CN211237472U - Novel voltmeter for electronic experiment teaching - Google Patents
Novel voltmeter for electronic experiment teaching Download PDFInfo
- Publication number
- CN211237472U CN211237472U CN202020111786.5U CN202020111786U CN211237472U CN 211237472 U CN211237472 U CN 211237472U CN 202020111786 U CN202020111786 U CN 202020111786U CN 211237472 U CN211237472 U CN 211237472U
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- control system
- experiment teaching
- shell
- battery pack
- electronic experiment
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Abstract
The utility model discloses a novel voltmeter for electronic experiment teaching, which comprises a housin, the pointer, the translucent cover, a display screen, the indicator box, the negative terminal, two positive terminals, control system and intelligent suggestion device, the inside of casing is provided with voltage measurement device, the front side of casing is provided with the display mouth, the inside of casing is provided with the scale mark, the translucent cover is established in the outside of display mouth, the pointer is installed inside the casing, the display screen is located the below of pointer, the indicator box is fixed in the front side of casing, the inside of indicator box is provided with the instruction chamber, negative terminal spiral shell dress is in the top left side of indicator box, two positive terminals spiral dress are respectively on the top right side of indicator box, control system installs in the inside left side of indicator box, the display screen is connected with the control system electricity; the utility model discloses a have solved the shortcoming that exists to lack intelligent prompt facility among the prior art.
Description
Technical Field
The utility model particularly relates to the technical field of electronic experiment teaching especially relates to a novel voltmeter for electronic experiment teaching.
Background
Voltmeter for electronic experiment teaching is a device which is used for teaching voltage measurement of electrical appliances or power supplies in electronic experiment teaching and helps students to understand the relation between voltage and circuit.
The existing voltmeter for electronic teaching generally comprises a sensitive ammeter, a permanent magnet is arranged in the sensitive ammeter, a coil formed by a conducting wire is connected between two binding posts of the ammeter in series, and the coil is placed in a magnetic field of the permanent magnet and is connected with a pointer of the meter through a transmission device. The principle is that the magnetic effect of current is utilized, after the current passes through the coil, the coil generates a magnetic field, and the coil can deflect under the action of a magnet after being electrified, so that the voltage measurement is completed.
The existing voltmeter for electronic teaching can only read according to a pointer, and a certain intelligent prompt function is lacked, so that the voltmeter is inconvenient to use.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists and lack intelligent prompt facility among the prior art, and the novel voltmeter for electronic experiment teaching that provides.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a novel voltmeter for electronic experiment teaching comprises a shell, a pointer, a transparent cover, a display screen, an indication box, a negative terminal, two positive terminals, a control system and an intelligent prompting device, wherein a voltage measuring device is arranged inside the shell, a display opening is formed in the front side of the shell, a scale mark is arranged inside the shell, the transparent cover is covered outside the display opening, the pointer is installed inside the shell, the display screen is installed inside the shell and is positioned below the pointer, the indication box is fixed on the front side of the shell, an indication cavity is formed inside the indication box, the negative terminal is screwed on the left side of the top of the indication box, the two positive terminals are respectively screwed on the right side of the top of the indication box, the control system is installed on the left side of the inside of the indication box, and the display screen is electrically connected with the control system, the intelligent prompting device is installed in the middle of the indicating box, electrically connected with the two positive terminal posts and electrically connected with the control system.
Furthermore, the transparent cover is made of toughened glass.
Further, two coating layers with different colors are arranged on the outer sides of the negative terminal and the two positive terminals.
Further, the device also comprises an overload protection device, wherein the overload protection device is arranged on the right side inside the indication box, and the overload protection device is electrically connected with the voltage measurement device and the control system.
Further, the overload protection device further comprises an alarm which is electrically connected with the overload protection device and the control system.
The intelligent indicating box comprises an indicating box body, and is characterized by further comprising a storage battery pack, wherein the storage battery pack is arranged on the right side inside the indicating box, and the control system, the intelligent prompting device, the overload protection device and the alarm are all electrically connected with the storage battery pack.
