Teaching and practical training device for fault diagnosis of vehicle windscreen wiper circuit
By designing a teaching and training device for diagnosing vehicle wiper circuit faults, integrating wiper circuit structure and fault simulation, the problem of learners' difficulty in understanding circuit construction and fault diagnosis is solved, achieving intuitive teaching results and an efficient learning experience.
Patent Information
- Application Number
- CN202423137505.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-18
AI Technical Summary
In practical training on vehicle wiper circuits, the circuits of each component cannot be fully and intuitively presented to learners, making it difficult for them to understand the structure and principles of wiper circuits, as well as methods for fault diagnosis and troubleshooting.
A teaching and training device for vehicle wiper circuit fault diagnosis was designed, including a bench, a wiper circuit module, a fault simulation module, and a drive module. By setting the wiper circuit module on the upper surface of the operating table and the fault simulation module on the lower surface, and connecting them in parallel, different faults can be simulated for learners to analyze.
This improved learners' understanding and knowledge of windshield wiper circuits, enhanced teaching quality and efficiency, and enabled learners to intuitively understand circuit structure and fault diagnosis methods.
Smart Images
Figure CN223552186U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle training device technology, and in particular to a teaching and training device for diagnosing vehicle windshield wiper circuit faults. Background Technology
[0002] In the process of practical training on vehicle wiper circuits, the circuits of each component cannot be fully and intuitively presented to the learners, making it difficult for them to understand the structure and principles of vehicle wiper circuits, as well as methods for fault diagnosis and troubleshooting. Utility Model Content
[0003] In view of this, the purpose of this utility model is to propose a teaching and training device for vehicle wiper circuit fault diagnosis, so as to solve the problem of difficulty in learning and understanding vehicle wiper circuits.
[0004] To achieve the above objectives, this utility model provides a teaching and training device for diagnosing vehicle windshield wiper circuit faults, comprising:
[0005] The frame includes an upper and lower operating table and a mounting bracket;
[0006] The wiper circuit module includes multiple electrically connected electrical components and is located on the upper surface of the control panel;
[0007] The fault simulation module includes multiple fault components, which are connected in parallel with the electrical components of the wiper circuit module and are located on the lower surface of the control panel.
[0008] The drive module is located on the mounting bracket and is electrically connected to the wiper circuit module;
[0009] The wiper circuit module malfunctions when the faulty component in the fault simulation module is connected.
[0010] Furthermore, the fault component includes a five-pin relay and a switch button connected together. The five-pin relay has two output terminals. One output terminal is connected to the input terminal of the electrical component of the wiper circuit module, and the other output terminal is connected to the output terminal of the wiper circuit module through the switch button.
[0011] Furthermore, the wiper circuit module includes an intermittent wiper controller, a wiper motor, a wiper switch, a high-speed wiper relay, and a low-speed wiper relay. The fault simulation module includes a first fault component, a second fault component, a third fault component, a fourth fault component, a fifth fault component, a sixth fault component, a seventh fault component, and an eighth fault component. The first fault component is connected in parallel with the low-speed wiper relay, the second fault component is connected in parallel with the high-speed wiper relay, the third fault component is connected in parallel with the wiper motor, the fourth, fifth, and sixth fault components are all connected in parallel with the wiper switch, the seventh fault component is connected in parallel with the intermittent wiper controller, and the eighth fault component is connected in parallel with the wiper circuit module.
[0012] Furthermore, the wiper switch includes a first terminal, a second terminal, and a third terminal. The first terminal is connected to the high-speed wiper relay, the second terminal is connected to the low-speed wiper relay and the intermittent wiper controller, the third terminal is connected to the intermittent wiper controller, the fourth fault component is connected in parallel with the first terminal, the fifth fault component is connected in parallel with the second terminal, and the sixth fault component is connected in parallel with the third terminal.
[0013] Furthermore, the drive module includes a battery, a power switch, and a fuse. The positive terminal of the battery, the power switch, and the fuse are connected in series to the input terminal of the wiper circuit module, and the output terminal of the wiper circuit module is connected to the negative terminal of the battery.
