CN211668524U - Encoder composite structure and compact encoder comprising same - Google Patents
Encoder composite structure and compact encoder comprising same Download PDFInfo
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- CN211668524U CN211668524U CN202020402007.7U CN202020402007U CN211668524U CN 211668524 U CN211668524 U CN 211668524U CN 202020402007 U CN202020402007 U CN 202020402007U CN 211668524 U CN211668524 U CN 211668524U
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Abstract
The utility model discloses an encoder integrated configuration and compact encoder that contains encoder integrated configuration. The encoder assembly includes a body assembly and a shaft assembly. The body assembly comprises a bracket, a circuit board fixed on the bracket and a magnetic field energy collecting device arranged on the circuit board. The shaft assembly comprises a shaft, a grid disc and a magnet, wherein the magnet is fixedly connected to the shaft, and the grid disc is fixedly connected to the magnet. The utility model discloses an encoder integrated configuration and compact encoder that contains encoder integrated configuration install magnet in the axle, and the bars dish is installed in magnet for the external diameter of magnet can not receive the internal diameter of bars dish and the influence of the interior external diameter of axle, still makes magnet possible great volume. In addition, the shape requirement of the magnet is low, and the magnet is convenient to manufacture and process.
Description
Technical Field
The utility model belongs to the encoder field, concretely relates to encoder integrated configuration and a compact encoder who contains encoder integrated configuration.
Background
The invention discloses a wireless sensor self-power supply system with publication number CN101577505B and subject name based on space electromagnetic energy, and referring to fig. 2, fig. 3a and fig. 3b, the technical scheme thereof discloses that the wireless sensor self-power supply system comprises an electric field energy collecting device, a magnetic field energy collecting device and an electric energy conditioning unit … …, wherein the magnetic field energy collecting device is a magnetic energy collecting induction ring which is formed by uniformly crossing and arranging a plurality of same circular rings according to a certain space angle to form a sphere, and each circular ring is formed by winding a plurality of turns of conducting wires. In other words, the above-mentioned invention patent may be viewed as disclosing one specific embodiment of the magnetic field energy collecting apparatus.
The utility model discloses a utility model with publication number CN206117475U and subject name of realizing device for collecting and converting alternating magnetic field energy, which comprises a magnetic field source generating device for generating magnetic field with north-south polarity alternating region; the energy collecting unit is used for generating relative motion with the magnetic field generated by the magnetic field source generating device and generating alternating electric potential in the north-south polarity alternating area of the magnetic field; the energy conversion unit is used for collecting the current generated potential energy and magnetic field energy of the energy collection unit under one magnetic field polarity and outputting the current generated potential energy and magnetic field energy of the energy collection unit and the energy collected under the previous magnetic field polarity under the next opposite magnetic field polarity; the energy collection unit is arranged below the magnetic field source generating device, and the projection width of the energy collection unit on the vertical plane of the magnetic field is less than the width of the alternating magnetic field area and greater than 1/3' of the width of the alternating magnetic field area. In other words, the above utility model patent may be regarded as disclosing another specific embodiment of the magnetic field energy collecting device.
Generally, an encoder is mounted on a motor or other automated equipment, and is a sensor for detecting an angular displacement and a rotational speed of a rotating shaft. The multi-turn encoder is added with the function of registering the turn number on the basis of the single-turn encoder, and can count the turns when the main power supply is powered off. At present, there is an encoder that utilizes magnetic field energy collection device to carry out many rounds of counts, utilizes magnetic field energy collection device to need certain magnetic field intensity just can reliably work. To achieve higher magnetic field strengths, larger magnets are typically used, which presents challenges to miniaturization of the encoder.
At present, an encoder using the device is generally a magnetic encoder, a large-volume magnet is fixedly connected to the shaft end of the encoder, single-circle angle information of the encoder is obtained by detecting the rotating angle of a magnetic field of the magnet through an induction chip, and meanwhile, the magnetic field rotates to enable an electric pulse to be generated on a magnetic field energy collecting device to count multiple circles. According to the scheme, the magnet for calculating a single circle and the magnet for calculating multiple circles can be multiplexed, so that no extra device or height is generated, and the compact design can be realized. However, due to the nature of the magnetic encoder, high resolution cannot be achieved.
