JP7167889B2 - UV light irradiation device - Google Patents

Description

The present invention relates to an ultraviolet light irradiation device.

2. Description of the Related Art Conventionally, there has been known a light-emitting device in which a light source is hermetically sealed as an ultraviolet light irradiation device capable of performing sterilization and air purification by irradiation with ultraviolet light (see, for example, Patent Document 1).

In the light-emitting device described in Patent Document 1, a light-emitting diode in which an LED chip that emits ultraviolet light is mounted on a stem is covered with a light source cover that transmits ultraviolet light. Hermetic sealing of the light emitting diode is formed by heat-sealing the opening of the light source cover after the inside of the light source cover is evacuated or decompressed.

In the light-emitting device described in Patent Document 1, since the light-emitting diode is airtightly sealed, it is possible to prevent moisture from adhering to the light-emitting diode and perform sterilization and air purification in a place containing a lot of moisture or in water. .

JP-A-2005-203437

However, in the light-emitting device of Patent Document 1, even a slight peeling of the heat-sealed portion in the opening of the light source cover may break airtightness, and as a result, moisture may adhere to the light-emitting diodes in the light source cover. be.

SUMMARY OF THE INVENTION An object of the present invention is to provide an ultraviolet irradiation device in which a light source is hermetically sealed, and which has excellent waterproofness and is resistant to breaking of airtightness.

One aspect of the present invention provides the following ultraviolet light irradiation device [1] to [5] in order to achieve the above object.

[1] The wiring board and the light emitting element, which have a wiring board, a light emitting element mounted on the wiring board that emits ultraviolet light, and a light extraction portion that transmits the ultraviolet light and extracts the ultraviolet light. A container for housing, an annular component surrounding the light emitting element and sandwiched between the wiring board and the container, and a region inside the annular component filling the outer side of the annular component in the container are airtightly sealed. and a sealing resin for irradiating ultraviolet light.
[2] A power harness connected to the wiring board for supplying power to the light emitting element, the container having a harness outlet for taking out the power harness outside the annular part, The ultraviolet light irradiation device according to the above [1], wherein the harness outlet also serves as an injection port for the sealing resin.
[3] The ultraviolet light irradiation device according to the above [1] or [2], wherein the entire container is made of a film that transmits the ultraviolet light.
[4] The ultraviolet light irradiation device according to [1] or [2] above, wherein the container is a housing having a transparent window as the light extraction part.
[5] The above-mentioned [4], wherein the container has plate-shaped flanges on both sides thereof for attaching the ultraviolet light irradiation device to the attachment object, which are fitted into linear grooves provided in the attachment object. ] The ultraviolet light irradiation device according to .

ADVANTAGE OF THE INVENTION According to this invention, it is an ultraviolet-light irradiation apparatus with which the light source is airtightly sealed, Comprising: The ultraviolet-light irradiation apparatus which is hard to break airtightness and has excellent waterproofness can be provided.

1(a) and 1(b) are a perspective view and a vertical sectional view of an ultraviolet light irradiation device according to a first embodiment. 2A and 2B are a perspective view and a vertical sectional view of a modification of the ultraviolet light irradiation device according to the first embodiment. 3A and 3B are a perspective view and a vertical sectional view of an ultraviolet light irradiation device according to a second embodiment. FIG. 4 is a bottom view of the ultraviolet light irradiation device according to the second embodiment before the container is filled with the sealing resin. FIG. 5 is a vertical cross-sectional view of the ultraviolet light irradiation device according to the second embodiment attached to an object to be attached. 6A and 6B are a perspective view and a vertical cross-sectional view of a modification of the ultraviolet light irradiation device according to the second embodiment. FIG. 7 is a vertical cross-sectional view of a modification of the ultraviolet light irradiation device according to the second embodiment attached to an object to be attached.

