CN218858135U - Vehicle body structure - Google Patents

Abstract

The utility model provides a vehicle body structure, including frame, battery package and sealing ring. The frame is provided with an up-down through hollow window; the battery pack comprises a lower shell and an upper shell covering the lower shell; the outer side surface of the lower shell is fixedly connected with a lower sealing rib; the periphery of the lower sealing rib is arranged on the periphery of the lower shell, and the periphery of the sealing ring is arranged and fixed on the upper end surface of the lower sealing rib; the sealing ring is clamped between the bottom surface of the frame and the upper end face of the lower sealing rib in a sealing mode, sealing between the battery pack and the frame is guaranteed, water is effectively prevented from entering the frame through the hollow window, and wading protection in the frame is achieved. Through the sealing of the battery pack and the sealing between the battery pack and the frame, the battery pack and the sealing between the battery pack and the frame are ensured, water is effectively prevented from entering the battery pack and the frame, and the normal use of a vehicle is effectively ensured.

Description

Vehicle body structure

Technical Field

The utility model relates to an automobile parts field, in particular to body structure.

Background

Along with the development of battery technology and the continuous promotion of whole car integration, lightweight, the structure of battery and automobile body is inseparabler more and more, in order to further practice thrift the vertical space of battery, reduces whole car cost, improves whole car production efficiency, and battery and automobile body integrated design are brought into the research and development scope by more and more whole car enterprises, battery enterprise.

In the existing market, the battery pack of the electric automobile is located at the bottom of the whole automobile frame, but in the use process of the electric automobile, because the electric automobile can involve working conditions such as wading and washing, water flow is easy to enter the battery pack or the automobile frame, and the normal use of the automobile is affected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automobile body structure to guarantee the battery package and the frame between sealed, in the effectual water entering battery package of avoiding and the frame, the normal use of effectual assurance vehicle.

In order to solve the technical problem, the utility model adopts the following technical scheme:

according to one aspect of the present invention, the present invention provides a vehicle body structure, comprising a frame, a battery pack, and a sealing ring; the frame is provided with an up-down through hollow window; the battery pack is positioned below the hollow-out window; the battery pack comprises a lower shell and an upper shell covering the lower shell; the upper shell and the lower shell are enclosed to form a sealed accommodating chamber for accommodating a battery; the lower shell circumferentially exceeds the upper shell; the lower shell is fixed on the frame and covers the lower part of the hollow window; a lower sealing rib is fixedly connected to the outer side surface of the lower shell; the lower sealing rib is circumferentially arranged on the periphery of the lower shell; the sealing ring is arranged around the circumference and fixed on the upper end surface of the lower sealing rib; the sealing ring is clamped between the bottom surface of the frame and the upper end surface of the lower sealing rib in a sealing manner.

In some embodiments of the present application, the lower case includes a tray portion, and a connection portion protruding at an outer periphery of the tray portion; the tray part is provided with a cavity with an opening at the upper end; the upper shell is fixedly and hermetically connected to the upper end of the tray part; the connecting part is fixedly connected with the frame; the lower sealing rib is fixedly connected to the periphery of the tray portion and located above the connecting portion.

In some embodiments of the present application, the lower sealing rib includes a supporting section fixed on the outer periphery of the tray portion, and an abutting section extending from an upper end of the supporting section away from the tray portion; the top abutting section is horizontally arranged, and the sealing ring is fixed on the upper surface of the top abutting section.

In some embodiments of the present application, a lower end of the support section is fixed to an outer periphery of the tray portion, and an upper end of the support section extends in a direction from bottom to top toward a direction away from the tray portion, so that the lower seal rib has elasticity.

In some embodiments of the present application, the edge of the upper case is sealingly connected to the upper end of the tray part, and the upper case covers the upper end opening of the tray part.

In some embodiments of the present application, a fastening nut is disposed on the tray portion, a fastening bolt is disposed between the upper housing and the tray portion, and the fastening bolt sequentially passes through the upper housing and the tray portion and is screwed on the fastening nut, so that the upper housing is fixed on the tray portion.

