CN205403812U - Optical -electric module and photoelectric encoder - Google Patents
Optical -electric module and photoelectric encoder Download PDFInfo
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- CN205403812U CN205403812U CN201620202769.6U CN201620202769U CN205403812U CN 205403812 U CN205403812 U CN 205403812U CN 201620202769 U CN201620202769 U CN 201620202769U CN 205403812 U CN205403812 U CN 205403812U
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Abstract
The utility model relates to an optical -electric module to reach the photoelectric encoder including this optical -electric module. The optical -electric module includes: the light source for emit light bundle, the raster unit makes the diffraction takes place for the light beam that the light source sent, photoelectricity receiving element for receive the light beam that takes place the diffraction, and the frame, be used for supporting the light source the raster unit and photoelectricity receiving element, wherein, the light source the raster unit photoelectricity receiving element and frame of the forming as one structure. According to the utility model discloses an above -mentioned scheme, because the optical -electric module of light source, raster unit and photoelectricity receiving element of the forming as one structure to save the debugging step between the three, saved the activity duration, and then solved the difficult problem of product quality control.
Description
Technical field
This utility model belongs to detection technique field, particularly relates to a kind of optical-electric module and photoelectric encoder.
Background technology
Photoelectric encoder is a kind of to utilize opto-electronic conversion that the geometry of machinery displacement on output shaft is converted to the sensor of pulse or digital quantity, namely the signal of telecommunication is converted optical signals into by frame for movement and signal processing circuit, thus realizing the direct or indirect measurement of the multiple physical quantitys such as diagonal displacement, speed and position.Physical quantity measured by it is the difference of straight-line displacement and angle displacement, and photoelectric encoder can be divided into line light photoelectric coder and rotary photoelectric encoder.
As a kind of light harvesting, machinery, electrically in the sensor of one, light source therein (such as LED), raster unit and photoelectric apparatus (PD, PhotoDetector) location and cooperation determine that described photoelectric encoder exports quality and the precision of signal, therefore, it is that described photoelectric encoder is manufacturing the core with the structural design in assembling process and process debugging.In prior art, the manufacturer of photoelectric encoder relies primarily on the technical merit improving staff to the location ensureing between described light source, raster unit and photoelectric apparatus and cooperation, and the state of the output signal according to photoelectric encoder, whether such as output signal is stable, judges whether debugging is qualified.
The defects such as above adjustment method of the prior art exists activity duration length, debugging result varies with each individual and then control of product quality is difficult.
Utility model content
This utility model is to consider proposition on the basis of defect of prior art existence.Concrete, the utility model proposes a kind of optical-electric module and there is its photoelectric encoder, it can shorten the duration of photoelectric encoder Task of Debugging, debugging result is stablized, thus product quality can be ensured.
According to first aspect of the present utility model, it is provided that a kind of optical-electric module, including:
Light source, is used for sending light beam；
Raster unit, makes the light beam generation diffraction that described light source sends；
Photoelectric apparatus, for receiving the light beam that diffraction occurs；And
Framework, is used for supporting described light source, described raster unit and described photoelectric apparatus；
Wherein, described light source, described raster unit, described photoelectric apparatus and described framework forming as one structure.
Preferably, described framework is the framework of " ㄈ " type.
Preferably, described light source is formed on an end floor beam of the framework of " ㄈ " type, described raster unit forms the inner side of the other end crossbeam of the framework in " ㄈ " type, described photoelectric apparatus is formed in the outside of described other end crossbeam, so that the light that described light source sends can be received by described photoelectric apparatus after described raster unit；Or
Described light source forms the outside of an end floor beam of the framework in " ㄈ " type, described raster unit forms the inner side of an end floor beam of the framework in " ㄈ " type, described opto-electronic receiver unit is formed on the other end crossbeam of the framework of " ㄈ " type, so that the light sent from described light source can be received by described photoelectric apparatus after described raster unit.