[First Embodiment]
(Configuration of ultraviolet light irradiation device)
1(a) and 1(b) are a perspective view and a vertical sectional view of an ultraviolet light irradiation device 1 according to a first embodiment. FIG. 1(b) shows a cross section in the direction in which the power harness 16 extends, and includes cross sections of the light emitting element 11 and the power harness 16. However, the positional relationship between the light emitting element 11 and the power harness 16 is such that both are on the same cross section. It is not limited to what appears.

The ultraviolet light irradiation device 1 is a sterilization device that uses a light emitting element 11 that emits ultraviolet light as a light source and sterilizes an object to be irradiated by irradiating ultraviolet light. Since the ultraviolet light irradiation device 1 has a waterproof structure in which the light emitting element 11 is airtightly sealed, it can be used in a liquid such as water, and is used for sterilization of liquid, for example.

The ultraviolet light irradiation device 1 includes a wiring board 10, a light emitting element 11 that emits ultraviolet light and is mounted on the wiring board 10, a container 13 that houses the wiring board 10 and the light emitting element 11, and a wiring that surrounds the light emitting element 11. An annular component 12 sandwiched between a substrate 10 and a container 13, and a sealing resin 14 filled in the outer side of the annular component 12 in the container 13 for hermetically sealing an inner region of the annular component 12. .

The wiring substrate 10 is a substrate having wiring (not shown), and electrodes of the light emitting elements 11 are connected to the wiring. The material of the wiring board 10 is not particularly limited, and for example, a glass epoxy board is used as the wiring board 10 . The planar shape of the wiring board 10 is not particularly limited, and is, for example, a square having a side length L3 of ₁₀ to 20 mm.

The wiring board 10 is provided with a connector 15 for connecting a power supply harness 16, which will be described later, on the outside of the annular component 12, typically on the back surface (the surface opposite to the mounting surface of the light emitting element 11). The connector 15 is electrically connected to the light emitting element 11 via wiring of the wiring board 10 .

The light emitting element 11 is, for example, a light emitting diode (LED) or a laser diode (LD), and typically an LED is used. A light-emitting diode is a small-sized light-emitting element, consumes little power, generates little heat, and has a long life. The ultraviolet light irradiation device 1 may have one light emitting element 11 on the wiring board 10 or may have a plurality of light emitting elements 11 .

The wavelength of the ultraviolet light emitted by the light emitting element 11 is not particularly limited. UV light in a wavelength range (less than 280 nm) called -C, and UV-C, which has the highest bactericidal effect, is preferred.

The ring-shaped component 12 is a continuous ring-shaped component, and prevents the uncured sealing resin 14 injected into the container 13 from entering the mounting area of the light emitting element 11 . The sealing resin 14 that has entered the mounting region of the light emitting element 11 may inhibit the irradiation of ultraviolet light from the light emitting element 11 (for example, silicone resin, which is a typical material of the sealing resin 14, has a transmittance of ultraviolet light is not high), the less the sealing resin 14 that exists inside the annular component 12, the better. The annular component 12 is, for example, an O-ring or packing.

The container 13 is entirely composed of ultraviolet light transmitting films 130 a and 130 b that transmit ultraviolet light emitted from the light emitting element 11 . A portion of the container 13 (of the ultraviolet light transmitting film 130 a ) located above the light emitting element 11 functions as a light extracting portion for extracting the ultraviolet light emitted from the light emitting element 11 .

Materials for the ultraviolet light transmitting films 130 a and 130 b are selected according to the emission wavelength of the light emitting element 11 . For example, when the light emitting element 11 emits light in the UV-A or UV-B wavelength range, fluorine resin or silicone resin is used as the material of the ultraviolet light transmitting films 130a and 130b, and the light emitting element 11 emits UV-C light. In the case of emitting light in the wavelength range, fluorine resin is used as the material of the ultraviolet light transmitting films 130a and 130b.

