Vehicle power supply system teaching device for line connection

Abstract

The utility model provides a vehicle power supply system teaching device for line connection. The vehicle power supply system teaching device comprises a generator; a battery pack; the operation panel comprises a display area and a wiring area, and at least one electric power meter is arranged in the display area; a plurality of circuit devices, device binding posts matched with the circuit devices and storage battery binding posts connected with the storage battery pack are arranged in the wiring area; and the electric connecting wire is used for being connected with the device binding post and / or the storage battery binding post and / or the generator to form a power supply circuit. According to the vehicle power supply system teaching device for line connection provided by the invention, the devices included in the power supply system of the whole vehicle are extracted and can be visually displayed to students. And the understanding of the working principle of the vehicle power supply system is enhanced, the ability of students to analyze problems and solve real vehicle faults is improved, the learning interest of the students is stimulated, a better teaching effect is achieved, and the practical teaching level is improved.

Description

Technical Field

[0001] The present application relates to the technical field of teaching equipment, and in particular to a vehicle power system teaching device for line connection. Background Art

[0002] The vehicle power system consists of components such as batteries, generators, ignition switches, and ignition switch relays. The function of the power system is to convert the mechanical energy of the engine into electrical energy, which is supplied to the vehicle's electrical equipment and charges the battery. The main function of the battery is to provide electrical energy to the starter and ignition system (gasoline engine) when starting the engine. The generator consists of components such as a stator and a rotor. The function of the generator is to convert the mechanical energy of the engine into electrical energy. The battery consists of plates, separators, electrolytes, etc. The function of the battery is to achieve the mutual conversion of electrical energy and chemical energy.

[0003] The normal operation of the power system is a prerequisite for the normal operation of the vehicle. Personnel engaged in vehicle maintenance must have a solid knowledge of the structure of the power system and the working principle of the power circuit. However, the whole vehicle circuit is too abstract and difficult for students to understand, which is not conducive to the disassembly of the power circuit and the demonstration of its functions. Therefore, it is particularly important to design a vehicle power system teaching device for power circuit connection for practical education in vehicle engineering. Utility Model Content

[0004] In view of this, the purpose of the present application is to provide a vehicle power system teaching device for line connection.

[0005] Based on the above-mentioned purpose, the present application provides a vehicle power system teaching device for line connection, including: a generator; a battery pack; an operating panel, the operating panel including a display area and a wiring area, at least one power meter is arranged in the display area; a plurality of circuit components, component terminals matching the circuit components, and battery terminals connected to the battery pack are arranged in the wiring area; an electrical connecting line is used to connect to the component terminals and / or the battery terminals and / or the generator to form a power circuit.

[0006] Optionally, the multiple circuit components include a fusible link, a vehicle start switch, a fuse, a relay and a charging indicator light.

[0007] Optionally, the device terminals include a switch positive terminal, an accessory terminal, an ignition terminal and a starter terminal that match the vehicle start switch.

[0008] Optionally, the device terminals also include a first relay terminal connected to the first port of the relay, a second relay terminal connected to the second port of the relay, a third relay terminal connected to the third port of the relay, and a fourth relay terminal connected to the fourth port of the relay.

[0009] Optionally, the battery terminal is connected to the positive electrode of the battery pack; and a grounding terminal connected to the negative electrode of the battery pack is also provided in the wiring area.

[0010] Optionally, the power meter includes a generator voltmeter connected to the generator for displaying the generator voltage, and a generator ammeter connected to the generator for displaying the generator current.

[0011] Optionally, the line-connected vehicle power system teaching device also includes a Hall sensor close to the rotor of the generator, and the Hall sensor is configured to collect the rotor speed of the generator; a generator tachometer connected to the Hall sensor for displaying the rotor speed of the generator is also provided in the display area.

[0012] Optionally, the vehicle power system teaching device for line connection includes a cabinet, and the operating panel is connected to the cabinet; a mounting platform is provided on the top of the cabinet, and the generator is arranged on the mounting platform.

[0013] Optionally, an inner cavity is provided in the cabinet, and the battery pack is installed in the inner cavity.

[0014] Optionally, movable casters are installed on the bottom of the cabinet.

