Diesel engine cooling system maintenance electric drive module teaching aid

Abstract

The utility model provides a diesel engine cooling system maintenance electric drive module teaching aid, it includes: teaching aid assembly, teaching aid assembly upper fixed mounting has mould assembly, mould assembly includes cylinder body, cylinder cover, water storage pot, water tank, silicon oil clutch and water pump, cylinder cover and water tank all are through hose with water storage pot intercommunication, is equipped with the gap on the hose, and water -resistant lamp strip is arranged in the hose. The application can directly show the cooling liquid flow process, and dynamically simulate various working condition changes, the waterway adopts the dyed transparent material and the color separation LED lamp, the LED water flow lamp and the electric drive water pump can restore a plurality of cooling conditions, the high temperature water uses the red light, the low temperature water uses the green light to show, demonstrates the cooling effect, the remote control and the panel can be used at will, the control button has the interlock logic between, ensures that only one mode is demonstrated each time, the water pump + motor drive cooling liquid real circulation, is closer to the engine operating state, is convenient for maintenance, replacement, extension upgrade, improves the teaching efficiency and effect.

Description

Technical Field

[0001] This utility model relates to a teaching aid for an electric drive module for the maintenance of a diesel engine cooling system, belonging to the technical field of automotive power system teaching equipment. Background Technology

[0002] Diesel engine cooling systems primarily use liquid cooling, employing coolant as the heat transfer medium. Its core components include: Radiator: The system's heat exchange center, dissipating heat absorbed from the engine into the air. It is typically made of aluminum or copper, with internal fine pipes and numerous external fins to maximize heat dissipation area. It has a filler neck at the top (usually integrated with the radiator cap) and a drain plug at the bottom; Water pump: Powers the coolant circulation, typically a centrifugal pump driven by the engine crankshaft via a belt (such as a timing belt or V-belt). The water pump operates continuously as long as the engine is running; Thermostat: A key component for achieving both "small circulation" and "large circulation." It is a temperature-controlled valve with an internal paraffin temperature-sensing element. When the coolant temperature drops below a set value (e.g., 80°C), the thermostat closes, preventing coolant from flowing through the radiator and allowing for "small circulation," thus quickly warming up the engine (warm-up). When the temperature exceeds the set value, the thermostat opens, and the coolant flows through the radiator in a "large circulation" to enhance heat dissipation; the cooling fan increases the airflow through the radiator, improving heat dissipation efficiency. This is especially crucial under low-speed, heavy-load conditions (such as trucks climbing hills); the coolant is not just water, but a mixture of water and antifreeze (usually ethylene glycol), which raises the boiling point, lowers the freezing point, prevents corrosion, and inhibits scale formation; the water jackets in the cylinder block and cylinder head allow the coolant to flow through these cast cavities, directly absorbing heat from high-temperature components such as the cylinders, combustion chamber, and valves; the expansion tank (auxiliary tank) holds the liquid that overflows due to the expansion of the coolant when heated, and replenishes it when the cooling system cools down, keeping the system full and venting air; other important components include the water temperature sensor, heater core, belt, and tensioner pulley.

[0003] The diesel engine cooling system is a crucial system for the normal operation of the engine. The diesel engine cooling system maintenance electric drive module teaching aid is a modular teaching aid rack designed for teaching the structure, working process, and maintenance of diesel engine cooling systems. It is widely used in technical schools, vocational education, automotive repair training, and science popularization demonstrations. However, it has the following drawbacks: The cooling water circuit is not visualized: traditional equipment is mostly a closed structure, making it impossible to intuitively observe the coolant flow path and state changes; Dynamic process demonstration is insufficient: it is difficult to fully simulate different cooling states such as engine cold start, small circulation, large circulation, and faults; The operating system is fragmented and cumbersome: the various functional control modules are scattered, lacking centralized control, making it difficult to switch scenarios during teaching; Maintenance and safety are insufficient: the equipment is difficult to repair and has poor protection performance, making it unsuitable for long-term teaching use. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, this utility model provides a teaching aid for an electric drive module for the maintenance of a diesel engine cooling system.

