CN219176423U

CN219176423U - Vehicle tail gas power generation device and vehicle

Info

Publication number: CN219176423U
Application number: CN202223095640.4U
Authority: CN
Inventors: 王强; 张丰; 廖银生; 赵高明; 孙宪猛
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-06-13
Anticipated expiration: 2032-11-16

Abstract

The present disclosure relates to a vehicle exhaust power generation device and a vehicle, the vehicle exhaust power generation device including: the inside of the longitudinal beam is of a hollow structure, and the tail gas exhaust pipe penetrates through the longitudinal beam and is at least partially arranged in the longitudinal beam; the thermoelectric generator is arranged on the longitudinal beam. The device does not need to provide extra space for the tail gas exhaust pipe, improves the space utilization rate, provides larger space for the arrangement of the battery packs, and ensures the whole vehicle endurance mileage.

Description

Vehicle tail gas power generation device and vehicle

Technical Field

The disclosure relates to the technical field of vehicles, in particular to a vehicle tail gas power generation device and a vehicle.

Background

At present, the blast pipe is installed on the automobile body floor of car, and the battery package is also installed on the automobile body floor, and the arrangement of blast pipe can influence the installation volume of battery package to it is limited to lead to whole car effective utilization space increase, and whole car continuation of journey mileage is limited.

Disclosure of Invention

The purpose of the present disclosure is to provide a vehicle tail gas power generation device and vehicle to solve the limited technical problem of whole car continuation of journey mileage.

To achieve the above object, a first aspect of the present disclosure provides a vehicle exhaust power generation device, comprising:

a longitudinal beam;

the tail gas exhaust pipe penetrates through the longitudinal beam and is at least partially arranged in the longitudinal beam;

the thermoelectric generator is arranged on the longitudinal beam.

Optionally, the thermoelectric generator includes:

one side of the thermoelectric generation module is connected to the longitudinal beam;

the heat dissipation enhancing structure is arranged on the other side of the thermoelectric power generation module;

the thermoelectric generation module includes a thermoelectric element adapted to be coupled to an energy storage device.

Optionally, the vehicle exhaust power generation device further comprises a shunt tube group;

a heat exchange space is arranged between the tail gas exhaust pipe part positioned in the longitudinal beam and the inner wall of the longitudinal beam, and at least one end of the heat exchange space is opened along the extending direction of the longitudinal beam;

the shunt tube group is arranged on the longitudinal beam and is communicated with the heat exchange space in the longitudinal beam so as to lead out heat in the heat exchange space.

Optionally, the shunt tube group includes:

one end of the first pipeline is connected to the longitudinal beam and is communicated with the heat exchange space in the longitudinal beam;

a heat rejection pipeline communicated with the other end of the first pipeline;

the first air extraction structure is arranged on the first pipeline.

Optionally, the shunt tube group further includes:

one end of the second pipeline is connected to the longitudinal beam and is communicated with the heat exchange space in the longitudinal beam;

the second air extraction structure is arranged on the second pipeline;

the other end of the second pipeline is communicated with the heat exhaust pipeline.

Optionally, the shunt tube group further includes:

the three-way valve is arranged on the second pipeline and is connected between the second air extraction structure and the heat extraction pipeline;

one end of the shunt heat exchange tube is connected to the three-way valve, and the other end of the shunt heat exchange tube is communicated with the heat extraction pipeline;

the split-flow heat exchange tube is suitable for heat exchange with a vehicle part to be heated.

Optionally, the first pipeline is arranged in parallel with the second pipeline.

Optionally, the first air extraction structure and the second air extraction structure are speed-adjustable vacuum pumps.

Optionally, the axis of the exhaust pipe coincides with the axis of the longitudinal beam.

Optionally, be provided with a plurality of reinforcing plate muscle in the longeron, a plurality of the one side of reinforcing plate connect in on the longeron inner wall, another side butt to on the outer wall of tail gas blast pipe.

Optionally, the longitudinal beam is a threshold beam.

In a second aspect of the present disclosure, a vehicle is provided that includes the vehicle exhaust power generation device of any of the above embodiments.

