Electric control equipment

Abstract

The embodiment of the utility model provides electric control equipment. The electric control equipment comprises a power supply input end, a control module and one or more electric control systems, the electric control system comprises an on-off controller, a relay and a load; the power supply input end is connected with the on-off controller, the on-off controller is connected with the relay, the relay is connected with the load, and the control module is connected with the on-off controller; the control module and the on-off controller control the relay to start, and the control module sends a signal to adjust the relay; the relay controls the load. In the technical scheme provided by the embodiment of the utility model, the on-off controller and the relay can be used for carrying out start control on the electric control equipment, and the control module sends a signal to the electric control system so as to adjust the opening degree of one or more electric control systems, so that the load power is controlled, and the water temperature meeting the requirement can be conveniently output.

Description

TECHNICAL FIELD

[0001] The utility model relates to power control technical field especially relates to a kind of electric control equipment. BACKGROUND

[0002] In the process that the inventor realizes the utility model, it is found that prior art at least has the following problems, on the one hand, traditional electric heating control cabinet is often temperature control operation cumbersome when coping with high-power heating demand, and cannot output water temperature meeting requirements.Especially in the industry of mechanical processing, chemical industry, food processing, the requirement of heating equipment is increasing, and traditional electric heating control cabinet has been difficult to meet these needs. UTILITY MODEL CONTENTS

[0003] Therefore, the utility model embodiment provides an electric control equipment, which can conveniently output water temperature meeting requirements through multi-stage linkage control, and solves the problem of cumbersome temperature control operation of electric control equipment.

[0004] On the one hand, the utility model embodiment provides an electric control equipment, comprising:

[0005] power input end, control module and one or more electric control systems;The electric control system comprises on-off controller, relay and load;

[0006] The power input end is connected with the on-off controller, the on-off controller is connected with the relay, the relay is connected with the load, and the control module is connected with the on-off controller;

[0007] The control module and the on-off controller control the relay to start, and the control module sends signal to adjust the relay;

[0008] The relay controls the load. Optionally, when the number of the electric control systems is multiple, the power of the load of each electric control system is the same, different or the power of the load of the electric control system is partially the same in the power of the load of the multiple electric control systems.

[0009] Optionally, the load of multiple electric control systems is divided into two groups or more groups, and the power of the load of each group is different.

[0010] Optionally, the on-off controller comprises circuit breaker and contactor, the power input end is connected with the circuit breaker, the circuit breaker is connected with the contactor, and the contactor is connected with the relay.

[0011] Optionally, the coils of multiple contactors are connected in parallel to the same DO port of the control module.

[0012] Optionally, when the loads of the electric control system are divided into two groups, the coils of one group of the contactors are connected in parallel to the DO1 port of the control module, and the coils of the other group of the contactors are connected in parallel to the DO2 port of the control module.

[0013] Optionally, the relay comprises a three-phase solid-state relay.

[0014] Optionally, the electric control device further comprises a current transformer and a smart meter, the relay is connected with the current transformer and the smart meter respectively, the current transformer is connected with the smart meter, the current transformer is connected with the load, and the smart meter is connected with the control module.

[0015] Optionally, the control module comprises a controller and a display screen.

[0016] Optionally, temperature sensors are arranged at different positions of the load, and the temperature sensors are connected with the control module.

[0017] The technical scheme of the electric control device provided in the embodiment of the utility model comprises: a power input end, a control module and one or more electric control systems; the electric control system comprises an on-off controller, a relay and a load; the power input end is connected with the on-off controller, the on-off controller is connected with the relay, the relay is connected with the load, and the control module is connected with the on-off controller; the control module controls the relay to start, and the control module sends signals to adjust the relay; and the relay controls the load. In the technical scheme provided in the embodiment of the utility model, the electric control device can be started and controlled through the on-off controller and the relay, the control module sends signals to the electric control system, and then the opening degree of the one or more electric control systems is adjusted, so that the load power can be controlled, and the water temperature meeting the requirements can be conveniently output. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the drawings needed to be used in the embodiment will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 The structure schematic view of the electric control device provided in the embodiment of the utility model;

[0020] Figure 2 The structure schematic view of another electric control device provided in the embodiment of the utility model;

[0021] Figure 3 The structure schematic view of another electric control device provided in the embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to better understand the technical scheme of the utility model, the utility model embodiments are described in detail below with reference to the drawings.

