Manifold assembly, heat management integration module and electric vehicle

Abstract

The embodiment of the utility model provides a manifold assembly, a heat management integration module and an electric vehicle. The manifold assembly includes a manifold body and a divider. The manifold body has a first flow passage, a second flow passage, and a first communication flow passage. And the first flow channel is communicated with a first liquid pump and a motor in the heat management integrated module to jointly form a motor loop flow channel for circulation of a cooling medium. And the second flow channel is communicated with a second liquid pump and a battery in the thermal management integrated module to jointly form a battery loop flow channel for circulation of the cooling medium. The first communicating flow channel communicates with the first flow channel and the second flow channel. The separator is arranged in the first communication flow channel. The partition piece is constructed to block communication of the first flow channel and the second flow channel in the first communication flow channel, and a cooling medium can pass through the partition piece. According to the manifold assembly, the energy loss caused by heat channeling between cooling media between the loop runners can be reduced, and therefore the situation that the heat exchange performance of a whole vehicle is affected due to the fact that the energy loss is too large is avoided.

Description

Technical Field

[0001] This application relates to the field of thermal management technology for electric vehicles, and in particular to a manifold assembly, a thermal management integrated module, and an electric vehicle. Background Technology

[0002] Currently, electric vehicles typically incorporate a thermal management integrated module. This module usually contains multiple flow channels, including motor flow channels, battery flow channels, and heating flow channels. Cooling medium flows through the motor flow channel to dissipate heat from the motor. Cooling medium flows through the battery flow channel to dissipate heat from the battery. Cooling medium, after being heated in the heating flow channel, can then heat the battery. To achieve the desired operating mode of the vehicle's thermal management system, the cooling medium in each flow channel circulates between them. However, this results in significant energy loss. Summary of the Invention

[0003] This application provides a manifold assembly, a thermal management integrated module, and an electric vehicle. The manifold assembly can reduce energy loss caused by heat transfer between cooling media in the loop channels, thereby avoiding excessive energy loss that could affect the heat exchange performance of the entire vehicle.

[0004] In a first aspect, embodiments of this application provide a manifold assembly applied to a thermal management integrated module in an automobile. The manifold assembly includes a manifold body having multiple flow channels, the multiple flow channels including:

[0005] The first flow channel is configured to connect with the first liquid pump and motor in the thermal management integrated module, and together with the first liquid pump and motor, form a motor loop flow channel for the flow of cooling medium.

[0006] The second flow channel is configured to connect with the second liquid pump and battery in the thermal management integrated module, and together with the second liquid pump and battery, form a battery loop flow channel for the flow of cooling medium.

[0007] A first connecting channel is provided between the first channel and the second channel to connect the first channel and the second channel;

[0008] The manifold assembly also includes a separator disposed within the first connecting channel; the separator is configured to block the connection between the first channel and the second channel within the first connecting channel, while allowing the cooling medium to pass through.

[0009] The manifold assembly provided in this embodiment includes a first flow channel, a second flow channel, and a first connecting flow channel, which connects the first and second flow channels. The first flow channel, together with the first liquid pump and the motor in the thermal management integrated module, forms a motor circuit flow channel for the flow of cooling medium, allowing the cooling medium to dissipate heat from the motor as it flows within the motor circuit flow channel. Similarly, the second flow channel, together with the second liquid pump and the battery in the thermal management integrated module, forms a battery circuit flow channel for the flow of cooling medium, allowing the cooling medium to dissipate heat from the battery as it flows within the battery circuit flow channel. Furthermore, by providing a separator within the first connecting flow channel, while ensuring that the cooling medium in both the motor and battery circuit flow channels can pass through the separator and flow within the first connecting flow channel, the flow resistance of the cooling medium in the first connecting flow channel is increased, and the flow rate of the cooling medium in both the motor and battery circuit flow channels is reduced. This reduces energy loss caused by heat transfer between the cooling medium in the motor and battery circuit flow channels, thereby preventing excessive energy loss from affecting the overall heat exchange performance of the vehicle.

[0010] In some embodiments, along the flow direction of the cooling medium in the first communicating channel, the distance between the separator and the first channel is greater than the distance between the separator and the second channel.

[0011] In some embodiments, along the flow direction of the cooling medium in the first connecting channel, the total length of the first connecting channel is L1, and the distance between the separator and the first channel is L2. L1 and L2 satisfy the following relationship:

[0012] .

[0013] In some embodiments, the separator has a through-hole that connects the first flow channel and the second flow channel.

[0014] In some embodiments, the opening area of ​​the through-hole is greater than or equal to one-third of the flow area of ​​the first connecting channel, and less than or equal to two-thirds of the flow area of ​​the first connecting channel.

[0015] In some embodiments, the thickness of the separator is greater than or equal to 2 mm and less than or equal to 3.5 mm along the flow direction of the cooling medium in the first connecting channel.

[0016] In some embodiments, the manifold body includes a first body and a second body, which are connected to each other and together form a first flow channel, a second flow channel and a first connecting flow channel;

[0017] The separator has a first dividing part and a second dividing part. The first dividing part is located on the inner wall of the first body opposite to the first communicating channel and has a first notch. The second dividing part is located on the inner wall of the second body opposite to the first communicating channel and has a second notch.

[0018] When the first body and the second body are connected to each other, the first gap and the second gap are joined to form a through opening.

[0019] In some embodiments, the first connecting channel has a limiting groove, and the separator is engaged in the limiting groove.

