Heat exchanger, thermal management system, and energy storage apparatus

Abstract

A heat exchanger, a thermal management system, and an energy storage apparatus, relating to the technical field of batteries. The heat exchanger comprises heat exchange flow channels and a fluid collection flow channel; at least two heat exchange flow channels are provided, the at least two heat exchange flow channels are arranged in a first direction, and the direction of extension of the heat exchange flow channels is a second direction intersecting with the first direction; the fluid collection flow channel is used for distributing a fluid to the heat exchange flow channels or collecting the fluid in the heat exchange flow channels, at least one fluid collection flow channel comprises at least two fluid distribution ports spaced apart in the first direction, the at least two fluid distribution ports of the fluid collection flow channel are communicated with each other, and the fluid distribution ports of the fluid collection flow channel are communicated with at least two heat exchange flow channels located between the fluid collection flow channels at two ends.

Description

Heat exchanger, thermal management system and energy storage device

[0001] Cross-reference to related applications

[0002] The present disclosure is based on a Chinese patent application No. 202411302777.3, filed on September 18, 2024, entitled "A heat exchanger, thermal management system and energy storage device", and claims priority to the Chinese patent application, the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of battery, in particular to a heat exchanger, thermal management system and energy storage device. BACKGROUND

[0004] The energy storage device stores and releases electric energy through the battery device arranged in the energy storage device, and provides fluid for heat exchange to the battery device through the heat exchanger to regulate the temperature of the battery device. In the related art, the heat exchange uniformity of the heat exchanger is poor. SUMMARY

[0005] To solve the above technical problems, the present disclosure provides a heat exchanger, thermal management system and energy storage device to improve the heat exchange uniformity of the heat exchanger.

[0006] The present disclosure is implemented by the following technical solutions.

[0007] A first aspect of the embodiments of the present disclosure provides a heat exchanger, comprising:

[0008] The heat exchange flow channels are arranged in the first direction, and the flow channel extension direction of the heat exchange flow channels is the second direction arranged transversely to the first direction.

[0009] The flow collecting flow channel is used for distributing fluid to the heat exchange flow channels or collecting fluid in the heat exchange flow channels, and the flow collecting flow channel comprises at least two distribution ports arranged in the first direction at intervals, the at least two distribution ports of the flow collecting flow channel are in communication with each other, and the distribution ports of the flow collecting flow channel are in communication with the at least two heat exchange flow channels located between the two end flow collecting flow channels.

[0010] In the embodiments of the present disclosure, the flow collecting flow channel is provided with at least two distribution ports arranged in the first direction at intervals, and the heat exchange fluid is distributed into the heat exchange flow channels through the at least two distribution ports, which is conducive to reducing the maximum distance between the distribution ports and the heat exchange flow channels in the first direction, improving the uniformity of the flow in the heat exchange flow channels, and improving the heat exchange uniformity of the heat exchanger, thereby reducing the flow resistance of the heat exchange fluid in the heat exchanger.

[0011] In some embodiments, the middle position of the arrangement distance of the heat exchange flow channels is a preset center line in the first direction, and the distribution ports are arranged on both sides of the preset center line in the first direction.

[0012] In the embodiments of the present disclosure, the distribution ports are arranged on both sides of the preset center line at the center position, so that the heat exchange fluid can flow into the collecting flow channel from both sides of the preset center line and then enter the heat exchange flow channel, which is beneficial to further improve the uniformity of the flow in the heat exchange flow channel and then improve the heat dissipation efficiency of the heat exchanger.

[0013] In some embodiments, the distance between the distribution port on one side of the preset center line and the preset center line is a second distance, and the distance between the corresponding distribution port on the other side of the preset center line and the preset center line is a third distance, and the second distance and the third distance are equal.

[0014] In the embodiments of the present disclosure, the second distance and the third distance are equal, so that the distribution ports can be uniformly arranged on both sides of the preset center line, so that the heat exchange fluid can flow into the collecting flow channel from both sides of the preset center line and then enter the heat exchange flow channel with substantially the same flow resistance, which is beneficial to further improve the uniformity of the flow in the heat exchange flow channel and then improve the heat dissipation efficiency of the heat exchanger.

[0015] In some embodiments, the projection area of each distribution port of one end collecting flow channel and the projection area of the corresponding distribution port of the other end collecting flow channel at least partially overlap in the second direction.

[0016] In the embodiments of the present disclosure, the projection area of each distribution port of one end collecting flow channel and the projection area of the corresponding distribution port of the other end collecting flow channel at least partially overlap, so that each distribution port of one end collecting flow channel is at least partially aligned with the corresponding distribution port of the other end collecting flow channel in the second direction, which is beneficial to balance the flow resistance of the heat exchange fluid in the heat exchanger, and then improve the uniformity of the flow of the heat exchange fluid in the heat exchanger, and then improve the heat dissipation efficiency of the heat exchanger.

[0017] In some embodiments, the heat exchanger further comprises a flow guide assembly, which is connected to at least two distribution ports arranged on the collecting flow channel, so that the fluid in the flow guide assembly can be distributed to the collecting flow channel.

[0018] In the embodiments of the present disclosure, the heat exchange fluid is guided to the corresponding distribution ports through the flow guide assembly, so that the flow through each heat exchange flow channel is relatively uniform.

[0019] In some embodiments, the flow guide assembly comprises a flow guide flow channel, and the flow guide flow channel has an external connection interface for receiving the heat exchange fluid of an external device into or out of the heat exchanger.

[0020] In the embodiments of the present disclosure, the flow guide flow channel can better receive or discharge the heat exchange fluid through the external connection interface.

[0021] In some embodiments, the heat exchanger comprises two flow collection flow channels and two flow guide assemblies, and the number of external connection interfaces of each flow guide assembly is one.

[0022] In the embodiments of the present disclosure, only two external connection interfaces are needed for external installation, which is conducive to improving the convenience of heat exchanger installation.

[0023] In some embodiments, the opening direction of the external connection interface of the flow guide flow channel is arranged along the extension direction of the corresponding flow guide flow channel, and / or the opening direction of the external connection interface of the flow guide flow channel is arranged transversely to the extension direction of the corresponding flow guide flow channel.

[0024] In the embodiments of the present disclosure, the opening direction along the extension direction of the flow guide flow channel makes the cross-sectional area of the external connection interface as close as possible to the cross-sectional area of the flow guide flow channel. The opening direction transversely to the extension direction of the corresponding flow guide flow channel makes the external connection interface closer to the preset center line in the extension direction of the flow guide flow channel, which is conducive to improving the uniformity of the heat exchange fluid flowing through the flow distribution port, and in turn, improving the uniformity of the heat exchange fluid flowing through the heat exchange flow channel.

[0025] In some embodiments, the external connection interface is arranged between the flow distribution ports corresponding to the flow collection flow channels, or along the first direction, the external connection interface is arranged outside the flow distribution ports corresponding to the flow collection flow channels, or along the first direction, one of the external connection interfaces is arranged inside one of the flow distribution ports corresponding to the flow collection flow channels, and the other is arranged outside the other flow distribution port corresponding to the flow collection flow channels.

[0026] In the embodiments of the present disclosure, the external connection interface is arranged between the flow distribution ports corresponding to the flow collection flow channels, and the heat exchange fluid received from the external connection interface can flow to the flow distribution port of the flow collection flow channel more uniformly. The external connection interface is outside the flow distribution port, which reduces the obstruction of the external pipeline connected to the external connection interface to the airflow in the second direction, and is conducive to improving the heat dissipation efficiency.

