JP2015144083A - Male/female terminal fitting and connector using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure mutual connection reliability of terminal fittings, without increasing the width of the terminal fittings.SOLUTION: A first male/female terminal fitting 20 having both functions of male terminal and female terminal includes a bottom plate 21 formed planarly and having a contact 26 protruding from the plate surface, and an elastic piece 23 arranged to face the contact 26 of the bottom plate 21 and displaceable elastically in a direction separating therefrom. The bottom plate 121 of a second terminal fitting 120 having the same shape is inserted, upside down, between the bottom plate 21 and elastic piece 23, and sandwiched elastically by the contact 26 and elastic piece 23.

Description

  The present invention relates to a male and female common terminal fitting and a connector using the same.

  Conventionally, the thing of the following patent document 1 is known as a male and female common terminal metal fitting which has a function of both a male terminal and a female terminal. The terminal fitting is configured such that a flat male terminal portion having a function of a male terminal and a cylindrical female terminal portion having a function of a female terminal are arranged side by side in the width direction. Then, this terminal fitting and another terminal fitting having the same shape are arranged face to face, the male terminal portion of one terminal fitting is fitted into the female terminal portion of the other terminal fitting, and the male terminal of the other terminal fitting is fitted. By fitting the portion into the female terminal portion of one terminal fitting, a pair of terminal fittings having the same shape can be electrically connected to each other. According to this terminal fitting, since it is not necessary to distinguish between the male and female of the terminal fitting, it is excellent in workability and facilitates component management. Moreover, compared with what requires the two types of terminal metal fittings which make a male terminal and a female terminal 1 set, since the apparatus regarding manufacture can be made shared, installation cost and manufacturing cost can be reduced.

  In addition, the male and female terminal fitting described in Patent Document 2 below is a pair of hook-shaped tabs extending back to back from the base portion of one terminal fitting, and the other terminal fitting having the same shape tab. It is inserted into the gap between the pair of tabs and is electrically connected to each other using the spring property of the tabs.

JP 2008-41476 A JP 2010-153056 A

  By the way, since the male terminal part and the female terminal part are arranged side by side in the terminal metal fitting described in Patent Document 1, the width dimension of the terminal metal fitting is large, the material cost of the terminal metal fitting is increased, and the terminal fitting is accommodated. The size of the connector housing will increase. Although the terminal described in Patent Document 2 can be miniaturized, if the terminal fittings are twisted due to manufacturing tolerances or vibrations, the tabs are in a point contact state, and connection reliability cannot be secured. End up.

  This invention is completed based on the above situations, Comprising: It aims at ensuring the connection reliability of terminal metal fittings, without enlarging the width dimension of a terminal metal fitting.

As means for achieving the above-mentioned object, the present invention is a male / female terminal fitting having both functions of a male terminal and a female terminal, which is formed in a flat plate shape and has a contact portion protruding from a plate surface. A bottom plate and an elastic portion that is elastically displaceable in a direction away from the bottom plate in an arrangement facing the contact portion of the bottom plate, and a bottom plate of another terminal fitting having the same shape is provided between the bottom plate and the elastic portion. It is characterized in that it is inserted between the contact part and the elastic part and inserted in an inverted state between them.
According to the terminal fitting having such a configuration, the pair of terminal fittings can be electrically connected to each other by holding the mating bottom plate between the contact portions and the elastic portions. Therefore, it is not necessary to distinguish between male and female terminal fittings, and the workability is excellent and component management is facilitated. Moreover, compared with what requires the two types of terminal metal fitting which makes a male terminal and a female terminal 1 set, since the apparatus regarding manufacture can be made shared, installation cost and manufacturing cost can be reduced.

Further, since the pair of terminal fittings are connected in a state where the bottom plate having the function of the male terminal and the elastic portion having the function of the female terminal are alternately overlapped in the thickness direction of the bottom plate, the portion having the function of the male terminal; The width dimension of a terminal metal fitting can be made small compared with the conventional terminal metal fitting which arrange | positions the part which has a function of a female terminal side by side in the width direction. As a result, the connector housing which accommodates the terminal fitting can be reduced in size.
In addition, since each bottom plate comes into contact with the contact portion on the other side protruding from the plate surface, for example, even when the vertical direction is twisted with respect to these terminal fittings due to manufacturing tolerance or vibration, at least Either one of the contact portions can be brought into contact with the mating bottom plate.
Therefore, for example, when flat bottom plates that do not have contact points protruding from the plate surface are brought into contact with each other and connected, the contact area between the terminal fittings becomes a point contact or a line contact when the twist occurs. However, according to the above configuration, it is possible to suppress a decrease in the contact area between the terminal fittings, so that the connection reliability between the terminal fittings can be ensured.

