CN2267577Y - Energy-saving and control box for liquid, steam or water pressure equipment - Google Patents
Energy-saving and control box for liquid, steam or water pressure equipment Download PDFInfo
- Publication number
- CN2267577Y CN2267577Y CN 96234887 CN96234887U CN2267577Y CN 2267577 Y CN2267577 Y CN 2267577Y CN 96234887 CN96234887 CN 96234887 CN 96234887 U CN96234887 U CN 96234887U CN 2267577 Y CN2267577 Y CN 2267577Y
- Authority
- CN
- China
- Prior art keywords
- liquid
- motor
- contact
- normally
- coil
- 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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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to an energy-saving and control box for liquid, steam or water pressure device, which comprises a box body. The utility model is characterized in that the control circuit of the utility model is composed of three contactors, a pressure relay, a thermal relay, a start-up button and a stop button; the star/triangle conversion of a controllable three-phase AC motor can be changed according to the change of fluid pressure when the controllable three-phase AC motor is in action; so the electric energy waste caused by light load can be avoided. The utility model has the advantages of energy saving, simple structure, convenient operation, economy and utility.
Description
The utility model relates to a kind of motor control assembly, particularly a kind of liquid, vapour, hydraulic equipment Energy Saving Control case.
At present, the control of liquid, vapour, hydraulic equipment motor starting, operational mode still is to use magnetic starter or star-delta starter, all can not accurately controls the operational mode of motor, often cause underloading waste electric energy according to required fluid pressure.
The purpose of this utility model is in order to overcome above-mentioned weak point, to carry out the star/triangle conversion and provide a kind of control motor to be in operation according to change in fluid pressure, and is simple in structure, liquid easy to use, vapour, hydraulic equipment Energy Saving Control case.
Liquid of the present utility model, vapour, hydraulic equipment Energy Saving Control case comprise casing, and the control circuit that it is characterized in that it is by three contactors, and pressure switch and thermal relay start, stop button forms.
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model electrical schematic diagram.
Now illustrated embodiment is made detailed description to the utility model in conjunction with the accompanying drawings.
Contactor KM
2, KM
3Coil one end is connected in series the moving contact SP that opens of pressure switch SP respectively
2, KM
3Normally-closed contact KM
3-1, SP make contact SP
1, KM
2Normally-closed contact KM
2-1Back and contactor KM
1Coil, KM
1Normally opened contact KM
1-1, start button SB
2One end also meets SB
2, KM
1-1The other end also meets stop button SB
1One end, SB
1The normally-closed contact FR of other end serial connection thermal relay FR
1, fuse FU
2-1The back connects power input one phase line, KM
1, KM
2, KM
3The coil other end and connect after be connected in series fuse FU again
2-2The back connects another phase line of power input.Power supply input triple line serial connection KM
1Three groups of normally opened contact KM
1-2, connect motor three winding inputs behind the thermal relay FR coil, the motor three winding other ends connect KM respectively
2Three groups of normally opened contact KM
2-2One end, KM
2-2The other end also connects, between motor three windings two ends and meet KM
3Three groups of normally opened contact KM
3-2Pressure switch SP is installed in liquid, vapour, the hydraulic pressure passage, and other elements are installed in the casing, and draws each terminals.
The utility model is owing to adopt above design, provide a kind of may command three-phase alternating-current motor to be in operation and carry out liquid, vapour, the hydraulic equipment Energy Saving Control case of star/triangle conversion according to the fluid pressure size variation, avoid underloading waste electric energy, energy-saving effect is obvious, simple in structure, easy to use, economical and practical.
Claims (1)
1, a kind of liquid, vapour, hydraulic equipment Energy Saving Control case comprise casing, and the control circuit that it is characterized in that it is by three contactors, and pressure switch and thermal relay start, stop button forms contactor KM
2, KM
3Coil one end is connected in series the moving contact SP that opens of pressure switch SP respectively
2, KM
3Normally-closed contact KM
3-1, SP make contact SP
1, KM
aNormally-closed contact KM
2-1Back and contactor KM
1Coil, KM
1Normally opened contact KM
1-1, start button SB
2One end also meets SB
2, KM
1-1The other end also meets stop button SB
1One end, SB
1The normally-closed contact FR of other end serial connection thermal relay FR
1The back connects power input one phase line, KM
1, KM
2, KM
3The coil other end also connects another phase line of back connection power input, power supply input triple line serial connection KM
1Three groups of normally opened contact KM
1-2, connect motor three winding inputs behind the thermal relay FR coil, the motor three winding other ends connect KM respectively
2Three groups of normally opened contact KM
2-2One end, KM
2-2The other end also connects, between motor three windings two ends and meet KM
3Three groups of normally opened contact KM
3-2, pressure switch SP is installed in liquid, vapour, the hydraulic pressure passage, and other elements are installed in the casing, and draw each terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96234887 CN2267577Y (en) | 1996-05-17 | 1996-05-17 | Energy-saving and control box for liquid, steam or water pressure equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96234887 CN2267577Y (en) | 1996-05-17 | 1996-05-17 | Energy-saving and control box for liquid, steam or water pressure equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2267577Y true CN2267577Y (en) | 1997-11-12 |
Family
ID=33911115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96234887 Expired - Fee Related CN2267577Y (en) | 1996-05-17 | 1996-05-17 | Energy-saving and control box for liquid, steam or water pressure equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2267577Y (en) |
-
1996
- 1996-05-17 CN CN 96234887 patent/CN2267577Y/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 |