CN211668525U - Encoder combined structure with underneath magnet and encoder comprising same - Google Patents
Encoder combined structure with underneath magnet and encoder comprising same Download PDFInfo
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- CN211668525U CN211668525U CN202020410761.5U CN202020410761U CN211668525U CN 211668525 U CN211668525 U CN 211668525U CN 202020410761 U CN202020410761 U CN 202020410761U CN 211668525 U CN211668525 U CN 211668525U
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Abstract
The utility model discloses an encoder integrated configuration that magnet was put down and the encoder that contains this integrated configuration. The encoder combined structure with the magnet arranged below comprises a body component, a shaft component and a magnet. 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 includes a shaft and a grating disk fixedly attached to the shaft. The magnet is arranged on a tested rotating shaft, and the magnet is partially or completely arranged in an inner ring cavity of the tested device rack or is positioned between the shaft assembly and the tested device rack. The utility model discloses an encoder integrated configuration that magnet put down and the encoder that contains the encoder integrated configuration that magnet put down, ingenious setting magnet is for the relative position of encoder, arranges the below of encoder in with the magnet for the volume of magnet no longer receives the restraint of the inside cavity size of encoder.
Description
Technical Field
The utility model belongs to the encoder field, concretely relates to encoder integrated configuration that magnet was put down and an encoder that contains encoder integrated configuration that magnet was put down.
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 that magnet was put down and an encoder that contains the encoder integrated configuration that magnet was put down.
The utility model discloses a magnetic body put down encoder integrated configuration and contain the magnetic body put down encoder integrated configuration's encoder, its main aim at sets up the magnet ingeniously for the relative position of encoder (whole), arranges the below of encoder in with the magnet.
The utility model discloses an encoder integrated configuration that the magnet was put down and the encoder that contains the encoder integrated configuration that the magnet was put down, its another aim at arranges the below of encoder in with the magnet for the volume of magnet no longer receives the restraint of the inside cavity size of encoder, and great volume can be accomplished to magnet itself.
The utility model discloses an encoder integrated configuration that the magnet was put down and the encoder that contains the encoder integrated configuration that the magnet was put down, its another aim at arranges the below of encoder in with the magnet for the inner structure of encoder no longer receives the restraint of magnet itself great volume (size) when the installation, adapts to the miniaturized development trend of encoder.
The utility model discloses a following technical scheme, the encoder integrated configuration that the magnet was put down is arranged in a equipment under test frame, and above-mentioned equipment under test frame has an inner circle cavity, the encoder integrated configuration that the magnet was put down includes a body subassembly, an axle subassembly and a magnet, 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 and a grid disc, and the grid disc is fixedly connected to the shaft;
the magnet is mounted on a rotating shaft to be tested, and the magnet is partially or completely arranged in the inner ring cavity of the stand of the device to be tested, or the magnet is positioned between the shaft assembly and the stand of the device to be tested.
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.
The utility model discloses still adopt following technical scheme, the encoder that contains the encoder integrated configuration that the magnet put down is arranged in a equipment under test frame, and above-mentioned equipment under test frame has an inner circle cavity, the encoder that contains the encoder integrated configuration that the magnet put down, including the encoder integrated configuration that a magnet put down, the encoder integrated configuration that the magnet put down includes a body subassembly, an axle subassembly and a magnet, 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 and a grid disc, and the grid disc is fixedly connected to the shaft;
the magnet is installed on a tested rotating shaft, the magnet is partially or completely arranged in the inner ring cavity of the tested device rack, or the magnet is positioned between the shaft assembly and the tested device rack, wherein:
the body assembly further includes a light source and a read head, the read head being mounted to the circuit board.
According to the above technical solution, as a further preferable technical solution of the above technical solution, the grating disk is specifically implemented as a grating disk.
According to the above-mentioned technical means, as a further preferable technical means of the above-mentioned technical means, the magnet is embodied as a magnetic ring.
According to the above technical means, as a further preferable technical means of the above technical means, the magnetic ring is attached to the rotation shaft to be measured.
According to the above technical solution, as a further preferable technical solution of the above technical solution, the apparatus rack to be tested further includes a bearing end cover, the bearing end cover has a cavity, and the magnetic ring is partially or completely disposed in the cavity.
According to the above technical means, as a further preferable technical means of the above technical means, the encoder including the encoder combination structure with the magnet disposed therebelow is a photoelectric multi-turn encoder.
