Waste heat recycling device for new energy automobile generator

Abstract

The invention relates to the technical field of energy recovery and utilization, and discloses a waste heat recycling device for a new energy automobile generator, which comprises a heat pipe, a steam cavity is arranged in the heat pipe, a pipe core is arranged on the inner wall of the steam cavity of the heat pipe, and a plurality of thermoelectric power generation sheets are arranged on the outer wall of the heat pipe. A heat conduction base is arranged at the top end of the thermoelectric power generation piece, a plurality of heat dissipation fins are arranged at the top end of the heat conduction base, a plurality of heat conduction pipes are arranged in the middles of the heat dissipation fins, a heat dissipation fan is arranged at the top end of each heat conduction pipe, and a connecting wire is arranged on one side of the thermoelectric power generation piece. Heat generated in the operation process of the new energy automobile generator is collected and converted into electric energy, and the electric energy is boosted, so that the electric energy can meet the voltage requirements of other electric equipment of the automobile, and the effects of effective recycling of waste heat of the generator and reasonable conversion of the electric energy are achieved. The problem of waste heat waste of the generator is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of energy recovery and utilization, and particularly to a waste heat recovery and utilization device for a generator of a new energy vehicle. Background Art

[0002] With the increasing global emphasis on environmental protection and energy sustainable development, the new energy vehicle industry has developed rapidly. Due to its advantages of low emissions or even zero emissions, new energy vehicles are gradually becoming the mainstream development direction in the future transportation field. However, during the actual operation of new energy vehicles, although there has been a significant improvement in energy utilization efficiency compared to traditional fuel vehicles, there is still much room for optimization. In particular, the utilization of waste heat generated during the operation of various vehicle components has not reached an ideal level.

[0003] During the power generation process of the generator in a new energy vehicle, a large amount of heat will inevitably be generated. On the one hand, if this heat cannot be dissipated in a timely and effective manner, it will lead to too high a temperature inside the generator, affecting its performance and service life. For example, high temperature may cause the insulation performance of the generator winding to decline, increase component wear, etc., thereby reducing the power generation efficiency and even causing failures. On the other hand, currently, most new energy vehicles only take conventional heat dissipation measures to discharge this part of heat into the external environment, without fully recovering and utilizing the energy contained therein, resulting in a waste of energy. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a waste heat recovery and utilization device for a generator of a new energy vehicle, which solves the problem of waste of generator waste heat.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A waste heat recovery and utilization device for a generator of a new energy vehicle, including a heat pipe. A steam chamber is provided inside the heat pipe. A wick is provided on the inner wall of the steam chamber of the heat pipe. A number of thermoelectric generators are provided on the outer wall of the heat pipe. A heat conducting base is provided at the top of the thermoelectric generator. A number of heat dissipation fins are provided at the top of the heat conducting base. A number of heat conducting tubes are provided in the middle of the heat dissipation fins. A heat dissipation fan is provided at the top of the heat conducting tube. A connection line is provided on one side of the thermoelectric generator. One end of the connection line is electrically connected to a step-up transformer. One side of the step-up transformer is provided on the outer wall of the heat pipe.

[0006] Preferably, a front cover is provided on one side of the heat pipe. A rotating shaft is rotatably connected to the middle of the front cover. A rear cover is provided on the other side of the heat pipe. A stator is provided on the inner wall of the heat pipe. A number of stator windings are provided on the outer wall of the stator. A front stator winding ring is provided on one side of the stator and the stator windings. A rear stator winding ring is provided on the other side of the stator and the stator windings.

[0007] Preferably, one end of the outer wall of the rotating shaft is provided with a first bearing, one side of the first bearing is provided with an axial flow fan, the middle of the axial flow fan is arranged on the outer wall of the rotating shaft, the middle of the outer wall of the rotating shaft is provided with a rotor, the other end of the outer wall of the rotating shaft is provided with a second bearing, slip rings are symmetrically arranged on one side of the second bearing, a brush is arranged on the outer wall of the slip ring, the middle of the slip ring is arranged on the outer wall of the rotating shaft, and a rectifier is arranged on one side of the middle of the rotating shaft.

[0008] Preferably, a plurality of rotor windings are arranged on the outer wall of the rotor, a plurality of exciting coils are arranged on one side of the rotor windings, a front rotor winding ring is arranged at one ends of the exciting coils and the rotor windings, and a rear rotor winding ring is arranged at the other ends of the exciting coils and the rotor windings.

[0009] A system of a new energy vehicle generator, for the waste heat recovery and utilization device of a new energy vehicle generator as claimed in the claims, includes the following modules:

[0010] A sensor module, for real-time monitoring of relevant physical parameters of each key part in the waste heat recovery and utilization device of a new energy vehicle generator, and providing accurate data support for the intelligent control of the whole device;

[0011] A data processing module, for processing and analyzing various types of original data collected by the sensor module, and converting it into effective information that can be utilized by the intelligent control system;

[0012] A control execution module, for receiving control instructions transmitted by the data processing module, and performing actual operations and adjustments on relevant components in the waste heat recovery and utilization device of a new energy vehicle generator according to these instructions;

[0013] A communication and display module, for realizing data interaction between the waste heat recovery and utilization device and other vehicle systems through a communication interface; intuitively displaying the working state, key data and fault information content of the device by means of a display unit.

