CN203455982U - Direct current demonstration electric bell - Google Patents
Direct current demonstration electric bell Download PDFInfo
- Publication number
- CN203455982U CN203455982U CN201320549037.0U CN201320549037U CN203455982U CN 203455982 U CN203455982 U CN 203455982U CN 201320549037 U CN201320549037 U CN 201320549037U CN 203455982 U CN203455982 U CN 203455982U
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- CN
- China
- Prior art keywords
- bell
- electric bell
- shell fragment
- binding post
- direct current
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- 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
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The utility model discloses a direct current demonstration electric bell, comprising a base, and an iron bell, a vibration spring, and a plurality of electromagnet coils connected in series on the base. One end of the vibration spring is fixed, and the other end contacts a contact screw on a side of the vibration spring. An end of the electromagnet coil which is on the other side of the vibration spring is connected with the vibration spring, and the other end is connected with a first binding post through a wire. The contact screw whose position can be adjusted is connected with a second binding post through a wire. An armature sheet is fixedly connected with the vibration spring. A tail end of the armature sheet is provided with a bell clapper facing the iron bell. The first binding post and the second binding post are connected with a power supply. Beneficial effects of the electric bell are simple structure and principle, convenient operation, large electric bell sound, and convenient maintenance.
Description
Technical field
The utility model relates to a kind of apparatus for demonstrating in physics teaching in secondary school, particularly a kind of direct current demonstration electric bell.
Background technology
A kind of application as electromagnet, DC ringer is an emphasis in junior physics study electromagnetics part, also be a difficult point, in order to make student can better grasp the knowledge of electromagnet and the principle of work of electric bell, direct current demonstration electric bell is a requisite educational aid.On existing market, occur various multi-form demonstration electric bells, but the sound of electric bell is little, and complicated structure, inconvenient student's understanding.
Utility model content
The defect existing for existing magnetic latching relay, the utility model provides a kind of direct current demonstration electric bell.
To achieve these goals, technical solution adopted in the utility model is:
A kind of direct current demonstration electric bell, comprise base and be arranged on the iron bell on base, vibration shell fragment and several magnet coils that are cascaded, vibration shell fragment one end is fixed, the other end contacts with the contact screw of vibration shell fragment one side, the magnet coil one end that is positioned at vibration shell fragment opposite side is connected with vibration shell fragment, the other end is connected with the first binding post by wire, the contact screw that position is adjustable is connected with the second binding post by wire, on vibration shell fragment, be fixedly connected with armature plate, the end of armature plate is provided with one over against the bell clapper of iron bell, the first binding post is connected with power supply with the second binding post, also comprise controller, controller is electrically connected to armature, receiver is housed on controller, receiver is electrically connected to transmitter by wireless, transmitter firing order is controlled controller and is realized the control to electric bell,
Described power supply is 6～9V direct supply;
The resistance of described magnet coil is 10～20 ohm;
The number of described magnet coil is 2.
On controller, be provided with frequency and adjust chip, by adjusting frequency, adjust the frequency that chip regulates electric bell to impact.
The beneficial effects of the utility model: two binding posts are received on 6～9V direct supply and got final product work, and structure, principle are simple, easy to operate; The electric bell sound is large, and the sound can covering radius be the scope of 15 meters; Maintenance and Repair are convenient, in experimentation, if it is undesired to vibrate shell fragment work, can, by regulating the distance of contact screw and shell fragment, make it normal contact and separate; Coordinate air extractor can also do airborne sound experiment.
Accompanying drawing explanation
Fig. 1, structural representation of the present utility model.
Embodiment
A kind of direct current demonstration electric bell, comprise base 1 and be arranged on the iron bell 2 on base 1, vibration shell fragment 5 and several magnet coils that are cascaded 4, vibration shell fragment 5 one end are fixed, the other end contacts with the contact screw 7 of vibration shell fragment 5 one sides, magnet coil 4 one end that are positioned at vibration shell fragment 5 opposite sides are connected with vibration shell fragment 5, the other end is connected with the first binding post 8 by wire, the contact screw 7 that position is adjustable is connected with the second binding post 9 by wire, on vibration shell fragment 5, be fixedly connected with armature plate 3, the end of armature plate 3 is provided with one over against the bell clapper 6 of iron bell 2, the first binding post 8 is connected with power supply with the second binding post 9, described power supply is 6～9V direct supply, the resistance of described magnet coil 4 is 10～20 ohm, the number of described magnet coil 4 is 2.The environment for use temperature of this electric bell is-10～40 ℃, and relative humidity is for being not more than 85%.
