Heat exchange system and vehicle
By employing a combination of a dual-expansion chamber expansion tank and a dual-flow-channel drive pump in the vehicle cooling system, the problems of numerous components and complex structures in traditional cooling systems are solved, achieving the effects of reduced parts, space saving, and energy consumption reduction.
Patent Information
- Application Number
- CN202520115660.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-01-17
AI Technical Summary
Traditional pure electric liquid-cooled vehicle cooling systems have numerous components and complex piping layouts, resulting in high structural complexity.
An expansion tank with two independent expansion chambers and a dual-channel drive pump are combined and connected to two heat exchange circuits respectively, which simplifies the structure and drives the medium flow of both circuits simultaneously through a single drive pump.
It reduces the number of parts, simplifies the structure, saves space, reduces energy consumption, and improves the system's flexibility and reliability.
Smart Images
Figure CN223850386U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to vehicle technical field, especially a kind of heat exchange system and vehicle. BACKGROUND
[0002] In current traditional pure electric hydraulic cooling system, electric drive circuit, battery circuit is mostly split type expansion tank with multiple water pumps, to make up water line to connect electric drive expansion tank and battery expansion tank with two circuits as system to supplement coolant, and to remove gas line is connected with each system degassing point to remove excess gas in system, this layout is not only numerous parts, and pipeline arrangement is complex. SUMMARY
[0003] The utility model discloses a kind of heat exchange system and vehicle, to simplify the structural complexity of the cooling system of traditional pure electric hydraulic cooling vehicle.
[0004] To achieve the above object, the utility model provides a kind of heat exchange system, comprising:
[0005] Expansion tank, inside is equipped with two independent expansion cavities, one of two expansion cavities is communicated with first heat exchange circuit, another of two expansion cavities is communicated with second heat exchange circuit;And
[0006] Drive pump, the drive pump has two flow passages independent of each other, one of two flow passages is communicated with the first heat exchange circuit to drive the heat exchange medium to flow in the first heat exchange circuit, another of two flow passages is communicated with the second heat exchange circuit to drive heat exchange medium to flow in the second heat exchange circuit.
[0007] In an embodiment, the expansion tank is provided with a partition plate, the partition plate separates the expansion tank into two expansion cavities, the partition plate is provided with a notch on the side away from the ground, and the two expansion cavities are communicated through the notch.
[0008] In an embodiment, the partition plate is provided in a hollow state.
[0009] In an embodiment, the partition plate is arranged in the middle of the expansion tank to separate two expansion cavities with the same volume, and the expansion tank is further provided with a filling port, and the filling port is arranged close to the notch.
[0010] In an embodiment, the expansion tank is further provided with a buffer plate, at least one buffer plate is arranged in each expansion cavity, the buffer plate separates the expansion cavity to form a plurality of sub-cavities, the plurality of sub-cavities are arranged side by side along the length direction of the vehicle, and overflow holes are arranged on the buffer plate, and the overflow holes communicate the plurality of sub-cavities.
[0011] In an embodiment, the expansion tank is further provided with two supplemental ports, each of the expansion cavities is connected with one of the supplemental ports, and the two supplemental ports are arranged at two ends of the expansion tank along the length direction of the vehicle.
[0012] In an embodiment, the heat exchange system further comprises a degassing pipeline, and the first heat exchange circuit and the second heat exchange circuit are both connected with the expansion tank through the degassing pipeline.
[0013] In an embodiment, the expansion tank is further provided with two degassing ports, each of the expansion cavities is connected with one of the degassing ports, and the two degassing ports are both connected with the degassing pipeline.
[0014] In an embodiment, the outer wall of the expansion tank is provided with a reinforcing rib, and the reinforcing rib extends along the circumferential direction of the expansion tank.
[0015] The utility model also provides a vehicle, which comprises:
[0016] A vehicle body;
[0017] A battery arranged in the vehicle body;
[0018] A drive assembly arranged in the vehicle body, and electrically connected with the battery;
[0019] A heat exchange system arranged in the vehicle body, wherein the heat exchange system is the heat exchange system described above, and the heat exchange system is used to exchange heat with the battery and the drive assembly.
[0020] In the technical scheme of the utility model, the expansion tank is provided with two expansion cavities, and the two expansion cavities are connected with the first heat exchange circuit and the second heat exchange circuit respectively, so that the expansion tank can simultaneously supplement heat exchange medium for the two heat exchange circuits; in addition, a drive pump with two flow channels is arranged in cooperation, and the heat exchange medium in the first heat exchange circuit and the second heat exchange circuit is driven to flow simultaneously by the drive pump; compared with the traditional scheme of arranging multiple single expansion tanks in cooperation with single water pumps, the number of parts of the vehicle cooling system is reduced, the structure is simplified, space is saved, and the arrangement on the vehicle body is more flexible. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained from the structures shown in the drawings without creative labor for those skilled in the art.
