CN201111132Y - Electromechanical type Gray code direct-read accounting device - Google Patents
Electromechanical type Gray code direct-read accounting device Download PDFInfo
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- CN201111132Y CN201111132Y CNU2007201150374U CN200720115037U CN201111132Y CN 201111132 Y CN201111132 Y CN 201111132Y CN U2007201150374 U CNU2007201150374 U CN U2007201150374U CN 200720115037 U CN200720115037 U CN 200720115037U CN 201111132 Y CN201111132 Y CN 201111132Y
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Abstract
The utility model discloses an electromechanical Gray code direct reading counter, which comprises a shell body, a number wheel, a carry gear, a signal sampling plate arranged at both sides of the number wheel as well as a photoelectric sensor, four concentric circular code channels from the first to the fourth are disposed on the end face of the number wheel from the inside to the outside, each circular code channel is composed of a plurality of open segments and non-open segments which are in alternative distribution, the first circular code channel is provided with two pairs of sensors with the spacing of 90 degrees correspondingly, and the rest circular code channels are respectively equipped with one pair of sensors. The counter adopts the technical proposal that the original structure including five sensors and five circular code channels is reduced to five sensors and four code channels through adjusting the circular code channel structure on the number wheel and the corresponding positions of the sensors, thereby solving the problems of code reading dead corner and error code of the current direct reading type counter, meanwhile, the counter also has the advantages of miniaturization, simple making technique, low cost and good stability, and is suitable for the industrialized volume production.
Description
Technical field
The utility model belongs to the counter field, particularly relating to a kind of is the direct-reading counter that sensor adopts the Gray code mode to encode with the semiconductor photoelectric device, mainly can be applicable to the field of water meter, ammeter, gas meter and all employing traditional mechanical formula decade counters.
Background technology
At present, existing various direct reading encoder counters such as single track multi-point sampling formula or multiple tracks multi-point sampling form all have defective or deficiency at different aspect on the market.Mainly show: the counter number wheel that has can't normally read coding when turning between two numerals, exist and read a yard dead angle; What have occurs error code easily when counter number wheel is in a plurality of state of taking turns upset simultaneously; The code channel of the code-wheel that has adopts many code channel settings to be difficult for miniaturization, and is too high to code-disc making and the requirement of sensor installation technology, and reduces technological requirement, then easily produces error code, thereby is not suitable for producing in enormous quantities; The number of sensors of the installation that has too much easily produces interference each other when reading yard concerning small-sized counter, and finished product is increased; Thereby the instability of transmission light path and light intensity that the photoconduction transmission structure of the employing complexity that has causes easily easily causes error code and cost of products to increase and the manufacturability of supplementary material is difficult to guarantee; The method that has the present mounting means of this type of direct-reading counter upper sensor all to adopt finished product element SMT to mount again, so its installation accuracy can't satisfy the requirement of accurately reading sign indicating number, so the direct reading encoder counter fails still so far to realize that industrialization produces in batches.
Summary of the invention
In order to solve above-mentioned technical matters, the purpose of this utility model provides a kind of electromechanical Gray code direct-reading counter, by adjusting annulus code channel structure and corresponding sensing station on the digit wheel, the problems such as a yard dead angle, error code of reading that existing direct-reading counter exists have been solved, simultaneously, also have advantages such as miniaturization, manufacture craft are simple, with low cost, good reliability.
To achieve the above object, the utility model has adopted following technical scheme:
A kind of electromechanical Gray code direct-reading counter, comprise housing, several cylinders are printed on digital coaxial digit wheel, the carry gear, be located at the signal sampling plate of digit wheel both sides and establish thereon some photoelectric sensor, the transmission gear interlock that lowest order digit character wheel and housing are outer, described digit wheel end face is provided with and is provided with first to fourth 4 donut code channels from the inside to the outside, described annulus code channel is made of some dead bands that distribute alternately and non-dead band, the corresponding two pairs of sensors of 90 ° of settings at interval of the described first annulus code channel, each corresponding pair of sensors of all the other annulus code channels, circuit is read in described sensor connection, wherein
The position angle of two pairs of sensors on the signal sampling plate of the described corresponding first annulus code channel is made as 0 ° and 90 °, and then the marginal angle of the saturating dead band of this annulus code channel correspondingly and non-dead band is respectively: 0 °, and 180 °;
The position angle of the pair of sensors of the described corresponding second annulus code channel on the signal sampling plate is made as 90 °, and then the marginal angle of the saturating dead band of this annulus code channel correspondingly and non-dead band is respectively: 42 °, and 138 °, 222 °, 318 °;
The position angle of the pair of sensors of described corresponding the 3rd annulus code channel on the signal sampling plate is made as 90 °, and then the marginal angle of the saturating dead band of this annulus code channel correspondingly and non-dead band is respectively: 18 °, and 66 °, 114 °, 162 °, 198 °, 246 °, 294 °, 342 °;
The position angle of the pair of sensors of described corresponding the 4th annulus code channel on the signal sampling plate is made as 90 °, and then the marginal angle of the saturating dead band of this annulus code channel correspondingly and non-dead band is respectively: 9 °, and 30 °, 54 °, 78 °, 102 °, 126 °, 150 °, 171 °, 189 °, 210 °, 234 °, 258 °, 282 °, 306 °, 330 °, 351 °.
