WO2005038982A1 - アンテナコイルおよびアンテナ装置 - Google Patents
アンテナコイルおよびアンテナ装置 Download PDFInfo
- Publication number
- WO2005038982A1 WO2005038982A1 PCT/JP2004/015187 JP2004015187W WO2005038982A1 WO 2005038982 A1 WO2005038982 A1 WO 2005038982A1 JP 2004015187 W JP2004015187 W JP 2004015187W WO 2005038982 A1 WO2005038982 A1 WO 2005038982A1
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- WO
- WIPO (PCT)
- Prior art keywords
- connector
- core
- winding
- bobbin
- hole
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
- H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/1207—Supports; Mounting means for fastening a rigid aerial element
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/20—Resilient mountings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
- H01Q1/3216—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used where the road or rail vehicle is only used as transportation means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
- H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
- H01Q7/08—Ferrite rod or like elongated core
Definitions
- the present invention relates to an antenna coil and an antenna device used for transmitting and receiving radio waves.
- Patent Document 1 discloses a ferrite antenna.
- the ferrite antenna includes a rod-shaped ferrite core, a coil bobbin into which the ferrite core is inserted, a main coil wound around the coil bobbin, and small coils disposed on both sides of the main coil. .
- the main coil is moved in the length direction of the ferrite core to change the inductance and perform tracking adjustment.
- the electric connection between each of the small coils and the main coil uses the windings constituting these coils as they are.
- the main coil is moved to set the reactance value of the ferrite antenna to a desired value and the main coil is released, the main coil is connected by the winding that connects the small coil and the main coil.
- the position of the main coil is likely to shift due to the coil being pulled. Also, even if the main coil is held down with a hand or the like and stopped with resin or tape, the position of the main coil shifts until the resin cures, or the adhesive strength of the tape decreases. The position of the main coil is likely to shift. As a result, the reactance value of the finished product Is easy to vary.
- the length of the winding connecting the small coil and the main coil must be increased to allow a margin for the adjustment range of the main coil. It is conceivable to have a length that has However, if the length of the winding connecting the small coil and the main coil is lengthened, this wiring will swing due to vibrations applied to the ferrite antenna and other catastrophic problems such as disconnection will occur. It is easy to happen. In addition, since the winding connecting the small coil and the main coil moves, the reactance value becomes difficult to stabilize.
- the inventor has conducted intensive studies in order to solve the above-mentioned problems. As a result, the inventor has completed the present invention.
- An object of the present invention is to provide an antenna coil and an antenna device in which the position of a winding is easily adjusted, and the position of the winding is not easily shifted after the adjustment.
- An antenna coil according to the present invention includes a core made of a magnetic material formed in a rod shape, a pobin having a through hole into which the core is inserted, and a length between the bobbin and the core in a state where the core is inserted into the through hole.
- a connecting portion fixed to the bobbin so as to extend along the vertical direction, a winding wound on the bobbin, and a terminal connected to the connecting portion; and a connecting portion provided at a position in the length direction of the core.
- a connector terminal for fixing the position of the winding in the length direction of the core. In this configuration, the winding is electrically connected to the connector terminal via the connecting portion.
- the reactance value can be set to a desired value by moving the winding together with the bobbin in the length direction of the core.
- the coil remains with the bobbin at that position.
- no force is generated between the coil and the connector terminal together with the bobbin along with the expansion and contraction of the winding.
- the position of the coil is adjusted together with the bobbin so as to obtain a desired reactance value.
- the winding can be positioned at a position where the desired reactance value can be obtained simply by fixing the connection portion and the connector terminal after the adjustment by soldering or the like. As a result, the position of the winding does not shift after the adjustment, and the variation in the reactance value in the finished product can be suppressed.
- the position of the winding can be fixed by fixing the connecting portion with the connector terminal, the time required for the resin to dry, such as when the coil is sealed with an insulating resin or the like together with the bobbin.
- the next operation can be started without waiting for (the curing time of the adhesive) to elapse. As a result, assembly time can be reduced.
- the connector terminal is provided on a connector main body having another through hole into which the core is inserted.
- the connector body can also be moved in the length direction of the core. Therefore, the position of the connector terminal in the antenna coil can be easily changed without changing the basic structure of the antenna coil. As a result, for example, antenna coils of multiple specifications with the same required reactance value and different connector terminal positions However, even when a single antenna coil is required, a single type of antenna coil can meet those specifications. .
- the connecting portion is a rigid member, and the connector body has a second through-hole formed along another through-hole. The portion is inserted into the second through-hole.
- the connecting portion is made of a rigid material, and both ends thereof are held by the bobbin and the core connector body. Therefore, compared to the case where the pobin and the connector are connected by a winding, even if vibration is applied to the antenna coil, it is less likely to vibrate, and a fatal defect such as an electrical disconnection is less likely to occur.
