Overflow tank and vehicle

Abstract

The utility model discloses an overflow tank and a vehicle, the overflow tank comprises a tank body and a gas-liquid separation piece, the gas-liquid separation piece is arranged in the tank body, a first gas-liquid separation cavity is formed between the lower side part of the gas-liquid separation piece and the tank body, and a second gas-liquid separation cavity is formed between the upper side of the gas-liquid separation piece and the tank body; a liquid storage cavity is formed between the other part of the lower side of the gas-liquid separation part and the tank body, and the first gas-liquid separation cavity and the liquid storage cavity are separated from each other. By arranging the first gas-liquid separation cavity, the second gas-liquid separation cavity, the gas-liquid separation piece and the liquid storage cavity, a flow channel of a gas-liquid mixture in the tank body is in an n shape, the gas-liquid separation frequency and the gas-liquid separation time can be increased, the gas-liquid separation efficiency is improved, the cooling efficiency of the system is improved, and noise is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to an overflow tank and a vehicle. Background Art

[0002] As the thermal management architecture of the vehicle becomes more and more complex and the usage scenarios of the vehicle become more diverse, multiple overflow tanks are arranged in the water circuit of the cooling system. An important function of the overflow tank in the cooling system is gas-liquid separation, which separates the air from the coolant, improves the cooling system performance, and reduces system noise.

[0003] However, the current overflow tank structure has the problem of incomplete gas-liquid separation. When the system flow is high, the bubbles in the coolant are not separated in time and enter the next cycle, resulting in an overall decrease in the cooling system performance and an increase in system noise, which seriously affects the NVH of the entire vehicle. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an overflow tank, in which the flow channel of the gas-liquid mixture in the tank body is in a "J" shape, which can increase the number of gas-liquid separations and the gas-liquid separation time, improve the gas-liquid separation efficiency, improve the cooling efficiency of the system, and reduce noise.

[0005] The overflow tank according to the first aspect of the utility model comprises: a tank body; a gas-liquid separator, wherein the gas-liquid separator is arranged in the tank body, a first gas-liquid separation chamber is formed between a lower part of the gas-liquid separator and the tank body, a second gas-liquid separation chamber is formed between an upper side of the gas-liquid separator and the tank body, a liquid storage chamber is formed between another lower part of the gas-liquid separator and the tank body, and the first gas-liquid separation chamber and the liquid storage chamber are separated from each other.

[0006] According to the overflow tank of the embodiment of the utility model, by arranging the first gas-liquid separation chamber, the second gas-liquid separation chamber, the gas-liquid separation element and the liquid storage chamber, the flow channel of the gas-liquid mixture in the tank body is in the shape of a "J", which can increase the number of gas-liquid separations and the gas-liquid separation time, improve the gas-liquid separation efficiency, improve the cooling efficiency of the system, and reduce noise.

[0007] According to some embodiments of the utility model, the tank body includes: an upper tank body and a lower tank body, the upper tank body and the lower tank body are aligned, the first gas-liquid separation chamber and the liquid storage chamber are formed between the gas-liquid separation element and the lower tank body, and a second gas-liquid separation chamber is formed between the upper side of the gas-liquid separation element and the upper tank body.

[0008] According to some embodiments of the utility model, a first baffle is provided on the lower tank body, the gas-liquid separation element is provided on the upper side of the first baffle, and the first baffle is sandwiched between the first gas-liquid separation chamber and the liquid storage chamber.

[0009] According to some embodiments of the utility model, a water inlet is provided on the upper tank body, and the water inlet is connected to the first gas-liquid separation chamber. A water outlet is provided on the lower tank body, and the water outlet is connected to the liquid storage chamber. The water inlet and the water outlet are parallel to each other.

[0010] According to some embodiments of the utility model, a second baffle is provided on the upper tank body, and a third baffle is provided on the lower tank body, the second baffle and the third baffle are abutted against each other, the water inlet and the second baffle are arranged opposite to each other, and a liquid inlet channel is formed between the second baffle and the third baffle and the water inlet, and the liquid inlet channel is connected to the first gas-liquid separation chamber.

