JP2016078688A - On-vehicle sensor cleaning device - Google Patents
On-vehicle sensor cleaning device Download PDFInfo
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- JP2016078688A JP2016078688A JP2014212894A JP2014212894A JP2016078688A JP 2016078688 A JP2016078688 A JP 2016078688A JP 2014212894 A JP2014212894 A JP 2014212894A JP 2014212894 A JP2014212894 A JP 2014212894A JP 2016078688 A JP2016078688 A JP 2016078688A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
- B60S1/48—Liquid supply therefor
- B60S1/52—Arrangement of nozzles; Liquid spreading means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/56—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens
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Abstract
Description
本発明は、車載センサ洗浄装置に関するものである。 The present invention relates to an in-vehicle sensor cleaning device.
近年、車両の前部や後部に車載センサを設け、該車載センサにて撮像された画像を利用することが広く行われている。そして、このような車載センサのセンシング面（レンズや保護ガラス）は、泥や塩や融雪剤などの異物が付着する虞があるため、センシング面に向けてノズルの噴射口から洗浄液を噴射して異物を除去する車載センサ洗浄装置が提案されている。 2. Description of the Related Art In recent years, an in-vehicle sensor is provided at a front part or a rear part of a vehicle, and an image captured by the in-vehicle sensor is widely used. And since the sensing surface (lens and protective glass) of such an in-vehicle sensor has a possibility of adhering foreign matter such as mud, salt and snow melting agent, the cleaning liquid is sprayed from the nozzle nozzle toward the sensing surface. An in-vehicle sensor cleaning device that removes foreign matter has been proposed.
そして、車載センサ洗浄装置のノズルとしては、先端面に流体を導くための導入流路と前記先端面に形成され導入流路から直角に屈曲した方向に延びる噴射パターン構成溝とを有するノズル本体と、ノズル本体の先端面に固定され噴射パターン構成溝と共に流体の案内路及び噴射口を形成するキャップとを備えたものがある（例えば、特許文献１参照）。 And as a nozzle of the in-vehicle sensor cleaning device, a nozzle body having an introduction flow path for introducing fluid to the tip surface and an injection pattern constituting groove formed in the tip surface and extending in a direction bent at right angles from the introduction flow path; And a cap that is fixed to the tip surface of the nozzle body and that forms a fluid guide path and a jet port together with the jet pattern constituting groove (see, for example, Patent Document 1).
又、車載センサ洗浄装置のノズルとしては、先端収容部に流体を導くための導入流路を有するノズル本体と、前記先端収容部に収容保持された状態で導入流路から直角に屈曲した方向に流体を案内するための噴射パターン構成溝が形成された流体拡散チップとを備えたものがある（例えば、特許文献２参照）。 In addition, the nozzle of the in-vehicle sensor cleaning device includes a nozzle body having an introduction flow path for guiding a fluid to the tip accommodating portion, and a direction bent at a right angle from the introduction flow channel while being accommodated and held in the tip accommodating portion. Some include a fluid diffusion tip in which an ejection pattern constituting groove for guiding fluid is formed (see, for example, Patent Document 2).
しかしながら、上記のようにノズル本体に流体の噴射パターンを決定する噴射パターン構成溝が形成されているノズルでは、洗浄対象（レンズや保護ガラス等）のサイズ、即ち洗浄範囲が変更された場合等、ノズル本体に形成された噴射パターン構成溝の形状を変更する必要があり、導入流路等を有するノズル本体自体の大規模な変更が必要となる。 However, in the nozzle in which the ejection pattern constituting groove for determining the ejection pattern of the fluid is formed in the nozzle body as described above, the size of the object to be cleaned (lens, protective glass, etc.), that is, the cleaning range is changed, etc. It is necessary to change the shape of the ejection pattern constituting groove formed in the nozzle body, and a large-scale change of the nozzle body itself having the introduction flow path and the like is required.
又、上記のようにノズル本体の先端収容部に流体拡散チップを収容保持させてなるノズルでは、洗浄範囲が変更された場合でも流体拡散チップのみを変更すれば対応できるが、流体拡散チップを内部に収容保持させるためにノズル本体、ひいてはノズル全体が大型化してしまうことになる。 Further, in the nozzle in which the fluid diffusion tip is accommodated and held in the tip accommodating portion of the nozzle body as described above, even if the cleaning range is changed, it can be dealt with by changing only the fluid diffusion tip. Therefore, the size of the nozzle body, and thus the entire nozzle, is increased.
本発明は上記問題点を解消するためになされたものであって、その目的は、大型化を抑えながら洗浄範囲が変更された場合でも小規模な変更で対応することができる車載センサ洗浄装置を提供することにある。 The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an in-vehicle sensor cleaning device that can cope with small changes even when the cleaning range is changed while suppressing an increase in size. It is to provide.
上記課題を解決する車載センサ洗浄装置は、車両に搭載される車載センサのセンシング面に向けてノズルの噴射口から流体を噴射して、前記センシング面に付着した異物を除去するための車載センサ洗浄装置であって、前記ノズルは、第１端面側に流体を導入するための導入流路を有する基部材と、前記基部材の前記第１端面側に固定されるキャップ部材とを備え、前記キャップ部材における前記第１端面との対向面には、該第１端面と共に流体の流れる方向を前記導入流路から屈曲した方向に案内する案内路及び前記噴射口を形成して流体の噴射パターンを決定する噴射パターン構成溝が形成される。 An in-vehicle sensor cleaning device that solves the above-described problem is an in-vehicle sensor cleaning for ejecting fluid from an injection port of a nozzle toward a sensing surface of an in-vehicle sensor mounted on a vehicle to remove foreign matter attached to the sensing surface. The nozzle includes a base member having an introduction flow path for introducing a fluid to a first end face side, and a cap member fixed to the first end face side of the base member, the cap On the surface of the member facing the first end surface, a guide path for guiding the flow direction of the fluid in the direction bent from the introduction flow path and the injection port together with the first end surface are formed to determine the fluid injection pattern. A spray pattern constituting groove is formed.
