CN117293602A

CN117293602A - Terminal unit and connector provided with same

Info

Publication number: CN117293602A
Application number: CN202310742894.0A
Authority: CN
Inventors: 野口大辅; 新井隆之; 行武广章; 陆一也; 桐生幸一
Original assignee: Iriso Electronics Co Ltd
Current assignee: Iriso Electronics Co Ltd
Priority date: 2022-06-24
Filing date: 2023-06-21
Publication date: 2023-12-26

Abstract

The terminal unit (15) is provided with an internal terminal (150) connected to the internal conductor (91) of the shielded cable (90B), a dielectric member (160) holding the internal terminal (150), and an external terminal (170) connected to the external conductor (93). The terminal unit (15) further includes a conductive impedance adjusting member (180) formed separately from the internal terminal (150) and the external terminal (170). The impedance adjusting member (180) has an adjusting section (80) which is disposed between the external terminal (170) and the internal terminal (150) and can adjust the position of the impedance of the pressure-bonding section (54).

Description

Terminal unit and connector provided with same

Technical Field

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

Background

Patent document 1 discloses a terminal unit attached to a shielded cable. The terminal unit has an inner terminal connected to an inner conductor of the shielded cable, a dielectric member holding the inner terminal, and an outer terminal connected to an outer conductor of the shielded cable and accommodating the inner terminal and the dielectric member. The inner terminal has a crimp portion crimped to the inner conductor.

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open No. 2008-181810

Disclosure of Invention

In the terminal unit as described above, the impedance may excessively rise in the pressure-bonding section.

An object of the present disclosure is to provide a terminal unit that suppresses an excessive rise in impedance in a crimp portion and enhances impedance matching, and a connector provided with the same.

The terminal unit according to the first aspect is mounted on a shielded cable having one or more inner conductors and an outer conductor shielding the one or more inner conductors, and includes one or more inner terminals connected to the one or more inner conductors, a dielectric member holding the inner terminals, an outer terminal connected to the outer conductor and accommodating the inner terminals, and an impedance adjusting member having conductivity formed separately from the inner terminals and the outer terminals, the inner terminal including a pressure-contact portion pressure-contacted to the inner conductors, the impedance adjusting member including an adjusting portion arranged between the outer terminal and the inner terminal and capable of adjusting a position of impedance of the pressure-contact portion.

In this embodiment, the terminal unit is mounted to the shielded cable. The shielded cable has one or more inner conductors and an outer conductor shielding 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 an external conductor. The external terminal accommodates the internal terminal. The inner terminal includes a crimp portion crimped to the inner conductor.

The terminal unit further includes a conductive impedance adjusting member formed separately from the internal terminal and the external terminal. The impedance adjusting member has an adjusting portion which is disposed between the external terminal and the internal terminal and can adjust the position of the impedance of the pressure-bonding section.

This can suppress an excessive rise in impedance in the pressure-bonding section, and can be a terminal unit with enhanced impedance matching.

In the embodiment described later, an example in which the adjusting portion is disposed at a position overlapping the pressure-bonding portion in the front-rear direction will be described. However, the adjusting portion of the present embodiment is not limited to this, and may be disposed in the vicinity of the pressure-bonding section to such an extent that the impedance of the pressure-bonding section can be adjusted. That is, the above-described "position at which the impedance of the pressure-bonding section can be adjusted" is not a requirement that requires strict explanation. In the present disclosure, the front-rear direction (axial direction) refers to a direction parallel to a portion of the inner conductor that is crimped to the crimp portion.

In the embodiment described later, an example will be described in which the entire impedance adjusting member is located between the external terminal and the internal terminal. However, the impedance adjusting member of the present embodiment is not limited to this, and the adjusting portion may be located between the external terminal and the internal terminal.

In the embodiment described later, an example in which the impedance adjusting member is electrically connected to the external terminal or the external conductor will be described. However, the impedance adjusting member of the present embodiment is not limited to this, and may not be electrically connected to an external terminal or an external conductor.

In the embodiment described later, an example in which the impedance adjusting member is disposed on the outer surface of the dielectric member will be described. However, the impedance adjusting member of the present embodiment is not limited to this, and may be disposed on the inner surface of the dielectric member, or may be inserted into and buried in the wall of the dielectric member.

In the embodiment described below, an example will be described in which the dielectric member has a concave portion in which the impedance adjusting member is disposed. However, the dielectric member of the present embodiment is not limited thereto, and may not have such a recess.

In the embodiment described later, an example in which the impedance adjusting member is fixed to the dielectric member or the external terminal will be described. However, the impedance adjusting member of the present 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.

In the embodiment described later, an example in which the terminal unit is mounted on a shielded cable having one internal conductor will be described. However, the terminal unit of the present embodiment is not limited to this, and may be mounted on a shielded cable having two or more inner conductors. In this case, the terminal unit includes two or more internal terminals.

In the embodiment (except for modification 3) described later, an example in which the external terminal has the first pressure-bonding section and the external terminal is (electrically) connected to the external conductor in the first pressure-bonding section is described, but the external terminal of the present embodiment is not limited to this. The external terminal of the present embodiment may not have the first pressure-bonding section, and may be (electrically) connected to the external conductor via another member (see modification 3).

In the terminal unit according to the second aspect, in the first aspect, the external terminal includes a main body portion that houses the internal terminal, an opening that opens to the rear side of an internal space of the main body portion is formed in the main body portion, and the adjustment portion includes a cover portion that is arranged so that the opening is narrowed while the plate thickness direction is oriented in a direction intersecting a plane perpendicular to the front-rear direction.

In this embodiment, the external terminal has a main body portion for housing the internal terminal. Here, an opening is formed in the main body portion, the internal space of which is opened to the rear side. Thus, the external terminal including the main body portion is easier to manufacture than a case where such an opening is not formed in the main body portion.

The adjusting portion has a cover portion. The cover portion is a portion that faces the plate thickness direction in a direction intersecting a plane perpendicular to the front-rear direction, and is configured to narrow the opening. This narrows the opening of the main body, and prevents crosstalk between the internal terminal and other electronic components.

In the embodiment described later, an example will be described in which the lid portion has a portion (flat plate portion 83) in which the plate thickness direction is oriented in a direction perpendicular to a plane perpendicular to the front-rear direction (i.e., the front-rear direction). However, the lid portion of the present embodiment is not limited thereto, and may not have a portion that faces the plate thickness direction in the front-rear direction. For example, the flat surface portion of the cover portion may be inclined with respect to the front-rear direction. The cover portion may not have a flat portion.

In the terminal unit according to the third aspect, in the second aspect, the cover portion includes a pair of side plate portions disposed so as to sandwich the internal conductor and an upper plate portion connecting 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 opened in a direction perpendicular to the front-rear direction.

In this embodiment, the cover portion includes a pair of side plate portions disposed so as to sandwich the inner conductor, and an upper plate portion connecting the pair of side plate portions to each other. Then, a passage portion through which the inner conductor passes in the front-rear direction is formed between the pair of side plate portions, and the passage portion opens in a direction perpendicular to the front-rear direction.

Thus, the impedance adjusting member can be arranged from a direction perpendicular to the inner conductor in the front-rear direction at the time of assembling the terminal unit. Thereby, the terminal unit can be easily assembled.

In the terminal unit according to a fourth aspect, in any one of the first to third aspects, the adjustment portion has a front-rear direction extending portion that extends in the front-rear direction with a plate thickness direction oriented in a direction along a plane perpendicular to the front-rear direction.

In this embodiment, the adjustment portion has a front-rear direction extending portion. The front-rear direction extending portion extends the plate thickness direction in the front-rear direction toward a direction along a plane perpendicular to the front-rear direction.

This can strengthen the impedance matching as compared with a case where the adjustment portion does not have the front-rear direction extending portion.

In the embodiment described later, an example will be described in which the front-rear direction extending portion extends in the plate thickness direction in a direction parallel to a plane perpendicular to the front-rear direction. However, the longitudinal direction extending portion of the present embodiment 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 "direction along the plane" includes a direction slightly inclined with respect to the plane in addition to the direction parallel to the plane.

In a fifth aspect, the terminal unit according to the fourth aspect, the front-rear direction extending portion includes: a pair of opposing plate portions opposing each other so as to sandwich the internal terminal; and a connecting plate portion connecting the pair of opposed plate portions to each other.

In this embodiment, the front-rear direction extending portion includes a pair of opposing plate portions opposing each other so as to sandwich the internal terminal, and a connecting plate portion connecting the pair of opposing plate portions to each other.

This can strengthen impedance matching, as compared with a case where the front-rear direction extending portion is not formed so as to sandwich the internal terminal, for example.

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

In this embodiment, the pair of opposing plate portions and the three plate portions of the connecting plate portion are respectively in contact with the external terminals. This suppresses the occurrence of resonance noise between the plate portions and the external terminals.

In the terminal unit according to a seventh aspect, in the sixth aspect, the contact between the three plate portions and the external terminal is achieved via a protrusion formed in at least one of the front-rear direction extending portion and the external terminal.

In this embodiment, the three plate portions (the pair of opposing plate portions and the connecting plate portion) are respectively brought into contact with the external terminal via the protruding portion formed in at least one of the front-rear direction extending portion or the external terminal. The protruding portion is a portion formed so as to protrude from the adjacent portion and to connect paths of two or more directions to the portion adjacent to the top portion thereof. Therefore, the cantilever spring such as a spring piece does not correspond to the protruding portion, but the double-arm spring (the path connection between the adjacent portions to the top in two directions) corresponds to the protruding portion.

This makes it possible to maintain a stable contact state, as compared with a method in which planar portions are brought into contact with each other. Further, compared with the manner of contact with the cantilever spring via the spring piece or the like, the inductance parasitic to the resistance adjusting member or the external terminal can be reduced.

In a terminal unit according to an eighth aspect, in the sixth aspect, the three plate portions are respectively brought into contact with the external terminal via protruding portions formed in the external terminal.

In this embodiment, the three plate portions are respectively brought into contact with the external terminals via the protruding portions formed on the external terminals.

Therefore, the protruding portion can be formed larger than in the case where the protruding portion is formed in the front-rear direction extending portion of the impedance adjusting member. This is because the external terminal is easily formed larger than the front-rear direction extending portion. As a result, the contact between the external terminal and the impedance adjusting member can be stabilized.

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

In this embodiment, the impedance adjusting member and the external terminal are electrically connected in contact with each other. Thus, 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 is achieved via a protrusion formed on at least one of the impedance adjusting member and the external terminal.

In this aspect, the contact between the impedance adjusting member and the external terminal is achieved via a protrusion formed on at least one of the impedance adjusting member and the external terminal.

In the terminal unit according to an eleventh aspect, in any one of the first to tenth aspects, the impedance adjusting member is disposed on an outer surface of the dielectric member, and a disposition recess in which the impedance adjusting member is disposed is formed on the outer surface of the dielectric member.

In this embodiment, the impedance adjusting member is disposed on the outer surface of the dielectric member. Then, an arrangement recess in which the impedance adjusting member is arranged is formed on the outer surface of the dielectric member.

Thus, the dielectric member and the impedance adjusting member can be effectively accommodated in the external terminal.

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

In this embodiment, the terminal unit includes a conductive sleeve disposed outside an insulating cover covering the inner conductor. As a result, the change in the cross-sectional shape of the insulating cover covering the inner conductor is suppressed, and as a result, the impedance remains unchanged.

Further, the sleeve is in contact with the impedance adjusting member. This suppresses resonance that causes noise.

In the embodiments described below, an example in which the sleeve is in contact with the cover portion of the impedance adjusting member will be described. However, the present embodiment is not limited thereto. The sleeve of the present embodiment may be in contact with another portion (for example, the opposing plate portion) of the impedance adjusting member.

