CN105161938A - Plugs and associated sockets - Google Patents

Abstract

The invention discloses a plug and a socket matched with the same. The plug comprises at least two data interfaces with the same specification and at least two power interfaces with the same specification, wherein each data interface comprises a hollow first hollow part and a first solid part connected with the tail end of the corresponding first hollow part, each power interface comprises a hollow second hollow part and a second solid part connected with the tail end of the corresponding second hollow part, each first hollow part is used for accommodating a data connector corresponding to the shape of the inner wall of the corresponding first hollow part, each second hollow part is used for accommodating a power connector corresponding to the shape of the inner wall of the corresponding second hollow part, the cross sectional area of the inner wall of the corresponding second hollow part is larger than that of the inner wall of the corresponding first hollow part, and the cross sectional area of the corresponding second solid part is larger than that of the corresponding first solid part. Through the mode, the high-current charging device can be suitable for high current and can accelerate the charging speed.

Description

Plugs and associated sockets

technical field

The invention relates to the field of electronic technology, in particular to a plug and a socket matched therewith.

Background technique

The existing universal serial bus (Universal Serial Bus, USB) plug has the same size as the data interface and the power interface, limited by the USB standard and its own size, the charging current that the power terminal can support is relatively small, and the maximum charging current will not Greater than 2A.

Existing USB plugs cannot be used in occasions with a current level of 10-15A or greater, otherwise the working characteristics will be weakened, the service life will be reduced, and burning may occur in severe cases.

Contents of the invention

The embodiment of the present invention provides a plug and a matching socket, which can be applied to a large current and can accelerate the charging speed.

The present invention provides a plug, comprising at least two data interfaces with the same specifications and at least two power interfaces with the same specifications, the data interfaces include a hollow first hollow part and a first solid part connected to the end of the first hollow part, The power interface includes a hollow second hollow part and a second solid part connected to the end of the second hollow part, the first hollow part is used to accommodate a data connector corresponding to the shape of the inner wall of the first hollow part, and the second hollow part is used for Accommodate the power connector corresponding to the shape of the inner wall of the second hollow part, the cross-sectional area of the inner wall of the second hollow part is larger than the cross-sectional area of the inner wall of the first hollow part, and the cross-sectional area of the second solid part is larger than that of the first solid part The cross-sectional area is large.

Wherein, the cross-section of the inner wall of the second hollow part and the cross-section of the second solid part are circular with a diameter of 1mm-2mm, and at least two power interfaces with the same specification are used to transmit a DC current of 20-50A.

Wherein, the at least two data interfaces with the same specification include the first data interface and the second data interface, and the at least two power interfaces with the same specification include the first power interface and the second power interface.

Wherein, the first data interface, the second data interface, the first power interface and the second power interface are symmetrically arranged in the center, and the plug also includes an anti-reverse insertion component, which is used to prevent reverse insertion of the plug.

Wherein, the first data interface, the second data interface, the first power interface and the second power interface are arranged non-centrosymmetrically.

Among them, at least two data interfaces with the same specifications include a first data interface, a second data interface, a third data interface, and a fourth data interface, and at least two power interfaces with the same specifications include a first power interface, a second power interface, The third power interface and the fourth power interface.

Among them, the first data interface, the second data interface, the third data interface and the fourth data interface are arranged in a square or a rectangle, and the first power interface, the second power interface and the third power interface and the fourth power interface are separated in a square or a rectangle. The two sides of the rectangle are arranged symmetrically.

Among them, the first data interface, the second data interface, the third data interface, and the fourth data interface are arranged in a straight line with the same interval, and the first power interface, the second power interface, the third power interface, and the fourth power interface are separated in two straight lines. sideways and symmetrically arranged.

Wherein, the plug also includes a shell and an insulator, at least two data interfaces with the same specification, at least two power interfaces with the same specification are arranged in the casing, and the insulator is arranged in the casing for fixing the data interface and the power interface, the first hollow The top of the first part and the top of the second hollow part are exposed from the shell.

The present invention also provides a socket matched with the above-mentioned plug, and the socket is provided with a data connector and a power connector.

