Variable Flow Heat Exchangers and Powertrain

Abstract

The present application discloses a variable flow heat exchanger and a powertrain, belonging to the technical field of automobile accessories. A variable flow heat exchanger comprises: a shell, the shell comprises a first shell and a second shell; a heat exchange core, arranged between the first shell and the second shell, the heat exchange core comprises multiple layers of heat exchange plates; a cooling fluid interface and a cooled fluid interface, the cooled fluid interface comprises a first interface, a second interface and a third interface; in a first state, the cooled fluid flows into the heat exchange core from the first interface, and after heat exchange through the fluid flow channels of each layer of heat exchange plates of the heat exchange core, it flows out from the second interface; in a second state, the cooled fluid flows into the heat exchange core from the first interface and the second interface respectively, and after heat exchange, it flows out from the third interface. A powertrain comprises a variable flow heat exchanger. The present application realizes the function of changing the internal process by means of mode switching, so as to take into account the requirements of the cooler under different operating conditions.

Description

Technical Field

[0001] The present application belongs to the technical field of automobile accessories, and relates to a cooler, and specifically to a variable flow heat exchanger and a power assembly. Background Art

[0002] At present, conventional automotive oil coolers on the market mostly use plate-fin oil coolers, which function is to disturb the flowing hot oil in the core and fins through the structural design of the core and fins, and to cool the oil through heat exchange with cooling water, thereby cooling the oil and keeping it in a suitable temperature range, ensuring that the engine oil has sufficient viscosity to maintain the lubrication of related engine moving parts.

[0003] Existing automotive oil coolers are designed with a single fluid flow method, that is, the inlet, outlet and flow direction of the flowing medium are fixed. However, when the actual vehicle cooling system is running under different working conditions, the flow rate of the internal medium will vary greatly. The current conventional oil cooler design cannot change its own process according to the change of system flow, resulting in reduced cooling efficiency or increased energy consumption of the cooler. Summary of the invention

[0004] In view of the above problems, the present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the present invention provides a variable flow heat exchanger and a powertrain, which can achieve the function of changing the internal flow of the heat exchanger by mode switching, so as to match different operating conditions and take into account the requirements of different operating conditions for the heat exchanger.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] As one aspect of the present invention, a variable flow heat exchanger is provided, comprising:

[0007] A housing, the housing comprising a first housing and a second housing;

[0008] A heat exchange core is arranged between the first shell and the second shell, and the heat exchange core is arranged to be formed by stacking multiple layers of heat exchange plates;

[0009] A cooling fluid interface and a cooled fluid interface, wherein the cooling fluid interface is arranged on the first housing, the cooled fluid interface is arranged on the second housing, and the cooled fluid interface includes a first interface, a second interface and a third interface;

[0010] In the first state, the cooled fluid flows into the heat exchange core from the first interface, exchanges heat through the fluid flow channels of each layer of heat exchange plates in the heat exchange core, and then flows out from the second interface;

[0011] In the second state, the cooled fluid flows into the heat exchange core from the first interface and the second interface respectively, exchanges heat through the fluid flow channels of each layer of heat exchange plates in the heat exchange core, and then flows out from the third interface.

[0012] In some of the embodiments, openings for the cooling fluid and the cooled fluid to flow are respectively provided at both ends of the heat exchange plate in the longitudinal direction, and after being assembled into a heat exchange core, a longitudinal fluid channel is formed.

[0013] In some of the embodiments, the heat exchange core is provided with a channel group A and a channel group B at both ends along the longitudinal direction, respectively, the channel group A includes a first channel, a second channel and a third channel arranged in sequence, the channel group B includes a fourth channel, a fifth channel and a sixth channel arranged in sequence, the first interface is arranged corresponding to the fourth channel, the second interface is arranged corresponding to the sixth channel, and the third interface is arranged corresponding to the second channel.

[0014] In some of the embodiments, the variable flow heat exchanger also includes a control device, a first valve is provided at the first interface, a second valve is provided at the second interface, and a third valve is provided at the third interface, and the first valve, the second valve and the third valve are electrically connected to the control device respectively.

