Radiator assembly and converter

Abstract

The utility model discloses a radiator assembly and a converter. The radiator assembly comprises a U-shaped radiating plate and an air duct baffle plate; the U-shaped heat dissipation plate comprises a plane part and two bent parts, the plane part is provided with an installation face and a back face which are oppositely arranged, a first heat dissipation flow channel is formed in the plane part, the installation face is used for installing a first heating device, the two bent parts are bent towards the back face of the plane part, an installation cavity is defined by the two bent parts and the plane part, and second heat dissipation flow channels are formed in the bent parts. The mounting cavity is used for mounting a second heating device; the air duct baffle covers the plane part and / or the bent part, a heat dissipation air duct is defined by the air duct baffle and the plane part and / or the bent part, the heat dissipation air duct is provided with an air outlet, the air duct baffle is provided with an air inlet communicated with the heat dissipation air duct, and the air outlet and the air inlet are both communicated with an internal cavity of the converter. According to the scheme, the radiator assembly is high in radiating efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation structures, in particular to a radiator component and a converter. Background Art

[0002] At present, many converter products use air cooling solutions during the internal thermal design of the module. The heat generated by the loss of power devices, board-level devices and magnetic components inside the unit is removed by the flowing airflow. However, the heat dissipation efficiency of converters using pure air cooling is relatively low. Utility Model Content

[0003] The main purpose of the utility model is to provide a radiator assembly, aiming to provide a radiator assembly with high heat dissipation efficiency.

[0004] To achieve the above object, the utility model provides a heat sink assembly, which is applied to a converter. The converter includes a housing, an internal cavity is formed in the housing, and the heat sink assembly includes:

[0005] U-shaped heat sink, the U-shaped heat sink comprising a plane portion and two bent portions, the plane portion being provided with a mounting surface and a back surface arranged opposite to each other, a first heat dissipation channel being provided in the plane portion, the mounting surface being used to mount a first heating device, the two bent portions being bent toward the back surface of the plane portion, the two bent portions and the plane portion being enclosed to form a mounting cavity, a second heat dissipation channel being provided in the bent portion, and the mounting cavity being used to mount a second heating device;

[0006] An air duct baffle, wherein the air duct baffle cover is arranged on the planar portion and / or the bent portion, and is enclosed with the planar portion and / or the bent portion to form a heat dissipation air duct, the heat dissipation air duct is provided with an air outlet, and the air duct baffle is provided with an air inlet connected to the heat dissipation air duct, and the air outlet and the air inlet of the heat dissipation air duct are both used to communicate with the internal cavity of the inverter.

[0007] In one embodiment of the present utility model, the first heat dissipation channel extends along the length direction of the planar portion;

[0008] And / or, the second heat dissipation channel extends along the length direction of the bending portion.

[0009] In an embodiment of the utility model, the air duct baffle has a length direction, the air inlet is arranged at the middle of the air duct baffle in the length direction, and the air outlet of the heat dissipation air duct is arranged at the end of the air duct baffle.

[0010] In an embodiment of the present invention, two air duct baffles are provided, and the two air duct baffles are respectively covered on both sides of the U-shaped heat dissipation plate to enclose the U-shaped heat dissipation plate to form two heat dissipation air ducts.

[0011] In an embodiment of the present invention, a plurality of heat dissipation fins are provided on a side of the bent portion away from the installation cavity, and the heat dissipation fins are located in the heat dissipation duct.

[0012] In one embodiment of the utility model, the radiator assembly also includes a first side baffle and a second side baffle that are arranged opposite to each other, and the first side baffle and the second side baffle are arranged on two opposite sides of the U-shaped heat dissipation plate, and the first side baffle, the second side baffle and the U-shaped heat dissipation plate enclose the installation cavity.

[0013] In an embodiment of the present utility model, the first side baffle is provided with a connecting flow channel, and the connecting flow channel connects the first heat dissipation flow channel and the second heat dissipation flow channel.

[0014] In an embodiment of the present utility model, the second side baffle is provided with a liquid inlet channel and a liquid outlet channel, the liquid inlet channel is connected to the second heat dissipation channel, and the liquid outlet channel is connected to the first heat dissipation channel.

