Direct-current power distribution protection device

Abstract

The utility model relates to the field of power equipment, and especially relates to a DC power distribution protection device. The direct-current power distribution protection device comprises a cabinet body, sliding rails and a placement groove, the interior of the cabinet body is divided into a plurality of storage grooves, drawable drawers are arranged in the storage grooves, independent modules such as a main control module, a protection module, a switch module and a communication module are loaded in each drawer, the sliding rails are symmetrically installed in one drawer, and the placement groove is formed in the other drawer. A screw hole is formed in the inner wall of the drawer on one side of the sliding rail and corresponds to the connecting hole in the main control module. According to the utility model, by adopting the drawer type module design, the main control module, the protection module, the switch module, the communication module and the like are independently packaged in respective drawers, so that the maintainability and the expandability of the system are greatly improved; when a certain module breaks down or needs to be upgraded, only the corresponding drawer needs to be replaced or upgraded independently, the whole device does not need to be disassembled or replaced, and the maintenance cost and the downtime are greatly reduced.

Description

Technical Field

[0001] The utility model relates to the field of power equipment, in particular to a DC distribution protection device. Background Art

[0002] With the rapid development of power electronics technology, DC distribution systems play an increasingly important role in modern power systems; as a key component of DC distribution systems, the stability and reliability of the performance of DC distribution protection devices are crucial for the safe operation of the entire system; however, traditional DC distribution protection devices have some deficiencies in design and structure, such as unreasonable module layout, difficult maintenance, poor heat dissipation performance, etc., and these problems have limited the performance and application scope of DC distribution protection devices to a certain extent;

[0003] First of all, traditional DC distribution protection devices often adopt a fixed module layout, that is, each functional module is directly installed inside the cabinet, and this layout makes the replacement and maintenance of modules very difficult, which not only increases the maintenance cost but also affects the reliability of the system;

[0004] Secondly, traditional DC distribution protection devices have deficiencies in heat dissipation performance; due to the close arrangement between modules and the lack of effective heat dissipation measures, the modules are prone to overheating during operation, thereby affecting their performance and lifespan;

[0005] In addition, traditional DC distribution protection devices also have certain limitations in dust prevention and anti-static; the accumulation of dust will not only affect the heat dissipation performance of the equipment but may also cause the equipment to short-circuit or be damaged; and the interference of static electricity may damage the internal modules and affect the normal operation of the equipment.

[0006] Therefore, it is necessary to provide a new DC distribution protection device to solve the above technical problems. Content of the Utility Model

[0007] To solve the above technical problems, the utility model provides a DC distribution protection device.

[0008] The DC distribution protection device provided by the utility model includes: a cabinet, slide rails and placement grooves. The interior of the cabinet is divided into multiple storage grooves, and each storage groove is provided with a drawer that can be pulled out. Each drawer contains independent modules, such as a main control module, a protection module, a switch module, and a communication module. The slide rails are symmetrically installed inside one of the drawers, and screw holes are provided on the inner wall of the drawer on one side of the slide rails, corresponding to the connection holes on the main control module. A number of placement grooves are equidistantly opened inside the other three drawers, and PCB slots are installed inside the placement grooves, and the protection module, the switch module, and the communication module are respectively inserted into the placement grooves inside each drawer.

[0009] Preferably, the drawer is divided into a frame and a pull plate, the frame and the pull plate are hinged, ear plates are fixedly connected to one side of the frame and the pull plate respectively, insertion holes are provided between the two ear plates, a pin is inserted between the two insertion holes, and heat dissipation fans are equidistantly arranged on one side of the frame.

[0010] Preferably, reset springs are symmetrically and fixedly connected to the inner wall of the placement groove. The two reset springs provide an ejecting elastic force for the protection module, the switch module or the communication module. A groove is provided on the inner wall of the placement groove, a limiting spring is fixedly connected to the inner wall of the groove, one end of the limiting spring is fixedly connected with a sliding block, the sliding block is slidably connected to the inner wall of the groove, a clamping block is fixedly connected to the side of the sliding block away from the limiting spring, a sliding groove is provided on the inner wall of the groove, and the clamping block is clamped with one side of the protection module, the switch module or the communication module. A dial block is fixedly connected to the outer wall of the sliding block, and the dial block is slidably connected to the sliding groove.

