JP3157459B2 - Antenna device for mobile communication device and power feeding method therefor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna device for a mobile communication device such as a portable telephone or a portable radio, and a power supply method therefor.

[0002]

2. Description of the Related Art As is well known, a mobile communication device such as a mobile phone or a portable wireless device is equipped with a transmitting / receiving antenna. The transmission / reception antenna can be stored and pulled out of the communication device main body, and is used by being pulled out from the mobile communication device main body during a call. The above-mentioned antenna needs to be connected to a transmission / reception signal transmission circuit, and thus the terminal is connected to an RF circuit provided in the mobile communication device.

[0003] As one of the power supply structures for signal transmission to an antenna, a lead wire from an RF circuit is connected to a support portion of an antenna element, and a sliding position of the antenna element, that is, any of a drawing position and a storing position. Also, there is a configuration in which the conductive portion of the support portion to which the lead wire is connected is in contact with the conductive portion of the antenna element. On the other hand, the support portion of this type of antenna maintains the posture in each state for the purpose of maintaining the pulled out state and the state of not protruding unnecessarily when stored. For this reason, a structure that generates frictional resistance by pressing against an antenna element is often adopted. The power supply structure uses a portion that comes into frictional contact with such an antenna element as a current path.

[0004] The support structure of the antenna element has a structure for preventing noise from being generated by transmitting the vibration to the antenna element due to vibration when the antenna element is pulled out. As one of this structure,
There is a structure disclosed in the specification attached to the Japanese Patent Application No. 8-28311 filed by the present applicant. In the above specification, a sleeve member and a stopper member each having a diameter larger than that of the antenna element are provided at both ends in the longitudinal direction of the antenna element, and these members are electrically connected to the antenna element. In
A structure is disclosed in which a power supply member to which a terminal of a lead wire extended from a power supply circuit is connected is attached, and a power supply member and an elastic member capable of being pressed against the sleeve member and the stopper member are provided inside the power supply member. I have. In this structure, the sleeve member which is in contact with the elastic member when the antenna element is stored, or the stopper member which is in contact with the elastic member when the antenna element is pulled out, is provided at two positions in the longitudinal direction with respect to the elastic member. Are supported by being pressed against each other to prevent the swing of the antenna element. The power supply path between the power supply member and the antenna element in this structure is a power supply member,
Each contact point between the elastic member, the sleeve member or the stopper member, and the antenna element corresponds to the contact point.

[0005]

However, the above-described power supply structure has the following problems. First, the contact resistance increases due to an increase in the number of contact points constituting the power supply path. The contact resistance in the above configuration is approximately 80 to 160
When the black chrome plating is applied to the members that are exposed to the outside among the constituent members forming the power supply path for the purpose of decoration, when the resistance value is as high as 80 mΩ to 1 Ω. There is. In addition, the resistance value is not a constant value, and tends to be unstable due to a large amount of variation, which tends to cause noise during transmission and reception. Also, when many contact surfaces are combined,
Since the total sum of the contact resistances generated between the respective surfaces also increases, a large operating force is required for storing and extracting the antenna element, thereby deteriorating the operability of the communication device.

Second, since the number of contact points constituting the power supply path is large, the number of parts used in the power supply path is large, so that the parts management cost is increased and the workability of assembling the mobile communication device is deteriorated. . In particular, when a large number of parts that result in a large number of contact points are used in combination to form the power supply path, it is not easy to ensure the reliability of the conductivity in the power supply path. However, the performance of the communication device may be deteriorated.

SUMMARY OF THE INVENTION An object of the present invention is to provide a communication apparatus antenna apparatus and a power supply method thereof capable of reducing the contact resistance and the number of parts in view of the problems in the conventional communication apparatus antenna apparatus and the power supply method thereof. Is to do.

[0008]

In order to achieve this object, the invention according to claim 1 is an antenna device attached to a mobile communication device, wherein the antenna device is pulled out from the main body of the mobile communication device and the mobile device is moved. and pressure can feed member against the conductive portion any of the conditions stored in the main body of the communication device is provided to the antenna element to be selected, which can be clamped under pressure to a portion of the antenna element A holding member, wherein the power supply member and the holding member are integrally formed by an elastic member , and the antenna
The element is inserted and installed in the main body of the mobile communication device.
It is characterized in that it is mounted on a mounting member that has been shaken .

