Greenhouse roller shutter AC motor controller
By integrating a motor protector and a parallel-designed AC contactor, the safety hazards and limit control accuracy issues of the greenhouse curtain machine controller are resolved, achieving highly reliable and intelligent motor protection suitable for both three-phase and single-phase motors.
Patent Information
- Application Number
- CN202522404328.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-13
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-11-13
AI Technical Summary
Existing greenhouse curtain machine controllers lack effective motor protection mechanisms, posing safety hazards, and have low limit control accuracy, making it difficult to meet the needs of automated agriculture.
It adopts an integrated motor protector, parallel-designed AC contactors and limit switches, combined with manual and automatic control modes, and has overload and short-circuit protection functions, and achieves precise limit control.
It improves the safety and durability of the motor, prevents mechanical over-winding or loosening, supports intelligent operation and remote control, and enhances the reliability and applicability of the greenhouse curtain system.
Smart Images
Figure CN223758198U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of agricultural greenhouse automation equipment, and specifically relates to a greenhouse roller shutter alternating current motor controller. BACKGROUND
[0002] The greenhouse roller shutter machine is the key equipment in the modern agricultural greenhouse production management, and its main function is to realize the unfolding and folding of the heat preservation roller shutter through the forward and reverse rotation of the motor, so as to adjust the light and temperature in the greenhouse.
[0003] At present, the commonly used controller is mainly composed of a mechanical reverse switch or a simple relay combination, and such devices have obvious defects in actual application: 1. The existing technology lacks effective protection mechanism for the motor, such as overload, open-phase failure, etc. cannot cut off the power supply in time, which is easy to cause the motor to burn out and has safety hazards; 2. The traditional control mode depends on manual judgment of the roller shutter position, and the limit control precision is low, which is easy to cause the roller shutter to be excessively retracted, affecting the work efficiency, and is difficult to meet the development needs of automated agriculture.
[0004] Therefore, it is urgent to develop a greenhouse roller shutter alternating current motor controller with high reliability, integrated protection function and precise limit control. UTILITY MODEL CONTENTS
[0005] The utility model aims at overcoming the defects of the prior art, and provides a greenhouse roller shutter alternating current motor controller with reasonable structure, safety and reliability, integrated motor protection and safe switching of forward and reverse rotation.
[0006] To solve the above technical problems, the technical scheme provided by the utility model is as follows:
[0007] A greenhouse roller shutter alternating current motor controller, comprising a shell, a circuit assembly arranged in the shell, and a wiring terminal arranged on the shell; the wiring terminal comprises an input terminal and an output terminal;
[0008] The circuit assembly is integrated with a motor protector, a first alternating current contactor and a second alternating current contactor; the input end of the motor protector is connected with the input terminal, and the output end of the motor protector is connected with the input end of the first alternating current contactor and the second alternating current contactor respectively; the output end of the first alternating current contactor and the second alternating current contactor is connected with the output terminal respectively; the first alternating current contactor and the second alternating current contactor adopt parallel commutation design;
[0009] The circuit assembly is also provided with an ascending control button, a descending control button and a limit switch, the limit switch is provided with an automatic ascending switch, an automatic descending switch and a limit power switch, the ascending control button and the automatic ascending switch are connected to the coil A1 and the coil A2 of the first AC contactor respectively; the descending control button and the automatic descending switch are connected to the coil A1 and the coil A2 of the second AC contactor respectively; the limit power switch is connected to the ascending control button and the descending control button for resetting the ascending control button and the descending control button.
[0010] Preferably, the controller adopts three-phase power input and is connected with the three-phase motor through output terminals; the output terminals include a first output terminal, a second output terminal, a third output terminal and a fourth output terminal;
[0011] The input terminals of the motor protector are connected with L1, L2 and L3 of the three-phase power source respectively; the input terminals of the first AC contactor and the second AC contactor are connected with the output terminals of the motor protector respectively;
[0012] The first output terminal of the first AC contactor is connected to the second output terminal of the second AC contactor, and they are connected with the U terminal of the three-phase motor through the first output terminal together;
[0013] The second output terminal of the first AC contactor is connected to the first output terminal of the second AC contactor, and they are connected with the V terminal of the three-phase motor through the second output terminal together;
[0014] The third output terminal of the first AC contactor is connected to the third output terminal of the second AC contactor, and they are connected with the W terminal of the three-phase motor through the third output terminal together.
