JP2003516002A - Speaker and vehicle configuration group - Google Patents

Abstract

(57) [Summary] A speaker (1) and a vehicle configuration group (5) are proposed that enable the speaker (1) to be assembled into the vehicle configuration group (5) with minimum effort. For this purpose, the vehicle component group (5) has a recess (25), which houses the vibration insert (15, 20) of the speaker (1). To form a speaker frame (10).

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION The invention starts from a loudspeaker and a vehicle group of the type described in the preamble of the independent claims.

Conventionally, the loudspeakers used in motor vehicles are manufactured as a unique product and then assembled in a corresponding vehicle group by the vehicle manufacturer or by a vehicle group, for example a door module or cockpit manufacturer. In this case, the speaker is assembled to the vehicle component group by fixing the speaker frame to the corresponding vehicle component group, for example, by rivet fastening or screwing. Furthermore, in this case, a vibration-proof strip made of, for example, a foam material is inserted between the speaker frame and the vehicle component group. This anti-vibration strip is in principle already preassembled on the speaker frame or on the vehicle assembly and serves as chattering protection.

Advantages of the invention The loudspeaker according to the invention with the features of the independent claim and the vehicle component group according to the invention have a recessed portion in comparison with the prior art, which recessed portion. Has the advantage of forming the speaker frame of the speaker. Thus, the speaker frame is incorporated within the vehicle assembly and thus forms a united component of the vehicle assembly. A separate speaker frame is no longer needed and can therefore be saved. The same applies to fixing elements, such as screws or rivets, which were conventionally required for fixing the speaker frame to the vehicle assembly. Furthermore, when the speaker frame is incorporated into the vehicle component group, chattering or vibration noise of the speaker frame with respect to the vehicle component group is eliminated, so that the anti-vibration strip is no longer necessary.

Apart from the component savings mentioned above, the assembly step is also saved. Assembly of the speaker frame to the vehicle assembly, for example with screws or rivets, is no longer necessary. Assembling steps for attaching the anti-vibration strip to the speaker frame or vehicle assembly to prevent chattering are also omitted.

Furthermore, by incorporating the speaker frame into the vehicle component group, chattering of the speaker frame with respect to the vehicle component group is reliably avoided, and mistakes in fixing the speaker frame to the vehicle component group can no longer occur. , Quality improvement can be obtained.

The measures described in the dependent claims enable advantageous constructions and improvements of the loudspeaker and the vehicle assembly described in the independent claims.

If the vehicle component group is formed of a thin plate, the recessed portion can be formed particularly easily and with a small amount of work by appropriately deforming the thin plate.

The same applies to the formation of vehicle components made of plastic and to the production of vehicle components using injection or blow moulds. In this case, the recess is
This can be achieved by a simple modification of the injection mold or blow mold used for the production of conventional vehicle components.