[0011] According to some embodiments of the present invention, the third baffle and the bottom wall of the lower tank body are spaced apart from each other so as to form a gap between the third baffle and the lower tank body for the coolant to flow through.

[0012] According to some embodiments of the utility model, a first stop rib extending toward the upper tank body is provided on the upper side of the gas-liquid separator; and a second stop rib extending toward the gas-liquid separator is provided on the upper tank body, and the first stop rib and the second stop rib are abutted against each other; and a third stop rib toward the gas-liquid separator is provided on the lower tank body, and the third stop rib is abutted against the lower side of the gas-liquid separator.

[0013] According to some embodiments of the utility model, a plurality of first positioning portions are provided on the side wall of the lower tank body, and a plurality of second positioning portions are provided on the gas-liquid separation element. The plurality of first positioning portions and the plurality of second positioning portions correspond to each other one by one and are positioned and matched with each other.

[0014] According to some embodiments of the utility model, a liquid adding port is provided on the upper tank body, the liquid adding port is communicated with the second gas-liquid separation chamber, and an overflow tank cover is connected to the liquid adding port.

[0015] The vehicle according to the second aspect of the present utility model comprises the overflow tank.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is a structural schematic diagram of an overflow tank according to an embodiment of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the lower tank body according to an embodiment of the utility model;

[0020] Figure 3 is a top view of an overflow tank according to an embodiment of the utility model;

[0021] Figure 4 yes Figure 3 Section view AA in;

[0022] Figure 5 is a side view of an overflow tank according to an embodiment of the utility model;

[0023] Figure 6 yes Figure 5 Section view BB in.

[0024] Reference numerals:

[0025] 100. Overflow tank;

[0026] 11. Upper tank body; 12. Lower tank body; 13. Gas-liquid separation element; 14. First gas-liquid separation chamber; 15. Second gas-liquid separation chamber; 16. Liquid storage chamber; 17. First baffle plate; 18. Water inlet; 19. Water outlet; 20. Second baffle plate; 21. Third baffle plate; 22. Liquid inlet channel; 23. First stop rib; 24. Second stop rib; 25. Third stop rib; 26. First positioning portion; 28. Liquid filling port; 29. ​​Overflow tank cover. DETAILED DESCRIPTION

[0027] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0028] Reference below Figure 1-Figure 6 The overflow tank 100 according to the embodiment of the utility model is described, and the utility model also provides a vehicle.

[0029] Reference Figure 1-6 As shown, the overflow tank 100 of the utility model embodiment includes: a tank body and a gas-liquid separator 13, the gas-liquid separator 13 is arranged in the tank body, a first gas-liquid separation chamber 14 is formed between the lower part of the gas-liquid separator 13 and the tank body, a second gas-liquid separation chamber 15 is formed between the upper side of the gas-liquid separator 13 and the tank body, a liquid storage chamber 16 is formed between the other lower part of the gas-liquid separator 13 and the tank body, and the first gas-liquid separation chamber 14 and the liquid storage chamber 16 are separated from each other.

[0030] Specifically, coolant can be stored inside the tank body, and the gas-liquid separator 13 is used to separate the mixture of air and coolant in the cooling circuit to ensure that there is no air in the coolant flowing out of the overflow tank 100, thereby improving the cooling performance of the system and reducing the system noise.

[0031] Furthermore, a plurality of small holes are provided on the gas-liquid separator 13. When the gas-liquid mixture passes through the gas-liquid separator 13, the liquid passes through the small holes while the gas is blocked, thereby achieving the gas-liquid separation function.

[0032] By forming a first gas-liquid separation chamber 14 between the lower part of the gas-liquid separation element 13 and the tank body, a second gas-liquid separation chamber 15 is formed between the upper side of the gas-liquid separation element 13 and the tank body, and a liquid storage chamber 16 is formed between another part of the lower side of the gas-liquid separation element 13 and the tank body, the gas-liquid mixture entering the tank body first enters the second gas-liquid separator chamber from the first gas-liquid separation chamber 14 to complete the first gas-liquid separation, and then enters the liquid storage chamber 16 from the second gas-liquid separation chamber 15 to complete the second gas-liquid separation. After two gas-liquid separations, the gas-liquid separation effect is better.

