CN219372889U

CN219372889U - Injection molding type USB flash disk structure

Info

Publication number: CN219372889U
Application number: CN202320182660.0U
Authority: CN
Inventors: 刘云飞; 莫金堂; 李垚; 张建明
Original assignee: Shenzhen Chuangyitong Technology Co Ltd
Current assignee: Shenzhen Chuangyitong Technology Co Ltd
Priority date: 2023-02-10
Filing date: 2023-02-10
Publication date: 2023-07-18
Anticipated expiration: 2033-02-10

Abstract

The utility model discloses an injection molding type USB flash disk structure, which comprises a USB shell, a PCB circuit board and a plastic shell, wherein the USB shell is arranged on the PCB circuit board; the USB shell comprises a main body part and a supporting part which are connected in an integrated manner, the main body part is provided with an inserting cavity, and the supporting part and the main body part are formed into a fixed groove in a surrounding manner; the contact part of the PCB is inserted into the insertion cavity to be fixed in a matching manner, the other end of the PCB is fixed in the fixing groove, and the PCB cannot deviate during injection molding, so that the positioning of the die is more accurate, the reject ratio of products is reduced, and convenience is brought to production; the plastic shell is coated outside the USB shell and the PCB through injection molding, the injection molding type USB flash disk is very stable in structure, the PCB in the plastic shell cannot be loosened, the plastic shell cannot be separated and scattered when being impacted by external force, and the plastic shell cannot fall off and separate when being plugged, so that the service life of a product is greatly prolonged, convenience is brought to a user, the product is simple to manufacture, the production cost is greatly reduced, and the existing requirements are met.

Description

Injection molding type USB flash disk structure

Technical Field

The utility model relates to the technical field of U disk, in particular to an injection molding type U disk structure.

Background

The USB flash disk is a short name of the USB disk, is called a USB flash drive, is called a USB flash disk in English, and is called a U disk in harmony. A usb disk is one type of flash memory, and is sometimes referred to as a flash disk. The USB interface is used as a miniature high-capacity mobile storage product without a physical driver, and plug and play is realized by connecting the USB interface with a computer. The largest difference between the USB flash disk and the hard disk is that the USB flash disk does not need a physical driver and is plug and play; and the storage capacity of the USB flash disk is far more than that of a floppy disk, and the USB flash disk is small in size and convenient to carry and use.

The USB flash disk integrates a disk storage technology, a flash memory technology and a universal serial bus technology. The port of the USB is connected with a computer and is a data input/output channel; the main control chip enables the computer to identify the USB flash disk as a movable disk, which is the brain of the USB flash disk; the Flash (Flash) chip of the U disk saves data, which is different from the memory of the computer and cannot be lost even after power failure; the PCB circuit board connects the components together and provides a platform for data processing.

The current USB flash disk is generally a structure that a PCB circuit board is installed in a lower shell and then an upper shell and a lower shell are buckled and fixed, the structure is not stable enough, the PCB circuit board in the shell is easy to loosen for a long time of use, the upper shell and the lower shell are easy to separate and scatter when being impacted by external force, and the upper shell and the lower shell are easy to fall off and separate when being plugged, so that the service life of a product is shorter, inconvenience is brought to a user, and the production cost of the product is higher; some USB flash discs are structures in which a PCB circuit board is directly put into a mould for injection molding, but when the structure is subjected to injection molding, the PCB circuit board can deviate and shift, so that the positioning is inaccurate, the reject ratio of products is high, inconvenience is brought to production, and the existing requirements cannot be met. Therefore, improvements to the current U disk are needed.

Disclosure of Invention

In view of the above, the main objective of the present utility model is to provide an injection-molded usb disk structure, which can effectively solve the problems of easy loosening of PCB circuit board, unstable structure, short service life and high production cost of the existing upper and lower shell type usb disk; the injection molding U disk is easy to shift and shift when in injection molding, so that the problems of inaccurate positioning and higher reject ratio of products are caused.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

an injection type USB flash disk structure comprises a USB shell, a PCB circuit board and a plastic shell; the USB shell comprises a main body part and a supporting part which are connected in an integrated manner, wherein the main body part is provided with an inserting cavity, the supporting part and the main body part are formed into a fixing groove in a surrounding mode, and the fixing groove is communicated with the inserting cavity; one end of the PCB is provided with a contact part which is inserted into the insertion cavity for fixation, and the other end of the PCB is fixed in the fixed groove; the plastic shell is coated outside the USB shell and the PCB through injection molding, and the front end of the main body part extends forwards out of the front end of the plastic shell.

As a preferable scheme, the USB housing is hardware.

As a preferable scheme, the rear end of the plastic shell is provided with a rope hanging hole.

Preferably, the upper and lower surfaces of the rear end of the plastic housing are penetrated with the rope hanging holes, and the rope hanging holes are elliptical.

As a preferable scheme, the plastic shell wraps the outer side face of the rear end of the main body part, the connecting face of the plastic shell and the main body part is an arc face, and the rear end and the supporting part of the PCB are buried in the plastic shell.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, and in particular, the technical scheme can be as follows:

the USB shell comprises a main body part and a supporting part which are connected in an integrated manner, the main body part is provided with an inserting cavity, the supporting part and the main body part are formed into a fixing groove in a surrounding mode, and the fixing groove is communicated with the inserting cavity; the contact part of the PCB is inserted into the insertion cavity to be fixed in a matching manner, the other end of the PCB is fixed in the fixing groove, and the PCB cannot deviate or shift during injection molding, so that the positioning of the die is more accurate, the reject ratio of products is greatly reduced, and convenience is brought to production; the plastic shell is coated outside the USB shell and the PCB through injection molding, the front end of the main body part extends forwards to the front end of the plastic shell, the injection molding type USB flash disk structure is very stable, the PCB in the plastic shell cannot be loosened, the plastic shell cannot be separated and dispersed when being impacted by external force, and the plastic shell cannot fall off and separate when being plugged, so that the service life of a product is greatly prolonged, convenience is brought to a user, the product is simple to manufacture, the production cost is greatly reduced, and the existing requirements are met.