[0009]   Example description   Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows the structure of a conventional loudspeaker in the form of an exploded view. In this case, the speaker is characterized by the reference numeral 1 and has an annular magnet 40. The annular magnet 40 includes a magnetic pole core 35 and a magnetic pole plate 45 mounted on the annular magnet 40. In this case, the annular magnet 40, the magnetic pole core 35, and the magnetic pole plate 45 are
The magnet system of the speaker 1 is formed. The annular magnet 40 and the magnetic pole plate 45, which is also formed in an annular shape, each have a central circular opening. The magnetic pole core 35 is guided through this opening. This can be seen from the side view or cross-sectional view of the speaker 1 according to the present invention shown in FIG. In this case, according to FIGS. 1 and 3, the magnetic pole core 35 is integrally connected to the mounting surface 65. The ring-shaped magnet 40 is mounted on the mounting surface 65. In this case, the ring magnet 40
On the side opposite to the mounting surface 65, the magnetic pole plate 45 is mounted on the annular magnet 40. According to FIGS. 1 and 3, the speaker frame 10 is assembled on the side of the magnetic pole plate 45 opposite to the annular magnet 40. In this case, the speaker frame 10 can be fixed to the magnetic pole plate 45 by screwing, riveting, adhesive bonding or the like shown in FIG. In FIG. 3, a suitable fastening element is characterized by the reference numeral 70 and can be formed as a screw, a rivet or the like. In this case, the speaker frame 10 is
It is stepped and formed into a conical shape. In this case, the diameter of the speaker frame 10 is reduced toward the magnetic pole plate 45. However, alternatively, the speaker frame 10 may have stepped vertical walls. This wall is magnetic pole plate 4
No conical taper towards 5. In this case, the speaker frame 10
Has an opening having a circular outer circumference, not only at the end facing the magnetic pole plate 45 but also at the end facing away from the magnetic pole plate 45. The diameter of the opening provided at the end portion on the side opposite to the magnetic pole plate 45 is set larger than the diameter of the opening provided on the side facing the magnetic pole plate 45. Of the speaker frame 10,
The opening on the side opposite the pole plate 45 may optionally be elliptical or may have any other perimeter. In this case, both openings are located substantially concentrically. In this case, the opening on the side facing the magnetic pole plate 45 is denoted by reference numeral 3 in all the drawings.
0, and will be referred to below as the first central opening 30 of the speaker frame 10. The vibrating coil 15 is guided through the opening 30 in the first center. This oscillating coil 15 surrounds the magnetic pole core 35 in the region of the magnetic pole plate 45 and is therefore located in the magnetic field of the magnet system. In this case, the vibrating coil 15 is supplied with a low-frequency audio signal via the connecting element 60 shown in FIG. 1 (not shown in FIG. 3 for the sake of clarity). The centering means 20 is mounted on the stepped portion 75 of the speaker frame 10 which is stepped and formed into a conical shape. This centering means 20 likewise has a substantially central opening with a circular outer circumference for centering the vibrating coil 15 on the speaker frame 10. The vibrating coil 15 includes the centering means 20.
Also, it is guided through a diaphragm provided on the side opposite to the magnet system or an opening in the center of the diaphragm 50, and is connected to the diaphragm 50 there. On the other hand, the outer edge of the diaphragm 50 has a ridge 80,
The speaker frame 10 is coupled to a peripheral edge portion 85 provided at an end portion on the side opposite to the magnet system. The vibrating coil 15 is vibrated in the magnetic field of the magnet system by the low frequency audio signal. In this case, the diaphragm 50, which is coupled to the vibrating coil 15, vibrates together, resulting in an electro-acoustic conversion of the low-frequency electrical audio signal into an acoustic signal. The vibrating coil 15 is covered by a spherical cap 55 at the end opposite to the magnet system in order to prevent dirt or dust from entering the speaker frame 10. Furthermore, the speaker frame 10
Is completely covered by diaphragm 50 and ridge 80. To improve the acoustic properties, the speaker frame 10 can have lateral openings 90, as shown in all figures and in particular in FIG. In this case, basically the same reference numerals in all the drawings characterize the same elements.

Now, according to the present invention, as shown in FIGS. 2 and 3, it is proposed that the above-described speaker frame 10 is formed as the recessed portion 25 in the vehicle component group 5. This vehicle component group 5 is a component group of an arbitrary vehicle, especially an automobile. This group of components may be formed, for example, as a door support plate, a door lining, a door lamella, a cockpit, a rear tray (Hutabrage) or the like. Recessed portion 25 required for incorporating the speaker 1 in the vehicle configuration group 5
As shown in FIGS. 2 and 3, the vehicle component group 5 can be structurally compensated by having the overhanging portion 95 at the location provided for the installation of the speaker 1. The vehicle component group 5 can be formed from a thin plate or plastic. When the vehicle component group 5 is formed of a thin plate, the recess 25 and thus the speaker frame 10 can be realized by appropriately deforming the thin plate. If the vehicle component group 5 is made of plastic, the vehicle component group 5 is in principle produced from an injection mold or a blow mold. In this case, the plastic is poured or blown into the mold in the liquid state. This mold is provided for the vehicle component group 5. In this case, the recess 25 and thus the speaker frame 10 is such that the vehicle component group 5 has the desired recess 25 and thus the speaker frame 10 after the injection molding, casting or blow molding process. It is realized by modifying the molds and thus the injection molds or blow molds used to produce the conventional vehicle components.

In all the cases described above, the speaker frame 10 is integrally connected to the vehicle component group 5 by means of the realization with the recesses 25 and forms the integrated component part of the vehicle component group 5. Therefore, the constituent elements of the speaker 1 shown in FIGS. 1 and 3 can be assembled to the speaker frame 10 or the recessed portion 25 in the above-described format. Therefore, since it is no longer necessary to attach the separate speaker frame 10 to the vehicle component group 5, the speaker frame 10 can be assembled to the vehicle component group 5 with a minimum of effort. This is because, when the speaker frame 10 is incorporated into the vehicle component group 5 by manufacturing the recessed portion 25, an additional work process is unnecessary. In order to manufacture the vehicle component group 5, in order to realize the recessed portion 25,
In the case of the formation of the vehicle component group 5 made of sheet metal, only one correspondingly adapted deformation tool is required, or in the case of the formation of the vehicle component group 5 made of plastic, only the correspondingly adapted deformation tool. Only one injection or blow mold is needed.

