CN111755399B - Heat dissipation module of power module, load controller and vehicle - Google Patents
Heat dissipation module of power module, load controller and vehicle Download PDFInfo
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- CN111755399B CN111755399B CN201910242571.9A CN201910242571A CN111755399B CN 111755399 B CN111755399 B CN 111755399B CN 201910242571 A CN201910242571 A CN 201910242571A CN 111755399 B CN111755399 B CN 111755399B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
- H01L23/367—Cooling facilitated by shape of device
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/40—Mountings or securing means for detachable cooling or heating arrangements ; fixed by friction, plugs or springs
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/40—Mountings or securing means for detachable cooling or heating arrangements ; fixed by friction, plugs or springs
- H01L23/4006—Mountings or securing means for detachable cooling or heating arrangements ; fixed by friction, plugs or springs with bolts or screws
- H01L2023/4018—Mountings or securing means for detachable cooling or heating arrangements ; fixed by friction, plugs or springs with bolts or screws characterised by the type of device to be heated or cooled
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/40—Mountings or securing means for detachable cooling or heating arrangements ; fixed by friction, plugs or springs
- H01L23/4006—Mountings or securing means for detachable cooling or heating arrangements ; fixed by friction, plugs or springs with bolts or screws
- H01L2023/4075—Mechanical elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Abstract
The application provides a thermal module, load controller and vehicle of IGBT power module, thermal module includes: at least one IGBT power module, flat radiator pipe and fixed bolster, flat radiator pipe includes first flat radiator pipe and the flat radiator pipe of second, IGBT power module is located between first flat radiator pipe and the flat radiator pipe of second, the fixed bolster includes closing device and backup pad, closing device makes first flat radiator pipe, IGBT power module and the flat radiator pipe of second are fixed in the backup pad, through setting up fixed bolster fixed IGBT power module and flat radiator pipe, closing device in the fixed bolster makes adjacent flat radiator pipe be in suitable dynamics to IGBT power module's clamp force, and make flat radiator pipe and IGBT power module relatively fixed in the backup pad, the problem of the reliability weakness of electric capacity buckle has been avoided, solve power module simultaneously because the problem of gravity and the skew ideal position of exogenic action.
Description
Technical Field
The application relates to the technical field of vehicles, in particular to a heat dissipation module of a power module, a load controller and a vehicle.
Background
As shown in fig. 1 and 2, a heat dissipation module of an IGBT power module in the related art includes: fixed splint 1, IGBT module 2, flat radiator tube 3, electric capacity 4 with buckle, IGBT module 2 arranges in between two flat radiator tube 3, the coolant liquid flows the passageway in flat radiator tube 3, thereby reach and carry out two-sided radiating effect for IGBT module 2, guarantee that IGBT module 2's temperature can not be too high, fixed splint 1 supports fixed flat radiator tube, fixed splint 1 is last to leave with electric capacity 4 on detain foot complex hole, detain fixed splint 1 on electric capacity 4's buckle 41, the completion is to IGBT module 2 and flat radiator tube 3's fixed clamp tightly, wherein, buckle 41 on the electric capacity 4 is the integrative formation with electric capacity injection moulding.
Most of the weight of the heat dissipation module of the IGBT power module provided by the prior art is supported by the buckle on the capacitor, and the buckle is small and exquisite and can bear limited weight, so the prior art has the problem of low fixing reliability of the heat dissipation module; in addition, in the prior art, on one hand, when the IGBT module is placed between the two heat dissipation flat tubes, the requirement on the position is high, and the IGBT module needs to be placed at the proper position of the two heat dissipation flat tubes in a high positioning mode or placed at the proper position of the two heat dissipation flat tubes by using a clamp; on the other hand, even if the IGBT module is placed at the accurate position of the two heat dissipation flat tubes, due to the self weight and the self central action of the IGBT module, the IGBT module has the tendency of sliding downwards, and once the IGBT module is not fixedly pressed, the IGBT module can deviate or slightly touches the IGBT module to deviate in the assembling process; therefore, the prior art also has the problem that the IGBT module is easy to deviate.
