CN205642547U - Electrode type water level switch and water heater - Google Patents
Electrode type water level switch and water heater Download PDFInfo
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- CN205642547U CN205642547U CN201620443935.1U CN201620443935U CN205642547U CN 205642547 U CN205642547 U CN 205642547U CN 201620443935 U CN201620443935 U CN 201620443935U CN 205642547 U CN205642547 U CN 205642547U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 146
- 238000001514 detection method Methods 0.000 claims abstract description 53
- 238000002955 isolation Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 abstract description 12
- 238000005260 corrosion Methods 0.000 abstract description 12
- 238000012423 maintenance Methods 0.000 abstract description 10
- 230000007547 defect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 150000002500 ions Chemical class 0.000 description 14
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000002035 prolonged effect Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The utility model discloses an electrode type water level switch and water heater, this switch includes: an acquisition device, an electrode (106), and an electrode detection circuit (108); the acquisition device is used for acquiring alternating current weak current signals; the electrode (106) is used for detecting the water level by using the alternating current weak current signal as a signal source; and the electrode detection circuit (108) is used for outputting a corresponding water level detection result according to the detection of the electrode (106) on the water level. The utility model discloses a scheme can overcome among the prior art electrode corrosion and knot incrustation scale degree defect such as uneven, the life weak point and the maintenance degree of difficulty is big, realizes that electrode corrosion and knot incrustation scale degree are even, long service life and the little beneficial effect of the maintenance degree of difficulty.
Description
Technical Field
The utility model belongs to the technical field of the hot water system, concretely relates to electrode type water level switch and water heater.
Background
With the application of a large number of commercial hot water units, the reed pipes commonly used in the market are easily blocked by water scales, and in addition, the electrode type water level switches are applied more and more. However, the current electrode type water level switch has the problems of uneven electrode corrosion and scale formation degree, easy electrode corrosion and the like which always puzzles users and brings much inconvenience to after-sale maintenance.
For example: the electrode type water level switch that current commercial hot-water machine or solar energy water tank used is mostly the weak electric mode of direct current, the electric ion because of in the water has one-way electric conductivity under direct voltage, the electron can move toward a direction and adsorb on the positive electrode, cause the positive electrode to adsorb a lot of impurity or incrustation scale very easily, and the negative electrode can become more and more thin because of progressively corroding, it is long-lived, can cause incrustation scale on the positive electrode to become more, the negative electrode attenuation, can make the water resistance grow between the electrode after reaching the certain degree, influence water level detection, it cleans the electrode to need the people to come the regular time. In addition, the electrode type water level switch mostly uses weak current direct current signals for detection, so that the electrode corrosion degree is different, and the long-term use of the electrode is influenced.
In the prior art, the defects of uneven electrode corrosion and scale formation degree, short service life, high maintenance difficulty and the like exist.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to above-mentioned defect, provide an electrode type water level switch and water heater to electrode type water level switch electrode corrodes and the uneven problem of knot incrustation scale degree among the solution prior art, reaches the effect that reduces the incrustation scale.
The utility model provides an electrode type water level switch, include: an acquisition device, an electrode, and an electrode detection circuit; the acquisition device is used for acquiring alternating current weak current signals; the electrode is used for detecting the water level by using the alternating current weak current signal as a signal source; and the electrode detection circuit is used for outputting a corresponding water level detection result according to the detection of the water level by the electrode.
Optionally, the obtaining apparatus includes: a transformer; the transformer is used for acquiring alternating current weak current signals based on an alternating current power supply.
Optionally, the method further comprises: an isolation circuit; the isolation circuit is arranged on the output side of the acquisition device and/or the input side of the electrode in a matching mode and used for isolating the alternating current weak current signal from the ground.
Optionally, the method further comprises: a regulating circuit; the adjusting circuit is arranged between the obtaining device and the electrode in a matching mode and used for adjusting the minimum current value between the electrode tips when the electrode at least comprises the double electrode tip.
