JP6904159B2 - Antenna mounting structure - Google Patents

Description

The present invention relates to an antenna mounting structure, particularly to an external antenna mounting structure that is mounted on a wireless terminal such as a mobile phone.

Conventionally, an antenna mounting structure that is externally mounted on a housing of a wireless terminal such as a mobile phone is known (see, for example, Patent Document 1). Patent Document 1 has an object of providing sufficient rigidity to protect the antenna cover against falling off when a large external force such as a drop impact force is inadvertently received, and improving assembly workability. An antenna mounting hole is formed in the antenna cover, and the base end portion of the antenna cover is fixed inside the mirror body with a "patent-proof structure (specifically, a clip)". As a result, the impact of dropping is not applied to the antenna cover, and the antenna cover can be fixed by inserting it into the mounting hole and rotating it, which facilitates assembly.

By the way, in recent years, it has been required to impart waterproofness to wireless terminals, particularly wireless terminals that are carried anywhere indoors or outdoors, such as mobile phones. In order to impart this waterproofness to the invention of Patent Document 1, an O-ring for waterproofing is attached around the antenna mounting hole to which the antenna cover is attached, or an O-ring is attached to the antenna cover side to the antenna mounting hole. Need to be installed. However, in the antenna mounting structure as in Patent Document 1, since the antenna cover is rotated and mounted, there is a problem that a gap is formed between the O-ring and the antenna cover by the rotational operation, and the waterproof effect may be impaired. there were.

Japanese Unexamined Patent Publication No. 10-173420

The present invention has been made in view of such a problem, and provides an antenna mounting structure that facilitates mounting of an antenna without impairing the waterproof function.

In order to solve the above-mentioned problems, the present invention is grasped by the following aspects.
(1) An aspect according to the present invention is an antenna mounting structure, from the inside to the outside of the housing through a housing, a fitting hole provided on a side surface of the housing, and the fitting hole. An antenna extending over the antenna, an antenna cover having a base end portion attached to the fitting hole to cover the inner portion of the antenna and a cover portion for protecting the outer portion of the antenna, and the inside of the housing. It is characterized by including a regulating member for simultaneously tightening the inner portion of the antenna and the base end portion of the antenna cover.

(2) In the configuration described in (1) above, the restricting member has a pair of holding portions and an engaging portion protruding from substantially the center of the pair of holding portions, and the pair of holding portions is said to be the antenna cover. A flange portion is sandwiched around at least a part of the base end portion, and the engagement portion is formed in the first engagement hole formed in the flange portion and the second engagement portion formed in the inner portion of the antenna. It is engaged in the entry hole.

(3) In the configuration described in (2) above, the housing has a positioning protrusion inside the fitting hole, and the flange portion of the antenna cover has a notch at a position corresponding to the positioning protrusion. The antenna cover is attached to the fitting hole so as to have the notch along the positioning projection.

(4) In the configuration according to any one of (1) to (3) above, an O-ring attached to the outer peripheral surface of the base end portion is further provided.

According to the present invention, it is possible to provide an antenna mounting structure that facilitates mounting of an antenna without impairing the waterproof function.

It is a front view which shows by removing the front side cover of the housing in the wireless terminal which concerns on embodiment of this invention. In FIG. 1, the substrate and the antenna are extracted and shown from the front. FIG. 1A shows the entire wireless terminal, and FIG. 1B shows an enlarged view of the antenna-related portion. The substrate and the antenna are extracted from FIG. 1 and shown from the back surface. FIG. 1A shows the entire wireless terminal, and FIG. 1B shows an enlarged view of the antenna-related portion. It is a figure which shows the cross section of line AA of FIG. 1, (a) shows the whole wireless terminal, (b) shows the enlarged view of the antenna-related part, respectively. FIG. 5 is a perspective view showing a component related to an antenna mounting structure disassembled in a state before assembly by removing the substrate from FIG. 1. FIG. 5 is a partial cross-sectional view showing an enlarged mounting structure of the antenna after assembly. It is a perspective view which shows the regulation member in an enlarged manner.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, but in each figure, the same reference numerals indicate the same or corresponding parts. Further, the present invention is not limited to these embodiments as will be clear from the following description, and various modifications can be made by those skilled in the art within the scope of the gist of the invention.

First, with reference to FIGS. 1 to 4, the overall configuration of a wireless terminal such as a mobile phone to which the mounting structure of the antenna 2 according to the present embodiment is applied will be described. As shown in FIG. 1, the wireless terminal includes a housing 1 (here, since the internal structure of the wireless terminal is shown, the front side housing is omitted and only the back side housing is shown). The antenna 2 is provided on the side surface of the housing 1 (here, the case of the upper side surface 1a is shown), and the antenna cover 3 for protecting the antenna 2 is provided. A board 11 is provided inside the wireless terminal, and various electronic components (not shown) are mounted on the board 11.

