CN211573631U - Expansion kettle, thermal management system and new energy automobile - Google Patents
Expansion kettle, thermal management system and new energy automobile Download PDFInfo
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- CN211573631U CN211573631U CN201921952321.6U CN201921952321U CN211573631U CN 211573631 U CN211573631 U CN 211573631U CN 201921952321 U CN201921952321 U CN 201921952321U CN 211573631 U CN211573631 U CN 211573631U
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- kettle
- guide plate
- baffle
- kettle body
- expansion
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- 239000007788 liquid Substances 0.000 claims abstract description 86
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000000203 mixture Substances 0.000 claims abstract description 49
- 238000001816 cooling Methods 0.000 claims description 10
- 239000002826 coolant Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000007726 management method Methods 0.000 description 13
- 239000000110 cooling liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000012809 cooling fluid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
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Abstract
The application discloses inflation kettle, thermal management system and new energy automobile. The expansion kettle includes: the kettle body, the draft tube, the first guide plate and the second guide plate; the kettle body is provided with a water inlet and a water outlet; the honeycomb duct comprises a first end and a second end which are opposite, the first end is communicated with the water inlet, and the second end extends towards the water outlet or the bottom of the kettle body; the draft tube is used for allowing the gas-liquid mixture to flow into the kettle body and directly mix with the liquid in the kettle body; the first guide plate is arranged around the guide pipe and forms a buffer cavity with the kettle wall of the kettle body; the second guide plate is positioned on one side of the first guide plate back to the guide pipe. Through the water conservancy diversion effect of honeycomb duct, first guide plate and second guide plate for the direct liquid mixture with the expansion kettle in the gas-liquid mixture to this can reduce the coolant liquid and get into the kettle body and the produced underwater sound of gas outgoing, and then improve the NVH performance of the new energy automobile who uses this expansion kettle.
Description
Technical Field
The application relates to the technical field of new energy vehicles, in particular to an expansion kettle, a thermal management system and a new energy vehicle.
Background
Along with the development of new energy automobiles, expansion kettles are more and more applied to the heat management system of the whole automobile, and different quantities of expansion kettles are configured according to different heat management systems. In the exhaust process, the cooling liquid flowing out of the expansion kettle can emit continuous flowing water sound. For the water flow sound, the conventional fuel oil vehicle cannot hear the water flow sound due to the high noise of the engine; however, the sound of the whole vehicle is very small in the driving process of the new energy vehicle, so that the flowing water sound emitted by the expansion kettle in the waterway system is relatively oriented, and the NVH (Noise, Vibration and Harshness) performance of the new energy vehicle is influenced.
SUMMERY OF THE UTILITY MODEL
The application aims to provide an expansion kettle, a thermal management system and a new energy automobile so as to solve the problem that when the new energy automobile operates, noise generated by the expansion kettle is large.
In order to solve the technical problem, the application provides an expansion kettle. The expansion kettle comprises: a kettle body and a flow guide pipe; the kettle body is provided with a water inlet and a water outlet; the flow guide pipe comprises a first end and a second end which are opposite, the first end is communicated with the water inlet, and the second end extends towards the water outlet or the bottom of the kettle body; the draft tube is used for allowing the gas-liquid mixture to flow into the kettle body and directly mixing with the liquid in the kettle body.
In one embodiment, the expansion tank further comprises: a first baffle; the first guide plate is arranged around the guide pipe in a surrounding mode, and the water outlet is located on one side, back to the guide pipe, of the first guide plate; the first guide plate and the kettle wall of the kettle body form a buffer cavity together; the second end of the draft tube is positioned in the buffer cavity.
In one embodiment, the first baffle comprises a plurality of plate body parts connected in sequence; or, the first guide plate is an arc-shaped plate.
In one embodiment, the expansion tank further comprises: a second baffle; the second guide plate and the first guide plate are arranged at intervals and are positioned on one side of the first guide plate far away from the flow guide pipe.
In one embodiment, the second baffle is larger than the first baffle in size, and a gap is formed between the second baffle and the first baffle, and at least part of the water outlet is exposed from the gap.
In one embodiment, the second diversion plate is provided with a diversion port at a position corresponding to the water outlet, and the diversion port is communicated with the water outlet.
