CN221354820U - Heat exchanger, power module assembly and vehicle - Google Patents

Heat exchanger, power module assembly and vehicle Download PDF

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Publication number
CN221354820U
CN221354820U CN202322633845.1U CN202322633845U CN221354820U CN 221354820 U CN221354820 U CN 221354820U CN 202322633845 U CN202322633845 U CN 202322633845U CN 221354820 U CN221354820 U CN 221354820U
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heat exchange
inflow
outflow
heat
channel
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CN202322633845.1U
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Chinese (zh)
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石小川
骆传名
杨胜松
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Jinan Byd Semiconductor Technology Co ltd
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Jinan Byd Semiconductor Technology Co ltd
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Abstract

The utility model discloses a heat exchanger, a power module assembly and a vehicle, wherein at least one heat exchange medium inlet, at least one heat exchange medium outlet, at least one inflow channel, at least one outflow channel and a plurality of heat exchange cavities are formed on the heat exchanger, each heat exchange cavity is provided with at least one heat exchange cavity inlet and at least one heat exchange cavity outlet, the inflow channel is connected between the heat exchange medium inlet and the heat exchange cavity inlet, the outflow channel is connected between the heat exchange cavity outlet and the heat exchange medium outlet, the heat exchange medium inlet and the inflow channel are positioned on one side of the plurality of heat exchange cavities along the second direction, the heat exchange medium outlet and the outflow channel are positioned on the other side of the plurality of heat exchange cavities along the second direction, and the heat exchange medium inlet, the heat exchange medium outlet, the inflow channel, the outflow channel and the plurality of heat exchange cavities are symmetrical with respect to a central plane extending along the second direction. According to the heat exchanger provided by the utility model, the heat exchange effect of each heat exchanger is the same, and the heat exchange effect is better.

Description

Heat exchanger, power module assembly and vehicle
Technical Field
The utility model relates to the technical field of power modules, in particular to a heat exchanger, a power module assembly and a vehicle.
Background
The power module plays an important role in a power semiconductor device and is widely applied to the fields of frequency conversion, energy conservation and the like of new energy automobiles. The heat dissipation performance of the power module affects both the output performance and the service life of the power module. The traditional power module is of a three-phase full-bridge structure, and in the working process of the power module, the cooling liquid in the heat exchanger is usually contacted with the three phases of the power module to take away heat generated by the three phases. However, in the process that the cooling liquid of the heat exchanger flows from one side of the power module to the other side, uneven temperature of three phases can be caused, and a large temperature difference exists between the three phases, so that the service performance of the power module is affected.
The heat exchanger is a component for realizing heat transfer between two or more objects with different temperatures, and is used for transferring heat from an object with higher temperature to an object with lower temperature, so that the temperature of the object reaches the index specified by the process, thereby meeting the requirements of process conditions. In the related art, a heat exchange medium in a heat exchanger is usually used to contact with an object to be heated or cooled, so that heat exchange is realized between the heat exchange medium and the object to be heat-exchanged. However, in the actual heat exchange process, there are defects of poor heat exchange effect, complex structure and the like.
Disclosure of utility model
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide a heat exchanger, which has a simple structure, and the amount of heat exchange medium flowing into a plurality of heat exchange cavities from the heat exchange medium inlet is the same, so that the heat exchange effect of each heat exchanger is approximately the same, and the heat exchange effect is better.
Another object of the present utility model is to provide a power module assembly employing the above heat exchanger.
It is yet another object of the present utility model to provide a vehicle employing the above power module assembly.
According to the heat exchanger of the embodiment of the first aspect of the utility model, at least one heat exchange medium inlet, at least one heat exchange medium outlet, at least one inflow channel, at least one outflow channel and a plurality of heat exchange cavities are formed on the heat exchanger, each heat exchange cavity is provided with at least one heat exchange cavity inlet and at least one heat exchange cavity outlet, the inflow channel is connected between the heat exchange medium inlet and the heat exchange cavity inlet, the outflow channel is connected between the heat exchange cavity outlet and the heat exchange medium outlet, the plurality of heat exchange cavities are arranged at intervals along a first direction, the heat exchange medium inlet and the inflow channel are positioned on one side of the plurality of heat exchange cavities along a second direction, the heat exchange medium outlet and the outflow channel are positioned on the other side of the plurality of heat exchange cavities along the second direction, the second direction is perpendicular to the first direction, and the heat exchange medium inlet, the heat exchange medium outlet, the inflow channel and the outflow channel are symmetrical about a central plane extending along the second direction.
According to the heat exchanger provided by the embodiment of the utility model, the heat exchange cavity is simple in structure, mass production of the heat exchange cavity is facilitated, and the production efficiency of the heat exchanger is improved. Further, by providing the heat exchange medium inlet, the heat exchange medium outlet, the inflow channel, the outflow channel and the plurality of heat exchange chambers symmetrically with respect to a center plane in which the plurality of heat exchange chambers extend in the second direction, the amount of the heat exchange medium flowing from the heat exchange medium inlet into the plurality of heat exchange chambers is made substantially the same, so that the heat exchange effects of the plurality of heat exchange chambers are made substantially the same. And the independent flows of the heat exchange media in the heat exchange cavities are not affected or are less affected, and when the heat exchanger is used for the power module, the heat dissipation condition states of the phase lines can be kept consistent, so that the effect of uniform temperature of the phase lines is greatly controlled, and the service performance of the power module is improved.
According to some embodiments of the utility model, the at least one inflow channel comprises a first inflow channel, a first inflow inlet and a plurality of first inflow outlets are formed on the first inflow channel, the first inflow inlet is communicated with the heat exchange medium inlet, and the plurality of first inflow outlets are respectively communicated with the heat exchange cavity inlets of the plurality of heat exchange cavities; and/or, the at least one outflow channel comprises a first outflow channel, the first outflow channel extends along the first direction, a first outflow outlet and a plurality of first outflow inlets are formed on the first outflow channel, the first outflow outlet is communicated with the heat exchange medium outlet, and the plurality of first outflow inlets are respectively communicated with the heat exchange cavity outlets of the plurality of heat exchange cavities.
According to some embodiments of the utility model, the first inflow channel comprises a first main inflow channel section and a plurality of first split inflow channel sections, the first main inflow channel section extends along the first direction, the plurality of first split inflow channel sections each extend along the second direction, one ends of the plurality of first split inflow channel sections are connected with the first main inflow channel section, and the other ends of the plurality of first split inflow channel sections are respectively communicated with the heat exchange cavity inlets of the plurality of heat exchange cavities; and/or, the first outflow channel comprises a first main outflow channel section and a plurality of first shunting outflow channel sections, the first main outflow channel section extends along the first direction, the first shunting outflow channel sections extend along the second direction, one ends of the first shunting outflow channel sections are connected with the first main outflow channel section, and the other ends of the first shunting outflow channel sections are respectively communicated with the outlets of the heat exchange cavities.
According to some embodiments of the utility model, the cross-sectional area of the first inflow inlet is equal to the cross-sectional area of the heat exchange medium inlet; and/or the cross-sectional area of the first outflow outlet is equal to the cross-sectional area of the heat exchange medium outlet.
According to some embodiments of the utility model, the number of first inflow outlets is N 1, and the cross-sectional area of each of the first inflow outlets is 1/N 1 of the cross-sectional area of the first inflow inlet; and/or the number of the first outflow inlets is N 2, and the cross-sectional area of each first outflow inlet is 1/N 2 of the cross-sectional area of the first outflow outlet.
According to some embodiments of the utility model, the inflow channel further comprises a second inflow channel, a second inflow inlet and a plurality of second inflow outlets are formed on the second inflow channel, the second inflow inlet is communicated with the first inflow outlet corresponding to the first inflow channel, and the plurality of second inflow outlets are respectively communicated with the heat exchange cavity inlets of at least two adjacent heat exchange cavities; and/or the outflow channel further comprises a second outflow channel, a second outflow outlet and a plurality of second outflow inlets are formed on the second outflow channel, the second outflow outlet is communicated with the first outflow inlet corresponding to the first outflow channel, and the plurality of second outflow inlets are respectively communicated with the heat exchange cavity outlets of at least two adjacent heat exchange cavities.
According to some embodiments of the utility model, the second inflow channel comprises a plurality of inflow channel sections, one ends of the plurality of inflow channel sections are connected with each other and form the second inflow inlet, and the other ends of the plurality of inflow channel sections are respectively a plurality of second inflow outlets; and/or the second outflow channel comprises a plurality of outflow channel sections, one ends of the plurality of outflow channel sections are connected with each other and form the second outflow outlet, and the other ends of the plurality of outflow channel sections are respectively provided with a plurality of second outflow inlets.
According to some embodiments of the utility model, the inflow channel sections are two, extending obliquely in a direction from the heat exchange medium inlet towards the heat exchange medium outlet, the two inflow channel sections being directed away from each other; and/or the number of the outflow channel sections is two, and the two outflow channel sections extend obliquely towards each other in the direction from the heat exchange medium inlet to the heat exchange medium outlet.
According to some embodiments of the utility model, the two inflow channel sections comprise a first inflow channel section and a second inflow channel section, the first inflow channel section being located on a side of the second inflow channel section adjacent to the central plane, the cross-sectional area of the first inflow channel section being half the cross-sectional area of the second inflow channel section; and/or the two outflow channel sections comprise a first outflow channel section and a second outflow channel section, the first outflow channel section being located on a side of the second outflow channel section adjacent to the central plane, the cross-sectional area of the first outflow channel section being half the cross-sectional area of the second outflow channel section.
According to some embodiments of the utility model, said other ends of two said inflow channel sections adjacent and connected to different said first inflow outlets are connected to each other; and/or said other ends of two of said outflow channel sections adjacent and connected to different ones of said first outflow inlets are connected to each other.
According to some embodiments of the utility model, the inflow channel further comprises a third inflow channel, a third inflow inlet and a plurality of third inflow outlets are formed on the third inflow channel, the third inflow inlet is communicated with the second inflow outlet corresponding to the second inflow channel, and the plurality of third inflow outlets are respectively communicated with at least one heat exchange cavity; and/or the outflow channel further comprises a third outflow channel, a third outflow outlet and a plurality of third outflow inlets are formed on the third outflow channel, the third outflow outlet is communicated with the second outflow inlet corresponding to the second outflow channel, and the third outflow inlets are respectively communicated with at least one heat exchange cavity.
