Single-row patch type double-layer USB3.0 connector

Abstract

The utility model discloses a single-row surface-mounted double-layer USB 3.0 connector, which comprises a metal shell, an insulating body, an upper-row terminal group and a lower-row terminal group, and is characterized in that each upper terminal of the upper-row terminal group and each lower terminal of the lower-row terminal group adopt SMT (Surface Mount Technology) type design; the tail end of each upper terminal of the upper-row terminal group extends out of the rear side of the bottom of the insulating body and is bent backwards by 90 degrees so as to form a patch type upper terminal welding leg, and the tail end of each lower terminal of the lower-row terminal group extends out of the rear side of the bottom of the insulating body and is bent backwards by 90 degrees so as to form a patch type lower terminal welding leg. The upper terminal welding feet are arranged between the two adjacent lower terminal welding feet, and the upper terminal welding feet and the lower terminal welding feet are arranged in a single row along the length direction of the insulating body, so that an operator only needs to carry out welding once, the welding is simpler, the welding efficiency is greatly improved, the maintenance is more convenient, and the production cost is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and more specifically, to a single-row surface mount dual-layer USB 3.0 connector. Background Technology

[0002] With the development of technology, USB connectors have evolved from USB 1.0 to USB 3.0, significantly increasing transmission speed and reaching a maximum bandwidth of 5Gbps. However, most USB 3.0 connectors currently on the market are single-layer structures with only one interface, which cannot meet user needs. To address this issue, dual-layer USB connectors have gradually emerged, such as the dual-layer USB 3.0 connector with patent authorization announcement number CN 215579205 U, which is easy to install and position. This dual-layer USB 3.0 connector includes a housing, an insulating body disposed within the housing, upper and lower rows of terminals longitudinally distributed on the insulating body, and a separator between the upper and lower rows of terminals, which is relatively stable during insertion and removal. However, this dual-layer USB 3.0 connector still has the following shortcomings: both the upper and lower rows of terminals use a DIP structure, requiring the terminal leads to be vertically inserted into the circuit board holes for soldering, which does not allow for surface mount technology (SMT). Furthermore, the terminal leads are arranged in four rows from front to back, requiring four soldering operations, which greatly reduces soldering efficiency. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned defects in the prior art and provide a single-row surface mount dual-layer USB 3.0 connector, in which all terminals adopt SMT design and all terminal solder feet are arranged in a single row, making soldering simpler, greatly improving soldering efficiency, making maintenance more convenient, and effectively reducing production costs.

[0004] To achieve the above objectives, this utility model provides a single-row surface-mount dual-layer USB 3.0 connector, including a metal shell, an insulating body, an upper row of terminals, and a lower row of terminals. The metal shell covers the outside of the insulating body, and the front end of the metal shell has an opening communicating with the inner cavity of the metal shell. The front end of the insulating body has a horizontally arranged upper tongue plate and a lower tongue plate placed inside the inner cavity of the metal shell. The main body of each upper terminal of the upper row of terminals is embedded in the insulating body, and the head end of each upper terminal protrudes from the bottom of the upper tongue plate. The tail ends of the upper terminals all extend from the bottom rear side of the insulating body and bend backward at a 90-degree angle to form surface-mount upper terminal solder feet. The main body of each lower terminal in the lower row of terminal groups is embedded in the insulating body, and the head end of each lower terminal protrudes from the bottom of the lower tongue plate. The tail ends of each lower terminal extend from the bottom rear side of the insulating body and bend backward at a 90-degree angle to form surface-mount lower terminal solder feet. The upper terminal solder feet are located between two adjacent lower terminal solder feet, and the upper terminal solder feet and lower terminal solder feet are arranged in a single row along the length of the insulating body.

