UV irradiation device

Abstract

To provide an ultraviolet irradiation device capable of reducing noise of an occupant detection signal output from a vehicle due to external electromagnetic waves.SOLUTION: An ultraviolet irradiation device 10 is mounted on a mounting surface in a chamber of a vehicle and irradiates the chamber with ultraviolet rays, and includes: a substrate 70 disposed along the mounting surface; and a connector part 75 into which an occupant detection signal of a vehicle is input via a signal line from a direction along the plate surface of the substrate 70. A plate-like conductive plate 109 having conductivity is disposed so as to be overlapped on the side of an opposite surface 75B on a side opposite to a facing surface 75A facing the mounting surface of the connector part 75.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The technology disclosed in this specification relates to an ultraviolet irradiation device. [Background technology]

[0002] Conventionally, an irradiation device for irradiating light has been known, for example, as described in Patent Document 1. The interior light of Patent Document 1 is attached to a vehicle and includes a diode that emits ultraviolet light toward the outside in the lamp body. With such an interior light for a vehicle, it is possible to sterilize the irradiated area in the vehicle cabin by using ultraviolet light.

[0003] In order to prevent ultraviolet light from being erroneously applied to passengers in the vehicle cabin, the interior light is provided with passenger detection sensors that detect the presence or absence of passengers in the vehicle cabin, such as an ignition sensor that detects the ignition of the engine and a lock sensor that detects whether the doors are locked or unlocked. The ultraviolet light source is configured to be turned on in response to a signal being input from the passenger detection sensor indicating that no passengers are in the vehicle cabin. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2012-254673 A Summary of the Invention [Problem to be solved by the invention]

[0005] In recent years, due to the further increase in the need for sterilization, there is an increasing demand to install a retrofit type ultraviolet irradiation device in vehicles that do not have an ultraviolet light source. In addition, an occupant detection sensor is connected to such an ultraviolet irradiation device to prevent ultraviolet light from being irradiated accidentally on occupants in the vehicle cabin.

[0006] Specifically, a signal detected by an occupant detection sensor is drawn from an output section provided on the instrument panel by a cable and input to an input section of an ultraviolet irradiation device attached to, for example, the ceiling of the vehicle.

[0007] However, with this configuration, the cable must be as long as 1 to 3 meters to reach the ceiling, making it susceptible to electromagnetic waves emitted by smartphones and other electronic devices that passengers bring into the vehicle, and there is a risk that noise will cause malfunctions.

[0008] The technology disclosed in this specification has been made in consideration of the above-mentioned circumstances, and aims to provide an ultraviolet irradiation device that can reduce noise caused by external electromagnetic waves in occupant detection signals output from a vehicle. [Means for solving the problem]

[0009] The technology disclosed in this specification for solving the above problems is an ultraviolet irradiation device that is attached to a mounting surface inside a vehicle cabin and irradiates ultraviolet rays toward the cabin, and includes a base plate arranged along the mounting surface, and a connector portion to which a vehicle occupant detection signal is input via a signal line from a direction along the plate surface of the base plate, and a conductive plate portion having a conductive plate shape is superimposed on the opposite side of the connector portion opposite the opposing surface that faces the mounting surface.

[0010] According to the above-mentioned configuration, the conductive plate can suppress electromagnetic waves that affect the wiring inside the connector from the opposite side of the connector. Moreover, since a pseudo-capacitor is formed between the signal line arranged inside the connector and the conductive plate, the pseudo-capacitor reduces noise in the occupant detection signal, and the occupant detection signal can be input with high accuracy to the ultraviolet irradiation device.

[0011] The connector portion is arranged on a board-side facing surface of the board that faces the mounting surface, and the conductive plate portion is arranged on the board-side opposite surface opposite the board-side facing surface, rises toward the board, and is inserted into an insertion hole provided in the board, and may be provided with a conductive extension portion that covers the periphery of the connector portion.

