CN201993955U - Bridge-type rectifying teaching demonstration device - Google Patents
Bridge-type rectifying teaching demonstration device Download PDFInfo
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- CN201993955U CN201993955U CN2011200141105U CN201120014110U CN201993955U CN 201993955 U CN201993955 U CN 201993955U CN 2011200141105 U CN2011200141105 U CN 2011200141105U CN 201120014110 U CN201120014110 U CN 201120014110U CN 201993955 U CN201993955 U CN 201993955U
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- bridge
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- 230000009466 transformation Effects 0.000 claims abstract description 11
- 230000005611 electricity Effects 0.000 abstract description 2
- 230000005389 magnetism Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010011878 Deafness Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Abstract
A bridge-type rectifying teaching demonstration device belongs to the technical field of electricity or magnetism groups, and particularly relates to the bridge-type rectifying teaching demonstration device. The bridge-type rectifying teaching demonstration device achieves intuitional instruction, is easy to understand, and has a simple structure. The bridge-type rectifying teaching demonstration device comprises a base and has the structural key points as follows: a voltage transformation rectification circuit is arranged inside the base; a standing plate is arranged on the base; an ammeter, a double-pole double throw switch, a first LED (light-emitting diode) and a rectifier bridge comprising four second LEDs are arranged on the standing plate; the voltage transformation rectification circuit is connected with an input end of the rectifier bridge through the double-pole double throw switch and the ammeter sequentially; and an output end of the rectifier bridge is connected with the first LED.
Description
Technical field
The utility model is divided by International Patent Classification (IPC) (I P C) and is belonged to physical department, education; Cryptology; Show; Advertisement; The big class of seal, education or demonstration equipment; Be used to the apparatus of imparting knowledge to students or communicating by letter with blind person, deaf person or mute; Model; Planetarium; Terrestrial globe; Map; The figure watch group, the model that science, medical science or mathematics are used, the device with full-size(d) that for example is used to demonstrate is organized greatly, and the little technical group field of electricity or magnetics relates in particular to a kind of bridge rectifier teaching demonstration device.
Background technology
In the existing teaching process for bridge rectifier circuit, the student can only learn by books, because this mode of learning is comparatively abstract, the student is difficult to grasp for the problems such as the flow direction of electric current in the bridge rectifier circuit, and teaching efficiency is bad.
Summary of the invention
The utility model is exactly at the problems referred to above, and a kind of directly perceived, easy to understand and bridge rectifier teaching demonstration device simple in structure of imparting knowledge to students is provided.
For achieving the above object, the utility model adopts following technical scheme, the utility model comprises base, be provided with the transformation rectification circuit in its structural feature base, base is provided with riser, the rectifier bridge that riser is provided with reometer, double-point double-throw switch, first light emitting diode and is made up of four second light emitting diodes; Described transformation rectification circuit links to each other with the input end of rectifier bridge by double-point double-throw switch, reometer successively, and the output terminal of rectifier bridge links to each other with first light emitting diode.
The utility model beneficial effect
1, directly perceived, the easy to understand of teaching
Be provided with the transformation rectification circuit in the utility model base, base is provided with riser, the rectifier bridge that riser is provided with reometer, double-point double-throw switch, first light emitting diode and is made up of four second light emitting diodes; Described transformation rectification circuit links to each other with the input end of rectifier bridge by double-point double-throw switch, reometer successively, and the output terminal of rectifier bridge links to each other with first light emitting diode; By double-point double-throw switch the input end of rectifier bridge is exchanged mutually, thereby just can simulate the positive half cycle and the negative half period that exchange input, two group of second light emitting diode alternate conduction is luminous, can observe out forward and reverse variation of electric current by reometer, and the conducting all the time of first light emitting diode is luminous in this process, thereby makes the student understand the effect and the principle of bridge rectifier intuitively.So directly perceived, easy to understand of the utility model teaching.
2, simple in structure
The utility model mainly comprises transformation rectification circuit, reometer, double-point double-throw switch, light emitting diode; Member is few, connection is simple, so the utility model is simple in structure.
Description of drawings
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 only in order to explanation the utility model, and be not used in qualification the utility model.
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model circuit theory diagrams;
Among the figure, 1 is that base, 2 is that double-point double-throw switch, 3 is that first light emitting diode, 4 is that second light emitting diode, 5 is that reometer, 6 is riser.
Embodiment
As shown in the figure, the utility model comprises base 1, be provided with the transformation rectification circuit in the base 1, base 1 is provided with riser 6, the rectifier bridge that riser 6 is provided with reometer 5, double-point double-throw switch 2, first light emitting diode 3 and is made up of four second light emitting diodes 4; Described transformation rectification circuit links to each other with the input end of rectifier bridge by double-point double-throw switch 2, reometer 5 successively, and the output terminal of rectifier bridge links to each other with first light emitting diode 3.
Below in conjunction with course of action of description of drawings the utility model
At first, energized, the luminous situation of observing luminous and first light emitting diode 3 of any two second light emitting diodes 4 of yawing moment, rectifier bridge of reometer 5; Then, stir double-point double-throw switch 2, the input end of rectifier bridge is exchanged mutually, observed the luminous situation of luminous and first light emitting diode 3 of any two second light emitting diodes 4 of yawing moment, rectifier bridge of reometer 5 again, just can understand the effect and the principle of bridge rectifier thus intuitively.
Above content is to further describing that the utility model is done in conjunction with concrete preferred implementation; can not assert that concrete enforcement of the present utility model is confined to these explanations; for the utility model person of an ordinary skill in the technical field; under the prerequisite that does not break away from the utility model design; can also make some simple deduction or replace, all should be considered as belonging to the definite protection domain of claims that the utility model is submitted to.
Claims (1)
1. bridge rectifier teaching demonstration device, comprise base (1), it is characterized in that being provided with the transformation rectification circuit in the base (1), base (1) is provided with riser (6), the rectifier bridge that riser (6) is provided with reometer (5), double-point double-throw switch (2), first light emitting diode (3) and is made up of four second light emitting diodes (4); Described transformation rectification circuit links to each other with the input end of rectifier bridge by double-point double-throw switch (2), reometer (5) successively, and the output terminal of rectifier bridge links to each other with first light emitting diode (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200141105U CN201993955U (en) | 2011-01-18 | 2011-01-18 | Bridge-type rectifying teaching demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200141105U CN201993955U (en) | 2011-01-18 | 2011-01-18 | Bridge-type rectifying teaching demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201993955U true CN201993955U (en) | 2011-09-28 |
Family
ID=44670436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200141105U Expired - Fee Related CN201993955U (en) | 2011-01-18 | 2011-01-18 | Bridge-type rectifying teaching demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201993955U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102903285A (en) * | 2012-10-16 | 2013-01-30 | 长春工业大学 | Demonstration instrument for addition and subtraction characteristics of electrical bridge |
| CN103123756A (en) * | 2011-11-18 | 2013-05-29 | 四川蓝讯宝迩电子科技有限公司 | Bridge rectifier demonstration circuit |
-
2011
- 2011-01-18 CN CN2011200141105U patent/CN201993955U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123756A (en) * | 2011-11-18 | 2013-05-29 | 四川蓝讯宝迩电子科技有限公司 | Bridge rectifier demonstration circuit |
| CN102903285A (en) * | 2012-10-16 | 2013-01-30 | 长春工业大学 | Demonstration instrument for addition and subtraction characteristics of electrical bridge |
| CN102903285B (en) * | 2012-10-16 | 2014-05-07 | 长春工业大学 | Demonstration instrument for addition and subtraction characteristics of electrical bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20120118 |