[0015] In an embodiment of the present invention, the radiator assembly further includes a supporting accessory, and the U-shaped heat dissipation plate is carried by the supporting accessory.

[0016] In one embodiment of the utility model, the supporting attachment includes a slideway, and the U-shaped heat sink is slidably disposed on the slideway;

[0017] And / or, the supporting accessory further includes an insulating support plate, the insulating support plate is connected to a side of the bending portion away from the planar portion and is arranged opposite to the planar portion, and the insulating support plate is used to support and fix the second heating device.

[0018] The utility model also provides a converter, comprising:

[0019] a housing having an internal cavity formed therein;

[0020] The radiator assembly as described above, wherein the radiator assembly is disposed in the internal cavity;

[0021] a first heating device, the first heating device being arranged on a mounting surface of the heat sink assembly;

[0022] a second heating device, the second heating device being arranged in the mounting cavity of the heat sink assembly;

[0023] A fan is arranged in the internal cavity, and the airflow generated by the fan passes through the third heating device and enters the heat dissipation duct from the air inlet for heat exchange, and flows back to the internal cavity from the air outlet of the heat dissipation duct.

[0024] In an embodiment of the present utility model, the shell is provided with a return air duct, and the air outlet of the heat dissipation duct is connected to the internal cavity through the return air duct.

[0025] In an embodiment of the present invention, the converter further includes a third heating device, and the third heating device is disposed in the internal cavity.

[0026] The radiator assembly proposed in the utility model includes a U-shaped heat sink and a duct baffle, the U-shaped heat sink includes a plane portion and two bent portions, wherein the mounting surface of the plane portion can be used to mount a first heating device to dissipate heat for the first heating device, the two bent portions and the plane portion can be enclosed to form a mounting cavity for mounting a second heating device to dissipate heat for the second heating device, at the same time, a heat dissipation duct is enclosed between the duct baffle and the plane portion and / or the bent portion, and the duct baffle is provided with an air inlet, the airflow generated by the fan can be used to take away the heat of the internal cavity of the converter, and enter the heat dissipation duct from the air inlet, and then blow back to the internal cavity of the converter from the air outlet of the heat dissipation duct, and the cycle is repeated. In this process, the airflow can be cooled through the first heat dissipation channel and the second heat dissipation channel to reduce the heat in the internal cavity.

[0027] Therefore, the heat sink assembly proposed in this solution cooperates with the air duct design of the inverter as a whole. While dissipating heat to the first heat-generating device (including but not limited to power devices), it can also dissipate heat to the second heat-generating device (including but not limited to inductors and reactors). At the same time, it can also dissipate heat to the third heat-generating device in the internal cavity (including but not limited to boards and contactors). It combines liquid cooling and air cooling to achieve heat dissipation, thereby effectively improving the heat dissipation efficiency.

[0028] In addition, a cooling method combining liquid cooling and air cooling is used to achieve simultaneous heat dissipation of at least three lossy components, which can reuse the functions of the radiator components, greatly reduce the size of the whole machine, and improve the power density of the whole machine; at the same time, it can also reduce the number of fans used and reduce the noise caused by multiple fans. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0030] Figure 1 It is a structural schematic diagram of a first perspective of an embodiment of the utility model when the radiator assembly and the supporting accessory cooperate;

[0031] Figure 2 It is a structural schematic diagram of another perspective of an embodiment of the utility model when the radiator assembly and the supporting accessory cooperate;

[0032] Figure 3 It is a partial structural schematic diagram of an embodiment of a radiator assembly of the utility model;

[0033] Figure 4 It is a partial structural schematic diagram of an embodiment of a radiator assembly of the utility model;

[0034] Figure 5 This is a structural schematic diagram of a first side baffle in an embodiment of a radiator assembly of the utility model;

[0035] Figure 6 This is a structural schematic diagram of a second side baffle in an embodiment of a radiator assembly of the utility model;

[0036] Figure 7 This is a schematic structural diagram of an embodiment of the utility model converter;

[0037] Figure 8 for Figure 7 Cross-sectional view at AA in the middle.