[0014] Preferably, the sensor module includes:

[0015] A temperature sensor unit, for real-time monitoring of the temperature conditions of each key component of the new energy vehicle generator and the waste heat recovery and utilization device;

[0016] A current and voltage sensor unit, for real-time monitoring of the current and voltage conditions of each relevant circuit node in the waste heat recovery and utilization device of the new energy vehicle generator;

[0017] A rotational speed sensor unit, for real-time measurement of the rotational speed of the new energy vehicle generator.

[0018] Preferably, the data processing module includes:

[0019] A signal conditioning circuit unit for preprocessing various raw signals collected by the sensor;

[0020] A data acquisition unit for collecting various analog signals processed by the signal conditioning circuit according to a specific sampling frequency and converting them into digital signals;

[0021] A microprocessor unit for performing operations and logical judgments on the collected digital signal data and generating corresponding control instructions according to preset rules.

[0022] Preferably, the control execution module includes:

[0023] A heat dissipation control unit for precisely adjusting the rotation speeds of the heat dissipation fan and the axial flow fan heat dissipation components in the waste heat recovery and utilization device for a new energy vehicle generator according to the control instructions of the system;

[0024] An energy conversion and regulation unit for regulating the relevant links involving electric energy conversion in the waste heat recovery and utilization device for a new energy vehicle generator according to the control instructions of the system.

[0025] Preferably, the communication and display module includes:

[0026] A communication interface unit for realizing data communication between the waste heat recovery and utilization device for a new energy vehicle generator and other systems inside the vehicle and relevant external platforms;

[0027] A display unit for intuitively presenting the working status, key parameters, and fault information content of the waste heat recovery and utilization device for a new energy vehicle generator.

[0028] Working principle: This device works around the waste heat recovery and utilization of a new energy vehicle generator. First, when the generator operates, heat is generated. The heat pipe, with its internal steam cavity and wick, realizes heat conduction through the evaporation and condensation cycle of the working fluid, transferring the heat to the thermoelectric generator on the outer wall. The thermoelectric generator relies on the Seebeck effect and uses the temperature difference created by the heat conduction base, heat dissipation fins, heat conduction pipe, and heat dissipation fan to convert heat energy into electrical energy, which is then transmitted to the step-up transformer through the connecting wire for voltage boosting to adapt to the vehicle's electrical equipment.

[0029] During operation, the sensor module plays a monitoring role. The temperature, current and voltage, and rotation speed sensors respectively collect the corresponding key parameter information and convert it into electrical signals. The signal conditioning circuit unit of the data processing module preprocesses the raw signals, the data acquisition unit converts the analog signals into digital signals, and the microprocessor unit generates control instructions after performing operations and judgments.

[0030] The control execution module acts according to instructions. The heat dissipation control unit uses technologies such as PWM to adjust the rotation speeds of the cooling fan and the axial flow fan, precisely controlling the heat dissipation intensity. The energy conversion and regulation unit optimizes the power conversion link by adjusting the turns ratio of the step-up transformer, etc., ensuring the efficient conversion and utilization of electrical energy.

[0031] The communication and display module ensures internal and external communication and information presentation. The communication interface unit uses various communication protocols to achieve data interaction with the vehicle's internal system and external platforms. The display unit intuitively displays the working state, key parameters, and fault information of the device by means of liquid crystal or LED display technology.

[0032] All components and modules of the entire device cooperate with each other to form a complete closed-loop system, realizing the effective recovery and utilization of the waste heat of the new energy vehicle generator and the intelligent management and control of the device, improving the energy utilization efficiency and operation stability.

[0033] The present invention provides a waste heat recovery and utilization device for a new energy vehicle generator. It has the following beneficial effects:

[0034] 1. By collecting the heat generated during the operation of the new energy vehicle generator, converting it into electrical energy, and boosting the voltage of the electrical energy, the present invention enables it to better adapt to the voltage requirements of other electrical devices in the vehicle, achieving the effective recovery and utilization of the waste heat of the generator and the reasonable conversion and adaptation of electrical energy. The problem of waste of generator waste heat is solved.

[0035] 2. Through the rotational connection between the front cover and the rotating shaft, the present invention provides reliable support and positioning for the rotation of the rotating shaft, ensuring that the rotating shaft does not shift or shake during rotation, guaranteeing that it can stably transmit the externally input power to subsequent components such as the rotor, maintaining the normal operation of the mechanical transmission system of the entire generator, and avoiding problems such as component wear and reduced power generation efficiency caused by unstable mechanical connections. The problem of poor mechanical rotation stability is solved.

[0036] 3. By precisely and real-time monitoring the temperatures of the key components of the new energy vehicle generator and the waste heat recovery and utilization device, the present invention can timely and accurately obtain the temperature values of each component under different working conditions, providing reliable data support for subsequent judgment of the working state of the components and whether there is an overheating risk, etc., facilitating the effective regulation of the thermal management of the entire device. The problem of being unable to intuitively understand the temperature conditions of each key component is solved.

