Universal serial bus device

Abstract

A universal serial bus device includes a base, a circuit board, a cover, a plurality of soldering points, a switch and a button assembly. The circuit board is disposed on the base and has a front button end, a rear plug-in end and a ground wire. The rear plug-in end is used to be plugged into a connection port of a computer. The cover covers the front button end and has a button opening. The plurality of soldering points are formed on the front button end and electrically connected to the ground wire. The switch has a metal cover and is soldered to the plurality of soldering points to control wireless connection between the computer and an external device. The button assembly is movably disposed in the button opening and covers the front button end to press and trigger the switch. Electrostatic discharge from the button opening can pass through a first guide hole of the button assembly corresponding to the switch and conduct to the ground wire through the metal cover and the soldering points.

Description

Technical Field

[0001] This invention relates to a universal serial bus device, and more particularly to a universal serial bus device with electrostatic discharge (ESD) protection capability. Background Technology

[0002] Today, many electronic products are moving towards or gradually replacing wired devices with wireless ones. This not only increases the convenience for users but also breaks through the operational limitations caused by wired devices. Common examples include wireless mice, wireless keyboards, and wireless network cameras. Among these, essential input tools such as wireless mice and wireless keyboards are the industry's main focus of development.

[0003] These external devices that can wirelessly connect to a computer, such as a wireless mouse, are equipped with a Universal Serial Bus (USB) device that provides wireless reception and plug-and-play functionality to connect to the computer's port. This allows the wireless mouse to control the computer via wireless signal transmission between itself and the antenna within the USB device. In practical applications, the front of the USB device typically features a button that the user can press to trigger the wireless pairing operation. However, because the front cover of the USB device has an opening for the button, electrostatic discharge (ESD) can easily enter through this opening and damage the internal electronic components (such as antennas and switches), significantly affecting the device's ESD resistance and lifespan. Summary of the Invention

[0004] In view of the problems in the prior art, the present invention provides a universal serial bus device to solve the above problems.

[0005] Therefore, the technical problem to be solved by the present invention is to provide a universal serial bus device suitable for establishing a wireless connection between a computer and an external device, the universal serial bus device comprising:

[0006] Base;

[0007] A circuit board is disposed on the base and has a front button end, a rear plug end and a ground wire, the rear plug end being used to plug into the connection port of the computer.

[0008] The top cover is located at the end of the front button and has a button opening;

[0009] Multiple solder joints are formed on the upper surface of the front button end and electrically connected to the grounding wire;

[0010] A switch having a metal cover soldered to a plurality of solder points, the switch being used to control a wireless connection between the computer and the external device; and

[0011] A button kit, which is movably inserted into the button opening and sleeved on the end of the front button for pressing to trigger the switch, the button kit having a first guide hole corresponding to the position of the switch;

[0012] Electrostatic discharge entering from the button opening can be conducted to the grounding wire through the first guide hole and via the metal cover and at least one of the plurality of solder points.

[0013] As an optional technical solution, it also includes:

[0014] A bottom conductive foil is formed on the lower surface of the front button end and is electrically connected to the ground wire. The button assembly has a second guide hole corresponding to the position of the bottom conductive foil.

[0015] Electrostatic discharge entering through the button opening can be conducted to the grounding wire through the second guide hole and the bottom conductive foil to discharge.

[0016] As an optional technical solution, it also includes:

[0017] A rear conductive foil is formed on the upper surface near the rear plug end and is electrically connected to the ground wire;

[0018] A metal housing, connected to the upper cover and fitted onto the rear insertion end, the metal housing being bent downwards to form a contact piece corresponding to the position of the rear conductive foil; and

[0019] A conductive element is disposed on the rear conductive foil and abuts against the contact piece;

[0020] The electrostatic discharge conducted to the grounding wire can be conducted to the computer terminal for discharge via the rear conductive foil, the conductive element and the metal casing.

