CN205068954U - Student hand generator teaching aid - Google Patents
Student hand generator teaching aid Download PDFInfo
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- CN205068954U CN205068954U CN201520850515.0U CN201520850515U CN205068954U CN 205068954 U CN205068954 U CN 205068954U CN 201520850515 U CN201520850515 U CN 201520850515U CN 205068954 U CN205068954 U CN 205068954U
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- fixed head
- conducting strip
- installation cavity
- teaching aid
- conductive pole
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Abstract
The utility model relates to a student hand generator teaching aid. Including shell, speed gearset, electricity generation motor and hand handle. The utility model provides a student hand generator teaching aid is because tubbiness installation cavity open -top on the shell antetheca, and elasticity conducting strip and connection piece reach electrically conductive mesh through springiness contaction to do not take fixed connection's mode, the installation of the motor that consequently conveniently generates electricity or take out, contact simultaneously is reliable, and is electrically conductive reliable.
Description
Technical field
The utility model relates to physics student experiment equipment field, is specifically related to a kind of student's hand generator teaching aid.
Background technology
The form of generator is a lot, but its principle of work all carrys out generation current based on the change of electromagnetic field.Usually adopt hand generator to carry out the teaching demonstration of electromagnetic field in teaching, make abstract electricity knowledge become image concrete, can motivate students' interest in learning.Existing hand generator generally includes shell, gear teeth wheels, electric power generating motor and hand cranking handle, described shell comprises protecgulum and bonnet, described protecgulum and bonnet internal combination form the cavity volume that can hold gear teeth wheels, open top tubbiness installation cavity is inwardly covered with before described, installation cavity is vertical at housing front plate, one end of electric power generating motor rotating shaft is in cavity volume, end is provided with motor gear and engages with the gear teeth wheels in cavity volume, by hand-drive speed gear group, drive the generating of micro generation motor.In order to connect wire, electric power generating motor sidewall is provided with a pair brace exported for electric current near the position of one end, shell is provided with the binding post for being electrically connected with brace, connects to facilitate outer lead.But existing student's hand generator teaching aid is due to design, or connect comparatively reliable, but inconvenience dismounting, or be convenient to dismounting, but connect unreliable.
Summary of the invention
The purpose of this utility model is to provide one both for convenience detach to overcome the deficiencies in the prior art, connects again student's hand generator teaching aid reliably.
For achieving the above object, the utility model provides a kind of student's hand generator teaching aid, comprise shell, gear teeth wheels, electric power generating motor and hand cranking handle, described shell forms the cavity volume that can hold gear teeth wheels, described housing front plate is provided with open-topped tubbiness installation cavity, installation cavity is vertical at housing front plate, described installation cavity bottom surface is provided with the aperture through with cavity volume, described electric power generating motor is arranged in installation cavity, one end of electric power generating motor rotating shaft penetrates cavity volume from described aperture, end is provided with motor gear and engages with the gear teeth wheels in cavity volume, it is characterized in that: the sidewall of described installation cavity and electric power generating motor brace opposite position is that breach is arranged, the position relative with described breach is provided with fixed head, described fixed head is provided with a pair elastic conducting strip towards the side of brace, described fixed head opposite side is provided with a pairs of posts, a described pairs of posts is electrically connected with described a pair elastic conducting strip respectively.
Compared with prior art, student's hand generator teaching aid that the utility model provides is due to the tubbiness installation cavity open top on housing front plate, and elastic conducting strip and brace reach the object of conduction by Elastic Contact, do not take the mode be fixedly connected with, therefore installation or the taking-up of electric power generating motor is facilitated, contact is reliable simultaneously, and conduction is reliable.
Be described in further detail of the present utility model below in conjunction with specific embodiments and the drawings.
Accompanying drawing explanation
Fig. 1 is one of the utility model specific embodiment schematic appearance;
Fig. 2 is the utility model specific embodiment schematic appearance two;
Fig. 3 is one of the utility model specific embodiment decomposition texture schematic diagram;
Fig. 4 is the utility model specific embodiment decomposition texture schematic diagram two;
Fig. 5 is the utility model shell specific embodiment structural representation.
