JP3148196U - Ceramic speaker - Google Patents

Abstract

[Problem] To provide a ceramic speaker that is extremely easy to bond between a ceramic exterior part and a speaker unit and has excellent jointability, and that the ceramic exterior part functions as a resonator, has extremely high acoustic performance, and can be manufactured at low cost. To do. A ceramic speaker (1) has a ceramic exterior part (2) and a speaker unit (3) attached to the ceramic exterior part (2), and the speaker unit (3) is sandwiched with a double-sided adhesive tape (4). It is joined to. For this reason, the ceramic exterior part 2 and the speaker unit 3 are extremely easy to join and have excellent joining properties, and the ceramic exterior part 2 functions as a resonator to produce an extremely high and inexpensive ceramic speaker. it can. [Selection] Figure 2

Description

  The present invention relates to a ceramic speaker in which the exterior portion of the speaker is formed of a ceramic material.

Conventionally, a ceramic speaker in which the exterior portion of the speaker is formed of a ceramic material has been proposed (for example, Japanese Patent Application Laid-Open No. 48-66825).
The ceramic material itself has high acoustic performance, is highly moldable, and can provide interior properties, but has a difficulty in bonding with other components and dissimilar materials. For this reason, conventional ceramic speakers have been produced mainly in the field of high-end speakers by increasing the dimensional accuracy of ceramic materials.

In recent years, technology that allows easy listening to music from portable music players, personal computers, etc. has been developed, and compact and inexpensive speaker units (for example, passive speakers or active speakers) that can be connected to these devices have been provided. Ceramic speakers incorporating this speaker unit have also been proposed.
JP-A 48-66825

  However, the ceramic speaker incorporating this speaker unit has a difficulty in bonding between the ceramic exterior part and the speaker unit, the ceramic exterior part does not function as a resonator, and the acoustic performance is extremely low. . Specifically, in this ceramic speaker, the speaker unit is joined to the ceramic exterior part by screwing or fitting, and the both are sufficiently joined due to variations in the dimensions of the ceramic exterior part. Therefore, the ceramic exterior part did not function as a resonator and the acoustic performance was extremely low.

  Therefore, the problem of the present invention is that the ceramic exterior part and the speaker unit are extremely easy to join and have excellent joining properties, and the ceramic exterior part functions as a resonator, so that the acoustic performance is extremely high and can be manufactured at low cost. The purpose is to provide ceramic speakers.

  What solves the said subject has a ceramic exterior part and the speaker unit attached to this ceramic exterior part, and the said speaker unit is joined to the said ceramic exterior part via the double-sided adhesive tape This is a ceramic speaker.

  The double-sided pressure-sensitive adhesive tape preferably has a sponge layer. The speaker unit is preferably a passive speaker. It is preferable that the ceramic exterior portion has a hollow portion, and the speaker unit is joined to an opening of the hollow portion.

According to the first aspect of the present invention, a ceramic speaker that is easy to join the ceramic exterior part and the speaker unit and has excellent jointability, and that the ceramic exterior part functions as a resonator and has extremely high acoustic performance. Can be manufactured at low cost.
According to the second aspect of the present invention, a ceramic speaker having higher acoustic performance is obtained.
According to the invention described in claim 3, a ceramic speaker using a portable music player or a personal computer as a sound source can be manufactured at a very low cost.
According to the invention described in claim 4, the ceramic speaker has higher acoustic performance.

  The ceramic speaker of the present invention is excellent in the bondability between the ceramic exterior part and the speaker unit by using double-sided adhesive tape to join the ceramic exterior part and the speaker unit, and the ceramic exterior part functions as a resonator. As a result, a ceramic speaker with extremely high acoustic performance and low cost can be realized.

  1 is a front view of an embodiment of a ceramic speaker according to the present invention, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, and FIG. 3 is a plan view of the ceramic speaker shown in FIG. 4 is a cross-sectional view taken along line BB in FIG. 3, and FIG. 5 is a vertical cross-sectional view of a double-sided adhesive tape used in the ceramic speaker shown in FIG.

  As shown in FIG. 2, the ceramic speaker 1 of this embodiment has a ceramic exterior part 2 and a speaker unit 3 attached to the ceramic exterior part 2, and the speaker unit 3 has a double-sided adhesive tape 4. The ceramic speaker is characterized in that the speaker is joined to the ceramic exterior portion 2 through the ceramic speaker. Hereinafter, each configuration will be described in detail.

  The ceramic exterior part 2 is a part that functions as a resonator and enhances the interior as a figurine, and is formed by molding a ceramic raw material into a desired form, followed by drying, glazing, and firing processes. Although the ceramic exterior part 2 of this embodiment is molded into a pig mimicry, the present invention is not limited to this, and any form is included in the scope of the present invention.

