High-frequency transformer structure

Abstract

The utility model discloses a high-frequency transformer structure, which relates to the technical field of high-frequency transformers, and comprises a main body, the main body comprises a base, a plurality of wire slots and pins are arranged on two sides of the base, a heat dissipation table is arranged in the middle of the upper surface of the base, and the heat dissipation table is of an upward convex structure. A magnetic core winding is installed above the heat dissipation table, a U-shaped frame is arranged above the magnetic core winding, protection assemblies are installed at the front end and the rear end of the U-shaped frame, a heat dissipation groove is formed in the lower portion of the heat dissipation table, a plurality of heat dissipation fins are installed in the heat dissipation groove, and an inclined part is arranged on the side wall of the heat dissipation table. A second heat dissipation channel is formed in the outer wall of the inclined part, and the second heat dissipation channel communicates with the heat dissipation groove. The high-frequency transformer solves the problems that when an existing high-frequency transformer is used, heat dissipation is conducted through cooling fins on the surface, the heat dissipation performance of the high-frequency transformer is remarkably reduced after an insulating tape is wound on the high-frequency transformer subsequently, and the practicability of the high-frequency transformer is affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to high frequency transformer technical field, concretely is a kind of high frequency transformer structure. BACKGROUND

[0002] High frequency transformer is the power transformer of work frequency more than intermediate frequency (10kHz), mainly used in high frequency switching power supply as high frequency switching power supply transformer, also used in high frequency inverter power supply and high frequency inverter welding machine as high frequency inverter power supply transformer;

[0003] For example, the announcement number: CN, named "a high frequency transformer heat dissipation structure", including heat dissipation shell, fin, magnetic core assembly and heat-conducting material composition, the surface of heat dissipation shell is provided with a plurality of fins, the inside of heat dissipation shell is provided with the cavity containing magnetic core assembly, the magnetic core assembly is located in the cavity inside heat dissipation shell, the surface of magnetic core assembly is covered with insulating layer, the gap between magnetic core assembly and the cavity inside heat dissipation shell is filled with heat-conducting material.

[0004] The above-mentioned existing high frequency transformer is cooled by the fins on the surface when in use, and the heat dissipation property of the high frequency transformer will be significantly reduced after winding the insulating tape, which affects the practicability. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of high frequency transformer structure to solve the problem that the heat dissipation property of the high frequency transformer will be significantly reduced after winding the insulating tape, which affects the practicability.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of high frequency transformer structure, comprising: main body, the main body includes base, the both sides of the base are provided with a plurality of line grooves and needle feet, the middle position of the upper surface of the base is provided with heat dissipation platform, and the heat dissipation platform is upper convex structure, the magnetic core winding is installed above the heat dissipation platform, the U-shaped frame is provided above the magnetic core winding, the front and rear ends of the U-shaped frame are both installed with protection assembly, the heat dissipation groove is opened below the heat dissipation platform, and a plurality of fins are installed in the heat dissipation groove.

[0007] Preferably, an inclined portion is provided on the side wall of the heat dissipation platform, a second heat dissipation channel is opened on the outer wall of the inclined portion, and the second heat dissipation channel is communicated with the heat dissipation groove.

[0008] Preferably, a first heat dissipation channel is opened on the outer wall of the both sides of the base, and the first heat dissipation channel is communicated with the heat dissipation groove.

[0009] Preferably, the outer wall of the U-shaped frame is provided with a plurality of insertion holes.

[0010] Preferably, the protection assembly comprises an insulating protection plate, the outer wall of the insulating protection plate is provided with an insertion block, and the insulating protection plate is connected with the insertion hole through the insertion block.

[0011] Preferably, the magnetic core winding comprises an upper top portion and a lower bottom portion, the upper top portion is located directly below the U-shaped frame, the lower bottom portion is located directly above the heat dissipation platform, and the insulating protection plate is located between the upper top portion and the lower bottom portion.