[0027] In some embodiments, along the first direction, the external connection interfaces are respectively located at two ends of the flow guide assembly.

[0028] In the embodiments of the present disclosure, when the airflow for heat dissipation of the heat exchanger flows in the second direction, the external connection interfaces respectively located at two ends of the flow guide assembly can reduce the obstruction of the external pipeline to the airflow, and improve the heat dissipation efficiency.

[0029] In some embodiments, on one of the flow collection flow channels, the distance between the external connection interface and the flow distribution port arranged adjacent thereto is a fourth distance, on the other flow collection flow channel, the distance between the external connection interface and the flow distribution port arranged adjacent thereto is a fifth distance, and the fourth distance is equal to the fifth distance.

[0030] In some embodiments, the drainage assembly further comprises a connecting seat connected with the collecting flow channel and the drainage flow channel respectively, and the connecting seat is in communication with the collecting flow channel and the drainage flow channel at two ends along the arrangement direction of the collecting flow channel and the drainage flow channel.

[0031] In the embodiments of the present disclosure, the connecting seat is in communication with the collecting flow channel and the drainage flow channel at two ends along the arrangement direction of the collecting flow channel and the drainage flow channel, which not only connects the drainage flow channel with the collecting flow channel, but also connects the drainage assembly with the collecting flow channel, thereby facilitating the installation of the drainage assembly.

[0032] In some embodiments, the cross-sectional area of the drainage flow channel is equal to that of the corresponding collecting flow channel; and / or, the cross-sectional area of the shunt port is equal to that of the collecting flow channel, and / or, the cross-sectional area of the shunt port is equal to that of the drainage flow channel, and / or, the cross-sectional area of the external connection interface is equal to that of the drainage flow channel.

[0033] In the embodiments of the present disclosure, the cross-sectional areas are equal, thereby reducing the flow resistance and improving the smoothness of the flow of the heat exchange fluid.

[0034] In some embodiments, along the second direction, the collecting flow channel and the heat exchange channel are both arranged between the two drainage assemblies.

[0035] In the embodiments of the present disclosure, when the airflow for dissipating heat of the heat exchanger flows along the second direction, the collecting flow channel and the heat exchange channel are between the two drainage assemblies, so that the resistance of the heat exchange channel in the second direction can be reduced as much as possible, thereby facilitating the reduction of the airflow flow resistance near the heat exchange channel and the improvement of the heat dissipation efficiency of the heat exchange channel.

[0036] The second aspect of the embodiments of the present disclosure provides a heat management system, comprising a first temperature adjusting flow path, a circulating pump, a first fan, and any one of the heat exchangers, the first fan being used for dissipating heat of the heat exchanger, the first temperature adjusting flow path being used for providing a heat exchange fluid to a device to be heat managed to adjust the temperature, and the heat exchanger and the circulating pump being sequentially connected in series to the first temperature adjusting flow path.

[0037] In some embodiments, the heat management system further comprises a second temperature adjusting flow path, a refrigeration circuit, a compressor, a condenser, a second fan, and a heat exchange device, the second fan being used for cooling the condenser, the heat exchange device comprising a first heat exchange flow path and a second heat exchange flow path for heat exchange, the first heat exchange flow path and the second heat exchange flow path being isolated from each other, the second temperature adjusting flow path being connected in series with the circulating pump, the second temperature adjusting flow path being connected in parallel with the heat exchanger, the first heat exchange flow path being connected in series to the second temperature adjusting flow path, and the second heat exchange flow path, the compressor, and the condenser being sequentially connected in series to the refrigeration circuit.

[0038] In the embodiments of the present disclosure, the heat management system can select a reasonable heat dissipation mode according to the temperature of the outside world, which is conducive to reducing the power consumption of the heat management system, and the airflow generated by the second fan is used to dissipate heat of the refrigerant located in the condenser, which is conducive to improving the heat dissipation efficiency of the condenser.

[0039] In some embodiments, the heat exchanger is a heat exchange water tank, and the heat exchange fluid flowing through the heat exchanger is water.

[0040] In the embodiments of the present disclosure, the specific heat capacity of water is large, and a unit volume of water can carry more heat, so that a unit volume of heat exchange fluid can carry more heat generated by the battery device in a normal use state to the heat exchanger for heat dissipation, which is conducive to improving the heat dissipation effect of the battery device.

[0041] The third aspect of the embodiments of the present disclosure provides an energy storage device, comprising:

[0042] The battery device can store or release electric power.

[0043] The mounting box is provided with the battery device.

[0044] The heat management system of any one of the above, the battery device is connected with the first temperature regulation flow path to manage the temperature of the battery device.

[0045] Inventive effects

[0046] The heat exchanger of the embodiments of the present disclosure is provided with at least two branch flow ports along the first direction, and the heat exchange fluid is branched into the heat exchange flow channel at the at least two branch flow ports, which is conducive to reducing the maximum distance between the branch flow port and the heat exchange flow channel in the first direction, and improving the uniformity of the flow in the heat exchange pipe heat exchange flow channel, thereby improving the uniformity of heat exchange of the heat exchanger, and then reducing the flow resistance of the heat exchange fluid in the heat exchanger. BRIEF DESCRIPTION OF DRAWINGS

[0047] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of preferred embodiments, and are not meant to limit the present disclosure. Moreover, the same reference numbers in all the drawings refer to the same or similar components. In the drawings:

[0048] FIG. 1 is a schematic diagram of the flow distribution of the heat exchange fluid in the heat exchange flow channel of the heat exchanger in the related art;

[0049] FIG. 2 is a schematic diagram of the flow distribution of the heat exchange fluid in the heat exchange flow channel of the heat exchanger in some embodiments of the present disclosure;

[0050] FIG. 3 is a schematic diagram of the structure of the heat exchanger in some embodiments of the present disclosure;

[0051] FIG. 4 is a schematic diagram of a structure of a heat exchanger in some embodiments of the present disclosure;

[0052] FIG. 5 is a schematic diagram of a structure of a heat exchanger in some embodiments of the present disclosure;

[0053] FIG. 6 is a schematic diagram of a structure arrangement of a thermal management system in some embodiments of the present disclosure.

[0054] Reference signs 1, heat exchanger; 1a, preset center line; 11, heat exchange flow channel; 12, flow collection channel; 12a, flow distribution port; 13, flow guide assembly; 131, flow guide channel; 131a, liquid inlet; 131b, liquid outlet; 132, connecting seat; 2, battery device; 3, circulating pump; 4, first fan; 5, compressor; 6, condenser; 7, second fan; 8, water heater; 9, heat exchange device; 10, liquid storage tank; 14, throttle valve. DETAILED DESCRIPTION

[0055] The embodiments of the technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present disclosure, and therefore only serve as examples, and cannot limit the protection scope of the present disclosure.

[0056] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present disclosure belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure; the terms "include" and "have" and any variations thereof in the specification and claims of the present disclosure and the above description of drawings are intended to cover non-exclusive inclusion.

[0057] In the description of the embodiments of the present disclosure, the technical terms "first", "second", "third" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present disclosure, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0058] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present disclosure. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0059] In the description of the embodiments of the present disclosure, the term "and / or" is only to describe an association relationship of associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A existing alone, A and B existing simultaneously, and B existing alone. In addition, the character " / " in this paper generally represents an "or" relationship between the front and rear associated objects.

[0060] In the description of the embodiments of the present disclosure, unless otherwise explicitly specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0061] In the description of the embodiments of the present disclosure, unless otherwise explicitly specified and limited, the technical term "contact" should be understood in a broad sense, which can be direct contact or contact through an intermediate medium layer, which can be contact between two objects in contact without interaction force, or contact between two objects in contact with interaction force.

