JP5629346B2 - Electrical connection terminal and connector provided with the same - Google Patents

Description

  The present invention relates to an electrical connection terminal used for, for example, a connector for connecting substrates to each other and electrically connected to a counterpart terminal, and a connector provided with the same.

  Conventionally, this type of connector includes a connector body into which a connection portion of the mating connector is inserted, and a plurality of terminals arranged in the connector body at intervals in the width direction. It is known that when a terminal is inserted, each terminal of the connector main body comes into contact with the mating terminal while being elastically deformed in a direction orthogonal to the insertion direction of the connection object (for example, Patent Documents). 1).

  The terminals used in this connector are provided with a first contact portion and a first contact portion that are arranged at an interval in the insertion direction of the counterpart terminal, and in the contact direction with the counterpart terminal. A first elastic piece portion that can be elastically deformed, a second contact portion, and a second elastic piece portion that is elastically deformable in a contact direction with the counterpart terminal, are provided, and the first and second contacts The part comes into contact with the same position in the width direction of the mating terminal.

  That is, in the terminal, when the mating terminal is inserted, the first contact portion comes into contact with the mating terminal before the second contact portion. Even if it is adhered, foreign matter is removed by the first contact portion, and poor conduction between the second contact portion and the counterpart terminal can be prevented.

JP 2002-175847 A

  By the way, in the said terminal, since the 1st and 2nd elastic piece part is formed so that it may each diagonally extend toward the other party terminal from a terminal main body, one of the 1st and 2nd elastic piece part is elastic. When it is deformed, the other elastic piece is also displaced in the same direction. For this reason, if the 2nd contact part contacts the other party terminal after the 1st contact part contacts the other party terminal, the 1st elastic piece part will also be displaced in the same direction as the 2nd elastic piece part. Therefore, there is a problem that the contact pressure of the first contact portion with respect to the counterpart terminal is lowered, and the foreign matter removing effect by the first contact portion cannot be sufficiently obtained.

  The present invention has been made in view of the above-described problems, and the object of the present invention is that even if a connection object comes into contact with the first contact portion and then the counterpart terminal comes into contact with the second contact portion. An object of the present invention is to provide an electrical connection terminal that does not reduce the contact pressure of the first contact portion with respect to the connection object and a connector including the same.

  In order to achieve the above object, the present invention is used in a connector having a fixed housing fixed to a substrate and a movable housing movable with respect to the fixed housing, and is held by the fixed housing and the movable housing to be connected. In the electrical connection terminal that contacts the connection object by elastically deforming in a direction perpendicular to the insertion direction of the object, the first and second contact portions that contact the connection object insert the connection object. The first contact portion is provided at a distance in the direction, and the first contact portion is brought into contact with the connection object before the second contact portion when the connection object is inserted, and the first fixed to the movable housing. A fixing portion, an elastic piece formed between the contact portion and the first fixing portion, a first fulcrum provided near the first fixing portion on the elastic piece, and an elastic piece Second support provided near the contact portion A first fixed piece portion fixed to the fixed housing, and a movable portion formed between the first fixed piece portion and the second fixed piece portion so as to be elastically deformable. When the contact portion is pressed in the direction opposite to the contact direction with the connection object, the elastic piece portion is elastically deformed with the first fulcrum portion serving as a fulcrum, so that the second contact portion is more relative to the first contact portion. When the second contact part is displaced in the direction opposite to the contact direction with the connection object, the elastic piece part is elastically deformed with the second fulcrum part as a fulcrum, It forms so that a 1st contact part may be displaced to a contact direction with a connection target object relatively rather than a 2nd contact part.

  Thus, when the connection object comes into contact with the first contact portion, the elastic piece portion elastically deforms in the direction opposite to the contact direction with the connection object with the first fulcrum portion serving as a fulcrum. Is displaced in the direction of contact with the connection object relative to the first contact part, so that the second contact part protrudes in the contact direction with the connection object rather than the first contact part. A sufficient amount of protrusion of the second contact portion for contacting the connection object with the contact portion is ensured. Next, when the connection object comes into contact with the second contact part, the elastic piece part elastically deforms in the direction opposite to the contact direction with the connection object with the second fulcrum part as a fulcrum. Is pressed while being in contact with the connection object, but the first contact portion is about to be displaced in the contact direction with the connection object relative to the second contact portion in a state of being in contact with the connection object. Therefore, the contact pressure of the first contact portion with respect to the connection object increases. Thereby, even if a connection target object contacts a 2nd contact part after a connection target object contacts a 1st contact part, the contact pressure of the 1st contact part with respect to a connection target object does not fall. .

  According to the present invention, even if the connection object comes into contact with the second contact part after the connection object comes into contact with the first contact part, the contact pressure of the first contact part with respect to the connection object is reduced. Therefore, the foreign matter removing effect by the first contact portion can be sufficiently obtained.