[0015] Preferably, the controller adopts single-phase AC power input and is connected with the single-phase motor through output terminals;
[0016] The input terminals include a first input terminal, a second input terminal, a third input terminal and a fourth input terminal; the first input terminal, the second input terminal, the third input terminal and the fourth input terminal are connected with ground wire, zero wire, fire wire and fire wire respectively;
[0017] The input terminals of the motor protector are connected with the second input terminal, the third input terminal and the fourth input terminal respectively; the input terminals of the first AC contactor and the second AC contactor are connected with the output terminals of the motor protector respectively;
[0018] The first output terminal of the first AC contactor is connected to the second output terminal of the second AC contactor, and they are connected with the V1 terminal of the single-phase motor through the first output terminal together;
[0019] The second output end of the first AC contactor is connected to the first output end of the second AC contactor, and is connected to the Z2 end of the single-phase motor through a second output terminal together;
[0020] The third output end of the first AC contactor is connected to the third output end of the second AC contactor, and is connected to the U1 end of the single-phase motor through a third output terminal together;
[0021] The fourth output terminal is connected to a zero line and the U2 end of the single-phase motor respectively.
[0022] Preferably, a distribution board is further arranged in the shell, and a power control button is arranged on the distribution board, and the up control button and the down control button are arranged on the distribution board.
[0023] Preferably, a current sensor is arranged between the input terminal and the motor protector.
[0024] Preferably, an observation window is arranged on the distribution board, and the observation window is used to expose the motor protector, the first AC contactor and the second AC contactor.
[0025] Preferably, a data transmission interface is arranged on the shell, and the data transmission interface is connected to the distribution board and is used for remote control.
[0026] The utility model discloses the advantages are:
[0027] The utility model discloses two AC contactors adopt parallel shunt design, can control the positive rotation and reverse rotation of motor and control the rolling shutter of greenhouse to rise and fall. The utility model discloses support manual and automatic control mode, can connect environmental controller and realize intelligent operation, also can be operated through manual. The utility model discloses strong applicability, can adapt to AC single-phase and three-phase motor. The utility model discloses still possess overload and short circuit protection mechanism, effectively avoid motor damage, improve equipment safety and durability. Meanwhile, the utility model discloses can automatically identify rolling shutter stroke terminal point and stop motor in time, prevent mechanical overwinding or loosening, guarantee operation reliable. BRIEF DESCRIPTION OF DRAWINGS
[0028] Figure 1 It is structural diagram of one kind of greenhouse rolling shutter AC motor controller in example 1.
[0029] Figure 2 It is structural diagram of distribution board in one kind of greenhouse rolling shutter AC motor controller in example 1.
[0030] Figure 3 It is circuit diagram of one kind of greenhouse rolling shutter AC motor controller in example 1.
[0031] Figure 4 It is circuit diagram of one kind of greenhouse rolling shutter AC motor controller in example 2.
[0032] Indicated in the figure:
[0033] 1, housing; 11, data transmission interface.
[0034] 2, circuit assembly; 21, current sensor.
[0035] 3, distribution board; 31, up control button; 32, down control button; 33, power control button; 34, observation window.
[0036] 4, input terminal; 41, first input terminal; 42, second input terminal; 43, third input terminal; 44, fourth input terminal.
[0037] 5, output terminal; 51, first output terminal; 52, second output terminal; 53, third output terminal; 54, fourth output terminal.
[0038] 6, motor protector.
[0039] 7, first AC contactor; 71, first output terminal of the first AC contactor; 72, second output terminal of the first AC contactor; 73, third output terminal of the first AC contactor.
[0040] 8, second AC contactor; 81, first output terminal of the second AC contactor; 82, second output terminal of the second AC contactor; 83, third output terminal of the second AC contactor.
[0041] 9, limit switch; 91, automatic up switch; 92, automatic down switch; 93, limit power switch. DETAILED DESCRIPTION
[0042] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0043] The motor protector in the following embodiments is selected as ABB MS116-4.0 motor protection circuit breaker. The AC contactor is purchased from Xiamen Hongfa Electric Co., Ltd., and the model is UEC1-09C11BD.
