CN218417083U

CN218417083U - Heat dissipation module and power converter

Info

Publication number: CN218417083U
Application number: CN202222130544.2U
Authority: CN
Inventors: 方伟; 周云龙
Original assignee: Suzhou Huichuan Control Technology Co Ltd
Current assignee: Suzhou Huichuan Control Technology Co Ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2023-01-31
Anticipated expiration: 2032-08-12

Abstract

The utility model relates to an energy storage technology field specifically discloses a heat dissipation module and power converter. The heat dissipation module comprises a box body with a containing cavity, a plurality of magnetic core devices arranged in the containing cavity and a plurality of power modules arranged outside the containing cavity. The cavity wall of the containing cavity is internally provided with a flow channel spaced with the containing cavity, and the outer wall of the box body is provided with a liquid inlet and a liquid outlet which are communicated with the flow channel so as to simultaneously cool the magnetic core devices and the power modules. The box is with the integrated setting of a plurality of reactors and the cold piece of stoste, reduces the cost that reactor and the cold piece of stoste opened the die respectively, is convenient for reduce the volume of reactor, improves power density, replaces the layering setting of forced air cooling mode and the device distribution of the cold mode of stoste to occupy the heat dissipation mode of volume, promotes the radiating efficiency, and can effectively reduce radiating module's whole volume, effectively solves the bulky and with high costs technical problem of heat dissipation module.

Description

Heat dissipation module and power converter

Technical Field

The utility model relates to an energy storage technology field, in particular to heat dissipation module and power converter.

Background

With the development of the photovoltaic industry, the system capacity is gradually increased according to the user requirements, but the requirements on photovoltaic medium and small power energy storage, inverter power integration density and noise are higher and higher, and the heat dissipation is not favorable for greatly influencing the service life of a device, so that the system heat dissipation needs strict requirements.

At present, common medium and small power inverters and energy storage PCS adopt air cooling radiators, the machine boxes can only be distributed in a double-layer mode, and heat circulates outwards through air channels, so that the machine boxes are large in size, high in noise and low in power density; the existing liquid cooling system comprises a plurality of reactors, a plurality of power modules, a radiator and a liquid cooling piece, wherein the reactors, the power modules and the radiator are respectively attached to the upper surface and the lower surface of a water cooling plate to dissipate heat, the problem that the size of the heat dissipation system is large is solved, the reactors and the water cooling plate are required to be respectively opened, and the cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a heat dissipation module aims at solving the big and with high costs technical problem of current heat dissipation module volume.

In order to achieve the above object, the utility model provides a heat dissipation module, include:

the box body is provided with a containing cavity, a flow channel is further arranged inside the cavity wall of the containing cavity and is spaced from the containing cavity, and a liquid inlet and a liquid outlet which are communicated with the flow channel are further arranged on the outer wall of the box body;

the magnetic core devices are arranged in the cavity at intervals, the box body is also provided with a plurality of avoiding holes communicated with the cavity, and the avoiding holes are used for connecting the magnetic core devices with external devices; and

and the power modules are arranged on the outer wall of the box body.

Optionally, the inner wall of the cavity is provided with a plurality of fixing structures, and one of the fixing structures is connected with one of the magnetic core devices.

Optionally, the box includes:

the liquid cooling piece is concavely arranged to form a containing groove, a plurality of first channels are arranged inside the liquid cooling piece, the first channels extend along the length direction of the containing groove, and the power module is arranged on the outer wall of the containing groove;

the two end plates are respectively arranged at two ends of the liquid cooling piece along the length direction of the accommodating groove, the two end plates are respectively provided with the liquid inlet and the liquid outlet, each end plate is also internally provided with a liquid passing channel communicated with the liquid inlet or the liquid outlet, and the liquid passing channels are communicated with the plurality of first channels to form the flow channel; and

the cover plate covers the notch of the containing groove, and the periphery of the cover plate is connected with the liquid cooling piece and the two end plates respectively so as to enclose to form the containing cavity.

Optionally, the liquid cooling member includes:

a base plate; and

the two side plates are oppositely arranged on the bottom plate at intervals, and form the accommodating groove by enclosing with the bottom plate, and the periphery of the cover plate is detachably connected with the bottom plate and the two side plates;

at least one of the bottom plate and the two side plates is provided with a plurality of first channels.

Optionally, the bottom plate and the two side plates are provided with a plurality of first channels.

Optionally, a plurality of guide plates arranged at intervals are arranged in the bottom plate and/or the side plate, and the plurality of guide plates extend along the length direction of the box body to form a plurality of first channels.