According to second aspect of the present utility model, it is provided that a kind of photoelectric encoder, including:
Optical-electric module as described in above-mentioned any one；
Encoder element, it is placed between described light source and described raster unit, or it is placed between described raster unit and described photoelectric apparatus, the light sent from described light source is received by described photoelectric apparatus after raster unit and this encoder element, and the optical signal of reception is converted to the signal of telecommunication with output；
Circuit board, electrically connects with described optical-electric module；And
Housing, is used for holding described optical-electric module, described encoder element and described circuit board.
Preferably, described photoelectric encoder is rotary photoelectric encoder, and described encoder element includes code-disc；
This rotary photoelectric encoder also includes: shaft assembly, is used for driving described code-disc to rotate.
Preferably, described shaft assembly includes axle and bearing；
Described code-disc is fixing on the shaft, so that described axle drives described code-disc to rotate.
Preferably, adopting matched in clearance between described bearing and described axle, described photoelectric encoder also includes rotation set nut on described axle, wherein,
Described axle is provided with the place of cooperation of bearing one end and the boss of described bearing one end fits, the near sites coordinated with the bearing other end on described axle is provided with and the screw thread of described nut screw connection, and described bearing is held to be anchored between described boss and described nut.
Preferably, described photoelectric encoder is line light photoelectric coder, and described encoder element includes yardstick；
This line light photoelectric coder also includes: moving assembly, is used for driving described yardstick to move linearly.
Preferably, described housing includes base and cover portion；
Described circuit board is fixed on described base；
Described cover portion covers on described base, to form confined space with described base.
Preferably, mounting elastic sheet, described mounting elastic sheet is provided with outside projection；Described mounting elastic sheet is arranged on the downside of described base.
According to such scheme of the present utility model, the optical-electric module of described light source, raster unit and photoelectric apparatus forming as one structure, thus need not debugging the relative position etc. between above-mentioned three in the assembling and debugging process of described photoelectric encoder.Thus the debugging step eliminated between three, save the activity duration, reduce the randomness that in prior art, manual debugging exists, and and then solve the problem that control of product quality is difficult.In actual production operation, it is only necessary to adjust the optical-electric module of integral structure and the mutual alignment of code-disc.
Below in conjunction with the drawings and the specific embodiments, the technical solution of the utility model being done further detailed description, the beneficial effects of the utility model will be further appreciated.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by of the present utility model, constitutes a part of the present utility model, is used for explaining this utility model, is not intended that improper restriction of the present utility model.
Fig. 1 is the longitudinal profile structural representation of the described photoelectric encoder according to this utility model one preferred embodiment.
Fig. 2 illustrates the structural representation of the longitudinal profile of the described optical-electric module according to this utility model one preferred embodiment.
Fig. 3 illustrates the flow chart of the described optical-electric module forming described integral structure according to this utility model one preferred embodiment.
Fig. 4 (a), 4 (b) illustrate the schematic diagram according to the product structure in each step of the described optical-electric module forming described integral structure of this utility model one preferred embodiment.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with this utility model specific embodiment and corresponding accompanying drawing, technical solutions of the utility model are clearly and completely described.Obviously, described embodiment is only a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
According in photoelectric encoder of the present utility model, by light source, the optical-electric module of raster unit and photoelectric apparatus forming as one structure, so that eliminate light source in the assembling and debugging routine of described photoelectric encoder, cooperation between raster unit and photoelectric apparatus and debugging, and only need to by described light source, described optical-electric module and the relative position of code-disc that raster unit and photoelectric apparatus are formed are debugged, thus simplifying assembling and the debugging operations of described photoelectric encoder, save the working time, and improve assembling and adjustment accuracy further.Below in conjunction with accompanying drawing, optical-electric module of the present utility model and the photoelectric encoder that comprises it are described.
It should be noted that for convenience, illustrating for rotary photoelectric encoder in the application, the encoder element realizing coding therein is the circular rotating code-disc being arranged in rotating shaft.But what it will be appreciated by persons skilled in the art that is the above-mentioned encoder element of the present utility model line light photoelectric coder of yardstick that is obviously also applicable to adopt ruler-shaped.