In some embodiments of the present application, the upper case includes an upper panel, and an edge plate disposed at an edge of the upper panel; the edge plate extends downwards from the edge of the upper panel and then extends along the horizontal and outward direction; the edge plate is fixed on the tray part.

In some embodiments of the present application, a seal ring is clamped between the upper surface of the tray portion and the upper housing; the sealing ring is arranged around the periphery and attached to the upper surface of the tray part.

In some embodiments of the present application, the bottom of the frame is formed with a downwardly projecting protrusion; the protruding part comprises a fastening section arranged horizontally and extending sections extending upwards from two ends of the fastening section to the frame respectively; the lower surface of the extension section is attached to the connecting part, and the extension section is fixedly connected to the connecting part.

In some embodiments of the present application, a reinforcing plate is disposed on the fastening section, and the reinforcing plate is fixed and attached to an upper surface of the fastening section; a fixing nut is attached to the upper surface of the reinforcing plate, and a fixing bolt penetrates through the connecting part; the fixing bolt vertically penetrates through the connecting portion and is in threaded connection with the fixing nut.

According to the above technical scheme, the utility model discloses following advantage and positive effect have at least:

the utility model discloses in, set up the fretwork window that link up from top to bottom on the frame to reduce the use of material on the frame, reduced the cost of production. The lower shell and the lower shell of the battery pack are enclosed to form a sealed accommodating chamber for accommodating the battery, so that the battery pack is sealed.

The outer side surface of the lower shell is fixedly connected with a lower sealing rib; the periphery of the lower sealing rib is arranged on the periphery of the lower shell, and the periphery of the sealing ring is arranged and fixed on the upper end surface of the lower sealing rib; the sealing ring is clamped between the bottom surface of the frame and the upper end face of the lower sealing rib in a sealing mode, sealing between the battery pack and the frame is guaranteed, water is effectively prevented from entering the frame through the hollow window, and wading protection in the frame is achieved. Through the sealing of the battery pack and the sealing between the battery pack and the frame, the battery pack and the sealing between the battery pack and the frame are ensured, water is effectively prevented from entering the battery pack and the frame, and the normal use of a vehicle is effectively ensured.

Further, a hollowed-out window which is through up and down is arranged on the frame, and the battery pack is located below the hollowed-out window, so that the bottom of the frame can be closer to the battery pack when the height of the bottom of the battery pack is fixed to the ground, the gap between the frame and the battery pack can be guaranteed, and the bottom of the frame is lower when the height of the upper end of the vehicle body is consistent, so that the inside of the vehicle body has a larger space.

Drawings

Fig. 1 is a schematic structural view (a) of a first embodiment of the vehicle body structure of the present invention.

Fig. 2 is a schematic structural view (ii) of the first embodiment of the vehicle body structure of the present invention.

Fig. 3 is an enlarged view at a in fig. 1.

Fig. 4 is an enlarged view at B in fig. 1.

Fig. 5 is a schematic structural view (one) of a second embodiment of the vehicle body structure according to the present invention.

Fig. 6 is a schematic structural view (ii) of a second embodiment of the vehicle body structure according to the present invention.

Fig. 7 is an enlarged view at C in fig. 6.

The reference numerals are explained below: 100. a frame; 110. hollowing out the window; 120. an upper sealing rib; 121. a fitting section; 122. a fixed section; 130. a protruding portion; 131. a fastening section; 132. an extension section; 140. a reinforcing plate; 150. fixing a nut; 200. a battery pack; 210. a lower housing; 211. a tray section; 212. a connecting portion; 213. a lower sealing rib; 2131. a top abutting section; 2132. a support section; 214. fastening a nut; 215. a bushing; 216. fixing the bolt; 220. an upper housing; 221. an upper panel; 222. an edge plate; 223. fastening a bolt; 230. a seal ring; 240. and (5) sealing rings.

Detailed Description

Exemplary embodiments that embody features and advantages of the present invention will be described in detail in the following description. It is to be understood that the invention is capable of other and different embodiments and its several details are capable of modification without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature and not as restrictive.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

For convenience of description and understanding, the longitudinal direction of the vehicle is taken as the longitudinal direction, the width direction of the vehicle is taken as the transverse direction, and the vertical direction is taken as the up-down direction.

