CN107534274B

CN107534274B - Ion generating device

Info

Publication number: CN107534274B
Application number: CN201680010829.7A
Authority: CN
Inventors: 伊豆晃一; 天池宏明; 漆崎正人
Original assignee: Sharp Corp
Current assignee: Sharp Corp
Priority date: 2015-05-22
Filing date: 2016-02-29
Publication date: 2020-04-14
Anticipated expiration: 2036-02-29
Also published as: JPWO2016189913A1; JP6408149B2; CN107534274A; WO2016189913A1

Abstract

The invention provides an ion generating device (100) which is provided with an ion generator (1) for generating ions and a lighting device (3), and heats the ion generator (1) or air near the ion generator (1) by using heat generated by the lighting device (3). The ion generating device (100) prevents the ion generator from generating condensation.

Description

Ion generating device

Technical Field

The present invention relates to an ion generating device including an ion generator and an illumination device.

Background

Currently, various ion generating devices are known, such as a negative ion generating device that releases negative ions to provide a forest bath effect, and a clean ion group (registered trademark) ion generating device that releases negative ions and positive ions to provide a sterilizing and deodorizing effect, and the like.

For example, patent document 1 discloses an air cleaning device with a lighting fixture, which includes a lighting fixture and an ionizer.

Documents of the prior art

Patent document

[ patent document 1] Japanese patent laid-open publication: japanese laid-open patent publication No. 2002-159880 (published Japanese 2002-6-4)

Disclosure of Invention

Technical problem to be solved by the invention

However, the ion generating device has a problem that when it is in a low-temperature and high-humidity environment, condensation is generated on the ion generator and the ability to generate ions is lowered.

The present invention has been made in view of the above problems, and an object of the present invention is to prevent or eliminate condensation of an ionizer.

Means for solving the problems

An ion generating device according to an aspect of the present invention is an ion generating device including an ion generator that generates ions and a lighting device, and is characterized in that the ion generator or air in the vicinity of the ion generator is heated by heat generated by the lighting device.

Effects of the invention

According to the above configuration, the heat generated by the lighting device is used to heat the ionizer or the air in the vicinity of the ionizer, so that the condensation of the ionizer can be prevented or eliminated.

Drawings

Fig. 1 is a perspective view of an ion generator according to a first embodiment of the present invention.

Fig. 2 is a cross-sectional view of the ion generating device shown in fig. 1, showing the direction of air flow when the fan is driven to rotate in the forward direction.

Fig. 3 is a perspective view showing a configuration of an illumination device provided in the ion generating device shown in fig. 1.

Fig. 4 is a block diagram showing a configuration of a control system in the ion generating device shown in fig. 1.

Fig. 5 is a sectional view of the ion generating device shown in fig. 1, showing the direction of air flow when the driving fan is rotated in the reverse direction.

Fig. 6 is a cross-sectional view of an ion generating device according to a second embodiment of the present invention, showing the direction of air flow when the fan is driven in the reverse direction.

Fig. 7 is a sectional view of an ion generating device according to a third embodiment of the present invention, showing the direction of air flow when the fan is driven to rotate in the forward direction.

Fig. 8 is a sectional view of an ion generating device according to a fourth embodiment of the present invention, showing the direction of air flow when the fan is driven to rotate in the forward direction.

Fig. 9 is a sectional view of an ion generating device according to a fifth embodiment of the present invention, showing the direction of air flow when the driving fan is rotated in the reverse direction.

Fig. 10 is an explanatory view schematically showing the positional relationship of the respective members of the ion generating device according to the fifth embodiment of the present invention, wherein (a) shows the air flow direction during normal driving, and (b) shows the air flow direction during reverse driving.

Fig. 11 is an explanatory view schematically showing the positional relationship of respective members in a modification of the ion generating device according to the fifth embodiment of the present invention, in which (a) shows the air flow direction during normal driving, and (b) shows the air flow direction during reverse driving.

Fig. 12 is an explanatory view schematically showing the positional relationship of the respective members of the ion generating device according to the sixth embodiment of the present invention, wherein (a) is a view seen from the side in the air flow direction, and (b) is a view seen along the air flow direction.

Fig. 13 is a graph showing changes with time in the first embodiment of the present invention, in which (a) shows changes with time in the rotational state of the fan, and (b) shows changes with time in the position of dust and the like.

Fig. 14 is a graph showing changes with time in the seventh embodiment of the present invention, in which (a) shows changes with time in the rotational state of the fan, and (b) shows changes with time in the position of dust and the like.

Detailed Description

[ one embodiment ]

Next, an embodiment of the present invention will be explained.

Fig. 1 is a perspective view of an ion generator 100 according to the present embodiment, and fig. 2 is a sectional view of the ion generator 100.

As shown in fig. 1 and 2, the ion generating device 100 includes an ion generator 1, a fan (blower) 2, a lighting device 3, a housing 4, and a joint 5.

The housing 4 has a substantially cylindrical shape, and the ion generator 1, the fan 2, and the lighting device are housed therein. The housing 4 is provided with openings on the front and rear sides in the axial direction, and a connector 6 for connecting the housing 4 to the joint 5 is attached to the rear side of the housing 4.

