CN216014013U - Standby control system for electric lifting table - Google Patents
Standby control system for electric lifting table Download PDFInfo
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- CN216014013U CN216014013U CN202122692124.9U CN202122692124U CN216014013U CN 216014013 U CN216014013 U CN 216014013U CN 202122692124 U CN202122692124 U CN 202122692124U CN 216014013 U CN216014013 U CN 216014013U
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Abstract
The utility model discloses a standby control system for an electric lifting table, which comprises a power circuit and a standby control circuit connected with the power circuit, wherein the standby control circuit comprises an infrared receiving circuit, an inverter circuit, an isolation current-limiting circuit, a sampling voltage-limiting circuit, a voltage-doubling rectifying circuit, a filter circuit, a voltage comparison circuit, an optical coupling silicon controlled circuit and an electronic switch, a servo motor of an electric push rod is connected with the electronic switch, the sampling voltage-limiting circuit, the voltage-doubling rectifying circuit, the filter circuit, the voltage comparison circuit and the optical coupling silicon controlled circuit are sequentially connected to form a closed loop, the infrared receiving circuit is connected with the inverter circuit, the inverter circuit is connected with the isolation current-limiting circuit, the isolation current-limiting circuit is connected with the filter circuit, the infrared receiving circuit is used for receiving infrared control signals, and the on-off of the electronic switch is controlled by the on-off of the optical coupling silicon controlled circuit, the standby state of the servo motor of the electric push rod is awakened, the standby power consumption is less than 1W, and the electric energy consumption is greatly saved.
Description
Technical Field
The utility model relates to an electric office table technical field, concretely relates to standby control system for electric lift table.
Background
The electric lifting table generally uses electricity as a power source, the height of the lifting table is adjusted by controlling a mechanical device through a motor, and the height of the lifting table can also be adjusted by controlling an air pressure rod or a hydraulic rod through a compressor. At present, electric lift table generally adopts the power supply, after the altitude mixture control at electric lift table targetting in place, for saving power consumption, can control electrical equipment generally and get into standby mode, in traditional standby treatment process, control system's MCU, hall detection circuit, memory etc. still are in power supply state, lean on MCU to get into standby state during dormancy, other peripheral hardware all still are in power supply state, still can consume the system current this moment, thereby make standby energy consumption hardly reduce, standby energy consumption has been increased.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects existing in the prior art, the utility model provides a standby control system for an electric lifting table.
The utility model discloses realize that the technical scheme that above-mentioned technological effect adopted is:
a standby control system for an electric lifting table comprises a power supply circuit connected with a power supply and a standby control circuit connected with the power supply circuit, wherein the standby control circuit comprises an infrared receiving circuit, an inverter circuit, an isolation current-limiting circuit, a sampling voltage-limiting circuit, a voltage-doubling rectifying circuit, a filter circuit, a voltage comparison circuit, an optical coupling silicon-controlled circuit and an electronic switch, a servo motor of an electric push rod is connected with the electronic switch, the sampling voltage-limiting circuit, the voltage-doubling rectifying circuit, the filter circuit, the voltage comparison circuit and the optical coupling silicon-controlled circuit are sequentially connected to form a closed loop, the infrared receiving circuit is connected with the inverter circuit, the inverter circuit is connected with the isolation current-limiting circuit, the isolation current-limiting circuit is connected with the filter circuit, and the infrared receiving circuit is used for receiving an infrared control signal, and the on-off of the electronic switch is controlled by the on-off of the optocoupler silicon controlled circuit, so that the standby state awakening of the servo motor of the electric push rod is realized.
Preferably, in the above standby control system for an electric lifting table, the power circuit comprises a power voltage stabilizing circuit, a power rectifying circuit and a power filtering circuit connected with a power supply, the power supply voltage stabilizing circuit comprises a capacitor C1 and a diode D2, the power supply rectifying circuit comprises a rectifying diode D1, the power supply filter circuit comprises a capacitor C2 and a capacitor C3, a resistor R1 is connected between the anode of the capacitor C1 and the cathode of a diode D2, the positive pole of rectifier diode D1 is connected with electric capacity C1's negative pole, and electric capacity C2's positive pole is connected with rectifier diode D1's negative pole, and electric capacity C2's negative pole ground connection, electric capacity C3 connect in parallel at electric capacity C2's both ends, and the power warp power supply circuit output is all the way to the 6V DC voltage of standby control circuit power supply, another way is through resistance R2 step-down, and electric capacity C4 filters, and the output is the 3.4V DC voltage of infrared receiving circuit power supply.
