JP2016164825A - Connection terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connection terminal enabling stable connection even if there is a variation in an inner diameter of a connection hole of an electric component.SOLUTION: The connection terminal, which is inserted in the connection hole provided on the electric component and electrically connected to the electric component, includes: a base; a conductive tip part provided on the tip of the base in a longer direction and having elasticity in a width direction perpendicular to the longer direction; and a holding part which presses, in the width direction, the tip part in a state of being disposed in a holding position of the tip part, and is slidably disposed from the holding position to the direction of the base along the tip part.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a connection terminal.

Conventionally, a press-fit terminal is known as a connection terminal that is inserted into a connection hole provided in an electrical component such as a printed circuit board and electrically connected to the electrical component (see, for example, Patent Documents 1 and 2).
[Prior art documents]
[Patent Literature]
[Patent Document 1] JP 2012-151019 A [Patent Document 2] JP 2013-69518 A

  A conventional press-fit terminal has a portion whose width is larger than the diameter of the connection hole. As the press-fit terminal is inserted into the connection hole, the wide portion of the press-fit terminal is compressed and deformed by the inner wall of the connection hole. The press-fit terminal is fixed to the connection hole by the repulsive force of the deformed portion.

  However, the inner diameter of the connection hole formed in the printed circuit board or the like has a certain dimensional variation. For this reason, in a press-fit terminal that is inserted while being pressed by the inner wall of the connection hole, when the inner diameter of the connection hole varies, the load generated in the press-fit terminal when inserted into the connection hole also varies. For this reason, for example, when the inner diameter of the connection hole is extremely small with respect to the width of the press-fit terminal, an excessive load is applied to the press-fit terminal during insertion, and the press-fit terminal may be bent.

  In the first aspect of the present invention, there is a connection terminal that is inserted into a connection hole provided in the electrical component and is electrically connected to the electrical component, and is provided at the base and the distal end in the longitudinal direction of the base. The conductive tip having elasticity in the width direction perpendicular to the longitudinal direction, and the tip is pressed in the width direction while being arranged at the holding position at the tip, and the tip from the holding position toward the base And a holding portion slidably provided along the portion.

  The summary of the invention does not enumerate all the features of the present invention. In addition, a sub-combination of these feature groups can also be an invention.

2 is a perspective view illustrating an example of a connection terminal 10. FIG. 2 is a perspective view illustrating an example of a connection terminal 10. FIG. 4 is a perspective view showing another example of the connection terminal 10. FIG. 2 is a schematic diagram illustrating an example of a connection terminal 10. FIG. It is a figure which shows the process example which inserts the connection terminal 10 in the connection hole 142 provided in the electrical component 140. FIG. 6 is a schematic diagram showing another example of the connection terminal 10. FIG. 6 is a schematic diagram showing another example of the connection terminal 10. FIG. 6 is a schematic diagram showing another example of the connection terminal 10. FIG. It is a figure which shows the press fit terminal as a comparative example.

  Hereinafter, the present invention will be described through embodiments of the invention, but the following embodiments do not limit the invention according to the claims. In addition, not all the combinations of features described in the embodiments are essential for the solving means of the invention.

  1 and 2 are perspective views showing an example of a connection terminal 10 according to an embodiment of the present invention. The connection terminal 10 includes a base portion 12, a tip portion 14, and a holding portion 18. The base 12 is made of a conductive material such as copper or aluminum. The base 12 has a shape extending in the longitudinal direction, such as a cylindrical shape or a rectangular parallelepiped shape. In FIG. 1, the z-axis direction is the longitudinal direction. The base 12 has an end opposite to the tip 14 and is electrically connected to, for example, an internal wiring of the semiconductor device.

  The distal end portion 14 is provided at the distal end in the longitudinal direction of the base portion 12. The distal end portion 14 is made of a conductive material such as copper or aluminum, and is provided extending in the longitudinal direction. The tip portion 14 may be formed of the same conductive material as the base portion 12. Further, the distal end portion 14 may be formed integrally with the base portion 12. The length of the distal end portion 14 may be approximately the same as that of the base portion 12.