[0062] In the related art, the heat exchanger generally includes a plurality of heat exchange flow channels and a flow collecting channel arranged at both ends of the heat exchange flow channel along a second direction. The flow collecting channel is provided with an external interface for the inlet and outlet of the heat exchange fluid. The external interface is arranged at one end of the flow collecting channel along a first direction. The flow rate of the heat exchange fluid in the heat exchange flow channel close to the external interface is larger, while the flow rate of the heat exchange fluid in the heat exchange flow channel far away from the external interface is smaller, which causes the flow rate distribution of the heat exchange flow channel in the entire heat exchanger to be greatly different, and the flow resistance is large, which is not conducive to heat dissipation. In addition, the flow rate close to the end portion of the external interface is large, which can carry away a large amount of heat of the heat exchange fluid. The heat exchanger can be better dissipated close to the end portion of the external interface. The flow rate of the heat exchange flow channel in the middle portion far away from the external interface is small, which can carry away less heat of the heat exchange fluid. The heat exchanger is poor in heat dissipation in the middle portion far away from the external interface. The heat exchange of the heat exchanger is not uniform, and the uniformity of the heat exchange of the heat exchanger is poor.

[0063] Exemplarily, refer to FIG. 1, which is a schematic diagram of flow distribution of heat exchange fluid in heat exchange channels of a heat exchanger in the related art. In FIG. 1, the X axis represents heat exchange channels arranged in a first direction from left to right. The leftmost heat exchange channel is the heat exchange channel closest to an external interface for liquid inlet on a manifold channel on one side. The rightmost heat exchange channel is the heat exchange channel closest to an external interface for liquid outlet on a manifold channel on the other side. The Y axis represents the flow size of the heat exchange fluid in the heat exchange channels. As shown in FIG. 1, the flow distribution of the heat exchange fluid in the heat exchange channels arranged in the first direction is quite different, showing a distribution rule of higher at both ends and lower in the middle. The flow deviation of the heat exchange fluid in each heat exchange channel can be up to 38%. The farther the distance between the heat exchange channel arranged in the first direction and the external interface, the smaller the corresponding flow of the heat exchange fluid, which is not conducive to heat dissipation of the heat exchanger.

[0064] The heat exchanger in the embodiment of the present disclosure is provided with at least two flow distribution ports spaced apart in the first direction. The heat exchange fluid is distributed into the heat exchange channels through the at least two flow distribution ports, which is conducive to reducing the maximum distance between the flow distribution port and the heat exchange channel in the first direction, improving the uniformity of the flow in the heat exchange channel, and thus improving the uniformity of heat exchange of the heat exchanger, and further reducing the flow resistance of the heat exchange fluid in the heat exchanger.

[0065] Exemplarily, refer to FIG. 2, which is a schematic diagram of flow distribution of heat exchange fluid in heat exchange channels of a heat exchanger in the embodiment of the present disclosure. In FIG. 2, the X axis represents heat exchange channels arranged in a first direction from left to right. The Y axis represents the flow size of the heat exchange fluid in the heat exchange channels. As shown in FIG. 2, the heat exchange fluid is distributed into the heat exchange channels arranged in the first direction through the at least two flow distribution ports. The flow distribution of the heat exchange fluid is less different and more uniform. The flow deviation of the heat exchange fluid in each heat exchange channel is less than 5%, which is conducive to improving the heat dissipation performance of the heat exchanger.

[0066] The scheme in the embodiment of the present disclosure can be applied to, but is not limited to, a heat exchanger 1, a thermal management system including the heat exchanger 1, and an energy storage device including the thermal management system.

[0067] The embodiment of the present disclosure provides an energy storage device. The energy storage device includes a battery cell or a battery device 2, which can store or release electric power.

[0068] Exemplarily, the energy storage device can include a battery cell, which can store or release electric power.

[0069] Exemplarily, the energy storage device can include a battery device 2, which can store or release electric power.

[0070] Exemplarily, the energy storage device can be an energy storage container, an energy storage cabinet, or the like.

[0071] The battery device 2 comprises battery cells. The battery device 2 can be a battery pack.

[0072] The battery cell comprises a shell and an electrode assembly. The electrode assembly comprises positive and negative electrode sheets and a separator film. The shell can be a sealed structure or a non-sealed structure. As an example, the shell is a non-sealed structure, and the shell serves to protect the electrode assembly. The battery cell further comprises a sealing bag between the shell and the electrode assembly, and the sealing bag is used to encapsulate the electrode assembly. Specifically, the sealing bag can be a bag-shaped insulating member or an aluminum-plastic film.

[0073] The energy storage device of the embodiment of the present disclosure further comprises a mounting box and a thermal management system. The battery device 2 is connected with a first temperature regulating flow path to manage the temperature of the battery device 2. The battery device 2 is arranged in the mounting box.

[0074] The thermal management system of the embodiment of the present disclosure, please refer to FIG. 6, comprises a first temperature regulating flow path, a circulating pump 3, a first fan 4 and a heat exchanger 1. The first fan 4 is used to dissipate heat from the heat exchanger 1. The first temperature regulating flow path is used to provide heat exchange fluid to the device to be managed to adjust the temperature. The heat exchanger 1 and the circulating pump 3 are connected in series in the first temperature regulating flow path.

[0075] As an example, the device to be managed can be the battery device 2.

[0076] As an example, please refer to FIG. 6, the thermal management system can further comprise a water heater 8.

[0077] As an example, the flow path shown as S1 in FIG. 6 is the first temperature regulating flow path. The water heater 8, the heat exchanger 1 and the circulating pump 3 are connected in series in the first temperature regulating flow path.

[0078] As an example, the heat exchanger 1 is used to adjust the temperature of the battery device 2 of the energy storage device.

[0079] In the embodiment of the present disclosure, the circulating pump 3 is used to pressurize the heat exchange fluid in the first temperature regulating flow path, so that the heat exchange fluid can circulate in the first temperature regulating flow path, and then the heat exchange fluid can flow through the battery device 2 to take away the heat generated by the battery device 2 in the normal use state. The heat regulating fluid is cooled in the heat exchanger 1. The airflow generated by the first fan 4 is used to cool the heat exchange fluid in the heat exchanger 1, which is conducive to improving the heat dissipation efficiency of the heat exchanger 1.

[0080] The heat exchanger of the embodiments of the present disclosure, please refer to FIG. 3-5, the heat exchanger 1 includes heat exchange flow channel 11 and flow collection channel 12. The number of heat exchange flow channel 11 is at least two, the arrangement direction of the at least two heat exchange flow channel 11 is the first direction, the flow channel extension direction of the heat exchange flow channel 11 is the second direction arranged crossing the first direction, the flow collection channel 12 is used for splitting the fluid to the heat exchange flow channel 11 or collecting the fluid in the heat exchange flow channel 11, at least one flow collection channel 12 includes at least two split ports 12a arranged in the first direction, the at least two split ports 12a of the flow collection channel 12 are communicated with each other, the split port 12a of the flow collection channel 12 is communicated with the at least two heat exchange flow channel 11 between the two end flow collection channels 12.

[0081] Exemplarily, the axial direction of the heat exchange flow channel 11 is the second direction arranged crossing the first direction.

[0082] Exemplarily, the heat exchange flow channel 11 is connected with the flow collection channel 12 at the opposite ends along the second direction.

[0083] Exemplarily, the at least two split ports 12a of the at least one end flow collection channel 11 are communicated with each other.