[0020] In some embodiments, the second flow channel has a fifth connection port, a sixth connection port, and an eighth connection port, the fifth connection port being configured to communicate with a second liquid pump, the sixth connection port being configured to communicate with a battery; the second liquid pump and the battery are interconnected; the eighth connection port is located between the fifth connection port and the sixth connection port;

[0021] Multiple flow channels also include:

[0022] The third flow channel has a ninth connection port and a tenth connection port. The ninth connection port is configured to connect with the third liquid pump in the thermal management integrated module, and the tenth connection port is configured to connect with the heating device in the thermal management integrated module. It can also selectively connect with the sixth connection port. The third liquid pump and the heating device are interconnected, and the third flow channel together with the third liquid pump and the heating device form a heating circuit flow channel for the flow of cooling medium.

[0023] The second connecting channel is located between the second and third channels to connect the eighth and tenth connecting ports.

[0024] In some embodiments, the flow area of ​​the second connecting channel is smaller than the flow area of ​​at least one of the second and third channels.

[0025] In some embodiments, the flow area of ​​the second connecting channel is greater than or equal to one-third of the flow area of ​​the second channel, and less than or equal to two-thirds of the flow area of ​​the second channel; and / or,

[0026] The flow area of ​​the second connecting channel is greater than or equal to one-third of the flow area of ​​the third channel, and less than or equal to two-thirds of the flow area of ​​the third channel.

[0027] In some embodiments, the second connecting channel is a bent channel.

[0028] In some embodiments, the length of the second connecting channel is greater than or equal to 30 mm and less than or equal to 200 mm.

[0029] Secondly, this application embodiment also provides a thermal management integrated module, which includes a first liquid pump, a second liquid pump, a motor, a battery, and a manifold assembly as described above. The manifold assembly has a first flow channel and a second flow channel. The first flow channel is connected to the first liquid pump and the motor, and together with the first liquid pump and the motor, forms a motor circuit flow channel for the flow of cooling medium.

[0030] The first flow channel is connected to the second liquid pump and the battery, and together with the second liquid pump and the battery, they form a battery circuit flow channel for the circulation of cooling medium.

[0031] Thirdly, embodiments of this application also provide an electric vehicle, which includes the aforementioned thermal management integrated module.

[0032] The thermal management integrated module and electric vehicle of the present application embodiment have the beneficial effects of the above-mentioned manifold assembly, which will not be repeated here. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of a manifold assembly provided in an embodiment of this application;

[0035] Figure 2 A schematic diagram illustrating the working principle of a thermal management integrated module in operating condition one, provided in an embodiment of this application.

[0036] Figure 3 A schematic diagram of the flow direction of the cooling medium in a manifold assembly under operating condition one, provided for an embodiment of this application;

[0037] Figure 4 for Figure 2 A partial view of the integrated thermal management module;

[0038] Figure 5 This application provides an internal schematic diagram of a manifold assembly at the first connecting channel, as shown in an embodiment of the present application.

[0039] Figure 6 The working principle of a thermal management integrated module provided in this application embodiment under operating condition two mode Figure 1 ;

[0040] Figure 7 A schematic diagram of the flow direction of the cooling medium in a manifold assembly under operating condition two, provided for an embodiment of this application;

[0041] Figure 8 The working principle of a thermal management integrated module provided in this application embodiment under operating condition two mode Figure 2 .

[0042] Figure label:

[0043] 100-Manifold assembly;

[0044] 1-Manifold body; 1a-First body; 1b-Second body;

[0045] 11-First flow channel; 11a-First sub-flow channel; 11b-Second sub-flow channel; 111-First connecting port; 112-Second connecting port; 113-Third connecting port;

[0046] 12-Second flow channel; 121-Fourth connecting port; 122-Fifth connecting port; 123-Sixth connecting port; 124-Seventh connecting port; 125-Eighth connecting port;

[0047] 13 - First connecting channel;

[0048] 14-Third flow channel; 141-Ninth connecting port; 142-Tenth connecting port;

[0049] 15 - Second connecting channel;

[0050] 2-Separator; 21-Through opening; 22-First partition; 23-Second partition;

[0051] 200 - Motor;

[0052] 300 - First liquid pump;

[0053] 400-battery;

[0054] 500 - Second liquid pump;

[0055] 600 - Heating device;

[0056] 700 - Third liquid pump;

[0057] 800 - First valve body;

[0058] 900 - Second valve body. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0060] With the continuous development of technology, people have put forward higher requirements for the thermal management system of electric vehicles. Currently, thermal management systems typically include an integrated thermal management module. By incorporating this module, the number of pipes required for the electric vehicle's thermal management system can be significantly reduced, thus lowering the failure rate of the system.

[0061] A thermal management integrated module typically includes a manifold, multiple liquid pumps, a motor, a battery, and a heating device. For example, the liquid pumps can be water pumps, and the heating device can be a heater core or other device capable of heating the cooling medium. The manifold has multiple channels. Some channels within the manifold can connect to parts of the motor and multiple liquid pumps, forming a motor circuit flow path. The cooling medium supplied by the reservoir in the electric vehicle can circulate within the motor circuit flow path to dissipate heat from the motor, enabling the thermal management system to manage the vehicle's thermal performance. The cooling medium can be coolant. The specific type of coolant can be determined based on existing electric vehicle thermal management integrated modules and is not limited in this embodiment.

[0062] Some channels within the manifold can also connect to the battery and parts of the multiple liquid pumps, forming a battery circuit flow path. The cooling medium supplied by the reservoir in the electric vehicle can also circulate within the battery circuit flow path to dissipate heat from the battery, thus achieving thermal management of the electric vehicle. The manifold can also connect to the heating device and parts of the multiple liquid pumps, forming a heating circuit flow path, so that the cooling medium is heated within the heating circuit flow path and then used to heat the battery.