The perspective view which shows 1st Embodiment of the connector provided with the terminal for electrical connection of this invention Side sectional view of connector Terminal perspective view Side view of main part of terminal Side sectional view showing the connection process with the mating connector Side sectional view showing the connection with the mating connector Terminal operation explanatory diagram Terminal operation explanatory diagram Operational diagram of the terminal when in contact with the mating terminal Operational diagram of the terminal when in contact with the mating terminal The perspective view which shows 2nd Embodiment of the connector provided with the terminal for electrical connection of this invention. Side sectional view of connector Terminal side view Side view of main part of terminal Side sectional view showing the connection process with the mating connector Side sectional view showing the connection with the mating connector Terminal operation explanatory diagram Terminal operation explanatory diagram Operational diagram of the terminal when in contact with the mating terminal Operational diagram of the terminal when in contact with the mating terminal

  FIGS. 1 to 10 show a first embodiment of the present invention, for example, a connector used to connect a pair of printed circuit boards.

  The connector 10 is fixed to a substrate (not shown) and used by connecting to a mating connector 20 fixed to another substrate.

  The connector 10 includes a fixed housing 11 fixed to one substrate (not shown), a movable housing 12 movable with respect to the fixed housing 11, and a plurality of terminals 13 held by the fixed housing 11 and the movable housing 12. The terminals 13 are arranged at intervals in the width direction of the connector and are arranged in two front and rear rows.

  The fixed housing 11 is made of a synthetic resin molded product, and is formed in a substantially rectangular parallelepiped shape having a small height dimension with respect to a width dimension and a depth dimension. The 1st fixed housing 11 consists of the front part 11a, the back part 11b, and the right-and-left side part 11c, The center part is opening upwards and downwards. In addition, the front surface portion 11a and the back surface portion 11b are provided with a plurality of fixing holes 11d for fixing the terminals 13.

  The movable housing 12 is made of a synthetic resin molded product, and is formed in a substantially rectangular parallelepiped shape having a small height dimension with respect to a width dimension and a depth dimension. The movable housing 12 is formed in an outer shape smaller than the inner shape of the fixed housing 11, and is arranged in the fixed housing 11 so as to be movable in the front-rear direction and the width direction. The movable housing 12 is formed in a hollow shape having an open upper surface, and a plurality of fixing holes 12a for fixing each terminal 13 are provided on the front side and the back side thereof.

  Each terminal 13 is made of a conductive metal, and the front row side terminal 13 and the back row side terminal 13 are arranged at intervals in the front-rear direction. The terminal 13 includes a contact portion 13a that comes into contact with a mating terminal as a connection object from the front-rear direction (a direction orthogonal to the insertion direction of the mating terminal), and a first fixed piece portion 13b that is fixed to the movable housing 12. The elastic piece 13c formed between the contact portion 13a and the first fixed piece 13b, the second fixed piece 13d fixed to the fixed housing 11, the first fixed piece 13b and the first fixed piece 13b A movable part 13e formed between the two fixed pieces 13d so as to be elastically deformable, and a board connecting part 13f connected to the board. The first terminal 13 on the front row side and the terminal 13 on the rear line side are It arrange | positions so that the contact parts 13a may mutually oppose.

  In the contact portion 13a, the first contact portion 13a-1 and the second contact portion 13a-2 that are in contact with the terminals of the mating connector 20 are spaced apart from each other in the vertical direction (insertion direction of the mating terminal). When the mating terminal is inserted, the first contact portion 13a-1 comes into contact with the mating terminal before the second contact portion 13a-2. The contact portion 13a is formed in a bifurcated shape, and first and second contact portions 13a-1 and 13a-2 are provided at the tip of the bifurcated portion, respectively.

  The first fixed piece portion 13 b is formed to extend upward, and is fixed to the movable housing 12 by being press-fitted into the fixed hole 12 a of the movable housing 12.

  The elastic piece portion 13c extends in the front-rear direction from the lower end side of the first fixed piece portion 13b, bends upward in a substantially L shape, extends in the up-down direction to above the contact portion 13a, and further downwards. It is formed to be bent in an inverted U shape and extend to the upper end of the contact portion 13a. The elastic piece portion 13c includes a first fulcrum portion 13c-1 provided near the first fixed piece portion 13b (substantially L-shaped bent portion) and a contact portion 13a (reverse U-shaped bent portion). And a second fulcrum part 13c-2 provided on the fulcrum, and elastically deforms in the front-rear direction around the fulcrum parts 13c-1 and 13c-2.

  The second fixed piece portion 13 d is formed to extend upward, and is fixed to the fixed housing 11 by being press-fitted into the fixed hole 11 d of the fixed housing 11.

  The movable portion 13e is bent so as to form a substantially Ω shape from the lower end of the first fixed piece portion 13b to the lower end of the second fixed piece portion 13d, and is elastically deformed in the front-rear direction, the width direction, and the vertical direction. It is formed to do.

  The board connecting part 13f is formed so as to extend from the lower end of the second fixed piece part 13d toward the outside in the front-rear direction of the fixed housing 11, and the tip side thereof is soldered to the board.

