Heat conduction experiment teaching aid

Abstract

The utility model discloses a heat conduction experiment teaching aid, which can visually and accurately present a heat conduction process to students so as to enable the students to better accept and digest related knowledge of heat conduction, and can also display a cooling process so as to expand thinking. According to the technical scheme, the intelligent temperature control device is characterized by comprising a base, beakers, test tubes, temperature control structures and a temperature feedback module, the test tubes are vertically suspended in the middles of the beakers through a support, the temperature control structures are integrally arranged on the base, and each temperature control structure comprises a heating base, a refrigerating base and an intelligent control unit; the two beakers are arranged on the base and connected to the heating base and the refrigerating base respectively, the two beakers can be attached to each other to conduct temperature, the temperature feedback module is arranged on the base, the temperature feedback module can monitor and display the temperature of liquid in the beakers and the test tube simultaneously and respectively, and a heat conduction experiment and a cooling experiment can be independently achieved. And a solid heat conduction experiment between the two beakers deepens understanding of heat conduction knowledge and extension of thinking.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of teaching aids, in particular to a heat conduction experiment teaching aid. BACKGROUND

[0002] Heat conduction is the heat transfer phenomenon when there is no macroscopic movement in medium, in the teaching process, in order to make students better understand heat conduction, the way of beaker heat conduction is used to demonstrate the phenomenon of heat conduction for students.

[0003] In the beaker heat conduction experiment, two students are arranged for a group, hot water is placed in the beaker, one person holds the thermometer to check the water temperature in the beaker, the other person holds the test tube with one hand and holds the thermometer to check the water temperature in the test tube with the other hand, and the temperature difference and change of the two thermometers are observed to understand the process of heat conduction.

[0004] However, the experiment needs students to hold the tool stably, and the operation is time-consuming and laborious, and the reading of the transparent thermometer is not intuitive, in addition, students can only understand the transfer of heat, if you want to understand the process of heat conduction, you need to keep your eyes on the thermometer, and there is also the problem of laborious observation.

[0005] Therefore, an experimental teaching aid is needed, which can directly observe the heat conduction process and intuitively display the heat conduction process. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at providing a heat conduction experiment teaching aid, which can intuitively and accurately present the heat conduction process to students, so that students can better accept and digest the related knowledge of heat conduction, and can also display the cooling process to expand thinking.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A kind of heat conduction experiment teaching aid, including base, beaker, test tube, temperature control structure and temperature feedback module, the test tube is vertically suspended in the middle of beaker by support, beaker and test tube are equipped with two groups, temperature control structure is integrally arranged in base, the temperature control structure includes heating seat, refrigeration seat and intelligent control unit, and two the beaker is connected to heating seat and refrigeration seat respectively, two the beaker can be mutually adhered and conducted temperature, the temperature feedback module is arranged on the base, and temperature feedback module can simultaneously and respectively monitor, display the liquid temperature in beaker and test tube.

[0009] Compared with the prior art, the heat conduction experiment teaching aid adopting the above technical scheme has the following beneficial effects:

[0010] The heat conduction experiment teaching aid has the advantages that the heat conduction experiment teaching aid can be used to maintain the test tube through the support, and the temperature feedback module is fixedly arranged, so that students do not need to manually hold the test tube, and can pay attention to the temperature feedback module, and the temperature feedback module can be used to monitor and display the heat conduction process between the beaker and the test tube, and between the beaker and the beaker in real time, so that students can clearly understand the heat conduction process.

[0011] The temperature control structure can be used to accurately control the heating and cooling processes, so that the heat conduction experiment, the cooling experiment and the solid heat conduction experiment between the two beakers can be realized, various extension experiments can be carried out, the understanding of the heat conduction knowledge and the expansion of the thinking of students can be deepened, and the teaching effect is improved.

[0012] Preferably, the temperature feedback module is a thermal imaging camera, the thermal imaging camera is connected with the base through the positioning frame, and the positioning frame can drive the thermal imaging camera to turn over.

[0013] Preferably, the positioning frame comprises a fixed rod, a movable rod and a positioning rod, the fixed rod is a T-shaped structure arranged on the base, the positioning rod is connected with the movable rod through a rotating shaft, and the movable rod and the positioning rod can be horizontally pulled out of the fixed rod, the outer wall of the movable rod and the positioning rod is provided with a positioning strip, the inside of the fixed rod is provided with a strip-shaped groove matched with the positioning strip, the fixed rod is provided with a movable groove for horizontal displacement of the rotating shaft, and the strip-shaped groove is provided with a damping inner wall.

[0014] Preferably, one side of the thermal imaging camera is connected with an expansion screen, the expansion screen is connected with the circuit of the thermal imaging camera, the end of the positioning rod close to the movable rod is provided with a clamping part, and the clamping part is in contact with the lower side of the movable rod when the positioning rod and the movable rod are perpendicular to each other.

