CN116546796A - Single-phase multipath power controller - Google Patents
Single-phase multipath power controller Download PDFInfo
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- CN116546796A CN116546796A CN202310723257.9A CN202310723257A CN116546796A CN 116546796 A CN116546796 A CN 116546796A CN 202310723257 A CN202310723257 A CN 202310723257A CN 116546796 A CN116546796 A CN 116546796A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
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- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
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- H—ELECTRICITY
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
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Abstract
The application discloses single-phase multichannel power controller to solve multichannel load power control system and lead to being difficult to realize centralized control and stable high-efficient work's problem because of the heat dissipation is limited. The single-phase multipath power controller comprises a main control board and multipath power control components which are arranged in the same radiating chassis; the left side and the right side of the radiating chassis are respectively provided with a radiating frame, a radiating fan is arranged in the bottom area of the radiating chassis, and a circuit board mounting plate with a U-shaped structure is fixedly arranged above the radiating fan and close to the inner wall of the radiating frame; the main control board is fixed on the bottom surface of the U-shaped structure of the circuit board mounting plate; the main control board is provided with a plurality of sensor signal acquisition ports, a plurality of control signal output ports and the same power interface. Through unique heat radiation structure design and space layout, the multi-channel heat source can perform concentrated heat radiation, the heat radiation performance of the power controller is greatly improved, and the power controller is enabled to run more stably.
Description
Technical Field
The application relates to the technical field of power control, in particular to a single-phase multipath power controller.
Background
The current single-phase power control technology is widely applied to the adjustment of voltage, current and power in various fields of industry due to high precision and reliability, and is suitable for the power control of resistive load, inductive load and gas load.
The single-phase power controller structure generally comprises a mounting plate, a heat dissipation frame, key components (such as a thyristor, etc.), a control circuit board and a shell (comprising a touch screen). The single set of equipment of the main stream single-phase power controller only adopts one-path control, however, because of the existence of multiple paths of loads, the load power of some equipment systems needs to be controlled respectively. For example, because of large area, a plurality of sets of heating elements are generally used in a single heating furnace tank, and each set of heating elements corresponds to one set of power controller for controlling load power, so that the purpose of controlling temperature is achieved. However, for the same heating furnace, the adoption of multiple sets of control equipment can lead to the phenomena of complex circuit laying and installation, low integration degree, complex operation, high cost and low efficiency.
The single-phase power controller is a key device for temperature control in a heating system, a transistor can generate a large amount of heat energy when the controller works, the controller integrated with a plurality of transistors can generate larger heat energy, if the heat dissipation effect is low, the controller is too high in temperature, on one hand, the controller can be caused to start an overheat protection function for a long time to perform self-locking, so that the controller cannot work normally, and on the other hand, the long-term high temperature can cause the reduction of the service life of components.
Therefore, for highly integrated multi-path power controllers, whether efficient heat dissipation is a core issue for multi-path power controllers.
Disclosure of Invention
The application provides a single-phase multichannel power controller to solve multichannel load power control system and lead to being difficult to realize centralized control and stable high-efficient work's problem because of the heat dissipation is limited.
In order to achieve the above object, the present application provides the following technical solutions:
a single-phase multipath power controller comprises a main control board, an A-path power control component, a B-path power control component, a C-path power control component and a D-path power control component which are arranged in the same radiating chassis;
the left side and the right side of the radiating chassis are respectively provided with a radiating frame, a radiating fan is arranged in the bottom area of the radiating chassis, and a circuit board mounting plate with a U-shaped structure is fixedly arranged above the radiating fan and close to the inner wall of the radiating frame;
the main control board is fixed on the bottom surface of the U-shaped structure of the circuit board mounting plate; the main control board is provided with a multi-path sensor signal acquisition port, a multi-path control signal output port and the same power interface; the multichannel sensor signal acquisition port and the multichannel control signal output port support sensor signal acquisition and control signal output of the A-path power control component, the B-path power control component, the C-path power control component and the D-path power control component which are independent;
the A-path power control assembly and the D-path power control assembly are symmetrically arranged in the radiating chassis and are respectively fixed on the U-shaped structure of the circuit board mounting plate and the corresponding side face of the radiating frame;
the B-path power control component and the C-path power control component are symmetrically arranged in the area between the A-path power control component and the D-path power control component and are respectively and parallelly close to the A-path power control component and the D-path power control component; the B-path power control component and the C-path power control component are respectively fixed on the bottom surface of the U-shaped structure of the main control board or the circuit board mounting board; the circuit main bodies of the power control component B and the power control component C are integrated on the main control board;
the A-path power control assembly, the B-path power control assembly, the C-path power control assembly and the D-path power control assembly are respectively provided with an independent load input end and an independent load output end, and each group of the power control assemblies is provided with an insulating partition board for isolation.
