Patent Publication “Japanese Patent Laid-Open No. 2011-228075 (published on November 10, 2011)” Japanese Patent Publication “Japanese Patent Laid-Open No. 2011-220807 (published on November 4, 2011)” Japanese Patent Publication “Japanese Patent Laid-Open No. 2012-112746 (released on June 14, 2012)”

However, providing a cover or bypass that can be opened and closed by the drive unit increases the complexity and size of the device and increases the cost. Furthermore, the current collecting electrode has been adjusted for sensitivity by optimizing the size of each electric device equipped with the ion generator to be attached. It takes.

Then, this invention is made | formed in view of the said subject, and it aims at providing an ion detector which can protect an ion detection part with a simpler structure, can reduce sensitivity, and an electric device provided with the same. To do.

In order to solve the above problems, an ion detector according to an aspect of the present invention includes an ion detector that is exposed and arranged in an air passage through which ions flow, and the ion detector to the air passage. And a protective part covering the exposed side, wherein the protective part is formed of a mesh material or a perforated material having a plurality of through holes.

According to the above configuration, the exposed side of the ion detection unit to the air passage is covered with a simple configuration of a protection unit at least part of which is formed of a mesh material or a perforated material having a plurality of through holes. Since a part of the protective part is a mesh material or a perforated material having a plurality of through holes, ions can be reliably detected while protecting from dust and the like. By protecting the ion detection unit with the protection unit, it is possible to suppress a decrease in detection sensitivity, and it is possible to prevent occurrence of erroneous detection and damage to the device.

Also, the detection sensitivity of ions can be adjusted by changing the aperture ratio of the mesh material or the perforated material. Therefore, an ion detector having a common size can be adopted between different electric devices, and the aperture ratio can be changed for each electric device so that the sensitivity can be adjusted to be optimum for each. Therefore, it is possible to share an ion detection unit, which is costly when the size is changed, among electric devices, and to reduce the cost. Thus, according to the above configuration, it is possible to provide an ion detector that can protect the ion detector with a simpler configuration and can reduce the cost and adjust the sensitivity.

It is a figure which shows the ion detector which concerns on Embodiment 1 of this invention. It is a figure explaining attachment of the protection part of the ion detector which concerns on Embodiment 1 of this invention. It is a figure which shows the ion electric equipment which concerns on

Embodiment

1 or 3 of this invention. It is a figure which shows the ion detector which shows Embodiment 2 of this invention. It is a figure which shows the electric equipment which concerns on Embodiment 4 of this invention.

Embodiment 1
One embodiment of the present invention is described below with reference to FIGS.

(Ion detector)
FIG. 1 is a diagram showing an ion detector 1 of the present embodiment. The ion detector 1 is a device that collects ions and measures the amount of ions based on a change in potential caused by the collected ions. As shown in FIG. 1B, the ion detector 1 includes a collection electrode (ion detection unit) 2a that collects ions provided on the substrate 2, a protection unit 3 that covers the collection electrode 2a, It has. FIG. 1A shows a state in which the protection unit 3 is removed from the ion detector 1.

The collection electrode 2a is configured to collect either positive ions or negative ions when a voltage is applied, and to increase the potential according to the amount of collected ions. The substrate 2 is further provided with an ion detection circuit (not shown) that outputs a detection signal corresponding to the ions collected by the collection electrode 2a. A well-known thing can be used for the collection electrode 2a and an ion detection circuit. Further, ON and OFF of the voltage applied to the collection electrode 2a can be switched, and the ion is detected (measurement of ion amount) when ON.

The protection part 3 covers the exposed side to the air passage (described later) through which the ions of the collecting electrode 2a flow. As shown in FIG. 1B, in the present embodiment, the protection unit 3 is a sheet formed of a mesh (a mesh-like material). By covering the collection electrode 2a with the protection unit 3, since the protection unit 3 is a sheet formed of a mesh, a layer in which air hardly moves can be formed on the collection electrode 2a. Therefore, dust or the like can be kept away from the collecting electrode 2a. Moreover, since the ions approach the collecting electrode 2a by Coulomb force, the detection sensitivity of the collecting electrode 2a is not reduced.

