CN202903209U - NPN type open-collector two-phase output photoelectric encoder - Google Patents
NPN type open-collector two-phase output photoelectric encoder Download PDFInfo
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- CN202903209U CN202903209U CN 201220558279 CN201220558279U CN202903209U CN 202903209 U CN202903209 U CN 202903209U CN 201220558279 CN201220558279 CN 201220558279 CN 201220558279 U CN201220558279 U CN 201220558279U CN 202903209 U CN202903209 U CN 202903209U
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- photoelectric encoder
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Abstract
The utility model discloses an NPN type open-collector two-phase output photoelectric encoder which comprises a casing, a base connected to the casing and a signal processing circuit board arranged in the casing. Bearings are installed on the base, a rotating shaft is installed on the bearings, a section, arranged inside the casing, of the rotating shaft is fixedly connected with a code disk base, the code disk base is fixedly connected with a code disk, the base located below the code disk base is connected with a photoelectric module, a groove in which the code disk is inserted is arranged on the photoelectric module, a light transmitter and a light receiver are integrated in the photoelectric module, the light transmitter and the light receiver are respectively located at two sides of the groove, the signal processing circuit board is connected with a four-core cable, and four cores of the four-core cable are respectively a power supply positive wire, a power supply negative wire, an A-phase output wire of the photoelectric encoder and a B-phase output wire of the photoelectric encoder. The NPN type open-collector two-phase output photoelectric encoder has the advantages of compact structure, convenient processing and manufacture, low heat, good heat radiating performance, high working reliability, long service life and strong practicability.
Description
Technical field
The utility model relates to a kind of photoelectric encoder, especially relates to a kind of NPN type open collector two-phase output type photoelectric encoder.
Background technology
Along with the increase of domestic automation equipment turnout, the demand of increment type NPN type open collector two-phase output type photoelectric encoder is also increased thereupon.But under the 24V DC environment, the similar products at home and abroad capability and performance is all very unstable, and product casing is hot, and sendible temperature is greatly about about 50 degrees centigrade.Under this voltage environment in the product 1 year the continuous working scrappage had a strong impact on the reliability of product probably more than 40%, product of poor quality, serviceable life is short, replacement cost is high.
The utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, provides a kind of NPN type open collector two-phase output type photoelectric encoder, its compact conformation, rationally novel in design, processing and fabricating is convenient, and it is little to generate heat, perfect heat-dissipating, quality is good, functional reliability is high, and long working life is practical, result of use is good, is convenient to promote the use of.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of NPN type open collector two-phase output type photoelectric encoder, it is characterized in that: comprise the uncovered shell of an end and the pedestal that is fixedly connected on described shell opening end, and be arranged on signal processing circuit board in the cavity that is consisted of by described shell and pedestal, on the described pedestal bearing is installed, one end is installed on the described bearing is positioned at the rotating shaft that described housing exterior and the other end are positioned at described enclosure, be positioned in one section rotating shaft of described enclosure and be fixedly connected with the code-disc base, be fixedly connected with code-disc on the described code-disc base, be positioned on the pedestal of described code-disc base below and be fixedly connected with optical-electric module, be provided with the groove that inserts for code-disc on the described optical-electric module, be integrated with optical transmitting set and optical receiver in the described optical-electric module, described optical transmitting set and optical receiver lay respectively at the both sides of described groove, one end of described signal processing circuit board is fixedly connected with described pedestal, the other end of described signal processing circuit board is fixedly connected with described optical-electric module, be connected with on the described signal processing circuit board from the quad of enclosure through housing exterior, and have the cable-through hole that passes for quad on the described shell, be provided with protective ring between described quad and the described cable-through hole, four cores in the described quad are respectively the positive source wiring, the power cathode wiring, the A phase output line of photoelectric encoder and the B of photoelectric encoder be output line mutually.
