Switching power supply

Abstract

The utility model relates to the technical field of switching power supplies, and discloses a switching power supply, which comprises a switching power supply, the edges of the two sides of the outer wall of the switching power supply are fixedly connected with mounting frames, the surfaces of the mounting frames are provided with placing grooves, the bottom surfaces of the placing grooves are internally embedded with magnetic attraction blocks, the upper ends of the magnetic attraction blocks are adsorbed with sealing magnetic attraction frames, and the sealing magnetic attraction frames are fixedly connected with the magnetic attraction blocks. A first dust filter screen is arranged on the inner wall of the sealing magnetic suction frame, and a mounting box is fixedly connected to the middle of the upper surface of the switching power supply. According to the utility model, when the switching power supply is used, the servo motor is started to drive the driving rod to rotate and drive the rear end transmission wheel and the synchronous belt to rotate at the same time, then the driven rod is driven to rotate together, and the driving rod and the driven rod rotate together so as to drive the plurality of heat dissipation blades to accelerate ventilation of the interior; heat in the power supply can be taken away more effectively, so that the temperature of key components is reduced, overheating is prevented, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of switching power supplies, in particular to a switching power supply. Background Art

[0002] As is well known, a switching power supply is an efficient power conversion device that converts the input alternating current or direct current into the required direct current through switching technology. The working principle of the switching power supply is to use high-frequency switching elements (such as MOSFET or IGBT) to quickly turn on and off the power supply, perform voltage conversion through a transformer or inductor, and at the same time adopt voltage feedback control technology to maintain the constancy of the output voltage.

[0003] However, traditional switching power supplies usually rely on multiple ventilation slots. Although this method can provide a certain degree of air circulation, since the heat sources inside the switching power supply (such as transformers and switching tubes, etc.) are usually concentrated in specific areas, it causes local temperature rise. If the distribution of the heat dissipation slots is not uniform enough, some parts will face the problem of heat accumulation, resulting in a significant decline in the heat dissipation effect. Therefore, there is an urgent need for technical improvement. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a switching power supply is proposed. When this switching power supply is in use, by starting the servo motor to drive the active rod to rotate, the rear transmission wheel and the synchronous belt are driven to rotate at the same time, and then the driven rod is driven to rotate together. By the simultaneous rotation of the active rod and the driven rod, a plurality of heat dissipation blades are driven to accelerate the ventilation inside, which can more effectively take away the heat inside the power supply, thereby reducing the temperature of key components, preventing overheating, and prolonging the service life of the equipment.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A switching power supply, including a switching power supply, both edges on the outer walls of the switching power supply are fixedly connected with mounting frames. A placement groove is provided on the surface of the mounting frame. A magnetic absorption block is embedded in the bottom surface of the placement groove. A sealed magnetic absorption frame is adsorbed on the upper end of the magnetic absorption block. A dust filter screen one is arranged on the inner wall of the sealed magnetic absorption frame;

[0007] In the middle of the upper surface of the switching power supply, a mounting box is fixedly connected. Storage grooves are provided at the front end and the rear end of the lower surface of the mounting box. The adjacent sides of the two storage grooves are connected through. In the middle of the top surface of the rear storage groove, a servo motor is fixedly connected. The output end of the servo motor is fixedly connected with an active rod. The middle of the top surface of the front storage groove is rotatably connected with a driven rod.

[0008] Through the above technical solution, compared with the existing switching power supply, when the switching power supply is in use, the dust filter screen one and the dust filter screen two facilitate preventing the entry of external dust during ventilation, thereby reducing the risk of contamination of the internal components of the power supply. The adsorption of the magnetic attraction block and the sealed magnetic attraction frame facilitates the replacement or cleaning of the dust filter screen one, thereby preventing the accumulation of dust, and the practical performance is relatively high.

[0009] Further, a plurality of wiring terminals are provided at the front end of the bottom surface of the switching power supply;

[0010] Through the above technical solution, the wiring terminals are used to connect with external power lines or devices to facilitate the input and output of the power supply.

[0011] Further, a plurality of ventilation slots are opened at the front and rear ends of both sides of the outer wall of the switching power supply, and air inlet slots are opened at the front and rear ends of the upper surface of the switching power supply;

[0012] Through the above technical solution, the ventilation slots and the air inlet slots facilitate the circulation of gas.

[0013] Further, a push slot is opened at the upper part of the outer wall of one side of the sealed magnetic attraction frame away from the center of the switching power supply;

[0014] Through the above technical solution, the push slot facilitates the taking of the sealed magnetic attraction frame.