[0033] Moreover, the first gas-liquid separation chamber 14 and the liquid storage chamber 16 are separated from each other. The gas-liquid mixture entering the first gas-liquid separation chamber 14 cannot enter the liquid storage chamber 16, and can only enter the second gas-liquid separation chamber 15 through the gas-liquid separation element 13. The position of the second gas-liquid separation chamber 15 is higher than the first gas-liquid separation chamber 14, and the position of the liquid storage chamber 16 is lower than the second gas-liquid separation chamber 15. The flow channel of the gas-liquid mixture in the tank body is in the shape of a "J". The gas-liquid mixture absorbs the kinetic energy of the liquid under the action of gravity, which can increase the gas-liquid separation time and improve the gas-liquid separation efficiency. It can completely eliminate the problem of poor liquid-gas separation effect caused by high-flow mixed water, improve the cooling efficiency of the system, and reduce noise.

[0034] Specifically, Figure 4 As shown, the air flow flows in the direction indicated by the arrow in the figure, and the air flow reaches the first gas-liquid separation chamber 14. After flowing through the gas-liquid separation element 13 for the first time, the air flow reaches the second gas-liquid separation chamber 15, and then passes through the gas-liquid separation element 13 again to enter the liquid storage chamber 16, forming a "J"-shaped flow channel.

[0035] Therefore, by setting the first gas-liquid separation chamber 14, the second gas-liquid separation chamber 15, the gas-liquid separation element 13 and the liquid storage chamber 16, the flow channel of the gas-liquid mixture in the tank body is in the shape of a "J", which can increase the number of gas-liquid separations and the gas-liquid separation time, improve the gas-liquid separation efficiency, improve the cooling efficiency of the system, and reduce noise.

[0036] Reference Figure 1-6As shown, the tank body includes: an upper tank body 11 and a lower tank body 12, the upper tank body 11 and the lower tank body 12 are aligned, a first gas-liquid separation chamber 14 and a liquid storage chamber 16 are formed between the gas-liquid separator 13 and the lower tank body 12, and a second gas-liquid separation chamber 15 is formed between the upper side of the gas-liquid separator 13 and the upper tank body 11. Specifically, the upper tank body 11 and the lower tank body 12 are aligned and form a closed space, the gas-liquid mixture enters the overflow tank 100 from the upper tank body 11, the separated coolant flows into the cooling circuit through the lower tank body 12, the coolant containing air is separated into gas and liquid inside the upper tank body 11 and the lower tank body 12, and the closed overflow tank 100 can prevent liquid leakage and prevent the cooling system efficiency from being affected.

[0037] A first gas-liquid separation chamber 14 and a liquid storage chamber 16 are formed between the gas-liquid separation element 13 and the lower tank body 12, and a second gas-liquid separation chamber 15 is formed between the upper side of the gas-liquid separation element 13 and the upper tank body 11. The upper tank body 11 is located above the lower tank body 12, so the second gas-liquid separation chamber 15 is located above the first gas-liquid separation chamber 14 and the liquid storage chamber 16. In this way, the gas-liquid mixture enters from the upper tank body 11 and flows downward into the first gas-liquid separation chamber 14, and then flows from the first gas-liquid separation chamber 14 along the gas-liquid separation element 13 into the second gas-liquid separation chamber 15. Under the influence of gravity, it enters the liquid storage chamber 16 below through the small holes on the gas-liquid separation element 13, and finally flows into the cooling circuit through the lower tank body 12.

[0038] The upper tank body 11 and the lower tank body 12 may be connected by welding.

[0039] Reference Figure 1-6 As shown, a first baffle 17 is provided on the lower tank body 12, and the gas-liquid separation element 13 is provided on the upper side of the first baffle 17, and the first baffle 17 is sandwiched between the first gas-liquid separation chamber 14 and the liquid storage chamber 16. By providing the first baffle 17, the first gas-liquid separation chamber 14 and the liquid storage chamber 16 can be separated, so that the gas-liquid mixture can only flow upward into the second gas-liquid separation chamber 15, which not only completes the first gas-liquid separation but also increases the gas-liquid separation time and improves the gas-liquid separation effect.

