CN109842305A - Power cell, electric machine controller, power assembly and electric vehicle - Google Patents
Power cell, electric machine controller, power assembly and electric vehicle Download PDFInfo
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- CN109842305A CN109842305A CN201910278112.6A CN201910278112A CN109842305A CN 109842305 A CN109842305 A CN 109842305A CN 201910278112 A CN201910278112 A CN 201910278112A CN 109842305 A CN109842305 A CN 109842305A
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- 238000001816 cooling Methods 0.000 claims abstract description 86
- 239000000758 substrate Substances 0.000 claims abstract description 85
- 239000003990 capacitor Substances 0.000 claims abstract description 48
- 238000003466 welding Methods 0.000 abstract description 20
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000010992 reflux Methods 0.000 abstract description 6
- 238000005476 soldering Methods 0.000 abstract description 5
- 210000004027 cell Anatomy 0.000 description 23
- 238000007789 sealing Methods 0.000 description 20
- 230000008878 coupling Effects 0.000 description 16
- 238000010168 coupling process Methods 0.000 description 16
- 238000005859 coupling reaction Methods 0.000 description 16
- 239000007788 liquid Substances 0.000 description 14
- 238000005266 casting Methods 0.000 description 13
- 239000003292 glue Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 13
- 238000003780 insertion Methods 0.000 description 12
- 230000037431 insertion Effects 0.000 description 12
- 238000002955 isolation Methods 0.000 description 12
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000005457 optimization Methods 0.000 description 9
- 230000005611 electricity Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 8
- 230000001681 protective effect Effects 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 7
- 210000002421 cell wall Anatomy 0.000 description 4
- 239000002826 coolant Substances 0.000 description 4
- 238000011049 filling Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000003447 ipsilateral effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- 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
- Y02T10/64—Electric machine technologies in electromobility
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- Inverter Devices (AREA)
Abstract
The present invention provides a kind of power cell, electric machine controller, power assembly and electric vehicle, including substrate, capacitance component, power tube assembly and hall sensor component, power cell further includes connection framework and clamping piece component, connection framework is provided with cooling bridge and outline border, cooling bridge and outline border surround capacitor holding tank, cooling duct is provided in cooling bridge, connection framework is connected on substrate, clamping piece component abuts against multiple power tubes respectively on the two sides of cooling bridge the clamping of power tube assembly, capacitance component includes multiple capacitors, capacitor is arranged in capacitor holding tank, power tube assembly is between capacitance component and hall sensor component.By being provided with connection framework on substrate, cooling bridge is used to carry out power tube thermally conductive and fixed, and capacitor setting is subjected to corresponding position in capacitor holding tank and is fixed, all elements on substrate are disposably welded using reflux wave-soldering, can be conducive to improve welding quality and production efficiency.
Description
Technical field
The present invention relates to new-energy automobile field more particularly to a kind of power cell, electric machine controller, power assembly and electricity
Motor-car.
Background technique
Electric vehicle has the characteristics that environmental protection, pollution are small, in tourist attraction etc. to environment because burns gasoline does not generate power for it
More demanding place is widely used.Existing electric vehicle is equipped with an AC motor control, is used for battery
The DC power supply of output is converted into three-phase alternating-current supply and driving motor rotation.
Power cell in electric machine controller receives the direct current of battery output, and DC inverter is converted into exchanging
Electricity is exported to motor, therefore each power module corresponds to a phase of three-phase motor, for exporting U, V, W three-phase electricity to motor
A phase power supply in source.Each power module set there are two receive DC power supply terminal, be respectively used to receive cathode power supply and
Negative power supply, and it is equipped with a current output terminal, to a phase output current signal of motor.Also, two DC power supply terminals
Need to be arranged controllable switch device such as power tube and capacitor between son and current output terminal, power tube can be thyristor or IGBT
Deng for controlling direct current, power tube can generate waste heat at work, therefore generally require and carry out at heat dissipation to power tube
Reason.
Since there are many components for setting on power cell, therefore for the circuit layout, current direction, assembly of power cell
Technique and production efficiency propose the mounting arrangements and protective performance of higher requirement and power cell in electric machine controller
It is even more important.
With electric vehicle power assembly it is integrated, when motor and electric machine controller are integrated, need to consider motor with
Connection structure and relevant layout optimization between electric machine controller, need the cooling by the cooling of motor and electric machine controller
Consider together and the preferred arrangement of relevant electric connection structure, influence of the external environment to power assembly can be avoided.
Summary of the invention
The first object of the present invention is to provide a kind of power cell of optimised devices layout raising production efficiency.
The second object of the present invention is to provide a kind of electric machine controller for being equipped with above-mentioned power cell.
The third object of the present invention is to provide a kind of power assembly for being equipped with above-mentioned electric machine controller.
The fourth object of the present invention is to provide a kind of electric vehicle for being equipped with above-mentioned power assembly.
