JP2012204961A - Antenna assembly - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an antenna assembly for which a capacitor can be stably mounted when assembling the capacitor.SOLUTION: In an antenna assembly 1, a first conductive member 6, which is provided in a bobbin 2 and whose one end is integrally connected to a first connector connection terminal 612 and other end is connected to one end of a coil 4, is divided into a first connector connection terminal side part 61 and a coil side part 62 away from each other at a prescribed interval, the first connector connection terminal side end part 61 and the coil side end part 62 are provided with capacitor level difference parts 613 and 622 bent step-wise so as to face each other at positions separated for a distance equivalent to the length of a capacitor 5, and respective terminals of the capacitor 5 are connected respectively to the first connector connection terminal side end part 61 and the coil side end part 62 in the state of being mounted on the capacitor level difference parts 613 and 622.

Description

  The present invention relates to an antenna assembly including a coil and a capacitor.

  Recently, a smart key system that locks / unlocks doors and trunks using radio has become mainstream. As an antenna assembly, it describes in Unexamined-Japanese-Patent No. 2007-288345 (patent document 1), for example. In the antenna assembly, a coil and a capacitor constitute a resonance circuit. The capacitor of the antenna assembly is placed on a terminal electrically connected to the coil and a terminal electrically connected to the external terminal, and is connected and fixed to each terminal.

JP 2007-288345 A

  However, as shown in FIGS. 5 and 7 of Patent Document 1, the capacitor is placed on a flat terminal and is fixed to each terminal with an adhesive or the like in order to stably connect the capacitor. That is, the capacitor is not stable on the terminal when the capacitor is mounted. This requires the operator to use considerable nerves in the assembly work. In addition, as long as the capacitor cannot be stably mounted during assembly, simple bonding such as solder is not sufficient, and it has been necessary to securely fix it separately using an adhesive or the like.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide an antenna assembly capable of stably placing a capacitor when the capacitor is assembled.

  The invention of the antenna assembly according to claim 1 that solves the above-described problem includes a bobbin, a core supported by the bobbin along a longitudinal direction, a coil that winds the core, a capacitor, and each end of the core. An antenna assembly integrally composed of first and second connector connection terminals that protrude in the longitudinal direction from the front end of the bobbin and each other end is connected to each end of the series circuit of the coil and the capacitor. And a case formed with a bottomed hole having an opening on the front end side and a closed bottom surface on the rear end side, and the antenna assembly so that the first and second connector connecting terminals are located on the opening side. Is an antenna assembly which is inserted into the bottomed hole and fixed, and is provided on the bobbin. One end of the antenna assembly is integrally connected to the first connector connection terminal, and the other end is connected to one end of the coil. The One conductive member is divided into the first connector connection terminal side portion and the coil side portion separated by a predetermined distance, the first connector connection terminal side end portion of the divided portion of the first conductive member and the coil side The end portions are bent stepwise or concavely at respective positions corresponding to the length in the longitudinal direction of the capacitor to form a capacitor step portion, and the capacitor is placed on the capacitor step portion. In the state, each terminal is connected to the first connector connection terminal side end and the coil side end, respectively, one end is integrally connected to the second connector connection terminal, and the other end is connected to the other end of the coil. The second conductive member is provided on the bobbin.

  According to a second aspect of the present invention, in the first aspect, the capacitor step of the first conductive member is provided on a front end side portion of the bobbin that covers the upper surfaces of the first conductive member, the capacitor, and the second conductive member. A space portion that exposes the portion to the outside is formed, and the bobbin has a circumferential positioning portion that contacts the capacitor and positions the capacitor in a circumferential direction perpendicular to the longitudinal direction and the vertical direction. It is characterized by.

  According to a third aspect of the present invention, in the second aspect, the facing direction of the capacitor step portion is the longitudinal direction, and the positioning portion is formed integrally with a side wall that forms a space portion of the bobbin. It is characterized by.

