CN220923791U - Vehicle body structure - Google Patents

Abstract

The utility model provides a vehicle body structure, which comprises a vehicle frame, a battery pack structure and a first sealing ring; the frame comprises a hollowed-out part, a first sealing part and a first fixing part. The hollowed-out parts on the frame reduce the use of materials on the frame and reduce the production cost. The second shell of the battery pack structure and the second shell enclose to form a containing chamber for containing the battery. The second shell is fixedly connected with the first fixing part, so that the battery pack structure is fixed on the frame. Be provided with first sealing portion on the frame, first sealing portion encircles and sets up in fretwork portion periphery, and sealed being provided with first sealing ring between first sealing portion and the first casing to guarantee when setting up the fretwork portion on the frame, guarantee the seal between battery package structure and the frame, effectually prevent that water from getting into the frame through the fretwork portion in, realized the wading protection in the frame, effectually avoid in water gets into battery package structure and the frame, the effectual normal use of guaranteeing the vehicle.

Description

Vehicle body structure

Technical Field

The utility model relates to the field of automobile parts, in particular to a vehicle body structure.

Background

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

In the current market, the battery pack structure of electric automobile all is located whole car frame bottom, but electric automobile is in the in-process of using, because electric automobile can involve operating mode such as wading, carwash, leads to rivers to get into in the battery pack structure or get into in the frame easily, influences the normal use of car.

Disclosure of utility model

The utility model aims to provide a vehicle body structure so as to ensure the sealing between a battery pack structure and a vehicle frame, effectively prevent water from entering the battery pack structure and the vehicle frame and effectively ensure the normal use of the vehicle.

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

According to one aspect of the present utility model, there is provided a vehicle body structure including a vehicle frame, a battery pack structure, and a first seal ring; the frame comprises a hollowed-out part, a first sealing part and a first fixing part, wherein the first sealing part is arranged around the periphery of the hollowed-out part and is positioned between the hollowed-out part and the first fixing part; the battery pack structure comprises a first shell and a second shell, wherein the first shell and the second shell are enclosed to form an accommodating cavity for accommodating a battery, and the second shell is fixedly connected with the first fixing part; a first seal ring is sealingly disposed between the first seal portion and the first housing.

In some embodiments of the application, the body structure further comprises a second seal ring sealingly disposed between the first housing and the second housing.

In some embodiments of the application, the second sealing ring is located at a side of the first sealing ring away from the hollowed-out portion.

In some embodiments of the application, the first housing includes a first region and a second region, the first seal ring is disposed between the first seal and the first region, and the second seal ring is disposed between the second region and the second housing.

In some embodiments of the application, the first housing further comprises a transition region connected between the first region and the second region.

In some embodiments of the present application, the first region and the second region are located in different planes, one end of the transition region is arcuately connected to the first region, and the other end of the transition region is arcuately connected to the second region.

In some embodiments of the application, the vehicle body structure further comprises a first fastener disposed such that the second seal ring is sealingly secured between the first and second housings.

In some embodiments of the application, the vehicle body structure further comprises a second fastener arranged to secure the second shell to the vehicle frame.

In some embodiments of the application, the second fastener is located on a side of the first fastener away from the hollowed-out portion.

In some embodiments of the application, the second housing includes a second securing portion that abuts against the second seal ring and clamps the second seal ring together with the first housing, and a third securing portion that cooperates with the first securing portion and is secured by the second fastener.

In some embodiments of the application, the first fixing portion, the second fixing portion, and the third fixing portion are located in three different planes.

In some embodiments of the present application, the first sealing portion is a protrusion formed by protruding the frame toward the first housing.

