Electric motorcycle thermal management system based on PTC technology and convenient to maintain
Through PTC heating technology and dual-fan radiator design, combined with independent cooling circuits and shared water storage tank components, the complex maintenance problem of the electric motorcycle thermal management system is solved, and efficient heat dissipation and temperature control of the motor, electronic control and battery pack are achieved, simplifying the maintenance process.
Patent Information
- Application Number
- CN202422235651.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-09-12
AI Technical Summary
Existing thermal management systems for electric motorcycles increase system integration by integrating liquid cooling control modules, resulting in high maintenance costs and complexity, making effective maintenance difficult.
The use of PTC heating technology and dual-fan radiator design, combined with independent thermal management circuits and a shared water storage tank component, simplifies the system structure and forms independent cooling circuits for the motor, electronic control, and battery pack. The PTC heating component is used to assist heating in low-temperature environments, and the dual-fan radiator dissipates heat efficiently in high-temperature environments.
The electric motorcycle can be operated stably and efficiently under different environmental conditions, which simplifies maintenance operations and reduces the complexity and maintenance costs of the system.
Smart Images
Figure CN223315142U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of thermal management systems for electric motorcycles, and in particular relates to a thermal management system for electric motorcycles that is based on PTC technology and is easy to maintain. Background Art
[0002] As people's environmental awareness increases, electric motorcycles are becoming more and more popular. During the use of electric motorcycles, it is necessary to ensure that its main components, such as motors, electronic controls, battery packs and other components, have good heat dissipation to ensure a low failure rate. Therefore, the performance of the electric motorcycle's thermal management system is crucial.
[0003] Problems with existing technologies:
[0004] Most existing electric motorcycle thermal management systems increase system integration and reduce size by integrating liquid cooling control modules, but this correspondingly increases the difficulty of the process, making the system maintenance cost and complexity high and inconvenient to maintain. Utility Model Content
[0005] The purpose of this utility model is to provide an electric motorcycle thermal management system based on PTC technology and easy to maintain, which can solve the problem that most existing electric motorcycle thermal management systems increase system integration and reduce volume by integrating liquid cooling control modules, but correspondingly increase the difficulty of the process, resulting in high maintenance costs and complexity of the system, making it inconvenient to maintain the system.
[0006] The technical solutions adopted by this utility model are as follows:
[0007] A PTC-based thermal management system for an electric motorcycle that is easy to maintain includes a first radiator and a second radiator. The first radiator is connected to a first temperature sensor, which is connected to an electronic control unit, which is connected to a motor, which is connected to a second temperature sensor, which is connected to a first water pump, which is connected to a first water pump.
[0008] The radiator 2 is connected to the three-way pipe, the three-way pipe is connected to the temperature sensor 3, the temperature sensor 3 is connected to the battery pack, the battery pack is connected to the temperature sensor 4, the temperature sensor 4 is connected to the water pump 2, the water pump 2 is connected to the three-way electronic water valve, the three-way electronic water valve is respectively connected to the radiator 2 and the PTC heating component, and the PTC heating component is connected to the three-way pipe.
[0009] The first radiator is provided with a filling assembly 1, and the second radiator is provided with a filling assembly 2, and both the first filling assembly and the second filling assembly are connected to the water storage pot assembly.
[0010] The first radiator is a single-fan radiator, and the second radiator is a dual-fan radiator.
[0011] The technical effects achieved by this utility model are:
[0012] This thermal management system uses PTC heating technology to effectively manage the performance of the battery pack in low temperature environments, and through the design of dual fan radiators, it can ensure efficient heat exchange in high temperature environments. The system can effectively avoid thermal interference between different components by adopting two independent thermal management circuits, and effectively simplify the structure of the system by sharing the water storage pot assembly, reducing the complexity of the process, so that operators can easily maintain the system. The system can effectively solve the heat dissipation and temperature control problems of the motor, electronic control and battery pack on the electric motorcycle through the coordination of components such as radiator 1, radiator 2, PTC heating assembly, water pump 1, water pump 2, water storage pot assembly, tee pipe and tee electronic water valve, ensuring stable and efficient operation of the system under various working conditions. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a system flow diagram of the present utility model.
[0014] In the accompanying drawings, the components represented by the reference numerals are as follows:
[0015] 1. Motor; 2. Electronic control; 3. Temperature sensor 1; 4. Temperature sensor 2; 5. Water pump 1; 6. Radiator 1; 7. Filling assembly 1; 8. Water tank assembly; 9. Filling assembly 2; 10. Radiator 2; 11. Water pump 2; 12. Temperature sensor 4; 13. Battery pack; 14. Temperature sensor 3; 15. Three-way pipe; 16. PTC heating assembly; 17. Three-way electronic water valve. DETAILED DESCRIPTION
[0016] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention and does not strictly limit the scope of protection of the present invention.