In the embodiments described below, an example will be described in which the sleeve is in press contact with the impedance adjusting member. However, the present embodiment is not limited thereto.

In addition, the sleeve and the impedance adjusting member may be bonded or welded.

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

In this embodiment, the sleeve is formed as a cut product, a die cast product, or an injection molded product. As a result, the dimensional accuracy of the sleeve can be improved as compared with the case where the sleeve is formed by press working a metal plate, and as a result, the sleeve can be more reliably brought into contact with the impedance adjusting member.

In addition, in this embodiment, since the degree of freedom in the shape of the sleeve is high, it is suitable to combine with the embodiment in which the impedance adjusting member has the first pressure contact portion. That is, in the case where the impedance adjusting member has the first pressure-bonding section, the first pressure-bonding section is formed correspondingly, and the degree of freedom in designing the impedance adjusting member is small with respect to the structure for bringing the sleeve into contact with the sleeve. To compensate for this, the sleeve is preferably formed as a machined product, a die cast product, or an injection molded body.

A connector pertaining to a fourteenth aspect is the twelfth or thirteenth aspect, wherein the sleeve is in press contact with the impedance adjusting member.

In this embodiment, the sleeve is in press contact with the impedance adjusting member. This can prevent the sleeve from coming into contact with the impedance adjusting member due to manufacturing tolerances of the sleeve, vibration during use, and the like.

In the embodiment described later, an example will be described in which the pressing contact direction between the sleeve and the impedance adjusting member is both the front-rear direction and the direction perpendicular to the front-rear direction (specifically, the width direction). However, the present embodiment is not limited thereto.

A connector pertaining to a fifteenth aspect is the connector pertaining to the fourteenth aspect, wherein the impedance adjusting member has a biasing portion that biases the sleeve toward the impedance adjusting member.

In this aspect, the impedance adjusting member has a biasing portion that biases the sleeve toward the impedance adjusting member. Thus, the impedance adjusting member can be brought into press contact with the sleeve without increasing the number of components.

A connector according to a sixteenth aspect is the connector according to any one of the twelfth to fifteenth aspects, wherein the adjustment portion includes a cover portion that faces a plate thickness direction in a direction intersecting a plane perpendicular to the front-rear direction, the cover portion includes a side plate portion formed in a cantilever shape, and the sleeve is in contact with the side plate portion.

In this embodiment, the cover portion has a side plate portion formed in a cantilever shape. Thus, the lid portion having the side plate portion can be formed by bending without rolling, and as a result, the manufacturing cost can be reduced.

The sleeve is in contact with the cantilever-shaped side plate portion. This suppresses resonance that causes noise.

In the embodiment described below, an example in which the side plate portions are formed as a pair will be described. However, the side plate portion of the present embodiment is not limited thereto.

A seventeenth aspect of the connector according to any one of the first to sixteenth aspects, wherein the terminal unit includes a conductive sleeve disposed outside an insulating cover covering the inner conductor, and the dielectric member includes an entry portion disposed in the sleeve.

The dielectric member has an entry portion disposed within the sleeve. This can suppress an increase in impedance of the portion of the inner conductor exposed from the insulating cover.

When specifically described, it is difficult to maintain the length of the portion of the inner conductor exposed from the insulating cover unchanged. When the exposed portion is long, the air layer formed between the sleeve and the inner conductor also becomes long, and the impedance increases in this portion.

Here, in this embodiment, since a part (inlet portion) of the dielectric member is disposed in the sleeve, formation of a large air layer between the sleeve and the inner conductor can be suppressed. As a result, an increase in impedance of the portion of the inner conductor exposed from the insulating cover can be suppressed.

In the embodiment described below, the entry portion is described as a cylindrical example, but the entry portion of the present embodiment is not limited to this.

In the seventeenth aspect of the connector according to the eighteenth aspect, the inlet portion is formed in a cylindrical shape so as to surround the inner conductor.

In this embodiment, the inlet portion is formed in a cylindrical shape so as to surround the inner conductor. This can improve the effect of suppressing the rise in impedance.

In the embodiment described later, an example in which the entry portion is configured to surround the inner conductor without any gap in the axial direction will be described. However, the entry portion of the present embodiment is not limited thereto, and a slit or the like may be formed.

A connector pertaining to a nineteenth aspect is the tenth aspect, wherein 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 embodiment, the protruding portion is formed on the external terminal. Then, the impedance adjusting member has an elastic contact portion that elastically contacts the protruding portion. Thus, the assembling property of the external terminal with the protruding portion is improved.

This embodiment corresponds to modification 1 described later.

Further, as in modification 1, the dielectric member preferably has an avoidance recess at a position corresponding to the elastic contact portion. By forming the avoidance recess, the elastic contact portion pressed against the projection can be retracted into the avoidance recess. However, unlike modification 1, the elastic contact portion may be thinned so that the surface of the elastic contact portion facing the dielectric member is concave. Such an elastic contact portion can be elastically deformed by contact with the protruding portion. Further, such an elastic contact portion and an avoidance recess portion formed in the dielectric member may be combined.

The elastic contact portion is preferably formed while maintaining the plate surface (while maintaining a flat plate surface without undergoing bending processing). Thus, the impedance adjusting member can be easily disposed 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), the elastic contact portion can be prevented from being caught by the main body of the external terminal.

A connector according to a twentieth aspect is the nineteenth aspect, wherein the impedance adjusting member is formed with a through hole, and the elastic contact portion is a double-arm spring formed so as to divide the through hole.

In this embodiment, the impedance adjusting member is formed with a through hole, and the elastic contact portion is a double-arm spring formed so as to divide the through hole. Therefore, compared with the mode that the elastic contact part is a cantilever spring, the inductance parasitic on the impedance adjusting component or the external terminal can be reduced.

A connector according to a twenty-first aspect is the connector according to any one of the first to twentieth aspects, wherein the terminal unit includes a conductive sleeve disposed outside an insulating cover covering the inner conductor, the sleeve and the impedance adjusting member are engaged with each other in a front-rear direction, and the impedance adjusting member and the dielectric member are engaged with each other in the front-rear direction.

The sleeve and the impedance adjusting member are engaged with each other in the front-rear direction, and the impedance adjusting member and the dielectric member are engaged with each other in the front-rear direction. This prevents the sleeve, the impedance adjusting member, and the dielectric member from being separated by an external force (in particular, a force for pulling the shielded cable during use).

The term "engaged with each other in the front-rear direction" means that the relative positions of the engaged portions in the front-rear direction do not change.

A twenty-second aspect of the present invention is the connector according to any one of the first to twenty-first aspects, wherein the impedance adjusting member has a first crimp portion crimped to the external conductor, and the external terminal has: a main body portion into which the dielectric member can be inserted from the rear; and a second crimp portion formed at a rear side of the main body portion and crimped to the shielded cable.

In the case where the external terminal is assumed to have the first crimp portion, it is generally 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 portion from the rear.

Therefore, in this embodiment, the impedance adjusting member has the first crimp portion crimped to the external conductor, and the external terminal does not have the crimp portion crimped to the external conductor. Therefore, the external terminal can be configured to be easily inserted from the rear of the main body.

This embodiment corresponds to modification 3 described later. In modification 3, an example in which the second pressure-bonding section is directly pressure-bonded to the outer surface of the outer cover of the shielded cable is described, but the second pressure-bonding section of the present embodiment is not limited to this. For example, the outer conductor of the shielded cable has a two-layer structure of a foil and a braid, the braid may be folded back on the outside of the outer cover, and the second crimp portion is crimped to the folded back portion.

In a twenty-third aspect of the connector according to 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. Then, the external terminal has an elastic supporting portion that elastically supports the protruding portion. Therefore, the protruding portion and the elastic support portion are easily formed to be larger than those of the impedance adjusting member.

In addition, the elastic support portion is preferably a double-arm spring from the viewpoint of reducing inductance parasitic on the external terminal.

This embodiment corresponds to modifications 2 and 3 described below.

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.

Effects of the invention

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 enhances impedance matching, it is possible to become a connector enhanced with impedance matching.

Drawings

Fig. 1 is a perspective view (right half cross-sectional view) showing a connector according to an embodiment.

Fig. 2 is an exploded perspective view (right half cross-sectional view) showing the connector of the embodiment.

Fig. 3 is a perspective view showing a terminal unit.

Fig. 4 is an exploded perspective view showing the terminal unit.

Fig. 5 is a perspective view showing an internal terminal.

Fig. 6 is a sectional view of the terminal unit (a section perpendicular to the up-down direction of the unit).

Fig. 7 is a sectional view of the terminal unit (a section perpendicular to the unit width direction).

Fig. 8 is a perspective view of the external terminal and the dielectric member, with the terminal unit omitted, showing a state of being mounted on the shielded cable.

Fig. 9 is a perspective view of the vicinity of the impedance adjusting section enlarged in the internal terminal connected to the shielded cable.

Fig. 10 is a perspective view (a left half cross-sectional view) showing a connector according to an embodiment.

Fig. 11 is an exploded perspective view (a left half cross-sectional view) showing a connector according to an embodiment.

Fig. 12 is an exploded perspective view showing the terminal unit.

Fig. 13 is a perspective view showing an internal terminal.

Fig. 14 is a perspective view showing the dielectric member and the impedance adjusting member.

Fig. 15 is a perspective view showing an external terminal.

Fig. 16 is a perspective view showing the terminal unit with the external conductor omitted.

Fig. 17 is a perspective view of the terminal unit.

Fig. 18 is a sectional view along the front-rear direction of the terminal unit.

Fig. 19 is a cross-sectional view (19-19 line cross-sectional view of fig. 18) orthogonal to the front-rear direction of the terminal unit.

Fig. 20 is an exploded perspective view of a terminal unit according to modification 1.

Fig. 21 is a perspective view of a terminal unit according to modification 1.

Fig. 22 is a perspective view showing a dielectric member and an impedance adjusting member according to modification 1.

Fig. 23 is a diagram showing a terminal unit according to modification 1 with an external terminal omitted.

Fig. 24 is a diagram showing a terminal unit according to modification 1.

Fig. 25 is a cross-sectional view showing a sleeve according to modification 1.

Fig. 26 is a sectional view showing an enlarged view of an entrance portion according to modification 1.

Fig. 27 is an exploded perspective view of a terminal unit according to modification 2.

Fig. 28 is a perspective view of a terminal unit according to modification 2.

Fig. 29 is a perspective view showing a dielectric member and an impedance adjusting member according to modification 2.

Fig. 30 is a diagram showing a terminal unit according to modification 2.

Fig. 31 is an exploded perspective view showing a terminal unit according to modification 3.

Fig. 32 is a perspective view showing a terminal unit according to modification 3.

Fig. 33 is a perspective view showing a dielectric member, an impedance adjusting member, and a sleeve according to modification 3.

Fig. 34 is a diagram showing a terminal unit according to modification 3 with an external terminal omitted.

Fig. 35 is a diagram showing a terminal unit according to modification 3.

Fig. 36 is a cross-sectional perspective view showing an impedance adjusting member according to modification 3.

Fig. 37 is a cross-sectional view showing an entrance portion according to modification 3.

Detailed Description

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

(connector 100)

Fig. 1 and 10 show a plurality of shielded cables 90A, 90B and a connector 100. Further, fig. 1 shows a right half of the connector 100, and fig. 10 shows a left half of the connector. The right half and the left half of the connector 100 are different in types of the built-in terminal units 14 and 15.

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

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

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

The plurality of terminal unit housing portions 12a are constituted by a plurality of terminal unit housing portions 12a located at an upper portion of the housing 12 and a plurality of terminal unit housing portions 12a located at a lower portion of the housing 12.