- connection between the bobbin and the connector is not loosened. Therefore, it is unlikely that the reactance value fluctuates due to the slack wiring swinging due to vibration, as in the conventional case where the wiring is loose between the winding and the connector. Absent.
- the antenna coil according to the present invention has a configuration in which a capacitor is provided in the connector body and a connector terminal is connected to the capacitor, in addition to the configuration of each of the above-described inventions.
- a resonance circuit of the coil and the capacitor is formed in the antenna coil.
- characteristics such as the resonance frequency of the resonance circuit can be easily adjusted to predetermined characteristics.
- the influence of the length of the wiring between the coil and the capacitor is hardly affected, so that the characteristic variation as a resonance circuit can be suppressed. .
- the connecting portion has two conductive rigid members, and one end of the winding is connected to the connecting portion.
- the other end of the winding is connected to another one of the connecting members
- the connector terminal has two conductive joints
- the connector terminal has One joint fixes the rigid member of the connecting part to which one end of the winding is connected, and another one of the connector terminals connects the connecting part to which the other end of the winding is connected. This is for fixing the rigid member.
- the winding can be connected to the radio circuit via the connector terminal, and there is no need to provide a conductor that easily breaks from the winding and the bobbin to the outside of the antenna coil. .
- An antenna device includes any one of the above-described antenna coils according to the present invention, a holder in which an antenna coil is housed in a housing formed by a holder main body and a side surface erected on the holder main body. And a cover that seals the housing.
- the entire antenna coil can be covered with the holder and the cover. As a result, stable electrical characteristics can be obtained over a long period of time.
- the connector terminal of the antenna coil is disposed on a connector main body having another through hole into which the core is inserted, and
- the connector body of the coil is formed with engaging portions that engage with each other and determine the position of the connector body in the length direction of the core.
- the connector main body of the antenna coil is engaged with the side surface of the holder by these engaging portions. Therefore, the connector main body of the antenna coil and the bobbin (and, consequently, the winding) connected thereto via the connecting portion can be fixed at a desired position in the housing portion.
- the antenna device has, in addition to the configuration of each of the above-described inventions, a through hole into which the core of the antenna coil is inserted, and a depth of the housing portion.
- the cover has two higher cushion materials, and the cover hermetically seals the housing portion by the engagement piece provided therein being inserted into a through hole formed in the holder body.
- FIG. 1 is an exploded perspective view showing an antenna device according to an embodiment of the present invention.
- FIG. 2 is a perspective view for explaining a first assembly process of the antenna device shown in FIG.
- FIG. 3 is a perspective view for explaining a second assembling step of the antenna device shown in FIG.
- FIG. 4 is a side view for explaining a third assembling step of the antenna device shown in FIG.
- FIG. 5 is a diagram showing an example of use of the antenna device shown in FIG. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is an exploded perspective view showing an antenna device 10 according to an embodiment of the present invention.
- the antenna device 10 has a bobbin 1, a connector 2, a core 3, two cushion members 4, 5, a honoreda 6, and a force par 7.
- the bobbin 1 has a bobbin main body 11.
- the bobbin main body 11 is made of an insulating material such as an insulating plastic, and has an approximately rectangular parallelepiped outer shape.
- a flange is formed at an end of a pair of opposing surfaces of the bobbin main body 11, and a winding is wound around the other four surfaces.
- the outer shape of the pobin main body 11 may be formed in a cubic shape having the same size on six sides, or may be formed in a cylindrical shape.
- the upper surface of the paper in the posture shown in Fig. 1 is referred to as the upper surface 11a of the bobbin main body 11, and the wide side on the paper is referred to as the long side surface 1 lb of the bobbin main body 11.
- the short side of the bobbin body 11 is described as the short side surface 11 c of the bobbin body 11, and the surface facing the upper surface 11 a of the bobbin body 11 is the lower surface 1 of the bobbin body 11.
- a through hole 12 is formed in the bobbin main body 11 along the longitudinal direction of the rectangular parallelepiped. Thereby, openings are formed in the two short side surfaces 11 c of the bobbin main body 11.
- This through hole 12 has a rectangular cross-sectional shape.
- the cross-sectional shape of the through hole 12 may be square or circular. Further, the cross-sectional shape of the through hole 12 may be similar to the outer shape of the bobbin main body 11. In this case, the bobbin main body 11 is formed to have a substantially uniform thin thickness.
- a recess 13 is formed in the bobbin main body 11 by a side flange.
- This recess 13 is composed of two upper surfaces 1 1a and two long It is formed over the entire circumference of the side surface 11b and the lower surface 11d.
