CN106937186B

CN106937186B - Vehicle speaker

Info

Publication number: CN106937186B
Application number: CN201610825899.XA
Authority: CN
Inventors: 吉田祐介; 安斋政实; 古贺勇贵; 田中芳尚
Original assignee: Alpine Electronics Inc; Honda Access Corp
Current assignee: Alpine Electronics Inc; Honda Access Corp
Priority date: 2015-09-17
Filing date: 2016-09-14
Publication date: 2020-02-11
Anticipated expiration: 2036-09-14
Also published as: CN106937186A; JP6478885B2; JP2017060051A

Abstract

The invention provides an in-vehicle speaker which is easy to install on a vehicle and can ensure high sealing performance. In a vehicle-mounted speaker (1), in a manufacturing process before being mounted on a vehicle, main cushion members (11A, 11B) are annularly pasted on the front surface of a flange part (7) of a frame (6) with a cut part (S) therebetween, a through hole (8) is provided on the inner bottom surface of the cut part (S), and an auxiliary cushion member (13) is pasted on a support wall part (7B) protruding from the inner peripheral side of the flange part to the front side, the auxiliary cushion member closing the cut part, so that if a mounting screw (9) is inserted into the through hole in a state where the auxiliary cushion member is turned over to expose the through hole and the frame screw is fixed to the support member (10) and then the auxiliary cushion member is restored and embedded in the cut part, the main cushion member and the auxiliary cushion member are annularly continued again on the front surface of the flange part.

Description

Vehicle speaker

Technical Field

The present invention relates to a vehicle-mounted speaker mounted on a door of an automobile or the like, and more particularly to a sealing structure for sealing a space between a front surface of the speaker and an interior panel of the vehicle or the like.

Background

When a speaker is mounted in a door of an automobile, dust, rain water, and the like enter the door through a gap between a glass window and a vehicle body, and therefore, in order to prevent the dust, rain water, and the like from entering a vehicle interior after passing through an interior panel of the door, a seal structure for sealing a space between a front surface of the speaker and the interior panel of the door is widely used.

As a conventional example of such a sealing structure, there is proposed a structure as described in patent document 1, in which a flange portion of a frame, which is a component of a speaker, is fixed to a speaker box (speaker box) fixed to a rear surface of a door by screws, an annular partition wall protruding so as to surround the flange portion of the frame is formed in the speaker box, and an annular cushion member is attached to a front surface of the annular partition wall.

As another conventional example, there is proposed a structure in which ring-shaped cushion members are attached to the front and back sides of a flange portion of a frame, through-holes are formed in the flange portion located on the inner peripheral side of the cushion members, and the frame is fixed to a support member of a vehicle using mounting screws inserted through the through-holes, as described in patent document 2.

In the sealing structure for a speaker described in patent document 1, when the speaker box is mounted in the door in a state where the speaker box is screwed to the inside of the annular partition wall, the annular buffer member is sandwiched between the edge portion of the opening formed in the interior plate of the door and the annular partition wall of the speaker box to be compressed, and therefore the speaker can be completely sealed by the buffer member.

In the sealing structure for a speaker described in patent document 2, when the speaker is mounted in the door in a state where the frame is screwed to the mounting panel, the cushion member on the back side is sandwiched between the mounting panel and the back surface of the flange portion to be in a compressed state, and the cushion member on the front side is sandwiched between the opening edge portion of the interior panel and the front surface of the flange portion to be in a compressed state, so that the speaker can be completely sealed by the two cushion members.

Documents of the prior art

Patent document

Patent document 1: japanese Kokai publication Hei-6-57746

However, in the former conventional example described in patent document 1, since an annular buffer member is attached to an annular partition wall of a speaker box surrounding the speaker and the speaker is sealed by the buffer member, it is necessary to fix a large speaker box in a limited space in a door, and there are problems that an installation space of the speaker is greatly restricted, and component costs are increased.

