WO2013088768A1

WO2013088768A1 - Connector

Info

Publication number: WO2013088768A1
Application number: PCT/JP2012/067962
Authority: WO
Inventors: 和亜希武田
Original assignee: 住友電装株式会社
Priority date: 2011-12-16
Filing date: 2012-07-13
Publication date: 2013-06-20
Also published as: JP2013125741A

Abstract

The present invention generates a large impact sound. This connector (1) is provided with: a first housing (10); a second housing (30) that can fit to the first housing (10); a locking arm (12) that is provided to the first housing (10), is elastically displaced in the process of fitting both housings (10, 30) together, and elastically recovers along with the normal fitting of both housings (10, 30); an oscillation section (20) that has resonance space (21) encircled by a wall section (side surface wall (22), upper surface wall (23), front surface wall (24), and bottom surface wall (25)) and that generates an impact sound by oscillating the side wall section (side surface wall (22), upper surface wall (23), front surface wall (24), and bottom surface wall (25)) by causing the collision of the elastically recovering locking arm (12); a high-rigidity section (26) configuring a portion of the wall section; and a low-rigidity section (27) configuring a portion of the wall section and having a lower rigidity than the high-rigidity section (26).

Description

connector

The present invention relates to a connector.

Patent Document 1 discloses a connector that generates a striking sound when two housings are properly fitted. In this connector, a lock arm is provided in the female housing, and an oscillating portion is provided in the hood portion of the male housing. The oscillation unit has a resonance space surrounded by a wall. In the fitting process of both housings, elastic energy is stored in the elastically displaced lock arms, and when both housings are properly fitted, the lock arms elastically return and collide with the oscillating part, and the wall part constituting the oscillating part vibrates The hitting sound generated by doing so is amplified in the resonance space.

JP 2005-158417 A

In the above connector, the wall portion constituting the resonance space has substantially the same thickness over the entire region, and has substantially the same rigidity over the entire region. Therefore, when a striking sound is generated, the elastic energy of the lock arm is dispersed throughout the wall portion, the amplitude of the wall portion is reduced, and the impact sound is reduced.

The present invention has been completed based on the above-described circumstances, and an object thereof is to generate a large impact sound.

As means for achieving the above object, the present invention provides:
A first housing;
A second housing engageable with the first housing;
A lock arm provided in the first housing, elastically displaced in a fitting process of the first housing and the second housing, and elastically restored when the first housing and the second housing are properly fitted; ,
An oscillating portion that has a resonance space surrounded by a plurality of walls, and causes the wall to vibrate by causing the lock arm to return elastically to generate an impact sound;
A highly rigid portion constituting a part of the plurality of wall portions;
The present invention is characterized in that a part of the plurality of wall portions is configured and a low-rigidity portion having lower rigidity than the high-rigidity portion is provided.

When the lock arm collides with the oscillating portion, the elastic energy stored in the lock arm is concentrated on the low-rigidity portion that is a part of the plurality of wall portions constituting the oscillating portion, and the low-rigidity portion vibrates with a large amplitude. . Therefore, a larger impact sound is generated as compared with the case where the elastic energy stored in the lock arm is dispersed throughout the plurality of wall portions.

The top view showing the state which the 1st housing and the 2nd housing fitted normally in the connector of Example 1 AA line sectional view of FIG. Top view of the first housing BB sectional view of FIG. Rear view of the first housing Sectional view of the second housing The top view showing the state which the 1st housing and the 2nd housing fitted normally in the connector of Example 2 CC sectional view of FIG. Front view of second housing Rear view of the first housing The front view of the 2nd housing in the connector of Example 3 DD sectional view of the DD line in FIG. Sectional drawing of the state which the 1st housing and the 2nd housing fitted normally in the connector of Example 4

In the present invention, the low-rigidity portion may be disposed in a region of the oscillating portion where the lock arm collides.
According to this configuration, since the lock arm directly collides with the low-rigidity portion, loss of energy transmitted from the lock arm to the low-rigidity portion is reduced.