Fig. 1 is the structural representation according to photoelectric encoder described in the utility model.As it is shown in figure 1, described photoelectric encoder includes optical-electric module 1, code-disc component 2 (21,22), circuit board unit 3 and holds the shell 4 (41,42) of above-mentioned parts.For rotary photoelectric encoder, also include the shaft assembly 5 (51,52 and 53) of carrying code-disc.Hereinafter each parts are illustrated one by one.
Described optical-electric module 1 is the integral structure formed by light source, raster unit and photoelectric apparatus.Fig. 2 illustrates the structural representation of the longitudinal profile of described optical-electric module 1.As in figure 2 it is shown, described optical-electric module includes light source 11, raster unit 12 and photoelectric apparatus 13.Preferred light emitting diode (LED) light source of described light source 11.The preferably several photodiode of photoelectric apparatus 13, its optical receiving surface is towards the direction of code-disc 21 such that it is able to receive the light sending from light source 11 and coming through code-disc 21 and raster unit 12.Photodiode is an example of described photoelectric apparatus 13.Described raster unit 12 is for determine grating, it is preferred to use the transparent materials such as glass form transparency carrier, and form rasterizer grid in the side in the face of light source of substrate.So, the light that then light source 11 sends is received by described photoelectric apparatus 13 at the optical stripe formed after code-disc 21 and raster unit 12, and be translated into signal of telecommunication output, thus in rotary photoelectric encoder, it is obtained in that signal is measured in the angular displacement etc. of the axle of rotation.
In this utility model, utilize, for instance injection molding technology or crimp technology etc., make described light source 11, raster unit 12 and photoelectric apparatus 13 be integrally formed on the framework K of " ㄈ " type, as shown in Figure 2.Thus in the assembling process of follow-up photoelectric encoder, eliminating the adjustment to position relationship between three etc., assembling and debugging operation and time are saved, thus better having ensured the quality of product.
As shown in Figure 2, light source 11 is formed on the crossbeam of framework K upper end, raster unit 12 and photoelectric apparatus 13 are formed on the crossbeam of framework K lower end, form path channels P between the two, so that the light beam from light source 11 injection can be received by photoelectric apparatus 13 through raster unit 12, thus photoelectric apparatus 13 is according to the optical signal output signal of telecommunication detected.Concrete, for ease of injection mo(u)lding, raster unit 12 forms the inner side at lower end floor beam, and photoelectric apparatus 13 forms the outside at lower end floor beam.Both described light source 11, raster unit 12 and photoelectric apparatus 13 are relative so that the light that light source sends through code-disc, determine grating after can be received by photoelectric apparatus.
In an embodiment as illustrated in figure 2, raster unit 12 is formed on the lower end floor beam of framework K, thus after described photoelectric encoder is completed, code-disc 21 is between light source 11 and described raster unit 12 so that light beam is irradiated on photoelectric apparatus 13 through code-disc 21, raster unit 12 after penetrating from light source 11.
Additionally, the exemplary only description in described top and bottom, in the structure shown in Fig. 2, light source is positioned at upper end, and photoelectric apparatus is positioned at lower end, and namely light path is advanced from top to bottom.It may be evident, however, that light source is positioned at lower end, photoelectric apparatus is positioned at upper end, and namely light path is advanced from bottom to top, also can realize the purpose of this utility model.
In described optical-electric module 1, the pin (for illustrating) of described light source 11 and described photoelectric apparatus 13 needs to expose, specifically, the pin of light source 11 exposes at the outer surface of the upper end floor beam of described framework K, and the pin of photoelectric apparatus 13 exposes at the outer surface of the lower end floor beam of described framework K.And utilize, for instance wire connects or the mode of electroplated conductive layer is electrically connected to the electric connecting terminal (not shown) formed on described optical-electric module 1.This electric connecting terminal is by electrically connecting with the electric connecting terminal on circuit board 3, thus realizing the power supply to described light source 11, photoelectric apparatus 13, and the output of the testing result of photoelectric apparatus 13.