A vehicle includes a body structure, a travel system, and a power system. The driving system and the power system are fixed on the vehicle body structure, and the power system is used for providing power for the driving system so as to enable the driving system to work and drive the vehicle body structure to move.

Fig. 1 is a schematic structural view (a) of a first embodiment of the vehicle body structure of the present invention. Fig. 2 is a schematic structural view (ii) of the first embodiment of the vehicle body structure of the present invention. Fig. 3 is an enlarged view of a point a in fig. 1.

Referring to fig. 1 to 3, the present embodiment provides a body structure of an electric vehicle, which includes a frame 100 and a battery pack 200 fixed to a bottom of the frame 100. An electric motor is also provided at the vehicle frame 100, and the battery pack 200 supplies electric power to the electric motor to rotate the electric motor, thereby powering the vehicle.

In this embodiment, the frame 100 is provided with a hollow window 110 penetrating vertically. Due to the arrangement of the hollow window 110, materials are saved in manufacturing of the frame 100, and cost is reduced. The hollow-out window 110 is disposed above the battery pack 200, and the battery pack 200 covers a lower portion of the hollow-out window 110.

Fig. 4 is an enlarged view at B in fig. 1.

Referring to fig. 1 to 4, a protrusion 130 protruding downward is formed at the bottom of the frame 100, and the protrusion 130 is integrally formed with the frame 100. The protruding portions 130 are disposed on both lateral sides of the frame 100, are disposed on both lateral sides of the hollow window 110, and extend in the longitudinal direction.

In some embodiments, the protrusions 130 are disposed at both sides of the hollow window 110 at intervals along the longitudinal direction, and extend along the transverse direction.

The protruding portion 130 includes a fastening section 131 horizontally disposed, and an extending section 132 upwardly extending from both ends of the fastening section 131 to the frame 100; the fastening section 131 is disposed horizontally.

The opening of the hollow-out window 110 makes the structural strength and the bending resistance of the frame 100 lower. The arrangement of the protruding portions 130 enhances the structural strength of the frame 100, and the protruding portions 130 are arranged on two lateral sides of the hollow window 110 to enhance the structural strength and the bending resistance of the frame 100 corresponding to the hollow window 110, so as to ensure that the structural strength and the bending resistance of the frame 100 meet the requirements.

A reinforcing plate 140 is provided in the protrusion 130. The fastening section 131 is formed with a fastening hole (not shown) therein. The fixing holes are provided in plurality at intervals along the extension direction of the fastening section 131. In this embodiment, the fastening section 131 is longitudinally disposed along the protruding portion 130, and a plurality of fixing holes are longitudinally disposed on each protruding portion 130 at intervals.

The reinforcing plate 140 is disposed corresponding to the fixing holes, which penetrate the reinforcing plate 140. The provision of the reinforcing plate 140 enhances the structural strength of the protrusion 130. The fixing nut 150 is attached to the upper surface of the reinforcing plate 140 for fixing and connecting the battery pack 200.

Referring to fig. 1 to 3 again, the battery pack 200 is located below the hollow window 110; the battery pack 200 includes a lower case 210, an upper case 220 covering the lower case 210, and a battery; the upper casing 220 and the lower casing 210 enclose to form a sealed accommodating chamber for accommodating the battery; the lower case 210 goes beyond the upper case 220 in the circumferential direction; the lower case 210 is fixed to the vehicle frame 100 such that the battery pack 200 is mounted on the vehicle frame 100.

In this embodiment, the lower case 210 includes a tray portion 211, and a connection portion 212 protruding at the outer periphery of the tray portion 211. The tray part 211 is formed with a cavity having an open upper end for receiving the battery. The tray part 211 and the upper case 220 are coupled and sealed so that the battery pack 200 is sealed itself. The connection portion 212 is used to be fixedly connected to the vehicle frame 100 to mount the battery pack 200 on the vehicle frame 100.

