TWM529259U - Photoelectric switch - Google Patents

Description

Photoelectric switch

The present invention relates to a switch, and more particularly to a photoelectric switch having a simpler assembly process and lower cost.

Referring to FIG. 1 , a tilt switch disclosed in US Pat. No. 6,800,841 B1 includes a housing 11 , an upper cover 12 , an in-line module 13 , a light emitter 14 , a light receiver 15 , and a Roller 16.

By providing the embedded module 13 to provide a closed optical channel between the light emitter 14 and the light receiver 15, the light leakage phenomenon can be prevented, and the sensitivity of the switch action can be improved. However, the built-in mold is added. Group 13, also improved assembly procedures and costs.

Therefore, the purpose of the present invention is to provide a photoelectric switch that is simpler in assembly process and lower in cost.

Thus, the novel photoelectric switch comprises a light emitting member, a light receiving member, a rolling member, a first housing, and a second housing.

The light emitting member includes a transmitting portion.

The light receiving member includes a receiving portion disposed opposite to the emitting portion via a light path.

The rolling member is disposed between the light emitting member and the light receiving member and rolls between a light blocking position blocking the light path and a non-light blocking position not blocking the light path.

The first housing forms a first recess.

The second housing forms a second recess and defines a rolling chamber for accommodating the rolling member, an emission receiving chamber for accommodating the light emitting member, and a housing a receiving receiving chamber of the light receiving member, and two light through holes respectively located at opposite sides of the rolling chamber, the first groove and the second groove are opposite to define the rolling chamber, wherein an optical through hole communicates with the light receiving hole The rolling chamber and the emission receiving chamber, the other optical through hole communicates with the rolling chamber and the receiving housing chamber, thereby forming the light passage from the transmitting portion to the receiving portion.

Thus, the novel photoelectric switch comprises a light emitting member, a light receiving member, a rolling member, and a housing.

The light emitting member includes a transmitting portion that outputs an optical signal.

The light receiving member includes a receiving portion that receives the optical signal via an optical path.

The rolling member is disposed between the light emitting member and the light receiving member and rolls between a light blocking position for blocking transmission of the optical signal and a non-light blocking position for preventing transmission of the optical signal.

The housing includes a first housing forming a first recess, a second housing forming a second recess, a rolling chamber accommodating the rolling member and spheroidal, and accommodating the light emission a transmitting accommodating chamber, a receiving accommodating chamber accommodating the light receiving member, and two optical through holes respectively formed at opposite sides of the rolling chamber, wherein the first groove and the second groove are opposite to each other Defining the rolling chamber, wherein a light through hole communicates with the rolling chamber and the emission receiving chamber, and another optical through hole communicates with the rolling chamber and the receiving receiving chamber, thereby forming the portion from the emitting portion to the receiving portion Light path.

The utility model has the advantages that the first housing and the second housing are opposite to each other to form the rolling chamber, and the optical passage is formed with the optical through holes, since only the first housing is The mutual alignment of the second casing can achieve high sealing of the light passage, so that no additional inlay module is needed, and the assembly procedure is simple and the cost is low.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to Figures 2, 3 and 4, a first embodiment of the novel photoelectric switch comprises a light emitting member 2, a light receiving member 3, a rolling member 4, a first housing 5, and a second Housing 6.

The light emitting member 2 includes a transmitting portion 21 and a terminal portion 22.

The light receiving member 3 includes a receiving portion 31 disposed opposite to the emitting portion 21 via a light path, and a terminal portion 32.

The rolling member 4 is disposed between the light-emitting member 2 and the light-receiving member 3 and rolls between a light-shielding position blocking the light path and a non-light-shielding position not blocking the light path.

The first housing 5 defines a first recess 51 and has a first base wall 52, an inner surrounding wall 53, and an outer surrounding wall 54 surrounding the inner surrounding wall 53, the inner surrounding wall 53 and the The outer surrounding wall 54 extends from the first base wall 52 toward the second housing 6. The inner surrounding wall 53 cooperates with the first base wall 52 to define the first recess 51 and is adjacent to the bottom end. A first joint portion 531 having a convex shape is formed at the outer peripheral edge, and has two first through grooves 532 corresponding to the peripheral edges and recessed in an arc shape.

The second housing 6 defines a second recess 61 and defines a truncated cylindrical rolling chamber 71, a transmitting and receiving chamber 72, and a receiving and receiving chamber 73. And two optical through holes 74 respectively located at opposite sides of the rolling chamber 71.

