Energy cabin frame, vehicle body and vehicle

Abstract

The utility model is suitable for the field of vehicles, and provides an energy cabin frame, a vehicle body and a vehicle, the energy cabin frame comprises at least two sealing pieces, a first beam body extending in the first direction and a second beam body extending in the second direction, and the first direction intersects with the second direction; the first beam body and the second beam body are connected in a sealing manner to define an accommodating space for accommodating the battery monomers; a first partition part is arranged in the first beam body and divides an inner cavity of the first beam body into a first area and a second area, and the first area is located on the side, close to the containing space, of the second area; at least one sealing element is arranged at one end of the first area along the first direction, and at least another sealing element is arranged at the other end of the first area along the first direction so as to seal two opposite ends of the first area along the first direction. According to the energy cabin frame provided by the embodiment of the invention, the sealing reliability is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and in particular to an energy cabin frame, a vehicle body and a vehicle. Background Art

[0002] Energy conservation and emission reduction are the key to the sustainable development of the automobile industry. New energy vehicles have become an important part of the sustainable development of the automobile industry due to their energy-saving and environmental protection advantages.

[0003] At present, the energy cabin of some new energy vehicles includes an energy cabin frame and a battery cell arranged in the energy cabin frame, and the energy cabin frame includes a crossbeam and a longitudinal beam connected to each other. The traditional longitudinal beam has a "mouth"-shaped cross section, and the end face of this longitudinal beam can be connected to the crossbeam, so that the longitudinal beam can effectively support the crossbeam, but it is not suitable to open a connection hole on the longitudinal beam for connecting to the body structure, otherwise it will affect the sealing of the energy cabin; another longitudinal beam has a "sun"-shaped cross section, and the longitudinal beam is divided into a wet area and a dry area. The dry area is used to connect the crossbeam and the wet area is provided with a connection hole for connecting to the body structure. However, the dry area and the wet area cannot be effectively separated, and there are hidden dangers in the sealing of the longitudinal beam, causing problems with the overall sealing of the energy cabin. Utility Model Content

[0004] In view of this, the present application provides an energy cabin frame, a vehicle body and a vehicle, which can improve the sealing reliability of the energy cabin frame.

[0005] An embodiment of the first aspect of the present application proposes an energy cabin frame, comprising at least two seals, a first beam extending along a first direction and a second beam extending along a second direction, the first direction intersecting with the second direction, the first beam being sealed and connected to the second beam to enclose a storage space for accommodating a battery cell; a first partition is provided in the first beam, the first partition divides the inner cavity of the first beam into a first zone and a second zone, the first zone being located on a side of the second zone close to the storage space; at least one seal is arranged at one end of the first zone along the first direction, and at least another seal is arranged at the other end of the first zone along the first direction to close the opposite ends of the first zone along the first direction.

[0006] In the energy cabin frame provided in the embodiment of the present application, the first beam body is connected to the second beam body and encloses a storage space for accommodating battery cells. The first partition divides the inner cavity of the first beam body into a first zone and a second zone. The first zone is located on the side of the second zone close to the storage space, and seals are respectively provided at opposite ends of the interior of the first zone along the first direction. The two seals jointly seal the first zone, so that the first zone can be effectively separated from the second zone, so that the first zone has better sealing performance, and the first zone can effectively block external water vapor from entering the storage space, thereby improving the sealing reliability of the energy cabin frame.

[0007] In some embodiments, the inner cavity of the first beam body penetrates the first beam body along the first direction, and the first beam body has first end surfaces at both ends along the first direction, the first end surfaces are welded to the side surfaces of the second beam body to form a closed welding mark, the orthographic projection of the first partition portion on the second beam body is located inside the welding mark, and the second beam body at least covers the opening of the first area.

[0008] By adopting the above technical solution, a closed welding mark is formed between the first beam body and the second beam body, which reduces the risk of water vapor entering the first area from the welding point between the first beam body and the second beam body. At the same time, the first reinforcing beam is located inside the welding mark, which reduces the risk of water vapor entering the first area from the first reinforcing beam.