According to some embodiments of the utility model, the areas of the plurality of heat exchange cavities are equal.
According to some embodiments of the utility model, the heat exchange cavity has a length of l 1 and a width of w 1, wherein l 1、w1 satisfies: l 1≤70mm,40mm≤w1 is less than or equal to 60mm and less than or equal to 50mm.
According to some embodiments of the utility model, the heat exchanger comprises: a body having one side opened; the heat exchange plate is arranged on one side of the body, and the heat exchange plate and the body jointly define the heat exchange medium inlet, the heat exchange medium outlet, the inflow channel, the outflow channel and a plurality of heat exchange cavities.
According to some embodiments of the utility model, the heat exchange plate is provided with a plurality of heat dissipation elements, and the plurality of heat dissipation elements respectively extend into the plurality of heat exchange cavities.
According to some embodiments of the utility model, a distance between an end of each heat dissipation element remote from the heat exchange plate and a bottom wall of the heat exchange cavity is d, wherein d satisfies: d is more than or equal to 0.3mm and less than or equal to 1mm.
According to some embodiments of the utility model, the width of each heat sink in the first direction is w 2, and the length of each heat sink in the second direction is l 2, wherein the l 2、w2 satisfies: l 2≤4mm,0.5mm≤w2 is less than or equal to 1mm and less than or equal to 2mm.
According to some embodiments of the utility model, each of the heat sinks has an elliptical cross-sectional shape.
According to some embodiments of the utility model, the plurality of heat dissipation elements includes a plurality of first heat dissipation element groups and a plurality of second heat dissipation element groups, the plurality of first heat dissipation element groups and the plurality of second heat dissipation element groups are staggered along the second direction, the plurality of first heat dissipation element groups include a plurality of first heat dissipation elements which are spaced along the first direction, the plurality of second heat dissipation element groups include a plurality of second heat dissipation elements which are spaced along the first direction, the plurality of first heat dissipation elements of two adjacent groups of first heat dissipation element groups and the plurality of second heat dissipation elements of two adjacent groups of second heat dissipation element groups are staggered along the first direction, and an included angle between connecting lines between centers of the first heat dissipation elements and centers of two adjacent second heat dissipation elements in the two adjacent groups is α, wherein α satisfies: alpha is more than or equal to 30 degrees and less than or equal to 60 degrees.
A power module assembly according to an embodiment of the second aspect of the present utility model includes: a power module including a plurality of phase lines arranged at intervals along a first direction; the heat exchanger is the heat exchanger according to the embodiment of the first aspect of the present utility model, wherein the phase lines are disposed on the heat exchanger, and the phase lines are respectively opposite to the heat exchange cavities of the heat exchanger.
A vehicle according to an embodiment of a third aspect of the present utility model comprises a power module assembly according to an embodiment of the second aspect of the present utility model described above.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic view of a heat exchanger according to an embodiment of the utility model;
FIG. 2 is a schematic view of another angle of a heat exchanger according to an embodiment of the present utility model;
FIG. 3 is a cross-sectional view of a heat exchanger according to an embodiment of the utility model;
fig. 4 is an enlarged view of a portion a circled in fig. 3;
FIG. 5 is a schematic view of a body of a heat exchanger according to an embodiment of the utility model;
FIG. 6 is a top view of a body of a heat exchanger according to an embodiment of the present utility model;
FIG. 7 is a schematic view of a heat exchanger according to another embodiment of the utility model;
FIG. 8 is a schematic view of a heat exchanger according to yet another embodiment of the utility model;
fig. 9 is a schematic view of a heat exchanger plate of a heat exchanger according to an embodiment of the utility model.
Reference numerals:
100. A heat exchanger;
1. a body; 2. A heat exchange plate; 21. A heat sink;
22. a first heat sink group; 221. A first heat sink;
23. A second heat sink group; 231. A second heat sink;
3. A heat exchange medium inlet; 4. A heat exchange medium outlet;
5. An inflow channel; 51. a first inflow channel; 511. a first inflow inlet; 512. a first inflow/outflow port;
513. a first main inflow channel section; 514. A first split flow channel section;
52. A second inflow channel; 521. A second inflow inlet; 522. A second inflow outlet;
523. An inflow channel section; 5231. A first inflow channel section; 5232. A second inflow channel section;
53. a third inflow channel; 531. A third inflow inlet; 532. A third inflow outlet;
54. A fourth inflow channel; 541. A fourth inflow inlet; 542. A fourth inflow outlet;
6. An outflow channel; 61. a first outflow channel; 611. a first outflow port; 612. a first outflow inlet;
613. a first main outflow channel section; 614. A first split outlet channel section;
62. A second outflow channel; 621. A second outflow outlet; 622. A second outflow inlet;
623. an outflow channel section; 6231. A first outflow channel section; 6232. A second outflow channel section;
63. A third outflow channel; 631. A third outflow outlet; 632. A third outflow inlet;
64. A fourth outflow channel; 641. A fourth outflow outlet; 642. A fourth outflow inlet;
7. A heat exchange cavity; 71. an inlet of the heat exchange cavity; 72. and an outlet of the heat exchange cavity.
Detailed Description
Embodiments of the present utility model are described in detail below, and the embodiments described with reference to the accompanying drawings are exemplary, and a heat exchanger 100 according to an embodiment of the first aspect of the present utility model is described below with reference to fig. 1 to 9.
As shown in fig. 1, 2 and 6-8, according to the heat exchanger 100 of the first aspect of the embodiment of the present utility model, at least one heat exchange medium inlet 3, at least one heat exchange medium outlet 4, at least one inflow channel 5, at least one outflow channel 6 and a plurality of heat exchange chambers 7 are formed on the heat exchanger 100, each heat exchange chamber 7 has at least one heat exchange chamber inlet 71 and at least one heat exchange chamber outlet 72, the inflow channel 5 is connected between the heat exchange medium inlet 3 and the heat exchange chamber inlet 71, the outflow channel 6 is connected between the heat exchange chamber outlet 72 and the heat exchange medium outlet 4, and the plurality of heat exchange chambers 7 are arranged at intervals in a first direction (e.g., left-right direction as shown in fig. 1). In the description of the present utility model, "plurality" means two or more. The following description of the present utility model will take as an example a heat exchange medium inlet 3, a heat exchange medium outlet 4, an inflow channel 5 and an inflow channel 6 formed in the heat exchanger 100. Of course, the heat exchanger may be formed with a plurality of heat exchange medium inlets 3, a plurality of heat exchange medium outlets 4, a plurality of inflow passages 5 and a plurality of inflow passages 6, which may be specifically arranged according to use to better satisfy practical applications.
For example, in the example of fig. 1, three heat exchange chambers 7 are shown, the three heat exchange chambers 7 are arranged at intervals in the left-right direction, each heat exchange chamber 7 is provided with a heat exchange chamber inlet 71 and a heat exchange chamber outlet 72, the heat exchange medium inlet 3 is communicated with the three heat exchange chambers 7 through the inflow channel 5, and the three heat exchange chambers 7 are respectively communicated with the heat exchange medium outlet 4 through the outflow channel 6. When the heat exchanger 100 is used for heat dissipation of a power module, a heat exchange medium is suitable for flowing into the inflow channel 5 from the heat exchange medium inlet 3, and flows into the corresponding heat exchange cavity 7 after being split into the heat exchange cavity inlets 71 of the plurality of heat exchange cavities 7 through the inflow channel 5, and the heat exchange medium exchanges heat with the phase line of the power module in the flowing process of the heat exchange cavity 7 so as to take away heat generated by the phase line of the power module in the working process, and then the heat exchange medium in the plurality of heat exchange cavities 7 flows into the outflow channel 6 through the corresponding heat exchange cavity outlets 72 respectively and flows out of the heat exchanger 100 through the heat exchange medium outlets 4. Therefore, the heat exchange media in each heat exchange cavity 7 are not affected or are less affected, when the heat exchanger 100 is used for a power module, the heat dissipation condition states of the phase lines can be kept consistent, and the temperature difference among the phase lines is reduced, so that the temperatures of the phase lines corresponding to the heat exchange cavities 7 are consistent, the temperature equalizing effect of the phase lines is greatly controlled, and the service performance of the power module is improved.
Referring to fig. 1, the heat exchange medium inlet 3 and the inflow channel 5 are located at one side of the plurality of heat exchange chambers 7 in a second direction (e.g., a front-rear direction shown in fig. 1), the heat exchange medium outlet 4 and the outflow channel 6 are located at the other side of the plurality of heat exchange chambers 7 in the second direction, the second direction being perpendicular to the first direction, and the heat exchange medium inlet 3, the heat exchange medium outlet 4, the inflow channel 5, the outflow channel 6 and the plurality of heat exchange chambers 7 are symmetrical with respect to a center line plane in which the plurality of heat exchange chambers 7 extend in the second direction. For example, in the examples of fig. 1, 5 and 6, the heat exchange medium inlet 3 and the inflow passage 5 are located in front of the plurality of heat exchange chambers 7, the heat exchange medium outlet 4 and the inflow passage 5 are located behind the plurality of heat exchange chambers 7 (of course, the heat exchange medium inlet 3 and the inflow passage 5 may also be located behind the plurality of heat exchange chambers 7, the heat exchange medium outlet 4 and the inflow passage 5 may also be located in front of the plurality of heat exchange chambers 7), and the heat exchange medium inlet 3 and the heat exchange medium outlet 4 are located at the center position of the heat exchange chambers 7 in the left-right direction. Therefore, the heat exchange medium inlet 3 and the heat exchange medium outlet 4 are positioned on the long sides of the heat exchanger 100, so that the distance between the heat exchange medium inlet 3 and the plurality of heat exchange cavities 7 is shortened, and the distance between the plurality of heat exchange cavities 7 and the heat exchange medium outlet 4 is shortened, thereby being beneficial to the flow of the heat exchange medium between the heat exchange medium inlet 3 and the heat exchange medium outlet 4. Meanwhile, by providing the heat exchange medium inlet 3, the heat exchange medium outlet 4, the inflow passage 5, the outflow passage 6, and the plurality of heat exchange chambers 7 symmetrically with respect to a center plane in which the plurality of heat exchange chambers 7 extend in the second direction, the amount of the heat exchange medium flowing from the heat exchange medium inlet 3 into the plurality of heat exchange chambers 7 is made substantially the same, so that the heat exchange effects of the plurality of heat exchange chambers 7 are made substantially the same. In addition, the heat exchange cavity 7 has a simple structure, is beneficial to batch production of the heat exchange cavity 7, and improves the production efficiency of the heat exchanger 100. In addition, the structural design of the inflow channel 5 and the outflow channel 6 can not influence the flow equalizing effect due to the change of the flow velocity when the heat exchange medium enters, and the heat exchange medium has compatibility and practicability.
