A heat recovery device unit and a heat recovery device

Abstract

The application provides a recycling heating device unit and a recycling heating device, which comprise an inner cylinder and an outer cylinder, a communication passage is arranged between the inner cylinder and the outer cylinder, and the outer cylinder is used for being communicated with a heating device; wherein the outer cylinder and the inner cylinder are filled with a heat transfer medium, a piston is arranged in the inner cylinder, a top end of the piston is connected with a piston rod, the piston rod is used for being connected with an automobile frame, the outer cylinder is used for being connected with an automobile axle, in the case of automobile vibration, the piston moves up and down relative to the inner cylinder, and the heat transfer medium is circularly pressed into the outer cylinder; a friction plate is arranged in the outer cylinder, in the case that the heat transfer medium flows in the outer cylinder, the friction plate generates friction with the heat transfer medium, so as to heat the heat transfer medium, and the heated heat transfer medium is used for being delivered to the heating device, so as to convert mechanical energy generated by automobile vibration into internal energy, through the device, mechanical energy generated by vibration in vehicle driving can be converted into internal energy, heating is timely, and the driving experience of a user is improved.

Description

Technical Field

[0001] This application relates to the field of energy recovery for electric vehicles, and in particular to a heat recovery device unit and a heat recovery device. Background Technology

[0002] Electric vehicles (EVs) boast advantages such as zero emissions, environmental friendliness, simple structure, low noise, and low maintenance costs, making them the most promising vehicles in the new energy vehicle sector. With the increasing demand for urban commuting and transportation, my country has maintained its position as the world's largest seller of new energy vehicles, primarily pure electric vehicles, for many years, contributing to the goals of "low-carbon travel and energy conservation and emission reduction." The usage of EVs is bound to increase year by year. Since EVs are powered solely by electric motors, the driving range of their batteries has become one of the most crucial factors restricting their development.

[0003] In cold environments, when drivers require heating, electric vehicles must continue to convert electrical energy into heat to provide warmth inside the vehicle. This heating method is extremely energy-intensive, which is undoubtedly a further blow to electric vehicles, which already have limited range. Running out of power on the road puts drivers in a difficult position. Especially in northern winters, lower temperatures reduce battery efficiency, and drivers, in an effort to save electricity, may not turn on the heater, leading to frozen hands and feet, making driving impossible, and even causing the vehicle's interior to freeze. Therefore, a temperature control system is an indispensable part of electric vehicles, not only providing a comfortable driving environment for the driver but also ensuring the vehicle's normal and efficient operation.

[0004] To achieve greater driving range, the development of energy recovery technology has become an inevitable trend in the development of power batteries. Researchers have already developed energy recovery devices, mainly in two ways: one utilizes the braking energy of a car decelerating by applying the brakes, converting it into electrical energy for storage and recovery into the battery; the other utilizes the vibration energy generated when the car travels on uneven roads, converting it into electrical energy. Current energy recovery devices convert vibration energy into electrical energy for the power battery, directly charging it, thus achieving energy recovery. However, when the driver needs heating, the electrical energy must be converted back into heat energy, which is difficult to provide timely heating, has a complex structure, reduces efficiency, and requires frequent heating of the resistance wire, shortening the lifespan of the temperature control system. Summary of the Invention

[0005] To address the aforementioned problems, the first aspect of this invention provides a heat recovery device unit that can convert the mechanical energy generated by vibrations during vehicle operation into internal energy, which can then be directly applied to the heating device, effectively solving the problem of insufficient power and range anxiety in electric vehicles during winter.

[0006] The technical solution of this invention is:

[0007] A heat recovery device unit includes: an inner cylinder and an outer cylinder, wherein the inner cylinder and the outer cylinder have a communicating channel, and the outer cylinder is used to communicate with a heat supply device; wherein...

[0008] The outer cylinder and the inner cylinder are filled with a heat transfer medium. A piston is installed in the inner cylinder. The top of the piston is connected to a piston rod. The piston rod is used to connect to the car frame. The outer cylinder is used to connect to the car axle. When the car vibrates, the piston moves up and down relative to the inner cylinder, circulating the heat transfer medium into the outer cylinder.

[0009] The outer cylinder is equipped with friction plates. When the heat transfer medium flows inside the outer cylinder, the friction plates rub against the heat transfer medium to heat the heat transfer medium. The heated heat transfer medium is then transported to the heating device to convert the mechanical energy generated by the vehicle vibration into internal energy.

