JP6827177B2 - In-vehicle camera and its assembly method - Google Patents
In-vehicle camera and its assembly method Download PDFInfo
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- JP6827177B2 JP6827177B2 JP2017102206A JP2017102206A JP6827177B2 JP 6827177 B2 JP6827177 B2 JP 6827177B2 JP 2017102206 A JP2017102206 A JP 2017102206A JP 2017102206 A JP2017102206 A JP 2017102206A JP 6827177 B2 JP6827177 B2 JP 6827177B2
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- 238000000034 method Methods 0.000 title claims description 43
- 238000003466 welding Methods 0.000 claims description 110
- 229920005989 resin Polymers 0.000 claims description 92
- 239000011347 resin Substances 0.000 claims description 92
- 239000000463 material Substances 0.000 claims description 39
- 230000001678 irradiating effect Effects 0.000 claims 3
- 230000002093 peripheral effect Effects 0.000 description 14
- 239000013071 indirect material Substances 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 8
- -1 polybutylene terephthalate Polymers 0.000 description 8
- 229920001225 polyester resin Polymers 0.000 description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 238000004040 coloring Methods 0.000 description 4
- 229920001707 polybutylene terephthalate Polymers 0.000 description 4
- 239000004645 polyester resin Substances 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 229920005672 polyolefin resin Polymers 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000004695 Polyether sulfone Substances 0.000 description 2
- 239000004697 Polyetherimide Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 2
- 229920002492 poly(sulfone) Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920006122 polyamide resin Polymers 0.000 description 2
- 229920001230 polyarylate Polymers 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920006393 polyether sulfone Polymers 0.000 description 2
- 229920001601 polyetherimide Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920006380 polyphenylene oxide Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
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- 238000003384 imaging method Methods 0.000 description 1
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Description
本開示は、車載カメラおよびその組立方法に関する。 The present disclosure relates to an in-vehicle camera and a method of assembling the same.
従来から、レーザを透過する光透過性樹脂から成る部材と、レーザを吸収する光吸収性樹脂から成る部材とを溶着する透過レーザ溶着工法が知られている。これに関して特許文献１には、透過レーザ溶着工法を使用したレンズ部材とケース部材との接合方法が開示されている。図９に示すように、この接合方法において、光吸収性樹脂から成るレンズ部材９０１およびケース部材９０２が、それぞれ光透過性樹脂から成る間接材９０３に溶着されることによって、間接材９０３を介してレンズ部材９０１とケース部材９０２とが接合される。そのため、光透過性樹脂をレンズ部材９０１およびケース部材９０２に用いなくてもよく、透過光による内部部品への不具合を低減できる。 Conventionally, a transmission laser welding method has been known in which a member made of a light transmitting resin that transmits a laser and a member made of a light absorbing resin that absorbs a laser are welded. In this regard, Patent Document 1 discloses a method of joining a lens member and a case member using a transmission laser welding method. As shown in FIG. 9, in this joining method, the lens member 901 and the case member 902 made of the light absorbing resin are welded to the indirect material 903 made of the light transmitting resin, respectively, thereby passing through the indirect material 903. The lens member 901 and the case member 902 are joined. Therefore, it is not necessary to use the light-transmitting resin for the lens member 901 and the case member 902, and it is possible to reduce defects in the internal parts due to transmitted light.
しかしながら、特許文献１の接合方法の場合、使用する間接材９０３はくさび状であるため、レーザ照射方向における間接材９０３の厚みは位置により異なる。そのため、ケース部材９０２に届くレーザ光Ｌのエネルギーは位置により異なり、確実に溶着できないといった課題がある。例えば、間接材９０３の厚みが厚い厚みＷ１の位置では、厚みが薄い厚みＷ２の位置に比べてレーザ光Ｌが減衰し易く、溶着不足による溶着ムラが発生し易くなる。 However, in the case of the joining method of Patent Document 1, since the indirect material 903 used is wedge-shaped, the thickness of the indirect material 903 in the laser irradiation direction differs depending on the position. Therefore, the energy of the laser beam L reaching the case member 902 differs depending on the position, and there is a problem that welding cannot be performed reliably. For example, at the position of the thick thickness W1 of the indirect material 903, the laser beam L is more likely to be attenuated than at the position of the thin thickness W2, and uneven welding is likely to occur due to insufficient welding.
本開示では、より確実に溶着された車載カメラおよびその組立方法を提供することを目的とする。 An object of the present disclosure is to provide a more reliably welded in-vehicle camera and a method for assembling the same.
本開示の車載カメラは、溶着リングと、筐体と、レンズユニットと、を備えている。溶着リングは、光透過性樹脂を含む材料から成り第１主面と第２主面を有する平板状である。筐体は、光吸収性樹脂を含む材料から成る。レンズユニットは、光吸収性樹脂を含む材料から成る。さらに、筐体は、溶着リングの第１主面の筐体当接領域に当接された状態で溶着リングに溶着されており、レンズユニットは、溶着リングの第１主面のレンズユニット当接領域に当接された状態で溶着リングに溶着されている。 The vehicle-mounted camera of the present disclosure includes a welding ring, a housing, and a lens unit. The welding ring is made of a material containing a light-transmitting resin and has a flat plate shape having a first main surface and a second main surface. The housing is made of a material containing a light absorbing resin. The lens unit is made of a material containing a light absorbing resin. Further, the housing is welded to the welding ring in a state of being in contact with the housing contact region on the first main surface of the welding ring, and the lens unit is in contact with the lens unit on the first main surface of the welding ring. It is welded to the welding ring in a state of being in contact with the region.
本開示に係る車載カメラは、平板状の間接材の第１主面に筐体およびレンズユニットが溶着されている。この構成により、間接材の第２主面側からレーザを照射した場合におけるレーザ照射方向における間接材の厚さは一定である。そのため、筐体およびレンズユニットに照射されるレーザ光のエネルギーも一定になり、間接材と筐体との溶着および間接材とレンズユニットとの溶着の信頼性が高い。 In the vehicle-mounted camera according to the present disclosure, the housing and the lens unit are welded to the first main surface of the flat plate-shaped indirect material. With this configuration, the thickness of the indirect material in the laser irradiation direction when the laser is irradiated from the second main surface side of the indirect material is constant. Therefore, the energy of the laser beam applied to the housing and the lens unit is also constant, and the reliability of welding between the indirect material and the housing and welding between the indirect material and the lens unit is high.
以下、本実施の形態に係る車載カメラについて、図面を参照して詳しく説明する。なお、本実施の形態で記載している、材料、形状等は好ましいものを例示しているだけであり、それに限定されることはない。また、本発明の技術的思想の範囲を逸脱しない範囲で、適宜変更は可能である。さらに、他の実施の形態との組み合わせは、矛盾が生じない範囲で可能である。 Hereinafter, the in-vehicle camera according to the present embodiment will be described in detail with reference to the drawings. It should be noted that the materials, shapes, and the like described in the present embodiment are merely examples of preferable ones, and are not limited thereto. Further, changes can be made as appropriate without departing from the scope of the technical idea of the present invention. Furthermore, the combination with other embodiments is possible as long as there is no contradiction.