In order to realize that the first object of the present invention, the present invention provide a kind of power cell, including substrate, capacitance component, function
Rate tube assembly and hall sensor component, capacitance component, power tube assembly and hall sensor component are welded on substrate, function
Rate unit further includes connection framework and clamping piece component, and connection framework is provided with cooling bridge and outline border, and cooling bridge and outline border surround
Capacitor holding tank cools down in bridge and is provided with cooling duct, and connection framework is fixedly connected on substrate, and power tube assembly includes multiple
Power tube, clamping piece component abut against multiple power tubes respectively on the two sides of cooling bridge the clamping of power tube assembly, capacitance group
Part includes multiple capacitors, and capacitor is arranged in capacitor holding tank, and power tube assembly is located at capacitance component and hall sensor component
Between.
By above scheme as it can be seen that by being provided with connection framework on substrate, connection framework is provided with cooling bridge and outline border,
Cooling bridge is used to carry out thermally conductive to power tube and fix, and capacitor setting is carried out corresponding position in capacitor holding tank and is consolidated
Fixed, after then connection framework is fixed on substrate, the position of power tube and capacitor is all relatively fixed, then using reflux wave
All elements on substrate are disposably welded in peak weldering, can be conducive to improve the good of welding quality, production efficiency and power cell
Product rate.
Further scheme is that multiple power tubes are separately positioned on two of the width direction based on cooling bridge extending direction
The power tube of side, the first side is located in capacitor holding tank, and the power tube of the second side is located at outside capacitor holding tank, and Hall passes
Sensor component is located at outside capacitor holding tank；Capacitance component, power tube assembly and Hall sensor are arranged in the width direction.
Therefore the cooling layout based on cooling bridge, arrange that the main devices on substrate in the width direction, also by
The circuit layout of optimization realizes the optimization of current direction, reduces circuit interference.
Further scheme is that clamping piece component includes multiple clamping pieces, power tube grip of the clamping piece to both sides.
Therefore steadily power tube can be clamped by the clamping of clamping piece, be conducive to improve the steady of welding
It is qualitative.
Further scheme is that cooling bridge is respectively arranged with input port and delivery outlet on the both ends of extending direction,
Input port and delivery outlet are connected to cooling duct respectively, and the opening direction of input port and the opening direction of delivery outlet are backwards to base
Plate.
Therefore by by the position optimization of input port and delivery outlet, i.e., backwards to the arrangement of substrate, then optimizing water cooling
The layout of pipeline also facilitates the integrated water cooling layout of electric machine controller and power assembly.
Further scheme is the domed setting of outline border, the capacitor and outline border clearance fit positioned at outside.
Further scheme is that outline border is provided with support column, and support column is connected between outline border and substrate.
Further scheme is, cooling bridge is provided with substrate connecting portion in the end face towards substrate, substrate connecting portion with
Substrate connection.
Therefore more effectively capacitor can be fixed using the outline border of arch, while utilizing support column
Frame high arrangement, and stablize installation using cooling pars basilaris pontis, erecting and welding stability can be improved.
In order to realize that the second object of the present invention, the present invention provide a kind of electric machine controller, including shell, electric machine controller
The power cell such as above scheme is provided in shell.
In order to realize that the third object of the present invention, the present invention provide a kind of power assembly, including motor and such as above scheme
Electric machine controller, electric machine controller is connected to motor.
In order to realize that the fourth object of the present invention, the present invention provide a kind of electric vehicle, the power including such as above scheme is total
At.
By above scheme as it can be seen that by being provided with connection framework on substrate, connection framework is provided with cooling bridge and outline border,
Cooling bridge is used to carry out thermally conductive to power tube and fix, and capacitor setting is carried out corresponding position in capacitor holding tank and is consolidated
Fixed, after then connection framework is fixed on substrate, the position of power tube and capacitor is all relatively fixed, then using reflux wave
All elements on substrate are disposably welded in peak weldering, can be conducive to improve the good of welding quality, production efficiency and power cell
Product rate is also electric machine controller, power assembly and electric vehicle provide a kind of stable power output.
Detailed description of the invention
Fig. 1 is the structure chart of power assembly embodiment of the present invention.
Fig. 2 is structure chart of the power assembly embodiment of the present invention under another visual angle.
Fig. 3 is the structure chart of electric machine controller embodiment of the present invention.
Fig. 4 is the structural exploded view of electric machine controller embodiment of the present invention.
Fig. 5 is structural exploded view of the electric machine controller embodiment of the present invention under another visual angle.
Fig. 6 is the structure chart of power cell embodiment of the present invention.
Fig. 7 is the cross-sectional view of power cell embodiment of the present invention in the width direction.
Fig. 8 is that bridge is cooled down in power cell embodiment of the present invention along the cross-sectional view of extending direction.
