JP6406112B2 - Chlorine dioxide generator - Google Patents

Description

  The present invention relates to a chlorine dioxide generator that generates chlorine dioxide and releases it to the surroundings.

  Chlorine dioxide generators that generate chlorine dioxide and discharge it to the surroundings to sterilize the interior of the vehicle are known. For example, the chlorine dioxide generator described in the following Patent Document 1 contains a solid medicine containing chlorite inside, and generates chlorine dioxide by irradiating the medicine with ultraviolet rays. It has become. The generated chlorine dioxide is discharged from the chlorine dioxide generator together with the air sent out by the fan.

International Publication No. 2011/118447

  The chlorine dioxide generator described in Patent Document 1 has a configuration in which almost all of the air sent out from the fan is discharged to the outside after passing through the inside of the cartridge filled with the medicine. For this reason, the ventilation resistance which air (and chlorine dioxide) receives when passing a cartridge is comparatively large, and it is thought that the flow velocity at the time of chlorine dioxide being discharged outside is controlled. In order to achieve a sufficient flow rate of the released chlorine dioxide and reach the chlorine dioxide in a wide range, it is necessary to mount a relatively large fan.

  In addition, during operation of the chlorine dioxide generator, noise may be generated from the internal cartridge due to the above-described ventilation resistance. Such noise is unfavorable because it gives the driver discomfort.

  The present invention has been made in view of such a problem, and an object of the present invention is to release chlorine dioxide at a sufficient flow rate without mounting a large fan and to suppress generation of noise. It is to provide a chlorine dioxide generating apparatus capable of performing the above.

In order to solve the above-described problems, a chlorine dioxide generator according to the present invention is a chlorine dioxide generator that generates chlorine dioxide and discharges it to the surroundings, and a cartridge that holds a medicine that is a source of chlorine dioxide. An LED board on which an LED for irradiating the medicine with ultraviolet rays is mounted, a fan for sending air toward the cartridge, and a plate disposed between the LED board and the cartridge, And a blocking plate that suppresses the arrival of chlorine dioxide to the LED substrate without hindering. Part of the air sent out from the fan passes through the first flow path, which is the flow path on the cartridge side relative to the blocking plate, and the other part of the air sent out from the fan flows on the LED board side relative to the blocking plate. It is comprised so that it may pass through the 2nd channel which is. The chlorine dioxide generator further includes an adjustment mechanism that changes the opening area at the inlet of the second flow path.

  In the chlorine dioxide generator having such a configuration, not all of the air sent out from the fan passes through the inside of the cartridge (medicine), but a part of the second flow path is closer to the LED substrate than the blocking plate. Pass through. Along with this, the flow rate of air and chlorine dioxide passing through the inside of the cartridge (first flow path) is reduced, and the ventilation resistance is also reduced, so that the generation of noise from the cartridge is suppressed.

  Moreover, since the ventilation resistance which the air which passes through a 2nd flow path receives is comparatively small, the flow velocity of the said air becomes large. Accordingly, if the air passing through the second flow path is combined with the air passing through the first flow rate and chlorine dioxide, the flow velocity when the air containing chlorine dioxide is released to the outside is increased. Can do.

  Furthermore, since the LED board is cooled by the air passing through the second flow path, an effect of suppressing the temperature rise of the LED board can be obtained.

  ADVANTAGE OF THE INVENTION According to this invention, the chlorine dioxide generator which can discharge | release chlorine dioxide at sufficient flow speed without mounting a large sized fan, and can suppress generation | occurrence | production of noise is provided.

It is a perspective view which shows the external appearance of the chlorine dioxide generator which concerns on embodiment of this invention. FIG. 2 is an exploded view of the chlorine dioxide generator shown in FIG. 1. It is a figure which shows the internal structure of the chlorine dioxide generator shown by FIG. It is a figure which shows the internal structure of the chlorine dioxide generator shown by FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In order to facilitate the understanding of the description, the same constituent elements in the drawings will be denoted by the same reference numerals as much as possible, and redundant description will be omitted.

  The chlorine dioxide generator 10 according to the embodiment of the present invention is a device that generates chlorine dioxide inside and discharges the chlorine dioxide to the surrounding space. The chlorine dioxide generator 10 is disposed in the vehicle interior and can disinfect the vehicle interior by releasing chlorine dioxide.