〔実施の形態１〕
（車載カメラ１００の構成）
図１は、実施の形態１に係る車載カメラ１００の斜視図である。図２は、実施の形態１に係る車載カメラ１００の平面図である。図１および図２に示すように、実施の形態１に係る車載カメラ１００は、上筐体１１０と、下筐体１２０と、レンズユニット１３０と、溶着リング１４０とを備える。
[Embodiment 1]
(Configuration of in-vehicle camera 100)
FIG. 1 is a perspective view of the vehicle-mounted camera 100 according to the first embodiment. FIG. 2 is a plan view of the vehicle-mounted camera 100 according to the first embodiment. As shown in FIGS. 1 and 2, the vehicle-mounted camera 100 according to the first embodiment includes an upper housing 110, a lower housing 120, a lens unit 130, and a welding ring 140.
＜上筐体１１０＞
図３は、図２におけるＡ−Ａ線に沿った断面図である。図３に示すように、上筐体１１０は、上端部１１１に上側開口１１２を有し、下端部１１３に下側開口１１４を有する方形筒状である。上筐体１１０の内部空間には、固体撮像素子１５０、センサ基板１６０、電源基板（不図示）などが収容されている。これにより、固体撮像素子１５０、センサ基板１６０、電源基板に搭載される各種電子部品を保護することができる。なお、上筐体１１０は本実施の形態において方形筒状であるが、これに限らず、方形以外の多角形の筒状、円形や楕円形の筒状、その他の形状の筒であってもよい。
<Upper housing 110>
FIG. 3 is a cross-sectional view taken along the line AA in FIG. As shown in FIG. 3, the upper housing 110 has a square tubular shape having an upper opening 112 at the upper end 111 and a lower opening 114 at the lower end 113. A solid-state image sensor 150, a sensor board 160, a power supply board (not shown), and the like are housed in the internal space of the upper housing 110. Thereby, various electronic components mounted on the solid-state image sensor 150, the sensor substrate 160, and the power supply substrate can be protected. The upper housing 110 has a rectangular tubular shape in the present embodiment, but is not limited to this, and may be a polygonal tubular shape other than a square shape, a circular or elliptical tubular shape, or a cylinder having another shape. Good.
上筐体１１０の上端部１１１にはレンズユニット１３０が、レンズユニット１３０の下端部を上筐体１１０の上側開口１１２内に挿入するようにして、装着されている。上筐体１１０の上端部１１１には、上筐体１１０の側壁１１５の内周面から内側に向けて突出する円環状の突出部分１１６が設けられている。突出部分１１６は、溶着リング１４０を介しレンズユニット１３０と接合されている。なお、この接合構成は、車載カメラ１００の第１要部であるため、後ほど詳細に説明する。 A lens unit 130 is attached to the upper end 111 of the upper housing 110 so that the lower end of the lens unit 130 is inserted into the upper opening 112 of the upper housing 110. The upper end 111 of the upper housing 110 is provided with an annular protruding portion 116 that projects inward from the inner peripheral surface of the side wall 115 of the upper housing 110. The protruding portion 116 is joined to the lens unit 130 via a welding ring 140. Since this joining configuration is the first main part of the in-vehicle camera 100, it will be described in detail later.
上筐体１１０の下端部１１３には、下側開口１１４を塞ぐようにして、下筐体１２０が装着されている。具体的には、上筐体１１０の方形環状の下面１１８に、下筐体１２０の鍔部１２５の第１主面１２６を当接させた状態で、上筐体１１０の下面１１８と下筐体１２０の鍔部１２５の第１主面１２６とが溶着されている。なお、この接合構成は、車載カメラ１００の第２要部であるため、後ほど詳細に説明する。 The lower housing 120 is attached to the lower end 113 of the upper housing 110 so as to close the lower opening 114. Specifically, the lower surface 118 of the upper housing 110 and the lower housing are in a state where the first main surface 126 of the flange portion 125 of the lower housing 120 is in contact with the square annular lower surface 118 of the upper housing 110. The first main surface 126 of the collar portion 125 of 120 is welded. Since this joining configuration is the second main part of the in-vehicle camera 100, it will be described in detail later.
上筐体１１０は、光吸収性樹脂を含む材料から成る。光吸収性樹脂としては、例えば、ポリアミド系樹脂、オレフィン系樹脂、ビニル系樹脂、スチレン系樹脂、アクリル系樹脂、ポリエステル系樹脂、ポリカーボネート系樹脂、ポリアリレート系樹脂、ポリサルフォン系樹脂、ポリフェニレンオキサイド系樹脂、ポリエーテルサルフォン系樹脂、ポリエーテルイミド系樹脂等を用いることができる。なお、用いる光吸収性樹脂は、１種類であっても複数種類であってもよい。また、主となる光吸収性樹脂に、レーザ光を吸収する吸収剤又は着色材料を含有させてもよい。 The upper housing 110 is made of a material containing a light absorbing resin. Examples of the light-absorbing resin include polyamide-based resin, olefin-based resin, vinyl-based resin, styrene-based resin, acrylic-based resin, polyester-based resin, polycarbonate-based resin, polyarylate-based resin, polysulfone-based resin, and polyphenylene oxide-based resin. , Polyether sulfone-based resin, polyetherimide-based resin and the like can be used. The light absorbing resin used may be one type or a plurality of types. Further, the main light-absorbing resin may contain an absorbent or a coloring material that absorbs laser light.
上筐体１１０を、光吸収性樹脂を含む材料から構成することにより、上筐体１１０の内部空間への光の透過を低減することができる。すなわち、車載カメラ１００外部から車載カメラ１００内部への光の透過を低減することができる。そのため、透過光による固体撮像素子１５０のハレーションを防止することができる。 By forming the upper housing 110 from a material containing a light-absorbing resin, it is possible to reduce the transmission of light into the internal space of the upper housing 110. That is, it is possible to reduce the transmission of light from the outside of the vehicle-mounted camera 100 to the inside of the vehicle-mounted camera 100. Therefore, halation of the solid-state image sensor 150 due to transmitted light can be prevented.
＜下筐体１２０＞
下筐体１２０は、筒部１２１と蓋部１２２とから構成される。
<Lower housing 120>
The lower housing 120 is composed of a tubular portion 121 and a lid portion 122.