According to the technical scheme, the utility model has at least the following advantages and positive effects:

In the utility model, the frame comprises a hollowed-out part, a first sealing part and a first fixing part. The hollowed-out parts on the frame reduce the use of materials on the frame and reduce the production cost. The second shell of the battery pack structure and the second shell enclose to form a containing chamber for containing the battery. The second shell is fixedly connected with the first fixing part, so that the battery pack structure is fixed on the frame. Be provided with first sealing portion on the frame, first sealing portion encircles and sets up in fretwork portion periphery, and sealed being provided with first sealing ring between first sealing portion and the first casing to guarantee when setting up the fretwork portion on the frame, guarantee the seal between battery package structure and the frame, effectually prevent that water from getting into the frame through the fretwork portion in, realized the wading protection in the frame, effectually avoid in water gets into battery package structure and the frame, the effectual normal use of guaranteeing the vehicle.

Drawings

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

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

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

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

The reference numerals are explained as follows: 100. a frame; 110. a hollowed-out part; 120. a first sealing part; 121. a bonding section; 122. a fixed section; 130. a first fixing portion; 131. a fastening section; 132. an extension section; 140. a reinforcing plate; 150. a fixing nut; 200. a battery pack structure; 210. a second housing; 211. a second fixing portion; 212. a third fixing portion; 214. a fastening nut; 215. a bushing; 216. a second fastener; 220. a first housing; 221. a first region; 222. a second region; 223. a first fastener; 230. a first seal ring; 240. and a second seal ring.

Detailed Description

Exemplary embodiments that embody features and advantages of the present utility model will be described in detail in the following description. It will be understood that the utility model is capable of various modifications in various embodiments, all without departing from the scope of the utility model, and that the description and illustrations herein are intended to be by way of illustration only and not to be construed as limiting the utility model.

In the description of the present application, it should 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, 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, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined 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 both fixed on the vehicle body structure, and the power system is used for providing power for the driving system so that the driving system works and the vehicle body structure is driven to move.

Fig. 1 is a schematic structural view (one) of a first embodiment of a vehicle body structure of the present utility model. Fig. 2 is a schematic structural view (ii) of a first embodiment of the vehicle body structure of the present utility model. Fig. 3 is an enlarged view at 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 structure 200 fixed to the bottom of the frame 100. An electric motor is also provided in the frame 100 and the battery pack structure 200 provides electrical power to the electric motor to cause the electric motor to rotate, thereby powering the vehicle.

The frame 100 includes a hollow portion 110, a first sealing portion 120 and a first fixing portion 130, where the first sealing portion 130 is disposed around the periphery of the hollow portion 110 and between the hollow portion 110 and the first fixing portion 130.

In this embodiment, the hollow portion 110 on the frame 100 penetrates up and down. The provision of the hollowed-out portion 110 saves material for manufacturing the frame 100, thereby reducing the cost. The hollowed-out portion 110 is disposed corresponding to the upper portion of the battery pack structure 200, and the battery pack structure 200 covers the lower portion of the hollowed-out portion 110. In some implementations, the hollowed-out portion 110 extends horizontally through the frame 100.

The first sealing portion 120 is formed by protruding downward from the frame 100, and the first sealing portion 120 is a protrusion formed by protruding the frame 100 in the direction of the first housing 220. The first sealing portion 120 is disposed around the outer periphery of the hollow portion 110. The first sealing portion 120 has an annular structure, and the first sealing portion 120 is connected to the lower surface of the frame 100. The first sealing portion 120 protrudes downward from the frame 100, and the first sealing portion 120 has an annular structure, so that the connection between the first sealing portion 120 and the frame 100 forms a sealing structure.

The first sealing part 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, bends and extends horizontally; the fixed segment 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 attached to and welded to the frame 100, so that the connection between the fixing section 122 and the lower surface of the frame 100 forms a seal. In some embodiments, the fixed segment 122 is attached to the lower surface of the frame 100 by a bolt or the like connection and is sealed with the frame 100.

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

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

In some embodiments, the first fixing portions 130 are disposed at two sides of the hollowed portion 110 along the longitudinal direction at intervals, and extend along the lateral direction.

In other embodiments, the first fixing portion 130 is disposed circumferentially and encloses the hollow portion 110.

