JP2024002869A - Terminal unit and connector equipped with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a terminal unit in which impedance matching is strengthened by suppressing an excessive increase in impedance at a crimping portion.

SOLUTION: A terminal unit 15 includes an internal terminal 150 connected to an internal conductor 91 of a shielded cable 90B, a dielectric member 160 that holds the internal terminal 150, and an external terminal 170 connected to an external conductor 93. The terminal unit 15 further includes a conductive impedance adjustment member 180 formed separately from the internal terminal 150 and the external terminal 170. The impedance adjustment member 180 includes an adjustment unit 80 located between the external terminal 170 and the internal terminal 150 and at a position where the impedance of a crimp portion 54 can be adjusted.

SELECTED DRAWING: Figure 18

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present disclosure relates to a terminal unit and a connector including the same.

Patent Document 1 discloses a terminal unit that is attached to a shielded cable. This terminal unit includes an internal terminal that connects to the inner conductor of the shielded cable, a dielectric member that holds the internal terminal, and an external terminal that connects to the outer conductor of the shielded cable and accommodates the internal terminal and the dielectric member. have. The internal terminal has a crimp portion that is crimped to the internal conductor.

Japanese Patent Application Publication No. 2008-181810

In the terminal unit as described above, impedance may increase excessively at the crimp portion.

One object of the present disclosure is to provide a terminal unit and a connector including the same, in which impedance is prevented from increasing excessively in a crimp portion and impedance matching is enhanced.

The terminal unit according to the first aspect is a terminal unit attached to a shielded cable having one or more internal conductors and an outer conductor that shields the one or more internal conductors, the terminal unit one or more internal terminals that connect to the one or more internal conductors, a dielectric member that holds the internal terminals, and an external terminal that connects to the external conductor and accommodates the internal terminals; a conductive impedance adjustment member formed separately from the internal terminal and the external terminal, the internal terminal includes a crimp portion that is crimped to the internal conductor, and the impedance adjustment member An adjustment section is provided at a position between the terminal and the internal terminal so that the impedance of the crimp section can be adjusted.

In this aspect, the terminal unit is attached to the shielded cable. A shielded cable has one or more inner conductors and an outer conductor that shields the one or more inner conductors.
The terminal unit includes one or more internal terminals connected to one or more internal conductors, a dielectric member holding the internal terminals, and an external terminal connected to the external conductors. The external terminal accommodates the internal terminal. The internal terminal includes a crimp portion that is crimped to the internal conductor.

Here, the terminal unit further includes a conductive impedance adjustment member formed separately from the internal terminal and the external terminal. The impedance adjustment member has an adjustment part disposed between the external terminal and the internal terminal and at a position where the impedance of the crimp part can be adjusted.
Therefore, an excessive increase in impedance at the crimp portion is suppressed, and a terminal unit with enhanced impedance matching can be obtained.

In addition, in the embodiment described later, an example will be described in which the adjustment section is arranged at a position overlapping the crimp section in the front-rear direction. However, the adjustment section of this aspect is not limited thereto, and may be disposed near the crimping section to such an extent that the impedance of the crimping section can be adjusted. That is, the above-mentioned "position where the impedance of the crimp part can be adjusted" is not a requirement that needs to be strictly interpreted. Note that in the present disclosure, the front-rear direction (axial direction) means a direction parallel to the portion of the internal conductor that is crimped to the crimping portion.
Furthermore, in the embodiments described below, an example will be described in which the entire impedance adjustment member is located between an external terminal and an internal terminal. However, the impedance adjustment member of this aspect is not limited to this, and the adjustment portion may be located between the external terminal and the internal terminal.
Further, in the embodiments described below, an example will be described in which the impedance adjustment member is electrically connected to an external terminal or an external conductor. However, the impedance adjustment member of this embodiment is not limited to this, and may not be electrically connected to an external terminal or an external conductor.
Furthermore, in the embodiments described below, an example will be described in which the impedance adjustment member is arranged on the outer surface of the dielectric member. However, the impedance adjusting member of this aspect is not limited thereto, and may be arranged on the inner surface of the dielectric member, or may be inserted or buried within the wall of the dielectric member.
Further, in the embodiments described below, an example will be described in which the dielectric member has a recessed portion in which an impedance adjustment member is arranged. However, the dielectric member of this embodiment is not limited to this, and may not have such a recess.
Furthermore, in the embodiments described later, an example will be described in which the impedance adjustment member is fixed to a dielectric member or an external terminal. However, the impedance adjustment member of this embodiment is not limited to this, and may be provided so as to be slightly movable with respect to the dielectric member or the external terminal.
Further, in the embodiments described below, an example will be described in which the terminal unit is attached to a shielded cable having one internal conductor. However, the terminal unit of this embodiment is not limited to this, and may be attached to a shielded cable having two or more internal conductors. In this case, the terminal unit will include two or more internal terminals.
Furthermore, in the embodiments (other than Modification 3) described later, an example will be described in which the external terminal has a first crimping part, and the external terminal and the external conductor are (electrically) connected at the first crimping part. However, the external terminal of this embodiment is not limited to this. The external terminal of this aspect may not have the first crimp portion and may be (electrically) connected to the external conductor via another member (see Modification 3).

In the terminal unit according to a second aspect, in the first aspect, the external terminal has a main body portion that accommodates the internal terminal, and the internal space of the main body portion is open to the rear side. The adjustment portion has a lid portion that orients the plate thickness direction in a direction intersecting a plane perpendicular to the front-rear direction, and is arranged to narrow the opening.

In this aspect, the external terminal has a main body portion that accommodates the internal terminal. Here, the main body part is formed with an opening through which the internal space of the main body part is opened to the rear side. Therefore, compared to a mode in which such an opening is not formed in the main body, it is easier to manufacture an external terminal including the main body.

Furthermore, the adjustment section has a lid section. The lid portion is a portion whose plate thickness direction is oriented in a direction intersecting a plane perpendicular to the front-rear direction, and is arranged so as to narrow the opening. Therefore, the opening of the main body is narrowed, and crosstalk between the internal terminals and other electronic components can be prevented.
In the embodiments described below, an example will be described in which the lid portion has a portion (flat plate portion 83) whose thickness direction is oriented in a direction perpendicular to a plane perpendicular to the front-rear direction (that is, the front-rear direction). However, the lid portion of this embodiment is not limited to this, and may not have a portion that faces the thickness direction in the front-rear direction. For example, the flat portion of the lid may have its thickness direction oriented obliquely with respect to the front-rear direction. Moreover, the lid part does not need to have a flat part.

In the terminal unit according to a third aspect, in the second aspect, the lid portion includes a pair of side plate portions arranged to sandwich the internal conductor, and an upper plate portion that connects the pair of side plate portions to each other. A passage portion through which the internal conductor passes in the front-rear direction is formed between the pair of side plate portions, and the passage portion is open in one direction perpendicular to the front-rear direction.

In this aspect, the lid includes a pair of side plates arranged to sandwich the internal conductor, and an upper plate that connects the pair of side plates to each other. A passage portion through which the internal conductor passes in the front-rear direction is formed between the pair of side plate portions, and the passage portion is open in one direction perpendicular to the front-rear direction.
Therefore, when assembling the terminal unit, the impedance adjusting member can be placed from one direction perpendicular to the front-back direction with respect to the internal conductor. Therefore, assembly of the terminal unit becomes easy.

In the terminal unit according to a fourth aspect, in any one of the first to third aspects, the adjustment section has a front-back direction extending in the front-back direction with the plate thickness direction in a direction along a plane perpendicular to the front-back direction. Has a local office.

In this aspect, the adjustment portion has a portion extending in the front-rear direction. The front-rear direction extending portion extends in the front-rear direction with the plate thickness direction in a direction along a plane perpendicular to the front-rear direction.
For this reason, impedance matching can be strengthened compared to a mode in which the adjustment section does not have a longitudinally extending section.
In addition, in the embodiment described later, an example will be described in which the front-back direction extending portion has the plate thickness direction oriented in a direction parallel to a plane perpendicular to the front-back direction. However, the longitudinally extending portion of this aspect is not limited to this, and the plate thickness direction may be oriented in a direction slightly inclined with respect to a plane perpendicular to the longitudinal direction. That is, the above-mentioned "direction along a plane" includes directions parallel to the plane as well as directions slightly inclined with respect to the plane.

In the terminal unit according to a fifth aspect, in the fourth aspect, the front-back extending portion connects a pair of opposing plate portions that face each other so as to sandwich the internal terminal, and a pair of opposing plate portions. It has a connecting plate part.

In this aspect, the front-rear extending portion includes a pair of opposing plate portions that face each other so as to sandwich the internal terminal therebetween, and a connecting plate portion that connects the pair of opposing plate portions to each other.
For this reason, impedance matching can be strengthened, for example, compared to a mode in which the longitudinally extending portions are not formed so as to sandwich the internal terminals.

In the terminal unit according to a sixth aspect, in the fifth aspect, the three plate portions, the pair of opposing plate portions and the connecting plate portion, are each in contact with the external terminal.

In this aspect, each of the three plate portions, the pair of opposing plate portions and the connecting plate portion, is in contact with the external terminal. Therefore, generation of resonance noise due to these plate portions and the external terminals can be suppressed.

In the terminal unit according to a seventh aspect, in the sixth aspect, the contact between each of the three plate portions and the external terminal is provided by a projection formed on at least one of the longitudinally extending portion or the external terminal. This is realized through the shape part.

In this aspect, each of the three plate portions (a pair of opposing plate portions and a connecting plate portion) and the external terminal are brought into contact via the protruding portion formed on at least one of the front-rear extending portion or the external terminal. Realized. Note that the protruding portion is a portion that is formed to protrude from an adjacent portion, and the top portion of the protruding portion is connected to the adjacent portion by a path in two or more directions. Therefore, a cantilever spring such as a spring piece does not correspond to a protrusion, but a double-end spring (the top and an adjacent part are connected by a path in two directions) corresponds to a protrusion.
For this reason, a stable contact state can be maintained compared to a mode in which the flat parts are brought into contact with each other. Moreover, in comparison with a mode in which contact is made via a cantilever spring such as a spring piece, parasitic inductance in the impedance adjustment member or the external terminal can be reduced.

In the terminal unit according to an eighth aspect, in the sixth aspect, contact between each of the three plate portions and the external terminal is realized via a protrusion formed on the external terminal.

In this aspect, contact between each of the three plate parts and the external terminal is achieved via the protrusion formed on the external terminal.
For this reason, compared to a mode in which the protruding part is formed in the longitudinally extending portion of the impedance adjusting member, it is easier to form the protruding part large. This is because it is easier to form the external terminal larger than the longitudinally extending portion. As a result, contact between the external terminal and the impedance adjustment member can be stabilized.

In the terminal unit according to the ninth aspect, in any one of the first to fifth aspects, the impedance adjusting member and the external terminal are in contact with each other and electrically connected.

In this aspect, the impedance adjustment member and the external terminal are in contact with each other and electrically connected. Therefore, the potential of the impedance adjusting member is stabilized.

In the terminal unit according to a tenth aspect, in the ninth aspect, the contact between the impedance adjusting member and the external terminal includes a protrusion formed on at least one of the impedance adjusting member and the external terminal. This is realized through

In this aspect, contact between the impedance adjustment member and the external terminal is achieved via a protrusion formed on at least one of the impedance adjustment member and the external terminal.
For this reason, a stable contact state can be maintained compared to a mode in which the flat parts are brought into contact with each other. Moreover, in comparison with a mode in which contact is made via a cantilever spring such as a spring piece, parasitic inductance in the impedance adjustment member or the external terminal can be reduced.

In the terminal unit according to an eleventh aspect, in any one of the first to tenth aspects, the impedance adjustment member is arranged on the outer surface of the dielectric member, and the impedance adjustment member is arranged on the outer surface of the dielectric member. A placement recess is formed in which the member is placed.

In this aspect, the impedance adjustment member is arranged on the outer surface of the dielectric member. A placement recess in which the impedance adjustment member is placed is formed on the outer surface of the dielectric member.
Therefore, the dielectric member and the impedance adjusting member can be efficiently accommodated in the external terminal.

In the connector according to a twelfth aspect, in any one of the first to eleventh aspects, the terminal unit includes a conductive sleeve disposed outside an insulating coating covering the internal conductor, and the sleeve and The impedance adjusting member is in contact with the impedance adjusting member.

In this aspect, the terminal unit includes a conductive sleeve disposed outside the insulating sheath covering the internal conductor. Therefore, changes in the cross-sectional shape of the insulating coating covering the internal conductor are suppressed, and as a result, impedance is kept constant.
Further, the sleeve and the impedance adjustment member are in contact with each other. Therefore, resonance, which causes noise, is suppressed.

In each of the embodiments described below, an example will be described in which the sleeve contacts the lid of the impedance adjustment member. However, this embodiment is not limited to this. The sleeve of this aspect may contact other parts of the impedance adjustment member (for example, the opposing plate part).
Moreover, in each embodiment described later, an example will be described in which the contact between the sleeve and the impedance adjustment member is press contact. However, this embodiment is not limited to this.
Moreover, the sleeve and the impedance adjustment member may be bonded or welded.