[0009] In some embodiments, the first beam body includes a main beam and a lifting ear arranged on a side of the main beam away from the accommodating space, the first area and the second area are both located in the main beam, and the main beam is abutted against and welded to the side of the second beam body.

[0010] By adopting the above technical solution, the first beam body includes a main beam and a lifting lug. The main beam can be welded to the side of the second beam body to improve the overall structural strength and energy absorption effect of the energy cabin frame. The lifting lug can be connected to the vehicle body structure. The energy cabin frame not only serves to accommodate battery cells, but also can be conveniently connected to the vehicle body structure.

[0011] In some embodiments, the end of the first zone and the end of the second zone are both connected to the second beam body, and the second beam body covers the opening of the first zone and the opening of the second zone.

[0012] By adopting the above technical solution, the ends of the first zone and the second zone can be connected to the second beam body, so that the outside of the second zone can support the first beam body to play a structural supporting and force-bearing role.

[0013] In some embodiments, the sealing member is a foam member.

[0014] Since the foaming member can foam and expand under preset conditions, the foaming member can effectively seal the end of the first zone, and the sealing effect is good.

[0015] In some embodiments, at either end of the first beam body, a distance from the seal to the first end surface is greater than or equal to 50 mm.

[0016] In the embodiment of the present application, the distance from the seal to the first end face is set to be greater than or equal to 50 mm, so that the seal can avoid the heat affected zone of welding, thereby reducing the risk of premature foaming or damage of the seal due to the heat of welding.

[0017] In some embodiments, a first connection hole is provided on the wall of the second zone, and the first connection hole is used to connect to the vehicle body structure.

[0018] By adopting the above-mentioned technical solution, the energy cabin frame provided in the embodiment of the present application can be provided with a first connecting hole on the second area of ​​the first beam body to facilitate connection to the vehicle body structure, while the first area can still remain sealed. The energy cabin frame provided in the embodiment of the present application solves the sealing problem caused by the inaccessibility of welding at the central partition of the multi-cavity profile, thereby improving the sealing reliability of the energy cabin frame.

[0019] In some embodiments, a plurality of second partitions are disposed in the first zone, and the plurality of second partitions divide the inner cavity of the first zone into a plurality of first sub-cavities, and the sealing element is disposed in each of the first sub-cavities.

[0020] By arranging a sealing member in each first sub-cavity, each first sub-cavity can have a dry area, thereby improving the sealing performance of the energy cabin frame.

[0021] In some embodiments, the plurality of second partitions are retracted toward the interior of the first beam body relative to the end surface of the first beam body, the plurality of seals in the first subcavities are integrally connected, and the seals are abutted against the second partitions.

[0022] By adopting the above technical solution, the second partition can limit the seal, and the seal is at a certain distance from the opening of the first zone, which can reduce the impact of welding heat on the seal.

[0023] In some embodiments, a positioning portion for fixing the sealing element is provided on the inner wall of the first zone.

[0024] By providing a positioning portion on the inner wall of the first zone, the position of the sealing member can be limited so that the sealing member is accurately positioned inside the first zone.

[0025] In some embodiments, the first beam body is a side beam, the second beam body is a cross beam, and an end surface of the first beam body is connected to the second beam body.

[0026] By adopting the above technical solution, the end face of the first beam body is connected to the second beam body, and the first beam body and the second beam body are spliced ​​into a frame structure. The seal in the first beam body can seal the first area, reducing the risk of water vapor entering the accommodation space, and the first beam body can support the second beam body, thereby improving the structural strength of the energy cabin frame.

[0027] The embodiment of the second aspect of the present application provides a vehicle body, comprising:

[0028] Battery cells;

[0029] As in the energy compartment frame of the first aspect, the energy compartment frame is used to accommodate the battery cells.

[0030] An embodiment of the third aspect of the present application is a vehicle, comprising a vehicle body as provided in the second aspect.

