CN218600582U - Photoelectric encoder - Google Patents
Photoelectric encoder Download PDFInfo
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- CN218600582U CN218600582U CN202222410108.0U CN202222410108U CN218600582U CN 218600582 U CN218600582 U CN 218600582U CN 202222410108 U CN202222410108 U CN 202222410108U CN 218600582 U CN218600582 U CN 218600582U
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Abstract
The utility model discloses a photoelectric encoder, which comprises a mounting seat, a PCB mainboard, a light source device, a photosensitive device, a light-gathering reflection assembly and a grating device, wherein the PCB mainboard is arranged on the mounting seat; the light source device is integrated on the PCB mainboard and used for providing a light source; the photosensitive device is integrated on the PCB mainboard, and the light source device and the photosensitive device are positioned on the same side of the PCB mainboard; the light-gathering reflection assembly is arranged opposite to the light-emitting end of the light source device and is used for refracting a light source to the photosensitive device; the grating device is arranged on the mounting seat and is positioned between the light-gathering reflection assembly and the photosensitive device. The utility model discloses a scheme is through spotlight reflection assembly with the light reflection that the light source device sent to the sensitization device of homonymy on, effectively improves light utilization ratio, also is favorable to shortening the equipment time of encoder, simplifies the equipment technology, the later maintenance of being convenient for.
Description
Technical Field
The utility model relates to an electromechanical field, in particular to photoelectric encoder.
Background
At present, in the technical field of encoders, a transmission-type photoelectric encoder generally comprises a Printed Circuit Board Assembly (PCBA), a PCBA mounting seat, an encoder mounting screw, a grating component and a light-emitting source (LED) lamp, wherein the grating component comprises a grating, a grating fixing seat and a grating fixing seat screw, in practical application, in order to ensure that an optoelectronic device on the PCBA receives parallel light rays opposite to the grating component, the light-emitting source (LED) lamp is often mounted on the other side of the grating component relative to the PCBA, and then the LED lamp is fixed through a light-emitting source, a method for welding an LED power line provides a light source for a perspective encoder, therefore, when the light source of the transmission-type photoelectric encoder needs to be fixed again, the assembly of the encoder needs to be re-welded, and the mode is not convenient for later-stage maintenance and disassembly work.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a photoelectric encoder aims at effectively having improved light utilization ratio, is favorable to shortening the equipment time of encoder, simplifies the equipment technology, the later maintenance of being convenient for.
In order to achieve the above object, the present invention provides an optical encoder, including:
a mounting seat;
the PCB main board is arranged on the mounting seat;
the light source device is integrated on the PCB mainboard and used for providing a light source;
the photosensitive device is integrated on the PCB mainboard, and the light source device and the photosensitive device are positioned on the same side of the PCB mainboard;
the light-gathering reflection assembly is arranged opposite to the light-emitting end of the light source device and used for refracting the light source to the photosensitive device;
the grating device is arranged on the mounting seat and is positioned between the light condensation reflection assembly and the photosensitive device.
Preferably, a surface of the light condensing and reflecting component opposite to the light emitting end of the light source device is at least partially convex.
Preferably, the light source device faces a center position of the convex surface.
Preferably, the convex outer surface is circular arc-shaped.
Preferably, the light-gathering reflection assembly comprises a first reflection plate, a second reflection plate and a third reflection plate, the first reflection plate, the second reflection plate and the third reflection plate are sequentially intersected to form a preset included angle, the first reflection plate and the light source device are arranged oppositely, at least part of one face of the first reflection plate, which is opposite to the light source device, is a convex face, the convex face is opposite to the light-emitting end of the light source device, one face, which is close to the light source device, of the second reflection plate is a reflection face, one face, which is close to the photosensitive device, of the third reflection plate is a reflection face, the grating device is arranged between the photosensitive device and the second reflection plate, the convex face of the first reflection plate is used for gathering light rays emitted by the light source device into parallel light beams to irradiate the second reflection plate, the second reflection plate is used for reflecting the parallel light beams to the third reflection plate, and the third reflection plate is used for reflecting the parallel light beams to vertically emit out of the first reflection plate to irradiate on the photosensitive device.
Preferably, the first reflection plate, the second reflection plate and the third reflection plate intersect in sequence to form a preset included angle between 0 and 90 degrees.
Preferably, the grating device includes grating, grating frame and grating fixing base, the grating with the grating frame is ring shape, the grating is followed the periphery wall circumference of grating frame sets up, the grating frame sets up on the grating fixing base, the grating fixing base sets up on the grating fixing base, the grating frame with the coaxial setting of grating fixing base, the grating is located the sensitization device with between the second reflecting plate, the grating with the sensitization device sets up relatively.