According to the heat exchanger 100 provided by the embodiment of the utility model, the heat exchange cavity 7 is simple in structure, mass production of the heat exchange cavity 7 is facilitated, and the production efficiency of the heat exchanger 100 is improved. Further, by providing the heat exchange medium inlet 3, the heat exchange medium outlet 4, the inflow passage 5, the outflow passage 6, and the plurality of heat exchange chambers 7 symmetrically with respect to a center plane in which the plurality of heat exchange chambers 7 extend in the second direction, the amount of the heat exchange medium flowing from the heat exchange medium inlet 3 into the plurality of heat exchange chambers 7 is made substantially the same, so that the heat exchange effect of the plurality of heat exchange chambers 7 is made substantially the same. Moreover, the independent flows of the heat exchange media in the heat exchange cavities 7 are not affected or are less affected, and when the heat exchanger 100 is used for a power module, the heat dissipation condition states of the phase lines can be kept consistent, so that the effect of temperature equalization of the phase lines is greatly controlled, and the service performance of the power module is improved.
According to some embodiments of the present utility model, referring to fig. 5 to 8, at least one inflow channel 5 includes a first inflow channel 51, a first inflow inlet 511 and a plurality of first inflow outlets 512 are formed on the first inflow channel 51, the first inflow inlet 511 communicates with the heat exchange medium inlet 3, and the plurality of first inflow outlets 512 communicate with the heat exchange chamber inlets 71 of the plurality of heat exchange chambers 7, respectively. And/or, the at least one outflow channel 6 comprises a first outflow channel 61, the first outflow channel 61 extends along a first direction, a first outflow outlet 611 and a plurality of first outflow inlets 612 are formed on the first outflow channel 61, the first outflow outlet 611 is communicated with the heat exchange medium outlet 4, and the plurality of first outflow inlets 612 are respectively communicated with the heat exchange cavity outlets 72 of the plurality of heat exchange cavities 7.
For example, in the example of fig. 5 to 8, one inflow channel 5 is formed on the heat exchanger 100, the first inflow channel 51 extends in the left-right direction, the first inflow channel 51 is disposed adjacent to the heat exchange medium inlet 3, the first inflow inlet 511 of the first inflow channel 51 communicates with the heat exchange medium inlet 3 adjacent to the heat exchange medium inlet 3, and the plurality of first inflow outlets 512 of the first inflow channel 51 communicate with the corresponding heat exchange chamber inlets 71 adjacent to the plurality of heat exchange chambers 7, respectively. After the heat exchange medium flows from the heat exchange medium inlet 3 to the first inflow inlet 511, the heat exchange medium is split to flow to the plurality of first inflow outlets 512, and then flows into the corresponding heat exchange cavities 7 through the heat exchange cavity inlets 71 of the plurality of heat exchange cavities 7. Therefore, the heat exchange medium in the first inflow channel 51 can flow in a split manner into the plurality of heat exchange cavities 7, so that the heat exchange media in the plurality of heat exchange cavities 7 are not interfered with each other, the heat exchange states in the plurality of heat exchange cavities 7 are more consistent, and the heat exchange effects in the plurality of heat exchange cavities 7 are more consistent. When the heat exchanger 100 is used for a power module, the temperature difference between the phase lines can be reduced, and the heat dissipation performance of the power module is improved, so that the long-term use of the power module is facilitated. In addition, the structure of the first inflow passage 51 is simple, thereby simplifying the structure of the heat exchanger 100.
For example, in the example of fig. 5 to 8, one outflow channel 6 is formed on the heat exchanger 100, the first outflow channel 61 extends in the left-right direction, the first outflow channel 61 is disposed adjacent to the heat exchange medium outlet 4, the first outflow outlet 611 of the first outflow channel 61 communicates with the heat exchange medium outlet 4 adjacent to the heat exchange medium outlet 4, and the plurality of first outflow inlets 612 of the first outflow channel 61 communicate with the corresponding heat exchange chamber outlets 72 adjacent to the plurality of heat exchange chambers 7, respectively. After the heat exchange medium after heat exchange flows to the heat exchange cavity outlets 72 of the corresponding heat exchange cavities 7, the heat exchange medium flows into the first outflow channels 61 through the plurality of first outflow inlets 612, and flows to the heat exchange medium outlets 4 along the first outflow channels 61. Therefore, the heat exchange medium subjected to heat exchange can flow to the heat exchange medium outlet, and the heat exchange mediums flowing into the first outflow channel 61 from the plurality of first outflow inlets 612 cannot interfere with each other, so that the smoothness of the flow of the heat exchange medium in the first outflow channel 61 is improved, and the flow of the heat exchange medium in the heat exchanger 100 is facilitated. Further, the structure of the first outflow passage 61 is simple, thereby simplifying the structure of the heat exchanger 100.
Alternatively, referring to fig. 5-8, the first inflow channel 51 and the first outflow channel 61 are symmetrical about a central plane of the heat exchanger 100 extending in the first direction. That is, the first inflow channel 51 and the second inflow channel 52 are symmetrically disposed along the central axis of the left-right direction of the heat exchanger 100. Therefore, on one hand, the flow path of the heat exchange medium between the first inflow channel 51, the heat exchange cavity 7 and the second inflow channel 52 is shorter, so that the flow of the heat exchange medium in the heat exchanger 100 is facilitated, the heat exchange performance of the heat exchanger 100 is improved, the heat exchange between the heat exchanger 100 and other components is also facilitated, and the service performance of the heat exchanger 100 is further improved.
According to some embodiments of the present utility model, the first inflow channel 51 comprises a first main inflow channel section 513 and a plurality of first split inflow channel sections 514, the first main inflow channel section 513 extending in a first direction, the plurality of first split inflow channel sections 514 each extending in a second direction, one end of each of the plurality of first split inflow channel sections 514 being connected to the first main inflow channel section 513, the other ends of the plurality of first split inflow channel sections 514 being respectively in communication with the heat exchange chamber inlets 71 of the plurality of heat exchange chambers 7. And/or, the first outflow channel 61 comprises a first main outflow channel section 613 and a plurality of first shunt outflow channel sections 614, the first main outflow channel section 613 extends along a first direction, the plurality of first shunt outflow channel sections 614 extend along a second direction, one ends of the plurality of first shunt outflow channel sections 614 are connected with the first main outflow channel section 613, and the other ends of the plurality of first shunt outflow channel sections 614 are respectively communicated with the heat exchange cavity outlets 72 of the plurality of heat exchange cavities 7.
For example, in the example of fig. 5 to 8, the first main inflow channel section 513 extends in the left-right direction, both left and right ends of the first main inflow channel section 513 are respectively connected to the above-described one ends of the plurality of first split inflow channel sections 514 (i.e., the front ends of the plurality of first split inflow channel sections 514), the first split inflow channel sections 514 may be provided in four, the four first split inflow channel sections 514 are arranged in the left-right direction, and the four first split inflow channel sections 514 each extend in the front-rear direction, and the above-described other ends of the four first split inflow channel sections 514 (i.e., the rear ends of the plurality of first split inflow channel sections 514) are respectively communicated with the three heat exchange chambers 7. So configured, on the one hand, the heat exchange medium may flow from the first main inflow channel section 513 through the plurality of first split inflow channel sections 514 and then flow into the heat exchange cavities 7, so that the temperatures of the heat exchange mediums in the respective heat exchange cavities 7 are substantially the same, and the heat exchange effects of the plurality of heat exchange cavities 7 are substantially the same. On the other hand, the first main inflow channel section 513 and the first sub-inflow channel section 514 have simple structures, further simplifying the structure inside the heat exchanger 100, thereby improving the production efficiency of the heat exchanger 100.
For example, in the example of fig. 5 to 8, the first main outflow channel section 613 extends in the left-right direction, both left and right ends of the first main outflow channel section 613 are respectively connected to the above-mentioned one ends of the plurality of first outflow channel sections 614 (i.e., rear ends of the plurality of first outflow channel sections 614), the first outflow channel sections 614 may be provided in four, the four first outflow channel sections 614 are arranged in the left-right direction, and the four first outflow channel sections 614 each extend in the front-rear direction, and the above-mentioned other ends of the four first outflow channel sections 614 (i.e., front ends of the plurality of first outflow channel sections 614) are respectively communicated with the three heat exchange chambers 7. So set up, on the one hand, the heat transfer medium through the heat exchange can flow into in the first main outflow channel section 613 from a plurality of first reposition of redundant personnel outflow channel sections 614 respectively to make the heat transfer medium in each heat transfer chamber 7 can flow out through a plurality of first reposition of redundant personnel outflow channel sections 614 respectively, reduced the interference of the heat transfer medium between a plurality of heat transfer chambers 7, thereby improved the smoothness that the heat transfer medium flows out from outflow channel 6, be favorable to the normal use of heat exchanger 100 more. On the other hand, the first main outflow channel section 613 and the first sub outflow channel section 614 have simple structures, further simplifying the structure inside the heat exchanger 100, thereby improving the production efficiency of the heat exchanger 100.
