JP2020009638A - Terminal unit for coaxial line and manufacturing method thereof - Google Patents

Abstract

To provide a terminal unit for a coaxial line which incorporates a lead-type electronic element and can maintain good reliability of electrical connection.SOLUTION: A terminal unit 1 includes an inner conductor terminal 10 connected to a mating terminal, a lead-type electronic element 20 connecting the inner conductor terminal 10 and an inner conductor 71 of a coaxial cable 70, a cover 30 that holds the inner conductor terminal 10, the electronic element 20, and a contact point between the inner conductor terminal 10 and a lead wire 21 extending from electronic element 20 so as to regulate the relative movement between the inner conductor terminal 10, the electronic element 20, and the contact point, a housing 40 that houses the inner conductor terminal 10 and is separate from the cover 30, and an outer conductor terminal 50 having a housing holding portion 51 for holding the housing 40, an outer conductor crimping portion 52 connected to an outer conductor 73 of the coaxial cable 70, and a cover holding portion 53 for holding the cover 30.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a coaxial cable terminal unit and a method for manufacturing a coaxial cable terminal unit.

  Conventionally, an inner conductor terminal connected to a counterpart terminal and conductively connected to an inner conductor of a coaxial line, a housing made of a dielectric for housing and holding the inner conductor terminal, 2. Description of the Related Art A terminal unit for a coaxial line including an outer conductor terminal electrically connected to an outer conductor is widely known.

  When such a coaxial line terminal unit is used, for example, as a terminal of an antenna line (coaxial line) for an in-vehicle radio, a technique of incorporating a lead-type electronic element in the terminal unit is known (for example, Patent Document 1). As such an electronic element, for example, a capacitor for adjusting capacitance and improving noise resistance is used.

JP 2005-302366A

  By the way, when examining the manufacturing method of the terminal unit described in the above document, first, a step of connecting a lead wire extending from the electronic element to the inner conductor terminal is performed, and then, the inner conductor terminal is inserted into a terminal accommodating chamber provided in the housing. An insertion step is performed. Due to such a manufacturing process, the inner conductor terminal (and the lead wire and the electronic element integrated with the inner conductor terminal) are prevented from moving in the path along which the inner conductor terminal moves when inserted into the housing. This makes it difficult to dispose the necessary members. In other words, even if the contact point between the inner conductor terminal and the lead wire is to be held from the outside while the inner conductor terminal is moving, such holding is difficult because the contact point is in the path. . This is the same even after the insertion of the inner conductor terminal into the housing is completed, unless a measure such as separately assembling a member holding the contact point is performed. In fact, in the terminal unit of the above document, the contact point between the inner conductor terminal and the lead wire is not particularly held, and the contact point is easily displaced.

  Therefore, when the completed terminal unit is actually used, the contact point between the inner conductor terminal and the lead wire may be displaced so as to swing due to external vibration or the like. In such a case, if an excessive displacement occurs at the contact point, the reliability of the electrical connection between the inner conductor terminal and the lead wire may be reduced.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a terminal unit for a coaxial line having a built-in lead-type electronic element capable of maintaining good electrical connection reliability. , And a method of manufacturing such a terminal unit.

In order to achieve the above-described object, a “terminal unit for coaxial cable” according to the present invention is characterized by the following (1) to (3).
(1)
An inner conductor terminal connected to the mating terminal,
A lead-type electronic element provided to connect the inner conductor terminal and the inner conductor of the coaxial line,
The inner conductor terminal, the electronic element, and the electronic element, so as to regulate the relative movement of a lead wire extending from the electronic element and a contact point between the inner conductor terminal, A cover for holding contact points,
A housing that houses the inner conductor terminal and is separate from the cover;
A housing holding portion for holding the housing, an outer conductor crimping portion connected to the outer conductor of the coaxial wire, and an outer conductor terminal having a cover holding portion for holding the cover,
Terminal unit for coaxial cable.
(2)
In the terminal unit according to the above (1),
The inner conductor terminal,
A connection terminal connected to the counterpart terminal,
And a press-contact body that is fixed while being sandwiched while pressing the lead wire and that constitutes the contact point.
Terminal unit for coaxial cable.
(3)
In the terminal unit according to the above (2),
The cover,
Holding the press-contact body so as to regulate that the press-contact body is deformed in a direction in which the pressing force on the lead wire is reduced,
Terminal unit for coaxial cable.

  According to the terminal unit for a coaxial cable having the configuration of the above (1), as a member separate from the housing accommodating the inner conductor terminal, the contact point between the inner conductor terminal and the lead wire is held, and the inner conductor terminal is connected to the housing. A cover is provided for restricting relative movement between the electronic element and the contact point. For this reason, the contact point is appropriately held as compared with the conventional terminal unit, and displacement of the contact point can be suppressed. Furthermore, since the housing and the cover are separate bodies, the degree of freedom in designing each of the housing and the cover is high, and the structure for holding the above-mentioned contact points can be easily provided on the cover. Therefore, with the terminal unit having this configuration, the reliability of the electrical connection between the inner conductor terminal and the lead wire can be favorably maintained.