Thus, with a simple configuration of the protection unit 3 formed of a mesh, it is possible to reliably detect ions while protecting the collecting electrode 2a from dust and the like. Therefore, it is possible to suppress a decrease in detection sensitivity, and to prevent occurrence of erroneous detection and damage to the device.

The mesh forming the protection part 3 may be formed of metal or resin. By making the aperture ratio of the mesh 1.5% or more, the detection sensitivity of the collecting electrode 2a is not lowered. Moreover, the size of a mesh should just be a magnitude | size preferable in order to prevent dust. As shown in FIG. 1 (d), the detection sensitivity of ions can be adjusted by using the protection unit 3a having a changed aperture ratio. Therefore, the collection electrode 2a having a common size can be adopted between different electric devices, and the aperture ratio can be changed for each electric device so that the sensitivity can be adjusted to be optimum for each. Therefore, the collecting electrode 2a, which is costly when the size is changed, can be shared among the electric devices, and the cost can be reduced.

Therefore, according to the above configuration, it is possible to provide the ion detector 1 that can protect the collection electrode 2a with a simpler configuration, can reduce suppression of ion detection sensitivity, and can reduce the cost and adjust the sensitivity.

The protection unit 3 may be fixed to the collection electrode 2a or the periphery thereof with, for example, an adhesive material such as an adhesive tape. For example, as shown in FIG. (Engagement part) 33 may be provided, and the protection part 3 may be fixed by being inserted into the folder 33. The folder 33 can be formed from a resin, for example. Moreover, the protection part 3 has the collar part 34 which assists cancellation | release of fixation, as shown to (b) of FIG. The fixing of the protection part 3 can be facilitated by the collar part 34. Therefore, when it is desired to replace the protective unit 3 when it is dirty, it can be easily replaced using the collar 34. Therefore, maintainability is improved.

Alternatively, a protective sheet may be attached to the collecting electrode 2a and covered with the protective portion 3 thereon. In the case where the detection sensitivity may be lowered, the collecting electrode 2a can be further protected from dust or the like by sticking the protective sheet in this way.

(Electrical equipment)
3A is a lateral view of the electric device 10 of the present embodiment, FIG. 3B is an enlarged view of the vicinity of the ion detector 1 in FIG. 3A, and FIG. 3C is a vertical view of the electric device 10. (D) shows the enlarged view of the vicinity of the ion detector 1 in (c). Since FIG. 3 is shared with Embodiment 3 described later, the shape and size of the protection unit 3 do not correspond to FIG. The electric device 10 of the present embodiment includes the ion detector 1 having the protection unit 3 that is the sheet formed of the mesh illustrated in FIG. 1 described above.

The electrical device 10 includes an ion generator 6 that generates ions, an air passage 4 that is a passage that guides ions generated by the ion generator 6 to the outside, and a blower 7 that generates air in the air passage 4. An ion detector 1 is provided on the lee of the ion generator 6. For example, the electric device 10 is assumed to be an air conditioner (including not only a house but also an in-vehicle device), an air cleaner, and the like, but is not limited thereto.

As the ion generator 6, a known one can be used. In this embodiment, positive ions H ⁺ (H ₂ O) _m (m is an arbitrary natural number) and negative ions O ₂ ⁻ (H ₂ O) _n (n is A type capable of simultaneously generating any natural number) is assumed, but is not limited to this type. The ion generator 6 generates positive ions and negative ions by discharging in the air.

In the present embodiment, the blower 7 forms a blow (air flow) that blows up the inside of the blow passage 4 from the bottom to the top in FIG. By this blowing, the ions generated by the ion generator 6 are transported through the blower path 4 and released to the outside of the electric device 10.