  According to a fourth aspect of the present invention, in the first aspect, the capacitor step of the first conductive member is disposed on a front end side portion of the bobbin that covers the upper surfaces of the first conductive member, the capacitor, and the second conductive member. A space portion that exposes the portion to the outside is formed, and a circumferential positioning portion that contacts the capacitor and positions the capacitor in a circumferential direction perpendicular to the longitudinal direction and the vertical direction is formed in the capacitor stepped portion. It is characterized by being.

  According to a fifth aspect of the present invention, in any one of the second to fourth aspects, the first connector connection terminal and the first connector connection terminal side portion of the first conductive member are integrated, and the second connector connection. The terminal and the second conductive member are integral, and the bobbin has the first conductive member and the second conductive member in a state where the first and second connector connecting terminals protrude in the longitudinal direction from the front end of the bobbin. An antenna assembly characterized by being enclosed and insert-molded.

  The invention according to claim 6 is the invention according to any one of claims 2 to 4, wherein the first connector connection terminal and the first connector connection terminal side portion of the first conductive member are integrated, and the second connector The connection terminal and the second conductive member are integral, and the bobbin is connected to the first connector connection terminal side part and the coil side part of the first conductive member by a first connection part, and the second In a state where the conductive member and the first connecting portion are connected by the second connecting portion, the first conductive member and the second connector connecting terminal protrude in the longitudinal direction from the front end of the bobbin. A through hole formed in the bobbin includes the second conductive member and is insert-molded, and the space portion includes the capacitor step portion, the first connection portion, and the second connection portion of the first conductive member. A hole, said first Binding portion and the second connecting portion are characterized by being cut respectively after the insert molding.

  According to the first aspect of the present invention, the capacitor step can be regulated by the capacitor step portion, and the capacitor can be stably placed when the capacitor is assembled. Thereby, for example, it is possible to connect each terminal with solder without fixing the capacitor with an adhesive or the like. Further, when solder is used, the solder is easily stabilized by the capacitor stepped portion.

  According to the invention of claim 2, the capacitor is placed on the capacitor step portion from the space portion of the bobbin and abuts on the positioning portion. As a result, the capacitor can be placed more stably.

  According to the invention of claim 3, as the positioning portion, the side wall constituting the space portion of the bobbin itself or an integral part of the side wall can be used, and the configuration of claim 2 can be realized with a simpler manufacturing process. it can.

  According to the invention of claim 4, the capacitor can be placed more stably as in the invention of claim 2. In addition, it is not necessary to form a positioning part on the bobbin, and the manufacturing becomes easy.

  According to the invention of claim 5, the antenna assembly can be easily manufactured by insert molding.

  According to invention of Claim 6, the 1st electroconductive member and the 2nd electroconductive member which were united by the 1st connection part and the 2nd connection part are insert-molded with a bobbin. Since the first and second conductive members are integral, the positions of the terminals are in a positioned state. Therefore, only by positioning the first and second conductive members and the bobbin and insert molding them, the terminals and the positional relationship between the terminals and the bobbin become accurate. That is, the antenna assembly can be manufactured easily and accurately.

1 is a plan view showing an antenna assembly 1. FIG. It is a top view which shows the front-end part of the antenna assembly 1 before the conductor D cutting | disconnection. It is the sectional view on the AA line in FIG. It is a model side view showing a capacitor level difference part of a first embodiment. 1 is a side view showing an antenna assembly 1. FIG. It is a fragmentary sectional view which shows the antenna assembly 1 inserted in the case. It is a schematic plan view which shows the capacitor | condenser step part of 2nd embodiment. It is a schematic plan view which shows the capacitor | condenser level | step difference part of 3rd embodiment. It is a schematic plan view which shows the capacitor | condenser level | step difference part of the deformation | transformation aspect of 3rd embodiment. It is a schematic plan view which shows the capacitor | condenser level | step difference part of the deformation | transformation aspect of 3rd embodiment.

