JP2023178890A - connector - Google Patents

Abstract

To provide a connector suitable for differential transmission which is compact while being capable of performing impedance matching.SOLUTION: A connector 100 comprises a plurality of terminal sets 3S. The terminal sets 3S consist of a pair of signal terminals 30A and a pair of ground terminals 30B. Each of the pair of signal terminals 30A has an impedance adjustment part 60. Each of the pair of ground terminals 30B has a corresponding part 70. The pair of impedance adjustment parts 60 is adjacent to each other in an arrangement direction, and the pair of corresponding parts 70 sandwiches the pair of impedance adjustment parts 60 from an outside in the arrangement direction. An arrangement-direction dimension W2 of the corresponding part 70 is smaller than an arrangement-direction dimension W1 of the impedance adjustment part 60.SELECTED DRAWING: Figure 10

Description

The present disclosure relates to connectors.

In the connector described in Patent Document 1, each of the plurality of terminals has a wide portion in a portion exposed to the air. This adjusts the impedance that tends to rise in exposed areas.

JP2017-228548A

By the way, it is effective to adopt a differential transmission method for transmitting high frequency signals. Furthermore, when a signal terminal is expressed as S and a ground terminal as G, pin assignment (terminal function assignment) is performed so that a pair of signal terminals is sandwiched between a pair of ground terminals, such as "GSSSGSSG" or "GGSSGGSSGG". This is effective.

In the connector described in Patent Document 1, all of the plurality of terminals have the same shape, so when the above pin assignment is performed, not only the signal terminal but also the ground terminal has a wide portion. If the wide portion is made wider for the purpose of adjusting impedance, the wide portion of the ground terminal also becomes wider. As a result, the interval between the terminals must be increased, resulting in an increase in the size of the connector in the direction in which the terminals are arranged.

The problem to be solved by the present disclosure is to provide a connector suitable for differential transmission that is compact while realizing impedance matching.

A connector according to a first aspect is a connector comprising a housing and one or more terminal sets, wherein the terminal set includes a pair of signal terminals and a pair of ground terminals, and the terminal set includes a pair of signal terminals and a pair of ground terminals. each has a held part held by the housing and an exposed part exposed from the housing, and the exposed part connects an impedance adjustment part and the impedance adjustment part and the held part. each of the pair of ground terminals has a corresponding portion, the pair of the impedance adjustment portions are adjacent to each other in the arrangement direction, and the pair of the corresponding portions are adjacent to each other in the arrangement direction. impedance adjustment parts are sandwiched from outside in the arrangement direction, the dimensions of the impedance adjustment parts in the arrangement direction are larger than the dimensions of the connecting parts in the arrangement direction, and the dimensions of the corresponding parts in the arrangement direction are the dimensions of the impedance adjustment parts in the arrangement direction. smaller than

In this aspect, the connector includes a housing and one or more terminal sets. The terminal set includes a pair of signal terminals and a pair of ground terminals.

Each of the pair of signal terminals has a held portion held by the housing and an exposed portion exposed from the housing.
Since the exposed portion is exposed from the housing, impedance tends to increase excessively.

Here, the exposed part includes an impedance adjustment part and a connection part that connects the impedance adjustment part and the held part. The dimension of the impedance adjustment section in the arrangement direction is larger than the dimension of the connection section in the arrangement direction.
Therefore, the impedance (differential impedance) of the exposed portion can be lowered, and the impedance can be adjusted, compared to a mode in which the dimensions of the impedance adjusting portions in the array direction are the same as the dimensions of the connecting portions in the array direction.

Further, each of the pair of ground terminals has a corresponding portion. The pair of impedance adjustment parts are adjacent to each other in the arrangement direction, and the pair of corresponding parts sandwich the pair of impedance adjustment parts from the outside in the arrangement direction.
Therefore, the pin assignment of "GSSG" can be realized by the impedance adjustment section and the corresponding section.

Further, the dimension of the corresponding portion in the array direction is smaller than the dimension of the impedance adjustment portion in the array direction.
Therefore, compared to an embodiment in which the dimensions in the array direction of the corresponding parts are the same as the dimensions in the array direction of the impedance adjustment part, it is possible to increase the dimension in the array direction of the impedance adjustment part without increasing the size of the connector in the array direction. can.

In the embodiments described below, an example will be described in which the impedance adjustment section extends in a straight line. However, the impedance adjustment section of this embodiment is not limited to this.
Furthermore, in the embodiments described later, an example will be described in which the thickness direction of the impedance adjustment section is perpendicular to both the arrangement direction and the extension direction. However, the impedance adjustment section of this embodiment is not limited to this, and may be one for which the thickness direction is not assumed in the first place (for example, when the terminal is not made of a plate material, such as when it is manufactured by casting).
Furthermore, in the embodiments described below, an example will be described in which the exposed portion is exposed in the air. However, the exposed portion of this embodiment is not limited to this, and may be placed in a gel-like or liquid material, for example.

In the connector according to the second aspect, in the first aspect, the impedance adjustment section has an inner bulge that bulges inward in the arrangement direction and an outer bulge that bulges outward in the arrangement direction.

In this aspect, the impedance adjustment section has an inner bulge that bulges inward in the arrangement direction and an outer bulge that bulges outward in the arrangement direction.
Therefore, the dimension in the arrangement direction of the impedance adjustment section can be increased compared to an embodiment in which the impedance adjustment section has only either the inner bulge or the outer bulge.
Note that the inner side in the array direction means the direction in the array direction that approaches the center in the array direction, and the outer side in the array direction means the direction in the array direction that moves away from the center in the array direction. The center in the arrangement direction refers to the impedance adjustment part and the This means the position between the adjustment section and the adjustment section.
Furthermore, the inner bulge or outer bulge of the impedance adjustment section is a portion that bulges inward or outward in the arrangement direction compared to other parts to which the impedance adjustment section is connected.

In the connector according to the third aspect, in the first or second aspect, the corresponding portion does not have an inner bulge portion that bulges inward in the arrangement direction.

In this aspect, the corresponding portion does not have an inner bulge that bulges inward in the arrangement direction.
For this reason, it is easier to increase the size of the impedance adjustment portions in the arrangement direction, compared to an embodiment in which the corresponding portion has an inward bulge.
Note that the inwardly bulging portion of the corresponding portion is a portion that bulges inward in the arrangement direction compared to other portions to which the corresponding portion is connected.

In the connector according to a fourth aspect, in any one of the first to third aspects, the corresponding portion has a separating portion that is spaced apart from an impedance adjustment portion adjacent to the corresponding portion.