Alternatively, referring to fig. 5-8, the first main inflow channel section 513 and the first main outflow channel section 613 are symmetrical about a central plane of the heat exchanger 100 extending in the first direction, and the plurality of first shunt-in channel sections 514 and the plurality of first shunt-out channel sections 614 are symmetrical about a central plane of the heat exchanger 100 extending in the first direction. That is, the first main inflow channel section 513 and the first main outflow channel 6, and the plurality of first split inflow channel sections 514 and the plurality of first split outflow channel sections 614 are disposed symmetrically along the central axis of the left-right direction of the heat exchanger 100, and the heat exchange chamber inlets 71 of the plurality of heat exchange chambers 7 are located at the center positions of the corresponding heat exchange chambers 7 in the left-right direction, respectively, and the heat exchange chamber outlets 72 of the plurality of heat exchange chambers 7 are located at the center positions of the corresponding heat exchange chambers 7 in the left-right direction, respectively. Therefore, the heat exchanger 100 has symmetrical structure, which is beneficial to mass production of the heat exchanger 100. In addition, the heat exchange medium flows into the heat exchange cavity 7 from the center of the corresponding heat exchange cavity 7 along the left-right direction, so that the heat exchange medium can flow to each position in the corresponding heat exchange cavity 7, the heat exchange between the heat exchange medium and other components is facilitated, meanwhile, the flow path of the heat exchange medium is reasonable in design, and the heat exchange efficiency of the plurality of heat exchange cavities 7 is further improved.
According to some embodiments of the utility model, the cross-sectional area of the first inflow inlet 511 is equal to the cross-sectional area of the heat exchange medium inlet 3. And/or the cross-sectional area of the first outflow outlet 611 is equal to the cross-sectional area of the heat exchange medium outlet 4.
The above-described arrangement of the first inflow inlet 511 and the first outflow outlet 611 includes the following three cases: the cross-sectional area of the first, only first inflow inlet 511 is equal to the cross-sectional area of the heat exchange medium inlet 3, and the cross-sectional area of the first outflow outlet 611 is not particularly limited (not shown). The cross-sectional area of the second, only first outflow port 611 is equal to the cross-sectional area of the heat exchange medium outlet 4, and the cross-sectional area of the first inflow port 511 is not particularly limited (not shown). Third, the cross-sectional area of the first inflow inlet 511 is equal to the cross-sectional area of the heat exchange medium inlet 3, and the cross-sectional area of the first outflow outlet 611 is equal to the cross-sectional area of the heat exchange medium outlet 4 (as shown in fig. 6). By this arrangement, the flow condition of the heat exchange medium at the heat exchange medium inlet 3 is substantially identical to the flow condition of the heat exchange medium at the first inflow inlet 511, for example, the flow rate of the heat exchange medium in unit time at the heat exchange medium inlet 3 is substantially identical to the flow rate of the heat exchange medium in unit time at the first inflow inlet 511, so that the influence on the flow of the heat exchange medium due to the change of the flow cross section of the heat exchange medium is avoided, the heat exchange medium at the heat exchange medium inlet 3 can flow into the first inflow channel 51 smoothly in a large amount, the use effect of the heat exchanger 100 is improved, and the normal use of the heat exchanger 100 is also facilitated. Similarly, the heat exchange medium after heat exchange can smoothly flow out of the heat exchanger 100 from the first outflow outlet 611 and the heat exchange medium outlet 4, so that the flow efficiency of the heat exchange medium is improved, and the smooth heat exchange of the heat exchanger 100 is facilitated. It should be noted that the cross-sectional area of the first inflow inlet 511, the cross-sectional area of the heat exchange medium inlet 3, the cross-sectional area of the first outflow outlet 611, and the cross-sectional area of the heat exchange medium outlet 4 may be specifically set according to the use (e.g., in combination with the actual size of the heat exchanger 100) to better satisfy the practical application.
According to some embodiments of the utility model, the number of first inflow outlets 512 is N 1, and the cross-sectional area of each first inflow outlet 512 is 1/N 1 of the cross-sectional area of the first inflow inlet 511. And/or the number of first outflow inlets 612 is N 2, the cross-sectional area of each first outflow inlet 612 being 1/N 2 of the cross-sectional area of the first outflow outlet 611.
For example, in the example of fig. 5 to 8, the number of the first inflow and outflow ports 512 is two, and the two first inflow and outflow ports 512 are respectively communicated with the heat exchange chamber inlets 71 of the three heat exchange chambers 7, and the cross-sectional area of each of the first inflow and outflow ports 512 is 1/2 of the cross-sectional area of the first inflow and outflow port 511. By the arrangement, the heat exchange medium flowing into the first inflow channel 51 from the heat exchange medium inlet 3 can be more evenly distributed to the first inflow outlets 512 so as to be more evenly distributed into the heat exchange cavities 7, namely the quantity of the heat exchange medium flowing into the heat exchange cavities 7 in unit time is approximately the same, so that the temperature equalizing effect in the heat exchange cavities 7 is greatly controlled, the heat exchange effect in the heat exchange cavities 7 is approximately the same, and the service performance of the heat exchange cavities 7 is further improved.
For example, in the example of fig. 5 to 8, the number of the first outflow inlets 612 is two, and the two first outflow inlets 612 are respectively communicated with the heat exchange chamber outlets 72 of the three heat exchange chambers 7, and the cross-sectional area of each of the first outflow inlets 612 is 1/2 of the cross-sectional area of the first outflow outlet 611. The arrangement is that the amount of the heat exchange medium flowing from the plurality of first outflow inlets 612 to the first outflow channel 61 is approximately the same in unit time, that is, the amount of the heat exchange medium flowing from the plurality of heat exchange cavities 7 to the first outflow channel 61 is approximately the same, and the heat exchange conditions in the plurality of heat exchange cavities 7 are approximately the same, so that the heat exchange difference between the plurality of heat exchange cavities 7 caused by different outflow states of part of the heat exchange cavities 7 and other heat exchange cavities 7 is avoided, when the heat exchanger 100 is used for a power module, the temperature difference between a plurality of phase lines corresponding to the plurality of heat exchange cavities 7 can be effectively reduced, the temperature equalizing effect of the plurality of phase lines is more effectively controlled, the service performance of the power module is further improved, and the service life of the power module is prolonged.
According to some embodiments of the present utility model, referring to fig. 5 to 8, the inflow channel 5 further includes a second inflow channel 52, and a second inflow inlet 521 and a plurality of second inflow outlets 522 are formed on the second inflow channel 52, wherein the second inflow inlet 521 communicates with the first inflow outlet 512 corresponding to the first inflow channel 51, and the plurality of second inflow outlets 522 communicate with the heat exchange cavity inlets 71 of at least two adjacent heat exchange cavities 7, respectively. And/or, the outflow channel 6 further includes a second outflow channel 62, and a second outflow outlet 621 and a plurality of second outflow inlets 622 are formed on the second outflow channel 62, the second outflow outlet 621 communicates with the corresponding first outflow inlet 612 of the first outflow channel 61, and the plurality of second outflow inlets 622 communicate with the heat exchange chamber outlets 72 of at least two adjacent heat exchange chambers 7, respectively.
For example, in the example of fig. 5 to 8, two second inflow passages 52 are provided, the two second inflow passages 52 being located at both ends of the first inflow passage 51 in the first direction, respectively, one second inflow inlet 521 and two second inflow outlets 522 being formed on the second inflow passage 52, each second inflow outlet 522 being in communication with the heat exchange chamber inlets 71 of the adjacent two heat exchange chambers 7, respectively. The flow path of the heat exchange medium flowing in from the heat exchange medium inlet 3 in the inflow passage 5 is approximately: flows into the first inflow channel 51 through the heat exchange medium inlet 3 and the first inflow inlet 511 in sequence, flows into the plurality of first inflow outlets 512 in the first inflow channel 51, flows into the corresponding second inflow channel 52 through the corresponding second inflow inlet 521, and flows into the plurality of heat exchange cavities 7 through the plurality of second inflow outlets 522 in sequence. Therefore, the heat exchange medium flowing in from the heat exchange medium inlet 3 can be more uniformly distributed into the plurality of heat exchange cavities 7 through the first inflow channel 51 and the second inflow channel 52, so that the heat exchange effect in the plurality of heat exchange cavities 7 is more uniform. In addition, the flow path of the heat exchange medium is reasonable in design, so that the heat exchange medium can orderly flow between the heat exchange medium inlet 3 and the plurality of heat exchange cavity inlets 71, and the smoothness of the flow of the heat exchange medium is improved. In addition, the second inflow channel 52 has a simple structure, which is advantageous for the production process of the heat exchanger 100.
For example, in the example of fig. 5 to 8, the second outflow path 62 is provided in two, the two second outflow paths 62 are respectively located at both ends of the first outflow path 61 in the first direction, one second outflow outlet 621 and two second outflow inlets 622 are formed on the second outflow path 62, and each second outflow inlet 622 is respectively communicated with the heat exchange chamber inlets 71 of the adjacent two heat exchange chambers 7. The flow path of the heat exchange medium after heat exchange in the heat exchange cavity 7 in the outflow channel 6 is approximately as follows: the heat exchange medium in the plurality of heat exchange chambers 7 flows into the second outflow channel 62 through the plurality of heat exchange chamber outlets 72 and the plurality of second outflow inlets 622, respectively, and then flows into the first outflow channel 61 through the second outflow outlet 621 and the corresponding first outflow inlet 612, and then flows out of the heat exchanger 100 through the first outflow outlet 611 and the heat exchange medium outlet 4. Thus, the heat exchange medium in the heat exchange cavities 7 can flow to the heat exchange medium outlet 4 through the second outflow channel 62 and the first outflow channel 61, so that the outflow states of the heat exchange medium in the heat exchange cavities 7 are relatively consistent. In addition, the flow path of the heat exchange medium is reasonable in design, so that the heat exchange medium can orderly flow between the plurality of heat exchange cavity outlets 72 and the heat exchange medium outlet 4, and the smoothness of the flow of the heat exchange medium is improved. In addition, the second outflow passage 62 has a simple structure, which is advantageous for the production process of the heat exchanger 100.
According to some embodiments of the present utility model, referring to fig. 5 and 6, the second inflow channel 52 includes a plurality of inflow channel sections 523, one ends of the plurality of inflow channel sections 523 being connected to each other and constituting the second inflow inlet 521, and the other ends of the plurality of inflow channel sections 523 being respectively a plurality of second inflow outlets 522. And/or the second outflow channel 62 includes a plurality of outflow channel sections 623, one ends of the plurality of outflow channel sections 623 being connected to each other and constituting a second outflow outlet 621, and the other ends of the plurality of outflow channel sections 623 being a plurality of second outflow inlets 622, respectively.