[0012] According to the above configuration, since the conductive plate portion surrounds the periphery of the connector portion, the capacitance of the pseudo capacitor is increased, so that noise in the occupant detection signal input to the ultraviolet irradiation device can be further reduced.

[0013] The conductive extension may be conductively connected to a discharge circuit provided on the substrate. According to the above configuration, the conductive extension can be utilized to form a discharge path of the ultraviolet ray irradiation device.

[0014] The substrate may include a conductive substrate shield portion that covers the substrate-side opposing surface opposite the substrate-side opposing surface that faces the mounting surface, and the conductive plate portion may be integrally connected to the substrate shield portion.

[0015] According to the above-mentioned configuration, the conductive board shield portion can suppress electromagnetic waves that affect the board from the side opposite to the board side of the board. Also, since the board shield portion and the conductive plate portion are integrally connected, the number of parts can be reduced and the configuration can be simplified compared to a configuration in which the board shield portion and the conductive plate portion are separate parts. Effect of the Invention

[0016] According to the technology disclosed in this specification, it is possible to reduce noise caused by external electromagnetic waves in an occupant detection signal output from a vehicle. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 is a perspective view of a deep ultraviolet irradiation device according to a first embodiment. [Diagram 2] Exploded perspective view of deep ultraviolet irradiation device [Diagram 3]A perspective view of the inside of a deep ultraviolet irradiation device [Figure 4] Perspective view of sheet metal shield [Diagram 5] Plan view of deep ultraviolet irradiation equipment [Figure 6] Section II of Figure 5 [Figure 7] Partially enlarged perspective view of a deep ultraviolet irradiation device according to a second embodiment [Figure 8] FIG. 13 is a partially enlarged perspective view of a deep ultraviolet irradiation device according to another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] <Embodiment 1> A first embodiment in which the ultraviolet irradiation device disclosed in this specification is applied to a deep ultraviolet irradiation device 10 that emits deep ultraviolet light will be described with reference to Figs. 1 to 6. Each drawing shows an X-axis, a Y-axis, and a Z-axis, and each axis direction is drawn so as to be a common direction in each drawing. In the following description, the X-axis direction is the right direction or width direction, the Y-axis direction is the front direction, and the Z-axis direction is the upward direction, but the directions are not limited to this embodiment. In addition, for multiple identical members, a reference symbol may be attached to one member and the reference symbols of the other members may be omitted.

[0019] The deep ultraviolet irradiation device 10 is configured to include a first substrate 55 on which a deep ultraviolet LED is mounted, a second substrate (an example of a substrate) 70 on which a visible light LED 80 is mounted, and a housing 11 which is generally shaped like a flat box and which houses the first substrate 55 and the second substrate 70 therein.

[0020] The housing 11 is made of resin, and is configured to include two covers 12, 32 that cover the plate surface of the approximately rectangular holding member 40 from both the front and back (upper and lower) sides, as shown in Fig. 2. In detail, the holding member 40 is made of resin, and includes a plate-shaped holding plate portion 41 that is approximately rectangular, and a frame-shaped frame portion 42 that rises from the peripheral portion of the holding plate portion 41 in the up-down direction (Z direction), and the housing 11 is configured to include two covers, an upper cover 12 that is shallow dish-shaped as a whole and covers the upper surface of the holding plate portion 41 and is fitted inside the frame portion 42, and a lower cover 32 that is plate-shaped and covers the lower surface of the holding plate portion 41 and is fitted inside the frame portion 42. The deep ultraviolet ray irradiation device 10 is attached to the vehicle with the upper cover 12 facing a mounting surface such as a ceiling of the vehicle.

[0021] The ceiling wall 13 of the upper cover 12 of the housing 11, which is arranged opposite the upper surface of the retaining plate portion 41, is composed of a front ceiling wall 14 that is inclined rearward and upward from its front end and covers approximately 1 / 3 of the front portion of the retaining plate portion 41, and a rear ceiling wall 15 that extends horizontally from the front ceiling wall 14 and covers approximately 2 / 3 of the rear portion of the retaining plate portion 41 in a state parallel to the retaining plate portion 41 (see Figure 1).

