Electronic transformer framework convenient to weld

Abstract

The utility model discloses an electronic transformer framework convenient for welding, which comprises a framework body and a plurality of plug pins, each plug pin comprises two welding pins with the same structure, and each welding pin comprises a fixing part and a plug part; according to the electronic transformer framework convenient to weld, the plug-in pins are fixed to the bottom of the framework body in an integrated injection molding mode, a wire of a transformer coil is clamped between the two welding pins, soldering tin is welded on the wire after the wire is wound around the wire winding groove, the plug-in parts of the welding pins are inserted into the pre-holes in the circuit board, the soldering tin is melted, and therefore welding of the transformer coil is facilitated. The soldering tin enters the two insertion-connection unavailable latches and the dissolving tank, so that the soldering tin can be firmly welded at the welding pin; the electronic transformer framework is firm in welding, the welding strength between the coil wires and the plug pins and the welding strength between the plug pins and the circuit board can be effectively reduced, the phenomenon of insufficient soldering is effectively reduced, and the welding quality of the transformer framework is improved.

Description

Technical Field

[0001] This utility model relates to the field of electronic transformer technology, specifically to an electronic transformer frame that is easy to weld. Background Technology

[0002] An electronic transformer is an electronic device that converts alternating current (AC) from mains electricity into direct current (DC), which is then used by semiconductor switching devices, electronic components, and high-frequency transformer windings to output a high-frequency AC voltage. It is also a type of AC-DC-AC inverter circuit described in electronics theory. Simply put, it mainly consists of a high-frequency transformer core (iron core) and two or more coils. These coils do not change position and, through electromagnetic induction, convert AC power from one or more electrical circuits into AC voltage and current. At the output of the high-frequency transformer, different voltage levels of high-frequency AC or DC power are supplied to one or more electrical circuits.

[0003] The existing electronic transformer frame has plate-shaped or needle-shaped pins. By inserting the pins into the corresponding circuit board, the pins and the transformer are soldered onto the circuit board. Because the surface of such transformer frame pins is relatively smooth, the solder adhesion is not strong enough when the pins are soldered to the coil wires and to the circuit board, which easily leads to cold solder joints. This affects the quality of the electronic transformer frame soldered onto the circuit board and cannot meet the user's needs. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an electronic transformer frame that is easy to weld and fix the magnetic core.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An electronic transformer frame that is easy to weld includes a frame body and several connector pins. The connector pins are fixedly installed at the bottom of the frame body. Each connector pin includes two welding pins with the same structure. The welding pins are formed by stamping a thin metal plate. Each welding pin includes a fixing part and a connecting part. The fixing part is located at one end of the connecting part. The connecting part has a semi-conical structure. The fixing part is located at the end of the connecting part with the larger size. Several retaining teeth are evenly provided on both sides of the connecting part, and several welding grooves are evenly provided on both sides of the connecting part.

[0007] Furthermore, a winding groove is provided on the side wall of the fixing part near the insertion part.

[0008] Furthermore, a number of wire clips are provided at the bottom of the skeleton body, and each wire clip is adapted to each connector pin.

[0009] Furthermore, the fixing part is fixed to the skeleton body by injection molding.

[0010] Furthermore, the two solder pins of the connector are combined to form a conical structure.

[0011] Compared with the prior art, this utility model provides an electronic transformer frame that is easy to weld, and has the following beneficial effects:

[0012] This easy-to-solder electronic transformer frame is fixed to the bottom of the frame body by integral injection molding of the connector pins. The transformer coil wire is clamped between two solder pins and secured by the clamping teeth. After the wire is wound around the winding groove, solder is applied. The connector of the solder pin is inserted into the pre-hole on the circuit board. By melting the solder, the solder enters the clamping teeth and the melting groove between the two connectors, thus firmly fusing the solder at the solder pin. This electronic transformer frame has a strong solder joint, which can effectively reduce the welding strength between the coil wire and the connector pin, and between the connector pin and the circuit board, effectively reducing the occurrence of cold solder joints and improving the soldering quality of this transformer frame. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the present invention;

[0014] Figure 2 This is a structural diagram of the connector pins of this utility model.