Above-mentioned a kind of NPN type open collector two-phase output type photoelectric encoder, it is characterized in that: signal processing circuit integrated on the described signal processing circuit board is by power management chip IC1, inductance L 1, polar capacitor C1 and C3, polarity free capacitor C2, C4, C5 and C6, resistance R 1, R2, R3, R4, R6, R7, R15 and R17, triode Q3 and Q4, and voltage stabilizing diode D1, D2, D3 and D4 consist of; Described optical-electric module is opto-electronic conversion chip IC 2; The positive pole of the power supply input pin VIN of described power management chip IC1 and enable pin EN and polar capacitor C1, the end of polarity free capacitor C2 and the negative pole of voltage stabilizing diode D1 all join by the anodal VCC of the positive source wiring in the quad and external power source, one end of the voltage transitions pin SW of described power management chip IC1 and the negative pole of voltage stabilizing diode D2 and inductance L 1 joins, the end of the other end of described inductance L 1 and polarity free capacitor C6, the positive pole of polar capacitor C3, one end of resistance R 1, one end of resistance R 15, the positive voltage pin V of one end of resistance R 17 and opto-electronic conversion chip IC 2 joins, the inverter output voltage feedback pin FB of described power management chip IC1 and the end of polarity free capacitor C4 join, one end of the inversion output pin INV of described power management chip IC1 and an end of resistance R 1 and resistance R 2 joins, the other end of described polarity free capacitor C4 joins by the other end of resistance R 3 with resistance R 1, the end of the rectification pin RT of described power management chip IC1 and an end of resistance R 4 and polarity free capacitor C5 joins, the first signal output pin A of one end of the other end of described resistance R 15 and resistance R 6 and opto-electronic conversion chip IC 2 joins, the base stage of the other end of described resistance R 6 and triode Q3 is joined, the current collection of described triode Q3 very photoelectric encoder the A phase output terminal and with quad in the A phase output line of photoelectric encoder and the negative pole of voltage stabilizing diode D3 join, the secondary signal output pin B of one end of the other end of described resistance R 17 and resistance R 7 and opto-electronic conversion chip IC 2 joins, the base stage of the other end of described resistance R 7 and triode Q4 is joined, the current collection of described triode Q4 very photoelectric encoder the B phase output terminal and with quad in the B phase output line of photoelectric encoder and the negative pole of voltage stabilizing diode D4 join; The negative pole of described polar capacitor C1, the other end of polarity free capacitor C2, the positive pole of voltage stabilizing diode D1, the positive pole of voltage stabilizing diode D2, the other end of polarity free capacitor C6, the negative pole of polar capacitor C3, the grounding pin GND of power management chip IC1, the other end of resistance R 2, the other end of resistance R 4, the other end of polarity free capacitor C5, the emitter of triode Q3, the positive pole of voltage stabilizing diode D3, the emitter of triode Q4, the positive pole of voltage stabilizing diode D4, the negative voltage pin G of photoelectric encoder and the end of polarity free capacitor C all join by the negative pole OV of the power cathode wiring in the quad and external power source, the other end ground connection NC of described polarity free capacitor C7.
Above-mentioned a kind of NPN type open collector two-phase output type photoelectric encoder, it is characterized in that: described pedestal is fixedly connected on described shell opening end by the first countersunk head screw.
Above-mentioned a kind of NPN type open collector two-phase output type photoelectric encoder is characterized in that: be provided with O-ring seal between described pedestal and the described shell.
Above-mentioned a kind of NPN type open collector two-phase output type photoelectric encoder is characterized in that: be positioned in one section rotating shaft of described housing exterior and radially be provided with draw-in groove, be provided be used to the jump ring that prevents that described rotating shaft from axially rocking in the described draw-in groove.
Above-mentioned a kind of NPN type open collector two-phase output type photoelectric encoder is characterized in that: be provided with pad between described code-disc base and the described bearing.
Above-mentioned a kind of NPN type open collector two-phase output type photoelectric encoder, it is characterized in that: described optical-electric module is fixedly connected on the described pedestal by the second countersunk head screw.
Above-mentioned a kind of NPN type open collector two-phase output type photoelectric encoder, it is characterized in that: described rotating shaft is the steel axle.
Above-mentioned a kind of NPN type open collector two-phase output type photoelectric encoder, it is characterized in that: described code-disc is film code-disc.