[0031] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or conventional technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0033] Figure 1 is a partial schematic diagram of an energy cabin frame provided in some embodiments of the present application;

[0034] Figure 2 is a partial schematic diagram of a first beam body provided in some embodiments of the present application;

[0035] Figure 3 is a cross-sectional schematic diagram of a first beam body and a sealing member provided in some embodiments of the present application;

[0036] Figure 4 is a cross-sectional schematic diagram of a first beam body and a sealing member provided in some other embodiments of the present application;

[0037] Figure 5 is an exploded schematic diagram of an energy cabin frame provided in some embodiments of the present application;

[0038] Figure 6 is a schematic diagram of multiple battery cells provided in some embodiments of the present application.

[0039] The meanings of the marks in the figure are:

[0040] 100, energy cabin frame; 10, first beam body; 101, first zone; 1011, first sub-cavity; 102, second zone; 1021, first connecting hole; 103, first end face; 11, main beam; 111, first partition; 112, second partition; 12, lifting ear; 121, second connecting hole; 20, second beam body; 30, sealing element; 40, torque box; 200, accommodating space; 300, battery cell; P1, first welding point; P2, second welding point. DETAILED DESCRIPTION

[0041] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0043] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0044] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0045] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0046] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0047] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.

[0048] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0049] In the present application, battery cells may include lithium-ion secondary battery cells, lithium-ion primary battery cells, lithium-sulfur battery cells, sodium-lithium-ion battery cells, sodium-ion battery cells or magnesium-ion battery cells, etc., and the embodiments of the present application do not limit this. Battery cells may be cylindrical, flat, rectangular or other shapes, etc., and the embodiments of the present application do not limit this. Battery cells are generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells and soft-pack battery cells, and the embodiments of the present application do not limit this.

[0050] The battery mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity. For example, the battery mentioned in the present application may include a battery module or a battery pack.

[0051] The technical solution described in the embodiments of the present application is applicable to vehicles, which may be fuel vehicles, gas vehicles or new energy vehicles. The new energy vehicles may be pure electric vehicles, hybrid vehicles or extended-range vehicles, etc. The embodiments of the present application do not impose any special restrictions on the above-mentioned vehicles.

[0052] At present, the energy cabin of some new energy vehicles includes an energy cabin frame and a battery cell arranged in the energy cabin frame, and the energy cabin frame includes a crossbeam and a longitudinal beam connected to each other. The traditional longitudinal beam has a "mouth"-shaped cross section, and the end face of the longitudinal beam can be connected to the crossbeam, so that the longitudinal beam can effectively support the crossbeam, but it is not suitable to open a connection hole for connecting the vehicle body on the longitudinal beam, otherwise the storage space of the energy cabin frame will be connected to the external space of the energy cabin frame, affecting the sealing of the energy cabin; another longitudinal beam has a "sun"-shaped cross section, specifically, the longitudinal beam includes an inner part of the storage space close to the energy cabin frame and an outer part of the storage space away from the energy cabin frame, the outer part of the longitudinal beam is a wet area and the inner part of the longitudinal beam has a dry area, the wet area and the dry area are separated from each other, the dry area of ​​the longitudinal beam is used to connect the crossbeam and a connection hole is opened on the wet area, and the connection hole connects the wet area and the external space of the energy cabin frame.

[0053] In the related art, if only the inner part of the longitudinal beam is welded to the cross beam, the outer part of the longitudinal beam is suspended outside the cross beam, and the structural contribution of the outer part of the longitudinal beam cannot be utilized; if both the inner part of the longitudinal beam and the outer part of the longitudinal beam are welded to the cross beam, the partition wall between the dry area and the wet area cannot be welded to the cross beam, resulting in the dry area and the wet area cannot be effectively separated, making the entire longitudinal beam a wet area, and there are problems with the overall sealing of the energy cabin.

