CN2529211Y - Flow sensor with magnetic shield cover - Google Patents
Flow sensor with magnetic shield cover Download PDFInfo
- Publication number
- CN2529211Y CN2529211Y CN 02210547 CN02210547U CN2529211Y CN 2529211 Y CN2529211 Y CN 2529211Y CN 02210547 CN02210547 CN 02210547 CN 02210547 U CN02210547 U CN 02210547U CN 2529211 Y CN2529211 Y CN 2529211Y
- Authority
- CN
- China
- Prior art keywords
- shield cover
- fixed
- housing
- flow sensor
- sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a flux sensor provided with a magnetic shield cover; an outer shield cover is fixed on a watch head of the sensor; a shell body of a counter is fixed on the outer shield cover; an inner shield cover is fixed outside of a magnetic excitation component; a rotary clip seat is pressed inside a clip mouth of a waterproof upper cover; the outer shield cover is fixed on a fixing pole of the rotary clip seat; the rotary clip seat can drive the outer shield cover to rotate inside the clip mouth of the waterproof upper cover. The utility model has the advantages of much stronger anti-jamming ability and much better working stability. The accurate degree can reach up to plus or minus 3 percent.
Description
Technical field
The utility model belongs to flow sensor, particularly IC-card water meter, remote transmitting water meter and calorimeter etc.
Background technology
At present, flow sensor in the IC-card water meter of domestic production, remote transmitting water meter, the calorimeter all is a multi beam stream rotary wind type structure, and the housing of gauging table is the copper body, and magnetic pumping produces traffic pulse, the frequency of pulse signal is directly proportional with flow, calculates flow by the counter on the gauge outfit.In application, find above-mentioned flow sensor externally under the interference of high-intensity magnetic field its pulsed frequency reduce, produce pulse signal and lose, make the flow detection precision exceed required standard.
Summary of the invention
The purpose of this utility model is to provide a kind of can resist the flow sensor that extraneous high-intensity magnetic field disturbs.As shown in drawings, flow sensor comprises the multi beam stream rotor in flowmeter housing 9, counter housing 2, the watch shell etc., on the gauge outfit of sensor, fix an external shield 5, the counter housing is fixed on the external shield, for strengthening shield effectiveness, can also fix an inner shield 11 in magnetic pumping assembly 12 peripheries.
The utlity model has stronger antijamming capability, good operating stability, accuracy can reach ± and 3%.
Description of drawings
Accompanying drawing is the utility model structural representation, among the figure: 1, calculator panel; 2, counter housing; 3, connect snib; 4, signal lead; 5, external shield; 6, rotation deck; 7, fixed leg; 8, waterproof loam cake; 9, housing; 10, external shield fixed leg; 11, inner shield; 12, magnetic pumping assembly; 13, protecting crust; 14, temperature sensor mounting hole; 15, hold-down nut.
Embodiment
One, as shown in drawings, the rotation deck is pressed in the bayonet socket of waterproof loam cake, and external shield is fixed on the fixed leg of rotation deck, and the rotation deck can drive in the bayonet socket of external shield on waterproof cover and rotate, thereby use the rotation of counter housing, make the display of counter be in the optimal viewing angle.Irony inner shield internal diameter is 60 millimeters, and is high 15 millimeters, and 0.8 millimeter of wall thickness is fixed on the fixed leg of magnetic pumping assembly.External shield is fixed on 3 fixed legs of rotation deck, and counter housing and external shield are inserted fixing.
Two, as shown in drawings, this structure is used for heat sensor, and a mounting hole is arranged in the water side of housing, and digital temperature sensor DS18B20 is installed in the hole, and digital temperature sensor is encapsulated in the protecting crust 13, and other structures are the same.
Claims (4)
1, the flow sensor that has magnetic shielding cover comprises that the multi beam in housing, counter housing, the housing flows rotor etc., it is characterized in that fixing on the gauge outfit of sensor an external shield, and the counter housing is fixed on the external shield.
2,, it is characterized in that at inner shield of magnetic pumping assembly external fixation according to the said flow sensor that has magnetic shielding cover of claim 1.
3, according to claim 1 or the 2 said flow sensors that have magnetic shielding cover, it is characterized in that being pressed in the bayonet socket of waterproof loam cake at the rotation deck, external shield is fixed on the fixed leg of rotation deck, and the rotation deck can drive external shield and rotate in the waterproof cover upper latch notch.
4, according to claim 1 or the 2 said flow sensors that have magnetic shielding cover, it is characterized in that a mounting hole being arranged in the water side of housing, digital temperature sensor is installed in the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02210547 CN2529211Y (en) | 2002-03-08 | 2002-03-08 | Flow sensor with magnetic shield cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02210547 CN2529211Y (en) | 2002-03-08 | 2002-03-08 | Flow sensor with magnetic shield cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2529211Y true CN2529211Y (en) | 2003-01-01 |
Family
ID=33690663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02210547 Expired - Fee Related CN2529211Y (en) | 2002-03-08 | 2002-03-08 | Flow sensor with magnetic shield cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2529211Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107490413A (en) * | 2017-07-26 | 2017-12-19 | 三川智慧科技股份有限公司 | Can the water meter of diamagnetic interference and its diamagnetic interference method automatically |
| CN110726451A (en) * | 2019-09-11 | 2020-01-24 | 江苏微浪电子科技有限公司 | Industrial flow meter for multi-directional flow and use method thereof |
-
2002
- 2002-03-08 CN CN 02210547 patent/CN2529211Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107490413A (en) * | 2017-07-26 | 2017-12-19 | 三川智慧科技股份有限公司 | Can the water meter of diamagnetic interference and its diamagnetic interference method automatically |
| CN110726451A (en) * | 2019-09-11 | 2020-01-24 | 江苏微浪电子科技有限公司 | Industrial flow meter for multi-directional flow and use method thereof |
| CN110726451B (en) * | 2019-09-11 | 2021-01-01 | 江苏微浪电子科技有限公司 | Industrial flow meter for multi-directional flow and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |