CN203893437U - Inductive water level control system of electric water boiler - Google Patents
Inductive water level control system of electric water boiler Download PDFInfo
- Publication number
- CN203893437U CN203893437U CN201420265985.6U CN201420265985U CN203893437U CN 203893437 U CN203893437 U CN 203893437U CN 201420265985 U CN201420265985 U CN 201420265985U CN 203893437 U CN203893437 U CN 203893437U
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- CN
- China
- Prior art keywords
- positive
- transparent quartz
- water
- water tank
- approach switch
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- 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 - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 230000001939 inductive effect Effects 0.000 title abstract 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000010453 quartz Substances 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 18
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 239000011521 glass Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 2
- 230000003020 moisturizing effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Control Of Non-Electrical Variables (AREA)
Abstract
The utility model discloses an inductive water level control system of an electric water boiler. The inductive water level control system comprises a water tank, a PNP (positive-negative-positive) type proximity switch, an NPN (negative-positive-negative) type proximity switch, a transparent quartz tube and a metal float ball. A water inlet tube is arranged on the water tank, the length direction of the transparent quartz tube is consistent with the height direction of the water tank, the upper end and the lower end of the transparent quartz tube are respectively communicated with the water tank, and the metal float ball is arranged in the transparent quartz tube; the PNP type proximity switch and the NPN type proximity switch are respectively opposite to the upper portion and the lower portion of the transparent quartz glass tube. The inductive water level control system with the structure has the advantages that the metal float ball floats in the transparent quartz glass tube and is inductively matched with the NPN type proximity switch when the internal water level of the water tank reaches the lower portion of the transparent quartz glass tube, so that water can be injected into the water tank; when the internal water level of the water tank reaches the upper portion of the transparent quartz glass tube, a power source is switched off, so that the water stops being injected into the water tank; the inductive water level control system is convenient to use; shortcomings that signals are outputted by electrodes and the sensitivity is affected due to water scales in the prior art can be overcome; the inductive water level control system is safe and reliable.
Description
Technical field
The utility model relates to electric water boiler and boiler technology field, especially water receptacle fluid level control device.
Background technology
Electric water boiler and the boiler of use are generally controlled liquid level with electrode on the market at present, because water can produce incrustation scale when being heated to uniform temperature, and incrustation scale can stick to electrode surface, when serious, can cause metal electrode non-conductive and malfunctioning, finally make to can not get effectively controlling and affect the normal work of whole equipment into water.Currently except using electrode to control liquid level, use in addition float switch to replace, equally can be because the adhesion of incrustation scale increases the weight of ball float and cause cisco unity malfunction.
Utility model content
The purpose of this utility model is: a kind of inductance type tank level control system of electric water boiler is provided, and it can prevent that the generation because of incrustation scale from affecting the control of water level, long service life.
The utility model is achieved in that a kind of inductance type tank level control system of electric water boiler, and it comprises water tank, has water inlet pipe on water tank; Its special character is: also comprise positive-negative-positive approach switch, NPN type approach switch, transparent quartz tube and metal ball float,
The length direction of described transparent quartz tube is consistent with the short transverse of water tank, the upper/lower terminal of transparent quartz tube be connected with water tank respectively, metal ball float is arranged in transparent quartz tube;
Positive-negative-positive approach switch is relative with the upper and lower of transparent quartz glass tube respectively with NPN type approach switch.
The inductance type tank level control system of described a kind of electric water boiler, its special character is: described positive-negative-positive approach switch and NPN type approach switch are separately positioned on the upper and lower of transparent quartz tube.
The inductance type tank level control system of described a kind of electric water boiler, its special character is: described NPN type approach switch and positive-negative-positive approach switch are separately positioned on water tank, NPN type approach switch is positioned at positive-negative-positive approach switch below; Positive-negative-positive approach switch is relative with the upper and lower of transparent quartz tube respectively with NPN type approach switch.
The inductance type tank level control system of a kind of electric water boiler of the utility model, owing to adopting such structure, metal ball float is floating in transparent glass tube, when the water level in water tank arrives transparent glass tube bottom, metal ball float coordinates with the induction of NPN type approach switch, NPN type approach switch output low level signal is also delivered to control device, is water tank water filling; When the water level in water tank arrives the top of transparent glass tube, metal ball float and positive-negative-positive approach switch output high level signal, stopped as water tank water filling by dump; Easy to use.Overcome in prior art, electrode output signal, because the impact of incrustation scale affects sensitivity; Safe and reliable.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model.
