JPH02120995U - - Google Patents
Info
- Publication number
- JPH02120995U JPH02120995U JP2813589U JP2813589U JPH02120995U JP H02120995 U JPH02120995 U JP H02120995U JP 2813589 U JP2813589 U JP 2813589U JP 2813589 U JP2813589 U JP 2813589U JP H02120995 U JPH02120995 U JP H02120995U
- Authority
- JP
- Japan
- Prior art keywords
- back cavity
- liquid crystal
- speaker
- crystal polymer
- injection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920000106 Liquid crystal polymer Polymers 0.000 claims 6
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 claims 6
- 238000002347 injection Methods 0.000 claims 2
- 239000007924 injection Substances 0.000 claims 2
- 238000001746 injection moulding Methods 0.000 claims 2
- 229910010272 inorganic material Inorganic materials 0.000 claims 1
- 239000011147 inorganic material Substances 0.000 claims 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
Description
第１図乃至第３図は本考案に係るスピーカのバ
ツクキヤビテイの実施例を示し、第１図はスピー
カユニツトへの取付状態を示す断面図、第２図Ａ
，Ｂはバツクキヤビテイの拡大断面図、第３図Ａ
〜Ｃはバツクキヤビテイの内部に設けられるリブ
を示す平面図である。
ＳＹ……スピーカユニツト、１……振動板、２
……ボイスコイル、３……磁気回路、４……バツ
クキヤビテイ、４ａ……分子配向層、４ｂ……フ
イブリル層、５……リブ、６……カーボンフアイ
バ、７……吸音材。
1 to 3 show an embodiment of the back cavity of the speaker according to the present invention, FIG. 1 is a sectional view showing how it is attached to the speaker unit, and FIG. 2A
,B is an enlarged sectional view of the back cavity, Fig. 3A
-C are plan views showing ribs provided inside the back cavity. SY...Speaker unit, 1...Diaphragm, 2
... Voice coil, 3 ... Magnetic circuit, 4 ... Back cavity, 4a ... Molecular orientation layer, 4b ... Fibril layer, 5 ... Rib, 6 ... Carbon fiber, 7 ... Sound absorbing material.
Claims (1)
テイにおいて、 バツクキヤビテイを液晶ポリマーで射出成形す
ることにより該射出成形時の圧力勾配により液晶
ポリマーの分子を射出方向に配向させたことを特
徴とするスピーカのバツクキヤビテイ。 ２ 液晶ポリマーに無機質材が添加され、射出成
形されたバツクキヤビテイが液晶ポリマーの分子
配向層と無機質層と液晶ポリマーの分子配向層と
の三層構造をなしていることを特徴とする請求項
１記載のスピーカのバツクキヤビテイ。 ３ スピーカの背面音圧を遮断するバツクキヤビ
テイにおいて、 バツクキヤビテイの外表面形状が半球状をなし
ており、内部に、同心円状、井桁状、放射状又は
これらを組合せた形状のリブを備えていることを
特徴とするスピーカのバツクキヤビテイ。 ４ バツクキヤビテイが液晶ポリマーにより射出
成形されると共に内部のリブが一体成形されてい
ることを特徴とする請求項３記載のスピーカのバ
ツクキヤビテイ。[Claims for Utility Model Registration] 1. In a back cavity that shields sound pressure from the back of a speaker, by injection molding the back cavity with a liquid crystal polymer, the molecules of the liquid crystal polymer are oriented in the injection direction by the pressure gradient during the injection molding. The back cavity of the speaker is characterized by 2. Claim 1, wherein an inorganic material is added to the liquid crystal polymer, and the injection-molded back cavity has a three-layer structure of a liquid crystal polymer molecular alignment layer, an inorganic layer, and a liquid crystal polymer molecular alignment layer. back cavity of the speaker. 3. The back cavity that blocks sound pressure from the back of the speaker is characterized in that the outer surface of the back cavity has a hemispherical shape, and the inside is provided with ribs in the shape of concentric circles, cross-shaped, radial, or a combination thereof. back cavity of the speaker. 4. The back cavity of a speaker according to claim 3, wherein the back cavity is injection molded from a liquid crystal polymer and the internal ribs are integrally molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2813589U JPH02120995U (en) | 1989-03-14 | 1989-03-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2813589U JPH02120995U (en) | 1989-03-14 | 1989-03-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02120995U true JPH02120995U (en) | 1990-10-01 |
Family
ID=31251242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2813589U Pending JPH02120995U (en) | 1989-03-14 | 1989-03-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02120995U (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6144986B2 (en) * | 1980-06-07 | 1986-10-06 | Takehiro Mokuzai Kogyo Kk | |
| JPS623191B2 (en) * | 1981-06-26 | 1987-01-23 | Matsushita Electronics Corp | |
| JPS62149296A (en) * | 1985-09-13 | 1987-07-03 | Mitsubishi Electric Corp | Manufacture of speaker diaphragm |
| JPS62202699A (en) * | 1985-11-22 | 1987-09-07 | Mitsubishi Electric Corp | Manufacture of speaker diaphragm |
-
1989
- 1989-03-14 JP JP2813589U patent/JPH02120995U/ja active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6144986B2 (en) * | 1980-06-07 | 1986-10-06 | Takehiro Mokuzai Kogyo Kk | |
| JPS623191B2 (en) * | 1981-06-26 | 1987-01-23 | Matsushita Electronics Corp | |
| JPS62149296A (en) * | 1985-09-13 | 1987-07-03 | Mitsubishi Electric Corp | Manufacture of speaker diaphragm |
| JPS62202699A (en) * | 1985-11-22 | 1987-09-07 | Mitsubishi Electric Corp | Manufacture of speaker diaphragm |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH02120995U (en) | ||
| JPS6336973U (en) | ||
| JPH0751211B2 (en) | Vent and manufacturing method thereof | |
| JPS6264098U (en) | ||
| JPH01126794U (en) | ||
| JPS6133596U (en) | piezoelectric sound device | |
| JPS6434559U (en) | ||
| JPS61140818U (en) | ||
| JPH0344997U (en) | ||
| JPS63160845U (en) | ||
| JPS62189188U (en) | ||
| JPH01119297U (en) | ||
| JPH0286719U (en) | ||
| JPH0483631U (en) | ||
| JPH01156221U (en) | ||
| JPH02894U (en) | ||
| JPS6338495U (en) | ||
| JPS63113282U (en) | ||
| JPH0180903U (en) | ||
| JPH0352373U (en) | ||
| JPS6432119U (en) | ||
| JPH02147995U (en) | ||
| JPH0232297U (en) | ||
| JPH0477414U (en) | ||
| JPS6416796U (en) |