Digital circuit experiment wiring board and digital circuit experiment box

Abstract

The utility model discloses a digital circuit experiment wiring board and digital circuit experiment box relates to teaching equipment technical field, including wiring board, and the chip base and the wiring hole fixed on wiring board, and the chip base with wiring hole constitutes wiring unit group, and the wiring board is fixed with at least one wiring unit group, every wiring unit group in, wiring hole sets up one side at chip base, and the number of wiring hole is same with the pin number of chip base, and wiring hole with each pin of chip base one -to -one corresponds, and chip base is connected into conductive path. The utility model can avoid the mutual influence of plugging chip and plugging wire, improve the experiment efficiency.

Description

Technical Field

[0001] This utility model relates to the field of teaching equipment technology, and in particular to a digital circuit experiment terminal block and a digital circuit experiment box. Background Technology

[0002] Digital circuit experiments typically utilize experimental kits for teaching and practice. These kits contain junction boxes and various circuit modules. The junction box includes chip sockets and wiring holes. The circuit modules include power supply modules, button modules, display modules, pulse generation modules, resistor and capacitor modules, and diode modules. During the experiment, chips are inserted into the chip sockets, wires are inserted into the wiring holes to connect the chips to the various circuit modules, power is turned on, and the phenomena observed complete the experiment.

[0003] Currently, there are two main types of terminal blocks: one is a terminal block made of printed circuit boards, and the other is a breadboard.

[0004] In this type of circuit board, the connector board typically uses an IC locking socket as the chip base and a round-hole connector as the wiring hole. Breadboards, on the other hand, have wiring holes arranged neatly at 2.54mm intervals. Both types of connector boards have wiring holes surrounding each chip (or chip base). However, because the experiments use a large number of wires, the area above the chip is often densely covered by the wires after wiring is completed. Therefore, during the experiment, the chip must be inserted before wiring. If the experimental results are incorrect and a chip replacement is needed, some or all of the wires must be removed, making chip replacement inconvenient. Furthermore, after replacing the chip, the removed wires must be reconnected before testing can continue, further increasing the experimental time and reducing efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a digital circuit experimental wiring board and a digital circuit experimental box to solve the problems existing in the prior art, avoid the mutual interference between inserting and removing chips and inserting and removing wires, and improve experimental efficiency.

[0006] To achieve the above objectives, this utility model provides the following solution: This utility model provides a digital circuit experimental wiring board, including a wiring board, a chip base and wiring holes fixed on the wiring board, wherein the chip base and the wiring holes constitute a wiring unit group, and at least one wiring unit group is fixed on the wiring board; in each wiring unit group, the wiring holes are disposed on one side of the chip base, and the number of wiring holes is the same as the number of pins of the chip base, the wiring holes correspond one-to-one with each pin of the chip base, and the chip base is connected to form a conductive path.

[0007] Preferably, the terminal block is a printed circuit board.

[0008] Preferably, both the chip base and the wiring hole are welded and fixed to the terminal block.

[0009] Preferably, the plurality of wiring holes in each wiring unit group are arranged in two symmetrical rows.

[0010] Preferably, in each of the wiring unit groups, each wiring hole is located on the left, right, upper, or lower side of the chip base.

[0011] Preferably, the chip base is an IC locking socket.

[0012] Preferably, the wiring hole is a round hole plug terminal.

[0013] Preferably, the chip base has 14 or 16 pins.

[0014] Preferably, each of the wiring holes is provided with a number on its outer periphery.

[0015] This utility model also provides a digital circuit experiment box, including the digital circuit experiment terminal board described in any of the above technical solutions.

[0016] The present invention achieves the following technical advantages over the prior art: This utility model provides a digital circuit experiment wiring board, including a wiring board, a chip base and wiring holes fixed on the wiring board, and the chip base and wiring holes constitute wiring unit groups. At least one wiring unit group is fixed on the wiring board, and the number of wiring unit groups can be expanded in actual teaching. In each wiring unit group, the wiring hole is set on one side of the chip base. Therefore, compared with the traditional circumferential setting method, the digital circuit experiment wiring board of this utility model can separate the wiring hole from the chip base, and there is no wire obstruction above the chip after wiring is completed, thus ensuring that chip insertion and removal and wire insertion and removal do not affect each other. At the same time, even if the experimental results are incorrect and the chip needs to be replaced, the chip can be directly inserted or removed without removing the wire first, reducing experimental testing time, increasing experimental efficiency, and avoiding the problem of easy damage caused by repeated handling of wires. The number of wiring holes is the same as the number of pins of the chip base, and the wiring holes correspond one-to-one with each pin of the chip base, and the chip base is connected to form a conductive path, thus meeting the basic digital circuit experiment needs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the digital circuit experimental terminal block in Example 1; In the diagram: 1-Connector board, 2-Chip base, 3-Connection hole. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] The purpose of this invention is to provide a digital circuit experimental wiring board and a digital circuit experimental box to solve the problems existing in the prior art, avoid the mutual interference between inserting and removing chips and inserting and removing wires, and improve experimental efficiency.