[0015] Further, transmission wheels are sleeved in the middle of the main rod and the driven rod, and a synchronous belt is sleeved on the outer wall of the transmission wheel;

[0016] Through the above technical solution, the main rod and the driven rod are facilitated to rotate together through the transmission wheel and the synchronous belt.

[0017] Further, a plurality of radiating fins are fixedly connected to the lower ends of the main rod and the driven rod;

[0018] Through the above technical solution, the circulation of the internal gas is accelerated by the plurality of radiating fins.

[0019] Further, air circulation slots are opened at the front and rear ends of the upper surface of the installation box, and dust filter screens two are arranged inside the air circulation slots;

[0020] Through the above technical solution, the dust filter screen two facilitates preventing the entry of external dust during gas circulation.

[0021] The utility model has the following beneficial effects:

[0022] 1. A switching power supply proposed by the present utility model. Compared with the existing switching power supply, when this switching power supply is in use, by starting the servo motor to drive the rotation of the driving rod, the rear transmission wheel and the synchronous belt are driven to rotate at the same time, and then the driven rod is driven to rotate together. By the simultaneous rotation of the driving rod and the driven rod, a plurality of heat dissipation fins are driven to accelerate the ventilation inside, which can more effectively take away the heat inside the power supply, thereby reducing the temperature of key components, preventing overheating, and prolonging the service life of the equipment.

[0023] 2. A switching power supply proposed by the present utility model. Compared with the existing switching power supply, when this switching power supply is in use, the dust filter net one and the dust filter net two facilitate preventing the entry of external dust during ventilation, thereby reducing the risk of contamination of the internal components of the power supply. The adsorption of the magnetic attraction block and the sealed magnetic attraction frame facilitates the replacement or cleaning of the dust filter net one, thereby preventing the accumulation of dust, and the practical performance is relatively high. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Is an axonometric view of a switching power supply proposed by the present utility model;

[0025] Figure 2 Is an exploded view of the sealed magnetic attraction frame in a switching power supply proposed by the present utility model;

[0026] Figure 3 Is an axial sectional view of the installation box in a switching power supply proposed by the present utility model;

[0027] Figure 4 Is Figure 2 An enlarged view of part A in

[0028] Figure 5 Is Figure 3 An enlarged view of part B in

[0029] LEGEND DESCRIPTION:

[0030] 1. Switching power supply; 11. Wiring terminal; 12. Ventilation slot; 13. Air inlet slot; 2. Installation frame; 21. Placement slot; 22. Magnetic attraction block; 23. Sealed magnetic attraction frame; 24. Dust filter net one; 25. Push slot; 3. Installation box; 31. Flow-through slot; 32. Dust filter net two; 33. Storage slot; 34. Servo motor; 35. Driving rod; 36. Driven rod; 37. Transmission wheel; 38. Synchronous belt; 39. Heat dissipation fin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] Referring to Figures 1-5 , an embodiment provided by the present invention is as follows:

[0033] A switching power supply includes a switching power supply 1. Installation frames 2 are fixedly connected to the edges on both sides of the outer wall of the switching power supply 1. A placement groove 21 is formed on the surface of the installation frame 2. A magnetic attraction block 22 is embedded in the bottom surface of the placement groove 21. A sealed magnetic attraction frame 23 is adsorbed on the upper end of the magnetic attraction block 22. A dust filter screen 24 is arranged on the inner wall of the sealed magnetic attraction frame 23.

[0034] In the middle of the upper surface of the switching power supply 1, an installation box 3 is fixedly connected. Storage grooves 33 are formed at the front end and the rear end of the lower surface of the installation box 3. One side adjacent to the two storage grooves 33 is connected through. In the middle of the top surface of the rear storage groove 33, a servo motor 34 is fixedly connected. The output end of the servo motor 34 is fixedly connected with a driving rod 35. The middle of the top surface of the front storage groove 33 is rotatably connected with a driven rod 36.

[0035] Compared with the existing switching power supply, when this switching power supply is in use, the dust filter screen 24 and the dust filter screen 32 facilitate preventing the entry of external dust during ventilation, thereby reducing the risk of contamination of the internal components of the power supply. The adsorption of the magnetic attraction block 22 and the sealed magnetic attraction frame 23 facilitates the replacement or cleaning of the dust filter screen 24, thereby preventing the accumulation of dust, and the practical performance is relatively high.