[0038] Description of Figure Numbers:

[0039] Label name Label name 1000 Converter 43 Connecting channel 100 Radiator assembly 50 Air duct baffle 1 U-shaped heat sink 51 Cooling duct 10 Plane 52 Air Inlet 11 Mounting surface a Length direction 111 Mounting holes 60 Water spout 12 back 70 Support accessories 13 The first heat dissipation channel 71 slide 20 Bending part 72 Insulation support board 20a Mounting cavity 200 case 21 Second heat dissipation channel 200a Internal cavity 22 Heat sink 200b Return air duct 30 First side guard 300 The first heating device 31 Connecting channel 400 The second heating device 40 Second side guard 500 The third heating device 41 Liquid inlet channel 600 Fan 42 Liquid outlet channel

[0040] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0043] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0044] The utility model provides a radiator assembly 100, aiming to provide a radiator assembly 100 with high heat dissipation efficiency.

[0045] Combined with reference Figures 1 to 8 In one embodiment of the radiator assembly 100 of the utility model, the radiator assembly 100 includes a U-shaped radiator plate 1 and a duct baffle 50; the U-shaped radiator plate 1 includes a plane portion 10 and two bent portions 20, the plane portion 10 is provided with a mounting surface 11 and a back surface 12 arranged opposite to each other, a first heat dissipation channel 13 is provided in the plane portion 10, the mounting surface 11 is used to install a first heating device 300, the two bent portions 20 are bent toward the back surface 12 of the plane portion 10, and are enclosed with the plane portion 10 to form a The installation cavity 20a is provided with a second heat dissipation channel 21 in the bending portion 20, and the installation cavity 20a is used to install the second heating device 400; the air duct baffle 50 is covered on the planar portion 10 and / or the bending portion 20, and is enclosed with the planar portion 10 and / or the bending portion 20 to form a heat dissipation air duct 51, and the heat dissipation air duct 51 is provided with an air outlet, and the air duct baffle 50 is provided with an air inlet 52 connected to the heat dissipation air duct 51, and the air outlet and the air inlet 52 are both used to communicate with the internal cavity 200a of the inverter 1000.

[0046] It can be understood that the radiator assembly 100 proposed by the present invention includes a U-shaped heat sink 1 and an air duct baffle 50. The U-shaped heat sink 1 includes a plane portion 10 and two bent portions 20, wherein the mounting surface 11 of the plane portion 10 can be used to mount the first heating device 300 to dissipate heat for the first heating device 300, and the two bent portions 20 and the plane portion 10 can enclose a mounting cavity 20a for mounting the second heating device 400 to dissipate heat for the second heating device 400. At the same time, the air duct baffle 50 and the plane portion 1 0 and / or the bending portion 20 to form a heat dissipation duct 51, and the duct baffle 50 is provided with an air inlet 52, and the airflow generated by the fan 600 can be used to take away the heat of the internal cavity 200a of the converter 1000, and enter the heat dissipation duct 51 from the air inlet 52, and then blow back to the internal cavity 200a of the converter 1000 from the air outlet of the heat dissipation duct 51, and the cycle is repeated. In this process, the airflow can be cooled by the first heat dissipation channel 13 and the second heat dissipation channel 21 to reduce the heat in the internal cavity 200a.

[0047] Therefore, the heat sink assembly 100 proposed in this solution cooperates with the air duct design of the inverter 1000. While dissipating heat to the first heat-generating device 300 (including but not limited to power devices), it can also dissipate heat to the second heat-generating device 400 (including but not limited to inductors and reactors). At the same time, it can also dissipate heat to the third heat-generating device 500 (including but not limited to boards and contactors) in the internal cavity 200a, combining liquid cooling and air cooling to achieve heat dissipation, thereby effectively improving the heat dissipation efficiency.