[0084] Exemplarily, the at least two split ports 12a of each end flow collection channel 11 are communicated with each other.

[0085] Exemplarily, the split port 12a is arranged spaced apart from the heat exchange flow channel 11.

[0086] Exemplarily, the direction shown as R1 in FIG. 3-5 is the first direction, and the direction shown as R2 is the second direction.

[0087] Exemplarily, the first direction can be arranged perpendicular to the second direction.

[0088] It needs to be explained that, please refer to FIG. 3-5, the split port 12a is arranged on the flow collection channel 12 and communicated with the interface of the flow collection channel 12 and the heat exchange flow channel 11, the at least two split ports 12a arranged spaced apart in the first direction split the heat exchange fluid to two different positions of the flow collection channel 12 along the first direction, and the heat exchange fluid in the flow collection channel 12 is split and then enters the heat exchange flow channel 11 through the interface of the flow collection channel 12 and the heat exchange flow channel 11.

[0089] Exemplarily, please refer to FIG. 3-5, the split port 12a is arranged on the side of the flow collection channel 12 away from the heat exchange flow channel 11 along the second direction.

[0090] Exemplarily, please refer to FIG. 3-5, the flow collection channel 12 can be arranged across the at least two heat exchange flow channel 11 along the first direction.

[0091] Exemplarily, please refer to FIG. 3-5, the manifold flow channel 12 can be arranged across all the heat exchange flow channels 11 along the first direction, and one end of the manifold flow channel 12 along the second direction is in communication with the corresponding one end of all the heat exchange flow channels 11, and the other end of the manifold flow channel 12 is in communication with the corresponding other end of all the heat exchange flow channels 11.

[0092] Exemplarily, the material of the heat exchange flow channel 11 can not be limited, for example, can be copper or aluminum.

[0093] Exemplarily, the material of the manifold flow channel 12 can not be limited, for example, can be copper or aluminum.

[0094] The flow rate refers to the amount of fluid flowing through the effective cross section of the closed pipe or open channel per unit time.

[0095] Exemplarily, the flow rate can be the mass of fluid flowing per second. The unit of flow rate can be kg / s, i.e., kilograms per second.

[0096] In the embodiment of the present disclosure, the manifold flow channel 12 is provided with at least two flow distribution ports 12a spaced apart along the first direction and in communication, and the heat exchange fluid is distributed into the manifold flow channel 12 through the at least two flow distribution ports 12a and is distributed to the heat exchange flow channels 11 through the interface between the manifold flow channel 12 and the heat exchange flow channels 11, which is beneficial to reduce the maximum distance between the flow distribution port 12a and the heat exchange flow channel 11 in the first direction, make the flow rate in each heat exchange flow channel 11 more uniform, thereby improving the uniformity of heat exchange of the heat exchanger 1, and is beneficial to reduce the flow resistance of the heat exchange fluid in the heat exchanger 1.

[0097] In some embodiments, please refer to FIG. 3-5, along the first direction, the middle position of the arrangement distance of the heat exchange flow channels 11 is the preset center line 1a, and along the first direction, the flow distribution port 12a is arranged to be distributed on both sides of the preset center line 1a.

[0098] Exemplarily, FIG. 3-5, at least one of the two end manifold flow channels 12 includes at least two flow distribution ports 12a arranged spaced apart along the first direction, and the at least two flow distribution ports 12a on the at least one of the two end manifold flow channels 12 are arranged to be distributed on both sides of the preset center line 1a.

[0099] Exemplarily, FIG. 3-5, at least two flow distribution ports 12a on each of the two end manifold flow channels 12 are arranged to be distributed on both sides of the preset center line 1a.

[0100] Exemplarily, as shown in FIGS. 3-5, the heat exchange flow channels 11 are arranged on both sides of the preset center line 1a along the first direction, and the distance between the heat exchange flow channel 11 farthest from the preset center line 1a on each side and the preset center line 1a is a first distance, and the first distances on both sides are equal, and the at least one end collecting flow channel 12 is provided with a flow distribution port 12a on both sides of the preset center line 1a.

[0101] Exemplarily, as shown in FIGS. 3-5, the at least one end collecting flow channel 12 is provided with a flow distribution port 12a on both sides of the preset center line 1a.

[0102] The preset center line 1a is perpendicular to the first direction.

[0103] Exemplarily, as shown in FIGS. 3-5, the distance S1 is the first distance, and S1 on both sides of the preset center line 1a is equal.

[0104] Exemplarily, as shown in FIGS. 3-5, the at least one end collecting flow channel 12 is provided with a flow distribution port 12a on both sides of the preset center line 1a.

[0105] In the embodiment of the present disclosure, along the first direction, the flow distribution port 12a is arranged to be distributed on both sides of the preset center line 1a, so that the preset center line 1a at the center position has a flow distribution port 12a on both sides, and then the heat exchange fluid can flow into the collecting flow channel 12 from both sides of the preset center line 1a and then enter the heat exchange flow channel 11, which is beneficial to further improve the uniformity of the flow in the heat exchange flow channel 11, and then is beneficial to improve the heat dissipation efficiency of the heat exchanger 1.

[0106] In an embodiment, as shown in FIGS. 3 and 4, the distance between the flow distribution port 12a on one side of the preset center line 1a of the collecting flow channel 12 and the preset center line 1a is a second distance, and the distance between the corresponding flow distribution port 12a on the other side of the preset center line 1a of the collecting flow channel 12 and the preset center line 1a is a third distance, and the second distance and the third distance are equal.

[0107] Exemplarily, as shown in FIGS. 3 and 4, the at least one end collecting flow channel 12 has a plurality of flow distribution ports 12a on one side of the preset center line 1a, the distance between each flow distribution port 12a on one side of the preset center line 1a of the at least one end collecting flow channel 12 and the preset center line 1a is a second distance, and the distance between the corresponding flow distribution port 12a on the other side of the preset center line 1a of the collecting flow channel 12 and the preset center line 1a is a third distance, and the second distance is equal to the third distance.

[0108] Exemplarily, as shown in FIGS. 3 and 4, the distance S2 is the second distance, and the distance S3 is the third distance, and S2=S3, so that the flow distribution port 12a can be uniformly arranged on both sides of the preset center line 1a.

[0109] Exemplarily, referring to FIG. 3 and FIG. 4, the number of the distribution ports 12a of the collecting flow channels 12 at one end of the heat exchange flow channels 11 along the second direction is two, and the two distribution ports 12a are respectively arranged on opposite sides of the preset center line la, and the distance between the two distribution ports 12a along the first direction and the preset center line la is equal.

[0110] In the embodiments of the present disclosure, the second distance and the third distance are equal, so that the distribution ports 12a can be uniformly arranged on opposite sides of the preset center line la, and then the heat exchange fluid can flow into the collecting flow channels 12 from opposite sides of the preset center line la and enter the heat exchange flow channels 11 with substantially the same flow resistance, which is beneficial to further improve the uniformity of the flow in the heat exchange flow channels 11, and then is beneficial to improve the heat dissipation efficiency of the heat exchanger 1.

[0111] It can be understood that the size relationship between the second distance and the third distance can not be limited,

[0112] Exemplarily, referring to FIG. 5, the distance shown as S2 in FIG. 5 is the second distance, and the distance shown as S3 is the third distance, and S2 < S3.

[0113] In some embodiments, referring to FIG. 3 and FIG. 4, along the second direction, the projection area of each distribution port 12a of the collecting flow channels 12 at one end at least partially overlaps the projection area of the corresponding distribution port 12a of the collecting flow channels 12 at the other end.