[0037] 4. Through the optimized processing of the original signals collected by the sensors, the present invention transforms the signals that might originally be weak, interfered with by noise, and have irregular waveforms into signals with appropriate amplitudes, purity, and regular waveforms. This lays a good foundation for subsequent data collection and more in-depth data analysis and processing, improves the reliability and accuracy of the signals in the entire data processing process, and ensures that the subsequent modules can operate effectively based on high-quality signals. It solves the problem that the original signals collected by the sensors are vulnerable to external environmental interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a front three-dimensional schematic diagram of the present invention;

[0039] Figure 2 is a partial structural schematic diagram of the heat dissipation fins of the present invention;

[0040] Figure 3 is a partial structural schematic diagram of the stator of the present invention;

[0041] Figure 4 is a partial structural schematic diagram of the slip ring of the present invention;

[0042] Figure 5 is a partial structural schematic diagram of the axial flow fan of the present invention;

[0043] Figure 6 is a partial structural schematic diagram of the rectifier of the present invention;

[0044] Figure 7 is a system module architecture diagram of a new energy vehicle generator of the present invention;

[0045] Figure 8 is a system sensor module architecture diagram of a new energy vehicle generator of the present invention;

[0046] Figure 9 is a system data processing module architecture diagram of a new energy vehicle generator of the present invention;

[0047] Figure 10 is a system control execution module architecture diagram of a new energy vehicle generator of the present invention;

[0048] Figure 11 is a system communication and display module architecture diagram of a new energy vehicle generator of the present invention.

[0049] Among them, 1. heat pipe; 2. rear cover; 3. radiator fan; 4. heat dissipation fins; 5. front cover; 6. rotating shaft; 7. step-up transformer; 8. connecting wire; 9. heat conduction pipe; 10. heat conduction base; 11. thermoelectric generator; 12. stator; 13. front stator winding ring; 14. axial flow fan; 15. bearing one; 16. brush; 17. rear stator winding ring; 18. rectifier; 19. bearing two; 20. slip ring; 21. steam chamber; 22. stator winding; 23. front rotor winding ring; 24. exciting coil; 25. rotor winding; 26. rear rotor winding ring; 27. rotor. Specific implementation manners

[0050] The technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0051] Please refer to the attached Figure 1 - attached Figure 2 、attached Figure 5 , the embodiment of the present invention provides a waste heat recovery and utilization device for a new energy vehicle generator, including a heat pipe 1. A steam chamber 21 is arranged inside the heat pipe 1. A pipe core is arranged on the inner wall of the steam chamber 21 of the heat pipe 1. A plurality of thermoelectric generators 11 are arranged on the outer wall of the heat pipe 1. A heat conduction base 10 is arranged at the top of the thermoelectric generator 11. A plurality of heat dissipation fins 4 are arranged at the top of the heat conduction base 10. A plurality of heat conduction pipes 9 are arranged in the middle of the heat dissipation fins 4. A radiator fan 3 is arranged at the top of the heat conduction pipe 9. A connecting wire 8 is arranged on one side of the thermoelectric generator 11. One end of the connecting wire 8 is electrically connected to a step-up transformer 7. One side of the step-up transformer 7 is arranged on the outer wall of the heat pipe 1.

[0052] Specifically, a steam chamber 21 is provided inside the heat pipe 1, and a wick is provided on the inner wall of the steam chamber 21. Its working principle is based on the heat conduction characteristics of the heat pipe. When the generator generates heat, the heat is transferred to the heat pipe 1. The working fluid inside the heat pipe 1 is heated and evaporated at one end close to the heat source, forming steam. The steam carries the heat and flows along the steam chamber 21 to the other end with a relatively lower temperature. At this end, the steam will condense back into a liquid state when it meets the cold, and then flows back to the evaporation end through the capillary action of the wick. This cycle repeats, achieving efficient heat transfer from the generator to the outer wall of the heat pipe 1. The heat dissipation fins 4 rely on increasing the contact area with the air to enhance heat exchange. When the cooling fan 3 is started, the air flows through the heat dissipation fins 4 at an accelerated speed under the action of the cooling fan 3, taking away the heat on the heat dissipation fins 4, so that the cold end of the thermoelectric generator 11 can continuously maintain a relatively low temperature, maintain the temperature difference with the hot end, and ensure the normal power generation operation of the thermoelectric generator 11. At the same time, the heat conduction pipe 9 plays a role in further conducting heat, transferring the heat absorbed by the heat dissipation fins 4 to the area where the cooling fan 3 acts more efficiently, and accelerating the heat dissipation speed.

[0053] A number of thermoelectric generators 11 are provided on the outer wall of the heat pipe 1, and the thermoelectric generators 11 work based on the Seebeck effect. Under the action of the heat conduction base 10, the heat transferred from the heat pipe 1 is conducted to the hot end of the thermoelectric generator 11. At the same time, the cold end of the thermoelectric generator 11 is cooled through a number of heat dissipation fins 4 provided at the top, the heat conduction pipe 9 in the middle of the heat dissipation fins 4, and the cooling fan 3 at the top of the heat conduction pipe 9, so that a stable temperature difference is formed at both ends of the thermoelectric generator 11, and then an electromotive force is generated inside the thermoelectric generator 11, realizing the conversion of thermal energy into electrical energy. The electrical energy generated by the thermoelectric generator 11 is transmitted to the electrically connected step-up transformer 7 through the connecting wire 8 on one side. According to the principle of electromagnetic induction, the step-up transformer 7 changes the turns ratio of the windings to raise the low voltage output by the thermoelectric generator 11 to a voltage level suitable for the use of vehicle electrical equipment.