Next, the present invention will be described in more detail with reference to embodiments.
<First embodiment>
A first embodiment will be described with reference to FIGS. Note that FIG. 2 shows a state in which the connecting portions 614, 624, and 74 are connected (before cutting), but the other parts are the same as those in FIG. FIG. 4 is a schematic diagram for explaining the shape of the capacitor step portions 613 and 622, and the dotted line represents the positioning portion 22. FIG. 6 shows only the case in cross section.

  As shown in FIG. 1, the antenna assembly 1 of the first embodiment includes a bobbin 2, a core 3, a coil 4, a capacitor 5, a first conductive member 6, and a second conductive member 7. ing.

  The bobbin 2 is made of a resin and has a substantially rectangular parallelepiped shape extending in one direction. Here, let the longitudinal direction of the bobbin 2 be the front-back direction. Further, the front-rear direction and the direction orthogonal to the paper surface of FIG. 1 are defined as the vertical direction (the front side in FIG. 1 is the upper side), and the direction orthogonal to the front-rear direction and the vertical direction is defined as the left-right direction. A through hole 21 (space portion) that penetrates the bobbin 2 in the vertical direction is formed at the front end of the bobbin 2. Details of the bobbin 2 will be described later.

  The core 3 is a rod-like magnetic body and is supported by the bobbin 2 along the longitudinal direction. The coil 4 is wound around the core 3 at the approximate center in the longitudinal direction of the bobbin 2, which is behind the through hole 21. The capacitor 5 is disposed inside the through hole 21 and is electrically connected in series with the coil 4. The coil 4 forms a resonance circuit.

  The first conductive member 6 is a conductor, and includes a connector side portion 61 and a coil side portion 62 that are spaced apart from each other. That is, the first conductive member 6 is divided into a connector side part 61 that is a part on the first connector connection terminal 612 side and a coil side part 62 that is a part on the coil 4 side, with a predetermined separation.

  The connector side portion 61 (corresponding to “first connector connection terminal side portion”) has a main body portion 611, a first connector connection terminal 612, a capacitor step portion 613, and a connection portion 614.

  The main body 611 has a flat plate shape, and is arranged to extend in the front-rear direction on the right side of the front end portion in the bobbin 2. The main body 611 has a front end disposed at the front end position of the bobbin 2 and a rear end disposed near the right side surface in the through hole 21.

  The first connector connection terminal 612 is integrally connected to the front end of the main body 611 and extends forward from the front end of the main body 611. The first connector connection terminal 612 protrudes forward from the front end surface of the bobbin 2. The first connector connection terminal 612 is connected to a connector terminal of an external connector (not shown).

  The capacitor step 613 is integrally connected to the rear end of the main body 611 and extends rearward from the rear end of the main body 611. The capacitor step 613 is located in the through hole 21 and exposed to the outside. As shown in FIGS. 3 and 4, the capacitor step portion 613 is bent downward stepwise with respect to the main body portion 611. In other words, the capacitor step 613 has a substantially L shape (side view) recessed downward with respect to the main body 611. On the capacitor step portion 613, one terminal of the capacitor 5 is mounted and connected and fixed by solder.

  The connecting portion 614 (corresponding to a “first connecting portion”) has a flat plate shape and is integrally connected to the left end of the main body portion 611 and extends backward. The distal end of the connecting portion 614 is located in the through hole 21.

  The coil side portion 62 (corresponding to a “coil side portion”) includes a main body portion 621, a capacitor step portion 622, a first connection portion 623, and a connection portion 624.

  The main body portion 621 has a flat plate shape, and is arranged to extend in the front-rear direction on the right side of the front end portion in the bobbin 2 behind the main body portion 611. The main body 611 has a front end disposed behind the capacitor step 613 in the vicinity of the right side surface in the through hole 21, and a rear end disposed in the bobbin 2.

  The capacitor step 622 is integrally connected to the front end of the main body 621 and extends forward from the front end of the main body 621. The capacitor step 622 is located in the through hole 21 and exposed to the outside. As shown in FIGS. 3 and 4, the capacitor step portion 622 is bent downward in a stepped manner with respect to the main body portion 621. In other words, the capacitor step portion 622 has a substantially L shape (side view) recessed downward with respect to the main body portion 621.