In the connector according to a thirteenth aspect, in the twelfth aspect, the sleeve is formed as a cut product, a die-cast product, or an injection molded product.

In this embodiment, the sleeve is formed as a machined part, die cast part or injection molded part. Therefore, compared to a method in which the sleeve is formed by pressing a sheet metal, the dimensional accuracy of the sleeve can be improved, and as a result, the contact between the sleeve and the impedance adjustment member can be made more reliable.
Furthermore, since this embodiment has a high degree of freedom in the shape of the sleeve, it is suitable for combination with an embodiment in which the impedance adjusting member has the first crimp portion. That is, in an embodiment in which the impedance adjustment member has the first crimp portion, the degree of freedom in designing the impedance adjustment member is reduced with respect to the structure for contacting the sleeve, since the first crimp portion must be formed. To compensate for this, it is preferable to form the sleeve as a machined part, a die-cast part or an injection molded part.

In the connector according to a fourteenth aspect, in the twelfth or thirteenth aspect, the contact between the sleeve and the impedance adjustment member is press contact.

In this aspect, the contact between the sleeve and the impedance adjustment member is press contact. Therefore, it is possible to prevent the sleeve and the impedance adjusting member from coming out of contact due to manufacturing tolerances of the sleeve, vibrations during use, or the like.
In the embodiments described below, an example will be described in which the pressing contact direction between the sleeve and the impedance adjustment member is both the front-rear direction and the direction perpendicular to the front-rear direction (specifically, the width direction). However, this embodiment is not limited to this.

In the connector according to a fifteenth aspect, in the fourteenth aspect, the impedance adjustment member has a biasing portion that biases the sleeve toward the impedance adjustment member.

In this aspect, the impedance adjustment member has a biasing portion that biases the sleeve toward the impedance adjustment member. Therefore, the impedance adjusting member and the sleeve can be brought into pressure contact without increasing the number of parts.

In the connector according to a sixteenth aspect, in any one of the twelfth to fifteenth aspects, the adjustment section has a lid section with a plate thickness direction oriented in a direction intersecting a plane perpendicular to the front-rear direction, and the lid The portion has a side plate portion formed in a cantilever shape, and the sleeve contacts the side plate portion.

In this aspect, the lid portion has a side plate portion formed in a cantilever shape. Therefore, the lid portion having the side plate portion can be formed by bending processing instead of drawing processing, and as a result, manufacturing costs can be reduced.
Further, the sleeve contacts the cantilever-shaped side plate portion. Therefore, resonance, which causes noise, is suppressed.
In addition, in the embodiment described later, an example will be described in which a pair of side plate portions are formed. However, the side plate portion of this embodiment is not limited to this.

In the connector according to a seventeenth aspect, in any one of the first to sixteenth aspects, the terminal unit includes a conductive sleeve disposed outside an insulating coating covering the internal conductor, and The member has a projection disposed within the sleeve.

In this aspect, the terminal unit includes a conductive sleeve disposed outside the insulating sheath covering the internal conductor. Therefore, changes in the cross-sectional shape of the insulating coating covering the internal conductor are suppressed, and as a result, impedance is kept constant.
The dielectric member also has a protruding portion disposed within the sleeve. Therefore, an increase in impedance at the portion of the internal conductor exposed from the insulation coating can be suppressed.

Specifically, it is difficult to make the length of the portion of the internal conductor exposed from the insulation coating constant. If the exposed portion is long, the air layer formed between the sleeve and the internal conductor will also be long, resulting in an increase in impedance at that portion.
Therefore, in this aspect, since a part of the dielectric member (the protrusion part) is disposed within the sleeve, it is possible to suppress the formation of a large air layer between the sleeve and the internal conductor. As a result, an increase in impedance at the portion of the internal conductor exposed from the insulation coating can be suppressed.

In addition, in the embodiment described later, an example in which the plunger has a cylindrical shape will be described, but the plunger in this aspect is not limited to this.

In the connector according to an eighteenth aspect, in the seventeenth aspect, the plunger is formed into a cylindrical shape so as to surround the internal conductor.

In this aspect, the plunger is formed into a cylindrical shape so as to surround the internal conductor. Therefore, the effect of suppressing an increase in impedance can be enhanced.
In the embodiments to be described later, an example will be described in which the protruding portion surrounds the internal conductor without any gap in the direction around the axis. However, the protruding portion of this aspect is not limited to this, and a slit or the like may be formed.

In the connector according to a nineteenth aspect, in the tenth aspect, the protruding portion is formed on the external terminal, and the impedance adjusting member has an elastic contact portion that elastically contacts the protruding portion.

In this aspect, the protrusion is formed on the external terminal. The impedance adjusting member has an elastic contact portion that elastically contacts the protrusion. Therefore, the ease of assembling the external terminal with the protruding portion formed therein is improved.

Note that this aspect corresponds to Modification 1, which will be described later.
Further, as in Modification 1, it is preferable that the dielectric member has an avoidance recess at a position corresponding to the elastic contact portion. By forming the avoidance recess, the elastic contact portion pressed by the protrusion can escape into the avoidance recess. However, unlike Modification 1, the elastic contact portion may be made thinner so that the surface of the elastic contact portion facing the dielectric member has a concave shape. Such an elastic contact portion can also be elastically deformed by contact with the protrusion. Further, such an elastic contact portion and an avoidance recess formed in the dielectric member may be combined.
Further, it is preferable that the elastic contact portion is formed in a state where the plate surface is maintained (a state where a flat plate surface is maintained without being subjected to bending processing). By doing so, the impedance adjusting member can be easily arranged at a position between the external terminal and the internal terminal. More specifically, during assembly (step of inserting the dielectric member into the main body of the external terminal), it is possible to suppress the elastic contact portion from being caught on the main body of the external terminal.

In the connector according to a 20th aspect, in the 19th aspect, a through hole is formed in the impedance adjusting member, and the elastic contact portion is a double-sided spring formed so as to divide the through hole.

In this aspect, a through hole is formed in the impedance adjusting member, and the elastic contact portion is a double-sided spring formed so as to divide the through hole. Therefore, the inductance parasitic to the impedance adjusting member or the external terminal can be reduced compared to the case where the elastic contact portion is a cantilever spring.

In the connector according to a twenty-first aspect, in any one of the first to twentieth aspects, the terminal unit includes a conductive sleeve disposed outside an insulating coating that covers the internal conductor, and the sleeve and The impedance adjusting member is locked to each other in the front-back direction, and the impedance adjusting member and the dielectric member are locked to each other in the front-back direction.

In this aspect, the terminal unit includes a conductive sleeve disposed outside the insulating sheath covering the internal conductor. Therefore, changes in the cross-sectional shape of the insulating coating covering the internal conductor are suppressed, and as a result, impedance is kept constant.
Moreover, the sleeve and the impedance adjustment member are locked to each other in the front-back direction, and the impedance adjustment member and the dielectric member are locked to each other in the front-back direction. Therefore, it is possible to prevent the sleeve, the impedance adjustment member, and the dielectric member from being separated by external force (particularly, a force that pulls the shielded cable during use).
In addition, "mutually locked in the front-back direction" means that the relative positions of each other in the front-back direction do not change by engaging with each other.

In the connector according to a twenty-second aspect, in any one of the first to twenty-first aspects, the impedance adjusting member has a first crimp portion that is crimp-bonded to the external conductor, and the external terminal is connected to the dielectric member. The shield cable has a main body part that can be inserted from the rear, and a second crimping part that is formed rearward of the main body part and is crimped to the shielded cable.

If the external terminal has a first crimp portion, it is usually necessary to form a stepped portion in advance between the main body portion and the first crimp portion. However, this stepped portion makes it difficult to insert the dielectric member into the main body from the rear.
Therefore, in this aspect, the impedance adjustment member has a first crimp portion that is crimp-bonded to the outer conductor, and the external terminal does not have a crimp portion that crimp-bonds to the outer conductor. Therefore, the external terminal can be structured so that the dielectric member can be easily inserted from the rear of the main body.
Note that this aspect corresponds to Modification 3, which will be described later. In Modification 3, an example will be described in which the second crimping part is directly crimped to the outer surface of the outer covering of the shielded cable, but the second crimping part of this embodiment is not limited to this. For example, the outer conductor of the shielded cable may have a two-layer structure of foil and braid, and the braid may be folded back to the outside of the outer covering, and the second crimping portion may be crimped to the folded portion.

In the connector according to a twenty-third aspect, in the tenth aspect, the protruding portion is formed on the external terminal, and the external terminal has an elastic support portion that elastically supports the protruding portion.

In this aspect, the protrusion is formed on the external terminal. The external terminal includes an elastic support portion that elastically supports the protrusion. For this reason, compared to a mode in which the protruding part and the elastic support part are formed on the impedance adjustment member, it is easier to form the protrusion part and the elastic support part larger.
In addition, it is preferable that the elastic support part is a double-sided spring from the viewpoint of reducing parasitic inductance in the external terminal.
Note that this aspect corresponds to Modifications 2 and 3, which will be described later.

A connector according to a twenty-fourth aspect includes a plurality of terminal units according to any one of the first to twenty-third aspects, and a housing that holds the plurality of terminal units.

In this aspect, the connector includes a plurality of terminal units and a housing that holds the plurality of terminal units. Since the terminal unit has enhanced impedance matching, it is possible to provide a connector with enhanced impedance matching.

FIG. 2 is a perspective view (right half sectional view) showing the connector of the embodiment. FIG. 2 is an exploded perspective view (right half sectional view) showing the connector of the embodiment. It is a perspective view showing a terminal unit. It is an exploded perspective view showing a terminal unit. FIG. 3 is a perspective view showing an internal terminal. FIG. 3 is a cross-sectional view of the terminal unit (a cross-section perpendicular to the vertical direction of the unit). FIG. 3 is a cross-sectional view of the terminal unit (a cross-section perpendicular to the width direction of the unit). FIG. 2 is a perspective view of the terminal unit with external terminals and dielectric members omitted, showing a state where it is attached to a shielded cable. FIG. 2 is an enlarged perspective view of the vicinity of an impedance adjustment section of an internal terminal connected to a shielded cable. FIG. 2 is a perspective view (left half sectional view) showing the connector of the embodiment. FIG. 2 is an exploded perspective view (left half sectional view) showing the connector of the embodiment. It is an exploded perspective view showing a terminal unit. FIG. 3 is a perspective view showing an internal terminal. It is a perspective view showing a dielectric member and an impedance adjustment member. FIG. 3 is a perspective view showing an external terminal. FIG. 3 is a perspective view showing the terminal unit with external conductors omitted. It is a perspective view of a terminal unit. FIG. 3 is a cross-sectional view of the terminal unit along the front-rear direction. FIG. 19 is a cross-sectional view (cross-sectional view taken along the line 19-19 in FIG. 18) of the terminal unit perpendicular to the front-rear direction. FIG. 7 is an exploded perspective view of a terminal unit according to Modification 1. 7 is a perspective view of a terminal unit according to Modification 1. FIG. FIG. 7 is a perspective view showing a dielectric member and an impedance adjusting member according to Modification 1. FIG. FIG. 7 is a diagram illustrating a terminal unit according to Modification Example 1 with external terminals omitted. 7 is a diagram showing a terminal unit according to modification 1. FIG. 7 is a sectional view showing a sleeve according to modification 1. FIG. FIG. 7 is an enlarged cross-sectional view of a plunge portion according to modification 1; FIG. 7 is an exploded perspective view of a terminal unit according to Modification 2. FIG. FIG. 7 is a perspective view of a terminal unit according to modification example 2. FIG. 7 is a perspective view showing a dielectric member and an impedance adjusting member according to Modification 2. FIG. 7 is a diagram illustrating a terminal unit according to modification 2. FIG. FIG. 7 is an exploded perspective view showing a terminal unit according to Modification 3. FIG. 7 is a perspective view showing a terminal unit according to Modification 3. FIG. 7 is a perspective view showing a dielectric member, an impedance adjusting member, and a sleeve according to Modification 3. FIG. 7 is a diagram showing a terminal unit according to Modification Example 3 with external terminals omitted. 7 is a diagram illustrating a terminal unit according to modification example 3. FIG. FIG. 7 is a cross-sectional perspective view showing an impedance adjustment member according to Modification 3. FIG. 7 is a cross-sectional view showing a protruding portion according to modification example 3;

The connector 100 according to the embodiment will be described below.

(Connector 100)
1 and 10 show a connector 100 along with a plurality of shielded cables 90A and 90B. Note that FIG. 1 shows the right half of the connector 100, and FIG. 10 shows the left half of the connector. The right half and the left half of the connector 100 have different types of built-in terminal units 14 and 15.

In each figure, arrow X indicates the front direction of the connector, arrow Y indicates one side (left side) in the width direction of the connector, and arrow Z indicates the upward direction of the connector.

