CN207124189U - Multi-channel cooling device and there is its power model - Google Patents
Multi-channel cooling device and there is its power model Download PDFInfo
- Publication number
- CN207124189U CN207124189U CN201721111628.4U CN201721111628U CN207124189U CN 207124189 U CN207124189 U CN 207124189U CN 201721111628 U CN201721111628 U CN 201721111628U CN 207124189 U CN207124189 U CN 207124189U
- Authority
- CN
- China
- Prior art keywords
- radiating
- flow control
- pipe
- flow
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001816 cooling Methods 0.000 title abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 12
- 238000009826 distribution Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000013011 mating Effects 0.000 claims description 2
- 239000002826 coolant Substances 0.000 abstract description 25
- 230000000694 effects Effects 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract 1
- 230000037361 pathway Effects 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 description 26
- 239000000110 cooling liquid Substances 0.000 description 22
- 239000012809 cooling fluid Substances 0.000 description 8
- 238000007789 sealing Methods 0.000 description 7
- 238000005219 brazing Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The utility model discloses a kind of multi-channel cooling device and there is its power model, multi-channel cooling device includes：Multiple radiating tubes, multiple radiating tubes include the first outside radiating tube, at least one intermediate radiator pipe and the second outside radiating tube；Multiple flow control valves, the periphery wall of each flow control valve is provided with restriction, and in inlet pathway on the flow direction of liquid, the total open area of the restriction positioned at upstream is more than positioned at the total open area of the restriction in downstream.According to multi-channel cooling device of the present utility model, by setting flow control valve in multiple radiating tubes, total open area wherein positioned at the restriction in downstream is more than the total open area of the restriction positioned at upstream, so as to so that the amount of the coolant flowed into multiple radiating tubes is identical, make the radiating efficiency of each radiating tube identical, it is possible to achieve the Homogeneouslly-radiating of multi-channel cooling device.The structure of multi-channel cooling device is simple, easy for installation, it is possible to achieve more preferable radiating effect.
Description
Technical Field
The utility model belongs to the technical field of the heat dissipation technique and specifically relates to a multichannel radiator and power module who has it is related to.
Background
The IGBT power module for the vehicle can generate a large amount of heat during working, the normal work of the power module can be influenced when the temperature of the power module is too high, and a water-cooling radiator is usually arranged to radiate the heat. The water-cooled radiator comprises a plurality of flat radiating flat tubes, a power module is arranged between every two radiating flat tubes, and cooling liquid injected into the water-cooled radiator circulates among the radiating flat tubes to achieve the purpose of cooling the power module.
However, the conventional water-cooled radiator does not have the function of flow equalization, the amount of the cooling liquid flowing into each flat radiating pipe is different, and the amount of the cooling liquid in the flat radiating pipe which is farther away from the water inlet is less, so that the heat radiating efficiency of each flat radiating pipe is different, the heat radiating efficiency of the water-cooled radiator is greatly reduced, and the normal work of the power module is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a multichannel radiator, multichannel radiator has the advantage that can realize flow equalizing, the radiating efficiency is high of coolant liquid.
The utility model also provides a power module with above-mentioned multichannel radiator.
According to the utility model discloses multichannel radiator, include: a plurality of radiating pipes, the plurality of radiating pipes being distributed at intervals in a first direction and being parallel to each other, the plurality of radiating pipes including a first outside radiating pipe, at least one middle radiating pipe and a second outside radiating pipe, the middle radiating pipe being located between the first outside radiating pipe and the second outside radiating pipe, a radiating passage being provided in each of the radiating pipes, an inlet through hole and an outlet through hole being provided in each of the radiating pipes to be communicated with the radiating passage, the outlet through holes of the plurality of radiating pipes being sequentially communicated to define an outlet flow passage; the inlet pipe is communicated with the inlet through hole of the first outer radiating pipe, and the outlet pipe is communicated with the outlet through hole of the first outer radiating pipe; the flow control valves at the inlet through holes are sequentially connected to define an inlet flow path communicated with the inlet pipe, and in the flowing direction of liquid in the inlet flow path, the total opening area of the throttling ports positioned at the downstream is larger than that of the throttling ports positioned at the upstream.