[0054] By collecting the heat generated during the operation of the new energy vehicle generator, converting it into electrical energy, and performing step-up processing on the electrical energy, it can better adapt to the voltage requirements of other vehicle electrical equipment, achieving the effective recovery and utilization of the generator waste heat and the reasonable conversion and adaptation of electrical energy. The heat pipe 1, as the starting link of heat transfer, provides a stable heat source for the thermoelectric generator 11; the thermoelectric generator 11 converts the obtained heat into electrical energy and transmits it to the step-up transformer 7; the heat dissipation system composed of the cooling fan 3, the heat dissipation fins 4, and the heat conduction pipe 9 ensures the normal temperature difference power generation conditions of the thermoelectric generator 11; the step-up transformer 7 performs adaptation processing on the electrical energy to ensure that the output electrical energy meets the requirements of vehicle electrical equipment. Each component forms a complete closed-loop system of heat collection, energy conversion, heat dissipation regulation, and electrical energy adaptation during the working process, jointly maintaining the stable operation of the device. The problem of waste of generator waste heat is solved.

[0055] Please refer to the attached Figure 1 and the attached Figure 3 - attached Figure 4 On one side of the heat pipe 1, there is a front cover 5. In the middle of the front cover 5, there is a rotating shaft 6 rotatably connected. On the other side of the heat pipe 1, there is a rear cover 2. Inside the heat pipe 1, there is a stator 12. On the outer wall of the stator 12, there are several stator windings 22. On one side of the stator 12 and the stator windings 22, there is a front stator winding ring 13. On the other side of the stator 12 and the stator windings 22, there is a rear stator winding ring 17.

[0056] Specifically, in the middle of the front cover 5, there is a rotating shaft 6 rotatably connected, which enables the rotating shaft 6 to perform a rotational motion with this connection point as the axis. During the operation of the generator of a new energy vehicle, the rotating shaft 6 will rotate under the drive of an external force (such as the power transmitted by the engine through the transmission system, etc.), and rely on the stable rotating connection structure at the front cover 5 to ensure the smoothness of its rotation and the stability during the rotation process, enabling it to continuously and smoothly perform circular motion.

[0057] When the rotating shaft 6 drives the rotor 27 (which cooperates with it in the subsequent structure) to rotate, according to the principle of electromagnetic induction, a rotating magnetic field will be generated around the rotor 27. This rotating magnetic field will cut the wires in the stator windings 22, causing the magnetic flux in the stator windings 22 to change, and then an induced electromotive force will be generated in the stator windings 22, realizing the process of converting mechanical energy into electrical energy. The front stator winding ring 13 and the rear stator winding ring 17 play roles in fixing, supporting the stator windings 22, and assisting in current conduction, etc., ensuring that the stator windings 22 are in a stable working state during the entire power generation process, can effectively participate in electromagnetic induction, smoothly generate an induced electromotive force, and output electrical energy.

[0058] Through the rotational connection between the front cover 5 and the rotating shaft 6, reliable support and positioning are provided for the rotation of the rotating shaft 6, so that the rotating shaft 6 will not deviate or shake during the rotation process, ensuring that it can stably transmit the externally input power to subsequent components such as the rotor 27, maintaining the normal operation of the mechanical transmission system of the entire generator, and avoiding problems such as component wear and reduced power generation efficiency caused by unstable mechanical connection. It solves the problem of poor mechanical rotation stability.

[0059] Please refer to the attached Figure 3 and the attached Figure 5 - attached Figure 6, one end of the outer wall of the rotating shaft 6 is provided with a first bearing 15, one side of the first bearing 15 is provided with an axial flow fan 14, the middle part of the axial flow fan 14 is arranged on the outer wall of the rotating shaft 6, the middle part of the outer wall of the rotating shaft 6 is provided with a rotor 27, the other end of the outer wall of the rotating shaft 6 is provided with a second bearing 19, slip rings 20 are symmetrically arranged on one side of the second bearing 19, a brush 16 is arranged on the outer wall of the slip rings 20, the middle part of the slip rings 20 is arranged on the outer wall of the rotating shaft 6, a rectifier 18 is arranged on one side of the middle part of the rotating shaft 6, a plurality of rotor windings 25 are arranged on the outer wall of the rotor 27, a plurality of exciting coils 24 are arranged on one side of the rotor windings 25, and one ends of the exciting coils 24 and the rotor windings 25 are provided with a front rotor winding ring 23, and the other ends of the exciting coils 24 and the rotor windings 25 are provided with a rear rotor winding ring 26.

[0060] Specifically, one end of the outer wall of the rotating shaft 6 is provided with a first bearing 15, and the axial flow fan 14 is installed on one side of the first bearing 15 and its middle part is nested on the outer wall of the rotating shaft 6. When the rotating shaft 6 rotates driven by external power, since the axial flow fan 14 is fixedly connected to the rotating shaft 6, the rotating shaft 6 will drive the axial flow fan 14 to rotate synchronously. During the rotation of the axial flow fan 14, its blades will exert a force on the surrounding air, causing the air to flow axially to form an air flow, thereby accelerating the air flow speed and taking away the heat inside the generator and around it to achieve the heat dissipation function.

[0061] A rotor 27 is arranged in the middle of the outer wall of the rotating shaft 6, a plurality of rotor windings 25 are arranged on the outer wall of the rotor 27, and a plurality of exciting coils 24 are arranged on one side of it. When direct current is passed through the exciting coils 24, according to the electromagnetic principle, the exciting coils 24 will generate a magnetic field, making the whole rotor 27 become an electromagnet, and the rotor windings 25 are also in this magnetic field environment. When the rotating shaft 6 drives the rotor 27 to rotate, the rotating magnetic field generated by the rotor 27 will cut the stator winding, and then an induced electromotive force will be generated in the stator winding to achieve power generation. At the same time, one ends of the exciting coils 24 and the rotor windings 25 are connected, fixed and assist current conduction through the front rotor winding ring 23, and the other ends play the same role through the rear rotor winding ring 26, ensuring the normal circulation of current in the relevant windings of the rotor 27 and the stability of the whole rotor 27 structure.