Through above-mentioned technical scheme, through setting up the tail gas blast pipe in the longeron with the emission tail gas, need not set up extra space for the tail gas blast pipe, improved space utilization, provided bigger space for the arrangement of battery package, guaranteed whole car continuation of the journey mileage. Meanwhile, the arrangement of the thermoelectric generator enables the heat of the exhaust pipe to be well utilized, and the temperature of the exhaust pipe is properly reduced.

Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:

fig. 1 is a schematic diagram of an overall structure of a vehicle exhaust power generation device according to an embodiment of the present disclosure.

Fig. 2 is a schematic diagram of airflow direction when an exhaust pipeline of a vehicle exhaust power generation device provided in an embodiment of the disclosure is overheated.

Fig. 3 is a schematic diagram of the flow direction of exhaust gas of the vehicle exhaust gas power generation device for heating a component to be heated of a vehicle according to an embodiment of the present disclosure.

Fig. 4 is a schematic structural view of a vehicle tail gas power generation device provided by an embodiment of the present disclosure at a rail intake end.

Fig. 5 is a schematic structural view of a vehicle tail gas power generation device provided in an embodiment of the present disclosure at a stringer gas outlet end.

Fig. 6 is a schematic diagram of a connection structure between a thermoelectric generator and a longitudinal beam of a vehicle tail gas power generation device according to an embodiment of the present disclosure.

Description of the reference numerals

1. A longitudinal beam; 2. an exhaust pipe; 3. a thermoelectric generator; 31. a thermoelectric generation module; 32. a heat dissipation enhancing structure; 33. a thermoelectric element; 34. a battery; 35. a power generation controller; 36. a battery monitoring sensor; 4. a shunt tube group; 41. a first pipeline; 42. a first air extraction structure; 43. a heat rejection line; 44. a second pipeline; 45. a second air extraction structure; 46. a three-way valve; 47. a split heat exchange tube; 5. reinforcing plate ribs; 6. the vehicle is to be heated.

Detailed Description

Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.

The utility model provides a vehicle tail gas power generation facility, this vehicle tail gas power generation facility can set up on the tail gas blast pipe of vehicle to can utilize the heat energy that tail gas produced to generate electricity at the in-process that the vehicle was gone, in order to realize the rational utilization to the tail gas.

As shown in fig. 1, 4 and 5, the vehicle exhaust power generation device includes a longitudinal beam 1, an exhaust pipe 2 and a thermoelectric generator 3, wherein the interior of the longitudinal beam 1 is in a hollow structure, the exhaust pipe 2 penetrates through the longitudinal beam 1 and is at least partially disposed in the longitudinal beam 1, and the thermoelectric generator 3 is fixedly disposed on the longitudinal beam 1.

Through the setting of this kind of structure, through setting up tail gas blast pipe 2 in longeron 1 with the emission tail gas, need not set up extra arrangement space for tail gas blast pipe 2, improved space utilization, provided bigger space for the arrangement of battery package, guaranteed whole car continuation of the journey mileage. Meanwhile, heat generated by the tail gas exhaust pipe 2 can be gradually transferred to the longitudinal beam 1, and the heat can be transferred to the thermoelectric generator 3, so that the thermoelectric motor can generate power. The arrangement of the thermoelectric generator enables the heat of the exhaust pipe to be well utilized, and the temperature of the exhaust pipe is properly reduced.

In some embodiments, as shown in fig. 6, the thermoelectric generator 3 includes a thermoelectric generation module 31 and a heat dissipation enhancing structure 32, where one side of the thermoelectric generation module 31 is connected to the longitudinal beam 1, the heat dissipation enhancing structure 32 is fixedly disposed on the other side of the thermoelectric generation module 31, and the thermoelectric generation module 31 includes a thermoelectric element 33, and the thermoelectric element 33 is adapted to be electrically connected to an energy storage device, and the energy storage device is a battery 34.

With such a connection, during the exhaust process through the exhaust pipe 2, one end of the thermoelectric power generation module 31 can obtain heat from the longitudinal beam 1, and due to the heat dissipation enhancing structure provided at the other end of the thermoelectric power generation module 31, it is convenient to make the thermoelectric element 33 form a temperature difference on both sides so as to make the thermoelectric element 3 form a current, and then the current on the thermoelectric element 33 can be input into the battery 34 for storage or output through the battery for use.