The peripheral wall of the tray portion 211 includes an inner peripheral wall on the inside, an outer peripheral wall provided outside the inner peripheral wall, and a plurality of connecting walls connecting between the outer peripheral wall and the inner peripheral wall. The outer peripheral wall and the inner peripheral wall are both U-shaped structures with open upper ends. The connecting wall is connected between the outer circumferential wall and the inner circumferential wall to reduce the use of the material of the tray portion 211 and the weight of the tray and save the cost on the basis of ensuring the structural strength of the tray portion 211. Both sides of the uppermost connecting wall are connected to the outer circumferential wall and the inner circumferential wall, respectively, and the upper case 220 is closed over the uppermost connecting wall.

The tray portion 211 is provided with a fastening nut 214. Specifically, the fastening nut 214 is provided on the lower surface of the uppermost connecting wall and is welded to the corresponding connecting wall. The connecting wall at the uppermost end is provided with through holes which are in one-to-one correspondence with the fastening nuts 214. A plurality of fastening nuts 214 are provided at intervals along the edge direction of the upper end of the tray, and the fastening nuts 214 are used to be engaged with corresponding fastening members to fix the upper housing 220 to the tray portion 211.

The upper housing 220 has a plate-shaped structure, the edge of the upper housing 220 is hermetically connected to the upper end of the tray part 211, and the upper housing 220 covers the upper end opening of the tray part 211. Go up casing 220 and be close to the fretwork window 110 on the frame 100, fretwork window 110 set up can effectually avoid the upper end of going up casing 220 and frame 100 to take place to interfere.

In this embodiment, the upper housing 220 includes an upper panel 221, and an edge plate 222 disposed at an edge of the upper panel 221; the edge plate 222 extends in a horizontal and outward direction after extending downward from the edge of the upper panel 221; the edge plate 222 is fixed to the tray portion 211. The edge plate 222 is attached and fixed to the tray portion 211.

In some embodiments, the upper housing 220 has a plate-shaped structure, and the edge of the upper housing 220 is fixedly connected to the tray portion 211.

In this embodiment, a seal ring 240 is sandwiched between the upper surface of the tray portion 211 and the upper housing 220; the packing 240 is circumferentially provided and attached to the upper surface of the tray 211. The packing 240 is clamped between the upper surface of the tray part 211 and the lower surface of the edge plate 222 to seal the battery pack 200.

The sealing ring 240 is a flexible pad having elasticity to be elastically deformed so as to be sealed between the lower case 210 and the upper case 220. The sealing ring 240 is an annular structure and extends along the edge of the upper end of the tray part 211, and the sealing ring 240 is located on the upper end face of the tray part 211.

In the related art, when the battery pack 200 is mounted on the frame 100, a complete battery structure and a complete sealing structure are not formed, when the battery pack 200 is mounted on the frame 100, the battery pack 200 needs to be assembled into a semi-finished product without the upper shell 220, complete air tightness detection cannot be performed, after the battery is mounted on the frame, air tightness detection needs to be performed, the beat is long (about 3-5 min), a certain repair probability exists, a repair area needs to be arranged on a production line independently, and the existing whole production line is greatly modified.

In the present application, the battery pack 200 is sealed by hearing that the sealing ring 240 is provided between the upper case 220 and the lower case 210, and the sealed battery pack 200 is mounted on the vehicle frame 100. The battery package 200 has been sealed to can carry out the gas tightness when the battery package 200 equipment and detect, need not to carry out the battery package 200 gas tightness on the whole car is produced the line and detect, to producing the beat of line and having no influence to the whole car, be favorable to improving production efficiency, reduce and produce the line and reform transform the cost.

In this embodiment, a fastening bolt 223 is provided between the upper case 220 and the tray portion 211, and the fastening bolt 223 is screwed to the fastening nut 214 to fix the upper case 220 to the tray portion 211 by passing through the upper case 220 and the tray portion 211 in this order. The fastening bolt 223 moves from the top to the bottom, and is screwed with the fastening nut 214, and the packing 240 is compressed by rotating the fastening bolt 223.

The seal ring 240 is provided with a through hole corresponding to the fastening bolt 223, and the through hole corresponds to the through hole on the tray portion 211 so as to allow the fastening bolt 223 to pass through. The fastening bolt 223 penetrates through the sealing ring 240, so that the position of the sealing ring 240 can be effectively limited, the position of the sealing ring 240 can be effectively prevented from being deviated, and the sealing effect of the sealing ring 240 is guaranteed.