[0005] Preferably, the upper terminal of the upper terminal group includes a first upper terminal and a second upper terminal, the second upper terminal is located between two adjacent first upper terminals, the head of the first upper terminal is provided with a square first upper terminal contact portion, the head of the second upper terminal is provided with a V-shaped second upper terminal elastic contact portion, and the first upper terminal contact portion is located in front of the second upper terminal elastic contact portion.

[0006] Preferably, the lower terminals of the lower terminal group include a first lower terminal and a second lower terminal, the second lower terminal being located between two adjacent first lower terminals, the head of the first lower terminal having a square first lower terminal contact portion, the head of the second lower terminal having a V-shaped second lower terminal elastic contact portion, and the first lower terminal contact portion being located in front of the second lower terminal elastic contact portion.

[0007] Preferably, the first upper terminal contact portion is exposed outside the upper tongue plate from the bottom front end position of the upper tongue plate, and the second upper terminal elastic contact portion extends from the first through hole of the upper tongue plate to the bottom of the upper tongue plate.

[0008] Preferably, the first lower terminal contact portion is exposed outside the lower tongue plate from the bottom front end position of the lower tongue plate, and the second lower terminal elastic contact portion extends from the second through hole of the lower tongue plate to the bottom of the lower tongue plate.

[0009] Preferably, the insulating body includes an upper insulating seat and a lower insulating seat, the lower insulating seat is installed at the lower end of the upper insulating seat, the upper tongue plate is connected to the front end of the upper insulating seat, and the lower tongue plate is connected to the front end of the lower insulating seat.

[0010] Preferably, the upper insulating base has a longitudinally arranged upper insulating back plate on its back, the upper insulating back plate is placed on the back of the lower insulating base, the upper row of terminal groups is embedded in the upper insulating base, and the tail end of each of its upper terminals extends from the bottom of the upper insulating back plate, the lower row of terminal groups is embedded in the lower insulating base, and the tail end of each of its lower terminals extends from the bottom of the lower insulating base.

[0011] Preferably, the upper insulating base and the lower insulating base are different colors.

[0012] Preferably, the bottom left and right sides of the insulating body are respectively provided with horizontally arranged balancing pads, which are located below the bottom of the metal shell.

[0013] Preferably, the front end of the insulating body is provided with a partition block located between the upper tongue plate and the lower tongue plate. The partition block is provided with a U-shaped metal spring piece. The top and bottom of the metal spring piece are respectively provided with first pressing spring pieces. The left and right sides of the top and the left and right sides of the bottom of the metal spring piece are respectively provided with buckles. The left and right sides of the metal shell are respectively provided with buckle holes. The buckles are respectively engaged in the corresponding buckle holes.

[0014] Preferably, the metal spring has an insertion block at its top rear end and / or bottom rear end, and the insulating body has a slot, with the insertion block of the metal spring inserted into the corresponding slot.

[0015] Preferably, the metal casing is provided with second pressing springs at the top, bottom and left and right sides, positioning pins are provided on the left and right sides of the bottom of the metal casing, and a back plate is provided on the back of the metal casing.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model has a simple structure and reasonable design. The upper terminals of the upper terminal group and the lower terminals of the lower terminal group are all designed using SMT. The tail end of each upper terminal of the upper terminal group extends from the bottom rear side of the insulating body and is bent backward at 90 degrees to form a surface-mount upper terminal solder foot. The tail end of each lower terminal of the lower terminal group extends from the bottom rear side of the insulating body and is bent backward at 90 degrees to form a surface-mount lower terminal solder foot. The upper terminal solder feet are located between two adjacent lower terminal solder feet. The upper and lower terminal solder feet are arranged in a single row along the length of the insulating body. This way, the operator only needs to perform one soldering operation, making soldering simpler, greatly improving soldering efficiency, making maintenance more convenient, and effectively reducing production costs.