[0022] A cover-side peripheral wall 16 that rises diagonally downward and outward is provided on the peripheral edge of the ceiling wall 13 of the upper cover 12. The outer circumferential dimension of the tip (lower end) in the rising direction of this cover-side peripheral wall 16 is set to a dimension that allows it to be fitted inside the frame-shaped portion 42 of the holding member 40 described above.

[0023] Of the cover-side peripheral wall 16, a front wall 17 extending adjacent to the front end of the front ceiling wall 14 has a plurality of slit-shaped exhaust ports 18 extending vertically across the front ceiling wall 14 (see FIG. 5). Also, of the cover-side peripheral wall 16, a rear wall 21 extending adjacent to the rear end of the rear ceiling wall 15 has an opening 22 for a connector jack, an opening 23 for a remote control jack, and an opening 24 for a slide switch timer arranged side by side (see FIG. 1).

[0024] The upper cover 12 is fixed to the holding member 40 by fastening bolts B1 to a plurality of cylindrical upper cover fastening portions 46 (see Figs. 2 and 3) rising from the holding plate portion 41 of the holding member 40. When the upper cover 12 is fixed to the holding member 40, a space is formed between the ceiling wall 13 of the upper cover 12 and the holding plate portion 41.

[0025] In addition, when the upper cover 12 is fixed to the holding member 40, the lower end of the cover-side peripheral wall 16 other than the above-mentioned front wall 17 is set to have a gap between it and the holding plate portion 41 of the holding member 40, and air can be sucked into the internal space of the housing 11 through this gap. In the following description, within the internal space of the housing 11, the space below the front ceiling wall 14 is referred to as a front space R1 (not shown), the space below the rear ceiling wall 15 is referred to as a rear space R2 (see FIG. 6), and the gap between the cover-side peripheral wall 16 and the holding plate portion 41 is referred to as an intake port. The opening area of ​​the entire intake port is set to be larger than the opening area of ​​the entire exhaust port 18 described above.

[0026] On the other hand, the lower cover 32 of the housing 11 is in the form of a substantially rectangular plate, and is slightly curved overall so that the central portion bulges slightly downward. The outer circumferential dimensions of the lower cover 32 are set to a dimension that allows it to be fitted inside the frame-shaped portion 42 of the holding member 40 described above.

[0027] 2, locking portions 33 protrude outward from the center of each of the four sides (edges) of lower cover 32. Lower cover 32 is fixed to holding member 40 by locking these locking portions 33 with hole edges of locking holes 47 provided in holding plate portion 41 of holding member 40 described above.

[0028] A housing side opening 35 that is rectangular in shape and elongated in the width direction (left-right direction) and penetrates the plate surface is provided in a portion of the lower cover 32 that corresponds to the front ceiling wall 14 of the upper cover 12 described above (a portion of the portion that corresponds to the front space R1).

[0029] Meanwhile, in the holding member 40 in a state where it is assembled with the lower cover 32, a holding member-side opening (not shown) is provided penetrating the plate surface at a position facing the housing-side opening 35 of the holding plate portion 41. In other words, in a state where the lower cover 32 and the holding member 40 are assembled, the housing-side opening 35 and the holding member-side opening are in a state of vertical communication. A heat dissipation member 50 is fitted into these openings in a state of communication.

[0030] The heat dissipation member 50 is made of aluminum or an aluminum alloy, and has two circular light-transmitting holes (not shown) for transmitting light emitted from two deep ultraviolet LEDs arranged inside the housing 11 to the outside of the housing 11 as described later. The heat dissipation member 50 is positioned with respect to the holding member 40 and the lower cover 32 with the lower surface exposed to the outside of the housing 11 and the upper surface exposed to the inside of the housing 11 (inside the front space R1).