  According to the terminal unit for a coaxial cable having the configuration of the above (2), the lead wire is press-fitted into a press-contact body (for example, a press-contact blade) provided on the inner conductor terminal, so that the inner conductor terminal and the lead wire are connected. Can connect. By this press-fitting, the inner conductor terminal and the lead wire can be easily and surely connected as compared with other connection methods such as welding and soldering.

  According to the terminal unit for a coaxial cable having the configuration of the above (3), the cover restricts deformation of the press contact body in a direction in which the pressing force on the lead wire is reduced (for example, opening of the press contact blade). Therefore, compared to a case where such a restriction is not made, it is possible to suppress the pressing force applied to the lead wire by the press-contact body from decreasing with time, and it is possible to suppress the electrical connection between the inner conductor terminal and the lead wire for a long period of time. Good reliability can be maintained.

In order to achieve the above-mentioned object, a “method of manufacturing a terminal unit for a coaxial cable” according to the present invention is characterized by the following (4) and (5).
(4)
An inner conductor terminal connected to the counterpart terminal, a lead wire type electronic element, a cover for housing the electronic element, a housing for housing the inner conductor terminal and separate from the cover, the housing and the housing An outer conductor terminal to which a cover is attached and connected to an outer conductor of the coaxial line, and a method of manufacturing a terminal unit for a coaxial line, comprising:
Attaching the housing to a housing holding portion of the outer conductor terminal;
A step of attaching the cover to a cover holding portion of the outer conductor terminal,
A step of housing the connection terminal of the inner conductor terminal in the housing,
Connecting one of the lead wires extending from the electronic element to the inner conductor of the coaxial line,
A step of forming a contact point between the inner conductor terminal and the other lead wire by press-fitting and connecting the other lead wire of the electronic element to the press contact body of the inner conductor terminal;
A step of housing the electronic element in the cover;
A step of crimping and connecting an outer conductor crimping portion of the outer conductor terminal to the outer conductor of the coaxial line,
The cover,
The inner conductor terminal, the electronic element and the contact point are configured to be held so as to regulate relative movement between the inner conductor terminal, the electronic element, and the contact point,
A method of manufacturing a terminal unit for a coaxial cable.
(5)
In the production method according to the above (4),
The terminal unit,
The housing, the inner conductor terminal, the electronic element, the cover, and the coaxial line are configured to be arranged along the axial direction of the outer conductor terminal,
In the step of press-fitting the other lead wire into the press-contact body to form the contact point,
Press-fitting the other lead wire into the press-contact body from a direction different from the axial direction,
A method of manufacturing a terminal unit for a coaxial cable.

  According to the method of manufacturing the terminal unit for a coaxial cable having the configuration of the above (4), the lead wire extending from the electronic element is press-fitted into the press-contact body of the inner conductor terminal and fixed, so that the inner conductor terminal and the lead wire can be connected to each other. Can be connected. By this press-fitting, the inner conductor terminal and the lead wire can be easily and surely connected as compared with other connection methods such as welding and soldering. Furthermore, by using a cover configured to hold the inner conductor terminal, the electronic element, and the contact point while regulating the relative movement between the inner conductor terminal, the electronic element, and the contact point, the contact point can be reduced as compared with the conventional terminal unit. The position is appropriately held, and the displacement of the contact point can be suppressed. Furthermore, since the housing and the cover are separate bodies, the degree of freedom in designing each of the housing and the cover is high, and a structure for holding the contact point can be easily provided on the cover. Therefore, according to the manufacturing method of this configuration, it is possible to manufacture a terminal unit that can maintain good reliability of electrical connection between the inner conductor terminal and the lead wire. Note that each step in the manufacturing method of the present configuration may be executed in a different order as necessary, or a plurality of steps may be executed collectively.

  By the way, when a large number of members (housing, inner conductor terminal, electronic element, cover, coaxial line, etc.) are arranged along the axial direction of the terminal unit, the lead wires are pressed into the press contact body along this axial direction. Even so, it may be difficult to secure a space for performing such press-fitting work. In this regard, according to the method of manufacturing a terminal unit for a coaxial cable having the configuration of the above (5), the lead wire is pressed into the press-contact body of the outer conductor terminal from a direction different from the axial direction. Space is easy to secure. Therefore, workability and manufacturing efficiency for manufacturing the terminal unit can be improved.

  ADVANTAGE OF THE INVENTION According to this invention, the terminal unit for coaxial lines which incorporates the lead-type electronic element which can maintain the reliability of favorable electrical connection, and the manufacturing method of such a terminal unit can be provided. .

  The present invention has been briefly described above. Further, details of the present invention will be further clarified by reading through the modes for carrying out the invention described below (hereinafter, referred to as “embodiments”) with reference to the accompanying drawings. .