In one embodiment, the distance between the flow guide pipe and the surface of the first flow guide plate close to the flow guide pipe is 10 mm-15 mm; the distance between two adjacent surfaces of the first guide plate and the second guide plate is 3-5 mm.
In one embodiment, the expansion kettle further comprises a kettle cover assembly, and the kettle cover assembly is covered with the kettle body. The direction from the bottom of the kettle body to the kettle cover assembly is the height direction, and the height difference between the first guide plate and the second guide plate is larger than or equal to 10 mm; the distance between the top end of the second guide plate and the bottom surface of the kettle cover component is larger than or equal to 8 mm.
The application also provides a heat management system, a cooling pipeline and the expansion kettles in the embodiments; the cooling pipeline is communicated with a water inlet of the expansion kettle and is used for injecting a gas-liquid mixture into the expansion kettle.
The application further provides a new energy automobile which comprises the thermal management system of the embodiment.
This application is through the water conservancy diversion effect of honeycomb duct for the direct liquid mixture with in the expansion kettle of gas-liquid mixture to this can reduce the coolant liquid and get into the kettle body and the produced underwater sound of gas outgoing, and then improves the NVH performance of the new energy automobile who uses this expansion kettle.
Drawings
Fig. 1 is a schematic view of an expansion tank according to an embodiment of the present application.
Fig. 2 is a sectional view of the expansion tank of fig. 1 taken along the line a-a.
Fig. 3 is a sectional view of an expansion tank according to an embodiment of the present application.
Fig. 4 is an enlarged schematic view of the region B of the expansion tank of fig. 3.
Fig. 5 is a partial schematic view of the interior of an expansion tank according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
Referring to fig. 1 to 5, in the expansion tank 100 provided in the embodiments of the present application, the gas-liquid mixture is directly mixed with the liquid in the expansion tank 100 through the flow guiding effect of the flow guiding pipe 110, instead of being splashed onto the liquid surface, so as to reduce the water noise generated by the coolant entering the tank body 101 and the gas being discharged, and further improve the NVH performance of the new energy vehicle using the expansion tank 100.
The expansion kettle can be applied to a thermal management system of the new energy automobile to ensure that the new energy automobile normally runs. During the operation of the thermal management system, the cooling liquid is mixed with gas to form a gas-liquid mixture, and the gas-liquid mixture flows between the cooling pipelines of the thermal management system to carry away heat generated by the working of components such as a battery and the like. The temperature of the gas-liquid mixture is correspondingly increased while the gas-liquid mixture takes away heat; correspondingly, in the circulation process of the cooling liquid in the water channel system, gas can be generated due to the change of the system and the external pressure, and the gas and the liquid can generate larger underwater sound when the gas and the liquid mixture flow into the expansion kettle
Referring to fig. 1 to 3, in view of the above problem of underwater sound, the present application provides an expansion tank 100 comprising: a kettle body 101 and a draft tube 110. The interior of the kettle body 101 may contain a cooling fluid, which is generally water or a liquid whose solvent is water, but it is not excluded that the cooling fluid may be another type of liquid. For the sake of understanding, the cooling liquid in the embodiments of the present application is described by taking water as an example. The kettle body 101 is provided with a water inlet 106 and a water outlet 108 which are communicated with the interior of the kettle body 101, the gas-liquid mixture supplied by the water inlet 106 flows into the kettle body 101, and the water outlet 108 supplies water to flow out of the kettle body 101. When the normal expansion kettle works, the gas-liquid mixture of the external cooling pipeline flows into the kettle from the water inlet, falls down by the height difference between the water inlet and the liquid level, and then slaps the liquid level to be mixed with the liquid in the kettle body. However, due to the height difference between the water inlet and the liquid level, the potential energy of the height difference can be converted into kinetic energy in the falling process of the gas-liquid mixture, and the gas-liquid mixture can generate stronger underwater sound when slapping the liquid level; therefore, the NVH performance of the new energy automobile using the expansion kettle is influenced. Based on the above problems, the expansion kettle 100 provided by the present application is connected to the water inlet 106 through the flow guiding pipe 110, and the gas-liquid mixture of the external cooling pipe is guided into the liquid inside the kettle body 101 by the flow guiding effect of the flow guiding pipe 110, so as to reduce the sound generated when the gas-liquid mixture is mixed with the liquid inside the kettle.