同構成によれば、キャップ部材における基部材の第１端面との対向面には、該第１端面と共に流体の流れる方向を導入流路から屈曲した方向に案内する案内路及び噴射口を形成して流体の噴射パターンを決定する噴射パターン構成溝が形成されるため、洗浄範囲が変更された場合でもキャップ部材を変更するという小規模な変更で対応することができる。又、従来の流体拡散チップをノズル本体に収容保持させるようなノズルに比べて、大型化を抑えることができる。 According to this configuration, the guide member and the injection port are formed on the surface of the cap member that faces the first end surface of the base member, along with the first end surface, for guiding the fluid flowing direction in a direction bent from the introduction flow path. Therefore, even if the cleaning range is changed, it is possible to cope with a small change by changing the cap member. In addition, it is possible to suppress an increase in size as compared with a nozzle that accommodates and holds a conventional fluid diffusion chip in a nozzle body.
上記車載センサ洗浄装置において、前記基部材の前記第１端面と、前記キャップ部材の前記対向面には、前記案内路の外側を囲うように凹凸部が形成されることが好ましい。
同構成によれば、前記基部材の前記第１端面と、前記キャップ部材の前記対向面には、前記案内路の外側を囲うように凹凸部が形成されるため、凹凸部が形成されていないものに比べて、噴射口以外からの流体の漏れを抑えることができる。
In the in-vehicle sensor cleaning device, it is preferable that a concavo-convex portion is formed on the first end surface of the base member and the facing surface of the cap member so as to surround the outside of the guide path.
According to this configuration, since the uneven portion is formed on the first end surface of the base member and the facing surface of the cap member so as to surround the outside of the guide path, the uneven portion is not formed. Compared with a thing, the leakage of the fluid from those other than an injection port can be suppressed.
上記車載センサ洗浄装置において、前記噴射パターン構成溝の前記噴射口側には、前記第１端面との距離が前記導入流路側における前記第１端面との距離よりも近い一定に保たれて前記噴射口まで延びる絞り整流溝部が形成されることが好ましい。 In the in-vehicle sensor cleaning device, the ejection pattern side of the ejection pattern constituting groove is maintained at a constant distance from the first end surface to be closer to the first end surface on the introduction flow path side. It is preferable to form an aperture rectifying groove extending to the mouth.
同構成によれば、噴射パターン構成溝の噴射口側には、第１端面との距離が導入流路側における第１端面との距離よりも近い一定に保たれて噴射口まで延びる絞り整流溝部が形成されるため、噴射口まで第１端面との距離が変化するものに比べて、噴射口から噴射される前に流体の流れを安定させることができ流体の噴射範囲を安定させることができる。 According to this configuration, the restriction rectifying groove portion extending to the injection port is maintained on the injection port side of the injection pattern configuration groove so that the distance to the first end surface is kept constant closer than the distance to the first end surface on the introduction flow path side. Therefore, the flow of the fluid can be stabilized before being ejected from the ejection port, and the ejection range of the fluid can be stabilized, compared to the case where the distance from the first end surface changes to the ejection port.
本発明の車載センサ洗浄装置では、大型化を抑えながら洗浄範囲が変更された場合でも小規模な変更で対応することができる。 In the in-vehicle sensor cleaning device of the present invention, even when the cleaning range is changed while suppressing an increase in size, it is possible to cope with a small change.
以下、車載光学センサ洗浄装置が搭載された車両の一実施形態を図１〜図５に従って説明する。
図１に示すように、車両１の後方には、バックドア２が設けられ、バックドア２には、車載センサとしての車載カメラ５が設けられている。
Hereinafter, an embodiment of a vehicle equipped with an in-vehicle optical sensor cleaning device will be described with reference to FIGS.
As shown in FIG. 1, a back door 2 is provided behind the vehicle 1, and an in-vehicle camera 5 as an in-vehicle sensor is provided in the back door 2.
詳しくは、車載カメラ５は、図示しない撮像素子が内部に収容された略立方体形状の本体部５ａと該本体部５ａの一つの面に設けられたセンシング面としてのレンズ５ｂとを有し、バックドア２に移動不能に設けられている。 Specifically, the in-vehicle camera 5 includes a substantially cubic main body 5a in which an image sensor (not shown) is housed, and a lens 5b as a sensing surface provided on one surface of the main body 5a. The door 2 is provided so as not to move.
そして、車載カメラ５は、例えば、変速装置のシフトレバーＳＬをリバース位置に操作すると車両１の後方の撮像画像を車内のディスプレイＤＳＰに送信して表示させる。
又、車両１において、車載カメラ５の近傍位置には送給されてきた流体としての洗浄液を噴射口７ａから前記レンズ５ｂに向けて噴射するノズル７が設けられている。
For example, when the shift lever SL of the transmission is operated to the reverse position, the in-vehicle camera 5 transmits the captured image behind the vehicle 1 to the display DSP in the vehicle for display.