The connector 100 includes a housing 12 having a substantially rectangular parallelepiped shape and a plurality of terminal units 14 and 15 housed in the housing 12.

The housing 12 has a plurality of terminal unit accommodating portions 12a. Terminal units 14 and 15 are accommodated in the terminal unit accommodating portion 12a. The terminal unit accommodating portion 12a penetrates the housing 12 in the X direction (connector front-rear direction).

The plurality of terminal unit accommodating parts 12a are comprised of a plurality of terminal unit accommodating parts 12a located at the upper part of the housing 12 and a plurality of terminal unit accommodating parts 12a located at the lower part of the housing 12.

The terminal unit accommodating portion 12a is configured such that the terminal units 14 and 15 can be inserted from the −X direction (backward direction of the connector). Further, the terminal unit accommodating portion 12a is configured so that the terminal units 14 and 15 inserted into the terminal unit accommodating portion 12a do not come out in the +X direction.

The housing 12 has an elastic locking portion 12b for maintaining the connection between the connector 100 and a mating connector (connection target, not shown). The elastic locking portion 12b has an operating portion 12b1 and a claw portion 12b2. By pressing down the operating part 12b1 and displacing the claw part 12b2, the connection between the connector 100 and the mating connector can be released. The elastic locking portion 12b is formed at the top of the housing 12.

The connector 100 has a locking portion fixing member 16. When the locking portion fixing member 16 is attached to the housing 12, the elastic locking portion 12b is prevented from being bent. As a result, the connector 100 is prevented from being disconnected from the mating connector.

The connector 100 includes a retaining member 18. When the retaining member 18 is attached, the terminal units 14 and 15 are prevented from slipping out from the terminal unit accommodating portion 12a in the -X direction (backward direction of the connector).

(Terminal unit 14)
Next, the terminal unit 14 will be explained using FIGS. 3 to 9.

In each figure, arrow X indicates the front direction of the unit (one side in the axial direction), arrow Y indicates the upward direction of the unit, and arrow Z indicates one side in the width direction of the unit. That is, the terminal unit 14 is arranged with one side in the width direction facing upward of the connector.

The terminal unit 14 is attached to a shielded cable 90A having two internal conductors 91 (see FIG. 6).
As shown in FIG. 4, the terminal unit 14 includes a second internal terminal 20, a dielectric member 30, and an external terminal 40.

(internal terminal 20)
FIG. 5 shows an enlarged view of the internal terminal 20. As shown in FIG.
The internal terminal 20 is a member connected to the internal conductor 91 of the shielded cable 90A. The internal terminal 20 is manufactured by bending a metal plate into a cylindrical shape. The internal terminal 20 has a structure that is substantially symmetrical in the unit width direction (Z direction).

Note that in the following description, the radial direction means a direction perpendicular to a virtual central axis AX passing through the center of the internal terminal 20 and parallel to the front-rear direction of the unit. The radially outer side means the direction away from the central axis AX in the radial direction.

The internal terminal 20 includes a contact portion 21, a cylindrical portion 22, a connecting portion 23, a crimp portion 24, and an impedance adjustment portion 25 in this order from the front side to the rear side.

The contact portion 21 is a portion that comes into contact with a signal terminal (not shown) of a mating connector. The contact portion 21 has a pair of contact pieces 21a. The pair of contact pieces 21a contact the signal terminal of the object to be connected (the signal terminal of the mating connector) so as to sandwich the object from the unit width direction.

The cylindrical portion 22 is a portion formed by bending a plate material into a cylindrical shape. The cylindrical portion 22 has a circular cross-sectional shape perpendicular to the front-rear direction. The ends of the plates are butted against each other at a position above the unit (+Y direction side) of the cylindrical portion 22.
A locking hole 22a is formed in the cylindrical portion 22. By inserting the locking protrusion 36 (see FIG. 7) of the dielectric member 30 into the locking hole 22a, relative movement of the internal terminal 20 in the front-back direction with respect to the dielectric member 30 is restricted. The locking holes 22a are formed at two locations on the upper surface side (+Y direction side) and the lower surface side (-Y direction side, see FIG. 7) of the cylindrical portion 22.

The connecting portion 23 is a portion that connects the cylindrical portion 22 and the crimp portion 24. Specifically, the connecting portion 23 connects the lower surface side (−Y direction side) of the cylindrical portion 22 and the bottom plate portion 24a of the crimp portion 24 in the front-rear direction. The cross-sectional shape (cross-sectional shape perpendicular to the front-rear direction) of the connecting portion 23 is approximately arcuate.

The crimp portion 24 is a portion that is crimp-bonded to the internal conductor 91.
The crimp portion 24 includes a bottom plate portion 24a and a pair of crimp pieces 24b. With the internal conductor 91 of the shielded cable 90A disposed on the inner surface of the bottom plate portion 24a, the pair of crimp pieces 24b are deformed to press the vicinity of their ends to the internal conductor 91. Thereby, the crimp portion 24 is crimp-bonded to the internal conductor 91, and the internal conductor 91 and the internal terminal 20 are electrically connected.
The crimp portion 24 has a substantially uniform cross-sectional structure along the front-rear direction.

The impedance adjustment section 25 is a section connected to the crimp section 24. By providing the impedance adjustment section 25, the capacity of the crimp section 24 increases and the impedance of the crimp section 24 decreases.

The impedance adjustment section 25 extends from the rear end of the bottom plate section 24a of the crimp section 24. The impedance adjustment section 25 has a radial extending section 25a and a front-back extending section 25b.

The radially extending portion 25a is a portion connected to the bottom plate portion 24a of the crimp portion 24 via a curved portion, and is a portion extending radially outward.
Specifically, the radially extending portion 25a has its plate thickness direction directed in the X direction (unit front-rear direction). The radially extending portion 25a has its width direction oriented in the Z direction (unit width direction), and extends radially outward (specifically, toward the lower side of the unit, in the −Y direction). The width dimension (dimension in the unit width direction) of the radially extending portion 25a is preferably 50% or more, and more preferably 80% or more, of the width dimension of the crimp portion 24. The width dimension of the crimping part 24 here means the width dimension in a state where the crimping part 24 is crimped to the internal conductor 91.

The longitudinally extending portion 25b is a portion connected to the radially extending portion 25a via a curved portion, and is a portion extending toward the rear side (−X direction).
Specifically, the longitudinally extending portion 25b has its plate thickness direction oriented in the unit vertical direction (Y direction). The longitudinally extending portion 25b has its width direction oriented in the unit width direction (Z direction) and extends rearward (−X direction). The width of the longitudinally extending portion 25b is preferably 50% or more, and more preferably 80% or more, of the width of the crimp portion 24. In this embodiment, the width dimension of the longitudinally extending portion 25b is approximately the same as the width dimension of the radially extending portion 25a.

The longitudinally extending portion 25b is arranged along the vicinity of the outer surface of the insulation coating 92 of the shielded cable 90A. As shown in FIG. 7, when the internal terminal 20 is attached to the shielded cable 90A, the gap between the longitudinally extending portion 25b and the insulation coating 92 (in this embodiment, the gap in the vertical direction of the unit) is It is preferable that the thickness is smaller than the thickness of the directionally extending portion 25b. Furthermore, when the internal terminal 20 is attached to the shielded cable 90A, it is preferable that the insulating coating 92 be in contact with or close to the radially extending portion 25a of the impedance adjusting portion 25.

The other end portion 25b1 of the longitudinally extending portion 25b is a carrier cutting portion 26. The carrier cutting portion 26 is a portion that is cut last and separated from the carrier when the internal terminal 20 is manufactured by progressive processing.

(Dielectric member 30)
The dielectric member 30 is a member that holds the second internal terminal 20.
As shown in FIG. 4, the dielectric member 30 includes a first member 31 and a second member 32. The dielectric member 30 is configured by combining the first member 31 and the second member 32 in the unit vertical direction (Y direction).

As shown in FIGS. 6 and 7, an accommodation space 33 in which the internal terminal 20 is accommodated is formed inside the dielectric member 30. The cross-sectional shape of the accommodation space 33 changes depending on its position in the front-rear direction.

At a position corresponding to the rear end portion of the crimp portion 24 (a portion adjacent to the impedance adjustment portion 25), the cross-sectional shape of the accommodation space 33 is a shape (specifically, circular) that follows the outer shape of the crimp portion 24. This prevents the rear end portion of the crimp portion 24 of the internal terminal 20 from being displaced in the radial direction with respect to the dielectric member 30. That is, at this position, the accommodation space 33 of one internal terminal 20 and the accommodation space 33 of the other internal terminal 20 are separated, and there is a partition wall between one internal terminal 20 and the other internal terminal 20. 34 (see FIG. 6) intervenes.
Note that the cross-sectional size of the crimp portion 24 in a state of being crimp-bonded to the internal conductor 91 tends to vary. Therefore, the accommodation space 33 is formed at a position corresponding to the rear end of the crimp part 24 so as to be able to accommodate the above-mentioned possible variations with a margin.
However, as a result, a certain degree of gap is created between the crimp portion 24 and the dielectric member 30, and the impedance of the crimp portion 24 or the exposed portion 91e of the internal conductor 91 cannot be sufficiently lowered by the dielectric member 30 alone. .

At a position corresponding to the front side of the rear end of the crimp part 24, the cross-sectional shape of the accommodation space 33 is smaller than that at a position corresponding to the rear end of the crimp part 24 (the part adjacent to the impedance adjustment part 25). The unit is enlarged in the vertical direction (Y direction) (see FIG. 7). Moreover, the accommodation space 33 of one internal terminal 20 and the accommodation space 33 of the other internal terminal 20 are connected (see FIG. 6).

At the position corresponding to the impedance adjustment part 25, the cross-sectional shape of the accommodation space 33 is expanded in the radial direction compared to the position corresponding to the rear end part of the crimp part 24 (the part adjacent to the impedance adjustment part 25). There is. Thereby, the size is such that the impedance adjustment section 25 and a part (front end) of the insulating coating 92 can be arranged. Looking at it from a different perspective, as shown in FIG. 7, the rear surface 30r of the dielectric member 30 has a recess 35 with the front side in the depth direction, and the impedance adjustment part 25 and a part of the insulation coating 92 (front end). It can be said that a recessed portion 35 is formed in which is arranged. As a result, the impedance adjustment section 25 is not in a state of protruding rearward from the dielectric member 30, but is in a state of being surrounded by the dielectric member 30. At this position, the accommodation space 33 of one internal terminal 20 and the accommodation space 33 of the other internal terminal 20 are separated, and a partition wall 34 is provided between one internal terminal 20 and the other internal terminal 20. intervene.

The dielectric member 30 has a locking protrusion 36 . The locking projections 36 are formed on the first member 31 and the second member 32, respectively. The locking protrusion 36 is arranged in the locking hole 22a of the internal terminal 20.

(External terminal 40)
The external terminal 40 is a member connected to the external conductor 93 and housing the dielectric member 30.
The external terminal 40 is manufactured by bending a metal plate.

As shown in FIG. 4, the external terminal 40 includes a main body portion 41, an external conductor connecting portion 42, and a connecting portion 43.

The main body portion 41 includes a first plate portion 41a and a pair of second plate portions 41b.
The first plate portion 41a has a rectangular flat plate shape, and the thickness direction thereof is oriented in the unit vertical direction (Y direction). Each of the pair of second plate parts 41b has a rectangular flat plate shape, and the plate thickness direction is oriented in the unit width direction (Z direction). The pair of second plate portions 41b are connected to the first plate portion 41a via curved portions.

Further, the main body portion 41 includes a third plate portion 41c. The third plate portion 41c connects the upper ends (ends in the +Y direction) of the pair of second plate portions 41b in the unit width direction. The third plate portion 41c has a rectangular flat plate shape, and its thickness direction is oriented in the unit vertical direction (Y direction). The third plate portion 41c is formed by combining a pair of plate portions extending from a pair of second plate portions 41b. The front end of the third plate part 41c is formed on the rear side of the front ends of the first plate part 41a and the pair of second plate parts 41b.

The external conductor connection portion 42 is a portion connected to the external conductor 93 of the shielded cable 90A. As shown in FIGS. 7 and 8, the outer conductor 93 of the shielded cable 90A is folded back near the end of the shielded cable 90A and overlapped on the outside of the outer sheath 94, and the outer conductor A connecting portion 42 makes the connection.

The connecting portion 43 is a portion that connects the main body portion 41 and the external conductor connecting portion 42 in the X direction. The cross-sectional shape of the connecting portion 43 is approximately U-shaped with the +Y direction open.
Note that the terminal unit 14 includes an additional shield member 98 (see FIGS. 3 and 7). The additional shield member 98 is a member extending in the X direction and has a substantially U-shaped cross-sectional shape with an opening in the −Y direction. By combining the connecting portion 43 and the additional shielding member 98, the second internal conductor 91 (and the second insulation coating 92) of the shielded cable 90A are collectively surrounded in the circumferential direction.