In some embodiments, the expansion tank 100 further comprises a lid assembly 102, and the lid assembly 102 can be closed with the tank body 101.
In some embodiments, the flow tube 110 includes a first end 110a and a second end 110b opposite to each other, and for the flow tube 110 alone, the water may flow from the first end 110a to the second end 110b, or from the second end 110b to the first end 110a, without limitation. For the sake of understanding, the duct 110 of the present application is such that the first end 110a is in communication with the water inlet 106, and the second end 110b extends towards the water outlet 108 or towards the bottom of the kettle body 101. On the whole, when the kettle body 101 of the expansion kettle 100 is filled with liquid, a part of the guide pipe 110 is inserted below the liquid level, namely, a part of the guide pipe 110 including the second end 110b is positioned below the liquid level, so that the gas-liquid mixture flowing out of the guide pipe 110 is directly contacted with the liquid and mixed, the sound during mixing is reduced, and the NVH performance of the new energy automobile using the expansion kettle 100 is improved.
Referring to fig. 2 to 4, in some embodiments, at least the gas-liquid mixture needs to flow between the expansion tank 100 and the external cooling pipe; accordingly, a driving member is provided to impart kinetic energy to the flow of the gas-liquid mixture. Thus, when the gas-liquid mixture flows out of the draft tube 110, the speed of the gas-liquid mixture is still relatively high; to this end, the expansion tank 100 further comprises: the first baffle 120 is used for blocking and guiding the gas-liquid mixture through the first baffle 120 so as to further reduce the sound generated by the gas-liquid mixture mixing with the liquid in the kettle body 101. The first guide plate 120 is arranged around the draft tube 110, and the water outlet 108 of the kettle body 101 is positioned on one side of the first guide plate 120 back to the draft tube 110; that is, the first delivery tube 110 is disposed between the outlet 108 and the delivery tube 110. The gas-liquid mixture flowing in through the guide tube 110 rises by the first guide plate 120, so that water in the gas-liquid mixture is mixed with the liquid in the kettle body 101, and the gas in the gas-liquid mixture slowly rises to the liquid surface and is discharged.
It should be understood that the first baffle 120 and the wall of the kettle body 101 together form a buffer chamber, and the water outlet 108 is located in other areas outside the buffer chamber. The second end 110b of the draft tube 110 is located in the buffer chamber, and when the gas-liquid mixture flows out from the second end 110b of the draft tube 110, the gas-liquid mixture rises under the buffer action of the buffer chamber, so as to reduce the flow velocity of the gas-liquid mixture, and further reduce the velocity of the gas discharged from the liquid surface and the sound generated during the discharge. Referring to fig. 4, in some embodiments, the distance D1 between the flow guide tube 110 and the surface of the first baffle 120 close to the flow guide tube 110 is 10mm to 15 mm. Such as: the distance D1 is 11mm, 12mm, 13mm, 14 mm.
In some embodiments, the first baffle 120 includes a plurality of plate portions connected in series, and an included angle between adjacent plate portions is an acute angle, a right angle, or an obtuse angle. Such as: the first baffle 120 includes a plurality of first plate portions (not shown), second plate portions (not shown), and third plate portions (not shown) connected in series. In other embodiments, the first baffle is an arcuate plate.
Referring to fig. 2 to 4, in some embodiments, to reduce the sound of mixing the gas-liquid mixture with the liquid again, the expansion tank 100 further includes: a second baffle 130. The second baffle 130 has a shape similar to the shape of the first baffle 120. Such as: the second baffle 130 and the first baffle 120 each comprise a plurality of plate body portions connected in series; alternatively, the second baffle 130 and the first baffle 120 are both arc-shaped plates. In addition, the second baffle 130 has a shape that is different from the shape of the first baffle 120. Such as: the second baffle 130 includes a plurality of plate portions connected in sequence; the first baffle 120 is an arc-shaped plate, which is not limited herein.
The second baffle 130 is spaced apart from the first baffle 120, and the second baffle 130 is located on a side of the first baffle 120 away from the draft tube 110; that is, the second baffle 130 is further from the draft tube 110 than the first baffle 120. It should be appreciated that the second baffle 130 is larger in size than the first baffle 120, corresponding to the second baffle 130 being taller than the first baffle 120. Referring to fig. 3 and 4, in some embodiments, the height difference H1 between the first and second baffles 120 and 130 is greater than or equal to 10mm, wherein the height direction a is along the direction from the bottom of the kettle body 101 to the kettle lid assembly 102. Such as: the height difference H1 is 11mm, 12mm, 13mm, 14mm, 15 mm.
