Electronic signboard and maintenance marking system

Abstract

The utility model discloses an electronic signboard and a maintenance marking system, which are mainly applied to a power equipment maintenance scene, relates to the technical field of screen cabinet signboards, and aims to solve the problems that the electronic signboard shields sight and affects operators to observe equipment in a cabinet. The electronic signboard is applied to a screen cabinet serving as power equipment, the screen cabinet comprises a cabinet door provided with a transparent panel, and the electronic signboard comprises a mounting shell, a circuit board and a perspective screen. The mounting shell is connected with a first surface of the cabinet door, and the first surface faces the interior of the screen cabinet; the circuit board is connected to the mounting shell and is used for receiving dynamically updated screen display information; the transparent screen is electrically connected with the circuit board and connected with the installation shell, and the display face of the transparent screen faces the transparent panel and is used for perspective observation of the electrical devices in the screen cabinet and dynamic display of working information of the screen cabinet. Therefore, the method has the advantages of improving the reliability, convenience and operation efficiency of the maintenance work of the power equipment.

Description

Technical Field

[0001] This application relates to the technical field of display cabinet signs, and more specifically, to an electronic sign and maintenance sign system, which is mainly used in power equipment maintenance scenarios. Background Technology

[0002] In the field of power equipment, substations are filled with numerous control cabinets. These cabinets are indistinguishable in color and shape, making them difficult for operators to differentiate. When maintenance is required on a particular control cabinet, the power system must be shut down to that cabinet, and a clear warning sign, such as a red cloth, must be hung at its location to alert the operators. However, manually locating the cabinet for maintenance and hanging the red cloth is prone to errors.

[0003] In related technologies, after locating the designated maintenance cabinet, operators hang or attach the identification tags they carry to the outside of the cabinet, or place them directly on the floor next to it. Hanging or attaching tags to the outside of the cabinet obstructs the operator's view of the equipment inside, while placing tags directly on the floor next to the cabinet reduces the work area and hinders the cabinet's opening. Furthermore, tags that need to be hung or placed on-site must be collected and taken away by staff after maintenance, which reduces operator efficiency and increases their workload. Utility Model Content

[0004] The purpose of this application is to provide an electronic sign and maintenance sign system. By installing a transparent screen inside the cabinet with the display face facing the cabinet door, the cabinet with the electronic sign can have both the function of observing the internal equipment and the function of displaying cabinet work information, thereby improving the reliability, convenience and efficiency of power equipment maintenance.

[0005] The embodiments of this application are implemented as follows:

[0006] In a first aspect, embodiments of this application provide an electronic signboard applied to a power equipment cabinet. The cabinet includes a door with a transparent panel, and the electronic signboard includes a mounting housing, a circuit board, and a transparent screen. The mounting housing is connected to a first surface of the door, with the first surface facing the interior of the cabinet. The circuit board is connected to the mounting housing and is used to receive dynamically updated screen display information. The transparent screen is electrically connected to the circuit board and also connected to the mounting housing. The display surface of the transparent screen faces the transparent panel, allowing for transparent observation of the electrical devices inside the cabinet and dynamic display of the cabinet's operational information.

[0007] In the above technical solution, integrating the electronic signage onto the cabinet effectively saves space and reduces interference from the signage on the opening and closing of the cabinet door. The cabinet displays its maintenance status via the electronic signage, making it easier for staff to efficiently and accurately locate the cabinets to be maintained. It also facilitates the dynamic updating of the maintenance status of the cabinets by the maintenance system, improving the work efficiency of the operators and reducing their workload. The electronic signage is installed on the side of the cabinet door facing the inside of the cabinet, which helps protect the electronic signage and reduces the probability of screen damage. The electronic signage uses a transparent screen to display the maintenance status of the cabinet, which reduces the degree of obstruction of vision and makes it easier for operators to observe the equipment inside the cabinet.

[0008] In some embodiments, the transparent screen includes an LCD screen and a backlight strip, the backlight strip being disposed on the side of the LCD screen away from the transparent panel and connected to the mounting housing; the backlight strip emits light toward the LCD screen.

[0009] In the above technical solution, the backlight strip emits light towards the LCD screen, which can provide a uniform and sufficient backlight source, making the displayed content on the screen clearer and more vivid, so that users can see the displayed content clearly under different external lighting conditions; in addition, the illumination of the backlight strip gives the LCD screen a certain degree of transparency, which can help operators observe the equipment inside the cabinet through the transparent panel and the LCD screen.

