JP2019046558A - Socket structure and light source body - Google Patents

Abstract

To provide a socket structure excellent in waterproofness and capable of easily changing the interval or number of light source bodies, even in a case being used in a long light-emitting device.SOLUTION: A socket structure comprises a socket part and a bracket part detachably attached to the socket part. The bracket part has a projection part with a first open hole formed in a projection direction. The socket part has a recess part fitted to the projection part, and a second open hole formed at the recess part. Between the projection part and the recess part, an O ring is provided. The socket structure allows insertion of a power supply cable so as to communicate the first open hole, the second open hole, and the O ring.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a socket structure and a light source.

  DESCRIPTION OF RELATED ART Conventionally, the light-emitting device (LED illumination system) by which several LED light-emitting bulb | ball (light source body) was connected by the elongate lead wire exists (for example, patent document 1). This LED illumination system can be suitably used, for example, for illumination for Christmas.

JP, 2015-95401, A

  The inventors of the present invention considered that such a long light emitting device is preferably provided with higher waterproofness because it is assumed to be used under severe conditions such as being exposed to wind and rain. Moreover, in such a long light emitting device, there is also a demand for changing the distance between the light source bodies or changing the number at the site depending on the object to be attached.

  The present invention has been made in view of the above-described problems, and its object is to improve waterproofness and to easily change the distance and the number of light source bodies when used in a long light emitting device. It is providing the light source body provided with the socket structure which enables it, and the said socket structure.

  The inventors of the present invention have found that the above-mentioned problems can be solved by adopting the following configuration, and have completed the present invention.

That is, the socket structure according to the present invention is
Socket part,
And a bracket portion detachable from the socket portion;
The bracket portion has a protruding portion in which a first through hole is formed in a protruding direction,
The socket portion has a recess fitted to the protrusion, and a second through hole formed in the recess.
An O-ring is provided between the protrusion and the recess,
It is characterized in that it is possible to penetrate the cable for electric supply so that the 1st penetration hole, the 2nd penetration hole, and the O ring may be connected.

According to the above configuration, it is possible to insert the power feeding cable so that the first through hole, the second through hole, and the O-ring communicate with each other. Therefore, from the outside of the socket structure to the inside of the socket structure It is possible to attach and remove the feeding cable. Since the feeding cable can be attached to and detached from the socket structure, when connecting a plurality of light sources (a light source having a socket structure), the feeding cable should be of a desired length and then connected. do it. Moreover, when changing the space | interval of several light source bodies, after removing the cable for electric power feeding and adjusting length, what is necessary is to mount | wear again. Moreover, when changing the number of light source bodies, after increasing or reducing the number of light source bodies and power feeding cables, the power feeding cables may be attached again. As described above, according to the above configuration, it is possible to easily change the distance and the number of light source bodies.
Further, according to the above configuration, the O-ring is provided between the protrusion and the recess, and the power supply cable is inserted so as to connect the first through hole, the second through hole, and the O ring. Since it is possible to insert the feeding cable, the passage of water from the outside of the socket structure to the inside is blocked. Therefore, it is excellent in waterproofness.

In the above configuration, the socket portion is provided with a fitting for supplying power to the electric component,
It is preferable that the metal fitting sandwiches a power supply cable, which is inserted so as to connect the first through hole, the second through hole, and the O-ring, by elastic deformation of a metal forming the metal fitting.

  The cable for feeding can be securely connected to the fitting by sandwiching the cable for feeding by elastic deformation of metal constituting the fitting.

In the above configuration, an outer socket portion provided to cover the outer periphery of the socket portion is provided.
The outer socket portion has a mounting portion for mounting an electrical component,
The mounting portion and the metal fitting are electrically connected in the outer socket portion,
Preferably, an O-ring is provided between the socket and the outer socket.

  If an O-ring is provided between the socket portion and the outer socket portion, the water intrusion path to the inside is blocked from the connection portion between the socket portion and the outer socket portion. Therefore, it is excellent by the waterproofness of the whole socket structure. Moreover, since the outer socket part has the attaching part for attaching an electrical component (for example, LED as a light source), it can suppress that water contacts especially an attaching part.

Further, a light source according to the present invention is
The socket structure described above,
And a light source replaceably mounted to the mounting portion.