Fig. 9 is the structural exploded view of the cooling bridge embodiment of the present invention.
Figure 10 is the cross-sectional view of electric machine controller embodiment of the present invention in the width direction.
Figure 11 is the cross-sectional view for the opening that electric machine controller embodiment of the present invention is located at base.
Figure 12 is structure chart of the electric machine controller embodiment of the present invention after omitting lid and inner casing.
Figure 13 is structure chart of the electric machine controller embodiment of the present invention after omitting lid, substrate and inner casing.
Figure 14 is the structure chart of power source connecting unit embodiment of the present invention.
Figure 15 is structure chart of the power source connecting unit embodiment of the present invention under another visual angle.
Figure 16 is the structural decomposition diagram of power source connecting unit embodiment of the present invention.
The invention will be further described with reference to the accompanying drawings and embodiments.
Specific embodiment
Referring to figs. 1 to Fig. 5, power assembly includes electric machine controller 2 and motor 1, and electric machine controller 2 is fixedly connected in electricity
In the outer radial periphery of machine 1, electric machine controller 2 exports three phase mains to motor 1, and then driving motor 1 rotates.
Electric machine controller 2 includes shell, and shell includes base 23 and lid 21, and base 23 and lid 21 surround closed device
Part space, electric machine controller 2 are provided with power cell in shell, and power cell includes substrate 24, capacitance component, power tube group
Part, hall sensor component, connection framework 25, clamping piece component and inner casing 22, capacitance component include multiple electricity being arranged side by side
Hold 241, power tube assembly includes multiple power tubes 242 being arranged side by side, and the Conventional power devices such as IGBT can be used in power tube 242
Or switching device, hall sensor component include three Hall sensors 244, multiple capacitors 241, multiple power tubes 243 and three
A 244 component of Hall sensor welds on substrate 24.
Referring to Fig. 6 to Figure 10, connection framework 25 is provided with cooling bridge 26 and outline border 27, the domed arrangement of outline border 27, specifically
Ground, outline border 27 joins end to end in three sections of straight panels, and is successively arranged mutual vertically, and two ends of outline border 27 and cooling bridge 26 connect
It connects, then cools down bridge 26 and outline border 27 surrounds capacitor holding tank 273, be equably provided on outline border 27 towards the extension of substrate 24
Support column 271, and be also provided with housing installation portion 272 on outline border 27, housing installation portion 272 can be used mounting hole or other
Installation and positioning structure setting.
Cooling bridge 26 includes pedestal and capping 28, and outline border 27 is connect with the both ends of the extending direction of pedestal respectively, in pedestal
It is provided with the cooling duct 261 extended transversely, cooling duct 261 is the cooling delivery chute dug, and cooling duct 261 is extending
Input port 263 and delivery outlet 262 are respectively arranged on the both ends in direction, cooling duct 261 is arranged in the side of extending direction
There is technique mouth 268, technique mouth 268 extends to delivery outlet 262 from input port 263 along extending direction, and pedestal is in cooling duct 261
The inner end wall of 268 opposite side of technique mouth is provided with multiple heating columns 264, multiple heating columns 264 are equably arranged side by side,
And multiple heating columns 264 are arranged along extending direction, capping 28 is also in extending direction, and capping 28 is also provided with towards the end face of pedestal
There is heating column 281.Pedestal is provided with positioning step 269 in the periphery of technique mouth 268, and positioning step 269 extends in strip annular,
28 lid of capping closes technique mouth 268, and heating column 281 stretches in cooling duct 261, capping 28 and 269 friction welding of positioning step,
Then 28 closed process mouths 268 are covered.
Input port 263 and delivery outlet 262 are located on the same side of pedestal, the opening direction and delivery outlet 262 of input port 263
Opening direction be arranged towards setting in the same direction, and facing away from substrate 24 and 22 ground of inner casing, be additionally provided with multiple substrate connecting portions on pedestal
267, multiple substrate connecting portions 267 are distributed along extending direction, and to be located at pedestal opposite substrate connecting portion 267 and input port 263 two
On side, substrate connecting portion 267 and delivery outlet 262 are located on the opposite two sides of pedestal, and capping 28 is located at substrate connecting portion 267 and defeated
Between entrance 263.Connection framework 25 is also set up there are four housing coupling part 272, and two of them housing coupling part 272 is arranged outside
On shell 27, other two housing coupling part 272 is arranged on the base at the both ends of extending direction.
When manufacturing power cell, first circuit devcie is welded on substrate, is first first fixed on connection framework
On substrate, i.e., the corresponding position of substrate 24 is passed through by connector and connect with substrate connecting portion 267, and the support column of periphery
Across the corresponding location hole in 24 periphery of substrate.