Optionally, a plurality of the first channels are not in communication with each other.

Optionally, one the end plate is provided with a liquid passing cavity communicated with the liquid inlet or the liquid outlet, and one side of the end plate facing the liquid cooling member is provided with a plurality of liquid passing holes which are respectively communicated with the liquid passing cavity to form the liquid passing channel, and the liquid passing channel is communicated with the first channel through the liquid passing holes.

Optionally, the liquid cooling member and/or the end plate are of an integrally formed structure.

The utility model also provides a power converter, power converter includes:

the shell is provided with a cavity and two liquid through pipes communicated with the cavity; and

according to the heat dissipation module, the two liquid through pipes are respectively communicated with the liquid inlet and the liquid outlet of the heat dissipation module.

The utility model discloses technical scheme effectively solves the bulky and with high costs technical problem of heat dissipation module through adopting the shell of reactor and the cold integrated setting of former liquid and forming the box that has the runner. The heat dissipation module comprises a box body with a containing cavity, a plurality of magnetic core devices arranged in the containing cavity and a plurality of power modules arranged outside the containing cavity. The cavity wall of the containing cavity is internally provided with a flow channel spaced with the containing cavity, and the outer wall of the box body is provided with a liquid inlet and a liquid outlet which are communicated with the flow channel so as to simultaneously cool the magnetic core devices and the power modules. The setting of box has reduced the cost of a plurality of reactors and the cold piece of stoste respectively die sinking, with the integrated setting of a plurality of reactors and the cold piece of stoste, is convenient for reduce the volume of reactor, improves power density, and the device that replaces the layering setting of forced air cooling mode and the cold mode of stoste distributes and accounts for the radiating mode of volume, promotes the radiating efficiency, and reduce cost, and can effectively reduce radiating module's whole volume.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic view of an external structure of a whole heat dissipation module according to an embodiment of the present invention;

fig. 2 is a schematic view of an internal structure of a case according to another embodiment of the heat dissipation module of the present invention;

fig. 3 is a schematic view of another perspective structure of another embodiment of the heat dissipation module of the present invention;

fig. 4 is a schematic cross-sectional view of a case according to another embodiment of the heat dissipation module of the present invention.

The reference numbers illustrate:

reference numerals

Name (R)

Reference numerals

Name (R)

Reference numerals

Name(s)

10

Box body

30

Magnetic core device

50

Power module

10A

Containing chamber

31

Wire connection part

11

Liquid cooling piece

10B

Liquid inlet

11A

Containing groove

111

Base plate

10C

Liquid outlet

11B

Avoiding hole

112

Side plate

100

Heat radiation module

12

End plate

13

Cover plate

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the expression "and/or" as used throughout is meant to encompass three juxtaposed aspects, exemplified by "A and/or B", including either the A aspect, or the B aspect, or aspects in which both A and B are satisfied. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a heat dissipation module 100 to the structure that includes a plurality of reactors dispels the heat, and this heat dissipation module 100 is through adopting the box 10 that has the runner with the integrated setting of the shell of reactor and former liquid cold plate, and direct magnetic core package subassembly holding with former a plurality of reactors is inside box 10 that has the runner, reduces the shell of reactor and the independent die sinking of former liquid cold plate, reduce cost. Wherein, the magnetic core package subassembly of each reactor is following magnetic core device 30 promptly, uses the liquid cooling heat dissipation to magnetic core device 30 after the integration and a plurality of power module 50, promotes the radiating efficiency, and need not increase the radiating heat radiation structure of extra radiator collocation fan, is showing to the volume effect that reduces heat radiation module, can control the noise because of heat radiation module produces simultaneously, is fit for generally using widely.

Referring to fig. 1 to 4, fig. 1 is a schematic view of an external structure of a heat dissipation module 100 according to an embodiment of the present invention; fig. 2 is a schematic view of an internal structure of a case 10 according to another embodiment of the heat dissipation module 100 of the present invention;

fig. 3 is a schematic view illustrating another perspective structure of another embodiment of the heat dissipation module 100 of the present invention; fig. 4 is a schematic cross-sectional view of a case 10 according to another embodiment of the heat dissipation module 100 of the present invention.