[0021] As an optional technical solution, the top cover has a light-emitting hole adjacent to the metal cover, and the universal serial bus device further includes:

[0022] An indicator light source is positioned on the top cover corresponding to the light outlet and is electrically connected to the circuit board to emit light from the light outlet.

[0023] Electrostatic discharge entering through the light outlet can be conducted to the grounding wire via the metal cover and at least one of the solder joints.

[0024] The present invention also provides a universal serial bus device suitable for establishing a wireless connection between a computer and an external device, the universal serial bus device comprising:

[0025] Base;

[0026] A circuit board is disposed on the base and has a front button end, a rear plug end and a ground wire, the rear plug end being used to plug into the connection port of the computer.

[0027] The top cover is located at the end of the front button and has a button opening;

[0028] An antenna, which is mounted on the upper surface of the end of the front button; and

[0029] A button kit, which is movably inserted into the button opening and fitted onto the end of the front button for pressing a trigger switch to control the wireless connection between the computer and the external device.

[0030] The button assembly also has a covering structure corresponding to the antenna position. The covering structure is arranged around the antenna to prevent electrostatic discharge entering from the button opening from being conducted to the antenna.

[0031] As an optional technical solution, it also includes:

[0032] A bottom conductive foil is formed on the lower surface of the front button end and is electrically connected to the ground wire. The button assembly has a guide hole corresponding to the position of the bottom conductive foil.

[0033] Electrostatic discharge entering through the button opening can be conducted to the grounding wire via the guide hole and the bottom conductive foil to discharge.

[0034] As an optional technical solution, it also includes:

[0035] A rear conductive foil is formed on the upper surface near the rear plug end and is electrically connected to the ground wire;

[0036] A metal housing, connected to the upper cover and fitted onto the rear insertion end, the metal housing being bent downwards to form a contact piece corresponding to the position of the rear conductive foil; and

[0037] A conductive element is disposed on the rear conductive foil and abuts against the contact piece;

[0038] The electrostatic discharge conducted to the grounding wire can be conducted to the computer terminal for discharge via the rear conductive foil, the conductive element and the metal casing.

[0039] The present invention also provides a universal serial bus device suitable for establishing a wireless connection between a computer and an external device, the universal serial bus device comprising:

[0040] Base;

[0041] A circuit board is disposed on the base and has a front button end, a rear plug end and a ground wire, the rear plug end being used to plug into the connection port of the computer.

[0042] The top cover is located at the end of the front button and has a button opening;

[0043] A button kit, which is movably inserted into the button opening and fitted onto the end of the front button for pressing a trigger switch to control the wireless connection between the computer and the external device.

[0044] A rear conductive foil is formed on the upper surface near the rear plug end and is electrically connected to the ground wire;

[0045] A metal housing, connected to the upper cover and fitted onto the rear insertion end, the metal housing being bent downwards to form a contact piece corresponding to the position of the rear conductive foil; and

[0046] A conductive element is disposed on the rear conductive foil and abuts against the contact piece;

[0047] The electrostatic discharge conducted to the grounding wire can be conducted to the computer terminal for discharge via the rear conductive foil, the conductive element and the metal casing.

[0048] As an optional technical solution, it also includes:

[0049] A bottom conductive foil is formed on the lower surface of the front button end and is electrically connected to the ground wire. The button assembly has a guide hole corresponding to the position of the bottom conductive foil.

[0050] Electrostatic discharge entering through the button opening can be conducted to the grounding wire via the guide hole and the bottom conductive foil to discharge.

[0051] As an optional technical solution, the conductive component is a conductive block or a bent conductive spring.

[0052] As an optional technical solution, the conductive block is clamped between the metal casing and the rear conductive foil.

[0053] As an optional technical solution, the bent conductive spring is welded to the rear conductive foil.