  The tip portion 14 has elasticity in the width direction perpendicular to the longitudinal direction in at least a partial region in the longitudinal direction. In FIG. 1, the width direction is a direction in the xy plane perpendicular to the z axis. As shown in FIGS. 1 and 2, the distal end portion 14 of this example includes a plurality of separation portions 16 that are separated from each other and extend from the distal end of the base portion 12. Each separation portion 16 of this example is provided such that the inclination with respect to the z-axis can be changed according to the pressing force in the width direction, with the connection point with the tip of the base portion 12 as a fixed point. Thereby, the front-end | tip part 14 has elasticity in the width direction.

  However, the form of the tip portion 14 is not limited to one having a plurality of separation portions 16. The distal end portion 14 has elasticity in the width direction. When the holding portion 18 is in a predetermined holding position, the maximum width of the distal end portion 14 is smaller than a predetermined value, and the holding portion 18 is in a predetermined open position. Sometimes, it is only necessary to have a shape such that the maximum width of the tip 14 is larger than a certain value. The fixed value is, for example, the inner diameter of the connection hole of the electrical component into which the tip portion 14 is inserted.

  Note that the width of the distal end portion 14 indicates the maximum width among the widths in the xy plane perpendicular to the longitudinal direction at each position in the longitudinal direction. The maximum width of the tip portion 14 refers to the maximum width of the tip portion 14 at each position in the longitudinal direction. Further, the width of the tip portion 14 having the plurality of separation portions 16 refers to the outer width of the plurality of separation portions 16. That is, when the plurality of separation portions 16 are separated from each other, the width of the space between the plurality of separation portions 16 is also included in the width of the tip portion 14.

  Further, the holding position of the holding portion 18 is a position where the maximum width of the distal end portion 14 can be minimized, for example, as shown in FIG. The open position is a position where the maximum width of the tip portion 14 can be maximized, for example, as shown in FIG. The open position may be a position at which the pressing force in the width direction is not applied to the distal end portion 14 by the holding portion 18. For example, the open position is a predetermined position in the base 12.

  The holding part 18 may have a closed ring shape that covers the outer periphery of the connection terminal 10 in the xy plane. And the front-end | tip part 14 penetrates the ring-shaped inner side of the holding | maintenance part 18. As shown in FIG. However, the shape of the holding portion 18 is not limited to a closed ring shape. The holding | maintenance part 18 should just have the intensity | strength which can maintain the state where the maximum width of the front-end | tip part 14 is smaller than a fixed value (for example, state of FIG. 1). The holding part 18 may have a shape in which a part of the ring shape is opened. The holding part 18 may be formed of a conductive material or may be formed of a resin material. When the holding portion 18 is formed of a conductive material, the current path between the connection terminal 10 and the connection hole of the electrical component increases, so that the electrical characteristics are improved. Further, when the holding portion 18 is formed of a resin material, the wear of the tip portion 14 is suppressed when the holding portion slides on the tip portion 14, so that the reliability of the connection terminal 10 is improved. The holding portion 18 is provided so as to be slidable from the holding position in the direction of the base portion 12 to the open position along the distal end portion 14.

  As described above, FIG. 2 shows a state in which the holding portion 18 is arranged at the open position where the pressing force to each separation portion 16 is weakened and the maximum width of the tip portion 14 is larger than a certain value. In this state, each separation portion 16 is formed such that the distance in the width direction between each separation portion 16 increases as the distance from the base portion 12 increases in at least a part of the region in the longitudinal direction.

  In this example, the width of the distal end portion 14 increases from the distal end of the base portion 12 to the distal end of the distal end portion 14 in a state where the holding portion 18 is disposed at the open position. In the example of FIG. 2, each separation portion 16 extends linearly in the longitudinal direction, so the width increases uniformly from the tip of the base portion 12 to the tip of the tip portion 14. In another example, each separation portion 16 may have a region extending in a curved shape in the longitudinal direction. The curve may be a convex curve with respect to the outer peripheral side or a concave curve with respect to the outer peripheral side.

  On the other hand, as shown in FIG. 1, when the holding part 18 exists in a predetermined holding position, each separating part 16 is pressed inward in the width direction and deformed into a form substantially parallel to the z axis. In this example, in the state where the holding portion 18 is disposed at the holding position, the width of the tip portion 14 is constant over the entire region in the longitudinal direction. Note that the outer shape of the distal end portion 14 in the xy plane may be the same as the outer shape of the base portion 12 in a state where the holding portion 18 is disposed at a predetermined holding position.