[0005] This utility model solves the above-mentioned technical problems through the following technical solutions: This utility model provides a teaching aid for an electric drive module for the maintenance of a diesel engine cooling system, including a teaching aid assembly. The teaching aid assembly consists of a platform and a side frame. The side frame is fixedly installed on one side of the top of the platform. A mold assembly is fixedly installed on the side frame. The mold assembly includes a cylinder block, a cylinder head, a water reservoir, a water tank, a silicone oil clutch, and a water pump. The cylinder block, cylinder head, water reservoir, water tank, silicone oil clutch, and water pump are all fixedly installed on the side wall of the side frame. The cylinder body is connected to the cylinder head and the water tank via flexible hoses. The cylinder head and the water tank are both connected to the water reservoir via flexible hoses. The flexible hose located at the cylinder head has a notch, and a transparent tube is sealed at the notch. A waterproof LED strip is arranged inside the flexible hose.

[0006] In this technical solution, the platform is equipped with casters on all four sides of its bottom, and the side frame is equipped with a display area on its top.

[0007] In this technical solution, the mold assembly is located below the display area, and lighting lamps are provided on the side frame edges around the module layer.

[0008] In this technical solution, the cylinder and the water tank are respectively installed on both sides of the bottom of the side frame. The hose between the cylinder and the water tank is the main pipe, and the main pipe is installed above the platform. A transparent bracket is fixedly connected to the top of the platform, and the hose is fixedly connected to the top of the transparent bracket.

[0009] In this technical solution, the cylinder head is located above the cylinder block, and the cylinder block and cylinder head are connected by multiple flexible hoses, with the flexible hoses between the cylinder block and cylinder head being branch pipes.

[0010] In this technical solution, the cylinder head is connected to the water reservoir and the water tank respectively through hoses at both ends. The hose between the cylinder head and the water reservoir is a branch pipe, and the hose between the cylinder head and the water tank is the main pipe.

[0011] In this technical solution, the water storage vessel is connected to the water tank and the hose respectively through two branch pipes.

[0012] In this technical solution, the silicone oil clutch and the water pump are respectively installed on the top two sides of the side frame. The water pump consists of a housing, impeller, water seal, water pump shaft and bearing, and the water pump shaft is connected to the motor through a pulley.

[0013] In this technical solution, one end of the light strip is located at the notch in the flexible tube, and the light strip is composed of a flowing light strip that can display red, green and yellow colors.

[0014] In this technical solution, a plurality of evenly distributed indicator lights are provided on one side of the side bracket. The indicator lights are located on one side of the cylinder block and are respectively fault, coolant replacement, external circulation, internal / external circulation and internal circulation indicator lights.

[0015] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0016] The positive and progressive effects of this utility model are as follows: The aforementioned electric-drive module teaching aid for diesel engine cooling system maintenance provides a new type of teaching aid rack that offers visualization of the cooling system flow path, accurate dynamic demonstration, convenient centralized control, and safety and reliability. It can intuitively display the coolant flow process and dynamically simulate various operating conditions, improving teaching efficiency and effectiveness. The water circuit uses colored transparent materials and color-coded LED lights to enhance the intuitiveness of learning. The LED flowing lights and electric-driven water pump can realistically reproduce various cooling conditions (small circulation, large circulation, fluid change, fault). High-temperature water is indicated by red lights and low-temperature water by green lights, demonstrating the cooling effect. The remote control and panel can be used at will, and the control buttons have interlocking logic to ensure that only one mode is demonstrated at a time. The water pump and motor drive the coolant to circulate realistically, which is closer to the engine's operating state. The modular design has a clear structure, making it easy to maintain, replace, expand, and upgrade. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0018] Figure 2 This is a front view structural diagram of the present utility model.