Further, in the vehicle 1, a nozzle 7 is provided in the vicinity of the in-vehicle camera 5 for injecting a cleaning liquid as a supplied fluid from the injection port 7 a toward the lens 5 b.
ノズル７は、車両１のエンジンルームに設けられた電動ポンプＰと配管８を介して接続されている。電動ポンプＰは、例えば、操作スイッチとしてのウォッシャスイッチＳＷを操作すると駆動して、エンジンルームに設けられたウォッシャタンクＴに貯留された洗浄液を送給する。 The nozzle 7 is connected to an electric pump P provided in the engine room of the vehicle 1 via a pipe 8. The electric pump P is driven when, for example, a washer switch SW as an operation switch is operated, and feeds the cleaning liquid stored in a washer tank T provided in the engine room.
図２〜図４に示すように、本実施形態のノズル７は、第１端面１１ａ側に洗浄液を導入するための導入流路１１ｂを有する基部材１１と、基部材１１の第１端面１１ａ側に固定されるキャップ部材１２とを備える。そして、キャップ部材１２における前記第１端面１１ａとの対向面には、該第１端面１１ａと共に流体の流れる方向を導入流路１１ｂから屈曲した方向に案内する案内路１３及び前記噴射口７ａを形成して、洗浄液の噴射パターンを決定する噴射パターン構成溝１２ａが形成されている。 As shown in FIGS. 2 to 4, the nozzle 7 of the present embodiment includes a base member 11 having an introduction channel 11 b for introducing a cleaning liquid to the first end surface 11 a side, and a first end surface 11 a side of the base member 11. And a cap member 12 fixed to the head. And the guide path 13 and the said injection port 7a which guide the direction which the fluid flows with the 1st end surface 11a to the direction bent from the introduction flow path 11b are formed in the surface facing the said 1st end surface 11a in the cap member 12. Thus, an ejection pattern constituting groove 12a for determining the ejection pattern of the cleaning liquid is formed.
詳しくは、基部材１１は、筒状の筒状部１１ｃと、該筒状部１１ｃの先端からその径方向外側に（フランジ状に）延びる板状部１１ｄとを備え、その筒状部１１ｃの内部が板状部１１ｄの第１端面１１ａ側に流体を導入するための導入流路１１ｂとされている。 Specifically, the base member 11 includes a cylindrical cylindrical portion 11c and a plate-shaped portion 11d extending outward (in a flange shape) from the tip of the cylindrical portion 11c in the radial direction. The inside is an introduction flow path 11b for introducing a fluid to the first end face 11a side of the plate-like portion 11d.
又、図４に示すように、第１端面１１ａには、（第１端面１１ａと噴射パターン構成溝１２ａとからなる）前記案内路１３となる部分の外側を囲うように嵌合凸部１１ｅが形成されている。嵌合凸部１１ｅは、筒状部１１ｃ（導入流路１１ｂ）の延びる方向から見て、略Ｕ字形状に形成されている。尚、嵌合凸部１１ｅの略Ｕ字形状の開口した位置は、前記噴射口７ａと対応した位置に配置されている。 Further, as shown in FIG. 4, the first end surface 11a has a fitting convex portion 11e so as to surround the outside of the portion serving as the guide path 13 (consisting of the first end surface 11a and the injection pattern constituting groove 12a). Is formed. The fitting convex part 11e is formed in the substantially U shape seeing from the direction where the cylindrical part 11c (introduction flow path 11b) extends. In addition, the substantially U-shaped opening position of the fitting convex portion 11e is disposed at a position corresponding to the injection port 7a.
又、第１端面１１ａには圧入凸部１１ｆが形成されている。圧入凸部１１ｆは、前記嵌合凸部１１ｅの外側であって、前記略Ｕ字形状の開口した側の側方（外側）に一対形成されている。 Further, a press-fit convex portion 11f is formed on the first end surface 11a. A pair of press-fitting convex portions 11f are formed on the outer side of the fitting convex portion 11e and on the side (outer side) of the substantially U-shaped opening side.