The ultraviolet light transmitting film 130a covers the front surface of the wiring board 10 (mounting surface of the light emitting element 11), and the ultraviolet light transmitting film 130b covers the back surface of the wiring board 10 (surface opposite to the mounting surface of the light emitting element 11). The container 13 has a bag shape with a harness outlet 132 as an outlet for the power harness 16, which will be described later, as an opening, and includes the harness outlet 132 at the outer periphery of the ultraviolet light transmitting film 130a and the ultraviolet light transmitting film 130b. parts are welded. The welded portion of the ultraviolet light transmitting film 130a and the ultraviolet light transmitting film 130b is the welded portion 131 shown in FIGS.

The sealing resin 14 is made of a material such as silicone resin that is impermeable to water and moisture. Since the sealing resin 14 is filled outside the annular component 12 inside the container 13 as described above, the inlet for the sealing resin 14 in the container 13 is provided outside the annular component 12 . A specific example of the position of the injection port for the sealing resin 14 will be described later.

The ultraviolet light irradiation device 1 also includes a power harness 16 for supplying power to the light emitting elements 11 connected to the wiring board 10 . The power harness 16 has a harness connector 17 at its end, and the harness connector 17 is connected to the connector 15 of the wiring board 10 .

As described above, in the embodiment shown in FIGS. 1A and 1B, the harness outlet 132 is provided at the outer peripheral portions of the ultraviolet light transmitting film 130a and the ultraviolet light transmitting film 130b, and the power supply harness 16 It is taken out from between the ultraviolet light transmitting film 130a and the ultraviolet light transmitting film 130b. That is, the power harness 16 is taken out from the harness outlet 132 provided on the side of the container 13 .

Since the harness outlet 132 is provided in the region outside the ring-shaped component 12 of the container 13 , it can also serve as an injection port for the sealing resin 14 that fills the outside of the ring-shaped component 12 of the container 13 .

The UV irradiation device 1 can be designed as a compact sterilization device, the maximum width of the container 13 being, for example, 3-10 mm. As shown in FIG. 1A, when the planar shape of the container 13 is a square, the side length L ₂ is longer than the length L ₁ of the side that does not include the harness outlet 132 . Here, the length L ₁ is, for example, 20-30 mm, and the length L ₂ is, for example, 25-35 mm.

(Waterproof structure of ultraviolet light irradiation device)
The ultraviolet light irradiation device 1 has a waterproof structure in which the light emitting element 11 is hermetically sealed. The configuration of the waterproof structure will be described below.

The wiring board 10, the container 13 (ultraviolet light transmitting films 130a and 130b), and the sealing resin 14, which constitute the ultraviolet light irradiation device 1, are all made of water-impermeable materials.

Since the container 13 is impermeable to water, it is the harness outlet 132 and the injection port of the sealing resin 14 if the inlet is provided separately from the harness outlet 132, which can be an inlet for water or moisture. The harness outlet 132 and the injection port for the sealing resin 14 are closed with the sealing resin 14 filled in the container 13 .

In addition, since the sealing resin 14 filled in the container 13 is in close contact with the wiring board 10 and the container 13 (ultraviolet light transmitting films 130a and 130b), a gap between the sealing resin 14 and the wiring board 10 and a sealing Intrusion of water and moisture through the gap between the sealing resin 14 and the container 13 can also be prevented.

The waterproof structure having these characteristics can prevent water and moisture from entering the mounting area of the light emitting element 11 inside the annular part 12 in the container 13 .

Moreover, in the ultraviolet light irradiation device 1, the harness connector 17 and the connector 15 of the wiring board 10 are also covered with the sealing resin 14 to protect the terminals from deterioration due to adhesion of water or moisture.

(Manufacturing method of ultraviolet light irradiation device)
An example of a method for manufacturing the ultraviolet light irradiation device 1 will be described below. First, the wiring board 10 on which the light emitting element 11 is mounted and the power supply harness 16 is connected is prepared.