In the present invention, among the plurality of wall portions constituting the oscillating portion, only the wall portion directly colliding with the lock arm is the low rigidity portion, and among the plurality of wall portions constituting the oscillating portion, The wall portion that does not directly collide with the lock arm may be the high-rigidity portion.
According to this configuration, energy transmitted from the lock arm to the oscillating portion is concentrated on the low-rigidity portion, so that energy loss is reduced.

The present invention is such that the oscillating portion has a form in which both ends are connected to the first housing and straddle the lock arm in a bridge shape, and the high-rigidity portion extends from one end of the oscillating portion to the other. You may be continuous over the said edge part.
According to this configuration, since both ends of the high-rigidity portion constituting the oscillating portion are connected to the first housing, the oscillating portion is unlikely to be improperly deformed, and the lock arm is reliably protected from foreign matter interference and the like. Can do.

In the present invention, the oscillating portion may be formed with a slit along a boundary between the high-rigidity portion and the low-rigidity portion.
According to this configuration, by providing the slit along the boundary between the high rigidity portion and the low rigidity portion, the low rigidity portion is likely to vibrate.

The present invention comprises a push operation surface formed on the lock arm for elastically displacing the lock arm in the unlocking direction, a part of the push operation surface, and a shock sound generated by colliding with the oscillation unit. And a striking surface that generates the.
According to this configuration, since a part of the push operation surface also serves as the striking surface, the shape is simplified compared to the case where the striking surface is formed separately from the push operation surface.

<Example 1>
A first embodiment embodying the present invention will be described below with reference to FIGS. As shown in FIGS. 1 and 2, the connector 1 of this embodiment includes a first housing 10 and a second housing 30. The 1st housing 10 and the 2nd housing 30 are fitted by making it approach in the state where each front end was made to oppose.

The first housing 10 is made of synthetic resin, and a well-known female terminal first metal fitting (not shown) is inserted therein. Accordingly, the first housing 10 is referred to as a female housing. As shown in FIGS. 4 and 5, the upper surface (outer surface) of the first housing 10 has a shape in which a substantially central portion in the width direction is recessed, and is open to the front and rear end surfaces of the first housing 10. 11 is formed. A lock arm 12 is housed in the housing recess 11 along the upper surface of the first housing 10 (the bottom surface of the housing recess 11).

As shown in FIG. 4, the lock arm 12 as a whole is formed on the main body 13 extending in the front-rear direction (a direction parallel to the fitting direction of the first housing 10 and the second housing 30), and the front end of the main body 13. The oscillating fulcrum part 14 and the operation part 15 formed at the rear end part of the main body part 13 are provided. The swing fulcrum portion 14 is continuous with the outer surface of the first housing 10. Accordingly, the lock arm 12 is formed integrally with the first housing 10 and extends rearwardly from the swing fulcrum portion 14 in a cantilevered manner. In addition, the operation unit 15 is disposed at the extended end of the lock arm 12. A lock projection 16 is formed on the upper surface of the main body 13.

The lock arm 12 is always held at the lock position (see FIG. 2) by the rigidity of the swing fulcrum portion 14 (when the

housings

10 and 30 are not fitted). Further, the lock arm 12 is tilted downward with the swing fulcrum 14 as a fulcrum (in a direction intersecting with the fitting direction of both the

housings

10 and 30, and is operated with the main body 13 on the outer surface of the first housing 10. It can be elastically bent to the unlocking position in the direction in which the portion 15 is approached.

As shown in FIG. 4, the upper surface of the operation unit 15 is a push operation surface 17 on which an operator performs a push operation for elastically displacing the lock arm 12 from the lock position to the lock release position. A front end side region of the push operation surface 17 is a striking surface 18. When the lock arm 12 is in the locked position, the striking surface 18 is parallel to the fitting direction of the

housings

10 and 30 and is in the locked position when the lock arm 12 is elastically returned from the unlocked position to the locked position. It is almost perpendicular to the displacement direction (upward) just before reaching. The striking surface 18 functions as a fitting detection means for notifying the operator that both

housings

10 and 30 have been properly fitted.