According to the utility model discloses multichannel radiator, through set up flow control valve in a plurality of cooling tubes, the circulation flow path and the throttle mouth that are equipped with the coolant liquid on the flow control valve, wherein the opening total area that is located the throttle mouth of low reaches is greater than the opening total area that is located the throttle mouth of upper reaches to can make the coolant liquid volume that flows in a plurality of cooling tubes roughly the same, can make the radiating efficiency of every cooling tube the same, realize the even heat dissipation of multichannel radiator. The multi-channel radiator is simple in structure and convenient to install, and can achieve a better radiating effect.
According to some embodiments of the utility model, adjacent two the flow control valve is through grafting mode cooperation intercommunication.
In some embodiments of the present invention, the joints of two adjacent flow control valves are welded.
According to some embodiments of the invention, the flow control valve comprises: the matching part is a hollow piece, and a circulation flow path is arranged in the matching part; the flow distribution part is connected with the matching part at least at one end, a plurality of throttling ports are formed in the peripheral wall of the flow distribution part, and each throttling port is communicated with the corresponding circulation flow path to realize flow distribution; wherein the fitting portions between adjacent ones of the flow control valves are paired and combined. According to some embodiments of the invention, each of the heat dissipation tubes and the flow control valve are welded together.
According to the utility model discloses a some embodiments, every the cooling tube the export through-hole all is equipped with flow control valve, it is a plurality of export through-hole department flow control valve links to each other in proper order in order to inject the export flow path.
In some embodiments of the invention, the total area of the openings of the chokes located upstream is larger than the total area of the openings of the chokes located downstream in the direction of flow of the liquid in the outlet flow path.
In some embodiments of the present invention, the total opening area of the chokes of the two flow control valves on each radiating pipe is the same.
According to some embodiments of the invention, each flow control valve is provided with a plurality of orifices.
In some embodiments of the present invention, the plurality of orifices of each of the flow control valves are circumferentially evenly spaced apart.
According to some embodiments of the present invention, the multichannel radiator further comprises a sealing gasket, the sealing gasket is disposed at a junction of the flow control valve.
According to the utility model discloses a some embodiments, every the periphery wall of cooling tube is equipped with location portion, multichannel radiator still includes at least one fixed connector, every fixed connector passes in proper order a plurality of cooling tubes location portion.
According to the utility model discloses power module, include: a plurality of power devices; according to the utility model discloses above-mentioned embodiment's multichannel radiator is adjacent be equipped with one at least between the cooling tube power device.
According to the utility model discloses power module, through setting up above-mentioned multichannel radiator, be equipped with flow control valve in every cooling tube in the multichannel radiator, be equipped with the circulation flow path and the choke of coolant liquid on the flow control valve, the opening total area that wherein is located the choke in low reaches is greater than the opening total area that is located the choke in the upper reaches to can make the coolant liquid volume that flows in a plurality of cooling tubes roughly the same, can make the radiating efficiency of every cooling tube the same, realize the even heat dissipation of multichannel radiator. The multi-channel radiator is simple in structure and convenient to install, and can achieve a better radiating effect.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic diagram of an overall structure of a multi-channel heat sink according to an embodiment of the present invention;
FIG. 2 is a front view of the multi-channel heat sink shown in FIG. 1;
fig. 3 is a schematic view of the overall structure of a flow control valve according to an embodiment of the present invention;
fig. 4 is a schematic view of a fitting structure of a flow control valve and a gasket according to an embodiment of the present invention;
fig. 5 is a schematic view of the overall structure of a heat dissipation pipe according to an embodiment of the present invention.
Reference numerals:
the multi-channel heat sink 100 is,
a radiating pipe 10, a first outside radiating pipe 10A, a second outside radiating pipe 10B, a middle radiating pipe 10C, an inlet through hole 110, an outlet through hole 120, a positioning part 130, a mounting hole 1310, a radiating part 140,
the inlet tube 20 is provided with a sealing ring,
the outlet pipe (30) is provided with,
the flow control valve 40, the first fitting portion 410, the second fitting portion 420, the flow dividing portion 430, the orifice 4310, the packing 440,
the fixing of the connecting member 50 is performed,
the power module (200) is provided with a power module,
a power device 60.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-5, a multi-channel heat sink 100 according to an embodiment of the present invention is described, wherein the multi-channel heat sink 100 can be assembled with an IGBT power device 60 for a vehicle, and can dissipate heat of the power device 60.
