A TYPE C dual-shell connector

Abstract

This utility model discloses a TYPE C double-shell connector, belonging to the field of electrical connector technology. It comprises a shell, a terminal assembly structure, and a sheath. The terminal assembly structure is disposed within the shell, and the sheath is fitted onto the shell. The key feature is that the terminal assembly structure includes a first terminal piece, a middle spacer, and a second terminal piece spaced apart at intervals. The middle spacer has protrusions on both sides. One protrusion is short-circuited and soldered to the first and twelfth terminals of the first terminal piece (GND ground), and the other protrusion is short-circuited and soldered to the first and twelfth terminals of the second terminal piece (GND ground). The first and second terminal pieces are fixed to the middle spacer using a plastic encapsulation process. The shell and sheath are connected by an inverted snap-fit ​​connection. This design features stable quality, high production efficiency, low cost, and good stability.

Description

Technical Field

[0001] This utility model belongs to the field of electrical connector technology and relates to a TYPE C double-shell connector. Background Technology

[0002] like Figure 1 , Figure 2 As shown, the existing TYPE C double-shell connector consists of a shell 1', a terminal assembly structure 2' disposed inside the shell 1', and a sheath 3' outside the shell 1', wherein the sheath 3' is fixed to the shell 1' by spot welding. However, in actual use, this spot welding connection method is prone to loosening or even falling off of the sheath, affecting the overall stability of the connector.

[0003] In addition, the existing terminal block structure 2' is not only expensive, increasing the production cost of the product, but also has poor quality stability. It is prone to performance fluctuations under different usage environments, resulting in poor grounding performance when the male and female are mated together, which in turn affects the stability of data transmission and the reliability of power supply, making it difficult to meet the market demand for high-quality TYPE C double shell connectors. Utility Model Content

[0004] The purpose of this invention is to provide a TYPE C double-shell connector that improves product stability through structural improvements.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A TYPE C dual-shell connector comprises a shell, a terminal assembly structure, and a sheath. The terminal assembly structure is disposed within the shell, and the sheath is fitted onto the shell. The connector is characterized in that: the terminal assembly structure includes a first terminal piece, a middle spacer, and a second terminal piece spaced apart at intervals; the middle spacer has protrusions on both sides, one protrusion being short-circuited and soldered to the first and twelfth terminals of the first terminal piece to GND ground, and the other protrusion being short-circuited and soldered to the first and twelfth terminals of the second terminal piece to GND ground; the first terminal piece, the second terminal piece, and the middle spacer are fixed using a plastic encapsulation process; the shell and the sheath are connected by an inverted snap-fit ​​connection.

[0007] As a further improvement of one embodiment of the present utility model, the outer shell is provided with an inverted buckle, and the protective shell is provided with a slot that matches the inverted buckle.

[0008] As a further improvement of one embodiment of the present invention, the number of the undercuts is two and they are symmetrically distributed along the central axis of the outer shell.

[0009] As a further improvement of one embodiment of the present invention, a spring sheet is provided on the outer shell.

[0010] As a further improvement of one embodiment of the present invention, the protective shell is provided with downwardly extending welding feet on both sides, and the welding feet are flush with the bottom of the welding feet at the lower end of the outer shell.

[0011] As a further improvement of one embodiment of the present invention, the first terminal piece and the second terminal piece have the same structure, each having 12 terminals.

[0012] As a further improvement of one embodiment of this utility model, from left to right, the first terminal has an isosceles trapezoidal first protrusion on the side of the middle portion facing the second terminal, and the second terminal has a first groove corresponding to the first protrusion on the middle portion; the fourth terminal has an isosceles trapezoidal second protrusion on the side of the middle portion facing the third terminal, and the third terminal has a second groove corresponding to the second protrusion on the middle portion; the ninth terminal has an isosceles trapezoidal third protrusion on the side of the middle portion facing the tenth terminal, and the tenth terminal has a third groove corresponding to the third protrusion on the middle portion; the twelfth terminal has an isosceles trapezoidal fourth protrusion on the side of the middle portion facing the eleventh terminal, and the eleventh terminal has a fourth groove corresponding to the fourth protrusion on the middle portion; the height of the first, second, third, and fourth protrusions is 0.03 mm, and the depth of the first, second, third, and fourth grooves is 0.03 mm. The middle sides of other terminals are appropriately widened, and the widened structure is also an isosceles trapezoid with a height of less than 0.01 mm and greater than 0.005 mm.

[0013] As a further improvement of one embodiment of the present invention, the welding feet of the outer shell are bent outward and form an abutting surface at their upper end, and the lower end of the sheath abuts against the abutting surface.

