Direct current screen protection device
By designing a segmented protective panel structure and magnetic positioning, the problem of accidental touch on DC power supplies was solved, achieving a more efficient protective effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI KAIHUA POWER SUPPLY EQUIP CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-24
AI Technical Summary
The existing DC power supply shield is a single piece, which makes it easy for operators to accidentally touch the bottom operating devices, affecting the flexibility and effectiveness of the protection.
An operational protection mechanism comprising a first protective plate and a second protective plate is designed. The plates are connected by hinges to form a segmented protection structure. Combined with a reference plate, reference strip, magnetic positioning, and other structures, the protective plates can be conveniently closed and positioned.
It improves the protection flexibility and effectiveness of the DC shield, avoids accidental touch, and enhances the convenience of closing the protective plate and the stability of its positioning.
Smart Images

Figure CN224164505U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of DC power supply technology, and more specifically, to a DC power supply protection device. Background Technology
[0002] A DC power supply unit is a device that provides DC power to power systems and industrial applications. Under normal circumstances, AC power is converted to DC power through a charging module. This DC power is used to charge the battery bank, keeping it fully charged, and to provide a stable DC power supply to the load. The charging module, through its internal control circuit, automatically adjusts the output voltage and current based on the battery's charging characteristics and the instructions from the monitoring module. This allows for control of different charging stages, such as constant current charging and constant voltage charging. When the AC power supply fails or is interrupted, the battery bank automatically starts operating, providing DC power to the load and ensuring its normal operation. The monitoring module monitors the DC power supply's various operating parameters in real time. If any abnormalities are detected, such as charging module failure, low battery voltage, or overcurrent, an alarm signal will be issued promptly, and corresponding protective measures will be taken, such as disconnecting the fault circuit and adjusting charging parameters, to ensure the safe and stable operation of the DC power supply. Since operating controls are installed on the top and bottom of the front of the DC power supply, it is necessary to implement operational protection measures.
[0003] In related technologies, during the use of DC power supply panels, a first protective plate that can be flipped is generally installed on the front side of the DC power supply panel to flip and cover the operating devices located on the front side of the DC power supply panel for protection.
[0004] However, in the current use of DC power shields, since the first protective plate is generally integrated and the DC power shield is relatively high, when staff operate the operating devices on the top front side of the DC power shield, it is very easy for clothing or lower limbs to accidentally touch the operating devices on the bottom front side of the DC power shield, resulting in misoperation of the DC power shield and affecting the flexibility and effectiveness of the DC power shield's operation and protection. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a DC screen protection device that overcomes or at least partially solves the above technical problems.
[0006] This utility model is implemented as follows:
[0007] This utility model provides a DC power supply protection device, including a DC power supply, a monitoring screen installed on the top of the front side of the DC power supply, a switch opened on the front side of the DC power supply, and a button installed on the front side of the DC power supply.
[0008] Operation protection mechanism, the operation protection mechanism comprising:
[0009] The first protective plate is movably connected to the top of the inner side of the DC screen via a hinge, and the bottom of the inner side of the DC screen is movably connected to the second protective plate via a hinge.
[0010] Observation port; the observation port is located on the front side of the first protective plate and the second protective plate, and an observation plate is fixedly connected to the front side of the inner wall of the observation port;
[0011] A protective connection mechanism is provided on the front side of the bottom of the first protective plate.
[0012] In a preferred embodiment, the protective connection mechanism includes a connection cavity, a connection frame, and a connection groove. The connection cavity is located on the front side of the bottom of the first protective plate, the connection frame is movably connected to the inside of the connection cavity, the connection groove is located on the front side of the top of the second protective plate, and the bottom of the connection frame is located inside the connection groove.
[0013] In a preferred embodiment, a reference plate is movably connected to the front side of the bottom right side of the second protective plate, the left side of the reference plate is fixedly connected to the right side of the connecting frame, and a reference strip is fixedly connected to the right side of the reference plate.
[0014] In a preferred embodiment, a disk is embedded and connected to the left side of the connecting frame, and a magnetic chuck that is magnetically connected to the disk is embedded and connected to the left side of the inner wall of the connecting cavity.
[0015] In a preferred embodiment, a positioning cavity is provided at the top of the front side of the second protective plate, and a positioning column is movably connected inside the positioning cavity.