Above-mentioned a kind of NPN type open collector two-phase output type photoelectric encoder, it is characterized in that: described protective ring is the rubber protective ring.
The utility model compared with prior art has the following advantages:
1, the utility model compact conformation, rationally novel in design, processing and fabricating is convenient.
2, the utility model has reduced self power consumption by the improvement of signal processing circuit, has reduced self-heating, has guaranteed simultaneously output power signal; Shell is made by aluminum alloy materials, strengthened heat-sinking capability of the present utility model, improved quality of the present utility model, thereby so that the utility model continuous working under the 24V environment, shell substantially can be not hot, prolonged mission life, 1 year failure rate of continuous working is less than 1%, and 2 years failure rates of continuous working are less than 2%.
3, functional reliability of the present utility model is high, need not frequent maintenance and repair and replacing, has reduced maintenance and repair cost and replacement of products cost.
4, of the present utility model practical, result of use is good, is convenient to promote the use of.
In sum, the utility model compact conformation, rationally novel in design, processing and fabricating is convenient, and it is little to generate heat, perfect heat-dissipating, quality is good, and functional reliability is high, long working life, practical, result of use is good, is convenient to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the circuit theory diagrams of the utility model signal processing circuit.
Fig. 3 is the structural representation of the utility model film code-disc.
Description of reference numerals:
1-rotating shaft; 2-jump ring; 3-bearing;
4-pedestal; 5-O-ring seal; 6-pad;
7-code-disc; 8-code-disc base; 9-quad;
10-protective ring; 11-shell; 12-signal processing circuit board;
13-optical-electric module; 13-1-groove; The 14-the second countersunk head screw;
The 15-the first countersunk head screw.
Embodiment
As shown in Figure 1, the utility model comprises the uncovered shell of an end 11 and is fixedly connected on the pedestal 4 of described shell 11 opening ends, and be arranged on signal processing circuit board 12 in the cavity that is consisted of by described shell 11 and pedestal 4, on the described pedestal 4 bearing 3 is installed, one end is installed on the described bearing 3 is positioned at the rotating shaft 1 that described shell 11 outsides and the other end are positioned at described shell 11 inside, be positioned in one section rotating shaft 1 of described shell 11 inside and be fixedly connected with code-disc base 8, be fixedly connected with code-disc 7 on the described code-disc base 8, be positioned on the pedestal 4 of described code-disc base 8 belows and be fixedly connected with optical-electric module 13, be provided with the groove 13-1 that inserts for code-disc 7 on the described optical-electric module 13, be integrated with optical transmitting set and optical receiver in the described optical-electric module 13, described optical transmitting set and optical receiver lay respectively at the both sides of described groove 13-1, one end of described signal processing circuit board 12 is fixedly connected with described pedestal 4, the other end of described signal processing circuit board 12 is fixedly connected with described optical-electric module 13, be connected with on the described signal processing circuit board 12 from the quad 9 of shell 11 inside through shell 11 outsides, and have the cable-through hole that passes for quad 9 on the described shell 11, be provided with protective ring 10 between described quad 9 and the described cable-through hole, four cores in the described quad 9 are respectively the positive source wiring, the power cathode wiring, the A phase output line of photoelectric encoder and the B of photoelectric encoder be output line mutually.