[0054] Compared to existing technologies, the solder point grounding design, the rear conductive foil design, and the antenna covering design of the universal serial bus device of the present invention can be implemented individually or selectively applied in combination, thereby improving the design flexibility of the universal serial bus device of the present invention in terms of electrostatic grounding protection. For example, in an embodiment that omits the solder point grounding design and the rear conductive foil design, the universal serial bus device of the present invention can only use the antenna covering design to generate an anti-electrostatic discharge effect that prevents electrostatic discharge from entering through the button opening from being conducted to the antenna. As for other derivative embodiments (such as embodiments that only use the solder point grounding design or the rear conductive foil design, embodiments that only use the solder point grounding design and the antenna covering design, etc.), their related descriptions can be deduced by analogy and will not be repeated here.

[0055] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Attached Figure Description

[0056] Figure 1 This is a three-dimensional schematic diagram of a universal serial bus device proposed according to an embodiment of the present invention.

[0057] Figure 2 for Figure 1 An exploded view of a universal serial bus device.

[0058] Figure 3 for Figure 1 An exploded view of the circuit board, top cover, switches, and button assembly from another perspective.

[0059] Figure 4 for Figure 1 A simplified side view of the circuit board.

[0060] Figure 5 for Figure 1 A schematic diagram of the internal assembly of a universal serial bus device.

[0061] Figure 6 for Figure 1 A schematic cross-sectional view of the Universal Serial Bus device along section line AA. Implementation

[0062] To provide a further understanding of the purpose, structure, features, and functions of the present invention, detailed descriptions are provided below with reference to specific embodiments.

[0063] Please see Figure 1 , Figure 2 , Figure 3 as well as Figure 4 , Figure 1 This is a perspective view of the universal serial bus device 10 proposed according to an embodiment of the present invention. Figure 2 for Figure 1 An exploded view of the universal serial bus device 10. Figure 3 for Figure 1 An exploded view of the circuit board 14, top cover 16, switch 20, and button assembly 22 from another perspective. Figure 4 for Figure 1 A simplified side view of the circuit board 14, wherein, in order to clearly show the component configuration on the circuit board 14, the circuit board 14 and its related components are shown on... Figure 4 The interface is presented using only simple cubes. The Universal Serial Bus device 10 is best suited for establishing wireless connections between a computer (such as a laptop or desktop computer) and an external device (such as a wireless keyboard or wireless mouse), allowing the external device to perform control operations on the computer (such as text input, cursor movement, etc.). Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, the Universal Serial Bus device 10 includes a base 12, a circuit board 14, a top cover 16, and multiple solder points 18 (such as solder joints). Figure 3 The circuit board 14 is mounted on the base 12 and has a front button end 24, a rear plug end 26, and a ground wire 28. The rear plug end 26 can preferably be adopted as follows: Figure 2 The gold finger method shown is presented (but not limited to) for use as a connection port on the computer side. The relevant description of its connection design for the Universal Serial Bus device 10 is common in the prior art and will not be repeated here.

[0064] The electrostatic discharge (ESD) protection design of the universal serial bus device 10 is described in detail here. Figures 1 to 4 As can be seen, the top cover 16 covers the front button end 24 and has a button opening 30. Multiple solder points 18 are formed on the upper surface S1 of the front button end 24 and are electrically connected to the grounding wire 28 of the circuit board 14. The switch 20 can be used to control the wireless connection between the computer and the external device and has a metal cover 21 and is soldered to multiple solder points 18. The button kit 22 is fitted on the front button end 24 and is movably inserted into the button opening 30 so that the user can trigger the switch 20 by pressing the button kit 22. The button kit 22 has a first guide hole 32 corresponding to the position of the switch 20 to establish an electrostatic discharge guiding path in the top cover 16. As for the relevant description of the circuit grounding design of the circuit board 14, it is common in the prior art and will not be repeated here.

