CN111477793A - Open lightweight power battery shroud assembly in low entry city bus top - Google Patents
Open lightweight power battery shroud assembly in low entry city bus top Download PDFInfo
- Publication number
- CN111477793A CN111477793A CN202010296978.2A CN202010296978A CN111477793A CN 111477793 A CN111477793 A CN 111477793A CN 202010296978 A CN202010296978 A CN 202010296978A CN 111477793 A CN111477793 A CN 111477793A
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- shell
- aluminum alloy
- access door
- power battery
- drainage device
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/66—Arrangements of batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using 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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The invention discloses a top-opening light-weight power battery cover assembly of a low-entrance urban passenger car, which comprises a shell, an aluminum alloy rectangular pipe framework, two access doors and a drainage device, wherein the shell is made of an aluminum alloy plate, two sides of the shell are bent and fixed on a top molding part of the passenger car through screws, and the two access doors are respectively arranged on two sides above the middle part of the shell. The invention has the beneficial effects that: the access door at the top of the cover is made of a light honeycomb aluminum plate, the weight of the access door is lighter than that of a common aluminum alloy cabin door, the size of the access door can be reasonably designed in combination with the space for battery maintenance and even removal, the access door is installed on the cover shell through a hinge and locked through a rotary lock, when maintenance is needed, the access door is unlocked and turned over, maintenance can be carried out, and the access door is very convenient; according to the aluminum alloy drainage device, the sealing rubber strip is arranged at the edge of the notch of the drainage device, and when the access door is closed, the access door is tightly pressed on the sealing rubber strip, so that water is prevented from entering the cover.
Description
Technical Field
The invention relates to a power battery cover assembly, in particular to a top-opening light-weight power battery cover assembly of a low-entrance city bus, and belongs to the technical field of application of power battery cover assemblies.
Background
At present, a low-entrance city bus is popular in a two-line city, but the low-entrance city bus is limited by a battery installation space, most batteries are installed on the top of a vehicle, and fenders are designed on two sides of the top to cover the batteries, so that the installation of a common battery cover cap is difficult.
The common battery cover is generally made of glass fiber materials and is made into a sealing structure, and the defects of difficult maintenance, large volume, heaviness, insufficient strength, easy collapse and higher development cost are overcome. The development level of the power battery is greatly improved at present, the waterproof grade of the liquid cooling battery of the new generation reaches IP68, common rainwater is not affected generally, but the heat dissipation requirement is higher. Therefore, in order to meet the requirements of top molding, battery heat dissipation and battery cover installation, a novel battery cover which is light in weight and open is urgently needed to be developed and designed.
Disclosure of Invention
The invention aims to solve the problems and provides a top-opening type light-weight power battery cover assembly of a low-entrance city bus.
The purpose of the invention can be realized by the following technical scheme: a low-entry city passenger car top-opening light-weight power battery cover assembly comprises a shell, an aluminum alloy rectangular tube framework, two access doors and a drainage device, wherein the shell is made of aluminum plates made of aluminum alloy materials, the two sides of the shell are bent and fixed on a passenger car top forming part through screws, the two sides of the shell are bent, the two access doors are respectively arranged on the two sides above the middle part of the shell, the access doors are arranged on the shell through hinge hinges, the access doors are arranged on the cover shell through hinge hinges and locked through rotary locks, when the access is needed, the access doors are unlocked and turned over to carry out the access, one ends of the access doors, far away from the hinge hinges, are connected with the shell through rotary locks, sealing plates at the two ends of the shell are welded, the sealing plates are made of aluminum alloy materials, a ventilation grid punched at the middle part of the sealing plates is arranged, the rear grille exhausts air to take away heat in the cover cap, so that timely heat dissipation and cooling are achieved, the folded edges below the sealing plates can be fixed on the top cover through bolts, the two sides of each sealing plate are provided with movable sealing plates, the movable sealing plates are fixed on the two sides of the sealing plates at the front end and the rear end, and gaps at the two sides can be eliminated through the movable sealing plates after the cover cap is fixed on the top cover, so that a sealing effect is achieved;
an aluminum alloy rectangular pipe framework is welded below the shell and used for supporting the shell and fixing an internal drainage device, the drainage device is welded below the aluminum alloy rectangular pipe framework, drainage grooves with a structure shaped like a Chinese character 'kou' are formed in two sides of the drainage device, and drainage outlets are formed in the edges of two ends of each drainage groove;
wherein, the cover is equipped with joint strip in the notch of water drainage tank, and when the access door was closed, access door sticiss joint strip, prevents inside water entering shroud.