In the latter conventional example described in patent document 2, since the buffer member is attached to the flange portion through which the through hole for inserting the screw is provided, on the outer peripheral side of the through hole, even if the buffer member is attached to the flange portion of the frame in advance, the speaker screw can be fixed by the through hole exposed on the inner peripheral side of the buffer member. However, when it is difficult to secure a space for attaching the cushion member on the outer peripheral side of the through hole due to, for example, the reduction of the outer diameter of the frame, the cushion member must be attached to the flange portion from above the through hole after the speaker is screwed in a state where the cushion member is not attached. That is, in the case of the optional type speaker, the buffer member is attached by a retailer, and in the case of the sales type speaker, the buffer member is attached by a general user, but the buffer member is formed of a soft and easily deformable material, and it is troublesome to attach such a buffer member to the flange portion of the frame using a double-sided tape, and therefore, the mounting work of the speaker becomes complicated.

Disclosure of Invention

The present invention has been made in view of the above-described circumstances of the conventional technology, and an object thereof is to provide an in-vehicle speaker that can be easily mounted on a vehicle and can ensure high sealing performance.

In order to achieve the above object, an in-vehicle speaker according to the present invention is an in-vehicle speaker in which an annular flange portion is provided at a front end portion of a frame supporting a diaphragm on a front side and a magnetic circuit on a rear side, and a through hole for inserting a mounting screw is provided in the flange portion, and the frame is attached to a support member of a vehicle using the mounting screw, wherein the frame has a support wall portion protruding forward on an inner peripheral side of the flange portion, a main body cushion member is annularly attached to a front surface of the flange portion so as to have a cut portion so as to expose the through hole, an auxiliary cushion member is attached to the support wall portion so as to close the cut portion, and the through hole can be exposed by deforming the auxiliary cushion member.

In the vehicle-mounted speaker having the above-described configuration, since the main cushion member is annularly attached to the flange portion of the frame so as to have the cutout portion, the through hole through which the mounting screw is inserted is provided in the inner bottom surface of the cutout portion, and the auxiliary cushion member is attached to the support wall portion protruding forward from the inner peripheral side of the flange portion so as to close the cutout portion, if the mounting screw is inserted into the through hole in a state where the auxiliary cushion member is opened to expose the through hole and the frame is mounted on the support member such as the back surface of the door, and then the auxiliary cushion member is fitted into the cutout portion again, a seal structure in which the main cushion member and the auxiliary cushion member are annularly continuous can be formed in front of the flange portion. Therefore, the worker who mounts the speaker can surely seal the front surface of the speaker and the interior panel of the vehicle by a simple operation of turning over the auxiliary cushion member, fixing the screw, and then returning to the original state without performing a troublesome work of attaching the main body cushion member.

In the above-described configuration, when the main cushion member and the auxiliary cushion member are elastic sealing materials having the same cross-sectional shape, it is preferable that the main cushion member and the auxiliary cushion member be formed of the same elastic sealing material by cutting the long elastic sealing material into different lengths.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the vehicle-mounted speaker of the present invention, even if troublesome work for attaching the main body cushion member is not performed, high sealing performance can be secured in front of the speaker by a simple work for turning the auxiliary cushion member open and fixing the screw and then returning to the original state.

Drawings

Fig. 1 is a cross-sectional view showing a state in which an in-vehicle speaker according to an embodiment is mounted in a door of an automobile.

Fig. 2 is a front view showing an installation state of the speaker in which the internal board is removed from fig. 1.

Fig. 3 is a sectional view taken along the line III-III of fig. 2.

Fig. 4 is a perspective view showing a state before the speaker is mounted.

Fig. 5 is an explanatory diagram showing a screw fixing operation of the speaker.

