DC female joint
By setting the first and second openings on the center needle of the DC female head to discharge the electroplating potion, the problem of difficult discharge of electroplating potion in the prior art is solved, and copper material is used to reduce costs, and better results are achieved conductive effect and economical production.
Patent Information
- Application Number
- CN202420918326.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-04-29
AI Technical Summary
The electroplating water of the existing DC female head is difficult to discharge during the electroplating process, resulting in oxidation and blackening of the central needle, affecting the power-on effect. The solid needle is costly and the hollow stretch needle is costly.
A DC female head is designed with the center needle in a hollow structure, and first and second openings are provided at one end through which the electroplating water is discharged during the electroplating process to avoid oxidation and blackening, and at the same time, copper material is used to reduce costs.
It effectively avoids oxidation and blackening of DC female heads, enhances the conductive effect, and reduces production costs.
Smart Images
Figure CN222320568U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power connectors, in particular to a DC female connector. Background Art
[0002] DC (Direct current) female connector refers to a DC female connector, which is a low-voltage DC power connector widely used in computer peripherals and consumer electronics. The center pins of DC female connectors currently on the market are usually solid pins or hollow stretch pins. The cost of solid pins is high. When the hollow stretch pin is electroplated, the electroplating solution flows into the hollow stretch pin from the gap at one end, and the other end has no opening and cannot be easily discharged, which easily causes the hollow stretch pin to oxidize and turn black, resulting in poor power-on effect of the DC female connector. Utility Model Content
[0003] Based on this, it is necessary to provide a DC female connector which can make the electroplating solution flow out of the center pin easily during the electroplating process and has a low manufacturing cost.
[0004] A DC female connector, comprising:
[0005] shell;
[0006] An arc-shaped inner net is arranged in the outer shell;
[0007] An insulating column, wherein the insulating column is embedded in one end of the housing;
[0008] The center needle is a hollow structure, one end of which passes through the insulating column and is partially placed in the arc-shaped inner net. The end of the center needle placed in the arc-shaped inner net is provided with a first opening, and the side wall of the center needle is provided with a second opening. The first opening and the second opening are spaced apart and connected to each other through the hollow structure.
[0009] Further, the first opening penetrates the center needle in a direction perpendicular to the axis of the center needle.
[0010] Furthermore, the symmetry axis of the first opening coincides with the axis of the center needle.
[0011] Further, the width of the first opening is smaller than the diameter of the center needle.
[0012] Furthermore, the other end of the center needle is a welding end, and the welding end passes through the insulating column and extends out of the housing.
[0013] Furthermore, the welding end is flat, and a plurality of pitting spots are arranged on the outer surface of the welding end.
[0014] Furthermore, a protrusion is provided at the other end of the shell along the circumference of the inner wall, and the arc-shaped internal network card is arranged on the protrusion.
[0015] Furthermore, the shell is made of metal material.
[0016] Compared with the prior art, the advantages of the utility model are:
[0017] In the present application, the center needle of the DC female connector is a hollow structure and is provided with a first opening and a second opening. During the electroplating process of the DC female connector, the electroplating solution can be discharged from the center needle through the first opening and the second opening, thereby preventing the DC female connector from oxidizing and turning black, and enhancing the conductive effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0019] Figure 1 Schematic diagram of the overall structure of the DC female connector in this embodiment;
[0020] Figure 2 This is a schematic diagram of the structure in which the center pin of the DC female connector in this embodiment is embedded in the insulating column;
[0021] Parts names and serial numbers in the figure: 1-housing; 2-arc inner net; 3-insulating column; 4-center pin; 41-first opening; 42-second opening; 43-welding end; 44-protrusion;
[0022] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0025] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "and / or" in the full text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and technical solution that satisfies both A and B; in addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0026] refer to Figure 1 The utility model provides a DC female connector, including a shell 1, an arc-shaped inner net 2, an insulating column 3 and a center needle 4. The shell 1 and the arc-shaped inner net 2 are cylindrical, the insulating column 3 is columnar, the insulating column 3 is embedded in one end of the shell 1, and the arc-shaped inner net 2 is arranged at the other end of the shell 1. The center needle 4 is a hollow structure, one end of which passes through the insulating column 3 and is partially placed in the cavity of the arc-shaped inner net 2. The end of the center needle 4 placed on the end of the arc-shaped inner net 2 is provided with a first opening 41, and the side wall of the center needle 4 is provided with a second opening 42. The first opening 41 and the second opening 42 are arranged at intervals and are connected to each other through the hollow structure. Optionally, the first opening 41 and the second opening 42 are arranged at intervals along the axial direction of the center needle 4.