[0063] The thermal management integrated module has multiple loop channels, each with a different temperature of the cooling medium. To achieve the operating mode of the automotive thermal management system, the cooling medium must flow between these loop channels. However, this results in significant energy loss.

[0064] For example, the motor circuit flow channel and the battery circuit flow channel are part of the thermal management integrated module's circuit flow channels. The temperature of the cooling medium in the motor circuit flow channel and the battery circuit flow channel is different, and the cooling medium in the motor circuit flow channel and the battery circuit flow channel will also flow between each other.

[0065] Because the temperature of the cooling medium in the motor circuit is usually higher than that in the battery circuit, when the cooling media in the motor circuit and the battery circuit flow together, a "heat transfer" phenomenon occurs. The higher-temperature cooling medium loses "heat," and the lower-temperature cooling medium loses "cooling," resulting in excessive energy loss during the mutual flow of the cooling media in the motor circuit and the battery circuit. This affects the efficiency of the electric vehicle's thermal management and reduces the overall heat exchange performance of the vehicle.

[0066] For this reason, see Figure 1 and Figure 2 This application provides a manifold assembly 100, which can be applied to a thermal management integrated module in an electric vehicle. By providing a separator 2 in the manifold assembly 100, energy loss caused by heat transfer between the cooling media in the motor circuit and the battery circuit can be reduced. Alternatively, by providing a second connecting channel 15 in the manifold assembly 100, the location where heat transfer occurs in the heating circuit and the battery circuit can be transferred to the second connecting channel 15, thereby reducing energy loss caused by heat transfer between the cooling media in the heating circuit and the battery circuit. Therefore, by providing at least one of the separator 2 and the second connecting channel 15, this application can reduce energy loss caused by the mutual flow of cooling media in each circuit, thereby avoiding excessive energy loss that could affect the overall heat exchange performance of the vehicle.

[0067] The structure of the manifold assembly 100 of this application will be further described below with reference to the accompanying drawings.

[0068] See Figure 1 The manifold assembly 100 includes a manifold body 1, which has multiple flow channels, including a first flow channel 11, a second flow channel 12, and a first connecting flow channel 13.

[0069] See Figure 1 and Figure 2 The first flow channel 11 is configured to communicate with the first liquid pump 300 and the motor 200 in the thermal management integrated module, and together with the first liquid pump 300 and the motor 200, form a motor circuit flow channel for the flow of cooling medium, so that the cooling medium can dissipate heat to the motor 200 when it flows in the motor circuit flow channel, so that the thermal management system can realize thermal management of the vehicle.

[0070] The second flow channel 12 is configured to communicate with the second liquid pump 500 and the battery 400 in the thermal management integrated module, and together with the second liquid pump 500 and the battery 400, form a battery circuit flow channel for the flow of cooling medium, so that the cooling medium can dissipate heat to the battery 400 when it flows in the battery circuit flow channel, so that the thermal management system can realize thermal management of the vehicle.

[0071] A first connecting channel 13 is disposed between the first channel 11 and the second channel 12 to connect the first channel 11 and the second channel 12. The first connecting channel 13 enables the connection between the first channel 11 and the second channel 12. This allows the cooling media in the motor circuit channel and the battery circuit channel to circulate and converge within the first connecting channel 13. The first connecting channel 13 can also be understood as the confluence channel between the first channel 11 and the second channel 12. The flow area of ​​the first connecting channel 13 is smaller than the flow area of ​​the first channel 11 and the flow area of ​​the second channel 12.

[0072] It should be noted that the flow area of ​​the flow channel refers to the area of ​​the flow channel through which the cooling medium can pass. For example, the flow area of ​​the first connecting flow channel 13 refers to the area within the first connecting flow channel 13 through which the cooling medium can pass. The flow area of ​​the first flow channel 11 and the flow area of ​​the second flow channel 12 can be understood similarly. In the embodiments of this application, any similar descriptions can be understood in this way, and will not be repeated in the embodiments of this application.

[0073] The manifold assembly 100 also includes a separator 2 disposed within the first connecting channel 13. The separator 2 is configured to block the communication between the first channel 11 and the second channel 12 within the first connecting channel 13, while allowing the cooling medium to pass through. By providing the separator 2 within the first connecting channel 13, the manifold assembly 100 of this embodiment ensures that the cooling medium in the motor circuit channel and the battery circuit channel can pass through the separator 2 and circulate within the first connecting channel 13. Simultaneously, compared to a manifold assembly 100 without the separator 2 within the first connecting channel 13, the separator 2 increases the flow resistance of the cooling medium within the first connecting channel 13. This reduces the flow rate of the cooling medium in the motor circuit channel and the battery circuit channel when they flow into each other within the first connecting channel 13, thus reducing the degree of "heat leakage" within the first connecting channel 13 and consequently reducing energy loss caused by heat leakage between the cooling media in the motor circuit channel and the battery circuit channel.

[0074] See Figure 1 and Figure 2To achieve communication between the first flow channel 11 and the first liquid pump 300 and the motor 200, the first flow channel 11 has a first sub-flow channel 11a and a second sub-flow channel 11b that are connected. One end of the first sub-flow channel 11a has a first connecting port 111, and the other two ends have second connecting ports 112. The second connecting port 112 is connected to one end of the first connecting flow channel 13. One end of the second sub-flow channel 11b is connected to the first sub-flow channel 11a at a position between the first connecting port 111 and the second connecting port 112. The other end of the second sub-flow channel 11b has a third connecting port 113, which connects to the first connecting port 111, and the first liquid pump 300 and the motor 200 are connected. The first connecting port 111 is configured to communicate with the first liquid pump 300, and the third connecting port 113 is configured to communicate with the motor 200. Furthermore, the first liquid pump 300 and the motor 200 are interconnected. This enables the first flow channel 11 to connect with the first liquid pump 300 and the motor 200, so that the first flow channel 11, the first liquid pump 300 and the motor 200 together form the motor circuit flow channel.