Description of the symbols

1 vehicle speaker

2 magnetic circuit

3 Voice coil

4 vibrating plate

5 Bomb (damper)

6 frame

7 flange part

7a expansion part

7b supporting wall portion

7c concave part

8 through hole

9 mounting screw

10 support member

11A, 11B body cushion member

12 double-sided adhesive tape

13 auxiliary buffer member

14 double-sided adhesive tape

15 built-in board

15a annular projection

16 resilient spacer

17 tool

18 grid

S cut-off part

Detailed Description

An embodiment of the present invention will be described with reference to the drawings, and as shown in fig. 1, an in-vehicle speaker 1 according to an embodiment of the present invention is a member that is mounted in a door of an automobile and emits reproduced sound into a vehicle interior. The speaker 1 is mainly configured by a magnetic circuit 2 having a magnetic gap, a voice coil 3 disposed in the magnetic gap and driven by electromagnetic interaction when energized, a substantially conical diaphragm 4 vibrating in conjunction with the voice coil 3, an annular damper 5 elastically supporting the voice coil 3 and the diaphragm 4, and a frame 6 holding an outer peripheral portion of the diaphragm 4 and an outer peripheral portion of the damper 5, and the frame 6 is fixed and coupled to a yoke that is a component of the magnetic circuit 2.

An annular flange portion 7 is integrally provided at the distal end portion of the frame 6, and as shown in fig. 2 and 4, a part of the flange portion 7 is an expanded portion 7a that protrudes outward in the radial direction. An annular support wall portion 7b is provided on the inner peripheral side of the flange portion 7 so as to protrude forward, and three through holes 8 are provided on the flange portion 7 on the outer peripheral side of the support wall portion 7b so as to maintain equal intervals of substantially 120 degrees. One of the three through holes 8 is provided in the expanded portion 7a, but the remaining two through holes 8 are provided in the bottom surface of the recess 7c formed in the flange portion 7, and a part of the support wall portion 7b is continuous with the inner peripheral surface of the recess 7 c. Each through hole 8 is a screw hole having a slightly larger diameter than the mounting screw 9 for speaker fixing, and the details will be described later, but the speaker 1 is mounted in the door of the automobile by inserting the mounting screw 9 into each through hole 8 and fixing it to the support member 10 of the vehicle by screws (see fig. 1).

Two

main cushion members

11A and 11B are bonded to the front surface of the flange portion 7 with a double-sided tape 12, and the

main cushion members

11A and 11B are continuous in a ring shape having a cut portion S located directly above the recess portion 7 c. That is, a long main body cushion member 11A is attached to an area extending from one concave portion 7c to the other concave portion 7c after passing outside the expanded portion 7a, a short main body cushion member 11B is attached to an arc-shaped area sandwiched between the two concave portions 7c, and a cut-off portion S is formed between end faces of the two main

body cushion members

11A and 11B.

An auxiliary cushion member 13 is attached to the inner peripheral surface of the support wall portion 7b facing the recess portion 7c using a double-sided adhesive tape 14, and the cut portion S is closed by the auxiliary cushion member 13. The auxiliary cushioning member 13 can be turned up with the support wall portion 7b as a fixed end, and when the cut portion S is opened by turning up the auxiliary cushioning member 13 in this way, the recess portion 7c and the through hole 8 are exposed in the cut portion S.

The auxiliary cushion member 13 is different in length and identical in cross-sectional shape and material to the

main cushion members

11A and 11B, and the

main cushion members

11A and 11B and the auxiliary cushion member 13 are each formed by cutting an elongated elastic sealing material having a square cross-section and made of urethane foam or the like by a predetermined length. Further, since the auxiliary cushion member 13 is set to be slightly longer than the length in the radial direction of the cut-off portion S, the auxiliary cushion member 13 slightly protrudes from the outer peripheral surface of the

main cushion members

11A and 11B, and the auxiliary cushion member 13 is easily turned up by the protruding portion. Since the auxiliary cushion member 13 is set to be slightly larger than the length of the cut portion S in the circumferential direction, the auxiliary cushion member 13 is in contact with the end surfaces of the

main cushion members

11A and 11B in a state of being compressed in the circumferential direction when the auxiliary cushion member 13 is inserted into the cut portion S.