[0015] In some embodiments, in a first state, the first valve and the second valve are electrically connected to the control device respectively, so that the first interface serves as an inlet of the cooled fluid, the second interface serves as an outlet of the cooled fluid, and the third interface is in a closed state;

[0016] In the second state, the first valve, the second valve and the third valve are electrically connected to the control device respectively, so that the first interface and the second interface serve as inlets for the cooled fluid, and the third interface serves as an outlet for the cooled fluid.

[0017] In some of the embodiments, the heat exchange plates are provided with fluid fins along the longitudinal direction for the cooling fluid and the cooled fluid to flow, and after being assembled into a heat exchange core, multiple layers of fluid channels are formed.

[0018] In some of the embodiments, the cooling fluid interface includes a cooling fluid inlet and a cooling fluid outlet, the cooling fluid inlet is arranged corresponding to the first channel and the third channel in the fluid channel, and the cooling fluid outlet is arranged corresponding to the fifth channel in the fluid channel.

[0019] In some embodiments, the heat exchange plate includes fluid components disposed on both sides, and the fluid components define a fluid flow path of the fluid on the heat exchange plate.

[0020] In some of the embodiments, the cooled fluid component in the fluid component includes fins and partition ribs, and the partition ribs divide the fluid flow path on the heat exchange plate into at least two flow path areas.

[0021] As another aspect of the present invention, a powertrain is provided, including an engine and a transmission, and also including a variable flow heat exchanger as described above, wherein the variable flow heat exchanger is connected to the engine and / or the transmission.

[0022] Implementing the technical solution of this application has at least the following beneficial effects:

[0023] In the embodiment of the present application, the variable flow heat exchanger provided includes a shell and a heat exchange core, and the second shell in the shell is provided with a first interface, a second interface and a third interface. According to different working conditions, the first interface, the second interface and the third interface can be independently used as a cooled fluid inlet or a cooled fluid outlet or closed to achieve switching of different modes. Therefore, the present application makes the cooled fluid interface include the first interface, the second interface and the third interface, and can use multiple interfaces to communicate with the engine or transmission in the vehicle respectively, and can redefine each interface as a cooled fluid inlet, a cooled fluid outlet or closed according to the requirements of the cooling system; according to the position change of the cooled fluid inlet and the cooled fluid outlet, the switching of different modes can be achieved. For example, the flow mode of the cooled fluid in the first state is adapted to the small flow condition and can increase the heat exchange, and the flow mode of the cooled fluid in the second state is adapted to the large flow condition and can reduce the flow resistance.

[0024] The present invention can achieve the function of changing the internal process of the cooling system by mode switching, thereby matching different operating conditions, optimizing the overall performance of the vehicle cooling system, and ultimately achieving the effect of reducing energy consumption. The variable flow heat exchanger structure of the present application can take into account the requirements of different operating conditions for the cooling system.

[0025] Additional aspects and advantages of the present application will be given in part in the following description, and in part will become obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of a variable flow heat exchanger provided in some embodiments of the present application;

[0027] Figure 2 A schematic structural diagram of a variable flow heat exchanger from another perspective provided in some embodiments of the present application;

[0028] Figure 3 A schematic diagram of the flow of cooling fluid in a variable flow heat exchanger provided in some embodiments of the present application;

[0029] Figure 4 A schematic diagram of the structure of a heat exchange plate in a variable flow heat exchanger provided in some embodiments of the present application;

[0030] Figure 5 A schematic diagram of the flow of a cooled fluid in a variable flow heat exchanger in a first state provided in some embodiments of the present application;

[0031] Figure 6 A schematic diagram of the structure of a heat exchange plate and a cooled fluid component in a variable flow heat exchanger provided in some embodiments of the present application;

[0032] Figure 7 A schematic diagram of the flow flow of a cooled fluid in a variable flow heat exchanger in a second state provided in some embodiments of the present application;

[0033] Figure 8 A schematic diagram of the connection between the fluid interface and the control device of the variable flow heat exchanger provided in some embodiments of the present application in the first state;

[0034] Fig. 9 A schematic diagram of the connection between the fluid interface and the control device of the variable flow heat exchanger provided in some embodiments of the present application in the second state.