Disclosure of Invention
An object of this application is to provide a thermal module, load controller and vehicle of IGBT power module to the fixed reliability who solves the thermal module that prior art exists is low and the IGBT module takes place the problem of off normal easily.
The present application is realized like this, and the first aspect of the present application provides a thermal module that looses of IGBT power module, includes:
at least one IGBT power module;
the IGBT power module is arranged between the first radiator flat tube and the second radiator flat tube;
the fixed support comprises a pressing device and a supporting plate, the pressing device enables the first radiator flat tube, the IGBT power module and the second radiator flat tube to be fixed on the supporting plate, and the clamping force of the first radiator flat tube and the second radiator flat tube on the IGBT power module is adjusted.
A second aspect of the present application provides a load controller, where the load controller includes the heat dissipation module of the IGBT power module in the first aspect, a plurality of capacitors, a box, and a busbar module, where the busbar module includes a dc busbar and an ac busbar;
the plurality of heat dissipation modules are fixedly connected with the plurality of capacitors in a one-to-one correspondence manner, and each capacitor is connected with the direct-current busbar;
the input end of each IGBT power module is connected with the direct-current busbar, and the output end of each IGBT power module is connected with the alternating-current busbar.
A third aspect of the present application provides a vehicle comprising:
a power battery pack;
a load comprising a motor;
and the load controller of the second aspect, wherein an alternating current busbar of the load controller is connected with the load, and a capacitor of the load controller is connected with the power battery pack.
An embodiment of the application provides a heat dissipation module, load controller and vehicle of IGBT power module, and the heat dissipation module includes: at least one IGBT power module; the radiator flat tube comprises a first radiator flat tube and a second radiator flat tube, the IGBT power module is positioned between the first radiator flat tube and the second radiator flat tube, the fixing support comprises a pressing device and a supporting plate, the pressing device enables the first radiator flat tube, the IGBT power module and the second radiator flat tube to be fixed on the supporting plate, the IGBT power module and the radiator flat tube are fixed by arranging the fixing support, the pressing device in the fixing support enables the clamping force of the adjacent two radiator flat tubes on the IGBT power module to be in proper force, the radiator flat tubes and the IGBT power module are relatively fixed on the supporting plate, the IGBT power module is prevented from moving, each IGBT power module is enabled to be in close contact with the corresponding two radiating fins, the radiating effect is improved, the radiating module is not integral any more, and when a part of the radiating module fails, the part of the corresponding module can be replaced, the power module and the radiator are fixed and limited in the supporting plate instead of being simply fixed on the capacitor through the bracket, so that the problem of poor reliability of the bearing of the conventional capacitor buckle is solved, and the problem that the power module deviates from an ideal position due to gravity and external force is solved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a heat dissipation module of an IGBT power module provided in the prior art;
fig. 2 is a schematic diagram of a capacitor structure of a heat dissipation module of an IGBT power module provided in the prior art;
fig. 3 is a schematic structural diagram of a heat dissipation module of an IGBT power module according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a fixing bracket in a heat dissipation module of an IGBT power module according to an embodiment of the present application;
fig. 5 is a schematic structural diagram illustrating a fixing bracket and a capacitor in a heat dissipation module of an IGBT power module according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a load controller according to a second embodiment of the present application;
fig. 7 is a schematic structural diagram of a heat dissipation module and a capacitor module of a load controller according to a second embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In order to illustrate the technical solution of the present application, the following is illustrated by specific examples:
example one
An embodiment of the present application provides a heat dissipation module of an IGBT power module, as shown in fig. 3, including:
at least one IGBT power module 11;
the radiator flat tube comprises a first radiator flat tube 13 and a second radiator flat tube 12, and the IGBT power module 11 is arranged between the first radiator flat tube 13 and the second radiator flat tube 12;
the fixed support 14, the fixed support 14 includes closing device and backup pad, and closing device makes first flat radiator pipe 13, IGBT power module 11 and the flat radiator pipe 12 of second fix in the backup pad to adjust the size of first flat radiator pipe 13 and the flat radiator pipe 12 of second to the 11 clamp force of IGBT power module.
