JP2017108157A

JP2017108157A - Light-emitting device

Info

Publication number: JP2017108157A
Application number: JP2017026576A
Authority: JP
Inventors: 正哲鈴木; Masatetsu Suzuki
Original assignee: TS Tech Co Ltd
Current assignee: TS Tech Co Ltd
Priority date: 2017-02-16
Filing date: 2017-02-16
Publication date: 2017-06-15
Anticipated expiration: 2030-10-18
Also published as: JP6383029B2

Abstract

PROBLEM TO BE SOLVED: To provide a light-emitting device which inhibits temperature rise of a light emitting element.SOLUTION: A light-emitting device 10 includes: a substrate 14 on which a light-emitting element 12 is mounted; a case 22 for holding the substrate 14; and a cover part 24 provided on the case 22 and covering the light-emitting element 12. The cover part 24 has a cylindrical part 80 in which a light guide body 25 for guiding light emitted from the light-emitting element 12 can be mounted. A space S is provided between a rear surface 28 of the substrate 14 and an inner surface 40a of a bottom part 40 of the case 22 so as to overlap with the cylindrical part 80 in an axial direction of the cylindrical part 80. The cover part 24 contacts with a surface of the substrate 14 along each long side of the substrate 14.SELECTED DRAWING: Figure 8

Description

本発明は、発光素子が実装された基板を有する発光装置に関する。 The present invention relates to a light emitting device having a substrate on which a light emitting element is mounted.

従来から、車両室内の照明等に、ＬＥＤ（ＬｉｇｈｔＥｍｉｔｔｉｎｇＤｉｏｄｅ）を備えた発光装置が広汎に利用されている。 2. Description of the Related Art Conventionally, light emitting devices including LEDs (Light Emitting Diodes) have been widely used for lighting in vehicle interiors.

この種の発光装置として、ケース部とこれに嵌合するカバー部を備え、前記ケース部と前記カバー部の間に形成される室に砲弾型のＬＥＤランプと接続端子を支持するプリント基板を配設すると共に、前記ケース部と前記カバー部とで前記プリント基板を挟持する技術的思想が提案されている（特許文献１参照）。 As this type of light emitting device, a case portion and a cover portion fitted to the case portion are provided, and a bullet-type LED lamp and a printed circuit board that supports connection terminals are arranged in a chamber formed between the case portion and the cover portion. In addition, a technical idea has been proposed in which the printed circuit board is sandwiched between the case portion and the cover portion (see Patent Document 1).

また、この特許文献１には、前記ＬＥＤランプから発光された光を導光する棒状の導光体を内部に挿入可能な筒部を前記ケース部に設け、前記筒部の内面に、前記導光体を位置決めするための突起を形成することにより、前記導光体と前記ＬＥＤランプの距離を一定に保つ技術的思想についても開示されている。 Further, in this Patent Document 1, a cylindrical portion in which a rod-shaped light guide for guiding light emitted from the LED lamp can be inserted is provided in the case portion, and the guide is provided on the inner surface of the cylindrical portion. The technical idea of keeping the distance between the light guide and the LED lamp constant by forming a protrusion for positioning the light body is also disclosed.

特開２００９−２３９２５５号公報JP 2009-239255 A

本発明は、上記特許文献１に関連するものであり、発光素子の温度上昇を抑えることができる発光装置を提供することを目的とする。 The present invention relates to the above-mentioned Patent Document 1, and an object thereof is to provide a light emitting device capable of suppressing a temperature rise of a light emitting element.

本発明に係る発光装置は、発光素子と、前記発光素子が実装される略長方形状の基板と、前記基板が保持される支持部材と、前記支持部材に設けられて前記発光素子を覆うカバー部と、を備える発光装置であって、前記カバー部は、前記発光素子から発光された光を導く導光体を内部に装着可能な筒部を有し、前記基板の裏面と前記支持部材の底部の内面との間には、前記筒部の軸線方向に前記筒部と重なるように隙間が設けられ、前記カバー部は、前記基板の各長辺に沿って前記基板の表面に当接している、ことを特徴とする。 The light-emitting device according to the present invention includes a light-emitting element, a substantially rectangular substrate on which the light-emitting element is mounted, a support member that holds the substrate, and a cover portion that is provided on the support member and covers the light-emitting element. The cover portion has a cylindrical portion in which a light guide that guides light emitted from the light emitting element can be mounted, and the back surface of the substrate and the bottom portion of the support member A gap is provided between the inner surface of the substrate and the inner surface of the tube portion so as to overlap the tube portion in the axial direction of the tube portion, and the cover portion is in contact with the surface of the substrate along each long side of the substrate. It is characterized by that.

上記の発光装置において、前記基板の長手方向における前記隙間の寸法は、前記基板の長手方向における前記筒部の寸法よりも長いことが好ましい。 In the above light emitting device, it is preferable that the dimension of the gap in the longitudinal direction of the substrate is longer than the dimension of the cylindrical portion in the longitudinal direction of the substrate.

上記の発光装置において、前記発光素子は、前記筒部に隣接して配置されており、
前記隙間は、前記筒部の軸線方向に前記発光素子と重なるように設けられていることが好ましい。 In the light emitting device, the light emitting element is disposed adjacent to the cylindrical portion,
The gap is preferably provided so as to overlap the light emitting element in the axial direction of the cylindrical portion.

上記の発光装置において、前記基板には、前記基板を厚さ方向に貫通する接続端子が設けられており、前記接続端子の一部は、前記隙間内に位置していることが好ましい。 In the above light emitting device, it is preferable that a connection terminal penetrating the substrate in a thickness direction is provided on the substrate, and a part of the connection terminal is located in the gap.

上記の発光装置において、前記基板には、前記発光素子と前記接続端子との間に電子部品が配置されており、前記隙間は、前記発光素子、前記接続端子及び前記電子部品のそれぞれと前記筒部の軸線方向に重なるように設けられていることが好ましい。 In the above light-emitting device, an electronic component is disposed on the substrate between the light-emitting element and the connection terminal, and the gap is formed between the light-emitting element, the connection terminal, the electronic component, and the cylinder. It is preferable that they are provided so as to overlap in the axial direction of the part.

本発明の実施の形態に係る発光装置の斜視図である。1 is a perspective view of a light emitting device according to an embodiment of the present invention. 図１に示す発光装置の分解斜視図である。It is a disassembled perspective view of the light-emitting device shown in FIG. 図２に示す発光装置を構成するケースの平面図である。It is a top view of the case which comprises the light-emitting device shown in FIG. 図２に示す発光装置のカバー部を背面側から視た斜視図である。It is the perspective view which looked at the cover part of the light-emitting device shown in FIG. 2 from the back side. 前記カバー部を構成する筒部の内部に導光体を装着する手順を説明するための断面説明図である。It is a cross-sectional explanatory drawing for demonstrating the procedure which attaches a light guide to the inside of the cylinder part which comprises the said cover part. 前記カバー部を装着する前の状態における図１のＶＩ−ＶＩ線に沿った断面図である。It is sectional drawing in alignment with the VI-VI line of FIG. 1 in the state before mounting | wearing with the said cover part. 前記カバー部を装着した後の状態における図１のＶＩＩ−ＶＩＩ線に沿った断面図である。It is sectional drawing along the VII-VII line of FIG. 1 in the state after mounting | wearing with the said cover part. 図１のＶＩＩＩ−ＶＩＩＩ線に沿った断面図である。It is sectional drawing along the VIII-VIII line of FIG. 図１に示す発光装置を車体パネルに配設した状態を示す一部断面平面図である。It is a partial cross section top view which shows the state which has arrange | positioned the light-emitting device shown in FIG. 1 in the vehicle body panel. 本発明の変形例に係るカバー部及び導光体を備えた発光装置の分解斜視図である。It is a disassembled perspective view of the light-emitting device provided with the cover part and light guide which concern on the modification of this invention. 本発明の変形例に係るカバー部及び導光体を備えた発光装置の断面図である。It is sectional drawing of the light-emitting device provided with the cover part and light guide which concern on the modification of this invention.

以下、本発明に係る発光装置について、好適な実施の形態を挙げ、添付の図面を参照しながら詳細に説明する。 DESCRIPTION OF EMBODIMENTS Hereinafter, a light emitting device according to the present invention will be described in detail with reference to the accompanying drawings by way of preferred embodiments.

本実施の形態に係る発光装置１０は、車両室内の照明に用いられ、図１及び図２に示すように、光源としての発光素子１２と、前記発光素子１２が実装されて平面視で長方形状に形成された基板１４と、前記基板１４のうち前記発光素子１２が実装された面（以下、実装面と称することがある。）１６に装着されて前記発光素子１２に電気的に接続された電子部品１８と、前記基板１４に接続される一対の接続端子（ターミナル）２０ａ、２０ｂと、前記基板１４等が収容されるケース（支持部材）２２と、前記ケース２２に装着されるカバー部２４と、前記発光素子１２から発光された光を導く導光体２５とを備える。 A light-emitting device 10 according to the present embodiment is used for illumination in a vehicle interior. As shown in FIGS. 1 and 2, a light-emitting element 12 as a light source and the light-emitting element 12 are mounted and rectangular in a plan view. The substrate 14 formed on the substrate 14 and a surface of the substrate 14 on which the light emitting element 12 is mounted (hereinafter sometimes referred to as a mounting surface) 16 are attached and electrically connected to the light emitting element 12. An electronic component 18, a pair of connection terminals (terminals) 20 a and 20 b connected to the substrate 14, a case (support member) 22 in which the substrate 14 and the like are accommodated, and a cover portion 24 attached to the case 22. And a light guide 25 that guides the light emitted from the light emitting element 12.

発光素子１２としては、例えば、ＬＥＤが用いられるが、有機ＥＬ等を用いることも可能である。このようなＬＥＤや有機ＥＬは、公知のものを利用することができる。発光素子１２は、基板１４の長手方向中央よりもやや一端部側に偏在している。 For example, an LED is used as the light emitting element 12, but an organic EL or the like can also be used. Known LEDs and organic EL can be used. The light emitting element 12 is unevenly distributed slightly on one end side from the longitudinal center of the substrate 14.