Optionally, the a-path power control component and the D-path power control component each include a single-path circuit board, a thyristor, an inductance coil, an inductance bracket, an L-shaped bracket and a fuse; the single-circuit board is fixed on the circuit board mounting plate, and the thyristor passes through a reserved hole site of the circuit board mounting plate and is finally fixed on the heat dissipation frame; after passing through the inductance coil, one end of the inductance bracket is fixed on the circuit board mounting plate, the other end of the inductance bracket is fixed on the single-path circuit board, and the hole at the middle turning position is connected with the wiring port of the thyristor; the L-shaped bracket is fixed on the circuit board mounting plate, one end of the fuse is fixed on the L-shaped bracket, and the other end of the fuse is connected with the thyristor wiring port.
Optionally, the B-path power control component and the C-path power control component each include a fixing plate, an L-shaped bracket, a fuse, an inductance bracket, an inductance coil and a thyristor; the fixing plate is vertically arranged and fixedly connected with the bottom surface of the U-shaped structure of the circuit board mounting plate; after the inductance bracket passes through the inductance coil, one end of the inductance bracket is fixed on the fixed plate, the other end of the inductance bracket is fixed on the main control board, and the hole at the middle turning position is connected with the wiring port of the thyristor; the L-shaped bracket is fixed on the fixed plate, one end of the fuse is fixed on the L-shaped bracket, and the other end of the fuse is connected with the wiring port of the thyristor.
Optionally, the fixing plates of the power control component B and the power control component C are respectively and fixedly connected with the circuit board mounting plate through four hexagonal studs.
Optionally, the bottoms of all thyristors are coated with thermally conductive silicone.
Optionally, the bottom surface of the heat dissipation case is an installation bottom plate, the bottom ends of the heat dissipation frames at two sides are respectively and fixedly connected with the installation bottom plate, and a shell connected with the edges of the heat dissipation frames at two sides in a closed manner is fixedly installed above the frame of the heat dissipation fan.
Optionally, a touch screen is arranged on the surface of the heat dissipation case, and the touch screen is electrically connected with the main control board.
Optionally, the sensor signal acquisition port includes a PT100 signal acquisition port and an analog signal acquisition port.
Optionally, the main control board is further provided with a network port for communicating with an external control device.
Optionally, a temperature sensor is further arranged in the heat dissipation case, and the main control board controls the start/stop of the heat dissipation fan according to the temperature monitored in real time.
The multi-path load control system is concentrated in the same heat radiating device and is reasonably distributed, and the multi-path circuit system has relatively independent space for centralized heat radiation during working, so that the running efficiency of equipment is improved.
The single-phase multipath power controller provided by the application not only has the advantages of adjustable load voltage, accurate control and the like inherent to the power controller, but also has the following obvious advantages compared with a conventional single-phase multipath controller because four paths of relatively independent software and hardware systems and special radiators are used in the controller:
1. the unique heat dissipation structure design and space layout are adopted, so that four paths of heat sources can perform concentrated heat dissipation, the heat dissipation performance of the power controller is greatly improved, and the power controller operates more stably;
2. the multi-path loads are controlled in a centralized way through the main control circuit, the controller is powered by a single power supply (the four-path controller integrally adopts a power supply), so that the equipment installation efficiency, the equipment operation efficiency, energy conservation and consumption reduction are effectively improved;
3. the multi-path power controller can collect PT100 temperature signals and 4-20mA analog current signals, and provides various selection ways for users;
4. two modes of operation may be supported:
in the same power control mode, when the touch screen is switched to the same power mode, the main control panel can control four paths of load output power simultaneously, and the overall stability and reliability of the system are higher.
