A small volume transformer with fast heat dissipation

Abstract

The utility model discloses a small volume transformer of quick heat dissipation, including primary coil, secondary coil, primary coil framework, secondary coil framework, magnetic core, circuit board and fan, its characterized in that: primary coil framework and secondary coil framework are hollow cylinder, and the inner wall is equipped with the limiting piece, and the secondary coil framework is set in the primary coil framework outside, the outer peripheral wall of secondary coil framework is equipped with the winding groove, and both sides are equipped with the fixed base, and the winding groove is equipped with the limit hole, and the fixed base is equipped with the pin, the primary coil spiral ring is surrounded on the outer peripheral wall of primary coil framework, and the outgoing wire of both ends is connected through welding with the pin, the secondary coil is wound in the winding groove, and the outgoing wire of both ends is connected through welding with the circuit board, the magnetic core passes through primary coil framework and is connected through the fastener, the fan sets up in the side of transformer, the utility model discloses quick heat dissipation, small, with high -power household electrical appliances.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, and in particular to a small-volume transformer with fast heat dissipation. Background Technology

[0002] In existing electronic device technology, as electronic devices develop towards miniaturization and high power, the contradiction between the heat dissipation performance, size, and power density of traditional transformers is becoming increasingly prominent. Traditional transformers have limited heat dissipation capacity, especially under high-power operation, where excessive temperature rise can easily affect efficiency and reliability. Currently, some transformers on the market use multi-layer winding structures, which, while increasing power density, are prone to localized overheating due to poor heat dissipation between coils, thus affecting service life. Therefore, there is an urgent need for a high-efficiency transformer structure with excellent heat dissipation performance, compact size, and suitability for high-power applications. Thus, it is necessary to design a new transformer structure that optimizes the coil frame layout, enhances heat dissipation capacity, and improves core utilization to solve the problems of slow heat dissipation, large size, and low power density in existing technologies. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a small-volume transformer with fast heat dissipation, which can accelerate heat dissipation through fan ventilation, is compact in size and suitable for high-power applications, so as to overcome the shortcomings of the prior art.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: A small-volume transformer with fast heat dissipation includes a primary coil, a secondary coil, a primary coil frame, a secondary coil frame, a magnetic core, a circuit board, and a fan. The primary and secondary coil frames are hollow cylindrical structures with limiting members on their inner walls. The secondary coil frame is fitted over the primary coil frame, and the limiting members create a gap between them and fix the primary coil frame. The outer peripheral wall of the secondary coil frame has a winding groove, and fixing seats are provided on both sides. The winding groove has limiting holes, and the fixing seats have pins. The primary coil is spirally wound around the outer peripheral wall of the primary coil frame, and the leads at both ends are connected to the pins by welding. The secondary coil is wound inside the winding groove, and the leads at both ends are connected to the circuit board by welding. The magnetic core consists of a U-shaped first magnetic core seat and a second magnetic core seat, passes through the primary coil frame, and is connected by fasteners. The fan is located on the side of the transformer.

[0005] The primary coil frame and the secondary coil frame are made of insulating material. The winding slots are evenly spaced on the outer peripheral wall of the secondary coil frame. Two adjacent turns of the secondary coil are separated by the slot wall and connected by a wire passage.

[0006] The primary coil and the secondary coil are made of wires with good conductivity, including but not limited to copper wire, aluminum wire and silver wire, and the outer periphery of the leads at both ends is provided with an insulating layer.

[0007] The primary coil frame is provided with a first baffle on both sides. The first baffle has a notch, so that the lead wires at both ends of the primary coil are welded to the pins through the notch.

[0008] The secondary coil frame is provided with a second baffle on both sides. The second baffle has a boss to isolate the pins and prevent the welding material from contaminating the secondary coil.

[0009] The magnetic core is equipped with a support member, which is used to stabilize the position of the transformer.

[0010] The above technical solution has the following beneficial effects: This invention optimizes the structural design of the primary coil frame and the secondary coil frame, enabling the transformer to have the advantages of fast heat dissipation, small size, high power density, and high reliability. Attached Figure Description

[0011] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0012] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0013] Figure 1 This is a side view of the present invention. Figure 2 This is an exploded view of the transformer of this utility model; In the diagram: secondary coil frame 1, secondary coil 1.1, winding groove 1.2, wire passage 1.3, second baffle 1.4, primary coil frame 2, primary coil 2.1, first baffle 2.2, notch 2.3, magnetic core 3, first magnetic core seat 3.1, second magnetic core seat 3.2, limiting member 4, fixing seat 5, boss 6, pin 7, support member 8. Detailed Implementation

[0014] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0015] See Figures 1-2 As shown, this utility model discloses a small-volume transformer with fast heat dissipation, including a primary coil 2.1, a secondary coil 1.1, a primary coil frame 2, a secondary coil frame 1, a magnetic core 3, a circuit board, and a fan. The primary coil frame 2 and the secondary coil frame 1 are hollow cylinders with a limiting member 4 on their inner walls. The secondary coil frame 1 is fitted over the primary coil frame 2, and the limiting member 4 creates a certain gap between them and fixes the primary coil frame 2. The outer peripheral wall of the secondary coil frame 1 is provided with a winding groove 1. 2. Fixed seats 5 are provided on both sides, and the winding groove 1.2 is provided with a wire passage 1.3. The fixed seat 5 is provided with pins 7. The primary coil 2.1 is spirally wound around the outer peripheral wall of the primary coil frame 2, and the leads at both ends are connected to the pins 7 by welding. The secondary coil 1.1 is wound in the winding groove 1.2, and the leads at both ends are connected to the circuit board by welding. The magnetic core 3 is composed of a U-shaped first magnetic core seat 3.1 and a second magnetic core seat 3.2, which passes through the primary coil frame 2 and is connected by fasteners. The fan is located on the side of the transformer.