Optionally, the adjustment circuit comprises: a resistance; the resistor is adapted to be connected in series between the output side of the acquisition device and the input side of the electrode.
Optionally, the alternating weak current signal includes: a power frequency 50Hz alternating current weak current signal; and/or, the electrode, comprising: four electrode heads.
Optionally, the alternating weak current signal includes: and a power frequency 50Hz alternating current 24V signal.
With above-mentioned electrode type water level switch phase-match, the utility model discloses another aspect provides a water heater, include: the electrode type water level switch is described above.
The utility model discloses a scheme uses the weak electric signal detection water level of alternating current who keeps apart with the earth, reduces the corruption of electron on the electrode, increases the electrode live time, reduces the after-sales maintenance degree of difficulty.
Furthermore, the utility model adopts weak current AC signal to detect water level, reduce the flow direction of ionized substance in water and reduce scale; the alternating signal current is reduced (for example, the current value can be reduced by increasing the resistance value of the resistor connected in series), and the service life of the electrode is prolonged. The voltage of the used weak current alternating current signal is constant, and the current value passing through the resistor can be reduced by increasing the resistance value of the resistor, so that the current of the weak current alternating current signal is reduced.
Further, the utility model discloses a scheme uses the weak electric signal detection water level of interchange, can reduce the corruption to the electrode, improves the electrode live time, reduces the maintenance cost, increases the complete machine live time.
Therefore, the utility model discloses a scheme utilizes weak current signal detection water level, solves among the prior art electrode formula water level switch electrode corrosion and the uneven problem of knot incrustation scale degree to, overcome among the prior art electrode corrosion and knot incrustation scale degree uneven, life weak point and the big defect of the maintenance degree of difficulty, realize that electrode corrosion and knot incrustation scale degree are even, long service life and the little beneficial effect of the maintenance degree of difficulty.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural view of an embodiment of an electrode type water level switch according to the present invention;
fig. 2 is a schematic structural diagram of an embodiment of a signal source, a regulating circuit and an electrode in a switch according to the present invention;
FIG. 3 is a schematic diagram of an embodiment of a water level detection system of a water heater according to the present invention;
fig. 4 is a schematic diagram of an embodiment of the water level detection process in the system of the present invention.
With reference to the accompanying drawings, the embodiments of the present invention have the following reference numerals:
102-a transformer; 104-an isolation circuit; 108-electrode detection circuit; 106-electrode; 1062-a first electrode head; 1064-second electrode head; 110-a regulating circuit; 1102-resistance.
Detailed Description
To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
According to the utility model discloses an embodiment provides an electrode type water level switch, as shown in fig. 1 the utility model discloses an electrode type water level switch's an embodiment's schematic structure diagram. The electrode type water level switch includes: an acquisition device, electrodes 106, and an electrode detection circuit 108.
In one example, the acquiring device is used for acquiring an alternating current weak current signal.
Optionally, the obtaining apparatus includes: a transformer 102.
For example: the transformer 102 is configured to obtain an ac weak current signal based on an ac power supply. The alternating current power supply is converted into an alternating current weak current signal through the transformer so as to supply power to the electrode detection circuit, the processing mode is simple and convenient, the accuracy of the processing result is good, and the reliability is high.
Optionally, the alternating weak current signal may include: industrial frequency 50Hz AC weak current signal. Through the power frequency 50Hz alternating current weak current signal, the flexibility and the application range of electrode detection can be improved.
Optionally, the alternating weak current signal may include: and a power frequency 50Hz alternating current 24V signal. The power frequency 50Hz alternating current weak current signal is used as a power supply signal of the electrode detection circuit, so that the electrode detection circuit is convenient to use, high in reliability and good in safety.
For example: by using a power frequency 50Hz alternating current weak current signal, unidirectional movement of the electric ions between the electrodes does not exist, the electric ions periodically move, scale formation of a single electrode is reduced, and water level detection is facilitated.