The vibrating coil 15 and the centering means 20 form a vibrating insert. The vibrating insert is housed within the speaker frame 10 in the manner previously described. By incorporating the speaker 1 into the recessed portion 25 of the vehicle component group 5 as described above, the magnet system 35 is provided.
, 40, 45 are arranged inside the vehicle constitution group 5, and the vibration inserts 15, 20, the diaphragm 50, the raised portion 80, and the spherical cap 55 are arranged outside the vehicle constitution group 5. . In the example described above, the diaphragm 50 is fixed to the peripheral edge portion 85 via the raised portion 80. Here, the peripheral edge portion 85 is regarded as the recessed portion 25 even though it is not actually provided in the vehicle component group 5 in a recessed shape. However, in this way it is possible to form a perfect analogy between the recess 25 and a conventional speaker frame. In a conventional speaker frame, the diaphragm 50
Appropriately through the raised portions 80, the magnet systems 35, 40, 4 of the speaker frame 10
5 is joined to the peripheral edge portion 85 of the speaker frame 10 shown in FIG. 1, which is arranged at the end portion on the side opposite to 5.

Therefore, as shown in FIG. 3, the vibrating coil 15 is inserted through the diaphragm 50.
Is also connected to the peripheral edge portion 85 and thus to the recessed portion 25. The magnetic pole core 35, the ring-shaped magnet 40, and the magnetic pole plate 45 are form-connected to each other, for example, by screwing or riveting, and force transmission (krafts).
channels). This screwing or rivet fastening is shown in FIG.
The same can be realized by the fixing element 70 shown in FIG. Since the diaphragm 50 is elastically formed, the vibration coil 15 connected to the diaphragm 50 is movably supported and can vibrate. Alternatively, the ridges 80 are elastically formed, whereas the diaphragm 50 is elastically formed only to a very limited extent, thus predominantly the movable bearing of the oscillating coil 15. It may also be proposed that this be done on the basis of the elasticity of the ridges 80. It can also be proposed that the magnetic pole core 35 penetrates substantially the first central opening 30, as shown in FIG. In order to clearly show the installation of the speaker frame 10 in the vehicle structure group 5, FIG. 2 shows only the vehicle structure group 5 including the recessed portion 25 forming the speaker frame 10.

The spherical cap 55 covers the diaphragm 50 to cover the vibration coil 15.
It may be mounted on the diaphragm 50 or may be connected to the diaphragm 50. Instead of the spherical cap 55, a tweeter horn or a tweeter may be installed on the vibrating coil 15 or the diaphragm 50 depending on the intended use of the speaker 1.

In this case, the overhanging portion 95 and the recessed portion 25 shown in FIGS. 2 and 3 can be referred to as a speaker module of the belonging vehicle component group 5, and are integrally connected to the vehicle component group 5. Or it forms a grouped component of the vehicle component group 5.

The magnet system may alternatively be designed as a neodymium magnet system. In this neodymium magnet system, as shown in FIG. 4, the magnetic pole core 100 is formed in a substantially pot shape with the protruding inner base portion 125 spaced from the side wall 120.
In this case, the base 125 does not reach the pot upper edge 135. Base 12
A first magnet plate 105 is mounted on the unit 5. The first magnet plate 105 does not contact the side wall 120 of the pot-shaped magnetic pole core 100. A magnetic pole plate 110 is mounted on the first magnet plate 105. This magnetic pole plate 110 is also a pot-shaped magnetic pole core 1
00 side wall 120 is not in contact. As indicated by the alternate long and short dash line in FIG.
A second magnet plate 115 can be placed on the unit 10. A first magnet plate 105,
The magnetic pole plate 110 and the second magnet plate 115 have, for example, circular outer peripheries.
In this case, the diameter of the magnetic pole plate 110 and the diameter of the first magnet plate 105 are set to be substantially the same, while the diameter of the second magnet plate 115 is set to the neodymium magnet type magnetic pole plate 110. Sized smaller than the diameter of. The magnetic pole plate 110 almost reaches the pot upper edge portion 135 of the magnetic pole core 100, whereas the selectively provided second magnet plate 115 projects beyond the pot upper edge portion 135. In this case, according to FIG. 4, for example, a pot-shaped magnetic pole core 1 also having a substantially circular outer periphery.
The vibration coil 15 projects into the gap 130 formed between the side wall 120 of No. 00, the first magnet plate 105, and the magnetic pole plate 110. As a result, the vibrating coil 15 can vibrate in the above-described form by the low-frequency audio signal when excited in the magnetic field of the neodymium magnet system. The first magnet plate 105, the pole plate 110, and in some cases, the second magnet plate 115 of the neodymium magnet system,
It can be connected to the pot-shaped magnetic pole core 100 in a force-transmitting manner and in a form-fitting manner, for example, by screwing or riveting, and the magnetic pole core 100 is connected to the pot upper edge 1
Similarly, it can be connected to the speaker frame 10 or the recessed portion 25 via 35, for example, by screwing or riveting.