  The front end of the capacitor step 622 is disposed opposite to and separated from the rear end of the capacitor step 613. On the capacitor step 622, the other terminal of the capacitor 5 is placed and connected and fixed by solder. The step forming surfaces 613a and 622a (L-shaped side surfaces) extending in the vertical direction constituting the capacitor step portions 613 and 622 are the length of the capacitor 5 (the length from the end where one terminal is located to the end where the other terminal is located). Are separated from each other by a distance corresponding to (a). The facing direction of the step forming surfaces 613a and 622a is the front-rear direction. The separation distance between the step forming surfaces 613 a and 622 a is slightly larger than the length of the capacitor 5.

  The first connection portion 623 is integrally connected to the rear end of the main body portion 621 and extends upward from the rear end of the main body portion 621. The first connection portion 623 has an upper end protruding upward from the upper surface of the bobbin 2. One end of the coil 4 is wound around the upper end of the first connection portion 623.

  The connecting portion 624 (corresponding to the “first connecting portion”) has a flat plate shape and is integrally connected to the left end of the main body portion 621 and extends forward. The distal end of the connecting portion 624 is disposed opposite to and spaced from the distal end of the connecting portion 614 in the through hole 21.

  Thus, the first conductive member 6 electrically connects the first connector connection terminal 612 and one end of the coil 4 via the capacitor 5.

  The second conductive member 7 is a conductor and includes a main body portion 71, a second connector connection terminal 72, a second connection portion 73, and a connecting portion 74.

  The main body 71 has a flat plate shape and is arranged in parallel with the main body 611 so as to extend in the front-rear direction on the left side of the front end of the bobbin 2. The main body 71 has a front end disposed at the front end position of the bobbin 2 and a rear end disposed within the bobbin 2 behind the through hole 21.

  The second connector connection terminal 72 is integrally connected to the front end of the main body 71 and extends forward from the front end of the main body 71. The second connector connection terminal 72 protrudes forward from the front end surface of the bobbin 2 in parallel with the first connector connection terminal 612. The second connector connection terminal 72 is connected to a connector terminal of an external connector (not shown).

  The second connection portion 73 is integrally connected to the rear end of the main body portion 71 and extends upward from the rear end of the main body portion 71. The second connection portion 73 has an upper end protruding upward from the upper surface of the bobbin 2. The other end portion of the coil 4 is wound around the upper end portion of the second connection portion 73.

  The connecting portion 74 (corresponding to the “second connecting portion”) has a flat plate shape and is integrally connected to the right end of the main body portion 71 and extends downward. The distal end of the connecting portion 74 is disposed in the through hole 21 so as to be separated from the distal end of the connecting portion 614 and the vicinity of the distal end of the connecting portion 624.

  The second conductive member 7 electrically connects the second connector connection terminal 72 and the other end of the coil 4. The first conductive member 6 and the second conductive component 7 constitute a series resonance circuit of the coil 4 and the capacitor 5.

  Here, as shown in FIGS. 1, 4, and 5, the bobbin 2 is provided with a positioning portion 22 on the right side surface of the through hole 21. The positioning portion 22 has a flat plate shape and is formed integrally with the right side surface of the through hole 21. The positioning portion 22 extends in the vertical direction along the right side surface in the through hole 21, protrudes slightly above the right side surface of the through hole 21, and is formed at substantially the same height as the upper surface of the capacitor 5. The positioning part 22 is in contact with the side surface of the capacitor 5. In addition, although the wall surface upper part of the through-hole 21 is chamfered, the positioning part 22 is not chamfered and becomes flat plate shape.

  According to the first embodiment, the position of the capacitor 5 is regulated by the capacitor step portions 613 and 622. Specifically, the capacitor 5 is restricted from moving in the front-rear direction and moving downward by the capacitor step portions 613 and 622. That is, the capacitor 5 is positioned in the vertical direction and the front-back direction. Thereby, when the capacitor 5 is assembled to the first conductive member 6, an operator (including a work robot) can stably place the capacitor 5.

