KR20150083775A - Connector - Google Patents

Abstract

The purpose of the present invention is to provide a connector capable of corresponding to a high-current use by using a low-resistance terminal, and comprising a terminal including a moving part capable of corresponding to a high-current use. A connector (1) comprises: a first terminal (9) and a second terminal (10) in the form of a flat plate whose one end is connected to a balanced conductor (4) and the other end is connected to the same substrate contact point (2b) of a substrate (2); and a housing (3) to hold the terminals (9, 10) in parallel in order that a terminal surface in the form of a flat plate is placed in a vertical direction perpendicular to the surface of the substrate (2). Moreover, each terminal (9, 10) includes: a contact part (5) connected to each balanced conductor (4) to be conducted; spring parts (9c, 10c) wherein two terminal pieces in the form of a flat plate branched and extended from the contact part (5) are arranged in parallel with each other; and substrate connection parts (9e, 10e) connected to a substrate contact point (2a) to be conducted in the end of each spring part (9c, 10c). Therefore, the present invention has an effect of corresponding to a high-current by reducing a current value of each spring parts (9c, 10c).

Description

Connector {CONNECTOR}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector suitable for large current applications in which a board and an electronic component are electrically connected to each other,

There has been a demand for a connector capable of conducting electric connection between vehicle-mounted devices in accordance with the progress of electric vehicle driving. In particular, a connector provided with a terminal having a movable portion as a countermeasure against positional displacement and vibration of a connector fitting (For example, Patent Document 1). According to this configuration, vibration can be absorbed by the elastic deformation of the movable portion of the terminal, so that there is an advantage that the connection reliability between the connection objects can be maintained and the connection reliability can be improved.

Japanese Patent Application Laid-Open No. 2-106882

However, in such a connector having such a movable portion, the movable portion is usually provided on the terminal as a metal piece having a small width in order to realize flexible elastic deformation, and when the sectional area is small with a small width, the resistance becomes too high, It is difficult to cope with this problem. Particularly, in a connector for a large-current device for a vehicle-mounted device, the value of a current passed through the connector gradually increases. For this reason, it is required to realize a connector structure capable of coping with high-current applications in which the terminals are made as low in resistance as possible by increasing the cross-sectional area of the terminals on the premise of the limited connector size and number of terminals. In addition, it is required to realize a movable portion of a terminal to improve connection reliability.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a connector capable of coping with a large current application by reducing the resistance of the terminal. It is also an object of the present invention to provide a connector including a terminal having a movable portion capable of handling a large current application.

In order to achieve the above object, the present invention is configured as follows.

That is, a flat first terminal and a second terminal for connecting one end to the same balanced conductor as a connection object and connecting the other end to the same substrate contact point of the board, and a first terminal and a second terminal, Wherein the first and second terminals respectively have a contact portion electrically connected to the balanced conductor and a plurality of flat plates extending from the contact portion and extending in parallel to each other along a longitudinal direction perpendicular to the surface of the substrate, And a board connecting portion that is electrically connected to the board contact at a distal end side of each of the extending portions.

According to the present invention, since the housing holds the first and second terminals in parallel so that the terminal surface in a flat plate shape follows the longitudinal direction perpendicular to the surface of the substrate, when the size of the housing is made constant, The resistance of the terminal can be reduced by increasing the cross-sectional area of the terminal, as compared with the case where the terminal surfaces are arranged in the transverse alignment.

According to the present invention, since the first terminal and the second terminal are connected to the same board contact with the same flat conductor, it is possible to cope with a large current application by increasing the cross-sectional area of the plate-

Further, according to the present invention, since the first terminal and the second terminal each have the extending portions branched and extending from the contact portions, they can be divided (branched) into at least four extending portions for one balanced conductor. Therefore, compared with the case where one flat conductive body is connected by one elongated portion, heat generated in the terminal can be suppressed by flowing a large current, which makes it possible to cope with the use of a large current.

According to the present invention, since the extending portions of the first terminal and the second terminal are structured such that the flat plate terminal pieces branching and extending from the contact portion are arranged in parallel, the terminal arrangement of the first and second terminals is arranged in parallel in the plate thickness direction So that the entire connector can be miniaturized. In addition, because the elongated portion is a flat plate terminal piece, the cross-sectional area of the terminal can be increased to reduce the resistance, which can cope with a large current application.

The present invention can arrange the extending portion of the second terminal between the extending portions to which the first terminals are branched.

According to this structure, the terminal arrangement in the extending portion can be made compact in the plate thickness direction, and the entire connector can be downsized.

In the present invention, the housing has the insertion port of the flat conductive body along the longitudinal direction, and the contact portion of the contact portion of the first terminal and the contact portion of the second terminal can be arranged in the vertical direction.

According to this configuration, since the contact portion of the first terminal and the contact portion of the second terminal are vertically aligned along the longitudinally long insertion port of the flat conductor, the cross-sectional area The resistance can be lowered and it can cope with a large current application.

In the present invention, the housing may have a communicating hole communicating with at least the contact portion of the first terminal or the contact portion of the second terminal inside the housing.

According to this structure, the heat generated in the contact portion in contact with the flat conductive body can be dissipated through the communication hole, thereby realizing a housing structure capable of coping with high current applications.

In the present invention, the extension portions of the first and second terminals may have a movable piece portion in which the straight portion and the bent portion are combined.

According to this, it is possible to realize a connector terminal having a floating mechanism with the extending portion serving as a movable piece, so that the load on the soldering portion due to the displacement of the connector fitting and the vibration during use can be reduced. Since the movable piece portion is formed by combining the straight portion and the bent portion, a highly flexible terminal structure can be realized with a low spring coefficient having a spring length.

The present invention can be configured such that the contact portions of the first and second terminals have a plurality of arm-shaped contact portions.

Since the number of contacts in the contact portion is made plural, the current value per one contact portion can be reduced to suppress the heat generation at the contact portion, so that the contact structure can be used for a large current application.