[0015] From the above description, it can be seen that the vehicle power system teaching device for line connection provided by the present application extracts the components included in the power system of the whole vehicle and can show them to the trainees in a relatively intuitive manner. Since a device terminal is set for each circuit component and a battery terminal is set for the battery pack, it is convenient for the trainees to independently connect the power circuit through the electrical connection line according to the vehicle power circuit schematic diagram. It is easy to operate and understand, giving full play to the trainees' hands-on ability, strengthening their understanding of the working principle of the vehicle power system, and helping the trainees to improve their ability to analyze problems and solve real vehicle fault problems, stimulate their interest in learning, achieve better teaching results, and help improve the level of practical teaching. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present application or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A schematic diagram of a vehicle power system teaching device for line connection according to an embodiment of the present application;

[0018] Figure 2 A schematic diagram of an operation panel of a vehicle power system teaching device for line connection according to an embodiment of the present application;

[0019] Figure 3 for Figure 2 An enlarged view of part A in FIG.

[0020] Figure 4 This is a schematic diagram of the power circuit connection of a line-connected vehicle power system teaching device according to an embodiment of the present application.

[0021] Description of reference numerals:

[0022] 1. Generator; 2. Battery pack; 3. Operation panel;

[0023] 301. Display area;

[0024] 3011, power meter; 3011-1, generator voltmeter; 3011-2, generator ammeter; 3012, generator tachometer;

[0025] 302, wiring area;

[0026] 3021, circuit devices;

[0027] 3021-1, fusible link; 3021-1a, first fusible link; 3021-1b, second fusible link;

[0028] 3021-2, vehicle starting switch;

[0029] 3021-3, fuse device; 3021-3a, first fuse device; 3021-3b, second fuse device;

[0030] 3021-4, relay; 3021-5, charging indicator light;

[0031] 3022, device terminals;

[0032] 3022-1a, switch positive terminal; 3022-1b, accessory terminal; 3022-1c, ignition terminal; 3022-1d, starter terminal;

[0033] 3022-2a, first relay terminal; 3022-2b, second relay terminal; 3022-2c, third relay terminal; 3022-2d, fourth relay terminal;

[0034] 3022-3, fusible link terminal; 3022-4, fuse terminal; 3022-5, indicator light terminal;

[0035] 3023, battery terminal; 3024, ground terminal; 3025, power switch;

[0036] 4. Electrical connection wire; 5. Hall sensor;

[0037] 6. Cabinet; 601. Installation platform; 602. Bracket; 603. Support column;

[0038] 7. Mobile casters. DETAILED DESCRIPTION

[0039] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0040] It should be noted that the relative arrangement of the components, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.

[0041] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0042] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0043] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0044] like Figure 1 and Figure 2 As shown, an embodiment of the present application provides a vehicle power system teaching device for line connection, including: a generator 1; a battery pack 2; an operating panel 3, the operating panel 3 including a display area 301 and a wiring area 302, at least one power meter 3011 is arranged in the display area 301; a plurality of circuit components 3021, component terminals 3022 matching the circuit components 3021, and battery terminals 3023 connected to the battery pack 2 are arranged in the wiring area 302; an electrical connection line 4, used to connect to the component terminals 3022 and / or the battery terminals 3023 and / or the generator 1 to form a power circuit.

[0045] Exemplarily, the power meter 3011 may include an ammeter or a voltmeter.

[0046] Exemplarily, the generator 1 is composed of a rotor, a stator, a rectifier, an end cover and a brush assembly. The function of the rotor is to generate a rotating magnetic field, and it is composed of two claw poles, a magnetic field winding and a slip ring. A magnetic yoke is installed in the cavity of the two claw poles, and a magnetic field winding is wound on the magnetic yoke. The two lead wires of the magnetic field winding are respectively welded on two slip rings insulated from the shaft. The two slip rings are insulated from each other. Two brushes are in contact with the slip rings to introduce direct current into the magnetic field winding. After the magnetic field current is passed through the magnetic field winding, a magnetic field is generated, so that one claw pole is magnetized to the N pole and the other claw pole is magnetized to the S pole, thus forming six pairs of magnetic poles. The shape of the claw pole flange is designed to be a bird's beak shape. When the generator 1 is working, an alternating magnetic field with an approximately sinusoidal change can be formed inside the stator core; the function of the stator is to generate three-phase alternating current, also known as an armature, and is composed of a stator core and a stator winding. The stator core is made of annular silicon steel sheets with inner grooves, and the three-phase stator windings are symmetrically placed in the stator core slots. The function of the rectifier is to convert the three-phase alternating current generated by the three-phase stator windings into direct current. The rectifier is generally composed of six silicon rectifier diodes and a heat sink for installing the rectifier tubes.