[0014] Furthermore, the operating platform is provided with multiple fixed structures, and each fixed structure is equipped with an electrical component of the wiper circuit module.
[0015] Furthermore, a teaching board is provided on the operating table, which is located near the edge of the operating table and perpendicular to the operating table.
[0016] Furthermore, the fuse is a resettable fuse.
[0017] Furthermore, the bottom of the platform is equipped with casters.
[0018] Furthermore, the switch button is located on the upper surface of the control panel.
[0019] As described above, this utility model provides a teaching and training device for vehicle wiper circuit fault diagnosis. By setting up an operating table and mounting bracket on a frame, with the wiper circuit module located on the upper surface of the operating table and the fault simulation module on the lower surface, and the drive module that drives the wiper circuit module located on the mounting bracket, learners can intuitively understand the implementation principle of the wiper circuit. Simultaneously, the fault simulation module allows the wiper circuit module to experience different faults during operation, providing learners with fault analysis conditions for the wiper circuit module, enabling them to analyze the causes of wiper malfunctions and deepen their understanding and knowledge of wiper circuits. This application integrates the structure, connection, and faults of wiper circuits, which can greatly improve learners' learning efficiency and teaching effectiveness in wiper circuits. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.
[0021] Figure 1 This is a three-dimensional structural diagram of the vehicle windshield wiper circuit fault diagnosis training device according to an embodiment of the present invention;
[0022] Figure 2 This is a schematic diagram of the circuit structure of the vehicle windshield wiper circuit fault diagnosis training device according to an embodiment of this utility model.
[0023] In the diagram: 10. Stand; 11. Control panel; 111. Fixed structure; 12. Mounting bracket; 13. Teaching board; 20. Wiper circuit module; 21. Electrical components; 30. Fault simulation module; 31. Fault component; 311. Five-pin relay; 312. Switch button; 40. Drive module; 41. Battery; 42. Power switch; 43. Fuse; 50. Caster wheel. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.
[0025] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the term encompasses the elements or objects listed following the term and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0026] As described in the background section, during practical training on vehicle wiper circuits, the circuits of each component cannot be fully and intuitively presented to learners, making it difficult for them to understand the structure and principles of vehicle wiper circuits, as well as methods for fault diagnosis and troubleshooting.
[0027] Based on this, this application proposes a teaching and training device for vehicle wiper circuit fault diagnosis, so that learners can understand the structure and principle of vehicle wiper circuit, fault diagnosis and troubleshooting methods, and improve teaching quality and effectiveness.
[0028] The present application will be described in detail below through one or more specific embodiments.
[0029] In some embodiments, such as Figure 1 and Figure 2 As shown, a teaching and training device for diagnosing vehicle windshield wiper circuit faults includes:
[0030] The frame 10 includes an operating table 11 and a mounting frame 12 arranged vertically.
[0031] The wiper circuit module 20 includes multiple electrically connected electrical components 21 and is located on the upper surface of the control panel 11;
[0032] The fault simulation module 30 includes multiple fault components 31, which are connected in parallel with the electrical components 21 of the wiper circuit module 20 and are located on the lower surface of the control panel 11.
[0033] The drive module 40 is located on the mounting bracket 12 and is electrically connected to the wiper circuit module 20;
[0034] When the fault component 31 in the fault simulation module 30 is connected, the wiper circuit module 20 malfunctions.
[0035] Specifically, the stand 10 is used to support the wiper circuit module 20, the fault simulation module 30, and the drive module 40. The stand 10 includes an operating table 11 and a mounting bracket 12. The operating table 11 is located directly above the mounting bracket 12. The upper surface of the operating table 11 supports the wiper circuit module 20 so that learners can intuitively understand the electrical components 21 and connection relationships of the wiper circuit module 20. It should be noted that the wiper circuit module 20 completely simulates the structure and connection relationships of a real vehicle wiper circuit.
[0036] The fault simulation module 30 is located on the lower surface of the control panel 11, which not only allows for a concealed setup but also shortens the connection distance between the fault simulation module 30 and the wiper circuit module 20, thereby simplifying the setup of the fault simulation module 30 and improving the practicality of the teaching and training device.
