CN107640061A - A kind of multiple field integrated power control unit - Google Patents

A kind of multiple field integrated power control unit Download PDF

Info

Publication number
CN107640061A
CN107640061A CN201711084320.XA CN201711084320A CN107640061A CN 107640061 A CN107640061 A CN 107640061A CN 201711084320 A CN201711084320 A CN 201711084320A CN 107640061 A CN107640061 A CN 107640061A
Authority
CN
China
Prior art keywords
pcu
integrated
water coolers
motor controller
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201711084320.XA
Other languages
Chinese (zh)
Inventor
贺林
杨泽
魏宇江
延浩
李德鑫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Huatian Automobile Technology Co Ltd
Original Assignee
Beijing Huatian Automobile Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Huatian Automobile Technology Co Ltd filed Critical Beijing Huatian Automobile Technology Co Ltd
Priority to CN201711084320.XA priority Critical patent/CN107640061A/en
Publication of CN107640061A publication Critical patent/CN107640061A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electric Propulsion And Braking For Vehicles (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

The present invention discloses a kind of multiple field integrated power control unit(Power Control Unit hereinafter referred to as " PCU "), including the power electronics electric components such as housing, water coolers, Z-shaped pressure, electrical arrangement unit PDU, direct-current charge port, AC charge port, Vehicular charger OBC, DC/DC, drive motor controller MCU, steering motor controller SMCU, braking motor controller BMCU, battery management system BMS, entire car controller VMS.Using steel plate structure cavity, intensity is big, ductility is high, good airproof performance;Inside sets aluminium alloy water coolers, perfect heat-dissipating, manufacture easy to process;Inside cavity uses sandwich construction integrated power multiple electric parts, and integrated level is high, optimization arrangement space;Cavity upper and lower covers use Z-shaped press strip, and seal pressure is uniform, good airproof performance.

