Switching power supply circuit of lifting heating table

Abstract

The utility model relates to the technical field of lifting heating tables, and provides a lifting heating table switch power supply circuit, which comprises a power supply, a microprocessor, a motor control circuit, a heating control circuit and a switch control signal acquisition circuit, and is characterized in that the power supply is connected with the microprocessor, the motor control circuit, the heating control circuit and the switch control signal acquisition circuit; the microprocessor is respectively connected with the motor control circuit, the heating control circuit and the switch control signal acquisition circuit; the microprocessor adjusts on-off control of a heating assembly in the heating control circuit according to a temperature signal acquired by the on-off control signal acquisition circuit, so that flexible heating of the lifting heating table is achieved. According to the lifting heating table, the power supply, the microprocessor, the motor control circuit, the heating control circuit and the switch control signal acquisition circuit are communicated, so that the heating function of the lifting heating table can be enriched, and the control flexibility of the switch power supply circuit of the lifting heating table is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liftable heating tables, in particular to a liftable heating table switch power supply circuit. Background Art

[0002] At present, liftable heating tables are more and more widely used in the office field. The switching power supply of the internal circuit of the existing liftable heating table has a single output DC28V to directly supply the power to the motor, and at the same time uses a DC-DC step-down chip to reduce the DC28V voltage to DC5V for the system to work. The working mode of this power circuit is that when the motor generates a strong back electromotive force at the moment of power failure, the back electromotive force will generate electric sparks between the contacts of the device relay switch, causing contact erosion and DC-DC breakdown damage; when the power supply fails, it is easy to cause the liftable heating table to be unable to be used normally; at the same time, the fixed single power circuit layout method also affects the heating efficiency and effect of the liftable heating table.

[0003] Therefore, it is necessary to provide a lifting heating table switching power supply circuit. Utility Model Content

[0004] The utility model provides a lifting heating table switch power supply circuit. By connecting the power supply, microprocessor, motor control circuit, heating control circuit and switch control signal acquisition circuit, the heating function of the lifting heating table can be enriched and the control flexibility of the switch power supply circuit of the lifting heating table can be improved.

[0005] The utility model provides a lifting heating table switch power supply circuit, comprising:

[0006] Power supply, microprocessor, motor control circuit, heating control circuit and switch control signal acquisition circuit, the power supply is connected to the microprocessor, motor control circuit, heating control circuit and switch control signal acquisition circuit; the microprocessor is respectively connected to the motor control circuit, heating control circuit and switch control signal acquisition circuit; the microprocessor adjusts the switch control of the heating component in the heating control circuit according to the temperature signal obtained by the switch control signal acquisition circuit to achieve flexible heating of the lifting heating table.

[0007] Furthermore, the power supply includes a first power supply and a second power supply; the first power supply is 5V DC, and the second power supply is 24V DC; the first power supply is connected to the microprocessor, the heating control circuit and the switch control signal acquisition circuit; the second power supply is connected to the motor control circuit.

[0008] Furthermore, the motor control circuit is used to control the operation of the heating table lifting motor to achieve the lifting function of the heating table.

[0009] Furthermore, the heating control circuit is used to control the operation of the heating components and display panel of the heating table; the heating components include an electric ceramic stove, an induction cooker and a warming component.

[0010] Furthermore, the heating control circuit includes several control switches corresponding to the heating components; the control switches are used to control the connection and disconnection of the heating components, as well as the connection and disconnection of a single ceramic stove, a single induction cooker or a single warming component, so as to start or stop the heating components.

[0011] Furthermore, the switch control signal acquisition circuit includes:

[0012] A temperature sensor is configured on the liftable heating table and is connected to a microprocessor; the temperature sensor is used to collect the temperature generated by the heating component, generate a voltage signal according to the temperature, and send the voltage signal to the microprocessor.