  As shown in FIG. 1, the entire chlorine dioxide generator 10 is configured as a substantially cylindrical device. The chlorine dioxide generator 10 releases chlorine dioxide in a state of being housed in a cup holder provided in the passenger compartment. On the upper side of the chlorine dioxide generator 10, an outlet 141 that is an outlet for chlorine dioxide is formed.

  The chlorine dioxide generator 10 includes a case 100, a duct closing lid 130, and an upper lid 140.

  The case 100 is a cylindrical container that occupies substantially the entire appearance of the chlorine dioxide generator 10. A space is formed inside the case 100, and an LED substrate 600 and a cartridge 400 (both not shown in FIG. 1), which will be described later, are stored in the space. The case 100 can be separated into a first member 110 and a second member 120 (see FIG. 2).

  The duct closing lid 130 is a lid fitted into a rectangular opening 101 provided on the side surface of the case 100. When the cartridge 400 is exchanged, the duct closing lid 130 is removed from the opening 101, and the cartridge 400 is removed and inserted through the opening 101. During normal use, the opening 101 is closed by a duct closing lid 130. Air and chlorine dioxide are prevented from leaking from the opening 101 by the duct closing lid 130.

  The upper lid 140 is a lid attached so as to cover the entire upper end portion of the case 100. The upper lid 140 is formed with a plurality of the outlets 141 already described. Chlorine dioxide generated in the chlorine dioxide generator 10 passes through each outlet 141 and is discharged upward.

  The internal structure of the chlorine dioxide generator 10 will be described with reference to FIGS. 2 and 3. In addition, illustration of the upper cover 140 is abbreviate | omitted in FIG. Inside the chlorine dioxide generator 10, a fan 200, a duct 300, a cartridge 400, a control board 500, an LED board 600, a blocking plate 700, and a partition plate 800 are disposed.

  The fan 200 is a centrifugal multiblade fan for creating a flow of air (and chlorine dioxide) inside the case 100. The fan 200 is housed in the lower part of the case 100 with the opening 201 serving as an air outlet facing upward. A portion of the fan 200 where the opening 201 is formed is fitted into a lower end of a duct 300 described later. For this reason, all of the air sent out from the fan 200 flows into the internal space of the duct 300 and flows upward in the duct 300.

  The duct 300 is a member for guiding air from the fan 200, and is disposed on the upper side of the fan 200. The duct 300 is open at the top and bottom, and is configured such that air flowing in from the lower side passes through the inside and escapes upward. An LED substrate 600, a blocking plate 700, and a cartridge 400, which will be described later, are held inside the duct 300. Of the internal space of the duct 300, a portion where the cartridge 400 is held, that is, a portion closer to the cartridge 400 than the blocking plate 700 is a flow path through which air from the fan 200 flows upward. Hereinafter, the channel is also referred to as “channel FP1”. The flow path FP1 corresponds to the “first flow path” of the present invention.

  The cartridge 400 is a rectangular container disposed inside the duct 300 (flow path FP1), and the inside thereof is filled with a medicine (not shown). As the drug, solid (granular) sodium chlorite mixed with an inorganic substance such as sepiolite and calcium chloride is used. In addition, such a chemical | medical agent is an example to the last, and another chemical | medical agent may be used if the chlorite which generate | occur | produces a chlorine dioxide by ultraviolet irradiation is contained.

  In the cartridge 400, at least the bottom wall and the side walls (two) on the LED substrate 600 side are both formed in a lattice shape. That is, a plurality of openings are formed in each of these walls. The drug is held by these lattice walls. For this reason, the ultraviolet rays from the LED substrate 600 pass through the side wall of the cartridge 400 and reach the medicine. In addition, the air from the fan 200 flows through the gap between the granular medicines after passing through the bottom wall. There is no wall in the upper part of the cartridge 400, and the cartridge 400 is open.

  The control board 500 is a control board for controlling the overall operation of the chlorine dioxide generator 10. The control board 500 is disposed in a space between the inner wall surface of the case 100 (first member 110) and the fan 200. A space in which the control board 500 is disposed and a flow path FP1 (and a flow path FP2 described later) through which air sent out from the fan 200 flows are separated by a duct 300. For this reason, the chlorine dioxide generated in the cartridge 400 does not reach the control board 500.