According to a second aspect of the present invention, in the antenna device for a communication device according to the first aspect, the antenna element is slid to a retracted position and a pulled-out position by a mounting member provided on a main body of the mobile communication device. A stopper member, which is movably supported and is prevented from coming off by abutting on the mounting member when pulled out, is provided at an end in the longitudinal direction, and the power supply member is pressed against the conductive portion of the antenna element. And the antenna element is arranged at a position where the antenna element can be maintained in a stored state, and the holding member is
The antenna element is arranged at a position where the holding force can be applied to the stopper member to maintain the antenna element in a pulled-out state.

According to a third aspect of the present invention, in the antenna device for a mobile communication device according to the second aspect, the antenna element has a conductive portion at an end opposite to an end where the stopper member is located in a longitudinal direction. has its conductive portion is an antenna element and the same diameter, the stopper member is a
It is characterized by having a larger diameter than the antenna element .

According to a fourth aspect of the present invention, in the antenna device for a mobile communication device according to the third aspect, the power supply member and the holding member are arranged at least with respect to the conductive portion of the conductive portion and the stopper member of the antenna element. And a single rod member capable of elastic contact.

According to a fifth aspect of the present invention, there is provided the method of feeding an antenna for a mobile communication device according to any one of the first to fourth aspects, wherein power is directly supplied to the power feeding member and the holding member. I have.

[0013]

According to the first aspect of the present invention, the power supply member and the holding member capable of supplying power to the antenna element in both the state where the antenna element is pulled out and the state where it is stored are integrally formed by the elastic member.
And the mounting provided on the body of the mobile communication device.
Power is supplied in the longitudinal direction of the mounting member because it is attached to the member
Positioning of members and holding members with respect to mounting members is possible
And the holding force of the holding member
Prevents unnecessary sliding of elements and is the main body of mobile communication equipment
The antenna element pulled out of the
Can be Also, because necessary to provide the feed mechanism when that maintain the state of the individual had name increase in contact resistance by to minimize the contact portion present in the feed path are suppressed, moreover, power supply The components used for the mechanism can be easily managed and the number of assembling steps can be reduced.

According to the second and third aspects of the present invention, the members used to maintain the antenna element in the extended state and the retracted state can be used as a feeding mechanism for the antenna element. Moreover,
Since the antenna element and the conductive portion of the antenna element have the same diameter, the power supply member is always in pressure contact with the antenna element. Thus, even when the number of contact points corresponding to the feed path is reduced, the antenna element when pulled out is held in two positions in the longitudinal direction by the holding action of the stopper portion and the pressing action by the feed member. Therefore, occurrence of shaking due to vibration or the like is prevented.

According to the fourth aspect of the present invention, since the power supply member and the holding member are constituted by a single rod member that can contact at least the conductive portion of the antenna element, a power supply mechanism with a simple structure can be obtained. .

According to the fifth aspect of the present invention, since power is directly supplied to the power supply member and the holding member having an integral structure, power supply for each of these members is not required. For this reason, the number of wirings can be reduced, the number of steps required for wiring can be reduced, and the reliability of electrical connection can be improved.

[0017]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 is a sectional view showing a main part of an antenna device for a mobile communication device according to an embodiment of the present invention. The antenna device 1 for a mobile communication device shown in FIG. Used for In FIG. 1, an antenna device 1 for a mobile communication device has an antenna element 3 slidable between a state of being pulled out and a state of being stored with respect to a mobile communication device main body 2, and a slidable support of the antenna element 3. The main body includes an attachment member 4, a power supply member 5, and a holding member 6. In FIG. 2, an antenna element 3 is a core wire 3A obtained by twisting a conductive wire such as NiTi.
And a tube 3B made of an insulating material such as nylon, vinyl chloride, or polyacetal which is coated on the outer periphery of the core wire 3A. The core wire 3A is exposed at both ends in the longitudinal direction. Although the internal structure is not shown at the upper end in FIGS. 1 and 2 among the longitudinal ends of the antenna element 3, a sleeve member 7 which is connected to the exposed core wire 3A to form a conductive portion, and the sleeve member 2, a cap 8 made of an insulating member such as ABS or polyacetal, which incorporates a coil antenna (not shown) electrically connected thereto, is attached to the lower end. As shown in FIG. A caulked conductive stopper member 9 is attached.

