Switching power supply with short circuit protection

Abstract

The utility model discloses a switching power supply with short circuit protection, which comprises a switching power supply body, a short circuit protector is fixedly mounted at the middle end of the top of the switching power supply body, a fixing plate is fixedly connected to the lower end of the front surface of the switching power supply body, and a wire holder is fixedly mounted at the top of the fixing plate. Limiting clamping blocks are fixedly connected to the two ends of the top of the fixing plate, a protective cover is movably connected between the surface of the fixing plate and the front surface of the switching power supply body, and pressing rods are movably connected to the lower ends of the two sides of the protective cover. According to the utility model, through the arrangement of the short-circuit protector, effective short-circuit protection can be carried out on a power supply line of the switching power supply body, and through the arrangement of the fixing plate and the protective cover, the periphery of the wiring seat can be effectively protected, thereby avoiding short circuit caused by dust attached to the surface of the wiring seat or object touch. And the short-circuit protection performance of the switching power supply body is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of switching power supplies, and particularly to a switching power supply with short-circuit protection. Background Technique

[0002] A switch-mode power supply (Switch Mode Power Supply, abbreviated as SMPS), also known as a switched power supply or a switch converter, is a high-frequency power conversion device and a type of power supply. Its function is to convert a voltage level into the voltage or current required by the user through different forms of architectures. The input of a switching power supply is mostly an AC power supply (such as mains power) or a DC power supply, and the output is mostly equipment that requires a DC power supply, such as a personal computer. The switching power supply then performs the conversion of voltage and current between the two.

[0003] For example, the Chinese utility model provides "a switch power supply that is easy to disassemble", and its publication number is: CN214046317U. This application includes a box body, a storage box clamped in the box body, a wiring seat arranged on the outer side surface of the first box body, a switch power supply mounting plate connected in the storage box, a switch power supply arranged on the switch power supply mounting plate, and four clamping structures arranged in pairs on the box body. Through the above scheme, the utility model has a simple structure and is easy to install and disassemble, and has high practical value and promotion value in the technical field of switching power supplies. Although the switching power supply in the above technology is easy to install and disassemble, due to the lack of a good protection structure around the wiring seat during use, foreign objects or dust in the outside world are likely to touch or adhere during long-term use, resulting in a short circuit, seriously affecting the safety of the overall use and operation, and being not conducive to personnel to use. Content of the Utility Model

[0004] The purpose of the utility model is to provide a switching power supply with short-circuit protection, which has the advantages of good protection effect and reduced probability of short circuit during the overall use process, and solves the problem that although the switching power supply in the above technology is easy to install and disassemble, due to the lack of a good protection structure around the wiring seat during use, foreign objects or dust in the outside world are likely to touch or adhere during long-term use, resulting in a short circuit, seriously affecting the safety of the overall use and operation.

[0005] To achieve the above object, the present utility model provides the following technical solution: A switching power supply with short - circuit protection, including a switching power supply body. A short - circuit protector is fixedly installed in the middle of the top of the switching power supply body. The lower end of the front surface of the switching power supply body is fixedly connected with a fixing plate. A wiring seat is fixedly installed on the top of the fixing plate. Limit blocks are fixedly connected to both ends of the top of the fixing plate. A protective cover is movably connected between the surface of the fixing plate and the front surface of the switching power supply body. The lower ends of both sides of the protective cover are movably connected with pressure rods. A clamping plate is fixedly connected to the side where the two pressure rods are close to each other. The bottom of the clamping plate is movably connected to the surface of the limit block. The upper end of the clamping plate is movably connected with an L - shaped fixing rod. The surface of the L - shaped fixing rod is fixedly connected to the inner cavity of the protective cover. A support spring is fixedly connected between the surface of the L - shaped fixing rod and the middle of the clamping plate.

[0006] As a preferred solution, guide grooves are provided on both sides of the fixing plate. Guide blocks are movably connected to the surfaces of the guide grooves. The surfaces of the guide blocks are fixedly connected to the lower end of the inner cavity of the protective cover.

[0007] As a preferred solution, a wire arranging port is provided on the front surface of the protective cover. A rubber ring is fixedly connected to the surface of the wire arranging port.

[0008] As a preferred solution, an iron sheet is fixedly connected to the top of the switching power supply body and in front of the short - circuit protector. A protective cover is movably connected to the top of the switching power supply body and behind the short - circuit protector through a bearing. A magnetic strip is fixedly connected to the upper end of the front surface of the protective cover.

[0009] As a preferred solution, mounting plates are fixedly connected to the lower ends of both sides of the switching power supply body. Mounting holes are provided at both ends of the mounting plates.