The number of the IGBT power modules is 1 or more, for example, the number of the IGBT power modules is 3, and 3 IGBT power modules are arranged in a row and are placed side by side.
The two radiator flat tubes are arranged, each IGBT power module in the same row of IGBT power modules is clamped between two adjacent radiator flat tubes, and therefore two sides of each IGBT power module can be in contact with the radiator flat tubes, and double-sided heat dissipation is achieved.
Wherein, fixed bolster 14 includes closing device and backup pad, and the backup pad is used for placing first radiator flat tube 13, IGBT power module 11 and second radiator flat tube 12, and closing device can be including being located the fixed plate on backup pad 141 for with every IGBT power module all centre gripping between two adjacent radiator flat tubes in heat radiation module, and the size of adjustable fixed plate to IGBT power module's clamp force.
The utility model provides a heat dissipation module of IGBT power module, set up fixed bolster fixed IGBT power module and the flat pipe of radiator, the fixed bolster includes closing device and backup pad, closing device makes two adjacent flat pipe of radiator be in suitable dynamics to IGBT power module's clamp force, make flat pipe of radiator and IGBT power module relatively fixed in the backup pad, avoid IGBT power module to rock, and make every IGBT power module and two fin in close contact with correspondingly, promote the radiating effect.
Compared with the prior art, the power module and the radiator are not purely fixed on the capacitor, but are fixed and limited on the supporting plate, the problem that the fixing reliability of the radiating module is low due to the fact that the capacitor buckle is small and exquisite in the prior art is solved, and meanwhile, the problem that the power module deviates from an ideal position due to gravity and external force is solved due to the fact that the power module is clamped in a space formed by the two radiators and the supporting plate.
It should be noted that the heat dissipation module provided in this embodiment is no longer a whole, and when a part of the components fails, the components corresponding to the module can be replaced, for example, when a certain IGBT power module fails, the pressing device is adjusted to replace the IGBT power module, so that the waste rate of the product can be reduced.
As an embodiment, the pressing device in the fixing bracket 14 includes a pressing component and an adjusting component, the pressing component clamps the first flat radiator pipe 13 and the second flat radiator pipe 12, and the adjusting component is used for adjusting the force applied by the pressing component to the first flat radiator pipe 13 and the second flat radiator pipe 12 so as to adjust the magnitude of the clamping force of the first flat radiator pipe 13 and the second flat radiator pipe 12 on the IGBT power module 11.
The pressing component comprises a plurality of fixing plates, the fixing plates can clamp the first flat radiator pipe and the second flat radiator pipe in between, for example, the first flat radiator pipe and the second flat radiator pipe are positioned between two fixing plates, or the fixing plates can be alternatively arranged with the first flat radiator pipe and the second flat radiator pipe, for example, the first flat radiator pipe and the second flat radiator pipe are respectively positioned between two fixing plates of three fixing plates, the adjusting component can be arranged on the pressing plate, the adjusting component can be a locking component which is arranged on the pressing plate and the fixing plates and matched with the pressing plate to lock the fixing plates, and the force applied to the first flat radiator pipe and the second flat radiator pipe by the pressing plate can be adjusted by the adjusting component The flat pipe of second radiator and IGBT fix in the backup pad of fixed bolster, can realize simultaneously applying the regulation of the power for flat pipe of first radiator and the flat pipe of second radiator.
Further, as an embodiment, as shown in fig. 4, the pressing assembly includes a pressing plate 142, a first fixing plate 143, a second fixing plate 144, a third fixing plate 145 and a fourth fixing plate 146, the first fixing plate 143 and the second fixing plate 144 are fixed on the supporting plate 141 and are disposed opposite to each other, the third fixing plate 145 and the fourth fixing plate 146 are fixed on the supporting plate 141 and are disposed opposite to each other, the first flat heatsink tube 13 is clamped in a first limit space formed by the pressing plate 142, the first fixing plate 143 and the second fixing plate 144, and the second flat heatsink tube 12 is clamped in a limit space formed by the first fixing plate 143, the second fixing plate 144, the third fixing plate 145 and the fourth fixing plate 146.
