CN211555262U - Joule's law experiment teaching aid - Google Patents
Joule's law experiment teaching aid Download PDFInfo
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- CN211555262U CN211555262U CN202020593509.2U CN202020593509U CN211555262U CN 211555262 U CN211555262 U CN 211555262U CN 202020593509 U CN202020593509 U CN 202020593509U CN 211555262 U CN211555262 U CN 211555262U
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Abstract
The utility model provides a joule law experiment teaching aid belongs to experiment teaching aid technical field. It has solved the inconvenient, sealed inconvenient scheduling problem of current joule law experiment teaching aid ohmic connection. This joule law experiment teaching aid includes the casing, sets up the temperature measurement chamber on the casing, is provided with temperature sensor on the casing, temperature sensor's detection end penetrates in the temperature measurement chamber, is provided with the display screen on the casing, and the display screen is arranged in the temperature measurement chamber that shows temperature sensor detects, and the temperature measurement intracavity is dismantled and is provided with temperature measurement resistance, and the temperature measurement chamber still is provided with can dismantle the heat preservation lid that sets up, and the cooperation forms inclosed space between heat preservation lid and the temperature measurement chamber. The utility model has the advantages of convenient resistance connection, convenient heat preservation and the like.
Description
Technical Field
The utility model belongs to the technical field of the experiment teaching aid, a joule law experiment teaching aid is related to.
Background
Joule's law is a law that quantitatively describes the conversion of electrical energy to heat energy by conduction current, and the heat generated by the current passing through a conductor is proportional to the square of the current, proportional to the resistance of the conductor, and proportional to the time of energization.
In the teaching process of middle school, the cognition on joule's law is usually increased by teaching experiments. In the process of the experiment, the resistance value of the resistor, the numerical value of the current and the temperature of the air at the periphery of the resistor need to be recorded.
To above-mentioned problem, people have set up the experiment teaching aid that is used for the joule law, for example a joule law evolves ware, include the container spare and the temperature acquisition display system made by transparent material, container body top sealing connection has the lid, the internal resistance that is equipped with of container, be equipped with on the container lid with two terminals of ohmic connection, temperature acquisition display system includes temperature sensor, microprocessor and temperature digital display screen, temperature sensor establishes at the container internal and is connected with microprocessor's signal input part, the temperature digital display screen is established on backplate upper portion and is connected with microprocessor's signal output part.
The current joule law experiment teaching aid has defects such as the resistance connection is inconvenient, the container body is sealed inconvenient.
Disclosure of Invention
The utility model aims at providing a resistance simple to operate, sealed convenient joule law experiment teaching aid to the above-mentioned problem that exists among the prior art.
The purpose of the utility model can be realized by the following technical proposal: the utility model provides a joule law experiment teaching aid, a serial communication port, which comprises a housin, the casing on set up the temperature measurement chamber, the casing on be provided with temperature sensor, temperature sensor's detection end penetrates in the temperature measurement chamber, the casing on be provided with the display screen, the display screen be arranged in showing the temperature in the temperature measurement chamber that temperature sensor detected, the temperature measurement intracavity dismantle and be provided with temperature measurement resistance, the temperature measurement chamber still be provided with and dismantle the heat preservation lid that sets up, heat preservation lid and temperature measurement chamber between the cooperation form inclosed space.
The utility model discloses a theory of operation: when the experiment of joule law need be carried out, connect temperature measurement resistance in the temperature measurement intracavity, will keep warm and cover and install to the temperature measurement chamber in for temperature sensor and temperature measurement resistance are located and cooperate between heat preservation cover and the temperature measurement chamber and form inclosed space, record temperature measurement resistance's resistance, and the temperature in the temperature measurement chamber can be promoted to the temperature measurement resistance circular telegram back that generates heat, and temperature sensor can survey the temperature in the temperature measurement chamber in real time, and show to the display screen on, supply the experimenter record. The utility model provides a temperature measuring resistor and temperature sensor install on the casing, and the lid that keeps warm sets up alone, simple structure, and is sealed convenient.
In foretell joule law experiment teaching aid, the temperature measurement intracavity be provided with the post that connects fast, temperature measurement resistance dismantle with the post that connects fast and be connected.
In the joule law experiment teaching aid, the casing on be provided with the switch of control circuit break-make.
In foretell joule law experiment teaching aid, the casing on seted up two at least temperature measurement chambeies, the casing on be provided with temperature measurement chamber quantity assorted display screen, every the temperature measurement intracavity all be provided with temperature measuring resistor.
In foretell joule law experiment teaching aid, the perisporium in temperature measurement chamber set up with the perpendicular to surface of casing, the perisporium of heat preservation lid laminate mutually with the surface of casing, the heat preservation lid can slide along temperature measurement chamber depth direction, temperature measurement chamber and heat preservation lid be provided with buckle and draw-in groove respectively, buckle and draw-in groove block make the heat preservation lid be fixed in the temperature measurement intracavity.