Preferably, in the above standby control system for an electric lift table, the inverting circuit includes a voltage comparator IC1, an inverting input terminal of the voltage comparator IC1 is connected to the infrared receiving circuit, a voltage input terminal of the voltage comparator IC1 is connected to a 6V dc voltage, a non-inverting input terminal of the voltage comparator IC1 is connected to the voltage comparator circuit, the infrared receiving circuit receives an infrared pulse signal, outputs a negative pulse signal, and outputs a positive pulse signal to the isolation current limiting circuit through the voltage comparator IC1 in an inverting manner.
Preferably, in the above standby control system for an electric lift table, the isolation current limiting circuit includes a diode D8 and a current limiting resistor R6 connected in sequence to an output terminal of the voltage comparator IC 1.
Preferably, in the above standby control system for an electric lift table, the voltage comparison circuit includes a voltage comparator IC2, a voltage input terminal of the voltage comparator IC2 is connected to a 6V dc voltage, an inverting input terminal of the voltage comparator IC2 is connected to the 6V dc voltage, and a non-inverting input terminal of the voltage comparator IC2 is connected to the filter circuit.
Preferably, in the above standby control system for electric lift table, the electronic switch includes silicon controlled rectifier Q1, the opto-coupler silicon controlled rectifier circuit includes opto-coupler silicon controlled rectifier IC3 and light emitting diode LED, the light emitting diode LED with the output of voltage comparator IC2 is connected, the light emitting diode LED through resistance R7 with opto-coupler silicon controlled rectifier IC3 is connected, opto-coupler silicon controlled rectifier IC3 with silicon controlled rectifier Q1 is connected.
Preferably, in the above standby control system for an electric lifting table, the sampling voltage limiting circuit includes a sampling resistor R4, a voltage limiting diode D3 and a voltage limiting diode D4, and two ends of the sampling resistor R4 are connected in parallel between the voltage limiting diode D3 and the voltage limiting diode D4.
Preferably, in the above standby control system for an electric lift table, the voltage-doubling rectifying circuit includes a capacitor C7 and a diode D5, and the filter circuit includes a capacitor C5, a diode D6 and a capacitor C6 connected in series.
The utility model has the advantages that: the utility model discloses a sample voltage limiting circuit detectable electric putter's servo motor's operating current size to judge whether servo motor is in the drive state of lift adjustment still adjusts the auto-lock state after targetting in place, when the operating current who detects servo motor is the low current state under the auto-lock state, accessible electronic switch control system work is at standby state, after receiving infrared induction signal, accessible opto-coupler silicon controlled rectifier circuit triggers electronic switch and makes the power normally supply power, standby power consumption is less than 1W, electric energy consumption has been practiced thrift greatly.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention;
fig. 2 is a circuit diagram of the present invention.
Detailed Description
For a further understanding of the invention, reference is made to the following description taken in conjunction with the accompanying drawings and specific examples, in which:
in the description of the present application, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.