キャップ部材１２は、前記筒状部１１ｃ（導入流路１１ｂ）の延びる方向から見て前記第１端面１１ａと同形状の略板状に形成され、その第１端面１１ａとの対向面には、第１端面１１ａと共に前記案内路１３及び噴射口７ａを形成して、流体の噴射パターンを決定する噴射パターン構成溝１２ａが形成されている。本実施形態の噴射パターン構成溝１２ａは、前記導入流路１１ｂと対応した部分を基端として導入流路１１ｂから屈曲した直角方向の一方に延びて形成されている。又、図２に示すように、本実施形態の噴射パターン構成溝１２ａの前記噴射口７ａ側には、第１端面１１ａとの距離が導入流路１１ｂ側における第１端面１１ａとの距離よりも近い一定に保たれて噴射口７ａまで延びる絞り整流溝部１２ｂが形成されている。言い換えると、噴射パターン構成溝１２ａは、導入流路１１ｂ側である基端側と噴射口７ａ側である先端側との間に底の深さが徐々に浅くなる（第１端面１１ａとの距離が徐々に近くなる）傾斜部１２ｃを有し、該傾斜部１２ｃの先端から噴射口７ａまでは底の深さが浅い（第１端面１１ａとの距離が一定で近い）絞り整流溝部１２ｂとされている。又、図５に示すように、本実施形態の噴射パターン構成溝１２ａは、前記傾斜部１２ｃの基端側から噴射口７ａまで徐々に（板厚方向から見て）幅が広くなる形状に形成されている。 The cap member 12 is formed in a substantially plate shape having the same shape as the first end surface 11a when viewed from the extending direction of the cylindrical portion 11c (introduction flow channel 11b), and on the surface facing the first end surface 11a, The guide path 13 and the injection port 7a are formed together with the first end surface 11a, and an injection pattern constituting groove 12a for determining a fluid injection pattern is formed. The injection pattern constituting groove 12a of the present embodiment is formed to extend in one of the right-angled directions bent from the introduction flow path 11b with a portion corresponding to the introduction flow path 11b as a base end. Further, as shown in FIG. 2, the distance from the first end surface 11a on the side of the injection port 7a of the injection pattern constituting groove 12a of the present embodiment is larger than the distance from the first end surface 11a on the introduction flow passage 11b side. An aperture rectifying groove 12b is formed which is kept close and constant and extends to the injection port 7a. In other words, the depth of the bottom of the injection pattern constituting groove 12a gradually decreases between the base end side on the introduction flow path 11b side and the tip end side on the injection port 7a side (distance from the first end surface 11a). The narrowing portion 12c has an inclined portion 12c, and the bottom of the inclined portion 12c from the tip of the inclined portion 12c to the injection port 7a is shallow (the distance to the first end surface 11a is constant). ing. Further, as shown in FIG. 5, the injection pattern constituting groove 12a of the present embodiment is formed in a shape that gradually increases in width (as viewed from the thickness direction) from the base end side of the inclined portion 12c to the injection port 7a. Has been.
又、キャップ部材１２の前記第１端面１１ａとの対向面には、前記嵌合凸部１１ｅが嵌合される嵌合凹部１２ｄが形成されている。尚、本実施形態では、前記嵌合凸部１１ｅと前記嵌合凹部１２ｄが凹凸部としての凹凸嵌合部を構成している。 A fitting recess 12d into which the fitting projection 11e is fitted is formed on the surface of the cap member 12 facing the first end surface 11a. In the present embodiment, the fitting convex portion 11e and the fitting concave portion 12d constitute a concave-convex fitting portion as a concave-convex portion.
又、キャップ部材１２の前記第１端面１１ａとの対向面には、前記圧入凸部１１ｆが圧入される圧入凹部１２ｅが形成されている。そして、キャップ部材１２は、自身の圧入凹部１２ｅに基部材１１の圧入凸部１１ｆが圧入されることで、基部材１１に固定されている。 Further, a press-fitting recess 12e into which the press-fitting protrusion 11f is press-fitted is formed on the surface of the cap member 12 facing the first end surface 11a. The cap member 12 is fixed to the base member 11 by press-fitting the press-fitting convex portion 11f of the base member 11 into the press-fitting concave portion 12e.
次に、上記のように構成された車載センサ洗浄装置の作用について説明する。
ウォッシャスイッチＳＷが操作されると、電動ポンプＰが駆動されてウォッシャタンクＴに貯留された洗浄液がノズル７に送給される。ノズル７に送給された洗浄液は、導入流路１１ｂを通って第１端面１１ａ側に導入され、該第１端面１１ａ側に形成された案内路１３によって導入流路１１ｂから屈曲した方向に案内され、その先端である噴射口７ａから車載カメラ５のレンズ５ｂに噴射される。これにより、車載カメラ５のレンズ５ｂが洗浄される。
Next, the operation of the in-vehicle sensor cleaning device configured as described above will be described.
When the washer switch SW is operated, the electric pump P is driven to feed the cleaning liquid stored in the washer tank T to the nozzle 7. The cleaning liquid fed to the nozzle 7 is introduced to the first end face 11a side through the introduction flow path 11b and guided in a direction bent from the introduction flow path 11b by the guide path 13 formed on the first end face 11a side. Then, it is injected from the injection port 7a which is the tip thereof to the lens 5b of the in-vehicle camera 5. Thereby, the lens 5b of the vehicle-mounted camera 5 is washed.
次に、上記実施形態の特徴的な効果を以下に記載する。
（１）キャップ部材１２における基部材１１の第１端面１１ａとの対向面には、該第１端面１１ａと共に洗浄液の流れる方向を導入流路１１ｂから屈曲した方向に案内する案内路１３及び噴射口７ａを形成して、流体の噴射パターンを決定する噴射パターン構成溝１２ａが形成される。よって、洗浄対象（レンズ５ｂや保護ガラス等）のサイズ、即ち洗浄範囲が変更された場合でも、キャップ部材１２を（噴射パターン構成溝１２ａの形状が異なるキャップ部材に）変更するという小規模な変更で対応することができる。又、従来の流体拡散チップをノズル本体に収容保持させるようなノズルに比べて、大型化を抑えることができる。
Next, the characteristic effects of the above embodiment will be described below.
(1) On the surface of the cap member 12 facing the first end surface 11a of the base member 11, a guide path 13 and an injection port that guide the direction in which the cleaning liquid flows together with the first end surface 11a in a direction bent from the introduction channel 11b. 7a is formed, and an ejection pattern constituting groove 12a that determines an ejection pattern of the fluid is formed. Therefore, even when the size of the object to be cleaned (lens 5b, protective glass, etc.), that is, the cleaning range is changed, the cap member 12 is changed (to a cap member having a different shape of the ejection pattern constituting groove 12a). Can respond. In addition, it is possible to suppress an increase in size as compared with a nozzle that accommodates and holds a conventional fluid diffusion chip in a nozzle body.