According to the above configuration, since the socket structure described above is provided, when used for a long light emitting device, it is possible to be excellent in waterproofness and to easily change the distance and the number of light source bodies. Become.
Moreover, since the light source is attached to the said mounting part exchangeably, it can be easily changed into the light source which emits a desired color, for example. In addition, when the light source has a defect (for example, in the case of deterioration due to long-term use, etc.), it can be easily replaced.

In the above configuration, a cover that covers the light source is provided.
Preferably, an O-ring is provided between the cover and the outer socket portion.

  When a cover covering the light source is provided and an O-ring is provided between the cover and the outer socket portion, a water intrusion path to the inside is blocked from the connection portion between the cover and the outer socket portion. Therefore, it is excellent by the waterproofness of the whole light source body.

  According to the present invention, when used in a long light emitting device, a socket structure having excellent waterproofness and capable of easily changing the spacing and the number of light source bodies, and the socket structure Can be provided.

It is a front view which shows the light source body which concerns on this embodiment typically. It is a bottom view of the light source body shown in FIG. FIG. 2 is a perspective sectional view of the light source shown in FIG. It is a whole disassembled perspective view of the light source body shown in FIG. It is a perspective view of the socket part with which the light source body shown in FIG. 1 is provided. It is a bottom view of the socket part shown in FIG. FIG. 6 is a perspective sectional view of the socket shown in FIG. 5; It is a perspective view of the outer socket part with which the light source body shown in FIG. 1 is provided. It is a perspective view of the LED unit with which the light source body shown in FIG. 1 is provided. It is a perspective view which shows the positional relationship of a socket part and a bracket part before inserting the cable for electric power feeding. It is a perspective view which shows the positional relationship of a socket part and a bracket part after penetrating the cable for electric power feeding. It is sectional drawing of the light source body in the state of FIG.

  Hereinafter, the socket structure and the light source according to the present embodiment will be described with reference to the drawings. In addition, the socket structure which concerns on this embodiment is provided in the light source body. Therefore, in the following, the light source will be described, and the socket structure will be described therein.

  FIG. 1 is a front view schematically showing the light source unit according to the present embodiment, FIG. 2 is a bottom view thereof, FIG. 3 is a perspective sectional view thereof, and FIG. FIG. FIG. 5 is a perspective view of a socket portion provided in the light source shown in FIG. 1, FIG. 6 is a bottom view thereof, and FIG. 7 is a perspective sectional view thereof. FIG. 8 is a perspective view of an outer socket portion provided in the light source shown in FIG. FIG. 9 is a perspective view of an LED unit provided in the light source shown in FIG.

As shown in FIGS. 1, 3 and 4, the light source body 10 includes a socket structure 12, an outer socket portion 60, an LED unit 80, and a cover 90. As shown in FIG. 4, the socket structure 12 has a cylindrical socket portion 40 and a bracket portion 20 which can be attached to and detached from the socket portion 40. Further, the outer socket portion 60 is detachably provided to the socket portion 40 so as to cover the outer periphery 43 and the upper portion 44 of the socket portion 40. In addition, the LED unit 80 is detachably attached to the attachment portion 62 provided in the outer socket portion 60. Further, the cover 90 is detachably provided to the outer socket portion 60 so as to cover the LED unit 80.
Hereinafter, the bracket portion 20, the socket portion 40, the outer socket portion 60, the LED unit 80, and the cover 90 will be described in detail.

  As shown in FIG. 4, the bracket portion 20 includes a circular flat plate portion 22, three cylindrical projecting portions 24 extending upward from the flat plate portion 22 (left side in FIG. 4), and an outer periphery from the outer periphery of the flat plate portion 22. And three socket fixing portions 28 extending in

  As shown in FIG. 2, on the lower surface (right side in FIG. 4) of the flat plate portion 22, three power feeding cable insertion openings 30 are provided.

  As shown in FIG. 4, the three protrusions 24 are respectively provided corresponding to the power supply cable insertion port 30, and have a tubular shape having a first through hole 26 inside in the protrusion direction. That is, the power supply cable insertion port 30 and the first through hole 26 communicate with each other.

  As shown in FIG. 4, the three socket fixing portions 28 are U-shaped, and provided at equal intervals on the outer periphery of the flat plate portion 22. The first protrusion 46 or the second protrusion 48 provided on the outer periphery 43 of the socket portion 40 is engaged with the socket fixing portion 28 (see FIGS. 4 and 5). The first protrusion 46 is provided on the side far from the bracket portion 20, and the second protrusion 48 is provided on the side near the bracket portion 20.