[0010] In some embodiments, multiple backlight strips are provided, and the multiple backlight strips are located at the outer periphery of the LCD screen. In the above technical solution, the distribution of multiple backlight strips at the outer periphery of the LCD screen can improve the brightness uniformity of the entire screen area and enhance the overall display effect of the electronic signage; in addition, the location of the backlight strips at the outer periphery of the LCD screen can reduce visual obstruction and facilitate operators to observe the equipment inside the cabinet.

[0011] In some embodiments, the electronic signage further includes a protective transparent window, which is connected to the mounting housing, and the display surface of the transparent screen is attached to the protective transparent window. In the above technical solution, the protective transparent window being attached to the display surface of the transparent screen provides a protective barrier for the screen, extending its lifespan.

[0012] In some embodiments, the mounting housing includes a main frame housing and mounting ears, and a transparent screen is fixed on the main frame housing. Both the main frame housing and the mounting ears are provided with elongated holes. The mounting ears are connected to a first surface, and the main frame housing and the mounting ears are connected by a cross-shaped mating of the two elongated holes.

[0013] In the above technical solution, the elongated hole design allows the electronic sign to flexibly adjust the position of the transparent screen during assembly, ensuring that the screen is at the optimal viewing angle after installation; the cross-shaped mating connection not only provides fixing points in multiple directions but also increases the overall stability of the structure; the elongated hole design makes the assembly process simpler and faster, facilitates maintenance and replacement, improves installation efficiency, and saves installation time and costs.

[0014] In some embodiments, the mounting ear includes a first connecting portion and a second connecting portion that are connected to each other and perpendicular to each other. The first connecting portion has a first elongated hole for connecting to the main frame housing, and the second connecting portion has a second elongated hole for connecting to the first surface. The first elongated hole, the second elongated hole and the elongated hole on the main frame housing are perpendicular to each other.

[0015] In the above technical solution, when the mounting ear and the main frame shell are assembled, the first elongated hole, the second elongated hole and the elongated hole on the main frame shell can be perpendicular to each other, so that the screen position can be adjusted in three mutually perpendicular directions, providing more adjustment freedom and improving the screen viewing effect; the vertical design of the first connecting part and the second connecting part increases the structural strength of the mounting ear, making it less prone to deformation when subjected to external forces.

[0016] In some embodiments, the mounting housing includes a rear cover plate that covers the outside of the circuit board. In the above technical solution, the rear cover plate provides a layer of physical protection for the circuit board, reducing the risk of damage or contamination, extending the service life of the circuit board, and improving the reliability and stability of the electronic signage.

[0017] In some embodiments, the mounting housing further includes a cable shield, and the rear cover has interface connection holes. The cable shield is located at the end of the rear cover with the interface connection holes and together with the rear cover forms a wiring space. In the above technical solution, the wiring space formed by the cable shield and the rear cover can optimize the cable layout, reduce physical damage to the cables, extend the service life of the cables, and improve the reliability of the electronic signage.

[0018] Secondly, embodiments of this application provide a maintenance signage system applied to a power equipment cabinet. The cabinet includes a cabinet body and a door. The cabinet body houses electrical devices, and the door is closable on one side of the cabinet body. The maintenance signage system includes a bar-shaped LCD screen and an electronic sign provided in any embodiment of the first aspect of this application. The electronic sign is connected to the door; the bar-shaped LCD screen is located at the top of the cabinet body, and its display surface faces away from the display surface of the electronic sign.

[0019] In the above technical solution, the bar-shaped LCD screen and the electronic signboard work together. The display surfaces of the bar-shaped LCD screen and the electronic signboard are set back from each other, so that the working status or maintenance information of the equipment inside the cabinet can be displayed on both sides of the cabinet, which expands the information transmission coverage and improves the transmission effectiveness. The bar-shaped LCD screen located at the top of the cabinet can help operators quickly locate the cabinet to be repaired, improving the accuracy and efficiency of operators in identifying the cabinet to be repaired. The bar-shaped LCD screen and the electronic signboard are located in different positions in the cabinet, forming a dual confirmation mechanism for maintenance information, which improves the reliability of the maintenance signage system.

[0020] Thirdly, embodiments of this application provide a maintenance signage system, which is applied to a power equipment cabinet. The cabinet includes a cabinet body and a cabinet door. The cabinet body is used to house electrical devices, and the cabinet door is closable on one side of the cabinet body. The maintenance signage system includes a human body sensor component and an electronic sign provided in any embodiment of the first aspect of this application. The electronic sign is connected to the cabinet door. The human body sensor component is electrically connected to the electronic sign, and the human body sensor component is disposed on a second surface of the cabinet door, with the second surface opposite to the first surface.