As shown in FIGS. 4 and 5, the first housing 10 is integrally formed with the oscillation unit 20. The oscillating portion 20 has a resonance space 21, and when the lock arm 12 is elastically restored by the normal fitting of both the

housings

10, 30, the impact surface 18 is caused to collide with the impact surface 18, and an impact sound is generated. The impact sound is amplified in the resonance space 21. By generating the impact sound, the operator can detect that both

housings

10 and 30 are properly fitted.

As shown in FIGS. 4 and 5, the oscillating portion 20 includes a pair of left and right side walls 22 (wall portions that are constituent elements of the present invention) whose left and right ends are connected to the upper end of the inner side surface of the housing space, and left and right side walls. An upper surface wall 23 (wall portion which is a constituent element of the present invention) connected to the upper end edge of the front wall 22 and a front wall 24 (book) connected to the front end edge of the left and right side wall 22 and the front end edge of the upper surface wall 23 at a substantially right angle. And a lower surface wall 25 (a wall portion which is a constituent element of the present invention) connected to a lower end edge of the left and right side wall 22 and a lower end edge of the front wall 24 at a substantially right angle. Yes. A space surrounded by the left and right side walls 22, the upper wall 23, the front wall 24, and the lower wall 25 is a resonance space 21. The resonance space 21 is opened only on the rear side of the oscillation unit 20.

As shown in FIGS. 4 and 5, the side wall 22, the upper surface wall 23, and the front wall 24 among the plurality of wall portions constituting the oscillating portion 20 (resonance space 21) are highly rigid portions having relatively large wall thickness dimensions. 26. Further, the lower wall 25 which is the remaining wall portion is a low-rigidity portion 27 having a wall thickness dimension smaller than that of the high-rigidity portion 26 and having low rigidity. The low rigidity portion 27 is easier to vibrate (elastically deform) than the high rigidity portion 26. The low-rigidity portion 27 is disposed in a region of the oscillating portion 20 where the striking surface 18 collides. In other words, almost the entire region where the striking surface 18 (lock arm 12) directly collides among the plurality of walls constituting the oscillating portion 20 is the low-rigidity portion 27 (lower surface wall 25). Among the plurality of wall portions constituting the structure, a region where the striking surface 18 (the lock arm 12) does not directly collide is the high-rigidity portion 26 (the side wall 22, the upper surface wall 23, the front wall 24).

As described above, the oscillating portion 20 has a configuration in which both end portions (left and right end portions) in the width direction are connected to the upper end portions of the left and right inner side surfaces of the accommodation space, and the lock arm 12 is bridged. The formation region of the oscillating unit 20 in the front-rear direction is a region corresponding to the front end side region of the operation unit 15 in the lock arm 12, that is, a region corresponding to the striking surface 18. Therefore, the rear end side region (the region behind the striking surface 18) of the push operation surface 17 is exposed rearward from the oscillating portion 20, so that the unlocking operation can be performed.

The oscillating unit 20 of the above form also has a function as a protective unit for restricting other members from inadvertently interfering with the operation unit 15 and elastically displacing the lock arm 12 in the unlocking direction. A function of restricting foreign matter such as an electric wire (not shown) between the inner side surface of the housing recess 11 and the outer side surface of the lock arm 12, or between the lower surface of the lock arm 12 and the upper surface of the first housing 10. It also has a function of restricting the lock arm 12 from being illegally displaced in the direction opposite to the unlocking direction by foreign matter such as an electric wire entering.

The high-rigidity portion 26 is continuous from the left end connected to the left inner wall surface of the housing recess 11 in the oscillating portion 20 to the right end connected to the right inner wall surface of the housing recess 11. . Thus, since the high rigidity part 26 which comprises the oscillation part 20 is connected with the 1st housing 10 in the both ends, the oscillation part 20 does not produce an unauthorized deformation | transformation easily. Therefore, the lock arm 12 can be reliably protected from foreign matter interference and the like.

