WO2013153788A1

WO2013153788A1 - Connector, housing with lead wire used in connector, housing, and contact

Info

Publication number: WO2013153788A1
Application number: PCT/JP2013/002341
Authority: WO
Inventors: 大倉　健治
Original assignee: パナソニック株式会社
Priority date: 2012-04-12
Filing date: 2013-04-04
Publication date: 2013-10-17
Also published as: JP2013235808A; TW201342719A

Abstract

A connector (10) is provided with a contact (50) connected to a substrate (60), and a housing (20) that accommodates and secures a lead wire (30) without intervention by the contact (50) and fits together with the contact (50). In the housing (20), an open section (24), at least one face of which is open, is formed and the accommodated and secured lead wire (30) is held so as to be exposed from the open section (24). Moreover, the contact (50) is provided with a contact section (53) that opens on the side that faces the open section (24). The contact section (53) is inserted into the open section (24) and the lead wire (30) is inserted from the open part of the contact section (53), as a result, the contact (50) is made to fit together with the housing (20) in a state where the contact section (53) is in contact with the lead wire (30).

Description

Connector, housing with lead wire used for the connector, housing and contact

The present invention relates to a connector, a housing with a lead wire used for the connector, a housing and a contact.

Conventionally, a connector (a poke-in connector) that electrically connects a lead wire and a substrate is known (see, for example, Patent Document 1).

In this Patent Document 1, the connector includes a contact connected to the substrate, a lead wire fixed to the contact, and a housing to which the contact is attached.

Then, the contact connected to the substrate is attached to the housing, and the lead wire is electrically connected to the substrate by inserting and fixing the lead wire to the contact attached to the housing.

JP 2010-514138 A

However, in the above conventional technique, the lead wire is fixed to the contact by moving the lead wire in the axial direction and inserting it into the contact attached to the housing. For this reason, the lead wire is bent when the lead wire is inserted into the contact, and there is a possibility that it takes time to install the lead wire.

Therefore, an object of the present invention is to obtain a connector capable of easily attaching a lead wire to a contact, a housing with a lead wire used for the connector, a housing and a contact.

A first feature of the present invention is a connector for electrically connecting a lead wire and a board, wherein the connector accommodates and fixes a contact connected to the board and the lead wire without the contact. And a housing for fitting the contact, wherein the housing is formed with an opening having at least one opening, and holds and fixes the lead wire accommodated and fixed in an exposed state from the opening. And the contact includes a contact portion that is open on a side facing the opening, and the lead wire is inserted into the opening from the opening portion of the contact portion. The gist is that the contact fits into the housing with the lead wire in contact with the contact portion.

According to a second aspect of the present invention, the lead wire includes a crushing portion formed by crushing a tip portion, and the housing includes a locking portion that locks the crushing portion of the lead wire. This is the gist.

According to a third aspect of the present invention, the housing has a mounting portion on which the lead wire is mounted, and the mounting surface of the mounting portion has a shape corresponding to the surface shape of the lead wire. It is a summary.

The fourth feature of the present invention is summarized in that the housing has a through hole through which the lead wire is exposed on a wall surface surrounding the locking portion.

The fifth feature of the present invention is summarized in that the through-holes are respectively provided on opposite wall surfaces of the wall surface surrounding the locking portion.

According to a sixth aspect of the present invention, the contact includes a lock portion having a lock piece locked to the wall surface of the housing, and the lock piece is bent so that a tip bites into the wall surface of the housing. It is a summary.

A seventh feature of the present invention is summarized in that the contact includes a lock portion having a lock piece for holding the lead wire.

The eighth feature of the present invention is summarized in that the lead wire includes a core portion made of a single wire.

The ninth feature of the present invention is summarized in that the lead wire includes a core portion formed of a stranded wire.

The tenth feature of the present invention is summarized in that the lead wire is formed of a coaxial cable.

The eleventh feature of the present invention is that it is a housing with a lead wire used for the connector, in which the lead wire is housed and fixed.

The twelfth feature of the present invention is that it is a housing used for the connector.

The gist of the thirteenth feature of the present invention is a contact used for the connector.

According to the present invention, the contact portion of the contact is inserted into the opening portion of the housing and the lead wire is inserted from the opening portion of the contact portion, so that the contact is fitted into the housing with the lead wire contacting the contact portion. ing. That is, the lead wire is inserted into the contact by moving the lead wire in a direction crossing the axial direction. Therefore, the lead wire can be prevented from being bent when the lead wire is inserted into the contact, and the lead wire can be attached to the contact more easily.