Wherein, the pressing plate 142 is separately arranged from the supporting plate 141, the first fixing plate 143, the second fixing plate 144, the third fixing plate 145 and the fourth fixing plate 146 are fixed on the supporting plate 141, the first fixing plate 143, the second fixing plate 144, the third fixing plate 145 and the fourth fixing plate 146 may be square plates, circular plates or arc plates, the first fixing plate 143 and the second fixing plate 144 are oppositely arranged and form a certain distance, the opposite arrangement means that the side surface of the first fixing plate 143 is oppositely arranged with the side surface of the second fixing plate 144, a first limit space formed by the pressing plate 142, the first fixing plate 143 and the second fixing plate 144 is used for placing the first flat radiator tube 13, a plurality of IGBT power modules form a column which is sequentially arranged between the first fixing plate 143 and the second fixing plate 144, a second limit space formed by the first fixing plate 143, the second fixing plate 144, the third fixing plate 145 and the fourth fixing plate 146 is used for placing the second flat radiator tube 12, first flat radiator pipe 13 respectively with the second face of pressure strip 142, the first face of first fixed plate 143 and the first face of second fixed plate 144 contact, second flat radiator pipe 12 respectively with the second face of first fixed plate 143, the second face of second fixed plate 144, the first face of third fixed plate 145 and the first face of fourth fixed plate 146 contact, this embodiment makes pressure strip 142, first fixed plate 143 and second fixed plate 144 press from both sides tight first flat radiator pipe 13, make first fixed plate 143, second fixed plate 144, third fixed plate 145 and fourth fixed plate 146 press from both sides tight second flat radiator pipe 12, and then make first flat radiator pipe 13 and second flat radiator pipe 12 press from both sides tight IGBT power module, the fixing to IGBT power module has been realized.
Further, the fixing bracket further includes a first side plate 153 and a second side plate 152, the first side plate 153 and the second side plate 152 are fixed on the supporting plate 141, the first side plate 153 is respectively fixedly connected with the first fixing plate 143 and the third fixing plate 145 for supporting the first fixing plate 143 and the third fixing plate 145, the second side plate 152 is respectively fixedly connected with the second fixing plate 144 and the fourth fixing plate 146 for supporting the second fixing plate 144 and the fourth fixing plate 146, the first side plate 153, the second side plate 152, the first fixing plate 143, the third fixing plate 145 and the pressing plate 142 form a first limiting space, the first side plate 153, the second side plate 152, the first fixing plate 143, the second fixing plate 144, the third fixing plate 145 and the fourth fixing plate 146 form a second limiting space, the first side plate 153 and the second side plate 152 are separated from the pressing plate 142 to enable the pressing plate 142 to be in an active state, and the sizes of the first limiting space and the second limiting space are adjusted by adjusting the pressing plate 142, and the IGBT power module is compressed.
Further, the adjusting assembly includes at least one fixing member for cooperating with the pressing plate 142, the first fixing plate 143, the second fixing plate 144, the third fixing plate 145 and the fourth fixing plate 146 to adjust the sizes of the first and second limiting spaces.
In one embodiment, as shown in fig. 4, the fixing members are fixing bolts, and screw holes for engaging the fixing bolts are provided in the pressing plate 142, the first fixing plate 143, the second fixing plate 144, the third fixing plate 145, and the fourth fixing plate 146.
