JP6957221B2 - Lighting device - Google Patents

Description

The present invention relates to a lighting device in which an outer lens is detachably attached to the peripheral edge of an opening of a housing by a hook structure.

Vehicle lighting fixtures such as rear combination lamps employ a configuration in which an outer lens is detachably attached to the periphery of the opening of the housing by a hook structure (see, for example, Patent Document 1).

Further, in a lighting device such as a fish collecting lamp for illuminating the sea surface and collecting fish in night fishing, a configuration is adopted in which an outer lens is detachably attached to the peripheral edge of the opening of the housing by a hook structure. Here, a conventional fish collecting lamp adopting such a configuration will be described with reference to FIGS. 12 to 14.

That is, FIG. 12 is a front view of the conventional fish collecting light, FIG. 13 is a sectional view taken along line EE of FIG. 12, FIG. 14 is an enlarged detailed view of the F portion of FIG. A light source (not shown) such as an LED is housed in a light chamber S (see FIG. 13) defined by an outer lens 103 attached to the peripheral edge of the rectangular opening by a hook structure.

Here, as shown in FIG. 14, a rib-shaped outer wall 102a and an inner wall 102b are erected on the outer peripheral portion of the housing 102 over the entire circumference, and are formed between the outer wall 102a and the inner wall 102b. A seal rib 103a erected along the outer circumference of the outer lens 103 is inserted into the fitted groove 107, and the housing 102 and the outer lens 103 are fitted by a sealant 110 such as hot melt filled in the fitting groove 107. High sealing performance is ensured in the part.

Then, as shown in FIG. 12, bulging portions 102c that bulge outward are formed at four locations on the outer peripheral portion of the housing 102, and as shown in FIG. 14, each bulging portion is formed. Hook claws 106 are integrally projected on the outer surface of the outer wall 102a of the 102c. Further, hook holes 108 are formed at locations on the outer peripheral portion of the outer lens 103 corresponding to the hook claws 106, and the hook structure is formed by these hook holes 108 and the hook claws 106 on the housing 102 side.

Thus, as shown in FIG. 14, the outer lens 103 is detachably attached to the peripheral edge of the opening of the housing 102 by engaging each hook claw 106 on the housing 102 side with each hook hole 108 on the outer lens 103 side. Be done.

Japanese Unexamined Patent Publication No. 2012-174381

However, in the conventional fish collecting lamp 101 shown in FIGS. 12 to 14, the hook structure formed by the hook claw 106 formed on the housing 102 side and the hook hole 108 formed on the outer lens 103 side is the fish collecting light 101. Since it is exposed to the outside of the outer shape, the hook structure may be damaged by an external impact. In order to prevent the occurrence of such a problem, it is necessary to cover the hook structure with another part such as a protective cover to protect it, which causes a problem that the number of parts increases and the cost increases.

Further, since the hook structure is exposed to the outside of the outer shape of the fish collecting light 101, there is also a problem that the appearance design of the fish collecting light 101 is deteriorated.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a lighting device capable of preventing damage to the hook structure and enhancing the appearance design without requiring a separate protective component. To do.

In order to achieve the above object, the invention according to claim 1 is a lighting device in which at least a light source is housed in a lighting room defined by an outer lens detachably attached to a housing and the peripheral edge of an opening thereof by a hook structure. In the above, a plurality of storage spaces are formed inside the outer periphery of the housing, the hook structure is stored in each storage space, and bulges bulging inward from the outer wall of the housing at a plurality of locations on the outer periphery of the housing. A protruding wall is formed, and rib-shaped protrusions erected at a plurality of positions on the back surface of the outer lens are inserted into the storage space formed by the protruding wall and the outer wall, respectively, and the rib-shaped protrusion and the housing are inserted. The hook structure is formed by a hook hole formed in one of the storage spaces and a hook claw formed in the other, and a drain hole is formed in a portion of the outer lens facing the storage space. ..

The invention according to claim 2 is characterized in that, in the invention according to claim 1 , a plurality of positioning protrusions are provided so as to project from the outer wall of the peripheral edge of the opening of the housing.