Next, the wiring substrate 10 on which the annular component 12 is mounted is sandwiched between the ultraviolet light transmitting films 130a and 130b, and the outer peripheral portions of the ultraviolet light transmitting films 130a and 130b are overlapped and heat-sealed. to form the welded portion 131 . At this time, a portion from which the power harness 16 is taken out between the ultraviolet light transmitting film 130a and the ultraviolet light transmitting film 130b is defined as a harness outlet 132, and the welding portion 131 is not formed in this portion.

Next, the sealing resin 14 liquefied by heating is injected into the container 13 from the harness outlet 132 . The injected sealing resin 14 fills the outside of the annular component 12 within the container 13 . When the filled sealing resin 14 is cured, the ultraviolet light irradiation device 1 is obtained.

When injecting the sealing resin 14, in order to prevent the sealing resin 14 from entering the inside of the annular component 12, the annular component 12 is compressed in the thickness direction from above the ultraviolet light transmitting film 130a. It is preferable to apply force to the component 12 to suppress formation of a gap between the annular component 12 and the ultraviolet light transmissive film 130a.

(Modification)
2A and 2B are a perspective view and a vertical sectional view of an ultraviolet light irradiation device 1a, which is a modification of the ultraviolet light irradiation device 1 according to the first embodiment. The configuration of the ultraviolet light irradiation device 1 a differs from the configuration of the ultraviolet light irradiation device 1 in the position of the harness outlet provided in the container 13 .

In the ultraviolet light irradiation device 1a, a harness outlet 133 is provided near the center of the ultraviolet light transmitting film 130b on the back side of the container 13, and the power harness 16 is taken out from the harness outlet 133. As shown in FIG. Also, a welded portion 131 is formed around the entire outer periphery of the container 13 (ultraviolet light transmitting films 130a and 130b).

Since the harness outlet 133 is provided in the region outside the ring-shaped component 12 of the container 13 , it can also serve as an injection port for the sealing resin 14 that fills the outside of the ring-shaped component 12 of the container 13 .

The ultraviolet light irradiation device 1a has a waterproof structure similar to that of the ultraviolet light irradiation device 1, and can be manufactured by a similar method.

[Second embodiment]
The ultraviolet light irradiation device according to the second embodiment of the present invention differs from the ultraviolet light irradiation device according to the first embodiment in that the container is a casing having a light extraction portion as a transparent window. Note that descriptions of points common to the first embodiment may be omitted or simplified.

(Configuration of ultraviolet light irradiation device)
3(a) and 3(b) are a perspective view and a vertical sectional view of an ultraviolet light irradiation device 2 according to a second embodiment. FIG. 3B shows a cross section perpendicular to the direction in which the power harness 16 extends, and includes cross sections of the light emitting element 11 and the power harness 16, but the positional relationship between the light emitting element 11 and the power harness 16 is the same for both. It is not limited to what appears in the cross section.

Similar to the ultraviolet light irradiation device 1 according to the first embodiment, the ultraviolet light irradiation device 2 uses a light emitting element 11 that emits ultraviolet light as a light source, and is a sterilization device that sterilizes an irradiation target by irradiating ultraviolet light. It is a device. In addition, since the ultraviolet light irradiation device 2 has a waterproof structure in which the light emitting element 11 is airtightly sealed, it can be used in a liquid such as water, and is used, for example, for sterilization of liquid.

The ultraviolet light irradiation device 2 includes a wiring board 10, a light emitting element 11 that emits ultraviolet light and is mounted on the wiring board 10, a container 20 that houses the wiring board 10 and the light emitting element 11, and a wiring that surrounds the light emitting element 11. An annular component 12 sandwiched between a substrate 10 and a container 13, and a sealing resin 14 filled in the outer side of the annular component 12 in the container 20 for hermetically sealing an inner region of the annular component 12. .

The container 20 is a housing having a housing body 201 made of resin or metal and a transparent window 202 through which ultraviolet light emitted from the light emitting element 11 is transmitted. In the container 20 , the transparent window 202 functions as a light extracting portion for extracting the ultraviolet light emitted from the light emitting element 11 .

