JP3522155B2 - Electronic device with antenna - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device having an antenna, and more particularly to an electronic device using an antenna which cannot be easily removed by a user.

[0002]

2. Description of the Related Art There are conventional electronic devices with an antenna that allow the user to easily remove the antenna, and those that prevent the user from easily removing the antenna. Small radios and the like are known as the former, and transceivers and mobile phones are known as the latter.

[0003] For an antenna in which the antenna cannot be easily removed, means such as fixing or adhering with a screw inside the device is usually taken. For example, as shown in FIG.
Receptacle 7 for fixing screws inside the case 71 of the device body
There is known a structure in which two antennas are arranged, the antenna 73 is screw-engaged with the receptacle 72, and the hexagonal screw 74 prevents the antenna 73 from coming off. The hexagon screw 74 is
The antenna 73 is prevented from coming off by entering the groove 75 provided in the antenna 73.

Further, as shown in FIG.
, A screw insertion hole 82 and an antenna connection hole 83 are provided, while the antenna 84 is provided with a connection protrusion 85 and a female screw 86 to be inserted into the antenna connection hole 83.
There is also known a structure in which 4 is arranged in contact with the outer side surface of the case 81 and fixed to the case 81 with a screw 87. In addition,
The screw 87 is attached inside the case 81.

[0005]

A conventional antenna of an electronic device in which the antenna cannot be easily removed is as follows.
Since it needs to be firmly attached, it spends a lot of time in the screw tightening and bonding processes. Further, since a large force is applied by screwing or the like, the antennas 73 and 84 and the cases 71 and 81 are made strong members. For this reason, the device tends to be heavy and expensive.

Further, in the structure as shown in FIG. 15, since the receptacle 72 has a special shape, the productivity is lowered and the cost is increased. Further, in the case of the structure shown in FIG. 16, an assembling property is deteriorated due to a mistake in the mounting position of the antenna 84, and the antenna 84 has a special shape, resulting in an increase in cost. Further, in the case of adhesion, the quality is easily affected by temperature changes and the like, and the fixing force varies depending on the working atmosphere, and it is difficult to secure the fixing strength.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an electronic device with an antenna having an antenna mounting structure that does not require screwing or adhesion. Another object of the present invention is to provide an electronic device with an antenna, which is capable of providing a low-priced antenna with stable quality while ensuring the strength of the antenna.

[0008]

In order to achieve the above object, the present invention provides an antenna element, a cover having an insertion space into which the antenna element is inserted and protecting the antenna element, and an antenna. It is provided with a substrate to which the element is connected and a case that covers this substrate and other electronic components, and the cover is arranged inside the case and a case outside protrusion that projects outside the case, and this cover does not come out of the case. And a locking part that prevents the contact between the chassis on which the substrate is placed and the case, and the locking part is fixed to the case.
With a bulging part that extends to the
A cover in which the dent and the bulge are fitted by the circumferential rotation.
-Providing a fixed part and rotating the cover in the circumferential direction
Fit the protrusion and dent, and cover the bulge.
-It is an electronic device with an antenna that is fitted into the fixed part .

[0009]

[0010]

[0011]

[0012]

[0013]

In this way, the protrusions and bulges provided on the cover
Cover that protects the antenna element using the protrusion
Since it is locked, it does not require screws and adhesives as in the past.
Or can be reduced. Also, no extra members are required
As a result, the assembly efficiency is improved.

Further, another invention, in addition to inventions described above, the outer peripheral surface between the casing outer projection and the engaging portion, circumferential grooves portion enters surrounding the insertion hole provided in the case Installed in
A circular packing having elasticity is arranged in this groove. For this reason, the packing serves to prevent looseness and to waterproof.