The second housing 6 has a second base wall 62 and a surrounding wall 63. The surrounding wall 63 extends from the top surface of the second base wall 62 toward the first housing 5 and cooperates with the second base wall 62. The second groove 61 is defined, and a second joint portion 631 which is opposite to the first joint portion 531 is formed at a peripheral edge of the top end, and has two corresponding portions formed on the circumference. The second through grooves 632 are respectively located adjacent to the bottom of the column of the rolling chamber 71 and at the top of the cone and are recessed in a circular arc shape.

The first base wall 52, the inner surrounding wall 53, the outer surrounding wall 54, the second base wall 62 and the surrounding wall 63 cooperate to define the transmitting and receiving chamber 72 and the receiving and receiving chamber 73. The first through slots 532 respectively define the optical through holes 74 in cooperation with the second through slots 632.

The first groove 51 and the second groove 61 are opposite to each other to define the rolling chamber 71, and the inner surfaces of the first groove 51 and the second groove 61 are subjected to an antistatic treatment.

The rolling chamber 71 is for accommodating the rolling member 4 and is symmetric in shape on both sides of the mating surface of the first casing 5 and the second casing 6.

The transmitting accommodating chamber 72 is adjacent to the cone top of the rolling chamber 71 for accommodating the light emitting member 2, and the terminal portion 22 of the light emitting member 2 passes through the second housing 6.

The receiving accommodating chamber 73 is adjacent to the bottom of the column of the rolling chamber 71 for accommodating the light receiving member 3, and the terminal portion 32 of the light receiving member 3 passes through the second housing 6.

The light through holes 74 are respectively formed at the cone top of the rolling chamber 71 and at the bottom of the column. One light through hole 74 communicates with the rolling chamber 71 and the emission receiving chamber 72, and the other light through hole 74 communicates with the rolling chamber. And the receiving chamber 73, thereby forming the light path from the emitting portion 21 to the receiving portion 31, wherein the rolling member 4 blocks the light blocking position of the light path and does not block the light path. The scrolling between the shading positions enables the embodiment to achieve the operation of opening and closing the circuit. Since the operation of the photoelectric switch is familiar to the industry, it will not be described here.

When assembling, the rolling member 4 is placed in the rolling chamber 71, the light emitting member 2 is placed in the transmitting and receiving chamber 72, and the light receiving member 3 is placed in the receiving and receiving chamber 73, and then The first housing 5 and the second housing 6 are vertically aligned to complete the basic assembly.

Through the above description, the advantages of this embodiment can be summarized as follows:

1. The first housing 5 and the second housing 6 are designed to be opposite each other to form the rolling chamber 71, and the optical passage is formed with the optical through holes 74, since only the first housing 5 is used. The high sealing of the light path can be achieved by the mutual alignment with the second housing 6. Therefore, no additional in-line module is needed. Compared with the prior art, the embodiment has a simple assembly procedure and a relatively low cost. Low advantage.

2. By the antistatic treatment of the inner surface of the first housing 5 and the second housing 6 for defining the rolling chamber 71, the rolling can be avoided because the inner surface of the inner surface accumulates static electricity during use. Piece 4 cannot be smoothly rolled to prevent the sensitivity of the action from being lowered due to the influence of static electricity.

Referring to FIG. 5, FIG. 6, and FIG. 7, a second embodiment of the photoelectric switch of the present invention is similar to the first embodiment. The difference between the second embodiment and the first embodiment lies in :

The first housing 5 and the second housing 6 are opposite to each other.

The first housing 5 has a first engaging surface 55 facing the second housing 6, a first joint 531 disposed around the first recess 51 on the first mating surface 55, and four surrounding portions. The positioning hole 56 of the first joint portion 531 and the first joint portion 57 which is concave in the U shape by the outer circumference of the first mating surface 55.

The second housing 6 has a second mating surface 64 opposite to the first mating surface 55, and a second mating surface 64 is disposed around the second recess 61 and is coupled to the first joint portion 64. a second joint portion 631 that is opposed to each other in an uneven manner, a bottom wall 65 that is penetrated by one of the light through holes 74, and a bottom wall 65 that protrudes toward the first casing 5 around the light through hole 74. a convex ring 66, four positioning posts 67 surrounding the second joint portion 631 and respectively engaged with the corresponding positioning holes 56, and a U-shaped convex portion of the outer peripheral edge of the second mating surface 64 and the same The first mating portion 57 is opposite to the second mating portion 68.

The light-transmitting hole 74 communicating with the light-receiving chamber 72 and the partial rolling chamber 71 adjacent to the light-transmitting hole 74 are formed in the first casing 5, and the light that the receiving and accommodating chamber 73 communicates with A through hole 74, a portion of the rolling chamber 71 adjacent to the light through hole 74 is formed in the second casing 6, and the cross-sectional shape of the rolling chamber 71 on the opposing surface of the first casing 5 and the second casing 6 It is round.