The terminal unit housing 12a is configured to be insertable into the terminal units 14 and 15 from the-X direction (the connector rear direction). The terminal unit housing 12a is configured such that the terminal units 14 and 15 inserted into the terminal unit housing 12a do not come out in the +x direction.

The housing 12 includes an elastic locking portion 12b for maintaining a connection state between the connector 100 and a mating connector (connection object, not shown). The elastic locking portion 12b has an operation portion 12b1 and a claw portion 12b2. By pressing the operation portion 12b1 to displace the claw portion 12b2, the connection between the connector 100 and the mating connector can be released. The elastic locking portion 12b is formed at an upper portion of the housing 12.

The connector 100 has a locking portion fixing member 16. In a state where the locking portion fixing member 16 is attached to the housing 12, the elastic locking portion 12b is prevented from being deflected. As a result, the disconnection of the connector 100 and the mating connector is prevented.

The connector 100 includes the release preventing member 18. In a state where the release preventing member 18 is attached, the terminal units 14 and 15 are prevented from being released in the-X direction (connector rear direction) from the terminal unit housing portion 12 a.

(terminal Unit 14)

The adhesion will be described with reference to fig. 3 to 9 with respect to the terminal unit 14.

In each figure, arrow X indicates the cell front direction (axial direction side), arrow Y indicates the cell upper direction, and arrow Z indicates the cell width direction side. That is, the terminal unit 14 is arranged in a posture in which one side in the width direction faces upward of the connector.

The terminal unit 14 is mounted on a shielded cable 90A having two inner conductors 91 (see fig. 6).

As shown in fig. 4, the terminal unit 14 includes two internal terminals 20, a dielectric member 30, and an external terminal 40.

(internal terminal 20)

Fig. 5 shows the internal terminal 20 in an enlarged manner.

The inner terminal 20 is connected to the inner conductor 91 of the shielded cable 90A. The internal terminal 20 is manufactured by bending a metal plate material into a cylindrical shape or the like. The internal terminals 20 have a substantially symmetrical structure in the cell width direction (Z direction).

In the following description, the radial direction refers to a direction perpendicular to a virtual central axis AX passing through the center of the internal terminal 20 and parallel to the cell front-rear direction. Then, the radially outer side refers to a direction away from the center axis AX among the radial directions.

The internal terminal 20 includes a contact portion 21, a cylindrical portion 22, a connecting portion 23, a pressure-bonding portion 24, and an impedance adjusting portion 25 in this order from the front side toward the rear side.

The contact portion 21 is a portion that contacts a signal terminal (not shown) of the mating connector. The contact portion 21 has a pair of contact pieces 21a. The pair of contact pieces 21a contact the signal terminals of the mating connector so as to sandwich the connection object (the signal terminals) from the cell width direction.

The cylindrical portion 22 is a portion formed by bending a plate material into a cylindrical shape. The cross-sectional shape of the cylindrical portion 22 orthogonal to the front-rear direction is circular. The ends of the plate material abut against each other at a position above the unit of the cylindrical portion 22 (+y direction side).

The cylindrical portion 22 has a locking hole 22a. The locking protrusion 36 (see fig. 7) of the dielectric member 30 is inserted into the locking hole 22a to restrict the relative movement of the internal terminal 20 with respect to the dielectric member 30 in the front-rear direction. The locking holes 22a are formed at two positions of the upper surface side (+y direction side) and the lower surface side (-Y direction side) of the cylindrical portion 22, see fig. 7.

The connecting portion 23 is a portion connecting the cylindrical portion 22 and the pressure-bonding section 24. Specifically, the coupling portion 23 couples the portion of the lower surface side (-Y direction side) of the cylindrical portion 22 and the bottom plate portion 24a of the pressure-bonding section 24 in the front-rear direction. The cross-sectional shape of the connecting portion 23 (cross-sectional shape orthogonal to the front-rear direction) is substantially circular arc-shaped.

The crimp portion 24 is a portion crimped to the inner conductor 91.

The crimp portion 24 has a bottom plate portion 24a and a pair of crimp pieces 24b. In a state where the inner conductor 91 of the shielded cable 90A is disposed on the inner surface side of the bottom plate portion 24a, the pair of crimping pieces 24b are deformed to crimp the inner conductor 91 in the vicinity of their end portions. Thereby, the pressure-bonding section 24 is pressure-bonded to the inner conductor 91, and the inner conductor 91 is electrically connected to the inner terminal 20.

The pressure-bonding section 24 has a substantially uniform cross-sectional structure in the front-rear direction.

The impedance adjusting section 25 is a portion connected to the pressure-bonding section 24. By providing the impedance adjusting section 25, the capacitance of the pressure-bonding section 24 increases and the impedance of the pressure-bonding section 24 decreases.

The impedance adjusting section 25 extends from the rear end portion of the bottom plate portion 24a of the pressure-bonding section 24. The impedance adjusting section 25 has a radial extending portion 25a and a front-rear extending portion 25b.

The radially extending portion 25a is a portion connected to the bottom plate portion 24a of the pressure-bonding section 24 via a curved portion, and extends radially outward.

Specifically, the radially extending portion 25a has its plate thickness direction oriented in the X direction (the cell front-rear direction). The radial extension portion 25a extends radially outward (specifically, downward of the cell, -Y direction) with its width direction oriented in the Z direction (cell width direction). The width dimension (dimension in the cell width direction) of the radially extending portion 25a is preferably 50% or more, more preferably 80% or more of the width dimension of the pressure-bonding section 24. The width dimension of the crimp portion 24 described herein refers to the width dimension in a state where the crimp portion 24 is crimped to the inner conductor 91.

The front-rear direction extending portion 25b is a portion connected to the radial extending portion 25a via a curved portion, and extends rearward (-X direction).

Specifically, the front-rear direction extending portion 25b faces the plate thickness direction thereof in the unit up-down direction (Y direction). The front-rear direction extending portion 25b extends in the width direction (Z direction) toward the rear side (-X direction) toward the cell width direction. The width dimension of the front-rear direction extending portion 25b is preferably 50% or more, more preferably 80% or more of the width dimension of the pressure-bonding section 24. In the present embodiment, the width dimension of the front-rear direction extending portion 25b is substantially the same as the width dimension of the radial extending portion 25 a.

The front-rear direction extending portion 25b is arranged along the vicinity of the outer surface of the insulating cover 92 of the shielded electrical cable 90A. As shown in fig. 7, in a state where the internal terminal 20 is attached to the shielded cable 90A, a gap between the front-rear direction extending portion 25b and the insulating cover 92 (a gap in the unit up-down direction in the present embodiment) is preferably smaller than a plate thickness of the front-rear direction extending portion 25 b. In a state where the internal terminal 20 is attached to the shielded cable 90A, the insulating cover 92 is preferably in contact with or in close proximity to the radially extending portion 25a of the impedance adjusting portion 25.

The other end 25b1 of the front-rear direction extending portion 25b is a carrier cutoff portion 26. The carrier cutting portion 26 is a portion separated from the carrier by cutting at last when the internal terminal 20 is manufactured by the sequential feeding process.

(dielectric part 30)

The dielectric member 30 is a member that holds two internal terminals 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 constituted by combining the first member 31 and the second member 32 in the unit up-down direction (Y direction).

As shown in fig. 6 and 7, a housing space 33 for housing the internal terminal 20 is formed inside the dielectric member 30. The sectional shape of the storage space 33 changes according to the position in the front-rear direction thereof.

The cross-sectional shape of the housing space 33 is a shape (specifically, a circular shape) along the outer shape of the pressure-bonding section 24 at a position corresponding to the rear end portion (portion adjacent to the impedance adjusting section 25) of the pressure-bonding section 24. Thus, the rear end portion of the pressure-bonding section 24 of the internal terminal 20 is not displaced in the radial direction with respect to the dielectric member 30. That is, in this position, the housing space 33 of one internal terminal 20 is separated from the housing space 33 of the other internal terminal 20, and the partition 34 (see fig. 6) is interposed between the one internal terminal 20 and the other internal terminal 20.

Further, the size of the cross section of the pressure-bonding section 24 in the state of being pressure-bonded to the inner conductor 91 is likely to be inconsistent. Thereby, the storage space 33 is formed as: the position corresponding to the rear end portion of the pressure-bonding section 24 is allowed to accommodate the possible misalignment.

However, as a result, a certain degree of clearance is generated between the pressure-bonding section 24 and the dielectric member 30, and only the dielectric member 30 cannot sufficiently reduce the impedance of the pressure-bonding section 24 or the exposed portion 91e of the internal conductor 91.

The cross-sectional shape of the housing space 33 is enlarged in the unit up-down direction (Y direction) compared with the position corresponding to the rear end portion of the pressure-bonding section 24 (the portion adjacent to the impedance adjusting section 25) at the position corresponding to the front side compared with the rear end portion of the pressure-bonding section 24 (see fig. 7). The housing space 33 of one internal terminal 20 is connected to the housing space 33 of the other internal terminal 20 (see fig. 6).

The cross-sectional shape of the housing space 33 is enlarged in the radial direction at a position corresponding to the impedance adjusting section 25, compared with a position corresponding to the rear end portion (a portion adjacent to the impedance adjusting section 25) of the pressure-bonding section 24. This makes it possible to dispose a part (tip portion) of the impedance adjusting section 25 and the insulating cover 92. From a different point of view, as shown in fig. 7, it can be said that a recess 35 is formed in the rear surface 30r of the dielectric member 30, the recess being formed in the depth direction on the front side, and the impedance adjusting section 25 and a part (front end portion) of the insulating cover 92 are disposed. Thus, the impedance adjusting section 25 is surrounded by the dielectric member 30 without protruding rearward from the dielectric member 30. In this position, the receiving space 33 of one internal terminal 20 is separated from the receiving space 33 of the other internal terminal 20, and the partition 34 is interposed between the one internal terminal 20 and the other internal terminal 20.

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 disposed in the locking hole 22a of the internal terminal 20.

(external terminal 40)

The external terminal 40 is connected to the external conductor 93 and accommodates the dielectric member 30.

The external terminal 40 is manufactured by bending a metal plate material or the like.

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

The main body 41 includes a first plate 41a and a pair of second plates 41b.

The first plate portion 41a is rectangular flat plate-like, and has a plate thickness direction oriented in the unit up-down direction (Y direction). The pair of second plate portions 41b are each rectangular flat plate-like, and have a plate thickness direction oriented in the cell width direction (Z direction). The pair of second plate portions 41b are connected to the first plate portion 41a via curved portions.

The main body 41 further includes a third plate 41c. The third plate portion 41c connects upper ends (+one end in the Y direction) of the pair of second plate portions 41b to each other in the cell width direction. The third plate portion 41c is rectangular flat plate-like, and has a plate thickness direction oriented in the unit up-down 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 with each other. The front end of the third plate portion 41c is formed on the rear side from the front ends of the first plate portion 41a and the pair of second plate portions 41b.

The outer conductor connecting portion 42 is a portion connected to the outer conductor 93 of the shielded cable 90A. As shown in fig. 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 outside the outer cover 94, and the outer conductor connecting portion 42 is connected to the folded back portion.

The connection portion 43 is a portion connecting the main body portion 41 and the external conductor connection portion 42 in the X direction. The cross-sectional shape of the connecting portion 43 is substantially U-shaped with the +y direction open.

The terminal unit 14 further includes an additional shielding member 98 (see fig. 3 and 7). The additional shielding 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 coupling portion 43 and the additional shielding member 98, the two inner conductors 91 (and the two insulating covers 92) of the shielded cable 90A are concentrated to be surrounded in the circumferential direction.

(terminal Unit 15)

Next, the terminal unit 15 will be described with reference to fig. 12 to 19.

In each figure, arrow X indicates the cell front direction (axial direction side), arrow Y indicates the cell upper direction, and arrow Z indicates the cell width direction side. That is, the terminal unit 15 is arranged in a posture in which one side in the width direction faces upward of the connector.