[0035] Description of reference numerals:

[0036] 10-housing; 101-first housing; 111-cooling fluid inlet; 112-cooling fluid outlet; 102-second housing; 121-first interface; 122-second interface; 123-third interface;

[0037] 20-heat exchange core; 201-heat exchange plate; 211-first channel; 212-second channel; 213-third channel; 214-fourth channel; 215-fifth channel; 216-sixth channel; 202-fluid flow path; 221-fluid plate; 222-first fluid fin; 223-second fluid fin; 224-partition rib; 203-coolant flow path; 231-cooling plate; 232-cooling fin;

[0038] 30-Control device. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] The terms "first", "second", "third", etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", "third", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more.

[0041] The following is a detailed description of the embodiments of the present application through specific embodiments and their application scenarios in conjunction with the accompanying drawings. The description of the specific technical solution is as follows.

[0042] See also Figures 1 to 9 As shown, in some embodiments, a variable flow heat exchanger is provided, which includes: a shell 10 and a heat exchange core 20 arranged in the shell 10, and the shell 10 is provided with a fluid interface, and the fluid interface includes a cooling fluid interface and a cooled fluid interface.

[0043] Specifically, the shell 10 includes a first shell 101 and a second shell 102, the heat exchange core 20 is arranged between the first shell 101 and the second shell 102, and the heat exchange core 20 is arranged to be composed of a plurality of layers of heat exchange plates 201 stacked together; the cooling fluid interface is arranged on the first shell 101, and the cooled fluid interface is arranged on the second shell 102, and the cooled fluid interface includes a first interface 121, a second interface 122 and a third interface 123; that is, the first interface 121, the second interface 122 and the third interface 123 are all arranged on the second shell 102.

[0044] The above-mentioned fluid interface can be divided into a fluid inlet and a fluid outlet, which is used for the fluid to flow from the fluid inlet into the fluid channel of the heat exchange core 20, and then flow out from the fluid outlet to realize the heat exchange of the fluid. One or two of the first interface 121, the second interface 122 and the third interface 123 can be used as the inlet of the cooled fluid, and correspondingly, the remaining interfaces can be used as the outlet of the cooled fluid. Compared with the conventional cooler, the present application adds a fluid interface, which is connected to the vehicle cooling system through multiple fluid interfaces, and each interface can be redefined as an inlet, an outlet or closed according to the requirements of the cooling system; that is, according to the requirements of the cooling system, the positions of the cooled fluid inlet and the cooled fluid outlet in the present application can be changed. Thus, in the variable flow heat exchanger of the present application, the cooled fluid can have at least two flow flow states. For example, in the first state, the cooled fluid flows into the heat exchange core 20 from the first interface 121, and after heat exchange through the fluid flow channels of each layer of the heat exchange plate 201 of the heat exchange core 20, it flows out from the second interface 122. In the second state, the cooled fluid flows into the heat exchange core 20 from the first port 121 and the second port 122 respectively, exchanges heat through the fluid flow channels of the heat exchange plates 201 of each layer of the heat exchange core 20 , and then flows out from the third port 123 .

[0045] In this embodiment, the variable flow heat exchanger may include a variable flow stacked plate oil cooler for cooling the engine oil. The above-mentioned cooled fluid may be engine oil, and the above-mentioned cooling fluid may be various coolants, such as water. For the convenience of description, the embodiment of the present application takes the engine oil cooler as the above-mentioned heat exchanger as an example to specifically explain the variable flow cooler. However, those skilled in the art will understand that the principles, fluid interfaces or heat exchange cores and other arrangements of the present invention can be implemented in any appropriately arranged cooler (heat exchanger), and are not limited to engine oil coolers, that is, the above-mentioned cooled fluid is not limited to engine oil. In addition, for the sake of clarity and conciseness, the description of the well-known functions and structures of the cooler may be omitted.

[0046] In some embodiments, openings for the cooling fluid and the cooled fluid to flow are respectively provided at both ends of the heat exchange plate 201 in the longitudinal direction, and after being assembled into the heat exchange core 20, a longitudinal fluid channel is formed.

