JP6016698B2 - Microphone unit mounting structure - Google Patents

Description

  The present invention relates to a structure for attaching a microphone unit incorporated in a design part.

  For example, Patent Document 1 describes a cylindrical unit formed in a frame (design part) by holding a microphone unit including a sound collection unit and wiring connected to an electrode thereof in a first holder and sealing the unit with a cap. A microphone unit mounting structure for press-fitting into the second holder is disclosed.

Japanese Utility Model Publication No. 61-197789

  In the conventional technique represented by Patent Document 1, since the cap is attached by bonding or ultrasonic welding with the first holder, the internal microphone unit cannot be easily taken out if it is stored in the first holder. . For this reason, if a malfunction such as a failure occurs in the microphone unit, the entire first holder must be replaced. If the first holder cannot be removed from the second holder, the frame itself must be replaced. I must.

  The present invention has been made in order to solve the above-described problems, and has a microphone unit mounting structure that facilitates the mounting and removal of the microphone unit and can ensure sound insulation against ambient noise. The purpose is to obtain.

The microphone unit mounting structure according to the present invention is a microphone unit mounting structure in which a microphone unit configured to include a microphone and wiring connected to the back side of the sound collecting surface thereof is attached to a target device. A columnar holder with a microphone having a stopper on its outer periphery and a column-shaped holder, and a sound collecting hole that stands up around a sound collecting hole formed in the device. A pair of holder sides formed along the height direction of the columnar holder and opposite to each other through the end face, and a fitting rib into which the microphone is fitted in a compressed state The positioning ribs are formed on the equipment side so as to be parallel to the standing direction of the fitting ribs, and the pair of holder sides Rib engages for Me-decided, characterized by comprising a device-side positioning ribs for positioning the microphone and fitting ribs attached to the holder.

  According to the present invention, it is easy to attach and remove the microphone unit, and it is possible to ensure sound insulation against ambient noise.

It is a front view which shows the apparatus to which the attachment structure of the microphone unit which concerns on this invention is applied. It is a figure which shows the back surface structure of the design panel in the apparatus of FIG. 3 is an exploded perspective view of a microphone unit mounting structure according to Embodiment 1. FIG. FIG. 3 is a perspective view showing a holder in the first embodiment. FIG. 3 is a diagram illustrating wiring routing by a wiring holding unit in the first embodiment. FIG. 3 is a diagram showing a structure on the design panel side in the first embodiment. 3 is a perspective view showing a microphone unit mounting structure according to Embodiment 1. FIG. FIG. 3 is a cross-sectional view showing a microphone unit mounting structure according to the first embodiment.

Embodiment 1 FIG.
FIG. 1 is a front view showing a device to which a microphone unit mounting structure according to the present invention is applied. FIG. 2 is a diagram showing a back surface configuration of the design panel in the apparatus of FIG.
The device 1 in FIG. 1 is a navigation device mounted on, for example, an instrument panel of a vehicle. A display monitor 3 is disposed on the design panel 2 and a sound collecting hole 4 for collecting sound in the vehicle compartment is formed. As shown in FIG. 2, a microphone unit mounting structure 5 according to the present invention is provided at a position corresponding to the sound collecting hole 4 on the back surface of the design panel 2.

  FIG. 3 is an exploded perspective view of the microphone unit mounting structure according to the first embodiment. As shown in FIG. 3, the attachment structure 5 includes a holder 6, a holder receiving portion 9 formed on the back surface of the design panel 2, a microphone unit 10, and a double-sided bonding member 11. The microphone unit 10 includes a microphone 10a having an elastic sealing member 10b on the outer periphery, and a wiring 7 connected to the back side of the sound collection surface of the microphone 10a. A connector 8 is connected to an end of the wiring 7. ing.

The sealing member 10b provided on the outer periphery of the microphone 10a is made of an elastic material such as rubber, and has a hook shape protruding in the outer diameter direction of the microphone 10a as shown in FIG.
The microphone 10a is attached to one end face of the columnar holder 6 with a double-sided adhesive member 11 such as a double-sided tape. In addition, the microphone 10a should just be affixed to the extent which can be suitably removed from the holder 6 with the double-sided bonding member 11. FIG.

FIG. 4 is a perspective view showing the holder in the first embodiment. The holder 6 is a resin holder, and as shown in FIG. 4, a base 6a, a columnar portion 6b, wiring holding portions 6d-1, 6d-2, 6d-3, 6d-4 and positioning ribs 6e-1. , 6e-2 are integrally formed.
The base portion 6a is a flat plate member in which a columnar portion 6b is erected, and a screw hole 6f is formed at an end portion thereof. As shown in FIG. 4, a contact surface, which is a plane portion parallel to the height direction, is formed around the bases of the positioning ribs 6e-1 and 6e-2 in the cylindrical portion 6b.