The second housing 30 is made of synthetic resin, and, as shown in FIG. 6, the terminal holding portion 31 and the front from the terminal holding portion 31 (direction approaching the first housing 10 when both the

housings

10 and 30 are fitted). And a hood portion 32 projecting in a rectangular tube shape. The terminal holding portion 31 holds a plurality of second terminal fittings (not shown) having a known male shape, and a tab at the tip of the second terminal fitting is surrounded by a hood portion 32. A locking projection 33 that protrudes downward (inside the hood portion 32) is formed on the upper wall portion constituting the hood portion 32.

Next, the operation of the first embodiment will be described. When the fitting of both

housings

10 and 30 is started and the first housing 10 enters the hood portion 32, the lock projection 16 interferes with the locking projection 33, so that the lock arm 12 moves from the lock position to the lock release position. Elastically displaced. At this time, an elastic restoring force (elastic energy) is stored in the lock arm 12. When the

housings

10 and 30 reach the proper fitting state, the lock projection 16 passes through the locking projection 33, so that the lock arm 12 is elastically moved from the unlocked position to the locked position by the stored elastic restoring force. Return.

When both the

housings

10 and 30 are properly fitted and the lock arm 12 is elastically restored, the striking surface 18 of the operating portion 15 directly collides with the low-rigidity portion 27 (lower wall 25) of the oscillating portion 20, and the low-rigidity portion. 27 vibrates and a hitting sound is generated. The generated impact sound is amplified in the resonance space 21 where the low-rigidity portion 27 directly faces. Further, when the lock arm 12 is elastically restored, the lock protrusion 16 and the locking protrusion 33 are locked, and both the

housings

10 and 30 are locked in a proper fitting state by this locking action.

The connector 1 of the present embodiment is provided in the first housing 10 and is elastically displaced during the fitting process of both the

housings

10 and 30, and the lock arm 12 is elastically restored as both the

housings

10 and 30 are properly fitted. And the resonance space 21 surrounded by the wall portions (side wall 22, upper surface wall 23, front wall 24, lower surface wall 25), and the wall portion is vibrated by colliding with the lock arm 12 that is elastically restored. And a low-rigidity part 27 that constitutes a part of the wall part and is lower in rigidity than the high-rigidity part 26. ing.

According to this configuration, when the lock arm 12 collides with the oscillating portion 20, the elastic energy stored in the lock arm 12 is concentrated on the low-rigidity portion 27 that is a part of the plurality of wall portions constituting the oscillating portion 20. The low-rigidity portion 27 vibrates with a large amplitude. Therefore, a larger impact sound is generated as compared with the case where the elastic energy stored in the lock arm 12 is dispersed over the entire wall. Moreover, since the low-rigidity portion 27 is arranged so that the lock arm 12 of the oscillating portion 20 is directly concentrated only on the collision area, the loss of energy transmitted from the lock arm 12 to the low-rigidity portion 27 is reduced. Has been.

<Example 2>
Next, a second embodiment of the present invention will be described with reference to FIGS. In the connector 2 of the second embodiment, the oscillating portion 51 has a configuration different from that of the first embodiment. Since other configurations are the same as those of the first embodiment, the same configurations are denoted by the same reference numerals, and descriptions of the structures, operations, and effects are omitted.

In the connector 1 of the first embodiment, the oscillating portion 20 is formed in the first housing 10, whereas in the connector 2 of the second embodiment, the oscillating portion 51 is formed in the second housing 50. Therefore, the first housing 40 is not provided with an oscillating portion. As shown in FIGS. 8 and 9, the oscillating portion 51 is shaped like a box and extends forward from the upper wall portion of the hood portion 32 in a cantilevered manner. As shown in FIGS. 7 and 8, a portion connecting the oscillating portion 51 and the hood portion 32 is a thin hinge-like base end portion 52 elongated in the width direction. Therefore, the oscillating portion 51 is connected to the upper wall portion (the hood portion 32) via the hinge-like base end portion 52 and extends from the hinge-like base end portion 52 in a cantilever manner. The oscillating portion 51 can vibrate (elastically deform) in the vertical direction with the hinge-like base end portion 52 as a fulcrum.

