CN202815607U - Liquid level automatic controller - Google Patents
Liquid level automatic controller Download PDFInfo
- Publication number
- CN202815607U CN202815607U CN 201220409591 CN201220409591U CN202815607U CN 202815607 U CN202815607 U CN 202815607U CN 201220409591 CN201220409591 CN 201220409591 CN 201220409591 U CN201220409591 U CN 201220409591U CN 202815607 U CN202815607 U CN 202815607U
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- CN
- China
- Prior art keywords
- resistor
- relay
- liquid level
- control
- power circuit
- 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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Abstract
Disclosed is a liquid level automatic controller, comprising a three-phase power supply, a power supply circuit, and an automatic control circuit, wherein the automatic control circuit comprises a high liquid level electrode, a low liquid level electrode, a main electrode, a relay, a control transistor, a fifth diode, an AC contactor, a first resistor, and a second resistor. The liquid level automatic controller of the utility model is capable of realizing automatic liquid feeding control with no personnel on duty. The liquid level automatic controller of the utility model features convenient installation, high sensitivity, and precise control. The liquid level automatic controller of the utility model is applicable to the reservoirs in countryside, the water tanks for industrial boilers or tap water factories, and the like. The liquid level automatic controller has wide application scope and is easy to promote.
Description
Technical field
The utility model relates to a kind of fluid level controller, relates in particular to a kind of liquid level self-controller.
Background technology
Existing fluid level controller, element is more, complex structure, installation inconvenient, sensitivity is not high, the control out of true, causes fluid level controller to be unfavorable for the cistern of using for the rural area, also is unfavorable for the water tank for Industrial Boiler or tap water factory, range of application is narrow, is not easy to popularize.
Summary of the invention
The purpose of this utility model provides a kind of liquid level self-controller with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises three-phase supply, power circuit and automatic control circuit, described automatic control circuit comprises high level electrode, low level electrode, central electrode, relay, the control transistor, the 5th diode, A.C. contactor, the first resistor and the second resistor, the first end of described the first resistor simultaneously with described high level electrode be connected the first end of normal open switch of relay and be connected, the second end of the normal open switch of described relay is connected with described low level electrode, the second end while of described the first resistor and the first end of described relay, the negative pole of described the 5th diode be connected the cathode output end of power circuit and connect, the second end of described relay simultaneously with the positive pole of described the 5th diode be connected the transistorized collector of control and be connected, the transistorized base stage of described control simultaneously and be connected central electrode be connected the first end connection of the second resistor, the second end of described the second resistor simultaneously with the transistorized emitter of described control be connected the cathode output end of power circuit and be connected, the 3rd live wire of described three-phase supply is connected with the first input end of described power circuit, the second input end of described power circuit simultaneously with the neutral line of described three-phase supply be connected the end of normally closed switch of relay and be connected, the other end of the normally closed switch of described relay is connected with the 3rd live wire of described three-phase supply with described A.C. contactor series connection is rear, and the normal open switch of described A.C. contactor is connected in series in the power input of fluid filling pump motor.
Particularly, described power circuit comprises power transformer, rectification circuit and filter capacitor, the first input end of described power transformer is connected with the 3rd live wire of described three-phase supply, the second input end of described power transformer is connected with the neutral line of described three-phase supply, the output terminal of described power transformer is connected with the input end of described rectification circuit, is connected with described filter capacitor between two output terminals of described rectification circuit.
The beneficial effects of the utility model are:
The utility model can be realized unmanned automatic liquid-feeding control, have that element is few, simple in structure, simple installation, highly sensitive, control accurate advantage.The utility model both can be used for the cistern that the rural area is used, and also can be used for the water tank of Industrial Boiler or tap water factory, and applied range is convenient to popularize.
Description of drawings
Fig. 1 is circuit diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1: the utility model comprises three-phase supply, power circuit and automatic control circuit, power circuit comprises power transformer T, rectification circuit VD and filter capacitor C, the first input end of power transformer T is connected with the 3rd live wire L3 of three-phase supply, the second input end of power transformer T is connected with the neutral line N of three-phase supply, the output terminal of power transformer T is connected with the input end of rectification circuit VD, be connected with filter capacitor C between two output terminals of rectification circuit VD, automatic control circuit comprises high level electrode A, low level electrode B, central electrode C, relay K, control transistor VT, the 5th diode VD5, A.C. contactor KM, the first resistor R1 and the second resistor R2, the first end of the first resistor R1 simultaneously and high level electrode A be connected the first end of normal open switch K2 with relay K and be connected, the second end of the normal open switch K2 of relay K is connected with low level electrode B, the second end while of the first resistor R1 and the first end of relay K, the negative pole of the 5th diode VD5 is connected first end and is connected with filter capacitor C, the second end of relay K is connected with the collector that is connected transistor VT with the positive pole of the 5th diode VD5 simultaneously, the base stage of control transistor VT simultaneously and central electrode C be connected the first end connection of resistor R2, the second end of the second resistor R2 simultaneously and the emitter of control transistor VT be connected the second end with filter capacitor C and be connected, the 3rd live wire L3 of three-phase supply is connected with the first input end of power circuit, the second input end of power circuit simultaneously and the neutral line N of three-phase supply be connected the end of normally closed switch K1 with relay K and be connected, the other end of the normally closed switch K1 of relay K is connected with the 3rd live wire L3 of three-phase supply with A.C. contactor KM series connection is rear, and the normal open switch K2 of A.C. contactor KM is connected in series in the power input of fluid filling pump motor M.
Claims (1)
1. liquid level self-controller, it is characterized in that: comprise three-phase supply, power circuit and automatic control circuit, described automatic control circuit comprises high level electrode, low level electrode, central electrode, relay, the control transistor, the 5th diode, A.C. contactor, the first resistor and the second resistor, the first end of described the first resistor simultaneously with described high level electrode be connected the first end of normal open switch of relay and be connected, the second end of the normal open switch of described relay is connected with described low level electrode, the second end while of described the first resistor and the first end of described relay, the negative pole of described the 5th diode be connected the cathode output end of power circuit and connect, the second end of described relay simultaneously with the positive pole of described the 5th diode be connected the transistorized collector of control and be connected, the transistorized base stage of described control simultaneously and be connected central electrode be connected the first end connection of the second resistor, the second end of described the second resistor simultaneously with the transistorized emitter of described control be connected the cathode output end of power circuit and be connected, the 3rd live wire of described three-phase supply is connected with the first input end of described power circuit, the second input end of described power circuit simultaneously with the neutral line of described three-phase supply be connected the end of normally closed switch of relay and be connected, the other end of the normally closed switch of described relay is connected with the 3rd live wire of described three-phase supply with described A.C. contactor series connection is rear, and the normal open switch of described A.C. contactor is connected in series in the power input of fluid filling pump motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220409591 CN202815607U (en) | 2012-08-18 | 2012-08-18 | Liquid level automatic controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220409591 CN202815607U (en) | 2012-08-18 | 2012-08-18 | Liquid level automatic controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202815607U true CN202815607U (en) | 2013-03-20 |
Family
ID=47874460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220409591 Expired - Fee Related CN202815607U (en) | 2012-08-18 | 2012-08-18 | Liquid level automatic controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202815607U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592964A (en) * | 2012-08-18 | 2014-02-19 | 四川欧润特软件科技有限公司 | Liquid level automatic controller |
-
2012
- 2012-08-18 CN CN 201220409591 patent/CN202815607U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592964A (en) * | 2012-08-18 | 2014-02-19 | 四川欧润特软件科技有限公司 | Liquid level automatic controller |
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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: 20130320 Termination date: 20130818 |