Intelligent cabinet controlled by double stepping motors

Abstract

The utility model discloses an intelligent cabinet controlled by double stepping motors, relates to the technical field of intelligent control, and aims to solve the technical problems that a current intelligent cabinet has defects in the aspects of accuracy and stability of displacement control and heat dissipation intelligent control of equipment. Comprising a cabinet body and a sliding platform slidably arranged on one side of the cabinet body, a lead screw module fixedly connected with the sliding platform is arranged in the middle of one side in the cabinet body, and a sliding groove for the lead screw module to be slidably arranged is formed in the middle of the side, facing the sliding platform, of the cabinet body; two infrared limiting sensors matched with the lead screw module to achieve displacement limiting are symmetrically arranged on one side in the machine cabinet body, and through the structural design of the double stepping motors, the effects of more accurate adjustment of the position of projection equipment and effective heat dissipation of a control panel are achieved; the problems that displacement control of an existing intelligent cabinet is not accurate enough, heat dissipation is not good, and equipment stability is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent control, and more specifically to an intelligent cabinet controlled by dual stepping motors. Background Art

[0002] The smart cabinet is an auxiliary device for projection equipment. Its primary function is to extend and retract through electric drive, accurately compensating for the projector's position. If the projector is inaccurately installed, experiences displacement (such as minor vibration), or requires adjustment of the projected image's angle or position, the smart cabinet can move the projector within a certain range, ensuring the projection is accurately positioned in the desired area.

[0003] However, existing smart cabinets have numerous shortcomings, including limitations in displacement control accuracy and stability, as well as intelligent heat dissipation control. These limitations make it difficult to meet the growing demand for efficient, precise, and intelligent operation of auxiliary devices for projection equipment. To address these challenges, we propose a smart cabinet controlled by dual stepper motors. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to actual needs, and provide an intelligent cabinet controlled by a dual stepper motor to solve the technical problems of the current intelligent cabinet in terms of the accuracy and stability of displacement control and the intelligent control of the heat dissipation of the equipment itself.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an intelligent cabinet controlled by a dual stepper motor, comprising a cabinet body and a sliding platform slidably arranged on one side of the cabinet body;

[0006] A screw module fixedly connected to the sliding platform is centrally provided on one side of the cabinet body, and a sliding groove for sliding the screw module is centrally provided on one side of the cabinet body facing the sliding platform, two infrared limit sensors for cooperating with the screw module to achieve displacement limit are symmetrically provided on one side of the cabinet body, and a control board for controlling the screw module and the two infrared limit sensors is fixedly provided on one side of the cabinet body;

[0007] A main stepper motor for driving the screw module is fixedly installed on one side of the cabinet body, and a heat dissipation fan is arranged on the control board, and a sub-stepper motor is arranged in the heat dissipation fan.

[0008] Preferably, the control board includes a microprocessor unit, a communication interface module, a motor drive circuit, a power management module, a temperature monitoring system, an infrared limit detection circuit and an infrared protection circuit;

[0009] The communication interface module is electrically connected to the microprocessor unit, and the microprocessor unit is connected to the motor drive circuit and the power management module, the motor drive circuit is connected to the temperature monitoring system and the infrared limit detection circuit, the infrared limit detection circuit is connected to the infrared protection circuit, and the infrared limit detection circuit is connected to the two infrared limit sensors.

[0010] The structural design of dual stepper motors driving the screw module and the cooling fan respectively achieves more precise adjustment of the projection equipment position and effective heat dissipation of the control panel, solving the problems of existing smart cabinets with inaccurate displacement control and poor heat dissipation, which affect equipment stability.

[0011] Preferably, a transmission mechanism is provided between the screw module and the main stepping motor, and the transmission mechanism is a belt drive.

[0012] Preferably, the infrared limit sensor is a reflective infrared sensor, whose transmitting end and receiving end form a sensing area arranged on one side of the screw module, a trigger plate is fixedly provided on the slide of the screw module, and the moving route of the trigger plate passes through the sensing areas of the two infrared limit sensors.