The spaced apart second baffle 130 and the first baffle 120 form a gap therebetween that exposes at least a portion of the outlet port 108. In some embodiments, since the size of the second baffle 130 is larger than that of the first baffle 120, when the gas-liquid mixture rises from the first baffle 120 to a portion of the second baffle 130 higher than the first baffle 120, the space of the buffer chamber becomes larger, so that the gas-liquid mixture is decompressed, and correspondingly, the flow rate of the gas-liquid mixture decreases again. In some embodiments, the distance D2 between two adjacent surfaces of the first baffle 120 and the second baffle 130 is between 3mm and 5mm, as shown in fig. 4. It should be understood that the distance D2 is the width of the gap.
When the gas-liquid mixture contacts the second baffle 130, part of the liquid in the gas-liquid mixture flows downwards along the gap between the first baffle 120 and the second baffle 130 and flows out from the part of the water outlet 108 below the gap. Another part of the liquid in the gas-liquid mixture will continue to rise slowly along the second deflector 130 and mix with the liquid inside the kettle body 101. And the gas in the gas-liquid mixture rises to the liquid level at a low speed and is discharged through the diversion and buffering of the first diversion plate 120 and the second diversion plate 130. When the air is discharged, the fluctuation or ripple of the liquid level inside the kettle body 101 is small, and high decibel sound is not generated.
Referring to fig. 3 to 5, in some embodiments, in order to facilitate the liquid in the kettle body 101 to flow out from the water outlet 108, the second diversion plate 130 is provided with a diversion port 131 at a position corresponding to the water outlet 108, and the diversion port 131 is communicated with the water outlet 108. Therefore, the liquid on both sides of the second diversion plate 130 is communicated with the water outlet 108 through the diversion port 131, so as to improve the efficiency of liquid discharge.
Referring to fig. 1 and 3, in some embodiments, the distance H2 between the top end of the second baffle 130 and the bottom surface of the lid assembly 102 along the height direction a is greater than or equal to 8 mm. Such as: the distance H2 between the top end of the second baffle 130 and the bottom surface of the pot lid assembly 102 is 9mm, 10mm, 11 mm. The lid assembly 102 is also provided with a pressure valve (not shown) which can detect the air pressure inside the kettle body 101. When the air pressure inside the kettle body 101 exceeds a set threshold, the pressure valve opens to reduce the air pressure inside the kettle body 101.
It will be appreciated that when the kettle body 101 is filled with liquid, the liquid level is located between the second baffle 130 and the lid assembly 102. Under the condition of ensuring the safe use of the expansion kettle 100 and reducing the sound of the mixture of the gas-liquid mixture and the liquid, the distance between the liquid level and the second guide plate 130 is greater than or equal to 5mm, and the distance between the liquid level and the kettle cover assembly 102 is greater than or equal to 3 mm.
Referring to fig. 1 to 5, an embodiment of the present application further provides a thermal management system. The thermal management system comprises: a cooling pipe, and at least one expansion tank 100 as described in the above embodiments. The cooling pipe is communicated with the water inlet of the expansion tank 100, and the gas-liquid mixture is injected into the expansion tank 100. The expansion tank 100 performs gas-liquid separation on the gas-liquid mixture to recycle the coolant.
It should be understood that the expansion kettle provided by the application can also be used in a warm air system of an air conditioner; similarly, when the warm air system of the air conditioner using the expansion kettle is in operation, the sound of the gas-liquid mixture flowing into the expansion kettle is small, so that the operation noise of the air conditioner can be reduced, and the use experience of the air conditioner can be improved.
Referring to fig. 1 to 5, an embodiment of the present application further provides a new energy vehicle including the thermal management system of the above embodiment.
While the foregoing is directed to embodiments of the present application, it will be appreciated by those skilled in the art that various changes and modifications may be made without departing from the principles of the application, and it is intended that such changes and modifications be covered by the scope of the application.