[0017] like Figure 1As shown, a thermal management system for an electric motorcycle based on PTC technology and easy to maintain includes a radiator 16 and a radiator 2 10. The radiator 16 is connected to a temperature sensor 3, which is connected to an electronic control 2, which is connected to a motor 1, which is connected to a temperature sensor 24, which is connected to a water pump 5, which is connected to a radiator 6. The motor 1 and the electronic control 2 are connected via the water pump 5 and the radiator 6, thereby forming a circuit of the motor 1 and the electronic control 2. In this circuit, the motor 1 is cooled by the water pump 5 and the radiator 6, thereby ensuring that the temperature of the motor 1 is always within a normal range during use. The electronic control 2 monitors the temperature in the circuit via the temperature sensor 3. In the circuit of the motor 1 and the electronic control 2, the water pump 5 is used to control the circulation of the coolant, and the temperature sensor 24 is used to monitor the temperature of the motor 1 in real time.
[0018] The radiator 2 10 is connected to the three-way pipe 15, the three-way pipe 15 is connected to the temperature sensor 3 14, the temperature sensor 3 14 is connected to the battery pack 13, the battery pack 13 is connected to the temperature sensor 4 12, the temperature sensor 4 12 is connected to the water pump 2 11, the water pump 2 11 is connected to the three-way electronic water valve 17, the three-way electronic water valve 17 is respectively connected to the radiator 2 10 and the PTC heating component 16, the PTC heating component 16 is connected to the three-way pipe 15, the battery pack 13 is connected to the radiator 2 10 through the water pump 2 11, thereby forming a battery pack 13 circuit, in which the PTC heating component 16 is used for auxiliary heating of the circuit, the radiator 2 1 0 can ensure that the battery pack 13 is effectively cooled at high temperatures. The third temperature sensor 14 and the fourth temperature sensor 12 are used to monitor the temperature status of the battery pack 13 and the second radiator 10 respectively. The flow of coolant in the battery pack 13 circuit is controlled by a three-way electronic water valve 17. The three-way electronic water valve 17 has a three-way one-inlet and two-outlet design. The PTC heating component 16 can be turned on when the temperature of the battery pack 13 is low. By heating the coolant in the battery pack 13 circuit, the normal operation of the battery pack 13 in a low temperature environment is ensured. When the temperature of the battery pack 13 is high, the coolant in this circuit is dissipated and cooled through the second radiator 10. When necessary, the two fans provided on the second radiator 10 are automatically turned on to improve the heat dissipation efficiency.
[0019] Radiator 1 is provided with a filling component 1 7, and radiator 2 10 is provided with a filling component 2 9, and both the filling component 1 7 and the filling component 2 9 are connected to the water storage pot component 8. Radiator 1 6 is a single-fan radiator, and radiator 2 10 is a dual-fan radiator. The filling component 1 7 and the filling component 2 9 can be used to inject coolant into the cooling circuits of the motor 1 and the electronic control 2 and the cooling circuit of the battery pack 13 respectively. The cooling circuits of the motor 1 and the electronic control 2 and the cooling circuit of the battery pack 13 share a water storage pot component 8, which is used for storing and replenishing the coolant.
[0020] The working principle of this utility model is:
[0021] Independent cooling circuits are formed on the motor 1 and electronic control 2 sides and the battery pack 13 side respectively, which do not interfere with each other. When the temperature is low, the battery pack 13 circuit heats the coolant in the circuit through the PTC heating component 16 to increase the temperature of the battery pack 13. When the temperature is high, the battery pack 13 circuit is cooled by radiator 2 10, and the motor 1 and electronic control 2 circuits cool the electronic control 2 and motor 1 through radiator 1 6. When necessary, radiator 1 6 and radiator 2 10 can both start the fans provided thereon to accelerate cooling. During high-voltage fast charging, the fans provided on radiator 2 10 in the battery pack 13 circuit and radiator 1 6 in the motor 1 and electronic control 2 circuits can both be turned on to accelerate heat dissipation. Filling component 1 7 and filling component 2 9 are used to inject coolant into the two cooling circuits respectively.
[0022] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.
Claims
1. A thermal management system for an electric motorcycle based on PTC technology and easy to maintain, comprising a radiator 1 (6) and a radiator 2 (10), characterized in that: The radiator 1 (6) is connected to the temperature sensor 1 (3), the temperature sensor 1 (3) is connected to the electric control (2), the electric control (2) is connected to the motor (1), the motor (1) is connected to the temperature sensor 2 (4), the temperature sensor 2 (4) is connected to the water pump 1 (5), and the water pump 1 (5) is connected to the radiator 1 (6); The radiator 2 (10) is connected to the three-way pipe (15), the three-way pipe (15) is connected to the temperature sensor 3 (14), the temperature sensor 3 (14) is connected to the battery pack (13), the battery pack (13) is connected to the temperature sensor 4 (12), the temperature sensor 4 (12) is connected to the water pump 2 (11), the water pump 2 (11) is connected to the three-way electronic water valve (17), the three-way electronic water valve (17) is respectively connected to the radiator 2 (10) and the PTC heating component (16), and the PTC heating component (16) is connected to the three-way pipe (15).
2. The PTC-based thermal management system for electric motorcycles according to claim 1, which is easy to maintain, is characterized by: The radiator 1 (6) is provided with a filling assembly 1 (7), and the radiator 2 (10) is provided with a filling assembly 2 (9), and both the filling assembly 1 (7) and the filling assembly 2 (9) are connected to the water storage pot assembly (8).
3. The PTC-based thermal management system for electric motorcycles according to claim 1, which is easy to maintain, is characterized by: The radiator 1 (6) is a single-fan radiator, and the radiator 2 (10) is a dual-fan radiator.