In order to more clearly illustrate the structural features and efficacy of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is an assembled perspective view of a preferred embodiment of the present utility model;

FIG. 2 is an assembled perspective view of another angle of the preferred embodiment of the present utility model;

FIG. 3 is an exploded view of a preferred embodiment of the present utility model;

FIG. 4 is a cross-sectional view of a preferred embodiment of the present utility model.

The attached drawings are used for identifying and describing:

10. USB case 11 and main body

12. Support 101 and insertion cavity

102. Fixed slot 20 and PCB circuit board

21. Contact portion 30, plastic housing

31. Rope hanging holes 301 and arc surfaces.

Description of the embodiments

Referring to fig. 1 to 4, a specific structure of a preferred embodiment of the present utility model is shown, which includes a USB housing 10, a PCB 20 and a plastic housing 30.

The USB shell 10 comprises a main body 11 and a supporting part 12 which are integrally connected, wherein the main body 11 is provided with an inserting cavity 101, the supporting part 12 and the main body 11 are formed into a fixing groove 102 in a surrounding manner, and the fixing groove 102 is communicated with the inserting cavity 101; in this embodiment, the USB housing 10 is a hardware.

One end of the PCB 20 has a contact portion 21, and the contact portion 21 is inserted into the insertion cavity 101 to be fixed, and the other end of the PCB 20 is fixed in the fixing groove 102.

The plastic housing 30 is coated outside the USB housing 10 and the PCB 20 by injection molding, and the front end of the main body 11 extends forward beyond the front end of the plastic housing 30; in this embodiment, the rear end of the plastic housing 30 is provided with a rope hanging hole 31; specifically, the upper and lower surfaces of the rear end of the plastic housing 30 are formed with the rope hanging hole 31 in a penetrating manner, and the rope hanging hole 31 is oval; the plastic housing 30 covers the outer side surface of the rear end of the main body 11, the connection surface between the plastic housing 30 and the main body 11 is an arc surface 301, and the rear end of the PCB 20 and the supporting portion 12 are embedded in the plastic housing 30.

The manufacturing process of this embodiment is described in detail as follows:

firstly, forming the USB shell 10 and manufacturing the PCB 20; then, the contact part 21 of the PCB 20 is inserted into the insertion cavity 101 for fixing, and the other end of the PCB 20 is fixed in the fixing groove 102; finally, the assembled USB shell 10 and the PCB 20 are put into a mold to be injection molded into the plastic shell 30.

The design focus of the utility model is that: the USB shell comprises a main body part and a supporting part which are connected in an integrated manner, the main body part is provided with an inserting cavity, the supporting part and the main body part are formed into a fixing groove in a surrounding mode, and the fixing groove is communicated with the inserting cavity; the contact part of the PCB is inserted into the insertion cavity to be fixed in a matching manner, the other end of the PCB is fixed in the fixing groove, and the PCB cannot deviate or shift during injection molding, so that the positioning of the die is more accurate, the reject ratio of products is greatly reduced, and convenience is brought to production; the plastic shell is coated outside the USB shell and the PCB through injection molding, the front end of the main body part extends forwards to the front end of the plastic shell, the injection molding type USB flash disk structure is very stable, the PCB in the plastic shell cannot be loosened, the plastic shell cannot be separated and dispersed when being impacted by external force, and the plastic shell cannot fall off and separate when being plugged, so that the service life of a product is greatly prolonged, convenience is brought to a user, the product is simple to manufacture, the production cost is greatly reduced, and the existing requirements are met.

The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present utility model are still within the scope of the technical solutions of the present utility model.

Claims

1. An injection molding type USB flash disk structure, which is characterized in that: comprises a USB shell, a PCB circuit board and a plastic shell; the USB shell comprises a main body part and a supporting part which are connected in an integrated manner, wherein the main body part is provided with an inserting cavity, the supporting part and the main body part are formed into a fixing groove in a surrounding mode, and the fixing groove is communicated with the inserting cavity; one end of the PCB is provided with a contact part which is inserted into the insertion cavity for fixation, and the other end of the PCB is fixed in the fixed groove; the plastic shell is coated outside the USB shell and the PCB through injection molding, and the front end of the main body part extends forwards out of the front end of the plastic shell.

2. The injection molded U-disk structure of claim 1, wherein: the USB shell is hardware.

3. The injection molded U-disk structure of claim 1, wherein: the rear end of the plastic shell is provided with a rope hanging hole.

4. The injection molded U disk structure of claim 3, wherein: the upper surface and the lower surface of the rear end of the plastic shell are penetrated and formed with the rope hanging holes, and the rope hanging holes are elliptical.

5. The injection molded U-disk structure of claim 1, wherein: the plastic shell covers the outer side face of the rear end of the main body part, the connecting face of the plastic shell and the main body part is an arc face, and the rear end and the supporting part of the PCB are buried in the plastic shell.