Claims (10)
1. An expansion tank, characterized in that it comprises: a kettle body and a flow guide pipe;
the kettle body is provided with a water inlet and a water outlet;
the flow guide pipe comprises a first end and a second end which are opposite, the first end is communicated with the water inlet, and the second end extends towards the water outlet or the bottom of the kettle body; the draft tube is used for allowing the gas-liquid mixture to flow into the kettle body and directly mixing with the liquid in the kettle body.
2. The expansion tank of claim 1, further comprising: a first baffle; the first guide plate is arranged around the guide pipe in a surrounding mode, and the water outlet is located on one side, back to the guide pipe, of the first guide plate;
the first guide plate and the kettle wall of the kettle body form a buffer cavity together; the second end of the draft tube is positioned in the buffer cavity.
3. The expansion tank as claimed in claim 2, wherein said first baffle comprises a plurality of plate portions connected in series; or, the first guide plate is an arc-shaped plate.
4. The expansion tank as claimed in claim 2, further comprising: a second baffle; the second guide plate and the first guide plate are arranged at intervals and are positioned on one side of the first guide plate far away from the flow guide pipe.
5. The expansion tank as claimed in claim 4, wherein said second baffle is larger in size than said first baffle, and a gap is formed between said second baffle and said first baffle, said gap exposing at least a portion of said water outlet.
6. The expansion kettle as claimed in claim 5, wherein said second baffle has a diversion port at a position corresponding to said water outlet, said diversion port communicating with said water outlet.
7. The expansion kettle of claim 4, wherein the distance between the draft tube and the surface of the first baffle close to the draft tube is 10mm to 15 mm; the distance between two adjacent surfaces of the first guide plate and the second guide plate is 3-5 mm.
8. The expansion tank of claim 4, further comprising a lid assembly, said lid assembly covering said tank body;
the direction from the bottom of the kettle body to the kettle cover assembly is the height direction, and the height difference between the first guide plate and the second guide plate is larger than or equal to 10 mm; the distance between the top end of the second guide plate and the bottom surface of the kettle cover component is larger than or equal to 8 mm.
9. A thermal management system, comprising: a cooling pipe, and at least one expansion tank according to any one of claims 1 to 8; the cooling pipeline is communicated with a water inlet of the expansion kettle and is used for injecting a gas-liquid mixture into the expansion kettle.
10. A new energy automobile, characterized by comprising the thermal management system according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921952321.6U CN211573631U (en) | 2019-11-12 | 2019-11-12 | Expansion kettle, thermal management system and new energy automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921952321.6U CN211573631U (en) | 2019-11-12 | 2019-11-12 | Expansion kettle, thermal management system and new energy automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211573631U true CN211573631U (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921952321.6U Active CN211573631U (en) | 2019-11-12 | 2019-11-12 | Expansion kettle, thermal management system and new energy automobile |
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| Country | Link |
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| CN (1) | CN211573631U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113250806A (en) * | 2021-06-18 | 2021-08-13 | 宁波吉利汽车研究开发有限公司 | Expansion kettle, cooling system and automobile |
| CN114919469A (en) * | 2022-05-30 | 2022-08-19 | 重庆长安新能源汽车科技有限公司 | Pressure lid, inflation kettle assembly and vehicle |
| WO2022226763A1 (en) * | 2021-04-27 | 2022-11-03 | 浙江吉利控股集团有限公司 | Expansion kettle for vehicle cooling system and vehicle cooling system |
| CN115790009A (en) * | 2022-09-28 | 2023-03-14 | 重庆长安汽车股份有限公司 | Monitoring device and method for electric vehicle cooling system |
-
2019
- 2019-11-12 CN CN201921952321.6U patent/CN211573631U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022226763A1 (en) * | 2021-04-27 | 2022-11-03 | 浙江吉利控股集团有限公司 | Expansion kettle for vehicle cooling system and vehicle cooling system |
| CN113250806A (en) * | 2021-06-18 | 2021-08-13 | 宁波吉利汽车研究开发有限公司 | Expansion kettle, cooling system and automobile |
| CN114919469A (en) * | 2022-05-30 | 2022-08-19 | 重庆长安新能源汽车科技有限公司 | Pressure lid, inflation kettle assembly and vehicle |
| CN115790009A (en) * | 2022-09-28 | 2023-03-14 | 重庆长安汽车股份有限公司 | Monitoring device and method for electric vehicle cooling system |
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