[0013] Furthermore, the microprocessor receives the voltage signal and compares the voltage signal with a set voltage threshold. If the voltage signal is greater than the set voltage threshold, a first control command is generated. According to the first control command, the control switch of the corresponding ceramic stove, induction cooker or warming component in the heating control circuit is controlled to be disconnected, so that the ceramic stove, induction cooker or warming component stops working.

[0014] Furthermore, the heating control circuit also includes a power control component, which is used to set corresponding heating control buttons according to the user's different heating temperature requirements, and configure corresponding heating combination working components composed of different electric ceramic stoves, induction cookers and warming components according to the heating control buttons; multiple second control commands are set in the microprocessor, and the control switch is controlled to be turned on or off according to the second control commands, so that different heating combination working components can work to achieve different power control.

[0015] Furthermore, it also includes a fault detection circuit; the fault detection circuit includes a signal sampling subcircuit, a comparison subcircuit and a fault display subcircuit; the signal sampling subcircuit is connected to the comparison subcircuit, and the comparison subcircuit is connected to the fault display subcircuit;

[0016] The signal sampling subcircuit includes a plurality of sampling input and output terminal groups; the sampling input and output terminal groups are configured on the electric ceramic stove, the electromagnetic stove and the warming component, and are used to sample and obtain the voltage signal corresponding to the temperature generated by the electric ceramic stove, the electromagnetic stove and the warming component;

[0017] The comparison subcircuit includes a plurality of comparison signal input terminals, a plurality of reference signal input terminals and a comparison signal output terminal;

[0018] The sampling input and output terminal group is connected to the comparison signal input terminal, the reference signal input terminal is used to receive the reference voltage signal, and the comparison signal output terminal is used to output the voltage comparison signal;

[0019] The fault display subcircuit is used to display fault information of the electric ceramic stove, induction cooker and heating component through the display panel according to the voltage comparison signal.

[0020] Furthermore, it also includes a power failure control circuit; the power failure control circuit is connected to the microprocessor and the power supply; the power failure control circuit includes a fault signal acquisition device, an energy storage capacitor, a DC converter and a first control switch;

[0021] The fault signal acquisition device is connected to the power supply and the processor; the energy storage capacitor is connected to the DC converter, the DC converter is connected to the first control switch, and the first control switch is connected to the output port of the power supply;

[0022] When the power supply fails, the microprocessor generates a third control command based on the fault signal collected by the fault signal acquisition device, and according to the third control command, turns the first control switch to the open state to connect the energy storage capacitor, the DC converter and the output port of the power supply, so that the electrical energy in the energy storage capacitor is extracted by the DC converter to provide backup power for the lifting heating table.

[0023] Compared with the prior art, the present invention has the following advantages and beneficial effects: by connecting the power supply, microprocessor, motor control circuit, heating control circuit and switch control signal acquisition circuit, the heating function of the lifting heating table can be enriched and the control flexibility of the switch power supply circuit of the lifting heating table can be improved.

[0024] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be achieved and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0025] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 This is a schematic diagram of the switch power supply circuit structure of the lifting heating table;

[0028] Figure 2 Schematic diagram of the power supply connection structure;

[0029] Figure 3 This is a schematic diagram of the fault detection circuit structure. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0031] The utility model provides a lifting heating table switch power supply circuit, such as Figure 1 Shown, including:

[0032] Power supply, microprocessor, motor control circuit, heating control circuit and switch control signal acquisition circuit, the power supply is connected to the microprocessor, motor control circuit, heating control circuit and switch control signal acquisition circuit; the microprocessor is respectively connected to the motor control circuit, heating control circuit and switch control signal acquisition circuit; the microprocessor adjusts the switch control of the heating component in the heating control circuit according to the temperature signal obtained by the switch control signal acquisition circuit to achieve flexible heating of the lifting heating table.