電子部品１８は、発光素子１２への電源の供給制御等を行うためのものであって、抵抗器やダイオード等が例示される。前記電子部品１８は、基板１４の短手方向の略中央であって、長手方向中央よりもやや他端部側に偏在している。 The electronic component 18 is used for controlling supply of power to the light emitting element 12, and examples thereof include a resistor and a diode. The electronic component 18 is substantially centered in the short side direction of the substrate 14 and is unevenly distributed on the other end side slightly from the center in the longitudinal direction.

基板１４の長手方向に沿って電子部品１８よりも他端側に近接して一対の貫通孔２６ａ、２６ｂが形成されている。前記貫通孔２６ａ、２６ｂには前記接続端子２０ａ、２０ｂの一端部が挿入されるものであって、その離間間隔は、任意に設定可能である。この場合、これら貫通孔２６ａ、２６ｂに前記接続端子２０ａ、２０ｂを挿入して固定した状態で、該接続端子２０ａ、２０ｂ同士が接触しない程度の間隔が好ましい。なお、基板１４の裏面２８には、図示しないが、導体が面状、例えば、箔状に配設されており、発光素子１２、電子部品１８及び接続端子２０ａ、２０ｂは、前記導体を介して電気的に接続される。放熱効果を得るためである。 A pair of through holes 26 a and 26 b are formed along the longitudinal direction of the substrate 14 closer to the other end side than the electronic component 18. One end portions of the connection terminals 20a and 20b are inserted into the through holes 26a and 26b, and the separation interval can be arbitrarily set. In this case, it is preferable that the connection terminals 20a and 20b are not in contact with each other in a state where the connection terminals 20a and 20b are inserted and fixed in the through holes 26a and 26b. Although not shown, a conductor is arranged in a planar shape, for example, a foil shape, on the back surface 28 of the substrate 14, and the light emitting element 12, the electronic component 18, and the connection terminals 20 a and 20 b are interposed via the conductor. Electrically connected. This is to obtain a heat dissipation effect.

図２及び図８から諒解されるように、接続端子２０ａの両端面は、平坦に形成されている。但し、前記接続端子２０ａの両端部の形状は、特に限定されず、例えば、先細りのテーパ状に形成されていてもよい。この場合、接続端子２０ａの一端部を前記貫通孔２６ａに挿入し易くなると共に、接続端子２０ａの他端部を後述する電力供給用の外部コネクタに装着し易くなる。 As can be understood from FIGS. 2 and 8, both end surfaces of the connection terminal 20a are formed flat. However, the shape of both ends of the connection terminal 20a is not particularly limited, and may be formed in a tapered shape, for example. In this case, one end of the connection terminal 20a can be easily inserted into the through hole 26a, and the other end of the connection terminal 20a can be easily attached to an external connector for power supply described later.

接続端子２０ａは、断面矩形状の細長い金属棒（金属板）で構成され、基板１４の貫通孔２６ａに挿入された状態で、基板１４に半田付けされる溶着部（図８参照）３０と、前記溶着部３０に連なる弧状の湾曲部３２と、前記湾曲部３２に連なり且つ他方の端部側に延伸するリード部３４とを有する。 The connection terminal 20a is formed of an elongated metal rod (metal plate) having a rectangular cross section, and is welded to the substrate 14 in a state of being inserted into the through hole 26a of the substrate 14 (see FIG. 8). It has an arcuate curved portion 32 that continues to the welded portion 30 and a lead portion 34 that continues to the curved portion 32 and extends toward the other end.

接続端子２０ａの厚みＴ１（図８参照）は、湾曲部３２を撓ませることが可能な程度の厚みに設定されている。これにより、湾曲部３２を撓ませて溶着部３０とリード部３４との位置関係を調整することが可能となる。実際、リード部３４は、図示しない電力供給用の外部コネクタに接続されるものであって、これにより、外部から発光素子１２に電力を供給することができる。なお、貫通孔２６ｂに挿入される接続端子２０ｂは、接続端子２０ａと同一構成であるため、その詳細な説明を省略する。 A thickness T1 (see FIG. 8) of the connection terminal 20a is set to such a thickness that the bending portion 32 can be bent. As a result, the bending portion 32 can be bent to adjust the positional relationship between the welded portion 30 and the lead portion 34. Actually, the lead portion 34 is connected to an external connector for power supply (not shown), so that power can be supplied to the light emitting element 12 from the outside. Since the connection terminal 20b inserted into the through hole 26b has the same configuration as the connection terminal 20a, detailed description thereof is omitted.

図３に示すように、ケース２２は、幅広で一方向に延在し、基板１４が収容されるケース本体３６と、幅狭で前記ケース本体３６に接続されるコネクタ部３８とを有する。ケース本体３６とコネクタ部３８とは樹脂等で一体的に構成される。 As shown in FIG. 3, the case 22 has a case body 36 that is wide and extends in one direction and accommodates the board 14, and a connector portion 38 that is narrow and connected to the case body 36. The case body 36 and the connector portion 38 are integrally formed of resin or the like.

図６を参照して、ケース本体３６は、平面視で略長方形状に形成された底部４０と、前記底部４０の短手方向の両端部に設けられた一対の第１段差部４２ａ、４２ｂと、前記一対の第１段差部４２ａ、４２ｂのそれぞれに連なる一対の第２段差部４４ａ、４４ｂと、前記一対の第２段差部４４ａ、４４ｂのそれぞれに連なる一対の側壁部４６ａ、４６ｂと、前記底部４０に立設されて該側壁部４６ａ、４６ｂの上端部近傍まで延在する壁部４８と、前記壁部４８に対向して前記底部４０に立設される分厚い壁部５０とを有する。 Referring to FIG. 6, the case body 36 includes a bottom portion 40 formed in a substantially rectangular shape in plan view, and a pair of first step portions 42 a and 42 b provided at both ends in the short direction of the bottom portion 40. A pair of second stepped portions 44a, 44b connected to each of the pair of first stepped portions 42a, 42b, a pair of side wall portions 46a, 46b connected to each of the pair of second stepped portions 44a, 44b, It has a wall portion 48 that stands on the bottom portion 40 and extends to the vicinity of the upper end portions of the side wall portions 46 a and 46 b, and a thick wall portion 50 that stands on the bottom portion 40 and faces the wall portion 48.

第１段差部４２ａ、４２ｂは、側壁部４６ａ、４６ｂに沿って延びており、その一端部が壁部４８に接し、その他端部は壁部５０に接している。各第１段差部４２ａ、４２ｂは、底部４０の内面（基板１４との対向面）４０ａに連なる第１垂直面４３ａ、４３ｂと、前記第１垂直面４３ａ、４３ｂのそれぞれに連なる第１上面４５ａ、４５ｂを有する。 The first step portions 42 a and 42 b extend along the side wall portions 46 a and 46 b, one end portion thereof is in contact with the wall portion 48, and the other end portion thereof is in contact with the wall portion 50. Each of the first step portions 42a and 42b includes first vertical surfaces 43a and 43b that are continuous with the inner surface 40a of the bottom portion 40 (a surface facing the substrate 14), and a first upper surface 45a that is continuous with each of the first vertical surfaces 43a and 43b. , 45b.

第１垂直面４３ａ、４３ｂの幅（第１段差部４２ａ、４２ｂの高さ）Ｗ１は、基板１４の厚さＴ２と同程度の幅に設定されている。これにより、第１上面４５ａ、４５ｂに基板１４を載置した状態で、基板１４と底部４０の間に適度な隙間Ｓが形成されることとなる。これにより、発光素子１２及び電子部品１８から発生した熱を該隙間Ｓに拡散させることができるので、基板１４の裏面２８全体を底部４０に接触させる場合と比較して、発光素子１２及び電子部品１８の温度上昇を抑えることができる。 The widths W1 of the first vertical surfaces 43a and 43b (the heights of the first step portions 42a and 42b) W1 are set to be approximately the same as the thickness T2 of the substrate 14. Accordingly, an appropriate gap S is formed between the substrate 14 and the bottom portion 40 in a state where the substrate 14 is placed on the first upper surfaces 45a and 45b. Thereby, since the heat generated from the light emitting element 12 and the electronic component 18 can be diffused into the gap S, the light emitting element 12 and the electronic component are compared with the case where the entire back surface 28 of the substrate 14 is brought into contact with the bottom portion 40. The temperature rise of 18 can be suppressed.

第２段差部４４ａ、４４ｂは、側壁部４６ａ、４６ｂに沿って延びており、その一端部が壁部４８に接し、その他端部はコネクタ部３８に接している。各第２段差部４４ａ、４４ｂは、第１上面４５ａ、４５ｂのそれぞれに連なる第２垂直面４７ａ、４７ｂと、前記第２垂直面４７ａ、４７ｂのそれぞれに連なる第２上面４９ａ、４９ｂを有する。 The second step portions 44 a and 44 b extend along the side wall portions 46 a and 46 b, and one end portion thereof is in contact with the wall portion 48 and the other end portion thereof is in contact with the connector portion 38. Each of the second step portions 44a and 44b has second vertical surfaces 47a and 47b that are continuous with the first upper surfaces 45a and 45b, and second upper surfaces 49a and 49b that are continuous with the second vertical surfaces 47a and 47b, respectively.

第２垂直面４７ａ、４７ｂの幅（第２段差部４４ａ、４４ｂの高さ）Ｗ２は、基板１４の厚さＴ２よりも大きく設定されている。これにより、第１上面４５ａ、４５ｂに基板１４を載置した状態で、第２上面４９ａ、４９ｂが基板１４の実装面１６よりも上方に位置することとなる。 The width (the height of the second stepped portions 44a and 44b) W2 of the second vertical surfaces 47a and 47b is set to be larger than the thickness T2 of the substrate 14. Accordingly, the second upper surfaces 49a and 49b are positioned above the mounting surface 16 of the substrate 14 in a state where the substrate 14 is placed on the first upper surfaces 45a and 45b.

