A control cabinet door

Abstract

The application provides a kind of control cabinet door, including control cabinet body and hinged in the inner door of the control cabinet body, the inner door frame upper end is equipped with proximity detection switch, the control cabinet body is equipped with storage rack, the storage rack is connected with driving motor, the proximity detection switch is connected with the driving motor. Through the cooperation of multi-module such as proximity switch, human body induction, infrared pair, combined with the logic control of chip set, the automatic unfolding / withdrawal, height adjustment and state locking of the control cabinet storage rack are realized, and the problem of inconvenient operation of traditional storage plate is solved. At the same time, the voice prompt and protection function improve the safety and ease of use of the equipment, and are suitable for power distribution room, equipment field and other scenes of control cabinet debugging work.

Description

Technical Field

[0001] This application relates to the field of power electronics technology, and in particular to a control cabinet door. Background Technology

[0002] Central control cabinets, which integrate programmable logic controllers and supporting electrical components, are widely used in power distribution rooms, equipment sites, and other similar environments. During the commissioning of central control cabinets, it is necessary to use computers and other commissioning equipment to run the commissioning software; therefore, a stable platform is essential to house these devices.

[0003] Currently, the storage panels equipped on the doors of traditional control cabinets have obvious defects: First, they require manual operation to unfold and retract, which is cumbersome and can easily distract staff, especially during debugging. Second, they lack the function of detecting the door status and cannot automatically determine whether the storage panel needs to be kept unfolded based on the door status. Often, the storage panel remains unfolded when not in use or automatically retracts when needed, which seriously affects debugging efficiency and convenience.

[0004] Therefore, there is an urgent need for a control cabinet door that integrates detection and adjustment functions to solve the problems of inconvenient operation, inability to automatically adjust, and lack of status judgment of traditional shelves. Utility Model Content

[0005] This application provides a control cabinet door to solve the above problems.

[0006] This application provides a control cabinet door, including a control cabinet body and an inner door hinged to the control cabinet body. A proximity detection switch is installed on the upper end of the inner door frame. A shelf is provided inside the control cabinet body, and a drive motor is connected to the shelf. The proximity detection switch and the drive motor are connected through an SA8321 chip. The output signal of the proximity detection switch is transmitted to the INA and INB pins of the SA8321 chip. The OUTA and OUTB pins of the SA8321 chip are respectively connected to the forward and reverse control terminals of the drive motor.

[0007] In one implementation of this application, an outer door hinged to the main body of the control cabinet is also included, and an observation window is provided on the surface of the outer door.

[0008] In one implementation of this application, the inner door surface is provided with a display screen, operation buttons and indicator lights, and the operation buttons send height adjustment commands to the drive motor through the I / O port of the main control chip STC8H1K16.

[0009] In one implementation of this application, a human body sensing module is also installed on the upper end of the inner door frame. The human body sensing module is connected to the drive motor through a SYN6288 chip, and the trigger signal of the human body sensing module is transmitted to the XIN and XOUT pins of the SYN6288 chip.

[0010] In one implementation of this application, infrared beam modules are respectively installed on the left and right ends of the inner side of the central control cabinet body. The infrared beam modules are connected to the drive motor through an LM2596S-5.0 chip, and the output signal of the infrared beam modules is transmitted to the FB pin of the LM2596S-5.0 chip.

[0011] In one implementation of this application, a telescopic module is installed on the inner side of the inner door. The telescopic module is connected to the drive motor through a main control chip STC8H1K16, and the telescopic module is connected to the INTB pin of the STC8H1K16.

[0012] In one implementation of this application, the central control cabinet body is provided with an external speaker, the external speaker is connected to an LM4950 chip, the LM4950 chip is installed in the central control cabinet body, and the LM4950 chip receives the voice signal transmitted by the SYN6288 chip through the VOUTA and VOUTB pins.

[0013] In one implementation of this application, the control cabinet body is equipped with an SA8321 chip. The INA and INB pins of the SA8321 chip are connected to a proximity detection switch, the OUTA and OUTB pins of the SA8321 chip are connected to a drive motor, and the VM pin of the SA8321 chip is connected to a 12V power supply.

[0014] In one implementation of this application, the central control cabinet body is equipped with an LM1117 voltage regulator chip, which is connected to the power supply line of the central control cabinet. The OUT pin of the LM1117 voltage regulator chip outputs a stable 3.3V voltage. The central control cabinet body is equipped with a programmable logic controller, which adopts an STC8H1K16 chip, and its I / O port receives input signals from each module.