Additionally, export for realizing the fixing and stable of described optical-electric module 1, it is preferable that this optical-electric module 1 is fixed on circuit board 3.Specifically, realize, on the basis electrically connected, utilizing, for instance be welded and fixed with the electric connecting terminal on circuit board 3 at it, or be first welded and fixed the modes such as recycling bonding mode reinforcing, described optical-electric module 1 is fixed on circuit board 3.
Referring again to Fig. 1, code-disc component 2 includes code-disc 21, and it is fixedly mounted on one end of axle 51, thus axle 51 can drive code-disc 21 to rotate when rotating.Code-disc 21 is formed as circular discs, preferably employ the transparent materials such as glass and form transparency carrier, and form alternatively distributed translucent construction and light-shielding structure in the side in the face of light source 11 of substrate, specifically, such as utilize the metal wires such as chromium to form light-shielding structure, between light-shielding structure, then form translucent construction.Code-disc 21, it is also preferred that include code-disc support 22, is first fixed on code-disc support on 22 by code-disc component 2 in installation process.Specifically, for instance utilize UV glue to be fixed on code-disc support 21 by code-disc 21.And further, the code-disc support 22 being provided with code-disc 21 is fixedly mounted on one end of axle 51, for instance adopt the connecting elements such as trip bolt.In installation process, code-disc 21 code-disc component axial location on axle 51 can be adjusted, so that can be positioned at the appropriate location between raster unit 12 and photoelectric apparatus 13 (when raster unit is positioned on the upside of code-disc) or between light source 11 and raster unit 12 (when raster unit is positioned on the downside of code-disc).Specifically, code-disc component can moving axially along encoder, for instance can be ensured the gap between code-disc and above-mentioned each element of described optical-electric module and flatness by the pad of different size.It should be noted that above structure is only the example arrangement of code-disc component, this utility model is not limited thereto, for instance UV glue can also be utilized directly to be bonded and fixed at by code-disc on described axle 51.It addition, it is further preferred that be improve certainty of measurement, in the installation process of code-disc component 2, it is possible to use the axiality of code-disc with axle is debugged within 5um by debugging apparatus.
Described circuit board 3 is preferably printed circuit board (PCB), the attachment structures such as such as trip bolt are utilized to be fixed on housing 4, it is provided with Signal Processing Element (not shown) and necessary circuit (not shown), for powering to the corresponding component in described optical-electric module 1 or exporting its testing result, play the effect of power supply and signal processing.Preferably, circuit board 3 is also devised with preventing the structure of the interference of electromagnetism etc., for instance adopts and is total to ground level method etc..
Described shell 4 is as it is shown in figure 1, preferably include base 41 and cover portion 42.Wherein, base 41 is used for carrying the parts such as described circuit board, plays the integrally-built effect supporting described photoelectric encoder, and is collectively forming closing space with described cover portion 42, to hold the parts such as described optical-electric module 1, code-disc component 2, thus playing the effect of protection.Described base 41 is formed preferably by metal material, and preferably described base 41 is carried out antirust treatment, thus avoiding pollution precision components of getting rusty, causes the infringement that described photoelectric encoder exports signal.Described cover portion 42 is formed preferably by resin material, and it forms airtight connection with described base 41, to play the dust-proof and protective effect to precison optical components such as the light source within photoelectric encoder, raster units.Cover portion 42 is with conventional connected mode, for instance the modes such as threaded and base 41 interference fit are connected to described base 41.Additionally, due to code-disc component, LED in photoelectric encoder, to determine the devices such as grating be all precision components, dust-proof class requirement is higher, therefore the seal request of shell is higher.After shell installs, gap must not be left.Airtight connection for both realizations, it is preferable that coordinate the position of contact that sealing ring etc. is set at both and seal structure.
