WO2019178912A1 - Véhicule électrique, ensemble châssis, ensemble bloc de maintien à la presse et ensemble batterie associé - Google Patents

Véhicule électrique, ensemble châssis, ensemble bloc de maintien à la presse et ensemble batterie associé Download PDF

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Publication number
WO2019178912A1
WO2019178912A1 PCT/CN2018/084258 CN2018084258W WO2019178912A1 WO 2019178912 A1 WO2019178912 A1 WO 2019178912A1 CN 2018084258 W CN2018084258 W CN 2018084258W WO 2019178912 A1 WO2019178912 A1 WO 2019178912A1
Authority
WO
WIPO (PCT)
Prior art keywords
assembly
wall
main frame
nut
block
Prior art date
Application number
PCT/CN2018/084258
Other languages
English (en)
Chinese (zh)
Inventor
王细冬
Original Assignee
深圳市大富科技股份有限公司
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 深圳市大富科技股份有限公司 filed Critical 深圳市大富科技股份有限公司
Priority to CN201880041268.6A priority Critical patent/CN110770060A/zh
Publication of WO2019178912A1 publication Critical patent/WO2019178912A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members

Definitions

  • the present invention relates to the field of battery technology for electric vehicles, and more particularly to an electric vehicle and its chassis assembly, a pressure holding block assembly and a battery assembly.
  • the invention is a battery quick change structure proposed for a quick change battery mode of an electric vehicle.
  • the present invention provides an electric vehicle and its chassis assembly, a pressure holding block assembly and a battery assembly for the above technical problems, which can reduce the damage of the fixing assembly and improve the service life of the fixing assembly.
  • chassis assembly for an electric vehicle, the chassis assembly comprising a main frame and a plurality of support blocks, the main frame being surrounded by an accommodating space for accommodating the battery assembly, and the support block protruding Provided on the inner wall of the main frame, the support block is used to support the battery assembly.
  • Another technical solution adopted by the present invention is to provide a pressing block assembly for an electric vehicle, the pressing block assembly protruding from the side wall of the battery assembly, and the pressing block assembly for pressing and connecting on the supporting block, To fix the battery pack.
  • Another technical solution adopted by the present invention is to provide a battery assembly for an electric vehicle for assembling to a chassis assembly of an electric vehicle to provide energy for the electric vehicle, the chassis assembly having an accommodation space, and a battery assembly
  • the utility model comprises a battery box and a plurality of pressing block assemblies, wherein the pressing block assembly protrudes from a side wall of the battery box, and the pressing block assembly is used for pressing and connecting the battery assembly after lifting and loading laterally from the bottom of the accommodating space On the chassis assembly.
  • the chassis assembly includes a main frame and a plurality of support blocks, and the main frame is surrounded by an accommodating space for accommodating
  • the battery assembly has a support block protruding from an inner wall of the main frame, and the support block is configured to connect and support the battery assembly after the battery assembly is lifted into the accommodating space from the bottom of the main frame and moved laterally.
  • the utility model has the beneficial effects that the chassis assembly of the present invention comprises a main frame and a plurality of support blocks, and the main frame is surrounded by an accommodating space for accommodating the battery assembly, and the support block protrudes from the prior art.
  • the inner wall of the main frame is disposed, and the support block is configured to connect and support the battery assembly after the battery assembly is lifted into the accommodating space from the bottom of the main frame and moved laterally. Since the weight of the battery assembly is entirely supported by the support block, the damage of the battery assembly is greatly reduced, and the service life of the battery assembly is improved.
  • FIG. 1 is a schematic structural view of an electric vehicle chassis assembly and a battery assembly according to an embodiment of the present invention
  • FIG. 2 is a bottom view of the electric vehicle chassis assembly and the battery assembly of FIG. 1 after assembly;
  • FIG. 3 is a schematic structural view of the chassis assembly and the battery assembly of FIG. 1 after being exploded;
  • Figure 4 is a schematic cross-sectional view of the main frame
  • FIG. 5 is an enlarged plan view showing the structure of the chassis assembly A of Figure 3;
  • Figure 6 is a cross-sectional view of the support block in the chassis assembly
  • Figure 7 is a partial enlarged view of the area of the battery assembly B of Figure 3;
  • Figure 8 is a cross-sectional view of a pressure holding block in a battery assembly
  • Figure 9 is a cross-sectional view showing the chassis assembly and the battery assembly of Figure 3 assembled
  • Figure 10 is a partial enlarged view of the area C in Figure 9;
  • FIG 11 is a schematic view showing the structure of the fixing assembly of the chassis assembly and the battery assembly of Figure 3.
  • first and second in this application are used for descriptive purposes only, and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise. All directional indications (such as up, down, left, right, front, back, ...) in the embodiments of the present application are only used to explain the relative positions between the components in a certain posture (as shown in the drawing).
  • references to "an embodiment” herein mean that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the present application.