The connecting piece 6 forms part of the housing 4. When a hook (not shown) provided on the connector 6 is inserted into the connector 5, the housing 4 is detachably attached to the connector 5.

The adaptor 5 includes a screw 7, and the ion generating device 100 is mounted on a mounting surface and supplied with power by mounting the screw 7 on a socket provided on the mounting surface of a ceiling, a wall, a floor, various appliances, or the like. In the present embodiment, the ion generating device 100 is mounted in the outlet provided on the mounting surface, but the present invention is not limited thereto, and may be mounted in another member to be mounted, such as a junction box, other than the outlet. The present invention is not limited to the structure of being attached to the attachment surface, and may be used by being placed on a floor surface, or by being hooked, hung, or built in various structures.

An air inlet 8 is formed on the outer peripheral surface of the housing 4 surrounding the connector 6 over the entire circumference of the housing 4 in the circumferential direction, and a detachable filter 9 is provided on the inner surface side of the air inlet 8.

The intake port 8 communicates with an opening on the front surface side of the housing 4, that is, the vent 30. That is, the housing 4 has the air duct 10 formed therein to connect the air inlet 8 and the air vent 30.

Further, the air duct 10 is provided with a fan 2. The fan 2 is an axial fan, and a rotating shaft is supported on the inner wall of the casing 4 so as to be positioned on the central axis of the air duct 10. In the present embodiment, the fan 2 can be switched between the forward direction and the reverse direction, and the fan 2 is driven to rotate in the forward direction during normal driving, and the rotational direction can be switched between the reverse direction as needed. Note that the arrows shown in fig. 2 indicate the air flow direction when the fan 2 is rotated in the forward direction, i.e., the rotational direction during normal driving.

When the fan 2 is driven in the forward direction, air around the casing 4 is sucked into the casing 4 through the air inlet 8, and the flow direction is changed from the radial direction to the axial direction at the inlet of the air duct 10, and is guided to the outlet side of the air duct 10.

The ionizer 1 includes two sets of discharge electrodes and induction electrodes (both not shown), which are housed in a housing made of resin. In addition, a high voltage generating circuit for applying a high voltage to the discharge electrode and the inductive electrode is provided in the case made of resin. The ionizer 1 is disposed so as to face the air duct 10, and generates positive ions H called Plasma Cluster (registered trademark) ions by applying a high voltage to the discharge electrode and the induction electrode and then generating a discharge between the two electrodes⁺(H₂O) m (m is any natural number) and anion O₂ ^-(H₂O) n (n is an arbitrary natural number), and is released into the air flowing through the air duct 10.

It is known that Plasma Cluster ions have a sterilizing effect, a deodorizing effect, a virus-inhibiting effect and an antistatic effect. The ionizer 1 is not limited to an apparatus for generating Plasma Cluster ions in air. A device that releases positive and negative ions other than the Plasma Cluster ions or negative ions may also be used.

In addition, an ion sensor 11 for detecting ions generated by the ionizer 1 is provided on a side wall of the air duct 10. The sensor 11 is disposed on the downstream side of the ion generator 1 in the circumferential direction of the housing 4 in the normal rotation direction of the fan 2.

The lighting device 3 includes a plurality of light emitting elements 20 and an attachment plate 21 on which the light emitting elements 20 are mounted, and is provided near the outlet of the air duct 10. That is, the ionizer 1 and the lighting device 3 are disposed along the same air duct 10.

Fig. 3 is a perspective view showing the structure of the lighting device 3 attached to the housing 4. As shown in the drawing, the mounting plate 21 is a circuit board formed in a substantially disc shape, and is provided in the vicinity of an opening portion on the front surface of the housing 4. An outer peripheral portion of the mounting plate 21 forms an annular mounting portion 22, and a plurality of light emitting elements 20 made of LEDs are mounted on the mounting portion 22 at regular intervals and are formed in a circular shape. The mounting portion 22 is mounted to the outlet periphery of the air duct 10 by screws. The front surface of the mounting portion 22 is covered with a light-transmissive cover 23. The mounting plate 21 is not particularly limited, and preferably includes a heat-radiating member made of a high thermal conductive material such as aluminum, for example. In the present embodiment, a configuration using the illumination device 3 having an LED as a light source is described, but the configuration of the illumination device 3 is not limited to this.

Further, a disk-shaped island portion 24 is provided at the center of the mounting plate 21, and the disk-shaped island portion 24 is connected to the mounting portion 22 via a plurality of bridge portions 25.

Various electronic components for transmitting and receiving information are mounted on the island 24. Examples of the electronic component include: a human body sensor for detecting whether a person is present in a room, a notification lamp such as an LED for notifying various information, an illuminance sensor, an odor sensor, and the like. In the present embodiment, the island 24 is mounted with a human body sensor 26 and a notification lamp 27.

A printed wiring is arranged on the bridge portion 25, and the mounting portion 22 and the island portion 24 are electrically connected by the printed wiring.

The island portion 24 and the bridge portion 25 are covered with a front cover 28 and a rear cover 29 which are not translucent. The front cover 28 covers the front sides of the island 24 and the bridge 25, and is held by the rear cover 29 with a gap between the front cover and the island 24 and the bridge 25. The rear cover 29 covers the back surfaces of the island 24 and the bridge 25, and is attached to the inner wall of the housing 4 with a gap between the rear cover and the island 24 and the bridge 25. These gaps are used for the circulation of wind.