  In the terminal 13, the second fulcrum part 13 c-2, the first contact part 13 a-1, the second contact part 13 a-2, One fulcrum part 13c-1 is sequentially arranged. In this case, as shown in FIG. 4, the distance L1 from the second fulcrum part 13c-2 to the second contact point part 13a-2 is the second contact point part 13c-2 to the first contact point part 13a-1. It is longer than the distance L2. Further, the first contact portion 13a is located above the intermediate point P between the first and second fulcrum portions 13c-1 and 13c-2 in the insertion direction of the mating terminal (on the second fulcrum portion 13c-2 side). -1 is disposed, and the second contact portion 13a-2 is disposed below the intermediate point P (on the first fulcrum portion 13c-1 side). In the intermediate point P, the vertical distance from the first fulcrum part 13c-1 to the intermediate point P is H1, and the vertical distance from the second fulcrum part 13c-2 to the intermediate point P is H2. In this case, the position is such that H1 = H2.

  Accordingly, as shown in FIG. 7, when the first contact portion 13a-1 is pressed in the direction opposite to the contact direction with the counterpart terminal (X1 direction), the elastic piece portion 13c pushes the first fulcrum portion 13c-1. By elastically deforming the fulcrum in the X1 direction, the contact portion 13a itself is displaced in the X1 direction. However, the second contact portion 13a-2 of the contact portion 13a is relatively opposite to the first contact portion 13a-1. It is displaced in the direction of contact with the side terminal (X2 direction) and protrudes by α1 in the X2 direction. Further, as shown in FIG. 8, when the second contact portion 13a-2 is pressed in the X1 direction, the elastic piece portion 13c is elastically deformed in the X1 direction with the second fulcrum portion 13c-2 as a fulcrum. 13a itself is displaced in the X1 direction, but the first contact portion 13a-1 of the contact portion 13a is displaced in the contact direction with the counterpart terminal relative to the second contact portion 13a-2, and in the X2 direction. It protrudes by α2. At that time, the distance L1 from the second fulcrum part 13c-2 to the second contact part 13a-2 is longer than the distance L2 from the second fulcrum part 13c-2 to the first contact part 13a-1. Therefore, the first and second contact portions 13a-1 and 13a-2 that are displaced around the same fulcrum (second fulcrum portion 13c-2) are displaced by the displacement amount of the first contact portion 13a-1. S1 becomes smaller than the displacement amount S2 of the second contact portion 13a-2, and the first contact portion 13a-1 is more relative to the second contact portion 13a-2 by the difference α2 between the respective displacement amounts S1 and S2. Therefore, it will be displaced in the contact direction with the counterpart terminal.

  Further, since the first contact portion 13a-1 is arranged on the second fulcrum portion 13c-2 side with respect to the intermediate point P between the first and second fulcrum portions 13c-1 and 13c-2, The distance from the first contact part 13a-1 to the first fulcrum part 13c-1 is longer than the distance from the first contact part 13a-1 to the second fulcrum part 13c-2. When the contact portion 13a-1 is pressed, the elastic piece portion 13c is easily elastically deformed with the first fulcrum portion 13c-1 as a fulcrum. On the other hand, since the second contact portion 13a-2 is disposed closer to the first fulcrum portion 13c-1 than the intermediate point P, the second contact portion 13a-2 to the first fulcrum portion 13c-1 are arranged. The distance from the second contact portion 13a-2 to the second fulcrum portion 13c-2 is longer than the distance from the first contact portion 13a-2 to the elastic piece portion 13c. It becomes easy to elastically deform the fulcrum part 13c-2 of 2 as a fulcrum.

  The mating connector 20 includes a housing 21 that fits into the connector 10 and a plurality of mating terminals 22 that are held in the housing 21 at intervals in the width direction. The protrusion part 21a inserted between these terminals 13 is provided.

  The mating terminals 22 are arranged at intervals in the width direction of the connector, and are arranged in two front and rear rows. The mating terminal 22 includes a contact portion 22a that contacts the terminal 13 of the connector 10 and a board connecting portion 22b that is connected to the other board (not shown). The front row side terminal 22 and the back row side terminal 22 are provided. Are arranged so that the contact portions 22a are opposite to each other with the protruding portion 21a interposed therebetween. The contact portion 22a is formed to extend in the vertical direction along the protruding portion 21a, and is fixed to the protruding portion 21a. The board connecting portion 22b is formed so as to extend outward in the front-rear direction along the upper surface of the housing 21 from the upper end of the contact portion 22a, and the tip side thereof is soldered to the board.

  As shown in FIG. 5, the connector 10 is formed by fitting the housing 21 of the mating connector 20 to the movable housing 12, so that the contact portion 13a of the first terminal 13 on the front row side and the rear row side as shown in FIG. The protruding portion 21a of the mating connector 20 is inserted between the terminal 13 and the contact portion 13a of the terminal 13, so that the terminals 13 of the connector 10 come into contact with the mating terminals 22 of the mating connector 20, respectively. Connected to each other.