Referring to fig. 1, as shown in the drawings, an embodiment of the present invention provides a standby control system for an electric lifting table, the standby control system includes a power circuit connected to a power supply and an electric push rod, and the power circuit is connected to the standby control circuit. Specifically, as shown in fig. 1, the standby control circuit includes an infrared receiving circuit, an inverter circuit, an isolation current limiting circuit, a sampling voltage limiting circuit, a voltage doubling rectifier circuit, a filter circuit, a voltage comparison circuit, an optocoupler thyristor circuit, and an electronic switch. The servo motor of the electric push rod is connected with an electronic switch, and the electronic switch, the sampling voltage limiting circuit, the voltage doubling rectifying circuit, the filter circuit, the voltage comparison circuit and the optical coupling silicon controlled rectifier circuit are sequentially connected to form a closed loop. Specifically, as shown in fig. 1, the infrared receiving circuit is connected to an inverter circuit, the inverter circuit is connected to an isolation current limiting circuit, and the isolation current limiting circuit is connected to a filter circuit. The sampling voltage limiting circuit controls the on-off of the optocoupler silicon controlled rectifier by detecting the current of the servo motor flowing through the electric push rod, and when the sampling voltage limiting circuit detects that the current passing through the servo motor is close to or less than the standby current, the optocoupler silicon controlled rectifier is automatically switched off, and the electronic switch is simultaneously switched off, so that the servo motor and the power supply are completely switched off, and the servo motor enters a standby state. The infrared receiving circuit receives the infrared control signal, and the on-off of the electronic switch is controlled by the on-off of the optocoupler silicon controlled circuit, so that the standby state awakening of the servo motor of the electric push rod can be realized.
Further, in the preferred embodiment of the present invention, as shown in fig. 2, the power circuit includes a power voltage stabilizing circuit connected to the power source, a power rectifying circuit and a power filter circuit, wherein the power voltage stabilizing circuit includes a capacitor C1 and a diode D2, the power rectifying circuit includes a rectifying diode D1, and the power filter circuit includes a capacitor C2 and a capacitor C3. A resistor R1 is connected between the anode of the capacitor C1 and the cathode of the diode D2, the anode of the rectifier diode D1 is connected with the cathode of the capacitor C1, the anode of the capacitor C2 is connected with the cathode of the rectifier diode D1, the cathode of the capacitor C2 is grounded, and the capacitor C3 is connected in parallel with two ends of the capacitor C2. The power supply outputs 6V direct current voltage for supplying power to the standby control circuit through the power supply circuit, the other path of the power supply is reduced in voltage through the resistor R2, the capacitor C4 filters the voltage, and 3.4V direct current voltage for supplying power to the infrared receiving circuit is output.
Further, in the preferred embodiment of the present invention, as shown in fig. 2, the inverting circuit includes a voltage comparator IC1, the inverting input terminal of the voltage comparator IC1 is connected to the infrared receiving circuit, the voltage input terminal of the voltage comparator IC1 is connected to the 6V dc voltage, the positive phase input terminal of the voltage comparator IC1 is connected to the voltage comparator circuit, the infrared receiving circuit outputs the negative pulse signal after receiving the infrared pulse signal, and the positive pulse signal is output to the isolated current limiting circuit through the voltage comparator IC1 in the opposite phase. The isolation current limiting circuit comprises a diode D8 and a current limiting resistor R6 which are sequentially connected with the output end of the voltage comparator IC 1. The voltage comparison circuit comprises a voltage comparator IC2, wherein a voltage input end of the voltage comparator IC2 is connected with 6V direct current voltage, an inverting input end of the voltage comparator IC2 is connected with 6V direct current voltage, and a non-inverting input end of the voltage comparator IC2 is connected with a filter circuit.
Further, in the preferred embodiment of the present invention, as shown in fig. 2, the electronic switch includes a thyristor Q1, the optocoupler-controlled silicon circuit includes an optocoupler thyristor IC3 and a light emitting diode LED, the light emitting diode LED is connected with the output end of the voltage comparator IC2, the light emitting diode LED is connected with the optocoupler thyristor IC3 through a resistor R7, and the optocoupler thyristor IC3 is connected with a thyristor Q1. The sampling voltage-limiting circuit comprises a sampling resistor R4, a voltage-limiting diode D3 and a voltage-limiting diode D4, and two ends of the sampling resistor R4 are connected between the voltage-limiting diode D3 and the voltage-limiting diode D4 in parallel. The voltage-multiplying rectifying circuit comprises a capacitor C7 and a diode D5, and the filter circuit comprises a capacitor C5, a diode D6 and a capacitor C6 which are connected in series.
