CN213186074U - Reflective photoelectric switch - Google Patents
Reflective photoelectric switch Download PDFInfo
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- CN213186074U CN213186074U CN202021882549.5U CN202021882549U CN213186074U CN 213186074 U CN213186074 U CN 213186074U CN 202021882549 U CN202021882549 U CN 202021882549U CN 213186074 U CN213186074 U CN 213186074U
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Abstract
The application discloses a reflection-type photoelectric switch, relates to the technical field of photoelectric switches, and aims to solve the problem that the photoelectric switch is easily affected by raised dust in the prior art. The method mainly comprises the following steps: a transmitting component, a receiving component and a housing; a light blocking plate is arranged in a cavity of the shell, and the light blocking plate divides the cavity into a first cavity for accommodating the transmitting component and a second cavity for accommodating the receiving component; the emitting component is arranged in the first chamber; the receiving part is arranged in the second chamber; openings are formed in the parts, corresponding to the transmitting part and the receiving part, of the shell, a dustproof plate is detachably connected to the openings, and the openings can be covered by the dustproof plate; the light rays emitted by the emitting component can penetrate through the dust guard and are received by the receiving component after being reflected by the reflecting component. This application can reduce the interference of dust switch function, promotes product precision and life.
Description
Technical Field
The application relates to the technical field of photoelectric switches, in particular to a reflection-type photoelectric switch.
Background
The photoelectric switch is a short-term photoelectric proximity switch, and detects the existence of an object by utilizing the shielding or reflection of the detected object to a light beam and switching on a circuit through a synchronous circuit. At present, in practical application scenes, the detection distance of a reflection-type photoelectric switch is mostly within 10mm, the detection distance is limited, and only short-distance detection can be carried out. If photoelectric switch operational environment is outdoor, because outdoor raise dust is more, photoelectric switch's transmission mouth will be covered by the dust very fast, and photoelectric switch can't work on the one hand, causes losses such as the stop of equipment, and too much dust on the other hand can corrode photoelectric switch's surface, causes photoelectric switch's life to reduce.
Disclosure of Invention
In view of this, the present application provides a reflective photoelectric switch, and mainly aims to solve the problem that the photoelectric switch in the prior art is easily affected by dust.
The present application provides a reflective optoelectronic switch comprising: a transmitting component, a receiving component and a housing;
a light blocking plate is arranged in a cavity of the shell, and the light blocking plate divides the cavity into a first cavity for accommodating the transmitting component and a second cavity for accommodating the receiving component;
the emitting component is arranged in the first chamber; the receiving part is arranged in the second chamber;
openings are formed in the parts, corresponding to the transmitting part and the receiving part, of the shell, a dustproof plate is detachably connected to the openings, and the openings can be covered by the dustproof plate;
the light rays emitted by the emitting component can penetrate through the dust guard and are received by the receiving component after being reflected by the reflecting component.
Further, the transmitting component includes: an emitting terminal pin (1) and a light emitting diode; the emitting terminal pin (1) comprises a positive emitting pin and a negative emitting pin; the anode of the light emitting diode is connected with the anode emitting pin; the negative electrode emission pin is connected with the negative electrode of the light-emitting diode;
the light emitting diode is fixed in the first chamber (10), and the anode emission pin and the cathode emission pin extend out of a first side opening of the first chamber (10).
Further, the receiving part includes: a receiving terminal pin and a photoelectric integrated circuit; the receiving terminal pins comprise a positive receiving pin, a negative receiving pin and a switch grounding pin; the voltage input end of the photoelectric integrated circuit is connected with the positive electrode receiving pin; the negative electrode receiving pin is connected with a voltage output end of the optoelectronic integrated circuit; the switch grounding pin is connected with a voltage output end of the photoelectric integrated circuit;
the photoelectric integrated circuit is fixed in the second cavity, and the positive electrode receiving pin, the negative electrode receiving pin and the switch grounding pin extend out of a second side opening of the second cavity.
Furthermore, a first limit baffle is arranged at the edge of the first side opening; the first limiting baffle inclines towards the first cavity according to a preset angle.
Further, a second limit baffle is arranged at the edge of the second side opening; and the second limiting baffle inclines towards the second chamber according to a preset angle.
Further, a buckle is arranged on the dust guard, a through hole is arranged on the edge of the opening, and the through hole is matched with the buckle.
Furthermore, a baffle is arranged at the opening and below the dustproof plate, and a first light through hole is formed in the position, corresponding to the receiving component, of the baffle; and a second light through hole is formed in the position, corresponding to the emission part, of the baffle.
Furthermore, the voltage output end of the optoelectronic integrated circuit is connected with the base electrode of a triode, the collector electrode of the triode is connected with the negative electrode receiving pin, and the emitter electrode of the triode is connected with the switch grounding pin.
Furthermore, the dust guard is made of transparent materials.