In the embodiment of the present invention, the heat dissipation module 100 includes a case 10, a plurality of magnetic core devices 30, and a plurality of power modules 50; as shown in fig. 1 to 4, the box body 10 has a cavity 10A, a flow channel is further provided inside a cavity wall of the cavity 10A, the flow channel is spaced from the cavity 10A, and a liquid inlet 10B and a liquid outlet 10C communicating the flow channel are further provided on an outer wall of the box body 10; in holding chamber 10A was located at the interval to a plurality of magnetic core devices 30, box 10 still was equipped with a plurality of holes of dodging 11B that hold chamber 10A of intercommunication, and a plurality of holes of dodging 11B are used for a plurality of magnetic core devices 30 to connect external device, and the outer wall of box 10 is located to a plurality of power module 50.

In this embodiment, the utility model discloses technical scheme effectively solves the bulky and with high costs technical problem of heat dissipation module 100 through adopting the shell of reactor and the integrated setting of former liquid cold plate and forming the box 10 that has the runner. The heat dissipation module 100 includes a case 10 having a cavity 10A, a plurality of magnetic core devices 30 disposed in the cavity 10A, and a plurality of power modules 50 disposed outside the cavity 10A. A flow channel spaced from the cavity 10A is further disposed inside the cavity wall of the cavity 10A, and a liquid inlet 10B and a liquid outlet 10C communicating the flow channel are disposed on the outer wall of the box 10, so as to cool the plurality of magnetic core devices 30 and the plurality of power modules 50 simultaneously. The box 10 reduces the cost of respectively opening the die for the plurality of reactors and the stock solution cooling plates, the plurality of reactors and the stock solution cooling plates are integrally arranged, the size of the reactors is convenient to reduce, the power density is improved, the layered arrangement of the air cooling mode and the heat dissipation mode of the stock solution cooling mode are replaced, the heat dissipation mode occupies the volume, the heat dissipation efficiency is improved, the cost is reduced, and the whole volume of the heat dissipation module can be effectively reduced.

Further, a magnetic core device 30 has a plurality of wiring portions 31, when the magnetic core device 30 is disposed in the accommodating cavity 10A, the plurality of wiring portions 31 pass through the avoiding hole 11B and one end of each wiring portion passes through the outer wall surface of the box body 10, the plurality of wiring portions 31 are used for connecting the plurality of magnetic core devices 30 to an external device, and waterproof sealing treatment is performed on the periphery of the wiring portions 31 passing through the avoiding hole 11B.

It is understood that a plurality of power modules 50 may be disposed on a plurality of outer walls of the box 10, or may be disposed on one outer wall in a centralized manner, and may be flexibly disposed according to actual requirements.

It should be noted that the heat dissipation module 100 of the present invention is suitable for the heat dissipation module 100 with a high requirement on the volume or the power converter with a high requirement on the volume. Although the space and volume requirements of some larger devices are not very high, the heat dissipation efficiency requirements of large devices are also high.

Further, the inner wall of the cavity 10A is provided with a plurality of fixing structures, and one fixing structure is connected with one magnetic core device 30.

In this embodiment, the cavity 10A is used for accommodating the magnetic core devices 30 of the original multiple reactors, for the sake of stability, a plurality of fixing structures for fixedly mounting the magnetic core devices 30 are arranged on the inner wall of the cavity 10A in the case 10, each magnetic core device 30 is assembled with the case 10 by using at least two fixing structures, and the stability of assembling the magnetic core devices 30 and the case 10 is improved.

It can be understood that fixed knot constructs can set up to the buckle fixed or the screw thread is joined in marriage the nut and is fixed, fixes the back to magnetic core device 30, can handle holding the inside encapsulating of chamber 10A, passes the periphery of dodging hole 11B at wiring portion 31 and does waterproof sealing and handle and also can avoid the encapsulating to spill over. The glue filling's colloid still has heat conductivility to carry out the secondary to a plurality of magnetic core devices 30 and promote heat conduction efficiency when fixed, with promoting the radiating efficiency, make the heat dissipation of heat dissipation module 100 faster, the volume of the former reactor that corresponds just can do more and less, promptly the utility model provides a magnetic core device 30's volume also can do more and less, promotes space utilization.

Optionally, the box 10 includes a liquid cooling member 11, two end plates 12 and a cover plate 13, the liquid cooling member 11 is recessed to form a containing groove 11A, a plurality of first channels are arranged inside the liquid cooling member 11, the plurality of first channels extend along the length direction of the containing groove 11A, and the power module 50 is arranged on the outer wall of the containing groove 11A; the two end plates 12 are respectively arranged at two ends of the liquid cooling piece 11 along the length direction of the containing groove 11A, the two end plates 12 are respectively provided with a liquid inlet 10B and a liquid outlet 10C, each end plate 12 is also internally provided with a liquid passing channel communicated with the liquid inlet 10B or the liquid outlet 10C, and the liquid passing channels are communicated with a plurality of first channels to form a flow channel; the cover plate 13 covers the opening of the containing groove 11A, and the periphery of the cover plate 13 is respectively connected with the liquid cooling element 11 and the two end plates 12 to enclose the containing cavity 10A.