(Terminal unit 15)
Next, the terminal unit 15 will be explained using FIGS. 12 to 19.

In each figure, arrow X indicates the front direction of the unit (one side in the axial direction), arrow Y indicates the upward direction of the unit, and arrow Z indicates one side in the width direction of the unit. That is, the terminal unit 15 is arranged with one side in the width direction facing upward of the connector.

The terminal unit 15 is different from the terminal unit 14 in that it is attached to a shielded cable 90B (see FIG. 12) having one internal conductor 91.
As shown in FIG. 12, the terminal unit 15 includes an internal terminal 50, a dielectric member 60, an external terminal 70, and an impedance adjustment member 80.

(internal terminal 50)
FIG. 13 shows an enlarged view of the internal terminal 50.
Internal terminal 50 is a member connected to internal conductor 91 of shielded cable 90B. The internal terminal 50 is manufactured by bending a metal plate into a cylindrical shape. The internal terminal 50 has a structure that is substantially symmetrical in the unit width direction (Z direction).

Note that in the following description, the radial direction means a direction perpendicular to a virtual central axis AX passing through the center of the internal terminal 50 and parallel to the front-rear direction of the unit. The radially outer side means the direction away from the central axis AX in the radial direction.

The internal terminal 50 includes a contact portion 51, a cylindrical portion 52, a connecting portion 53, and a crimp portion 54 in this order from the front side to the rear side. Note that, unlike the internal terminal 20, the internal terminal 50 does not include the impedance adjustment section 25 (see FIG. 5).

The contact portion 51 is a portion that comes into contact with a signal terminal (not shown) of a mating connector. The contact portion 51 has a pair of contact pieces 51a. The pair of contact pieces 51a contact the signal terminal of the object to be connected (the signal terminal of the mating connector) so as to sandwich the object from the unit width direction.

The cylindrical portion 52 is a portion formed by bending a plate material into a cylindrical shape. The cylindrical portion 52 has a circular cross-sectional shape perpendicular to the front-rear direction. The ends of the plates are butted against each other at a position above the unit (+Y direction side) of the cylindrical portion 52.
A locking hole 52a is formed in the cylindrical portion 52. By inserting the locking protrusion 66 (see FIG. 18) of the dielectric member 60 into the locking hole 52a, relative movement of the internal terminal 50 in the front-back direction with respect to the dielectric member 60 is restricted. The locking holes 52a are formed at two locations on the upper surface side (+Y direction side) and the lower surface side (−Y direction side, see FIG. 18) of the cylindrical portion 52.
The intermediate portion of the cylindrical portion 52 has a smaller outer diameter than the front and rear portions of the cylindrical portion 52 . The two locking holes 52a are formed in the middle portion of the cylindrical portion 52.

The connecting portion 53 is a portion that connects the cylindrical portion 52 and the crimp portion 54. Specifically, the connecting portion 53 connects the lower surface side (−Y direction side) of the cylindrical portion 52 and the bottom plate portion 54a of the crimp portion 54 in the front-rear direction. The cross-sectional shape (cross-sectional shape perpendicular to the front-rear direction) of the connecting portion 53 is approximately arcuate.

The crimp portion 54 is a portion that is crimp-bonded to the internal conductor 91 of the shielded cable 90B.
The crimp portion 54 includes a bottom plate portion 54a and a pair of crimp pieces 54b. With the internal conductor 91 of the shielded cable 90B disposed on the inner surface of the bottom plate portion 54a, the pair of crimp pieces 54b are deformed to press the vicinity of their ends to the internal conductor 91. Thereby, the crimp portion 54 is crimp-bonded to the internal conductor 91, and the internal conductor 91 and the internal terminal 50 are electrically connected.
The crimp portion 54 has a substantially uniform cross-sectional structure along the front-rear direction.

(Dielectric member 60)
The dielectric member 60 is a member that holds the internal terminal 50.
As shown in FIG. 12, the dielectric member 60 includes a first member 61 and a second member 62. The dielectric member 60 is configured by combining the first member 61 and the second member 62 in the unit vertical direction (Y direction).

As shown in FIGS. 18 and 19, a space is formed inside the dielectric member 60 in which the internal terminal 50 is accommodated. The cross-sectional shape of the space in which the internal terminal 50 is accommodated is a shape that generally follows the outer shape of the internal terminal 50.

As shown in FIG. 18, the dielectric member 60 has a locking protrusion 66. The locking protrusions 66 are formed on the first member 61 and the second member 62, respectively. The locking protrusion 66 is arranged in the locking hole 52a (see FIG. 13) of the internal terminal 50.

As shown in FIG. 14, an arrangement recess 63 for arranging the impedance adjustment member 80 is formed on the outer surface of the dielectric member 60.
The arrangement recess 63 is formed in the rear portion 60B of the dielectric member 60. By forming the arrangement recess 63, the rear portion 60B of the dielectric member 60 has a smaller cross-sectional shape (cross-sectional shape perpendicular to the front-rear direction) than the intermediate portion 60A, which is a general portion. Specifically, the arrangement recess 63 is formed over the entire circumference of the upper surface, a pair of side surfaces (surfaces facing outward in the unit width direction), and the lower surface of the outer surface of the dielectric member 60. However, in relation to the shape of the impedance adjustment member 80 of this embodiment, the portion of the arrangement recess 63 that corresponds to the lower surface of the dielectric member 60 may be omitted.
In this embodiment, the front portion 60C of the dielectric member 60 also has a smaller cross-sectional shape than the intermediate portion 60A (general portion).

The placement recess 63 has a protruding piece placement portion 63a. The protruding piece placement portion 63a is a portion where a protruding piece 81a1 of an impedance adjustment member 80, which will be described later, is placed, and is a portion enlarged toward the front side relative to other portions of the placement recess 63. The protruding piece arrangement portion 63a is formed on the upper surface side of the dielectric member 60.

The dielectric member 60 has a cylindrical protrusion 64 .
The cylindrical protrusion 64 protrudes rearward from the rear surface 60r of the dielectric member 60 in a cylindrical shape. The cylindrical protrusion 64 is arranged between the lid 82 of the impedance adjustment member 80 and the internal conductor 91 (see FIG. 18). Thereby, it is possible to prevent a short circuit between the impedance adjusting member 80 and the internal conductor 91, and to reduce the impedance at that location.

(Impedance adjustment member 80)
The impedance adjustment member 80 is a member for adjusting the impedance of the crimp portion 54. The impedance adjustment member 80 is made of a conductive member. The impedance adjustment member 80 is formed separately from the internal terminal 50 and the external terminal 70.

As shown in FIG. 14, the impedance adjustment member 80 includes a front-rear extending portion 81 extending in the front-rear direction (X direction) with the plate thickness direction along a plane perpendicular to the front-rear direction (YZ plane); It includes a lid part 82 whose thickness direction is oriented in a direction intersecting a plane (YZ plane) perpendicular to the front-rear direction.

The longitudinally extending portion 81 includes a pair of opposing plate portions 81b that face each other so as to sandwich the internal terminal 50 therebetween, and a connecting plate portion 81a that connects the pair of opposing plate portions 81b to each other. A pair of curved portions 81c are formed by bending the plate material between the pair of opposing plate portions 81b and the connecting plate portion 81a. The curved portion 81c extends in the front-rear direction (X direction).

The lid part 82 has a flat plate part 83 whose thickness direction is oriented in a direction perpendicular to a plane (YZ plane) perpendicular to the front-back direction (that is, the front-back direction), and a connection that connects the flat plate part 83 and the front-back extending part 81. It has curved parts 84a and 84b.
The connecting curved portions 84a and 84b include a pair of first curved portions 84b that connect the flat plate portion 83 and the pair of opposing plate portions 81b, and a second curved portion 84a that connects the flat plate portion 83 and the connecting plate portion 81a. has. The first curved portion 84b extends in the unit vertical direction (Y direction), and the second curved portion 84a extends in the unit width direction (Z direction).

The lid part 82 is formed with a passage part 85 through which the internal conductor 91 passes in the front-rear direction and which is open in one direction perpendicular to the front-rear direction (in the present embodiment, the -Y direction, which is the downward direction of the unit). Ru. As a result, the lid portion 82 has a configuration including a pair of side plate portions 82b arranged to sandwich the internal conductor 91, and an upper plate portion 82a that connects the pair of side plate portions 82b to each other. The passage portion 85 is formed between the pair of side plate portions 82b. The first curved portion 84b belongs to the side plate portion 82b, and the second curved portion 84a belongs to the upper plate portion 82a.

A pair of through holes 80h are formed between the pair of first curved portions 84b and second curved portions 84a. Thereby, manufacturing of the impedance adjustment member 80 is facilitated.

A protruding piece 81a1 arranged in the protruding piece arranging part 63a of the dielectric member 60 is formed in the longitudinally extending portion 81. This prevents the impedance adjusting member 80 from being placed in the wrong direction with respect to the dielectric member 60 (in this embodiment, from the top of the unit). In this embodiment, the cross-sectional shape (cross-sectional shape perpendicular to the front-rear direction) of the rear portion 60B of the dielectric member 60 is approximately square.

(External terminal 70)
FIG. 15 is a perspective view of the external terminal 70.
The external terminal 70 is a member that is connected to the external conductor 93 (see FIG. 12) of the shielded cable 90B and houses the internal terminal 50, the dielectric member 60, and the impedance adjustment member 80. The external terminal 70 is manufactured by bending a metal plate.

As shown in FIG. 15, the external terminal 70 includes a main body portion 71 and a first crimp portion 72.

The main body portion 71 includes a first plate portion 71a and a pair of second plate portions 71b. The first plate portion 71a has a rectangular flat plate shape, and its thickness direction faces the unit vertical direction (Y direction). Each of the pair of second plate parts 71b has a rectangular flat plate shape, and the plate thickness direction is oriented in the unit width direction (Z direction). The pair of second plate portions 71b are connected to the first plate portion 71a via curved portions.

Further, the main body portion 71 includes a third plate portion 71c. The third plate portion 71c connects the upper ends (ends in the +Y direction) of the pair of second plate portions 71b in the unit width direction. The third plate portion 71c has a rectangular flat plate shape, and its thickness direction is oriented in the unit vertical direction (Y direction). The third plate portion 71c is formed by combining a pair of plate portions extending from a pair of second plate portions 71b. The front end of the third plate part 71c is formed on the rear side of the front ends of the first plate part 71a and the pair of second plate parts 71b.

The first plate portion 71a, the pair of second plate portions 71b, and the third plate portion 71c form cylindrical portions 71a, 71b, and 71c that accommodate the internal terminals 50 and the dielectric member 60 therein. The main body portion 71 includes a rear surface portion 71d in addition to the cylindrical portions 71a, 71b, and 71c.
The rear surface portion 71d is formed to partially close the internal space of the main body portion 71 from the rear side. The rear surface portion 71d also functions to connect the cylindrical portions 71a, 71b, 71c and the first crimp portion 72.

As shown in FIG. 15, since the rear surface portion 71d only partially closes the internal space of the main body portion 71, an opening 71e is formed in the main body portion 71 to open the internal space to the rear side. . Specifically, the rear surface part 71d closes the internal space of the main body part 71 at the lower part, and the opening 71e is formed at the upper part of the main body part 71.

The first crimp portion 72 is a portion connected to the outer conductor 93 of the shielded cable 90B. Specifically, the first crimp portion 72 is connected to the outer conductor 93 of the shielded cable 90B so as to wrap around it from the outer circumferential side. Hereinafter, the first crimp portion 72 may be referred to as the connection portion 72.

Further, the external terminal 70 has a second crimp portion 73 fixed to the outside of the outer sheath 94 (see FIG. 12) of the shielded cable 90B. The second crimp portion 73 is formed on the rear side of the first crimp portion 72 .

As shown in FIG. 18, a conductive sleeve 19 is inserted between the insulation coating 92 and the outer conductor 93 of the shielded cable 90B. Sleeve 19 is cylindrical. The front end of the sleeve 19 is formed with an enlarged diameter portion 19a that is enlarged radially outward. By forming the enlarged diameter portion 19a, the insulation coating 92 and the inner conductor 91 of the shielded cable 90B are prevented from moving rearward with respect to the outer conductor 93 and the outer coating 94. It is preferable that the front end of the sleeve 19 be in contact with the impedance adjustment member 80 (lid 82 in this embodiment).

As shown in FIGS. 15 and 19, the main body portion 71 has a plurality of protrusions 74 for contacting the impedance adjustment member 80. As shown in FIGS.
The protruding portion 74 is formed to protrude toward the internal space of the cylindrical portions 71a, 71b, and 71c. The protruding portion 74 is formed on each of the pair of second plate portions 71b and third plate portions 71c. Specifically, two protrusions 74 are formed on each of the pair of second plate parts 71b, and one protrusion part 74 is formed on the third plate part 71c. A plurality of (five) protrusions 74 are formed at the same position in the front-rear direction. The protruding part 74 formed on the second plate part 71b contacts the opposing plate part 81b of the longitudinally extending part 81 of the impedance adjustment member 80, and the protruding part 74 formed on the third plate part 71c The connecting plate portion 81a of the longitudinally extending portion 81 of the impedance adjusting member 80 is contacted. The protrusion 74 has a dome shape.