[Brief description of drawings]

[Figure 1]   It is a figure which shows the component of a conventional speaker.

FIG. 2 is a side view of a speaker frame of a speaker according to the present invention incorporated in a vehicle configuration group according to the present invention.

FIG. 3 is a side view of the components of the speaker according to the invention in a speaker frame incorporated in a vehicle assembly according to the invention.

[Figure 4]   FIG. 7 shows a neodymium magnet system with an inserted oscillating coil.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 speaker, 5 vehicle structure group, 10 speaker frame, 15 vibration coil, 20 centering means, 25 recessed portion, 30 opening, 35
Magnetic pole core, 40 ring magnet, 45 magnetic pole plate, 50 diaphragm,
55 spherical surface cap, 60 connecting element, 65 mounting surface, 70 fixing element, 75 stepped portion, 80 raised portion, 85 peripheral portion, 90 opening, 95 overhanging portion, 100 magnetic pole core, 105 magnet plate, 110 magnetic pole plate, 115 magnet Plate, 120 sidewall, 125 base, 130 gap, 135 pot top edge

Claims (11)

[Claims] 1. A speaker (1) arranged in a vehicle component group (5),
In the type in which the speaker frame (10) for accommodating the vibration insert (15, 20) is provided, the vehicle component group (5) has a recessed portion (25), A speaker, wherein the installation portion (25) forms a speaker frame (10). 2. A loudspeaker according to claim 1, wherein the recess (25) is at least partially conical and has a central opening (30). 3. The vehicle component group (in the region of the opening (30) at the center of the recess (25))
The magnet system (35, 40, 45; 100, 105, 110, 115) is arranged in the inside of 5) and is fixed to the recessed portion (25).
100, 105, 110, 115) within the magnetic field formed by
The vibrating coil (15) of (15, 20) is movably supported, and the opening (30)
The speaker according to claim 2, being guided through the speaker. 4. The vibrating insert (15, 20) and the diaphragm (50) are fixed to the recess (25) outside the vehicle component group (5) according to any one of claims 1 to 3. The speaker according to item 1. 5. A vehicle component group (5) having a built-in speaker (1), wherein the vehicle component group (5) has a recess (25), and the recess (25).
1) forms a speaker frame (10) for accommodating the vibration insert (15, 20) of the speaker (1). 6. Vehicle assembly according to claim 5, wherein the recess (25) is at least partially conical and has a central opening (30). 7. A magnet system (35, 40, 45; 100, 105, 110, 115) inside the vehicle component group (5) in the region of the opening (30) at the center of the recess (25).
) Is arranged and fixed to the recessed portion (25), and the magnet system (35, 40,
45; 100, 105, 110, 115), the oscillating coil (15) of the oscillating insert (15, 20) is movably supported in the magnetic field formed by the opening (3
Vehicle group according to claim 6, guided through 0). 8. The vibration insert (15, 20) and the diaphragm (50) are fixed to the recess (25) outside the vehicle component group (5).
The vehicle configuration group according to any one of the items above. 9. Vehicle group (5) according to any one of claims 5 to 8, characterized in that it is formed as a door support plate, a door lining, a door lamella, a cockpit, a rear tray or the like. Described vehicle configuration group. 10. The vehicle component group (5) is formed of a thin plate, and the recessed portion (25) is formed by a deformation process of the thin plate.
The vehicle configuration group according to any one of 1 to 9. 11. The vehicle component group (5) is made of plastic, and the recessed portion (25) is formed by an injection mold or a blow mold. The vehicle configuration group according to any one of 9 to 9.