For example, in the example of fig. 5 and 6, each of the second inflow passages 52 includes two inflow passage sections 523, the front ends of the two inflow passage sections 523 are connected to constitute a second inflow inlet 521 and communicate with the corresponding first inflow outlet 512, and the rear ends of the two inflow passage sections 523 communicate with the heat exchange chamber inlets 71 of the adjacent two heat exchange chambers 7, respectively. The heat exchange medium flowing from the second inflow inlet 521 into the second inflow channel 52 may flow in the extending direction of the plurality of inflow channel sections 523, respectively, to flow into the corresponding heat exchange chamber 7 via the plurality of second inflow outlets 522 and the plurality of heat exchange chamber outlets 72. With this arrangement, the connection between the second inflow channel 52 and the first inflow channel 51 and the heat exchange chamber 7 is simple, and the heat exchange mediums in the plurality of inflow channel sections 523 do not interfere with each other and flow in order, thereby further ensuring the ordered flow of the heat exchange mediums between the heat exchange medium inlet 3 and the heat exchange chamber inlet 71. In addition, the inflow channel section 523 has a simple structure, and the inflow path of the heat exchange medium is reasonably designed.
For example, in the example of fig. 5 and 6, each of the second outflow passages 62 includes two outflow passage sections 623, front ends of the two second outflow passage sections 623 communicate with the heat exchange chamber outlets 72 of the adjacent two heat exchange chambers 7, respectively, and rear ends of the two second outflow passage sections 623 are connected to constitute a second outflow outlet 621 and communicate with the corresponding first outflow inlet 612. During use of the heat exchanger 100, heat exchange medium flowing into the second outflow channel 62 from the plurality of second outflow inlets 622 may flow in the extending direction of the plurality of outflow channel sections 623, respectively, to the heat exchange medium outlet 4 via the second outflow outlet 621 and the first outflow channel 61. With this arrangement, the connection between the second outflow channel 62 and the first outflow channel 61 and the heat exchange chamber 7 is simple, and the heat exchange medium in the plurality of outflow channel sections 623 does not interfere with each other and flows in order, thereby further guaranteeing the ordered flow of heat exchange value between the heat exchange chamber 7 and the heat exchange medium outlet 4. In addition, the outflow channel section 623 has a simple structure and a reasonable design of the outflow path of the heat exchange medium.
According to some embodiments of the present utility model, with reference to fig. 5 and 6, the inflow channel sections 523 are two, extending obliquely in a direction from the heat exchange medium inlet 3 towards the heat exchange medium outlet 4, the two inflow channel sections 523 being directed away from each other. And/or the outflow channel sections 623 are two, extending obliquely in a direction from the heat exchange medium inlet 3 towards the heat exchange medium outlet 4, the two outflow channel sections 623 being directed towards each other.
For example, in the examples of fig. 5 and 6, the two inflow channel sections 523 extend obliquely from front to back toward a direction away from each other, and the rear ends of the two inflow channel sections 523 communicate with the adjacent two heat exchange chambers 7, respectively. Therefore, the path between the first inflow outlet 512 and the heat exchange cavity inlet 71 is shorter, so that the flow path of the heat exchange medium in the second inflow channel 52 is shortened, the flow path of the heat exchange medium in the inflow channel 5 is shortened, the heat exchange medium in the inflow channel 5 can quickly flow into the plurality of heat exchange cavities 7, and the heat exchange effect of the heat exchanger 100 is improved. In addition, the structure of the second inflow channel 52 is simplified, thereby further simplifying the structure of the inflow channel 5, improving the production efficiency of the heat exchanger 100, and reducing the production cost.
For example, in the examples of fig. 5 and 6, the two outflow channel sections 623 extend obliquely from front to back toward a direction approaching each other, and the front ends of the two outflow channel sections 623 communicate with the adjacent two heat exchange chambers 7, respectively. Thus, the path between the first outflow inlet 612 and the heat exchange chamber outlet 72 is shorter, thereby shortening the flow path of the heat exchange medium in the second outflow channel 62, so that the flow path of the heat exchange medium in the outflow channel 6 is shortened, and the heat exchange medium in the outflow channel 6 can flow to the heat exchange medium outlet 4 quickly. In addition, the structure of the second outflow passage 62 is simplified, thereby further simplifying the structure of the outflow passage 6, improving the production efficiency of the heat exchanger 100, and reducing the production cost.
According to some embodiments of the present utility model, in conjunction with fig. 5 and 6, the two inflow channel sections 523 include a first inflow channel section 5231 and a second inflow channel section 5232, the first inflow channel section 5231 being located on a side of the second inflow channel section 5232 adjacent to the central plane, the cross-sectional area of the first inflow channel section 5231 being half of the cross-sectional area of the second inflow channel section 5232. And/or the two outflow channel sections 623 comprise a first outflow channel section 6231 and a second outflow channel section 6232, the first outflow channel section 6231 being located on a side of the second outflow channel section 6232 adjacent to the centre plane, the cross-sectional area of the first outflow channel section 6231 being half the cross-sectional area of the second outflow channel section 6232.
For example, in the examples of fig. 5 and 6, for the second inflow channel 52 located on the left side of the heat exchanger 100, the two inflow channel sections 523 are the second inflow channel section 5232 and the first inflow channel section 5231, respectively, from left to right. For the second inflow channel 52 located on the right side of the heat exchanger 100, two inflow channel sections 523 are a first inflow channel section 5231 and a second inflow channel section 5232, respectively, from left to right. The adjacent two first inflow channel sections 5231 are each in communication with the same heat exchange chamber 7, and the cross-sectional areas of the adjacent two first inflow channel sections 5231 are the same and half the cross-sectional area of the second inflow channel section 5232 (e.g., H 3＝1/2H4 in fig. 6). Thus, the amount of the heat exchange medium flowing into the three heat exchange cavities 7 through the plurality of second inflow channels 52 is approximately the same, and the amount of the heat exchange medium flowing into the single heat exchange cavity 7 in unit time is approximately 1/3 of the amount of the heat exchange medium flowing into the heat exchange medium inlet 3 in unit time, so that the heat exchange conditions in the plurality of heat exchange cavities 7 are effectively ensured to be basically consistent, and the heat exchange performance of the heat exchanger 100 is improved.
For example, in the example of fig. 6, for the second outflow channel 62 located on the left side of the heat exchanger 100, two outflow channel sections 623 from left to right are a second outflow channel section 6232 and a first outflow channel section 6231, respectively. For the second outflow channel 62 located on the right side of the heat exchanger 100, two outflow channel sections 623, from left to right, are a first outflow channel section 6231 and a second outflow channel section 6232, respectively. The adjacent two first outflow channel sections 6231 are each in communication with the same heat exchange chamber 7, the cross-sectional areas of the adjacent two first outflow channel sections 6231 being the same and half the cross-sectional area of the second outflow channel section 6232. Thereby, the quantity of the heat exchange medium flowing out of the three heat exchange cavities 7 into the outflow channel 6 is approximately the same, and the quantity of the heat exchange medium flowing out of each heat exchange cavity 7 in unit time is approximately 1/3 of the quantity of the heat exchange medium flowing out of the heat exchange medium outlet 4 in unit time, so that the outflow conditions of the heat exchange media in the plurality of heat exchange cavities 7 are basically consistent, the basically consistent heat exchange conditions in the plurality of heat exchange cavities 7 are more effectively ensured, and the heat exchange performance of the heat exchanger 100 is further improved.
According to some embodiments of the present utility model, referring to fig. 5 and 6, the above-mentioned other ends of two inflow channel sections 523 adjacent to and connected to different first inflow outlets 512 are connected to each other. And/or the above-mentioned other ends of two outflow channel sections 623 adjacent to and connected to different first outflow inlets 612 are connected to each other. For example, in the example of fig. 5 and 6, the rear ends of the two inflow channel sections 523 adjacent and respectively connected to the two first inflow outlets 512 are connected to each other, that is, the rear ends of the adjacent two first inflow channel sections 523 are connected to each other, and the front ends of the two outflow channel sections 623 adjacent and respectively connected to the two first outflow inlets 612 are connected to each other, that is, the front ends of the adjacent two first outflow channel sections 6231 are connected to each other. By the arrangement, the space occupied by the inflow channel section 523 in the heat exchanger 100 is reduced, and the space occupied by the outflow channel section 623 in the heat exchanger 100 is also reduced, so that the utilization rate of the internal space of the heat exchanger 100 is improved, and the internal structure of the heat exchanger 100 is more compact. For example, as shown in fig. 5 and 6, the second inflow channel 52 is formed with three second inflow outlets 522 in a conformal manner, the three second inflow outlets 522 are respectively communicated with the three heat exchange chambers 7 in a one-to-one correspondence, the second outflow channel 62 is formed with three second outflow inlets 622 in a conformal manner, the three second outflow inlets 622 are respectively communicated with the three heat exchange chambers 7 in a one-to-one correspondence, and each of the second inflow outlets 522 and the second inflow inlets 521 is respectively located at a center position of the corresponding heat exchange chamber 7 in the left-right direction to facilitate the smooth inflow and outflow of the heat exchange medium into and out of the heat exchange chamber 7.
Alternatively, as shown in fig. 6, the lengths of the heat exchange chamber inlets 71 of the plurality of heat exchange chambers 7 in the first direction are l 3, and the lengths of the heat exchange chamber outlets 72 of the plurality of heat exchange chambers 7 in the first direction are l 4, where l 3、l4 respectively satisfies: l 3≤12mm,8mm≤l4 mm or more and 12mm or less. Therefore, the heat exchange cavity inlets 71 and the heat exchange outlets of the plurality of heat exchange cavities 7 are moderate in size, so that the heat exchange medium can smoothly flow into the heat exchange cavities 7, and the heat exchange medium in the heat exchange cavities 7 can smoothly flow out of the heat exchange cavities 7, so that the flow of the heat exchange medium in the heat exchanger 100 is facilitated, and the smooth heat exchange between the heat exchange medium and other components is facilitated. It should be noted that, the lengths l 3 of the heat exchange cavity inlets 71 of the plurality of heat exchange cavities 7 along the first direction, l 4 of the heat exchange cavity outlets 72 of the plurality of heat exchange cavities 7 along the first direction may be correspondingly set according to the overall specification of the heat exchanger 100, so as to better satisfy practical applications.