Furthermore, the battery pack further comprises an electric quantity display device, wherein the electric quantity display device is installed on the right side of the battery pack and is electrically connected with the battery pack.
The utility model has the advantages that:
1. the voltage value obtained by measurement can be displayed through the display screen, so that the scales pointed by the pointer can be combined, students can quickly master the reading and measuring method of the voltmeter, and the efficiency and effect of electronic experiment teaching are improved.
2. Can remind the anodal terminal position of connecting and voltage measurement device's measuring range this moment to the student through control system and intelligent suggestion device when two anodal terminal switch on to be convenient for the student measures, prevent that the student from connecing wrong anodal terminal and leading to can't correctly carrying out the measurement of voltage.
Drawings
Fig. 1 is a schematic structural view of a novel voltmeter for electronic experiment teaching provided by the utility model;
fig. 2 is a left side view of the novel voltmeter for electronic experiment teaching provided by the utility model;
FIG. 3 is a schematic diagram of the electric connection of the novel voltmeter for electronic experiment teaching provided by the present invention;
fig. 4 is a schematic view of a three-dimensional structure of the novel voltmeter for electronic experiment teaching provided by the utility model;
in the figure: the intelligent alarm comprises a shell 1, a pointer 2, a transparent cover 3, a display screen 4, an indication box 5, a negative terminal 6, a positive terminal 7, a control system 8, an intelligent prompting device 9, a scale mark 10, an overload protection device 11, an alarm 12, a storage battery pack 13 and an electric quantity display device 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Referring to fig. 1-4, a novel voltmeter for electronic experiment teaching comprises a shell 1, a pointer 2, a transparent cover 3, a display screen 4, an indication box 5, a negative terminal 6, two positive terminals 7, a control system 8 and an intelligent prompting device 9, wherein a voltage measuring device is arranged inside the shell 1, a display opening is formed in the front side of the shell 1, a scale mark 10 is arranged inside the shell 1, the transparent cover 3 is covered outside the display opening, and the transparent cover 3 is made of toughened glass, so that the scratch resistance and the use strength of the transparent cover 3 are improved; the pointer 2 is installed inside the shell 1, the display screen 4 is located below the pointer 2, the indication box 5 is fixed on the front side of the shell 1, an indication cavity is formed inside the indication box 5, the negative terminal 6 is screwed on the left side of the top of the indication box 5, the two positive terminals 7 are respectively screwed on the right side of the top of the indication box 5, and two coating layers with different colors are arranged on the outer sides of the negative terminal 6 and the two positive terminals 7, so that students can distinguish positive and negative electrodes conveniently; the control system 8 is arranged at the left side of the inside of the indication box 5, the display screen 4 is electrically connected with the control system 8, the intelligent prompting device 9 is arranged in the middle of the inside of the indicating box 5, the intelligent prompting device 9 is electrically connected with the two positive terminal posts 7, the intelligent prompting device 9 is electrically connected with the control system 8, the measured voltage value can be displayed through the display screen 4, thereby combining the scales pointed by the pointer 2, enabling students to quickly master the reading and measuring method of the voltmeter, improving the efficiency and effect of electronic experiment teaching, in addition, when the two positive terminals 7 are powered on through the control system 8 and the intelligent prompting device 9, the student is alerted to the position of the connected positive terminal 7 and the measurement range of the voltage measuring device at that time, therefore, students can measure conveniently, and the problem that the voltage cannot be measured correctly due to the fact that the students connect the positive terminal post 7 incorrectly is prevented; the device also comprises an overload protection device 11, wherein the overload protection device 11 is arranged on the right side in the indication box 5, the overload protection device 11 is electrically connected with the voltage measurement device and the control system 8, and a voltmeter can be wrongly connected into a circuit with overlarge voltage by a student through the overload protection device 11 to protect the voltage measurement device and avoid damage to the voltmeter due to overlarge current; the overload protection device 11 and the control system 8 are electrically connected, and when an overload condition occurs, the alarm 12 can give an alarm to remind students so that the students can correct the circuit in time; the intelligent indicating box comprises an indicating box body 5, and is characterized by further comprising a storage battery pack 13, wherein the storage battery pack 13 is arranged on the right side inside the indicating box body 5, the control system 8, the intelligent prompting device 9, the overload protection device 11 and the alarm 12 are all electrically connected with the storage battery pack 13, and the storage battery pack 13 can supply power to the control system 8 and the like, so that the storage battery pack can be continuously used; the battery pack is characterized by further comprising an electric quantity display device 14, wherein the electric quantity display device 14 is installed on the right side of the battery pack 13, the electric quantity display device 14 is electrically connected with the battery pack 13, and the residual electric quantity of the battery pack 13 can be displayed through the electric quantity display device 14.