Through the above scheme, the beneficial effect of the present invention is: the present invention accommodates the data joint corresponding to the inner wall shape of the first hollow portion through the hollow first hollow portion of the data interface, and the hollow second hollow portion of the power interface is used to accommodate The power connector corresponding to the shape of the inner wall of the second hollow part, the cross-sectional area of the inner wall of the second hollow part is larger than the cross-sectional area of the inner wall of the first hollow part, and the cross-sectional area of the second solid part is larger than the cross-sectional area of the first solid part. The cross-sectional area is large, which can be applied to high current and accelerate the charging speed.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort. in:

Fig. 1 is the structural representation of the plug of the first embodiment of the present invention;

Fig. 2 is an exploded schematic diagram of the plug in Fig. 1;

Fig. 3 is a schematic diagram of the size of the plug in Fig. 1;

Fig. 4 is a schematic structural view of a plug according to a second embodiment of the present invention;

5 is a schematic structural view of a plug according to a third embodiment of the present invention;

6 is a schematic structural view of a plug according to a fourth embodiment of the present invention;

Fig. 7 is a schematic structural diagram of a socket according to an embodiment of the present invention;

Fig. 8 is a schematic diagram of the size of the socket in Fig. 7;

FIG. 9 is a schematic diagram of the application of the socket in FIG. 7 .

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figs. 1-2, Fig. 1 is a schematic structural diagram of a plug according to a first embodiment of the present invention. As shown in FIG. 1 , the plug 10 includes at least two data interfaces 11 with the same specifications, and at least two power interfaces 12 with the same specifications. The data interface 11 includes a first hollow portion 110 and a first solid portion 111 connected to an end of the first hollow portion 110 . The power interface 12 includes a hollow second hollow portion 120 and a second solid portion 121 connected to an end of the second hollow portion 120 . The first hollow portion 110 is used to accommodate data connectors corresponding to the shape of the inner wall of the first hollow portion 110 . The second hollow portion 120 is used for accommodating a power connector corresponding to the shape of the inner wall of the second hollow portion 120 . The cross-sectional area of the inner wall of the second hollow portion 120 is larger than the cross-sectional area of the inner wall of the first hollow portion 110 . The cross-sectional area of the second solid portion 121 is larger than that of the first solid portion 111 . The plug 10 also includes a housing 13 and an insulator 14 . The cross-sectional shape of the plug 10 can be freely set as required. Preferably, the cross-section of the plug 10 in FIG. 1 is a flat structure with arc-shaped sides. At least two data interfaces 11 with the same specifications and at least two power interfaces 12 with the same specifications are arranged in the casing 13, and an insulator 14 is arranged in the casing 13 for fixing the data interfaces 11 and the power interfaces 12, the first hollow part 110 The top end of the second hollow part 120 and the top end of the second hollow part 120 are exposed from the shell. The cross section of the inner wall of the first hollow part 110 and the inner wall of the second hollow part 120 is any one of a circle, a square, a triangle, a rectangle, and an ellipse.

In the embodiment of the present invention, referring to Fig. 1-2, at least two data interfaces with the same specifications may include a first data interface 113, a second data interface 114, a third data interface 115 and a fourth data interface 116, at least two The power ports 12 with the same specifications include a first power port 123 , a second power port 124 , a third power port 125 and a fourth power port 126 . Wherein, the first data interface 113, the second data interface 114, the third data interface 115 and the fourth data interface 116 can be arranged in a square or a rectangle, correspondingly, the first power interface 123, the second power interface 124 and the third power supply The interface 125 and the fourth power interface 126 are located on two sides of a square or a rectangle and arranged symmetrically.

The size of the data interface 11 and the power interface 12 in the embodiment of the present invention can be set according to actual needs, and is about 1-2mm. The larger the diameter of the power interface 12, the larger its cross-section, so that the data interface 11 and the power interface 12 can have a large current capacity, preferably a large current capacity of 20-30A, which is specific to the first data interface 11 and the power interface 12 can have a large current capacity of 10-15A. For example, as shown in FIG. 3 , the first data interface 113 , the second data interface 114 , the third data interface 115 and the fourth data interface 116 may be arranged in a square. Correspondingly, the first power interface 123 , the second power interface 124 , the third power interface 125 , and the fourth power interface 126 are separated on two sides of the square and arranged symmetrically.