Description

A kind of multiple field integrated power control unit
Technical field
The present invention relates to electric vehicle engineering field, and multiple field integrated power control unit is used more particularly to one kind (Power Control Unit hereinafter referred to as " PCU ").
Background technology
Due to a large amount of consumption of the non-renewable energy resources such as petroleum gas, various countries all suffer from energy shortage, environmental pollution, The problems such as living environment is deteriorated.Therefore each state has all more and more been placed on notice cleaning, pollution-free.Zero-emission can be realized On the pure electric automobile put.Huge manpower and financial resources has also been put into pure electric automobile simultaneously.
But the electrical structure of pure electric automobile is complicated, parts are more and the physical dimension of its battery bag is also bigger, same When high-low pressure wire harness it is cumbersome, cause the insufficient space of arrangement, this problem has had influence on the traveling of pure electric automobile Reliability.Therefore the space problem for how solving arrangement has become the key technology of pure electric automobile.
Existing power control unit structure be mostly " three-in-one " be motor controller MCU, annex electric machine controller, Electrical arrangement unit PDU part of devices.Or " five in one " is that motor controller MCU, annex motor control, electric power are matched somebody with somebody Put unit PDU part of devices, Vehicular charger OBC, DC/DC.Both formed using aluminium alloy compression casting, toughness is poor, Hardness is low, it is yielding to be hit, and cost is also higher.And integrated level is not high, make power control unit longer to electrical appliance kit presence High-voltage wiring harness.
The content of the invention
It is an object of the invention to provide a kind of quantity of reduction wire harness that can be largely, improve arrangement sky Between, improve pure electric automobile traveling reliability and meanwhile electric automobile internal control system can be optimized and facilitated electronic A kind of integrated form power control unit of automobile charging.
In order to solve the above technical problems, the present invention provides a kind of multiple field integrated power control unit PCU, it includes PCU Housing, seal trim strip, connector shield box, detachable water coolers, DC/DC, Vehicular charger OBC, drive motor controller MCU (Stack bus bar may be included), steering motor controller SMCU, braking motor controller BMCU, electrical arrangement unit PDU, direct current Charge port, AC charge port, entire car controller VMS, battery management system BMS.
The multiple field integrated power control unit, inside it centered on water coolers, in the above or increase below At least one layer of plane is used for the multiple electric parts for installing no cooling requirement.
The PCU housings are bolted and formed by upper lid, casing, bottom.
The seal trim strip is lid/lower cover and box body bolt junction on PCU, be bolted with upper lid, Lower cover and casing composition PCU housings, play a part of to strengthen sealing.
The detachable water coolers are that the good materials of thermal conductivity such as aluminium or magnesium are process, and pass through four box-like supports one Four angles of the fixed water coolers in end.
Its principle is inside PCU centered on water coolers, and an increase at least layer plane is built in the above or below Three layers and more than three layers structures.By DC/DC, Vehicular charger OBC, drive motor controller MCU, steering motor controller SMCU, braking motor controller BMCU, electrical arrangement unit PDU, direct-current charge port, AC charge port etc. integrate respectively. To reduce the length of overall wire sheaves, increase the space of arrangement.
It is an advantage of the invention that:
By integrated form power control unit PCU internal builds into three layers and more than three layers structures, in integrated DC/DC, vehicle-mounted charge Machine OBC, drive motor controller MCU, steering motor controller SMCU, braking motor controller BMCU etc. have cooling requirement electronics , also being capable of integrated power dispensing unit PDU, entire car controller VMS, battery management system BMS, direct current while electric components The multiple electric parts without cooling requirement such as charge port, AC charge port.The present invention can cancel the electricity of conventional electric car Device box, is integrated into inside PCU, improves the space of arrangement;Each controller is integrated, reduces vehicle low-voltage line Length, reduce arrangement wire harness difficulty;Using detachable water bag, PCU maintainability is improved, improves service life, And then reduce cost;The method for arranging of three layers and more than three layers structures, make PCU integrated level higher.
Brief description of the drawings
Fig. 1 multiple field integrated power control unit PCU overall diagrams
Fig. 2 front views
Fig. 3 rearviews
Fig. 4 removes upper cover top view
Fig. 5 three-layered node compositions
Fig. 6 fall " several " font third layer structural plan
Fig. 7 water coolers internal water channel figures
Third layer structural plans of the Fig. 8 with accessory plate
Fig. 9 schemes three remove upper cover top view
Figure 10 schemes three remove the sectional view of upper cover top view
