CN2634445Y - Integrated photoelectric liquid level sensor - Google Patents
Integrated photoelectric liquid level sensor Download PDFInfo
- Publication number
- CN2634445Y CN2634445Y CN 03255243 CN03255243U CN2634445Y CN 2634445 Y CN2634445 Y CN 2634445Y CN 03255243 CN03255243 CN 03255243 CN 03255243 U CN03255243 U CN 03255243U CN 2634445 Y CN2634445 Y CN 2634445Y
- Authority
- CN
- China
- Prior art keywords
- rotor assembly
- integrated circuit
- liquid level
- level sensor
- integrated
- 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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- Level Indicators Using A Float (AREA)
Abstract
The utility model relates to a photoelectric sensor, which solves the contact measuring problem occurring in the photoelectric level sensor. The utility model discloses an integrated photoelectric level sensor, including a sensor body which is composed of an upper cover and a lower cover. The sensor body is provided with a printed circuit board. A passive rotor subassembly is arranged under the sensor body, and an initiative rotor subassembly is arranged under the passive rotor subassembly. The initiative rotor subassembly is linked with the passive rotor subassembly through magnetic transmission. The non-contact measurement of magnetic transmission adopted by the utility model is characterized in compact structure, light weight and flexible operation, low cost, convenient installation and maintenance. The luminous photosensitive integrated circuit is able to accurately monitor the level state of both general liquid and flammable liquid as well as corrosive liquid.
Description
Technical field
The utility model relates to sensor, specifically uses the sensing device of photoelectron technology measuring liquid level height.
Background technology
The existing sensor of measuring liquid level mostly is mechanical type greatly, and its contact is easy to wear, and measuring accuracy is low.The Chinese patent notification number is CN2459631Y, discloses the patent that a kind of name is called " photoelectric level transducer ".Shortcomings such as this patent adopts optical generator and optical receiver separate type, needs when measuring directly to contact with fluid to be measured but exist, and the volume of sensor is bigger.Another kind of electro-optical pickoff adopts photoelectric cell to make sensitive element, and the drive by measuring staff makes to produce between photoelectric cell and the shadow shield and relatively moves, and makes photronic illuminating area that variation take place, and produces electric signal output.Its cost is higher, and illumination condition need be arranged.
Summary of the invention
For solving the problem that photoelectric level transducer exists contact measurement, the utility model provides a kind of integrated form photoelectricity liquid level sensor.It can reduce volume effectively, reduces cost, and need not during measurement directly to contact with fluid to be measured, can work under severe environmental conditions.
The utility model is to realize by following technical scheme, it comprises sensor body, its structural feature is that sensor body is made up of loam cake, lower cover, be provided with printed circuit board (PCB) in the body, below sensor body, be provided with the passive rotor assembly, be positioned at passive rotor assembly below and be provided with a power rotor assembly, the power rotor assembly is linked together by magnetic transmission and passive rotor assembly.
Above-mentioned printed circuit board (PCB) is by divider resistance R1, R2, R3, R4, R5, luminous/sensitive integrated circuits IC1, IC2, IC3, IC4, socket is formed, be in series between the port of integrated circuit (IC) 1-IC4 light emitting diode, after being in series, the positive terminal of integrated circuit (IC) 1 light emitting diode and divider resistance R5 connect power end, the negative pole end earth terminal of integrated circuit (IC) 4 light emitting diodes, integrated circuit (IC) 1-IC4 sensitization transistor emitter port is connected with the divider resistance that a sequence number corresponds to R1-R4 respectively, the other end of divider resistance R1-R4 connects output terminal after linking to each other, and is connected to power supply after integrated circuit (IC) 1-IC4 sensitization transistor collector port is parallel with one another.
Above-mentioned passive rotor assembly is made of reflector, rotor, secondary magnet steel, fixed cap, and reflector and rotor are combined into one, and magnet steel and fixed cap are combined into one, and this two body is combined together.
Above-mentioned power rotor assembly is made of housing and main magnet steel, and housing and main magnet steel are combined into one.The following transverse plane of housing is provided with a hole.
The utility model has been realized non-contact measurement owing to adopt magnetic transferring structure and luminous/sensitive integrated circuits, can accurately monitor fluid level condition, compact conformation, and light and flexible, with low cost, easy to installation and maintenance.Can be used for general liquid, also can be used for the level gauging of flammable and combustible liquids and deep-etching liquid.
Description of drawings
Embodiment below with reference to accompanying drawing is further described the utility model.
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model circuit diagram.