[0016] In a preferred embodiment, a positioning groove is provided on the left side of the inner side of the DC screen. The positioning groove is flush with the positioning post and is used in conjunction with the positioning post.
[0017] In a preferred embodiment, spring grooves are provided on the rear side of the inner wall of the positioning cavity and the rear side of the positioning post, and a spring is provided inside the positioning cavity, with the outer side of the spring connected to the inner wall of the spring groove.
[0018] In a preferred embodiment, a movable opening is provided on the right side of the positioning cavity, and a movable column is movably connected inside the movable opening. The left side of the movable column is fixedly connected to the right side of the positioning column.
[0019] The DC shield protection device provided by this utility model has the following beneficial effects:
[0020] 1. By setting up an operation protection mechanism, a segmented protective medium can be formed at the top and bottom of the front side of the DC power supply panel. This allows staff to perform zoned protection on different positions on the front side of the DC power supply panel when operating it through the monitoring screen and using switches and buttons. This prevents accidental touches during button and monitoring screen operation, thus improving the protection flexibility and effectiveness of the DC power supply panel.
[0021] 2. By setting up a protective connection mechanism, the first protective plate and the second protective plate can be closed and connected. When the first protective plate and the second protective plate are closed, the monitoring screen and buttons on the front side of the DC power supply are protected. This avoids the situation where the first protective plate and the second protective plate are difficult to close and connect, thus improving the convenience of closing and connecting the first protective plate and the second protective plate.
[0022] 3. By setting a reference plate and a reference plate, the user can be provided with a medium to rotate the connecting bracket to disengage from and enter the connecting slot, and the user can clearly understand the operating position of the connecting bracket, thus avoiding situations where the connecting bracket is difficult to operate or its position is unclear, thereby improving the ease of operation of the connecting bracket. Attached Figure Description
[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0024] Figure 1 This is an overall perspective view provided by an embodiment of the present utility model;
[0025] Figure 2 A three-dimensional cross-sectional structural diagram of the first protective plate provided for an embodiment of this utility model;
[0026] Figure 3 A three-dimensional cross-sectional structural diagram of the connecting frame provided for an embodiment of this utility model;
[0027] Figure 4 A three-dimensional cross-sectional structural diagram of the second protective plate provided for an embodiment of this utility model;
[0028] In the diagram: 1. DC power supply panel; 2. Monitoring panel; 3. Switch; 4. Button; 5. First protective plate; 6. Second protective plate; 7. Observation port; 8. Observation plate; 9. Connecting cavity; 10. Connecting frame; 11. Connecting groove; 12. Reference plate; 13. Reference strip; 14. Disk; 15. Magnetic chuck; 16. Positioning cavity; 17. Positioning post; 18. Positioning groove; 19. Spring groove; 20. Spring; 21. Moving port; 22. Moving post. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0030] Reference Figures 1-4 This utility model provides a technical solution: a DC power supply protection device, including a DC power supply 1 and an operation protection mechanism. A monitoring screen 2 is installed on the top of the front side of the DC power supply 1, a switch 3 is opened on the front side of the DC power supply 1, and a button 4 is installed on the front side of the DC power supply 1. This can form a segmented protective medium at the top and bottom of the front side of the DC power supply 1, so that when the operator operates the DC power supply 1 through the monitoring screen 2 in conjunction with the switch 3 and the button 4, the upper and lower positions of the front side of the DC power supply 1 can be protected in a segmented manner, avoiding accidental touches during the operation of the button 4 and the monitoring screen 2. Therefore, the protection flexibility and protection effect of the DC power supply 1 are improved.