It is a perspective view which decomposes | disassembles and shows a part which shows the connector concerning 1st Embodiment of this invention. It is a perspective view which shows the housing concerning 1st Embodiment of this invention. It is a figure which shows the housing concerning 1st Embodiment of this invention, Comprising: (a) is a rear view, (b) is a side view, (c) is a top view, (d) is a front view. 3A and 3B are views showing a housing according to the first embodiment of the present invention, in which FIG. 3A is a cross-sectional view taken along the line AA in FIG. 3A, and FIG. FIGS. 3C and 3C are CC cross-sectional views of FIG. 3C, and FIG. 3D is a DD cross-sectional view of FIG. It is a perspective view which shows the state before inserting the lead wire concerning 1st Embodiment of this invention in a housing. It is a perspective view which shows the housing with a lead wire which inserted the lead wire concerning 1st Embodiment of this invention in the housing. It is a perspective view which shows the lead wire concerning 1st Embodiment of this invention. It is a figure which shows the housing with a lead wire concerning 1st Embodiment of this invention, Comprising: (a) is a rear view, (b) is a side view, (c) is a top view, (d) is a front view. FIGS. 8A and 8B are views showing a housing with lead wires according to the first embodiment of the present invention, in which FIG. 8A is a cross-sectional view taken along the line AA in FIG. 8A, and FIG. B sectional view, (c) is a CC sectional view of FIG. 8 (c), and (d) is a DD sectional view of FIG. 8 (c). It is a figure which shows the contact concerning 1st Embodiment of this invention, Comprising: (a) is a perspective view which shows the state in which the bottom wall part of a contact is located below, (b) is a bottom wall part of a contact upper side It is a perspective view which shows the state located in FIG. It is a figure which shows the contact concerning 1st Embodiment of this invention, Comprising: (a) is a top view, (b) is a side view, (c) is a front view. It is a figure which shows the attachment method to the contact of the housing with a lead wire concerning 1st Embodiment of this invention in the position corresponding to a contact part, Comprising: (a) is a state before attaching the housing with a lead wire to a contact. The figure shown, (b) is a figure which shows the state which attached the housing with a lead wire to the contact. It is a figure which shows the attachment method to the contact of the housing with a lead wire concerning 1st Embodiment of this invention in the position corresponding to a lock | rock part, Comprising: (a) is the state before attaching the housing with a lead wire to a contact. The figure shown, (b) is a figure which shows the state which attached the housing with a lead wire to the contact. It is explanatory drawing which illustrates typically the 1st use condition of the connector concerning 1st Embodiment of this invention. It is explanatory drawing which illustrates typically the 2nd use condition of the connector concerning 1st Embodiment of this invention. It is explanatory drawing which illustrates typically the 3rd use condition of the connector concerning 1st Embodiment of this invention. It is explanatory drawing which illustrates typically the 4th use condition of the connector concerning 1st Embodiment of this invention. It is a figure which shows the contact concerning 2nd Embodiment of this invention, Comprising: (a) is a perspective view which shows the state in which the bottom wall part of a contact is located below, (b) is the bottom wall part of a contact upper side It is a perspective view which shows the state located in FIG. It is a figure which shows the contact concerning 2nd Embodiment of this invention, Comprising: (a) is a top view, (b) is a side view, (c) is a front view. It is a figure which shows the attachment method to the contact of the housing with a lead wire concerning 2nd Embodiment of this invention in the position corresponding to a contact part, Comprising: (a) is a state before attaching the housing with a lead wire to a contact. The figure shown, (b) is a figure which shows the state which attached the housing with a lead wire to the contact. It is a figure which shows the attachment method to the contact of the housing with a lead wire concerning 2nd Embodiment of this invention in the position corresponding to a lock | rock part, Comprising: (a) is the state before attaching the housing with a lead wire to a contact. (B) is a figure which shows the state which attached the housing with a lead wire to the contact. It is a perspective view which decomposes | disassembles and shows a part which shows the connector concerning 3rd Embodiment of this invention. It is the figure which showed the housing with a lead wire concerning 3rd Embodiment of this invention, Comprising: (a) is a perspective view which shows the state before inserting a lead wire in a housing, (b) is a housing a lead wire. It is a perspective view which shows the state after inserting in. It is a perspective view which shows the attachment method to the contact of the housing with a lead wire concerning 3rd Embodiment of this invention, Comprising: (a) is a figure which shows the state before attaching the housing with a lead wire to a contact, (b) These are figures which show the state which attached the housing with a lead wire to the contact. It is the figure which showed the housing with a lead wire concerning 4th Embodiment of this invention, Comprising: (a) is a perspective view which shows the state before inserting a lead wire in a housing, (b) is a housing a lead wire. It is a perspective view which shows the state after inserting in. FIG. 6 is a view showing a modification of the lead wire according to the first to fourth embodiments of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following description, the longitudinal direction of the housing (axial direction of the lead wire) is the X direction, the thickness direction of the housing is the Z direction, and the short direction (width direction) of the housing is the Y direction.

In addition, the same components are included in the following embodiments. Therefore, in the following, common reference numerals are given to those similar components, and redundant description is omitted.

(First embodiment)
As shown in FIG. 1, the connector 10 according to the present embodiment includes a contact 50 connected to a substrate 60 and a plug housing (housing) 20 into which the contact 50 is fitted. The connector 10 is configured such that a contact 50 mounted on a substrate 60 is fitted into a resin plug housing (housing) 20 in which the lead wire 30 is accommodated and fixed, and the lead wire 30 and the contact 50 are brought into contact with each other. And the substrate 60 are electrically connected.

As shown in FIGS. 2 to 4, the plug housing 20 has a substantially rectangular parallelepiped shape, and includes a peripheral wall portion 21 and a top wall portion 22.

Further, the plug housing 20 is formed with an opening 24 having an opening on at least one surface (the upper side in FIG. 3B). In the present embodiment, the opening 24 is defined by the peripheral wall portion 21 and the vertical wall portion 23 extending in the width direction (short direction: X direction).