[0075] For example, the thermal management integrated module also includes a first valve body 800. A third connection port 113 can be connected to a first liquid pump 300 through the first valve body 800. In this case, the first liquid pump 300, the motor 200, and the first valve body 800 are connected between the first connection port 111 and the third connection port 113. The first valve body 800 forms part of the motor circuit flow path. The first valve body 800, the first liquid pump 300, and the motor 200 are connected between the third connection port 113 and the first connection port 111.

[0076] It should be understood that, Figure 2 The first valve body 800 shown is a four-way valve with four ports, which can be represented by port a, port b, port c, and port d, respectively. Any two of these four ports can be connected. The thermal management integrated module also includes the first valve body 800. The flow direction of the cooling medium in the motor circuit channel can be controlled through the first valve body 800. For example, ports c and b in the first valve body 800 can be connected between the third connection port 113 and the first connection port 111. When the cooling medium needs to flow in the motor circuit channel, ports c and b in the first valve body 800 can be connected.

[0077] Figure 2 This does not constitute a limitation on the structure of the first valve body 800. For example, while ensuring the connection between the motor circuit flow channel and other structures within the electric vehicle, the number of interfaces of the first valve body 800 can be less than or greater than four. This paper uses a four-way valve as an example of the first valve body 800 to further illustrate the structure of the thermal management integrated module.

[0078] After the cooling medium in the motor circuit channel dissipates heat from the motor 200, it can be dissipated through an additional heat dissipation device to achieve circulating heat dissipation of the motor 200 by the cooling medium.

[0079] See Figure 1 and Figure 2 To achieve communication between the second flow channel 12 and the second liquid pump 500 and the battery 400, the second flow channel 12 has a fourth connection port 121, a fifth connection port 122, and a sixth connection port 123. One end of the first sub-flow channel 11a has a first connection port 111, and the other two ends have second connection ports 112. The fourth connection port 121 is connected to the other end of the first connecting flow channel 13. The second liquid pump 500 and the battery 400 can be connected between the fifth connection port 122 and the sixth connection port 123. Specifically, the fifth connection port 122 is configured to communicate with the second liquid pump 500, and the sixth connection port 123 is configured to communicate with the battery 400. Furthermore, the second liquid pump 500 and the battery 400 are interconnected. This enables the second flow channel 12 to communicate with the second liquid pump 500 and the battery 400, so that the second flow channel 12, the second liquid pump 500, and the battery 400 together form a battery circuit flow channel.

[0080] For example, the thermal management integrated module also includes a second valve body 900. A sixth connection port 123 can be connected to the battery 400 through the second valve body 900. At this time, a second liquid pump 500, a battery 400, and a second valve body 900 are connected between the fifth connection port 122 and the sixth connection port 123. The second valve body 900 forms part of the battery circuit flow path.

[0081] It should be understood that, Figure 2 The second valve body 900 shown is a four-way valve with four ports, which can be represented by port a, port b, port c, and port d. Any two of these four ports can be connected. The flow direction of the cooling medium in the battery circuit channel can be controlled through the second valve body 900. For example, ports a and d in the second valve body 900 can be connected between the fifth connection port 122 and the sixth connection port 123. When the cooling medium needs to flow in the battery circuit channel, ports a and d in the second valve body 900 can be connected.

[0082] Figure 2 This does not constitute a limitation on the structure of the first valve body 800. For example, while ensuring the connection between the battery circuit flow channel and other structures within the electric vehicle, the number of interfaces of the second valve body 900 can be less than or greater than four. This paper uses a four-way valve as an example of the second valve body 900 to further illustrate the structure of the thermal management integrated module.

[0083] See Figure 2In some embodiments, the thermal management integrated module further includes a heat exchange device. For example, the heat exchange device can be a heat exchanger, etc. The second flow channel 12 may also have a seventh connection port 124, which can be connected to one end of the heat exchange device, and the other end of the heat exchange device can be connected through the interface b of the second valve body 900. In this way, after the cooling medium in the battery circuit flow channel dissipates heat to the battery 400, it can be cooled by heat exchange through the heat exchange device, and then continue to enter the battery circuit flow channel again through the interfaces b and d of the second valve body 900, realizing the circulating heat dissipation of the cooling medium to the battery 400.

[0084] See Figure 3 In some embodiments, when the electric vehicle is in operating mode 1, the battery circuit flow channel and the motor circuit flow channel activate a self-circulation mode. As an example, the temperature of the motor circuit flow channel is set at 50°C, and the temperature of the battery circuit flow channel is set at 20°C.

[0085] In operating mode 1, the first connection port 111 of the electric vehicle can be considered as the cooling medium inlet of the first flow channel 11. The coolant temperature at the first connection port 111 is 50°C. The second connection port 112 and the third connection port 113 can both be considered as the cooling medium outlets of the first flow channel 11. The cooling medium can enter the first flow channel 11 through the first connection port 111, flow within the first flow channel 11, and exit the first flow channel 11 through the second connection port 112 and the third connection port 113.

