An experimental apparatus

Abstract

The utility model provides an experimental apparatus relates to experimental apparatus technical field to alleviate the higher cost of experimental apparatus in the prior art, the maintenance difficulty is big, the technical problem of inconvenient teaching and daily maintenance, through fixed base and apparatus body fixed connection, to constitute the real experimental apparatus of different types or model, through setting first identification circuit of fixed base and setting second identification circuit of apparatus body, to determine the specific category and model of experimental apparatus, to simplify the structure of experimental apparatus, optimize the maintenance process of experimental apparatus, reduce the maintenance cost, improve the effect and efficiency of experiment.

Description

Technical Field

[0001] This utility model relates to the field of experimental equipment technology, and in particular to an experimental device. Background Technology

[0002] Existing experimental equipment can be divided into fully simulated and fully real. Fully simulated experimental equipment cannot truly reflect the operation of the power system and cannot simulate the safety and fault handling in actual power operation, resulting in poor teaching and experimental effects. On the other hand, fully real experimental equipment (such as experimental equipment switches, sliding rheostats, and voltmeters) can truly reflect the operation of the power system, but real experimental equipment is more expensive, more difficult to maintain, and inconvenient for teaching and daily maintenance. Utility Model Content

[0003] The purpose of this utility model is to provide an experimental device to alleviate the technical problems of high cost, difficult maintenance, and inconvenience for teaching and daily maintenance of existing experimental devices.

[0004] Firstly, this application provides an experimental apparatus, including: A fixed base is provided, and the fixed base is equipped with a first identification circuit; The device body includes a device base plate, device components, and a second identification circuit. The device components are connected to a fixed base through the device base plate. The first identification circuit is connected to the second identification circuit.

[0005] Optionally, the first identification circuit includes a sampling auxiliary resistor and an identification terminal connected to the sampling auxiliary resistor.

[0006] Optionally, the second identification circuit includes an identification resistor and a first capacitor connected to the identification resistor.

[0007] Optionally, the identification resistor includes a first identification resistor and / or a second identification resistor.

[0008] Optionally, this application provides an experimental apparatus, which further includes a state circuit, comprising a state resistor and a second capacitor and a third capacitor respectively connected to the state resistor.

[0009] Optionally, the first identification circuit also includes a transmission end, which is connected to the status circuit.

[0010] Optionally, this application provides an experimental apparatus, which also includes a connecting structure, through which the apparatus body is connected to a fixed base; The connection structure includes a connection component, which includes a first connection component and a second connection component. The first connection component is connected to the end face of the fixed base facing the equipment body, and the second connection component is connected to the end face of the equipment base plate away from the equipment components. The first connection component and the second connection component are detachably connected.

[0011] Optionally, the connection structure further includes a positioning component, which includes a first positioning element and a second positioning element. The first positioning element is connected to the end face of the fixed base facing the equipment body, and the second positioning element is connected to the end face of the equipment base plate away from the equipment components. The first positioning element and the second positioning element are detachably connected.

[0012] Optionally, the first positioning element and the second positioning element are magnetically connected.

[0013] Optionally, a fixing component is provided at the end of the fixed base away from the equipment body.

[0014] This utility model provides an experimental apparatus that is fixedly connected to the apparatus body via a fixed base to form real experimental apparatus of different types or models. A first identification circuit on the fixed base and a second identification circuit on the apparatus body are used to determine the specific category and model of the experimental apparatus. The experimental apparatus provided in this application alleviates the technical problems of high cost, difficult maintenance, and inconvenience for teaching and daily maintenance of existing experimental apparatus. It simplifies the structure of the experimental apparatus, optimizes the maintenance process, reduces maintenance costs, and improves the effectiveness and efficiency of experiments. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the structure of an experimental apparatus provided in an embodiment of this utility model; Figure 2 A schematic diagram of the first identification circuit provided in an embodiment of this utility model; Figure 3 A schematic diagram of the second identification circuit provided in an embodiment of this utility model; Figure 4 A schematic diagram of the state circuit provided for an embodiment of this utility model; Figure 5 One of the structural schematic diagrams of the connection structure provided in the embodiment of this utility model; Figure 6A second schematic diagram of the connection structure provided in an embodiment of this utility model; Figure 7 A schematic diagram of the fixing component provided in an embodiment of this utility model.