[0018] 2. The insulating body of this utility model is composed of an upper insulating seat and a lower insulating seat. The upper insulating seat and the lower insulating seat can be set to different colors, so that a two-color insulating body structure can be made. Attached Figure Description

[0019] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the single-row surface-mount dual-layer USB 3.0 connector provided in this embodiment of the present invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of the single-row surface-mount dual-layer USB 3.0 connector provided in this embodiment of the present invention. Figure 2 ;

[0022] Figure 3 This is an exploded view of the connector provided in this embodiment of the present invention with the metal shell removed;

[0023] Figure 4 This is a schematic diagram of the connector structure after the metal shell is removed, according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the upper terminal group provided in an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the lower terminal group provided in an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the metal spring piece provided in this embodiment of the utility model. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] Please refer to Figure 1 , Figure 2 and Figure 3 The present invention provides a single-row surface-mount dual-layer USB 3.0 connector, including a metal shell 1, an insulating body 2, an upper row terminal group 3, a lower row terminal group 4, and a metal spring piece 5, etc. The components of this embodiment will be described in detail below with reference to the accompanying drawings.

[0029] like Figure 1 and Figure 2 As shown, the metal shell 1 is rectangular and covers the outside of the insulating body 2. Positioning pins 13 are provided on the left and right sides of the bottom of the metal shell 1, and the front end of the metal shell 1 has an opening that connects to the inner cavity of the metal shell 1. The back of the metal shell 1 has a shell back plate 14.

[0030] Preferably, the top, bottom and left and right sides of the metal casing 1 may also be provided with second pressing springs 12.

[0031] like Figure 3 and Figure 4 As shown, the insulating body 2 may include an upper insulating seat 21 and a lower insulating seat 22. The lower insulating seat 22 is fixedly connected to the lower end of the upper insulating seat 21. The front end of the insulating body 2 is provided with an upper tongue plate 23 and a lower tongue plate 24 that are horizontally arranged and placed in the inner cavity of the metal shell 1. The upper tongue plate 23 is connected to the front end of the upper insulating seat 21, and the lower tongue plate 24 is connected to the front end of the lower insulating seat 22.

[0032] The insulating body in this embodiment adopts a modular structure. The upper and lower insulating bases can be set to different colors, thus enabling the fabrication of a two-color insulating body structure. Specifically, the insulating body in this embodiment can be manufactured using a two-stage injection molding process.

[0033] like Figure 1 , Figure 3 and Figure 4 As shown, horizontally arranged balancing pads 26 can be provided on the left and right sides of the bottom of the insulating body 2, and the balancing pads 26 are located below the bottom of the metal shell 1. The balancing pads 26 help the connector to be placed stably on the circuit board.

[0034] like Figure 3 and Figure 4 As shown, the front end of the insulating body 2 may also be provided with a partition block 27 located between the upper tongue plate 23 and the lower tongue plate 24. The partition block 27 may be configured as a square.

[0035] like Figure 3 and Figure 4 As shown, the back of the upper insulating seat 21 may also be provided with a longitudinally arranged upper insulating back plate 25, which is placed on the back of the lower insulating seat 22.

[0036] like Figure 4 and Figure 5 As shown, the upper terminals of the upper terminal group 3 may include a first upper terminal 31 and a second upper terminal 32. The second upper terminal 32 is located between two adjacent first upper terminals 31. The head of the first upper terminal 31 may be provided with a square first upper terminal contact portion 311, and the head of the second upper terminal 32 may be provided with a V-shaped second upper terminal elastic contact portion 321. The first upper terminal contact portion 311 is located in front of the second upper terminal elastic contact portion 321.

[0037] In specific manufacturing, the main body of each first upper terminal 31 and second upper terminal 32 of the upper terminal group 3 is embedded in the insulating body 2. The contact portion 311 of the first upper terminal can be exposed outside the upper tongue plate 23 from the bottom front end position of the upper tongue plate 23, and the elastic contact portion 321 of the second upper terminal can extend from the first through hole 231 of the upper tongue plate 23 to the bottom of the upper tongue plate 23. In addition, the tail ends of each first upper terminal 31 and second upper terminal 32 can extend downward from the bottom of the upper insulating back plate 25 (i.e., the bottom rear side of the insulating body 2) and bend backward by 90 degrees, thereby forming a patch-type upper terminal solder foot 33.