The arrangement position of the antenna 2 is not limited to the one shown in the drawing, and may be arranged at an appropriate position according to the form of the wireless terminal. For example, in the case of a foldable wireless terminal, it can be provided in the vicinity of a foldable portion formed substantially in the center.

A fitting hole 4 is provided in the upper side surface 1a of the housing 1, and the antenna 2 extends from the inside to the outside of the housing 1 through the fitting hole 4. As shown in FIGS. 2 (a) and 2 (b), and FIGS. 3 (a) and 3 (b), the antenna 2 is formed in an L shape composed of a long piece 21 and a short piece 22. It is fixed to the housing 1 via a mounting hole 22a at the end of the short piece 22. As described above, the long piece 21 extends from the inside to the outside of the housing 1 through the fitting hole 4. The antenna 2 does not necessarily have to be formed in an L shape, and may be an I shape having only a long piece 21.

The antenna cover 3 is composed of a cover portion 31 that protects an outer portion of the long piece 21 of the antenna 2 that extends to the outside of the housing 1, and a base end portion 32 that also covers a part of the inner portion. The base end portion 32 is inserted into the inside of the housing 1 via the fitting hole 4, but an O-ring 5 is attached to the outer peripheral surface of the base end portion 32, and the base end portion 32 and the fitting hole are fitted. Ensure waterproofness between 4. Further, a regulating member 6 is attached to the inside of the O-ring 5 of the base end portion 32, and the base end portion 32 of the antenna cover 3 and the long piece 21 of the antenna 2 are fastened together. These cross-sectional structures are as shown in FIGS. 4 (a) and 4 (b) showing the cross-sectional views taken along the line AA of FIG. 1, but these points will be described in detail later.

Although the overall configuration of the wireless terminal has been described above, the mounting structure of the antenna 2 will be described in more detail with reference to FIGS. 5 to 7.

FIG. 5 is a perspective view showing the components related to the mounting structure of the antenna 2 disassembled in a state before assembly except for the substrate 11, and FIG. 6 is an enlarged view of the mounting structure of the antenna 2 after assembly. It is a partial cross-sectional view shown. As shown in FIGS. 5 and 6, the antenna 2 forms an L-shape composed of a long piece 21 and a short piece 22, and is bored at an end portion (right end in the drawing) of the short piece 22. It is fixed to the boss 22b projecting from the housing 1 via the mounting hole 22a by the screw 22c.

The long piece 21 of the antenna 2 extends from the inside to the outside of the housing 1 through the fitting hole 4 provided in the upper side surface 1a of the housing 1. A second engagement hole 21a is bored in the long piece 21, and the second engagement hole 21a is formed inside the fitting hole 4 when the long piece 21 is attached to the housing 1. It is provided at a position facing the positioning protrusion 41 formed in.

The antenna cover 3 has a cover portion 31 and a base end portion 32, the cover portion 31 protects the long piece 21 of the antenna 2 on the outside of the housing 1, and the base end portion 32 is from the fitting hole 4. The long piece 21 of the antenna 2 is covered inside the housing 1. Here, a flange portion 33 that expands in the radial direction is formed at the inner end portion of the base end portion 32.

The flange portion 33 is provided with a first engagement hole 33a on one side thereof, and a notch 33b is provided on the opposite side in the radial direction thereof. In other words, the flange portion 33 is provided around at least a part of the inner end portion of the base end portion 32. The first engagement hole 33a is provided at a position corresponding to the second engagement hole 21a of the antenna 2, and the notch 33b is provided at a position corresponding to the positioning projection 41 of the housing 1. The O-ring 5 is attached to a base end portion 32 having a diameter smaller than that of the flange portion 33.

The regulating member 6 has a pair of holding portions 61 and an engaging portion 62 projecting from substantially the center of the pair of holding portions 61. The pair of sandwiching portions 61 sandwich the flange portions 33 of the antenna cover 3 from both sides, and the engaging portions 62 are bored in the first engaging hole 33a bored in the flange portion 33 and the long piece 21 of the antenna 2. It is engaged in the second engagement hole 21a.

As shown in FIG. 6, the first engagement hole 33a of the flange portion 33 of the antenna cover 3, the second engagement hole 21a of the long piece 21 of the antenna 2, the notch 33b of the flange portion 33, and the positioning protrusion of the housing 1. The 41 are arranged substantially in a straight line, and the engaging portion 62 of the regulating member 6 is located on the center line thereof. Then, a pair of sandwiching portions 61 of the regulating member 6 sandwich the flange portions 33 from both sides.