The main body 201 has a housing portion 201a provided with a light outlet 204, and a plate-like portion 201b provided with an opening 205 that serves both as an outlet for the power supply harness 16 and an injection port for the sealing resin . The light extraction port 204 is an opening for extracting ultraviolet light emitted from the light emitting element 11 and is positioned above the light emitting element 11 .

The wiring substrate 10, the light emitting element 11, the annular component 12, and the sealing resin 14 are accommodated in the space inside the main body 201 formed by combining the housing portion 201a and the plate portion 201b.

The transparent window 202 is a plate-like member or film that transmits ultraviolet light emitted from the light emitting element 11 . A material for the transparent window 202 is selected according to the emission wavelength of the light emitting element 11 . For example, when the light emitting element 11 emits light in the UV-A or UV-B wavelength range, fluorine resin or silicone resin is used as the material of the transparent window 202, and the light emitting element 11 emits light in the UV-C wavelength range. Fluororesin is used as the material of the transparent window 202 when emitting .

The transparent window 202 covers the upper side of the light emitting element 11 and closes the light extraction port 204 of the housing portion 201a from the lower side (light emitting element 11 side). The transparent window 202 is sandwiched and fixed between the housing portion 201 a and the annular member 12 . Ultraviolet light emitted from the light emitting element 11 passes through the transparent window 202 and is extracted from the light extraction port 204 of the housing portion 201a.

The annular component 12, which is an O-ring or a packing, is accommodated in the container 20 while being compressed in the thickness direction. As a result, the casing-like portion 201a and the transparent window 202 are tightly attached directly above the annular component 12, and water and moisture can be prevented from entering the container 20 through the gap between the casing-like portion 201a and the transparent window 202. .

As described above, in the ultraviolet light irradiation device 2 , the power harness 16 is taken out from the opening 205 provided in the plate-like portion 201 b of the container 20 . Since the opening 205 is provided in a region outside the ring-shaped component 12 of the container 20 , it can be used as an injection port for the sealing resin 14 that fills the outside of the ring-shaped component 12 of the container 20 .

FIG. 4 is a bottom view of the ultraviolet light irradiation device 2 before the container 20 is filled with the sealing resin 14 . As shown in FIG. 4 , the wiring board 10 has a recess 100 on its edge, and a part of the recess 100 is exposed inside the opening 205 . Therefore, the sealing resin 14 can be injected into the container 20 from the recess 100 exposed in the opening 205 .

As shown in FIGS. 3A and 3B, the plate-like portion 201b preferably has plate-like flanges 206 on both sides for attaching the ultraviolet light irradiation device 2 to an object to be attached.

FIG. 5 is a vertical cross-sectional view of the ultraviolet light irradiation device 2 attached to the attachment object 5 . The mounting object 5 includes two fixing portions 50 having linear grooves 51 facing each other for fitting the plate-like collar portion 206 of the ultraviolet light irradiation device 2 . The ultraviolet light irradiation device 2 can be attached to the mounting object 5 by sliding the ultraviolet light irradiation device 2 on the mounting object 5 and fitting the flange portion 206 into the linear groove 51 of the fixing portion 50 .

In the example shown in FIG. 5 , the ultraviolet light irradiation device 2 is attached so that the light extraction direction faces the opposite side of the attachment target 5 .

The UV irradiation device 2 can be designed as a compact sterilization device, the maximum width of the container 20 being, for example, 3-10 mm. For example, as shown in FIG. 3A, when the planar shape of the container 20 is square, the length L4 in the direction in which the plate _- like portion 201b does not protrude is 20 to 30 mm, and the plate-like portion 201b is The length L5 in the projecting direction is _25-35 mm. The length L6 of the housing portion 201a in the direction in which the plate portion 201b protrudes is, for example, ₁₀ to 20 mm.

