CN206471325U - Liquid cooling structure - Google Patents
Liquid cooling structure Download PDFInfo
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- CN206471325U CN206471325U CN201621483836.2U CN201621483836U CN206471325U CN 206471325 U CN206471325 U CN 206471325U CN 201621483836 U CN201621483836 U CN 201621483836U CN 206471325 U CN206471325 U CN 206471325U
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- liquid
- bridge
- cooling structure
- support frame
- closed plate
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Abstract
A kind of cooling structure radiated suitable for automotive grade electric machine controller of the utility model Creative Design, the structure employs Dual-layer flow passage structure, and devise a kind of flow dividing structure at intake-outlet, it is achieved thereby that the purpose of design such as compact conformation, radiating efficiency are high, assembly difficulty is small.Especially, it should be noted that, the utility model create purpose of design although be solve automotive grade electric machine controller heat dissipation problem, but the utility model create technical scheme may be equally applicable for it is other need radiate structures on.
Description
Technical field
The utility model creates the technical field for being related to mechanical component, specifically a kind of to be used for automotive grade electric machine controller
The liquid cooling structure of internal heat dissipating.
Background technology
Electric machine controller（MCU）Main function be that the DC current that battery supply is sent is regulated and controled, be converted to symbol
The three-phase alternating current of conjunction demand, so as to be controlled to motor, realizes corresponding driving purpose.For the motor of automotive grade
For controller, its electric current passed through is insulated gate bipolar crystal that is very big, being particularly connected with three interfaces of output
Tube module（IGBT module）, as the critical piece of regulation and control output current, with very big caloric value, if can not be in time by heat
Amount is exhaled, and too high temperature can cause IGBT module to fail, for the automobile run at high speed, and dynamical system manipulation is lost
Spirit will threaten the band personal safety as well as the property safety of driver and passenger.Therefore, it is necessary to around the corresponding cooling knot of IGBT module design
Structure, makes IGBT possess good radiating effect, so as to maintain in normal operating temperature range.
We are investigated to prior art, liquid cooling structure is because its cost is low, efficiency high and be widely used, from whole
From the point of view of in body structure, it is adaptable to which it is other that the liquid cooling structure of IGBT module can be greatly classified into three major types：
Firstth, single channel pattern, for example, Chinese patent, electric machine controller radiator structure, publication number：CN 205161005
U, discloses a kind of electric machine controller radiator structure, including:For the cooled plate of radiating, chip, the pcb board with mounting groove,
Radiator, the cooled plate, the chip, the pcb board, the radiator are cascading from bottom to up, for making
For the chip cooling of pyrotoxin.The technical scheme of this type, than larger, is imitated in ceiling structure system due to ensure to cool down
Rate, therefore, its liquid in-out mouthful are needed in the both sides of structure, it is impossible to adapt to outer mounting structure of the liquid in-out mouthful in structure homonymy.
Secondth, single channel is combined U-shaped pattern, for example, Chinese patent, a kind of columnar lithium ion battery group high-efficiency water cooling radiating
Device, publication number：The A of CN 106025437, disclose a kind of columnar lithium ion battery group water-cooling heat radiating device, including water inlet,
Delivery port and water-cooling jacket, it is characterised in that：Also include heat-transfer pipe, the heat-transfer pipe is with being arranged on the water-cooling jacket
Cooling Holes are socketed, and recycle stream chamber and cutoff board are provided with described water-cooling jacket, and the cutoff board connects the Cooling Holes
Side-wall outer side, the recycle stream chamber by the training wall be separated into it is multiple be used for determine fluid circulation direction pilot flows and
Delay runner for extending the fluid circulation time, described pilot flow is arranged at intervals with described delay runner and is mutually connected
It is logical.Although the technical scheme of this type realizes liquid in-out mouthful homonymy relative to first kind scheme, but, for IGBT module
Structure has certain requirement, and being particularly some has IGBT modules of radiating toothing, and its radiation tooth needs energy is set with runner
Meter structure is engaged and could used, and requires higher for technological level, and easily cause in assembling process radiation tooth bending,
Damage.