The present invention is characterized in that the housing has an engagement portion which is engaged with the substrate surface in a state in which the housing is overlapped with the thickness of the substrate in the longitudinal direction.

According to this structure, since the projecting height of the connector from the substrate can be suppressed, it is possible to cope with a request for space saving inside the apparatus for installing the substrate. In this case, the edge connector can be made by attaching it to the plate edge of the board. In this case, the edge connector can be horizontally connected by making the fitting direction of the flat conductive body in the direction along the board surface of the board.

The present invention is characterized in that the first and second terminals have a fixing piece portion for the housing, the housing has a fixing housing in which the fixing piece portions of the first and second terminals are fixed, And the movable housing can be configured such that relative displacement is possible by elastic deformation of the extension portions of the first and second terminals with respect to the fixed housing.

According to this, it is possible to realize a connector having a floating function while coping with a large current use.

According to the connector of the present invention, it is possible to realize a connector capable of realizing reduction in resistance of a terminal and coping with use in a large current. In addition, a movable connector supporting a large current can be realized. In addition, it is possible to realize a connector having a low-resistance, movable mechanism with a terminal of a low spring coefficient, in a space-saving manner. Therefore, a connector having high connection reliability and high connection reliability can be realized in applications where high-current-demanding applications such as vehicle-mounted devices are demanded.

1 is a perspective view showing a front surface, a right side surface, and a plane of a connector according to an embodiment;
Fig. 2 is a perspective view showing a rear surface, a left side surface, and a plane of the connector of Fig. 1; Fig.
Figure 3 is a front view of the connector of Figure 1;
Fig. 4 is a rear view of the connector of Fig. 1; Fig.
5 is a plan view of the connector of Fig. 1;
Figure 6 is a bottom view of the connector of Figure 1;
7 is a right side view of the connector of Fig. 1;
8 is a sectional view taken along the line SA-SA in Fig. 3;
9 is a sectional view taken along the line SB-SB in Fig.
10 is a sectional view of the SC-SC line in Fig. 3; Fig.
11 is a perspective view showing a front surface, a right side surface, and a plane of the housing main body of Fig. 1; Fig.
12 is a perspective view showing a rear surface, a left surface, and a plane of the housing main body of Fig. 1; Fig.
13 is a front view of the housing main body of Fig. 1;
Fig. 14 is a rear view of the housing main body of Fig. 1; Fig.
15 is a plan view of the housing main body of Fig. 1;
16 is a bottom view of the housing main body of Fig. 1;
Fig. 17 is a right side view of the housing main body of Fig. 1; Fig.
Fig. 18 is a perspective view showing a front surface, a right side surface, and a plane of the retainer of Fig. 1; Fig.
FIG. 19 is a perspective view showing a back surface, a left side surface, and a plane of the retainer of FIG. 1; FIG.
Figure 20 is a front view of the retainer of Figure 1;
Fig. 21 is a rear view of the retainer of Fig. 1; Fig.
22 is a right side view of the retainer of Fig.
Figure 23 is a plan view of the retainer of Figure 1;
24 is a bottom view of the retainer of Fig.
Fig. 25 is a perspective view showing a front surface, a right side surface, and a plane of the first terminal of Fig. 1; Fig.
FIG. 26 is a view showing the first terminal of FIG. 1, wherein (a) is a front view and (b) is a rear view.
FIG. 27 is a view showing the first terminal of FIG. 1, wherein FIG. 27 (a) is a plan view and FIG. 27 (b) is a bottom view.
28 is a right side view of the first terminal of Fig.
29 is a perspective view showing a front surface, a right side surface, and a plane of the second terminal of Fig. 1; Fig.
Fig. 30 is a view showing the second terminal of Fig. 1, wherein (a) is a front view, and (b) is a rear view.
Fig. 31 is a view showing the second terminal of Fig. 1, with (a) a plan view and (b) a bottom view.
32 is a right side view of the second terminal of Fig.
Fig. 33 is a perspective view showing a front surface, a right side surface, and a plane showing the arrangement relationship between the first terminal and the second terminal without the housing of Fig. 1; Fig.
FIG. 34 is a perspective view showing a rear surface, a left surface, and a plane showing the arrangement relationship between the first terminal and the second terminal without the housing of FIG. 1; FIG.
FIG. 35 is a view showing the arrangement relationship between the first terminal and the second terminal without the housing of FIG. 1, and FIG. 35 (a) is a front view and FIG. 35 (b) is a rear view.
FIG. 36 is a view showing the arrangement relationship between the first terminal and the second terminal without the housing of FIG. 1, and FIG. 36 (a) is a plan view and FIG. 36 (b) is a bottom view.
Fig. 37 is a right side view showing the arrangement relationship between the first terminal and the second terminal without the housing of Fig. 1; Fig.
Fig. 38 is an explanatory view showing a mounting process of the connector of Fig. 1 in a plan view (plan view). Fig.
Fig. 39 is an explanatory view showing the connection process of the connector of Fig. 1 as a front view, a right view, and a perspective view from a plane;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, one embodiment of a connector of the present invention will be described with reference to the drawings. In the following embodiments, a connector 1 having a floating function, which is electrically connected to a connection object provided on a vehicle-mounted device via a board, will be described as an example.

1, the width direction along the long side of the connector 1 shown in Fig. 1 is referred to as X direction, the longitudinal direction along the short side is referred to as Y direction, the height direction of the connector perpendicular to the board surface The plane side of the connector 1 in the height direction Z is referred to as " upper side ", and the bottom side of the connector 1 is referred to as " lower side. &Quot;

Embodiment [Figs. 1 to 39]

As shown in Figs. 1 to 39, the connector 1 is an edge connector, which comprises a housing 3 mounted on the end of a substrate 2, a holder 3 held on the housing 3, and connected to a flat conductor 4 of an electronic component And a terminal part In this embodiment, a bus bar is shown as an example of a " balanced conductor ".

