Vehicle body structure and vehicle

Abstract

The utility model discloses a vehicle body structure and a vehicle, and relates to but not limited to the technical field of battery sealing. The vehicle body structure comprises a vehicle body floor, a power battery, a connecting assembly and a sealing assembly. The connecting assembly comprises a connecting piece and a matching piece, the connecting piece is arranged in the power battery in a penetrating mode, and the first end of the connecting piece sequentially penetrates through the power battery and the vehicle body floor to extend out of the side, away from the power battery, of the vehicle body floor, is matched with the matching piece and is used for connecting the power battery to the vehicle body floor; the sealing assembly comprises a first sealing piece and a second sealing piece, and the first sealing piece is connected between the matching piece and the vehicle body floor in a sealed mode. The second sealing piece is arranged on the outer side of the connecting piece in a sleeving mode, and the second sealing piece is tightly attached to the vehicle body floor and the power battery along the two opposite sides in the axial direction of the connecting piece. According to the vehicle body structure, the sealing performance of the position where the power battery is connected with the vehicle body floor can be improved.

Description

Technical Field

[0001] The present application relates to, but is not limited to, the field of battery sealing technology, and in particular to a vehicle body structure and a vehicle. Background Art

[0002] The power battery is typically connected to the underside of the vehicle floor via a screw connection. Therefore, a connection hole for mounting the screw connection is provided at the location where the power battery connects to the vehicle floor. When the vehicle is exposed to excessive water depth or the location where the power battery connects to the vehicle floor is exposed to water, water can easily seep into the power battery through the connection hole, potentially affecting its performance. Therefore, a sealing structure is provided at the connection hole. However, in related art, the sealing structure utilizes a single sealing ring, which cannot achieve a high level of sealing performance, resulting in poor waterproofing at the location where the battery connects to the vehicle floor. Utility Model Content

[0003] The vehicle body structure provided in the embodiment of the present application can improve the sealing performance at the location where the power battery is connected to the vehicle body floor.

[0004] In a first aspect, an embodiment of the present application provides a vehicle body structure, comprising a vehicle body floor, a power battery, a connecting assembly, and a sealing assembly; the connecting assembly comprises a connecting piece and a mating piece, the connecting piece being inserted into the power battery, and the first end of the connecting piece sequentially extending through the power battery and the vehicle body floor to the outside of the vehicle body floor away from the power battery, and cooperating with the mating piece to connect the power battery to the vehicle body floor; the sealing assembly comprises a first sealing piece and a second sealing piece, the first sealing piece being sealingly connected between the mating piece and the vehicle body floor; the second sealing piece being sleeved on the outside of the connecting piece, and the second sealing piece being respectively tightly attached to the vehicle body floor and the power battery on opposite sides along the axial direction of the connecting piece.

[0005] In the vehicle body structure provided by the embodiment of the present application, the first end of the connector sequentially passes through the power battery and the vehicle body floor before mating with the mating member to connect the power battery to the vehicle body floor. The first seal is hermetically connected between the mating member and the vehicle body floor to provide a sealing effect between the mating member and the vehicle body floor, thereby reducing the infiltration of liquids such as water and oil into the power battery through the gap between the mating member and the vehicle body floor. The second seal is respectively in close contact with the vehicle body floor and the power battery on opposite sides of the axial direction of the connector, so that the second seal is sandwiched between the vehicle body floor and the power battery, forming a three-layer sandwich structure to provide a sealing effect between the vehicle body floor and the power battery, thereby reducing the infiltration of liquids such as water and oil into the power battery through the gap between the vehicle body floor and the power battery. The first seal and the second seal form a double-layer sealing structure at the location where the power battery connects to the vehicle body floor, thereby greatly improving the sealing performance at the location where the power battery connects to the vehicle body floor.

[0006] In a possible implementation of the present application, the first seal is annular and is disposed around the outside of the connecting member, and the first seal fully connects the mating member and the vehicle body floor along opposite sides of the connecting member in the axial direction.

[0007] Here, the first seal is connected to the bottom side of the mating part and the top side of the vehicle body floor along the opposite sides of the axial direction of the connecting part in a full circle, so that the first seal and the mating part, as well as the first seal and the vehicle body floor are sealed, so as to improve the sealing performance of the first seal between the mating part and the vehicle body floor, thereby further improving the sealing performance at the position where the power battery is connected to the vehicle body floor.