[0047] Furthermore, the heat exchange core 20 is provided with a channel group A and a channel group B at both ends in the longitudinal direction. The heat exchange core 20 as a whole can be generally in the shape of a cuboid, and the two side ends along the length direction of the heat exchange core 20 can be provided with a channel group A and a channel group B, for example, the channel group A and the channel group B can be provided at the left end and the right end, respectively. Of course, in other embodiments, the heat exchange core 20 can also adopt other shapes and structures, and this embodiment does not limit the specific shape of the heat exchange core 20.

[0048] The channel group A includes a first channel 211, a second channel 212 and a third channel 213 which are arranged in sequence and at intervals, and the second channel 212 is located between the first channel 211 and the third channel 213. The channel group B includes a fourth channel 214, a fifth channel 215 and a sixth channel 216 which are arranged in sequence and at intervals, and the fifth channel 215 is located between the fourth channel 214 and the sixth channel 216. A multi-layer fluid flow path 202 is arranged between the channel group A and the channel group B, and the fluid flow path 202 is connected with one or several channels and a fluid interface in the channel group A and the channel group B, so that the cooled fluid such as engine oil enters one or several channels from the fluid inlet, and then flows through the fluid flow path 202 and then converges into one or several channels therein and then flows out from the fluid outlet. The first channel 211, the second channel 212, the third channel 213, the fourth channel 214, the fifth channel 215 or the sixth channel 216 can play the role of collection and distribution. For example, some of the channels can be used for the collection and distribution of the cooled fluid such as engine oil, and the other channels can be used for the collection and distribution of the cooling fluid such as coolant. The setting of multiple interfaces and multiple channels can facilitate the change of the fluid flow and the switching of different modes.

[0049] The shell 10 in this embodiment is provided with a plurality of interfaces. In order to facilitate the change of the fluid flow, increase the speed of the fluid to each position, and thus improve the cooling effect of the cooler, the plurality of interfaces need to be respectively provided in correspondence with each channel. Exemplarily, the first interface 121 on the second shell 102 is provided in correspondence with the fourth channel 214 of the heat exchange core 20, the second interface 122 on the second shell 102 is provided in correspondence with the sixth channel 216 of the heat exchange core 20, and the third interface 123 on the second shell 102 is provided in correspondence with the second channel 212 of the heat exchange core 20. For example, the cooled fluid entering from the first interface 121 flows through the fourth channel 214, and the cooled fluid is distributed from the fourth channel 214 to each layer of the parallel fluid flow path 202.

[0050] The internal process of the variable flow heat exchanger in this embodiment can be changed, that is, the variable flow heat exchanger can have different modes or states. In this embodiment, according to the requirements of the cooling system, the positions of the fluid inlet and the fluid outlet are changed to achieve switching between two states. In the first state, the cooled fluid first enters the fourth channel 214 from the first interface 121, and then the cooled fluid is distributed to each layer of the fluid flow path 202 from the fourth channel 214, and the cooled fluid of each layer of the fluid flow path 202 is then collected to the sixth channel 216 and flows out from the second interface 122; in the second state, the cooled fluid first enters the fourth channel 214 and the sixth channel 216 from the first interface 121 and the second interface 122 respectively, and then the cooled fluid is distributed to each layer of the fluid flow path 202 from the fourth channel 214 and the sixth channel 216 respectively, and then the cooled fluid is distributed to each layer of the fluid flow path 202 from the fourth channel 214 and the sixth channel 216, and the cooled fluid of each layer of the fluid flow path 202 is then collected to the second channel 212 and flows out from the third interface 123.

[0051] In some embodiments, the cooled fluid in the first state forms a U-shaped flow pattern, and the cooled fluid in the second state forms a Y-shaped flow pattern.

[0052] In this way, this embodiment can realize mode switching according to the change of the position of the fluid inlet and the fluid outlet. Taking the fluid flow path 202 (oil path) as an example, it can realize the switching between U-type flow and Y-type flow: the U-type flow mode can adapt to small flow conditions and can improve the heat exchange capacity; the Y-type flow mode can adapt to large flow conditions and can reduce the flow resistance, thereby reducing energy consumption.

[0053] It is understandable that in order to achieve the switching between the two states, the variable flow heat exchanger needs to be equipped with a control element to guide the fluid in the system, such as the oil medium, from the specified inlet and outlet positions to pass through the oil cooler. This embodiment does not limit the specific type or structure of the control element, as long as the inlet and outlet positions can be changed and the purpose of the present invention is not limited.

