CN112563811B

CN112563811B - Connector cover

Info

Publication number: CN112563811B
Application number: CN202010993208.3A
Authority: CN
Inventors: 关野哲也; 横山大悟
Original assignee: Yazaki Corp
Current assignee: Yazaki Corp
Priority date: 2019-09-26
Filing date: 2020-09-21
Publication date: 2022-11-04
Anticipated expiration: 2040-09-21
Also published as: JP2021051985A; JP7140733B2; CN112563811A

Abstract

A connector cover eliminates interference of a cut end (cut projection) of a remaining length portion of a binding tape with an external member. A part of the peripheral wall (12 a) of the lower cover (10) is provided with a wire fixing wall (15), and the lower side thereof is provided with a through hole (17). A head (51) of the binding tape is held by a head holding portion (18) at the upper edge of a peripheral wall (12 a) of a lower cover (10), and the front end of the tape (52) passes through a tape through hole (17) and then is locked to the head (51) via the outer periphery of a wire fixing wall. Thereby, the electric wire is bundled together with the electric wire fixing wall. The upper cover is provided with a groove part (28), and when the upper cover and the lower cover are combined, the head part (51) of the binding tape and the cutting projection part (55) of the tape projecting from the head part are accommodated in the groove part (28) in a state that the cutting projection part can be seen from the outside.

Description

Connector cover

Technical Field

The present invention relates to a connector cover which is attached to a rear portion of a connector housing and guides an electric wire drawn out rearward from the connector housing.

Background

As such a connector cover, patent document 1 discloses a structure in which a wire fixing wall is provided at a part of a peripheral wall of a wire passage through which wires are drawn out rearward, and the wires and the wire fixing wall are fastened and bundled together with a binding tape in a state in which the wires are collectively pressed against the wire fixing wall.

Documents of the prior art

Patent document

Patent document 1: japanese Kokai publication Sho 63-187282

However, when the remaining length of the binding tape is cut after binding, the cut end thereof is projected to the outside of the connector cover, and the cut end may interfere with an external component to damage the external component.

Disclosure of Invention

The present invention has been made in view of the above circumstances, and an object thereof is to provide a connector cover which eliminates interference with external components caused by a cut end (a cutting protrusion) of a remaining length portion of a binding tape.

In order to achieve the above object, the connector cover of the present invention has the following features (1) to (2).

(1) The connector cover is attached to a rear portion of a connector housing, and guides a plurality of wires drawn out rearward from the connector housing to the outside through a wire passage surrounded by a cylindrical peripheral wall, the connector cover comprising:

two cover members which are combined with each other to form the cylindrical peripheral wall in a closed state;

a wire fixing wall which is provided adjacent to one circumferential side edge of the circumferential wall of one of the two cover members and fixes the wire passing through the wire passage;

a through hole provided in the peripheral wall of the one cover member at a position adjacent to the wire fixing wall;

a binding band having a head portion at a base end of the band, the head portion being configured to engage with a front end of the band wound in a loop shape by inserting the front end of the band into the band through hole, and then engaging with the head portion via an outer periphery of the wire fixing wall, thereby fastening the electric wire fixed to the wire fixing wall together with the wire fixing wall to bind the electric wire;

a head holding portion provided on one circumferential side edge of the circumferential wall of the one cover member for holding a head of the binding tape;

and a groove portion provided in the other of the two cover members, for accommodating the head portion of the binding tape and the cutting protrusion portion protruding from the head portion and having a tape remaining length portion cut off when the two cover members are combined, in a state in which the cutting protrusion portion is visible from the outside.

(2) The connector cover according to the above (1), wherein the one cover member is a lower cover, and the other cover member is an upper cover which closes the electric wire passage by covering an upper side of the lower cover,

the lower cover is provided with a peripheral wall having a U-shaped cross section for forming most of the cross section of the electric wire passage,

the head holding part is arranged on one side edge in the circumferential direction of the peripheral wall with the U-shaped section, namely the upper edge part on one side,

the upper shield with the cover is equipped with down: a locking part for combining the upper cover and the lower cover by mutual combination and engagement, and an engagement part for fixing to the connector housing.

According to the connector cover having the structure of the above (1), the cutting projection of the remaining length of the bundled strap can be accommodated in the groove portion when the mating cover member is assembled, and therefore, the problem of interference with the external member due to the cutting projection can be solved. In addition, since the cutting protrusion portion housed in the groove portion is visible from the outside, whether or not cutting is appropriate can be easily confirmed after assembly.

According to the connector cover having the structure of the above (2), the electric wires can be bundled while being collectively pressed into the electric wire fixing wall in a state where the electric wires pass through the inside of the peripheral wall of the lower cover having the U-shaped cross section. That is, the problem of the wire falling off does not occur inside the peripheral wall having the U-shaped cross section, and the wire can be easily bundled, thereby facilitating the work. Further, at the time of bundling, the leading end side of the strap can be locked to the head portion via the outer periphery of the wire fixing wall through the strap through hole in a state where the head portion of the bundling strap is held at the upper edge portion (head portion holding portion) of the peripheral wall having the U-shaped cross section, so that the remaining length portion of the strap can be easily cut from the upper side, and good workability can be ensured. In addition, the cutting protrusion of the remaining length of the binding tape can be accommodated in the groove portion of the upper cover only by covering the upper cover with the lower cover after the binding, and therefore, interference with external components can be reliably prevented.

According to the connector cover of the present invention, the cut protruding portion of the remaining length of the bundled tape can be accommodated in the groove portion when the mating cover member is assembled. Therefore, the problem of interference with external components due to the cut protrusion can be eliminated. In addition, since the cutting protrusion portion housed in the groove portion is visible from the outside, whether or not the cutting is appropriate can be easily confirmed after the assembly.

The present invention has been briefly described above. Further, the details of the present invention will be made more apparent by reading the modes for carrying out the invention described below (hereinafter referred to as "embodiments") with reference to the drawings.

Drawings

Fig. 1 is an explanatory view of a connector cover according to an embodiment of the present invention, in which fig. 1 (a) is an external perspective view showing a state of being attached to a connector housing, fig. 1 (B) is an a-direction view shown in fig. 1 (a), and fig. 1 (c) is a B-direction sectional view shown in fig. 1 (a).

Fig. 2 is an explanatory view of a connector cover according to an embodiment of the present invention, wherein fig. 2 (a) is an external perspective view showing a state before an upper cover is assembled to a lower cover, and fig. 2 (B) is a B-B cross-sectional view of fig. 2 (a) and is a cross-sectional view showing a state where a remaining length of a strap is cut by a strap cutter after the strap is bound by a binding strap; fig. 2 (c) is a sectional view showing a state in which the cutting protrusion protrudes upward.

Fig. 3 is an explanatory view of a connector housing according to an embodiment of the present invention, wherein fig. 3 (a) is an external perspective view showing a state in which an upper housing is assembled to a lower housing, and fig. 3 (B) is a B-B sectional view shown in fig. 3 (a).

Description of the reference numerals

1: connector housing

2: connector cover

10: lower cover (cover component of one side)

12A: electric wire path

12a: peripheral wall with U-shaped section

13: engaging part

14: locking part

15: wire fixing wall

17: with through holes

18: head holding part

20: upper cover (the other cover component)

23: engaging part

24: locking part

28: trough part

50: strapping tape

51: head part

52: belt

55: cutting off the protruding part

W: electric wire

Detailed Description

The following describes a specific embodiment of the present invention with reference to the drawings.

Fig. 1 to 3 are explanatory views of a connector cover according to an embodiment of the present invention. Fig. 1 (a) is an external perspective view showing a state of being mounted on a connector housing, fig. 1 (B) is a view along direction a shown in fig. 1 (a), and fig. 1 (c) is a cross-sectional view along direction B-B shown in fig. 1 (a). Fig. 2 (a) is an external perspective view showing a state before the upper cover is assembled to the lower cover, fig. 2 (B) is a sectional view of the tape cutter for cutting the remaining length of the tape after the binding tape is bound with the tape, as viewed from the direction B-B shown in fig. 2 (a), and fig. 2 (c) is a sectional view showing a state where the cutting protrusion protrudes upward. Fig. 3 (a) is an external perspective view showing a state in which the upper cover is assembled to the lower cover, and fig. 3 (B) is a B-B sectional view shown in fig. 3 (a).