In this aspect, the corresponding section has a separating section that is spaced apart from the impedance adjustment section adjacent to the corresponding section.
For this reason, it is easier to increase the size of the impedance adjustment portions in the arrangement direction, compared to an embodiment in which the corresponding portion does not have a separation portion.

In the connector according to a fifth aspect, in any one of the first to fourth aspects, the pair of impedance adjustment parts have a structure in which the areas of the surfaces facing each other are expanded.

In this aspect, the pair of impedance adjustment sections have a structure that increases the area of their opposing surfaces.
Therefore, the electromagnetic coupling between the pair of impedance adjustment sections can be strengthened. When the electromagnetic coupling between the pair of impedance adjustment sections becomes stronger, the common mode impedance increases and common mode noise is reduced. Further, since the differential impedance decreases by increasing the area of the opposing surfaces, it is possible to adjust the impedance of the exposed portion where the differential impedance tends to increase.
Note that a structure in which the area of the mutually opposing surfaces is expanded is a structure in which the area of the mutually opposing surfaces is expanded compared to a structure in which the mutually opposing surfaces extend parallel to the extending direction of the impedance adjustment section. means.

In the connector according to a sixth aspect, in any one of the first to fifth aspects, the one or more terminal sets are a plurality of terminal sets, and the The corresponding portion and the corresponding portion of another terminal set adjacent to the one terminal set are integrated.

In this aspect, the connector has multiple terminal sets. The corresponding portion of one terminal set among the plurality of terminal sets and the corresponding portion of another terminal set adjacent to the one terminal set are integrated.
If one corresponding section and another corresponding section are adjacent to each other, there is a risk that mutual induction will occur and adversely affect high-speed transmission, but in this embodiment, such a problem can be avoided.

In the connector according to a seventh aspect, in any one of the first to fifth aspects, the one or more terminal sets are a plurality of terminal sets, and adjacent terminal sets among the plurality of terminal sets are: The ground terminal is shared.

In this aspect, the connector has multiple terminal sets. Adjacent terminal sets among the plurality of terminal sets share a ground terminal.
Therefore, one corresponding part and another corresponding part are not adjacent to each other, so that the above-mentioned adverse effects caused by mutual guidance can be avoided. Furthermore, since the number of ground terminals can be reduced, the size of the connector can be reduced in the arrangement direction.

In the connector according to an eighth aspect, in any one of the first to seventh aspects, the connector is used by being attached to an object to be attached, and the housing is fixed to the object to be attached. a fixed housing that is movable with respect to the fixed housing; and a movable housing that is movable with respect to the fixed housing; A held part is provided, and the exposed part is located between the fixed held part and the movable held part.

In this aspect, the housing includes a fixed housing and a movable housing. The held part includes a fixed held part held by the fixed housing and a movable held part held by the movable housing. The exposed portion is located between the fixed side held portion and the movable side held portion.
Therefore, a floating connector suitable for differential transmission can be obtained.
In addition, in the embodiment described below, the exposed part has a connecting part that connects the impedance adjusting part and the fixed side held part, and a connecting part that connects the impedance adjusting part and the movable side held part, An example will be described in which the impedance adjustment section has a larger dimension in the arrangement direction than both connecting sections. However, the dimension in the arrangement direction of the impedance adjustment section of this aspect is not limited to this, and it is sufficient that it is larger than the dimension in the arrangement direction of at least one of the connecting sections.

In the connector according to a ninth aspect, in any one of the first to seventh aspects, the connector is used by being attached to an object to be attached, and the housing is fixed to the object to be attached. Each of the pair of signal terminals has a connection portion connected to the attachment target, and a fixed side held portion that is the held portion and is held by the fixed housing. However, the exposed portion is formed between the connecting portion and the fixed side held portion.

In this aspect, the housing includes a fixed housing. Each of the pair of signal terminals has a connecting portion connected to the object to be attached, and a fixed side held portion held by the fixed housing. The exposed portion is formed between the connecting portion and the fixed-side held portion.
Therefore, a connector having an exposed portion between the connecting portion and the fixed side held portion can have a structure suitable for differential transmission.

Further, a connector according to another aspect of the present disclosure is a connector including a housing and one or more terminal sets, wherein the terminal set includes a pair of signal terminals and a pair of ground terminals, and the terminal set includes a pair of signal terminals and a pair of ground terminals; Each of the pair of signal terminals has a held portion held by the housing and an exposed portion exposed from the housing, and the exposed portion includes an impedance adjustment portion, the impedance adjustment portion, and the held portion. each of the pair of ground terminals has a corresponding portion, the pair of the impedance adjustment portions are adjacent to each other in the arrangement direction, and the pair of the corresponding portions are adjacent to each other in the arrangement direction; , the pair of impedance adjustment parts are sandwiched from the outside in the arrangement direction, the dimension of the impedance adjustment part in the arrangement direction is larger than the dimension of the connection part in the arrangement direction, and the pair of impedance adjustment parts are arranged on opposite surfaces of each other. The impedance adjustment section and the corresponding section that are adjacent to each other do not have a structure that increases the area of opposing surfaces.

In this aspect, the connector includes a housing and one or more terminal sets. The terminal set includes a pair of signal terminals and a pair of ground terminals.

Each of the pair of signal terminals has a held portion held by the housing and an exposed portion exposed from the housing.
Since the exposed portion is exposed from the housing, impedance tends to increase excessively.

Here, the exposed part includes an impedance adjustment part and a connection part that connects the impedance adjustment part and the held part. The dimension of the impedance adjustment section in the arrangement direction is larger than the dimension of the connection section in the arrangement direction.
Therefore, the impedance (differential impedance) of the exposed portion can be lowered, and the impedance can be adjusted, compared to a mode in which the dimensions of the impedance adjusting portions in the array direction are the same as the dimensions of the connecting portions in the array direction.

Further, each of the pair of ground terminals has a corresponding portion. The pair of impedance adjustment parts are adjacent to each other in the arrangement direction, and the pair of corresponding parts sandwich the pair of impedance adjustment parts from the outside in the arrangement direction.
Therefore, the pin assignment of "GSSG" can be realized by the impedance adjustment section and the corresponding section.

Furthermore, the pair of impedance adjustment sections have a structure that increases the area of opposing surfaces. Therefore, the coupling between the pair of impedance adjustment sections is strengthened, and the common mode impedance increases. This attenuates common mode noise, which is advantageous when transmitting and receiving signals using the differential transmission method.
Furthermore, the impedance adjustment section and the corresponding section that are adjacent to each other do not have a structure that increases the area of their opposing surfaces. Therefore, the electromagnetic field can be localized on the opposing surfaces of the pair of impedance adjustment sections. This makes it possible to suppress external radiation and suppress mutual induction when a plurality of terminals are lined up.