  Further, in the state where the holding portion 18 is disposed at the holding position, the distance in the width direction between the separation portions 16 may be constant in at least a partial region of the distal end portion 14 in the longitudinal direction. In this example, when the holding unit 18 is in the holding position, the distance between the separation units 16 is constant over the entire region in the longitudinal direction. The holding position of the holding part 18 may be near the tip of the tip part 14. For example, the holding position is closer to the distal end side of the distal end portion 14 than the center of the distal end portion 14 in the longitudinal direction.

  When the connection terminal 10 in the state shown in FIG. 1 is inserted into the connection hole from the back surface of the electrical component, the holding portion 18 is pushed in the direction of the base 12 by the back surface of the electrical component, and the holding portion 18 slides. . When the holding portion 18 is moved to the open position as shown in FIG. 2, the pressing force in the width direction with respect to the tip portion 14 is released, so that the width of the tip portion 14 is increased due to elasticity. Thereby, the front-end | tip part 14 is electrically connected to a connection hole, and is fixed.

  The distance in the width direction between the separation parts 16 in the state where the holding part 18 is arranged at the open position is the distance between the separation parts 16 in the state where the holding part 18 is arranged in the holding position. It is larger than the distance in the width direction. The distance may be the distance of the tip of the separation part 16 on the side opposite to the base 12.

  When the number of the separation parts 16 is 2, there are only two contact points between the connection terminal 10 and the connection hole, and even if it is sufficiently fixed in one direction, it may not be sufficiently fixed in different directions. . On the other hand, when the number of separation parts 16 is three or more, there are three or more contact points between the connection terminal 10 and the connection hole, so that not only one direction but also different directions are sufficiently fixed. . Therefore, it is preferable that the number of the separation parts 16 in the front-end | tip part 14 is three or more. Each separation part 16 may have the same shape. For example, as shown in FIGS. 1 and 2, in the top view viewed from the z-axis direction, each separation portion 16 has a partial circular shape with a central angle of 90 degrees. Further, the shape of at least one separation portion 16 may be different. However, it is preferable that the shapes of the separating portions 16 arranged to face each other are the same. For example, the central angle of the pair of opposing separating portions 16 may be larger than the central angle of the other pair of separating portions 16.

  The connection terminal 10 shown in FIGS. 1 and 2 can be manufactured as follows. First, two orthogonal cuts are formed in the tip portion of the cylindrical conductor up to the connecting portion between the tip portion 14 and the base portion 12. As a result, four separation portions 16 are formed at the tip portion 14. And each separation part 16 is expanded so that the distance of each separation part 16 may leave | separate. You may heat-process etc. so that it may stabilize in the state after extending. Thereafter, each separation portion 16 is narrowed, and the holding portion 18 is attached to the state shown in FIG. Thereby, the connection terminal 10 can be manufactured.

  FIG. 3 is a perspective view showing another example of the connection terminal 10. In FIG. 3, the holding portion 18 is omitted, but the shape of the distal end portion 14 when the holding portion 18 is disposed at the open position is shown. The connection terminal 10 of this example is different from the connection terminal 10 shown in FIG. 1 and FIG. The other structure may be the same as that of the connection terminal 10 shown in FIGS.

  The separation part 16 of this example has a shape obtained by dividing a cylinder into a plurality of parts. The separation part 16 of this example has a wall shape whose upper surface is an arc. The thickness of each separation portion 16 may be uniform over the entire region in the longitudinal direction. Moreover, the thickness of each separation part 16 may differ in a partial region in the longitudinal direction. For example, each separation portion 16 may be formed thicker as it is closer to the base portion 12. Thereby, fixation with the isolation | separation part 16 and the base 12 can be strengthened.

  The thickness at the tip of each separation portion 16 may be less than half the radius of the cylinder. Note that the outer shape of the distal end portion 14 when the holding portion 18 is in the holding position may be the same as that of the base portion 12. Even when the holding portion 18 is in the holding position, a columnar cavity is formed between the separation portions 16.

  In the example of FIG. 1 and FIG. 2, a plurality of separation portions 16 are adjacent to each other at the connection point between the base portion 12 and the tip portion 14. It is separated. With such a structure, each separating portion 16 can be easily deformed.