  As shown in FIGS. 6 and 7, the socket portion 40 has a recess 50 fitted to the outer periphery of the protrusion 24 of the bracket 20, and the recess 50 is provided with a second through hole 51. There is.

  As shown in FIGS. 4 and 7, an O-ring 52 is provided between the protrusion 24 of the bracket 20 and the recess 50 of the socket 40.

  As shown in FIGS. 4, 5 and 7, a metal fitting 55 for supplying power to the LED 82 is provided on the upper portion 44 of the socket portion 40. The metal fitting 55 is made of metal, and is electrically connected to the fixing portion 56 for sandwiching and fixing the lead wire 102 of the power supply cable 100 below the upper portion 44 and electrically connecting to the LED unit 80 above the upper portion 44 And the terminal portion 57 of the

  Here, a method of attaching the power supply cable 100 to the light source body 10 will be described. FIG. 10 is a perspective view showing the positional relationship between the socket portion and the bracket portion before the feeding cable is inserted. FIG. 11 is a diagram showing the socket portion and the bracket portion after the feeding cable is inserted. It is a perspective view which shows positional relationship. FIG. 12 is a cross-sectional view of the light source in the state of FIG. However, in FIG. 10 and FIG. 11, the cable for feeding is not illustrated. As shown in FIG. 4 and FIG. 12, the power supply cable 100 is composed of the lead wire 102 and the insulating coating 104 covering the lead wire 102, and the insulating coating 104 is removed at the tip portion, The line 102 is exposed.

  First, at the stage before inserting the feeding cable 100, as shown in FIG. 10, the bracket portion 20 is not completely fitted into the socket portion 40. In FIG. 10, the socket fixing portion 28 is locked to the second protrusion 48. The O-ring 52 is provided between the projection 24 and the recess 50, but in the state of FIG. 10, the O-ring 52 is not crushed.

  In this state, when the feeding cable 100 is inserted from the feeding cable insertion port 30 of the bracket portion 20, the feeding through the first through hole 26, the O ring 52 and the second through hole 51 is established. The cable 100 is inserted. The inner diameter of the O-ring 52 is set to be slightly smaller than the outer diameter of the power supply cable 100. Therefore, in the state of FIG. 10, the power supply cable 100 can be inserted so as to connect the first through hole 26, the O-ring 52 and the second through hole 51.

  Here, the fixing portion 56 included in the metal fitting 55 has a plate portion 58 disposed obliquely to the direction in which the power supply cable 100 is inserted and a hole 59 provided in the plate portion 58 (FIG. 3, FIG. 3). 7). The shape of the hole 59 may be rectangular or circular (in the present embodiment, rectangular). The plate portion 58 is provided with a slit 58 a so as to divide the hole 59 into two. When the feeding cable 100 inserted from the bracket portion 20 side is further pushed in and the lead wire 102 is pressed against the plate portion 58, first, a part of the diameter of the lead wire 102 enters the hole 59. Then, when the lead wire 102 is further pushed, the plate portion 58 is pushed and spread. Thereafter, when all the lead wires 102 enter the holes 59, the plate portion 58 tries to return from the elastically deformed state to the original state. As a result, the lead wire 102 is sandwiched, and the power supply cable 100 is securely connected to the fitting 55.

Next, as shown in FIGS. 11 and 12, the bracket portion 20 is pushed in a direction approaching the socket portion 40, and the socket fixing portion 28 is engaged with the first projection 46. In the state of FIG. 11 and FIG. 12, the O-ring 52 is pinched and crushed between the protrusion 24 and the recess 50. Therefore, in the state of FIGS. 11 and 12, the inner diameter of the O-ring 52 is smaller than the outer diameter of the power supply cable 100, and the power supply cable 100 can not slide on the O-ring 52. Therefore, the power supply cable 100 can be more reliably prevented from coming off the light source body 10. In addition, since the O-ring 52 is crushed and the power supply cable 100 is tightened, there is a water permeation path from the outside of the socket structure 12 (in particular, from the power supply cable insertion port 30 side) to the inside. It is cut off. Therefore, it is excellent in waterproofness.
That is, in the light source unit 10 according to the present embodiment, after inserting the cable 100 into the O-ring 52, the bracket portion 20 compresses the O-ring 52 to prevent water from entering the socket 40. ing. More specifically, the compression with the O-ring 52 fills the waterproof with the cable 100 on the inner diameter side of the O-ring 52 and also the waterproof with the socket 40. The material of the O-ring 52 is not particularly limited, but a rubber material is preferable from the viewpoint of waterproofness. In addition, when removing the cable 100 for electric power feeding from the socket structure 12, if the plate part 58 is spread using a rod-shaped jig etc., it can remove easily.