Unlike the terminal unit 14, the terminal unit 15 is mounted on a shielded cable 90B having one inner conductor 91 (see fig. 12).

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 adjusting member 80.

(internal terminal 50)

Fig. 13 shows the internal terminal 50 in an enlarged manner.

The inner terminal 50 is connected to the inner conductor 91 of the shielded cable 90B. The internal terminal 50 is manufactured by bending a metal plate material into a cylindrical shape. The internal terminals 50 have a substantially symmetrical structure in the cell width direction (Z direction).

In the following description, the radial direction refers to a direction perpendicular to a virtual central axis AX passing through the center of the internal terminal 50 and parallel to the cell front-rear direction. Then, the radially outer side refers to a direction away from the center axis AX among the radial directions.

The internal terminal 50 includes a contact portion 51, a cylindrical portion 52, a coupling portion 53, and a pressure-bonding portion 54 in this order from the front side toward the rear side. The internal terminal 50 is not provided with an impedance adjusting section 25 (see fig. 5) unlike the internal terminal 20.

The contact portion 51 is a portion that contacts a signal terminal (not shown) of the mating connector. The contact portion 51 has a pair of contact pieces 51a. The pair of contact pieces 51a contact the signal terminals of the mating connector so as to sandwich the connection object (the signal terminals) from the cell width direction.

The cylindrical portion 52 is a portion formed by bending a plate material into a cylindrical shape. The cross-sectional shape of the cylindrical portion 52 orthogonal to the front-rear direction is circular. The ends of the plate material are positioned above the unit of the tubular portion 52 (+y direction side) in a matching state.

The cylindrical portion 52 has a locking hole 52a. By inserting the locking protrusion 66 (see fig. 18) of the dielectric member 60 into the locking hole 52a, the relative movement of the internal terminal 50 with respect to the dielectric member 60 in the front-rear direction is restricted. The locking holes 52a are formed at two positions of the upper surface side (+y direction side) and the lower surface side (-Y direction side) of the cylindrical portion 52, see fig. 18.

The middle portion of the cylindrical portion 52 has a smaller outer diameter than the front portion and the rear portion of the cylindrical portion 52. Two locking holes 52a are formed in the middle of the cylindrical portion 52.

The connecting portion 53 is a portion connecting the cylindrical portion 52 and the pressure-bonding section 54. Specifically, the coupling portion 53 couples the portion of the lower surface side (-Y direction side) of the cylindrical portion 52 and the bottom plate portion 54a of the pressure-bonding section 54 in the front-rear direction. The cross-sectional shape of the connecting portion 53 (cross-sectional shape orthogonal to the front-rear direction) is substantially circular arc-shaped.

The crimp portion 54 is a portion crimped to the inner conductor 91 of the shielded cable 90B.

The pressure-bonding section 54 has a bottom plate section 54a and a pair of pressure-bonding tabs 54b. In a state where the inner conductor 91 of the shielded cable 90B is disposed on the inner surface side of the bottom plate portion 54a, the pair of crimping pieces 54B are deformed to crimp the inner conductor 91 in the vicinity of the end portions thereof. Thereby, the pressure-bonding section 54 is pressure-bonded to the inner conductor 91, and the inner conductor 91 is electrically connected to the inner terminal 50.

The pressure-bonding section 54 has a substantially uniform cross-sectional structure along the front-rear direction.

(dielectric part 60)

The dielectric member 60 is a member for holding 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 constituted by combining the first member 61 and the second member 62 in the unit up-down direction (Y direction).

As shown in fig. 18 and 19, a space for accommodating the internal terminal 50 is formed inside the dielectric member 60. The cross-sectional shape of the space accommodating the internal terminal 50 is a shape substantially along the outer shape of the internal terminal 50.

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

As shown in fig. 14, a disposition recess 63 for disposing the impedance adjusting member 80 is formed on the outer surface of the dielectric member 60.

The placement 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 is smaller in 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 periphery of the upper surface, the pair of side surfaces (surfaces facing outward in the cell width direction), and the lower surface among the outer surfaces of the dielectric member 60. However, in relation to the shape of the impedance adjusting member 80 of the present embodiment, a portion of the arrangement recess 63 corresponding to the lower surface of the dielectric member 60 may be omitted.

In the present embodiment, the front portion 60C of the dielectric member 60 is smaller in cross-sectional shape than the intermediate portion 60A (general portion).

The arrangement recess 63 has a protruding piece arrangement portion 63a. The protruding piece arrangement portion 63a is a portion in which a protruding piece 81a1 of the impedance adjusting member 80 described later is arranged, and is a portion that is enlarged toward the front side from the other portion in which the recess 63 is arranged. 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 protruding portion 64.

The cylindrical projection 64 projects cylindrically rearward from the rear surface 60r of the dielectric member 60. The cylindrical protruding portion 64 is disposed between the cover 82 of the impedance adjusting member 80 and the inner conductor 91 (see fig. 18). This can prevent the short circuit between the impedance adjusting member 80 and the internal conductor 91 and reduce the impedance at that location.

(impedance adjusting means 80)

The impedance adjusting member 80 is a member for adjusting the impedance of the crimping portion 54. The impedance adjusting member 80 is made of a conductive member. The impedance adjusting member 80 is formed separately from the internal terminal 50 and the external terminal 70, respectively.

As shown in fig. 14, the impedance adjusting member 80 includes a front-rear direction extending portion 81 extending in the front-rear direction (X direction) in a direction along a plane (YZ plane) perpendicular to the front-rear direction, and a cover portion 82 extending in a direction intersecting the plane (YZ plane) perpendicular to the front-rear direction.

The front-rear direction extending portion 81 includes a pair of opposing plate portions 81b opposing each other so as to sandwich the internal terminal 50, and a connecting plate portion 81a connecting the pair of opposing plate portions 81b to each other. A pair of curved portions 81c, in which the plate material is curved, is formed between the pair of opposed plate portions 81b and the connecting plate portion 81a. The curved portion 81c extends in the front-rear direction (X direction).

The cover 82 includes a flat plate portion 83 having a plate thickness direction oriented in a direction (i.e., a front-rear direction) orthogonal to a plane (YZ plane) perpendicular to the front-rear direction, and connecting curved portions 84a, 84b connecting the flat plate portion 83 and the front-rear direction extending portion 81.

The connecting curved portions 84a, 84b have a pair of first curved portions 84b connecting the flat plate portion 83 and the pair of opposed plate portions 81b, and a second curved portion 84a connecting the flat plate portion 83 and the joining plate portion 81a. The first curved portion 84b extends in the cell up-down direction (Y direction), and the second curved portion 84a extends in the cell width direction (Z direction).

The cover 82 is provided with a passage 85 through which the inner conductor 91 passes in the front-rear direction and which opens in a direction perpendicular to the front-rear direction (in the present embodiment, the-Y direction which is the unit lower direction). As a result, the cover 82 has a structure including a pair of side plates 82b disposed so as to sandwich the inner conductor 91 and an upper plate 82a connecting the pair of side plates 82b to each other. The pass-through portion 85 is formed between the pair of side plate portions 82 b. 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 is formed between the pair of first curved portions 84b and the second curved portion 84 a. Thereby, the manufacturing of the impedance adjusting member 80 becomes easy.

The protruding piece 81a1 disposed in the protruding piece disposition portion 63a of the dielectric member 60 is formed on the front-rear direction extending portion 81. This prevents the impedance adjusting member 80 from being arranged in a wrong direction with respect to the dielectric member 60 (from above the cell to the side in the present embodiment). In the present embodiment, the rear portion 60B of the dielectric member 60 has a substantially square cross-sectional shape (cross-sectional shape perpendicular to the front-rear direction).

(external terminal 70)

Fig. 15 is a perspective view of the external terminal 70.

The external terminal 70 is connected to an external conductor 93 (see fig. 12) of the shielded cable 90B, and is a member for housing the internal terminal 50, the dielectric member 60, and the impedance adjusting member 80. The external terminal 70 is manufactured by bending a metal plate material.

As shown in fig. 15, the external terminal 70 includes a main body portion 71 and a first pressure-bonding portion 72.

The main body 71 includes a first plate 71a and a pair of second plates 71b. The first plate portion 71a has a rectangular flat plate shape, and has a plate thickness direction oriented in the unit up-down direction (Y direction). The pair of second plate portions 71b are each rectangular flat plate-like, and have a plate thickness direction oriented in the cell width direction (Z direction). The pair of second plate portions 71b are connected to the first plate portion 71a via curved portions.

The main body 71 further includes a third plate 71c. The third plate portion 71c connects upper ends (+one end in the Y direction) of the pair of second plate portions 71b to each other in the cell width direction. The third plate portion 71c is rectangular flat plate-like, and has a plate thickness direction oriented in the unit up-down 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 with each other. The front end of the third plate portion 71c is formed on the rear side of the front ends of the first plate portion 71a and the pair of second plate portions 71 b.

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 house the internal terminals 50 and the dielectric member 60 therein. The main body 71 has a rear surface 71d in addition to the cylindrical portions 71a, 71b, and 71c.

The rear surface portion 71d is formed to block the inner space of the main body portion 71 from the rear side portion. The rear surface portion 71d also functions to connect the cylindrical portions 71a, 71b, 71c and the first pressure-bonding section 72.

As shown in fig. 15, since the rear surface portion 71d blocks the internal space of the main body portion 71 only in a part thereof, an opening 71e whose internal space is opened rearward is formed in the main body portion 71. Specifically, the rear surface portion 71d blocks the inner space of the main body portion 71 at the lower portion, and the opening 71e is formed at the upper portion of the main body portion 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 so as to be wound around the outer conductor 93 of the shielded cable 90B from the outer circumferential side. Hereinafter, the first pressure-bonding section 72 is sometimes referred to as a connecting section 72.

The external terminal 70 further includes a second crimp portion 73 fixed to the outside of an outer cover 94 (see fig. 12) of the shielded cable 90B. The second crimp portion 73 is formed on the rear side than the first crimp portion 72.

As shown in fig. 18, a conductive sleeve 19 is inserted between the insulating cover 92 and the outer conductor 93 of the shielded cable 90B. The sleeve 19 is cylindrical. A radially outward enlarged diameter portion 19a is formed at the distal end portion of the sleeve 19. By forming the expanded diameter portion 19a, the insulating cover 92 and the inner conductor 91 in the shielded cable 90B are restrained from moving rearward relative to the outer conductor 93 and the outer cover 94. The tip of the sleeve 19 is preferably in contact with an impedance adjusting member 80 (in this embodiment, a cover 82).

As shown in fig. 15 and 19, the body portion 71 has a plurality of protruding portions 74 for contacting the impedance adjusting member 80.

The protruding portion 74 is formed to protrude toward the inner space of the cylindrical portion 71a, 71b, 71c. The protruding portions 74 are formed in the pair of second plate portions 71b and the third plate portion 71c, respectively. Specifically, two protruding portions 74 are formed on each of the pair of second plate portions 71b, and one protruding portion 74 is formed on the third plate portion 71c. A plurality of (five) projections 74 are formed at the same position in the front-rear direction. The protruding portion 74 formed in the second plate portion 71b is in contact with the opposing plate portion 81b of the front-rear direction extending portion 81 of the impedance adjusting member 80, and the protruding portion 74 formed in the third plate portion 71c is in contact with the connecting plate portion 81a of the front-rear direction extending portion 81 of the impedance adjusting member 80. The protrusion 74 is dome-shaped.

< Effect >

Next, among the operational effects of the present embodiment, the operational effects related to the configuration of the terminal unit 14 will be described.

