Double-port USB flash disk

Abstract

The utility model discloses a double-port USB flash disk, and relates to the technical field of mobile storage. The double-port USB flash disk comprises a first main body and a shielding cover, the first main body comprises a metal shell and a circuit board arranged in the metal shell, two ends of the metal shell are respectively provided with a first connector and a second connector, and the first connector and the second connector are both connected with a ground wire of the circuit board; the shielding cover is arranged in the metal shell, the shielding cover and the circuit board are arranged at an interval and are electrically connected, and the shielding cover is electrically connected with the metal shell, the first connector and the second connector. The dual-port USB flash disk can prevent static electricity from influencing the working state of the chip, and can also reduce the influence of product radiation on the outside.

Description

TECHNICAL FIELD

[0001] The utility model relates to mobile storage technology field especially relates to a double -end U disk. BACKGROUND

[0002] Among the existing removable storage device, the most common is U disk. U disk is a kind of USB flash drive, it is a kind of micro high capacity mobile storage product of USB interface without physical driver. In order to adapt to computer and mobile phone simultaneously, the existing U disk is usually provided with Type-C connector and USB-A connector at opposite ends.

[0003] However, when the user uses the connector of one end to work, the radiation of the product will be dissipated to the outside world through the other end, which invisibly strengthens the interference of EMI;When the human body touches the static electricity of the non-working connector, the static electricity will reach the connector of the other end through the circuit board, when the static electricity flows through the inner layer of the circuit board, the working state of the chip will be affected, finally leading to the ESD problem of the product. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a double -end U disk, can avoid static electricity to influence the working state of chip, can also reduce the influence of product radiation to the outside world.

[0005] In order to achieve this purpose, the utility model adopts the following technical scheme:

[0006] A double -end U disk, comprising:

[0007] First main body, the first main body includes metal shell and the circuit board being arranged in the metal shell, the two ends of the metal shell are provided with first connector and second connector respectively, and the first connector and the second connector are connected with the ground wire of the circuit board;

[0008] Shielding cover, the shielding cover is arranged in the metal shell, the shielding cover is spaced apart from the circuit board and is electrically connected, and the shielding cover is electrically connected with the metal shell, the first connector and the second connector.

[0009] As optional scheme of the above-mentioned double -end U disk, the shielding cover includes second main body and limiting structure, the limiting structure includes first limiting part, the first limiting part is connected with the second main body, and the first limiting part is abutted on the circuit board to make the shielding cover be spaced apart from the circuit board.

[0010] As optional scheme of the above-mentioned double -end U disk, the limiting structure further includes second limiting part, the second limiting part is arranged at the end of the first limiting part away from the second main body, the circuit board is provided with limiting hole, and the second limiting part is arranged in the limiting hole.

[0011] As an optional solution of the double-port U disk, the shielding cover comprises a plurality of limiting structures, and the plurality of limiting structures are arranged on the outer periphery of the second body.

[0012] As an optional solution of the double-port U disk, the shielding cover comprises a second body, a first connecting portion and a second connecting portion, the first connecting portion comprises two first connecting walls arranged at opposite sides of the second body, the second body and / or the two first connecting walls abut against the first connecting head, the second connecting portion comprises two second connecting walls arranged at opposite sides of the second body, and the second body and / or the two second connecting walls abut against the second connecting head.

[0013] As an optional solution of the double-port U disk, one end of the first connecting wall towards the circuit board is connected with a first welding portion, one end of the second connecting wall towards the circuit board is connected with a second welding portion, and the first welding portion and the second welding portion are welded and fixed with the circuit board.

[0014] As an optional solution of the double-port U disk, a plurality of elastic sheets are protruded from a side of the shielding cover away from the circuit board, and the plurality of elastic sheets elastically abut against the metal shell.

[0015] As an optional solution of the double-port U disk, the plurality of elastic sheets are divided into first elastic sheets and second elastic sheets, the distance between the first elastic sheets and the first connecting head is smaller than the distance between the first elastic sheets and the second connecting head, and the distance between the second elastic sheets and the second connecting head is smaller than the distance between the second elastic sheets and the first connecting head.

[0016] As an optional solution of the double-port U disk, the shielding cover is integrally formed by a metal plate.

