A welding structure of a conductor and an electronic component

Abstract

The utility model discloses a welding structure of a wire and an electronic component, which comprises a wire, an electronic component and solder, wherein a pin of the electronic component and a metal core wire of the wire are fixed by soldering and are electrically connected; and a spring is also included, wherein the pin of the electronic component and the metal core wire of the wire are both inserted into an inner hole of the spring and are pre-positioned, which is convenient for soldering in the later stage, and the solder is filled in the inner hole of the spring and in the gap between two adjacent turns of the spring wire body, and the solder also wraps the pin of the electronic component and the metal core wire of the wire, so that the pin of the electronic component, the metal core wire of the wire and the spring are stably welded and fixed together, and the welding structure is extremely stable and firm, and since the spring surrounds the pin of the electronic component and the outer periphery of the metal core wire of the wire, after being fixed by solder, radial positioning / limiting is formed, so that the pin and the metal core wire will not separate from each other, that is, the phenomenon of tin stripping will not occur, thereby ensuring the quality of the welding structure.

Description

Technical field:

[0001] The utility model relates to the technical field of welding conductive structures, in particular to a welding structure of a wire and an electronic element. Background technology:

[0002] In the prior art, sometimes it is necessary to weld the pins of the resistor (or electronic component) to the metal core wire 104 of the wire 103 to meet the use requirements. Figure 1 As shown, it is a welding structure of the pin 102 of the resistor 101 (or electronic component) and the metal core wire 104 of the wire 103, wherein the outer sheath of the end of the wire 103 is stripped to expose the metal core wire 104, and the metal core wire 104 is horizontally overlapped and contacted with the pin 102 of the resistor, and is fixed by soldering 105, so that the resistor and the wire 103 are electrically connected. Such a structure has the following disadvantages: first, the size of the resistor is small, and its pin 102 is a straight metal rod, and the size of the pin 102 is smaller, and the size of the metal core wire 104 of the wire 103 is also smaller, so its welding is more troublesome, especially the pin 102 of the resistor and the metal core wire 104 of the wire 103 cannot be positioned, which is not conducive to the welding operation; secondly, the pin 102 of the resistor and the metal core wire 104 of the wire 103 are in direct contact, and the structural stability formed by soldering 105 is poor, and there is no structural limitation on the outside of the pin 102 and the metal core wire 104, which is prone to tin stripping.

[0003] In view of this, the inventor proposes the following technical solution. Utility model content:

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a welding structure for a wire and an electronic component.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: the welding structure of the wire and the electronic component includes a wire, an electronic component and solder, wherein the pin of the electronic component and the metal core wire of the wire are fixed by soldering and form electrical conduction; and also includes a spring, the pin of the electronic component and the metal core wire of the wire are both inserted into the inner hole of the spring and pre-positioned, and the solder is filled in the inner hole of the spring and the gap between two adjacent turns of the spring wire, and the solder also wraps the pin of the electronic component and the metal core wire of the wire.

[0006] Furthermore, in the above technical solution, the pins of the electronic component and / or the metal core wires of the wires are in contact with the spring to achieve electrical contact.

[0007] Furthermore, in the above technical solution, the inner hole of the spring is shaped larger at the top and smaller at the bottom, and its longitudinal section is trapezoidal.

[0008] Furthermore, in the above technical solution, the inner hole of the spring is a circular hole.

[0009] Furthermore, in the above technical solution, the inner hole of the spring is an elliptical hole.

[0010] Furthermore, in the above technical solution, the inner hole of the spring is a rectangular hole.

[0011] Furthermore, in the above technical solution, the metal core wire end of the conductor is bent 180 degrees to fit the conductor and then inserted into the inner hole of the spring.

[0012] Furthermore, in the above technical solution, the spring is formed by spirally winding a metal wire multiple times.