[0062] On the other end of the outer wall of the rotating shaft 6, there is a second bearing 19. On one side of the second bearing 19, there are slip rings 20 symmetrically arranged. On the outer wall of the slip rings 20, there are carbon brushes 16, and the middle part of the slip rings 20 is nested on the outer wall of the rotating shaft 6. During the rotation of the rotor 27, since the current generated by the rotor winding 25 needs to be transmitted outward, and the rotor 27 is a rotating component, the slip rings 20 will rotate together with the rotating shaft 6 and the rotor 27, while the carbon brushes 16 are fixed and in close contact with the slip rings 20. Through the sliding contact between the carbon brushes 16 and the slip rings 20, the current generated on the rotating rotor 27 is stably led out to the external circuit. In addition, on one side of the middle part of the rotating shaft 6, there is a rectifier 18. Since the current generated by the rotor winding 25 is alternating current, the rectifier 18 uses the unidirectional conductivity of electronic components such as diodes to rectify the input alternating current and convert it into direct current, so as to provide the required form of electrical energy for the electrical equipment of the vehicle subsequently.

[0063] Through the cooperation of the rotor 27, the excitation coil 24 and the stator, the effective conversion of mechanical energy into electrical energy is realized, and electrical energy is stably generated. With the help of the front rotor winding ring 23 and the rear rotor winding ring 26, the stability of the relevant windings of the rotor 27 and the smooth conduction of current are ensured, and the reliability of power generation is improved. The cooperation of the slip rings 20 and the carbon brushes 16 enables the current generated by the rotor 27 in the rotating state to be smoothly led out. After the rectifier 18 rectifies the electrical energy, the direct current that meets the requirements of the electrical equipment of the vehicle can be output, ensuring the effective generation, smooth transmission and reasonable conversion of electrical energy in the whole power generation link, and meeting the requirements of new energy vehicles for the use of electrical energy. The problem that the electrical energy generated during the rotation of the rotor 27 is difficult to be stably transmitted outward is solved.

[0064] Please refer to the appendix Figure 7 - appendix Figure 11 , a system of a new energy vehicle generator, for a waste heat recovery and utilization device of a new energy vehicle generator as claimed in the claims, comprising the following modules:

[0065] A sensor module, used for real-time monitoring of the relevant physical parameters of each key part in the waste heat recovery and utilization device of the new energy vehicle generator, providing accurate data support for the intelligent control of the whole device;

[0066] A data processing module, used for processing and analyzing various types of raw data collected by the sensor module, and converting them into effective information that can be utilized by the intelligent control system;

[0067] A control execution module, used for receiving the control instructions transmitted by the data processing module, and performing actual operations and adjustments on the relevant components in the waste heat recovery and utilization device of the new energy vehicle generator according to these instructions;

[0068] The communication and display module is used to realize data interaction between the waste heat recovery and utilization device and other vehicle systems through a communication interface; and intuitively display the working status, key data, and fault information content of the device by means of a display unit.

[0069] The sensor module includes:

[0070] The temperature sensor unit is used to monitor the temperature of the generator of a new energy vehicle and each key component of the waste heat recovery and utilization device in real time;

[0071] The current and voltage sensor unit is used to monitor the current and voltage of each relevant circuit node in the waste heat recovery and utilization device of the generator of a new energy vehicle in real time;

[0072] The rotational speed sensor unit is used to measure the rotational speed of the generator of a new energy vehicle in real time.

[0073] Specifically, the temperature sensor unit usually monitors temperature by using the principle that different substances exhibit specific physical property changes with temperature changes. For example, the common thermocouple temperature sensor is based on the Seebeck effect. When two different conductors form a closed loop, if the temperatures of the two contact points are different, a thermoelectric potential will be generated in the loop, and the magnitude of the thermoelectric potential has a corresponding relationship with the temperature difference. By measuring the thermoelectric potential, the temperature of the contact point can be deduced; the resistance temperature sensor is based on the characteristic that the resistance value of a metal or semiconductor material changes with temperature. By detecting the change in resistance and using a calibrated conversion relationship, the corresponding temperature value can be obtained. Temperature sensors are installed on each key component of the generator of a new energy vehicle and the waste heat recovery and utilization device (such as parts like heat pipe 1, thermoelectric generator 11, stator 12, rotor 27, etc.). The sensor is in close contact with the component or in a position where it can accurately sense its temperature, and the temperature information of the component is obtained in real time and converted into an electrical signal for transmission to the subsequent data processing module.

[0074] Through the accurate and real-time monitoring of the temperatures of the key components of the generator of a new energy vehicle and the waste heat recovery and utilization device, it is possible to timely and accurately master the temperature values of each component under different working conditions (such as when the vehicle is accelerating, decelerating, driving at a constant speed, etc.), providing reliable data support for subsequent judgment of the working status of the components and whether there is an overheating risk, and facilitating the effective regulation of heat pipe 1 of the entire device. It solves the problem of being unable to intuitively understand the temperature conditions of each key component.