筒部１２１は上筐体１１０よりも細い方形筒状であり、内部空間に接続端子１２３を収容し、接続端子１２３を保護している。接続端子１２３は、一端が電源基板などに接続されており、他端は車載カメラ１００が搭載される車両などに接続される。接続端子１２３は、画像信号等の各種信号の伝送や電力供給を行う。なお、上筐体１１０は本実施の形態において方形筒状であるが、これに限らず、方形以外の多角形の筒状、円形や楕円形の筒状、その他の形状の筒であってもよい。 The tubular portion 121 has a rectangular tubular shape thinner than the upper housing 110, accommodates the connection terminal 123 in the internal space, and protects the connection terminal 123. One end of the connection terminal 123 is connected to a power supply board or the like, and the other end is connected to a vehicle or the like on which the in-vehicle camera 100 is mounted. The connection terminal 123 transmits various signals such as image signals and supplies electric power. The upper housing 110 has a rectangular tubular shape in the present embodiment, but is not limited to this, and may be a polygonal tubular shape other than a square shape, a circular or elliptical tubular shape, or a cylinder having another shape. Good.
蓋部１２２は、筒部１２１の上側開口を塞ぐように設けられている。蓋部１２２の外縁部１２４は、全周に亘って筒部１２１よりも外側に張り出しており、その外縁部１２４にはさらに外側に張り出す方形環状の鍔部１２５が設けられている。 The lid portion 122 is provided so as to close the upper opening of the tubular portion 121. The outer edge portion 124 of the lid portion 122 projects outward from the tubular portion 121 over the entire circumference, and the outer edge portion 124 is provided with a square annular collar portion 125 that projects further outward.
鍔部１２５は、上筐体１１０の下面１１８に溶着される第１主面（上面）１２６と、レーザ溶着時にレーザが照射される第２主面（下面）１２７とを有する。鍔部１２５の外周面は、上筐体１１０の側壁１１５の外周面と面一になっている。なお、本実施の形態において、鍔部１２５の外周面は、上筐体１１０の側壁１１５の外周面と面一になっているが、これに限られない。例えば、鍔部１２５の外周面は、側壁１１５の外周面から突出していてもよい。 The collar portion 125 has a first main surface (upper surface) 126 welded to the lower surface 118 of the upper housing 110, and a second main surface (lower surface) 127 to which a laser is irradiated at the time of laser welding. The outer peripheral surface of the flange portion 125 is flush with the outer peripheral surface of the side wall 115 of the upper housing 110. In the present embodiment, the outer peripheral surface of the flange portion 125 is flush with the outer peripheral surface of the side wall 115 of the upper housing 110, but the present invention is not limited to this. For example, the outer peripheral surface of the flange portion 125 may protrude from the outer peripheral surface of the side wall 115.
下筐体１２０は、光透過性樹脂を含む材料から成る。例えば、光透過性樹脂としては、ポリエステル樹脂、ポリオレフィン樹脂、ポリアミド樹脂、塩化ビニル樹脂、フッ素樹脂等から形成される。ポリエステル樹脂としては、ポリプチレンテレフタレート（ＰＢＴ）、ポリエチレンテレフタレート（ＰＥＴ）等を用いることができる。ポリオレフィン樹脂としては、ポリエチレン、ポリプロピレン等を用いることができる。なお、用いる光透過性樹脂は、１種類であっても複数種類であってもよい。また、一定水準以上の透過性能を実現可能であれば、主となる光透過性樹脂に、着色材料や充填材を含有させてもよい。 The lower housing 120 is made of a material containing a light transmitting resin. For example, the light-transmitting resin is formed of a polyester resin, a polyolefin resin, a polyamide resin, a vinyl chloride resin, a fluororesin, or the like. As the polyester resin, polybutylene terephthalate (PBT), polyethylene terephthalate (PET) and the like can be used. As the polyolefin resin, polyethylene, polypropylene and the like can be used. The light-transmitting resin used may be one type or a plurality of types. Further, if it is possible to achieve a transmission performance of a certain level or higher, the main light-transmitting resin may contain a coloring material or a filler.
下筐体１２０が光透過性樹脂を含む材料から成る構成とすることにより、下筐体１２０と上筐体１１０とをレーザ溶着することができる。 By making the lower housing 120 made of a material containing a light transmissive resin, the lower housing 120 and the upper housing 110 can be laser welded.
＜レンズユニット１３０＞
レンズユニット１３０は、円筒状のレンズ鏡筒と、レンズ鏡筒内部に設けられる複数のレンズとから構成される。レンズ鏡筒は、円筒状であり、レンズ鏡筒内部においてレンズ群を保持している。各レンズは、それぞれの光軸を一致させた状態に並べられ、撮像に用いられるレンズ群を構成している。
<Lens unit 130>
The lens unit 130 is composed of a cylindrical lens barrel and a plurality of lenses provided inside the lens barrel. The lens barrel has a cylindrical shape and holds a lens group inside the lens barrel. The lenses are arranged so that their optical axes are aligned with each other to form a lens group used for imaging.
レンズユニット１３０は、レンズ鏡筒の外周面１３１から外側に向けて張り出した円環状の突出部分１３２を有する。突出部分１３２は、上筐体１１０の上側開口１１２内に位置しており、上筐体１１０の側壁１１５の内周面に向けて突出している。突出部分１３２は、溶着リング１４０を介し上筐体１１０と接合される。 The lens unit 130 has an annular projecting portion 132 that projects outward from the outer peripheral surface 131 of the lens barrel. The protruding portion 132 is located in the upper opening 112 of the upper housing 110, and protrudes toward the inner peripheral surface of the side wall 115 of the upper housing 110. The protruding portion 132 is joined to the upper housing 110 via a welding ring 140.
突出部分１３２の上面１３３は、溶着リング１４０の第１主面１４１に当接された状態で溶着リング１４０の第１主面１４１と溶着されている。 The upper surface 133 of the protruding portion 132 is welded to the first main surface 141 of the welding ring 140 in a state of being in contact with the first main surface 141 of the welding ring 140.
突出部分１３２の上側部分１３４は、上筐体１１０の突出部分１１６と対向しており、突出部分１３２の下側部分１３５は、上側部分１３４よりも上筐体１１０の側壁１１５の内周面に向けて突出している。 The upper portion 134 of the protruding portion 132 faces the protruding portion 116 of the upper housing 110, and the lower portion 135 of the protruding portion 132 is on the inner peripheral surface of the side wall 115 of the upper housing 110 with respect to the upper portion 134. It protrudes toward.