[0013] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art: the utility model is further provided with a spring. Before soldering by soldering, the pin of the electronic component and the metal core wire of the wire are firstly inserted into the inner hole of the spring and pre-positioned, which is convenient for soldering by soldering in the later stage, and the solder is filled in the inner hole of the spring and the gap between two adjacent turns of the spring wire body. The solder also wraps the pin of the electronic component and the metal core wire of the wire, so that the pin of the electronic component and the metal core wire of the wire and the spring are stably welded and fixed together to form a whole. The welding structure is extremely stable and firm, and because the spring surrounds the pin of the electronic component and the outer periphery of the metal core wire of the wire, after being fixed by soldering, radial positioning / limiting is formed, which plays the role of a wall barrier, so that the pin of the electronic component and the metal core wire of the wire will not separate from each other, that is, there will be no tin stripping phenomenon, thereby ensuring the quality of the welding structure. Description of the drawings:

[0014] Figure 1 It is an assembly structure diagram of a welding structure of a resistor and a wire in the prior art;

[0015] Figure 2 It is an assembly diagram of the wire, electronic components and spring in the utility model;

[0016] Figure 3 It is an assembly diagram of the wire, electronic components and spring in the utility model from another perspective;

[0017] Figure 4 It is a cross-sectional view of the utility model;

[0018] Figure 5 It is an exploded view of the wire, electronic components and spring in the utility model. Specific implementation method:

[0019] The utility model is further described below in conjunction with specific embodiments and drawings.

[0020] See Figure 2-5 As shown, a welding structure of a wire and an electronic component includes a wire 1, an electronic component 2 and solder 3, wherein the pin 21 of the electronic component 2 and the metal core wire 11 of the wire 1 are welded and fixed by solder 3 to form electrical conduction, and the above is a conventional welding structure.

[0021] In order to improve the convenience of welding and the stability and firmness of the welding structure formed after welding, the utility model also makes the following improvements: a spring 4 is further provided, and the spring 4 has a through inner hole 41. Before welding by solder 3, the pin 21 of the electronic component 2 and the metal core wire 11 of the wire 1 are firstly inserted into the inner hole 41 of the spring 4 and pre-positioned, which is convenient for later welding by solder 3, and the solder 3 is filled in the inner hole 41 of the spring 4 and the gap between two adjacent turns of the spring wire body, and the solder 3 also wraps the pin 21 of the electronic component 2. With the metal core wire 11 of the wire 1, the pin 21 of the electronic component 2, the metal core wire 11 of the wire 1 and the spring 4 are stably welded and fixed together to form a whole. The welding structure is extremely stable and firm. Since the spring 4 surrounds the pin 21 of the electronic component 2 and the outer periphery of the metal core wire 11 of the wire 1, after being fixed by soldering, radial positioning / limiting is formed, which plays the role of a wall barrier, so that the pin 21 of the electronic component 2 and the metal core wire 11 of the wire 1 will not separate from each other, that is, there will be no tin stripping phenomenon, thereby ensuring the quality of the welding structure.

[0022] The pin 21 of the electronic component 2 and / or the metal core wire 11 of the wire 1 are in electrical contact with the spring 4. That is, a stable connection is formed between the pin 21 of the electronic component 2, the metal core wire 11 of the wire 1, the spring 4, and the solder 3, and the structure formed after welding is more stable, and the electrical conductivity performance is more stable.

[0023] The inner hole 41 of the spring 4 includes at least the following:

[0024] The first type: the inner hole 41 of the spring 4 is a round hole, which is a conventional spring and is easier to produce.

[0025] The second type: the inner hole 41 of the spring 4 is an elliptical hole, which can better accommodate the pin 21 of the electronic component 2 and the metal core wire 11 of the wire 1, so that the interval between the pin 21 of the electronic component 2 and the metal core wire 11 of the wire 1 and the inner hole 41 becomes smaller, which can not only have a better pre-positioning effect on the pin 21 of the electronic component 2 and the metal core wire 11 of the wire 1, but also can make the amount of solder filling become less, which can reduce the soldering cost to a certain extent.

[0026] The third type: the inner hole 41 of the spring 4 is a rectangular hole, which can better accommodate the pin 21 of the electronic component 2 and the metal core wire 11 of the wire 1, so that the interval between the pin 21 of the electronic component 2 and the metal core wire 11 of the wire 1 and the inner hole 41 becomes smaller, which can not only have a better pre-positioning effect on the pin 21 of the electronic component 2 and the metal core wire 11 of the wire 1, but also can make the amount of solder filling become less, which can reduce the soldering cost to a certain extent.