In rotary photoelectric encoder, also include driving the shaft assembly 5 of the measurement that described code-disc 21 rotates to realize angular displacement.Described shaft assembly 5 preferably includes axle 51 and bearing 52.One end of described axle 51 is fixed with code-disc component 2 as described above, and the other end of described axle 51 is then fixed on the rotating shaft (not shown) of motor, thus the rotation of electric machine rotational axis is delivered to described axle 51.Bearing 52 is arranged between described axle 51 and described base 41, and all adopts matched in clearance between described bearing 52 and axle 51 and base 41.And, preferably, axle 51 is provided with and the boss of bearing 52 one end fits with the place of cooperation of bearing 52 one end, the near sites coordinated with bearing 52 other end on axle 51 is provided with screw thread, described shaft assembly 5 farther includes nut 53, nut 53 rotation set on axle 51, by with the threaded engagement on axle 51, for playing the effect of fixing bearing 52 after screwing.Thus convenient for assembly, simultaneously for the requirement on machining accuracy also relative reduction of bearing, provide cost savings.It is apparent that the installation of described bearing 52 and axle 51 is not limited to which, for instance may be used without the mounting means etc. of interference fit.
In addition, described photoelectric encoder, it is also preferred that include a mounting elastic sheet 6, is provided with outside projection, and mounting elastic sheet 6 is arranged on the downside of base 41, for fixing described base 41, and cushion the axial vibrations of described base 41 and the jerk produced in rotary course from electric machine rotational axis.This mounting elastic sheet is stamped and formed out preferably by sheet metal.
It is illustrated for described photoelectric encoder for rotary photoelectric encoder above.But optical-electric module 1 of the present utility model obviously can also apply to line light photoelectric coder, and when described photoelectric encoder is line light photoelectric coder, described encoder element includes yardstick；This line light photoelectric coder also includes: moving assembly, is used for driving described yardstick to move linearly.
The following describes the manufacture method of described optical-electric module 1 according to formation integral structure described in the utility model.Described method includes described light source 11, described raster unit 12, described photoelectric apparatus 13 and described framework K forming as one structure.Specifically, described light source 11, described raster unit 12 and described photoelectric apparatus 13 are placed in a mold, will, such as melted resin is expelled in die cavity, and cool down molding, described molten resin forms described framework after solidifying, thus described light source, raster unit, described opto-electronic receiver unit and described framework being formed integral structure in the way of injection mo(u)lding.When described light source 11, described raster unit 12 and described photoelectric apparatus 13 are placed in a mold, it is necessary to ensure the optical center alignment of three, and form effective path channels between three.It addition, the later stage that can carry out necessity after the optical-electric module forming integral structure processes, for instance carry out the electrical connection etc. of surface treatment, pin.
In a further embodiment, the method that described light source 11, described raster unit 12, described photoelectric apparatus 13 and described framework K form integral structure can be included the first half that molding respectively comprises light source, and molding comprises the step of the latter half of raster unit and photoelectric apparatus.Below in conjunction with the method that Fig. 3 and Fig. 4 (a), 4 (b) describe the optical-electric module 1 forming described integral structure according to this utility model another preferred embodiment.Fig. 3 illustrates the flow chart of the described optical-electric module 1 according to the described integral structure of formation of the present utility model.Fig. 4 (a), 4 (b) illustrate the schematic diagram of the product structure in each step of the described optical-electric module 1 according to the described integral structure of formation of the present utility model.It is pointed out that and include two integrated steps in this embodiment, but this utility model is not limited thereto.
As shown in Figure 3, the method of the optical-electric module 1 according to integral structure described in the utility model includes, form first half-finished step, namely, the first semi-finished product of forming as one in the way of forming path channels between the two by described photoelectric apparatus 13 and raster unit 12, as shown in Fig. 4 (a)；Form second half-finished step, i.e. light source 11 is formed as the second semi-finished product, as shown in Fig. 4 (b)；Calibration steps, i.e. the first semi-finished product and described second semi-finished product are carried out optical correction；And engagement step, i.e. by fixing to the first semi-finished product after optical correction and the second semi-finished product optical-electric module to form described integral structure, as shown in Figure 2.Individually below each step is described.
S1: form first half-finished step, the first semi-finished product of forming as one in the way of forming path channels between the two by described photoelectric apparatus 13 and raster unit 12.