In foretell joule law experiment teaching aid, the casing on be provided with and make things convenient for the lid groove of getting off that keeps warm to take off.
In foretell joule law experiment teaching aid, the casing on still be provided with and transfer the chamber of hindering, transfer the intracavity dismantle and be provided with and transfer resistance, transfer resistance and temperature measurement resistance parallelly connected, transfer the chamber of hindering and dismantle and be connected with the protective cover.
In foretell joule law experiment teaching aid, the casing on be provided with the battery installation cavity, the battery installation cavity is used for installing the battery, the battery installation cavity dismantle and be connected with the battery cover.
In foretell joule law experiment teaching aid, still include power plug, power plug be used for with the socket connection and supply power.
In foretell joule law experiment teaching aid, the back of casing be provided with magnet.
In the joule law experiment teaching aid, the casing on be provided with and hold the groove.
Compared with the prior art, the utility model has the advantages of resistance simple to operate, sealed convenient.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the utility model with the heat preservation cover and the protective cover installed.
Fig. 3 is a schematic structural view of the rear view direction of the middle housing of the present invention.
Fig. 4 is a schematic structural diagram of the rear view direction of the present invention.
Fig. 5 is a schematic structural view of the heat preservation cover of the present invention.
Fig. 6 is a schematic circuit diagram of the present invention.
In the figure, 1, a housing; 2. a temperature measuring cavity; 3. a temperature sensor; 4. a display screen; 5. a temperature measuring resistor; 6. A heat preservation cover; 7. fast connecting columns; 8. a switch; 9. taking a cover groove; 10. a resistance adjusting cavity; 11. a resistance adjusting resistor; 12. A protective cover; 13. a battery mounting cavity; 14. a battery cover; 15. a magnet; 16. holding the groove; 17. buckling; 18. a card slot; 19: and a power plug.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in figures 1-5, this joule law experiment teaching aid includes casing 1, sets up temperature measurement chamber 2 on the casing 1, is provided with temperature sensor 3 on the casing 1, temperature sensor 3's detection end penetrates in temperature measurement chamber 2, is provided with display screen 4 on the casing 1, and display screen 4 is arranged in showing the temperature in temperature measurement chamber 2 that temperature sensor 3 detected, and the dismantlement is provided with temperature measurement resistance 5 in the temperature measurement chamber 2, and temperature measurement chamber 2 still is provided with the heat preservation lid 6 that can dismantle the setting, and the cooperation forms inclosed space between heat preservation lid 6 and the temperature measurement chamber 2.
In detail, a quick connection column 7 is arranged in the temperature measuring cavity 2, and the temperature measuring resistor 5 is detachably connected with the quick connection column 7. This setting makes things convenient for the installation and the dismantlement of temperature measurement resistor 5, and the experimenter can be connected the temperature measurement resistor 5 of different resistances on quick connector 7 according to the experiment demand, practices thrift the class time.
In more detail, the casing 1 is provided with a switch 8 for controlling the on/off of the circuit. This setting makes safer when dismantling temperature measuring resistor 5, and after temperature measuring resistor 5 installed, can control opening of circuit through the circuit, convenient detection.
In further detail, at least two temperature measuring cavities 2 are formed in the shell 1, the display screens 4 matched with the temperature measuring cavities 2 in number are arranged on the shell 1, and a temperature measuring resistor 5 is arranged in each temperature measuring cavity 2. A plurality of resistors can be measured in this setting, and the experimenter can install the temperature measurement resistor 5 of different resistances in different temperature measurement chamber 2 ability, and the measurement of a plurality of resistance temperature can be realized in once experiment, simple structure. The temperature measuring resistors 5 are connected in series.
In a further elaboration, the circumferential wall of the temperature measuring cavity 2 is perpendicular to the surface of the shell 1, the circumferential wall of the heat preservation cover 6 is attached to the surface of the shell 1, the heat preservation cover 6 can slide along the depth direction of the temperature measuring cavity 2, the temperature measuring cavity 2 and the heat preservation cover 6 are respectively provided with a buckle 17 and a clamping groove 18, and the buckle 17 and the clamping groove 18 are clamped to enable the heat preservation cover 6 to be fixed in the temperature measuring cavity 2. This setting makes heat preservation lid 6 can directly push into survey temperature chamber 2 in, can make heat preservation lid 6 fixed, and simple structure is convenient.
In more detail, a cover taking groove 9 which is convenient for the heat preservation cover 6 to take down is arranged on the shell 1. The heat preservation cover 6 is convenient to take down by taking the device.
