CN205666813U - Retro -reflection formula photoelectric switch - Google Patents
Retro -reflection formula photoelectric switch Download PDFInfo
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- CN205666813U CN205666813U CN201620505891.0U CN201620505891U CN205666813U CN 205666813 U CN205666813 U CN 205666813U CN 201620505891 U CN201620505891 U CN 201620505891U CN 205666813 U CN205666813 U CN 205666813U
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Abstract
The utility model discloses a retro -reflection formula photoelectric switch, including switch shell, photic ware that the switch shell internal fixation has the PCB subassembly, is used for to send the illuminator that detects light and is used for receive reflection board light beam. The signal output circuit that PCB subassembly system has the luminous circuit that is connected with the illuminator and is connected with the photic ware. The illuminator sends detection light and is responded to by the photic ware after the reflection returns to through the signal output circuit output signal of telecommunication. This retro -reflection formula photoelectric switch with illuminator and photic ware integration in an organic whole, can effectively improve detection distance and detect the precision, puies forward the high anti jamming ability, has advantages such as detection distance is far away, the interference killing feature is strong, response speed is fast.
Description
Technical field
This utility model relates to a kind of photoelectric sensor, specifically a kind of retroreflecting formula photoswitch.
Background technology
Photoelectric sensor belong to non-contact type detection sensor, its detecting distance is relatively wide, for detect object presence or absence,
Distance and character etc., therefore it is widely used in industrial automation arrangement field.
Photoelectric sensor is to utilize detected material block light beam or reflect, and by synchronization loop gating circuit, thus examines
Survey with presence or absence of object.Object is not limited to metal, and all objects that can reflect light all can be detected.Photoelectric sensor will input electricity
Stream is converted to optical signal injection on emitter, and receptor further according to the power of the light received or enters with or without to target object
Row detection.
Existing photoelectric sensor is made up of emitter, receptor and testing circuit three part.Quasi goal is sent out by emitter
Irradiating light beam, the light beam of transmitting is typically derived from semiconductor light source, light emitting diode, laser diode and infrared-emitting diode,
Light beam is launched incessantly, or changes pulse width, and light beam radiation intensity pulsed is in the transmission through repeatedly selecting
Select, the most indirectly run towards target.Receptor is made up of, at receptor photodiode or phototriode, light cell
Above, equipped with optical element such as lens and aperture etc., face is testing circuit behind, and it can leach useful signal and application should
Signal.Additionally, also have triangle reflecting plate and optical fibers in the structural detail of photoelectric sensor, triangle reflecting plate is sound construction
Discharger, make light beam return from reflecting plate exactly, it can change the angle of departure with the scope of optical axis 0 to 25, makes
Light beam almost launches line from one, after reflection, or returns from this root reflected ray.
Presence or absence, distance and the character etc. of object can be detected by above-mentioned photoelectric sensor accurately, but structure is relatively
For complexity, and lacking the setting of protection circuit, reliability is the highest, and service life, compared with short and volume big, occupies relatively the when of use
Many spaces, use inconvenience.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned prior art present situation, and provides a kind of retroreflecting
Formula photoswitch, is integrated in one luminous organ and light-receiving device, and luminous organ emits beam and reflexes to light-receiving device, and light-receiving device detects
After optical signal, select current signal and export.
The technical scheme that the above-mentioned technical problem of this utility model solution is used is: a kind of retroreflecting formula photoswitch,
Including switch case, it is fixed with PCB assembly in switch case, for sending the luminous organ of detection light and for receiving reflecting plate
The light-receiving device of reflection light.PCB assembly is shaped with the illuminating circuit being connected with luminous organ and the signal being connected with light-receiving device
Output circuit.Luminous organ sends after detection light is reflected recurrence and is sensed by light-receiving device, and by signal output apparatus output electricity
Signal.
For optimizing technique scheme, this utility model also includes the technical scheme of following improvement.
Above-mentioned luminous organ is light emitting diode.Illuminating circuit includes Power Entry Module, rectifying and voltage-stabilizing module and luminescence
The optical modulator module that device is connected.
Above-mentioned light-receiving device is phototriode.Signal output apparatus includes that the signal being connected with light-receiving device amplifies mould
Block, modulation circuit module, clocked logic module and signal output module.