Specifically, the voltage at the non-inverting input of the voltage comparator IC1 is obtained by the forward voltage drop of the diode D7, and is about 0.16V. In a static state, the collector of the infrared receiving head in the infrared receiving circuit is at a high potential of 3.4V. That is, the voltage at the inverting input terminal of the voltage comparator IC1 is 3.4V, and the voltage at the non-inverting input terminal is 0.16V (reference voltage), the voltage comparator IC1 outputs a low potential. The non-inverting input of the voltage comparator IC2 is also low. And the voltage at the inverting input terminal thereof is 0.16V. Therefore, the voltage comparator IC2 outputs a low potential, the optocoupler silicon controlled rectifier IC3 is cut off, the silicon controlled rectifier Q1 is cut off because no trigger power supply is provided, and the servo motor of the electric push rod is not powered and is in a stop state. When a power key on the remote controller is pressed, the remote controller generates a series of infrared pulse signals. After receiving the infrared pulse signal, the infrared receiving head in the infrared receiving circuit amplifies, demodulates and shapes the infrared pulse signal internally, outputs a series of negative pulse signals, and after being inverted by a voltage comparator IC1, outputs a series of positive pulse signals from the output end of a voltage comparator IC1, the positive pulse signals charge a capacitor C7 through a diode D8 and a current-limiting resistor R6, so that the voltage of the positive voltage input end of the voltage comparator IC2 rises, and when the voltage rises to be more than 0.16V. The voltage comparator IC2 outputs high potential, the light emitting diode LED lights, the optical coupling silicon controlled rectifier IC3 is conducted, the silicon controlled rectifier Q1 obtains trigger current to conduct, and the servo motor in a standby state enters a normal operation state. When the servo motor operates, the current is relatively large, and after the alternating current voltage drop generated on the sampling resistor R4 is limited by the diode D3 and the diode D4, the voltage drop on the resistor R4 is about 0.7V. This voltage drop, rectified and filtered by the voltage doubler, is applied to the positive voltage input of the voltage comparator IC2, which is greater than the reference voltage of 0.16V. Therefore, the voltage comparator IC2 outputs high potential to maintain the optocoupler silicon controlled rectifier IC3 and the silicon controlled rectifier Q1 to be continuously conducted, and the servo motor is kept to normally operate. When the table plate of the lifting table is lifted to a set height position, the sampling resistor R4 obtains the working current of the servo motor, the working current of the servo motor obtained by the sampling resistor R4 is in a low-current state, so that the self-locking state of the servo motor after being adjusted in place at present is judged, and when the working current of the servo motor is detected to be in the low-current state in the self-locking state, the servo motor can be controlled to work in a standby state through the electronic switch. After the infrared induction signal is received, the electronic switch can be triggered by the optocoupler silicon controlled rectifier circuit to enable the power supply to normally supply power, the standby power consumption is less than 1W, and the electric energy consumption is greatly saved.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, but rather is described in the foregoing embodiments and the description with reference to the principles of the invention and that various changes and modifications may be made without departing from the spirit and scope of the invention, and it is intended that all such changes and modifications fall within the scope of the invention as claimed, which is defined by the claims appended hereto and their equivalents.
Claims (8)
1. A standby control system for an electric lifting table is characterized by comprising a power supply circuit and a standby control circuit connected with the power supply circuit, wherein the standby control circuit comprises an infrared receiving circuit, an inverter circuit, an isolation current-limiting circuit, a sampling voltage-limiting circuit, a voltage-doubling rectifying circuit, a filter circuit, a voltage comparison circuit, an optical coupling silicon-controlled circuit and an electronic switch, a servo motor of an electric push rod is connected with the electronic switch, the sampling voltage-limiting circuit, the voltage-doubling rectifying circuit, the filter circuit, the voltage comparison circuit and the optical coupling silicon-controlled circuit are sequentially connected to form a closed loop, the infrared receiving circuit is connected with the inverter circuit, the inverter circuit is connected with the isolation current-limiting circuit, the isolation current-limiting circuit is connected with the filter circuit, and the infrared receiving circuit is used for receiving an infrared control signal, and the on-off of the electronic switch is controlled by the on-off of the optocoupler silicon controlled circuit, so that the standby state awakening of the servo motor of the electric push rod is realized.