Then power tube is inserted to substrate 24, two rows of power tubes 242 are separately positioned on based on cooling 26 side of extension of bridge
To width direction both sides, power tube 242 in addition to can directly with cooling bridge 26 it is adjacent, can also be as shown in this embodiment
Power tube 242 connect by ceramic plate or other thermally conductive sheets with bridge 26 is cooled down, the power tube of the first side is located at capacitor
In holding tank 273, the power tube of the second side is located at outside capacitor holding tank 273, and clamping piece component includes three clamping pieces 243,
Clamping piece 243 clamps both sides power tube 243, is connected and fixed multiple power tubes with cooling bridge 26 respectively, pedestal is also set up
There are three positioning column 265, three positioning columns 265 are located at the ipsilateral of input port 263 and delivery outlet 262, and positioned at 263 He of input port
Between delivery outlet 262, clamping piece 243 is provided with the clamping end for clamping power pipe in two sides, and between clamping end in
Portion is provided with location hole, and location hole and the cooperation of positioning column 265 position, and three clamping pieces 243 are respectively positioned on input port 263 and output
Between mouth 262.
Then multiple capacitors 241 are inserted onto substrate 24, capacitor 241 is arranged in capacitor holding tank 273, is located at outside
Capacitor and 27 clearance fit of outline border, outline border 27 is located at the top of substrate 24 and outside the inner casing 23, due to outline border 27 and substrate
There is aerial distance, therefore outline border 27 can carry out key mapping to capacitor well between 24.With by three Hall sensors
244 fill on substrate 24 in a socket, and three-phase dc terminal 245 (see Figure 11) is each passed through a Hall sensor
It is inserted into after 244 in the welding position of substrate 24, Hall sensor 244 and three-phase dc terminal 245 are respectively positioned on capacitor holding tank 273
Outside, the middle part package of three-phase dc terminal 245 is provided with sealing shroud 246, and three-phase dc terminal 245 includes three conductive sheets, and
It is arranged in bending, corresponding positioning is realized by the cooperation of the end face of bending part and Hall sensor 244, and by two direct current
In the inserting to substrate 24 of input terminal 247, two DC input terminals 247 are located at the side far from cooling bridge 26 of outline border 27
Place, and will be in the associated circuit components inserting to substrate of circuit.
Then, the device on the substrate 24 and substrate 24 is subjected to wave crest soldering/refluxing soldering and disposably welds completion, substrate 24
It is welded with above-mentioned each device in corresponding welding position.
Finally, carrying out installation and the filling of casting glue to inner casing 23, inner casing 23 is connected to substrate 24 relative to circuit
On the side of device, that is, it is located on the side of welding position, so that substrate 24 is between circuit devcie and inner casing 23.Inner casing
22 are provided with placing groove, and substrate 24 is located in placing groove, and the periphery of placing groove is provided with cell wall 223, and cell wall 223 is apart from placement
The height of the bottom wall of slot is greater than the height of bottom wall of the substrate 24 apart from placing groove, and inner casing 22 is provided with multiple connecting holes 221 and more
The position of a connecting hole 222, multiple connecting holes 221 is opposite with the position of support column 271, and the position of connecting hole 222 and substrate connect
Socket part 267 is opposite, and support column 271 and substrate connecting portion 267 are each passed through the location hole of substrate 24, then pass through multiple connectors point
It is not fixedly connected with support column 271 and substrate connecting portion 267, connection framework 25, substrate 24, circuit devcie and inner casing can be completed
22 position is fixed.Then, casting glue is filled in the placing groove of inner casing 23, it can be in vacuum environment when filling casting glue
Lower progress, to prevent the generation of bubble, casting glue wraps up the welding position of substrate 24, while the filling of adjustable casting glue is high
Degree, so that casting glue also wraps up the pin of capacitor 241, the pin of power tube 243, Hall sensor 244 and each electric current respectively
The pin of terminal.For the arrangement of clear expression device in figure, the displaying of casting glue, the maximum packed height of casting glue is omitted
It can be the height of cell wall.
Referring to Fig.1 1, and Fig. 1 to Fig. 3 is combined, the periphery of motor 1 is provided with liquid cooling channel 11, the cloth in motor liquid cooling channel
The mode of setting can then be repeated no more with reference to structure disclosed in CN108696040A, this case, liquid cooling channel 11 be provided with entrance and
Outlet 13, electric machine controller 2 and the shell of motor 1 are fixed, and the bottom wall of the base 23 of electric machine controller 2 is provided with the first opening
201 and second opening 202, the first opening 201 and the input port 263 of cooling bridge 26 be connected, the second opening 202 and cooling bridge
26 delivery outlet 262 is connected, and annular groove, the first sealing ring 203 is arranged in the periphery of the inside bottom wall of base in the first opening 201
Interference fit is arranged in the annular groove, and annular groove, the second sealing ring is arranged in the periphery of the inside bottom wall of base in the second opening 202
204 interference fits are arranged in the annular groove.