[0047] In this embodiment, the operating panel 3 may include a hard plate body (which may be a metal plate body or an acrylic plate body; when it is a metal plate body, insulation treatment is performed between the circuit device 3021 and the metal plate body, and between the device terminal 3022 and the metal plate body). The circuit device 3021 is arranged at a predetermined position on the back side of the hard plate body, and the device terminal 3022 is arranged on the front side of the hard plate body near the circuit device 3021. The device terminal 3022 is electrically connected to the matching circuit device 3021 (for example, the device terminal 3022 can be connected to the terminal or pin of the circuit device 3021 through a wire).

[0048] The battery terminal 3023 can be connected to the electrode of the battery pack 2 through a wire.

[0049] During the teaching process, students can connect the electrical connecting wire 4 between the device terminal 3022 and the device terminal 3022, or between the device terminal 3022 and the battery terminal 3023, or between the device terminal 3022 and the generator 1, or between the battery terminal 3023 and the generator 1 according to the power supply circuit schematic diagram to form a power supply circuit including the circuit device 3021, the battery pack 2 and the generator 1.

[0050] The vehicle power system teaching device for line connection provided in this embodiment extracts the components included in the power system of the whole vehicle and can show them to the trainees more intuitively. Since a device terminal 3022 is provided for each circuit component 3021 and a battery terminal 3023 is provided for the battery pack 2, it is convenient for the trainees to independently connect the power circuit through the electrical connection line 4 according to the vehicle power circuit schematic diagram. It is easy to operate and understand, giving full play to the trainees' hands-on ability, strengthening their understanding of the working principle of the vehicle power system, and helping the trainees to improve their ability to analyze problems and solve real vehicle fault problems, stimulate their interest in learning, achieve better teaching results, and help improve the level of practical teaching.

[0051] like Figure 2 and Figure 3 As shown, in some embodiments, the plurality of circuit devices 3021 include a fusible link 3021 - 1 , a vehicle start switch 3021 - 2 , a fuse device 3021 - 3 , a relay 3021 - 4 , and a charging indicator light 3021 - 5 .

[0052] Exemplarily, the fusible link 3021 - 1 includes a first fusible link 3021 - 1 a and a second fusible link 3021 - 1 b . The specification of the first fusible link 3021 - 1 a is 100A, and the specification of the second fusible link 3021 - 1 b is 200A.

[0053] Exemplarily, the fuse device 3021-3 may be a fuse or a fuse wire, and the fuse device 3021-3 includes a first fuse device 3021-3a and a second fuse device 3021-3b, wherein the specification of the first fuse device 3021-3a is 5A and the specification of the second fuse device 3021-3b is 15A.

[0054] The vehicle start switch 3021 - 2 has a shutdown position (OFF), a power-on position (ACC), an ignition position (NO) and a start position (ST). The vehicle start switch 3021 - 2 includes a knob, and rotating the knob can trigger one of the above four positions.

[0055] The relay 3021-4 includes a first port (or a connection terminal), a second port, a third port and a fourth port. The first port is port 85 of the relay 3021-4, the second port is port 86 of the relay 3021-4, the third port is port 87 of the relay 3021-4, and the fourth port is port 30 of the relay 3021-4.

[0056] Exemplarily, the charging indicator light 3021 - 5 may be an LED light.

[0057] In this embodiment, key components in the vehicle's power supply system are extracted and arranged on the operating panel 3. On the basis of ensuring the normal operation of the power supply system, the vehicle power supply system of the actual vehicle is optimized to form this embodiment, which is convenient for students to operate and understand.