The terminal portion 22 of the light-emitting device 2 is disposed through the first housing 5, and the terminal portion 32 of the light-receiving member 3 is disposed through the second housing 6.

It is to be noted that, in this embodiment, the light-emitting element 2 and the light-receiving member 3 are respectively inserted through the first casing 5 and the second casing 6, but the first part can also be designed. A housing 5 and the second housing 6 are recessed from below to form the emission receiving chamber 72 and the receiving housing chamber 73, and the light emitting member 2 and the light receiving member 3 are formed by the first housing The body 5 and the second casing 6 are inserted underneath, so that two recessed openings can be avoided from above, which is more beautiful; in addition, when assembling, the whole row of photoelectric switches can be made together, and the jig will be used. The entire row of the corresponding light-emitting member 2 and the light-receiving member 3 are inserted together to increase the assembly speed.

As such, the second embodiment can achieve the same purpose and effect as the first embodiment, and the first joint portion 531 is opposite to the second joint portion 631, and the first joint portion 57 and the first joint portion 631 are The second mating portions 68 are opposite to each other, and the bonding strength between the first casing 5 and the second casing 6 can be enhanced, and the light leakage can be reduced, and the sensitivity during the switching action can be improved.

Referring to FIG. 8, a third embodiment of the photoelectric switch of the present invention is similar to the first embodiment. The third embodiment differs from the first embodiment in that:

The light emitting portion 21 of the light emitting element 2 outputs an optical signal.

The receiving portion 31 of the light receiving member 3 receives the optical signal via the optical path.

The third embodiment further includes a housing 50 that includes the first housing 5 and the second housing 6.

The rolling chamber 71 is for accommodating the rolling member 4 and has a spherical shape, wherein the rolling member 4 is a light transmissive material.

In general use, the third embodiment is applied as a photoelectric vibration switch, and the optical signal outputted by the emitting portion 21 is transmitted through the light path to the light-transmitting rolling member 4, wherein a part of the light beam is refracted and then received by the receiving portion. Receiving 31, when the external force is applied to the embodiment, the rolling member 4 is vibrated to cause a change in the amount of refracted light, and the receiving portion 31 can determine whether there is vibration and subsequent processing when receiving the light signal with strong or weak change, due to subsequent vibration. The detection signal processing is familiar to the industry and will not be described here.

Thus, the third embodiment can achieve the same purpose and effect as the first embodiment described above, and by designing the rolling chamber 71 to be spherical, the rolling property of the rolling member 4 can be improved, and the vibration feeling can be increased. Sensitivity of measurement and switching actuation.

In summary, it is indeed possible to achieve the purpose of the novel.

However, the above is only the embodiment of the present invention, and when it is not possible to limit the scope of the present invention, all the simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

2‧‧‧Light emitting parts
21‧‧‧ Launching Department
22‧‧‧ Terminals
3‧‧‧Light receiving parts
31‧‧‧ Receiving Department
32‧‧‧ Terminals
4‧‧‧Rolling parts
50‧‧‧Shell
5‧‧‧First housing
51‧‧‧First groove
52‧‧‧First base wall
53‧‧‧ Inner wall
531‧‧‧ first joint
532‧‧‧First slot
54‧‧‧outer wall
55‧‧‧First mating face
56‧‧‧Positioning holes
57‧‧‧ first joint department
6‧‧‧Second housing
61‧‧‧second groove
62‧‧‧ second base wall
63‧‧‧ Surrounding wall
631‧‧‧Second junction
632‧‧‧Second trough
64‧‧‧ second mating face
65‧‧‧ bottom wall
66‧‧‧ convex ring
67‧‧‧Positioning column
68‧‧‧Second Joint Department
71‧‧‧ rolling room
72‧‧‧ Launching room
73‧‧‧Receiving accommodation room
74‧‧‧Light through hole

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: Figure 1 is an exploded perspective view of a conventional tilt switch; Figure 2 is a first 3 is an exploded perspective view of the first embodiment; FIG. 3 is a perspective sectional view of the first embodiment; FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. An exploded perspective view of a second embodiment; Fig. 6 is a perspective assembled view of the second embodiment; Fig. 7 is a cross-sectional view taken along line VII-VII of Fig. 6; and Fig. 8 is A cross-sectional view of a third embodiment of a novel photoelectric switch.