The first fixing part 130 includes a fastening section 131 horizontally disposed, and an extension section 132 extending upward from both ends of the fastening section 131 to the frame 100; the fastening section 131 is arranged horizontally.

The hollow portion 110 is formed, so that the structural strength and bending resistance of the frame 100 become low. The first fixing portion 130 enhances the structural strength of the frame 100, and the first fixing portion 130 is disposed on two lateral sides of the hollowed portion 110, so as to enhance the structural strength and bending resistance of the frame 100 corresponding to the hollowed portion 110, so as to ensure that the structural strength and bending resistance of the frame 100 meet the requirements.

The first fixing portion 130 is provided therein with a reinforcing plate 140. The fastening section 131 is provided with a fixing hole (not shown). 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 disposed along with the first fixing portions 130 in the longitudinal direction, and a plurality of fixing holes are disposed on each of the first fixing portions 130 at intervals in the longitudinal direction.

The reinforcing plate 140 is disposed corresponding to a fixing hole penetrating the reinforcing plate 140. The provision of the reinforcing plate 140 enhances the structural strength of the first fixing portion 130. The fixing nut 150 is attached to the upper surface of the reinforcing plate 140 for coupling and fixing the battery pack structure 200.

Referring to fig. 1 to 3 again, the battery pack structure 200 is located below the hollowed-out portion 110; the battery pack structure 200 includes a first case 220 and a second case 210. The second housing 210 covers over the first housing 220.

A second case 210, a first case 220 covered on the second case 210, and a battery; the first case 220 and the second case 210 enclose an accommodating chamber for accommodating a battery; the second housing 210 exceeds the first housing 220 in the circumferential direction; the second housing 210 is fixed to the vehicle frame 100 such that the battery pack structure 200 is mounted to the vehicle frame 100.

In this embodiment, the second housing 210 includes a second fixing portion 211 and a third fixing portion 212. The third fixing portion 212 protrudes from the outer circumference of the second fixing portion 211. The second fixing portion 211 is formed with a chamber having an open upper end for accommodating the battery. The first housing 220 is fixed and hermetically coupled to an upper end of the second fixing portion 211. The second fixing part 211 is coupled to and sealed with the first case 220 such that the battery pack structure 200 is sealed with itself. The third fixing portion 212 is fixedly coupled to the frame 100 to mount the battery pack structure 200 to the frame 100.

The peripheral wall of the second fixing portion 211 includes an inner peripheral wall on the inner side, an outer peripheral wall provided on the outer side of the inner peripheral wall, and a plurality of connection walls connected 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 upper ends open. The connecting wall is connected between the outer peripheral wall and the inner peripheral wall, so that the use of tray materials and the weight of the tray are reduced and the cost is saved on the basis of ensuring the structural strength of the tray. The two sides of the uppermost connecting wall are respectively connected to the outer peripheral wall and the inner peripheral wall, and the first housing 220 covers the uppermost connecting wall.

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

The first housing 220 has a plate-shaped structure, an edge of the first housing 220 is hermetically connected to an upper end of the second fixing portion 211, and the first housing 220 covers an upper end opening of the second fixing portion 211. The first housing 220 is close to the hollow portion 110 on the frame 100, and the hollow portion 110 can effectively avoid interference between the upper end of the first housing 220 and the frame 100.

The first fixing portion 130, the second fixing portion 211, and the third fixing portion 212 are located in three different planes so that the connection and the installation between the battery pack structure 200 and the vehicle frame 100 do not interfere with each other.

The first case 220 includes a first region 221 and a second region 222, the second region 222 is disposed at an edge of the first region 221, and a first seal ring 230 is disposed between the first seal 120 and the first region 221 in a sealing manner. In this embodiment, the first housing 220 further includes a transition region connected between the first region 221 and the second region 222. The first area 221 and the second area 222 are located on different planes, one end of the transition area is connected with the first area 221 in an arc shape, and the other end of the transition area is connected with the second area 222 in an arc shape.