[0017] As an optional solution of the double-port U disk, the first body further comprises a first protective cover and a second protective cover, the first protective cover is used for accommodating the first connecting head, and the second protective cover is used for accommodating the second connecting head.

[0018] The utility model discloses the beneficial effect:

[0019] The utility model provides a kind of double-port U disk.The double-port U disk includes the first connector and the second connector being arranged in opposite ends, and the metal shell of double-port U disk is provided with shield case, and the ground wire of metal shell, first connector, second connector and circuit board can be connected by shield case, when human body touches one connector and generates static electricity, static electricity will reach another connector by shield case and the ground wire in circuit board, to avoid affecting the working state of chip, and shield case is connected with metal shell, first connector, second connector, equivalent to forming double-layer shielding to circuit board, greatly reduce the radiation problem of product. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structure diagram of double-port U disk provided by the utility model;

[0021] Figure 2 It is the structure diagram of double-port U disk provided by the utility model, and metal shell is removed;

[0022] Figure 3 It is the structure diagram of shield case provided by the utility model.

[0023] In the drawing:

[0024] 1, first main body;11, metal shell;12, circuit board;13, first connector;131, first shell;14, second connector;141, second shell;15, first protective cover;16, second protective cover;

[0025] 2, shield case;21, second main body;22, limiting structure;221, first limiting part;222, second limiting part;23, first connecting wall;24, second connecting wall;25, first welding part;26, second welding part;27, third welding part;281, first elastic sheet;282, second elastic sheet. DETAILED DESCRIPTION

[0026] The embodiments of the utility model are described in detail below, and the examples of embodiment are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as the limitation of the utility model.

[0027] In the description of the utility model, it is necessary to explain that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relation based on the drawing shown, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0028] Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" should be understood broadly, for example, it can be fixed connection, or it can be detachable connection; it can be mechanical connection, or it can be electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] Unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first feature and the second feature are in direct contact, or the first feature and the second feature are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0030] The technical scheme of the utility model will be further illustrated below by combining the drawings and through specific embodiments.

[0031] The embodiment provides a double-port U disk, as shown in Figure 1 and Figure 2 The double-port U disk comprises a first body 1, a circuit board 12 arranged in a metal shell 11, and a first connecting head 13 and a second connecting head 14 arranged at two ends of the metal shell 11, and the first connecting head 13 and the second connecting head 14 are electrically connected with the circuit board 12, so that the first connecting head 13 or the second connecting head 14 can perform normal reading and writing work when being plugged with an electronic device.

[0032] In order to adapt to computers and mobile phones, the existing U disk usually sets a Type-C connector and a USB-A connector at opposite ends. That is, in the embodiment, the first connector 13 is a USB-A connector to be plugged into a computer for adaptation, and the second connector 14 is a Type-C connector to be plugged into a mobile phone for adaptation.

[0033] But with the product is small, faster and faster read-write speed also began to bring new challenges, the first is electromagnetic compatibility problem, EMC (Electromagnetic Compatibility), EMC includes EMI (Electromagnetic Interference) and ESD (Electro-Static discharge).

[0034] The smaller the size of the product, the higher the frequency of the circuit board 12, the more likely it is to cause EMC problems. EMI interference caused by high-speed signals will be emitted to the outside through the gap of the product shell, and the small size of the circuit board 12 is not easy to withstand ESD test because it does not have a large area of ground return.

[0035] As Figures 1 to 3 shown, to solve the above problems, the dual-port U disk further includes a shield 2, and the circuit board 12 is provided with a ground wire, the first connector 13 and the second connector 14 are connected with the ground wire of the circuit board 12, the shield 2 is arranged in the metal shell 11, the shield 2 is electrically connected with the circuit board 12, and the shield 2 is electrically connected with the metal shell 11, the first connector 13 and the second connector 14.

[0036] The dual-port U disk includes a first connector 13 and a second connector 14 arranged at opposite ends, and a shield 2 arranged in the metal shell 11 of the dual-port U disk. The shield 2 can connect the metal shell 11, the first connector 13, the second connector 14 and the ground wire of the circuit board 12. When the human body touches one connector and generates static electricity, the static electricity will pass through the shield 2 and the ground wire in the circuit board 12 to the other connector, thereby avoiding affecting the working state of the chip. Moreover, the shield 2 is connected with the metal shell 11, the first connector 13 and the second connector 14, which forms a double-layer shield for the circuit board 12, greatly reducing the radiation problem of the product.