[0023] It should be clear that the described embodiments are only part of the embodiments of the utility model, not all. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] The terms used in the embodiments of the utility model are only for the purpose of describing specific embodiments, and are not intended to limit the utility model. The singular form "a", "said" and "the" used in the embodiments of the utility model and the appended claims are also intended to include the plural form, unless the context clearly indicates otherwise.

[0025] It should be understood that the term "and / or" used herein is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0026] The utility model embodiment provides a kind of electric control equipment, electric control equipment can be the intelligent control cabinet for high-power electric heating equipment, can improve the convenience, stability and safety of electric heating equipment.The electric control equipment aims to realize accurate regulation and control and efficient management to high-power electric heating equipment through temperature control algorithm, optimized power distribution strategy and monitoring and fault diagnosis function, improve the safety and reliability of electric control equipment operation.Electric control equipment meets the efficient operation demand of high-power electric heating equipment under complex working conditions through the power control of load and optimized heat dissipation design, simultaneously possess the real-time monitoring, fault early warning etc.

[0027] Figure 1 The structural diagram of a kind of electric control equipment provided in the utility model embodiment, as shown in Figure 1 The electric control equipment includes: power input end 1, control module 3 and one or more electric control systems 2.

[0028] The power input end 1 is connected with the on-off controller 21, the on-off controller 21 is connected with the relay 22, the relay 22 is connected with the load (Heater) 24, and the control module 3 is connected with the on-off controller 21.

[0029] The control module 3 controls the relay 22 to start, and the control module 3 sends a signal to adjust the relay 22.

[0030] The power input end 1 is connected with the on-off controller 21, the on-off controller 21 is connected with the relay 22, the relay 22 is connected with the load (Heater) 24, and the control module 3 is connected with the on-off controller 21. The control module 3 controls the relay 22 to start, and the control module 3 sends a signal to adjust the relay 22.

[0031] In the embodiment of the utility model, the electric control equipment can be applied to the industries of machining, chemical industry, food processing and the like.

[0032] The utility model discloses another electric control equipment, Figure 2 The electric control equipment includes one electric control system, as shown in the figure, Figure 2 The power input end 1, the control module 3 and one electric control system 2, wherein the electric control system 2 includes on-off controller 21, relay 22 and load 24, the on-off controller 21 includes circuit breaker (QF) 211 and contactor (KM) 212, the power input end 1 is connected with circuit breaker 211, circuit breaker 211 is connected with contactor 212, and contactor 212 is connected with relay 22.

[0033] In an embodiment of the present utility model, the electrical control device further includes a current transformer (CT) 231 and a smart meter 232. The relay 22 is connected to the current transformer 231 and the smart meter 232 respectively. The smart meter 232 is connected to the current transformer 231. The current transformer 231 is connected to the load 24. The smart meter 232 is connected to the control module 3.

[0034] In the embodiment of the present invention, the relay 22 may be a three-phase solid-state relay (SSR).

[0035] In the embodiment of the present invention, the control module 3 includes a controller 31 and a display screen 32 , wherein the controller 31 may be a programmable logic controller (PLC).

[0036] Specifically, the smart meter 232 is connected to the controller 31 , the controller 31 is connected to the display screen 32 , and the controller 31 is connected to the contactor 212 .

[0037] In the embodiment of the present invention, the display screen 32 includes a display touch screen, which can display a human-machine interface (HMI).

[0038] In the embodiment of the present invention, the load 24 includes an electric heating load, and temperature sensors are provided at different positions of the load 24 , and the temperature sensors are connected to the control module 3 .