[0033] The working principle of the above technical solution is: in order to realize the switching power supply circuit of the lifting heating table, the utility model proposes a power supply, a microprocessor, a motor control circuit, a heating control circuit and a switch control signal acquisition circuit. The power supply is connected to the microprocessor, the motor control circuit, the heating control circuit and the switch control signal acquisition circuit; the microprocessor is respectively connected to the motor control circuit, the heating control circuit and the switch control signal acquisition circuit; the microprocessor adjusts the switch control of the heating component in the heating control circuit according to the temperature signal obtained by the switch control signal acquisition circuit to realize flexible heating of the lifting heating table.

[0034] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, by connecting the power supply, microprocessor, motor control circuit, heating control circuit and switch control signal acquisition circuit, the heating function of the lifting heating table can be enriched and the control flexibility of the switching power supply circuit of the lifting heating table can be improved.

[0035] In one embodiment, Figure 2 As shown, the power supply includes a first power supply and a second power supply; the first power supply is 5V DC, and the second power supply is 24V DC; the first power supply is connected to the microprocessor, the heating control circuit and the switch control signal acquisition circuit; the second power supply is connected to the motor control circuit.

[0036] The working principle of the above technical solution is: the power supply in the utility model includes a first power supply and a second power supply; the first power supply is 5V DC, and the second power supply is 24V DC; the first power supply is connected to the microprocessor, the heating control circuit and the switch control signal acquisition circuit; the second power supply is connected to the motor control circuit.

[0037] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, by distinguishing 5V DC and 24V DC, independent channel power supply can be achieved, which can not only increase circuit stability but also reduce energy consumption.

[0038] In one embodiment, the motor control circuit is used to control the operation of the heating table lifting motor to achieve the lifting function of the heating table.

[0039] The working principle of the above technical solution is: the utility model sets a motor control circuit to control the operation of the heating table lifting motor to realize the lifting function of the heating table.

[0040] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, the operation of the heating table lifting motor can be controlled by setting a motor control circuit, thereby realizing the lifting function of the heating table.

[0041] In one embodiment, the heating control circuit is used to control the operation of the heating components and display panel of the heating table; the heating components include an electric ceramic stove, an induction cooker and a warming component.

[0042] The working principle of the above technical solution is: the utility model controls the operation of the heating components and display panel of the heating table through a heating control circuit; the heating components include an electric ceramic stove, an induction cooker and a warming component.

[0043] The beneficial effects of the above technical solution are: by adopting the solution provided in this embodiment, the heating components and display panel of the heating table are controlled by the heating control circuit, providing a basis for realizing the functions of the heating table.

[0044] In one embodiment, the heating control circuit includes several control switches corresponding to the heating components; the control switches are used to control the connection and disconnection of the heating components, as well as the connection and disconnection of a single ceramic stove, a single induction cooker or a single warming component, so as to start or stop the heating components.

[0045] The working principle of the above technical solution is: in order to ensure the operation of the heating control circuit, the utility model is provided with several control switches corresponding to the heating components; the connection and disconnection of the heating components are controlled by the control switches, as well as the connection and disconnection of a single electric ceramic stove, a single induction cooker or a single warming component, so as to realize the start or stop of the heating components.

[0046] The beneficial effect of the above technical solution is: by adopting the solution provided by this embodiment, by setting a number of control switches corresponding to the heating components, the operation of the heating control circuit can be guaranteed.

[0047] In one embodiment, the switch control signal acquisition circuit includes:

[0048] A temperature sensor is configured on the liftable heating table and is connected to a microprocessor; the temperature sensor is used to collect the temperature generated by the heating component, generate a voltage signal according to the temperature, and send the voltage signal to the microprocessor.

[0049] The working principle of the above technical solution is: in order to realize the collection of the temperature generated by the heating component, the utility model sets a switch control signal acquisition circuit, through a temperature sensor configured on the lifting heating table, the temperature sensor is connected to the microprocessor; the temperature sensor is used to collect the temperature generated by the heating component, and generate a voltage signal according to the temperature, and send the voltage signal to the microprocessor.