  • the appearances of the phrases in various places in the specification are not necessarily referring to the same embodiments, and are not exclusive or alternative embodiments that are mutually exclusive. Those skilled in the art will understand and implicitly understand that the embodiments described herein can be combined with other embodiments.
  • FIG. 1 is a schematic structural view of an electric vehicle chassis assembly and a battery assembly according to an embodiment of the present invention
  • FIG. 2 is a bottom view of the electric vehicle chassis assembly and the battery assembly of FIG.
  • the electric vehicle includes a chassis assembly 10 and a battery assembly 20, and the chassis assembly 10 includes a main frame 110 and a plurality of support blocks 120.
  • the main frame 110 is surrounded by an accommodation space 114 for accommodating the battery assembly 20, and the support block 120 protrudes.
  • the inner wall 115 of the main frame 110 is disposed for supporting the battery assembly 20 after the battery assembly 20 is lifted into the accommodating space 114 from the bottom of the main frame 110 and laterally moved, and the support block 120 is connected to support the battery assembly 20.
  • the chassis assembly 10 further includes a front axle mechanism 140 and a rear axle mechanism 160, the front axle mechanism 140 and the rear axle mechanism 160 being fixed to both ends of the main frame 110, respectively.
  • the specific structure of the front axle mechanism 140 and the rear axle mechanism 160 will not be described in detail herein within the understanding of those skilled in the art.
  • FIG. 3 is a schematic structural view of the chassis assembly and the battery assembly of FIG.
  • the chassis assembly 10 includes a main frame 110 and a plurality of support blocks 120.
  • the main frame 110 is defined as an accommodating space 114 for accommodating the battery assembly 20.
  • the support block 120 is disposed from the inner wall 115 of the main frame 110.
  • the support block 120 is disposed.
  • the battery assembly 20 is supported after the battery assembly 20 is lifted into the accommodating space 114 from the bottom of the main frame 110 and laterally moved, and the support block 120 is connected to support the battery assembly 20.
  • the inner wall of the main frame 110 is provided with a escaping space (refer to 111 in FIG. 2), and the escaping space is not provided with the supporting block 120, so that the battery assembly 20 can be smoothly lifted from the bottom of the main frame 110 into the accommodating space 114 and moved laterally.
  • the rear leg is placed on the support block 120, the length of the escape space being at least greater than the width of the battery assembly 20 or at least greater than the length of the battery assembly 20.
  • the inner wall of the main frame 110 may not be provided with a escaping space, and the battery assembly 20 is laterally lifted from the bottom of the main frame 110 through the slit region of the support block 120 into the accommodating space 114 and rotated and moved laterally. On the support block 120.
  • the inner wall 115 of the main frame 110 includes a first inner wall 1151, a second inner wall 1152, a third inner wall 1153, and a fourth inner wall 1154, and the first inner wall 1151, the second inner wall 1152, the third inner wall 1153, and the fourth inner wall 1154
  • the first inner wall 1151 and the second inner wall 1152 are oppositely disposed, and the third inner wall 1153 and the fourth inner wall 1154 are oppositely disposed.
  • the first inner wall 1151 and the second inner wall 1152 are correspondingly provided with an equal number of supports.
  • the distance between adjacent support blocks 120 is greater than or equal to the width dimension of the pressure holding block 240.
  • the third inner wall 1153 is provided with a support block 120.
  • the fourth inner wall 1154 is not provided with the support block 120.
  • the fourth inner wall 1154 is formed with a escaping space for escaping the battery assembly.
  • the battery assembly 20 is lifted from the bottom of the fourth inner wall 1154 into the accommodating space 114. And after being laterally moved, it is simultaneously held on the support block 120 of the first inner wall 1151, the second inner wall 1152, and the third inner wall 1153.
  • the main frame 110 has a polygonal structure, so that the main frame 110 can be surrounded by a large battery accommodating space 114, and the battery assembly 20 is adapted to the peripheral contour of the accommodating space 114, so that the battery assembly 20 is The installation is accommodated in the accommodating space 114 enclosed by the main frame 110 to maximize the capacity of the battery in the battery assembly 20, so that the electric vehicle has a larger cruising range under a certain outline size.
  • the battery assembly 20 is incompatible with the outline of the main frame 110.
  • the relief space 111 disposed on the inner wall of the main frame 110 may be at least one side of the main frame 110 facing away from the receiving space.
  • the direction of the center of the 114 is expanded, the inner contour of the main frame 110 is larger than the outer contour of the battery assembly 20, the main frame 110 has a large escape space with respect to the battery assembly 20, and the battery assembly 20 can be lifted from the bottom of the main frame 110.
  • the accommodation space 114 is placed on the support block 120 after being laterally moved.
  • the chassis assembly includes a main frame and a plurality of support blocks.
  • the main frame is surrounded by an accommodating space for accommodating the battery assembly.
  • the support block protrudes from the inner wall of the main frame, and the support block is used for the battery.
