CN202024797U - Magnetic induction pulse device used on intelligent instrument - Google Patents
Magnetic induction pulse device used on intelligent instrument Download PDFInfo
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- CN202024797U CN202024797U CN201120075970XU CN201120075970U CN202024797U CN 202024797 U CN202024797 U CN 202024797U CN 201120075970X U CN201120075970X U CN 201120075970XU CN 201120075970 U CN201120075970 U CN 201120075970U CN 202024797 U CN202024797 U CN 202024797U
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Abstract
The utility model relates to a magnetic induction pulse device used on an intelligent instrument, aiming at providing the magnetic induction pulse device used on the intelligent instrument, which has the advantages that other pulse sampling elements are adopted, so the service life of the intelligent instrument is prolonged, the reliability is high, and the metering is accurate. The magnetic induction pulse device comprises a magnetic induction device and a circuit board, the magnetic induction device is arranged on the surface of the instrument, the circuit board is connected with the magnetic induction device and is provided with a pulse signal processing circuit, the magnetic induction device comprises a magnet and at least one static non-contact type magnetic induction sensor, the magnet is arranged in the eccentric position on a dial pointer and does circumference rotation along the rotation of the pointer, and the static non-contact type magnetic induction sensor is arranged besides the dial pointer, can sense the magnet and is made of magnetic metal films. The pulse sampling element adopts the static magnetic induction sensor, the size of the magnetic induction pulse device is reduced, the service life is prolonged, the misoperation caused by vibration is avoided, the magnetic induction pulse device is prevented from blocking the pointer dial, the reading is convenient, and the cost of equipment is reduced.
Description
Technical field
The utility model relates to instrument and makes the field, and in particular, the utility model is about improving a kind of magnetic induction pulses device of intelligence instrument pulse generating device life-span and reliability.
Background technology
At present, China's intelligence instrument (IC-card water meter, gas meter, calorimeter, remote transmitting water meter, gas meter, calorimeter) go up the most tongue tubes that adopt of the pulse generating device of using as gathering sensing element, have a lot of problems in the use: 1. tongue tube is that two reeds are encapsulated in the glass shell, very fragile, the strictness of installation manufacturing technique requirent, regular meeting causes glass tube to produce the subtle fine crack of naked eyes when the crooked making of pin, enter moisture in the glass tube and make, cause insulation resistance to descend, influence serviceable life; Pin is stressed can to cause reed short circuit or open circuit when serious, and these faults all can make the intelligence instrument impulse sampling produce rub-out signal; Particularly adopt the intelligence table of double dry-reed pipe sampling, when insulation resistance decline appears in a tongue tube, can cause magnetic to attack and close the valve fault, influence the user and normally use.2. manufacturer is in tongue tube manufacturing process, when the packaged glass pipe, sometimes also can be in pipe entrapped air pockets, in a single day bubble vacillates between reed contact, also can make intelligence instrument produce rub-out signal, even the influence table is counted function.3. tongue tube two contact reeds disconnect owing to magnetic induction or closed finish by mechanical action, the gap of two reeds is very little, reed can make its closure because of extraneous vibration vibrates also, send rub-out signal, especially intellectual water meter, the vibration of table body takes place all can cause in big or water hammer because of pipeline pressure fluctuation, thereby causes reed vibrates to make the metering mistake.4. when tongue tube was used for the sampling of intelligence table, tongue tube was to be placed in the protective sleeve, and protective sleeve is installed in list index scale top or watch glass top; because of the tongue tube volume bigger; protective sleeve can block the pointer scale, causes the reading difficulty, does not meet JJG162-2009, GB778-2007 standard-required.