[0054] In view of this, the present application designs an energy cabin frame to solve the sealing problem of the energy cabin frame. The embodiment of the present application provides an energy cabin frame, including a first beam body and a second beam body, the first beam body and the second beam body enclose a storage space for accommodating battery cells; a first partition is provided in the first beam body, and the first partition divides the inner cavity of the first beam body into a first zone and a second zone, and the first zone is located on the side of the second zone close to the storage space; the interior of the first zone is provided with sealing members at opposite ends along the first direction, and the two sealing members jointly seal the first zone. In the above-mentioned energy cabin frame, the first beam body is separated into the first zone and the second zone by the first partition, and the opposite ends of the first zone along the first direction are sealed by sealing members, so that the first zone can be effectively separated from the second zone, so that the sealing of the first zone is better, and the first zone can effectively block external water vapor from entering the storage space, thereby improving the overall sealing of the energy cabin frame.

[0055] An embodiment of the first aspect of the present application provides an energy cabin frame, which is arranged in a vehicle and is used to install battery cells.

[0056] Figure 1 This is a partial schematic diagram of the energy cabin frame 100 provided in some embodiments of the present application, please refer to Figure 1The energy cabin frame 100 includes at least two seals 30, a first beam body 10 extending along a first direction and a second beam body 20 extending along a second direction, the first direction intersects with the second direction, the first beam body 10 and the second beam body 20 are sealed and connected to enclose a storage space 200 for accommodating battery cells; a first partition 111 is provided in the first beam body 10, and the first partition 111 divides the inner cavity of the first beam body 10 into a first area 101 and a second area 102, and the first area 101 is located on a side of the second area 102 close to the storage space 200; at least one seal 30 is arranged at one end of the first area 101 along the first direction and at least another seal 30 is arranged at the other end of the first area 101 along the first direction to close the opposite ends of the first area 101 along the first direction.

[0057] The energy cabin frame 100 is a frame structure. Optionally, the energy cabin frame 100 is a square frame. The energy cabin frame 100 includes two first beams 10 and two second beams 20. Figure 1 A first beam body 10 and a second beam body 20 are schematically shown.

[0058] The first beam body 10 extends along a first direction X, and the second beam body 20 extends along a second direction Y. In this embodiment, the first direction X is the longitudinal direction (or length direction) of the vehicle, and the second direction Y is the transverse direction (or width direction) of the vehicle. The first direction X is perpendicular to the second direction Y. Of course, in other embodiments, the first direction and the second direction may intersect at other angles. The first beam body 10 and the second beam body 20 may be fixedly connected by welding. In other embodiments, the first beam body 10 and the second beam body 20 may also be fixedly connected by bolt connection, riveting, etc. The first beam body 10 and / or the second beam body 20 may be made of aluminum alloy extruded profiles, which are conducive to the lightweight of the vehicle while ensuring structural strength. It can be understood that the first beam body 10 and / or the second beam body 20 may also be made of other materials, such as magnesium alloy.

[0059] Please refer to Figures 1 to 3 , a hollow inner cavity is provided in the first beam body 10 to reduce the weight of the first beam body 10; the inner cavity of the first beam body 10 runs through the opposite sides of the first beam body 10; a first partition 111 is provided in the first beam body 10, and the first partition 111 extends along the first direction and is connected between the two opposite walls of the inner cavity to divide the inner cavity of the first beam body 10 into a first area 101 and a second area 102. The width direction of the first partition 111 intersects both the first direction X and the second direction Y. In this embodiment, the width direction of the first partition 111 is the third direction Z, and the third direction Z is perpendicular to the first direction X and the second direction Y. The first partition 111 can be a reinforcing rib.

[0060] The first area 101 is located on the side of the second area 102 close to the accommodation space 200, that is, the first area 101 is located on the inner side of the first beam body 10, and the second area 102 is located on the outer side of the first beam body 10. The first area 101 is separated from the second area 102, which means that the first area 101 and the second area 102 are not connected to each other. Among them, the first area 101 is a dry area, and the wall of the second area 102 may be provided with a first connection hole 1021 for connecting to the vehicle body structure. The energy bin frame is connected to the vehicle body structure through the first connection hole 1021. The first connection hole 1021 connects the second area 102 and the external space of the energy cabin frame 100, so that the second area 102 is a wet area.