In the differential power control mode, when the touch screen is switched to the differential power mode, the main control panel can respectively control the output power of four paths of loads, so that the accurate control of temperatures at different positions is achieved.
Drawings
For a more visual description of the prior art and the present application, exemplary drawings are provided below, some of which are omitted for the purpose of emphasis and others. It should be understood that the specific shape and configuration shown in the drawings should not be considered in general as limiting upon the practice of the present application; for example, based on the technical concepts and exemplary drawings disclosed herein, those skilled in the art have the ability to easily make conventional adjustments or further optimizations for the add/subtract/assign division, specific shapes, positional relationships, connection modes, dimensional scaling relationships, etc. of certain units (components).
Fig. 1 is an external structural schematic diagram of a single-phase four-way power device according to an embodiment of the present application.
Fig. 2 is a schematic diagram of an internal structure of a single-phase four-way power controller according to an embodiment of the present application.
Fig. 3 is an enlarged schematic diagram of a local structure of an a-path power controller according to an embodiment of the present application.
Fig. 4 is a schematic view of a fixing structure of a B-way fixing plate according to an embodiment of the present application.
Fig. 5 is a schematic diagram of load input and output interfaces according to an embodiment of the present application.
Fig. 6 is a schematic diagram of a circuit system topology in one embodiment of the present application.
Reference numerals illustrate:
1. a mounting base plate; 2. a heat radiation fan; 3. a housing; 4. a touch screen; 5. a heat dissipation frame; 6. a circuit board mounting board; 7. an A-path circuit board; 8. a path A thyristor; 9. an A-path inductance coil; 10. the A path inductance bracket; 11. an A path L-shaped bracket; 12. a path A fuse; 13. a B path fixing plate; 14. a B path L-shaped bracket; 15. a B-way fuse; 16. the B path inductance bracket; 17. a B-path inductance coil; 18. a B-path thyristor; 19. a main control board; 20. a C-way thyristor; 21. a C-path inductance coil; 22. a C-path inductance bracket; 23. a C-path L-shaped bracket; 24. a C-way fuse; 25. a C path fixing plate; 26. a D path L-shaped bracket; 27. a D-path fuse; 28. d, a road pole bracket; 29. a D path inductance coil; 30. a D-path thyristor; 31. a D-path circuit board; 32. PT100 signal acquisition end; 33. a power interface; 34. a signal output terminal; 35. analog quantity signal acquisition end; 36. a net opening; 37. a Z-shaped bracket; 38. a stud; 39. a partition board.
Detailed Description
The present application is further described in detail below with reference to the attached drawings.
In the description of the present application: unless otherwise indicated, the meaning of "a plurality" is two or more. The terms "first," "second," "third," and the like, as may be used herein, are intended to distinguish between objects that are referenced without a special meaning in terms of technical connotation (e.g., should not be construed as emphasis on degree or order, etc.). The expressions "comprising", "including", "having", etc. also mean "not limited to" (certain units, components, materials, steps, etc.).
The terms such as "upper", "lower", "left", "right", "middle", and the like, as referred to in this application, are generally used for convenience in visual understanding with reference to the drawings, and are not intended to be an absolute limitation of the positional relationship in actual products. Such changes in relative positional relationship are considered to be within the scope of the present description without departing from the technical concepts disclosed herein.
Brief description of the basic principles related to this application:
the basic principle of the power controller is to control the thyristor module in the main loop by inputting control signals to change the on and off of the voltage in the main loop, thereby achieving the purpose of regulating the voltage or the power. The power controller can be further divided into a voltage regulator and a power regulator.
The power controller adopting the phase control mode is called a voltage regulator, can conveniently regulate the effective value of voltage, can be used for electric furnace temperature control, lamplight regulation, voltage regulation, speed regulation and the like, and can also be used for regulating the primary side voltage of a transformer to replace a voltage regulating transformer with low efficiency.
