CN202259002U

CN202259002U - Light-leak preventive photoelectric switch

Info

Publication number: CN202259002U
Application number: CN2011203396587U
Authority: CN
Inventors: 周添铭
Original assignee: DARI SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: DARI SCIENCE AND TECHNOLOGY Co Ltd
Priority date: 2011-09-09
Filing date: 2011-09-09
Publication date: 2012-05-30
Anticipated expiration: 2021-09-09

Abstract

A light-leak preventive photoelectric switch comprises a casing base, a casing cover and a switch set, wherein the casing base and the casing cover are combined to each other, and the switch set is packaged in the space formed by the casing base and casing cover. The casing base is provided with a circular wall for defining a cavity and two notches extending from one end of the circular wall. The casing cover is provided with a casing member and two grooves extending from one end of the casing member, wherein the casing member is abutted with at least two sides of the circular wall in an overlapped manner corresponding to the two notches, and the grooves are butted with the notches to form a light path along a direction perpendicular to the axis. Besides, the switch set is provided with a light transmitter, a light receiver and a rolling part, wherein the light transmitter and the light receiver face two ends of the light path respectively, and the rolling part is held in the cavity of the casing base. By the aid of the closed light path which is defined by the circular wall and the casing member which are overlapped, convenience in assembly can be improved, light leak can be prevented, and flexibility in light action is improved effectively.

Description

The optoelectronic switch of anti-light leak

Technical field

The utility model relates to a kind of optoelectronic switch, particularly relates to a kind of optoelectronic switch that utilizes angle to change the anti-light leak that forms path or open circuit.

Background technology

Consulting Fig. 1, is example with a kind of optoelectronic switch 1, consists predominantly of an each other involutory shell block 11 with a cap 12, be installed in light emission part 13 and a light receiving piece 14 in this shell block 11 and this cap 12 relatively, reaches a ball 15.This shell block 11 has around an axis X and defines a ring wall 111 of an alcove 110, and is formed on this ring wall 111 and two breach 112 of this light emission part 13 and this light receiving piece 14 relatively respectively.This light emission part 13 is launched light through said breach 112 towards this light receiving piece 14.This ball 15 is contained in this alcove 110.

Whereby,, this ball 15 does the time spent when receiving external force, and can be in rolling process; Be positioned at the position of opening light path, form the conducting loop and be " ON " (unlatchings) state, or be positioned at the position of interdicting light path; Formation is opened circuit and is " OFF " (closing) state, reaches the effect of " ON/OFF " switch control.

Though this optoelectronic switch 1 can utilize the said breach 112 of undergauge to limit the light communication context that this light is launched part 13, yet, because said breach 112 has an open end; Therefore, can't effectively limit light towards these cap 12 direction scatterings, and the involutory seam crossing of this shell block 11 and this cap 12; Also in the zone of light scatter, so, not only can be because of the refraction that light scatter produced; Thereby influence communication effect, and have the situation of light leak, the shortcoming of the misoperation of being easy to generate is arranged.

Consult Fig. 2; I310952 number " ball switch " patent of invention of TaiWan, China case with the previous application of this case applicant is an example; Mainly comprise an each other involutory shell block 21 with a cap 22, be installed in this shell block 21 and light in this cap 22 relatively and launch part 23 and light receiving piece 24, be installed in an inner barrel 26 and an interior lid 27 that this light is launched

part

23 and 24 of this light receiving pieces and defined an optical channel 25, and be contained in a ball 28 of 25 of this optical channels.Whereby, light can only be advanced along the optical channel 25 of sealing, reach the effect of " ON/OFF " switch control.

Yet,,, promoted assembly program and cost, and the space of improvement still arranged because set up inner barrel 26 and two elements such as interior lid 27 grades though aforementioned enclosed optical channel 25 can reach restriction light communication context, and prevents the purpose of light leak.

Summary of the invention

The purpose of the utility model is to provide a kind of sensitivity can promote light action the time, and simplifies the optoelectronic switch of the anti-light leak of assembly program.

