Improved electronic transformer

Abstract

The utility model discloses an improved electronic transformer, which relates to the field of electronic transformers, and comprises an electronic transformer main body, a connecting heat dissipation assembly is fixedly sleeved on the electronic transformer main body, the connecting heat dissipation assembly consists of a U-shaped substrate and U-shaped heat dissipation fins, the U-shaped heat dissipation fins are fixedly arranged on the outer wall of the U-shaped substrate, and the U-shaped heat dissipation fins are fixedly arranged on the outer wall of the U-shaped substrate. Two heat dissipation fans are symmetrically and fixedly installed at the upper end of the connection heat dissipation assembly, two pre-fixing assemblies are symmetrically and fixedly installed at the lower end of the connection heat dissipation assembly, each pre-fixing assembly is composed of a connection substrate and a polyimide adhesive tape layer, and the polyimide adhesive tape layers are fixedly installed at the lower end of the connection substrate; the connection heat dissipation assembly is arranged on the electronic transformer main body, and the heat dissipation fan is arranged on the connection heat dissipation assembly, so that the heat dissipation efficiency of the electronic transformer main body can be improved, heat accumulation on the electronic transformer main body is reduced, and long-term stable operation of the electronic transformer main body can be guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic transformer field, especially a kind of improved electronic transformer. BACKGROUND

[0002] Electronic transformer is the device for realizing electric energy conversion by electromagnetic induction principle, mainly for voltage transformation, isolation, impedance matching etc. Its core is composed of magnetic core (such as ferrite, silicon steel sheet) and winding (copper wire or PCB trace), and magnetic field is generated in magnetic core by alternating current when working, thereby voltage is induced in secondary winding.

[0003] In the installation process of electronic transformer, when its pin is inserted into circuit board welding hole for welding, the device is easily affected by external force and displaced. This instability can lead to a variety of welding defects, including poor phenomena such as cold soldering, cold welding, etc. In severe cases, it can even cause pin misplacement, pad damage or damage to peripheral components. In addition, since electronic transformer will produce significant heat accumulation under normal working condition, in order to ensure its long-term reliable operation, electronic transformer needs to have good heat dissipation performance. Therefore, the present application proposes an improved electronic transformer. SUMMARY

[0004] The main purpose of the utility model is to provide an improved electronic transformer, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is:

[0006] An improved electronic transformer, comprising an electronic transformer body, a connecting heat dissipation assembly is fixedly sleeved on the electronic transformer body, the connecting heat dissipation assembly is composed of a U-shaped base plate and a U-shaped heat dissipation fin, the U-shaped heat dissipation fin is fixedly installed on the outer wall of the U-shaped base plate, two heat dissipation fans are symmetrically fixedly installed on the upper end of the connecting heat dissipation assembly, two pre-fixing assemblies are symmetrically fixedly installed on the lower end of the connecting heat dissipation assembly, the pre-fixing assembly is composed of a connecting base plate and a polyimide adhesive tape layer, and the polyimide adhesive tape layer is fixedly installed on the lower end of the connecting base plate.

[0007] Preferably, the electronic transformer body is fixedly installed with a transformer pin.

[0008] Preferably, the U-shaped base plate on the connecting heat dissipation assembly is fixedly sleeved on the electronic transformer body, a plurality of heat dissipation through holes are formed in the U-shaped base plate, and the heat dissipation through holes penetrate in and out of the U-shaped base plate.

[0009] Preferably, the U-shaped heat dissipation fins on the connecting heat dissipation assembly are evenly distributed on the outer wall of the U-shaped base plate, and the outer ends of the two outermost U-shaped heat dissipation fins are fixedly provided with four mounting base plates, and the mounting base plates are provided with first through holes.

[0010] Preferably, the second through holes are symmetrically arranged on the heat dissipation fan, and the heat dissipation fan is arranged at the upper end of the U-shaped heat dissipation fin and the mounting base plate, and the heat dissipation fan is fixedly connected with the mounting base plate through bolts.

[0011] Preferably, the connecting base plate of the pre-fixing assembly is fixedly arranged at the lower end of the U-shaped base plate, and the lower end of the polyimide adhesive tape layer is flush with the lower end of the electronic transformer body.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] (1) By arranging the connecting heat dissipation assembly on the electronic transformer body and arranging the heat dissipation fan on the connecting heat dissipation assembly, the heat dissipation efficiency of the electronic transformer body can be improved, thereby reducing the accumulation of heat on the electronic transformer body, and the long-term stable operation of the electronic transformer body can be ensured.