  At that time, the first and second contact portions 13a-1 and 13a-2 of the terminal 13 contact the same position in the width direction of the counterpart terminal 22 with an interval in the insertion direction of the counterpart terminal 22. The other terminal 22 contacts the terminal 13 at two points. That is, when the mating terminal 22 is inserted into the movable housing 12, the first contact portion 13a-1 of the terminal 13 contacts the contact portion 22a of the mating terminal 22 before the second contact portion 13a-2. To do. As a result, even if foreign matter such as dust or dirt adheres to the contact portion 22a of the counterpart terminal 22, the second contact portion is removed after the foreign matter is removed by the first contact portion 13a-1 of the terminal 13. Since 13a-2 contacts, the 2nd contact part 13a-2 contacts the other party terminal 22 reliably, without producing the conduction defect by a foreign material.

  Further, as described above, when the terminal 13 of the connector 10 presses the first contact portion 13a-1 in the direction opposite to the contact direction with the counterpart terminal 22, the second contact portion 13a-2 becomes the first contact portion 13a-2. Since it is displaced in the contact direction with the counterpart terminal 22 relative to the contact portion 13a-1, the counterpart terminal 22 is connected to the first contact portion 13a-1 of the terminal 13 as shown in FIG. The elastic contact portion 13c is elastically deformed in the direction opposite to the contact direction with the counterpart terminal 22 with the first fulcrum portion 13c-1 as a fulcrum, so that the second contact portion 13a-2 becomes the first contact point. It is displaced in the contact direction with the mating connector 20 relative to the contact portion 13a-1. As a result, the second contact portion 13a-2 protrudes in the X2 direction by α1 in FIG. 7 with respect to the first contact portion 13a-1, so that the counterpart terminal 22 contacts the second contact portion 13a-2. A sufficient amount of protrusion of the second contact portion 13a-2 is ensured.

  Next, as shown in FIG. 10, when the mating terminal 22 comes into contact with the second contact portion 13a-2 of the terminal 13, the elastic piece portion 13c is connected to the mating terminal 22 with the second fulcrum portion 13c-2 as a fulcrum. The second contact portion 13 a-2 is pressed while being in contact with the mating terminal 22 by elastically deforming in a direction opposite to the contact direction. At that time, as described above, when the terminal 13 presses the second contact portion 13a-2 in the direction opposite to the contact direction with the mating terminal 22, the first contact portion 13a as shown by the broken line arrow in the figure. -1 tends to be displaced in the direction of contact with the counterpart terminal 22 relative to the second contact portion 13a-2 in a state where it contacts the counterpart terminal 22, the first contact portion with respect to the counterpart terminal 22 The contact pressure of 13a-1 increases. Thereby, even if the other party terminal 22 contacts the 2nd contact part 13a-2 after the other party terminal 22 contacts the 1st contact part 13a-1, the 1st contact part with respect to the other party terminal 22 The contact pressure of 13a-1 does not decrease.

  Thus, according to the present embodiment, when the first contact portion 13a-1 of the terminal 13 is pressed in the direction opposite to the contact direction with the counterpart terminal 22, the elastic piece portion 13c becomes the first fulcrum portion 13c-. 1 is elastically deformed at the fulcrum, so that the second contact portion 13a-2 of the terminal 13 is displaced in the contact direction with the counterpart terminal 22 relative to the first contact portion 13a-1, and the terminal 13 When the second contact portion 13a-2 is pressed in the direction opposite to the contact direction with the counterpart terminal 22, the elastic piece portion 13c elastically deforms with the second fulcrum portion 13c-2 as a fulcrum, thereby Since the portion 13a-1 is displaced in the contact direction with the counterpart terminal 22 relative to the second contact portion 13a-2, the counterpart terminal 22 contacts the first contact portion 13a-1. After that, even if the counterpart terminal 22 contacts the second contact portion 13a-2, Without lowering the first contact pressure of the contact portion 13a-1 for the terminal 22, it is possible to obtain the first foreign matter removing effect by the contact portions 13a-1 sufficiently.

  Further, the second fulcrum part 13c-2, the first contact part 13a-1, the second contact part 13a-2, and the first fulcrum part 13c-1 are sequentially arranged in the insertion direction of the mating terminal 22. The distance L1 from the second fulcrum part 13a-2 to the second contact point part 13a-2 is longer than the distance L2 from the second fulcrum part 13c-2 to the first contact point part 13a-1. Therefore, by pressing the second contact portion 13a-2 in the direction opposite to the contact direction with the counterpart terminal 22, the first contact portion 13a-1 is surely connected to the second contact portion 13a-2. Can be relatively displaced in the contact direction with the counterpart terminal 22, which is extremely advantageous in increasing the contact pressure of the first contact portion 13 a-1 with the counterpart terminal 22.

  Further, the first contact portion 13a-1 is closer to the second fulcrum portion 13c-2 than the intermediate point P between the first and second fulcrum portions 13c-1 and 13c-2 in the insertion direction of the mating terminal 22. Since the second contact portion 13a-2 is disposed closer to the first fulcrum portion 13c-1 than the intermediate point P, when the first contact portion 13a-1 is pressed, the elastic piece portion 13c is The first fulcrum part 13c-1 is easily elastically deformed with the fulcrum as a fulcrum, and when the second contact part 13a-2 is pressed, the elastic piece part 13c is easily elastically deformed with the second fulcrum part 13c-2 as a fulcrum. This is extremely advantageous in achieving the above operation of the terminal 13.