[0021] In the above technical solution, the human body sensing component is located on the second surface of the cabinet door, reducing interference from the equipment inside the cabinet on the detection results of the human body sensing component. The human body sensing component will only trigger the electronic sign to light up and display specific information when maintenance personnel approach or touch the cabinet door. This intelligent design allows the electronic sign to automatically enter a low-power mode when no one is near the cabinet, saving energy and extending its service life. It also improves the convenience and intelligence of using the electronic sign. The combination of the human body sensing component and the electronic sign makes the entire maintenance signage system more intelligent, enabling maintenance personnel to quickly locate the cabinet and complete maintenance, improving maintenance efficiency and reducing misjudgments, thereby improving the accuracy and reliability of maintenance work. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a first-view schematic diagram illustrating a maintenance signage system applied to a cabinet, as shown in some embodiments of this application;

[0024] Figure 2 This is a second-view schematic diagram illustrating a maintenance signage system applied to a cabinet, as shown in some embodiments of this application;

[0025] Figure 3 This is a schematic diagram illustrating the structure of a maintenance signage system applied to a cabinet, as shown in some other embodiments of this application;

[0026] Figure 4 This is a first-view schematic diagram illustrating electronic signs applied to a display cabinet according to some embodiments of this application;

[0027] Figure 5 This is a second-view schematic diagram illustrating electronic signs applied to a display cabinet according to some embodiments of this application;

[0028] Figure 6 This is an exploded view of an electronic sign applied to a cabinet, as shown in some embodiments of this application.

[0029] Icons: 1-Screen cabinet; 11-Screen cabinet body; 12-Cabinet door; 121-First surface; 122-Second surface; 13-Transparent panel; 2-Electronic sign; 200-Long waist hole; 201-First long waist hole; 202-Second long waist hole; 203-Interface connection hole; 204-Cable routing space; 21-Mounting housing; 210-Main frame housing; 211-Mounting ear; 2111-First connecting part; 2112-Second connecting part; 212-Rear cover; 213-Wire shield; 214-Circuit board mounting bracket; 215-Light strip mounting bracket; 22-Circuit board; 23-Transparent screen; 231-LCD screen; 232-Backlight strip; 24-Protective transparent window; 3-Strip LCD screen; 4-Human body sensing component; 5-Maintenance signage system. Detailed Implementation

[0030] The terms “first,” “second,” “third,” etc., are used only for distinguishing descriptions and do not indicate a sequence number, nor should they be interpreted as indicating or implying relative importance.

[0031] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of this application, it should be noted that the terms "inner", "outer", "left", "right", "upper", "lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and 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 orientation. Therefore, they should not be construed as limitations on this application.

[0033] In the description of this application, unless otherwise expressly specified and limited, the terms “set up,” “install,” “connect,” and “link” shall be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; as a direct connection or an indirect connection through an intermediate medium; or as a connection within two components.

[0034] The technical solution of this application will now be described in detail with reference to the accompanying drawings.

[0035] Please see Figures 1 to 2 , Figure 1 This is a first-view schematic diagram of a maintenance signage system 5 applied to a cabinet 1, as shown in some embodiments of this application. Figure 2 This is a second-view schematic diagram illustrating a maintenance labeling system 5 applied to a cabinet 1, as shown in some embodiments of this application. Figures 1 to 2 As shown, this application provides a maintenance signage system 5, which is applied to a cabinet 1 that serves as electrical equipment.

[0036] The cabinet 1 includes a cabinet body 11 and a cabinet door 12. The cabinet body 11 is used to house electrical equipment. The cabinet door 12 is closable and located on one side of the cabinet body 11, and the cabinet door 12 has a transparent panel 13. The maintenance signage system 5 includes a strip-shaped LCD screen 3 and an electronic sign 2. The electronic sign 2 is connected to the cabinet door 12 and uses a transparent screen 23. The strip-shaped LCD screen 3 is located at the top of the cabinet body 11, and the display surface of the strip-shaped LCD screen 3 is opposite to the display surface of the electronic sign 2.