[0065] With the above design, if electrostatic discharge occurs and enters the universal serial bus device 10 through the button opening 30 of the upper cover 16, for example... Figure 1The electrostatic discharge E1 shown enters from the upper part of the button opening 30. At this time, the electrostatic discharge E1 entering from the button opening 30 is smoothly conducted to the grounding wire 28 of the circuit board 14 via a relatively short electrostatic conduction path established by the first guide hole 32, the metal cover 21, and at least one of the multiple solder points 18 (that is, the metal cover 21 grounded through the solder point 18 can provide a metal shielding protection effect for the switch 20), thereby generating electrostatic grounding protection. In this way, the present invention can effectively solve the problem mentioned in the prior art of electrostatic discharge entering from the button opening of the universal serial bus device and causing damage to the internal electronic components (such as antennas, switches, etc.) of the universal serial bus device, thereby greatly improving the electrostatic discharge resistance and service life of the universal serial bus device.

[0066] It should be noted that, in order to improve the bottom electrostatic discharge resistance of the Universal Serial Bus device, the present invention may further employ a bottom conductive foil configuration, for example, such as... Figure 2 as well as Figure 4 As shown, the universal serial bus device 10 may further include a bottom conductive foil 34, which may be formed on the lower surface S2 of the front button end 24 and electrically connected to the ground wire 28. The button assembly 22 has a second guide hole 36 formed at the position corresponding to the bottom conductive foil 34 to establish another electrostatic discharge guiding path within the upper cover 16. Thus, through the above design, if... Figure 1 The electrostatic discharge E2 shown enters the Universal Serial Bus device 10 from the lower side of the button opening 30. At this time, the electrostatic discharge E2 will be successfully conducted to the ground wire 28 of the circuit board 14 through the relatively short electrostatic conduction path established by the second guide hole 36 and the bottom conductive foil 34 (that is, the bottom conductive foil 34 can provide a metal shielding protection effect for the circuit board 14), thereby achieving the protection effect of electrostatic grounding at the bottom of the Universal Serial Bus device.

[0067] In practical applications, this invention can also employ an electrostatic grounding protection design that grounds the circuit board to the computer terminal for discharge. For example, please refer to [link to relevant documentation]. Figure 2 , Figure 4 , Figure 5 as well as Figure 6 , Figure 5 for Figure 1 Internal assembly diagram of the universal serial bus device 10. Figure 6 for Figure 1 A cross-sectional view of the universal serial bus device 10 along section line AA. (See diagram below.) Figure 2 , Figure 4 , Figure 5 as well as Figure 6As shown, the universal serial bus device 10 may further include a rear conductive foil 38, a metal housing 40, and a conductive element 42. The rear conductive foil 38 is formed on the upper surface S1 near the rear plug-in end 26 and is electrically connected to the ground wire 28. The metal housing 40 is connected to the upper cover 16 and sleeved on the rear plug-in end 26. The metal housing 40 is bent downwards corresponding to the position of the rear conductive foil 38 to form a contact piece 41. The conductive element 42 can preferably be a bent conductive spring (but is not limited thereto; the present invention can also use other conductive element configurations, such as a conductive block configured to be clamped between the metal housing and the rear conductive foil). The conductive element 42 is disposed on the rear conductive foil 38 (e.g., by welding, but not limited thereto) and abuts against the contact piece 41 (e.g., Figure 6 As shown), the electrostatic discharge (i.e., electrostatic discharge E1 and electrostatic discharge E2) conducted to the grounding wire 28 mentioned in the above embodiment can be conducted to the computer end for discharge through the electrostatic conduction path established by the conductive foil 38, the conductive element 42 and the metal casing 40. In this way, the present invention can further improve the electrostatic discharge resistance of the Universal Serial Bus device.