〔housing〕

As shown in Figs. 1 to 7 and Figs. 11 to 24, the housing 3 is made of an insulating resin, is provided in a substantially rectangular parallelepiped shape as a whole, and has a height direction Z in the width direction of the connector 1 X and the fore and aft direction Y, respectively. The housing 3 has a housing main body 6 as a " movable housing " and a retainer 7 as a " fixed housing ". The retainer 7 has a space 8 inside and accommodates the housing main body 6 in the space 8.

[Housing body]

11 to 17, the housing main body 6 includes the insertion port 6b of the flat conductive body 4, the receiving hole 6c, the communication hole 6d, the engaging portion 6e, Prevention portion 6f.

The insertion port 6b is installed in the front portion 6a1 of the housing main body 6 perpendicular to the substrate 2 and is formed long in the vertical direction. Then, the flat conductive member 4 of the electronic component can be inserted into the insertion hole 6b. In the present embodiment, three insertion ports 6b can be provided, and each of the balanced conductors 4 can be inserted into each of the insertion ports 6b. The insertion port 6b is provided along the height direction Z of the connector 1 and is formed to be larger than the outer circumference of the flat conductive member 4. [ The flat conductive member 4 is inserted into the insertion port 6b so as to be parallel to the plane direction of the substrate 2 in a state in which the flat surface is held in a direction perpendicular to the substrate 2. [

The receiving hole 6c is formed in communication with the insertion port 6b and accommodates the terminal portion 5. [ The flat conductive body 4 inserted from the insertion port 6b is electrically connected to the terminal portion 5 in the receiving hole 6c. Further, partition walls 6c1 and 6c1 are provided on the side in the width direction X of the accommodation hole 6c. When a plurality of receiving holes 6c are provided along the width direction X, the receiving hole 6c can be separated by the partition wall 6c1. A protruding portion 6c2 along the forward and backward directions Y is formed on the inner walls of the partition walls 6c1 and the side surface portion 6a3 toward the inside of the receiving hole 6c. The terminal portion 5 accommodated in the receiving hole 6c can be fixed to the housing main body 6 by the protruding portion 6c2.

The communication hole 6d is formed on the side of the insertion port 6b. The plurality of communication holes 6d are integral with the inside of the housing main body 6 and penetrate toward the rear of the housing main body 6. [ In the present embodiment, two communication holes 6d are formed on both sides of the insertion port 6b. The communication holes 6d are also formed above and below the front portion 6a1, and a total of 16 communication holes 6d are provided. A projecting engaging portion 6e is formed on the upper surface portion 6a2 of the housing main body 6. [ The protrusions 6f and 6f are formed on the side surfaces 6a3 and 6a3.

[Retainer]

As shown in Figs. 18 to 24, the retainer 7 has a through hole 7b, a receiving space 7c, a retaining hole 7d, a recess 7e, 7f, and a substrate fixing portion 7g.

The insertion hole 7b is provided at the rear portion in the front-rear direction Y, and the terminal portion 5 can be inserted when the connector 1 is assembled. In the present embodiment, three are formed, and one terminal portion 5 is inserted into each of the insertion holes 7b.

The accommodation space 7c is formed continuously with the accommodation hole 6c of the housing main body 6 with the retainer 7 fixed to the housing main body 6. [ The accommodating space 7c is divided by a partition 7c1, and the terminal portions 5 are inserted into the accommodating spaces 7c. In the present embodiment, three accommodating spaces 7c are formed, and one terminal portion 5 is inserted into each accommodating space 7c.

The retaining hole 7d is formed in the upper portion of the retainer 7 and the retaining portion 6e of the movable housing 3 can be hooked from the edge portion.

The recessed portion 7e is a side surface of the retainer 7 and is provided on the front side in the front-rear direction Y. As shown in Fig. The concave portion 7e can receive the dropout prevention portion 6f when receiving the housing main body 6 in the space 8 of the retainer 7.

The fixing groove 7f is provided behind the retainer 7 in the front-rear direction Y, and the terminal portion 5 can be fixed.

The substrate fixing portion 7g is provided on the side portions 7a1 and 7a1 of the retainer 7 along the forward and backward directions Y. [ The substrate fixing portion 7g is formed so as to protrude from the side portions 7a1 and 7a1 toward both directions of the width direction X of the connector 1. [

[Terminal portion]

As shown in Figs. 8 to 10 and Figs. 25 to 37, the terminal portion 5 is provided with the first terminal 9 and the second terminal 10. The first terminal 9 and the second terminal 10 are formed by partially bending a plate-shaped metal plate. The first terminal 9 and the second terminal 10 are connected to the same flat conductor 4 at one end and electrically connected to the same substrate contact 2b of the substrate 2 at the other end.

[First terminal]

25 to 28, the first terminal 9 is provided with a contact portion 9a, a base portion 9b, a spring portion 9c, a fixed piece portion 9d, and a substrate connection portion 9e do.

The contact portion 9a is provided along the forward and backward directions Y and has contact arms 9a1 and 9a2 which are electrically connected to the flat conductive member 4. [ The pair of contact arms 9a1 and 9a2 are provided facing each other. These contact arms 9a1 and 9a2 are formed to have substantially the same length. The contact arms 9a1 and 9a2 extend from the base 9b in a cantilevered manner and are inclined to the contact arms 9a1 and 9a2 facing each other from the base 9b side to the free end side do.

