Heat exchange device, power assembly, motor controller and vehicle

Abstract

The utility model relates to a heat exchange device, a power assembly, a motor controller and a vehicle, the heat exchange device comprises a flow inlet pipeline, a flow outlet pipeline and a heat exchange module, the flow inlet pipeline extends in the first direction, the flow outlet pipeline extends in the first direction, the heat exchange module is arranged between the flow inlet pipeline and the flow outlet pipeline, and a plurality of heat exchange areas are arranged in the heat exchange module; the at least two heat exchange areas are arranged in the second direction, an included angle is formed between the first direction and the second direction, and the heat exchange device can reduce the flow resistance and pressure loss of the heat exchange medium in the heat exchange runner so as to improve the cooling effect on the part to be subjected to heat exchange.

Description

Technical Field

[0001] This disclosure relates to the field of automotive technology, and more specifically, to a heat exchange device, a power assembly, a motor controller, and a vehicle. Background Technology

[0002] With the rapid development of new energy electric vehicles, the three-phase power module in the vehicle's motor controller is prone to generating extremely high heat during operation, which in turn increases the requirements for the heat dissipation capacity of the three-phase power module.

[0003] In related technologies, the common method for cooling three-phase power modules is through cooling water channels. These channels have three heat dissipation units connected in series, each thermally connected to a power module. As the cooling medium flows through the channels, it exchanges heat with the heat dissipation units, thus carrying away the heat generated by the power modules. However, this method has poor cooling efficiency, and the cooling medium experiences significant flow resistance and pressure loss, increasing the difficulty of pressure-flow control in the system. Utility Model Content

[0004] The purpose of this disclosure is to provide a heat exchange device, power assembly, motor controller, and vehicle that can reduce the flow resistance and pressure loss of the heat exchange medium in the heat exchange channel and improve the cooling effect on the heat exchange components, thereby at least partially solving the aforementioned technical problems.

[0005] To achieve the above objectives, a first aspect of this disclosure provides a heat exchange device, comprising: an inlet pipe extending along a first direction; an outlet pipe extending along the first direction; and a heat exchange module disposed between the inlet pipe and the outlet pipe, wherein the heat exchange module has a plurality of heat exchange regions, at least two of which are arranged along a second direction, the first direction forming an angle with the second direction.

[0006] Optionally, at least a portion of the inlet pipe has a flow cross-sectional area at the end furthest from the heat exchange module that is less than or equal to the flow cross-sectional area at the other end closest to the heat exchange module; and / or,

[0007] At least a portion of the outflow pipe has a flow cross-sectional area at the end closest to the heat exchange module that is greater than or equal to the flow cross-sectional area at the end furthest from the heat exchange module.

[0008] Optionally, at least a portion of the flow cross-sectional area of ​​the inlet pipe gradually increases from the end furthest from the heat exchange module to the end facing the heat exchange module; and / or,

[0009] At least a portion of the outflow pipe has a flow cross-sectional area that gradually decreases from one end near the heat exchange module to the other end away from the heat exchange module.

[0010] Optionally, at least a portion of the inlet pipe and / or at least a portion of the outlet pipe are streamlined pipes.

[0011] Optionally, the inlet piping includes an inlet main pipe and inlet branch pipes, wherein the inlet main pipe is connected to the inlet of the at least two heat exchange zones via the inlet branch pipes, and / or,

[0012] The outflow pipeline includes an outflow branch pipe and an outflow main pipe, and the outflow main pipe is connected to the outlet of the at least two heat exchange zones through the outflow branch pipe.

[0013] Optionally, the flow cross-sectional area of ​​each of the inlet branches is the same, or the flow cross-sectional area of ​​at least one of the inlet branches is different from the flow cross-sectional area of ​​the remaining inlet branches; and / or, the flow cross-sectional area of ​​each of the outlet branches is the same, or the flow cross-sectional area of ​​at least one of the outlet branches is different from the flow cross-sectional area of ​​the remaining outlet branches.

[0014] Optionally, the heat exchange module includes a housing, and the plurality of heat exchange areas are formed within the housing.

[0015] Optionally, each of the heat exchange zones is isolated from the others, or at least two of the heat exchange zones are interconnected.

[0016] Optionally, the plurality of heat exchange regions include at least two first heat exchange regions arranged along a second direction, and at least one second heat exchange region arranged with the at least two first heat exchange regions in a first direction.

[0017] Optionally, the inlet pipe, the at least two first heat exchange areas, the at least one second heat exchange area, and the outlet pipe are arranged sequentially along a first direction; or, the inlet pipe, the at least one second heat exchange area, the at least two first heat exchange areas, and the outlet pipe are arranged sequentially along a first direction.

[0018] Optionally, the at least two first heat exchange zones are connected to an adjacent second heat exchange zone via an intermediate pipeline.

[0019] Optionally, the flow cross-sectional area of ​​the intermediate pipeline gradually decreases from one end away from the second heat exchange region to the other end closer to the second heat exchange region.

[0020] Optionally, the heat exchange module includes a first housing and a second housing, wherein at least two first heat exchange regions are formed in the first housing and a second heat exchange region is formed in the second housing.

[0021] Optionally, each of the first heat exchange zones is isolated from the others, or at least two of the first heat exchange zones are interconnected.

[0022] Optionally, the first direction is perpendicular to the second direction.

[0023] Optionally, the heat exchange module has heat exchange channels that form the plurality of heat exchange regions.

[0024] A second aspect of this disclosure provides a power assembly, including a power module and a heat exchange device as described in the above-mentioned alternative, wherein the power module is arranged in close contact with the corresponding heat exchange area.

[0025] A third aspect of this disclosure is to provide a motor controller, including the power components described in the above-mentioned alternatives;

[0026] A fourth aspect of this disclosure provides a vehicle including the heat exchange device, power component, or motor controller described in the above-mentioned alternatives.