第２垂直面４７ａ、４７ｂ同士の間隔は、基板１４の短手方向の幅と略同一に設定されている。これにより、基板１４の短手方向の移動を制限することができる。 The interval between the second vertical surfaces 47a and 47b is set to be substantially the same as the width of the substrate 14 in the short direction. Thereby, the movement of the board | substrate 14 in the transversal direction can be restrict | limited.

図２に示すように、側壁部４６ａには所定間隔離間した複数（図では２つ）の装着孔（第２係合部）５２ａ、５２ｂが形成され、同様に側壁部４６ｂにも装着孔（第２係合部）５２ｃ、５２ｄが形成されている。装着孔５２ａ、５２ｂと装着孔５２ｃ、５２ｄは、四角形状に開口し、この構成は後述するカバー部２４の装着爪（第１係合部）７０ａ、７０ｂと、装着爪（第１係合部）７０ｃ、７０ｄのそれぞれの形状に対応する。 As shown in FIG. 2, a plurality of (two in the figure) mounting holes (second engaging portions) 52a and 52b spaced apart from each other by a predetermined distance are formed in the side wall portion 46a. Second engagement portions) 52c and 52d are formed. The mounting holes 52a and 52b and the mounting holes 52c and 52d are opened in a square shape, and this configuration is configured by mounting claws (first engaging portions) 70a and 70b of the cover portion 24 described later and mounting claws (first engaging portions). ) Corresponds to the respective shapes of 70c and 70d.

装着孔５２ａ、５２ｂと装着孔５２ｃ、５２ｄは、側壁部４６ａ、４６ｂの中央よりもやや上方に位置している。これにより、カバー部２４をケース２２に装着する際に、装着孔５２ａ、５２ｂと装着孔５２ｃ、５２ｄのそれぞれを側壁部４６ａ、４６ｂの中央よりも下方に位置する場合と比較して、装着爪７０ａ、７０ｂと装着爪７０ｃ、７０ｄにて外方に押される側壁部４６ａ、４６ｂの弾性変形量を小さくすることができるので、より小さい力で該カバー部２４を該ケース２２に装着することができる。 The mounting holes 52a and 52b and the mounting holes 52c and 52d are located slightly above the center of the side wall portions 46a and 46b. Accordingly, when the cover portion 24 is attached to the case 22, the attachment holes 52a and 52b and the attachment holes 52c and 52d are attached to the attachment claws as compared with the case where the attachment holes 52a and 52b are positioned below the center of the side wall portions 46a and 46b. Since the amount of elastic deformation of the side wall portions 46a and 46b pushed outward by the attaching claws 70c and 70d can be reduced, the cover portion 24 can be attached to the case 22 with a smaller force. it can.

また、側壁部４６ａの装着孔５２ａ、５２ｂは、ケース２２の長手方向において、側壁部４６ａの一端から装着孔５２ａまでの間隔、装着孔５２ａと装着孔５２ｂの間隔、及び、装着孔５２ｂから側壁部４６ａの他端までの間隔が等しくなるように配置されている。側壁部４６ｂの装着孔５２ｃは、装着孔５２ａに対向しており、側壁部４６ｂの装着孔５２ｄは、装着孔５２ｂに対向している。これにより、ケース２２の長手方向に装着孔５２ａ、５２ｂと装着孔５２ｃ、５２ｄを偏って位置する場合と比較して、該カバー部２４をバランス良く保持することができる。 Further, the mounting holes 52a and 52b of the side wall portion 46a are spaced in the longitudinal direction of the case 22 from one end of the side wall portion 46a to the mounting hole 52a, the distance between the mounting hole 52a and the mounting hole 52b, and from the mounting hole 52b to the side wall. It arrange | positions so that the space | interval to the other end of the part 46a may become equal. The mounting hole 52c of the side wall 46b faces the mounting hole 52a, and the mounting hole 52d of the side wall 46b faces the mounting hole 52b. Thereby, compared with the case where the mounting holes 52a and 52b and the mounting holes 52c and 52d are located in the longitudinal direction of the case 22, the cover portion 24 can be held with a good balance.

各側壁部４６ａ、４６ｂの外面には、装着孔５２ａ、５２ｂと装着孔５２ｃ、５２ｄ間に位置し、且つ、車体パネルＰに設けられた後述の固定部２００ａ、２００ｂに係合する固定爪５４ａ、５４ｂがそれぞれ形成されている（図９参照）。各固定爪５４ａ、５４ｂは、ケース２２の長手方向に沿って延在し、略直方体形状に構成された基部５５ａ、５５ｂと一体的に形成され、且つ、上端部から外方に向かって下傾するテーパ部５７ａ、５７ｂを含む。 Fixing claws 54a that are positioned between the mounting holes 52a and 52b and the mounting holes 52c and 52d and engage with fixing parts 200a and 200b (described later) provided on the vehicle body panel P, on the outer surfaces of the side wall portions 46a and 46b. , 54b are formed (see FIG. 9). Each of the fixing claws 54a and 54b extends along the longitudinal direction of the case 22, is formed integrally with a base portion 55a and 55b configured in a substantially rectangular parallelepiped shape, and is inclined downward from the upper end portion toward the outside. Taper portions 57a and 57b.

壁部４８及び壁部５０の高さは、ケース２２にカバー部２４を装着した状態で、ケース２２とカバー部２４とが面一になるような高さに設定されている（図１及び図８参照）。 The heights of the wall 48 and the wall 50 are set such that the case 22 and the cover 24 are flush with each other when the cover 24 is attached to the case 22 (FIGS. 1 and FIG. 1). 8).

壁部５０は、平面視で略Ｔ字状に形成されており、コネクタ部３８の内部迄到達する長さを有する。壁部５０の上面の略中央には、長手方向に沿って延びた一対の配置溝５６ａ、５６ｂが形成されている（図３参照）。配置溝５６ａ、５６ｂの溝幅は、それぞれ上述した接続端子２０ａ、２０ｂのリード部３４の幅と略同一の幅に設定されており、配置溝５６ａ、５６ｂの溝深さは、該リード部３４の厚みＴ１と略同一の深さに設定されている（図８参照）。 The wall portion 50 is formed in a substantially T shape in a plan view and has a length that reaches the inside of the connector portion 38. A pair of arrangement grooves 56a and 56b extending along the longitudinal direction is formed in the approximate center of the upper surface of the wall 50 (see FIG. 3). The groove widths of the placement grooves 56a and 56b are set to be substantially the same as the widths of the lead portions 34 of the connection terminals 20a and 20b, respectively. The groove depths of the placement grooves 56a and 56b are the lead portions 34, respectively. The thickness is set to be substantially the same as the thickness T1 (see FIG. 8).

図１から諒解されるように、コネクタ部３８は、四角筒状に形成されており、その内部には、それぞれの接続端子２０ａ、２０ｂのリード部３４が収納され、また、このコネクタ部３８の筒体内部には、図示しない電力供給用の外部コネクタが挿入可能である。本実施の形態では、コネクタ部３８の垂直方向の厚みはケース本体３６よりも大きく形成される。コネクタ部３８を構成する壁部５３には、長方形状の切欠部５８が形成され、前記切欠部５８の幅は、後述するカバー延在部６４の幅に対応している（図２参照）。 As can be seen from FIG. 1, the connector portion 38 is formed in a rectangular tube shape, and the lead portions 34 of the respective connection terminals 20 a and 20 b are accommodated therein, and the connector portion 38 has An external connector for power supply (not shown) can be inserted into the cylindrical body. In the present embodiment, the thickness of the connector portion 38 in the vertical direction is larger than that of the case body 36. A rectangular cutout portion 58 is formed in the wall portion 53 constituting the connector portion 38, and the width of the cutout portion 58 corresponds to the width of a cover extension portion 64 described later (see FIG. 2).

以上のように構成されたケース２２では、底部４０、第１段差部４２ａ、４２ｂ、第２段差部４４ａ、４４ｂ、側壁部４６ａ、４６ｂ、壁部４８、及び壁部５０で囲まれた空間とコネクタ部３８の切欠部５８とによって、カバー部２４が装着可能な空間（室）５９が形成されることとなる。 In the case 22 configured as described above, the space surrounded by the bottom portion 40, the first step portions 42a and 42b, the second step portions 44a and 44b, the side wall portions 46a and 46b, the wall portion 48, and the wall portion 50 and A space (chamber) 59 in which the cover portion 24 can be mounted is formed by the notch portion 58 of the connector portion 38.

図２及び図４に示すように、カバー部２４は、例えば、射出成形によって樹脂等で一体的に構成されており、平面視で略長方形状のカバー部本体６０と、前記カバー部本体６０の他端部から幅狭に延在するカバー延在部６４と、前記カバー部本体６０に形成されて導光体２５を内部に装着可能な筒部８０とを有する。 As shown in FIGS. 2 and 4, the cover portion 24 is integrally formed of resin or the like by, for example, injection molding, and the cover portion main body 60 having a substantially rectangular shape in plan view, and the cover portion main body 60. A cover extending portion 64 that extends narrowly from the other end portion, and a cylindrical portion 80 that is formed in the cover portion main body 60 and into which the light guide 25 can be mounted.

カバー部本体６０は、その外形形状を構成するベース部６１と、前記ベース部６１の短手方向両端部から長手方向に沿って下方に突出した一対の突出部６２ａ、６２ｂと、前記一対の突出部６２ａ、６２ｂに形成された一対の突起部６８ａ、６８ｂとを有する。 The cover part main body 60 includes a base part 61 constituting its outer shape, a pair of projecting parts 62a and 62b projecting downward along the longitudinal direction from both lateral ends of the base part 61, and the pair of projecting parts. It has a pair of protrusion parts 68a and 68b formed in the parts 62a and 62b.