Bent portions 9a3 and 9a3 are provided on the free end sides of the contact arms 9a1 and 9a2 and are inclined toward directions away from the contact arms 9a2 and 9a1 which face the bent portion 9a3. The bent portions 9a3 of the pair of contact arms 9a1 on the upper side in the height direction Z of the contact arms 9a1 and 9a2 are positioned before and after the bent portions 9a3 of the pair of contact arms 9a2 And is located on the front side in the Y direction. The contact portion 9a of the first terminal 9 is electrically connected to the flat conductive member 4 mainly at the bent portion 9a3. The clearance between the bent portions 9a3 facing each other is formed to be narrower than the plate thickness of the flat conductive member 4. [ The flat conductor 4 inserted into the receiving hole 6c of the housing main body 6 from the insertion port 6b first contacts the contact arm 9a1 and then contacts the contact arm 9a2. At this time, the opposing contact arms 9a1 and 9a2 are elastically deformed in directions away from each other, and enter the receiving hole 6c while expanding the gap. The flat conductive member 4 inserted into the receiving hole 6c contacts the bending portion 9a3 of the contact arms 9a1 and 9a2 and is connected to the substrate 2 through the first terminal 9. [

The base portion 9b has a proximal portion 9b1 and a connecting portion 9b2 of the contact arms 9a1 and 9a2. The proximal portion 9b1 is provided continuously to the contact portion 9a. And a latching portion 9b3 is formed on the lower edge of the proximal portion 9b1. The connecting portion 9b2 is provided continuously to the upper end side of the base end portion 9b1 and connects the base end portions 9b1 facing each other.

The spring portion 9c has an outwardly curved portion 9c1, a folded back portion 9c2, and a movable portion 9c3. In the present embodiment, the spring portions 9c are extended one by one from the base ends 9b1 and 9b1.

The outward bent portion 9c1 extends from the rear end side in the front and rear direction Y to the rear end in the base end portion 9b1 of the base portion 9b and extends from the front side to the rear side in the width direction X of the connector 1, As shown in Fig.

The folding back portion 9c2 is provided continuously to the rear end side of the outwardly curving portion 9c1 and first extends rearward from the side of the outwardly curving portion 9c1 and extends downward in the height direction Z of the connector 1 And then comes back to the front.

The movable portion 9c3 is formed in a flat plate shape and has an inclined portion 9c4, a bent portion 9c5, a straight portion 9c6, and a rear end portion 9c7.

Since the movable portion 9c3 is formed in a flat plate shape, the sectional area of the terminal can be made larger than, for example, a case where the movable portion 9c3 is formed into a thin shaft shape. Therefore, the resistance in the movable portion 9c3 can be reduced. Further, since the movable portion 9c3 is formed in a flat plate shape, the movable portion 9c3 is made flexible by providing a long spring length, and is easily deformed elastically toward the plate thickness direction. The movable portion 9c3 is accommodated in the receiving space 7c of the retainer 7 when the first terminal 9 is held in the housing 3. [ However, since the accommodating space 7c of the retainer 7 is narrowed as the connector 1 is miniaturized, it is difficult to provide a long spring length.

Thus, in the present embodiment, the movable portion 9c3 has the inclined portion 9c4 and the straight portion 9c6, which are formed in a substantially linear shape, and are connected to each other by the bent portion 9c5. The inclined portion 9c4 is formed from the lower end side of the front end side of the accommodation space 7c to the lower end side of the rear end side. The straight line portion 9c6 is formed from the lower end side of the rear end side of the accommodation space 7c to the upper end side of the rear end side. By doing so, the accommodating space 7c can be used as much as possible to provide a long spring length, and the movable portion 9c3 can be made easily deformable in the plate thickness direction with a low spring coefficient.

The spacing between the opposing spring portions 9c and 9c and the substrate connecting portions 9e and 9e is set to be wider than the spacing of the opposing base end portions 9b1 by the spring portion 9c having the aforementioned outwardly curved portion 9c1 .

The fixed piece portion 9d is provided continuously to the rear end portion 9c7. The connector 1 is extended from the upper end of the rear end portion 9c7 toward the upper side in the height direction Z of the connector 1 and then extended and projected forward in the forward and backward directions Y. [ A locking projection 9d1 is formed on the lower edge of the fixed piece 9d.

The board connecting portion 9e extends rearward from the rear end of the rear end portion 9c7 along the forward and backward directions Y. The board connecting portion 9e has a fixed projection 9e1. The fixed projection 9e1 is provided on the lower side of the rear end side of the board connecting portion 9e and is connected to the board contact 2b by soldering.

[Second terminal]

29 to 32, the second terminal 10 includes a contact portion 10a, a base portion 10b, a spring portion 10c, a fixed piece portion 10d, and a substrate connection portion 10e do. The second terminal 10 is formed at a height approximately equal to the height direction Z of the first terminal 9 and the connector 1. [ And the length in the forward and backward directions Y is also formed to be approximately the same.

The contact portion 10a is provided along the forward and backward directions Y and has contact arms 10a1 and 10a2 connected electrically to the flat conductive member 4. [ The pair of contact arms 10a1 are provided facing each other. The contact arms 10a1 and 10a2 are formed to have substantially the same length. The contact arms 10a1 and 10a2 extend from the base 10b in a cantilevered manner and are formed to be inclined toward the contact arms 10a1 and 10a2 facing each other from the base 10b to the free end side .

A bent portion 10a3 is provided on the free end side of the contact arms 10a1 and 10a2 and inclined toward a direction away from the contact arms 10a1 and 10a2 facing the bent portion 10a3. The bent portions 10a3 of the pair of contact arms 10a1 on the lower side in the height direction Z of the contact arms 10a1 and 10a2 are connected to the bent portions 10a3 of the other pair of contact arms 10a2 In the front-rear direction Y. The contact portion 10a of the second terminal 10 is electrically connected to the flat conductive member 4 mainly at the bent portion 10a3. The gap between the bent portions 10a3 facing each other is formed to be narrower than the thickness of the flat conductive member 4. [ The flat conductive member 4 inserted into the receiving hole 6c of the housing main body 6 from the insertion port 6b first contacts the contact arm 10a1 and then contacts the contact arm 10a2. At this time, the opposing contact arms 10a1 elastically deform in directions away from each other, and enter the receiving hole 6c while expanding the gap. The flat conductive body 4 inserted into the receiving hole 6c in this manner is in contact with the bent portion 10a3 of the contact arm 10a1 and is electrically connected to the substrate 2 through the second terminal 10. [

In the present embodiment, the contact portion 10a of the second terminal 10 has a contact portion 9a of the first terminal 9 when the first terminal 9 and the second terminal 10 are arranged in parallel, And is disposed at a lower position in the height direction Z.