FIG. 1 is a perspective view showing a state where the end of the coaxial cable is connected to the terminal unit for coaxial cable according to the first embodiment of the present invention. FIG. 2 is a longitudinal sectional view along the axial direction of the terminal unit shown in FIG. FIG. 3 is an exploded perspective view of the terminal unit shown in FIG. FIG. 4 is a first diagram for explaining an assembling step of the terminal unit shown in FIG. FIG. 5 is a second diagram for explaining the assembling step of the terminal unit shown in FIG. FIG. 6 is a third diagram illustrating the step of assembling the terminal unit illustrated in FIG. 1. FIG. 7 is a sectional view taken along line AA of FIG. 8A is a perspective view showing a state in which the terminal unit shown in FIG. 1 is being inserted into the terminal insertion hole of the connector housing. FIG. 8B is a perspective view showing the terminal unit shown in FIG. It is a perspective view showing the state where insertion into a terminal insertion hole was completed. FIG. 9 is a perspective view showing a state where the end of the coaxial cable is connected to the coaxial cable terminal unit according to the second embodiment of the present invention. FIG. 10 is a top view of the terminal unit shown in FIG. FIG. 11 is a sectional view taken along line BB of FIG. FIG. 12A is a perspective view corresponding to FIG. 1 of a coaxial cable terminal unit according to a modification of the present invention, and FIG. 12B is an axial direction of the terminal unit shown in FIG. It is a longitudinal cross-sectional view along.

<First embodiment>
Hereinafter, a terminal unit 1 for a coaxial cable and a method of manufacturing the terminal unit 1 according to the first embodiment of the present invention will be described with reference to the drawings. Hereinafter, for convenience of explanation, in the axial direction of the terminal unit 1, a side (left side in FIG. 1) to which a mating terminal (not shown) is fitted is referred to as a front end side (front side), and an opposite side (right side in FIG. 1). ) Is called the proximal side (rear side).

<Configuration of terminal unit>
As shown in FIGS. 1 to 3 (particularly, see FIG. 3), the coaxial cable terminal unit 1 includes an inner conductor terminal 10, a lead-type electronic element 20, a cover 30, a housing 40, and an outer conductor. A terminal 50 and a joint terminal 60 are provided. The terminal unit 1 is used, for example, by being connected to the end of a coaxial cable 70 shown in FIG. The coaxial wire 70 is formed around a linear inner conductor 71, a cylindrical insulator 72 covering the outer periphery of the inner conductor 71, and an end outer periphery of a cylindrical outer conductor (braided conductor) covering the outer periphery of the insulator 72. It is composed of an outer conductor 73 (metal sleeve) fixed by crimping, and a cylindrical jacket 74 covering the outer periphery of the outer conductor.

  As the coaxial cable 70 connected to the terminal unit 1, typically, an antenna cable for a vehicle-mounted radio is assumed. For this reason, the terminal unit 1 has a built-in lead-type electronic element 20 for adjusting capacitance and improving noise resistance. Hereinafter, each component constituting the terminal unit 1 will be described in order.

  First, the inner conductor terminal 10 will be described. The metal inner conductor terminal 10 has a function of being connected to a counterpart terminal (not shown) and being electrically connected to the inner conductor 71 of the coaxial cable 70. As shown in FIG. 3, the inner conductor terminal 10 has a connection terminal 11 located at a distal end thereof, a wide portion 12 located at a base end thereof, and a width located between the connection terminal 11 and the wide portion 12. And a narrow portion 13.

  The connection terminal 11 has a cylindrical shape connected to the counterpart terminal. A mating terminal (male terminal) is inserted into the hollow portion (through hole) of the connection terminal 11. The wide portion 12 has a wide flat plate shape (strip shape). The wide portion 12 is fixed to the cover 30 using a pair of terminal holding portions 33 (described later) of the cover 30 (see FIG. 2). The narrow portion 13 has a flat plate shape (strip shape) whose width dimension is smaller than the wide portion 12.

  At the base end of the wide portion 12, a press contact body 14 formed of a pair of press contact blades 15 protruding upward is formed. The lead wire 21 of the electronic element 20 is fixed to the press-contact body 14.

  Next, the lead-type electronic element 20 will be described. A chip capacitor is typically used as the electronic element 20, but a chip resistor, a chip diode, a chip inductor, or the like may be used. As shown in FIG. 3, the electronic element 20 has a rectangular parallelepiped shape in this example, and a pair of lead wires 21 and 22 are linearly and coaxially arranged on one side from one side of the electronic element 20. It extends to extend. In other words, the electronic element 20 is eccentrically located with respect to the pair of lead wires 21 and 22 extending coaxially to opposite sides.