[0048] In addition, a cooling method combining liquid cooling and air cooling is adopted to achieve simultaneous heat dissipation of at least three lossy components, which can reuse the functions of the radiator assembly 100, greatly reduce the volume of the whole machine, and improve the power density of the whole machine; at the same time, it can also reduce the number of fans 600 used and reduce the noise caused by multiple fans 600.

[0049] In some embodiments, in order to facilitate the installation of the first heating device 300 on the installation surface 11, a mounting hole 111 may be provided on the installation surface 11, so that the first heating device 300 may be locked on the installation surface 11 by using a screw, a pin or the like in cooperation with the mounting hole 111, so as to ensure the installation reliability of the first heating device 300. Of course, in other embodiments, the first heating device 300 may also be fixedly installed on the installation surface 11 by means of snap fastening, bonding or the like.

[0050] In some embodiments, when installing the second heating device 400, the second heating device 400 can be placed in the installation cavity 20a first, and then the thermal conductive glue can be poured into the installation cavity 20a to fix the second heating device 400 in the installation cavity 20a to ensure the installation reliability of the second heating device 400. Of course, in other embodiments, the second heating device 400 can also be fixed in the installation cavity 20a by means of screws, buckles, etc.

[0051] In some embodiments, the planar portion 10 and the bent portion 20 may be an integrally formed U-shaped structure, which not only ensures the connection strength between the planar portion 10 and the bent portion 20 but also simplifies the manufacturing process.

[0052] In some embodiments, the planar portion 10 and the bent portion 20 may also be independent components, which are then connected together to form a U-shaped heat sink through welding, splicing, or other connection methods.

[0053] In actual application, the first heat dissipation channel 13 and the second heat dissipation channel 21 may be interconnected or independent of each other.

[0054] In actual application, the duct baffle 50 can be only covered on the plane portion 10 to form a heat dissipation duct 51 together with the plane portion 10; or, the duct baffle 50 can be only covered on the bending portion 20 to form a heat dissipation duct 51 together with the bending portion 20; or, the duct baffle 50 can be also covered on the plane portion 10 and the bending portion 20 at the same time to form a heat dissipation duct 51 together with the plane portion 10 and the bending portion 20.

[0055] Specifically, after the airflow in the shell 200 of the inverter 1000 enters the heat dissipation duct 51 from the air inlet 52, the first heat dissipation duct 13 and / or the second heat dissipation duct 21 can take away the heat of the airflow to reduce the temperature of the airflow and turn it into cold air. The cooled airflow then flows back to the internal cavity 200a of the shell 200 through the air outlet of the heat dissipation duct 51, thereby completing the heat dissipation cycle of the internal cavity 200a of the entire machine.

[0056] Optionally, see Figure 1 , Figure 2 In one embodiment of the heat sink assembly 100 of the present invention, the first heat dissipation channel 13 extends along the length direction of the planar portion 10; such a configuration can extend the path of the first heat dissipation channel 13 to increase the heat of the airflow taken away by the first heat dissipation channel 13, which can better reduce the temperature of the airflow.

[0057] Optionally, see Figure 1 , Figure 2In one embodiment of the heat sink assembly 100 of the present invention, the second heat dissipation channel 21 extends along the length direction of the bending portion 20; such a configuration can extend the path of the second heat dissipation channel 21 to increase the heat of the airflow taken away by the second heat dissipation channel 21, which can better reduce the temperature of the airflow.

[0058] Optionally, see Figure 1 , Figure 2 In one embodiment of the radiator assembly 100 of the present invention, the duct baffle 50 has a length direction a, the air inlet 52 is arranged in the middle of the duct baffle 50 in the length direction a, and the air outlet of the heat dissipation duct 51 is arranged at the end of the duct baffle 50.

[0059] With such arrangement, the airflow blown out by the fan 600 absorbs the heat of the internal cavity 200a of the shell 200 and becomes hot air. The hot air can enter the heat dissipation duct 51 from the air inlet 52 located in the middle of the duct baffle 50. In the process of flowing through the heat dissipation duct 51, the first heat dissipation channel 13 and / or the second heat dissipation channel 21 will absorb the heat of the airflow to become cold air, and finally flow back from the air outlet of the heat dissipation duct 51 to the internal cavity 200a of the shell 200, thereby completing the heat dissipation cycle of the internal cavity 200a of the entire machine.

