WIRELESS KEYBOARD HAVING WATERPROOF MECHANISM

• US 20120050076A1
• Filed: 08/24/2010
• Published: 03/01/2012
• Est. Priority Date: 08/24/2010
• Status: Active Grant

• Current Assignee: Allen Ku
• Original Assignee: Allen Ku
• Inventors: KU, ALLEN
• Granted Patent: US 8,368,564 B2
• Time in Patent Office: Days
• US Class Current: 341/22
• CPC Class Codes: G06F 3/0219 Special purpose keyboards
• CPC Class Codes: G06F 3/0231 Cordless keyboards
• CPC Class Codes: H01H 13/86 characterised by the casing, e.g. sealed casings or casings reducible in size
• CPC Class Codes: H01H 2223/003 Membrane embracing all keys
• CPC Class Codes: H01H 2223/052 reductible in size, e.g. for transportation
• CPC Class Codes: H01H 9/0235 specially adapted for remote control, e.g. of audio or video apparatus

Abstract

A wireless keyboard having a water proof mechanism includes a signal processing module and a flexible keyboard connected to one side of the signal processing module. The signal processing module includes an upper casing, a lower casing located under the upper casing, a waterproof gasket located between peripheries of the upper casing and the lower casing, and a processing unit received between the upper casing and the lower casing to emit wireless signals to a computer host. The flexible keyboard includes an upper film, a lower film hermetically connected to the upper film, and a plurality of key units electrically connected to the processing unit, wherein one common side of the upper film and the lower film is sandwiched between the upper casing and the lower casing.

Claims

1. A wireless keyboard having a waterproof mechanism, including:

a signal processing module, comprising;

an upper casing;

a lower casing located below the upper casing;

a waterproof gasket located between peripheries of the upper casing and the lower casing; and

a processing unit received between the upper casing and the lower casing to emit wireless signals to a computer host; and

a flexible keyboard, connected to one side of the signal processing module and comprising;

an upper film;

a lower film hermetically connected to the upper film; and

a plurality of key units electrically connected to the processing unit, one common side of the upper film and the lower film being sandwiched between the upper casing and the lower casing.

2. The wireless keyboard having a waterproof mechanism according to claim 1, wherein the signal processing module further includes a signal checking key, the signal checking key comprises a keycap exposed to the upper casing, an elastic cover located below the keycap, and a micro-switch provided below the elastic cover.

3. The wireless keyboard having a waterproof mechanism according to claim 2, wherein the elastic cover has a waterproof frame protruding outwards and upwards from its bottom, the upper casing has a keyhole for allowing the keycap to be exposed to the outside and an extension wall extending downwards from an edge of the keyhole, the top edge of the waterproof frame is adhered to the bottom edge of the extension wall.

4. The wireless keyboard having a waterproof mechanism according to claim 3, wherein the elastic cover has a liquid trough formed inside the water frame.

5. The wireless keyboard having a waterproof mechanism according to claim 1, wherein the lower casing of the signal processing module includes a battery trough, a battery cover for covering the battery trough, and a second waterproof gasket provided on the battery cover.

6. The wireless keyboard having a waterproof mechanism according to claim 1, wherein the lower casing of the signal processing module includes a receiver-accommodating chamber, the receiver-accommodating chamber is formed on the bottom surface of the lower casing for accommodating a wireless receiver.

7. The wireless keyboard having a waterproof mechanism according to claim 1, further including a pair of side covers provided on both sides of the upper casing and the lower casing.

8. The wireless keyboard having a waterproof mechanism according to claim 7, wherein each of the pair of side covers is formed with a plurality of hooks, the upper casing and the lower casing are respectively formed with a plurality of locking grooves for allowing the hooks to be inserted therein.

9. The wireless keyboard having a waterproof mechanism according to claim 1, wherein the upper casing and the lower casing are formed with a plurality of hollow inner-threaded posts respectively, and the water gasket is formed with a plurality of hollow posts to correspond to the hollow inner-threaded posts.

10. The wireless keyboard having a waterproof mechanism according to claim 1, wherein the lower film of the flexible keyboard is formed with a first trough and the lower casing is formed with a second trough.

11. The wireless keyboard having a waterproof mechanism according to claim 10, wherein the flexible keyboard includes an electrical conductive film located between the upper film and the lower film, the electrical conductive film has a connecting end passing through the first trough and the second trough, the connecting end extends to the signal processing module and is electrically connected to the processing unit.

12. The wireless keyboard having a waterproof mechanism according to claim 11, wherein each of the upper film and the lower film has four sides, three of the four sides of the upper film and the lower film are hermetically connected to each other.

13. The wireless keyboard having a waterproof mechanism according to claim 11, wherein a pressing block protrudes from a bottom surface of the upper film to be engaged with the first trough, the pressing block of the upper film abuts against the connecting end.

14. The wireless keyboard having a waterproof mechanism according to claim 11, wherein the processing unit includes a circuit board and an electrical connector provided on a bottom surface of the circuit board, the connecting end of the electrical conductive film is inserted into the electrical connector.

15. The wireless keyboard having a waterproof mechanism according to claim 11, wherein each of the key units includes an electrical conductive circuit formed on the electrical conductive film, a cap portion protruding upwards from the upper film and located above the electrical conductive film, and a conductor provided on the bottom surface of the cap portion.