[0058] like Figure 1 and Figure 3 As shown, in some embodiments, the device terminals 3022 include a switch positive terminal 3022-1a, an accessory terminal 3022-1b, an ignition terminal 3022-1c, and a starter terminal 3022-1d that match the vehicle start switch 3021-2.

[0059] like Figure 1 and Figure 2 As shown, in some embodiments, the device terminal 3022 also includes a first relay terminal 3022-2a connected to the first port of the relay 3021-4, a second relay terminal 3022-2b connected to the second port of the relay 3021-4, a third relay terminal 3022-2c connected to the third port of the relay 3021-4, and a fourth relay terminal 3022-2d connected to the fourth port of the relay 3021-4.

[0060] Exemplarily, the device terminal 3022 also includes a fusible link terminal 3022-3 connected to the fusible link 3021-1, and each fusible link 3021-1 is provided with two fusible link terminals 3022-3; a fuse terminal 3022-4 connected to the fuse device 3021-3, and each fuse device 3021-3 is provided with two fuse terminals 3022-4; an indicator light terminal 3022-5 connected to the charging indicator light 3021-5, and each charging indicator light 3021-5 is provided with two indicator light terminals 3022-5, and the two indicator light terminals 3022-5 are respectively connected to the positive terminal and the negative terminal of the charging indicator light 3021-5.

[0061] like Figure 1 As shown, in some embodiments, the wiring area 302 of the operating panel 3 is also provided with a power switch 3025. The power switch 3025 is connected to the electrode (e.g., the negative electrode) of the battery pack 2 through a wire on the back of the hard board body, and is used to control whether the battery pack 2 is connected to the power circuit and / or control the connection and interruption of the power circuit.

[0062] like Figure 1 and Figure 2 As shown, in some embodiments, the battery terminal 3023 is connected to the positive electrode of the battery pack 2; and a grounding terminal 3024 connected to the negative electrode of the battery pack 2 is also provided in the wiring area 302.

[0063] Exemplarily, the number of grounding terminals 3024 may be one, two, or more.

[0064] The function of the grounding terminal 3024 is the same as the grounding function in the vehicle.

[0065] For example, in a real car, the working principle of the power system is: including a battery and a generator connected in parallel. When the engine is working, the engine drives the generator to provide electrical energy to the vehicle's electrical equipment and charge the battery. The main function of the battery is to provide electrical energy to the starter and ignition system (gasoline engine) when starting the engine.

[0066] However, in this embodiment, the function of the battery pack 2 is different from the above. The battery pack 2 in this embodiment is mainly used to provide electrical energy to electrical devices in the power circuit (such as the charging indicator light 3021-5, etc.).

[0067] In this embodiment, the power supply circuit formed by connecting the electrical connection line 4 can be as follows Figure 4 shown.

[0068] The battery terminal 3023 is connected to one of the fusible link terminals 3022-3 of the fusible link 3021-1, the other fusible link terminal 3022-3 is connected to the positive terminal 3022-1a of the switch, the positive terminal 3022-1a of the switch is connected to one of the fuse terminals 3022-4 of the fuse device 3021-3, the other fuse terminal 3022-4 is connected to the fourth relay terminal 3022-2d, and the second relay terminal 3022-2b is connected to the grounding terminal 3024 to achieve connection with the negative electrode of the battery pack, forming a first closed loop in the power supply circuit.

[0069] The second closed loop in the power supply circuit is: the battery terminal 3023 is connected to one of the fusible link terminals 3022-3 of the fusible link 3021-1, the other fusible link terminal 3022-3 is connected to the switch positive terminal 3022-1a, the ignition terminal 3022-1c is connected to the first relay terminal 3022-2a, the third relay terminal 3022-2c is connected to one of the indicator light terminals 3022-5, the other indicator light terminal 3022-5 is connected to the generator 1, and the generator 1 is then connected to the grounding terminal 3024 to achieve connection with the negative electrode of the battery pack.

[0070] During the start-up phase of the generator 1, the battery pack 2 provides the generator 1 with a magnetic field current to drive the rotor of the generator 1 to rotate. When the contacts of the relay 3021-4 are closed, the current provided by the battery pack 2 flows through the charging indicator light 3021-5 to power the magnetic field coil of the generator 1.