[0013] Preferably, the motor drive circuit includes a power amplifier circuit, a pulse distribution circuit and a current feedback circuit, and the power amplifier circuit, the pulse distribution circuit and the current feedback circuit are all connected to the main stepper motor and the sub-stepper motor.

[0014] Preferably, the power management module includes a transformer, a rectifier circuit, a filter circuit and a voltage stabilizing circuit, and the transformer is connected to the rectifier circuit, the filter circuit and the voltage stabilizing circuit.

[0015] Preferably, the communication interface module includes a wired communication interface and a wireless communication module, the wired communication interface supports Ethernet communication, and the wireless communication module supports Bluetooth and Zigbee communication.

[0016] Preferably, the temperature monitoring system includes a plurality of temperature sensors and a temperature processing circuit, wherein the plurality of temperature sensors are distributed on the top of the cabinet body, and the plurality of temperature sensors are connected to the temperature processing circuit.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The utility model realizes a more precise adjustment of the position of the projection equipment and an effective heat dissipation effect of the control panel through the structural design of dual stepping motors driving the screw module and the cooling fan respectively, thus solving the problems of the existing intelligent cabinet displacement control being not precise enough and the heat dissipation being poor, which affects the stability of the equipment.

[0019] 2. The utility model also achieves a higher degree of intelligence, more stable and reliable operation, and flexible communication control by setting up a control board containing multiple functional modules, and using a belt drive to connect the screw module with the main stepping motor and the infrared limit sensor for displacement limit detection, further solving the problems of limited intelligent control functions and insufficient operational stability of existing smart cabinets. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the circuit connection of the utility model.

[0023] Description of the numbers in the figure:

[0024] 1. Cabinet body; 2. Sliding platform; 3. Screw module; 4. Control board; 5. Infrared limit sensor. DETAILED DESCRIPTION

[0025] like Figures 1 to 3 As shown, the utility model relates to an intelligent cabinet controlled by dual stepper motors, comprising a cabinet body 1 and a sliding platform 2 slidably arranged on one side of the cabinet body 1;

[0026] A screw module 3 fixedly connected to the sliding platform 2 is centrally provided on one side of the cabinet body 1, and a sliding groove for sliding the screw module 3 is centrally provided on one side of the cabinet body 1 facing the sliding platform 2. Two infrared limit sensors 5 for cooperating with the screw module 3 to achieve displacement limit are symmetrically provided on one side of the cabinet body 1, and a control board 4 for controlling the screw module 3 and the two infrared limit sensors 5 is fixedly provided on one side of the cabinet body 1;

[0027] A main stepper motor for driving the screw module 3 is fixedly installed on one side of the cabinet body 1, and a cooling fan is provided on the control board 4, and a sub-stepper motor is provided in the cooling fan.

[0028] The utility model realizes a more precise adjustment of the position of the projection device and an effective heat dissipation effect of the control board 4 through the structural design of the dual stepping motors driving the screw module 3 and the cooling fan respectively, thereby solving the problems of the existing intelligent cabinet displacement control being not precise enough and the heat dissipation being poor, which affects the stability of the equipment.

[0029] In the embodiment of the present utility model, the control board 4 includes a microprocessor unit, a communication interface module, a motor drive circuit, a power management module, a temperature monitoring system, an infrared limit detection circuit and an infrared protection circuit;

[0030] The communication interface module is electrically connected to the microprocessor unit, and the microprocessor unit is connected to the motor drive circuit and the power management module, the motor drive circuit is connected to the temperature monitoring system and the infrared limit detection circuit, the infrared limit detection circuit is connected to the infrared protection circuit, and the infrared limit detection circuit is connected to two infrared limit sensors 5.

[0031] In the embodiment of the present invention, a transmission mechanism is provided between the screw module 3 and the main stepping motor, and the transmission mechanism is a belt transmission.

