WO2020121925A1

WO2020121925A1 - Harness component

Info

Publication number: WO2020121925A1
Application number: PCT/JP2019/047533
Authority: WO
Inventors: 雄太井上
Original assignee: 住友電装株式会社
Priority date: 2018-12-14
Filing date: 2019-12-05
Publication date: 2020-06-18
Also published as: JP2020095898A

Abstract

A harness component (1), provided with a plurality of male terminals (2), a housing (3), a plurality of female terminals (4), and a holder (5). The housing (3) has a plurality of through holes (31) and a plurality of terminal housing holes (32). The male terminals (2) penetrate through the through holes (31). The terminal housing holes (32) communicate to the through holes (31), and are provided with an opening part (321) on the opposite side from the through hole (31). The plurality of female terminals (4) are disposed so as to be respectively inserted into the terminal housing holes (32) from the opening parts (321). The holder (5) is in contact with the end part of the female terminals (4) on the opposite side from the side at which the male terminals (2) are disposed. The holder (5) is fitted to the housing (3).

Description

Harness parts

The present invention relates to harness parts.

The harness component described in Patent Document 1 includes a male connector mounted on one side in the thickness direction of the circuit board and a female connector fitted to the male connector.

The male connector includes a plurality of male terminals that are electrically connected to the through holes of the circuit board, and a male housing made of a resin or the like having electrical insulation that houses the plurality of male terminals. The male housing includes a bottomed tubular connector fitting portion that opens on the side opposite to the circuit board side. The female connector is fitted into the connector fitting portion from its open side. Further, the male terminal is press-fitted into the bottom wall of the connector fitting portion from the open side, and the electrical contact portion which is a part of the male terminal projects inside the connector fitting portion.

By fitting the female connector inside the connector fitting portion of the male connector, the electrical contact portion and the female terminal of the female connector are electrically connected.

JP-A-2002-216870

The female connector has a plurality of female terminals electrically connected to each of the plurality of male terminals and a plurality of insertion holes for inserting and accommodating the plurality of female terminals, respectively, and has electrical insulation properties. One with a female housing is conceivable. However, the female housing needs to be formed with a plurality of insertion holes for accommodating each of the plurality of female terminals, and thus tends to increase in size.

The present invention has been made in view of such problems, and an object thereof is to provide a harness component that can be downsized.

One aspect of the present invention includes a plurality of male terminals,
A housing having a plurality of through-holes through which the male terminals penetrate, and a plurality of terminal-accommodating holes that are in communication with the through-holes and that have an opening on the side opposite to the through-holes,
A plurality of female terminals that are inserted and arranged in the terminal receiving holes through the openings, and that are electrically connected to the male terminals,
The harness component includes: a holder that is in contact with an end of each of the female terminals on the side opposite to the side on which the male terminal is arranged and that is fitted into the housing.

In the harness component of the above aspect, female terminals are inserted and arranged from the respective openings into the respective terminal accommodating holes. The harness component includes a holder. The holder contacts the end of each female terminal on the side opposite to the side on which the male terminal is arranged, and is fitted into the housing. Therefore, the female terminal inserted into the terminal receiving hole is pressed by the holder fitted in the housing, and the female terminal is prevented from falling out of the terminal receiving hole. Therefore, it is not necessary to form the holder into a shape such as a housing member having a plurality of insertion holes into which the plurality of female terminals are respectively inserted, and it is easy to realize the downsizing of the holder and the downsizing of the entire harness component.

Also, the male terminal and the female terminal are connected in each terminal accommodating hole. Therefore, the male terminal and the female terminal can be easily positioned with respect to the housing by disposing the male terminal in the terminal accommodating hole through the through hole and inserting the female terminal in the terminal accommodating hole through the opening. Further, the plurality of female terminals are inserted into the respective terminal accommodating holes of the housing one by one and are connected to the male terminals, so that rattling of the female terminals when assembling the female terminals to the housing is prevented. Therefore, it is easy to improve the productivity of harness parts.

As described above, according to the above aspect, it is possible to provide a harness component that can be downsized.