<Effect>
Next, among the effects of this embodiment, those related to the configuration of the terminal unit 14 will be described.

In this embodiment, as shown in FIG. 3, the terminal unit 14 is attached to a shielded cable 90A. As shown in FIGS. 6 to 8, the shielded cable 90A has a second inner conductor 91 and an outer conductor 93 that shields the second inner conductor 91.
As shown in FIG. 4, the terminal unit 14 includes a second internal terminal 20 connected to the second internal conductor 91, a dielectric member 30 holding the second internal terminal 20, and an external terminal 40 connected to the external conductor 93. and. External terminal 40 accommodates dielectric member 30 .
As shown in FIG. 5, the internal terminal 20 includes a contact portion 21 that contacts a connection target (signal terminal of a mating connector) and a crimp portion 24 that is crimped to the internal conductor 91. The contact portion 21 is provided on the front side, and the crimp portion 24 is provided on the rear side.

Here, the internal terminal 20 further includes an impedance adjustment section 25 connected to the crimp section 24. Therefore, the capacity of the crimp section 24 can be increased and the impedance of the crimp section 24 can be reduced.
Furthermore, the impedance adjustment section 25 protrudes rearward with respect to the crimp section 24 . Therefore, a portion 91e of the internal conductor 91 of the shielded cable 90A that is rearward of the position where the crimp portion 24 is crimped and is exposed from the insulation coating 92 (hereinafter referred to as the exposed portion 91e of the internal conductor. FIG. 7 , see FIG. 9), it is possible to prevent the impedance from increasing excessively.

Moreover, in this embodiment, as shown in FIG. 9, the impedance adjustment section 25 has a front-back direction extending section 25b extending in the front-back direction. In addition, in this embodiment, the radial extending part 25a is formed between the crimp part 24 and the longitudinally extending part 25b, but this radially extending part 25a may be omitted. Therefore, the radially extending portion 25a can be arranged along the internal conductor 91 or the insulating coating 92 covering the internal conductor 91. As a result, the length of the impedance adjustment section 25 can be ensured, so that impedance matching can be further strengthened.

Further, in this embodiment, the impedance adjustment section 25 further includes a radially extending section 25a that extends in the radial direction. The radial extending portion 25a is located between the crimp portion 24 and the front-rear extending portion 25b. Therefore, the crimp portion 24 can be brought close to the insulating sheath 92, and the longitudinally extending portion 25b can be arranged along the insulating sheath 92. As a result, impedance matching can be further strengthened.

Further, in this embodiment, the impedance adjustment section 25 is formed integrally with the crimp section 24. Therefore, manufacturing of the internal terminal 20 is easier than in a case where the impedance adjustment section 25 is formed separately from the crimp section 24.

Further, in this embodiment, the impedance adjustment section 25 extends from the rear end of the bottom plate section 24a of the crimp section 24. For this reason, manufacturing of the internal terminal 20 is easier compared to a mode in which the impedance adjustment portion 25 extends from a portion other than the rear end portion of the bottom plate portion 24a.

Furthermore, in this embodiment, as shown in FIG. 9, the impedance adjustment section 25 does not have a structure that surrounds the internal conductor 91 in the circumferential direction. Therefore, compared to a structure in which the impedance adjustment section 25 surrounds the internal conductor 91 in the circumferential direction, it is possible to prevent the impedance from decreasing excessively.

Moreover, in this embodiment, the terminal unit 14 has two internal terminals 20. In addition, none of the impedance adjustment parts 25 that the second internal terminals 20 have are arranged between the second internal conductors 91 (see FIG. 6).
If any of the impedance adjustment parts 25 of the second internal terminals 20 are placed between the second internal conductors 91, there is a risk that impedance matching will be adversely affected, but this embodiment can prevent this. can.

Further, in this embodiment, the dielectric member 30 has a partition wall 34 (see FIG. 6) located between the impedance adjustment parts 25 that the second internal terminals 20 each have. For this reason, impedance can be lowered compared to an embodiment that does not have such a partition wall 34.

Further, in this embodiment, as shown in FIG. 5, the end portion 25b1 of the impedance adjustment portion 25 on the opposite side to the one connected to the crimp portion 24 is the carrier cutting portion 26. Therefore, the internal terminal 20 having the impedance adjustment portion 25 can be manufactured by adjusting the position at which the internal terminal 20 is cut from the carrier in the manufacturing process. Therefore, manufacturing of the internal terminal 20 is easy.

Further, in this embodiment, as shown in FIGS. 6 and 7, the dielectric member 30 surrounds the impedance adjustment section 25 in the circumferential direction. Therefore, the impedance at the exposed portion 91e of the internal conductor 91 can be lowered compared to a mode in which the dielectric member 30 does not surround the impedance adjustment portion 25 in the circumferential direction.

Next, among the effects of this embodiment, those related to the configuration of the terminal unit 15 will be described.

In this embodiment, as shown in FIG. 12, the terminal unit 15 is attached to a shielded cable 90B. Shielded cable 90B has an inner conductor 91 and an outer conductor 93 that shields inner conductor 91.
The terminal unit 15 includes an internal terminal 50 connected to the internal conductor 91 , a dielectric member 60 holding the internal terminal 50 , and an external terminal 70 connected to the external conductor 93 . External terminal 70 accommodates internal terminal 50. The internal terminal 50 includes a crimping portion 54 that is crimped onto the internal conductor 91 .

Here, the terminal unit 15 further includes a conductive impedance adjustment member 80 formed separately from the internal terminal 50 and the external terminal 70. The impedance adjustment member 80 has an adjustment section 80 located between the external terminal 70 and the internal terminal 50 and at a position where the impedance of the crimp section 54 can be adjusted (see FIG. 18). Note that in this embodiment, the entire impedance adjustment member 80 serves as the adjustment section 80.
Therefore, an excessive increase in impedance at the crimp portion 54 is suppressed, and the terminal unit 15 can be provided with enhanced impedance matching.

In this embodiment, as shown in FIG. 15, the external terminal 70 includes a main body part 71 that accommodates the internal terminal 50, and a connecting part 72 that is provided on the rear side of the main body part 71 and connects to the external conductor 93. and has. Here, the main body part 71 is formed with an opening 71e through which the internal space of the main body part 71 is opened to the rear side. Therefore, the external terminal 70 including the main body 71 is easier to manufacture than the case where the main body 71 is not provided with such an opening 71e.

Furthermore, as shown in FIG. 14, the adjustment section 80 has a lid section 82. The lid portion 82 is a portion whose thickness direction is oriented in a direction intersecting a plane perpendicular to the front-rear direction, and is arranged so as to narrow the opening 71e (see FIG. 17). Therefore, the opening 71e of the main body portion 71 is narrowed, and crosstalk between the internal terminal 50 and other electronic components can be prevented.

In addition, in this embodiment, as shown in FIG. 14, the lid part 82 includes a pair of side plates 82b arranged to sandwich the internal conductor 91, and an upper plate part 82a that connects the pair of side plates 82b to each other. , has. A passage portion 85 through which the internal conductor 91 passes in the front-rear direction is formed between the pair of side plate portions 82b, and the passage portion 85 is open in one direction perpendicular to the front-rear direction.
Therefore, when assembling the terminal unit 15, the impedance adjusting member 80 can be placed from one direction (in the present embodiment, from above the unit) perpendicular to the front-back direction with respect to the internal conductor 91. Therefore, assembly of the terminal unit 15 becomes easy.

Further, in this embodiment, the adjustment section 80 has a front-back direction extending section 81. The front-rear direction extending portion 81 extends in the front-rear direction (X direction) with the plate thickness direction oriented along a plane (YZ plane) perpendicular to the front-rear direction.
Therefore, impedance matching can be strengthened compared to a mode in which the adjustment section 80 does not have the longitudinally extending section 81.

Further, in this embodiment, as shown in FIG. 14, the front-rear direction extending portion 81 includes a pair of opposing plate portions 81b that face each other so as to sandwich the internal terminal 50, and a connection that connects the pair of opposing plate portions 81b to each other. It has a plate part 81a.
Therefore, impedance matching can be strengthened, for example, compared to a mode in which the longitudinally extending portion 81 is not formed so as to sandwich the internal terminal 50 .

Moreover, in this embodiment, as shown in FIG. 19, the three plate parts, the pair of opposing plate parts 81b and the connecting plate part 81a, are in contact with the external terminal 70, respectively. Therefore, generation of resonance noise caused by these plate portions 81a, 81b and the external terminal 70 can be suppressed.

Further, in this embodiment, the contact between each of the three plate portions 81a and 81b (a pair of opposing plate portions 81b and the connecting plate portion 81a) and the external terminal 70 is limited to at least one of the longitudinally extending portion 81 or the external terminal 70. This is realized via a protrusion 74 formed on one side.
For this reason, a stable contact state can be maintained compared to a mode in which the flat parts are brought into contact with each other. Moreover, in comparison with a mode in which they are in contact via a cantilever spring such as a spring piece, parasitic inductance in the impedance adjustment member 80 or the external terminal 70 can be reduced.

Further, in this embodiment, as shown in FIG. 19, contact between each of the three plate portions 81a and 81b and the external terminal 70 is realized via a protrusion 74 formed on the external terminal 70.
For this reason, compared to a mode in which the protruding part 74 is formed in the longitudinally extending part 81 of the impedance adjustment member 80, it is easier to form the protruding part 74 larger. This is because it is easier to form the external terminal 70 larger than the longitudinally extending portion 81. As a result, contact between the external terminal 70 and the impedance adjustment member 80 can be stabilized.

Further, in this embodiment, as shown in FIG. 14, the impedance adjustment member 80 is arranged on the outer surface of the dielectric member 60. A placement recess 63 in which the impedance adjustment member 80 is placed is formed on the outer surface of the dielectric member 60.
Therefore, the dielectric member 60 and the impedance adjustment member 80 can be efficiently accommodated in the external terminal 70.

Modifications 1, 2, and 3 of the terminal unit 15 will be described below.

<Modification 1: Terminal unit 115>
Next, the terminal unit 115 according to Modification 1 will be described using FIGS. 20 to 26.
Note that parts and portions in the drawings that are denoted by the same reference numerals as in the above embodiment have basically the same configuration as in the above embodiment.

As shown in FIG. 20, the terminal unit 115 according to the first modification includes an internal terminal 150, a dielectric member 160, an external terminal 170, an impedance adjustment member 180, and a sleeve 19.

(internal terminal 150)
Internal terminal 150 connects to internal conductor 91 of shielded cable 90B.

(Dielectric member 160)
The dielectric member 160 holds the internal terminal 150 and is accommodated in the main body portion 71 of the external terminal 170.

As shown in FIG. 22, a placement recess 63 in which the impedance adjustment member 180 is placed is formed on the outer surface of the dielectric member 160.
The arrangement recess 63 is formed in the rear portion 60B of the dielectric member 160. As a result, the rear portion 60B of the dielectric member 160 has a smaller cross-sectional shape (cross-sectional shape perpendicular to the front-rear direction) than the intermediate portion 60A, which is a general portion. Specifically, the arrangement recess 63 is formed over the entire circumference of the upper surface, a pair of side surfaces (surfaces facing outward in the width direction), and the lower surface of the outer surface of the dielectric member 160. However, in relation to the shape of the impedance adjustment member 180 of this embodiment, the portion of the arrangement recess 63 that corresponds to the lower surface of the dielectric member 160 may be omitted.

An enlarged recess 65 is formed on the outer surface of the dielectric member 160, in which the protruding piece 81a1 of the impedance adjusting member 180 is arranged. The enlarged recess 65 is connected to the arrangement recess 63. The enlarged recess 65 is formed in the intermediate portion 60A of the dielectric member 160. The enlarged recess 65 is formed on the upper surface of the dielectric member 160.

The enlarged recess 65 has a wide portion 65a and a narrow portion 65b. The width dimension of the wide portion 65a is larger than that of the narrow portion 65b. The narrow portion 65b connects the wide portion 65a and the placement recess 63.

The narrow portion 65b of the enlarged recess 65 is located on the same plane as the arrangement recess 63. The wide portion 65a of the enlarged recess 65 is located above the arrangement recess 63. A step is formed at the boundary between the wide portion 65a and the narrow portion 65b of the enlarged recess 65.
Based on the wide portion 65a of the enlarged recess 65, the narrow portion 65b of the enlarged recess 65 and the arrangement recess 63 are recessed downward. This depression functions as avoidance recesses 63 and 65b that allow deformation of the elastic contact portion 87 of the impedance adjustment member 180, which will be described later.

Dielectric member 160 has a cylindrical protrusion 64 .
The cylindrical protrusion 64 has a cylindrical shape (specifically, a cylindrical shape), and protrudes rearward from the rear surface 60r of the dielectric member 160. The cylindrical protrusion 64 surrounds the inner conductor 91 . Thereby, it is possible to prevent a short circuit between the internal conductor 91 and another member (in this embodiment, the impedance adjustment member 180), and to reduce the impedance at the relevant location.