The sleeve member 7 is made of a conductive material such as brass (BsB), and when the antenna element 3 is stored inside the mobile communication device main body 2, the mounting member 4 described later is used.
A boss portion having a length that can face the window hole 4C is formed along the longitudinal direction. 1 and 2, the sleeve member 7 has a tapered outer peripheral surface at the lower end in the longitudinal direction. When the antenna element 3 is housed inside the communication device main body 2, the sleeve member 7 is provided inside an attachment member 4 described later. It is a guide part for facilitating insertion.

The mounting member 4 is a cylindrical member made of an insulating material such as ABS or polyacetal and having a hole formed in the center thereof so as to penetrate in the longitudinal direction. As shown in FIGS. In order from the upper end in the direction, a flange 4A mounted on the upper wall of the mobile communication device main body 2, a screw portion 4B screwed into the mobile communication device main body 2, and a position opposed to the center position are formed. A pair of window holes 4C and a groove 4D formed along the circumferential direction are provided.
The inner peripheral surface at the upper end of the through hole formed at the center of the mounting member 4 is tapered as shown in FIG. 2 to facilitate the introduction of the tapered surface of the sleeve member 7 described above. Such a tapered surface is also formed on the inner peripheral surface of the lower end of the through hole, and forms an introduction guide surface of a stopper member 9 described later.

The stopper member 9 is made of a conductive material such as brass (BsB), and forms another conductive portion of the antenna element 3 in addition to the sleeve material 7 described above.
As shown in FIG. 5, a boss having a length capable of facing the window 4C of the mounting member 4 when the antenna element 3 is pulled out from the mobile communication device main body 2 is provided. The lower end of the boss portion of the stopper member 9 is shaped to fit into a tapered surface formed on the inner peripheral surface of the lower end of the mounting member 4, and the outer diameter of the lowermost end continuous with the tapered surface of the antenna element 3. The diameter is larger than the outer diameter.
When the antenna element 3 is pulled out from the mobile communication device main body 2, the stopper member 9 can prevent the antenna element 3 from coming off by contacting the lowermost end continuous with the tapered surface to the lower end of the mounting member 4. . The stopper member 9 and the above-mentioned sleeve member 7 have a boss portion set to the same outer diameter (the outer diameter indicated by a symbol D in FIG. 2), and a power supply member described later when facing the window hole 4C of the mounting member 4. 5 can be contacted.

A power supply member 5 and a holding member 6 are mounted on the outer periphery of the mounting member 4. The power supply member 5 and the holding member 6 are formed integrally using a conductive elastic member such as phosphor bronze, and the power supply member 5 is aligned with the position of the window 4C of the mounting member 4 as shown in FIG. The holding member 6 has a small-diameter recess in a part of the longitudinal direction.
A part is constituted by a divided ring part. further,
The power supply member 5 and the holding member 6 have a common terminal lug 10.
Are provided integrally, and this terminal lug 10 is
As shown in (1), it is designed to be integrally attached to the terminal pattern 11A of the RF circuit board 11 disposed inside the mobile communication device main body 2. In this embodiment, the power supply member 5 and the holding member 6 are manufactured in advance by press working or the like, and a molding die (not shown) is used when the mounting member 4 is formed.
And is integrally formed with the mounting member 4. The contact piece constituting the power supply member 5 is formed with a convex portion as a contact for pressing against the outer peripheral surfaces of the sleeve member 7 and the stopper member 9 to form a power supply path.

The holding member 6 of the power supply member 5 and the holding member 6 integrally formed with the mounting member 4
Can be fitted into the recess formed in the groove 4D. As a result, the power supply member 5 extends in the longitudinal direction of the mounting member 4.
And the power supply member 5 can be exposed inside from the window 4C of the mounting member 4. The holding member 6 has an inner diameter set so that the outer peripheral surface of the mounting member 4 can be pressed within the groove 4C of the mounting member 4, thereby holding the outer peripheral surface of the mounting member 4 and providing a mobile communication device. The antenna element 3 pulled out from the main body 2 is held in that state.