[0086] In operating mode 1, the fifth connector 122 can serve as the cooling medium inlet of the second flow channel 12. The coolant temperature at the fifth connector 122 is 20°C. The fourth connector 121, the sixth connector 123, and the seventh connector 124 can all be considered as cooling medium outlets of the second flow channel 12. The cooling medium can enter the second flow channel 12 through the fifth connector 122 and flow out of the second flow channel 12 through the fourth connector 121, the sixth connector 123, and the seventh connector 124.

[0087] When the cooling medium in the first flow channel 11 and the second flow channel 12 flows to each other in the first connecting channel, the separator 2 will hinder the flow of the cooling medium in the first connecting channel 13, so as to reduce the flow rate of the cooling medium in the motor circuit flow channel and the battery circuit flow channel when they flow to each other in the first connecting channel 13, reduce the degree of heat leakage caused by temperature difference when the cooling medium in the first flow channel 11 and the second flow channel 12 flows to each other in the first connecting channel, thereby reducing the energy loss caused by heat leakage between the cooling medium in the motor circuit flow channel and the battery circuit flow channel.

[0088] It should be understood that when the cooling medium in the second flow channel 12 enters the first flow channel 11 through the second connecting port 112, the second connecting port 112 can be regarded as the cooling medium inlet of the first flow channel 11. When the cooling medium in the first flow channel 11 enters the second flow channel 12 through the fourth connecting port 121, the fourth connecting port 121 can be regarded as the cooling medium inlet of the second flow channel 12.

[0089] See Figure 4 Along the flow direction of the cooling medium in the first connecting channel 13, the distance between the partition 2 and the first channel 11 is greater than the distance between the partition 2 and the second channel 12, so that the partition 2 is offset towards the side closer to the first channel 11 in the first connecting channel 13, making the partition 2 closer to the first channel 11.

[0090] Because the temperature of the cooling medium in the first flow channel 11 is relatively high, when the separator 2 is set closer to the first flow channel 11, it can prevent more cooling medium in the first flow channel 11 from merging with the cooling medium in the second flow channel 12 through the separator 2. This can further reduce the degree of heat leakage between the cooling medium in the motor circuit flow channel and the battery circuit flow channel, and effectively reduce the heat loss between the motor circuit flow channel and the battery circuit flow channel.

[0091] See Figure 4 In some embodiments, along the flow direction of the cooling medium in the first connecting channel 13, the total length of the first connecting channel 13 is L1, and the distance between the partition 2 and the first channel 11 is L2. L2 refers to the distance between the side of the partition 2 facing the first channel 11 and the end face of the first channel 11 where the second connecting port 112 is provided, along the flow direction of the cooling medium in the first connecting channel 13.

[0092] L1 and L2 satisfy the following relationship:

[0093] In other words, L2 can... and The value of L2 can be any value between these ranges. In this embodiment, the possible values ​​of L2 are not further listed. This configuration allows the separator 2 to shift towards the side closer to the first connecting end within the first connecting channel 13.

[0094] See Figure 5 In some embodiments, the separator 2 can be made of a material resistant to corrosion by the cooling medium. The material used for the separator 2 varies depending on the cooling medium, and will not be elaborated further in this embodiment. For example, the separator 2 can be a baffle or a partition plate, etc.

[0095] The separator 2 has a through-hole 21, which connects the first flow channel 11 and the second flow channel 12. The through-hole 21 allows the cooling medium to pass through the separator 2, thereby enabling mutual flow of the cooling medium between the motor circuit flow channel and the battery circuit flow channel.

[0096] In some embodiments, the separator 2 can also be a movable component within the first connecting flow channel 13. For example, the separator 2 can be a one-way valve. When the pressure of the cooling medium on one side of the separator 2 is higher, the separator 2 can be opened on the side of the first connecting flow channel 13 where the pressure of the cooling medium is lower, thus allowing the cooling medium to pass through the separator 2.

[0097] The structure of the manifold assembly 100 will be further described below, taking the separator 2 having a through port 21 as an example.

[0098] The opening area of ​​the through-hole 21 is greater than or equal to one-third of the flow area of ​​the first connecting channel 13, and less than or equal to two-thirds of the flow area of ​​the first connecting channel 13. Assuming the flow area of ​​the first connecting channel 13 is S1, and the opening area of ​​the through-hole 21 is S2, that is, S2 can... and The value of S2 can be any value between these parameters. In this embodiment, the value of S2 is not further listed. With this configuration, the opening area of ​​the through port 21 is smaller than the flow area of ​​the first connecting channel 13, and the opening area of ​​the through port 21 is limited to a suitable range. This allows the cooling medium to pass through the separator 2 while maximizing the flow resistance of the first connecting channel 13 at the separator 2. This further reduces the flow rate of the cooling medium in the motor circuit channel and the battery circuit channel when they flow into each other in the first connecting channel 13, and reduces the degree of heat transfer between the cooling medium in the first channel 11 and the second channel 12 in the first connecting channel.

[0099] When the partition 2 has a through opening 21, the thickness of the partition 2 along the flow direction of the cooling medium in the first connecting channel 13 is greater than or equal to 2 mm and less than or equal to 3.5 mm. That is, the thickness of the partition 2 can be any value between 2 and 3.5 mm. When the partition 2 is a partition plate, the thickness of the partition 2 can be understood as the plate thickness. In this embodiment, the possible values ​​for the thickness of the partition 2 are not further listed. This setting allows the thickness of the partition 2 to be controlled within a suitable range, thus avoiding excessive length occupation of the partition 2 within the first connecting channel while also ensuring good strength of the partition 2, thereby enhancing the structural stability of the partition 2 within the first connecting channel.