  As described above, the lead wire 21 of the electronic element 20 is fixed to the press-contact body 14 of the inner conductor terminal 10, and the lead wire 22 of the electronic element 20 is connected to the inner conductor 71 of the coaxial cable 70. (See FIG. 2). As described above, the electronic element 20 electrically connects the inner conductor terminal 10 and the inner conductor 71 of the coaxial cable 70 in series.

  Next, the cover 30 will be described. The cover 30 is held by the outer conductor terminal 50 and has a function of holding the inner conductor terminal 10, the electronic element 20, and the contact point between the press-contact body 14 of the inner conductor terminal 10 and the lead wire 21 of the electronic element 20. Have. As shown in FIG. 3, the resin cover 30 generally includes a bottom wall 31 extending in the axial direction, and a pair of side walls 32 rising upward from both ends in the width direction of the bottom wall 31 and extending in the axial direction. , And has a substantially U-shaped cross section that is open at the top and perpendicular to the axial direction.

  A pair of terminal holding portions 33 projecting inward in the width direction from a pair of side walls 32 at an interval from the bottom wall 31 are formed at the distal end of the cover 30. The wide part 12 of the inner conductor terminal 10 and the pressure contact body 14 are fixed to the terminal holding part 33 (see FIG. 2).

  The outer surface (lower surface) of the bottom wall 31 protrudes downward and the inner surface (upper surface) of the bottom wall 31 is depressed downward at a substantially central portion in the axial direction of the cover 30 (a position closer to the base end than the terminal holding portion 33). An element holding portion 34 having an elliptical shape is formed. The electronic element 20 is inserted and fixed in the concave portion of the element holding section 34 (see FIG. 2).

  Next, the housing 40 will be described. The housing 40 separate from the cover 30 houses and holds the connection terminal 11 of the inner conductor terminal 10 and is housed and held by the outer conductor terminal 50 to maintain the inner conductor terminal 10 and the outer conductor terminal 50 in an insulated state. Has functions. As shown in FIG. 3, the housing 40 is made of an insulating synthetic resin having a predetermined dielectric constant, and has a substantially cylindrical shape. The hollow portion (through hole) of the housing 40 functions as a terminal accommodating chamber 41 that accommodates and holds the connection terminal 11 of the inner conductor terminal 10 (see FIG. 2).

  Next, the outer conductor terminal 50 will be described. The outer conductor terminal 50 has a function of housing and holding the housing 40 and being electrically connected to an outer conductor (metal sleeve 73) of the coaxial cable 70. As shown in FIG. 3, the metal outer conductor terminal 50 is located at the distal end thereof and has a cylindrical shell portion 51 which houses the housing 40. The outer conductor terminal 50 is located at the base end of the outer conductor terminal 70 of the coaxial cable 70. An outer conductor crimping portion 52 for crimping the (metal sleeve 73) and a cover holding portion 53 which is located between the shell portion 51 and the outer conductor crimping portion 52 and holds the cover 30 are integrally provided.

  A mating terminal (male terminal) is inserted into the opening 54 on the distal end side of the shell portion 51 (see FIG. 2). The outer conductor crimping portion 52 is located on the distal end side and has a pair of caulking pieces 55 for crimping the outer conductor (metal sleeve 73) of the coaxial line 70, and the outer conductor crimping portion 52 is located on the base end side and has a sheath of the coaxial line 70. And a pair of caulking pieces 56 for crimping the base 74.

  The cover holding portion 53 is generally composed of a bottom wall 57 extending in the axial direction and a pair of side walls 59 rising upward from both ends in the width direction of the bottom wall 57 and extending in the axial direction. The cross section perpendicular to the axial direction has a substantially U-shaped shape. A rectangular opening (through hole) 58 is formed at a substantially central portion in the axial direction of the bottom wall 57. The element holding portion 34 of the cover 30 is inserted into the opening 58 (see FIG. 2).

  Next, the joint terminal 60 will be described. The joint terminal 60 has a function of connecting and fixing the lead wire 22 of the electronic element 20 and the inner conductor 71 of the coaxial wire 70. The metal joint terminal 60 has a U-shaped cross section perpendicular to the axial direction, and a pair of U-shaped ends function as a pair of caulking pieces. The configuration of each component constituting the terminal unit 1 shown in FIG. 1 has been described above.

<Production method of terminal unit>
Next, a method for manufacturing the terminal unit 1 shown in FIG. 1 to which the end of the coaxial cable 70 is connected will be described. First, as shown in FIG. 4, the housing 40 is axially inserted into and attached to the shell portion 51 of the outer conductor terminal 50, and the cover 30 is brought close to the outer conductor terminal 50 from above. Attached to the cover holding portion 53. In a state where the cover 30 is attached to the cover holding portion 53, as shown in FIG. 2, the element holding portion 34 of the cover 30 projects downward from the opening 58 of the cover holding portion 53, and the bottom wall 31 of the cover 30. Are in contact with the bottom wall 57 of the cover holding portion 53.