The following configuration is preferable as an embodiment of the present invention.
The elastic part has a clamping part that clamps the bottom plate of the another terminal fitting together with the contact part, and the contact part is a rear side opposite to the other terminal fitting than the clamping part. It is good also as a structure shifted | deviated to.
For example, if the sandwiching portion and the contact portion of the elastic portion are arranged at the same position in the front-rear direction, the contact portions may ride on each other when the bottom plate is overinserted. For this reason, a method of avoiding the contact portions from running on each other by lengthening the bottom plate in the front-rear direction can be considered, but the terminal plate becomes large due to the length of the bottom plate.
However, according to the above configuration, since the contact portion is arranged on the rear side opposite to the terminal fitting other than the holding portion, even if the bottom plate is not long, the contact portion It is possible to prevent the contact portions from climbing on each other when connecting the bottom plate to each other. Thereby, it can prevent that a baseplate becomes long and can prevent that a terminal metal fitting enlarges. In addition, since the sandwiching part presses the position between the two contact parts on the bottom plate from both sides, and each bottom plate is pressed toward the contact part on the other side, the contact part and the bottom plate are stably connected in a balanced manner. Connection reliability can be improved.

The front end portion of the contact portion may have a tapered shape.
According to such a structure, the insertion resistance which inserts the baseplate in another connector between a baseplate and an elastic part can be reduced.
A main body portion that supports the elastic portion is provided integrally with the bottom plate behind the contact portion in the bottom plate, and the elastic portion extends in a cantilever manner from the main body portion toward the bottom plate. It is good also as a structure which is the taken out elastic piece.
According to such a configuration, for example, the elastic piece is supported by the main body formed integrally with the bottom plate as compared with the case where the elastic piece is supported by a synthetic resin housing or the like. Reduction of the displacement reaction force of the elastic piece can be suppressed.

A main body part that supports the elastic part is provided behind the contact part in the bottom plate, and the elastic part is a plate-like extension piece that extends forward from the main body part. It is good also as a structure formed by bending back.
According to such a structure, since the position of the clamping part can be arrange | positioned back, the full length of a terminal metal fitting can be reduced compared with the case where an elastic part is extended toward the front.

A main body portion that supports the elastic portion is provided behind the contact portion in the bottom plate, and the elastic portion may be configured by mounting a separate spring member.
According to such a configuration, for example, since the elastic portion can be configured by a spring member formed of a metal having excellent proof stress (for example, stainless steel, spring steel, etc.), the manufacturing cost of the terminal fitting can be reduced. .

A main body portion that supports the elastic portion is provided behind the contact portion in the bottom plate, and the elastic portion is a separate spring member having a louver shape in which a plurality of elastic contact pieces are arranged in the width direction. May be configured.
According to such a configuration, since the plurality of elastic contact pieces are provided in the width direction, even when the terminal fitting rotates around the axis, so-called rolling, each elastic contact piece is inclined to the inclination of the bottom plate. It is possible to follow and secure the contact pressure of the bottom plate to the contact portion. Further, since the elastic contact pieces increase, the energization current is shared, and the temperature rise due to contact resistance and energization can be suppressed.

  Further, the present invention is a connector comprising a housing for holding the terminal fitting inside, wherein the housing is provided with an engaging portion on one side and an engaged portion on the other side. The engaging portion is engageable with an engaged portion of another connector having the same shape, and the engaging portion of the other connector is engageable with the engaged portion, and When the engaging portion of the mating member is engaged with the engaged portion on the other side, the terminal fitting and the terminal fitting of the other connector are held in a connected state, and The housing of the connector may be fixed to each other.

