CN110518814A - A kind of two-sided cooling structure for vehicle-mounted inverter - Google Patents
A kind of two-sided cooling structure for vehicle-mounted inverter Download PDFInfo
- Publication number
- CN110518814A CN110518814A CN201910873590.1A CN201910873590A CN110518814A CN 110518814 A CN110518814 A CN 110518814A CN 201910873590 A CN201910873590 A CN 201910873590A CN 110518814 A CN110518814 A CN 110518814A
- Authority
- CN
- China
- Prior art keywords
- heat
- sided cooling
- conducting plate
- power module
- inverter case
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- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/209—Heat transfer by conduction from internal heat source to heat radiating structure
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20927—Liquid coolant without phase change
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses a kind of two-sided cooling structures for vehicle-mounted inverter, including inverter case and two-sided cooling duct power module, water channel is offered inside the inverter case, the two-sided cooling duct power module is connected to inverter case surface, heat-conducting plate has been bolted in the inverter case upper end other side, the heat-conducting plate is bending structure, the heat-conducting plate other end is connected to two-sided cooling duct power module upper end, and the heat-conducting plate other end equally passes through bolt and connect with inverter case side wall, the two-sided cooling duct power module upper surface is bonded with heat-conducting interface material, the present invention improves on the basis of former single side water-cooling structure, water channel is implemented on casing, it does not need individually to arrange heat dissipation channel for other heating devices, inherit former single side water-cooling structure, technology maturation, it can By property height, an only runner cavity greatly reduces because of connectivity structure bring local pressure loss.
Description
Technical field
The present invention relates to vehicle-mounted inverter technical field, specially a kind of two-sided cooling structure for vehicle-mounted inverter.
Background technique
Vehicle-mounted inverter is that DC12V direct current can be converted to AC220V alternating current identical with alternating current by one kind, for one
As electric appliance use, be a kind of convenient power supply converter for vehicle.Vehicle mounted power inverter is well received in overseas market.In
Because the popularity rate of automobile is higher, the i.e. available inverter connection battery of go out work or out on tours drives electric appliance and various for foreign countries
Tool work.
As the increase of vehicle-mounted inverter power density dramatically increases power device for power device section temperature is effectively reduced
Service life, existing inverter are using the independent radiating module (being made of muti-piece heat sink) separated with casing, core mostly
Piece is fastened using pressure by boundary material, by two heat dissipation paths (top and bottom) of chip respectively with two blocks of heat sinks
Connection constitutes two heat dissipation paths.Above-mentioned two-sided water-cooling project has the disadvantage that 1, due to inverter radiating module and machine
Shell separates, other heating devices such as (DC-DC, capacitor) in cabinet cannot be radiated by transferring heat to casing,
It needs individually to arrange heat dissipation channel；2, cooling system device increases, and radiator structure is complicated, increases cooling system size, increases
Installation difficulty increases manufacturing cost and the increase of system leakage risk；3, the connection structure between heat sink, causes local pressure to damage
It loses, forms invalid pressure drop.
For this purpose, it is proposed that a kind of two-sided cooling structure for vehicle-mounted inverter solves existing in the prior art ask
Topic constructs water channel by casing, realizes the technical solution of two-sided cooling.
Summary of the invention
The purpose of the present invention is to provide a kind of two-sided cooling structures for vehicle-mounted inverter, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the invention provides the following technical scheme: a kind of two-sided cooling knot for vehicle-mounted inverter
Structure, including inverter case and two-sided cooling duct power module offer water channel inside the inverter case, described two-sided
Cooling duct power module is connected to inverter case surface, and the inverter case upper end other side, which has been bolted, leads
Hot plate, the heat-conducting plate are bending structure, and the heat-conducting plate other end is connected to two-sided cooling duct power module upper end, and institute
It states the heat-conducting plate other end and equally passes through bolt and connect with inverter case side wall, on the two-sided cooling duct power module
End face is bonded with heat-conducting interface material, and the upper heat-conducting interface material upper surface and heat-conducting plate lower end surface are in close contact, described
Two-sided cooling duct power module lower end surface is bonded with lower heat-conducting interface material, the lower heat-conducting interface material lower end and inverter
Housing exterior walls are in close contact.
Preferably, the heat-conducting plate bottom side of the wall is connect by brazing layer with inverter case, and the heat-conducting plate upper end
Bolt-through brazing layer.
Preferably, rubber plug, the rubber plug and inverter shell are threaded in the inverter case side wall watercourse through-hole
Body end face maintains an equal level.
Preferably, the upper heat-conducting interface material is identical with lower heat-conducting interface material specification, and logical with the two-sided cooling
Road power module width is equal.
Preferably, the inverter case internal water channel is overall structure, and the water channel is slightly larger than the width of heat-conducting plate.