[0040] Reference Figure 1-6As shown, the upper tank body 11 is provided with a water inlet 18, which is connected to the first gas-liquid separation chamber 14, and the lower tank body 12 is provided with a water outlet 19, which is connected to the liquid storage chamber 16, and the water inlet 18 and the water outlet 19 are parallel to each other. That is, the coolant in the cooling circuit enters the overflow tank 100 through the water inlet 18 of the upper tank body 11, and flows into the cooling circuit through the water outlet 19 of the lower tank body 12. Since the water inlet 18 is connected to the first gas-liquid separation chamber 14, the gas-liquid mixture flows into the first gas-liquid separation chamber 14, and then flows from the first gas-liquid separation chamber 14 along the gas-liquid separation element 13 into the second gas-liquid separation chamber 15, and under the influence of gravity, enters the liquid storage chamber 16 below through the small hole on the gas-liquid separation element 13, and finally flows into the cooling circuit through the water outlet 19.

[0041] Reference Figure 1-6 As shown, a second baffle 20 is provided on the upper tank body 11, and a third baffle 21 is provided on the lower tank body 12. The second baffle 20 and the third baffle 21 are in contact with each other, and the water inlet 18 and the second baffle 20 are arranged opposite to each other. A liquid inlet channel 22 is formed between the second baffle 20 and the third baffle 21 and the water inlet 18, and the liquid inlet channel 22 is connected to the first gas-liquid separation chamber 14. The second baffle 20 and the third baffle 21 have a flow-guiding function, and the second baffle 20 and the third baffle 21 extend in the up-down direction. After the gas-liquid mixture enters the overflow tank 100, it flows downward along the direction of the second baffle 20 and the third baffle 21 to the first gas-liquid separation chamber 14, which can prevent the gas-liquid mixture from directly entering the second gas-liquid separation chamber 15 or the liquid storage chamber 16, ensuring that the gas-liquid mixture undergoes two gas-liquid separations, thereby improving the reliability and gas-liquid separation effect of the overflow tank 100.

[0042] Reference Figure 1-6 As shown, the third baffle 21 and the bottom wall of the lower tank body 12 are spaced apart from each other, so that a gap for the coolant to flow through is formed between the third baffle 21 and the lower tank body 12. In other words, a gap is left between the third baffle 21 and the bottom wall of the lower tank body 12, so that the gas-liquid mixture can flow into the first gas-liquid separation chamber 14 from the gap.

[0043] Reference Figure 1-6 As shown, the upper side of the gas-liquid separator 13 is provided with a first stop rib 23 extending toward the upper tank body 11, and the upper tank body 11 is provided with a second stop rib 24 extending toward the gas-liquid separator 13, and the first stop rib 23 and the second stop rib 24 are in contact with each other. In this way, when the upper tank body 11 and the gas-liquid separator 13 are assembled, it can be judged whether they are correctly installed according to whether the stop ribs are in contact, thereby improving assembly efficiency. The first stop rib 23 and the second stop rib 24 are in contact, which can also improve the structural strength inside the overflow tank 100.

[0044] Furthermore, the lower tank body 12 is provided with a third stop rib 25 facing the gas-liquid separator 13, and the third stop rib 25 abuts against the lower side of the gas-liquid separator 13. The third stop rib 25 supports the gas-liquid separator 13 at the bottom, and can fix the gas-liquid separator 13 at a position higher than the first gas-liquid separation chamber 14 and the liquid storage chamber 16, which helps to prolong the gas-liquid separation time of the gas-liquid mixture, improve the gas-liquid separation efficiency, and also improve the structural strength of the gas-liquid separator 13.