- a winding 14 made of a conductive material such as a copper wire is wound in the recess 13. As a result, a coil is formed. Since the both ends of the bobbin main body 11 in the longitudinal direction have flanges, the winding wire 14 does not come off from the bobbin main body 11. Further, since both ends of the bobbin main body 11 in the longitudinal direction have flanges, the winding 14 can be started to be wound from one of the both ends, and the winding 14 is wound around the bobbin main body 11. It becomes easier to put on.
- the long terminal 15 is a metallic rigid member such as steel or aluminum which is harder than the wound wire 14, and has a long terminal main body 15 a and two projecting portions 15 b and 15 c.
- the long terminal main body 15a has a rod shape.
- the two protruding portions 15b and 15c protrude in a direction perpendicular to the longitudinal direction of the long terminal main body 15a at a portion near one end of the long terminal main body 15a.
- the long terminal 15 is fixed at one end of the long terminal main body 15a at a position closer to the surface 11a on the surface 11c of the bobbin main body 11.
- the fixing of the long terminal 15 is performed by inserting one end of the long terminal main body 15 a into a fitting hole formed in the bobbin main body 11. Further, the two long terminals 15 are arranged such that the long terminal bodies 15a are substantially parallel to each other, and the bobbin main body 1a is in a position along the length direction of the through hole 12 of the bobbin main body 11. Fixed to 1.
- Both ends of the winding 14 are connected to the protruding portions 15b closer to the other ends (tips) of the two long terminals 15 by soldering or the like. Further, the protruding portion 15c near one end (fixed end) of each long terminal 15 is bent, and both ends of the winding 14 are sandwiched by the bent protruding portion 15c. Thus, even if a force is applied to the winding 14 such that the winding 14 is moved in the longitudinal direction of the bobbin body 11 due to vibration or the like, the force acts on the connecting portion. It becomes difficult.
- the connector 2 has a connector main body 2 1.
- the connector body 21 is made of an insulating material such as insulating plastic and is formed in a substantially rectangular parallelepiped shape.
- the outer shape of the connector body 21 may be formed in a substantially cylindrical shape.
- the upper surface of the paper surface in the posture shown in FIG. 1 is referred to as the upper surface 21 a of the connector main body 21, and a pair of opposing side surfaces on the paper surface are each referred to as a connector main body.
- 21 1st side 2 1b, and another set of opposing sides out of the paper surface are described as the second side 21 c of the connector body 21, and the connector body
- the surface facing the upper surface 21 a of the connector 21 is referred to as the lower surface 21 d of the connector body 21.
- the connector body 21 has a through hole 22 as another through hole. As a result, openings are formed in the two second side surfaces 21 c of the connector body 21.
- This through hole 22 has a rectangular cross-sectional shape.
- the cross-sectional shape of the through hole 22 may be square or circular. However, it is desirable that the through hole 22 of the connector body 21 has the same cross-sectional shape as the through hole 12 of the bobbin body 11.
- rib portions 23 as engagement portions are respectively formed on the two first side surfaces 21b of the connector body 21, rib portions 23 as engagement portions are respectively formed.
- the rib portion 23 is formed at a position near the lower surface 21 d of the first side surface 21 b so as to be perpendicular to the lower surface 21 d. That is, the portion of the first side surface 21 b closer to the lower surface 21 d has a cutout shape leaving the rib portion 23.
- a second through hole 24 is formed in the connector body 21 in parallel with the through hole 22.
- openings are formed in the two second side surfaces 21 c of the connector main body 21 at positions closer to the upper surface 21 a than the through holes 22.
- the connector 2 has two connector terminals 25.
- the connector terminal 25 is made of a conductive material, and a part thereof is connected to one of the two second sides 2 Ic. It protrudes from between the second through hole 24 on the second side and the upper surface 21a.
- a bent portion 25b protruding in the vertical direction of the protruding direction is formed at the tip of the protruding portion 25a of the connector terminal 25.
- the bent portion 25b is further bent to the lower side of the protruding portion 25a.
- a gap is formed between the bent portion 25b and the protruding portion 25a.
- a capacitor 26 is provided on the upper surface 21 a of the connector body 21. This capacitor 26 is soldered to one connector terminal 25 of the two connector terminals 25. A resonance circuit is formed by the capacitor 26 and the winding 14.
- the groove 27 is formed perpendicular to the surface 21a on each of the two surfaces 21b, and the terminal 27 is provided at an end of the groove 27 on the surface 21a side.
- This terminal 27 is electrically connected to a resonance circuit including a capacitor 26 and a winding 14.
- An external wireless circuit, wiring, and the like are connected to the terminal 27.
- the core 3 is made of a magnetic material such as nickel zinc ferrite and manganese zinc ferrite, and has a rod shape.