[0032] In an embodiment of the present utility model, the infrared limit sensor 5 is a reflective infrared sensor, whose transmitting end and receiving end form a sensing area arranged on one side of the screw module 3. A trigger plate is fixedly arranged on the slide of the screw module 3, and the moving route of the trigger plate passes through the sensing areas of the two infrared limit sensors 5. By setting a control board 4 including multiple functional modules and using a belt drive to connect the screw module 3 with the main stepping motor and the infrared limit sensor 5 for displacement limit detection, a higher degree of intelligence, more stable and reliable operation and flexible communication control are achieved, further solving the problems of limited intelligent control functions and insufficient operation stability of existing smart cabinets.

[0033] In an embodiment of the present invention, the motor drive circuit includes a power amplifier circuit, a pulse distribution circuit and a current feedback circuit. The power amplifier circuit, the pulse distribution circuit and the current feedback circuit are all connected to the main stepper motor and the sub-stepper motor. The power amplifier circuit is used to amplify the low-power drive signal output by the microprocessor unit to meet the power requirements of the main stepper motor and the sub-stepper motor. The pulse distribution circuit accurately distributes the pulse signal to the main stepper motor and the sub-stepper motor according to the control instructions of the microprocessor unit to ensure their accurate rotation angle and speed. The current feedback circuit monitors the motor operating current in real time. When the current exceeds the preset value, it feeds back a signal to the microprocessor unit so that corresponding protection measures can be taken to prevent the motor from being overloaded and damaged.

[0034] In an embodiment of the present utility model, the power management module includes a transformer, a rectifier circuit, a filter circuit and a voltage stabilizing circuit, and the transformer is connected to the rectifier circuit, the filter circuit and the voltage stabilizing circuit. The transformer transforms the input AC voltage; the rectifier circuit converts the AC power output by the transformer into DC power; the filter circuit smoothes the rectified DC power and filters out ripples; the voltage stabilizing circuit stabilizes the filtered voltage within the required operating voltage range, providing a stable DC power supply for the microprocessor unit, the motor drive circuit, the cooling fan and other functional modules. At the same time, the power management module also has overvoltage protection, undervoltage protection and short-circuit protection functions to ensure the stable and safe power supply of the entire system.

[0035] In an embodiment of the present invention, the communication interface module includes a wired communication interface and a wireless communication module. The wired communication interface supports Ethernet communication, enabling high-speed data transmission with external network devices, and its communication protocol can be flexibly configured according to different network environments. The wireless communication module supports Bluetooth and Zigbee communication, allowing users to connect to the smart cabinet via Bluetooth or Zigbee for remote control and status monitoring. The wireless communication module also has a signal strength monitoring function. When the signal strength falls below a preset threshold, it automatically adjusts the communication parameters or issues an alarm to the user.

[0036] In an embodiment of the present invention, the temperature monitoring system includes several temperature sensors distributed within the top of the cabinet body 1 and a temperature processing circuit. The temperature processing circuit performs analog-to-digital conversion and amplification on the collected temperature data, and then transmits the processed temperature data to a microprocessor unit. The microprocessor unit adjusts the speed of the cooling fan based on the temperature data. When the temperature exceeds a set high temperature threshold, the microprocessor unit also takes additional cooling measures, such as issuing an alarm or temporarily reducing the operating power of the equipment.

[0037] Working principle: This embodiment provides an intelligent cabinet controlled by a dual stepper motor. During use, when the position of the projection device needs to be adjusted, the control board 4 receives the corresponding control instruction. The microprocessor unit in the control board 4 sends a pulse signal to the main stepper motor through the motor drive circuit according to the instruction information. After receiving the pulse signal, the rotor of the main stepper motor begins to rotate a certain angle according to the distribution of the pulse distribution circuit, and transmits power to the screw module 3 through the belt drive. The screw of the screw module 3 begins to rotate under the drive of the main stepper motor, causing the sliding platform 2 to move linearly along the sliding groove of the cabinet body 1, thereby driving the projection device to adjust its position. In this process, the infrared limit sensor 5 monitors the slide position of the screw module 3 in real time. When the trigger plate on the slide enters the sensing area of ​​the infrared limit sensor 5, the infrared limit detection circuit transmits a signal to the microprocessor unit. The microprocessor unit determines whether the preset displacement limit is reached based on this signal. If it is reached, the main stepper motor is controlled to stop rotating to prevent excessive displacement from causing damage to the equipment.