  According to the connector having such a configuration, a pair of connectors having the same shape can be fitted together with the terminal fitting. Thereby, like the terminal fitting, it is not necessary to distinguish a plurality of housings, and it is excellent in workability and facilitates component management. In addition, compared to a device that requires a plurality of types of housings, facilities related to manufacturing can be made common, so that facility costs and manufacturing costs can be reduced.

  According to the present invention, connection reliability between terminal fittings can be ensured without increasing the width dimension of the terminal fittings.

Sectional drawing which shows the state before the fitting of the 1st connector concerning Embodiment 1 and a 2nd connector Sectional drawing which shows the state after the fitting of a 1st connector and a 2nd connector The partially broken perspective view which shows the state which looked at the 1st terminal metal fitting concerning Embodiment 1 from diagonally forward Side view showing a state before connection between the first terminal fitting and the second terminal fitting Side view showing the state after connection of the first terminal fitting and the second terminal fitting The perspective view which shows the state which has arrange | positioned the 1st housing and the 2nd housing facing each other The partially broken side view of the 1st terminal metal fitting concerning Embodiment 2 The partially broken side view of the 1st terminal metal fitting concerning Embodiment 3 The partially broken side view of the 1st terminal metal fitting concerning Embodiment 4 The partially broken side view of the 1st terminal metal fitting concerning Embodiment 5 The bottom view of the spring member concerning Embodiment 5

<Embodiment 1>
Embodiment 1 of the present invention will be described with reference to FIGS.

  This embodiment illustrates the first connector 10 connected to the terminal of the electric wire W, and the first connector 10 is mutually connected to another second connector 110 having the same shape as shown in FIGS. 1 and 2. It can be fitted. In the following description, the vertical direction will be described with reference to the vertical direction in FIG.

  As shown in FIG. 1 and FIG. 2, the first connector 10 includes a first terminal fitting 20 that has both male and female functions, and a first housing 30 made of a synthetic resin that holds the first terminal fitting 20. It is configured with. Since the second connector 110 has the same shape as the first connector 10, the description thereof is omitted. In addition, as the reference numerals for the second connector 110, the reference numerals obtained by adding 100 to the reference numerals in the first embodiment are used.

  The first terminal fitting 20 is formed by processing a metal plate excellent in conductivity with a press or the like. Further, as shown in FIGS. 3 to 5, the first terminal fitting 20 includes a flat bottom plate 21 extending in the front-rear direction, a main body portion 22 integrally provided at a substantially central portion of the bottom plate 21 in the front-rear direction, An elastically displaceable elastic piece 23 provided integrally with the portion 22 and an electric wire connecting portion 24 provided behind the main body portion 22 in the bottom plate 21 are configured.

  The electric wire connecting portion 24 has a pair of barrels 24A that are crimped to the core wire W1 of the electric wire W. The end of the electric wire W with the core wire W1 exposed is placed on the rear end of the bottom plate 21, and the pair of barrels 24A are caulked and crimped to the core wire W1 so that the electric wire connecting portion 24 is electrically connected to the end of the electric wire W. ing.

  The main body portion 22 rises straight upward from both side edges in the width direction of the bottom plate 21 and is formed in a substantially rectangular tube shape whose upper end portions are connected in the width direction.

  Both the upper and lower sides of the front end portion of the bottom plate 21 are tapered so as to be tapered, and a protrusion projecting upward is provided at a substantially central portion in the front-rear direction of the bottom plate 21 arranged in front of the main body portion 22. A shaped contact portion 26 is provided.

  The contact portion 26 is formed by knocking out the bottom plate 21 from below to above. As shown in FIGS. 1 to 3, the contact portion 26 has a triangular side surface and has gently inclined surfaces 26 </ b> A before and after the contact portion 26. Further, the contact portion 26 has a shape extending in the width direction, and is formed over almost the entire width of the bottom plate 21 so that both end portions of the contact portion 26 are arranged slightly in the center in the width direction than both end portions of the bottom plate 21. Has been.

  The elastic piece 23 has a shape extending straight toward the bottom plate 21 toward the front so as to face the contact portion 26 of the bottom plate 21 from the upper end front edge of the main body 22, and the base end of the elastic piece 23 The elastic piece 23 can be elastically displaced upward with the portion as a fulcrum. The front end portion of the elastic piece 23 is a sandwiching portion 25 that is bent obliquely forward and upward, and the sandwiching portion 25 is positioned slightly forward of the contact portion 26 of the bottom plate 21.