[0071] As the speed of the generator 1 rotor increases, the voltage of the generator 1 increases accordingly. When the voltage of the generator 1 increases to the charging voltage Uc of the battery pack 2, the potential difference across the charging indicator light 3021-5 decreases to zero, and the charging indicator light 3021-5 turns off, indicating that the generator 1 has been generating electricity normally, and the magnetic field current of the generator 1 is supplied by itself. When the speed of the generator 1 rotor decreases, the cathode potential of the charging indicator light 3021-5 decreases, the potential difference across the charging indicator light 3021-5 increases, and the charging indicator light 3021-5 turns on again, indicating that the battery pack 2 is discharging.

[0072] like Figure 2 As shown, in some embodiments, the power meter 3011 includes a generator voltmeter 3011 - 1 connected to the generator 1 for displaying the generator voltage, and a generator ammeter 3011 - 2 connected to the generator 1 for displaying the generator current.

[0073] The generator ammeter 3011-2 and the generator voltmeter 3011-1 can intuitively display the changes in the generated current and voltage of the generator 1 at the moment of operation, so that the students can understand the composition and working status of the power supply system, strengthen their understanding of the working principle of the power supply system, stimulate the students' learning interest, and achieve the best teaching effect.

[0074] like Figure 1 and Figure 2 As shown, in some embodiments, the vehicle power system teaching device for line connection also includes a Hall sensor 5 close to the rotor of the generator 1, and the Hall sensor 5 is configured to collect the rotor speed of the generator 1; a generator tachometer 3012 connected to the Hall sensor 5 for displaying the rotor speed of the generator 1 is also provided in the display area 301.

[0075] The rotor speed of the generator 1 can be collected by the Hall sensor 5 and displayed via the generator tachometer 3012, so that students can intuitively observe the changes in the rotor speed of the generator 1 during the power generation process, which helps students understand the working principle of the power supply circuit in this embodiment.

[0076] like Figure 1 As shown, in some embodiments, the vehicle power system teaching device for line connection includes a cabinet 6, and the operation panel 3 is connected to the cabinet 6; a mounting platform 601 is provided on the top of the cabinet 6, and the generator 1 is arranged on the mounting platform 601.

[0077] For example, the frame of the cabinet 6 can be formed by splicing aluminum alloy profiles, which reduces the overall weight of the equipment, is strong and durable, does not require welding, and is green and environmentally friendly.

[0078] Exemplarily, the mounting platform 601 can form a smooth surface on the top of the cabinet 6 .

[0079] Exemplarily, a bracket 602 is provided on the mounting platform 601 , and the bracket 602 is connected to the generator 1 and the Hall sensor 5 , respectively, and is used to fix the generator 1 and the Hall sensor 5 and maintain the relative position therebetween.

[0080] Exemplarily, one, two or more generators 1 of different specifications are arranged on the installation platform 601 .

[0081] Exemplarily, a support column 603 is further provided on the top of the cabinet 6 , and the operation panel 3 is vertically fixedly connected to the support column 603 .

[0082] Exemplarily, the front side of the operating panel 3 faces the generator 1 on the mounting platform 601 , and a shell may be provided on the back side of the operating panel 3 for protecting the circuit device 3021 , and the shell is provided with an openable and closable shell door.

[0083] like Figure 1 As shown, in some embodiments, an inner cavity is provided in the cabinet 6, and the battery pack 2 is installed in the inner cavity.

[0084] Exemplarily, the cabinet 6 is provided with a cabinet door 6 that can be opened and closed. When the cabinet 6 is opened, the inner cavity is connected to the outside, and the battery pack 2 can be taken in and out.

[0085] The battery pack 2, the generator 1 and the operating panel 3 are integrated in the cabinet 6, so that the vehicle power system teaching device for line connection of this embodiment is reasonably designed and compact in structure, thereby ensuring the integrity of the device.

[0086] In some embodiments, a hole opener can be used to prepare holes on the operation panel 3 that match the vehicle start switch 3021-2, the charging indicator light 3021-5, the power switch 3025, the device terminal 3022, the battery terminal 3023, the ground terminal 3024, the power meter 3011, and the generator tachometer 3012. The above-mentioned components and devices are respectively embedded in the corresponding holes and fixed by fasteners (such as screws).