[0014] (2) By arranging the pre-fixing assembly on the connecting heat dissipation assembly, the pre-fixing assembly can pre-fix the electronic transformer body on the circuit board, thereby avoiding displacement of the electronic transformer body and the transformer pin caused by external force when the transformer pin on the electronic transformer body is inserted into the soldering hole of the circuit board for welding, thereby reducing the generation of welding defects, and also reducing the probability of transformer pin misplacement, pad damage or damage of surrounding components. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the electronic transformer body, the transformer pin, the U-shaped base plate and the pre-fixing assembly of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the heat dissipation fan and the connecting heat dissipation assembly after being split;

[0018] Figure 4 It is a schematic diagram of the structure of the connecting heat dissipation assembly of the utility model.

[0019] In the figure: 1, electronic transformer main body; 2, connecting heat dissipation assembly; 3, heat dissipation fan; 4, pre-fixing assembly; 5, transformer pin; 6, U-shaped base plate; 7, heat dissipation through hole; 8, U-shaped heat dissipation fin; 9, mounting base plate; 10, first through hole; 11, second through hole; 12, connecting base plate; 13, polyimide adhesive tape layer. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0021] Please refer to Figure 1 Figure 4 As shown in the figure, an improved electronic transformer, including electronic transformer main body 1, electronic transformer main body 1 is fixedly provided with connecting heat dissipation assembly 2, connecting heat dissipation assembly 2 is composed of U-shaped base plate 6 and U-shaped heat dissipation fin 8, U-shaped heat dissipation fin 8 is fixedly installed on the outer wall of U-shaped base plate 6, the upper end of connecting heat dissipation assembly 2 is symmetrically fixedly provided with two heat dissipation fans 3, the lower end of connecting heat dissipation assembly 2 is symmetrically fixedly provided with two pre-fixing assemblies 4, pre-fixing assembly 4 is composed of connecting base plate 12 and polyimide adhesive tape layer 13, polyimide adhesive tape layer 13 is fixedly installed at the lower end of connecting base plate 12, transformer pin 5 is fixedly installed on electronic transformer main body 1, when electronic transformer main body 1 is installed on the circuit board, transformer pin 5 can be inserted into the circuit board welding hole, at the same time, pre-fixing assembly 4 is in contact with the circuit board, at this time, under the adhesion of polyimide adhesive tape layer 13, electronic transformer main body 1 and transformer pin 5 are pre-fixed on the circuit board, then transformer pin 5 can be welded; when electronic transformer main body 1 works, the heat on electronic transformer main body 1 is transmitted to connecting heat dissipation assembly 2, and working heat dissipation fan 3 can accelerate the flow of air around electronic transformer main body 1 and connecting heat dissipation assembly 2, so that the heat emitted by electronic transformer main body 1 during work can be quickly dissipated.

[0022] ​Specifically, the U-shaped base plate 6 on the connecting heat dissipation assembly 2 is fixedly sleeved on the electronic transformer body 1, a plurality of heat dissipation through holes 7 are formed in the U-shaped base plate 6, the heat dissipation through holes 7 penetrate the U-shaped base plate 6, a plurality of U-shaped heat dissipation fins 8 on the connecting heat dissipation assembly 2 are uniformly distributed on the outer wall of the U-shaped base plate 6, the outer ends of the two outermost U-shaped heat dissipation fins 8 are fixedly provided with four mounting base plates 9, first through holes 10 are formed in the mounting base plates 9, second through holes 11 are symmetrically formed in the heat dissipation fan 3, the heat dissipation fan 3 is located at the upper end of the U-shaped heat dissipation fin 8 and the mounting base plate 9, and the heat dissipation fan 3 is fixedly connected with the mounting base plate 9 through bolts. The heat generated by the working electronic transformer body 1 is transmitted to the U-shaped heat dissipation fin 8 through the U-shaped base plate 6. Since the U-shaped base plate 6 and the U-shaped heat dissipation fin 8 have a large air contact area, the U-shaped base plate 6 and the U-shaped heat dissipation fin 8 can quickly dissipate heat to the surrounding air. Then, the working heat dissipation fan 3 can accelerate the flow of air around the electronic transformer body 1 and the connecting heat dissipation assembly 2, so that the hot air around the electronic transformer body 1 and the connecting heat dissipation assembly 2 can quickly dissipate, thereby keeping the air temperature around the electronic transformer body 1 and the connecting heat dissipation assembly 2 low, and finally facilitating the heat dissipation of the electronic transformer body 1.

