JP2002374117A - Radio communication device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a radio communication device which is easy to assemble and high in reliability in electrical connection quality, and can be provided at a low cost. SOLUTION: The case of a radio communication device is constituted of a cabinet front 1 on a side of fixing a circuit substrate and a cabinet reverse 2, on a side of having an antenna projection part 10 covering an antenna, and an antenna holder for guiding the antenna is provided in the cabinet front 1. The antenna has one end soldered to the circuit substrate. The antenna is accommodated in a guide part of this antenna holder and is covered with the antenna projection part 10 of the cabinet reverse 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio communication device, and more particularly to a radio communication device having an improved antenna storage method.

[0002]

2. Description of the Related Art FIGS. 7 and 8 show the configuration of a conventional portable telephone. FIG. 9 shows a modification of the contact portion of the mobile phone. 7, 8, and 9, reference numeral 1 denotes a cabinet / table forming the front surface of the housing, reference numeral 2 denotes a cabinet / back surface forming the back surface of the housing, reference numeral 4 denotes an antenna element, reference numeral 5 denotes a substrate, and reference numeral. 6 is a screw, 9 is an antenna contact spring, 10 is an antenna protrusion, and 13 is an antenna support rib.

In a conventional wireless communication device such as a cellular phone, components such as a push button, a liquid crystal display device, a receiver, and a microphone are provided on the cabinet / front side 1, so that positioning, support, and electric power to these components are provided. In general, the board 5 is mounted on the cabinet / front side 1 because the electrical connection is facilitated. On the other hand, if the antenna is located on the front side of the cabinet, it is more likely that the antenna protrusion 10 comes into contact with the human ear or head so that it becomes a hindrance during use. Also, since the human head becomes an obstacle to radio waves during communication, the closer the antenna is to the head, the lower the call quality and the shorter the reach of radio waves. It is preferable to dispose it on the cabinet / backside 2 side away from the part.

That is, in the conventional radio communication device, as shown in FIGS. 7, 8 and 9, an antenna element 4 is attached to a cabinet / back 2 via an antenna support rib 13, and a substrate 5 is attached to the cabinet / front. Attach to 1.
By incorporating the cabinet / front 1 and cabinet / back 2, the antenna contact spring 9 attached to the substrate 5 and the antenna element 4 come into contact with each other in FIG. 7 and FIG. Further, in FIG. 9, the structure is such that the spring portion at the end of the antenna element 4 contacts the substrate 5 and conducts electricity.

With such a structure, the antenna element 4 and the substrate 5
Alternatively, each contact surface of the antenna contact spring 9 on the substrate 5 side needs to be plated with low contact resistance such as gold plating. For this reason, there was a problem that parts cost increased. In addition, there is another problem that the reliability of the electrical connection quality is lower than in the case of directly soldering because the connection is made conductive.

[0006]

As described above, in the conventional wireless communication apparatus, the circuit board is mounted on the cabinet / front and the antenna is mounted on the cabinet / back, and the circuit is mounted on the cabinet / front and cabinet / back. The configuration has been such that the substrate and the antenna are in contact with each other to make electrical connection. For this reason, it is necessary to apply gold plating or the like to the contact portion for the purpose of reducing the contact resistance, and there is still a problem that the reliability of the electrical connection quality is lower than in the case of directly soldering. The present invention solves this problem in a relatively simple manner, providing antenna protrusions on the back of the cabinet, and connecting the antenna directly to the circuit board, making assembly easy and electrical connection possible. It is an object to realize a wireless communication device which has high quality reliability and can be provided at low cost.

[0007]