  The method for attaching the power supply cable 100 to the light source body 10 has been described above.

  As shown in FIGS. 3, 4 and 5, the terminal portion 57 protrudes upward from the upper portion 44 of the socket portion 40 and reaches the inside of the outer socket portion 60. The terminal portion 57 is composed of two pairs of plate-like members 57a, and a bent portion 57b is formed at the tip. The terminal portion 57 can hold and fix the LED unit 80 by two pairs of plate-like members 57a.

  As shown in FIGS. 4 and 5, an O-ring 70 is provided on the upper outer periphery of the socket portion 40, and a third protrusion 49 is formed on the lower side of the portion where the O-ring 70 is provided. ing.

  As shown in FIGS. 4 and 8, the outer socket portion 60 is hollow, and the terminal portion 57 is disposed inside. Further, on the upper side of the outer socket portion 60, a mounting portion 62 in which a groove into which the LED unit 80 can be fitted is formed is provided.

  At the lower side surface of the outer socket portion 60, two rectangular holes 68 are formed. The inner diameter of the lower side of the outer socket portion 60 is set to be slightly smaller than the outer diameter of the O-ring 70. When the outer socket portion 60 is pushed to the upper side of the socket portion 40, the O-ring 70 is crushed and the outer socket The inside of the unit 60 is airtight. Further, when the outer socket portion 60 is pushed to the socket portion 40 side, the hole 68 of the outer socket portion 60 is engaged with the third projection 49 of the socket portion 40. Thus, the outer socket portion 60 can be prevented from falling off. The material of the O-ring 70 is not particularly limited, but a rubber material is preferable from the viewpoint of waterproofness.

  As shown in FIG. 9, the LED unit 80 includes an LED 82 (in the present embodiment, a shell-type LED) and an LED case 86. The LED 82 corresponds to the electrical component of the present invention and the light source.

  The LED 82 has a light emitting unit 83 and a lead frame 84 for supplying power to the light emitting unit.

The LED case 86 has a bottomed cylindrical pedestal portion 86a and a rectangular solid fixing portion 86b continuously formed from the bottom of the pedestal portion 86a.

  The lower end of the light emitting unit 83 of the LED 82 is fitted in the recess of the pedestal 86 a. Further, a through hole 88 which is penetrated to the lower end of the fixing portion 86 b is provided in the concave portion, and the lead frame 84 is inserted through the through hole 88. The lead frame 84 is folded back to the side of the LED case after being inserted into the through hole 88. There are two lead frames 84. One lead frame 84 is folded back to one side, and the other lead frame 84 is folded back to the other side. A groove 86 c is provided on the side surface, and the lead frame 84 is folded back along the groove 86 c.

  As shown in FIG. 3 and FIG. 4, in the LED unit 80, the fixing portion 86 b is fitted in the mounting portion 62 of the outer socket portion 60. At this time, the terminal portion 57 of the bracket 55 is arranged to be in contact with the lead frame 84. Specifically, the groove 86 c of the LED unit 80 is fitted into the ridge formed on the attachment portion 62 so as to correspond, and the lead frame 84 is disposed so as to be sandwiched by the plate-like member 57 a of the terminal portion 57 Ru. A slight recess 86d (see FIG. 9) is provided on the side surface of the LED case 86, and a bent portion 57b provided at the tip of the plate 57a is in contact with the LED case 86. This prevents the LED unit 80 from falling off the outer socket portion 60.

  As shown in FIGS. 4 and 8, an O-ring 71 is provided on the upper outer periphery of the outer socket portion 60, and a fourth protrusion 66 is formed on the lower side of the portion where the O-ring 71 is provided. It is done.