The ion detector 1 is attached to an opening / closing part 5a that constitutes a part of the casing 5 of the electric device 10 that surrounds the air passage 4. The opening / closing part 5 a is provided so as to be openable and closable outside the electric device 10. In the present embodiment, the rotation shaft 5b is provided, and the opening / closing portion 5a is rotated around the rotation shaft 5b so as to be opened and closed. For example, the ion detector 1 is attached from the housing 5 of the electric device 10. The formed opening / closing part 5a may be extracted or pulled out.

Since the ion detector 1 is attached to the opening / closing part 5a, the ion detector 1 can be easily taken out and the protection part 3 can be replaced. Therefore, maintainability is improved. The ion detector 1 may be attached to a portion that does not open and close outside the housing 5 of the electrical device 10.

Regarding the detection of ions by the ion detector 1, for example, control for performing detection when the ion generator 6 mounted on the electric device 10 is activated and a predetermined time has elapsed, or for a predetermined time during operation of the ion generator 6. Control that performs detection every time, control that performs detection when the operation mode (strong, medium, weak, etc.) is switched, and the like are conceivable. When the amount of positive ions or negative ions in the ion generator 6 is adjusted, ions may be detected in parallel with the operation.

[Embodiment 2]
Another embodiment of the present invention is described below with reference to FIG. FIG. 4 is a diagram illustrating the ion detector 50 of the present embodiment. As shown in FIG. 4, the ion detector 50 is different from the ion detector 1 of the first embodiment only in the protection unit 40 that covers the collection electrode 2 a, and the other configurations are the same. Therefore, members having the same functions as those described above are denoted by the same reference numerals, and description thereof will not be repeated.

In the ion detector 50, as shown in FIG. 4B, the protection unit 40 is a sheet made of a perforated material having a plurality of through holes 41. FIG. 4A shows a state where the protection unit 40 is removed from the ion detector 50. FIG. 4C is a cross-sectional view of the protection unit 40. As shown in FIG. 4C, the protective portion 40 is attached so that the through hole 41 protrudes toward the collecting electrode 2a (opens downward in the drawing). Since it can form in the surface of the collection electrode 2a, it is preferable.

The protection part 40 of the present embodiment can be formed by providing a through hole 41 using a punch or the like on a resin, rubber, or metal sheet, for example. Of course, the material and the formation method of the protection part 40 are not limited to these. Moreover, although the shape of the through-hole 41 is illustrated by a circle, it may not be a circle.

The detection sensitivity of the collection electrode 2a is not lowered by setting the aperture ratio (ratio of the through hole 41) of the protection part 40 to 1.5% or more. Moreover, the size of the through hole may be a size that is preferable for preventing dust. As shown in FIG. 4 (d), the detection sensitivity of ions can be adjusted by using the protection part 40a in which the size of the through hole 41a is changed. Therefore, the collection electrode 2a having a common size can be adopted between different electric devices, and the aperture ratio can be changed for each electric device so that the sensitivity can be adjusted to be optimum for each. Therefore, the collecting electrode 2a, which is costly when the size is changed, can be shared among the electric devices, and the cost can be reduced.

Moreover, the protection part 40 should just be fixed to the collection electrode 2a or its circumference | surroundings with an adhesive or an engaging part.

[Embodiment 3]
Another embodiment of the present invention will be described below with reference to FIG. As shown in FIG. 3 (d), the ion detector 1b of the present embodiment is different from the ion detector 1 of the first embodiment only in the shape of the protective portion 3b that covers the collection electrode 2a. The configuration of is the same. Therefore, members having the same functions as those described above are denoted by the same reference numerals, and description thereof will not be repeated.

In the ion detector 1b, the protection part 3b is a casing formed of a mesh (network material). The mesh that forms the protection part 3b may be formed of, for example, resin or metal, and may have an opening ratio that does not allow dust to pass while ensuring air permeability. The protection part 3b should just be fixed to the collection electrode 2a or its periphery with an adhesive or an engaging part.

