JP6369383B2 - 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

  In the chlorine dioxide generator described in Patent Document 1, an LED substrate is disposed inside. The LED substrate is a substrate on which a plurality of LEDs that are ultraviolet light generation sources are mounted, and is disposed in a state where the surface on which the LEDs are mounted faces the medicine.

  For this reason, when chlorine dioxide is generated from the chemical by irradiation with ultraviolet rays, the LED substrate is exposed to chlorine dioxide. Since chlorine dioxide is a corrosive gas, there is a possibility that the LED and the like will deteriorate even when used for a relatively short period of time.

  The present invention has been made in view of such a problem, and an object of the present invention is to prevent deterioration of LEDs and the like due to exposure to chlorine dioxide, and thereby chlorine dioxide that can be used for a long time. It is to provide a generator.

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. And an LED substrate on which an LED for irradiating the medicine with ultraviolet rays is mounted. Between the LED substrate and the cartridge, there is provided a blocking plate that does not prevent the ultraviolet rays from reaching the drug and suppresses chlorine dioxide from reaching the LED substrate. An adsorbent that adsorbs chlorine dioxide is disposed between the LED substrate and the blocking plate.

  In the chlorine dioxide generator having such a configuration, since the shielding plate is provided between the LED substrate and the cartridge (medicine), the chlorine dioxide generated from the chemical is reliably prevented from reaching the LED substrate. The Since corrosion of LED and the like by chlorine dioxide is suppressed, the chlorine dioxide generator can be used for a relatively long period of time.

  The blocking plate suppresses the arrival of chlorine dioxide to the LED substrate, but does not prevent the ultraviolet rays from reaching the drug. That is, the shielding plate is a plate formed of a material at least a part of which is transparent to the ultraviolet wavelength region. For this reason, the function to generate chlorine dioxide is not suppressed by the blocking plate.

  ADVANTAGE OF THE INVENTION According to this invention, deterioration of LED etc. by being exposed to chlorine dioxide can be prevented, and, thereby, the chlorine dioxide generator which can be used for a long period of time 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 perspective view which shows the other example of a shielding board. It is a figure which shows the example by which the adsorbent was arrange | positioned between the shielding board and the LED board.

  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. A portion of the internal space of the duct 300 where the cartridge 400 is held is a flow path through which air from the fan 200 flows upward. Hereinafter, the channel is also referred to as “channel FP1”.

  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. The space in which the control board 500 is arranged and the flow path FP1 through which the air sent out from the fan 200 flows are separated by the 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.

  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 lower end of the shielding plate 700 is in contact with the inner wall surface (bottom surface) of the duct 300. Further, the upper end of the shielding plate 700 extends to the upper end position of the duct 300 and is in contact with the lower surface of the partition plate 800. For this reason, in the duct 300, the space in which the cartridge 400 is disposed and the space in which the LED substrate 600 is disposed are separated by the blocking plate 700. That is, the blocking plate 700 prevents the gas from moving from one space to the other space.

  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. The air and chlorine dioxide that have passed through the cartridge 400 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 FP2” below.

  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 and flows upward while passing through the inside of the cartridge 400, that is, the gap between the granular medicines (arrow AR2).

  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.

  The chlorine dioxide and air that have passed through the cartridge 400 flow into the flow path FP2 through the opening 801 of the partition plate 800. Thereafter, it flows further upward in the flow path FP2 (arrow AR3), and is discharged from the outlet 141 of the upper lid 140 to the outside (vehicle interior).

  As described above, in the chlorine dioxide generator 10 according to the present embodiment, since the shielding plate 700 is provided between each LED substrate 600 and the cartridge 400 (medicine), chlorine dioxide generated from the chemical is LED. Reaching the substrate 600 is reliably prevented. Since corrosion of the LED 601 and the like by chlorine dioxide is suppressed, the chlorine dioxide generator 10 can be used for a relatively long period of time.

  In the present embodiment, the internal flow paths (flow path FP1 and flow path FP2) 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 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.

  In the present embodiment, the whole shielding plate 700 is formed as a transparent acrylic plate. Instead of such a mode, the blocking plate 700 may be a mode in which only a part thereof is transparent.

  FIG. 4 shows an example where the blocking plate 700 is formed as described above. In this modification (hereinafter referred to as “blocking plate 700A”), the entire blocking plate 700A is formed of an opaque plate. However, an opening 701 is formed at a position facing the LED 601, and a transparent acrylic plate is fitted in each of the openings 701. The ultraviolet rays from the LED 601 pass through the opening 701 and the acrylic plate and reach the medicine in the cartridge 400. On the other hand, the chlorine dioxide generated from the medicine is prevented from passing through the opening 701 by the acrylic plate. Even with such a blocking plate 700A, the same effects as those of the embodiment described with reference to FIG. 3 are obtained.

  As described so far, the chlorine dioxide is prevented from reaching the LED substrate 600 by the blocking plate 700. However, it is also conceivable that chlorine dioxide enters from the gaps between the members, and a trace amount of chlorine dioxide reaches the space between the LED substrate 600 and the blocking plate 700.

  Therefore, as illustrated in FIG. 5, the adsorbent 900 may be disposed in the space between the LED substrate 600 and the blocking plate 700. The adsorbent 900 is activated carbon formed in a plate shape, and an opening 901 is formed at a position facing the LED 601.

  Even if a small amount of chlorine dioxide enters the space between the LED substrate 600 and the blocking plate 700, the chlorine dioxide is adsorbed by the adsorbent 900. For this reason, it is further suppressed that chlorine dioxide reaches the LED 601 and the like.

  Since the ultraviolet rays pass through the opening 901, the arrival of the ultraviolet rays at the cartridge 400 (drug) is not hindered by the adsorbent 900.

  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 400: Cartridge 500: Control board 600: LED board 601: LED
700, 700A: Blocking plate 701: Opening 900: Adsorbent 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;
Between the LED substrate and the cartridge,
A blocking plate (700) is provided that prevents the arrival of the ultraviolet rays on the drug and suppresses the arrival of the chlorine dioxide on the LED substrate ,
A chlorine dioxide generator , wherein an adsorbent (900) that adsorbs the chlorine dioxide is disposed between the LED substrate and the blocking plate . Internal flow paths (FP1, FP2) from the cartridge to the blowout port (141) for releasing the chlorine dioxide to the outside are formed so that the flow path 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. A plurality of the LED substrates are provided,
The chlorine dioxide generator according to claim 1, wherein the cartridge is disposed in a state of being sandwiched between the LED substrates facing each other.

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