[0022] Figure 1 The structure diagram of the heat exchange system provided by the utility model is shown.
[0023] Figure 2 The structure schematic diagram of the expansion tank in the heat exchange system is provided by the utility model;
[0024] Figure 3 For Figure 2 The structure schematic diagram of the expansion tank in the heat exchange system is provided by the utility model;
[0025] Figure 4 For Figure 2 The structure schematic diagram of the expansion tank in the heat exchange system is provided by the utility model.
[0026] Brief Description of the Drawings:
[0027] 10, first heat exchange circuit;20, second heat exchange circuit;30, degassing pipeline;100, expansion tank;110, expansion chamber;120, partition;130, notch;140, filling port;150, buffer plate;160, supplement port;170, degassing port;180, reinforcing rib;200, drive pump.
[0028] The utility model discloses the realization, functional characteristics and advantages will be further described with reference to the embodiment, the attached drawing. Specific Implementation
[0029] The technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment, and obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of the utility model protection.
[0030] It should be noted that if the embodiment of the utility model has involved directionality indication (such as up, down, left, right, front, back, …), then the directionality indication is only used to explain the relative position relationship, movement condition and the like between the components in a certain specific posture, if the specific posture changes, then the directionality indication also changes accordingly.
[0031] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.
[0032] In order to simplify the traditional pure electric liquid cooling vehicle cooling system, the utility model provides a heat exchange system, comprising:
[0033] Expansion tank 100, inside being equipped with two independent expansion chambers 110, one of two expansion chambers 110 is connected with first heat exchange circuit 10, another of two expansion chambers 110 is connected with second heat exchange circuit 20, and
[0034] Drive pump 200, drive pump 200 has two flow channels independent of each other, one of two flow channels is communicated with first heat exchange circuit 10 to drive heat exchange medium to flow in first heat exchange circuit 10, and another of two flow channels is communicated with second heat exchange circuit 20 to drive heat exchange medium to flow in second heat exchange circuit 20.
[0035] In the technical scheme of the utility model, expansion tank 100 is provided with two expansion chambers 110, and two expansion chambers 110 are connected with first heat exchange circuit 10 and second heat exchange circuit 20 respectively, so that expansion tank 100 can supplement heat exchange medium for two heat exchange circuits at the same time. In addition, drive pump 200 with two flow channels is arranged, and heat exchange medium in first heat exchange circuit 10 and second heat exchange circuit 20 is driven to flow at the same time by the drive pump 200. Compared with the scheme that a plurality of single expansion tanks 100 are arranged to cooperate with a single water pump, the number of parts of the vehicle cooling system is reduced, the structure is simplified, the space is saved, and the arrangement on the vehicle body is more flexible.
[0036] As Figures 1 to 4In an embodiment of the utility model, the shape of the expansion tank 100 can refer to the structure of the existing expansion tank 100, and the difference between the existing expansion tank 100 is that two independent expansion chambers 110 are arranged in the expansion tank 100 in the scheme, both of which are used to store cooling liquid and other heat exchange media, one of the two expansion chambers 110 is communicated with the first heat exchange circuit 10, and the other is communicated with the second heat exchange circuit 20. In this embodiment, the first heat exchange circuit 10 can be a circuit for cooling the battery, and the second heat exchange circuit 20 can be a circuit for cooling the electric drive system such as the drive motor. In addition, the two expansion chambers 110 can store the cooling liquid overflowing from the first heat exchange circuit 10 and the second heat exchange circuit 20, and can also supplement the cooling liquid when it is lacking in the first heat exchange circuit 10 and the second heat exchange circuit 20. In addition, the expansion tank 100 can also be provided with a degassing valve to remove air in the first heat exchange circuit 10 and the second heat exchange circuit 20. In addition, the drive pump 200 is also an integrated device, which contains two independent flow channels inside. A motor can be arranged in the drive pump 200 to simultaneously drive two impellers to rotate. The two impellers are arranged in the two flow channels respectively to drive the heat exchange medium in the two flow channels to flow. One of the two flow channels is communicated with the first heat exchange circuit 10, and the other is communicated with the second heat exchange circuit 20. In this way, the heat exchange medium in the first heat exchange circuit 10 and the second heat exchange circuit 20 can flow simultaneously through one drive pump 200, which can reduce the energy consumption of the heat exchange system and prolong the endurance of the vehicle compared with using multiple drive pumps 200. In addition, the above scheme integrates the expansion tank 100 and the drive pump 200, which greatly reduces the structural complexity of the cooling system, reduces the number of parts, and is more convenient for arranging the heat exchange system on the vehicle body.