前記突出部６２ａ、６２ｂの突出量は、上述した側壁部４６ａ、４６ｂの高さに対応して規定される。突起部６８ａ、６８ｂの長さは、突出部６２ａ、６２ｂの長さと同一に設定され、その突出量は、上述した第２垂直面４７ａ、４７ｂの幅Ｗ２と基板１４の厚さＴ２の差（Ｗ２−Ｔ２）と同程度に設定されている（図６参照）。 The amount of protrusion of the protrusions 62a and 62b is defined corresponding to the height of the side walls 46a and 46b described above. The lengths of the protrusions 68a and 68b are set to be the same as the lengths of the protrusions 62a and 62b, and the protrusion amount is the difference between the width W2 of the second vertical surfaces 47a and 47b and the thickness T2 of the substrate 14 ( It is set to the same level as W2-T2) (see FIG. 6).

各突出部６２ａ、６２ｂの外側面には、上述した装着孔５２ａ、５２ｂと装着孔５２ｃ、５２ｄに嵌合可能な装着爪７０ａ、７０ｂと装着爪７０ｃ、７０ｄがそれぞれ互いに離間して設けられ、その離間間隔は、上述した装着孔５２ａ、５２ｂと装着孔５２ｃ、５２ｄの離間間隔と同一に設定されている。装着爪７０ａ、７０ｂ、７０ｃ、７０ｄは、略直方体状であるが、その下端部は下方に向かうに従って徐々に先細りするテーパ状に形成されている。 Mounting claws 70a, 70b and mounting claws 70c, 70d that can be fitted into the mounting holes 52a, 52b and the mounting holes 52c, 52d described above are provided on the outer surfaces of the projecting portions 62a, 62b, respectively. The spacing interval is set to be the same as the spacing between the mounting holes 52a and 52b and the mounting holes 52c and 52d described above. The mounting claws 70a, 70b, 70c, and 70d have a substantially rectangular parallelepiped shape, but their lower end portions are formed in a tapered shape that gradually tapers downward.

この場合、本実施の形態では、図６に示すように、突起部６８ａ、６８ｂの下端面６９ａ、６９ｂから装着爪７０ａ、７０ｂと装着爪７０ｃ、７０ｄの上端面までの距離Ｌ１は、ケース本体３６の第１上面４５ａ、４５ｂに基板１４を載置した状態において、基板１４の実装面１６から装着孔５２ａ、５２ｂと装着孔５２ｃ、５２ｄの上端部までの距離Ｌ２よりも若干大きく設定されている。その理由については後述する。 In this case, in the present embodiment, as shown in FIG. 6, the distance L1 from the lower end surfaces 69a, 69b of the projections 68a, 68b to the upper end surfaces of the mounting claws 70a, 70b and the mounting claws 70c, 70d is In a state where the substrate 14 is placed on the first upper surfaces 45a and 45b of 36, the distance L2 from the mounting surface 16 of the substrate 14 to the mounting holes 52a and 52b and the upper ends of the mounting holes 52c and 52d is set to be slightly larger. Yes. The reason will be described later.

ベース部６１とカバー延在部６４の境界部には、下方に突出した端子保持部７２が形成されている（図４参照）。端子保持部７２の下端面７３と突起部６８ａ、６８ｂの下端面６９ａ、６９ｂとは、それぞれが一体に接続して平坦面を形成している。 A terminal holding portion 72 protruding downward is formed at the boundary portion between the base portion 61 and the cover extending portion 64 (see FIG. 4). The lower end surface 73 of the terminal holding portion 72 and the lower end surfaces 69a and 69b of the protrusions 68a and 68b are integrally connected to form a flat surface.

端子保持部７２の下端面７３には、一対の凹部７４ａ、７４ｂがカバー部本体６０の短手方向に所定間隔離間して形成され、その離間間隔は、上述した壁部５０に設けられた配置溝５６ａ、５６ｂの離間間隔に対応している。 A pair of recesses 74a and 74b are formed on the lower end surface 73 of the terminal holding portion 72 so as to be spaced apart by a predetermined distance in the short direction of the cover body 60, and the spacing is provided on the wall portion 50 described above. This corresponds to the spacing between the grooves 56a and 56b.

カバー延在部６４の下面のうち端子保持部７２に隣接する部位には、前記電力供給用の外部コネクタを保持するための溝７６が形成されている。 A groove 76 for holding the external connector for power supply is formed in a portion of the lower surface of the cover extending portion 64 adjacent to the terminal holding portion 72.

筒部８０は、略円筒状であってベース部６１の一端部側に位置しており、筒部８０の内部（内孔）は、ベース部６１の下端面に開口している。筒部８０には、その周方向に沿って４つの肉厚部位８２ａ、８２ｂ、８２ｃ、８２ｄが互いに離間して形成されている。なお、各肉厚部位８２ａ、８２ｂ、８２ｃ、８２ｄは、筒部８０の軸線方向全体に亘って延在しており、その筒部８０の周方向に沿った長さは略同一に設定されている。 The cylindrical portion 80 is substantially cylindrical and is located on one end side of the base portion 61, and the inside (inner hole) of the cylindrical portion 80 is open to the lower end surface of the base portion 61. Four thick portions 82a, 82b, 82c, and 82d are formed in the tubular portion 80 so as to be separated from each other along the circumferential direction thereof. Each thick portion 82a, 82b, 82c, 82d extends over the entire axial direction of the cylindrical portion 80, and the length along the circumferential direction of the cylindrical portion 80 is set to be substantially the same. Yes.

肉厚部位８２ａと肉厚部位８２ｃは、ベース部６１の長手方向に沿って並んでおり、肉厚部位８２ｂと肉厚部位８２ｄは、ベース部６１の短手方向に沿って並んでいる。 The thick part 82 a and the thick part 82 c are arranged along the longitudinal direction of the base part 61, and the thick part 82 b and the thick part 82 d are arranged along the short direction of the base part 61.

図６に示すように、肉厚部位８２ｂの内周面の下端部には第１ストッパ部８６ａが形成され、肉厚部位８２ｄの内周面の下端部には前記第１ストッパ部８６ａに対向して第１ストッパ部８６ｂが形成されている。また、肉厚部位８２ｂの内周面の上端側には、筒部８０の軸線方向に延在して該筒部８０の上端面に開口した係止溝８８が形成されている。なお、係止溝８８は、筒部８０の上端面に開口していなくてもよい。つまり、係止溝８８の上端部は、筒部８０の上端面よりもやや下方に位置していても構わない。各第１ストッパ部８６ａ、８６ｂは、略直方体状に形成され、その上端面は平坦に形成されている。 As shown in FIG. 6, a first stopper portion 86a is formed at the lower end portion of the inner peripheral surface of the thick portion 82b, and is opposed to the first stopper portion 86a at the lower end portion of the inner peripheral surface of the thick portion 82d. Thus, a first stopper portion 86b is formed. A locking groove 88 extending in the axial direction of the cylindrical portion 80 and opening at the upper end surface of the cylindrical portion 80 is formed on the upper end side of the inner peripheral surface of the thick portion 82b. Note that the locking groove 88 does not have to be opened in the upper end surface of the cylindrical portion 80. That is, the upper end portion of the locking groove 88 may be located slightly below the upper end surface of the cylindrical portion 80. Each 1st stopper part 86a, 86b is formed in a substantially rectangular parallelepiped shape, and the upper end surface is formed flat.

図５に示すように、肉厚部位８２ａの内周面には、筒部８０の軸線方向に沿って延びた溝部９０ａが形成され、その溝部９０ａは、筒部８０の上端よりもやや下方の位置からその下端まで延在している。これにより、肉厚部位８２ａの内周面の上端部に後述する導光体２５の凸部９６ａが当接（係止）可能な第２ストッパ部９２ａが形成されることとなる。 As shown in FIG. 5, a groove portion 90 a extending along the axial direction of the cylindrical portion 80 is formed on the inner peripheral surface of the thick portion 82 a, and the groove portion 90 a is slightly below the upper end of the cylindrical portion 80. It extends from the position to its lower end. Thereby, the 2nd stopper part 92a in which the convex part 96a of the light guide 25 mentioned later can contact | abut (latching) is formed in the upper end part of the internal peripheral surface of the thick part 82a.

肉厚部位８２ｃの内周面には、前記溝部９０ａと同一形状の溝部９０ｂが該溝部９０ａに対向して形成されている。これにより、肉厚部位８２ｃの内周面の上端部に後述する導光体２５の凸部９６ｂが当接（係止）可能な第２ストッパ部９２ｂが形成されることとなる。なお、第２ストッパ部９２ａ、９２ｂのそれぞれは、上端に向かうに従って先細りのテーパ状に形成され、その下端面は平坦に形成されている。 A groove portion 90b having the same shape as the groove portion 90a is formed on the inner peripheral surface of the thick portion 82c so as to face the groove portion 90a. Thereby, the 2nd stopper part 92b which can contact | abut (lock) the convex part 96b of the light guide 25 mentioned later at the upper end part of the internal peripheral surface of the thick part 82c will be formed. Each of the second stopper portions 92a and 92b is formed in a tapered shape that tapers toward the upper end, and its lower end surface is formed flat.

導光体２５は、透明体であって、樹脂材料で一体的に構成されている。また、図２、図５、及び、図６に示すように、導光体２５は、円柱状に形成された導光体本体９４と、前記導光体本体９４の外周面に形成されて上述した一対の溝部９０ａ、９０ｂのそれぞれに挿入可能な一対の凸部９６ａ、９６ｂと、前記導光体本体９４の外周面に形成されて該導光体本体９４の軸線方向に延びた略直方体状の係止用突起９８とを有する。 The light guide 25 is a transparent body and is integrally formed of a resin material. 2, 5, and 6, the light guide 25 is formed on the light guide body 94 formed in a columnar shape and the outer peripheral surface of the light guide body 94. A pair of convex portions 96a and 96b that can be inserted into the pair of grooves 90a and 90b, respectively, and a substantially rectangular parallelepiped shape formed on the outer peripheral surface of the light guide body 94 and extending in the axial direction of the light guide body 94. And a locking projection 98.