  As shown in FIG. 4, the cover 90 has a tubular shape in which only the outer socket portion 60 side is open, and rectangular holes 92 are formed at two places on the lower side surface. The inner diameter of the cover 90 is set to be slightly smaller than the outer diameter of the O-ring 71. When the cover 90 is pushed to the upper side of the outer socket portion 60, the O-ring 71 is crushed and the inside of the cover 90 becomes airtight. . When the cover 90 is further pushed into the outer socket portion 60, the hole 92 of the cover 90 is engaged with the fourth projection 66 of the outer socket portion 60. Thereby, the cover 90 can be prevented from falling off. The material of the O-ring 71 is not particularly limited, but a rubber material is preferable from the viewpoint of waterproofness.

As described above, according to the socket structure 12 and the light source 10, the power supply cable 100 can be inserted so as to connect the first through hole 26, the second through hole 51, and the O ring 52. Because of the presence, the power supply cable 100 can be attached and detached from the outside of the socket structure 12 to the inside of the socket structure. Since the feeding cable 100 can be attached to and detached from the socket structure 12, when the plurality of light sources 10 (the light source 10 having the socket structure 12) are connected, the feeding cable 100 has a desired length. After connection, it is good to connect. Moreover, when changing the space | interval of the several light source body 10, after removing the cable 100 for electric power feeding and adjusting length, what is necessary is to mount | wear again. When the number of light source units 10 is changed, the number of the light source units 10 and the number of the power supply cables 100 may be increased or decreased, and then the power supply cable 100 may be attached again. Thus, according to the socket structure 12 and the light source 10, it is possible to easily change the distance and the number of the light sources 10.
Further, an O-ring 52 is provided between the protrusion 24 and the recess 50, and the power supply cable 100 is inserted so as to allow the first through hole 26, the second through hole 51, and the O ring 52 to communicate with each other. Since it is possible to make the feed cable 100 pass through, the passage of water from the outside of the socket structure 12 to the inside is blocked. Therefore, it is excellent in waterproofness.

  Further, according to the socket structure 12 and the light source 10, since the O-ring 70 is provided between the socket 40 and the outer socket 60, the connection between the socket 40 and the outer socket 60 is performed. From the part, the passage of water into the interior is blocked (see FIG. 12). Therefore, the waterproofness of the entire socket structure 12 is more excellent. Moreover, since the outer socket part 60 also has a part of attachment part 62 also inside, it can suppress the permeation of the water to the attachment part 62 from the inside side especially.

  Further, according to the light source 10, since the LED 82 is attached exchangeably to the attachment portion 62, for example, it can be easily changed to the LED 82 that emits a desired color. Moreover, it can replace | exchange easily, when a malfunction arises in a light source (LED) (for example, in the case of the deterioration by long-term use, etc.).

  Further, according to the light source 10, the cover 90 covering the LED 82 is provided, and the O-ring 71 is provided between the cover 90 and the outer socket portion 60. Therefore, the connection portion between the cover 90 and the outer socket portion 60 Then, the passage of water into the interior is shut off (see FIG. 12). Accordingly, the waterproofness of the entire light source 10 is excellent.

  In the embodiment described above, the case of three power supply cable insertion openings 30 has been described. For example, when connecting a plurality of light source units 10 in parallel, it can be used for three terminals (for example, two cores on the plus side and one core on the minus side) as in this embodiment. However, in the present invention, the power supply cable insertion port is not limited to three. For example, when used as two terminals (for example, plus one core, minus one core), two may be used. Note that one of the three power feeding cable insertion holes may be closed with a resin or the like to be used for two terminals.

  In the embodiment described above, the case where the light source of the present invention is the LED 82 has been described. However, the light source in the present invention is not limited to the LED as long as it emits light by being supplied with power. For example, a light bulb having a light emitting element such as a filament or a laser element may be used.

  In the embodiment described above, the case where the electrical component of the present invention is a light source (LED 82) has been described. However, the electrical component in the present invention is not limited to the light source as long as it can perform any function by being supplied with power. As said electric component, resistance (especially limiting resistance) is mentioned, for example. For example, in the case of preparing a plurality of lines in which a plurality of socket structures are connected in series and connecting the plurality of lines in a parallel system, uneven brightness may be obtained by providing a light source and a limiting resistor for each line. It becomes possible to suppress. Specifically, a method of attaching a light source to a part of socket structures among a plurality of socket structures and attaching a limiting resistance to another socket structure can be mentioned. As another example of the electric component, various sensors (for example, an infrared sensor etc.) etc. are mentioned, for example.