[0068] Furthermore, if electrostatic discharge originates from above the Universal Serial Bus device 10, the present invention can also provide anti-electrostatic discharge functionality through the design of the switch 20 having a metal cover 21 soldered to the solder point 18 for electrical connection with the ground terminal 28 of the circuit board 14. For example, Figure 1 as well as Figure 6 As shown, the top cover 16 has a light-emitting hole 44 near the metal cover 21. The Universal Serial Bus (USB) device 10 may also include an indicator light source 46. The indicator light source 46 (preferably a light-emitting diode, but not limited thereto) is located on the top cover 16 corresponding to the light-emitting hole 44 and electrically connected to the circuit board 14 to emit light from the light-emitting hole 44, thereby providing a light-emitting indication function (such as indicating the wireless pairing status of the USB device 10). In this configuration, electrostatic discharge E3 entering the USB device 10 from the light-emitting hole 44 will be smoothly conducted to the ground wire 28 of the circuit board 14 via a relatively short electrostatic conduction path established by the light-emitting hole 44, the metal cover 21, and at least one of the multiple solder points 18, thereby achieving the protective effect of electrostatic grounding above the USB device.

[0069] It is worth mentioning that, in order to effectively prevent electrostatic discharge entering through the button opening from being directly conducted to the antenna located at the end of the front button, the present invention can employ a structural encapsulation design. For example, by... Figure 5It is understood that the Universal Serial Bus device 10 may also include an antenna 48, which is mounted on the upper surface S1 of the front button end 24 to provide wireless signal transmission and reception functions. The button kit 22 may also have a covering structure 23 corresponding to the position of the antenna 48. The covering structure 23 is arranged around the antenna 48 to prevent electrostatic discharge entering from the button opening 30 from being conducted to the antenna 48 (because if electrostatic discharge entering the Universal Serial Bus device 10 from the button opening 30 is to reach the antenna 48, it must first bypass the covering structure 23, so the surrounding arrangement of the covering structure 23 can produce the effect of preventing electrostatic discharge).

[0070] In summary, the solder point grounding design, the rear conductive foil design, and the antenna covering design mentioned in the embodiments of the present invention can be implemented individually or selectively applied in combination, thereby improving the design flexibility of the universal serial bus device of the present invention in terms of electrostatic grounding protection. For example, in an embodiment that omits the solder point grounding design and the rear conductive foil design, the universal serial bus device of the present invention can only use the antenna covering design to generate an anti-electrostatic discharge effect that prevents electrostatic discharge from entering through the button opening from being conducted to the antenna. As for other derivative embodiments (such as embodiments that only use the solder point grounding design or the rear conductive foil design, embodiments that only use the solder point grounding design and the antenna covering design, etc.), their related descriptions can be deduced by analogy and will not be repeated here.

[0071] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. A universal serial bus device suitable for establishing a wireless connection between a computer and an external device, characterized in that, This universal serial bus device includes: Base; A circuit board is disposed on the base and has a front button end, a rear plug end and a ground wire, the rear plug end being used to plug into the connection port of the computer. The top cover is located at the end of the front button and has a button opening; Multiple solder joints are formed on the upper surface of the front button end and electrically connected to the grounding wire; A switch having a metal cover soldered to a plurality of solder points, the switch being used to control a wireless connection between the computer and the external device; and A button kit, which is movably inserted into the button opening and sleeved on the end of the front button for pressing to trigger the switch, the button kit having a first guide hole corresponding to the position of the switch; Electrostatic discharge entering from the button opening can be conducted to the grounding wire through the first guide hole and via the metal cover and at least one of the plurality of solder points.

2. The universal serial bus device as described in claim 1, characterized in that, It also includes: A bottom conductive foil is formed on the lower surface of the front button end and is electrically connected to the ground wire. The button assembly has a second guide hole corresponding to the position of the bottom conductive foil. Electrostatic discharge entering through the button opening can be conducted to the grounding wire through the second guide hole and the bottom conductive foil to discharge.

3. The universal serial bus device as described in claim 1, characterized in that, It also includes: A rear conductive foil is formed on the upper surface near the rear plug end and is electrically connected to the ground wire; A metal housing, connected to the upper cover and fitted onto the rear insertion end, the metal housing being bent downwards to form a contact piece corresponding to the position of the rear conductive foil; and A conductive element is disposed on the rear conductive foil and abuts against the contact piece; The electrostatic discharge conducted to the grounding wire can be conducted to the computer terminal for discharge via the rear conductive foil, the conductive element and the metal casing.