In this embodiment, the second region 222 extends in a horizontal and outward direction after extending downward from the edge of the first region 221, so that a transition region is formed between the first region 221 and the second region 222, and the first region 221 and the second region 222 are located in different planes.

The second region 222 is fixed to the second fixing portion 211. The second region 222 is attached to and fixed to the second fixing portion 211.

In some embodiments, the first housing 220 has a flat plate structure, and an edge of the first housing 220 is fixedly connected to the second fixing portion 211.

In the present embodiment, the second seal ring 240 is sandwiched between the upper surface of the second fixing portion 211 and the first housing 220, and the second seal ring 240 is disposed between the second region 222 and the second housing 210; the second seal ring 240 is circumferentially disposed and attached to the upper surface of the second fixing portion 211. The second sealing ring 240 is sandwiched between the upper surface of the second fixing part 211 and the lower surface of the second region 222 to seal the battery pack structure 200. The second sealing ring 240 is located at a side of the first sealing ring 230 away from the hollowed-out portion 110, so that the first sealing ring 230 and the second sealing ring 240 are arranged in a dislocation manner.

The second seal ring 240 is a flexible pad having elasticity so as to be elastically deformable, thereby being capable of sealing between the second housing 210 and the first housing 220. The second seal ring 240 has an annular structure extending along an upper end edge of the second fixing portion 211, and the second seal ring 240 is located on an upper end surface of the second fixing portion 211.

In this embodiment, the second sealing ring 240 is a flexible pad having elasticity, and after the second sealing ring 240 is clamped between the first housing 220 and the second housing 210, the compression rate may be 30% to 80%, preferably, the compression rate of the second sealing ring 240 is 50%, so as to ensure the sealing of the second sealing ring 240.

In the related art, when the battery pack structure 200 is mounted on the vehicle frame 100, a complete battery structure and a sealing structure are not formed, when the battery pack structure 200 is mounted on the vehicle frame 100, the battery pack structure 200 needs to be assembled into a semi-finished product without the first shell 220, complete air tightness detection cannot be performed, after the battery is mounted on the vehicle body, 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 separately arranged on a production line, and the existing whole vehicle production line is greatly changed.

In the present application, the battery pack structure 200 is mounted on the vehicle frame 100 by providing the second sealing ring 240 between the first case 220 and the second case 210 so that the battery pack structure 200 is sealed. The battery pack structure 200 is sealed, and can detect the air tightness when the battery pack structure 200 is assembled, so that the air tightness of the battery pack structure 200 is not required to be detected on the whole vehicle production line, the beat of the whole vehicle production line is not influenced, the production efficiency is improved, and the improvement cost of the production line is reduced.

In the present embodiment, a first fastener 223 is provided between the first housing 220 and the second fixing portion 211, and the first fastener 223 is provided such that the second seal ring 240 is sealingly fixed between the first housing 220 and the second housing 210. The first fastener 223 sequentially passes through the first housing 220 and the second fixing portion 211, and is screwed on the fastening nut 214 to fix the first housing 220 to the second fixing portion 211. The first fastener 223 moves from top to bottom and is threadedly coupled to the fastening nut 214, compressing the second seal ring 240 by rotating the first fastener 223.

The first area 221 and the second area 222 are located on different planes, so that the first sealing ring 230 and the first fastening piece 223 are conveniently arranged on the first shell 220, and the arrangement of the first fastening piece 223 and the first sealing ring 230 is effectively ensured not to interfere with each other.

A through hole corresponding to the first fastening member 223 is formed in the second sealing ring 240, and the through hole corresponds to the through hole in the second fixing portion 211, so that the first fastening member 223 passes through. The first fastener 223 passes through the second sealing ring 240 to effectively define the position of the second sealing ring 240, and effectively avoid the position of the second sealing ring 240 from being deviated, thereby ensuring the sealing effect of the second sealing ring 240.