  FIG. 4 is a schematic diagram illustrating an example of the connection terminal 10. FIG. 4 shows a side view of the connection terminal 10. In addition, although two separation parts 16 are shown in FIG. 4, the connection terminal 10 may have three or more separation parts 16.

  FIG. 4A shows the connection terminal 10 to which the holding portion 18 is not attached, and FIG. 4B shows the connection terminal 10 to which the holding portion 18 is attached at the holding position. As described above, in a state where the holding unit 18 is not attached, each separation unit 16 is opened. Accordingly, the distance between the separation portions 16 gradually increases toward the tip.

  On the other hand, when the holding part 18 is mounted at the holding position, each separating part 16 is converged by the inner diameter of the holding part 18. In this example, when the holding portion 18 is mounted at the holding position, the width of the distal end portion 14 is equal to the width of the base portion 12. In a state where the holding portion 18 is disposed at the holding position, the connection terminal 10 is inserted and connected to the connection hole of the electrical component.

  FIG. 5 is a diagram illustrating a process example in which the connection terminal 10 illustrated in FIG. 4B is inserted and connected to the connection hole 142 provided in the electrical component 140. First, as shown in FIG. 5A, the relative positions of the connection terminals 10 and the electrical components 140 are adjusted so that each connection terminal 10 faces the corresponding connection hole 142. At this time, the holding portion 18 is disposed at a predetermined holding position.

  In a state where the holding portion 18 is disposed at a predetermined holding position, the width W1 of the tip portion 14 is smaller than the inner diameter W3 of the connection hole 142. For example, the width W1 of the distal end portion 14 is around 1 mm. On the other hand, the inner diameter W3 of the connection hole 142 may be about 10% larger than the width W1. The holding portion 18 has a shape that cannot pass through the connection hole 142. For example, the outer diameter W <b> 2 of the holding portion 18 in this example is larger than the inner diameter W <b> 3 of the connection hole 142. In this example, the outer diameter W2 of the holding portion 18 indicates the largest of the widths in the xy plane of the holding portion 18, and the inner diameter W3 of the connection hole 142 is the smallest of the widths of the inner diameters of the connection holes 142 in the xy plane. Refers to things.

  Next, as shown in FIG. 5B, each connection terminal 10 is inserted into the connection hole 142. Since the width W <b> 1 of each distal end portion 14 is smaller than the inner diameter W <b> 3 of the connection hole 142, no load is applied to each distal end portion 14. For this reason, it can prevent that each connection terminal 10 bends at the time of insertion.

  Next, as shown in FIG. 5C, the connection terminal 10 is further inserted into the connection hole 142. Since the outer diameter W <b> 2 of the holding part 18 is larger than the inner diameter W <b> 3 of the connection hole 142, the holding part 18 cannot pass through the connection hole 142. Therefore, the holding portion 18 is pushed by the back surface of the electrical component 140 and slides on the distal end portion 14 toward the base portion 12 in conjunction with the insertion of the connection terminal 10 into the connection hole 142.

  In this example, even if the holding part 18 slides, the width W1 of the tip part 14 does not increase until the holding part 18 reaches the open position. Therefore, friction does not occur between the connection terminal 10 and the connection hole 142 when the connection terminal 10 is inserted. Therefore, the connection terminal 10 and the connection hole 142 can be protected from abrasion, and the characteristics of the connection terminal 10 and the connection hole 142 can be maintained even if the connection terminal 10 is repeatedly inserted and removed.

  Note that the width W <b> 1 of the distal end portion 14 may increase as the holding portion 18 slides toward the base portion 12. Even in this case, it is preferable that the width W1 of the distal end portion 14 is kept smaller than the inner diameter W3 of the connection hole 142 until the holding portion 18 reaches the open position.

  Next, as shown in FIG. 5D, the holding portion 18 is disposed at a predetermined open position. The maximum width in the width direction of the tip portion 14 when the holding portion 18 is in the open position (in this example, the tip width W4) is the maximum width in the width direction of the tip portion 14 when the holding portion 18 is in the holding position ( In this example, it is larger than the width W1) of the tip.

