# US 2013/0153386 A1 · Electronic device with keypad assembly

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- Number: US 2013/0153386 A1
- Document ID: US20130153386A1
- Status: Published application
- Kind: A1
- Application number: 13/653,111
- Filed: 2012-10-16
- Published: 2013-06-20
- Earliest claimed: 2011-12-17
- Inventors: GUO-DONG LI
- Web page: https://patentgrep.com/patent/US20130153386A1

## CPC

- H01H 13/83: characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
- H01H 2211/00: Spacers
- H01H 2219/062: Light conductor
- H01H: ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables H01B7/10; electrolytic self-interrupters H01G9/18; emergency protective circuit arrangements H02H; switching by electronic means without contact-making H03K17/00)

## Abstract

A keypad assembly is attached to a housing of an electronic device. The housing defines a plurality of key holes, the keypad assembly including an elastic sheet and a number of key caps. The elastic sheet includes a number of key bodies and a number of contacts formed at opposite surfaces thereof. The elastic sheet is positioned at a first side of the housing, and the key bodies extend through the key holes. The key caps are positioned at a second side of the housing, and are mounted on the key bodies.

## Claims

### Claim 1

A keypad assembly attached to a housing of an electronic device, the housing defining a plurality of key holes, the keypad assembly comprising:
an elastic sheet directly positioned at a first side of the housing, the housing including a plurality of key bodies and a plurality of contacts formed at opposite surfaces thereof, the key bodies extending through the key holes; and
a plurality of key caps directly positioned at a second side of the housing, and mounted on the key bodies.

### Claim 2 (depends on 1)

The keypad assembly as claimed in claim 1, wherein the housing is made of opaque material, and includes a main plate, a first end, a second end and two side portions, the main plate is substantially a flat plate, the second end and the two side portions are substantially coplanar with the main plate, the key caps are coplanar with the second end and the side portions.

### Claim 3 (depends on 2)

The keypad assembly as claimed in claim 2, wherein the key caps are made of plastic, and the elastic sheet is made of rubber.

### Claim 4 (depends on 1)

The keypad assembly as claimed in claim 1, wherein the key caps are adhered on the key bodies with ultraviolet glue.

### Claim 5

An electronic device comprising:
a housing defining a plurality of key holes;
a keypad assembly comprising:
an elastic sheet including a plurality of key bodies and a plurality of contacts formed at opposite surfaces thereof, the elastic sheet positioned at a first side of the housing, the key bodies extending through the key holes; and
a plurality of key caps positioned at a second side of the housing, and mounted on the key bodies.

### Claim 6 (depends on 5)

The electronic device as claimed in claim 5, wherein the housing is made of opaque material, and includes a main plate, a first end, a second end and two side portions, the main plate is substantially a flat plate, the second end and the two side portions are substantially coplanar with the main plate, the key caps are coplanar with the second end and the side portions.

### Claim 7 (depends on 6)

The electronic device as claimed in claim 6, wherein the key caps are made of plastic, and the elastic sheet is made of rubber.