Note that the protective part 3b may be a casing formed of a perforated material having a plurality of through holes described in the second embodiment.

[Embodiment 4]
Another embodiment of the present invention is described below with reference to FIG. FIG. 5A shows a lateral view of the electric apparatus 10 provided with the ion detector 1c of the present embodiment, and FIG. 5B is an enlarged view of the vicinity of the ion detector 1c in FIG. Moreover, (c) of FIG. 5 shows the longitudinal view of the electric equipment 10 provided with the ion detector 1c of this embodiment, (d) is an enlarged view of the vicinity of the ion detector 1c in (c). .

The ion detector 1b of the present embodiment is different from the ion detector 1 of the first embodiment only in the shape of the protective part 3c that covers the collecting electrode 2a, and the other configurations are the same. Therefore, members having the same functions as those described above are denoted by the same reference numerals, and description thereof will not be repeated.

As shown in FIG. 5 (d), in the ion detector 1c, the protection part 3c is a housing provided with

openings

31a and 31b covered with a mesh (mesh-like material) 32. The

openings

31a and 31b are provided on the windward side and the leeward side, respectively, with respect to the collecting electrode 2a. By providing the

openings

31a and 31b as described above, it is possible to more easily pass the air that conveys ions. In the present embodiment, the

openings

31a and 31b covered with the mesh 32 are provided on the windward side and the leeward side, respectively, with respect to the collecting electrode 2a, but are provided at least on the windward side with respect to the collecting electrode 2a. It is preferable. The mesh 32 may be formed of, for example, resin or metal, and may have an opening ratio that does not allow dust to pass while ensuring air permeability.

The protective part 3c may be fixed to the collecting electrode 2a or its periphery with an adhesive or an engaging part. The protective part 3c may be a housing provided with an opening covered with a perforated material having a plurality of through holes described in the second embodiment.

The present invention is not limited to the above-described embodiments, and various modifications can be made. The embodiments of the present invention can also be obtained by appropriately combining technical means disclosed in different embodiments. Included in the range. Furthermore, a new technical feature can be formed by combining the technical means disclosed in each embodiment.

[Summary]
The ion detector (1, 50) according to the first aspect of the present invention includes an ion detection unit (collecting electrode 2) that is exposed and disposed in an air passage through which ions flow, and the air passage of the ion detection unit. And a protective part (3, 40) covering the exposed side of the protective part, at least a part of which is formed of a mesh material or a perforated material having a plurality of through holes.

Also, the detection sensitivity of ions can be adjusted by changing the aperture ratio of the mesh material or the perforated material. Therefore, an ion detector having a common size can be adopted between different electric devices, and the aperture ratio can be changed for each electric device so that the sensitivity can be adjusted to be optimum for each. Therefore, it is possible to share an ion detection unit, which is costly when the size is changed, among electric devices, and to reduce the cost.

As described above, according to the above configuration, it is possible to provide an ion detector that can protect the ion detector with a simpler configuration, can reduce the suppression of the detection sensitivity of ions, and can adjust the sensitivity at a reduced cost.

In the ion detector according to aspect 2 of the present invention, in the ion detector according to aspect 1, the protection part is a sheet formed of the mesh material or the perforated material.

According to the above configuration, the sheet formed of the mesh material or the perforated material can form a space in which air hardly moves on the exposed side of the ion detection unit to the air passage. Since it is a space where air does not move easily, dust etc. are not brought close to the ion detector. Therefore, it is possible to suppress a decrease in ion detection sensitivity with an easier configuration.

In the ion detector (1b) according to Aspect 3 of the present invention, in the ion detector according to Aspect 1, the protection part (3b) is a casing formed of the mesh material or the perforated material. .

According to the above configuration, the ion detector can be protected with an easy configuration of a casing formed of the mesh material or the perforated material, and a decrease in ion detection sensitivity can be suppressed.