When the counting device is used for a high-resolution encoder such as a photoelectric encoder, the inner diameter of the grating cannot be made large because the shape of the grating is limited by the optical size. The conventional approach is to mount the grating on the encoder shaft with the magnet embedded within the encoder shaft. However, the magnet cannot be made large because the inner diameter of the grating is small. This can result in insufficient energy being captured by the magnetic field energy harvesting device, risking the accuracy of the multi-turn count.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's situation, overcome above defect, provide an encoder integrated configuration and a compact encoder who contains encoder integrated configuration.
The utility model discloses an encoder integrated configuration that patent application discloses and compact encoder that contains encoder integrated configuration, its main aim at installs magnet in the axle, and the bars dish is installed in magnet for the external diameter of magnet can not receive the internal diameter of bars dish and the influence of the interior external diameter of axle, still makes magnet possible great volume.
The utility model discloses an encoder integrated configuration and compact encoder that contains encoder integrated configuration that the patent application discloses, its another aim at requires lowerly to the shape of magnet, and the magnet of being convenient for is made and is processed.
The utility model discloses a following technical scheme, encoder integrated configuration includes a body subassembly and an axle subassembly, wherein:
the body assembly comprises a bracket, a circuit board fixed on the bracket and a magnetic field energy collecting device arranged on the circuit board;
the shaft assembly comprises a shaft, a grid disc and a magnet, wherein the magnet is fixedly connected to the shaft, and the grid disc is fixedly connected to the magnet.
According to the above technical solution, as a further preferable technical solution of the above technical solution, the grating disk is embodied as one of a grating, a capacitive grating, and an inductive encoder rotor.
According to the above aspect, as a further preferable aspect of the above aspect, the magnet is attached to one of the end surface contact surface and the cylindrical surface contact surface, or the magnet is attached to both of the end surface contact surface and the cylindrical surface contact surface.
The utility model discloses still adopt following technical scheme, contain an encoder integrated configuration, encoder integrated configuration includes a body subassembly and an axle subassembly, wherein:
the body assembly comprises a bracket, a circuit board fixed on the bracket and a magnetic field energy collecting device arranged on the circuit board;
the axle subassembly includes an axle, a bars dish and a magnet, magnet fixed connection in the axle, bars dish fixed connection in magnet, wherein:
the body assembly further includes a light source.
According to the above technical solution, as a further preferable technical solution of the above technical solution, the shaft is implemented as a metal shaft, the grating disk is implemented as a grating disk, and the magnet is implemented as a magnetic ring.
According to the above technical solution, as a further preferable technical solution of the above technical solution, an end surface of the metal shaft is bonded to the magnetic ring through glue, and an upper portion of the magnetic ring is bonded to the grating disk through glue.
The utility model discloses still adopt following technical scheme, contain an encoder integrated configuration, encoder integrated configuration includes a body subassembly and an axle subassembly, wherein:
the body assembly comprises a bracket, a circuit board fixed on the bracket and a magnetic field energy collecting device arranged on the circuit board;
the axle subassembly includes an axle, a bars dish and a magnet, magnet fixed connection in the axle, bars dish fixed connection in magnet, wherein:
the compact encoder including the encoder assembly further includes a bearing assembly including two bearings through which the shaft assembly fits within the body assembly;
the body assembly further includes a light source.
According to the above technical solution, as a further preferable technical solution of the above technical solution, the shaft is implemented as a metal shaft, the grating disk is implemented as a grating disk, and the magnet is implemented as a magnetic ring.
According to the above technical solution, as a further preferable technical solution of the above technical solution, an end surface of the metal shaft is bonded to the magnetic ring through glue, and an upper portion of the magnetic ring is bonded to the grating disk through glue.
The utility model discloses an encoder integrated configuration and compact encoder who contains encoder integrated configuration, its beneficial effect lies in, installs magnet in the axle, and the bars dish is installed in magnet for the external diameter of magnet can not receive the internal diameter of bars dish and the influence of the interior external diameter of axle, still makes magnet possible great volume. In addition, the shape requirement of the magnet is low, and the magnet is convenient to manufacture and process.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of a preferred embodiment (encoder assembly) of the present invention.