4. The universal serial bus device as described in claim 1, characterized in that, The top cover has a light-emitting hole adjacent to the metal cover, and the universal serial bus device also includes: An indicator light source is positioned on the top cover corresponding to the light outlet and is electrically connected to the circuit board to emit light from the light outlet. Electrostatic discharge entering through the light outlet can be conducted to the grounding wire via the metal cover and at least one of the solder joints.

5. A universal serial bus device suitable for establishing a wireless connection between a computer and an external device, characterized in that, This universal serial bus device includes: Base; A circuit board is disposed on the base and has a front button end, a rear plug end and a ground wire, the rear plug end being used to plug into the connection port of the computer. The top cover is located at the end of the front button and has a button opening; An antenna, which is mounted on the upper surface of the end of the front button; and A button kit, which is movably inserted into the button opening and fitted onto the end of the front button for pressing a trigger switch to control the wireless connection between the computer and the external device. The button assembly also has a covering structure corresponding to the antenna position. The covering structure is arranged around the antenna to prevent electrostatic discharge entering from the button opening from being conducted to the antenna.

6. The universal serial bus device as described in claim 5, characterized in that, It also includes: A bottom conductive foil is formed on the lower surface of the front button end and is electrically connected to the ground wire. The button assembly has a guide hole corresponding to the position of the bottom conductive foil. Electrostatic discharge entering through the button opening can be conducted to the grounding wire via the guide hole and the bottom conductive foil to discharge.

7. The universal serial bus device as described in claim 5, characterized in that, It also includes: A rear conductive foil is formed on the upper surface near the rear plug end and is electrically connected to the ground wire; A metal housing, connected to the upper cover and fitted onto the rear insertion end, the metal housing being bent downwards to form a contact piece corresponding to the position of the rear conductive foil; and A conductive element is disposed on the rear conductive foil and abuts against the contact piece; The electrostatic discharge conducted to the grounding wire can be conducted to the computer terminal for discharge via the rear conductive foil, the conductive element and the metal casing.

8. A universal serial bus device suitable for establishing a wireless connection between a computer and an external device, characterized in that, This universal serial bus device includes: Base; A circuit board is disposed on the base and has a front button end, a rear plug end and a ground wire, the rear plug end being used to plug into the connection port of the computer. The top cover is located at the end of the front button and has a button opening; A button kit, which is movably inserted into the button opening and fitted onto the end of the front button for pressing a trigger switch to control the wireless connection between the computer and the external device. A rear conductive foil is formed on the upper surface of the front button end near the rear plug end and is electrically connected to the ground wire; A metal housing, connected to the upper cover and fitted onto the rear insertion end, the metal housing being bent downwards to form a contact piece corresponding to the position of the rear conductive foil; and A conductive element is disposed on the rear conductive foil and abuts against the contact piece; The electrostatic discharge conducted to the grounding wire can be conducted to the computer terminal for discharge via the rear conductive foil, the conductive element and the metal casing.

9. The universal serial bus device as described in claim 8, characterized in that, It also includes: A bottom conductive foil is formed on the lower surface of the front button end and is electrically connected to the ground wire. The button assembly has a guide hole corresponding to the position of the bottom conductive foil. Electrostatic discharge entering through the button opening can be conducted to the grounding wire via the guide hole and the bottom conductive foil to discharge.

10. The universal serial bus device as claimed in claim 8, characterized in that, The conductive component is a conductive block or a bent conductive spring.

11. The universal serial bus device as claimed in claim 10, characterized in that, The conductive block is clamped between the metal casing and the rear conductive foil.

12. The universal serial bus device as claimed in claim 10, characterized in that, The bent conductive spring is welded to the subsequent conductive foil.

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