[0060] Optionally, see Figure 1 , Figure 2 In one embodiment of the heat sink assembly 100 of the present invention, the heat dissipation air duct 51 is provided with two air outlets arranged opposite to each other, and each air outlet is arranged at one end of the air duct baffle 50 .

[0061] With such arrangement, after hot air enters the heat dissipation duct 51 from the air inlet 52 located in the middle of the duct baffle 50 , it can flow to the air outlets at both ends of the heat dissipation duct 51 to improve the flow efficiency of the airflow, thereby improving the heat exchange efficiency.

[0062] Optionally, see Figure 1 , Figure 2 In one embodiment of the radiator assembly 100 of the present invention, two air duct baffles 50 are provided, and the two air duct baffles 50 are respectively covered on both sides of the U-shaped heat dissipation plate 1 to enclose the U-shaped heat dissipation plate 1 to form two heat dissipation air ducts 51.

[0063] With such an arrangement, two heat dissipation ducts 51 can be formed by enclosing the two duct baffles 50 and the U-shaped heat dissipation plate 1, so that the airflow after absorbing heat can enter the two heat dissipation ducts 51 for heat dissipation, which can further improve the heat exchange efficiency.

[0064] Optionally, see Figure 3 , Figure 4In one embodiment of the heat sink assembly 100 of the present invention, a plurality of heat dissipation fins 22 are disposed on a side of each bending portion 20 away from the mounting cavity 20 a , and the heat dissipation fins 22 are located in the heat dissipation duct 51 .

[0065] In this way, the heat dissipation fins 22 can increase the heat dissipation area of ​​the airflow passing through the heat dissipation air duct 51, so as to improve the heat dissipation effect of the airflow passing through the heat dissipation air duct 51, thereby effectively improving the heat dissipation effect of the internal cavity 200a of the shell 200. In addition, by directly arranging the heat dissipation fins 22 on the bent portion 20, the bent portion 20 includes the second heat dissipation flow channel 21 and the heat dissipation fins 22 at the same time, avoiding the high thermal resistance defect of the flow channel and the fins being separately welded and waiting for material, and improving the heat conduction efficiency.

[0066] Optionally, see Figures 1 to 3 In one embodiment of the radiator assembly 100 of the utility model, the radiator assembly 100 further includes a first side baffle 30 and a second side baffle 40 which are arranged opposite to each other. The first side baffle 30 and the second side baffle 40 are arranged on two opposite sides of the U-shaped heat dissipation plate 1. The first side baffle 30, the second side baffle 40 and the U-shaped heat dissipation plate 1 enclose a mounting cavity 20a.

[0067] In this way, by respectively covering the first side baffle 30 and the second side baffle 40 on the opposite sides of the U-shaped heat sink 1, the first side baffle 30, the second side baffle 40 and the U-shaped heat sink 1 enclose an installation cavity 20a to form a cavity with a single-sided opening, so that the second heating device 400 can be installed in the relatively closed installation cavity 20a to increase the heat dissipation area of ​​the second heating device 400, thereby improving the heat dissipation effect of the second heating device 400.

[0068] In some embodiments, the first side baffle 30 and the second side baffle 40 can be fixed on the opposite sides of the U-shaped heat sink 1 by welding, thus ensuring the reliability of the connection. Of course, in other embodiments, the first side baffle 30 and the second side baffle 40 can also be fixed on the opposite sides of the U-shaped heat sink 1 by screws, bonding, etc.

[0069] Optionally, see Figure 5 In one embodiment of the radiator assembly 100 of the present invention, the first side baffle 30 is provided with a connecting channel 31 , and the connecting channel 31 connects the first heat dissipation channel 13 and the second heat dissipation channel 21 .