According to the invention of claim 1 , since the hook structure is stored in each of the plurality of storage spaces formed inside the outer periphery of the housing, the hook structure is not exposed to the outside of the outer shape of the lighting device, and the hook is hooked. The structure is protected by a housing. Therefore, damage to the hook structure can be prevented without requiring a separate protective component. Further, since the hook structure is not exposed to the outside of the outer shape of the lighting device, the appearance design of the lighting device is enhanced. Further, since the drainage hole is formed in the portion of the outer lens facing the storage space, the water that has entered the storage space is discharged from the drainage hole, and the water does not collect in the storage space.

According to the second aspect of the present invention, the outer lens is accurately positioned and attached to the housing by a plurality of positioning protrusions projecting from the outer wall of the peripheral edge of the opening of the housing.

It is a perspective view of the lighting apparatus which concerns on this invention. It is a front view of the lighting apparatus which concerns on this invention. It is a side view of the lighting apparatus which concerns on this invention. FIG. 2 is a cross-sectional view taken along the line AA of FIG. It is an enlarged detailed view of part B of FIG. FIG. 2 is an enlarged cross-sectional view taken along the line CC of FIG. It is a front view of the housing of the lighting apparatus which concerns on this invention. It is a side view of the housing of the lighting apparatus which concerns on this invention. It is a back view of the outer lens of the lighting apparatus which concerns on this invention. It is a side view of the outer lens of the lighting apparatus which concerns on this invention. It is an enlarged detailed view of part D of FIG. It is a front view of a conventional fish collecting lamp. FIG. 12 is a cross-sectional view taken along the line EE of FIG. It is an enlarged detailed view of part F of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a perspective view of the lighting device according to the present invention, FIG. 2 is a front view of the lighting device, FIG. 3 is a side view of the lighting device, and FIG. 4 is a sectional view taken along line AA of FIG. 5 is an enlarged detailed view of part B in FIG. 4, FIG. 6 is an enlarged sectional view taken along line CC of FIG. 2, FIG. 7 is a front view of the housing, FIG. 8 is a side view of the housing, and FIG. 9 is a back view of the outer lens. FIG. 10 is a side view of the outer lens, and FIG. 11 is an enlarged detailed view of the D portion of FIG.

The lighting device 1 according to the present embodiment functions as a fish collecting light used for fishing at night, and as shown in FIG. 1, a rectangular block-shaped housing 2 and a rectangular opening of the housing 2. The outer lens 3 detachably attached to the peripheral edge of the portion by a hook structure, the four light source units 4 housed in the lighting chamber S (see FIG. 4) defined by the housing 2 and the outer lens 3, and the periphery of each light source unit 4. It is configured to include a rectangular flat plate-shaped extension 5 to cover.

The housing 2 is a part made of die-cast aluminum having high thermal conductivity, and constitutes a heat sink as a whole, and a plurality of thin rectangular flat plate-shaped heat radiating fins 2B are vertically arranged on the back surface of the rectangular flat plate-shaped base plate 2A. It is constructed upright. Then, as shown in FIGS. 1, 5, 7, and 8, a rib-shaped outer wall 2a is erected vertically on the outer peripheral edge of the base plate 2A toward the front side (front side of FIG. 7). A rib-shaped inner wall 2b is vertically erected on the inside of the outer wall 2a toward the front side.

Here, as shown in FIG. 7, there are 10 locations on the outer wall 2a, specifically, 3 locations on the long side facing each other on the outer wall 2a and 2 locations facing each other on the short side, for a total of 10 locations. A bulging wall 2c that bulges inward is formed, and a front viewing table-shaped storage space S1 is formed between each bulging wall 2c and the outer wall 2a. Then, as shown in FIGS. 5, 6 and 7, hook claws 6 are integrally projected from the central portion of the inner surface of each bulging wall 2c of the housing 2 facing the storage space S1. As shown in FIG. 5, each storage space S1 is formed as a through hole penetrating the housing 2, and one end on the back surface side (right end in FIG. 5) is open on the back surface of the base plate 2A. ..

Thus, in the base plate 2A of the housing 2, a rectangular opening surrounded by the inner wall 2b is opened toward the front side, and a part of the inner wall 2b erected along the peripheral edge of the opening. In (10 places where the storage space S1 is formed), a bulging portion 2b1 that bulges inward following the shape of the bulging wall 2c is formed. Then, as shown in FIGS. 5 and 7, a fitting groove 7 is formed between the outer wall 2a and the bulging wall 2c and the inner wall 2b erected along the peripheral edge of the opening of the housing 2. Further, as shown in FIGS. 7 and 8, rectangular rib-shaped positioning projections 2d having a low height are integrally erected at a plurality of locations on the outer wall 2a of the housing 2.