[0054] The variable flow heat exchanger will be further described in detail below.

[0055] like Figure 1 and Figure 2As shown, in some embodiments, the first shell 101 is provided with a cooling medium inlet 111 and a cooling medium outlet 112, and a multi-layer coolant flow path 203 (i.e., a cooling medium flow path) is further provided between the channel group A and the channel group B. The following description is made by taking the cooling medium as an example. The cooling liquid flow path 203 is connected to one or several channels in the channel group A and the channel group B and the cooling medium inlet 111 and the cooling medium outlet 112, so that the coolant enters one or several channels from the cooling medium inlet 111, and then flows through the coolant flow path 203 and then converges to one or several channels therein before flowing out from the cooling medium outlet 112. In the heat exchange core 20, the coolant exchanges heat with the cooled fluid such as engine oil, thereby cooling the engine oil by the coolant.

[0056] In some embodiments, the coolant includes but is not limited to water, that is, the medium flowing in the coolant flow path 203 can be cooling water, and the cooling water can be used to exchange heat with the engine oil, but it is not limited thereto. In other embodiments, any other heat exchange medium that can exchange heat with the engine oil can also be used.

[0057] The first shell 101 is provided with a cooling medium inlet 111 and a cooling medium outlet 112, which are connected to a plurality of channels in the heat exchange core 20 and the coolant flow path 203. Optionally, the cooling medium inlet 111 and the cooling medium outlet 112 can be respectively located at the two ends of the first shell 101 in the longitudinal direction, such as the cooling medium inlet 111 can be located at the left end of the first shell 101, and the cooling medium outlet 112 can be located at the right end of the first shell 101. Optionally, a water inlet joint is connected to the cooling medium inlet 111, and a water outlet joint is connected to the cooling medium outlet 112. Further, the cooling medium inlet 111 can be connected to the water system or water pump in the vehicle through the water inlet joint to provide cooling water to the variable flow heat exchanger; the cooling medium outlet 112 is connected to another heat exchanger in the vehicle through the water outlet joint to input the water medium after heat exchange in the variable flow heat exchanger into another heat exchanger as the heat exchange medium of the other heat exchanger.

[0058] The second shell 102 is provided with a first interface 121, a second interface 122 and a third interface 123, and the first interface 121, the second interface 122 and the third interface 123 can be connected with a plurality of channels in the heat exchange core 20 and the fluid flow path 202. In order to facilitate the position change of the fluid inlet and the fluid outlet, realize the switching of different modes, and facilitate the import and export of the cooled fluid to ensure the heat exchange effect, the first interface 121, the second interface 122 and the third interface 123 need to be arranged at intervals. Exemplarily, in some embodiments, the first interface 121, the second interface 122 and the third interface 123 are arranged in a V shape on the second shell 102. For example, the first interface 121 and the second interface 122 are located at both ends of the opening of the V shape, and the third interface 123 is located at the tip of the V shape.

[0059] Optionally, one or both of the first interface 121, the second interface 122 and the third interface 123 serve as a fluid inlet, which is connected to a transmission or an engine in the vehicle through a pipeline; one of the first interface 121, the second interface 122 and the third interface 123 serves as a fluid outlet, which is ultimately connected to a transmission or an engine in the vehicle through a pipeline.

[0060] The heat exchange core in this embodiment may be a laminated type, that is, the heat exchange core 20 is configured to be stacked with multiple layers of heat exchange plates 201. In some embodiments, the heat exchange plates 201 are provided with fluid fins along the longitudinal direction for the cooling fluid and the cooled fluid to flow, and after being assembled into the heat exchange core 20, multiple layers of fluid channels are formed.

[0061] Optionally, the fluid flow path 202 and the coolant flow path 203 are arranged in upper and lower layers; this helps to ensure the cooling effect of the coolant flow path 203 on the fluid flow path 202. Optionally, the heat exchange core 20 is provided with multiple layers of fluid flow paths 202 and multiple layers of coolant flow paths 203, and the fluid flow paths 202 and the coolant flow paths 203 can be arranged alternately. This embodiment does not limit the specific number of layers of the fluid flow path 202 and the specific number of layers of the coolant flow path 203, and can be selected and set according to actual heat exchange requirements.