Referring again to fig. 1, 2 and 4, the third fixing portion 212 of the second housing 210 is connected to the first fixing portion 130 of the frame 100, and an upper end of the third fixing portion 212 abuts against the first fixing portion 130. The vehicle body structure further includes a second fastener 216, the second fastener 216 being disposed such that the second housing 210 is fixed to the vehicle frame 100, the second fastener 216 passing through the third fixing portion 212 and the first fixing portion 130 in order to fix the second housing 210 to the vehicle frame 100. The second fastening member 216 vertically penetrates through the third fixing portion 212 and is screwed to the fixing nut 150 on the first fixing portion 130. The second fastening member 216 is located on a side of the first fastening member 223 away from the hollowed-out portion 110.

The third fixing portion 212 is internally provided with a bushing 215 in a penetrating manner, and the bushing 215 is vertically arranged and penetrates through the upper end and the lower end of the third fixing portion 212. A second fastener 216 is threaded into the bushing 215 and is threadably coupled to the retaining nut 150.

The third fixing portion 212 of the battery pack structure 200 is fixed on the first fixing portion 130 of the frame 100, and the battery pack structure 200 covers the hollowed-out portion 110 of the frame 100, and the bottom of the battery pack structure 200 forms a bottom plate structure of the frame 100.

The third fixing portion 212 is fixedly connected with the first fixing portion 130, so that the structural strength of the connection portion between the third fixing portion 212 and the first fixing portion 130 is enhanced, and the influence of the opening of the hollowed-out portion 110 on the structural strength of the frame 100 is further reduced.

After the battery pack structure 200 is integrally assembled, when the whole vehicle is assembled, the third fixing part 212 is fixedly connected to the first fixing part 130 through the second fastening part 216, so that the assembly of the battery pack structure 200 on the frame 100 is completed, and the installation is convenient.

Referring again to fig. 1 to 3, a first sealing ring 230 is sandwiched between the battery pack structure 200 and the vehicle frame 100, and the first sealing ring 230 is circumferentially disposed on the first housing 220 and located on the upper surface of the first housing 220. The first sealing part 120 is pressed down on the first sealing ring 230 such that the first sealing ring 230 clamps and seals between the first sealing part 120 and the first case 220 to seal the connection between the battery pack structure 200 and the vehicle frame 100.

In this embodiment, the first seal ring 230 is adhered to the upper surface of the first region 221 of the first housing 220. The upper surface of the first region 221 is in the same plane as the position where the first seal ring 230 is attached. In some embodiments, the upper surfaces of the first regions 221 are all on the same horizontal plane.

The first seal ring 230 is disposed proximate to an edge of the first region 221 such that the first seal ring 230 is adjacent to a junction of the first region 221 and the second region 222. The junction of the first region 221 and the second region 222 is bent so that the structural strength at the junction is higher and the deformation is smaller. When the first seal ring 230 is attached to the edge of the first region 221, the sealing of the first seal ring 230 is more reliable and stable.

The first sealing part 120 surrounds the hollowed-out part 110, the first sealing part 120 is arranged on the first shell 220, the first sealing part 120 is pressed down on the first sealing ring 230, so that the first sealing ring 230 is clamped and sealed between the first sealing part 120 and the first shell 220, and the first shell 220 covers the lower part of the hollowed-out part 110 to seal the frame 100 and the first shell 220, thereby ensuring the sealing between the battery pack structure 200 and the frame 100 when the hollowed-out part 110 is arranged on the frame 100, effectively preventing water from entering the frame 100 through the hollowed-out part 110, and realizing wading protection in the frame 100.

In some embodiments, the first sealing ring 230 is adhered to the lower surface of the first sealing portion 120, when the battery pack structure 200 is mounted on the vehicle frame 100 from bottom to top, the first sealing ring 230 is adhered to the upper surface of the first housing 220, and alignment of the first sealing ring 230 on the first housing 220 is not required, so as to improve the mounting efficiency of the vehicle body structure.