As shown in the enlarged view of FIG. 7, the regulating member 6 is preferably configured in an M shape. Here, as the regulating member 6, an M-shaped mode with rounded corners (stroke shoulders) is shown, but the engaging portion 62 capable of positioning related elements and those related elements are sandwiched from both sides. As long as the pair of holding portions 61 is provided, the overall shape is not particularly limited. For example, an angular (Ikari shoulder) M-shaped form may be used. The regulating member 6 is preferably formed of, for example, polycarbonate in consideration of strength and flexibility.

The procedure for attaching the antenna 2 is as follows. First, the O-ring 5 is attached to the base end portion 32 of the antenna cover 3. Next, the antenna cover 3 is inserted into the fitting hole 4 of the housing 1. At that time, the notch 33b of the flange portion 33 of the antenna cover 3 is inserted along the positioning protrusion 41 of the housing 1. Next, the long piece 21 of the antenna 2 is inserted into the cover portion 31 from the flange portion 33 (base end portion 32) of the antenna cover 3.

Then, the first engagement hole 33a of the flange portion 33 of the antenna cover 3 and the second engagement hole 21a of the long piece 21 of the antenna 2 are made to correspond to each other, and the engagement portion 62 of the regulation member 6 is made to correspond to the first engagement hole 33a. At the same time as the antenna 2 is inserted into the second engagement hole 21a, the flange portion 33 is sandwiched from both sides by the pair of sandwiching portions 61 to fix the antenna 2 and the antenna cover 3. Finally, the mounting holes 22a of the short piece 22 of the antenna 2 and the boss 22b formed in the housing 1 are fixed with screws 22c.

With the above structure, when the antenna cover 3 is attached, it is attached to the fitting hole 4 of the housing 1 without turning the antenna cover 3, so that the waterproof O-ring 5 does not bend and has a waterproof function. Can be installed without damaging.

Further, since the engagement portion 62 of the regulating member 6 enters the first engagement hole 33a of the antenna cover 3 and the second engagement hole 21a of the antenna 2, the antenna 2 may shift when the antenna cover 3 is attached to the antenna 2. It is possible to prevent the antenna cover 3 from being disengaged from the fitting hole 4 of the housing 1 due to the repulsive force of the O-ring 5, and it is easy to form a temporarily fixed state. In particular, when the coil spring is provided in the antenna cover 3, it is necessary to attach the antenna cover 3 to the antenna 2 while supporting it by hand, and this work is eliminated, so that workability is improved.

Although the embodiments have been described above, the present invention is not limited to the specific embodiments, but includes those with various modifications, which are claimed by those skilled in the art. It is clear from the description of the range.

1 ... Housing 1a ... Upper side surface 11 ... Board 2 ... Antenna 21 ... Long piece 21a ... Second engagement hole 22 ... Short piece 22a ... Mounting hole 22b ... Boss 22c ... Screw 3 ... Antenna cover 31 ... Cover portion 32 ... Base end Part 33 ... Flange part 33a ... First engagement hole 33b ... Notch 4 ... Fitting hole 41 ... Positioning protrusion 5 ... O-ring 6 ... Regulatory member 61 ... Pair of sandwiching parts 62 ... Engagement part

Claims (4)

It is an antenna mounting structure
With the housing
A fitting hole provided on the side surface of the housing and
An antenna extending from the inside to the outside of the housing through the fitting hole,
An antenna cover that is attached to the fitting hole and has a base end portion that covers the inner portion of the antenna and a cover portion that protects the outer portion of the antenna.
An antenna mounting structure comprising: inside the housing, a regulating member for simultaneously tightening the inner portion of the antenna and the base end portion of the antenna cover. The restricting member has a pair of holding portions and an engaging portion protruding from substantially the center of the pair of holding portions.
The pair of sandwiching portions sandwich a flange portion provided around at least a part of the base end portion of the antenna cover.
The first aspect of claim 1, wherein the engagement portion is engaged with a first engagement hole formed in the flange portion and a second engagement hole formed in the inner portion of the antenna. Antenna mounting structure. The housing has a positioning protrusion inside the fitting hole, the flange portion of the antenna cover has a notch at a position corresponding to the positioning protrusion, and the notch is made along the positioning protrusion. The antenna mounting structure according to claim 2, wherein the antenna cover is mounted in the fitting hole. The antenna mounting structure according to any one of claims 1 to 3, further comprising an O-ring mounted on the outer peripheral surface of the base end portion.

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