[0027] Through the above-described technical solution, namely the heat exchange device provided in this disclosure, when heat exchange is performed on the heat exchange component (e.g., a three-phase power module), the heat exchange medium can enter the heat exchange area within the heat exchange module from the inlet pipe extending along the first direction to absorb heat from the heat exchange component. After absorbing heat, the heat exchange medium can be discharged through the outlet pipe extending along the same first direction as the inlet pipe. That is, the heat exchange medium maintains a flow pattern in the same or approximately the same direction for most of its flow path, which can minimize the flow resistance and pressure loss of the heat exchange medium in the inlet pipe, outlet pipe, and heat exchange module, facilitating system pressure and flow control. Furthermore, by arranging at least two heat exchange areas along the second direction, the flow path of the heat exchange medium in the first direction can be shortened, thereby further improving heat exchange efficiency, such as the cooling effect on the heat exchange component.

[0028] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0029] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0030] Figure 1 This is a front view of the heat exchange device provided in an exemplary embodiment of this disclosure;

[0031] Figure 2 This is a top view of the heat exchange device provided in an exemplary embodiment of this disclosure;

[0032] Figure 3 yes Figure 2 A cross-sectional view at position AA in the middle;

[0033] Figure 4 This is a side view of the heat exchange device provided in an exemplary embodiment of this disclosure;

[0034] Figure 5 This is a schematic diagram of the heat exchange device provided in the exemplary embodiments of this disclosure in parallel and series mode;

[0035] Figure 6 This is a schematic diagram of the heat exchange device provided in the exemplary embodiments of this disclosure in the series-parallel connection mode.

[0036] Explanation of reference numerals in the attached figures

[0037] 1-Inlet pipe; 110-Inlet main pipe; 120-Inlet branch pipe; 2-Outlet pipe; 210-Outlet branch pipe; 220-Outlet main pipe; 3-Heat exchange module; 311-Heat exchange zone; 3111-Inlet; 3112-Outlet; 3113-First heat exchange zone; 3114-Second heat exchange zone; 320-Outer shell; 330-First shell; 340-Second shell; 4-Intermediate pipe; 5-Power module; 6-Heat dissipation pin. Detailed Implementation

[0038] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0039] In this disclosure, unless otherwise stated, directional terms such as "inner" and "outer" refer to the inner and outer contours of a component or structure itself; "first" and "second" are generally used to distinguish one element from another and do not indicate sequence or importance. Furthermore, the same reference numerals denote the same elements in different figures, and the same reference numerals also denote the same elements in the same figure.

[0040] In related technologies, the common method for cooling three-phase power modules is through cooling water channels. These channels have three heat dissipation units connected in series, each thermally connected to a power module. As the cooling medium flows through the channels, it exchanges heat with the heat dissipation units, thus carrying away the heat generated by the power modules. However, this method has poor cooling efficiency, and the cooling medium experiences significant flow resistance and pressure loss, increasing the difficulty of pressure-flow control in the system.

[0041] The inventors discovered that in the above-mentioned method, as the cooling medium flows, its cooling effect gradually decreases due to its long flow path, resulting in increasingly higher temperatures in the power module and poor cooling performance. Furthermore, when the cooling medium enters or exits the cooling water channel via the cooling water inlet / outlet pipes, it typically experiences a "vertical turn" due to the different flow directions between the pipes and the channel. This can easily cause significant flow resistance and pressure loss, increasing the difficulty of system pressure-flow control.

[0042] Based on this, the first aspect of this disclosure provides a heat exchange device, with reference to Figures 1 to 6 As shown, the heat exchange device includes an inlet pipe 1, an outlet pipe 2, and a heat exchange module 3. The inlet pipe 1 extends along a first direction; the outlet pipe 2 extends along the first direction; the heat exchange module 3 is disposed between the inlet pipe 1 and the outlet pipe 2. The heat exchange module 3 has multiple heat exchange areas 311, and at least two heat exchange areas 311 are arranged along a second direction, with the first direction forming an angle with the second direction.

[0043] With the above-described solution, namely the heat exchange device provided in this disclosure, when heat exchange is performed on the heat exchange component (e.g., a three-phase power module), the heat exchange medium can enter the heat exchange region 311 within the heat exchange module 3 from the inlet pipe 1 extending along the first direction to absorb heat from the heat exchange component. After absorbing heat, the heat exchange medium can be discharged through the outlet pipe 2, which extends along the same first direction as the inlet pipe 1. That is, the heat exchange medium maintains a flow pattern in the same or approximately the same direction for most of its flow path, which can minimize the flow resistance and pressure loss of the heat exchange medium in the inlet pipe 1, outlet pipe 2, and heat exchange module 3, facilitating system pressure and flow control. Furthermore, by arranging at least two heat exchange regions 311 along the second direction, the flow path of the heat exchange medium in the first direction can be shortened, thereby further improving the heat exchange efficiency, such as the cooling effect on the heat exchange component.

[0044] Furthermore, exemplarily Figure 1 , Figure 5 and Figure 6 The vertical direction shown in the diagram is the first direction for reference. The extension of the inlet pipe 1 along the first direction can be understood as the inlet pipe 1 extending from top to bottom or from bottom to top in the first direction. The extension form of the inlet pipe 1 includes, but is not limited to, straight extension, curved extension, and zigzag extension. For example, Figure 6 As shown, the inlet pipe 1 includes an inlet manifold 110, which can be a straight pipe, or, in a manner not shown, a curved or zigzag pipe. Alternatively, for example... Figure 1 and Figure 5As shown, the inlet pipe 1 includes an inlet main pipe 110 and an inlet branch pipe 120. The inlet main pipe can be a straight pipe, while the inlet branch pipe 120 can be a curved pipe or a zigzag pipe. Alternatively, in a configuration not shown, the inlet branch pipe 120 can also be a straight pipe. The inlet main pipe 110 and the inlet branch pipe 120 can also have an angle of less than 90°, and the inlet main pipe 110 can also be a curved or zigzag pipe, etc.