[0070] With such a configuration, the first heat dissipation channel 13 can be connected to the second heat dissipation channel 21 through the connecting channel 31. After the coolant flows through the first heat dissipation channel 13 to take away the heat of the first heating device 300, it can also flow to the second heat dissipation channel 21 through the connecting channel 31 to take away the heat of the second heating device 400. At the same time, it can also take away the heat of the airflow flowing through the heat dissipation air duct 51. In this way, it is only necessary to introduce the coolant into the first heat dissipation channel 13, which can simplify the assembly cost.

[0071] Alternatively, the coolant can flow through the second heat dissipation channel 21 to take away the heat of the second heating device 400, and at the same time take away the heat of the airflow flowing through the heat dissipation duct 51, and can also flow to the first heat dissipation channel 13 through the connecting channel 31 to take away the heat of the first heating device 300. In this way, it is only necessary to introduce coolant into the second heat dissipation channel 21, which can also simplify the assembly cost.

[0072] Optionally, see Figure 6 In one embodiment of the radiator assembly 100 of the present invention, the second side baffle 40 is provided with a liquid inlet channel 41 and a liquid outlet channel 42 , the liquid inlet channel 41 is connected to the second heat dissipation channel 21 , and the liquid outlet channel 42 is connected to the first heat dissipation channel 13 .

[0073] With such arrangement, the coolant enters from the liquid inlet channel 41 and flows sequentially through the second heat dissipation channel 21, the connecting channel 31, the first heat dissipation channel 13, and finally flows out from the liquid outlet channel 42. Under the flow of the coolant, the heat generated by the first heating device 300 and the second heating device 400 during operation can be fully taken away, and the heat of the airflow flowing through the heat dissipation duct 51 can also be taken away.

[0074] In some embodiments, two liquid inlet channels 41 may be provided, and each liquid inlet channel 41 may be connected to a second heat dissipation channel 21 of a bent portion 20 to introduce coolant into the corresponding second heat dissipation channel 21. Optionally, the two liquid inlet channels 41 may be connected via a connecting channel 43, so that coolant only needs to be introduced into one of the liquid inlet channels 41, which can simplify assembly costs.

[0075] In some embodiments, a water nozzle 60 may be provided at the inlet of the liquid inlet channel 41 and / or the outlet of the liquid outlet channel 42, so that the coolant can be smoothly introduced through the water nozzle 60 provided at the inlet of the liquid inlet channel 41, and the coolant after absorbing heat can be smoothly discharged outward through the water nozzle 60 provided at the liquid outlet channel.

[0076] In some embodiments, there may be a plurality of first heat dissipation channels 13, second heat dissipation channels 21 and connecting channels 31, each first heat dissipation channel 13 may be connected to a second heat dissipation channel 21 via a connecting channel 31, and the coolant may be diverted to a plurality of second heat dissipation channels 21 via a liquid inlet channel, and the coolant of a plurality of first heat dissipation channels 13 may converge into a liquid outlet channel.

[0077] Optionally, see Figure 1 , Figure 2 In one embodiment of the radiator assembly 100 of the present invention, the radiator assembly 100 further includes a supporting accessory 70 , and the U-shaped heat sink 1 is carried on the supporting accessory 70 .

[0078] In this way, by using the supporting attachment 70 to support the U-shaped heat sink 1 , the installation reliability of the U-shaped heat sink 1 can be ensured.

[0079] Optionally, see Figure 1 , Figure 2 In one embodiment of the heat sink assembly 100 of the present invention, the supporting attachment 70 includes a slideway 71 , and the U-shaped heat sink 1 is slidably disposed on the slideway 71 .

[0080] With such arrangement, during the installation process, the U-shaped heat sink 1 can smoothly slide into the internal cavity 200a of the shell 200 along the extension direction of the slide 71 to facilitate the installation of the U-shaped heat sink 1. At the same time, the U-shaped heat sink 1 can be fixedly installed on the slide 71 using structural parts such as screws and bolts to effectively support the U-shaped heat sink 1 through the slide 71.

[0081] The U-shaped heat sink 1 can slide along the extending direction of the slideway 71 , and the installation position of the U-shaped heat sink 1 can be changed according to space requirements to improve the use flexibility of the U-shaped heat sink 1 .