In order to achieve the above object, the present invention has an antenna partly protruding from a housing, and is connected to a base station or a base unit by radio communication via the antenna. In the wireless communication device, the housing includes a first member on a side for fixing a circuit board and a second member on a side having a convex portion covering the antenna, and the antenna extends along a longitudinal direction of the antenna. An antenna holding means having a guide portion for guiding the antenna is provided on the first member, one end of the antenna is connected to a circuit on the circuit board provided on the first member, and It is housed in the housing so as to be housed in the guide portion and to be covered by the projection of the second member. This provides an inexpensive wireless communication device that is easy to assemble, has high reliability in electrical connection quality, and provides an antenna protrusion on the back of the cabinet and connects the antenna directly to the circuit board. can do.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a radio communication device according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an external view of a wireless communication apparatus according to the present invention. FIG. 1 (a) is a front view and FIG. 1 (b) is a side view.
2 to 5 show the configuration of the wireless communication apparatus according to the present invention. FIGS. 2 (a), 2 (b), 4 (a) and 4 (b) are horizontal sectional views and FIG. 3 (a). 5 (a) is a vertical sectional view seen from the front side, and FIGS. 3 (b) and 5 (b) are vertical sectional views seen from the side. FIG. 6 is a detailed view of a soldered portion of the antenna element and a rib portion of the antenna holder. 1 to 6, reference numeral 1 denotes a cabinet / table,
2 is a cabinet / back, 3 is an antenna cover,
Reference numeral 4 denotes an antenna element formed of phosphor bronze or copper alloy wire, reference numeral 5 denotes a substrate, reference numeral 6 denotes a screw, reference numeral 7 denotes an antenna holder, reference numeral 8 denotes a receiver, reference numeral 11 denotes a push button, reference numeral 12 denotes a liquid crystal. Reference numeral 41 denotes a soldered portion of the antenna element 4, and reference numeral 71 denotes a rib of the antenna holder 7. Further, reference numeral 10 denotes an antenna convex portion formed of the antenna cover 3 and a part of the cabinet / back 2.

In the present invention, as shown in FIG. 1, the antenna convex portion 10 of the wireless communication device is provided on the cabinet / back 2 side, and the antenna element 4 is directly mounted on the substrate 5 as shown in FIGS. Attach by soldering. On the other hand, the board 5 is attached to the cabinet / table 1, and the antenna element 4 is also attached to the cabinet / table 1. Then, the antenna element 4 is housed in the rib 71 of the antenna holder 7. Conventionally, in such a configuration, when assembling the cabinet / table 1 and the cabinet / rear 2 from this state, it is difficult to visually check the operation of dipping the antenna element 4 into the antenna cover 3. -There was a possibility that the antenna element 4 was deformed by hitting the back surface 2 or a stress was applied to the soldered portion 41 to which the antenna element 4 was attached, resulting in poor conduction. In order to avoid this, conventionally, a structure as shown in FIGS. 7 to 9 is adopted to connect the antenna element 4 to the cabinet / backside 2 so as to be in contact with the substrate 5 to avoid such work itself. I was

However, in the present invention, the antenna element 4 is housed in the rib 71 of the antenna holder 7 so that the cabinet / back 2 does not hit the antenna element 4 directly, and the above-described problem occurs. It is possible to assemble without the need. In this case, since the antenna element 4 is directly soldered to the substrate 5, a structure having higher reliability of the electrical connection quality is obtained as compared with the conventional case where the antenna element 4 is electrically connected by contact. In this case, plating such as gold plating on the contact portion, which has been conventionally required, becomes unnecessary. On the other hand, it is necessary to add a part called the antenna holder 7 which is not necessary in the related art. However, in terms of cost, the antenna holder 7 is less expensive than gold plating, so that adopting the present invention has a cost merit.

2 and 3, the configuration of an embodiment of the wireless communication apparatus according to the present invention will be described in the order of installation. First, the antenna element 4 is soldered to the substrate 5.
The shape of the portion of the antenna element 4 to be inserted into the substrate 5 is designed to increase the soldering area in order to mechanically hold the antenna element 4 on the substrate 5 and to increase the mounting strength. It is desirable to form a shape like the part 41 and solder at a plurality of locations.

Next, the antenna holder 7 is attached to the cabinet / table 1. In FIGS. 2 and 3, the screws 6 are used to fix the screws, but the fixing method is not particularly limited.
2 and 3, the antenna holder 7 also has a function of holding down the receiver 8 for talking. When the substrate 5 is mounted on the cabinet / table 1, the antenna element 4 is housed in the rib 71 of the antenna holder 7 as shown in FIG.

Next, the cabinet / back 2 is assembled into the cabinet / front 1. At this time, the antenna element 4
The antenna element 4 is protected by the antenna holder 7, so that the antenna element 4 does not hit the cabinet / back 2 or the antenna cover 3 against the antenna element 4. Therefore, no force is applied to deform the antenna element 4 and no stress is applied to the soldered portion 41 to which the antenna element 4 is attached, and no conduction failure occurs. Here, the projection 10 of the antenna is formed using a separate component called the antenna cover 3, but the projection 10 of the antenna may be formed integrally with the cabinet / back 2. Although the assembling procedure has been described above, when the housing is disassembled, similarly, there is no problem that the cabinet / backside 2 or the antenna cover 3 does not hit the antenna element 4 and the soldering portion 41 is stressed. Does not occur.