  A hollow portion 5 is provided inside the ceramic exterior portion 2, and sound is transmitted into the hollow portion 5 to act as a resonator so as to enhance the acoustic performance. Further, an opening 6 is provided in a lower part (lower side in FIG. 2) of the ceramic exterior part 2 (cavity part 5), and the speaker unit 3 is attached so as to cover the opening 6 to provide a cavity. The sound spreads in the part 5 and the acoustic performance can be further enhanced as a resonator.

  Further, a cord lead-out hole 8 for leading the cord 7 of the speaker unit 3 to the outside is provided in the rear portion (right side in FIG. 2) of the ceramic exterior portion 2. And the code | cord | chord 7 is made into the form which recalls the tail of a pig, when the code | cord | chord 7 is derived | led-out from this code | cord | chord derivation hole 8. FIG.

  The speaker unit 3 is for generating sound in the ceramic speaker 1, and in this embodiment, a passive speaker is used. This passive speaker is a speaker unit that uses the amplifier function and driving energy of a sound source device (portable music player, personal computer, etc.), and a stereo mini plug 9 provided at the tip of the cord 7 is used as a stereo headphone terminal of the sound source device. It is configured so that sound can be generated as a speaker simply by operating the plug-in sound source device. The ceramic speaker of the present invention is mainly manufactured as a speaker for portable music players, personal computers, etc., and this passive speaker is preferable as the speaker unit, but it is not necessarily limited to this. Any device can be used as long as it can be connected to a device and can generate sound. For example, an active speaker (a general speaker with a built-in power amplifier) is also included in the scope of the present invention. The

  In the ceramic speaker 1, as shown in FIGS. 2 to 4, the ceramic exterior portion 2 and the speaker unit 3 are joined via a double-sided adhesive tape 4. As a result, it is not necessary to form a screw-in structure or a fitting structure that requires a high dimensional accuracy in the ceramic exterior part, and it is possible to join the speaker unit very easily and inexpensively, and also in terms of joinability. An excellent ceramic exterior works as a resonator, making it possible to produce ceramic speakers with extremely high acoustic performance and low cost.

  Specifically, in this embodiment, as shown in FIG. 3, four double-sided adhesive tapes 4 are attached to the edge portion 10 forming the opening 6, and the speaker is attached to these double-sided adhesive tapes 4 from below. The unit 3 is pressed and joined. In this way, the ceramic exterior part and the speaker unit in the ceramic speaker of the present invention are extremely easy to join, and the speaker unit does not come off under normal usage due to the technical progress of double-sided adhesive tape. It can be made strong. On the other hand, when the speaker unit is replaced due to a failure, for example, it can be removed using, for example, a screwdriver, and maintenance is easy. In this embodiment, the double-sided pressure-sensitive adhesive tape 4 is interspersed with the edge portion 10 that forms the opening 6, but the entire edge portion 9 is attached with an annular double-sided pressure-sensitive adhesive tape to join the speaker unit. May be.

  The double-sided adhesive tape may be anything as long as it has strong adhesiveness that does not cause the speaker unit to come off under normal usage, but in this embodiment, Nichiban Co., Ltd. (Registered trademark) is used.

  Further, as shown in FIG. 5, the double-sided pressure-sensitive adhesive tape 4 includes a release paper layer 4a, adhesive layers 4b and 4c, and a base material layer 4d between the adhesive layers 4b and 4c. Is preferably composed of a sponge layer (foamed polyethylene layer in this embodiment). Thereby, the sponge layer 4d plays the buffer function of the ceramic exterior part 2 and the speaker unit 3 which are different materials, and can produce the ceramic speaker with extremely high acoustic performance.

  As described above, the present invention solves the long-standing concern (difficulty of joining the ceramic exterior part and the speaker unit) of ceramic materials, which have been regarded as a material with high acoustic performance, by extremely simple means. As a result, a ceramic speaker that is inexpensive and has extremely high acoustic performance is realized.

It is a front view of one Example of the ceramic speaker of this invention. It is the sectional view on the AA line of FIG. It is a top view of the ceramic speaker shown in FIG. FIG. 4 is a sectional view taken along line BB in FIG. 3. It is a longitudinal cross-sectional view of the double-sided adhesive tape used with the ceramic speaker shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ceramic speaker 2 Ceramic exterior part 3 Speaker unit 4 Double-sided adhesive tape 5 Cavity part 6 Opening part 7 Code 8 Cord lead-out hole 9 Stereo mini plug 10 Edge part

Claims (4)

A ceramic speaker comprising a ceramic exterior part and a speaker unit attached to the ceramic exterior part, wherein the speaker unit is joined to the ceramic exterior part via a double-sided adhesive tape . The ceramic speaker according to claim 1, wherein the double-sided adhesive tape has a sponge layer. The ceramic speaker according to claim 1 or 2, wherein the speaker unit is a passive speaker. The ceramic speaker according to any one of claims 1 to 3, wherein the ceramic exterior portion has a hollow portion, and the speaker unit is joined to an opening of the hollow portion.

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