A soldering tip

Abstract

The utility model relates to electronic component welding technical field discloses a soldering iron head, including welding contact piece, the end surface of welding contact piece is recessed to form a plurality of solder groove, a plurality of solder groove is arranged at interval, forms the solder resist part between two adjacent solder grooves, the surface of welding contact piece is provided with solder resist shell layer, the position of solder resist shell layer corresponds to the position of solder groove and is equipped with the position avoiding through slot, the solder resist part is located the inside of solder resist shell layer. The utility model plays the following technical effect: through setting up solder groove at the end surface of welding contact piece, can maintain the soldering required soldering tin amount, abbreviates halfway tin step, effectively improves the welding efficiency, and also can shorten the soldering heating time, avoids the damage of electronic component. In addition, through setting up solder resist shell layer, can prevent the phenomenon of connecting tin, can prevent the phenomenon of tin climbing, effectively improves the welding quality.

Description

Technical Field

[0001] This utility model belongs to the field of electronic component soldering technology, specifically relating to a soldering iron tip. Background Technology

[0002] Currently, the most common soldering method on the market is electric soldering. The soldering tip is a key component of electric soldering, used to solder electronic components, circuit boards, and metal wires. When soldering multi-pin sensors to wires, traditional electric soldering methods require soldering the wires one by one, resulting in extremely low soldering efficiency and a high risk of solder bridging.

[0003] In existing technologies, solder joint bridging is mitigated by incorporating grooves in the soldering iron tip, and flow channels are also added to guide the solder slurry, preventing solder creep. However, because the contact between the soldering iron tip and the solder joint is too tight, it cannot provide a temporary storage space for the solder slurry. Continuous soldering is required during the soldering process, which is cumbersome and prolongs the heating time of the solder joint, leading to sustained high temperatures and potentially damaging components. Utility Model Content

[0004] To address the shortcomings of the prior art, this invention provides a soldering iron tip that, by providing solder grooves on the end face of the soldering contact, maintains the required amount of solder for soldering, eliminates the need for adding solder mid-process, effectively improves soldering efficiency, and shortens soldering heating time, thus avoiding damage to electronic components. Furthermore, by providing a solder resist shell, it prevents both solder bridging and solder creep, effectively improving soldering quality.

[0005] The technical effects to be achieved by this utility model are realized through the following technical aspects: This utility model provides a soldering iron tip, including a soldering contact. The end face of the soldering contact is recessed inward to form a plurality of solder grooves. The plurality of solder grooves are arranged at equal intervals. A solder resist portion is formed between two adjacent solder grooves. A solder resist shell layer is provided on the surface of the soldering contact. The solder resist shell layer has a clearance groove corresponding to the position of the solder groove. The solder resist portion is located on the inner side of the solder resist shell layer.

[0006] As a further description of the technical solution of this utility model, the weld groove is U-shaped, and the shape of the clearance groove matches the shape of the weld groove.

[0007] As a further description of the technical solution of this utility model, the welding contact is a copper welding contact, and the solder resist shell is a ceramic solder resist shell.

[0008] As a further description of the technical solution of this utility model, the inner wall of the welding tank is provided with an anti-oxidation layer.

[0009] As a further description of the technical solution of this utility model, the antioxidant layer is a metal plating layer.

[0010] As a further description of the technical solution of this utility model, the sidewall of the welding contact is formed with a plurality of protrusions, and the sidewall of the solder resist shell is formed with a plurality of limiting holes. The number of protrusions matches the number of limiting holes, and the protrusions are embedded in the limiting holes.

[0011] As a further description of the technical solution of this utility model, the protruding structure is cylindrical, the limiting hole is circular, and the size of the protruding structure matches the size of the limiting hole.

[0012] As a further description of the technical solution of this utility model, the welding contact includes a first end face and a second end face that are positioned opposite each other. The weld groove and the weld barrier are both located on the first end face. The width of the first end face is smaller than the width of the second end face. A first guide slope and a second guide slope are respectively formed on opposite sides between the first end face and the second end face. The first guide slope and the second guide slope are mirror symmetrical.

[0013] As a further description of the technical solution of this utility model, the soldering iron tip also includes a connecting handle, the connecting handle including a first end and a second end that are positioned opposite each other, the first end being connected to the second end face, and the second end being used to connect to an external power supply device.

[0014] As a further description of the technical solution of this utility model, the connecting handle is a copper connecting handle, and the connecting handle is cylindrical in shape.