3 is a perspective view of the harness component according to the first embodiment. FIG. FIG. 3 is a plan view of the harness component according to the first embodiment. FIG. 3 is a sectional view taken along the line III-III of FIG. FIG. 3 is a rear view of the harness component according to the first embodiment. FIG. 3 is a plan view of the housing according to the first embodiment. FIG. 3 is a plan view of the holder according to the first embodiment. FIG. 3 is a front view of the holder according to the first embodiment. FIG. 3 is an enlarged front view of the vicinity of the protrusion of the holder according to the first embodiment. FIG. 4 is a cross-sectional view for explaining the function and effect of the harness component according to the first embodiment, showing how the male terminal is first assembled and then the female terminal is assembled to the housing. FIG. 4 is a cross-sectional view for explaining the function and effect of the harness component according to the first embodiment, showing how the female terminal is first assembled and then the male terminal is assembled to the housing. FIG. 7 is an enlarged front view of the vicinity of the protrusion of the holder according to the second embodiment.

(Embodiment 1)
An embodiment of the harness component will be described with reference to FIGS. 1 to 10.
As shown in FIGS. 1 to 3, the harness component 1 of this embodiment includes a plurality of male terminals 2, a housing 3, a plurality of female terminals 4, and a holder 5.

As shown in FIG. 5, the housing 3 has a plurality of through holes 31 and a plurality of terminal accommodating holes 32. As shown in FIG. 3, the male terminal 2 penetrates the through hole 31. The terminal accommodating hole 32 communicates with the through hole 31 and includes an opening 321 on the opposite side of the through hole 31.

The plurality of female terminals 4 are inserted and arranged in the terminal accommodating holes 32 through the openings 321 and are electrically connected to the male terminals 2.

As shown in FIG. 3, the holder 5 is in contact with the end of each female terminal 4 on the side opposite to the side on which the male terminal 2 is arranged. As shown in FIGS. 1 and 2, the holder 5 is fitted in the housing 3.
Hereinafter, this embodiment will be described in detail.

Hereafter, the formation direction (axial direction) of the terminal accommodating hole 32 is referred to as the X direction. In the X direction, the side of the terminal accommodating hole 32 where the opening 321 is formed is referred to as the X1 side, and the side of the terminal accommodating hole 32 where the through hole 31 is formed is referred to as the X2 side. Further, the X direction is a direction in which the housing 3 and the holder 5 are arranged, the side where the holder 5 is located with respect to the housing 3 is the X1 side, and the side where the housing 3 is located with respect to the holder 5 is the X2 side.

As shown in FIG. 3, in the harness component 1, the portions of the plurality of male terminals 2 protruding from the housing 3 are connected to the circuit board 11, and the plurality of electric wires 6 connected to the female terminals 4 are not shown in a control device or the like. By connecting to the electronic device, the circuit board 11 and the electronic device are electrically relayed.

The housing 3 is made of an electrically insulating resin. As shown in FIG. 1, the housing 3 is formed in a rectangular parallelepiped shape having a thickness in the Z direction orthogonal to the X direction. As shown in FIGS. 3 and 5, the housing 3 has four terminal accommodating holes 32 formed such that the surface on the X1 side is recessed toward the X2 side.

As shown in FIG. 5, the four terminal accommodating holes 32 are arranged at equal intervals in the Y direction orthogonal to both the X direction and the Z direction. In the X direction, the terminal accommodating hole 32 is formed in almost the entire housing 3. As shown in FIG. 3, the terminal accommodating hole 32 has an opening 321 for opening the inner space thereof toward the X1 side at the X1 side end. Further, the through hole 31 is formed in the wall portion of the housing 3 arranged on the X2 side in the inner space of the terminal accommodating hole 32.

The male terminal 2 is press-fitted into the through hole 31 of the housing 3 from the X2 side, and the female terminal 4 is inserted into the terminal accommodating hole 32 from the opening 321 of the housing 3. That is, the assembling direction of the male terminal 2 to the housing 3 (X1 side) and the assembling direction of the female terminal 4 to the housing 3 (X2 side) are opposite directions.

As shown in FIGS. 2 and 3, the housing 3 projects between the female terminals 4 inserted into the terminal accommodating holes 32 toward the holder facing wall 51 side of the holder 5 which will be described later, and the housing 3 and the holder facing wall 51 in the X direction. It has opposite housing projections 33. As shown in FIGS. 2 and 5, when viewed from the Z direction, the housing projecting portion 33 projects toward the X1 side with respect to the periphery of the housing projecting portion 33 in the housing 3. As shown in FIG. 2, the end surface of the housing protrusion 33 on the X1 side is in contact with the surface of the holder facing wall 51 on the X2 side.

