CN214789309U - Energy-saving terminal of electromagnetic valve coil - Google Patents
Energy-saving terminal of electromagnetic valve coil Download PDFInfo
- Publication number
- CN214789309U CN214789309U CN202022317759.6U CN202022317759U CN214789309U CN 214789309 U CN214789309 U CN 214789309U CN 202022317759 U CN202022317759 U CN 202022317759U CN 214789309 U CN214789309 U CN 214789309U
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- pin
- terminal
- control chip
- current control
- pwm current
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- 230000000087 stabilizing effect Effects 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 239000003990 capacitor Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to an electromagnetic valve coil energy-saving terminal, which comprises a first terminal and a second terminal which are arranged on a circuit board, wherein a PWM current control chip with a patch type structure, an MOS tube and a voltage stabilizing diode are welded on the circuit board; the terminal is connected to the fourth pin input end of the PWM current control chip through a resistor, the seventh pin output end of the PWM current control chip is connected to the grid electrode of the MOS tube H11, the sixth pin of the PWM current control chip is connected to the source electrode of the MOS tube through a resistor, the source electrode of the MOS tube is grounded through a detection current resistor, the drain electrode of the MOS tube is connected to the anode of the voltage stabilizing diode, and two ends of the second terminal are respectively connected to the anode and the cathode of the voltage stabilizing diode. The utility model relates to an energy-conserving terminal of solenoid valve coil, it is through the regulation to the electric current for the solenoid valve has energy-conserving effect, and has effectively reduced the temperature of coil, is favorable to prolonging the life of solenoid valve.
Description
Technical Field
The utility model relates to a be applied to binding post that has energy-conserving effect on solenoid valve belongs to solenoid valve technical field.
Background
At present, the electromagnetic valve is widely applied to an automatic control system. The working principle of the electromagnetic valve is as follows: the valve core is pushed to switch by the action of electromagnetic force generated by the electromagnetic coil, so that the fluid is reversed. Therefore, the control of the electromagnetic valve is realized by controlling the on-off of the electromagnetic coil by the control current. Most solenoid valves require more current at start-up, while at steady state the coil requires about 30% of the rated current. However, since the conventional electromagnetic coil is always operated at a rated current, power consumption is high, the temperature in the coil is continuously increased, and the coil may be burned out. To this end, a solution to the above-mentioned problems is needed.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned not enough, provide an energy-conserving terminal of solenoid valve coil, its regulation through to the electric current for the solenoid valve has energy-conserving effect, and has effectively reduced the temperature of coil, is favorable to prolonging the life of solenoid valve.
The purpose of the utility model is realized like this:
an energy-saving terminal of an electromagnetic valve coil comprises a first terminal and a second terminal which are arranged on a circuit board, wherein a PWM current control chip, an MOS (metal oxide semiconductor) tube and a voltage stabilizing diode of a patch type structure are welded on the circuit board; the model of the PWM current control chip is DRV110 PW;
one pin of the first terminal is grounded, the other pin of the first terminal is divided into three pins, the first pin is connected to the cathode of the voltage stabilizing diode, the second pin is connected to the fourth pin input end of the PWM current control chip through a resistor, the third pin is connected to a voltage dividing circuit formed by two resistors, the middle voltage dividing point of the voltage dividing circuit is connected to the eighth pin enabling end of the PWM current control chip, the fifth pin of the PWM current control chip is grounded, the seventh pin output end of the PWM current control chip is connected to the grid of the MOS tube H11, the sixth pin of the PWM current control chip is divided into two pins, one pin is grounded through a capacitor, the other pin is connected to the source of the MOS tube through a resistor, the source of the MOS tube is grounded through a detection current resistor, the drain of the MOS tube is connected to the anode of the voltage stabilizing diode, and the two ends of the second terminal are respectively connected to the anode and the cathode of the voltage stabilizing diode.
The utility model relates to an energy-conserving terminal of solenoid valve coil, the second foot and the third foot of PWM current control chip are respectively through circuit ground connection, and the first foot and the fourth foot of PWM current control chip are respectively through electric capacity ground connection.
The utility model relates to an energy-conserving terminal of solenoid valve coil, the circuit board is installed in the casing, and terminal one and terminal two peg graft on the conch wall of casing.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a PWM current control chip and MOS pipe cooperation are controlled the direct current of input solenoid valve, make its full current start, reduce the electric current 30% when starting after the time of settlement (if 100ms) to can play energy-conserving effect, and through the electric current of stabilizing 30% maintenance state, the life-span of solenoid valve coil has been prolonged, let the solenoid valve engineer need not worry for designing suitable coil resistance in the design process, design efficiency has been improved.
Drawings
Fig. 1 is a schematic circuit diagram of the energy-saving terminal of the solenoid valve coil of the present invention.
Fig. 2 is an I-t schematic diagram of the energy-saving terminal of the solenoid valve coil of the present invention.
Fig. 3 is the structural schematic diagram of the appearance of the energy-saving terminal of the solenoid valve coil of the present invention.
Fig. 4 is the utility model relates to a circuit board structure schematic diagram of solenoid valve coil energy-saving terminal.
Wherein:
a first terminal P1, a second terminal P2;
a PWM current control chip U1 (DRV 110PW chip manufactured by texas instruments corporation);
MOS transistor H11 (which is an FDMC8622 Mosfet chip from on semiconductor);
a zener diode D1.