The invention has further technical improvements that: rain baffles are welded at two ends of the shell to prevent rainwater from entering the water outlet.
The invention has further technical improvements that: two access doors are the symmetry setting, and the access door is light-duty honeycomb aluminum plate material, and both ends all are provided with aluminium alloy plate about the access door, and two aluminium alloy plate inner walls all are provided with the binder layer, and are provided with aluminium matter honeycomb core between two binder layers.
The invention has further technical improvements that: and a folded edge is arranged below the sealing plate and is fixed on a top cover of the passenger car through a bolt.
The invention has further technical improvements that: the drainage device is formed by welding aluminum plates in a splicing manner, and is provided with a drainage groove and a drainage outlet which extends to the outside of the shell; according to the aluminum alloy drainage device, the sealing rubber strip is arranged at the edge of the notch of the drainage device, and when the access door is closed, the access door is tightly pressed on the sealing rubber strip, so that water is prevented from entering the cover.
The invention has further technical improvements that: the drain outlet extends to the outside of the housing.
The invention has further technical improvements that: the access door is connected with the hinge rotation, and the access door passes through the hinge and installs on the shroud casing to pin through rotatory lock, when needing to overhaul, open and unblank and upset access door, can overhaul, it is very convenient.
Compared with the prior art, the invention has the beneficial effects that:
1. the shell, the framework, the drainage device and the sealing plate are all made of aluminum alloy plates, so that the weight is light, the processing is simple, and the die sinking is not needed; two sides of the shell are fixed on the vehicle top molding part through screws, and rain baffles are welded at the front and the rear of the shell to prevent rainwater from entering a water outlet; the access door at the top of the cover is made of a light honeycomb aluminum plate, the weight of the access door is lighter than that of a common aluminum alloy cabin door, the size of the access door can be reasonably designed in combination with the space for battery maintenance and even removal, the access door is installed on the cover shell through a hinge and locked through a rotary lock, when maintenance is needed, the access door can be unlocked and turned over, and maintenance can be carried out conveniently.
2. An aluminum alloy rectangular pipe framework is welded below a shell part and used for supporting the shell and fixing an internal drainage device, the aluminum alloy drainage device is welded below the aluminum alloy rectangular pipe framework and is formed by welding aluminum plates in a splicing manner, the drainage device is provided with a drainage groove and a drainage outlet, and the drainage outlet extends to the outside of the shell; according to the aluminum alloy drainage device, the sealing rubber strip is arranged at the edge of the notch of the drainage device, and when the access door is closed, the access door is tightly pressed on the sealing rubber strip, so that water is prevented from entering the cover.
3. The aluminum alloy sealing plates at the front end and the rear end of the cover shell are provided with the stamped ventilation grids, so that air can be fed from the front grids and exhausted from the rear grids when a vehicle runs, the heat in the cover can be taken away, the heat can be dissipated and cooled in time, and the folded edges below the sealing plates can be fixed on the top cover through bolts.
4. The movable sealing plates on the two sides of the aluminum alloy sealing plate are made of aluminum alloy, the movable sealing plates are fixed on the two sides of the sealing plate at the front end and the rear end, and gaps on the two sides can be eliminated by the movable sealing plates after the cover cap is fixed on the top cover, so that a sealing effect is achieved. Therefore, the invention meets the requirements of the shape and the light weight of the whole vehicle, meets the requirements of battery maintenance, water resistance, ventilation and heat dissipation, and has the advantages of low manufacturing cost, convenient installation and higher manufacturability.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the explosive structure of the present invention.