In conjunction with Fig. 2, in the present embodiment, signal processing circuit integrated on the described signal processing circuit board 12 is by power management chip IC1, inductance L 1, polar capacitor C1 and C3, polarity free capacitor C2, C4, C5 and C6, resistance R 1, R2, R3, R4, R6, R7, R15 and R17, triode Q3 and Q4, and voltage stabilizing diode D1, D2, D3 and D4 consist of; Described optical-electric module 13 is opto-electronic conversion chip IC 2; The positive pole of the power supply input pin VIN of described power management chip IC1 and enable pin EN and polar capacitor C1, the end of polarity free capacitor C2 and the negative pole of voltage stabilizing diode D1 all join by the anodal VCC of the positive source wiring in the quad 9 and external power source, one end of the voltage transitions pin SW of described power management chip IC1 and the negative pole of voltage stabilizing diode D2 and inductance L 1 joins, the end of the other end of described inductance L 1 and polarity free capacitor C6, the positive pole of polar capacitor C3, one end of resistance R 1, one end of resistance R 15, the positive voltage pin V of one end of resistance R 17 and opto-electronic conversion chip IC 2 joins, the inverter output voltage feedback pin FB of described power management chip IC1 and the end of polarity free capacitor C4 join, one end of the inversion output pin INV of described power management chip IC1 and an end of resistance R 1 and resistance R 2 joins, the other end of described polarity free capacitor C4 joins by the other end of resistance R 3 with resistance R 1, the end of the rectification pin RT of described power management chip IC1 and an end of resistance R 4 and polarity free capacitor C5 joins, the first signal output pin A of one end of the other end of described resistance R 15 and resistance R 6 and opto-electronic conversion chip IC 2 joins, the base stage of the other end of described resistance R 6 and triode Q3 is joined, the current collection of described triode Q3 very photoelectric encoder the A phase output terminal and with quad 9 in the A phase output line of photoelectric encoder and the negative pole of voltage stabilizing diode D3 join, the secondary signal output pin B of one end of the other end of described resistance R 17 and resistance R 7 and opto-electronic conversion chip IC 2 joins, the base stage of the other end of described resistance R 7 and triode Q4 is joined, the current collection of described triode Q4 very photoelectric encoder the B phase output terminal and with quad 9 in the B phase output line of photoelectric encoder and the negative pole of voltage stabilizing diode D4 join; The negative pole of described polar capacitor C1, the other end of polarity free capacitor C2, the positive pole of voltage stabilizing diode D1, the positive pole of voltage stabilizing diode D2, the other end of polarity free capacitor C6, the negative pole of polar capacitor C3, the grounding pin GND of power management chip IC1, the other end of resistance R 2, the other end of resistance R 4, the other end of polarity free capacitor C5, the emitter of triode Q3, the positive pole of voltage stabilizing diode D3, the emitter of triode Q4, the positive pole of voltage stabilizing diode D4, the negative voltage pin G of photoelectric encoder and the end of polarity free capacitor C7 all join by the negative pole OV of the power cathode wiring in the quad 9 and external power source, the other end ground connection NC of described polarity free capacitor C7 specifically receives on the inwall of described shell 11.
In the signal processing circuit, the circuit that polar capacitor C1, polarity free capacitor C2 and voltage stabilizing diode D1 consist of is used for rectification and anti-reverse; Power management chip IC1, inductance L 1, polar capacitor C3, polarity free capacitor C4, C5 and C6, the circuit that resistance R 1, R2, R3 and R4 and voltage stabilizing diode D2 consist of are used for carrying out the DC-DC voltage transitions, and are 2 power supplies of opto-electronic conversion chip IC; The circuit that opto-electronic conversion chip IC 2 and resistance R 15 and R17 consist of is used for carrying out light signal to the conversion of electric signal; The circuit that resistance R 6 and R7, triode Q3 and Q4 and voltage stabilizing diode D3 and D4 consist of carries out exporting after processing is amplified in rectification for the electric signal to 2 outputs of opto-electronic conversion chip IC.
In conjunction with Fig. 1, in the present embodiment, described pedestal 4 is fixedly connected on described shell 11 opening ends by the first countersunk head screw 15.Be provided with O-ring seal 5 between described pedestal 4 and the described shell 11.Be positioned in one section rotating shaft 1 of described shell 11 outsides and radially be provided with draw-in groove, be provided with in the described draw-in groove be used to the jump ring 2 that prevents that described rotating shaft 1 from axially rocking.Be provided with pad 6 between described code-disc base 8 and the described bearing 3.Described optical-electric module 13 is fixedly connected on the described pedestal 4 by the second countersunk head screw 14.
During implementation, described rotating shaft 1 is the steel axle.Described code-disc 7 is film code-disc, and the structural representation of described film code-disc as shown in Figure 3.Described protective ring 10 is the rubber protective ring.Described shell 11 is made by aluminum alloy materials.