In this embodiment, the connecting portion 212 of the lower case 210 is connected to the protrusion 130 of the frame 100, and the upper end of the connecting portion 212 abuts against the protrusion 130. The fixing bolt 216 passes through the connection portion 212 and the protrusion 130 in order to fix the lower case 210 to the frame 100. The fixing bolt 216 is vertically inserted through the connection portion 212 and is threadedly coupled to the fixing nut 150 on the protrusion 130.

A bushing 215 is inserted into the connection portion 212, and the bushing 215 is vertically disposed to penetrate the upper and lower ends of the connection portion 212. The fixing bolt 216 is inserted into the bushing 215 and is screwed to the fixing nut 150.

The connection portion 212 of the battery pack 200 is fixed on the protruding portion 130 of the frame 100, and the battery pack 200 covers the hollow window 110 of the frame 100, and the bottom of the battery pack 200 forms a bottom plate structure of the frame 100.

The connection portion 212 is fixedly connected to the protruding portion 130, so that the structural strength of the connection portion 212 and the protruding portion 130 is enhanced, and the influence of the opening of the hollow window 110 on the structural strength of the vehicle frame 100 is further reduced.

After the battery pack 200 is assembled, the connecting portion 212 is fixedly connected to the protruding portion 130 through the fixing bolt 216 when the vehicle is assembled, so that the assembly of the battery pack 200 on the frame 100 is completed, and the installation is convenient.

Referring to fig. 1 to 3 again, a lower sealing rib 213 is fixedly connected to the outer side surface of the lower housing 210; the lower sealing rib 213 is circumferentially disposed on the outer circumference of the lower case 210. The lower sealing rib 213 is arranged around the outer periphery of the tray portion 211, the lower sealing rib 213 is of an annular structure, and the lower sealing rib 213 comprises a supporting section 2132 fixed on the outer periphery of the tray portion 211 and a propping section 2131 extending from the upper end of the supporting section 2132 back to the tray portion 211; the abutting section 2131 is horizontally arranged.

The lower end of the support section 2132 is fixed to the outer periphery of the tray portion 211, and the upper end of the support section 2132 extends in a direction from below to above toward a direction away from the tray portion 211, so that the lower seal rib 213 has elasticity.

Referring to fig. 1, 2 and 4, a sealing ring 230 is clamped between the battery pack 200 and the frame 100, and the sealing ring 230 is circumferentially disposed on the lower case 210 and surrounds the upper case 220. The lower sealing rib 213 is circumferentially arranged on the periphery of the lower shell 210, and the sealing ring 230 is circumferentially arranged and fixed on the upper end surface of the lower sealing rib 213; the sealing ring 230 is clamped between the bottom surface of the frame 100 and the upper end surface of the lower sealing rib 213 in a sealing manner, so that the sealing between the battery pack 200 and the frame 100 is ensured, water is effectively prevented from entering the frame 100 through the hollow window 110, and wading protection in the frame 100 is realized.

The lower sealing ribs 213 are fixedly connected to the battery pack 200, so that the battery pack 200 and the vehicle body can be directly sealed by adding the lower sealing ribs 213 on the basis of the existing mass production battery pack 200, and the change of the existing mass production product is small.

Based on the above description, the battery pack 200 itself is assembled and sealed before the battery pack 200 is mounted on the vehicle frame 100. After the battery is placed in the tray portion 211, the sealing ring 240 is fixedly placed on the upper end surface of the tray portion 211, and the through hole on the sealing ring 240 corresponds to the through hole on the tray portion 211, and the upper shell 220 is covered and attached downwards to the corresponding position on the sealing ring 240. The fastening bolt 223 passes through the upper end of the upper case 220 and the upper end of the tray portion 211 in sequence, and is screwed on the fastening nut 214, and the pressure of the fastening bolt 223 on the upper case 220 drives the lower case 210 to be pressed down on the sealing ring 240, so that the battery pack 200 is sealed by itself.