Above-mentioned Power Entry Module includes power input interface.Rectifying and voltage-stabilizing module includes power supply chip.Power supply chip
It is provided with Vout interface, Vin interface and GND interface.Vout interface with GND interface respectively two ends with the first electric capacity be connected, and
And GND interface is connected with earth terminal.Vin interface with GND interface respectively two ends with the second electric capacity be connected, and at the second electric capacity
The output branch road that two ends are parallel with the first resistance, the first diode and out splice going splice are constituted.
Above-mentioned PCB assembly includes processing chip.Optical modulator module includes light modulation audion.The collection of light modulation audion
Electrode is connected with out splice going splice, and after base series luminous organ, connection processes the GP0 interface of chip.
The colelctor electrode of above-mentioned light-receiving device and base stage connect power input interface by the second resistance, connect at base terminal
The polar capacitor on ground.The emitter stage of light-receiving device processes chip by variable resistance and the 3rd electric capacity and amplifying triode connection
GP2 interface.
Above-mentioned switch case is square plastic casing.Be shaped with in the inside of switch case installation PCB assembly, luminous organ and
The cavity of light-receiving device.It is provided with on the top of cavity and fixes the PCB fixed plate being connected with PCB assembly.Luminous organ and light-receiving device are fixed
Side at PCB assembly.The sidewall of switch case is shaped with the fenestra of transmitted light, is installed with filter lens at fenestra.
Being provided with light source fixing part in above-mentioned cavity, light source fixing part is arranged between filter lens and PCB assembly, at light source
The inside of fixture is shaped with two energy the first through hole by light and the second through hole.Luminous organ is fixed on the interior of the first through hole
End.Light-receiving device is fixed on the inner of the second through hole.
The outer end of above-mentioned first through hole is installed with the first collecting lens, is shaped with light beam at the middle part of the first through hole
Hole.The outer end of the second through hole is installed with the second light transparent lens, is shaped with the second bundle unthreaded hole at the middle part of the second through hole.Light source is solid
The both sides of locking member are shaped with fixes the ladder bayonet socket being connected with switch case inwall.
The top of above-mentioned switch case is provided with light guide plate and the adjusting knob being connected with PCB assembly.Under light guide plate
Side is provided with power supply indicator and working station indicator, and power supply indicator is connected with power interface by power branch.Work
Status indicator lamp is connected with the emitter stage of display lamp audion, and the base stage connection of display lamp audion processes the GP5 of chip and connects
Mouthful, colelctor electrode connects power supply.
Compared with prior art, retroreflecting formula photoswitch of the present utility model, luminous organ and light-receiving device are integrated in
Integrally, luminous organ sends after detection light is reflected recurrence and is sensed by light-receiving device, and exports the signal of telecommunication by signal output apparatus,
Can be effectively improved detecting distance and accuracy of detection, improve capacity of resisting disturbance, have that detecting distance is remote, capacity of resisting disturbance strong, ring
The advantage such as answer speed fast.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment.
Fig. 2 is the plan structure schematic diagram of Fig. 1.
Fig. 3 is the cross-sectional view of Fig. 1.
Fig. 4 is the cross-sectional view of another kind of embodiment.
Fig. 5 is the electrical block diagram of power pack in PCB assembly.
Fig. 6 is the electrical block diagram of PCB assembly.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Fig. 1 to Fig. 6 show structural representation of the present utility model.
Reference therein is: switch case 1, cavity 11, filter lens 12, PCB assembly 2, PCB fixed plate 21, luminescence
Device 3, light-receiving device 4, light source fixing part the 5, first through hole the 51, second through hole the 52, first collecting lens 53, first restraint unthreaded hole 54, the
Two light transparent lens 55, second restraint unthreaded holes 56, ladder bayonet socket 57, light guide plate 6, adjusting knob 7, power supply chip the 81, first electric capacity 82,
Second electric capacity the 83, first resistance the 84, first diode 85, out splice going splice 86, process chip 87, light modulation audion 88, polarity
Electric capacity 89, variable resistance the 91, the 3rd electric capacity 92, amplifying triode 93, power supply indicator 94, working station indicator 95, instruction
Lamp audion 96.