2. The standby control system for the electric lifting table as claimed in claim 1, wherein the power circuit comprises a power voltage stabilizing circuit, a power rectifying circuit and a power filter circuit, the power voltage stabilizing circuit comprises a capacitor C1 and a diode D2, the power rectifying circuit comprises a rectifying diode D1, the power filter circuit comprises a capacitor C2 and a capacitor C3, a resistor R1 is connected between the positive electrode of the capacitor C1 and the negative electrode of the diode D2, the positive electrode of the rectifying diode D1 is connected with the negative electrode of the capacitor C1, the positive electrode of the capacitor C2 is connected with the negative electrode of the rectifying diode D1, the negative electrode of the capacitor C2 is grounded, the capacitor C3 is connected in parallel with two ends of the capacitor C2, the power supply outputs a DC voltage of 6V for supplying power to the standby control circuit through the power circuit, the other circuit is stepped down through the resistor R2, the capacitor C4 is filtered, and outputting 3.4V direct current voltage for supplying power to the infrared receiving circuit.
3. The standby control system for electric elevating table as claimed in claim 2, wherein the inverting circuit comprises a voltage comparator IC1, the inverting input terminal of the voltage comparator IC1 is connected to the infrared receiving circuit, the voltage input terminal of the voltage comparator IC1 is connected to the 6V dc voltage, the non-inverting input terminal of the voltage comparator IC1 is connected to the voltage comparator circuit, the infrared receiving circuit outputs a negative pulse signal after receiving the infrared pulse signal, and outputs a positive pulse signal to the isolated current limiting circuit through the voltage comparator IC1 in inverting.
4. The standby control system for electric lift tables according to claim 3, wherein said isolated current limiting circuit comprises a diode D8 and a current limiting resistor R6 connected in series to the output of said voltage comparator IC 1.
5. The standby control system for electric elevating table as claimed in claim 4, wherein the voltage comparator circuit comprises a voltage comparator IC2, the voltage input terminal of the voltage comparator IC2 is connected with 6V DC voltage, the inverting input terminal of the voltage comparator IC2 is connected with 6V DC voltage, and the non-inverting input terminal of the voltage comparator IC2 is connected with the filter circuit.
6. The standby control system for the electric lifting table as claimed in claim 5, wherein the electronic switch comprises a thyristor Q1, the optocoupler thyristor circuit comprises an optocoupler thyristor IC3 and a light emitting diode LED, the light emitting diode LED is connected with the output end of the voltage comparator IC2, the light emitting diode LED is connected with the optocoupler thyristor IC3 through a resistor R7, and the optocoupler thyristor IC3 is connected with the thyristor Q1.
7. The standby control system for electric elevating table as claimed in claim 6, wherein the sampling voltage limiting circuit comprises a sampling resistor R4 and a voltage limiting diode D3 and a voltage limiting diode D4, and both ends of the sampling resistor R4 are connected in parallel between the voltage limiting diode D3 and the voltage limiting diode D4.
8. The standby control system for electric lift tables according to claim 6, wherein said voltage doubling rectifying circuit comprises a capacitor C7 and a diode D5, and said filter circuit comprises a capacitor C5, a diode D6 and a capacitor C6 connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122692124.9U CN216014013U (en) | 2021-11-04 | 2021-11-04 | Standby control system for electric lifting table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122692124.9U CN216014013U (en) | 2021-11-04 | 2021-11-04 | Standby control system for electric lifting table |
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| CN216014013U true CN216014013U (en) | 2022-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122692124.9U Active CN216014013U (en) | 2021-11-04 | 2021-11-04 | Standby control system for electric lifting table |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115903627A (en) * | 2022-12-28 | 2023-04-04 | 长兴精石科技有限公司 | Intelligent controller and intelligent control system thereof |
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2021
- 2021-11-04 CN CN202122692124.9U patent/CN216014013U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115903627A (en) * | 2022-12-28 | 2023-04-04 | 长兴精石科技有限公司 | Intelligent controller and intelligent control system thereof |
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