Note that in the embodiments described later, an example will be described in which the dimension in the arrangement direction of the corresponding portions is smaller than the dimension in the arrangement direction of the impedance adjustment portions, but the present aspect is not limited to this.
In addition, in this aspect, as described above, "the pair of impedance adjustment parts have a structure that expands the area of their opposing surfaces, and the impedance adjustment part and the corresponding part that are adjacent to each other have a structure that increases the area of their opposing surfaces. However, the above-mentioned effects do not necessarily require this configuration.
Specifically, "the pair of impedance adjustment sections have a structure that enlarges the area of the opposing surfaces, and the area of the opposing surfaces of the pair of impedance adjustment sections is larger than that of the impedance adjustment sections adjacent to each other. and larger than the areas of the opposing surfaces of the corresponding portions, the above-described effects of this aspect can be achieved to a certain extent. In other words, even if the impedance adjustment section and the corresponding section that are adjacent to each other have a structure that expands the area of their opposing surfaces, the above-mentioned effects can be achieved to a certain extent.

It is a perspective view showing the first connector and the second connector before connection. It is a perspective view showing the first connector and the second connector in a connected state. 3 is a sectional view corresponding to FIG. 2. FIG. FIG. 3 is a perspective view of a plurality of first terminals. It is a perspective view showing a terminal set. FIG. 3 is a cross-sectional perspective view of the fixed housing. FIG. 3 is a cross-sectional perspective view of the movable housing. It is a perspective view of a second terminal. FIG. 3 is a cross-sectional perspective view of the second housing. FIG. 4 is a diagram of the impedance adjustment section and the corresponding section viewed from a direction perpendicular to both the arrangement direction and the extension direction. It is a figure which shows the impedance adjustment part and corresponding part of a 1st modification. It is a figure which shows the impedance adjustment part and corresponding part of a second modification. It is a perspective view showing a plurality of first terminals of a third modification. It is a figure which shows the impedance adjustment part and corresponding part of a 3rd modification. It is a perspective view showing a plurality of first terminals of a fourth modification. It is a figure which shows the impedance adjustment part and corresponding part of a fourth modification. FIG. 3 is a perspective view showing an example of a structure in which the invention of the present disclosure is applied to a second connector. It is a figure which shows the modification of an impedance adjustment part and a corresponding part.

Hereinafter, embodiments of the connector of the present disclosure will be described.

The arrow X shown in each figure is sometimes called the connector front-rear direction, the arrow Y is sometimes called the connector width direction, and the arrow Z is sometimes called the connector up-down direction.

(Connector set 100, 200)
1 to 3 show a connector set 100, 200 consisting of a first connector 100 and a second connector 200.
By attaching the first connector 100 to the first board B1, attaching the second connector 200 to the second board B2, and connecting the first connector 100 and the second connector 200, the first board B1 and the second board B2 can be connected. can be connected. The first substrate B1 and the second substrate B2 are arranged parallel to each other.
The first connector 100 is a floating connector, and the second connector 200 is not a floating connector.

(First connector 100)
The first connector 100 includes first housings 10 and 20 and a plurality of first terminals 30. The first housings 10 and 20 include a fixed housing 10 and a movable housing 20.

The fixed housing 10 is a housing that is fixed to a first substrate B1 to which the first connector 100 is attached. The fixed housing 10 is fixed to the first substrate B1 via a plurality of first terminals 30.

The movable housing 20 is a housing that is movably provided relative to the fixed housing 10. The movable housing 20 is supported in a floating state by the plurality of first terminals 30.

The fixed housing 10 and the movable housing 20 are made of an insulator such as synthetic resin.

The first terminal 30 connects the first board B1 and the second terminal 50 of the second connector 200.
The first terminal 30 is made by performing punching, bending, etc. on a conductive plate material.

As shown in FIG. 4, the plurality of terminals 30 include a plurality (12) of terminals 30 on the front side and a plurality (12) of terminals 30 on the rear side. It can also be understood that the front terminal 30 and the rear terminal 30 constitute a pair of terminals 30, and the pair of terminals 30 are arranged with the Y direction as the arrangement direction. The front and rear pair of terminals 30 are arranged to face each other so that the side direction of each contact part (the direction in which the contact part 35b is positioned with respect to the connection part 31 when viewed from the Z direction) is directed inward in the X direction.

(first terminal 30)
Next, the first terminal 30 will be explained in detail.

As shown in FIG. 4, the plurality (24) of first terminals 30 include a plurality of terminal sets 3S each including a pair of signal terminals 30A and a pair of ground terminals 30B. Specifically, the plurality (12) of first terminals 30 on the front side include three sets of terminals 3S, and the plurality (12) of first terminals 30 on the rear side include three sets of terminals. Set included.
As shown in FIG. 5, one and the other of the pair of signal terminals 30A are symmetrical in the Y direction, which is the arrangement direction, and one and the other of the pair of ground terminals 30B are also arranged in the Y direction, which is the arrangement direction. It has a symmetrical structure.

Hereinafter, when describing features common to the signal terminal 30A and the ground terminal 30B, the term first terminal 30 will be used.

As shown in FIG. 5, the first terminal 30 includes a connecting portion 31, a fixed side held portion 32, an intermediate portion 33, a movable side held portion 34, and a tip portion 35 in this order.

The connecting portion 31 is a portion that is connected to the first substrate B1, which is an object to be attached.
The connecting portion 31 extends from the fixed side held portion 32 outward in the X direction, which is a direction along the surface of the first substrate B1. The connecting portion 31 is soldered to the surface of the first board B1.

The fixed side held part 32 is a part held by the fixed housing 10.
The fixed-side held portion 32 is press-fitted into the fixed housing 10 with the +Z direction as the press-fitting direction, and thereby held in the fixed housing 10 . The fixed side held portion 32 extends in the +Z direction with the plate width direction facing the Y direction, which is the terminal arrangement direction. The fixed side held portion 32 has a press-fitting projection. The press-fitting protrusions are formed on both sides of the fixed side held portion 32 in the plate width direction.