As shown in Figures 1 to 3, a kind of retroreflecting formula photoswitch of the present utility model, including switch case 1, at switch
PCB assembly 2 it is fixed with, for sending the luminous organ 3 of detection light and returning the light-receiving device of light for receiving reflection in housing 1
4。
PCB assembly 2 is shaped with the illuminating circuit being connected with luminous organ 3 and the signal output electricity being connected with light-receiving device 4
Road.Luminous organ 3 sends after detection light is reflected recurrence and is sensed by light-receiving device 4, and exports the signal of telecommunication by signal output apparatus.
In this utility model, luminous organ 3 is to be connected with optical modulator module to be connected to light emitting diode, it is preferred to use wavelength is
The infrarede emitting diode of 600nm to 900nm.Using light source wave band in the present embodiment is the infrarede emitting diode of 880nm.Send out
The light that light device 3 sends is returned through outside baffle reflection, then is detected by light-receiving device 4 sensing.
Light-receiving device 4 is the phototriode being connected with signal amplification module.If having barrier at retroreflecting formula light
Stopping light between electric switch and reflecting plate, light-receiving device 4 just can detect barrier.
Illuminating circuit includes the optical modulator module that Power Entry Module, rectifying and voltage-stabilizing module are connected with luminous organ 3, can
So that power supply is carried out rectifying and voltage-stabilizing, it is achieved the luminescence of luminous organ 3 and modulation light.
Signal amplification module that signal output apparatus includes being connected with light-receiving device 4, modulation circuit module, clocked logic mould
Block and signal output module.Light-receiving device 4 receives light, and converts optical signals into the signal of telecommunication by signal output apparatus and export.
Power Entry Module includes power input interface.Rectifying and voltage-stabilizing module includes power supply chip 81.Power supply chip 81 sets
There are Vout interface, Vin interface and GND interface.Vout interface with GND interface respectively two ends with the first electric capacity 82 be connected, and
And GND interface is connected with earth terminal.Vin interface with GND interface respectively two ends with the second electric capacity 83 be connected, and at the second electricity
The two ends holding 83 are parallel with first resistance the 84, first diode 85 and the output branch road of out splice going splice 86 composition.
PCB assembly 2 includes processing chip 87.Optical modulator module includes light modulation audion 88.Light modulation audion 88
Colelctor electrode is connected with out splice going splice 86, and after base series luminous organ 3, connection processes the GP0 interface of chip 87.
The colelctor electrode of light-receiving device 4 and base stage connect power input interface by the second resistance, and connecting at base terminal has ground connection
Polar capacitor 89.The emitter stage of light-receiving device 4 is processed by variable resistance 91 and the 3rd electric capacity 92 and amplifying triode 93 connection
The GP2 interface of chip 87.
Switch case 1 is square plastic casing, is preferably dimensioned to be 20mm*30mm.It is shaped with installation in the inside of switch case 1
The cavity 11 of PCB assembly 2, luminous organ 3 and light-receiving device 4.
The PCB fixed plate 21 that be connected fixing with PCB assembly 2 it is provided with on the top of cavity 11.PCB fixed plate 21 and switch housing
The inwall of body 1 is connected, and the PCB assembly 2 that is fixed.
It is shaped with aperture, power line and data wire in switch case 1 to be connected with PCB assembly 2 by this aperture.
Luminous organ 3 and light-receiving device 4 are fixed on the side of PCB assembly 2.The sidewall of switch case 1 is shaped with the window of transmitted light
Hole, is installed with filter lens 12 at fenestra.The light that luminous organ 3 sends penetrates through fenestra and filter lens 12, then through outside
After baffle reflection, inject light-receiving device 4 through fenestra and filter lens 12.Filter lens 12 is used for filtering visible ray with the light of other wavelength
Interference to light-receiving device 4, it is preferred to use infrared penetrate PC plastics.
Being provided with light source fixing part 5 in cavity 11, light source fixing part 5 is arranged between filter lens 12 and PCB assembly 2, at light
The inside of source fixture 5 is shaped with two energy the first through hole 51 and the second through hole 52 by light.Luminous organ 3 is fixed on first and leads to
The inner in hole 51.Light-receiving device 4 is fixed on the inner of the second through hole 52.
