Electrical cabinet capable of being automatically adjusted according to environment in cabinet

Abstract

The utility model discloses an electrical cabinet capable of being automatically adjusted according to the environment in the cabinet, which is connected with a temperature and humidity sensor, a photosensitive sensor, a buzzer and a fingerprint identification module through a singlechip, detects the temperature, humidity and illumination intensity in the cabinet in real time, and realizes a fingerprint authentication function; when the environment in the cabinet is abnormal or fingerprint identification fails for multiple times, the buzzer can buzz to give an alarm, and an alarm signal is sent to an external monitoring system. And the start and stop of the fan in the cabinet can be automatically controlled by the singlechip according to the information of the temperature sensor. And meanwhile, the Ethernet controller and the RJ45 female seat are added, so that terminal equipment among different cabinets can be conveniently interconnected and can be accessed to an industrial network, and the state of each electrical cabinet can be monitored at any time. The illumination form and layout in the cabinet are further changed, the single-chip microcomputer is connected with the human body induction module, and the automatic illumination function is achieved in combination with the photosensitive sensor. According to the utility model, the safety, intelligence and energy-saving performance of the electrical cabinet are significantly improved.

Description

TECHNICAL FIELD

[0002] The utility model belongs to and electrical equipment technical field, it is an electrical cabinet that automatic regulation is according to cabinet environment specifically. BACKGROUND

[0004] In the installation process of electrical equipment, electrical control cabinet is installed in the field, mechanical equipment or special electrical room, so that it can save installation cost and reduce the complexity of installation process, and can also reduce the harsh environment encountered by electrical cabinet. However, the environment of industrial site is different, some are ideal, but more of the site environment is relatively harsh, such as high temperature, dust, water vapor, etc. In addition, with the increasing popularity of new technologies such as frequency conversion and speed regulation, and in order to meet various control needs, the use of heating elements in electrical control cabinet is also more and more common, such as frequency converter, solid state relay, transformer, various rectifier modules, etc. In order to ensure the normal work of each component in electrical control cabinet, it is necessary to use various means to ensure that the electrical control cabinet maintains a certain environment.

[0005] At present, the design of electrical cabinet is the adjustment of mechanical structure or the distinction of safety level, and it is not combined with intelligent control. The electrical cabinet does not have temperature and humidity detection, and each cabinet is not interconnected. The use mode of the existing fan is to keep the fan open for a long time by the switch control in daily life. The lighting mode is to install a limit switch on the cabinet door, which is connected to the lamp tube on the top of the cabinet, and the light is on when the door is open and the light is off when the door is closed. The cabinet lock mode is mechanical structure fastening, and the key is locked. This method is unified for each cabinet, and the key is used for each cabinet. There is a safety problem for the equipment in the cabinet. SUMMARY

[0007] In view of the above problems, the utility model provides an electrical cabinet that can automatically adjust according to the environment in the cabinet, which improves the safety, intelligence and energy saving of the electrical cabinet from multiple angles.

[0008] The utility model discloses an electrical cabinet that can automatically adjust according to the environment in the cabinet, which comprises a terminal module composed of a single-chip microcomputer, a download circuit, a crystal oscillator circuit, a buzzer, a display screen, control buttons, a fingerprint identification module, an Ethernet controller, an RJ45 female seat and an external terminal strip, and a temperature sensor, a humidity sensor, a photosensitive sensor and a human body sensing module.

[0009] The single-chip microcomputer is connected with the buzzer, the display screen, the control buttons and the fingerprint identification module, and is connected with the Ethernet controller through the RJ45 female seat. The single-chip microcomputer is also connected with the external terminal strip, and the signal input terminals of the external terminal strip are connected with the temperature sensor, the humidity sensor, the photosensitive sensor and the human body sensing module through signal lines. The signal output terminals are connected with an external monitoring system, a fan of the electrical cabinet, lighting equipment and a door lock.