[0010] As one of the preferred embodiments, the friction pad extends spirally along the height direction of the outer cylinder.

[0011] As one of the preferred solutions, the inner cylinder has a liquid passage hole on its wall, which connects the inner cylinder and the outer cylinder.

[0012] As one preferred embodiment, the outer cylinder and the inner cylinder are connected by a compression valve. When the piston moves downward relative to the inner cylinder, the compression valve opens; when the piston moves upward relative to the inner cylinder, the compression valve closes.

[0013] As one preferred embodiment, the device further includes an upper bushing and a lower bushing, the upper bushing being welded to the piston rod for connection to the vehicle frame, and the lower bushing being welded to the bottom wall of the outer cylinder for connection to the vehicle axle.

[0014] The second aspect of the present invention also provides a heat recovery device that can convert the mechanical energy generated by the vibration of a vehicle during driving into internal energy, and use the heat recovery device to heat the interior of the vehicle, effectively solving the problem of insufficient power and range anxiety of electric vehicles in winter.

[0015] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0016] A heat recovery device includes a power unit, a control switch, and an evaporator. The power unit is connected to the control switch, the control switch is connected to the evaporator, and the evaporator is connected to the heat recovery device unit as described above.

[0017] As one of the preferred solutions, the outer cylinder is provided with a liquid outlet, which is connected to the inlet of the evaporator. The heated heat transfer medium is transported into the evaporator through the liquid outlet to exchange heat with the air inside the evaporator.

[0018] As one of the preferred solutions, the inner cylinder is provided with a liquid inlet, which is connected to the outlet of the evaporator. The heat transfer medium after heat exchange flows back into the inner cylinder through the liquid inlet to realize the circulation of the heat transfer medium.

[0019] As one preferred embodiment, an expansion valve is provided at the liquid inlet. When the piston moves downward relative to the inner cylinder, the expansion valve is closed, and when the piston moves upward relative to the inner cylinder, the expansion valve is opened.

[0020] A third aspect of the present invention also provides a vehicle equipped with the heat recovery device unit as described above, or equipped with the heat recovery device as described above.

[0021] Compared with the prior art, this application has the following advantages:

[0022] This invention provides a heat recovery device unit, comprising an inner cylinder and an outer cylinder nested together, with a communication channel between them. The outer cylinder is used to communicate with a heat supply device. Both the inner and outer cylinders are filled with a heat transfer medium. A piston is installed inside the inner cylinder, with a piston rod connected to its top. The piston rod is used to connect to a vehicle frame, and the outer cylinder is used to connect to a vehicle axle. When the vehicle vibrates, the piston moves up and down relative to the inner cylinder, circulating the heat transfer medium into the outer cylinder. Friction plates are installed inside the outer cylinder. When the heat transfer medium flows within the outer cylinder, the friction plates generate friction with the heat transfer medium to heat it. The heated heat transfer medium is then transported to the heat supply device to convert the mechanical energy generated by the vehicle vibration into internal energy.

[0023] By adopting the technical solution of this application, the heat transfer medium first fills the space between the inner cylinder and the outer cylinder, and the relative positions of the inner cylinder and the outer cylinder remain unchanged. The position of the piston assembly connected to the car frame remains unchanged. When the vehicle is moving, the wheels will bounce up and down. The outer cylinder located on the car axle drives the inner cylinder to move closer or further away from the car frame at the same time, thereby causing the piston located in the inner cylinder to move up and down relative to the inner cylinder. When the piston moves downward, the piston compresses the heat transfer medium into the outer cylinder. Under the action of pressure, the heat transfer medium flows upward along the height direction of the outer cylinder at a certain rate, and generates heat by friction with the friction plate in the outer cylinder, raising the temperature of the heat transfer medium. The heated heat transfer medium enters the heating device for direct heating. This method directly converts the mechanical energy generated by vehicle vibration into internal energy to heat the vehicle interior. On the one hand, it recovers the energy generated by vehicle vibration, saving electricity consumption of electric vehicles, extending the driving range of electric vehicles, and improving the driving experience for customers. On the other hand, compared with traditional electric heating methods, it eliminates the need to heat the heating resistance wire to heat the vehicle interior. The recovered internal energy is directly used to heat the vehicle interior through the heating device, saving the time required for heating the resistance wire. This provides timely heating, improves the user's driving experience, and saves on the use of consumable resistance wire, reducing vehicle maintenance costs.