Patent Office of the People's Republic of China has announced a CN101344418A document on January 14th, 2009, name is called the flow sensor that is used for intelligent gas, water, electricity, calorimeter, and tongue tube of this sensor is the counting tongue tube; Two tongue tubes are auxiliary tongue tubes, and protection and collaborative trunk reed pipe reliably measure; Magnet steel is that the rotation that characterizes the flowmeter digit wheel is changed out with its change of magnetic field strength, the change of magnetic field strength of tongue tube sensing magnet steel is also expressed with switching signal, and the switching signal of tongue tube output realizes the flow direction and physical quantity and input such as flow, magnetic interference through the primary controller logical decision of intelligence instrument; The detection of flow is that the number of times of stored count tongue tube output switching signal is realized; Whether the detection of magnetic interference is to judge to have in three tongue tubes to have two or more dry-reed tube switch to work simultaneously.The shortcoming of this sensor adopts tongue tube as switching signal (pulse signal) sampling element exactly, causes intelligence instrument short serviceable life, easy break-down, and metering is inaccurate.
Summary of the invention
The utility model causes intelligence instrument short serviceable life for the impulse sampling element that solves the prior art existence adopts tongue tube, easy break-down, the shortcoming that metering is inaccurate, thus a kind of magnetic induction pulses device on the intelligence instrument of being used for that adopts other impulse sampling element to improve intelligence instrument serviceable life, reliability height, accurate measurement is provided.
The technical scheme that its technical matters that solves the utility model adopts is: the utility model comprises the magnetic-inductive device that is arranged on the instrument surface and the wiring board that is provided with the pulse signal treatment circuit that links to each other with magnetic-inductive device, but magnetic-inductive device comprises and is installed in eccentric position on the dial pointer and rotates the static contactless magnetic induction sensor of being made by magnetic metallic film that the magnet of doing the circumference rotation and at least one are installed in induced magnet by the dial pointer with pointer.The static contactless magnetic sensors that magnetic induction sensor adopts magnetic metal (NiFe) film to make, owing in the conducting of magnetic induction sensor and disconnection process, do not have mechanical action, thus have do not have wearing and tearing, volume is little, simple in structure, in light weight, life-span length, vibration resistance, be not afraid of humidity, installation is simple, highly sensitive, power consumption is little, cost is low advantage; Magnet is installed in the pointer eccentric position on the gauge pointer scale, magnet rotates with pointer and makes circular motion, magnetic induction sensor is installed in pointer scale next door, pointer rotates a circle, magnet near magnetic induction sensor once, the magnetic induction sensor conducting once, by effective metrical pulse of output after the pulse signal processing circuit processes, this metrical pulse measures for follow-up equipment and adds up and the usefulness of fault judgement.
As preferably, magnetic induction sensor is two, and wiring board is provided with groove, and the width of groove is greater than the diameter of described pointer scale, and magnetic induction sensor is installed in the two ends on wiring board groove next door respectively.Magnetic induction sensor is two and is installed in wiring board groove two ends respectively, magnet can not be simultaneously near two magnetic induction sensors, i.e. not conducting simultaneously of magnetic induction sensor under normal circumstances, when intelligence instrument is subjected to the magnetic attack, usually can make the conducting simultaneously of two magnetic induction sensors, therefore two magnetic induction sensors are installed can accurately judge whether to be subjected to the magnetic attack, thereby follow-up equipment can accurately be reported to the police, and improves the metering accuracy of intelligence instrument; Wiring board is provided with groove simultaneously, and the pointer scale is in groove, and magnetic induction sensor is installed in the groove two ends, can avoid magnetic induction sensor to block the pointer scale, makes things convenient for user's reading.
As preferably, the outside of panel board is provided with the ring-shaped frame that is connected with the panel board wringing fit, and the bottom of wiring board is stuck in the annulus of framework, and frame inner wall is stretched out at the two ends of wiring board groove respectively and instrument dial plate outer wall extends to the pointer scale outside.Framework is enclosed within panel board outside and panel board wringing fit, and the base plate of wiring board is stuck in the annulus of framework, and the groove two ends of wiring board are stretched in the panel board from frame inner wall, have advantage simple in structure, easy for installation.
As preferably, the two ends of wiring board groove are respectively equipped with the cup-shaped protective cover that shelters from the wiring board groove ends, and the opening that stretches out for the wiring board groove ends on the protective cover closed frame also is connected as a single entity with described framework.Protective cover can prevent that water, the gas in the panel board from contacting with magnetic induction sensor and wiring board.