The view of Figure 11 multiple field integrated power control unit PCU internal structures
Reference:
1 Z-shaped seal trim strip 17 Water coolers
2 Covered on PCU 18 Annex electric machine controller IMCU
3 Sealing strip 19 Vehicular charger OBC
4a Preceding protecting box 20 Battery management system BMS
4b Protecting box afterwards 21 PCU third layer structures
5 PCU casings 22 DCDC
6 PCU bottoms 23 Fixed water bag support
7 PCU supports 24 Fixed third layer support
8 Connector outside PCU 25 Electrical arrangement unit PDU
9a Direct-current charge port 26 Coolant water inlet pipe and water outlet pipe
9b AC charge port 27 Sealing ring
10 Drive motor controller MCU 28 Anti-deformation boss
11 Barricade 29 Accessory plate
12 Stack bus bar 30 Water wraps the third layer of jack-up
13 Thin-film capacitor 31 Support bar
14 The Rotating fields of PCU first
15 The Rotating fields of PCU second
16 IGBT
Embodiment
Referring to accompanying drawing.
Scheme one:
Multiple field integrated power control unit on PCU by covering(2), PCU casings(5), PCU bottoms(6)Formed etc. traditional part.It is internal Using hierarchy, the Rotating fields of PCU first(13)It is integrated with drive motor controller MCU(10);PCU second layer structure assemblies DCDC(21), Vehicular charger OBC(18), annex electric machine controller IMCU(17)(Oil pump electrical machinery controller, air pump may be included Electric machine controller);PCU third layer structure assemblies electrical arrangement unit(23), battery management system BMS(19)(It may include Entire car controller VMS), trickle charge charge port(9a), fast charge charge port(9b).
Detachable water coolers(16)Pass through four water bag supports(22)Fixed, support two sides is welded on PCU casings(5)It is interior Wall, upper and lower surface respectively with water coolers(16)With PCU bottoms(6)It is spirally connected.PCU third layer structures(20)To fall "Ji" type, Pass through four supports(23)Stretch out and fix.The outer surface of support and water bag support(22)The face welding of inner side, side is carried out with it The reinforcement that is spirally connected is fixed.
Fig. 1 is integrated form power control unit PCU structure chart, and Fig. 2 is PCU front view, and Fig. 3 is PCU dorsal view. As can be seen from the figure PCU structures substantially and the installation site of each high-low pressure connector.Simultaneously direct-current charge port(9b)、 AC charge port(9a)It is integrated into PCU inside.
Fig. 4 is that PCU removes upper cover top view, it can be seen that is integrated with drive motor controller MCU(10), stack bus bar (11), thin-film capacitor(12), electrical arrangement unit PDU(24)A part.
Fig. 5 is the three-layered node composition inside PCU, it can be seen that three layers of distributing position inside PCU, and each layer of institute Integrated electricity piece.Including water coolers(16)With PCU third layer structures(20)Fixed form.It is it may also be seen that whole Integrated level inside individual PCU is higher.
Fig. 6 is PCU third layer structures(20)Figure, it can be seen that the "Ji" type that this Rotating fields is, pass through four turnings It is spirally connected fixation with support, still further it can be seen that electrical arrangement unit(PDU)Deployment scenarios, part relay use upside-down mounting shape Formula, fast charge charging structure when convenient for assembly(9b)Internal wiring.
Fig. 7 is water coolers internal water channel figure, it can be seen that cooling water channel uses cascade, and it is compared with parallel arrangement Compared with cooling liquid speed is uniform, the good heat dissipation effect of electricity piece.It can also be seen that water coolers(16)Middle part has two to preapre for an unfavorable turn of events Shape boss(27), prevent water coolers bottom plate because of DCDC(21), Vehicular charger OBC(18), annex electric machine controller(17) Active force during vibrations causes to deform.
Scheme two:
See Fig. 8, this programme is arranged in accessory plate compared with scheme one, by component forward directions such as relay, preliminary filling resistance(28)On Face, then accessory plate is bolted on PCU third layer structures(20)On.Remaining arrangement is consistent with scheme one.
Scheme three:
In electric power integration unit PCU upper lid(2)And barricade(11)Between fix one layer be similar to " furred ceiling " steel plate structure (30), electrical arrangement unit PDU(25), battery management system BMS(20)And entire car controller VMS etc. is disposed above.Its Remaining electricity piece is separately fixed at water coolers(17)Upper surface and water coolers bottom.Arrangement is consistent with scheme one.
It is specifically shown in accompanying drawing 9, Figure 10, Figure 11.
Fig. 9 is that scheme three removes upper cover top view, it can be seen that water wraps the third layer of jack-up(30)The arrangement of upper electricity piece Mode, and this layer pass through four support bars around PCU casings(31)It is fixed.
Figure 10 is the sectional view of top view, it can be seen that the third layer of jack-up is wrapped by water(30), barricade(11), cooling Water bag(17), it is divided into the structure of three layer of four segment space.It is enough the height of integrated level for embodying PCU.
Figure 11 is the view of PCU internal structures, it can be seen that the integrated situation of its internal general structure and electricity piece.