As preferably, above-mentioned correspondence second, third, three pairs of sensors of the 4th annulus code channel and the wherein pair of sensors of the corresponding first annulus code channel be arranged on same the radius.
Can be provided with annulus between 4 above-mentioned donut code channels at interval, also can not establish annulus at interval, promptly the saturating dead band of 4 annulus code channels partly is interconnected.
As preferably, above-mentioned signal sampling plate is substrate with the pcb board, directly is packaged with the sensor chip nude film on the pcb board.
As preferably, be provided with the plastics housing of optically focused around the sensor chip.
The utility model is owing to adopted above technical scheme, by adjusting annulus code channel structure and corresponding sensing station on the digit wheel, the structure of original 5 annulus code channels of 5 sensors is reduced to 4 code channels of 5 sensors, simultaneously by stages such as original digit wheel end face 30 are constituted scale-of-two Gray code form and be revised as 32 non-five equilibrium interval structures formation scale-of-two Gray code forms, solved yard dead angle of reading of existing direct-reading counter existence, problems such as error code, simultaneously, also has miniaturization, manufacture craft is simple, with low cost, advantages such as good reliability are suitable for industrialization and produce in enormous quantities.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A-A view of Fig. 1.
Fig. 3 is the structural representation of digit wheel among the embodiment 1.
Fig. 4 is the structural representation of digit wheel among the embodiment 2.
Fig. 5 is that sensor of the present utility model is provided with synoptic diagram.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is made a detailed explanation.
Embodiment 1: as Fig. 1, a kind of electromechanical Gray code direct-reading counter shown in Figure 2, comprise housing 8, be provided with digital wheel shaft 7 and carry gear shaft 10 in the housing 8, numeral wheel shaft 7 is provided with 5 cylinders and is printed on digital digit wheel 1, carry gear shaft 10 is provided with carry gear 9, be provided with signal sampling plate 4 in each digit wheel 1 both sides, 5 pairs of photoelectric sensors 3 are set on each signal sampling plate 4, transmission gear interlock outside lowest order digit character wheel and the housing 8, adjacent figure place character wheel is by carry gear 9 and carry moving tooth 6 mechanical drive carries, described digit wheel 1 end face is provided with and is provided with first to fourth 4 donut code channels 2 from the inside to the outside, described annulus code channel 2 is made of some dead bands that distribute alternately and non-dead band, the corresponding two pairs of sensors of 90 ° of settings at interval of the described first annulus code channel, each corresponding pair of sensors of all the other annulus code channels, circuit is read in described sensor 3 connections; Wherein, as shown in Figure 3, described correspondence second, third, three pairs of sensors of the 4th annulus code channel and the wherein pair of sensors of the corresponding first annulus code channel be arranged on same the radius, like this,
The marginal angle of above-mentioned saturating dead band of the first annulus code channel and non-dead band is respectively: 0 °, and 180 °;
The marginal angle of above-mentioned saturating dead band of the second annulus code channel and non-dead band is respectively: 42 °, and 138 °, 222 °, 318 °;
The marginal angle of above-mentioned saturating dead band of the 3rd annulus code channel and non-dead band is respectively: 18 °, and 66 °, 114 °, 162 °, 198 °, 246 °, 294 °, 342 °;
The marginal angle of above-mentioned saturating dead band of the 4th annulus code channel and non-dead band is respectively: 9 °, and 30 °, 54 °, 78 °, 102 °, 126 °, 150 °, 171 °, 189 °, 210 °, 234 °, 258 °, 282 °, 306 °, 330 °, 351 °.