As shown in fig. 1-2, a multi-channel heat sink 100 according to an embodiment of the present invention includes: a plurality of radiating pipes 10, an inlet pipe 20, an outlet pipe 30, and a plurality of flow control valves 40. As shown in fig. 1, the plurality of radiating pipes 10 are spaced apart in the first direction and are parallel to each other, and the plurality of radiating pipes 10 include a first outer radiating pipe 10A, at least one middle radiating pipe 10C and a second outer radiating pipe 10B, and the middle radiating pipe 10C is located between the first outer radiating pipe 10A and the second outer radiating pipe 10B. Specifically, for example, as shown in fig. 1, the multi-channel radiator 100 is provided with a plurality of radiating pipes 10, the plurality of radiating pipes 10 are arranged at intervals in the front-rear direction, wherein at least one middle radiating pipe 10C is arranged between a first outer radiating pipe 10A positioned at the frontmost end and a second outer radiating pipe 10B positioned at the rearmost end, and the power devices 60 are arranged between adjacent radiating pipes 10 and attached to the side surfaces of the adjacent two radiating pipes 10. The radiating pipe 10 can radiate heat to the power device 60 to reduce its operating temperature, so that the normal operation of the power device 60 can be ensured.
Each radiating pipe 10 is provided with a radiating passage through which a coolant can flow. Each radiating pipe 10 is provided with an inlet through hole 110 and an outlet through hole 120 which are communicated with the radiating path, the inlet through holes 110 of the plurality of radiating pipes 10 are sequentially connected to define an inlet flow path, and the outlet through holes 120 of the plurality of radiating pipes 10 are sequentially communicated to define an outlet flow path. When the multi-channel radiator 100 is operated, the cooling fluid can circulate in the inlet flow path, the outlet flow path and the radiating paths inside the radiating pipes 10, so that the temperature of the power device 60 between the adjacent radiating pipes 10 can be lowered.
As shown in fig. 1-2, the inlet pipe 20 is communicated with the inlet through hole 110 of the first outer radiating pipe 10A, and the outlet pipe 30 is communicated with the outlet through hole 120 of the first outer radiating pipe 10A. When the multi-channel radiator 100 is operated, the cooling liquid enters the multi-channel radiator 100 through the inlet pipe 20, wherein a part of the cooling liquid enters the heat dissipation paths in the first outer radiating pipe 10A for circulation, and the rest of the cooling liquid enters the next radiating pipe 10 along the inlet flow paths. The cooling fluid may be introduced into each radiating pipe 10 along the inlet flow path, so that the cooling fluid may be distributed and circulated in each radiating pipe 10, the cooling fluid performs heat exchange with the power devices 60 in the multi-channel radiator 100 during the circulation, and the cooling fluid after the heat exchange finally flows out from the outlet pipe 30 along the outlet flow path.
As shown in fig. 3 to 4, a flow path is formed in each flow control valve 40, a throttling port 4310 communicating with the flow path is formed in the outer circumferential wall of each flow control valve 40, a flow control valve 40 is formed at the inlet through hole 110 of each radiating pipe 10, the flow control valve 40 of each radiating pipe 10 communicates with the corresponding radiating path through the corresponding throttling port 4310, and the flow control valves 40 at the inlet through holes 110 are sequentially connected to define an inlet flow path communicating with the inlet pipe 20.
In the flow direction of the cooling liquid in the inlet flow path, the total opening area of the chokes 4310 located downstream (at a position away from the inlet pipe 20) is larger than the total opening area of the chokes 4310 located upstream (at a position close to the inlet pipe 20). Specifically, the total opening area of the chokes 4310 is the sum of the opening cross-sectional areas of the chokes 4310 on the flow control valve 40. For example, when the flow control valve 40430 is provided with an orifice 4310, the total opening area of the orifice 4310 is the opening cross-sectional area of the orifice 4310. For another example, when a plurality of chokes 4310 are provided on the flow control valve 40, the total opening area of the chokes 4310 is the sum of the opening cross-sectional areas of each of the chokes 4310 on the flow control valve 40.
It will be appreciated that, after the coolant enters the multi-channel radiator 100 from the inlet pipe 20, the flow rate of the coolant is gradually decreased as the coolant is continuously divided, and thus, the coolant flowing into the radiating pipe 10 away from the inlet pipe 20 is decreased. The total opening area of the chokes 4310 arranged at the downstream is larger than that of the chokes 4310 arranged at the upstream, so that the amount of cooling liquid flowing into the plurality of radiating pipes 10 is approximately the same, the radiating efficiency of each radiating pipe 10 is the same, the uniform radiating of the multi-channel radiator 100 is realized, and the better radiating effect can be realized.