[0037] In this embodiment, the electronic sign 2 and the bar-shaped LCD screen 3 generally refer to an electronic screen that can display text, images, and other information, and are typically used to indicate or display specific content. The cabinet 1 generally refers to electrical equipment used to house and protect electrical devices. The cabinet door 12 of the cabinet 1 typically has a transparent panel 13 to allow observation of the interior of the cabinet 1. The cabinet door 12 of the cabinet 1 typically has a built-in lock to lock the cabinet door 12 to the cabinet body 11, eliminating the need for additional locks to protect the electronic sign 2. In this embodiment, the existing pressure strip on the cabinet 1 for fixing the transparent panel 13 (glass panel) can be used to align the elongated hole 200 on the mounting ear 211 of the electronic sign 2 with the screw position for connection and fixation. The bar-shaped LCD screen 3 can be fixedly installed on the top of the cabinet body 11 using a conventional connection method, such as screw tightening.

[0038] The specific application process of the maintenance signage system 5 is as follows: After the work order for maintenance work is issued, the maintenance control system automatically and remotely sends the task information to the electronic signboard 2 and bar LCD screen 3 installed on the corresponding cabinet 1. At this time, the electronic signboard 2 and bar LCD screen 3 will light up and display the corresponding work information. The operators can then quickly identify the cabinet 1 to be maintained by viewing the maintenance information displayed on the electronic signboard 2 or bar LCD screen 3 on each cabinet 1, and go directly to the cabinet 1 to verify the work information in order to start the maintenance work.

[0039] In the above technical solution, the bar-shaped LCD screen 3 and the electronic signboard 2 work together. The display surfaces of the bar-shaped LCD screen 3 and the electronic signboard 2 are set back from each other, so that the working status or operation content of the equipment in the cabinet 1 can be displayed on both sides of the cabinet 1. This expands the information transmission coverage and improves the transmission effectiveness, reducing the probability of operators going to the wrong interval or selecting the wrong cabinet. The bar-shaped LCD screen 3 located at the top of the cabinet body 11 can help operators quickly locate the cabinet 1 to be repaired, improving the accuracy and efficiency of operators in identifying the cabinet 1 to be repaired. The bar-shaped LCD screen 3 and the electronic signboard 2 are located in different positions in the cabinet 1, forming a dual confirmation mechanism for maintenance information, which improves the reliability of the maintenance signage system 5.

[0040] Please see Figure 3 , Figure 3 This is a schematic diagram illustrating the structure of a maintenance labeling system 5 applied to a cabinet 1, as shown in other embodiments of this application. Figure 3 As shown, this application provides a maintenance signage system 5, which is applied to a cabinet 1 that serves as electrical equipment.

[0041] The cabinet 1 includes a cabinet body 11 and a cabinet door 12. The cabinet body 11 is used to house electrical devices. The cabinet door 12 is openable and closable on one side of the cabinet body 11 and has a transparent panel 13. The cabinet door 12 includes a first surface 121 and a second surface 122. The first surface 121 is the side of the cabinet door 12 facing and adjacent to the cabinet body 11, and the second surface 122 is the side of the cabinet door 12 away from the cabinet body 11. The first surface 121 and the second surface 122 are opposite to each other. The maintenance signage system 5 includes a human body sensor 4 and an electronic sign 2. The electronic sign 2 is connected to the cabinet door 12 and uses a transparent screen 23. The electronic sign 2 is connected to the first surface 121 of the cabinet door 12 through a mounting housing 21. The human body sensor 4 is electrically connected to the electronic sign 2 and is located on the second surface 122 of the cabinet door 12.

[0042] In this embodiment of the application, electronic signboard 2 generally refers to an electronic screen that can display information such as text and images, and is usually used to mark or display specific content; cabinet 1 generally refers to electrical equipment used to house and protect electrical devices, and the cabinet door 12 of cabinet 1 generally has a transparent panel 13 to allow observation of the inside of cabinet 1; human body sensing component 4 generally refers to a sensing device that can detect when a human body approaches or touches a designated object (such as cabinet door 12).

[0043] In the above technical solution, the human body sensing component 4 is located on the second surface 122 (i.e., the outer side of the cabinet door 12) of the cabinet door 12, which reduces the interference of the equipment inside the cabinet on the detection results of the human body sensing component 4. The human body sensing component 4 will only trigger the electronic sign 2 to light up and display specific information when the maintenance personnel approach or touch the cabinet door 12. This intelligent design allows the electronic sign 2 to automatically enter a low-power mode when no one is near the cabinet 1, saving energy and extending its service life. It also improves the convenience and intelligence of the electronic sign 2. The combination of the human body sensing component 4 and the electronic sign 2 makes the entire maintenance signage system 5 more intelligent, which can help maintenance personnel quickly locate the cabinet 1 and complete the maintenance, improve maintenance efficiency and reduce misjudgments, thereby improving the accuracy and reliability of maintenance work.