[0012] Preferably, a wire channel is arranged between the insulating protection plate and the heat dissipation platform, and the wire channel is used for passing the wire body of the magnetic core winding.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] (1) In the utility model, the magnetic core winding is installed at the heat dissipation platform, and is cooled through the plurality of heat dissipation fins below the heat dissipation platform. Since the heat dissipation fins are located at the bottom, even if the magnetic core winding is wound with the insulating tape at the U-shaped frame, the normal heat dissipation of the heat dissipation fins will not be affected. The heat dissipation grooves are further arranged at the bottom, and the upper convex structure of the heat dissipation platform can increase the space of the heat dissipation grooves at the bottom. On the one hand, the heat dissipation fins can be conveniently accommodated, and on the other hand, the bottom of the main body is reserved for heat dissipation after assembly, so that the heat dissipation fins can be conveniently cooled. The problem that the heat dissipation of the high-frequency transformer is significantly reduced after the high-frequency transformer is wound with the insulating tape, and the practicability is affected, is solved.

[0015] (2) In the utility model, the four sides of the heat dissipation platform are provided with inclined portions, and the second heat dissipation channels are arranged at the inclined portions. The gas can enter the heat dissipation grooves at the bottom through the second heat dissipation channels, so that the gas in different directions can take away the heat in the heat dissipation grooves, and the heat dissipation efficiency and effect are improved. In addition, the first heat dissipation channels are symmetrically arranged at the base, and the gas can also enter the heat dissipation grooves through the first heat dissipation channels to be cooled, so that the heat dissipation efficiency and effect are further improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is a whole internal structure schematic view of the utility model;

[0018] Figure 3 It is a main body bottom view of the utility model;

[0019] Figure 4 It is a protection assembly structure schematic view of the utility model;

[0020] In the diagram: 1. Main body; 101. Base; 102. U-shaped frame; 103. Socket; 104. Wire channel; 105. Pin; 106. First heat dissipation channel; 2. Heat dissipation platform; 201. Inclined part; 202. Second heat dissipation channel; 203. Heat dissipation groove; 3. Protective components; 301. Insulating protective plate; 302. Insert block; 4. Magnetic core winding; 401. Top; 402. Bottom; 5. Heat sink; 6. Wire channel. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figures 1-4 An embodiment of this utility model provides a high-frequency transformer structure, comprising: a main body 1, the main body 1 including a base 101, the base 101 having several wire grooves 104 and pins 105 on both sides, a heat sink 2 being provided at the middle position of the upper surface of the base 101, the heat sink 2 having an upward convex structure, a magnetic core winding 4 being installed above the heat sink 2, a U-shaped frame 102 being provided above the magnetic core winding 4, protective components 3 being installed at both the front and rear ends of the U-shaped frame 102, a heat sink 203 being provided below the heat sink 2, and several heat sinks 5 being installed inside the heat sink 203;

[0023] The magnetic core winding 4 is installed on the heat sink 2, and heat dissipation is achieved through several heat sinks 5 below the heat sink 2. Since the heat sink 5 is located at the bottom, even if the magnetic core winding 4 and the U-shaped frame 102 are wrapped with insulating tape, it will not affect the normal heat dissipation of the heat sink 5. A heat dissipation groove 203 is also provided at the bottom. Combined with the upward convex structure of the heat sink 2, the space of the heat dissipation groove 203 at the bottom can be increased. On the one hand, it can easily accommodate the heat sink 5. On the other hand, after the main body 1 is assembled, a heat dissipation space is reserved at the bottom to facilitate heat dissipation at the heat sink 5.

[0024] Specifically, the heat sink 2 has an inclined part 201 on its side wall, and a second heat dissipation channel 202 is opened on the outer wall of the inclined part 201. The second heat dissipation channel 202 is connected to the heat dissipation groove 203. A first heat dissipation channel 106 is opened on the outer walls of both sides of the base 101, and the first heat dissipation channel 106 is connected to the heat dissipation groove 203.