  Further, since the contact portion 13a of the terminal 13 is formed in a bifurcated shape having the first and second contact portions 13a-1 and 13a-2 at the tip portion, the first and second contact portions 13a-1, 13 a-2 can be displaced integrally with each other, which is extremely advantageous in achieving the operation of the terminal 13.

  FIGS. 11 to 20 show a second embodiment of the present invention, which shows a connector used for connecting a pair of printed circuit boards, for example.

  The connector 30 is fixed to a substrate (not shown) and used by connecting to a mating connector 40 fixed to another substrate.

  The connector 30 includes a fixed housing 31 fixed to one substrate (not shown), a movable housing 32 movable with respect to the fixed housing 31, and a plurality of terminals 33 held by the fixed housing 31 and the movable housing 32. The terminals 33 are arranged at intervals in the width direction of the connector and are arranged in two rows.

  The fixed housing 31 is made of a synthetic resin molded product, and is formed in a substantially rectangular parallelepiped shape having a small height dimension with respect to a width dimension and a depth dimension. The 1st fixed housing 31 consists of the front part 31a, the back part 31b, and the right-and-left side part 31c, The center part is opening upwards and downwards. In addition, a plurality of fixing grooves 31d for fixing each terminal 33 are provided in the front surface portion 31a and the back surface portion 31b.

  The movable housing 32 is made of a synthetic resin molded product, and is formed in a substantially rectangular parallelepiped shape having a small height dimension with respect to a width dimension and a depth dimension. The movable housing 32 is formed in an outer shape smaller than the inner shape of the fixed housing 31 and is disposed in the fixed housing 31 so as to be movable in the front-rear direction and the width direction. The movable housing 32 is formed in a hollow shape having an open top surface, and a protruding portion 32a protruding upward from the center portion in the front-rear direction of the bottom surface is provided therein. The protrusion 32 a is formed in a flat shape that is long in the width direction of the movable housing 32, and a plurality of terminal holes 32 b that hold the respective terminals 33 are provided on the front and back surfaces thereof.

  Each terminal 33 is made of a conductive metal, and the front row side terminal 33 and the back row side terminal 33 are arranged at intervals in the front-rear direction. The terminal 33 includes a contact portion 33a that comes into contact with a mating terminal as a connection object from the front-rear direction (a direction orthogonal to the insertion direction of the mating terminal), and a first fixed piece portion 33b that is fixed to the movable housing 32. The elastic piece 33c formed between the contact portion 33a and the first fixed piece 33b, the second fixed piece 33d fixed to the fixed housing 31, the first fixed piece 33b and the first fixed piece 33b A movable part 33e formed between the two fixed piece parts 33d so as to be elastically deformable, and a board connection part 33f connected to the board. The first terminal 33 on the front row side and the terminal 33 on the rear line side are It arrange | positions so that the contact parts 33a may mutually oppose.

  In the contact portion 33a, the first contact portion 33a-1 and the second contact portion 33a-2 that contact the terminal of the mating connector 40 are spaced apart from each other in the vertical direction (insertion direction of the mating terminal). When the mating terminal is inserted, the first contact portion 33a-1 comes into contact with the mating terminal before the second contact portion 33a-2. The contact portion 33a is formed in two mountain shapes, and first and second contact portions 33a-1 and 33a-2 are provided at the top portions of the respective mountain portions.

  The first fixed piece portion 33 b is formed to extend upward, and is fixed to the movable housing 32 by being press-fitted into the lower end side of the terminal hole 32 b of the movable housing 32.

  The elastic piece portion 33c extends upward from the upper end side of the first fixed piece portion 33b, bends so as to be inclined in the front-rear direction, extends obliquely upward above the contact portion 33a, and further downwards. It is formed to be bent in an inverted U shape and extend to the upper end of the contact portion 33a. The elastic piece portion 33c includes a first fulcrum portion 33c-1 provided near the first fixed piece portion 33b (substantially L-shaped bent portion) and a contact portion 33a (an inverted U-shaped bent portion). The second fulcrum part 33c-2 provided on the fulcrum is elastically deformed in the front-rear direction around the fulcrum parts 33c-1 and 33c-2.

  The second fixed piece portion 33 d is formed to extend upward, and is fixed to the fixed housing 31 by being press-fitted into the fixed groove 31 d of the fixed housing 31.

  The movable portion 33e is bent so as to form an inverted U shape from the lower end of the first fixed piece portion 33b to the lower end of the second fixed piece portion 33d, and is elastic in the front-rear direction, the width direction, and the vertical direction. It is formed to be deformed.

  The board connecting part 33f is formed so as to extend from the lower end of the second fixed piece part 33d toward the outer side in the front-rear direction of the fixed housing 31, and the tip side thereof is soldered to the board.