As shown in FIG. 26, a portion 64a on the distal side of the cylindrical protrusion 64 is disposed within the sleeve 19. As shown in FIG. A portion of the cylindrical protruding portion 64 disposed within the sleeve 19 is referred to as a protruding portion 64a.
The front-to-back dimension of the protruding portion 64a is preferably 1/3 or more, more preferably 1/2 or more of the front-to-back dimension of the cylindrical protrusion 64. Further, the front-to-back dimension of the protruding portion 64a is, for example, 0.2 mm or more.

(Impedance adjustment member 180)
As shown in FIG. 22, the impedance adjustment member 180 includes a front-rear extending portion 81 extending in the front-rear direction (X direction) with the plate thickness direction along a plane (YZ plane) perpendicular to the front-rear direction; It includes a lid portion 82 whose thickness direction is oriented in a direction intersecting a plane (YZ plane) perpendicular to the front-rear direction.

The longitudinally extending portion 81 includes a pair of opposing plate portions 81b that face each other so as to sandwich the internal terminal 150 therebetween, and a connecting plate portion 81a that connects the pair of opposing plate portions 81b to each other. A pair of curved portions 81c are formed by bending the plate material between the pair of opposing plate portions 81b and the connecting plate portion 81a. The curved portion 81c extends in the front-rear direction (X direction).

The lid portion 82 includes flat plate portions 83b, 83b whose thickness direction is oriented in the front-rear direction, and connecting curved portions 84b, 84b that connect the flat plate portions 83b, 83b and the front-rear extending portion 81.
The connecting curved portions 84b, 84b have a pair of first curved portions 84b, 84b that connect the flat plate portions 83b, 83b and the pair of opposing plate portions 81b. The first curved portion 84b extends in the vertical direction (Y direction).
The flat plate portions 83b, 83b have a pair of separation portions 83b, 83b separated from each other. Each of the pair of separation parts 83b, 83b is connected to each of the pair of first curved parts 84b, 84b.

In other words, the lid part 82 has a pair of side plate parts 82b arranged so as to sandwich the internal conductor 91 therebetween. The lid portion 82 does not have a portion (upper plate portion) that connects the pair of side plate portions 82b to each other. Each side plate portion 82b includes a first curved portion 84b and a separating portion 83b.
As a result, the internal conductor 91 and the cylindrical protrusion 64 pass through the lid part 82 in the front-rear direction, and the lid part 82 is opened in one direction perpendicular to the front-rear direction (in the present embodiment, the -Y direction, which is the downward direction). A passage portion 85 is formed. The passage portion 85 is a space formed between the pair of side plate portions 82b.

At the upper part of the lid part 82, the width dimension of the separating part 83b is large, and at the lower part of the lid part 82, the width dimension of the separating part 83b is small. Therefore, at the top of the lid 82, the width of the space between the pair of side plates 82b is narrow, and at the bottom of the lid 82, the width of the space between the pair of side plates 82b is wide.

A protruding piece 81 a 1 arranged in the enlarged recess 65 of the dielectric member 160 is formed on the longitudinally extending portion 81 . This prevents the impedance adjusting member 180 from being placed in the wrong direction with respect to the dielectric member 160 (in this embodiment, from the top of the unit).

The distal end of the protruding piece 81a1 has a larger width than the base end of the protruding piece 81a1. That is, the shape of the protruding piece 81a1 corresponds to the shape of the enlarged recess 65 of the dielectric member 160. Thereby, the impedance adjustment member 180 and the dielectric member 160 are locked to each other in the front-rear direction (axial direction).

The impedance adjustment member 180 has a biasing portion 86 that biases the sleeve 19 toward the impedance adjustment member 180 .
The biasing portion 86 is formed at the rear end of the impedance adjustment member 180. The biasing portion 86 has a curved portion 86a formed at the rear end of the connecting plate portion 81a and extending in the width direction, and a pair of biasing pieces 86b extending from the curved portion 86a. Each of the pair of biasing pieces 86b has its plate thickness direction oriented in the front-rear direction. The pair of biasing pieces 86b extend outward in the width direction and diagonally downward from the curved portion 86a. Thereby, the pair of biasing pieces 86b extend along the outer peripheral surface of the sleeve 19. The sleeve 19 is sandwiched between the pair of biasing portions 86 in the width direction. At this time, the pair of biasing pieces 86b are in an elastically deformed state.
Further, as shown in FIG. 23, the enlarged diameter portion 19a of the sleeve 19 is sandwiched between the pair of biasing pieces 86b and the pair of side plate portions 82b in the front-rear direction. In other words, the pair of biasing pieces 86b of the biasing portion 86 bias the enlarged diameter portion 19a of the sleeve 19 toward the lid portion 82 of the impedance adjustment member 180. Thereby, the impedance adjustment member 180 and the sleeve 19 are locked to each other in the front-rear direction (axial direction). In other words, the biasing portion 86 restricts the sleeve 19 from moving rearward with respect to the dielectric member 160. Hereinafter, the biasing section 86 may be referred to as the regulating section 86.

The biasing portion 86 is a portion whose thickness direction is oriented in a direction intersecting a plane perpendicular to the front-rear direction, and is disposed so as to narrow the opening on the rear side of the main body portion 71. Therefore, the biasing section 86 can also be called the lid section 86.

The impedance adjustment member 180 has an elastic contact portion 87 that elastically contacts the protruding portion 74 of the external terminal 170 .
Specifically, a through hole is formed in the impedance adjustment member 180, and the elastic contact portion 87 is formed so as to divide this through hole. Thereby, the elastic contact portion 87 becomes a double-sided spring. The elastic contact portion 87 extends in the front-rear direction. The elastic contact portion 87 is formed on the connecting plate portion 81a. The elastic contact portion 87 is located on the same plane as the plate portion (connecting plate portion 81a) in which the through hole is formed. In other words, the elastic contact portion 87 maintains a flat plate surface of the plate portion in which the through hole is formed. The elastic contact portions 87 are formed at positions corresponding to the avoidance recesses 63 and 65b of the dielectric member 160. This allows the elastic contact portion 87 to deform toward the dielectric member 160 side.

(External terminal 170)
External terminal 170 connects to external conductor 93 of shielded cable 90B. Further, the external terminal 170 accommodates the internal terminal 150, the dielectric member 160, and the impedance adjustment member 180. The external terminal 170 is manufactured by bending a metal plate.

The external terminal 170 includes a main body portion 71 .
As shown in FIG. 20, the main body portion 71 includes a first plate portion 71a and a pair of second plate portions 71b. The first plate portion 71a has a rectangular flat plate shape, and its thickness direction faces the unit vertical direction (Y direction). Each of the pair of second plate parts 71b has a rectangular flat plate shape, and the plate thickness direction is oriented in the unit width direction (Z direction). The pair of second plate portions 71b are connected to the first plate portion 71a via curved portions.

Further, the main body portion 71 includes a third plate portion 71c. The third plate portion 71c connects the upper ends (ends in the +Y direction) of the pair of second plate portions 71b in the unit width direction. The third plate portion 71c has a rectangular flat plate shape, and its thickness direction is oriented in the unit vertical direction (Y direction). The third plate portion 71c is formed by combining a pair of plate portions extending from a pair of second plate portions 71b.

The front end of the third plate part 71c is formed on the rear side of the front ends of the first plate part 71a and the pair of second plate parts 71b.

Furthermore, the external terminal 170 includes a first crimp portion 72 .
The first crimping portion 72 crimps the outer conductor 93 of the shielded cable 90B from the outside.

Furthermore, the external terminal 170 has a second crimp portion 73 .
The second crimping portion 73 is crimped from the outside to the outer sheath 94 of the shielded cable 90B. The second crimp portion 73 is formed on the rear side of the first crimp portion 72 . The second crimping portion 73 has a larger diameter than the first crimping portion 72 to which the object is crimped.

As shown in FIG. 24, the main body portion 71 has a plurality of protrusions 74 that come into contact with the impedance adjustment member 180.
The protruding portion 74 has a shape that protrudes toward the inside of the main body portion 71, and specifically has a dome shape.
The protruding portion 74 is formed on each of the pair of second plate portions 71b and third plate portions 71c. Specifically, two protrusions 74 are formed on each of the pair of second plate portions 71b and third plate portions 71c. These two protrusions 74 are lined up in the front-rear direction. The protruding portion 74 formed on the second plate portion 71b contacts the opposing plate portion 81b of the front-rear extending portion 81 of the impedance adjustment member 180, and the protruding portion 74 formed on the third plate portion 71c The connecting plate portion 81a of the longitudinally extending portion 81 of the impedance adjusting member 180 is contacted. The protruding portion 74 formed on the third plate portion 71c contacts the elastic contact portion 87 formed on the connecting plate portion 81a.

(Sleeve 19)
As shown in FIG. 25, the sleeve 19 is a drawn product.

Sleeve 19 is made of a conductive member. Sleeve 19 is cylindrical. Sleeve 19 is inserted between insulation coating 92 and outer conductor 93 of shielded cable 90B. Thereby, the sleeve 19 is placed outside the insulation coating 92 and functions to maintain the shape of the insulation coating 92.

The sleeve 19 has an enlarged diameter portion 19a formed at the front end thereof. The outer diameter of the enlarged diameter portion 19a is larger than that of the other portions. The enlarged diameter portion 19a is sandwiched between the lid portion 82 and the biasing portion 86 of the impedance adjustment member 180 in the front-rear direction (see FIG. 23). Thereby, the sleeve 19 comes into pressure contact with the impedance adjustment member 180.

The sleeve 19 has a reduced diameter portion 19b formed at the rear end of the sleeve 19. In the reduced diameter portion 19b, the outer diameter is reduced toward the rear side. This facilitates the operation of inserting the sleeve 19 between the insulation coating 92 and the outer conductor 93 of the shielded cable 90B.

<Effect>
The effects of Modification 1 will be explained.

In modification 1, the terminal unit 115 includes an internal terminal 150 connected to the internal conductor 91, a dielectric member 160 holding the internal terminal 150, and an external terminal 170 connected to the external conductor 93. External terminal 170 accommodates internal terminal 150. The internal terminal 150 includes a crimp portion 54 that is crimped to the internal conductor 91 .

Here, the terminal unit 115 further includes a conductive impedance adjustment member 180 formed separately from the internal terminal 150 and the external terminal 170. The impedance adjustment member 180 has an adjustment part 180 located between the external terminal 170 and the internal terminal 150 and at a position where the impedance of the crimp part 54 can be adjusted. Note that in Modification 1, the entire impedance adjustment member 180 serves as the adjustment section 180.
Therefore, an excessive increase in impedance at the crimp portion 54 is suppressed, and the terminal unit 115 can have enhanced impedance matching.

Furthermore, in the first modification, the terminal unit 115 includes a conductive sleeve 19 disposed outside the insulating sheath 92 that covers the internal conductor 91. Therefore, changes in the cross-sectional shape of the insulating coating 92 covering the internal conductor 91 are suppressed, and as a result, the impedance is kept constant.
That is, since the external terminal 170 is crimped onto the shielded cable 90B, there is a risk that the shielded cable 90B may be deformed into an oval shape or the like due to this crimping. The sleeve 19 suppresses this.

Further, in Modification 1, the sleeve 19 and the impedance adjustment member 180 are in contact with each other, as in the above embodiment. Therefore, resonance, which causes noise, is suppressed.

In addition, although the modification 1 has other effects due to the same configuration as the above-described embodiment, the explanation thereof will be omitted. Hereinafter, the effects of a configuration different from that of the above embodiment will be explained.

In Modification 1, the contact between the sleeve 19 and the impedance adjustment member 180 is press contact. Therefore, it is possible to prevent the sleeve 19 and the impedance adjustment member 180 from coming out of contact due to manufacturing tolerances of the sleeve 19 or vibrations during use.

Furthermore, in the first modification, the impedance adjustment member 180 includes a biasing portion 86 that biases the sleeve 19 toward the impedance adjustment member 180 . Therefore, the impedance adjusting member 180 and the sleeve 19 can be brought into pressure contact without increasing the number of parts.

Furthermore, in Modification 1, the lid portion 82 has a side plate portion 82b formed in a cantilever shape. Therefore, the lid portion 82 can be formed by bending instead of drawing, and as a result, manufacturing costs can be reduced.
Further, as shown in FIG. 23, the sleeve 19 contacts the cantilever-shaped side plate portion 82b. Therefore, resonance, which causes noise, is suppressed.