  • the assembly is lifted from the bottom of the main frame into the accommodating space and moved laterally to connect the supporting battery pack. Since the weight of the battery assembly is all supported by the support block, the damage of the battery assembly is greatly reduced, the service life of the fixed assembly is improved, and the risk of the battery assembly falling off during the running of the electric vehicle is also reduced.
  • the chassis assembly 10 further includes a closure cover 130.
  • the main frame 110 is a sheet metal member.
  • the main frame 110 has a semi-enclosed structure with an open area. In the direction of the vertical accommodation space 114, the cover 130 is closed. It is provided on the main frame 110 to seal the opening area of the main frame 110.
  • the advantage of the sheet metal parts is that the manufacturing process is simple, and the production materials required for the same size are greatly reduced, and the weight of the main frame 110 is reduced, thereby further reducing the overall weight of the electric vehicle, making the electric vehicle more portable. The less power needed, the less power is consumed.
  • the outer cover of the main frame 110 is closed on the main frame 110 to seal the open area of the main frame 110.
  • closure cap 130 is provided with a reinforcing protrusion 132 to enhance the strength of the closure cap 130.
  • the closing cover 130 is a stamped molding, and the reinforcing protrusion 132 disposed on the upper surface thereof includes a first reinforcing protrusion 1322 and a second reinforcing protrusion 1324, and the closing cover 130 is stamped to form a first reinforcing protrusion disposed perpendicularly to each other. 1322 and second reinforcing protrusion 1324.
  • the sealing cover 130 is processed by stamping to be more convenient and quick, and the production process is simple, and is suitable for mass production.
  • FIG. 4 is a schematic cross-sectional view of the main frame.
  • the main frame 110 includes a bottom wall 112, an outer wall 113 and an inner wall 115.
  • the inner wall 115 and the outer wall 113 are disposed at opposite ends of the bottom wall 112 so as to be enclosed as an opening area 117 of the main frame, and the inner wall 115 is used to protrude the support block.
  • the outer wall 113 and the inner wall 115 extend out of the contact platform 116 relative to each other.
  • the advantage that the cross section of the main frame 110 adopts the semi-enclosed structure having the open area 117 is that when a sudden external force is applied to the electric vehicle chassis platform, the outer wall 113 is deformed first, and the outer wall 113 is deformed against the inner wall 115. It does not cause a large impact, and has a good buffering effect, thereby better protecting the battery assembly 20 located in the content space 114 of the main frame 110, preventing the battery assembly 20 from being deformed or even damaged due to an external force.
  • the two sides of the opening area 117 of the main frame 110 are oppositely extended to contact the platform 116, and the closing cover 130 is in contact with the contact platform 116 to increase the contact area of the closing cover 130 with the main frame 110.
  • the unit pressure obtained by closing the lid 130 is smaller under the premise of the same weight of the closure cap 130, thereby sealing the opening region 117 of the main frame 110 more stably.
  • the closing cover 130 can effectively prevent foreign matter from entering the opening area 117 of the main frame 110.
  • FIG. 5 is an enlarged view of the structure of the chassis assembly A of FIG. 3, and FIG. 6 is a sectional view of the support block in the chassis assembly.
  • the support block 120 is protruded from the inner wall of the main frame 110, and the main frame 110 and the support block 120 are welded structures.
  • the welded connection mode is simple in structure, and has high connection strength and low technical requirements, and is suitable for mass production.
  • a plurality of support blocks 120 are welded on the inner side of the main frame 110 of the chassis assembly 10 for supporting the battery assembly 20 after the battery assembly 20 is lifted from the bottom of the main frame 110 into the accommodating space 114 and laterally moved.
  • the support block 120 is connected to support the battery assembly 20.
  • the support block 120 is provided with a flat plate 122 in a contact area with the battery assembly 20, and the other side of the flat plate 122 is provided with a screw groove 124, and the through plate 122 is provided with a second mounting hole 126.
  • the battery assembly 20 is used for assembling the chassis assembly 10 to provide energy for the electric vehicle.
  • the chassis assembly 10 is provided with an accommodating space 114.
  • the battery assembly 20 includes a pressure holding block assembly 210 and a battery box 220.
  • the block assembly 210 includes a fixing assembly 30 and a pressing block 240 fixedly disposed outside the battery case 220.
  • the supporting block 120 supports the pressing block 240 and is detachably connected to the pressing block 240 through the fixing assembly 30.
  • the battery case 220 and the pressing block 240 are welded structures or integrally formed structures.
  • the pressing block 240 is uniformly welded to the side wall of the battery case 220 by welding, wherein the pressing block 240 is integrally formed regardless of the welding manner.
  • the position of the pressing block 240 is in one-to-one correspondence with the position of the supporting block 120 in the chassis assembly 10, so as to ensure that the battery assembly 20 is pressed and held in the chassis assembly after being lifted and laterally moved from the bottom of the accommodating space 114. 10, and the chassis assembly 10 is supported to support the battery assembly 20.