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Example 1 like Figure 1As shown, this embodiment provides a digital circuit experiment wiring board, including a wiring board 1, a chip base 2 and wiring holes 3 fixed on the wiring board 1, and the chip base 2 and wiring holes 3 constitute wiring unit groups. At least one wiring unit group is fixed on the wiring board 1, and the number of wiring unit groups can be expanded in actual teaching. In each wiring unit group, the wiring hole 3 is set on one side of the chip base 2. Therefore, compared with the traditional circumferential setting method, the digital circuit experiment wiring board in this embodiment can separate the wiring hole 3 from the chip base 2, and there is no wire obstruction above the chip after wiring is completed, thus ensuring that chip insertion and removal and wire insertion and removal do not affect each other. At the same time, even if the experimental result is incorrect and the chip needs to be replaced, the chip can be directly inserted or removed without removing the wire first, reducing experimental testing time, increasing experimental efficiency, and avoiding the problem of easy damage caused by repeated operation of the wire. The number of wiring holes 3 is the same as the number of pins of the chip base 2. The wiring holes 3 correspond one-to-one with each pin of the chip base 2, and the chip base 2 is connected to form a conductive path, thus meeting the basic digital circuit experiment needs.

[0023] Specifically, in this embodiment, the wiring board 1 is a printed circuit board.

[0024] Both the chip base 2 and the wiring hole 3 are soldered and fixed on the terminal board 1, ensuring good stability.

[0025] The multiple wiring holes 3 in each wiring unit group are symmetrically distributed in two rows.

[0026] In each wiring unit group, each wiring hole 3 is located on the left, right, top, or bottom side of the chip base 2.

[0027] In this embodiment, the chip base 2 is an IC locking seat, which allows the chip to be inserted or removed by pressing the lever on the IC locking seat. This makes chip replacement convenient and improves experimental efficiency.

[0028] Wiring hole 3 uses a round hole socket terminal, which makes the wire connection more secure and improves experimental efficiency.

[0029] As a preferred embodiment, the chip base 2 has 14 pins.

[0030] As another preferred embodiment, the chip base 2 has 16 pins.

[0031] The pin count of the chip socket 2 in this embodiment is set because 14-pin and 16-pin chips are more commonly used in digital circuit experiments, while 8-pin chips are rare. At the same time, 8-pin chips can be used in 14-pin or 16-pin chip sockets 2. Therefore, the design of using 14-pin or 16-pin chip sockets 2 in this embodiment has stronger compatibility and can meet the chip insertion requirements of digital circuit experiments.

[0032] Each wiring hole 3 is numbered on its outer periphery. When the chip base 2 has 14 pins, the wiring holes 3 are numbered 1 to 14. The wiring holes 3 in the lower row are numbered 1 to 7 from left to right, and the wiring holes 3 in the upper row are numbered 8 to 14 from right to left. Similarly, when the chip base 2 has 16 pins, the wiring holes 3 are numbered 1 to 16. The wiring holes 3 in the lower row are numbered 1 to 8 from left to right, and the wiring holes 3 in the upper row are numbered 9 to 16 from right to left. This facilitates the identification of the location of each wiring hole 3. In each wiring unit group, the wiring hole 3 is connected one-to-one with each pin of the chip base 2 to form a conductive path. During the experiment, students find the wiring hole 3 according to the number and insert the wire to connect the chips, which helps to speed up the wiring process and improve the efficiency of the experiment.

[0033] In this embodiment, the wiring board 1 is provided with eight wiring unit groups, which are symmetrically arranged in the left-right direction, that is, four on the left and four on the right. The chip base 2 in the four wiring unit groups on the left has 14 pins, and the wiring holes 3 in the four wiring unit groups on the left are all located on the right side of the chip base 2. The chip base 2 in the four wiring unit groups on the right has 16 pins, and the wiring holes 3 in the four wiring unit groups on the right are all located on the left side of the chip base 2. With this design, the area between adjacent chip bases 2 in the horizontal direction is the wiring area, which is separated from the chip base 2. Therefore, after the wiring is completed, there are no wires obstructing the chip. Inserting and removing the chip and inserting and removing the wires do not affect each other. Even if the experimental results are incorrect and the chip needs to be replaced, the chip on the chip base 2 can be directly plugged and unplugged without removing the wires first, which reduces the experimental testing time and improves experimental efficiency.