According to some embodiments of the present utility model, referring to fig. 7 and 8, the inflow channel 5 further includes a third inflow channel 53, and a third inflow inlet 531 and a plurality of third inflow outlets 532 are formed on the third inflow channel 53, and the third inflow inlet 531 communicates with the second inflow outlet 522 corresponding to the second inflow channel 52, and the plurality of third inflow outlets 532 communicate with the at least one heat exchange chamber 7, respectively. And/or, the outflow channel 6 further includes a third outflow channel 63, a third outflow outlet 631 and a plurality of third outflow inlets 632 are formed on the third outflow channel 63, the third outflow outlet 631 communicates with the second outflow inlet 622 corresponding to the second outflow channel 62, and the plurality of third outflow inlets 632 communicate with the at least one heat exchange chamber 7, respectively.
For example, in the example of fig. 7 and 8, the inflow channel 5 includes, in order from front to back, a first inflow channel 51, two second inflow channels 52, and four third inflow channels 53, a front end of each third inflow channel 53 communicates with a corresponding second inflow outlet 522, a rear end of each third inflow channel 53 communicates with a corresponding heat exchange chamber 7, or a plurality of third inflow outlets 532 communicate with adjacent two heat exchange chambers 7, respectively. When the heat exchanger 100 is in operation, the inflow path of the heat exchange medium is approximately as follows: the heat exchange medium flowing in from the heat exchange medium inlet 3 flows through the first inflow inlet 511, the corresponding first inflow outlet 512, the second inflow inlet 521, the corresponding second inflow outlet 522, the third inflow inlet 531, and the corresponding plurality of third inflow outlets 532 in this order, and then flows into the corresponding heat exchange chamber 7. As shown in fig. 7, the four inflow passages 5 are formed with eight third inflow outlets 532 in total, and the number of third inflow outlets 532 respectively communicating with the heat exchange chamber inlets 71 of the three heat exchange chambers 7 is three, two, and three. Thereby, the heat exchange medium flowing in from the heat exchange medium inlet 3 is divided into a plurality of flow paths to flow into the corresponding heat exchange cavities 7, and the flow paths of the heat exchange medium are increased, so that the flow interference of the heat exchange medium between the flow paths is further reduced, and the flow of the heat exchange medium between the heat exchange medium inlet 3 and the plurality of heat exchange cavities 7 is further facilitated.
For example, in the example of fig. 7 and 8, the outflow channel 6 includes, in order from front to back, a third outflow channel 63, a second outflow channel 62, and a first outflow channel 61, the front end of each third outflow channel 63 communicates with the corresponding heat exchange chamber 7, or a plurality of third outflow inlets 632 communicate with the adjacent two heat exchange chambers 7, respectively, and the rear end of each third outflow channel 63 communicates with the corresponding second outflow inlet 622. When the heat exchanger 100 is in operation, the outflow path of the heat exchange medium is approximately as follows: the heat exchange medium after heat exchange in the heat exchange chamber 7 flows to the heat exchange medium outlet 4 through the plurality of third outflow inlets 632, the third outflow outlets 631, the corresponding second outflow inlets 622, the second outflow outlets 621, the corresponding first outflow inlets 612 and the first outflow outlets 611, respectively. As shown in fig. 7, the four outflow passages 6 are formed with eight third outflow inlets 632 in total, and the number of third outflow inlets 632 respectively communicating with the heat exchange chamber outlets 72 of the three heat exchange chambers 7 is three, two, and three, respectively. Therefore, the heat exchange medium in the heat exchange cavity 7 can flow out through the plurality of third outflow channels 63 respectively, that is, the heat exchange medium in the plurality of heat exchange cavities 7 can flow out through the plurality of flow paths, so that the flow paths of the heat exchange medium flowing out from the heat exchange cavities 7 are increased, and the flow interference between the heat exchange medium flowing out from the plurality of heat exchange cavities 7 is further reduced, thereby being more beneficial to the flow of the heat exchange medium between the plurality of heat exchange cavities 7 and the heat exchange medium outlet 4. In addition, the above-mentioned structure of flow equalizing and splitting of the third outflow inlet 632 and the third inflow outlet 532 ensures the temperature equalizing effect, and the heat exchange medium enters the heat exchange cavity 7 from the multiple channels, so as to increase the uniformity of inflow of the heat exchange medium, reduce the dead zone of the liquid, increase the turbulent flow capability of the heat exchange medium, and enhance the independent heat dissipation of each phase line.
It should be noted that, in conjunction with fig. 8, the inflow channel 5 may further be provided with a fourth inflow channel 54 and a fourth outflow channel 64, the fourth inflow channel 54 may be disposed between the plurality of heat exchange chambers 7 and the third inflow channel 53, and the fourth outflow channel 64 may be disposed between the plurality of heat exchange chambers 7 and the fourth outflow channel 64, wherein the cross-sectional area of the second inflow inlet 521 is half of the cross-sectional area of the corresponding first inflow inlet 511, the cross-sectional area of the third inflow inlet 531 is half of the cross-sectional area of the second inflow inlet 521, and likewise, the cross-sectional area of the second outflow outlet 621 is half of the cross-sectional area of the corresponding first outflow outlet 611, so as to ensure that the flow of the upper heat exchange medium can be evenly dispersed unimpeded, and the heat exchange medium at the heat exchange medium inlet 3 can be evenly distributed into the plurality of heat exchange chambers 7, so as to improve the heat exchange and temperature equalizing effect of the plurality of heat exchange chambers 7.
For example, in the example of fig. 8, a fourth inflow inlet 541 and a plurality of fourth inflow outlets 542 are formed in the fourth inflow passage 54, the fourth inflow inlet 541 communicates 611 with the third inflow outlet 532 corresponding to the third inflow passage 53, and the plurality of fourth inflow outlets 542 communicate with the at least one heat exchange chamber 7, respectively. The fourth outflow channel 64 has at least one fourth outflow outlet 641 and a plurality of fourth outflow inlets 642 formed therein, the fourth outflow outlet 641 being in communication with the third outflow inlet 632 corresponding to the third outflow channel 63, and the plurality of fourth outflow inlets 642 being in communication with the at least one heat exchange chamber 7, respectively. As shown in fig. 8, fifteen fourth inflow outlets 542 are formed in the fourth inflow channel 54, each heat exchange chamber inlet 71 communicates with the five fourth inflow outlets 542, respectively, the cross-sectional area of each fourth inflow outlet 542 is 1/15 of the cross-sectional area of the first inflow inlet 511, fifteen fourth outflow inlets 642 are formed in the fourth outflow channel 64, each heat exchange chamber outlet 72 communicates with the five fourth outflow inlets 642, respectively, and the cross-sectional area of each fourth outflow inlet 642 is 1/15 of the cross-sectional area of the first outflow outlet 611. Therefore, the above-mentioned structure of flow equalizing and flow dividing of the fourth inflow outlet 542 and the fourth outflow inlet 642 ensures the temperature equalizing effect of the heat exchange cavities 7, and at the same time, the heat exchange medium enters the heat exchange cavities 7 from the flow paths, thereby increasing the inflow uniformity of the heat exchange medium, reducing the dead zone of the liquid, increasing the turbulent flow capability of the heat exchange medium, and enhancing the independent heat dissipation of each phase line corresponding to the heat exchange cavities 7.
Alternatively, the areas of the plurality of heat exchange chambers 7 are all equal. For example, three heat exchange chambers 7 are shown in the example of fig. 6, the cross-sectional shape of the three heat exchange chambers 7 being substantially rectangular, the areas of the three heat exchange chambers 7 being equal. Therefore, the volumes of the heat exchange cavities 7 are the same, so that the amounts of heat exchange media stored in the heat exchange cavities 7 are the same, and the heat exchange capacity of the heat exchange cavities 7 is further ensured to be consistent, so that the heat exchanger 100 is more beneficial to use. It should be noted that the areas of the plurality of heat exchange chambers 7 may be specifically set according to the use, so as to better satisfy the practical application.
According to some embodiments of the utility model, referring to fig. 6, the heat exchange chamber 7 has a length l 1 and the heat exchange chamber 7 has a width w 1, wherein l 1、w1 satisfies: l 1≤70mm,40mm≤w1 is less than or equal to 60mm and less than or equal to 50mm. For example, in the example of fig. 6, the lengths of the three heat exchange chambers 7 are all the same, and the widths of the three heat exchange chambers 7 are also the same. So set up, the size of every heat transfer chamber 7 is comparatively moderate, makes the area of heat transfer chamber 7 great simultaneously to effectively increased the space that heat transfer chamber 7 occupy in heat exchanger 100, thereby increased the volume of heat transfer medium in heat exchanger 100, in order to be favorable to heat exchange of heat exchanger 100 with other parts more.
According to some embodiments of the present utility model, referring to fig. 1 and 2, a heat exchanger 100 includes a body 1 and a heat exchange plate 2, one side of the body 1 is opened, the heat exchange plate 2 is disposed at the one side of the body 1, and a heat exchange medium inlet 3, a heat exchange medium outlet 4, an inflow passage 5, an outflow passage 6, and a plurality of heat exchange chambers 7 are defined between the heat exchange plate 2 and the body 1. For example, in the example of fig. 1 and 2, the upper side of the body 1 is open, and the heat exchange plate 2 is provided above the body 1. When the heat exchanger 100 is used in a power module, the heat exchange plate 2 is connected with the power module, and a plurality of phase lines of the power module can exchange heat with a heat exchange medium in the heat exchange cavity 7 through the heat exchange plate 2. Or the heat exchange plate 2 can also be directly welded with a copper-clad ceramic substrate (namely DBC) of the power module to be directly used as a heat dissipation bottom plate of the power module, so as to be beneficial to heat dissipation of the power module. Thus, the heat exchanger 100 has a simple structure and is convenient to manufacture and process. Meanwhile, the heat exchanger 100 is convenient to use, and is beneficial to heat exchange between the heat exchanger 100 and other components.
