CN2480882Y - Magnetic controlled flow switch capable of measuring flow - Google Patents
Magnetic controlled flow switch capable of measuring flow Download PDFInfo
- Publication number
- CN2480882Y CN2480882Y CN 01200122 CN01200122U CN2480882Y CN 2480882 Y CN2480882 Y CN 2480882Y CN 01200122 CN01200122 CN 01200122 CN 01200122 U CN01200122 U CN 01200122U CN 2480882 Y CN2480882 Y CN 2480882Y
- Authority
- CN
- China
- Prior art keywords
- flow
- impeller
- magnetic
- hall element
- flow switch
- 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 magnetic controlled flow switch capable of measuring flow, consisting of a magnetic signal generator in a flow casing and a Hall element out of the flow casing, wherein the magnetic signal generator comprises a diversion box, an impeller and two permanent magnets which are symmetrically and fixedly arranged on the impeller; when a flow passes through, the Hall element outputs an electronic impulse signal to control the turn-on and turn-off of a primary power supply of an electric water heater, and the signal can be inputted in a microcomputer system to measure the flow and then to implement intelligent control.
Description
The utility model relates to a kind of magnetic control flow switch that can metered flow.
Electric heater is used for resident family, has solved the inconvenience of the daily use hot water of resident.Be security purpose, the common electrical water heater is all taked the water flowing power-off protection apparatus.Existing such device mostly adopts technology such as contact switch, and aquifer yield is had certain requirement, generally requires aquifer yield greater than 2L/min, has limited the reliability of its safeguard protection; The contact switch can only play on-off action simultaneously, can not measure the flow of water, has limited the Based Intelligent Control function of electric heater.
The purpose of this utility model is to provide a kind of and realizes power-off protection under electric heater weep amount condition, and can measure the magnetic control flow switch of discharge.
Basic technical scheme of the present utility model is: be built-in with a magnetic signal generating means at the water flowing shell, be made up of two permanent magnets that water conservancy diversion box, impeller and symmetry are fixed on the impeller; Outside the water flowing shell Yu on the corresponding position of permanent magnet, Hall element is housed, when current pass through, impeller in the magnetic signal generating means is driven and makes permanent magnet and Hall element to meet, trigger Hall element output electric pulse signal, electric impulse signal is through connection and the shutoff of lead input control line road plate with control electric heater primary power, and can and implement Based Intelligent Control with this signal input microcomputer system metering discharge.For impeller can be driven under the weep amount, the diversion trench center line on the water conservancy diversion box should become 20～40 ° of angles with the tangential direction angle α of circumference of impeller line.
The magnetic control flow switch that can measure discharge that the utility model provides, because the control of diversion trench angle on the water conservancy diversion box, impeller can promptly be driven under very little discharge, thereby improved the safe reliability of flow switch and electric heater, and, can use as the traffic probe unit of electric heater intelligence control system because the electric impulse signal quantity of being exported is relevant with discharge.
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1, be the utility model structural representation.
Fig. 2, be the utility model magnetic signal generating means structural representation.
The direction of arrow is represented water (flow) direction among the figure.
As shown in Figure 1, the utility model is built-in with the magnetic signal generating means at water flowing shell 1, is made up of water conservancy diversion box 2, impeller 4 and two permanent magnets 3 being fixed on the impeller; Outside the water flowing shell Yu on the corresponding position of permanent magnet, Hall element 5 is housed; When current passed through, the water conservancy diversion box made current promote the impeller rotation at a certain angle, when permanent magnet on the impeller and Hall element meet, triggered Hall element output electric pulse signal, and signal turn-offs the electric heater primary power through lead 6 input control line road plates; When not having current to pass through, impeller no longer rotates, and Hall element is output pulse signal no longer, and control circuit board is connected the electric heater primary power; When current pass through,, measure discharge so pulse signal can be imported microcomputer system, thereby can implement Based Intelligent Control electric heater because the electric impulse signal quantity that Hall element is exported is directly proportional with discharge.For impeller 4 can be driven under the weep amount, the center line of the diversion trench 8 on the water conservancy diversion box 2 should become 20～40 ° of angles with the tangential direction angle α of circumference of impeller line, as shown in Figure 2, by this structural design, can make the flow switch can the output electric pulse signal when discharge is lower than 0.5L/min.Water flowing shell, water conservancy diversion box, impeller and cover 7 and make by the non-magnetizer material, magnet is a Nd-Fe-Bo permanent magnet material.
The utility model one embodiment, water flowing shell 1 latus rectum Φ 15mm, make by brass material, water conservancy diversion box 2, impeller 4 and cover 7 and make by nylon material, magnet is Φ 3.5 * 4mm NdFeB material, and Hall element is (3144) type Hall switch, and warp is to finished product test, the water flowing flow promptly can the output electric pulse signal at 0.4L/min, and the quantity of pulse signal becomes the good proportion relation with discharge.
The utility model has the advantages that: simple in structure, easy to use, can be under weep amount condition just Normal output signal can effectively guarantee safety in utilization, the reliability of electric heater, and can realize water The metering of flow.
Claims (2)
1, a kind of capable of measuring flow magnetic control flow switch, constitute by the magnetic signal generating means and the outer Hall element of water flowing shell that are arranged in the water flowing shell, it is characterized in that: described magnetic signal generating means comprises water conservancy diversion box, impeller and two permanent magnets, and wherein permanent magnet is fixed on the impeller by symmetry.
2, magnetic control flow switch according to claim 1 is characterized in that: the diversion trench center line on the described water conservancy diversion box becomes 20～40 ° of angles with the tangential direction angle α of circumference of impeller line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01200122 CN2480882Y (en) | 2001-01-08 | 2001-01-08 | Magnetic controlled flow switch capable of measuring flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01200122 CN2480882Y (en) | 2001-01-08 | 2001-01-08 | Magnetic controlled flow switch capable of measuring flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2480882Y true CN2480882Y (en) | 2002-03-06 |
Family
ID=33622466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01200122 Expired - Fee Related CN2480882Y (en) | 2001-01-08 | 2001-01-08 | Magnetic controlled flow switch capable of measuring flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2480882Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148908A (en) * | 2011-12-06 | 2013-06-12 | 林景山 | Two-way metering type water flow switch |
| CN105088693A (en) * | 2014-04-22 | 2015-11-25 | 无锡小天鹅股份有限公司 | Washing machine and water inlet valve thereof |
-
2001
- 2001-01-08 CN CN 01200122 patent/CN2480882Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148908A (en) * | 2011-12-06 | 2013-06-12 | 林景山 | Two-way metering type water flow switch |
| CN105088693A (en) * | 2014-04-22 | 2015-11-25 | 无锡小天鹅股份有限公司 | Washing machine and water inlet valve thereof |
| CN105088693B (en) * | 2014-04-22 | 2019-02-05 | 无锡小天鹅股份有限公司 | Washing machine and its inlet valve |
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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 |