Base 23 is provided with the intake line 29 connecting with input port 263 in bottom wall, and intake line 29 includes being interconnected
Input section 291 and deferent segment 292, input section 291 is perpendicular to deferent segment 292, input section 291, and the first opening 201 is arranged defeated
The end of section 292 out, input section 291 is for connecting liquid cooling input plug 293.Base 23 is located at the second opening 202 in bottom wall
Outside be provided with connecting hole, restraining position ring block wall 205 is arranged in the periphery of connecting hole.Limit ring wall 205 is used to connect mouth with connection
12, it connects mouth 12 and is fixedly connected on the shell of motor, and connect mouth 12 and be connected to the entrance in liquid cooling channel 11, connection connects
Mouth 12 is provided with sealing ring, is sealed using sealing ring.
Referring to Fig.1 0, and combine Fig. 3, base is provided with motor connecting end surface 233, the direction of motor connecting end surface 233 with
Arrangement, motor connecting end surface 233 are provided through perforation 236, are provided at perforation 236 close the direction of second opening 202 in the same direction
Blocking 237, the interference fit of three-phase dc terminal 245 ground pass through sealing-plug 237, and then three-phase dc terminal 245 is connected from motor
End face 233 is pierced by, and the opening direction of the stretching direction of three-phase dc terminal 245 and the second opening 202 is arranged towards in the same direction.Motor connects
Contact surface and the second opening are on different level, and distance of the motor connecting end surface 233 apart from substrate 24 is less than the second opening 202
Distance apart from substrate 24.Motor connecting end surface 233 is additionally provided with signal terminal interface 238.
There are two motor coupling portion 234 and two motor coupling portions 235, motor coupling portion 234 to be arranged for setting on base 23
On motor connecting end surface 233, motor coupling portion 234 is separately positioned on the both ends of motor connecting end surface 233, motor coupling portion
234 are located on the two sides of three-phase dc terminal 245, and opposite another of two motor coupling portions 234 is arranged in two motor coupling portions 235
On side, it is fixedly connected respectively with motor 1 by two motor coupling portions 234 and two motor coupling portions 235.
Motor 1 is provided with connection shell 14 in axial side, and connection shell 14 is located at the back side of output shaft, motor coupling portion and
It connects shell 14 to connect, connection shell is provided with connection chamber, and connecting cavity is provided with binding post in room, is fixed on electricity in base 23
After on machine 1, the lid of motor connecting end surface 233 of base 23 closes connection shell 14 and airtight connection chamber, and three-phase dc terminal 245 is stretched
Enter in connecting cavity room and is connect with binding post.
When drive assembly works and cooled down, coolant liquid passes through liquid cooling channel 261 from 201 input of the first opening, with
It is exported afterwards from delivery outlet 262, connects mouth 12 subsequently into connection, then pass through the liquid cooling channel 11 of motor 1, it is finally defeated from outlet 13
It is recycled out.In addition, the connection shell 14 that three-phase dc terminal 245 is inserted into motor 1 connects, drive assembly one is then realized
The topology layout of body, effectively improves protective and durability.
2 and Figure 13 referring to Fig.1, and Figure 10 is combined, base 23 is provided with connection cavity 232 and power cavity 231, above-mentioned function
Rate unit is arranged in power cavity body, when fixed, is fixedly connected by the housing coupling part 272 of surrounding with base 23, then real
The installation of existing power cell, and substrate 24 and inner casing 22 are located remotely from the side of 23 bottom wall of base, are conducive to improve again
State when protective performance such as Figure 10 is normal use is pacified since inner casing and substrate are upside downs opening lid 21
When dress or maintenance, even there are a small amount of steam or water droplet to enter, then protection can will be effectively performed by inner casing and casting glue, and
Hall sensor 244 and three-phase dc terminal 245 are located on edge side, and two DC input terminals 247 are located at three-phase dc
The opposite side of terminal 245 and it is located in the inner part, sealing shroud 246 on three-phase dc terminal 245 interference fit ground and base 23
Cooperate, and stretched out outside three-phase dc terminal 245 with outside base 23, the outer end direction of three-phase dc terminal 245 and input port export
Mouth is arranged in the same direction, and two DC input terminals 247 are located between connection cavity 232 and power cavity 231.
Shell 23 is provided with isolation shell 34 in connection cavity 232, and isolation 34 surrounding of shell is provided with peripheral wall and bottom wall, lid 21
It is provided with point lid 211 at the position of isolation shell 34, lid 211 is divided to be separably attached on lid 21, isolation shell 34
Peripheral wall, bottom wall and lid 211 is divided to surround isolated chambers, isolated chambers are isolated with power cavity, and electric machine controller is close to isolation
Side wall at shell is provided with power source connecting unit 4, and power source connecting unit 4 is connected to isolated chambers.Referring to Figure 13, connected in power supply
It is provided with connection sheet 31 between unit 4 and two DC input terminals 247 of power cell, connection sheet 32, connecting column 311, connects
Connect column 321 and fuse 33, the bottom wall that the connection position of connecting column 311 and connecting column 321 is respectively positioned on isolation shell 34 exposes, fuse
33 are located in isolation shell 34, and connection sheet 31 and connection sheet 32 are located at 34 outside of isolation shell, and connection sheet 31 is connect with connecting column 311,
Connection sheet 32, connecting column 321 and fuse 33 connect.
