CN203643863U - Automatic water feeding apparatus of QUV accelerated aging instrument - Google Patents
Automatic water feeding apparatus of QUV accelerated aging instrument Download PDFInfo
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- CN203643863U CN203643863U CN201320705371.0U CN201320705371U CN203643863U CN 203643863 U CN203643863 U CN 203643863U CN 201320705371 U CN201320705371 U CN 201320705371U CN 203643863 U CN203643863 U CN 203643863U
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- water
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- automatic water
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Abstract
The utility model discloses an automatic water feeding apparatus of a QUV accelerated aging instrument. The automatic water feeding apparatus is characterized in that a timing IC chip enables the connection that a Schmidt trigger circuit is connected into a relay (J) through a triode (VT); the relay (J) is connected in series in a power supply circuit of a water charging motor; three probes (A, B and C) are connected from the timing IC chip and are disposed at a water level highest point, a water adding point and a water level lowest point of a water tower. Therefore, through the connection between the probes (A, B and C) with water acting as the conductor, a potential value in the circuit is changed, the suction of the relay (J) is controlled, and a function of automatic water feeding is realized. With the adoption of the above structure, the automatic water feeding apparatus of the QUV accelerated aging instrument is simple in structure, convenient to maintain, reliable in operation and excellent in cost performance, overcomes some disadvantages of other methods to a certain degree, provides a function of automatic alarming and automatic protection, and can be applied to many occasions.
Description
Technical field
The utility model relates to the improvement of QUV accelerated deterioration instrument, particularly a kind of automatic water inflow device of QUV accelerated deterioration instrument.
Background technology
QUV accelerated deterioration instrument is a kind of analogue experiment installation that material unaccelerated aging index evaluation is used, in use need manual complementary testing water, in recent years because human error, make instrument water inlet cause not in time test to interrupt, even burn out when serious the main accessory of instrument, brought larger economic loss to enterprise.
The form of prior art middle water level control device has a variety of, float switch formula, electrical nodes formula, pressure type, electronic type, microcomputer type etc.These install some shortcomings that exist more or less.For example float switch formula adopts physical construction, safeguards inconvenience; Microcomputer type control device, although easy to operate, cost is relatively expensive.
For above-mentioned problem, for a kind of water-level control apparatus of QUV accelerated deterioration instrument specialized designs, in production control cost, realize automatic feeding water, it is the problem that prior art need to solve that instrument is carried out to effectively protection.
Utility model content
Technical problem to be solved in the utility model is, a kind of automatic water inflow device of QUV accelerated deterioration instrument is provided, and realizes automatic feeding water, and instrument is carried out to the effectively object of protection.
For achieving the above object, the technical solution of the utility model is, a kind of automatic water inflow device of QUV accelerated deterioration instrument, it is characterized in that: described device is that timing IC chip forms schmidt trigger circuit by the conducting of triode VT cut-in relay J, and relay J seals in the power circuit of moisturizing motor; Timing IC chip connects three probe A, B, C and is separately positioned on water level peak, filling up area and the minimum point of water tower, thereby realize the adhesive of the potential value pilot relay J in the conducting change circuit between probe A, B, C using water as conductor, realize the function of automatic feeding water.
Between described probe A, B and probe C, string has 470 resistance R; Between probe B and probe A, be provided with voltage stabilizing diode D1.
The model of described timing IC chip is NE555.
Potential value in 2 pin Acquisition Circuit of described timing IC chip, when 3 pin output high level of circuit midpoint potential value timing IC chip during lower than 1/3Vcc, relay J obtains electric adhesive and starts the moisturizing motor of water tower; When 3 pin output low levels of circuit midpoint potential value timing IC chip during higher than 2/3Vcc, relay J power-off, moisturizing motor stops pumping.
Between described probe B and probe C, be provided with capacitor C 1 in parallel with 470 resistance R.
Between described timing IC chip and triode VT, be provided with LED, in the time that pumping motor is worked, play alarm function.
A kind of automatic water inflow device of QUV accelerated deterioration instrument; owing to adopting above-mentioned structure, the utility model is simple in structure easy to maintenance, and reliable operation performance cost ratio is good; and overcoming in varying degrees some shortcomings of additive method, and provide automatic alarm automatic protection functions.Have under a lot of occasions and all can adopt.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail;
Fig. 1 is the principle schematic of the automatic water inflow device of a kind of QUV accelerated deterioration of the utility model instrument;
Fig. 2 is the circuit diagram of the automatic water inflow device of a kind of QUV accelerated deterioration of the utility model instrument;
In Fig. 1,1, timing IC chip.
Embodiment
The utility model is mainly by using the simple and easy water tower automatic water inflow device of the element compositions such as timing IC chip 1, voltage stabilizing diode D1, triode VT, automatic feeding water in the time that water level is low, timely power-off when water is full, also power-off protection when water level is too low.Because existing water tower cannot be realized automatic feeding water, there is no the function of full water automatic stop yet, cause water resource waste, or water inlet is not in time.