The inner peripheral edge of the mounting portion 22 faces the air duct 10. Further, the bridge portion 25 and the island portion 24, which are parts of the attachment plate 21, are located in the air duct 10 and protrude into the air duct 10.

In addition, a vent 30 is formed between the mounting portion 22 and the land portion 24 of the mounting plate 21, and the vent 30 is constituted by a plurality of openings defined by the bridge portion 25. The air vent 30 communicates with the air duct 10, and the air vent 30 is regarded as an air outlet of the housing 4 for blowing out ions when the fan 2 is rotated in the forward direction, i.e., normally driven. In the present embodiment, the number of the bridge portions 25 is set to three so as not to obstruct the air flow, and ions can be smoothly released from the outlet port into the room.

During normal driving, ions generated by the ion generator 1 are sent to the outlet via the air duct 10 by the air blow of the fan 2, and are released to the outside of the ion generating device 100 from the air vent 30 of the mounting plate 21.

The light emitting elements 20 arranged around the plurality of air vents 30 emit light under the control of a control unit 41 described later, and illuminate the front of the ion generating device 100. In the present embodiment, the blowing direction of ions during normal driving and the irradiation direction (illumination direction) of light from the illumination device 3 are set to the same direction, and ions are emitted toward the illumination region. However, the present invention is not limited to this, and the illumination direction of the illumination device 3 and the ion emission direction may be different.

The ion sensor 11 detects the amount or concentration of ions generated by the ionizer 1. In normal driving, ions generated by the ionizer 1 flow toward the ion sensor 11 by the rotation of the fan 2, and the ion sensor 11 can accurately detect the amount or concentration of ions.

The main substrate 31 is provided on the side wall of the air duct 10. A control unit 41 including a CPU and the like, a power supply device 42 for supplying power to the respective devices, and the like are mounted on the main board 31 (see fig. 4 described later). The main substrate 31 and the mounting plate 21 are electrically connected by a wire (not shown). The control unit 41 controls operations of the ionizer 1, the fan 2, and the lighting device 3 in accordance with instructions input by a user, detection results of various sensors, and the like.

Fig. 4 is a block diagram showing a configuration of a control system in the ion generating apparatus 100. As shown in the figure, the control unit 41 is connected to the ionizer 1, the fan 2, the lighting device 3, the notification lamp 27, the power supply device 42, the operation input unit 43, the human body sensor 26, and the ion sensor 11.

The operation input unit 43 receives an instruction input from a user and transmits it to the control unit 41. The operation input unit 43 may be configured to receive an instruction input from a user transmitted via a remote controller, or may be configured to receive an instruction input from a user to various operation mechanisms (not shown) such as a switch provided in the joint 5 or the housing 4 of the ion generating device 100.

The motion sensor 26 detects whether or not a person is present in a space (space within a predetermined range) in which the ion generating device 100 is installed, and transmits the detection result to the control unit 41.

The ion sensor 11 checks whether there are ions generated by the ionizer 1 or the amount of ions, and transmits the detection result to the control unit 41.

The control unit 41 controls the operations of the power supply device 42, the ionizer 1, the fan 2, the lighting device 3, and the notification lamp 27 based on the instruction input by the user through the operation input unit 43 and the detection results of the human body sensor 26 and the ion sensor 11.

For example, when the ion sensor 11 detects no ions or the amount of ions is below a prescribed value, the control unit 41 stops the operation of the ionizer 1 and activates the notification lamp 27. Thereby, the ionizer 1 is notified of the generation of an abnormality.

In addition, the control unit 41 controls the operations of the ionizer 1, the fan 2, and the lighting device 3 according to the detection result of the human body induction sensor 26.

For example, when a person is present in the detection space of the human body sensor 26, the control unit 41 turns on the lighting device 3 and drives the fan 2 in a silent mode in which the driving sound is low. In addition, if no person is present in the detection space of the motion sensor 26, the control unit 41 turns off the lighting device 3 and sets the rotation speed of the fan 2 higher than the silent mode.

Further, the control unit 41 switches the rotation direction of the fan 2 to the opposite direction to that in the normal driving in a state where the lighting device 3 is turned on, when the following predetermined condition is satisfied: for example, (i) the ionizer 1 starts an operation of generating ions; (ii) when the ion generator 1 performs an operation of generating ions, the amount of ions detected by the ion sensor 11 is less than or equal to a predetermined value; (iii) the user instructs inversion driving and the like. Fig. 5 is an explanatory diagram showing the direction of air flow in the ion generating device 100 when the fan 2 is driven in reverse rotation, even if it is rotated in the direction opposite to that in normal driving.

As shown in fig. 5, the outside air of the ion generating device 100 enters the air duct 10 through the air vent 30, passes through the vicinity of the ionizer 1, and is discharged from the air inlet 8 to the outside of the ion generating device 100.

At this time, the air entering the air duct 10 is heated to a temperature higher than the outside temperature of the ion generating device 100 by the heat emitted from the mounting plate 21, and then delivered to the vicinity of the ionizer 1.