- the core 3 has a rectangular cross-sectional shape that is substantially the same as the through hole 12 of the bobbin 1 and the through hole 22 of the connector 2 or slightly smaller than the through holes 12 and 22. That is, the cross-sectional shape of the core 3 is such that when the core 3 is inserted into the through-holes 12 and 22, the through-holes 12 and 22 are slidable.
- the cross-sectional shape of the core 3 may be square or circular.
- the holder 6 has a holder body 31.
- the holder body 31 is made of an insulating material such as an insulating plastic and is formed in a flat plate shape longer than the length of the core 3. At both ends of the holder body 31, through holes 32 are formed.
- the holder body 31 has two long side surfaces 3 3 as side surfaces and a side surface.
- the two short side portions 3 4 and 4 are erected.
- the two long side portions 33 and the two short side portions 34 together with the holder body 31 form a rectangular box shape without a lid.
- this rectangular box is referred to as a storage section 35.
- the inside of the housing portion 35 is longer than the core 3 and is equal to or slightly wider than the width of the short side surface 11 c of the bobbin main body 11 and the width of the second side surface 21 c of the connector main body 21. Formed in width.
- One notch 36 as an engagement portion is formed in each of the two long side surfaces 33. Further, the two long side surfaces 33 are erected at a position slightly inside the outer periphery of the holder main body 31. Then, three through holes 37 are formed on each side between the long side surface portion 33 and the outer peripheral edge of the holder main body 31.
- a notch 38 is formed in the long side portion 33, and a through hole 39 (see FIG. 4) extending from the notch 38 in the long side portion 33 is formed in the holder body 31. Is done.
- the cover 7 has a cover body 41.
- the cover body 41 is made of an insulating material such as an insulating plastic and is formed in a long flat plate shape.
- the long side of the cover body 41 has the same length as the long side portion 33 of the holder 6, and the short side of the cover body 41 has the same length as the short side portion 34 of the holder 6.
- six engaging pieces 42 are erected on the cover body 41.
- the six engagement pieces 42 are arranged three by three along the long side of the cover body 41.
- the cushion members 4 and 5 have a cushion body 51.
- the cushion body 51 is made of a flexible rubber material and is formed in a vertically long cube.
- the height of the cushion body 51 is formed slightly higher than the depth of the housing portion 35.
- a through hole 52 is formed in the cushion body 51.
- the through hole 52 of this cushion is the same as or similar to the outer shape of the core 3. Are formed one size smaller than that.
- FIG. 2 is a perspective view for explaining a first assembly process of the antenna device 10 shown in FIG.
- the core 3 is inserted into the through hole 12 of the bobbin 1 to which the two long terminals 15 are fixed and the through hole 22 of the connector 2.
- the two long terminals 15 of the bobbin 1 are connected to the gap between the projecting portion 25 a and the bent portion 25 b of the connector terminal 25 and to the second through hole 24 of the connector 2. Enter.
- FIG. 3 is a perspective view for explaining a second assembling step of the antenna device 10 shown in FIG. After that, insert both ends of the core 3 into which the bobbin 1 and the connector 2 are inserted into the through holes 52 of the cushion members 4 and 5, respectively.
- FIG. 4 is a side view for explaining a third assembling step of the antenna device 10 shown in FIG.
- the core 3 to which the bobbin 1, the connector 2 and the two cushion members 4, 5 are attached is inserted into the holder 35 of the holder 6.
- the two cushion members 4 and 5 are disposed at positions adjacent to the two short side portions 34.
- the two ribs 23 of the connector 2 are inserted into the notches 36 of the holder 6, respectively.
- the groove 27 of the connector 2 is arranged at a position that is continuous with the notch 38. As a result, the position of the connector 2 in the housing portion 35 is fixed, and even if the holder 6 is moved in the housing portion 35, the connector 2 does not move.
- the bobbin 1 is moved in the length direction of the core 3 to adjust the resonance frequency of the antenna device 10.
- the pobin 1 is not fixed and is slidable along the length of the core 3.
- the capacitor 26 and the other An AC voltage having a predetermined resonance frequency is applied to the connector terminal 25, and the impedance is measured while changing the position of the bobbin 1, that is, the winding 14 in the length direction of the core 3, and the impedance is measured.
- the pobin 1, that is, the winding 14, is placed at a position at which the peak value is reached. Thereby, the reactance value by the winding 14 and the core 3 becomes a desired value.
- the long terminal 15 and the connector terminal 25 are fixed in this state.
- a force is applied to the two connector terminals 25 of the connector 2 from above (that is, from the side opposite to the core 3), and the bent portion 25b is brought into contact with the core 3 so that the long terminal 15 and the connector Crimp terminal 25.
- the two long terminals 15 and the two connector terminals 25 are soldered.
- the electrical connection between the long terminal 15 and the connector terminal 25 is strengthened, in combination with the fact that the bent portion 25 b bites into the lower surface of the long terminal 15.