[0024] The aforementioned heat recovery device and the vehicle have the same advantages over the prior art as the aforementioned heat recovery device unit, and will not be repeated here. Attached Figure Description

[0025] To more clearly illustrate the technical solution of this application, the drawings used in the description of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is an overall structural diagram of the heat recovery device unit described in one embodiment of this application;

[0027] Figure 2 This is an internal cross-sectional view of the heat recovery device unit according to another embodiment of this application;

[0028] Figure 3 This is a structural schematic diagram of a heat recovery device according to another embodiment of this application.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Upper bushing; 2. Liquid outlet; 3. Liquid inlet; 4. Lower bushing; 5. Piston rod; 6. Piston; 7. Friction plate; 8. Expansion valve; 9. Compression valve; 10. Liquid passage hole; 11. Power unit; 12. Control switch; 13. Evaporator; 14. Pipeline; 15. Sensor. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] In related technologies, energy recovery devices mainly fall into two categories. One method utilizes the braking energy generated when a car decelerates by applying the brakes, converting it into electrical energy for storage and recovery into the battery. The other method utilizes the vibration energy generated when a car travels on uneven roads, converting it into electrical energy. Currently, most energy recovery devices on the market employ vibration energy recovery. To fully utilize the energy generated by vehicle vibrations, this method is typically applied to vehicle shock absorbers. By recovering the energy generated during the extension and compression strokes of the shock absorbers, this energy is directly converted from mechanical energy into electrical energy via a power generation device and stored in the battery.

[0033] Shock absorber energy recovery devices generally include a shock absorber and a generator. The generator is installed inside the shock absorber and vibrates with the vehicle's movement. The generator contains a pressure stack assembly, sensors, a generator, and connecting rods and excitation rods fixed to the shock absorber housing and in contact with both ends of the pressure stack assembly. The heating sequence of related energy recovery technologies is generally as follows: When the vehicle vibrates, the generator receives pressure from the hydraulic oil, which is transmitted to the pressure stack assembly via sensors. The pressure stack assembly deforms under pressure, generating electrical charge that is output to the generator, converting mechanical energy into electrical energy. When the heating system detects that the vehicle needs heating, the power battery heating resistance wires preheat to a certain temperature before the vehicle interior begins to heat up.

[0034] However, the energy recovery device directly charges the power battery, which is difficult to meet the current users' requirements for vehicle economy, especially for electric vehicles that are often in cold environments. When the driver needs heating, the electrical energy needs to be converted back into heat energy, which is difficult to provide timely heating, lacks convenience, has a complex structure, reduces efficiency, and requires frequent heating of the resistance wire, shortening the lifespan of the temperature control system.

[0035] In view of this, refer to Figures 1-2 As shown, Figure 1 This is an overall structural diagram of the heat recovery device unit shown in this invention; Figure 2This is an internal cross-sectional view of the heat recovery device unit shown in this invention. This application provides a heat recovery device unit, including: an inner cylinder and an outer cylinder, with a communication channel between the inner and outer cylinders, the outer cylinder being used to communicate with a heating device; wherein, the outer and inner cylinders are filled with a heat transfer medium, a piston 6 is disposed inside the inner cylinder, the top end of the piston 6 is connected to a piston rod 5, the piston rod 5 is used to connect to a vehicle frame, and the outer cylinder is used to connect to a vehicle axle; when the vehicle vibrates, the piston 6 moves up and down relative to the inner cylinder, circulating the heat transfer medium into the outer cylinder;

[0036] Friction plates 7 are installed inside the outer cylinder. When the heat transfer medium flows inside the outer cylinder, the friction plates 7 rub against the heat transfer medium to heat the heat transfer medium. The heated heat transfer medium is then transported to the heating device to convert the mechanical energy generated by the vehicle vibration into internal energy.