In addition, being combined U-shaped pattern for single channel, its Homogeneouslly-radiating and cooling effectiveness are also the problem of needing to face.
For Homogeneouslly-radiating, radiation tooth near inlet is low due to coolant temperature, good heat dissipation effect, and liquid outlet
Neighbouring radiation tooth is high due to coolant temperature, and radiating effect is poor, and liquid in-out mouthful homonymy will be brought near inlet and liquid outlet
The adjacent relatively near but radiating effect difference of radiation tooth it is larger so that the big temperature difference in the range of region, easy influence IGBT moulds
The normal work of block even causes damage to IGBT module.
For cooling effectiveness, because liquid in-out is mouthful adjacent compared near and temperature difference is larger, if port plate is employed
Heat-barrier material, then not only add difficulty in terms of assembling and manufacturing process（Port plate is different with the material of radiator structure,
It is manufactured, assembling is all new problem）, and add cost（Material cost, assembly cost）；If port plate do not use every
Coolant near heat transfer, inlet will directly occur near liquid in-out mouthful by port plate for hot material, coolant
Equivalent to being cooled down to the coolant near liquid outlet, and the coolant of liquid outlet has actually been not involved in cooling
Work, so as to reduce cooling effect.
3rd, dual channel pattern, for example, Chinese patent, liquid cooling heat radiator, publication number：CN 201204783Y, are disclosed
A kind of liquid cooling heat radiator, for carrying out heat exchange, including good heat conduction and heat radiation main body with power model mounted thereto, described
In heat sink body at least provided with hierarchal arrangement and two layers of runner being connected in series;Runner after being connected in series includes feed liquor
Mouth and liquid outlet.By hierarchal arrangement and two layers of runner being connected in series, the two-sided installation application of radiator is realized.But be related to
Automotive grade IGBT module, the IGBT module of liquid outlet side is higher due to coolant liquid temperature, and radiating efficiency is low, relative to conventional
For cooling structure, this, which simultaneously needs to design more effective coolant flow channel structure, could meet needs；If it is considered that overall dissipate
The problem of thermal efficiency, in addition it is also necessary to some structures reduction radiating efficiency is designed in inlet side, could so liquid outlet be being met
While the IGBT module radiating requirements of side, it is ensured that the coolant temperature of liquid outlet is unlikely to too low, radiator structure whole efficiency
Meet demand.But, so doing can cause cost to increase, availability reduction.
Simultaneously as the non-radiating surfaces of IGBT typically connect driving plate, electronics of the driving plate on printed circuit board (PCB) and some plates
Element is constituted, and dual channel pattern can cause cooling structure both sides to be all electric circuit construction, and this can bring greatly in fit on
In difficulties and problems, assembling process, either place or and electric machine controller in the assembling of other parts, be required for special
Frock, and easily bring the damage of part.
Utility model creates content
The purpose that the utility model is created is to be directed to deficiency of the prior art, designs a scattered for IGBT module with teeth
The liquid cooling structure of heat, the liquid cooling structure supports homonymy turnover coolant, can solve the uneven, cooling effectiveness that radiates in the prior art
Low the problem of, meanwhile, it is more suitable for industry assembling production relative to prior art.
A kind of liquid cooling structure, including support frame and closed plate, the one side of support frame is provided with close between groove parallel port and closed plate
Envelope coordinates；
The middle part of described support frame is provided with demarcation strip, one end of closed plate provided with shunting bridge, one end of demarcation strip and point
Seal and coordinate between the bridge floor of stream bridge, provided with circulation port between the other end and support frame of demarcation strip, demarcation strip and shunting bridge
Bridge floor the space between support frame and closed plate is divided into first flow and second flow channel, first flow and second flow channel are logical
Cross circulation port serial communication；
Closed plate is connected provided with the first liquid in-out mouthful and the second liquid in-out mouthful, the second liquid in-out mouthful with second flow channel；
Shunt and drainage channel is provided with bridge, one end of drainage channel is connected in the bridge floor of shunting bridge with first flow, draws
The other end of circulation road and the first liquid in-out mouthful are connected.