Claims (10)

  1. A kind of 1. multiple field integrated power control unit(PCU), it is characterised in that:Including PCU housings, seal trim strip, connector Protect box, water coolers, DC/DC, Vehicular charger OBC, drive motor controller MCU, steering motor controller SMCU, braking electricity Machine controller BMCU, electrical arrangement unit PDU, direct-current charge port, AC charge port, battery management system BMS, entire car controller The power electronics electric components such as VMS;The power control unit HVDC that on electric automobile, battery bag is exported Electricity is converted into various AC or DC electricity and used for all kinds of subsystem parts on car.
  2. 2. multiple field integrated power control unit according to claim 1, it is characterised in that:The PCU housings by it is upper lid, Casing and lower cover composition, fabricated with the high material of the eager to do well in everything degree of the ductility such as steel plate, form a seal cavity structure;It is described Seal trim strip is lid or lower cover and box body bolt link position on PCU, is bolted upper lid, lower cover and casing Fit sealing forms PCU cavitys;Z-shaped seal trim strip can be used, at press strip link realize be overlapping be fixed on it is same In bolt connection;The connector shield box is arranged on PCU housings by connected modes such as bolts.
  3. 3. multiple field integrated power control unit according to claim 1, it is characterised in that:The water coolers by aluminium or The good material of the thermal conductivitys such as magnesium is process, and is removably mounted in PCU seal cavities.
  4. 4. water coolers according to claim 2, it is characterised in that:Cooling water is fixed on by four box-like support one end Four angles of bag, the other end are bolted with bottom, water coolers is integrated with whole PCU housings;The cooling water The sealing of the coolant water inlet pipe and water outlet pipe and tank wall of bag can use interference fit, can also use screw thread to coordinate and be sealed;Cooling The sealing of liquid water inlet pipe and water outlet pipe is less than the interference fit of water bag boss diameter using seal diameter, can also be connected by screw bolts filling Fluid sealant;Water coolers interposition, which is equipped with two ellipse around boss, prevents water coolers bottom slab stress from deforming.
  5. 5. multiple field integrated power control unit according to claim 1, it is characterised in that:The multiple field integrates, and is Increase an at least sheaf space in water coolers up or down portion space, the sheaf space is used for without heat control design cases such as coolings The multiple electric parts of no cooling requirement are installed.
  6. 6. multiple field according to claim 5 integrates, it is characterised in that:Both may be used in the upper or lower surface of the water coolers For being provided with the electric power parts of cooling requirement, it can be used for installing the multiple electric parts of no cooling requirement.
  7. 7. multiple field according to claim 5 integrates, its feature includes but is not limited to:It is water coolers upper table in first layer Face, installation electric machine controller MCU, relay, insurance;The second layer is the lower surface of water coolers, installs DC/DC, vehicle-mounted charge Machine OBC, steering motor controller SMCU, braking motor controller BMCU;Third layer is one be fixed on water coolers support Layer steel plate, high low pressure relay, the battery management system BMS of installation system needs.
  8. 8. multiple field according to claim 5 integrates, its feature includes but is not limited to:It is water coolers upper table in first layer Face, installation electric machine controller MCU, relay, insurance;The second layer is installation DC/DC, vehicle-mounted to be fixed on water coolers lower surface Charger OBC, steering motor controller SMCU, braking motor controller BMCU;Third layer is one jacked up on water coolers High low pressure relay, the battery management system BMS that layer installation system needs.
  9. 9. multiple field according to claim 5 integrates, it is characterised in that:Relay in PDU systems both can just peace Dress, can also upside down installation;Relay, battery management system BMS are arranged in by third layer using the steel plate of " several " font Face.
  10. 10. multiple field according to claim 5 integrates, it is characterised in that:Can be by direct-current charge port and AC charge port On PCU cavitys, one can also be fitted into, can not also be installed;Entire car controller VCU can be integrated into PCU In cavity, it can not also be integrated into PCU cavitys;Battery management system BMS can be integrated into PCU cavitys, can also not It is integrated into PCU cavitys;Braking motor controller BMCU and steering motor controller SMCU can be integrated into PCU cavitys, One of them can also be integrated, can not also be integrated.
CN201711084320.XA 2017-11-07 2017-11-07 A kind of multiple field integrated power control unit Pending CN107640061A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711084320.XA CN107640061A (en) 2017-11-07 2017-11-07 A kind of multiple field integrated power control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711084320.XA CN107640061A (en) 2017-11-07 2017-11-07 A kind of multiple field integrated power control unit

Publications (1)

Publication Number Publication Date
CN107640061A true CN107640061A (en) 2018-01-30

Family

ID=61125950

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711084320.XA Pending CN107640061A (en) 2017-11-07 2017-11-07 A kind of multiple field integrated power control unit

Country Status (1)

