Teaching demonstration device for high-voltage interlocking system of new energy automobile

Abstract

The utility model discloses a teaching demonstration device for a high-voltage interlocking system of a new energy automobile. The teaching demonstration device is composed of an arduino UNO chip, a normally open relay, a direct current motor, a button switch, a traffic light module, a plurality of resistors, a plurality of wires and a bread board for assembling the above circuit elements. The beneficial effects of the utility model are that the new energy automobile high-voltage interlocking teaching demonstration device employs the arduino chip to simulate the operation of a new energy automobile high-voltage system, is simple and safe, is light, can display the operation principle of a new energy automobile electrical system to students more conveniently, is very high in practicality and cost performance in teaching, and achieves the teaching demonstration of the new energy automobile high-voltage interlocking based on the thought. In the future, the method can be used for simulating high-voltage systems of more new energy automobiles to make teaching aids, so that new energy automobile teaching is qualitatively changed.

Description

Technical Field

[0001] The utility model relates to the field of teaching demonstration equipment, in particular to a teaching demonstration device for a high-voltage interlocking system of a new energy vehicle. Background Art

[0002] In the teaching process of new energy vehicle professional courses, students need to master some knowledge about the principles of high-voltage electrical appliances of new energy vehicles. This knowledge is often difficult to express intuitively using classroom teaching methods, and the relevant supporting teaching aids are also difficult to clearly reflect a specific function. In addition, the maintenance of new energy vehicles belongs to the category of special operations, and there are certain safety risks in the maintenance process.

[0003] High-voltage interlocking is an important part of the electrical protection system of new energy vehicles. Both the international standard ISO 6469-3-2011 "Electric road vehicles·Safety specifications·Part 3: Personal protection against electric shock" and the national standard GB / T 37133-2018: "Technical requirements for high-voltage and high-current wiring harnesses and connectors for electric vehicles" (4-GB / T 37133-2018) stipulate that the high-voltage connection system needs to have a high-voltage interlocking function. The principle of the high-voltage interlocking function is to use low-voltage signals to determine the integrity of the high-voltage system, determine whether there is an abnormality in the high-voltage system line, and use this as a basis to control the on and off of the high-voltage system.

[0004] Because the high-voltage interlock system plays an important role in the high-voltage safety protection system of new energy vehicles, the high-voltage interlock system must be used during the inspection and maintenance of the high-voltage system of new energy vehicles. For safety reasons, personnel who lack understanding of the high-voltage interlock system cannot inspect and repair the high voltage of new energy vehicles. Therefore, how to enable students to better understand the principles and operating mechanisms of the high-voltage interlock system is a problem encountered by teaching staff during the teaching process. Utility Model Content

[0005] In order to solve the above existing problems, the utility model provides a teaching demonstration device for a high-voltage interlocking system of a new energy vehicle. The teaching demonstration device simulating the high-voltage interlocking system of a new energy vehicle is manufactured by using the Arduino open source electronic platform and supporting electronic devices. The device can not only clearly express the principle of the high-voltage interlocking system of a new energy vehicle, but also has great development space. The utility model is implemented by the following technical solutions.

[0006] A teaching demonstration device for a high-voltage interlocking system of a new energy vehicle, comprising an Arduino UNO chip, a normally open relay, a DC motor, a push button switch, a traffic light module, a plurality of resistors, a plurality of wires, and a breadboard for assembling the Arduino UNO chip, the normally open relay, the DC motor, the push button switch, the traffic light module, a plurality of resistors, and a plurality of wires;

[0007] The Arduino UNO chip is used for processing information and controlling circuits, and is electrically connected to the normally open relay, the push button switch and the traffic light module respectively. The normally open relay is electrically connected to the DC motor. The push button switch is used for controlling the switch of the normally open relay. The traffic light module is provided with one red, yellow and green signal light each.

[0008] Furthermore, the DC motor is electrically connected to a motor battery.

[0009] The beneficial effects of the utility model are as follows: the new energy vehicle high-voltage interlock teaching demonstration device adopts an Arduino chip to simulate the operation of the new energy vehicle high-voltage system. It is simple, safe, and lightweight. It can more conveniently demonstrate the operating principle of the new energy vehicle electrical system to students. It has high practicality and cost-effectiveness in teaching. Based on this idea, this method can be used to simulate more high-voltage systems of new energy vehicles in the future and made into teaching aids, which will bring about a qualitative change in the teaching of new energy vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a structural diagram of a teaching demonstration device for a high-voltage interlocking system of a new energy vehicle according to the utility model. DETAILED DESCRIPTION

[0011] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Generally, the components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0012] In the description of the embodiments of the present utility model, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0013] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0014] In the description of the embodiments of the present invention, "multiple" means at least 2.

[0015] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0016] Example:

[0017] Circuit Elements:

[0018] Arduino UNO chip 10, breadboard 20, normally open relay 30, DC motor 40, push button switch 50, traffic light module 60, some resistors, some wires;

[0019] Components of the circuit:

[0020] The external output includes a traffic light module 60 with a red, yellow, and green signal light and a DC motor 40 controlled by a normally open relay 30. The DC motor 40 is electrically connected to a motor battery 41.

[0021] The control part is provided with a loop representing a high voltage interlock circuit, which can be plugged in and out at any time, and a button switch 50 is used to control the switch of a normally open relay 30;

[0022] The Arduino UNO chip 10 is responsible for processing information and controlling the circuit.

[0023] Teaching aids operation logic:

[0024] When the circuit operates normally, the green light is always on. When the switch is pressed, the yellow light turns on. At the same time, the chip controls the relay to start the circuit for the motor. When the high-voltage interlock circuit is disconnected, the red light turns on, the rest of the circuit will not run, and there is no response when the switch is pressed.

[0025] After actual testing, it was found that the system can operate according to the design requirements and meet the teaching aids requirements.

[0026] Summarize:

[0027] The new energy vehicle high voltage interlocking system teaching demonstration device uses Arduino chip to simulate the operation of the new energy vehicle high voltage system. It is simple, safe, and lightweight. It can more conveniently show the operating principle of the new energy vehicle electrical system to students. It has high practicality and cost-effectiveness in teaching. Based on this idea, in the future we can also use this method to simulate more high voltage systems of new energy vehicles and make them into teaching aids, so as to bring about a qualitative change in the teaching of new energy vehicles.

[0028] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A teaching demonstration device for a high-voltage interlocking system of a new energy vehicle, characterized in that: An Arduino UNO chip, a normally open relay, a DC motor, a push button switch, a traffic light module, a number of resistors, a number of wires, and a breadboard for assembling the Arduino UNO chip, the normally open relay, the DC motor, the push button switch, the traffic light module, a number of resistors, and a number of wires; The Arduino UNO chip is used for processing information and controlling circuits, and is electrically connected to the normally open relay, the push button switch and the traffic light module respectively. The normally open relay is electrically connected to the DC motor. The push button switch is used for controlling the switch of the normally open relay. The traffic light module is provided with one red, yellow and green signal light each.

2. A teaching demonstration device for a high-voltage interlocking system of a new energy vehicle according to claim 1, characterized in that: The DC motor is electrically connected to a motor battery.

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