In the present embodiment, as shown in fig. 3, the terminal unit 14 is attached to the shielded cable 90A. As shown in fig. 6 to 8, the shielded cable 90A has two inner conductors 91 and an outer conductor 93 shielding the two inner conductors 91.

As shown in fig. 4, the terminal unit 14 includes two internal terminals 20 connected to two internal conductors 91, a dielectric member 30 holding the two internal terminals 20, and an external terminal 40 connected to an external conductor 93. The external terminal 40 houses the dielectric member 30.

As shown in fig. 5, the internal terminal 20 has a contact portion 21 that contacts a connection object (signal terminal of the mating connector) and a pressure-bonding portion 24 that is pressure-bonded to the internal conductor 91. The contact portion 21 is provided on the front side, and the pressure contact portion 24 is provided on the rear side.

Here, the internal terminal 20 further includes an impedance adjusting portion 25 connected to the pressure-bonding section 24. This can increase the capacitance of the pressure-bonding section 24 and reduce the impedance of the pressure-bonding section 24.

The impedance adjusting section 25 protrudes rearward with respect to the pressure-bonding section 24. This can prevent the impedance of the portion 91e (hereinafter, referred to as the exposed portion 91e of the inner conductor, see fig. 7 and 9) of the inner conductor 91 of the shielded cable 90A, which is exposed from the insulating cover 92 at the rear side from the position where the pressure-bonding section 24 is in pressure-bonding contact.

In the present embodiment, as shown in fig. 9, the impedance adjusting section 25 has a front-rear direction extending section 25b extending in the front-rear direction. In the present embodiment, the radially extending portion 25a is formed between the pressure-bonding section 24 and the longitudinally extending portion 25b, but the radially extending portion 25a may be omitted. Thereby, the radial extension portion 25a can be arranged along the inner conductor 91 or the insulating cover 92 covering the inner conductor 91. As a result, since the length of the impedance adjusting section 25 can be ensured, the impedance matching can be further enhanced.

In addition, in the present embodiment, the impedance adjusting section 25 further has a radial extending section 25a extending in the radial direction. The radial extension portion 25a is located between the crimping portion 24 and the front-rear direction extension portion 25b. Thereby, the crimp portion 24 can be brought close to the insulating cover 92 and the front-rear direction extending portion 25b can be arranged so as to follow the insulating cover 92. As a result, the impedance matching can be further enhanced.

In the present embodiment, the impedance adjusting section 25 is integrally formed with the pressure-bonding section 24. Thus, the internal terminal 20 is easier to manufacture than the case where the impedance adjusting section 25 and the pressure-bonding section 24 are formed separately.

In the present embodiment, the impedance adjusting section 25 extends from the rear end portion of the bottom plate portion 24a of the pressure-bonding section 24. Thus, the internal terminal 20 is easier to manufacture than the impedance adjusting section 25 extending from a portion other than the rear end portion of the bottom plate portion 24 a.

In the present embodiment, as shown in fig. 9, the impedance adjusting section 25 is not configured to circumferentially surround the inner conductor 91. This can prevent the impedance from being excessively lowered, as compared with the structure in which the impedance adjusting section 25 circumferentially surrounds the inner conductor 91.

Further, in the present embodiment, the terminal unit 14 has two internal terminals 20. Then, the impedance adjusting sections 25 of the two internal terminals 20 are not arranged between the two internal conductors 91 (see fig. 6).

When the impedance adjusting sections 25 respectively provided in the two internal terminals 20 are each arranged between the two internal conductors 91, this can be prevented in the present embodiment, although there is a risk of adversely affecting the impedance matching.

In the present embodiment, the dielectric member 30 has a partition 34 (see fig. 6) located between the impedance adjusting sections 25 provided in the two internal terminals 20. This can reduce the impedance as compared with a system without such a partition 34.

In the present embodiment, as shown in fig. 5, an end 25b1 of the impedance adjusting section 25 on the opposite side of the section connected to the pressure bonding section 24 is a carrier cutting section 26. Thus, by adjusting the position of cutting off from the carrier in the process of manufacturing the internal terminal 20, the internal terminal 20 having the impedance adjusting section 25 can be manufactured. Thereby, the internal terminal 20 is easily manufactured.

In the present embodiment, as shown in fig. 6 and 7, the dielectric member 30 circumferentially surrounds the impedance adjusting section 25. This can reduce the impedance of the exposed portion 91e of the inner conductor 91, compared with a case where the dielectric member 30 does not surround the impedance adjusting section 25 in the circumferential direction.

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

In the present embodiment, as shown in fig. 12, the terminal unit 15 is attached to the shielded cable 90B. The shielded cable 90B has an inner conductor 91 and an outer conductor 93 shielding the 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. The external terminal 70 houses the internal terminal 50. The inner terminal 50 includes a crimp portion 54 crimped to the inner conductor 91.

Here, the terminal unit 15 further includes an electrically conductive impedance adjusting member 80 formed separately from the internal terminal 50 and the external terminal 70. The impedance adjusting member 80 includes an adjusting portion 80, and the adjusting portion 80 is disposed between the external terminal 70 and the internal terminal 50 and can adjust the impedance of the pressure-bonding section 54 (see fig. 18). In the present embodiment, the entire impedance adjusting member 80 is an adjusting section 80.

This can suppress an excessive rise in impedance in the pressure-bonding section 54, and can provide the terminal unit 15 with enhanced impedance matching.

In the present embodiment, as shown in fig. 15, the external terminal 70 includes a main body portion 71 that houses the internal terminal 50, and a connection portion 72 that is provided on the rear side with respect to the main body portion 71 and is connected to the external conductor 93. Here, an opening 71e is formed in the body 71 so that the inner space of the body 71 is opened rearward. Thus, the external terminal 70 including the body 71 is easier to manufacture than the case where such an opening 71e is not formed in the body 71.

Further, as shown in fig. 14, the adjusting portion 80 has a cover portion 82. The lid 82 is a portion oriented in a direction intersecting a plane perpendicular to the front-rear direction in the plate thickness direction, and is arranged to narrow the opening 71e (see fig. 17). Thus, the opening 71e of the main body 71 is narrowed, and crosstalk between the internal terminal 50 and other electronic components can be prevented.

In the present embodiment, as shown in fig. 14, the cover 82 includes a pair of side plate portions 82b disposed so as to sandwich the inner conductor 91, and an upper plate portion 82a connecting the pair of side plate portions 82b to each other. Then, a passage portion 85 through which the inner conductor 91 passes in the front-rear direction is formed between the pair of side plate portions 82b, and the passage portion 85 opens in a direction perpendicular to the front-rear direction.

Thus, at the time of assembling the terminal unit 15, the impedance adjusting member 80 can be arranged with respect to the internal conductor 91 from a direction perpendicular to the front-rear direction (in the present embodiment, the unit upper direction). Thereby, the terminal unit 15 is easily assembled.

In the present embodiment, the adjustment portion 80 has a front-rear direction extension portion 81. The front-rear direction extending portion 81 extends in the front-rear direction (X direction) in a direction along a plane (YZ plane) perpendicular to the front-rear direction in the plate thickness direction.

This can strengthen the impedance matching as compared with the case where the adjusting portion 80 does not have the front-rear direction extending portion 81.

In the present embodiment, as shown in fig. 14, the front-rear direction extending portion 81 includes a pair of opposing plate portions 81b opposing each other so as to sandwich the internal terminal 50, and a connecting plate portion 81a connecting the pair of opposing plate portions 81b to each other.

This can strengthen impedance matching as compared with a case where the front-rear direction extending portion 81 is not formed so as to sandwich the internal terminal 50, for example.

In the present embodiment, as shown in fig. 19, three plate portions of the pair of opposing plate portions 81b and the connecting plate portion 81a are in contact with the external terminal 70, respectively. This suppresses the occurrence of resonance noise between the plate portions 81a and 81b and the external terminal 70.

In the present embodiment, the three plate portions 81a and 81b (the pair of opposing plate portions 81b and the connecting plate portion 81 a) are respectively brought into contact with the external terminal 70 via the protruding portion 74 formed in at least one of the front-rear direction extending portion 81 or the external terminal 70.

This makes it possible to maintain a stable contact state, as compared with a case where planar portions are brought into contact with each other. Further, compared with the manner of contact with the cantilever spring via the spring piece or the like, the inductance parasitic to the resistance adjusting member 80 or the external terminal 70 can be reduced.

In the present embodiment, as shown in fig. 19, the three plate portions 81a and 81b are respectively brought into contact with the external terminal 70 via the protruding portion 74 formed in the external terminal 70.

Thus, the protruding portion 74 is formed larger than the manner in which the protruding portion 74 is formed in the front-rear direction extending portion 81 of the impedance adjusting member 80. This is because the external terminal 70 is easily formed larger than the front-rear direction extending portion 81. As a result, the contact between the external terminal 70 and the impedance adjusting member 80 can be stabilized.

In the present embodiment, as shown in fig. 14, the impedance adjusting member 80 is disposed on the outer surface of the dielectric member 60. Then, an arrangement recess 63 in which the impedance adjusting member 80 is arranged is formed on the outer surface of the dielectric member 60.

Thus, the dielectric member 60 and the impedance adjusting member 80 can be effectively accommodated in the external terminal 70.

Modifications 1, 2, and 3 of the terminal unit 15 are explained below.

< modification 1: terminal unit 115 >)

Next, with reference to fig. 20 to 26, a terminal unit 115 according to modification 1 will be described.

The components and portions denoted by the same reference numerals as those of the above embodiments in the drawings have substantially the same configuration as those of the above embodiments.

As shown in fig. 20, the terminal unit 115 according to modification 1 includes an internal terminal 150, a dielectric member 160, an external terminal 170, an impedance adjusting member 180, and a sleeve 19.

(internal terminal 150)

The inner terminal 150 is connected to the inner conductor 91 of the shielded cable 90B.

(dielectric part 160)

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

As shown in fig. 22, the arrangement recess 63 in which the impedance adjusting member 180 is arranged is formed on the outer surface of the dielectric member 160.

The placement recess 63 is formed in the rear portion 60B of the dielectric member 160. Thus, 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 periphery of the upper surface, the pair of side surfaces (surfaces facing the outside in the width direction), and the lower surface among the outer surfaces of the dielectric member 160. However, in relation to the shape of the impedance adjusting member 180 of the present embodiment, a portion of the arrangement recess 63 corresponding to the lower surface of the dielectric member 160 may be omitted.

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

The enlarged recess 65 has a wide portion 65a and a narrow portion 65b. The wide portion 65a has a larger width than the narrow portion 65b. The narrow portion 65b connects the wide portion 65a and the arrangement 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 placement recess 63. A step is formed at the boundary between the wide portion 65a and the narrow portion 65b of the enlarged recess 65.

When the wide portion 65a of the enlarged recess 65 is set as a reference, the narrow portion 65b of the enlarged recess 65 and the placement recess 63 are recessed downward. The recess functions as avoidance recesses 63, 65b that allow deformation of the elastic contact portion 87 of the impedance adjusting member 180 described later.

The dielectric member 160 has a cylindrical protruding portion 64.

The cylindrical projection 64 is cylindrical (specifically, cylindrical) and projects rearward from the rear surface 60r of the dielectric member 160. The cylindrical protruding portion 64 surrounds the inner conductor 91. This prevents the internal conductor 91 from being shorted with other components (the impedance adjusting member 180 in the present embodiment) and reduces the impedance at that location.

As shown in fig. 26, a part 64a of the tubular projection 64 on the distal end side is disposed in the sleeve 19. The portion of the cylindrical protruding portion 64 disposed in the sleeve 19 is referred to as an entrance portion 64a.

The front-rear dimension of the inlet portion 64a is preferably 1/3 or more, more preferably 1/2 or more of the front-rear dimension of the cylindrical protruding portion 64. The front-rear dimension of the inlet 64a is, for example, 0.2mm or more.