[0050] The beneficial effect of the above technical solution is: by adopting the solution provided by this embodiment, by setting a switch control signal acquisition circuit, the temperature generated by the heating component can be collected, and subsequent processing can be performed based on the temperature.

[0051] In one embodiment, a microprocessor receives a voltage signal and compares the voltage signal with a set voltage threshold. If the voltage signal is greater than the set voltage threshold, a first control command is generated. Based on the first control command, a control switch of a corresponding ceramic stove, induction cooker, or warming component in a heating control circuit is turned off, thereby stopping the ceramic stove, induction cooker, or warming component from operating.

[0052] The working principle of the above technical solution is as follows: in order to achieve individual and flexible control of the electric ceramic stove, induction cooker or warming component, so that different electric ceramic stoves, induction cookers or warming components can operate individually or in combination, the present invention uses a microprocessor to receive a temperature signal and compare the temperature signal with a set temperature threshold. If the temperature signal is greater than the set temperature threshold, a first control command is generated; according to the first control command, the control switch of the corresponding electric ceramic stove, induction cooker or warming component in the heating control circuit is controlled to be disconnected, so that the electric ceramic stove, induction cooker or warming component stops working.

[0053] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, by disconnecting the control switch of the electric ceramic stove, induction cooker or heating component to stop the electric ceramic stove, induction cooker or heating component, flexible control of the lifting heater can be achieved to achieve different heating temperatures.

[0054] In one embodiment, the heating control circuit also includes a power control component, which is used to set corresponding heating control buttons according to different heating temperature requirements of the user, and configure corresponding heating combination working components composed of different electric ceramic stoves, induction cookers and warming components according to the heating control buttons; multiple second control commands are set in the microprocessor, and the control switch is controlled to be turned on or off according to the second control commands, so that different heating combination working components can work to achieve different power control.

[0055] The working principle of the above technical solution is as follows: the heating control circuit also includes a power control component, which is used to set corresponding heating control buttons according to the user's different heating temperature requirements, and configure corresponding heating combination working components composed of different electric ceramic stoves, induction cookers and warming components according to the heating control buttons; multiple second control commands are set in the microprocessor, and according to the second control commands, the control switch is controlled to be turned on or off, so that different heating combination working components can work to achieve different power control.

[0056] The beneficial effects of the above technical solution are: by adopting the solution provided in this embodiment, by setting a power control component, the different heating needs of users can be met, and different power operations of the lifting heater can be achieved, thereby improving the efficiency of the lifting heater.

[0057] In one embodiment, Figure 3 As shown, it also includes a fault detection circuit; the fault detection circuit includes a signal sampling subcircuit, a comparison subcircuit and a fault display subcircuit; the signal sampling subcircuit is connected to the comparison subcircuit, and the comparison subcircuit is connected to the fault display subcircuit;

[0058] The signal sampling subcircuit includes a plurality of sampling input and output terminal groups; the sampling input and output terminal groups are configured on the electric ceramic stove, the electromagnetic stove and the warming component, and are used to sample and obtain the voltage signal corresponding to the temperature generated by the electric ceramic stove, the electromagnetic stove and the warming component;

[0059] The comparison subcircuit includes a plurality of comparison signal input terminals, a plurality of reference signal input terminals and a comparison signal output terminal;

[0060] The sampling input and output terminal group is connected to the comparison signal input terminal, the reference signal input terminal is used to receive the reference voltage signal, and the comparison signal output terminal is used to output the voltage comparison signal;

[0061] The fault display subcircuit is used to display fault information of the electric ceramic stove, induction cooker and heating component through the display panel according to the voltage comparison signal.