[0037] Specifically, the inner and outer cylinders are nested together, forming a closed space relative to the external environment. The inner and outer cylinders are typically cylindrical cavities, but other shapes are also possible. The inner cylinder can be completely embedded within the outer cylinder, forming an elliptical ring space, or its top can be flush with the outer cylinder, forming a barrel-shaped space. The inner and outer cylinders are interconnected through injection channels and flow channels, which are staggered to accommodate changes in the flow direction and mode of the heat transfer medium under different operating conditions. The injection channels are used when the vehicle is not vibrating (e.g., when the vehicle is stationary or traveling on a smooth road), allowing the heat transfer medium to slowly fill the inner cylinder from the outer cylinder to both. When the vehicle vibrates, this ensures that the heat transfer medium flows with sufficient filling. When the vehicle is operating under vibration, the heat transfer medium flows rapidly from the inner cylinder to the outer cylinder under the pressure of the piston 6. After generating heat through friction with the friction plate 7 in the outer cylinder, it is input into the heating device to directly heat the vehicle interior.

[0038] In this embodiment, both the injection channel and the flow channel can be located at the bottom between the inner and outer cylinders, so that the oil can flow between the inner and outer cylinders immediately under both operating conditions.

[0039] For example, the injection channel can be a liquid passage hole 10 formed on the wall of the inner cylinder, allowing the heat transfer medium to be slowly injected into the inner cylinder through the liquid passage hole 10, or a liquid passage pipe can be provided to connect the inner and outer cylinders. Preferably, the injection channel is a liquid passage hole 10 formed on the wall of the inner cylinder, and the liquid passage hole 10 connects the inner cylinder and the outer cylinder. The provision of the liquid passage hole 10 ensures that there are no unnecessary obstructions in the space formed between the inner and outer cylinders, allowing the heat transfer medium to flow smoothly in the outer cylinder for transmission to the heating device.

[0040] Based on the working principle of the heat recovery device unit proposed in this invention, the specific structure, features, and functions of the liquid flow channel of this invention are described in detail below.

[0041] Specifically, a piston assembly 6 is inserted into the inner cylinder. The piston assembly 6 includes an integrally formed piston 6 and a piston rod 5. One end of the piston rod 5, connected to the piston 6, is inserted into the inner cylinder, while the other end extends out of the inner cylinder for connection to the vehicle frame. The outer cylinder is used to connect to the axle, thus establishing a connection between the wheels and the vehicle frame. When the vehicle travels on uneven roads or brakes, the wheels bounce up and down, while the position between the vehicle frame and the piston rod 5 remains unchanged. Therefore, when the wheels bounce upwards, the outer and inner cylinders move upwards, and the piston 6 moves downwards relative to the inner cylinder. Conversely, when the wheels bounce downwards, the piston 6 moves upwards, creating downward compression pressure and upward suction. When pressure is applied, the heat transfer medium flows rapidly into the outer cylinder through the liquid flow channel; when suction is applied, the heat transfer medium flows rapidly into the inner cylinder through the liquid inlet 3.

[0042] In this embodiment, the shape and size of the piston 6 are matched with the shape and size of the inner cylinder to divide the inner cylinder into upper and lower cavities. The piston rod 5 drives the piston 6 to move in the upper cavity to prevent the heat transfer medium from leaking into the upper cavity, so as to ensure that the piston 6 has sufficient pressure and suction to circulate and fill the heat transfer medium in the lower cavity.

[0043] As a specific explanation of this embodiment, the heat transfer medium supply device can simultaneously connect the outer cylinder and the inner cylinder, or two heat transfer medium supply devices can be provided, each connecting the outer cylinder and the inner cylinder respectively. The outer cylinder is connected to the heat transfer medium supply device so that, when the vehicle is not vibrating, the heat transfer medium is first input into the outer cylinder and slowly fills the inner cylinder through the liquid inlet 10. The inner cylinder is connected to the heat transfer medium supply device so that, when the vehicle is vibrating, the inner cylinder is quickly filled through the liquid inlet 3. It can be understood that, in this embodiment of the invention, when the vehicle vibrates, the heat transfer medium is input from the heat transfer medium supply device into the inner cylinder and then into the outer cylinder. The outer cylinder is always kept full of heat transfer medium; therefore, the heat transfer medium is initially injected into the outer cylinder through the liquid inlet 10.

[0044] It is understood that the inlet 3 is connected to a pipe 14 leading out of the inner cylinder. The pipe 14 is connected to a heat transfer medium supply device to rapidly input a large amount of heat transfer medium into the inner cylinder under vehicle vibration conditions and to force the heat transfer medium into the outer cylinder. The heat transfer medium supply device stores the heat transfer medium. When the heat transfer medium is oil, the heat transfer medium supply device is an oil tank; when the heat transfer medium is water, the heat transfer medium supply device is a water tank. The heating device in this embodiment of the invention is an in-vehicle heating system, mainly the evaporator 13 of the air conditioner. The heated heat transfer medium is input into the evaporator 13 to exchange heat with the air and directly heat the vehicle interior.

