Power controller and power control system

Abstract

The utility model relates to the technical field of electric heating, in particular to a power controller and a power control system. The power controller at least comprises a power adjusting assembly and a control unit which are arranged in a shell. The power controller further comprises a temperature control module and a communication module which are in communication connection with the control unit. The shell is provided with a temperature acquisition port and a communication interface, one end of the temperature acquisition port is connected to the temperature control module, and the other end of the temperature acquisition port is externally connected to a temperature sensor. One end of the communication interface is connected to the control unit through the communication module. The temperature control module is arranged in the power controller, and the output end of the temperature control module is directly connected to the control unit, so that external connecting wires can be saved, the space is saved, and the cost of the whole machine is reduced. The temperature acquisition port and the communication interface are arranged on the shell, so that wiring is convenient; and an upper computer and other power controllers are externally connected through the communication interface, so that centralized control or independent control of a plurality of power controllers can be realized, and the requirements of different load conditions are met.

Description

Technical Field

[0001] This utility model relates to the field of electric heating technology, and in particular to a power controller and a power control system. Background Technology

[0002] Power controllers are widely used in heating various industrial furnaces. In existing technologies, they are typically used in conjunction with temperature controllers to heat the load (such as the furnace body). The temperature controller collects and provides feedback on the temperature of the load (such as the furnace body), and the power controller uses the output signal of the temperature controller as part of the control signal or feedback signal to control its output to meet the heating requirements of the load. For example, patent application number 201510912886.1, entitled "A Flat-Plate PECVD Equipment," discloses a flat-plate PECVD equipment, including a reaction chamber and a temperature control device. Multiple heaters are distributed inside the reaction chamber. The temperature control device includes an industrial control computer and a multi-channel temperature control component, all connected to the industrial control computer. Each temperature control component is connected to a heater for independent control. The temperature control component includes a temperature sensor, a temperature controller, and a power regulator. The temperature sensor is located at the location where the heaters are installed in the reaction chamber and is connected to the temperature controller. The power regulator is connected to both the temperature controller and the corresponding heater.

[0003] The aforementioned technical solution requires the additional purchase and configuration of a temperature controller, which has drawbacks such as high cost, cumbersome setup, complex wiring, and large space occupation. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies that require the purchase and configuration of additional temperature controllers when controlling industrial furnace heating, such as high cost, cumbersome setup, complex wiring, and large space occupation, and to provide a power controller and power control system.

[0005] This utility model first provides a power controller, which includes at least a power adjustment component and a control unit disposed within a housing. The power controller also includes a temperature control module and a communication module disposed within the housing and respectively communicatively connected to the control unit. The housing is provided with a temperature acquisition port and a communication interface. One end of the temperature acquisition port is connected to the temperature control module, and the other end is externally connected to a temperature sensor. One end of the communication interface is connected to the control unit via the communication module.

[0006] According to a preferred embodiment, the communication module is disposed separately from the control unit, or the communication module is integrated into the control unit.

[0007] According to a preferred embodiment, the power adjustment component includes at least one set of anti-parallel thyristors, and the trigger lines of the anti-parallel thyristors are connected to the control unit.

[0008] According to a preferred embodiment, the power regulation component includes four sets of anti-parallel thyristors. Each set of anti-parallel thyristors includes two thyristors connected in opposite directions. The four sets of anti-parallel thyristors are connected in parallel on the surface of the heat sink. The temperature control module includes four temperature signal acquisition and processing circuits, which are correspondingly connected to the temperature acquisition ports.

[0009] According to a preferred embodiment, the temperature acquisition port and communication interface are located on the first panel of the housing. The input terminals of four sets of anti-parallel thyristors are connected to one input terminal connector via conductors. The output terminals of the four sets of anti-parallel thyristors are respectively connected to four output terminal connectors via conductors. The one input terminal connector and the four output terminal connectors are located on the second panel of the housing.

[0010] According to a preferred embodiment, the temperature control module is integrated into the control unit, and eight temperature sensors are configured, divided into four groups. One temperature sensor in each group is used for temperature acquisition and control, and another is used for temperature alarm control.

[0011] According to a preferred embodiment, the power adjustment component, the control unit, and the communication module are arranged in a stacked manner or side by side.