Fig. 2 is a schematic cross-sectional structure diagram of one of the modified embodiments of the preferred embodiment (encoder assembly) of the present invention.
Fig. 3 is a schematic cross-sectional structure diagram of a first embodiment of the present invention (a compact encoder including an encoder assembly structure, such as an optical-electrical split multi-turn encoder).
Fig. 4 is a schematic cross-sectional structure diagram of a compact encoder (including an encoder assembly) according to a second embodiment of the present invention.
The reference numerals include: 100-encoder composite structure; 110-a body component; 111-a scaffold; 112-a circuit board; 113-a light source; 120-shaft assembly; 121-axis; 121' -metal shaft; 122-a grating disk; 122' -a grating disk; 123-magnet; 123' -a magnetic ring; 130-a bearing assembly; 131-a bearing; 200-a magnetic field energy harvesting device; 300-compact encoder (compact encoder including encoder assembly); 301-measured axis.
Detailed Description
The utility model discloses an encoder integrated configuration and a compact encoder that contains encoder integrated configuration combine preferred embodiment below, it is right the utility model discloses a detailed implementation does further description.
Referring to fig. 1 to 4 of the drawings, fig. 1 shows a sectional structure of one embodiment of the encoder assembly, fig. 2 shows a sectional structure of another embodiment of the encoder assembly, fig. 3 shows a sectional structure of one embodiment of the compact encoder including the encoder assembly, and fig. 4 shows a sectional structure of another embodiment of the compact encoder including the encoder assembly.
Preferred embodiments (mainly disclosed encoder combinations).
Preferably, the encoder assembly 100 includes a body assembly 110 and a shaft assembly 120, wherein:
the body assembly 110 comprises a bracket 111, a circuit board 112 fixed to the bracket 111, and a magnetic field energy collecting device 200 mounted on the circuit board 112;
the shaft assembly 120 includes a shaft 121, a grating disk 122 and a magnet 123, the magnet 123 is fixedly connected to the shaft 121, and the grating disk 122 is fixedly connected to the magnet 123.
It should be noted that, according to the above embodiments, the encoder combined structure disclosed in this embodiment further includes several modified implementation manners. For example, the grating disk 122 may be embodied as one of a grating, a capacitive grating, an inductive encoder rotor (or other similar type of grating disk). Referring to fig. 2 of the drawings, as another modified embodiment of the present embodiment, for example, the magnet 123 is attached to (only) one of the end face contact surface and the cylindrical surface contact surface, or the magnet 123 is attached to both the end face contact surface and the cylindrical surface contact surface.
According to the encoder integrated configuration that this embodiment disclosed, its main effect lies in, installs magnet in the axle, and the bars dish is installed in magnet for the external diameter of magnet can not receive the influence of the internal diameter of bars dish and the inside and outside footpath of axle, still makes magnet possible great volume. Meanwhile, the shape requirement of the magnet is low, and the magnet is convenient to manufacture and process.
A first embodiment (which is incorporated in its entirety, and on which the encoder assembly is applied to a compact encoder, such as an electro-optical split multi-turn encoder).
Preferably, the compact encoder 300 comprising the encoder assembly comprises an encoder assembly 100, the encoder assembly 100 comprises a body member 110 and a shaft member 120, wherein:
the body assembly 110 comprises a bracket 111, a circuit board 112 fixed to the bracket 111, and a magnetic field energy collecting device 200 mounted on the circuit board 112;
the shaft assembly 120 includes a shaft 121, a grating disk 122 and a magnet 123, the magnet 123 is fixedly connected to the shaft 121, the grating disk 122 is fixedly connected to the magnet 123, wherein:
the body assembly 110 further includes a light source 113.
Further, the shaft 121 is embodied as a metal shaft 121'.
Further, the grating disk 122 is embodied as a grating disk 122'.
Further, the magnet 123 is embodied as a magnetic ring 123'.