Country Link
CN (1) CN107640061A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108556771A (en) * 2018-07-10 2018-09-21 杭州神驹科技有限公司 A kind of control system for heat management of electric vehicle
CN109515212A (en) * 2018-12-14 2019-03-26 北京理工华创电动车技术有限公司 A kind of electric car power integrated control system
CN109624713A (en) * 2018-12-28 2019-04-16 陕西通家汽车股份有限公司 A kind of small three electric system of pure electric automobile integrated form
CN109895648A (en) * 2019-04-18 2019-06-18 珠海亿华电动车辆有限公司 A kind of charging pile for sweeping the floor automobile-used and road sweeper system
CN109927563A (en) * 2019-01-28 2019-06-25 北京华田汽车科技有限公司 Power entry module multiple field power control unit built in case lid
CN109969003A (en) * 2019-02-22 2019-07-05 浙江飞碟汽车制造有限公司 A kind of pure electric automobile CDU system structure
CN110549872A (en) * 2018-03-27 2019-12-10 北京华田汽车科技有限公司 Electric automobile high-voltage electrical framework adopting standard battery pack and integrated power control unit
WO2023011018A1 (en) * 2021-08-04 2023-02-09 比亚迪股份有限公司 Integrated controller, electric drive assembly, and vehicle

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009261125A (en) * 2008-04-16 2009-11-05 Denso Corp Power control unit
CN202022174U (en) * 2011-04-26 2011-11-02 天津阿尔特汽车技术有限公司 Motor controller for electric automobile
CN102350973A (en) * 2011-06-24 2012-02-15 张家港市江南汽车制造有限公司 Integrated controller for pure electric automobile
JP2012156373A (en) * 2011-01-27 2012-08-16 Toyota Motor Corp Cooling device of electrical apparatus
CN103386936A (en) * 2013-08-08 2013-11-13 安徽巨一自动化装备有限公司 DC (direct current)/DC controller-motor controller integrating structure of electric vehicle
CN104494535A (en) * 2014-12-04 2015-04-08 安徽巨一自动化装备有限公司 Arrangement structure of integrated water-cooled motor controller of electric vehicle
CN204408833U (en) * 2015-02-13 2015-06-17 广东高标电子科技有限公司 Controller for electric vehicle and electric motor car
CN204598515U (en) * 2015-05-26 2015-08-26 八达电气有限公司 A kind of integrated manipulator and use the electric automobile of this controller
CN105083166A (en) * 2015-08-27 2015-11-25 郑州日产汽车有限公司 Integrated type power control unit for electric vehicle
CN205010142U (en) * 2015-08-27 2016-02-03 郑州日产汽车有限公司 A integrated form power control unit for electric automobile
CN105376968A (en) * 2015-12-07 2016-03-02 合肥巨一动力系统有限公司 Integrated power system of electric automobile
CN106080443A (en) * 2016-08-11 2016-11-09 北京理工华创电动车技术有限公司 A kind of electric automobile power integrated manipulator
CN206341514U (en) * 2017-01-04 2017-07-18 江苏协昌电子科技股份有限公司 A kind of integral plug-in type controller for electric vehicle

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009261125A (en) * 2008-04-16 2009-11-05 Denso Corp Power control unit
JP2012156373A (en) * 2011-01-27 2012-08-16 Toyota Motor Corp Cooling device of electrical apparatus
CN202022174U (en) * 2011-04-26 2011-11-02 天津阿尔特汽车技术有限公司 Motor controller for electric automobile
CN102350973A (en) * 2011-06-24 2012-02-15 张家港市江南汽车制造有限公司 Integrated controller for pure electric automobile
CN103386936A (en) * 2013-08-08 2013-11-13 安徽巨一自动化装备有限公司 DC (direct current)/DC controller-motor controller integrating structure of electric vehicle
CN104494535A (en) * 2014-12-04 2015-04-08 安徽巨一自动化装备有限公司 Arrangement structure of integrated water-cooled motor controller of electric vehicle
CN204408833U (en) * 2015-02-13 2015-06-17 广东高标电子科技有限公司 Controller for electric vehicle and electric motor car
CN204598515U (en) * 2015-05-26 2015-08-26 八达电气有限公司 A kind of integrated manipulator and use the electric automobile of this controller
CN105083166A (en) * 2015-08-27 2015-11-25 郑州日产汽车有限公司 Integrated type power control unit for electric vehicle
CN205010142U (en) * 2015-08-27 2016-02-03 郑州日产汽车有限公司 A integrated form power control unit for electric automobile
CN105376968A (en) * 2015-12-07 2016-03-02 合肥巨一动力系统有限公司 Integrated power system of electric automobile
CN106080443A (en) * 2016-08-11 2016-11-09 北京理工华创电动车技术有限公司 A kind of electric automobile power integrated manipulator
CN206341514U (en) * 2017-01-04 2017-07-18 江苏协昌电子科技股份有限公司 A kind of integral plug-in type controller for electric vehicle