[0012] This invention also provides a power control system. The power control system includes at least two power controllers provided by this invention, a host computer, and a load. The input terminal of each power controller is connected to the power grid, and its output terminal is connected to the load. Any two power controllers are connected to each other via a communication interface, which is also connected to the host computer. The load is equipped with a temperature sensor, which is connected to the temperature acquisition port of the power controller.

[0013] According to a preferred embodiment, the load includes several sub-loads, each sub-load being connected to the output terminals of each set of anti-parallel thyristors of each power controller.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] By integrating the temperature control module within the power controller and directly connecting its output to the control unit, external wiring is saved, space is reduced, and overall system cost is lowered. The temperature acquisition port and communication interface are housed within the casing for easy wiring. Connecting to a host computer and other power controllers via the communication interface enables centralized or independent control of multiple power controllers, meeting the needs of various load conditions. Attached Figure Description

[0016] Figure 1 This is a schematic diagram showing the connection of each functional module of the power controller of this utility model;

[0017] Figure 2 This is a schematic diagram of the power controller of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal connections of the power controller of this utility model;

[0019] Figure 4 This is a bottom view of the power controller of this utility model;

[0020] Figure 5 This is a schematic diagram illustrating the application of the power control system of this utility model.

[0021] Marked in the image:

[0022] Power controller-100; Control unit-110; Temperature control module-111; Temperature acquisition port-112; Relay output terminal-113; Communication module-120; Communication address DIP switch interface-121; EtherCAT communication interface-122; Handheld communicator communication interface-123; DeviceNET communication interface-124; Power adjustment component-130; Anti-parallel thyristor-131; Heat sink-132; Input terminal connector-133; Output terminal connector-134; Fuse-135; Housing-140; Indicator light-141; Host computer-200; Load-300. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to experimental examples and specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present invention to the following embodiments. All technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0024] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0026] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing between identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0027] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0028] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0029] Example 1

[0030] This embodiment provides a power controller 100. For example... Figure 1 As shown, the power controller 100 includes a power adjustment component 130 and a control unit 110 disposed within a housing 140, and a temperature control module 111 and a communication module 120 disposed within the housing (140) and respectively communicatively connected to the control unit 110. Preferably, the temperature control module 111 and the communication module 120 are also disposed within the housing 140.

[0031] The temperature control module 111 is used to process external temperature information and transmit the processed temperature control signal to the control unit 110. The control unit 110 can adjust the power adjustment component 130 according to the temperature control signal to output different power.

[0032] See Figure 2 The housing 140 is equipped with a temperature acquisition port 112 and a communication interface.

[0033] See Figure 1 and Figure 2 One end of the temperature acquisition port 112 is communicatively connected to the temperature control module 111, and the other end is externally connected to a temperature sensor. The temperature sensor is configured on the load 300. Preferably, the temperature control module 111 establishes a communication connection with the temperature sensor through the temperature acquisition port 112. Preferably, the temperature control module 111 can be integrated onto the board containing the control unit 110.

[0034] See Figure 1 and Figure 2 One end of the communication interface is connected to the control unit 110 via the communication module 120, and the other end is used for communication with external devices of the power controller 100. (See also...) Figure 2 The communication ports of the communication module 120 may include: a communication address dial switch interface 121, an EtherCAT communication interface 122, a handheld communication interface 123, and a DeviceNET communication interface 124.

[0035] Preferably, the communication module 120 and the control unit 110 can be set separately, or the communication module 120 can be integrated on the board where the control unit 110 is located.

[0036] Preferably, the communication module 120 can exchange data with devices external to the power controller 100. Preferably, the communication module 120 is used to receive control signals and / or output control signals. Preferably, in this embodiment, the communication module 120 is arranged in parallel with the control unit 110, specifically, the communication module 120 is arranged on the side of the control unit 110 board.

[0037] Preferably, the power regulating component 130 includes at least one set of anti-parallel thyristors 131, and the trigger lines of the anti-parallel thyristors are connected to the control unit 110. Preferably, the power regulating component 130 is configured with four sets of anti-parallel thyristors 131. Each set of anti-parallel thyristors includes two thyristors connected in opposite directions. The trigger lines of all four sets of anti-parallel thyristors 131 are connected to the control unit 110, and the control unit 110 can independently or centrally control each set of anti-parallel thyristors 131. Specifically, the control unit 110 can independently adjust one set of anti-parallel thyristors 131 to adjust the output power of that set of anti-parallel thyristors 131; the control unit 110 can also simultaneously control multiple sets of anti-parallel thyristors 131, so that multiple sets of anti-parallel thyristors 131 output at different power levels simultaneously.