Since the present embodiment has the above configuration,
Since the power supply member 5 and the holding member 6 are formed as an integral member, the power supply member 5 and the holding member 6 are mounted on the mounting member 4 by a single assembling operation.

On the other hand, the power supply member 5 mounted on the mounting member 4
As shown in FIG. 2, when the antenna element 3 is pulled out from the mobile communication device main body 2, the power supply member 5 of the holding member 6 comes into pressure contact with the outer peripheral surface of the boss portion of the stopper member 9,
When the antenna element 3 is stored in the mobile communication device main body 2, the antenna element 3 is pressed against the outer peripheral surface of the boss portion of the sleeve member 7 to form a power supply path.

The holding member 6 applies a pressing force to the sleeve member 7 and the stopper member 9 at the time of pulling out and storing of the antenna element 3 to prevent unnecessary sliding of the antenna element 3.

According to this embodiment, the antenna element 3
Member 7 and power supply member 5 forming a power supply path for
Contact portion or the contact portion between the stopper member 9 and the power supply member 5 is required at one location, so that the electrical contact resistance in the power supply path can be reduced. By the way,
The present inventor conducted an experiment on the contact resistance, and found that a very low resistance value of 10 to 30 mΩ was obtained, compared to the contact resistance of 80 to 160 mΩ in the conventional power supply line of this type of contact system. Further, according to this embodiment, the attachment member 4, since the plastic (insulating) BSB (conductive) Neu not a Re But good is enhanced electrostatic breakdown voltage only if the plastic. Note that, in the above-described embodiment, an example was given in which the holding member 6 was provided with a ring portion that was partly divided, but the holding member 6 is not limited to this and may have a contact piece structure.

In the above embodiment, when the antenna element 3 is stored in the mobile communication device main body 2, the sleeve member 7 and the power supply member 5 are pressed against each other, and the antenna element 3 is pulled out from the mobile communication device main body 2. When the stopper member 9 and the power supply member 5 are pressed against each other,
It is also possible to adopt the configuration shown in FIG. FIG. 4 is a schematic diagram for explaining the above configuration. In FIG. 4, the feeding member (indicated by reference numeral 5 ′ for convenience) has an inner diameter that is pressed against only a sleeve member 7 having a larger diameter than the antenna element 3. The dimensions are set, and the inner diameter of the holding member (indicated by reference numeral 6 ′ for convenience) is set so as to be pressed against only the outer peripheral surface of the stopper member 9. Power supply member 5 'and holding member 6'
Is similar to the configuration shown in FIG. In such a configuration, when the antenna element 3 is pulled out from the mobile communication device main body 2, the holding member 6 ′ comes into pressure contact with the outer peripheral surface of the stopper member 9 as shown in FIG. As a result, the antenna element 3 is held in the pulled-out state, and a power supply path to the antenna element 3 is formed by a contact portion between the holding member 6 ′ and the stopper member 9. In this case, the power supply member 5 ′ does not contact the outer peripheral surface of the antenna element 3. On the other hand, when the antenna element 3 is stored in the mobile communication device main body 2, the power supply member 5 ′ comes into pressure contact with the outer peripheral surface of the sleeve member 7. As a result, the antenna element 3 is held in the retracted state, and the power supply path to the antenna element 3 is constituted by a contact portion between the power supply member 5 ′ and the sleeve member 7. In this case, the holding member 6 ′ does not contact the stopper member 9 because it does not face the stopper member 9.

Next, an embodiment of the present invention will be described. Embodiment shown in FIG. 5, holds the stopper member 15 fixed to the antenna element 12 member 1
7 , the power feeding member 5 and the holding member 17 support the antenna element 12 at two positions in the longitudinal direction, thereby restricting the swing of the antenna element 12 in the drawn state. In the embodiment shown in FIG. 5, the same components as those shown in FIGS. 1 and 2 are denoted by the same reference numerals, and detailed description thereof will be omitted. The antenna element 12 in FIG. 5 is provided with the caps 8 in the upper end portion corresponding to one longitudinal end, the coil antenna and the sleeve member 13 which is electrically connected, which is equipped in the interior of the cap 8 Unlike the configuration shown in FIG. 1, the antenna element 12 has the same diameter. FIG.
FIG. 3 is a cross-sectional view showing a coupling structure between the antenna element 12 and the sleeve member 13. In the same figure, the upper end portion of the antenna element 12 has the remaining tube 12 </ b> B exposing the core wire 12 </ b> A bonded to the sleeve member 13. The sleeve member 13 integrated with the tube 12B and integrated with the appropriate method described above is attached to the cap 8 via the screw portion 13A. Sleeve member 13
A coil antenna 14 provided in the cap 8 is electrically connected to the upper end of the coil antenna 14.