Wherein, fixing bolt includes first fixing bolt 147, second fixing bolt 148, third fixing bolt 149 and fourth fixing bolt 150, wherein, first fixing bolt 147 and second fixing bolt 148 respectively with pressure-strip 142, first fixed plate 143 and third fixed plate 145 carry out screw-thread fit, third fixing bolt 149 and fourth fixing bolt 150 respectively with pressure-strip 142, first fixed plate 143 and third fixed plate 145 carry out screw-thread fit, this embodiment sets up fixing bolt, and realize the regulation to the size of the tight IGBT power module of first radiator flat tube and second radiator flat tube clamp through adjusting fixing bolt.
Furthermore, an elastic piece is sleeved on the fixing bolt; the elastic piece is positioned between the head of the fixing bolt and the pressing plate and in at least one of the first limiting space and the second limiting space.
As an embodiment, as shown in fig. 5, the elastic element is a spring 154, the spring 154 is sleeved on the fixing bolt, and the spring 154 may be located between the head of the fixing bolt and the pressing plate 142, or located on the fixing bolt in the first limiting space, for example, located between the pressing plate 142 and the first flat radiator pipe 13, or located on the fixing bolt in the second limiting space, for example, located between the second flat radiator pipe 12 and the third fixing plate 145.
Wherein, when spring 154 can be located between fixing bolt's head and pressure strip 142, spring 154 overlaps on fixing bolt to when fixing bolt fixes pressure strip 142 with fixing bolt's head and pressure strip 142 contact, this embodiment is through setting up the spring, forms the buffering to pressure when can realizing that the pressure strip in the fixed bolster compresses tightly power module and flat pipe of radiator, protection power module and flat pipe of radiator non-deformable.
Further, as shown in fig. 4, a limit support groove 151 is further disposed on the support plate 141, and the limit support groove 151 is used for placing the IGBT power module 11 to limit the IGBT power module 11
In one embodiment, a plurality of position-limiting support grooves 151 are arranged on the support plate, the plurality of position-limiting support grooves 151 are arranged between the first fixing plate 143 and the second fixing plate 144 in sequence, and each position-limiting support groove 151 is used for limiting one IGBT power module 11.
Wherein, a plurality of spacing support grooves 151 and a plurality of IGBT power module 11 one-to-one, a IGBT power module 11 is placed to a spacing support groove, a plurality of spacing support grooves 151 arrange in proper order and form a row between first fixed plate 143 and second fixed plate 144, when an IGBT power module is placed to every support groove, make a plurality of IGBT power modules form a row and arrange and set up between first fixed plate 143 and second fixed plate 144, this embodiment is through setting up a plurality of spacing support grooves, it is fixed to make spacing support groove realize spacing support to IGBT power module, avoid leading to the skew current position of IGBT power module because the gravity of IGBT power module itself and the effect of external force to IGBT power module.
Further, as shown in fig. 3 and 4, a hole through which a cooling pipe passes is formed on the pressing plate 142, and the first fixing plate 143, the second fixing plate 144, the third fixing plate 145, and the fourth fixing plate 146 are provided with a supporting surface for supporting the cooling pipe or a hole through which the cooling pipe passes.
The flat tubes of the first radiator and the second radiator are internally provided with a pipeline, the pipeline is connected with a cooling pipe, the pressing plate 142 is provided with a hole for the cooling pipe to pass through, when the first fixing plate 143, the second fixing plate 144, the third fixing plate 145 and the fourth fixing plate 146 are square plates or circular plates, the first fixing plate 143, the second fixing plate 144, the third fixing plate 145 and the fourth fixing plate 146 are provided with a hole for the cooling pipe to pass through, when the first fixing plate 143, the second fixing plate 144, the third fixing plate 145 and the fourth fixing plate 146 are arc-shaped plates, the first fixing plate 143, the second fixing plate 144, the third fixing plate 145 and the fourth fixing plate 146 are provided with a supporting surface for bearing the cooling pipe, and the supporting surface can be arc-shaped or L-shaped.