[0038] Preferably, the temperature control module 111 can convert the temperature information collected by each temperature sensor into a temperature control signal and transmit it to the control unit 110, which then controls the output of the anti-parallel thyristor 131 corresponding to each temperature sensor. See also Figure 1 Specifically, the anti-parallel thyristor 131 is connected to the load 300, the temperature sensor configured on the load 300 is connected to the temperature control module 111, and the temperature control module 111 is then connected to the control unit 110 corresponding to the anti-parallel thyristor 131. The control unit 110 implements closed-loop control based on the temperature of the load 300.

[0039] See Figure 3 Preferably, four sets of anti-parallel thyristors 131 are arranged in parallel on the surface of the heat sink 132. The temperature control module 111 includes four temperature signal acquisition and processing circuits, which are correspondingly connected to the temperature acquisition port 112.

[0040] Preferably, the temperature control module (111) is integrated into the control unit, and there are eight temperature sensors divided into four groups. One temperature sensor in each group is used for temperature acquisition and control; the other is used for temperature alarm control, and can output an alarm signal after being processed by the control unit 110.

[0041] See Figure 2 Preferably, the temperature acquisition port 112 and the communication interface are located on the first panel of the housing 140. The input terminals of the four anti-parallel thyristors 131 are connected to the same input terminal connector 133 via cables or other conductors. The output terminals of the four anti-parallel thyristors 131 are respectively connected to four output terminal connectors 134 via cables or other conductors. One input terminal connector 133 and four output terminal connectors 134 are located on the second panel of the housing 140.

[0042] See Figure 2 and Figure 3Preferably, the input terminals of the four sets of anti-parallel thyristors are also connected to fuses 135. The fuses 135 are quick-release type, and their release end is located on the first panel of the housing 140.

[0043] See Figure 2 Preferably, the housing 140 is cubic. The first panel of the housing 140 is a front sidewall panel of the housing 140. The first panel of the housing 140 is also the bottom panel of the housing 140.

[0044] See Figure 2 The first panel of the housing 140 is provided with two temperature acquisition ports 112 and several communication ports, and the temperature acquisition ports 112 and several communication ports extend through the housing 140. The temperature acquisition ports 112 are configured with several temperature acquisition inputs, and the number of temperature acquisition inputs configured on both temperature acquisition ports 112 is set to four.

[0045] The second panel of the housing 140 is provided with four output connectors 134 and one input connector 133, and the output connectors 134 and the input connector 133 penetrate the housing 140.

[0046] The first panel of the housing 140 is also provided with a relay output terminal 113. The relay output terminal 113 is provided with several sets of relay outputs without a common node. The number of sets of relay outputs without a common node is equal to the number of temperature acquisition input channels of any temperature acquisition port 112; the alarm signal of the temperature alarm control can be output to the outside through this relay output terminal 113.

[0047] The first panel of the housing 140 is also provided with several status indicator lights 141.

[0048] The first panel of the housing 140 is also provided with four fuses 135. The number of fuses 135 is the same as that of the output terminal connectors 134, and the quick-release fuses 135 adopt a plug-in structure.

[0049] See Figure 3 The power adjustment component 130, control unit 110, and communication module 120 are stacked vertically. (See also...) Figure 2 ,exist Figure 2 From a viewing angle, the power adjustment component 130, the control unit 110, and the communication module 120 are arranged side by side. Preferably, the control unit 110, the communication module 120, and the power adjustment component 130 are all housed inside the housing 140. See also Figure 2 and Figure 3The control unit 110 is communicatively connected to the communication module 120 and the power adjustment component 130. The relay output terminal 111 and the temperature acquisition port 112 are electrically connected to the control unit 110. The communication address DIP switch interface 121, the EtherCAT communication interface 122, the handheld communication interface 123, and the DeviceNET communication interface 124 are all electrically connected to the communication module 120. The output connector 134, the input connector 133, and the quick-release fuse 135 are electrically connected to the power adjustment component 130.

[0050] See Figure 3 Preferably, the control unit 110 is disposed between the communication module 120 and the power adjustment component 130, and the control unit 110 is connected to the communication module 120 and the power adjustment component 130 respectively by screw connection.