[0010] The microcontroller is connected to a temperature sensor, a humidity sensor, and a photosensitive sensor, which can detect the temperature, humidity, and light intensity inside the cabinet in real time, and realize the automatic control of the fan inside the cabinet based on the temperature and humidity information.

[0011] The microcontroller is connected to the human body sensing module, which, together with the photosensitive sensor, enables the automatic lighting function of the lighting equipment inside the cabinet.

[0012] The microcontroller connects to the Ethernet controller and RJ45 female connector to build an embedded network device, which facilitates the interconnection of terminal devices between different cabinets and can also connect them to the industrial network to monitor the status of each electrical cabinet at all times.

[0013] The microcontroller is connected to a buzzer, which sounds an alarm when there is an abnormal environment inside the cabinet.

[0014] The microcontroller is also connected to a fingerprint recognition module to verify the identity of the person opening the door. If multiple verification attempts fail, an alarm will sound.

[0015] Meanwhile, lighting equipment is installed inside the electrical cabinet. The lighting equipment uses light strips, which are arranged along the front edge of the left, right, upper and lower side walls of the cabinet and the cable trays inside the cabinet.

[0016] The advantages of this utility model are: through improvements in environmental monitoring, network interconnection, fingerprint recognition, lighting optimization and intelligent fan control, the safety, intelligence and energy efficiency of the electrical cabinet are significantly improved, making it suitable for industrial environments that require high safety and efficient management. BRIEF DESCRIPTION OF DRAWINGS

[0018] FIG. 1 This is a structural block diagram of an electrical cabinet that can automatically adjust according to the internal environment of the cabinet according to the present invention;

[0019] FIG. 2 This is a schematic diagram of the installation position of the light strip in the electrical cabinet that can automatically adjust according to the environment inside the cabinet according to the present invention. DETAILED DESCRIPTION

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] This utility model of an electrical cabinet includes a terminal module installed on the inner wall of the cabinet door. The terminal module consists of a microcontroller 1, a download circuit 2, a crystal oscillator circuit 3, a buzzer 4, a display screen 5, control buttons 6, a fingerprint recognition module 7, an Ethernet controller 8, an RJ45 female connector 9, and an external terminal block 10, integrated on a PCB board and fixed to the inner wall of the cabinet door after being encapsulated in a housing. It also includes temperature sensors, humidity sensors, photosensors, and human body sensing modules installed inside the cabinet as needed.

[0023] The single-chip microcomputer 1 is connected with the download circuit 2, the crystal oscillator circuit 3, the buzzer 4, the display screen 5, the control button 6 and the fingerprint identification module 7 as the control core, and is connected with the Ethernet controller 8 through the RJ45 female seat 9. The single-chip microcomputer 1 is also connected with the external terminal row 10, and the signal input terminals of the external terminal row 10 are connected with the temperature sensor, the humidity sensor, the photosensitive sensor and the human body sensing module through signal lines respectively; the signal output terminals are connected with the external monitoring system and the fan, the light strip and the door lock of the electrical cabinet respectively.

[0024] The download circuit 2 is used for programming or debugging the program code to the single-chip microcomputer 1.

[0025] The crystal oscillator circuit 3 is used for providing a stable clock signal for the single-chip microcomputer 1.

[0026] The display screen 5 and the control button 6 are embedded and installed in the opening of the electrical cabinet door when the overall terminal packaging shell is installed; the display screen 5 is used for displaying the current time and the detection value; the control button 6 includes a SET key for entering the parameter setting interface, and multiple presses can switch different parameters (including the temperature alarm threshold, the humidity alarm threshold, the current time (year, month, day, hour, minute and second), the cabinet dimness threshold). The up button is used for up-regulating the parameter; the down button is used for down-regulating the parameter; the mode switching button is used for switching the manual and automatic modes; the confirm / mute button is used for confirming the adjustment parameter during the parameter setting and realizing the buzzer mute during the non-parameter setting; the display switching button is used for switching the display content of the display screen, which is convenient for checking the parameters.