In this embodiment, inlet 10B and liquid outlet 10C are located the both ends that box 10 extended the setting along length direction respectively, and one side that two end plates 12 deviate from each other is located respectively to inlet 10B and liquid outlet 10C promptly, wherein, be formed with the liquid passageway of crossing that holds the coolant liquid in end plate 12 is inside, the lower temperature coolant liquid that gets into from inlet 10B gets into rather than the first passageway that communicates after the liquid passageway goes on, and transmit to the liquid passageway of crossing of opposite side end plate 12 along first passageway in, later discharge through liquid outlet 10C. Wherein, a plurality of first passageways set up independently each other to ensure the radiating reliability of liquid cooling, in time one of them first passageway appears unusually, also can not influence the heat dissipation of whole box 10, promote heat dissipation reliability and stability.

Optionally, the liquid cooling member 11 includes a bottom plate 111 and two side plates 112, the two side plates 112 are disposed opposite to and spaced apart from the bottom plate 111, and enclose with the bottom plate 111 to form a containing groove 11A, and the periphery of the cover plate 13 is detachably connected to the bottom plate 111 and the two side plates 112; at least one of the bottom plate 111 and the two side plates 112 is provided with a plurality of first passages.

In this embodiment, bottom plate 111 and two curb plates 112 enclose to close and form and hold groove 11A, two end plates 12 are located the both sides tip of holding groove 11A, apron 13 detachably lid is located the notch of holding groove 11A, first passageway can set up on bottom plate 111, or can set up on bottom plate 111 and at least curb plate 112, also can set up respectively on bottom plate 111 and two curb plates 112, make the casing that has six and can carry out the heat dissipation of multiaspect liquid cooling, increase heat dissipation contact area, promote the radiating efficiency.

Optionally, the bottom plate 111 and the two side plates 112 are each provided with a plurality of first channels.

In this embodiment, carry out integration with traditional three differential mode reactor, integrated reactor shell die sinking is handled promptly for box 10, and the bottom plate 111 and the inside water route design that all can carry out of curb plate 112 of box 10 to form trilateral water route design, increase liquid cooling heat radiating area, integration reactor both ends or with end welding inlet outlet, thereby reach the effect of taking the integration reactor heat out, laminate power module 50 on the surface of integration reactor in step, dispel the heat in step.

Further, each waterway design includes a first channel, wherein the first channel may be a through-flow cavity or may be divided into a plurality of through-flow cavities arranged in parallel and at intervals, and the first channel is only defined by the waterway design located inside the liquid cooling member 11, and the shape and the number of the waterway design are not defined.

Optionally, a plurality of baffles are disposed in the bottom plate 111 and/or the side plate 112 at intervals, and the plurality of baffles extend along the length direction of the box 10 to form a plurality of first channels.

In this embodiment, in the design of the water path inside the bottom plate 111 and/or the at least one side plate 112, a plurality of flow guide plates are disposed at intervals, and a flow guide channel is formed between every two adjacent flow guide plates, and the flow guide channel is a first channel.

Optionally, the plurality of first channels are not in communication with each other.

In this embodiment, the bottom plate 111 and/or at least one side plate 112 may be provided with a first channel, and in one side plate 112 or the bottom plate 111, the number of the first channels may be one or more. At bottom plate 111 or curb plate 112 inside cavity of being equipped with, in the cavity, be equipped with a plurality of foretell guide plates, form a first passageway between per two guide plates, when setting up to a plurality of first passageways, a plurality of first passageways are each other not communicated, just right both sides limit of each guide plate and cavity zonulae occludens promptly, make a plurality of first passageways mutual independence, ensure the validity of liquid cooling heat dissipation runner circulation, avoid a first passageway to influence radiating defect unusually, and simultaneously, can also make between the chamber wall of cavity with connecting, promote the intensity of bottom plate 111 and/or at least curb plate 112, promote the life of box 10.

Optionally, a liquid passing cavity communicated with the liquid inlet 10B or the liquid outlet 10C is formed in one end plate 12, a plurality of liquid passing holes are formed in one side, facing the liquid cooling piece 11, of the end plate 12, the liquid passing holes are respectively communicated with the liquid passing cavity to form a liquid passing channel, and the liquid passing channel is communicated with the first channel through the liquid passing holes.

