CN1905379B - Mobile terminal with helical antenna - Google Patents

Abstract

The invention relates to mobile terminals with helical antennas. The present invention is characterized by comprising the following parts: a terminal body; a printed circuit board, which is located in the terminal body; an antenna supporting member, which is combined with the terminal body and the printed circuit board, and can be removed; the antenna, which One end is combined with the antenna support member in a spiral manner, and the other end is exposed outside the terminal body; the antenna support member includes: a plate-shaped main body; a joint rib, located on one side of the main body and perpendicular to the main body The board surface of the part is extended, combined in the convex hole formed on the printed circuit board and can be removed; the insertion head can be inserted into the concave groove formed on the rear shell of the terminal body; screw combination part, which is formed on the plate surface of the insertion head, for the helical coupling of the antenna. According to the effect of the present invention, the antenna can be fixed at a desired position without shaking, thereby preventing the interruption of calls, which is a problem of market quality, from occurring.

Description

Mobile terminal with helical antenna

technical field

The present invention relates to a mobile terminal with a helical antenna, and more specifically, to a method for fixing the antenna at a desired position without shaking, thereby preventing call interruption (disconnection or dropped line), etc., which is a problem of market quality. mobile terminal with a helical antenna.

Background technique

Recently, mobile terminals used by men, women and children anytime and anywhere can be classified into cover type, flip type, and slide type mobile terminals according to their appearance, but all have antennas as described below.

An antenna is a device that sends electromagnetic waves into the air or receives electromagnetic waves from the air for sending and receiving signals. The basic principles are the same regardless of the transmitting or receiving antenna. However, there are various shapes depending on the frequency (wavelength) of use. In order for the antenna to work efficiently, it is necessary to resonate with the frequency at which the antenna is used.

On the other hand, the antenna attached to a mobile terminal etc. is a so-called vertical antenna called a coaxial antenna or a sleeve (sleeve) antenna, which is directly attached to the terminal body, but may be attached to the terminal in some cases. On the printed circuit board (PCB) inside the fuselage. As far as the latter is concerned, since the antenna cannot be directly installed on the printed circuit board (PCB), it is necessary to first assemble an additional support member that can support the antenna on the rear case of the terminal body, then insert the antenna, and then assemble the printed circuit board in sequence. board (PCB) and front case.

However, in the above prior art, due to the relatively thin thickness of the supporting member (for example, 0.15 mm), when the supporting member is assembled on the rear case, the supporting member is deformed, twisted, or misaligned, and the antenna cannot be assembled. In the desired position, there is a disadvantage of the antenna shaking (moving). In addition, there are relatively many single-product defects of support members, and the contact with the printed circuit board (PCB) is separated, causing problems such as disconnection (disconnection or dropout) of calls, which is a persistent quality problem in the market.

Contents of the invention

An object of the present invention is to provide a mobile terminal with a helical antenna, which can be fixed at a desired position without wobbling, thereby preventing call interruption (disconnection or dropout), which is a quality problem in the market, from occurring.

The above objects can be achieved by a mobile terminal with a helical antenna comprising the following parts: a terminal body, which has a front case and a rear case combined with each other at the front and rear; a printed circuit board (PCB), which is located on the terminal body Middle; the antenna support member, which is combined with the terminal body and the printed circuit board, and can be removed; the antenna, one end of which is combined with the antenna support member in a spiral manner, and the other end is exposed outside the terminal body. The above-mentioned antenna supporting member includes the following parts: a plate-shaped main body; a joint rib, which has at least one, is located on one side of the above-mentioned main body and extends perpendicular to the board surface of the above-mentioned main body, and is combined with the above-mentioned printed circuit The convex hole formed on the board (PCB) can be removed; the insertion head can be inserted into the concave groove formed on the above-mentioned rear shell; the spiral joint is formed on the board surface of the above-mentioned insertion head, For the above-mentioned antenna helical combination.

Wherein, the above-mentioned printed circuit board is partly combined with the above-mentioned rear case.

A second through hole is formed on the board surface of the above-mentioned main body, and the second through hole communicates with the first through hole formed on the board surface of the above-mentioned printed circuit board (PCB); the first and second through holes are used as A pathway linking fixed means.

There are two above-mentioned combining ribs.

The above-mentioned main body part and the above-mentioned insertion head part are connected to each other through a stepped connection part.

The above-mentioned main body, the above-mentioned coupling rib, the above-mentioned insertion head and the above-mentioned stepped connecting portion are preferably integrally injection-molded by a single material.

According to the present invention, the antenna can be fixed at a desired position without shaking, thereby preventing call interruption (disconnection or dropout) and the like, which is a chronic quality problem in the market, from occurring.