[0027] The transmission and reception differential signal lines of the Ethernet controller 8 are connected to the corresponding pins of the RJ45 female seat 9. The Ethernet controller and the single-chip microcomputer 1 can construct an embedded network device, which is responsible for the transmission and reception of data, realizes the network communication function, facilitates the interconnection between terminals and the access of terminal devices to the industrial network, and facilitates the centralized management and control of the cabinet conditions.

[0028] The fingerprint identification module 7 is used for fingerprint identification, and can send a verification success signal to the single-chip microcomputer 1 after the fingerprint comparison is successful, and further sends a cabinet door opening signal to the motor driver by the single-chip microcomputer 1, so that the motor of the door lock is controlled to open the cabinet door by the motor driver. When the fingerprint verification fails, a verification failure signal is sent to the single-chip microcomputer 1, the buzzer is controlled to issue a buzzer warning by the single-chip microcomputer 1, and an error is prompted on the display screen 5.

[0029] The temperature sensor is used for detecting the temperature in the electrical cabinet in real time, is installed near the heating element or in the center of the cabinet, and can send the temperature information in the electrical cabinet to the single-chip microcomputer 1. The single-chip microcomputer 1 processes and judges the temperature signal, and controls the start and stop of the fan of the electrical cabinet according to the judgment result. The start and stop control of the fan can be switched between manual and automatic modes through the mode switching button. In the automatic mode, the single-chip microcomputer 1 compares the temperature information with the safety temperature threshold set in the single-chip microcomputer 1. If the detected temperature is higher than the set temperature, the single-chip microcomputer 1 sends a start command to the fan motor to start the fan. When the temperature information received by the single-chip microcomputer 1 is lower than the set safety temperature threshold, the single-chip microcomputer 1 sends a shutdown command to the fan motor. In the manual mode, the single-chip microcomputer 1 directly sends a start command to the fan motor to control the fan to run for a long time. When the single-chip microcomputer 1 judges that the temperature signal is higher than the set temperature alarm threshold, it sends a high-temperature alarm signal to the buzzer 4 and the external monitoring system. The buzzer alarm and the high-temperature alarm information displayed on the external monitoring system.

[0030] The humidity sensor is installed at any position in the electrical cabinet for detecting the humidity in the electrical cabinet, and can send the humidity information to the single-chip microcomputer 1. The single-chip microcomputer 1 processes and judges the humidity signal. When the humidity signal is greater than the humidity alarm threshold set in the single-chip microcomputer 1, the single-chip microcomputer 1 sends a high-humidity alarm signal to the external monitoring system, and displays the high-humidity alarm information on the external monitoring system.

[0031] The light-sensitive sensor is arranged in the area where the debugging and maintenance personnel operate the electrical cabinet. The human body sensing module is installed at the top of the electrical cabinet. Through the light-sensitive sensor and the human body sensing module, the light can be turned on when the operating area of the electrical cabinet is dim and there is someone near the electrical cabinet. The lighting device used is a soft and slender light strip, which replaces the original lamp tube commonly used in the electrical cabinet. The flexible and slender light strip is arranged along the edge of the cabinet body and the wire slot, as shown in FIG. 2 The light-sensitive sensor is used for detecting the brightness in the cabinet, and can convert the light signal into an electric signal and send it to the single-chip microcomputer 1. The human body sensing module can be used to detect whether there is a person at the door of the electrical cabinet. The human body sensing module can sense the infrared radiation in the surrounding environment and detect the microwave radiation when the human body moves, and can convert the received radiation into an electric signal and send it to the single-chip microcomputer 1.

