WO2016019668A1

WO2016019668A1 - Handheld terminal of mobile satellite communication system

Info

Publication number: WO2016019668A1
Application number: PCT/CN2014/093211
Authority: WO
Inventors: 张波
Original assignee: 成都福兰特电子技术有限公司
Priority date: 2014-08-05
Filing date: 2014-12-08
Publication date: 2016-02-11
Also published as: CN204031165U

Abstract

Disclosed by the present utility model is a handheld terminal of a mobile satellite communication system. A radio-frequency shielding cover (3) is provided between a baseband board (1) and a radio-frequency board (2); a back cover is provided with a back clip (4) thereon, and the back clip (4) is fixedly installed on the back cover via a movable shaft (5); the present invention is provided with a gas bag assembly consisting of at least one gas generator (6) and a contraction gas bag (7) provided at an outer edge of a handheld terminal; the cross section of a sound hole is provided with a metal dustproof net (10) thereon; a motherboard (11) is provided with an aerial body (12) and a feed source (13) thereon; and the metal dustproof net (10) and the feed source (13) form a radio-frequency connection. The present utility model adds the radio-frequency shielding cover between the baseband board and the radio-frequency board, thus effectively eliminating mutual interference between the baseband board and the radio-frequency board, and improving the working stability of the handheld terminal; and the metal dustproof net is connected to an aerial feed source to form a radio-frequency connection, thus improving the flexibility and degree of freedom of the aerial wiring of the handheld terminal.

Description

Mobile satellite communication system handheld terminal

Technical field

The utility model relates to a communication handheld terminal, in particular to a mobile satellite communication system handheld terminal.

Background technique

At present, in the development of satellite mobile communication system stage, due to the breakthrough of the key technologies of serialized terminal equipment, the mobile satellite communication system handheld station has realized the interconnection and intercommunication of large systems, completed the test and verification of the system air interface protocol, and has the right The extended function of the subsequent verification of the new technology system. However, the traditional mobile communication handheld terminals have the following problems and deficiencies:

(1) The mutual interference between the baseband board and the radio frequency board cannot be effectively eliminated, and the working stability of the handheld terminal is poor;

(2) The back clip is not installed, and various fixing methods of the handheld terminal cannot be realized, and it is not convenient to carry and use;

(3) When the handheld terminal is dropped, it is easy to be damaged. When it falls into the water, it sinks into the bottom of the water quickly. The moisture enters the terminal of the handheld terminal, which easily leads to short circuit and damage of the internal circuit. The existing handheld terminal is basically discarded when it falls into the water;

(4) The dustproof net of the side sound hole of the existing hand-held terminal seriously damages the lower end surface of the plastic middle frame, so that the wiring area of the antenna radiator is occupied, and the degree of freedom of the antenna wiring is limited.

Utility model content

The utility model aims to overcome the deficiencies of the prior art and provide a novel mobile satellite communication system handheld terminal, and an RF shielding cover is added between the baseband board and the radio frequency board to effectively eliminate mutual interference between the baseband board and the radio frequency board. Improve the working stability of the handheld terminal; add a back clip and a back clip Disassembly, realizes a variety of fixed ways of the handheld terminal, and is convenient to carry and use; the airbag is added to the outer edge of the handheld terminal to protect the handheld terminal; and the flexibility and freedom of the antenna of the handheld terminal are improved.

The object of the present invention is achieved by the following technical solutions: a mobile satellite communication system handheld terminal, comprising a baseband board fixedly mounted on the front case and a radio frequency board fixedly mounted on the rear case, the baseband board and the radio frequency board An RF shield is provided between the two;

The back shell is further provided with a back clip, and the back clip is fixedly mounted on the rear shell by a movable shaft. The back clip is composed of an upper clamp plate and a lower clamp plate, and one end of the upper clamp plate near the movable shaft is connected to the lower clamp plate by a clamping mechanism. The other ends of the upper and lower jaws are provided with clamping protrusions;

The hand-held terminal is provided with an airbag module, the airbag assembly is composed of at least one gas generator disposed in a cavity formed between the front casing and the rear casing, and a contraction airbag disposed at an outer edge of the hand-held terminal, and each gas generator passes through The snorkel is in communication with the deflation balloon;

The handheld terminal further includes an antenna and a main board. The antenna is disposed in the middle frame of the handheld terminal, and a metal dustproof net is disposed on the sound hole of the middle frame, and the antenna body and the feed connected to the antenna body are disposed on the main board. The metal dust filter forms a radio frequency connection with the feed.