(impedance adjusting means 180)

As shown in fig. 22, the impedance adjusting member 180 includes a front-rear direction extending portion 81 extending in the front-rear direction (X direction) with the plate thickness direction oriented in a direction along a plane (YZ plane) perpendicular to the front-rear direction, and a cover portion 82 oriented in a direction intersecting the plane (YZ plane) perpendicular to the front-rear direction.

The front-rear direction extending portion 81 includes a pair of opposing plate portions 81b opposing each other so as to sandwich the internal terminal 150, and a connecting plate portion 81a connecting the pair of opposing plate portions 81b to each other. A pair of curved portions 81c, in which the plate material is curved, is formed between the pair of opposed plate portions 81b and the connecting plate portion 81a. The curved portion 81c extends in the front-rear direction (X direction).

The cover 82 includes flat plate portions 83b and 83b that extend in the front-rear direction in the plate thickness direction, and connecting curved portions 84b and 84b that connect the flat plate portions 83b and the front-rear direction extending portion 81.

The connecting curved portions 84b, 84b have a pair of first curved portions 84b, 84b connecting the flat plate portions 83b, 83b and the pair of opposing plate portions 81 b. The first curved portion 84b extends in the up-down direction (Y direction).

The flat plate portions 83b, 83b have a pair of separation portions 83b, 83b separated from each other. The pair of separation portions 83b, 83b are connected to the pair of first curved portions 84b, respectively.

In other words, the cover 82 has a pair of side plate portions 82b disposed so as to sandwich the inner conductor 91. The cover 82 does not have a portion (upper plate portion) connecting the pair of side plates 82b to each other. Each side plate portion 82b is constituted by a first curved portion 84b and a separation portion 83b.

Thus, the lid 82 is provided with a passage 85 through which the inner conductor 91 and the tubular projection 64 pass in the front-rear direction and which opens in a direction perpendicular to the front-rear direction (in the present embodiment, the downward-Y direction). The pass-through portion 85 is a space formed between the pair of side plate portions 82b.

The width dimension of the separation portion 83b is large at the upper portion of the cover 82, and the width dimension of the separation portion 83b is small at the lower portion of the cover 82. Thus, the width dimension of the space between the pair of side plate portions 82b is narrow at the upper portion of the cover portion 82, and the width dimension of the space between the pair of side plate portions 82b is wide at the lower portion of the cover portion 82.

A protruding piece 81a1 disposed in the enlarged recess 65 of the dielectric member 160 is formed on the front-rear direction extending portion 81. This prevents the impedance adjusting member 180 from being arranged in a wrong direction (from the upper side of the cell in the present embodiment) with respect to the dielectric member 160.

The tip portion of the protruding piece 81a1 has a larger width than the base portion 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. Thus, the impedance adjusting member 180 and the dielectric member 160 are locked to each other in the front-rear direction (axial direction).

The impedance adjusting member 180 has a biasing portion 86 that biases the sleeve 19 toward the impedance adjusting member 180.

The biasing portion 86 is formed at the rear end of the impedance adjusting member 180. The urging portion 86 includes 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 urging pieces 86b extending from the curved portion 86 a. The pair of urging pieces 86b each face the plate thickness direction in the front-rear direction. The pair of urging pieces 86b extend from the curved portion 86a in the width direction outward and downward in the oblique direction. Thus, the pair of urging pieces 86b extend along the outer peripheral surface of the sleeve 19. The sleeve 19 is sandwiched between the pair of urging portions 86 in the width direction. At this time, the pair of urging pieces 86b are in an elastically deformed state.

As shown in fig. 23, the enlarged diameter portion 19a of the sleeve 19 is sandwiched between the pair of urging pieces 86b and the pair of side plate portions 82b in the front-rear direction. In other words, the pair of urging pieces 86b of the urging portion 86 urge the enlarged diameter portion 19a of the sleeve 19 toward the cover portion 82 of the impedance adjusting member 180. Thus, the impedance adjusting member 180 and the sleeve 19 are engaged with each other in the front-rear direction (axial direction). In other words, the urging portion 86 restricts rearward movement of the sleeve 19 relative to the dielectric member 160. Hereinafter, the urging portion 86 may be referred to as a restricting portion 86.

The urging portion 86 is a portion in which the plate 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 urging portion 86 is also referred to as a cover portion 86.

The impedance adjusting member 180 has an elastic contact portion 87 that elastically contacts the protruding portion 74 of the external terminal 170.

Specifically, the impedance adjusting member 180 is formed with a through hole, and the elastic contact portion 87 is formed so as to divide the through hole. Thereby, the elastic contact portion 87 becomes a double-arm spring. The elastic contact portion 87 extends in the front-rear direction. The elastic contact portion 87 is formed in the connecting plate portion 81a. The elastic contact portion 87 is located on the same plane as the plate portion (the connecting plate portion 81 a) where the through hole is formed. In other words, the elastic contact portion 87 maintains a flat plate surface of the plate portion forming the through hole. The elastic contact portion 87 is formed at a position corresponding to the avoidance concave portions 63, 65b of the dielectric member 160. Thereby, the elastic contact portion 87 is allowed to deform toward the dielectric member 160.

(external terminal 170)

The external terminal 170 is connected to the external conductor 93 of the shielded cable 90B. Further, the external terminal 170 houses the internal terminal 150, the dielectric member 160, and the impedance adjusting member 180. The external terminal 170 is manufactured by bending a metal plate material or the like.

The external terminal 170 includes a main body 71.

As shown in fig. 20, the main body 71 includes a first plate 71a and a pair of second plates 71b. The first plate portion 71a has a rectangular flat plate shape, and has a plate thickness direction oriented in the unit up-down direction (Y direction). The pair of second plate portions 71b are each rectangular flat plate-like, and have a plate thickness direction oriented in the cell width direction (Z direction). The pair of second plate portions 71b are connected to the first plate portion 71a via curved portions.

The main body 71 further includes a third plate 71c. The third plate portion 71c connects upper ends (+one end in the Y direction) of the pair of second plate portions 71b to each other in the cell width direction. The third plate portion 71c is rectangular flat plate-like, and has a plate thickness direction oriented in the unit up-down 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 with each other.

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

The external terminal 170 further includes a first pressure-bonding section 72.

The first crimp portion 72 is crimped from the outside with respect to the outer conductor 93 of the shielded cable 90B.

Further, the external terminal 170 has a second crimp portion 73.

The second crimp 73 is crimped from the outside with respect to the outside cover 94 of the shielded cable 90B. The second pressure-bonding section 73 is formed on the rear side than the first pressure-bonding section 72. The second pressure-bonding section 73 has a larger diameter of the object to be pressure-bonded than the first pressure-bonding section 72.

As shown in fig. 24, the main body 71 has a plurality of projections 74 that contact the impedance adjusting member 180.

The protruding portion 74 is a shape protruding toward the inside of the main body portion 71, specifically, a dome shape.

The protruding portions 74 are formed in the pair of second plate portions 71b and the third plate portion 71c, respectively. Specifically, two protruding portions 74 are formed on the pair of second plate portions 71b and the third plate portion 71c, respectively. The two projections 74 are juxtaposed in the front-rear direction. The protruding portion 74 formed in the second plate portion 71b is in contact with the opposing plate portion 81b of the front-rear direction extending portion 81 of the impedance adjusting member 180, and the protruding portion 74 formed in the third plate portion 71c is in contact with the connecting plate portion 81a of the front-rear direction extending portion 81 of the impedance adjusting member 180. The protruding portion 74 formed in the third plate portion 71c is in contact with the elastic contact portion 87 formed in the connecting plate portion 81 a.

(sleeve 19)

As shown in fig. 25, the sleeve 19 is a rolled product.

The sleeve 19 is formed of a conductive member. The sleeve 19 is cylindrical. Sleeve 19 is interposed between insulating cover 92 and outer conductor 93 of shielded electrical cable 90B. Thus, the sleeve 19 is disposed outside the insulating cover 92, and functions to maintain the shape of the insulating cover 92.

The sleeve 19 has an enlarged diameter portion 19a formed at the distal end portion of the sleeve 19. The diameter of the enlarged portion 19a is enlarged as compared with the other portions. The enlarged diameter portion 19a is sandwiched between the cover 82 and the biasing portion 86 of the impedance adjusting member 180 in the front-rear direction (see fig. 23). Thereby, the sleeve 19 is in press contact with the impedance adjusting member 180.

The sleeve 19 has a reduced diameter portion 19b formed at the rear end portion of the sleeve 19. In the reduced diameter portion 19b, the outer diameter decreases as it goes rearward. Thereby, the operation of inserting the sleeve 19 between the insulating cover 92 and the outer conductor 93 of the shielded cable 90B becomes easy.

< Effect >

The operational effects of modification 1 will be described.

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. The external terminal 170 receives the internal terminal 150. The inner terminal 150 includes the crimp portion 54 crimped to the inner conductor 91.

Here, the terminal unit 115 further includes an electrically conductive impedance adjusting member 180 formed separately from the internal terminal 150 and the external terminal 170. The impedance adjusting member 180 includes an adjusting portion 180, and the adjusting portion 180 is disposed between the external terminal 170 and the internal terminal 150 and can adjust the impedance of the pressure-bonding section 54. In modification 1, the entire impedance adjusting member 180 is an adjusting unit 180.

This can suppress an excessive rise in impedance in the pressure-bonding section 54, and can provide the terminal unit 115 with enhanced impedance matching.

In modification 1, the terminal unit 115 includes a conductive sleeve 19 disposed outside the insulating cover 92 covering the inner conductor 91. Thereby, the change in the cross-sectional shape of the insulating cover 92 covering the inner conductor 91 is suppressed, and as a result, the impedance remains unchanged.

That is, since the external terminal 170 is crimped to the shielded cable 90B, the shielded cable 90B may be deformed into an oval shape or the like due to the crimp. The sleeve 19 inhibits this.

In modification 1, the sleeve 19 is in contact with the impedance adjusting member 180, as in the above embodiment. This suppresses resonance that causes noise.

In modification 1, the same effects as those of the above embodiment are achieved, and the description thereof is omitted. The following description will be made on the operational effects based on the configuration different from the above-described embodiment.

In modification 1, the sleeve 19 is in press contact with the impedance adjusting member 180. Thus, the sleeve 19 can be prevented from coming into contact with the impedance adjusting member 180 by manufacturing tolerances of the sleeve 19, vibration at the time of use, and the like.

In modification 1, the impedance adjusting member 180 includes a biasing portion 86 that biases the sleeve 19 toward the impedance adjusting member 180. Thus, the impedance adjusting member 180 can be brought into press contact with the sleeve 19 without increasing the number of components.

In modification 1, the cover 82 includes a side plate 82b formed in a cantilever shape. As a result, the cover 82 can be formed by bending without rolling, and as a result, the manufacturing cost can be reduced.

As shown in fig. 23, the sleeve 19 is in contact with the cantilever-shaped side plate 82b. This suppresses resonance that causes noise.

In modification 1, as shown in fig. 26, the dielectric member 160 has an entry portion 64a disposed in the sleeve 19. This can suppress an increase in impedance of the portion of the inner conductor 91 exposed from the insulating cover 92.

When specifically described, it is difficult to fix the length of the portion of the inner conductor 91 exposed from the insulating cover 92. When the exposed portion is long, the air layer formed between the sleeve 19 and the inner conductor 91 also becomes long, and the impedance increases in this portion.

Therefore, in modification 1, since a part (the inlet portion 64 a) of the dielectric member 160 is disposed in the sleeve 19, formation of a large air layer between the sleeve 19 and the inner conductor 91 can be suppressed. As a result, an increase in impedance of the portion of the inner conductor 91 exposed from the insulating cover 92 can be suppressed.