[0082] In actual application, one or at least two slideways 71 may be provided, and the slideways 71 may be provided based on the ability to effectively support the U-shaped heat sink 1 .

[0083] Optionally, see Figure 2 In one embodiment of the heat sink assembly 100 of the present invention, the supporting accessory 70 also includes an insulating supporting plate 72, which is connected to the side of the bending portion 20 away from the planar portion 10 and is arranged opposite to the planar portion 10. The insulating supporting plate 72 is used to support and fix the second heating device 400.

[0084] In this way, the insulating support plate 72 can effectively support the second heating device 400 installed in the installation cavity 20a, so as to prevent the second heating device 400 from falling out of the installation cavity 20a during use or transportation, thereby affecting the use effect. At the same time, the insulating support plate 72 will not conduct electricity, so as not to affect the use performance of the second heating device 400.

[0085] Combined with reference Figure 7 , Figure 8 The utility model also proposes a converter 1000, which includes a housing 200, a first heating device 300, a second heating device 400, a fan 600 and the radiator assembly 100 as described above. The specific structure of the radiator assembly 100 refers to the above embodiment. Since the converter 1000 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0086] Among them, an internal cavity 200a is formed in the shell 200; the radiator assembly 100 is arranged in the internal cavity 200a; the first heating device 300 is arranged on the mounting surface 11 of the radiator assembly 100; the second heating device 400 is arranged in the mounting cavity 20a of the radiator assembly 100; the fan 600 is arranged in the internal cavity 200a, and the airflow generated by the fan 600 passes through the third heating device 500 and enters the heat dissipation duct 51 from the air inlet 52 for heat exchange, and flows back to the internal cavity 200a from the air outlet of the heat dissipation duct 51.

[0087] It can be understood that the heat sink assembly 100 is designed in conjunction with the fan 600. While dissipating heat for the first heat-generating device 300 (including but not limited to power devices), it can also dissipate heat for the second heat-generating device 400 (including but not limited to inductors and reactors), combining liquid cooling and air cooling to achieve heat dissipation, thereby effectively improving the heat dissipation efficiency.

[0088] In addition, a cooling method combining liquid cooling and air cooling is adopted to achieve simultaneous heat dissipation of at least two lossy components, which can reuse the functions of the radiator assembly 100, greatly reduce the volume of the whole machine, and improve the power density of the whole machine; at the same time, it can also reduce the number of fans 600 used and reduce the noise caused by multiple fans 600.

[0089] In some embodiments, two fans 600 may be provided, and the two fans 600 are respectively provided corresponding to the two air outlets of the heat dissipation duct 51 to improve the heat dissipation circulation efficiency of the internal cavity 200a of the whole machine.

[0090] Optionally, the two fans 600 may be staggered so that the cold air blown out by the two fans 600 can be blown to different positions of the third heating device 500, or blown to different heating devices, so as to fully take away the heat generated by the third heating device 500 during operation.

[0091] Optionally, see Figure 8 In one embodiment of the converter 1000 of the present invention, the housing 200 is provided with a return air duct 200 b, and the air outlet of the heat dissipation duct 51 is connected to the internal cavity 200 a through the return air duct 200 b.

[0092] With such arrangement, under the action of the fan 600, the airflow in the heat dissipation duct 51 can be drawn back into the internal cavity 200a through the return duct 200b, ensuring that the air inlet side of the fan 600 is cold air, thereby extending the service life of the fan 600.

[0093] Optionally, see Figure 7 , Figure 8 In one embodiment of the converter 1000 of the present invention, the converter 1000 further includes a third heating device 500, and the third heating device 500 is disposed in the internal cavity 200a.

[0094] In this way, the heat sink assembly 100 cooperates with the design of the fan 600, and can also provide heat dissipation to the third heating device 500 (including but not limited to the board and contactor) in the internal cavity 200a by combining liquid cooling and air cooling, thereby effectively improving the heat dissipation efficiency. The cooling method combining liquid cooling and air cooling realizes the simultaneous heat dissipation of at least three lossy devices, which can reuse the functions of the heat sink assembly 100, greatly reducing the volume of the whole machine and improving the power density of the whole machine.