Among them, the polarities of the diagonal data interfaces are the same (such as d+ in the USB data signal, or d- in the USB data signal), and the polarities of the two adjacent data interfaces are opposite (such as the same It is d- in the USB data signal, or d+ in the same USB data signal). The polarities of the two power interfaces on the inside are the same (for example, they can be V+ or V- in the USB power signal), and the polarities of the two power interfaces on the outside are also the same (for example, they can be the same as V- in the USB power signal). V- or V+), the polarity of the two power connectors on the same side is opposite.

Specifically, referring to FIG. 3 , the polarity of the first data interface 113 is the same as that of the third data interface 115, both being positive or negative, while the polarity of the second data interface 114 is the same as that of the fourth data interface 116. The polarities are the same as those of the first data interface 113 and the third data interface 115 . The polarity of the first power interface 123 is the same as that of the fourth power interface 126 , both being positive or negative. The polarity of the second power interface 124 is the same as that of the third power interface 125, and opposite to that of the first power interface 123 and the fourth power interface 126, so that when the plug 10 is inserted backwards, it can also be charged normally and transmit data.

In a specific embodiment of the present invention, the diameter of the data interface 11 is preferably 0.5mm, and the diameter of the power interface 12 is preferably 1.3mm. The center distance between two adjacent data interfaces is preferably 1.4 mm, the center distance between two inner power interfaces is preferably 5.8 mm, and the center distance between two outer power interfaces is preferably 11 mm. The inside width of the housing of the plug 10 is preferably 15.2 mm, and the height is preferably 3.2 mm. The inside height of the plug 10 is preferably 3.2 mm, and the outside height is preferably 4.84 mm.

The plug 10 of the embodiment of the present invention can be used in USB interfaces, portable mobile devices, tablet computers, computers, notebooks, bluetooth earphones, automobiles and other electronic devices.

The power interface and data interface can be made of copper conductive material, while the insulator can be made of hard high temperature resistant plastic material, which can be applied to the Restriction of Hazardous Substances (Rohs) standard in electrical and electronic equipment, and the resistance Flammability rating UL94-V0.

Due to the large size of the power interface, the connector 10 can be applied to a large current, thereby enabling faster charging speed and being able to be used for different devices.

As shown in FIG. 4, in an optional embodiment of the present invention, the first data interface 213, the second data interface 214, the third data interface 215, and the fourth data interface 216 can also be arranged in a straight line with the same interval. The first power interface 223 , the second power interface 224 , the third power interface 225 , and the fourth power interface 226 are located on two sides of the straight line and arranged symmetrically. The cross section of the plug in this embodiment is an oval flat structure.

In the embodiment shown in FIG. 4 , the polarities of the first data interface 213 and the fourth data interface 216 on the outer side are the same, both positive or negative. The polarities of the second data interface 214 and the third data interface 215 located inside are the same, and opposite to those of the first data interface 213 and the fourth data interface 216 . Similarly, the polarities of the first power supply interface 223 and the fourth power supply interface 226 located outside are the same, both being positive or negative. The polarities of the second power port 224 and the third power port 225 located inside are the same, and opposite to those of the first power port 223 and the fourth power port 226 . In this way, there is no reverse insertion, that is, when the plug 10 is inserted backward, charging and data transmission can also be performed normally.

As shown in FIG. 5 , the data interface is specifically a first data interface and a second data interface, and the power interface is specifically a first power interface and a second power interface. Wherein, the first data interface 313 , the second data interface 314 , the first power interface 323 and the second power interface 324 may be symmetrically arranged in a center. The polarities of the first data interface 313 and the second data interface 314 are opposite, and the polarities of the first power interface 323 and the second power interface 324 are also opposite.