溶着リング１４０の第２主面１４２と直交する方向から見た場合（図３において紙面上方から下方を見た場合）に、下側部分１３５は上筐体１１０の突出部分１１６の下方に位置し、下側部分１３５と上筐体１１０の突出部分１１６とは重なっている。これにより、下側部分１３５は、レンズ鏡筒の突出部分１３２と上筐体１１０の突出部分１１６との隙間を通過した光を上方に反射させることができる。そのため、通過した光が固体撮像素子１５０に照射されることを低減し、通過光による固体撮像素子１５０のハレーションを防止することができる。 When viewed from the direction orthogonal to the second main surface 142 of the welding ring 140 (when viewed from above to below the paper surface in FIG. 3), the lower portion 135 is located below the protruding portion 116 of the upper housing 110. , The lower portion 135 and the protruding portion 116 of the upper housing 110 overlap. As a result, the lower portion 135 can reflect the light that has passed through the gap between the protruding portion 132 of the lens barrel and the protruding portion 116 of the upper housing 110 upward. Therefore, it is possible to reduce the irradiation of the passed light to the solid-state image sensor 150 and prevent halation of the solid-state image sensor 150 due to the passing light.
レンズ鏡筒は、光吸収性樹脂を含む材料から成る。光吸収性樹脂としては、例えば、ポリアミド系樹脂、オレフィン系樹脂、ビニル系樹脂、スチレン系樹脂、アクリル系樹脂、ポリエステル系樹脂、ポリカーボネート系樹脂、ポリアリレート系樹脂、ポリサルフォン系樹脂、ポリフェニレンオキサイド系樹脂、ポリエーテルサルフォン系樹脂、ポリエーテルイミド系樹脂等を用いることができる。なお、用いる光吸収性樹脂は、１種類であっても複数種類であってもよい。また、主となる光吸収性樹脂に、レーザ光を吸収する吸収剤又は着色材料を含有させてもよい。 The lens barrel is made of a material containing a light absorbing resin. Examples of the light-absorbing resin include polyamide-based resin, olefin-based resin, vinyl-based resin, styrene-based resin, acrylic-based resin, polyester-based resin, polycarbonate-based resin, polyarylate-based resin, polysulfone-based resin, and polyphenylene oxide-based resin. , Polyether sulfone-based resin, polyetherimide-based resin and the like can be used. The light absorbing resin used may be one type or a plurality of types. Further, the main light-absorbing resin may contain an absorbent or a coloring material that absorbs laser light.
レンズ鏡筒を、光吸収性樹脂を含む材料から構成することにより、内部空間への光の透過を低減することができる。すなわち、車載カメラ１００外部から車載カメラ１００内部への光の透過を低減することができる。そのため、透過光による固体撮像素子１５０のハレーションを防止することができる。 By forming the lens barrel from a material containing a light-absorbing resin, it is possible to reduce the transmission of light into the internal space. That is, it is possible to reduce the transmission of light from the outside of the vehicle-mounted camera 100 to the inside of the vehicle-mounted camera 100. Therefore, halation of the solid-state image sensor 150 due to transmitted light can be prevented.
＜溶着リング１４０＞
溶着リング１４０は、平板円環状である。溶着リング１４０の内周面は、レンズユニット１３０の外周面と対向しており、溶着リング１４０の内径は、レンズユニット１３０が挿入可能な径である。また図３に示すように、溶着リング１４０はレンズユニット１３０と上筐体１１０とに当接する第１主面（下面）１４１と、レーザ溶接時にレーザが照射される第２主面（上面）１４２とを有する。
<Welding ring 140>
The welding ring 140 is a flat plate annular shape. The inner peripheral surface of the welding ring 140 faces the outer peripheral surface of the lens unit 130, and the inner diameter of the welding ring 140 is a diameter into which the lens unit 130 can be inserted. Further, as shown in FIG. 3, the welding ring 140 has a first main surface (lower surface) 141 that abuts the lens unit 130 and the upper housing 110, and a second main surface (upper surface) 142 that is irradiated with a laser during laser welding. And have.
溶着リング１４０は、光透過性樹脂を含む材料から成る。例えば、光透過性樹脂としては、ポリエステル樹脂、ポリオレフィン樹脂、ポリアミド樹脂、塩化ビニル樹脂、フッ素樹脂等から形成される。ポリエステル樹脂としては、ポリプチレンテレフタレート（ＰＢＴ）、ポリエチレンテレフタレート（ＰＥＴ）等を用いることができる。ポリオレフィン樹脂としては、ポリエチレン、ポリプロピレン等を用いることができる。なお、用いる光透過性樹脂は、１種類であっても複数種類であってもよい。また、一定水準以上の透過性能を実現可能であれば、主となる光透過性樹脂に、着色材料や充填材を含有させてもよい。 The welding ring 140 is made of a material containing a light transmitting resin. For example, the light-transmitting resin is formed of a polyester resin, a polyolefin resin, a polyamide resin, a vinyl chloride resin, a fluororesin, or the like. As the polyester resin, polybutylene terephthalate (PBT), polyethylene terephthalate (PET) and the like can be used. As the polyolefin resin, polyethylene, polypropylene and the like can be used. The light-transmitting resin used may be one type or a plurality of types. Further, if it is possible to achieve a transmission performance of a certain level or higher, the main light-transmitting resin may contain a coloring material or a filler.
なお、溶着リング１４０は本実施の形態において平板円環状であるが、これに限らず、平板状であればよい。したがって、円環状に限らず、方形環状などの多角形の環状、楕円の環状等のように円環状以外の環状であってもよい。また、環状に限らず、Ｃ字形、Ｕ字形などの線状であってもよい。 The welding ring 140 has a flat plate annular shape in the present embodiment, but is not limited to this, and may be a flat plate shape. Therefore, the ring shape is not limited to the ring shape, and may be a ring shape other than the ring shape, such as a polygonal ring shape such as a square ring shape or an elliptical ring shape. Further, the shape is not limited to an annular shape, and may be a linear shape such as a C-shape or a U-shape.
（車載カメラ１００の第１要部の構成）
次に、車載カメラ１００の第１要部の構成について図４を用いて説明する。図４は、実施の形態１に係る車載カメラ１００の第１要部を示す拡大断面図である。車載カメラ１００の第１要部は、図３における一点鎖線１で囲まれた部分に相当する。
(Structure of the first main part of the in-vehicle camera 100)
Next, the configuration of the first main part of the in-vehicle camera 100 will be described with reference to FIG. FIG. 4 is an enlarged cross-sectional view showing a first main part of the vehicle-mounted camera 100 according to the first embodiment. The first main part of the in-vehicle camera 100 corresponds to the portion surrounded by the alternate long and short dash line 1 in FIG.