[0027] It can be understood that the insulating column 3 can fix the center pin 4 and insulate the center pin 4 from the housing 1. The housing 1 of the DC female connector of the present application is used to connect with the housing of the male connector. The insulating column 3 in the DC female connector is embedded in the housing 1. The user can clamp the plastic insulating column 3 to facilitate the installation and transfer of the DC female connector.
[0028] In the present application, the center needle 4 of the DC female connector is a hollow structure, made of 62 copper, which is not easy to rust and has good conductivity. Compared with the hollow stretch needles on the market, the material is thicker and the quality is more stable. The center needle 4 is provided with a first opening 41 and a second opening 42. During the electroplating process of the DC female connector, the electroplating solution flowing into the gap at one end of the center needle 4 can be discharged from the center needle 4 through the first opening 41 and the second opening 42 at the other end, effectively preventing the DC female connector from oxidizing and blackening, and enhancing the conductive effect.
[0029] In other embodiments, a third opening may be further provided on the side wall of the center needle 4 close to the first opening 41 , so that during the electroplating process of the DC female connector, the electroplating solution can be discharged from the center needle 4 more quickly, thereby reducing the operation time.
[0030] Specifically, the first opening 41 penetrates the center needle 4 along the axial direction of the center needle 4 .
[0031] In this embodiment, the width of the first opening 41 is smaller than the diameter of the center needle 4 , generally between 0.095 mm and 0.11 mm, and the symmetry axis of the first opening 41 coincides with the axis of the center needle 4 .
[0032] refer to Figure 1 The side wall of the arc inner net 2 is relatively inwardly concave to form an arc-shaped annular three-dimensional structure, which is arranged on the inner wall of the shell 1. An insulating column 3 is embedded at one end of the shell 1, and a protrusion 44 is arranged at the other end toward the inner circumference. The arc inner net 2 is clamped between the insulating column 3 and the protrusion 44 to limit the arc inner net 2 from shaking or falling off in the shell 1. The arc inner net 2 has the functions of conducting electricity and limiting the tightness of the plug-in force. Specifically, the protrusion 44 is formed by bending the end of the shell 1 inward.
[0033] refer to Figure 2 One end of the center pin 4 is connected to the male connector, and the other end of the center pin 4 is a welding end 43. The welding end 43 passes through the insulating column 3 and extends out of the housing 1 to achieve electrical connection between the DC female connector and the male connector.
[0034] Specifically, the welding end 43 is flat, and a plurality of pits are provided on the outer surface of the welding end 43. It can be understood that during soldering, the provision of the pits can make the soldering more stable.
[0035] Specifically, the housing 1 is made of metal.
[0036] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.
Claims
1. A DC female connector, characterized in that: include: shell; An arc-shaped inner net is placed inside the outer shell; An insulating column, wherein the insulating column is embedded in one end of the housing; The center needle is a hollow structure, one end of which passes through the insulating column and is partially placed in the arc-shaped inner net. The end of the center needle placed in the arc-shaped inner net is provided with a first opening, and the side wall of the center needle is provided with a second opening. The first opening and the second opening are spaced apart and connected to each other through the hollow structure.
2. The DC female connector according to claim 1, characterized in that: The first opening penetrates the center needle along a direction perpendicular to the axis of the center needle.
3. The DC female connector according to claim 2, characterized in that: The symmetry axis of the first opening coincides with the axis of the center needle.
4. The DC female connector according to claim 1, characterized in that: The width of the first opening is smaller than the diameter of the center needle.
5. The DC female connector according to claim 1, characterized in that: The other end of the center pin is a welding end, and the welding end passes through the insulating column and extends out of the housing.
6. The DC female connector according to claim 5, characterized in that: The welding end is flat, and a plurality of pitting spots are arranged on the outer surface of the welding end.
7. The DC female connector according to claim 5, characterized in that: The other end of the shell is provided with a protrusion along the circumference of the inner wall, and the arc-shaped internal network card is arranged on the protrusion.
8. The DC female connector according to claim 1, characterized in that: The shell is made of metal material.