The base portion 10b has a proximal portion 10b1 and a connecting portion 10b2 of the contact arms 10a1 and 10a2. The proximal portion 10b1 is provided continuously to the contact portion 10a. And a latching portion 10b3 is formed on the upper edge of the base end 10b1. The connecting portion 10b2 is provided continuously to the lower end side of the base end 10b1 and connects the base end portions 10b1 facing each other.

The spring portion 10c has an inwardly bent portion 10c1 and a movable portion 10c3. In the present embodiment, the spring portion 10c is extended one by one from the proximal portions 10b1 and 10b1.

The inward bending portion 10c1 extends from the rear end side of the base end portion 10b1 of the base portion 10b toward the rear side in the forward and backward directions Y and is bent inward in the width direction X from the front side to the rear side .

The movable portion 10c3 is formed in a flat plate shape and has a straight portion 10c4, a bent portion 10c5, an inclined portion 10c6, a bent portion 10c7, and a straight portion 10c8.

The rectilinear section 10c4, the inclined section 10c6 and the rectilinear section 10c8 are both linearly connected and connected by the bent sections 10c5 and 10c7. The rectilinear section 10c4 is continuous from the base end 10b1 on the front end side of the accommodation space 7c and is formed therefrom across the rear end side of the accommodation space 7c. The inclined portion 10c6 is formed from the lower end position of the rear end side of the accommodation space 7c to the upper end side of the front end side of the accommodation space 7c. The straight portion 10c8 is formed from the front end side to the rear end side of the accommodation space 7c. This makes it possible to provide the spring length as long as possible by using the accommodation space 7c as much as possible and to provide the movable portion 10c3 which is easily deformed elastically in the plate thickness direction by the low spring coefficient, like the movable portion 9c3 of the first terminal 9. [ .

The movable portion 10c3 of the second terminal 10 is also formed in a flat plate shape as in the case of the movable portion 9c3 of the first terminal 9. Therefore, for example, since the sectional area of the terminal can be made larger than that in the case of a thin shaft, the resistance in the movable portion 10c3 can be reduced. The spacing between the opposing spring portions 10c and 10c and the substrate connecting portions 10e and 10e is set such that the proximal end portions 10b1 and 10b1 of the base portion 10b are spaced apart from each other by the spring portion 10c having the inward bent portion 10c1, ).

The fixed piece portion 10d is provided continuously to the upper end of the straight portion 10c8. The connector 1 is formed so as to extend in the upward direction in the height direction Z of the connector 1 and then to extend in the forward direction in the forward and backward directions Y. [ The fixed piece portion 10d is formed curving outward in the width direction X from the upper end of the board connecting portion 10e. A locking projection 10d1 is formed at the outer edge portion in the width direction X of the fixed piece portion 10d.

The board connecting portion 10e extends along the forward and backward directions Y from the rear end of the spring portion 10c toward the rear. The board connecting portion 10e has a fixed projection 10e1. The fixed projecting portion 10e1 is provided on the lower side of the rear end side of the board connecting portion 10e and is connected to the board contact 2b by soldering.

[Description of the mounting method of the terminal portion to the housing]

Next, a method of mounting the terminal portion 5 to the housing 3 will be described. The housing main body 6 is received in the space 8 of the retainer 7 and the engaging portion 6e of the housing main body 6 is attached to the retaining hole 7d of the retainer 7. [ At this time, the fall-off preventing portion 6f of the housing main body 6 is inserted into the recess 7e of the retainer 7. [ The retainer 7 is fixed to the housing main body 6 and a receiving space 7c communicating with the receiving hole 6c of the housing main body 6 is formed in the retainer 7. [

The first terminal 9 is inserted into the receiving space 7c from the insertion hole 7b of the retainer 7 and then pushed into the front side so that the contact portion 9a of the first terminal 9 is inserted into the housing main body 6 into the receiving hole 6c. At this time, the contact portion 9a is inserted into a portion of the housing main body 6 above the protruding portion 6c2. The engaging portion 9b3 provided at the lower edge of the base portion 9b1 of the base 9b is abutted against the upper edge of the protrusion 6c2 so that the base portion 9b of the first terminal 9 is engaged with the upper surface of the housing body 6 ). At this time, the fixing piece portion 9d of the substrate connecting portion 9e is press-fitted into the fixing groove 7f of the retainer 7. The locking piece 9d is provided with a locking protrusion 9d1 and the locking protrusion 9d1 is fitted to the inner wall of the fixing groove 7f to fix the first terminal 9 to the retainer 7 have.

Next, the second terminal 10 is inserted into the receiving space 7c from the insertion hole 7b of the retainer 7 and is pushed forward, so that the contact portion 10a of the second terminal 10 is inserted into the housing Is inserted into the receiving hole (6c) of the main body (6). At this time, the contact portion 10a is inserted into the lower portion of the housing body 6 below the protruding portion 6c2. The engaging portion 10b3 provided on the upper edge of the base 10b1 of the base 10b is abutted against the lower edge of the protrusion 6c2 so that the base 9b of the first terminal 9 is fitted to the housing body 6 ). At this time, the fixing piece portion 10d of the substrate connecting portion 10e is press-fitted into the fixing groove 7f of the retainer 7.

The locking piece 9d1 is provided on the fixed piece portion 10d and the locking projection 9d1 is fitted to the inner wall of the fixing groove 7f so that the second terminal 10 can be fixed to the retainer 7 have.