（２）基部材１１の第１端面１１ａと、キャップ部材１２の対向面には、案内路１３の外側を囲うように凹凸嵌合部（嵌合凸部１１ｅ及び嵌合凹部１２ｄ）が形成されるため、凹凸嵌合部（嵌合凸部１１ｅ及び嵌合凹部１２ｄ）が形成されていないものに比べて、噴射口７ａ以外からの洗浄液の漏れを抑えることができる。 (2) The first end surface 11a of the base member 11 and the opposing surface of the cap member 12 are formed with concave and convex fitting portions (fitting convex portions 11e and fitting concave portions 12d) so as to surround the outside of the guide path 13. Therefore, it is possible to suppress the leakage of the cleaning liquid from other than the injection port 7a as compared with the case where the uneven fitting portion (the fitting convex portion 11e and the fitting concave portion 12d) is not formed.
（３）凹凸嵌合部は、基部材１１の第１端面１１ａに形成された嵌合凸部１１ｅと、キャップ部材１２の対向面に形成された嵌合凹部１２ｄとからなるため、凹凸嵌合部が第１端面１１ａ側の基部材１１（板状部１１ｄ）の厚みを厚くしてしまうことを避けることができる。即ち、基部材１１の第１端面１１ａ側に嵌合凹部を形成しようとすると嵌合凹部を形成するために基部材１１（板状部１１ｄ）の厚みを確保する必要があるが、キャップ部材１２は噴射パターン構成溝１２ａを形成するために元々厚みが確保されているため、キャップ部材１２側に嵌合凹部１２ｄを形成しても更に厚みを厚くする必要がない。 (3) Since the concave / convex fitting portion includes the fitting convex portion 11e formed on the first end surface 11a of the base member 11 and the fitting concave portion 12d formed on the opposing surface of the cap member 12, the concave / convex fitting It can be avoided that the portion increases the thickness of the base member 11 (plate-like portion 11d) on the first end face 11a side. That is, if it is going to form a fitting recessed part in the 1st end surface 11a side of the base member 11, in order to form a fitting recessed part, it is necessary to ensure the thickness of the base member 11 (plate-shaped part 11d), but cap member 12 Since the thickness is originally secured to form the injection pattern constituting groove 12a, it is not necessary to further increase the thickness even if the fitting recess 12d is formed on the cap member 12 side.
（４）噴射パターン構成溝１２ａの噴射口７ａ側には、第１端面１１ａとの距離が導入流路１１ｂ側における第１端面１１ａとの距離よりも近い一定に保たれて噴射口７ａまで延びる絞り整流溝部１２ｂが形成される。よって、噴射口７ａまで第１端面１１ａとの距離が変化する（絞り整流溝部１２ｂが形成されていない）ものに比べて、噴射口７ａから噴射される前に洗浄液の流れを安定させることができ洗浄液の噴射範囲を安定させることができる。その結果、車載カメラ５のレンズ５ｂを安定して良好に洗浄することができる。 (4) On the injection port 7a side of the injection pattern constituting groove 12a, the distance to the first end surface 11a is kept constant and closer to the first end surface 11a on the introduction flow channel 11b side and extends to the injection port 7a. A diaphragm rectifying groove 12b is formed. Therefore, the flow of the cleaning liquid can be stabilized before being ejected from the ejection port 7a, compared to the case where the distance from the first end surface 11a is changed to the ejection port 7a (the diaphragm rectifying groove portion 12b is not formed). The spraying range of the cleaning liquid can be stabilized. As a result, the lens 5b of the in-vehicle camera 5 can be washed stably and satisfactorily.
（５）キャップ部材１２は、自身の対向面に形成された圧入凹部１２ｅに基部材１１の第１端面１１ａに形成された圧入凸部１１ｆが圧入されることで、基部材１１に固定されるため、圧入固定させる構成が第１端面１１ａ側の基部材１１（板状部１１ｄ）の厚みを厚くしてしまうことを避けることができる。即ち、基部材１１の第１端面１１ａ側に圧入凹部を形成しようとすると圧入凹部を形成するために基部材１１（板状部１１ｄ）の厚みを確保する必要があるが、キャップ部材１２は噴射パターン構成溝１２ａを形成するために元々厚みが確保されているため、キャップ部材１２側に圧入凹部１２ｅを形成しても更に厚みを厚くする必要がない。 (5) The cap member 12 is fixed to the base member 11 by press-fitting the press-fitting convex portion 11f formed on the first end surface 11a of the base member 11 into the press-fitting concave portion 12e formed on the opposing surface thereof. Therefore, it is possible to avoid the press-fitting configuration from increasing the thickness of the base member 11 (plate-like portion 11d) on the first end surface 11a side. That is, when the press-fit recess is formed on the first end surface 11a side of the base member 11, it is necessary to secure the thickness of the base member 11 (plate-like portion 11d) in order to form the press-fit recess. Since the thickness is originally secured in order to form the pattern constituting groove 12a, it is not necessary to further increase the thickness even if the press-fit recess 12e is formed on the cap member 12 side.
上記実施形態は、以下のように変更してもよい。
・上記実施形態では、特に言及せず、噴射口７ａの位置における板状部１１ｄ及びキャップ部材１２は他の位置と同じ板厚であるように図示したが、これに限定されず、例えば、図６及び図７に示すように、噴射口７ａ及び絞り整流溝部１２ｂと対応した部分が薄肉で突出した薄肉部２１とされた形状としてもよい。
The above embodiment may be modified as follows.