[0037] In the embodiment, the shield 2 includes a second body 21, and the second body 21 is arranged in a spaced manner with the circuit board 12. The second body 21 is the main structure of the shield 2, which is arranged in a spaced manner with the circuit board 12, so as to avoid the second body 21 from damaging the electronic elements on the circuit board 12, and also to avoid the short circuit of the circuit board 12.

[0038] In the embodiment, the shielding cover 2 further comprises a limiting structure 22, the limiting structure 22 comprises a first limiting part 221, the first limiting part 221 is connected with the second body 21, and the first limiting part 221 abuts against the circuit board 12, so that the second body 21 is arranged to be spaced from the circuit board 12.

[0039] The first limiting part 221 abuts against the circuit board 12, so that the relative position between the second body 21 and the circuit board 12 is kept stable, and the second body 21 is supported. It should be noted that the first limiting part 221 abuts against a part of the circuit board 12 on which no circuit and electronic element are arranged, so as to prevent short circuit or affect the normal work of the electronic element.

[0040] Further, the limiting structure 22 further comprises a second limiting part 222, the second limiting part 222 is arranged at an end of the first limiting part 221 away from the second body 21, the circuit board 12 is provided with a limiting hole, and the second limiting part 222 is arranged in the limiting hole.

[0041] The limiting cooperation between the second limiting part 222 and the limiting hole can improve the accuracy of the position between the shielding cover 2 and the circuit board 12, and facilitate an operator to accurately fix the connecting point when fixing the shielding cover 2 and the circuit board 12. It should be noted that there is a gap between the second limiting part 222 and the limiting hole, which facilitates the positioning of the shielding cover 2 and the circuit board 12 during assembly, and can also reserve a certain allowance, thereby reducing the requirement for machining precision and reducing cost.

[0042] In the embodiment, the shielding cover 2 comprises a plurality of limiting structures 22, and the plurality of limiting structures 22 are arranged at the outer periphery of the second body 21. The plurality of limiting structures 22 can support the second body 21 from multiple positions, ensure the stability of the second body 21, and limit from multiple positions, so as to ensure the accuracy of the relative position between the shielding cover 2 and the circuit board 12.

[0043] In the embodiment, the first connecting head 13 has a first shell 131, and the first shell 131 is a rectangular structure, and the second connecting head 14 has a second shell 141, and the second shell 141 is a long circular structure. The first shell 131 and the second shell 141 can not only play a protection role, but also can be connected with a computer or a mobile phone as a grounding structure.

[0044] As Figure 2 and Figure 3As shown, in order to improve the connectivity between the shielding cover 2 and the first connecting head 13 and the second connecting head 14, the shielding cover 2 comprises a first connecting part and a second connecting part, the first connecting part comprises two first connecting walls 23 arranged at opposite sides of the second body 21, and the second body 21 and the two first connecting walls 23 are in abutment with the first connecting head 13, and the second connecting part comprises two second connecting walls 24 arranged at opposite sides of the second body 21, and the second body 21 and the two second connecting walls 24 are in abutment with the second connecting head 14.

[0045] The two first connecting walls 23 of the first connecting part form a snap-fit structure with the second body 21, which is snap-fitted on the first shell 131 of the first connecting head 13, so that the shielding cover 2 is in abutment with the three outer walls of the first connecting head 13, which not only improves the reliability of the connection, but also reduces the contact resistance, facilitating the conduction of static electricity. Similarly, the two second connecting walls 24 of the second connecting part form a snap-fit structure with the second body 21, which is snap-fitted on the second shell 141 of the second connecting head 14, so that the shielding cover 2 is in abutment with the three outer walls of the second connecting head 14, which not only improves the reliability of the connection, but also reduces the contact resistance, facilitating the conduction of static electricity.