[0039] like Figure 2 As shown, after the circuit breaker 211 is closed, the grid voltage of the power output terminal 1 is sent to the front end of the contactor 212 through the circuit breaker 211. Only when the contactor 212 is closed, the front end of the relay 22 will receive power. The on-off status of the contactor 212 is determined by the port on the controller 31. Only when the controller 31 gives a start signal, the main contacts of the contactor 212 will be attracted. When the front end of the relay 22 is energized, if the start signal input by the controller 31 is not received, there will be no voltage output at the back end of the relay 22. The opening of the relay 22 is determined by the size of the start signal. In summary, in order to achieve voltage input to the load 24, the following three conditions must be met:

[0040] 1. Circuit breaker 211 is closed.

[0041] 2. A start signal is sent to the controller 31 via the display screen 32 . The controller 31 starts the contactor 212 upon receiving the start signal.

[0042] 3. The controller 31 outputs a control percentage value according to the target temperature and target power required by the monitored load 24, and controls the relay 22 to output a voltage to achieve the target temperature and target power of the load 24.

[0043] Only when the above three conditions are met at the same time, the relay 22 will have an input voltage, and the load 24 will start to work, avoiding the occurrence of misoperation and ensuring the safety of the electric control device.

[0044] In actual use, the smart meter 232 detects the real-time power of the load 24 by detecting the voltage and current at the output end of the relay 22. The smart meter 232 can transmit the power and other information data of the load 24 to the controller 31 through the RS485 signal. The controller 31 collects the information data of the load and uploads it to the display screen 32, and compares the collected power with the control percentage, and finally realizes the required heat in the electric control device.

[0045] In the embodiment of the utility model, the controller 31 can collect various information data in the electric control device and feedback various information data to the display screen 32 in time, and the user can directly view through the display screen 32, and the display screen 32 can also change the working state of the electric control device, control the attraction of the contactor 212 and the running percentage of the relay 22 to change the power of the load 24.

[0046] In the embodiment of the utility model, a plurality of temperature sensors can be arranged in the heating container of the load 24 to cover different areas and depths of the heating container to obtain more comprehensive and accurate temperature data, which can be read by the controller 31.

[0047] In the embodiment of the utility model, the display screen 32 is used to display the man-machine interface, and the current water temperature, set temperature, heating power and other information data are displayed intuitively and support touch operation for parameter setting and adjustment. The interface is friendly and easy to use, and meets the temperature control requirements of different working conditions.

[0048] The technical scheme of the electric control device provided in the embodiment of the utility model, the electric control device comprises: a power input end, a control module and one or more electric control systems; the electric control system comprises an on-off controller, a relay and a load; the power input end is connected with the on-off controller, the on-off controller is connected with the relay, the relay is connected with the load, and the control module is connected with the on-off controller; the control module controls the relay to start, and the control module sends a signal to adjust the relay; the relay controls the load. In the technical scheme provided in the embodiment of the utility model, the on-off controller and the relay can be used to control the starting of the electric control device, the control module sends a signal to the electric control system, and then the opening degree of one or more electric control systems is adjusted, so that the load power can be controlled, and the water temperature meeting the requirements can be conveniently output.

[0049] The embodiment of the utility model provides another electric control device, the electric control device comprises a plurality of electric control systems, when the number of electric control systems is multiple, the power of the load of each electric control system can be same, different or the power of the load of multiple electric control systems is partially same. The load of multiple electric control systems can be divided into two groups or more groups, and the power of each group of load can be different.

[0050] Figure 3 The structure diagram of another electric control device provided in the embodiment of the utility model is as shown in Figure 3 The electric control device comprises four electric control systems, the four electric control systems are divided into two groups, each group comprises one load with a power of 48kw and one load with a power of 12kw. For example, the power of the first load 24a is 48kw, the power of the second load 24b is 12kw, the power of the third load 24c is 48kw, and the power of the fourth load 24d is 12kw. The 48kW and 12kW electric heating can be controlled by a three-phase solid-state relay. An intelligent electric meter and a current transformer are arranged for each load to monitor the voltage and current of the load. At the same time, the front end of the relay corresponding to each load is equipped with a contactor and a circuit breaker to form a complete three-level control loop. The coils of the contactors in the first group can be connected in parallel to the DO1 port of the controller 31, and the coils of the contactors in the other group can be connected in parallel to the DO2 port of the controller 31. The control loops of all relays are connected to the controller 31 and communicate with the controller 31, and the controller 31 can directly issue instructions to control the output of the relay, so as to achieve the effect of controlling the load. Temperature sensors can be installed at different positions of the load to detect the temperature of different parts of the load, and the temperature value is fed back to the display screen, so that the user can read the temperature value and adjust the power of the load. The opening degree of the relay can be adjusted to adjust each group of loads with different powers, so as to realize multi-range adjustment of the load power and temperature and meet the multi-working condition and water temperature requirements of the user.