図４に示すように、溶着リング１４０の第１主面１４１は筐体当接領域１４３とレンズユニット当接領域１４４とを有する。溶着リング１４０は、溶着リング１４０の筐体当接領域１４３において、上筐体１１０と溶着されている。また、溶着リング１４０は、溶着リング１４０のレンズユニット当接領域１４４において、レンズユニット１３０と溶着されている。このとき、上筐体１１０の突出部分１１６の上面１１７と、レンズユニット１３０の突出部分１３２の上面１３３とは略面一となるように溶着されている。そして、上筐体１１０の突出部分１１６と、レンズユニット１３０の突出部分１３２の上側部分１３４とは、隙間を空けて対向している。 As shown in FIG. 4, the first main surface 141 of the welding ring 140 has a housing contact region 143 and a lens unit contact region 144. The welding ring 140 is welded to the upper housing 110 in the housing contact region 143 of the welding ring 140. Further, the welding ring 140 is welded to the lens unit 130 in the lens unit contact region 144 of the welding ring 140. At this time, the upper surface 117 of the protruding portion 116 of the upper housing 110 and the upper surface 133 of the protruding portion 132 of the lens unit 130 are welded so as to be substantially flush with each other. The protruding portion 116 of the upper housing 110 and the upper portion 134 of the protruding portion 132 of the lens unit 130 face each other with a gap.
また、レンズユニット１３０の突出部分１３２の下側部分１３５は、上側部分１３４よりも上筐体１１０の側壁１１５の内周面に向けて突出している。 Further, the lower portion 135 of the protruding portion 132 of the lens unit 130 protrudes from the upper portion 134 toward the inner peripheral surface of the side wall 115 of the upper housing 110.
溶着リング１４０の第２主面１４２と直交する方向から見た場合（図４において紙面上方から下方を見た場合）に、レンズユニット１３０の突出部分１３２の下側部分１３５は上筐体１１０の突出部分１１６の下方に位置し、下側部分１３５と突出部分１１６とは重なっている。すなわち、溶着リング１４０の第２主面１４２と直交する方向から見た場合に、溶着リング１４０に溶着されたレンズユニット１３０の突出部分１３２と、溶着リング１４０に溶着された上筐体１１０の突出部分１１６とは重なっている。これにより、下側部分１３５は、レンズ鏡筒の突出部分１３２と上筐体１１０の突出部分１１６との隙間を通過した光を上方に反射させることができる。そのため、通過した光が固体撮像素子１５０に照射されることを低減し、通過光による固体撮像素子１５０のハレーションを防止することができる。なお、下側部分１３５はレンズユニット１３０に設けず、上筐体１１０に設けてもよい。 When viewed from a direction orthogonal to the second main surface 142 of the welding ring 140 (when viewed from above to below the paper surface in FIG. 4), the lower portion 135 of the protruding portion 132 of the lens unit 130 is the upper housing 110. It is located below the protruding portion 116, and the lower portion 135 and the protruding portion 116 overlap each other. That is, when viewed from a direction orthogonal to the second main surface 142 of the welding ring 140, the protruding portion 132 of the lens unit 130 welded to the welding ring 140 and the protruding portion 110 of the upper housing 110 welded to the welding ring 140. It overlaps with the portion 116. As a result, the lower portion 135 can reflect the light that has passed through the gap between the protruding portion 132 of the lens barrel and the protruding portion 116 of the upper housing 110 upward. Therefore, it is possible to reduce the irradiation of the passed light to the solid-state image sensor 150 and prevent halation of the solid-state image sensor 150 due to the passing light. The lower portion 135 may not be provided in the lens unit 130 but may be provided in the upper housing 110.
（レーザ溶着方法）
本実施の形態に係る車載カメラの組立方法の要部であるレーザ溶着方法について説明する。まずは、本実施の形態に係るレーザ溶着方法を説明する前に、一般的なレーザ溶着方法の概要を述べる。
(Laser welding method)
The laser welding method, which is a main part of the in-vehicle camera assembly method according to the present embodiment, will be described. First, before explaining the laser welding method according to the present embodiment, an outline of a general laser welding method will be described.
樹脂に圧力を加えた状態で、光透過性樹脂にレーザを照射すると、レーザは光透過性樹脂では吸収されずに透過し、光吸収性樹脂の表面で吸収される。吸収されたレーザのエネルギーは熱に変換され、光吸収性樹脂表面は加熱される。さらには、熱伝導により、光吸収性樹脂表面に当接する光透過性樹脂表面も加熱される。これにより、光吸収性樹脂と光透過性樹脂の境界面において樹脂が溶融される。レーザの照射を停止すると、溶融された樹脂が固化し、両樹脂が溶着される。 When the light-transmitting resin is irradiated with a laser while pressure is applied to the resin, the laser is not absorbed by the light-transmitting resin but is transmitted, and is absorbed by the surface of the light-absorbing resin. The absorbed laser energy is converted into heat and the surface of the light-absorbing resin is heated. Furthermore, the surface of the light-transmitting resin that comes into contact with the surface of the light-absorbing resin is also heated by heat conduction. As a result, the resin is melted at the interface between the light absorbing resin and the light transmitting resin. When the laser irradiation is stopped, the molten resin is solidified and both resins are welded.
次に、本実施の形態に係るレーザ溶着方法について図５と図６を用いて説明する。図５は、実施の形態１に係る車載カメラ１００の組立方法の要部を示す工程図である。図６は、実施の形態１に係るレーザの走査軌道を示す模式図である。 Next, the laser welding method according to the present embodiment will be described with reference to FIGS. 5 and 6. FIG. 5 is a process diagram showing a main part of the method of assembling the in-vehicle camera 100 according to the first embodiment. FIG. 6 is a schematic view showing a scanning trajectory of the laser according to the first embodiment.
まず、図５（ａ）に示すように、光吸収性樹脂を含む材料から成る上筐体１１０を準備する。続いて、図５（ｂ）に示すように、光透過性樹脂を含む材料から成り第１主面１４１と第２主面１４２を有する平板状の溶着リング１４０を準備する。そして、溶着リング１４０の第１主面１４１の筐体当接領域１４３に上筐体１１０の突出部分１１６の上面１１７を当接させて配置する。この際、溶着リング１４０の第１主面１４１のレンズユニット当接領域１４４は、上筐体１１０の突出部分１１６よりも外側に張り出している。続いて、図５（ｃ）に示すように、溶着リング１４０の第２主面１４２に対してレーザを照射する。第２主面１４２に照射されたレーザは、溶着リング１４０を透過して上筐体１１０の上面１１７に達する。上筐体１１０はレーザを吸収して加熱され、熱伝導により溶着リング１４０も加熱される。これにより、上筐体１１０と溶着リング１４０は溶融される。その後、溶融された樹脂が固化し両樹脂が溶着される。 First, as shown in FIG. 5A, an upper housing 110 made of a material containing a light-absorbing resin is prepared. Subsequently, as shown in FIG. 5B, a flat welding ring 140 made of a material containing a light-transmitting resin and having a first main surface 141 and a second main surface 142 is prepared. Then, the upper surface 117 of the protruding portion 116 of the upper housing 110 is placed in contact with the housing contact region 143 of the first main surface 141 of the welding ring 140. At this time, the lens unit contact region 144 of the first main surface 141 of the welding ring 140 projects outward from the protruding portion 116 of the upper housing 110. Subsequently, as shown in FIG. 5C, the second main surface 142 of the welding ring 140 is irradiated with a laser. The laser irradiated to the second main surface 142 passes through the welding ring 140 and reaches the upper surface 117 of the upper housing 110. The upper housing 110 absorbs the laser and is heated, and the welding ring 140 is also heated by heat conduction. As a result, the upper housing 110 and the welding ring 140 are melted. After that, the molten resin is solidified and both resins are welded.