[0046] In some embodiments, the second body 21 or the two first connecting walls 23 can be in abutment with the first shell 131, and the second body 21 or the two second connecting walls 24 can be in abutment with the second shell 141, as long as the connectivity can be ensured. This structure can reduce the requirement for processing precision and reduce costs.

[0047] As shown in the drawings, Figure 3 The first connecting wall 23 is connected with a first welding part 25 at one end thereof facing the circuit board 12, and the second connecting wall 24 is connected with a second welding part 26 at one end thereof facing the circuit board 12, and the first welding part 25 and the second welding part 26 are welded and fixed to the circuit board 12.

[0048] The shielding cover 2 is welded and fixed to the circuit board 12, and the first welding part 25 is arranged on the first connecting wall 23, and the second welding part 26 is arranged on the second connecting wall 24, so that the fixing point is close to the connecting point, which can further improve the reliability of the connection between the first connecting wall 23 or the second body 21 and the first shell 131, and improve the reliability of the connection between the second connecting wall 24 or the second body 21 and the second shell 141.

[0049] Further, the second body 21 is further provided with a third welding part 27, since the first welding part 25 and the second welding part 26 are located at the end of the second body 21, and the third welding part 27 is located between the first welding part 25 and the second welding part 26, so as to be welded and fixed to the circuit board 12 at the middle position of the second body 21, further improving the reliability of the connection between the shielding cover 2 and the circuit board 12.

[0050] In the embodiment, the shielding cover 2 is provided with a plurality of elastic sheets on the side away from the circuit board 12, and the plurality of elastic sheets elastically abut against the metal shell 11. By elastically abutting against the metal shell 11 by means of the elastic sheets, the reliability of the connection between the shielding cover 2 and the shell can be ensured, and at the same time, the excessive deformation of the second body 21 as a whole can be avoided, and the circuit board 12 and the electronic elements on the circuit board 12 can be prevented from being pressed.

[0051] Specifically, the plurality of elastic sheets are divided into first elastic sheets 281 and second elastic sheets 282, the distance between the first elastic sheets 281 and the first connecting head 13 is smaller than the distance between the first elastic sheets 281 and the second connecting head 14, and the distance between the second elastic sheets 282 and the second connecting head 14 is smaller than the distance between the second elastic sheets 282 and the first connecting head 13.

[0052] That is, the first elastic sheets 281 are relatively close to the first connecting head 13, and the second elastic sheets 282 are relatively close to the second connecting head 14. This structure can make the position where the first elastic sheets 281 are subjected to the elastic force provided by the metal shell 11 closer to the first connecting head 13, so that the second body 21 is better pressed against the first shell 131 of the first connecting head 13, and make the position where the second elastic sheets 282 are subjected to the elastic force provided by the metal shell 11 closer to the second connecting head 14, so that the second body 21 is better pressed against the second shell 141 of the second connecting head 14, and the conduction is ensured.

[0053] Since the first connecting head 13 is a USB-A connecting head, and the second connecting head 14 is a Type-C connecting head, the width of the first shell 131 is greater than the width of the second shell 141. In the embodiment, the shielding cover 2 is provided with two first elastic sheets 281 and one second elastic sheet 282, so that the effect of the abutting force between the second body 21 and the first connecting head 13 is not much different from the effect of the abutting force between the second body 21 and the second connecting head 14.

[0054] In the embodiment, the shielding cover 2 is integrally formed by a metal plate, which has simple process, high processing efficiency, and high rigidity and strength due to the integral forming. Specifically, the metal plate is a steel plate, an aluminum plate or a copper plate.

[0055] As shown in FIG. 1, Figure 1 The first body 1 further includes a first protective cover 15 and a second protective cover 16, the first protective cover 15 is used for accommodating the first connecting head 13, and the second protective cover 16 is used for accommodating the second connecting head 14. The first protective cover 15 can protect the first connecting head 13, and the second protective cover 16 can protect the second connecting head 14, so as to avoid the influence on use due to bumping and deposition of dust.

[0056] In some embodiments, the first protection cover 15 is provided with a first protection slot, the first protection cover 15 is fixedly connected with the first connecting head 13 through the first protection slot, and the first protection cover 15 can be clamped with the first main body 1, so that the first connecting head 13 can be protected by the first protection cover 15, and the first protection cover 15 cannot be lost due to falling off.