[0008] In a possible implementation of the present application, the end surface of the mating component facing the vehicle body floor is the first end surface, the first sealing component is fully connected to the first end surface, and the first sealing component is protruding relative to the first end surface.

[0009] Here, the first sealing member is provided to protrude relative to the first end surface, so as to facilitate connection between the first sealing member and the vehicle body floor.

[0010] In a possible implementation of the present application, the first sealing component and the matching component are integrally formed.

[0011] Here, the first sealing component and the matching component are integrally formed to facilitate processing and manufacturing of the first sealing component and the matching component.

[0012] In a possible implementation of the present application, the first seal is a full-circle weld foot provided between the mating component and the vehicle body floor, and the mating component is seal-welded to a side of the vehicle body floor away from the power battery through the full-circle weld foot.

[0013] Here, the full circle of weld feet makes it difficult for gaps to be generated at the connection position between the mating component and the vehicle body floor, thereby improving the sealing performance between the mating component and the vehicle body floor and facilitating the connection between the mating component and the vehicle body floor.

[0014] In a possible implementation of the present application, the second seal is made of an elastic material, and the second seal abuts against the vehicle body floor and the power battery on opposite sides along the axial direction of the connecting member, and is in a compressed state along the axial direction of the connecting member.

[0015] Here, the second seal is arranged in this way so that the second seal is tightly pressed against the bottom side of the vehicle body floor and the top side of the power battery on opposite sides along the axial direction of the connecting member, so that the second seal and the vehicle body floor, as well as the second seal and the power battery are in a sealed state, thereby improving the sealing performance of the second seal between the vehicle body floor and the power battery, thereby further improving the sealing performance of the power battery at the position where it is connected to the vehicle body floor.

[0016] In a possible implementation of the present application, the sealing assembly also includes a third seal, which is arranged around the outside of the connecting member and is located between the outside of the connecting member and the inside of the mating member, and the third seal is tightly attached to the outside of the connecting member and the inside of the mating member along its radial inner and outer sides respectively.

[0017] Here, the third seal is arranged between the connecting member and the matching member, and is respectively in close contact with the outer side of the connecting member and the inner side of the matching member, so as to play a sealing role between the outer side of the connecting member and the inner side of the matching member, thereby further improving the sealing performance of the position where the power battery is connected to the vehicle body floor; and, the third seal is respectively in close contact with the outer side of the connecting member and the inner side of the matching member along its radial direction, so that when the connecting member is affected by external factors such as vibration, external force twisting, etc., it can form resistance between the connecting member and the matching member, thereby making it less likely for the connecting member to loosen.

[0018] In a possible implementation of the present application, the vehicle body structure includes a plurality of connection components, and the connection components are spaced apart and arranged in the central area of ​​the power battery.

[0019] Here, multiple connecting components are added to the central area of ​​the power battery to connect the central area of ​​the power battery to the vehicle body floor, thereby improving the stability of the power battery connection. At the same time, multiple connecting components also form multiple installation points on the vehicle body floor to improve the bending and torsional stiffness of the vehicle body floor.

[0020] In a possible implementation of the present application, the vehicle body structure also includes a seat mounting beam, which is fixedly connected to the top side of the vehicle body floor, and the power battery is located on the bottom side of the vehicle body floor; the first end of the connecting member passes through the vehicle body floor and the seat mounting beam in sequence, and cooperates with the mating member.

[0021] Here, the connecting component connects the power battery to the vehicle body floor where the seat mounting beam is fixed, so that while the seat mounting beam is connected to the top side of the vehicle body floor, the seat mounting beam can also be connected to the power battery through the connecting component, thereby enhancing the assembly strength of the seat mounting beam and improving the installation effect of the seat.

[0022] In a second aspect, an embodiment of the present application further provides a vehicle comprising any vehicle body structure according to the first aspect.