The inlet 64a is formed in a tubular shape so as to surround the inner conductor 91. This can improve the effect of suppressing the rise in impedance.

In modification 1, as shown in fig. 22, the impedance adjusting member 180 has an elastic contact portion 87 that elastically contacts the protruding portion 74 formed on the external terminal 170. Thus, the assembling property of the external terminal 170 in which the protruding portion 74 is formed is improved. That is, the operation of inserting the dielectric member 160 in a state where the impedance adjusting member 180 is attached to the main body 71 of the external terminal 170 is facilitated.

The elastic contact portion 87 is a double-arm spring formed so as to divide the through hole of the impedance adjusting member 180. This can reduce the inductance that is caused by the impedance adjusting member 180 or the external terminal 170, compared with the case where the elastic contact portion 87 is a cantilever spring.

In modification 1, as shown in fig. 23, the sleeve 19 and the impedance adjusting member 180 are engaged with each other in the front-rear direction, and the impedance adjusting member 180 and the dielectric member 160 are engaged with each other in the front-rear direction. This prevents the sleeve 19, the impedance adjusting member 180, and the dielectric member 160 from being separated by an external force (in particular, a force that stretches the shielded cable 90B when in use).

< modification 2: terminal unit 215 >)

Next, with reference to fig. 27 to 30, a terminal unit 215 according to modification 2 will be described.

In addition, the same reference numerals are given to the same components or portions having the same configurations as those of the foregoing embodiment or modification, and the description thereof is 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 adjusting member 280, and the sleeve 19.

(assembly sequence)

The order of assembly of the terminal units 215 is substantially as follows.

(1) The internal terminal 250 is crimped to the internal conductor 91 of the shielded cable 90B, and the dielectric member 260 is assembled to house the internal terminal 250 in the dielectric member 260.

(2) An impedance adjusting member 280 is mounted on the dielectric member 260.

(3) The dielectric member 260 is inserted 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 from behind and obliquely above the main body 71 of the external terminal 270.

(4) The first crimp portion 72 of the external terminal 270 is crimped to the external conductor 93 of the shielded cable 90B, and the second crimp portion 73 is crimped to the outer cover 94 of the shielded cable 90B.

The main points that differ from the above embodiment and modification 1 are: the direction of inserting the dielectric member 260 into the main body portion 71 of the external terminal 270 is not a point from the front but from the rear.

(dielectric part 260)

In modification 1 (fig. 22), the wide portion 65a of the enlarged recess 65 is located above the arrangement recess 63, and in modification 2 (fig. 29), the wide portion 65a is located on the same plane as the arrangement recess 63. Thus, in modification 2, the entire enlarged recess 65 is located on the same plane as the arrangement recess 63. This is associated with the dielectric member 260 having no elastic contact portion (refer to the elastic contact portion 87 of fig. 22).

As shown in fig. 29, the protruding amount of the cylindrical protruding portion 64 of the dielectric member 260 is smaller than that of the cylindrical protruding portion 64 of modification 1 (see fig. 22). Thus, although not shown, although a part of the front end side of the tubular projection 64 (the inlet 64 a) is disposed in the sleeve 19, the front-rear dimension of the inlet 64a is very small (about 50 μm).

Grooves 69 corresponding to the protruding portions 74 of the external terminals 270 are formed in the dielectric member 260. In this way, in the step of inserting the dielectric member 260 into the main body 71 of the external terminal 270 from the rear side, the workability is improved. The groove 69 is a groove extending in the front-rear direction. The grooves 69 are formed on the upper surface and the pair of side surfaces of the intermediate portion 60A (the general portion) of the dielectric member 260, respectively.

(impedance adjusting means 280)

The impedance adjusting member 280 does not have an elastic contact portion (refer to the elastic contact portion 87 of fig. 22) that elastically contacts the protruding portion 74 of the external terminal 270.

The impedance adjusting member 280 has a protrusion 81b1 protruding toward the main body 71 of the external terminal 270. The protruding portions 81b1 are formed at the lower ends of the pair of opposing plate portions 81b, respectively. Thereby, a stable contact state of the impedance adjusting member 280 and the external terminal 270 is obtained. The two protrusions 81b1 are formed on the opposing plate 81 b. The protrusion 81b1 has a shape of an arc protruding downward.

(external terminal 270)

As shown in fig. 27, the main body portion 71 of the external terminal 270 includes a first plate portion 71a, a pair of second plate portions 71b, and a third plate portion 71c, but as shown in fig. 30, the rear end of the third plate portion 71c is formed in front of the rear end of the pair of second plate portions 71 b. This makes it possible to insert the dielectric member 260 into the main body 71 from the rear.

The portion behind the rear end of the third plate portion 71c is shielded by a part of the impedance adjusting member 280 (the connecting plate portion 81a and the curved portion 86a of the urging portion 86).

As shown in fig. 30, the main body 71 has a plurality of projections 74 that contact the impedance adjusting member 280.

The protruding portion 74 is a shape protruding toward the inside of the main body portion 71, specifically, a dome shape. The protruding portions 74 are formed in the pair of second plate portions 71b and the third plate portion 71c, respectively. Specifically, one protruding portion 74 is formed on each of the pair of second plate portions 71b and the third plate portion 71c.

Further, the main body 71 has an elastic support portion 75 that elastically supports the protruding portion 74. The elastic support portion 75 is provided corresponding to each of the plurality of protruding portions 74. The elastic support portion 75 is a double-arm spring. Specifically, a through hole is formed in a plate portion constituting the main body portion 71, and the elastic support portion 75 and the protruding portion 74 are formed so as to divide the through hole. The elastic support portion 75 is formed forward and backward with respect to the protruding portion 74. The portion of the elastic support portion 75 located on the front side of the protruding portion 74 is shorter than the portion located on the rear side of the protruding portion 74.

< Effect >

The operational effects of modification 2 will be described.

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. The external terminal 270 receives the internal terminal 250. The inner terminal 250 includes the crimp portion 54 crimped to the inner conductor 91.

Here, the terminal unit 215 further includes a conductive impedance adjusting member 280 formed separately from the internal terminal 250 and the external terminal 270. The impedance adjusting member 280 includes an adjusting portion 280 that is disposed between the external terminal 270 and the internal terminal 250 and that can adjust the impedance of the pressure-bonding section 54. In modification 2, the entire impedance adjusting member 280 is an adjusting portion 280.

Therefore, the terminal unit 215 having enhanced impedance matching can be obtained while suppressing excessive rise of impedance in the pressure-bonding section 54.

In modification 2, the same operational effects as those of the above-described embodiment and modification 1 are achieved, but the description thereof is omitted. The following description will be made on the operational effects based on the configurations different from those of the above-described embodiment and modification 1.

In modification 2, as shown in fig. 30, the external terminal 270 has an elastic support portion 75 that elastically supports the protruding portion 74. This makes it easier to achieve a structure that ensures the assemblability of the terminal unit 215 and obtains a desired contact pressure than in the case where the elastic support portion 75 is formed in the impedance adjusting member 280.

The elastic support portion 75 is a double-arm spring formed so as to divide the through hole formed in the impedance adjusting member 280. This can reduce the inductance that is caused by the impedance adjusting member 280 or the external terminal 270, compared with the case where the elastic support portion 75 is a cantilever spring.

In modification 2, the direction in which the dielectric member 260 is inserted into the main body 71 of the external terminal 270 is from the rear. Thus, the manufacturing process of the terminal unit 215 is simple.

In modification 2, the rear end of the third plate portion 71c of the main body portion 71 of the external terminal 270 is formed in front of the rear ends of the pair of second plate portions 71 b. This makes it possible to insert the dielectric member 260 into the main body 71 from the rear side, or to improve workability.

< modification 3: terminal unit 315 >)

Next, with reference to fig. 31 to 37, a terminal unit 315 according to modification 3 will be described.

In addition, the same reference numerals are given to the components and portions having the same configuration as those of the foregoing embodiment or modification, 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 adjusting member 380, and a sleeve 319.

(assembly sequence)

The order of assembly of the terminal units 315 is substantially as follows.

(1) The inner terminal 350 is crimped to the inner conductor 91 of the shielded cable 90B, and the dielectric member 360 is assembled to house the inner terminal 350 in the dielectric member 360.

(2) An impedance adjusting member 380 is mounted on the dielectric member 360 and the first crimp 89 is crimped to the outer conductor 93 of the shielded cable 90B.

(3) The dielectric member 360 is inserted 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 from behind and obliquely above the main body portion 71 of the external terminal 370.

(4) The second crimp portion 73 of the external terminal 370 is crimped to the outer cover 94 of the shielded cable 90B.

As shown in fig. 33, the impedance adjusting member 380 includes a front-rear direction extending portion 81 and a cover portion 82.

The front-rear direction extending portion 81 has a pair of opposed plate portions 81b and a connecting plate portion 81a.

The cover 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 connecting the flat plate portions 83b, 83b and the pair of opposite plate portions 81 b. The first curved portion 84b extends in the unit up-down direction (Y direction).

The flat plate portions 83b, 83b have a pair of separation portions 83b connected to a pair of first curved portions 84b, respectively. The pair of separation portions 83b are separated from each other.

In other words, the cover 82 has a pair of side plate portions 82b arranged to sandwich the inner conductor 91. The cover 82 does not have an upper plate portion (see the upper plate portion 82a of fig. 14) that connects the pair of side plate portions 82b to each other. Each side plate portion 82b is constituted by a first curved portion 84b and a separation portion 83b.

Thus, the lid 82 is provided with a passage 85 through which the inner conductor 91 and the tubular projection 64 pass in the front-rear direction and which opens in a direction perpendicular to the front-rear direction (in modification 3, the-Y direction in the cell lower direction). The pass-through portion 85 is a space formed between the pair of side plate portions 82 b.

As shown in fig. 36, the width of the separation portion 83b is large at the upper portion of the cover 82, and the width of the separation portion 83b is small at the lower portion of the cover 82. Thus, the width dimension of the space between the pair of side plate portions 82b is narrow at the upper portion of the cover portion 82, and the width dimension of the space between the pair of side plate portions 82b is wide at the lower portion of the cover portion 82.

The protruding piece 81a1 disposed in the protruding piece disposition portion 63a of the dielectric member 360 is formed on the front-rear direction extending portion 81.

The impedance adjusting member 380 has a biasing portion 86 that biases the sleeve 319 toward the impedance adjusting member 380.

The urging portion 86 has a pair of curved portions 86c and a pair of urging pieces 86d. The pair of urging plates 86d each face the plate thickness direction in the cell width direction. A pair of curved portions 86c are formed on the outer sides 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 urging pieces 86d and the pair of side plate portions 82b in the front-rear direction. In other words, the urging portion 86 having the pair of urging pieces 86d urges the expanded diameter portion 19a of the sleeve 319 toward the cover portion 82 of the impedance adjusting member 380. Thereby, the impedance adjusting member 380 and the sleeve 319 are engaged with each other in the front-rear direction (axial direction).

Further, the sleeve 319 is sandwiched between the pair of urging pieces 86d in the width direction. As a result, the pair of biasing pieces 86d are elastically deformed. Thereby, the contact of the impedance adjusting member 380 with the sleeve 319 becomes elastic contact.

The front-rear dimension of the urging piece 86d becomes smaller as it goes below the unit as the mounting direction of the impedance adjusting member 380.

Specifically, the rear plate end of the urging plate 86d extends in a direction inclined with respect to the cell lower direction, and the front plate end of the urging plate 86d extends in a direction parallel with respect to the cell lower direction. The front plate end of the urging piece 86d contacts the enlarged diameter portion 19a of the sleeve 319.

The impedance adjusting member 380 has a first crimp portion 89.

