WO2015085581A1

WO2015085581A1 - Usb socket and usb device thereof

Info

Publication number: WO2015085581A1
Application number: PCT/CN2013/089398
Authority: WO
Inventors: 朱昱昊
Original assignee: 西门子公司; 朱昱昊
Priority date: 2013-12-13
Filing date: 2013-12-13
Publication date: 2015-06-18

Abstract

A USB socket, comprising a pin structure (10) containing eight pins. The eight pins of the pin structure are divided into a first pin group (A) and a second pin group (B), each pin group comprises four pins, and the two pin groups are symmetrically distributed. The four pins in the first pin group and the four pins in the second pin group are numbered in sequence in the same direction (i.e. A1, A2, A3, A4, B1, B2, B3, B4). The first pin (A1) in the first pin group is electrically connected to the fourth pin (B4) in the second pin group; the second pin (A2) in the first pin group is electrically connected to the third pin (B3) in the second pin group; the third pin (A3) in the first pin group is electrically connected to the second pin (B2) in the second pin group; and the fourth pin (A4) in the first pin group is electrically connected to the first pin (B1) in the second pin group. The USB socket supports the insertion of a common USB plug in the positive and negative directions, that is, the same electrical connection relationship can be ensured whether the common USB plug is inserted when the right side or the reverse side thereof is up.

Description

USB socket and USB device

Technical field

The present invention relates to a USB connector, and more particularly to a USB socket that can be double-sidedly inserted and a USB device thereof.

Background technique

Universal Serial Bus (USB) is becoming more and more popular, and electronic devices supporting USB technology are also increasing. At present, the most commonly used USB connector is a 4-pin connector. When connecting, the USB socket has a requirement for the insertion direction of the USB plug, and usually only supports single-sided insertion, which often causes inconvenience to the user. Many of the USB plugs currently on the market have a flat design, which results in failure of the anti-missing mechanism and reduces usability.

Although there are some USB products that support double-sided plug-in, they are often complicated, costly, and not reliable enough to be connected. Patent document CN201956490U discloses a USB plug and a USB socket that can be double-sidedly inserted, but the USB socket or USB plug actually transmits two USB signals and connects two external data modules or wires; thus the USB socket described in the document It can only support the double-sided plug of the USB plug described in this document (there are a set of USB interfaces on the two contact faces of the plug), but can not support the ordinary USB plug (there is only one side on the two contact faces of the plug) Double-sided plugging of the group USB interface). Summary of the invention

According to an aspect of the present invention, a USB socket that can be double-sidedly inserted includes a pin structure 10 including eight pins, and the eight pins of the pin structure are divided into a first pin group (A) and a second pin. Group (B each stitch set includes 4 stitches, the two stitch sets are symmetrically distributed, 4 of the first stitch set (A) and 4 of the second stitch set (B) In the same direction in order No. (A1, A2, A3, A4; B1, B2, B3, B4), characterized in that the first stitch (Α1) and the second stitch group (B) in the first stitch group (A) The fourth pin (B4) is electrically connected; the second pin (A2) of the first pin group (A) is electrically connected to the third pin (B3) of the second pin group (B); The third stitch (A3) of one stitch group (A) is electrically connected to the second stitch (B2) of the second stitch group (B); the fourth stitch of the first stitch group (A) (A4) ) is electrically connected to the first stitch (B1) of the second stitch group (B).