Therefore, the alternating current weak current signal is obtained so as to supply power to the electrode detection circuit, the obtaining mode is simple, the safety is good, the obtaining result is good in accuracy and high in reliability.
In one example, the electrodes 106 are used for detecting the water level by using the AC weak current signal as a signal source (for example, an AC weak current signal source as shown in fig. 2).
Optionally, the electrode, comprising: four electrode heads (e.g., a first electrode head 1062 and a second electrode head 1064 as shown in fig. 2). The electrode is formed by the four electrode heads, so that the application range and the adjustment flexibility of the electrode can be enlarged.
Therefore, the water level detection result is output through the electrodes under the condition that the alternating current weak current signals are used for detecting the water level, so that the accuracy is good, the reliability is high, the service life of the electrodes is long, and the detection safety is good.
In one example, the electrode detection circuit 108 is configured to output a corresponding water level detection result according to the detection of the water level by the electrode 106. For example: output to the other main boards shown in fig. 2.
For example: the electrode detection circuit 108 may be connected to the electrode 106 to obtain and output the water level detection result.
For example: the electric ions (namely charged ions) in the water periodically move between the electrodes, 2 electrodes are corroded or scale is formed, the water resistance is not easy to change greatly, and the electrodes can be ensured to effectively detect the water level for a long time.
Therefore, by using the alternating current weak current signal to detect the water level, charged ions in water can periodically move between the electrodes, so that each electrode tip is corroded or scales of the electrode when the electrode comprises at least 2 electrode tips, the water resistance between the electrode tips cannot be greatly changed, and the service life of the electrode and the accuracy and reliability of water level detection can be prolonged.
In an alternative embodiment, the combination of the capture device and the electrode 106 may further comprise: an isolation circuit 104.
In one example, the isolation circuit (e.g., a power frequency transformer may be used) 104 is adapted to be disposed on the output side of the acquisition device and/or the input side of the electrode 106 for isolating the ac weak current signal from the ground.
For example: the alternating current weak current signal is isolated from the ground, the safety is improved, the electrode type water level switch can be ensured to be used reliably and safely for a long time, and the product quality is improved.
Therefore, the alternating current weak current signal is isolated from the ground through the isolation circuit 104, and the safety and the reliability of water level detection can be improved.
In an alternative embodiment, the combination of the capture device and the electrode 106 may further comprise: the regulating circuit 110.
In one example, the adjusting circuit 110 is adapted to be disposed between the obtaining device and the electrode 106 for adjusting a minimum current value between electrode tips when the electrode comprises at least a bipolar tip.
For example: the electrode detection circuit 108 may be connected to the adjustment circuit 110 to obtain and output the water level detection result.
Therefore, the minimum current value between the electrode tips is adjusted according to the use requirement through the adjusting circuit 110, so that the use flexibility of the electrode type water level switch is greatly improved, and the universality and the reliability of the electrode type water level switch are further improved.
Optionally, the adjusting circuit 110 may include: and (4) resistance.
For example: the resistor is adapted to be connected in series between the output side of the acquisition device and the input side of the electrode 106.
For example: the minimum current value between the electrodes (for example, the minimum current value between the electrode tips when the electrodes at least comprise the double electrode tips) can be adjusted through the resistance values of the serially connected resistors, and the sensitivity of electrode detection can be ensured. In different water qualities, the electrode can be ensured to work reliably for a long time, after incrustation scale or corrosion is reduced, the time for placing the electrode in water can be prolonged, convenience is provided for users, the trouble that the electrode incrustation scale needs to be cleaned on site by regularly removing a water tank before sale is reduced, and the product quality and the use convenience are improved.
For example: the minimum current value may be: and testing the current value under the maximum water resistance in a water quality resistance analysis and simulation mode, selecting the corresponding resistance value, and further evaluating the obtained current value according to the resistance value and the constant voltage.