Specifically, the total opening area of each flow throttling valve 40 can be changed by arranging different numbers of throttling ports 4310 on each flow control valve 40 and changing the opening size of the throttling ports 4310, so that the amount of the cooling liquid flowing into each radiating pipe 10 can be different, and the flow equalizing effect of the multi-channel radiator 100 can be realized.
According to the utility model discloses multichannel radiator 100, through set up flow control valve 40 in a plurality of cooling tubes 10, be equipped with the circulation flow path and the choke 4310 of coolant liquid on the flow control valve 40, wherein the opening total area that is located the choke 4310 in low reaches is greater than the opening total area that is located the choke 4310 in the upper reaches to can make the coolant liquid volume that flows in a plurality of cooling tubes 10 roughly the same, can make every cooling tube 10's radiating efficiency the same, realize multichannel radiator 100's even heat dissipation. The multi-channel radiator 100 has a simple structure, is convenient to install, and can achieve a better radiating effect.
As shown in fig. 1-2, according to some embodiments of the present invention, two adjacent flow control valves 40 are connected in a plugging manner, so as to simplify the assembly process of the multi-channel heat sink 100 and improve the assembly efficiency. Specifically, the flow control valves 40 are provided with fitting portions, and the front end portion of the fitting portion of one of the flow control valves 40 can be fitted to the rear end portion of the fitting portion of the preceding flow control valve 40 by insertion. When the multi-channel radiator 100 is assembled, the multi-channel radiator 100 can be integrally formed through the insertion fit between the adjacent flow control valves 40, so that the structure of the multi-channel radiator 100 can be simpler, the assembly and disassembly are convenient, and the number of the radiating pipes 10 on the multi-channel radiator 100 can be flexibly increased/decreased according to the requirements.
In some embodiments of the present invention, the joints of two adjacent flow control valves 40 are welded together, so that the two adjacent flow control valves 40 can be more firmly matched with each other, thereby improving the sealing performance of the inlet flow path. Preferably, the joints of two adjacent flow control valves 40 may be welded together by brazing, so that the deformation of the flow control valves 40 during welding can be reduced, and the sealing performance of the joints between the flow control valves 40 can be improved.
As shown in fig. 3, according to some embodiments of the present invention, the flow control valve 40 includes a fitting portion and a flow dividing portion 430, the fitting portion is a hollow member, and a circulation flow path of the cooling liquid is provided in the fitting portion, so that circulation of the cooling liquid in the flow control valve 40 can be realized. The shunt part 430 is formed in a substantially disk shape, and at least one end of the shunt part 430 is connected to the mating part. The outer peripheral wall of the flow dividing portion 430 is provided with a plurality of chokes 4310, the plurality of chokes 4310 are all communicated with the flow path in the flow control valve 40, a part of the coolant entering the flow control valve 40 flows into the heat dissipation path in the heat dissipation pipe 10 from the chokes 4310 through the flow path, and the other part of the coolant entering the flow control valve 40 flows into the next flow control valve 40 through the inlet flow path.
As shown in fig. 3, in a specific example of the present invention, the fitting portion includes a first fitting portion 410 and a second fitting portion 420, the first fitting portion 410 and the second fitting portion 420 are both hollow members, and a circulation flow path of the cooling liquid is provided in each of the first fitting portion 410 and the second fitting portion 420. At least one of the first fitting portion 410 and the second fitting portion 420 is formed as a single body with the flow dividing portion 430, and a combination of the first fitting portion 410 and the second fitting portion 420 may be formed between adjacent flow control valves 40. The flow control valve 40 has various forms of components, that is, an integral member of the first fitting portion 410 and the flow dividing portion 430, an integral member of the second fitting portion 420 and the flow dividing portion 430, an integral member of the first fitting portion 410, the second fitting portion 420 and the flow dividing portion 430, an integral member of two first fitting portions 410 and the flow dividing portion 430, and an integral member of two second fitting portions 420 and the flow dividing portion 430.
The flow control valve 40 engaged with the first outside radiating pipe 10A may be an integral piece of the second engaging portion 420 and the diverging portion 430 or an integral piece of the first engaging portion 410 and the diverging portion 430. The flow control valve 40 engaged with the second radiating pipe 10B may be formed as an integral body of the second engaging portion 420 and the diverging portion 430 or formed as an integral body of the first engaging portion 410 and the diverging portion 430. The flow control valve 40 engaged with the middle radiating pipe 10C may be an integral piece of the first engaging portion 410, the second engaging portion 420 and the diverging portion 430, an integral piece of the two first engaging portions 410 and the diverging portion 430, or an integral piece of the two second engaging portions 420 and the diverging portion 430.