- an insulating adhesive may be further applied around the bobbin 1 and the connector 2 so that they may not easily move.
- cover 7 is put on receiving portion 35 of holder 6.
- the six engagement pieces 42 of the cover 17 are inserted into the through holes 37 of the holder 6, respectively.
- the cover 7 is pushed in until the tip of the engagement piece 42 is hooked on the holder 6, so that the inside of the housing portion 35 is sealed by the cover body 41.
- the two cushion members 4 and 5 are slightly crushed by the cover body 41, and both ends of the core 3 are pinched by the pressing force of the cushion members 4 and 5. Will be done.
- the core 3 becomes difficult to move in the accommodation portion 35, and the relative positional relationship between the core 3 and the bobbin 1 adjusted previously can be maintained.
- FIG. 5 is a diagram showing a usage example of the antenna device 10 shown in FIG.
- the antenna device 10 shown in FIG. The holes 32 are riveted or screwed and arranged, for example, inside the door 61 of a motor vehicle.
- the antenna device 10 may be disposed inside a bumper or console of a car.
- two terminals 28 of the connector 2 are connected to a keyless entry control device 63 and the like by wiring 62 called a harness of an automobile.
- the antenna device 10 outputs a signal based on the radio wave to the keyless entry control device 63.
- the keyless entry control device 63 has a wireless circuit, and performs locking and unlocking based on a signal obtained by wireless.
- the winding 14 is electrically connected to the connector terminal 25 via the long terminal 15. Therefore, the reactance value can be set to a desired value by moving the bobbin 1 and thus the winding 14 in the length direction of the core 3. In particular, even if bobbin 1 (and thus winding 14) is moved along the length of core 3 and positioned at a desired position and then released, bobbin 1 (and thus winding 14) remains , But stays at the position where it was positioned.
- the position of the bobbin 1 (and, consequently, the winding 14) is adjusted and adjusted so as to obtain a desired reactance value.
- the winding 14 can be positioned at a position where the desired reactance value can be obtained. As a result, the position of winding 14 will not shift after adjustment. Therefore, it is possible to suppress the variation in the reactance value in the finished product. Further, since it is only necessary to fix the metal long terminal 15 and the connector terminal 25, the time required for the resin to dry such as when the winding 14 is sealed with an insulating resin or the like. The next operation can be started without waiting for (the curing time of the adhesive). As a result, assembly time can be reduced.
- the connector terminal 25 is provided in the connector body 21 having the through hole 22 into which the core 3 is inserted, the connector body 21 is also moved in the length direction of the core 3. be able to. Therefore, the position of the connector terminal 25 in the antenna device 10 can be easily changed without changing the basic structure of the antenna device 10. As a result, even if, for example, antenna devices 10 of a plurality of specifications are required in which the required reactance values are the same and the positions of connector terminals 25 are different, it is necessary to use one type of antenna device 10. It can correspond to the specification of.
- the long terminal 15 is a rigid member
- the connector body 21 has a second through hole formed along the through hole 22
- the long terminal 15 has a second through hole. Inserted into the hole. Therefore, the long terminal 15 is formed into a long terminal shape by using a material having strength higher than that of the coil winding 14, and both ends of the long terminal 15 are formed by the bobbin 1, the core 3, and the connector body 21. Maintained by Therefore, compared to the case where bobbin 1 and connector 2 are connected by winding 14, even if vibration is applied to antenna device 10, vibration is less likely to occur, and electrical disconnection is caused. Critical defects such as are unlikely to occur. Also, the long terminal 15 is not loosened between the bobbin 1 and the connector 2. Therefore, the reactance value fluctuates due to the slack wiring being moved by vibration or the like, as in the conventional case where the wiring is loosened between the winding 14 and the connector 2. Is What?
- a capacitor 26 is provided on connector body 21, and connector terminal 25 is connected to capacitor 26. That is, in the antenna device 10, a resonance circuit including the coil winding ⁇ 14 and the capacitor 26 is formed.
- characteristics such as the resonance frequency of the resonance circuit can be easily adjusted to predetermined characteristics.
- the coil winding 14 and the capacitor 26 are separately provided, it is less affected by the length of the wiring between the coil winding 14 and the capacitor 26. Therefore, it is possible to suppress the characteristic variation as a resonance circuit.
- both ends of the winding 14 are connected to two long terminals 15 made of a rigid material
- the connector terminal 25 has two conductive joints 28, and the connector terminal One joint 28 of 25 fixes the long terminal 15 to which one terminal of the winding 14 is connected, and another joint 28 of the connector terminal 25 forms the winding 14 It fixes the long terminal 15 to which the other terminal is connected. Therefore, the winding 11 can be connected to the wireless circuit via the connector terminal 25, and there is no need to provide a wire or the like that is easily disconnected from the winding 14 and the bobbin 1 to the outside of the antenna coil. It disappears.