As shown in fig. 1 to 3, the connector cover 2 of the present embodiment is detachably attached to the rear portion of the connector housing 1, and a plurality of wires W drawn out rearward from the connector housing 1 are guided to the outside through a wire passage 12A surrounded by a cylindrical peripheral wall.

A plurality of connector terminals are housed in the connector housing 1, and electric wires W connected to the terminals are led out from the rear of the connector housing 1 in a dispersed manner. The connector cover 2 serves to collectively bundle the plurality of wires W that are thus dispersed and drawn out from the connector housing 1 and then lead the bundled wires W out of the connector housing 1.

The connector cover 2 has: a lower cover 10 constituting a closed cylindrical peripheral wall by being vertically combined with each other, an upper cover 20 covering the lower cover 10 to close the wire passage 12A, and a binding tape 50 attached to the lower cover 10.

The lower cover 10 has a narrow portion 11 formed in a shape gradually narrowing in cross section from the open front end toward the rear end interior. The narrowed portion 11 is attached to the connector housing 1 by engaging the engagement portion 13 at the front end with the connector housing 1, and bundles and guides the wires W discretely drawn from the rear end of the connector housing 1 while bending the wires W rearward. A U-shaped tube portion 12 having a substantially constant cross-sectional shape is integrally connected to the rear side of the narrow portion 11. The U-shaped tube portion 12 has a U-shaped peripheral wall 12A forming most of the cross section of the wire passage 12A.

A wire fixing wall 15 is provided below one side edge in the circumferential direction, i.e., a one-side upper edge portion of the circumferential wall 12A of the U-shaped cylindrical portion 12 having the U-shaped cross section, and is adjacent to the upper edge portion to collect and fix the wires W passing through the wire passage 12A. The wire fixing wall 15 is formed in a recessed wall shape for easily collecting and fixing the wires W according to a change in shape from the upper edge portion to the lower end portion of the peripheral wall 12a. In addition, a tape through hole 17 is provided in the peripheral wall 12a at a position opposite to the upper edge (i.e., at the lower end side) at a position adjacent to the wire fixing wall 15. The tape through hole 17 is a hole for passing the tip end side of the tape 52 of the binding tape 50 from the inside to the outside of the peripheral wall 12a.

Further, a tape positioning groove 16 is provided in the circumferential direction on the outer peripheral surface of the peripheral wall 12a of the U-shaped tube portion 12 for positioning the tape 52 passing through the tape through hole 17 in the axial direction (extending direction of the electric wire W) on the outer surface of the peripheral wall 12a.

The binding band 50 is formed of an integrally molded resin product, and includes: a flexible band plate-like band 52, and a head 51. The band plate-like band 52 has a saw-toothed engagement tooth row (not shown) on one surface. The head 51 is integrally provided at the base end of the band 52, and has an insertion hole (not shown) into which the leading end side of the band 52 wound in a ring shape can be inserted, and also has an engagement claw (not shown) which prevents the movement in the return direction of the band 52 by engaging with any tooth of the engagement tooth row of the band 52 inserted into the insertion hole inside the insertion hole. When the binding band 50 is used, the tip end side of the band 52 is inserted into the insertion hole of the head 51. In this way, any tooth of the engagement tooth row is engaged with the engagement claw, and the ring fixing band 52 having an appropriate size can be fixed.

A head holding portion 18 for holding a head 51 of the binding band 50 is provided at one side edge in the circumferential direction, i.e., at one side upper edge portion of a circumferential wall 12a of the U-shaped cross section of the U-shaped tube portion 12. In a state where the head 51 is held by the head holding portion 18 of the lower cover 10, the binding band 50 passes the tip side of the downward-facing band 52 through the band through hole 17 across the bundle of the electric wires W. Then, the tip end side of the band 52 is locked to the head portion 51 via the outer periphery of the wire fixing wall 15, whereby the wire W fixed to the wire fixing wall 15 can be fastened together with the wire fixing wall 15 to bind the wire W.