For example, when the multi-channel radiator 100 is assembled, the flow control valve 40 on the first outer radiating pipe 10A is an integral piece composed of the second matching portion 420 and the branch portion 430, the flow control valve 40 on the middle radiating pipe 10C adjacent to the first outer radiating pipe 10A is an integral piece composed of the two first matching portions 410 and the branch portion 430, the flow control valve 40 on the next middle radiating pipe 10C is an integral piece composed of the two second matching portions 420 and the branch portion 430, and so on, the two adjacent radiating pipes 10 are connected in a matching manner through the first matching portions 410 and the second matching portions 420, thereby forming the integral structure of the multi-channel radiator 100. It is of course understood that the combination manner between the adjacent flow control valves 40 is not limited thereto as long as it is ensured that the flow control valves 40 of the adjacent radiating pipes 10 can be combined into the combination of the first fitting part 410 and the second fitting part 420. As shown in fig. 5, each radiating pipe 10 and the flow control valve 40 are welded to each other, so that the fitting between the radiating pipe 10 and the flow control valve 40 is more firm and the sealing performance is better. Preferably, the radiating pipe 10 and the flow control valve 40 may be welded together by brazing. It can be understood that the brazing has the advantages of smooth and flat welding joints, small change of the welding joint structure and mechanical properties, etc., so that the matching between the heat dissipation pipe 10 and the flow control valve 40 can be more compact and firmer, the sealing performance of the cooling liquid flow path can be improved, and the heat dissipation efficiency of the multi-channel heat sink 100 can be further improved.
As shown in fig. 1-2, according to some embodiments of the present invention, the outlet through holes 120 of each radiating pipe 10 are provided with flow control valves 40, and the flow control valves 40 at the plurality of outlet through holes 120 are sequentially connected to define an outlet flow path, so that the flow efficiency of the cooling fluid in the multi-channel radiator 100 can be improved. Specifically, for example, as shown in fig. 1, the flow control valves 40 are disposed at the inlet through holes 110 and the outlet through holes 120 of each radiating pipe 10 of the multi-channel radiator 100, the flow control valves 40 at the inlet through holes 110 are sequentially connected to form an inlet flow path, and the flow control valves 40 at the outlet through holes 120 are sequentially connected to form an outlet flow path, so that the overall structure of the multi-channel radiator 100 can be simplified, and the flow control valves 40 can control the flow rate of the coolant in each radiating pipe 10, thereby enabling the coolant to smoothly flow through the inlet flow path and the outlet flow path.
As shown in fig. 3-4, according to some embodiments of the present invention, each flow control valve 40 is provided with a plurality of chokes 4310, so as to facilitate the control of the flow of the cooling fluid in each radiating pipe 10.
As shown in fig. 3 to 4, in some embodiments of the present invention, the plurality of chokes 4310 of each flow control valve 40 are uniformly spaced in the circumferential direction of the flow dividing portion 430, so that the structure of the flow control valve 40 can be more regular, and mass production thereof can be realized.
In some embodiments of the present invention, the multi-channel radiator 100 further includes a gasket 440, and the gasket 440 is disposed at a joint of two adjacent flow control valves 40. Specifically, the packing 440 is provided at the junction of the first fitting portion 410 and the second fitting portion 420, so that the closing performance of the flow control valve 40 can be improved. Alternatively, the gasket 440 may be a rubber ring.
In some embodiments of the present invention, in the flowing direction of the liquid in the outlet flow path, the total opening area of the chokes 4310 located at the upstream (the position far away from the outlet pipe 30) is larger than the total opening area of the chokes 4310 located at the downstream (the position near the outlet pipe 30), so as to facilitate the backflow of the cooling liquid after the heat exchange is completed. It can be understood that the flow velocity of the cooling liquid at the upstream becomes slower after the circulation and heat exchange, and the cooling liquid in the heat dissipation passage can be conveniently circulated into the outlet flow path by increasing the total opening area of the chokes 4310, so that the circulation velocity of the cooling liquid in the multi-channel heat sink 100 can be increased, and the heat exchange efficiency thereof can be further improved.