  The LED substrate 600 is a substrate for irradiating the medicine in the cartridge 400 with ultraviolet rays. Two LED substrates 600 are arranged in the duct 300. The LED substrates 600 have the same configuration and are arranged in parallel with each other with the cartridge 400 interposed therebetween.

  On the main surface of the LED substrate 600 facing the cartridge 400, a plurality of LEDs 601 that are ultraviolet light sources are mounted. The LED substrate 600 emits ultraviolet light to the medicine in the cartridge 400 by causing these LEDs 601 to emit light, and generates chlorine dioxide from the medicine.

  In practicing the present invention, any known ultraviolet light source can be used as long as it emits ultraviolet light alone or including ultraviolet light. That is, the ultraviolet light emitted from the ultraviolet light source does not need to be an ultraviolet light whose wavelength is only an ultraviolet wavelength (near ultraviolet light of 200 to 380 nm, far ultraviolet light of 10 to 200 nm, or extreme ultraviolet light of 10 to 10 nm). May be ultraviolet rays including visible light of 380 nm to 720 nm.

  A connector 602 is connected to the back surface side of the LED substrate 600, that is, the surface opposite to the surface on which the LEDs 601 are disposed. The connector 602 is for connecting the control board 500 and the LED board 600 with a cable 603 to perform communication and power supply between them.

  A temperature sensor 605 is provided on the surface of the LED substrate 600 on which the LED 601 is mounted. The temperature sensor 605 is a sensor for measuring the temperature of the LED substrate 600, and is specifically a thermistor. The temperature measured by the temperature sensor 605 is input to the control board 500.

  The blocking plate 700 is a flat plate made entirely of transparent acrylic. Similar to the LED substrate 600, two blocking plates 700 are arranged in the duct 300. The respective blocking plates 700 have the same configuration, and are arranged so as to be parallel to each other with the cartridge 400 interposed therebetween.

  Each blocking plate 700 is disposed at a position between the LED substrate 600 and the cartridge 400. The LED substrate 600 and the blocking plate 700 are parallel to each other, and a gap is formed between them. Since the blocking plate 700 is a transparent plate, the blocking plate 700 does not prevent the ultraviolet rays from reaching the cartridge 400 (drug).

  The position of the lower end of the blocking plate 700 is higher than the inner wall surface (bottom surface) of the duct 300. For this reason, a gap is formed between the blocking plate 700 and the bottom surface of the duct 300. Further, in the state shown in FIG. 3, the height of the lower end of the blocking plate 700 and the height of the lower end of the cartridge 400 coincide with each other.

  The upper part of the shielding plate 700 extends to a position higher than the upper end of the duct 300 and is inserted into a slit 802 (described later) formed in the partition plate 800.

  Because of such a configuration, a part of the air flowing into the duct 300 from the fan 200 flows into the space formed between the shielding plate 700 and the LED substrate 600 from below, It flows upward.

  Thus, the space formed between the shielding plate 700 and the LED substrate 600 is a flow path in which part of the air from the fan 200 flows upward. Hereinafter, the channel is also referred to as “channel FP2”. The flow path FP2 corresponds to the “second flow path” of the present invention.

  The partition plate 800 is a disc-shaped plate and is housed in the upper portion of the case 100. The lower surface of the partition plate 800 is in contact with the upper end of the duct 300. When the chlorine dioxide generator 10 is viewed from above, the outer diameter of the partition plate 800 and the inner diameter of the case 100 are substantially equal.

  A plurality of openings 801 are formed in a substantially central portion of the partition plate 800, specifically, at a position between the pair of blocking plates 700 and immediately above the cartridge 400. Air and chlorine dioxide that have passed through the cartridge 400, that is, air and chlorine dioxide that have passed through the flow path FP <b> 1 go upward through the opening 801 and are discharged to the outside from the outlet 141. A flow path formed in the space between the partition plate 800 and the upper lid 140, that is, a flow path from the opening 801 to the blowout port 141 is also referred to as “flow path FP3” below.