[0045] Similarly, the extension of the outflow pipe 2 along the first direction can be understood as the extension trend of the outflow pipe 2 being from top to bottom or from bottom to top in the first direction. The extension form of the outflow pipe 2 includes, but is not limited to, straight extension, curved extension, and zigzag extension. For example, Figure 5 As shown, the outflow pipe 2 includes an outflow manifold 220, which can be a straight pipe, or, in a manner not shown, a curved or zigzag pipe. Alternatively, for example... Figure 1 and Figure 6 As shown, the outflow pipe 2 includes an outflow main pipe 220 and an outflow branch pipe 210. The outflow main pipe 220 can be a straight pipe, while the outflow branch pipe 210 can be a curved pipe or a zigzag pipe. Alternatively, in a configuration not shown, the outflow branch pipe 210 can also be a straight pipe. The outflow main pipe 220 and the outflow branch pipe 210 can also have an angle of less than 90°, and the outflow main pipe 220 can also be a curved or zigzag pipe, etc.

[0046] It should be noted that the reduction of flow resistance and pressure loss of the heat exchange medium during the cooling process mentioned in the above embodiments is achieved by controlling the flow direction of the heat exchange medium, such as reducing the number of pipe bends and reducing "vertical turns" of the heat exchange medium in the pipe. This can be referred to as... Figure 1 As shown, during the flow of the heat exchange medium through the heat exchange device, it passes through the inlet pipe 1, the heat exchange zone 311, and the outlet pipe 2 in sequence. During the flow, since the extension direction of the inlet pipe 1, the flow direction of the heat exchange medium in the heat exchange zone 311, and the extension direction of the outlet pipe 2 are all in the same or approximately the same direction, the flow between the three pipes is reduced by minimizing pipe bends. This reduces the impact of the heat exchange medium on the inner wall of the pipes during the flow of the heat exchange medium through the inlet pipe 1, the heat exchange zone 311, and the outlet pipe 2, thereby reducing the flow resistance and pressure loss of the heat exchange medium and facilitating system pressure and flow control.

[0047] Furthermore, the heat exchange module 3 mentioned in the above specific embodiment may also have a heat exchange channel for the flow of the heat exchange medium. The heat exchange channel can form the heat exchange region 311 mentioned in the above specific embodiment, and the specific shape of the heat exchange channel can be any suitable shape. For example, the heat exchange channel can be as follows: Figure 1The rectangular area in the middle can have multiple heat dissipation pins 6 (described in detail below) arranged at intervals, or the heat exchange channel can also be in the form of pipes or other suitable forms.

[0048] In the above embodiments, the heat exchange medium flowing through the inlet pipe 1, the heat exchange zone 311 and the outlet pipe 2 can be a liquid medium such as water or cooling oil, or any suitable gaseous medium such as nitrogen or air. Those skilled in the art can use any suitable heat exchange medium for the heat exchange device according to the actual situation, and this disclosure does not make any specific limitation.

[0049] In practical applications, the arrangement of multiple heat exchange zones can be arranged according to actual application requirements. Each phase in the three-phase power module can also be arranged in a reasonable manner according to the different actual heat dissipation requirements during operation. By coordinating the spatial arrangement and heat dissipation requirements of the heat exchange zones and power modules, multiple heat exchange zones and power modules can be arranged.

[0050] For example, each heat exchange zone 311 can be arranged in the second direction. Figure 1 An exemplary embodiment is shown in which three heat exchange regions 311 are arranged side by side in the second direction. In this way, each heat exchange region 311 can achieve the advantages of a large heat dissipation coefficient, good cooling effect, and uniform heat dissipation. Alternatively, some heat exchange regions 311 can be arranged in the second direction, while others are arranged along the first direction. For example... Figure 5 and Figure 6 An exemplary embodiment is shown in which two heat exchange regions 311 are arranged side by side in the second direction, and another heat exchange region 311 is arranged side by side with the two heat exchange regions 311 in the first direction. In this embodiment, the flow distribution becomes simpler and can be adapted to different layout forms of the heat exchange components to achieve the purpose of optimizing heat exchange. In addition, it can also be applied to situations where the inlet pipe 1 and the outlet pipe 2 are far apart and the space in the second direction is slightly small.

[0051] Wherein, the first direction and the second direction form an angle, which can be understood as the angle between the first direction and the second direction being greater than 0° and less than 180°. For example, Figure 1 The direction indicated by the X arrow in the diagram can represent the first direction. Figure 1 The direction pointed to by the Y-arrow in the diagram can be a second direction.

[0052] To maximize the uniformity of the overall heat transfer effect of the heat exchange medium, the first and second directions can be... Figure 1As shown, the first direction is perpendicular to the second direction. In this arrangement, when the heat exchange medium enters the multiple heat exchange zones 311 from the inlet pipe 1, the heat exchange medium will be distributed as evenly as possible to the multiple heat exchange zones 311 through the mutually perpendicular first and second directions, so as to uniformly absorb the heat of the heat exchange components. After absorbing the heat, the heat exchange medium is discharged from the outlet pipe 2, which also extends along the first direction, so as to further improve the uniformity of the overall heat exchange effect.