That is, after the lighting device 3 is turned on, the light emitting element 20 generates heat, and the heat generated by the heat generation of the light emitting element 20 is transferred from the mounting portion 22 to the island portion 24 through the bridge portion 25. Therefore, when the air introduced into the air vent 30 passes through the mounting plate 21, the air is heated by contacting the bridge portion 25 and the island portion 24, which are portions of the mounting plate 21. The high-temperature air around the mounting portion 22 is taken in by the air flow flowing into the air duct 10 from the air vent 30, and the air around the mounting portion 22 flows toward the air intake port 8 side through the air duct 10 together with the air entering from the air vent 30. Thereby, the mounting plate 21 is cooled by heat release from the mounting plate 21 into the air, and the heated air flows through the vicinity of the ionizer 1 in the air duct 10.

As a result, by introducing high-temperature air into the vicinity of the ionizer 1, the ionizer 1 and/or the air around the ionizer 1 is heated, and condensation of the ionizer 1 is prevented or eliminated. In the case of the reverse rotation driving, the air heated by the heat generated by the lighting device 3 may pass through the vicinity of the ionizer 1, may contact the ionizer 1, or may pass through the inside of the ionizer 1.

As shown in fig. 2, when the air that has entered from the air inlet 8 and passed through the air duct 10 passes through the mounting plate 21 and the air vents 30 during normal driving, the air contacts the bridge portion 25 and the island portion 24, which are portions of the mounting plate 21, to cool the mounting plate 21, and is discharged to the outside of the ion generating device 100.

As described above, the ion generating device 100 according to the present embodiment includes the ion generator 1 and the lighting device 3, and further includes the lighting device 3 as a heating portion for heating the ion generator 1 and/or the air around the ion generator 1 by the heat emitted from the lighting device 3, and the fan 2 as a heat transfer portion; the heat transfer unit transfers heat.

Specifically, in the ion generating device 100, the fan 2 and the ion generator 1 are disposed in the air duct 10 communicating the air inlet 8 and the air vent 30, and the illumination device 3 is disposed on the air vent 30 side of the ion generator 1. The fan 2 can switch the rotation direction between the forward direction and the reverse direction, and the air flowing through the air duct 10 can be reversed when the fan is driven to rotate in the forward direction and when the fan is driven to rotate in the reverse direction.

By switching the rotation direction of fan 2 to the opposite direction, the air taken in from air vent 30 is heated by the heat emitted from illumination device 3 and then guided to the periphery of ionizer 1, thereby heating ionizer 1 and/or the air around ionizer 1. As a result, condensation of the ionizer 1 can be prevented or eliminated.

Further, by switching the rotation direction of the fan 2 to the opposite direction, the air sucked from the air vent 30 can be discharged from the air inlet 8 to the outside in the radial direction of the housing 4 of the ion generating device 100. Thus, Plasma Cluster ions generated by the ionizer 1 can be emitted along the installation surface of the ion generating device 100, for example, the ceiling, the wall surface, the floor surface, and the like, and therefore, the installation surface and the nearby space can be sterilized, deodorized, inhibited from virus action, antistatic, and the like.

Further, by switching the rotation direction of the fan 2 to the reverse direction, the ions are brought into contact with the filter 9 to easily remove the static electricity of the filter 9, and dust and the like adhering to the filter 9 can be removed. Since the fan 2 is designed to have high blowing efficiency during normal driving, the amount of air blown during driving in the reverse direction is reduced as compared to that during normal driving. Therefore, although the dust and the like adhering to the filter 9 are easily removed from the filter 9 by the ions, they are not scattered in the air.

The number of rotations of the driving fan 2 in the reverse rotation may be set to be lower than that in the normal driving. Accordingly, during normal driving, that is, when it is necessary to discharge ions to the outside of the ion generator 100, the number of rotations of the fan 2 can be increased to effectively discharge the ions, and when the process of preventing or eliminating dew condensation of the ion generator 1 is performed, the fan 2 can be rotated in the reverse direction to guide the air heated by the heat emitted from the light emitting element 20 to the vicinity of the ion generator 1, and at the same time, scattering of dust and the like peeled off from the filter 9 into the air can be reliably suppressed.

[ second embodiment ]

Next, another embodiment of the present invention will be explained. It should be noted that, for convenience of description, components having the same functions as those in the first embodiment are denoted by the same reference numerals, and are not described again here.

Fig. 6 is a cross-sectional view of the ion generating device 100 according to the present embodiment, and arrows shown in the figure indicate air flows when the fan 2 is driven to rotate in a direction opposite to that in the normal driving.

As shown in fig. 6, the ion generating device 100 according to the present embodiment is different from the first embodiment in that the heating air duct 13 is provided with the air duct 13 for heating, and the air introduced from the air vent 30 when the fan 2 is driven in reverse is guided to the ionizer 1 or the ionizer 1 by a route different from that of the air duct 10.