[0023] The vehicle provided in this application includes the vehicle body structure of the first aspect, thereby achieving the same effect: a first seal is hermetically connected between the mating component and the vehicle body floor to provide a sealing effect between the mating component and the vehicle body floor; a second seal is closely attached to the vehicle body floor and the power battery on opposite sides of the axial direction of the connector, so that the second seal is sandwiched between the vehicle body floor and the power battery, forming a three-layer sandwich structure to provide a sealing effect between the vehicle body floor and the power battery. The first seal and the second seal form a double-layer sealing structure at the location where the power battery connects to the vehicle body floor, thereby greatly improving the sealing performance at the location where the power battery connects to the vehicle body floor. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the vehicle body structure provided by an embodiment of the present application where the power battery is connected to the vehicle body floor;

[0025] Figure 2 A schematic structural diagram of a matching component and a first sealing component in a vehicle body structure provided by an embodiment of the present application;

[0026] Figure 3 A schematic structural diagram of a connecting member and a third sealing member in a vehicle body structure provided in an embodiment of the present application;

[0027] Figure 4 A schematic diagram of the positions of connectors in the vehicle body structure provided in an embodiment of the present application.

[0028] Reference numerals:

[0029] 1-Body floor; 2-Power battery; 3-Connection assembly; 31-Connector; 311-First end; 32-Mating part; 321-First end face; 4-Sealing assembly; 41-First seal; 411-Full circle weld foot; 42-Second seal; 43-Third seal; 5-Sleeve; 6-Seat mounting beam. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the specific technical solutions of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application but are not intended to limit the scope of the present application.

[0031] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of this application, unless otherwise specified, "multiple" means two or more.

[0032] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to changes in the orientation of the components in the drawings.

[0033] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integrated connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0034] In the embodiments of the present application, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0035] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0036] The rapid development of new energy vehicles has significantly transformed the automotive industry. Compared to traditional fuel-powered vehicles, new energy vehicles have higher requirements for waterproofing to mitigate potential short circuits, such as in the power battery, caused by water intrusion in harsh environments like rainstorms and flooded roads.

[0037] The power battery is typically connected to the underside of the vehicle floor via a screw connection. Therefore, a connection hole for mounting the screw connection is provided at the location where the power battery connects to the vehicle floor. When the vehicle is exposed to excessive water depth or the location where the power battery connects to the vehicle floor is exposed to water, water can easily seep into the power battery through the connection hole, potentially affecting its performance. Therefore, a sealing structure is provided at the connection hole. However, in related art, the sealing structure utilizes a single sealing ring, which cannot achieve a high level of sealing performance, resulting in poor waterproofing at the location where the battery connects to the vehicle floor.

[0038] In view of this, the embodiment of the present application provides a vehicle body structure, see Figure 1, including a vehicle body floor 1, a power battery 2, a connecting assembly 3 and a sealing assembly 4; the connecting assembly 3 includes a connecting piece 31 and a matching piece 32, the connecting piece 31 is arranged in the power battery 2, and the first end 311 of the connecting piece 31 passes through the power battery 2 and the vehicle body floor 1 in sequence and extends to the side of the vehicle body floor 1 away from the power battery 2, and cooperates with the matching piece 32 to connect the power battery 2 to the vehicle body floor 1; the sealing assembly 4 includes a first sealing piece 41 and a second sealing piece 42, the first sealing piece 41 is sealingly connected between the matching piece 32 and the vehicle body floor 1; the second sealing piece 42 is sleeved on the outside of the connecting piece 31, and the second sealing piece 42 is respectively tightly attached to the vehicle body floor 1 and the power battery 2 on opposite sides along the axial direction of the connecting piece 31.

[0039] In the embodiment of the present application, the connecting member 31 can be configured in a rod-like or strip-like shape, and the matching member 32 can be configured in a shape that matches the first end 311 of the connecting member 31. In addition, the first end 311 of the connecting member 31 and the matching member 32 can be connected by screwing, welding, or the like.

[0040] For example, the connecting member 31 is set as a rod-shaped bolt, the matching member 32 is set as a waterproof nut, the first end 311 of the bolt passes through the power battery 2 and the vehicle body floor 1 in sequence and extends to the side of the vehicle body floor 1 away from the power battery 2, and the waterproof nut is screwed on the first end 311 of the bolt to connect the power battery 2 to the vehicle body floor 1.