  In the embodiment described above, the case where a plurality of socket structures are connected and used has been described. However, the socket structure of the present invention may be used alone without connecting a plurality. Even when used alone, it is possible to easily change the length of the power supply cable and to provide a socket structure having excellent waterproofness.

  In the embodiment described above, the case where the outer socket portion 60, the LED unit 80, and the cover 90 are detachable is described. However, the present invention is not limited to this example, and the outer socket portion, the LED unit, and the cover may be integrated, and may not be removable. For example, the outer socket portion, the LED unit, and the cover may be integrated by adhesion with an adhesive, or the outer socket portion, the LED unit, and the cover may be integrally formed. . In this case, replacement is possible for each unit in which the outer socket portion, the LED unit, and the cover are integrated.

  In the embodiment described above, the O-ring 52 is crushed by the bracket portion 20 and the socket portion 40, and the water intrusion path from the outside of the socket structure 12 (especially from the power supply cable insertion port 30 side) to the inside is The case where it shuts off and improves waterproofness was explained. However, in the present invention, the O-ring may be in a non-crushed state. Even if it is not crushed, if the inner diameter of the O-ring is set slightly smaller than the outer diameter of the power supply cable, the water intrusion path from the power cable insertion side to the inside is blocked. , Waterproof. In addition, since the power supply cable is fixed by the metal fitting, it is possible to prevent the power supply cable from coming off. However, it is preferable that the O-ring is crushed by the bracket portion and the socket portion as in this embodiment from the viewpoint of waterproofness and stability of fixation.

  In the embodiment described above, the case where the socket portion is cylindrical has been described. In addition, in this specification, "cylindrical" includes cylindrical and square cylindrical. However, in the socket portion in the present invention, if there is a space in which the power supply cable can be inserted so that the first through hole, the second through hole, and the O-ring communicate with each other, The shape is not particularly limited. For example, the outer diameter of the socket portion may be rectangular and the inner diameter may be circular.

  In the embodiment described above, the case where one bracket part is detachable to one socket part has been described. However, in the present invention, the socket portion is not limited to this example as long as the bracket portion can be attached and detached. For example, a plurality of bracket portions may be configured to be removable with respect to one socket portion. Even with such a configuration, the passage of water from the outside of the socket structure to the inside is blocked, so the water resistance is excellent.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the example mentioned above, It is possible in the range which satisfies the structure of this invention to make a design change suitably.

DESCRIPTION OF SYMBOLS 10 light source body 12 socket structure 20 bracket part 22 flat part 24 protrusion part 25 bottom part 26 1st through hole 28 socket fixing part 30 cable insertion port 40 for electricity supply socket part 43 outer periphery 44 upper part 46 1st protrusion 48 2nd Protrusion 49 Third projection 50 Recess 51 Second through hole 52 O ring 55 Bracket 56 Fixing portion 57 Terminal portion 60 Outer socket portion 62 Mounting portion 70 O ring 71 O ring 80 LED unit 82 LED
86 LED case 90 Cover 100 Power supply cable 102 Lead wire 104 Insulation coating

Claims (5)

Socket part,
And a bracket portion detachable from the socket portion;
The bracket portion has a protruding portion in which a first through hole is formed in a protruding direction,
The socket portion has a recess fitted to the protrusion, and a second through hole formed in the recess.
An O-ring is provided between the protrusion and the recess,
A socket structure characterized in that a power feeding cable can be inserted so as to connect the first through hole, the second through hole, and the O-ring. The socket portion is provided with a fitting for supplying electric power to the electric component,
The metal fitting is characterized in that a power supply cable inserted so as to connect the first through hole, the second through hole, and the O-ring is sandwiched by elastic deformation of a metal forming the metal fitting. The socket structure according to claim 1. An outer socket portion provided to cover an outer periphery of the socket portion;
The outer socket portion has a mounting portion for mounting an electrical component,
The mounting portion and the metal fitting are electrically connected in the outer socket portion,
The socket structure according to claim 2, wherein an O-ring is provided between the socket portion and the outer socket portion. A socket structure according to claim 3;
A light source body comprising: a light source exchangeably mounted on the mounting portion. A cover covering the light source;
The light source according to claim 4, wherein an O-ring is provided between the cover and the outer socket portion.

Images