Embodiment
Among Fig. 1, the power rotor assembly is injection molded by housing 3 and main magnet steel 4, and the following stomidium 1 of housing 3 matches with the transmitter shaft of liquid level float gear transmission mechanism.Secondary magnet steel 6 is assembled together with fixed cap 5 gluings, and rotor 7 is pasted mutually with reflector 8 gluings, two gluing spares is assembled into a passive rotor assembly again.Loam cake 11 is linked to be a sensor body with lower cover 9 by screw 12, the rotor 7 of passive rotor assembly is enclosed within the lower cover hole of body 2, lower cover 9 is fixed together by screw and fluid reservoir shell, and fluid reservoir shell and sensor contact portion are necessary for non-magnet material.In the lower cover 9 of body printed circuit board (PCB) 10 is housed, socket 13 is that three core sockets are connected with printed circuit board (PCB) 10 solderings.When working sensor, the liquid level float drives the rotation of power rotor assembly by the transmitter shaft of float gear transmission mechanism in the fluid reservoir, and the power rotor assembly drives the passive rotor assembly by magnetic coupling and rotates, and just drives reflector and rotates.The reflective surface of reflector 8 is disks that are the black and white intersection, and white portion is a reflective areas, and incident ray is mainly shown as reflex, and black region is the uptake zone, and incident ray is mainly shown as absorption.The rotational angle of reflector has reflected the variation of liquid level, and the pointer on the reflector can identify fluid level condition in the fluid reservoir.On sensor lower cover sensitive surface, be equipped with luminous/sensitive integrated circuits, when reflector rotates, make luminous/sensitive integrated circuits different circuit turn-on/cut-off states occur.Be transported to the display instrument terminal by cable, the fluid level condition of liquid storage pot liquid can be provided in real time.
Among Fig. 2, P.e.c. is by divider resistance R1, R2, R3, R4, R5, and luminous/sensitive integrated circuits IC1, IC2, IC3, IC4 form, and present embodiment is luminous/and the model of sensitive integrated circuits IC1, IC2, IC3, IC4 is SG-105F.Power end VCC links to each other with the port of divider resistance R5, the other end of resistance R 5 is connected with the light emitting diode port one of luminous/sensitive integrated circuits IC1, the light-emitting diodes pipe port 2 of integrated circuit (IC) 1 is connected with the light emitting diode port one of integrated circuit (IC) 2, the light-emitting diodes pipe port 2 of integrated circuit (IC) 2 is connected with the light emitting diode port one of integrated circuit (IC) 3, the light-emitting diodes pipe port 2 of integrated circuit (IC) 3 is connected with the light emitting diode port one of integrated circuit (IC) 4, and the port 2 of integrated circuit (IC) 4 is connected with earth terminal GND.Series connection between above integrated circuit (IC) 1-IC4 light-emitting diodes pipe port has been used for luminous effect.The port 4 of integrated circuit (IC) 1 sensitization transistor emitter is connected with divider resistance R1, the port 4 of integrated circuit (IC) 2 sensitization transistor emitters is connected with divider resistance R2, the port 4 of integrated circuit (IC) 3 sensitization transistor emitters is connected with divider resistance R3, the port 4 of integrated circuit (IC) 4 sensitization transistor emitters is connected with divider resistance R4, the other end of each divider resistance R1-R4 meets output terminal OUT after linking to each other, and each port 3 back in parallel of integrated circuit (IC) 1-IC4 sensitization transistor collector are connected with power end VCC.Power end VCC, output terminal OUT, earth terminal GND connect three core sockets.
Claims (4)
1. integrated form photoelectricity liquid level sensor, comprise sensor body, it is characterized in that sensor body is made up of loam cake, lower cover, be provided with printed circuit board (PCB) in the body, below sensor body, be provided with the passive rotor assembly, be positioned at passive rotor assembly below and be provided with a power rotor assembly, the power rotor assembly is linked together by magnetic transmission and passive rotor assembly.
2. integrated form photoelectricity liquid level sensor according to claim 1, it is characterized in that printed circuit board (PCB) is by divider resistance R1, R2, R3, R4, luminous/sensitive integrated circuits IC1, IC2, IC3, IC4, socket is formed, be in series between the port of integrated circuit (IC) 1-IC4 light emitting diode, after being in series, the positive terminal of integrated circuit (IC) 1 light emitting diode and divider resistance R5 connect power supply, the negative pole end earth terminal of integrated circuit (IC) 4 light emitting diodes, integrated circuit (IC) 1-IC4 sensitization transistor emitter port is connected with the divider resistance that a sequence number corresponds to R1-R4 respectively, the other end of divider resistance R1-R4 connects output terminal after linking to each other, and is connected to power end after integrated circuit (IC) 1-IC4 sensitization transistor collector port is parallel with one another.
3. integrated form photoelectricity liquid level sensor according to claim 1, it is characterized in that the passive rotor assembly is made of reflector, rotor, secondary magnet steel, fixed cap, reflector and rotor are combined into one, and magnet steel and fixed cap are combined into one, and this two body is combined together.
4. integrated form photoelectricity liquid level sensor according to claim 1 is characterized in that the power rotor assembly is made of housing and main magnet steel, and housing and main magnet steel are combined into one, and the following transverse plane of housing is provided with a hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255243 CN2634445Y (en) | 2003-07-04 | 2003-07-04 | Integrated photoelectric liquid level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255243 CN2634445Y (en) | 2003-07-04 | 2003-07-04 | Integrated photoelectric liquid level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2634445Y true CN2634445Y (en) | 2004-08-18 |
Family
ID=34294868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03255243 Expired - Fee Related CN2634445Y (en) | 2003-07-04 | 2003-07-04 | Integrated photoelectric liquid level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2634445Y (en) |
-
2003
- 2003-07-04 CN CN 03255243 patent/CN2634445Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20040818 Termination date: 20120704 |