The intermediate portion 33 is a portion that connects the fixed side held portion 32 and the movable side held portion 34, and is deformable so that the movable side held portion 34 can be displaced with respect to the fixed side held portion 32. This is the part that is formed. The intermediate portion 33 is a portion that is not held by any housing and is exposed from the first housings 10 and 20. Hereinafter, the intermediate portion 33 may be referred to as the exposed portion 33.
The intermediate portion 33 has a curved portion 33a at one end, a curved portion 33b at the other end, and a curved portion 33c at the other end in this order.

The one end side curved portion 33a converts the Z-direction component of the extending direction of the first terminal 30 from positive to negative.

The linear portion 33b is a portion whose extending direction is linear. The extending direction of the straight portion 33b is the −Z direction and the diagonal inner direction in the X direction. The plate width direction of the straight portion 33b faces the Y direction, which is the terminal arrangement direction. The straight portion 33b does not have a bent portion in the thickness direction.
An impedance adjustment part 60 is formed in the straight part 33b of the signal terminal 30A, and a corresponding part 70 is formed in the straight part 33b of the ground terminal 30B. Details of the impedance adjustment section 60 and the corresponding section 70 will be described later.

The other end side curved portion 33c converts the Z-direction component of the extending direction of the first terminal 30 from negative to positive. Note that a wide portion 33c1 is formed at a middle portion in the extending direction of the other end side curved portion 33c.

The movable side held part 34 is a part held by the movable housing 20.
The movable side held portion 34 is press-fitted into the movable housing 20 with the +Z direction being the press-fitting direction, and thereby held by the movable housing 20 . The movable side held portion 34 extends in the +Z direction with the plate width direction facing the Y direction, which is the terminal arrangement direction. The movable side held portion 34 has a press-fitting projection. The press-fitting protrusions are formed on both sides of the movable side held portion 34 in the plate width direction.

The tip portion 35 is a portion closer to the other end than the movable held portion 34 .
The tip portion 35 has a contact portion 35b and an elastic support portion 35a.

The contact portion 35b is a portion that comes into contact with the second terminal 50 (mate terminal) of the second connector 200 (mate connector). The contact portion 35b is bent in the thickness direction so as to be convex inward in the X direction, which is the direction in which it contacts the second terminal 50.

The elastic support portion 35a is a portion that elastically supports the contact portion 35b. When the second connector 200 (mating connector) is connected to the connector 100, the elastic support portion 35a is elastically deformed so that the contact portion 35b is displaced outward in the X direction.

(Fixed housing 10)
Next, the fixed housing 10 will be explained in detail.

As shown in FIG. 6, the fixed housing 10 includes a terminal holding section 11 on the front side and a terminal holding section 11 on the rear side. The front terminal holding part 11 and the rear terminal holding part 11 have the same structure. Hereinafter, when not distinguishing between the two, they will simply be referred to as the terminal holding section 11.

The terminal holding portion 11 has a plurality of walls 12 in the arrangement direction.
The arrangement direction walls 12 are located on both sides of the fixed side held portion 32 of the terminal 30 in the arrangement direction and the Y direction, which is the plate width direction. The fixed-side held portion 32 is press-fitted into a space between adjacent arrangement-direction walls 12 among the plurality of arrangement-direction walls 12 . The space is open inward in the X direction. Thereby, when the fixed side held part 32 is press-fitted, the intermediate part 33 (specifically, the one end side curved part 33a) of the terminal 30 can pass through the open part.

The terminal holding part 11 has an outer wall 13.
The outer wall 13 is located on the outer side in the X direction with respect to the fixed side held part 32. The outer wall 13 connects with the outer ends of the plurality of arrangement direction walls 12 in the X direction.

The terminal holding section 11 has a top wall 14.
The top wall 14 is located in the +Z direction with respect to the fixed side held part 32 and a part of the intermediate part 33. The ceiling wall 14 connects to the +Z direction side of the plurality of arrangement direction walls 12. The ceiling wall 14 extends inward in the X direction from the +Z direction end of the outer wall 13.

(Movable housing 20)
Next, the movable housing 20 will be explained in detail.

As shown in FIG. 7, the movable housing 20 has a plurality of walls 21 in the arrangement direction.
The arrangement direction walls 21 are located on both sides of a portion of the terminals 30 in the Y direction, which is the arrangement direction.

The arrangement direction wall 21 has a lower arrangement direction wall 21a and an upper arrangement direction wall 21b.
The lower arrangement direction wall 21 a corresponds to the movable side held portion 34 .
The upper arrangement direction wall 21b corresponds to the tip portion 35.
The upper arrangement direction wall 21b is separated into a front part and a rear part. A space is formed between the front upper array direction wall 21b and the rear upper array direction wall 21b into which a part of the second connector 200, which is a mating connector, is inserted.
The lower arrangement direction wall 21a has a front portion and a rear portion integrally formed.

The movable housing 20 has a pair of front and rear outer walls 22.
The outer wall 22 is located outside in the X direction with respect to a portion of the terminal 30. The outer wall 22 connects the plurality of arrangement direction walls 21 at its outer portion in the X direction.

The movable housing 20 has a connecting wall 23 in the arrangement direction.
The arrangement direction connecting wall 23 connects the plurality of lower arrangement direction walls 21a in the arrangement direction.

(Impedance adjustment section 60 and corresponding section 70)
Next, the impedance adjustment section 60 and the corresponding section 70 will be explained.

As shown in FIG. 5, the signal terminal 30A and the ground terminal 30B have different structures in the straight portion 33b of the intermediate portion 33 (exposed portion 33). Specifically, the impedance adjustment part 60 is formed in the straight part 33b of the intermediate part 33 of the signal terminal 30A, whereas the corresponding part 70 is formed in the straight part 33b of the intermediate part 33 of the ground terminal 30B. . It should be noted that the signal terminal 30A and the ground terminal 30B have the same structure in a portion other than the straight portion 33b of the intermediate portion 33.

The pair of impedance adjustment sections 60 and the pair of corresponding sections 70 both extend in the same extending direction. The extending direction is the -Z direction and an inward diagonal direction in the X direction.
The pair of impedance adjustment sections 60 are adjacent to each other in the Y direction, which is the arrangement direction. The pair of corresponding parts 70 sandwich the pair of impedance adjustment parts 60 from the outside in the Y direction, which is the arrangement direction.

FIG. 10 is a view of a pair of impedance adjustment parts 60 and a pair of corresponding parts 70 arranged in the arrangement direction and extending in the extension direction, as viewed from a direction perpendicular to both the extension direction and the arrangement direction. Note that three sets are shown in FIG. 10, with the pair of impedance adjustment sections 60 and the pair of corresponding sections 70 as one set.

