CN108418038B

CN108418038B - USB connection structure and electronic equipment with same

Info

Publication number: CN108418038B
Application number: CN201810146121.5A
Authority: CN
Inventors: 朱志辉; 王晓; 张�林
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2018-02-12
Filing date: 2018-02-12
Publication date: 2020-03-17
Anticipated expiration: 2038-02-12
Also published as: CN108418038A

Abstract

The utility model relates to a USB connection structure and have this USB connection structure's electronic equipment, including tongue piece, fixed mounting's inner shell and shell, the shell is connected to internal plant, and the inner shell forms the space that supplies external equipment cartridge with the tongue piece, and the inner shell is formed through stamping process and has the inner shell outside section that is close to external plant and the inner shell inside section that is close to internal plant, and the size of the outer section of inner shell along the thickness direction and the width direction of tongue piece is greater than the inner shell inside section. The inner end of the inner case occupies a smaller dimension in the thickness direction and the width direction of the tongue than the outer end, and space occupied in the internal device can be saved when the USB connection structure is mounted to the internal device, and elements of the internal device can be more conveniently arranged; in addition, the stamping process is adopted to replace the traditional MIM process, the cost can be reduced by 10-20 times compared with the existing manufacturing process at least in the step of forming the inner shell, the manufacturing investment is saved, and the manufacturing efficiency is improved.

Description

USB connection structure and electronic equipment with same

Technical Field

The present disclosure relates to a USB connection structure, and more particularly, to a USB connection structure capable of improving space utilization of an electronic device and an electronic device having the same.

Background

The USB connection structure is an indispensable bridge for data transmission between different electronic devices. The USB connection structure includes a conventional USB connector, such as a USB2.0 interface, a USB3.0 interface, etc., where the conventional USB connector needs to distinguish front and back sides, and an external connection device needs to be aligned with an interface direction of a USB connection female socket (i.e., an internal device disposed in a mobile phone, a computer, etc.) to be inserted; still include neotype USB connector, for example have TYPE C interface, this TYPE neotype USB connector need not distinguish the positive and negative, external connection equipment with USB connect female seat direct cartridge can, realized that the positive and negative two sides can be inserted.

As shown in fig. 1, taking a new USB connector with TYPE C interface as an example, the USB connector has a tongue piece 10 and a shell, the tongue piece 10 is used for transmitting data information between an external device and an internal device, the shell is formed in a cylindrical shape and has a body 21 and ear plates 22 protruding from two sides of the body 21, the body 21 is used for wrapping the tongue piece 10, and the ear plates 22 have round holes for screwing with the internal device. A space for inserting an external connector is formed between the case through which the USB connector is connected to an internal device and the tongue 10. In the related art, the housing is molded by using a Metal Injection Molding (MIM) process, and a housing product is formed through steps of mixing metal powder with a binder, kneading, pulverizing, granulating, Injection Molding, degreasing, and sintering. The housing is formed with a housing body 21 and a rivet protruding inward from the housing body 21 by MIM process, and the tongue 10 is sheathed with plastic at an end near the internal device and formed with plastic as an IM (insert molding) unit, which is fixedly mounted inside the housing by the rivet.

The USB connector in the related art has the following drawbacks: the cylindrical inner shell has a substantially uniform inner diameter dimension in the insertion direction, and occupies a relatively large internal device space at the end close to the internal device; in addition, the inner shell is manufactured by the MIM process, which has many processes and relatively complicated processes, and although it is helpful to form a product with a complicated shape, the manufacturing cost is too high.

Disclosure of Invention

To overcome the problems in the related art, the present disclosure provides a USB connection structure and an electronic device having the same.

According to a first aspect of the embodiments of the present disclosure, there is provided a USB connection structure, including a tongue extending in an insertion direction of an external device and an internal device to transmit data between the internal device and the external device, the USB connection structure further including a fixedly installed inner shell and an outer shell, the outer shell being connected to the internal device, the inner shell and the tongue forming a space for insertion of the external device, the inner shell being formed by a stamping process and having an inner shell outer section close to the external device and an inner shell inner section close to the internal device, the inner shell outer section being larger in size than the inner shell inner section in a thickness direction and a width direction of the tongue.