A concave portion 6c and a guide portion 6b are formed on the end surface of the columnar portion 6b that is separated from the base portion 6a. The positioning ribs 6e-1 and 6e-2 are holder-side positioning ribs formed along the height direction of the cylindrical portion 6b.
The microphone 10a is affixed to the recess 6c via the double-sided affixing member 11. The wiring 7 of the microphone 10a attached to the concave portion 6c is guided to the outside along the guide portion 6d.

The wiring 7 guided to the outside by the guide portion 6d is bent and held in a plurality of directions by the wiring holding portions 6d-1, 6d-2, 6d-3, and 6d-4.
FIG. 5 is a diagram showing the routing of the wiring by the wiring holding unit in the first embodiment. FIG. 5A shows the structure in which the microphone unit 10 is attached to the holder 6 as the wiring holding units 6d-1, 6d-. FIG. 5B is a perspective view as viewed from the 2,6d-3, 6d-4 side, FIG. 5B is an arrow diagram in the direction of arrow a in FIG. 5A, and FIG. 5C is FIG. ) In the direction of arrow b, FIG. 5D is an arrow view in the direction of arrow c in FIG.

As shown in FIG. 5A, the wiring 7 guided to the outside by the guide portion 6d is first, on the base 6a side along the height direction of the cylindrical portion 6b by the wiring holding portions 6d-1 and 6d-2. To be bent.
Subsequently, as shown in FIG. 5B, the wiring 7 is bent toward the positioning rib 6e-1 by the wiring holding portion 6d-3 and then bent in the opposite direction by the wiring holding portion 6d-4. Held.

  In the above-described Patent Document 1, the wire holding part is made as long as possible to press-fit the wiring to prevent disconnection of the wiring. However, since the load in the pulling direction is directly applied to the soldered joint between the microphone and the wiring, the soldered joint may be peeled off.

  On the other hand, in the present invention, the wiring 7 is bent and held in a plurality of directions as shown in FIG. 5, so that the wiring can be held even if a load in the pulling direction is applied to the side where the connector 8 is provided. Since stress is applied to the part 6d-4 and the like, a load in the pulling direction is not directly applied to the soldered joint between the microphone 10a and the wiring 7. Thereby, it can prevent that a soldering junction part peels by the tension | pulling of the wiring 7. FIG.

  FIG. 6 is a view showing the structure on the design panel side in the first embodiment, and is a view of the holder receiving portion 9 formed on the back surface of the design panel 2 as viewed from the front. As shown in FIG. 6, as the holder receiving portion 9, the fitting rib 9 a, the positioning ribs 9 b-1 and 9 b-2, the positioning ribs 9 c-1 and 9 c-2 and the screw hole portion 9 d are integrated with the design panel 2. Formed.

The fitting rib 9a is erected around the sound collecting hole 4 penetrating the design panel 2, and the microphone 10a is fitted therein. The height of the fitting rib 9a is preferably as low as possible in order to make the sound collection surface of the microphone 10a and the sound collection hole 4 as close as possible, but at least the sealing member 10b provided on the outer periphery of the microphone 10a is provided. A height that allows compression fitting is required.
That is, since the outer diameter of the protruding portion of the sealing member 10b is larger than the opening diameter of the fitting rib 9a, the fitting rib 9a can be fitted to the protruding portion of the sealing member 10b. Any height is sufficient.

As shown in FIG. 6, the positioning ribs 9 b-1 and 9 b-2 are device-side positioning ribs formed along the mounting direction so as to protrude from the wall surface adjacent to the fitting rib 9 a. Is engaged with the positioning rib 6e-1.
The positioning ribs 9c-1 and 9c-2 are device-side positioning ribs formed in a direction orthogonal to the positioning ribs 9b-1 and 9b-2 and along the mounting direction. Engage with the rib 6e-2.
The screw hole portion 9d is a screw hole for screwing the holder 6 through the screw hole 6f of the base portion 6a when the microphone 10a attached to the holder 6 is attached to the holder receiving portion 9.

FIG. 7 is a perspective view showing a microphone unit mounting structure according to the first embodiment. FIG. 8 is a cross-sectional view showing the microphone unit mounting structure according to the first embodiment. FIG. 8A is a cross-sectional view taken along line AA in FIG. b) is a cross-sectional arrow view taken along the line BB in FIG. As shown in FIG. 7, the microphone 10 a is attached to the holder receiving portion 9 via the holder 6.
At this time, as shown in FIG. 8A, the microphone 10a is fitted to the fitting rib 9a in a state where the sealing member 10b is compressed. That is, the protruding portion of the sealing member 10b is pressed against the inner wall of the fitting rib 9a, so that the sound collection surface of the microphone 10a is separated from the back side thereof. By doing in this way, it is possible to ensure the sound insulation with respect to the surrounding noise (noise) which flows in from the back side.