[0031] Two first boards 55 are attached to the heat dissipation member 50, which is positioned on the holding member 40 and the lower cover 32, by fastening bolts B2. The two first boards 55 are attached to the heat dissipation member 50, lined up in the left-right direction and crossing each other to form a flattened V-shape when viewed from the front.

[0032] The first substrate 55 is made of aluminum or an aluminum alloy. In a state where the first substrate 55 is attached to the heat dissipation member 50, a deep ultraviolet LED (not shown) is mounted on the lower surface of the first substrate 55 at a position facing the above-mentioned light-transmitting hole of the heat dissipation member 50. As described above, the two first substrates 55 are arranged in a crossing state so as to form a flat V-shape when viewed from the front, so that the top surface of each deep ultraviolet LED faces slightly outward (left and right direction) from below.

[0033] Deep UV-LEDs are deep UV-LEDs that irradiate deep UV rays (100 to 280 nm) that have a short wavelength among ultraviolet rays. The wavelength of deep UV rays irradiated by these deep UV-LEDs is preferably within the range of 200 to 280 nm.

[0034] The deep ultraviolet LEDs adopt a top-illuminating type deep ultraviolet LED that irradiates from the end face (top face) opposite to the first substrate 55 when mounted on the first substrate 55. The directivity angle of these deep ultraviolet LEDs is within a range of 120 degrees centered on an axis perpendicular to the top face.

[0035] A cooling fan 60 is accommodated in the rear space R2 of the housing 11. The cooling fan 60 is fastened to the holding member 40 by a bolt B3 in a state where the cooling fan 60 is arranged side by side with respect to the first substrate 55 in a direction along the ceiling wall 13. Note that "side by side" refers to an arrangement in which the plate surface of the first substrate 55 and the cooling fan 60 do not overlap when the deep ultraviolet irradiation device 10 is viewed in a plan view, and includes a case where the heights in the vertical direction are misaligned. In this embodiment, the cooling fan 60 is arranged slightly above the first substrate 55.

[0036] The cooling fan 60 is configured to suck up air from below and blow it forward, and the air outlet 62, which protrudes forward from the cylindrical main body 61 in the shape of a flattened square tube, is disposed at a position spaced above the upper surfaces of the two first boards 55. With this configuration, the space between the upper surface of each first board 55 and the ceiling surface of the housing 11 forms an exhaust path from the air outlet 62 of the cooling fan 60 to the exhaust outlet 18 of the housing 11.

[0037] A part of the air drawn into the rear space R2 of the housing 11 from the intake port is drawn into the cooling fan 60. Then, the air passes through the cooling fan 60 and is discharged forward from the air outlet 62 of the cooling fan 60, passes through the upper surface (exhaust path) of the first board 55, and is exhausted to the outside of the housing 11 from the exhaust port 18. That is, the first board 55 can be efficiently cooled from the upper surface side by the wind of the cooling fan 60.

[0038] In addition, a portion of the air sucked into the rear space R2 of the housing 11 from the intake port flows forward along the inner wall (cover side peripheral wall 16) of the housing 11, into the front space R1, and is exhausted to the outside of the housing 11 from the exhaust port 18.

[0039] 3, a second board 70 is accommodated in the rear space R2 of the housing 11. The second board 70 is made of an insulating material, is disposed below the cooling fan 60 (on the holding member 40 side), and is fastened to the holding member 40 by a bolt B4.

[0040] Visible light LEDs 80 are disposed on the left and right sides of cooling fan 60. Visible light LEDs 80 are mounted on second board 70 in a form capable of emitting light toward the left and right sides (outside) of housing 11. Note that a through hole 27 is provided in a portion (side wall 26) of cover-side peripheral wall 16 of upper cover 12 of housing 11 that corresponds to visible light LEDs 80 (see FIG. 1 ) to transmit light emitted from visible light LEDs 80 to the outside.