  In the terminal 33, the second fulcrum part 33c-2, the first contact part 33a-1, the second contact part 33a-2, and the second contact part 33c-2 from the top to the bottom with respect to the insertion direction of the mating terminal. One fulcrum part 33c-1 is sequentially arranged. In this case, as shown in FIG. 14, the distance L1 from the second fulcrum portion 33c-2 to the second contact portion 33a-2 is the second contact point portion 33c-2 to the first contact portion 33a-1. It is longer than the distance L2. The first contact portion 33a is located above the intermediate point P between the first and second fulcrum portions 33c-1 and 33c-2 in the insertion direction of the mating terminal (on the second fulcrum portion 33c-2 side). -1 is disposed, and the second contact portion 33a-2 is disposed below the intermediate point P (on the first fulcrum portion 33c-1 side). In the intermediate point P, the vertical distance from the first fulcrum part 33c-1 to the intermediate point P is H1, and the vertical distance from the second fulcrum part 33c-2 to the intermediate point P is H2. In this case, the position is such that H1 = H2.

  Accordingly, as shown in FIG. 17, when the first contact portion 33a-1 is pressed in the direction opposite to the contact direction with the counterpart terminal (X1 direction), the elastic piece portion 33c pushes the first fulcrum portion 33c-1. By elastically deforming the fulcrum in the X1 direction, the contact portion 33a itself is displaced in the X1 direction, but the second contact portion 33a-2 of the contact portion 33a is relatively opposite to the first contact portion 33a-1. It is displaced in the direction of contact with the side terminal (X2 direction) and protrudes by α1 in the X2 direction. Further, as shown in FIG. 18, when the second contact portion 33a-2 is pressed in the X1 direction, the elastic piece portion 33c is elastically deformed in the X1 direction with the second fulcrum portion 33c-2 as a fulcrum. 33a itself is displaced in the X1 direction, but the first contact portion 33a-1 of the contact portion 33a is displaced in the contact direction with the counterpart terminal relative to the second contact portion 33a-2, and in the X2 direction. It protrudes by α2. At that time, the distance L1 from the second fulcrum part 33c-2 to the second contact part 33a-2 is longer than the distance L2 from the second fulcrum part 33c-2 to the first contact part 33a-1. Therefore, the first and second contact portions 33a-1 and 33a-2 that are displaced around the same fulcrum (second fulcrum portion 33c-2) are displaced by the displacement amount of the first contact portion 33a-1. S1 becomes smaller than the displacement amount S2 of the second contact portion 33a-2, and the first contact portion 33a-1 is relatively more than the second contact portion 33a-2 by the difference α2 between the respective displacement amounts S1 and S2. Therefore, it will be displaced in the contact direction with the counterpart terminal.

  Further, since the first contact portion 33a-1 is arranged on the second fulcrum portion 33c-2 side with respect to the intermediate point P between the first and second fulcrum portions 33c-1 and 33c-2, The distance from the first contact part 33a-1 to the first fulcrum part 33c-1 is longer than the distance from the first contact part 33a-1 to the second fulcrum part 33c-2. When the contact portion 33a-1 is pressed, the elastic piece portion 33c is easily elastically deformed with the first fulcrum portion 33c-1 as a fulcrum. On the other hand, since the second contact portion 33a-2 is disposed closer to the first fulcrum portion 33c-1 than the intermediate point P, the second contact portion 33a-2 to the first fulcrum portion 33c-1 are arranged. The distance from the second contact portion 33a-2 to the second fulcrum portion 33c-2 becomes longer than the distance until the second contact portion 33a-2 is pressed. The second fulcrum part 33c-2 is easily elastically deformed with the fulcrum as a fulcrum.

  The mating connector 40 includes a housing 41 that fits into the connector 30, and a plurality of mating terminals 42 that are held in the housing 41 at intervals in the width direction. A recess 41a is provided in which each terminal 33 is inserted.

  The mating terminals 42 are arranged at intervals in the width direction of the connector and are arranged in two front and rear rows. The mating terminal 42 includes a contact part 42a that contacts the terminal 33 of the connector 30, a fixed piece part 42b that is fixed to the housing 41, and a board connection part 42c that is connected to the other board (not shown). The front row side terminal 42 and the rear row side terminal 42 are arranged so that the contact portions 42a face each other with a gap therebetween. The contact portion 42a is formed to extend in the vertical direction along the inner surface of the recess 41a. Further, the fixed piece portion 42 b is fixed to the housing 41 by being press-fitted into a fixed hole 41 b provided in the housing 41. The board connecting portion 42c is formed so as to extend outward in the front-rear direction along the upper surface of the housing 41 from the upper end of the contact portion 42a, and the tip side thereof is soldered to the board.

  As shown in FIG. 15, the connector 30 is configured such that the housing 41 of the mating connector 40 is fitted to the movable housing 32, whereby the contact portion 33a of the first terminal 33 on the front row side and the rear row side as shown in FIG. The contact portions 33a of the terminals 33 are inserted into the recesses 41a of the mating connector 40, the terminals 33 of the connector 30 are brought into contact with the mating terminals 42 of the mating connector 40, and the connectors 30, 40 are connected to each other. The

  At that time, the first and second contact portions 33a-1 and 33a-2 of the terminal 33 are in contact with the same position in the width direction of the counterpart terminal 42 with an interval in the insertion direction of the counterpart terminal 42. The terminal 33 contacts the other terminal 42 at two points. That is, when the mating terminal 42 is inserted into the movable housing 32, the first contact portion 33a-1 of the terminal 33 contacts the contact portion 42a of the mating terminal 42 before the second contact portion 33a-2. To do. Thus, even when foreign matter such as dust or dirt is attached to the contact portion 42a of the counterpart terminal 42, the second contact portion is removed after the foreign matter is removed by the first contact portion 33a-1 of the terminal 33. Since 33a-2 contacts, the 2nd contact part 33a-2 reliably contacts the other party terminal 42, without producing the conduction defect by a foreign material.