Further, referring to fig. 1-4, and referring to fig. 9, the heat exchange plate 2 is provided with a plurality of heat dissipation members 21, and the plurality of heat dissipation members 21 respectively extend into the plurality of heat exchange cavities 7. For example, in the example of fig. 1 and 2, the side of the heat exchanger plate 2 facing the body 1 is provided with a plurality of heat dissipating members 21, and the plurality of heat dissipating members 21 may extend into the heat exchange chamber 7 to be in contact with the heat exchange medium. Therefore, other components such as the power module can be in contact with the heat exchange medium through the plurality of heat dissipation elements 21 to conduct heat exchange, so that the contact area between the heat dissipation elements 21 and the heat exchange medium is increased, the heat exchange efficiency of the heat exchange between the power module and the heat exchange medium is improved, the heat exchange performance of the heat exchanger 100 is further improved, and the use of the heat exchanger 100 is facilitated. It should be noted that the shape and size of the heat dissipation element 21 may be set according to practical embodiments to better satisfy practical applications.
According to some embodiments of the utility model, the distance between the end of each heat spreading member 21 remote from the heat exchanger plate 2 and the bottom wall of the heat exchange chamber 7 is d, wherein d satisfies: d is more than or equal to 0.3mm and less than or equal to 1mm. For example, in the examples of fig. 1 and 2, the upper end of each heat dissipating member 21 is connected to the bottom of the heat exchanging plate 2, the lower end of each heat dissipating member 21 extends toward the body 1, and the distance between the lower end of each heat dissipating member 21 and the bottom wall of the heat exchanging cavity 7 satisfies 0.3 mm.ltoreq.d.ltoreq.1 mm. When the distance between the lower end of each heat dissipation element 21 and the bottom wall of the heat exchange cavity 7 is smaller than 0.3mm, the distance between the lower end of the heat dissipation element 21 and the bottom wall of the heat exchange cavity 7 is smaller, and the heat dissipation element 21 can obstruct the flow of the heat exchange medium in the heat exchange cavity 7, so that the smoothness of the flow of the heat exchange medium in the heat exchange cavity 7 is reduced. When the distance between the lower end of each heat dissipation element 21 and the bottom wall of the heat exchange cavity 7 is greater than 1mm, the distance between the lower end of each heat dissipation element 21 and the bottom wall of the heat exchange cavity 7 is too large, so that the contact area between the heat dissipation element 21 and the heat exchange medium is reduced, and the heat transfer effect of the heat dissipation element 21 is reduced. Thereby, by providing that the distance d between the end of each heat radiating member 21 remote from the heat exchanging plate 2 and the bottom wall of the heat exchanging cavity 7 is satisfied: d is more than or equal to 0.3mm and less than or equal to 1mm, the distance between the lower end of the heat dissipation piece 21 and the bottom wall of the heat exchange cavity 7 is moderate, the heat transfer effect of the heat dissipation piece 21 is improved while the heat exchange medium flows in the heat exchange cavity 7, and therefore the heat exchange effect of the heat exchanger 100 is guaranteed.
Alternatively, referring to fig. 3 and 4, the width of each heat sink 21 in the first direction is w 2, and the length of each heat sink 21 in the second direction is l 2, where l 2、w2 satisfies: l 2≤4mm,0.5mm≤w2 is less than or equal to 1mm and less than or equal to 2mm. For example, in the examples of fig. 3 and 4, the plurality of heat dissipation elements 21 are uniform in size, i 2＝3mm,w2 =1.5 mm. So arranged, the length and width of the heat sink 21 are moderate, and the long and short sides of the heat sink 21 need to be maintained at a specific ratio to facilitate the flow of heat exchange medium between the plurality of heat sinks 21.
According to some alternative embodiments of the present utility model, in conjunction with fig. 3 and 4, each heat sink 21 has an oval cross-sectional shape. Therefore, the heat dissipation part 21 adopting the pin-fin elliptic cylinder structure can increase the heat convection area of the heat dissipation part 21 and the heat exchange medium, so that the heat exchange between the heat dissipation part 21 and the heat exchange medium is facilitated, and the heat exchange efficiency is improved. The long side of the ellipse is consistent with the flow direction (i.e. front-back direction) of the heat exchange medium, and the short side of the ellipse is perpendicular to the flow direction of the heat exchange medium. In addition, the heat dissipation member 21 with the streamline elliptical structure can reduce the flow resistance of the heat exchange medium (i.e. the resistance of the heat exchange medium in the flowing process), meanwhile, the elliptical design is close to the streamline of the heat exchange medium after flowing through the heat dissipation member 21, so that the heat convection area of the pin-fin area can be more effectively utilized, and the heat exchange of the heat exchanger 100 is more facilitated.
According to some embodiments of the present utility model, referring to fig. 3 and 4, the plurality of heat dissipation elements 21 includes a plurality of first heat dissipation element groups 22 and a plurality of second heat dissipation element groups 23, the plurality of first heat dissipation element groups 22 and the plurality of second heat dissipation element groups 23 are staggered along the second direction, the plurality of first heat dissipation element groups 22 include a plurality of first heat dissipation elements 221 spaced along the first direction, the plurality of second heat dissipation element groups 23 include a plurality of second heat dissipation elements 231 spaced along the first direction, the plurality of first heat dissipation elements 221 of two adjacent first heat dissipation element groups 22 and the plurality of second heat dissipation elements 231 of two adjacent second heat dissipation element groups 23 are staggered along the first direction, and an included angle between a line connecting a center of the first heat dissipation element 221 and a center of the two adjacent second heat dissipation elements 231 in the two adjacent groups is α, wherein α satisfies: alpha is more than or equal to 30 degrees and less than or equal to 60 degrees.
For example, in the example of fig. 3 and 4, the plurality of first heat dissipating member groups 22 and the plurality of second heat dissipating member groups 23 are staggered in the front-rear direction, the plurality of first heat dissipating members 221 of each first heat dissipating member group 22 are arranged at intervals in the left-right direction, the plurality of second heat dissipating members 231 of each second heat dissipating member group 23 are arranged at intervals in the left-right direction, and the first heat dissipating members 221 of the first heat dissipating member group 22 and the second heat dissipating members 231 of the adjacent second heat dissipating member groups 23 are staggered in the front-rear direction. When the included angle α between the lines of the centers of the first heat dissipation member 221 and the centers of the adjacent two second heat dissipation members 231 in the adjacent two groups is less than 30 °, the distance between the adjacent two second heat dissipation members 231 is closer, thereby increasing the flow resistance of the heat exchange medium flowing between the first heat dissipation member 221 and the second heat dissipation member 231. When the included angle α between the connection lines of the centers of the first heat dissipation elements 221 and the centers of the adjacent two second heat dissipation elements 231 in the adjacent two groups is greater than 60 °, the distance between the adjacent two second heat dissipation elements 231 is greater, so that the number of the second heat dissipation elements 231 in the second heat dissipation element group 23 of the same group is reduced, thereby reducing the heat dissipation effect of the heat dissipation elements 21. Therefore, by setting the included angle alpha between the connecting lines of the centers of the first heat dissipation elements 221 and the centers of the adjacent two second heat dissipation elements 231 in two adjacent groups to satisfy the angle alpha of 30 degrees or more and the angle alpha of 60 degrees or less, the distances between the plurality of first heat dissipation elements 221 and the plurality of second heat dissipation elements 231 are moderate, and the layout is reasonable, so that the number of the heat dissipation elements 21 is moderate, the heat dissipation effect of the heat dissipation elements 21 can be improved while the flow resistance of a heat exchange medium is reduced, and the service performance of the heat exchanger 100 is further improved. For example, α=40°, the distance between the centers of the adjacent two first heat dissipation elements 221 is 2.5mm (e.g., d 1 in fig. 4), and the distance between the centers of the adjacent two second heat dissipation elements 231 is 2.5mm.
In addition, through simulation, the temperature field distribution and the heat dissipation effect of the working state of the radiator structure are calculated and displayed. Meanwhile, compared with the simulation calculation result of the traditional elliptic cylindrical radiating bottom plate, the working junction temperature of the power module is further reduced, compared with the traditional radiating bottom plate, the temperature difference between a plurality of phase lines is obviously reduced, the temperatures of chips at three-phase corresponding positions are basically the same, and the characteristics further verify that the radiator structure has stronger radiating efficiency and can obviously improve the working range of the power module.
Optionally, the inner diameter of the heat exchange medium inlet 3 and the heat exchange medium outlet 4 is 3mm-6mm (inclusive), the outer diameter is 5mm-8mm (inclusive), the thickness of the heat exchange plate 2 is 1mm-3mm (inclusive, e.g., H 10 in fig. 2), the thickness of the body 1 is 8mm-12mm (inclusive, e.g., H 8 in fig. 2), the depth of the heat exchange chamber 7 (e.g., H 11 in fig. 2) is equal to the sum of the length of the heat dissipation members 21 and d (the distance between the end of each heat dissipation member 21 remote from the heat exchange plate 2 and the bottom wall of the heat exchange chamber 7), and the length of the heat dissipation members 21 is 4mm-8mm (inclusive, e.g., H 9 in fig. 2). Therefore, the heat exchanger 100 and the size design of each part thereof are reasonable, which is beneficial to the production and processing of the heat exchanger 100 while being beneficial to the use of the heat exchanger 100. In addition, the two first inflow outlets 512 are respectively located at the trisection positions of the plurality of heat exchange chambers 7 in the first direction, and the two first outflow inlets 612 are respectively located at the trisection positions of the plurality of heat exchange chambers 7 in the first direction (for example, the position of the point C in fig. 6) to facilitate the split flow of the first inflow channels 51 and the first outflow channels 61.
A power module assembly (not shown) according to an embodiment of the second aspect of the present utility model includes a power module (not shown) and a heat exchanger 100.