[0100] See Figure 5In some embodiments, the manifold body 1 may include a first body 1a and a second body 1b, which are interconnected and together form a first flow channel 11, a second flow channel 12, and a first connecting flow channel 13. The separator 2 has a first separating portion 22 and a second separating portion 23. The first separating portion 22 is located on the inner wall of the first body 1a opposite to the first connecting flow channel 13 and is integrally connected to the first body 1a. The first separating portion 22 has a first notch. For example, the first separating portion 22 may be manufactured using the same mold as the first body 1a so that the first separating portion 22 is integrally connected to the first body 1a.

[0101] The second partition 23 is located on the inner wall of the second body 1b opposite to the first connecting channel 13, and is integrally connected to the second body 1b. The second partition 23 has a second notch. For example, the second partition 23 can be manufactured with the second body 1b using a separate mold so that the second partition 23 is integrally connected to the second body 1b. When the first body 1a and the second body 1b are connected, the first notch and the second notch align to form a through opening 21. The first body 1a and the second body 1b can be understood as two parts formed by dividing the manifold body 1 along a dividing direction. For example, the dividing direction can be... Figure 5 In some examples, the dividing direction can also be other directions that intersect with the X direction. Figure 5 The dashed lines in the diagram represent the dividing lines between the first body 1a and the second body 1b when the manifold body 1 is divided along the X direction. For example... Figure 5 As shown, the part to the left of the dividing line is the first body 1a, and the part to the right of the dividing line is the second body 1b. Figure 5 This is merely an illustration of the dividing line to facilitate understanding of the first body 1a and the second body 1b, and does not constitute a limitation on the specific dividing position.

[0102] The first body 1a and the second body 1b can be connected to each other along the dividing direction and can be connected by at least one of welding, bonding, snap-fitting, and fasteners. For example, fasteners can be screws, bolts, etc.

[0103] In this embodiment, the first partition 22 is integrally connected to the first body 1a, and the second partition 23 is integrally connected to the second body 1b. This is achieved by molding the first partition 22 and the second body 1a together using a mold. When the first body 1a and the second body 1b are connected, a manifold assembly 100 is formed. In other embodiments, the first connecting channel 13 has a limiting groove, and the partition 2 is engaged within the limiting groove. This arrangement also allows for the fixation of the partition 2 within the first connecting channel 13. The partition 2 and the manifold body 1 are two independent structural components and can be manufactured separately.

[0104] Compared to the partition 2 being fixed in the limiting groove, when the first partition 22 is integrally connected to the first body 1a and the second partition 23 is integrally connected to the second body 1b, the difficulty of setting the partition 2 in the first connecting channel 13 can be reduced, and the manufacturing difficulty of the manifold body 1 can be simplified, making the manifold assembly 100 easier to process.

[0105] See Figure 1 and Figure 6 In some embodiments, in addition to the fifth connection port 122 and the sixth connection port 123, the second flow channel 12 also has an eighth connection port 125, which is located between the fifth connection port 122 and the sixth connection port 123.

[0106] The multiple flow channels also include a third flow channel 14. The third flow channel 14 has a ninth connection port 141 and a tenth connection port 142. The ninth connection port 141 is configured to connect to the third liquid pump 700 in the thermal management integrated module. The tenth connection port 142 is configured to connect to the heating device 600 in the thermal management integrated module, and may also selectively connect to the sixth connection port 123. That is, the tenth connection port 142 may or may not connect to the sixth connection port 123.

[0107] The third liquid pump 700 and the heating device 600 are interconnected, and the third flow channel 14, together with the third liquid pump 700 and the heating device 600, forms a heating circuit flow channel for the flow of cooling medium. That is to say, the third liquid pump 700 and the heating device 600 are connected between the ninth connection port 141 and the tenth connection port 142.

[0108] The multiple flow channels also include a second connecting flow channel 15, located between the second flow channel 12 and the third flow channel 14, to connect the eighth connecting port 125 and the tenth connecting port 142. The second connecting flow channel 15 can be understood as the confluence flow channel between the heating circuit flow channel and the battery circuit flow channel.

[0109] See Figure 6 and Figure 7In operating mode two, the electric vehicle's heating circuit and battery circuit flow channels begin their own circulation mode. At this time, the heating device 600 can heat the cooling medium within the heating circuit flow channel, making its temperature higher than the original temperature of the cooling medium in the battery circuit flow channel. For example, the temperature of the cooling medium at the ninth connection port 141 can be 80°C and flow along the heating circuit flow channel, while the temperature of the cooling medium at the fifth connection port 122 can be 20°C and flow along the battery circuit flow channel.

[0110] The existing manifold body is directly connected between the eighth and tenth connecting ports. This allows the cooling media in the heating circuit and battery circuit to circulate between each other when the electric vehicle is operating in Condition 2. Since the cooling media in the battery circuit is typically at a higher temperature, this cross-flow causes heat loss. The higher-temperature cooling media experiences both heat and cold loss, resulting in excessive energy loss during the cross-flow between the motor and battery circuits. This negatively impacts the efficiency of the electric vehicle's thermal management and reduces the overall heat exchange performance. Furthermore, due to spatial constraints in certain modes and the overall vehicle layout, the distance between the motor and battery circuits is often too short, further exacerbating the energy loss during cross-flow.

[0111] This embodiment of the application, by setting the second connecting channel 15, can increase the distance between the battery circuit channel and the heating circuit channel, making the tenth connecting port 142 far away from the fifth connecting port 122, the sixth connecting port 123, and the eighth connecting port 125. This can transfer the location where heat leakage occurs in the heating circuit channel and the battery circuit channel to the second connecting channel 15, thereby reducing the energy loss caused by heat leakage between the cooling media in the heating circuit channel and the battery circuit channel, and thus avoiding excessive energy loss that affects the heat exchange performance of the entire vehicle.