Principle of work of the present utility model: when electric bell switches on power, electric current is by electromagnet, and electromagnet produces magnetic, and armature plate is adsorbed, and makes bell clapper clash into iron bell; Simultaneously, vibration shell fragment and contact screw leave, circuit is cut off, and the magnetic of electromagnet disappears, and vibration shell fragment rebounds under the effect of elastic force, contact with contact screw again, circuit connects into again path, and electromagnet produces again magnetic, and the armature plate being adsorbed by electromagnet makes bell clapper clash into iron bell, so circulation, is ceaselessly beaten electric bell.
The beneficial effects of the utility model: two binding posts are received on 6～9V direct supply and got final product work, and structure, principle are simple, easy to operate; The electric bell sound is large, and the sound can covering radius be the scope of 15 meters; Maintenance and Repair are convenient, in experimentation, if it is undesired to vibrate shell fragment work, can, by regulating the distance of contact screw and shell fragment, make it normal contact and separate; Coordinate air extractor can also do airborne sound experiment.。
The simple replacement of those ordinary skill in the art and replacing are all within this patent protection domain.
Claims (5)
1. a direct current is demonstrated electric bell, it is characterized in that: comprise base (1) and be arranged on the iron bell (2) on base (1), vibration shell fragment (5) and several magnet coils being cascaded (4), vibration shell fragment (5) one end is fixed, the other end contacts with the contact screw (7) of vibration shell fragment (5) one sides, magnet coil (4) one end that is positioned at vibration shell fragment (5) opposite side is connected with vibration shell fragment (5), the other end is connected with the first binding post (8) by wire, the contact screw that position is adjustable (7) is connected with the second binding post (9) by wire, on vibration shell fragment (5), be fixedly connected with armature plate (3), the end of armature plate (3) is provided with a bell clapper over against iron bell (2) (6), the first binding post (8) is connected with power supply with the second binding post (9), also comprise controller, controller is electrically connected to armature, receiver is housed on controller, receiver is electrically connected to transmitter by wireless, transmitter firing order is controlled controller and is realized the control to electric bell.
2. a kind of direct current demonstration electric bell according to claim 1, is characterized in that: described power supply is 6～9V direct supply.
3. a kind of direct current demonstration electric bell according to claim 1 and 2, is characterized in that: the resistance of described magnet coil (4) is 10～20 ohm.
4. a kind of direct current demonstration electric bell according to claim 3, is characterized in that: the number of described magnet coil (4) is 2.
5. a kind of direct current demonstration electric bell according to claim 4, is characterized in that: on controller, be provided with frequency and adjust chip, adjust the frequency that chip regulates electric bell to impact by adjusting frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320549037.0U CN203455982U (en) | 2013-09-04 | 2013-09-04 | Direct current demonstration electric bell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320549037.0U CN203455982U (en) | 2013-09-04 | 2013-09-04 | Direct current demonstration electric bell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203455982U true CN203455982U (en) | 2014-02-26 |
Family
ID=50135843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320549037.0U Expired - Fee Related CN203455982U (en) | 2013-09-04 | 2013-09-04 | Direct current demonstration electric bell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203455982U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103456216A (en) * | 2013-09-04 | 2013-12-18 | 余姚市科仪光仪有限公司 | Direct-current demonstration electric bell |
| PL423829A1 (en) * | 2017-12-11 | 2019-06-17 | Uniwersytet Łódzki | Electromagnetic breaker |
| PL423949A1 (en) * | 2017-12-19 | 2019-07-01 | Uniwersytet Łódzki | Electromagnetic breaker |
-
2013
- 2013-09-04 CN CN201320549037.0U patent/CN203455982U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103456216A (en) * | 2013-09-04 | 2013-12-18 | 余姚市科仪光仪有限公司 | Direct-current demonstration electric bell |
| PL423829A1 (en) * | 2017-12-11 | 2019-06-17 | Uniwersytet Łódzki | Electromagnetic breaker |
| PL423949A1 (en) * | 2017-12-19 | 2019-07-01 | Uniwersytet Łódzki | Electromagnetic breaker |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140226 Termination date: 20160904 |