  A slit 802 is formed in the partition plate 800 at a position directly above each blocking plate 700. The width of the slit 802 is wider than the thickness of the blocking plate 700. Therefore, as shown in FIG. 3, even when the upper part of the blocking plate 700 is inserted into the slit 802, the air that has passed through the flow path FP2 passes through the slit 802 and is above the partition plate 800. It is possible to flow into the space (flow path FP3) (arrow AR5).

  The operation of the chlorine dioxide generator 10 will be described with reference to FIG. When the fan 200 is driven by the control performed by the control board 500, air is sent upward from the opening 201 of the fan 200 (arrow AR1). All of the air flows into the duct 300. Thereafter, a part of the air flows upward (arrow AR2) while passing through the inside of the cartridge 400, that is, the gap between the granular medicines.

  At this time, each LED 601 emits light by the control performed by the control board 500 and the LED board 600. The ultraviolet rays from the LED 601 pass through the blocking plate 700 and reach the medicine. The drug is irradiated with ultraviolet rays from both the left and right sides with respect to substantially the whole from the upper end to the lower end.

  As the medicine is irradiated with ultraviolet rays, chlorine dioxide is generated inside the cartridge 400. Chlorine dioxide is pushed away by the air sent from the fan 200 and flows upward along with the air (arrow AR2).

  Chlorine dioxide is a corrosive gas. However, in this embodiment, the chlorine dioxide is prevented from reaching the LED substrate 600 by the blocking plate 700. For this reason, chlorine dioxide does not reach the LED substrate 600, and corrosion of the LED or the like due to this does not occur.

  As described above, a part of the air sent out from the fan 200 flows upward along with the generated chlorine dioxide through the flow path FP1. Thereafter, it flows into the flow path FP3. Since the cartridge 400 is filled with the granular medicine, the ventilation resistance in the flow path FP1 is relatively large. For this reason, the flow rates of chlorine dioxide and air flowing into the flow path FP3 via the flow path FP1 are small.

  Another part of the air sent out from the fan 200 flows into the flow path FP2 through a gap formed on the lower side of the blocking plate 700, and flows upward in the flow path FP2 (arrow AR4). The ventilation resistance of the flow path FP2 is relatively small. For this reason, the flow velocity of the air flowing into the flow path FP3 via the flow path FP2 is large.

  As described above, the height of the lower end of the blocking plate 700 and the height of the lower end of the cartridge 400 coincide with each other. For this reason, the chlorine dioxide generated in the cartridge 400 does not flow into the flow path FP2.

  In the flow path FP3, the air and the chlorine dioxide (arrow AR3) that flowed in from the flow path FP1 merge with the high-flow-rate air (arrow AR5) that flows in from the flow path FP2. As a result, the flow rate of the gas (the air containing chlorine dioxide) flowing through the flow path FP3 becomes relatively large, so that the chlorine dioxide is expelled from the outlet 141 of the upper lid 140 to the outside (vehicle interior). Thus, in this embodiment, it is possible to increase the flow rate of the released chlorine dioxide without increasing the size of the fan 200.

  In addition, compared to a configuration in which all of the air from the fan 200 passes through the inside of the cartridge 400, in this embodiment, the flow rates of air and chlorine dioxide passing through the flow path FP1 are reduced, and the ventilation resistance is also reduced. ing. For this reason, generation of noise from the cartridge 400 is suppressed.

  Furthermore, in the present embodiment, the air that has flowed into the flow path FP2 flows along the surface of the LED substrate 600. Since the LED substrate 600 is cooled with air, a temperature increase due to heat generation of the LED substrate 600 is suppressed. This prevents the operation of the LED substrate 600 from becoming unstable due to heat generation.

  In the present embodiment, the internal flow paths (flow path FP1 and flow path FP3) from the cartridge 400 to the outlet 141 are formed so that the entire flow path direction is linear. The LED substrate 600 and the blocking plate 700 are arranged with their main surfaces along the flow path direction so as not to obstruct the flow of chlorine dioxide or the like or change the flow path direction.

  Chlorine dioxide and air flow vertically upward from the fan 200, but reach the blow-out port 141 without greatly changing the flow path direction in the middle, and are discharged to the outside as they are. As a result, since the ventilation resistance received by chlorine dioxide or the like is relatively small, generation of noise due to passage of chlorine dioxide or the like is further suppressed.