Further, the thermoelectric generator 3 further includes a power generation controller 35 and a battery monitoring sensor 36, and the battery monitoring sensor 36 is electrically connected to the battery 34 for monitoring the state of the battery 34, for example, whether the battery 34 is full or whether the battery 34 is malfunctioning. The power generation controller 35 is disposed on a connection line between the thermoelectric element 33 and the battery 34 and is electrically connected to the battery monitoring sensor 36 to control the opening and closing of the connection line according to information monitored by the battery monitoring sensor 36, so as to control whether to charge the battery 34.

With the above-described structure, when it is detected by the battery monitoring sensor 36 that the electric quantity of the battery 34 has been full or the battery has failed, this signal may be transmitted to the power generation controller 35, and at this time, the power generation controller 35 may disconnect the connection line to stop the power generation to the battery 34. If the battery 34 is not faulty and the battery 34 is not fully charged, the connection circuit is kept closed after the power generation controller 35 receives the signal, so as to continuously charge the battery 34.

The thermoelectric element 33 may be a PN semiconductor thermoelectric chip, and the heat dissipation enhancing structure 32 may be a heat sink or other structure capable of dissipating heat rapidly, which is disposed on the thermoelectric power module 31.

In some embodiments, as shown in fig. 1, the vehicle exhaust power generation device may further include a bypass pipe group 4, wherein a heat exchange space is provided between a portion of the exhaust pipe 2 located in the longitudinal beam 1 and an inner wall of the longitudinal beam 1, and at least one end of the heat exchange space is opened along an extending direction of the longitudinal beam 1, so that external air can enter the heat exchange space along with running of the vehicle, thereby eliminating the need for an additional cooling medium. The shunt tube group 4 is arranged on the longitudinal beam 1, is communicated with the heat exchange space in the longitudinal beam 1, and conducts out heat in the heat exchange space.

By means of the arrangement of the split-flow tube group 4, in the process of generating electricity by utilizing tail gas, when the tail gas passes through the tail gas exhaust pipe 2, air in the heat exchange space in the longitudinal beam 1 can be heated, and at the moment, hot air in the heat exchange space can be output through the split-flow tube group 4 for further use, so that the utilization rate of the tail gas is improved. For example, the output end of the heat exhaust pipe 43 may be extended into the cabin of the vehicle, so that hot air is output into the cabin, thereby achieving the effect of warming the cabin, so that the air conditioner in the vehicle may be prevented from being turned on, and a certain energy source may be saved.

In some embodiments, as shown in fig. 1, the bypass pipe group 4 includes a first pipe 41, a heat exhaust pipe 43, and a first air extraction structure 42, wherein one end of the first pipe 41 is connected to the girder 1 and is in communication with a heat exchange space in the girder 1, and the heat exhaust pipe 43 is in communication with the other end of the first pipe 41 to output hot air from the heat exchange space through the first pipe 41. And the first air pumping structure 42 is disposed on the first pipeline 41.

In this way, when the exhaust gas is discharged to heat the air in the heat exchange space, if the temperature of the exhaust gas is high enough to meet the requirement of the power generation of the thermoelectric generator 3, the first air extraction structure 42 can be opened to extract the hot air in the heat exchange space through the first pipeline 41 and output the hot air through the heat extraction pipeline 43 for continuous use, for example, the output end of the heat extraction pipeline 43 can be extended into the cabin of the vehicle, so that the hot air is output into the cabin, and the cabin is heated. In addition, when the air in the heat exchange space is extracted, the air can be continuously injected into the heat exchange space through the opening end of the longitudinal beam 1.

In a further embodiment, as shown in fig. 2, the bypass pipe group 4 may further include a second pipe 44 and a second air pumping structure 45, where one end of the second pipe 44 is connected to the longitudinal beam 1 and is in communication with the heat exchange space in the longitudinal beam 1, and the second air pumping structure 45 is disposed on the second pipe 44. The other end of the second pipe 44 communicates with the heat discharge pipe 43, and the first pipe 41 and the second pipe 44 are provided in parallel. The second conduit 44 is located rearward of the first conduit.