[0053] In some implementations, reference Figure 1 and Figure 5 As shown, heat exchange module 3 is connected to inlet main pipe 110 via inlet branch pipe 120; and / or, refer to Figure 1 and Figure 6 As shown, heat exchange module 3 is connected to outlet main pipe 220 via outlet branch pipe 210. In this way, various different arrangements mentioned in the above embodiments are achieved by connecting multiple inlet branch pipes 120 to inlet main pipe 110 and / or multiple outlet branch pipes 210 to outlet main pipe 220, thereby using a suitable arrangement to cool and exchange heat in the heat exchange components, such as the phases of a three-phase power module. For example, refer to... Figure 1 As shown, when the heat exchange zones 311 are arranged side-by-side along the second direction, there can be three inlet branch pipes 120 and three outlet branch pipes 210. When the heat exchange module 3 is connected to the inlet main pipe 110 through the inlet branch pipe 120 and to the outlet main pipe 220 through the outlet branch pipe 210, the heat exchange mode adopted by the heat exchange device for the three-phase power module is a parallel mode. That is, when the heat exchange medium flows in from the inlet main pipe 110, it will be divided into three inlet branch pipes 120 and enter the corresponding heat exchange zone 311 through the three inlet branch pipes 120. The three phases of the three-phase power module can be in contact with the corresponding heat exchange zone 311. The heat exchange medium flowing through the heat exchange zone 311 can absorb the heat generated by the three phases and then enter the three outlet branch pipes 210, and then merge into the outlet main pipe 220 for discharge. This method can realize the parallel heat exchange mode. When the series-parallel arrangement is adopted, refer to Figure 6As shown, for example, when two heat exchange zones 311 are arranged side-by-side along the second direction and another heat exchange zone 311 is arranged side-by-side along the first direction, the number of outflow branch pipes 210 can be two. In this case, two of the heat exchange zones 311 are connected to the outflow main pipe 220 through the outflow branch pipes 210, and the other heat exchange zone 311 can be connected to the two heat exchange zones 311 respectively through two intermediate pipes 4 (described in detail below). At this time, the three phases of the three-phase power module can be attached to the three heat exchange zones 311 one by one. After the heat exchange medium flows in from the inflow main pipe 110, it will first enter one of the heat exchange zones 311 and perform heat exchange on one of the phases corresponding to that zone. After heat exchange, the heat exchange medium is diverted through the intermediate pipe 4 to the heat exchange zones 311 corresponding to the latter two phases to continue heat exchange on the latter two phases. After heat exchange, the cooling medium is discharged to the two outflow branch pipes 210 respectively, and finally converges and discharges at the outflow main pipe 220. When a parallel and series arrangement is adopted, refer to Figure 5 As shown, there can be two inlet branch pipes 120. In this case, two heat exchange zones 311 are connected through the inlet branch pipes 120, and the other heat exchange zone 311 can be connected to the two heat exchange zones 311 through two intermediate pipes 4 respectively. At this time, the three-phase power modules can be attached to the three heat exchange zones 311 one by one. After the heat exchange medium flows in from the inlet main pipe 110, it will first be split through the two inlet branch pipes 120, and then enter the two heat exchange zones 311 corresponding to the first two phases of the three-phase power module for heat exchange. Then, it will merge through the intermediate pipes 4 and enter the heat exchange zone 311 corresponding to the third phase for heat exchange. Finally, it will be discharged from the outlet pipe 2.

[0054] It should be noted that the only difference between the series-parallel and parallel-series arrangements mentioned in the above embodiments is the opposite flow direction of the heat exchange medium, that is, in Figure 6 In the series-parallel configuration shown, the heat exchange medium enters through the inlet pipe 1, flows through the first heat exchange zone, and then splits to the last two heat exchange zones; while using Figure 5 In the parallel-connected embodiment shown, the heat exchange medium enters through the inlet main pipe 110 and is first diverted to the first two heat exchange areas through two inlet branch pipes 120. Then, it merges through the intermediate pipe 4 and enters the third heat exchange area. The appropriate medium flow method can be selected according to the different heat dissipation requirements of the three-phase heat exchange module.

[0055] In some embodiments, the flow cross-sectional area of ​​at least a portion of the inlet pipe 1 at the end furthest from the heat exchange module 3 is less than or equal to the flow cross-sectional area at the end closest to the heat exchange module 3. Therefore, when the flow cross-sectional area of ​​at least a portion of the inlet pipe 1 at the end furthest from the heat exchange module 3 is less than the flow cross-sectional area at the end closest to the heat exchange module 3, the effect of reducing pressure loss during fluid flow within the pipe can be achieved. Here, "at least a portion of the inlet pipe 1" refers to at least a section of the inlet pipe 1, and the flow cross-sectional area of ​​at least a portion of the inlet pipe 1 at the end furthest from the heat exchange module 3 is less than or equal to the flow cross-sectional area at the end closest to the heat exchange module 3; that is, the flow cross-sectional area of ​​at least a portion of the pipe section at the end furthest from the heat exchange module 3 is less than or equal to the flow cross-sectional area at the end closest to the heat exchange module 3. Exemplarily, the flow cross-sectional area of ​​at least a portion of the inlet manifold 110 and / or at least a portion of the inlet branch pipe 120 at the end furthest from the heat exchange module 3 is less than or equal to the flow cross-sectional area at the other end closest to the heat exchange module 3. This disclosure exemplarily illustrates an embodiment in which the flow cross-sectional area of ​​the inlet manifold 110 and / or the inlet branch pipe 120 at the end furthest from the heat exchange module 3 is less than the flow cross-sectional area at the other end closest to the heat exchange module 3. For example, in Figure 1 In the example, the flow cross-sectional area of ​​all pipe sections of the inlet main pipe 110 and the inlet branch pipe 120 gradually increases from the direction away from the heat exchange module 3 toward the direction closer to the heat exchange module 3; or, in the example not shown in the figure, the flow cross-sectional area of ​​some pipe sections of the inlet main pipe 110 and / or the inlet branch pipe 120 may also gradually increase from the direction away from the heat exchange module 3 toward the direction closer to the heat exchange module 3; or, at least some pipe sections show an increasing flow cross-sectional area from the direction away from the heat exchange module 3 toward the direction closer to the heat exchange module 3, which can also achieve the above-mentioned beneficial effects.

[0056] Alternatively, at least a portion of the outflow pipe 2, near the heat exchange module 3, may have a flow cross-sectional area greater than or equal to the flow cross-sectional area at the end furthest from the heat exchange module 3. This increases the fluid flow rate and pressure. Here, "at least a portion of the outflow pipe 2" refers to at least a section of the outflow pipe 2, where the flow cross-sectional area near the heat exchange module 3 is greater than or equal to the flow cross-sectional area at the end furthest from the heat exchange module 3. In other words, at least a portion of the pipe section near the heat exchange module 3 has a flow cross-sectional area greater than or equal to the flow cross-sectional area at the end furthest from the heat exchange module 3. Exemplarily, the flow cross-sectional area of ​​at least a portion of the outflow branch pipe 210 and / or at least a portion of the outflow main pipe 220 near the heat exchange module 3 is greater than or equal to the flow cross-sectional area of ​​the other end away from the heat exchange module 3. This disclosure exemplarily illustrates an embodiment in which the flow cross-sectional area of ​​the outflow branch pipe 210 and / or the outflow main pipe 220 near the heat exchange module 3 is greater than the flow cross-sectional area of ​​the other end away from the heat exchange module 3. For example, in Figure 1 In the example, the flow cross-sectional area of ​​all pipe sections of the outflow main pipe 220 and the outflow branch pipe 210 gradually decreases from the direction near the heat exchange module 3 to the direction away from the heat exchange module 3; or, in the example not shown in the figure, the flow cross-sectional area of ​​some pipe sections of the outflow main pipe 220 and / or the outflow branch pipe 210 may also gradually decrease from the direction near the heat exchange module 3 to the direction away from the heat exchange module 3; or, at least some pipe sections may have a decreasing flow cross-sectional area from the direction near the heat exchange module 3 to the direction away from the heat exchange module 3, which can also achieve the above-mentioned beneficial effects.