The working principle of the embodiment is as follows: in use, the negative terminal 6 and one of the two positive terminals 7 are connected to the circuit, and then the use of the voltmeter and the measurement of the circuit voltage are learned in combination with the indication of the pointer 2 and the display of the display screen 4.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. A novel voltmeter for electronic experiment teaching comprises a shell (1), a pointer (2), a transparent cover (3), a display screen (4), an indication box (5), a negative terminal (6), two positive terminals (7), a control system (8) and an intelligent prompting device (9), and is characterized in that a voltage measuring device is arranged inside the shell (1), a display opening is formed in the front side of the shell (1), scale marks (10) are arranged inside the shell (1), the transparent cover (3) covers the outer side of the display opening, the pointer (2) is arranged inside the shell (1), the display screen (4) is located below the pointer (2), the indication box (5) is fixed on the front side of the shell (1), an indication cavity is arranged inside the indication box (5), negative terminal (6) spiral shell dress is in the top left side of instruction case (5), and two positive terminal (7) spiral shell dress are respectively on the top right side of instruction case (5), install control system (8) the inside left side of instruction case (5), display screen (4) with control system (8) electricity is connected, install at the inside middle part of instruction case (5) intelligence suggestion device (9), and intelligence suggestion device (9) are connected with two positive terminal (7) electricity, and intelligence suggestion device (9) are connected with control system (8) electricity.
2. The novel voltmeter for electronic experiment teaching as claimed in claim 1, wherein: the transparent cover (3) is made of toughened glass.
3. The novel voltmeter for electronic experiment teaching as claimed in claim 1, wherein: and two coating layers with different colors are arranged on the outer sides of the negative terminal (6) and the two positive terminals (7).
4. The novel voltmeter for electronic experiment teaching as claimed in claim 1, wherein: the indicating box is characterized by further comprising an overload protection device (11), wherein the overload protection device (11) is installed on the right side inside the indicating box (5), and the overload protection device (11) is electrically connected with the voltage measuring device and the control system (8).
5. The novel voltmeter for electronic experiment teaching as claimed in claim 4, wherein: the overload protection device further comprises an alarm (12), wherein the alarm (12) is electrically connected with the overload protection device (11) and the control system (8).
6. The novel voltmeter for electronic experiment teaching as claimed in claim 5, wherein: the intelligent indicating box is characterized by further comprising a storage battery pack (13), wherein the storage battery pack (13) is installed on the right side inside the indicating box (5), and the control system (8), the intelligent prompting device (9), the overload protection device (11) and the alarm (12) are all electrically connected with the storage battery pack (13).
7. The novel voltmeter for electronic experiment teaching as claimed in claim 6, wherein: the battery pack is characterized by further comprising an electric quantity display device (14), wherein the electric quantity display device (14) is installed on the right side of the battery pack (13), and the electric quantity display device (14) is electrically connected with the battery pack (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020111786.5U CN211237472U (en) | 2020-01-17 | 2020-01-17 | Novel voltmeter for electronic experiment teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020111786.5U CN211237472U (en) | 2020-01-17 | 2020-01-17 | Novel voltmeter for electronic experiment teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211237472U true CN211237472U (en) | 2020-08-11 |
Family
ID=71916647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020111786.5U Expired - Fee Related CN211237472U (en) | 2020-01-17 | 2020-01-17 | Novel voltmeter for electronic experiment teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211237472U (en) |
-
2020
- 2020-01-17 CN CN202020111786.5U patent/CN211237472U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20200811 Termination date: 20210117 |