Therefore, the minimum current value between the electrode tips is adjusted by adapting the resistors connected in series, the adjusting mode is simple and reliable, and the adjusting convenience and safety are greatly improved.
A large number of tests prove that the technical scheme of the embodiment is adopted, alternating current weak current signals isolated from the ground are used for detecting the water level, the corrosion of electrons on the electrode is reduced, the service time of the electrode is prolonged, and the after-sale maintenance difficulty is reduced.
According to the utility model discloses an embodiment still provides a water heater corresponding to electrode formula water level switch. This water heater includes: the electrode type water level switch is described above.
For example: in the water heater, the working process of the electrode type water level switch can comprise the following steps:
(1) by using a power frequency 50Hz alternating current weak current signal, unidirectional movement of the electric ions between the electrodes does not exist, the electric ions periodically move, scale formation of a single electrode is reduced, and water level detection is facilitated.
(2) The electric ions in the water periodically move between the electrodes, 2 electrodes are corroded or have equivalent scale formation, the water resistance is not easy to change greatly, and the electrodes can be ensured to effectively detect the water level for a long time.
(3) The minimum current value between the electrodes (for example, the minimum current value between the electrode tips when the electrodes at least comprise the double electrode tips) can be adjusted through the resistance values of the serially connected resistors, and the sensitivity of electrode detection can be ensured. In different water qualities, the electrode can be ensured to work reliably for a long time, after incrustation scale or corrosion is reduced, the time for placing the electrode in water can be prolonged, convenience is provided for users, the trouble that the electrode incrustation scale needs to be cleaned on site by regularly removing a water tank before sale is reduced, and the product quality and the use convenience are improved.
(4) The alternating current weak current signal is isolated from the ground, the safety is improved, the electrode type water level switch can be ensured to be used reliably and safely for a long time, and the product quality is improved.
(5) The control panel (for example, the control panel of the water heater) can timely supply water according to the water level state in the water tank by detecting the water level condition in the water tank in real time, automatically adjust, meet the real-time requirements of users and improve the convenience of products.
Since the processing and functions of the water heater of this embodiment are basically corresponding to the embodiment, principle and example of the system shown in fig. 1, the description of this embodiment is not given in detail, and reference may be made to the related description in the foregoing embodiment, which is not described herein again.
Through a large number of tests, the technical scheme of the utility model is adopted, the scheme of the utility model uses weak current alternating current signals to detect the water level, reduces the flow direction of ionized materials in water, and reduces scale; reduce the alternating signal current and prolong the service life of the electrode.
According to the utility model discloses an embodiment still provides the water level detection system of a water heater corresponding to the water heater. Fig. 3 is a schematic diagram of an embodiment of a water level detecting system of a water heater according to the present invention. This water level detection system of water heater includes:
in step S110, the water level in the water tank of the water heater is detected by using the ac power supply as the power supply for detecting the water level.
For example: the electric ions (namely charged ions) in the water periodically move between the electrodes, 2 electrodes are corroded or scale is formed, the water resistance is not easy to change greatly, and the electrodes can be ensured to effectively detect the water level for a long time.
Therefore, the water level is detected by using the alternating current weak current signal, so that charged ions in water can periodically move between the electrodes, the service life of the electrodes can be prolonged, and the accuracy and the reliability of water level detection are improved.
The specific process of step S110 for detecting the water level inside the water tank of the water heater will be further described with reference to the schematic diagram of fig. 4 illustrating an embodiment of the water level detection process in the system of the present invention.
And step S210, acquiring an alternating current weak current signal based on the power supply.
For example: by using a power frequency 50Hz alternating current weak current signal, unidirectional movement of the electric ions between the electrodes does not exist, the electric ions periodically move, scale formation of a single electrode is reduced, and water level detection is facilitated.
And step S220, detecting the water level condition in the water tank by using the alternating current weak current signal.
And step S230, outputting a corresponding water level detection result according to the detection of the water level condition.