[0015] Preferably, the thermal imaging camera and the expansion screen are provided with protective pads on the sides close to the ground.

[0016] Preferably, the support is provided with a clamping ring matched with the test tube, and an elastic expansion ring is arranged in the clamping ring. Through the elastic expansion structure inside the clamping ring, the height positioning of the test tube can be realized when the test tube is inserted.

[0017] Preferably, the temperature feedback module further comprises a display screen and a plurality of temperature probes, the display screen is arranged on the base, the temperature probes are connected with the display screen through a line or a wireless transmission module, and the plurality of temperature probes can be arranged in the liquid in the beaker and the test tube respectively. In addition to the temperature monitoring mode of the thermal imaging camera, the mode of directly monitoring and transmitting data and then displaying can also be adopted, so that the feedback function of the heat change process is realized. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structure schematic view of the heat conduction experiment teaching aid embodiment of the utility model.

[0019] Figure 2 It is a structure schematic view of the support and the clamping ring in the embodiment.

[0020] Figure 3 It is a partial cross-sectional structure schematic view of the base, the beaker and the test tube in the embodiment.

[0021] Figure 4 It is an enlarged structure schematic view of the fixed rod in the embodiment.

[0022] Figure 5 It is a structure schematic view of the positioning frame and the thermal imaging camera in the embodiment.

[0023] Figure 6 It is a structure schematic view of the thermal imaging camera adjusted to the front state in the embodiment.

[0024] Figure 7 It is an enlarged structure schematic view of the position A in the embodiment.

[0025] The drawings show that: 1, the base; 10, the limiting block; 2, the beaker; 3, the test tube; 4, the temperature control structure; 40, the heating seat; 41, the refrigeration seat; 5, the temperature feedback module; 50, the thermal imaging camera; 51, the extension screen; 52, the protective pad; 6, the support; 60, the clamping ring; 61, the elastic expansion ring; 7, the positioning frame; 70, the fixed rod; 71, the movable rod; 72, the positioning rod; 73, the rotating shaft; 74, the positioning strip; 75, the strip-shaped slot; 76, the movable slot; 77, the damping inner wall; 78, the clamping part; 8, the display screen; 9, the temperature probe. DETAILED DESCRIPTION

[0026] The utility model will be further described in combination with the drawings.

[0027] For example, Figures 1 to 7The shown heat conduction experiment teaching aid comprises a base 1, a beaker 2, a test tube 3, a temperature control structure 4 and a temperature feedback module 5.

[0028] The test tube 3 is vertically suspended in the middle of the beaker 2 through a support 6, and the beaker 2 and the test tube 3 are both provided with two groups.

[0029] As to the matching mode of the test tube 3 and the support 6, the support 6 is provided with a clamping ring 60 adapted to the test tube 3, and the clamping ring 60 is provided with an elastic expansion ring 61.

[0030] The temperature control structure 4 is integrally arranged on the base 1, and the temperature control structure 4 comprises a heating seat 40, a refrigeration seat 41 and a smart control unit, and the two beakers 2 are respectively connected to the heating seat 40 and the refrigeration seat 41, and the two beakers 2 can be in close contact to conduct temperature. The heating seat 40 can refer to the existing heating copper ring, and the refrigeration seat 41 can refer to the existing refrigeration patch.

[0031] The base 1 is provided with a plurality of limiting blocks 10 above the heating seat 40 and the refrigeration seat 41, and the shape of the limiting block 10 is adapted to the edge of the outer wall of the beaker 2.

[0032] The temperature feedback module 5 is arranged on the base 1, and the temperature feedback module 5 can simultaneously and respectively monitor and display the liquid temperature in the beaker 2 and the test tube 3.

[0033] The temperature feedback module 5 can be a thermal imaging camera 50, or a combination of a display screen 8 and a plurality of temperature probes 9. In this embodiment, in order to facilitate teaching and to facilitate students to determine the change of heat conduction, the thermal imaging camera 50 and the temperature probe 9 are used simultaneously.

[0034] The thermal imaging camera 50 is connected to the base 1 through a positioning bracket 7, and the positioning bracket 7 can drive the thermal imaging camera 50 to flip.

[0035] The positioning bracket 7 comprises a fixed rod 70, a movable rod 71 and a positioning rod 72, the fixed rod 70 is a "T" shaped structure arranged on the base 1, the positioning rod 72 is connected to the movable rod 71 through a rotating shaft 73, and the movable rod 71 and the positioning rod 72 can be horizontally pulled out of the fixed rod 70, the outer side wall of the movable rod 71 and the positioning rod 72 is provided with a positioning strip 74, the inside of the fixed rod 70 is provided with a strip-shaped groove 75 adapted to the positioning strip 74, and the fixed rod 70 is provided with a movable groove 76 for horizontal displacement of the rotating shaft 73, and the strip-shaped groove 75 is provided with a damping inner wall 77 (such as thin layer of silica gel or thin layer of rubber).