  The cartridge 400 for holding the medicine has a vertically long shape and is irradiated with ultraviolet rays from both sides. For this reason, the outer diameter of the chlorine dioxide generator 10 is relatively small, while the structure can irradiate the entire amount of the medicine with ultraviolet rays. In other words, a large amount of chlorine dioxide can be continuously released over a long period of time despite having a compact shape that can be stored in a cup holder provided in the passenger compartment.

  Note that the number of LED substrates 600 need not be limited to two, and may be four, for example. In this case, the cartridge 400 is surrounded by the LED substrate 600 from four directions, and the blocking plate 700 is disposed between the cartridge 400 and each LED substrate 600.

  The position (height) of the shielding plate 700 inside the chlorine dioxide generator 10 is not fixed at the position shown in FIG. In the present embodiment, the blocking plate 700 can be moved up and down by a drive mechanism (not shown). The operation of the drive mechanism is controlled by the control board 500. FIG. 4 shows a state where the blocking plate 700 has moved to the lower limit in the movable range.

  In the state shown in FIG. 4, the lower end of the shielding plate 700 is in contact with the inner wall surface (bottom surface) of the duct 300. For this reason, since the inlet of the flow path FP2 is closed, the air sent out from the fan 200 does not flow into the flow path FP2, and all of it flows upward in the flow path FP1.

  Note that the position (height) of the blocking plate 700 can be maintained at a position different from the position shown in FIGS. 3 and 4. In other words, it is possible to adjust the flow rate of the air flowing through the flow path FP2 by changing the size of the gap formed on the lower side of the blocking plate 700, that is, the opening area at the inlet of the flow path FP. ing.

  The control substrate 500 adjusts the flow rate of chlorine dioxide discharged from the outlet 141 by changing the position of the blocking plate 700.

  The control board 500 can also change the position of the blocking plate 700 based on the temperature of the LED board 600 measured by the temperature sensor 605. For example, when the temperature of the LED substrate 600 exceeds a predetermined threshold value, the blocking plate 700 is moved upward to promote cooling of the LED substrate 600.

  The chlorine dioxide generator 10 according to the present embodiment has a configuration in which main parts (the duct 300, the cartridge 400, the LED substrate 600, and the blocking plate 700) are housed inside a case 100 that is a cylindrical container. Yes. It may replace with such an aspect, and the aspect in which the said principal part is integrated in the inside of a vehicle air conditioner (for example, HVAC) may be sufficient.

  The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited to these specific examples. In other words, those specific examples that have been appropriately modified by those skilled in the art are also included in the scope of the present invention as long as they have the characteristics of the present invention. For example, the elements included in each of the specific examples described above and their arrangement, materials, conditions, shapes, sizes, and the like are not limited to those illustrated, but can be changed as appropriate. Moreover, each element with which each embodiment mentioned above is provided can be combined as long as technically possible, and the combination of these is also included in the scope of the present invention as long as it includes the features of the present invention.

10: Chlorine dioxide generator 141: Air outlet 200: Fan 400: Cartridge 500: Control board 600: LED board 601: LED
700: Blocking plates FP1, FP2: Flow path

Claims (3)

A chlorine dioxide generator (10) for generating chlorine dioxide and releasing it to the surroundings,
A cartridge (400) holding a medicine that is a source of chlorine dioxide;
An LED substrate (600) on which an LED (601) for irradiating the medicine with ultraviolet rays is mounted;
A fan (200) for sending air toward the cartridge;
A blocking plate (700) disposed between the LED substrate and the cartridge, wherein the blocking plate suppresses the arrival of the chlorine dioxide to the LED substrate without interfering with the arrival of the ultraviolet rays with respect to the medicine; With
Part of the air sent out from the fan passes through the first flow path (FP1) that is the flow path on the cartridge side of the blocking plate
The other part of the air sent out from the fan is configured to pass through the second flow path (FP2) which is the flow path on the LED board side than the blocking plate ,
The chlorine dioxide generator further comprising an adjusting mechanism for changing an opening area at the inlet of the second flow path . The first channel is formed so that the channel direction is linear.
2. The chlorine dioxide generator according to claim 1, wherein the LED substrate is disposed in a state where a main surface thereof is along the flow path direction. The chlorine dioxide generator according to claim 1 , wherein the adjustment mechanism changes the opening area according to the temperature of the LED substrate.

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