Further, the magnetic ring 123' is an axially magnetized magnetic ring, and the N-S pole on the upper surface is divided into two halves. The end surface of the metal shaft 121 'is adhered to the magnetic ring 123' by glue. The upper portion of the magnetic ring 123 'is adhered to the grating disk 122' by glue.
Further, the shaft assembly 120 is fixed to the measured shaft 301, and when the measured shaft 301 rotates, the shaft assembly 120 is driven to rotate relative to the magnetic ring 123'. The magnetic field generated by the magnetic ring 123' in the magnetic field energy collecting device 200 rotates and turns over, and an electric pulse is generated and supplied to a register (not shown in the figure) for counting for multiple turns. When the measured shaft 301 drives the grating disc 122' to rotate, the reading head (not shown) converts the optical signal into an electrical signal, and then generates a circle of inner high-precision position information through (a processing circuit of) the circuit board 112.
Further, the shaft end face of the magnetic ring 123 'used for bonding and the matching shaft hole have perpendicularity requirements, and the upper surface and the lower surface of the magnetic ring 123' have parallelism requirements. The measured shaft 301 rotates to drive the shaft assembly 120 to rotate. Due to the form and position tolerance guarantee of all parts of the shaft assembly 120, the end face runout of the grating disk 122' is small in operation, and output signals are stable.
Further, the encoder of this embodiment preferably employs an optoelectronic split multi-turn encoder.
A second embodiment (the entire contents of the preferred embodiments are incorporated, and on the basis of the preferred embodiments, the encoder combination is applied to a compact encoder).
Preferably, the compact encoder 300 comprising the encoder assembly comprises an encoder assembly 100, the encoder assembly 100 comprises a body member 110 and a shaft member 120, wherein:
the body assembly 110 comprises a bracket 111, a circuit board 112 fixed to the bracket 111, and a magnetic field energy collecting device 200 mounted on the circuit board 112;
the shaft assembly 120 includes a shaft 121, a grating disk 122 and a magnet 123, the magnet 123 is fixedly connected to the shaft 121, the grating disk 122 is fixedly connected to the magnet 123, wherein:
the compact encoder 300 comprising the encoder assembly further comprises a bearing assembly 130, the bearing assembly 130 comprises two bearings 131, and the shaft assembly 120 is assembled in the body assembly 110 through the two bearings 131;
the body assembly 110 further includes a light source 113.
Further, the shaft 121 is embodied as a metal shaft 121'.
Further, the grating disk 122 is embodied as a grating disk 122'.
Further, the magnet 123 is embodied as a magnetic ring 123'.
Further, the magnetic ring 123' is an axially magnetized magnetic ring, and the N-S pole on the upper surface is divided into two halves. The end surface of the metal shaft 121 'is adhered to the magnetic ring 123' by glue. The upper portion of the magnetic ring 123 'is adhered to the grating disk 122' by glue.
Further, the shaft assembly 120 is fixed to the measured shaft 301, and when the measured shaft 301 rotates, the shaft assembly 120 is driven to rotate relative to the magnetic ring 123'. The magnetic field generated by the magnetic ring 123' in the magnetic field energy collecting device 200 rotates and turns over, and an electric pulse is generated and supplied to a register (not shown in the figure) for counting for multiple turns. When the measured shaft 301 drives the grating disc 122' to rotate, the reading head (not shown) converts the optical signal into an electrical signal, and then generates a circle of inner high-precision position information through (a processing circuit of) the circuit board 112.
Further, the shaft end face of the magnetic ring 123 'used for bonding and the matching shaft hole have perpendicularity requirements, and the upper surface and the lower surface of the magnetic ring 123' have parallelism requirements. The measured shaft 301 rotates to drive the shaft assembly 120 to rotate. Due to the form and position tolerance guarantee of all parts of the shaft assembly 120, the end face runout of the grating disk 122' is small in operation, and output signals are stable.
It is worth mentioning that the technical features of the magnetic field energy collecting device, the frame and the like related to the patent application of the present invention should be regarded as the prior art, and the specific structure, the working principle of the technical features and the control mode and the space arrangement mode that may be related to adopt the conventional selection in the field, which should not be regarded as the invention point of the present invention, and the present invention does not further specifically expand the detailed description.