[0019] Explanation of reference numerals in the attached figures 10. Teaching aid assembly; 11. Platform; 12. Side frame; 13. Display area; 14. Transparent bracket; 15. Roller; 20. Mold assembly; 21. Cylinder block; 211. Light strip; 212. Transparent tube; 22. Cylinder head; 23. Water reservoir; 24. Water tank; 25. Hose; 26. Silicone oil clutch; 27. Water pump; 28. Indicator light. Detailed Implementation

[0020] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0021] like Figure 1-2As shown, the diesel engine cooling system maintenance electric drive module teaching aid includes a teaching aid assembly. The teaching aid assembly consists of a platform and a side frame. The side frame is fixedly installed on one side of the top of the platform. A mold assembly is fixedly installed on the side frame. The mold assembly includes a cylinder block, a cylinder head, a water reservoir, a water tank, a silicone oil clutch, and a water pump. The cylinder block, cylinder head, water reservoir, water tank, silicone oil clutch, and water pump are all fixedly installed on the side wall of the side frame. The cylinder body is connected to the cylinder head and the water tank via flexible hoses. The cylinder head and the water tank are both connected to the water reservoir via flexible hoses. The flexible hose located at the cylinder head has a notch, and a transparent tube is sealed at the notch. A waterproof LED strip is arranged inside the flexible hose.

[0022] The platform is equipped with rollers on all four sides of its bottom, and a display area is provided on the top of the side frame; the mold assembly is located below the display area, and lighting is provided on the edge of the side frame around the module layer.

[0023] In this technical solution, the display area is used to display the overall content of the teaching aid, which facilitates teaching, and the lighting can improve the lighting effect and facilitate effective observation.

[0024] The cylinder and water tank are respectively installed on both sides of the bottom of the side frame. The hose between the cylinder and the water tank is the main pipe, and the main pipe is installed above the platform. A transparent bracket is fixedly connected to the top of the platform, and the hose is fixedly connected to the top of the transparent bracket.

[0025] The equipment is installed on a metal support platform and features fireproof and electric shock protection to ensure safety during the teaching process.

[0026] In this technical solution, the Dongfeng Cummins 4.0T diesel engine block is selected as the base, and the cooling structure is completely retained, including core components such as water jacket, water pump, water tank, thermostat, and water reservoir.

[0027] The cylinder head is located above the cylinder block, and the cylinder block and cylinder head are connected by multiple hoses, with the hose between the cylinder block and cylinder head being a branch pipe; the cylinder head is connected to the water reservoir and the water tank respectively through hoses at both ends, with the hose between the cylinder head and the water reservoir being a branch pipe, and the hose between the cylinder head and the water tank being the main pipe.

[0028] In this technical solution, a notch is provided on the hose and the notch is sealed with a transparent cap, which facilitates observation inside the hose without affecting the simulated operation of the cooling system.

[0029] Specifically, the engine is partially dissected to highlight the key cooling water circuits. The coating and polishing processes enhance the structural recognizability and aesthetic appeal for teaching purposes. Furthermore, the water circuits are made of dyed transparent silicone tubing, with the pipe diameters distinguished from the main and branch pipes according to the original vehicle system, further improving identification.

[0030] The water reservoir is connected to the water tank and the hose respectively through two branch pipes; the silicone oil clutch and the water pump are respectively located on the top of the side frame. The water pump consists of a housing, impeller, water seal, water pump shaft and bearing, and the water pump shaft is connected to the motor through a pulley.

[0031] In this technical solution, a water pump driven by a motor is used to realize the actual circulation of coolant in the pipeline; a wall-mounted control panel and remote control are configured to switch to any demonstration scene with one click, and an interlocking control mechanism is supported.