[0036] The thermal imaging camera 50 is connected with an extension screen 51, and the extension screen 51 is in circuit connection with the thermal imaging camera 50. The positioning rod 72 is provided with a clamping part 78 near the outer wall of the end of the movable rod 71. When the positioning rod 72 is perpendicular to the movable rod 71, the clamping part 78 is in contact with the lower side of the movable rod 71. The width of the clamping part 78 is adapted to the shaft 73, that is, the movable groove 76 can also be used for displacement of the clamping part 78.

[0037] In order to avoid damage to the thermal imaging camera 50 and the extension screen 51 during adjustment, the thermal imaging camera 50 and the extension screen 51 are provided with a protective pad 52 near the ground.

[0038] As to the combination scheme of the display screen 8 and the multiple groups of temperature probes 9, the display screen 8 is arranged on the base 1, the temperature probe 9 adopts a micro contact temperature sensor of the prior art, the temperature probe 9 is connected with the display screen 8 through a line or a wireless transmission module, and the multiple groups of temperature probes 9 can be respectively arranged in the liquid in the beaker 2 and the test tube 3.

[0039] The wireless transmission module includes but is not limited to Bluetooth, infrared transmission, and local area network protocol module.

[0040] In addition, the base 1 is also provided with a power supply interface and a control switch connected with an internal intelligent control unit circuit. The power supply interface and the control switch can be used for pre-charging or connecting a power supply. The heating seat 40 and the refrigeration seat 41 can be controlled separately through the control switch. Similarly, the thermal imaging camera 50 is also provided with a corresponding power supply interface and a switch structure.

[0041] In the use process, first, appropriate amount of water is filled in the beaker 2 and the test tube 3, and the two beakers 2 are arranged above the heating seat 40 and the refrigeration seat 41, and the beaker 2 is arranged in the surrounding of the limiting blocks 10. At this time, the two beakers 2 are in close contact. Then, the power supply of the base 1 is connected, and the internal temperature control structure 4 is started. The heating seat 40 gradually conducts heat to the beaker 2 above, and the refrigeration seat 41 conducts cold energy to the beaker 2 above.

[0042] If the heat conduction effect is to be observed separately, the heating seat 40 can be operated separately. The water in the beaker 2 above the heating seat 40 will gradually be heated. The water in the test tube 3 in the beaker 2, the water in the adjacent beaker 2, and the water in the test tube 3 in the adjacent beaker 2 will also be heated gradually by conduction. The students can intuitively understand the change process of heat conduction through the heat image displayed on the extension screen 51 of the thermal imaging camera 50 above and the temperature value fed back to the display screen 8 by the temperature probe 9.

[0043] And through the operation of the refrigeration seat 41, the heating seat 40 is closed, so that the water in the corresponding beaker 2, test tube 3 on the refrigeration seat 41 gradually cools down, at this time, the heat image displayed on the extension screen 51 of the thermal imaging camera 50 and the temperature value fed back to the display screen 8 by the temperature probe 9 can be used to intuitively understand the change process of the heat gradually leaving.

[0044] And about the observation angle of thermal imaging, the embodiment has two ways, one is the top-down angle observation, and the other is from front to back observation. The top-down angle is the state shown in Figure 1 , and the front-to-back observation is the state shown in Figure 6 . If you want to switch the state, you can first pull the clamping part 78 or the extension screen 51, so that the movable rod 71 and the positioning rod 72 are pulled out of the fixed rod 70. In this process, the damping inner wall 77 can limit the pulling state, and can be locked at any time when released. Then, the positioning rod 72 can be turned to be perpendicular to the movable rod 71, the clamping part 78 is in contact with the lower side of the movable rod 71, and the clamping part 78 limits the turning operation of the positioning rod 72, and at this time, the thermal imaging camera 50 is located in front of the beaker 2.

[0045] The above is the preferred embodiment of the present application. For ordinary skilled in the art, without departing from the principles of the present application, a number of variations and improvements can also be made, which should also be considered as the protection scope of the present application.

Claims

1. 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The heat conduction experiment teaching aid according to claim 1, characterized in that: ​ 3. The heat conduction experiment teaching aid according to claim 2, characterized in that: ​ 4. The heat conduction experiment teaching aid according to claim 3, characterized in that: ​ 5. The heat conduction experiment teaching aid according to claim 4, characterized in that: ​ 6. The heat conduction experiment teaching aid according to claim 1, characterized in that: ​ 7. The heat conduction experiment teaching aid according to claim 1, characterized in that: ​

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