It is preferred that, it can adopt the following technical scheme that：
Shunting bridge and closed plate are integrally formed；Or shunting bridge includes bridge post and bridge floor, bridge post and closed plate are integrally formed,
Bridge floor is fixed on bridge post.
The former advantage is that assembly technology is simple, and the advantage of the latter is simple production process, and scrappage is low.
Support frame is integrally formed.
First flow and second flow channel are arranged at the one end of closed plate provided with shunting bridge.
It is further preferred that with regard to different radiating positions and radiating requirements, following technical scheme can be selected：
When we using first flow as coolant flow channel when：
First liquid in-out mouth is arranged on the one end of closed plate provided with shunting bridge, and drainage channel is in the opening position of shunting bridge bridge floor
In on shunting bridge and the common axis of demarcation strip.
Support frame is provided with cooling notch, and cooling notch is available for the radiating element insertion with radiating toothing.
When radiating element is arranged on the top of liquid cooling structure, described the first liquid in-out mouthful is liquid outlet, coolant warp
Second liquid in-out mouthful enters liquid cooling structure, by second flow channel, reaches first flow to the radiating element that is attached on support frame
Cooled down, the coolant after work is reached and discharged after the first liquid in-out mouthful by drainage channel.
When we using second flow channel as coolant flow channel when：
Second liquid in-out mouth is arranged on the one end of closed plate provided with shunting bridge and on the axis of closed plate.
Closed plate is provided with cooling notch, and cooling notch is available for the radiating element insertion with radiating toothing.
When radiating element is arranged on the top of liquid cooling structure, the second liquid in-out mouthful is liquid outlet, and coolant is entered through first
Liquid outlet, through drainage channel, reaches first flow, enters back into second flow channel and the radiating element being attached in closed plate is carried out
Cooling, the coolant after work reaches discharges after the second liquid in-out mouthful.
Still further preferably, can also be from such as in order to preferably lift advantage of the liquid cooling structure on assembly technology
Lower technical scheme：
It can be consolidated between support frame and closed plate using one or more combinations in the modes such as bolt, bonding, melting welding
It is fixed.
The sealing ring no less than one layer is provided with first liquid in-out mouthful and the second liquid in-out mouthful, for ensureing the first liquid in-out
Sealing between mouth and the second liquid in-out mouthful and extraneous coolant circulation system coordinates.
In order to further lift the assembling convenience of liquid cooling structure, we are additionally provided with technique post on support frame, for
When being processed installation, the fixation of frock.
When the bridge floor and bridge post that shunt bridge are not to be integrally formed, spiral shell can also be used between the bridge floor and bridge post that shunt bridge
One or more combinations in the modes such as bolt, bonding, melting welding are fixed.
Beneficial effect：
1st, relative to the single described in background technology, the utility model is created involved cooling structure and possessed
Positioned at structure homonymy liquid in-out mouthful, the need for meeting design production.
2nd, U-shaped pattern is combined relative to the single channel described in background technology, the utility model is created radiating uniformly, kept away
The appearance of the local big temperature difference is exempted from.
3rd, relative to the dual channel pattern described in background technology, the cost that the utility model is created is lower, technique dress
With more simply, percent defective is smaller.
4th, in addition, when being separated to liquid in-out, the utility model, which is created, specially devises splitter box and shunting bridge, from
And the differentiation of turnover coolant is realized in a structure, relative to the two-tube framework of turnover of the prior art, structure is tighter
Gather.