[0057] Similarly, the second protection cover 16 is provided with a second protection slot, the second protection cover 16 is fixedly connected with the second connecting head 14 through the second protection slot, and the second protection cover 16 can be clamped with the first main body 1, so that the second connecting head 14 can be protected by the second protection cover 16, and the second protection cover 16 cannot be lost due to falling off.

[0058] In some embodiments, the first protection cover 15 is rotatably connected with the first main body 1, the first protection slot is opened on the side surface of the first protection cover 15, and when the first protection cover 15 rotates, the first connecting head 13 can be clamped into or out of the first protection slot.

[0059] Similarly, the second protection cover 16 is rotatably connected with the first main body 1, the second protection slot is opened on the side surface of the second protection cover 16, and when the second protection cover 16 rotates, the second connecting head 14 can be clamped into or out of the second protection slot.

[0060] The above is only a preferred embodiment of the present application, and for those skilled in the art, according to the idea of the present application, the specific implementation and application range can be changed, and the content of the specification should not be understood as a limitation of the present application.

Claims

1. A dual-port USB flash drive, characterized in that, include: The first body (1) includes a metal shell (11) and a circuit board (12) disposed inside the metal shell (11). The two ends of the metal shell (11) are respectively provided with a first connector (13) and a second connector (14), and the first connector (13) and the second connector (14) are both connected to the ground wire of the circuit board (12). The shield (2) is disposed inside the metal shell (11). The shield (2) is spaced apart from the circuit board (12) and electrically connected. The shield (2) is also electrically connected to the metal shell (11), the first connector (13) and the second connector (14).

2. The dual-port USB flash drive according to claim 1, characterized in that, The shield (2) includes a second body (21) and a limiting structure (22). The limiting structure (22) includes a first limiting part (221), which is connected to the second body (21). The first limiting part (221) abuts against the circuit board (12) so that the shield (2) and the circuit board (12) are spaced apart.

3. The dual-port USB flash drive according to claim 2, characterized in that, The limiting structure (22) further includes a second limiting part (222), which is disposed at the end of the first limiting part (221) away from the second main body (21). The circuit board (12) is provided with a limiting hole, and the second limiting part (222) passes through the limiting hole.

4. The dual-port USB flash drive according to claim 2, characterized in that, The shield (2) includes a plurality of the limiting structures (22), and the plurality of the limiting structures (22) are disposed on the outer periphery of the second body (21).

5. The dual-port USB flash drive according to claim 1, characterized in that, The shield (2) includes a second body (21), a first connecting part and a second connecting part. The first connecting part includes two first connecting walls (23) spaced apart on opposite sides of the second body (21). The second body (21) and / or the two first connecting walls (23) abut against the first connector (13). The second connecting part includes two second connecting walls (24) spaced apart on opposite sides of the second body (21). The second body (21) and / or the two second connecting walls (24) abut against the second connector (14).

6. The dual-port USB flash drive according to claim 5, characterized in that, The first connecting wall (23) is connected to a first welding part (25) at one end facing the circuit board (12), and the second connecting wall (24) is connected to a second welding part (26) at one end facing the circuit board (12). Both the first welding part (25) and the second welding part (26) are welded and fixed to the circuit board (12).

7. The dual-port USB flash drive according to claim 1, characterized in that, The shield (2) has multiple spring pieces protruding from the side opposite to the circuit board (12), and the multiple spring pieces elastically abut against the metal shell (11).

8. The dual-port USB flash drive according to claim 7, characterized in that, The multiple spring pieces are divided into a first spring piece (281) and a second spring piece (282). The distance between the first spring piece (281) and the first connector (13) is less than the distance between the first spring piece (281) and the second connector (14). The distance between the second spring piece (282) and the second connector (14) is less than the distance between the second spring piece (282) and the first connector (13).

9. The dual-port USB flash drive according to claim 1, characterized in that, The shielding cover (2) is integrally formed by a metal plate.

10. The dual-port USB flash drive according to claim 1, characterized in that, The first main body (1) also includes a first protective cover (15) and a second protective cover (16), the first protective cover (15) being used to house the first connector (13) and the second protective cover (16) being used to house the second connector (14).

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