[0037] As Figure 3 In an embodiment of the utility model, a partition 120 is arranged in the expansion tank 100, which divides the expansion tank 100 into two expansion chambers 110. A notch 130 is arranged on the side of the partition 120 away from the ground, and the two expansion chambers 110 are communicated through the notch 130. Under normal working conditions, the liquid level of the heat exchange medium in the two expansion chambers 110 is lower than the notch 130. When extreme heat dissipation conditions (such as high temperature environment or high load operation) are encountered, the heat exchange medium in one of the cooling circuits may expand due to temperature rise. At this time, if the expansion volume exceeds the capacity limit of a single expansion chamber 110, the heat exchange medium can flow to the other expansion chamber 110 through the notch 130 on the partition 120 to release pressure. Compared with the scheme of arranging two separate expansion tanks 100, the above structure can reduce the pressure of the expansion tank 100 under extreme heat dissipation conditions, prevent the heat exchange medium from filling the expansion tank 100, and also reduce the working pressure of the drive pump 200 under this working condition, which is beneficial to reduce energy consumption.
[0038] In an embodiment of the present application, the inside of the partition plate 120 is hollow, that is, a cavity is arranged inside the partition plate 120, so that the heat transfer between the two expansion chambers 110 is blocked, the temperature of the heat exchange medium in the two expansion chambers 110 is not affected, and the independence between the first heat exchange circuit 10 and the second heat exchange circuit 20 is ensured.
[0039] As Figure 3 In an embodiment of the present application, the partition plate 120 is arranged in the middle of the expansion tank 100 to divide two expansion chambers 110 with the same volume, and the expansion tank 100 is further provided with a filling port 140, which is arranged close to the notch 130. In this way, when assembling, the first heat exchange circuit 10 and the second heat exchange circuit 20 can be communicated with any expansion chamber 110, which facilitates the assembly. In addition, in the present application, the filling port 140 can be arranged directly above the notch 130, so that when filling, the end of the filling gun is arranged as a tee joint, one interface of the tee joint is connected with the filling gun, and the other two interfaces can extend towards the two expansion chambers 110 across the notch 130, so that synchronous filling of the two expansion chambers 110 is realized, which is conducive to shortening the filling time.
[0040] As Figure 3 And Figure 4 In an embodiment of the present application, the expansion tank 100 is further provided with a buffer plate 150, at least one buffer plate 150 is arranged in each expansion chamber 110, the buffer plate 150 divides the expansion chamber 110 into a plurality of sub-chambers, the plurality of sub-chambers are arranged side by side along the length direction of the vehicle, and overflow holes are arranged on the buffer plate 150, which communicate the plurality of sub-chambers. Because the buffer plate 150 can divide the heat exchange medium in the expansion tank 100 into multiple parts, the impact force of the heat exchange medium can be dispersed into multiple sub-chambers under the conditions of vehicle acceleration or deceleration, so that the direct impact on the side wall of the expansion tank 100 is significantly reduced, which not only helps to reduce noise, but also effectively prevents the heat exchange medium from generating bubbles or other property changes due to violent shaking, further improving the stability and reliability of the system.
[0041] As Figure 3 In an embodiment of the present application, the expansion tank 100 is further provided with a supplement port 160, each expansion chamber 110 is correspondingly communicated with one supplement port 160, and the two supplement ports 160 are arranged at the two ends of the expansion tank 100 along the length direction of the vehicle. Because the positions of the expansion chambers 110 communicated by the two supplement ports 160 are far apart, the heat exchange medium entering and exiting the supplement port 160 can be better isolated, the influence of one expansion chamber 110 on the temperature of the other expansion chamber 110 is reduced, the heat transfer between them is avoided, and the independence of the first heat exchange circuit 10 and the second heat exchange circuit 20 is ensured, which helps to maintain the stability of the temperature of the heat exchange medium in each expansion chamber 110, and improves the performance and reliability of the entire system.
[0042] As Figure 1 In an embodiment of the present application, the heat exchange system further comprises a gas removal pipeline 30, and the first heat exchange circuit 10 and the second heat exchange circuit 20 are both communicated with the expansion tank 100 through the gas removal pipeline 30. The gas in the first heat exchange circuit 10 and the second heat exchange circuit 20 is discharged through the expansion tank 100, which realizes the integration of functions, is also conducive to reducing the complexity of the structure of the heat exchange system, and provides more possibilities for the optimization of the space inside the vehicle.