The outer end of the first through hole 51 is installed with the first collecting lens 53, is shaped with the first bundle at the middle part of the first through hole 51
Unthreaded hole 54.The outer end of the second through hole 52 is installed with the second light transparent lens 55, is shaped with the second bundle at the middle part of the second through hole 52
Unthreaded hole 56.
First collecting lens 53 realizes the wide-angle light beam of luminous organ 3 and becomes low-angle light beam.Second light transparent lens 55 is right
Light has spotlight effect, improves the detection sensitivity of light-receiving device 4.
Light source fixing part 5 is used for fixing luminous organ 3 and light-receiving device 4, and by the first bundle unthreaded hole 54 and the second bundle unthreaded hole 56
Limit the angle of light.
The both sides of light source fixing part 5 are shaped with fixes, with switch case 1 inwall, the ladder bayonet socket 57 being connected.
The top of switch case 1 is provided with light guide plate 6 and the adjusting knob 7 being connected with PCB assembly 2, is used for regulating
The sensitivity of retroreflecting formula photoswitch and output type.It is provided with power supply indicator 94 below light guide plate 6 and duty refers to
Show that lamp 95, power supply indicator 94 are connected with power interface by power branch.Working station indicator 95 and display lamp three pole
The emitter stage of pipe 96 is connected, and the base stage connection of display lamp audion 96 processes the GP5 interface of chip 87, and colelctor electrode connects electricity
Source.
Being another embodiment of the present utility model shown in Fig. 4, in this embodiment, luminous organ 3 is fixed on first
The inner of through hole 51, and be connected with PCB assembly 2, the light that luminous organ 3 sends directly is penetrated by fenestra and filter lens 12.
Most preferred embodiment of the present utility model illustrates, those of ordinary skill in the art the various changes made or remodeling
All without departing from scope of the present utility model.
Claims (10)
1. a retroreflecting formula photoswitch, including switch case (1), is characterized in that: fixing in described switch case (1)
There is PCB assembly (2), for sending the luminous organ (3) of detection light and for receiving the light-receiving device (4) of baffle reflection light；
Described PCB assembly (2) is shaped with the illuminating circuit being connected with luminous organ (3) and defeated with the signal that light-receiving device (4) is connected
Go out circuit；Described luminous organ (3) sends after detection light is reflected recurrence and is sensed by described light-receiving device (4), and by letter
Number output circuit output signal of telecommunication.
A kind of retroreflecting formula photoswitch the most according to claim 1, is characterized in that: described luminous organ (3) is for sending out
Optical diode；Described illuminating circuit includes that the light that Power Entry Module, rectifying and voltage-stabilizing module are connected with luminous organ (3) is adjusted
Molding block.
A kind of retroreflecting formula photoswitch the most according to claim 2, is characterized in that: described light-receiving device (4) is light
Quick audion；Signal amplification module that described signal output apparatus includes being connected with light-receiving device (4), modulation circuit module,
Clocked logic module and signal output module.
A kind of retroreflecting formula photoswitch the most according to claim 3, is characterized in that: described Power Entry Module bag
Include power input interface；Described rectifying and voltage-stabilizing module includes power supply chip (81)；Described power supply chip (81) is provided with Vout
Interface, Vin interface and GND interface；Described Vout interface with GND interface respectively two ends with the first electric capacity (82) be connected,
And GND interface is connected with earth terminal；Described Vin interface with GND interface respectively two ends with the second electric capacity (83) be connected,
And be parallel with at the two ends of the second electric capacity (83) that the first resistance (84), the first diode (85) and out splice going splice (86) constitute defeated
Out branch.
A kind of retroreflecting formula photoswitch the most according to claim 4, is characterized in that: described PCB assembly (2) includes
Process chip (87)；Described optical modulator module includes light modulation audion (88)；The current collection of described light modulation audion (88)
Pole is connected with described out splice going splice (86), and luminous organ (3) connection afterwards described in base series processes the GP0 of chip (87) and connects
Mouthful.
A kind of retroreflecting formula photoswitch the most according to claim 5, is characterized in that: the current collection of described light-receiving device (4)
Pole and base stage connect power input interface by the second resistance, and connecting at base terminal has the polar capacitor (89) of ground connection；Described it is subject to
The emitter stage of light device (4) processes chip (87) by variable resistance (91) and the 3rd electric capacity (92) and amplifying triode (93) connection
GP2 interface.
