The present invention relates to a universal serial bus device, and more specifically, to a universal serial bus device having an anti-electrostatic discharge function.
Nowadays, instead of a wired connection manner, many electronic products are developed in a wireless connection manner, which not only improves convenience in use but also reduces the operational limitations caused by wired connection, such as a wireless mouse, a wireless keyboard, and a wireless network camera. Among these wireless electronic products, input tools (e.g. a wireless mouse and a wireless keyboard) are the most important products in the industry.
These input tools that can be wirelessly connected to a computer terminal, such as a wireless mouse, are usually equipped with a universal serial bus device having wireless connection and plug-and-play functions to be connected to a connection port of the computer terminal. As such, the wireless mouse can perform control operations on the computer terminal via wireless signal transmission between the wireless mouse and an antenna in the universal serial bus device. In practical application, a front end of the universal serial bus device usually has a button for a user to press, such that the universal serial bus device can be triggered to perform the aforesaid wireless pairing operation. However, since the button is movably disposed through an opening formed on a front cover of the universal serial bus device, it may cause electrostatic discharge to enter the universal serial bus device easily from the opening, so as to damage internal components (e.g., an antenna, a switch, etc.) of the universal serial bus device. As such, the anti-electrostatic discharge ability and service life of the universal serial bus device can be influenced greatly.
The present invention provides a universal serial bus device suitable for establishing wireless connection between a computer terminal and an external device. The universal serial bus device includes a base, a circuit board, an upper cover, a plurality of solder points, a switch, and a button mount. The circuit board is disposed on the base and has a front-end portion, a rear-end portion and a ground circuitry. The rear-end portion is for inserting into a connection port of the computer terminal. The upper cover covers the front-end portion and has an opening. The plurality of solder points is formed on an upper surface of the front-end portion and coupled to the ground circuitry. The switch has a metal cover. The switch is soldered to the plurality of solder points for controlling wireless connection between the computer terminal and the external device. The button mount is movably disposed through the opening and sleeves the front-end portion for triggering the switch. The button mount has a first guide hole formed corresponding to the switch. An electrostatic discharge entering from the opening passes through the first guide hole and is conducted to the ground circuitry via the metal cover and at least one of the plurality of solder points.
The present invention further provides a universal serial bus device suitable for establishing wireless connection between a computer terminal and an external device. The universal serial bus device includes a base, a circuit board, an upper cover, an antenna, and a button mount. The circuit board is disposed on the base and has a front-end portion, a rear-end portion and a ground circuitry. The rear-end portion is for inserting into a connection port of the computer terminal. The upper cover covers the front-end portion and has an opening. The antenna is mounted on an upper surface of the front-end portion. The button mount is movably disposed through the opening and sleeves the front-end portion for triggering a switch to control wireless connection between the computer terminal and the external device. The button mount has a covering structure formed corresponding to the antenna, and the covering structure is disposed around the antenna for preventing an electrostatic discharge from being conducted to the antenna via the opening.
The present invention further provides a universal serial bus device suitable for establishing wireless connection between a computer terminal and an external device. The universal serial bus device includes a base, a circuit board, an upper cover, a button mount, a rear conductive foil, a metal casing, and a conductive member. The circuit board is disposed on the base and has a front-end portion, a rear-end portion and a ground circuitry. The rear-end portion is for inserting into a connection port of the computer terminal. The upper cover covers the front-end portion and has an opening. The button mount is movably disposed through the opening and sleeves the front-end portion for triggering a switch for control wireless connection between the computer terminal and the external device. The rear conductive foil is formed on the upper surface. The rear conductive foil is adjacent to the rear-end portion and coupled to the ground circuitry. The metal casing is connected to the upper cover and sleeves the rear-end portion. The metal casing is bent downward to form a contact sheet corresponding to the rear conductive foil. The conductive member is disposed on the rear conductive foil and abutting against the contact sheet. An electrostatic discharge conducted to the ground circuitry is conducted to the computer terminal via the rear conductive foil, the conductive member and the metal casing.
These and other objectives of the present invention will no doubt become obvious to those of ordinary skill in the art after reading the following detailed description of the preferred embodiment that is illustrated in the various figures and drawings.
Please refer to
More detailed description for the anti-electrostatic discharge design of the universal serial bus device 10 is provided as follows. As shown in
Via the aforesaid design, if an electrostatic discharge enters the universal serial bus device 10 from the opening 30 of the upper cover 16 (for example, an electrostatic discharge E1 as shown in
To be noted, for improving the anti-electrostatic discharge ability of a bottom of the universal serial bus device, the present invention could further adopt a bottom conductive foil design. For example, as shown in
In practical application, the present invention could adopt the anti-electrostatic discharge design that the circuit board is grounded to the computer terminal. For example, please refer to
Furthermore, even if there is an electrostatic discharge entering from a top of the universal serial bus device 10, the universal serial bus device 10 can still generate the anti-electrostatic discharge effect via the aforesaid design in which the switch 20 has the metal cover 21 and is soldered to the solder point 18 to be coupled to the ground circuitry 28. For example, as shown in
It should be mentioned that the present invention could adopt a covering structural design for preventing an electrostatic discharge from being conducted to an antenna on the front-end portion directly. For example, as shown in
The solder point grounding design, the rear conductive foil design, and the antenna covering design mentioned in the aforesaid embodiments can be implemented independently or mutually applied to each other, so as to improve the design flexibility of the universal serial bus device of the present invention in electrostatic discharge protection. For example, in the embodiment that the solder point grounding design and the rear conductive foil design are omitted, the universal serial bus device of the present invention could only adopt the antenna covering design to prevent the electrostatic discharge from being conducted to the antenna directly. As for other derived embodiments (e.g., the embodiment that the solder point grounding design or the rear conductive foil design is implemented independently and the embodiment that only the solder point grounding design and the antenna covering design are adopted), the related description could be reasoned by analogy and omitted herein.
Those skilled in the art will readily observe that numerous modifications and alterations of the device and method may be made while retaining the teachings of the invention. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims.
Number | Date | Country | Kind |
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112116758 | May 2023 | TW | national |
This application claims the benefit of U.S. Provisional Application No. 63/342,634, filed on May 17, 2022. The content of the application is incorporated herein by reference.
Number | Date | Country | |
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63342634 | May 2022 | US |