CN203552545U - Demonstration plate for working principle of electromagnetic relay - Google Patents
Demonstration plate for working principle of electromagnetic relay Download PDFInfo
- Publication number
- CN203552545U CN203552545U CN201320623398.5U CN201320623398U CN203552545U CN 203552545 U CN203552545 U CN 203552545U CN 201320623398 U CN201320623398 U CN 201320623398U CN 203552545 U CN203552545 U CN 203552545U
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- China
- Prior art keywords
- backboard
- contact
- cross bar
- electromagnetic relay
- base
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Abstract
The utility model discloses a demonstration plate for the working principle of an electromagnetic relay, and relates to an improvement of a demonstration teaching aid structure for the working principle of the electromagnetic relay. The utility model provides a demonstration for the working principle of an electromagnetic relay with a visual demonstration effect. The demonstration plate comprises a backboard and is characterized in that the backboard is provided with a base, the base is provided with a vertical rod, the vertical rod is provided with an electromagnet, conducing wires of the electromagnet are led out and fixed on the backboard via first terminals, the outside of the base is provided with an upright rod, and the inner side of the upper part of the upright rod is provided with a cross bar which can move up and down and is driven by an up-and-down driving device. One end of the cross bar is connected with the base via elastic cloth, the other end of the cross bar is provided with a first contact, a second contact and a third contact are respectively arranged above the first contact and below the first contact, the first contact is connected with a second terminal of the backboard via a first connecting line, the second contact is connected with a third terminal of the backboard via a second connecting line, and the third contact is connected with a fourth terminal of the backboard via a third connecting line.
Description
Technical field
the utility model relates to the improvement of electromagnetic relay principle of work demonstration teaching aid structure.
Background technology
at present, electromagnetic relay that junior middle school physics teaching is used demonstration wall chart can be seen the structure of electromagnetic relay clearly, but dynamic change that can not Demonstrating electromagnetic relay principle of work.Multimedia courseware can show the principle of work of electromagnetic relay dynamically, but the actual performance that cannot show electromagnetic relay.
Summary of the invention
the utility model is exactly for the problems referred to above, and a kind of demonstration effect electromagnetic relay principle of work demonstrator is intuitively provided.
for achieving the above object, the utility model adopts following technical scheme, and the utility model comprises backboard, on its structural feature backboard, be provided with base, on base, be provided with montant, be provided with electromagnet on montant, the wire on electromagnet is drawn by the first binding post and is fixed on backboard; Chassis outer side is provided with vertical rod, vertical rod upper inner is provided with the cross bar being driven by up-down drive device moving up and down, cross bar one end is connected with base by elastic cloth, the cross bar other end is provided with the first contact, the first above and below, contact is respectively arranged with the second contact and the 3rd contact, the first contact is connected with the second binding post on backboard by the first connecting line, the second contact is connected with the 3rd binding post on backboard by the second connecting line, and the 3rd contact is connected with the 4th binding post on backboard by the 3rd connecting line.
as a kind of preferred version, up-down drive device described in the utility model comprises and is arranged on backboard motor below, the rotating shaft of motor is connected with train of reduction gears power intake, on the wheel disc of train of reduction gears clutch end gear, be provided with the first axle, on the first axle, cover has the first change, and the first change is connected with connecting rod one end, and the connecting rod other end is provided with the second change, the second change is enclosed within on the second axle of contiguous block, and contiguous block is connected with described cross bar by the vertical bar shape opening on backboard.
as another kind of preferred version, backboard described in the utility model adopts plastic plate, cross bar to adopt plastic bar.
in addition, the thickness of backboard described in the utility model is 1mm.
the utility model beneficial effect.
1, demonstration effect is directly perceived.
the utility model is used in conjunction with by base, montant, electromagnet, vertical rod, cross bar, up-down drive device, elastic cloth, contact, binding post, not only can understand the inner structure of electromagnetic relay, more can clearly see the actual act process of electromagnetic relay clearly.
2, up-down drive device is simple in structure, stable.
the utility model up-down drive device comprises motor, train of reduction gears, the first axle, the first change, the second change, contiguous block, the second axle; Member is less, and guarantees stable operation by the synergy of each parts.
3, lightweight, cost is low.
the utility model backboard adopts plastic plate, cross bar to adopt plastic bar.Plastic material is lightweight, cost is low.
Accompanying drawing explanation
clearer for technical matters, technical scheme and beneficial effect that the utility model is solved, below in conjunction with the drawings and the specific embodiments, the utility model is further elaborated.Should be appreciated that embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
fig. 1 is the utility model structural representation.
fig. 2 is the utility model up-down drive device structural representation.
in figure, 1 for backboard, 2 for elastic cloth, 3 for electromagnet, 4 for base, 5 be the first binding post, 6 be the second binding post, the 3rd binding post, the 4th binding post, 7 be the first contact, 8 for cross bar, 9 for motor, 10 be contiguous block.
Embodiment
as shown in the figure, the utility model comprises backboard, is provided with base on backboard, is provided with montant on base, is provided with electromagnet on montant, and the wire on electromagnet is drawn by the first binding post and is fixed on backboard; Chassis outer side is provided with vertical rod, vertical rod upper inner is provided with the cross bar being driven by up-down drive device moving up and down, cross bar one end is connected with base by elastic cloth, the cross bar other end is provided with the first contact, the first above and below, contact is respectively arranged with the second contact and the 3rd contact, the first contact is connected with the second binding post on backboard by the first connecting line, the second contact is connected with the 3rd binding post on backboard by the second connecting line, and the 3rd contact is connected with the 4th binding post on backboard by the 3rd connecting line.
described up-down drive device comprises and is arranged on backboard motor below, the rotating shaft of motor is connected with train of reduction gears power intake, on the wheel disc of train of reduction gears clutch end gear, be provided with the first axle, on the first axle, cover has the first change, the first change is connected with connecting rod one end, the connecting rod other end is provided with the second change, and the second change is enclosed within on the second axle of contiguous block, and contiguous block is connected with described cross bar by the vertical bar shape opening on backboard.
described backboard adopts plastic plate, cross bar to adopt plastic bar.
the thickness of described backboard is 1mm.
can on elastic cloth, be wound around coarse wool line and imitate spring, the adhesive and the relieving that move up and down imitation armature of cross bar.
be understandable that, above about specific descriptions of the present utility model, only for being described, the utility model is not limited to the described technical scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can modify or be equal to replacement the utility model, to reach identical technique effect; As long as meet, use needs, all within protection domain of the present utility model.
Claims (4)
1. an electromagnetic relay principle of work demonstrator, comprises backboard, it is characterized in that being provided with base on backboard, is provided with montant on base, is provided with electromagnet on montant, and the wire on electromagnet is drawn by the first binding post and is fixed on backboard; Chassis outer side is provided with vertical rod, vertical rod upper inner is provided with the cross bar being driven by up-down drive device moving up and down, cross bar one end is connected with base by elastic cloth, the cross bar other end is provided with the first contact, the first above and below, contact is respectively arranged with the second contact and the 3rd contact, the first contact is connected with the second binding post on backboard by the first connecting line, the second contact is connected with the 3rd binding post on backboard by the second connecting line, and the 3rd contact is connected with the 4th binding post on backboard by the 3rd connecting line.
2. a kind of electromagnetic relay principle of work demonstrator according to claim 1, it is characterized in that described up-down drive device comprises is arranged on backboard motor below, the rotating shaft of motor is connected with train of reduction gears power intake, on the wheel disc of train of reduction gears clutch end gear, be provided with the first axle, on the first axle, cover has the first change, the first change is connected with connecting rod one end, the connecting rod other end is provided with the second change, the second change is enclosed within on the second axle of contiguous block, and contiguous block is connected with described cross bar by the vertical bar shape opening on backboard.
3. a kind of electromagnetic relay principle of work demonstrator according to claim 1, is characterized in that described backboard adopts plastic plate, cross bar to adopt plastic bar.
4. a kind of electromagnetic relay principle of work demonstrator according to claim 1, the thickness that it is characterized in that described backboard is 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320623398.5U CN203552545U (en) | 2013-10-11 | 2013-10-11 | Demonstration plate for working principle of electromagnetic relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320623398.5U CN203552545U (en) | 2013-10-11 | 2013-10-11 | Demonstration plate for working principle of electromagnetic relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203552545U true CN203552545U (en) | 2014-04-16 |
Family
ID=50470628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320623398.5U Expired - Fee Related CN203552545U (en) | 2013-10-11 | 2013-10-11 | Demonstration plate for working principle of electromagnetic relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203552545U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114495659A (en) * | 2022-01-27 | 2022-05-13 | 生本科技(浙江)有限公司 | DIY electromagnetic relay demonstration teaching aid |
-
2013
- 2013-10-11 CN CN201320623398.5U patent/CN203552545U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114495659A (en) * | 2022-01-27 | 2022-05-13 | 生本科技(浙江)有限公司 | DIY electromagnetic relay demonstration teaching aid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20141011 |
|
| EXPY | Termination of patent right or utility model |