Say

The USB socket can support double-sided insertion of a common USB plug, regardless of the orientation of the USB plug on the front and back sides of the insertion cassette. In a preferred embodiment, at least one of the eight stitches of the stitch structure has a curved portion that is curved toward the inside and is elastically deformable. Therefore, when the USB plug is inserted into the crucible, the bent portion can be deformed, and thus an elastic force is generated, so that the connection between the USB plug and the USB socket is more secure and reliable. In another preferred embodiment, the eight stitches of the stitch structure each have at least one of the bends. In this way, no matter whether the USB plug is inserted in the front side or the back side is inserted into the USB socket, the contact between them is more stable and reliable, and is particularly suitable for scenes with harsh application environments such as industrial applications, such as continuous vibration. In another preferred embodiment, the curved portion assumes the shape of the English letter C. In this way, not only the stable and reliable electrical contact between the USB plug and the USB socket can be ensured, but also the smoother plugging of the USB plug and the less disturbance to the USB socket can be ensured. In another preferred embodiment, the first stitch (A1) of the first stitch group (A) and the fourth stitch (B4) of the second stitch group (B) pass the first metal rod (1010) Is electrically connected to the second metal rod (020); the third stitch (A2) of the first stitch group (A) and the third stitch (B3) of the second stitch group (B) pass the third Metal rod (1012) and fourth metal rod (1022) Electrical connection; the third pin (A3) of the first pin group (A) and the second pin (B2) of the second pin group (B) pass the fifth metal rod (1014) and the sixth metal The rod (1024) is electrically connected; the fourth stitch (A4) of the first stitch group (A) and the first stitch (B1) of the second stitch group (B) pass the seventh metal rod (1016) It is electrically connected to the eighth metal rod (1026). Such a connection allows the entire stitch structure 10 to be processed, fabricated, assembled, etc. as a unit, while also facilitating the assembly, manufacture, etc. of the USB socket.

Say

In another preferred embodiment, the metal rods (1010, 1012, 1014, 1016, 1020, 1022, 1024, 1026) are elastically deformable. Thus, when the USB book plug is inserted into the USB socket, the metal rod can be elastically deformed, thereby ensuring good electrical contact and better insertion and removal of the hand. In another preferred embodiment, the USB socket further includes a shield case having two side walls, each of the side walls having an inward protrusion, preferably the protrusion is a A kind of elastic hook structure. The protrusion or the elastic hook structure can cooperate with the USB plug, so that the cooperation between the USB socket and the USB plug is tighter and firmer. According to another aspect of the present invention, there is provided a USB device comprising the USB socket and the USB plug as described above, wherein each side of the USB plug has a recess, respectively, when the USB plug is inserted In the case of the USB plug, the recess matches the projection on the USB socket on both side walls of the shield case. This USB device has a stable and reliable connection, good ease of use, and a better plug and feel. The above description is only an overview of the technical solutions of the present invention, and the above-described and other objects, features and advantages of the present invention can be more clearly understood. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a schematic diagram of a USB socket and a USB plug according to an embodiment of the present invention; FIG. 2a is a schematic diagram of a pin structure of a USB socket according to an embodiment of the present invention; FIG. 2b is a diagram according to the present invention. FIG. 3 is a schematic diagram of disassembling a pin structure of a USB socket according to an embodiment of the present invention; FIG. 4 is a view showing a USB plug inserted into a USB socket according to an embodiment of the present invention; Section view, say

Wherein, the reference numerals include:

Pin Structure 20 Supports Book 30 Shielding Case USB Plug 50 USB Socket A First Pin Set Second Pin Set A1- A4 Pin B1- B4 Pin

1010 connecting rod A1 metal rod 1012 connecting pin A2 metal rod 1014 connecting pin A3 metal rod 1016 connecting pin A4 metal rod 1020 connecting pin B4 metal rod 1022 connecting pin B3 metal rod 1024 connecting pin B2 metal rod 1026 The metal rod 3010 connecting the stitch B1 is convex 4010 on the side wall of the shielding shell. The recess on the USB plug C USB plug USB signal interface C1 - USB plug USB signal pin 1 C2 - USB plug USB signal pin 2 C3 - USB plug USB signal Pin 3 C4 - USB plug USB signal pin 4

DETAILED DESCRIPTION OF THE EMBODIMENTS In order to make the technical problems, technical solutions and beneficial effects of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. 1 shows a USB receptacle 50 and a USB plug 40 in accordance with an embodiment of the present invention, wherein the USB receptacle 50 includes a pin structure 10, a support member 20. Preferably, the USB socket 50 further includes Shielding shell 30. Wherein, the USB plug 40 faces up, as shown in the figure, a 4-pin USB signal interface is disposed on the front side, and a USB signal interface is not disposed on the reverse side of the USB plug 40. Figure 2a shows a schematic view of a stitch structure 10 in accordance with one embodiment of the present invention. The stitch structure 10 includes two sets of stitches, a first stitch set A and a second stitch set B, each of which includes 4 pins. The first stitch group A and the second stitch group B are symmetrically distributed in two rows. As shown in FIG. 2a, in the same direction, for example, from left to right as shown in the figure, the first stitch group A is said to be 4

