DE2400974B1 - Mfr. of electroacoustic driver unit - has coil welded by current pulse united by injection moulding to coil body and diaphragm - Google Patents
Mfr. of electroacoustic driver unit - has coil welded by current pulse united by injection moulding to coil body and diaphragmInfo
- Publication number
- DE2400974B1 DE2400974B1 DE2400974A DE2400974A DE2400974B1 DE 2400974 B1 DE2400974 B1 DE 2400974B1 DE 2400974 A DE2400974 A DE 2400974A DE 2400974 A DE2400974 A DE 2400974A DE 2400974 B1 DE2400974 B1 DE 2400974B1
- Authority
- DE
- Germany
- Prior art keywords
- coil
- bobbin
- welded
- membrane
- grooves
- 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.)
- Granted
Links
- 238000001746 injection moulding Methods 0.000 title claims 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract 6
- 229920003023 plastic Polymers 0.000 claims abstract 5
- 239000004033 plastic Substances 0.000 claims abstract 5
- 238000010438 heat treatment Methods 0.000 claims abstract 4
- 238000000034 method Methods 0.000 claims abstract 4
- 229910052742 iron Inorganic materials 0.000 claims abstract 3
- 238000002347 injection Methods 0.000 claims abstract 2
- 239000007924 injection Substances 0.000 claims abstract 2
- 238000003466 welding Methods 0.000 claims abstract 2
- 239000012528 membrane Substances 0.000 claims 8
- 238000004519 manufacturing process Methods 0.000 claims 2
- 230000007704 transition Effects 0.000 claims 2
- 239000006223 plastic coating Substances 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K13/00—Cones, diaphragms, or the like, for emitting or receiving sound in general
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Electromagnetism (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2400974A DE2400974B1 (en) | 1974-01-10 | 1974-01-10 | Mfr. of electroacoustic driver unit - has coil welded by current pulse united by injection moulding to coil body and diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2400974A DE2400974B1 (en) | 1974-01-10 | 1974-01-10 | Mfr. of electroacoustic driver unit - has coil welded by current pulse united by injection moulding to coil body and diaphragm |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2400974B1 true DE2400974B1 (en) | 1975-06-19 |
| DE2400974A1 DE2400974A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-06-19 |
| DE2400974C2 DE2400974C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1976-02-05 |
Family
ID=5904455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2400974A Granted DE2400974B1 (en) | 1974-01-10 | 1974-01-10 | Mfr. of electroacoustic driver unit - has coil welded by current pulse united by injection moulding to coil body and diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2400974B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
-
1974
- 1974-01-10 DE DE2400974A patent/DE2400974B1/de active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE2400974A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-06-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| E77 | Valid patent as to the heymanns-index 1977 | ||
| EGA | New person/name/address of the applicant | ||
| 8339 | Ceased/non-payment of the annual fee |