[0087] like Figure 1 and Figure 2 As shown, in some embodiments, movable casters 7 are installed at the bottom of the cabinet 6.

[0088] Exemplarily, the movable caster 7 may be a universal wheel.

[0089] The bottom of the cabinet 6 may be provided with four movable casters 7, two of which are provided with brake structures, so as to facilitate the movement and fixation of the cabinet 6 and facilitate teaching.

[0090] The vehicle power system teaching device for line connection of this embodiment requires students to master the working principle of the power circuit and use electrical connection wires to correctly connect each terminal according to its power circuit schematic diagram in static state, so that the power circuit can operate normally. Teachers can use it to conduct teaching and principle analysis of "power system circuit cognition", fully demonstrate the main circuit components included in the vehicle power system and the connection relationship between the circuit components, so that students have a clearer understanding of the working principle of the power system, and lay a solid foundation for systematic fault analysis and detection. This function can also be used to detect students' mastery of the power system, thereby deepening students' understanding of abstract circuit diagrams. In dynamic state, the operation of the power circuit is the same as that of the real vehicle, which enables students to intuitively watch the changes in current, voltage and speed of the generator under different working conditions, and more easily obtain and analyze the operation data of the generator.

[0091] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0092] The various embodiments in the present application are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0093] The description of the present application is given for the purpose of illustration and description, and is not intended to be exhaustive or to limit the present application to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present application, and to enable those of ordinary skill in the art to understand the present application and thus design various embodiments with various modifications suitable for specific purposes.

[0094] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application (including the claims) is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0095] Although the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0096] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

Claims

1. A vehicle power system teaching device for line connection, characterized in that: include: dynamo; Battery pack; An operation panel, the operation panel comprising a display area and a wiring area, wherein at least one power meter is arranged in the display area; a plurality of circuit components, component terminals matching the circuit components, and battery terminals connected to the battery pack are arranged in the wiring area; An electrical connection line is used to connect with the device terminal and / or the battery terminal and / or the generator to form a power circuit.

2. The vehicle power system teaching device for line connection according to claim 1, characterized in that: The plurality of circuit components include a fusible link, a vehicle start switch, a fuse device, a relay and a charging indicator light.

3. The vehicle power system teaching device for line connection according to claim 2, characterized in that: The device terminals include a switch positive terminal, an accessory terminal, an ignition terminal and a starter terminal that match the vehicle start switch.

4. The vehicle power system teaching device for line connection according to claim 2, characterized in that: The device terminals also include a first relay terminal connected to the first port of the relay, a second relay terminal connected to the second port of the relay, a third relay terminal connected to the third port of the relay, and a fourth relay terminal connected to the fourth port of the relay.

5. The vehicle power system teaching device for line connection according to claim 1, characterized in that: The battery terminal is connected to the positive electrode of the battery pack; a grounding terminal connected to the negative electrode of the battery pack is also provided in the wiring area.

6. The vehicle power system teaching device for line connection according to claim 1, characterized in that: The electric power meter includes a generator voltmeter connected to the generator for displaying the generator voltage, and a generator ammeter connected to the generator for displaying the generator current.

7. The vehicle power system teaching device for line connection according to claim 1, characterized in that: The vehicle power system teaching device for line connection also includes a Hall sensor close to the rotor of the generator, and the Hall sensor is configured to collect the rotor speed of the generator; A generator tachometer connected to the Hall sensor and used for displaying the rotor speed of the generator is also provided in the display area.

8. The vehicle power system teaching device for line connection according to claim 1, characterized in that: The vehicle power system teaching device for line connection includes a cabinet, and the operation panel is connected to the cabinet; a mounting platform is arranged on the top of the cabinet, and the generator is arranged on the mounting platform.

9. The vehicle power system teaching device for line connection according to claim 8, characterized in that: The cabinet is provided with an inner cavity, and the battery pack is installed in the inner cavity.

10. The vehicle power system teaching device for line connection according to claim 8, characterized in that: The bottom of the cabinet is provided with movable casters.

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