[0051] As Figure 3As shown, the electric control device comprises a power input end 1, a controller 31, a display screen 32 and a plurality of electric control systems 2.

[0052] Wherein, each electric control system 2 comprises an on-off controller 21, a relay 22 and a load 24, each on-off controller 21 comprises a circuit breaker (QF) 211 and a contactor (KM) 212, the power input end 1 is connected with a first circuit breaker 211a, the power input end 1 is connected with a second circuit breaker 211b, the power input end 1 is connected with a third circuit breaker 211c, the power input end 1 is connected with a fourth circuit breaker 211d. The first circuit breaker 211a is connected with a first contactor 212a, the second circuit breaker 211b is connected with a second contactor 212b, the third circuit breaker 211c is connected with a third contactor 212c, and the fourth circuit breaker 211d is connected with a fourth contactor 212d. The first contactor 212a is connected with a first relay 22a, the second contactor 212b is connected with a second relay 22b, the third contactor 212c is connected with a third relay 22c, and the fourth contactor 212d is connected with a fourth relay 22d. Each electric control system 2 further comprises a current transformer 231 and a smart meter 232, the first relay 22a is connected with a first current transformer 231a and a first smart meter 232a respectively, the second relay 22b is connected with a second current transformer 231b and a second smart meter 232b respectively, the third relay 22c is connected with a third current transformer 231c and a third smart meter 232c respectively, and the fourth relay 22d is connected with a fourth current transformer 231d and a fourth smart meter 232d respectively. The first smart meter 232a is connected with the first current transformer 231a, the second smart meter 232b is connected with the second current transformer 231b, the third smart meter 232c is connected with the third current transformer 231c, and the fourth smart meter 232d is connected with the fourth current transformer 231d. The first current transformer 231a is connected with a first load 24a, the second current transformer 231b is connected with a second load 24b, the third current transformer 231c is connected with a third load 24c, and the fourth current transformer 231d is connected with a fourth load 24d. The first smart meter 232a, the second smart meter 232b, the third smart meter 232c and the fourth smart meter 232d are connected with the controller 31 respectively. The coil of the fourth contactor 212d and the coil of the third contactor 212c are connected to the DO2 port of the controller 31, the coil of the first contactor 212a and the coil of the second contactor 212b are connected to the DO1 port of the controller 31, and the controller 31 is connected with the display screen 32.

[0053] In the embodiment of the utility model, the coils of multiple contactors can be connected in parallel to the same DO port of the control module.

[0054] Specifically, coils of multiple contactors can be connected in parallel to the same DO port of the controller.

[0055] In the embodiment of the utility model, when the load of the electric control system is divided into two groups, the coils of one group of contactors can be connected in parallel to the DO1 port of the control module, and the coils of the other group of contactors can be connected in parallel to the DO2 port of the control module.

[0056] Specifically, when the load of the electric control system is divided into two groups, the coils of one group of contactors can be connected in parallel to the DO1 port of the controller, and the coils of the other group of contactors can be connected in parallel to the DO2 port of the controller.

[0057] In the embodiment of the utility model, different types of relays can be selected for control according to the different power supply types of the load, for example, a three-phase solid-state relay can be used to control loads of different power. The software of the display screen has multiple opening degree combinations for simulating various actual working condition requirements, and only the combination type needs to be selected during actual use to quickly switch. The communication function of the entire electric control device can monitor the state of the load in real time to ensure that the actual use and the setting remain consistent. The start-up conditions of the electric control device in the embodiment of the utility model greatly improve the safety of the use of the electric control device. When many different loads are used, the coils of multiple contactors can be controlled simultaneously by the controller to achieve linkage control.