[0057] In some implementations, reference Figure 1 and Figure 5 As shown, at least a portion of the flow cross-sectional area of ​​the inlet pipe 1 gradually increases from the end furthest from the heat exchange module 3 to the end facing the heat exchange module 3; and / or, referring to Figure 1 and Figure 6As shown, the flow cross-sectional area of ​​at least a portion of the outflow pipe 2 gradually decreases from the end near the heat exchange module 3 to the end away from the heat exchange module 3. For example, the flow cross-sectional area of ​​the inflow main pipe 110 and / or the inflow branch pipe 120 gradually increases from the end away from the heat exchange module 3 to the end towards the heat exchange module 3; and / or, the flow cross-sectional area of ​​the outflow branch pipe 210 and / or the outflow main pipe 220 gradually decreases from the end near the heat exchange module 3 to the end away from the heat exchange module 3. In this way, i.e., the inflow main pipe 110 and / or the inflow branch pipe 120 adopts an expanding pipe design, and the outflow branch pipe 210 and / or the outflow main pipe 220 adopts a contracting pipe design, the cooperation of the expanding and contracting pipes can reduce pressure loss and increase the flow rate and pressure of the fluid during its flow within the pipe. This can be referred to as... Figure 1 As shown, when the heat exchange medium flows into the heat exchange zone 311 from the inlet main pipe 110 and the inlet branch pipe 120, the fluid velocity of the heat exchange medium will decrease as the pipe gradually expands and the pipe cross-section gradually increases. This reduces the pressure loss of the heat exchange medium, allowing it to remain in the heat exchange zone 311 for a longer time. The heat exchange medium can then fully exchange heat with the three-phase power module in the heat exchange zone 311 before being discharged. When the heat exchange medium has completed heat exchange in the heat exchange zone 311 and is discharged from the outlet branch pipe 210 and the outlet main pipe 220, the fluid velocity will gradually increase as the pipe gradually contracts and the pipe cross-section gradually decreases. This increases the flow rate and pressure of the heat exchange medium, allowing it to be discharged from the outlet branch pipe 210 and the outlet main pipe 220 more quickly.

[0058] In some implementations, reference Figure 1 and Figure 5 As shown, at least a portion of the inlet pipe 1 and / or at least a portion of the outlet pipe 2 are streamlined pipes. For example, the inlet branch pipe 120 and / or the inlet main pipe 110 are streamlined pipes, and / or the outlet branch pipe 210 and / or the outlet main pipe 220 are streamlined pipes. In this way, the streamlined pipe has the advantages of having no sharp corners and no abrupt changes in pipe diameter. That is, the pipe adopts a gradual change in diameter to reduce turbulence and eddies in the heat exchange medium within the pipe, allowing the heat exchange medium to flow smoothly within the pipe.

[0059] In some implementations, reference Figures 1 to 4As shown, the inlet main pipe 110 is connected to the inlet 3111 of the at least two heat exchange zones 311 via inlet branch pipes 120, and / or the outlet main pipe 220 is connected to the outlet 3112 of the at least two heat exchange zones 311 via outlet branch pipes 210. In this way, when the multiple heat exchange zones 311 are arranged in parallel, when the heat exchange medium enters the multiple heat exchange zones 311 through the multiple inlet branch pipes 120, it can perform heat exchange and cooling on the heat exchange components corresponding to the heat exchange zones 311. After the heat exchange and cooling are completed, the medium is discharged through the multiple outlet branch pipes 210 to the outlet main pipe 220. Under this parallel connection, the multiple heat exchange zones 311 can all achieve the advantages of a large heat dissipation coefficient, good cooling effect, and uniform heat dissipation. For example, each heat exchange zone 311 is arranged side by side along the second direction. After multiple heat exchange zones 311 are connected in parallel through multiple inlet branch pipes 120 and outlet branch pipes 210, the heat dissipation effect can be improved by adding heat dissipation pins 6 in a single heat exchange zone 311.

[0060] It should be noted that the specific shape of the heat dissipation pin 6 mentioned in the above embodiments can be selected according to any suitable cross-sectional shape according to actual heat exchange requirements. For example, the cross-section of the heat dissipation pin 6 can be a circular, elliptical or rhomboid structure, and the cross-section is parallel to the first direction and the second direction. In this disclosure, the heat dissipation pin 6 is exemplary as a rhomboid, and one of the diagonals of the rhomboid is parallel to the first direction, so that the heat exchange medium can flow uniformly in the heat exchange area 311, thereby improving the heat exchange and cooling effect.

