Rubber core structure of Type-C connector
By adopting a one-piece metal grounding shell structure formed by a stretching process, the problem of warping and deformation of Type-C connectors during mating is solved, achieving higher structural strength and a more stable connection, while reducing assembly costs.
Patent Information
- Application Number
- CN202520131804.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-20
AI Technical Summary
The metal grounding shell of existing Type-C connectors is prone to warping and deformation when mated with the male connector, leading to poor contact.
The metal grounding shell structure, which is integrally formed by stretching process, includes a hollow cylinder and connecting lugs. It is fastened to the fixing groove of the rubber core by a bayonet. During assembly, the hollow cylinder is fitted onto the rear of the tongue plate and fixed by bending process to enhance the connection stability.
The structural strength of the metal grounding shell is improved, preventing deformation and detachment, ensuring the stability and durability of the connector, and reducing assembly costs.
Smart Images
Figure CN223797592U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical connector technology, and in particular to a core structure for a Type-C connector. Background Technology
[0002] Type-C connectors are widely used in various electronic products for charging or signal transmission. Existing Type-C connectors typically consist of a core, terminals, a metal grounding shell, a metal inner shell, and a metal outer shell. The metal grounding shell surrounds the core and is connected to the device's grounding system or the earth via a grounding line. This grounding shell prevents external electromagnetic signals from interfering with high-speed data transmission and charging signals within the connector, and also prevents electromagnetic leakage within the connector.
[0003] The metal grounding shell on the Type-C connector's core is formed using a stamping process. Traditional stamping first involves cutting a large sheet of metal into appropriately sized blanks through a blanking process, and then bending the blanks to form a cylindrical shell. See also... Figure 1 The surface of the metal grounding shell 1a formed by this traditional stamping process has gaps. When the Type-C connector is mated with the male connector, the male connector may press against the front end of the metal grounding shell, causing the thin sheet of the metal grounding shell to fold outward and deform. This can lead to poor contact when the Type-C connector is mated with the male connector. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a core structure for a Type-C connector with high strength of metal ground shell structure, which is not prone to warping or deformation when the Type-C connector is mated with the male connector.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A core structure for a Type-C connector includes a core, a plurality of terminals disposed on the core, and a metal grounding shell disposed on the outer periphery of the core. The core includes a tongue plate, a positioning part, and a base arranged sequentially from front to back. The top and bottom of the positioning part are provided with fixing grooves, and the fixing grooves are provided with protrusions. The metal grounding shell is integrally formed by a stretching process. The metal grounding shell includes a hollow cylindrical body and a connecting ear. The connecting ear is integrally disposed on the top and bottom of the rear end of the hollow cylindrical body. Its shape matches the fixing groove and is used to press against the fixing groove. The connecting ear is provided with a latch for engaging with the protrusion.
[0007] In some embodiments, a raised edge is provided between the rear end of the hollow cylinder and the connecting ear, the raised edge being parallel to the front end face of the positioning part and used to abut against the front end face of the positioning part.
[0008] In some embodiments, the terminal includes a first terminal and a second terminal. The front ends of the first terminal and the second terminal are respectively provided with a first contact gold finger and a second contact gold finger. The first contact gold finger is embedded in the top of the tongue plate, and the second contact gold finger is embedded in the bottom of the tongue plate. The rear ends of the first terminal and the second terminal extend out of the lower end of the base.
[0009] In some embodiments, the core structure of the Type-C connector further includes a middle clip, which is embedded inside the core and located between the first contact gold finger and the second contact gold finger. The front end of the middle clip has protrusions on both sides protruding from the sidewall of the tongue plate. When the Type-C connector is plugged into the male connector, the protrusions contact the male connector, which can reduce the wear of the core by the male connector.
[0010] Compared with the prior art, this utility model achieves at least the following beneficial effects:
[0011] The metal grounding shell of this utility model is a hollow cylindrical structure integrally formed by a stretching process. The hollow cylindrical structure has high overall strength, and when the Type-C connector and the male connector are mated, the thin sheet of the metal grounding shell is less likely to fold outward and deform. During assembly, the hollow cylindrical body of the metal grounding shell is inserted from the front end of the tongue plate to the rear end, so that the hollow cylindrical body is fitted on the rear part of the tongue plate. Then, the connecting lug is pressed into the fixing groove by a bending process. At the same time, the bayonet and the protrusion are engaged, which can realize a stable connection between the metal grounding shell and the rubber core and prevent it from falling off during use. Attached Figure Description
[0012] One or more embodiments of the present invention will now be described by way of example only with reference to the accompanying drawings, in which:
[0013] Figure 1 This is an exploded structural diagram of the existing Type-C connector core.
[0014] Figure 2 This is an exploded structural diagram of an embodiment of this application;
[0015] Figure 3 This is a schematic diagram of the structure of an embodiment of this application;
[0016] Figure 4 This is a structural schematic diagram from another perspective of an embodiment of this application.
[0017] The following are the labels in the diagram: 1. Core; 11. Tongue plate; 12. Positioning part; 121. Fixing groove; 122. Protrusion; 13. Base; 2. Terminal; 21. First terminal; 211. First contact gold finger; 22. Second terminal; 221. Second contact gold finger; 3. Metal grounding shell; 31. Hollow cylinder; 32. Connecting ear; 321. Bayonet; 4. Protruding edge; 5. Middle clip; 51. Protrusion. Detailed Implementation
[0018] The present invention will now be described in detail with reference to exemplary embodiments shown in the accompanying drawings. However, it should be understood that the present application may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided herein to make the disclosure of this application more complete and to fully convey the concept of the present application to those skilled in the art.
[0019] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Moreover, "above," "over," and "on top" of a second 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" of a second 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.