[0044] In some other embodiments, the maintenance signage system 5 may include a bar-shaped LCD screen 3, a human body sensor component 4, and an electronic sign 2. The electronic sign 2 is connected to the cabinet door 12 and uses a transparent screen 23, with the display surface of the transparent screen 23 facing the transparent panel 13 on the cabinet door 12; the bar-shaped LCD screen 3 is located at the top of the cabinet body 11, and the display surface of the bar-shaped LCD screen 3 is opposite to the display surface of the electronic sign 2; the human body sensor component 4 is electrically connected to the electronic sign 2, and the human body sensor component 4 is located on the second surface 122 of the cabinet door 12, with the second surface 122 opposite to the first surface 121.

[0045] Please see Figures 4 to 6 , Figure 4 This is a first-view schematic diagram of an electronic sign 2 applied to a cabinet 1, as shown in some embodiments of this application; Figure 5 This is a second-view schematic diagram of an electronic sign 2 applied to a cabinet 1, as shown in some embodiments of this application; Figure 6 This is an exploded view of an electronic sign 2 applied to a display cabinet 1, as shown in some embodiments of this application. Please refer to... Figures 1 to 6 As shown, the electronic sign 2 can be directly applied to the power equipment cabinet 1.

[0046] The cabinet 1 includes a cabinet door 12 with a transparent panel 13. The electronic sign 2 includes a mounting housing 21, a circuit board 22, and a transparent screen 23. Specifically, the mounting housing 21 is connected to the first surface 121 of the cabinet door 12, with the first surface 121 facing the interior of the cabinet 1. The circuit board 22 is connected to the mounting housing 21 and is used to receive dynamically updated screen display information from the control terminal. The screen display information includes the working information of the cabinet 1, such as the cabinet maintenance status and maintenance precautions. The transparent screen 23 is electrically connected to the circuit board 22 and is also connected to the mounting housing 21. The display surface of the transparent screen 23 faces the transparent panel 13, and is used for transparent observation of the electrical devices inside the cabinet 1 or the cabinet body 11, and for dynamically displaying the working information of the cabinet 1.

[0047] In this embodiment of the application, the cabinet 1 generally refers to the power equipment used to house and protect electrical devices. The cabinet door 12 of the cabinet 1 usually has a transparent panel 13 so that the operator can observe the inside of the cabinet 1. The transparent panel 13 refers to the transparent material installed on the cabinet door 12 so that the user can see the equipment inside the cabinet from the outside and keep the equipment inside the cabinet safe and clean. Mounting housing 21 refers to the outer shell used to fix and protect the key components of electronic signage 2. Mounting housing 21 is usually connected to the side surface of cabinet door 12 facing the inside of cabinet 1, and plays a supporting and protective role. Circuit board 22 is one of the key components of electronic signage 2. Circuit board 22 is usually used to receive screen display information from external control system (such as the control terminal in maintenance signage system 5) and transmit it to transparent screen 23 for display. Circuit board 22 integrates various electronic components, such as processor, memory, communication module, etc. Transparent screen 23 usually refers to a special screen that can both display information and allow light to pass through so that users can see objects behind the screen. The display surface of transparent screen 23 is set facing transparent panel 13 so that operators can see the screen display content and the internal equipment status of cabinet 1 from outside cabinet 1.

[0048] In the above technical solution, integrating the electronic sign 2 onto the cabinet 1 effectively saves space and reduces interference from the sign on the opening and closing of the cabinet door 12. The cabinet 1 displays the maintenance status through the electronic sign 2, making it easier for staff to efficiently and accurately locate the cabinet 1 to be maintained, and also facilitating the dynamic updating of the maintenance status of the cabinet 1 by the maintenance system. Integrating the electronic sign 2 onto the cabinet 1 eliminates the need for operators to carry or retrieve additional signs, improving their work efficiency and reducing their workload. The electronic sign 2 is embedded in the side of the cabinet door 12 facing the inside of the cabinet 1, typically requiring no additional screen protection; a transparent panel can protect the electronic sign 2 and reduce the probability of screen damage. The electronic sign 2 uses a transparent screen 23 to display the maintenance status of the cabinet 1, reducing the degree of visual obstruction and facilitating operators to observe the equipment inside the cabinet.

[0049] In some embodiments, the transparent screen 23 includes a liquid crystal display (LCD) 231 and a backlight strip 232. The backlight strip 232 is disposed on the side of the LCD 231 away from the transparent panel 13 and is connected to the mounting housing 21. The backlight strip 232 emits light towards the LCD 231. In other embodiments, the transparent screen 23 may be a transparent OLED screen.