Embodiment
As Figure 1-5, student's hand generator teaching aid comprises shell 1, gear teeth wheels 2, electric power generating motor 3 and hand cranking handle 4, described shell 1 forms the cavity volume that can hold gear teeth wheels 2, in this specific embodiment, according to the concrete shape of gear teeth wheels 2, the contour shape of described shell 1 is up-small and down-big similar pyriform, and main body is in having certain thickness flat case.Electric power generating motor 3 selects the microgenerator of small volume, described shell 1 antetheca is provided with open-topped tubbiness installation cavity 101, installation cavity 101 is vertical at shell 1 antetheca, the shape of installation cavity 101 and electric power generating motor 3 matching form, be preferably zero to coordinate or interference slightly, described installation cavity 101 bottom surface is provided with the aperture through with cavity volume, described electric power generating motor 3 is arranged in installation cavity 101, one end of electric power generating motor 3 rotating shaft penetrates cavity volume from described aperture, end is provided with motor gear 8 and engages with the gear teeth wheels 2 in cavity volume, the other end of electric power generating motor 3 rotating shaft is provided with flabellum 6.Described installation cavity 101 is that breach is arranged with the sidewall of electric power generating motor 3 brace opposite position, the position relative with described breach is provided with fixed head 102, described fixed head 102 is provided with a pair elastic conducting strip 7 towards the side of brace, elastic conducting strip 7 and brace Elastic Contact, described fixed head 102 opposite side is provided with a pairs of posts 5, and a described pairs of posts 5 is electrically connected with described a pair elastic conducting strip 7 respectively.Conveniently produce and assemble, described shell 11 is made up of left shell and right shell body, preferably adopts transparent material to make.
Described binding post 5 comprises conductive pole 501, lock-screw 502 and set nut 503, conductive pole 501 upper surface is provided with little stud, conductive pole 501 lower surface is provided with the screw matched with lock-screw 502, described fixed head 102 is provided with through hole, one end of described elastic conducting strip 7 is provided with mounting hole, lock-screw 502 to be threaded with conductive pole 501 lower surface screw through the through hole on the mounting hole of described elastic conducting strip 7 and fixed head 102 to fixed head 102 another side and to be fastened on fixed head 102 by elastic conducting strip 7 and conductive pole 501, described set nut 503 is threaded with the little stud in the upper surface of conductive pole 501.
Several transmission gears are generally had in described gear teeth wheels 2, be provided with small one and large one double-layer gears composition gear teeth wheels 2 be stacked of driven wheel and three groups in this specific embodiment altogether to accelerate, in first group, gear wheel is driven wheel, described shell 1 rear wall is provided with axis hole with driven wheel central shaft correspondence position, described hand cranking handle 4 comprises L shape crank and drives convex axle, described L shape crank one end is hinged with the convex shaft end of driving, the other end is handle, jointed shaft is arranged with the convex axle of described driving is vertical mutually, the convex axle other end of described driving is connected with the central shaft of driven wheel through axis hole.
Claims (3)
1. student's hand generator teaching aid, comprise shell, gear teeth wheels, electric power generating motor and hand cranking handle, described shell forms the cavity volume that can hold gear teeth wheels, described housing front plate is provided with open-topped tubbiness installation cavity, installation cavity is vertical at housing front plate, described installation cavity bottom surface is provided with the aperture through with cavity volume, described electric power generating motor is arranged in installation cavity, one end of electric power generating motor rotating shaft penetrates cavity volume from described aperture, end is provided with motor gear and engages with the gear teeth wheels in cavity volume, it is characterized in that: the sidewall of described installation cavity and electric power generating motor brace opposite position is that breach is arranged, the position relative with described breach is provided with fixed head, described fixed head is provided with a pair elastic conducting strip towards the side of brace, elastic conducting strip and brace Elastic Contact, described fixed head opposite side is provided with a pairs of posts, a described pairs of posts is electrically connected with described a pair elastic conducting strip respectively.
2. student's hand generator teaching aid according to claim 1, it is characterized in that: described binding post comprises conductive pole, lock-screw and set nut, conductive pole upper surface is provided with little stud, conductive pole lower surface is provided with the screw matched with lock-screw, described fixed head is provided with through hole, one end of described elastic conducting strip is provided with mounting hole, lock-screw to be threaded with conductive pole lower surface screw through the through hole on the mounting hole of described elastic conducting strip and fixed head to fixed head another side and to be fastened on fixed head by elastic conducting strip and conductive pole, described set nut is threaded with the little stud in the upper surface of conductive pole.
3. student's hand generator teaching aid according to claim 1, is characterized in that: described shell and installation cavity are formed by left shell and right shell body merging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520850515.0U CN205068954U (en) | 2015-10-29 | 2015-10-29 | Student hand generator teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520850515.0U CN205068954U (en) | 2015-10-29 | 2015-10-29 | Student hand generator teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205068954U true CN205068954U (en) | 2016-03-02 |
Family
ID=55395478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520850515.0U Active CN205068954U (en) | 2015-10-29 | 2015-10-29 | Student hand generator teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205068954U (en) |
-
2015
- 2015-10-29 CN CN201520850515.0U patent/CN205068954U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |