CN2777671Y - Density type demonstration solenoid - Google Patents
Density type demonstration solenoid Download PDFInfo
- Publication number
- CN2777671Y CN2777671Y CN 200520017433 CN200520017433U CN2777671Y CN 2777671 Y CN2777671 Y CN 2777671Y CN 200520017433 CN200520017433 CN 200520017433 CN 200520017433 U CN200520017433 U CN 200520017433U CN 2777671 Y CN2777671 Y CN 2777671Y
- Authority
- CN
- China
- Prior art keywords
- solenoid
- density type
- coil
- type demonstration
- cylinder
- 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.)
- Expired - Fee Related
Links
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- Electromagnets (AREA)
Abstract
The utility model relates to a teaching appliance, particularly a density type demonstration solenoid used for physical teaching experiment. The density type demonstration solenoid is composed of a conductor wire with an insulating coat and a non-metal cylinder with both open ends, wherein the conductor wire is coiled on the non-metal cylinder. The density type demonstration solenoid is mainly characterized in that the upper coiling of the cylinder is dense, and the lower coiling is loose.
Description
Affiliated technical field
The utility model relates to a kind of instruments used for education, the solenoid that especially a kind of physics teaching experiment is used.
Background technology
Traditional teaching is very close around getting with solenoid coil, when particularly being used for demonstration " spinulose tree fern time law experiment ", the student do not see coil on Chu's solenoid around to, and the coil on the solenoid is around dredging, then the number of turn of coil very little, the induction current that produces during experiment is too little again, and the student does not see the direction of ammeter pointer deflection.
Summary of the invention
The purpose of this utility model provides a kind of when demonstration " spinulose tree fern time law experiment ", can allow the student see coil winding-direction on the solenoid clearly, can make the bigger induction current of generation in the experiment again, and the pointer of reometer is had than wide-angle deflection.
The utility model is achieved like this: very close around getting at solenoidal top coil, the number of turn is a lot, and very thin around getting at solenoidal lower part coil.
Owing to adopt such scheme, during with its demonstration " Lenz law experiment " student just can see clearly coil on the solenoid around to, the while also can be seen the yawing moment of pointer on the reometer clearly.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.Shown in the accompanying drawing is synoptic diagram of the present utility model, and (1) shown in the figure is cylinder, and (2) are coils.
Embodiment
Cylinder (1) is made with plastics or cardboard, and two ends of cylinder are opening, is wrapped on the cylinder with a lead that has insulating outer layer again, and is very close around getting on top, and very thin around getting in the bottom.Use again bonding agent coil location on cylinder.
Claims (1)
- A kind of density type demonstration solenoid, it is made of the cylinder and the coil on cylinder of one two end opening, and it is characterized in that: the coil on solenoid top is very close around getting, the coil of bottom is then very thin around getting, and the spacing around between the every circle coil of the part that must dredge is between 1 centimetre to 7 centimetres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520017433 CN2777671Y (en) | 2005-04-20 | 2005-04-20 | Density type demonstration solenoid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520017433 CN2777671Y (en) | 2005-04-20 | 2005-04-20 | Density type demonstration solenoid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2777671Y true CN2777671Y (en) | 2006-05-03 |
Family
ID=36745051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520017433 Expired - Fee Related CN2777671Y (en) | 2005-04-20 | 2005-04-20 | Density type demonstration solenoid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2777671Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106544487A (en) * | 2016-10-20 | 2017-03-29 | 浙江欧迪恩传动科技股份有限公司 | A kind of tripod universal joint alley annealing device and heat treatment method |
-
2005
- 2005-04-20 CN CN 200520017433 patent/CN2777671Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106544487A (en) * | 2016-10-20 | 2017-03-29 | 浙江欧迪恩传动科技股份有限公司 | A kind of tripod universal joint alley annealing device and heat treatment method |
| CN106544487B (en) * | 2016-10-20 | 2018-07-13 | 浙江欧迪恩传动科技股份有限公司 | A kind of tripod universal joint alley annealing device and heat treatment method |
| US10487371B2 (en) | 2016-10-20 | 2019-11-26 | Zhejiang ODM Transmission Technology Co., Ltd | Tripod universal joint fairway heat treatment device and heat treatment method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |