Analog circuit experiment box for refrigeration engineering maintenance teaching

Abstract

The utility model discloses an analog circuit experiment box for refrigeration engineering maintenance teaching, and relates to the field of circuit experiment boxes. The turnover box comprises the lower box body and the upper box body, the lower box body and the upper box body are provided with the movable plate, the movable plate is rotationally connected with the upper box body through the hinge, and through the design that the movable plate is rotationally connected with the upper box body through the hinge, the function of easily turning over the movable plate is achieved firstly; a teacher can quickly and conveniently switch the display surfaces of the movable plate according to actual requirements in the teaching process, so that the first analog circuit group on the top surface and the second display drawing on the bottom surface are respectively displayed, the flexibility and interactivity of teaching are improved, and the teacher can conveniently and quickly switch the display surfaces of the movable plate according to the understanding condition and the teaching progress of students. The teaching content and the display mode are adjusted in time, and a second analog circuit group at the bottom in the lower box body and a first display drawing on the inner side of the upper box body are arranged, so that visual and rich circuit examples and references are provided for learners.

Description

Technical Field

[0001] This utility model relates to the field of circuit experiment boxes, specifically a simulation circuit experiment box for teaching refrigeration engineering maintenance. Background Technology

[0002] The simulated circuit experiment box for refrigeration engineering maintenance teaching is a professional device integrating teaching and practice. It incorporates various experimental circuits and components, aiming to help students deeply understand the circuit principles and maintenance techniques in refrigeration engineering. The experiment box is designed to be safe and easy to operate. Through various experiments, including discrete component circuits, integrated operational amplifier circuits, and comprehensive experiments, it enhances students' hands-on skills and innovative thinking. Currently used circuit experiment boxes need to meet diverse circuit teaching needs in practical teaching. However, their internal space has limitations in terms of circuit installation capacity and display clarity. Specifically, the number of circuits that can be configured in the experiment box is relatively limited, and the installation density of simulated circuits in a single display area is insufficient. This not only restricts the breadth and depth of circuit experiment teaching but also weakens the interactivity and intuitiveness of the experiment box in the teaching process, thus affecting the overall teaching effect and students' learning experience. Utility Model Content

[0003] Based on this, the purpose of this utility model is to provide a simulated circuit experimental box for teaching refrigeration engineering maintenance, so as to solve the technical problem that the number of simulated circuits installed in a single area is small, which affects the teaching effect of the circuit experimental box.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a simulation circuit experimental box for teaching refrigeration engineering maintenance, comprising a lower box and an upper box, wherein the lower box and the upper box are provided with a movable plate, and the movable plate is rotatably connected to the upper box via a hinge, wherein a first simulation circuit group is provided on the top surface of the movable plate, and a second display drawing is provided on the bottom surface, wherein the second simulation circuit group is provided on the inner bottom of the lower box, and the first display drawing is provided on the inner side of the upper box.

[0005] By adopting the above technical solution, this analog circuit experiment box achieves the function of double-layer display and teaching through the combination of the lower and upper boxes and the ingenious design of the movable plate. The movable plate is connected to the upper box by a hinge, which allows the movable plate to be easily flipped up, thereby displaying the first analog circuit group on the top and the second display drawing on the bottom, which greatly improves the flexibility and interactivity of teaching. Teachers can quickly switch the display content according to teaching needs.

[0006] Furthermore, the first illustrated drawing is a circuit diagram of the first analog circuit group, and the second illustrated drawing is a circuit diagram of the second analog circuit group.

[0007] By adopting the above technical solutions, learners can directly compare the physical circuit with the circuit diagram, thereby gaining a more intuitive understanding of the circuit's working principle and connection method. This intuitive teaching method helps reduce learners' cognitive burden and improve their learning efficiency.

[0008] Furthermore, the movable plate is positioned opposite to the lower and upper boxes and is embedded within the lower and upper boxes.

[0009] By adopting the above technical solutions, not only is the overall structure of the experimental box more compact and stable, but the space occupied is also reduced, making it easy to carry and store. This allows the analog circuit experimental box to easily adapt to various environments in refrigeration engineering maintenance teaching sites or laboratories.

[0010] Furthermore, a first protective shell and a second protective shell are respectively fastened to the outer sides of the first display drawing and the second display drawing to cover and protect them.

[0011] By adopting the above technical solution, effective shielding and protection are provided for the first and second display drawings, which can prevent the drawings from being damaged or contaminated during long-term use, thereby extending the service life of the experimental chamber.

[0012] Furthermore, the first protective shell, the second protective shell, the upper box, and the movable plate are detachable, and the first protective shell and the second protective shell are transparent frame structures.

[0013] By adopting the above technical solutions, the replacement and updating of drawings become more flexible and convenient. Teachers can change or adjust the content of drawings at any time according to teaching needs or student feedback, thereby meeting the needs of different teaching stages and levels.

[0014] Furthermore, support feet are installed at the four corners of the lower housing, and the inner side of the support feet is provided with a limiting part to restrict the support movable plate. A buckle groove is provided on one side of the movable plate.

[0015] By adopting the above technical solution, a stable support and balance are provided for the analog circuit experiment box, ensuring stability and safety during the teaching process. At the same time, the limiting part on the inner side of the support foot restricts the flipping angle and position of the movable plate.

[0016] Furthermore, the lower housing is fastened to the upper housing by a latch, and a handle is provided on one side of the housing.

[0017] By adopting the above technical solutions, the safety and integrity of the experimental box during carrying or transportation are ensured, the loss or damage of internal parts of the experimental box is prevented, and a reliable guarantee is provided for teaching.

[0018] In summary, the present invention has the following main advantages:

[0019] 1. This utility model utilizes a movable plate, which is connected to the upper housing via a hinge for rotation. This design allows the movable plate to be easily flipped, enabling teachers to quickly and conveniently switch the display surfaces of the movable plate according to actual needs during teaching. This allows for the separate display of the first analog circuit group on the top surface and the second display diagram on the bottom surface, greatly enhancing the flexibility and interactivity of teaching. Teachers can adjust the teaching content and display methods in a timely manner based on students' understanding and teaching progress. The second analog circuit group at the bottom of the lower housing and the first display diagram on the inside of the upper housing provide learners with intuitive and rich circuit examples and references.

[0020] 2. This utility model effectively protects the drawings by setting up a first protective shell, with the first and second protective shells respectively fastened to the outer sides of the first and second display drawings. In daily use, the drawings may be affected by dust, stains or accidental scratches, and the fastening of the protective shells can isolate these external factors, ensuring the clarity and integrity of the drawings, thereby extending the service life of the drawings. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0023] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0024] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0025] In the diagram: 1. Lower housing; 2. Upper housing; 3. Movable plate; 4. Hinge; 5. First analog circuit group; 6. Second analog circuit group; 7. First display drawing; 8. Second display drawing; 9. First protective shell; 10. Second protective shell; 11. Support foot; 12. Limiting part; 13. Lock; 14. Handle; 15. Snap groove. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] 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. 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" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", and "setting" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0029] The embodiments of this utility model will be described below based on its overall structure.

[0030] Example 1:

[0031] A simulated circuit experiment box for teaching refrigeration engineering maintenance, such as Figures 1-4 As shown, the device includes a lower housing 1 and an upper housing 2. Both housings have a movable plate 3, which is rotatably connected to the upper housing 2 via a hinge 4. The top surface of the movable plate 3 displays a first analog circuit group 5, and the bottom surface displays a second display diagram 8. The bottom inner surface of the lower housing 1 displays a second analog circuit group 6, and the inner side of the upper housing 2 displays a first display diagram 7. This analog circuit experimental box, through the combination of the lower housing 1 and the upper housing 2, and the ingenious design of the movable plate 3, achieves a dual-layer display and teaching function. The movable plate 3, rotatably connected to the upper housing 2 via the hinge 4, allows for easy rotation, displaying the first analog circuit group 5 on the top surface and the second display diagram 8 on the bottom surface. This greatly improves the flexibility and interactivity of teaching, allowing teachers to quickly switch between display content according to teaching needs. Simultaneously, the placement of the second analog circuit group 6 at the bottom inner surface of the lower housing 1 and the first display diagram 7 on the inner side of the upper housing 2 provides learners with abundant circuit examples and references, helping them to more deeply understand the circuit principles and structures in refrigeration engineering maintenance.

[0032] See Figure 1 , Figure 2 , Figure 3The first display diagram 7 is the circuit diagram of the first analog circuit group 5, and the second display diagram 8 is the circuit diagram of the second analog circuit group 6. This allows learners to directly compare the actual circuit with the circuit diagram, thus gaining a more intuitive understanding of the circuit's working principle and connection method. This intuitive teaching method helps reduce learners' cognitive burden and improve their learning efficiency. At the same time, the correspondence between the second display diagram 8 and the second analog circuit group 6 provides learners with another circuit example for reference, helping them consolidate and expand their learned circuit knowledge. This dual display and teaching method makes the application of the analog circuit experiment box in teaching more widespread and in-depth.

[0033] See Figure 1 , Figure 2 , Figure 3 The movable plate 3 is positioned opposite to the lower box 1 and the upper box 2, and is embedded in the lower box 1 and the upper box 2. This not only makes the overall structure of the experimental box more compact and stable, but also reduces space occupation, making it easy to carry and store. This allows the analog circuit experimental box to easily adapt to various environments in refrigeration engineering maintenance teaching sites or laboratories. At the same time, the embedded structure also increases the stability of the movable plate 3, which can remain stable even during use, thereby ensuring the continuity and stability of teaching.

[0034] Example 2:

[0035] See Figure 1 , Figure 2 , Figure 3 The first display drawing 7 and the second display drawing 8 are respectively fastened with a first protective shell 9 and a second protective shell 10, which are used to shield and protect the first display drawing 7 and the second display drawing 8. This provides effective shielding and protection for the first display drawing 7 and the second display drawing 8, and can prevent the drawings from being damaged or contaminated during long-term use, thereby extending the service life of the experimental box. At the same time, the fastening design of the protective shell also makes the replacement and cleaning of the drawings more convenient and quick. This practical and beautiful design makes the analog circuit experimental box perform better in teaching.