FIGS. 4 and 5 show another embodiment of the wireless communication apparatus of the present invention. In this example, the antenna holder 7 attached to the cabinet / table 1 in FIGS.
Is attached to the substrate 5. 4 and 5, the antenna holder 7 is attached in such a manner that the claws of the antenna holder 7 are fitted to the substrate 5, but the attaching method is not particularly limited. The antenna element 4 is protected by an antenna holder 7. Thus, even when the antenna holder 7 is attached to the substrate 5, the same effect can be obtained.

As described above, in the present invention, since the antenna element 4 is protected by the antenna holder 7,
When assembling the cabinet / back 2 and the cabinet / table 1, the cabinet / back 2 and the antenna cover 3 do not hit the antenna element 4 and an undesired force is not applied to the antenna element 4. Therefore,
The antenna element 4 is not deformed at the time of assembling, and stress is not applied to the soldered portion to which the antenna element 4 is attached, so that conduction failure does not occur. In addition, since the antenna element 4 is directly soldered to the substrate 5, it is not necessary to perform gold plating or the like as compared with a conventional structure in which contact is made conductive, so that the antenna element 4 is inexpensive and the antenna element 4 is directly soldered to the substrate 5. Therefore, there is an effect that the reliability of the connection is high.

[0017]

As described above, according to the first aspect of the present invention, the first member on the side for fixing the circuit board to the housing of the wireless communication device and the second member on the side having the convex portion for covering the antenna are provided. And an antenna holder having a guide portion for guiding the antenna along the longitudinal direction of the antenna.
Of the antenna, one end of the antenna is connected to a circuit on a circuit board provided on the first member, is housed in the guide portion of the antenna holder, and is covered by the convex portion of the second member. Is stored in. This prevents the antenna from being deformed by hitting the housing during assembly and stressing the soldered portion of the antenna, resulting in poor conduction, easy assembly, high reliability of electrical connection quality, An inexpensive wireless communication device can be realized.

According to a second aspect of the present invention, one end of the antenna is connected to the circuit by soldering at a plurality of locations. Thereby, the soldering area can be increased, the connection strength between the antenna and the circuit can be increased, and the reliability of the electrical connection can be increased.

[Brief description of the drawings]

FIG. 1 is an external view of a wireless communication device according to the present invention.

FIG. 2 is a configuration diagram of an embodiment of a wireless communication device according to the present invention.

FIG. 3 is a configuration diagram of an embodiment of a wireless communication device according to the present invention.

FIG. 4 is a configuration diagram of another embodiment of the wireless communication device of the present invention.

FIG. 5 is a configuration diagram of another embodiment of the wireless communication device of the present invention.

FIG. 6 is a detailed view of a soldered portion of the antenna element and a rib portion of the antenna holder of the wireless communication device according to the present invention.

FIG. 7 is a configuration diagram of a conventional mobile phone.

FIG. 8 is a configuration diagram of a conventional mobile phone.

FIG. 9 is a view showing a modification of a contact portion of a conventional mobile phone.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Cabinet front, 2 ... Cabinet back, 3 ... Antenna cover, 4 ... Antenna element, 5 ... Board, 6
... screws, 7 ... antenna holder, 8 ... receiver, 9 ... antenna contact spring, 10 ... antenna protrusion, 11 ... push button, 12 ... liquid crystal display device, 13 ... antenna support rib, 4
1 ... Solder, 71 ... Rib.

Continued on the front page F term (reference) 5J046 AA09 AA10 AB06 DA03 5J047 AA09 AA10 AB06 FA01 FA10 FA12 FD01 5K023 AA08 BB04 DD06 LL01 LL05 LL06 5K067 AA33 BB04 EE02 EE10 KK01 KK17

Claims (2)

[Claims] 1. A wireless communication device having an antenna partly protruding from a housing and being connected to a base station or a base unit by wireless communication via the antenna, wherein the housing is a side on which a circuit board is fixed. And a second member on the side having a convex portion covering the antenna, wherein the antenna holding means having a guide portion for guiding the antenna along the longitudinal direction of the antenna is provided by the first member. The antenna has one end connected to a circuit on the circuit board provided on the first member, housed in a guide portion of the antenna holding means, and the antenna of the second member. A wireless communication device, wherein the wireless communication device is housed in the housing so as to be covered by a protrusion. 2. The wireless communication apparatus according to claim 1, wherein the connection between one end of the antenna and a circuit on the circuit board is performed by soldering at a plurality of locations.