Specifically, described photoelectric apparatus 13 and raster unit 12 are placed in a mold, more melted resin material is injected die cavity so that it is form the first semi-finished product of L-type after solidification, as shown in Fig. 4 (a).Wherein, when described photoelectric apparatus 13 and raster unit 12 being placed in a mold, it is necessary to ensure to form path channels between the two.
S2: form second half-finished step, i.e. light source 11 is formed as the second semi-finished product.
Specifically, light source 11 is placed in a mold, melted resin material is injected die cavity so that it is form the second semi-finished product of L-type after solidification, as shown in Fig. 4 (b).
In above step S1 and S2, as shown in Fig. 4 (a) and 4 (b), two semi-finished product are all formed as L-type, but, this utility model is not limited thereto, upper end header portion and lower end L-type part frame can also be formed in two forming steps respectively, or form upper end L-shaped part frame and lower end header portion respectively.It addition, the size of frame part can be designed as required and adjust.
S3: calibration steps, i.e. the light source in the raster unit on the first semi-finished product and photoelectric apparatus and described second semi-finished product is carried out optical correction.
In this step, utilize optics debugging apparatus, make the optical center alignment of light source on the optical center of the raster unit 12 on the first semi-finished product and photoelectric apparatus 13 and the second semi-finished product.Wherein, the optical center of raster unit 12 and photoelectric apparatus 13 can be its geometric center.Described optics debugging apparatus, for instance optical bench can be utilized to realize, first, second semi-finished product are placed on described optical bench by the concrete flexible jig that utilizes, and regulate described flexible jig so that the optical center alignment of three.
Additionally, for the less demanding occasion of certainty of measurement, it is also possible to form align structures when injection mo(u)lding in the position that first, second semi-finished product engage each other, the optical correction of each light source component can be realized according to this alignment mark.Specifically, form alignment bumps in the position to engage of one of two semi-finished product, form alignment recess in two half-finished positions that another to engage, thus when engaging two semi-finished product without carrying out optical correction again, and can directly engage.
S4: engagement step, i.e. by fixing to the first semi-finished product after optical correction and the second semi-finished product to form described integral structure, as shown in Figure 2.Preferably, it is possible to use binding agent realizes two half-finished joints.
Above the structure of photoelectric encoder of the present utility model is described.Wherein, the optical-electric module of described light source 11, raster unit 12 and photoelectric apparatus 13 forming as one structure, thus need not debugging the relative position etc. between above-mentioned three in the assembling and debugging process of described photoelectric encoder.Owing to above three parts are all micron levels, therefore in design and debugging, need very careful operation, all adopt debugging under line in the prior art.And this utility model owing to being designed as integral structure by them, thus the debugging step eliminated between three, save the activity duration, reduce the randomness that in prior art, manual debugging exists, and and then solve the problem that control of product quality is difficult.In actual production operation, it is only necessary to adjust the optical-electric module of integral structure and the mutual alignment of code-disc.If not adopting the optical-electric module of integral structure, then need first raster unit and photoelectric apparatus to be bonded together under high power microscope, then photoelectric apparatus is welded on circuit board by manual mode；Being fixed on axle by code-disc again, this operation is also required to down to complete at high power microscope, and precision controlling is at several microns；Afterwards light source is fixed on support；Finally it is assemblied together all above, is removed the output signal of monitoring encoder by oscillograph, and then adjust the mutual alignment of light source and circuit board thus reaching the output optimized purpose of signal.Adopt the device that light source, raster unit, photoelectric apparatus are discrete, production operation can increase at least two procedures, including light source with the debugging of the debugging of the relative position of raster unit and the relative position of fixing, raster unit and photoelectric apparatus with fixing.
To sum up, skilled addressee readily understands that, under the premise do not conflicted, above-mentioned each advantageous manner can freely combine, superposition.
The foregoing is only embodiment of the present utility model, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within right of the present utility model.
Claims (10)
1. an optical-electric module, including:
Light source, is used for sending light beam；
Raster unit, makes the light beam generation diffraction that described light source sends；
Photoelectric apparatus, for receiving the light beam that diffraction occurs；And
Framework, is used for supporting described light source, described raster unit and described photoelectric apparatus；
Wherein, described light source, described raster unit, described photoelectric apparatus and described framework forming as one structure.