When the fan 2 is driven to rotate in the direction opposite to the normal driving direction, a part of the air introduced from the air vent 30 is heated to a temperature higher than the outside of the ion generating device 100 by the heat released from the mounting plate 21, and then is transported to the vicinity of the ion generator 1 through the heating air duct 13 formed separately from the air duct 10. Accordingly, the air heated by the heat released from the mounting plate 21 passes through the ionizer 1 in the air duct 10 or the vicinity of the ionizer 1, and heats the ionizer 1 and/or the air around the ionizer 1, thereby preventing or eliminating the condensation of the ionizer 1. Further, by providing the heating air duct 13, the air heated by the heat released from the mounting plate 21 can be effectively guided to the ionizer 1 or the vicinity of the ionizer 1, and therefore, the condensation of the ionizer 1 can be more appropriately prevented or eliminated.

[ third embodiment ]

Next, still another embodiment of the present invention will be explained. It should be noted that, for convenience of description, components having the same functions as those in the first embodiment are denoted by the same reference numerals, and are not described again here.

Fig. 7 is a cross-sectional view of the ion generating device 100 in the present embodiment, and arrows shown in the figure indicate air flows when the fan 2 is driven to rotate in the normal driving direction, i.e., the forward direction.

As shown in fig. 7, an ion generating device 100 according to the present embodiment is different from the first embodiment in that a heat conductor 14 is provided, and the heat conductor 14 extends from a mounting plate 21 of an illumination device 3 to the vicinity of an ion generator 1.

By providing the heat conductor 14, the heat generated by the light emission of the light emitting element 20 can be conducted to the ionizer 1 and/or the air around the ionizer 1 by the mounting plate 21 and the heat conductor 14. Thereby, the ionizer 1 and/or the air around the ionizer 1 can be heated to prevent or eliminate the condensation of the ionizer 1.

As in the first embodiment, the control unit 41 may drive the fan 2 in reverse when a predetermined condition is satisfied, or may always fix the rotation direction of the fan 2 to the normal rotation direction, i.e., the positive direction during normal driving.

When fan 2 is driven in reverse, air around ionizer 1 and/or ionizer 1 can be heated efficiently by heating air sucked from air vent 30 and passing through ionizer 1 or the vicinity of ionizer 1 and by heating heat conducted to ionizer 1 or the vicinity of ionizer 1 through heat conductor 14.

Further, if the rotation direction of fan 2 is always fixed in the positive direction, the heat conducted through heat conductor 14 heats ionizer 1 and/or the air around ionizer 1, and the structure of fan 2 can be simplified.

[ fourth embodiment ]

Fig. 8 is a cross-sectional view of the ion generating device 100 according to the present embodiment, and arrows shown in the figure indicate air flows when the fan 2 is rotated in the normal driving direction, i.e., the forward direction.

As shown in fig. 8, the ion generating device 100 according to the present embodiment is different from the first embodiment in that the heating air duct 15 is provided, and when the fan 2 is driven to rotate normally, the heating air duct 15 diverts a part of the air sucked from the air inlet 8 by the fan 2 and guides the air to the vicinity of the ion generator 1 through the region in contact with the attachment plate 21 of the illumination device 3.

When the fan 2 is driven to normally rotate, a part of the air entering from the air inlet 8 passes through the heating air duct 1, is guided to the region in contact with the attachment plate 21, is heated by being in contact with the attachment plate 21, and is then guided to the ionizer 1 or the vicinity of the ionizer 1. Thus, the air heated by the heat emitted from the mounting plate 21 passes through the ionizer 1 or the vicinity of the ionizer 1, and heats the ionizer 1 and/or the air around the ionizer 1, thereby preventing or eliminating the condensation of the ionizer 1.

As in the first embodiment, the control unit 41 may drive the fan 2 in reverse when a predetermined condition is satisfied, or may always fix the rotation direction of the fan 2 in the positive direction.

[ fifth embodiment ]

Fig. 9 is a cross-sectional view of ion generating device 100 in the present embodiment, and arrows shown in the figure indicate air flows when fan 2 is driven in reverse. Fig. 10 is an explanatory view schematically illustrating the positional relationship among the air inlet 8, the ion sensor 11, the ionizer 1, the air duct 10, the fan 2, and the air vent 30, where (a) shows the air flow direction during normal driving and (b) shows the air flow direction during reverse driving.

As shown in fig. 9 and 10, in the ion generating device 100 of the present embodiment, the ion sensor 11 is located at a position upstream of the ion generating region of the ionizer 1 in the air flow direction when the fan 2 is driven to rotate normally; this is different from the first embodiment in that when the fan 2 is driven in reverse, the position is on the downstream side in the air flow direction from the ion generation region of the ionizer 1.

Thus, ions generated by the ion generator 1 can be efficiently released to the outside of the ion generating apparatus 100 in normal rotation driving.

That is, when the ion sensor 11 is disposed on the downstream side of the ion generation region, a part of the ions generated by the ionizer 1 is absorbed by the ion sensor 11, and the amount of the ions emitted from the ion generation device 100 is reduced.

In contrast, in the present embodiment, since the ion sensor 11 is disposed at a position on the upstream side of the ion generation region in normal rotation driving, ions generated by the ionizer 1 can be prevented from being absorbed by the ion sensor 11, and can be efficiently released from the ion generation device 100.