As seen from Figure 13, based on the extending direction of cooling duct, cooling duct has width direction X, and power tube assembly
Between capacitance component and hall sensor component, capacitance component, power tube assembly and Hall sensor X cloth in the width direction
It sets, as a whole, the plant-grid connection part in shell 34, two DC input terminals 247, capacitance component, power tube group is isolated
Successively X is arranged in the width direction for part and Hall sensor, so that the electric current of power supply is after the access of power source connecting unit 4, electric current
Substantially along direction, X's flow direction flows away, and is finally input in motor 1 from the outflow of three-phase dc terminal 245.
Referring to Fig.1 4 to Figure 16, power source connecting unit 4 includes connection shell 41, and the periphery two sides of connection shell 41 are provided with
Power source connecting unit 4 can be fixedly connected on the lateral wall of base 23 by fixation hole 411 by the connection of fixation hole 411, even
The setting of body contact body 41 illustrates that connection component includes shielding there are two the connection component being arranged side by side by taking a connection component as an example
Ring 42, sealing ring 43 and end cap 44, connection shell 41 are communicatively provided with insertion at the position of a connection component along axial direction
Hole 412 and shield opening 413, shield opening 413 is inner and arranges towards base 23, and insertion hole 412 is outwardly disposed, and in insertion hole
Positive stop lug boss 415 is provided between 412 and shield opening 413, boss 415 is radially raised from inner wall, and positive stop lug boss 415 is in a ring
Extend, positive stop lug boss 415 surrounds via hole, and between insertion hole 412 and shield opening 413, the setting of shading ring 42 is being shielded for via hole connection
It covers in hole 413, shading ring 42 claims triangle coil around the radial arrangement of central axis in the present embodiment, and certain shading ring 42 can be with
In such as round or other forms shielding construction arrangement, the middle part of shading ring 42 is through arrangement.
Sealing ring 43 is arranged in a ring, and the inner and outer wall of sealing ring 43 is provided with multiple annular grooves, sealing ring 43
Middle part is also in through arrangement, and for the setting of sealing ring 43 in insertion hole 412, positive stop lug boss 415 is located at shading ring 42 and sealing ring 43
Between, and sealing ring 43 and shading ring 42 abut against 415 axial sides of positive stop lug boss.
End cap 44 includes mutually matched two points lids, and point radially opposite sides covered in insertion hole 412 are respectively arranged with connection
Column 444 and connecting hole 445, the connecting column 444 of a point of lid are connect with the connecting hole 445 of another point of lid.After mutual cooperation
End cap 44 is provided with bulge loop 446 and annular groove 442, and annular groove 442 is located at 446 outside of bulge loop, and end cap 44 is arranged in the outside of annular groove
There are two the first card division 443, two the first card divisions 443 are arranged symmetrically, and the first card division 443 is arranged using bayonet.End cap 44 is solid
It being scheduled at insertion hole 412, end cap 44 is provided with positive stop end 441, and positive stop end 441 is located on the axial end portion of the inside of bulge loop 446,
On the outside of the hole wall in insertion hole 412, bulge loop 446 protrudes into insertion hole 412 for 442 sets of annular groove, and positive stop end 441 protrudes into insertion hole 412
Adjacent with sealing ring 43, for sealing ring 43 between positive stop lug boss 415 and positive stop end 441, connection shell 41 is being located at insertion hole
There are two the second card divisions 414, two the second card divisions 414 to be symmetrical set for setting at 412 outer wall, and the second card division 414 is in fixture block
Arrangement, the first card division 443 and the engaging of the second card division 414 then realize that end cap 44 is fixedly connected with shell 41 is connect.In connection shell
When body 41 is installed on the lateral wall of base 23, the lateral wall and positive stop lug boss 415 of base 23 limit shading ring 42, and
Shading ring 42, positive stop lug boss 415, sealing ring 43 and end cap 44 are provided with interface channel axially through ground, and shield opening with every
It is connected to from cavity, external power connector end can pass through interface channel and stretch in isolation shell 34 and realize corresponding electricity
Connection.
Electric vehicle includes the power assembly such as above scheme, the bus or train route of electric vehicle can be driven to be gone using power assembly
It walks, the electric vehicle of this case not only includes riding electric car, and including other electric power steering apparatus.