The power controller adopting the zero control mode is called a power regulator and also called a cycle controller. The alternating current power supply device controls the frequency of alternating current voltage, controls the power of a load by controlling the frequency on-off ratio of load voltage, and is mostly used for a heater load with large inertia. By adopting the control, the temperature control is realized, and the higher harmonic pollution to the power grid caused by phase control is eliminated, but the control accuracy is reduced.
In one embodiment, the method is applied to centralized control of heating equipment required in a wide range of temperature control occasions. The single-phase four-way power controller provided by the embodiment is composed of four independent thyristor modules, the controller can monitor the working conditions of four loads at the same time, and the voltage or the power of the four loads can be adjusted according to the working conditions of the loads. The working principle of the controller is that the microprocessor monitors signals such as temperature, analog (voltage or current) and the like fed back by the temperature sensor, and utilizes the embedded PID algorithm of the processor to realize the adjustment of the output voltage or power of the load, thereby ensuring the safe and reliable operation of the load equipment under the set condition. The four-way thyristor control circuit can respectively and independently operate and do not interfere with each other.
The single-phase four-way power controller provided by the embodiment has the functions of OLED liquid crystal display and key input; the OLED liquid crystal screen can display information such as power supply voltage, load working voltage, current and power of the controller, input analog signals and the like in real time. By key operation, the operation mode of the controller, the content of the liquid crystal display, and the like can be adjusted. The controller can communicate with devices such as a PC and a PLC through bus interfaces (network ports 36) such as serial ports and the like, so that good human-computer interaction experience is realized. The temperature resistor is arranged in the controller, the working problem inside the controller is monitored in real time, and after the temperature reaches a set value, the cooling fan is started to perform forced air cooling, so that the cooling capacity is increased, and the controller is ensured to stably run.
Specifically, as shown in fig. 1 and 2:
fig. 1 is a schematic diagram of an external structure of a single-phase four-way power controller, wherein an internal circuit board and components are mounted inside a heat dissipation frame, two groups of heat dissipation fans 2 are mounted in front of the heat dissipation frame, a touch screen 4 with the circuit board is mounted above a housing 3 while the interior is connected with the circuit board, the housing 3 is mounted above a heat dissipation frame 5, and finally a mounting bottom plate 1 is mounted at the bottom of the heat dissipation frame, so that the integral mounting of the single-phase four-way power controller is completed.
Fig. 2 is a schematic diagram of the internal structure of the single-phase four-way power controller, wherein the circuit board mounting board 6 is fixed with the heat dissipation frame, and the a-way circuit board 7, the main control board 19 and the D-way circuit board 31 are respectively fixed on the circuit board mounting board 6.
The A-path thyristors 8, the B-path thyristors 18, the C-path thyristors 20 and the D-path thyristors 30 respectively pass through reserved hole sites of the circuit board mounting plate 6 and are finally fixed on the heat dissipation frame 5, and heat conduction silicone grease is smeared at the bottoms of the thyristors before the fixing.
The heat dissipation frame 5 can be made of aluminum profiles. The heat generated by the four-way thyristor during operation is transferred to the aluminum profile heat dissipation frame, and the aluminum profile heat dissipation frame is provided with heat dissipation fins. Meanwhile, if the temperature of the circuit board reaches a threshold value, the two groups of forced air cooling radiating fans are automatically started, so that the radiating effect of the maximum effect is exerted; when the temperature of the circuit board is reduced below the threshold value, the cooling fan is automatically turned off, so that the cooling effect is ensured and the power consumption is reduced.
The inductance support is in non-contact with the inductance coil, and is made of conductive materials, such as red copper.
After passing through the A-path inductor, one end of the A-path inductor bracket 10 is fixed on the circuit board mounting plate 6, the other end of the A-path inductor bracket is fixed on the A-path circuit board 7, and the hole at the middle turning position is connected with the wiring port of the A-path thyristor. As shown in fig. 3, the a-path inductance bracket 10 has a plurality of bends, one end of the a-path inductance bracket 10 is a U2A interface (load output end of a-path), the middle bend is connected with the a-path thyristor 8, the other end is connected with the a-path circuit board 7, and other three paths are similar in structure.