The utility model discloses an encoder integrated configuration that magnet was put down and the encoder that contains the encoder integrated configuration that magnet was put down, its beneficial effect lies in, ingenious setting magnet for the relative position of encoder (whole), places the below of encoder in with the magnet for the volume of magnet no longer receives the restraint of the inside cavity size of encoder, and the magnet itself can accomplish great volume. Meanwhile, the internal structure of the encoder is not restrained by the larger volume (size) of the magnet when being installed, and the encoder is suitable for the development trend of miniaturization of the encoder.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of a preferred embodiment (encoder assembly structure with magnets underneath) of the present invention.
Fig. 2 is a schematic cross-sectional structure diagram of a first embodiment of the present invention (an encoder combined structure with a magnet disposed thereunder is applied to an encoder, such as an optoelectronic multi-turn encoder).
The reference numerals include: 100-encoder composite structure with magnet underneath; 110-a body component; 111-a scaffold; 112-a circuit board; 113-a light source; 114-a read head; 120-shaft assembly; 121-axis; 122-a grating disk; 122' -a grating disk; 130-a magnet; 130' -a magnetic ring; 200-a magnetic field energy harvesting device; 300-photoelectric multi-turn encoder; 301-measured axis of rotation; 302-device under test stand; 303-inner ring cavity; 304-a bearing end cap; 305-cavity.
Detailed Description
The utility model discloses an encoder integrated configuration that magnet was put down and the encoder that contains the encoder integrated configuration that magnet was put down combine preferred embodiment below, right the utility model discloses a detailed implementation does further description.
Referring to fig. 1-2 of the drawings, fig. 1 shows a cross-sectional structure of an embodiment of an encoder assembly with the magnets down; fig. 2 shows a cross-sectional structure of one embodiment of an encoder (photoelectric type multi-turn encoder) including an encoder composite structure in which magnets are disposed therebelow.
Preferred embodiments (mainly disclosing encoder combinations with magnets underneath).
Preferably, the magnet-under-positioned encoder assembly 100 is disposed in a device under test fixture 302, the device under test fixture 302 having an inner race cavity 303, the magnet-under-positioned encoder assembly 100 comprising a body member 110, a shaft member 120, and a magnet 130, 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 comprises a shaft 121 and a grating disc 122, and the grating disc 122 is fixedly connected to the shaft 121;
the magnet 130 is mounted to a rotating shaft under test 301, the magnet 130 is partially or completely embedded in the inner ring cavity 303 of the device under test housing 302, or the magnet 130 is located between the shaft assembly 120 and the device under test housing 302.
It should be noted that, in the above-mentioned technical solution, the magnet 130 may have two relative positional relationships, one of the relative positional relationships is "partially or completely disposed in the inner ring cavity 303 of the device under test rack 302", and the other relative positional relationship is "disposed between the shaft assembly 120 and the device under test rack 302" (the same applies to the embodiments described later).
It should be noted that, according to the above embodiments, the encoder assembly structure with a magnet underneath disclosed in this embodiment further includes several modified embodiments. 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); the magnet 130 may be mounted to a tray (not shown) that is mounted to the shaft to be measured.
A first embodiment (which is incorporated in its entirety, and on which an encoder assembly with magnets underneath is applied to an encoder, such as an opto-electronic type multi-turn encoder).
Preferably, the encoder with the encoder assembly structure with the magnet disposed thereunder is disposed in a device under test rack 302, the device under test rack 302 has an inner ring cavity 303, the encoder with the encoder assembly structure with the magnet disposed thereunder includes the encoder assembly structure 100 with the magnet disposed thereunder, the encoder assembly structure 100 with the magnet disposed thereunder includes a body assembly 110, a shaft assembly 120 and a magnet 130, 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 comprises a shaft 121 and a grating disc 122, and the grating disc 122 is fixedly connected to the shaft 121;
the magnet 130 is mounted on a rotating shaft under test 301, the magnet 130 is partially or completely embedded in the inner ring cavity 303 of the device under test stand 302, or the magnet 130 is located between the shaft assembly 120 and the device under test stand 302, wherein:
the body assembly 110 also includes a light source 113 and a read head 114, the read head 114 being mounted to the circuit board 112.
Further, the grating disk 122 is embodied as a grating disk 122'.
Further, the magnet 130 is embodied as a magnetic ring 130'. The upper side of the magnetic ring 130 'is divided into N-S poles in half, and the magnetic ring 130' is adhered to the rotation axis 301 to be measured.