[0062] The working principle of the above technical solution is as follows: To ensure the normal, continuous and efficient operation of multiple ceramic stoves, induction cookers, and warming components, the present invention proposes a fault detection circuit for timely detecting the operating status of the ceramic stoves, induction cookers, and warming components to detect faults. The fault detection circuit of the present invention includes a signal sampling subcircuit, a comparison subcircuit, and a fault display subcircuit. The signal sampling subcircuit is connected to the comparison subcircuit, which is in turn connected to the fault display subcircuit. The signal sampling subcircuit includes multiple sampling input and output terminal groups. The sampling input and output terminal groups are configured on the ceramic stoves, induction cookers, and warming components and are used to sample and obtain voltage signals corresponding to the temperatures generated by the ceramic stoves, induction cookers, and warming components. The comparison subcircuit includes multiple comparison signal input terminals, multiple reference signal input terminals, and a comparison signal output terminal. The sampling input and output terminal groups are connected to the comparison signal input terminals, the reference signal input terminals are used to receive reference voltage signals, and the comparison signal output terminals are used to output voltage comparison signals. The fault display subcircuit is used to display fault information of the ceramic stoves, induction cookers, and warming components on a display panel based on the voltage comparison signals.

[0063] The beneficial effect of the above technical solution is: by adopting the solution provided by this embodiment and setting a fault detection circuit, the normal, continuous and efficient operation of multiple electric ceramic stoves, induction cookers and warming components can be ensured.

[0064] In one embodiment, the invention further includes a power failure control circuit; the power failure control circuit is connected to the microprocessor and the power supply; the power failure control circuit includes a fault signal acquisition device, an energy storage capacitor, a DC converter and a first control switch;

[0065] The fault signal acquisition device is connected to the power supply and the processor; the energy storage capacitor is connected to the DC converter, the DC converter is connected to the first control switch, and the first control switch is connected to the output port of the power supply;

[0066] When the power supply fails, the microprocessor generates a third control command based on the fault signal collected by the fault signal acquisition device, and according to the third control command, turns the first control switch to the open state to connect the energy storage capacitor, the DC converter and the output port of the power supply, so that the electrical energy in the energy storage capacitor is extracted by the DC converter to provide backup power for the lifting heating table.

[0067] The working principle of the above technical solution is: in order to ensure that the normal operation of the heating table can be effectively ensured when the power supply fails, the utility model proposes to set up a power failure control circuit; the power failure control circuit is connected to the microprocessor and the power supply; the power failure control circuit includes a fault signal acquisition device, an energy storage capacitor, a DC converter and a first control switch; the fault signal acquisition device is connected to the power supply and the processor; the energy storage capacitor is connected to the DC converter, the DC converter is connected to the first control switch, and the first control switch is connected to the output port of the power supply; when the power supply fails, the microprocessor generates a third control command according to the fault signal collected and obtained by the fault signal acquisition device, and according to the third control command, turns the first control switch to the open state to connect the energy storage capacitor, the DC converter and the output port of the power supply, so that the electric energy in the energy storage capacitor is extracted by the DC converter to provide backup power for the lifting heating table.

[0068] The beneficial effects of the above technical solution are: by adopting the solution provided in this embodiment, by setting up a power failure control circuit, it can be ensured that when a power failure occurs, the normal operation of the heating table can be effectively ensured, providing a buffer for subsequent maintenance and processing of the heating table, and improving the utilization efficiency and intelligence of the heating table.

[0069] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A lifting heating table switch power supply circuit, characterized in that, include: Power supply, microprocessor, motor control circuit, heating control circuit and switch control signal acquisition circuit, the power supply is connected to the microprocessor, motor control circuit, heating control circuit and switch control signal acquisition circuit; the microprocessor is respectively connected to the motor control circuit, heating control circuit and switch control signal acquisition circuit; the microprocessor adjusts the switch control of the heating component in the heating control circuit according to the temperature signal obtained by the switch control signal acquisition circuit to achieve flexible heating of the lifting heating table.

2. The switch power supply circuit of a lifting heating table according to claim 1, characterized in that: The power supply includes a first power supply and a second power supply; the first power supply is 5V DC and the second power supply is 24V DC; the first power supply is connected to the microprocessor, the heating control circuit and the switch control signal acquisition circuit; the second power supply is connected to the motor control circuit.