  Between the bottom plate 21 and the clamping part 25, the bottom plate 121 of the second terminal fitting 120 in the second connector 110 can be inserted from the front in a state where the bottom plate 121 is turned upside down.

  The distance L1 between the height position of the clamping part 25 and the height position of the contact part 26 is slightly smaller than the thickness of the bottom plate 21 when the elastic piece 23 is in a natural state, as shown in FIGS. It is set small. When the bottom plate 121 of the second terminal fitting 120 is inserted between the bottom plate 21 and the sandwiching portion 25, the bottom plate 121 of the second terminal fitting 120 rides on the inclined surface 26A of the contact portion 26, and the bottom plate of the second terminal fitting 120 is obtained. When the clamping portion 25 is pressed by 121, the elastic piece 23 is elastically displaced upward. As shown in FIGS. 2 and 5, the bottom plate 121 of the second terminal fitting 120 is sandwiched between the contact portion 26 and the sandwiching portion 25 of the bottom plate 21 by the reaction force of the elastic piece 23.

  Further, when the bottom plate 121 of the second terminal fitting 120 is inserted upside down between the bottom plate 21 and the sandwiching portion 25, the bottom plate 21 of the first terminal fitting 20 and the bottom plate 121 of the second terminal fitting 120 are second. It enters between the clamping part 125 of the terminal metal fitting 120, and the bottom plate 21 of the first terminal metal fitting 20 is also clamped between the contact part 126 and the clamping part 125 of the second terminal metal fitting 120.

  As shown in FIGS. 2 and 5, the holding portions 25 and 125 respectively move the bottom plates 21 and 121 between the contact portion 26 of the first terminal metal fitting 20 and the contact portion 126 of the second terminal metal fitting 120 on both the upper and lower sides. The bottom plates 21 and 121 are pressed against the contact portions 26 and 126 on the other side. Thereby, the 1st terminal metal fitting 20 and the 2nd terminal metal fitting 120 are electrically connected. That is, the first terminal fitting 20 and the second terminal fitting 120 of the present embodiment are configured as a male and female common terminal fitting having both functions of a male terminal and a female terminal.

  As shown in FIGS. 1, 2, and 6, the first housing 30 includes a housing main body 31 having a cavity 32 that can accommodate the first terminal fitting 20, and a hook projecting forward from the front end surface 31 </ b> A of the housing main body 31. A portion 33 and a housing portion 34 provided at the front end of the housing body 31 so as to face the flange portion 33 in the vertical direction are configured.

  The housing main body 31 has a block shape, and a cavity 32 penetrating in the front-rear direction is provided inside the housing main body 31. The first terminal fitting 20 can be inserted into the cavity 32 from behind. When the first terminal fitting 20 is inserted into the cavity 32, the first terminal fitting 20 is inserted into the cavity 32 by a terminal locking portion (not shown). Retained. Further, when the first terminal fitting 20 is held in the cavity 32, the front portion of the bottom plate 21 from the contact portion 26 and the front portion of the elastic piece 23 from the substantially central portion in the front-rear direction protrude forward from the front end opening of the cavity 32. It will be in the state.

  The flange portion 33 has a flat plate shape and is provided at a position above the cavity 32 in the front end surface 31 </ b> A of the housing body 31. On the upper surface of the flange portion 33, an engaging portion 35 having a triangular shape in side view is projected. The front surface of the engaging portion 35 is inclined in a direction away from the flange portion 33 toward the rear, and the rear surface of the engaging portion 35 is a locking surface 35 </ b> A orthogonal to the upper surface of the flange portion 33.

  As shown in FIGS. 1 and 6, the accommodating portion 34 has a box shape that opens upward and forward, and is provided at a position below the cavity 32 in the front end surface 31 </ b> A of the housing body 31. A bottom plate 21 that protrudes forward from the front end opening of the cavity 32 is housed in the housing portion 34, and the housing portion 34 protects other members from contacting the bottom plate 21.