[0114] It needs to be explained that, referring to FIG. 3 and FIG. 4, the projection area of each distribution port 12a of the collecting flow channels 12 at one end at least partially overlaps the projection area of the corresponding distribution port 12a of the collecting flow channels 12 at the other end refers to that, along the second direction, each distribution port 12a of the collecting flow channels 12 at one end at least partially aligns with the corresponding distribution port 12a of the collecting flow channels 12 at the other end.

[0115] Exemplarily, referring to FIG. 3 and FIG. 4, along the second direction, each distribution port 12a of the collecting flow channels 12 at one end completely aligns with the corresponding distribution port 12a of the collecting flow channels 12 at the other end.

[0116] Exemplarily, referring to FIG. 3 and FIG. 4, the number of the distribution ports 12a of the header flow channels 12 located at two ends of the heat exchange flow channels 11 in the second direction is two, and the projection area of one of the distribution ports 12a of one of the header flow channels 12 located above the preset center line 1a and the projection area of one of the distribution ports 12a of the other header flow channel 12 located above the preset center line 1a can partially overlap or completely overlap; the projection area of one of the distribution ports 12a of one of the header flow channels 12 located below the preset center line 1a and the projection area of one of the distribution ports 12a of the other header flow channel 12 located below the preset center line 1a can partially overlap or completely overlap.

[0117] In the embodiments of the present disclosure, the projection area of each of the distribution ports 12a of one of the header flow channels 12 at least partially overlaps with the projection area of the corresponding distribution port 12a of the other header flow channel 12, so that each of the distribution ports 12a of one of the header flow channels 12 is at least partially aligned with the corresponding distribution port 12a of the other header flow channel 12 in the second direction, which is beneficial to balance the flow resistance of the heat exchange fluid in the heat exchanger 1, and in turn is beneficial to improve the uniformity of the flow of the heat exchange fluid in the heat exchanger 1, and in turn is beneficial to improve the heat dissipation efficiency of the heat exchanger 1.

[0118] It can be understood that the positional relationship between the projection area of each of the distribution ports 12a of one of the header flow channels 12 and the projection area of the corresponding distribution port 12a of the other header flow channel 12 can not be limited.

[0119] Exemplarily, referring to FIG. 5, the projection area of each of the distribution ports 12a of one of the header flow channels 12 and the projection area of the corresponding distribution port 12a of the other header flow channel 12 are staggered with each other.

[0120] In some embodiments, referring to FIG. 3 and FIG. 4, the heat exchanger 1 further comprises a flow guiding assembly 13, and the flow guiding assembly 13 is connected to at least two of the distribution ports 12a of the header flow channels 12, so that the fluid in the flow guiding assembly 13 can be distributed to the header flow channels 12.

[0121] Exemplarily, referring to FIG. 5, each of the header flow channels 12 is connected to the flow guiding assembly 13, and each of the flow guiding assemblies 13 is arranged across at least two of the distribution ports 12a of the corresponding header flow channel 12, and the side of each of the distribution ports 12a away from the header flow channel 12 is connected to the corresponding flow guiding assembly 13.

[0122] In the embodiments of the present disclosure, the heat exchange fluid is guided to the corresponding distribution ports 12a by the flow guiding assembly 13, so that the flow through each of the heat exchange flow channels 11 is relatively uniform.

[0123] In some embodiments, referring to FIG. 3 and FIG. 4, the flow guide assembly 13 includes a flow guide channel 131 having external interfaces for receiving or discharging heat exchange fluid of external equipment into or out of the heat exchanger.

[0124] For example, referring to FIG. 3 and FIG. 4, one end of the external interface of the flow guide channel 131 is used for receiving heat exchange fluid, and the other end of the external interface of the flow guide channel 131 is used for discharging heat exchange fluid, and the number of external interfaces of each end of the flow guide channel 131 is less than the number of branch ports 12a on the corresponding collecting channel 12.

[0125] It should be noted that, referring to FIG. 3 and FIG. 4, each end of the flow guide assembly 13 is arranged across at least two branch ports 12a of the corresponding collecting channel 12, and each branch port 12a is communicated with the corresponding flow guide assembly 13 on the side away from the collecting channel 12, which means that the flow guide assembly 13 is connected with the collecting channel 12 at each branch port 12a. The flow guide channel 131 has external interfaces communicated with the branch ports 12a, and the number of external interfaces of each end of the flow guide channel 131 is less than the number of corresponding branch ports 12a. By collecting a large number of branch ports 12a through a small number of external interfaces of the flow guide channel 131, only a small number of external interfaces are needed for external installation, which is beneficial to improve the convenience of installation of the heat exchanger 1.

[0126] For example, the external interface is communicated with the branch port 12a.

[0127] In the embodiments of the present disclosure, the flow guide channel 131 receives heat exchange fluid of external equipment through the external interface and guides the heat exchange fluid into the collecting channel 12 at each branch port 12a, and then flows to the heat exchange channel 11 through the collecting channel 12 for heat exchange. The heat exchange fluid flowing through the heat exchange channel 11 is discharged from the heat exchanger through the corresponding external interface. The flow guide channel 131 can better receive or discharge heat exchange fluid through the external interface.

[0128] It can be understood that the heat exchanger 1 can not be provided with the flow guide assembly 13, and the heat exchanger 1 can be directly installed externally through the branch port 12a.

[0129] In some embodiments, referring to FIG. 3 and FIG. 4, the heat exchanger includes two collecting channels 12 and two flow guide assemblies 13, and the number of external interfaces of each flow guide assembly 13 is one.

[0130] Exemplarily, referring to FIG. 3 and FIG. 4, the heat exchange flow channel 11 is provided with the flow collecting channel 12 and the corresponding connected flow guiding assembly 13 at both ends along the second direction, the number of the external connection interfaces of the flow guiding channel 131 at each end is one, one external connection interface of the flow guiding channel 131 at one end is used for receiving the heat exchange fluid, and one external connection interface of the flow guiding channel 131 at the other end is used for discharging the heat exchange fluid. Exemplarily, referring to FIG. 4, the heat exchange flow channel 11 is provided with the flow collecting channel 12 and the corresponding connected flow guiding assembly 13 at both ends along the second direction, the number of the external connection interfaces of the flow guiding channel 131 at each end is one, one external connection interface of the flow guiding channel 131 at one end and one external connection interface of the flow guiding channel 131 at the other end are located on the preset center line la.

[0131] Exemplarily, referring to FIG. 3, the heat exchange flow channel 11 is provided with the flow collecting channel 12 and the corresponding connected flow guiding assembly 13 at both ends along the second direction, the number of the external connection interfaces of the flow guiding channel 131 at each end is one, one external connection interface of the flow guiding channel 131 at one end is located at one end of the flow guiding channel 131 along the first direction, and one external connection interface of the flow guiding channel 131 at the other end is located at the other end of the flow guiding channel 131 along the first direction.

[0132] In the embodiments of the present disclosure, the number of the external connection interfaces of the flow guiding channel 131 at each end is one, so that one external connection interface of the flow guiding channel 131 at one end can be used for receiving the heat exchange fluid, and one external connection interface of the flow guiding channel 131 at the other end can be used for discharging the heat exchange fluid, only two external connection interfaces are needed for external installation, which is beneficial to improve the convenience of the installation of the heat exchanger 1.

[0133] It can be understood that the number of the external connection interfaces of the flow guiding channel 131 at each end can not be limited. Exemplarily, the number of the external connection interfaces of the flow guiding channel 131 at each end can be two.