[0015] In summary, this utility model has at least the following advantages: The soldering iron tip provided by this utility model has multiple solder grooves on the end face of the soldering contact. These grooves correspond to the soldering points for welding. During the welding process, by feeding solder wire into the grooves, the molten solder forms a molten pool within the grooves, thus continuously maintaining the required amount of solder until welding is complete. No additional soldering is required during the process, effectively improving welding efficiency. Furthermore, by eliminating the intermediate soldering step, the heating time of the soldering points is shortened, thereby reducing damage to the soldered electronic components caused by high temperatures. By providing a solder resist layer on the surface of the soldering contact, heat transfer between adjacent solder grooves is effectively blocked, preventing solder bridging. Simultaneously, it prevents the molten solder from spreading upwards along the surface of the soldering contact, preventing solder creep. Therefore, the welding quality is effectively improved. Attached Figure Description

[0016] Figure 1 This is an exploded view of the soldering iron tip according to Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of the soldering iron tip, wires, and multi-pin sensor in Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of the overall structure of the soldering iron tip in Embodiment 2 of this utility model; Figure 4 This is an exploded view of the soldering iron tip in Embodiment 2 of this utility model; Figure 5 for Figure 4 Enlarged view of section A; Figure 6 This is a schematic diagram of the overall structure of the soldering iron tip in Embodiment 3 of this utility model.

[0017] Marked in the image: 1. Welded contact element; 11. Weld groove; 111. Anti-oxidation layer; 12. Weld resist part; 13. Weld resist shell layer; 131. Clearance groove; 132. Limiting hole; 14. Protruding structure; 15. First end face; 16. Second end face; 17. First guide slope; 18. Second guide slope; 2. Connecting handle; 21. First end; 22. Second end; 100. Wire; 200. Multi-pin sensor. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are some, but not all, of the embodiments of this utility model.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] Example 1 refer to Figures 1 to 2The soldering iron tip provided in this embodiment can be used for soldering electronic components. The soldering iron tip includes a soldering contact 1. The end face of the soldering contact 1 is recessed inward to form a plurality of solder grooves 11. The plurality of solder grooves 11 are arranged at equal intervals. A solder resist portion 12 is formed between two adjacent solder grooves 11. A solder resist shell layer 13 is provided on the surface of the soldering contact 1. The solder resist shell layer 13 has a clearance groove 131 corresponding to the position of the solder groove 11. The solder resist portion 12 is located inside the solder resist shell layer 13.

[0021] The solder mask shell 13 can be made of an insulating material with heat dissipation or heat insulation effects. In this embodiment, the solder mask shell 13 covers the surface of the solder mask portion 12 and the surrounding sidewalls of the welding contact 1 that are connected to the end face where the solder pool 11 is located. The solder mask shell 13 can effectively block heat transfer between two adjacent solder pools 11, thereby preventing solder bridging, and at the same time prevent the solder liquid from spreading upward along the surface of the welding contact 1, thereby preventing solder creep. Thus, the welding quality can be effectively improved.

[0022] By setting multiple solder grooves 11 on the end face of the welding contact 1, the solder grooves 11 can be heated and welded corresponding to the welding points. During the welding process, by feeding welding wire or the like into the solder grooves 11, the solder liquid formed by the heat melts can form a molten pool in the solder grooves 11, thereby continuously maintaining the amount of solder required for the welding process until the welding is completed. There is no need to add solder in the middle, which effectively improves the welding efficiency. At the same time, by shortening the middle soldering step, the heating time of the welding point can be shortened, thereby reducing the damage caused by high temperature to the welded electronic components.

[0023] In one embodiment, the solder pool 11 is U-shaped, and the shape of the clearance groove 131 matches the shape of the solder pool 11. The soldering iron tip of this embodiment is particularly suitable for soldering wires to multi-pin sensors. The U-shaped solder pool 11 can match the curvature of the surface of the wire 100 and the probe surface of the multi-pin sensor 200. During soldering, the wire 100 and the probe of the multi-pin sensor 200 are aligned one by one, and the U-shaped solder pool 11 is pressed onto the connection between the wire 100 and the probe of the multi-pin sensor 200. Then, solder is added to the solder pool 11. The molten solder forms a molten pool in the solder pool 11, thereby continuously maintaining the required amount of solder until the soldering is completed.

[0024] In this embodiment, the welding contact 1 is a copper welding contact, and the solder resist shell 13 is a ceramic solder resist shell, which is formed on the surface of the copper welding contact through a sintering process. Copper has excellent thermal conductivity, while ceramic has insulation properties and good heat dissipation. The solder groove 11 is formed on the end face of the copper welding contact and is not covered by the ceramic solder resist shell. Therefore, it has high heat transfer efficiency for welding heating, while the heat dissipation performance of the ceramic solder resist shell can play a good role in solder resisting, thereby effectively preventing solder bridging and solder creep.

[0025] Example 2 As a further optimization of Example 1, refer to Figures 3 to 5 The inner wall of the solder bath 11 is provided with an anti-oxidation layer 111, which can be used to prevent oxidation of the surface of the solder bath 11 under prolonged high temperature, thereby preventing soldering. In this embodiment, the anti-oxidation layer 111 is a metal plating layer, preferably gold. Gold is not easily oxidized at high temperature, which can effectively inhibit the oxidation reaction of the inner wall of the solder bath 11, thereby extending the service life of the soldering iron tip.