In the above embodiment, the plate-like portion 11d and the cap member 12 at the position of the injection port 7a are illustrated as having the same plate thickness as other positions, but are not limited thereto, for example, 6 and FIG. 7, it is good also as the shape made into the thin part 21 which the part corresponding to the injection port 7a and the aperture rectification | straightening groove part 12b protruded thinly.
・上記実施形態では、噴射パターン構成溝１２ａの噴射口７ａ側には、第１端面１１ａとの距離が導入流路１１ｂ側における第１端面１１ａとの距離よりも近い一定に保たれて噴射口７ａまで延びる絞り整流溝部１２ｂが形成されるとしたが、これに限定されず、絞り整流溝部１２ｂが形成されていないノズル７としてもよい。 In the above embodiment, the spray pattern forming groove 12a has the spray port 7a on the side of the spray port 7a, the distance from the first end surface 11a being kept constant and closer to the first end surface 11a on the introduction channel 11b side. Although the diaphragm rectification groove 12b extending to 7a is formed, the present invention is not limited to this, and the nozzle 7 without the diaphragm rectification groove 12b may be used.
例えば、図８に示すように、傾斜部１２ｃの先端が噴射口７ａの一部を構成するノズルとしてもよい。
・上記実施形態では、基部材１１の第１端面１１ａと、キャップ部材１２の対向面には、案内路１３の外側を囲うように凹凸嵌合部（嵌合凸部１１ｅ及び嵌合凹部１２ｄ）が形成されるとしたが、これに限定されず、凹凸嵌合部（嵌合凸部１１ｅ及び嵌合凹部１２ｄ）が形成されていないノズルとしてもよい。又、凹凸嵌合部に換えて、溶着（超音波溶着等）される凹凸部に変更してもよい。又、例えば、別途シール部材を追加する等、他の構成で噴射口７ａ以外からの洗浄液の漏れを抑えるようにしてもよい。
For example, as shown in FIG. 8, the tip of the inclined portion 12c may be a nozzle that constitutes a part of the injection port 7a.
In the above-described embodiment, the first end surface 11a of the base member 11 and the opposing surface of the cap member 12 have a concave and convex fitting portion (a fitting convex portion 11e and a fitting concave portion 12d) so as to surround the outside of the guide path 13. However, the present invention is not limited to this, and a nozzle in which the concave and convex fitting portions (fitting convex portion 11e and fitting concave portion 12d) are not formed may be used. Moreover, it may replace with the uneven | corrugated fitting part and may change to the uneven | corrugated | grooved part welded (ultrasonic welding etc.). Further, for example, a sealing member may be added separately, and the leakage of the cleaning liquid from other than the injection port 7a may be suppressed by another configuration.
・上記実施形態では、凹凸嵌合部は、基部材１１の第１端面１１ａに形成された嵌合凸部１１ｅと、キャップ部材１２の対向面に形成された嵌合凹部１２ｄとからなるとしたが、逆に、第１端面１１ａに嵌合凹部を形成し、キャップ部材１２の対向面に嵌合凸部を形成してもよい。 -In the above-mentioned embodiment, although the uneven | corrugated fitting part consisted of the fitting convex part 11e formed in the 1st end surface 11a of the base member 11, and the fitting recessed part 12d formed in the opposing surface of the cap member 12. Conversely, a fitting recess may be formed on the first end surface 11a, and a fitting protrusion may be formed on the opposing surface of the cap member 12.
・上記実施形態では、キャップ部材１２は、自身の対向面に形成された圧入凹部１２ｅに基部材１１の第１端面１１ａに形成された圧入凸部１１ｆが圧入されることで、基部材１１に固定されるとしたが、これに限定されず、例えば、逆に、第１端面１１ａに圧入凹部を形成し、キャップ部材１２の対向面に圧入凸部を形成してもよい。又、接着剤にて固定する等、他の方法で基部材にキャップ部材を固定する構成としてもよい。 In the above-described embodiment, the cap member 12 is pressed into the base member 11 by press-fitting the press-fit convex portion 11f formed on the first end surface 11a of the base member 11 into the press-fit concave portion 12e formed on the opposing surface of the cap member 12. However, the present invention is not limited to this, and conversely, for example, a press-fit concave portion may be formed on the first end surface 11 a and a press-fit convex portion may be formed on the opposing surface of the cap member 12. Moreover, it is good also as a structure which fixes a cap member to a base member by other methods, such as fixing with an adhesive agent.
・上記実施形態では、流体として洗浄液を噴射するノズル７としたが、これに限定されず、空気や、空気と洗浄液が混合された流体を噴射するノズル（車載センサ洗浄装置）としてもよい。 In the above-described embodiment, the nozzle 7 that ejects the cleaning liquid as the fluid is used. However, the present invention is not limited to this, and a nozzle (vehicle-mounted sensor cleaning device) that ejects air or a fluid in which air and a cleaning liquid are mixed may be used.
・上記実施形態では、車載センサを車両１の後方を撮像する車載カメラ５としたが、これに限定されず、例えば車両１の他の方向を撮像する車載カメラとしてもよいし、撮像した画像に基づいてＣＰＵ等が雨量を認識するためのレインセンサ等としてもよく、それらのセンシング面に付着した異物を除去する車載センサ洗浄装置として具体化してもよい。 -In above-mentioned embodiment, although the vehicle-mounted sensor was set to the vehicle-mounted camera 5 which images the back of the vehicle 1, it is not limited to this, For example, it is good also as a vehicle-mounted camera which images the other direction of the vehicle 1, It may be a rain sensor or the like for the CPU or the like to recognize the rainfall based on it, or may be embodied as an in-vehicle sensor cleaning device that removes foreign matters adhering to those sensing surfaces.