[0062] like Figure 3 and Figure 4 As shown, Figure 3The arrow in represents the flow direction of the coolant. In some embodiments, the cooling medium inlet 111 is arranged corresponding to the first channel 211 and the third channel 213, and the cooling medium outlet 112 is arranged corresponding to the fifth channel 215. The coolant first enters the first channel 211 and the third channel 213 from the cooling medium inlet 111, and then the coolant is distributed to each layer of the coolant flow path 203 from the first channel 211 and the third channel 213 respectively, and the coolant of each layer of the coolant flow path 203 is then collected in the fifth channel 215 and flows out from the cooling medium outlet 112; that is, the coolant such as cooling water enters the heat exchange core 20 from the cooling medium inlet 111 and then enters the vertical channel; the first channel 211 and the third channel 213 distribute the water flow to each parallel layer of the coolant flow path 203, and then after passing through each layer of the coolant flow path 203, it is collected at the fifth channel 215 and leaves the variable flow heat exchanger from the cooling medium outlet 112. The coolant flow paths 203 of each layer above are parallel paths formed through the channels in the channel group A and the channel group B, through which the coolant can flow for heat exchange with the engine oil.

[0063] In some embodiments, the heat exchange core 20 includes a heat exchange plate 201, on which a cooling fluid component and a cooled fluid component are respectively arranged, and a channel group A and a channel group B are respectively opened at both longitudinal ends of the heat exchange plate 201, and the cooling fluid component and the cooled component can be located between the channel group A and the channel group B; the cooled fluid component forms a fluid flow path 202, and the cooling fluid component forms a coolant flow path 203.

[0064] Optionally, the cooling fluid assembly includes a cooling plate 231 and cooling fins 232 connected to the cooling plate 231. The cooling liquid flow path 203 can be designed with the cooling plate 231 and the cooling fins 232 to form a flow channel for the flow of the cooling liquid.

[0065] like Figures 5 to 7 As shown, Figure 5 and Figure 7 The arrows in the figure represent the flow direction of the cooled fluid. The fluid flow path 202 of this embodiment adopts a variable inlet and outlet design so that the cooled fluid can have different flow patterns. In some embodiments, when the vehicle system is in a low flow state, the variable flow heat exchanger can enter a U-shaped flow mode, that is, the variable flow heat exchanger can be in the first state to increase the flow rate to increase the heat exchange. Figure 5As shown, the cooled fluid first enters the fourth channel 214 from the first interface 121, and then the cooled fluid is distributed to each layer of the fluid flow path 202 from the fourth channel 214, and the cooled fluid of each layer of the fluid flow path 202 is then collected in the sixth channel 216 and flows out from the second interface 122. That is, the cooled fluid enters the heat exchange core 20 from the first interface 121 to the vertical channel, and the fourth channel 214 distributes the cooled fluid to each layer of the parallel fluid flow path 202, and then after passing through each layer of the fluid flow path 202, it is collected at the sixth channel 216 and leaves the variable flow heat exchange system from the second interface 122. The third interface 123 in this state is not connected to the system.

[0066] like Figure 7 As shown, in some embodiments, when the vehicle system is in a high flow state, the variable flow heat exchanger can enter a Y-type flow mode, that is, the variable flow heat exchanger can be in the second state to shorten the flow to reduce the oil side flow resistance. In this state, the cooled fluid first enters the fourth channel 214 and the sixth channel 216 from the first interface 121 and the second interface 122 respectively, and then the cooled fluid is distributed to each layer of the fluid flow path 202 from the fourth channel 214 and the sixth channel 216 respectively, and the cooled fluid of each layer of the fluid flow path 202 is then collected in the second channel 212 and flows out from the third interface 123. That is, the cooled fluid enters the heat exchange core 20 from the first interface 121 and the second interface 122 at the same time and then reaches the vertical channel, and the fourth channel 214 and the sixth channel 216 distribute the cooled fluid to each layer of the parallel fluid flow path 202, and then after passing through each layer of the fluid flow path 202, it is collected at the second channel 212 and leaves the variable flow heat exchange system from the third interface 123.