As shown in FIG. 8B, the positioning rib 6e-1 of the holder 6 is fitted between the positioning rib 9b-1 and the positioning rib 9b-2. At this time, the end faces of the positioning ribs 9b-1 and 9b-2 come into contact with the contact surface of the columnar portion 6b of the holder 6, whereby the movement of the holder 6 in the direction of the arrow d1 is restricted and positioned.
Further, as shown in FIG. 8B, the positioning rib 6e-2 of the holder 6 is fitted between the positioning rib 9c-1 and the positioning rib 9c-2. At this time, the end faces of the positioning ribs 9c-1 and 9c-2 come into contact with both side faces of the positioning rib 6e-2, so that the movement of the holder 6 in the direction of the arrow d2 is restricted and positioned. Further, the side surfaces of the positioning ribs 9 c-1 and 9 c-2 come into contact with the contact surface of the cylindrical upper portion 6 b of the holder 6.
By configuring in this way, it is possible to prevent positional deviation between the microphone 10a on the end face of the holder 6 and the fitting rib 9a.

  As shown in FIG. 7, with a structure in which the microphone unit 10 is attached to the holder 6 being attached to the holder receiving portion 9, a screw (not shown) is screwed to the screw hole portion 9d through the screwing hole 6f. The holder 6 is fixed to the holder receiving portion 9.

  As described above, according to the first embodiment, the columnar holder 6 in which the microphone 10a having the elastic sealing member 10b on the outer periphery is attached to one end surface, and the sound collecting hole formed in the device 1 4 and a fitting rib 9a into which the microphone 10a is fitted in a state where the sealing member 10b is compressed when the microphone unit 10 is attached to the device 1 with the holder 6. With this configuration, it is easy to attach and remove the microphone unit 10 via the holder 6. Furthermore, since the microphone 10a is fitted in a state where the sealing member 10b is compressed, it is possible to ensure sound insulation against ambient noise flowing from the back side.

  Further, according to the first embodiment, the holder-side positioning ribs 6e-1 and 6e-2 formed along the height direction of the holder 6 and the holder-side positioning rib 6e formed on the device 1 side. -1 and 6e-2 are provided with device-side positioning ribs 9b-1, 9b-2, and 9c-1 for positioning the microphone 10a attached to the holder 6 and the fitting rib 9a. By configuring in this way, it is possible to prevent positional deviation between the microphone 10a on the end face of the holder 6 and the fitting rib 9a.

  Furthermore, according to the first embodiment, wiring holders 6d-1, 6d-2, and 6d-3 that are formed on the holder 6 and that bend and hold the wiring 7 of the microphone 10a in a plurality of directions are provided. With this configuration, a load in the pulling direction is not directly applied to the soldered joint between the microphone 10 a and the wiring 7, so that the soldered joint can be prevented from peeling off due to the pulling of the wiring 7.

  In the present invention, any component of the embodiment can be modified or any component of the embodiment can be omitted within the scope of the invention.

  1 device, 2 design panel, 3 display monitor, 4 sound collection hole, 5 microphone unit mounting structure, 6 holder, 6a base, 6b cylindrical part, 6c recess, 6d guide part, 6d-1, 6d-2, 6d -3, 6d-4 Wiring holding part, 6e-1, 6e-2 Positioning rib (holder-side positioning rib), 6f Screw hole, 7 Wiring, 8 Connector, 9 Holder receiving part, 9a Fitting rib, 9b -1, 9b-2, 9c-1, 9c-2 Positioning rib (device-side positioning rib), 9d screw hole, 10 microphone unit, 10a microphone, 10b sealing member, 11 double-sided adhesive member.

Claims (2)

In a microphone unit mounting structure in which a microphone unit configured to include a microphone and a wiring connected to the back side of the sound collection surface is attached to a target device.
A columnar holder in which the microphone having an elastic sealing member on the outer periphery is attached to one end surface;
A fitting rib that is provided around a sound collecting hole formed in the device and into which the microphone is fitted in a state where the sealing member is compressed when the microphone unit is attached to the device with the holder. and,
A pair of holder-side positioning ribs formed along the height direction of the columnar holder and formed at positions opposite to each other via the end face;
The microphone and the fitting rib that are formed on the device side so as to stand parallel to the standing direction of the fitting rib, engage with the pair of holder-side positioning ribs, and are attached to the holder And positioning ribs on the equipment side
A microphone unit mounting structure characterized by comprising: Wherein formed on the holder, the mounting structure of the microphone unit according to claim 1 Symbol mounting characterized by comprising the wiring holding part for holding the wire is bent in a plurality of directions of the microphone.

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