[0112] When the location where heat leakage occurs in the heating circuit flow channel and the battery circuit flow channel is transferred to the second connecting flow channel 15, the heat source in the second connecting flow channel 15 becomes a harmful heat source and is difficult to use for heating the battery 400 in operating mode 2, so as to avoid affecting the normal operation of the battery 400 in cold weather.

[0113] For this reason, see Figure 8Since the tenth connecting port 142 can also be selectively connected to the sixth connecting port 123, when the tenth connecting port 142 of the heating circuit flow channel is connected to the sixth connecting port 123, the cooling medium in the battery circuit flow channel can flow through the sixth connecting port 123 and the tenth connecting port 142 to the heating circuit flow channel for heating, and then flow through the second connecting channel 15 to the battery circuit flow channel to heat the battery 400. This can further avoid energy loss caused by heat leakage between the cooling medium in the heating circuit flow channel and the battery circuit flow channel, thereby avoiding excessive energy loss that affects the heat exchange performance of the whole vehicle.

[0114] See Figure 8 As an example, to achieve selective connection between the tenth connection port 142 and the sixth connection port 123, the tenth connection port 142 can be selectively connected to the sixth connection port 123 via the second valve body 900. The connection state between the tenth connection port 142 and the sixth connection port 123 can be controlled by the second valve body 900. For example, when interfaces a and c in the second valve body 900 are connected, the sixth connection port 123 can be connected to the tenth connection port 142; when the tenth connection port 142 is not connected to the sixth connection port 123, interface a in the second valve body 900 can be connected to interface d.

[0115] In some embodiments, the flow area of ​​the second connecting channel 15 may be smaller than the flow area of ​​at least one of the second channel 12 and the third channel 14. This configuration increases the flow resistance within the second connecting channel 15, reduces the flow rate of the cooling medium when it flows through the second connecting channel 15, and decreases the degree of "heat leakage" within the second connecting channel 15, thereby reducing energy loss due to heat leakage between the cooling media in the heating circuit channel and the battery circuit channel.

[0116] Specifically, the flow area of ​​the second connecting channel 15 can be greater than or equal to one-third of the flow area of ​​the second channel 12, and less than or equal to two-thirds of the flow area of ​​the second channel 12. Assuming the flow area of ​​the second connecting channel 15 is S3, and the flow area of ​​the battery circuit channel is S4, S3 and S4 satisfy the following relationship:

[0117] In other words, S3 can... and The value of S3 can be any value between these ranges. In this embodiment, the values ​​of S3 are not further listed. This configuration allows the flow area of ​​the second connecting channel 15 to be controlled within a suitable range, reducing energy loss caused by heat leakage and preventing the cooling medium from affecting the heating efficiency of the battery 400 due to insufficient flow through the second connecting channel 15.

[0118] The flow area of ​​the second connecting channel 15 is greater than or equal to one-third of the flow area of ​​the third channel 14, and less than or equal to two-thirds of the flow area of ​​the third channel 14. Assuming the flow area of ​​the heating circuit channel is S5, S3 and S5 satisfy the following relationship:

[0119] In other words, S3 can... and The value of S3 can be any value between these ranges. In this embodiment, the values ​​of S3 are not further listed. With this setting, the flow area of ​​the second connecting channel 15 can also be controlled within a suitable range. This reduces energy loss caused by heat leakage and also prevents the cooling medium from affecting the heating efficiency of the battery 400 due to insufficient flow through the second connecting channel 15.

[0120] See Figure 7 In some embodiments, the second connecting channel 15 can be a bent channel. For example, the shape of the second connecting channel 15 should be as curved as possible, such as a "V", "U", "S", or "W" shaped bend. By limiting the shape of the second connecting channel 15, the flow resistance within the second connecting channel 15 can be increased, and the flow rate of the cooling medium when it flows through the second connecting channel 15 can be reduced.

[0121] In some embodiments, the length of the second connecting channel 15 is greater than or equal to 30 mm and less than or equal to 200 mm. This configuration maximizes the distance between the battery circuit channel and the heating circuit channel without affecting the installation of the manifold assembly 100 and the thermal management integrated module in the electric vehicle, thereby reducing the degree of "heat leakage" within the second connecting channel 15.

[0122] Based on the above, this application also provides a thermal management integrated module. The thermal management integrated module includes a first liquid pump 300, a second liquid pump 500, a motor 200, a battery 400, and a manifold assembly 100 as described in any of the above embodiments. The manifold assembly 100 is connected to the remaining parts within the thermal management integrated module to form multiple loop channels. These multiple loop channels include the motor loop channel, battery loop channel, and heating loop channel mentioned above.

[0123] By configuring the manifold assembly 100 in the thermal management integrated module, under the same operating modes of the thermal management system (such as operating mode one and operating mode two), the energy loss caused by heat leakage between the cooling media in each circuit flow channel can be reduced, thereby avoiding excessive energy loss that could affect the heat exchange performance of the entire vehicle. This solves the problem of reduced energy loss caused by "heat leakage" between the high-temperature coolant circuit and the low-temperature coolant circuit.

[0124] This application also provides an electric vehicle, which includes the aforementioned thermal management integrated module. By setting the thermal management integrated module in the electric vehicle, under the same operating mode of the thermal management system (such as operating mode one and operating mode two), excessive energy loss that affects the heat exchange performance of the entire vehicle can be avoided.

[0125] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0126] In the description of this application, it should be understood that the terms “comprising” and “having” as used herein, and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are expressly listed, but may include other steps or units that are not expressly listed or that are inherent to such process, method, product, or apparatus.