As described above, the spring portion 9c of the first terminal 9 has the outwardly curved portion 9c1 curved outward in the width direction X from the front side to the rear side, and the opposing spring portions 9c, 9c and the spacing between the substrate connecting portions 9e, 9e are formed to be larger than the spacing between the opposing base ends 9b1, 9b1 of the base portion 9b. On the other hand, the spring portion 10c of the second terminal 10 has an inward bent portion 10c1 bent inward in the width direction X from the front side to the rear side, and the opposing spring portions 10c, And the spacing between the substrate connecting portions 10e and 10e are formed to be narrower than the spacing between the opposed base ends 9b1 and 9b1 of the base portion 9b.

Therefore, when the second terminal 10 is attached to the housing 3, the opposing spring portions 9c, 9c and the board connecting portions 9e, 9e of the first terminal 9 fixed to the housing 3, The contact portion 10a is inserted into the receiving hole 6c. The spring portions 10c and 10c are received between the opposing spring portions 9c and 9c of the first terminal 9 while the second terminal 10 is fixed to the housing 3. [ Similarly, the board connecting portions 10e and 10e of the second terminal 10 are accommodated between the opposing board connecting portions 9e and 9e of the first terminal 9, respectively.

The contact portions 9a and 10a are arranged in parallel along the longitudinally long insertion port 6b in a state where the first terminal 9 and the second terminal 10 are attached to the housing 3. [

[Explanation of how to use]

First, a mounting method of the connector 1 on the board 2 will be described. As shown in Figs. 38 and 39, the connector 1 can be mounted on the end portion of the substrate 2. Fig. At the end of the substrate 2, notches 2a are formed along the outer shapes of the side portions 7a1, 7a1 and the rear portion 7a2 of the retainer 7, respectively. Then, the connector 1 is inserted into the notch 2a from the rear portion 7a of the retainer 7. The substrate fixing portions 7g and the substrate connecting portions 9e and 10e of the first terminal 9 and the second terminal 10 are disposed on the front surface side of the substrate 2. Then, The substrate fixing portion 7g can be fixed to the substrate 2 using a reinforcing metal or an adhesive. The board connecting portions 9e and 10e of the first terminal 9 and the second terminal 10 are soldered to the board 2. After fixing the connector 1 to the board 2,

The front portion 6a1 of the housing main body 6 is installed perpendicular to the substrate 2 with the connector 1 fixed to the substrate 2. [ For example, in order to miniaturize the connector 1 along the arrangement direction of the terminals 9 and 10, if the terminal surfaces of the contact portions 9a and 10a are arranged in parallel to the substrate 2 in parallel to the substrate 2, (9, 10) needs to be made shorter in the board width direction. However, if the terminal is shortened in this way, the cross-sectional area of the terminal becomes small, and the resistance becomes large. The longitudinal insertion port 6b provided in the housing main body 6 for inserting the flat conductive member 4 is provided so that its longitudinal direction is perpendicular to the board 2, The flat terminal surface of the contact portion 10a of the first terminal 9a and the second terminal 10 is vertically aligned along the insertion port 6b. In this way, the resistance of each of the terminals 9, 10 can be reduced by increasing the cross-sectional area without changing the size in the width direction. By doing so, it is possible to cope with a large-current use while reducing the size.

In this insertion port 6b, the flat conductive member 4 can be inserted so that the plate surface is perpendicular to the substrate 2. The bending portion 9a3 of the contact arm 9a1 on the upper side of the first terminal 9 and the bending portion 10a3 of the contact arm 10a1 on the lower side of the second terminal 10 are located in the forward and backward directions (Y). In contrast, the bent portion 9a3 of the contact arm 9a2 on the lower side of the first terminal 9 and the bent portion 10a3 of the contact arm 10a2 on the upper side of the second terminal 10 are also in the forward and backward directions Y ) At the same position. However, these contact arms 9a2, 10a2 are arranged on the rear side of the contact arms 9a1, 10a1.

Therefore, when the flat conductive body 4 is inserted into the housing main body 6 from the insertion port 6b, the contact arms 9a1 and 10a1 having the bent portions 9a3 and 10a3 are first brought into contact with the front side, and then the bent portions 9a3 , 10a3, respectively, of the contact arms 9a2, 10a2. By providing the contact arms 9a1, 9a2, 10a1 and 10a2 with different positions of the bent portions 9a3 and 10a3 as described above, the bent portions 9a3 and 10a3, which contact the balanced conductor 4 at the same time, The resistance at the time of displacing the contact arms can be reduced. Therefore, the flat conductive member 4 can be connected to the connector 1 with a smaller force.

When the balanced conductor 4 and the connector 1 are electrically connected, the terminal portion 5 generates heat. This calorific value increases as the current value rises. This heat dissipates to the outside of the connector 1 through the retaining hole 7d formed in the upper portion of the retainer 7 and the communication hole 6d.

[Description of Floating Structure]

The base portions 9b and 10b are fixed to the housing main body 6 and the substrate connecting portions 9e and 10e are fixed to the retainer 7 and are soldered to the substrate 2. [ On the other hand, the retainer 7 has the substrate fixing portion 7g, and the connector 1 can be fixed to the substrate 2 by using a reinforcing metal or an adhesive. The connector 1 has spring portions 9c and 10c at the first terminal 9 and the second terminal 10, respectively.

A gap L is formed between the side surface portion 7a1 of the retainer 7 and the inner surface of the side surface portion 6a3 of the housing main body 6 in a state in which the housing main body 6 is accommodated in the retainer 7. [ When vibration is applied to the connector 1 or the substrate 2, the spring portions 9c and 10c are elastically deformed. The contact portions 9a and 10a of the first terminal 9 and the second terminal 10 in the free state are elastically deformed correspondingly and the housing main body 6 is elastically deformed corresponding to the clearance L with respect to the retainer 7. [ Relative displacement in the width direction X by a minute. Even if the housing main body 6 is relatively displaced relative to the retainer 7 as described above, since the fall-off preventing portion 6f of the housing main body 6 is inserted into the recess 7e of the retainer 7, Even if the main body 6 is displaced in the height direction Z, it is possible to prevent the detachment of the main body 6 from the retainer 7.