Since the polarity distribution of the data interface and the power interface is not symmetrically arranged, it cannot be reversed, otherwise it will be burned. In order to prevent reverse insertion, the plug may also include an anti-reverse insertion component 33, which is used to prevent reverse insertion of the plug. The anti-reverse insertion component 33 can be configured as a concave block or a convex block, and the shape is not limited, so as to be used in conjunction with the corresponding socket.

Alternatively, as shown in FIG. 6 , the first data interface 413 , the second data interface 414 , the first power interface 423 and the second power interface 424 may also be arranged non-centrosymmetrically. The polarities of the first data interface 413 and the second data interface 414 are opposite, and the polarities of the first power interface 423 and the second power interface 424 are also opposite.

Since the polarities of the data interface and the power interface are not arranged symmetrically, they cannot be reversed, otherwise the performance and service life of the plug will be affected. In order to prevent reverse insertion, the plug may also include an anti-reverse insertion component 43, which is used to prevent reverse insertion of the plug.

Correspondingly, the shape of the socket used in conjunction with the plug in each of the above embodiments is similar to the shape of the plug used in conjunction with it. Taking FIG. 7 as an example, FIG. 7 is a schematic structural diagram of a socket according to an embodiment of the present invention. The socket 50 is used in conjunction with the plug 10 shown in FIG. 1 and is provided with a data connector and a power connector. The data connectors include a first data connector 501 , a second data connector 502 , a third data connector 503 and a fourth data connector 504 . The power connectors include a first power connector 511 , a second power connector 512 , a third power connector 513 , and a fourth power connector 514 . The cross-sectional area of the inner wall of the data connector is larger than the cross-sectional area of the inner wall of the power connector. The cross section of the socket 50 is a flat structure with arc-shaped sides.

The first data connector 501, the second data connector 502, the third data connector 503, and the fourth data connector 504 can be arranged in a square or a rectangle. Correspondingly, the first power connector 511, the second power connector 512, and the third power connector 513 , and the fourth power connector 514 are located on two sides of the square or rectangle and arranged symmetrically. Among them, the polarities of the diagonal data connectors are the same (such as d+ in the USB data signal, or d- in the USB data signal), and the polarities of the two adjacent data connectors are opposite (such as the same It is d- in the USB data signal, or d+ in the same USB data signal). The polarities of the two power connectors on the inside are the same (for example, they can be V+ or V- in the USB power signal), and the polarities of the two power connectors on the outside are also the same (for example, they can be the same as the V- in the USB power signal). V- or V+), the polarity of the two power connectors on the same side is opposite.

Taking FIG. 7 as an example, the first data connector 501 , the second data connector 502 , the third data connector 503 and the fourth data connector 504 are arranged in a square. Correspondingly, the first power connector 511 , the second power connector 512 , the third power connector 513 , and the fourth power connector 514 are located on two sides of the square and arranged symmetrically. The polarity of the first data connector 501 is the same as that of the third data connector 503, both being positive or negative, while the polarity of the second data connector 502 is the same as that of the fourth data connector 502, and is the same as that of the first data connector. The polarity of the connector 501 and the third data connector 503 are opposite. The polarity of the first power connector 511 is the same as that of the fourth power connector 514 , both being positive or negative. The polarity of the second power connector 512 is the same as that of the third power connector 513, and opposite to that of the first power connector 511 and the fourth power connector 514, so that when the socket 50 is inserted backwards, it can also be charged normally and transmit data.

In a specific embodiment of the present invention, the size of the socket 50 is shown in FIG. 8 , the diameter of the data connector is 0.5 mm, and the diameter of the power connector is 1.3 mm. The center distance between two adjacent data connectors is 1.4 mm, the center distance between two inner power connectors is 5.8 mm, and the center distance between two outer power connectors is 11 mm. The inside width of the housing of the socket 50 is 15.3 mm, and the outside width is 16.1 mm. The inside height of the socket 50 is 3.3 mm, and the outside height is 4.1 mm. The total length of the socket 50 is 2.5 mm, and the length of the data connector and the power connector extending from the socket is 2.5 mm.