[0017] Icons: 100-Fixed base; 200-Equipment body; 210-Equipment component; 220-Equipment base plate; 300-First identification circuit; 400-Second identification circuit; 500-Status circuit; 600-Connection structure; 610-First connector; 620-Second connector; 630-Third connector; 640-Fourth connector; 710-First positioning component; 720-Second positioning component; 800-Fixing assembly. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0021] This application provides an experimental apparatus, see the attached embodiment. Figure 1 As shown, the experimental equipment provided in this application embodiment includes: a fixed base 100 and an equipment body 200, wherein the fixed base 100 is provided with a first identification circuit 300; the equipment body 200 includes an equipment base plate 220, an equipment component 210 and a second identification circuit 400, the equipment component 210 is connected to the fixed base 100 through the equipment base plate 220; the first identification circuit 300 is connected to the second identification circuit 400.

[0022] In this embodiment, the equipment components 210 include, but are not limited to, knife switches, sliding rheostats, light bulbs, voltmeters, and ammeters. The equipment components 210 are connected to the fixed base 100 via an equipment base plate 220 to form different types and models of experimental equipment. The knife switches are used to control the on / off state of the circuit, ensuring the safe conduct of the experiment. The sliding rheostat changes the current and voltage in the circuit by adjusting its resistance to meet the needs of different experiments. The light bulb, as a load, can visually display the current and voltage in the circuit. The voltmeter is used to measure the voltage value in the circuit, helping to analyze the circuit's operating state. The ammeter is used to measure the current value in the circuit, also helping to evaluate circuit performance.

[0023] The present application provides a method to connect a fixed base 100 to an apparatus body 200 with different apparatus components 210 to form a variety of experimental apparatus, thereby reducing the cost of experimental apparatus.

[0024] In this embodiment of the application, the type and model of the current experimental equipment can be determined by the first identification circuit 300 and the second identification circuit 400. The first identification circuit 300 includes a sampling auxiliary resistor and an identification terminal connected to the sampling auxiliary resistor. The second identification circuit 400 includes an identification resistor and a first capacitor connected to the identification resistor. Further, the identification resistor includes the first identification resistor and / or the second identification resistor.

[0025] In practical implementation, for example, the experimental equipment is a knife switch. The fixed base 100 of the knife switch is provided with a first identification circuit 300 interface, and the equipment body 200 is provided with a second identification circuit 400 interface. Both the first identification circuit 300 interface and the second identification circuit 400 interface are spring pin interfaces. The first identification circuit 300 interface J1 corresponds to the first identification circuit 300 as follows: Figure 2 As shown, the first identification circuit 300 includes a sampling auxiliary resistor R31, a power supply terminal, and a communication pin. The power supply terminal includes a positive power supply VCC and a negative power supply GND, which provides operating power to the first identification circuit 300 and the second identification circuit 400 to ensure stable loop current. One end of the sampling auxiliary resistor R31 is connected to the communication pin 9, and the other end is connected to the second identification circuit 400 through the communication pin 3. The sampling auxiliary resistor R31 is used to limit the current input from the second identification circuit 400 to the first identification circuit 300 to prevent excessive input current from damaging the fixed base 100 and to ensure the stability and reliability of the identification circuit. The second identification circuit 400 interface corresponds to the second identification circuit 400, such as... Figure 3As shown, the second identification circuit 400 includes a first identification resistor R5, a second identification resistor R3, and a first capacitor C1. The first identification resistor R5 and the second identification resistor R3 form a resistor network with a specific resistance value, which is used to determine the type and model of the experimental equipment. The first capacitor C1 is used to eliminate interference signals to ensure accurate measurement of the resistance value of the resistor network. When the equipment component 210 is a knife switch, after the interface of the first identification circuit 300 and the interface of the second identification circuit 400 are connected, the sampling auxiliary resistor R31 of the first identification circuit 300 is connected to the first identification resistor R3 and / or the second identification resistor R5 in the second identification circuit 400 to determine that the current experimental equipment is a knife switch of a certain model.

[0026] It should be noted that different types and models of experimental equipment can form the same type and model of experimental equipment by setting different resistance values ​​or combinations of resistances, thus forming a unique resistance network characteristic. That is, the same type and model of experimental equipment has a unique resistance value.

[0027] In this embodiment of the application, the experimental equipment also includes a state circuit 500, which includes a state resistor R7 and a second capacitor C2 and a third capacitor C3 connected to the state resistor respectively; the first identification circuit 300 also includes a transmission terminal, which is connected to the state circuit 500.