[0041] A shielding sheet metal (an example of a substrate shielding part) 100 is disposed between the second substrate 70 and the holding member 40 (holding plate part 41). The shielding sheet metal 100 is made of a conductive material, and includes a main body part 101 disposed opposite the second substrate 70, side standing walls 102 rising upward from substantially the entire left and right side edge parts of the main body part 101, and a rear standing wall 106 rising upward from a right part in the width direction (X direction) of a rear edge part of the main body part 101. In addition, in Fig. 2 and Fig. 3, the shielding sheet metal 100 is darkly shaded to make it easy to distinguish the shielding sheet metal 100.

[0042] A pair of left and right locking pieces 104 are provided at positions near the front and rear ends of each side standing wall 102, respectively, so as to extend upward from the side standing wall 102. A front ground connection part 103F is provided in front of the right side standing wall 102R, rising upward on the inner side of the side standing wall 102R in the width direction (X direction). A rear ground connection part 103R is provided behind the left side standing wall 102L, rising upward on the inner side of the side standing wall 102L in the width direction.

[0043] The shield metal sheet 100 is positioned relative to the holding member 40 by a plurality of holes 107 provided in portions corresponding to bolt fastening portions for the second board 70 and the holding member 40 of the cooling fan 60. In addition, the shield metal sheet 100 is locked to the second board 70 by locking the locking claws 105 cut and raised on the above-mentioned locking pieces 104 with the upper surface of the second board 70.

[0044] When the shielding sheet metal 100 and the second substrate 70 are positioned relative to the holding member 40, the front ground connection portion 103F and the rear ground connection portion 103R of the shielding sheet metal 100 described above are passed through the connection hole 71 provided in the second substrate 70 and are solder-connected to a discharge circuit (not shown) formed on the second substrate 70 (see FIG. 3).

[0045] In this way, the shielding metal sheet 100 is superimposed on the second substrate 70 so as to cover the underside 70B (an example of the surface opposite the substrate) of the second substrate 70, thereby making it possible to suppress electromagnetic waves that affect the second substrate 70 and the mounted components from the underside 70B side of the second substrate 70.

[0046] 3, a connector jack (an example of a connector portion) 75, a remote control jack 76, and a slide switch timer 77 are arranged side by side from the left side at the rear end of an upper surface (an example of a surface facing the substrate) 70A of the second substrate 70. The rear ends of the remote control jack 76 and the slide switch timer 77 extend rearward from the second substrate 70.

[0047] The rear wall 106 of the shield sheet metal 100 described above rises in portions corresponding to the remote control jack 76 and the slide switch timer 77, and has openings 108 for passing through the remote control jack 76 and the slide switch timer 77. The opening 22 for the connector jack, the opening 23 for the remote control jack, and the opening 24 for the slide switch timer provided in the rear wall 21 of the upper cover 12 described above are provided at positions corresponding to these.

[0048] The connector jack 75 is box-shaped with an opening at the rear, and is fixed to the upper surface 70A of the second board 70 by a fixing means such as an adhesive. The connector jack 75 is a part that fits a vehicle-side connector (not shown) provided at the end of the wiring for power supply, ignition signal, and ground connection drawn from the instrument panel of the vehicle from the rear to the front, i.e., in a direction along the plate surface of the second board 70, and conducts with the circuit on the second board 70. When the vehicle-side connector is fitted into the connector jack 75, the wiring for power supply, ignition signal, and ground connection is arranged along the plate surface of the second board 70.

[0049] The above-mentioned shielding sheet metal 100 extends to a range where it overlaps with the connector jack 75 in a plan view. That is, the region of the shielding sheet metal 100 that overlaps with the connector jack 75 (the region surrounded by a dotted line in FIG. 4, hereinafter referred to as a connector overlapping portion (one example of a conductive plate portion) 109) suppresses electromagnetic waves that affect signals transmitted from the vehicle within the connector jack 75 from the lower surface 70B side of the second substrate 70. In addition, the connector overlapping portion 109 forms a pseudo capacitor between the wiring (signal line) extending from the vehicle within the connector jack 75, thereby reducing noise in the signal transmitted from the vehicle.