In the present embodiment, be provided with annulus interval 5 between 4 above-mentioned annulus code channels 2; As shown in Figure 5, described signal sampling plate 4 is substrate with the pcb board, directly be packaged with sensor chip nude film 31 on the pcb board, be provided with the plastics housing 34 of optically focused around the described sensor chip, be that the signal sampling plate is substrate with the pcb board, be equipped with copper foil electrode in two side, 5 light transmitting chip nude films or photosensitive receiving chip nude film directly are installed on the copper foil electrode, by a gold gold thread 32 is connected chip nude film 31 and copper foil electrode, plastics housing 34 is installed on pcb board, plastics housing 34 has open-work at chip position, then, perfusion potting resin 33 is finished Chip Packaging in open-work, has so not only solved the not enough problem of senser element SMT paster precision, has also solved sensor chip light emergence angle and has produced the problem of phase mutual interference than Da Yi.
As shown in Figure 3,4 code channels on the digit wheel different-diameter can be divided into the whole circumference of code wheel 32 intervals, each interval all has one independently also to be unique correspondence coding, and the code set that each interval is adjacent two intervals only differs a sign indicating number, be the Gray code form, and form reflected code.No matter which angle it turns to when the digit wheel code-disc is made circular motion with respect to the signal sampling plate, 5 pairs of photoelectric sensors of digit wheel code-wheel both sides signal sampling plate are distinguished 4 code channels on corresponding and the digit wheel code-wheel, each code channel all is made up of saturating sky and not saturating empty two parts, photoelectric sensor will be realized break-make by the saturating dead slot and the entity part of corresponding code channel like this, thereby produce a group coding signal, like this, by 0～9 on the digit wheel cylinder totally 10 numbers the digit wheel circumference is divided into 10 digital sections, then each digital section comprises between 3 above-mentioned code areas at least, be that each number comprises at least 3 Gray codes, avoided the critical reading problem of carry.5 digit wheels are then represented five in the decimal system respectively, like this, on the digit wheel that flow mechanical detection mechanism on the instrument is reflected to lowest order by transmission gear with the variation of flow is had good luck, scan and read binary coded signal on each digit wheel by reading circuit control sensor, finally determine reading and pass to the external data collector by the single-chip microcomputer conversion.
Embodiment 2: a kind of electromechanical Gray code direct-reading counter as described in Figure 4, the saturating dead band and the non-dead band of 4 annulus code channels 2 among the embodiment 1 are exchanged, and annulus is not set at interval between each code channel, promptly saturating dead band partly is interconnected, and other are all identical with embodiment 1.
The utility model is not limited to above embodiment; no matter be that the saturating sky and the non-hollow part branch of the entity position of code-wheel in the foregoing description are changed; rotate the equal angular layout simultaneously with arbitrary code channel with its corresponding sensor; still the width dimensions of the saturating dead band part of each code channel is enlarged to and is interconnected; be equivalent structure of the present utility model, all will fall within the protection domain of the present utility model.
Claims (6)
1. electromechanical Gray code direct-reading counter, comprise housing (8), several cylinders are printed on digital coaxial digit wheel (1), carry gear (9), be located at the signal sampling plate (4) of digit wheel (1) both sides and establish thereon some photoelectric sensor (3), the transmission gear interlock that lowest order digit character wheel and housing (8) are outer, it is characterized in that, described digit wheel (1) end face is provided with and is provided with first to fourth 4 donut code channels (2) from the inside to the outside, described annulus code channel (2) is made of some dead bands that distribute alternately and non-dead band, the corresponding two pairs of sensors of 90 ° of settings at interval of the described first annulus code channel, each corresponding pair of sensors of all the other annulus code channels, circuit is read in described sensor (3) connection, wherein
The position angle of two pairs of sensors on signal sampling plate (4) of the described corresponding first annulus code channel is made as 0 ° and 90 °, and then the marginal angle of the saturating dead band of this annulus code channel correspondingly and non-dead band is respectively: 0 °, and 180 °;
The position angle of the pair of sensors of the described corresponding second annulus code channel on signal sampling plate (4) is made as 90 °, and then the marginal angle of the saturating dead band of this annulus code channel correspondingly and non-dead band is respectively: 42 °, and 138 °, 222 °, 318 °;
The position angle of the pair of sensors of described corresponding the 3rd annulus code channel on signal sampling plate (4) is made as 90 °, then the marginal angle of the saturating dead band of this annulus code channel correspondingly and non-dead band is respectively: 18 °, 66 °, 114 °, 162 °, 198 °, 246 °, 294 °, 342 °;
The position angle of the pair of sensors of described corresponding the 4th annulus code channel on signal sampling plate (4) is made as 90 °, and then the marginal angle of the saturating dead band of this annulus code channel correspondingly and non-dead band is respectively: 9 °, and 30 °, 54 °, 78 °, 102 °, 126 °, 150 °, 171 °, 189 °, 210 °, 234 °, 258 °, 282 °, 306 °, 330 °, 351 °.