[0061] In some implementations, reference Figures 1 to 4 As shown, the flow cross-sectional areas of each inlet branch pipe 120 are the same, or the flow cross-sectional area of ​​at least one inlet branch pipe 120 is different from that of the other inlet branch pipes 120; and / or, the flow cross-sectional areas of each outlet branch pipe 210 are the same, or the flow cross-sectional area of ​​at least one outlet branch pipe 210 is different from that of the other outlet branch pipes 210. By using this method of differentiated pipe diameter settings, the problem of uneven flow distribution among multiple inlet branch pipes 120 and / or multiple outlet branch pipes 210 can be reduced, which can be referenced... Figure 1As shown, when both the inlet branch pipe 120 and the outlet branch pipe 210 are arranged in a three-pipe configuration, if the three inlet branch pipes 120 and the three outlet branch pipes 210 are arranged with the same pipe diameter, uneven flow distribution will occur among the three inlet branch pipes 120 and the three outlet branch pipes 210 due to differences in fluid flow direction. Specifically, the inlet branch pipe 120, whose flow direction is closest to that of the inlet main pipe 110, and the outlet branch pipe 210, whose flow direction is closest to that of the outlet main pipe 220, will have the largest fluid flow. Conversely, the inlet branch pipe 120, whose flow direction differs most from that of the inlet main pipe 110, and the outlet branch pipe 210, whose flow direction differs most from that of the outlet main pipe 220, will have the smallest fluid flow. This can be understood as... Figure 1 In this system, the inlet branch pipe 120 and the outlet branch pipe 210, located in the middle, have the largest flow rates, while the two inlet branch pipes 120 and the two outlet branch pipes 210 on either side have relatively smaller flow rates. To address this uneven flow rate, the diameter of the middle inlet branch pipe 120 can be set smaller than that of the two outlet branch pipes 120 on either side. This reduces the flow rate in the middle inlet branch pipe 120, thereby increasing the flow rate in the two outlet branch pipes on either side. Similarly, the diameter of the middle outlet branch pipe 210 can be set smaller than that of the two outlet branch pipes 210 on either side. The flow rate of the two outlet branches 210 on both sides is increased by reducing the flow rate of the middle outlet branch 210, thereby achieving the effect of even flow distribution. In the specific use of this heat exchange device, the diameters of the two inlet branches 120 on both sides can be the same or different. Similarly, the diameters of the two outlet branches 210 on both sides can be the same or different. Specifically, the pipe body with the same diameter or different diameter can be selected according to the actual flow rate of the fluid, so as to achieve even flow distribution among multiple inlet branches 120 and multiple outlet branches 210. This disclosure does not make specific limitations in this regard.

[0062] In some implementations, reference Figure 2 As shown, the heat exchange module 3 includes a housing 320, and multiple heat exchange areas 311 are formed within the housing 320 and arranged side by side along a second direction. This facilitates the integrated arrangement of the heat exchange module 3.

[0063] It should be noted that the shape of the housing 320 can be any suitable shape; for example, the housing 320 can adopt, for example... Figure 1 The rectangular shell shown in the example can also be a shell with curved edges on both sides, or an irregularly shaped shell. The shape can be chosen according to the application scenario of the heat exchange device and the actual space occupied. This disclosure does not make any specific limitation in this regard.

[0064] In some embodiments, the heat exchange zones 311 are isolated from each other, or at least two heat exchange zones 311 are interconnected. In this way, when the heat exchange device performs heat exchange on the heat exchange component, such as a three-phase power module, the three phases of the three-phase power module can be cooled by the multiple interconnected heat exchange zones 311 together, or the three phases of the three-phase power module can be cooled one-to-one by the multiple isolated heat exchange zones 311, that is, the three heat exchange zones 311 are separated from each other. The specific arrangement can be selected according to the actual heat dissipation requirements of the heat exchange component, that is, the heat exchange zones 311 can be interconnected or isolated from each other, and this disclosure does not make a specific limitation in this regard.

[0065] In some implementations, reference Figure 5 and Figure 6 As shown, the plurality of heat exchange zones 311 includes at least two first heat exchange zones 3113 arranged along the second direction, and at least one second heat exchange zone 3114 arranged in the first direction with respect to the at least two first heat exchange zones 3113. In this way, the connection of at least two first heat exchange zones 3113 and at least one second heat exchange zone 3114 can realize the series-parallel or parallel-series arrangement in the above embodiments. Compared with the parallel arrangement, the flow distribution becomes simpler through the series-parallel or parallel-series arrangement, and it can adapt to different layout forms of the heat exchange components to achieve the purpose of optimizing heat exchange. In addition, compared with the parallel embodiment, it can be applied to situations where the inlet pipe 1 and the outlet pipe 2 are far apart and the space in the second direction is slightly small. Specifically, the present disclosure will describe in detail the specific connection methods of parallel-series and series-parallel connections and the specific heat exchange process below.

[0066] For example, the at least two first heat exchange regions 3113 mentioned above can be region A, and the at least one second heat exchange region 3114 mentioned above can be region B. Region A and region B can be arranged in any suitable manner in the first direction, such as being arranged sequentially or alternating regularly / irregularly. For example, it can be region A-region B, or region B-region A, or region A-region B-region A-region B, or region A-region B-region B-region A, etc. This disclosure does not make any specific limitation in this regard.

[0067] It should be noted that the two first heat exchange regions 3113 and one second heat exchange region 3114 mentioned in this disclosure are exemplary. In embodiments not shown in the figures, the number of first heat exchange regions 3113 can also be any number of two or more, and the number of second heat exchange regions 3114 can also be any number of one or more. This disclosure does not make any specific limitation in this regard.

[0068] In some implementations, reference Figure 5 As shown, the inlet pipe 1, at least two first heat exchange zones 3113, at least one second heat exchange zone 3114, and the outlet pipe 2 are arranged sequentially along the first direction. This arrangement allows for the parallel-to-connection configuration of the heat exchange device. In this configuration, after the heat exchange medium enters the heat exchange device via the inlet main pipe 110, it is first diverted to two inlet branch pipes 120 and then enters the two first heat exchange zones 3113 to heat and cool the components corresponding to those zones. After heat exchange and cooling, the two streams of heat exchange medium then jointly enter the second heat exchange zone 3114 to heat and cool the components corresponding to that zone. In this heat exchange and cooling method, although the two heat exchange media will be heated after passing through the two first heat exchange zones 3113, the flow rate of the heat exchange media passing through the second heat exchange zone 3114 will be increased after the two heat exchange media enter the second heat exchange zone 3114 together. This can ensure the heat exchange and cooling effect on the heat exchange components corresponding to the second heat exchange zone 3114, thereby improving the overall temperature uniformity of the heat exchange components corresponding to the first heat exchange zone 3113 and the second heat exchange zone 3114.

[0069] In some implementations, reference Figure 5 As shown, at least two first heat exchange zones 3113 are connected to adjacent second heat exchange zones 3114 via at least two intermediate pipes 4. In this way, the intermediate pipes 4 can connect the two first heat exchange zones 3113 and the adjacent second heat exchange zone 3114, meaning that when the heat exchange medium flows from the two first heat exchange zones 3113 towards the second heat exchange zone 3114, the heat exchange medium can flow through at least two intermediate pipes 4. (Refer to...) Figure 5 As shown, the two intermediate pipes 4 can approach each other in a first direction from the first heat exchange zone 3113 toward the second heat exchange zone 3114, thereby enabling the heat exchange medium to flow from the first heat exchange zone 3113 to the second heat exchange zone 3114.