After the D-path inductor bracket passes through the D-path inductor, one end of the D-path inductor bracket is fixed on the circuit board mounting plate 6, the other end of the D-path inductor bracket is fixed on the D-path circuit board 31, and the hole at the middle turning position is connected with the wiring port of the D-path thyristor.
The A-path L-shaped bracket 11 is fixed on the circuit board mounting plate 6, one end of the A-path fuse 12 is fixed on the A-path L-shaped bracket 11, and the other end is connected with the wiring port of the A-path thyristor. As shown in fig. 3, the other end of the a-way fuse is connected to the thyristor through a Z-shaped bracket 37, and the end of the Z-shaped bracket is connected to the a-way circuit board, and the other three ways are similar in structure.
The D-way L-shaped bracket 26 is fixed on the circuit board mounting plate 6, one end of the D-way fuse 27 is fixed on the D-way L-shaped bracket 26, and the other end is connected with the wiring port of the D-way thyristor.
The B-path fixing plate 13 and the C-path fixing plate 25 are respectively fixed with the circuit board mounting plate 6 through four hexagonal studs. Taking the path B as an example, as shown in fig. 4, four studs 38 pass through the path a circuit board and the circuit board mounting board and then are screwed into the heat dissipation frame to fix the path B fixing board. The fixing structures of the C path and the B path are symmetrically arranged.
After passing through the B-path inductor, one end of the B-path inductor bracket 16 is fixed on the B-path fixed plate 13, the other end is fixed on the main control plate 19, and the hole at the middle turning position is connected with the wiring port of the B-path thyristor.
After the C-channel inductor support 22 passes through the C-channel inductor, one end of the C-channel inductor support is fixed on the C-channel fixing plate 25, the other end of the C-channel inductor support is fixed on the main control board 19, and the hole at the middle turning position is connected with the wiring port of the C-channel thyristor.
The B-way L-shaped bracket 14 is fixed on the B-way fixing plate 13, one end of the B-way fuse 15 is fixed on the B-way L-shaped bracket 14, and the other end is connected with the wiring port of the B-way thyristor.
The C-way L-shaped bracket 23 is fixed on the C-way fixing plate 25, one end of the C-way fuse 24 is fixed on the C-way L-shaped bracket 23, and the other end is connected with the wiring port of the C-way thyristor.
As shown in fig. 5, the a path, the B path, the C path and the D path have a load input terminal and a load output terminal which are independent, and each group of the groups of the contact wires are isolated by an insulating partition board, so as to keep independent spaces, wherein, A partition 39 is arranged between the B path and the C path separately, the partition can be designed integrally with the shell, the A path and the B path are isolated by the B path fixing plate 13, and the C path and the D path are isolated by the C path fixing plate 25. In fig. 5:
U1A is the load input end of the A path, and U2A is the load output end of the A path;
U1B is the load input end of the B path, and U2B is the load output end of the B path;
U1C is the load input end of the C path, and U2C is the load output end of the C path;
U1D is the load input end of the D path, and U2D is the load output end of the D path;
the load input end is connected with a load power supply, and the load output end is connected with a load; the load power supply, the load input end, the load output end and the load are connected in series.
When the single-phase four-way power controller works, the first load wiring terminal is respectively connected with a U1A wiring port on the A-way L-shaped bracket 11 and a U2A wiring port on the A-way inductor bracket 10; the second load wiring terminal is respectively connected with a U1B wiring port on the B-path L-shaped bracket 14 and a U2B wiring port on the B-path inductance bracket 16; the third load wiring terminal is respectively connected with a U1C wiring port on the C-path L-shaped bracket 23 and a U2C wiring port on the C-path inductance bracket 22; the fourth load terminal is connected with the U1D wiring port on the D-path L-shaped bracket 26 and the U2D wiring port on the D-path inductance bracket respectively. The power interface 33 is connected to the controller power supply.
When the temperature signal is PT100, the sensor signal end is connected with the PT100 signal acquisition end 32; when the temperature signal is an analog signal, the sensor signal terminal is connected to the analog signal acquisition terminal 35.
When the single-phase four-way power controller works, the controller realizes the adjustment of load output voltage or power by utilizing the embedded PID algorithm of the processor through PT100, analog and other signals fed back by the temperature sensor.