[0027] In addition, the inner hole 41 of the spring 4 is larger at the top and smaller at the bottom, and its longitudinal section is trapezoidal, that is, the bottom of the inner hole 41 has a narrowing effect, which can clamp and limit the pins 21 of the electronic component 2 and the ends of the metal core wires 11 of the wire 1, and its pre-positioning effect is better.

[0028] The end of the metal core wire 11 of the conductor 1 is bent 180 degrees and fitted therewith and then passed through the inner hole 41 of the spring 4, so that the inner hole 41 of the spring 4 can be filled with the metal core wire 11 of the conductor 1, so that the interval between the pin 21 of the electronic component 2 and the inner hole 41 becomes smaller, which can not only achieve a better pre-positioning effect on the pin 21 of the electronic component 2 and the metal core wire 11 of the conductor 1, but also reduce the amount of solder filled therein, thereby reducing the soldering cost to a certain extent.

[0029] The spring 4 is formed by spirally winding a metal wire for multiple turns.

[0030] In summary, the utility model is further provided with a spring 4. Before welding by the solder 3, the pin 21 of the electronic component 2 and the metal core wire 11 of the wire 1 are firstly inserted into the inner hole 41 of the spring 4 and pre-positioned, which is convenient for later welding by the solder 3, and the solder 3 is filled in the inner hole 41 of the spring 4 and the gap between two adjacent turns of the spring wire body. The solder 3 also wraps the pin 21 of the electronic component 2 and the metal core wire 11 of the wire 1, so that the pin 21 of the electronic component 2, the metal core wire 11 of the wire 1 and the spring 4 are stably welded and fixed together to form a whole. The welding structure is extremely stable and firm. Since the spring 4 surrounds the pin 21 of the electronic component 2 and the metal core wire 11 of the wire 1, after being fixed by the solder, it forms a radial positioning / limiting function, which plays the role of a wall barrier, so that the pin 21 of the electronic component 2 and the metal core wire 11 of the wire 1 will not separate from each other, that is, there will be no tin stripping phenomenon, thereby ensuring the quality of the welding structure.

[0031] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made according to the structure, characteristics and principles described in the patent application scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. A welding structure of a wire and an electronic component, comprising a wire (1), an electronic component (2) and solder (3), wherein: The pin (21) of the electronic component (2) and the metal core wire (11) of the conductor (1) are fixed by soldering (3) to form electrical conduction, and the characteristics are: The invention also comprises a spring (4), wherein the pin (21) of the electronic component (2) and the metal core wire (11) of the wire (1) are both inserted into the inner hole (41) of the spring (4) and pre-positioned, and the solder (3) is filled in the inner hole (41) of the spring (4) and the gap between two adjacent turns of the spring wire, and the solder (3) also wraps the pin (21) of the electronic component (2) and the metal core wire (11) of the wire (1).

2. The welding structure of a wire and an electronic component according to claim 1, characterized in that: The pins (21) of the electronic component (2) and / or the metal core wire (11) of the wire (1) are in contact with the spring (4) to achieve electrical contact.

3. The welding structure of a wire and an electronic component according to claim 1, characterized in that: The inner hole (41) of the spring (4) is shaped larger at the top and smaller at the bottom, and its longitudinal section is trapezoidal.

4. The welding structure of a wire and an electronic component according to claim 1, characterized in that: The inner hole (41) of the spring (4) is a circular hole.

5. The welding structure of a wire and an electronic component according to claim 1, characterized in that: The inner hole (41) of the spring (4) is an elliptical hole.

6. The welding structure of a wire and an electronic component according to claim 1, characterized in that: The inner hole (41) of the spring (4) is a rectangular hole.

7. A welding structure of a wire and an electronic component according to any one of claims 1 to 6, characterized in that: The end of the metal core wire (11) of the conductor (1) is bent 180 degrees to fit together and then inserted into the inner hole (41) of the spring (4).

8. A welding structure of a wire and an electronic component according to any one of claims 1 to 6, characterized in that: The spring (4) is formed by spirally winding a metal wire multiple times.

Images