  Next, as shown in FIG. 5, the connection terminal 11 of the inner conductor terminal 10 is axially inserted into and attached to the terminal accommodating chamber 41 of the housing 40 provided in the shell portion 51 of the outer conductor terminal 50. The connection terminal 11 of the conductor terminal 10 is held by the housing 40, and the wide portion 12 and the pressure contact body 14 of the inner conductor terminal 10 are fixed by the pair of terminal holding portions 33 of the cover 30.

  Specifically, first, as shown in FIG. 5A, the inner conductor terminal 10 is approached from above toward the cover 30, and the narrow portion 13 of the inner conductor terminal 10 is moved to The inner conductor terminal 10 is placed on the bottom wall 31 of the cover 30 by passing through the space between the terminal holding portions 33. Next, the inner conductor terminal 10 is pushed toward the distal end side of the cover 30 while rubbing against the bottom wall 31 of the cover 30.

  Thereby, as shown in FIG. 5B, the connection terminal 11 of the inner conductor terminal 10 is inserted into the terminal accommodating chamber 41 of the housing 40, and the connection terminal 11 of the inner conductor terminal 10 (that is, the The distal end) is held by the housing 40. In addition, the wide portion 12 of the inner conductor terminal 10 enters the space between the bottom wall 31 of the cover 30 and the pair of terminal holding portions 33 so that the wide portion 12 is located between the pair of side walls 32 of the cover 30. And the press-contact body 14 of the inner conductor terminal 10 is kept in contact with the proximal end surfaces of the pair of terminal holding portions 33.

  As a result, the wide portion 12 and the press contact body 14 of the inner conductor terminal 10 (that is, the proximal end of the inner conductor terminal 10) are fixed to the pair of terminal holding portions 33 of the cover 30. Further, the pair of press-contact blades 15 of the press-contact body 14 are maintained in a state of being sandwiched by the pair of side walls 32 of the cover 30.

  Next, as shown in FIG. 6, the end of the inner conductor 71 of the coaxial cable 70 and the end of the lead wire 22 of the electronic element 20 that are exposed to the outside by the prior terminal processing are connected to a pair of the joint terminals 60. The lead wire 22 of the electronic element 20 and the inner conductor 71 of the coaxial wire 70 are coaxially and electrically connected by crimping and fixing using a caulking piece.

  Next, the electronic element 20 to which the inner conductor 71 of the coaxial cable 70 is connected is brought closer to the cover 30 from above, and is held and held in the recess of the element holding portion 34 of the cover 30 as shown in FIG. Thereby, the electronic element 20 is fixed to the element holding portion 34 of the cover 30. Further, a contact point (joint terminal 60) between the lead wire 22 of the electronic element 20 and the inner conductor 71 of the coaxial line 70 is placed on the bottom wall 31 on the base end side of the cover 30, and the lead wire 21 of the electronic element 20 is placed. Of the inner conductor terminal 10 is located above the press-contact body 14 of the inner conductor terminal 10.

  The fixing of the electronic element 20 may be performed by press-fitting the inner wall of the concave portion of the element holding portion 34, or by providing a rib protruding inward on a part of the inner wall of the concave portion of the element holding portion 34, 34 may be performed by press-fitting the ribs in the recesses. This prevents the electronic element 20 from falling out of the concave portion of the element holding section 34.

  Next, the outer conductor (metal sleeve 73) and the outer cover 74 of the coaxial cable 70, which are exposed to the outside by the prior terminal processing, are respectively connected to the pair of caulking pieces 55 and the pair of the outer conductor crimping portion 52 of the outer conductor terminal 50. Is fixed by crimping using the crimping piece 56 of FIG. As a result, the outer conductor terminal 50 and the outer conductor (braided conductor) of the coaxial cable 70 are electrically connected.

  Next, the end of the lead wire 21 of the electronic element 20 located above the press-contact body 14 of the inner conductor terminal 10 is pushed from above into the space between the pair of press-contact blades 15 of the press-contact body 14, thereby pressing the press-contact body. 14 and press-fitted. Thereby, the lead wire 21 of the electronic element 20 and the inner conductor terminal 10 are electrically connected. In addition, a contact point between the lead wire 21 of the electronic element 20 and the inner conductor terminal 10 (more specifically, a contact point with the press contact body 14) is fixed to the cover 30.

  Further, as described above, since the pair of press contact blades 15 are sandwiched by the pair of side walls 32 of the cover 30, the cover 30 restricts the pair of press contact blades 15 from opening outward in the width direction. For this reason, it is possible to suppress the pressing force of the pressing body 14 against the lead wire 21 from decreasing with time. Thus, the terminal unit 1 shown in FIG. 1 to which the end of the coaxial cable 70 is connected is completed.

  The terminal unit 1 to which the end of the coaxial cable 70 shown in FIG. 1 is connected is actually used in a state of being inserted into the terminal receiving hole 81 of the connector housing 80 as shown in FIG. (B)). In the terminal unit 1, the element holding portion 34 of the cover 30 protrudes laterally from the bottom wall 57 of the outer conductor terminal 50 (see FIG. 8A).