Therefore, the water level is detected based on the electrode type water level switch by using the alternating current weak current signal, the electrode can be ensured to effectively detect the water level for a long time, and the detection reliability is high and the flexibility is good.
In step S120, water is timely supplied to the water tank according to the detected water level condition in the water tank, so as to realize automatic adjustment of the water level condition in the water tank.
For example: the circuit board (for example, the electrode detection circuit 108) can timely supply water according to the water level state in the water tank by detecting the water level condition in the water tank in real time, automatically adjust, meet the real-time requirements of users and improve the convenience of products.
Therefore, the water level condition in the water tank is adjusted in real time through the water level detection result based on the electrode type water level switch, the automation degree is high, the reliability is high, and the safety is good.
Since the processing and functions of the water level detection system of the water heater of this embodiment are basically corresponding to the embodiments, principles and examples of the water heater, reference may be made to the related descriptions in the foregoing embodiments without being given in detail in the description of this embodiment, which is not described herein again.
Through a large amount of tests verification, adopt the technical scheme of the utility model, use the weak electric signal detection water level of interchange, can reduce the corruption to the electrode, improve electrode live time, reduce the maintenance cost, increase complete machine live time.
In summary, it is readily understood by those skilled in the art that the advantageous modes described above can be freely combined and superimposed without conflict.
The above description is only an example of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (8)
1. An electrode type water level switch, comprising: an acquisition device, an electrode (106), and an electrode detection circuit (108); wherein,
the acquisition device is used for acquiring alternating current weak current signals;
the electrode (106) is used for detecting the water level by using the alternating current weak current signal as a signal source;
and the electrode detection circuit (108) is used for outputting a corresponding water level detection result according to the detection of the electrode (106) on the water level.
2. The switch of claim 1, wherein the obtaining means comprises: a transformer (102);
the transformer (102) is used for acquiring alternating current weak current signals based on an alternating current power supply.
3. The switch of claim 1 or 2, further comprising: an isolation circuit (104);
the isolation circuit (104) is adapted to be arranged on the output side of the acquisition device and/or the input side of the electrode (106) and is used for isolating the alternating current weak current signal from the ground.
4. The switch of claim 1 or 2, further comprising: a regulating circuit (110);
the adjusting circuit (110) is arranged between the acquiring device and the electrode (106) in a fitting mode and used for adjusting the minimum current value between the electrode tips when the electrode at least comprises a bipolar tip.
5. The switch of claim 4, wherein the regulating circuit (110) comprises: a resistance;
the resistor is adapted to be connected in series between an output side of the acquisition device and an input side of the electrode (106).
6. Switch according to claim 1 or 2,
the alternating current weak current signal comprises: a power frequency 50Hz alternating current weak current signal; and/or the presence of a gas in the gas,
the electrode, comprising: four electrode heads.
7. The switch of claim 6, wherein the ac low current signal comprises: and a power frequency 50Hz alternating current 24V signal.
8. A water heater, comprising: an electrode type water level switch as claimed in any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620443935.1U CN205642547U (en) | 2016-05-13 | 2016-05-13 | Electrode type water level switch and water heater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620443935.1U CN205642547U (en) | 2016-05-13 | 2016-05-13 | Electrode type water level switch and water heater |
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| CN205642547U true CN205642547U (en) | 2016-10-12 |
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| CN201620443935.1U Active CN205642547U (en) | 2016-05-13 | 2016-05-13 | Electrode type water level switch and water heater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865575A (en) * | 2016-05-13 | 2016-08-17 | 珠海格力电器股份有限公司 | Electrode type water level switch, water heater and water level detection method thereof |
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2016
- 2016-05-13 CN CN201620443935.1U patent/CN205642547U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865575A (en) * | 2016-05-13 | 2016-08-17 | 珠海格力电器股份有限公司 | Electrode type water level switch, water heater and water level detection method thereof |
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