Fig. 3 is a schematic view of the installation structure of the present invention.
Fig. 4 is a schematic view of an access door opening structure of the present invention.
Fig. 5 is a schematic view of the internal structure of the access door of the present invention.
FIG. 6 is a schematic view of the structure of the drainage device of the present invention.
FIG. 7 is a top view of the structure of the drainage device of the present invention.
Fig. 8 is an elevation view of a closure plate construction of the present invention.
In the figure: 1. a housing; 101. a rain shield; 2. an aluminum alloy rectangular tube framework; 3. an access door; 301. aluminum alloy plate; 302. an adhesive layer; 303. an aluminum honeycomb core; 4. rotating the lock; 5. a hinge; 6. closing the plate; 601. a ventilation grille; 7. a movable closing plate; 8. sealing rubber strips; 9. a drainage device; 901. a water discharge tank; 902. and a water discharge outlet.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a light-weight power battery cover assembly with an open top for a low-entry city bus comprises a shell 1, an aluminum alloy rectangular pipe framework 2, two access doors 3 and a drainage device 9, wherein the shell 1 is made of aluminum plate made of aluminum alloy, the two sides of the shell 1 are bent and fixed on a bus top molding part through screws, the two sides of the shell 1 are bent, the two access doors are respectively arranged at the two sides above the middle part of the shell 1, the access doors 3 are arranged on the shell 1 through hinge hinges 5, the access doors 3 are arranged on the cover shell through hinge hinges 5 and locked through rotary locks 4, when needing to be maintained, the locks 4 are opened and the access doors are turned over, so that the maintenance can be performed, one ends of the access doors 3 far away from the hinge hinges 5 are connected with the shell 1 through the rotary locks 4, seal plates 6 are welded at the two ends of the shell 1, the seal plates 6 are made of aluminum, when a vehicle runs, air can be fed from the ventilation grating 601 on the sealing plate 6 at one end of the shell 1, the rear grating exhausts air, the heat in the cover cap is taken away, and timely heat dissipation and cooling are achieved;
an aluminum alloy rectangular pipe framework 2 is welded below the shell 1 and used for supporting the shell and fixing a drainage device 9 inside the shell, the drainage device 9 is welded below the aluminum alloy rectangular pipe framework 2, drainage grooves 901 in a shape like a Chinese character 'kou' are formed in two sides of the drainage device 9, and drainage outlets 902 are formed in the edges of two ends of each drainage groove 901;
wherein, the cover is equipped with joint strip 8 in the notch of water drainage tank 901, and when the access door was closed, access door 3 compressed tightly joint strip 8, prevented that water from getting into inside the shroud.
Two access doors 3 are the symmetry and set up, and access door 3 is light-duty honeycomb aluminum plate material, and both ends all are provided with aluminum alloy plate 301 about access door 3, two aluminum alloy plate 301 inner walls all are provided with binder layer 302, and be provided with aluminium matter honeycomb core 303 between two binder layers 302, the steel sheet is lighter than the aluminum alloy plate material, aluminium matter honeycomb core 303 weight ratio rectangular pipe tailor-welded structure is light, guarantee access door 3's bulk strength, the binder combines door plant and aluminium matter honeycomb core 303 together effectively.
And a folded edge is arranged below the sealing plate 6 and is fixed on a top cover of the passenger car through a bolt.
The drainage device 9 is formed by welding aluminum plates, the drainage device 9 is provided with a drainage groove 901 and a drainage outlet 902, and the drainage outlet 902 extends to the outside of the shell 1; the aluminum alloy drainage device 9 is arranged on the sealing rubber strip 8 at the edge of the notch of the drainage device, and when the access door 3 is closed, the access door 3 tightly presses the sealing rubber strip 8 to prevent water from entering the cover.
The drain outlet 902 extends to the outside of the housing 1.