As shown in FIG. 5, the housing protrusion 33 is arranged at a position displaced from the opening 321 of the terminal accommodating hole 32 in the Y direction. The housing protrusions 33 are formed so as to be adjacent to both sides of each opening 321 in the Y direction.

As shown in FIG. 3, the housing protrusion 33 is longer than the terminal accommodating hole 32 in the Z direction, and both ends of the housing protrusion 33 protrude to both sides of the terminal accommodating hole 32 in the Z direction. This facilitates ensuring electrical insulation between the adjacent female terminals 4.

As shown in FIGS. 1, 2, and 5, a housing lock portion 34 is formed on the X1 side end portions of both surfaces of the housing 3 in the Y direction. The housing lock portion 34 projects toward the outside of the housing 3 in the Y direction. As shown in FIGS. 1 and 2, the housing lock portion 34 holds the holder 5 in engagement.

The holder 5 is made of electrically insulating resin. As shown in FIGS. 1 and 2, the holder 5 is entirely arranged outside the housing 3. That is, the holder 5 does not have a portion inserted into the terminal accommodating hole 32 of the housing 3, for example.

As shown in FIGS. 1, 2, 6 and 7, the holder 5 includes a holder facing wall 51 facing the housing 3 from the X1 side, and a holder 5 extending from both ends of the holder facing wall 51 in the Y direction to the housing 3 side. The holder lock portion 52 is provided and is engaged with the housing 3.

As shown in FIGS. 6 and 7, the holder facing wall 51 is formed in a plate shape that is long in the Y direction and has a thickness in the X direction. As shown in FIGS. 3 and 4, the holder facing wall 51 is provided with four insertion holes 511 into which the electric wires 6 are inserted. The insertion hole 511 is formed in a circular shape so as to penetrate the holder facing wall 51 in the X direction. The insertion hole 511 has an inner diameter slightly larger than the outer diameter of the electric wire 6.

As shown in FIGS. 2, 3, and 6, the holder facing wall 51 projects toward the X1 side end of each female terminal 4 and abuts the X1 side end of each female terminal 4. A plurality of protrusions 512 are formed. As shown in FIG. 7, the projection 512 is formed in a cylindrical shape so as to project from the entire circumference of the insertion hole 511 to the X2 side. An insertion hole 511 is formed inside the protrusion 512.

As shown in FIG. 8, the protrusion 512 is formed so as to overlap the X1 side end surface of the female terminal 4 in the X direction. In FIG. 8, the outline of the end surface of the female terminal 4 on the X1 side when viewed from the X direction is indicated by a broken line. The X2 side end surface of the protrusion 512 is in contact with the X1 side end surface of the female terminal 4 (specifically, the X1 side end surface of the second caulking portion 422 described later). As shown in FIGS. 2 and 3, the four protrusions 512 are arranged on the X1 side of the terminal accommodating hole 32. That is, the protrusion 512 is not inserted into the terminal accommodating hole 32.

As shown in FIGS. 1, 2, and 6, both ends in the Y direction of the holder facing wall 51 project outward in both Y directions from the end surface of the housing 3 on the X1 side, and the holder facing wall 51 extends from both ends in the X2 direction. A holder lock portion 52 is formed on the side.

As shown in FIGS. 1 and 2, the pair of holder lock parts 52 are arranged on both outsides of the housing 3 in the Y direction. The holder lock portion 52 is formed in a plate shape that is long in the X direction and has a thickness in the Y direction. The holder lock portion 52 is formed so as to be able to bend in the Y direction.

As shown in FIGS. 1, 2, and 6, the holder lock portion 52 has a holder engagement hole 521 formed so as to penetrate in the Y direction. As shown in FIGS. 1 and 2, the housing lock portion 34 is arranged inside the holder engagement hole 521 so that the holder engagement hole 521 and the housing lock portion 34 are engaged with each other.