In the opening 24, a plurality (three) of islands 25 are arranged in parallel in the longitudinal direction (X direction) of the plug housing 20. Of the three island portions 25, the central island portion 25a is fixed to the peripheral wall portion 21 by the vertical wall portion 23a, and the island portions 25b at both ends are fixed to the peripheral wall portion 21 by the vertical wall portion 23b. .

In the three islands 25, through holes 25c for inserting the lead wires 30 are formed so as to penetrate in the X direction. In the present embodiment, the through hole 25 c has a substantially U shape that opens to the top wall portion 22 side when viewed from the front (as viewed from the X direction), and the opening 22 a formed in the top wall portion 22. Communicated with. With this configuration, the plug housing 20 in which the through holes 25c are formed in the

island portions

25a and 25b can be easily resin-molded using a mold.

Also, between the island portions 25 adjacent to each other, a placement portion 26 on which the lead wire 30 is placed is formed so as to extend in the X direction. The placement surface 26 a of the placement portion 26 has a shape corresponding to the surface shape of the lead wire 30. In the present embodiment, the lead wire 30 has an elongated cylindrical shape, and the surface shape of the lead wire 30 is a cylindrical side surface shape. For this reason, the mounting surface 26a of the mounting portion 26 has an arc shape in which the center in the Y direction is recessed so as to contact the surface shape of the lead wire 30 (the side surface of the cylinder).

Further, on the outer side in the X direction of the island portions 25b at both ends, the insertion recess 20c for inserting the lead wire 30 into the plug housing 20 and the tip of the lead wire 30 inserted into the plug housing 20 are locked. And a locking portion 20b to be formed.

The insertion recess 20c is opened to the outside in the X direction and is formed so that the inner side in the X direction communicates with the through hole 25c of the island portion 25b, and the lead wire 30 is inserted from the opening in the outer side in the X direction. Yes.

On the other hand, the locking portion 20b is formed so that the inner side in the X direction communicates with the through hole 25c of the other island portion (the island portion other than the island portion 25b having the through hole 25c communicating with the insertion recess 20c) 25b. The outer side in the X direction is a space portion defined by the peripheral wall portion 21. In the present embodiment, the peripheral wall portion 21 prevents the lead wire 30 inserted from the insertion recess 20c from penetrating.

Thus, in this embodiment, the insertion recess 20c, the through hole 25c of the end-side island 25b, the mounting surface 26a of the mounting portion 26, the through-hole 25c of the central island 25a, and the mounting portion 26 are mounted. The mounting surface 26a, the through hole 25c of the end-side island 25b, and the locking portion 20b form an insertion hole 20a through which the lead wire 30 is inserted into the plug housing.

In the present embodiment, a through-hole through which the lead wire 30 is exposed is formed in the wall surface surrounding the locking portion 20b of the plug housing 20.

Specifically, the lead wire 30 is exposed by forming an opening (through hole) 22b communicating with the locking portion 20b in the top wall portion 22.

Furthermore, a through hole is formed on the side opposite to the opening (through hole) 22b of the locking portion 20b. That is, the through-holes are formed on both sides in the Z direction (wall surfaces opposite to each other on the wall surface surrounding the locking portion). With this configuration, the locking portion 20b is formed so as to penetrate both sides in the Z direction, and the tip of the lead wire 30 inserted into the locking portion 20b extends in the thickness direction (Z direction) of the plug housing. It will be exposed from both sides.

The lead wire 30 has an elongated cylindrical shape, and is formed by covering a conductive core portion 32 with an insulating covering portion 31. Then, the lead wire 30 is inserted into the insertion hole 20a in a state in which the core portion 32 is exposed by peeling off the covering portion 31 on the distal end side. That is, the exposed core part 32 is inserted through the insertion hole 20a (see FIG. 5). In the present embodiment, the core portion 32 of the lead wire 30 is composed of a single wire made of one copper wire (φ0.5).

Then, the tip 32a of the core portion 32 inserted through the insertion hole 20a is crushed while being inserted into the locking portion 20b, so that a flattened crushing portion 32b is formed.

At this time, since the locking portion 20b is formed so as to penetrate both sides in the Z direction, a crushing jig (not shown) is inserted from both sides in the Z direction (in the direction of arrow a in FIG. 6). By doing so, the front-end | tip 32a of the core part 32 can be crushed.

By forming the crushed portion 32b, when the lead wire 30 inserted into the plug housing 20 is moved in the detaching direction, the crushed portion 32b abuts (locks) to the wall surface 23c of the vertical wall 23b. Therefore, it is possible to suppress the lead wire 30 from coming out of the plug housing 20.

The contact 50 has a shape obtained by bending a single plate-shaped metal plate, and includes a bottom wall portion 51, and a substrate connection portion 52 that extends from the bottom wall portion 51 and is connected to the substrate 60. It is equipped with. The board connecting part 52 is formed so as to protrude from the center part in the X direction of the bottom wall part 51 toward the outside in the Y direction.

Further, the contact 50 includes a contact portion 53 that is in contact with and electrically connected to the core portion 32 of the lead wire 30, and a lock portion 54 having a lock piece 54 a that is locked to the wall surface of the plug housing 20. ing.

The contact portions 53 are formed on both sides of the board connecting portion 52 in the X direction, and are connected to the outer piece 53a formed so as to rise from both ends of the bottom wall portion 51 in the Y direction and to the outer piece 53a so as to be elastically deformable. An inner piece 53b. The inner piece 53b is formed with a holding piece 53c that holds the core portion 32 of the lead wire 30, and the holding portion 53c on both sides holds the core portion 32 of the lead wire 30. At this time, the contact part 53 is formed so that the upper side (side facing the opening part 24) of FIG.