Preferably, the grating is a transmission grating.
Preferably, one of the PCB mainboard and the mounting seat is provided with a positioning part, one of the PCB mainboard and the mounting seat is provided with a limiting part, and the PCB further comprises a connecting bolt, wherein the connecting bolt penetrates through the positioning part and the limiting part to be in threaded connection.
Preferably, the positioning portion is a positioning hole, the positioning hole is a threaded hole, the limiting portion is a limiting hole, and the positioning hole and the limiting hole are correspondingly arranged.
Preferably, location portion is location screw thread, spacing portion is the thread groove, location screw thread with thread groove looks adaptation.
The technical scheme of the utility model set up with the luminous end of light source device relatively through having set up spotlight reflection assembly, can be with the light refraction that the light source device sent to install on the sensitization device with one side with the light source device, can correct and polymerize the less scope after output many times the scattering of light in longer propagation process, can realize the even propagation of light, the light loss after the spotlight many times is few, effectively improved the light utilization ratio, be favorable to shortening the equipment time of encoder simultaneously, simplify the equipment technology, the later maintenance of being convenient for.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram 1 of an embodiment of the photoelectric encoder of the present invention;
fig. 2 is a schematic structural diagram of an embodiment of the photoelectric encoder of the present invention 2;
FIG. 3 is a cross-sectional schematic view of the optical encoder of FIG. 2.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
20 | |
| 30 | |
40 | |
| 50 | Light- |
510 | First reflecting |
| 520 | Second reflecting |
530 | Third reflecting |
| 60 | |
610 | Grating |
| 620 | |
630 | |
| 70 | Connecting bolt |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear \8230;) are involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship between the components in a specific posture, the motion situation, etc., and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, if the expression "and/or" and/or "is used throughout, the meaning includes three parallel schemes, for example," A and/or B ", including scheme A, or scheme B, or a scheme satisfying both schemes A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a photoelectric encoder.
Referring to fig. 1 to 3, the embodiment of the present invention includes:
a mounting seat 10;
the PCB mainboard 20, the PCB mainboard 20 is arranged on the mounting seat 10;
a light source device 30, wherein the light source device 30 is integrated on the PCB main board 20, and the light source device 30 is used for providing a light source;
the photosensitive device 40, the photosensitive device 40 is integrated on the PCB main board 20, and the light source device 30 and the photosensitive device 40 are located on the same side of the PCB main board 20;
the light-gathering reflection assembly 50, the light-gathering reflection assembly 50 is arranged opposite to the light-emitting end of the light source device 30, and the light-gathering reflection assembly 50 is used for refracting the light source to the photosensitive device 40;
the grating device 60 is arranged on the mounting seat 10, and the grating device 60 is located between the light-gathering reflection assembly 50 and the photosensitive device 40.
The utility model discloses a photoelectric encoder, in work, the light that light source device 30 integrated on the PCB mainboard sent shines on spotlight emission subassembly 50, because light source device 30 and sensitization device 40 set up same one side at the PCB mainboard, consequently spotlight reflection subassembly 50 further refracts out light again, refracted light rethread grating subassembly 60 shines on sensitization device 40, thereby for photoelectric encoder provides the light source, this scheme is through spotlight emission subassembly 50 with the light refraction that light source device 30 provided to sensitization device 40 on, consequently in the time of later stage product maintenance in-process need be dismantled, or when changing the PCB mainboard, the assembly process has been simplified, photoelectric encoder's equipment time has been shortened.
Referring to fig. 1 and 3, in an embodiment of the present invention, a surface of the light-gathering reflective assembly 50 opposite to the light-emitting end of the light source device 30 is at least partially convex.
The convex surface of the light-condensing and reflecting component 50 opposite to the light-emitting end of the light source device 30 is used for better concentrating the light emitted by the light source device to the light-condensing and reflecting component 50, so that the light is better refracted to the photosensitive device 40.
Referring to fig. 1 and 3, in an embodiment of the present invention, the light source device 30 is directly opposite to the center position of the convex surface.
The light rays can be emitted in a better parallel way, and the light condensation effect is improved.
Referring to fig. 1 and 3, in an embodiment of the present invention, the convex outer surface is a circular arc.
The convex surface is set to be circular arc shape so as to better concentrate the light emitted from the light source device on the light-gathering reflection assembly 50, thereby better refracting the light to the photosensitive device 40.