As shown in FIGS. 8 and 9, the oscillating portion 51 includes a pair of left and right side walls 53 (wall portions which are constituent elements of the present invention) and an upper surface wall 54 (mainly connected to the upper edge of the left and right side walls 53. A wall part which is a constituent element of the invention), a rear wall 55 (a wall part which is a constituent element of the present invention) connected to the rear end edge of the left and right side wall 53 and the rear end edge of the upper surface wall 54 at right angles, It is comprised from the lower surface wall 56 (wall part which is a component of this invention) connected to the lower end edge of the both-sides wall 53 and the lower end edge of the rear surface wall 55 at substantially right angle. A space surrounded by the left and right side walls 53, the upper surface wall 54, the rear surface wall 55, and the lower surface wall 56 is a resonance space 57. The resonance space 57 is opened only on the front side of the oscillation unit 51.

As shown in FIG. 8, the hinge-like base end 52 is connected to the lower end edge of the rear wall 55. The formation region of the oscillating portion 51 in the front-rear direction is a region corresponding to the front end side region of the operation portion 15 in the lock arm 12 in a state where both the

housings

40 and 50 are properly fitted, that is, a region corresponding to the striking surface 18. is there. Accordingly, in the front-rear direction with respect to the first housing 40, the rear end side region (the region behind the striking surface 18) of the push operation surface 17 is exposed rearward from the oscillating portion 51. Is possible.

As shown in FIG. 9, among the plurality of wall portions (side wall 53, upper surface wall 54, rear surface wall 55, lower surface wall 56) constituting the oscillating portion 51 (resonance space 57), the side wall 53 and the upper surface wall 54 The rear wall 55 is a highly rigid portion 58 having a relatively large wall thickness dimension. Further, the lower wall 56 which is the remaining wall portion is a low-rigidity portion 59 having a wall thickness dimension smaller than that of the high-rigidity portion 58 and having low rigidity. The low rigidity portion 59 is easier to vibrate (elastically deform) than the high rigidity portion 58. Further, the low rigidity portion 59 is disposed in a region of the oscillation portion 51 where the striking surface 18 collides. In other words, almost the entire region of the oscillating portion 51 where the striking surface 18 collides is the low-rigidity portion 59 (lower surface wall 56).

As shown in FIGS. 7 and 8, the hinge-like base end portion 52 has a front end of the locking projection 33 at a position slightly behind the front end (opening end) of the hood portion 32 (upper wall portion) in the front-rear direction. It is arranged to be connected to. The front end of the oscillating portion 51 protrudes further forward than the foremost end of the hood portion 32. Therefore, as shown in FIG. 7, in the region between the foremost end of the hood part 32 and the hinge-like base end part 52, the oscillation part 51 is allowed to be relatively displaced (vibrated) with respect to the upper wall part. For this purpose, a pair of left and right slits are formed.

The positional relationship of the oscillating portion 51, the hinge-like base end portion 52, and the striking surface 18 in a state where both the

housings

40, 52 are properly fitted will be described. Since the front and rear directions are based on the first housing 40, the front and rear directions (notation) of the oscillating portion 51 and the hinged base end portion 52 are opposite to the above. As shown in FIG. 8, the length dimension of the oscillating portion 51 is shorter than the push operation surface 17 in the front-rear direction. The front end of the push operation surface 17 is located in the vicinity of the hinge-like base end portion 52, and the rear end of the push operation surface 17 is located behind the protruding end of the oscillation unit 51.