The four stitches of the second stitch and the second stitch group B are sequentially numbered, that is, the first stitch of the first stitch group A, that is, the leftmost one of the stitches in the figure, which is labeled as book A1, and then from left to right. : the second stitch of the first stitch set A is labeled A2, the third stitch of the first stitch set A is labeled A3, the fourth stitch of the first stitch set A is labeled A4, and the first stitch of the second stitch set B. , that is, the leftmost pin in the figure, marked as B1, and then from left to right: the second pin of the second pin group B is marked B2, and the third pin of the second pin group B is marked B3, The fourth stitch of the two-pin group B is labeled B4. As can be seen from FIG. 2a, in the vertical direction, the first stitch A1 of the first stitch group A and the first stitch B1 of the second stitch group B correspond vertically, and the second stitch A2 of the first stitch group A and the first stitch The second stitch B2 of the second stitch group B corresponds vertically. The third stitch A3 of the first stitch group A corresponds to the third stitch B3 of the second stitch group B, and the fourth stitch A4 and the second stitch of the first stitch group A. The fourth stitch B4 of the group B corresponds up and down; and in the horizontal direction, the first stitch A1 of the first stitch group A is farthest from the fourth stitch B4 of the second stitch group B. 2b is a schematic diagram of a USB signal interface of a USB plug in accordance with one embodiment of the present invention. As shown in FIG. 2b, in the same direction, for example, from left to right in the figure, the four signal pins of the USB signal interface C of the USB plug are sequentially numbered, that is, the first signal pin, that is, the most A signal pin on the left, labeled C1, then from left to right: the second signal pin is labeled C2, The three signal pins are labeled C3 and the fourth signal pin is labeled C4. FIG. 3 illustrates a disassembled schematic view of a pin structure of a USB receptacle in accordance with one embodiment of the present invention. 2a, 2b and 3, in order to enable the USB plug 40 to be inserted into the USB socket 50 无论 either front side or back side, the USB socket 50 can achieve an equivalent electrical connection with the USB plug 40, 4 of the first pin group A The four pins of the second pin group B are cross-connected, that is, the first pin A1 of the first pin group A of the pin structure 10 is electrically connected to the fourth pin B4 of the second pin group B;

The second stitch A2 of the first stitch group A is electrically connected to the third stitch B3 of the second stitch group B; the third stitch A3 of the first stitch group A is electrically connected to the second stitch B2 of the second stitch group B; The fourth stitch A4 of one stitch group A is electrically connected to the first stitch B1 of the second stitch group B. Such an electrical connection ensures that the electrical connection between them is equivalent regardless of whether the front or back of the USB plug 40 is inserted into the pin structure 10 of the USB receptacle 50. Specifically, in conjunction with FIG. 1, when the USB plug 40 is inserted into the USB socket 50, the four signal pins C1, C2, C3, and C4 of the USB signal interface C of the USB plug 40 are respectively associated with the first pin group A of the pin structure 10. The four pins A1, A2, A3, and A4 are connected, that is, C1 is connected to A1, C2 is connected to A2, C3 is connected to A3, and C4 is connected to A4. When the USB plug 40 is inserted into the USB socket 50 on the reverse side, the four signal pins C1, C2, C3, and C4 of the USB signal interface C of the USB plug 40 and the four pins B4 and B3 of the second pin group B of the pin structure 10, respectively. B2 and B1 are connected, that is, C1 is connected to B4, C2 is connected to B3, C3 is connected to B2, and C4 is connected to B1. Since the pins A1, A2, A3, and A4 are electrically connected to each other with the pins B4, B3, B2, and B1, respectively, the electrical connection between the pins and the pin structure 10 is equivalent regardless of the manner in which the USB plug is inserted. . Because of this, the USB socket 50 can support the double-sided plug of the USB plug 40, and the circuit module for processing the USB signal connected to the USB socket 50 is not required as compared with the ordinary USB socket which only supports single-sided plugging. Any modification, as long as the ordinary USB socket supporting only one-sided plug is simply replaced with the USB socket 50 according to an embodiment of the present invention, Double-sided docking is supported. According to a USB socket 50 of a preferred embodiment of the present invention, as shown in FIG. 3, at least one of the stitch structures 10 has a bent portion which is bent toward the inner side and is elastically deformable, that is, the stitch is oriented toward The other stitch corresponding to the upper and lower sides in the vertical direction is bent, that is, the stitch is bent in the direction of the other stitch group of the stitch group in which it is placed. When the USB plug 40 is inserted, the above-mentioned bent portion is squeezed to be elastically deformed, and thus an elastic force is generated to the USB plug 40, thereby saying