[0075] The data processing module includes:

[0076] The signal conditioning circuit unit is used to preprocess various raw signals collected by the sensors;

[0077] A data acquisition unit, which is used to collect various analog signals processed by a signal conditioning circuit at a specific sampling frequency and convert them into digital signals;

[0078] A microprocessor unit, which is used to perform operations and logical judgments on the collected digital signal data and generate corresponding control instructions according to preset rules.

[0079] Specifically, the signal conditioning circuit unit mainly preprocesses various raw signals collected by sensors based on the basic principles of electronic circuits. For signal amplification, it uses amplifier chips (such as operational amplifiers, etc.), and according to the gain characteristics of the amplifier, by reasonably setting circuit parameters, it amplifies the weak electrical signals transmitted by the sensors. For example, for the millivolt-level weak voltage signal output by a temperature sensor, it is amplified by the amplifier according to the set amplification multiple to make it reach the voltage amplitude range that the subsequent circuit can accurately process. In signal filtering, a filtering circuit (such as a low-pass filter, a high-pass filter, a band-pass filter, etc.) is used, and it is realized according to the impedance characteristic differences of components such as capacitors and inductors for signals of different frequencies. For example, if it is necessary to filter out the high-frequency noise interference mixed in the sensor signal, a low-pass filter is adopted, allowing the useful low-frequency signals to pass through smoothly, while the high-frequency noise is bypassed to the ground due to the characteristics such as the capacitive reactance of the capacitor decreasing with the increase of frequency, so as to achieve the purpose of removing noise and purifying the signal. For signal shaping, through circuit components such as comparators and Schmidt triggers, according to their comparison and trigger flip characteristics of the input signal level, irregular waveforms (such as waveform distortions caused by the sensor being interfered by the outside world, etc.) are shaped into standard waveforms such as square waves and pulse waves that are regular and meet the recognition and processing requirements of the subsequent circuit. These different preprocessing operations are comprehensively used in the signal conditioning circuit unit according to the specific conditions of the raw signals collected by the sensors to improve the signal quality.

[0080] The data acquisition unit collects and converts various analog signals processed by the signal conditioning circuit into digital signals at a specific sampling frequency using an analog-to-digital converter (ADC). The core analog-to-digital conversion process is based on the sampling theorem, that is, the sampling frequency should be greater than or equal to twice the highest frequency of the analog signal to be sampled, to ensure that the information contained in the analog signal can be completely restored. In actual operation, the clock circuit inside the data acquisition unit provides a stable clock pulse to control the sampling time interval, and samples the analog signal periodically according to the set sampling frequency to obtain a series of discrete analog signal values. Then, through the quantization and encoding mechanism inside the ADC, these discrete analog signal values are divided into different quantization levels according to their amplitude ranges and corresponding digital encodings are assigned, and finally the analog signal is converted into a digital signal output, enabling it to be recognized and processed by digital circuit devices such as microprocessors. For example, a 12-bit ADC can divide the input analog voltage signal into 2 to the 12th power (i.e., 4096) quantization levels, and convert the analog voltage with different amplitudes into digital encodings between 0 and 4096 for representation.

[0081] The microprocessor unit mainly relies on the collaborative work of its internal components such as the arithmetic logic unit (ALU), registers, control unit, and storage unit to perform operations and logical judgments on the collected digital signal data, and generate corresponding control instructions according to preset rules. The arithmetic logic unit (ALU) can perform basic arithmetic operations such as addition, subtraction, multiplication, and division, as well as logical operations such as AND, OR, and NOT. For example, compare the digital temperature value transmitted by the temperature sensor with the upper limit value of the preset normal temperature range to determine whether the current temperature exceeds the normal range. Registers are used to temporarily store data and instructions, facilitating quick reading and writing of data during the operation and processing, ensuring the efficiency of data processing.

[0082] Through the optimization processing of the original signals collected by the sensors, the signals that may originally be weak, with noise interference, and irregular waveforms are transformed into signals with appropriate amplitudes, purity, and regular waveforms, laying a good foundation for subsequent data acquisition and more in-depth data analysis and processing, improving the reliability and accuracy of the signals in the entire data processing process, and ensuring that the subsequent modules can operate effectively based on high-quality signals. Solved the problem that the original signals collected by the sensors are vulnerable to external environmental interference.

[0083] The control execution module includes:

[0084] The heat dissipation control unit is used to accurately adjust the rotation speeds of the heat dissipation fan 3 and the axial flow fan 14 in the waste heat recovery and utilization device for new energy vehicle generators according to the control instructions of the system;

[0085] An energy conversion regulation unit is used to regulate the relevant links involving electric energy conversion in the waste heat recovery and utilization device of a new energy vehicle generator according to the control instructions of the system.

[0086] Specifically, the heat dissipation control unit accurately regulates the rotation speeds of heat dissipation components such as the radiator fan 3 and the axial flow fan 14 in the waste heat recovery and utilization device for a new energy vehicle generator according to the system control instructions transmitted from the microprocessor unit. Its working principle is based on electronic speed regulation technology, and a common method is to use the pulse width modulation (PWM) control method. For heat dissipation components such as the radiator fan 3 and the axial flow fan 14 driven by DC motors, PWM control adjusts the average voltage of the motor by changing the duty cycle of the pulse signal applied across the motor terminals, thereby controlling the rotation speed of the motor. For example, when the microprocessor determines that the temperatures of the components in the device have increased and stronger heat dissipation is required, it sends corresponding control instructions to the heat dissipation control unit, and the heat dissipation control unit increases the duty cycle of the PWM signal, causing the average voltage applied across the motor of the radiator fan 3 or the axial flow fan 14 to increase, and the motor rotation speed to accelerate, thus enhancing the air flow speed and taking away more heat; conversely, if it is detected that the temperature is appropriate and the heat dissipation intensity needs to be reduced, the duty cycle of the PWM signal will be decreased, the average voltage of the motor will be reduced, and the rotation speed will slow down accordingly.