In further detail, the casing 1 is further provided with a resistance adjusting cavity 10, a resistance adjusting resistor 11 is detachably arranged in the resistance adjusting cavity 10, the resistance adjusting resistor 11 is connected with the temperature measuring resistor 5 in parallel, and the resistance adjusting cavity 10 is detachably connected with a protective cover 12. This setting makes through resistance trimming resistor 11 adjust the resistance value of the temperature measuring resistor 5 that is surveyed, can measure the temperature of more resistance values.
The power supply has two embodiments: in the first embodiment of the power supply, a battery installation cavity 13 is formed in the shell 1, the battery installation cavity 13 is used for installing a battery, and a battery cover 14 is detachably connected to the battery installation cavity 13; the second embodiment of the power supply may be a power plug 19, and the power plug 19 is used for connecting with an outlet and supplying power. The two embodiments can also be arranged on the experimental teaching aid together.
More specifically, a magnet 15 is provided on the back surface of the housing 1. This setting makes this experiment teaching aid can adsorb on magnetic blackboard through magnetic force, convenient teaching demonstration.
More specifically, the housing 1 is provided with a grip groove 16. This setting makes things convenient for this experiment teaching aid to take off from magnetic blackboard.
As preferred, the utility model discloses set up two temperature measurement chambeies 2, be provided with two display screens 4 on the casing 1, temperature measurement resistance 5 in one of them temperature measurement chamber 2 is connected with resistance trimming 11.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although a large number of terms are used here more, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (10)
1. The utility model provides a joule law experiment teaching aid, a serial communication port, including casing (1), casing (1) on set up temperature measurement chamber (2), casing (1) on be provided with temperature sensor (3), the detection end of temperature sensor (3) penetrates in temperature measurement chamber (2), casing (1) on be provided with display screen (4), display screen (4) be arranged in showing the temperature in temperature measurement chamber (2) that temperature sensor (3) detected, temperature measurement chamber (2) in dismantle and be provided with temperature measurement resistance (5), temperature measurement chamber (2) still be provided with and dismantle heat preservation lid (6) that set up, heat preservation lid (6) and temperature measurement chamber (2) between the cooperation form inclosed space.
2. A joule law experiment teaching aid according to claim 1, characterized in that, be provided with in temperature measuring chamber (2) and connect post (7) fast, temperature measuring resistance (5) with connect post (7) dismantlement connection fast.
3. A teaching aid for joule's law experiments according to claim 1, characterized in that the housing (1) is provided with a switch (8) for controlling the on-off of the circuit.
4. A Joule law experiment teaching aid according to claim 1, characterized in that, casing (1) on seted up two at least temperature measurement chambeies (2), casing (1) on be provided with temperature measurement chamber (2) quantity assorted display screen (4), every temperature measurement chamber (2) in all be provided with temperature measuring resistor (5).
5. A joule law experiment teaching aid according to claim 1, characterized in that, the perisporium of temperature measurement chamber (2) and the surface of casing (1) set up perpendicularly, the perisporium of heat preservation lid (6) and the surface of casing (1) laminate mutually, heat preservation lid (6) can slide along temperature measurement chamber (2) depth direction, heat preservation lid (6) slide into in temperature measurement chamber (2) fixed through frictional force.
6. A joule law experiment teaching aid according to claim 1, characterized in that, the casing (1) is provided with a cover taking groove (9) for taking off the heat preservation cover (6).
7. The joule law experiment teaching aid of claim 1, characterized in that, the casing (1) on still be provided with and transfer resistance chamber (10), transfer resistance chamber (10) in the dismantlement be provided with transfer resistance (11), transfer resistance (11) and temperature measuring resistance (5) parallelly connected, transfer resistance chamber (10) dismantlement and be connected with protective cover (12).
8. A joule law experiment teaching aid according to claim 1, characterized in that, casing (1) on be provided with battery installation cavity (13), battery installation cavity (13) are used for installing the battery, battery installation cavity (13) dismantle and be connected with battery cover (14).
9. A teaching aid for the experiments of joule's law according to claim 1, further comprising a power plug (19), wherein said power plug (19) is used for connecting with an electric outlet and supplying power.
10. A teaching aid for the experiments of joule's law according to claim 1, characterized in that a magnet (15) is arranged on the back of the housing (1); the shell (1) is provided with a hand holding groove (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020593509.2U CN211555262U (en) | 2020-04-20 | 2020-04-20 | Joule's law experiment teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020593509.2U CN211555262U (en) | 2020-04-20 | 2020-04-20 | Joule's law experiment teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211555262U true CN211555262U (en) | 2020-09-22 |
Family
ID=72495689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020593509.2U Active CN211555262U (en) | 2020-04-20 | 2020-04-20 | Joule's law experiment teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211555262U (en) |
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2020
- 2020-04-20 CN CN202020593509.2U patent/CN211555262U/en active Active
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