Preferably, the two-sided cooling duct power module is equidistantly arranged in inverter case upper surface, and described double
Face cooling duct power module is located at thermally conductive crab bolt middle position.
Preferably, the heat-conducting plate is integral type bending Z-shaped structure, and the heat-conducting plate is thermal conductive metallic material.
Preferably, the inverter case end offers step side structure, and step side structure is higher than heat-conducting plate upper end
Face bolt.
Compared with prior art, the beneficial effects of the present invention are:
The present invention since existing inverter radiating module is separated with casing, other heating devices in cabinet such as (DC-DC,
Capacitor etc.) it cannot be radiated by transferring heat to casing, it needs individually to arrange heat dissipation channel；And the present invention is in former single side
It is improved on the basis of water-cooling structure, water channel is implemented on casing, does not need individually to arrange heat dissipation channel for other heating devices；
Since existing cooling system device increases, radiator structure is complicated, increases cooling system size, increases installation difficulty, increases system
This and system leakage risk is caused to increase；And the present invention inherits former single side water-cooling structure, technology maturation, high reliablity；Due to
There are a large amount of connectivity structures between existing heat sink, cause local pressure loss excessive, form invalid pressure drop；And the present invention is only
There is a runner cavity, greatly reduces because of connectivity structure bring local pressure loss.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is side structure schematic diagram of the present invention；
Fig. 3 is channel structure schematic diagram of the present invention.
In figure: 1 inverter case, 2 two-sided cooling duct power modules, 3 water channels, 4 heat-conducting plates, heat-conducting interface material on 5,
6 lower heat-conducting interface materials, 7 brazing layers, 8 rubber plugs.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution: a kind of two-sided cooling structure for vehicle-mounted inverter,
Including inverter case 1 and two-sided cooling duct power module 2, water channel 3 is offered inside inverter case 1, two-sided cooling is logical
Road power module 2 is connected to 1 surface of inverter case, and heat-conducting plate 4 has been bolted in the 1 upper end other side of inverter case,
Heat-conducting plate 4 is bending structure, and 4 other end of heat-conducting plate is connected to two-sided 2 upper end of cooling duct power module, and heat-conducting plate 4 is another
End is equally connect by bolt with 1 side wall of inverter case, and two-sided 2 upper surface of cooling duct power module is bonded with thermally conductive boundary
Plane materiel material 5, upper 5 upper surface of heat-conducting interface material and 4 lower end surface of heat-conducting plate are in close contact, under two-sided cooling duct power module 2
End face is bonded with lower heat-conducting interface material 6, and lower 6 lower end of heat-conducting interface material and 1 outer wall of inverter case are in close contact, in inversion
Increase the water channel 3 inside the two-sided cooperation of cooling duct power module 2 inverter case 1 on device shell 1, can be inverter case
1 provides two-way cooling structure, increases the heat-sinking capability of inverter case 1, and the cooperation of two-sided 2 upper end of cooling duct power module is led
Hot plate 4 is connect with 1 other side of inverter case, subordinate inverter shell 1 and the heat dissipation of two-sided cooling duct power module 2, into one
Step reinforces the heat-sinking capability of inverter case 1 and two-sided cooling duct power module 2, upper heat-conducting interface material 5, on upper thermally conductive boundary
Under plane materiel material 5 and the cooperation of lower heat-conducting interface material 6, two-sided cooling duct power module 2 and inverter case 1 and thermally conductive are reduced
The microvoid and scraggly surface that plate 4 generates when contacting, reduce thermal resistance, improve dissipating for two-sided cooling duct power module 2
Hot ability.
Refering to fig. 1,4 bottom side of the wall of heat-conducting plate is connect by brazing layer 7 with inverter case 1, and 4 upper end bolt of heat-conducting plate
Through brazing layer 7,7 mating connection heat-conducting plate 4 of brazing layer and inverter case 1, improve heat-conducting plate 4 and inverter case 1 connects
The intensity at place, and it is uniform to guarantee that heat-conducting plate 4 and 1 contact position of inverter case radiate.
Refering to fig. 1, rubber plug 8, rubber plug 8 and inverter case 1 are threaded in 1 side wall water channel of inverter case, 3 through-hole
End face maintains an equal level, and rubber plug 8 is for cooperating closing.
Refering to fig. 1, upper heat-conducting interface material 5 is identical with lower 6 specification of heat-conducting interface material, and with two-sided cooling duct power
2 width of module is equal.
Refering to Fig. 3,1 internal water channel 3 of inverter case is overall structure, and water channel 3 is slightly larger than the width of heat-conducting plate 4.
Refering to fig. 1, two-sided cooling duct power module 2 is equidistantly arranged in 1 upper surface of inverter case, and two-sided cooling
Channel power module 2 is located at 4 bolt middle position of heat-conducting plate.
Refering to fig. 1, the heat-conducting plate 4 is integral type bending Z-shaped structure, and the heat-conducting plate 4 is thermal conductive metallic material.
