Anti-siphon wide terminal

Abstract

The utility model relates to the technical field of SMT (Surface Mount Technology), in particular to an anti-siphon wide terminal, which comprises a terminal main body, a welding part arranged at the bottom of the terminal main body, and a contact surface part arranged on the terminal main body and positioned above the welding part, and a blocking through hole is arranged between the welding part and the contact surface part; according to the soldering flux blocking device, soldering flux which climbs upwards can be blocked, it can be guaranteed that the soldering flux cannot climb upwards to the contact face part in the manufacturing process, the situation that products are poor due to the fact that the soldering flux climbs upwards to the contact face part can be avoided, and the yield can be greatly improved.

Description

Technical Field:

[0001] The utility model relates to the technical field of SMT chip technology, in particular to an anti-siphon wide terminal. Background Art:

[0002] SMT (Surface Mount Technology) is one of the most commonly used technologies and processes in the current electronic assembly industry. Its characteristics are: high assembly density, small volume and light weight of electronic products. The volume and weight of chip components are only about 1 / 10 of those of traditional inserted components. Generally, after adopting SMT, the volume of electronic products is reduced by 40% - 60%, and the weight is reduced by 60% - 80%.

[0003] As Figure 1 shown, an existing wide terminal includes a terminal body, a welding part arranged at the bottom of the terminal body, and a contact part arranged on the terminal body and above the welding part. Since the soldering flux has benefits such as removing oxides, reducing the surface tension of the welded material, protecting the welded base material, making the solder joints beautiful, and assisting heat conduction when welding the terminal, the soldering flux is often used when welding the welding part. The soldering flux will have a siphon phenomenon during use, that is, the soldering flux will climb upward along the welding part, and the soldering flux climbing upward to the contact part will cause poor contact. There is an urgent need for an anti-siphon wide terminal that can ensure the yield rate. Summary of the Utility Model:

[0004] The purpose of the utility model is to provide an anti-siphon wide terminal aiming at the deficiencies of the existing technology, which can block the upward climbing soldering flux, ensure that the soldering flux cannot climb upward to the contact part during the manufacturing process, avoid the product defect caused by the soldering flux climbing upward to the contact part, and greatly improve the yield rate.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: an anti-siphon wide terminal, including a terminal body, a welding part arranged at the bottom of the terminal body, and a contact part arranged on the terminal body and above the welding part, wherein a blocking through hole is arranged between the welding part and the contact part.

[0006] A further improvement to the above solution is that the width of the blocking through hole is greater than or equal to the width of the welding part.

[0007] A further improvement to the above solution is that the blocking through hole includes a first hole part above the welding part and a second hole part above the left side of the first hole part. The right side of the first hole part is above the right side of the welding part, and the left side of the second hole part is above the left side of the welding part.

[0008] A further improvement to the above solution is that the first hole part is communicated with the second hole part.

[0009] A further improvement to the above solution is that the first hole portion and the second hole portion are rectangular holes respectively.

[0010] A further improvement to the above solution is that the height of the first hole portion is greater than or equal to 2.5 mm.

[0011] A further improvement to the above solution is that the height of the second hole portion is greater than or equal to 2 mm.

[0012] A further improvement to the above solution is that the horizontal distance between the right side of the first hole portion and the right side of the welding portion is greater than or equal to 1.5 mm.

[0013] A further improvement to the above solution is that the horizontal distance between the left side of the second hole portion and the left side of the welding portion is greater than or equal to 3 mm.

[0014] The beneficial effects of the present utility model are as follows: A siphon-proof wide terminal provided by the present utility model includes a terminal body, a welding portion provided at the bottom of the terminal body, and a contact surface portion provided on the terminal body and above the welding portion. A blocking through hole is provided between the welding portion and the contact surface portion.

[0015] A blocking through hole is provided between the welding portion and the contact surface portion of the present utility model. The soldering flux on the welding portion needs to pass through the blocking through hole first when climbing upward to the contact surface portion. The upward climbing soldering flux can be blocked by the blocking through hole, which can ensure that the soldering flux cannot climb upward to the contact surface portion during the manufacturing process, can avoid the situation of product defects caused by the soldering flux climbing upward to the contact surface portion, and can greatly improve the product qualification rate. Description of the drawings:

[0016] Figure 1 It is a schematic structural diagram of an existing wide terminal.

[0017] Figure 2 It is a schematic structural diagram of the present utility model.