  Further, in the housing portion 34, a flange 133 provided on the second housing 130 of the second connector 110 can be fitted from the front opening of the housing portion 34 in a state where the housing portion 34 is turned upside down. When the flange 133 of the second housing 130 is fitted inside, as shown in FIG. 2, the flange 33 of the first housing 30 is also fitted in the accommodating portion 134 of the second housing 130. It has become. Further, when the mating flanges 33 and 133 are fitted in the housing portions 34 and 134, the bottom plates 21 and 121 of the first terminal fitting 20 and the second terminal fitting 120 are connected to the mating bottom plates 21 and 121, respectively. The first terminal fitting 20 and the second terminal fitting 120 are electrically connected by entering between the sandwiching portions 25 and 125.

As shown in FIGS. 1, 2, and 6, a substantially rectangular engagement hole 36 is provided in the bottom wall 34 </ b> A of the housing portion 34. An engaging portion 135 of the flange 133 in the second housing 130 that is turned upside down can be fitted into the engaging hole 36 from above. Further, in the process of fitting the receiving portions 34 and 134 and the mating flange portions 33 and 133, the bottom plates 21 and 121 of the first terminal fitting 20 and the second terminal fitting 120 are sandwiched between the mating bottom plates 21 and 121. When entering between the portions 25 and 125, as shown in FIG. 2, the relative positions in the vertical direction of the flange portions 33 and 133 and the accommodating portions 34 and 134 are positioned by the two terminal fittings 20 and 120, respectively. The engaging portion 135 of the second housing 130 is fitted into the engaging hole 36 of the first housing 30. Similarly to the first housing 30, the engaging portion 35 of the first housing 30 is fitted into the engaging hole 136 of the second housing 130.
Then, by engaging the engaging portions 35 and 135 with the mating engaging holes 36 and 136, the engaged surface 35A of the engaging portion 35 and the engaged portion provided in front of the engaging hole 136 are provided. The portion 137 is locked in the front-rear direction, and the locking surface 135A of the engagement portion 135 and the engaged portion 37 provided in front of the engagement hole 36 are locked in the front-rear direction. Thereby, the 1st housing 30 and the 2nd housing 130 are mutually fixed.
That is, the first housing 30 and the second housing 130 are configured as a common housing that can accommodate the first terminal fitting 20 and the second terminal fitting 120 that are both male and female terminal fittings and can be fitted to each other. . And the 1st housing 30 and the 2nd housing 130 are mutually fixed, and the 1st connector 10 and the 2nd connector 110 are hold | maintained in the fitted state.

  The present embodiment is configured as described above. Next, the operation and effect of the first connector 10 will be described.

  When the first connector 10 and the second connector 110 having the same shape as the first connector 10 are fitted to each other, the flange 133 of the second housing 130 is fitted into the housing portion 34 of the first housing 30. The flange portion 33 of the first housing 30 is also fitted into the accommodating portion 134 of the second housing 130. Then, the engaging portions 35 and 135 are fitted into the mating engaging holes 36 and 136 so that the engaging surfaces 35A and 135A of the engaging portions 35 and 135 and the engaging holes 36 and 136 are engaged. As shown in FIG. 2, the first connector 10 and the second connector 110 are held in engagement with each other, as shown in FIG.

  Further, in the process in which the flanges 33 and 133 are fitted into the mating receiving portions 34 and 134, the bottom plates 21 and 121 of the first terminal fitting 20 and the second terminal fitting 120 are the mating bottom plate 21. , 121 and the sandwiching portions 25, 125. In this entering process, the bottom plate 121 of the second terminal fitting 120 rides on the inclined surface 26A of the contact portion 26, and the bottom plate 121 pushes up the elastic piece 23 upward. However, since the inclined surface 26A of the contact portion 26 is gently inclined, for example, the insertion resistance for inserting the bottom plate 121 is reduced as compared with the case where the inclined surface is not provided at the front end of the contact portion. be able to. And when the 1st connector 10 and the 2nd connector 110 reach a fitting state, each baseplate 21 and 121 is clamped by the clamping parts 25 and 125 and the contact parts 26 and 126, and the 1st terminal metal fitting 20 and the 2nd The terminal fitting 120 is electrically connected.