Referring to Fig.2,1 end of inverter case offers step side structure, and step side structure is higher than on heat-conducting plate 4
End face bolt.
Structural principle: increase two-sided cooling duct power module 2 in inverter case 1 and cooperate inside inverter case 1
Water channel 3, two-way cooling structure can be provided for inverter case 1, increase the heat-sinking capability of inverter case 1, and two-sided cold
But cooperation heat-conducting plate 4 in 2 upper end of channel power module is connect with 1 other side of inverter case, subordinate inverter shell 1 and two-sided cold
But channel power module 2 radiates, and further strengthens the heat-sinking capability of inverter case 1 and two-sided cooling duct power module 2, on
Heat-conducting interface material 5 reduces two-sided cooling duct power mould under upper heat-conducting interface material 5 and the cooperation of lower heat-conducting interface material 6
The microvoid and scraggly surface that block 2 and inverter case 1 and heat-conducting plate 4 generate when contacting, reduce thermal resistance, improve double
The thermal diffusivity ability of face cooling duct power module 2.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of two-sided cooling structure for vehicle-mounted inverter, including inverter case (1) and two-sided cooling duct power mould
Block (2), it is characterised in that: offered water channel (3) inside the inverter case (1), the two-sided cooling duct power module
(2) it is connected to inverter case (1) surface, heat-conducting plate has been bolted in inverter case (1) the upper end other side
(4), the heat-conducting plate (4) is bending structure, and heat-conducting plate (4) other end is connected to two-sided cooling duct power module (2)
Upper end, and the heat-conducting plate (4) other end equally passes through bolt and connect with inverter case (1) side wall, it is described two-sided cold
But channel power module (2) upper surface is bonded with heat-conducting interface material (5), upper heat-conducting interface material (5) upper surface with
Heat-conducting plate (4) lower end surface is in close contact, and two-sided cooling duct power module (2) lower end surface is bonded with lower heat-conducting interface material
(6), lower heat-conducting interface material (6) lower end and inverter case (1) outer wall are in close contact.
2. a kind of two-sided cooling structure for vehicle-mounted inverter according to claim 1, it is characterised in that: described thermally conductive
Plate (4) bottom side of the wall is connect by brazing layer (7) with inverter case (1), and the heat-conducting plate (4) upper end bolt-through is brazed
Layer (7).
3. a kind of two-sided cooling structure for vehicle-mounted inverter according to claim 1, it is characterised in that: the inversion
It is threaded with rubber plug (8) in device shell (1) side wall water channel (3) through-hole, the rubber plug (8) is held with inverter case (1) end face
It is flat.
4. a kind of two-sided cooling structure for vehicle-mounted inverter according to claim 1, it is characterised in that: led on described
Thermal interfacial material (5) is identical with lower heat-conducting interface material (6) specification, and with two-sided cooling duct power module (2) width
It is equal.
5. a kind of two-sided cooling structure for vehicle-mounted inverter according to claim 1, it is characterised in that: the inversion
Device shell (1) internal water channel (3) is overall structure, and the water channel (3) is slightly larger than the width of heat-conducting plate (4).
6. a kind of two-sided cooling structure for vehicle-mounted inverter according to claim 1, it is characterised in that: described two-sided
Cooling duct power module (2) is equidistantly arranged in inverter case (1) upper surface, and the two-sided cooling duct power module
(2) it is located at heat-conducting plate (4) bolt middle position.
7. a kind of two-sided cooling structure for vehicle-mounted inverter according to claim 1, it is characterised in that: described thermally conductive
Plate (4) is integral type bending Z-shaped structure, and the heat-conducting plate (4) is thermal conductive metallic material.
8. a kind of two-sided cooling structure for vehicle-mounted inverter according to claim 1, it is characterised in that: the inversion
Device shell (1) end offers step side structure, and step side structure is higher than heat-conducting plate (4) upper surface bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910873590.1A CN110518814A (en) | 2019-09-19 | 2019-09-19 | A kind of two-sided cooling structure for vehicle-mounted inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910873590.1A CN110518814A (en) | 2019-09-19 | 2019-09-19 | A kind of two-sided cooling structure for vehicle-mounted inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110518814A true CN110518814A (en) | 2019-11-29 |
Family
ID=68632423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910873590.1A Pending CN110518814A (en) | 2019-09-19 | 2019-09-19 | A kind of two-sided cooling structure for vehicle-mounted inverter |
Country Status (1)
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| CN (1) | CN110518814A (en) |
Cited By (1)
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|---|---|---|---|---|
| CN111465269A (en) * | 2020-04-14 | 2020-07-28 | 江西精骏电控技术有限公司 | Two-layer double-sided water cooling structure and junction temperature adjusting method thereof |
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Application publication date: 20191129 |
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