COMMUNICATION DEVICE

• US 20120165083A1
• Filed: 09/17/2009
• Published: 06/28/2012
• Est. Priority Date: 09/17/2009
• Status: Active Grant

• Current Assignee: Hytera Communications Corp. Ltd.
• Original Assignee: Hytera Communications Corp. Ltd.
• Inventors: Gong, Yigang
• Granted Patent: US 8,750,950 B2
• Time in Patent Office: Days
• US Class Current: 455/575.8
• CPC Class Codes: H04B 2001/3894 Waterproofing of transmission device
• CPC Class Codes: H04M 1/0277 for a printed circuit board assembly
• CPC Class Codes: H04M 1/03 Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
• CPC Class Codes: H04M 1/18 Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment H04M1/19 takes precedence
• CPC Class Codes: H04M 1/23 Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof by improving visibility H04M1/22

Abstract

A communication device includes an upper housing and a bottom housing connected to each other, a master Printed Circuit Board (PCB) for realizing a communication function, a speaker and a keypad assembly. The master PCB board is arranged on the bottom housing, wherein the upper housing includes a front housing and a front cover, the keypad assembly is arranged between the front housing and the front cover; the speaker is arranged under the front housing, the keypad assembly is connected to the master PCB board by a flexible circuit board which passes through the front housing; voice spreading holes connecting to the front cavity of the speaker are correspondingly arranged on the front cover, the keypad assembly and the front housing; the joints among the front housing, the keypad assembly, the front cover and the speaker are waterproof.

Claims

1. A communication device comprising an upper housing and a lower housing connected to each other, a master Printed Circuit Board (PCB) for realizing a communication function, a speaker (600) and a keypad assembly, the master PCB being arranged on the lower housing, characterized in that the upper housing comprises a front housing (500) and a front cover (200), the keypad assembly is arranged between the front housing (500) and the front cover (200);

the speaker (600) is arranged under the front housing (500), the keypad assembly is connected to the master PCB by a flexible circuit board (303) passing through the front housing (500);

a voice spreading hole (201) connecting to a front cavity of the speaker is correspondingly arranged on the front cover (200), the keypad assembly and the front housing (500);

the joints among the front housing (500), the keypad assembly, the front cover (200) and the speaker (600) are sealed.

2. The communication device according to claim 1, wherein a water guiding groove (503) is provided on the front housing (500), the water guiding groove (503) has the leading end connected to the front cavity of the speaker (600) and the trailing end connected to the joint between the upper housing and the lower housing, which is used to guide out the water permeating into the front cavity of the speaker (600) under gravity.

3. The communication device according to claim 1, wherein the keypad assembly comprises a keypad (301) and a keypad PCB (302), a waterproof layer is provided between the keypad (301) and the keypad PCB (302), and adhesive is provided between the keypad (301), the keypad assembly (302) and the waterproof layer to seal.

4. The communication device according to claim 3, wherein a voice transmission hole (502) is provided on an area of the front housing (500) and the keypad PCB (302) that are corresponding to the digital character input keypad area for making the voice from the speaker form a backflow under the keypad in order to prevent the formation of echo.

5. The communication device according to claim 1, wherein a function option keypad area and a digital character input keypad area are provided on the front cover (200), the voice spreading hole (201) on the front cover (200) is provided between the function option keypad area and the digital character input keypad area, and the voice spreading holes on the front housing (500) and the keypad assembly are provided at a position corresponding to the voice spreading hole on the front cover (200).

6. The communication device according to claim 3, wherein the waterproof layer includes an adhesive film (402) and a mesh fabric (401), the adhesive film (402) is adhered to the keypad PCB (302) and the mesh fabric (401) is provided between the adhesive film (402) and the keypad (301).