The pair of impedance adjustment parts 60 and the pair of corresponding parts 70 both have their plate thickness directions oriented in a direction perpendicular to both the extension direction and the arrangement direction (the direction perpendicular to the plane of the paper in FIG. 10).

The housings 10 and 20 are not interposed between adjacent impedance adjustment sections 60. Moreover, the housings 10 and 20 are not interposed between the adjacent impedance adjustment section 60 and the corresponding section 70. Furthermore, the housings 10 and 20 are not interposed between adjacent corresponding parts 70.
Note that the fixed housing 10 is interposed between the plurality of adjacent one-end side curved portions 33a (connecting portions) (see FIG. 3).

The impedance adjustment section 60 has one end 60a, a main body 60b, and the other end 60c.
The one end portion 60a constitutes one end side portion of the impedance adjustment portion 60, and is connected to the one end side curved portion 33a.
The other end portion 60c constitutes the other end side portion of the impedance adjustment section 60, and is connected to the other end side curved portion 33c.
The main body portion 60b constitutes a portion between one end portion 60a and the other end portion 60c.

The main body portion 60b is formed into a substantially rectangular shape when viewed from the thickness direction. The plate width W1 of the main body portion 60b is larger than the plate width W3 of the one end side curved portion 33a and larger than the plate width W3 of the other end side curved portion 33c. In addition, in this embodiment, the board width W3 of the one end side curved part 33a and the board width W3 of the other end side curved part 33c are the same. The plate width W1 of the main body portion 60b is preferably 1.5 times or more, more preferably 2.5 times or more, the plate width W3 of the one end side curved portion 33a.

The one end portion 60a is formed such that the plate width becomes smaller toward the one end side curved portion 33a.
The other end portion 60c is formed such that the plate width becomes smaller toward the other end side curved portion 33c.
The plate width at the other end of the one end portion 60a is smaller than the plate width W1 of the main body portion 60b. Therefore, the plate width changes discontinuously at the boundary between the one end portion 60a and the main body portion 60b.
The plate width at the most one end side of the other end portion 60c is smaller than the plate width W1 of the main body portion 60b. Therefore, the plate width changes discontinuously at the boundary between the other end portion 60c and the main body portion 60b.
Since the plate width changes discontinuously at the boundaries between the one end 60a and the other end 60c and the main body 60b, the area of the impedance adjustment section 60 (the area viewed from the same direction as in FIG. 10) can be effectively reduced. Can be made larger. In other words, the portion of the impedance adjustment section 60 with a large cross-sectional area can be effectively increased. Further, bending of the intermediate portion 33 is more likely to occur in the vicinity where the plate width changes discontinuously, and the bending can be controlled.

The corresponding portion 70 has one end 70a, a main body 70b, and the other end 70c.
The one end portion 70a constitutes a portion on the one end side of the corresponding portion 70, and is connected to the one end side curved portion 33a.
The other end portion 70c constitutes the other end side portion of the corresponding portion 70, and is connected to the other end side curved portion 33c.
The main body portion 70b constitutes a portion between one end portion 70a and the other end portion 70c.

The main body portion 70b is formed into a substantially rectangular shape when viewed from the thickness direction. The plate width W2 of the main body portion 70b is slightly larger than the plate width W3 of the one end side curved portion 33a. The plate width W2 of the main body part 70b of the corresponding part 70 is smaller than the plate width W1 of the main body part 60b of the impedance adjustment part 60, preferably 0.8 times or less, more preferably 0.5 times or less.

The impedance adjustment section 60 can be considered to include an inner bulge 61 and an outer bulge 62.
The inner bulging portion 61 is a portion bulging inward in the arrangement direction, and specifically, the structure is based on the assumption that the plate width of the impedance adjustment portion 60 is the same as that of the end side curved portion 33a (FIG. 10). This is the part that bulges inward in the arrangement direction with respect to the structure represented by the dashed line.
The outer bulging portion 62 is a portion bulging outward in the arrangement direction, and specifically, the structure is based on the assumption that the plate width of the impedance adjustment portion 60 is the same as that of the end side curved portion 33a (FIG. 10). This is the part that bulges outward in the arrangement direction with respect to the structure represented by the dashed line.

By forming the inner bulge portion 61, the distance between the pair of impedance adjustment portions 60 becomes closer. As the distance between the pair of impedance adjustment sections 60 becomes closer, the coupling between the signal terminals 30A is strengthened and the common mode impedance increases.
Further, by forming the inner bulge 61 and the outer bulge 62, the cross-sectional area of the impedance adjustment section 60 is expanded. By enlarging the cross-sectional area of the impedance adjustment section 60, the differential impedance is reduced.

It can be understood that the corresponding portion 70 includes a separating portion 73 and an outer bulging portion 72 .
The spacing portion 73 is a portion that is spaced outward in the arrangement direction, which is the direction away from the adjacent impedance adjustment portions 60. Specifically, the plate width of the corresponding portion 70 is the same plate width as the end side curved portion 33a. This is a recessed portion outward in the arrangement direction with respect to the assumed structure (the structure represented by the dashed line in FIG. 10).
The outer bulging portion 72 is a portion bulging outward in the arrangement direction, and specifically, the structure is based on the assumption that the plate width of the corresponding portion 70 is the same as that of the end side curved portion 33a (see FIG. 10). This is a portion that bulges outward in the arrangement direction with respect to the structure represented by the dashed line.

Since the corresponding portion 70 does not have an inner bulge and includes the spacing portion 73, the amount of bulge of the outer bulge 62 of the impedance adjustment portion 60 can be increased. As a result, in this embodiment, the outer bulge 62 of the impedance adjustment section 60 has a larger amount of bulge than the inner bulge 61 of the impedance adjustment section 60 .

(Second connector 200)
Next, the second connector 200 will be explained.

As shown in FIG. 1, the second connector 200 includes a second housing 40 and a plurality of second terminals 50. The second housing 40 includes only a fixed housing and no movable housing.

The second housing 40 is fixed to the second board B2, which is the object to which the second connector 200 is attached. The second housing 40 is fixed to the second substrate B2 via a plurality of second terminals 50.

The second terminal 50 connects the second board B2 and the first terminal 30 of the first connector 100.
The second terminal 50 is made by punching and bending a conductive plate material.
Each of the plurality of second terminals 50 has the same shape.

The plurality of second terminals 50 include a plurality of (twelve in the figure) second terminals 50 on the front side and a plurality (twelve in the figure) of second terminals 50 on the rear side. A pair of second terminals 50 is configured by the front second terminal 50 and the rear second terminal 50 (see FIG. 8), and the pair of second terminals 50 are arranged with the Y direction as the terminal arrangement direction. It can also be understood that

(Second terminal 50)
Next, the second terminal 50 will be explained.