When the single-phase four-way power controller works, the information such as the power supply voltage, the load working voltage, the current and the power of the controller, and the input analog signals can be displayed in real time through the OLED liquid crystal screen. By key operation, the operation mode of the controller, the content of the liquid crystal display, and the like can be adjusted. The controller can communicate with the equipment such as a PC and a PLC through bus interfaces such as a serial port and the like, so that good human-computer interaction experience is realized.
When the single-phase four-way power controller works, a temperature sensor (temperature resistor) is arranged in the controller, the working temperature inside the controller is monitored in real time, and after the temperature reaches a set value, the cooling fan 2 is started to perform forced air cooling, so that the heat dissipation capacity is increased, and the controller is ensured to stably operate.
The circuit principle of the power controller is shown in fig. 6, and the power controller consists of a microprocessor, a power supply processing module, a signal input module, a load control and monitoring module, a control panel state monitoring module, a USB communication module, a key processing module and a display module; the functions of each module are as follows:
1. microprocessor
An M3 kernel and an MCU with a main frequency of 72MHz are adopted as a core controller, and control and communication are carried out with external equipment through interfaces of IIC, SPI, USB and the like; and the 12-bit ADC module is used for detecting external signals such as main power supply voltage, load current, control panel temperature, analog signals, load temperature and the like.
2. Load control and monitoring module
The load control realizes the adjustment of load voltage/power by controlling the on-off of the bidirectional thyristor through the MCU, and mainly adopts two modes of zero-crossing triggering and phase-shifting triggering. Zero-crossing triggering is the triggering of the silicon controlled rectifier when the name implies that the zero-crossing point exists, the alternating current passes through zero point in the process from positive half cycle to negative half cycle or from negative half cycle to positive half cycle, the output average power of the silicon controlled rectifier is changed by changing the conduction cycle number within a certain time, the effect of adjusting the load power is realized, and the cycle number refers to the time that the alternating current completes one complete change, namely one cycle is called as the time that the sine waveform passes. The phase shift trigger is to change the starting point position or the ending position of each cycle of conduction so as to adjust the output power or the voltage of the phase shift trigger, and the conduction quantity of the controllable silicon is actually controlled by controlling the conduction angle of the controllable silicon.
The monitoring module adopts devices such as an alternating current transformer and a current transformer to realize zero detection of alternating voltage signals, voltage, current and other signal acquisition, and combines an algorithm to realize acquisition of information such as alternating voltage, current, load power, load resistance and the like.
3. Power supply processing module
The input alternating voltage is converted into direct voltage required by the control panel, and then the control panel system is supplied with power.
4. Signal input module
The module can collect analog signals of 4-20mA, 0-5V, 0-10V and the like, and can collect PT100 platinum resistance signals and digital signals; the collected signals are converted into load control signals through a program built-in algorithm, so that the accurate control of load voltage/power signals is realized.
5. State monitoring module
Monitoring signals such as temperature, voltage and the like of a control panel; when the temperature and the voltage of the control panel are abnormal, the work of the control panel can be interrupted in time.
6. Communication module
The USB interface is communicated with the PC and other devices, and the PC can be used for setting working parameters of the control panel.
7. Display module
The man-machine friendly interaction is realized through the indication of the OLED liquid crystal screen with the 128 x 64 dot matrix and the LED lamp. The OLED screen can display interfaces such as power supply voltage, load current, load temperature, load power, system parameter setting and the like. The LED indicator lamp can prompt through flashing when an error occurs in the control panel or the load module.
8. Key processing module
The function of controlling the system parameter setting of the control panel can be realized through the external keys.
When the single-phase four-way power controller is used, the single-phase four-way power controller is arranged on a wall body or a mounting plate, and through unique external heat dissipation and internal design, four groups of signal collectors, four groups of thyristors and four groups of load input and output circuits are used, four complete independent software and hardware systems are integrated in a limited space, so that the four-way load working power can be independently controlled, and the single-phase four-way power controller has two working modes of same signal output and difference signal output.