・上記実施形態では、センシング面を車載カメラ５が有するレンズ５ｂとしたが、これに限定されず、車載カメラとは別体で構成されて車両（ガーニッシュ等）に直接固定される（ガラス製や樹脂製の）透明板をセンシング面としてもよく、該透明板に付着した異物を除去する車載センサ洗浄装置として具体化してもよい。 In the above embodiment, the in-vehicle camera 5 has the sensing surface with the lens 5b. However, the present invention is not limited to this, and is configured separately from the in-vehicle camera and directly fixed to the vehicle (garnish, etc.) A transparent plate (made of resin) may be used as the sensing surface, and may be embodied as an in-vehicle sensor cleaning device that removes foreign matter attached to the transparent plate.
上記各実施形態から把握できる技術的思想について、以下にその効果とともに記載する。
（イ）請求項２に記載の車載センサ洗浄装置において、前記凹凸部は、前記基部材の前記第１端面に形成された嵌合凸部と、前記キャップ部材の前記対向面に形成された嵌合凹部とからなることを特徴とする車載センサ洗浄装置。
The technical idea that can be grasped from the above embodiments will be described below together with the effects thereof.
(A) In the in-vehicle sensor cleaning device according to claim 2, the concavo-convex portion includes a fitting convex portion formed on the first end surface of the base member and a fitting formed on the facing surface of the cap member. An in-vehicle sensor cleaning device comprising a joint recess.
同構成によれば、凹凸部は、前記基部材の前記第１端面に形成された嵌合凸部と、前記キャップ部材の前記対向面に形成された嵌合凹部とからなる凹凸嵌合部とされるため、凹凸部（凹凸嵌合部）が第１端面側の基部材の厚みを厚くしてしまうことを避けることができる。即ち、基部材の第１端面側に嵌合凹部を形成しようとすると嵌合凹部を形成するために基部材の厚みを確保する必要があるが、キャップ部材は噴射パターン構成溝を形成するために元々厚みが確保されているため、キャップ部材側に嵌合凹部を形成しても更に厚みを厚くする必要がない。 According to the same configuration, the concavo-convex portion is a concavo-convex fitting portion including a fitting convex portion formed on the first end surface of the base member and a fitting concave portion formed on the facing surface of the cap member. Therefore, it is possible to avoid the uneven portion (uneven portion fitting portion) from increasing the thickness of the base member on the first end face side. That is, when the fitting recess is to be formed on the first end surface side of the base member, it is necessary to secure the thickness of the base member in order to form the fitting recess, but the cap member is used to form the injection pattern constituting groove. Since the thickness is originally secured, it is not necessary to further increase the thickness even if the fitting recess is formed on the cap member side.
（ロ）請求項１乃至３及び上記（イ）のいずれか１つに記載の車載センサ洗浄装置において、前記キャップ部材は、自身の前記対向面に形成された圧入凹部に前記基部材の前記第１端面に形成された圧入凸部が圧入されることで、前記基部材に固定されたことを特徴とする車載センサ洗浄装置。 (B) In the on-vehicle sensor cleaning device according to any one of claims 1 to 3 and (A), the cap member is inserted into the press-fitting recess formed on the opposing surface of the cap member. An in-vehicle sensor cleaning device, wherein a press-fitting convex portion formed on one end face is press-fitted and fixed to the base member.
同構成によれば、キャップ部材は、自身の前記対向面に形成された圧入凹部に前記基部材の前記第１端面に形成された圧入凸部が圧入されることで、前記基部材に固定されるため、圧入固定させる構成が第１端面側の基部材の厚みを厚くしてしまうことを避けることができる。即ち、基部材の第１端面側に圧入凹部を形成しようとすると圧入凹部を形成するために基部材の厚みを確保する必要があるが、キャップ部材は噴射パターン構成溝を形成するために元々厚みが確保されているため、キャップ部材側に圧入凹部を形成しても更に厚みを厚くする必要がない。 According to this configuration, the cap member is fixed to the base member by press-fitting the press-fit convex portion formed on the first end surface of the base member into the press-fit concave portion formed on the facing surface of the cap member. Therefore, it is possible to avoid the configuration in which the press-fitting is performed from increasing the thickness of the base member on the first end face side. That is, when the press-fit recess is formed on the first end surface side of the base member, it is necessary to secure the thickness of the base member in order to form the press-fit recess, but the cap member originally has a thickness to form the injection pattern constituting groove. Therefore, even if a press-fit recess is formed on the cap member side, it is not necessary to further increase the thickness.
１…車両、５…車載カメラ（車載センサ）、５ｂ…レンズ（センシング面）、７…ノズル、７ａ…噴射口、１１…基部材、１１ａ…第１端面、１１ｂ…導入流路、１１ｅ…凹凸嵌合部（凹凸部）の一部を構成する嵌合凸部、１２…キャップ部材、１２ａ…噴射パターン構成溝、１２ｂ…絞り整流溝部、１２ｄ…凹凸嵌合部（凹凸部）の一部を構成する嵌合凹部、１３…案内路。 DESCRIPTION OF SYMBOLS 1 ... Vehicle, 5 ... Vehicle-mounted camera (vehicle-mounted sensor), 5b ... Lens (sensing surface), 7 ... Nozzle, 7a ... Injection port, 11 ... Base member, 11a ... 1st end surface, 11b ... Introduction flow path, 11e ... Concavity and convexity A fitting convex part constituting a part of the fitting part (uneven part), 12 ... a cap member, 12a ... an injection pattern constituting groove, 12b ... an aperture rectifying groove part, 12d ... a part of the uneven fitting part (uneven part) Constructing concave part, 13... Guideway.