  Further, as described above, when the terminal 33 of the connector 30 presses the first contact portion 33a-1 in the direction opposite to the contact direction with the mating terminal 42, the second contact portion 33a-2 becomes the first contact portion 33a-2. Since the contact portion 33a-1 is displaced relatively to the contact direction with the counterpart terminal 42, the counterpart terminal 42 is connected to the first contact portion 33a-1 of the terminal 33 as shown in FIG. The elastic contact portion 33c elastically deforms in the direction opposite to the contact direction with the mating terminal 42 with the first fulcrum portion 33c-1 as a fulcrum, so that the second contact portion 33a-2 becomes the first contact portion 33a-2. It is displaced in the contact direction with the mating connector 40 relative to the contact portion 33a-1. Thereby, since the second contact portion 33a-2 protrudes in the X2 direction by α1 in FIG. 17 with respect to the first contact portion 33a-1, the counterpart terminal 42 contacts the second contact portion 33a-2. A sufficient amount of protrusion of the second contact portion 33a-2 is ensured.

  Next, as shown in FIG. 20, when the counterpart terminal 42 contacts the second contact portion 33a-2 of the terminal 33, the elastic piece portion 33c is connected to the counterpart terminal 42 using the second fulcrum portion 33c-2 as a fulcrum. The second contact portion 33a-2 is pressed while being in contact with the mating terminal 42 by elastically deforming in a direction opposite to the contact direction. At that time, as described above, when the terminal 33 presses the second contact portion 33a-2 in the direction opposite to the contact direction with the mating terminal 42, the first contact portion 33a as shown by the broken line arrow in the figure. -1 tends to displace in the contact direction with the mating terminal 42 relative to the mating terminal 42 rather than the second contact section 33a-2 with the mating terminal 42 in contact with the mating terminal 42, the first contact section with respect to the mating terminal 42 The contact pressure of 33a-1 is increased. Thereby, even if the counterpart terminal 42 contacts the second contact portion 33a-2 after the counterpart terminal 42 contacts the first contact portion 33a-1, the first contact portion with respect to the counterpart terminal 42 is provided. The contact pressure of 33a-1 does not decrease.

  Thus, according to the present embodiment, when the first contact portion 33a-1 of the terminal 33 is pressed in the direction opposite to the contact direction with the counterpart terminal 42, the elastic piece portion 33c becomes the first fulcrum portion 33c-. 1 is elastically deformed about the fulcrum, so that the second contact portion 33a-2 of the terminal 33 is displaced in the contact direction with the counterpart terminal 42 relative to the first contact portion 33a-1, and the terminal 33 When the second contact portion 33a-2 is pressed in the direction opposite to the contact direction with the counterpart terminal 42, the elastic piece portion 33c is elastically deformed with the second fulcrum portion 33c-2 as a fulcrum, so that the first contact point Since the portion 33a-1 is displaced in the contact direction with the counterpart terminal 42 relative to the second contact portion 33a-2, the counterpart terminal 42 is in contact with the first contact portion 33a-1. After that, even if the counterpart terminal 42 contacts the second contact portion 33a-2, the counterpart Without lowering the first contact pressure of the contact portion 33a-1 for the terminal 42, it is possible to obtain the first foreign matter removing effect by the contact portions 33a-1 sufficiently.

  Further, the second fulcrum part 33c-2, the first contact part 33a-1, the second contact part 33a-2, and the first fulcrum part 33c-1 are sequentially arranged in the insertion direction of the mating terminal 42. The distance L1 from the second fulcrum part 33a-2 to the second contact part 33a-2 is longer than the distance L2 from the second fulcrum part 33c-2 to the first contact part 33a-1. Therefore, by pressing the second contact portion 33a-2 in the direction opposite to the contact direction with the counterpart terminal 42, the first contact portion 33a-1 is surely connected to the second contact portion 33a-2. Can be relatively displaced in the contact direction with the counterpart terminal 42, which is extremely advantageous in increasing the contact pressure of the first contact portion 33a-1 with the counterpart terminal 42.

  Further, the first contact portion 33a-1 is closer to the second fulcrum portion 33c-2 than the intermediate point P between the first and second fulcrum portions 33c-1 and 33c-2 in the insertion direction of the mating terminal 42. Since the second contact portion 33a-2 is disposed closer to the first fulcrum portion 33c-1 than the intermediate point P, when the first contact portion 33a-1 is pressed, the elastic piece portion 33c is The first fulcrum part 33c-1 is easily elastically deformed about the fulcrum, and the elastic piece part 33c is easily elastically deformed about the second fulcrum part 33c-2 when the second contact point part 33a-1 is pressed. This is extremely advantageous in achieving the operation of the terminal 33.