[0134] In some embodiments, referring to FIG. 3, the opening direction of the external connection interface of the flow guiding channel 131 is arranged along the extension direction of the corresponding flow guiding channel 131.

[0135] It needs to be explained that the corresponding flow guiding channel 131 refers to the corresponding flow guiding channel 131 where the interface is located.

[0136] Exemplarily, the opening direction of the external connection interface of the flow guiding channel 131 at each end is arranged along the extension direction of the corresponding flow guiding channel 131.

[0137] In the embodiments of the present disclosure, the opening direction of the external interface of each end flow channel 131 is arranged along the extension direction of the corresponding flow channel 131, so that the external interface of each end flow channel 131 is arranged at the end of the corresponding flow channel 131 in the first direction, and then the cross-sectional area of the external interface for receiving or discharging the heat exchange fluid can be as close as possible to the cross-sectional area of the flow channel 131, so as to reduce the flow resistance of the heat exchange fluid in the process of entering the flow channel 131 through the external interface.

[0138] In some embodiments, referring to FIG. 4, the opening direction of the external interface of the flow channel 131 is arranged transversely to the extension direction of the corresponding flow channel 131.

[0139] Exemplarily, referring to FIG. 4, the opening direction of the external interface of each end flow channel 131 is arranged transversely to the extension direction of the corresponding flow channel 131.

[0140] Exemplarily, referring to FIG. 4, the external interface is located between the two branch ports 12a of the corresponding flow channel 12 in the first direction. The external interface is located between the two branch ports 12a of the corresponding flow channel 12 in the first direction, so that the distance between the external interface and the two branch ports 12a of the corresponding flow channel 12 is relatively close, which is beneficial to improve the uniformity of the heat exchange fluid flowing through the branch port 12a, and then is beneficial to improve the uniformity of the heat exchange fluid flowing through the heat exchange channel 11.

[0141] In the embodiments of the present disclosure, the opening direction of the external interface of the flow channel 131 is arranged transversely to the extension direction of the corresponding flow channel 131, so that it is closer to the preset center line 1a in the extension direction of the flow channel 131, which is beneficial to improve the uniformity of the heat exchange fluid flowing through the branch port 12a, and then is beneficial to improve the uniformity of the heat exchange fluid flowing through the heat exchange channel 11.

[0142] In some embodiments, referring to FIG. 4, in the first direction, the external interface is arranged to be located between the corresponding branch ports 12a of the flow channel 12 respectively.

[0143] In the embodiments of the present disclosure, the external interface is between the branch ports 12a, and the heat exchange fluid received from the external interface can flow to the branch ports 12a of the flow channel 12 relatively uniformly.

[0144] In some embodiments, referring to FIG. 3, in the first direction, the external interface is arranged to be located outside the corresponding branch ports of the flow channel respectively.

[0145] In some embodiments, in the first direction, the external interface is arranged to be located inside one of the branch ports of the flow channel, and the other is located outside the other branch port of the flow channel.

[0146] In some embodiments, referring to FIG. 3, the external connection interfaces are respectively located at two ends of the flow guide assembly 13 along the first direction.

[0147] Exemplarily, referring to FIG. 3, the heat exchange flow channel 11 is provided with the flow collecting flow channel 12 and the corresponding connected flow guide assembly 13 at two ends along the second direction. The external connection interface of the flow guide assembly 13 at one end is located at one end of the corresponding flow guide assembly 13 along the first direction, and the external connection interface of the flow guide assembly 13 at the other end is located at the other end of the corresponding flow guide assembly 13 along the first direction.

[0148] In the embodiments of the present disclosure, when the airflow for dissipating heat of the heat exchanger flows along the second direction, the external connection interfaces respectively located at two ends of the flow guide assembly 13 can reduce the obstruction of the external connection pipe to the airflow, and improve the heat dissipation efficiency.

[0149] In some embodiments, on one of the flow collecting flow channels 12, the distance between the external connection interface and the flow dividing port 12a arranged adjacent thereto is a fourth distance, and on the other of the flow collecting flow channels 12, the distance between the external connection interface and the flow dividing port 12a arranged adjacent thereto is a fifth distance, and the fourth distance is equal to the fifth distance.

[0150] In the embodiments of the present disclosure, the fourth distance is equal to the fifth distance, so that the closeness of the external connection interfaces at two ends to the corresponding adjacent flow dividing ports 12 is substantially equivalent.

[0151] In some embodiments, referring to FIG. 4, on the flow collecting flow channel 12 at the same end, the distance between the flow dividing port 12a located at one side of the external connection interface along the first direction and the external connection interface is a sixth distance, and the distance between the flow dividing port 12a located at the other side of the external connection interface along the first direction and the external connection interface is a seventh distance, and the sixth distance is equal to the seventh distance.

[0152] Exemplarily, the distance shown as S4 in FIG. 4 is the sixth distance, and the distance shown as S5 is the seventh distance, and S4=S5.

[0153] Exemplarily, referring to FIG. 4, the number of the flow dividing ports 12a of the flow collecting flow channel 12 located at one end of the heat exchange flow channel 11 along the second direction is two, the two flow dividing ports 12a are respectively arranged on opposite sides of the preset center line 1a, the distance between the two flow dividing ports 12a along the first direction and the preset center line 1a is equal, and the external connection interface is located at the position of the preset center line 1a.

[0154] In the embodiments of the present disclosure, the fourth distance is equal to the fifth distance, so that the distance between the external connection interface and the corresponding two flow dividing ports 12a is equal, which is conducive to improving the uniformity of the heat exchange fluid flowing through the flow dividing ports 12a, and then is conducive to improving the uniformity of the heat exchange fluid flowing through the heat exchange flow channel 11.

[0155] It can be understood that the fourth distance and the fifth distance can not be limited in size. Exemplarily, the fourth distance can also not be equal to the fifth distance.

[0156] In some embodiments, referring to FIGS. 3 and 4, one end of the external interface of the drainage flow channel 131 is the liquid inlet 131a for receiving the heat exchange fluid, and the other end of the external interface of the drainage flow channel 131 is the liquid outlet 131b for discharging the heat exchange fluid. The heat exchange flow channel 11 is located between the liquid inlet 131a and the liquid outlet 131b along the first direction.

[0157] In the embodiments of the present disclosure, when the airflow for dissipating heat of the heat exchanger moves along the second direction, the heat exchange flow channel 11 is located between the liquid inlet 131a and the liquid outlet 131b along the first direction, so that the resistance of the airflow in the second direction of the heat exchange flow channel 11 can be reduced as much as possible, thereby facilitating the reduction of the airflow resistance near the heat exchange flow channel 11 and the improvement of the heat dissipation efficiency of the heat exchange flow channel 11.

[0158] It can be understood that the position relationship between the drainage flow channel 131 and the heat exchange flow channel 11 can not be limited. Exemplarily, the heat exchange flow channel 11 can also be located outside the liquid inlet 131a and the liquid outlet 131b along the second direction.

[0159] In some embodiments, referring to FIGS. 3 and 4, the drainage assembly 13 further comprises a connecting seat 132, the connecting seat 132 is connected with the flow collection channel 12 and the drainage flow channel 131 respectively, and the connecting seat 132 is in communication with the flow collection channel 12 and the drainage flow channel 131 at two ends along the arrangement direction of the flow collection channel 12 and the drainage flow channel 131.

[0160] Exemplarily, the cross-sectional shape of the connecting seat 132 is not limited, for example, the connecting seat 132 can be a tubular structure or a block structure.

[0161] Exemplarily, two flow distribution ports 12a can be in communication with the flow collection channel 12 and one connecting seat 132.