In addition to the above-mentioned inventions, other inventions include
The cover has an integrated operation switch that is exposed outside the case.
It is provided in. As a result, the number of parts is reduced and assembly efficiency is improved.
Can be increased and the cost can be reduced. Also integrated
The operation switch part that has been operated also functions as a locking part.
This further improves the prevention of the antenna case from coming off.
It

In addition to the above-mentioned inventions, other inventions include
The cover with the root of the protruding part outside the case provided on the case is inserted.
Larger than the diameter of the insert hole
The diameter between and is smaller than the diameter of the insertion hole, and the cover
Are made of a resin material having elasticity.

For this reason, a cover is attached to the insertion hole of the case.
When you insert it from the inside, bend it so that the cover has a small diameter.
After that, the small diameter part of the cover enters the insertion hole. This
Assemble the antenna cover into the case by
It becomes possible to embed.

In addition to the above-mentioned inventions, other inventions include
Make the insertion space larger on the board side than on the tip side, and
At the entrance on the plate side, gradually reduce the diameter toward the tip side.
It has a conical section.

Therefore, the antenna element is mounted on the substrate side.
When inserting into the cover from the
It

[0021]

As described above, since the antenna element is protected by the cover, it is possible to make the element inexpensive without requiring strength. As a result, a low-cost antenna structure can be obtained while ensuring the strength of the antenna. Furthermore, when the antenna element is inserted into the cover from the substrate side, the insertion work becomes easy.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS. Note that all the electronic devices with an antenna shown in this embodiment are transceivers. In addition, first, a first embodiment will be described based on FIGS. 1 to 9.

The transceiver 1 includes an antenna element 2, a cover 4 having an insertion space 3 into which the antenna element 2 is inserted to protect the antenna element 2, and a substrate 5 to which the antenna element is connected. ,
This board 5 and other electronic parts, for example, a small speaker, a case 6 for covering a resistor and the like are provided.

The transceiver 1 is further inserted into a chassis 7 on which the substrate 5 is placed, a bush 8 fitted into the chassis 7 and sandwiching the root portion 2a of the antenna element 2, and a groove 9 provided in the cover 4. It has a circular packing 10 having elasticity. The antenna element 2 and the cover 4 form an antenna section. In addition, in this embodiment, the cover 4 is installed near the corner of the case 6.

The antenna element 2 has a structure in which a metal material capable of receiving radio waves is covered with a resin member which has been subjected to irradiation crosslinking. The insertion space 3 of the cover 4 is the substrate 5
The diameter of the entrance on the side is larger than that on the tip side. Moreover, a conical portion 3a having a gradually decreasing diameter toward the tip side is provided at the entrance portion on the substrate 5 side, and a cylindrical portion 3b having a small diameter is provided at the tip side. This cylindrical portion 3
The diameter of b is slightly larger than the diameter of the antenna element 2.

The cover 4 has a cylindrical case outer protruding portion 11 protruding to the outside of the case 6, and a diamond-shaped locking portion 12 arranged inside the case 6 to prevent the cover 4 from coming out of the case. It has a groove 9 which is provided between the case outer protruding portion 11 and the locking portion 12 and into which the case 6 is fitted.

The outer diameter of the root 11a of the case outer protruding portion 11 is slightly larger than the inner diameter of the insertion hole 14 formed in the case 6. The outer diameter of the locking portion 12 is the insertion hole 14
Is larger than the inner diameter and the outer diameter of the root 11a.
The locking portion 12 is sandwiched between the case 6 and the chassis 7, and is fitted into the diamond-shaped recess 15 of the chassis 7 and the diamond-shaped fitting portion 16 of the case 6.
The groove 9 is formed in a circular shape on the outer periphery of the cover 4, and as described above, the portion surrounding the packing 10 and the insertion hole 14 of the case 6 is inserted.