Further, the lock portions 54 are formed on both sides of the contact portion 53 in the X direction. The lock portion 54 includes a lock piece 54a having a shape in which a piece of the bottom wall portion 51 extending from both ends in the Y direction is bent from the outside to the inside. By engaging the lock piece 54a with the wall surface of the plug housing 20, more specifically, the side wall surface 25d of the island 25b on the end side, the fitting between the plug housing 20 and the contact 50 is released. Is suppressed. In this embodiment, the engagement between the plug housing 20 and the contact 50 is locked by locking the side wall surfaces 25d on both sides in the Y direction of the end side island portion 25b by the lock pieces 54a on both sides in the Y direction. Yes.

A space 55 is formed between the contact portions 53 on both sides in the X direction, and the central island portion 25a is accommodated in the space 55.

In addition, a notch 21 a is formed at the center in the X direction of the peripheral wall portion 21 of the plug housing 20, and the peripheral wall portion 21 interferes with the board connecting portion 52 when the contact 50 is fitted to the plug housing 20. It is supposed not to.

The connector 10 having the above configuration is assembled as follows.

First, as shown in FIGS. 5 and 6, the exposed core portion 32 of the lead wire 30 is inserted into the insertion hole 20 a of the plug housing 20.

Then, by inserting a crushing jig (not shown) from both sides in the Z direction (in the direction of arrow a in FIG. 6), the tip 32a of the core portion 32 is crushed. Thus, by forming the crushed portion 32b, when the lead wire 30 inserted into the plug housing 20 is moved in the disengagement direction, the crushed portion 32b abuts (locks) to the vertical wall 23b. The lead wire 30 can be prevented from coming off the plug housing 20.

In this way, a housing 40 with lead wires as shown in FIG. 6 is formed. At this time, the lead wire 30 is housed and fixed in the plug housing 20 without the contact 50 interposed therebetween. Further, the plug housing 20 holds the lead wire 30 accommodated and fixed in a state where the core portion 32 is exposed from the opening portion 24.

Next, the substrate connection part 52 is connected to the substrate 60 by soldering or the like, and the contact 50 is mounted (connected) to the substrate 60.

Then, in the state where the contact 50 attached to the housing 40 with the lead wire and the substrate 60 is arranged so that the opening 24 side of the plug housing 20 and the opening side of the contact portion 53 of the contact 50 face each other. The core part 32 where the lead wire 30 is exposed is inserted from the opening side of the contact part 53 and is held between the holding pieces 53c (see FIG. 12). In addition, when inserting the core part 32 from the opening side of the contact part 53, since it is hold | suppressed by the mounting surface 26a of the mounting part 26 provided in the opposite side (upper side of FIG. 12) of the contact part 53 side, It is suppressed that the core part 32 bends.

On the other hand, the lock pieces 54a of the lock portion 54 are locked so as to sandwich the side wall surfaces 25d on both sides in the Y direction of the end island portion 25b, thereby locking the fitting between the plug housing 20 and the contact 50 (see FIG. 13). At this time, the central island portion 25 a is accommodated in the space 55.

In this way, the plug housing 20 and the contact 50 are fitted, and the substrate 60 and the lead wire 30 are electrically connected. The contact 50 and the substrate 60 may be connected after the housing 40 with the lead wire and the contact 50 are fitted.

Next, a usage example of the connector 10 according to the present embodiment will be described. Note that the usage examples described below are merely examples, and the usage method of the connector 10 is not limited to these usage examples.

First, as shown in FIG. 14, the connector 10 according to the present embodiment can be used to electrically connect the substrates (LED substrates) 60 on which the LEDs 61 are mounted. FIG. 14 discloses a structure in which four substrates 60 are connected in series. In addition to the LEDs 61, the power supply circuit 62 is mounted on the leftmost substrate 60 in FIG. 14, and the LEDs 61 are mounted on the other three substrates 60, but the power supply circuit 62 is mounted. Not. A board-to-wire type connector 10 is attached to the left side of the leftmost substrate 60 of FIG. 14 on which the power supply circuit 62 is mounted. On the left side of the leftmost substrate 60 in FIG. 14, two contacts 50 are mounted (connected) so as to be juxtaposed in the width direction (vertical direction in FIG. 14). The housing 50 fixed to one side of the lead wire 30 is mounted on each contact 50, and the lead wire 30 and the substrate 60 are electrically connected. The other side of the lead wire 30 is electrically connected to an external power source (not shown) so that power can be supplied. Also, the two contacts 50 are mounted (connected) so as to be juxtaposed in the width direction (vertical direction in FIG. 14) on the right side of the leftmost substrate 60 in FIG. The two contacts 50 are also mounted (connected) so as to be juxtaposed in the width direction (vertical direction in FIG. 14) on the side of the substrate 60 adjacent to each other.

In these parts of the board 60 (the right side of the leftmost board 60 and the left and right sides of the other three boards 60), connectors 10 are formed on both sides of the lead wire 30 (board-to-board type). A connector 10) is attached.