The first crimp portion 89 is crimped with the outer conductor 93 of the shielded cable 90B. Specifically, the first crimp portion 89 is crimped to the outer conductor 93 located outside the sleeve 319.

The upper portion of the first pressure-bonding section 89 is located below the connecting plate section 81 a. The upper portion of the first pressure-bonding section 89 and the connecting plate section 81a are connected obliquely by the connecting section 88.

The external terminal 370 is a member connected to the external conductor 93 of the shielded cable 90B and housing the internal terminal 350, the dielectric member 360, and the impedance adjusting member 380. Specifically, the external terminal 370 is (electrically) connected to the external conductor 93 of the shielded cable 90B via the impedance adjusting member 380. The external terminal 370 does not have a first crimp portion (refer to the first crimp portion 72 of fig. 17) connected to the external 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 portion 71c is formed at the rear side of the front ends of the first plate portion 71a and the pair of second plate portions 71 b.

The rear end of the third plate portion 71c is formed in front of the rear end of the second plate portion 71 b. Thus, the workability of the step of inserting the dielectric member 360 into the main body 71 from the rear is improved.

Further, the external terminal 370 has a second crimp portion 73.

The second crimp portion 73 is crimped to the outside of the outside cover 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 protruding portions 74 that contact the impedance adjusting member 380.

Further, the main body 71 has an elastic support portion 75 that elastically supports the protruding portion 74. The elastic support portions 75 are provided corresponding to the plurality of protruding portions 74, respectively. The elastic support portion 75 is a double-arm spring. Specifically, a through hole is formed in a plate portion constituting the main body portion 71, and the elastic support portion 75 and the protruding portion 74 are formed so as to divide the through hole. The elastic support portion 75 is formed in front and rear with respect to the protruding portion 74.

Regarding the elastic support portion 75 formed in the second plate portion 71b, a portion of the elastic support portion 75 located on the front side of the protruding portion 74 is shorter than a portion located on the rear side of the protruding portion 74.

On the other hand, regarding the elastic support portion 75 formed in the third plate portion 71c, a portion of the elastic support portion 75 located on the front side of the protruding portion 74 is longer than a portion located on the rear side of the protruding portion 74. Thus, the protruding portion 74 formed in the third plate portion 71c can be disposed rearward. In particular, in modification 3, since the rear end of the third plate portion 71c is formed in front of the rear end of the second plate portion 71b, the protruding portion 74 formed in the third plate portion 71c is easily disposed in front. This configuration is effective.

(sleeve 319)

As shown in fig. 33, the sleeve 319 is a cut product, a die cast product, or an injection molded product.

The sleeve 319 has an enlarged diameter portion 19a formed at a distal end portion of the sleeve 319. The diameter of the enlarged portion 19a is enlarged as compared with the other portions. The enlarged diameter portion 19a is sandwiched between the cover 82 and the biasing portion 86 of the impedance adjusting member 380 in the front-rear direction. Thereby, the sleeve 319 is in pressing contact with the impedance adjusting member 380.

The sleeve 319 has a reduced diameter portion 19b formed at a rear end portion of the sleeve 319. In the reduced diameter portion 19b, the outer diameter decreases as it goes rearward. Thereby, the operation of inserting the sleeve 319 between the insulating cover 92 and the outer conductor 93 of the shielded cable 90B becomes easy.

< Effect >

The operational effects of modification 3 will be described.

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. The external terminal 370 receives the internal terminal 350. The inner terminal 350 includes the crimp portion 54 crimped to the inner conductor 91.

Here, the terminal unit 315 further includes an impedance adjusting member 380 having conductivity and formed separately from the internal terminal 350 and the external terminal 370. The impedance adjusting member 380 has an adjusting portion 380a, and the adjusting portion 380a is disposed between the external terminal 370 and the internal terminal 350 and can adjust the position of the impedance of the pressure-bonding section 54. The adjusting portion 380a is a part of the impedance adjusting member 380.

This can suppress an excessive rise in impedance in the pressure-bonding section 54, and can strengthen the impedance-matched terminal unit 315.

In addition, except for modification 3, the same operational effects as those of the above-described embodiments, modifications 1, and modifications 2 are obtained, but the description thereof is omitted. The following describes the operational effects based on the configurations different from those of the above-described embodiment, modification 1, and modification 2.

However, as in modification 2 (fig. 27 to 30), in the case where the external terminal 270 has the first pressure-bonding section 72, it is generally necessary to form the step 79 (see fig. 30) between the main body 71 and the first pressure-bonding section 72 in advance. However, the stepped portion 79 makes it difficult to insert the dielectric member 260 into the main body portion 71 from the rear.

Here, in modification 3, the impedance adjusting member 380 has the first pressure-bonding section 89 pressure-bonded to the outer conductor 93 (the portion not folded outward of the outer cover 94), and the outer terminal 370 does not have the first pressure-bonding section pressure-bonded to the outer conductor 93 (the portion not folded outward of the outer cover 94). Thereby, the dielectric member 360 is easily inserted from the rear of the main body 71.

Supplementary explanation of the above embodiment

In the above embodiment, an example in which the dielectric member is constituted by the first member and the second member which are formed separately will be described. However, the dielectric member of the present disclosure is not limited thereto, and may be integrally formed as a whole.

In the above embodiment, an example in which the terminal unit is housed in the housing 12 to constitute a part of the connector 100 is described. However, the terminal unit of the present disclosure is not limited thereto.

In the above embodiment, the case where the sleeves 19 and 319 are inserted between the insulating cover 92 and the outer conductor 93 of the shielded cable 90B is described. However, the sleeve of the present disclosure is not limited thereto. For example, the outer conductor of the shielded cable is of a two-layer construction of foil and braid, and a sleeve may also be interposed between the foil and braid. In this case, the sleeve is also said to be disposed outside the insulating cover 92.

Description of the reference numerals

12 shell

15. 115, 215, 315 terminal unit

19. 319 sleeve

50. 150, 250, 350 internal terminals

51. Contact portion

54. Crimping part

60. 160, 260, 360 dielectric part

63 is provided with a concave part

63. 65b avoidance concave portion

63a protruding piece arrangement part

64. Cylindrical protruding part

64a inlet portion

65. Enlarged recess

65a wide width portion

65b narrow width portion

69. Groove(s)

70. 170, 270, 370 external terminals

71. Main body part

71e opening

72 outer conductor connecting portion (first crimp portion)

73. Second press-connection part

74. Protruding part

75. Elastic support part

80. 180, 280 impedance adjusting component (adjusting part)

81. Front-rear direction extending portion

81a connecting plate portion

81b opposite plate portion

82. Cover part

82a upper plate portion

82b side plate portion

85. Through part

86. Force application part

87. Elastic contact part

89. First press-connection part

90B shielded cable

91. Inner conductor

92. Insulating covering

93. Outer conductor

94. Outside covering piece

100. Connector with a plurality of connectors

380. Impedance adjusting member

380a adjustment portion.

Claims

1. A terminal unit is mounted to a shielded cable having one or more inner conductors and an outer conductor shielding the one or more inner conductors,

the terminal unit is provided with:

one or more internal terminals connected to the one or more internal conductors;

a dielectric member holding the internal terminal;

an external terminal connected to the external conductor and accommodating the internal terminal; and

an electroconductive impedance adjusting member formed separately from the internal terminal and the external terminal,

the inner terminal includes a crimp portion crimped to the inner conductor,

the impedance adjusting member has an adjusting portion that is disposed between the external terminal and the internal terminal and is capable of adjusting a position of an impedance of the pressure-bonding section.

2. The terminal unit according to claim 1, wherein,

the external terminal has a main body portion for receiving the internal terminal,

an opening is formed in the main body portion such that an inner space of the main body portion is opened to the rear side,

The adjustment portion has a cover portion that faces a plate thickness direction in a direction intersecting a plane perpendicular to the front-rear direction and is configured to narrow the opening.

3. The terminal unit according to claim 2, wherein,

the cover portion has:

a pair of side plate portions configured to sandwich the inner conductor; and

an upper plate portion connecting the pair of side plate portions to each other,

a passage portion through which the inner conductor passes in the front-rear direction is formed between the pair of side plate portions, and the passage portion opens in a direction perpendicular to the front-rear direction.

4. The terminal unit according to claim 1 or 2, wherein,

the adjustment portion has a front-rear direction extending portion that extends in the front-rear direction with a plate thickness direction oriented in a direction along a plane perpendicular to the front-rear direction.

5. The terminal unit according to claim 4, wherein,

the front-rear direction extending portion has:

a pair of opposing plate portions opposing each other so as to sandwich the internal terminal; and

and a connecting plate portion connecting the pair of opposed plate portions to each other.

6. The terminal unit according to claim 5, wherein,

the three plate portions of the pair of opposing plate portions and the connecting plate portion are respectively in contact with the external terminals.

7. The terminal unit according to claim 6, wherein,

the contact of the three plate portions with the external terminals is achieved via a projection formed at least one of the front-rear direction extending portion or the external terminals, respectively.

8. The terminal unit according to claim 6, wherein,

the contact of the three plate portions with the external terminals is achieved via protruding portions formed on the external terminals, respectively.

9. The terminal unit according to claim 1 or 2, wherein,

the impedance adjusting member is electrically connected in contact with the external terminal.

10. The terminal unit according to claim 9, wherein,

the contact of the impedance adjusting member with the external terminal is achieved via a protrusion formed at least one of the impedance adjusting member or the external terminal.

11. The terminal unit according to claim 1 or 2, wherein,

the impedance adjusting member is disposed on an outer surface of the dielectric member,

a placement recess for placing the impedance adjusting member is formed on an outer surface of the dielectric member.

12. The terminal unit according to claim 1 or 2, wherein,

the terminal unit includes a conductive sleeve disposed outside an insulating cover covering the inner conductor,

The sleeve is in contact with the impedance adjusting member.

13. The terminal unit according to claim 12, wherein,

the sleeve is formed as a cut product, a die cast product, or an injection molded body.

14. The terminal unit according to claim 12, wherein,

the sleeve is in pressing contact with the impedance adjusting member.

15. The terminal unit according to claim 14, wherein,

the impedance adjusting member has a biasing portion that biases the sleeve toward the impedance adjusting member.

16. The terminal unit according to claim 12, wherein,

the adjusting part has a cover part which faces the plate thickness direction in a direction crossing a plane perpendicular to the front-rear direction,

the cover part has a side plate part formed in a cantilever shape,

the sleeve is in contact with the side plate portion.

17. The terminal unit according to claim 1, wherein,

the dielectric member has an entry portion disposed within the sleeve.

18. The terminal unit according to claim 17, wherein,

The inlet portion is formed in a cylindrical shape so as to surround the inner conductor.

19. The terminal unit according to claim 10, wherein,

the protrusion is formed at the external terminal,

the impedance adjusting member has an elastic contact portion that elastically contacts the protruding portion.

20. The terminal unit according to claim 19, wherein,

the impedance adjusting member has a hole portion,

the elastic contact portion is a double-arm spring formed so as to divide the hole portion.

21. The terminal unit according to claim 1, wherein,

the sleeve and the impedance adjusting member are engaged with each other in the front-rear direction,

the impedance adjusting member and the dielectric member are engaged with each other in the front-rear direction.

22. The terminal unit according to claim 1, wherein,

the impedance adjusting member has a first crimp portion crimped to the outer conductor,

the external terminal has:

a main body portion into which the dielectric member can be inserted from the rear; and

and a second crimp portion formed at a rear side of the main body portion and crimped to the shielded cable.

23. The terminal unit according to claim 10, wherein,

the protrusion is formed at the external terminal,

the external terminal has an elastic support portion that elastically supports the protruding portion.

24. A connector is provided with:

the plurality of terminal units according to claim 1 or 2; and

and a housing holding the plurality of terminal units.