Through the arrangement of such structure, when discharging tail gas, if after heat transfer, make the temperature that transmits to on the longeron 1 just can support the operation of thermoelectric generator 3, the usable first structure 42 that draws together at this moment is operated to take out the hot air in the heat transfer space and transmit to heat extraction pipeline 43, later export and use from heat extraction pipeline 43.

If the temperature of the tail gas is too high, which results in higher air temperature in the heat exchange space, so that the heat exchange is performed until the temperature on the longitudinal beam 1 is too high, which may affect the operation of the thermoelectric generator 3, the first air extraction structure 42 and the second air extraction structure 45 can be opened simultaneously, so that the first pipeline 41 and the second pipeline 44 are used for extracting hot air in the heat exchange space, and the first air extraction structure 42 and the second air extraction structure 45 can be respectively adjusted at the moment to control the air extraction rate of the first pipeline 41 and the second pipeline 44, so that the heat transferred to the thermoelectric generator 3 by the heat transfer mode can be effectively adjusted, and the surplus hot air can be extracted for reasonable use when the thermoelectric generator 3 effectively operates.

Further, the first and second pumping structures 45 are speed-adjustable vacuum pumps.

After the speed-regulating vacuum pump is arranged on the first pipeline 41 and the second pipeline 44, when the speed-regulating vacuum pump is started, air in the heat exchange space can be effectively pumped, and in addition, the speed of pumping air is conveniently regulated by the speed-regulating vacuum pump, so that the air quantity in the heat exchange space can be conveniently controlled by the first pipeline 41 and the second pipeline 44.

In some embodiments, as shown in fig. 3, the split-flow tube set 4 may further include a three-way valve 46 and a split-flow heat exchange tube 47, wherein the three-way valve 46 is fixedly disposed on the second pipeline 44 and connected between the second suction structure 45 and the heat exhaust pipeline 43, and one end of the split-flow heat exchange tube 47 is connected to the three-way valve 46, and the other end is in communication with the heat exhaust pipeline 43. In addition, the split heat exchange tube 47 is adapted to exchange heat with the vehicle component 6 to be heated.

Through the arrangement of the structure, when some parts on the vehicle need to be heated, the three-way valve 46 can be adjusted, so that hot air in the heat exchange space flows into the split heat exchange pipe 47, and then heat can be transferred to the parts 6 to be heated of the vehicle through the heat exchange structure, so that the parts 6 to be heated of the vehicle are heated, and the tail gas is fully utilized.

For example, the vehicle to-be-heated member 6 may be a coolant line of the engine, and thus, after being connected between the coolant line and the split heat exchange pipe 47 by the heat exchange structure, heating of the coolant line may be achieved so that the temperature of the coolant in the coolant line is raised to achieve the effect of warming up. Of course, the vehicle component 6 to be heated may be other structures in the vehicle that need to be heated, such as a vehicle seat.

The heat transfer sheet can be used to sufficiently transfer the temperature of the split heat exchange tube 47 to the vehicle component 6 to be heated. Of course, the heat exchange structure may be other structures capable of performing heat exchange, which is not limited in this disclosure.

In some embodiments, as shown in fig. 4, the axis of the exhaust pipe 2 coincides with the axis of the side member 1.

After the axis of the tail gas exhaust pipe 2 coincides with the axis of the longitudinal beam 1, the tail gas exhaust pipe 2 is located at the center position in the longitudinal beam 1, so that the tail gas exhaust pipe 2 can be conveniently and uniformly heated to air in each part of the heat exchange space, and heat can be quickly and uniformly transferred to the longitudinal beam 1.

In some embodiments, as shown in fig. 4, a plurality of reinforcing ribs 5 are fixedly disposed in the longitudinal beam 1, one side edge of the plurality of reinforcing ribs 5 is fixedly connected to the inner wall of the longitudinal beam 1, and the other side edge is disposed toward the center direction of the longitudinal beam 1 and is abutted to the outer wall of the exhaust pipe 2.