Preferably, a first step is formed between the inner shell inner section and the inner shell outer section along the thickness direction of the tongue piece, and a second step is formed between the inner shell inner section and the inner shell outer section along the width direction of the tongue piece.

Preferably, the inner shell is formed through a drawing process.

Preferably, the inner case is formed by drawing the plate member, or by drawing the pipe member.

Preferably, the inner shell is formed by:

the plate is subjected to a drawing process to form: drawing the plate in multiple steps to form the plate; or the pipe fitting is subjected to a drawing process to form: the cylindrical tube is formed by multiple steps of expanding and withdrawing.

Preferably, the inner case has a process slit and a caulking slit formed through a bending process, and the process slit is covered with a sealing material film.

Preferably, the outer case includes an outer case body for being mounted with the inner case and a connection structure protruding from the outer case body for connecting the internal device, the outer case body being integrally formed with the connection structure through a stamping process.

Preferably, the outer shell body and the connecting structure are fixedly mounted on the inner shell by means of dispensing or laser welding.

Preferably, the USB connection structure conforms to TYPE C interface standard.

According to a second aspect of the embodiments of the present disclosure, an electronic device with a USB connection structure is provided, where the electronic device is a mobile phone, and the USB connection structure is the USB connection structure according to any one of the above technical solutions.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

the inner end of the inner shell occupies smaller dimensions in the thickness direction and the width direction of the tongue than the outer end, and when the USB connecting structure is installed in the internal device, the space occupied in the internal device can be saved in multiple directions so as to give way to the elements of the internal device, and the elements of the internal device can be conveniently arranged; in addition, the inner shell and the outer shell are distinguished by functions, namely the inner shell is used for sleeving the tongue pieces, the outer shell is used for connecting internal equipment, the inner shell and the outer shell are manufactured in a split mode, a stamping process is adopted for the cylindrical inner shell 2 to replace a traditional MIM process, the cost can be reduced by 10-20 times at least in the step of forming the inner shell compared with the existing manufacturing process, the manufacturing investment is saved, and meanwhile the manufacturing efficiency is improved.

When the internal equipment is a mobile phone, the redundant space can respectively give way to a screen of the mobile phone so as to make the whole mobile phone thinner and give way to a PCB (printed circuit board) of the mobile phone so as to more reasonably arrange electronic elements; of course, this excess space can also be made available in its entirety for the ring element of the inner device.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic perspective view of a USB connection structure in the prior art.

Fig. 2 is a schematic perspective view of a USB connection structure according to a first embodiment of the present invention.

Fig. 3 is a side sectional view of the USB connection structure in fig. 2.

Fig. 4 is an exploded view of the USB connection structure of fig. 2.

Description of reference numerals:

the prior art is as follows:

10 tongue

21 body

22 ear plate

The present disclosure:

1 tongue piece

11 base member

12 surround

2 inner shell

21 inner shell outer section

22 inner shell inner section

23 first step

24 second step

3 outer cover

31 outer shell outer section

32 housing inner section

33 connecting claw

34 ear plate

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

The invention provides a USB connecting structure which is used for connecting an external device (such as a data line) and an internal device (such as a mobile phone and a computer), and is provided with a tongue piece which is used for being installed on the internal device and extends along the inserting direction of the external device so as to be convenient for data transmission between the external device and the internal device.

Fig. 2 to 4 show a first embodiment of the USB connection structure, which is constructed in detail below.

The USB connection structure may include a tongue 1, an inner shell 2, and an outer shell 3, where the inner shell 2 and the outer shell 3 are sequentially sleeved outside the tongue 1, the tongue 1 is fixedly mounted on the inner shell 2, a space for inserting an external device is formed between the inner shell 2 and the tongue 1, the outer shell 3 is fixedly mounted on the inner shell 2, and the outer shell 3 is connected to the internal device, as in this embodiment, the outer shell 2 may be specifically connected to a PCB circuit board of the internal device (e.g., a mobile phone). Thus, the tongue 1 is fixed to the internal device by the inner and

outer shells

2 and 3.