[0031] Reference Figures 1-4In a preferred embodiment, the operation protection mechanism includes a first protective plate 5, which is hinged to the top of the inner side of the DC power supply panel 1. A second protective plate 6 is hinged to the bottom of the inner side of the DC power supply panel 1. An observation port 7 is opened on the front side of the first protective plate 5 and the second protective plate 6. An observation plate 8 is fixedly connected to the front side of the inner wall of the observation port 7. A protective connection mechanism is set on the front side of the bottom of the first protective plate 5. Through the cooperation of the first protective plate 5 and the second protective plate 6 with the observation plate 8, a downward segmented protective medium is formed on the front side of the DC power supply panel 1, so that the operator can perform vertical segmented operation protection on the front side of the DC power supply panel 1, preventing accidental activation of the bottom button 4 during operation of the DC power supply panel 1. The protective connection mechanism includes a connecting cavity 9, a connecting frame 10, and a connecting groove 11. The connecting cavity 9 is located on the front side of the bottom of the first protective plate 5. The connecting frame 10 is movably connected inside the connecting cavity 9. The connecting groove 11 is located on the front side of the top of the second protective plate 6. The bottom of the connecting frame 10 is located inside the connecting groove 11. This mechanism can perform a closed connection between the first protective plate 5 and the second protective plate 6 after they are closed. When the first protective plate 5 and the second protective plate 6 are closed, the monitoring screen 2 and the button 4 on the front side of the DC power supply 1 are protected. This avoids the situation where the first protective plate 5 and the second protective plate 6 are difficult to close and connect during use, thus improving the convenience of closing and connecting the first protective plate 5 and the second protective plate 6.
[0032] Reference Figures 2-3 In a preferred embodiment, a reference plate 12 is movably connected to the front side of the bottom right side of the second protective plate 6. The left side of the reference plate 12 is fixedly connected to the right side of the connecting frame 10, and a reference strip 13 is fixedly connected to the right side of the reference plate 12. This provides the user with a medium to rotate the connecting frame 10 to disengage from and enter the connecting groove 11, and makes it easier for the user to clearly understand the operating position of the connecting frame 10. This avoids situations where the connecting frame 10 is difficult to operate or its position is unclear during use, thus improving the ease of operation of the connecting frame 10. A disk 14 is embedded and connected to the left side of the connecting frame 10, and a magnetic chuck 15, which is magnetically connected to the disk 14, is embedded and connected to the left side of the inner wall of the connecting cavity 9. This allows for magnetic positioning of the connecting frame 10 and the connecting cavity 9 after operation, thus improving the ease of operation and positioning of the connecting frame 10.
[0033] Reference Figures 2-4In a preferred embodiment, a positioning cavity 16 is provided at the top of the front side of the second protective plate 6, and a positioning post 17 is movably connected inside the positioning cavity 16. This provides a medium for the user to close and position the second protective plate 6 and the DC screen 1, thus improving the convenience of closing and positioning the second protective plate 6. A positioning groove 18 is provided on the left side of the inner side of the DC screen 1. The positioning groove 18 is flush with the positioning post 17. The positioning groove 18 is used in conjunction with the positioning post 17 to provide space for the positioning post 17 to be inserted and positioned with the DC screen 1, thus improving the insertion and positioning effect of the positioning post 17.
[0034] Reference Figures 2-4 In a preferred embodiment, spring grooves 19 are provided on the rear side of the inner wall of the positioning cavity 16 and the rear side of the positioning post 17. A spring 20 is provided inside the positioning cavity 16, and the outer side of the spring 20 is connected to the inner wall of the spring groove 19. This can apply an outward pushing force to the positioning post 17, ensuring that the positioning post 17 is inserted into the positioning groove 18. This improves the insertion and positioning stability of the positioning post 17. A movable opening 21 is provided on the right side of the positioning cavity 16. A movable post 22 is movably connected inside the movable opening 21. The left side of the movable post 22 is fixedly connected to the right side of the positioning post 17. This provides the user with a medium to move the positioning post 17 into and out of the positioning groove 18, thus improving the ease of operation of the positioning post 17.