In addition, since the ion sensor 11 is disposed at a position on the upstream side of the ion generation region during normal rotation driving, the distance from the ionizer 1 to the air vent 30 can be shortened, and therefore, the decrease of ions generated by the ionizer 1 in the ion generation device 100 can be further suppressed.

Further, by driving the fan 2 in reverse, the ions generated by the ion generator 1 can be guided to the ion sensor 11 disposed on the downstream side of the ion generation area, and the amount of ion generation (or ion concentration) can be appropriately detected.

The purpose of detecting the ion generation amount or the ion concentration is to detect whether or not the ion generator 1 generates ions of a predetermined amount or more, and therefore, detection is not always necessary, and detection may be performed every predetermined time, for example, every day, every several hours, every start or stop of driving, or the like.

Further, since the fan 2 is designed to improve the air blowing efficiency during the normal driving, the air speed during the reverse driving is lower than that during the normal driving. Therefore, compared to the case where the ion sensor 11 is disposed at a position downstream of the ionizer 1 in the normal driving, the ion sensor 11 can absorb ions generated by the ionizer 1 more effectively, and the detection accuracy can be improved.

The number of rotations of the fan 2 in the reverse rotation may be set to be lower than that in the normal rotation. Accordingly, in the normal driving, that is, when it is necessary to discharge ions to the outside of the ion generator 100, the number of rotations of the fan 2 can be increased to effectively discharge ions, and when the ions are detected by the ion sensor 11, the ions generated by the ion generator 1 can be guided to the ion sensor 11 at a low wind speed, thereby further improving the detection accuracy.

In the present embodiment, the fan 2 is disposed at a position downstream of the ion generator 1 in the air flow direction in the normal rotational driving, but the positional relationship between the fan 2 and the ion generator 1 is not limited to this. For example, as shown in fig. 11 (a) and (b), the fan 2 may be disposed at a position upstream in the air flow direction with respect to the ionizer 1 during normal rotational driving and at a position downstream in the air flow direction with respect to the ionizer 1 during reverse driving.

[ embodiment 6 ]

Fig. 12 is an explanatory diagram showing a positional relationship among the ionizer 1, the fan 2, and the ion sensor 11 of the ion generating device 100 in the present embodiment, where (a) is a diagram viewed from a side surface in the air flow direction, and (b) is a diagram viewed along the air flow direction.

As shown in fig. 12 (a), in the ion generating device 100 of the present embodiment, as in the fifth embodiment, the ion sensor 11 is disposed at a position upstream of the ion generating region of the ionizer 1 in the air flow direction when the fan 2 is normally driven, and downstream of the ion generating region of the ionizer 1 in the air flow direction when the fan 2 is reversely driven.

As shown in fig. 12 (b), the ion sensor 11 is disposed at a position shifted to the rotation direction side of the fan 2 during reverse driving, compared to the ionizer 1, when viewed in the air flow direction.

In the present embodiment, an axial fan is used as the fan 2, and the air flow blown by the axial fan is a vortex flow along the fan rotation direction. Therefore, when viewed in the air flow direction, the ion sensor 11 is disposed at a position shifted from the ion generator 1 toward the rotation direction of the fan 2 during the reverse rotation driving, whereby the ions generated by the ion generator 1 can be effectively guided to the ion sensor 11, and the detection accuracy can be improved.

The degree of displacement of the position of the ion sensor 11 toward the rotation direction of the fan 2 during the reverse rotation driving may be set as appropriate in consideration of the number of rotations and characteristics of the fan 2, and the ions generated by the ion generator 1 may be effectively guided to the ion sensor 11.

[ embodiment 7 ]

Next, another embodiment of the present invention will be described with reference to fig. 2, 5, 13, and 14. It should be noted that, for convenience of description, components having the same functions as those in the first embodiment are denoted by the same reference numerals, and are not described again here.

As shown in fig. 2 and 5, the filter 9 is provided in the intake port 8 (first opening), but the filter is not provided in the vent 30 (second opening). The air vent 30 is disposed below the air inlet 8. The positive direction is the direction in which air flows from the air inlet 8 to the air vent 30. The opposite direction is the direction of air flow from the vent 30 to the air inlet 8.

Fig. 13 is a graph showing a change with time in the first embodiment. Fig. 13 (a) shows a change in the rotation state of the fan 2 with time. Fig. 13 (b) shows the change in the position of dust or the like with time.

As shown in fig. 13, when the control unit 41 rotates the fan 2 in the forward direction, air around the casing 4 is drawn into the casing 4 through the air inlet 8. As a result, dust and the like adhere to the outside of the filter 9 provided at the intake port 8. Next, when the control unit 41 rotates the fan 2 in the reverse direction, air outside the ion generating device 100 enters the air duct 10 from the air vent 30 and is released outside the ion generating device 100 from the air inlet 8. As a result, dust and the like adhering to the outside of the filter 9 start to fall. When the dust or the like falls to the vicinity of the air vent 30, the dust or the like is sucked by the fan 2. Dust and the like are sucked through the air vent 30 and then adhere to the inside of the body and the inside of the filter 9. Thereby, the inside of the body may be contaminated.

Therefore, in the ion generating device 100 according to embodiment 7, when the control unit 41 rotates the fan 2 in the forward direction and then rotates the fan 2 in the reverse direction, the reverse rotation of the fan 2 is suppressed until dust and the like fall from the outside of the filter 9 to the vicinity of the air vent 30 (within a predetermined time).