In this embodiment, the inner case 2 is formed in a substantially cylindrical shape by a punching process so as to fit around the outside of the tongue 1. Specifically, the inner shell 2 has an outer end close to the external device and an inner end close to the internal device, the space for insertion is formed between the outer end of the inner shell 2 and the tongue 1, and the inner end of the inner shell 2 is used for being mounted with the tongue 1. The inner case 2 is formed by a punching process so that the dimension of the outer end in the thickness direction of the tongue 1 is larger than the dimension of the inner end in the thickness direction of the tongue 1, and the dimension of the outer end in the width direction of the tongue 1 is larger than the dimension of the inner end in the width direction of the tongue 1.

The inner end of the inner shell 2 occupies smaller dimensions in the thickness direction and the width direction of the tongue piece 1 than the outer end, and when the USB connecting structure is installed in an internal device, the space occupied in the internal device can be saved in multiple directions so as to give way to elements of the internal device, and the elements of the internal device can be conveniently arranged; in addition, the inner shell 2 and the outer shell 3 are distinguished by functions, namely the inner shell 2 is used for sleeving the tongue pieces 1, the outer shell 3 is used for connecting internal equipment, the inner shell 2 and the outer shell 3 are manufactured in a split mode, a stamping process is adopted for the cylindrical inner shell 2 to replace a traditional MIM process, the cost can be reduced by 10-20 times at least in the step of forming the inner shell 2 compared with the existing manufacturing process, manufacturing investment is saved, and meanwhile manufacturing efficiency is improved.

The various components of the USB connection structure are described in detail below.

Tongue 1

Tongue 1 is an important part of a USB connection structure having a data transmission function, and includes a base member 11 and a plurality of pins provided on base member 11, and the pins for connecting an external device and the pins for connecting an internal device communicate with each other, so that data is transmitted between the external device and the internal device. Tongue 1 further comprises a surrounding element 12 surrounding base element 11, surrounding element 12 being located at the end of tongue 1 near the internal equipment and being intended to be connected to inner shell 2. The enclosure 12 may be attached to the inner shell 2 by means of spot-gluing or laser welding.

Inner shell 2

The inner case 2 is formed in a substantially cylindrical shape whose cross-sectional shape is not circular but elliptical or oblong, so that the cross-section of the inner case 2 has a major diameter in the width direction of the tongue 1 and a minor diameter in the thickness direction of the tongue 1.

The "insertion direction" is in this section the direction of extent of the cylinder, i.e. the axial direction of the inner housing 2.

The inner shell 2 comprises an inner shell outer section 21 near the outer end and an inner shell inner section 22 near the inner end, the inner shell outer section 21 and the inner shell inner section 22 being formed one after the other in the insertion direction, together enclosing the tongues 1. The inner shell outer section 21 and the inner shell inner section 22 may be formed such that the major diameters thereof are the same, the minor diameter of the inner shell outer section 21 is larger than the minor diameter of the inner shell inner section 22, specifically, the inner shell outer section 21 and the inner shell inner section 22 may form a step at the junction, a first step 23 is formed between the inner shell inner section 22 and the inner shell outer section 21 in the thickness direction of the tongue piece 1, and a second step 24 is formed between the inner shell inner section 22 and the inner shell outer section 21 in the width direction of the tongue piece 1. When an external device is inserted into the USB connection structure, the space between the tongue piece 1 and the inner shell 2 may abut against the first step 23 and the second step 24, and may also abut against a blocking member, such as an elastic blocking material, disposed at the first step 23 and the second step 24.

Thus, the inner section 22 of the inner case is shortened along the thickness direction and the width direction of the tongue piece 1 compared with the outer section 21 of the inner case, so that a redundant annular space is formed at the rear side of the outer section 21 of the inner case along the insertion direction, and the redundant space can be used for accommodating elements of internal equipment, for example, when the internal equipment is a mobile phone, the redundant space can respectively give way to a screen of the mobile phone so as to make the whole mobile phone thinner, and give way to a PCB of the mobile phone so as to more reasonably arrange electronic elements; of course, this excess space can also be made available in its entirety for the ring element of the inner device.