[0037] The fault simulation module 30 has a fault component 31 connected in parallel with the electrical component 21 of the wiper circuit module 20, so that the electrical component 21 is short-circuited. During the operation of the wiper circuit module 20, the electrical component 21 fails, and the wiper circuit module 20 cannot operate normally. This allows learners to diagnose and troubleshoot faults based on the faulty wiper circuit module 20, deepen their understanding of the wiper circuit module 20, and improve the quality of teaching.
[0038] In this embodiment, by setting an operating platform 11 and a mounting bracket 12 on the test bench 10, with the wiper circuit module 20 located on the upper surface of the operating platform 11, the fault simulation module 30 located on the lower surface of the operating platform 11, and the drive module 40 for driving the wiper circuit module 20 located on the mounting bracket 12, learners can intuitively understand the implementation principle of the wiper circuit. Simultaneously, the fault simulation module 30 allows the wiper circuit module 20 to experience different faults during operation, providing learners with fault analysis conditions for the wiper circuit module 20, enabling them to analyze the causes of wiper malfunctions and deepen their understanding and knowledge of wiper circuits. This application integrates the structure, connection, and faults of the wiper circuit, which can greatly improve learners' learning efficiency and teaching effectiveness regarding wiper circuits.
[0039] In some embodiments, the fault component 31 includes a five-pin relay 311 and a switch button 312 connected together. The five-pin relay 311 includes two output terminals. One output terminal is connected to the input terminal of the electrical component 21 of the wiper circuit module 20, and the other output terminal is connected to the output terminal of the wiper circuit module 20 through the switch button 312.
[0040] Specifically, the fault simulation module 30 functions to short-circuit the electrical components 21 of the wiper circuit module 20, causing the wiper circuit module 20 to exhibit a corresponding fault due to the inability of these components 21 to operate. Each fault component 31 corresponds to a specific fault. The five-pin relay 311 is located at the input terminal of the electrical component 21. When the switch button 312 of the fault component 31 is connected, the electrical component 21 is short-circuited, resulting in no current input. Consequently, the wiper circuit module 20 exhibits a corresponding fault because the electrical component 21 stops operating. This allows learners to identify the cause of the fault based on the fault, thereby deepening their understanding of the wiper circuit module 20.
[0041] It should be noted that the five-pin relay 311 has two input terminals, both connected in series with the input terminal of the electrical component 21 of the wiper circuit module 20. The five-pin relay 311 also has two output terminals: one connected to the input terminal of the electrical component 21 of the wiper circuit module 20, and the other connected to the switch button 312 of the fault component 31. That is, the five-pin relay 311 has two pairs of connected input and output terminals, one pair for connecting to the electrical component 21 of the wiper circuit module 20, and the other pair for connecting to the switch button 312 of the fault component 31. This allows the five-pin relay 311 to simultaneously connect to both the fault component 31 and the wiper circuit module 20, thus protecting both the fault component 31 and the wiper circuit module 20.
[0042] In some embodiments, the wiper circuit module 20 includes an intermittent wiper controller, a wiper motor, a wiper switch, a high-speed wiper relay, and a low-speed wiper relay. The fault simulation module 30 includes a first fault component, a second fault component, a third fault component, a fourth fault component, a fifth fault component, a sixth fault component, a seventh fault component, and an eighth fault component. The first fault component is connected in parallel with the low-speed wiper relay, the second fault component is connected in parallel with the high-speed wiper relay, the third fault component is connected in parallel with the wiper motor, the fourth, fifth, and sixth fault components are all connected in parallel with the wiper switch, the seventh fault component is connected in parallel with the intermittent wiper controller, and the eighth fault component is connected in parallel with the wiper circuit module 20.