- the entire antenna coil including the core 3, the bobbin 1 and the connector 2 is covered by the holder 6 and the cover 7. As a result, stable electrical characteristics can be obtained over a long period of time.
- the notch 36 is formed in the long side surface portion 33
- the rib 23 is formed in the connector body 21, and the rib 23 engages with the notch 36.
- the connector body 21 and the bobbin 1 (and thus the winding wire 14) connected to the connector body 21 can be fixed at a desired position in the housing portion 35.
- the cover 7 is provided on the same. The housing 35 is sealed by inserting the engagement piece 42 into the through hole 37 formed in the holder body 31.
- the two cushion members 4 and 5 are sandwiched between the cover 7 and the holder body 31 and are crushed. Then, the core 3 is held by the pressing force of the cushion members 4, 5, so that the position of the core 3 in the storage portion 35 is fixed. Therefore, the positions of the connector body 21, the bobbin 1, the winding wire 14, and the core 3 in the housing portion 35 can be fixed without using a fixing member such as a screw or an adhesive. As a result, the relative positional relationship between the core 3 and the bobbin 1 can be maintained at a desired adjustment position.
- the winding 14 of the bobbin 1 is connected to the connector terminal 25 by the long terminal 15.
- a protruding portion may be formed on the bobbin 1, and a wiring instead of the long terminal 15 may be formed on the protruding portion.
- the tip of the winding 14 may be extended, and the extended portion may be embedded in the protruding portion.
- the capacitor 26 is provided on the connector 2, but if possible, the capacitor 26 is not provided on the connector 2, and is provided on the circuit side such as the key entry controller 63.
- the connector 2 and the holder 6 are separate members, but may be formed as a body. Industrial applicability
- the antenna coil and the antenna device according to the present invention can be used, for example, as a transmitting and / or receiving antenna of a keyless entry system of an automobile, or as an antenna for transmitting and / or receiving other radio waves. .
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Abstract
Description
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Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2004800300814A CN1868090B (zh) | 2003-10-16 | 2004-10-07 | 天线线圈及天线装置 |
JP2005514777A JP4134173B2 (ja) | 2003-10-16 | 2004-10-07 | アンテナコイルおよびアンテナ装置 |
EP04792415A EP1684380B1 (en) | 2003-10-16 | 2004-10-07 | Antenna coil and antenna device |
US10/575,941 US7427963B2 (en) | 2003-10-16 | 2004-10-07 | Antenna coil and antenna device |
CA002542260A CA2542260C (en) | 2003-10-16 | 2004-10-07 | Antenna coil and antenna device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003355937 | 2003-10-16 | ||
JP2003-355937 | 2003-10-16 |
Publications (1)
Publication Number | Publication Date |
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WO2005038982A1 true WO2005038982A1 (ja) | 2005-04-28 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2004/015187 WO2005038982A1 (ja) | 2003-10-16 | 2004-10-07 | アンテナコイルおよびアンテナ装置 |
Country Status (9)
Country | Link |
---|---|
US (1) | US7427963B2 (ja) |
EP (1) | EP1684380B1 (ja) |
JP (1) | JP4134173B2 (ja) |
KR (1) | KR100703147B1 (ja) |
CN (1) | CN1868090B (ja) |
CA (1) | CA2542260C (ja) |
RU (1) | RU2321926C2 (ja) |
TW (1) | TWI281288B (ja) |
WO (1) | WO2005038982A1 (ja) |
Cited By (5)