Further, the device under test rack 302 further includes a bearing cover 304 (with a certain thickness), the bearing cover 304 has a cavity 305 (with a larger space), and the magnetic ring 130' is partially or completely disposed in the cavity 305 (the cavity 305 of the present embodiment is equivalent to the inner cavity 303 of the preferred embodiment).
Further, the magnetic field energy harvesting device 200 is mounted to the circuit board 112, and the magnetic field energy harvesting device 200 is located above the magnetic ring 130'.
Further, the measured rotating shaft 301 is fixedly connected with the magnetic ring 130'. When the encoder starts to work, the measured rotating shaft 301 drives the magnetic ring 130 'to rotate, the magnetic ring 130' rotates to cause the magnetic field to rotate, and the magnetic field rotates to enable the magnetic field energy collecting device 200 to generate electric pulses so as to count for multiple circles. The measured rotating shaft 301 simultaneously drives the grating disc 122 'to rotate, the reading head 114 converts an optical signal into an electrical signal, and the split circuit board 112' generates a circle of inner high-precision position information.
Further, the encoder of the present embodiment preferably employs a photoelectric multi-turn encoder, and the magnetic field energy collecting device may be utilized to perform multi-turn counting.
It should be noted that, according to the above embodiments, the encoder assembly structure with a magnet underneath disclosed in this embodiment further includes several modified embodiments. 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); the magnet 130 may be mounted to a tray (not shown) that is mounted to the shaft to be measured.
It is worth mentioning that the utility model discloses technical characteristics such as the magnetic field energy collection device that the patent application relates to, reading head, equipment under test frame can be regarded as prior art, and the concrete structure of these technical characteristics, theory of operation and the control mode that can involve, spatial arrangement mode adopt in the field conventional selection can, should not regard as the utility model discloses a point of invention is located, the utility model discloses a do not further specifically expand the detailing.
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 (8)
1. The utility model provides an encoder integrated configuration that magnet was put down, is arranged in a equipment under test frame, above-mentioned equipment under test frame has an inner circle cavity, its characterized in that includes a body subassembly, an axle subassembly and a magnet, 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 and a grid disc, and the grid disc is fixedly connected to the shaft;
the magnet is mounted on a rotating shaft to be tested, and the magnet is partially or completely arranged in the inner ring cavity of the stand of the device to be tested, or the magnet is positioned between the shaft assembly and the stand of the device to be tested.
2. The magnet-down encoder assembly of claim 1, wherein the grating disk is embodied as one of a grating, a capacitive grating, an inductive encoder rotor.
3. An encoder comprising an encoder assembly with a magnet underneath, the encoder assembly being disposed in a device under test stand, the device under test stand having an inner race cavity, the encoder assembly comprising an encoder assembly with a magnet underneath, the encoder assembly with a magnet underneath comprising a body assembly, a shaft assembly and a magnet, 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 and a grid disc, and the grid disc is fixedly connected to the shaft;
the magnet is installed on a tested rotating shaft, the magnet is partially or completely arranged in the inner ring cavity of the tested device rack, or the magnet is positioned between the shaft assembly and the tested device rack, wherein:
the body assembly further includes a light source and a read head, the read head being mounted to the circuit board.
4. Encoder comprising an encoder assembly with magnets underneath according to claim 3, characterized in that the grating disk is embodied as a grating disk.
5. Encoder comprising an encoder assembly with magnets underneath according to claim 3, characterized in that the magnets are embodied as magnetic rings.
6. The encoder as claimed in claim 5, wherein the magnetic ring is adhered to the shaft to be measured.
7. The encoder as claimed in claim 5, wherein the device under test housing further comprises a bearing cap, the bearing cap having a cavity, the magnetic ring being partially or completely disposed in the cavity.
8. The encoder comprising a magnet-down encoder assembly according to any of claims 3-7, wherein the encoder comprising a magnet-down encoder assembly employs a photoelectric multi-turn encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020410761.5U CN211668525U (en) | 2020-03-26 | 2020-03-26 | Encoder combined structure with underneath magnet and encoder comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020410761.5U CN211668525U (en) | 2020-03-26 | 2020-03-26 | Encoder combined structure with underneath magnet and encoder comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211668525U true CN211668525U (en) | 2020-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020410761.5U Active CN211668525U (en) | 2020-03-26 | 2020-03-26 | Encoder combined structure with underneath magnet and encoder comprising same |
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| Country | Link |
|---|---|
| CN (1) | CN211668525U (en) |
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2020
- 2020-03-26 CN CN202020410761.5U patent/CN211668525U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220923 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 |