When attaching the holder 5 to the housing 3, bring the holder 5 and the housing 3 closer to each other in the X direction. At this time, the pair of holder lock portions 52 of the holder 5 is elastically deformed outward in the Y direction. Then, the holder 5 is pushed into the housing 3 until the portion of the pair of holder lock portions 52 on the X2 side of the holder engagement hole 521 gets over the housing lock portion 34.

When a portion of the holder lock portion 52 on the X2 side of the holder engagement hole 521 passes over the housing lock portion 34, the pair of holder lock portions 52 are deformed and flexed toward the inside in the Y direction by the elastic restoring force. It is restored to its original shape before it was removed. As a result, the housing lock portion 34 is arranged inside the holder engagement hole 521, the holder engagement hole 521 and the housing lock portion 34 engage with each other, and the holder 5 is fixed to the housing 3.

After the holder engagement hole 521 is engaged with the housing lock portion 34, when the holder 5 is further pushed into the housing 3, the holder lock portion 52 contacts the housing protrusion 33. Thereby, the holder 5 is configured not to be pushed into the housing 3 too much. Therefore, it is possible to prevent the pair of holders 5 from unduly spreading to both outer sides in the Y direction due to the housing lock portion 34 entering the portion on the X1 side of the engagement hole in the holder lock portion 52 of the holder 5. it can.

As shown in FIGS. 1 and 2, at the end of the housing 3 on the X2 side, a housing groove 35 is formed in which the X2 side surface of the housing 3 is recessed to the X1 side. The housing groove portion 35 is formed between the adjacent male terminals 2 in the X direction. The housing groove portion 35 is formed from one end to the other end of the housing 3 in the Z direction, and both sides in the Z direction are open. The housing groove portion 35 can increase the creepage distance between the male terminals 2 adjacent in the X direction.

As shown in FIGS. 1 and 3, the male terminal 2 has a shape in which a pin-shaped (columnar) metal material is bent into an L-shape. That is, the male terminal 2 is formed straight in the X direction, and the end portion on the X1 side is inserted into the terminal accommodating hole 32 from the through hole 31, and the X2 side end of the first terminal portion 21. And a second terminal portion 22 connected to the circuit board 11 while being extended from the portion to one side in the Z direction.

The male terminal 2 has a convex polygonal shape or a circular shape at least in a cross section orthogonal to the longitudinal direction of the second terminal portion 22 connected to the circuit board 11. A convex polygon means a polygon with all interior angles less than 180°. In the present embodiment, the male terminal 2 has a substantially square cross-sectional shape orthogonal to the longitudinal direction of the male terminal 2.

As shown in FIG. 3, the second terminal portion 22 of the male terminal 2 is inserted into the through hole of the circuit board 11 in the Z direction and is joined to the through hole by soldering. As a result, the male terminal 2 and the circuit board 11 are electrically connected.

As shown in FIG. 3, the female terminal 4 includes a tubular portion 41 and a caulking portion 42. The tubular portion 41 is formed by forming a plate-shaped conductive member into a rectangular tubular shape. The tubular portion 41 is configured so that the male terminal 2 can be inserted into the tubular portion 41 from the end on the X2 side.

As shown in FIG. 3, the tubular portion 41 has a raised portion 411 that is raised toward the male terminal 2 side in the Z direction and is in contact with the male terminal 2, and is opposed to the raised portion 411 and opposite to the raised portion 411. An elastic contact piece 412 that elastically contacts the male terminal 2 from the side is formed.

The elastic contact piece 412 is configured to be elastically bendable in the Z direction. When the male terminal 2 is inserted inside the tubular portion 41, the elastic contact piece 412 is pushed by the male terminal 2 and bends to the side opposite to the raised portion 411 in the Z direction. As a result, the male terminal 2 is elastically sandwiched between the raised portion 411 and the elastic contact piece 412. Then, the male terminal 2 is configured to be slidable in the X direction with respect to the tubular portion 41 in a state of being elastically sandwiched between the raised portion 411 and the elastic contact piece 412. That is, the male terminal 2 is not fixed to the tubular portion 41.

As shown in FIG. 3, the caulking portion 42 crimps the end portion of the electric wire 6. The electric wire 6 includes a conductive portion 61 having conductivity, and a coating portion 62 that covers the conductive portion 61 and has electrical insulation. The end portion of the electric wire 6 is an exposed conductive portion 611 in which the conductive portion 61 is exposed from the covering portion 62. The crimp portion 42 includes a first crimp portion 421 that is crimped to the exposed conductive portion 611, and a second crimp portion 422 that is formed on the X1 side of the first crimp portion 421 and crimped to the end portion of the covering portion 62.