When both the

housings

40 and 50 are properly fitted and the lock arm 12 is elastically returned from the unlocked position to the locked position by the stored elastic restoring force, the striking surface 18 of the operation unit 15 is moved to the lower surface (low rigidity) of the oscillation unit 51. Part 59) collides directly and a hitting sound is generated. The generated hitting sound is amplified in the resonance space 57 where the low-rigidity part 59 directly faces. When the striking surface 18 collides with the low-rigidity portion 59, the oscillating portion 51 vibrates in the vertical direction with the hinge-like base end portion 52 as a fulcrum, so that a striking sound is also generated by the vibration of the oscillating portion 51.

<Example 3>
Next, a third embodiment of the present invention will be described with reference to FIGS. In the connector 3 of the third embodiment, the oscillating portion 61 provided in the second housing 60 is configured differently from the oscillating portion 51 of the second embodiment. Since the other configuration is the same as that of the second embodiment, the same reference numeral is given to the same configuration, and the description of the structure, operation, and effect is omitted.

In the connector 2 of the second embodiment, the left and right side edges of the lower surface wall 56 (low rigidity portion 59) are connected to the lower end edges of the left and right side surface walls 53 (high rigidity portion 58), and the lower surface wall 56 (low rigidity portion 59). The rear end edge was connected to the lower end edge of the rear wall 55 (high rigidity portion 58). In contrast, in the connector 3 according to the third embodiment, the rear end edge of the lower surface wall 56 (low rigidity portion 59) is connected to the lower end edge of the rear surface wall 55 (high rigidity portion 58). The left and right side edges of the rigid part 59) are not connected to the lower edge of the left and right side wall 53 (high rigidity part 58).

That is, in the oscillating portion 61, a slit 62 is formed along the boundary between the high-rigidity portion 58 and the low-rigidity portion 59. By providing such a slit 62, the low-rigidity portion 59 is likely to vibrate up and down with its rear edge as a fulcrum. Therefore, when the striking surface 18 of the lock arm 12 collides with the low-rigidity portion 59, the low-rigidity portion 59 vibrates with a large amplitude, so that a loud striking sound can be generated.

<Example 4>
Next, a fourth embodiment embodying the present invention will be described with reference to FIG. In the connector 4 of the fourth embodiment, the oscillating portion 71 provided in the second housing 70 is configured differently from the oscillating portion 51 of the second embodiment. Since the other configuration is the same as that of the second embodiment, the same reference numeral is given to the same configuration, and the description of the structure, operation, and effect is omitted.

The oscillating portion 71 includes a pair of left and right side walls 72 (wall portions that are constituent elements of the present invention) and a front wall 73 that is connected to the front end edges of the left and right side wall walls 72 at substantially right angles (wall portions that are constituent elements of the present invention). A rear wall 74 (a wall part which is a constituent element of the present invention) connected to the rear end edges of the left and right side walls 72, a lower end edge of the left and right side walls 72, a lower end edge of the front wall 73, and a rear wall 74. It is comprised from the lower surface wall 75 (wall part which is a structural requirement of this invention) connected to a lower end edge at substantially right angle. A space surrounded by the right and left side walls 72, the front wall 73, the rear wall 74, and the lower wall 75 is a resonance space 76. The resonance space 76 is opened only on the upper surface side of the oscillation unit 71.

The hinge-like base end portion 52 is connected to the lower end edge portion of the rear wall 74. The formation region of the oscillating portion 71 in the front-rear direction is a region corresponding to the front end side region (striking surface 18) of the operation portion 15 in the lock arm 12 in a state where both the

housings

40 and 70 are properly fitted. Therefore, in the front-rear direction with respect to the first housing 40, the rear end side region (the region behind the striking surface 18) of the push operation surface 17 is exposed rearward from the oscillation unit 71. Is possible.

Of the plurality of wall portions (side wall 72, front wall 73, rear wall 74, and lower wall 75) constituting the oscillation unit 71 (resonance space 76), the left and right side walls 72, the front wall 73, and the rear wall 74 are compared. This is a highly rigid portion 77 having a large target wall thickness. Further, the lower wall 75 which is the remaining wall portion is a low-rigidity portion 78 having a wall thickness dimension smaller than that of the high-rigidity portion 77 and having low rigidity. The low rigidity portion 78 is easier to vibrate (elastically deform) than the high rigidity portion 77. Further, the low rigidity portion 78 is disposed in a region of the oscillation portion 71 where the striking surface 18 collides. In other words, almost the entire region of the oscillating portion 71 where the striking surface 18 collides is the low-rigidity portion 78 (lower surface wall 75).

