Electric push rod with built-in control panel
The electric push rod with a built-in control panel addresses the need for external controllers by integrating a motor assembly, micro switches, and signal acquisition modules, facilitating self-contained control and reducing costs.
Patent Information
- Application Number
- CN202420921579.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-29
AI Technical Summary
Existing electric linear actuators lack built-in electronic circuit control modules, necessitating third-party controllers for monitoring and control, increasing costs.
An electric push rod with a built-in control panel featuring a motor assembly, micro switches, MOS circuit, and a controller with signal acquisition modules for motor and push rod limits, enabling self-contained control and interface for external components.
Simplifies control and reduces costs by integrating control functions within the actuator, allowing for direct external control and feedback without additional controllers.
Smart Images
Figure CN222147311U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of electric push rods, in particular to an electric push rod with a built-in control panel. Background Art
[0002] An electric push rod is an electric drive device that converts the rotational motion of a motor into the linear reciprocating motion of a push rod. It can be used as an executive machine in a variety of simple or complex process flows to achieve remote control, centralized control or automatic control.
[0003] Nowadays, the structure of electric linear actuators is relatively simple, and they generally do not have built-in electronic circuit control modules. When instructions need to be issued to the electric linear actuator, a third-party controller needs to intervene. The third-party controller acts as an electronic circuit control module to control the movement of the electric linear actuator. Third-party control is required when monitoring, controlling and providing feedback to the electric linear actuator, which will undoubtedly increase the cost of use. Utility Model Content
[0004] The utility model provides an electric push rod with a built-in control panel, which solves the problems in the prior art.
[0005] The technical solution of the utility model is achieved in this way:
[0006] An electric push rod with a built-in control panel comprises a push rod body, an output rod for performing movement and a motor assembly for driving the output rod, wherein the motor assembly is also provided with a motor as a driving source, the push rod body is also provided with a first micro switch and a second micro switch for controlling the limit travel of the output rod, the outer side of the output rod is also sleeved with contacts for touching the two micro switches, the motor assembly is also provided with a controller for controlling the motor, the controller comprises a signal input module for an external control component, a push rod limit signal acquisition module for monitoring the output rod and a MOS circuit for controlling the forward and reverse rotation of the motor, and the motor assembly also comprises a motor signal acquisition module for detecting the motor signal.
[0007] The MOS circuit includes four groups of MOS tubes Q1, Q2, Q3 and Q4 to form an H-bridge circuit. The MOS tubes Q1 and Q4 control the clockwise rotation of the motor, and the MOS tubes Q2 and Q3 control the counterclockwise rotation of the motor.
[0008] The controller is also externally connected to a power supply for supplying power to the controller and the motor.
[0009] The motor signal acquisition module is used to detect three signals of the motor's rotational speed, current and position. The motor signal acquisition module is also connected to the controller's MCU to feed back the collected motor signal to the controller's MCU.
[0010] The push rod limit signal acquisition module is also connected to the first micro switch and the second micro switch. When the contact contacts the first micro switch and the second micro switch, the signal is transmitted to the push rod limit signal acquisition module, and the push rod limit signal acquisition module feeds back the limit signal to the MCU of the controller for controlling the extension and retraction of the output rod.
[0011] After adopting the above technical scheme, the beneficial effect of the utility model is as follows: in the utility model, a controller is built into the motor assembly, and the extension and retraction of the output rod is controlled by relying on a combination of a micro switch and a MOS circuit. An interface for an external control component is also provided to achieve the purpose of the external control component, thereby realizing simpler control and reducing control costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0013] Figure 1 This is a schematic diagram of the physical structure of an electric push rod with a built-in control panel of the utility model;
[0014] Figure 2 This is a schematic diagram of the electric push rod circuit principle;
[0015] Figure 3 This is a schematic diagram of the MOS circuit principle.
[0016] In the figure, 10, push rod body; 20, output shaft; 201, contact; 30, controller; 301, MOS circuit; 302, motor signal acquisition module; 303, push rod limit signal acquisition module; 40, second micro switch; 50, first micro switch; 60, motor. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] Example: Figure 1As shown, an electric push rod with a built-in control panel includes a push rod body 10 and an output rod 20 for performing movement. A motor assembly is also provided on one side of the push rod body 10. The motor assembly also includes a motor 60 and a controller 30 for controlling the motor assembly.