When the vehicle is assembled, the assembled battery pack 200 is mounted on the vehicle frame 100. The sealing ring 230 is placed on the upper end of the lower sealing rib 213 such that the connection portion 212 of the lower case 210 corresponds to the protrusion 130 of the vehicle frame 100, and the fixing bolt 216 is inserted through the bushing 215 from the bottom to the top and is bolted to the fixing nut 150 on the protrusion 130 to fix the battery pack 200 to the vehicle frame 100. When the connection part 212 is fixed to the protrusion part 130 by the fixing bolt 216, the upper end of the sealing ring 230 abuts the lower end surface of the upper sealing rib 120 or the bottom surface of the frame 100, and the upper sealing rib 120 (or the bottom surface of the frame 100) and the lower sealing rib 213 press the sealing ring 230 together, so that the sealing ring 230 is sealed between the battery pack 200 and the frame 100.

The utility model discloses in, the fretwork window 110 that link up from top to bottom has been seted up on the frame 100 to reduce the use of the material on the frame 100, reduced the cost of production. The lower case 210 and the upper case 220 of the battery pack 200 enclose to form a sealed receiving chamber for receiving the battery, so that the battery pack 200 is sealed by itself.

The outer side surface of the lower shell 210 is fixedly connected with a lower sealing rib 213; the lower sealing rib 213 is circumferentially arranged on the periphery of the lower shell 210, and the sealing ring 230 is circumferentially arranged and fixed on the upper end surface of the lower sealing rib 213; the sealing ring 230 is clamped between the bottom surface of the frame 100 and the upper end surface of the lower sealing rib 213 in a sealing manner, so that the sealing between the battery pack 200 and the frame 100 is ensured, water is effectively prevented from entering the frame 100 through the hollow window 110, and wading protection in the frame 100 is realized. Through the sealing of the battery pack 200 and the sealing between the battery pack 200 and the frame 100, the sealing of the battery pack 200 and the sealing between the battery pack 200 and the frame 100 are ensured, water is effectively prevented from entering the battery pack 200 and the frame 100, and the normal use of the vehicle is effectively ensured.

The frame 100 is provided with the hollow window 110 which is vertically communicated, and the battery pack 200 is located below the hollow window 110, so that when the bottom of the battery pack 200 is fixed to the ground, the bottom of the frame 100 can be closer to the battery pack 200, a gap between the frame 100 and the battery pack 200 can be ensured, and when the height of the upper end of the vehicle body is consistent, the bottom of the frame 100 is lower, so that the inside of the vehicle body has a larger space.

When the connecting portion 212 is fixed to the protruding portion 130, the sealing ring 230 on the lower housing 210 is driven to be attached to the upper sealing rib 120 on the frame 100, so that the sealing between the frame 100 and the battery pack 200 is completed, the sealing operation between the frame 100 and the battery pack 200 is simple and convenient, the production process is simplified, and the production efficiency is improved.

The battery pack 200 is installed and sealed on the frame 100, air tightness detection is not needed, the installation process is simple, the manufacturing, detection process and initial investment of the battery pack 200 of the vehicle are simplified, the production cost is reduced, the production beat of the whole vehicle is accelerated, and the production efficiency is improved.

The second embodiment:

fig. 5 is a schematic structural view (a) of a second embodiment of the vehicle body structure according to the present invention. Fig. 6 is a schematic structural view (ii) of a second embodiment of the vehicle body structure according to the present invention. Fig. 7 is an enlarged view at C in fig. 6.

Referring to fig. 5 to 7, the vehicle body structure in the present embodiment refers to the vehicle body structure in the first embodiment, and the present embodiment is different from the first embodiment in that:

the frame 100 is provided with an upper sealing rib 120 protruding downward, and the upper sealing rib 120 is disposed around the hollow window 110. The upper sealing rib 120 has an annular structure, and the upper sealing rib 120 is attached to a lower surface of the frame 100. The upper sealing rib 120 protrudes downward from the vehicle frame 100, and the upper sealing rib 120 has an annular structure such that the connection of the upper sealing rib 120 and the vehicle frame 100 forms a sealing structure.