Based on the device structure, the multi-channel signal acquisition and multi-channel power control can be integrated in the large heating furnace, and meanwhile, only a single group of power supply is needed, so that the device is suitable for high-integration, multi-channel free control, energy conservation and consumption reduction, and the problems that a plurality of controllers are needed to be installed, a plurality of lines are paved and high energy consumption are solved in a large-scale temperature control occasion.
The embodiment can also be widely applied to voltage, current and power regulation in various industrial fields, and is suitable for power control of resistive loads, inductive loads and gas loads. Specific application scenarios are as follows: temperature control of a salt bath furnace, a power frequency induction furnace and a quenching furnace; controlling the temperature of the heat treatment furnace; temperature control in the glass production process; heating the diamond press; high-power magnetizing/demagnetizing equipment; a semiconductor industrial boat evaporation source; regulating the voltage of an aviation power supply; a vacuum magnetron sputtering power supply; a textile machine; producing a crystal stone; a powder metallurgy machine; the tunnel electric kiln distributed temperature control system; color picture tube production equipment; metallurgical machinery equipment; dragging by an alternating current-direct current motor; petrochemical machinery; stepless smooth regulation of voltage, current, power, lamplight, etc.
Any combination of the technical features of the above embodiments may be performed (as long as there is no contradiction between the combination of the technical features), and for brevity of description, all of the possible combinations of the technical features of the above embodiments are not described; these examples, which are not explicitly written, should also be considered as being within the scope of the present description.
Claims (10)
1. The single-phase multipath power controller is characterized by comprising a main control board (19), an A-path power control component, a B-path power control component, a C-path power control component and a D-path power control component which are arranged in the same radiating chassis;
the left side and the right side of the radiating chassis are respectively provided with a radiating frame (5), a radiating fan (2) is arranged in the bottom area of the radiating chassis, and a circuit board mounting plate (6) with a U-shaped structure is fixedly arranged above the radiating fan (2) and close to the inner wall of the radiating frame (5);
the main control board (19) is fixed on the bottom surface of the U-shaped structure of the circuit board mounting board (6); the main control board (19) is provided with multiple sensor signal acquisition ports (32, 35), multiple control signal output ports (34) and the same power interface (33); the multichannel sensor signal acquisition ports (32 and 35) and the multichannel control signal output port (34) support sensor signal acquisition and control signal output of the A-path power control component, the B-path power control component, the C-path power control component and the D-path power control component which are independent;
the A-path power control assembly and the D-path power control assembly are symmetrically arranged in the radiating chassis and are respectively fixed on the U-shaped structure of the circuit board mounting plate (6) and the corresponding side face of the radiating frame (5);
the B-path power control component and the C-path power control component are symmetrically arranged in the area between the A-path power control component and the D-path power control component and are respectively and parallelly close to the A-path power control component and the D-path power control component; the B-path power control component and the C-path power control component are respectively fixed on the bottom surface of the U-shaped structure of the main control board (19) or the circuit board mounting board (6); wherein, the circuit main bodies of the power control component B and the power control component C are integrated on the main control board (19);
the power control system comprises an A-path power control component, a B-path power control component, a C-path power control component and a D-path power control component, wherein a load input end and a load output end which are independent are arranged in the A-path power control component, the B-path power control component, the C-path power control component and the D-path power control component, and an insulating partition plate is arranged between each group of the power control components for isolation.
2. The single-phase multi-path power controller of claim 1, wherein the a-path power control component and the D-path power control component each comprise a single-path circuit board, a thyristor, an inductor bracket, an L-shaped bracket, and a fuse; the single-circuit board is fixed on the circuit board mounting plate, and the thyristor penetrates through a reserved hole site of the circuit board mounting plate (6) and is finally fixed on the heat dissipation frame (5); after passing through the inductance coil, one end of the inductance bracket is fixed on a circuit board mounting plate (6), the other end of the inductance bracket is fixed on the single-path circuit board, and the hole at the middle turning position is connected with a thyristor wiring port; the L-shaped support is fixed on the circuit board mounting plate (6), one end of the fuse is fixed on the L-shaped support, and the other end of the fuse is connected with the thyristor wiring port.