2‧‧‧Light emitting parts

21‧‧‧ Launching Department

22‧‧‧ Terminals

3‧‧‧Light receiving parts

32‧‧‧ Terminals

4‧‧‧Rolling parts

5‧‧‧First housing

6‧‧‧Second housing

61‧‧‧second groove

62‧‧‧ second base wall

63‧‧‧ Surrounding wall

631‧‧‧Second junction

632‧‧‧Second trough

71‧‧‧ rolling room

Claims (11)

A photoelectric switch comprising: a light emitting member comprising a transmitting portion; a light receiving member comprising a receiving portion disposed opposite to the emitting portion via a light passage; a rolling member disposed on the light emitting member and the light Between the receiving members, and rolling between a light blocking position blocking the light path and a non-shielding position not blocking the light path; a first housing forming a first recess; and a second housing forming a second a second recess, and opposite to the first housing, defines a rolling chamber for accommodating the rolling member, an emission receiving chamber for accommodating the light emitting member, and a receiving receiving for receiving the light receiving member a chamber, and two light through holes respectively located at opposite sides of the rolling chamber, the first groove and the second groove are opposite to define the rolling chamber, wherein an optical through hole communicates with the rolling chamber and the emission receiving And another light through hole communicates with the rolling chamber and the receiving and accommodating chamber, thereby forming the light passage from the transmitting portion to the receiving portion. The photoelectric switch according to claim 1, wherein the rolling chamber has a tapered column shape, and the receiving accommodating chamber is adjacent to the bottom of the rolling chamber, and the transmitting accommodating chamber is adjacent to the cone top of the rolling chamber, the rolling chamber The shape of both sides of the mating surface of the first housing and the second housing is symmetrical. The photoelectric switch of claim 2, wherein the first housing has a first base wall, an inner surrounding wall, and an outer surrounding wall surrounding the inner surrounding wall, the inner surrounding wall and the outer surrounding wall The first base wall extends toward the second casing, the inner surrounding wall cooperates with the first base wall to define the first groove, and has two first through grooves corresponding to the circumference. The second housing has a second base wall and a surrounding wall extending from the second base wall toward the first housing and cooperating with the second base wall to define the second recess and having Corresponding to the second through-groove formed on the circumference, the first base wall, the outer surrounding wall, the inner surrounding wall, the second base wall and the surrounding wall cooperate to define the emission receiving chamber and the receiving capacity The first through slots respectively define the optical through holes to cooperate with the second through slots. The photoelectric switch according to claim 1, wherein the light-transmitting hole communicated with the light-receiving chamber and a partial rolling chamber adjacent to the light-transmitting hole are formed in the first casing, and the receiving and receiving chamber is The optical through hole and the partial rolling chamber adjacent to the optical through hole are formed in the second housing. The photoelectric switch according to claim 4, wherein the rolling chamber has a tapered column shape, and the receiving accommodation chamber is adjacent to the bottom of the rolling chamber, the emission receiving chamber is adjacent to the cone top of the rolling chamber, the rolling chamber The cross-sectional shape of the first housing and the second housing is circular. The photoelectric switch of claim 5, wherein the second housing has a bottom wall penetrated by one of the light through holes, and a bottom wall protrudes from the light through hole toward the first housing The convex ring. The photoelectric switch of claim 5, wherein the first housing has a first facing surface facing the second housing, and a first portion disposed on the first facing surface around the first recess a joint portion, the second housing has a second mating surface that is opposite to the first mating surface, and a second mating surface is disposed around the second recess and is coupled to the first joint portion The second joint portion that is combined in an uneven manner. The photoelectric switch according to claim 5, wherein the light emitting member further includes a terminal portion that is disposed through the first housing, and the light receiving member further includes a terminal portion that passes through the second housing . The photoelectric switch according to claim 1, wherein an antistatic treatment is applied to inner surfaces of the first groove and the second groove. A photoelectric switch comprising: a light emitting member including a transmitting portion for outputting an optical signal; a light receiving member including a receiving portion for receiving the optical signal via an optical path; and a rolling member disposed on the light emitting member And the light receiving member, and rolling between a light blocking position for blocking transmission of the optical signal and a non-light blocking position for blocking transmission of the optical signal; and a housing including a first shell forming a first recess a second housing forming a second recess, a rolling chamber accommodating the rolling member and having a spherical shape, an emission receiving chamber for accommodating the light emitting member, and a receiving portion for accommodating the light receiving member Receiving an accommodating chamber, and two optical through holes respectively formed at opposite sides of the rolling chamber, the first recess and the second recess are opposite to define the rolling chamber, wherein an optical through hole communicates with the rolling chamber The light receiving chamber communicates with the rolling chamber and the receiving chamber, thereby forming the light path from the emitting portion to the receiving portion. The photoelectric switch of claim 10, wherein the rolling member is a light transmissive material.