[0041] In an embodiment of the present application, the first seal 41 can be set on the mating part 32 and sealed with the vehicle body floor 1; the first seal 41 can also be set on the vehicle body floor 1 and sealed with the mating part 32; the first seal 41 can also be set separately, and the first seal 41 is respectively sealed with the mating part 32 and the vehicle body floor 1.

[0042] In the embodiment of the present application, the second sealing member 42 can be set as an elastic annular structure such as a rubber ring, a silicone ring, etc., and the second sealing ring can also be set as a rigid annular structure such as a sealing steel ring, a sealing iron ring, etc., so as to be sleeved on the outside of the connecting member 31, and the second sealing member 42 is tightly attached to the vehicle body floor 1 and the power battery 2 on the opposite sides along the axial direction of the connecting member 31.

[0043] In the vehicle body structure provided by the embodiment of the present application, the first end 311 of the connector 31 sequentially passes through the power battery 2 and the vehicle body floor 1 before mating with the mating member 32 to connect the power battery 2 to the vehicle body floor 1. A first seal 41 is hermetically connected between the mating member 32 and the vehicle body floor 1, providing a seal between the mating member 32 and the vehicle body floor 1, thereby reducing the infiltration of liquids such as water and oil into the power battery 2 through the gap between the mating member 32 and the vehicle body floor 1. A second seal 42 is closely attached to the vehicle body floor 1 and the power battery 2 along opposite axial sides of the connector 31, forming a three-layer sandwich structure between the vehicle body floor 1 and the power battery 2. This seal prevents the infiltration of liquids such as water and oil into the power battery 2 through the gap between the vehicle body floor 1 and the power battery 2. The first and second seals 41 and 42 form a double-layer seal at the point where the power battery 2 connects to the vehicle body floor 1, significantly improving the sealing performance at this point.

[0044] In some possible embodiments of this application, see Figure 1 and Figure 2 The first sealing member 41 is annular and is disposed around the outside of the connecting member 31 , and the first sealing member 41 connects the mating member 32 and the vehicle body floor 1 along two opposite sides of the axial direction of the connecting member 31 in a full circle.

[0045] In the embodiment of the present application, the first seal 41 can be a flexible structure such as a rubber ring, a silicone ring, etc. In this case, the first seal 41 can be connected to the matching part 32 and the vehicle body floor 1 in a full circle on the opposite sides along the axial direction of the connecting part 31 by full circle bonding, full circle vulcanization, etc.; the first seal 41 can also be a rigid structure such as a steel ring, an iron ring, etc. In this case, the first seal 41 can be connected to the matching part 32 and the vehicle body floor 1 in a full circle on the opposite sides along the axial direction of the connecting part 31 by full circle welding; the first seal 41 can also be a full circle weld foot 411 to directly weld the matching part 32 to the vehicle body floor 1 in a full circle.

[0046] In the embodiment of the present application, the first seal 41 is connected to the bottom side of the mating part 32 and the top side of the vehicle body floor 1 along the opposite sides of the axial direction of the connecting part 31 in a full circle, so that the first seal 41 and the mating part 32, as well as the first seal 41 and the vehicle body floor 1 are sealed, so as to improve the sealing performance of the first seal 41 between the mating part 32 and the vehicle body floor 1, thereby further improving the sealing performance of the power battery 2 at the position where it is connected to the vehicle body floor 1.

[0047] In some possible embodiments of this application, see Figure 1 and Figure 2The end surface of the fitting 32 facing the vehicle body floor 1 is the first end surface 321 , the first sealing member 41 is connected to the first end surface 321 in a full circle, and the first sealing member 41 is protruded relative to the first end surface 321 .

[0048] In the embodiment of the present application, the first seal 41 can be connected to the first end surface 321 by full-circle welding, full-circle bonding, or other methods. The specific method can be set according to the material of the first seal 41 and actual needs. The first seal 41 and the first end surface 321 can also be integrally formed. The side of the first seal 41 away from the first end surface 321 can be connected to the vehicle body floor 1 by full-circle welding, full-circle bonding, or other methods, which are not specifically limited in this embodiment.

[0049] In the embodiment of the present application, the first sealing member 41 is provided to protrude relative to the first end surface 321 to facilitate the connection between the first sealing member 41 and the vehicle body floor 1 .