図６において、実線はレーザ走査軌道３、破線はレーザ走査方向４を示している。図６に示すように、レーザは、溶着リング１４０の第２主面１４２に対して円を描くように走査する。 In FIG. 6, the solid line indicates the laser scanning trajectory 3, and the broken line indicates the laser scanning direction 4. As shown in FIG. 6, the laser scans in a circular motion with respect to the second main surface 142 of the welding ring 140.
続いて、図５（ｄ）に示すように、光吸収性樹脂を含む材料から成るレンズユニット１３０を準備する。レンズユニット１３０を上筐体１１０に挿入し、溶着リング１４０の第１主面１４１のレンズユニット当接領域１４４にレンズユニット１３０の上面１３３とを当接させて配置する。この際、レンズユニット１３０の上面１３３と、上筐体１１０の上面１１７とは略面一となる。 Subsequently, as shown in FIG. 5D, a lens unit 130 made of a material containing a light absorbing resin is prepared. The lens unit 130 is inserted into the upper housing 110, and is arranged so that the upper surface 133 of the lens unit 130 is in contact with the lens unit contact area 144 of the first main surface 141 of the welding ring 140. At this time, the upper surface 133 of the lens unit 130 and the upper surface 117 of the upper housing 110 are substantially flush with each other.
続いて、図５（ｅ）に示すように、溶着リング１４０の第２主面１４２に対してレーザを照射する。第２主面１４２に照射されたレーザは、溶着リング１４０を透過してレンズユニット１３０の上面１３３に達する。レンズユニット１３０はレーザを吸収して加熱され、熱伝導により溶着リング１４０も加熱される。これにより、レンズユニット１３０と溶着リング１４０は溶融される。その後、溶融された樹脂が固化し両樹脂が溶着される。 Subsequently, as shown in FIG. 5 (e), the second main surface 142 of the welding ring 140 is irradiated with a laser. The laser irradiated on the second main surface 142 passes through the welding ring 140 and reaches the upper surface 133 of the lens unit 130. The lens unit 130 absorbs the laser and is heated, and the welding ring 140 is also heated by heat conduction. As a result, the lens unit 130 and the welding ring 140 are melted. After that, the molten resin is solidified and both resins are welded.
（車載カメラ１００の第２要部の構成および、レーザ溶着方法）
次に、車載カメラ１００の第２要部の構成について図７を用いて説明する。図７は、本実施の形態に係る車載カメラ１００の第２要部を示す拡大断面図である。車載カメラ１００の第２要部は、図３における一点鎖線２で囲まれた部分に相当する。図７に示すように、上筐体１１０の下面１１８と下筐体１２０の第１主面１２６とは溶着されている。
(Structure of the second main part of the in-vehicle camera 100 and the laser welding method)
Next, the configuration of the second main part of the vehicle-mounted camera 100 will be described with reference to FIG. 7. FIG. 7 is an enlarged cross-sectional view showing a second main part of the vehicle-mounted camera 100 according to the present embodiment. The second main part of the in-vehicle camera 100 corresponds to the portion surrounded by the alternate long and short dash line 2 in FIG. As shown in FIG. 7, the lower surface 118 of the upper housing 110 and the first main surface 126 of the lower housing 120 are welded together.
車載カメラ１００の第２要部のレーザ溶着方法は、まず、光透過性樹脂を含む材料から成る下筐体１２０を準備する。続いて、上筐体１１０の下面１１８と下筐体１２０の第１主面１２６とを当接して配置する。続いて、下筐体１２０の第２主面１２７に対してレーザが照射される。下筐体１２０の第２主面１２７に照射されたレーザは、下筐体１２０を透過して上筐体１１０の下面１１８に達する。上筐体１１０はレーザを吸収して加熱され、熱伝導により下筐体１２０も加熱される。これにより、上筐体１１０と下筐体１２０は溶融される。その後、溶融された筐体が固化し両筐体が溶着される。以上のようにして、本実施の形態に係る車載カメラ１００が組立てられる。 In the laser welding method of the second main part of the in-vehicle camera 100, first, the lower housing 120 made of a material containing a light transmitting resin is prepared. Subsequently, the lower surface 118 of the upper housing 110 and the first main surface 126 of the lower housing 120 are placed in contact with each other. Subsequently, the laser is irradiated to the second main surface 127 of the lower housing 120. The laser irradiated to the second main surface 127 of the lower housing 120 passes through the lower housing 120 and reaches the lower surface 118 of the upper housing 110. The upper housing 110 absorbs the laser and is heated, and the lower housing 120 is also heated by heat conduction. As a result, the upper housing 110 and the lower housing 120 are melted. After that, the molten housing is solidified and both housings are welded. As described above, the in-vehicle camera 100 according to the present embodiment is assembled.
本実施の形態に係る車載カメラ１００の組立方法は、光吸収性樹脂を含む材料から成る上筐体１１０とレンズユニット１３０とを結びつける間接材として光透過性樹脂を含む材料から成る平板状の溶着リング１４０を用いている。さらに、溶着リング１４０の第１主面１４１に、上筐体１１０の上面１１７とレンズユニット１３０の上面１３３とを当接させる。これにより、レーザ照射方向における溶着リング１４０の厚さは一定である。そのため、溶着リング１４０に照射されるレーザ光のエネルギーも一定になり、より確実に溶着することができる。 The method of assembling the in-vehicle camera 100 according to the present embodiment is a flat welding plate made of a material containing a light-transmitting resin as an indirect material for connecting the upper housing 110 made of a material containing a light-absorbing resin and the lens unit 130. A ring 140 is used. Further, the upper surface 117 of the upper housing 110 and the upper surface 133 of the lens unit 130 are brought into contact with the first main surface 141 of the welding ring 140. As a result, the thickness of the welding ring 140 in the laser irradiation direction is constant. Therefore, the energy of the laser beam applied to the welding ring 140 becomes constant, and welding can be performed more reliably.