[0032] Thus when the single-chip microcomputer 1 receives the electric signals sent by the photosensitive sensor and the human body sensing module at the same time, the single-chip microcomputer judges the light dark condition in the detection cabinet according to the set dimness threshold value, and controls the light band to light up when the detection is lower than the dimness threshold value. When the detection personnel leaves, the light band is controlled to be turned off by the single-chip microcomputer 1, which can effectively reduce the consumption of electric energy and achieve the effect of energy saving. The opening and closing control of the light can be switched between manual and automatic modes through the mode switching button; the automatic mode is as described above; the manual mode is to judge the opening and closing of the light according to the opening and closing of the electrical cabinet door. After the fingerprint recognition module 7 successfully recognizes the fingerprint, the single-chip microcomputer controls the light band to light up according to the received motor driving signal as the criterion for opening the cabinet door; when the single-chip microcomputer 1 receives the closing signal of the cabinet door lock feedback, the light band is controlled to be turned off.

[0033] The utility model discloses electrical cabinet from the electrical cabinet environmental stability angle to the electrical cabinet control and auxiliary equipment, can real-time detection cabinet temperature humidity and illumination intensity, and the abnormal environment in the cabinet can alarm in the first time, avoid the danger in the cabinet and nobody knows, and the danger further expands. And increase the ethernet controller and RJ45 female seat, the terminal equipment interconnection of different cabinets is convenient while can be connected into industrial network, and it is convenient to monitor the state of each electrical cabinet at all times, and increase fingerprint identification function, confirm the identity of the opening personnel, prevent the danger caused by the illegal operation of non-professional personnel opening the cabinet door, also prevent the loss of the expensive electrical equipment in the cabinet and find problems. When the abnormality occurs (abnormal temperature and humidity in the cabinet or continuous fingerprint identification error for many times), the operator can be warned in the first time. Further change the form and layout of the lighting in the cabinet, avoid the large amount of shadow produced by the wire slot shielding when the fluorescent tube illuminates to facilitate the daily work of maintenance and repair personnel. Change the fan operation mode of the electrical cabinet, avoid large quantity long time operation, make the fan start according to the demand under the condition of nobody control, reduce the power consumption to a certain extent.

Claims

1. An electrical cabinet which can be automatically adjusted in accordance with the environment in the cabinet, characterized by: It includes a terminal module consisting of a microcontroller, a download circuit, a crystal oscillator circuit, a buzzer, a display screen, control buttons, a fingerprint recognition module, an Ethernet controller, an RJ45 female connector, and an external terminal block, as well as a temperature sensor, a humidity sensor, a photosensor, and a human body sensing module. The microcontroller is connected to the download circuit, crystal oscillator circuit, buzzer, display screen, control buttons, and fingerprint recognition module, and is connected to the Ethernet controller via an RJ45 female connector. The microcontroller is also connected to an external terminal block, whose signal input terminals are connected to a temperature sensor, humidity sensor, photosensitive sensor, and human body sensing module via signal lines. The signal output terminals are connected to an external monitoring system and the fan, lighting equipment, and door lock of the electrical cabinet.

2. The electrical cabinet that can automatically adjust according to the internal environment as described in claim 1, characterized in that: The terminal module is encapsulated in a shell and then fixedly installed on the inner wall of the electrical cabinet door; at the same time, the display screen and control buttons are embedded in the opening on the electrical cabinet door.

3. The electrical cabinet as described in claim 1, characterized in that: The control buttons include a SET button for accessing the interface for setting various parameters; an up button for adjusting parameters; a down button for adjusting parameters; a mode switch button for switching between manual and automatic modes; a confirmation / mute button for confirming parameter adjustments during parameter setting and for silencing the buzzer during non-parameter setting; and a display switch button for changing the content displayed on the screen.

4. The electrical cabinet that can automatically adjust according to the internal environment as described in claim 1, characterized in that: Temperature sensors are installed inside the electrical cabinet near the heating element or in the center of the cabinet; photosensitive sensors are placed in the area where maintenance personnel operate the electrical cabinet; and human body sensing modules are installed at the top of the cabinet.

5. The electrical cabinet as described in claim 1, characterized in that: The lighting equipment uses light strips, which are arranged along the front edge of the inner walls of the left, right, upper and lower side walls of the cabinet and the cable trays inside the cabinet.

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