That is, the contact 50 mounted on the right side of the leftmost substrate 60 in FIG. 14 and the contact 50 mounted on the left side of the second substrate 60 from the left in FIG. Each housing 20 is mounted. Thus, the contact 50 mounted on the right side of the leftmost substrate 60 and the contact mounted on the left side of the second substrate 60 from the left in FIG. By fitting 50, the board-to-board type connector 10 is attached so as to straddle the leftmost board 60 in FIG. 14 and the second board 60 from the left in FIG. Thus, the leftmost substrate 60 in FIG. 14 and the second substrate 60 from the left in FIG. 14 are electrically connected. The connection between the second substrate 60 from the left in FIG. 14 and the second substrate 60 from the right in FIG. 14, and the connection between the rightmost substrate 60 in FIG. 14 and the second substrate 60 from the right in FIG. It is. Then, the upper and lower two contacts 50 mounted on the right side of the rightmost substrate 60 in FIG. 14 are mounted with the housings 20 fixed on both sides of the lead wire 30, respectively. Thus, the upper and lower two contacts 50 mounted on the right side of the rightmost substrate 60 in FIG. 14 are short-circuited.

Thus, by using the board-to-board type connector 10, it is not necessary to short-circuit using a jumper pin or the like as in the prior art, and it is not necessary to use a board to which a jumper pin can be attached. That is, the circuit can be short-circuited using any of the substrates 60 in FIG. 14, and the versatility of the substrate can be improved.

In this way, by using the board-to-wire type connector 10 and the board-to-board type connector 10 and electrically connecting the respective substrates 60, the LEDs 61 mounted on the respective substrates 60 can be turned on. It becomes like this. At this time, since the connector 10 described above is used, the lead wire 30 can be attached to the contact 50 more easily. Further, since low-profile connectors are used as the respective connectors (board-to-wire type connector 10 and board-to-board type connector 10), the connector 10 is attached to the substrate 60 without blocking the light emission of the LED 61. Will be able to.

As shown in FIG. 15, it is also possible to connect a substrate (LED substrate) 60 on which the LED 61 is mounted using the connector 10, the floating connector 63, and the short connector 64. FIG. 15 also discloses a configuration in which four substrates 60 are connected in series. In addition to the LEDs 61, a power circuit 62 is mounted on the leftmost substrate 60 in FIG. 15, and the LEDs 61 are mounted on the other three substrates 60, but the power circuit 62 is mounted. Not. Further, the connector 10 according to the present embodiment is mounted on the left side of the leftmost substrate 60 in FIG. 15 on which the power circuit 62 is mounted, and is connected to an external power source (not shown) to supply power. It can be done. Further, the leftmost substrate 60 and the

middle substrates

60 and 60 in FIG. 15 are electrically connected to each other by a floating connector 63. The floating connector 63 is used to electrically connect the two

substrates

60 and 60 while absorbing the displacement.

Further, a short-circuit connector 64 is attached to the right side of the rightmost substrate 60 in FIG.

As described above, the LEDs 61 mounted on the respective substrates can be turned on also by electrically connecting the respective substrates 60 using the connector 10, the floating connector 63, and the shorting connector 64.

At this time, if a low profile connector is used as each connector (connector 10, floating connector 63, and short connector 64), the LED 61 can be attached to the substrate 60 without blocking light emission. .

Further, as shown in FIG. 16, the connector 10 according to the present embodiment can also be used for the LED bulb 70. In other words, it is used to electrically connect a substrate (LED substrate) 60 disposed in the glass sphere 71 of the LED bulb 70 and mounted with the LED 61 and a substrate (power substrate) 60 mounted with the power circuit 62. be able to.

In FIG. 16, in a glass sphere 71, a substrate (LED substrate) 60 on which an LED 61 is mounted is disposed substantially horizontally so that the side on which the LED 61 is mounted faces upward, and a substrate (power supply) on which a power circuit 62 is mounted. Substrate) 60 is disposed substantially horizontally below substrate (LED substrate) 60. Reference numeral 65 denotes a circuit component such as a capacitor.

In FIG. 16, board-to-board type connectors 10 having connectors 10 formed on both sides of the lead wire 30 are attached to the respective substrates (LED substrate and power supply substrate) 60, whereby the substrate (LED substrate) 60 and substrate (Power supply board) 60 is electrically connected.

The substrate (power supply substrate) 60 is electrically connected to a base 72 by a lead wire (not shown). By attaching the base 72 to a socket (not shown) electrically connected to an external power source, the LED 61 Then, the LED 61 can be turned on.

Further, the substrate (power supply substrate) 60 may be disposed substantially vertically below the substrate (LED substrate) 60 as shown in FIG. In FIG. 17, the board (LED board) 60 and the board (power supply board) 60 are electrically connected using the board-to-wire type connector 10. Specifically, the lead wire 30 and the substrate (LED substrate) 60 are electrically connected by mounting the housing 20 fixed on one side of the lead wire 30 to the contact 50 mounted on the substrate (LED substrate) 60. Connected. The lead wire 30 and the substrate (power supply substrate) 60 are electrically connected by soldering the exposed core portion 32 on the other side of the lead wire 30 to the substrate (power supply substrate) 60 with the solder 66. . Thus, the substrate (LED substrate) 60 and the substrate (power supply substrate) 60 are electrically connected via the board-to-wire type connector 10, and the LED 61 can be turned on. Note that the connector 10 of the board-to-wire type connector 10 may be attached to the substrate (power supply substrate) 60 and the other side of the lead wire 30 may be soldered to the substrate (LED substrate) 60.