[0050] In some possible embodiments of the present application, the first sealing component 41 and the fitting component 32 are integrally formed to facilitate processing and manufacturing of the first sealing component 41 and the fitting component 32 .

[0051] In some possible embodiments of this application, see Figure 1 and Figure 2 The first sealing member 41 is a full-circle weld foot 411 provided between the fitting 32 and the vehicle body floor 1 . The fitting 32 is sealed and welded to the side of the vehicle body floor 1 away from the power battery 2 through the full-circle weld foot 411 .

[0052] In the embodiment of the present application, the full circle of weld feet 411 makes it difficult for gaps to be generated at the connection position between the mating part 32 and the vehicle body floor 1, thereby improving the sealing performance between the mating part 32 and the vehicle body floor 1 and facilitating the connection between the mating part 32 and the vehicle body floor 1.

[0053] In some possible embodiments of this application, see Figure 1 The second sealing member 42 is made of an elastic material, and the second sealing member 42 abuts against the vehicle body floor 1 and the power battery 2 on opposite sides along the axial direction of the connecting member 31, and is in a compressed state along the axial direction of the connecting member 31.

[0054] In the embodiment of the present application, the material of the second sealing member 42 can be set to rubber material, silicone material, etc., and the specific material can be set according to actual needs.

[0055] In the embodiment of the present application, the second seal 42 is arranged in this manner so that the second seal 42 is tightly pressed against the bottom side of the vehicle body floor 1 and the top side of the power battery 2 on opposite sides along the axial direction of the connecting member 31, so that the second seal 42 and the vehicle body floor 1, as well as the second seal 42 and the power battery 2 are in a sealed state, thereby improving the sealing performance of the second seal 42 between the vehicle body floor 1 and the power battery 2, thereby further improving the sealing performance of the power battery 2 at the position where the power battery 2 is connected to the vehicle body floor 1.

[0056] In the embodiment of the present application, since the second sealing member 42 is provided between the bottom side of the vehicle body floor 1 and the top side of the power battery 2, there is a certain distance between the bottom side of the vehicle body floor 1 and the top side of the power battery 2 along the axial direction of the connecting member 31. Therefore, a support member can be provided between the bottom side of the vehicle body floor 1 and the top side of the power battery 2 to improve the support strength between the power battery 2 and the vehicle body floor 1. For example, see Figure 1 The support member is configured as a sleeve 5, which is sleeved outside the connector 31 and located within the second sealing member 42. The sleeve 5 abuts the bottom side of the vehicle body floor 1 and the top side of the power battery 2 on opposite sides of the connector 31 along the axial direction. Furthermore, the support member may be configured as other structures and may be located at other locations between the bottom side of the vehicle body floor 1 and the top side of the power battery 2. This embodiment does not specifically limit this.

[0057] In some possible embodiments of this application, see Figure 1 and Figure 3 The sealing assembly 4 also includes a third sealing member 43, which is arranged around the outside of the connecting member 31 and is located between the outside of the connecting member 31 and the inside of the fitting 32, and the third sealing member 43 is tightly attached to the outside of the connecting member 31 and the inside of the fitting 32 along its radial inner and outer sides respectively.

[0058] In an embodiment of the present application, the third seal 43 can be made of an elastic material, such as a rubber material, a silicone material, etc., and the third seal 43 is in a compressed state along its radial direction, so that the third seal 43 is tightly attached to the outer side of the connector 31 and the inner side of the mating part 32 along its radial inner and outer sides respectively.