[0044] Embodiment 1
[0045] The present embodiment discloses a greenhouse roller shutter AC motor controller, which comprises a housing 1, a data transmission interface 11, a circuit assembly 2, a current sensor 21, a distribution board 3, an up control button 31, a down control button 32, a power control button 33, an observation window 34, an input terminal 4, a first input terminal 41, a second input terminal 42, a third input terminal 43, a fourth input terminal 44, an output terminal 5, a first output terminal 51, a second output terminal 52, a third output terminal 53, a fourth output terminal 54, a first AC contactor 7, a first output terminal 71 of the first AC contactor, a second output terminal 72 of the first AC contactor, a third output terminal 73 of the first AC contactor, a second AC contactor 8, a first output terminal 81 of the second AC contactor, a second output terminal 82 of the second AC contactor, a third output terminal 83 of the second AC contactor, a limit switch 9, an automatic up switch 91, an automatic down switch 92, and a limit power switch 93. Figure 1As shown, it comprises a housing 1, a circuit assembly 2 arranged in the housing 1, a distribution board 3 and wiring terminals arranged on the housing. The wiring terminals comprise input terminals 4 and output terminals 5. The embodiment adopts a three-phase power supply and is connected with a three-phase motor through the output terminals 5.
[0046] The circuit assembly 2 is integrated with a motor protector 6, a first AC contactor 7, a second AC contactor 8 and a limit switch 9. The input terminals of the motor protector 6 are connected with the input terminals 4, and the output terminals of the motor protector 6 are connected with the input terminals of the first AC contactor 7 and the second AC contactor 8 respectively. The output terminals of the first AC contactor 7 and the second AC contactor 8 are connected with the output terminals 5 respectively; the first AC contactor 7 and the second AC contactor 8 adopt a parallel commutation design. A current sensor 21 is further arranged between the input terminals 4 and the motor protector 6.
[0047] As shown in Figure 2 The distribution board 3 is provided with an up control button 31, a down control button 32 and a power control button 33. The distribution board 3 is further provided with an observation window 34.
[0048] The limit switch 9 is provided with an automatic up switch 91, an automatic down switch 92 and a limit power switch 93. The up control button 31 and the automatic up switch 91 are connected with the coil A1 and the coil A2 of the first AC contactor 7 respectively; the down control button 32 and the automatic down switch 92 are connected with the coil A1 and the coil A2 of the second AC contactor 8 respectively. The limit power switch 93 is connected with the up control button 31 and the down control button 32 for resetting the up control button 31 and the down control button 32.
[0049] The bottom of the housing 1 is provided with a data transmission interface 11 connected with the distribution board 3 for transmitting signals to the limit switch 9 to complete automation or remote control.
[0050] The output terminals 5 comprise a first output terminal 51, a second output terminal 52, a third output terminal 53 and a fourth output terminal 54.
[0051] The input terminals of the motor protector 6 are connected with L1, L2 and L3 of the three-phase power supply through the input terminals 4 respectively. The input terminals of the first AC contactor 7 and the second AC contactor 8 are connected with the output terminals of the motor protector 6 respectively.
[0052] The first output terminal 71 of the first AC contactor is connected with the second output terminal 82 of the second AC contactor, and they are connected with the U terminal of the three-phase motor through the first output terminal 51.
[0053] The second output terminal 72 of the first AC contactor is connected with the first output terminal 81 of the second AC contactor, and they are connected with the V terminal of the three-phase motor through the second output terminal 52.
[0054] The third output terminal 73 of the first AC contactor is connected to the third output terminal 83 of the second AC contactor, and is connected to the W terminal of the three-phase motor through the third output terminal 53.
[0055] The working principle of the embodiment is as follows:
[0056] 1. Power access and preliminary protection
[0057] The three-phase power (L1, L2, L3) is accessed into the controller through the input terminal 4, and is first connected to the input terminal of the motor protector 6. The motor protector 6 has protection functions such as overload, open phase, and short circuit, and can automatically cut off the circuit when detecting abnormal current or voltage conditions, thereby protecting the safe operation of the motor and the controller.
[0058] 2. Up control process:
[0059] When the up control button 31 is pressed, the coil A2 of the first AC contactor 7 is powered on, the first AC contactor 7 is closed, and the second AC contactor 8 is in an open state. At this time, the current is connected to the three-phase motor through the first AC contactor 7 and the output terminal 5. At this time, the connection path of the three-phase current is as follows:
[0060] L1 is connected to the U terminal of the three-phase motor through the first output terminal 71 of the first AC contactor, the first output terminal 51 in sequence. L2 is connected to the V terminal of the three-phase motor through the second output terminal 72 of the first AC contactor, the second output terminal 52 in sequence. L3 is connected to the W terminal of the three-phase motor through the third output terminal 73 of the first AC contactor, the third output terminal 53 in sequence.