The shell 1, the framework 2, the drainage device 9 and the sealing plate 6 are all made of aluminum alloy plates, two sides of the shell 1 are fixed on a vehicle top molding part through screws, rain baffles 101 are welded at the front and the back of the shell 1 to prevent rainwater from entering a water outlet, 2 access doors 3 at the top of the cover are made of light honeycomb aluminum plates and are lighter than common aluminum alloy doors, the size of the access doors can be reasonably designed in combination with space for battery maintenance and even removal, the access doors 3 are installed on the cover shell 1 through hinge hinges 5 and are locked through rotary locks 4, and when maintenance is needed, the locks 4 are opened and the access doors 3 are turned over, so that maintenance can be carried out, and the maintenance is very convenient;
an aluminum alloy rectangular pipe framework 2 is welded below a shell 1 part and used for supporting the shell 1 and fixing a drainage device 9 inside, the aluminum alloy drainage device 9 is welded below the aluminum alloy rectangular pipe framework and is formed by welding aluminum plates in a splicing mode, the drainage device is provided with a drainage groove 901 and a drainage outlet 902, and the drainage outlet 902 extends to the outside of the shell 1; according to the aluminum alloy drainage device 9, the sealing rubber strip 8 is arranged at the edge of the notch of the drainage device, when the access door 3 is closed, the access door 3 tightly presses the sealing rubber strip 8, and water is prevented from entering the cover cap;
the aluminum alloy sealing plates 6 at the front end and the rear end of the cover shell 1 are provided with the stamped ventilation grids 601, so that air can be supplied from the front grids and exhausted from the rear grids when a vehicle runs, the heat in the cover can be taken away, the heat can be dissipated and cooled in time, and the lower folded edges of the sealing plates 6 can be fixed on the top cover through bolts;
the movable sealing plates 7 on the two sides of the aluminum alloy sealing plate are made of aluminum alloy, the movable sealing plates 7 are fixed on the two sides of the sealing plate at the front end and the rear end, and gaps on the two sides can be eliminated by the movable sealing plates after the cover cap is fixed on the top cover, so that a sealing effect is achieved.
The assembling method of the power battery cover assembly comprises the following steps: after the top battery is installed, the battery directly falls on the top of the vehicle through a hoisting tool, the bent parts on the two sides of the shell 1 are directly fixedly installed by using screws after being lapped with the top molding part, and the bent parts on the lower sides of the front and rear sealing plates 6 are directly fixedly installed by using screws after being lapped with the top cover skin. After the cover is fixed, the movable sealing plate 7 fills gaps between two sides and the top forming part, and is directly fixed with the front and rear sealing plates 6 by using screws. When the maintenance is needed, the rotary lock 4 on the top access door 3 is opened, the access door 3 is rotated, and the inside of the cover cap is maintained.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. The utility model provides a low entry city bus open-top lightweight power battery shroud assembly, includes casing (1), aluminum alloy quarter bend skeleton (2), two access doors (3) and drainage device (9), its characterized in that: the shell (1) is made of aluminum plates made of aluminum alloy materials, two sides of the shell (1) are bent, two access doors are respectively arranged on two sides above the middle of the shell (1), the access doors (3) are installed on the shell (1) through hinge hinges (5), one ends, far away from the hinge hinges (5), of the access doors (3) are connected with the shell (1) through rotary locks (4), sealing plates (6) are welded at two ends of the shell (1), the sealing plates (6) are made of aluminum alloy materials, a stamped ventilation grid (601) is arranged in the middle of each sealing plate (6), and movable sealing plates (7) are arranged on two sides of each sealing plate (6);
an aluminum alloy rectangular pipe framework (2) is welded below the shell (1), a drainage device (9) is welded below the aluminum alloy rectangular pipe framework (2), drainage grooves (901) of a square-shaped structure are formed in two sides of the drainage device (9), and drainage outlets (902) are formed in the edges of two ends of each drainage groove (901);
wherein, a sealing rubber strip (8) is sleeved in the notch of the drainage groove (901).
2. The open-top, lightweight power battery cover assembly of a low-entry city bus according to claim 1, wherein rain baffles (101) are welded to both ends of the housing (1).