The clamping mechanism is a torsion spring, which has low cost, large recovery force and good clamping effect.

The upper splint is provided with an anti-slip protrusion at one end of the clamping mechanism, which is more convenient and convenient for the clamping operation.

The clamping protrusion is a soft rubber protrusion, which increases the friction coefficient when clamping, and the clamping is more stable.

The movable shaft is mounted on the rear casing through a detachable connecting mechanism, and the back clip can be removed at ordinary times without affecting the normal use of the handheld terminal.

The beneficial effects of the utility model are:

(1) An RF shield is added between the baseband board and the RF board to effectively eliminate the baseband board and shoot The mutual interference between the frequency plates improves the working stability of the handheld terminal;

(2) The back clip is added to realize various fixing methods of the handheld terminal, which is more convenient to carry and use;

(3) The back clip can be detached, and the back clip can be clipped only on the fashion of the hand-held terminal, and the back clip can be removed normally, without affecting the appearance and normal use of the handheld terminal;

(4) The airbag is added to the outer edge of the hand-held terminal. When an emergency (such as landing, falling water, etc.) occurs, the handheld terminal can be protected and the service life of the handheld terminal can be extended.

(5) After the metal dust-proof net is connected to the antenna feed to form a radio frequency connection, the metal dust-proof net becomes the radiator of the antenna and becomes a part of the antenna, so that the antenna trace occupies the area where the original air filter is located, which can effectively solve the problem. The dustproof net of the sound hole destroys the problem of the antenna routing area, and improves the flexibility and freedom of the handheld terminal antenna routing;

(6) The metal dustproof net helps to strengthen the structural strength of the air filter and improve the audio reliability of the handheld terminal.

DRAWINGS

1 is a schematic view showing a structure of a radio frequency shielding cover of the present invention;

Figure 2 is a schematic view showing the structure of the back clip of the present invention;

Figure 3 is a schematic structural view of the airbag module of the present invention;

4 is a schematic structural view of an antenna device of the present invention;

In the figure, 1: baseband board, 2: radio frequency board, 3: radio frequency shield, 4: back clip, 5: movable shaft, 6: gas generator, 7: shrink airbag, 8: vent pipe, 9: middle frame, 10: metal dustproof net, 11: main board, 12: antenna body, 13: feed, 4-1: upper splint, 4-2: lower splint, 4-3: clamping mechanism, 4-4: clamping convex From 4-5: non-slip projections.

detailed description

The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following.

As shown in FIG. 1 , the mobile satellite communication system handheld terminal includes a baseband board 1 fixedly mounted on the front case and a radio frequency board 2 fixedly mounted on the rear case, and a radio frequency is disposed between the baseband board 1 and the radio frequency board 2 Shield 3.

As shown in FIG. 2, the back shell is further provided with a back clip 4, and the back clip 4 is fixedly mounted on the rear shell through the movable shaft 5. In this embodiment, the movable shaft 5 is mounted on the rear shell through a detachable connecting mechanism. It is possible to remove the back clip 4 only when it is necessary to fix the handheld terminal, and the back clip 4 can be removed normally, without affecting the appearance and normal use of the handheld terminal.

The back clip 4 is composed of an upper clamping plate 4-1 and a lower clamping plate 4-2. One end of the upper clamping plate 4-1 near the movable shaft 5 is connected to the lower clamping plate 4-2 through the clamping mechanism 4-3. The holding mechanism 4-3 adopts a torsion spring, which has low cost, large recovery force and good clamping effect.