Further, as shown in fig. 3 and 4, the pressing plate 142 is provided with a first circular hole and a second circular hole, the first fixing plate 143, the second fixing plate 144, the third fixing plate 145 and the fourth fixing plate 146 are provided with an inner circular arc surface, the heat dissipation module further comprises a water inlet pipe 161 and a water outlet pipe 162, the water inlet pipe 161 penetrates through the circular hole and communicates with a water inlet of the first flat radiator pipe 13 and a water inlet of the second flat radiator pipe 12, the water inlet pipe 161 is located on the inner circular arc surface of the first fixing plate 143 and the third fixing plate 145, and the water outlet pipe 162 is located on the inner circular arc surface of the second fixing plate 144 and the fourth fixing plate 146.
Wherein, all be equipped with the water course in first flat radiator tube 13 and the flat 12 pipe of second radiator, the water inlet and the delivery port of water course are connected with inlet tube 161 and outlet pipe 162 respectively, and flat 13 pipe of first radiator and the flat 12 pipe of second radiator cool off the heat dissipation through the coolant liquid in the water course to power module, set up interior arc surface on first fixed plate, second fixed plate, third fixed plate and fourth fixed plate in this embodiment to realize supporting inlet tube and outlet pipe.
Further, as an embodiment, as shown in fig. 5, the heat dissipation module further includes a capacitor module 17, the capacitor module includes a fixing boss 171, and the adjusting component fixes the fixing bracket 14 on the fixing boss 171 of the capacitor module.
Wherein, this embodiment fixes fixed bolster 14 on capacitor module 17's fixed boss 171 through fixing bolt, and the effect that the gravity was no longer undertaken to the electric capacity supports only is used for spacing fixed action, has avoided the problem that the reliability of the bearing of electric capacity buckle is weak among the prior art.
Example two
A second embodiment of the present application provides a load controller, as shown in fig. 6 and 7, the load controller includes a heat dissipation module of the IGBT power module provided in the first embodiment, a plurality of capacitor modules 40, a box 100, and a busbar module, where the busbar module includes a dc busbar 20 and an ac busbar;
the plurality of heat dissipation modules are fixedly connected with the plurality of capacitor modules 40 in a one-to-one correspondence manner, and each capacitor module 40 is connected with a direct-current bus;
the input end of each IGBT is connected with a direct current busbar, and the output end of each IGBT is connected with an alternating current busbar.
The box 100 is a bearing element of the load controller, the heat dissipation module, the plurality of capacitor modules and the busbar module are installed in the box, the box plays roles of dust prevention, collision prevention and sealing on the components, and the components which need to be connected with external components, such as the capacitor modules, the busbar module and the heat dissipation module, can partially extend out of the box and are convenient to connect with the external components.
The capacitor module 40 is used for storing energy and filtering, the capacitor module 40 includes a fixing boss, the adjusting component fixes the fixing support 14 on the fixing boss of the capacitor module, the capacitor in the capacitor module is connected with the dc bus bar, so that the capacitor is connected between an external dc power supply (such as a power battery pack) and the dc bus bar, each capacitor module corresponds to one heat dissipation module and is connected with an IGBT power module in the heat dissipation module, and the output positive terminal 23 and the output negative terminal 24 of the capacitor module 40 are respectively connected with the positive input terminal 25 and the negative input terminal 26 of the IGBT power module.
The busbar module comprises a direct-current busbar 20 and an alternating-current busbar, the alternating-current busbar comprises a driving alternating-current busbar 21 and a load alternating-current busbar 22, the direct-current busbar 20 is connected with a direct-current input interface 28, the direct-current input interface 28 is connected with an external direct-current power supply, the direct-current busbar 20 conveys externally input direct current to a capacitor, the capacitor is conveyed to an IGBT power module again, the capacitor is output to the alternating-current busbar through an alternating-current output terminal 27 after being inverted by the IGBT power module, the driving alternating-current busbar 21 and the load alternating-current busbar 22 are respectively connected with a main drive output interface 30 and a load output interface 31, the driving alternating-current busbar 21 supplies inverted alternating current to a main drive load through the main drive output interface 30, and the load alternating-current busbar 22 supplies inverted alternating current to a BSG load (engine starting motor) through the load output interface 31.