[0067] In this embodiment, the heat exchange plate 201 includes fluid components arranged on both sides, and the fluid components define the fluid flow path 202 of the fluid on the heat exchange plate 201. Optionally, the fluid component includes a cooling fluid component and a cooled fluid component, and the cooled fluid component in the fluid component includes fins and partition ribs 224, and the partition ribs 224 divide the fluid flow path 202 on the heat exchange plate 201 into at least two flow path areas; wherein the fins include a first fluid fin 222 and a second fluid fin 223.

[0068] Optional, such as Figure 6As shown, the cooled fluid assembly includes a fluid plate 221, a first fluid fin 222 and a second fluid fin 223 connected to the fluid plate 221, and a partition rib 224 located between the first fluid fin 222 and the second fluid fin 223. The fluid flow path 202 can be designed with the fluid plate 221 and the first fluid fin 222 and the second fluid fin 223 to form a flow channel for the cooled fluid to flow. In addition, a partition rib 224 can be formed between the first fluid fin 222 and the second fluid fin 223 by stamping, and the partition rib 224 can play a partitioning role so that the cooled fluid can form a U-shaped flow pattern.

[0069] like Figures 8 to 9 As shown, in some embodiments, the variable flow heat exchanger further includes a control device 30, a first valve is provided at the first interface 121, a second valve is provided at the second interface 122, and a third valve is provided at the third interface 123, and the first valve, the second valve and the third valve are respectively electrically connected to the control device 30. The first interface 121, the second interface 122 and the third interface 123 are in communication with the external control device 30, and the corresponding mode switching can be achieved by adjusting the control device 30.

[0070] Optionally, the first valve, the second valve and the third valve may each independently be one or more of an electronic temperature control valve, a mechanical valve, a thermal valve, etc. This embodiment does not limit the specific types of the first valve, the second valve and the third valve.

[0071] In some embodiments, in the first state, the first valve and the second valve are electrically connected to the control device 30 respectively, so that the first interface 121 serves as the inlet of the cooled fluid, the second interface 122 serves as the outlet of the cooled fluid, and the third interface 123 is in a closed state. That is, in the U-shaped flow mode, the first interface 121 serves as the inlet of the cooled fluid, the second interface 122 serves as the outlet of the cooled fluid and is connected to the control device 30, and the third interface 123 is closed or not connected.

[0072] In the second state, the first valve, the second valve and the third valve are electrically connected to the control device 30 respectively, so that the first interface 121 and the second interface 122 are both used as the inlet of the cooled fluid, and the third interface 123 is used as the outlet of the cooled fluid. That is, in the Y-type flow mode, the first interface 121 and the second interface 122 are both connected to the control device 30 as the inlet of the cooled fluid, and the third interface 123 is connected to the control device 30 as the outlet of the cooled fluid.

[0073] In some embodiments, a powertrain is provided, including an engine and a transmission, and also including a variable flow heat exchanger as described above, wherein the variable flow heat exchanger is in communication with the engine and / or the transmission.

[0074] The powertrain provided in this embodiment includes the aforementioned variable flow heat exchanger, and thus has at least all the characteristics and advantages of the variable flow heat exchanger, which will not be described in detail here. In addition to the variable flow heat exchanger, the powertrain may also include other parts such as an engine and a transmission. The specific structures and connection methods of other parts in the powertrain can refer to the prior art, which will not be described in detail here.

[0075] In summary, the variable flow heat exchanger of the embodiment of the present application can achieve the function of changing the internal flow of the cooling system by mode switching, so as to match different operating conditions, optimize the performance of the oil cooler and the overall performance of the vehicle cooling system, and finally achieve the effect of reducing energy consumption. The variable flow heat exchanger structure of the present application can take into account the requirements of different operating conditions for the cooling system.