The other ends of the upper clamping plate 4-1 and the lower clamping plate 4-2 are provided with clamping protrusions 4-4. In the embodiment, the clamping protrusions 4-4 are soft rubber protrusions, which can increase the clamping time. The coefficient of friction makes the clamping more stable.

As a further improvement of the present invention, the upper clamping plate 4-1 is provided with an anti-slip protrusion 4-5 near one end of the clamping mechanism 4-3, which is more convenient and convenient for the clamping operation.

As shown in FIG. 3, the hand-held terminal is provided with an airbag module, which is composed of four gas generators 6 disposed in a cavity formed between the front and rear casings, and a contracting airbag 7 disposed on the outer edge of the hand-held terminal. In the composition, each of the gas generators 6 communicates with the contraction airbag 7 through the vent pipe 8, respectively.

As shown in FIG. 4 , the handheld terminal further includes an antenna and a main board 11 . The antenna is disposed in the middle frame 9 of the handheld terminal. The metal dustproof net 10 is disposed on the sound hole of the middle frame 9 , and the main board 11 is disposed on the main board 11 . The antenna body 12 and the feed 13 connected to the antenna body 12 form a metal dust filter 10 and a feed 13 RF connection. The metal air filter 10 becomes the radiator of the antenna and becomes a part of the antenna. The antenna cable occupies the area where the original air filter is located, which can effectively solve the problem that the air filter of the sound hole breaks the antenna routing area and improves the problem. The flexibility and freedom of the handheld terminal antenna routing; in addition, the metal dust filter helps to enhance the structural strength of the air filter and improve the audio reliability of the handheld terminal.

The above is only a preferred embodiment of the present invention, and it should be understood that the present invention is not limited to the forms disclosed herein, and should not be construed as being excluded from other embodiments, but may be used in various other combinations, modifications, and environments. And can be modified by the above teachings or related art or knowledge within the scope of the teachings herein. The modifications and variations of the present invention are intended to be within the scope of the appended claims.

Claims

Mobile satellite communication system handheld terminal, characterized in that:

The baseband board (1) fixedly mounted on the front case and the radio frequency board (2) fixedly mounted on the rear case, and the radio frequency shielding cover (3) is disposed between the baseband board (1) and the radio frequency board (2) ;

The back shell is further provided with a back clip (4), and the back clip (4) is fixedly mounted on the rear shell through the movable shaft (5), and the back clip (4) is composed of the upper splint (4-1) and the lower splint (4-2) Composition, one end of the upper plate (4-1) near the movable shaft (5) is connected to the lower plate (4-2) by the clamping mechanism (4-3), the upper plate (4-1) and the lower plate The other end of the splint (4-2) is provided with a clamping protrusion (4-4);

The hand-held terminal is provided with an airbag module composed of at least one gas generator (6) disposed in a cavity formed between the front casing and the rear casing, and a contraction airbag (7) disposed at an outer edge of the hand-held terminal. Each gas generator (6) is connected to the contraction airbag (7) through a vent pipe (8);

The handheld terminal further includes an antenna and a main board (11). The antenna is disposed in the middle frame (9) of the handheld terminal, and the metal dustproof net (10) is disposed on the sound hole of the middle frame (9), and the main board (11) The antenna body (12) and the feed source (13) connected to the antenna body (12) are disposed, and the metal dustproof net (10) forms a radio frequency connection with the feed source (13).
The mobile satellite communication system handheld terminal according to claim 1, wherein said clamping mechanism (4-3) is a torsion spring.
The mobile satellite communication system handheld terminal according to claim 1, characterized in that: the upper clamping plate (4-1) is provided with an anti-slip projection (4-5) near one end of the clamping mechanism (4-3). .
The mobile satellite communication system handheld terminal according to claim 1, wherein said clamping protrusions (4-4) are soft rubber protrusions.
A mobile satellite communication system handheld terminal according to claim 1, wherein: The movable shaft (5) is mounted on the rear casing by a detachable connection mechanism.