In this embodiment, the end plate 12 corresponds to the bottom plate 111 and the two side plates 112 and also has a three-side liquid passing design, wherein the liquid passing channel inside the end plate 12 is formed by a liquid passing cavity and liquid passing holes, in the one-side liquid passing design corresponding to a back plate or the bottom plate 111, when the first channel is set to be one or more, the number of the liquid passing holes corresponding to the first channel can be set to be one or more, not only can the liquid passing cavity be correspondingly communicated with one or more first channels through one liquid passing hole, but also the liquid passing cavity can be communicated with one or more first channels through a plurality of liquid passing holes, and the communication reliability between the liquid passing channel of the end plate 12 and the first channel of the liquid cooling element 11, that is, the communication reliability of the flow channel is improved.

It can be understood that can be provided with the flow distribution plate in the liquid passing channel, enclose between two adjacent flow distribution plates and close and form the reposition of redundant personnel passageway, each reposition of redundant personnel passageway corresponds an at least first passageway of intercommunication to carry out orderly water conservancy diversion to feed liquor or play liquid, make the feed liquor can be orderly through the first passageway that the liquid chamber got into to correspond, because of the influence that gravity or liquid flow blocked each other when reducing the feed liquor and flowing, evenly distributed coolant liquid promotes the heat dissipation homogeneity.

Optionally, the liquid cooling member 11 and/or the end plate 12 are of an integrally formed structure.

In this embodiment, the liquid cooling member 11 may be a temperature equalization plate, specifically a harmonica-shaped temperature equalization plate, and the cross section of each first channel is circular, triangular, rectangular or other polygonal shapes, so as to facilitate the circulation of the cooling liquid.

In another embodiment, the liquid cooling member 11 and/or the two end plates 12 are integrally formed, and are integrally formed by die casting, extrusion molding or injection molding.

The utility model discloses still provide a power converter (not shown), power converter include casing (not shown) and the thermal module group 100 as above-mentioned any one, this thermal module group 100's concrete structure refers to above-mentioned embodiment, because this power converter has adopted all technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, gives unnecessary detail here one by one. Wherein, the casing is provided with a cavity and two liquid through pipes communicated with the cavity; the two liquid passing pipes are respectively communicated with the liquid inlet 10B and the liquid outlet 10C of the heat dissipation module 100, the joint of the two liquid passing pipes and the shell is subjected to waterproof sealing treatment, and the two liquid passing pipes are communicated with an external water source to form a circulating liquid cooling heat dissipation system.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The heat dissipation module, characterized in that, the heat dissipation module includes:

the box body is provided with a containing cavity, a flow channel is further arranged inside the cavity wall of the containing cavity and is spaced from the containing cavity, and a liquid inlet and a liquid outlet which are communicated with the flow channel are further formed in the outer wall of the box body;

and the power modules are arranged on the outer wall of the box body.

2. The heat dissipation module of claim 1, wherein the interior wall of the cavity has a plurality of securing structures, one of the securing structures being connected to one of the magnetic core devices.

3. The heat dissipation module of claim 1, wherein the housing comprises:

4. The heat dissipation module of claim 3, wherein the liquid cooling element comprises:

a base plate; and

the two side plates are oppositely arranged on the bottom plate at intervals, and form the containing groove by enclosing with the bottom plate, and the periphery of the cover plate is detachably connected with the bottom plate and the two side plates;

5. The heat dissipation module of claim 4, wherein the bottom plate and both of the side plates are provided with a plurality of the first channels.

6. The heat dissipating module of claim 4, wherein a plurality of baffles are disposed in the bottom plate and/or the side plates at intervals, and the plurality of baffles extend along the length of the housing to form a plurality of first channels.

7. The heat dissipation module of claim 3, wherein the first channels are not in communication with each other.

8. The heat dissipation module of claim 3, wherein a liquid passing cavity is disposed inside one of the end plates and communicates with the liquid inlet or the liquid outlet, and a plurality of liquid passing holes are disposed on a side of the end plate facing the liquid cooling member and respectively communicate with the liquid passing cavity to form the liquid passing channel, and the liquid passing channel communicates with the first channel through the liquid passing holes.

9. The heat dissipation module of claim 3, wherein the fluid cooling member and/or the end plate are of a unitary construction.

10. A power converter, characterized in that the power converter comprises:

the heat dissipation module as claimed in any one of claims 1 to 9, wherein two of the liquid conduits are respectively in communication with the liquid inlet and the liquid outlet of the heat dissipation module.