On the other hand, in FIG.
At the lower end corresponding to the other end in the longitudinal direction of 2, a stopper member 15 which is electrically connected by caulking a core wire 12A constituting the antenna element 12 is fixed. The stopper member 15 has a larger diameter (D1> D2) than the outer diameter (D2) of the sleeve member 13 without having a boss unlike the configuration shown in FIG. As a result, the antenna element 12 is
When pulled out, the stopper member 15 can abut against the lower end of the mounting member 16 that slidably supports the antenna element 12 .

Unlike the configuration shown in FIG. 1, the mounting member 16 has a groove (a portion shown by a reference numeral 4D in FIG. 1) for disposing a holding member (a member shown by a reference numeral 6 in FIG. 1). Absent. That is, the mounting member 16 is formed in a shape excluding the groove in the configuration shown in FIG.
Only the flange 16A, the screw portion 16B, and the window 16C are provided as the same components as those shown in FIG.

The holding member 17 of the power supply member 5 and the holding member 17 shown in FIG. 5 is different from the structure shown in FIG. 1 and is constituted by a pair of contact pieces as shown in FIG. Are integrated with the power supply member 5 composed of the contact pieces of the above. The shapes of the power supply member 5 and the holding member 17 are specified by bending, and the power supply member 5 has an inner diameter that can be exposed to the inside from the window 16C of the mounting member 16 as shown in FIG. Is set, and the outer peripheral surface of the sleeve member 13 of the antenna element 12 can be pressed against the outer peripheral surface of the sleeve member 13. As shown in FIG. Thus, the outer peripheral surface of the stopper member 15 can be sandwiched. The power supply member 5 and the holding member 17 are attached by integrally forming a common terminal lug 10 and integrating the terminal lug 10 with an RF circuit board provided inside the mobile communication device main body 2. It is positioned with respect to the window 16C of the member 16 and the stopper member 15.

Since the present embodiment has the above configuration,
When the antenna element 12 is pulled out of the mobile communication device main body 2, as shown in FIG. 5, the feeding member 5 comes into pressure contact with the outer peripheral surface of the antenna element 12 and the holding member 17
Presses against the outer peripheral surface of the stopper member 15. This allows
A power supply path to the antenna element 12 is formed between the holding member 17 and the stopper member 15. In addition, the antenna element 12 in the pulled-out state is press-supported at two positions in the longitudinal direction by the power supply member 5 and the holding member 17, so that the cap 8 side is prevented from swinging, and the through-hole of the mounting member 16 is formed. Antenna element 12 due to processing error
Is prevented and the generation of noise is suppressed.

When the antenna element 12 is stored in the main body 2 of the mobile communication device, the power supply member 5
Is pressed against the outer peripheral surface of. Thereby, a power supply path to the antenna element 12 is formed between the power supply member 5 and the sleeve member 13.

According to the above-described embodiment, the number of contact points corresponding to the power supply path to the antenna element 12 is minimized, so that an increase in electrical contact resistance can be prevented. In addition, since the sleeve member 13 and the antenna element 12 have the same diameter, the power feeding member 5 is always in pressure contact with the antenna element 12, so that the antenna element 12 in the pulled-out state is prevented from swinging. There is no need for a complicated structure. Further, since the power supply member 5 is always in pressure contact with the antenna element 12, it can function as a guide when the antenna element 12 slides. Instability can be prevented.

Further, according to the present embodiment, since the power supply member 5 and the holding member 17 are formed by the contact pieces, the contact members can have different pressure contact forces, in particular, by having an inner diameter. The tolerance of the processing accuracy of the sleeve member 13 and the stopper member 15 pressed against these members can be given a margin. As a result, a power supply path to the antenna element 12 can be secured without significantly increasing the processing accuracy, and an increase in processing cost when the processing accuracy is increased can be suppressed.