Brief description of the drawings
Fig. 1 is half schematic top plan view of the liquid cooling structure that the utility model is created.
Fig. 2 is half elevational schematic view of the liquid cooling structure that the utility model is created.
Fig. 3 is the tangent plane schematic diagram for the liquid cooling structure that the utility model is created, and its midsagittal plane passes through the first liquid in-out mouthful.
Fig. 4 is the tangent plane schematic diagram for the liquid cooling structure that the utility model is created, its midsagittal plane be located at the first liquid in-out mouthful and
Between second liquid in-out mouthful.
Fig. 5 is half elevational schematic view of the support frame that the utility model is created.
Fig. 6 is half schematic top plan view of the closed plate that the utility model is created.
Label declaration in figure：
1st, support frame；2nd, closed plate；3rd, notch is cooled down；4th, demarcation strip；5th, port is circulated；
6th, bridge is shunted；6-1, bridge floor；6-2 bridge posts；
7th, first flow；8th, second flow channel；9th, the first liquid in-out mouthful；10th, the second liquid in-out mouthful；11st, drainage channel；12、
Technique post.
Embodiment
We have chosen a conventional operational mode state and are described as embodiment, in the present embodiment, wait to dissipate
Thermal device is IGBT module.
IGBT module is set to top by us relative to the direction where liquid cooling structure, by shunting bridge 6 or liquid in-out mouthful institute
Direction be set to left, it is other square the like.
Liquid cooling structure, including support frame 1 and closed plate 2, the bottom of support frame 1 are provided with notch, and notch direction downwards, is propped up
Seal and coordinate between the notch and closed plate 2 of support 1, and using one or more combinations in the modes such as bolt, bonding, melting welding
It is fixed.
The inner hollow of support frame 1, its upper surface provided with cooling notch 3, the lower surface of IGBT module and support frame 1 it is upper
Seal and coordinate between surface, the lower surface of IGBT module is provided with radiation tooth, and radiation tooth is probeed into support frame 1.
The middle part of support frame 1 is provided with demarcation strip 4, and the rear and front end of demarcation strip 4 and support frame 1 are fixed, the left end of demarcation strip 4
A rectangle port is left between support frame 1, it is named as circulation port 5 by us.
The left end of closed plate 2 is matched somebody with somebody provided with shunting bridge 6, the left end sealing of shunting bridge 6 bridge floor 6-17 right-hand member and demarcation strip 4
Close, shunting bridge 6 bridge floor 6-17 other edges and the inner seal of support frame 1 coordinate.
By shunting the structure of the bonus point dividing plate 4 of bridge 6, the space between support frame 1 and closed plate 2 is subjected to upper lower leaf,
Upper strata is set to first flow 7, and lower floor is set to second flow channel 8, connected between first flow 7 and second flow channel 8 by circulating port 5
Connection.
The bottom of closed plate 2 is provided with the liquid in-out mouthful 10 of the first liquid in-out mouthful 9 and second.
Wherein, the first liquid in-out mouthful 9 is arranged on the bridge bottom of shunting bridge 6, and on the axis of closed plate 2, shunts bridge 6
Bridge floor 6-17 be provided with drainage port, the position of drainage port is located at the shunting bridge floor 6-17 of bridge 6 and the common axis of demarcation strip 4
On line, and it is corresponding with the first liquid in-out mouthful 9, drainage channel 11 is provided between the first liquid in-out mouthful 9 and drainage port, so,
First flow 7 in sealed states, is connected through second flow channel 8 with the first liquid in-out mouthful 9.
Second liquid in-out mouthful 10 is located at one side of the first liquid in-out mouthful 9, and is directly connected with second flow channel 8.
During real work, we typically use described the first liquid in-out mouthful 9 for liquid outlet, and coolant is through the second liquid in-out
Mouth 10 enters liquid cooling structure, by second flow channel 8, and the radiating element that 7 pairs of first flow of arrival is attached on support frame 1 carries out cold
But, the coolant after work is reached and discharged after the first liquid in-out mouthful 9 by drainage channel 11.