The planar conductor 4 inserted from the insertion port 6b is first brought into contact with the bent portions 9a3 and 10a3 at the distal end portion 4a and then inserted into the inside at the normal contact position 4b. The distance in the forward and backward directions Y from the tip end 4a to the regular contact position 4b of the flat conductive member 4 is secured as a movable base of the flat conductive member 4. [ Therefore, when vibration is applied to the substrate 2 or the connector 1, the balanced conductor 4 is in a state of being in contact with the bent portions 9a3 and 10a3 at any position from the normal contact position 4b to the tip end portion 4a In the forward and backward directions (Y).

The length of the insertion port 6b in the height direction Z is longer than the length in the height direction Z of the connector 1. [ A portion exceeding the length in the height direction Z of the flat conductive member 4 in the height direction Z of the insertion port 6b is secured as a movable stand. Therefore, the flat conductive member 4 can be displaced in the height direction Z even when the flat conductive member 4 is inserted into the insertion port 6b and is in contact with the terminal portion 5. [

Thus, even if vibration occurs, the flat conductive member 4 can be relatively displaced with respect to the connector 1 in the width direction X, the back and forth direction Y, and the height direction Z. [ Therefore, even if vibration is generated, the connector 1 can be made easy to maintain the conductive connection of the substrate 2. [

[Description of Operation and Effect]

The functions and effects of the present embodiment other than those already described will be described.

The contact portion 9a of the first terminal 9 and the contact portion 10a of the second terminal 10 are arranged in parallel along the height direction Z as shown in Figs.

The flat conductor 4 inserted into the receiving hole 6c of the housing main body 6 from the insertion port 6b is connected to the two contact arms 9a1 and 9a2 of the first terminal 9 and the two contact arms 9a1 and 9a2 of the second terminal 10, And contacts the two contact arms 10a1 and 10a2. 9A2 and the contact arms 10a1 and 10a2 are extended by pushing the flat conductive member 4 into the insertion port 6b so that the flat conductive member 4 is bent to the bent portions 9a3, 10a3. Thus, the flat conductive member 4 is electrically connected to the substrate 2 through the terminal portion 5. A plurality of contact arms 9a1, 9a2, 10a1 and 10a2 are in contact with each other in order and finally these contact arms come into contact with the flat conductive member 4 so that the current value of each contact arm can be lowered to correspond to a large current have. This makes it possible to reduce the amount of heat generated from the contact arms, as compared with the case where a plurality of contact arms are provided and the current is concentrated on, for example, one contact arm.

The spring portions 9c and 10c of the first terminal 9 and the second terminal 10 are branched from the bases 9b and 10b, respectively. As a result, the spring coefficient can be lowered to facilitate elastic deformation. In addition, the current flowing from the single flat conductor 4 to the terminal portion 5 can be flowed to the four spring portions, and the current value flowing through the respective spring portions 9c, 10c can be reduced to correspond to the large current. Accordingly, the amount of heat generated from the spring portion can be reduced, for example, as compared with the case where the current is concentrated on, for example, one spring portion.

The spring portion 10c of the second terminal 10 is inserted into the spring portion 9c of the branching first terminal 9 so that the connector 1 can be downsized in the width direction X .

The housing 3 holds the first terminal 9 and the second terminal 10 in parallel so that the terminal surface in a flat plate shape follows the longitudinal direction perpendicular to the surface of the substrate 2, It is possible to make the cross-sectional area of each of the terminals 9, 10 larger, while making each connector 1 smaller in the width direction X than in the case of arranging the terminal surfaces in the lateral direction. Therefore, the terminals 9 and 10 can be made low resistance.

The spring portion 9c of the first terminal 9 and the spring portion 10c of the second terminal 10 are formed to have approximately the same length. By doing so, the resistance values of the first terminal 9 and the second terminal 10 can be made equal to each other, and the current values of the terminals 9 and 10 can be made approximately equal. As a result, the heat generation of the first terminal 9 and the second terminal 10 can be suppressed to the same degree, and it is possible to suppress only one of the terminals from becoming excessively hotter than the other terminal.

The contact portion 9a of the first terminal 9 is inserted above the protruding portion 6c2 of the receiving hole 6c and the contact portion 10a of the second terminal 10 is inserted into the receiving hole 6c2, Is inserted below the projecting portion 6c2 in the projecting portion 6c. Therefore, the respective contact portions 9a, 9a are arranged along the height direction Z of the connector 1. [ Accordingly, the respective bent portions 9a3 and 10a3 are also arranged along the height direction Z. [

The contact arms 9a1 and 9a2 of the first terminal 9 and the contact arms 10a1 and 10b of the second terminal 10 are fixed with the first terminal 9 and the second terminal 10 fixed to the housing 3, , 10a2 are arranged along the height direction Z.

By doing so, compared with the case where the terminal surface of the first terminal 9 and the terminal surface of the second terminal 10 are arranged in parallel with the substrate 2, for example, the width direction X is smaller than the case of arranging the connector 1 ).

According to the connector 1 of the present embodiment, the resistance of the terminal portion 5 can be lowered, and the connector 1 that can cope with a large current application can be realized. In addition, it is possible to realize the connector 1 having a floating structure and corresponding to a large current. It is possible to realize the connector 1 having a floating structure with low resistance and a low spring coefficient by the terminal portion 5 in a space saving manner. Therefore, the connector 1 with high connection reliability and high connection reliability can be realized in applications requiring high current correspondence such as on-vehicle devices.

