CN103456216A - Direct-current demonstration electric bell - Google Patents
Direct-current demonstration electric bell Download PDFInfo
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- CN103456216A CN103456216A CN2013103986624A CN201310398662A CN103456216A CN 103456216 A CN103456216 A CN 103456216A CN 2013103986624 A CN2013103986624 A CN 2013103986624A CN 201310398662 A CN201310398662 A CN 201310398662A CN 103456216 A CN103456216 A CN 103456216A
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- bell
- electric bell
- shell fragment
- binding post
- elastic piece
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Abstract
The invention discloses a direct-current demonstration electric bell. The bell comprises a base, an iron bell, a vibration elastic piece and a plurality of electromagnet coils connected together in series, wherein the iron bell, the vibration elastic piece and the electromagnet coils are arranged on the base. One end of the vibration elastic piece is fixed, and the other end of the vibration elastic piece makes contact with a contact screw on one side of the vibration elastic piece. One end of the electromagnet coil on the other side of the vibration elastic piece is connected with the vibration elastic piece, and the other end of the electromagnet on the other side of the vibration elastic piece is connected with a first binding post through a wire. The contact screw adjustable in position is connected with a second binding post through a wire. An armature piece is fixedly connected to the vibration elastic piece. A bell clapper right opposite to the iron bell is arranged at the tail end of the armature piece. The first binding post and the second binding post are connected with a power supply. The direct-current demonstration electric bell has the advantages of being simple in structure and principle, convenient to operate, loud in sound and convenient to maintain.
Description
Technical field
The present invention 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, be also a difficult point, in order to make the 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.Occur various multi-form demonstration electric bells on existing market, but the sound of electric bell is little, and complicated structure, inconvenient student's understanding.
Summary of the invention
The defect existed for existing magnetic latching relay, the invention provides a kind of direct current demonstration electric bell.
To achieve these goals, the technical solution used in the present invention 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, magnet coil one end that is positioned at vibration shell fragment opposite side is connected with the 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, be fixedly connected with armature plate on the vibration shell fragment, the end of armature plate is provided with a bell clapper over against the 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, the 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.
Be provided with frequency on controller and adjust chip, adjust chip by adjusting frequency and regulate the frequency that electric bell impacts.
Beneficial effect of the present invention: 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, but the scope that sound covering radius is 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 the airborne sound experiment.
The accompanying drawing explanation
Fig. 1, structural representation of the present invention.
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 ends are fixed, the other end contacts with the contact screw 7 of vibration shell fragment 5 one sides, magnet coil 4 one ends 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, be fixedly connected with armature plate 3 on vibration shell fragment 5, the end of armature plate 3 is provided with a bell clapper over against iron bell 26, 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 invention: 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 the iron bell; Simultaneously, vibration shell fragment and contact screw leave, circuit is cut off, and the magnetic of electromagnet disappears, and the vibration shell fragment rebounds under the effect of elastic force, with contact screw, contact again, circuit connects into again path, and electromagnet produces again magnetic, and the armature plate adsorbed by electromagnet makes bell clapper clash into the iron bell, so circulation, ceaselessly beaten electric bell.
Beneficial effect of the present invention: 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, but the scope that sound covering radius is 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 the 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 be cascaded (4), vibration shell fragment (5) one ends are fixed, the other end contacts with the contact screw (7) of vibration shell fragment (5) one sides, magnet coil (4) one ends that are positioned at vibration shell fragment (5) opposite side are 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, be fixedly connected with armature plate (3) on vibration shell fragment (5), 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, the transmitter firing order is controlled controller and is realized the control to electric bell.
2. a kind of direct current according to claim 1 is demonstrated electric bell, and it is characterized in that: described power supply is 6～9V direct supply.
3. a kind of direct current according to claim 1 and 2 is demonstrated electric bell, and it is characterized in that: the resistance of described magnet coil (4) is 10～20 ohm.
4. a kind of direct current according to claim 3 is demonstrated electric bell, and it 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: be provided with frequency on controller and adjust chip, adjust chip by adjusting frequency and regulate the frequency that electric bell impacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103986624A CN103456216A (en) | 2013-09-04 | 2013-09-04 | Direct-current demonstration electric bell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103986624A CN103456216A (en) | 2013-09-04 | 2013-09-04 | Direct-current demonstration electric bell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103456216A true CN103456216A (en) | 2013-12-18 |
Family
ID=49738534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103986624A Pending CN103456216A (en) | 2013-09-04 | 2013-09-04 | Direct-current demonstration electric bell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103456216A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2904171Y (en) * | 2006-03-09 | 2007-05-23 | 张耕毓 | Electromagnet properties demonstrator |
| CN201091011Y (en) * | 2007-10-08 | 2008-07-23 | 贵阳盛和科技有限公司 | Bus station wireless intelligent ringing control apparatus |
| CN202735715U (en) * | 2012-06-11 | 2013-02-13 | 冀北电力有限公司 | Long distance wireless intelligent bell ringing device |
| CN203455982U (en) * | 2013-09-04 | 2014-02-26 | 余姚市科仪光仪有限公司 | Direct current demonstration electric bell |
-
2013
- 2013-09-04 CN CN2013103986624A patent/CN103456216A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2904171Y (en) * | 2006-03-09 | 2007-05-23 | 张耕毓 | Electromagnet properties demonstrator |
| CN201091011Y (en) * | 2007-10-08 | 2008-07-23 | 贵阳盛和科技有限公司 | Bus station wireless intelligent ringing control apparatus |
| CN202735715U (en) * | 2012-06-11 | 2013-02-13 | 冀北电力有限公司 | Long distance wireless intelligent bell ringing device |
| CN203455982U (en) * | 2013-09-04 | 2014-02-26 | 余姚市科仪光仪有限公司 | Direct current demonstration electric bell |
Non-Patent Citations (3)
| Title |
|---|
| 中国教学仪器手册编委会: "《中国教学仪器手册》", 30 April 1995, article "J2412型电铃" * |
| 中学物理仪器编写组: "《中学物理仪器》", 31 October 1982, article "八、演示电铃" * |
| 王兴乃 等: "《教学仪器维修大全 第三册》", 31 December 1992, article "十二 电铃" * |
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Application publication date: 20131218 |