Therefore, as shown in fig. 4, when the speaker 1 is viewed from the front before being mounted to the door, the two cut portions S sandwiched by the main

body cushion members

11A and 11B are respectively closed by the auxiliary cushion member 13, and the 2 main

body cushion members

11A and 11B are annularly connected to the two auxiliary cushion members 13. Then, the two through holes 8 are covered by the auxiliary cushion members 13, and the remaining one through hole 8 is exposed to the expanded portion 7a inside the long cushion member 11A.

As described above, in the vehicle-mounted speaker 1 of the present embodiment, in the manufacturing process, the main

body cushion members

11A and 11B are annularly stuck to the front surface of the flange portion 7 of the frame 6 via the cut portion S, the auxiliary cushion member 13 is stuck to the support wall portion 7B protruding forward from the inner peripheral side of the flange portion 7, and the auxiliary cushion member 13 is inserted into the cut portion S, so that the two through holes 8 provided in the inner bottom surface of the cut portion S are covered and hidden by the auxiliary cushion member 13, and the remaining one through hole 8 is exposed to the expanded portion 7a surrounded by the longer main body cushion member 11A.

Next, a procedure of mounting the vehicle-mounted speaker 1 configured as described above into the door of the automobile will be described with reference to fig. 1 and 5.

First, the inner panel 15 is removed and the speaker 1 is inserted into the door with a work space secured, and the back surface of the flange portion 7 is pressed against the support member 10 such as the back surface of the door via the elastic spacer 16. At this time, as shown in fig. 5(a), the through hole 8 provided in the recess 7c of the flange portion 7 is covered and hidden by the auxiliary cushion member 13. Next, as shown in fig. 5(b), the auxiliary cushion member 13 is turned up to expose the through hole 8, and after the mounting screw 9 is inserted into the through hole 8 from the front of the flange portion 7 in this state, the mounting screw 9 is tightened with a tool 17 such as a driver to fix the screw. At this time, the auxiliary shock-absorbing member 13 is set to have a slightly longer length in the radial direction of the cut-off portion S, and the auxiliary shock-absorbing member 13 slightly protrudes from the outer peripheral surface of the main shock-absorbing

members

11A and 11B, so that the position of the auxiliary shock-absorbing member 13 can be easily confirmed, and the auxiliary shock-absorbing member 13 can be easily turned up.

When the upwardly turned auxiliary cushion member 13 is restored and fitted into the cut-off portion S, the mounting screws 9 are covered and hidden by the auxiliary cushion member 13 as shown in fig. 3, and the 2

main cushion members

11A and 11B and the two auxiliary cushion members 13 are again annularly coupled. At this time, the auxiliary cushion member 13 is set to have a slightly larger length in the circumferential direction of the cut portion S, and the auxiliary cushion member 13 is in contact with the end surfaces of the

main cushion members

11A and 11B in a compressed state in the cut portion S, so that airtightness between the

main cushion members

11A and 11B and the auxiliary cushion member 13 is improved, and the holding force of the auxiliary cushion member 13 with respect to the cut portion S is improved, and the auxiliary cushion member 13 is less likely to come off. Further, the through hole 8 provided in the expanded portion 7a is directly inserted with a mounting screw 9 from the front of the flange portion 7 into the through hole 8, and the mounting screw 9 is tightened and screwed.

After the cut portions S of the main

body cushion members

11A and 11B are closed by the auxiliary cushion member 13, as shown in fig. 1, when the door is attached with the interior plate 15 to cover the front of the speaker 1, the annular protrusion 15a provided on the interior plate 15 cuts into the main

body cushion members

11A and 11B and the auxiliary cushion member 13, and thus the space between the front of the speaker 1 and the door interior plate 15 is completely sealed by the main

body cushion members

11A and 11B and the auxiliary cushion member 13. Further, since the grill 18 covering the front of the diaphragm 4 is provided on the inner panel 15, the reproduced sound from the speaker 1 is emitted into the vehicle interior through the grill 18.