Variations :

In the present embodiment, the connector 1 is an edge connector capable of horizontal fitting. However, it may be a connector 1 that is mounted at a position other than the end of the substrate 2. In addition, the connector 1 can be vertically fitted. As a result, the degree of freedom of the mounting structure on the substrate 2 can be increased.

In this embodiment, the engagement portion 6e is provided in the housing main body 6, and the engagement hole 7d is formed in the retainer 7. However, conversely, the retaining portion 6e may be provided in the retainer 7, and the retaining hole 7d may be formed in the housing main body 6. [ In this embodiment, the dropout preventing portion 6f is provided in the housing main body 6, and the recess 7e is formed in the retainer 7. The detachment preventing portion 6f may be provided in the retainer 7 and the recess 7e may be formed in the housing main body 6. [

In this embodiment, the connector 1 is provided with three terminal portions 5, and an example in which the balanced conductors 4 are connected to the respective terminal portions 5 one by one is shown. An example in which the housing main body 6 of the connector 1 has three insertion ports 6b and receiving holes 6c and in which the retainer 7 has three accommodating spaces 7c and three insertion holes 7b . However, the number of the terminal portions 5 provided in the connector 1 can be increased or decreased according to the number of the planar conductors 4 to which the connector 1 is connected. In addition, the number of the terminal portions 5 to which the respective flat conductive members 4 are electrically connected can be increased or decreased without being limited to one. The number of the insertion port 6b and the receiving hole 6c of the housing main body 6 and the number of the accommodating space 7c of the retainer 7 and the number of the insertion holes 6c of the housing main body 6 are determined according to the number of the flat conductive bodies 4 and the number of terminal portions 5, The number of holes 7b can be increased or decreased.

In the present embodiment, the contact portions 9a, 10a of the first terminal 9 and the second terminal 10 each take one arm pair of contact arms 9a1, 9a2 or 10a1, 10a2 , And a total of four contact arms are shown. On the contrary, there may be only two contact arms or three or more pairs of contact arms. In the case where only two contact arms are provided and a contact arm having a wider width in the direction of the plate surface is provided, the contact area with the flat conductor 4 can be increased, thereby making the connector 1 capable of coping with a larger current. Further, for example, in the case of having three or more pairs of thinner contact arms, it is possible to reduce the heat generation by reducing the current value to be divided into the contact arms. Since the contact arms can easily follow the surface shape of the flat conductive member 4, the contact arms and the flat conductive member 4 can be reliably contacted.

1: connector 2: substrate
2a: notch 2b: substrate contact point
3: Housing 4: Balanced conductor
4a: tip portion 4b: regular contact position
5: terminal portion 6: housing main body
6a1: front part 6a2: upper surface part
6a3: side portion 6b:
6c: receiving hole 6c1: partition wall
6c2: protruding portion 6d: communicating hole
6e: Retaining part 6f: Disengagement prevention part
7: retainer 7a1:
7a2: rear face portion 7b: inserting hole
7c: accommodation space 7c1: partition wall
7d: Retaining hole 7e:
7f: fixing groove 7g: substrate fixing portion
8: space 9: first terminal
9a: contact portion 9a1: contact arm (upper side)
9a2: contact arm (lower side) 9a3:
9b: base 9b1:
9b2: connecting portion 9b3:
9c: spring portion 9c1: outward bent portion
9c2: folded back portion 9c3: movable portion
9c4: inclined portion 9c5: bent portion (spring portion)
9c6: straight portion 9c7: rear end portion
9d: Fixed piece portion 9d1:
9e: substrate connecting portion 9e1:
10: second terminal 10a:
10a1: contact arm (lower side) 10a2: contact arm (upper side)
10a3: bent portion 10b:
10b1: base end portion 10b2:
10b3: Retaining portion 10c: Spring portion
10c1: inward bending portion 10c3:
10c4: straight line portion 10c5: bent portion (spring portion)
10c6: inclined portion 10c7: bent portion
10c8: straight line portion 10d: fixed piece portion 10d1:
10e: substrate connecting portion 10e1: fixing projection L:

Claims (8)

A first terminal and a second terminal in the form of a flat plate connecting one end to the same balanced conductor as an object to be connected and the other end to the same substrate contact of the substrate,
And a housing for holding the first and second terminals in parallel so as to follow the longitudinal direction perpendicular to the surface of the substrate,
The first and second terminals are respectively connected to the first and second terminals,
A contact portion electrically connected to the balanced conductor,
A plurality of flat plate-like terminal pieces branched from the contact portion and extending in parallel;
And a substrate connecting portion that is electrically connected to the substrate contact at a distal end of each extending portion. The method according to claim 1,
And the extending portion of the second terminal is disposed between the extending portions of the first terminals. 3. The method according to claim 1 or 2,
The housing having an insertion port of the parallel conductor along the longitudinal direction,
Wherein the contact portion of the first terminal and the contact portion of the second terminal are arranged vertically along the longitudinal direction. 3. The method according to claim 1 or 2,
Wherein the housing has a communication hole communicating with at least one of the contact portion of the first terminal or the contact portion of the second terminal in the inside of the housing. 3. The method according to claim 1 or 2,
Wherein the extension portion of the first and second terminals has the movable piece portion in which the straight portion and the bent portion are combined. 3. The method according to claim 1 or 2,
Wherein the contact portions of the first and second terminals have a plurality of arm-shaped contact portions. 3. The method according to claim 1 or 2,
Wherein the housing has an engagement portion which is engaged with the surface of the substrate in a state where the housing is overlapped with the thickness of the substrate in the longitudinal direction. 3. The method according to claim 1 or 2,
The first and second terminals having a fixed piece for the housing,
The housing
A fixed housing in which the respective fixed piece portions of the first and second terminals are fixed,
And a movable housing to which the contact portions of the first and second terminals are fixed,
Wherein the movable housing is relatively displaceable by elastic deformation of the extension portions of the first and second terminals relative to the fixed housing.

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