Description of drawings

Fig. 1 is the front view of the mobile terminal with helical antenna of the present invention;

Figure 2 is an enlarged oblique view of the main part of the rear case where the antenna is installed;

Figure 3 is a perspective view of the antenna;

Fig. 4 is a perspective view of an antenna support member;

5 is a schematic cross-sectional view of a state in which an antenna supporting member and an antenna are combined with a main part of a rear case.

Among them, reference signs:

10-Mobile terminal

12-terminal body 12a-input key

12b-Transmission Department

14-Flip Cover 14a-Display

14b-Receiving part 16-Hinge

18-Rear shell 19-Depression groove

20-Printed circuit board (PCB) 21-The first through hole

22, 23-1st and 2nd convex hole

25-Antenna 26-Shaft Diameter

27-Helix part 30-Antenna support member

31-Main part 33-Second through hole

34, 35-the 1st and 2nd combined ribs 36-insert into the head

37-Spiral joint 38-Step joint

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a front view of a mobile terminal with a helical antenna of the present invention. As shown in the figure, the mobile terminal 10 of the present invention has the following parts: a terminal body 12, a flip 14 that opens or closes the front of the terminal body 12, and is located between the terminal body 12 and the flip 14 and makes the flip 14 opposite. The hinge 16 rotates on the terminal body 12 .

On the inner surface of the terminal body 12, a plurality of input keys 12a are provided. A speaking section 12b for transmitting a user's voice to a counterpart or recording a voice message is formed at a lower portion of the input key 12a. There are multiple adjustment keys (not shown in the figure) on one side of the terminal body 12 . These adjustment keys are different from the input keys 12a for inputting telephone numbers, and they are used to adjust the receiving volume or to adjust the key tone.

There is a display screen 14a on the inner surface of the flip cover 14 that can confirm the phone number, battery charging status, whether there is vibration, alarm status signs, etc. The display screen 14a employs a so-called LCD (Liquid Crystal Display). A receiver 14b for receiving a voice from a partner is formed on the upper portion of the display 14a.

Although the mobile terminal 10 shown in the accompanying drawings is a mobile terminal 10 with a display screen 14a on the inside of the flip cover 14 and an input key 12a on the terminal body 12, the display screen 14a and the input key 12a are on the same terminal body 12. Mobile terminals (not shown) on the Internet are also common. Regardless of the position of the display screen 14a and the input key 12a, it has no influence on the idea of the present invention.

A battery pack is combined on the back of the terminal body 12, and the battery pack can be removed, which is not shown in the drawings. The battery pack usually uses a rechargeable battery pack. According to its type, lead-acid (Lead-Acid) battery, nickel-cadmium (Ni-Cd) battery, nickel-metal hydride (Ni-Mh) battery, lithium-ion battery (Lithium-ion), lithium A polymer battery (Polymer) etc. can be applicable.

On the other hand, the terminal body 12 has a front shell (not shown in the figure) and a rear shell 18 that are combined with each other at the front and rear. Inside the front case, a keypad forming the input keys 12a and the like are built in, and a printed circuit board (PCB) 20 for transmitting electrical signals to the mobile terminal 10 is provided on the inside of the rear case 18 .

A printed circuit board (PCB) 20 is fixed to the inner surface of the rear case 18 by another fixing means (bolts, etc.). At this time, the printed circuit board (PCB) 20 almost blocks the front of the rear case 18 except for the concave groove 19 formed on one side of the rear case 18 . A first through hole 21 is formed on the surface of such a printed circuit board (PCB) 20 , and two first and second rib holes 22 and 23 are formed around the first through hole 21 . The first and second ribbed holes 22, 23 are respectively rectangular and arranged perpendicularly to each other. The concave groove 19 formed on the rear case 18 is formed between two walls (Rib).

As shown in FIG. 3, an antenna 25 is mounted in the area of the recessed groove 19 formed on one side of the rear case 18. As shown in FIG. The antenna 25 is a vertical antenna, and is used as means for sending and receiving electromagnetic waves into the air or receiving electromagnetic waves from the air. A spiral portion 27 is formed at the lower end of such antenna 25 , and the diameter of the spiral portion 27 is smaller than that of the shaft diameter portion 26 . Except for a portion of the shaft diameter portion 26 and the helical portion 27 , the rest of the antenna 25 is exposed outside the rear case 18 to receive and transmit radio waves.

As shown in FIG. 4 , in the present mobile terminal 10 , an antenna supporting member 30 is further provided as means for firmly fixing the antenna 25 at a corresponding position. The antenna support member 30 has a main body 31 , first and second coupling ribs 34 , 35 , an insertion head 36 , and a stepped connection portion 38 .