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110549872A (en) * 2018-03-27 2019-12-10 北京华田汽车科技有限公司 Electric automobile high-voltage electrical framework adopting standard battery pack and integrated power control unit
CN108556771A (en) * 2018-07-10 2018-09-21 杭州神驹科技有限公司 A kind of control system for heat management of electric vehicle
CN109515212A (en) * 2018-12-14 2019-03-26 北京理工华创电动车技术有限公司 A kind of electric car power integrated control system
CN109624713A (en) * 2018-12-28 2019-04-16 陕西通家汽车股份有限公司 A kind of small three electric system of pure electric automobile integrated form
CN109624713B (en) * 2018-12-28 2024-04-05 陕西通家汽车股份有限公司 Integrated small three-electric system of pure electric automobile
CN109927563A (en) * 2019-01-28 2019-06-25 北京华田汽车科技有限公司 Power entry module multiple field power control unit built in case lid
CN109969003A (en) * 2019-02-22 2019-07-05 浙江飞碟汽车制造有限公司 A kind of pure electric automobile CDU system structure
CN109895648A (en) * 2019-04-18 2019-06-18 珠海亿华电动车辆有限公司 A kind of charging pile for sweeping the floor automobile-used and road sweeper system
CN109895648B (en) * 2019-04-18 2024-05-14 珠海亿华电动车辆有限公司 Charging pile for sweeping vehicle and sweeping vehicle system
WO2023011018A1 (en) * 2021-08-04 2023-02-09 比亚迪股份有限公司 Integrated controller, electric drive assembly, and vehicle
EP4342718A4 (en) * 2021-08-04 2024-10-16 Byd Co Ltd Integrated controller, electric drive assembly, and vehicle

Similar Documents

Publication Publication Date Title
CN107640061A (en) A kind of multiple field integrated power control unit
CN205004368U (en) Walk line board and have this battery package of walking line board
US20180130589A1 (en) Inductor cooling systems and methods
CN105210467A (en) Cooling housing for electronic device, electronic device, and construction machine
CN213108967U (en) Hydrogen supply frame system arranged in subareas
CN108520990B (en) Electric automobile battery box and heat dissipation and heating system and method thereof
CN107394305A (en) A kind of battery heat dissipation device of electric automobile
CN207353334U (en) Battery case and its heat management system
JP6438266B2 (en) Dump truck
CN108321327A (en) A kind of used in new energy vehicles battery case
CN108275063B (en) Three-electric system structural arrangement of pure electric refrigerator car
CN201646371U (en) Chassis device of novel electric forklift
US10529479B2 (en) Inductor cooling systems and methods
CN112953348A (en) Double-motor inverter and automobile
CN112768801A (en) Battery charging heat radiation structure of new energy automobile
US20180130592A1 (en) Inductor cooling systems and methods
CN217477097U (en) Electric automobile energy conversion and distribution device and electric automobile
CN115588809A (en) Lightweight integrated plug-in hybrid power battery structure system
CN107512232A (en) A kind of power control unit structure
JP5155801B2 (en) Hybrid vehicle
CN208904086U (en) A kind of new-energy automobile power battery box assembly
CN103863399A (en) Automatic temperature-controlled dual-power anti-collision vehicle body bearing frame of blade electric vehicle
CN213660560U (en) Big module power battery system
CN207510201U (en) A kind of electronic cargo battery overhead structure
JP6634119B2 (en) Power storage device layout structure and dump truck

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20180130

RJ01 Rejection of invention patent application after publication