The outer lens 3 is integrally molded with a transparent resin such as acrylic or polycarbonate, and the flat rectangular frame-shaped flange portion 3A formed along the outer peripheral edge thereof is fitted with the fitting formed on the peripheral edge of the housing 2. A seal rib 3a having a shape along the joint groove 7 is erected vertically toward the back surface side (front side in FIG. 9). Then, as shown in FIG. 9, the plurality of locations (10 locations corresponding to the bulging wall 2c of the housing 2) of the seal rib 3a bulge inward following the shape of the bulging wall 2c of the housing 2. Each of the bulging portions 3a1 is formed, and as shown in FIGS. 10 and 11, rectangular flat plate-shaped rib-shaped protrusions 3b are respectively formed on the back surface side of the outer portion of each bulging portion 3a1 of the flange portion 3A. It is erected at a right angle toward (the front side of FIG. 9).

Thus, as shown in FIGS. 10 and 11, rectangular hook holes 8 are formed in the plurality of rib-shaped protrusions 3b integrally erected on the flange portion 3A of the outer lens 3 toward the back surface side, respectively. The hook hole 8 and the hook claw 6 (see FIGS. 5 to 7) formed on the housing 2 side form a hook structure for detachably attaching the outer lens 3 to the peripheral edge of the opening of the housing 2. doing. Here, as shown in FIGS. 5 and 6, in the outer lens 3, at a plurality of locations where the rib-shaped protrusions 3b of the flange portion 3A are formed, as shown in FIGS. 2, 5 and 6, rectangular shapes are formed. Drain holes 9 are formed respectively. As shown in FIG. 10, the central portion 3B surrounded by the flange portion 3A of the outer lens 3 has an arcuate curved surface shape that bulges toward the front side (upper side of FIG. 10).

Therefore, in order to attach the outer lens 3 to the peripheral edge of the opening of the housing 2 by a hook structure, as shown in FIG. 5, a sealing agent 10 such as hot melt is formed in the fitting groove 7 formed along the peripheral edge of the housing 2. The outer lens 3 is covered with the outer lens 3 so as to cover the opening of the housing 2 from the front side. Then, the seal ribs 3a erected along the peripheral edge of the outer lens 3 are inserted into the fitting groove 7 of the housing 2 as shown in FIG. 5, and the plurality of rib-shaped protrusions 3b projecting from the outer lens 3 are inserted into the housing. It is inserted into each storage space S1 of 2.

When the outer lens 3 is pushed into the housing 2 side from the above state, as shown in FIGS. 5 and 6, the hook claws 6 on the housing 2 side engage with each of the plurality of hook holes 8 on the outer lens 3 side. As shown in FIG. 4, the outer lens 3 is easily attached to the peripheral edge of the opening of the housing 2 with one touch by a hook structure, and the lighting chamber (see FIG. 4) is defined between the two. A high sealing property is ensured in the mounting portion between the outer lens 3 and the housing 2 by a sealing agent 10 (see FIG. 5) such as hot melt filled in the fitting groove 7 of the housing 2. Further, since a plurality of positioning protrusions 2d (see FIG. 8) are projected from the outer wall 2a on the periphery of the opening of the housing 2, the outer lens 3 is accurately positioned and attached to the housing 2 by these positioning protrusions 2d.

Each of the plurality of light source units 4 is configured by mounting a plurality of (4 × 11 = 44) LEDs (light emitting diodes) 12 in a matrix on a rectangular flat plate-shaped substrate 11. In this embodiment, a white LED is used for each LED 12, and the light emitting direction thereof is the front direction.

Further, as shown in FIG. 1, the extension 5 that covers the periphery of the four light source units 4 has an outer shape that follows the shape of the inner wall 2b of the housing 2, to which each light source unit 4 is exposed. Four rectangular holes 5a for the purpose are formed.