[0058] The technical scheme of the electric control device provided in the embodiment of the utility model comprises: a power input end, a control module, and one or more electric control systems; the electric control system comprises an on-off controller, a relay, and a load; the power input end is connected with the on-off controller, the on-off controller is connected with the relay, the relay is connected with the load, and the control module is connected with the on-off controller; the control module controls the relay to start, and the control module sends a signal to adjust the relay; the relay controls the load. In the technical scheme provided in the embodiment of the utility model, the electric control device can be started and controlled by the on-off controller and the relay, the control module sends a signal to the electric control system, and then the opening degree of one or more electric control systems is adjusted, so that the load power is controlled, and the water temperature meeting the requirements can be conveniently output.

[0059] In the technical scheme provided in the embodiment of the utility model, the three-level control start structure of the circuit breaker-contactor-relay can effectively avoid the misoperation of the load, improve the safety of the system, and meet all necessary conditions to start the load for normal use.

[0060] The intelligent electric meter and current transformer combination can more practically detect the parameter values of voltage, current and power of the load, can compare with the theoretical input values, make an alarm on the display screen in time when the difference is large, remind that the system has an abnormal occurrence, and facilitate the operator to maintain and check.

[0061] The technical scheme provided by the embodiment of the utility model discloses can parallel multiple contactor's coil to the same DO port of controller, can realize multiple contactor's linkage control, reduce the use port number of controller, more convenient operator control system's power -on limit condition.

[0062] The technical scheme provided by the embodiment of the utility model discloses can adjust and control the load opening and time parameters in different use conditions, improve the convenience and efficiency of electric control equipment.

[0063] The technical scheme provided by the embodiment of the utility model discloses strengthens the monitoring of the state of the load of electric control equipment, can intuitively show the operator, adopts the form of display screen control, and man-machine interaction is more efficient and convenient.

[0064] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An electrical control device, characterized in that: include: a power input, a control module, and one or more electrical control systems; The electric control system includes an on-off controller, a relay and a load; The power input terminal is connected to the on-off controller, the on-off controller is connected to the relay, the relay is connected to the load, and the control module is connected to the on-off controller; The control module and the on-off controller control the start-up of the relay, and the control module sends a signal to adjust the relay; The relay controls the load.

2. The electric control device according to claim 1, characterized in that When there are multiple electrical control systems, the power of the loads of each electrical control system is the same, different, or the power of the loads of the multiple electrical control systems is partially the same.

3. The electric control device according to claim 2, characterized in that The loads of the plurality of electrical control systems are divided into two or more groups, and the power of the loads in each group is different.

4. The electric control device according to claim 1, characterized in that The on-off controller includes a circuit breaker and a contactor. The power input end is connected to the circuit breaker, the circuit breaker is connected to the contactor, and the contactor is connected to the relay.

5. The electric control device according to claim 4, characterized in that Connect the coils of the plurality of contactors in parallel to the same DO port of the control module.

6. The electric control device according to claim 5, characterized in that When the loads of the electrical control system are divided into two groups, the coils of the contactors of one group are connected in parallel to the DO1 port of the control module, and the coils of the contactors of the other group are connected in parallel to the DO2 port of the control module.

7. The electric control device according to claim 1, characterized in that The relay comprises a three-phase solid-state relay.

8. The electric control device according to claim 1, characterized in that It also includes a current transformer and a smart meter, the relay is connected to the current transformer and the smart meter respectively, the current transformer is connected to the smart meter, the current transformer is connected to the load, and the smart meter is connected to the control module.

9. The electric control device according to claim 1, characterized in that The control module includes a controller and a display screen.

10. The electric control device according to claim 1, characterized in that Temperature sensors are provided at different positions of the load, and the temperature sensors are connected to the control module.

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