  Here, when the terminal unit 1 is inserted in the normal direction, the terminal housing hole 81 can receive the element holding portion 34 protruding sideward, and the terminal unit 1 is in an irregular direction (upside down). When inserted in the (orientated direction), the element holding portion 34 protruding laterally has a shape that cannot be received. This can prevent the terminal unit 1 from being erroneously assembled to the connector housing 80.

<Second embodiment>
Hereinafter, a terminal unit 1A for a coaxial cable according to a second embodiment of the present invention will be described with reference to the drawings. The terminal unit 1A has a structure for more appropriately regulating the axial position of the press contact body 14 (a pair of press contact blades 15) of the inner conductor terminal 10. Hereinafter, the terminal unit 1A will be described focusing on differences from the terminal unit 1 according to the above-described first embodiment.

  As shown in FIGS. 9 and 10, a pair of terminal holding portions 33 </ b> A protruding inward in the width direction from the pair of side walls 32 are formed at the distal end portion of the cover 30 </ b> A. As shown in the cross-sectional view of FIG. 11, the terminal holding portion 33 </ b> A sandwiches the press body 14 (the pair of press blades 15) from both the distal end side and the base end side in the axial direction, and closes the upper side of the press body 14. It is configured. In other words, the terminal holding portion 33A is provided with a hole that opens downward in FIG. 11, and the press-contact body 14 (a pair of press-contact blades 15) is inserted upward from below in this hole. It has become so.

  Further, the lower surface of the wide portion 12 that is bent toward the distal end below the pressure contact body 14 (the pair of pressure contact blades 15) is held by the housing 40 by being in close contact with the housing 40. The housing 40 is further held by the shell 51 of the outer conductor terminal 50.

  As described above, the press-contact body 14 (the pair of press-contact blades 15) is held by the terminal holding portion 33A and the housing 40, so that the press-contact body 14 (a pair of press-contact The movement of the pressure contact blade 15) is also restricted. Therefore, the contact point between the press contact body 14 and the lead wire 21 is more appropriately held, and the displacement of the contact point can be more reliably suppressed.

  In the above-described first embodiment as well, the wide portion 12 of the inner conductor terminal 10 is press-fitted into the cover 30, so that the movement of the press-contact body 14 (the pair of press-contact blades 15) to the proximal end side is restricted. (See FIG. 5). That is, the movement of the press contact body 14 (the pair of press contact blades 15) in any direction of the distal end side, the base end side, and the upper and lower sides is restricted, and the first embodiment and the second embodiment are the same. is there. However, in the second embodiment, the terminal holding portion 33A holds the press contact body 14 (a pair of press contact blades 15) so as to sandwich the press contact body 14 from both the distal end side and the base end side, so that the press contact body 14 (the pair of press contact blades 15) is more reliably. The movement of the press contact blade 15) to the proximal end side is regulated.

  In addition, since the terminal holding portion 33A has the above-described structure, when manufacturing the terminal unit 1A, the inner conductor terminal 10 is inserted into the terminal accommodating chamber 41 of the housing 40 in the axial direction, and then the inner conductor terminal 10 is attached. The terminal holding portion 33A of the cover 30 is brought closer to the press contact body 14 from above so as to cover the press contact body 14 (a pair of press contact blades 15) of the terminal 10. Then, the pressure contact body 14 is inserted into a hole provided in the terminal holding portion 33A. At this time, since the wide portion 12 is supported by the housing 40 and the shell portion 51, when the terminal holding portion 33A is inserted into the hole, the press contact body 14 (a pair of press contact blades 15) is unlikely to be displaced downward. Therefore, the terminal holding portion 33A and the pressure contact body 14 can be easily assembled.

<Action / Effect>
As described above, according to the terminal units 1 and 1A according to the first and second embodiments of the present invention, apart from the housing 40 having the terminal accommodating chamber 41 for accommodating the inner conductor terminal 10, the inner conductor terminal 10 and the lead A cover 30 is provided for holding a contact point (pressing body 14) with the wire 21. Therefore, the contact point (pressing member 14) is appropriately held, and displacement of the contact point can be suppressed. Further, since the housing 40 and the cover 30 are separate bodies, a structure for holding the contact points can be easily provided on the cover 30. Therefore, the reliability of the electrical connection between the inner conductor terminal 10 and the lead wire 21 can be maintained well.

  Furthermore, the inner conductor terminal 10 and the lead wire 21 can be connected by press-fitting the lead wire 21 into the press contact body 14 (a pair of press contact blades 15) provided on the inner conductor terminal 10 held by the cover 30. , The contact points can be held.