[0014] The above technical solution has the following advantages: The plug assembly structure adopts a combination of a first terminal piece, a middle spacer, and a second terminal piece, and is formed by molding, which has the characteristics of stable quality, high production efficiency, and low cost; at the same time, the terminals on the first and second terminal pieces are widened and improved to meet the HP QRS test USB 4 transmission speed of 40Gbps; at the same time, the shell and the sheath are connected by an inverted snap, and the solder feet are increased to ensure the stability of the product after soldering; the shell is equipped with a spring contact to improve the grounding performance of the male and female plugs. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0017] Figure 1 A 3D view of an existing TYPE C dual-shell connector.

[0018] Figure 2 This is an exploded schematic diagram of an existing TYPE C double-shell connector.

[0019] Figure 3 This is a three-dimensional schematic diagram of the present invention.

[0020] Figure 4 A three-dimensional schematic diagram of the outer shell provided for this utility model.

[0021] Figure 5 A three-dimensional schematic diagram of the protective shell provided by this utility model.

[0022] Figure 6 This is a three-dimensional schematic diagram of the plug assembly structure provided by this utility model.

[0023] Figure 7 A schematic diagram of the combination of the first terminal piece, the second terminal piece, and the intermediate spacer provided by this utility model.

[0024] Figure 8 A schematic diagram of the intermediate spacer structure provided by this utility model.

[0025] Figure 9 A schematic diagram of the structure of the first terminal piece / second terminal piece provided by this utility model.

[0026] Figure 10 for Figure 9 An enlarged schematic diagram of region A in the middle. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model. Example

[0030] See Figures 3-10 As shown, a TYPE C double-shell connector consists of a shell 1, a terminal assembly structure 2, and a sheath 3. The terminal assembly structure 2 is disposed inside the shell 1, and the sheath 3 is sleeved on the shell 1, which serves to protect and enhance the structural stability.

[0031] The plug assembly structure 2 includes a first terminal piece 21, a middle spacer 22, and a second terminal piece 23 spaced apart. Raised dots 221 are provided on both sides of the middle spacer 22. During manufacturing, the raised dots on one side of the middle spacer 22 are short-circuited and soldered to the first and twelfth terminals of the first terminal piece 21 to connect the GND ground wire; similarly, the raised dots on the other side are short-circuited and soldered to the first and twelfth terminals of the second terminal piece 23 to connect the GND ground wire on the other side. This unique soldering method effectively improves grounding performance and ensures the stability of signal transmission. The first terminal piece 21, the second terminal piece 23, and the middle spacer 22 are fixed using a plastic encapsulation process, which not only ensures a tight bond between the three but also enhances the overall structural strength and insulation performance.

[0032] The outer shell 1 and the protective shell 3 are connected by an inverted snap-fit ​​method. Compared with the traditional spot welding, this connection method is more secure and reliable, and can effectively prevent loosening and falling off during use.

[0033] Specifically, the outer shell 1 is provided with a buckle 22, and the protective shell 3 is provided with a corresponding slot 31 that matches the buckle 22. In this embodiment, the number of buckles 22 is set to two, and the two buckles 22 are symmetrically distributed along the central axis of the outer shell 1. This symmetrical distribution design enables the outer shell 1 and the protective shell 3 to be subjected to uniform force when connected, further enhancing the stability of the connection.

[0034] In this embodiment, the first terminal piece 21 and the second terminal piece 23 have the same structure and are both equipped with 12 terminals to realize the corresponding electrical connection function.

[0035] In terms of the specific design of the terminal structure, the terminals are numbered from left to right. The middle of the first terminal, facing the second terminal, forms an isosceles trapezoidal first protrusion 211, while the middle of the second terminal has a corresponding first groove 212 that matches the first protrusion 211. This protrusion-groove mating structure enhances the positioning accuracy between adjacent terminals, reduces relative displacement between terminals, and improves the stability of the connector.

[0036] Similarly, the fourth terminal has a second isosceles trapezoidal protrusion on the side facing the third terminal, and the third terminal has a corresponding second groove on the side facing the tenth terminal; the ninth terminal has a third isosceles trapezoidal protrusion on the side facing the tenth terminal, and the tenth terminal has a corresponding third groove on the side facing the tenth terminal; the twelfth terminal has a fourth isosceles trapezoidal protrusion on the side facing the eleventh terminal, and the eleventh terminal has a corresponding fourth groove on the side facing the eleventh terminal. The height of each protrusion is 0.03 mm, and the depth of each groove is also 0.03 mm. This precise dimensional design ensures a tight fit between the protrusions and grooves.