3. The open-top lightweight power battery cover assembly of the low-entrance urban bus according to claim 1, wherein two access doors (3) are symmetrically arranged, the access doors (3) are made of light honeycomb aluminum plates, aluminum alloy plates (301) are arranged at the upper end and the lower end of each access door (3), adhesive layers (302) are arranged on the inner walls of the two aluminum alloy plates (301), and an aluminum honeycomb core (303) is arranged between the two adhesive layers (302).
4. The open-top, lightweight power cell cover assembly for a low-entry city bus according to claim 1, wherein a folded edge is arranged below the sealing plate (6), and the folded edge is fixed on a top cover of the bus through bolts.
5. A low-entry city bus top-open lightweight power battery cover assembly as defined in claim 1, wherein the drain (9) is made of aluminum plate by tailor welding.
6. A low entry city bus open-top lightweight power battery cover assembly as claimed in claim 1 wherein the drain outlet (902) extends to the outside of the housing (1).
7. A low entry city bus top open lightweight power battery cover assembly as claimed in claim 1 wherein the access door (3) is pivotally connected to a hinge (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010296978.2A CN111477793A (en) | 2020-04-15 | 2020-04-15 | Open lightweight power battery shroud assembly in low entry city bus top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010296978.2A CN111477793A (en) | 2020-04-15 | 2020-04-15 | Open lightweight power battery shroud assembly in low entry city bus top |
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| Publication Number | Publication Date |
|---|---|
| CN111477793A true CN111477793A (en) | 2020-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010296978.2A Pending CN111477793A (en) | 2020-04-15 | 2020-04-15 | Open lightweight power battery shroud assembly in low entry city bus top |
Country Status (1)
| Country | Link |
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| CN (1) | CN111477793A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113428238A (en) * | 2021-08-04 | 2021-09-24 | 安徽安凯汽车股份有限公司 | Novel top structure of electric motor coach |
| CN113799833A (en) * | 2021-09-26 | 2021-12-17 | 中车唐山机车车辆有限公司 | Bogie bilge plate assembly, bogie and railway vehicle |
| WO2022226622A1 (en) * | 2021-04-30 | 2022-11-03 | Marcopolo S.A. | Unit for storing electrification items, public service vehicle and method for mounting the unit on the vehicle |
| WO2023000064A1 (en) * | 2021-07-20 | 2023-01-26 | Marcopolo S.A. | Public service vehicle, electrical unit and method for mounting the electrical unit on the vehicle |
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| CN108790766A (en) * | 2018-07-25 | 2018-11-13 | 金龙联合汽车工业（苏州）有限公司 | A kind of integral new-energy passenger overhead battery cover |
| CN208149046U (en) * | 2018-04-19 | 2018-11-27 | 厦门金龙联合汽车工业有限公司 | The water-proof type of battery flat slides cabin door structure on a kind of passenger-car roof |
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| JPH11213976A (en) * | 1998-01-21 | 1999-08-06 | Nissan Motor Co Ltd | Battery fixing structure and battery cooling method of electric vehicle |
| US20160056516A1 (en) * | 2014-08-25 | 2016-02-25 | Ford Global Technologies, Llc | Traction battery assembly with thermal device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022226622A1 (en) * | 2021-04-30 | 2022-11-03 | Marcopolo S.A. | Unit for storing electrification items, public service vehicle and method for mounting the unit on the vehicle |
| WO2023000064A1 (en) * | 2021-07-20 | 2023-01-26 | Marcopolo S.A. | Public service vehicle, electrical unit and method for mounting the electrical unit on the vehicle |
| CN113428238A (en) * | 2021-08-04 | 2021-09-24 | 安徽安凯汽车股份有限公司 | Novel top structure of electric motor coach |
| CN113799833A (en) * | 2021-09-26 | 2021-12-17 | 中车唐山机车车辆有限公司 | Bogie bilge plate assembly, bogie and railway vehicle |
| CN113799833B (en) * | 2021-09-26 | 2023-01-24 | 中车唐山机车车辆有限公司 | Bogie bilge plate assembly, bogie and railway vehicle |
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Application publication date: 20200731 |
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