[0043] Specifically, the fault simulation component includes eight fault components 31. Each fault component 31 is connected in parallel with a port of an electrical component 21 in the wiper circuit module 20 to simulate a fault type. The first fault component is connected in parallel with the wiper low-speed relay, that is, one output terminal of the five-pin relay 311 of the first fault component is connected to the input terminal of the wiper low-speed relay, and the other output terminal of the five-pin relay 311 of the first fault component is connected to the switch button 312 of the first fault component. When the first fault component is turned on, the wiper low-speed relay has no current input, the wiper circuit module 20 exhibits a low-speed mode that does not work, and the wiper low-speed relay is faulty. The second fault component is connected in parallel with the wiper high-speed relay, that is, the five-pin relay 311 of the ... One output terminal of the first fault component 11 is connected to the input terminal of the high-speed wiper relay. The other output terminal of the five-pin relay 311 of the second fault component is connected to the switch button 312 of the second fault component. When the second fault component is on, the high-speed wiper relay has no current input, and the wiper circuit module 20 exhibits a non-operational high-speed mode, indicating a fault in the high-speed wiper relay. The third fault component is connected in parallel with the wiper motor; that is, one output terminal of the five-pin relay 311 of the third fault component is connected to the input terminal of the wiper motor, and the other output terminal of the five-pin relay 311 of the third fault component... The terminal is connected to the switch button 312 of the third fault component. When the third fault component is turned on, the wiper motor has no current input, the wiper motor does not work, the wiper circuit module 20 does not operate, and the wiper motor is faulty. The fourth, fifth, and sixth fault components are all connected in parallel with the wiper switch. That is, one output terminal of the five-pin relay 311 of the fourth, fifth, and sixth fault components is respectively connected to different input ports of the wiper switch, so that when the fourth, fifth, and sixth fault components are turned on, the wiper motor is faulty. When the sixth fault component is turned on, the wiper switch will not work at different input ports. The seventh fault component is connected in parallel with the intermittent wiper controller. That is, one output terminal of the five-pin relay 311 of the seventh fault component is connected to the input terminal of the intermittent wiper controller, and the other output terminal of the five-pin relay 311 of the seventh fault component is connected to the switch button 312 of the seventh fault component. When the seventh fault component is turned on, the intermittent wiper controller has no current input, the intermittent wiper controller does not work, the wiper circuit module 20 does not run, and the intermittent wiper controller is faulty.The eighth fault component is connected in parallel with the wiper circuit module 20. Specifically, one output terminal of the five-pin relay 311 of the eighth fault component is connected to the input terminal of the wiper circuit module 20, and the other output terminal of the five-pin relay 311 is connected to the switch button 312 of the eighth fault component. The input terminal of the wiper circuit module 20 is connected to the drive module 40. When the eighth fault component is turned on, the wiper circuit module 20 is short-circuited, resulting in the wiper circuit module 20 not operating and thus failing.
[0044] In this embodiment, the connection relationship of the electrical components 21 of the fault simulation module 30 and the wiper circuit module 20 is specifically described, so that the fault simulation module 30 can simulate different types of faults. When the switch button 312 of one of the fault components is turned on, the electrical component 21 connected to the fault component will exhibit a fault, thus realizing the effect of setting faults in the teaching and training device. This allows learners to find the cause of the fault in the wiper circuit module 20, deepen their understanding of the wiper circuit module 20, and improve the quality and efficiency of learning.
[0045] In some embodiments, the wiper switch includes a first terminal, a second terminal, and a third terminal. The first terminal is connected to the high-speed wiper relay, the second terminal is connected to the low-speed wiper relay and the intermittent wiper controller, the third terminal is connected to the intermittent wiper controller, the fourth fault component is connected in parallel with the first terminal, the fifth fault component is connected in parallel with the second terminal, and the sixth fault component is connected in parallel with the third terminal.
[0046] Specifically, the first terminal of the wiper switch is connected to the high-speed wiper relay to control the high-speed operation of the wiper circuit module 20. The second terminal of the wiper switch is connected to the low-speed wiper relay and the intermittent wiper controller to control the low-speed and intermittent wiper operation of the wiper circuit module 20. The third terminal of the wiper switch is connected to the intermittent wiper controller to control the intermittent wiper operation of the wiper circuit module 20. The fourth, fifth, and sixth fault components are connected to the first, second, and third terminals respectively to set faults at the first, second, and third terminals respectively.
[0047] For example, the wiper switch is provided with multiple switches, the first end is a high-speed wiper switch, the second end is a wiper speed control switch, and the third end is a wiper start switch.