The case 6 is made of resin, and as described above, the insertion hole 14 into which the cover 4 is inserted and the cover 4 are inserted.
Fitting part 1 formed of a diamond-shaped recess into which the locking part 12 of
And 6 are provided. The chassis 7 is made of metal, and has a flat portion 17 on which the substrate 5 is placed and a cover 4.
Vertical part 18 that holds the locking part 12 of the
And have. The vertical portion 18 has a diamond-shaped recess 15
And a circular hole 19 that is installed substantially in the center of the recess 15,
The conventional receptacle 72 is provided with a screw hole 20 for fixing the receptacle 72 with a screw. That is, the screw hole 20 is provided so that the conventional receptacle 72 can be used instead of the cover 4 of the present embodiment. The bush 8 is inserted into the circular hole 19.

The bush 8 is made of C-shaped rubber. Before installation, the bush 8 is connected to the entrance opening 21 where the outside is wide open and gradually narrowed, and the back side which is connected to the entrance opening 21 and extends to the substantially central position of the bush 8 with the same width. And an opening 22.

When the bush 8 is fitted into the circular hole 19 of the chassis 7, the two arm portions 23, 23 forming the openings 21, 22 are pushed from the outer periphery and the tip portions are in contact with each other, and the entrance opening portion is formed. The connection between 21 and the back side opening 22 is cut. The antenna element 2 is arranged so as to be pressed by the both arms 23, 23 into the back side opening 22 that is closed by disconnecting the connection with the outside.

The insertion hole 14 provided in the case 6 faces the groove 9 of the cover 4 and the conical portion having the inclined surface 25 whose diameter gradually increases toward the inside of the case in order to press the packing 10. And a cylindrical portion having a small diameter. The diamond-shaped recess 15 provided in the chassis 7 is provided at a corner of the vertical portion 18 of the chassis 7.

Next, a method of assembling the antenna section of the transceiver 1 having the above-described structure will be described.

First, the packing 10 is attached to the cover 4 as shown in FIG. This attachment is performed by inserting the packing 10 from the case outer protruding portion 11 direction and moving it toward the locking portion 12. The packing 10 is made of a soft rubber such as silicon, and prevents looseness due to the clearance when the cover 4 and the case 6 are fitted together, and at the same time serves as a waterproof function. If these two effects are unnecessary, the packing 10 may be omitted.

Next, as shown in FIG. 2B, the cover 4 is fitted into the insertion hole 14 formed in the case 6 from the inside of the case 6. At this time, the locking portion 12 provided on the lower end of the cover 4 fits into the fitting portion 16 provided on the inner wall of the case 6. The fitting portion 16 is a diamond-shaped recess having the same shape as the locking portion 12, and is effective in preventing rotation of the cover 4 after fitting.

In addition, the cover 4 has an insertion hole 1 for the case 6.
Since there is the base 11a which is set to be slightly larger than the diameter of 4, the cover 4 after fitting is temporarily fixed. When the base 11a passes through the insertion hole 14, the cover 4 is pushed from the outer periphery and the insertion space 3 of the cover 4 is pushed.
Since the outer diameter of the cover 4 becomes smaller due to the smaller diameter, the base 11a having a larger diameter than the insertion hole 14 can pass through.

Next, as shown in FIGS. 4 and 5, the bush 8 is attached to the chassis 7. Specifically, the bush 8 is fitted into the circular hole 19 of the recess 15 of the chassis 7. At this time, the bush 8 is attached with the back side opening 22 recessed as shown in FIG. 5 (B).

Subsequently, the antenna element 2 is attached to the entrance opening 21 of the bush 8 attached to the chassis 7.
Through, and the antenna element 2 is pulled out to a predetermined position on the substrate 5. Then, it is moved in parallel to the back side opening 22 side. In this way, the antenna element 2 is sandwiched and fixed in the back side opening 22 of the bush 8. This state is shown in FIGS. 6 and 7.

Finally, as shown in FIG. 8, the case 6 and the chassis 7 are fitted to each other, and the locking portion 12 is firmly sandwiched between the case 6 and the chassis 7. In this state, the chassis 7 has the concave portion 15 having the same shape as the locking portion 12, so that the effect of preventing rotation is increased, and the cover 4 does not come off from the case 6. Further, since the covering portion on the outer periphery of the antenna element 2 is a resin member that has been subjected to irradiation cross-linking treatment that is slippery and strong against the heat of the solder, no defects occur during the soldering work.

