JPS54112046A - Induction heating device - Google Patents
Induction heating deviceInfo
- Publication number
- JPS54112046A JPS54112046A JP1948178A JP1948178A JPS54112046A JP S54112046 A JPS54112046 A JP S54112046A JP 1948178 A JP1948178 A JP 1948178A JP 1948178 A JP1948178 A JP 1948178A JP S54112046 A JPS54112046 A JP S54112046A
- Authority
- JP
- Japan
- Prior art keywords
- coils
- concave
- convex
- external surface
- sound produced
- 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
Landscapes
- General Induction Heating (AREA)
- Furnace Details (AREA)
Abstract
PURPOSE: To reduce noise of an induction heating device, by making the external surface of an induction coil convex and concave alternatively so that the distance between the convex and concave surface is equal to half-wavelength of sound produced by the device for canceling the noise.
CONSTITUTION: The external surface of an inner cylinder 1 is wound up with the same type of induction coils 3, 4 being applied convex and concave alternatively along the length of the cylinder. The difference l between the external surface of the coils 3, 4 is equal to half-wavelength of sound produced by the frequency twice the power voltage. This makes the sound produced by by coils 3, 4 canceled each other, thus reducing the noise of the coils.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53019481A JPS5845791B2 (en) | 1978-02-21 | 1978-02-21 | induction heating device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53019481A JPS5845791B2 (en) | 1978-02-21 | 1978-02-21 | induction heating device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54112046A true JPS54112046A (en) | 1979-09-01 |
JPS5845791B2 JPS5845791B2 (en) | 1983-10-12 |
Family
ID=12000525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53019481A Expired JPS5845791B2 (en) | 1978-02-21 | 1978-02-21 | induction heating device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5845791B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6126788U (en) * | 1984-07-25 | 1986-02-18 | 東京瓦斯株式会社 | Side hole drilling equipment |
-
1978
- 1978-02-21 JP JP53019481A patent/JPS5845791B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5845791B2 (en) | 1983-10-12 |
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