[0026] As a further optimization, the sidewall of the welding contact 1 has a plurality of protruding structures 14, and the sidewall of the solder resist shell 13 has a plurality of limiting holes 132. The limiting holes 132 can be through holes or blind holes. The number of protruding structures 14 matches the number of limiting holes 132, and the protruding structures 14 are embedded in the limiting holes 132. Through the interlocking connection between the protruding structures 14 and the limiting holes 132, the adhesion of the solder resist shell 13 to the surface of the welding contact 1 can be increased, preventing the solder resist shell 13 from falling off due to long-term use, thereby affecting the welding effect. In this embodiment, the protruding structures 14 are cylindrical, the limiting holes 132 are circular, and the size of the protruding structures 14 matches the size of the limiting holes 132.

[0027] As a further optimization, the soldering contact 1 includes a first end face 15 and a second end face 16 positioned opposite each other. The solder groove 11 and the solder resist portion 12 are both located on the first end face 15. The width of the first end face 15 is smaller than the width of the second end face 16. A first guide slope 17 and a second guide slope 18 are formed on opposite sides between the first end face 15 and the second end face 16, respectively, and the first guide slope 17 and the second guide slope 18 are mirror-symmetrical. Because the width of the first end face 15, where the solder groove 11 and the solder resist portion 12 are located, is smaller than the width of the second end face 16, the first guide slope 17 and the second guide slope 18 can guide the solder liquid downwards instead of spreading upwards, thereby further preventing solder creep during the soldering process.

[0028] It is understood that since the solder mask shell 13 is formed on the surface of the weld contact 1, the contour shape of the solder mask shell 13 matches the contour shape of the weld contact 1. It should be noted that in this embodiment, the solder mask shell 13 only covers the areas of the weld contact 1 other than the second end face 16 and the weld groove 11.

[0029] Example 3 As a further optimization of Example 2, refer to Figure 6The soldering iron tip also includes a connecting handle 2, which includes a first end 21 and a second end 22 positioned opposite each other. The first end 21 is connected to a second end face 16, and the second end 22 is used to connect to an external power supply device. The power supply device can supply power to the soldering iron tip, thereby causing the soldering iron tip to heat up. In some embodiments, a heat-insulating sleeve can be fitted over the outside of the connecting handle 2, which can be used for manual hand-held operation; or the connecting handle 2 can be directly mounted on a drive device, and the soldering iron tip can be moved by the drive device to achieve automated soldering.

[0030] In this embodiment, the connecting handle 2 is a copper connecting handle, and the connecting handle 2 is cylindrical in shape. The material of the connecting handle 2 is the same as that of the welding contact 1, both of which have excellent thermal conductivity. When the external power supply device is powered on, the connecting handle 2 can heat up quickly and transfer the heat to the welding contact 1 quickly, which is beneficial to improving the welding operation efficiency.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A soldering iron tip, characterized in that, The device includes a welding contact (1), the end face of which is recessed inward to form a plurality of welding grooves (11), the plurality of welding grooves (11) are arranged at equal intervals, a weld resist portion (12) is formed between two adjacent welding grooves (11), a weld resist shell layer (13) is provided on the surface of the welding contact (1), the weld resist shell layer (13) is provided with a clearance through groove (131) corresponding to the position of the welding groove (11), and the weld resist portion (12) is located inside the weld resist shell layer (13).

2. The soldering iron tip according to claim 1, characterized in that, The weld groove (11) is U-shaped, and the shape of the clearance groove (131) matches the shape of the weld groove (11).

3. The soldering iron tip according to claim 1, characterized in that, The welding contact (1) is a copper welding contact, and the solder resist shell (13) is a ceramic solder resist shell.

4. The soldering iron tip according to claim 3, characterized in that, The inner wall of the weld pool (11) is provided with an anti-oxidation layer (111).

5. The soldering iron tip according to claim 4, characterized in that, The antioxidant layer (111) is a metal plating layer.

6. The soldering iron tip according to claim 1, characterized in that, The sidewall of the welding contact (1) has a plurality of protrusions (14), and the sidewall of the solder resist shell (13) has a plurality of limiting holes (132). The number of protrusions (14) matches the number of limiting holes (132), and the protrusions (14) are embedded in the limiting holes (132).

7. The soldering iron tip according to claim 6, characterized in that, The protrusion structure (14) is cylindrical, the limiting hole (132) is circular, and the size of the protrusion structure (14) matches the size of the limiting hole (132).

8. The soldering iron tip according to claim 1, characterized in that, The welding contact (1) includes a first end face (15) and a second end face (16) that are opposite to each other. The weld groove (11) and the weld barrier part (12) are both located on the first end face (15). The width of the first end face (15) is smaller than the width of the second end face (16). A first guide slope (17) and a second guide slope (18) are formed on opposite sides between the first end face (15) and the second end face (16). The first guide slope (17) and the second guide slope (18) are mirror symmetrical.

9. The soldering iron tip according to claim 8, characterized in that, It also includes a connecting handle (2), which includes a first end (21) and a second end (22) positioned opposite each other. The first end (21) is connected to the second end face (16), and the second end (22) is used to connect to an external power supply device.

10. The soldering iron tip according to claim 9, characterized in that, The connecting handle (2) is a copper connecting handle, and the connecting handle (2) is cylindrical in shape.

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