As shown in FIG. 3, the electric wire 6 is inserted into the insertion hole 511 of the holder 5 at a portion adjacent to the portion of the covering portion 62 crimped by the second crimping portion 422 on the X1 side.

Next, the function and effect of this embodiment will be described.
In the harness component 1 of the present embodiment, the female terminal 4 is inserted and arranged from each opening 321 into each terminal accommodating hole 32. The harness component 1 includes the holder 5. The holder 5 abuts on the end of each female terminal 4 opposite to the side on which the male terminal 2 is arranged, and is fitted into the housing 3. Therefore, the holder 5 fitted in the housing 3 holds down the female terminal 4 inserted into the terminal accommodating hole 32 and prevents the female terminal 4 from falling out of the terminal accommodating hole 32. Therefore, the holder 5 does not have to be shaped like a housing member having a plurality of insertion holes (such as the terminal accommodating holes 32) for inserting the plurality of female terminals 4, respectively, and the holder 5 can be made smaller. As a result, it is easy to reduce the size of the entire harness component 1.

Further, the male terminal 2 and the female terminal 4 are connected in each terminal accommodating hole 32. Therefore, by disposing the male terminal 2 in the terminal accommodating hole 32 from the through hole 31 and inserting the female terminal 4 in the terminal accommodating hole 32 from the opening 321, the male terminal 2 and the female terminal 4 with respect to the housing 3 are inserted. Is easy to position. Further, the plurality of female terminals 4 are inserted into the respective terminal accommodating holes 32 of the housing 3 one by one and are connected to the male terminals 2. Therefore, when the female terminals 4 are assembled to the housing 3, Rattling is prevented. Therefore, it is easy to improve the productivity of the harness component 1.

Also, the holder 5 is formed with an insertion hole 511 into which each electric wire 6 is inserted. Therefore, the electric wire 6 connected to the female terminal 4 arranged in the terminal receiving hole 32 of the housing 3 can be easily pulled out from the housing 3 and the holder 5.

Further, the holder 5 is formed with a plurality of protrusions 512 that protrude toward the end of each female terminal 4 on the side opposite to the side on which the male terminal 2 is arranged and that abut on the end of each female terminal 4. Has been done. Therefore, by adjusting the protruding length of the protruding portion 512 in the X direction, when the holder 5 is assembled to the housing 3, the protruding portion 512 can push the female terminal 4 to a predetermined position. Thereby, the female terminal 4 and the male terminal 2 can be reliably connected.

Further, the housing 3 has a housing protrusion 33 that protrudes toward the holder facing wall 51 side between the adjacent female terminals 4. Therefore, the creeping distance between the female terminals 4 and the electric wires 6 arranged in the terminal accommodating holes 32 adjacent to each other can be secured, and the electrical insulation between them can be secured.

Furthermore, the end of the housing protrusion 33 on the X1 side faces the holder facing wall 51 in the X direction. Therefore, when the holder 5 is fitted into the housing 3 and the holder 5 is pushed toward the X2 side of the housing 3 from a predetermined position, the housing protrusion 33 and the holder facing wall 51 interfere with each other, and Pushing of the holder 5 with respect to 3 is restricted. As a result, as described above, due to the housing lock portion 34 entering the portion of the holder lock portion 52 of the holder 5 on the X1 side of the engagement hole, the pair of holders 5 excessively spread to both outsides in the Y direction. It is possible to prevent it.

Further, the male terminal 2 is press-fitted into the through hole 31 of the housing 3 from the side opposite to the side where the opening 321 is formed in the terminal accommodating hole 32, and the female terminal 4 is inserted from the opening 321 of the housing 3 into the terminal. It is inserted into the accommodation hole 32. That is, the assembling direction of the male terminal 2 with respect to the housing 3 (X1 side) is opposite to the assembling direction of the female terminal 4 with respect to the housing 3 (X2 side). Therefore, in assembling the harness component 1, as shown in FIG. 9, it is possible to press fit the male terminal 2 into the through hole 31 and then assemble the female terminal 4 into the terminal accommodating hole 32 from the opening 321. As shown in FIG. 10, it is also possible to assemble the female terminal 4 into the terminal accommodating hole 32 from the opening 321 and then press fit the male terminal 2 into the through hole 31. Therefore, the degree of freedom in the assembly process of the harness component 1 can be improved. Further, since the male terminal 2 is fixed to the through hole 31 by press fitting, it is not necessary to separately provide a mechanism for fixing the male terminal 2 to the housing 3. Therefore, it is easy to improve the productivity of the harness component 1.