  Furthermore, according to the first embodiment, the positioning portion 22 abuts on the side surface of the capacitor 5 to restrict the rightward movement of the capacitor 5. That is, the positioning unit 22 positions the capacitor 5 in the left-right direction (the direction perpendicular to the up-down direction and the front-rear direction). Thereby, the operator can place the capacitor 5 more stably. Moreover, since the positioning part 22 utilizes the side surface of the through-hole 21, it can be formed with formation of the through-hole 21, and manufacture becomes easy.

  Since 1st embodiment is the structure which can mount the capacitor | condenser 5 stably, the connection of the capacitor | condenser 5 and the 1st electroconductive member 6 can be performed with a solder. The connection can be realized by, for example, reflow soldering or laser soldering, and fixing with an adhesive or the like is not necessary.

  Here, a manufacturing method of the antenna assembly 2 will be described. First, as shown in FIG. 2, the conductor D in which the first conductive member 6 and the second conductive member 7 are integrated is manufactured. Then, the bobbin 2 is manufactured integrally with the conductor D and the core 3 by insert molding including the conductor D and the core 3. A through hole 21 is formed in the bobbin 2 to expose the capacitor step portions 613 and 622 and the connecting portions 614, 624, and 74 in the conductor D. Then, the conductor D (shaded portion in FIG. 2) is cut from above so that the connecting portions 614, 624, and 74 are isolated from each other. Thereby, the conductor D is divided | segmented into the connector side site | part 61, the coil side site | part 62, and the 2nd electrically-conductive member 7 in the state in which each terminal was positioned.

  Subsequently, the capacitor 5 is placed on the capacitor step portions 613 and 622. At this time, the side surface of the capacitor 5 is brought into contact with the positioning portion 22. Then, one terminal of the capacitor 5 and the capacitor step 613 are connected and fixed, and the other terminal of the capacitor 5 and the capacitor step 622 are connected and fixed by reflow soldering or laser soldering. Thereafter, the coil 4 is wound around the core 3 and the respective end portions are wound around the first and second connection portions 623 and 73, respectively.

  That is, in the antenna assembly 1, the bobbin 2 is connected to the connector side portion 61 and the coil side portion 62 by the connecting portions 614 and 624, and the second conductive member 7 and the connecting portions 614 and 624 are connected to the connecting portion 74. In the connected state, the first and second connector connecting terminals 612 and 72 are insert-molded so as to include the conductor D so as to protrude forward from the front end of the bobbin 2, and the connecting portions 614 and 622 and the connecting portion 74 are inserted. Each is cut and manufactured after molding. According to this manufacturing method, the antenna assembly 1 can be manufactured in a state where the positioning of each terminal is reliably performed.

  As shown in FIG. 6, the antenna assembly 2 is inserted into the case C to form an antenna device, and is installed in a vehicle or the like. Further, the positioning portion 22 is not limited to the side surface of the through hole 21 and may be formed integrally with other portions of the bobbin 2. Further, the positioning portion 22 may be formed so as to protrude inward (left side in the present embodiment) from the side surface of the through hole 21. Further, the positioning portion 22 may be the same height as the side surface of the through hole 21. Further, the exposure of the capacitor stepped portions 613, 622 and the like to the outside is not limited to the through hole 21, but may be a through-open portion (space portion) opened only at the upper portion.

<Second embodiment>
A second embodiment will be described with reference to FIG. The antenna assembly of the second embodiment is different from the first embodiment in the main body portions 611 and 621, the capacitor step portion, and the positioning portion, and the other configurations are the same.

  Similar to the first embodiment, the capacitor step portions 8 and 9 of the second embodiment include step forming surfaces 81 and 91 that face each other at a distance corresponding to the length of the capacitor 5. That is, the capacitor step portions 8 and 9 are bent downward stepwise so as to face each other at a position separated by a distance corresponding to the length of the capacitor 5.

