Type-c female to female adapter structure
Patent Information
- Application Number
- CN202522478981.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-22
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-11-22
AI Technical Summary
[0004]然而传统转接连接器的结构设计存在明显短板，其核心部件包含三组独立PCB板、两组焊接壳体以及外部防护外壳等，繁杂的零部件构成直接导致生产与组装流程环节增多
[0015]本实用新型的有益效果为：1、减少的零部件数量，提高生产效率以及降低制作成本；2、减少组装和焊接步骤，降低制造误差，提高连接稳定性和使用寿命；3、由于无需预留焊接结构，使得连接器的长度能够大大缩短，便于携带，也进一步减低材料成本。
Smart Images
Figure CN224889932U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connector structures, and in particular to a Type-C female-to-female adapter structure. Background Technology
[0002] Type-C cables, with their advantages of high-speed transmission and bidirectional power supply, have become the mainstream interface configuration for electronic devices. However, in practical use, they often face the problem of insufficient cable length, requiring the use of adapter connectors to extend the cable length. The core design of these adapter connectors is that both ends are equipped with Type-C female interfaces. By connecting the male ends of two Type-C cables, the overall cable length can be seamlessly extended to meet the needs of long-distance device connections.
[0003] From a structural perspective, most adapter connectors on the market currently adopt a modular assembly method: first, the end PCB board with gold fingers is assembled inside the welding shell, and then the middle PCB board is welded and fixed through the pre-set solder feet at the end of the welding shell, so that the gold fingers on both end PCB boards form a circuit through the middle PCB board. Finally, the complete shell is fitted on the outside of the welding shell and the middle PCB board to complete the overall encapsulation and form a ready-to-use adapter connector.
[0004] However, the traditional adapter connector's structural design has significant shortcomings. Its core components include three independent PCB boards, two sets of soldered housings, and an external protective shell. This complex component composition directly increases the number of steps in the production and assembly process. It requires precise control over the soldering accuracy of multiple PCB boards and the assembly tolerances of the housings, as well as multiple quality inspection processes to ensure conductivity stability. This increases production difficulty and labor costs, and also keeps material procurement costs high. Therefore, it is necessary to develop a Type-C female-to-female adapter structure to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a Type-C female-to-female adapter structure to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A Type-C female-to-female adapter structure includes a PCB board, a copper foil trace section, a first upper gold finger, a second upper gold finger, a first lower gold finger, and a second lower gold finger. The PCB board includes an integrally formed first connecting plate, a second connecting plate, and a central conductive plate. The first connecting plate and the second connecting plate are respectively connected to the front and rear ends of the central conductive plate. The copper foil trace section covers the upper and lower sides of the central conductive plate. The first upper gold finger and the first lower gold finger are respectively fixed to the upper and lower sides of the first connecting plate. The second upper gold finger and the second lower gold finger are respectively fixed to the upper and lower sides of the second connecting plate. The first upper gold finger, the second upper gold finger, the first lower gold finger, and the second lower gold finger are connected through the copper foil trace section.
[0008] Further description of the present invention: The PCB board also includes snap-fit bosses, and four sets of snap-fit bosses are provided and respectively connected to the left and right front sides of the first connecting plate and the left and right rear sides of the second connecting plate.
[0009] Further description of the present invention: The PCB board also includes limiting bosses, and four sets of limiting bosses are provided and respectively connected to the left and right sides of the front end of the central conductive plate and the left and right sides of the rear end of the central conductive plate.
[0010] Further description of this utility model: The first upper gold finger, the second upper gold finger, the first lower gold finger, and the second lower gold finger are each provided with twelve sets of gold fingers.
[0011] Further description of the present invention: The four sets of gold fingers on each side of the first upper gold finger are connected one-to-one with the four sets of gold fingers on each side of the second upper gold finger, and the four sets of gold fingers on each side of the first lower gold finger are connected one-to-one with the four sets of gold fingers on each side of the second lower gold finger.
[0012] Further description of this utility model: The four groups of gold fingers in the middle of the first upper layer gold fingers are, from left to right, CC1 gold fingers, D+ gold fingers, D- gold fingers and SBU1 gold fingers; the four groups of gold fingers in the middle of the first lower layer gold fingers are, from right to left, CC2 gold fingers, D+ gold fingers, D- gold fingers and SBU2 gold fingers; the four groups of gold fingers in the middle of the second upper layer gold fingers are, from right to left, CC2 gold fingers, D+ gold fingers, D- gold fingers and SBU2 gold fingers; the four groups of gold fingers in the middle of the second lower layer gold fingers are, from left to right, CC1 gold fingers, D+ gold fingers, D- gold fingers and SBU1 gold fingers; the four groups of D+ gold fingers are interconnected; the four groups of D- gold fingers are interconnected; the two groups of CC1 gold fingers are interconnected; the two groups of CC2 gold fingers are interconnected; the SBU1 gold fingers of the first upper layer gold fingers are interconnected with the SBU2 gold fingers of the second upper layer gold fingers; the SBU2 gold fingers of the first lower layer gold fingers are interconnected with the SBU1 gold fingers of the second lower layer gold fingers.