[0032] One end of the light strip is located at the notch in the hose, and the light strip is composed of a flowing light strip that can display red, green and yellow colors; multiple evenly distributed indicator lights are provided on one side of the side bracket, and the indicator lights are located on the side of the cylinder block. The indicator lights are respectively fault, coolant replacement, external circulation, internal / external circulation and internal circulation indicator lights.

[0033] In this technical solution, LED flowing lights are embedded in the hose, with red representing high-temperature coolant and green representing low-temperature coolant. The lighting effect dynamically simulates scenarios such as small circulation, large circulation, coolant replacement, and malfunction.

[0034] The system is connected to an external standard AC 220V±10% 50Hz power supply, which outputs 12V DC power through an internal converter to power all electrical appliances and light strips.

[0035] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A teaching aid for an electric drive module used in the maintenance of a diesel engine cooling system, comprising a teaching aid assembly, wherein the teaching aid assembly consists of a platform and a side frame, the side frame being fixedly installed on one side of the top of the platform, and a mold assembly being fixedly installed on the side frame, characterized in that... The mold assembly includes a cylinder block, cylinder head, water reservoir, water tank, silicone oil clutch, and water pump. The cylinder block, cylinder head, water reservoir, water tank, silicone oil clutch, and water pump are all fixedly installed to the side wall of the side frame. The cylinder body is connected to the cylinder head and the water tank via flexible hoses. The cylinder head and the water tank are both connected to the water reservoir via flexible hoses. The flexible hose located at the cylinder head has a notch, and a transparent tube is sealed at the notch. A waterproof LED strip is arranged inside the flexible hose.

2. The teaching aid for the maintenance electric drive module of the diesel engine cooling system as described in claim 1, characterized in that: The platform is equipped with casters around its bottom, and a display area is located on the top of the side frame.

3. The teaching aid for the maintenance electric drive module of the diesel engine cooling system as described in claim 1, characterized in that: The mold assembly is located below the display area, and lighting lights are provided on the side frame edges around the module layer.

4. The teaching aid for the maintenance electric drive module of the diesel engine cooling system as described in claim 1, characterized in that: The cylinder and water tank are respectively installed on both sides of the bottom of the side frame. The hose between the cylinder and the water tank is the main pipe, and the main pipe is installed above the platform. A transparent bracket is fixedly connected to the top of the platform, and the hose is fixedly connected to the top of the transparent bracket.

5. The teaching aid for maintaining the diesel engine cooling system electric drive module as described in claim 1, characterized in that: The cylinder head is located above the cylinder block, and the cylinder block and cylinder head are connected by multiple flexible hoses, with the flexible hoses between the cylinder block and cylinder head being branch pipes.

6. The teaching aid for the maintenance electric drive module of the diesel engine cooling system as described in claim 1, characterized in that: The cylinder head is connected to the water reservoir and the water tank via hoses at both ends, with the hose between the cylinder head and the water reservoir being a branch pipe and the hose between the cylinder head and the water tank being the main pipe.

7. The teaching aid for the maintenance electric drive module of the diesel engine cooling system as described in claim 1, characterized in that: The water reservoir is connected to the water tank and the hose via two branch pipes, respectively.

8. The teaching aid for the maintenance electric drive module of the diesel engine cooling system as described in claim 1, characterized in that: The silicone oil clutch and the water pump are respectively located on the top of the side frame. The water pump consists of a housing, impeller, water seal, water pump shaft and bearing, and the water pump shaft is connected to the motor through a pulley.

9. The teaching aid for the maintenance electric drive module of the diesel engine cooling system as described in claim 1, characterized in that: One end of the light strip is located at the notch in the flexible tube, and the light strip consists of a flowing light strip that can display red, green and yellow colors.

10. The teaching aid for the maintenance electric drive module of the diesel engine cooling system as described in claim 1, characterized in that: The side frame is equipped with multiple evenly distributed indicator lights on one side. The indicator lights are located on the side of the cylinder block and are respectively malfunction, coolant replacement, external circulation, internal / external circulation, and internal circulation indicator lights.

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