[0025] The heat dissipation platform 2 has inclined sections 201 on all four sides, and a second heat dissipation channel 202 is provided at the inclined section 201. Through the second heat dissipation channel 202, gas can enter the heat dissipation groove 203 at the bottom, so that the gas in different directions can easily carry away the heat in the heat dissipation groove 203, thereby improving the heat dissipation efficiency and effect. In addition, the base 101 has symmetrical first heat dissipation channels 106, and the gas can also enter the heat dissipation groove 203 through the first heat dissipation channel 106 for heat dissipation, further improving the heat dissipation efficiency and effect.

[0026] Furthermore, the outer wall of the U-shaped frame 102 is provided with a number of insertion holes 103. The protective component 3 includes an insulating protective plate 301. Insertion blocks 302 are installed on the outer wall of the insulating protective plate 301, and the insulating protective plate 301 is connected to the insertion holes 103 through the insertion blocks 302. The magnetic core winding 4 includes an upper top 401 and a lower bottom 402. The upper top 401 is located directly below the U-shaped frame 102, and the lower bottom 402 is located directly above the heat sink 2. The insulating protective plate 301 is located between the upper top 401 and the lower bottom 402. A wire channel 6 is provided between the insulating protective plate 301 and the heat sink 2 for the magnetic core winding 4 wires to pass through.

[0027] The insulating protective plate 301 is used to protect the magnetic core winding 4, preventing users from directly contacting the inside and improving safety. The insulating protective plate 301 is a detachable structure, and is connected to the insertion hole 103 by the insertion block 302. After its assembly, the wire channel 6 at its bottom can facilitate the passage of the wire, allowing the wire to enter the wire groove 104. The insulating protective plate 301 is made of insulating materials such as resin, silicone rubber, and glass fiber.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-frequency transformer structure, comprising a main body (1), wherein the main body (1) includes a base (101), and both sides of the base (101) are provided with a plurality of wire grooves (104) and pins (105), characterized in that: A heat sink (2) is provided at the middle position of the upper surface of the base (101), and the heat sink (2) is a convex structure. A magnetic core winding (4) is installed above the heat sink (2), and a U-shaped frame (102) is provided above the magnetic core winding (4). Protective components (3) are installed at both the front and rear ends of the U-shaped frame (102). A heat sink groove (203) is provided below the heat sink (2), and several heat sink fins (5) are installed inside the heat sink groove (203).

2. The high-frequency transformer structure according to claim 1, characterized in that: An inclined portion (201) is provided on the side wall of the heat dissipation platform (2), and a second heat dissipation channel (202) is provided on the outer wall of the inclined portion (201), and the second heat dissipation channel (202) is connected to the heat dissipation groove (203).

3. The high-frequency transformer structure according to claim 1, characterized in that: The base (101) has a first heat dissipation channel (106) on both sides of the outer wall, and the first heat dissipation channel (106) is connected to the heat dissipation groove (203).

4. The high-frequency transformer structure according to claim 1, characterized in that: The outer wall of the U-shaped frame (102) is provided with several insertion holes (103).

5. A high-frequency transformer structure according to claim 4, characterized in that: The protective component (3) includes an insulating protective plate (301), on the outer wall of the insulating protective plate (301) is a plug (302), and the insulating protective plate (301) is connected to the socket (103) through the plug (302).

6. A high-frequency transformer structure according to claim 5, characterized in that: The magnetic core winding (4) includes an upper top (401) and a lower bottom (402). The upper top (401) is located directly below the U-shaped frame (102), and the lower bottom (402) is located directly above the heat sink (2). The insulating protective plate (301) is located between the upper top (401) and the lower bottom (402).

7. A high-frequency transformer structure according to claim 6, characterized in that: A channel (6) is provided between the insulating protective plate (301) and the heat sink (2) for the magnetic core winding (4) wire to pass through.

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