[0162] It needs to be explained that, referring to FIGS. 3 and 4, the connecting seat 132 is in communication with the flow collection channel 12 and the drainage flow channel 131 at two ends along the arrangement direction of the flow collection channel 12 and the drainage flow channel 131, which means that one end of the connecting seat 132 is in communication with the flow collection channel 12, and the other end is in communication with the drainage flow channel 131.

[0163] In the embodiments of the present disclosure, the connecting seat 132 is in communication with the flow collection channel 12 and the drainage flow channel 131 at two ends along the arrangement direction of the flow collection channel 12 and the drainage flow channel 131, which not only connects the drainage flow channel 131 with the flow collection channel 12, but also connects the drainage assembly 13 with the flow collection channel 12, thereby facilitating the installation of the drainage assembly 13.

[0164] In some embodiments, the cross-sectional area of the flow channel 131 is equal to that of the corresponding flow collecting channel 12.

[0165] For example, the cross-sectional shape of the flow channel 131 and the flow collecting channel 12 is circular, and the inner diameter of the flow channel 131 is equal to that of the flow collecting channel 12.

[0166] It should be noted that the cross-sectional shape of the flow channel 131 and the flow collecting channel 12 is circular, which means that the cross-sectional shape of the flow channel 131 perpendicular to the extension direction of the flow channel 131 is circular, and the cross-sectional shape of the flow collecting channel 12 perpendicular to the extension direction of the flow collecting channel 12 is also circular. The inner diameter of the flow channel 131 is equal to that of the flow collecting channel 12, so that the flow resistance of the heat exchange fluid flowing from the flow channel 131 into the flow collecting channel 12 is small, and the heat exchange fluid can flow smoothly between the flow channel 131 and the flow collecting channel 12.

[0167] For example, the cross-sectional shape of the flow channel can be square or oblate.

[0168] For example, the cross-sectional shape of the flow collecting channel can be square or oblate.

[0169] In the embodiments of the present disclosure, the cross-sectional area of the flow channel 131 is equal to that of the flow collecting channel 12, so that the heat exchange fluid can flow smoothly between the flow channel 131 and the flow collecting channel 12, which is beneficial to reduce the flow resistance.

[0170] It can be understood that the size relationship between the inner diameter of the flow channel 131 and the inner diameter of the flow collecting channel 12 can not be limited.

[0171] For example, the inner diameter of the flow channel 131 and the inner diameter of the flow collecting channel 12 can not be equal.

[0172] For example, the cross-sectional area of the flow channel 131 and the corresponding flow collecting channel 12 can not be equal.

[0173] In some embodiments, the cross-sectional area of the flow collecting channel 12 is equal to that of the flow channel 131. This is beneficial to reduce the flow resistance, so that the heat exchange fluid can flow smoothly between the flow collecting channel 12 and the flow channel 131.

[0174] For example, the cross-sectional shape of the flow collecting channel 12 can be circular, square or oblate.

[0175] In some embodiments, the cross-sectional area of the flow collecting channel 12 is equal to that of the flow channel 131. This is beneficial to reduce the flow resistance, so that the heat exchange fluid can flow smoothly between the flow collecting channel 12 and the flow channel 131.

[0176] In some embodiments, the cross-sectional area of the external interface is equal to the cross-sectional area of the flow guide channel 131. This is advantageous in reducing flow resistance, allowing the heat exchange fluid to flow more smoothly between the external interface and the flow guide channel 131.

[0177] Exemplarily, the cross-sectional shape of the external interface can be circular, square, or oblate.

[0178] In some embodiments, referring to FIGS. 3 and 4, along the second direction, the flow collection channel 12 and the heat exchange channel 11 are arranged between two flow guide assemblies 13.

[0179] In the embodiments of the present disclosure, when the air flow for dissipating heat from the heat exchanger flows along the second direction, the flow collection channel 12 and the heat exchange channel 11 are arranged between two flow guide assemblies 13, so that the resistance of the heat exchange channel 11 in the second direction can be reduced as much as possible, thereby facilitating the reduction of air flow resistance near the heat exchange channel 11 and improving the heat dissipation efficiency of the heat exchange channel 11.

[0180] Exemplarily, the arrangement direction of the flow guide assembly 13 and the flow collection channel 12 are arranged transversely to the first direction and the second direction respectively, and the arrangement direction of the flow guide assembly 13 and the flow collection channel 12, the first direction, and the second direction are not coplanar.

[0181] In some embodiments, referring to FIG. 6, the thermal management system further comprises a second temperature adjustment flow path, a refrigeration circuit, a compressor 5, a condenser 6, a second fan 7, and a heat exchange device 9. The second fan 7 is used to cool the condenser 6. The heat exchange device 9 comprises a first heat exchange flow path and a second heat exchange flow path for heat exchange. The first heat exchange flow path and the second heat exchange flow path are isolated from each other. The second temperature adjustment flow path is connected in series with the circulating pump 3. The second temperature adjustment flow path is connected in parallel with the heat exchanger 1. The first heat exchange flow path is connected in series with the second temperature adjustment flow path. The second heat exchange flow path, the compressor 5, and the condenser 6 are connected in series in the refrigeration circuit.

[0182] Exemplarily, referring to FIG. 6, the thermal management system can further comprise a liquid storage tank 10 and a throttling valve 14. The liquid storage tank 10 is used to store the refrigerant compressed by the compressor 5. The throttling valve 14 is used to control the flow of the refrigerant.

[0183] Exemplarily, the heat exchange device 9 can be a plate heat exchanger 1.

[0184] Exemplarily, the flow path shown as S2 in FIG. 6 is the second temperature adjustment flow path. The flow path shown as S21 is the first heat exchange flow path. The circuit shown as S3 is the refrigeration circuit. The flow path shown as S31 is the second heat exchange flow path. The first heat exchange flow path of the heat exchange device 9, the water heater 8, and the circulating pump 3 are connected in series in the second temperature adjustment flow path. The radiator is connected in parallel with the second temperature adjustment flow path. The compressor 5, the second heat exchange flow path of the heat exchange device 9, the throttling valve 14, the liquid storage tank 10, and the condenser 6 are connected in series in the refrigeration circuit.

[0185] Exemplarily, referring to FIG. 6, when the external environment temperature is high, the heat management system can operate the refrigeration circuit and the second temperature adjusting flow path to dissipate heat of the battery device 2, the circulating pump 3 drives the heat exchange fluid to circulate in the second temperature adjusting flow path, so as to carry heat generated by the battery device 2 in a normal use state to the first heat exchange flow path of the heat exchange device 9, the compressor 5 drives the refrigerant in the refrigeration circuit to circulate in the refrigeration circuit, so as to exchange heat between the refrigerant in the second heat exchange flow path of the heat exchange device 9 and the heat exchange fluid in the first heat exchange flow path, and the refrigerant carrying heat is dissipated in the condenser 6 to refrigerate the battery device 2; when the external environment temperature is low, the heat management system can only operate the first temperature adjusting flow path to dissipate heat of the battery device 2, so that heat generated by the battery device 2 in a normal use state is only dissipated through the radiator, without the need to operate the refrigeration circuit and the second temperature adjusting flow path, which is conducive to reducing the power consumption of the heat management system.

[0186] In the embodiments of the present disclosure, the heat management system can select a reasonable heat dissipation mode according to the temperature of the external environment, which is conducive to reducing the power consumption of the heat management system, and the airflow generated by the second fan 7 is used to dissipate heat of the refrigerant in the condenser 6, which is conducive to improving the heat dissipation efficiency of the condenser 6.