The socket 50 of the embodiment of the present invention can be used for microUSB interface, portable mobile device, tablet computer, computer, notebook, bluetooth earphone, automobile and other electronic devices.

The power connector and data connector can be made of copper conductive material, while the insulator can be made of hard high-temperature-resistant plastic material, which can be applied to Rohs standard and UL94-V0, and is suitable for SMT process. Due to the large size of the data connector and the power connector, the connector 10 can be applied to a large current, thereby enabling a faster charging speed and being able to be used for different devices. FIG. 9 is a schematic diagram of an example of the socket 50 being applied to a mobile device.

To sum up, the hollow first hollow part of the data interface accommodates the data connector corresponding to the inner wall shape of the first hollow part, and the hollow second hollow part of the power interface is used to accommodate the data connector corresponding to the inner wall shape of the second hollow part. For the power connector, the cross-sectional area of the inner wall of the second hollow part is larger than the cross-sectional area of the inner wall of the first hollow part, and the cross-sectional area of the second solid part is larger than that of the first solid part, which can be applied to large Compared with the plug with the same size as the data interface and the power interface, the charging speed can be accelerated.

The above is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technologies fields, all of which are equally included in the scope of patent protection of the present invention.

Claims (10)

1. A plug, characterized in that it comprises at least two data interfaces with the same specification and at least two power interfaces with the same specification, the data interface includes a hollow first hollow part and an end connected to the first hollow part A connected first solid part, the power interface includes a hollow second hollow part and a second solid part connected to the end of the second hollow part, and the first hollow part is used to accommodate the connection with the first hollow part. The data connector corresponding to the shape of the inner wall of the second hollow part, the second hollow part is used to accommodate the power connector corresponding to the shape of the inner wall of the second hollow part, and the cross-sectional area of the inner wall of the second hollow part is larger than that of the first hollow part The cross-sectional area of the inner wall is large, and the cross-sectional area of the second solid portion is larger than that of the first solid portion. 2. The socket according to claim 1, characterized in that, the cross-section of the inner wall of the second hollow part and the cross-section of the second solid part are circular with a diameter of 1mm-2mm, and the at least Two power interfaces with the same specifications are used to transmit 20-50A DC current. 3. The plug according to claim 1, wherein the at least two data interfaces with the same specification include a first data interface and a second data interface, and the at least two power interfaces with the same specification include a first power supply interface interface and the second power interface. 4. The plug according to claim 3, wherein the first data interface, the second data interface, the first power interface and the second power interface are symmetrically arranged in a center, and the plug An anti-reverse insertion component is also included, and the anti-reverse insertion component is used to prevent the plug from being inserted backwards. 5 . The plug according to claim 3 , wherein the first data interface, the second data interface, the first power interface and the second power interface are arranged non-centrosymmetrically. 6. The plug according to claim 1, wherein the at least two data interfaces with the same specifications include a first data interface, a second data interface, a third data interface and a fourth data interface, and the at least two The power interfaces with the same specifications include a first power interface, a second power interface, a third power interface and a fourth power interface. 7. The plug according to claim 6, wherein the first data interface, the second data interface, the third data interface and the fourth data interface are arranged in a square or a rectangle, and the The first power interface, the second power interface, the third power interface, and the fourth power interface are separated and symmetrically arranged on two sides of the square or rectangle. 8. The plug according to claim 7, wherein the first data interface, the second data interface, the third data interface and the fourth data interface are arranged in a straight line with the same interval, and the The first power interface, the second power interface, the third power interface, and the fourth power interface are separated and symmetrically arranged on two sides of the straight line. 9. The plug according to claim 1, characterized in that, the plug further comprises a housing and an insulator, and the at least two data interfaces with the same specifications and the at least two power interfaces with the same specifications are arranged on the housing and the insulator is arranged in the housing for fixing the data interface and the power interface, and the top end of the first hollow part and the top end of the second hollow part are exposed from the housing. 10. A socket for mating with the plug according to any one of claims 1 to 9, characterized in that, the socket is provided with the data connector and the power connector.