Since the antenna fixing structure adopted in the transceiver 1 of this embodiment does not require screwing or bonding, the antenna is not detached due to loosening or variations in work, and the quality is stable. Further, the cover 4 can be easily and surely fixed, which reduces the man-hours. Furthermore, the strength of the antenna part is
The antenna element 2 is secured by the cover 4 and the bush 8 and does not depend on the antenna element 2.
A cheap material can be used for. In addition, since the antenna element 2 is held by the bush 8, the stress due to the movement of the antenna element 2 is not transmitted to the substrate 5. Therefore, the antenna element 2 does not come off from the substrate 5 or the connection is not defective.

Further, in this antenna structure, the packing 10 prevents looseness between the cover 4 and the case 6 and prevents water from entering the case 6 through the insertion hole 14. Further, the fitting portion 16 provided on the case 6 ensures that the cover 4, that is, the antenna portion, is prevented from rotating. Further, since the shape of the locking portion 12 provided integrally with the cover 4 is matched with the shape of the mounting flange of the conventional receptacle 72, other fitting parts can be used in common when the receptacle 72 is used. Furthermore, since the coating portion on the outer periphery of the antenna element 2 is a resin member that has been subjected to irradiation crosslinking, the assembly work is improved.

Next, the transceiver 3 of the second embodiment
1 will be described with reference to FIG. The same members as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted or simplified.

The resin-made cover 32 of the transceiver 31 of this embodiment does not have the groove 9 seen in the cover 4, but is instead fitted and locked to the chassis 7.
The cover protrusion 33 is provided as a locking portion of the. Further, the case 6 is not provided with a fitting portion into which the diamond-shaped locking portion 12 is fitted. Furthermore, the bush 8 is not used either. Instead of the bush 8 fitting, a circular hole 19
A joint portion 34 that connects the convex portion 33 of the cover and the locking portion 12 is fitted to the.

The antenna fixing structure adopted in the transceiver 31 of the second embodiment is the bush 8 or the packing 1.
Since 0 is not provided, among the various effects shown in the first embodiment, there is no effect related to these members, but other effects are similarly provided. In addition,
In the cover 32, the groove 9 seen in the cover 4 is formed,
In addition to the groove 9, packing 10 may be provided, or an operation switch section may be integrally provided on the cover 32, as described later. Further, the bush 8 may be fitted into the board-side entrance of the insertion space 3 of the cover 32.

Next, the transceiver 41 of the third embodiment will be described with reference to FIGS. 11 and 12.
The same members as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted or simplified.

Transceiver 41 of the third embodiment
The resin cover 42 has two operation switch parts 4
3, 44 are integrally formed. Further, the case 6 and the chassis 7 are not provided with a fitting portion or a recess into which the locking portion 12 of the cover 42 fits. However, the operation switch section 4
The rotation prevention of the cover 42 is prevented by fitting the holes 3 and 44 into the switch holes 45 and 46 of the case 6, for example. In addition, at the centers of the operation switch parts 43 and 44, pressing parts 43a and 44a for pressing a switch (not shown) installed on the substrate 5 are also integrally provided.

The antenna fixing structure adopted in the transceiver 41 of the third embodiment also has various effects shown in the first embodiment except for the packing 10.

Next, the transceiver 5 of the fourth embodiment
1 will be described with reference to FIGS. 13 and 14. The same members as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted or simplified.

Transceiver 51 of the fourth embodiment
The antenna fixing structure of 1 is considerably different from those shown in the first to third embodiments already described. The locking portion 12 of the cover 52 is provided with a protrusion 53 protruding toward the case 6 and a bulging portion 54 extending in the circumferential direction. Further, the case 6 is provided with a cover fixing portion 56 into which the dent portion 55 with which the protrusion 53 is fitted and the bulging portion 54 are fitted by the rotation in the circumferential direction.