Furthermore, in Modification 1, as shown in FIG. 26, the dielectric member 160 has a protruding portion 64a that is disposed within the sleeve 19. Therefore, an increase in impedance at the portion of the internal conductor 91 exposed from the insulation coating 92 can be suppressed.
Specifically, it is difficult to make the length of the portion of the internal conductor 91 exposed from the insulation coating 92 constant. If the exposed portion is long, the air layer formed between the sleeve 19 and the internal conductor 91 will also be long, and the impedance will increase in that portion.
Therefore, in modification example 1, a portion of the dielectric member 160 (the protruding portion 64a) is disposed within the sleeve 19, so that it is possible to suppress the formation of a large air layer between the sleeve 19 and the internal conductor 91. . As a result, an increase in impedance at the portion of the internal conductor 91 exposed from the insulation coating 92 can be suppressed.
Further, the protruding portion 64a is formed in a cylindrical shape so as to surround the internal conductor 91. Therefore, the effect of suppressing an increase in impedance can be enhanced.

Furthermore, in Modification 1, as shown in FIG. 22, the impedance adjustment member 180 has an elastic contact portion 87 that elastically contacts the protrusion 74 formed on the external terminal 170. Therefore, the ease of assembling the external terminal 170 having the protrusion 74 formed therein is improved. That is, the work of inserting the dielectric member 160 with the impedance adjustment member 180 attached into the main body portion 71 of the external terminal 170 becomes easier.
Further, the elastic contact portion 87 is a double-sided spring formed so as to divide the through hole of the impedance adjustment member 180. Therefore, the inductance parasitic to the impedance adjustment member 180 or the external terminal 170 can be reduced compared to the case where the elastic contact portion 87 is a cantilever spring.

Further, in the first modification, as shown in FIG. 23, the sleeve 19 and the impedance adjustment member 180 are locked to each other in the front-back direction, and the impedance adjustment member 180 and the dielectric member 160 are locked to each other in the front-back direction. It is locked. Therefore, it is possible to prevent the sleeve 19, the impedance adjustment member 180, and the dielectric member 160 from being separated by external force (particularly the force that pulls the shielded cable 90B during use).

<Modification 2: Terminal unit 215>
Next, the terminal unit 215 according to Modification 2 will be described using FIGS. 27 to 30.
Note that parts or portions having the same configuration as those of the above-described embodiment or modified example are designated by the same reference numerals in the drawings, and the description thereof will be omitted.

As shown in FIG. 27, the terminal unit 215 includes an internal terminal 250, a dielectric member 260, an external terminal 270, an impedance adjustment member 280, and a sleeve 19.

(Assembly procedure)
The procedure for assembling the terminal unit 215 is generally as follows.
(1) The internal terminal 250 is crimped onto the internal conductor 91 of the shielded cable 90B, the dielectric member 260 is assembled, and the internal terminal 250 is accommodated in the dielectric member 260.
(2) Attach the impedance adjustment member 280 to the dielectric member 260.
(3) Insert the dielectric member 260 into the main body 71 of the external terminal 270 from the rear side of the main body 71 . At this time, the dielectric member 260 is inserted into the main body portion 71 of the external terminal 270 from the rear and upper diagonally rearward direction.
(4) The first crimp portion 72 of the external terminal 270 is crimp-bonded to the outer conductor 93 of the shielded cable 90B, and the second crimp portion 73 is crimp-bonded to the outer sheath 94 of the shielded cable 90B.
Note that the main difference from the above embodiment and modification 1 is that the direction in which the dielectric member 260 is inserted into the main body portion 71 of the external terminal 270 is not from the front but from the rear.

(Dielectric member 260)
In modification 1 (FIG. 22), the wide portion 65a of the enlarged recess 65 is located above the placement recess 63, whereas in modification 2 (FIG. 29), the wide portion 65a is located at the same position as the placement recess 63. Located on a plane. Therefore, in the second modification, the entire enlarged recess 65 is located on the same plane as the arrangement recess 63. This is related to the fact that the dielectric member 260 does not have an elastic contact portion (see elastic contact portion 87 in FIG. 22).

As shown in FIG. 29, the cylindrical protrusion 64 of the dielectric member 260 has a smaller protrusion amount than the cylindrical protrusion 64 of Modification 1 (see FIG. 22). For this reason, although not shown in the drawings, although a part of the distal end side of the cylindrical protrusion 64 (the protruding part 64a) is disposed within the sleeve 19, the longitudinal dimension of the protruding part 64a is very small (approximately 50 μm).

A groove 69 corresponding to the protrusion 74 of the external terminal 270 is formed in the dielectric member 260 . This improves workability in the process of inserting the dielectric member 260 into the main body portion 71 of the external terminal 270 from the rear side. The groove 69 is a groove extending in the front-rear direction. The groove 69 is formed on the upper surface and the pair of side surfaces of the intermediate portion 60A (general portion) of the dielectric member 260, respectively.

(Impedance adjustment member 280)
The impedance adjustment member 280 does not have an elastic contact portion (see elastic contact portion 87 in FIG. 22) that elastically contacts the protruding portion 74 of the external terminal 270.

The impedance adjustment member 280 has a projection 81b1 that projects toward the main body 71 of the external terminal 270. The protruding portion 81b1 is formed at the lower end of each of the pair of opposing plate portions 81b. Thereby, a stable contact state between the impedance adjustment member 280 and the external terminal 270 can be obtained. Two protrusions 81b1 are formed on each opposing plate portion 81b. The shape of the protrusion 81b1 is a downwardly convex arc.

(External terminal 270)
As shown in FIG. 27, the main body portion 71 of the external terminal 270 has a first plate portion 71a, a pair of second plate portions 71b, and a third plate portion 71c, and as shown in FIG. The rear end 71c is formed forward of the rear ends of the pair of second plate parts 71b. This makes it possible to insert the dielectric member 260 into the main body portion 71 from the rear.
Note that the rear portion of the third plate portion 71c with respect to the rear end is shielded by a portion of the impedance adjustment member 280 (the connecting plate portion 81a and the curved portion 86a of the biasing portion 86).

As shown in FIG. 30, the main body portion 71 has a plurality of protrusions 74 that contact the impedance adjustment member 280.
The protruding portion 74 has a shape that protrudes toward the inside of the main body portion 71, and specifically has a dome shape. The protruding portion 74 is formed on each of the pair of second plate portions 71b and third plate portions 71c. Specifically, one protrusion 74 is formed in each of the pair of second plate portions 71b and third plate portions 71c.

Further, the main body portion 71 includes an elastic support portion 75 that elastically supports the protrusion portion 74 . The elastic support portions 75 are provided corresponding to each of the plurality of protrusions 74 . The elastic support portion 75 is a double-sided spring. Specifically, a through hole is formed in the plate portion constituting the main body portion 71, and the elastic support portion 75 and the protruding portion 74 are formed to divide the through hole. The elastic support portion 75 is formed in front and behind the protrusion 74 . A portion of the elastic support portion 75 located on the front side of the protrusion 74 is shorter than a portion located on the rear side of the protrusion 74 .

<Effect>
The effects of Modification 2 will be explained.

In modification 2, as shown in FIG. 27, the terminal unit 215 includes an internal terminal 250 connected to the internal conductor 91, a dielectric member 260 holding the internal terminal 250, and an external terminal 270 connected to the external conductor 93. , is provided. External terminal 270 accommodates internal terminal 250. The internal terminal 250 includes a crimp portion 54 that is crimped to the internal conductor 91 .

Here, the terminal unit 215 further includes a conductive impedance adjustment member 280 formed separately from the internal terminal 250 and the external terminal 270. The impedance adjustment member 280 has an adjustment section 280 located between the external terminal 270 and the internal terminal 250 and at a position where the impedance of the crimp section 54 can be adjusted. Note that in Modification 2, the entire impedance adjustment member 280 serves as the adjustment section 280.
Therefore, an excessive increase in impedance at the crimp portion 54 is suppressed, and the terminal unit 215 can have enhanced impedance matching.

In addition, although the modification 2 has other effects due to the same configuration as the above-described embodiment and modification 1, the description thereof will be omitted. Hereinafter, the effects of a configuration different from that of the above embodiment and modification 1 will be described.

Furthermore, in Modification 2, as shown in FIG. 30, the external terminal 270 includes an elastic support portion 75 that elastically supports the protrusion 74. Therefore, compared to a mode in which the elastic support portion 75 is formed on the impedance adjustment member 280, it is easier to realize a structure in which desired contact pressure can be obtained while ensuring ease of assembly of the terminal unit 215.
Further, the elastic support portion 75 is a double-sided spring formed so as to divide a through hole formed in the impedance adjustment member 280. Therefore, the inductance parasitic to the impedance adjustment member 280 or the external terminal 270 can be reduced compared to the case where the elastic support portion 75 is a cantilever spring.

Furthermore, in the second modification, the direction in which the dielectric member 260 is inserted into the main body portion 71 of the external terminal 270 is from the rear. Therefore, the manufacturing process of the terminal unit 215 is simple.

Furthermore, in the second modification, the rear end of the third plate portion 71c of the main body portion 71 of the external terminal 270 is formed forward of the rear ends of the pair of second plate portions 71b. Therefore, the process of inserting the dielectric member 260 into the main body portion 71 from the rear becomes possible or the workability thereof is improved.

<Modification 3: Terminal unit 315>
Next, a terminal unit 315 according to Modification 3 will be described using FIGS. 31 to 37.
Note that parts or portions having the same configuration as those of the embodiment or modified example described above will be designated by the same reference numerals in the drawings, and the description thereof will be omitted.

As shown in FIG. 31, the terminal unit 315 includes an internal terminal 350, a dielectric member 360, an external terminal 370, an impedance adjustment member 380, and a sleeve 319.

(Assembling procedure)
The procedure for assembling the terminal unit 315 is generally as follows.
(1) The internal terminal 350 is crimped onto the internal conductor 91 of the shielded cable 90B, the dielectric member 360 is assembled, and the internal terminal 350 is accommodated in the dielectric member 360.
(2) The impedance adjustment member 380 is attached to the dielectric member 360, and the first crimping portion 89 is crimped to the outer conductor 93 of the shielded cable 90B.
(3) Insert the dielectric member 360 into the main body 71 of the external terminal 370 from the rear side of the main body 71 . At this time, the dielectric member 360 is inserted into the main body portion 71 of the external terminal 370 from behind and above diagonally from behind.
(4) The second crimp portion 73 of the external terminal 370 is crimp-bonded to the outer sheath 94 of the shielded cable 90B.

As shown in FIG. 33, the impedance adjustment member 380 includes a front-rear extending portion 81 and a lid portion 82. As shown in FIG.
The longitudinally extending portion 81 includes a pair of opposing plate portions 81b and a connecting plate portion 81a.
The lid portion 82 has flat plate portions 83b, 83b and connecting curved portions 84b, 84b.

The connecting curved portions 84b, 84b have a pair of first curved portions 84b that connect the flat plate portions 83b, 83b and the pair of opposing plate portions 81b. The first curved portion 84b extends in the unit vertical direction (Y direction).
The flat plate portions 83b, 83b have a pair of separation portions 83b each connected to a pair of first curved portions 84b. The pair of separation parts 83b are separated from each other.

In other words, the lid part 82 has a pair of side plate parts 82b arranged so as to sandwich the internal conductor 91 therebetween. The lid portion 82 does not have a top plate portion (see top plate portion 82a in FIG. 14) that connects the pair of side plate portions 82b to each other. Each side plate portion 82b includes a first curved portion 84b and a separating portion 83b.
As a result, the internal conductor 91 and the cylindrical protrusion 64 pass through the lid part 82 in the front-rear direction, and the lid part 82 is opened in one direction perpendicular to the front-rear direction (in the third modification, the -Y direction, which is the downward direction of the unit). A passage portion 85 is formed. The passage portion 85 is a space formed between the pair of side plate portions 82b.

As shown in FIG. 36, the width of the separation part 83b is large at the top of the lid 82, and the width of the separation part 83b is small at the bottom of the lid 82. Therefore, at the top of the lid 82, the width of the space between the pair of side plates 82b is narrow, and at the bottom of the lid 82, the width of the space between the pair of side plates 82b is wide.

A protruding piece 81 a 1 arranged in the protruding piece arrangement part 63 a of the dielectric member 360 is formed in the longitudinally extending portion 81 .

The impedance adjustment member 380 has a biasing portion 86 that biases the sleeve 319 toward the impedance adjustment member 380 .
The biasing portion 86 includes a pair of curved portions 86c and a pair of biasing pieces 86d. Each of the pair of biasing pieces 86d has its plate thickness direction directed toward the unit width direction. The pair of curved portions 86c are formed on the outside in the width direction of the connecting plate portion 81a, and extend in the front-rear direction.
As shown in FIG. 34, the enlarged diameter portion 19a of the sleeve 319 is sandwiched between the pair of biasing pieces 86d and the pair of side plate portions 82b in the front-rear direction. In other words, the biasing portion 86 having the pair of biasing pieces 86d biases the enlarged diameter portion 19a of the sleeve 319 toward the lid portion 82 of the impedance adjustment member 380. Thereby, the impedance adjustment member 380 and the sleeve 319 are locked to each other in the front-rear direction (axial direction).
Further, the sleeve 319 is sandwiched in the width direction between the pair of biasing pieces 86d. This also causes the pair of biasing pieces 86d to be elastically deformed. Therefore, the contact between the impedance adjustment member 380 and the sleeve 319 is elastic contact.