[0036] See Figure 1 , Figure 2 , Figure 3The first protective shell 9 and the second protective shell 10 are detachable from the upper box 2 and the movable plate 3. The first protective shell 9 and the second protective shell 10 are transparent frame structures, which makes the replacement and updating of drawings more flexible and convenient. Teachers can change or adjust the content of the drawings at any time according to teaching needs or student feedback, thereby meeting the needs of different teaching stages and levels. At the same time, the transparent frame structure design allows learners to clearly see the circuit diagrams and instructions on the drawings without being blocked by the frame, which not only improves the transparency of teaching, but also enhances the learners' interest and enthusiasm.

[0037] See Figure 2 , Figure 3 , Figure 4 Support feet 11 are installed at the four corners of the lower housing 1. Limiting parts 12 are provided on the inner side of the support feet 11 to limit the support of the movable plate 3. A fastening groove 15 is provided on one side of the movable plate 3, which provides stable support and balance for the analog circuit experiment box, ensuring stability and safety during the teaching process. At the same time, the limiting parts 12 on the inner side of the support feet 11 limit the rotation angle and position of the movable plate, thereby preventing the movable plate 3 from shaking or falling off during use. The fastening groove 15 provides the user with a clearer point of force application to the movable plate 3.

[0038] See Figure 1 , Figure 2 , Figure 3 The lower box 1 is fastened to the upper box 2 by a latch 13. A handle 14 is provided on one side of the box to ensure the safety and integrity of the experimental box during carrying or transportation, prevent the loss or damage of internal parts, and provide reliable protection for teaching. At the same time, the handle 14 on one side of the box makes it more convenient and easier to carry and move the experimental box. Whether in the teaching site or in the laboratory, teachers can easily carry and move the experimental box, thus meeting the needs of different teaching scenarios.

[0039] The implementation principle of this utility model is as follows: The experimental box adopts a double-layer structure of lower box 1 and upper box 2. The movable plate 3 between the two can be flexibly connected and flipped. The top and bottom surfaces of the movable plate 3 are respectively arranged with the first analog circuit group 5 and the second display drawing 8, which greatly enriches the teaching content and display space, while maintaining the compactness of the box. A one-to-one correspondence is established between the first analog circuit group 5 and the first display drawing 7, and between the second analog circuit group 6 and the second display drawing 8, so that learners can intuitively compare the physical circuit first analog circuit group 5 with its circuit diagram first display drawing 7, thereby deepening their understanding of circuit principles and structure.

[0040] The first protective shell 9 and the second protective shell 10 effectively protect the display drawings and prevent them from being damaged during use. At the same time, the support feet 11 installed at the four corners of the lower box 1 and the limiting parts 12 on the inside of the feet together ensure the stability and safety of the movable plate 3, making the experimental box more stable and reliable during use.

[0041] All parts not covered in this utility model are the same as or can be implemented using existing technologies, and will not be described in detail here.

[0042] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A simulation circuit experiment box for teaching refrigeration engineering maintenance, characterized in that: It includes a lower box (1) and an upper box (2). The lower box (1) and the upper box (2) are provided with a movable plate (3), and the movable plate (3) is rotatably connected to the upper box (2) through a hinge (4). The top surface of the movable plate (3) is provided with a first analog circuit group (5), and the bottom surface is provided with a second display drawing (8). The inner bottom of the lower box (1) is provided with a second analog circuit group (6), and the inner side of the upper box (2) is provided with a first display drawing (7).

2. The simulation circuit experiment box for teaching of refrigeration engineering maintenance according to claim 1, characterized in that: The first display drawing (7) is a circuit diagram of the first analog circuit group (5), and the second display drawing (8) is a circuit diagram of the second analog circuit group (6).

3. The simulation circuit experiment box for teaching of refrigeration engineering maintenance according to claim 1, characterized in that: The movable plate (3) is positioned opposite to the lower box (1) and the upper box (2), and is embedded in the lower box (1) and the upper box (2).

4. The analog circuit lab kit for teaching repair of refrigeration engineering of claim 1, wherein: The first display drawing (7) and the second display drawing (8) are respectively fitted with a first protective shell (9) and a second protective shell (10) to cover and protect the first display drawing (7) and the second display drawing (8).

5. The analog circuit lab kit for teaching repair of refrigeration engineering of claim 4, wherein: The first protective shell (9), the second protective shell (10), the upper box (2), and the movable plate (3) are detachable, and the first protective shell (9) and the second protective shell (10) are transparent frame structures.

6. The analog circuit lab kit for teaching repair of refrigeration engineering of claim 1, wherein: Support feet (11) are installed at the four corners of the lower box (1). The inner side of the support feet (11) is provided with a limiting part (12) to limit the support movable plate (3). A buckle groove (15) is provided on one side of the movable plate (3).

7. The analog circuit lab kit for teaching repair of refrigeration engineering of claim 1, wherein: The lower box (1) is fastened to the upper box (2) by a latch (13), and a handle (14) is provided on one side of the box.

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