As described above, in the vehicle-mounted speaker 1 of the present embodiment, the

main cushion members

11A and 11B are annularly stuck to the front surface of the flange portion 7 of the frame 6 via the cut portion S in advance in the manufacturing process before the mounting to the vehicle, the through hole 8 for inserting the mounting screw 9 is provided on the inner bottom surface of the cut portion S, the auxiliary cushion member 13 is stuck to the support wall portion 7B protruding forward from the inner peripheral side of the flange portion 7, and the auxiliary cushion member 13 is inserted into the cut portion S and covers the through hole 8, so that if the mounting screw 9 is inserted into the through hole 8 in a state where the auxiliary cushion member 13 is opened to expose the through hole 8 and the frame 6 is mounted to the support member 10 such as the back surface of the door, and then the auxiliary cushion member 13 is restored and fitted to the cut portion S, the main cushion member 11A can be formed on the front surface of the

flange portion

7, 11B and an auxiliary cushion member 13 are annularly continuous in sealing structure. Therefore, the work of attaching the cushion member, which is troublesome for the worker who mounts the speaker 1, becomes unnecessary, and the front surface of the speaker 1 and the interior panel 15 of the vehicle can be reliably sealed by a simple work of turning over the auxiliary cushion member 13, screwing it, and then returning to the original state.

Further, since the

main cushion members

11A, 11B and the auxiliary cushion member 13 are formed by cutting an elastic sealing material having a square cross section by a predetermined length, the

main cushion members

11A, 11B and the auxiliary cushion member 13 can be formed of the same elastic sealing material, and the cost of parts can be reduced.

In the above embodiment, the case where three through holes 8 corresponding to three mounting screws 9 are provided in the flange portion 7 of the frame 6, 2 of these through holes are exposed at the inner bottom surface of the cutout portion S at 2 positions sandwiched between the main

body cushioning members

11A, 11B, and the remaining one of the expanded portions 7a inside the main body cushioning member 11A is exposed has been described, but the cutout portion S exposing the through holes 8 may have at least one position, and for example, only one through hole 8 may be exposed at the inner bottom surface of the cutout portion S, or all three through holes 8 may be exposed at the inner bottom surface of the cutout portion S.

The number of the mounting screws 9 for fixing the frame 6 to the support member 10 is not limited to 3, and for example, the frame 6 may be fixed to the support member 10 using 1 mounting screw and a plurality of hooks. In this case, the main body buffer member may be attached to the front surface of the flange portion 7 so that the cut portion S is formed at only one position, the through hole 8 may be exposed only on the inner bottom surface of the cut portion S, and a hook or the like that can be engaged with and disengaged from the support member 10 may be provided on the back surface of the flange portion 7.

In the above embodiment, the support wall portion 7b to which the auxiliary cushioning member 13 is attached is formed in a ring shape, but the support wall portion 7b may be formed at least at a position facing the through hole 8. That is, the support wall 7b may be formed intermittently and vertically only inside the through hole 8.

Claims

1. A speaker for a vehicle-mounted speaker, comprising a speaker body,

an annular flange portion is provided at a front end portion of a frame supporting a diaphragm on a front side and a magnetic circuit on a rear side, a through hole for inserting a mounting screw is provided in the flange portion, the frame is mounted to a support member of a vehicle using the mounting screw,

the vehicle-mounted speaker is characterized in that,

the frame has a support wall portion protruding forward on an inner peripheral side of the flange portion, a main cushion member is annularly attached to a front surface of the flange portion so as to have a cutout portion so as to expose the through hole, an auxiliary cushion member is attached to the support wall portion so as to close the cutout portion, and the through hole can be exposed by deforming the auxiliary cushion member.

2. The vehicle-mounted speaker according to claim 1,

the main body buffer member and the auxiliary buffer member are elastic sealing materials having the same cross-sectional shape.