Detailed Description
Referring to fig. 1 to 4, the utility model relates to an energy-conserving terminal of solenoid valve coil, include terminal one P1 and terminal two P2 installed on the circuit board, the welding has PWM current control chip U1, MOS pipe H11 and zener diode D1 of SMD structure on the circuit board; the model of the PWM current control chip U1 is DRV110 PW;
one pin of a terminal P1 is grounded, the other pin is divided into three paths, the first path is connected to the cathode of a voltage stabilizing diode D1, the second path is connected to the input end of the fourth pin of a PWM current control chip U1 through a resistor, the third path is connected to a voltage dividing circuit formed by two resistors, the middle voltage dividing point of the voltage dividing circuit is connected to the eighth pin enabling end of the PWM current control chip U1, the second pin and the third pin of the PWM current control chip U1 are respectively grounded through circuits, the first pin and the fourth pin of the PWM current control chip U1 are respectively grounded through capacitors, the fifth pin of the PWM current control chip U1 is grounded, the seventh pin output end of the PWM current control chip U1 is connected to the grid of a MOS tube H11, the sixth pin of the PWM current control chip U1 is divided into another path, one path is grounded through a capacitor, the MOS circuit is connected to the source of the MOS tube H11 through a resistor, the source of the MOS tube H11 is grounded through a detection current resistor, the drain of the MOS tube H11 is connected to the positive pole of a voltage stabilizing diode D1, two ends of the second terminal P2 are respectively connected to the anode and the cathode of the zener diode D1;
when the electromagnetic valve is used, the P1 end is connected with input direct current Vs, and the Vs can be 12V to 24V direct current voltage according to different requirements of an actual electromagnetic valve; the P2 terminals are Coil + and Coil-output terminals to the electromagnetic Coil, and in actual use, because the iron core is not magnetic, the Coil + and Coil-can be connected with both ends of the electromagnetic Coil to be effective. The specification of the zener diode D1 is 600V 2A, and the detection current resistance is a resistance R in the figure3Maintaining the state current Imaintain=50mV/R3According to the formula, R can be changed according to the current requirements of different electromagnetic valves3To be full ofThe design requirements are met.
The start-up procedure after power-up is shown in fig. 2:
stage 1: the direct current voltage Vs enables to trigger the U1 to start working, and the current starts to rise;
stage 2: due to the establishment of the magnetic field, the magnetic core in the electromagnetic valve starts to move, and a reverse electromotive force is generated in the moving process and is opposite to the magnetic field of the electromagnetic coil, so that the current is reduced;
stage 3: after the magnetic core is moved, the current continuously rises;
and 4, stage: the PWM period of U1 comes, so that the current is limited to save energy;
stage 5 and 6: after the PWM signal of 100ms is delayed, the state is maintained, the current is controlled to be a low value, the iron core state is maintained, and meanwhile, the current is saved.
Referring to fig. 3 and 4, the circuit board is mounted in the housing, and the first terminal P1 and the second terminal P2 are plugged into the wall of the housing;
in addition: it should be noted that the above-mentioned embodiment is only a preferred embodiment of the present patent, and any modification or improvement made by those skilled in the art based on the above-mentioned conception is within the protection scope of the present patent.
Claims (3)
1. The utility model provides an energy-conserving terminal of solenoid valve coil which characterized in that: the circuit board is welded with a PWM current control chip with a patch type structure, an MOS tube and a voltage stabilizing diode; the model of the PWM current control chip is DRV110 PW;
one pin of the first terminal is grounded, the other pin of the first terminal is divided into three pins, the first pin is connected to the cathode of the voltage stabilizing diode, the second pin is connected to the fourth pin input end of the PWM current control chip through a resistor, the third pin is connected to a voltage dividing circuit formed by two resistors, the middle voltage dividing point of the voltage dividing circuit is connected to the eighth pin enabling end of the PWM current control chip, the fifth pin of the PWM current control chip is grounded, the seventh pin output end of the PWM current control chip is connected to the grid of the MOS tube H11, the sixth pin of the PWM current control chip is divided into two pins, one pin is grounded through a capacitor, the other pin is connected to the source of the MOS tube through a resistor, the source of the MOS tube is grounded through a detection current resistor, the drain of the MOS tube is connected to the anode of the voltage stabilizing diode, and the two ends of the second terminal are respectively connected to the anode and the cathode of the voltage stabilizing diode.
2. The coil energy-saving terminal of the electromagnetic valve as claimed in claim 1, characterized in that: the second pin and the third pin of the PWM current control chip are grounded through a circuit respectively, and the first pin and the fourth pin of the PWM current control chip are grounded through a capacitor respectively.
3. The coil energy-saving terminal of the electromagnetic valve as claimed in claim 1, characterized in that: the circuit board is arranged in the shell, and the first terminal and the second terminal are inserted into the wall of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022317759.6U CN214789309U (en) | 2020-10-19 | 2020-10-19 | Energy-saving terminal of electromagnetic valve coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022317759.6U CN214789309U (en) | 2020-10-19 | 2020-10-19 | Energy-saving terminal of electromagnetic valve coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214789309U true CN214789309U (en) | 2021-11-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022317759.6U Active CN214789309U (en) | 2020-10-19 | 2020-10-19 | Energy-saving terminal of electromagnetic valve coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214789309U (en) |
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2020
- 2020-10-19 CN CN202022317759.6U patent/CN214789309U/en active Active
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