The upper sealing rib 120 comprises a horizontally arranged attaching section 121 and fixing sections 122 arranged at two ends of the attaching section 121; the fixing section 122 extends upwards from one end of the attaching section 121, then bends and extends horizontally; the fixed section 122 is fixed to the frame 100. The fixed segment 122 is welded to the frame 100 or riveted to the frame 100.

In this embodiment, the upper surface of the fixing section 122 is fitted and welded to the frame 100, so that the joint between the fixing section 122 and the lower surface of the frame 100 forms a seal. In some embodiments, the fixing portion 122 is coupled to the lower surface of the frame 100 by a bolt, etc., and is sealed with the frame 100.

Go up sealed muscle 120 and encircle fretwork window 110 setting, go up sealed muscle 120 and compress tightly down on sealing ring 230, so that sealing ring 230 centre gripping and seal between last sealed muscle 120 and lower sealed muscle 213, and make lower casing 210 cover in the below of fretwork window 110, with sealed frame 100 and lower casing 210, thereby when guaranteeing to set up fretwork window 110 on frame 100, guarantee the sealing between battery package 200 and frame 100, in the effectual water of preventing gets into frame 100 through fretwork window 110, wading protection in frame 100 has been realized.

The lower end faces of the upper sealing ribs 120 are on the same plane and abut against the sealing ring 230. The lower end faces of the upper sealing ribs 120 are on the same plane so as to be in sealing abutment with the sealing ring 230. The upper end of the upper sealing rib 120 is fixed to the frame 100 and is connected to the frame 100 in a sealing manner. When the bottom surface of the frame 100 is uneven, the lower end of the upper sealing rib 120 is horizontal, the upper end is fixed on the frame 100, and the upper end of the upper sealing rib 120 can be set to different shapes to be connected and sealed with the bottom surface of the frame 100 so as to adapt to connection and installation on the bottom surface of the frame 100. In addition, the upper end of the upper seal bead 120 can be formed in different shapes for different vehicle frames 100, so that the upper seal bead 120 can be sealed with respect to the vehicle frame 100 and the seal ring 230.

In this embodiment, the fitting section 121 at the lower end of the upper sealing rib 120 fits and abuts against the sealing ring 230. The lower end surface of the attachment section 121 is horizontally disposed. The securing section 122 of the upper seal bead 120 can be provided in different shapes for mating with the vehicle frame 100.

The upper sealing rib 120 is made of a metal material, and the upper sealing rib 120 is fixed in a direction inclined from bottom to top, so that the upper sealing rib 120 has certain elasticity, and can be elastically pressed on the sealing ring 230 to maintain the sealing between the frame 100 and the battery pack 200 when the frame 100 and the battery pack 200 vibrate relatively.

In this embodiment, the sealing ring 230 is a flexible pad with elasticity, and after the sealing ring 230 is clamped between the lower housing 210 and the upper sealing rib 120, the compression rate of the sealing ring 230 can be selected between 30% and 80%, and preferably 50%, to ensure the sealing of the sealing ring 230.

It should be noted that the upper sealing rib 120 protruding downward on the frame 100 is provided to be able to accommodate the lower sealing ribs 213 of different heights. When different battery packs 200 are mounted on the vehicle frame 100, the upper sealing rib 120 is made to protrude downward by different lengths so as to be in sealing engagement with the sealing ring 230.

The utility model discloses in, the fretwork window 110 that link up from top to bottom has been seted up on the frame 100 to reduce the use of the material on the frame 100, reduced the cost of production. The lower case 210 and the upper case 220 of the battery pack 200 enclose to form a sealed receiving chamber for receiving the battery, so that the battery pack 200 is sealed by itself.

Be provided with upper seal muscle 120 on the frame 100, upper seal muscle 120 encircles fretwork window 110 and sets up, be provided with sealing ring 230 on the casing 210 down, upper seal muscle 120 compresses tightly downwards on sealing ring 230, so that sealing ring 230 centre gripping and seal at upper seal muscle 120 and between casing 210 down, and make casing 210 cover in the below of fretwork window 110 down, in order to sealed frame 100 and casing 210 down, thereby when guaranteeing to set up fretwork window 110 on frame 100, guarantee the sealing between battery package 200 and frame 100, effectually prevent that water from getting into in frame 100 through fretwork window 110, the protection of wading in frame 100 has been realized. Through the sealing of the battery pack 200 and the sealing between the battery pack 200 and the frame 100, the sealing between the battery pack 200 and the frame 100 is ensured, water is effectively prevented from entering the battery pack 200 and the frame 100, and the normal use of the vehicle is effectively ensured.