  Here, in the second embodiment, the width of the main body portions 611 and 621 in the left-right direction is larger than the width of the capacitor 5 in the left-right direction. The capacitor step portions 8 and 9 are integrally provided in the center of the end portions of the main body portions 611 and 621. That is, the step forming surfaces 81 and 91 of the capacitor step portions 8 and 9 extend by a distance corresponding to the left and right widths of the capacitor 5. In other words, the capacitor step portions 8 and 9 protrude from the center of the end portions of the main body portions 611 and 621 so as to have a width corresponding to the width of the capacitor 5. The end portions of the main body portions 611 and 621 are substantially U-shaped (in plan view).

  The capacitor step portion 8 is formed in a concave shape surrounded by a step forming surface 81 and step side surfaces 82 and 83 (corresponding to “positioning portions”) extending rearward from the end portion of the step forming surface 81. Similarly, the capacitor step portion 9 is formed in a concave shape surrounded by a step forming surface 91 and step side surfaces 92 and 93 (corresponding to “positioning portions”) extending forward from the end of the step forming surface 91. .

  Thereby, the effect similar to 1st embodiment is acquired. Furthermore, since the step side surfaces 82, 83, 92, 93 regulate the movement of the capacitor 5 in the left-right direction (the direction perpendicular to the up-down direction and the facing direction), the capacitor 5 can be placed more stably. Further, since the bobbin 2 is not provided with a positioning portion and only the first conductive member 6 is processed, the manufacturing becomes easy.

<Third embodiment>
A third embodiment will be described with reference to FIGS. The antenna assembly of the third embodiment is different from the first embodiment in the main body portions 611 and 621, the capacitor step portion, and the positioning portion, and the other configurations are the same.

  In 3rd embodiment, the rear-end part of the main-body part 611 and the front-end part of the main-body part 621 are arrange | positioned so that it may mutually be spaced apart and parallel. The capacitor step portion 8A is formed integrally with the right end of the rear end portion of the main body portion 611. The capacitor step portion 9 </ b> A is formed integrally with the left end of the front end portion of the main body portion 621. Similarly to the second embodiment, the capacitor step portion 8A (9A) is formed in a concave shape surrounded by the step forming surface 81A (91A) and the step side surfaces 82A and 83A (92A, 93A).

  The facing direction of the step forming surfaces 81A, 91A is the left-right direction, and the distance between the step forming surfaces 81A, 91A corresponds to the length of the capacitor 5. The separation distance between the step side surfaces 82A and 83A (92A and 93A) corresponds to the width (length in the front-rear direction) of the capacitor 5.

  Thereby, the effect similar to 1st embodiment is exhibited. Furthermore, the step side surfaces 82A and 83A (92A and 93A) function as positioning portions, and the same effects as those of the second embodiment are also exhibited.

  In the third embodiment, the step side surface may be one surface 82A (93A) on each capacitor step portion 8A (9A) as shown in FIG. Alternatively, the distance between the step side surfaces 82 </ b> A and 83 </ b> A (92 </ b> A and 93 </ b> A) may be larger than the width of the capacitor 5. Also by these, at least the movement of the capacitor 5 in the left-right direction is restricted by the step forming surfaces 81A and 91A, and the capacitor 5 can be stably placed. In FIG. 9, since the distance in the front-rear direction between the step side surface 82A of the capacitor step portion 8A and the step side surface 93A of the capacitor step portion 9A corresponds to the width of the capacitor 5, the capacitor step portion 8A can be placed more stably.

  Further, as shown in FIG. 10, capacitor step portions 8 </ b> B and 9 </ b> B may be provided over the entire left and right widths of the main body portions 611 and 621. In this case, the step forming surfaces are surfaces 81B and 82B (91B and 92B) facing the front and rear direction of the capacitor step portion 8B (9B). Here, the separation distance between the step forming surfaces 81B and 82B (91B and 92B) corresponds to the width (length in the front-rear direction) of the capacitor. This also restricts the movement of the capacitor 5 in the front-rear direction by the step forming surfaces 81B and 82B (91B and 92B), so that the capacitor 5 can be placed stably.