  Further, the maximum width W4 in the width direction of the distal end portion 14 when the holding portion 18 is in the open position is larger than the inner diameter W3 of the connection hole 142. The maximum width W4 may be about 10% to 100% larger than the maximum width W1. Further, it is preferable that the shape of the distal end portion 14 is determined so that at least a part of the distal end portion 14 contacts the inner wall of the connection hole 142 when the holding portion 18 is in the open position.

  When the holding unit 18 is in the open position, the holding unit 18 may contact both the back surface of the electrical component 140 and the connection terminal 10. When at least the surface of the holding portion 18 is formed of a conductive material, the holding portion 18 also functions as a current path between the electric component 140 and the connection terminal 10, and thus the electrical connection is reinforced by the holding portion 18. Can do.

  By such a process, when the connection terminal 10 is inserted into the connection hole 142, the connection terminal 10 and the connection hole 142 can be protected. For this reason, the connection terminal 10 can be repeatedly inserted into and removed from the connection hole 142. When the connection terminal 10 is pulled out from the connection hole 142, it is preferable to use a jig that pulls out the connection terminal 10 from the connection hole 142 while applying a pressing force inside the width direction to the tip end portion 14. The jig preferably has a structure in which the holding portion 18 is slid toward the holding position as the connection terminal 10 is pulled out from the connection hole 142.

  FIG. 6 is a schematic diagram illustrating another example of the connection terminal 10. The connection terminal 10 of this example further includes a stopper 20 in the structure of any one of the connection terminals 10 shown in FIGS. The width of the connection terminal 10 in the portion where the stopper 20 is provided is larger than the inner diameter of the holding portion 18.

  The stopper 20 is provided at a position adjacent to the opening position of the holding portion 18 and away from the distal end portion 14. The stopper 20 is provided at a position that prevents the holding portion 18 from sliding further to the base 12 side than the open position when the connection terminal 10 is inserted into the connection hole 142. Thereby, when the electrical component and the connection terminal 10 are connected, the holding portion 18 can be held at a predetermined open position. Therefore, it can be used for alignment of the electrical component in the Z-axis direction. The stopper 20 may be provided on the base 12.

  FIG. 7 is a schematic diagram illustrating another example of the connection terminal 10. The connection terminal 10 of this example is different from the configuration of any of the connection terminals 10 described in FIGS. 1 to 6 in that it has a tip region 24. The other structure may be the same as any one of the connection terminals 10 described in FIGS.

  The tip region 24 refers to the end of the tip 14 opposite to the base 12. The distal end region 24 of this example decreases in width as it moves away from the base 12 in a state where the holding portion 18 is disposed at the holding position. With such a configuration, the connection terminal 10 can be easily inserted into the connection hole 142.

  FIG. 8 is a schematic diagram illustrating another example of the connection terminal 10. The connection terminal 10 of this example is different from the configuration of any of the connection terminals 10 described in FIGS. 1 to 7 in that it has a flat region 28. The other structure may be the same as any one of the connection terminals 10 described in FIGS.

  The flat region 28 is provided in a partial region in the longitudinal direction of the distal end portion 14. The flat region 28 in this example is provided at a connection portion with the base 12. The flat region 28 has a constant width in a state where the distal end portion 14 is not pressed by the holding portion 18. In this example, the distal end portion 14 further includes a distal end region 26 extending from the flat region 28. The distal end region 26 increases in width as it moves away from the base 12 in a state where the holding portion 18 is disposed at the open position.

  The shape of the distal end portion 14 is determined so that the width of the distal end region 26 is smaller than the inner diameter of the connection hole 142 when the holding portion 18 is disposed at the holding position. In this example, the flat region 28 is the opening position of the holding unit 18. The stopper 20 prevents the holding portion 18 from sliding toward the base portion 12 with respect to the flat region 28.

  With such a configuration, the distal end portion 14 can be given elasticity in the width direction even when the holding portion 18 is opened. For this reason, even when the inner diameter of the holding portion 18 and the width of the tip portion 14 vary, it is easy to slide the holding portion 18 to the open position.

  FIG. 9 is a view showing a press-fit terminal as a comparative example. FIG. 9A shows the press-fit terminal before being inserted into the connection hole 142, and FIG. 9B shows the press-fit terminal in a state of being inserted into the connection hole 142.