[0050] The deep ultraviolet irradiation device 10 of the present embodiment described above can be used for the purpose of sterilizing the passenger compartment (one example of the interior) of a vehicle such as a taxi. When the deep ultraviolet irradiation device 10 of the present embodiment is attached to the ceiling of the passenger compartment (rear seat) of a vehicle such as a taxi, the two deep ultraviolet LEDs are inclined from the horizontal direction toward the outside, so that sterilization can be performed by irradiating up to a high position on the side of the vehicle. Such irradiation of deep ultraviolet rays can be performed, for example, in a hangar after operation, or during waiting time for passengers or during out-of-service time if a separator with a deep ultraviolet cut film is provided between the front and rear seats.

[0051] Next, the effect of the deep ultraviolet ray irradiation device 10 of this embodiment is described. The deep ultraviolet ray irradiation device 10 includes a second substrate 70 arranged along the mounting surface of the vehicle, and a connector jack 75 to which an ignition signal (occupant detection signal) of the vehicle is inputted by a signal line from a direction along the plate surface of the second substrate 70. A conductive plate-shaped connector overlapping portion 109 is overlapped and arranged on a lower surface (an example of an opposite surface) 75B side of the connector jack 75 opposite to an upper surface (an example of an opposite surface) 75A facing the mounting surface.

[0052] According to the above configuration, the electromagnetic waves that affect the signal line (wiring) arranged inside the connector jack 75 from the lower surface 75B side of the connector jack 75 can be suppressed by the connector overlapping portion 109 of the shielding sheet metal 100. Moreover, since a pseudo capacitor is formed between the signal line arranged inside the connector jack 75 and the connector overlapping portion 109, the pseudo capacitor reduces noise in the ignition signal, and a highly accurate ignition signal can be input to the deep ultraviolet ray irradiation device 10.

[0053] The second substrate 70 is provided with a conductive shielding sheet metal 100 which covers a lower surface 70B opposite to an upper surface 70A which faces the mounting surface of the vehicle, and the shielding sheet metal 100 is configured (integrally) to include a connector overlapping portion 109.

[0054] According to the above configuration, electromagnetic waves affecting the second substrate 70 from the lower surface 70B side of the second substrate 70 can be suppressed by the conductive shielding sheet metal 100. In addition, since the shielding sheet metal 100 is configured integrally with the connector overlapping portion 109, the number of parts can be reduced and the configuration can be simplified compared to a configuration in which the connector overlapping portion 109 is a separate part.

[0055] <Embodiment 2> Next, a second embodiment will be described with reference to Fig. 7. In the following, only configurations different from the first embodiment will be described, and the same configurations as those in the first embodiment will be given the same reference numerals, and duplicated explanations will be omitted.

[0056] In the above-mentioned embodiment 1, a configuration was shown in which the connector overlapping portion 109 of the conductive shielding sheet metal 100 was superimposed on the underside 75B side of the connector jack 75. However, the deep ultraviolet ray irradiation device of this embodiment differs from the above-mentioned embodiment 1 in that the shielding sheet metal 110 is configured to surround the periphery of the connector jack 75.

[0057] Specifically, shield metal sheet 110 is raised from the left end of connector overlapping portion 119 toward second board 170, and is inserted into slit (one example of an insertion hole) 178 provided in second board 170 along the left end of connector jack 75, and is provided with conductive extension portion 111 bent along the outer surface of connector jack 75 so as to cover left side surface 75C, upper surface 75A, and right side surface (not shown) of connector jack 75. In addition, the portion of conductive extension portion 111 inserted into slit 178 is soldered to a discharge circuit (not shown) provided on second board 170.