The cover 52 in this antenna fixing structure
Is fixed as follows. First, the cover 52 is moved through the insertion hole 14 provided in the case 6 in the direction of arrow A as shown in FIG. After that, cover cover 52 with arrow B
Direction (clockwise in FIG. 13). Then, the bulging portion 54 begins to enter the gap 57 of the cover fixing portion 56 while widening the gap 52 side of the gap 57.
Further, rotate in the B direction (80 to 90 in total from the beginning)
The protrusion 53 enters the dent 55.

At this time, the engaging portion 12 is the cover fixing portion 5
The elastic force of 6 presses the portion in contact with the front end portion 56a, and firmly enters the gap 57. Further, the bulging portion 54 has a positional relationship substantially vertical to the cover fixing portion 56 by the rotation of about 80 to 90 degrees in total, so that the bulging portion 54 is prevented from moving in the radial direction and the axial direction, and rattling is eliminated.

Thereafter, a chassis (not shown) as shown in FIG. 11 is arranged so as to face the locking portion 12. It is preferable to further sandwich the locking portion 12 with the case 6 by this chassis, but the cover fixing portion 5
Since the cover 52 is firmly fixed by 6,
It does not necessarily have to be so configured. Further, the bush 8 shown in FIG. 1 and the like is not necessarily required to be provided. In addition,
In the cover 52, the groove 9 seen in the cover 4 is formed,
In addition to the groove 9, the packing 10 may be provided, or the cover 52 may be integrally provided with the operation switch portion.

The above-described embodiments are examples of the preferred embodiments of the present invention, but the present invention is not limited to these, and various modifications can be made without departing from the gist of the present invention. Is. For example, covers 4, 32, 4
The conical portion 3a may not be provided in the insertion spaces 3 of 2, 52 and only the cylindrical portion 3b may be provided. Further, instead of providing the insertion hole 14 in only one case 6, a semicircular hole cutout is provided in the other case (not shown), and the case 6 is also provided with a semicircular hole cutout. The circular insertion hole 14 may be formed by fixing the two cases with the holes facing each other.

The case 6 may be made of metal instead of resin. Furthermore, the antenna fixing structure shown in each of the embodiments can be applied to electronic devices that require various antennas such as mobile phones, PHSs, and portable electronic devices other than transceivers.

[0055]

As described above, according to the present invention, it is possible to obtain an electronic device with an antenna having an antenna mounting structure which does not require screwing or bonding. Further, according to another aspect of the invention, it is possible to obtain an electronic device with an antenna, which is capable of providing a low-priced antenna with stable quality while ensuring the strength of the antenna.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view showing a structure of an antenna portion of a transceiver according to a first exemplary embodiment of the present invention.

2A and 2B are views for explaining a method of incorporating a cover for an antenna of the transceiver of FIG. 1 in a case, FIG. 2A is a view showing a state where packing is attached to the cover for antenna, and FIG. It is a figure which shows the state mounted | worn with a case.

FIG. 3 is a cross-sectional view showing a state where a cover for an antenna is incorporated in a case in the transceiver of FIG.

FIG. 4 is a diagram for explaining a state where the bush is incorporated in the chassis in the transceiver of FIG.

5A and 5B are views for explaining a state in which the bush is incorporated in the chassis in the transceiver of FIG. 1, FIG. 5A is a plan view of the bush before being incorporated, and FIG. 5B is a state in which the bush is incorporated in the chassis. It is a front view.

6 is a perspective view for explaining a mounting method when the antenna element is sandwiched by a bush in a chassis in the transceiver of FIG. 1. FIG.

7A and 7B are views for explaining a mounting method when the antenna element is sandwiched by a bush in the chassis in the transceiver of FIG. 1, and FIG. 7A shows a state in which the antenna element is placed and inserted in an inlet opening of the bush. In the sectional view shown, (B)
FIG. 4 is a cross-sectional view showing a state in which the bush has entered the back side opening.