[0010] As a preferred solution, a heat dissipation port is provided on the right side of the switching power supply body. A dustproof net is fixedly installed on the surface of the heat dissipation port.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. Through the setting of the short - circuit protector, the power supply line of the switching power supply body can be effectively protected against short - circuits. At the same time, through the setting of the fixing plate and the protective cover, the periphery of the wiring seat can be effectively protected, avoiding short - circuits caused by dust adhering to the surface of the wiring seat or being touched by objects, further improving the short - circuit protection performance of the switching power supply body. Through the setting of the pressure rod, clamping plate, L - shaped fixing rod, support spring, limit block and protective cover, it is convenient for personnel to operate the wiring seat, bringing great convenience to the use work of personnel.

[0013] 2. By providing the guide grooves and guide blocks, the present utility model achieves the purpose of supporting and guiding between the protective cover and the fixing plate. By providing the wire arranging ports and rubber rings, it is convenient to arrange the wires connected to the wiring base, and at the same time improves the sealing performance of the contact between the wires and the wire arranging ports. By providing the protective cover, it is convenient to protect the surroundings of the short-circuit protector and prevent the short-circuit protector from being accidentally touched by personnel during use. By providing the iron sheet and magnetic strip, it is convenient to adsorb and fix the protective cover to the switch power supply body. By providing the mounting plate and mounting holes, it is convenient for personnel to install and fix the whole. By providing the heat dissipation ports and dust-proof nets, it is convenient for the heat inside the switch power supply body to dissipate to the outside, and at the same time prevents external dust from entering the inside of the switch power supply body. Description of the Drawings

[0014] Figure 1 is a perspective view of the present utility model;

[0015] Figure 2 is a schematic cross-sectional structure view of the protective cover of the present utility model;

[0016] Figure 3 is a schematic structure view of the limit clamping block of the present utility model.

[0017] In the figure: 1. Switch power supply body; 2. Iron sheet; 3. Short-circuit protector; 4. Protective cover; 5. Magnetic strip; 6. Rubber ring; 7. Wire arranging port; 8. Protective cover; 9. Pressure rod; 10. Mounting plate; 11. Heat dissipation port; 12. Limit clamping block; 13. Fixing plate; 14. Wiring base; 15. Clamping plate; 16. Guide block; 17. Guide groove; 18. Support spring; 19. L-shaped fixing rod. Detailed Embodiment

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1-3, A switching power supply with short - circuit protection, including a switching power supply body 1. A short - circuit protector 3 is fixedly installed in the middle of the top of the switching power supply body 1. The lower end of the front surface of the switching power supply body 1 is fixedly connected with a fixing plate 13. A wiring seat 14 is fixedly installed on the top of the fixing plate 13. Limit clamping blocks 12 are fixedly connected to both ends of the top of the fixing plate 13. A protective cover 8 is movably connected between the surface of the fixing plate 13 and the front surface of the switching power supply body 1. The lower ends of both sides of the protective cover 8 are movably connected with pressure rods 9. A clamping plate 15 is fixedly connected to one side where the two pressure rods 9 are close to each other. The bottom of the clamping plate 15 is movably connected to the surface of the limit clamping block 12. The upper end of the clamping plate 15 is movably connected with an L - shaped fixing rod 19. The surface of the L - shaped fixing rod 19 is fixedly connected to the inner cavity of the protective cover 8. A support spring 18 is fixedly connected between the surface of the L - shaped fixing rod 19 and the middle end of the clamping plate 15.

[0020] Through the above - mentioned technical solution, through the setting of the short - circuit protector 3, the power supply line of the switching power supply body 1 can be effectively protected against short - circuit. At the same time, through the setting of the fixing plate 13 and the protective cover 8, the periphery of the wiring seat 14 can be effectively protected, avoiding short - circuit caused by dust adhering to the surface of the wiring seat 14 or being touched by an object, further improving the short - circuit protection performance of the switching power supply body 1. Through the setting of the pressure rod 9, the clamping plate 15, the L - shaped fixing rod 19, the support spring 18, the limit clamping block 12 and the protective cover 8, it is convenient for personnel to operate the wiring seat 14, bringing great convenience to the use work of personnel.

[0021] Guide grooves 17 are opened on both sides of the fixing plate 13. Guide blocks 16 are movably connected to the surface of the guide grooves 17. The surface of the guide blocks 16 is fixedly connected to the lower end of the inner cavity of the protective cover 8.

[0022] Through the above - mentioned technical solution, through the setting of the guide grooves 17 and the guide blocks 16, the purpose of supporting and guiding between the protective cover 8 and the fixing plate 13 is achieved.

[0023] A wiring slot 7 is opened on the front surface of the protective cover 8. A rubber ring 6 is fixedly connected to the surface of the wiring slot 7.

[0024] Through the above - mentioned technical solution, through the setting of the wiring slot 7 and the rubber ring 6, it is convenient to arrange the wires connected to the wiring seat 14, and at the same time, the sealing performance of the contact between the wire and the wiring slot 7 is improved.