  Further, the cover 30 regulates the deformation of the press contact body 14 (opening of the pair of press contact blades 15) in the direction in which the pressing force on the lead wire 21 decreases (outside in the width direction). Therefore, it is possible to prevent the pressing force applied to the lead wire 21 by the pressure contact body 14 from decreasing with time, and to maintain the reliability of the electrical connection between the inner conductor terminal 10 and the lead wire 21 over a long period of time. .

  Further, according to the method of manufacturing the terminal units 1 and 1A according to the first and second embodiments of the present invention, the lead wire 21 extending from the electronic element 20 is press-fitted into the press-contact body 14 of the inner conductor terminal 10. By fixing, the inner conductor terminal 10 and the lead wire 21 can be connected. Furthermore, by holding the inner conductor terminal 10, the electronic element 20, and the contact point by the cover 30 so as to regulate the relative movement between the inner conductor terminal 10, the electronic element 20, and the contact point, the contact point is properly held. Thus, displacement of the contact point can be suppressed. Further, since the housing 40 and the cover 30 are separate bodies, the degree of design freedom of each of the housing 40 and the cover 30 is high, and a structure for holding a contact point can be easily provided on the cover 30.

  By the way, a large number of members (the inner conductor terminal 10, the electronic element 20, the coaxial wire 70, etc.) are arranged in the axial direction of the terminal unit 1, and a work space for fixing the lead wire 21 to the press-contact body 14 is provided. It may be difficult to secure. In this regard, according to the first and second embodiments, the work space can be easily secured by press-fitting the lead wire 21 from a direction (above) different from the axial direction of the outer conductor terminal 50, and the workability is improved. And production efficiency can be improved.

<Other forms>
The present invention is not limited to the above embodiments, and various modifications can be adopted within the scope of the present invention. For example, the present invention is not limited to the above-described embodiment, and can be appropriately modified and improved. In addition, the material, shape, size, number, location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

  In the first embodiment and the second embodiment, in particular, as shown in FIG. 2, as the electronic element 20, a pair of lead wires 21 and 22 extend from one side surface of the electronic element 20, and the electronic element 20 is A type which is eccentrically positioned with respect to a pair of lead wires 21 and 22 extending coaxially to opposite sides is adopted. Due to this, the element holding portion 34 of the cover 30 protrudes laterally (downward in FIG. 2). On the other hand, as shown in FIG. 9, as the electronic element 20, the lead wires 21 and 22 respectively extend from one side surface and the side surface opposite to the one side surface of the electronic element 20, and the electronic elements 20 are opposite to each other. A type coaxially positioned with respect to a pair of lead wires 21 and 22 extending coaxially to the side may be adopted.

  In this case, in particular, as shown in FIG. 9B, in the cover 30, instead of the element holding portion 34 projecting laterally, the electronic device has a central part projecting upward from the bottom wall 31 of the cover 30 and having a top surface. It is preferable that a pedestal portion 35 that is recessed downward is formed in accordance with the outer shape of the base 20.

  Furthermore, in the first and second embodiments, the member is a part of the inner conductor terminal 10 as a member fixed to the cover 30 and directly holding a contact point between the inner conductor terminal 10 and the lead wire 21. A pressure contact body 14 is employed. On the other hand, as the member, a member separate from the inner conductor terminal 10 may be employed.