[0013] Further description of the present invention: It also includes a plastic shell, which is wrapped around the outside of the PCB board. Both the front and rear ends of the plastic shell are provided with plug-in ports, and the first connecting plate and the second connecting plate correspond to the two sets of plug-in ports respectively.
[0014] Further description of this utility model: The plastic shell is provided with a fastening ring.
[0015] The beneficial effects of this utility model are: 1. Reducing the number of parts, improving production efficiency and reducing manufacturing costs; 2. Reducing assembly and welding steps, reducing manufacturing errors, and improving connection stability and service life; 3. Since there is no need to reserve welding structure, the length of the connector can be greatly shortened, making it easy to carry and further reducing material costs. Attached Figure Description
[0016] Figure 1 This is a structural diagram of the front and back of this utility model (view from top and bottom).
[0017] Figure 2 This is a schematic diagram showing the connection between the upper and lower gold fingers in this utility model;
[0018] Figure 3 This is a three-dimensional view of the overall structure of this utility model (including the plastic shell);
[0019] Explanation of reference numerals in the attached figures:
[0020] 1. PCB board; 11. First connecting board; 12. Second connecting board; 13. Central conductive board; 14. Snap-fit boss; 15. Limiting boss; 2. Copper foil trace section; 3. First upper gold finger; 4. Second upper gold finger; 5. First lower gold finger; 6. Second lower gold finger; 7. Plastic shell; 71. Plug-in port; 72. Snap-fit ring. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings:
[0022] like Figures 1 to 3As shown, a Type-C female-to-female adapter structure includes a PCB board 1, a copper foil trace section 2, a first upper gold finger 3, a second upper gold finger 4, a first lower gold finger 5, and a second lower gold finger 6. The PCB board 1 includes an integrally formed first connecting plate 11, a second connecting plate 12, and a central conductive plate 13. The first connecting plate 11 and the second connecting plate 12 are respectively connected to the front and rear ends of the central conductive plate 13. The copper foil trace section 2 covers the upper and lower sides of the central conductive plate 13. The first upper gold finger 3 and the first lower gold finger 5 are respectively fixed to the upper and lower sides of the first connecting plate 11. The second upper gold finger 4 and the second lower gold finger 6 are respectively fixed to the upper and lower sides of the second connecting plate 12. The first upper gold finger 3, the second upper gold finger 4, the first lower gold finger 5, and the second lower gold finger 6 are connected through the copper foil trace section 2.
[0023] By setting up an integrated PCB board 1 and placing the gold fingers for connection during insertion at the end of the PCB board 1, without the need for a soldering shell, the advantages are: 1. Reduced number of parts, improved production efficiency and reduced manufacturing costs; 2. Reduced assembly and soldering steps, reduced manufacturing errors, improved connection stability and service life; 3. Since there is no need to reserve a soldering structure, the length of the connector can be greatly shortened, making it easier to carry and further reducing material costs.
[0024] The PCB board 1 also includes fastening bosses 14, which are arranged in four sets and are respectively connected to the left and right front sides of the first connecting plate 11 and the left and right rear sides of the second connecting plate 12.
[0025] During insertion, the snap-fit boss 14 engages with the spring clip structure of the Type-C male terminal, making it less likely to come loose after insertion and ensuring the stability of the connection.
[0026] The PCB board 1 also includes limiting bosses 15, which are arranged in four groups and are respectively connected to the left and right sides of the front end of the central conductive plate 13 and the left and right sides of the rear end of the central conductive plate 13.
[0027] After the PCB board 1 is placed in the injection mold and the outer shell is injection molded, the limiting boss 15 is embedded in the plastic shell 7, so that the PCB board 1 will not be offset from the plastic shell 7, thereby further improving the stability of the connection.
[0028] The first upper-layer gold finger 3, the second upper-layer gold finger 4, the first lower-layer gold finger 5, and the second lower-layer gold finger 6 are each equipped with twelve sets of gold fingers to meet the mainstream Type-C connection requirements.
[0029] The first upper layer gold fingers 3 has four sets of gold fingers on each side and the second upper layer gold fingers 4 have four sets of gold fingers on each side respectively. The first lower layer gold fingers 5 has four sets of gold fingers on each side and the second lower layer gold fingers 6 have four sets of gold fingers on each side respectively.