Fig. 14 is a graph showing the time-dependent change of embodiment 7. Fig. 14 (a) shows a change in the rotation state of the fan 2 with time. Fig. 14 (b) shows the change in the position of dust or the like with time.

As shown in fig. 14, when the control unit 41 rotates the fan 2 in the forward direction, air around the casing 4 is drawn into the casing 4 through the air inlet 8. As a result, dust and the like adhere to the outside of the filter 9 provided at the intake port 8. When the control unit 41 rotates the fan 2 in the reverse direction, air outside the ion generating device 100 enters the air duct 10 through the air vent 30 and is discharged outside the ion generating device 100 through the air inlet 8. As a result, dust and the like adhering to the outside of the filter 9 start to fall. The control unit 41 rotates the fan 2 in the forward direction or stops the rotation of the fan 2 until dust or the like falls in the vicinity of the air port 30. As a result, dust and the like directly fall.

According to the above configuration, even if dust and the like adhering to the outside of the filter 9 fall down and reach the vicinity of the air vent 30 where no filter is provided, the dust and the like are not sucked from the air vent 30. Therefore, contamination of the inside of the ion generating apparatus 100 can be prevented.

[ summaries ]

An ion generating device 100 according to a first aspect of the present invention is an ion generating device 100 including an ion generator 1 that generates ions and an illumination device 3, and is characterized in that the ion generator 1 or air in the vicinity of the ion generator 1 is heated by heat generated by the illumination device 3. Specifically, the present invention provides a heat generating device for heating an ionizer 1 or air in the vicinity of the ionizer 1 by heat generated by an illumination device 3, comprising: an illumination device 3 as a heating portion; and any one of the fan 2, the heating air duct 13, the heat conductor 14, and the heating air duct 15 as a heat transfer portion for transferring heat.

According to the above configuration, by heating the ionizer 1 or the air near the ionizer 1 by the heat generated by the lighting device 3, the condensation of the ionizer 1 can be prevented or eliminated.

The ion generating apparatus 100 according to the second aspect of the present invention is configured as follows: in the first aspect, the ionizer 1 and the illumination device 3 are disposed in the same air duct 10, and a fan 2 is provided as a blowing fan for blowing air along the air duct 10, and the air passing through the vicinity of the illumination device 3 is guided to the ionizer 1 or the vicinity of the ionizer 1 by the blowing fan, thereby heating the air in the vicinity of the ionizer 1 or the ionizer 1.

According to the above configuration, the air passes through the vicinity of the lighting device 3 and is heated by the heat generated by the lighting device 3, and the air in the vicinity of the

ionizer

1 or 1 is heated by the air, whereby the condensation of the ionizer 1 can be prevented or eliminated.

An ion generating apparatus 100 according to a third aspect of the present invention is configured as follows: in the second aspect, the blowing fan is an axial flow fan capable of switching the rotation direction between a forward direction and a reverse direction, and the axial flow fan is driven to rotate in the forward direction during normal driving, and is driven to rotate in the reverse direction during heating of the air in the ionizer 1 or in the vicinity of the ionizer 1.

According to the above configuration, by switching the rotation direction of the axial flow fan to the opposite direction, the air in the ionizer or the vicinity of the ionizer can be easily heated.

An ion generating apparatus 100 according to a fourth aspect of the present invention is configured as follows: in the third aspect, in addition to the air duct 10, a heating air duct 13 is provided for guiding air passing through the vicinity of the lighting device 3 to the ionizer 1 or the vicinity of the ionizer 1 when the axial flow fan is rotated in the reverse direction.

According to the above configuration, the air passes through the vicinity of the illumination device 3 and is heated by the heat generated by the illumination device 3, and the air can be efficiently guided to the ionizer 1 or the vicinity of the ionizer 1.

An ion generating apparatus 100 according to a fifth aspect of the present invention is configured as follows: in the third or fourth aspect, the ion sensor 11 is provided in the air duct 10 to detect an ion amount or an ion concentration, and the ion sensor 11 is provided at a position upstream of the ion generator 1 in an air flow direction when the axial flow fan is driven to rotate in a forward direction; when the axial flow fan is driven to rotate in the reverse direction, the position is on the downstream side of the ion generator 1 in the air flow direction.

According to the above configuration, when the ion generator 1 is normally driven, that is, when the axial flow fan is driven in the forward direction, the ions generated by the ion generator 1 can be prevented from being reduced by the ion sensor 11 and can be effectively released to the outside of the ion generator. Further, when detecting the ion amount or the ion concentration, the axial flow fan is rotated in the reverse direction, whereby the ion amount or the ion concentration can be appropriately detected.

An ion generating apparatus 100 according to a sixth aspect of the present invention is configured as follows: in the fifth aspect, the ion sensor 11 is disposed at a position shifted from the ion generator 1 in a rotational direction in which the axial flow fan is rotated in a reverse direction when viewed in the axial direction of the axial flow fan.

According to the above configuration, ions generated by the ion generator and transported in a vortex-like manner by the axial flow fan can be appropriately detected by the ion sensor 11.