The inner case 2 may be manufactured through a drawing process of a punching process (hereinafter, a punching drawing process). The forming process of the inner shell 2 is described below by taking as an example the stamping of sheets or plates, and the stamping of pipes or tubes to produce the inner shell 2:

when punching sheets, the axial direction of the inner shell 2 is the punching direction, and the finished product of the inner shell 2 is formed through the steps of punching blanking, multi-step drawing, shaping, lower bottom hole, adjustment, electroplating and the like, in the multi-step drawing process, the inner shell inner section 22 and the inner shell outer section 21 can be formed by drawing at the same time, or the inner shell inner section 22 can be formed by drawing firstly and then the inner shell outer section 21 can be formed by drawing, the drawing times are different according to different dies, in the embodiment, the inner shell 2 can be drawn for multiple times, and the inner shell 2 with better quality and standard shape can be formed by drawing gradually for multiple times;

when stamping the pipe, using the finished metal pipe as the raw material, or the pipe formed by rolling the sheet into a cylinder and welding the sheet to the seam as the raw material, firstly naturally shaping the pipe to form an inner shell inner section 22, wherein the inner shell inner section 22 has the same circumference and different section shapes as the raw pipe after natural shaping; then, the pipe fitting which is formed partially is put into a jig, the unprocessed part of the pipe fitting is expanded and drawn by the mold core to form the inner shell outer section 21, similarly, in the embodiment, the inner shell 2 can be drawn for many times, and the inner shell 2 with better quality and standard shape can be formed by drawing gradually for many times.

The inner shell 2 is manufactured by adopting a stamping and drawing process, and the inner shell 2 has excellent waterproof performance because no riveting gap and process gap exist.

The inner case 2 may be manufactured by a bending process (hereinafter, referred to as a press bending process) of a press process. The sheet or plate is used as a raw material, and is bent and butted to form a riveting gap at one axial side of the inner shell 2, and a process gap formed by a stamping and bending process is formed at the butted position of the inner shell inner section 22 and the inner shell outer section 21. In order to improve the waterproof property of the inner case 2, the process gap may be covered with a sealing material film made of a common sealing material.

Outer cover 3

The outer shell 3 includes an outer shell body 31 and a connection structure, both the outer shell body 31 and the connection structure are formed as a sheet, the outer shell body 31 has an outer shell outer section 31 and an inner shell inner section 22 connected along the insertion direction, the outer shell outer section 31 covers the inner shell outer section 21, and the outer shell inner section 32 covers the inner shell inner section 22.

The outer shell 3 is symmetrical with respect to the axial direction of the inner shell 2 and thus has the same axial direction as the inner shell 2, and further the outer shell body 31 and the connecting structure also have the same axial direction as the axial direction of the inner shell 2.

The coupling structure extends from the case outer section 31 and the case inner section 32 to both axial sides, and may include an ear plate 34 extending from the case outer section 31 and a coupling claw 33 extending from the case inner section 32, the ear plate 34 may have a screw hole 35 for screw-coupling with an internal device, and the coupling claw 33 may be for chucking with the internal device.

The outer shell inner section 32 and the outer shell outer section 31 form a step therebetween, corresponding to the step between the inner shell inner section 22 and the inner shell outer section 21. The connecting claw 33 forms three bends, a first bend, a second bend, and a third bend.

The three bends of the connecting claw 33 are connected in series, the first bend extending in the thickness direction of the tongue 1, the second bend extending in the width direction of the tongue 1, and the third bend extending in the thickness direction of the tongue 1, so that the connecting claw 33 covers the tongue 1 in the thickness direction on the side of the tongue 1 by the three bends and approximately corresponds to the dimension of the inner section 22 of the inner shell in the thickness direction of the tongue 1.