1: antenna assembly,
2: bobbin, 21: through hole, 22: positioning part,
3: Core, 4: Coil, 5: Capacitor,
6: first conductive member,
61: Connector side part (first connector connection terminal side part),
611: body portion, 612: first connector connection terminal, 613: capacitor step portion, 613a: step forming surface, 614: connecting portion (first connecting portion),
62: Coil side part (coil side part),
621: body portion, 622: capacitor step portion, 622a: step forming surface,
623: 1st connection part, 624: Connection part (1st connection part),
7: second conductive member,
71: Main body part 72: Second connector connection terminal 73: Second connection part
74: Connecting part (second connecting part),
8, 8A, 8B, 9, 9A, 9B: capacitor step portion,
81A, 81B, 82B, 91A, 91B, 92B: step forming surface,
82A, 83A, 92A, 93A: step side surface (positioning part),
C: Case, D: Conductor

Claims (6)

A bobbin, a core supported by the bobbin along the longitudinal direction, a coil that winds the core, a capacitor, and one end projecting from the front end of the bobbin in the longitudinal direction; An antenna assembly integrally composed of first and second connector connecting terminals respectively connected to each end of a series circuit of capacitors,
A first conductive member provided on the bobbin, having one end integrally connected to the first connector connecting terminal and the other end connected to one end of the coil includes the first connector connecting terminal side portion and the coil side portion. And divided into predetermined intervals,
The first connector connecting terminal side end and the coil side end of the divided portion of the first conductive member are stepped so as to face each other at a distance corresponding to the length of the capacitor. Bent capacitor step is provided,
The capacitor is connected to the first connector connection terminal side end and the coil side end in a state where the capacitor is placed on the capacitor stepped portion,
An antenna assembly, wherein a second conductive member having one end integrally connected to the second connector connecting terminal and the other end connected to the other end of the coil is provided on the bobbin. In claim 1,
The front end side portion of the bobbin that covers the top surfaces of the first conductive member, the capacitor, and the second conductive member is formed with a space portion that exposes the capacitor step portion of the first conductive member to the outside.
An antenna assembly according to claim 1, wherein the bobbin is formed with a positioning portion that contacts the capacitor and positions the capacitor in a direction perpendicular to the facing direction and the vertical direction of the capacitor stepped portion. In claim 2,
The facing direction of the capacitor step portion is the longitudinal direction,
The antenna assembly according to claim 1, wherein the positioning portion is formed integrally with a side wall forming a space portion of the bobbin. In claim 1,
The front end side portion of the bobbin that covers the top surfaces of the first conductive member, the capacitor, and the second conductive member is formed with a space portion that exposes the capacitor step portion of the first conductive member to the outside.
The antenna assembly according to claim 1, wherein the capacitor step portion is formed with a positioning portion that contacts the capacitor and positions the capacitor in a direction perpendicular to the facing direction and the vertical direction of the capacitor step portion. In any one of Claims 2-4,
The first connector connection terminal and the first connector connection terminal side portion of the first conductive member are integral, and the second connector connection terminal and the second conductive member are integral,
The bobbin is insert-molded including the first conductive member and the second conductive member in a state where the first and second connector connection terminals protrude in the longitudinal direction from the front end of the bobbin. Antenna assembly. In any one of Claims 2-4,
The first connector connection terminal and the first connector connection terminal side portion of the first conductive member are integral, and the second connector connection terminal and the second conductive member are integral,
In the bobbin, the first connector connection terminal side part and the coil side part of the first conductive member are connected by a first connection part, and the second conductive member and the first connection part are second connection. In a state where the first and second connector connection terminals are connected at the part, the first conductive member and the second conductive member are included so as to protrude in the longitudinal direction from the front end of the bobbin, and insert molding is performed.
The space portion is a through-hole formed in the bobbin that includes the capacitor step portion, the first connection portion, and the second connection portion of the first conductive member,
The antenna assembly according to claim 1, wherein the first connecting portion and the second connecting portion are cut after the insert molding.

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