In addition, even in a configuration in which a board (power supply board) 60 is arranged vertically as shown in FIG. 17, the board-to-board type connector 10 can be used, and as shown in FIG. A board-to-wire type connector 10 can also be used in a horizontally arranged configuration.

16 and 17, since the low-profile connector is used as the board-to-wire type connector 10 and the board-to-board type connector 10, the connector 10 does not block light emission of the LED 61. Can be attached to the substrate 60.

As described above, according to the present embodiment, by inserting the contact portion 53 of the contact 50 into the opening 24 of the plug housing (housing) 20 and inserting the lead wire 30 from the opening portion of the contact portion 53, The contact 50 is fitted into the plug housing 20 with the lead wire 30 in contact with the contact portion 53. That is, the lead wire 30 is inserted into the contact 50 by moving the lead wire 30 in a direction (Z direction) intersecting the axial direction (X direction). Therefore, the lead wire 30 can be prevented from bending when the lead wire 30 is inserted into the contact 50, and the lead wire 30 can be attached to the contact 50 more easily.

In this embodiment, the lead wire 30 is housed and fixed in the plug housing 20 without the contact 50 interposed therebetween. The plug housing 20 holds the core portion 32 (lead wire 30) so that the core portion 32 (lead wire 30) accommodated and fixed is exposed from the opening 24. That is, the core portion 32 of the lead wire 30 is directly attached to the contact portion 53 of the contact 50. Therefore, the lead wire 30 and the contact 50 can be attached and detached, and the core portion 32 of the lead wire 30 can be easily detached from the contact portion 53 of the contact 50, and the housing 40 with the lead wire and the contact 50 can be fitted together. It can be easily released.

Further, according to the present embodiment, the core portion 32 (lead wire 30) includes the crushing portion 32b formed by crushing the distal end portion 32a, and the plug housing 20 includes the core portion 32 (lead wire 30). The locking part 20b which locks the crushing part 32b is provided. With this configuration, the lead wire 30 can be fixed to the plug housing 20 by a simple method of crushing the tip 32a of the core portion 32 (lead wire 30).

Further, according to the present embodiment, the plug housing 20 is formed with the mounting portion 26 on which the core portion 32 (lead wire 30) is mounted, and the mounting surface 26a of the mounting portion 26 is the core portion. It has a shape corresponding to the surface shape of 32 (lead wire 30). Therefore, the core portion 32 (lead wire 30) can be stably placed on the placement portion 26.

Further, according to the present embodiment, the plug housing 20 is formed with the through hole 22b in which the front end portion 32a (lead wire 30) of the core portion 32 is exposed on the wall surface surrounding the locking portion 20b. Therefore, after inserting the front end portion 32a (lead wire 30) of the core portion 32 into the locking portion 20b of the plug housing 20, the front end portion 32a of the core portion 32 (lead wire 30) can be crushed and processed more. The lead wire 30 can be easily fixed to the plug housing 20.

Furthermore, in this embodiment, it is each provided in the Z direction both sides (wall surface which mutually opposes) of the wall surface surrounding the latching | locking part 20b, and the latching | locking part 20b is penetrated in the Z direction. Therefore, a crushing jig (not shown) can be inserted from both sides in the Z direction after the leading end portion 32a (lead wire 30) of the core portion 32 is inserted into the locking portion 20b of the plug housing 20. The crushing of the tip 32a of the core 32 (lead wire 30) can be performed more easily.

Further, according to the present embodiment, the lead wire 30 includes the core portion 32 made of a single wire. Therefore, it is cheaper than the case where a stranded wire is used as the core portion 32 of the lead wire 30 and is suitable for laying over a long distance (for example, 10 m or more), and can perform stable communication without being affected by noise. There is an advantage.

(Second Embodiment)
The connector 10A according to the present embodiment has substantially the same configuration as that of the first embodiment, and includes a contact 50A connected to the substrate 60 and a plug housing (housing) 20 into which the contact 50A is fitted. I have. Also in this connector 10A, the contact 50A mounted on the substrate 60 is fitted into the plug housing (housing) 20 in which the lead wire 30 is accommodated and fixed, and the lead wire 30 and the contact 50A are brought into contact with each other. Are electrically connected to each other.

Also in this embodiment, the lead wire 30 is accommodated and fixed in the plug housing 20 without the contact 50A. The plug housing 20 holds the core portion 32 (lead wire 30) so that the core portion 32 (lead wire 30) accommodated and fixed is exposed from the opening 24.

Here, the connector 10A of this embodiment is mainly different from the connector 10 of the first embodiment in that the lock piece 54a is bent so that the tip 54b bites into the wall surface of the plug housing 20.

Specifically, as shown in FIGS. 18 to 21, by bending the tip 54b of the lock piece 54a inward in the Y direction, the side wall 25d of the end island 25b, which is the wall of the plug housing 20, is formed. The front end 54b of the lock piece 54a bites in. That is, the inner corner portion 54c of the tip 54b presses the side wall surface 25d of the island portion 25b on the end side. At this time, it is preferable to bend so that the angle formed by the bottom surface 54d of the tip 54b and the side wall surface 25d is approximately 45 degrees. In this way, the inner corner portion 54c of the tip 54b presses the side wall surface 25d substantially perpendicularly (the component force in the surface direction of the side wall surface 25d is reduced), the locking force by the lock portion 54 is increased, and the lead wire is attached. The fitting between the housing 40 and the contact 50 can be prevented from being easily removed.