[0070] In some implementations, reference Figure 5 As shown, the cross-sectional area of ​​the intermediate pipe 4 gradually decreases from the end furthest from the second heat exchange region 3114 to the end closest to the second heat exchange region 3114. In this way, with a parallel-to-serial connection, the intermediate pipe 4 can be constructed as a tapered pipe as described above. That is, as the heat exchange medium flows through the inner wall of the pipe, the cross-section of the pipe gradually decreases, thereby increasing the flow velocity of the heat exchange medium in the pipe. This increases the flow rate and pressure of the heat exchange medium, allowing it to flow more quickly from the first heat exchange region 3113 to the second heat exchange region 3114, thus improving the heat exchange and cooling of the heat exchange components corresponding to the second heat exchange region 3114.

[0071] Furthermore, the intermediate pipe 4 can also adopt the streamlined pipe mentioned in the above embodiments, which can reduce the turbulence and eddies of the fluid flowing through the intermediate pipe, so as to allow the heat exchange medium to flow smoothly. In addition, the intermediate pipe 4 can extend in the first direction, and its extension method includes, but is not limited to, straight, curved or broken line.

[0072] In some implementations, reference Figure 6 As shown, the inlet pipe 1, at least one second heat exchange zone 3114, at least two first heat exchange zones 3113, and the outlet pipe 2 are arranged sequentially along a first direction. This arrangement allows for a series-parallel configuration of the heat exchange device. In this configuration, after the heat exchange medium enters the heat exchange device via the inlet pipe 1, it first enters the second heat exchange zone 3114 to cool the heat exchange components corresponding to that zone. After cooling, the single stream of heat exchange medium is split and enters the two first heat exchange zones 3113 to cool the heat exchange components corresponding to those zones. This cooling method is suitable for situations where the heat exchange demand of the heat exchange components corresponding to the second heat exchange zone 3114 is high; that is, after the heat exchange medium flows into the heat exchange device from the inlet pipe 1, it first passes through the second heat exchange zone 3114 to preferentially dissipate heat from the heat exchange components corresponding to that zone.

[0073] In some implementations, reference Figure 6 As shown, at least two outlets of at least one second heat exchange zone 3114 are connected to the inlet of an adjacent first heat exchange zone 3113 via at least two intermediate pipes 4. In this way, the intermediate pipes 4 can connect the two first heat exchange zones 3113 and the adjacent second heat exchange zone 3114, meaning that when the heat exchange medium flows from the second heat exchange zone 3114 towards the two first heat exchange zones 3113, the heat exchange medium can flow through at least two intermediate pipes 4. (Refer to...) Figure 6 As shown, the two intermediate pipes 4 can also refer to the above-described parallel and series embodiment, that is, the two intermediate pipes approach each other in the first direction from the first heat exchange region 3113 toward the second heat exchange region 3114, thereby playing the role of diverting the heat exchange medium from the second heat exchange region 3114 to the two first heat exchange regions 3113.

[0074] In some implementations, reference Figure 6As shown, the cross-sectional area of ​​the intermediate pipe 4 gradually increases from the end furthest from the first heat exchange region 3113 to the end closer to the first heat exchange region 3113. In this way, with a series-parallel connection, the intermediate pipe 4 can be constructed as a gradually expanding pipe as described above. This means that as the heat exchange medium flows through the inner wall of the pipe, the cross-section gradually increases, reducing the flow velocity of the heat exchange medium within the pipe and thus reducing pressure loss. The heat exchange medium can then remain in the first heat exchange region 3113 for a longer period, allowing for sufficient heat exchange and cooling of the heat-receiving component before being discharged. The gradual increase in the cross-sectional area of ​​the intermediate pipe 4 from the end furthest from the first heat exchange region 3113 to the end closer to the first heat exchange region 3113 can also be understood as the gradual decrease in the cross-sectional area of ​​the intermediate pipe 4 from the end furthest from the second heat exchange region 3114 to the end closer to the second heat exchange region 3114. Furthermore, the intermediate pipe 4 can also adopt the streamlined pipe mentioned in the above embodiments, which can reduce the turbulence and eddies of the fluid flowing through the intermediate pipe, so as to allow the heat exchange medium to flow smoothly. In addition, the intermediate pipe 4 can extend in the first direction, and its extension method includes, but is not limited to, straight, curved or broken line.

[0075] In some implementations, reference Figure 5 and Figure 6 As shown, the heat exchange module 3 includes a first housing 330 and a second housing 340. At least two first heat exchange regions 3113 are formed in the first housing 330, and a second heat exchange region 3114 is formed in the second housing 340. This facilitates the integration of the heat exchange regions 311 and their spatial arrangement.

[0076] It should be noted that the specific shapes of the first housing 330 and the second housing 340 can be selected according to any suitable housing shape based on the actual installation location and the size of the installation space of the heat exchange device. For example, in Figure 5 and Figure 6 In the embodiments shown, the first housing 330 and the second housing 340 can be rectangular housings, or the first housing 330 and the second housing 340 can also be constructed as circular housings, elliptical housings or irregular housings. Furthermore, the specific shapes of the first housing 330 and the second housing 340 can be the same or different, and this disclosure does not impose any specific limitations on them.

[0077] In some implementations, reference Figure 5 and Figure 6As shown, each of the first heat exchange regions 3113 is isolated from each other, or at least two first heat exchange regions 3113 are interconnected. In this way, when the heat exchange medium flows through the first heat exchange region 3113, multiple interconnected first heat exchange regions 3113 can be used together to perform heat exchange and cooling on multiple corresponding heat exchange components, or multiple isolated first heat exchange regions 3113 can be used to perform heat exchange and cooling on multiple corresponding heat exchange components one-to-one. Specifically, the choice between connecting multiple first heat exchange regions 3113 or separating multiple first heat exchange regions 3113 can be made according to the specific heat exchange requirements of the heat exchange components. This disclosure does not make specific limitations in this regard.