Therefore by being provided with connection framework on substrate, connection framework is provided with cooling bridge and outline border, cooling bridge
It is thermally conductive and fixed for being carried out to power tube, and capacitor setting is subjected to corresponding position in capacitor holding tank and is fixed, then
After connection framework is fixed on substrate, the position of power tube and capacitor is all relatively fixed, then using reflux wave-soldering pair
All elements on substrate disposably weld, and can be conducive to the yields for improving welding quality, production efficiency and power cell.Base
It in the cooling layout of cooling bridge, arranges that the main devices on substrate in the width direction, is realized also by the circuit layout of optimization
The optimization of current direction reduces circuit interference.Steadily power tube can be clamped by the clamping of clamping piece, be conducive to mention
The stability of height welding.By by the position optimization of input port and delivery outlet, i.e., backwards to the arrangement of substrate, then optimizing water cooling tube
The layout on road also facilitates the integrated water cooling layout of electric machine controller and power assembly.It can be more effective using the outline border of arch
Ground fixes capacitor, while being arranged using the frame height of support column, and stablizes installation using cooling pars basilaris pontis, can mention
High erecting and welding stability.
In addition, connection framework is provided with cooling bridge, and cooling bridge is used for power by being provided with connection framework on substrate
Pipe is carried out thermally conductive and is fixed, and is then disposably welded using reflux wave-soldering to all elements on substrate, can be conducive to mention
Substrate is arranged by being additionally provided with inner casing, and after welding for the yields of high welding quality, production efficiency and power cell
In the placing groove of inner casing, it is then filled with casting glue in placing groove, and using the welding position of casting glue package substrate, effectively mentions
The protective performance of high power unit prevents steam or dust etc. to the interference of circuit connection position, also utilizes casting glue to each
The position of device is fixed, and is conducive to improve stability in use of the power cell under vibration environment, while can also realize corresponding
It is thermally conductive, improve the operation stability of equipment.By higher cell wall, the packed height of casting glue is relatively improved,
Then it can be sealed package to the pin of crucial element, improves protective performance and device stability.By by input port and
The position optimization of delivery outlet, i.e., backwards to substrate arrangement, then optimize water cooling pipeline layout, also facilitate electric machine controller and
The integrated water cooling of power assembly is laid out.And capacitor setting is subjected to corresponding position in capacitor holding tank and is fixed, it then will even
It connects after frame is fixed on substrate, the position of power tube and capacitor is all relatively fixed, can be improved the stabilization of welding in welding
Property, improve yields.Cooling layout based on cooling bridge, arranges that the main devices on substrate in the width direction, also by excellent
The circuit layout of change realizes the optimization of current direction, reduces circuit interference.
Furthermore by the way that cooling duct is arranged in cooling bridge, cooling duct is for conveying coolant liquid, for convenience to cooling
Channel easily machine-shaping, therefore the side of extending direction is provided with technique mouth in cooling duct, it can be square using technique mouth
Just carry out grooving, aperture etc. operation, and the periphery of technique mouth be arranged positioning step, by capping with positioning step friction
Corresponding capping and closed is then realized in welding, so that cooling duct airtightness is good and easy to process.Prolonged by technique opening's edge
It opens up with stretching direction, can then facilitate and input port, delivery outlet and heating column are processed, the heating column positioned at middle part can
Preferably heat is conducted.It is located at bottom by substrate connecting portion, input port and delivery outlet are located at top, and capping position
Setting in middle part optimizes the structure arrangement of cooling bridge, so that mutually interference-free, the rationally distributed property of optimised devices.
And by being provided with cooling bridge in electric machine controller, can by power tube generate waste heat can promptly by
Cooling bridge is taken away in a manner of liquid cooling, and in order to improve protective and water power degree of isolation, thus by the opening direction of input port and
The opening direction of delivery outlet is backwards to substrate, so that coolant liquid is easy to happen welding position of the position far from substrate of leakage, and
Normal operating condition exists, and substrate is to be located at a high position, and the first opening and the second opening are to be located at low level, so as to effectively improve electricity
The protective performance and water power degree of isolation of machine controller, in addition by three-phase dc terminal with second opening towards identical set
It sets, it, can be simultaneously to three-phase dc terminal and the by coupling force in the same direction when so that electric machine controller being connected to motor
The connection of two openings provides effective fastening force, so that the connection of electric machine controller and motor is more firm.It is connected by motor
The setting of end face, and three-phase dc terminal is pierced by from motor connecting end surface, so that being utilized after electric machine controller is connected to motor
The fastening force of motor coupling portion provides the close connection of effective motor connecting end surface, and the design of sealing-plug effectively improves protection
Performance.By the setting of different height, so that coolant liquid connection position effectively improves water power isolation, improves far from electrical connection position
Protective performance.Liquid cooling channel is provided in motor, using the connection of electric machine controller and motor, and will cooling bridge and cold liquid channel
The integrated liquid-cooling heat radiation scheme of controller and motor is then realized in connection.