[0076] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0077] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A variable flow heat exchanger, characterized in that: include: A housing (10), the housing (10) comprising a first housing (101) and a second housing (102); A heat exchange core (20) is arranged between the first shell (101) and the second shell (102), and the heat exchange core (20) is arranged to be composed of a plurality of layers of heat exchange plates (201) stacked together; A channel group A and a channel group B are respectively arranged at both ends of the heat exchange plate (201), and a fluid flow path (202) and a coolant flow path (203) are arranged between the channel group A and the channel group B; the channel group A comprises a first channel (211), a second channel (212) and a third channel (213) which are arranged in sequence and at intervals, and the second channel (212) is located between the first channel (211) and the third channel (213); the channel group B comprises a fourth channel (214), a fifth channel (215) and a sixth channel (216) which are arranged in sequence and at intervals, and the fifth channel (215) is located between the fourth channel (214) and the sixth channel (216); A cooling fluid interface and a cooled fluid interface, wherein the cooling fluid interface is arranged on the first housing (101), the cooled fluid interface is arranged on the second housing (102), and the cooled fluid interface comprises a first interface (121), a second interface (122) and a third interface (123); In the first state, the cooled fluid flows into the heat exchange core (20) from the first interface (121), undergoes heat exchange through the fluid flow channels of each layer of heat exchange plates (201) of the heat exchange core (20), and then flows out from the second interface (122); In the second state, the cooled fluid flows into the heat exchange core (20) from the first interface (121) and the second interface (122) respectively, and after heat exchange through the fluid flow channels of each layer of heat exchange plates (201) of the heat exchange core (20), flows out from the third interface (123).

2. The variable flow heat exchanger according to claim 1, characterized in that: The heat exchange plate (201) is provided with openings for the cooling fluid and the cooled fluid to flow at both ends in the longitudinal direction, and after being assembled into a heat exchange core (20), a longitudinal fluid channel is formed.

3. The variable flow heat exchanger according to claim 2, characterized in that: The heat exchange core (20) is provided with a channel group A and a channel group B at both ends in the longitudinal direction, the channel group A comprises a first channel (211), a second channel (212) and a third channel (213) arranged in sequence, the channel group B comprises a fourth channel (214), a fifth channel (215) and a sixth channel (216) arranged in sequence, the first interface (121) is arranged corresponding to the fourth channel (214), the second interface (122) is arranged corresponding to the sixth channel (216), and the third interface (123) is arranged corresponding to the second channel (212).

4. The variable flow heat exchanger according to claim 1, characterized in that: The variable flow heat exchanger also includes a control device (30), a first valve is provided at the first interface (121), a second valve is provided at the second interface (122), and a third valve is provided at the third interface (123), and the first valve, the second valve and the third valve are electrically connected to the control device (30) respectively.

5. The variable flow heat exchanger according to claim 4, characterized in that: In a first state, the first valve and the second valve are electrically connected to the control device (30) respectively, so that the first interface (121) serves as an inlet of the cooled fluid, the second interface (122) serves as an outlet of the cooled fluid, and the third interface (123) is in a closed state; In the second state, the first valve, the second valve and the third valve are respectively electrically connected to the control device (30), so that the first interface (121) and the second interface (122) both serve as inlets for the cooled fluid, and the third interface (123) serves as an outlet for the cooled fluid.

6. The variable flow heat exchanger according to any one of claims 1 to 5, characterized in that: The heat exchange plate (201) is provided with fluid fins along the longitudinal direction for the cooling fluid and the cooled fluid to flow, and after being assembled into a heat exchange core (20), a multi-layer fluid channel is formed.

7. The variable flow heat exchanger according to claim 6, characterized in that: The cooling fluid interface comprises a cooling fluid inlet (111) and a cooling fluid outlet (112); the cooling fluid inlet (111) is arranged corresponding to a first channel (211) and a third channel (213) in the fluid channel; and the cooling fluid outlet (112) is arranged corresponding to a fifth channel (215) in the fluid channel.

8. The variable flow heat exchanger according to claim 6, characterized in that: The heat exchange plate (201) comprises fluid components arranged on both sides, and the fluid components define a fluid flow path (202) of the fluid on the heat exchange plate (201).

9. The variable flow heat exchanger according to claim 8, characterized in that: The cooled fluid component in the fluid component comprises fins and partition ribs (224), and the partition ribs (224) divide the fluid flow path (202) on the heat exchange plate (201) into at least two flow path areas.

10. A powertrain, comprising an engine and a transmission, characterized in that: It also includes a variable flow heat exchanger as described in any one of claims 1 to 9, wherein the variable flow heat exchanger is connected to the engine and / or the transmission.

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