In some embodiments of the present invention, the total opening area of the chokes 4310 of the two flow control valves 40 on each radiating pipe 10 is the same, so that the uniform heat dissipation of the multi-channel radiator 100 can be realized. It can be understood that the total opening area of the chokes 4310 of the two flow control valves 40 on each radiating pipe 10 is the same, which can ensure that the circulation time of the cooling liquid in each radiating pipe 10 is approximately the same, so that the radiating efficiency of a plurality of radiating pipes 10 is approximately the same, thereby achieving the uniform heat radiation of the multi-channel radiator 100 and ensuring the normal operation of the power device 60 connected thereto.
As shown in fig. 1-2 and 5, according to some embodiments of the present invention, the outer peripheral wall of each radiating pipe 10 is provided with a positioning portion 130, the multi-channel radiator 100 further includes at least one fixing connector 50, and each fixing connector 50 sequentially passes through the positioning portions 130 of a plurality of radiating pipes 10, so that the structure of the multi-channel radiator 100 can be more firm. For example, as shown in fig. 5, each radiating pipe 10 includes a positioning portion 130 and a radiating portion 140, wherein the positioning portion 130 is sleeved on the radiating portion 140, and the positioning portion 130 and the radiating portion 140 can be connected together by brazing. The heat dissipation portion 140 is provided with a heat dissipation passage, and the coolant flows through the heat dissipation portion 140. The fixing holes 1310 are formed at both ends of the fixing part 130, and two fixing connectors 50 may be sequentially inserted through the fixing holes 1310 formed at both ends of the fixing part 130 of each radiating pipe 10 to connect the plurality of radiating pipes 10 together, thereby making the overall structure of the multi-channel radiator 100 more compact and firm. It should be noted that the number of the fixed connecting members 50 can be selected according to actual requirements.
According to the present invention, the power module 200 comprises a plurality of power devices 60 and the multi-channel heat sink 100 according to the present invention. At least one power device 60 is disposed between adjacent radiating pipes 10, each power device 60 generates a large amount of heat during operation, and the cooling fluid circulating through the radiating pipes 10 can reduce the temperature of the power device 60. Since the front and rear sides of each power device 60 are uniformly contacted with the heat dissipation pipe 10, the heat dissipation efficiency of each power device 60 can be improved, and the normal operation of each power device 60 can be ensured.
According to the utility model discloses power module 200, through setting up above-mentioned multichannel radiator 100, be equipped with flow control valve 40 in every cooling tube 10 in the multichannel radiator 100, be equipped with the circulation flow path and the choke 4310 of coolant liquid on the flow control valve 40, wherein the opening total area that is located the choke 4310 of low reaches is greater than the opening total area that is located the choke 4310 of upper reaches, thereby can make the coolant liquid volume that flows in a plurality of cooling tubes 10 roughly the same, can make every cooling tube 10's radiating efficiency the same, realize multichannel radiator 100's even heat dissipation. The multi-channel radiator 100 has a simple structure, is convenient to install, and can achieve a better radiating effect. Referring to fig. 1-5, a multi-channel heat sink 100 according to an embodiment of the present invention is described in detail, where the multi-channel heat sink 100 can be assembled with an IGBT power device 60 for a vehicle, and can dissipate heat of the power device 60. It is to be understood that the following description is exemplary only, and is not a specific limitation of the invention.
As shown in fig. 1-2, 5, the multichannel heat sink 100 includes: an inlet pipe 20, an outlet pipe 30, a plurality of radiating pipes 10, and a plurality of flow control valves 40. A plurality of radiating pipes 10 are spaced apart in the front-rear direction, wherein at least one middle radiating pipe 10C is provided between the first outer radiating pipe 10A located at the foremost end and the second outer radiating pipe 10B located at the rearmost end, and power devices 60 are provided between the adjacent radiating pipes 10 and attached to the sides of the adjacent two radiating pipes 10. Each radiating pipe 10 comprises a positioning part 130 and a radiating part 140, wherein the positioning part 130 is sleeved on the radiating part 140, and the positioning part 130 and the radiating part 140 are connected together by brazing.
A heat dissipation path is formed in the heat dissipation portion 140 of each heat dissipation pipe 10, an inlet through hole 110 and an outlet through hole 120 which are communicated with the heat dissipation path are formed in each heat dissipation pipe 10, flow control valves 40 are respectively arranged at the inlet through hole 110 and the outlet through hole 120, and the flow control valves 40 and the heat dissipation pipes 10 are fixed together by brazing. The inlet pipe 20 is communicated with the inlet through hole 110 of the first outer radiating pipe 10A, and the outlet pipe 30 is communicated with the outlet through hole 120 of the first outer radiating pipe 10A.