  That is, according to the present embodiment, the first terminal fitting 20 and the second terminal fitting 120 can be electrically connected by fitting a pair of housings 30 and 130 having the same shape together. Thus, it is not necessary to distinguish between male and female like a pair of connectors each having a male connector having a male terminal and a female connector having a female terminal, and it is excellent in workability and facilitates component management. In addition, compared to a device that requires two types of connectors, a pair of a male connector and a female connector, facilities related to manufacturing can be made common, so that facility costs and manufacturing costs can be reduced.

  Further, according to the first terminal fitting 20 and the second terminal fitting 120 of the present embodiment, as shown in FIGS. 2 and 5, the bottom plates 21 and 121 having the function of male terminals and the elastic piece 23 having the function of female terminals. , 123 are connected to each other in a state in which the bottom plates 21 and 121 are alternately overlapped in the vertical direction which is the thickness direction of the bottom plates 21 and 121, so that the portion having the function of the male terminal and the function of the female terminal are provided. The width dimension of the terminal metal fittings 20 and 120 can be reduced as compared with the conventional terminal metal fittings that are arranged side by side in the width direction. As a result, each housing 30,130 which accommodates each terminal metal fitting 20,120 can also be reduced in size. In addition, the elastic pieces 23 and 123 of the terminal fittings 20 and 120 are cantilevered from the upper front edge of the main body portions 22 and 122 toward the bottom plates 21 and 121. For example, the elastic pieces are synthesized. Compared to a case where the elastic pieces 23 and 123 are supported by a resin housing or the like, the elastic pieces 23 and 123 are supported by the body portions 22 and 122 formed integrally with the bottom plates 21 and 121. The reduction of the displacement reaction force 123 can be suppressed.

  Further, since the respective bottom plates 21 and 121 come into contact with the mating contact portions 26 and 126 protruding from the plate surface, for example, the vertical direction with respect to the respective terminal fittings 20 and 120 due to manufacturing tolerances or vibrations. Even when slight twisting occurs, at least one of the contact portions 26 and 126 can be brought into contact with the mating bottom plates 21 and 121. Therefore, for example, when flat bottom plates that are not provided with contact portions protruding from the plate surface are brought into contact with each other and connected, there is a dislike that the contact area between the terminal fittings is extremely reduced with only slight twisting. However, according to the above configuration, it is possible to suppress a decrease in the contact area between the terminal fittings 20 and 120, and thus the connection reliability between the terminal fittings 20 and 120 can be ensured.

Also, for example, when the mating bottom plate is over-inserted between the bottom plate and the sandwiching portion, if the sandwiching portion and the contact portion of the elastic piece are arranged at the same position in the front-rear direction, the contact portions However, it is necessary to lengthen the bottom plate in the front-rear direction because there is a concern that the contact area of the bottom plate with respect to the contact portion becomes insufficient and the connection reliability decreases. However, according to this embodiment, since the contact portions 26 and 126 are arranged behind the sandwiching portions 25 and 125, even if the bottom plates 21 and 121 are excessively inserted, the bottom plates 21 and 126 are connected to the contact portions 26 and 126. When connecting 121, the contact portions 26 and 126 do not ride on each other. Accordingly, it is possible to prevent the contact portions 26 and 126 from riding on each other while preventing the bottom plates 21 and 121 from being elongated in the front-rear direction. As a result, it can prevent that each terminal metal fitting 20 and 120 enlarges.
When both terminal fittings 20 and 120 are connected, the clamping portions 25 and 125 press the bottom plates 21 and 121 between the contact portions 26 from both the upper and lower sides, and the bottom plates 21 and 121 are contacted with the mating contact portions. 26, 126 can be pressed and connected to each other, so that the bottom plates 21, 121 and the mating contact portions 26, 126 can be stably connected in a balanced manner. The contact portions 26, 126 and the bottom plate 21, The connection reliability with 121 can be improved.

<Embodiment 2>
Next, Embodiment 2 of the present invention will be described with reference to FIG.
The first terminal fitting 220 of the second embodiment is obtained by changing the shape of the contact portion 26 of the first terminal fitting 20 in the first embodiment, and the configuration, operation, and effect common to the first embodiment are overlapped. Therefore, the description is omitted. The same reference numerals are used for the same configurations as those in the first embodiment.