FIG. 8 is a diagram for explaining a state in which the chassis of FIG. 1 in which the antenna element is attached is incorporated into a case in which the antenna cover is attached.

9 is a partial perspective view showing the transceiver of FIG. 1 in which a chassis to which an antenna element is attached is incorporated in a case to which an antenna cover is attached.

FIG. 10 is a partial cross-sectional view showing a structure for fixing an antenna portion in the transceiver according to the second embodiment of the present invention.

FIG. 11 is a partial cross-sectional view showing a structure for fixing an antenna portion in the transceiver of the third exemplary embodiment of the present invention.

FIG. 12 is a perspective view of a cover for an antenna used in the antenna portion shown in FIG. 11, viewed from the bottom side.

FIG. 13 is a partial perspective view showing a fixing structure of an antenna portion in the transceiver of the fourth exemplary embodiment of the present invention.

FIG. 14 is a partial perspective view of the antenna cover used in the antenna portion shown in FIG. 13 as seen from the front end side.

FIG. 15 is an exploded perspective view showing a structure of an antenna portion provided in a conventional electronic device.

FIG. 16 is an exploded perspective view showing another structure of an antenna portion provided in a conventional electronic device.

[Explanation of symbols]

1 Transceiver (electronic device with antenna) 2 Antenna element 3 insertion space 3a conical part 3b cylindrical part 4 cover 5 substrates 6 cases 7 chassis 8 bush 9 grooves 10 packing 11 Case outside protrusion 12 Locking part 14 insertion holes 15 recess 16 Fitting part 53 Projection 54 bulge 55 Dent 56 Cover fixing part

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-11-195914 (JP, A) JP-A-11-88024 (JP, A) JP-A-10-284917 (JP, A) JP-A-10- 173420 (JP, A) JP 10-13290 (JP, A) JP 9-55612 (JP, A) JP 8-222927 (JP, A) JP 7-273522 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) H01Q 1/24 H01Q 1/42 H04B 1/08

Claims (5)

(57) [Claims] 1. An antenna element and the antenna
This antenna has an insertion space into which an element for insertion is inserted.
Cover for protecting the antenna element and the antenna element
The board to which the module is connected and this board and other electronic components.
The cover includes a case, and the cover is arranged inside the case and a case outside protrusion that protrudes outside the case.
It has a locking portion for preventing the exit, a chassis and the cable to the locking portion, disposing the substrate
Fixed sandwiched between the scan, the upper Symbol locking portion provided a bulge extending protrusion in the circumferential direction to protrude above SL case side, the upper SL case the protrusion is fitted a dent portion and a cover fixing part where the bulged portion is fitted by rotation in the circumferential direction is provided, by rotating the upper Symbol cover in the circumferential direction, the expanded together with fitting the said projection and said recess features and to luer antenna-equipped electronic apparatus that the part was incorporated fits to the cover fixing part. 2. A portion surrounding an insertion hole provided in the case on an outer peripheral surface between the case outer protruding portion and the locking portion.
Claim 1 is provided with grooves circumferentially penetrate, characterized in that a circular packing having elasticity into the groove
Serial mount antenna with electronic devices. Wherein the cover is according to claim 1 or 2 antenna with electronic device according operating switch part exposed to the outside of the case and being provided integrally. 4. The diameter of the insertion hole through which the cover provided in the case is inserted,
With a diameter between the locking portion and the outer case projecting part be smaller than the diameter of the insertion hole, any one of claims 1 to 3, characterized in that the cover is formed of a resin material having elasticity The electronic device with an antenna according to item 1. 5. The insertion space has a diameter larger on the substrate side than on the tip side, and a conical portion having a diameter gradually decreasing toward the tip side is provided at an entrance portion on the board side. antenna-equipped electronic apparatus according to any one of claims 1 4, characterized.