The wherein principle of stabilized voltage of voltage stabilizing diode D1: after the feature of voltage stabilizing diode D1 punctures exactly, the voltage at its two ends remains unchanged substantially.Like this, after zener diode D1 place in circuit, if because supply voltage fluctuates, or other reason is while causing in circuit each point variation in voltage, and the voltage at load two ends will remain unchanged substantially.The water level of water tower rises to probe A while putting between probe B point, and 470 resistance R are gone here and there place in circuit, and now P point control of Electric potentials is in 1/2Vcc left and right, and trigger keeps original state constant.Because now circuit is not worked, the voltage at voltage stabilizing diode D1 two ends is substantially constant, so water level remains between probe A point and probe B point always, no longer rises.
In the utility model, the model of timing IC chip 1 is NE555.The function that NE555 integrated circuit is controlled when making fixed response time, also can be used for the various control such as light modulation, temperature adjustment, pressure regulation, speed governing and metering detection, composition impulse hunting, monostable, bistable and pulse modulated circuit, for AC signal source, power conversion, frequency transformation, pulsed modulation etc.In the utility model, the Main Function of NE555 is pressure regulation, and the voltage in circuit is remained in certain scope, and NE555 has reliable operation, easy to use, cheap feature.
Specifically as shown in Figure 1, the utility model is that timing IC chip 1 forms schmidt trigger circuit by the conducting of triode VT cut-in relay J, and relay J seals in the power circuit of moisturizing motor; Timing IC chip 1 connects three probe A, B, C and is separately positioned on water level peak, filling up area and the minimum point of water tower, thereby realize the adhesive of the potential value pilot relay J in the conducting change circuit between probe A, B, C using water as conductor, realize the function of automatic feeding water.Between probe A, B and probe C, string has 470 resistance R; Between probe B and probe A, be provided with voltage stabilizing diode D1.Between timing IC chip 1 and triode VT, be provided with LED, in the time that pumping motor is worked, play alarm function.
By control the power supply of water tower by relay J, capacitor C 1 is that NE555 is connected into schmidt trigger circuit for the interference on erasure signal line, utilizes its return difference characteristic to reach the object of maintenance.
Automatic feeding water: in the time being reduced to probe C point under water level, probe C point is unsettled.2 pin of timing IC chip 1 are lower than 1/3Vcc, and its 3 pin is exported high level, and relay J obtains electric adhesive, start water tower pumping, and water level rises gradually.
Middle maintenance: when water level rises to A point between B point time, 470 resistance R is gone here and there place in circuit,, now P point control of Electric potentials is about 1/2Vcc, and trigger keeps original state constant.
The full automatic stop of water: in the time that water level rises to probe A point, because water resistance is less, P point current potential is higher than 2/3Vcc, 3 pin output low levels of timing IC chip 1, relay J power-off, water tower stops pumping.
After debugging, the utility model both can make water tower automatic feeding water, reached again the function of protection instrument, can not produce water again and completely cause the situation of the wasting of resources.Newly-increased device can effectively raise stability and the continued operation of test apparatus, has reduced the failure rate in instrument use procedure, has improved the serviceable life of instrument itself.
By reference to the accompanying drawings the utility model is exemplarily described above; obviously the utility model specific implementation is not subject to the restrictions described above; as long as the various improvement that adopted technical solutions of the utility model to carry out; or directly apply to other occasion without improvement, all within protection domain of the present utility model.
Claims (5)
1. an automatic water inflow device for QUV accelerated deterioration instrument, is characterized in that: described device is that timing IC chip (1) forms schmidt trigger circuit by the conducting of triode VT cut-in relay J, and relay J seals in the power circuit of moisturizing motor; Timing IC chip connects three probe A, B, C and is separately positioned on water level peak, filling up area and the minimum point of water tower.
2. the automatic water inflow device of a kind of QUV accelerated deterioration instrument according to claim 1, is characterized in that: between described probe A, B and probe C, string has 470 resistance R; Between probe B and probe A, be provided with voltage stabilizing diode D1.
3. the automatic water inflow device of a kind of QUV accelerated deterioration instrument according to claim 1, is characterized in that: the model of described timing IC chip (1) is NE555.
4. the automatic water inflow device of a kind of QUV accelerated deterioration instrument according to claim 2, is characterized in that: between described probe B and probe C, be provided with capacitor C 1 in parallel with 470 resistance R.
5. the automatic water inflow device of a kind of QUV accelerated deterioration instrument according to claim 1, is characterized in that: between timing IC chip (1) and triode VT, be provided with LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320705371.0U CN203643863U (en) | 2013-11-09 | 2013-11-09 | Automatic water feeding apparatus of QUV accelerated aging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320705371.0U CN203643863U (en) | 2013-11-09 | 2013-11-09 | Automatic water feeding apparatus of QUV accelerated aging instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203643863U true CN203643863U (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320705371.0U Expired - Fee Related CN203643863U (en) | 2013-11-09 | 2013-11-09 | Automatic water feeding apparatus of QUV accelerated aging instrument |
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| CN (1) | CN203643863U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103576709A (en) * | 2013-11-09 | 2014-02-12 | 安徽神剑新材料股份有限公司 | Automatic water feeding device for QUV accelerated aging instrument |
-
2013
- 2013-11-09 CN CN201320705371.0U patent/CN203643863U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103576709A (en) * | 2013-11-09 | 2014-02-12 | 安徽神剑新材料股份有限公司 | Automatic water feeding device for QUV accelerated aging instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20211109 |
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| CF01 | Termination of patent right due to non-payment of annual fee |