By means of the technical scheme, the technical scheme provided by the embodiment of the application at least has the following advantages:
the application provides a reflection type photoelectric switch sets up the dust guard to reduce the interference of dust to the product characteristic, promote product precision and life.
The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
figure 1 shows a schematic body diagram of a reflective optoelectronic switch provided by an embodiment of the present application;
figure 2 illustrates a side view of a reflective optoelectronic switch provided by an embodiment of the present application;
fig. 3 is a schematic diagram illustrating a state of a dust guard of a reflective photoelectric switch according to an embodiment of the present application;
fig. 4 is a schematic diagram illustrating a dust-proof plate state of another reflective photoelectric switch provided in an embodiment of the present application;
fig. 5 shows a schematic diagram of an implementation principle of a reflective photoelectric switch provided in an embodiment of the present application.
Description of the drawings: 1-emitting end pin, 2-receiving end pin, 3-opening, 4-light blocking plate, 5-second chamber, 6-first limit baffle, 7-through hole, 8-dust guard, 9-buckle and 10-first chamber.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1-3, the present application provides a reflective optoelectronic switch comprising: a transmitting component, a receiving component and a housing;
a light blocking plate 4 is arranged in the cavity of the shell, and the light blocking plate 4 divides the cavity into a first cavity 10 for accommodating the emitting component and a second cavity 5 for accommodating the receiving component;
the emitting part is arranged in the first chamber 10; the receiving part is arranged in the second chamber 5;
the light emitted by the emitting part can penetrate through the dust-proof plate 8 and is reflected by the reflecting part to be received by the receiving part.
In order to ensure the effect of the photoelectric switch, the light blocking plate 4 is arranged in the cavity of the shell, and the light blocking plate 4 blocks the space between the first cavity 10 and the second cavity 5, so that the receiving component cannot directly receive the light emitted by the emitting component. The light blocking plate 4 is completely opaque and is made of the same material as the shell. In the first chamber 10 is arranged a launching member, which is fixedly or detachably connected opposite the opening 3. Similarly, in the second chamber 5 a value receiving member is present, which is fixedly or detachably connected on the opposite side of the opening 3.
As shown in fig. 4, the dust-proof plate 8 can be completely inserted into the opening 3 and is adapted in size. In order to increase the dust-proof effect, a rubber gasket may be further disposed on the outer ring of the dust-proof plate 8 or the inner ring of the opening 3 to improve the dust-proof effect.
As shown in fig. 5, the light of the emitting component passes through the dust-proof plate 8 and is reflected by the reflecting component, and then is received by the receiving component, so that the reflected light can be received to realize on-off control.
Further, a transmitting component comprising: the device comprises an emitting terminal pin 1, an emitting resistor and a light emitting diode; the emitting terminal pin 1 comprises an emitting terminal pin 1 and a light emitting diode; the emitting terminal pin 1 comprises a positive emitting pin and a negative emitting pin; the anode of the light emitting diode is connected with the anode emitting pin; the negative electrode emitting pin is connected with the negative electrode of the light emitting diode;
the light emitting diode is fixed in the first chamber 10, and the anode emission pin and the cathode emission pin extend out from the first side opening of the first chamber 10.
The positive electrode emitting pin in the emitting component is connected with input voltage, if the voltage is reduced through the sending resistor, the residual voltage drop can also meet the voltage drop requirement of the light emitting diode, the light emitting diode can emit light, and the photoelectric switch enters a working state.
Further, the receiving part includes: a receiving end pin 2 and a photoelectric integrated circuit; the receiving end pin 2 comprises a positive receiving pin, a negative receiving pin and a switch grounding pin; the voltage input end of the photoelectric integrated circuit is connected with the positive electrode receiving pin; the negative electrode receiving pin is connected with a voltage output end of the photoelectric integrated circuit; the switch grounding pin is connected with the voltage output end of the photoelectric integrated circuit;
the optoelectronic integrated circuit is fixed in the second chamber 5, and the positive electrode receiving pin, the negative electrode receiving pin and the switch grounding pin extend out of the second side opening of the second chamber 5.
After the light emitting diode emits light and is reflected by the emitting paper, a photoelectric converter in the photoelectric integrated circuit collects optical signals and outputs converted electric signals, and the electric signals are output through the negative electrode receiving pin.
Further, a first limit baffle 6 is arranged at the edge of the opening at the first side; the first limit baffle 6 is inclined at a preset angle into the first chamber 10.
The first limit baffle 6 is used for blocking the emission part, reducing the opening area of the first side opening and reducing dust entering the first chamber 10.
Furthermore, a second limit baffle is arranged at the edge of the second side opening; the second limit baffle is inclined towards the inside of the second chamber 5 according to a preset angle.
The second limit stop is similar to the first limit stop 6 and serves to stop the receiving part and reduce the opening area of the second side opening, reducing the entry of dust into the second chamber 5.
Further, set up buckle 9 on the dust guard 8, set up through-hole 7 at the opening border, through-hole 7 and buckle 9 phase-match.