As shown in fig. 3 to 4, each flow control valve 40 includes a first fitting portion 410, a second fitting portion 420 and a flow dividing portion 430, the flow control valve 40 on the first outer radiating pipe 10A is an integral member formed by the second fitting portion 420 and the flow dividing portion 430, the flow control valve 40 on the middle radiating pipe 10C adjacent to the first outer radiating pipe 10A is an integral member formed by two first fitting portions 410 and the flow dividing portion 430, the flow control valve 40 on the next middle radiating pipe 10C is an integral member formed by two second fitting portions 420 and the flow dividing portion 430, and so on, the adjacent two radiating pipes 10 are fittingly connected by the first fitting portions 410 and the second fitting portions 420, thereby forming the overall structure of the multi-channel radiator 100.
The flow dividing portion 430 is formed in a substantially disk shape, a plurality of orifices 4310 are provided at regular intervals on the outer peripheral wall of the flow dividing portion 430, and a flow passage communicating with each orifice 4310 is provided in each flow rate control valve 40. Wherein the total area of the openings of the chokes 4310 located downstream (at a position away from the inlet pipe 20) is larger than the total area of the openings of the chokes 4310 located upstream (at a position close to the inlet pipe 20) in the flow direction of the cooling liquid in the inlet flow path, and wherein the total area of the openings of the chokes 4310 located upstream (at a position away from the outlet pipe 30) is larger than the total area of the openings of the chokes 4310 located downstream (at a position close to the outlet pipe 30) in the flow direction of the cooling liquid in the outlet flow path.
Specifically, when the multi-channel radiator 100 is operated, the coolant enters the multi-channel radiator 100 through the inlet pipe 20, a part of the coolant enters the heat radiating path in the first outer radiating pipe 10A through the chokes 4310 of the flow control valve 40 to flow therethrough, and the remaining part of the coolant flows into the next flow control valve 40 along the inlet path, and the coolant is distributed in the next flow control valve 40 in the same manner as the first outer radiating pipe 10A, whereby the coolant is uniformly distributed to and flows through each of the radiating pipes 10. The cooling liquid completes heat exchange with the power device 60 in the multi-channel heat sink 100 during the circulation process, and the cooling liquid after heat exchange enters the outlet flow path and finally flows out from the outlet pipe 30 along the outlet flow path, thereby completing a heat dissipation cycle of the multi-channel heat sink 100.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (13)
1. A multi-channel heat sink, comprising:
a plurality of radiating pipes, the plurality of radiating pipes being distributed at intervals in a first direction and being parallel to each other, the plurality of radiating pipes including a first outside radiating pipe, at least one middle radiating pipe and a second outside radiating pipe, the middle radiating pipe being located between the first outside radiating pipe and the second outside radiating pipe, a radiating passage being provided in each of the radiating pipes, an inlet through hole and an outlet through hole being provided in each of the radiating pipes to be communicated with the radiating passage, the outlet through holes of the plurality of radiating pipes being sequentially communicated to define an outlet flow passage;
the inlet pipe is communicated with the inlet through hole of the first outer radiating pipe, and the outlet pipe is communicated with the outlet through hole of the first outer radiating pipe;
the flow control valves at the inlet through holes are sequentially connected to define an inlet flow path communicated with the inlet pipe, and in the flowing direction of liquid in the inlet flow path, the total opening area of the throttling ports positioned at the downstream is larger than that of the throttling ports positioned at the upstream.
2. The multichannel radiator of claim 1, wherein two adjacent flow control valves are in mating communication by plugging.
3. The multi-channel heat sink of claim 2, wherein the junctions of two adjacent flow control valves are welded together.
4. The multi-channel heat sink of claim 1, wherein the flow control valve comprises:
the matching part is a hollow piece, and a circulation flow path is arranged in the matching part;
the flow distribution part is connected with the matching part at least at one end, a plurality of throttling ports are formed in the peripheral wall of the flow distribution part, and each throttling port is communicated with the corresponding circulation flow path to realize flow distribution; wherein,
the fitting portions between the adjacent flow control valves are paired and combined.
5. The multi-channel radiator of claim 1 wherein each of said heat pipes and said flow control valve are welded together.
6. The multi-channel radiator as claimed in claim 1, wherein said outlet through holes of each of said radiating pipes are provided with said flow control valves, and said flow control valves at a plurality of said outlet through holes are connected in series to define said outlet flow paths.