3. The switch power supply circuit of a lifting heating table according to claim 1, characterized in that: The motor control circuit is used to control the operation of the heating table lifting motor to realize the lifting function of the heating table.

4. The switch power supply circuit of a lifting heating table according to claim 1, characterized in that: The heating control circuit is used to control the operation of the heating components and display panel of the heating table; the heating components include an electric ceramic stove, an induction cooker and a warming component.

5. The switch power supply circuit of a lifting heating table according to claim 1, characterized in that: The heating control circuit includes several control switches corresponding to the heating components; the control switches are used to control the connection and disconnection of the heating components, as well as the connection and disconnection of a single ceramic stove, a single induction cooker or a single warming component, so as to start or stop the heating components.

6. The switch power supply circuit of a lifting heating table according to claim 1, characterized in that: The switch control signal acquisition circuit includes: A temperature sensor is configured on the liftable heating table and is connected to a microprocessor; the temperature sensor is used to collect the temperature generated by the heating component, generate a voltage signal according to the temperature, and send the voltage signal to the microprocessor.

7. The switch power supply circuit of a lifting heating table according to claim 6, characterized in that: The microprocessor receives the voltage signal and compares it with a set voltage threshold. If the voltage signal is greater than the set voltage threshold, a first control command is generated. Based on the first control command, a control switch of the corresponding ceramic stove, induction cooker, or warming component in the heating control circuit is turned off, thereby stopping the ceramic stove, induction cooker, or warming component from operating.

8. The switch power supply circuit of a lifting heating table according to claim 1, characterized in that: The heating control circuit also includes a power control component, which is used to set corresponding heating control buttons according to the user's different heating temperature requirements, and configure corresponding heating combination working components composed of different electric ceramic stoves, induction cookers and warming components according to the heating control buttons; multiple second control commands are set in the microprocessor, and the control switch is turned on or off according to the second control commands, so that different heating combination working components can work to achieve different power controls.

9. The switch power supply circuit of a lifting heating table according to claim 1, characterized in that: It also includes a fault detection circuit; the fault detection circuit includes a signal sampling subcircuit, a comparison subcircuit and a fault display subcircuit; the signal sampling subcircuit is connected to the comparison subcircuit, and the comparison subcircuit is connected to the fault display subcircuit; The signal sampling subcircuit includes a plurality of sampling input and output terminal groups; the sampling input and output terminal groups are configured on the electric ceramic stove, the electromagnetic stove and the warming component, and are used to sample and obtain the voltage signal corresponding to the temperature generated by the electric ceramic stove, the electromagnetic stove and the warming component; The comparison subcircuit includes a plurality of comparison signal input terminals, a plurality of reference signal input terminals and a comparison signal output terminal; The sampling input and output terminal group is connected to the comparison signal input terminal, the reference signal input terminal is used to receive the reference voltage signal, and the comparison signal output terminal is used to output the voltage comparison signal; The fault display subcircuit is used to display fault information of the electric ceramic stove, induction cooker and heating component through the display panel according to the voltage comparison signal.

10. The switch power supply circuit of a lifting heating table according to claim 1, characterized in that: It also includes a power failure control circuit; the power failure control circuit is connected to the microprocessor and the power supply; the power failure control circuit includes a fault signal acquisition device, an energy storage capacitor, a DC converter and a first control switch; The fault signal acquisition device is connected to the power supply and the processor; the energy storage capacitor is connected to the DC converter, the DC converter is connected to the first control switch, and the first control switch is connected to the output port of the power supply; When the power supply fails, the microprocessor generates a third control command based on the fault signal collected by the fault signal acquisition device, and according to the third control command, turns the first control switch to the open state to connect the energy storage capacitor, the DC converter and the output port of the power supply, so that the electrical energy in the energy storage capacitor is extracted by the DC converter to provide backup power for the lifting heating table.

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