[0187] In some embodiments, the heat exchanger 1 is a heat exchange water tank, and the heat exchange fluid flowing through the heat exchanger 1 is water.

[0188] In the embodiments of the present disclosure, the specific heat capacity of water is large, and a unit volume of water can carry more heat, so that a unit volume of heat exchange fluid can carry more heat generated by the battery device 2 in a normal use state to the heat exchanger 1 for heat dissipation, which is conducive to improving the heat dissipation effect of the battery device 2.

[0189] The heat exchanger 1 in the embodiments of the present disclosure, referring to FIGS. 2-6, the heat exchange fluid is divided into the collecting flow channel 12 from the flow guide assembly 13 through the flow dividing port 12a, and then dispersed into each heat exchange flow channel 11, so as to improve the uniformity of the flow of the heat exchange fluid into each heat exchange flow channel 11. The liquid inlet 131a of the flow guide flow channel 131 at one end along the second direction is arranged below the flow guide flow channel 131 along the first direction, and the liquid outlet 131b of the flow guide flow channel 131 at the other end is arranged above the flow guide flow channel 131 along the first direction, so that the liquid inlet 131a and the liquid outlet 131b are diagonally arranged, which is conducive to reducing air bubbles in the heat exchanger 1.

[0190] In an embodiment, the size of the plurality of heat exchange flow channels 11 stacked along the first direction is greater than or equal to 350 mm.

[0191] Exemplarily, referring to FIG. 3, the sum of the two first distances is greater than or equal to 350 mm.

[0192] In one embodiment, the plurality of heat exchange channels 11 stacked along the first direction has a dimension greater than or equal to 370 mm.

[0193] For example, referring to FIG. 3, the sum of the two first distances is greater than or equal to 370 mm.

[0194] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than limit them; although the present disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions recorded in the foregoing embodiments, or some or all of the technical features can be replaced equivalently; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present disclosure, and they should all be included in the scope of the claims and the specification of the present disclosure. In particular, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present disclosure is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A heat exchanger, comprising: a plurality of heat exchange channels, the plurality of heat exchange channels being arranged in a first direction, the plurality of heat exchange channels extending in a second direction transverse to the first direction; a plurality of flow collecting channels for distributing or collecting fluid to or from the plurality of heat exchange channels, at least one of the plurality of flow collecting channels comprising a plurality of distribution ports arranged in the first direction, the plurality of distribution ports of the at least one of the plurality of flow collecting channels being in fluid communication with each other, the plurality of distribution ports of the at least one of the plurality of flow collecting channels being in fluid communication with the plurality of heat exchange channels located between the two ends of the at least one of the plurality of flow collecting channels.

2. The heat exchanger of claim 1, wherein, In the first direction, a middle position of an arrangement distance of the plurality of heat exchange channels is a preset center line, and in the first direction, the plurality of distribution ports are arranged on both sides of the preset center line.

3. The heat exchanger of claim 2, wherein, A distance between the plurality of distribution ports of the at least one of the plurality of flow collecting channels on one side of the preset center line and the preset center line is a second distance, and a distance between the plurality of distribution ports of the at least one of the plurality of flow collecting channels on another side of the preset center line and the preset center line is a third distance, the second distance being equal to the third distance.

4. The heat exchanger according to any one of claims 1 to 3, wherein In the second direction, a projection area of each of the plurality of distribution ports of one of the plurality of flow collecting channels at least partially overlaps a projection area of a corresponding one of the plurality of distribution ports of another of the plurality of flow collecting channels.

5. The heat exchanger according to any one of claims 1 to 4, wherein The heat exchanger further comprises a flow guiding assembly, the flow guiding assembly being in fluid communication with the plurality of distribution ports of the plurality of flow collecting channels, such that fluid in the flow guiding assembly can be distributed to the plurality of flow collecting channels.

6. The heat exchanger of claim 5, wherein, The flow guiding assembly comprises a flow guiding channel, the flow guiding channel having an external interface for receiving fluid of an external device into or out of the heat exchanger.

7. The heat exchanger of claim 6, wherein, The heat exchanger comprises two of the plurality of flow collecting channels and two of the flow guiding assemblies, and each of the flow guiding assemblies has one external interface.

8. The heat exchanger of claim 6 or 7, wherein, An opening direction of the external interface of the flow guiding channel is arranged along or transverse to an extension direction of the flow guiding channel.

9. The heat exchanger according to any one of claims 6 to 8, wherein In the first direction, the external interface is arranged between the plurality of distribution ports of the corresponding one of the plurality of flow collecting channels, or in the first direction, the external interface is arranged outside the plurality of distribution ports of the corresponding one of the plurality of flow collecting channels, or in the first direction, one of the external interfaces is arranged inside one of the plurality of distribution ports of the corresponding one of the plurality of flow collecting channels, and the other of the external interfaces is arranged outside the other of the plurality of distribution ports of the corresponding one of the plurality of flow collecting channels.

10. The heat exchanger according to any one of claims 6 to 9, wherein In the first direction, the external interface is arranged at two ends of the flow guiding assembly.

11. The heat exchanger according to any one of claims 6 to 10, wherein In one of the plurality of flow collecting channels, a distance between the external interface and the plurality of distribution ports adjacent to the external interface is a fourth distance, and in another of the plurality of flow collecting channels, a distance between the external interface and the plurality of distribution ports adjacent to the external interface is a fifth distance, the fourth distance being equal to the fifth distance.

12. The heat exchanger according to any one of claims 6 to 11, wherein The drainage assembly further comprises a connecting seat connected with the collecting flow channel and the drainage flow channel respectively, and the connecting seat is in communication with the collecting flow channel and the drainage flow channel at two ends along the arrangement direction of the collecting flow channel and the drainage flow channel.

13. The heat exchanger according to claims 6 to 12, wherein The cross-sectional area of the drainage flow channel is equal to that of the corresponding collecting flow channel; and / or, the cross-sectional area of the shunt is equal to that of the collecting flow channel, and / or, the cross-sectional area of the shunt is equal to that of the drainage flow channel, and / or, the cross-sectional area of the external connection interface is equal to that of the drainage flow channel.

14. The heat exchanger according to any one of claims 5 to 13, wherein Along the second direction, the collecting flow channel and the heat exchange flow channel are arranged between the two drainage assemblies.

15. A heat management system comprising a first temperature regulating flow path, a circulating pump, a first fan for cooling the heat exchanger, and the heat exchanger according to any one of claims 1-14, and the heat exchanger and the circulating pump are connected in series in the first temperature regulating flow path.

16. The thermal management system of claim 15, wherein, The heat management system further comprises a second temperature regulating flow path, a refrigeration circuit, a compressor, a condenser, a second fan for cooling the condenser, and a heat exchange device comprising a first heat exchange flow path and a second heat exchange flow path for heat exchange, the first heat exchange flow path and the second heat exchange flow path are isolated from each other, the second temperature regulating flow path is connected in series with the circulating pump, the second temperature regulating flow path is connected in parallel with the heat exchanger, the first heat exchange flow path is connected in series in the second temperature regulating flow path, and the second heat exchange flow path, the compressor and the condenser are connected in series in the refrigeration circuit.

17. The thermal management system of claim 15 or 16, wherein, The heat exchanger is a heat exchange water tank, and the heat exchange fluid flowing through the heat exchanger is water.

18. An energy storage device comprising: a battery device capable of storing or releasing electric power; a mounting box in which the battery device is arranged; the heat management system according to any one of claims 15-17, the battery device being connected with the first temperature regulating flow path to manage the temperature of the battery device.

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