It is of course also possible to which using the first liquid in-out mouthful 9 as inlet, the second liquid in-out mouthful 10 carries out work as liquid outlet
Make, the mode of operation that such coolant is described in liquid cooling structure relative to the preceding paragraph is reverse；Such mode of operation is deposited
In two problems：
Firstth, coolant will pass through a long return flow path after cooling work is completed, in this path,
If demarcation strip 4 uses the preferable material of heat conduction, then the coolant for completing work will be constantly using working
Coolant is cooled down, and its temperature is significantly less than acceptable maximum temperature exactly when coolant flows out the problem of generation, so
It is actually a kind of to waste；
If the second, coolant has a faster flow velocity when entering liquid cooling structure, then be likely in liquid cooling mechanism
In gas be not fully drained in the case of, coolant is just filled with liquid cooling structure, then the undischarged gas in this part
The space in liquid cooling structure will be substantially taken, influence is produced on cooling effect.
In the process of manufacture of each part, shunting bridge 6 and closed plate 2 can be integrally formed；It may also be shunting bridge 6
Including bridge post 6-2 and bridge floor 6-17, bridge post 6-2 and closed plate 2 are integrally formed, and bridge floor 6-17 is fixed on bridge post 6-2；For rear
A kind of mode, can also be using one kind in the modes such as bolt, bonding, melting welding between the bridge floor 6-17 and bridge post 6-2 of shunting bridge 6
Or multiple combinations are fixed, bridge floor 6-17 material can also select the material of good heat-insulation effect, to lift operating efficiency.
The processing mode of above two part, the former advantage is that assembly technology is simple, but is due to be deposited in closed plate 2
In this structure of shunting bridge 6, its production process is more complicated, and scrappage can be higher；And the advantage of the latter is production technology
Simply, scrappage is low, but accordingly, on assembly process, the step for fixed bridge floor 6-17 can be increased.
Usually, support frame 1 is integrally formed.
Usually, one or two sealing ring is equipped with the liquid in-out mouthful 10 of the first liquid in-out mouthful 9 and second, for ensureing
Sealing between the liquid in-out mouthful 10 of first liquid in-out mouthful 9 and second and extraneous coolant circulation system coordinates.
In order to further lift the assembling convenience of liquid cooling structure, we are additionally provided with technique post 12, are used on the supporting plate
When being processed installation, the fixation of frock.
, can also be using second flow channel 8 as coolant flow channel, by radiating element except in the case of embodiment displaying in accompanying drawing
The top of liquid cooling structure is arranged on, corresponding, the second liquid in-out mouthful 10 is arranged on the one end of closed plate 2 provided with shunting bridge 6 and position
In on the axis of closed plate 2.
Closed plate 2 is provided with cooling notch 3, and cooling notch 3 is available for the radiating element insertion with radiating toothing.
Second liquid in-out mouthful 10 is liquid outlet, and coolant is through the first liquid in-out mouthful 9, through drainage channel 11, reaches first
Runner 7, enters back into 8 pairs of radiating elements being attached in closed plate 2 of second flow channel and cools down, and the coolant after work reaches
Discharged after two liquid in-outs mouthful 10.
Particularly, if if having demand in terms of external structure Fixture Design, such as in outside liquid cooling system requirement
Inlet can be adjusted in other positions such as the bottoms, left side, right side of cooling structure to the position of inlet.
Particularly, although the design original intention that the utility model is created is the radiating requirements around automotive grade electric machine controller,
But the scheme that design is completed is not only applicable to electric machine controller, for other devices, particularly power unit structure, such as
DCDC, DCAC, ACDC etc. are applicable.