The second terminal 50 includes a connecting portion 51, a held portion 53, and a tip portion 54 in this order.

The connecting portion 51 is a portion connected to the second substrate B2.
The connecting portion 51 extends outward in the X direction, which is a direction along the surface of the second substrate B2, and is soldered to the surface of the second substrate B2.

The held portion 53 is a portion held by the second housing 40.
The held portion 53 is held in the second housing 40 by being press-fitted into the second housing 40 with the -Z direction being the press-fitting direction. The held portion 53 has a press-fitting projection 53a. The press-fitting protrusions 53a are formed on both sides of the held portion 53 in the board width direction.

The tip portion 54 is a portion closer to the other end than the held portion 53 .
The tip portion 54 is connected to the held portion 53 without a curved portion, and extends linearly in the −Z direction. As a result, the held portion 53 and the tip portion 54 extend linearly in the -Z direction.
The tip portion 54 has a connecting portion 54a and a contact portion 54b.

The connecting portion 54a is a portion that connects the held portion 53 and the contact portion 54b.
The contact portion 54b is a portion that comes into contact with the first terminal 30 of the first connector 100. The surface of the contact portion 54b that contacts the first terminal 30 is the outer surface in the X direction.

The second terminal 50 has a relay part 52 between the connecting part 51 and the held part 53.
The relay portion 52 connects the connecting portion 51 and the held portion 53 in the X direction. The relay section 52 has, from the connection section 51 side, a curved section 52a at one end, a curved section 52b at the other end, and a curved section 52c at the other end.

The one-end curved portion 52a connects the connecting portion 51 and the straight portion 52b. The bending angle of the one end side curved portion 52a is 45 degrees or less.
The straight portion 52b extends linearly inward in the X direction.
The other end curved portion 52c connects the straight portion 52b and the held portion 53.

As shown in FIG. 3, the relay part 52 is exposed from the second housing 40. Hereinafter, the relay section 52 may be referred to as the exposed section 52. The housing 40 is not interposed between the adjacent straight parts 52b, and the housing 40 is not interposed between the adjacent other end side curved parts 52c. On the other hand, an arrangement direction wall 46, which will be described later, is interposed between the adjacent one end side curved portions 52a.

(Second housing 40)
The second housing 40 has a base 41 .

A terminal press-fit hole 42 is formed in the base portion 41 . The terminal press-fit hole 42 is a hole that penetrates the base 41 in the Z direction, and is a hole into which the held portion 53 of the second terminal 50 is press-fitted and held.

The second housing 40 has a terminal arrangement wall 43.

A terminal arrangement groove 44 is formed in the terminal arrangement wall 43 . The terminal arrangement groove 44 is a groove connected linearly from the terminal press-fit hole 42, and is a groove in which the tip end portion 54 of the second terminal 50 is arranged.

An adjustment groove 45 that extends along the terminal press-fit hole 42 and the terminal placement groove 44 is formed inside the terminal press-fit hole 42 and the terminal placement groove 44 . The adjustment groove 45 is formed to adjust the impedance of the second terminal 50. The adjustment groove 45 is a groove whose depth direction is on the inside in the X direction.

The second housing 40 has a plurality of array direction walls 46 located on both sides in the Y direction with respect to the one end side curved portion 52a of the second terminal 50. One end side curved portion 52a is arranged between adjacent arrangement direction walls 46. The arrangement direction wall 46 protrudes from the base 41 in the +Z direction.

<Effect>
Next, the effects of this embodiment will be explained.

In this embodiment, the connector 100 includes housings 10 and 20 and a plurality of terminal sets 3S (see FIG. 4). The terminal set 3S includes a pair of signal terminals 30A and a pair of ground terminals 30B.

As shown in FIG. 3, each of the pair of signal terminals 30A includes held parts 32 and 34 held by the housings 10 and 20, and an exposed part 33 exposed from the housings 10 and 20.
Since the exposed portion 33 is exposed from the housings 10 and 20, impedance tends to increase excessively.

Here, as shown in FIG. 5, the exposed part 33 includes an impedance adjustment part 60 and connection parts 33a and 33c that connect the impedance adjustment part 60 and the held parts 32 and 34. As shown in FIG. 10, the dimension W1 in the arrangement direction of the impedance adjustment section 60 is larger than the dimension W3 in the arrangement direction of the connecting sections 33a and 33c.
Therefore, the impedance (differential impedance) of the exposed portion 33 can be lowered compared to a mode in which the arrangement direction dimension W1 of the impedance adjustment section 60 is the same as the arrangement direction dimension W3 of the connecting sections 33a and 33c. can be adjusted.

Further, each of the pair of ground terminals 30B has a corresponding portion 70. The pair of impedance adjustment parts 60 are adjacent to each other in the arrangement direction, and the pair of corresponding parts 70 sandwich the pair of impedance adjustment parts 60 from the outside in the arrangement direction.
Therefore, the impedance adjustment section 60 and the corresponding section 70 can realize the "GSSG" pin assignment.

Further, the dimension W2 of the corresponding portion 70 in the array direction is smaller than the dimension W1 of the impedance adjustment portion 60 in the array direction.
Therefore, compared to an embodiment in which the arrangement direction dimension W2 of the corresponding part 70 is the same as the arrangement direction dimension W1 of the impedance adjustment section 60, the arrangement direction of the impedance adjustment section 60 can be improved without increasing the size of the connector 100 in the arrangement direction. The dimension W1 can be increased.

Further, in this embodiment, as shown in FIG. 10, the impedance adjustment section 60 has an inner bulge 61 that bulges inward in the arrangement direction, and an outer bulge 62 that bulges outward in the arrangement direction. .
Therefore, the dimension W1 of the impedance adjustment section 60 in the arrangement direction can be increased compared to a mode in which the impedance adjustment section 60 has only one of the inner bulge section 61 and the outer bulge section 62.

Furthermore, in this embodiment, the corresponding portion 70 does not have an inner bulge portion 71 (see FIG. 11) that bulges inward in the arrangement direction.
Therefore, compared to a mode in which the corresponding portion 70 has the inner bulge portion 71, it is easier to increase the dimension W1 in the arrangement direction of the impedance adjustment portion 60.