The ear plates 34 may be two and located on each axial side of the housing outer section 31, and the coupling claws 33 may be two and located on each axial side of the housing inner section 32. Mounting hole and screw can have been seted up to the interior equipment of being connected with shell 3, and the mounting hole of interior equipment is used for supplying to connect claw 33 to insert and the chucking, and the screw of interior equipment is used for cooperating with the screw of otic placode 34, and under the effect of connecting claw 33 and otic placode 34, shell 3 can install in interior equipment steadily.

The inner shell body 21 may be fixedly mounted to the outer shell 3 by the outer shell body 31, such as by laser welding or adhesive bonding between the inner shell outer section 21 and the outer shell outer section 31, and between the inner shell inner section 22 and the inner shell inner section 22.

In this embodiment, the outer shell 3 is manufactured through a stamping process, particularly, may be manufactured through stamping of a sheet metal member, the outer shell 3 is not manufactured through a complicated MIM process, does not have an excessively complicated shape, is simply manufactured through a stamping process, and may be stably mounted to an internal device through the inner shell body 31 and the connection structure.

The connecting structure and the housing body 31 may be formed integrally by a punching process, such as by punching a sheet metal part, or by a press-bending process.

It should be understood that the USB connection structure provided by the present invention is a USB connection female socket, which is typically installed within an internal device.

The USB connection structure may have a conventional USB structure, such as USB2.0 interface standard and USB3.0 interface standard, and may also conform to TYPE C interface standard.

The USB connecting structure can be arranged on a mobile phone and provides a charging interface and a data transmission interface of the mobile phone.

The first embodiment of the USB connection structure provided by the present invention is specifically described above, and the following points are described:

1. the inner housing inner section 22 and the inner housing outer section 21 may be formed without forming the first step 23 and the second step 24 therebetween and tapered from the inner housing outer section 21 in the insertion direction.

2. The inner casing 2 and the outer casing 3 are formed of a common metal material, such as stainless steel.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A USB connection structure, comprising a tongue extending in a direction of insertion of an external device into an internal device to transmit data between the internal device and the external device, wherein the USB connection structure further comprises a fixedly installed inner housing and an outer housing, the outer housing being connected to the internal device, the inner housing and the tongue forming a space for insertion of the external device, the inner housing being formed by a stamping process and having an inner housing outer section adjacent to the external device and an inner housing inner section adjacent to the internal device, the inner housing outer section having a larger dimension than the inner housing inner section in a thickness direction and a width direction of the tongue;

the inner shell inner section and the inner shell outer section form a first step along the thickness direction of the tongue piece, the first step is located on two sides of the inner shell inner section in the thickness direction, a second step is formed between the inner shell inner section and the inner shell outer section along the width direction of the tongue piece, the second step is located on two sides of the inner shell inner section in the width direction, and the first step and the second step extend in a plane perpendicular to the insertion direction, so that an annular space is formed on the inner shell outer section along the rear side of the insertion direction.

2. The USB connection structure according to claim 1, wherein the inner case is formed by a drawing process.

3. The USB connection structure according to claim 2, wherein the inner housing is formed by drawing a plate member or a pipe member.

4. The USB connection structure of claim 1, wherein the inner housing is formed by:

the plate is subjected to a drawing process to form: drawing the plate in multiple steps to form the plate; or

The pipe is formed by performing a drawing process: the cylindrical tube is formed by multiple steps of expanding and withdrawing.

5. The USB connection structure according to claim 4, wherein the inner case has a process slit and a caulking slit formed by a bending process, and the process slit is covered with a sealing material film.

6. The USB connecting structure according to claim 1, wherein the outer case includes an outer case body for mounting with the inner case and a connecting structure protruding from the outer case body for connecting with the internal device, the outer case body being integrally formed with the connecting structure by a punching process.

7. The USB connecting structure according to claim 6, wherein the outer shell and the connecting structure are fixed to the inner shell by dispensing or laser welding.

8. The USB connection structure of claim 1, wherein the USB connection structure conforms to TYPE C interface standard.

9. An electronic device with a USB connection structure, wherein the electronic device is a mobile phone, and the USB connection structure is the USB connection structure according to any one of claims 1 to 8.