[0038] like Figure 4 and Figure 6 As shown, the lower terminals of the lower terminal group 4 may include a first lower terminal 41 and a second lower terminal 42. The second lower terminal 42 is located between two adjacent first lower terminals 41. The head of the first lower terminal 41 is provided with a square first lower terminal contact portion 411, and the head of the second lower terminal 42 is provided with a V-shaped second lower terminal elastic contact portion 421. The first lower terminal contact portion 411 is in front of the second lower terminal elastic contact portion 421.

[0039] In specific manufacturing, the main bodies of the first lower terminal 41 and the second lower terminal 42 of the lower terminal group 4 are embedded in the lower insulating base 22. The contact portion 411 of the first lower terminal can be exposed outside the lower tongue plate 24 from the bottom front end position of the lower tongue plate 24, and the elastic contact portion 421 of the second lower terminal can extend from the second through hole 241 of the lower tongue plate 24 to the bottom of the lower tongue plate 24. In addition, the tail ends of each first lower terminal 41 and the second lower terminal 42 can extend downward from the bottom rear side of the lower insulating base 22 and be bent backward at 90 degrees, thereby forming a surface-mount type lower terminal solder foot 43.

[0040] like Figure 2 and Figure 4 As shown, each upper terminal solder foot 33 of the upper terminal group 3 is located between two adjacent lower terminal solder feet 43. The upper terminal solder feet 33 and the lower terminal solder feet 43 are arranged in a single row along the length of the insulating body 2, that is, all the solder feet of the terminals are arranged in a horizontal row.

[0041] like Figure 3 , Figure 4 and Figure 7 As shown, the metal spring piece 5 can be configured in a U-shape. The metal spring piece 5 is installed on the partition block 27. The top and bottom of the metal spring piece 5 are respectively provided with a first pressing spring piece 51.

[0042] To secure the metal spring clip 5 to the metal housing 1, buckles 52 can be provided on the top left and right sides and the bottom left and right sides of the metal spring clip 5. Correspondingly, buckle holes 11 can be provided on the left and right sides of the metal housing 1. During installation, the buckles 52 of the metal spring clip 5 can be engaged in the corresponding buckle holes 11.

[0043] In addition, the top rear end and bottom rear end of the metal spring piece 5 may be provided with insert blocks 53, and correspondingly, the insulating body 2 may be provided with slots 28, so that the insert blocks 53 of the metal spring piece 5 can be inserted into the corresponding slots 28.

[0044] In summary, all terminals of this utility model adopt an SMT design, and all terminal solder feet are arranged in a single row. This allows operators to perform soldering only once, making soldering simpler, greatly improving soldering efficiency, making maintenance more convenient, and effectively reducing production costs.

[0045] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A single-row surface-mount dual-layer USB 3.0 connector, characterized in that: The device includes a metal casing, an insulating body, an upper terminal group, and a lower terminal group. The metal casing covers the outside of the insulating body. The front end of the metal casing has an opening that connects to the inner cavity of the metal casing. The front end of the insulating body has an upper tongue plate and a lower tongue plate that are horizontally set and placed inside the inner cavity of the metal casing. The main body of each upper terminal of the upper terminal group is embedded in the insulating body, and the head end of each upper terminal protrudes from the bottom of the upper tongue plate. The tail end of each upper terminal extends from the bottom rear side of the insulating body and bends backward at a 90-degree angle, thereby forming a surface-mount upper terminal solder foot. The main body of each lower terminal of the lower terminal group is embedded in the insulating body, and the head end of each lower terminal protrudes from the bottom of the lower tongue plate. The tail end of each lower terminal extends from the bottom rear side of the insulating body and bends backward at a 90-degree angle, thereby forming a surface-mount lower terminal solder foot. The upper terminal solder feet are located between two adjacent lower terminal solder feet, and the upper and lower terminal solder feet are arranged in a single row along the length of the insulating body.