As preferably, framework and protective cover are one by plastic pressing forming.Plastics have certain plasticity and elasticity, utilize its plasticity to make things convenient for the installation of wiring board, utilize its elasticity to make things convenient for the fixing of wiring board, and plastic pressing forming technology is simple, and is with low cost.
As preferably, wiring board is connected to single-chip microcomputer.Single-chip microcomputer can be used as the subsequent processing device of pulse signal, utilizes single-chip microcomputer to carry out the add up work of (i.e. metering), fault diagnosis, fault alarm, failure logging of pulse signal.
The beneficial effects of the utility model are: the impulse sampling element adopts the static-magnetic induction pick-up, reduced the volume of magnetic induction pulses device, improved serviceable life, avoided the misoperation that produces because of vibration, avoided the magnetic induction pulses device to block the pointer scale, make things convenient for reading, reduced equipment cost.
Description of drawings
Fig. 1 is a kind of structural representation that the utility model is used for the magnetic induction pulses device on the intelligence instrument.
Among the figure: 1. panel board, 2. pointer scale, 3. magnetic induction sensor, 4. wiring board, 5. framework, 6. protective cover, 7. magnet, 8. pointer.
Embodiment
Below by specific embodiment, and in conjunction with the accompanying drawings the technical solution of the utility model is described in further detail.
Embodiment:
Present embodiment is an example with the magnetic induction pulses device that is installed on the intellectual water meter, referring to Fig. 1, the single-chip microcomputer that comprises the ring-shaped frame 5 that is installed in the magnet on the pointer 87 in the pointer scale 2, is arranged on panel board 1 outside, is installed in wiring board 4 in the framework 5, is installed in two magnetic induction sensors 3 on the wiring board 4 and links to each other with pulse signal treatment circuit that wiring board 4 is provided with.Magnet 7 is installed in the eccentric position of pointer 8 rotation centers, and when pointer 8 rotations, magnet 7 is made circular motion; Framework 5 integral body in the form of a ring, framework 5 is enclosed within the outside of panel board 1, is provided with two at framework 5 inwalls and protrudes cup-shaped protective covers 6, protective cover 6 extend in the panel board 1 from the side of panel board 1, framework 5 comprises that protective cover 6 is an one by plastic pressing forming; Wiring board 4 is provided with groove; wiring board 4 bodies are stuck in the annulus of framework 5; the two ends of wiring board 4 grooves are stretched in two protective covers 6 of framework 5; the two ends of groove extend to the both sides of pointer scale 2; two magnetic induction sensors 3 are installed in the two ends on groove next door respectively, when magnet 7 turns near magnetic induction sensor 3 positions, and magnetic induction sensor 3 conductings; when magnet 7 was rotated away from magnetic induction sensor 3 positions, magnetic induction sensor 3 disconnected.
The static contactless magnetic sensors that magnetic induction sensor 3 adopts magnetic metal (NiFe) film to make does not have mechanical motion in conducting and disconnection process.
Magnetic induction sensor 3 links to each other with single-chip microcomputer by the pulse signal treatment circuit on the wiring board 4.
During work, magnet 7 rotates with the rotation of pointer 8, and magnet 7 near two magnetic induction sensors 3, makes two magnetic induction sensor 3 alternate conduction in succession, alternately export two pulse signals by the pulse signal processing circuit processes, the single-chip microcomputer pulse signals is counted and can be finished gage work; Whether single-chip microcomputer alternately occurs monitoring to finish whether operate as normal is monitored to magnetic induction sensor 3 to two pulse signals; When being subjected to magnetic, attacks by magnetic induction sensor 3, two magnetic induction sensor 3 conductings simultaneously, and two-way pulse meeting is exported simultaneously, and single-chip microcomputer can judge that by this magnetic induction sensor 3 has been subjected to the magnetic attack, reports to the police immediately, writes down the zero-time that magnetic is attacked simultaneously.
Above embodiment is one of preferred plan of the present utility model, is not that the utility model is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim puts down in writing.