[0015] The control cabinet door provided in this application has the following beneficial effects:

[0016] (1) The automated operation of the shelving unit has been realized, which improves the convenience of debugging: the drive motor is controlled by the proximity detection switch and the SA8321 chip, and the shelving unit is automatically unfolded when the inner door is opened; the height adjustment is realized by sending instructions through the STC8H1K16 chip via the operation button, which replaces the traditional manual operation, solves the problems of fixed position and inconvenient adjustment, and reduces the operating burden of debugging personnel.

[0017] (2) Multi-module collaboration ensures operational safety and enhances equipment reliability: The SA8321 chip has overcurrent, undervoltage, short circuit and overtemperature protection functions to ensure the safe operation of the drive motor; the infrared beam module controls the shelf to automatically return to its position when there is no equipment, avoiding ineffective deployment; the human body sensing module triggers voice reminders through the SYN6288 and LM4950 chips to improve operational safety.

[0018] (3) It can flexibly adapt to the needs of multiple scenarios and improve its practicality: It supports automatic and manual dual control modes. The telescopic module realizes the normally open / normally closed locking of the shelf through the STC8H1K16 chip, which meets the needs of long-term placement of equipment or forced shutdown. It is suitable for scenarios such as power distribution room and equipment site. It can intelligently adjust according to the status of personnel approaching (human body sensing) and equipment placement (infrared beam) to adapt to diverse debugging scenarios.

[0019] (4) By integrating status monitoring and stable power supply, usability and stability are improved: the inner door display screen and indicator lights provide real-time feedback on the equipment status, and the outer door observation window makes it easy to view intuitively; the LM1117 voltage regulator chip provides a stable 3.3V voltage, and the STC8H1K16 main control chip coordinates the work of each module to ensure stable system operation and reduce operation complexity. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0021] Figure 1 A schematic diagram of a control cabinet door structure provided in an embodiment of this application;

[0022] Figure 2 Pin diagram of the U5SA8321 chip provided in the embodiments of this application;

[0023] Figure 3 Pin diagram of IC1LM2596S-5.0 chip provided for embodiments of this application;

[0024] Figure 4 Pin diagram of the U1STC8H1K16 chip provided in the embodiments of this application;

[0025] Figure 5 Pin diagram of the U10SYN6288 chip provided in this application embodiment;

[0026] Figure 6 Pin diagram of the U11LM4950 chip provided in the embodiments of this application;

[0027] Figure 7 Pin diagram of the LM1117 chip provided in the embodiments of this application;

[0028] Figure 8 The electrical schematic diagram of the control cabinet door provided in the embodiments of this application.

[0029] Figure label, Figure 1 In the middle: 1-Human body sensing module, 2-Infrared beam module, 3-Proximity detection switch, 4-Telescopic module, 5-Shelf, 6-Drive motor, 7-External speaker. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] This application provides a control cabinet door. The technical solution proposed in this application will be described in detail below with reference to the accompanying drawings.

[0032] This application provides a central control cabinet door, such as... Figure 1 As shown, the main components include the control cabinet body, an inner door hinged to the body, and an outer door; the inner door surface is equipped with a display screen, operation buttons, and indicator lights for real-time display of equipment status and receiving manual operation commands; the outer door surface is equipped with an observation window for easy observation of the basic situation inside the cabinet without opening the door.

[0033] The core components inside the cabinet include: a human body sensor module 1, installed on the upper part of the cabinet frame, used to detect whether personnel are approaching the control cabinet; an infrared beam module 2, symmetrically installed on the left and right sides of the inner side of the control cabinet body, used to detect whether debugging equipment is placed on the shelf 5; a proximity detection switch 3, installed on the upper part of the inner door frame, used to detect whether the inner door is fully open; a telescopic module 4, installed on the inner side of the inner door, providing manual control options for debugging personnel, which can force the shelf to remain in the extended or retracted state; a shelf 5, used to place debugging equipment, which can be adjusted vertically and powered by a drive motor 6; a drive motor 6, mechanically connected to the shelf 5, receiving electrical signals to control forward and reverse rotation, realizing the extension / retraction and height adjustment of the shelf; and an external speaker 7, used to issue voice prompts or warning signals.

