Photosensor including sensor circuit assembly with light emitter and receiver that face each other

Patent metadata

Field	Value
Publication number	US-2016290858-A1
Application number	US-201615137310-A
Country	US
Kind code	A1
Filing date	Apr 25, 2016
Priority date	Apr 24, 2013
Publication date	Oct 6, 2016
Grant date	—

Abstract

A photosensor is provided with a sensor circuit assembly. The sensor circuit assembly includes alight emitter, a light receiver, a light-emitter support, a light-receiver support, and a connecting part. The light emitter and the light receiver face each other. The light-emitter support extends from and supports the light emitter. The light-receiver support extends from and supports the light receiver. The connecting part connects one end of the light-emitter support with one end of the light-receiver support. The connecting part includes a seal and a connection terminal that protrudes from the seal. The connection terminal includes a first press-contact part, and a first pressure part that presses the first press-contact part in a press-contact direction.

First claim

1 - 20 . (canceled)

21 . A photosensor comprising: a sensor circuit assembly including: a light emitter and a light receiver that face each other;
a first support that extends from the light emitter and supports the light emitter; a second support that extends from the light receiver and supports the light receiver: and a connector that connects one end of the first support and one end of the second support; the connector comprising a seal and a first terminal that protrudes from the seal; wherein the first terminal comprises: a first contact part provided on a first portion of the first terminal away from the seal; and a joining part provided on a second portion of the first terminal that joins the first contact part and the seal, wherein the contact part provides contact with another component to be connected to the sensor circuit assembly, wherein:
the joining part of the first terminal protrudes outwards from the seal on one side of the sensor circuit assembly,
the joining part comprises a joint that joins the contact part and the seal at a third portion of the first terminal at an end of a protrusion where the joining part protrudes outwards from the seal; and
the first terminal curves at the joint.

22 . The photosensor according to claim 21 , wherein the portion of the first terminal on which the first contact part is provided comprises a first contact pressing part of the first terminal located at the third portion between the first portion and the second portion, the first contact pressing part pressing the first contact part in a press-contact direction.

23 . The photosensor according to claim 22 , wherein the first contact pressing part of the first terminal is one portion of an edge face of the first terminal and has a same sheet thickness of the first terminal.

24 . The photosensor according to claim 22 , further comprising:
a first wire that connects to the sensor circuit assembly; and the first contact part of the first terminal contacts the first wire along the press-contact direction.

25 . The photosensor according to claim 24 , further comprising a holder that supports the first wire, the holder comprising:
a first wire housing that envelopes the first wire; and a first terminal housing that envelopes the first terminal; wherein
the first wire is pressed into contact with the first terminal within the first wire housing.

26 . The photosensor according to claim 25 , wherein
the first contact part of the first terminal includes a slit, the first terminal housing includes a protrusion, the protrusion protrudes from a bottom of the first terminal housing toward the slit, and the bottom of the first terminal housing faces a tip end of the first terminal when first terminal housing houses the first terminal.

27 . The photosensor according to claim 25 , wherein
the holder further comprises a catch that locks onto the sensor circuit assembly; and the catch locks onto the sensor circuit assembly when the first terminal is pressed into contact with the first wire.

28 . The photosensor according to claim 24 , further comprising:
a second wire configured to connect to the sensor circuit assembly; the connector further includes a second terminal that protrudes from the seal; and the second terminal is pressed into contact with the second wire in the press-contact direction.

29 . The photosensor according to claim 28 , wherein the second terminal further comprises a second contact part, and a second contact pressing part that presses the second contact part in the press-contact direction.

30 . The photosensor according to claim 28 , wherein
the seal includes a first side and a second side positioned opposite to each other; the first terminal and the second terminal are on the first side; and the second side lacks a connection terminal.

31 . The photosensor according to claim 28 , further comprising:
a holder that supports the first wire and the second wire, the holder comprising:
a first wire housing that envelopes the first wire;
a second wire housing that envelopes the second wire;
a first terminal housing that envelopes the first terminal; and
a second terminal housing that envelopes the second terminal, wherein
the first wire housing and the second wire housing are mutually partitioned
the first wire press contacts the first terminal within the first wire housing; and
the second wire press contacts the second terminal within the second wire housing.

32 . The photosensor according to claim 28 , further comprising:
a cable including the first wire, the second wire, and an outer coating that covers the first wire and the second wire; and a holder that supports the cable; wherein
the holder includes a borehole that passes therethrough;
an inner surface of the borehole has at least three protrusions;
the cable passes through the borehole; and
an adhesive fills space between the inner surface of the borehole and the cable.

33 . The photosensor according to claim 32 , wherein
the borehole includes a first bore section and a second bore section; the first bore section and the second bore section are side by side in the axial direction of the borehole; the second bore section includes an end section of the borehole; and the inner diameter of the second bore section is larger than the inner diameter of the first bore section.

34 . The photosensor according to claim 32 , wherein
the holder includes a positioning section; and the positioning section overlaps a portion of the borehole in the direction wherein the borehole passes through the holder.

35 . The photosensor according to claim 34 , wherein
the holder includes a wall that overlaps a portion of the borehole; the wall includes a first wire housing that envelopes the first wire; and a second wire housing that envelopes the second wire; and the positioning section comprises one portion of the wall.

36 . The photosensor according to claim 21 , wherein
the sensor circuit assembly includes a light-emitter lens that covers the light emitter, and a light-receiver lens that covers the light receiver; and the light-receiver lens and the light-emitter lens have different shapes.

37 . The photosensor according to claim 24 , further comprising:
a cable including the first wire; a holder that supports the sensor circuit assembly and the cable; and a main case having an internal space with an opening that encloses the sensor circuit assembly and the holder, wherein: the holder includes a borehole in the press-contact direction, the cable passes through the borehole, and the holder includes a first wire housing that envelopes the first wire; a first terminal housing that envelopes the first terminal, the first terminal housing having a long axis extending in a direction that intersects the press-contact direction and that opens in a direction opposite the press-contact direction, the first terminal housing intersects the first wire housing and opens in the direction opposite the press-contact direction, the sensor circuit assembly is mounted on the top of the holder, and a tip end of the first terminal faces in the press-contact direction; the first contact part of the first terminal pierces the first wire from above in the first wire housing and thereby pressure contacts the first wire; the internal space opening in the main case faces in the press-contact direction; and the main case is mounted onto the top of the holder.

38 . The photosensor according to claim 21 ,

Assignees

• Omron Tateisi Electronics Co

Inventors

• Miyata Tsuyoshi
• Nakajima Jun
• Miyashita Seiji
• Imai Kiyoshi
• Ohtsuki Kazuya

Classifications

• H01R4/2425

  Flat plates, e.g. multi-layered flat plates · CPC title

• G01J1/42 Primary

  using electric radiation detectors (optical or mechanical part G01J1/04; by comparison with a reference light or electric value G01J1/10) · CPC title

• G01J1/08

  Arrangements of light sources specially adapted for photometry {standard sources, also using luminescent or radioactive material} · CPC title

• H10F39/12

  Image sensors · CPC title

• H10F77/933 Primary

  for devices having potential barriers · CPC title