[0050] In the above technical solution, the backlight strip 232 is located on the side of the LCD screen 231 away from the transparent panel 13 and emits light towards the LCD screen 231, providing a uniform and sufficient backlight source. This not only improves the brightness of the screen but also enhances the contrast, making the displayed content clearer and more vibrant. The LCD screen 231 itself has a certain degree of light transmittance, and the setting of the backlight strip 232 allows users to clearly see the displayed content under different external lighting conditions. In addition, the LCD screen 231 is usually an opaque black screen. In areas where maintenance information does not need to be displayed, the illumination of the backlight strip 232 gives the LCD screen 231 a certain degree of transparency, which helps operators observe the equipment inside the cabinet through the transparent panel 13 and the LCD screen 231. The combination of the backlight strip 232 and the LCD screen 231 is suitable for different usage environments and application needs. For example, in a darker environment, the backlight strip 232 can provide sufficient illumination; while in a bright environment, the backlight strip 232 still functions and does not affect the operator's observation of the equipment inside the cabinet.

[0051] In some embodiments, multiple backlight strips 232 are provided, and the multiple backlight strips 232 are located on the outer peripheral edge of the LCD screen 231. Further, two backlight strips 232 may be provided, with the two backlight strips 232 respectively located on one side of the top edge and one side of the bottom edge of the LCD screen 231. Further, four backlight strips 232 may be provided, with all four backlight strips 232 located on the same side of the LCD screen 231, and the projections of the four backlight strips 232 on the LCD screen 231 surrounding the LCD screen 231, forming a rectangular light strip frame.

[0052] In the above technical solution, multiple backlight strips 232 are distributed on the outer periphery of the LCD screen 231, which can provide a more uniform backlight source, thereby improving the brightness consistency of the entire screen area and enhancing the overall display effect of the electronic sign 2. In addition, the backlight strips 232 are located on the outer periphery of the LCD screen 231, which can reduce visual obstruction and help operators observe the equipment inside the cabinet.

[0053] In some embodiments, the electronic signboard 2 further includes a protective transparent window 24, which is connected to the mounting housing 21, and the display surface of the transparent screen 23 is attached to the protective transparent window 24. Further, the protective transparent window 24 can be made of acrylic; the acrylic transparent window can be attached to the main frame housing 210, and the display surface of the LCD screen 231 is attached to the acrylic transparent window.

[0054] In the above technical solution, the protective transparent window 24 is attached to the display surface of the transparent screen 23, providing a solid physical barrier for the screen. This improves the problem of external objects (such as tools, screws and other sharp objects) directly contacting the screen surface during or after installation, causing scratches, collisions and other mechanical damage, and extends the service life of the screen.

[0055] In one application, when content needs to be displayed on the electronic signboard 2, the circuit board 22 controls the LCD screen 231 to display the corresponding information and illuminates the backlight strips 232, so as to achieve the display of specific content on the electronic signboard 2 and the perspective effect of observing the electrical devices behind the LCD screen 231. In some embodiments, black light-shielding strips or silkscreened black light-blocking layers can also be pasted on the protective transparent window 24 or the transparent panel 13 at the position directly opposite each backlight strip 232 to reduce the glare to personnel working outside the cabinet 1 when the backlight strips 232 are lit.

[0056] In this embodiment, the electronic sign 2 can be considered as a modular structure, fixed to the inside of the cabinet door 12 (first surface 121) of the cabinet 1 by a mounting housing 21. In some embodiments, the mounting housing 21 may include a main frame shell 210 and two mounting ears 211. A transparent screen 23 is fixed to the main frame shell 210, and each side of the main frame shell 210 is connected to a mounting ear 211, which is connected to the first surface 121. Specifically, both the main frame shell 210 and the mounting ears 211 are provided with elongated holes 200, and the main frame shell 210 and the mounting ears 211 can be connected by a cross-shaped fit of the two elongated holes 200.

[0057] In the above technical solution, both the main frame shell 210 and the mounting ears 211 are provided with elongated holes 200, which can flexibly adjust the position of the transparent screen 23 during installation. Whether in the horizontal or vertical direction, the screen position can be finely adjusted by sliding the elongated holes 200, so that the installed screen is at the best viewing angle. The cross-shaped mating connection not only provides fixing points in multiple directions, but also increases the overall stability of the structure and reduces the risk of screen loosening and falling off. The design of the elongated holes 200 makes the installation process simpler and faster. Installers can quickly find the appropriate installation point by adjusting the position of the bolts in the elongated holes 200. The design of the elongated holes 200 allows for a certain installation error, without the need to accurately measure each hole position. When disassembling the transparent screen 23, the screen can be easily removed by simply loosening the bolts, which is convenient for maintenance and replacement, improves installation efficiency, and saves installation time and costs.