[0016] The primary coil frame 2 and the secondary coil frame 1 are made of insulating material. The winding slots 1.2 are evenly distributed on the outer peripheral wall of the secondary coil frame 1. Two adjacent turns of the secondary coil 1.1 are separated by the slot wall of the winding slot 1.2 and connected by the wire passage 1.3.

[0017] The primary coil 2.1 and the secondary coil 1.1 are made of wires with good conductivity, including but not limited to copper wire, aluminum wire and silver wire, and the outer periphery of the leads at both ends is provided with an insulating layer.

[0018] The primary coil frame 2 has a first baffle 2.2 on both sides. The first baffle 2.2 has a recess 2.3 so that the lead wires at both ends of the primary coil 2.1 are welded to the pins 7 through the recess 2.3.

[0019] The secondary coil frame 1 is provided with a second baffle 1.4 on both sides. The second baffle 1.4 is provided with a boss 6, which isolates the pins 7 and prevents the welding material from contaminating the secondary coil 2.1.

[0020] The magnetic core 3 is provided with a support member 8, and the support member 7 is used to stabilize the position of the transformer.

[0021] The working principle of this utility model: The working process / principle of this utility model: During operation, an AC input signal is applied to the primary coil 2.1, causing it to generate an alternating magnetic field. Because the primary coil frame 2 and the secondary coil frame 1 adopt a nested structure, and the secondary coil 1.1 is uniformly wound in the winding slot 1.2, the magnetic field can be efficiently coupled to the secondary side, thereby inducing a corresponding output voltage on the secondary coil 1.1.

[0022] The magnetic core 3 consists of a U-shaped first core holder 3.1 and a second core holder 3.2, forming a closed magnetic circuit, which improves the permeability and reduces leakage flux loss. At the same time, the gap design between the primary coil frame 2 and the secondary coil frame 1 facilitates air circulation, and together with the side fan for air cooling, it effectively reduces the temperature rise of the transformer and ensures stable operation under high power conditions.

[0023] The lead wire of the primary coil 2.1 is soldered to the pin 7 through the notch 2.3 on the first baffle 2.2, while the lead wire of the secondary coil 1.1 is directly connected to the circuit board, realizing efficient power transmission. In addition, the support component 8 ensures the overall structure of the transformer is stable, avoiding the impact of vibration or external force on its working performance.

[0024] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A small-volume transformer with fast heat dissipation, comprising a primary coil, a secondary coil, a primary coil bobbin, a secondary coil bobbin, a magnetic core, a circuit board, and a fan, characterized in that: The primary and secondary coil frames are hollow cylindrical structures with limiting members on their inner walls. The secondary coil frame is fitted over the primary coil frame, and the limiting members create a gap between them and fix the primary coil frame. The outer peripheral wall of the secondary coil frame has a winding groove, and there are fixing seats on both sides. The winding groove has a wire passage, and the fixing seats have pins. The primary coil is spirally wound around the outer peripheral wall of the primary coil frame, and the leads at both ends are connected to the pins by welding. The secondary coil is wound inside the winding groove, and the leads at both ends are connected to the circuit board by welding. The magnetic core consists of a U-shaped first magnetic core seat and a second magnetic core seat, which passes through the primary coil frame and is connected by fasteners. The fan is located on the side of the transformer.

2. The small-volume transformer with fast heat dissipation according to claim 1, characterized in that: The primary coil frame and the secondary coil frame are made of insulating material. The winding slots are evenly spaced on the outer peripheral wall of the secondary coil frame. Two adjacent turns of the secondary coil are separated by the slot wall and connected by a wire passage.

3. The small-volume transformer with fast heat dissipation according to claim 1, characterized in that: The primary and secondary coils are made of wires, including but not limited to copper wire, aluminum wire, and silver wire, and the outer periphery of the leads at both ends is provided with insulating sleeves.

4. The small-volume transformer with fast heat dissipation according to claim 1, characterized in that: The primary coil frame is provided with a first baffle on both sides. The first baffle has a notch, so that the lead wires at both ends of the primary coil are welded to the pins through the notch.

5. A small-volume transformer with fast heat dissipation according to claim 1, characterized in that: The secondary coil frame is provided with a second baffle on both sides. The second baffle has a boss to isolate the pins and prevent the welding material from contaminating the secondary coil.

6. The small-volume transformer with fast heat dissipation according to claim 1, characterized in that: The magnetic core is equipped with a support member, which is used to stabilize the position of the transformer.

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