[0011] Preferably, an indicator light is installed on one side of the pull plate, and the indicator light is electrically connected to the module in the drawer for displaying the working state of the corresponding module.

[0012] Preferably, a touch screen is provided on the outside of the cabinet body for displaying and controlling the working parameters and states of the DC power distribution protection device.

[0013] Preferably, a pulling groove is provided on one side of the pull plate to facilitate the pulling of the drawer.

[0014] Preferably, an anti-static pad is provided inside the drawer to prevent static electricity from damaging the internal modules.

[0015] Preferably, heat dissipation holes and dust-proof nets are provided on the front and rear sides of the cabinet body to improve the heat dissipation effect and prevent dust from entering.

[0016] Compared with the related technology, the DC power distribution protection device provided by the present utility model has the following beneficial effects:

[0017] Modular design: By adopting a drawer-type module design, the main control module, the protection module, the switch module, the communication module, etc. are independently encapsulated in their respective drawers, greatly improving the maintainability and expandability of the system; when a certain module fails or needs to be upgraded, only the corresponding drawer needs to be replaced or upgraded separately, without disassembling or replacing the entire device, greatly reducing the maintenance cost and downtime;

[0018] Convenient maintenance operation: A pulling groove is provided on the pull plate of the drawer, which is convenient for users to easily pull the drawer for module replacement and maintenance; at the same time, the frame and the pull plate of the drawer are connected by hinges and pins, ensuring the stability and easy operation of the drawer;

[0019] Good heat dissipation performance: The equally spaced heat dissipation fans on one side of the drawer can effectively improve the heat dissipation performance of the module, preventing performance degradation or damage caused by overheating of the module. In addition, the heat dissipation holes and dust-proof nets on the front and back sides of the cabinet further improve the heat dissipation effect of the entire device, ensuring the stable operation of the system;

[0020] Dust-proof and anti-static: The anti-static pad set inside the drawer can effectively prevent static electricity from damaging the internal modules, while the dust-proof nets on the front and back sides of the cabinet can effectively prevent dust from entering the inside of the device, ensuring the cleanliness and normal operation of the system;

[0021] Intuitive monitoring and control: The touch screen on the outside of the cabinet provides an intuitive operation interface. Users can view the working parameters of the device, set the working status, control the switch, etc. through the touch screen, realizing convenient monitoring and control of the DC power distribution protection device. Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of the DC power distribution protection device provided by the present utility model;

[0023] Figure 2 is Figure 1 a schematic structural diagram of the inside of the cabinet shown;

[0024] Figure 3 is Figure 1 a schematic structural diagram of one of the drawers shown;

[0025] Figure 4 is Figure 1 a schematic structural diagram of another drawer shown;

[0026] Figure 5 is Figure 1 a schematic structural diagram of the partial cross-section of the inside of the placement groove shown.

[0027] Reference numerals in the figures: 1, cabinet; 2, storage groove; 3, drawer; 4, slide rail; 5, screw hole; 6, placement groove; 8, touch screen; 9, pulling groove; 31, frame; 32, pulling plate; 33, ear plate; 34, jack; 35, bolt; 36, heat dissipation fan; 61, return spring; 62, groove; 63, limit spring; 64, slider; 65, block; 66, chute; 67, dialing block. Detailed Embodiment

[0028] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0029] The following is a detailed description of the specific implementation of the present utility model in combination with specific embodiments.