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the first to fourth embodiments, the low-rigidity portion is arranged in a region where the lock arm of the oscillating portion directly collides, but the low-rigidity portion is a region where the lock arm of the oscillating portion does not directly collide. May be arranged.
(2) In the first embodiment, the high-rigidity portion is continuous from one end portion of the oscillation portion to the other end portion. However, the high-rigidity portion is formed from one end portion of the oscillation portion. You may distribute | arrange only to a part of area | region which reaches the other edge part.
(3) In the first embodiment, both ends of the oscillating part are connected to the first housing and the lock arm is bridged over the bridge. However, the oscillator is not bridged over the lock arm. (A form extending in a cantilever manner) may be used.
(4) In the said Example 1, 4, you may apply the structure which forms a slit in the boundary of the high-rigidity part described in Example 3, and a low-rigidity part.
(5) In the second, third, and fourth embodiments, a thin hinge-like base end portion is formed at the boundary portion between the oscillating portion and the hood portion, so that the entire oscillating portion easily vibrates with respect to the hood portion. However, the hinge-like base end portion may not be formed, and the high-rigidity portion of the oscillating portion may not be relatively displaced with respect to the hood portion.

DESCRIPTION OF SYMBOLS 1 ... Connector 10 ... 1st housing 12 ... Lock arm 20 ... Oscillating part 21 ... Resonance space 22 ... Side wall (wall part)
23 ... Upper surface wall (wall part)
24 ... Front wall (wall)
25 ... Bottom wall (wall)
26: High rigidity portion 27: Low rigidity portion 30:

Second housing

2, 3, 4 ... Connector 40 ...

First housing

50, 60, 70 ...

Second housing

51, 61, 71 ... Oscillating

portion

53, 72 ... Side wall (Wall)
54 ... Upper wall (wall)
55, 74 ... rear wall (wall)
56, 75 ... bottom wall (wall)
57,76 ...

resonance space

58,77 ...

high rigidity part

59,78 ... low rigidity part 62 ... slit 73 ... front wall (wall part)

Claims

A first housing;
A second housing engageable with the first housing;
A lock arm provided in the first housing, elastically displaced in a fitting process of the first housing and the second housing, and elastically restored when the first housing and the second housing are properly fitted; ,
An oscillating portion that has a resonance space surrounded by a plurality of walls, and causes the wall to vibrate by causing the lock arm to return elastically to generate an impact sound;
A highly rigid portion constituting a part of the plurality of wall portions;
A connector comprising a part of the plurality of wall portions and a low-rigidity portion having a lower rigidity than the high-rigidity portion.
The connector according to claim 1, wherein the low-rigidity portion is disposed in a region of the oscillation portion where the lock arm collides.
Of the plurality of wall portions constituting the oscillating portion, only the wall portion with which the lock arm directly collides is defined as the low-rigidity portion,
The connector according to claim 2, wherein the wall portion that does not directly collide with the lock arm among the plurality of wall portions constituting the oscillating portion is the high-rigidity portion.
The oscillating portion has a form in which both ends are connected to the first housing and bridge the lock arm in a bridge shape,
The connector according to claim 1, wherein the high-rigidity portion is continuous from one end portion of the oscillating portion to the other end portion.
The connector according to claim 1, wherein a slit is formed in the oscillating portion along a boundary between the high-rigidity portion and the low-rigidity portion.
A push operation surface formed on the lock arm for elastically displacing the lock arm in the unlocking direction;
The connector according to claim 1, further comprising a striking surface that constitutes a part of the push operation surface and generates an impact sound by colliding with the oscillating portion.