[0030] The first upper-layer gold finger 3 has four groups of gold fingers in the middle, from left to right: CC1 gold finger, D+ gold finger, D- gold finger, and SBU1 gold finger. The first lower-layer gold finger 5 has four groups of gold fingers in the middle, from right to left: CC2 gold finger, D+ gold finger, D- gold finger, and SBU2 gold finger. The second upper-layer gold finger 4 has four groups of gold fingers in the middle, from right to left: CC2 gold finger, D+ gold finger, D- gold finger, and SBU2 gold finger. The second lower-layer gold finger 6 has four groups of gold fingers in the middle, from left to right: CC1 gold finger, D+ gold finger, D- gold finger, and SBU1 gold finger. The four groups of D+ gold fingers are interconnected, the four groups of D- gold fingers are interconnected, the two groups of CC1 gold fingers are interconnected, the two groups of CC2 gold fingers are interconnected, the SBU1 gold finger of the first upper-layer gold finger 3 is interconnected with the SBU2 gold finger of the second upper-layer gold finger 4, and the SBU2 gold finger of the first lower-layer gold finger 5 is interconnected with the SBU1 gold finger of the second lower-layer gold finger 6. This connection ensures that the pin definitions of each gold finger of the Type-C data cable connected to both sides of the adapter structure remain consistent with the standard after passing through the adapter structure.
[0031] This design also includes a plastic housing 7, which surrounds the PCB board 1. Both ends of the plastic housing 7 have insertion ports 71, and the first connecting plate 11 and the second connecting plate 12 correspond to the two sets of insertion ports 71 respectively. This design improves production efficiency by directly injection molding the plastic housing 7 onto the outside of the PCB board 1. During insertion, the male connector is inserted into the insertion port 71 on the plastic housing 7, eliminating the need for a soldered housing inside the insertion port 71, thus significantly reducing production costs.
[0032] The plastic outer shell 7 is provided with a fastening ring 72. It is used to fasten keychains, hooks, etc., for easy carrying and hanging.
[0033] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.
Claims
1. A Type-C female-to-female adapter structure, characterized in that: The device includes a PCB board, a copper foil trace section, a first upper gold finger, a second upper gold finger, a first lower gold finger, and a second lower gold finger. The PCB board includes an integrally formed first connecting plate, a second connecting plate, and a central conductive plate. The first connecting plate and the second connecting plate are respectively connected to the front and rear ends of the central conductive plate. The copper foil trace section covers the upper and lower sides of the central conductive plate. The first upper gold finger and the first lower gold finger are respectively fixed to the upper and lower sides of the first connecting plate. The second upper gold finger and the second lower gold finger are respectively fixed to the upper and lower sides of the second connecting plate. The first upper gold finger, the second upper gold finger, the first lower gold finger, and the second lower gold finger are connected through the copper foil trace section.
2. The Type-C female-to-female adapter structure according to claim 1, characterized in that: The PCB board also includes four sets of fastening bosses, which are respectively connected to the left and right front sides of the first connecting plate and the left and right rear sides of the second connecting plate.
3. The Type-C female-to-female adapter structure according to claim 1, characterized in that: The PCB board also includes limiting bosses, which are provided in four sets and are respectively connected to the left and right front sides of the central conductive plate and the left and right rear sides of the central conductive plate.
4. The Type-C female-to-female adapter structure according to claim 1, characterized in that: The first upper gold finger, the second upper gold finger, the first lower gold finger, and the second lower gold finger are each provided with twelve sets of gold fingers.
5. A Type-C female-to-female adapter structure according to claim 4, characterized in that: The four sets of gold fingers on each side of the first upper layer gold fingers are connected one-to-one with the four sets of gold fingers on each side of the second upper layer gold fingers, and the four sets of gold fingers on each side of the first lower layer gold fingers are connected one-to-one with the four sets of gold fingers on each side of the second lower layer gold fingers.
6. A Type-C female-to-female adapter structure according to claim 4, characterized in that: The first upper-layer gold fingers have four groups of gold fingers in the middle, from left to right: CC1, D+, D-, and SBU1. The first lower-layer gold fingers have four groups of gold fingers in the middle, from right to left: CC2, D+, D-, and SBU2. The second upper-layer gold fingers have four groups of gold fingers in the middle, from right to left: CC2, D+, D-, and SBU2. The second lower-layer gold fingers have four groups of gold fingers in the middle, from left to right: CC1, D+, D-, and SBU1. The four groups of D+ gold fingers are interconnected. The four groups of D- gold fingers are interconnected. The two groups of CC1 gold fingers are interconnected. The two groups of CC2 gold fingers are interconnected. The SBU1 gold finger of the first upper-layer gold finger is interconnected with the SBU2 gold finger of the second upper-layer gold finger. The SBU2 gold finger of the first lower-layer gold finger is interconnected with the SBU1 gold finger of the second lower-layer gold finger.
7. A Type-C female-to-female adapter structure according to claim 1, characterized in that: It also includes a plastic shell that wraps around the outside of the PCB board. Both ends of the plastic shell are provided with plug-in ports, and the first connecting plate and the second connecting plate are respectively located within the two sets of plug-in ports.
8. A Type-C female-to-female adapter structure according to claim 7, characterized in that: The plastic outer shell is equipped with a fastening ring.