[0030] Please refer to Figures 1-5 , a DC power distribution protection device, the DC power distribution protection device includes: a cabinet body 1, slide rails 4 and placement grooves 6. The interior of the cabinet body 1 is divided into multiple storage grooves 2. Each storage groove 2 is provided with a drawer 3 that can be pulled out. Each drawer 3 contains independent modules, such as a main control module, a protection module, a switch module, and a communication module. The slide rails 4 are symmetrically installed inside one of the drawers 3, and a screw hole 5 is opened on the inner wall of the drawer 3 on one side of the slide rail 4. The screw hole 5 corresponds to the connection hole on the main control module. A number of placement grooves 6 are equidistantly opened inside the other three drawers 3. A PCB slot is installed inside the placement groove 6, and the protection module, switch module, and communication module are respectively inserted into the placement grooves 6 inside each drawer 3. A touch screen 8 is provided on the outside of the cabinet body 1 for displaying and controlling the working parameters and status of the DC power distribution protection device. Heat dissipation holes and dust-proof nets are provided on the front and back sides of the cabinet body 1 to improve the heat dissipation effect and prevent dust from entering.

[0031] Please refer to Figures 3-5 , the drawer 3 is divided into a frame 31 and a pull plate 32. The frame 31 and the pull plate 32 are hinged. One side of the frame 31 and the pull plate 32 are both fixedly connected with ear plates 33. An insertion hole 34 is opened between the two ear plates 33. A pin 35 is inserted between the two insertion holes 34. Heat dissipation fans 36 are equidistantly opened on one side of the frame 31. An indicator light is installed on one side of the pull plate 32. The indicator light is electrically connected to the module inside the drawer 3 for displaying the working status of the corresponding module. A pulling groove 9 is opened on one side of the pull plate 32 to facilitate pulling out the drawer 3. An anti-static pad is provided inside the drawer 3 to prevent static electricity from damaging the internal modules.

[0032] Please refer to Figures 3-5 , the inner wall of the placement groove 6 is symmetrically and fixedly connected with a return spring 61. The two return springs 61 provide an ejecting elastic force for the protection module, switch module, or communication module. A groove 62 is opened on the inner wall of the placement groove 6. A limiting spring 63 is fixedly connected to the inner wall of the groove 62. One end of the limiting spring 63 is fixedly connected with a slider 64. The slider 64 is slidably connected to the inner wall of the groove 62. One side of the slider 64 away from the limiting spring 63 is fixedly connected with a clamping block 65. A sliding groove 66 is opened on the inner wall of the groove 62. The clamping block 65 is clamped with one side of the protection module, switch module, or communication module. A dial block 67 is fixedly connected to the outer wall of the slider 64. The dial block 67 is slidably connected to the sliding groove 66.

[0033] The working principle of the DC power distribution protection device provided by the present utility model is as follows:

[0034] Module layout and installation:

[0035] The interior of the cabinet body 1 is divided into multiple storage slots 2, and a drawer 3 that can be pulled out is provided in each storage slot 2;

[0036] The interior of the drawer 3 is loaded with independent modules, including a main control module, a protection module, a switch module, a communication module, etc.;

[0037] The main control module is installed inside one of the drawers 3 through a slide rail 4 and is connected to the screw holes 5 on the inner wall of the drawer 3 through the screw holes 5 to achieve fixation;

[0038] The interiors of the other drawers 3 are provided with placement slots 6 for installing the protection module, the switch module, the communication module, etc., and these modules are connected to the placement slots 6 inside the drawer 3 through PCB slots;

[0039] Design and operation of the drawer 3:

[0040] The drawer 3 is composed of a frame 31 and a pull plate 32, and the two are connected by hinges, allowing the pull plate 32 to rotate relative to the frame 31;

[0041] Earmuffs 33 are fixed on one side of the frame 31 and the pull plate 32, and jacks 34 are provided on the earmuffs 33 and are connected through a bolt 35, so that the pull plate 32 can be fixed on the frame 31 to ensure the integrity of the drawer 3;

[0042] A heat dissipation fan 36 is provided on one side of the drawer 3 to improve the heat dissipation performance of the module;

[0043] Indicator lights are provided on the pull plate 32 to display the working status of the modules inside the drawer 3, facilitating user monitoring;

[0044] Module installation and fixation:

[0045] A return spring 61 and a limiting mechanism (including a limiting spring 63, a slider 64, a clamping block 65, a sliding groove 66 and a dial block 67) are provided on the inner wall of the placement slot 6, and these mechanisms work together to firmly fix the module in the placement slot 6 and provide an ejecting elastic force to facilitate the installation and disassembly of the module;