[0059] In the embodiment of the present application, the third sealing member 43 can be fixedly arranged on the outer side of the connecting member 31, that is, the third sealing member 43 can be fixedly connected to the outer side of the connecting member 31 along its radial inner side by bonding, vulcanization, etc., and the third sealing member 43 is tightly attached to the inner side of the fitting member 32 along its radial outer side. For example, the third sealing member 43 is a rubber ring whose inner side is vulcanized on the outer side of the connecting member 31. After the fitting member 32 is connected to the outer side of the connecting member 31, the rubber ring is in a compressed state, so that the outer side of the rubber ring is tightly attached to the inner side of the fitting member 32; the third sealing member 43 can also be fixedly arranged on the inner side of the fitting member 32, that is, the third sealing member 43 can be fixedly connected to the inner side of the fitting member 32 along its radial outer side by bonding, vulcanization, etc., and the third sealing member 43 is tightly attached to the connecting member 3 along its radial inner side. 1, for example, the third sealing member 43 is a silicone ring whose outer side is bonded to the inner side of the fitting member 32. After the fitting member 32 is connected to the outer side of the connecting member 31, the silicone ring is in a compressed state, so that the inner side of the silicone ring is tightly against the outer side of the connecting member 31; the third sealing member 43 can also be set separately, that is, before installing the connecting member 31 and the fitting member 32, the third sealing member 43 is first arranged around the outer side of the connecting member 31, and then the fitting member 32 is connected to the position where the third sealing member 43 is arranged on the connecting member 31. For example, the third sealing member 43 is set as an anti-loosening glue, and the anti-loosening glue is applied to the area on the outer side of the connecting member 31 corresponding to the inner side of the fitting member 32, so that after the fitting member 32 is connected to the connecting member 31, the anti-loosening glue fills the area between the outer side of the connecting member 31 and the inner side of the fitting member 32.

[0060] In the embodiment of the present application, the third seal 43 is arranged between the connecting member 31 and the fitting member 32, and is respectively in close contact with the outer side of the connecting member 31 and the inner side of the fitting member 32, so as to play a sealing role between the outer side of the connecting member 31 and the inner side of the fitting member 32, thereby further improving the sealing performance of the position where the power battery 2 is connected to the vehicle body floor 1; and, the third seal 43 is respectively in close contact with the outer side of the connecting member 31 and the inner side of the fitting member 32 along its radial direction, so as to form resistance between the connecting member 31 and the fitting member 32 when the connecting member 31 is affected by external factors such as vibration, external force twisting, etc., thereby making it difficult for the connecting member 31 to loosen.

[0061] In some possible embodiments of this application, see Figure 1 and Figure 4 The vehicle body structure includes a plurality of connection components 3 , and each connection component 3 is spaced apart and arranged in the central area of ​​the power battery 2 .

[0062] In the embodiment of the present application, a plurality of through holes are provided in the central area of ​​the power battery 2. The connecting parts 31 in each connecting assembly 3 pass through the corresponding through holes and the vehicle body floor 1 in sequence, and cooperate with the corresponding matching parts 32 to connect the power battery 2 to the vehicle body floor 1.

[0063] In this embodiment of the present application, the peripheral sides of the power battery 2 can be connected to the vehicle body floor 1 or other locations on the vehicle body via connection assemblies 3, or can be connected to the vehicle body floor 1 or other locations on the vehicle body via other connection structures. Furthermore, multiple connection assemblies 3 are added to the central area of ​​the power battery 2 to connect the central area of ​​the power battery 2 to the vehicle body floor 1, thereby improving the stability of the connection of the power battery 2. At the same time, the multiple connection assemblies 3 also form multiple mounting points on the vehicle body floor 1, thereby improving the bending and torsional stiffness of the vehicle body floor 1.

[0064] In some possible embodiments of this application, see Figure 1 The vehicle body structure also includes a seat mounting beam 6, which is fixedly connected to the top side of the vehicle body floor 1, and the power battery 2 is located on the bottom side of the vehicle body floor 1; the first end 311 of the connecting member 31 passes through the vehicle body floor 1 and the seat mounting beam 6 in sequence, and cooperates with the mating member 32.

[0065] In the embodiment of the present application, the seat mounting cross beam 6 can be fixedly connected to the top side of the vehicle body floor 1 by welding, screwing, etc., which is not specifically limited in this embodiment.

[0066] In an embodiment of the present application, the connecting component 3 connects the power battery 2 to the vehicle body floor 1 to which the seat mounting beam 6 is fixed, so that while the seat mounting beam 6 is connected to the top side of the vehicle body floor 1, the seat mounting beam 6 can also be connected to the power battery 2 through the connecting component 3 to enhance the assembly strength of the seat mounting beam 6 and improve the installation effect of the seat.

[0067] The present application also provides a vehicle, see Figure 1 、 Figure 2 、 Figure 3 as well as Figure 4 , including any of the above-mentioned body structures.