Next, an embodiment of the present invention will be described. The embodiment shown in FIG. 9 is characterized in that the power supply member and the holding member formed integrally are constituted by a single rod member. In the embodiment shown in FIG. 9, the same components as those shown in FIG. 1 have the same reference numerals, and a detailed description thereof will be omitted. That is, the antenna element 3 in FIG. 9 is similar to the configuration shown in FIG.
A cap 8 and a sleeve member (for convenience, denoted by reference numeral 7 ') are provided at an upper end corresponding to one end in the longitudinal direction, and a stopper member (represented by reference numeral 9') is provided at a lower end corresponding to the other end in the longitudinal direction. Have been. On the other hand, unlike the configuration shown in FIG. 1, the mounting member (indicated by reference numeral 4 'for convenience) has a groove portion removed, and has the same configuration as that shown in FIG. 1 from the upper end corresponding to one end in the longitudinal direction. In this order, only the flange 4A ', the screw 4B' and the window 4C 'are formed. In the present embodiment, a recess 7 is formed in a part of the sleeve member 7 'and the stopper member 9' in the longitudinal direction.
A ′ and 9A ′ are respectively formed. Recess 7A ',
When the antenna element 3 is stored inside the mobile communication device main body 2, the recess 7A 'of the mounting member 4'
Is formed at a position facing the window portion 4C ′ of the
A 'is formed at a position facing the window 4A' of the mounting member 4 'when the antenna element 3 is pulled out from the mobile communication device main body 2 as shown in FIG.

As shown in FIGS. 10 and 11, a power supply member / holding member 20 made of a conductive rod member such as a piano wire is mounted on the window 4C 'of the mounting member 4'. The power supply member / holding member 20 is set to have an inner dimension capable of being pressed against the sleeve member 7 ′ and the stopper member 9 ′ corresponding to the conductive portion of the antenna element 3, respectively.
The R provided inside the mobile communication device main body 2 continuously with the pressure contact portion between the sleeve member 7 'and the stopper member 9'.
A terminal portion 20A integrated with a terminal pattern of an F circuit board (corresponding to a member denoted by reference numeral 11 in FIG. 1) is formed.

Since the present embodiment has the above configuration,
The power supply member / holding member 20 is connected to the terminal 2
0A is integrated with the window 4 of the mounting member 4 '.
It is positioned so as to face C ′. In this embodiment,
The power-supplying-member holding member 20 can be fitted into and pressed against one of the recesses 7A ′ and 9A ′ with respect to both the sleeve member 7 ′ and the stopper member 9 ′ forming the conductive portion of the antenna element 3. It has become.
For this reason, the antenna element 3 is
When drawn from the feeding member alternate holding member 20 is pressed against the stopper member 9 ', the antenna element 3 is stored inside the mobile communication device main body 2, the sleeve member
The power-supplying-member holding member 20 is pressed against 7 ′ . As a result, a power supply path for the antenna element 3 is constituted by a contact portion between the sleeve member 7 ′ or the stopper member 9 ′ and the power-supply-member holding member 20.

According to this embodiment, the antenna element 3
And the power supply member can be constituted by a single member, so that the configuration of the power supply mechanism can be simplified. In the above embodiment, it is assumed that the antenna element 3 slides between the extended position and the retracted position. However, it is possible to target the extended antenna element 3. In this case, The concave portion 7A 'formed in the sleeve member 7' is eliminated, the concave portion 9A 'is formed only in the stopper member 9', and the power-supplying-member holding member 20 is fitted and pressed into the concave portion 9A '. Accordingly, the power-supplying-member holding member 20 that fits and presses into the concave portion 9A ′ of the stopper member 9 ′ maintains the attitude of the antenna element 3 in the pulled-out state.