[0078] A second aspect of this disclosure provides a power component, with reference to Figures 1 to 6 As shown, the power assembly includes a power module 5 and the heat exchange device mentioned in the above specific embodiment. The power assembly is arranged in close contact with the corresponding heat exchange area. For example, refer to... Figure 1 As shown, power modules 5 are attached to heat exchange regions 311 in a one-to-one correspondence. Alternatively, each power module 5 may be attached to multiple heat exchange regions 311, or each heat exchange region 311 may be attached to multiple power modules 5. This disclosure does not impose specific limitations in this regard. In the embodiments of this disclosure, the power module 5 may include three independent phases of a three-phase power module. The three independent phases may be attached to the heat exchange regions 311 in a one-to-one correspondence to enable heat exchange and cooling of the three independent phases. Furthermore, the specific attachment method between the power module 5 and the heat exchange region 311 can be any suitable method. For example, the power module 5 may be attached to the heat exchange region 311 by welding, or it may be attached to the heat exchange region 311 by a detachable locking method. This disclosure does not impose specific limitations in this regard.

[0079] A third aspect of this disclosure provides a motor controller that includes the power component of the above-described specific embodiments, and the power component has all the beneficial effects of the above-described embodiments. The motor controller can be applied to vehicles, as well as to multiple industries such as power, metallurgy, petroleum, and chemical industries in industrial automation, and can also be applied to the control of household appliances, such as air conditioning heat dissipation.

[0080] A fourth aspect of this disclosure provides a vehicle that includes the heat exchange device, power assembly, or motor controller described in the above-described specific embodiments. The vehicle may be a gasoline or diesel vehicle among fuel-powered vehicles, or a plug-in hybrid, range-extended, or pure electric vehicle among new energy vehicles.

[0081] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0082] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0083] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A heat exchange device, characterized in that, include: The inlet pipe extends along the first direction; The outflow pipe extends along the first direction; as well as A heat exchange module is disposed between the inlet pipe and the outlet pipe. The heat exchange module has multiple heat exchange areas, at least two of which are arranged along a second direction, and the first direction forms an angle with the second direction.

2. The heat exchange device according to claim 1, characterized in that, At least a portion of the inlet pipe has a flow cross-sectional area at the end furthest from the heat exchange module that is less than or equal to the flow cross-sectional area at the other end closest to the heat exchange module; and / or, At least a portion of the outflow pipe has a flow cross-sectional area at the end closest to the heat exchange module that is greater than or equal to the flow cross-sectional area at the end furthest from the heat exchange module.

3. The heat exchange device according to claim 1, characterized in that, At least a portion of the flow cross-sectional area of ​​the inlet pipe gradually increases from the end furthest from the heat exchange module to the end facing the heat exchange module; and / or, At least a portion of the outflow pipe has a flow cross-sectional area that gradually decreases from one end near the heat exchange module to the other end away from the heat exchange module.

4. The heat exchange device according to claim 1, characterized in that, At least part of the inlet pipe and / or at least part of the outlet pipe are streamlined pipes.

5. The heat exchange device according to any one of claims 1-4, characterized in that, The inlet piping includes a main inlet pipe and inlet branch pipes, wherein the main inlet pipe is connected to the inlet of the at least two heat exchange zones via the inlet branch pipes, and / or The outflow pipeline includes an outflow branch pipe and an outflow main pipe, and the outflow main pipe is connected to the outlet of the at least two heat exchange zones through the outflow branch pipe.

6. The heat exchange device according to claim 5, characterized in that, The flow cross-sectional area of ​​each of the aforementioned inlet branch pipes is the same, or the flow cross-sectional area of ​​at least one of the aforementioned inlet branch pipes is different from the flow cross-sectional area of ​​the remaining aforementioned inlet branch pipes; and / or, The flow cross-sectional area of ​​each of the outflow branches is the same, or the flow cross-sectional area of ​​at least one of the outflow branches is different from that of the other outflow branches.

7. The heat exchange device according to claim 5, characterized in that, The heat exchange module includes a housing, and the plurality of heat exchange areas are formed within the housing.

8. The heat exchange device according to claim 7, characterized in that, Each of the heat exchange zones is isolated from the others, or at least two of the heat exchange zones are interconnected.

9. The heat exchange device according to any one of claims 1-4, characterized in that, The plurality of heat exchange regions include at least two first heat exchange regions arranged along a second direction, and at least one second heat exchange region arranged with the at least two first heat exchange regions in a first direction.

10. The heat exchange device according to claim 9, characterized in that, The inlet pipe, the at least two first heat exchange zones, the at least one second heat exchange zone, and the outlet pipe are arranged sequentially along a first direction; or... The inlet pipe, the at least one second heat exchange zone, the at least two first heat exchange zones, and the outlet pipe are arranged sequentially along a first direction.

11. The heat exchange device according to claim 9, characterized in that, The at least two first heat exchange zones are connected to adjacent second heat exchange zones via intermediate pipelines.

12. The heat exchange device according to claim 11, characterized in that, The cross-sectional area of ​​the intermediate pipeline gradually decreases from the end furthest from the second heat exchange region to the end closest to the second heat exchange region.

13. The heat exchange device according to claim 9, characterized in that, The heat exchange module includes a first housing and a second housing, wherein at least two first heat exchange regions are formed within the first housing, and a second heat exchange region is formed within the second housing.

14. The heat exchange device according to claim 13, characterized in that, Each of the first heat exchange zones is isolated from the others, or at least two of the first heat exchange zones are interconnected.

15. The heat exchange device according to claim 1, characterized in that, The first direction is perpendicular to the second direction.

16. The heat exchange device according to claim 1, characterized in that, The heat exchange module has heat exchange channels that form the plurality of heat exchange regions.

17. A power component, characterized in that, It includes a power module and a heat exchange device as described in any one of claims 1-16, wherein the power module is arranged in close contact with the corresponding heat exchange area.

18. A motor controller, characterized in that, Includes the power components as described in claim 17.

19. A vehicle, characterized in that, Includes the heat exchange device according to any one of claims 1-16, the power component according to claim 17, or the motor controller according to claim 18.

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