In the ion detector (1c) according to Aspect 4 of the present invention, in the ion detector according to Aspect 1, the protective part (3c) includes a housing having an opening covered with the mesh material or the perforated material. Is the body.

According to the above configuration, the ion detection unit can be protected with an easy configuration of a casing having an opening covered with the mesh material or the perforated material, and a decrease in detection sensitivity of ions can be suppressed.

In the ion detector according to aspect 5 of the present invention, in the ion detector according to aspect 4, the openings are provided on the windward side and the leeward side, respectively, with respect to the ion detection unit.

According to the above configuration, it is possible to more easily pass the air that conveys ions.

In the ion detector which concerns on aspect 6 of this invention, in the ion detector which concerns on aspect 1, the said protection part is being fixed to the said ion detection part or its circumference | surroundings with an adhesive or an engaging part (folder 33). .

According to the above configuration, the protection unit can be attached to or around the ion detection unit with an easy configuration of an adhesive or an engagement unit.

In the ion detector according to aspect 7 of the present invention, in the ion detector according to aspect 6, the protection unit includes a flange (34) that assists the release of the fixation.

上記 According to the above configuration, the protection part can be easily released by the collar part. Therefore, when it is desired to replace the protective part when it becomes dirty, it can be easily replaced using the collar part. Therefore, maintainability is improved.

In the ion detector according to Aspect 8 of the present invention, in the ion detector according to Aspect 7, the saddle portion is provided on the leeward side.

と If the buttocks are on the windward side, turbulence may be generated, but according to the above configuration, it can be prevented.

An electric device (10) according to an aspect 9 of the present invention includes an ion generator that generates ions, an air passage that guides ions generated by the ion generator to the outside, a blower that generates air in the air passage, An ion detector according to any one of aspects 1 to 8.

According to the above configuration, it is possible to provide an electric apparatus including an ion detector that can protect the ion detection unit with a simpler configuration, suppress a decrease in ion detection sensitivity, and reduce the cost to adjust the sensitivity.

In the electrical device according to aspect 10 of the present invention, in the ion detector according to aspect 9, the casing surrounding the air passage includes an opening / closing portion that is openable and closable to the outside, and the ion detector It is attached to the part.

According to the above configuration, the ion detector is attached to an opening / closing part that can be opened and closed to the outside of the casing, so that the ion detector can be easily taken out and the protection part can be replaced. . Therefore, maintainability is improved.

The present invention can be widely used for ion detectors for detecting ions and electric devices including the same.

1, 1a, 1b, 1c, 50 Ion detector 2 Substrate 2a Collection electrode (ion detector)
3, 3 a, 3 b, 3 c, 40, 40 a Protective unit 4 Blower passage 5 Enclosure of electrical equipment (housing surrounding the blower passage)
5a Opening / closing part 5b Rotating shaft 6 Ion generator 7 Blower 10

Electric equipment

31a, 31b Opening part 32 Mesh 34 Gutter part 33 Folder (engaging part)
41, 41a Through hole

Claims

An ion detector that is exposed and arranged in an air passage through which ions flow;
A protection unit covering the exposed side of the ion detection unit to the air passage, and
The ion detector is characterized in that at least a part of the protective part is formed of a mesh material or a perforated material having a plurality of through holes.
2. The ion detector according to claim 1, wherein the protection part is a sheet or a casing formed of the mesh material or the perforated material.
The ion detector according to claim 1 or 2, wherein the protection part is fixed to the ion detection part or its periphery by an adhesive or an engagement part.
4. The ion detector according to claim 3, wherein the protection part has a collar part that assists the release of the fixation, and the collar part is provided on the leeward side.
The ion generator according to claim 1, an ion generator that generates ions, an air passage that guides ions generated by the ion generator to the outside, a blower that generates air in the air passage, and the ions according to claim 1. A detector,
The housing surrounding the air passage is provided with an opening / closing part that can be opened and closed to the outside,
The electrical device, wherein the ion detector is attached to the opening / closing part.