In the above embodiment, the single member is pressed against the conductive portion of the antenna element 3. However, the power supply member and the holding member may be integrally formed using a rod member. FIG. 12 is a schematic diagram showing the above-described configuration. In FIG. 12, unlike the configuration shown in FIG. 9, the stopper member 9 ′ has a recess (indicated by reference numeral 9 B ′) for the window 4 C of the mounting member 4. It is formed on the outer peripheral surface of a portion that is located at the lower end of the mounting member 4 and has a diameter larger than that of the mounting member 4 instead of the position facing the mounting member 4. On the other hand, the window 4C of the mounting member 4 and the recess 9 of the stopper member 9 '
A power supply member 21 and a holding member 22 are arranged at B ′ so as to be able to face each other. As shown in FIGS. 13 and 14, the power supply member 21 and the holding member 22 are formed by continuously bending a single conductive rod member to fit into the recess 7A 'of the sleeve member 7'. The stopper member 9 'is formed by forming a portion that fits into the recess 9'. Power supply member 21 and holding member 22
As shown in FIGS. 13 and 14, a common terminal portion 23 is formed continuously to a portion fitted to each of the recesses 7A 'and 9B', and the terminal portion 23 is formed of an RF circuit board. It is integrated with the terminal pattern (portion indicated by reference numeral 11A in FIG. 1) of the member indicated by reference numeral 11 in FIG. In such a configuration, when the antenna element 3 is pulled out of the mobile communication device main body 2, as shown in FIG. 12, the holding member 22 fits into the concave portion 9B 'of the stopper member 9' and presses against the antenna. When the element 3 is held in the withdrawn position and the antenna element 3 is stored inside the mobile communication device main body 2, the sleeve member 7 '
The antenna element 3 is held in the retracted position by the power feeding member 21 being fitted into and pressed into the concave portion 7A ′ of the antenna element 3. In the above configuration, the antenna element 3 in the withdrawn position
A power supply path to the antenna element 3 in the retracted position is formed by a contact portion between the sleeve member 7 ′ and the power supply member 21. .

Next, an embodiment of the invention will be described. The invention according to claim 5 is characterized in that power is directly supplied to the power supply member and the holding member described in each of the above embodiments. That is, in FIG. 1, the power supply member 5 and the holding member 6 are provided with a terminal lug 10 that constitutes a common terminal portion.
Is supplied from the RF circuit board 11.

According to this embodiment, power can be supplied directly to the power supply member and the holding member, so that the power supply mechanism can be simplified as compared with the case where power is supplied individually.
The method of directly supplying power to the power supply member and the holding member is not limited to the embodiment shown in FIG. 1, but is also the same in the examples shown in FIGS. 5, 9, and 12.

[0043]

As described above, according to the first aspect of the present invention, the power supply member and the holding member capable of supplying power to the antenna element in both the state where the antenna element is pulled out and the state where the antenna element is stored are : Elasticity
Mobile communication device
Since it is attached to the mounting member provided in the main body of the container,
Attachment part of power supply member and holding member in longitudinal direction of attachment member
Positioning with respect to the material, and
Unnecessary sliding of the antenna element is prevented by the applied pressure
To stop the antenna element pulled out of the main body of the mobile communication device.
Can be held in that state. Also, because necessary to provide the feed mechanism when that maintain the state of the individual had name increase in contact resistance by to minimize the contact portion present in the feed path are suppressed, moreover,
The components used for the power supply mechanism can be easily managed and the number of assembling steps can be reduced.

According to the second and third aspects of the present invention, the members used to maintain the drawn-out state and the stored state of the antenna element can be used as the feeding mechanism of the antenna element.
A special structure is not required as the power supply mechanism, and the number of components can be reduced. In addition, since the antenna element and the conductive portion of the antenna element have the same diameter, the power supply member is always in pressure contact with the antenna element. As a result, even when the number of contact points corresponding to the feed path is reduced, the antenna element when pulled out is held at two positions in the longitudinal direction by the holding action of the stopper portion by the holding member and the pressing action by the feed member. State.
Occurrence of shaking due to vibration or the like is prevented, and furthermore, sliding guidance of the antenna element is reliably performed, so that operability of the antenna device can be improved.

According to the fourth aspect of the present invention, since the power supply member and the holding member are formed of a single rod member that can contact at least the conductive portion of the antenna element, a power supply mechanism with a simple structure is provided. can get.

According to the fifth aspect of the present invention, since power is directly supplied to the power supply member and the holding member having an integral structure, power supply for each of these members is not required. For this reason, the number of wirings can be reduced, the number of steps required for wiring can be reduced, and the reliability of electrical connection can be improved.