Buckle 9 and through-hole 7 phase-match for dust guard 8 can firmly block at opening 3, reduces the risk that dust guard 8 drops because of vibrations.
Furthermore, a baffle plate is arranged at the opening 3 and below the dustproof plate 8, and a first light through hole is formed in the position, corresponding to the receiving component, of the baffle plate; the baffle is provided with a second light through hole corresponding to the position of the emitting component.
The transmitted light and the received light can only be transmitted through the first light through hole and the second light through hole, so that the receiving component is prevented from directly receiving the light emitted by the diode of the transmitting component.
Furthermore, the voltage output end of the photoelectric integrated circuit is connected with the base electrode of the triode, the collector electrode of the triode is connected with the negative electrode receiving pin, and the emitter electrode of the triode is connected with the switch grounding pin.
Before the voltage of the photoelectric contact circuit is output, an analog signal is converted into a digital signal through the triode, and the negative electrode receiving pin outputs high and low levels, so that the switching purpose of the photoelectric switch can be better realized.
Further, the dust-proof plate 8 is made of a transparent material.
The dust-proof plate 8 may be made of resin, glass, or the like, and is transparent and does not affect the light transmittance.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. A reflective optoelectronic switch, comprising: a transmitting component, a receiving component and a housing;
a light blocking plate (4) is arranged in the cavity of the shell, and the light blocking plate (4) divides the cavity into a first cavity (10) for accommodating the emitting component and a second cavity (5) for accommodating the receiving component;
the emitting means are arranged in the first chamber (10); the receiving means are arranged in the second chamber (5);
an opening (3) is formed in the part, corresponding to the transmitting part and the receiving part, of the shell, a dustproof plate (8) is detachably connected to the opening (3), and the opening (3) can be covered by the dustproof plate (8);
the light rays emitted by the emitting component can penetrate through the dust-proof plate (8) and are received by the receiving component after being reflected by the reflecting component.
2. The reflective optoelectronic switch of claim 1, wherein the emitter member comprises: an emitting terminal pin (1) and a light emitting diode; the emitting terminal pin (1) comprises a positive emitting pin and a negative emitting pin; the anode of the light emitting diode is connected with the anode emitting pin; the negative electrode emission pin is connected with the negative electrode of the light-emitting diode;
the light emitting diode is fixed in the first chamber (10), and the anode emission pin and the cathode emission pin extend out of a first side opening of the first chamber (10).
3. The reflective optoelectronic switch of claim 1, wherein the receiving member comprises: a receiving end pin (2) and a photoelectric integrated circuit; the receiving end pin (2) comprises a positive receiving pin, a negative receiving pin and a switch grounding pin; the voltage input end of the photoelectric integrated circuit is connected with the positive electrode receiving pin; the negative electrode receiving pin is connected with a voltage output end of the optoelectronic integrated circuit; the switch grounding pin is connected with a voltage output end of the photoelectric integrated circuit;
the optoelectronic integrated circuit is fixed in the second cavity (5), and the anode receiving pin, the cathode receiving pin and the switch grounding pin extend out of a second side opening of the second cavity (5).
4. A reflective optoelectronic switch according to claim 2, wherein the edge of the first side opening is provided with a first limit stop (6); the first limiting baffle (6) inclines towards the inside of the first chamber (10) according to a preset angle.
5. The reflective optoelectronic switch of claim 3, wherein the second side opening is provided with a second limit stop at its edge; the second limiting baffle inclines towards the inside of the second chamber (5) according to a preset angle.
6. A reflective optoelectronic switch according to claim 1, wherein a snap (9) is provided on the dust guard (8), and a through hole (7) is provided at the edge of the opening (3), the through hole (7) being adapted to the snap (9).
7. A reflective photoelectric switch according to claim 1, wherein a baffle is mounted at the opening under the dust-proof plate (8), and a first light through hole is formed at the position of the baffle corresponding to the receiving member; and a second light through hole is formed in the position, corresponding to the emission part, of the baffle.
8. The reflective optoelectronic switch of claim 3, wherein the voltage output terminal of the optoelectronic integrated circuit is connected to the base of a transistor, the collector of the transistor is connected to the negative receiving pin, and the emitter of the transistor is connected to the switch ground pin.
9. A reflective optoelectronic switch according to claim 1, wherein said dust guard (8) is made of a transparent material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021882549.5U CN213186074U (en) | 2020-09-01 | 2020-09-01 | Reflective photoelectric switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021882549.5U CN213186074U (en) | 2020-09-01 | 2020-09-01 | Reflective photoelectric switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213186074U true CN213186074U (en) | 2021-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021882549.5U Active CN213186074U (en) | 2020-09-01 | 2020-09-01 | Reflective photoelectric switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213186074U (en) |
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2020
- 2020-09-01 CN CN202021882549.5U patent/CN213186074U/en active Active
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