[0038] At the same time, the temperature monitoring system on the control board 4 monitors the internal temperature in real time through the temperature sensors distributed on the top of the cabinet body 1. When the temperature rises to a certain level, the temperature processing circuit feeds back the signal to the microprocessor unit. The microprocessor unit starts the sub-stepper motor through the motor drive circuit. The sub-stepper motor drives the cooling fan to rotate, dissipating heat from the control board 4 and ensuring that the electronic components on the control board 4 can operate stably under a suitable temperature environment. The communication interface module of the control board 4 supports multiple communication methods such as Ethernet, Bluetooth and Zigbee communication, and can easily exchange data with external devices or control systems to realize remote or near-field intelligent control operations, such as receiving picture adjustment instructions from the projection equipment control system, or transmitting the status information of the smart cabinet itself to the monitoring system.

[0039] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A smart cabinet controlled by dual stepper motors, characterized in that: It comprises a cabinet body (1) and a sliding platform (2) slidably arranged on one side of the cabinet body (1); A screw module (3) fixedly connected to the sliding platform (2) is centrally provided on one side of the cabinet body (1), and a sliding groove for sliding the screw module (3) is centrally provided on one side of the cabinet body (1) facing the sliding platform (2), two infrared limit sensors (5) for cooperating with the screw module (3) to achieve displacement limit are symmetrically provided on one side of the cabinet body (1), and a control panel (4) for controlling the screw module (3) and the two infrared limit sensors (5) is fixedly provided on one side of the cabinet body (1); A main stepping motor for driving the screw module (3) is fixedly mounted on one side of the cabinet body (1), and a cooling fan is provided on the control panel (4), and a sub-stepping motor is provided in the cooling fan.

2. The dual-stepping motor controlled intelligent cabinet according to claim 1, characterized in that: The control board (4) includes a microprocessor unit, a communication interface module, a motor drive circuit, a power management module, a temperature monitoring system, an infrared limit detection circuit, and an infrared protection circuit; The communication interface module is electrically connected to the microprocessor unit, and the microprocessor unit is connected to the motor drive circuit and the power management module, the motor drive circuit is connected to the temperature monitoring system and the infrared limit detection circuit, the infrared limit detection circuit is connected to the infrared protection circuit, and the infrared limit detection circuit is connected to the two infrared limit sensors (5).

3. The dual-stepping motor controlled intelligent cabinet according to claim 1, characterized in that: A transmission mechanism is provided between the screw module (3) and the main stepping motor, and the transmission mechanism is a belt transmission.

4. The dual-stepping motor controlled intelligent cabinet according to claim 1, characterized in that: The infrared limit sensor (5) is a reflective infrared sensor, and its transmitting end and receiving end form a sensing area arranged on one side of the screw module (3). A trigger plate is fixedly arranged on the slide of the screw module (3), and the moving path of the trigger plate passes through the sensing areas of the two infrared limit sensors (5).

5. The dual-stepping motor controlled intelligent cabinet according to claim 2, characterized in that: The motor driving circuit includes a power amplifier circuit, a pulse distribution circuit and a current feedback circuit, and the power amplifier circuit, the pulse distribution circuit and the current feedback circuit are all connected to the main stepping motor and the sub-stepping motor.

6. The dual-stepping motor controlled intelligent cabinet according to claim 2, characterized in that: The power management module includes a transformer, a rectifier circuit, a filter circuit and a voltage stabilizing circuit, and the transformer is connected to the rectifier circuit, the filter circuit and the voltage stabilizing circuit.

7. The dual-stepping motor controlled intelligent cabinet according to claim 2, characterized in that: The communication interface module includes a wired communication interface and a wireless communication module. The wired communication interface supports Ethernet communication, and the wireless communication module supports Bluetooth and Zigbee communication.

8. The dual-stepping motor controlled intelligent cabinet according to claim 2, characterized in that: The temperature monitoring system comprises a plurality of temperature sensors and a temperature processing circuit, wherein the plurality of temperature sensors are distributed on the top of the cabinet body (1), and the plurality of temperature sensors are connected to the temperature processing circuit.

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