The front-to-back dimension of the biasing piece 86d gradually becomes smaller as it moves toward the bottom of the unit, which is the mounting direction of the impedance adjustment member 380.
Specifically, the rear plate end of the biasing piece 86d extends in a direction inclined with respect to the downward direction of the unit, and the front plate end of the biasing piece 86d extends in a direction parallel to the downward direction of the unit. extending in the direction. The front plate end of the biasing piece 86d contacts the enlarged diameter portion 19a of the sleeve 319.

The impedance adjustment member 380 has a first crimp portion 89 .
The first crimping portion 89 is crimped to the outer conductor 93 of the shielded cable 90B. Specifically, the first crimping portion 89 is crimped to the outer conductor 93 located on the outside of the sleeve 319 .
The upper portion of the first crimp portion 89 is located below the connecting plate portion 81a. The upper portion of the first crimp portion 89 and the connecting plate portion 81a are diagonally connected by the connecting portion 88.

The external terminal 370 is a member that is connected to the external conductor 93 of the shielded cable 90B and accommodates the internal terminal 350, the dielectric member 360, and the impedance adjustment member 380. Specifically, the external terminal 370 is (electrically) connected to the external conductor 93 of the shielded cable 90B via the impedance adjustment member 380. The external terminal 370 does not have a first crimp portion (see first crimp portion 72 in FIG. 17) that connects to the outer conductor 93 of the shielded cable 90B.

The main body portion 71 of the external terminal 370 includes a first plate portion 71a, a pair of second plate portions 71b, and a third plate portion 71c. The front end of the third plate part 71c is formed at the rear of the front ends of the first plate part 71a and the pair of second plate parts 71b.

The rear end of the third plate part 71c is formed forward of the rear end of the second plate part 71b. This improves the workability of the step of inserting the dielectric member 360 into the main body portion 71 from the rear.

Furthermore, the external terminal 370 has a second crimp portion 73 .
The second crimping portion 73 is crimped to the outside of the outer sheath 94 of the shielded cable 90B.

As shown in FIG. 35, the main body portion 71 of the external terminal 370 has a plurality of protrusions 74 that come into contact with the impedance adjustment member 380.
The protruding portion 74 has a shape that protrudes toward the inside of the main body portion 71, and specifically has a dome shape. The protruding portion 74 is formed on each of the pair of second plate portions 71b and third plate portions 71c. Specifically, one protrusion 74 is formed in each of the pair of second plate portions 71b and third plate portions 71c.

Further, the main body portion 71 includes an elastic support portion 75 that elastically supports the protrusion portion 74 . The elastic support portions 75 are provided corresponding to each of the plurality of protrusions 74 . The elastic support portion 75 is a double-sided spring. Specifically, a through hole is formed in the plate portion constituting the main body portion 71, and the elastic support portion 75 and the protruding portion 74 are formed to divide the through hole. The elastic support portion 75 is formed in front and behind the protruding portion 74 .

Regarding the elastic support part 75 formed on the second plate part 71b, the part of the elastic support part 75 located on the front side of the protrusion part 74 is shorter than the part located on the rear side of the protrusion part 74.
On the other hand, regarding the elastic support part 75 formed in the third plate part 71c, the part of the elastic support part 75 located on the front side of the protrusion part 74 is longer than the part located on the rear side of the protrusion part 74. . Thereby, the protruding portion 74 formed on the third plate portion 71c can be placed closer to the rear. In particular, in Modification 3, since the rear end of the third plate part 71c is formed forward of the rear end of the second plate part 71b, the protrusion 74 formed in the third plate part 71c is Easy to place. Therefore, the above configuration is effective.

(Sleeve 319)
As shown in FIG. 33, the sleeve 319 is a machined product, a die-cast product, or an injection molded product.

The sleeve 319 has an enlarged diameter portion 19a formed at the front end thereof. The outer diameter of the enlarged diameter portion 19a is larger than that of the other portions. The enlarged diameter portion 19a is sandwiched between the lid portion 82 and the biasing portion 86 of the impedance adjustment member 380 in the front-rear direction. Thereby, the sleeve 319 comes into pressure contact with the impedance adjustment member 380.

The sleeve 319 has a reduced diameter portion 19b formed at the rear end of the sleeve 319. In the reduced diameter portion 19b, the outer diameter is reduced toward the rear side. This facilitates the operation of inserting the sleeve 319 between the insulation coating 92 and the outer conductor 93 of the shielded cable 90B.

<Effect>
The effects of Modification 3 will be explained.

In modification 3, as shown in FIG. 31, the terminal unit 315 includes an internal terminal 350 connected to the internal conductor 91, a dielectric member 360 holding the internal terminal 350, and an external terminal 370 connected to the external conductor 93. , is provided. External terminal 370 accommodates internal terminal 350. The internal terminal 350 includes a crimp portion 54 that is crimped to the internal conductor 91 .

Here, the terminal unit 315 further includes a conductive impedance adjustment member 380 formed separately from the internal terminal 350 and the external terminal 370. The impedance adjustment member 380 has an adjustment part 380a located between the external terminal 370 and the internal terminal 350 and at a position where the impedance of the crimp part 54 can be adjusted. Note that the adjustment section 380a is a part of the impedance adjustment member 380.
Therefore, an excessive increase in impedance at the crimp portion 54 is suppressed, and the terminal unit 315 can have enhanced impedance matching.

In addition, although the modification 3 has other effects due to the same configuration as the above-described embodiment, modification 1, and modification 2, the description thereof will be omitted. Hereinafter, the effects of the configurations different from those of the above embodiment, Modification 1, and Modification 2 will be described.

By the way, when the external terminal 270 has the first crimp part 72 as in Modification 2 (FIGS. 27 to 30), there is usually a stepped part 79 (FIG. 30) between the main body part 71 and the first crimp part 72. ) must be formed in advance. However, this stepped portion 79 makes it difficult to insert the dielectric member 260 into the main body portion 71 from the rear.
Therefore, in modification example 3, the impedance adjustment member 380 has a first crimping part 89 that is crimped to the outer conductor 93 (the part of the outer sheath 94 that is not folded back to the outside), and the outer terminal 370 has a It does not have a first crimping portion that is crimped to the outside of the covering 94 (the portion that is not folded back). Therefore, it is easy to insert the dielectric member 360 from the rear of the main body portion 71.

[Supplementary explanation of the above embodiment]
In addition, in the embodiment described above, an example has been described in which the dielectric member is composed of a first member and a second member that are formed separately from each other. However, the dielectric member of the present disclosure is not limited to this, and may be formed as a whole.

Further, in the above embodiment, an example was described in which the terminal unit is housed in the housing 12 and constitutes a part of the connector 100. However, the terminal unit of the present disclosure is not limited to this.

Further, in the above embodiment, the sleeve 19, 319 is inserted between the insulation coating 92 and the outer conductor 93 of the shielded cable 90B. However, the sleeve of the present disclosure is not limited thereto. For example, the outer conductor of the shielded cable may have a two-layer structure of foil and braid, and the sleeve may be inserted between the foil and braid. Even in this case, it can be said that the sleeve is placed outside the insulation coating 92.

12 Housing 15, 115, 215, 315 Terminal unit 19, 319 Sleeve 50, 150, 250, 350 Internal terminal 51 Contact portion 54 Crimp portion 60, 160, 260, 360 Dielectric member 63 Placement recess 63, 65b Avoidance recess 63a Protrusion Piece placement part 64 Cylindrical protrusion 64a Plunging part 65 Enlarged recess 65a Wide part 65b Narrow part 69 Groove 70, 170, 270, 370 External terminal 71 Main body part 71e Opening 72 External conductor connection part (first crimp part)
73 Second crimping part 74 Projection part 75 Elastic support part 80, 180, 280 Impedance adjustment member (adjustment part)
81 Front-rear extending portion 81a Connecting plate portion 81b Opposing plate portion 82 Lid portion 82a Upper plate portion 82b Side plate portion 85 Passing portion 86 Biasing portion 87 Elastic contact portion 89 First crimp portion 90B Shield cable 91 Internal conductor 92 Insulating coating 93 Outer conductor 94 Outer covering 100 Connector 380 Impedance adjustment member 380a Adjustment section

Claims (24)

A terminal unit attached to a shielded cable having one or more internal conductors and an outer conductor that shields the one or more internal conductors,
The terminal unit is
one or more internal terminals connected to the one or more internal conductors;
a dielectric member that holds the internal terminal;
an external terminal connected to the external conductor and accommodating the internal terminal;
a conductive impedance adjustment member formed separately from the internal terminal and the external terminal,
The internal terminal includes a crimping part that is crimped to the internal conductor,
The impedance adjustment member has an adjustment part located between the external terminal and the internal terminal and at a position where the impedance of the crimp part can be adjusted.
terminal unit. The external terminal is
having a main body portion accommodating the internal terminal;
An opening is formed in the main body portion so that an internal space of the main body portion is opened to the rear side,
The adjustment portion has a lid portion whose plate thickness direction is oriented in a direction intersecting a plane perpendicular to the front-rear direction, and the lid portion is arranged so as to narrow the opening.
The terminal unit according to claim 1. The lid portion is
a pair of side plate portions arranged to sandwich the internal conductor;
an upper plate portion that connects the pair of side plate portions to each other;
A passage portion through which the internal conductor passes in the front-rear direction is formed between the pair of side plate portions, and the passage portion is open in one direction perpendicular to the front-rear direction.
The terminal unit according to claim 2. The adjustment part has a front-back direction extending part that extends in the front-back direction with the plate thickness direction in a direction along a plane perpendicular to the front-back direction.
The terminal unit according to claim 1 or claim 2. The longitudinally extending portion is
a pair of opposing plate portions that face each other so as to sandwich the internal terminal;
a connecting plate portion that connects the pair of opposing plate portions to each other;
The terminal unit according to claim 4. Each of the three plate portions, the pair of opposing plate portions and the connecting plate portion, is in contact with the external terminal.
The terminal unit according to claim 5. Contact between each of the three plate parts and the external terminal is realized via a protrusion formed on at least one of the longitudinally extending part or the external terminal,
The terminal unit according to claim 6. Contact between each of the three plate parts and the external terminal is realized via a protrusion formed on the external terminal,
The terminal unit according to claim 6. the impedance adjustment member and the external terminal are in contact with each other and electrically connected;
The terminal unit according to claim 1 or claim 2. Contact between the impedance adjusting member and the external terminal is realized via a protrusion formed on at least one of the impedance adjusting member or the external terminal.
The terminal unit according to claim 9. The impedance adjustment member is arranged on the outer surface of the dielectric member,
An arrangement recess in which the impedance adjustment member is arranged is formed on the outer surface of the dielectric member.
The terminal unit according to claim 1 or claim 2. The terminal unit includes a conductive sleeve disposed outside an insulating coating covering the internal conductor,
the sleeve and the impedance adjustment member are in contact with each other,
The terminal unit according to claim 1 or claim 2. The sleeve is formed as a machined product, a die-cast product, or an injection molded product.
The terminal unit according to claim 12. The contact between the sleeve and the impedance adjustment member is a pressing contact,
The terminal unit according to claim 12. The impedance adjustment member has a biasing portion that biases the sleeve toward the impedance adjustment member.
The terminal unit according to claim 14. The adjustment section has a lid section that orients the plate thickness direction in a direction intersecting a plane perpendicular to the front-rear direction,
The lid portion has a side plate portion formed in a cantilever shape,
the sleeve contacts the side plate portion;
The terminal unit according to claim 12. The terminal unit includes a conductive sleeve disposed outside an insulating coating covering the internal conductor,
the dielectric member has a plunger disposed within the sleeve;
The terminal unit according to claim 1. The protruding portion is formed in a cylindrical shape so as to surround the internal conductor.
The terminal unit according to claim 17. The protrusion is formed on the external terminal,
The impedance adjustment member has an elastic contact portion that elastically contacts the protrusion.
The terminal unit according to claim 10. The impedance adjustment member has a hole,
The elastic contact part is a double-sided spring formed to divide the hole part,
The terminal unit according to claim 19. The terminal unit includes a conductive sleeve disposed outside an insulating coating covering the internal conductor,
The sleeve and the impedance adjustment member are locked to each other in the front-rear direction,
The impedance adjustment member and the dielectric member are locked to each other in the front-rear direction;
The terminal unit according to claim 1. The impedance adjustment member has a first crimping part that is crimped to the outer conductor,
The external terminal is
a main body into which the dielectric member can be inserted from the rear;
a second crimping part formed rearward of the main body part and crimping to the shielded cable;
The terminal unit according to claim 1. The protrusion is formed on the external terminal,
The external terminal has an elastic support portion that elastically supports the protrusion.
The terminal unit according to claim 10. A plurality of terminal units according to claim 1 or claim 2,
a housing that holds the plurality of terminal units;
A connector with a