[0061] Sealing members 30 are respectively disposed at two opposite ends of the first area 101 along the first direction X, and the two sealing members 30 seal the first area 101 together. Figure 1 It is shown that a sealing member 30 is disposed at one end of the first area 101 along the first direction X. It can be understood that a sealing member 30 is also disposed at the other end of the first area 101. The sealing member 30 can be a sealing body such as a foaming member, a sealant, a UV curing glue, a sealing foam, etc. The sealing member 30 can be closely attached to the inner wall of the first area 101 to seal the first area 101.

[0062] In the energy cabin frame 100 provided in the embodiment of the present application, the first beam body 10 is connected to the second beam body 20 and encloses a storage space 200 for accommodating a battery cell. The first partition 111 divides the inner cavity of the first beam body 10 into a first zone 101 and a second zone 102. The first zone 101 is located on the side of the second zone 102 close to the storage space 200, and seals 30 are respectively provided at opposite ends of the interior of the first zone 101 along the first direction X. The two seals 30 jointly seal the first zone 101, so that the first zone 101 can be effectively separated from the second zone 102, so that the first zone 101 has better sealing performance, and the first zone 101 can effectively block external water vapor from entering the storage space 200, thereby improving the sealing reliability of the energy cabin frame 100. The first area 101 of the energy cabin frame 100 is located between the two seals 30 and is a dry area. It is not connected to the outside world, which solves the problem that water vapor easily enters the dry area from the end of the partition wall; the second area 102 is arranged on the side of the first area 101 away from the accommodating space 200, and a connection hole can be set on the second area 102 to facilitate the connection to the vehicle body structure; the first area 101 and the second area 102 can both be connected to the second beam body 20, so that the first beam body 10 has better support for the second beam body 20. The energy cabin frame 100 provided in this application has a simple structure, is easy to implement, can effectively separate the dry area and the wet area, and improves the overall sealing of the energy cabin frame 100.

[0063] Please refer to Figures 1 to 3The inner cavity of the first beam body 10 penetrates the first beam body 10 along the first direction X, and the first beam body 10 has a first end surface 103 at both ends along the first direction X respectively. The first end surface 103 is welded to the side surface of the second beam body 20 and forms a closed welding mark. The orthographic projection of the first partition portion 111 on the second beam body 20 is located inside the welding mark, and the second beam body 20 at least covers the opening of the first area 101.

[0064] The first beam body 10 may be an aluminum extrusion, so that the inner cavity of the first beam body 10 passes through opposite ends of the first beam body 10 along the first direction X, so that both ends of the first beam body 10 have openings.

[0065] The first end face 103 of the first beam body 10 is abutted against and welded to the side face of the second beam body 20, wherein the first end face 103 can be completely abutted against the second beam body 20, or the first end face 103 can be partially abutted against the second beam body 20. For example, the first beam body 10 includes a main beam 11 and a lifting ear 12 arranged on one side of the main beam 11, the main beam 11 is abutted against the second beam body 20, and the lifting ear 12 is arranged on the outer side of the second beam body 20.

[0066] The first end surface 103 is welded to the side surface of the second beam body 20 to form a closed welding mark. The closed welding mark can play a sealing role and reduce the risk of water vapor entering the second beam body 20 and the accommodating space 200 from the welding point. Figure 1 The figure illustrates the first welding point P1 and the second welding point P2 in the welding mark, and the welding mark includes two horizontal welding marks and two vertical welding marks. A horizontal welding mark is provided between the first welding point P1 and the second welding point P2, and the two horizontal welding marks can be symmetrically arranged; a vertical welding mark extends from the first welding point P1 along the third direction Z, and the other vertical welding mark extends from the second welding point P2 along the third direction Z, and the horizontal welding mark is connected to the vertical welding mark.