[0048] In this embodiment, the specific connection relationship between the fourth fault component, the fifth fault component, and the sixth fault component and the wiper switch is described to clarify the fault generated by the wiper circuit module 20 when the fourth fault component, the fifth fault component, and the sixth fault component are turned on. This clarifies the specific faults that the fault simulation module 30 can simulate and their correspondence with the fault components, thereby improving the diversity and reliability of the fault settings of the teaching and training device.
[0049] For example, as shown in Table 1, the switch button 312 of each fault component is labeled, such as button 1 in the first fault component, button 2 in the second fault component, and so on. When the instructor uses the teaching and training device to teach, he needs to set up the corresponding fault, such as a low-speed wiper relay fault. He can press button 1, and the wiper circuit module 20 in the teaching and training device will show that the low-speed wiper relay is not running. The learner can then locate the fault and find the cause of the fault to deepen his understanding of the wiper circuit module 20.
[0050] Table 1. Fault Types and Corresponding Switch Buttons
[0051] Switch button serial number Fault type 1 Windshield wiper low speed relay malfunction 2 Wiper high-speed relay malfunction 3 Wiper motor malfunction 4 Fault at the first terminal of the wiper switch 5 Fault at the second terminal of the wiper switch 6 Wiper switch third terminal malfunction 7 Intermittent wiper controller malfunction 8 Wiper circuit module malfunction
[0052] In some embodiments, the drive module 40 includes a battery 41, a power switch 42, and a fuse 43. The positive terminal of the battery 41, the power switch 42, and the fuse 43 are connected in series to the input terminal of the wiper circuit module 20, and the output terminal of the wiper circuit module 20 is connected to the negative terminal of the battery 41.
[0053] Specifically, the drive module 40 is the power module of the wiper circuit module 20, the battery 41 is the power source, the power switch 42 is used to control the conduction or cutoff of the battery 41 and the wiper circuit module 20, and the fuse 43 is a protective structure to avoid damage to the electrical components 21 or circuits in the wiper circuit module 20, thereby improving the practicality and service life of the teaching and training device.
[0054] In some embodiments, the control panel 11 is provided with a plurality of fixed structures 111, and each fixed structure 111 is equipped with an electrical component 21 of the wiper circuit module 20.
[0055] Specifically, the fixing structure 111 is used to fix the electrical components 21 of the wiper circuit module 20. The fixing structure 111 is a frame structure adapted to the electrical components 21. The electrical components 21 are located in the inner frame of the fixing structure 111 and are fixedly connected to the fixing structure 111. The fixing structure 111 is fixedly connected to the upper surface of the operating table 11, so that the electrical components 21 are fixedly set relative to the upper surface of the operating table 11, thereby ensuring the position of the electrical components 21 on the operating table 11. When the electrical components 21 malfunction and need to be replaced, it is easy to disassemble and replace, which is beneficial to the practicality of the teaching and training device.
[0056] In some embodiments, the operating table 11 is provided with a teaching board 13, which is disposed near the edge of the operating table 11 and perpendicular to the operating table 11.
[0057] Specifically, the teaching board 13 is vertically positioned to the operating table 11, allowing learners to easily view the teaching board 13 while inspecting the wiper circuit module 20 on the operating table 11. Positioning the teaching board 13 close to the edge of the operating table 11 prevents it from interfering with the operation of the wiper circuit module 20 on the upper surface of the operating table 11, thus enhancing the practicality of the teaching and training device. The teaching board 13 contains a circuit diagram of the vehicle wiper circuit, allowing learners to use it as a reference when using the teaching and training device, thereby deepening their understanding of the wiper circuit and further improving the practicality of the teaching and training device.
[0058] In some embodiments, the fuse 43 is a resettable fuse 43.
[0059] Specifically, setting the fuse 43 in the drive module 40 as a self-resetting fuse 43 can avoid frequent replacement of the fuse 43, thereby improving the practicality of the teaching and training device.
[0060] In some embodiments, the bottom of the platform 10 is provided with casters 50.
[0061] Specifically, the bottom of the platform 10 is provided with casters 50, which facilitates the movement of the platform 10 and, consequently, the movement of the teaching and training device, thereby improving the practicality of the teaching and training device.