Also according to this embodiment described above, the same operations and effects as those of the first embodiment can be obtained.

Further, according to the present embodiment, the lock piece 54 a is bent so that the tip 54 b bites into the wall surface of the plug housing 20. Therefore, the locking force by the lock portion 54 can be further increased, and the fitting between the lead wire housing 40 and the contact 50 can be prevented from being easily removed.

Further, the connector 10A according to the present embodiment can be applied to the usage examples shown in FIGS.

(Third embodiment)
The connector 10B according to the present embodiment has substantially the same configuration as that of the first and second embodiments, and includes a contact 50B connected to the substrate 60 and a plug housing (housing) 20 into which the contact 50B is fitted. And. Also in this connector 10B, the contact 50B mounted on the substrate 60 is fitted into a plug housing (housing) 20 that accommodates and fixes the lead wire 30, and the lead wire 30 and the contact 50B are brought into contact with each other, whereby the lead wire 30 and the substrate 60 are contacted. Are electrically connected to each other.

Here, the main difference between the connector 10B of the present embodiment and the

connectors

10 and 10A of the first and second embodiments is that the lock portion 54A (lock piece 54a) of the contact 50B is replaced with the core portion 32A of the lead wire 30. It is in the point which was made to lock in.

Specifically, as shown in FIGS. 22 and 24, even in the present embodiment, the contact 50B is formed of a single plate-shaped metal plate that is bent, and includes a bottom wall portion 51 and a substrate connection portion. 52, a contact portion 53, and a lock portion 54A. In the present embodiment, the lock portion 54A is formed in substantially the same shape as the contact portion 53, the lock portion 54A is provided on the inner side in the Y direction than the first and second embodiments, and the lock piece 54a of the lock portion 54A is provided. Is arranged so as to substantially overlap the inner piece 53b of the contact portion 53 in the X direction.

Therefore, when the contact 50B is fitted into the lead wire housing 40A, the pinching pieces 53c provided on the inner piece 53b of the contact portion 53 pinch the core portion 32A of the lead wire 30 from both sides. As shown in FIG. 24B, in the present embodiment, the core portion 32A of the lead wire 30 is sandwiched from both sides even in the lock piece 54a of the lock portion 54A, and the lead wire housing 40A and the contact 50B It is possible to suppress the disengagement of.

Thus, in this embodiment, since the lock portion 54A having the lock piece 54a for holding the core portion 32A (lead wire 30) is provided in the contact 50B, a pair of the plug housing 20 in the first and second embodiments is provided. The island 25b (see FIG. 5) can be abolished. Thereby, in this embodiment, the weight reduction of the plug housing 20 can be achieved. Further, in the configuration in which the lock piece 54a of the lock portion 54 is engaged with the side wall surface 25d of the island portion 25b as in the first and second embodiments, the lock piece 54a is damaged such as cracks, and the housing with lead wires There is a possibility that the fitting force between the contact 40 and the contact 50B may be impaired. In this respect, in the present embodiment, the lock piece 54a is locked to the core portion 32A (lead wire 30), so that the strength of the contact 50B can be secured, and the lead wire housing 40A and the contact 50B are repeatedly attached and detached. Even if it happens, the breakage of the lock piece 54a can be suppressed.

Further, in the present embodiment, the core portion 32A of the lead wire 30 is formed of a stranded wire, and this point is also different from the first and second embodiments.

Specifically, as shown in FIG. 23 (a), in this embodiment, a cross-type wire in which seven thin copper wires (φ0.2) are spirally wound is used. The lead wire 30 is formed by covering the core portion 32 </ b> A made of a wire with an insulating covering portion 31. The lead wire 30 is inserted into the insertion hole 30a in a state in which the core portion 32A is exposed by peeling off the coating portion 31 on the distal end side. At this time, in this embodiment, since the cross-type stranded wire is used as described above, the core portion 32A formed of the stranded wire is inserted into the insertion hole 20a (insertion recess) of the plug housing 20 as shown in FIG. 20c, the through hole 25c, and the locking portion 20b) can be easily inserted.

Also according to this embodiment described above, the same operations and effects as those of the first and second embodiments can be obtained.

Further, according to the present embodiment, the contact 50B includes the lock portion 54A having the lock piece 54a that holds the lead wire 30 therebetween. Therefore, the weight of the plug housing 20 can be reduced, and even if the strength of the contact 50B is ensured and the lead wire housing 40A and the contact 50B are repeatedly attached and detached, damage to the lock piece 54a can be suppressed. . Therefore, the reliability of the lock portion 54A can be further increased, and the fitting between the lead wire housing 40A and the contact 50B can be prevented from being easily removed.

Furthermore, according to the present embodiment, the lead wire 30 includes the core portion 32A made of a stranded wire. Therefore, the lead wire 30 is more flexible than the case where a single wire is used as the core portion 32A of the lead wire 30, and there is an advantage that the wiring can be easily performed.

It should be noted that the connector 10B according to the present embodiment can also be applied to the usage examples shown in FIGS.