[0051] See Figure 4 The second panel of the housing 140 has several heat dissipation and ventilation holes around the output terminal connector 134 and the input terminal connector 133.

[0052] Preferably, the input terminal connector 133 includes a live wire, a neutral wire, and a ground wire; wherein the ground wire is connected to the housing 140, and the live wire and the neutral wire are connected to the power grid.

[0053] Example 2

[0054] This embodiment provides a power control system. See also... Figure 5 The power control system includes at least two power controllers 100, a host computer 200, and a load 300. Preferably, the power controller 100 involved in this embodiment is the power controller 100 involved in Embodiment 1.

[0055] Preferably, the power control system includes multiple power controllers 100. Any two power controllers 100 can exchange data via a communication interface, which is externally connected to a host computer 200. Specifically, one of the multiple power controllers 100 communicates with the host computer 200 via the communication interface to achieve data exchange.

[0056] The load 300 is equipped with a temperature sensor, and the temperature sensor is electrically connected to the temperature acquisition port 112 of the power controller 100.

[0057] The input terminal of the power controller 100 is connected to the power grid, and the output terminal is connected to the load 300. The load 300 includes multiple sub-loads. Preferably, one power controller 100 is connected to four sub-loads. Each sub-load is connected to the output terminal of each set of anti-parallel thyristors 131 of each power controller 100. Each sub-load is equipped with two temperature sensors, one of which is a main probe and the other is an auxiliary probe. Preferably, the main probe is used for temperature acquisition control, and the auxiliary probe is used for temperature alarm control. Both temperature sensors configured in each sub-load are electrically connected to the temperature acquisition port 112 of the power controller 100.

[0058] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A power controller, comprising at least a power regulating component (130) and a control unit (110) disposed within a housing (140), characterized in that, It also includes a temperature control module (111) and a communication module (120) disposed within the housing (140) and respectively connected to the control unit; The housing (140) is provided with a temperature acquisition port (112) and a communication interface. One end of the temperature acquisition port (112) is connected to the temperature control module (111), and the other end is connected to the temperature sensor. One end of the communication interface is connected to the control unit (110) via the communication module (120).

2. A power controller according to claim 1, characterized in that, The communication module (120) is set separately from the control unit (110), or the communication module (120) is integrated into the control unit (110).

3. A power controller according to claim 2, characterized in that, The power adjustment component (130) includes at least one set of anti-parallel thyristors (131), and the trigger line of the anti-parallel thyristors (131) is connected to the control unit (110).

4. A power controller according to claim 3, characterized in that, The power adjustment component (130) includes four sets of anti-parallel thyristors (131), each set of anti-parallel thyristors (131) includes two thyristors arranged in opposite directions, and the four sets of anti-parallel thyristors (131) are arranged in parallel on the surface of the heat sink (132); the temperature control module (111) includes four temperature signal acquisition and processing circuits, and is correspondingly connected to the temperature acquisition port (112).

5. A power controller according to claim 4, characterized in that, The temperature acquisition port (112) and communication interface are located on the first panel of the housing (140); the input terminals of the four anti-parallel thyristors (131) are connected to an input terminal connector (133) via conductors, and the output terminals of the four anti-parallel thyristors (131) are connected to four output terminal connectors (134) via conductors respectively. The one input terminal connector (133) and the four output terminal connectors (134) are located on the second panel of the housing (140).

6. A power controller according to claim 5, characterized in that, The temperature control module (111) is integrated into the control unit. There are eight temperature sensors, divided into four groups. One temperature sensor in each group is used for temperature acquisition and control, and the other is used for temperature alarm control.

7. A power controller according to claim 5, characterized in that, The power adjustment component (130), the control unit (110), and the communication module (120) are arranged in a stacked manner or side by side.

8. A power control system, characterized in that, Includes at least two power controllers (100) as described in any one of claims 1-7, a host computer (200), and a load (300); The power controller's input terminal is connected to the power grid, and its output terminal is connected to the load (300). Any two power controllers (100) can communicate with each other through a communication interface, and the communication interface is connected to the host computer (200). The load (300) is equipped with a temperature sensor, which is connected to the temperature acquisition port (112) of the power controller (100).

9. A power control system according to claim 8, characterized in that, The load (300) includes several sub-loads, each of which is connected to the output terminal of each set of anti-parallel thyristors (131) of each power controller (100).

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