Referring to fig. 1, in an embodiment of the present invention, the light-gathering reflection assembly 50 includes a first reflection plate 510, a second reflection plate 520, and a third reflection plate 530, the first reflection plate 510, the second reflection plate 520, and the third reflection plate 530 sequentially intersect to form a predetermined included angle, the first reflection plate 510 is disposed opposite to the light source device 30, at least a portion of one surface of the first reflection plate 510 disposed opposite to the light source device 30 is a convex surface, the convex surface is disposed opposite to a light-emitting end of the light source device 30, one surface of the second reflection plate 520 close to the light source device 30 is a reflection surface, one surface of the third reflection plate 530 close to the light sensing device 40 is a reflection surface, the grating device 60 is disposed between the light sensing device 40 and the second reflection plate 520, the convex surface 510 of the first reflection plate is configured to gather light emitted by the light source device 30 into parallel light beams to irradiate the second reflection plate, the second reflection plate is configured to reflect the parallel light beams to the third reflection plate 520, and the third reflection plate 530 is configured to reflect the parallel light beams 510 onto the light sensing device 40 perpendicularly.
The light emitted from the light emitting end of the light source device 30 irradiates onto the convex surface of the first reflection plate 510 on the light gathering total reflection structure 50, so that the light is gathered into parallel light beams by the convex surface, the gathered parallel light beams further reflect onto the reflection surface of the third reflection plate 530 through the reflection surface on the second reflection plate 520, the parallel light beams are reflected perpendicularly from the reflection surface of the third reflection plate 530 and irradiate onto the photosensitive device 40 through the grating device 60, thereby providing a light source for the photoelectric encoder, and after the light gathering and multiple reflection, the light emitting is more uniform, the light can be output after being scattered and gathered to a smaller range for multiple times in a longer propagation process, the uniform propagation of the light in the light gathering reflection assembly 50 can be realized, the uniform light effect can be realized, the light loss after multiple times of light gathering is very little, and the light utilization rate can be effectively improved.
In an embodiment of the present invention, the reflecting surface is a total reflecting surface.
Referring to fig. 1, in an embodiment of the present invention, the first reflective plate 510, the second reflective plate 520, and the third reflective plate 530 sequentially intersect to form a predetermined included angle, which is between 0 and 90 degrees.
This design can be convenient for photosensitive device 40 will be better from light source device 30 received light at third reflecting plate 530, first reflecting plate 510 and after reflecting between second reflecting plate 520, on second reflecting plate 520 reflects light to photosensitive device 40, the light loss after gathering many times is few, has effectively improved the light utilization ratio, has improved work efficiency.
Referring to fig. 1, in an embodiment of the present invention, the intersection of the first reflective plate 510 and the second reflective plate 520 is a circular arc transition.
Referring to fig. 1, in an embodiment of the present invention, the grating device 60 includes a grating 610, a grating frame 620 and a grating base 630, the grating 610 and the grating frame 620 are both circular rings, the grating 610 is along the circumferential wall of the grating frame 620 is circumferentially disposed, the grating frame 620 is disposed on the grating base 630, the grating base 630 is disposed on the grating base 630, the grating 610 the grating frame 620 is coaxially disposed with the grating base 630, the grating 610 is located between the photosensitive device 40 and the second reflective plate 520, the grating 610 is disposed relative to the photosensitive device 40.
The grating frame 620 is arranged on the grating base 630, so that the grating 610 is installed, the structure is compact, installation is convenient, light reflected by the second reflecting plate 520 reaches the photosensitive device 40 through the grating 610, and the light utilization rate is effectively improved.
Referring to fig. 1, in an embodiment of the present invention, the grating 610 is a transmission grating.
The light can pass through the grating 610, and the utilization rate of the light is effectively improved.
Referring to fig. 2 and 3, in an embodiment of the present invention, a positioning portion is disposed on one of the PCB motherboard 20 and the mounting base 10, a limiting portion is disposed on one of the PCB motherboard 20 and the mounting base 10, and the present invention further includes a connecting bolt 70, where the connecting bolt passes through the positioning portion and the limiting portion and is connected by a thread.
Through having set up spacing portion and location portion, can carry out better spacing by PCB mainboard 20 installation on mount pad 10, assurance PCB mainboard 20 that can be better is difficult to rock after mount pad 10 assembles, strengthens the fixed strength of PCB mainboard 20 between mount pad 10, and simultaneously, PCB mainboard 20 adopts spacing complex mounting means at mount pad 10, assembles portably, improves photoelectric encoder's production efficiency.
Referring to fig. 3, in an embodiment of the present invention, the positioning portion is a positioning hole, the positioning hole is a threaded hole, the limiting portion is a limiting hole, and the plurality of positioning holes correspond to the plurality of limiting holes.
Referring to fig. 3, in an embodiment of the present invention, the positioning portion is a positioning thread, the limiting portion is a thread groove, and the positioning thread is matched with the thread groove.