In the ion generating device 100 according to the seventh aspect of the present invention, in the first aspect, the heat conductor 14 is provided, and the heat conductor 14 transmits the heat generated by the illumination device 3 to the ionizer 1 or the vicinity of the ionizer 1.

According to the above configuration, the heat generated by the illumination device 3 can be transferred to the ionizer 1 or the vicinity of the ionizer 1 through the heat conductor, thereby appropriately heating the air in the ionizer 1 or the vicinity of the ionizer 1.

An ion generating apparatus 100 according to an eighth aspect of the present invention is configured as follows: in the first aspect, the air supply fan is disposed in the same air duct 10 as the ionizer 1, and the air supply fan further includes a heating air duct 15 for dividing a part of the air sucked by the air supply fan and guiding the air to the ionizer 1 or the vicinity of the ionizer 1 after passing through the vicinity of the illumination device 3 in addition to the air duct 10.

An ion generating device 100 according to an eighth aspect of the present invention is an ion generating device 100 including an ionizer 1 for generating ions and an illumination device 2, and is configured as follows: an air duct 10 for connecting a first opening (air inlet 8) provided with a filter 9 and a second opening (air vent 30) not provided with a filter; a blower (fan 2) for blowing air along the air duct 10; the second opening (air vent 30) is disposed below the first opening (air inlet 8), the blower (fan 2) is an axial flow fan capable of switching the rotation direction to a forward direction or a reverse direction, the forward direction is an air flow direction from the first opening (air inlet 8) to the direction of the second opening (air vent 30), the reverse direction is an air flow direction from the second opening (air vent 30) to the direction of the first opening (air inlet 8), and when the axial flow fan is rotated in the reverse direction after the axial flow fan is rotated in the forward direction, the counter-rotation of the axial flow fan is suppressed within a predetermined time.

With the above configuration, dust and the like adhering to the filter 9 provided in the first opening (intake port 8) during forward rotation can be prevented from entering the interior of the ion generating device 100 through the second opening (vent 30) where no filter is provided during reverse rotation.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims. That is, embodiments in which technical means obtained by combining technical means are appropriately modified within the scope shown in the claims also fall within the technical scope of the present invention.

Industrial applicability

Description of the symbols

2 Fan (Heat transfer part, blower)

3 Lighting device (heating part)

4 casing

5 joint

6 connecting piece

7 screw socket

8 air inlet (first opening part)

9 Filter

10 ventilating duct

11 ion sensor

13 air duct for heating (Heat transfer part)

14 Heat conductor (Heat transfer part)

15 air duct for heating (Heat transfer part)

20 light emitting element

21 mounting plate

22 mounting part

23 cover body

24 island part

25 bridge part

26 human body induction sensor

27 notification lamp

28 front cover

29 rear cover

30 air vent (second opening part)

31 main substrate

41 control unit

42 power supply device

43 operation input unit

100 ion generating device

Claims

1. An ion generating device comprising an ion generator for generating ions and an illumination device,

heating the ionizer or air in the vicinity of the ionizer using heat generated by the lighting device,

the ion generating device further comprises a heat transfer part including an air duct and a blower,

the ion generator and the lighting device are arranged on the same air duct,

the blower blows air along the ventilation channel and is an axial flow fan capable of switching the rotation direction to a positive direction or a negative direction,

guiding the air passing through the vicinity of the lighting device to the ionizer or the vicinity of the ionizer by the blower, thereby heating the ionizer or the air in the vicinity of the ionizer by the heat transfer portion,

normally, the axial flow fan is driven to rotate in a positive direction, and

when the air in the ion generator or the vicinity of the ion generator is heated, the axial flow fan is driven to rotate in the reverse direction.

2. The ion generating device according to claim 1, further comprising a heating duct for guiding air passing through the vicinity of the lighting device to the ion generator or the vicinity of the ion generator when the axial flow fan is rotated in a reverse direction, in addition to the air duct.

3. The ion generating apparatus according to claim 1 or 2,

an ion sensor provided in the air duct and detecting an ion amount or an ion concentration,

the ion sensor is arranged at the upstream side of the ion generator in the air flowing direction when the axial flow fan is driven to rotate in the positive direction; when the axial flow fan is driven to rotate in the reverse direction, the position is on the downstream side of the ion generator in the air flow direction.

4. The ion generating device according to claim 1, wherein a heat conductor is provided for conducting heat generated by the illumination device to the ionizer or the vicinity of the ionizer.

5. An ion generating device provided with an ion generator for generating ions and an illumination device, comprising:

an air duct connecting the first opening portion provided with the filter and the second opening portion not provided with the filter;

a blower blowing air along the air duct;

the second opening portion is disposed below the first opening portion,

the blower is an axial flow fan capable of switching the rotation direction to a positive direction or a negative direction,

the positive direction is a direction in which air flows from the first opening portion to the second opening portion,

the reverse direction is a direction in which air flows from the second opening portion to the first opening portion,

when the axial flow fan is rotated in the forward direction and then rotated in the reverse direction, the reverse rotation of the axial flow fan is suppressed until the deposits adhering to the outside of the filter start to fall down to the vicinity of the second opening by the flow of the air rotated in the reverse direction.