CN2599537Y - Pointer-type water level and water temp. display device - Google Patents
Pointer-type water level and water temp. display device Download PDFInfo
- Publication number
- CN2599537Y CN2599537Y CNU032387407U CN03238740U CN2599537Y CN 2599537 Y CN2599537 Y CN 2599537Y CN U032387407 U CNU032387407 U CN U032387407U CN 03238740 U CN03238740 U CN 03238740U CN 2599537 Y CN2599537 Y CN 2599537Y
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- water
- level
- pointer
- temperature
- signal processor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model relates to a pointer-type water-level and temperature indicating device which is used to test the water level and water temperature. The utility model comprises a sensor, a signal processor and a display. The signal processor comprises a plurality of groups of crystal triodes and a voltage-dividing resistance. A water resistance is taken as the current-limiting resistance of the triode base electrode. Because the triode base electrode can work under very weak current, the change of water resistance has no influence on the linear amplification feature of the triode. As a result, display precision is not influenced by temperature changes in the water tank that causes different water resistances due to different water qualities in different regions; the signal processor is capable to generate accurate water level - voltage signals so that the display can indicate the current water-level accurately. The display is mainly comprised of a DC pointer-type voltmeter (the dial inside the voltmeter is replaced) and a 9V battery. The display takes the voltmeter as a load, and the working current of the device is controlled below 1MA due to the high resistance of the voltmeter. Therefore, the utility model is safe and energy-efficient. The pointer of the voltmeter indicates the water level directly and clearly.
Description
One, technical field
The utility model is a kind of cistern water level water temperature sensing device shown that is used for.Particularly to the display device of water temperature in the water level in this type of not visible container of solar water heater, the straight xylometer of inconvenience.
Two, background technology
Water level to water tank shows that following shortcoming is generally arranged at present
(1) general device utilizes the electricresistance effect of water to connect circuit triggers multichannel diode displaying water level, and the multistage water level of remote if desired demonstration then needs to put at a distance multiple conducting wires and forms cable.Complicated loaded down with trivial details, very inconvenience.
(2) some level displaying devices being arranged is risings according to cistern water level, utilize the electricresistance effect of water to connect an electrode bar that many divider resistance series connection are arranged with parallel way successively, go to drive display device and produce the voltage signal that the variation with all-in resistance in parallel changes, its shortcoming is the variation because of water temperature in each department water quality difference, the water tank, factors such as the pollution extent of corrosion on sensing electrode surface, the uncertainty that causes water resistance, the water level voltage signal of Chan Shenging also is uncertain like this, thereby influence the degree of accuracy that water level shows, device uses has limitation.
(3) present multistage water level detector adopts a multielectrode detector bar of inner encapsulation, excessively also can't change as a certain electrode corrosion, and whole detector bar is also scrapped.Different types of water tank water depth also differs widely, and this type of detector bar generally all is one-shot forming, then lacks dirigibility when being suitable for the variety classes water tank, makes this type of water level device poor compatibility, well wide popularization and application.
Three, summary of the invention
1, goal of the invention
It is succinct that goal of the invention of the present utility model provides a kind of structure, widely applicable, intuitive display, and the little current work of low pressure, precise and stable, be not subjected to regional water quality restriction, the restriction of water tank water temperature, sensing electrode to pollute the high precision water-level and water-temperature display device that corrosion influences.
