A DC female connector with U-shaped terminals

Abstract

This utility model discloses a DC female connector with a U-shaped terminal block, including a housing, an insulating end cap, and a center pin. The insulating end cap is installed at one end of the housing, and one end of the center pin is installed at the center of the insulating end cap, while the other end extends into the interior of the housing. The end of the center pin facing the insulating end cap protrudes to form a welding part, and the exposed end of the insulating end cap protrudes to form an isolation part. This utility model has a simple structure. The welding part on the center pin is arranged in a "U" shape, allowing the connected wire to be inserted into the U-shaped cavity of the welding part for positioning before welding, ensuring the accuracy and strength of the weld. Furthermore, the welding part and the grounding wire are provided with an isolation part, greatly reducing the probability of contact between them and increasing safety.

Description

Technical Field

[0001] This utility model relates to the field of DC female connector technology, specifically to a DC female connector with U-shaped terminals. Background Technology

[0002] A DC female connector is a common DC power interface, typically used to connect power adapters or power supply equipment. Currently, most DC female connectors on the market have a protruding center pin forming a straight-line solder joint, lacking an isolation structure. If the grounding wire soldered to the DC female connector is a bare wire, it can easily cause continuity between the wire connected to the center pin and the grounding wire, creating a safety hazard. Furthermore, the straight-line solder joint is difficult to solder to wires and lacks positioning functionality. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a DC female connector with a U-shaped terminal block. The U-shaped welding part facilitates wiring, while the isolation part can separate the grounding wire from the welding part, thereby solving the problems mentioned in the background art.

[0004] This utility model is achieved through the following technical solution: a DC female connector with a U-shaped terminal block, comprising a housing, an insulating end cap, and a center pin. The insulating end cap is installed at one end of the housing, and one end of the center pin is installed at the center of the insulating end cap, while the other end extends into the interior of the housing. The end of the center pin protrudes toward the insulating end cap to form a welding part, and the exposed end of the insulating end cap protrudes to form an isolation part.

[0005] As a preferred technical solution, the isolation part is disposed on one side of the connecting part, and the insulating end cap is provided with a groove at one end inside the outer shell, which is directly opposite the isolation part. One end of the outer shell is recessed at the groove to form a connecting groove, and the connecting groove is inserted into the groove. The inner wall surface of the connecting groove is flush with the inner wall surface of the isolation part.

[0006] As a preferred technical solution, both the welding part and the isolation part are arranged in a "U" shape, and the welding part and the isolation part are arranged in parallel.

[0007] As a preferred technical solution, an inner mesh with an annular structure is installed at the end of the outer shell away from the insulating end cover, and the end of the center pin away from the insulating end cover is inserted into the inner cavity of the inner mesh.

[0008] As a preferred technical solution, the center pin is hollow inside, and a first opening is provided at the end of the center pin away from the insulating end cap, and a second opening is provided on the outer wall of the center pin near the first opening.

[0009] As a preferred technical solution, the outer casing is made of metal.

[0010] As a preferred technical solution, the welded part is formed by stamping with a central pin.

[0011] As a preferred technical solution, the axis of symmetry of the first opening coincides with the axis of the central needle.

[0012] The beneficial effects of this utility model are: the utility model has a simple structure, the welding part on the central needle is set in a "U" shape, the wire connected to it can be inserted into the U-shaped cavity of the welding part for positioning before welding, so as to ensure the accuracy and strength of welding. In addition, the welding part and the grounding wire are provided with an isolation part, which greatly reduces the probability of contact between the two and increases safety. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a bottom view of the present invention;

[0016] Figure 3 This is a side view of the present invention;

[0017] Figure 4 This is a schematic diagram of the structure of this utility model after removing the outer shell.

[0018] The components are: 1. Outer shell; 2. Insulating end cap; 3. Center pin; 4. Welding part; 5. Isolation part; 6. Connecting groove; 7. Inner mesh; 8. First opening; 9. Second opening; 10. Groove. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0021] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a DC female connector with a U-shaped terminal block according to this utility model includes a housing 1, an insulating end cover 2, and a center pin 3. The insulating end cover 2 is installed at one end of the housing 1, and one end of the center pin 3 is installed at the center of the insulating end cover 2, while the other end extends into the interior of the housing 1. The center pin 3 protrudes towards the insulating end cover 2 to form a welding part 4, and the exposed end of the insulating end cover 2 protrudes to form an isolation part 5.