[0062] It should be noted that the platform 10 has four legs, and each leg is equipped with a caster wheel 50.
[0063] In some embodiments, the switch button 312 is located on the upper surface of the control panel 11.
[0064] Specifically, the fault simulation module 30 includes multiple fault components, each of which includes a switch button 312. The switch button 312 is directly related to the on or off state of the fault component. Placing the switch button 312 on the upper surface of the operating table 11 makes it convenient for the user to operate the switch button 312 to set faults on the teaching and training device, thereby improving the practicality of the teaching and training device.
[0065] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this application (including the claims) is limited to these examples; within the scope of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this utility model as described above, which are not provided in the details for the sake of brevity.
[0066] The embodiments of this utility model 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 this utility model should be included within the protection scope of this utility model.
Claims
1. A teaching and training device for diagnosing vehicle windshield wiper circuit faults, characterized in that, include: The frame includes an upper and lower operating table and a mounting bracket; The wiper circuit module includes multiple electrically connected electrical components and is located on the upper surface of the control panel; The fault simulation module includes multiple fault components, which are connected in parallel with the electrical components of the wiper circuit module and are located on the lower surface of the control panel. The drive module is located on the mounting bracket and is electrically connected to the wiper circuit module; The wiper circuit module malfunctions when the faulty component in the fault simulation module is connected.
2. The vehicle wiper circuit fault diagnosis teaching and training device according to claim 1, characterized in that, The fault component includes a five-pin relay and a switch button connected together. The five-pin relay has two output terminals. One output terminal is connected to the input terminal of the electrical component of the wiper circuit module, and the other output terminal is connected to the output terminal of the wiper circuit module through the switch button.
3. The vehicle wiper circuit fault diagnosis teaching and training device according to claim 1, characterized in that, The wiper circuit module includes an intermittent wiper controller, a wiper motor, a wiper switch, a high-speed wiper relay, and a low-speed wiper relay. The fault simulation module includes a first fault component, a second fault component, a third fault component, a fourth fault component, a fifth fault component, a sixth fault component, a seventh fault component, and an eighth fault component. The first fault component is connected in parallel with the low-speed wiper relay, the second fault component is connected in parallel with the high-speed wiper relay, the third fault component is connected in parallel with the wiper motor, the fourth, fifth, and sixth fault components are all connected in parallel with the wiper switch, the seventh fault component is connected in parallel with the intermittent wiper controller, and the eighth fault component is connected in parallel with the wiper circuit module.
4. The vehicle wiper circuit fault diagnosis teaching and training device according to claim 3, characterized in that, The wiper switch includes a first terminal, a second terminal, and a third terminal. The first terminal is connected to the high-speed wiper relay, the second terminal is connected to the low-speed wiper relay and the intermittent wiper controller, and the third terminal is connected to the intermittent wiper controller. A fourth fault component is connected in parallel with the first terminal, a fifth fault component is connected in parallel with the second terminal, and a sixth fault component is connected in parallel with the third terminal.
5. The vehicle wiper circuit fault diagnosis teaching and training device according to claim 1, characterized in that, The drive module includes a battery, a power switch, and a fuse. The positive terminal of the battery, the power switch, and the fuse are connected in series to the input terminal of the wiper circuit module, and the output terminal of the wiper circuit module is connected to the negative terminal of the battery.
6. The vehicle wiper circuit fault diagnosis teaching and training device according to claim 1, characterized in that, The control panel is provided with multiple fixed structures, and each fixed structure is equipped with an electrical component of the wiper circuit module.
7. The vehicle wiper circuit fault diagnosis teaching and training device according to claim 1, characterized in that, The operating table is equipped with a teaching board, which is located near the edge of the operating table and perpendicular to the operating table.
8. The vehicle wiper circuit fault diagnosis teaching and training device according to claim 5, characterized in that, The fuse is a resettable fuse.
9. The vehicle wiper circuit fault diagnosis teaching and training device according to claim 1, characterized in that, The bottom of the platform is equipped with casters.
10. The vehicle wiper circuit fault diagnosis teaching and training device according to claim 2, characterized in that, The switch button is located on the upper surface of the control panel.