[0019] in, Figure 2 The control circuit schematic diagram of the electric push rod is shown in Figure 2. Figure 2 As shown, the electric push rod power supply is also connected to the controller 30 for power supply, and the controller 30 also includes a command signal input module 304, and an external control component can be connected at the interface of the command signal input module 304, and the control component can be used to control the controller 30, and the controller 30 controls the position of the output rod 20 by issuing instructions to the motor 60;
[0020] The principle of how to control the motor 60 to rotate forward and reverse in this circuit is as follows: Figure 2 As shown, the controller 30 further includes a MOS circuit 301, and the MOS circuit 301 and the motor 60 are connected to each other. Figure 3 As shown, the MOS circuit 301 includes four groups of MOS tubes Q1, Q2, Q3 and Q4. When the Q1 tube and the Q4 tube are turned on, the current passes through the motor 60 from the positive electrode of the power supply through Q1 from left to right, and then returns to the negative electrode of the power supply through Q4, so that the motor 60 rotates clockwise. When the other pair of MOS tubes Q2 and Q3 are turned on, the current flows through the motor 60 from right to left, and the current flows through the motor 60 from right to left, thereby driving the motor 60 to rotate in the counterclockwise direction, controlling the forward and reverse rotation of the motor 60, and realizing the telescopic function of the output rod 20 by relying on the forward and reverse rotation of the motor 60.
[0021] In addition, the controller 30 also includes a push rod limit signal acquisition module 303, and the interface of the push rod limit signal acquisition module 303 is also connected to the first micro switch 50 and the second micro switch 40. The output rod 20 is also sleeved with a contact 201 for toggling the two micro switches. Taking the clockwise rotation of the motor 60 as an example, the motor 60 drives the push rod to move in the direction a, and the contact 201 on the outside of the output rod 20 first touches the first micro switch 50. At this time, the signal triggered by the first micro switch 50 is fed back to the push rod limit signal acquisition module 303, and the MCU of the controller 30 outputs a signal so that the output rod 20 does not accept the clockwise rotation of the motor 60. At this time, the output rod 20 waits for the signal in the MOS circuit 301 that drives the motor 60 to rotate counterclockwise. The counterclockwise rotation of the motor 60 causes the output rod 20 to move in the opposite direction of a. When the second micro switch 40 is touched, it is the same as when the first micro switch 50 is touched, and the clockwise rotation signal of the motor 60 is waited for, and the output rod 20 moves along the direction a.
[0022] Among them, Figure 2As shown, the controller 30 also includes a motor signal acquisition module 302, which is also connected to the motor 60 and is used to receive three signals of the motor 60, namely, the current, speed and position. The current signal acquisition module 302 feeds back the collected signals to the MCU of the controller 30 to realize signal monitoring of the motor 60. When the signal value of the motor 60 has problems such as current overload, the MCU can protect the motor 60 and the circuit through a buzzer alarm or other protection measures.
[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An electric push rod with a built-in control panel, comprising a push rod body (10), an output rod (20) for performing movement, and a motor assembly for driving the output rod (20), wherein the motor assembly is further provided with a motor (60) as a driving source, the push rod body (10) is further provided with a first micro switch (50) and a second micro switch (40) for controlling the limit travel of the output rod (20), and the outer side of the output rod (20) is further sleeved with a contact (201) for touching the two micro switches, characterized in that: The motor assembly is also provided with a controller (30) for controlling the motor (60), the controller (30) comprising a signal input module (304) for an external control component, a push rod limit signal acquisition module (303) for monitoring the output rod (20), and a MOS circuit (301) for controlling the forward and reverse rotation of the motor (60), and the motor assembly also comprises a motor signal acquisition module (302) for detecting the signal of the motor (60).
2. The electric push rod with a built-in control panel according to claim 1, characterized in that: The MOS circuit (301) comprises four groups of MOS tubes Q1, Q2, Q3 and Q4 forming an H-bridge circuit, wherein the MOS tubes Q1 and Q4 control the clockwise rotation of the motor (60), and the MOS tubes Q2 and Q3 control the counterclockwise rotation of the motor (60).
3. The electric push rod with a built-in control panel according to claim 1, characterized in that: The controller (30) is also connected to an external power source for supplying power to the controller (30) and the motor (60).
4. The electric linear actuator with a built-in control panel according to claim 1, characterized in that: The motor signal acquisition module (302) is used to detect three signals of the rotation speed, current and position of the motor (60). The motor signal acquisition module (302) is also connected to the MCU of the controller (30) to feed back the collected motor signal to the MCU of the controller (30).
5. The electric linear actuator with a built-in control panel according to claim 1, characterized in that: The push rod limit signal acquisition module (303) is also connected to the first micro switch (50) and the second micro switch (40); when the contact (201) contacts the first micro switch (50) and the second micro switch (40), the signal is transmitted to the push rod limit signal acquisition module (303); the push rod limit signal acquisition module (303) feeds back the limit signal to the MCU of the controller (30) for controlling the extension and retraction of the output rod (20).