[Brief description of the drawings]

FIG. 1 is a local sectional view showing a main part of an antenna device for a mobile communication device for explaining an embodiment of the invention described in claim 1;

FIG. 2 is a sectional view taken in the direction of an arrow L2 in FIG.

FIG. 3 is a perspective view for describing a configuration of a power supply member and a holding member used in the antenna device for a mobile communication device shown in FIG.

FIG. 4 is a schematic diagram for explaining a modification of a configuration of a main part of the antenna device for a mobile communication device shown in FIG. 1;

FIG. 5 is a diagram showing a main part of an antenna device for a mobile communication device for explaining an embodiment of the invention described in claims 2 and 3;
FIG. 4 is a considerable local sectional view.

FIG. 6 is an enlarged sectional view of a portion indicated by reference numeral L6 in FIG.

FIG. 7 is a perspective view illustrating a configuration of a power supply member and a holding member used in the antenna device for a mobile communication device illustrated in FIG. 5;

FIG. 8 is an arrow view in a direction indicated by reference numeral L8 in FIG.

FIG. 9 is a local sectional view showing a main part of an antenna device for mobile communication equipment for explaining an embodiment of the invention described in claim 4;

FIG. 10 is an arrow view in a direction indicated by reference numeral L10 in FIG.

FIG. 11 is a perspective view for explaining the structure of a power-supplying-member holding member used in the main part shown in FIG. 10;

FIG. 12 is a local sectional view showing a modification of the main part shown in FIG. 9;

FIG. 13 is a view in the direction of the arrow L13 in FIG.

FIG. 14 is a perspective view for explaining a structure of a power supply member and a holding member used in the modification shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mobile communication equipment antenna apparatus 2 Mobile communication equipment main body 3, 12 Antenna element 4, 16 Attachment member 5, 21 Power supply member 6, 17, 22 Holding member 7, 13 Sleeve member 9, one of conductive parts 9, 15 Conductivity Stopper member which is another one of the parts

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-9-130118 (JP, A) JP-A-9-98008 (JP, A) JP-A-6-268420 (JP, A) JP-A-7-130 154119 (JP, A) JP-A-6-152463 (JP, A) JP-A-8-111608 (JP, A) JP-A-4-336803 (JP, A) JP-A-60-107903 (JP, A) JP-A-49-104548 (JP, A) JP-A-7-94924 (JP, A) Japanese Utility Model Showa 62-47208 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01Q 1/24 H01Q 1/10

Claims (5)

(57) [Claims] An antenna element attached to a mobile communication device, wherein the antenna device selects one of a state of being pulled out from a main body of the mobile communication device and a state of being stored in the main body of the mobile communication device. a pressure <br/> against possible power supply member for the conductive portion provided on, and a clamping pressure retention members for some of the antenna element, the feeding member and the holding member, Integrated with elastic members
And the above antenna element is inserted
Mounting part inserted into the main body of the mobile communication device
An antenna device for a mobile communication device, wherein the antenna device is mounted on a member . 2. The communication device antenna device according to claim 1, wherein the antenna element is slidably supported between a storage position and a pull-out position by a mounting member provided on a main body of the mobile communication device. In addition, a stopper member is provided at an end in the longitudinal direction that is prevented from coming off by abutting on the mounting member when pulled out, and the power supply member presses against a conductive portion of the antenna element and stores the antenna element. The holding member is arranged at a position where the holding element can be maintained in a pulled-out state by applying a clamping force to the stopper member. For mobile communication equipment. 3. The antenna device for a mobile communication device according to claim 2, wherein said antenna element has a conductive portion at an end opposite to an end where said stopper member is located in a longitudinal direction, and said conductive portion. Has the same diameter as the antenna element, and the stopper member has a larger diameter than the antenna element . 4. The antenna device for a mobile communication device according to claim 2, wherein the power supply member and the holding member can elastically contact at least the conductive portion of the conductive portion and the stopper member of the antenna element. An antenna device for a mobile communication device, comprising: a single rod member. 5. A power supply method for an antenna for a mobile communication device according to claim 1, wherein power is supplied directly to the power supply member and the holding member. Power supply method for the device.