Here, the features of the above-described terminal unit 1 according to the present invention and the method of manufacturing the terminal unit 1 will be briefly summarized and listed in the following (1) to (5).
(1)
An inner conductor terminal (10) connected to the counterpart terminal,
A lead-type electronic element (20) provided to connect the inner conductor terminal (10) and the inner conductor (71) of the coaxial cable (70);
The relative movement of the inner conductor terminal (10), the electronic element (20), and the contact point between the lead wire (21) extending from the electronic element (20) and the inner conductor terminal (10) is regulated. A cover (30) for holding the inner conductor terminal (10), the electronic element (20), and the contact point;
A housing (40) that houses the inner conductor terminal (10) and is separate from the cover (30);
A housing holding portion (51) in which the housing (40) is accommodated, an outer conductor crimping portion (52) connected to an outer conductor (73) of the coaxial cable (70), and the cover (30) are held. An outer conductor terminal (50) having a cover holding portion (53).
Terminal unit for coaxial cable (1, 1A).
(2)
In the terminal unit (1, 1A) according to the above (1),
The inner conductor terminal (10)
A connection terminal (11) connected to the counterpart terminal,
A pressure contact body (14) that fixes the lead wire (21) in a sandwiched state while pressing the lead wire (21) and constitutes the contact point portion.
Terminal unit for coaxial cable (1, 1A).
(3)
In the terminal unit (1, 1A) according to the above (2),
The cover (30)
Holding the press contact body (14) so as to restrict the press contact body (14) from being deformed in a direction in which the pressing force on the lead wire (21) is reduced;
Terminal unit for coaxial cable (1, 1A).
(4)
An inner conductor terminal (10) connected to the counterpart terminal, a lead-type electronic element (20), a cover (30) for housing the electronic element, and a separate housing for housing the inner conductor terminal and separate from the cover; A terminal unit (50) for a coaxial line, comprising: a body housing (40); and an outer conductor terminal (50) to which the housing and the cover are attached and connected to an outer conductor (73) of the coaxial line (70). 1,1A), wherein
Attaching the housing (40) to a housing holding portion (51) of the outer conductor terminal (50);
Attaching the cover (30) to a cover holding portion (53) of the outer conductor terminal (50);
Housing the connection terminal (11) of the inner conductor terminal (10) in the housing (40);
Connecting one lead wire (22) extending from the electronic element (20) to the inner conductor (71) of the coaxial cable;
The other lead wire (21) of the electronic element (20) is press-fitted and connected to the press contact body (14) of the inner conductor terminal (10), so that the inner conductor terminal and the other lead wire are connected. A step of configuring a contact point with
Housing the electronic element (20) in the cover (30);
Crimping an outer conductor crimping portion (52) of the outer conductor terminal (50) to the outer conductor (73) of the coaxial line to connect the outer conductor (73).
The cover (30)
The inner conductor terminal, the electronic element, and the contact point are configured to be held so as to regulate relative movement between the inner conductor terminal (10), the electronic element (20), and the contact point.
A method of manufacturing a terminal unit for a coaxial cable.
(5)
In the production method according to the above (4),
The terminal unit (1, 1A)
The housing (40), the inner conductor terminal (10), the electronic element (20), the cover (30), and the coaxial line (70) extend along the axial direction of the outer conductor terminal (50). Configured to be deployed,
In the step of press-fitting the other lead wire (21) into the press-contact body (14) to form the contact point, the other lead wire (21) is press-fitted from a direction different from the axial direction. Press into the body (14),
A method of manufacturing a terminal unit for a coaxial cable.

1, 1A terminal unit 10 inner conductor terminal 11 connection terminal 14 pressure contact body 20 electronic element 21 lead wire 30, 30A cover 33, 33A terminal holding part 40 housing 41 terminal accommodating chamber 50 outer conductor terminal 51 shell part (housing holding part)
52 outer conductor crimping part 53 cover holding part 70 coaxial line 71 inner conductor 73 outer conductor

Claims (5)

An inner conductor terminal connected to the mating terminal,
A lead-type electronic element provided to connect the inner conductor terminal and the inner conductor of the coaxial line,
The inner conductor terminal, the electronic element, and the electronic element, so as to regulate the relative movement of a lead wire extending from the electronic element and a contact point between the inner conductor terminal, A cover for holding contact points,
A housing that houses the inner conductor terminal and is separate from the cover;
A housing holding portion for holding the housing, an outer conductor crimping portion connected to the outer conductor of the coaxial wire, and an outer conductor terminal having a cover holding portion for holding the cover,
Terminal unit for coaxial cable. The terminal unit according to claim 1,
The inner conductor terminal,
A connection terminal connected to the counterpart terminal,
And a press-contact body that is fixed while being sandwiched while pressing the lead wire and that constitutes the contact point.
Terminal unit for coaxial cable. The terminal unit according to claim 2,
The cover,
Holding the press-contact body so as to regulate that the press-contact body is deformed in a direction in which the pressing force on the lead wire is reduced,
Terminal unit for coaxial cable. An inner conductor terminal connected to the counterpart terminal, a lead wire type electronic element, a cover for housing the electronic element, a housing for housing the inner conductor terminal and separate from the cover, the housing and the housing An outer conductor terminal to which a cover is attached and connected to an outer conductor of the coaxial line, and a method of manufacturing a terminal unit for a coaxial line, comprising:
Attaching the housing to a housing holding portion of the outer conductor terminal;
A step of attaching the cover to a cover holding portion of the outer conductor terminal,
A step of housing the connection terminal of the inner conductor terminal in the housing,
Connecting one of the lead wires extending from the electronic element to the inner conductor of the coaxial line,
A step of forming a contact point between the inner conductor terminal and the other lead wire by press-fitting and connecting the other lead wire of the electronic element to the press contact body of the inner conductor terminal;
A step of housing the electronic element in the cover;
A step of crimping and connecting an outer conductor crimping portion of the outer conductor terminal to the outer conductor of the coaxial line,
The cover,
The inner conductor terminal, the electronic element and the contact point are configured to be held so as to regulate relative movement between the inner conductor terminal, the electronic element, and the contact point,
A method of manufacturing a terminal unit for a coaxial cable. In the manufacturing method according to claim 4,
The terminal unit,
The housing, the inner conductor terminal, the electronic element, the cover, and the coaxial line are configured to be arranged along the axial direction of the outer conductor terminal,
In the step of press-fitting the other lead wire into the press-contact body to form the contact point,
Press-fitting the other lead wire into the press-contact body from a direction different from the axial direction,
A method of manufacturing a terminal unit for a coaxial cable.

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