  The press-fit terminal 210 of this example has a base 212 and two separation parts 216. The maximum width of the two separation portions 216 is larger than the inner diameter of the connection hole 142. The press-fit terminal 210 is inserted into the connection hole 142 while being pressed by the inner wall of the connection hole 142. For this reason, depending on the dimensional variation of the connection hole 142 and the press-fit terminal 210, a large load is applied to the terminal and the connection hole 142. In addition, since the terminal is inserted while friction is generated between the two separating portions 216 and the connection hole 142, the connection reliability is lowered when the terminal is repeatedly inserted and removed.

  On the other hand, according to the connection terminal 10 described with reference to FIGS. 1 to 8, it is possible to reduce a load when the connection terminal 10 is inserted. Even if the connection terminal 10 is repeatedly inserted and removed, the connection reliability can be maintained. Moreover, in the said embodiment, the insertion process of the connecting terminal 10, the sliding process of the holding | maintenance part 18, and the opening process of the front-end | tip part 14 are performed simultaneously and interlockingly. Therefore, compared with the case where the above steps are performed separately, the work efficiency in the connection step between the connection terminal and the electrical component is improved.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

  The order of execution of each process such as operations, procedures, steps, and stages in the apparatus, system, program, and method shown in the claims, the description, and the drawings is particularly “before” or “prior to”. It should be noted that the output can be realized in any order unless the output of the previous process is used in the subsequent process. Regarding the operation flow in the claims, the description, and the drawings, even if it is described using “first”, “next”, etc. for convenience, it means that it is essential to carry out in this order. It is not a thing.

DESCRIPTION OF SYMBOLS 10 ... Connection terminal, 12 ... Base part, 14 ... Tip part, 16 ... Separation part, 18 ... Holding part, 20 ... Stopper, 140 ... Electrical component, 142 ...・ Connection hole, 210... Press fit terminal, 212... Base, 216.

Claims (15)

A connection terminal that is inserted into a connection hole provided in the electrical component and electrically connected to the electrical component,
The base,
A conductive tip provided at the tip in the longitudinal direction of the base, and having elasticity in the width direction perpendicular to the longitudinal direction;
A holding portion provided so as to be slidable along the tip portion from the holding position toward the base portion while pressing the tip portion in the width direction in a state of being arranged at a holding position in the tip portion;
A connection terminal comprising: The holding part slides from the holding position to the open position;
The maximum width in the width direction of the tip portion when the holding portion is in the open position is larger than the maximum width in the width direction of the tip portion when the holding portion is in the holding position,
The connection terminal according to claim 1. The distal end portion has a plurality of separation portions separated from each other extending from the distal end of the base portion,
The distance in the width direction between the separation parts in a state where the holding part is arranged in the open position is the width direction between the separation parts in a state where the holding part is arranged in the holding position. Greater than the distance of the
The connection terminal according to claim 2. The holding part has an annular shape through which the tip part passes,
The connection terminal as described in any one of Claim 1 to 3. The tip has three or more separation parts,
The connection terminal according to claim 3. After the holding part slides to the open position, further comprising a stopper for holding the holding part in the open position.
The connection terminal according to claim 2 or 3. In the state where the holding portion is disposed in the open position, in at least a part of the region in the longitudinal direction, the distance in the width direction between the respective separation portions increases as the distance from the base portion increases.
The connection terminal according to claim 3 or 5. In the state where the holding portion is disposed at the holding position, the distance in the width direction between the respective separation portions is constant in at least a part of the region in the longitudinal direction.
The connection terminal according to claim 7. The separation portions are provided apart from each other at the tip of the base portion.
The connection terminal according to claim 7 or 8. The distal end portion increases in width from the distal end of the base portion to the distal end of the distal end portion in a state where the holding portion is disposed in the open position.
The connection terminal as described in any one of Claim 7 to 9. 11. The connection terminal according to claim 7, wherein the distal end portion has a distal end region whose width decreases as the distance from the base portion increases in a state where the holding portion is disposed at the holding position. The connection according to any one of claims 7 to 11, wherein the distal end portion has a flat region having a constant width in a partial region in the longitudinal direction in a state where the holding portion is disposed at the open position. Terminal. The holding part is made of a conductive material,
The connection terminal according to claim 4. The holding part is formed of a resin material,
The connection terminal according to claim 4. The stopper is provided on the base,
The connection terminal according to claim 6.

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