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JP2009152784A (ja) * | 2007-12-19 | 2009-07-09 | Tokai Rika Co Ltd | 樹脂部材の嵌合構造及び車室内アンテナ装置 |
JP2015204557A (ja) * | 2014-04-15 | 2015-11-16 | スミダコーポレーション株式会社 | アンテナ装置およびアンテナ装置の製造方法 |
JP2018186475A (ja) * | 2017-04-27 | 2018-11-22 | パナソニックIpマネジメント株式会社 | アンテナ装置、及びこれを備えたドアハンドル、移動体 |
US11063361B2 (en) | 2017-05-26 | 2021-07-13 | Murata Manufacturing Co., Ltd. | Antenna coil |
JP2021190999A (ja) * | 2020-05-26 | 2021-12-13 | プレモ,エスアー. | 広範囲・低周波アンテナ |
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US7557763B2 (en) * | 2005-10-18 | 2009-07-07 | Continental Automotive Systems Us, Inc. | Housing mounted Z-axis antenna coil |
JP4694394B2 (ja) * | 2006-03-20 | 2011-06-08 | ミツミ電機株式会社 | 車載用複合アンテナ装置 |
GB0706073D0 (en) * | 2007-03-28 | 2007-05-09 | The Technology Partnership Plc | Antenna |
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KR101345698B1 (ko) * | 2012-07-09 | 2013-12-26 | 콘티넨탈 오토모티브 시스템 주식회사 | 카드형 차량 무선 송수신기의 안테나 제조 방법 |
JP2014107692A (ja) * | 2012-11-27 | 2014-06-09 | Tokai Rika Co Ltd | アンテナ装置 |
JP2014107691A (ja) * | 2012-11-27 | 2014-06-09 | Tokai Rika Co Ltd | アンテナ装置 |
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JP6186907B2 (ja) * | 2013-06-06 | 2017-08-30 | スミダコーポレーション株式会社 | アンテナ用コイル装置 |
US9768509B2 (en) * | 2013-08-09 | 2017-09-19 | Sumida Corporation | Antenna coil component, antenna unit, and method of manufacturing the antenna coil component |
RU2546542C1 (ru) * | 2013-10-04 | 2015-04-10 | Общество с ограниченной ответственностью "Алсет Веллен" | Управляемый преселектор, совмещенный с магнитной ферритовой антенной |
JP6197878B2 (ja) * | 2013-11-18 | 2017-09-20 | 株式会社リコー | コイルアンテナの製造方法及びコイルアンテナ実装体の製造方法 |
JP6437227B2 (ja) | 2014-07-18 | 2018-12-12 | 株式会社ヨコオ | 車載用アンテナ装置 |
US9653786B2 (en) * | 2015-06-27 | 2017-05-16 | Intel Corporation | Wearable antenna system |
KR101762040B1 (ko) * | 2015-07-27 | 2017-07-26 | 삼성전기주식회사 | 칩 안테나 및 그 제조 방법 |
JP6280898B2 (ja) * | 2015-08-26 | 2018-02-14 | 株式会社東海理化電機製作所 | アンテナ装置 |
JP6572720B2 (ja) * | 2015-10-13 | 2019-09-11 | スミダコーポレーション株式会社 | アンテナ装置およびアンテナ装置の製造方法 |
JP2017103549A (ja) | 2015-11-30 | 2017-06-08 | スミダコーポレーション株式会社 | アンテナ装置およびアンテナ装置の製造方法 |
JP6700585B2 (ja) * | 2016-02-29 | 2020-05-27 | アイシン精機株式会社 | アンテナモジュール |
JP6645622B2 (ja) * | 2017-05-25 | 2020-02-14 | 株式会社村田製作所 | アンテナ装置 |
JP7120602B2 (ja) * | 2018-04-09 | 2022-08-17 | 東京パーツ工業株式会社 | アンテナコイルおよびアンテナ装置 |
CN111430922B (zh) * | 2020-04-20 | 2022-09-13 | 胜美达电机(香港)有限公司 | 天线设备及其制造方法 |
CN112164856B (zh) * | 2020-08-13 | 2024-05-28 | 中国石油天然气集团有限公司 | 一种方位天线骨架结构及三自由度框式绕线工装 |
CN113690008B (zh) * | 2021-08-26 | 2024-03-08 | 南京金惠凯电子科技有限公司 | 无骨架磁棒装置及其生产工艺 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4418178Y1 (ja) * | 1966-01-18 | 1969-08-06 | ||
JPS558966Y2 (ja) * | 1974-07-19 | 1980-02-27 | ||
JPH0897616A (ja) * | 1994-09-27 | 1996-04-12 | Tokin Corp | フェライトバーアンテナ |
JP2001102832A (ja) * | 1999-09-29 | 2001-04-13 | Sumida Corporation | 電波時計用バーアンテナ |
JP2002033614A (ja) * | 2000-07-14 | 2002-01-31 | Aisin Seiki Co Ltd | ボビンおよびボビンを備えた2軸式ループアンテナ |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50102234U (ja) * | 1974-01-25 | 1975-08-23 | ||
US4101899A (en) * | 1976-12-08 | 1978-07-18 | The United States Of America As Represented By The Secretary Of The Army | Compact low-profile electrically small vhf antenna |
US4275400A (en) | 1977-08-08 | 1981-06-23 | Masashi Miyakoshi | Antenna coil and its support structure mounting |
JPS6312578Y2 (ja) * | 1980-03-14 | 1988-04-11 | ||
JPS6122290Y2 (ja) * | 1980-06-12 | 1986-07-04 | ||