導光体本体９４の外径は、筒部８０の内径に対応している。各凸部９６ａ、９６ｂは、略直方体状であるが、その下端部は下方に向かうに従って徐々に先細りするテーパ状に形成され、その上端面は平坦に形成されている。また、各凸部９６ａ、９６ｂは、溝部９０ａ、９０ｂに挿入可能な大きさに設定される。 The outer diameter of the light guide body 94 corresponds to the inner diameter of the cylindrical portion 80. Each of the convex portions 96a and 96b has a substantially rectangular parallelepiped shape, but its lower end portion is formed in a taper shape that gradually tapers downward, and its upper end surface is formed flat. Moreover, each convex part 96a, 96b is set to the magnitude | size which can be inserted in groove part 90a, 90b.

なお、導光体本体９４の下端面から凸部９６ａ、９６ｂの上端面までの距離Ｌ３は、第１ストッパ部８６ａ、８６ｂの上端面から第２ストッパ部９２ａ、９２ｂの下端面までの距離Ｌ４と略同一の長さに設定されている。この理由は後述する。 The distance L3 from the lower end surface of the light guide body 94 to the upper end surfaces of the convex portions 96a and 96b is the distance L4 from the upper end surface of the first stopper portions 86a and 86b to the lower end surfaces of the second stopper portions 92a and 92b. Are set to approximately the same length. The reason for this will be described later.

係止用突起９８の幅（導光体本体９４の軸線方向及び半径方向に直交する方向に沿った長さ）は、上述した係止溝８８の溝幅と略同一に設定されている。これにより、係止用突起９８を係止溝８８に挿入した状態で、前記係止用突起９８が前記係止溝８８の一対の溝側面のそれぞれに接触するので、筒部８０の周方向において導光体２５を筒部８０に確実に位置決めすることができる。よって、筒部８０に対する導光体２５の誤組を防止することができる。また、導光体２５を筒部８０の内部に装着した状態で、該導光体２５が筒部８０の周方向に回転することを好適に防止することができる。 The width of the locking protrusion 98 (the length along the direction of the light guide body 94 in the direction orthogonal to the axial direction and the radial direction) is set to be approximately the same as the groove width of the locking groove 88 described above. Thereby, in a state where the locking protrusion 98 is inserted into the locking groove 88, the locking protrusion 98 comes into contact with each of the pair of groove side surfaces of the locking groove 88. The light guide 25 can be reliably positioned on the cylindrical portion 80. Therefore, misassembly of the light guide 25 with respect to the cylindrical portion 80 can be prevented. In addition, it is possible to suitably prevent the light guide 25 from rotating in the circumferential direction of the cylindrical portion 80 in a state where the light guide 25 is mounted inside the cylindrical portion 80.

次に、本実施形態に係る発光装置１０を組み立てる手順について説明する。先ず、基板１４の一方の面（実装面１６）に発光素子１２と電子部品１８をそれぞれ実装すると共に、基板１４の貫通孔２６ａ、２６ｂに接続端子２０ａ、２０ｂのそれぞれの溶着部３０を挿入し、該溶着部３０を半田付けにより基板１４に固定する。 Next, a procedure for assembling the light emitting device 10 according to this embodiment will be described. First, the light emitting element 12 and the electronic component 18 are mounted on one surface (mounting surface 16) of the substrate 14, and the welding portions 30 of the connection terminals 20a and 20b are inserted into the through holes 26a and 26b of the substrate 14, respectively. The welded portion 30 is fixed to the substrate 14 by soldering.

その後、前記発光素子１２等が実装された基板１４をケース２２内に進入させる。このとき、図６に示すように、基板１４の裏面２８が第１上面４５ａ、４５ｂに接触すると共に、基板１４の側面が第２垂直面４７ａ、４７ｂに接触し、壁部５０の配置溝５６ａ、５６ｂ内に接続端子２０ａ、２０ｂのそれぞれのリード部３４が収納されることとなる。これにより、基板１４と接続端子２０ａ、２０ｂがケース２２内に位置決めされる。 Thereafter, the substrate 14 on which the light emitting element 12 and the like are mounted is made to enter the case 22. At this time, as shown in FIG. 6, the back surface 28 of the substrate 14 contacts the first upper surfaces 45a and 45b, and the side surface of the substrate 14 contacts the second vertical surfaces 47a and 47b. 56b, the respective lead portions 34 of the connection terminals 20a and 20b are accommodated. As a result, the substrate 14 and the connection terminals 20a and 20b are positioned in the case 22.

また、導光体２５を筒部８０の内部に装着する。具体的には、図５に示すように、係止用突起９８が係止溝８８に挿入されるようにカバー部２４に対する導光体２５の向きを調節した上で、該導光体２５を筒部８０の内部に進入させる。そうすると、導光体本体９４の外周面と筒部８０の内周面とが接触した状態で、凸部９６ａ、９６ｂのテーパ面が第２ストッパ部９２ａ、９２ｂのテーパ面に接触するに至る。 In addition, the light guide 25 is mounted inside the cylindrical portion 80. Specifically, as shown in FIG. 5, the light guide 25 is adjusted after the orientation of the light guide 25 with respect to the cover portion 24 is adjusted so that the locking protrusions 98 are inserted into the locking grooves 88. It enters into the inside of the cylinder part 80. If it does so, the taper surface of convex part 96a, 96b will come in contact with the taper surface of 2nd stopper part 92a, 92b in the state which the outer peripheral surface of the light guide main body 94 and the inner peripheral surface of the cylinder part 80 contacted.

続いて、導光体２５をベース部６１が位置する側に押圧すると、肉厚部位８２ａ、８２ｃが互いに離間する方向（筒部８０の半径方向外方）に弾性変形しながら導光体２５が筒部８０の内部にさらに進入し、導光体本体９４の下端面が第１ストッパ部８６ａ、８６ｂの上端面に当接することとなる。このとき、弾性変形していた肉厚部位８２ａ、８２ｃは原形に復帰し、係止用突起９８は係止溝８８に配置され、凸部９６ａ、９６ｂは溝部９０ａ、９０ｂに配置される。 Subsequently, when the light guide body 25 is pressed to the side where the base portion 61 is located, the light guide body 25 is elastically deformed in a direction in which the thick portions 82a and 82c are separated from each other (outward in the radial direction of the tube portion 80). It further enters the inside of the cylindrical portion 80, and the lower end surface of the light guide body 94 comes into contact with the upper end surfaces of the first stopper portions 86a and 86b. At this time, the thick portions 82a and 82c that have been elastically deformed return to the original shape, the locking projection 98 is disposed in the locking groove 88, and the convex portions 96a and 96b are disposed in the groove portions 90a and 90b.

なお、上述したように、導光体本体９４の下端面から凸部９６ａ、９６ｂの上端面までの距離Ｌ３が第１ストッパ部８６ａ、８６ｂの上端面から第２ストッパ部９２ａ、９２ｂの下端面までの距離Ｌ４と略同一に設定されているので、この状態において、凸部９６ａの上端面が第２ストッパ部９２ａの下端面に当接すると共に凸部９６ｂの上端面が第２ストッパ部９２ｂの下端面に当接する。その結果、導光体２５は、筒部８０の内部に位置決め保持される（図６参照）。なお、このとき、導光体本体９４の一部は、筒部８０から突出している。 As described above, the distance L3 from the lower end surface of the light guide body 94 to the upper end surfaces of the convex portions 96a and 96b is the upper end surface of the first stopper portions 86a and 86b and the lower end surfaces of the second stopper portions 92a and 92b. In this state, the upper end surface of the convex portion 96a abuts on the lower end surface of the second stopper portion 92a, and the upper end surface of the convex portion 96b is the second stopper portion 92b. Abuts the lower end surface. As a result, the light guide 25 is positioned and held inside the cylindrical portion 80 (see FIG. 6). At this time, a part of the light guide body 94 protrudes from the cylindrical portion 80.

続いて、カバー部２４をケース２２に装着する。具体的には、カバー部２４をケース２２に近接すると、カバー部２４の突出部６２ａ、６２ｂの外側面とケース本体３６の側壁部４６ａ、４６ｂの内面とが互いに接触した状態で突出部６２ａ、６２ｂの下端がケース本体３６内に進入し、このため装着爪７０ａ、７０ｂと、装着爪７０ｃ、７０ｄが側壁部４６ａ、４６ｂに接触するに至る。 Subsequently, the cover portion 24 is attached to the case 22. Specifically, when the cover part 24 is brought close to the case 22, the protruding part 62a, the outer surface of the protruding parts 62a, 62b of the cover part 24 and the inner surface of the side wall parts 46a, 46b of the case body 36 are in contact with each other. The lower end of 62b enters the case body 36, so that the mounting claws 70a and 70b and the mounting claws 70c and 70d come into contact with the side wall portions 46a and 46b.

そして、カバー部２４をケース本体３６の底部４０側に押圧すると、側壁部４６ａ、４６ｂが互いに離間する方向に弾性変形すると共に、その反力で突出部６２ａ、６２ｂが互いに近接する方向に弾性変形しながら、突出部６２ａ、６２ｂがケース本体３６内にさらに進入する。 When the cover portion 24 is pressed toward the bottom 40 side of the case body 36, the side wall portions 46a and 46b are elastically deformed in a direction away from each other, and the protrusions 62a and 62b are elastically deformed in a direction close to each other by the reaction force. However, the protrusions 62 a and 62 b further enter the case body 36.