[0025] A iron sheet 2 is fixedly connected to the top of the switching power supply body 1 and in front of the short - circuit protector 3. A protective cover 4 is movably connected to the top of the switching power supply body 1 and behind the short - circuit protector 3 through a bearing. A magnetic strip 5 is fixedly connected to the upper end of the front surface of the protective cover 4.

[0026] Through the above technical solution, by providing the protective cover 4, it is convenient to protect the surroundings of the short-circuit protector 3 and prevent the short-circuit protector 3 from being accidentally touched by personnel during use. By providing the iron sheet 2 and the magnetic strip 5, it is convenient to adsorb and fix the protective cover 4 to the switch power supply body 1.

[0027] At the lower ends on both sides of the switch power supply body 1, mounting plates 10 are fixedly connected, and mounting holes are provided at both ends of the mounting plates 10.

[0028] Through the above technical solution, by providing the mounting plates 10 and the mounting holes, it is convenient for personnel to install and fix the whole.

[0029] A heat dissipation port 11 is provided on the right side of the switch power supply body 1, and a dust-proof net is fixedly installed on the surface of the heat dissipation port 11.

[0030] Through the above technical solution, by providing the heat dissipation port 11 and the dust-proof net, it is convenient for the heat inside the switch power supply body 1 to dissipate to the outside, and at the same time, it prevents external dust from entering the inside of the switch power supply body 1.

[0031] The working principle of the present utility model is as follows: By providing the short-circuit protector 3, it can effectively protect the power supply line of the switch power supply body 1 against short circuits. At the same time, by providing the fixing plate 13 and the protective cover 8, it can effectively protect the periphery of the wiring base 14 and prevent dust from adhering to the surface of the wiring base 14 or short circuits caused by objects touching it, further improving the short-circuit protection performance of the switch power supply body 1. And by pressing the pressing rods 9 on both sides to move, the clamping plate 15 can be driven to move. When the clamping plate 15 moves, the support spring 18 on the L-shaped fixing rod 19 can be compressed until the clamping plate 15 can fall off from the groove in the limit clamping block 12, and then personnel can slide the protective cover 8 to disengage from above the wiring base 14, thus facilitating personnel to operate on the wiring base 14 and bringing great convenience to the use work of personnel.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit the protection scope of the present utility model. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present utility model.

Claims

1. A switching power supply with short - circuit protection, comprising a switching power supply body (1), characterized in that: A short-circuit protector (3) is fixedly installed at the middle end of the top of the switching power supply body (1). At the lower end of the front surface of the switching power supply body (1), a fixing plate (13) is fixedly connected. At the top of the fixing plate (13), a wiring seat (14) is fixedly installed. At both ends of the top of the fixing plate (13), limiting blocks (12) are fixedly connected. A protective cover (8) is movably connected between the surface of the fixing plate (13) and the front surface of the switching power supply body (1). At the lower ends of both sides of the protective cover (8), pressure rods (9) are movably connected. On the side where the two pressure rods (9) are close to each other, a clamping plate (15) is fixedly connected. The bottom of the clamping plate (15) is movably connected to the surface of the limiting block (12). The upper end of the clamping plate (15) is movably connected to an L-shaped fixing rod (19). The surface of the L-shaped fixing rod (19) is fixedly connected to the inner cavity of the protective cover (8). A support spring (18) is fixedly connected between the surface of the L-shaped fixing rod (19) and the middle end of the clamping plate (15).

2. The switching power supply with short-circuit protection according to claim 1, characterized in that: Guide grooves (17) are formed on both sides of the fixing plate (13). Guide blocks (16) are movably connected to the surfaces of the guide grooves (17). The surfaces of the guide blocks (16) are fixedly connected to the lower end of the inner cavity of the protective cover (8).

3. The switching power supply with short-circuit protection according to claim 1, characterized in that: A wiring slot (7) is formed on the front surface of the protective cover (8). A rubber ring (6) is fixedly connected to the surface of the wiring slot (7).

4. The switching power supply with short-circuit protection according to claim 1, characterized in that: A iron sheet (2) is fixedly connected to the top of the switching power supply body (1) and in front of the short-circuit protector (3). A protective cover (4) is movably connected to the top of the switching power supply body (1) and behind the short-circuit protector (3) through a bearing. A magnetic strip (5) is fixedly connected to the upper end of the front surface of the protective cover (4).

5. The switching power supply with short-circuit protection according to claim 1, characterized in that: Mounting plates (10) are fixedly connected to the lower ends of both sides of the switching power supply body (1). Mounting holes are formed at both ends of the mounting plates (10).

6. The switching power supply with short-circuit protection according to claim 1, characterized in that: A heat dissipation port (11) is formed on the right side of the switching power supply body (1). A dust-proof net is fixedly installed on the surface of the heat dissipation port (11).

Images