The peripheral wall 22 of the upper cover 20 has a size covering the upper surface opening of the lower cover 10, and is formed in a sectional shape slightly convexly curved upward. Locking portions 24 are provided at both ends in the circumferential direction of the peripheral wall 22 of the upper cover 20, and when the upper cover 20 is combined with the lower cover 10, the locking portions 24 engage with the locking portions 14 on the lower cover 10 side, thereby coupling the upper cover 20 and the lower cover 10. Further, an engagement portion 23 for engaging with the connector housing 1 is provided at the front end of the upper cover 20.

In addition, a groove 28 is provided in a side edge portion of the upper cover 20 at a position facing the head holding portion 18 of the lower cover 10 when the upper cover 20 and the lower cover 10 are combined, and the groove 28 accommodates a head portion 51 of a binding tape 50 for binding the electric wire W on the lower cover 10 side and a cutting protrusion 55 which protrudes from the head portion 51 and cuts an excess length portion of the tape in a state where the cutting protrusion 55 is visible from the outside. The groove 28 is secured between the pair of

ribs

26, 27.

The operation will be described next.

When using the connector cover 2, first, as shown in fig. 2, the lower cover 10 is attached to the rear portion of the connector housing 1, and a plurality of wires are accommodated in the wire passage 12A of the U-shaped cylindrical portion of the lower cover 10. Then, the head 51 of the binding band 50 is held by the head holding portion 18 of the lower cover 10, and in this state, the leading end side of the downward facing band 52 is passed over the wire harness of the electric wire W and passed through the band through hole 17. Then, the tip end side of the band 52 is locked to the head 51 via the outer periphery of the wire fixing wall 15. This allows the electric wires W fixed to the electric wire fixing wall 15 to be fastened together with the electric wire fixing wall 15, thereby bundling the electric wires W.

After the strapping, the remaining length of the strap 52 is cut with a strap cutter. After cutting, the cutting end protrudes upward from the head 51 (cutting protrusion 55).

Next, as shown in fig. 3, the upper cover 20 and the lower cover 10 are assembled. That is, the upper cover 20 is positioned and covered on the lower cover 10, the engaging portion 23 is engaged with the connector housing 1, and the locking portion 24 is locked with the locking portion 14 on the lower cover 10 side.

Thus, as shown in fig. 1, the cut protruding portion 55 of the tape 52 of the binding tape 50 on the lower cover 10 side is housed in the groove portion 28 of the upper cover 20. Further, since the groove portion 28 is opened outward, the cut protrusion 55 of the tape 52 is visible from the outside.

As described above, according to the connector cover 2 of the present embodiment, when the upper cover 20 is assembled, the cut-off projections 55 of the remaining length of the binding band 50 on the bundled lower cover 10 side can be housed in the groove portions 28, and therefore, the problem of interference with external components due to the cut-off projections 55 can be solved. In addition, since the cutting protrusion 55 housed in the groove 28 is visible from the outside, whether or not the cutting is appropriate can be easily checked after the assembly.

Further, according to the connector cover 2 of this embodiment, the wires W can be bundled while being collectively pressed into the wire fixing wall 15 in a state where the wires W are passed through the inside of the peripheral wall 12a having the U-shaped cross section of the lower cover 10. That is, the wires W are not separated from each other inside the peripheral wall 12a having a U-shaped cross section, and the wires W can be easily bundled, thereby facilitating the work.

Further, at the time of binding, in a state where the head portion 51 of the binding band 50 is held at the upper edge portion (head holding portion 18) of the peripheral wall 12a having the U-shaped cross section, the leading end side of the band 52 is locked to the head portion 51 through the band through hole 17 via the outer periphery of the electric wire fixing wall 15, so that the remaining length portion of the band 52 can be easily cut from the upper side, and good workability can be ensured. In addition, the cutting protrusion 55 of the remaining length of the binding band 50 can be housed and hidden in the groove portion of the upper cover 20 only by covering the upper cover 20 on the lower cover 10 after the binding, and therefore, interference with external components can be reliably prevented.