Because set up longeron 1 as inside hollow structure, consequently through the setting of a plurality of reinforcing plate muscle 5, can further strengthen this longeron 1 holistic intensity, in addition, make the reinforcing plate muscle 5 support behind the outer wall of tail gas blast pipe 2, can form a support to tail gas blast pipe 2 to form a spacing to tail gas blast pipe 2, guarantee to make the stable fixing in the middle part of longeron 1 of tail gas blast pipe 2, also avoid making the position of tail gas blast pipe 2 take place the skew and cause adverse effect at the in-process of discharging tail gas simultaneously.

It should be noted that, the reinforcing ribs 5 may be provided with a plurality of openings, so as to avoid that the heat exchange space is separated by the reinforcing ribs 5 to cause that air in each space does not circulate, and the output of hot air in the heat exchange space is affected.

In a further embodiment, the reinforcing ribs 5 may be made of a heat conducting material, for example, the reinforcing ribs 5 may be made of a metal plate, which has a good heat conducting function, so that the heat exchange efficiency of the heat exchanger can be improved when the exhaust pipe 2 exchanges heat with the air in the heat exchange space.

In one embodiment, the stringers may also be rocker beams so that the battery may extend to the rocker beams, in turn providing greater installation space for the battery pack.

Based on the same technical concept, the embodiment of the present disclosure also provides a vehicle including the vehicle exhaust power generation device related to the above embodiment.

After the vehicle tail gas power generation device is arranged in a vehicle, when the vehicle emits tail gas, the vehicle tail gas power generation device can be utilized to generate power, and meanwhile, the first pipeline 41, the second pipeline 44, the heat extraction pipeline 43 and the like on the vehicle tail gas power generation device can be utilized to output air heated in the tail gas emission process to the vehicle cabin so as to heat the cabin and the like, so that the vehicle tail gas can be reasonably utilized, and the utilization rate of the vehicle tail gas is improved.

The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.

In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.

Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.

Claims

1. A vehicle exhaust power generation device, characterized by comprising:

the inside of the longitudinal beam is in a hollow structure;

the tail gas exhaust pipe penetrates through the longitudinal beam and is at least partially arranged in the longitudinal beam, and a heat exchange space is formed between the part of the tail gas exhaust pipe positioned in the longitudinal beam and the inner wall of the longitudinal beam;

the thermoelectric generator is arranged on the longitudinal beam, so that heat generated by the tail gas exhaust pipe is transmitted to the thermoelectric generator through the longitudinal beam.

2. The vehicle exhaust power generation device according to claim 1, wherein the thermoelectric generator includes:

3. The vehicle exhaust power generation device according to claim 1, characterized in that the vehicle exhaust power generation device further comprises a shunt tube group;

at least one end of the heat exchange space is opened along the extending direction of the longitudinal beam;

4. A vehicle exhaust gas power plant according to claim 3, wherein the shunt tube group comprises:

the first air extraction structure is arranged on the first pipeline.

5. The vehicle exhaust power generation device according to claim 4, wherein the shunt tube group further includes:

the second air extraction structure is arranged on the second pipeline;

6. The vehicle exhaust power generation device according to claim 5, wherein the shunt tube group further includes:

7. The vehicle exhaust power generation device according to claim 5, wherein the first pipe is provided in parallel with the second pipe.

8. The vehicle exhaust power plant according to claim 5 wherein the first and second bleed structures are speed-regulated vacuum pumps.

9. The vehicle exhaust power generation device according to claim 1, wherein an axis of the exhaust pipe coincides with an axis of the side member.

10. The vehicle exhaust power generation device according to claim 9, wherein a plurality of reinforcing ribs are provided in the side member, one side edge of the plurality of reinforcing ribs is connected to the inner wall of the side member, and the other side edge is abutted to the outer wall of the exhaust pipe.

11. The vehicle exhaust power generation apparatus according to any one of claims 1 to 10, wherein the side member is a threshold beam.

12. A vehicle comprising a vehicle exhaust gas power generation device according to any one of claims 1 to 11.