[0046] Operation and control:

[0047] A touch screen 8 is provided on the outside of the cabinet body 1, and the user can operate and control the DC power distribution protection device through the touch screen 8, including viewing working parameters, setting working status, controlling switches, etc.;

[0048] A pull groove 9 is provided on the pull plate 32 of the drawer 3 to facilitate the user to pull out the drawer 3 for module replacement and maintenance;

[0049] Dust prevention and heat dissipation:

[0050] There are heat dissipation holes and dust-proof nets on the front and back sides of the cabinet body 1. The heat dissipation holes are used to improve the heat dissipation performance of the cabinet body 1, and the dust-proof net prevents dust from entering the interior of the cabinet body 1 and affecting the normal operation of the equipment;

[0051] An anti-static pad is provided inside the drawer 3 to prevent static electricity from damaging the internal modules.

[0052] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A DC power distribution protection device, characterized in that: include: A cabinet (1), wherein the interior of the cabinet (1) is divided into a plurality of storage slots (2), each storage slot (2) is provided with a drawer (3) that can be pulled out, and each drawer (3) is loaded with an independent module, such as a main control module, a protection module, a switch module, and a communication module; A slide rail (4), the slide rail (4) being symmetrically mounted inside one of the drawers (3), and a screw hole (5) being provided on an inner wall of the drawer (3) on one side of the slide rail (4), the screw hole (5) corresponding to a connection hole on the main control module; A plurality of placement slots (6) are equidistantly arranged inside the other three drawers (3), a PCB slot is installed inside the placement slots (6), and a protection module, a switch module, and a communication module are respectively plugged into the placement slots (6) inside each drawer (3).

2. The DC power distribution protection device according to claim 1, characterized in that: The drawer (3) is divided into a frame (31) and a pull plate (32), the frame (31) and the pull plate (32) are hinged, one side of the frame (31) and the pull plate (32) are fixedly connected with an ear plate (33), a plug hole (34) is provided between the two ear plates (33), a latch (35) is plugged between the two plug holes (34), and a cooling fan (36) is provided at an equal distance on one side of the frame (31).

3. The DC power distribution protection device according to claim 1, characterized in that: The inner wall of the placement groove (6) is symmetrically fixedly connected with return springs (61), and the two return springs (61) provide elastic force for ejecting the protection module, the switch module or the communication module. The inner wall of the placement groove (6) is provided with a groove (62), and the inner wall of the groove (62) is fixedly connected with a limit spring (63), one end of the limit spring (63) is fixedly connected with a slider (64), and the slider (64) is slidably connected to the inner wall of the groove (62), and a clamping block (65) is fixedly connected to the side of the slider (64) away from the limit spring (63), and a sliding groove (66) is provided on the inner wall of the groove (62), and the clamping block (65) is clamped with one side of the protection module, the switch module or the communication module, and a shifting block (67) is fixedly connected to the outer wall of the slider (64), and the shifting block (67) is slidably connected to the sliding groove (66).

4. The DC power distribution protection device according to claim 2, characterized in that: An indicator light is installed on one side of the pull plate (32), and the indicator light is electrically connected to the module in the drawer (3) and is used to display the working status of the corresponding module.

5. The DC power distribution protection device according to claim 1, characterized in that: A touch screen (8) is provided on the outside of the cabinet (1) for displaying and controlling the working parameters and status of the DC power distribution protection device.

6. The DC power distribution protection device according to claim 1, characterized in that: A pull groove (9) is provided on one side of the pull plate (32) to facilitate pulling out the drawer (3).

7. The DC power distribution protection device according to claim 1, characterized in that: An anti-static pad is provided inside the drawer (3) to prevent static electricity from damaging the internal modules.

8. The DC power distribution protection device according to claim 1, characterized in that: The cabinet (1) is provided with heat dissipation holes and dust screens on the front and rear sides to improve the heat dissipation effect and prevent dust from entering.

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