The load controller includes a water inlet pipe 29 and a water outlet pipe 32, each radiator flat pipe has a heat radiation water channel therein, the water inlet pipe 29 is communicated with an inlet of each heat radiation water channel, and the water outlet pipe 32 is communicated with an outlet of each heat radiation water channel.
The water inlet pipe 29 and the water outlet pipe 32 are further provided with hose fixing clips, and the water inlet pipe and the water outlet pipe of two adjacent heat dissipation modules are connected together through the hose fixing clips.
The application load controller assembly steps: the capacitor module 15 is fixed on the box 100, the fixing support 14 is placed at a corresponding proper position, a first radiator flat tube 13 is placed in the fixing support 14 in a first limit space formed by the first side plate 153, the second side plate 152, the first fixing plate 143 and the third fixing plate 145, a plurality of IGBT power modules are sequentially arranged in a limit support groove on the support plate 141 between the first fixing plate 143 and the second fixing plate 144 in the fixing support 14, a second radiator flat tube is placed in a second limit space formed by the first side plate 153, the second side plate 152, the first fixing plate 143, the second fixing plate 144, the third fixing plate 145 and the fourth fixing plate 146, the pressing plate 142 is placed on one side of the module fixing support 14, which is in contact with the first radiator flat tube, and the fixing bolt sleeved with the spring is screwed on the pressing plate 142.
This application supports and is spacing IGBT power module and radiator flat tube through using the fixed bolster to fix the fixed bolster on the capacitor module through the retaining member, the assembly is not only simplified to this mode, need not anchor clamps installation, and can be more accurate with IGBT power module location on suitable position, make IGBT power module not receive external force and self gravity to disturb and lead to IGBT power module skew original position, make whole heat dissipation module also more stable and reliable.
The working principle of the electric control main drive system is as follows: external direct current is input into the capacitor module 15 through the direct current input interface 28 for energy storage filtering, an output positive terminal 23 and an output negative terminal 24 of the capacitor module 15 are electrically connected with a positive input terminal 25 and a negative input terminal 26 of the IGBT power module respectively, so that the direct current is input into the IGBT power module for inversion, alternating current is output through an alternating current output terminal 27 of the IGBT power module, the alternating current output terminal of the IGBT power module is electrically connected with the driving alternating current busbar 21, the alternating current is output onto the driving alternating current busbar 21, the driving alternating current busbar 21 is electrically connected with the main driving output interface to supply a main driving load, for example, a driving plate for controlling the IGBT power module is arranged on the back of the electric control box, and the load alternating current busbar 22 supplies the inverted alternating current to a BSG load through the load output interface 31.
The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (12)
1. A power module heat dissipation module, comprising:
at least one IGBT power module;
the IGBT power module is arranged between the first radiator flat tube and the second radiator flat tube;
the fixing support comprises a pressing device and a supporting plate, the pressing device enables the first radiator flat tube, the IGBT power module and the second radiator flat tube to be fixed on the supporting plate, and the clamping force of the first radiator flat tube and the second radiator flat tube on the IGBT power module is adjusted;
the pressing device comprises a pressing component and an adjusting component, the pressing component is used for clamping the first radiator flat tube and the second radiator flat tube, and the adjusting component is used for adjusting the force applied to the first radiator flat tube and the second radiator flat tube by the pressing component so as to adjust the clamping force of the first radiator flat tube and the second radiator flat tube on the IGBT power module;
the compressing assembly comprises a compressing plate, a first fixing plate, a second fixing plate, a third fixing plate and a fourth fixing plate, the first fixing plate and the second fixing plate are fixed in the supporting plate and are arranged oppositely, the third fixing plate and the fourth fixing plate are fixed in the supporting plate and are arranged oppositely, the first radiator flat tube is clamped in a first limiting space formed by the compressing plate, the first fixing plate and the second fixing plate, and the second radiator flat tube is clamped in a second limiting space formed by the first fixing plate, the second fixing plate, the third fixing plate and the fourth fixing plate.