  • the side peripheral contour of the battery case 220 and the outline of the area surrounded by the chassis assembly 10 are used in production.
  • the battery case 220 is fabricated in a suitable manner, which on the one hand increases the capacity of the battery and makes it more convenient when the battery is inserted.
  • FIG. 7 is a partial enlarged view of the battery pack B region of FIG. 3, and FIG. 8 is a cross-sectional view of the pressure holding block in the battery assembly.
  • the pressing block 240 is evenly disposed on the side wall of the battery case 220.
  • the position of the pressing block 240 is in one-to-one correspondence with the position of the supporting block 120.
  • the supporting block 120 is used for supporting the pressing block 240 to further support the battery case 220.
  • the contact portion of the pressing block 240 and the supporting block 120 is a flat surface 242.
  • the pressing block 240 is further provided with a nut groove 244 and a first mounting hole 246 penetrating the nut groove 244, and the nut groove 244 is away from the supporting block 120 side.
  • a retaining ring receiving groove 248 is also provided.
  • FIG. 9 is a schematic cross-sectional view of the chassis assembly and the battery assembly of FIG. 3, and FIG. 10 is a partial enlarged view of the area C of FIG.
  • the fixing assembly 30 includes a screw 32 and a nut 34.
  • the support block 120 is provided with a screw groove 124 and a second mounting hole 126 extending through the screw groove 124.
  • the pressing block 240 is provided with a nut groove 244 and a through nut groove 244.
  • the first mounting hole 246, the first mounting hole 246 corresponds to the second mounting hole 126
  • the nut groove 244 is matched with the shape of the nut 34
  • the screw 32 passes through the second mounting hole 126 and the first mounting hole 246 and the nut
  • the detachable connection is 34.
  • the head of the screw 32 is received in the screw slot 124, and the nut 34 is received in the nut groove 244.
  • the battery assembly 20 is first lifted from the bottom of the main frame 110 into the accommodating space 114 and moved laterally, and the pressing block 240 on the side wall of the battery assembly 20 is placed.
  • the pressing block 240 and the support block 120 are then joined together by the fixing assembly 30, thereby preventing the battery assembly 20 from moving in the horizontal plane, thereby avoiding damage to the battery.
  • the nut 34 in the fixing assembly 30 employs a hex nut 34.
  • the pressing block 240 on the side wall of the battery assembly 20 is placed on the support block 120 on the inner wall of the main frame 110, and the hexagon is The nut 34 is placed in the nut groove 244 on the pressing block 240; then the retaining ring 36 is a deformable part, and the retaining ring 36 is compressed through the first mounting hole 246, and the retaining ring 36 is released and placed in the retaining ring receiving groove 248.
  • the last screw 32 is inserted into the support block 120 from the screw slot 124 of the support block 120 and the second mounting hole 126 of the through screw slot 124, and the screw 32 is rotated such that the screw 32 is threadedly engaged with the hex nut 34 located in the nut groove 244. connection.
  • the holding block 240 is thereby fixed to further prevent the battery pack 20 from moving in the horizontal plane.
  • the advantage of this type of mounting is that the weight of the battery assembly 20 acts directly on the mounting surface of the support assembly 120 of the chassis assembly 10, and the screw 32 coupling only serves to prevent displacement of the battery assembly 20, so that the screw 32 is not affected by the battery assembly 20.
  • the effect of gravity reduces the risk of the screw 32 slipping causing the battery assembly 20 to fall.
  • the retaining ring 36 prevents the nut 34 from moving in the axial direction, avoiding the risk of the nut 34 falling off.
  • the retaining ring 36 is a deformable part, the retaining ring receiving groove 248 may not be disposed, and the retaining ring 36 is elastically contracted into the first mounting hole 246 and is in contact with the nut 244.
  • FIG. 11 is a structural schematic view of the fixing assembly of the chassis assembly and the battery assembly of FIG.
  • the hex nut 34 is selected due to the contoured structure of the hex nut 34, the nut groove 244 on the pressing block 240 is matched with the hex nut 34, so that the nut 34 does not fit in the counterbore when the screw 32 is tightened.
  • the screw 32 and the nut 34 can be fixed and fixed by simply turning the screw 32.
  • the advantage of this type of mounting is that the battery pack 20 can be replaced quickly and easily.
  • the function of the retaining ring 36 is to provide a limiting force to the nut 34 in the axial direction of the nut 34, to prevent the hex nut 34 from falling out of the nut groove 244, and the retaining ring 36 is an open retaining ring 36.
  • the advantage of the opening retaining ring 36 is that It can be easily taken out from the nut groove 244, so that the nut 34 can be replaced after the nut 34 is used for a long time to prevent the thread from sliding.
  • the present application also provides an embodiment of a chassis assembly 10 for an electric vehicle that includes the chassis assembly 10 of any of the above.
  • the present application also provides an embodiment of a pressure holding block assembly 210 for an electric vehicle that includes a pressure holding block assembly 210 of any of the above.
  • the present application also provides an embodiment of a battery assembly 20 for an electric vehicle that includes the battery assembly 20 of any of the above.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Battery Mounting, Suspending (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