(Waterproof structure of ultraviolet light irradiation device)
Like the ultraviolet light irradiation device 1 according to the first embodiment, the ultraviolet light irradiation device 2 has a waterproof structure in which the light emitting element 11 is hermetically sealed. The configuration of the waterproof structure will be described below.

The wiring board 10, the container 20 (the main body 201 and the transparent window 202), and the sealing resin 14, which constitute the ultraviolet light irradiation device 2, are all made of water-impermeable materials.

Since the container 20 is impermeable to water, it is the opening 205 and the light extraction port 204 that can be entrances for water and humidity. , and the light extraction port 204 is closed by a transparent window 202 .

Further, since the sealing resin 14 filled in the container 13 is in close contact with the wiring board 10 and the container 20 (body 201, transparent window 202), the gap between the sealing resin 14 and the wiring board 10 and the sealing Intrusion of water and moisture through the gap between the resin 14 and the container 20 can also be prevented. In addition, due to the function of the annular part 12 as a sealing part, the casing part 201a and the transparent window 202 are strongly attached directly above the annular part 12, and water and moisture can enter the container through the gap between the casing part 201a and the transparent window 202. Intrusion into 20 can also be prevented.

The waterproof structure having these characteristics can prevent water and moisture from entering the mounting area of the light emitting element 11 inside the annular component 12 in the container 20 . According to this waterproof structure, even if part of the welded portion 131 of the container 13 is peeled off, the sealing resin 4 filled in the container 13 can sufficiently maintain the waterproof performance.

In the ultraviolet light irradiation device 2, the harness connector 17 and the connector 15 of the wiring board 10 are also covered with the sealing resin 14 to protect the terminals from deterioration due to the adhesion of water and moisture.

(Manufacturing method of ultraviolet light irradiation device)
An example of a method for manufacturing the ultraviolet light irradiation device 2 will be described below. First, the wiring board 10 on which the light emitting element 11 is mounted and the power supply harness 16 is connected is prepared.

Next, the wiring board 10 is inserted into the housing portion 201a together with the annular component 12 and the transparent window 202, and the housing portion 201a and the plate portion 201b are joined. As a result, the wiring substrate 10 and the annular component 12 are housed in the container 20 composed of the housing portion 201 a , the plate portion 201 b and the transparent window 202 . The method of joining the housing-like portion 201a and the plate-like portion 201b is not particularly limited, but for example, bonding with an adhesive is used.

Next, the sealing resin 14 liquefied by heating is injected into the container 20 through the opening 205 of the container 20 . The injected sealing resin 14 fills the outside of the annular component 12 within the container 20 . When the filled sealing resin 14 is cured, the ultraviolet light irradiation device 2 is obtained.

When the sealing resin 14 is injected, the annular component 12 receives a compressive force in the thickness direction, and the annular component 12 and the wiring board 10, and the annular component 12 and the transparent window 202 are in close contact with each other. It is possible to effectively prevent the stopping resin 14 from entering the inside of the annular component 12 .

(Modification)
6A and 6B are a perspective view and a vertical cross-sectional view of an ultraviolet light irradiation device 3, which is a modification of the ultraviolet light irradiation device 2 according to the second embodiment. The configuration of the ultraviolet light irradiation device 3 differs from the configuration of the ultraviolet light irradiation device 2 in the position of the plate-like collar portion in the container for attaching the ultraviolet light irradiation device to the attachment object.

The container 30 for housing the wiring board 10, the light emitting element 11, and the annular part 12 in the ultraviolet light irradiation device 3 includes a housing body 301 made of resin or metal, and a transparent window through which the ultraviolet light emitted from the light emitting element 11 is transmitted. 202. In the container 30 , the transparent window 202 functions as a light extracting portion for extracting the ultraviolet light emitted from the light emitting element 11 .

