Circuit control system and electric mini-tiller

Abstract

The utility model relates to the field of agricultural machinery, in particular to a circuit control system and an electric mini-tiller, the circuit control system comprises a power supply (1), the power supply (1) is electrically connected with a controller (3), and the controller (3) can control the power supply (1) to be disconnected. According to the utility model, when the motor or the power supply is abnormal, the power supply can be actively cut off for shutdown so as to protect the motor and practical personnel, and the design layout is simple, the implementation is convenient, and the popularization value is large.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery, and in particular to a circuit control system and an electric micro-tiller. Background Technology

[0002] Electric tillers are agricultural machines powered by electricity, suitable for tilling, weeding, leveling, and other agricultural activities. They offer advantages such as environmental friendliness, energy efficiency, low noise, and ease of operation, making them an important tool in modern agricultural management. However, current electric tiller designs prioritize cost reduction, neglecting safety considerations. Safety protection devices are often lacking, few in number, or even absent, posing a significant safety risk to users.

[0003] Therefore, those skilled in the art are dedicated to developing a circuit control system with overload protection and an electric micro-tiller. Utility Model Content

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by this utility model is to provide a circuit control system and an electric micro-tiller.

[0005] To achieve the above objectives, this utility model provides a circuit control system, including a power supply that provides energy to the device, and a controller that is connected to the power supply when powered on, the controller being able to control the power supply to disconnect.

[0006] Preferably, the controller is electrically connected to a motor, and the U, V, and W terminals of the motor are electrically connected to the U, V, and W terminals of the controller, respectively.

[0007] Preferably, the controller is electrically connected to an air switch, which provides overload protection, short circuit protection, undervoltage protection, isolation, and control functions.

[0008] Preferably, the controller includes a gear shifting module, a power display module, a speed control module, an emergency stop module, and a start module.

[0009] Preferably, the controller is equipped with a signal transmitting device, and the motor and the power supply are respectively equipped with a first signal receiving device and a second signal receiving device, and the controller regulates the motor and the power supply respectively through the signal transmitting device.

[0010] Preferably, the power source comprises at least two batteries connected in series, which can be adjusted according to the actual situation.

[0011] Preferably, the controller is electrically connected to a charging port, which can be used to charge the battery pack.

[0012] Preferably, the controller is connected to a control panel upon power-up, which is used to display relevant data such as speed, gear, temperature, etc.

[0013] The present invention also provides an electric micro-tiller, including the circuit control system described in any of the above.

[0014] The beneficial effects of this utility model are: it can actively disconnect the power supply and stop the machine when the motor or power supply is abnormal, so as to protect the motor and the user. Moreover, the design layout is simple, easy to implement, and has great promotional value. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a specific embodiment of the present invention.

[0016] Figure 2 This is a circuit connection diagram of a specific embodiment of the present invention.

[0017] 1. Power supply; 2. Air switch; 3. Controller; 31. Gear shifting module; 32. Power display module; 33. Speed ​​control module; 34. Emergency stop module; 35. Start module; 4. Motor; 5. Signal transmitting device; 61. First signal receiving device; 62. Second signal receiving device; 7. Charging port; 8. Control panel. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific manner. Therefore, they should not be construed as limitations on the present invention. Terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] like Figure 1-2 As shown, a circuit control system includes a power supply 1, which is composed of at least two sets of 72V batteries connected in series. In this embodiment, the number of batteries is set to two sets. In other embodiments, other numbers of batteries are selected according to actual usage. Adjacent batteries are connected by a control line and a power supply 1 line. The control line and the power supply 1 line are 380mm long. A second signal receiving device 62 is provided on the control line.

[0020] Power supply 1 is connected to controller 3. Controller 3 can control power supply 1 to disconnect. Specifically, the positive terminal of power supply 1 is connected to the positive terminal of air switch 2, the negative terminal of air switch 2 is connected to the positive terminal of controller 3, and the negative terminal of controller 3 is connected to the negative terminal of power supply 1. Controller 3 is equipped with a signal transmitter 5, which can control the second signal receiver 62 located on the control line to disconnect power supply 1. Controller 3 is also electrically connected to a charging port 7 for charging the battery. Specifically, the positive terminal of controller 3 is connected to the positive terminal of charging port 7, and the negative terminal of controller 3 is connected to the negative terminal of charging port 7.

[0021] The controller 3 is equipped with a shift module 31, a power display module 32, a speed control module 33, an emergency stop module 34, and a start module 35. The shift module 31 is equipped with neutral, high speed, low speed, and reverse gear. Specific related parameters can be centrally displayed through the control panel 8 electrically connected to the controller 3, which is convenient for users to operate.

[0022] The controller 3 is electrically connected to the motor 4. Specifically, the U, V, and W terminals of the motor 4 are electrically connected to the U, V, and W terminals of the controller 3, respectively. The motor 4 is equipped with a first signal receiving device 61 to receive signals transmitted by the controller 3.

[0023] The present invention also provides an electric micro-tiller, including the circuit control system described in any of the above.

[0024] When in use, motor 4 is started, and controller 3 uses a 64-pulse signal to control the speed of motor 4 between 1200 r / min and 4200 r / min. When motor 4 experiences any of the following situations, controller 3 will cut off power to power supply 1 to protect motor 4:

[0025] 1) When the speed of motor 4 exceeds 4250 r / min;

[0026] 2) When the temperature of motor 4 exceeds 180°C;

[0027] 3) When the load on motor 4 is too high, causing the speed to drop below 1200 r / min.

[0028] Additionally, if power supply 1 fails and controller 3 cannot receive electrical signals from motor 4, controller 3 will stop motor 4 and send an electrical signal to the buzzer (not shown in the figure) to make it sound a long alarm.

[0029] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A circuit control system characterized by: The power supply (1) is electrically connected with a controller (3), and the controller (3) can control the power supply (1) to be disconnected; The controller (3) is provided with a gear shifting module (31), an electric quantity display module (32), a speed control module (33), an emergency stop module (34) and a starting module (35).

2. The circuit control system of claim 1, wherein: The controller (3) is electrically connected with a motor (4), and the U, V and W connecting posts of the motor (4) are electrically connected with the U, V and W connecting posts of the controller (3) respectively.

3. The circuit control system of claim 1, wherein: The controller (3) is electrically connected with an air switch (2).

4. The circuit control system of claim 2, wherein: The controller (3) is provided with a signal emitting device (5), and the motor (4) and the power supply (1) are respectively provided with corresponding first and second signal receiving devices (61 and 62).

5. The circuit control system of claim 1, wherein: The power supply (1) comprises at least two groups of batteries connected in series.

6. The circuit control system of claim 1, wherein: The controller (3) is electrically connected with a charging port (7).

7. The circuit control system of claim 6, wherein: The controller (3) is electrically connected with a control panel (8).

8. An electrically powered mini-tiller characterized by: The circuit control system as claimed in any one of claims 1-7.

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