[0034] When using the digital circuit experiment board in this embodiment, the following steps can be followed to complete the digital circuit experiment: (1) Wiring: According to the experimental circuit diagram, insert wires into the corresponding wiring holes 3 on the wiring board 1 according to the number. Then, insert the power supply, input signal and output signal of the entire experimental circuit into the wiring holes 3 of different numbers of the unused wiring unit group with wires, and record the number next to it and the corresponding signal name to complete the wiring operation. (2) Check the continuity of the circuit: According to the experimental circuit diagram, select the "continuity" setting of the multimeter, and touch the chip socket on the chip base 2 with the red and black probes. Judge whether the wiring is correct according to the display on the screen or the sound emitted by the multimeter. If there is an error, find the wiring hole 3, modify the wiring, and check again until all are correctly connected. Since there are no wires obstructing the chip base 2, it is convenient to touch the chip socket on the chip base 2. (3) Laboratory experiments are conducted in two steps: a. Connecting terminal block 1 to the laboratory circuit modules: According to the experimental circuit diagram and the number and signal name recorded in step (1), connect the terminal block 3 next to it to each circuit module in the laboratory with wires, and check the wiring until all are correct; b. Connect the power and observe the phenomenon: Insert the chip into the chip base 2 in the correct direction, press the power button, and observe the experimental phenomenon. If the result is not as expected, insert the chip used by the student who has completed the experiment correctly into the chip base 2 that does not produce the expected result. If the experimental result is the same as the expected result, it means that there is no problem with the circuit and the chip is faulty. In this case, simply replace the chip. If the experimental result is still different from the expected result, it means that there is a problem with the circuit. Check whether there is a problem with incorrect connection, missing connection or looseness. After adjustment, connect the power again until the phenomenon is correct. The experiment is completed. Since there are no wires obstructing the chip, it is convenient to replace the chip and is not affected by the wires, so the experimental efficiency is high.

[0035] During the experiment, if students are allowed to take the terminal block 1 away from the laboratory to conduct the experiment, then steps (1) and (2) can be completed outside the laboratory. Since the round hole socket terminal is used for secure wiring, students do not need to check the continuity of the wiring again after returning to the experimental classroom. They can directly complete the test according to step (3). This separates the experimental wiring from the test site, making it more flexible.

[0036] Example 2 This embodiment provides a digital circuit experiment box, including the digital circuit experiment terminal block in Embodiment 1, and the terminal block can be connected to other modules.

[0037] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A digital circuit experimental junction box, characterized in that: The device includes a terminal block, a chip base and wiring holes fixed on the terminal block, wherein the chip base and the wiring holes constitute a wiring unit group, and at least one wiring unit group is fixed on the terminal block; in each wiring unit group, the wiring holes are disposed on one side of the chip base, and the number of wiring holes is the same as the number of pins of the chip base, the wiring holes correspond one-to-one with each pin of the chip base, and the chip base is connected to form a conductive path.

2. The digital circuit experimental terminal block according to claim 1, characterized in that: The junction box is a printed circuit board.

3. The digital circuit experimental terminal block according to claim 1, characterized in that: The chip base and the wiring hole are both welded and fixed to the terminal board.

4. The digital circuit experimental terminal block according to claim 1, characterized in that: The multiple wiring holes in each wiring unit group are arranged in two symmetrical rows.

5. The digital circuit experimental wiring board according to claim 1, characterized in that: In each of the wiring unit groups, each wiring hole is located on the left, right, top, or bottom side of the chip base.

6. The digital circuit experimental terminal block according to claim 1, characterized in that: The chip base uses an IC locking socket.

7. The digital circuit experimental terminal block according to claim 1, characterized in that: The wiring hole adopts a round hole plug terminal.

8. The digital circuit experimental terminal block according to claim 1, characterized in that: The chip base has 14 or 16 pins.

9. The digital circuit experimental terminal block according to claim 1, characterized in that: Each of the aforementioned wiring holes has a numerical designation on its outer periphery.

10. A digital circuit experiment box, characterized in that: The digital circuit experimental terminal block includes any one of claims 1-9.

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