Claims (3)
前記ノズルは、
第１端面側に流体を導入するための導入流路を有する基部材と、
前記基部材の前記第１端面側に固定されるキャップ部材とを備え、
前記キャップ部材における前記第１端面との対向面には、該第１端面と共に流体の流れる方向を前記導入流路から屈曲した方向に案内する案内路及び前記噴射口を形成して流体の噴射パターンを決定する噴射パターン構成溝が形成されたことを特徴とする車載センサ洗浄装置。 An in-vehicle sensor cleaning device for ejecting a fluid from an injection port of a nozzle toward a sensing surface of an in-vehicle sensor mounted on a vehicle to remove foreign matter attached to the sensing surface,
The nozzle is
A base member having an introduction flow path for introducing a fluid to the first end face side;
A cap member fixed to the first end face side of the base member,
On the surface of the cap member facing the first end surface, a fluid injection pattern is formed by forming a guide path and the injection port for guiding the direction of fluid flow with the first end surface in a direction bent from the introduction flow path. An in-vehicle sensor cleaning device, characterized in that an injection pattern constituting groove for determining the pressure is formed.
前記基部材の前記第１端面と、前記キャップ部材の前記対向面には、前記案内路の外側を囲うように凹凸部が形成されたことを特徴とする車載センサ洗浄装置。 In the on-vehicle sensor cleaning device according to claim 1,
An in-vehicle sensor cleaning device, wherein an uneven portion is formed on the first end surface of the base member and the opposing surface of the cap member so as to surround the outside of the guide path.
前記噴射パターン構成溝の前記噴射口側には、前記第１端面との距離が前記導入流路側における前記第１端面との距離よりも近い一定に保たれて前記噴射口まで延びる絞り整流溝部が形成されたことを特徴とする車載センサ洗浄装置。 In the in-vehicle sensor cleaning device according to claim 1 or 2,
On the injection port side of the injection pattern constituting groove, there is a restriction rectification groove portion extending to the injection port while maintaining a constant distance from the first end surface closer to the first end surface on the introduction flow path side. An in-vehicle sensor cleaning device characterized by being formed.
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| US10328906B2 (en) | 2014-04-11 | 2019-06-25 | Dlhbowles, Inc. | Integrated automotive system, compact, low-profile nozzle assembly and compact fluidic circuit for cleaning a wide-angle image sensor's exterior surface |
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| US11458933B2 (en) | 2016-09-28 | 2022-10-04 | Valeo Systèmes d'Essuyage | Cleaning device intended for spraying at least one fluid onto a surface to be cleaned of a motor vehicle |
| JP7113816B2 (en) | 2016-09-28 | 2022-08-05 | ヴァレオ システム デシュヤージュ | Device for cleaning optical sensors of optical detection systems for motor vehicles |
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| JP2019531963A (en) * | 2016-09-28 | 2019-11-07 | ヴァレオ システム デシュヤージュＶａｌｅｏ Ｓｙｓｔｅｍｅｓ Ｄ’Ｅｓｓｕｙａｇｅ | Cleaning device for spraying at least one fluid onto a surface to be cleaned of a powered vehicle |
| CN109890669A (en) * | 2016-09-28 | 2019-06-14 | 法雷奥***公司 | For cleaning the device for being used for the optical sensor of Systems for optical inspection of motor vehicles |
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| JP2018072753A (en) * | 2016-11-04 | 2018-05-10 | 株式会社デンソーテン | Optical unit and mounting method of optical unit |
| JP2018144542A (en) * | 2017-03-02 | 2018-09-20 | 株式会社ホンダアクセス | Injection nozzle member |
| JP2021509874A (en) * | 2017-12-30 | 2021-04-08 | ディエルエイチ・ボウルズ・インコーポレイテッドｄｌｈＢＯＷＬＥＳ Ｉｎｃ． | Cleaning and drying system and method for automobile image sensor surface |
| CN113226872A (en) * | 2018-12-26 | 2021-08-06 | 法雷奥***公司 | Fluid nozzle for a cleaning device of an optical detection system |
| JP2022515490A (en) * | 2018-12-26 | 2022-02-18 | ヴァレオ システム デシュヤージュ | Fluid spray nozzle for cleaning equipment of optical detection system |
| JP7258152B2 (en) | 2018-12-26 | 2023-04-14 | ヴァレオ システム デシュヤージュ | Fluid spray nozzles for cleaning equipment of optical detection systems, cleaning equipment and automobiles |
| CN113226872B (en) * | 2018-12-26 | 2023-10-27 | 法雷奥***公司 | Fluid nozzle for cleaning device of optical detection system |
| CN112550228A (en) * | 2019-09-25 | 2021-03-26 | 大陆汽车有限责任公司 | Cleaning device for cleaning a surface of a sensor device |
| US11965969B2 (en) | 2019-09-25 | 2024-04-23 | Continental Automotive Gmbh | Cleaning apparatus for cleaning a surface of a sensor apparatus |
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