Further, in this embodiment, the corresponding section 70 has a separation section 73 that is spaced apart from the impedance adjustment section 60 adjacent to the corresponding section 70 .
For this reason, it is easier to increase the dimension W1 of the impedance adjustment portion 60 in the arrangement direction, compared to an embodiment in which the corresponding portion 70 does not have the separation portion 73 (see FIG. 12).

Moreover, in this embodiment, as shown in FIG. 3, the housings 10 and 20 include a fixed housing 10 and a movable housing 20. The held part 32 includes a fixed held part 32 held by the fixed housing 10 and a movable held part 34 held by the movable housing 20. The exposed portion 33 is located between the fixed side held portion 32 and the movable side held portion 34.
Therefore, a floating connector suitable for differential transmission can be obtained.

Moreover, in this embodiment, as shown in FIG. 5, each of the pair of ground terminals 30B has held parts 32 and 34 held by the housings 10 and 20. As shown in FIG. 4, the held parts 32, 34 of the pair of signal terminals 30A and the held parts 32, 34 of the pair of ground terminals 30B are arranged at equal intervals in the arrangement direction.
Therefore, the terminals can be efficiently held in the housings 10, 20.

Modifications of this embodiment will be described below.

(First variation)
FIG. 11 shows a first modification.

In the first modification, the structures of the impedance adjustment section 60 and the corresponding section 70 are different from those of the above embodiment. The configuration of other parts is similar to the above embodiment.

In the first modification, the dimension W1 of the impedance adjustment section 60 in the arrangement direction is larger than the dimension W2 of the corresponding section 70 in the arrangement direction, as in the above embodiment. Note that the dimension W1 in the arrangement direction of the impedance adjustment section 60 means an average dimension.
The corresponding portion 70 of the first modification includes an inner bulge 71 and an outer bulge 72 .

Furthermore, in the first modification, the pair of impedance adjustment sections 60 have a structure 60S that expands the area of their opposing surfaces.
Specifically, the pair of impedance adjustment sections 60 have a pair of opposing surfaces 60S that face each other. The pair of opposing surfaces 60S both have a shape in which unevenness is repeated along the extending direction when viewed from the plate thickness direction. Specifically, the opposing surface 60S has a shape similar to a sine curve when viewed from the thickness direction, and is a smooth curve.
As a result, in the impedance adjustment part 60, convex parts that protrude in the direction toward the adjacent impedance adjustment part 60 and recessed parts that are depressed in the direction away from the adjacent impedance adjustment part 60 are formed alternately along the extension direction. be done.
The convex portion of one impedance adjusting portion 60 is formed at the same position as the concave portion of the other impedance adjusting portion 60 in the extending direction. The concave portion of one impedance adjusting portion 60 is formed at the same position as the convex portion of the other impedance adjusting portion 60 in the extending direction.

As described above, since the pair of impedance adjustment sections 60 have the structure 60a that enlarges the area of their opposing surfaces, the coupling between the pair of impedance adjustment sections 60 can be strengthened. When the coupling between the pair of impedance adjustment sections 60 becomes stronger, the common mode impedance increases and common mode noise is reduced.
On the other hand, the impedance adjustment section 60 and the corresponding section 70 adjacent thereto do not have a structure that increases the area of their opposing surfaces. Therefore, the electromagnetic field can be localized on the opposing surfaces of the pair of impedance adjustment sections 60. This makes it possible to suppress external radiation and suppress mutual induction when a plurality of terminals are lined up.

Note that in the above embodiment (see FIG. 10), the pair of impedance adjustment sections 60 may be modified to have a structure that increases the area of their opposing surfaces.
In addition to the structure shown in FIG. 11, examples of structures for expanding the area of the opposing surfaces include structures shown in FIGS. 18(A) and 18(B), for example. As common to these structures (FIGS. 11 and 18), the same shape is repeated in the extending direction of the impedance adjustment section 60 (up and down direction in each figure) to enlarge the area of the opposing surfaces. The structures that appear are preferred.

(Second modification)
FIG. 12 shows a second modification.

In the second modification, the corresponding portion 70 does not have the inner bulging portion 71 (see FIG. 11) and the separating portion 73 (see FIG. 10). In the second modification, the inner end of the corresponding portion 70 in the arrangement direction extends parallel to the extension direction. The inner end of the corresponding portion 70 in the arrangement direction coincides with the inner end of the one-end side curved portion 33a in the arrangement direction.

In the second modified example, as a result of the corresponding part 70 not having the inner bulging part 71, the impedance adjustment part 60 is The amount of bulge of the outer bulge 62 is increased.
On the other hand, as a result of the corresponding part 70 not having the separating part 73, the amount of bulge of the outer bulging part 62 of the impedance adjusting part 60 is smaller than the embodiment in which the corresponding part 70 has the separating part 73 (see FIG. 10). It's getting smaller.

(Third variation)
13 and 14 show a third modification.

In the third modification, the corresponding part 70 of one terminal set 3S among the plurality of terminal sets 3S and the corresponding part 70 of the other terminal set 3S adjacent to the one terminal set 3S are integrated. .
If one corresponding section 70 and another corresponding section 70 are adjacent to each other, there is a risk that mutual induction will occur and adversely affect high-speed transmission. However, in the third modification, such a problem can be avoided.

Note that since the corresponding portion 70 of one ground terminal 30B and the corresponding portion 70 of the other adjacent ground terminal 30B are integrated, the dimension W2 of the corresponding portion 70 in the arrangement direction is the dimension indicated by W2 in FIG. I think so.

Each of the plurality of first terminals 30 on the front side and the plurality of first terminals 30 on the rear side includes three terminal sets 3S, similarly to the above embodiment. However, each of the plurality of first terminals 30 on the front side and the plurality of first terminals 30 on the rear side is composed of 14 first terminals 30, unlike the above embodiment, and specifically, the arrangement is "GGSSGGSSSGGSSGG". Consists of. Of these, the "GG" portion is constituted by an integrated member (a member in which two ground terminals 30B are integrated). Note that among the fourteen first terminals 30, the two outermost ground terminals 30B in the arrangement direction do not belong to any terminal set 3S.

Also in the third modification, the dimension W1 of the impedance adjustment section 60 in the arrangement direction is larger than the dimension W2 of the corresponding section 70 in the arrangement direction. More specifically, as shown in FIG. 14, the dimension W1 of the impedance adjustment section 60 in the arrangement direction is more preferably twice or more the dimension W2 of the corresponding section 70 in the arrangement direction.

(Fourth variation)
15 and 16 show a fourth modification.

