JPH0326198U - - Google Patents
Info
- Publication number
- JPH0326198U JPH0326198U JP8779689U JP8779689U JPH0326198U JP H0326198 U JPH0326198 U JP H0326198U JP 8779689 U JP8779689 U JP 8779689U JP 8779689 U JP8779689 U JP 8779689U JP H0326198 U JPH0326198 U JP H0326198U
- Authority
- JP
- Japan
- Prior art keywords
- metal case
- cavity
- diaphragm
- acoustic transducer
- electromagnetic acoustic
- 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
- 239000002184 metal Substances 0.000 claims description 4
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Description
第１図は本考案による電磁音響変換器の一実施
例を示す縦断面図、第２図は第１図のＡ−Ａ断面
図、第３図ないし第６図は従来の電磁音響変換器
の各例を示す縦断面図である。
１……金属ケース、２……ポール、３……ヨー
ク、４……巻線、５……永久磁石、６……樹脂製
リング、７……振動板、８……空洞、９……開口
部、１４……突起。
Fig. 1 is a longitudinal sectional view showing an embodiment of the electromagnetic acoustic transducer according to the present invention, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Figs. 3 to 6 show a conventional electroacoustic transducer. It is a longitudinal cross-sectional view showing each example. 1... Metal case, 2... Pole, 3... Yoke, 4... Winding wire, 5... Permanent magnet, 6... Resin ring, 7... Vibration plate, 8... Cavity, 9... Opening Section 14...Protrusion.
Claims (1)
金属ケースの前記空洞を形成した部分に音声出口
となる開口部を設けた電磁音響変換器において、
金属ケースの側面に内方に突出した３個以上の突
起を形成し、該各突起により振動板の周囲を係止
したことを特徴とする電磁音響変換器。 An electromagnetic acoustic transducer in which a cavity is formed between a diaphragm and a metal case, and an opening serving as an audio outlet is provided in a portion of the metal case where the cavity is formed,
An electromagnetic acoustic transducer characterized in that three or more protrusions projecting inward are formed on the side surface of a metal case, and each protrusion locks the periphery of a diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8779689U JPH0326198U (en) | 1989-07-25 | 1989-07-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8779689U JPH0326198U (en) | 1989-07-25 | 1989-07-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0326198U true JPH0326198U (en) | 1991-03-18 |
Family
ID=31637436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8779689U Pending JPH0326198U (en) | 1989-07-25 | 1989-07-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0326198U (en) |
-
1989
- 1989-07-25 JP JP8779689U patent/JPH0326198U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0326198U (en) | ||
| JPH01153796U (en) | ||
| JPS62193392U (en) | ||
| JPH01135896U (en) | ||
| JPH01107298U (en) | ||
| JPS62155597U (en) | ||
| JPH0170493U (en) | ||
| JPS63153698U (en) | ||
| JPS58596U (en) | microphone | |
| JPH0226898U (en) | ||
| JPH0268596U (en) | ||
| JPH0257699U (en) | ||
| JPH02120998U (en) | ||
| JPS6219899U (en) | ||
| JPS61206397U (en) | ||
| JPS61182198U (en) | ||
| JPH0236298U (en) | ||
| JPS6399494U (en) | ||
| JPH0370072U (en) | ||
| JPS61206398U (en) | ||
| JPH0357699U (en) | ||
| JPH048599U (en) | ||
| JPH01126796U (en) | ||
| JPS59159098U (en) | Electromagnetic acoustic transducer | |
| JPH02104000U (en) |