The upper sealing rib 120 protrudes downward so that the upper sealing rib 120 can be pressed downward against the sealing ring 230 when the battery pack 200 is mounted on the vehicle frame 100, thereby ensuring sealing between the vehicle frame 100 and the sealing ring 230 to ensure sealing between the battery pack 200 and the vehicle frame 100.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terms used are words of description and illustration, rather than words of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims (10)

1. A vehicle body structure characterized by comprising:

the frame is provided with an up-down through hollow window;

the battery pack is positioned below the hollow-out window; the battery pack comprises a lower shell and an upper shell covering the lower shell; the upper shell and the lower shell are enclosed to form a sealed accommodating chamber for accommodating a battery; the lower shell circumferentially exceeds the upper shell; the lower shell is fixed on the frame and covers the lower part of the hollow window; a lower sealing rib is fixedly connected to the outer side surface of the lower shell; the lower sealing rib is circumferentially arranged on the periphery of the lower shell;

the sealing ring is arranged around the periphery and is fixed on the upper end surface of the lower sealing rib; the sealing ring is clamped between the bottom surface of the frame and the upper end surface of the lower sealing rib in a sealing manner.

2. The vehicle body structure according to claim 1, wherein the lower case includes a tray portion, and a connecting portion protruding at an outer periphery of the tray portion; the tray part is provided with a cavity with an opening at the upper end; the upper shell is fixedly and hermetically connected to the upper end of the tray part; the connecting part is fixedly connected with the frame; the lower sealing rib is fixedly connected to the periphery of the tray portion and located above the connecting portion.

3. The vehicle body structure according to claim 2, wherein the lower seal bead includes a support section fixed to an outer periphery of the tray portion, and an abutting section extending from an upper end of the support section away from the tray portion; the top abutting section is horizontally arranged, and the sealing ring is fixed on the upper surface of the top abutting section.

4. The vehicle body structure according to claim 3, wherein a lower end of the support section is fixed to an outer periphery of the tray section, and an upper end of the support section extends in a direction from below to above toward a direction away from the tray section, so that the lower seal rib has elasticity.

5. The vehicle body structure of claim 2, wherein the rim of the upper shell is sealingly attached to the upper end of the tray portion, and the upper shell covers the upper end opening of the tray portion.

6. The vehicle body structure according to claim 5, wherein a fastening nut is provided on the tray portion, a fastening bolt is provided between the upper case and the tray portion, and the fastening bolt passes through the upper case and the tray portion in this order and is screwed to the fastening nut, so that the upper case is fixed to the tray portion.

7. The vehicle body structure according to claim 2, characterized in that the upper case includes an upper panel, and an edge panel provided at an edge of the upper panel; the edge plate extends downwards from the edge of the upper panel and then extends along the horizontal and outward direction; the edge plate is fixed on the tray part.

8. The vehicle body structure according to claim 2, characterized in that a seal ring is sandwiched between the upper surface of the tray portion and the upper case; the sealing ring is arranged around the periphery and is attached to the upper surface of the tray part.

9. The vehicle body structure according to claim 2, wherein a bottom portion of the frame is formed with a downwardly projecting projection; the protruding part comprises a fastening section arranged horizontally and extending sections which extend upwards to the frame from two ends of the fastening section respectively; the lower surface of the extension section is attached to the connecting part, and the extension section is fixedly connected to the connecting part.

10. The vehicle body structure of claim 9, wherein a reinforcing plate is provided on the fastening section, the reinforcing plate being fixed to and attached to an upper surface of the fastening section; a fixing nut is attached to the upper surface of the reinforcing plate, and a fixing bolt penetrates through the connecting part; the fixing bolt vertically penetrates through the connecting part and is in threaded connection with the fixing nut.

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