The main body 301 has a plate-like portion 301a provided with a light outlet 304, and a housing-like portion 301b provided with an opening 305 serving both as an outlet for the power harness 16 and an injection port for the sealing resin . The light extraction port 304 is an opening for extracting ultraviolet light emitted from the light emitting element 11 and is positioned above the light emitting element 11 .

The wiring substrate 10, the light emitting element 11, the annular component 12, and the sealing resin 14 are accommodated in the space inside the main body 301 formed by combining the plate-like portion 301a and the housing-like portion 301b.

As shown in FIGS. 6A and 6B, the plate-like portion 301a has plate-like flanges 306 on both sides for attaching the ultraviolet light irradiation device 2 to an object to be attached. That is, the collar part 306 is provided on the upper side (light extraction side) of the ultraviolet light irradiation device 3 .

FIG. 7 is a vertical sectional view of the ultraviolet light irradiation device 3 attached to the attachment object 6. FIG. The mounting object 6 includes two fixing portions 60 having linear grooves 61 facing each other for fitting the plate-like collar portion 306 of the ultraviolet light irradiation device 3 . The ultraviolet light irradiation device 3 can be attached to the mounting object 6 by sliding the ultraviolet light irradiation device 3 on the mounting object 6 and fitting the flange portion 306 into the linear groove 61 of the fixing portion 60 .

In the example shown in FIG. 7 , the ultraviolet light irradiation device 3 is attached so that the light extraction direction faces the mounting object 6 side, and the ultraviolet light is irradiated through the hole 63 provided in the mounting object 6 .

As shown in the example of the ultraviolet light irradiation device 2 and the ultraviolet light irradiation device 3, the position of the plate-shaped collar portion for attaching the ultraviolet light irradiation device to the mounting object in the container is changed according to the form of the mounting object. It can be set as appropriate.

The ultraviolet light irradiation device 3 has a waterproof structure similar to that of the ultraviolet light irradiation device 2, and can be manufactured by a similar method.

(Effect of Embodiment)
The ultraviolet light irradiation devices according to the first and second embodiments have a waterproof structure characterized in that the inside of the container is filled with a sealing resin, so that the airtightness is difficult to break and has excellent waterproofness. Highly reliable when used underwater or in humid environments.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the invention. Also, the constituent elements of the above-described embodiments can be arbitrarily combined without departing from the gist of the invention.

Moreover, the above embodiments do not limit the invention according to the scope of claims. Also, it should be noted that not all combinations of features described in the embodiments are essential to the means for solving the problems of the invention.

Reference Signs List 1, 1a, 2, 3 ultraviolet light irradiation device 10 wiring board 11 light emitting element 12 annular component 13 container 130a, 130b ultraviolet light transmission film 131 welding portion 132, 133 harness outlet 14 sealing resin 16 power supply harness 20, 30 container 201 , 301 main body 202 transparent window 205, 305 opening 206, 306 flange

Claims (4)

a wiring board;
a light-emitting element that emits ultraviolet light and is mounted on the wiring board;
a container housing the wiring board and the light emitting element, which has a light extraction portion for extracting the ultraviolet light that transmits the ultraviolet light;
an annular part surrounding the light emitting element and sandwiched between the wiring board and the container;
a sealing resin for air-tightly sealing a region inside the annular component, which is filled outside the annular component in the container;
a power harness for supplying power to the light emitting element connected to the wiring board;
with
The container has a harness outlet for taking out the power supply harness outside the annular part,
wherein the harness outlet also serves as an injection port for the sealing resin;
Ultraviolet light irradiation device. The entire container is composed of a film that transmits the ultraviolet light,
The ultraviolet light irradiation device according to claim 1 . The container is a housing having a transparent window as the light extraction part,
The ultraviolet light irradiation device according to claim 1 . The container is provided with plate-shaped flanges on both sides that fit into linear grooves provided in the object for attaching the ultraviolet light irradiation device to the object,
The ultraviolet light irradiation device according to claim 3 .

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