[0037] For terminals other than the specific terminals mentioned above, the two sides of the middle section are appropriately widened. The widened structure is also an isosceles trapezoid with a height of less than 0.01 mm and greater than 0.005 mm. This widening design enhances the mechanical strength and electrical performance of the terminals without significantly increasing their volume.

[0038] This embodiment improves the terminal assembly structure 2 by combining a first terminal piece 21, a middle spacer 22, and a second terminal piece 23, and molding it using a molding process. This process, by placing the assembled components in a mold and injecting molding material to solidify them, effectively secures the components tightly, ensuring structural integrity and stability, reducing quality issues caused by loose components, and significantly improving production efficiency while reducing material and labor costs.

[0039] Furthermore, the terminals on the first terminal piece 21 and the second terminal piece 23 have been widened and improved. This improvement optimizes the electrical performance of the terminals, enabling them to better meet the requirements of high-speed signal transmission. Actual testing has shown that they can meet the HP QRS test requirement of achieving a USB 4 transmission speed of 40Gbps.

[0040] In this embodiment, to ensure the stability of the product after welding, solder feet 23 are added to the outer shell 1. Simultaneously, downward-extending solder feet 32 ​​are provided on both sides of the sheath 3, and the solder feet 32 ​​are flush with the bottom of the solder feet 23 at the lower end of the outer shell 1. During the welding process, these solder feet can fully contact the circuit board, forming a strong solder joint, effectively preventing the product from loosening during subsequent use.

[0041] In addition, a spring clip 21 is provided on the outer casing 1. When the male and female parts are inserted together, the spring clip 21 can make close contact with the insert, improving grounding performance and ensuring the stability and reliability of signal transmission. The solder feet 23 of the outer casing 1 are bent outward and form an abutment surface 24 at their upper ends. The lower end of the sheath shell 3 abuts against this abutment surface 24. This design further restricts the movement of the sheath shell 3 on the outer casing 1 and improves the stability of the overall structure.

[0042] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0043] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0044] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0045] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A TYPE C double-shell connector, composed of an outer shell, a plug end group structure and a sheath shell, the plug end group structure being arranged in the outer shell, and the sheath shell being sleeved on the outer shell; characterized in that: The plug assembly structure includes a first terminal piece, a middle spacer, and a second terminal piece spaced apart at intervals. The middle spacer has protrusions on both sides. One protrusion is short-circuited and soldered to the first and twelfth terminals of the first terminal piece to the GND ground line, and the other protrusion is short-circuited and soldered to the first and twelfth terminals of the second terminal piece to the GND ground line. The first terminal piece, the second terminal piece, and the middle spacer are fixed by a plastic sealing process. The outer shell and the protective shell are connected by an inverted snap connection.

2. The TYPE C double-shell connector according to claim 1, characterized in that: The outer shell is provided with a buckle, and the protective sleeve is provided with a slot that matches the buckle.

3. The TYPE C double-shell connector according to claim 2, characterized in that: The number of the inverted buckles is two, and they are symmetrically distributed along the central axis of the outer shell.

4. The TYPE C double-shell connector according to claim 1, characterized in that: The outer shell is provided with a spring clip.

5. The TYPE C double-shell connector according to claim 1, characterized in that: The sheath has downward-extending welding feet on both sides, and the welding feet are flush with the bottom of the welding feet at the lower end of the outer shell.

6. The TYPE C double-shell connector according to claim 1, characterized in that: The first terminal piece and the second terminal piece have the same structure, both having 12 terminals.

7. The TYPE C dual-shell connector according to claim 6, characterized in that: Counting from left to right, the first terminal has an isosceles trapezoidal first protrusion on the side of the middle facing the second terminal, and the second terminal has a first groove corresponding to the first protrusion on the middle. The fourth terminal has an isosceles trapezoidal second protrusion on the side of the middle facing the third terminal, and the third terminal has a second groove corresponding to the second protrusion on the middle. The ninth terminal has an isosceles trapezoidal third protrusion on the side of the middle facing the tenth terminal, and the tenth terminal has a third groove corresponding to the third protrusion on the middle. The twelfth terminal has an isosceles trapezoidal fourth protrusion on the side of the middle facing the eleventh terminal, and the eleventh terminal has a fourth groove corresponding to the fourth protrusion on the middle. The height of the first, second, third, and fourth protrusions is 0.03 mm, and the depth of the first, second, third, and fourth grooves is 0.03 mm.

8. The TYPE C dual-shell connector according to claim 1, characterized in that: The welding feet of the outer shell are bent outward and form an abutment surface at their upper ends, and the lower end of the sheath abuts against the abutment surface.

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