[0043] As Figure 2 And Figure 3 In an embodiment of the present application, the expansion tank 100 is further provided with a gas removal port 170, each expansion chamber 110 is communicated with one gas removal port 170, and the two gas removal ports 170 are both communicated with the gas removal pipeline 30. This design enables the gas in the first heat exchange circuit 10 and the second heat exchange circuit 20 to enter the gas removal port 170 through the respective corresponding gas removal pipeline 30 and finally be discharged into the expansion tank 100, which realizes the integration of functions, and by providing two gas removal ports 170, the expansion tank 100 is not only suitable for the heat exchange system of the present application, but also suitable for the traditional heat exchange system using a split type expansion tank 100, thereby improving the versatility of the expansion tank 100.
[0044] As Figure 1 In an embodiment of the present application, the outer wall of the expansion tank 100 is provided with a reinforcing rib 180, and the reinforcing rib 180 extends along the circumference of the expansion tank 100. The reinforcing rib 180 can be arranged at the middle part of the height direction of the expansion tank 100 and surround the outer wall of the expansion tank 100. In this way, the structural strength of the middle part of the expansion tank 100 can be improved, and the reliability of the use of the expansion tank 100 is further ensured.
[0045] The present application also provides a vehicle, which comprises a vehicle body, a battery and a drive assembly arranged on the vehicle body, the drive assembly is electrically connected with the battery, the battery provides working power for the drive assembly, and a heat exchange system is further arranged on the vehicle body, the heat exchange system dissipates heat for the battery and the drive assembly. The specific structure of the heat exchange system is referred to the above embodiments. Since the vehicle adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.
[0046] The above is only an exemplary embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation made by referring to the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.
Claims
1. A heat exchange system, characterized by, The expansion tank comprises: two expansion chambers in the expansion tank, one of the two expansion chambers is communicated with the first heat exchange circuit, and the other of the two expansion chambers is communicated with the second heat exchange circuit; and a driving pump, the driving pump has two flow channels independent of each other, one of the two flow channels is communicated with the first heat exchange circuit to drive the heat exchange medium to flow in the first heat exchange circuit, and the other of the two flow channels is communicated with the second heat exchange circuit to drive the heat exchange medium to flow in the second heat exchange circuit.
2. The heat exchange system of claim 1, wherein, The expansion tank is provided with a partition plate, the partition plate divides the expansion tank into the two expansion chambers, and a notch is arranged on the side of the partition plate away from the ground, and the two expansion chambers are communicated through the notch.
3. The heat exchange system of claim 2, wherein, The partition plate is hollow.
4. The heat exchange system of claim 2, wherein, The partition plate is arranged in the middle of the expansion tank to divide the two expansion chambers with the same volume, and the expansion tank is further provided with a filling port, and the filling port is arranged close to the notch.
5. The heat exchange system of claim 1, wherein, The expansion tank is further provided with a buffer plate, at least one buffer plate is arranged in each expansion chamber, the buffer plate divides the expansion chamber into a plurality of sub-chambers, the plurality of sub-chambers are arranged side by side along the length direction of the vehicle, and an overflow hole is arranged on the buffer plate, and the overflow hole communicates the plurality of sub-chambers.
6. The heat exchange system of claim 5, wherein, The expansion tank is further provided with a supplement port, one supplement port is communicated with each expansion chamber, and the two supplement ports are arranged at the two ends of the expansion tank along the length direction of the vehicle.
7. The heat exchange system of claim 1, wherein, The heat exchange system further comprises a degassing pipeline, and the first heat exchange circuit and the second heat exchange circuit are both communicated with the expansion tank through the degassing pipeline.
8. The heat exchange system of claim 7, wherein, The expansion tank is further provided with a degassing port, one degassing port is communicated with each expansion chamber, and the two degassing ports are both communicated with the degassing pipeline.
9. The heat exchange system of claim 1, wherein, The outer wall of the expansion tank is provided with a reinforcing rib, and the reinforcing rib extends along the circumference of the expansion tank.
10. A vehicle characterized by comprising: The vehicle body; The battery is arranged in the vehicle body; The driving assembly is arranged in the vehicle body, and the driving assembly is electrically connected with the battery; The heat exchange system is arranged in the vehicle body, the heat exchange system is the heat exchange system according to any one of claims 1 to 9, and the heat exchange system is used for heat exchange with the battery and the driving assembly.