[0028] In a specific embodiment, for example, when the experimental equipment is a mechanical knife switch, the state circuit 500 is as follows: Figure 4 As shown, the state circuit 500 includes a state resistor R7, a second capacitor C2 and a third capacitor C3 connected to the state resistor R7, and an interface J2 connected to the device component 210. The state resistor R7 is used for current limiting protection to prevent short circuits from damaging the state circuit 500. The second capacitor C2 and the third capacitor C3 are used to filter out high-frequency interference from the power supply VCC, ensuring voltage stability in the state circuit 500 and improving signal reliability. When the mechanical knife switch is in the closed state, the two pins of the interface J2 are short-circuited due to the closed state, and the state resistor R7 and the interface J2 form a loop in the state circuit 500, outputting a low-level state signal (closed signal). When the mechanical knife switch is in the open state, the two pins of the interface J2 are open, and the state resistor R7 and the interface J2 cannot form a loop, outputting a high-level state signal (open signal).

[0029] The transmission terminal (i.e., communication pin 10) of the first identification circuit 300 is used to receive the status signal output by the status circuit 500, and send the status signal and the resistance value of the resistor network to the user terminal through the first identification circuit 300.

[0030] In this embodiment, the experimental apparatus further includes a connecting structure 600, through which the apparatus body 200 is connected to the fixed base 100. The connecting structure 600 includes connecting components, each comprising a first connecting component and multiple second connecting components. One end of each of the first and second connecting components is connected to the apparatus body 200, and the other end is connected to the fixed base 100. The second connecting components are located at the included angle between two adjacent sides of the fixed base 100. The first connecting component includes a first connector 610 and a second connector 620. One end of the first connector 610 is connected to the apparatus body 200, and the other end is connected to one end of the second connector 620. The other end of the second connector 620 is connected to the fixed base 100. The second connecting component includes a third connector 630 and a fourth connector 640. One end of the third connector 630 is connected to the apparatus body 200, and the other end is connected to one end of the fourth connector 640. The other end of the fourth connector 640 is connected to the fixed base 100.

[0031] In the embodiments of this application, such as Figure 5 and Figure 6 As shown, when the first connector 610 and the second connector 620 are connected to a spring probe, the first connector 610 is the needle shaft portion of the spring probe, and the second connector 620 is a mating portion adapted to the spring probe. When the first connector 610 and the second connector 620 need to be connected, the needle shaft portion of the spring probe moves toward the mating portion and contacts it. Under the action of elasticity, the needle shaft tightly abuts against the mating portion, thereby forming an electrical connection or a mechanical connection.

[0032] By employing a spring probe connection between the first connector 610 and the second connector 620, a tight contact between the two can be achieved through the spring force, ensuring the stability and reliability of the connection between the fixed base 100 and the equipment body 200. The spring probe connection method also has good buffering performance; when subjected to a certain degree of vibration or slight displacement, the extension and contraction of the spring can compensate for positional deviations and maintain the connection status unaffected. Furthermore, the spring probe connection has a compact structure, which helps save installation space and is suitable for occasions with strict dimensional requirements.

[0033] Furthermore, the third connector 630 and the fourth connector 640 are magnetically connected. The third connector 630 is provided with a permanent magnet, and the fourth connector 640 is provided with a ferromagnetic material. Alternatively, the third connector 630 is provided with a first magnetic element, and the fourth connector 640 is provided with a second magnetic element. Both the first and second magnetic elements are permanent magnets, and the end faces of the first and second magnetic elements that abut against each other are opposite magnetic poles.

[0034] Furthermore, a permanent magnet is provided on the third connector 630, and a ferromagnetic material is provided on the fourth connector 640. When the third connector 630 and the fourth connector 640 need to be connected, the permanent magnet on the third connector 630 and the ferromagnetic material on the fourth connector 640 are brought close together. The permanent magnet will attract the ferromagnetic material, thereby achieving a magnetic connection between the third connector 630 and the fourth connector 640. Alternatively, a first magnetic element is provided on the third connector 630, and a second magnetic element is provided on the fourth connector 640. Both the first and second magnetic elements are permanent magnets, and the end faces of the first and second magnetic elements that abut against each other are opposite magnetic poles. When the third connector 630 and the fourth connector 640 need to be connected, the end faces of the first and second magnetic elements that abut against each other are brought close together. Due to the attraction between opposite magnetic poles, the first and second magnetic elements will attract each other, thereby achieving a connection between the third connector 630 and the fourth connector 640.