Specifically, the power module includes a plurality of phase lines (not shown) arranged at intervals along the first direction, and the heat exchanger 100 is the heat exchanger 100 according to the above-described embodiment of the first aspect of the present utility model, where the plurality of phase lines are disposed on the heat exchanger 100, and the plurality of phase lines are respectively opposite to the plurality of heat exchange cavities 7 of the heat exchanger 100. Therefore, the phase lines can be respectively subjected to heat exchange with the heat exchange cavities 7 at the corresponding positions, so that the phase lines can be used for radiating heat independently, the heat exchange capacity among the phase lines is consistent, the influence of the phase lines is reduced, the heat radiation condition states are kept consistent, the temperature difference among the phase lines is reduced, the temperature equalizing effect is greatly controlled, and the service performance of the power module and the power module assembly is improved. Through multiple simulation verification, the three-phase line radiates heat independently, so that the three-phase heat exchange medium quantity is basically consistent, and the temperature equalizing effect is obviously enhanced.
A vehicle (not shown) according to an embodiment of the third aspect of the present utility model includes a power module assembly according to an embodiment of the above-described second aspect of the present utility model.
According to the vehicle provided by the embodiment of the utility model, the use performance of the vehicle is improved by adopting the power module assembly.
Other constructions and operations of power module assemblies and vehicles according to embodiments of the present utility model are known to those of ordinary skill in the art and will not be described in detail herein.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (21)

1. A heat exchanger, characterized in that, at least one heat exchange medium inlet, at least one heat exchange medium outlet, at least one inflow channel, at least one outflow channel and a plurality of heat exchange cavities are formed on the heat exchanger, each heat exchange cavity is provided with at least one heat exchange cavity inlet and at least one heat exchange cavity outlet, the inflow channel is connected between the heat exchange medium inlet and the heat exchange cavity inlet, the outflow channel is connected between the heat exchange cavity outlet and the heat exchange medium outlet, a plurality of heat exchange cavities are arranged at intervals along a first direction, the heat exchange medium inlet and the inflow channel are positioned on one side of a plurality of heat exchange cavities along a second direction, the heat exchange medium outlet and the outflow channel are positioned on the other side of a plurality of heat exchange cavities along the second direction, the second direction is perpendicular to the first direction, and the heat exchange medium inlet, the heat exchange medium outlet, the inflow channel, the outflow channel and the plurality of heat exchange cavities are symmetrical about a central plane extending along the second direction.
2. The heat exchanger of claim 1, wherein the at least one inflow channel comprises a first inflow channel having a first inflow inlet and a plurality of first inflow outlets formed thereon, the first inflow inlet being in communication with the heat exchange medium inlet, the plurality of first inflow outlets being in communication with the heat exchange chamber inlets of the plurality of heat exchange chambers, respectively; and/or
The at least one outflow channel comprises a first outflow channel, the first outflow channel extends along the first direction, a first outflow outlet and a plurality of first outflow inlets are formed on the first outflow channel, the first outflow outlet is communicated with the heat exchange medium outlet, and the plurality of first outflow inlets are respectively communicated with the heat exchange cavity outlets of the plurality of heat exchange cavities.
3. The heat exchanger of claim 2, wherein the first inflow channel comprises a first main inflow channel section and a plurality of first split inflow channel sections, the first main inflow channel section extending in the first direction, the plurality of first split inflow channel sections extending in the second direction, one ends of the plurality of first split inflow channel sections being connected to the first main inflow channel section, the other ends of the plurality of first split inflow channel sections being respectively in communication with the heat exchange chamber inlets of the plurality of heat exchange chambers; and/or
The first outflow channel comprises a first main outflow channel section and a plurality of first shunt outflow channel sections, the first main outflow channel sections extend along the first direction, the first shunt outflow channel sections extend along the second direction, one ends of the first shunt outflow channel sections are connected with the first main outflow channel sections, and the other ends of the first shunt outflow channel sections are respectively communicated with the heat exchange cavity outlets of the heat exchange cavities.
4. The heat exchanger of claim 2, wherein the cross-sectional area of the first inflow inlet is equal to the cross-sectional area of the heat exchange medium inlet; and/or
The cross-sectional area of the first outflow outlet is equal to the cross-sectional area of the heat exchange medium outlet.
5. The heat exchanger of claim 2, wherein the number of first inflow outlets is N 1, each of the first inflow outlets having a cross-sectional area of 1/N 1 of the cross-sectional area of the first inflow inlet; and/or
The number of the first outflow inlets is N 2, and the cross-sectional area of each first outflow inlet is 1/N 2 of the cross-sectional area of the first outflow outlet.
6. The heat exchanger of claim 2, wherein the inflow channel further comprises a second inflow channel having a second inflow inlet formed thereon and a plurality of second inflow outlets, the second inflow inlet communicating with the first inflow outlet corresponding to the first inflow channel, the plurality of second inflow outlets communicating with the heat exchange chamber inlets of at least two adjacent heat exchange chambers, respectively; and/or
The outflow channel further comprises a second outflow channel, a second outflow outlet and a plurality of second outflow inlets are formed on the second outflow channel, the second outflow outlet is communicated with the first outflow inlet corresponding to the first outflow channel, and the plurality of second outflow inlets are respectively communicated with the outlets of the heat exchange cavities of at least two adjacent heat exchange cavities.
7. The heat exchanger of claim 6, wherein the second inflow channel comprises a plurality of inflow channel sections, one ends of which are connected to each other and constitute the second inflow inlet, and the other ends of which are respectively a plurality of the second inflow outlets; and/or
The second outflow channel comprises a plurality of outflow channel sections, one ends of the outflow channel sections are connected with each other and form the second outflow outlet, and the other ends of the outflow channel sections are respectively provided with a plurality of second outflow inlets.
8. The heat exchanger according to claim 7, wherein the inflow channel sections are two, the two inflow channel sections extending obliquely in a direction from the heat exchange medium inlet toward the heat exchange medium outlet, the two inflow channel sections being directed away from each other; and/or
The number of the outflow channel sections is two, and the two outflow channel sections extend obliquely in the direction from the heat exchange medium inlet to the heat exchange medium outlet and towards each other.
9. The heat exchanger of claim 8, wherein two of the inflow channel sections comprise a first inflow channel section and a second inflow channel section, the first inflow channel section being located on a side of the second inflow channel section adjacent the center plane, the cross-sectional area of the first inflow channel section being half the cross-sectional area of the second inflow channel section; and/or
The two outflow channel sections comprise a first outflow channel section and a second outflow channel section, the first outflow channel section being located on a side of the second outflow channel section adjacent to the central plane, the cross-sectional area of the first outflow channel section being half the cross-sectional area of the second outflow channel section.
10. The heat exchanger according to claim 7, wherein the other ends of two of the inflow channel sections adjacent to and connected to different of the first inflow outlets are connected to each other; and/or
The other ends of two of the outflow channel sections adjacent to and connected to different ones of the first outflow inlets are connected to each other.
11. The heat exchanger of claim 6, wherein the inflow channel further comprises a third inflow channel having a third inflow inlet and a plurality of third inflow outlets formed thereon, the third inflow inlet being in communication with the second inflow outlet corresponding to the second inflow channel, the plurality of third inflow outlets being in communication with at least one of the heat exchange chambers, respectively; and/or
The outflow channel further comprises a third outflow channel, a third outflow outlet and a plurality of third outflow inlets are formed on the third outflow channel, the third outflow outlet is communicated with the second outflow inlet corresponding to the second outflow channel, and the third outflow inlets are respectively communicated with at least one heat exchange cavity.
12. The heat exchanger of claim 1, wherein the heat exchange chambers are all equal in area.
13. The heat exchanger of claim 1, wherein the heat exchange cavity has a length of l 1 and a width of w 1, wherein l 1、w1 satisfies: l 1≤70mm,40mm≤w1 is less than or equal to 60mm and less than or equal to 50mm.
14. The heat exchanger according to any one of claims 1 to 13, wherein the heat exchanger comprises:
a body having one side opened;
The heat exchange plate is arranged on one side of the body, and the heat exchange plate and the body jointly define the heat exchange medium inlet, the heat exchange medium outlet, the inflow channel, the outflow channel and a plurality of heat exchange cavities.
15. The heat exchanger of claim 14, wherein the heat exchange plate is provided with a plurality of heat dissipation members, and a plurality of the heat dissipation members extend into a plurality of the heat exchange chambers respectively.
16. The heat exchanger according to claim 15, wherein a distance between an end of each of the heat radiating members remote from the heat exchanging plate and a bottom wall of the heat exchanging cavity is d, wherein d satisfies: d is more than or equal to 0.3mm and less than or equal to 1mm.
17. The heat exchanger of claim 15, wherein each of the heat sinks has a width w 2 in the first direction and a length l 2 in the second direction, wherein the l 2、w2 satisfies: l 2≤4mm,0.5mm≤w2 is less than or equal to 1mm and less than or equal to 2mm.
18. The heat exchanger of claim 15, wherein each of the heat sinks has an oval cross-sectional shape.
19. The heat exchanger of claim 15, wherein a plurality of the heat dissipating members includes a plurality of first heat dissipating member groups and a plurality of second heat dissipating member groups, the plurality of first heat dissipating member groups and the plurality of second heat dissipating member groups are staggered in the second direction, the plurality of first heat dissipating member groups include a plurality of first heat dissipating members that are spaced apart in the first direction, the plurality of second heat dissipating member groups include a plurality of second heat dissipating members that are spaced apart in the first direction, the plurality of first heat dissipating members of two adjacent groups of first heat dissipating members and the plurality of second heat dissipating members of two adjacent groups of second heat dissipating members are staggered in the first direction, and an angle α between a connecting line between centers of the first heat dissipating members and centers of two adjacent second heat dissipating members in the two adjacent groups is α, wherein α satisfies: alpha is more than or equal to 30 degrees and less than or equal to 60 degrees.
20. A power module assembly, comprising:
a power module including a plurality of phase lines arranged at intervals along a first direction;
A heat exchanger according to any one of claims 1 to 19, wherein a plurality of the phase lines are provided on the heat exchanger, the plurality of phase lines being respectively opposed to a plurality of heat exchange chambers of the heat exchanger.
21. A vehicle comprising the power module assembly of claim 20.
CN202322633845.1U 2023-09-27 Heat exchanger, power module assembly and vehicle Active CN221354820U (en)

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Publication Number Publication Date
CN221354820U true CN221354820U (en) 2024-07-16

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