[0087] The energy conversion regulation unit regulates the relevant links involving electric energy conversion in the waste heat recovery and utilization device of a new energy vehicle generator according to the control instructions of the system. In the electric energy conversion link from the thermoelectric generator 11 to the step-up transformer 7, the energy conversion regulation unit adjusts the turns ratio of the step-up transformer 7 according to the control instructions. The turns ratio of the step-up transformer 7 is related to the number of turns of the primary and secondary coils, and its working principle is based on the mutual inductance phenomenon in electromagnetic induction. When the turns ratio of the primary and secondary coils is changed, the proportional relationship between the input and output voltages can be changed. For example, if it is monitored by a sensor that the output voltage of the thermoelectric generator 11 is relatively low, and the vehicle electrical equipment has certain voltage requirements, after receiving the control instructions, the energy conversion regulation unit will adjust the turns ratio of the step-up transformer 7, increase the number of turns of the secondary coil or decrease the number of turns of the primary coil, so that the output voltage rises to an appropriate value to meet the power supply requirements of subsequent electrical equipment.

[0088] Through the accurate and dynamic regulation of the heat dissipation intensity of the new energy vehicle generator and the entire waste heat recovery and utilization device, the rotation speeds of the radiator fan 3 and the axial flow fan 14 can be flexibly adjusted according to the actual temperature requirements of each component under different working conditions of the device (such as different heat generation situations caused by changes in vehicle driving speed and generator power generation). This ensures that each component always operates within an appropriate temperature range, avoiding problems such as overheating damage and performance degradation of components caused by insufficient heat dissipation, while also preventing energy waste caused by excessive heat dissipation, improving the stability of the entire device operation and energy utilization efficiency. It solves the problem that the new energy vehicle generator cannot regulate the heat dissipation components.

[0089] The communication and display module includes:

[0090] A communication interface unit for implementing data communication between the waste heat recovery and utilization device of a new energy vehicle generator and other systems inside the vehicle and relevant external platforms;

[0091] A display unit for visually presenting the working status, key parameters, and fault information content of the waste heat recovery and utilization device of a new energy vehicle generator.

[0092] Specifically, the communication interface unit mainly uses a variety of communication protocols and corresponding hardware circuits to implement data communication between the waste heat recovery and utilization device of a new energy vehicle generator and other systems inside the vehicle and relevant external platforms. When communicating with other systems inside the vehicle (such as the vehicle control unit, battery management system, etc.), communication protocols such as the CAN bus (Controller Area Network) are often used. The CAN bus is based on the differential signal transmission principle and transmits data through two signal lines (CAN_H and CAN_L). Utilizing the strong anti-interference ability of differential signals, it ensures accurate and stable data transmission in the complex vehicle electrical environment. The CAN controller in the communication interface unit is responsible for processing the data to be sent according to the CAN protocol, such as packing and encoding, generating a message format that conforms to the protocol specification, and then sending the electrical signal to the bus through the CAN transceiver. At the same time, it can also receive messages sent by other systems on the bus, perform decoding, verification, etc. operations, and restore the original data for use by relevant modules of this device.

[0093] The display unit generally presents the working status, key parameters, and fault information content of the waste heat recovery device for new energy vehicle generators intuitively based on display technologies such as liquid crystal display (LCD) and light-emitting diode display (LED). Taking liquid crystal display (LCD) as an example, it utilizes the arrangement change characteristics of liquid crystal molecules under the action of an electric field to control the transmission and blocking of light, thereby displaying different images or text information. The liquid crystal display screen in the display unit, through a matrix structure composed of row and column electrodes, applies an appropriate voltage to the liquid crystal cells corresponding to each pixel point under the control of the driving circuit, changes the orientation of the liquid crystal molecules, and enables the light emitted by the backlight source to pass through the liquid crystal layer according to the set mode, forming visual content. For example, to display the real-time temperature value of the generator, the driving circuit controls the arrangement of the liquid crystal molecules of the corresponding pixel points according to the received temperature data, so that the corresponding numbers and units are displayed. For the light-emitting diode display (LED) technology, it relies on the characteristic that the light-emitting diodes made of semiconductor materials can emit light when a forward current passes through for display. By forming an array of multiple LEDs, also under the control of the driving circuit, the corresponding LED lamp beads are lit according to the content to be displayed, and combined into information such as text, graphics, or numbers for presentation. For example, when displaying fault information, the driving circuit can cause the LED lamp beads representing different fault types to light up to visually remind the operator.

[0094] Through data interaction and collaborative work between the device and various internal vehicle systems as well as with external relevant platforms. Inside the vehicle, it can share information with the vehicle controller, battery management system, etc. For example, it transmits parameters such as the real-time power generation power and temperature of the waste heat recovery device for the generator to the vehicle controller, enabling it to make more reasonable control decisions by comprehensively considering the overall energy management and operating status of the vehicle; at the same time, it can also receive instructions or information from other systems to ensure the coordinated operation of each system. When communicating with external relevant platforms, it is convenient for vehicle manufacturers, etc. to remotely monitor the operation of the device, and timely obtain information such as fault alarm information and key performance parameters, which is convenient for remote maintenance, data analysis, and continuous optimization of product performance, improving the manageability of the entire device and the ability to ensure vehicle operation. It solves the problem of being unable to intuitively obtain its operating status and key information.