[0045] In one feasible solution, the inlet 3 can be directly connected to the outlet pipe 14 of the heating system, so that the heat transfer medium after heat exchange flows back from the heating device to the inner cylinder, so that a large amount of heat transfer medium can be quickly input under the condition of vehicle vibration, so as to circulate the heat transfer medium into the outer cylinder.

[0046] Friction plates 7 are installed in the outer cylinder to heat the heat transfer medium. When the heat transfer medium is pressed into the outer cylinder, the heat transfer medium and the friction plates 7 generate heat through friction. The friction plates 7 are made of cast iron, which heats the heat transfer medium, and the high-temperature heat transfer medium flows into the heating device. Optionally, the friction plates 7 can also be made of iron mixed with silicon or other non-metallic materials through high-temperature casting to increase the coefficient of friction.

[0047] To further heat the heat transfer medium, oil is preferred. Oil has a higher specific heat capacity than water, a high frictional heat generation temperature, and does not corrode the cylinder wall. It also does not vaporize at high temperatures, preventing the formation of bubbles and abnormal noises, thus avoiding the need for additional airtight devices during vaporization and reducing the complexity of the heat recovery unit. Of course, in a more preferred example, based on the same principle, a heat transfer medium with a higher specific heat capacity and vaporization temperature than traditional oil can be used, such as commercially available hydraulic oil specifically designed for vehicles.

[0048] To further enhance the oil temperature and improve the vehicle's heating effect, in a preferred embodiment, the friction plate 7 extends spirally along the height of the outer cylinder. In this embodiment, the fluid flow channel is located at the bottom of the inner cylinder, and the spiral friction plate 7 spirals upward within the space formed by the inner and outer cylinders. As the oil flows from bottom to top within the outer cylinder, the friction area between the spiral friction plate 7 and the oil is maximized within the height range of the outer cylinder. The spiral flow of the oil increases the friction efficiency with the spiral friction plate 7. During one flow cycle, the oil temperature can reach 120°C, resulting in high heating efficiency and fast heating speed, thus improving the air conditioning heating efficiency.

[0049] Thus, by adopting the technical solution of this application, the heat transfer medium first fills the space between the inner and outer cylinders, while the relative positions of the inner and outer cylinders remain unchanged. The position of the piston 6 assembly connected to the vehicle frame also remains unchanged. When the vehicle is moving, the wheels bounce up and down, causing the outer cylinder located on the vehicle axle to move the inner cylinder closer to or further away from the vehicle frame. This causes the piston 6 located inside the inner cylinder to move up and down relative to the inner cylinder. When the piston 6 moves downward, it compresses the heat transfer medium into the outer cylinder. Under pressure, the heat transfer medium flows upward along the height direction of the outer cylinder at a certain rate, generating heat through friction with the friction plates 7 inside the outer cylinder. The heat transfer medium is heated, and the heated medium enters the heating device to directly provide heat. In this way, the mechanical energy generated by vehicle vibration is directly converted into internal energy to heat the vehicle interior. On the one hand, it recovers the energy generated by vehicle vibration, saves electricity consumption of electric vehicles, extends the driving range of electric vehicles, and improves the driving experience for customers. On the other hand, compared with traditional electric heating methods, there is no need to heat the resistance wire to heat the vehicle interior. The recovered internal energy is directly used to heat the vehicle interior through the heating device, saving the time required for heating the resistance wire. The heating is timely, improves the user's driving experience, and saves the use of consumable resistance wire, reducing vehicle maintenance costs.

[0050] This embodiment illustrates the working principle, characteristics, and structure of the liquid flow channel. The outer and inner cylinders are connected by a compression valve 9. When the piston 6 moves downward relative to the inner cylinder, the compression valve 9 opens; when the piston 6 moves upward relative to the inner cylinder, the compression valve 9 closes. The compression valve 9 automatically opens and closes according to the pressure. Under pressure, the pressure in the inner cylinder is greater than the pressure in the outer cylinder, the compression valve 9 opens, and the heat transfer medium quickly enters the outer cylinder through the compression valve 9. Under suction, the pressure in the inner cylinder is less than the pressure in the outer cylinder, the compression valve 9 closes, and the oil can only enter the inner cylinder through the inlet 3. Thus, under suction, the inner and outer cylinders are separated, and the oil has sufficient suction to enter the inner cylinder.