In the fourth modification, each of the plurality of first terminals 30 on the front side and the plurality of first terminals 30 on the rear side includes three terminal sets 3S, similarly to the above embodiment. However, each of the plurality of first terminals 30 on the front side and the plurality of first terminals 30 on the rear side is composed of ten first terminals 30, unlike the above embodiment. Thereby, adjacent terminal sets 3S among the plurality of terminal sets 3S share the ground terminal 30B.
Therefore, one corresponding section 70 and another corresponding section 70 are not adjacent to each other, so that the above-mentioned adverse effects due to mutual guidance can be avoided. Furthermore, since the number of ground terminals 30B can be reduced, the connector 100 can be made smaller in the arrangement direction.

Furthermore, the corresponding portion 70 of the ground terminal 30B does not have the inner bulge 71 and the outer bulge 72. The dimension W2 in the arrangement direction of the corresponding portion 70 is the same as the dimension W3 in the arrangement direction of the one end side curved portion 33a. This allows the connector 100 to be further miniaturized in the arrangement direction.

〔supplementary explanation〕
In addition, in the said embodiment, the connector 100 demonstrated the example provided with the several terminal set 3S. However, the connector of the present disclosure is not limited to this, and may include only one terminal set.

Further, in the above embodiment, an example has been described in which the first terminal 30 orients the plate thickness direction in a plane perpendicular to the Y direction, regardless of its location. However, the signal terminal and ground terminal of the present disclosure are not limited thereto.

Moreover, in the embodiment described above, each of the plurality of second terminals 50 of the second connector 200 has the same shape. In other words, the invention of the present disclosure is not applied to the second connector 200. However, the invention of the present disclosure may be applied to the second connector 200.

FIG. 17 shows a terminal set 5S included in the second connector 200 to which the invention of the present disclosure is applied. An impedance adjustment portion 60 or a corresponding portion 70 is formed in the straight portion 52b of the exposed portion 52 of the second terminal 50 (signal terminal 50A or ground terminal 50B). Note that the other end side curved portion 52c corresponds to a “connecting portion”. In this figure, a structure similar to the first modified example is employed, but other structures (for example, structures similar to the above embodiment or the second to fourth modified examples) may be employed. Thereby, the connector 200 having the exposed portion 52 between the connecting portion 51 and the held portion 53 can have a structure suitable for differential transmission. Further, as shown in FIG. 17, it is preferable that the dimension in the arrangement direction of the portion (one end side curved portion 52a) that connects the impedance adjustment section 60 and the connection section 51 is also smaller than the dimension in the arrangement direction of the impedance adjustment section 60.

Further, in the above embodiment, an example has been described in which the front terminal holding part 11 and the rear terminal holding part 11 of the fixed housing 10 are separated from each other. However, the fixed housing of the present disclosure is not limited to this, and may be formed as a whole. For example, the front terminal holding part and the rear terminal holding part may be connected to each other at two parts on the outside in the connector width direction.
Further, in the above embodiment, an example has been described in which the space in the movable housing 20 into which a part of the mating connector 200 is inserted is open on both sides in the width direction. However, the movable connector of the present disclosure is not limited to this, and may have walls located on both sides of the space in the width direction.

100 First connector 200 Second connector 3S Terminal set 5S Terminal set 10, 20 First housing (housing)
10 Fixed housing 20 Movable housing 30 First terminal (terminal)
30A Signal terminal 30B Ground terminal 31 Connection part 32 Fixed side held part (held part)
33 Middle part (exposed part)
33a One end side bent part (connecting part)
33b Straight section 33c Other end side curved section (connection section)
34 Movable side held part (held part)
35 Tip part 40 Second housing 50 Second terminal 51 Connection part 52 Relay part 52a One end side curved part 52b Straight part (exposed part)
52c Other end side curved part (exposed part)
53 Holding section 60 Impedance adjustment section 60S Opposing surfaces (structure that expands the area of mutually opposing surfaces)
61 Inner bulge part 62 Outer bulge part 70 Corresponding part 71 Inner bulge part 72 Outer bulge part 73 Separation part W1 Plate width of impedance adjustment part (dimension in arrangement direction)
W2 Width of the opposing part (dimension in the array direction)
W3 Plate width of connecting part (dimension in arrangement direction)

Claims (9)

housing and
A connector comprising one or more terminal sets,
The terminal set includes a pair of signal terminals and a pair of ground terminals,
Each of the pair of signal terminals has a held portion held by the housing and an exposed portion exposed from the housing,
The exposed part has an impedance adjustment part and a connection part that connects the impedance adjustment part and the held part,
Each of the pair of ground terminals has a corresponding portion,
The pair of impedance adjustment parts are adjacent to each other in the arrangement direction,
The pair of corresponding parts sandwich the pair of impedance adjustment parts from the outside in the arrangement direction,
The dimension in the arrangement direction of the impedance adjustment part is larger than the dimension in the arrangement direction of the connection part,
The dimension in the arrangement direction of the corresponding part is smaller than the dimension in the arrangement direction of the impedance adjustment part.
connector. The impedance adjustment section is
an inner bulge that bulges inward in the arrangement direction;
an outer bulge bulging outward in the arrangement direction;
The connector according to claim 1. The corresponding portion does not have an inner bulge that bulges inward in the arrangement direction.
The connector according to claim 1 or claim 2. The corresponding part has a separating part separated from an impedance adjustment part adjacent to the corresponding part,
The connector according to claim 1 or claim 2. The pair of impedance adjustment parts have a structure that expands the area of mutually opposing surfaces,
The connector according to claim 1 or claim 2. The one or more terminal sets are a plurality of terminal sets,
The corresponding portion of one terminal set among the plurality of terminal sets and the corresponding portion of another terminal set adjacent to the one terminal set are integrated;
The connector according to claim 1 or claim 2. The one or more terminal sets are a plurality of terminal sets,
Adjacent terminal sets among the plurality of terminal sets share the ground terminal;
The connector according to claim 1 or claim 2. The connector is used by being attached to an object to which it is attached,
The housing includes a fixed housing fixed to the attachment target and a movable housing movable with respect to the fixed housing,
The held part includes a fixed held part held by the fixed housing and a movable held part held by the movable housing,
The exposed part is located between the fixed side held part and the movable side held part,
The connector according to claim 1 or claim 2. The connector is used by being attached to an object to which it is attached,
The housing includes a fixed housing fixed to the attachment target,
Each of the pair of signal terminals has a connection portion connected to the attachment target, and a fixed side held portion that is the held portion and is held by the fixed housing;
The exposed part is formed between the connecting part and the fixed side held part,
The connector according to claim 1 or claim 2.