3. The single-phase multi-path power controller of claim 1, wherein the B-path power control component and the C-path power control component each comprise a fixed plate, an L-shaped bracket, a fuse, an inductive bracket, an inductive coil, and a thyristor; the fixing plate is vertically arranged and fixedly connected with the bottom surface of the U-shaped structure of the circuit board mounting plate (6); after passing through the inductance coil, one end of the inductance bracket is fixed on the fixed plate, the other end of the inductance bracket is fixed on the main control board, and the middle turning position hole is connected with the thyristor wiring port; the L-shaped support is fixed on the fixed plate, one end of the fuse is fixed on the L-shaped support, and the other end of the fuse is connected with the thyristor wiring port.
4. A single-phase multi-path power controller according to claim 3, wherein the fixing plates of the B-path power control assembly and the C-path power control assembly are fixedly connected with the circuit board mounting plate (6) through four hexagonal studs, respectively.
5. A single-phase multi-path power controller as claimed in claim 2 or claim 3 wherein the bottoms of all thyristors are coated with thermally conductive silicone grease.
6. The single-phase multipath power controller according to claim 1, wherein the bottom surface of the heat dissipation case is a mounting base plate (1), the bottom ends of the two side heat dissipation frames (5) are fixedly connected with the mounting base plate (1) respectively, and a shell (3) which is in closed connection with the edges of the two side heat dissipation frames (5) is fixedly arranged above the frame of the heat dissipation fan (2).
7. The single-phase multipath power controller according to claim 1, wherein a touch screen (4) is arranged on the surface of the heat dissipation case, and the touch screen (4) is electrically connected with the main control board.
8. The single-phase multi-path power controller of claim 1, wherein the sensor signal acquisition port comprises a PT100 signal acquisition port and an analog signal acquisition port.
9. Single-phase multi-path power controller according to claim 1, characterized in that the main control board (19) is further provided with a gateway (36) for communication with an external control device.
10. The single-phase multi-path power controller according to claim 1, wherein a temperature sensor is further arranged in the heat dissipation case, and the main control board (19) controls the on/off of the heat dissipation fan according to the temperature monitored in real time.
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| CN202310723257.9A CN116546796B (en) | 2023-06-19 | 2023-06-19 | Single-phase multipath power controller |
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| CN202310723257.9A CN116546796B (en) | 2023-06-19 | 2023-06-19 | Single-phase multipath power controller |
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| CN87107636A (en) * | 1986-11-05 | 1988-07-20 | 默林·格伦 | The static converter that comprises the filter of an anti-High-frequency Interference |
| US6704202B1 (en) * | 1999-06-15 | 2004-03-09 | Matsushita Refrigeration Company | Power controller and compressor for refrigeration system |
| CN2888741Y (en) * | 2005-09-19 | 2007-04-11 | 珠海泰坦科技股份有限公司 | Power supply control system for non-master parallel operation of inverter |
| CN209982317U (en) * | 2019-05-10 | 2020-01-21 | 上海磊强实业有限公司 | 1140V high-voltage silicon controlled power controller |
| WO2021124518A1 (en) * | 2019-12-19 | 2021-06-24 | 東芝三菱電機産業システム株式会社 | Power conversion device and method for manufacturing same |
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2023
- 2023-06-19 CN CN202310723257.9A patent/CN116546796B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87107636A (en) * | 1986-11-05 | 1988-07-20 | 默林·格伦 | The static converter that comprises the filter of an anti-High-frequency Interference |
| US6704202B1 (en) * | 1999-06-15 | 2004-03-09 | Matsushita Refrigeration Company | Power controller and compressor for refrigeration system |
| CN2888741Y (en) * | 2005-09-19 | 2007-04-11 | 珠海泰坦科技股份有限公司 | Power supply control system for non-master parallel operation of inverter |
| CN209982317U (en) * | 2019-05-10 | 2020-01-21 | 上海磊强实业有限公司 | 1140V high-voltage silicon controlled power controller |
| WO2021124518A1 (en) * | 2019-12-19 | 2021-06-24 | 東芝三菱電機産業システム株式会社 | Power conversion device and method for manufacturing same |
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| CN116546796B (en) | 2024-01-26 |
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