2. The single-row surface-mount dual-layer USB 3.0 connector according to claim 1, characterized in that: The upper terminal of the upper terminal group includes a first upper terminal and a second upper terminal. The second upper terminal is located between two adjacent first upper terminals. The head of the first upper terminal is provided with a square first upper terminal contact portion, and the head of the second upper terminal is provided with a V-shaped second upper terminal elastic contact portion. The first upper terminal contact portion is located in front of the second upper terminal elastic contact portion. The lower terminal of the lower terminal group includes a first lower terminal and a second lower terminal. The second lower terminal is located between two adjacent first lower terminals. The head of the first lower terminal is provided with a square first lower terminal contact portion, and the head of the second lower terminal is provided with a V-shaped second lower terminal elastic contact portion. The first lower terminal contact portion is located in front of the second lower terminal elastic contact portion.

3. A single-row surface-mount dual-layer USB 3.0 connector according to claim 2, characterized in that: The first upper terminal contact portion is exposed outside the upper tongue plate from the bottom front end position of the upper tongue plate, and the second upper terminal elastic contact portion extends from the first through hole of the upper tongue plate to the bottom of the upper tongue plate. The first lower terminal contact portion is exposed outside the lower tongue plate from the bottom front end position, and the second lower terminal elastic contact portion extends from the second through hole of the lower tongue plate to the bottom of the lower tongue plate.

4. A single-row surface-mount dual-layer USB 3.0 connector according to claim 1, characterized in that: The insulating body includes an upper insulating seat and a lower insulating seat. The lower insulating seat is installed at the lower end of the upper insulating seat. The upper tongue plate is connected to the front end of the upper insulating seat, and the lower tongue plate is connected to the front end of the lower insulating seat.

5. A single-row surface-mount dual-layer USB 3.0 connector according to claim 4, characterized in that: The upper insulating base has a longitudinally arranged upper insulating back plate on its back. The upper insulating back plate is placed on the back of the lower insulating base. The upper row of terminal groups is embedded in the upper insulating base, and the tail end of each upper terminal extends from the bottom of the upper insulating back plate. The lower row of terminal groups is embedded in the lower insulating base, and the tail end of each lower terminal extends from the bottom of the lower insulating base.

6. A single-row surface-mount dual-layer USB 3.0 connector according to claim 4, characterized in that: The upper and lower insulating bases are of different colors.

7. A single-row surface-mount dual-layer USB 3.0 connector according to claim 1, characterized in that: The bottom left and right sides of the insulating body are respectively provided with horizontally arranged balancing pads, which are located below the bottom of the metal shell.

8. A single-row surface-mount dual-layer USB 3.0 connector according to claim 1, characterized in that: The front end of the insulating body is provided with a partition block located between the upper tongue plate and the lower tongue plate. The partition block is provided with a U-shaped metal spring piece. The top and bottom of the metal spring piece are respectively provided with a first pressing spring piece. The left and right sides of the top and the left and right sides of the bottom of the metal spring piece are respectively provided with buckles. The left and right sides of the metal shell are respectively provided with buckle holes. The buckles are respectively engaged in the corresponding buckle holes.

9. A single-row surface-mount dual-layer USB 3.0 connector according to claim 8, characterized in that: The metal spring piece has an insertion block at its top rear end and / or bottom rear end, and the insulating body has a slot, into which the insertion block of the metal spring piece is inserted.

10. A single-row surface-mount dual-layer USB 3.0 connector according to claim 1, characterized in that: The metal casing has a second pressing spring on the top, bottom and left and right sides, a positioning pin on the left and right sides of the bottom, and a back plate on the back.

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