Fig. 2 is A-A view of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, a kind of inductance type tank level control system of electric water boiler, it comprises water tank 1, has water inlet pipe 1A on water tank 1; Also comprise positive-negative-positive approach switch 2, NPN type approach switch 3, transparent quartz tube 4 and metal ball float 5, described metal ball float 5 also can be used the cylindrical metal thing of the hollow of closed at both ends to replace.
The length direction of described transparent quartz tube 4 is consistent with the short transverse of water tank 1, the upper/lower terminal of transparent quartz tube 4 be connected with water tank 1 respectively, metal ball float 5 is arranged in transparent quartz tube 4;
Positive-negative-positive approach switch 2 is relative with the upper and lower of transparent quartz glass tube 4 respectively with NPN type approach switch 3.
Described positive-negative-positive approach switch 2 and NPN type approach switch 3 are separately positioned on the upper and lower of transparent quartz tube 4 outer surfaces.
Also can be that described NPN type approach switch 3 and positive-negative-positive approach switch 2 are separately positioned on water tank 1, positive-negative-positive approach switch 2 be positioned at NPN type approach switch 3 tops; Positive-negative-positive approach switch 2 is relative with the upper and lower of transparent quartz tube 4 respectively with NPN type approach switch 3.
In use, NPN type approach switch 3 is connected with a single-chip microcomputer respectively with positive-negative-positive approach switch 2, and single-chip microcomputer is connected with magnetic valve, and magnetic valve is arranged on water route, and controlling water route is water tank 1 water filling, or stops water filling.When metal ball float 5 is positioned at the bottom of transparent glass tube 4, NPN type approach switch 3 output low level signals, single-chip microcomputer closes electromagnetism and is opened for water tank 1 moisturizing; Along with the water level in water tank 1 rises, metal ball float 5 moves up in transparent glass tube 4; When metal ball float 5 and positive-negative-positive approach switch 2 output high level signals, Single-chip Controlling closed electromagnetic valve, stops moisturizing.
Above-described is only preferential embodiment of the present utility model.It should be pointed out that for the person of ordinary skill of the art, in the situation that not departing from the utility model principle, can also make some improvement and modification, this is also considered as protection domain of the present utility model.
Claims (3)
1. an inductance type tank level control system for electric water boiler, it comprises water tank, has water inlet pipe on water tank; It is characterized in that: also comprise positive-negative-positive approach switch, NPN type approach switch, transparent quartz tube and metal ball float,
The length direction of described transparent quartz tube is consistent with the short transverse of water tank, the upper/lower terminal of transparent quartz tube be connected with water tank respectively, metal ball float is arranged in transparent quartz tube;
Positive-negative-positive approach switch is relative with the upper and lower of transparent quartz glass tube respectively with NPN type approach switch.
2. the inductance type tank level control system of a kind of electric water boiler according to claim 1, is characterized in that: described positive-negative-positive approach switch and NPN type approach switch are separately positioned on the upper and lower of transparent quartz tube.
3. the inductance type tank level control system of a kind of electric water boiler according to claim 1, is characterized in that: described NPN type approach switch and positive-negative-positive approach switch are separately positioned on water tank, and NPN type approach switch is positioned at positive-negative-positive approach switch below; Positive-negative-positive approach switch is relative with the upper and lower of transparent quartz tube respectively with NPN type approach switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420265985.6U CN203893437U (en) | 2014-05-23 | 2014-05-23 | Inductive water level control system of electric water boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420265985.6U CN203893437U (en) | 2014-05-23 | 2014-05-23 | Inductive water level control system of electric water boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203893437U true CN203893437U (en) | 2014-10-22 |
Family
ID=51719832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420265985.6U Expired - Lifetime CN203893437U (en) | 2014-05-23 | 2014-05-23 | Inductive water level control system of electric water boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203893437U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110327521A (en) * | 2019-06-25 | 2019-10-15 | 桐乡市第一人民医院 | A kind of ventilator with automatic fluid filling function |
-
2014
- 2014-05-23 CN CN201420265985.6U patent/CN203893437U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110327521A (en) * | 2019-06-25 | 2019-10-15 | 桐乡市第一人民医院 | A kind of ventilator with automatic fluid filling function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141022 |