2. The heat dissipation module of claim 1, wherein the compression device comprises at least two retaining plates, and the retaining plates clamp the first flat heat sink tube and the second flat heat sink tube.
3. The heat dissipation module as claimed in claim 1, wherein the adjustment assembly comprises at least one fixing member, and the fixing member is configured to cooperate with the pressing plate, the first fixing plate, the second fixing plate, the third fixing plate, and the fourth fixing plate to adjust the size of the first spacing space and the second spacing space.
4. The heat dissipation module of claim 3, wherein the fixing member is a fixing bolt, and an elastic member is further sleeved on the fixing bolt;
the elastic member is located between the head of the fixing bolt and the pressing plate, and in at least one of the first limit space and the second limit space.
5. The thermal module of claim 1, wherein the supporting plate further comprises a limiting supporting groove, and the limiting supporting groove is used for placing the IGBT power module to limit the IGBT power module.
6. The heat dissipation module of claim 5, wherein a plurality of position-limiting support grooves are arranged on the support plate, and each position-limiting support groove is used for limiting one IGBT power module.
7. The heat dissipation module of claim 2, wherein the compression plate has a hole for a cooling pipe to pass through, and the first fixing plate, the second fixing plate, the third fixing plate, and the fourth fixing plate have a supporting surface for supporting the cooling pipe or a hole for a cooling pipe to pass through.
8. The heat dissipation module according to claim 7, wherein the pressure pad has a first circular hole and a second circular hole, the first fixing plate, the second fixing plate, the third fixing plate and the fourth fixing plate have inner circular arc surfaces, the heat dissipation module further comprises a water inlet pipe and a water outlet pipe, the water inlet pipe passes through the first circular hole and is communicated with a water inlet of the first flat radiator pipe and a water inlet of the second flat radiator pipe, the water outlet pipe passes through the second circular hole and is communicated with a water outlet of the first flat radiator pipe and a water outlet of the second flat radiator pipe, the water inlet pipe is located on the inner circular arc surfaces of the first fixing plate and the third fixing plate, and the water outlet pipe is located on the inner circular arc surfaces of the second fixing plate and the fourth fixing plate.
9. The heat dissipation module of claim 1, further comprising a capacitor module, wherein the capacitor module comprises a fixing boss, and the adjustment assembly fixes the fixing bracket on the fixing boss of the capacitor module.
10. A load controller, comprising a box body, a heat dissipation module of the IGBT power module according to any one of claims 1 to 9 disposed in the box body, a plurality of capacitor modules, and a busbar module, wherein the busbar module comprises a dc busbar and an ac busbar;
the plurality of heat dissipation modules are fixedly connected with the plurality of capacitor modules in a one-to-one correspondence manner, and the capacitor modules are connected with the direct-current busbar;
the input end of each IGBT power module is connected with the direct-current busbar, and the output end of each IGBT power module is connected with the alternating-current busbar.
11. The load controller according to claim 10, wherein the load controller comprises a water inlet pipe and a water outlet pipe, each of the flat radiator pipes has a heat radiation water channel therein, the water inlet pipe is communicated with an inlet of each of the heat radiation water channels, and the water outlet pipe is communicated with an outlet of each of the heat radiation water channels.
12. A vehicle, characterized by comprising:
a power battery pack;
a load comprising a motor;
the load controller according to claim 10 or 11, wherein an ac busbar of the load controller is connected to the load, and a capacitor module of the load controller is connected to the power battery pack.
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| CN201910242571.9A CN111755399B (en) | 2019-03-28 | 2019-03-28 | Heat dissipation module of power module, load controller and vehicle |
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| CN201910242571.9A CN111755399B (en) | 2019-03-28 | 2019-03-28 | Heat dissipation module of power module, load controller and vehicle |
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| CN111755399B true CN111755399B (en) | 2022-06-21 |
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| CN113206053B (en) * | 2021-04-28 | 2023-10-31 | 北京国家新能源汽车技术创新中心有限公司 | Heat abstractor, power module and vehicle |
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