7. The multichannel heat sink of claim 6, wherein the total open area of the chokes located upstream is larger than the total open area of the chokes located downstream in the flow direction of the liquid in the outlet flow path.
8. The multi-channel radiator of claim 7 wherein the total area of the openings of said chokes of both said flow control valves on each of said radiating tubes is the same.
9. The multichannel heat sink of claim 1, wherein a plurality of said orifices are provided on each of said flow control valves.
10. The multichannel heat sink of claim 9, wherein the plurality of orifices of each flow control valve are evenly circumferentially spaced.
11. The multi-channel heat sink of claim 1, further comprising a gasket disposed at a junction of two adjacent flow control valves.
12. The multi-channel radiator of claim 1, wherein the outer peripheral wall of each of the radiating pipes is provided with a positioning portion, and the multi-channel radiator further comprises at least one fixing connector, each of the fixing connectors sequentially passing through the positioning portions of the plurality of radiating pipes.
13. A power module, comprising:
a plurality of power devices;
the multi-channel radiator as claimed in any one of claims 1 to 12, wherein at least one of said power devices is disposed between adjacent ones of said radiating pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721111628.4U CN207124189U (en) | 2017-08-31 | 2017-08-31 | Multi-channel cooling device and there is its power model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721111628.4U CN207124189U (en) | 2017-08-31 | 2017-08-31 | Multi-channel cooling device and there is its power model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207124189U true CN207124189U (en) | 2018-03-20 |
Family
ID=61611653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721111628.4U Active CN207124189U (en) | 2017-08-31 | 2017-08-31 | Multi-channel cooling device and there is its power model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207124189U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110323194A (en) * | 2018-03-30 | 2019-10-11 | 比亚迪股份有限公司 | Electric machine controller and its manufacturing method, vehicle |
-
2017
- 2017-08-31 CN CN201721111628.4U patent/CN207124189U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110323194A (en) * | 2018-03-30 | 2019-10-11 | 比亚迪股份有限公司 | Electric machine controller and its manufacturing method, vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109427708B (en) | Multichannel radiator and power module with same | |
| WO2016127633A1 (en) | Cooling plate, cooling apparatus, and communication device | |
| CN110996630A (en) | Heat radiator | |
| JP2016145569A (en) | Integrated EGR cooler | |
| CN104422200A (en) | Micro-channel heat exchanger and manufacturing method of micro-channel heat exchanger | |
| CN207124189U (en) | Multi-channel cooling device and there is its power model | |
| CN115548504B (en) | Battery cold plate and battery system | |
| CN212209704U (en) | Cooling plate subassembly and vehicle | |
| CN104024780A (en) | Modular heat exchanger | |
| CN107504687B (en) | Multi-path parallel turbulent tube type heat exchange device | |
| CN212350802U (en) | Multi-region liquid cooling laser cutting head | |
| CN209326434U (en) | Heat exchanger assemblies | |
| CN217994055U (en) | Runner integrated component and vehicle with same | |
| CN101782338A (en) | Heat exchanger | |
| KR101251260B1 (en) | Oil Cooler | |
| CN206347897U (en) | Strengthen the pipe rock radiator of outside flat tube | |
| WO2022062605A1 (en) | Tray and battery pack having same | |
| CN104457343B (en) | A kind of tubular arc heat exchange plate type heat-exchanger rig | |
| CN208572652U (en) | A kind of aluminum profile water-cooled radiator | |
| KR20070108694A (en) | A water cooler | |
| TWI792414B (en) | Vortex Heat Exchanger | |
| CN218031652U (en) | Valve assembly, connecting pipeline and thermal management system | |
| CN216288644U (en) | Battery module cooling system | |
| CN218274754U (en) | Liquid cooling plate, liquid cooling plate assembly and battery pack | |
| CN218498192U (en) | Battery that dispels heat evenly is water-cooling board for package |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200102 Address after: 518119 1 Yanan Road, Kwai Chung street, Dapeng New District, Shenzhen, Guangdong Patentee after: SHENZHEN BYD MICROELECTRONICS Co.,Ltd. Address before: 516083 Guangdong city of Huizhou province Dayawan xiangshuihe Patentee before: HUIZHOU BYD INDUSTRIAL Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province Patentee after: BYD Semiconductor Co.,Ltd. Address before: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN BYD MICROELECTRONICS Co.,Ltd. Address after: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province Patentee after: BYD Semiconductor Co.,Ltd. Address before: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province Patentee before: BYD Semiconductor Co.,Ltd. |