[0095] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A radiator assembly, characterized in that: include: U-shaped heat sink, the U-shaped heat sink comprising a plane portion and two bent portions, the plane portion being provided with a mounting surface and a back surface arranged opposite to each other, the plane portion being provided with a first heat dissipation channel, the mounting surface being used to mount a first heating device, the two bent portions being bent toward the back surface of the plane portion and enclosing the plane portion to form a mounting cavity, the bent portion being provided with a second heat dissipation channel, the mounting cavity being used to mount a second heating device; An air duct baffle, wherein the air duct baffle cover is arranged on the planar portion and / or the bent portion, and is enclosed with the planar portion and / or the bent portion to form a heat dissipation air duct, the heat dissipation air duct is provided with an air outlet, and the air duct baffle is provided with an air inlet connected to the heat dissipation air duct, and the air outlet and the air inlet are both used to communicate with the internal cavity of the inverter.

2. The heat sink assembly according to claim 1, wherein: The first heat dissipation channel extends along the length direction of the planar portion; And / or, the second heat dissipation channel extends along the length direction of the bending portion.

3. The heat sink assembly according to claim 1, wherein: The air duct baffle has a length direction, the air inlet is arranged at the middle of the air duct baffle in the length direction, and the air outlet of the heat dissipation air duct is arranged at the end of the air duct baffle.

4. The radiator assembly according to any one of claims 1 to 3, characterized in that: There are two air duct baffles, and the two air duct baffles are respectively covered on both sides of the U-shaped heat dissipation plate to enclose the U-shaped heat dissipation plate to form two heat dissipation air ducts.

5. The radiator assembly according to any one of claims 1 to 3, characterized in that: A plurality of heat dissipation fins are arranged on a side of the bent portion away from the mounting cavity, and the heat dissipation fins are located in the heat dissipation air duct.

6. The radiator assembly according to any one of claims 1 to 3, characterized in that: The radiator assembly also includes a first side baffle and a second side baffle that are arranged opposite to each other. The first side baffle and the second side baffle are arranged on two opposite sides of the U-shaped heat dissipation plate. The first side baffle, the second side baffle and the U-shaped heat dissipation plate enclose the installation cavity.

7. The heat sink assembly according to claim 6, wherein: The first side baffle is provided with a connecting flow channel, and the connecting flow channel connects the first heat dissipation flow channel and the second heat dissipation flow channel; And / or, the second side baffle is provided with a liquid inlet channel and a liquid outlet channel, the liquid inlet channel is connected to the second heat dissipation channel, and the liquid outlet channel is connected to the first heat dissipation channel.

8. The radiator assembly according to any one of claims 1 to 3, characterized in that: The radiator assembly further comprises a supporting accessory, and the U-shaped radiating plate is carried by the supporting accessory.

9. The heat sink assembly according to claim 8, wherein: The supporting attachment includes a slideway, and the U-shaped heat sink is slidably arranged on the slideway; And / or, the supporting accessory further includes an insulating support plate, the insulating support plate is connected to a side of the bending portion away from the planar portion and is arranged opposite to the planar portion, and the insulating support plate is used to support and fix the second heating device.

10. A converter, characterized in that: include: a housing having an internal cavity formed therein; The radiator assembly according to any one of claims 1 to 9, wherein the radiator assembly is disposed in the internal cavity; a first heating device, the first heating device being arranged on a mounting surface of the heat sink assembly; a second heating device, the second heating device being arranged in the mounting cavity of the heat sink assembly; A fan is arranged in the internal cavity, and the airflow generated by the fan passes through the third heating device and enters the heat dissipation duct from the air inlet for heat exchange, and flows back to the internal cavity from the air outlet of the heat dissipation duct.

11. The converter according to claim 10, characterized in that The shell is provided with a return air duct, and the air outlet of the heat dissipation air duct is connected to the internal cavity through the return air duct.

12. The converter according to claim 10, characterized in that The converter further comprises a third heating device, and the third heating device is arranged in the internal cavity.

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