Create provided technical scheme to the utility model above to be described in detail, for the general skill of this area
Art personnel, according to the thought of the present embodiment, will change in specific embodiments and applications, in summary,
This specification content should not be construed as the limitation created to the utility model, all to be done according to the utility model Creative Design thought
Any change is all within the protection domain that the utility model is created.
Claims (10)
1. a kind of liquid cooling structure, it is characterised in that：
Including support frame and closed plate, the one side of support frame seals cooperation provided with notch and between closed plate；
The middle part of described support frame is provided with demarcation strip, and one end of closed plate is provided with shunting bridge, one end of demarcation strip and shunting bridge
Bridge floor between seal coordinate, between the other end and support frame of demarcation strip provided with circulation port, demarcation strip and shunting bridge bridge
Space between support frame and closed plate is divided into first flow and second flow channel by face, and first flow and second flow channel are by following
Ring port serial communication；
Closed plate is connected provided with the first liquid in-out mouthful and the second liquid in-out mouthful, the second liquid in-out mouthful with second flow channel；
Shunt and drainage channel is provided with bridge, one end of drainage channel is connected in the bridge floor of shunting bridge with first flow, and drainage is led to
The other end in road and the first liquid in-out mouthful are connected.
2. liquid cooling structure according to claim 1, it is characterised in that：Shunting bridge and closed plate are integrally formed.
3. liquid cooling structure according to claim 1, it is characterised in that：Shunting bridge includes bridge post and bridge floor, bridge post and closing
Plate is integrally formed, and bridge floor is fixed on bridge post.
4. the liquid cooling structure according to claim 1,2 or 3, it is characterised in that：Support frame is integrally formed.
5. liquid cooling structure according to claim 4, it is characterised in that：Described the first liquid in-out mouthful and the second liquid in-out mouthful
It is arranged on the one end of closed plate provided with shunting bridge.
6. liquid cooling structure according to claim 5, it is characterised in that：Drainage channel is located in the opening of shunting bridge bridge floor and divided
Flow on bridge and the common axis of demarcation strip.
7. liquid cooling structure according to claim 6, it is characterised in that：Support frame is provided with cooling notch, and cooling notch can
Ribbon supply has the radiating element insertion of radiating toothing.
8. liquid cooling structure according to claim 5, it is characterised in that：Described the second liquid in-out mouthful is arranged on closed plate
On axis.
9. liquid cooling structure according to claim 8, it is characterised in that：Closed plate is provided with cooling notch, and cooling notch can
Ribbon supply has the radiating element insertion of radiating toothing.
10. the liquid cooling structure according to any one in claims 1 to 3 or 5 to 9, it is characterised in that：Support frame is provided with
Technique post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621483836.2U CN206471325U (en) | 2016-12-30 | 2016-12-30 | Liquid cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621483836.2U CN206471325U (en) | 2016-12-30 | 2016-12-30 | Liquid cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206471325U true CN206471325U (en) | 2017-09-05 |
Family
ID=59712071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621483836.2U Expired - Fee Related CN206471325U (en) | 2016-12-30 | 2016-12-30 | Liquid cooling structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN206471325U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109152286A (en) * | 2018-08-29 | 2019-01-04 | 南京航空航天大学 | Aero dynamo starter controller enclosed liquid cooling apparatus and liquid cooling method |
-
2016
- 2016-12-30 CN CN201621483836.2U patent/CN206471325U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109152286A (en) * | 2018-08-29 | 2019-01-04 | 南京航空航天大学 | Aero dynamo starter controller enclosed liquid cooling apparatus and liquid cooling method |
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| CP03 | Change of name, title or address |
Address after: 211806 Jiangsu province Nanjing city Pukou District Qiaolin Street 29 step road 12 -156 Patentee after: Nanjing Electronic Technology Co. Ltd. Ansett Lai Address before: 300304 Tianjin District of Dongli City Huaming Road No. 22 building 9-2 Patentee before: Tianjin Anjie Li electronic technology limited liability company |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170905 Termination date: 20181230 |