Principle of work of the present utility model and the course of work are: when driving rotating shaft 1 rotation by external motor, rotating shaft 1 just drives code-disc 7 rotations by code-disc base 8, in code-disc 7 rotary courses, optical-electric module 13 detects in real time code-disc 7 rotating signals and produces pulse signal, the pulse signal that produces passes through the mutually output line output of B of A phase output line and the photoelectric encoder of photoelectric encoder after signal processing circuit is carried out rectification amplification processing, A, B two-phase pulse differ 90 degree phasing degree, can measure photoelectric encoder rotation direction and motor speed thus.A phase output line is used for the ranging pulse number, and B phase output line cooperates with A phase output line can measure rotation direction; If A phase ratio of pulse length to the total cycle length B phase pulse advance then photoelectric encoder is forward, otherwise be counter-rotating.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; every any simple modification, change and equivalent structure of above embodiment being done according to the utility model technical spirit changes, and all still belongs in the protection domain of technical solutions of the utility model.
Claims (10)
1. NPN type open collector two-phase output type photoelectric encoder, it is characterized in that: comprise the uncovered shell of an end (11) and be fixedly connected on the pedestal (4) of described shell (11) opening end, and be arranged on by the signal processing circuit board (12) in the cavity of described shell (11) and pedestal (4) formation, bearing (3) is installed on the described pedestal (4), one end is installed on the described bearing (3) to be positioned at described shell (11) outside and the other end and to be positioned at the inner rotating shaft (1) of described shell (11), be positioned in the inner one section rotating shaft (1) of described shell (11) and be fixedly connected with code-disc base (8), be fixedly connected with code-disc (7) on the described code-disc base (8), be positioned on the pedestal (4) of described code-disc base (8) below and be fixedly connected with optical-electric module (13), be provided with the groove (13-1) that inserts for code-disc (7) on the described optical-electric module (13), described optical-electric module is integrated with optical transmitting set and optical receiver in (13), described optical transmitting set and optical receiver lay respectively at the both sides of described groove (13-1), one end of described signal processing circuit board (12) is fixedly connected with described pedestal (4), the other end of described signal processing circuit board (12) is fixedly connected with described optical-electric module (13), be connected with from shell (11) inner through the outside quad (9) of shell (11) on the described signal processing circuit board (12), and have the cable-through hole that passes for quad (9) on the described shell (11), be provided with protective ring (10) between described quad (9) and the described cable-through hole, four cores in the described quad (9) are respectively the positive source wiring, the power cathode wiring, the A phase output line of photoelectric encoder and the B of photoelectric encoder be output line mutually.
2. according to a kind of NPN type open collector two-phase output type photoelectric encoder claimed in claim 1, it is characterized in that: the upper integrated signal processing circuit of described signal processing circuit board (12) is by power management chip IC1, inductance L 1, polar capacitor C1 and C3, polarity free capacitor C2, C4, C5 and C6, resistance R 1, R2, R3, R4, R6, R7, R15 and R17, triode Q3 and Q4, and voltage stabilizing diode D1, D2, D3 and D4 consist of; Described optical-electric module (13) is opto-electronic conversion chip IC 2; The positive pole of the power supply input pin VIN of described power management chip IC1 and enable pin EN and polar capacitor C1, the end of polarity free capacitor C2 and the negative pole of voltage stabilizing diode D1 all join by the anodal VCC of the positive source wiring in the quad (9) and external power source, one end of the voltage transitions pin SW of described power management chip IC1 and the negative pole of voltage stabilizing diode D2 and inductance L 1 joins, the end of the other end of described inductance L 1 and polarity free capacitor C6, the positive pole of polar capacitor C3, one end of resistance R 1, one end of resistance R 15, the positive voltage pin V of one end of resistance R 17 and opto-electronic conversion chip IC 2 joins, the inverter output voltage feedback pin FB of described power management chip IC1 and the end of polarity free capacitor C4 join, one end of the inversion output pin INV of described power management chip IC1 and an end of resistance R 1 and resistance R 2 joins, the other end of described