JPS59152703A (ja) * | 1983-02-18 | 1984-08-31 | Matsushita Electric Ind Co Ltd | フエライトアンテナ |
JPH03174801A (ja) * | 1989-09-29 | 1991-07-30 | Toko Inc | ヘリカルフィルタ |
US6052097A (en) * | 1998-03-04 | 2000-04-18 | Tri-Tronics, Inc. | Antenna circuit and method for collar-mounted remote animal training system |
DE20000874U1 (de) | 2000-01-20 | 2001-05-23 | Pemetzrieder Neosid | Auf eine Leiterplatte montierbare Ferritantenne |
JP3855253B2 (ja) * | 2000-06-13 | 2006-12-06 | アイシン精機株式会社 | バーアンテナおよびその製造方法 |
WO2003036760A1 (fr) * | 2001-10-22 | 2003-05-01 | Sumida Corporation | Bobine d'antenne et antenne de transmission |
JP2003283231A (ja) | 2002-03-26 | 2003-10-03 | Aisin Seiki Co Ltd | アンテナおよびその製造方法 |
EP2071667B1 (en) * | 2003-11-27 | 2018-02-28 | Hitachi Metals, Ltd. | Antenna, and radio-controlled timepiece, keyless entry system, and RFID system comprising it |
CN101901963B (zh) * | 2004-03-12 | 2013-06-19 | 日商·胜美达股份有限公司 | 天线线圈单元 |
-
2004
- 2004-10-07 RU RU2006116566/09A patent/RU2321926C2/ru not_active IP Right Cessation
- 2004-10-07 KR KR1020067005748A patent/KR100703147B1/ko not_active IP Right Cessation
- 2004-10-07 EP EP04792415A patent/EP1684380B1/en not_active Not-in-force
- 2004-10-07 US US10/575,941 patent/US7427963B2/en not_active Expired - Fee Related
- 2004-10-07 CN CN2004800300814A patent/CN1868090B/zh not_active Expired - Fee Related
- 2004-10-07 CA CA002542260A patent/CA2542260C/en not_active Expired - Fee Related
- 2004-10-07 WO PCT/JP2004/015187 patent/WO2005038982A1/ja active IP Right Grant
- 2004-10-07 JP JP2005514777A patent/JP4134173B2/ja not_active Expired - Fee Related
- 2004-10-14 TW TW093131085A patent/TWI281288B/zh not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4418178Y1 (ja) * | 1966-01-18 | 1969-08-06 | ||
JPS558966Y2 (ja) * | 1974-07-19 | 1980-02-27 | ||
JPH0897616A (ja) * | 1994-09-27 | 1996-04-12 | Tokin Corp | フェライトバーアンテナ |
JP2001102832A (ja) * | 1999-09-29 | 2001-04-13 | Sumida Corporation | 電波時計用バーアンテナ |
JP2002033614A (ja) * | 2000-07-14 | 2002-01-31 | Aisin Seiki Co Ltd | ボビンおよびボビンを備えた2軸式ループアンテナ |
Non-Patent Citations (1)
Title |
---|
See also references of EP1684380A4 * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009152784A (ja) * | 2007-12-19 | 2009-07-09 | Tokai Rika Co Ltd | 樹脂部材の嵌合構造及び車室内アンテナ装置 |
US8420188B2 (en) | 2007-12-19 | 2013-04-16 | Kabushiki Kaisha Tokai Rika Denki Seisakusho | Resin member fitting structure and passenger compartment antenna device |
JP2015204557A (ja) * | 2014-04-15 | 2015-11-16 | スミダコーポレーション株式会社 | アンテナ装置およびアンテナ装置の製造方法 |
JP2018186475A (ja) * | 2017-04-27 | 2018-11-22 | パナソニックIpマネジメント株式会社 | アンテナ装置、及びこれを備えたドアハンドル、移動体 |
US11063361B2 (en) | 2017-05-26 | 2021-07-13 | Murata Manufacturing Co., Ltd. | Antenna coil |
JP2021190999A (ja) * | 2020-05-26 | 2021-12-13 | プレモ,エスアー. | 広範囲・低周波アンテナ |
JP7280918B2 (ja) | 2020-05-26 | 2023-05-24 | プレモ,エスアー. | 広範囲・低周波アンテナ |
Also Published As
Publication number | Publication date |
---|---|
EP1684380A1 (en) | 2006-07-26 |
KR100703147B1 (ko) | 2007-04-09 |
RU2006116566A (ru) | 2008-01-20 |
JP4134173B2 (ja) | 2008-08-13 |
KR20060069498A (ko) | 2006-06-21 |
RU2321926C2 (ru) | 2008-04-10 |
US7427963B2 (en) | 2008-09-23 |
CN1868090B (zh) | 2012-07-25 |
JPWO2005038982A1 (ja) | 2007-02-08 |
CA2542260C (en) | 2009-12-22 |
TW200518388A (en) | 2005-06-01 |
US20070075913A1 (en) | 2007-04-05 |
TWI281288B (en) | 2007-05-11 |
CA2542260A1 (en) | 2005-04-28 |
EP1684380B1 (en) | 2012-05-23 |
CN1868090A (zh) | 2006-11-22 |
EP1684380A4 (en) | 2006-11-29 |
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