その後、突起部６８ａ、６８ｂの下端面６９ａ、６９ｂが基板１４の実装面１６に接触すると共に、突出部６２ａ、６２ｂの下端面が第２上面４９ａ、４９ｂに接触することとなる。なお、上述したように、下端面６９ａ、６９ｂから装着爪７０ａ、７０ｂと装着爪７０ｃ、７０ｄの上端面までの距離Ｌ１が実装面１６から装着孔５２ａ、５２ｂ、と装着孔５２ｃ、５２ｄの上端部までの距離Ｌ２よりも大きく設定されているため、この状態において、装着爪７０ａ、７０ｂ、７０ｃ、７０ｄは未だ装着孔５２ａ、５２ｂ、５２ｃ、５２ｄに嵌合していない。 Thereafter, the lower end surfaces 69a and 69b of the protrusions 68a and 68b are in contact with the mounting surface 16 of the substrate 14, and the lower end surfaces of the protrusions 62a and 62b are in contact with the second upper surfaces 49a and 49b. As described above, the distance L1 from the lower end surfaces 69a and 69b to the upper end surfaces of the mounting claws 70a and 70b and the mounting claws 70c and 70d is the upper end of the mounting holes 52a and 52b and the mounting holes 52c and 52d. In this state, the mounting claws 70a, 70b, 70c, and 70d are not yet fitted in the mounting holes 52a, 52b, 52c, and 52d.

次いで、カバー部２４を底部４０側にさらに押し込むと、ケース本体３６及びカバー部２４が若干撓むので、カバー部２４がケース本体３６内にさらに進入し、装着爪７０ａ、７０ｂ、７０ｃ、７０ｄが装着孔５２ａ、５２ｂ、５２ｃ、５２ｄに嵌合することとなる（図６参照）。このとき、弾性変形していた突出部６２ａ、６２ｂ及び側壁部４６ａ、４６ｂは原形に復帰する。その結果、カバー部２４は、突起部６８ａ、６８ｂの下端面６９ａ、６９ｂで基板１４の実装面１６を押圧した（実装面１６に当接した）状態でケース２２に装着される。このとき、端子保持部７２の下端面７３は、接続端子２０ａ、２０ｂのそれぞれのリード部３４に当接することとなる（図８参照）。 Next, when the cover part 24 is further pushed into the bottom 40 side, the case main body 36 and the cover part 24 are slightly bent, so that the cover part 24 further enters the case main body 36, and the mounting claws 70a, 70b, 70c, 70d The fitting holes 52a, 52b, 52c, and 52d are fitted (see FIG. 6). At this time, the projecting portions 62a and 62b and the side wall portions 46a and 46b that have been elastically deformed return to the original shape. As a result, the cover portion 24 is mounted on the case 22 in a state where the mounting surface 16 of the substrate 14 is pressed (abutted against the mounting surface 16) by the lower end surfaces 69a and 69b of the protrusions 68a and 68b. At this time, the lower end surface 73 of the terminal holding portion 72 comes into contact with the respective lead portions 34 of the connection terminals 20a and 20b (see FIG. 8).

以上のようにして組み立てられた発光装置１０は、図９に示すように、図示しない車両の車体パネルＰの所定の位置に配設される。具体的には、筒部８０における基板１４が位置する側とは反対側の開口部が鉛直下方に指向すると共に、車体パネルＰに形成された窓部Ｈと導光体本体９４とが対向するように車体パネルＰの裏面側（図９の二点鎖線の位置）に発光装置１０をセットし、該発光装置１０を車体パネルＰに接近させる。これにより、先ず、車体パネルＰの裏面側に設けられた樹脂製の固定部２００ａ、２００ｂが発光装置１０の固定爪５４ａ、５４ｂのテーパ部５７ａ、５７ｂに接触する。 As shown in FIG. 9, the light emitting device 10 assembled as described above is disposed at a predetermined position of a vehicle body panel P of a vehicle (not shown). Specifically, the opening on the side opposite to the side where the substrate 14 is located in the cylindrical portion 80 is directed vertically downward, and the window portion H formed in the vehicle body panel P and the light guide body 94 face each other. As described above, the light emitting device 10 is set on the back side of the vehicle body panel P (the position of the two-dot chain line in FIG. 9), and the light emitting device 10 is brought close to the vehicle body panel P. Thereby, first, the resin fixing portions 200a and 200b provided on the back surface side of the vehicle body panel P come into contact with the tapered portions 57a and 57b of the fixing claws 54a and 54b of the light emitting device 10.

次いで、発光装置１０をさらに車体パネルＰ側に押圧すると、固定部２００ａ、２００ｂが互いに離間する方向に弾性変形しながら、発光装置１０が車体パネルＰ側に進行し、筒部８０が車体パネルＰの裏面に当接すると共に導光体本体９４の一部が窓部Ｈに嵌まり込むと共に車両室内に露出する。このとき、弾性変形していた固定部２００ａ、２００ｂは原形に復帰する。その結果、発光装置１０は、車体パネルＰと固定部２００ａ、２００ｂによって挟圧されるので、車体パネルＰに対してしっかりと固定される。 Next, when the light-emitting device 10 is further pressed toward the vehicle body panel P, the light-emitting device 10 advances toward the vehicle body panel P while the fixing portions 200a and 200b are elastically deformed in a direction away from each other, and the cylindrical portion 80 is moved toward the vehicle body panel P. A portion of the light guide body 94 is fitted into the window H and exposed to the vehicle compartment. At this time, the fixing portions 200a and 200b that have been elastically deformed return to the original shape. As a result, the light emitting device 10 is clamped by the vehicle body panel P and the fixing portions 200a and 200b, and is thus firmly fixed to the vehicle body panel P.

本実施の形態に係る発光装置１０によれば、ケース本体３６の第１上面４５ａ、４５ｂに基板１４の裏面２８を当接させた状態でカバー部２４の突起部６８ａ、６８ｂの下端面６９ａ、６９ｂを基板１４の実装面１６に押し付けて（圧接させて）いるので、ケース２２に対して基板１４を確実に保持することができる。これにより、発光素子１２と筒部８０の間隔を一定にすることができる。 According to the light emitting device 10 according to the present embodiment, the lower end surfaces 69a of the protrusions 68a and 68b of the cover portion 24 with the back surface 28 of the substrate 14 in contact with the first upper surfaces 45a and 45b of the case body 36, Since 69b is pressed (pressed) against the mounting surface 16 of the substrate 14, the substrate 14 can be securely held against the case 22. Thereby, the space | interval of the light emitting element 12 and the cylinder part 80 can be made constant.

また、導光体２５を筒部８０の内部に装着した状態で導光体本体９４の下端面が第１ストッパ部８６ａ、８６ｂの上端面に当接しているので、導光体２５の基板１４に向かう側の移動が阻止される。これにより、導光体２５が筒部８０の内部に位置決めされる。 In addition, since the lower end surface of the light guide body 94 is in contact with the upper end surfaces of the first stopper portions 86a and 86b in a state where the light guide 25 is mounted inside the cylindrical portion 80, the substrate 14 of the light guide 25 is provided. The movement toward the side is blocked. Thereby, the light guide 25 is positioned inside the cylindrical portion 80.

さらに、この状態で、凸部９６ａ、９６ｂの上端面が第２ストッパ部９２ａ、９２ｂの下端面に当接しているので、導光体２５における基板１４が位置する側とは反対側の移動が阻止される。これにより、例えば、筒部８０における基板１４が位置する側とは反対側の開口部が鉛直下方に指向するように発光装置１０の向きを設定した場合であっても、筒部８０に対する導光体２５の位置がずれることはない。これにより、発光装置１０の向きによらず、発光素子１２と導光体２５の距離を一定に保持することができる。 Furthermore, in this state, since the upper end surfaces of the convex portions 96a and 96b are in contact with the lower end surfaces of the second stopper portions 92a and 92b, the light guide 25 moves on the side opposite to the side where the substrate 14 is located. Be blocked. Thereby, for example, even when the direction of the light emitting device 10 is set so that the opening on the side opposite to the side on which the substrate 14 is located in the cylindrical portion 80 is directed vertically downward, the light guide to the cylindrical portion 80 is performed. The position of the body 25 does not shift. Thereby, the distance between the light emitting element 12 and the light guide 25 can be kept constant regardless of the direction of the light emitting device 10.

本実施の形態では、第１ストッパ部８６ａ、８６ｂと第２ストッパ部９２ａ、９２ｂを利用して導光体２５を筒部８０の内部に位置決め保持しているので、筒部８０の壁部に前記導光体２５を保持するための孔を形成する必要がない。そのため、発光素子１２から発光された光が該孔を介して外部に漏れるような問題も起きない。よって、部品点数の増加を招くことなく発光装置１０の品質を向上させることができる。 In the present embodiment, the light guide 25 is positioned and held inside the cylindrical portion 80 using the first stopper portions 86a and 86b and the second stopper portions 92a and 92b. There is no need to form a hole for holding the light guide 25. Therefore, there is no problem that light emitted from the light emitting element 12 leaks to the outside through the hole. Therefore, the quality of the light emitting device 10 can be improved without increasing the number of parts.

本実施の形態では、第２ストッパ部９２ａ、９２ｂに当接可能な凸部９６ａ、９６ｂを導光体本体９４の外面に一体的に形成しているので、導光体２５を筒部８０の内部に挿入する際に、前記凸部９６ａ、９６ｂを前記第２ストッパ部９２ａ、９２ｂに押し当てて肉厚部位８２ａ、８２ｃを筒部８０の半径方向外方に撓ませることができる。これにより、前記導光体２５を前記筒部８０の内部に一層容易に挿入することができる。 In the present embodiment, since the convex portions 96a and 96b that can come into contact with the second stopper portions 92a and 92b are integrally formed on the outer surface of the light guide body 94, the light guide 25 is attached to the cylindrical portion 80. When inserting into the inside, the convex portions 96 a and 96 b can be pressed against the second stopper portions 92 a and 92 b to bend the thick portions 82 a and 82 c outward in the radial direction of the cylindrical portion 80. Thereby, the light guide 25 can be more easily inserted into the cylindrical portion 80.