Here, the features of the connector cover according to the above-described embodiment of the present invention are briefly described in the following (1) to (2).

[1] A connector cover (2) is mounted on the rear part of a connector housing (1) and leads a plurality of wires (W) led out from the connector housing (1) to the outside through a wire passage (12A) surrounded by a cylindrical peripheral wall, wherein the connector cover (2) comprises:

two cover members (10, 20) which are combined with each other to form the cylindrical peripheral wall in a closed state;

a wire fixing wall (15) which is provided adjacent to one circumferential edge of the circumferential wall of one cover member (10) of the two cover members (10, 20) and fixes the wire passing through the wire passage (12A);

a through hole (17) provided in the peripheral wall (12 a) of the one cover member at a position adjacent to the wire fixing wall (15);

a binding band (50) which is provided with a head (51) at the base end of the band (52) and which locks the band (52) by inserting the tip end of the band (52) wound in a loop, wherein the electric wire (W) fixed to the electric wire fixing wall (15) is fastened together with the electric wire fixing wall (15) by passing the tip end of the band (52) through the band-passing hole (17) and then locking the head (51) via the outer periphery of the electric wire fixing wall (15), thereby binding the electric wire (W);

a head holding portion (18) provided on one circumferential side edge of the circumferential wall (12 a) of the one cover member (10) for holding a head (51) of the binding tape (50);

and a groove (28) provided in the other cover member (20) of the two cover members (10, 20), and configured to accommodate a head portion (51) of the binding tape (50) and a cutting protrusion (55) protruding from the head portion (51) and having a tape remaining length cut off, in a state in which the cutting protrusion (55) is visible from the outside when the two cover members (10, 20) are combined.

[2] In the connector cover (2) according to the above [1], the one cover member is a lower cover (10), and the other cover member is an upper cover (20) which closes the wire passage (12A) by covering an upper side of the lower cover (10),

the lower cover (10) is provided with a peripheral wall (12A) having a U-shaped cross section for forming most of the cross section of the wire passage (12A),

the head holding part (18) is arranged on one side edge in the circumferential direction of the peripheral wall (12 a) with the U-shaped section, namely the upper edge part on one side,

the upper cover (20) and the lower cover (10) are provided with: locking parts (14, 24) for connecting the upper cover (20) and the lower cover (10) by engagement when the upper cover and the lower cover are combined with each other, and engagement parts (13, 23) for fixing to the connector housing (1).

Claims

1. A connector cover which is attached to a rear portion of a connector housing and guides a plurality of wires drawn out rearward from the connector housing to the outside through a wire passage surrounded by a cylindrical peripheral wall, the connector cover comprising:

a through hole provided in a peripheral wall of the one cover member at a position adjacent to the wire fixing wall;

a binding band having a head portion at a base end of the band, the head portion being configured to engage the band by inserting a distal end side of the band wound in a loop shape, the head portion being configured to engage the distal end side of the band with the outer periphery of the wire fixing wall after the distal end side of the band passes through the band through hole, and thereby the electric wire fixed to the wire fixing wall is fastened together with the wire fixing wall and the electric wire is bound;

a head holding portion provided on one circumferential side edge of the circumferential wall of the one cover member for holding the head of the binding tape;

a groove portion provided in the other of the two cover members, for accommodating a head portion of the binding tape and a cutting protrusion portion protruding from the head portion and cutting an excess length portion of the tape in a state in which the cutting protrusion portion is visible from outside when the two cover members are combined,

the cutting projection projects from the head portion in the combined direction of the two cover members,

the groove portion penetrates in the combination direction.

2. The connector shield as recited in claim 1,

the one cover member is a lower cover, the other cover member is an upper cover which closes the electric wire passage by covering the upper side of the lower cover,

the lower cover is provided with a peripheral wall having a U-shaped cross section for forming most of the cross section of the wire passage,

the upper cover and the lower cover are provided with: a locking part for combining the upper cover and the lower cover by mutual combination and engagement, and an engagement part for fixing to the connector housing.