The contact surface of two adjacent PCB mainboards 20 and mount pad 10 pastes closely each other, and the locating hole can carry out the adaptation installation with spacing hole to fix a position PCB mainboard 20 and mount pad 10 and install, and then realize the concatenation between two adjacent air ducting 30 and the casing subassembly 10, reduced the loaded down with trivial details, the high problem of concatenation mechanism cost of concatenation process, easy operation simultaneously, easy operation, spare part is few, low in production cost.
Referring to fig. 1 and 3, in an embodiment of the present invention, the mounting base 10 is a cylinder, the mounting base 10 is provided with a mounting hole along an axial direction, the grating device 60 is installed in the mounting hole in a fitting manner, a mounting notch is radially provided on an outer wall of one side of the mounting base 10, and the light-gathering reflection assembly 50 is located at the mounting notch.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. An optical-to-electrical encoder, comprising:
a mounting base;
the PCB mainboard is arranged on the mounting seat;
the light source device is integrated on the PCB main board and is used for providing a light source;
the photosensitive device is integrated on the PCB mainboard, and the light source device and the photosensitive device are positioned on the same side of the PCB mainboard;
the light-gathering reflection assembly is arranged opposite to the light-emitting end of the light source device and used for refracting the light source to the photosensitive device;
the grating device is arranged on the mounting seat and is positioned between the light condensation reflection assembly and the photosensitive device.
2. The optical encoder as claimed in claim 1, wherein a surface of the light condensing and reflecting member disposed opposite to the light emitting end of the light source device is at least partially convex.
3. The optical-electrical encoder as claimed in claim 2, wherein the light source device faces a central position of the convex surface.
4. The optical-electrical encoder of claim 2, wherein the convex outer surface is rounded.
5. The optical encoder as claimed in claim 1, wherein the light-gathering reflection assembly includes a first reflection plate, a second reflection plate and a third reflection plate, the first reflection plate, the second reflection plate and the third reflection plate sequentially intersect to form a predetermined included angle, the first reflection plate is disposed opposite to the light source device, at least a portion of a surface of the first reflection plate disposed opposite to the light source device is a convex surface, the convex surface is disposed opposite to a light-emitting end of the light source device, a surface of the second reflection plate close to the light source device is a reflection surface, a surface of the third reflection plate close to the light-sensing device is a reflection surface, the grating device is disposed between the light-sensing device and the second reflection plate, the convex surface of the first reflection plate is configured to gather light emitted from the light source device into parallel light beams to irradiate the second reflection plate, the second reflection plate is configured to reflect the parallel light beams to the third reflection plate, and the third reflection plate is configured to reflect the parallel light beams perpendicular to the first reflection plate to irradiate on the light-sensing device.
6. The optical encoder according to claim 5, wherein the first reflective plate, the second reflective plate and the third reflective plate sequentially intersect to form a predetermined included angle between 0 and 90 degrees.
7. The optical encoder according to claim 5, wherein the grating device comprises a grating, a grating frame and a grating fixing seat, the grating and the grating frame are both circular rings, the grating is circumferentially arranged along the peripheral wall of the grating frame, the grating frame is arranged on the grating fixing seat, the grating frame and the grating fixing seat are coaxially arranged, the grating is located between the photosensitive device and the second reflecting plate, and the grating and the photosensitive device are oppositely arranged.
8. The optical encoder according to claim 7, wherein the grating is a transmission grating.
9. The optical-electrical encoder according to claim 1, wherein one of the PCB main board and the mounting base is provided with a positioning portion, and one of the PCB main board and the mounting base is provided with a limiting portion, and further comprising a connecting bolt, wherein the connecting bolt penetrates through the positioning portion and the limiting portion to be in threaded connection.
10. The optical-electrical encoder according to claim 9, wherein the positioning portion is a positioning hole, the positioning hole is a threaded hole, the limiting portion is a limiting hole, and the positioning hole is disposed corresponding to the limiting hole; or
The location portion is location screw thread, spacing portion is the thread groove, location screw thread with thread groove looks adaptation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222410108.0U CN218600582U (en) | 2022-09-09 | 2022-09-09 | Photoelectric encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222410108.0U CN218600582U (en) | 2022-09-09 | 2022-09-09 | Photoelectric encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218600582U true CN218600582U (en) | 2023-03-10 |
Family
ID=85397854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222410108.0U Active CN218600582U (en) | 2022-09-09 | 2022-09-09 | Photoelectric encoder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218600582U (en) |
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2022
- 2022-09-09 CN CN202222410108.0U patent/CN218600582U/en active Active
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