2, technical scheme
Cistern water level water temperature display device of the present utility model is made up of sensor, signal processor and display three parts.Sensor is made up of insulating carrier, sensing electrode sheet, thermo-sensitive resistor, terminal row, and there is multiple wedge slot perhaps in the insulating carrier front, and a wedge groove is respectively arranged at its top, back side and bottom.With the sensing electrode sheet in a determining deviation is inserted in the wedge groove, each sensing electrode sheet all has lead to be connected to terminal row transmission water level signal, thermo-sensitive resistor is fixed on the bottom position of insulating carrier, and the thermo-sensitive resistor two ends also are connected to terminal row to transmit temperature signal by lead.Insulating carrier is suppressed one-shot forming by thermosetting plastics through high temperature.Because of the different water tank degree of depth are also different, not enough as insulating carrier length, can be inserted in two insulating carrier back wedge grooves with coupling head and link up increase length, again with the sensing electrode sheet in a determining deviation is inserted in the wedge groove to adapt to the variety classes water tank.Sensor vertically is fixed on water tank inside, signal processor is fixed near the water tank, sensor is connected to signal processor processes with the water-level and water-temperature signal through polycore cable, by signal processor output and water level corresponding voltage signal, be sent to display at a distance through a triple cable and show current water-level and water-temperature.Signal processor is made up of many groups transistor and divider resistance, with the current-limiting resistance of water resistance as the transistor base stage, because the transistor base stage can be operated under the very weak electric current, the variation of water resistance can not have influence on the linear amplification characteristic of transistor.So just eliminated because of factors such as water temperature in regional water quality difference, the water tank change, the sensing electrode sheet pollutes corrosion and caused of the influence of the difference of water resistance display precision, signal processor can produce accurate water level-voltage signal, makes the current water level of demonstration that display can be accurately stable.Display mainly is to show water-level and water-temperature by a direct current needle dc voltmeter through scale display disc in the replacing table.Indicate the water level and the water temperature of water tank with the pointer position of voltage table.Adopt one to switch the switching demonstration that knob carries out water-level and water-temperature.
3, technique effect
Adopt the advantage of pointer water-level and water-temperature display device of the present utility model to be:
(1) structure is succinct: connect display at a distance by signal processor and only need put a triple core wire.Solved conventional multistage water level and shown to put to organize the complicated loaded down with trivial details of leads more.
(2) energy-saving safe: this device power supply uses a 9V laminated cell, is lower than the 36V safe voltage, the casualty accident that gets an electric shock can not occur.Display uses a pointer direct current voltage table to do the water-level and water-temperature indication, and the high impedance (impedance is 10K) that utilizes voltage table makes working current in (0.13MA-0.9MA) scope as the display load, and a 9V laminated cell can use more than 1 year.
(3) precise and stable: as, to have improved degree of accuracy because the principle of work of signal processor has been eliminated the influence of the instability of water resistance to display.The signal processor circuit components and parts are less, and are simple for structure, reduced the failure rate of signal processor, because the working current of device has also reduced sensing electrode sheet electrolytic oxidation degree below 1MA, prolonged the serviceable life of sensing electrode sheet, reliable and stable.
(4) intuitive display: change scale display disc in the needle dc voltmeter table, the needle dc voltmeter side direction is installed on the panel of display, the voltage table pointer is indicated to a high position by low level with the rising of water level or temperature, simple and clear.
(5) easy to use: as to have a power switch switch and a water-level and water-temperature to switch knob on the panel of display.Display is promptly indicated water tank current water level situation behind the opening power push switch, when needs are known the water tank water temperature, press water-level and water-temperature and switch knob and observe the position of pointer and know the water temperature situation that water tank is current, unclamp knob after display then indicate water tank current water level situation.
(6) widely applicable: the length that can increase sensor as required at any time is to adapt to different water tanks, convenient, flexible, compatible good, better meet requirements of different users, also solved simultaneously because of the different water tank degree of depth different need be from new design sensor die loaded down with trivial details.
Four, description of drawings
Fig. 1 is the general structure synoptic diagram of the utility model pointer-type water-level and water-temperature display device.Sensor 1, signal processor 2, display 3 are wherein arranged.
Fig. 2 is signal processor 2 circuit theory diagrams of the utility model pointer-type water-level and water-temperature display device.
Fig. 3 is display 3 circuit theory diagrams of the utility model pointer-type water-level and water-temperature display device
Fig. 4 is sensor 1 structural representation of the utility model pointer-type water-level and water-temperature display device, and insulating carrier 111, sensing electrode sheet 112, thermo-sensitive resistor 113, terminal row 114 are wherein arranged.