[0035] Furthermore, the magnetic connection using the third connector 630 and the fourth connector 640 enables the device body 200 to be quickly connected to the fixed base 100. The connection process is simple and does not require complicated steps. In addition, the magnetic connection has good stability and can maintain the connection without being subjected to large external forces, making it difficult to separate.

[0036] In one optional embodiment, the first positioning element 710 is a positioning hole, and the second positioning element 720 is a first positioning post.

[0037] Furthermore, the positioning hole is a stepped hole, and the first positioning post is a stepped shaft that is adapted to the positioning hole.

[0038] In the embodiments of this application, such as Figure 1 and 2 As shown, the positioning structure also includes a first positioning element 710 and a second positioning element 720. The first positioning element 710 and the second positioning element 720 enhance the overall stability of the fixed base 100 and the equipment body 200, ensuring reliable use under different conditions. Furthermore, the first positioning element 710 and the second positioning element 720 add fixing points to the equipment body 200 on the fixed base 100, thereby strengthening the overall stability of the experimental equipment and preventing the equipment body 200 from shaking due to force during use, thus ensuring the accuracy and safety of the experimental process. In this embodiment, a fixing component 800 is provided at the end of the fixed base 100 away from the equipment body 200.

[0039] In the embodiments of this application, such as Figure 7As shown, the fixing component 800 is a suction cup type fixing component 800, which includes a suction cup body, a negative pressure structure, and a control structure. The negative pressure structure and the control structure are located inside the fixing base 100. The suction cup body is located on the end face of the fixing base 100 away from the equipment body 200. The suction cup body is connected to the negative pressure structure, and the negative pressure structure is connected to the control structure. The control structure controls the negative pressure structure to form a negative pressure inside the suction cup body, thereby fixing the experimental equipment to a smooth surface, such as a blackboard or a display screen.

[0040] The experimental equipment provided in this application embodiment is fixed to the screen or experimental table by a fixed base, replacing the traditional real experimental equipment and thus saving experimental costs. By fixing different equipment bodies to the fixed base through a connecting structure, experimental equipment with different functions can be simulated. They can be combined according to the simulated experimental requirements to form a fully functional virtual experimental device. Users can observe and operate the equipment bodies 200 on the screen to achieve the teaching effect of actual experiments.

[0041] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0042] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0043] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An experimental apparatus, characterized in that, include: A fixed base, wherein the fixed base is provided with a first identification circuit; The device body includes a device base plate, device components, and a second identification circuit. The device components are connected to the fixed base through the device base plate. The first identification circuit is connected to the second identification circuit.

2. The experimental apparatus according to claim 1, characterized in that, The first identification circuit includes a sampling auxiliary resistor and an identification terminal connected to the sampling auxiliary resistor.

3. The experimental apparatus according to claim 2, characterized in that, The second identification circuit includes an identification resistor and a first capacitor connected to the identification resistor.

4. The experimental apparatus according to claim 3, characterized in that, The identification resistor includes a first identification resistor and / or a second identification resistor.

5. The experimental apparatus according to claim 1, characterized in that, It also includes a state circuit, which includes a state resistor and a second capacitor and a third capacitor respectively connected to the state resistor.

6. The experimental apparatus according to claim 5, characterized in that, The first identification circuit also includes a transmission end, which is connected to the status circuit.

7. The experimental apparatus according to claim 1, characterized in that, It also includes a connection structure, through which the device body is connected to the fixed base; The connection structure includes a connection component, which includes a first connection component and a plurality of second connection components. One end of the first connection component and the second connection component are respectively connected to the equipment body, and the other end are respectively connected to the fixed base. The second connection component is located at the included angle position of two adjacent sides of the fixed base. The first connecting component includes a first connector and a second connector. One end of the first connector is connected to the device body, and the other end is connected to one end of the second connector. The other end of the second connector is connected to the fixed base. The second connecting component includes a third connector and a fourth connector. One end of the third connector is connected to the device body, and the other end is connected to one end of the fourth connector. The other end of the fourth connector is connected to the fixed base.

8. The experimental apparatus according to claim 7, characterized in that, The connection structure further includes a positioning component, which includes a first positioning element and a second positioning element. The first positioning element is connected to the end face of the fixed base facing the device body, and the second positioning element is connected to the end face of the device base plate away from the device element. The first positioning element and the second positioning element are detachably connected.

9. The experimental apparatus according to claim 7, characterized in that, The first connector and the second connector are connected by a spring probe; The third connector and the fourth connector are magnetically connected.

10. The experimental apparatus according to any one of claims 1 to 9, characterized in that, The fixed base has a fixing component at the end away from the device body.

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