Thus, in the present embodiment, the lighting device 1 that functions as a fish collecting light is a lighting room S defined by an outer lens 3 attached to the housing 2 and the peripheral edge of the opening by a hook structure (see FIG. 4). ) Contains four light source units 4 and an extension 5, as shown in FIGS. 2 to 4, but in actual use, the lighting device 1 is oblique so that the outer lens 3 faces the sea surface. It is installed in a slanted state. In this state, when a current is supplied to the plurality of LEDs 12 of each light source unit 4 from a power source (not shown), each LED 12 is activated and emits light, and the light (white light in the present embodiment) is transmitted through the outer lens 3. It is radiated toward the sea surface at night, and fish gather in this light, which makes it possible to operate at night. Heat is generated in each light source unit 8 by emitting light from each LED 12 of the light source unit 4, and this heat is conducted from the base plate 2A of the housing 2 having the function of a heat sink to a plurality of heat radiation fins 2B. Since heat is radiated from each heat radiating fin 2B to the outside air, the temperature rise of each LED 12 is suppressed to a low level, and the decrease in luminous efficiency and durable life of each LED 12 is prevented.

In the above, in the lighting device 1 according to the present embodiment, a hook structure is formed by a plurality of hook claws 6 formed on the housing 2 side and a plurality of hook holes 8 formed on the outer lens 3 side, and the hooks are formed. Since the structure is stored in each of the plurality of storage spaces S1 formed inside the outer periphery of the housing 2, the hook structure is not exposed to the outside of the outer shape of the lighting device 1, and the hook structure is formed by the outer wall 2a of the housing 2. Be protected. Therefore, even if the lighting device 1 receives an impact from the outside, the hook structure is not damaged by the impact. As a result, it is not necessary to provide a separate component such as a protective cover for protecting the hook structure, and the number of components can be reduced to reduce the cost of the lighting device 1. Further, since the hook structure is not exposed to the outside of the outer shape of the lighting device 1, the effect of enhancing the appearance design of the lighting device 1 can be obtained.

Further, since the lighting device 1 used as a fish collecting lamp is used with the outer lens 3 facing down, even if water enters the storage space S1 opened in the base plate 2A of the housing 2, the water still remains in the outer lens 3. The water is discharged from the drain hole 9 formed in the flange portion 3A of the housing, and water does not collect in the storage space S1.

In the above embodiment, in the configuration of the hook structure, the hook claw 6 is formed on the housing 2 side and the hook hole 8 is formed on the outer lens 3 side, but on the contrary, the hook hole is formed on the housing 2 side. It may be formed and a hook claw may be formed on the outer lens 3 side. Further, in the above embodiment, the hook claw 6 is projected on the bulging wall 2c side of the housing 2, but the hook claw 6 may be projected on the inner surface of the outer wall 2a facing each storage space S1.

By the way, although the embodiment in which the present invention is applied to the illuminating lamp device 1 used as a fish collecting lamp has been described above, the present invention also applies to any illuminating lamp device used for purposes other than the fish collecting lamp. Of course, it is also applicable.

1 Lighting device 2 Housing 2A Housing base plate 2B Housing heat dissipation fin 2a Housing outer wall 2b Housing inner wall 2c Housing bulging wall 2d Housing positioning protrusion 3 Outer lens 3A Outer lens flange 3B Outer lens center 3a Outer lens seal rib 3b Ribbed protrusion of outer lens 4 Light source unit 5 Extension 5a Rectangular hole of extension 6 Hook hole 7 Housing fitting hole 8 Hook hole 9 Outer lens drain hole 10 Sealant 11 Board 12 LED (light source)
S light room S1 storage space

Claims (2)

In a lighting device consisting of at least a light source housed in a lamp chamber defined by an outer lens detachably attached to the housing and the periphery of its opening by a hook structure.
A plurality of storage spaces are formed inside the outer periphery of the housing, and the hook structure is stored in each storage space .
A plurality of bulging walls that bulge inward from the outer wall of the housing are formed at a plurality of locations on the outer peripheral portion of the housing, and a plurality of back surfaces of the outer lens are formed in the storage space formed by each bulging wall and the outer wall. The rib-shaped protrusions erected at the locations are inserted, and the hook structure is formed by the hook holes formed in one of the rib-shaped protrusions and the storage space of the housing and the hook claws formed in the other.
An illuminating device characterized in that a drain hole is formed in a portion of the outer lens facing the storage space. The illuminating device according to claim 1 , wherein a plurality of positioning protrusions are provided so as to project from the outer wall of the peripheral edge of the opening of the housing.

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