[0051] In another feasible embodiment, the device further includes an upper bushing 1 and a lower bushing 4. The upper bushing 1 is welded to the piston rod 5 for connection to the vehicle frame, and the lower bushing 4 is welded to the bottom wall of the outer cylinder for connection to the vehicle axle. In this embodiment, since friction inevitably occurs between parts during vehicle operation, the piston rod 5 is connected to the frame via the upper bushing 1, and the outer cylinder is connected to the axle via the lower bushing 4. Both the upper bushing 1 and the lower bushing 4 contain cushioning rubber and can have bolt holes for securing them to the vehicle. The bushings reduce wear between the heat recovery unit and the vehicle and provide some vibration damping, improving driving comfort.

[0052] This application also provides a heat recovery device, such as... Figure 3As shown, Figure 3 This is a schematic diagram illustrating the structural principle of the heat recovery device of the present invention. One technical solution proposed in this application includes a heat recovery device comprising a power unit 11, a control switch 12, and an evaporator 13. The power unit 11 is connected to the control switch 12, and the control switch 12 is connected to the evaporator 13. The evaporator 13 is connected to the heat recovery device unit as described above.

[0053] Specifically, the heat recovery device of this application is applied to the heating system of an electric vehicle. The power unit 11 is the power battery of the electric vehicle. The control switch 12 is controlled by the vehicle ECU. When the control switch 12 is turned on, it is considered that the user has a heating demand. The ECU turns on the air conditioner accordingly. The evaporator 13 is the main component of the air conditioner. When the evaporator 13 is started, the evaporator 13 receives high-temperature oil from the heat recovery device unit. The blower blows air into the evaporator 13 and exchanges heat with the high-temperature oil in the evaporator 13. The high-temperature oil transfers heat to the low-temperature air, heating the air. The air is introduced into the vehicle from the air conditioner outlet, thereby providing heating for the users in the vehicle.

[0054] The evaporator 13 has an inlet and an outlet. The inlet is used to receive high-temperature oil, and the outlet is used to discharge oil that has cooled down. By opening a liquid outlet 2 in the outer cylinder, which is connected to the inlet of the evaporator 13, the heated heat transfer medium is transported into the evaporator 13 through the liquid outlet 2 to exchange heat with the air inside the evaporator 13.

[0055] In a further technical solution, the inner cylinder has a liquid inlet 3, which is connected to the outlet of the evaporator 13 via a pipe 14. The heat transfer medium after heat exchange flows back into the inner cylinder through the liquid inlet 3, thus achieving circulation of the heat transfer medium. By directly connecting the liquid inlet 3 of the inner cylinder to the outlet of the evaporator 13, oil circulation is achieved. Furthermore, the temperature of the oil after heat exchange is typically higher than the normal temperature of the oil. By re-entering the outer cylinder for frictional heat generation, it can provide sustainable and efficient heating for the vehicle interior, increasing user satisfaction.

[0056] To further maintain sufficient suction and pressure for the oil to circulate between the inner and outer cylinders, an expansion valve 8 is installed at the inlet 3. When the piston 6 moves downward relative to the inner cylinder, the expansion valve 8 closes; when the piston 6 moves upward relative to the inner cylinder, the expansion valve 8 opens.

[0057] The working principle of this invention is as follows:

[0058] In one working cycle, the power unit 11 provides electrical energy to the sensor 15 and the control switch 12. The sensor 15 detects the ambient temperature. If there is a heating demand, the control switch is turned on. When the wheels bounce, the piston 6 moves downward, and the pressure in the inner cylinder is greater than the pressure in the outer cylinder. The valve plate of the compression valve 9 opens, and the valve plate of the extension valve 8 closes. Oil can only enter the outer cylinder from the compression valve 9. The oil spirals upward, and the heating unit converts the vehicle's mechanical energy into internal energy, increasing the temperature. The high-temperature oil flows out from the upper outlet 2 and reaches the evaporator 13 of the air conditioner. The blower heats the cab. After the oil dissipates heat through the evaporator 13, its temperature decreases and it flows back to the heating unit. When the wheels bounce downward, the piston 6 moves upward, and the pressure in the inner cylinder is less than the pressure in the outer cylinder. The valve plate of the compression valve 9 closes, and the valve plate of the extension valve 8 opens. Oil can only enter the inner cylinder from the extension valve 8 for the next compression cycle.