Claims (6)
1. magnetic induction pulses device that is used on the intelligence instrument, comprise the magnetic-inductive device that is arranged on the instrument surface and the wiring board that is provided with the pulse signal treatment circuit that links to each other with magnetic-inductive device, it is characterized in that: described magnetic-inductive device comprises and is installed in eccentric position on the dial pointer and rotates the static contactless magnetic induction sensor of being made by magnetic metallic film that the magnet of doing the circumference rotation and at least one are installed in by the described dial pointer, can respond to described magnet with pointer.
2. a kind of magnetic induction pulses device that is used on the intelligence instrument according to claim 1, it is characterized in that: described magnetic induction sensor is two, described wiring board is provided with groove, the width of described groove is greater than the diameter of described pointer scale, and described magnetic induction sensor is installed in the two ends on described wiring board groove next door respectively.
3. a kind of magnetic induction pulses device that is used on the intelligence instrument according to claim 2, it is characterized in that: the outside of described panel board is provided with the ring-shaped frame that is connected with described panel board wringing fit, the bottom of described wiring board is stuck in the annulus of described framework, and described frame inner wall is stretched out at the two ends of described wiring board groove respectively and instrument dial plate outer wall extends to the described pointer scale outside.
4. a kind of magnetic induction pulses device that is used on the intelligence instrument according to claim 3; it is characterized in that: the two ends of described wiring board groove are respectively equipped with the cup-shaped protective cover that shelters from the wiring board groove ends, and the opening that stretches out for the wiring board groove ends on the described protective cover closed frame also is connected as a single entity with described framework.
5. a kind of magnetic induction pulses device that is used on the intelligence instrument according to claim 4, it is characterized in that: described framework and described protective cover are one by plastic pressing forming.
6. according to claim 1 or 2 or 3 or 4 or 5 described a kind of magnetic induction pulses devices that are used on the intelligence instrument, it is characterized in that: described wiring board is connected to single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120075970XU CN202024797U (en) | 2011-03-22 | 2011-03-22 | Magnetic induction pulse device used on intelligent instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120075970XU CN202024797U (en) | 2011-03-22 | 2011-03-22 | Magnetic induction pulse device used on intelligent instrument |
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| Publication Number | Publication Date |
|---|---|
| CN202024797U true CN202024797U (en) | 2011-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120075970XU Expired - Fee Related CN202024797U (en) | 2011-03-22 | 2011-03-22 | Magnetic induction pulse device used on intelligent instrument |
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| CN (1) | CN202024797U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034382A (en) * | 2014-06-30 | 2014-09-10 | 江苏赛达电子科技有限公司 | Up-sample separated non-magnetic type remote water meter |
| CN104048723A (en) * | 2014-06-30 | 2014-09-17 | 江苏赛达电子科技有限公司 | Separation non-magnetic type remote water meter with sampling on large pointer |
| CN104048724A (en) * | 2014-06-30 | 2014-09-17 | 江苏赛达电子科技有限公司 | Top-sampling separated remote water meter |
| CN111623843A (en) * | 2020-07-07 | 2020-09-04 | 深圳市前海海洋仪表科技有限公司 | Anti-magnetic induction type water meter |
-
2011
- 2011-03-22 CN CN201120075970XU patent/CN202024797U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034382A (en) * | 2014-06-30 | 2014-09-10 | 江苏赛达电子科技有限公司 | Up-sample separated non-magnetic type remote water meter |
| CN104048723A (en) * | 2014-06-30 | 2014-09-17 | 江苏赛达电子科技有限公司 | Separation non-magnetic type remote water meter with sampling on large pointer |
| CN104048724A (en) * | 2014-06-30 | 2014-09-17 | 江苏赛达电子科技有限公司 | Top-sampling separated remote water meter |
| CN104048723B (en) * | 2014-06-30 | 2017-06-27 | 江苏赛达电子科技有限公司 | Big pointer up-sampling separates magnetism-free type remote transmitting water meter |
| CN104034382B (en) * | 2014-06-30 | 2017-11-21 | 江苏赛达电子科技有限公司 | Up-sampling separation magnetism-free type remote transmitting water meter |
| CN111623843A (en) * | 2020-07-07 | 2020-09-04 | 深圳市前海海洋仪表科技有限公司 | Anti-magnetic induction type water meter |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111102 Termination date: 20130322 |