[0095] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste heat recovery device for a new energy vehicle generator, comprising a heat pipe (1), characterized in that: The heat pipe (1) is provided with a steam chamber (21) inside, the inner wall of the steam chamber (21) of the heat pipe (1) is provided with a tube core, the outer wall of the heat pipe (1) is provided with a plurality of temperature difference power generation sheets (11), the top of the temperature difference power generation sheet (11) is provided with a heat conduction base (10), the top of the heat conduction base (10) is provided with a plurality of heat dissipation fins (4), the middle of the heat dissipation fins (4) is provided with a plurality of heat conduction pipes (9), the top of the heat conduction pipes (9) is provided with a heat dissipation fan (3), a connecting wire (8) is provided on one side of the temperature difference power generation sheet (11), one end of the connecting wire (8) is electrically connected to a step-up transformer (7), and one side of the step-up transformer (7) is provided on the outer wall of the heat pipe (1).

2. A waste heat recovery and utilization device for a new energy vehicle generator according to claim 1, characterized in that: A front cover (5) is provided on one side of the heat pipe (1), a rotating shaft (6) is rotatably connected to the middle of the front cover (5), a rear cover (2) is provided on the other side of the heat pipe (1), a stator (12) is provided on the inner wall of the heat pipe (1), a plurality of stator windings (22) are provided on the outer wall of the stator (12), a front stator winding ring (13) is provided on one side of the stator (12) and the stator winding (22), and a rear stator winding ring (17) is provided on the other side of the stator (12) and the stator winding (22).

3. A waste heat recovery and utilization device for a new energy vehicle generator according to claim 2, characterized in that: A bearing 1 (15) is arranged at one end of the outer wall of the rotating shaft (6), an axial flow fan (14) is arranged on one side of the bearing 1 (15), the middle part of the axial flow fan (14) is arranged on the outer wall of the rotating shaft (6), a rotor (27) is arranged in the middle part of the outer wall of the rotating shaft (6), a bearing 2 (19) is arranged at the other end of the outer wall of the rotating shaft (6), a collector ring (20) is symmetrically arranged on one side of the bearing 2 (19), a brush (16) is arranged on the outer wall of the collector ring (20), the middle part of the collector ring (20) is arranged on the outer wall of the rotating shaft (6), and a rectifier (18) is arranged on one side of the middle part of the rotating shaft (6).

4. A waste heat recovery and utilization device for a new energy vehicle generator according to claim 3, characterized in that: The outer wall of the rotor (27) is provided with a plurality of rotor windings (25), one side of the rotor winding (25) is provided with a plurality of excitation coils (24), one end of the excitation coil (24) and the rotor winding (25) is provided with a front rotor winding ring (23), and the other end of the excitation coil (24) and the rotor winding (25) is provided with a rear rotor winding ring (26).

5. A system for a new energy vehicle generator, comprising a waste heat recovery device for a new energy vehicle generator according to any one of claims 1 to 4, characterized in that: Also includes the following modules: The sensor module is used to monitor the relevant physical parameters of key parts of the waste heat recovery device for new energy vehicle generators in real time, providing accurate data support for the intelligent control of the entire device; The data processing module is used to process and analyze various raw data collected by the sensor module and convert them into effective information that can be used by the intelligent control system; A control execution module is used to receive control instructions from the data processing module, and to actually operate and adjust relevant components in the waste heat recovery and utilization device for the generator of new energy vehicles according to these instructions; The communication and display module is used to realize data exchange between the waste heat recovery device and other vehicle systems through the communication interface; and intuitively display the working status, key data and fault information content of the device with the help of the display unit.

6. A new energy vehicle generator system according to claim 5, characterized in that: The sensor module comprises: Temperature sensor unit, used to monitor the temperature of key components of new energy vehicle generators and waste heat recovery devices in real time; The current and voltage sensor unit is used to monitor the current and voltage of each relevant circuit node in the waste heat recovery device of the new energy vehicle generator in real time; The speed sensor unit is used to measure the speed of the generator of new energy vehicles in real time.

7. A new energy vehicle generator system according to claim 5, characterized in that: The data processing module comprises: A signal conditioning circuit unit is used to pre-process various raw signals collected by the sensor; The data acquisition unit is used to collect various analog signals processed by the signal conditioning circuit according to a specific sampling frequency and convert them into digital signals; The microprocessor unit is used to perform operations and logical judgments on the collected digital signal data, and generate corresponding control instructions according to preset rules.

8. The system of a new energy vehicle generator according to claim 5, characterized in that: The control execution module includes: A heat dissipation control unit, used for accurately adjusting the rotation speed of a heat dissipation fan (3) and an axial flow fan (14) in a waste heat recovery device for a new energy vehicle generator according to a control instruction of the system; The energy conversion regulating unit is used to regulate the relevant links involving electric energy conversion in the waste heat recovery and utilization device of the new energy vehicle generator according to the control instructions of the system.

9. A new energy vehicle generator system according to claim 5, characterized in that: The communication and display module comprises: The communication interface unit is used to realize data communication between the waste heat recovery device of the new energy vehicle generator and other systems inside the vehicle and external related platforms; The display unit is used to intuitively present the working status, key parameters and fault information content of the new energy vehicle generator waste heat recovery device.

Images