[0061] At this time, the motor rotates in the forward direction, and drives the roller blind to rise.
[0062] 3. Down control process:
[0063] When the down control button 32 is pressed, the coil A2 of the second AC contactor 8 is powered on, the second AC contactor 8 is closed, and the first AC contactor is still in the open state 7. At this time, the current is connected to the three-phase motor through the second AC contactor 8 and the output terminal 5. At this time, the connection path of the three-phase current is as follows:
[0064] L1 is connected to the V terminal of the three-phase motor through the first output terminal 81 of the second AC contactor, the second output terminal 52 in sequence. L2 is connected to the U terminal of the three-phase motor through the second output terminal 82 of the second AC contactor, the first output terminal 51 in sequence. L3 is connected to the W terminal of the three-phase motor through the third output terminal 83 of the second AC contactor, the third output terminal 53 in sequence.
[0065] At this time, the motor rotates in the reverse direction, and drives the roller blind to descend.
[0066] 4. Limiting protection mechanism
[0067] In order to prevent the roller blind from being excessively raised or lowered to cause mechanical damage, the utility model sets the limiting power switch 93 on the limiting switch 9. When the external detection device detects that the roller blind is raised or lowered to the specified height, the external signal is input through the data transmission interface 11, the limiting power switch 93 resets the raising control button 31 and the lowering control button 32, the circuit is disconnected, and the three-phase motor stops working.
[0068] 5. Remote or automatic control
[0069] The data transmission interface 11 is connected to the distribution board 3 and is used for transmitting signals to the limiting switch 9 to complete automatic or remote control.
[0070] Through the specified programming or remote control mode, the automatic raising switch 91 and the automatic lowering switch 92 can be sent instructions through the data transmission interface 11, so that the automatic or timing roller blind and curtain operation is completed.
[0071] Embodiment 2
[0072] The utility model discloses a greenhouse roller blind alternating current motor controller which comprises a shell 1, a circuit assembly 2 arranged in the shell 1, a distribution board 3 and a wiring terminal arranged on the shell. The wiring terminal comprises an input terminal 4 and an output terminal 5. The utility model adopts single-phase alternating current and is connected with a single-phase motor through the output terminal 5.
[0073] The input terminal 4 comprises a first input terminal 41, a second input terminal 42, a third input terminal 43 and a fourth input terminal 44. The first input terminal 41, the second input terminal 42, the third input terminal 43 and the fourth input terminal 44 are respectively connected with the ground wire, the zero wire, the fire wire and the fire wire.
[0074] The circuit assembly 2 is integrated with a motor protector 6, a first alternating current contactor 7, a second alternating current contactor 8 and a limiting switch 9. The input end of the motor protector 6 is connected with the input terminal 4, and the output end of the motor protector 6 is respectively connected with the input end of the first alternating current contactor 7 and the second alternating current contactor 8. The output ends of the first alternating current contactor 7 and the second alternating current contactor 8 are respectively connected with the output terminal 5. The first alternating current contactor 7 and the second alternating current contactor 8 adopt parallel commutation design. A current sensor 21 is further arranged between the input terminal 4 and the motor protector 6.
[0075] The distribution board 3 is provided with an up control button 31, a down control button 32 and a power control button 33. The limit switch 9 is provided with an automatic up switch 91, an automatic down switch 92 and a limit power switch 93. The up control button 31 and the automatic up switch 91 are connected to the coil A1 and the coil A2 of the first AC contactor 7 respectively. The down control button 32 and the automatic down switch 92 are connected to the coil A1 and the coil A2 of the second AC contactor 8 respectively. The limit power switch 93 is connected to the up control button 31 and the down control button 32 for resetting the up control button 31 and the down control button 32.
[0076] The bottom of the shell 1 is provided with a data transmission interface 11 connected to the distribution board 3 for transmitting signals to the limit switch 9 to realize automatic or remote control.
[0077] The output terminal 5 includes a first output terminal 51, a second output terminal 52, a third output terminal 53 and a fourth output terminal 54.
[0078] The input end of the motor protector 6 is connected to the second input terminal 42, the third input terminal 43 and the fourth input terminal 44 respectively. The input end of the first AC contactor 7 and the second AC contactor 8 is connected to the output end of the motor protector 6.