[0067] like Figure 1 As shown, in this embodiment, the projection of the first partition 111 toward the second beam body 20 is located inside the welding mark, that is, the welding mark is arranged around the first partition 111, and the opening of the first area 101 and at least part of the opening of the second area 102 are closed by the second beam body 20. Optionally, the openings of the first area 101 and the second area 102 are both covered by the second beam body 20, which can improve the support strength of the first beam body 10 to the second beam body 20.

[0068] By adopting the above technical solution, a closed welding mark is formed between the first beam body 10 and the second beam body 20, which reduces the risk of water vapor entering the first area 101 from the welding point between the first beam body 10 and the second beam body 20. At the same time, the first reinforcing beam is located inside the welding mark, which reduces the risk of water vapor entering the first area 101 from the first reinforcing beam.

[0069] In some embodiments, please refer to Figure 2 The first beam body 10 includes a main beam 11 and a lifting ear 12 arranged on the side of the main beam 11 away from the accommodating space 200. The first area 101 and the second area 102 are both located in the main beam 11, and the main beam 11 is abutted against and welded to the side of the second beam body 20.

[0070] The main beam 11 is the main part of the first beam body 10, and the lug 12 is located on the outside of the main beam 11. The lug 12 is used to connect to the vehicle body structure, and a second connection space for connecting to the vehicle body structure is provided on the lug 12. The main beam 11 and the lug 12 both extend along the first direction X. Optionally, the main beam 11 and the lug 12 are integrally formed, so that the structural strength of the first beam body 10 is relatively high. It can be understood that the main beam 11 and the lug 12 can also be fixedly connected by welding or the like.

[0071] The end face of the main beam 11 along the first direction X and the end face of the lifting ear 12 along the first direction X can be arranged flush to jointly constitute the first end face 103 of the first beam body 10. Optionally, the end face of the main beam 11 along the first direction X and the end face of the lifting ear 12 along the first direction X may not be flush. In this case, the first end face 103 is the end face of the main beam 11.

[0072] The main beam 11 is abutted against and welded to the side of the second beam body 20, the opening of the first area 101 is covered by the second beam body 20, and at least part of the opening of the second area 102 is covered by the second beam body 20. It can be understood that when the end face of the main beam 11 is completely abutted against the second beam body 20, the opening of the second area 102 is also completely covered by the second beam body 20. At this time, the main beam 11 can fully support the first beam body 10, thereby improving the overall structural strength of the energy cabin frame 100, and the main beam 11 can withstand the collision force transmitted by the second beam body 20, thereby improving the energy absorption effect of the energy cabin frame 100.

[0073] By adopting the above-mentioned technical scheme, the first beam body 10 includes a main beam 11 and a lifting lug 12. The main beam 11 can be welded to the side of the second beam body 20 to enhance the overall structural strength and energy absorption effect of the energy cabin frame 100. The lifting lug 12 can be connected to the vehicle body structure. The energy cabin frame 100 not only serves to accommodate battery cells, but can also be conveniently connected to the vehicle body structure.

[0074] In some embodiments, the ends of the first area 101 and the ends of the second area 102 are both connected to the second beam body 20, and the second beam body 20 covers the opening of the first area 101 and the opening of the second area 102. In this way, the ends of the first area 101 and the second area 102 can be connected to the second beam body 20, so that the outside of the second area 102 can support the first beam body 10 to play a structural support and force role.

[0075] In some embodiments, the sealing member 30 is a foam member.

[0076] The foaming piece is made of a foaming material, which is also called a foaming agent, and refers to a foaming material that can generate bubbles inside a substance to make it a porous substance. In some embodiments, the foaming piece can be an EVA foaming material, which is the abbreviation of ethylene-vinyl acetate copolymer and is a plastic material that can be foamed into a material with unique physical properties. The EVA foaming material can foam and expand under the conditions of baking and heating. Of course, the foaming piece can also include other foaming materials, such as EPE pearl cotton, etc.

[0077] Since the foaming member can foam and expand under preset conditions, the foaming member can effectively seal the end of the first area 101, and the sealing effect is good.