[0058] According to the above configuration, a portion of the shielding metal sheet 110 surrounds the connector jack 75, thereby increasing the capacitance of the pseudo-capacitor formed between the connector overlap portion 119 and the conductive extension portion 111 of the shielding metal sheet 110 and the signal line (wiring) arranged within the connector jack 75, thereby further reducing noise in the ignition signal input to the ultraviolet irradiation device.

[0059] Furthermore, according to the above configuration, the conductive extension 111 can be used to form a discharge path for the ultraviolet ray irradiation device.

[0060] <Other embodiments> The technology disclosed in this specification is not limited to the embodiments described above and illustrated in the drawings, and for example, the following embodiments are also included within the technical scope.

[0061] (1) In the above embodiment, the connector jack 75 is disposed on the upper surface 70A of the second substrate 70, and the shield metal plate 100 (connector overlapping portion 109) is overlapped below the second substrate 70. However, the connector portion may be disposed in line with the substrate. In that case, the conductive plate portion may be provided separately from the substrate shield portion.

[0062] (2) In the above embodiment, the deep ultraviolet ray irradiation device 10 is configured to be operated based on the vehicle ignition signal. However, the types of occupant detection signals, such as door lock signals, other than the ignition signal, are not limited to those in the above embodiment.

[0063] (3) In the above embodiment, the shield metal plate 100, 110 is provided to cover the entire lower surface of the second substrate 70, 170, but the technical scope also includes a configuration in which the lower surface of the substrate is not covered by a substrate shield portion. In short, it is sufficient that the opposing surface of the connector portion is covered by a conductive plate portion.

[0064] (4) In the above-mentioned embodiment 2, the conductive extension portion 111 is used to establish a conductive connection between the shield metal plate 110 and the discharge circuit of the second substrate 170. However, instead of using the conductive extension portion 111, a separate ground connection portion may be provided as in embodiment 1.

[0065] (5) In the above embodiment 2, the conductive extension portion 111 extends integrally from the shield metal sheet 110 (connector overlap portion 119). However, as shown in FIG. 8, the periphery (side and top surfaces) of the connector portion can also be surrounded by a separate conductive plate portion 120. [Explanation of symbols]

[0066] 10: deep ultraviolet irradiation device (ultraviolet irradiation device), 11: housing, 70, 170: second board (board), 70A: upper surface (surface facing the board), 70B: lower surface (surface opposite the board), 75: connector jack (connector portion), 75A: upper surface (opposite surface), 75B: lower surface (opposite surface), 100, 110: shielding sheet metal (board shield portion), 109, 119: connector overlapping portion (conductive plate portion), 111: conductive extension portion, 178: slit (insertion hole)

Claims

1. An ultraviolet irradiation device that is attached to a mounting surface in a vehicle interior and irradiates ultraviolet rays toward the interior of the vehicle, A substrate disposed along the mounting surface; a connector portion to which a vehicle occupant detection signal is input via a signal line from a direction along a plate surface of the board, The ultraviolet irradiation device has a conductive plate portion, which is a plate-like conductive plate portion having electrical conductivity, superimposed on the opposite surface of the connector portion opposite the opposing surface that faces the mounting surface.

2. the connector portion is disposed on a board-side facing surface of the board that faces the mounting surface, The ultraviolet irradiation device of claim 1, wherein the conductive plate portion is arranged on the substrate-side opposite surface opposite the substrate-side facing surface, rises toward the substrate, is inserted into an insertion hole provided in the substrate, and has a conductive extension portion covering the periphery of the connector portion.

3. 3. The ultraviolet irradiation device according to claim 2, wherein the conductive extension is conductively connected to a discharge circuit provided on the substrate.

4. 4. The ultraviolet irradiation device according to claim 1, further comprising a conductive substrate shield portion covering a substrate-side opposite surface of the substrate opposite the substrate-side opposite surface that faces the mounting surface, the conductive plate portion being integrally connected to the substrate shield portion.

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