The USB plug 40 is made to be in closer contact with the USB socket 50 more securely. At the same time, because of the elastic deformation, the user has a better insertion and removal feeling when inserting the USB plug 40. In accordance with another preferred embodiment of the present invention, a USB receptacle 50, as shown in Figure 3, has eight pins of the pin structure 10 having at least one of said bends. In this way, no matter whether the USB plug 40 is inserted in the front side or the back side, the contact with the USB socket 50 is more stable and reliable, and is particularly suitable for various environmentally harsh application scenarios such as industrial applications, such as continuous vibration. According to another preferred embodiment of the USB socket 50 of the present invention, as shown in FIG. 3, the eight stitches of the stitch structure 10 have at least one of the bent portions, and the bent portions thereof have the shape of the English letter C. In this way, not only the stable and reliable electrical contact between the USB plug 40 and the USB socket 50 can be ensured, but also the smoothness of plugging the USB plug 40 can be ensured, and the disturbance caused to the USB socket by each plugging and unplugging is smaller. In accordance with another preferred embodiment of the USB receptacle 50 of the present invention, in conjunction with FIG. 3, the electrical connection of the two stitches between the first stitch set A and the second stitch set B of the stitch structure 10 is accomplished by a metal rod. As shown in FIG. 3, the first stitch A1 of the first stitch group A and the fourth stitch B4 of the second stitch group B are electrically connected by the first metal rod 1010 and the second metal rod 1020; the first stitch group A The second stitch A2 of the second stitch A2 and the second stitch group B3 are electrically connected by the third metal rod 1012 and the fourth metal rod 1022; the third stitch A3 and the second stitch group B of the first stitch group A are The second stitch B2 passes The fifth metal rod 1014 and the sixth metal rod 1024 are electrically connected; the fourth stitch A4 of the first stitch group A and the first stitch B1 of the second stitch group B are electrically connected by the seventh metal rod 1016 and the eighth metal rod 1026. connection. Such a connection allows the entire stitch structure 10 to be processed and manufactured as a whole, and also facilitates assembly, manufacture, and the like of the USB socket. Wherein, the first and second metal rods constitute a first metal rod pair, the third and fourth metal rods constitute a second metal rod pair, and the fifth and sixth metal rods form a third metal rod pair, the seventh and eighth metals The rods constitute a fourth metal rod pair, and the four metal rod pairs are insulated from each other.