As shown in FIG. 7, the contact portion 226 of the second embodiment has a rounded rear end portion, and the front end portion has a gently inclined surface 226A similar to the inclined surface 26A of the first embodiment. Yes.
Therefore, according to the present embodiment, since the inclined surface 226A that is gently inclined is formed at the front end portion of the contact portion 226 on which the bottom plate 121 of the second terminal fitting 120 rides, for example, the inclined surface is formed at the front end of the contact portion. Compared with the case where no is provided, the insertion resistance of the bottom plate 121 of the second terminal fitting 120 can be reduced.

<Embodiment 3>
Next, Embodiment 3 of the present invention will be described with reference to FIG.
The first terminal fitting 320 of the third embodiment is obtained by changing the shape of the elastic piece 23 of the first terminal fitting 20 in the first embodiment, and the configuration, operation, and effect common to the first embodiment are overlapped. Therefore, the description is omitted. The same reference numerals are used for the same configurations as those in the first embodiment.

As shown in FIG. 8, the elastic piece 323 of the third embodiment has a form in which an extending piece 323 </ b> A extending forward from the upper end front edge of the main body 22 is bent inwardly toward the rear. . The lower end portion of the extended piece 323A bent inwardly in the elastic piece 323 is a holding portion 325 that holds the bottom plate 121 of the second terminal fitting 120 together with the contact portion 26. The holding portion 325 is a contact point of the bottom plate 21. It is set so as to be located in front of the portion 26.
That is, according to the present embodiment, the position of the sandwiching portion 325 can be arranged rearward by the amount of bending of the elastic piece 323 to the inner winding. For example, in the case of an elastic piece extending forward. In comparison, the overall length of the first terminal fitting 320 can be reduced.

<Embodiment 4>
Next, a fourth embodiment of the present invention will be described with reference to FIG.
The first terminal fitting 420 of the fourth embodiment is obtained by changing the shape of the elastic piece 23 of the first terminal fitting 20 in the first embodiment, and the configuration, operation, and effect common to the first embodiment are overlapped. Therefore, the description is omitted. The same reference numerals are used for the same configurations as those in the first embodiment.

Unlike the elastic piece 23 of the first embodiment, an elastic portion 423 having a separate spring member 427 is provided on the upper front edge of the main body 22 in the fourth embodiment, as shown in FIG.
The elastic portion 423 has a holding portion 423A extending forward from the upper end front edge of the main body portion 22, and a pair of holding pieces 423B provided at the front end portion of the holding portion 423A and the substantially central portion in the front-rear direction. By supporting the spring member 427 from below, the spring member 427 is held by the holding portion 423A.
The spring member 427 is a so-called leaf spring that is formed in a V shape when viewed from the side by bending a metal plate at a substantially central portion in the front-rear direction. The lower end portion of the spring member 427 is a holding portion 425 that holds the bottom plate 121 of the second terminal fitting 120 together with the contact portion 26, and the holding portion 425 is positioned forward of the contact portion 26 of the bottom plate 21. Is set. In addition, the metal plate material which comprises a leaf | plate spring can use arbitrary metals, such as a metal excellent in yield strength, for example, stainless steel (SUS), spring steel, etc. as needed.
That is, according to this embodiment, since the elastic part 423 can be comprised by the leaf | plate spring formed with the metal excellent in yield strength, the reduction | decrease of the displacement reaction force by high temperature can be suppressed.

<Embodiment 5>
Next, Embodiment 5 of the present invention will be described with reference to FIG. 10 and FIG.
The first terminal fitting 520 of the fifth embodiment is obtained by changing the spring member 427 of the first terminal fitting 420 in the fourth embodiment. Regarding the configuration, operation, and effect common to the first and fourth embodiments, Since it overlaps, the description is omitted. The same reference numerals are used for the same configurations as those in the fourth embodiment.