The second terminal portion 22 of the male terminal 2 to be soldered to the circuit board 11 has a convex polygonal shape or a circular shape in a cross section orthogonal to the longitudinal direction of the second terminal portion 22. Therefore, for example, it is possible to prevent the formation of voids in the solder as compared with the case where the second terminal portion 22 is formed into a tab-shaped terminal formed by bending a plate-shaped metal member so as to have a U-shaped cross section. .. That is, when the second terminal portion 22 is formed in a tab shape, air remains in the space surrounded by the second terminal portion 22 having a U-shaped cross section, and voids are likely to occur in the solder. On the other hand, by forming the second terminal portion 22 so that the cross section has a convex polygonal shape or a circular shape, a space surrounded by the second terminal portion 22 is not formed in the cross section of the second terminal portion 22 orthogonal to the X direction. It is possible to suppress the occurrence of voids in the solder.

As described above, according to this embodiment, it is possible to provide a harness component that can be downsized.

(Embodiment 2)
As shown in FIG. 11, the present embodiment is an embodiment in which the shape of the protrusion 512 of the holder 5 is changed from that of the first embodiment.

In the present embodiment, the protrusions 512 are formed at four locations around each insertion hole 511. The four protrusions 512 are arranged at equal intervals in the circumferential direction of the insertion hole 511. The projections 512 are in contact with at least the four corners of the end surface of the female terminal 4 on the X1 side.

Others are the same as in the first embodiment.
In addition, among the reference numerals used in the second and subsequent embodiments, the same reference numerals as those used in the already-explained embodiments represent the same components and the like as those in the already-explained embodiments, unless otherwise specified.

Also in this embodiment, the same operational effect as that of the first embodiment is provided.

The present invention is not limited to each of the above embodiments, and can be applied to various embodiments without departing from the scope of the invention. For example, the side of the male terminal opposite to the side connected to the female terminal is formed in a pin shape and connected to the through hole of the circuit board, but the configuration is not limited to this, and the shape may be such as crimping an electric wire. It may be formed. Further, the side of the female terminal opposite to the side connected to the male terminal is configured to crimp the electric wire, but the invention is not limited to this and may be formed in a pin shape, for example.

Claims

Multiple male terminals,
A housing having a plurality of through-holes through which the male terminals penetrate, and a plurality of terminal-accommodating holes that are in communication with the through-holes and that have an opening on the side opposite to the through-holes,
A plurality of female terminals that are inserted and arranged in the terminal receiving holes through the openings, and that are electrically connected to the male terminals,
A harness component, comprising: a holder that is in contact with an end of each of the female terminals on the side opposite to the side on which the male terminal is arranged and that is fitted into the housing.
The harness component according to claim 1, wherein an electric wire is connected to the female terminal, and an insertion hole for inserting the electric wire is formed in the holder.
The holder is formed with a plurality of protrusions that protrude toward the end of the female terminals opposite to the side on which the male terminals are arranged and that abut against the ends of the female terminals. The harness component according to claim 1 or 2, which is present.
The holder is provided with a holder facing wall facing the housing from a side of the terminal receiving hole where the opening is formed, and a holder extending from both ends of the holder facing wall toward the housing and engaged with the housing. A holder lock portion that is fitted together, and the housing has a housing protrusion portion that protrudes toward the holder facing wall side and that faces the holder facing wall, between the adjacent female terminals. The harness component according to any one of 1 to 3.
The male terminal is press-fitted into the through-hole of the housing from a side opposite to the side where the opening is formed in the terminal accommodating hole, and the female terminal is accommodated in the terminal accommodating through the opening of the housing. The harness component according to any one of claims 1 to 4, which is inserted in the hole.