また、本実施の形態に係る車載カメラ１００の組立方法は、光吸収性樹脂を含む材料から成る上筐体１１０と、光透過性樹脂を含む材料から成り第１主面１２６および第２主面１２７を有する下筐体１２０を用いている。さらに、上筐体１１０を、下筐体１２０の第１主面１２６に当接させ、下筐体１２０の第２主面１２７にレーザを照射し上筐体１１０と下筐体１２０とを溶着する。これにより、上筐体１１０と下筐体１２０とをレーザ溶着することができる。 Further, in the method of assembling the in-vehicle camera 100 according to the present embodiment, the upper housing 110 made of a material containing a light absorbing resin and the first main surface 126 and the second main surface made of a material containing a light transmitting resin are used. The lower housing 120 having 127 is used. Further, the upper housing 110 is brought into contact with the first main surface 126 of the lower housing 120, and the second main surface 127 of the lower housing 120 is irradiated with a laser to weld the upper housing 110 and the lower housing 120. To do. As a result, the upper housing 110 and the lower housing 120 can be laser welded.
〔実施の形態２〕
図８は、実施の形態２に係る車載カメラの組立方法の要部を示す工程図である。図８に示すように、実施の形態２に係る車載カメラ１００の組立方法は、レーザ溶着方法の工程が実施の形態１に係る車載カメラ１００の組立方法とは異なる。その他の点については基本的に実施の形態１に係る車載カメラ１００の組立方法と同様であるため説明を省略する。
[Embodiment 2]
FIG. 8 is a process diagram showing a main part of the method of assembling the in-vehicle camera according to the second embodiment. As shown in FIG. 8, in the method of assembling the vehicle-mounted camera 100 according to the second embodiment, the process of the laser welding method is different from the method of assembling the vehicle-mounted camera 100 according to the first embodiment. Since the other points are basically the same as the assembly method of the in-vehicle camera 100 according to the first embodiment, the description thereof will be omitted.
（レーザ溶着方法）
本実施の形態に係る車載カメラの組立方法の要部であるレーザ溶着方法について説明する。
(Laser welding method)
The laser welding method, which is a main part of the in-vehicle camera assembly method according to the present embodiment, will be described.
まず、図８（ａ）に示すように、光吸収性樹脂を含む材料から成る上筐体１１０を準備する。続いて、図８（ｂ）に示すように、光透過性樹脂を含む材料から成り第１主面１４１と第２主面１４２を有する平板状の溶着リング１４０を準備する。そして、溶着リング１４０の第１主面１４１の筐体当接領域１４３に上筐体１１０の突出部分１１６の上面１１７を当接させて配置する。この際、溶着リング１４０の第１主面１４１のレンズユニット当接領域１４４は、上筐体１１０の突出部分１１６よりも外側に張り出している。続いて、図８（ｃ）に示すように、光吸収性樹脂を含む材料から成るレンズユニット１３０を準備する。レンズユニット１３０を上筐体１１０に挿入し、溶着リング１４０の第１主面１４１のレンズユニット当接領域１４４にレンズユニット１３０の上面１３３とを当接させて配置する。この際、レンズユニット１３０の上面１３３と、上筐体１１０の上面１１７とは略面一となる。 First, as shown in FIG. 8A, the upper housing 110 made of a material containing a light absorbing resin is prepared. Subsequently, as shown in FIG. 8B, a flat plate-shaped welding ring 140 made of a material containing a light-transmitting resin and having a first main surface 141 and a second main surface 142 is prepared. Then, the upper surface 117 of the protruding portion 116 of the upper housing 110 is placed in contact with the housing contact region 143 of the first main surface 141 of the welding ring 140. At this time, the lens unit contact region 144 of the first main surface 141 of the welding ring 140 projects outward from the protruding portion 116 of the upper housing 110. Subsequently, as shown in FIG. 8C, a lens unit 130 made of a material containing a light absorbing resin is prepared. The lens unit 130 is inserted into the upper housing 110, and is arranged so that the upper surface 133 of the lens unit 130 is in contact with the lens unit contact area 144 of the first main surface 141 of the welding ring 140. At this time, the upper surface 133 of the lens unit 130 and the upper surface 117 of the upper housing 110 are substantially flush with each other.
続いて、図８（ｄ）に示すように、溶着リング１４０の第２主面１４２に対してレーザを照射する。第２主面１４２に照射されたレーザは、溶着リング１４０を透過してレンズユニット１３０の上面１３３および上筐体１１０の上面１１７に達する。レンズユニット１３０および上筐体１１０はレーザを吸収して加熱され、熱伝導により溶着リング１４０も加熱される。これにより、レンズユニット１３０と溶着リング１４０とは溶融され、上筐体１１０と溶着リング１４０とは溶融される。その後、溶融された樹脂が固化し、レンズユニット１３０と溶着リング１４０とが溶着され、上筐体１１０と溶着リング１４０とが溶着される。 Subsequently, as shown in FIG. 8D, the laser is irradiated to the second main surface 142 of the welding ring 140. The laser irradiated to the second main surface 142 passes through the welding ring 140 and reaches the upper surface 133 of the lens unit 130 and the upper surface 117 of the upper housing 110. The lens unit 130 and the upper housing 110 absorb the laser and are heated, and the welding ring 140 is also heated by heat conduction. As a result, the lens unit 130 and the welding ring 140 are melted, and the upper housing 110 and the welding ring 140 are melted. After that, the molten resin is solidified, the lens unit 130 and the welding ring 140 are welded, and the upper housing 110 and the welding ring 140 are welded.
上記の構成によると、一度のレーザ照射により、レンズユニット１３０と溶着リング１４０とが溶着され、上筐体１１０と溶着リング１４０とが溶着される。そのため、レーザ溶着方法の工程を削減することができ、作業効率を向上させることができる。 According to the above configuration, the lens unit 130 and the welding ring 140 are welded by one laser irradiation, and the upper housing 110 and the welding ring 140 are welded. Therefore, the number of steps of the laser welding method can be reduced, and the work efficiency can be improved.
以上説明したように、本開示は、車載カメラおよびその組立方法に適用可能である。 As described above, the present disclosure is applicable to in-vehicle cameras and methods for assembling them.