2. optical-electric module as claimed in claim 1, wherein,
Described framework is the framework of " ㄈ " type.
3. optical-electric module as claimed in claim 2, wherein,
Described light source is formed on an end floor beam of the framework of " ㄈ " type, described raster unit forms the inner side of the other end crossbeam of the framework in " ㄈ " type, described photoelectric apparatus is formed in the outside of described other end crossbeam, so that the light that described light source sends can be received by described photoelectric apparatus after described raster unit；Or
Described light source forms the outside of an end floor beam of the framework in " ㄈ " type, described raster unit forms the inner side of an end floor beam of the framework in " ㄈ " type, described opto-electronic receiver unit is formed on the other end crossbeam of the framework of " ㄈ " type, so that the light sent from described light source can be received by described photoelectric apparatus after described raster unit.
4. a photoelectric encoder, including:
Optical-electric module as described in any one of claim 1-3；
Encoder element, it is placed between described light source and described raster unit, or it is placed between described raster unit and described photoelectric apparatus, the light sent from described light source is received by described photoelectric apparatus after raster unit and this encoder element, and the optical signal of reception is converted to the signal of telecommunication with output；
Circuit board, electrically connects with described optical-electric module；And
Housing, is used for holding described optical-electric module, described encoder element and described circuit board.
5. photoelectric encoder as claimed in claim 4, it is characterised in that wherein,
Described photoelectric encoder is rotary photoelectric encoder, and described encoder element includes code-disc；
This rotary photoelectric encoder also includes: shaft assembly, is used for driving described code-disc to rotate.
6. photoelectric encoder as claimed in claim 5, it is characterised in that wherein,
Described shaft assembly includes axle and bearing；
Described code-disc is fixing on the shaft, so that described axle drives described code-disc to rotate.
7. photoelectric encoder as claimed in claim 6, it is characterised in that adopting matched in clearance between described bearing and described axle, described photoelectric encoder also includes rotation set nut on described axle, wherein,
Described axle is provided with the place of cooperation of bearing one end and the boss of described bearing one end fits, the near sites coordinated with the bearing other end on described axle is provided with and the screw thread of described nut screw connection, and described bearing is held to be anchored between described boss and described nut.
8. photoelectric encoder as claimed in claim 4, it is characterised in that wherein,
Described photoelectric encoder is line light photoelectric coder, and described encoder element includes yardstick；
This line light photoelectric coder also includes: moving assembly, is used for driving described yardstick to move linearly.
9. the photoelectric encoder as described in any one of claim 4-8, it is characterised in that wherein,
Described housing includes base and cover portion；
Described circuit board is fixed on described base；
Described cover portion covers on described base, to form confined space with described base.
10. photoelectric encoder as claimed in claim 9, it is characterised in that also include:
Mounting elastic sheet, described mounting elastic sheet is provided with outside projection；Described mounting elastic sheet is arranged on the downside of described base.
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| CN201620202769.6U CN205403812U (en) | 2016-03-16 | 2016-03-16 | Optical -electric module and photoelectric encoder |
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| CN201620202769.6U CN205403812U (en) | 2016-03-16 | 2016-03-16 | Optical -electric module and photoelectric encoder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105698830A (en) * | 2016-03-16 | 2016-06-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Photoelectric module and manufacturing method thereof and photoelectric encoder |
| CN111049512A (en) * | 2019-12-14 | 2020-04-21 | 湘潭新昕通用电气有限公司 | Novel photoelectric setting device |
-
2016
- 2016-03-16 CN CN201620202769.6U patent/CN205403812U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105698830A (en) * | 2016-03-16 | 2016-06-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Photoelectric module and manufacturing method thereof and photoelectric encoder |
| CN111049512A (en) * | 2019-12-14 | 2020-04-21 | 湘潭新昕通用电气有限公司 | Novel photoelectric setting device |
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