Also, shading ring and sealing ring are limited by positive stop lug boss, and using end cap to the position of sealing ring
Be fixed, when even jointing is inserted into from insertion hole, and the position of sealing ring be also it is relatively fixed, be conducive to improve anti-
Performance is protected, while the position of shading ring and form will not be interfered, therefore can be improved shielding stability.It is arranged by annular
Positive stop lug boss and device along axial arrangement, can be improved assembly simplicity, the running that also can be improved device is stablized
Property.By the end cap of point lid combination this case of split settings, production cost is effectively controlled using simple separate structure, reduces system
Make difficulty, while using the cooperation of bulge loop and annular groove, can be to its positioning action well of sealing ring, and utilize two card divisions
Cooperation, not only facilitates installation and stable connection.
Claims (10)
- It is the capacitance component, described 1. power cell, including substrate, capacitance component, power tube assembly and hall sensor component Power tube assembly and the hall sensor component weld on the substrate；It is characterized by:The power cell further includes connection framework and clamping piece component, and the connection framework is provided with cooling bridge and outline border, institute It states cooling bridge and the outline border surrounds capacitor holding tank, cooling duct is provided in the cooling bridge, the connection framework is fixed Connection is on the substrate；The power tube assembly includes multiple power tubes, and the clamping piece component makes power tube assembly clamping multiple described Power tube is abutted against respectively on the two sides of the cooling bridge；The capacitance component includes multiple capacitors, and the capacitor is arranged in the capacitor holding tank, power tube assembly position Between the capacitance component and the hall sensor component.
- 2. power cell according to claim 1, it is characterised in that:Multiple power tubes are separately positioned on the both sides of the width direction based on the cooling bridge extending direction, the first side The power tube be located in the capacitor holding tank, the power tube of the second side is located at outside the capacitor holding tank, institute Hall sensor component is stated to be located at outside the capacitor holding tank；The capacitance component, the power tube assembly and the Hall sensor are arranged along the width direction.
- 3. power cell according to claim 2, it is characterised in that:The clamping piece component includes multiple clamping pieces, the power tube grip of the clamping piece to both sides.
- 4. power cell according to claim 3, it is characterised in that:The cooling bridge is respectively arranged with input port and delivery outlet, the input port and institute on the both ends of the extending direction It states delivery outlet to be connected to the cooling duct respectively, the opening direction of the opening direction of the input port and the delivery outlet is carried on the back To the substrate.
- 5. power cell according to claim 1, it is characterised in that:The domed setting of outline border, the capacitor and the outline border clearance fit positioned at outside.
- 6. power cell according to any one of claims 1 to 5, it is characterised in that:The outline border is provided with support column, and the support column is connected between the outline border and the substrate.
- 7. power cell according to any one of claims 1 to 5, it is characterised in that:The cooling bridge is provided with substrate connecting portion in the end face towards the substrate, and the substrate connecting portion and the substrate connect It connects.
- 8. electric machine controller, including shell, it is characterised in that:The electric machine controller is provided with such as the described in any item power cells of the claims 1 to 7 in the shell.
- 9. power assembly, which is characterized in that including motor and such as the electric machine controller of the claims 8, the motor control Device is connect with the motor.
- 10. electric vehicle, which is characterized in that the power assembly including such as the claims 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910278112.6A CN109842305B (en) | 2019-04-08 | 2019-04-08 | Power unit, motor controller, power assembly and electric vehicle |
| PCT/CN2020/083130 WO2020207335A1 (en) | 2019-04-08 | 2020-04-03 | Power unit, cooling bridge, power connection unit, motor controller, powertrain and electrical vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910278112.6A CN109842305B (en) | 2019-04-08 | 2019-04-08 | Power unit, motor controller, power assembly and electric vehicle |
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| Publication Number | Publication Date |
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| CN109842305A true CN109842305A (en) | 2019-06-04 |
| CN109842305B CN109842305B (en) | 2024-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910278112.6A Active CN109842305B (en) | 2019-04-08 | 2019-04-08 | Power unit, motor controller, power assembly and electric vehicle |
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| CN (1) | CN109842305B (en) |
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| CN110855093A (en) * | 2019-12-06 | 2020-02-28 | 珠海英搏尔电气股份有限公司 | Drive assembly and vehicle that power tube annular was arranged |
| CN110868130A (en) * | 2019-12-06 | 2020-03-06 | 珠海英搏尔电气股份有限公司 | Motor control device with capacitor arranged in surrounding mode, driving assembly and vehicle |
| CN115622474A (en) * | 2022-12-15 | 2023-01-17 | 山西省机电设计研究院有限公司 | Sealed water-cooling motor controller |
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| CN109842305B (en) | 2024-02-06 |
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