[0023] In this embodiment, the isolation part 5 is disposed on one side of the connecting part, and the insulating end cap 2 is located inside the outer shell 1 with a groove 10 opposite the isolation part 5. The outer shell 1 is recessed at the groove 10 to form a connecting groove 6. The connecting groove 6 is inserted into the groove 10, and the inner wall surface of the connecting groove 6 is flush with the inner wall surface of the isolation part 5.

[0024] When connecting the grounding wire, the grounding wire can pass through the U-shaped cavity on one side of the isolation section until it extends into the connecting groove and is welded and fixed to the outer shell. The isolation section can separate the grounding wire from the wire connected to the center pin.

[0025] In this embodiment, both the welding part 4 and the isolation part 5 are arranged in a "U" shape, and the welding part 4 and the isolation part 5 are arranged in parallel.

[0026] During welding, the wire can be inserted into the U-shaped cavity on one side of the welding part. The U-shaped cavity can position the inserted wire before welding, ensuring the accuracy and strength of the welding. In addition, the welding part and the grounding wire are equipped with an isolation part, which greatly reduces the probability of contact between the two and increases safety.

[0027] In this embodiment, an inner mesh 7 with an annular structure is installed at the end of the outer shell 1 away from the insulating end cap 2, and the end of the center pin 3 away from the insulating end cap 2 is inserted into the inner cavity of the inner mesh 7.

[0028] In this embodiment, the center pin 3 is hollow inside. A first opening 8 is provided at the end of the center pin 3 furthest from the insulating end cap 2, and a second opening 9 is provided on the outer wall of the center pin 3 near the first opening 8. The center pin is made of 62 copper, which is not easily rusted and has good conductivity. Compared to hollow stretching pins on the market, it is thicker and of more stable quality. Furthermore, the center pin has a first and a second opening, allowing the electroplating solution flowing into the center pin from one end during electroplating to exit through the first and second openings at the other end, effectively preventing oxidation and blackening of the DC female connector and enhancing conductivity.

[0029] In this embodiment, the outer shell 1 is made of metal.

[0030] In this embodiment, the welding part 4 is stamped from the center pin 3. During production, one end of the center pin protrudes from the insulating end cap and is cut. The cutting depth is half that of the center pin. After cutting, the center pin on the cut side is squeezed inward, so that this part bends and fits with the other part until a U-shaped welding part is formed, which facilitates production and forming.

[0031] In this embodiment, the axis of symmetry of the first opening 8 coincides with the axis of the central needle 3, allowing the internal electroplating solution to drain smoothly.

[0032] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A DC female terminal having a U-shaped terminal, characterized by: It includes a housing (1), an insulating end cap (2) and a center pin (3). The insulating end cap (2) is installed at one end of the housing (1). One end of the center pin (3) is installed at the center of the insulating end cap (2) and the other end extends into the interior of the housing (1). The center pin (3) protrudes towards the end of the insulating end cap (2) to form a welding part (4). The exposed end of the insulating end cap (2) protrudes to form an isolation part (5).

2. The DC female header with U-shaped terminal according to claim 1, characterized in that: An isolation part (5) is provided on one side of the connecting part. An insulating end cap (2) is located inside the outer shell (1) with a groove (10) opposite the isolation part (5). One end of the outer shell (1) is recessed opposite the groove (10) to form a connecting groove (6). The connecting groove (6) is inserted into the groove (10). The inner wall surface of the connecting groove (6) is flush with the inner wall surface of the isolation part (5).

3. The DC female header with U-shaped terminal according to claim 1, characterized in that: Both the welding part (4) and the isolation part (5) are arranged in a "U" shape, and the welding part (4) and the isolation part (5) are arranged in parallel.

4. The DC female header with U-shaped terminal according to claim 1, characterized in that: An inner mesh (7) with a ring structure is installed at the end of the outer shell (1) away from the insulating end cap (2), and the end of the center pin (3) away from the insulating end cap (2) is inserted into the inner cavity of the inner mesh (7).

5. The DC female header with U-shaped terminal according to claim 1, characterized in that: The center needle (3) is hollow inside. The end of the center needle (3) away from the insulating end cap (2) is provided with a first opening (8), and the outer wall of the center needle (3) is provided with a second opening (9) near the first opening (8).

6. The DC female header with U-shaped terminal according to claim 1, characterized in that: The outer shell (1) is made of metal.

7. The DC female header with U-shaped terminal according to claim 1, characterized in that: The welded part (4) is formed by stamping the center pin (3).

8. The DC female header with U-shaped terminal according to claim 5, characterized in that: The axis of symmetry of the first opening (8) coincides with the axis of the central needle (3).

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