また、導光体２５の凸部９６ａ、９６ｂのテーパ面を第２ストッパ部９２ａ、９２ｂのテーパ面に接触させた状態で導光体２５をベース部６１側に押圧しているので、肉厚部位８２ａ、８２ｃを筒部８０の半径方向外方に容易に撓ませることができる。従って、導光体２５を筒部８０の内部にさらに容易に挿入することができる。 Further, the light guide 25 is pressed toward the base portion 61 in a state where the tapered surfaces of the convex portions 96a and 96b of the light guide 25 are in contact with the tapered surfaces of the second stopper portions 92a and 92b. The portions 82 a and 82 c can be easily bent outward in the radial direction of the cylindrical portion 80. Therefore, the light guide 25 can be inserted into the cylindrical portion 80 more easily.

さらに、一対の第１ストッパ部８６ａ、８６ｂをベース部６１の短手方向に対向して配置すると共に、一対の第２ストッパ部９２ａ、９２ｂをベース部６１の長手方向に対向して配置しているので、例えば、第１ストッパ部８６ａ及び第２ストッパ部９２ａを１つずつ設けた場合（第１ストッパ部８６ｂ及び第２ストッパ部９２ｂを省略した場合）と比較して導光体２５を筒部８０にバランス良く位置決め保持することができる。また、カバー部２４を射出成形により成形する場合に、筒部８０の内部に配置される中子を適当な大きさに分割することで、該中子を該筒部８０の内部から容易に取り出すことができる。 Further, the pair of first stopper portions 86 a and 86 b are disposed to face the short direction of the base portion 61, and the pair of second stopper portions 92 a and 92 b are disposed to face the longitudinal direction of the base portion 61. Therefore, for example, the light guide 25 is formed in a cylinder as compared with a case where the first stopper portion 86a and the second stopper portion 92a are provided one by one (when the first stopper portion 86b and the second stopper portion 92b are omitted). Positioning and holding can be performed on the portion 80 with good balance. Further, when the cover portion 24 is formed by injection molding, the core disposed inside the cylindrical portion 80 is divided into an appropriate size so that the core can be easily taken out from the inside of the cylindrical portion 80. be able to.

本実施の形態に係る発光装置１０によれば、カバー部２４の一対の突出部６２ａ、６２ｂが発光素子１２を挟むようにして基板１４の実装面１６を押圧すると共に、前記突出部６２ａ、６２ｂのそれぞれに設けられた装着爪７０ａ、７０ｂと装着爪７０ｃ、７０ｄが、側壁部４６ａ、４６ｂのそれぞれに形成された装着孔５２ａ、５２ｂと装着孔５２ｃ、５２ｄに嵌合するので、発光素子１２と筒部８０の間隔を一定に保持することができる。 According to the light emitting device 10 according to the present embodiment, the pair of projecting portions 62a and 62b of the cover portion 24 press the mounting surface 16 of the substrate 14 with the light emitting element 12 interposed therebetween, and each of the projecting portions 62a and 62b. Since the mounting claws 70a and 70b and the mounting claws 70c and 70d provided on the side fit into the mounting holes 52a and 52b and the mounting holes 52c and 52d formed in the side wall portions 46a and 46b, respectively. The interval between the parts 80 can be kept constant.

また、本実施の形態では、カバー部２４をケース２２に装着した状態で、カバー部２４の突起部６８ａ、６８ｂの外側面がケース本体３６の第２垂直面４７ａ、４７ｂに接触しているので、カバー部２４と基板１４がその短手方向に相対移動することを好適に抑えることができる。これにより、発光素子１２の光軸を筒部８０の軸線上に位置させることができる。 In the present embodiment, the outer surfaces of the protrusions 68a and 68b of the cover part 24 are in contact with the second vertical surfaces 47a and 47b of the case body 36 with the cover part 24 attached to the case 22. The relative movement of the cover portion 24 and the substrate 14 in the short direction can be suitably suppressed. Thereby, the optical axis of the light emitting element 12 can be positioned on the axis of the cylindrical portion 80.

さらにまた、本実施の形態では、端子保持部７２の下端面７３が配置溝５６ａ、５６ｂに収納された接続端子２０ａ、２０ｂのそれぞれのリード部３４に当接しているので、接続端子２０ａ、２０ｂをケース２２に対して好適に保持することができる。 Furthermore, in the present embodiment, since the lower end surface 73 of the terminal holding portion 72 is in contact with the respective lead portions 34 of the connection terminals 20a and 20b accommodated in the arrangement grooves 56a and 56b, the connection terminals 20a and 20b. Can be suitably held with respect to the case 22.

これにより、接続端子２０ａ、２０ｂを保持するための部品を設ける必要がないので、発光装置１０全体を有効に小型化及び軽量化することができる。また、接続端子２０ａ、２０ｂのそれぞれは、溶着部３０を介して基板１４に固定されているので、該接続端子２０ａ、２０ｂを保持することにより、基板１４の保持が一層安定する。 Thereby, since it is not necessary to provide components for holding the connection terminals 20a and 20b, the entire light emitting device 10 can be effectively reduced in size and weight. Further, since each of the connection terminals 20a and 20b is fixed to the substrate 14 via the welded portion 30, the holding of the substrate 14 is further stabilized by holding the connection terminals 20a and 20b.

ところで、通常、ケース２２には寸法公差がある。そのため、発光素子１２や接続端子２０ａ、２０ｂ等が実装された基板１４をケース２２内に位置決めした際に、例えば、接続端子２０ａ、２０ｂの各リード部３４が配置溝５６ａ、５６ｂから若干浮き出ることがある。 By the way, the case 22 usually has a dimensional tolerance. Therefore, when the substrate 14 on which the light emitting element 12 and the connection terminals 20a and 20b are mounted is positioned in the case 22, for example, the lead portions 34 of the connection terminals 20a and 20b slightly protrude from the arrangement grooves 56a and 56b. There is.

このような場合であっても、本実施の形態に係る発光装置１０によれば、接続端子２０ａ、２０ｂのそれぞれに湾曲部３２を設けているので、カバー部２４をケース２２に装着した際に、湾曲部３２を撓ませることにより、溶着部３０に余計な応力をかけることなく、接続端子２０ａ、２０ｂを保持することが可能となる。これにより、溶着部３０の接続不良を好適に抑えることができる。 Even in such a case, according to the light emitting device 10 according to the present embodiment, the curved portion 32 is provided in each of the connection terminals 20a and 20b, so that when the cover portion 24 is attached to the case 22, By bending the bending portion 32, it is possible to hold the connection terminals 20a and 20b without applying excessive stress to the welded portion 30. Thereby, the connection failure of the welding part 30 can be suppressed suitably.

また、端子保持部７２の下端面７３に一対の凹部７４ａ、７４ｂを形成しているので、接続端子２０ａ、２０ｂの湾曲部３２がカバー部２４に当たり、該カバー部２４をケース２２に装着し難くなることを防止することができる。さらに、端子保持部７２の下端面７３に一対の凹部７４ａ、７４ｂを形成せずに、前記湾曲部３２と該下端面７３の間に該湾曲部３２が該下端面７３に当たらないように空間を設ける場合と比較して、発光装置１０全体をコンパクトにすることができる。 Further, since the pair of recesses 74 a and 74 b are formed in the lower end surface 73 of the terminal holding portion 72, the curved portion 32 of the connection terminals 20 a and 20 b hits the cover portion 24, and it is difficult to attach the cover portion 24 to the case 22. Can be prevented. Further, a pair of recesses 74 a and 74 b are not formed on the lower end surface 73 of the terminal holding portion 72, and a space is provided between the curved portion 32 and the lower end surface 73 so that the curved portion 32 does not hit the lower end surface 73. Compared with the case where the light emitting device is provided, the entire light emitting device 10 can be made compact.

さらに、本実施の形態では、発光素子１２が実装される基板１４の実装面１６に電子部品１８を配設しているので、電子部品１８を基板１４の裏面２８に実装する場合と比較して、発光装置１０全体を好適に小型化及び軽量化することができる。 Further, in the present embodiment, since the electronic component 18 is disposed on the mounting surface 16 of the substrate 14 on which the light emitting element 12 is mounted, compared with the case where the electronic component 18 is mounted on the back surface 28 of the substrate 14. The entire light emitting device 10 can be suitably reduced in size and weight.

本実施の形態に係る発光装置１０において、カバー部２４及び導光体２５に代え、図１０及び図１１に示すようなカバー部１００及び導光体１０２を用いてもよい。この変形例において、上記実施形態の構成要素と同一の構成要素には同一の参照符号を付し、詳細な説明を省略する。 In the light emitting device 10 according to the present embodiment, instead of the cover 24 and the light guide 25, a cover 100 and a light guide 102 as shown in FIGS. 10 and 11 may be used. In this modification, the same components as those of the above embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

図１０及び図１１に示すように、カバー部１００は、筒部１０４の構成が上述した筒部８０と異なる。具体的には、上述した肉厚部位８２ａの溝部９０ａを省略して肉厚部位８２ａの内周面の上端に第２ストッパ部１０６ａを突設すると共に、肉厚部位８２ｃの溝部９０ｂを省略して肉厚部位８２ｃの内周面の上端に第２ストッパ部１０６ｂを突設している。なお、各第２ストッパ部１０６ａ、１０６ｂは、上端に向かうに従って徐々に先細りするテーパ状に形成されている。 As shown in FIGS. 10 and 11, the cover 100 is different from the cylinder 80 described above in the configuration of the cylinder 104. Specifically, the above-described groove portion 90a of the thick portion 82a is omitted, the second stopper portion 106a is projected from the upper end of the inner peripheral surface of the thick portion 82a, and the groove portion 90b of the thick portion 82c is omitted. The second stopper portion 106b is projected from the upper end of the inner peripheral surface of the thick portion 82c. Each of the second stopper portions 106a and 106b is formed in a tapered shape that gradually tapers toward the upper end.