[0036] A plurality of wiring terminals 11 are provided at the front end of the bottom surface of the switching power supply 1. The wiring terminals 11 are used to connect to external power lines or devices, facilitating the input and output of power. A plurality of ventilation slots 12 are provided at the front and rear ends of both sides of the outer wall of the switching power supply 1. Air inlet slots 13 are provided at the front and rear ends of the upper surface of the switching power supply 1. The ventilation slots 12 and the air inlet slots 13 facilitate the circulation of gas. Push slots 25 are provided at the upper parts of the outer walls on one side of the sealing magnetic frame 23 away from the center of the switching power supply 1. The push slots 25 facilitate the taking of the sealing magnetic frame 23. Transmission wheels 37 are sleeved in the middle parts of the main rod 35 and the driven rod 36. A synchronous belt 38 is sleeved on the outer walls of the transmission wheels 37. The main rod 35 and the driven rod 36 are rotated together by the transmission wheels 37 and the synchronous belt 38. A plurality of heat dissipation fins 39 are fixedly connected to the lower ends of the main rod 35 and the driven rod 36. The plurality of heat dissipation fins 39 facilitate the acceleration of the internal gas circulation. Circulation slots 31 are provided at the front and rear ends of the upper surface of the installation box 3. Dust filters II 32 are arranged inside the circulation slots 31. The dust filters II 32 facilitate the prevention of external dust from entering during gas circulation.

[0037] Working principle: During use, when the servo motor 34 is started, it drives the main rod 35 to rotate, and at the same time drives the rear transmission wheel 37 and the synchronous belt 38 to rotate, and then drives the driven rod 36 to rotate together. The main rod 35 and the driven rod 36 rotate together to drive a plurality of heat dissipation fins 39 to accelerate the ventilation inside, which can more effectively take away the heat inside the power supply, thereby reducing the temperature of key components, preventing overheating, and extending the service life of the device. The dust filter I 24 and the dust filter II 32 facilitate the prevention of external dust from entering during ventilation, thereby reducing the risk of pollution of internal components of the power supply. The dust filter I 24 can be replaced or cleaned by the adsorption of the magnetic block 22 and the sealing magnetic frame 23, thereby preventing the accumulation of dust.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A switching power supply, comprising a switching power supply (1), characterized in that: On both sides of the outer wall of the switching power supply (1) at the edges, mounting frames (2) are fixedly connected. A placement groove (21) is formed on the surface of the mounting frame (2). A magnetic attraction block (22) is embedded in the bottom surface of the placement groove (21). A sealed magnetic attraction frame (23) is attracted to the upper end of the magnetic attraction block (22). A dust filter net one (24) is arranged on the inner wall of the sealed magnetic attraction frame (23). In the middle of the upper surface of the switching power supply (1), a mounting box (3) is fixedly connected. Storage grooves (33) are formed at the front end and the rear end of the lower surface of the mounting box (3). One side adjacent to the two storage grooves (33) is connected through. In the middle of the top surface of the rear storage groove (33), a servo motor (34) is fixedly connected. The output end of the servo motor (34) is fixedly connected with a driving rod (35). In the middle of the top surface of the front storage groove (33), a driven rod (36) is rotatably connected.

2. The switching power supply according to claim 1, characterized in that: At the front end of the bottom surface of the switching power supply (1), a plurality of wiring terminals (11) are arranged.

3. A switching power supply according to claim 1, characterized in that: A plurality of ventilation grooves (12) are formed at the front end and the rear end of both sides of the outer wall of the switching power supply (1). Air inlet grooves (13) are formed at the front end and the rear end of the upper surface of the switching power supply (1).

4. A switching power supply according to claim 1, characterized in that: On the upper part of the outer wall of one side of the sealed magnetic attraction frame (23) far from the center of the switching power supply (1), a pushing groove (25) is formed.

5. A switching power supply according to claim 1, characterized in that: Drive wheels (37) are sleeved in the middle of the driving rod (35) and the driven rod (36). A synchronous belt (38) is sleeved on the outer wall of the drive wheel (37).

6. A switching power supply according to claim 1, characterized in that: A plurality of heat dissipation fins (39) are fixedly connected to the lower ends of the driving rod (35) and the driven rod (36).

7. A switching power supply according to claim 1, characterized in that: Flow grooves (31) are formed at the front end and the rear end of the upper surface of the mounting box (3). Dust filter nets two (32) are arranged inside the flow grooves (31).

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