[0068] In the vehicle provided in the embodiments of the present application, a first seal 41 of the vehicle body structure is hermetically connected between the mating component 32 and the vehicle body floor 1, providing a seal between the mating component 32 and the vehicle body floor 1. A second seal 42 abuts the vehicle body floor 1 and the power battery 2 along opposite axial sides of the connector 31, forming a three-layer sandwich structure between the two, effectively sealing the two. The first and second seals 41, 42 form a double-layer seal at the location where the power battery 2 connects to the vehicle body floor 1, significantly improving the sealing performance at the location where the power battery 2 connects to the vehicle body floor 1. Furthermore, a third seal 43 is disposed between the connector 31 and the mating component 32. The third seal 43 abuts the outer side of the connector 31 and the inner side of the mating component 32 along its radially inner and outer sides, respectively, providing a seal between the connector 31 and the seal, further improving the sealing performance at the location where the power battery 2 connects to the vehicle body floor 1 and preventing loosening of the connector 31.

[0069] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A vehicle body structure, characterized in that: include: Car body floor (1); Power battery (2); A connection assembly (3), comprising a connection member (31) and a matching member (32), wherein the connection member (31) is inserted into the power battery (2), and a first end (311) of the connection member (31) sequentially passes through the power battery (2) and the vehicle body floor (1) and extends to a side of the vehicle body floor (1) away from the power battery (2), and matches with the matching member (32) to connect the power battery (2) to the vehicle body floor (1); The sealing assembly (4) comprises a first sealing member (41) and a second sealing member (42), wherein the first sealing member (41) is sealingly connected between the matching member (32) and the vehicle body floor (1); the second sealing member (42) is sleeved on the outside of the connecting member (31), and the second sealing member (42) is respectively in close contact with the vehicle body floor (1) and the power battery (2) on opposite sides of the axial direction of the connecting member (31).

2. The vehicle body structure according to claim 1, characterized in that: The first sealing member (41) is annular and is disposed around the outside of the connecting member (31), and the first sealing member (41) is connected to the matching member (32) and the vehicle body floor (1) in a full circle along two opposite sides of the axial direction of the connecting member (31).

3. The vehicle body structure according to claim 2, characterized in that: The end face of the matching component (32) facing the vehicle body floor (1) is a first end face (321), the first sealing component (41) is connected to the first end face (321) in a full circle, and the first sealing component (41) is arranged to protrude relative to the first end face (321).

4. The vehicle body structure according to claim 3, characterized in that: The first sealing component (41) and the matching component (32) are integrally formed.

5. The vehicle body structure according to claim 2, characterized in that: The first sealing member (41) is a full-circle weld foot (411) arranged between the matching member (32) and the vehicle body floor (1), and the matching member (32) is seal-welded to a side of the vehicle body floor (1) away from the power battery (2) via the full-circle weld foot (411).

6. The vehicle body structure according to claim 1, characterized in that: The second sealing member (42) is made of an elastic material, and the second sealing member (42) abuts against the vehicle body floor (1) and the power battery (2) at two opposite sides along the axial direction of the connecting member (31), and is in a compressed state along the axial direction of the connecting member (31).

7. The vehicle body structure according to any one of claims 1 to 6, characterized in that: The sealing assembly (4) further comprises a third sealing member (43), the third sealing member (43) being arranged around the outer side of the connecting member (31) and being located between the outer side of the connecting member (31) and the inner side of the matching member (32), and the third sealing member (43) being respectively in close contact with the outer side of the connecting member (31) and the inner side of the matching member (32) along its radial inner side and outer side.

8. The vehicle body structure according to any one of claims 1 to 6, characterized in that: The vehicle body structure comprises a plurality of the connection components (3), and the connection components (3) are arranged at intervals in the central area of ​​the power battery (2).

9. The vehicle body structure according to any one of claims 1 to 6, characterized in that: It also comprises a seat mounting crossbeam (6), wherein the seat mounting crossbeam (6) is fixedly connected to the top side of the vehicle body floor (1), and the power battery (2) is located on the bottom side of the vehicle body floor (1); The first end (311) of the connecting member (31) passes through the vehicle body floor (1) and the seat mounting cross beam (6) in sequence, and cooperates with the matching member (32).

10. A vehicle, characterized in that: include: The vehicle body structure according to any one of claims 1 to 9.

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