[0020] like Figures 2-4 As shown, in one embodiment of the present invention, the core structure of the Type-C connector includes a core 1, a plurality of terminals 2 disposed on the core 1, and a metal grounding shell 3 disposed on the outer periphery of the core 1. The core 1 includes a tongue plate 11, a positioning part 12, and a base 13 arranged sequentially from front to back.
[0021] The positioning part 12 has a fixing groove 121 at the top and bottom, and a protrusion 122 is provided in the fixing groove 121. The metal grounding shell 3 is integrally formed by stretching process. The metal grounding shell 3 includes a hollow cylinder 31 and a connecting ear 32. The inner cavity of the hollow cylinder 31 matches the outer contour of the rear part of the tongue plate 11. The connecting ear 32 is integrally provided at the top and bottom of the rear end of the hollow cylinder 31 and matches the shape of the fixing groove 121. The connecting ear 32 is provided with a bayonet 321 that matches the protrusion 122. The metal grounding shell 3 plays the role of grounding and shielding against external electromagnetic interference. It should be noted that during assembly, the hollow cylindrical body 31 of the metal grounding shell 3 is inserted from the front end of the tongue plate 11 to the rear end, so that the hollow cylindrical body 31 is fitted onto the rear part of the tongue plate 11. Then, the connecting ear 32 is pressed into the fixing groove 121 by bending process, and at the same time, the buckle 321 and the protrusion 122 are engaged, so as to achieve a stable connection between the metal grounding shell 3 and the rubber core 1 and avoid falling off during use.
[0022] Specifically, a raised edge 4 is provided between the rear end of the hollow cylinder 31 and the connecting ear 32, and the raised edge 4 is parallel to the front end face of the positioning part 12. When the hollow cylinder 31 is fitted onto the rear part of the tongue plate 11, the raised edge 4 is used to abut against the front end face of the positioning part 12 to limit the hollow cylinder 31, and can increase the contact area between the rear end of the hollow cylinder 31 and the positioning part 12, increase the friction with the positioning part 12, and improve the connection stability between the metal grounding shell 3 and the rubber core 1.
[0023] In addition, terminal 2 includes a first terminal 21 and a second terminal 22. The front ends of the first terminal 21 and the second terminal 22 are respectively provided with a first contact gold finger 211 and a second contact gold finger 221. The first contact gold finger 211 is embedded in the top of the tongue plate 11, and the second contact gold finger 221 is embedded in the bottom of the tongue plate 11. The working parts of the first contact gold finger 211 and the second contact gold finger 221 are exposed on the surface of the tongue plate 11 so as to realize the connection and conduction function of the terminal. The second contact gold finger 221 is embedded in the bottom of the tongue plate 11. The rear ends of the first terminal 21 and the second terminal 22 extend out of the lower end of the base 13, thereby connecting with the external circuit board.
[0024] The core 1 structure of the Type-C connector also includes a middle clip 5, which is embedded inside the core 1 and located between the first contact gold finger 211 and the second contact gold finger 221. The front sides of the middle clip 5 have protrusions 51 extending from the sidewalls of the tongue plate 11. The middle clip 5 is made of metal. When the Type-C connector is plugged into a male connector, the side protrusions of the middle clip 5 can contact the male connector, thereby reducing wear on the core 1 from the male connector and extending the insertion and removal life of the core 1.
[0025] The metal grounding shell 3 of this utility model is integrally formed by stretching process. The formed metal grounding shell 3 has high structural strength, is simple to assemble, reduces assembly labor costs, and can eliminate the drawback of outward deformation of the metal grounding shell 3 when the Type-C connector is plugged into the male connector compared with the metal grounding shell 3 formed by stamping process.
[0026] It should be understood that all the above embodiments are exemplary and not restrictive. Any modifications, equivalent changes and alterations made by those skilled in the art to the specific embodiments described above under the concept of this utility model shall still fall within the scope of the technical solution of this utility model.
Claims
1. A glue core structure of a Type-C connector, comprising a glue core, a plurality of terminals arranged on the glue core, and a metal ground shell arranged on the outer periphery of the glue core, the glue core comprising a tongue plate, a positioning portion, and a base portion arranged in sequence from front to back, characterized in that: The top and bottom of the positioning part are provided with fixing grooves, and the fixing grooves are provided with protrusions; the metal grounding shell is integrally formed by a stretching process, and the metal grounding shell comprises a hollow cylinder and a connecting lug, the connecting lug is integrally arranged on the top and bottom of the rear end of the hollow cylinder, is matched with the shape of the fixing groove and is used for being press-connected in the fixing groove, and a bayonet is arranged on the connecting lug and is used for being buckled with the protrusion.
2. The glue core structure of Type-C connector according to claim 1, characterized in that: A convex edge part is arranged between the rear end of the hollow cylinder and the connecting lug, the convex edge part is parallel to the front end face of the positioning part, and is used for abutting against the front end face of the positioning part.
3. The glue core structure of Type-C connector according to claim 1, characterized in that: The terminal comprises a first terminal and a second terminal, the front ends of the first terminal and the second terminal are respectively provided with a first contact gold finger and a second contact gold finger, the first contact gold finger is embedded in the top of the tongue plate, the second contact gold finger is embedded in the bottom of the tongue plate, and the rear ends of the first terminal and the second terminal extend out of the lower end of the base.
4. The glue core structure of Type-C connector according to claim 3, characterized in that: A middle clamping piece is further arranged, the middle clamping piece is embedded in the inside of the rubber core and is located between the first contact gold finger and the second contact gold finger, and the front end of the middle clamping piece is provided with convex parts protruding from the side wall of the tongue plate on both sides.