It will be apparent to those skilled in the art that modifications and variations can be made in the above-described embodiments, or some features of the invention may be substituted or omitted, and any modification, substitution, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (9)
1. An encoder assembly comprising a body assembly and a shaft assembly, wherein:
the body assembly comprises a bracket, a circuit board fixed on the bracket and a magnetic field energy collecting device arranged on the circuit board;
the shaft assembly comprises a shaft, a grid disc and a magnet, wherein the magnet is fixedly connected to the shaft, and the grid disc is fixedly connected to the magnet.
2. The encoder assembly of claim 1, wherein the grating disk is embodied as one of a grating, a capacitive grating, an inductive encoder rotor.
3. The encoder assembly of claim 1, wherein the magnet is affixed to one of the end contact surface or the cylindrical contact surface, or both.
4. A compact encoder comprising an encoder assembly, the encoder assembly comprising a body member and a shaft member, wherein:
the body assembly comprises a bracket, a circuit board fixed on the bracket and a magnetic field energy collecting device arranged on the circuit board;
the axle subassembly includes an axle, a bars dish and a magnet, magnet fixed connection in the axle, bars dish fixed connection in magnet, wherein:
the body assembly further includes a light source.
5. The compact encoder as claimed in claim 4, characterized in that the shaft is embodied as a metal shaft, the grating disk is embodied as a grating disk and the magnet is embodied as a magnetic ring.
6. The compact encoder as claimed in claim 5, wherein the end face of the metal shaft is adhered to the magnetic ring by glue, and the upper portion of the magnetic ring is adhered to the grating disk by glue.
7. A compact encoder comprising an encoder assembly, the encoder assembly comprising a body member and a shaft member, wherein:
the body assembly comprises a bracket, a circuit board fixed on the bracket and a magnetic field energy collecting device arranged on the circuit board;
the axle subassembly includes an axle, a bars dish and a magnet, magnet fixed connection in the axle, bars dish fixed connection in magnet, wherein:
the compact encoder including the encoder assembly further includes a bearing assembly including two bearings through which the shaft assembly fits within the body assembly;
the body assembly further includes a light source.
8. The compact encoder as claimed in claim 7, wherein the shaft is embodied as a metal shaft, the grating disk is embodied as a grating disk, and the magnet is embodied as a magnetic ring.
9. The compact encoder as claimed in claim 8, wherein the end face of the metal shaft is adhered to the magnetic ring by glue, and the upper portion of the magnetic ring is adhered to the grating disk by glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020402007.7U CN211668524U (en) | 2020-03-26 | 2020-03-26 | Encoder composite structure and compact encoder comprising same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020402007.7U CN211668524U (en) | 2020-03-26 | 2020-03-26 | Encoder composite structure and compact encoder comprising same |
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| CN211668524U true CN211668524U (en) | 2020-10-13 |
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| CN202020402007.7U Active CN211668524U (en) | 2020-03-26 | 2020-03-26 | Encoder composite structure and compact encoder comprising same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237494A (en) * | 2021-05-27 | 2021-08-10 | 珠海格力电器股份有限公司 | Code wheel assembly and manufacturing method thereof, encoder and servo motor |
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2020
- 2020-03-26 CN CN202020402007.7U patent/CN211668524U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237494A (en) * | 2021-05-27 | 2021-08-10 | 珠海格力电器股份有限公司 | Code wheel assembly and manufacturing method thereof, encoder and servo motor |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220926 Address after: Room 401, Building 9, No. 36, Changsheng South Road, Economic and Technological Development Zone, Jiaxing City, Zhejiang Province, 314001 Patentee after: Zhejiang Ruiying Sensing Technology Co.,Ltd. Address before: 314001 Room 405, block B, Tsinghua Research Institute, No. 705, Asia Pacific Road, Nanhu District, Jiaxing City, Zhejiang Province Patentee before: JIAXING REAGLE SENSING TECHNOLOGY CO.,LTD. |
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| TR01 | Transfer of patent right |