[0127] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0128] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A manifold assembly, used in a thermal management integrated module for electric vehicles, characterized in that, The manifold assembly includes a manifold body (1) having a plurality of flow channels, the plurality of flow channels including: The first flow channel (11) is configured to communicate with the first liquid pump (300) and the motor (200) in the thermal management integrated module, and together with the first liquid pump (300) and the motor (200) form a motor loop flow channel for the flow of cooling medium; The second flow channel (12) is configured to communicate with the second liquid pump (500) and the battery (400) in the thermal management integrated module, and together with the second liquid pump (500) and the battery (400) form a battery circuit flow channel for the cooling medium to flow. A first connecting channel (13) is provided between the first channel (11) and the second channel (12) to connect the first channel (11) and the second channel (12); The manifold assembly further includes a separator (2) disposed within the first connecting channel (13); the separator (2) is configured to block the connection between the first channel (11) and the second channel (12) within the first connecting channel (13) while allowing the cooling medium to pass through.

2. The manifold assembly according to claim 1, characterized in that, Along the flow direction of the cooling medium in the first connecting channel (13), the distance between the separator (2) and the first channel (11) is greater than the distance between the separator (2) and the second channel (12).

3. The manifold assembly according to claim 2, characterized in that, Along the flow direction of the cooling medium in the first connecting channel (13), the total length of the first connecting channel (13) is L1, and the distance between the separator (2) and the first channel (11) is L2. L1 and L2 satisfy the following relationship: 。 4. The manifold assembly according to claim 1, characterized in that, The separator (2) has a through opening (21) that connects the first flow channel (11) and the second flow channel (12).

5. The manifold assembly according to claim 4, characterized in that, The opening area of ​​the through port (21) is greater than or equal to one-third of the flow area of ​​the first connecting channel (13), and less than or equal to two-thirds of the flow area of ​​the first connecting channel (13).

6. The manifold assembly according to claim 4, characterized in that, The thickness of the separator (2) is greater than or equal to 2 mm and less than or equal to 3.5 mm.

7. The manifold assembly according to any one of claims 4-6, characterized in that, The manifold body (1) includes a first body (1a) and a second body (1b), which are connected to each other and together form the first flow channel (11), the second flow channel (12) and the first connecting flow channel (13). The separator (2) has a first separator (22) and a second separator (23). The first separator (22) is located on the inner wall of the first body (1a) opposite to the first connecting channel (13) and has a first notch. The second separator (23) is located on the inner wall of the second body (1b) opposite to the first connecting channel (13) and has a second notch. When the first body (1a) and the second body (1b) are connected to each other, the first notch and the second notch are joined to form the through opening (21).

8. The manifold assembly according to any one of claims 4-6, characterized in that, The first connecting channel (13) has a limiting groove, and the separator (2) is engaged in the limiting groove.

9. The manifold assembly according to any one of claims 1-6, characterized in that, The second flow channel (12) has a fifth connection port (122), a sixth connection port (123), and an eighth connection port (125). The fifth connection port (122) is configured to communicate with the second liquid pump (500), and the sixth connection port (123) is configured to communicate with the battery (400). The second liquid pump (500) and the battery (400) are interconnected. The eighth connection port (125) is located between the fifth connection port (122) and the sixth connection port (123). The plurality of flow channels also include: A third flow channel (14) has a ninth connection port (141) and a tenth connection port (142). The ninth connection port (141) is configured to communicate with the third liquid pump (700) in the thermal management integrated module, and the tenth connection port (142) is configured to communicate with the heating device (600) in the thermal management integrated module. It can also selectively communicate with the sixth connection port (123). The third liquid pump (700) and the heating device (600) are interconnected. The third flow channel (14), together with the third liquid pump (700) and the heating device (600), forms a heating circuit flow channel for the cooling medium to circulate. A second connecting channel (15) is provided between the second channel (12) and the third channel (14) to connect the eighth connecting port (125) and the tenth connecting port (142).

10. The manifold assembly according to claim 9, characterized in that, The flow area of ​​the second connecting channel (15) is smaller than the flow area of ​​at least one of the second channel (12) and the third channel (14).

11. The manifold assembly according to claim 10, characterized in that, The flow area of ​​the second connecting channel (15) is greater than or equal to one-third of the flow area of ​​the second channel (12), and less than or equal to two-thirds of the flow area of ​​the second channel (12); and / or, The flow area of ​​the second connecting channel (15) is greater than or equal to one-third of the flow area of ​​the third channel (14), and less than or equal to two-thirds of the flow area of ​​the third channel (14).

12. The manifold assembly according to claim 9, characterized in that, The second connecting channel (15) is a bent channel.

13. The manifold assembly according to claim 12, characterized in that, The length of the second connecting channel (15) is greater than or equal to 30 mm and less than or equal to 200 mm.

14. A thermal management integrated module, characterized in that, The device includes a first liquid pump (300), a second liquid pump (500), a motor (200), a battery (400), and a manifold assembly as described in any one of claims 1-13. The manifold assembly has a first flow channel (11) and a second flow channel (12). The first flow channel (11) communicates with the first liquid pump (300) and the motor (200) and together with the first liquid pump (300) and the motor (200) forms a motor circuit flow channel for the flow of cooling medium. The first flow channel (11) is connected to the second liquid pump (500) and the battery (400), and together with the second liquid pump (500) and the battery (400), forms a battery circuit flow channel for the cooling medium to circulate.

15. An electric vehicle, characterized in that, Includes the thermal management integrated module as described in claim 14.

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