[0058] In some embodiments, the mounting ear 211 includes a first connecting portion 2111 and a second connecting portion 2112 that are interconnected and perpendicular to each other. The first connecting portion 2111 is disposed on one side of the second connecting portion 2112 and is bent perpendicularly relative to the second connecting portion 2112. The first connecting portion 2111 can be integrally formed with the second connecting portion 2112. The first connecting portion 2111 has a first elongated hole 201 for connecting the main frame housing 210, and the second connecting portion 2112 has a second elongated hole 202 for connecting the first surface 121. The first elongated hole 201, the second elongated hole 202 and the elongated hole 200 on the main frame housing 210 can be perpendicular to each other.

[0059] In the above technical solution, the first elongated hole 201 and the second elongated hole 202 are perpendicular to the elongated hole 200 on the main frame shell 210, so that the screen position can be adjusted in three mutually perpendicular directions, providing more adjustment freedom and improving the screen viewing effect; the vertical design of the first connecting part 2111 and the second connecting part 2112 increases the structural strength of the mounting ear 211, making it less prone to deformation when subjected to external forces.

[0060] In some embodiments, the mounting ears 211 can adopt a multi-hole parallel arrangement design, with multiple elongated holes 200 arranged along the extension direction of the mounting ears 211 on the first connecting portion 2111 and the second connecting portion 2112. The multi-hole design of the mounting ears 211 can accommodate more specifications of the cabinet 1. Specifically, when the mounting ears 211 are connected to the main frame shell 210 and precisely installed on the first surface 121, the extension direction of the first elongated hole 201 can be consistent with the height direction of the cabinet 1, the extension direction of the elongated hole 200 on the main frame shell 210 can be perpendicular to the first surface 121, and the extension direction of the second elongated hole 202 can be perpendicular to the extension direction of both the first elongated hole 201 and the elongated hole 200 on the main frame shell 210.

[0061] In some embodiments, the circuit board 22 can be fixed to the main frame housing 210 by a circuit board mounting bracket 214; the mounting housing 21 also includes a rear cover plate 212, which can cooperate with the main frame housing 210 to cover the outer periphery of the circuit board 22. In the above technical solution, the rear cover plate 212 provides a layer of physical protection for the circuit board 22, reducing the risk of damage to the circuit board 22 and extending the service life of the circuit board 22; the rear cover plate 212 can effectively block dust, moisture and other contaminants from entering the interior of the circuit board 22, keeping the circuit board 22 clean and dry, reducing the failure of the circuit board 22 due to contamination, and improving the reliability and stability of the electronic sign 2.

[0062] In some embodiments, the mounting housing 21 further includes a wire shield 213. The rear cover plate 212 has an interface connection hole 203, through which the electrical interface of the circuit board 22 can be exposed. The wire shield 213 is disposed at one end of the rear cover plate 212 with the interface connection hole 203, and together with the rear cover plate 212, forms a wiring space 204. Specifically, the cross-sectional shape of the wire shield 213 is an inverted U-shape, and one side panel of the wire shield 213 is shorter and the other side panel is longer. The edge of the shorter panel of the wire shield 213 overlaps at one end of the rear cover plate 212 with the interface connection hole 203, and together with the rear cover plate 212, forms a wiring space 204, which communicates with the interface connection hole 203.

[0063] In the above technical solution, the cable routing space 204 formed by the cable shield 213 and the rear cover 212 can optimize the cable layout, making the cable routing clear and orderly, and reducing interference and tangling between cables; the cable shield 213 can protect the cable from the squeezing, friction and wear of external objects, reduce physical damage to the cable, and extend the service life of the cable; the cable shield 213 can block dust and moisture from entering the cable area, keep the cable clean and dry, and reduce electrical faults caused by pollution; the cable shield 213 can also reduce the probability of personnel directly contacting the exposed cable, reduce the risk of electric shock, and improve the reliability of the electronic sign 2.

[0064] In some embodiments, the backlight strip 232 located near the top of the transparent screen 23 can be connected to the main frame housing 210 via a light strip mounting bracket 215; the backlight strip 232 located near the bottom of the transparent screen 23 can be directly attached to the bottom side wall of the main frame housing 210. In the above technical solution, the design of separating and independently installing the backlight strip 232 from the LCD screen 231 simplifies the overall structure of the electronic signboard 2, improves reliability and ease of maintenance; the connection between the backlight strip 232 and the mounting housing 21 facilitates heat conduction and dissipation, reducing the probability of the backlight strip 232 damaging the LCD screen 231 or other electronic components due to overheating, thereby extending the service life of the electronic signboard 2.