polarity free capacitor C4 joins by the other end of resistance R 3 with resistance R 1, the end of the rectification pin RT of described power management chip IC1 and an end of resistance R 4 and polarity free capacitor C5 joins, the first signal output pin A of one end of the other end of described resistance R 15 and resistance R 6 and opto-electronic conversion chip IC 2 joins, the base stage of the other end of described resistance R 6 and triode Q3 is joined, the current collection of described triode Q3 very photoelectric encoder the A phase output terminal and with quad (9) in the A phase output line of photoelectric encoder and the negative pole of voltage stabilizing diode D3 join, the secondary signal output pin B of one end of the other end of described resistance R 17 and resistance R 7 and opto-electronic conversion chip IC 2 joins, the base stage of the other end of described resistance R 7 and triode Q4 is joined, the current collection of described triode Q4 very photoelectric encoder the B phase output terminal and with quad (9) in the B phase output line of photoelectric encoder and the negative pole of voltage stabilizing diode D4 join; The negative pole of described polar capacitor C1, the other end of polarity free capacitor C2, the positive pole of voltage stabilizing diode D1, the positive pole of voltage stabilizing diode D2, the other end of polarity free capacitor C6, the negative pole of polar capacitor C3, the grounding pin GND of power management chip IC1, the other end of resistance R 2, the other end of resistance R 4, the other end of polarity free capacitor C5, the emitter of triode Q3, the positive pole of voltage stabilizing diode D3, the emitter of triode Q4, the positive pole of voltage stabilizing diode D4, the negative voltage pin G of photoelectric encoder and the end of polarity free capacitor C7 all join by the negative pole OV of the power cathode wiring in the quad (9) and external power source, the other end ground connection NC of described polarity free capacitor C7.
3. according to claim 1 or 2 described a kind of NPN type open collector two-phase output type photoelectric encoders, it is characterized in that: described pedestal (4) is fixedly connected on described shell (11) opening end by the first countersunk head screw (15).
4. according to claim 1 or 2 described a kind of NPN type open collector two-phase output type photoelectric encoders, it is characterized in that: be provided with O-ring seal (5) between described pedestal (4) and the described shell (11).
5. according to claim 1 or 2 described a kind of NPN type open collector two-phase output type photoelectric encoders, it is characterized in that: be positioned in the outside one section rotating shaft (1) of described shell (11) and radially be provided with draw-in groove, be provided with in the described draw-in groove be used to the jump ring (2) that prevents that described rotating shaft (1) from axially rocking.
6. according to claim 1 or 2 described a kind of NPN type open collector two-phase output type photoelectric encoders, it is characterized in that: be provided with pad (6) between described code-disc base (8) and the described bearing (3).
7. according to claim 1 or 2 described a kind of NPN type open collector two-phase output type photoelectric encoders, it is characterized in that: described optical-electric module (13) is fixedly connected on the described pedestal (4) by the second countersunk head screw (14).
8. according to claim 1 or 2 described a kind of NPN type open collector two-phase output type photoelectric encoders, it is characterized in that: described rotating shaft (1) is the steel axle.
9. according to claim 1 or 2 described a kind of NPN type open collector two-phase output type photoelectric encoders, it is characterized in that: described code-disc (7) is film code-disc.
10. according to claim 1 or 2 described a kind of NPN type open collector two-phase output type photoelectric encoders, it is characterized in that: described protective ring (10) is the rubber protective ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220558279 CN202903209U (en) | 2012-10-27 | 2012-10-27 | NPN type open-collector two-phase output photoelectric encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220558279 CN202903209U (en) | 2012-10-27 | 2012-10-27 | NPN type open-collector two-phase output photoelectric encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202903209U true CN202903209U (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220558279 Expired - Fee Related CN202903209U (en) | 2012-10-27 | 2012-10-27 | NPN type open-collector two-phase output photoelectric encoder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202903209U (en) |
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2012
- 2012-10-27 CN CN 201220558279 patent/CN202903209U/en not_active Expired - Fee Related
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20130424 Termination date: 20131027 |