(Fourth embodiment)
The connector 10C according to the present embodiment has substantially the same configuration as that of the first to third embodiments, and includes a contact 50 connected to the substrate 60 and a plug housing (housing) 20 into which the contact 50 is fitted. And. Also in this connector 10C, the contact 50 mounted on the substrate 60 is fitted into the plug housing (housing) 20 in which the lead wire 30 is accommodated and fixed, and the lead wire 30 and the contact 50 are brought into contact with each other. Are electrically connected to each other.

Here, the connector 10C of the present embodiment is mainly different from the connector 10B of the third embodiment in that a straight type is used as the core portion 32B made of a stranded wire of the lead wire 30.

Specifically, as shown in FIG. 25 (a), in the present embodiment, seven thin copper wires (φ0.2) are used in a straight line. The lead wire 30 is formed by covering the core portion 32 </ b> B with the insulating covering portion 31. Then, the lead wire 30 is inserted into the insertion hole 30a in a state in which the core portion 32B is exposed by peeling off the covering portion 31 on the distal end side. At this time, in the present embodiment, since the straight type stranded wire is used as described above, there is a possibility that the copper wire of each core portion 32B spreads and is difficult to be inserted through the insertion hole 20a. Therefore, in the present embodiment, it is preferable to pre-process the core portion 32B by, for example, soldering or the like at the stage where the covering portion 31 of the lead wire 30 is peeled to expose the core portion 32B. In this way, as shown in FIG. 25 (b), the core portion 32B made of a stranded wire can be easily inserted into the insertion hole 20a (insertion recess 20c, through hole 25c, locking portion 20b) of the plug housing 20. become able to.

In this embodiment, the contact 50 and the plug housing 20 of the first embodiment are used. However, the contact 50A of the second embodiment and the contact 50B and the plug housing 20 of the third embodiment are used. A connector may be configured.

Also according to the present embodiment described above, the same operations and effects as the first to third embodiments can be obtained.

Further, according to the present embodiment, the lead wire 30 includes the core portion 32B made of a stranded wire. Therefore, the lead wire 30 is more flexible than the case where a single wire is used as the core portion 32B of the lead wire 30, and there is an advantage that the wiring can be easily performed.

It should be noted that the connector 10C according to the present embodiment can also be applied to the usage examples shown in FIGS.

The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various modifications can be made.

For example, as in the modification shown in FIG. 26, the lead wire 30 may be configured by a coaxial cable 32C. FIG. 26 illustrates an example in which an inner conductor 33 (core portion) made of a stranded wire is covered with an insulator 34 and an outer conductor 35 formed outside the insulator 34 is covered with a covering portion 31. Such a coaxial cable 32C has the advantage that it is flexible and can easily handle the wiring, and can suppress leakage of electromagnetic waves to the outside.

In FIG. 26, the inner conductor 33 (core portion) is formed of a stranded wire, but the inner conductor 33 (core portion) may be formed of a single wire.

In each of the above embodiments, the lead wire is inserted into the locking portion of the housing and then the tip of the lead wire is crushed, but the lead wire is crushed after the lead wire is crushed. It is also possible to pass through the locking portion of the housing.

Also, the specifications (shape, size, layout, etc.) of the crushed portion, contacts, housing, and other details can be changed as appropriate.

According to the present invention, it is possible to obtain a connector that can more easily attach a lead wire to a contact, a housing with a lead wire used in the connector, a housing and a contact.

Claims

A connector for electrically connecting a lead wire and a board,
The connector is
A contact connected to the substrate;
The lead wire is housed and fixed without the contact, and the housing that fits the contact;
With
The housing is formed with an opening having at least one opening, and holds the lead wire accommodated and fixed in an exposed state from the opening,
The contact includes a contact portion that opens on the side facing the opening,
By inserting the contact portion into the opening and inserting the lead wire from the opening portion of the contact portion, the contact is fitted into the housing with the lead wire in contact with the contact portion. Features a connector.
The lead wire includes a crushing portion formed by crushing the tip portion,
The connector according to claim 1, wherein the housing includes a locking portion that locks a crushing portion of the lead wire.
The housing is provided with a mounting portion for mounting the lead wire, and a mounting surface of the mounting portion has a shape corresponding to a surface shape of the lead wire. Item 3. The connector according to item 1 or 2.
The connector according to any one of claims 1 to 3, wherein the housing has a through-hole through which the lead wire is exposed on a wall surface surrounding the locking portion.
5. The connector according to claim 4, wherein the through holes are respectively provided on opposing wall surfaces of the wall surface surrounding the locking portion.
The contact includes a lock portion having a lock piece locked to the wall surface of the housing,
The connector according to any one of claims 1 to 5, wherein the lock piece is bent so that a tip thereof bites into a wall surface of the housing.
The connector according to any one of claims 1 to 5, wherein the contact includes a lock portion having a lock piece for sandwiching the lead wire.
The connector according to any one of claims 1 to 7, wherein the lead wire includes a core portion made of a single wire.
The connector according to any one of claims 1 to 7, wherein the lead wire includes a core portion made of a stranded wire.
The connector according to any one of claims 1 to 9, wherein the lead wire is constituted by a coaxial cable.
11. A housing with a lead wire, which is used for the connector according to any one of claims 1 to 10, wherein the lead wire is housed and fixed.
A housing used for the connector according to any one of claims 1 to 10.
A contact used for the connector according to any one of claims 1 to 10.