The optoelectronic switch of the anti-light leak of the utility model comprises a shell block, a cap, and a switches set.This shell block has around an axis and defines a circular ring wall of an alcove, and two breach that extended and be communicated with alcove along this axis direction by this circle ring wall one ora terminalis.This cap and this shell block are involutory; And have said relatively breach and with this circle ring wall external member adjoining each other with overlap mode of both sides at least; And by two short slots of this external member one ora terminalis along this axis direction extension, said short slot docks with said breach and forms an optical channel along vertical this axis direction.This switches set is encapsulated in this shell block and this cap; And have towards light emission part of optical channel one end and a light receiving piece towards the optical channel other end; And being contained in a rolling member in this shell block alcove, this rolling member is at an off position that stops light path and open between a via positions of light path and roll.

The optoelectronic switch of the anti-light leak of the utility model, the external member of this cap have two fins that form this short slot respectively and adjoin each other with overlap mode with these circle ring wall both sides.

The optoelectronic switch of the anti-light leak of the utility model; This cap also has a surrounding wall around this axis; Reach a wooden partition that seals this surrounding wall upper end and be formed with aforementioned fin, this shell block also has a carrier that links and seal this surrounding wall other end with this circle ring wall.

The optoelectronic switch of the anti-light leak of the utility model, this carrier have two grooves that are formed on both sides, and this surrounding wall has two protuberances that are formed on its inner surface relatively and fasten with aforementioned grooves respectively.

It is symmetrical centre and two retaining walls being extended to both sides by this circle ring wall that the optoelectronic switch of the anti-light leak of the utility model, this shell block also have respectively with said breach.

The optoelectronic switch of the anti-light leak of the utility model, this light emission part and this light receiving piece have a body that is embedded between this fin and this surrounding wall respectively, and pass the pair of terminal of this carrier.

The optoelectronic switch of the anti-light leak of the utility model, this light emission part and this light receiving piece have the end face towards this optical channel respectively, and are formed on this end face and lay respectively at a service portion of this optical channel.

The beneficial effect of the utility model is: utilize the circular ring wall of overlapping and the optical channel that external member defines sealing, not only can promote the convenience of assembling, and can prevent light leakage phenomena, the sensitivity when effectively promoting light action.

Description of drawings

Fig. 1 is a cutaway view, and general optoelectronic switch is described;

Fig. 2 is a cutaway view, and TaiWan, China patent I310952 case is described;

Fig. 3 is a three-dimensional exploded view, and a preferred embodiment of the utility model optoelectronic switch is described;

Fig. 4 is a part of cutaway view of cap in this preferred embodiment;

Fig. 5 is a cutaway view of this preferred embodiment;

Fig. 6 is the cutaway view along Fig. 5 straight line VI-VI.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is elaborated.

Consult Fig. 3, Fig. 4, and Fig. 5, a preferred embodiment of the optoelectronic switch of the anti-light leak of the utility model comprises a shell block 3, a cap 4, and a switches set 5.

This shell block 3 has a carrier 31, be formed on this carrier 31 and define the circular ring wall of an of alcove 320 32, two breach 33 that extended and is communicated with alcove along this axis X direction by these circle ring wall 32 1 ora terminalis around an axis X, and is symmetrical centre and by two retaining walls 34 of this circle ring wall 32 to the both sides extension with said breach 33 respectively.This carrier 31 has two grooves 311 that are formed on both sides.

This cap 4 is involutory with this shell block 3, and have a surrounding wall 41 around this axis X, seal these surrounding wall 41 upper ends a wooden partition 42, be formed on an external member 43 of 42 1 inner surfaces of this wooden partition and two short slots 44.This surrounding wall 41 has two protuberances 411 that are formed on its inner surface relatively and fasten with aforementioned grooves 311 respectively.This external member 43 has towards this breach 33 and two fins 431 that adjoin each other with overlap mode with these circle ring wall 32 both sides.Said short slot 44 is extended along this axis X direction by these fin 431 1 ora terminalis respectively, and docks and optical channel 40 of vertical this axis X direction formation in edge with said breach 33.

This switches set 5 is encapsulated in this shell block 3 and this cap 4, and has a light emission part 51 and a light receiving piece 52 towards optical channel 40 1 ends and the other end, and is contained in a rolling member 53 in these shell block 3 alcoves 320.This light emission part 51 and this light receiving piece 52 have a body 511,521 that is embedded in 41 of this fin 431 and this surrounding walls, the pair of terminal 512,522 that passes this carrier 31 respectively, towards an end face 513,523 of this optical channel 40, and be formed on this end face 513,523 and lay respectively at the service portion 514,524 of this optical channel 40.