Say

Preferably, some or all of the above metal rods are elastically deformable, so that when the USB plug 40 is inserted into the USB socket 50, the metal rod can be flexibly deformed, thereby ensuring good electrical contact and better insertion and removal of the hand. Preferably, the connecting portion between the first metal rod 1010 and the stitch A1 is elastically deformable, and the connecting portion between the third metal rod 1012 and the stitch A2 is elastically deformable, and the connecting portion between the fifth metal rod 1014 and the stitch A3 is elastically deformed. It is elastically deformable, and the connecting portion between the seventh metal rod 1016 and the stitch A4 can be elastically deformed. Preferably, the connecting portion between the second metal rod 1020 and the stitch B4 is elastically deformable, and the connecting portion between the fourth metal rod 1022 and the stitch B3 is elastically deformable, and the connecting portion between the sixth metal rod 1024 and the stitch B2 is elastically deformed. It is elastically deformable, and the connecting portion between the eighth metal rod 1026 and the stitch B1 can be elastically deformed. More preferably, the first metal rod 1010 and the stitch A1 are in the same plane and are perpendicular to each other; the third metal rod 1012 and the stitch A2 are in the same plane and perpendicular to each other; the fifth metal rod 1014 and the stitch A3 They are in the same plane and are perpendicular to each other; the seventh metal rod 1016 and the stitch A4 are in the same plane and are perpendicular to each other. The second metal rod 1020 and the stitch B4 are in the same plane and perpendicular to each other; the fourth metal rod 1022 and the stitch B3 are in the same plane and perpendicular to each other; the sixth metal rod 1024 is in the same position as the stitch B2 In the plane, and perpendicular to each other; the eighth metal rod 1026 and the stitch B1 are in the same plane and perpendicular to each other. In this case, the elastic deformation of the pins can provide better elasticity, which can better ensure the between the USB socket and the USB plug. The connection is firm and reliable, and the hand feels good when plugged and unplugged. According to another preferred embodiment of the USB socket 50 of the present invention, as shown in FIG. 4, the USB socket 50 includes a shield case 30, and the shield case 30 has two side walls each having an inward convex portion From 3010. Preferably, the protrusion 3010 is a resilient hook structure. Further, as shown in FIG. 4, the USB plug 40 has a recess 4010 on each side thereof, and the recess 4010 can cooperate with the protrusion 3010 when the USB plug 40 is inserted into the USB socket 50. This will make it even more advanced.

The step ensures a stable and reliable connection between the USB plug 40 and the USB socket 50.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and scope of the present invention should be included in the present invention. Within the scope of protection.

Claims

claims

1. A USB socket, including a pin structure (10) containing 8 pins. The 8 pins of the pin structure (10) are divided into a first pin group (A) and a second pin group (B). Each pin The group includes 4 pins, and the two pin groups are symmetrically distributed. The 4 pins in the first pin group (A) and the 4 pins in the second pin group (B) are numbered sequentially in the same direction ( A1, A2, A3, A4; B1, B2, B3, B4), which is characterized by:

The 1st pin (A1) in the first pin group (A) is electrically connected to the 4th pin (B4) in the second pin group (B); the 2nd pin (A1) in the first pin group (A) The pin (A2) is electrically connected to the third pin (B3) in the second pin group (B); the third pin (A3) in the first pin group (A) is electrically connected to the second pin group (B). ) in the second pin (B2) is electrically connected; the fourth pin (A4) in the first pin group (A) is electrically connected to the first pin (B1) in the second pin group (B).

2. The USB socket according to claim 1, wherein at least one of the eight pins of the pin structure has a bending portion, and the bending portion is bent inward and can be elastically deformed.

3. The USB socket according to claim 2, wherein each of the eight pins of the pin structure has at least one bending portion.

4. The USB socket according to claim 2, wherein the bending portion is in the shape of an English letter C.

5. The USB socket according to claim 1, wherein the first pin (A1) in the first pin group (A) and the fourth pin (B4) in the second pin group (B) ) are electrically connected through the first metal rod (1010) and the second metal rod (1020); the second pin (A2) in the first pin group (A) and the second pin in the second pin group (B) 3 pins (B3) are electrically connected through the third metal rod (1012) and the fourth metal rod (1022); the 3rd pin (A3) in the first pin group (A) and the second pin group (B ) in the second pin (B2) is electrically connected through the fifth metal rod (1014) and the sixth metal rod (1024); the fourth pin (A4) in the first pin group (A) and the second Claims

The first pin (B1) in the pin group (B) is electrically connected through the seventh metal rod (1016) and the eighth metal rod (1026).

6. The USB socket according to claim 5, characterized in that the metal rod (1010, 1012, 1014, 1016, 1020, 1022, 1024, 1026) can be elastically deformed.

7. The USB socket according to any one of claims 1 to 6, further comprising a shielding shell (30), the shielding shell (30) having two side walls, each with a an inward bulge (3010 >>

8. The USB socket according to claim 7, wherein the protrusion is an elastic hook structure.

9. A USB device, comprising a USB socket and a USB plug (40) according to claim 7 or 8, characterized in that the USB plug (40) has a recess (4010) on both sides respectively. When the USB plug (40) is inserted into the USB socket, the recess 4010) of the USB plug (40) and the protrusions (3010) on the two side walls of the shielding shell (30) on the USB socket match.