１ 一点鎖線
２ 一点鎖線
３ レーザ走査軌道
４ レーザ走査方向
１００ 車載カメラ
１１０ 上筐体
１１１ 上端部
１１２ 上側開口
１１３ 下端部
１１４ 下側開口
１１５ 側壁
１１６ 突出部分（溶着リングに溶着された部分）
１１７ 上面
１１８ 下面
１２０ 下筐体
１２１ 筒部
１２２ 蓋部
１２３ 接続端子
１２４ 外縁部
１２５ 鍔部
１２６ 第１主面
１２７ 第２主面
１３０ レンズユニット
１３１ 外周面
１３２ 突出部分（溶着リングに溶着された部分）
１３３ 上面
１３４ 上側部分
１３５ 下側部分
１４０ 溶着リング
１４１ 第１主面
１４２ 第２主面
１４３ 筐体当接領域
１４４ レンズユニット当接領域
１５０ 固体撮像素子
１６０ センサ基板
９０１ レンズ部材
９０２ ケース部材
９０３ 間接材
1 Dashed line 2 Dashed line 2 Laser scanning orbit 4 Laser scanning direction 100 In-vehicle camera 110 Upper housing 111 Upper end 112 Upper opening 113 Lower end 114 Lower opening 115 Side wall 116 Protruding part (part welded to the welding ring)
117 Upper surface 118 Lower surface 120 Lower housing 121 Cylindrical part 122 Lid part 123 Connection terminal 124 Outer edge part 125 Brim part 126 First main surface 127 Second main surface 130 Lens unit 131 Outer peripheral surface 132 Protruding part (part welded to the welding ring )
133 Upper surface 134 Upper part 135 Lower part 140 Welding ring 141 First main surface 142 Second main surface 143 Housing contact area 144 Lens unit contact area 150 Solid-state image sensor 160 Sensor board 901 Lens member 902 Case member 903 Indirect material
Claims (6)
光吸収性樹脂を含む材料から成る筐体と、
光吸収性樹脂を含む材料から成るレンズユニットと、を備え、
前記筐体は、前記溶着リングの前記第１主面の筐体当接領域に当接された状態で前記溶着リングに溶着されており、
前記レンズユニットは、前記溶着リングの前記第１主面のレンズユニット当接領域に当接された状態で前記溶着リングに溶着されている
車載カメラ。 A flat welding ring made of a material containing a light-transmitting resin and having a first main surface and a second main surface,
A housing made of a material containing light-absorbing resin,
A lens unit made of a material containing a light-absorbing resin, and
The housing is welded to the welding ring in a state of being in contact with the housing contact region of the first main surface of the welding ring.
The lens unit is an in-vehicle camera that is welded to the welding ring in a state of being in contact with the lens unit contact region of the first main surface of the welding ring.
前記上筺体は前記溶着リングを介し前記レンズユニットと接合される筐体突出部を有し、
前記レンズユニットは、前記溶着リングを介し前記上筐体と接合されるレンズユニット突出部を有し、
前記レンズユニット突出部は、前記筐体突出部と対向する上側部分と、前記上側部分よりも更に突出している下側部分、からなり、
前記筐体突出部と、前記レンズユニット突出部の下側部分とは、前記溶着リングの前記第２主面と直交する方向から見て重なっている
請求項１記載の車載カメラ。 The housing is made of a material containing a light absorbing resin and includes an upper housing that is welded to the welding ring.
The upper housing has a housing protrusion that is joined to the lens unit via the welding ring.
The lens unit has a lens unit protrusion that is joined to the upper housing via the welding ring.
The lens unit projecting portion includes an upper portion facing the housing projecting portion and a lower portion projecting further from the upper portion.
The vehicle-mounted camera according to claim 1 , wherein the protruding portion of the housing and the lower portion of the protruding portion of the lens unit overlap each other when viewed from a direction orthogonal to the second main surface of the welding ring.
前記上筐体は、前記下筐体の前記鍔部の前記第１主面に当接された状態で前記下筐体に溶着されている
請求項１または２に記載の車載カメラ。 Further provided is a lower housing made of a material containing a light transmissive resin and provided with a flat collar having a first main surface and a second main surface.
The vehicle-mounted camera according to claim 1 or 2, wherein the upper housing is welded to the lower housing in a state of being in contact with the first main surface of the collar portion of the lower housing.
前記筐体を、前記溶着リングの前記第１主面の筐体当接領域に当接させる筐体配置工程と、
前記筐体配置工程後に、前記溶着リングの前記第２主面にレーザを照射し前記筐体と前記溶着リングとを溶着する筐体溶着工程と、
前記レンズユニットを、前記溶着リングの前記第１主面のレンズユニット当接領域に当接させるレンズユニット配置工程と、
前記レンズユニット配置工程後に、前記溶着リングの前記第２主面に前記レーザを照射し前記レンズユニットと前記溶着リングとを溶着するレンズユニット溶着工程と、を含む
車載カメラの組立方法。 A flat welding ring made of a material containing a light-transmitting resin and having a first main surface and a second main surface, a housing made of a material containing a light-absorbing resin, and a lens made of a material containing a light-absorbing resin. It is a method of assembling an in-vehicle camera equipped with a unit.
A housing arrangement step of bringing the housing into contact with the housing contact region of the first main surface of the welding ring, and
After the housing placement step, a housing welding step of irradiating the second main surface of the welding ring with a laser to weld the housing and the welding ring.
A lens unit arranging step of bringing the lens unit into contact with the lens unit contact region of the first main surface of the welding ring.
A method for assembling an in-vehicle camera, comprising a lens unit welding step of irradiating the second main surface of the welding ring with the laser to weld the lens unit and the welding ring after the lens unit arranging step.
前記筐体を、前記溶着リングの前記第１主面の筐体当接領域に当接させる筐体配置工程と、
前記レンズユニットを、前記溶着リングの前記第１主面のレンズユニット当接領域に当接させるレンズユニット配置工程と、
前記筐体配置工程および前記レンズユニット配置工程後に、前記溶着リングの前記第２主面に前記レーザを照射し、前記筐体と前記溶着リングとを溶着すると共に前記レンズユニットと前記溶着リングとを溶着する溶着工程と、を含む
車載カメラの組立方法。 A flat welding ring made of a material containing a light-transmitting resin and having a first main surface and a second main surface, a housing made of a material containing a light-absorbing resin, and a lens made of a material containing a light-absorbing resin. It is a method of assembling an in-vehicle camera equipped with a unit.
A housing arrangement step of bringing the housing into contact with the housing contact region of the first main surface of the welding ring, and
A lens unit arranging step of bringing the lens unit into contact with the lens unit contact region of the first main surface of the welding ring.
After the housing placement step and the lens unit placement step, the laser is irradiated to the second main surface of the welding ring to weld the housing and the welding ring, and the lens unit and the welding ring are welded together. An in-vehicle camera assembly method including a welding process for welding.
前記上筐体を、前記下筐体の前記鍔部の前記第１主面に当接させる上筐体配置工程と、
前記上筐体配置工程後に、前記下筐体の前記鍔部の前記第２主面に前記レーザを照射し前記上筐体と前記下筐体とを溶着する上筐体溶着工程と、を含む
請求項４または５に記載の車載カメラの組立方法。 The housing is made of a material containing a light-absorbing resin and is welded to the welding ring. The housing is made of a material containing a light-transmitting resin and has a flat collar having a first main surface and a second main surface. With a lower housing provided with a part,
An upper housing arranging step of bringing the upper housing into contact with the first main surface of the collar portion of the lower housing,
After the upper housing arranging step, the upper housing welding step of irradiating the second main surface of the collar portion of the lower housing with the laser to weld the upper housing and the lower housing is included. The method for assembling an in-vehicle camera according to claim 4 or 5.
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