During assembling, only need earlier body 511,521 with this light emission part 51 and this light receiving piece 52 to be embedded in 41 of fin 431 and the surrounding walls of this cap 4, again to should shell block 3 and this cap 4; Just can be in involutory process; Make aforementioned fin 431 with the mode of plugging together, be plugged on this circle ring wall 32 both sides, and adjoin each other with overlap mode with this circle ring wall 32 and this retaining wall 34; And this light emission part 51 can pass this carrier 31 with this terminal 512,522 respectively with this light receiving piece 52; Make this body 511,521 be sandwiched between 4 of carrier 31 and this caps of this shell block 3, when this cap 4 fastens with the groove 311 of aforementioned protuberance 411 and this carrier 31, promptly accomplish assembling.

Consult Fig. 5, Fig. 6, and the breach 33 and the short slot 44 of said butt joint can concern because of aforementioned fin 431 and the position that this circle ring wall 32, aforementioned retaining wall 34 overlap, and define the optical channel 40 of sealing.Whereby, the light of this light emission part 51 emissions can be limited in the optical channel 40, and this rolling member 53 is rolled between an off position that stops light path and a via positions opening light path, reaches " ON/OFF " effect controlled of switch.

Can know that according to the above the optoelectronic switch of the anti-light leak of the utility model has advantage and effect:

1, the utility model can utilize the circular ring wall 32 of overlapping and the optical channel 40 that fin 431 defines sealing, the light communication context is limited in this optical channel 40, and the utility model does not need extra element; And only need adopt involutory mode; Just can accomplish assembling, not only simplify element, promote the convenience of assembling; And can prevent light leakage phenomena, the sensitivity when effectively promoting light action.

2, because this ring wall is rounded; The retaining wall 34 of arranging in pairs or groups again and extending toward both sides by this circle ring wall 32; Not only can reduce the thickness of this circle ring wall 32 and said retaining wall 34; And can obtain required intensity through said retaining wall 34, make the utility model reduce whole weight and cost, effectively promote economic benefit.

Claims

1. the optoelectronic switch of an anti-light leak is characterized in that it comprises:

A shell block has around an axis and defines a circular ring wall of an alcove, and two breach that extended and be communicated with alcove along this axis direction by this circle ring wall one ora terminalis;

A cap; Involutory with this shell block; And have said relatively breach and with this circle ring wall external member adjoining each other with overlap mode of both sides at least; And by two short slots of this external member one ora terminalis along this axis direction extension, said short slot docks with said breach and forms an optical channel along vertical this axis direction; And

A switches set; Be encapsulated in this shell block and this cap; And have towards light emission part of optical channel one end and a light receiving piece towards the optical channel other end; And being contained in a rolling member in this shell block alcove, this rolling member is at an off position that stops light path and open between a via positions of light path and roll.

2. the optoelectronic switch of anti-light leak according to claim 1, it is characterized in that: the external member of this cap has two fins that form this short slot respectively and adjoin each other with overlap mode with these circle ring wall both sides.

3. the optoelectronic switch of anti-light leak according to claim 2; It is characterized in that: this cap also has a surrounding wall around this axis; Reach a wooden partition that seals this surrounding wall upper end and be formed with aforementioned fin, this shell block also has a carrier that links and seal this surrounding wall other end with this circle ring wall.

4. the optoelectronic switch of anti-light leak according to claim 3, it is characterized in that: this carrier has two grooves that are formed on both sides, and this surrounding wall has two protuberances that are formed on its inner surface relatively and fasten with aforementioned grooves respectively.

5. the optoelectronic switch of anti-light leak according to claim 3 is characterized in that: it is symmetrical centre and two retaining walls being extended to both sides by this circle ring wall that this shell block also has respectively with said breach.

6. based on the optoelectronic switch of the described anti-light leak of claim 3, it is characterized in that: this light emission part and this light receiving piece have a body that is embedded between this fin and this surrounding wall respectively, and pass the pair of terminal of this carrier.

7. the optoelectronic switch of anti-light leak according to claim 3 is characterized in that: this light emission part and this light receiving piece have the end face towards this optical channel respectively, and are formed on this end face and lay respectively at a service portion of this optical channel.