In this embodiment, the first seal ring 230 is attached to the upper surface of the first housing 220. The upper surface of the first housing 220 is horizontally disposed for supporting the first sealing ring 230.

The lower end surface of the first sealing portion 120 is on the same plane and abuts against the first sealing ring 230. The lower end surface of the first seal portion 120 is on the same plane so as to be in sealing abutment with the first seal ring 230. The upper end of the first sealing portion 120 is fixed to the vehicle frame 100 and is hermetically connected to the vehicle frame 100. When the bottom surface of the frame 100 is uneven, the lower end of the first sealing part 120 is horizontal, and the upper end is fixed on the frame 100, and the upper end of the first sealing part 120 can be provided in different shapes for connecting and sealing with the bottom surface of the frame 100 to adapt to connection and installation on the bottom surface of the frame 100. Further, the upper ends of the first seal portions 120 can be formed in different shapes for different frames 100, so that the sealing of the first seal portions 120 with respect to the frame 100 and the first seal ring 230 can be ensured.

The first sealing part 120 is fixed on the bottom surface of the frame 100, and the first sealing part 120 can be arranged to be different in height in the vertical direction, or the first sealing ring 230 can be arranged to be different in thickness in the vertical direction, so as to adapt to the sealing between the battery pack structure 200 and the frame 100 on different frames 100.

In this embodiment, the attaching segment 121 at the lower end of the first sealing portion 120 is attached to and abuts against the first sealing ring 230. The lower end surface of the attaching section 121 is horizontally arranged. The fixed section 122 of the first seal 120 can be configured in different shapes for mating with the frame 100.

The first sealing part 120 is made of a metal material, and the fixing of the first sealing part 120 is inclined in the downward-upward direction, so that the first sealing part 120 has a certain elasticity, so that the first sealing part can be elastically pressed on the first sealing ring 230, and the sealing between the frame 100 and the battery pack structure 200 is maintained when the frame 100 and the battery pack structure 200 vibrate relatively.

In this embodiment, the first sealing ring 230 is a flexible pad with elasticity, and after the first sealing ring 230 is clamped between the first housing 220 and the first sealing portion 120, the compression rate may be 30% to 80%, preferably, the compression rate of the first sealing ring 230 is 50%, so as to ensure the sealing of the first sealing ring 230.

It should be noted that, the first sealing portion 120 protruding downward on the frame 100 is configured to accommodate the installation of the battery pack structure 200 with different heights. When different battery pack structures 200 are mounted on the vehicle frame 100, the first sealing portion 120 is caused to protrude downward by different lengths to be in sealing engagement with the first sealing ring 230.

Based on the above description, the battery pack structure 200 is assembled and sealed with itself before being mounted on the vehicle frame 100. After the battery is placed in the second fixing portion 211, the second sealing ring 240 is fixedly placed on the upper end surface of the second fixing portion 211, and the through holes on the second sealing ring 240 correspond to the through holes on the second fixing portion 211. The first fastening member 223 sequentially passes through the upper ends of the first housing 220 and the second fixing portion 211, and is screwed on the fastening nut 214, and the pressure of the first fastening member 223 to the first housing 220 drives the second housing 210 to press down on the second sealing ring 240, so that the battery pack structure 200 seals itself.

When the whole vehicle is assembled, the assembled battery pack structure 200 is mounted on the frame 100. The first sealing ring 230 is adhered to the bottom surface of the first sealing part 120 or the upper surface of the first housing 220. The third fixing portion 212 of the second housing 210 corresponds to the first fixing portion 130 of the frame 100, and the second fastener 216 penetrates the bushing 215 from the bottom up and is bolted to the fixing nut 150 on the first fixing portion 130 to fix the battery pack structure 200 to the frame 100. When the third fixing portion 212 is fixed to the first fixing portion 130 by the second fastening member 216, the first sealing portion 120 presses the first sealing ring 230 downward, so that the first sealing ring 230 seals between the battery pack structure 200 and the vehicle frame 100.