[0034] The core modules and chip functions are described below:

[0035] 1. Proximity detection switch 3 and SA8321 chip (U5): Proximity detection switch 3 detects whether the inner door is fully open through electromagnetic induction. When the inner door is open, its output signal is transmitted to INA (pin 1) and INB (pin 2) of SA8321 chip (U5). SA8321 chip (U5) Figure 2 This is a motor driver chip. VM (pin 4) is connected to a 12V power supply, and OUTA (pin 8) and OUTB (pin 5) are connected to the forward and reverse control terminals of the drive motor 6, respectively. Upon receiving a signal from the proximity switch, the chip controls the voltage output of OUTA and OUTB to drive the motor to rotate forward (shelf unfolds) or reverse (shelf retracts), thus achieving height adjustment. Simultaneously, the chip features overcurrent, undervoltage, short circuit, and overtemperature protection functions to ensure safe motor operation.

[0036] 2. Infrared beam module 2 and LM2596S-5.0 chip (IC1): Infrared beam module 2 consists of a transmitter and a receiver. When debugging equipment is placed on shelf 5, the equipment blocks the infrared light, and the receiver outputs a low level; when no equipment is present, the receiver outputs a high level. This signal is transmitted to the LM2596S-5.0 chip (IC1). Figure 3 The chip's FB pin (pin 4) is connected to the power supply voltage, the IN pin (pin 1) is connected to the power supply voltage, and the OUT pin (pin 2) outputs a stable 5V voltage. If no device is detected for more than 5 seconds (the receiver remains at a high level), the chip sends a reverse signal to the drive motor 6 through internal logic control, so that the shelf automatically returns to its original position.

[0037] 3. Human body sensing module 1, SYN6288 chip (U10) and LM4950 chip (U11). Human body sensing module 1 adopts the principle of infrared pyroelectric sensing. When it detects a person approaching, it outputs a trigger signal, which is transmitted to the SYN6288 chip (U11). Figure 5 The XIN (pin 24) and XOUT (pin 25) pins of the SYN6288 are used for voice synthesis. After the VDDIO0 (pin 2), VDDIO1 (pin 6), and VDDPP (pin 10) pins are connected to the operating voltage, they communicate with the main control chip via SOUNDRX (pin 27) and SOUNDTX (pin 28) to generate voice prompt signals (such as "shelf is unfolded"), which are then transmitted to the LM4950 chip via VOUTA (pin 3) and VOUTB (pin 4). Figure 6 The LM4950 is an audio amplifier chip that amplifies the voice signal to drive the external speaker 7 to produce sound.

[0038] 4. Main control chip STC8H1K16(U1), STC8H1K16 ( Figure 4The core control unit is connected to VCC (power supply pin) with a 5V voltage and Gnd (pin 12) grounded. Its I / O ports such as P3.6 (pin 19) receive input signals from modules such as proximity switches, human body sensors, and infrared beam detectors. After processing by internal program logic, it outputs control commands to chips such as SA8321 and SYN6288 to coordinate the work of each module.

[0039] 5. LM1117 voltage regulator chip, LM1117 ( Figure 7 The input terminal connects to the unstable voltage after the 220V / 380V power conversion of the central control cabinet, while the output terminal (pin 2) provides a stable 3.3V voltage to power low-voltage chips such as STC8H1K16, ensuring the stable operation of the control system.

[0040] 6. Telescopic module 4: This module is a manual control switch, which is connected to the INTB pin (pin 6) of the main control chip STC8H1K16 via a hard wire. When the "normally open" button is pressed, the chip ignores other automatic detection signals and controls the shelf to remain extended. When the "normally closed" button is pressed, the shelf is forcibly retracted and no longer responds to automatic trigger signals until the next manual reset.

[0041] Figure 8 The diagram below shows the electrical components of the control cabinet door in this embodiment. The control cabinet door's workflow is divided into the following four scenarios:

[0042] 1. Inner door opening triggers shelf adjustment. When the operator opens the inner door, the proximity detection switch 3 triggers a signal, which is transmitted to the SA8321 chip (U5). The chip drives the motor 6 to rotate forward, and the shelf 5 automatically unfolds. If height adjustment is required, a command can be sent through the inner door operation button. The main control chip (U1) controls the motor to rotate forward and backward to achieve fine-tuning of the height.