The main body portion 31 having a relatively thin plate shape is almost rectangular. A second through hole 33 is formed on the plate surface of the main body portion 31 , and the second through hole 33 communicates with the first through hole 21 of the printed circuit board (PCB) 20 . The first and second through-holes 21, 33 will be used later as passages for connecting another fixing means.

The first and second joint ribs 34, 35 are respectively located on the side of the main body 31, extend laterally on the board surface of the main body 31, and are respectively inserted into the first and second ribs of the above-mentioned printed circuit board (PCB) 20 when combined. In holes 22,23. The first and second coupling ribs 34, 35 are respectively inserted into the first and second rib holes 22, 23 at different positions, so that the antenna supporting member 30 can overcome disadvantages such as twisting or misalignment at corresponding positions. That is, at positions perpendicular to each other, the first and second coupling ribs 34, 35 are inserted into the first and second rib holes 22, 23, respectively, and do not move in any direction on the virtual XY plane. Therefore, its bond is very strong.

The insertion head portion 36 is connected to the main body portion 31 through a stepped connection portion 38 . The insertion head 36 is relatively larger than the first and second coupling ribs 34 , 35 , and is inserted into the recessed groove 19 of the rear case 18 . Therefore, the thickness of the insertion head 36 should be at least the same as or smaller than that of the concave groove 19 . A screw connection portion 37 to which the screw portion 27 of the antenna 25 is screwed is formed on a plate surface of the insertion head 36 .

On the other hand, the main body 31 , the first and second coupling ribs 34 , 35 , the insertion head 36 and the stepped connecting portion 38 forming the antenna supporting member 30 are integrally injection molded from a single material. In this case, the thickness of each part may be about 1 mm. If its thickness is 0.8mm, since it is relatively thicker than before, with this structure, it is possible to prevent the antenna supporting member 30 from twisting.

The procedure for assembling the antenna 25 with such a configuration will be described below.

First, the antenna support member 30 as shown in FIG. 4 is reversed, and it is placed on the main part of the rear case 18 as shown in FIG. 3 . Then, the insertion head 36 of the antenna support member 30 is inserted into the recessed groove 19 of the rear case 18, and the first and second coupling ribs 34, 35 of the antenna support member 30 are inserted into the first joint of the printed circuit board (PCB) 20 respectively. The first and second ribbed holes 22 and 23 are connected to the antenna supporting member 30 .

Then, screw the helical part 27 of the antenna 25 into the helical joint part 37 of the insertion head 36 of the antenna supporting member 30, as shown in FIG. 5 , the antenna 25 is assembled.

With such an assembly structure, the antenna 25 can be fixed at a desired position without shaking, and it is possible to prevent call interruption (disconnection or dropout), which is a quality problem in the market, from occurring.

The present invention has been described in detail above with reference to the drawings, but the present invention is not limited thereto.

The above embodiments are directed to the flip-type mobile terminal 10, but the idea of the present invention can also be applied to a cover-type or slide-type mobile terminal.

As described above, the present invention has the effect that the antenna can be fixed at a desired position without shaking, thereby preventing call interruption (disconnection or dropout), which is a problem of market quality, from occurring.

Certainly, the present invention also can have other multiple embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding Changes and deformations should belong to the scope of protection of the appended claims of the present invention.

Claims (6)

1. A mobile terminal with a helical antenna, characterized in that it comprises: a terminal body, which has a front shell and a rear shell combined with each other at the front and rear; a printed circuit board, located in the terminal body; An antenna supporting member, which is combined with the terminal body and the printed circuit board, and can be removed; An antenna, one end of which is helically combined with the antenna support member, and the other end exposed outside the terminal body; The antenna support member includes: a plate-shaped main body; Combining ribs, which have at least one, located on one side of the main body and extending perpendicular to the board surface of the main body, combined in the rib holes formed on the printed circuit board and can be removed; an insertion head, which can be inserted into a recessed groove formed on said rear shell; A spiral joint part is formed on the plate surface of the insertion head for the spiral joint of the antenna. 2. The mobile terminal with a helical antenna according to claim 1, wherein the printed circuit board is partially combined with the rear case. 3. The mobile terminal with helical antenna according to claim 1, characterized in that: a second through hole is formed on the board surface of the main body, and the second through hole is connected with the printed circuit board. The first through-holes formed on the board are in communication; the first and second through-holes are used as passages for connecting the fixing means. 4. The mobile terminal with a helical antenna according to claim 1, wherein there are two combining ribs. 5. The mobile terminal with a helical antenna according to claim 1, characterized in that: the main body and the insertion head are connected to each other through a stepped connection. 6. The mobile terminal with a helical antenna according to claim 5, characterized in that: the main body, the joint rib, the insertion head and the above-mentioned stepped connection part are integrally injection-molded with a single material .

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