As shown in FIG. 11, the spring member 527 of the elastic portion 523 according to the fifth embodiment is a spring member formed by arranging a plurality of elastic contact pieces 528 that are both supported at both front and rear end portions at intervals in the width direction. The so-called louver-like spring member 527 is used. The spring member 527 is held by the holding portion 423A by supporting a plurality of leg portions 529 provided at both front and rear ends by a pair of holding pieces 423B from below.
As shown in FIGS. 10 and 11, the elastic contact piece 528 has a shape in which the center portion in the front-rear direction bulges downward, and the bulging end holds the bottom plate 121 of the second terminal fitting 120 together with the contact portion 26. The holding portion 525 is used.
That is, according to the present embodiment, since the plurality of elastic contact pieces 528 are provided in the width direction, even when the second terminal fitting 120 rotates around the axis, or so-called rolling, the second terminal fitting. The clamping portion 525 of each elastic contact piece 528 follows the inclination of the bottom plate 121 at 120 so that the contact pressure of the bottom plate 121 with respect to the contact portion 26 can be secured. Moreover, since the elastic contact pieces increase, the energization current is shared, and the temperature rise due to the contact resistance and the energization can be suppressed.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

  (1) In the above embodiment, the contact portions 26, 126, and 226 are arranged behind the sandwiching portions 25, 125, 325, 425, and 525. However, the present invention is limited to such an embodiment. Instead, for example, the contact portion may be formed at substantially the same position in the front-rear direction as the sandwiching portion.

  (2) In the above embodiment, the front end portions of the contact portions 26, 126, and 226 are configured to be gently inclined surfaces 26A, 126, and 226A. However, the present invention is not limited to such an aspect. The front end of the bottom plate provided in a taper shape may be formed more gently, for example, so that the contact portion may be formed in a rounded shape.

  (3) In the above embodiment, the electric wire connecting portion of the first terminal fitting is caulked and crimped to the electric wire, but the present invention is not limited to such an embodiment. For example, the core wire of the electric wire and the electric wire connection The parts may be connected by welding or brazing (brazing or soldering).

10: First connector (connector)
20, 220, 320, 420, 520: first terminal fitting (terminal fitting)
21, 121: Bottom plate 22: Main body 23, 123, 323: Elastic piece (elastic part)
25, 125, 325, 425, 525: clamping part 26, 126, 226: contact part 30: housing 35, 135: engaging part 37, 137: engaged part 110: second connector (another connector)
120: Second terminal fitting (another terminal fitting)
130: second housing (housing of another connector)
323A: Extension piece 423, 523: Elastic part 427, 527: Spring member 528: Elastic contact piece

Claims (8)

It is a male and female common terminal fitting having both functions of a male terminal and a female terminal,
A bottom plate formed in a flat plate shape and having a contact portion protruding from the plate surface;
An elastic portion that is elastically displaceable in a direction away from the bottom plate in an arrangement facing the contact portion of the bottom plate;
A male and female shared terminal in which the bottom plate of another terminal fitting having the same shape is inserted between the bottom plate and the elastic portion in an inverted state and is elastically held between the contact portion and the elastic portion. Hardware. The elastic part has a holding part that holds the bottom plate of the other terminal fitting together with the contact part,
The male / female terminal fitting according to claim 1, wherein the contact portion is arranged so as to be shifted to a rear side opposite to the other terminal fitting from the clamping portion.   3. The male / female terminal fitting according to claim 1, wherein a front end portion of the contact portion is formed in a tapered shape. Behind the contact portion in the bottom plate, a body portion that supports the elastic portion is provided integrally with the bottom plate,
The male and female common terminal fitting according to claim 1, wherein the elastic portion is an elastic piece that is cantilevered from the main body portion toward the bottom plate. A body part that supports the elastic part is provided behind the contact part in the bottom plate,
3. The male / female terminal fitting according to claim 1, wherein the elastic part is formed by bending a plate-like extension piece extending forward from the main body part backward. A body part that supports the elastic part is provided behind the contact part in the bottom plate,
3. The male / female terminal fitting according to claim 1, wherein the elastic portion is configured by mounting a separate spring member. A body part that supports the elastic part is provided behind the contact part in the bottom plate,
3. The male / female terminal fitting according to claim 1, wherein the elastic portion is configured by mounting a separate spring member having a louver shape in which a plurality of elastic contact pieces are arranged in the width direction. A connector comprising a housing for holding the terminal fitting according to any one of claims 1 to 7,
The housing is provided with an engaging portion on one side and an engaged portion on the other side,
The engaging portion is engageable with an engaged portion of another connector having the same shape, and an engaging portion of the another connector is engageable with the engaged portion,
When the engaging portion of each other is engaged with the engaged portion on the other side, the terminal fitting and the terminal fitting of the other connector are held in a connected state, and The connector housing is fixed to each other.

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