Fig. 5 is sensor 1 side view of the utility model pointer-type water-level and water-temperature display device, and multiple wedge slot 115 is perhaps wherein arranged.
Fig. 6 is coupling head 116 structural representations of the utility model pointer-type water-level and water-temperature display device.
Fig. 7 is display 3 front views of the utility model pointer-type water-level and water-temperature display device, wherein has needle dc voltmeter 331, water-level and water-temperature to switch knob 332, power switch switch 333.
Five, specific embodiments
The utility model pointer-type water-level and water-temperature display device is divided into nine sections with water in the water tank and is sensed as example, and sensor 1 vertically is mounted in the water tank, and sensor 1 is made up of insulating carrier 111, sensing electrode sheet 112, thermo-sensitive resistor 113 and terminal row 114.Thermo-sensitive resistor 113 resistances are 160K (model is a MF58-503-3910 negative temperature type), sensing electrode sheet 112 is in a determining deviation is inserted in wedge groove 115, divide tested water level into nine sections, each sensing electrode sheet 112 and thermo-sensitive resistor 113 all are connected on the terminal row 114 by lead, with 11 core cables or winding displacement terminal row 114 are connected successively with the input end J3 of signal processor 2.Signal processor 2 has the signal amplification circuit of 9 groups of transistors and divider resistance formation, and transistor BG1-BG9 model is 9014, and resistance is respectively R1=100 Europe, R2=1.5K, R3=6K, R4=12K, R5=22K.R6＝31K，R7＝47K，R8＝62K，R9＝70K。Signal processor 2 is fixed on the water tank next door, and signal processor 2 output terminal J2 are connected with distal displayed device 3 input end J1 by triple cable.Display 3 switches knob 332, power switch switch 333 and a 9V laminated cell by needle dc voltmeter 331, water-level and water-temperature and constitutes.Needle dc voltmeter 331 side direction are installed in display 3 faces and pull.Can realize the utility model according to the above.
Claims (4)
1, a kind of pointer water-level and water-temperature display device, partly form by Sensor section, signal processor part and display, it is characterized in that sensor (1) is connected to the water-level and water-temperature signal input end of signal processor (2) through polycore cable or winding displacement, after signal processor (2) is handled, be connected to the input end demonstration water tank current water level water temperature of display (3) at a distance with triple cable by the output terminal of signal processor (2).
2, pointer water-level and water-temperature display device according to claim 1, it is characterized in that sensor (1) is made up of insulating carrier (111), sensing electrode sheet (112), thermo-sensitive resistor (113) and terminal row (114), sensing electrode sheet (112) is in a determining deviation is inserted in the wedge groove (115) of insulating carrier (111), thermo-sensitive resistor (113) be fixed on insulating carrier (111) bottom position, each sensing electrode sheet (112) and thermo-sensitive resistor (113) all are connected on the terminal row (114) by lead.
3, pointer water-level and water-temperature display device according to claim 1 is characterized in that the signal amplification circuit that signal processor (2) is made up of many groups transistor and divider resistance constitutes.
4, pointer water-level and water-temperature display device according to claim 1 is characterized in that display (3) switches knob (332) by a needle dc voltmeter (331), power switch switch (333), water-level and water-temperature and a 9V laminated cell is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032387407U CN2599537Y (en) | 2003-02-23 | 2003-02-23 | Pointer-type water level and water temp. display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032387407U CN2599537Y (en) | 2003-02-23 | 2003-02-23 | Pointer-type water level and water temp. display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2599537Y true CN2599537Y (en) | 2004-01-14 |
Family
ID=34167357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032387407U Expired - Fee Related CN2599537Y (en) | 2003-02-23 | 2003-02-23 | Pointer-type water level and water temp. display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2599537Y (en) |
-
2003
- 2003-02-23 CN CNU032387407U patent/CN2599537Y/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 | ||
| 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 |