[0015] In the figure: 1. Frame body, 2. Wire clamp, 3. Welding pin, 31. Fixing part, 32. Wire winding groove, 33. Connecting part, 34. Clamping tooth, 35. Welding groove. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1 to 2 The present invention provides the following technical solution:

[0018] An electronic transformer frame for easy soldering includes a frame body 1 and several connector pins. The connector pins are fixedly installed at the bottom of the frame body 1 and are used to connect to the conductors of the transformer coil and to the circuit board for electrical conduction. Each connector pin includes two identical soldering pins 3 stacked together to form a conical structure. The soldering pins 3 are formed by stamping thin metal sheets and include a fixing part 31 and a connecting part 33. The fixing part 31 is located at one end of the connecting part 33 and is integrally embedded during the injection molding of the frame body 1. The connecting part 33 is semi-conical. The structure consists of two connector pins, each with a connector portion 33 forming a conical structure that can be inserted into connector holes of various sizes. A fixing portion 31 is located at the larger end of the connector portion 33, resulting in a connector pin with a larger top and a smaller bottom. Several locking teeth 34 are evenly distributed on both sides of the connector portion 33. The locking teeth 34 of the two connector portions 33 work together to lock the wires in place. Several welding grooves 35 are evenly distributed on both sides of the connector portion 33. The welding grooves 35 work together with the locking grooves to allow molten solder to enter the connector pins, making the solder adhesion of the connector pins stronger and preventing the solder from falling off or becoming cold-soldered.

[0019] A winding groove 32 is provided on the side wall of the fixing part 31 near the connector part 33. The winding groove 32 is used to wind the wire and reduce the sliding of the wire at the connector pin.

[0020] The bottom of the skeleton body 1 is also provided with several wire clamps 2, each wire clamp 2 is adapted to each connector pin, and the wire clamps are used to clamp the positioning wires so that the wires can be better connected to the connector pins.

[0021] The specific implementation process is as follows:

[0022] When using this easy-to-weld electronic transformer frame, first wind the coil around the winding frame of the frame body 1, then attach the coil wire to the wire clamp 2. The wire clamp 2 initially positions the wire, then wind the wire into the winding groove 32 of the two welding pins 3, and clamp the wire end between the two welding pins 3. The wire is lowered and clamped by the clamping teeth 34, and solder is soldered at the wire and the plug pin.

[0023] Then, each connector pin is inserted into the pre-set connector hole on the circuit board. Since the connector pin has a conical structure, it can fit connector holes of various sizes. Then, solder is fused between the circuit board and the connector pin. After the solder melts, it enters the two solder pins 3 through the gap between the connector part 33 of the two solder pins 3 and the fusion groove 35. After the solder solidifies, it can be firmly attached between the solder pin 3 and the circuit board.

[0024] This easy-to-solder electronic transformer frame is fixed to the bottom of the frame body 1 by integral injection molding of the connector pins. The transformer coil wire is clamped between two welding pins 3, and the wire is locked in place by the action of the retaining teeth 34. After the wire is wound around the winding groove 32, solder is applied. The connector 33 of the welding pin 3 is inserted into the pre-hole on the circuit board. By melting the solder, the solder enters the retaining teeth 34 and the melting groove, so that the solder is firmly fused to the welding pin 3. This electronic transformer frame is firmly welded, which can effectively reduce the welding strength between the coil wire and the connector pin, and between the connector pin and the circuit board, effectively reduce the occurrence of cold solder joints, and improve the welding quality of this transformer frame.

[0025] The above description is merely an embodiment of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the applicability of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An electronic transformer frame that is easy to weld, comprising a frame body, characterized in that: It also includes several connector pins, which are fixedly installed at the bottom of the frame body. Each connector pin includes two welding pins with the same structure. The welding pins are formed by stamping thin metal plates. Each welding pin includes a fixing part and a connecting part. The fixing part is located at one end of the connecting part. The connecting part has a semi-conical structure. The fixing part is located at the end with the larger size of the connecting part. Several locking teeth are evenly opened on both sides of the connecting part, and several welding grooves are evenly opened on both sides of the connecting part.

2. The electronic transformer frame for easy welding according to claim 1, characterized in that: A winding groove is provided on the side wall of the fixing part near the insertion part.

3. The electronic transformer frame for easy welding according to claim 1, characterized in that: The bottom of the skeleton body is also provided with several wire clips, each wire clip being adapted to a different connector pin.

4. The electronic transformer frame for easy welding according to claim 1, characterized in that: The fixing part is fixed to the skeleton body by injection molding.

5. The electronic transformer frame for easy welding according to claim 1, characterized in that: The two solder pins of the connector are combined to form a conical structure.

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