[0035] Specifically, the working process or principle of this DC power supply protection device is as follows: When it is necessary to operate the monitoring screen 2 and switch 3 on the top front side of the DC power supply 1, the reference plate 12, in conjunction with the reference strip 13, applies rotational force to the connecting frame 10, causing the bottom of the connecting frame 10 to rotate and disengage from the connecting groove 11. Since the reference strip 13 is parallel to the connecting frame 10, the rotation position of the connecting frame 10 can be determined by the position of the reference strip 13. When the reference strip 13 rotates horizontally in front of the first protective plate 5, it indicates that the connecting frame 10 has rotated out of the connecting groove 11. At this time, the disk 14, in conjunction with the magnetic chuck 15, performs magnetic positioning between the operated connecting frame 10 and the connecting cavity 9. Then, by pulling the first protective plate 5 forward with the reference strip 13 and the reference plate 12, the first protective plate 5 can be flipped to open the front side of the DC power supply 1, allowing operation of the monitoring screen 2 and switch 3 on the top front side of the DC power supply 1. During the process, spring 20, in conjunction with spring groove 19, applies a pushing force to positioning post 17, causing positioning post 17 to insert into positioning groove 18 and positioning cavity 16, thus performing the insertion and positioning work between second protective plate 6 and DC screen 1. This allows second protective plate 6, in conjunction with observation plate 8, to cover and protect button 4 at the bottom front of DC screen 1. When it is necessary to fully open the front of DC screen 1, moving post 22, in conjunction with moving port 21, moves positioning post 17 to push positioning groove 18 into positioning cavity 16. Moving post 22, in conjunction with positioning post 17, applies a forward pulling force to second protective plate 6. At this time, connecting bracket 10, in conjunction with connecting cavity 9 and connecting groove 11, drives first protective plate 5 to rotate with second protective plate 6, thus fully opening the front of DC screen 1. Since observation plate 8 is made of transparent acrylic material, when first protective plate 5 and second protective plate 6 are closed, staff can directly observe monitoring screen 2.
[0036] It should be noted that DC power supply 1, monitoring screen 2, switch 3 and button 4 are all existing devices or equipment, or devices or equipment that can be implemented with existing technology. Their power supply, specific composition and principle are clear to those skilled in the art, so they will not be described in detail.
Claims
1. A DC power supply protection device, comprising a DC power supply (1), wherein a monitoring screen (2) is mounted on the top of the front side of the DC power supply (1), a switch (3) is provided on the front side of the DC power supply (1), and a button (4) is installed on the front side of the DC power supply (1), characterized in that... ; Operation protection mechanism, the operation protection mechanism comprising: First protective plate (5); the first protective plate (5) is movably connected to the top of the inside of the DC screen (1) by a hinge, and the bottom of the inside of the DC screen (1) is movably connected to the second protective plate (6) by a hinge; Observation port (7); The observation port (7) is opened on the front side of the first protective plate (5) and the second protective plate (6), and an observation plate (8) is fixedly connected to the front side of the inner wall of the observation port (7); Protective connection mechanism; the protective connection mechanism is located on the front side of the bottom of the first protective plate (5).
2. The DC shielding protection device according to claim 1, characterized in that, The protective connection mechanism includes a connection cavity (9), a connection frame (10), and a connection groove (11). The connection cavity (9) is located on the front side of the bottom of the first protective plate (5). The connection frame (10) is movably connected inside the connection cavity (9). The connection groove (11) is located on the front side of the top of the second protective plate (6). The bottom of the connection frame (10) is located inside the connection groove (11).
3. The DC shielding protection device according to claim 2, characterized in that, A reference plate (12) is movably connected to the front side of the bottom right side of the second protective plate (6). The left side of the reference plate (12) is fixedly connected to the right side of the connecting frame (10). A reference strip (13) is fixedly connected to the right side of the reference plate (12).
4. A DC power shield protection device according to claim 2, characterized in that, A disk (14) is embedded and connected to the left side of the connecting frame (10), and a magnetic chuck (15) that is magnetically connected to the disk (14) is embedded and connected to the left side of the inner wall of the connecting cavity (9).
5. A DC power shield protection device according to claim 1, characterized in that, The top of the front side of the second protective plate (6) is provided with a positioning cavity (16), and a positioning column (17) is movably connected inside the positioning cavity (16).
6. A DC power shield protection device according to claim 5, characterized in that, A positioning groove (18) is provided on the left side of the inner side of the DC screen (1). The positioning groove (18) is flush with the positioning post (17). The positioning groove (18) is used in conjunction with the positioning post (17).
7. A DC power shield protection device according to claim 5, characterized in that, The rear side of the inner wall of the positioning cavity (16) and the rear side of the positioning post (17) are both provided with spring grooves (19). A spring (20) is provided inside the positioning cavity (16), and the outer side of the spring (20) is connected to the inner wall of the spring groove (19).
8. A DC power shield protection device according to claim 5, characterized in that, The positioning cavity (16) has a movable opening (21) on the right side, and a movable column (22) is movably connected inside the movable opening (21). The left side of the movable column (22) is fixedly connected to the right side of the positioning column (17).