[0043] 2. Shelf in normally open state. If the equipment needs to be placed for a long time, the commissioning personnel can press the "normally open" button of the telescopic module 4. After receiving the signal, the main control chip (U1) controls the SA8321 chip (U5) to lock the motor in the forward rotation state. Even if the infrared beam module 2 does not detect the equipment, the shelf will remain extended.

[0044] 3. Person Approach Trigger Alert. When the inner door is opened and the human body sensor module 1 detects a person approaching, the signal is transmitted to the SYN6288 chip (U10). The chip generates a voice prompt (such as "Please note the status of the shelving"), which is amplified by the LM4950 chip (U11) and played through the external speaker 7. At the same time, the main control chip (U1) controls the display indicator light to light up, indicating that the equipment is in working condition.

[0045] 4. Shelf normally closed state. Press the "normally closed" button on telescopic module 4, and the main control chip (U1) sends a reversal signal to the SA8321 chip (U5), and the shelf retracts; thereafter, even if the inner door is opened and a person is detected approaching, the main control chip ignores the trigger signal, and the shelf remains closed until the "normally open" button is pressed again to reset.

[0046] This application achieves automatic unfolding / retraction, height adjustment, and status locking of the central control cabinet shelves through the coordinated operation of multiple modules such as proximity switches, human body induction, and infrared beams, combined with the logic control of the chipset. This solves the problem of inconvenient operation of traditional shelves. At the same time, voice prompts and protection functions improve the safety and ease of use of the equipment, making it suitable for central control cabinet commissioning in various scenarios such as power distribution rooms and equipment sites.

[0047] The various embodiments in this application are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the device embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0048] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0049] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A control cabinet door, comprising an inner door hinged to the control cabinet body, characterized in that, A proximity detection switch is installed on the upper part of the inner door frame. A shelf is provided inside the central control cabinet. The shelf is connected to a drive motor. The proximity detection switch and the drive motor are connected through an SA8321 chip. The output signal of the proximity detection switch is transmitted to the INA and INB pins of the SA8321 chip. The OUTA and OUTB pins of the SA8321 chip are respectively connected to the forward and reverse control terminals of the drive motor.

2. A control cabinet door according to claim 1, characterized in that, It also includes an outer door hinged to the main body of the control cabinet, and the surface of the outer door is provided with an observation window.

3. A control cabinet door according to claim 1, characterized in that, The inner door surface is equipped with a display screen, operation buttons and indicator lights. The operation buttons send height adjustment commands to the drive motor through the I / O port of the main control chip STC8H1K16.

4. A control cabinet door according to claim 1, characterized in that, A human body sensing module is also installed on the upper end of the inner door frame. The human body sensing module is connected to the drive motor through the SYN6288 chip. The trigger signal of the human body sensing module is transmitted to the XIN and XOUT pins of the SYN6288 chip.

5. A control cabinet door according to claim 1, characterized in that, Infrared beam modules are installed on the left and right sides of the inner side of the control cabinet. The infrared beam modules are connected to the drive motor through an LM2596S-5.0 chip. The output signal of the infrared beam modules is transmitted to the FB pin of the LM2596S-5.0 chip.

6. A control cabinet door according to claim 1, characterized in that, A telescopic module is installed on the inner side of the inner door. The telescopic module is connected to the drive motor through the main control chip STC8H1K16. The telescopic module is connected to the INTB pin of STC8H1K16.

7. A control cabinet door according to claim 1, characterized in that, The central control cabinet is equipped with an external speaker, which is connected to an LM4950 chip. The LM4950 chip is installed inside the central control cabinet and receives the voice signal transmitted by the SYN6288 chip through the VOUTA and VOUTB pins.

8. A control cabinet door according to claim 1, characterized in that, The control cabinet contains an SA8321 chip. The INA and INB pins of the SA8321 chip are connected to a proximity detection switch, the OUTA and OUTB pins of the SA8321 chip are connected to a drive motor, and the VM pin of the SA8321 chip is connected to a 12V power supply.

9. A control cabinet door according to claim 1, characterized in that, The central control cabinet is equipped with an LM1117 voltage regulator chip, which is connected to the power supply line of the central control cabinet. The OUT pin of the LM1117 voltage regulator chip outputs a stable 3.3V voltage. The central control cabinet is also equipped with a programmable logic controller, which uses an STC8H1K16 chip. Its I / O ports receive input signals from each module.

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