[0018] Description of the reference numerals: Terminal body 1, welding portion 2, contact surface portion 3, blocking through hole 4, first hole portion 41, second hole portion 42. Detailed implementation manners:

[0019] The following further describes the present utility model with reference to the drawings, as Figure 2As shown in the figure, the utility model includes a terminal body 1, a welding part 2 arranged at the bottom of the terminal body 1, and a contact surface part 3 arranged on the terminal body 1 and above the welding part 2. A blocking through hole 4 is arranged between the welding part 2 and the contact surface part 3. There is a blocking through hole 4 between the welding part 2 and the contact surface part 3 of the utility model. The soldering flux on the welding part 2 needs to pass through the blocking through hole 4 first when climbing upward to the contact surface part 3. The upward climbing soldering flux can be blocked through the blocking through hole 4, which can ensure that the soldering flux cannot climb upward to the contact surface part 3 during the manufacturing process, can avoid the situation of product defects caused by the soldering flux climbing upward to the contact surface part 3, and can greatly improve the yield rate.

[0020] The width of the blocking through hole 4 is greater than or equal to the width of the welding part 2. The blocking through hole 4 can effectively block the upward climbing of the soldering flux, and can better ensure that the soldering flux cannot climb upward to the contact surface part 3 during the manufacturing process.

[0021] The blocking through hole 4 includes a first hole part 41 above the welding part 2 and a second hole part 42 above the left side of the first hole part 41. The right side of the first hole part 41 is above the upper right side of the right side of the welding part 2, and the left side of the second hole part 42 is above the upper left side of the left side of the welding part 2. The soldering flux on the right side of the welding part 2 can be effectively blocked through the first hole part 41, and the soldering flux on the left side of the welding part 2 can be effectively blocked through the second hole part 42.

[0022] In this embodiment, the first hole part 41 and the second hole part 42 are connected to each other and are integrally in a Z-shaped structure.

[0023] The first hole part 41 and the second hole part 42 are respectively rectangular holes. The height of the first hole part 41 is preferably greater than or equal to 2.5 mm, the height of the second hole part 42 is preferably greater than or equal to 2 mm, the horizontal distance between the right side of the first hole part 41 and the right side of the welding part 2 is preferably greater than or equal to 1.5 mm, and the horizontal distance between the left side of the second hole part 42 and the left side of the welding part 2 is preferably greater than or equal to 3 mm. In this embodiment, the height of the first hole part 41 is 2.74 mm, the height of the second hole part 42 is 2.12 mm, the horizontal distance between the right side of the first hole part 41 and the right side of the welding part 2 is 1.89 mm, and the horizontal distance between the left side of the second hole part 42 and the left side of the welding part 2 is 3.73 mm, which can well ensure that the soldering flux cannot climb upward to the contact surface part 3 during the manufacturing process.

[0024] Working principle:

[0025] The solder flux on the welding part 2 needs to pass through the blocking through-hole 4 first when climbing upward to the contact surface part 3. The upward climbing solder flux can be blocked through the blocking through-hole 4, which can ensure that the solder flux cannot climb upward to the contact surface part 3 during the manufacturing process, can avoid the situation of product defects caused by the solder flux climbing upward to the contact surface part 3, and can greatly improve the yield rate.

[0026] Certainly, the above description is only the preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A siphon-proof wide terminal, comprising a terminal body (1), a welding part (2) arranged at the bottom of the terminal body (1), and a contact surface part (3) arranged on the terminal body (1) and above the welding part (2), characterized in that: A blocking through-hole (4) is provided between the welding part (2) and the contact surface part (3).

2. The anti-siphon wide terminal according to claim 1, characterized in that: The width of the blocking through-hole (4) is greater than or equal to the width of the welding part (2).

3. The anti-siphon wide terminal according to claim 1, characterized in that: The blocking through-hole (4) includes a first hole part (41) located above the welding part (2) and a second hole part (42) located above the left side of the first hole part (41). The right side of the first hole part (41) is located above the upper right side of the right side of the welding part (2), and the left side of the second hole part (42) is located above the upper left side of the left side of the welding part (2).

4. The anti-siphon wide terminal according to claim 3, characterized in that: The first hole part (41) communicates with the second hole part (42).

5. The anti-siphon wide terminal according to claim 3, wherein: The first hole part (41) and the second hole part (42) are rectangular holes respectively.

6. The anti-siphon wide terminal according to claim 5, characterized in that: The height of the first hole part (41) is greater than or equal to 2.5 mm.

7. The anti-siphon wide terminal according to claim 5, characterized in that: The height of the second hole part (42) is greater than or equal to 2 mm.

8. The anti-siphon wide terminal according to claim 3, characterized in that: The horizontal distance between the right side of the first hole part (41) and the right side of the welding part (2) is greater than or equal to 1.5 mm.

9. The anti-siphon wide terminal according to claim 3, characterized in that: The horizontal distance between the left side of the second hole part (42) and the left side of the welding part (2) is greater than or equal to 3 mm.

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