筒部１０４では、上述した実施の形態と同様に、肉厚部位８２ｂの内周面の下端部に第１ストッパ部８６ａが形成され、肉厚部位８２ｄの内周面の下端部に第１ストッパ部８６ｂが形成されている。また、導光体１０２では、上述した導光体２５の凸部９６ａ、９６ｂが省略されている。 In the cylindrical portion 104, as in the above-described embodiment, the first stopper portion 86a is formed at the lower end portion of the inner peripheral surface of the thick portion 82b, and the first stopper is formed at the lower end portion of the inner peripheral surface of the thick portion 82d. A portion 86b is formed. Further, in the light guide 102, the above-described convex portions 96a and 96b of the light guide 25 are omitted.

この場合、導光体１０２を筒部１０４の内部に装着した状態で、導光体本体９４の下端面が第１ストッパ部８６ａ、８６ｂの上端面に当接すると共に導光体本体９４の上端面が第２ストッパ部１０６ａ、１０６ｂの下端面に当接することにより、導光体１０２が筒部１０４の内部に位置決め保持することができる。また、本変形例によれば、導光体本体９４の外周面に上述した凸部９６ａ、９６ｂを設ける必要がないので、導光体１０２を簡易な構成にすることができる。その結果、発光装置１０の製造コストの低減を図ることができる。 In this case, the lower end surface of the light guide body 94 abuts on the upper end surfaces of the first stopper portions 86a and 86b and the upper end surface of the light guide body main body 94 with the light guide body 102 mounted in the cylindrical portion 104. Is in contact with the lower end surfaces of the second stopper portions 106 a and 106 b, so that the light guide 102 can be positioned and held inside the cylindrical portion 104. Moreover, according to this modification, since it is not necessary to provide the above-mentioned convex part 96a, 96b in the outer peripheral surface of the light guide main body 94, the light guide 102 can be made a simple structure. As a result, the manufacturing cost of the light emitting device 10 can be reduced.

本実施の形態は、上述した構成に限らず、例えば、発光装置１０は、複数の発光素子１２を基板１４に実装して構成されていても構わない。 The present embodiment is not limited to the configuration described above. For example, the light emitting device 10 may be configured by mounting a plurality of light emitting elements 12 on the substrate 14.

本実施の形態に係る発光装置１０は、突起部６８ａ、６８ｂの下端面６９ａ、６９ｂから装着爪７０ａ、７０ｂ、７０ｃ、７０ｄの上端面までの距離Ｌ１を、基板１４の実装面１６から装着孔５２ａ、５２ｂ、５２ｃ、５２ｄの上端部までの距離Ｌ２と同一に設定してもよい。この場合、基板１４は、突起部６８ａ、６８ｂによって殆ど押圧されないが、突起部６８ａ、６８ｂの下端面６９ａ、６９ｂと基板１４の実装面１６との接触抵抗によって、基板１４をケース本体３６に対して保持することができる。 In the light emitting device 10 according to the present embodiment, the distance L1 from the lower end surfaces 69a, 69b of the projections 68a, 68b to the upper end surfaces of the mounting claws 70a, 70b, 70c, 70d is set to the mounting hole 16 from the mounting surface 16 of the substrate 14. You may set to the same distance L2 to the upper end part of 52a, 52b, 52c, 52d. In this case, the substrate 14 is hardly pressed by the projections 68a and 68b, but the substrate 14 is against the case body 36 by the contact resistance between the lower end surfaces 69a and 69b of the projections 68a and 68b and the mounting surface 16 of the substrate 14. Can be held.

本実施の形態では、装着爪７０ａ、７０ｂ、７０ｃ、７０ｄに代えてカバー部２４の突出部６２ａ、６２ｂに装着孔を形成し、装着孔５２ａ、５２ｂ、５２ｃ、５２ｄに代えてケース本体３６の側壁部４６ａ、４６ｂに装着爪を設けてもよい。この場合にもカバー部２４をケース２２に対して容易に装着することができる。 In the present embodiment, instead of the mounting claws 70a, 70b, 70c, 70d, mounting holes are formed in the protrusions 62a, 62b of the cover portion 24, and the mounting holes 52a, 52b, 52c, 52d are replaced with the mounting holes 52a, 52b, 52c, 52d. You may provide a mounting nail | claw in the side wall parts 46a and 46b. Also in this case, the cover part 24 can be easily attached to the case 22.

装着孔５２ａ〜５２ｄ、装着爪７０ａ〜７０ｄ、及び、固定爪５４ａ、５４ｂの数量・位置・形状は、適宜変更可能である。また、第１ストッパ部８６ａ、８６ｂ、第２ストッパ部９２ａ、９２ｂ、１０６ａ、１０６ｂ、及び、凸部９６ａ、９６ｂの数量・位置・形状は、適宜変更可能である。 The quantity, position, and shape of the mounting holes 52a to 52d, the mounting claws 70a to 70d, and the fixing claws 54a and 54b can be changed as appropriate. Moreover, the quantity, position, and shape of the first stopper portions 86a and 86b, the second stopper portions 92a, 92b, 106a, and 106b, and the convex portions 96a and 96b can be changed as appropriate.

本実施の形態に係る筒部８０は、樹脂材料で構成される例に限らず、任意の材料で構成してよい。例えば、筒部８０は、鉄等の金属材料で構成してもよい。この場合、例えば、筒部８０の厚みを調節する（筒部８０を肉薄に形成する）ことにより、導光体２５を筒部８０の内部に挿入する際に該筒部８０を半径方向外方に好適に撓ませることが可能である。なお、筒部１０４についても同様に任意の材料で構成してよい。 The cylinder portion 80 according to the present embodiment is not limited to an example made of a resin material, and may be made of any material. For example, the cylinder part 80 may be made of a metal material such as iron. In this case, for example, when the light guide 25 is inserted into the cylindrical portion 80 by adjusting the thickness of the cylindrical portion 80 (the cylindrical portion 80 is formed thin), the cylindrical portion 80 is moved radially outward. Can be suitably bent. Similarly, the cylindrical portion 104 may be made of any material.

本発明は上記した実施形態に限らず、本発明の要旨を逸脱することなく、種々の構成を採り得ることは当然可能である。本発明に係る発光装置は、車両室内の照明用に限定されない。 The present invention is not limited to the above-described embodiment, and it is naturally possible to adopt various configurations without departing from the gist of the present invention. The light emitting device according to the present invention is not limited to lighting in the vehicle compartment.

１０…発光装置１２…発光素子
１４…基板１６…実装面
１８…電子部品２０ａ、２０ｂ…接続端子
２２…ケース（支持部材）２４、１００…カバー部
２５、１０２…導光体２８…裏面
３０…溶着部（固定部）３２…湾曲部
３４…リード部４２ａ、４２ｂ…第１段差部
４４ａ、４４ｂ…第２段差部４５ａ、４５ｂ…第１上面
４６ａ、４６ｂ…側壁部４７ａ、４７ｂ…第２垂直面
５２ａ、５２ｂ、５２ｃ、５２ｄ…装着孔（第２係合部）
５４ａ、５４ｂ…固定爪６０…カバー部本体
６１…ベース部６２ａ、６２ｂ…突出部
６８ａ、６８ｂ…突起部
７０ａ、７０ｂ、７０ｃ、７０ｄ…装着爪（第１係合部）
７２…端子保持部７４ａ、７４ｂ…凹部
８０、１０４…筒部８６ａ、８６ｂ…第１ストッパ部
８８…係止溝
９２ａ、９２ｂ、１０６ａ、１０６ｂ…第２ストッパ部
９４…導光体本体９６ａ、９６ｂ…凸部
９８…係止用突起 DESCRIPTION OF SYMBOLS 10 ... Light-emitting device 12 ... Light-emitting element 14 ... Board | substrate 16 ... Mounting surface 18 ... Electronic component 20a, 20b ... Connection terminal 22 ... Case (support member) 24, 100 ... Cover part 25, 102 ... Light guide 28 ... Back surface 30 ... Welded portion (fixed portion) 32 ... curved portion 34 ... lead portion 42a, 42b ... first stepped portion 44a, 44b ... second stepped portion 45a, 45b ... first upper surface 46a, 46b ... sidewall portion 47a, 47b ... second vertical Surfaces 52a, 52b, 52c, 52d... Mounting hole (second engaging portion)
54a, 54b ... fixed claw 60 ... cover body 61 ... base portion 62a, 62b ... projections 68a, 68b ... projections 70a, 70b, 70c, 70d ... mounting claws (first engaging portion)
72 ... Terminal holding part 74a, 74b ... Recess 80, 104 ... Tube part 86a, 86b ... First stopper part 88 ... Locking groove 92a, 92b, 106a, 106b ... Second stopper part 94 ... Light guide body 96a, 96b ... Projection 98 ... Protrusion for locking

Claims

A light emitting element;
A substantially rectangular substrate on which the light emitting element is mounted;
A support member for holding the substrate;
A cover part provided on the support member and covering the light emitting element, and a light emitting device comprising:
The cover portion has a cylindrical portion in which a light guide that guides light emitted from the light emitting element can be mounted.
A gap is provided between the back surface of the substrate and the inner surface of the bottom portion of the support member so as to overlap the cylindrical portion in the axial direction of the cylindrical portion,
The cover part is in contact with the surface of the substrate along each long side of the substrate,
A light emitting device characterized by that.

The light-emitting device according to claim 1.
The size of the gap in the longitudinal direction of the substrate is longer than the size of the cylindrical portion in the longitudinal direction of the substrate,
A light emitting device characterized by that.

The light emitting device according to claim 1 or 2,
The light emitting element is disposed adjacent to the cylindrical portion,
The gap is provided so as to overlap the light emitting element in the axial direction of the cylindrical portion.
A light emitting device characterized by that.

In the light-emitting device of any one of Claims 1-3,
The substrate is provided with a connection terminal that penetrates the substrate in the thickness direction,
A part of the connection terminal is located in the gap,
A light emitting device characterized by that.

The light-emitting device according to claim 4.
Electronic components are disposed on the substrate between the light emitting element and the connection terminal,
The gap is provided so as to overlap each of the light emitting element, the connection terminal, and the electronic component in the axial direction of the cylindrical portion,
A light emitting device characterized by that.