A kind of retroreflecting formula photoswitch the most according to claim 6, is characterized in that: described switch case (1) is
Square plastic casing；It is shaped with in the inside of switch case (1) and described PCB assembly (2), luminous organ (3) and light-receiving device (4) are installed
Cavity (11)；The PCB fixed plate (21) that be connected fixing with PCB assembly (2) it is provided with on the top of cavity (11)；Described luminous organ
And light-receiving device (4) is fixed on the side of described PCB assembly (2) (3)；The sidewall of described switch case (1) is shaped with transmitted light
Fenestra, is installed with filter lens (12) at described fenestra.
A kind of retroreflecting formula photoswitch the most according to claim 7, is characterized in that: be provided with in described cavity (11)
Light source fixing part (5), described light source fixing part (5) is arranged between filter lens (12) and PCB assembly (2), fixes at light source
The inside of part (5) is shaped with two energy the first through hole (51) by light and the second through hole (52)；Described luminous organ (3) is fixed
The inner in the first through hole (51)；Described light-receiving device (4) is fixed on the inner of the second through hole (52).
A kind of retroreflecting formula photoswitch the most according to claim 8, is characterized in that: outside described first through hole (51)
End is installed with the first collecting lens (53), is shaped with the first bundle unthreaded hole (54) at the middle part of the first through hole (51)；Described second
The outer end of through hole (52) is installed with the second light transparent lens (55), is shaped with the second bundle unthreaded hole at the middle part of the second through hole (52)
(56)；The both sides of described light source fixing part (5) are shaped with fixes the ladder bayonet socket (57) being connected with switch case (1) inwall.
A kind of retroreflecting formula photoswitch the most according to claim 9, is characterized in that: the top of described switch case (1)
Portion is provided with light guide plate (6) and the adjusting knob (7) being connected with PCB assembly (2)；Described light guide plate (6) lower section is provided with
Power supply indicator (94) and working station indicator (95), described power supply indicator (94) passes through power branch and power interface
It is connected；Described working station indicator (95) is connected with the emitter stage of display lamp audion (96), described display lamp
The base stage connection of audion (96) processes the GP5 interface of chip (87), and colelctor electrode connects power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620505891.0U CN205666813U (en) | 2016-05-30 | 2016-05-30 | Retro -reflection formula photoelectric switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620505891.0U CN205666813U (en) | 2016-05-30 | 2016-05-30 | Retro -reflection formula photoelectric switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205666813U true CN205666813U (en) | 2016-10-26 |
Family
ID=57161202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620505891.0U Active CN205666813U (en) | 2016-05-30 | 2016-05-30 | Retro -reflection formula photoelectric switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205666813U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105897237A (en) * | 2016-05-30 | 2016-08-24 | 宁波星宇极光传感科技有限公司 | Regression reflection photoelectric switch |
| CN107332548A (en) * | 2017-07-27 | 2017-11-07 | 江门市江海区凯辉光电器材厂有限公司 | A kind of optoelectronic switch |
-
2016
- 2016-05-30 CN CN201620505891.0U patent/CN205666813U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105897237A (en) * | 2016-05-30 | 2016-08-24 | 宁波星宇极光传感科技有限公司 | Regression reflection photoelectric switch |
| CN105897237B (en) * | 2016-05-30 | 2018-11-13 | 星宇电子(宁波)有限公司 | A kind of retroreflecting optoelectronic switch |
| CN107332548A (en) * | 2017-07-27 | 2017-11-07 | 江门市江海区凯辉光电器材厂有限公司 | A kind of optoelectronic switch |
| CN107332548B (en) * | 2017-07-27 | 2023-09-12 | 江门市江海区凯辉光电器材厂有限公司 | Photoelectric switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170728 Address after: 315514, Zhejiang, Ningbo province Fenghua District Jiangkou Street Square Bridge Industrial Zone Hengfeng Road West End Patentee after: Xingyu electronic (Ningbo) Co. Ltd. Address before: 315514, Ningbo, Zhejiang province Fenghua Jiangkou Street Square Bridge Industrial Zone Hengfeng Road West End Patentee before: Ningbo Xingyu JiGuang Aurora Sensing AND Technology Co., Ltd. |