[0079] The first output end 71 of the first AC contactor is connected to the second output end 82 of the second AC contactor, and is connected to the V1 end of the single-phase motor through the first output terminal 51.
[0080] The second output end 72 of the first AC contactor is connected to the first output end 81 of the second AC contactor, and is connected to the Z2 end of the single-phase motor through the second output terminal 52.
[0081] The third output end 73 of the first AC contactor is connected to the third output end 83 of the second AC contactor, and is connected to the U1 end of the single-phase motor through the third output terminal 53.
[0082] The fourth output terminal 54 is connected to the zero line and the U2 end of the single-phase motor respectively.
[0083] The control principle of the embodiment is similar to that of the embodiment 1, and will not be further described here.
[0084] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.
Claims
1. A greenhouse roller AC motor controller, characterized in that, The utility model provides a motor protection device, including the shell, the circuit assembly of being established in the shell and the terminal of being established on the shell, the terminal includes input terminal and output terminal, the circuit assembly is integrated with motor protector, first AC contactor and second AC contactor, the input of motor protector is connected with input terminal, the output of motor protector is connected to the input of first AC contactor and second AC contactor respectively, the output of first AC contactor and second AC contactor is connected to output terminal respectively, first AC contactor and second AC contactor adopt parallel commutation design, the circuit assembly still is equipped with the rise control button, the fall control button and the limit switch, the limit switch is equipped with automatic rise switch, automatic fall switch and limit power switch, the rise control button and automatic rise switch are connected to the coil A1 and coil A2 of first AC contactor respectively, the fall control button and automatic fall switch are connected to the coil A1 and coil A2 of second AC contactor respectively, the limit power switch is connected to rise control button, fall control button for resetting rise control button, fall control button. The controller adopts three-phase power input, and is connected with a three-phase motor through the output terminal; the output terminal includes a first output terminal, a second output terminal, a third output terminal, and a fourth output terminal; The input of the motor protector is connected to L1, L2, and L3 of the three-phase power supply respectively; the input of the first AC contactor and the second AC contactor is connected to the output of the motor protector respectively; 2. The controller for an AC motor for a greenhouse roller blind according to claim 1, characterized in that, The first output of the first AC contactor is connected to the second output of the second AC contactor, and is connected to the U terminal of the three-phase motor through the first output terminal; The second output of the first AC contactor is connected to the first output of the second AC contactor, and is connected to the V terminal of the three-phase motor through the second output terminal; The third output of the first AC contactor is connected to the third output of the second AC contactor, and is connected to the W terminal of the three-phase motor through the third output terminal. The controller adopts single-phase AC power input, and is connected with a single-phase motor through the output terminal; The input terminal includes a first input terminal, a second input terminal, a third input terminal, and a fourth input terminal; the first input terminal, the second input terminal, the third input terminal, and the fourth input terminal are connected to ground wire, zero wire, fire wire, and fire wire respectively; 3. A controller for an AC motor for a greenhouse roller blind according to claim 2, characterised in that, The input of the motor protector is connected to the second input terminal, the third input terminal, and the fourth input terminal respectively; the input of the first AC contactor and the second AC contactor is connected to the output of the motor protector respectively; The first output of the first AC contactor is connected to the second output of the second AC contactor, and is connected to the V1 terminal of the single-phase motor through the first output terminal; The second output of the first AC contactor is connected to the first output of the second AC contactor, and is connected to the Z2 terminal of the single-phase motor through the second output terminal; The third output end of the first AC contactor is connected to the third output end of the second AC contactor, and is connected to the U1 end of the single-phase motor through the third output terminal together; The two ends of the fourth output terminal are respectively connected to the zero line and the U2 end of the single-phase motor.
4. The controller for an AC motor for a greenhouse roller blind according to claim 1, characterized in that, The housing is also provided with a distribution board, and the power control button is arranged on the distribution board.
5. The controller for an AC motor for a greenhouse roller blind according to claim 1, characterized in that, The current sensor is arranged between the input terminal and the motor protector.
6. The controller for an AC motor for a greenhouse roller blind according to claim 4, characterized in that, The distribution board is provided with an observation window for exposing the motor protector, the first AC contactor and the second AC contactor.
7. The controller for an AC motor for a greenhouse roller blind according to claim 4, characterized in that, The housing is provided with a data transmission interface connected to the distribution board for remote control.