[0045] Reference Figure 1-6 As shown, a plurality of first positioning portions 26 are provided on the side wall of the lower tank body 12, and a plurality of second positioning portions are provided on the gas-liquid separator 13. The plurality of first positioning portions 26 and the plurality of second positioning portions correspond to each other one by one and are positioned and matched with each other. Specifically, the plurality of first positioning portions 26 can be a protruding structure on the side wall of the lower tank body 12, and the protruding structure extends along the side wall of the lower tank body 12 in the up and down directions. The plurality of second positioning portions can be a groove structure at the edge of the gas-liquid separator 13, and the positions of the protrusions correspond to the grooves. By the protrusions being stuck in the grooves, the relative positions of the lower tank body 12 and the gas-liquid separator 13 can be fixed, so as to avoid displacement of the gas-liquid separator 13 and affect the gas-liquid separation effect.

[0046] Reference Figure 1-6 As shown, a liquid filling port 28 is provided on the upper tank body 11, and the liquid filling port 28 is connected to the second gas-liquid separation chamber 15, and an overflow tank cover 29 is connected to the liquid filling port 28. Since the temperature and pressure will change during the operation of the cooling system, the volume of the coolant will change accordingly, and sometimes there will be a shortage of coolant, or the coolant will be lost due to accidental leakage, etc., and the coolant is added through the liquid filling port 28 to replenish the liquid in time to ensure the normal operation of the cooling system.

[0047] The vehicle according to the second aspect of the present utility model includes an overflow tank 100 .

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0050] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An overflow tank, characterized in that: include: Tank; A gas-liquid separator, wherein the gas-liquid separator is arranged in the tank body, a first gas-liquid separation chamber is formed between the lower part of the gas-liquid separator and the tank body, a second gas-liquid separation chamber is formed between the upper side of the gas-liquid separator and the tank body, and a liquid storage chamber is formed between another lower part of the gas-liquid separator and the tank body, and the first gas-liquid separation chamber and the liquid storage chamber are separated from each other.

2. The overflow tank according to claim 1, characterized in that: The tank body includes: an upper tank body and a lower tank body, the upper tank body and the lower tank body are aligned, the first gas-liquid separation chamber and the liquid storage chamber are formed between the gas-liquid separation element and the lower tank body, and a second gas-liquid separation chamber is formed between the upper side of the gas-liquid separation element and the upper tank body.

3. The overflow tank according to claim 2, characterized in that: The lower tank body is provided with a first baffle, the gas-liquid separation element is provided on the upper side of the first baffle, and the first baffle is sandwiched between the first gas-liquid separation chamber and the liquid storage chamber.

4. The overflow tank according to claim 2, characterized in that: The upper tank body is provided with a water inlet, which is communicated with the first gas-liquid separation chamber. The lower tank body is provided with a water outlet, which is communicated with the liquid storage chamber. The water inlet and the water outlet are parallel to each other.

5. The overflow tank according to claim 4, characterized in that: A second baffle is provided on the upper tank body, and a third baffle is provided on the lower tank body. The second baffle and the third baffle are abutted against each other. The water inlet and the second baffle are arranged opposite to each other. A liquid inlet channel is formed between the second baffle and the third baffle and the water inlet, and the liquid inlet channel is communicated with the first gas-liquid separation chamber.

6. The overflow tank according to claim 5, characterized in that: The third baffle plate and the bottom wall of the lower tank body are spaced apart from each other so as to form a gap between the third baffle plate and the lower tank body for the coolant to flow through.

7. The overflow tank according to claim 2, characterized in that: A first stop rib extending toward the upper tank body is provided on the upper side of the gas-liquid separator; and The upper tank body is provided with a second stop rib extending toward the gas-liquid separator, the first stop rib and the second stop rib abut against each other; and The lower tank body is provided with a third stop rib facing the gas-liquid separator, and the third stop rib abuts against the lower side of the gas-liquid separator.

8. The overflow tank according to claim 2, characterized in that: A plurality of first positioning portions are arranged on the side wall of the lower tank body, and a plurality of second positioning portions are arranged on the gas-liquid separation element. The plurality of first positioning portions and the plurality of second positioning portions correspond to each other one by one and are positioned and matched with each other.

9. The overflow tank according to claim 2, characterized in that: The upper tank body is provided with a liquid adding port, the liquid adding port is communicated with the second gas-liquid separation chamber, and the liquid adding port is connected with an overflow tank cover.

10. A vehicle, characterized in that: include: The overflow tank according to any one of claims 1 to 9.

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