[0065] The above description is merely a preferred embodiment of this application and is not intended to limit 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 protection scope of this application.

Claims

1. An electronic sign (2), characterized in that, The electronic sign (2) is applied to a power equipment cabinet (1), which includes a cabinet door (12) with a transparent panel (13). The electronic sign (2) includes: Mounting housing (21), the mounting housing (21) is connected to the first surface (121) of the cabinet door (12), the first surface (121) facing the interior of the cabinet (1); Circuit board (22), which is connected to the mounting housing (21), is used to receive dynamically updated screen display information; A transparent screen (23) is electrically connected to the circuit board (22) and connected to the mounting housing (21). The display surface of the transparent screen (23) faces the transparent panel (13) and is used for transparent observation of the electrical devices inside the cabinet (1) and dynamic display of the working information of the cabinet (1).

2. The electronic signage (2) according to claim 1, characterized in that, The transparent screen (23) includes a liquid crystal screen (231) and a backlight strip (232). The backlight strip (232) is located on the side of the liquid crystal screen (231) away from the transparent panel (13) and is connected to the mounting housing (21). The backlight strip (232) emits light towards the liquid crystal screen (231).

3. The electronic signage (2) according to claim 2, characterized in that, Multiple backlight strips (232) are provided, and the multiple backlight strips (232) are provided on the outer periphery edge of the LCD screen (231).

4. The electronic signage (2) according to claim 1, characterized in that, The electronic sign (2) also includes a protective transparent window (24), which is connected to the mounting housing (21), and the display surface of the transparent screen (23) is attached to the protective transparent window (24).

5. The electronic signage (2) according to claim 1, characterized in that, The mounting housing (21) includes a main frame shell (210) and a mounting ear (211). The transparent screen (23) is fixed on the main frame shell (210). Both the main frame shell (210) and the mounting ear (211) are provided with elongated holes (200). The mounting ear (211) is connected to the first surface (121). The main frame shell (210) and the mounting ear (211) are connected by a cross-shaped mating of the two elongated holes (200).

6. The electronic signage (2) according to claim 5, characterized in that, The mounting ear (211) includes a first connecting portion (2111) and a second connecting portion (2112) that are connected to each other and perpendicular to each other. The first connecting portion (2111) has a first elongated hole (201) for connecting the main frame shell (210), and the second connecting portion (2112) has a second elongated hole (202) for connecting the first surface (121). The first elongated hole (201), the second elongated hole (202) and the elongated hole (200) on the main frame shell (210) are perpendicular to each other.

7. The electronic signage (2) according to any one of claims 1-6, characterized in that, The mounting housing (21) includes a rear cover (212) which covers the outside of the circuit board (22).

8. The electronic signage (2) according to claim 7, characterized in that, The mounting housing (21) also includes a wire shield (213), and the rear cover plate (212) has an interface connection hole (203). The wire shield (213) is located at one end of the rear cover plate (212) with the interface connection hole (203) and forms a wiring space (204) with the rear cover plate (212).

9. A maintenance signage system (5), characterized in that, The system is applied to the cabinet (1) used as electrical equipment. The cabinet (1) includes a cabinet body (11) and a cabinet door (12). The cabinet body (11) is used to house electrical equipment. The cabinet door (12) is closable on one side of the cabinet body (11). The maintenance signage system (5) includes: The electronic sign (2) according to any one of claims 1-8, wherein the electronic sign (2) is connected to the cabinet door (12); A bar-shaped LCD screen (3) is located at the top of the main body (11) of the cabinet, and the display surface of the bar-shaped LCD screen (3) is opposite to the display surface of the electronic signboard (2).

10. A maintenance signage system (5), characterized in that, The system is applied to the cabinet (1) used as electrical equipment. The cabinet (1) includes a cabinet body (11) and a cabinet door (12). The cabinet body (11) is used to house electrical equipment. The cabinet door (12) is closable on one side of the cabinet body (11). The maintenance signage system (5) includes: The electronic sign (2) according to any one of claims 1-8, wherein the electronic sign (2) is connected to the cabinet door (12); Human body sensing component (4) is electrically connected to the electronic sign (2) and is disposed on the second surface (122) of the cabinet door (12), the second surface (122) being opposite to the first surface (121).

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