2. a kind of electromechanical Gray code direct-reading counter according to claim 1, it is characterized in that, described correspondence second, third, three pairs of sensors of the 4th annulus code channel and the wherein pair of sensors of the corresponding first annulus code channel be arranged on same the radius.
3. a kind of electromechanical Gray code direct-reading counter according to claim 1 and 2 is characterized in that, is provided with annulus (5) at interval between described 4 annulus code channels (2).
4. a kind of electromechanical Gray code direct-reading counter according to claim 1 and 2 is characterized in that the saturating dead band of described 4 annulus code channels (2) partly is interconnected.
5. a kind of electromechanical Gray code direct-reading counter according to claim 1 and 2 is characterized in that described signal sampling plate (4) is substrate with the pcb board, directly is packaged with sensor chip nude film (31) on the pcb board.
6. a kind of electromechanical Gray code direct-reading counter according to claim 5 is characterized in that, is provided with the plastics housing (34) of optically focused around the described sensor chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201150374U CN201111132Y (en) | 2007-09-24 | 2007-09-24 | Electromechanical type Gray code direct-read accounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201150374U CN201111132Y (en) | 2007-09-24 | 2007-09-24 | Electromechanical type Gray code direct-read accounting device |
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| Publication Number | Publication Date |
|---|---|
| CN201111132Y true CN201111132Y (en) | 2008-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201150374U Expired - Lifetime CN201111132Y (en) | 2007-09-24 | 2007-09-24 | Electromechanical type Gray code direct-read accounting device |
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| Country | Link |
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| CN (1) | CN201111132Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104766121A (en) * | 2015-03-13 | 2015-07-08 | 东莞捷荣技术股份有限公司 | Counting coded disc |
| CN106679699A (en) * | 2017-01-19 | 2017-05-17 | 济南瑞泉电子有限公司 | Reflective gauging table |
-
2007
- 2007-09-24 CN CNU2007201150374U patent/CN201111132Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104766121A (en) * | 2015-03-13 | 2015-07-08 | 东莞捷荣技术股份有限公司 | Counting coded disc |
| CN104766121B (en) * | 2015-03-13 | 2017-09-22 | 康凯 | A kind of counter code disc |
| CN106679699A (en) * | 2017-01-19 | 2017-05-17 | 济南瑞泉电子有限公司 | Reflective gauging table |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hangzhou Huasheng Electronic Appliance Technology Co., Ltd. Assignor: Hangzhou Pioneer Electronic Technology Co., Ltd.|Hangzhou Huasheng Electronic Appliance Technology Co., Ltd. Contract fulfillment period: 2008.6.1 to 2017.9.23 Contract record no.: 2008330000124 Denomination of utility model: Electromechanical type Gray code direct-read accounting device Granted publication date: 20080903 License type: Exclusive license Record date: 20080714 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.6.1 TO 2017.9.23 Name of requester: HANGZHOU HUA SHENG ELECTRONICS TECHNOLOGY CO. Effective date: 20080714 |
|
| CP03 | Change of name, title or address |
Address after: Hangzhou City, Zhejiang province 310052 Binjiang District bin An Lu 1186-1 Co-patentee after: Hangzhou Huasheng Electronic Appliance Technology Co., Ltd. Patentee after: Hangzhou Pioneer Electronic Technology Co., Ltd. Address before: 310025, No. 1186-1, bin an road, Binjiang (high tech) zone, Hangzhou, Zhejiang Co-patentee before: Hangzhou Huasheng Electronic Appliance Technology Co., Ltd. Patentee before: Hangzhou Pioneer Electronic Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080903 |
|
| CX01 | Expiry of patent term |