[0059] As a specific explanation of this embodiment, the diameter of the fluid passage 10 is much smaller than the diameter of the valve plates of the compression valve 9 and the extension valve 8 after they are opened. During the up-and-down movement of the piston 6, the oil can only flow in a very small amount between the inner and outer cylinders through the fluid passage 10, and will not affect the pressure difference between the inner and outer cylinders.

[0060] The present invention also provides a vehicle equipped with the heat recovery device unit as described above, or equipped with the heat recovery device as described above.

[0061] The above vehicle embodiment is described simply because its principle and effect are basically similar to those of the recovery heating device / recovery heating device unit embodiment. For relevant details, please refer to the description of the recovery heating device / recovery heating device unit embodiment.

[0062] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0063] Those skilled in the art will understand that embodiments of this application can be provided as methods, apparatus, or computer program products. Therefore, embodiments of this application can take the form of entirely hardware embodiments, entirely software embodiments, or embodiments combining software and hardware aspects. Furthermore, embodiments of this application can take the form of computer program products implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0064] This application describes embodiments with reference to flowchart illustrations and / or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of this application. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing terminal device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal device, generate instructions for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0065] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing terminal device to operate in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0066] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal equipment, causing a series of operational steps to be performed on the computer or other programmable terminal equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable terminal equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0067] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

[0068] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

Claims

1. A heat recovery and heating device unit, characterized in that, include: The device comprises an inner cylinder and an outer cylinder, with a communication channel between them, and the outer cylinder is used to communicate with a heating device; wherein... The outer cylinder and the inner cylinder are filled with heat transfer medium. A piston (6) is provided in the inner cylinder. The top of the piston (6) is connected to a piston rod (5). The piston rod (5) is used to connect to the car frame. The outer cylinder is used to connect to the car axle. When the car vibrates, the piston (6) moves up and down relative to the inner cylinder to circulate the heat transfer medium into the outer cylinder. The outer cylinder is provided with a friction plate (7). When the heat transfer medium flows in the outer cylinder, the friction plate (7) rubs against the heat transfer medium to heat the heat transfer medium. The heated heat transfer medium is then transported to the heating device to convert the mechanical energy generated by the vibration of the car into internal energy. The friction plate (7) extends spirally along the height direction of the outer cylinder. The inner cylinder has a liquid passage hole (10) on its wall, which connects the inner cylinder and the outer cylinder. The outer cylinder and the inner cylinder are connected by a compression valve (9). When the piston (6) moves downward relative to the inner cylinder, the compression valve (9) opens. When the piston (6) moves upward relative to the inner cylinder, the compression valve (9) closes.

2. The heat recovery device unit according to claim 1, characterized in that, The device also includes an upper bushing (1) and a lower bushing (4). The upper bushing (1) is welded to the piston rod (5) for connection to the vehicle frame, and the lower bushing (4) is welded to the bottom wall of the outer cylinder for connection to the vehicle axle.

3. A heat recovery and supply device, characterized in that, It includes a power unit (11), a control switch (12), and an evaporator (13). The power unit (11) is connected to the control switch (12), and the control switch (12) is connected to the evaporator (13). The evaporator (13) is connected to a heat recovery device unit as described in any one of claims 1-2.

4. The heat recovery device according to claim 3, characterized in that, The outer cylinder has a liquid outlet (2), which is connected to the inlet of the evaporator (13). The heated heat transfer medium is transported to the evaporator (13) through the liquid outlet (2) and exchanges heat with the air in the evaporator (13).

5. A heat recovery device according to claim 3, characterized in that, The inner cylinder is provided with a liquid inlet (3), which is connected to the outlet of the evaporator (13). The heat transfer medium after heat exchange flows back into the inner cylinder through the liquid inlet (3) to realize the circulation of the heat transfer medium.

6. The heat recovery device according to claim 5, characterized in that, An extension valve (8) is provided at the liquid inlet (3). When the piston (6) moves downward relative to the inner cylinder, the extension valve (8) is closed. When the piston (6) moves upward relative to the inner cylinder, the extension valve (8) is opened.

7. A vehicle, characterized in that, It is equipped with a heat recovery device unit as described in any one of claims 1-2, or with a heat recovery device as described in any one of claims 3-6.

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