L'invention concerne un véhicule électrique et un ensemble châssis, un ensemble bloc de maintien à la presse et un ensemble batterie associé. Le véhicule électrique comprend l'ensemble châssis et l'ensemble batterie, l'ensemble châssis comprenant un cadre principal et une pluralité de blocs de support ; le cadre principal renferme un espace de réception permettant de recevoir l'ensemble batterie ; et les blocs de support font saillie hors d'une paroi interne du cadre principal et sont utilisés pour raccorder et supporter l'ensemble batterie une fois que l'ensemble batterie est soulevé du bas du cadre principal pour être chargé dans l'espace de réception et est déplacé transversalement. Au moyen du procédé, la présente invention peut réduire l'endommagement de l'ensemble batterie et améliorer la durée de vie de l'ensemble batterie.
PCT/CN2018/084258 2018-03-22 2018-04-24 Véhicule électrique, ensemble châssis, ensemble bloc de maintien à la presse et ensemble batterie associé WO2019178912A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201880041268.6A CN110770060A (zh) 2018-03-22 2018-04-24 一种电动车及其底盘组件、压持块组件和电池组件

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNPCT/CN2018/079973 2018-03-22
CN2018079973 2018-03-22

Publications (1)

Publication Number Publication Date
WO2019178912A1 true WO2019178912A1 (fr) 2019-09-26

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PCT/CN2018/084258 WO2019178912A1 (fr) 2018-03-22 2018-04-24 Véhicule électrique, ensemble châssis, ensemble bloc de maintien à la presse et ensemble batterie associé

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CN (1) CN110770060A (fr)
WO (1) WO2019178912A1 (fr)

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US11608115B2 (en) * 2019-10-02 2023-03-21 Hyundai Mobis Co., Ltd. Chassis platform module for electric vehicle

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