In the present utility model, the frame 100 includes a hollow portion 110, a first sealing portion 120 and a first fixing portion 130. The hollow part 110 on the frame 100 reduces the use of materials on the frame 100 and reduces the production cost. The second case 210 of the battery pack structure 200 and the second case 210 enclose an accommodating chamber for accommodating a battery. The second housing 210 is fixedly coupled to the first fixing portion 130 such that the battery pack structure 200 is fixed to the vehicle frame 100. Be provided with first sealing portion 120 on frame 100, first sealing portion 120 encircles and sets up in fretwork portion 110 periphery, sealing between first sealing portion 120 and the first casing 220 is provided with first sealing ring 230, thereby guarantee when setting up fretwork portion 110 on frame 100, guarantee the seal between battery package structure 200 and the frame 100, effectually prevent that water from getting into in the frame 100 through fretwork portion 110, realized the wading protection in the frame 100, effectually avoid water to get into in battery package structure 200 and the frame 100, the normal use of effectual assurance vehicle.

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

Be provided with fretwork portion 110 that link up from top to bottom on frame 100, and battery package structure 200 is located the below of fretwork portion 110 to can be in battery package structure 200 bottom highly timing apart from ground, the bottom of frame 100 can be more be close to battery package structure 200, and can guarantee the clearance between frame 100 and the battery package structure 200, when the high coincidence of automobile body upper end, the bottom of frame 100 is lower, thereby makes the automobile body inside have bigger space.

The battery pack structure 200 is installed and sealed on the frame 100, air tightness detection is not needed, the installation procedure is simple, the manufacturing, detection procedure and initial investment of the battery pack structure 200 part 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.

While the utility model has been described with reference to several exemplary embodiments, it is to be understood that the terminology used is intended to be in the nature of words of description and of limitation. As the present utility model 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 (12)

1. A vehicle body structure, characterized by comprising:

The vehicle frame comprises a hollowed-out part, a first sealing part and a first fixing part, wherein the first sealing part is arranged around the periphery of the hollowed-out part and is positioned between the hollowed-out part and the first fixing part;

The battery pack structure comprises a first shell and a second shell, wherein the first shell and the second shell are enclosed to form a containing cavity for containing a battery, and the second shell is fixedly connected with the first fixing part;

And a first seal ring provided between the first seal portion and the first housing in a sealing manner.

2. The vehicle body structure of claim 1, further comprising a second seal ring sealingly disposed between the first housing and the second housing.

3. The vehicle body structure according to claim 2, wherein the second seal ring is located on a side of the first seal ring away from the hollowed-out portion.

4. A vehicle body structure according to claim 2 or 3, wherein the first housing includes a first region and a second region, the first seal ring being disposed between the first seal portion and the first region, the second seal ring being disposed between the second region and the second housing.

5. The vehicle body structure of claim 4, wherein the first shell further comprises a transition region connected between the first region and the second region.

6. The vehicle body structure of claim 5, wherein the first region and the second region are located in different planes, one end of the transition region being arcuately connected to the first region, the other end of the transition region being arcuately connected to the second region.

7. A vehicle body structure according to claim 2 or 3, further comprising a first fastener arranged such that the second seal ring is sealingly secured between the first and second housings.

8. The vehicle body structure of claim 7, further comprising a second fastener disposed such that the second shell is secured to the frame.

9. The vehicle body structure of claim 8, wherein the second fastener is located on a side of the first fastener remote from the hollowed-out portion.

10. The vehicle body structure according to claim 8, wherein the second housing includes a second fixing portion that abuts against the second seal ring and clamps the second seal ring together with the first housing, and a third fixing portion that cooperates with the first fixing portion and is fixed by the second fastener.

11. The vehicle body structure according to claim 10, wherein the first fixing portion, the second fixing portion, and the third fixing portion are located in three different planes.

12. The vehicle body structure according to claim 1 or 2, wherein the first seal portion is a projection formed by projecting the vehicle frame in the first housing direction.