[0023] Therefore, by arranging the connecting heat dissipation assembly 2 on the electronic transformer body 1 and arranging the heat dissipation fan 3 on the connecting heat dissipation assembly 2, the heat dissipation efficiency of the electronic transformer body 1 can be improved, thereby reducing the accumulation of heat on the electronic transformer body 1, and further ensuring the long-term stable operation of the electronic transformer body 1.

[0024] Specifically, the connecting base plate 12 on the pre-fixing assembly 4 is fixedly installed at the lower end of the U-shaped base plate 6, the lower end of the polyimide adhesive tape layer 13 is flush with the lower end of the electronic transformer body 1, the polyimide adhesive tape layer 13 can withstand high temperature and has strong insulation, so the presence of the polyimide adhesive tape layer 13 will not affect the normal use of the electronic transformer body 1.

[0025] Therefore, by arranging the pre-fixing assembly 4 on the connecting heat dissipation assembly 2, the pre-fixing assembly 4 can pre-fix the electronic transformer body 1 on the circuit board, thereby avoiding displacement of the electronic transformer body 1 and the transformer pin 5 caused by external force when the transformer pin 5 on the electronic transformer body 1 is inserted into the solder hole of the circuit board for welding, thereby reducing the generation of welding defects, and also reducing the probability of misplacement of the transformer pin 5, damage of the solder pad or damage of the surrounding components.

[0026] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or equivalently replace some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application. The protection scope of the present application is defined by the appended claims and equivalents thereof.

Claims

1. An improved electronic transformer comprising an electronic transformer body (1), characterized by: The electronic transformer body (1) is fixedly provided with a connecting heat dissipation assembly (2), the connecting heat dissipation assembly (2) is composed of a U-shaped base plate (6) and a U-shaped heat dissipation fin (8), the U-shaped heat dissipation fin (8) is fixedly installed on the outer wall of the U-shaped base plate (6), the upper end of the connecting heat dissipation assembly (2) is fixedly provided with two heat dissipation fans (3) in a symmetrical mode, the lower end of the connecting heat dissipation assembly (2) is fixedly provided with two pre-fixing assemblies (4) in a symmetrical mode, the pre-fixing assembly (4) is composed of a connecting base plate (12) and a polyimide adhesive tape layer (13), and the polyimide adhesive tape layer (13) is fixedly installed at the lower end of the connecting base plate (12).

2. An improved electronic transformer as claimed in claim 1, wherein: The electronic transformer body (1) is fixedly provided with a transformer pin (5).

3. An improved electronic transformer as claimed in claim 2, wherein: The U-shaped base plate (6) on the connecting heat dissipation assembly (2) is fixedly provided on the electronic transformer body (1), a plurality of heat dissipation through holes (7) are formed in the U-shaped base plate (6), and the heat dissipation through holes (7) penetrate the U-shaped base plate (6) in the inside and outside.

4. An improved electronic transformer as claimed in claim 3, wherein: The U-shaped heat dissipation fin (8) on the connecting heat dissipation assembly (2) is provided in plurality and uniformly distributed on the outer wall of the U-shaped base plate (6), the outer ends of the two U-shaped heat dissipation fins (8) at the outermost sides are fixedly provided with four mounting base plates (9), and first through holes (10) are formed in the mounting base plates (9).

5. An improved electronic transformer as claimed in claim 4, wherein: Second through holes (11) are formed in the heat dissipation fan (3) in a symmetrical mode, the heat dissipation fan (3) is located at the upper end of the U-shaped heat dissipation fin (8) and the mounting base plate (9), and the heat dissipation fan (3) is fixedly connected with the mounting base plate (9) through bolts.

6. An improved electronic transformer as claimed in claim 5, characterized in that: The connecting base plate (12) on the pre-fixing assembly (4) is fixedly installed at the lower end of the U-shaped base plate (6), and the lower end of the polyimide adhesive tape layer (13) is flush with the lower end of the electronic transformer body (1).

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