  Further, since the contact portion 33a of the terminal 33 is formed in a bifurcated shape having the first and second contact portions 33a-1 and 33b-1 at the tip portion, the first and second contact portions 33a-1, 33b-1 can be displaced integrally with each other, which is extremely advantageous in achieving the operation of the terminal 33.

  In each of the above-described embodiments, the first fixed piece portions 13b and 33b as the fixed portions are fixed to the fixed housings 11 and 31 as the attachment objects. The terminal itself may be soldered to a substrate as an attachment object and directly fixed to the substrate.

  DESCRIPTION OF SYMBOLS 10 ... Connector, 11 ... Fixed housing, 13 ... Terminal, 13a ... Contact part, 13b ... 1st fixed piece part, 13a-1 ... 1st contact part, 13a-2 ... 2nd contact part, 13c ... Elasticity One part, 13c-1 ... first fulcrum part, 13c-2 ... second fulcrum part, 20 ... mating connector, 22 ... mating terminal, 30 ... connector, 31 ... fixed housing, 33 ... terminal, 33a ... Contact part, 33b ... 1st fixed piece part, 33a-1 ... 1st contact part, 33a-2 ... 2nd contact part, 33c ... Elastic piece part, 33c-1 ... 1st fulcrum part, 33c- 2 ... second fulcrum part, 40 ... mating connector, 42 ... mating terminal.

Claims (8)

In the electrical connection terminal that comes into contact with the connection object by elastic deformation,
The first and second contact portions that contact the connection object are provided with an interval in the insertion direction of the connection object, and when the connection object is inserted, the first contact portion is more than the second contact portion. A contact part that contacts the connection object first,
An elastic piece for supporting the contact portion on the tip side;
A first fulcrum portion provided on the opposite side of the elastic piece portion to the side on which the contact portion is provided;
A second fulcrum portion provided near the contact portion in the elastic piece portion,
The second fulcrum part is arranged at a position farther from the connection object than the first fulcrum part in the direction opposite to the contact direction,
When the first contact portion is pressed in the direction opposite to the contact direction with the connection object, the elastic piece portion is elastically deformed with the first fulcrum portion serving as a fulcrum, so that the second contact portion is more than the first contact portion. When the second contact part is displaced in a short distance and pressed in the direction opposite to the contact direction with the connection object, the elastic piece part is elastically deformed with the second fulcrum part as a fulcrum, thereby the first contact part. The terminal for electrical connection, characterized in that is formed so as to be displaced in the contact direction with the connection object relative to the second contact portion. Used in a connector having a fixed housing fixed to a substrate and a movable housing movable relative to the fixed housing, held in the fixed housing and the movable housing, and in a direction orthogonal to the insertion direction of the connection object In the terminal for electrical connection that comes into contact with the connection object by elastically deforming,
The first and second contact portions that contact the connection object are provided with an interval in the insertion direction of the connection object, and when the connection object is inserted, the first contact portion is more than the second contact portion. A contact part that contacts the connection object first,
A first fixed piece fixed to the movable housing;
An elastic piece formed between the contact portion and the first fixed piece;
A first fulcrum provided near the first fixed piece on the elastic piece;
A second fulcrum portion provided near the contact portion on the elastic piece portion;
A second fixed piece portion fixed to the fixed housing;
A movable part formed elastically deformable between the first fixed piece part and the second fixed piece part,
When the first contact portion is pressed in the direction opposite to the contact direction with the connection object, the elastic piece portion is elastically deformed with the first fulcrum portion serving as a fulcrum, so that the second contact portion is more than the first contact portion. Is also displaced by a short distance,
When the second contact portion is pressed in a direction opposite to the contact direction with the connection object, the elastic piece portion is elastically deformed with the second fulcrum portion serving as a fulcrum, so that the first contact portion is more than the second contact portion. Is formed so as to be relatively displaced in the contact direction with the connection object. A second fulcrum part, a first contact part, a second contact part and a first fulcrum part are sequentially arranged with respect to the insertion direction of the connection object,
The distance from the second fulcrum part to the second contact part is formed so as to be longer than the distance from the second fulcrum part to the first contact part. Terminal for electrical connection. The first contact point is disposed on the second fulcrum part side of the intermediate point between the first and second fulcrum parts with respect to the insertion direction of the connection object, and on the first fulcrum part side of the intermediate point. The terminal for electrical connection according to any one of claims 1 to 3, wherein a second contact portion is disposed. The electrical connection terminal according to any one of claims 1 to 4, wherein the contact portion is formed in a bifurcated shape having first and second contact portions at a tip portion thereof. The electrical connection terminal according to any one of claims 1 to 4, wherein the contact portion is formed in two mountain shapes each having a first contact portion and a second contact portion at a top portion. The elastic piece portion is formed so as to extend obliquely from the first fulcrum portion toward the second fulcrum portion in a direction opposite to the connection object. The electrical connection terminal according to claim 1. A connector comprising the electrical connection terminal according to claim 1.

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