[0078] Please refer to Figure 1 In some embodiments, at either end of the first beam body 10 , the distance from the seal 30 to the first end surface 103 is greater than or equal to 50 mm.

[0079] Figure 1 D1 in the figure represents the distance from the seal 30 to the first end face 103. The distance from the seal 30 to the first end face 103 refers to the minimum distance from the seal 30 to the first end face 103 when the seal 30 is initially loaded into the first zone 101. When manufacturing the energy cabin frame 100, the seal 30 is first loaded into the first zone 101 and fixed, and then the first end face 103 of the first beam body 10 is welded to the second beam body 20. After the energy cabin frame 100 is welded, the energy cabin frame 100 is baked in a drying room. The seal 30 is heated to foam and expand, thereby closing the first zone 101, and preventing moisture or water transferred from the second zone 102 from continuing to advance into the first zone 101 and the accommodation space 200.

[0080] In the embodiment of the present application, the distance from the seal 30 to the first end face 103 is set to be greater than or equal to 50 mm, so that the seal 30 can avoid the welding heat affected zone, reducing the risk of premature foaming or damage of the seal 30 due to the heat of welding.

[0081] Please refer to Figure 1 and Figure 2 In some embodiments, a first connection hole 1021 is provided on the wall of the second zone 102, and the first connection hole 1021 is used to connect to the vehicle body structure.

[0082] One or more first connection holes 1021 are provided on the second area 102, and the first connection holes 1021 are used to connect to the vehicle body structure, such as the upper body or the lower body. By providing the first connection holes 1021 on the second area 102, the energy cabin frame 100 is not only used as a frame for installing battery cells, but also used to connect to the vehicle body structure.

[0083] Since the second area 102 is provided with the first connection hole 1021, water vapor may enter the second area 102 from the first connection hole 1021, so that the second area 102 is a wet area. At the same time, since the welding mark surrounds the joint between the first beam body 10 and the second beam body 20, but the welding of the first partition may not reach the position, that is, the first partition is not welded to the second beam body 20, therefore, the water vapor in the second area 102 may enter the first area 101 from between the first partition and the side of the second beam body 20.

[0084] In the first area 101, the area between the seal 30 and the second beam body 20 is a wet area (the inner wall of the wet area facing the accommodation space 200 is not suitable for opening holes), and the area between the two seals 30 is a dry area. Even if the water vapor in the second area 102 enters the wet area of ​​the first area 101 through the gap between the first partition and the second beam body 20, the area between the two seals 30 is still a dry area. Under the blocking effect of the seal 30, the water vapor is not easy to enter the dry area of ​​the first area 101, and then it is not easy to enter the accommodation space 200 of the battery cell.

[0085] By adopting the above-mentioned technical solution, the energy cabin frame 100 provided in the embodiment of the present application can be provided with a first connecting hole 1021 on the second area 102 of the first beam body 10 to facilitate connection to the vehicle body structure, while the first area 101 can still remain sealed. The energy cabin frame 100 provided in the embodiment of the present application solves the sealing problem caused by the inaccessible welding at the central partition of the multi-cavity profile, thereby improving the sealing reliability of the energy cabin frame 100.

[0086] In other embodiments, the first connection hole 1021 may not be provided in the second zone 102 , and the energy cabin frame 100 is connected to the vehicle body structure through the second connection hole 1021 on the lifting ear 12 .

[0087] At either end of the first beam body 10 , the minimum distance from the first connection hole 1021 to the second beam body 20 is greater than the distance from the sealing member 30 to the second beam body 20 .

[0088] One or more first connection holes 1021 are provided on the second area 102. When a plurality of first connection holes 1021 are provided on the second area 102, at any end of the first beam body 10 along the first direction X, the distance from the first connection hole 1021 closest to the second beam body 20 to the second beam body 20 is the minimum distance from the first connection hole 1021 to the second beam body 20. Figure 1 D2 in the figure represents the minimum distance from the first connection hole 1021 to the second beam body 20. For example, D2 may be 100 mm.

[0089] The distance between the seal 30 and the second beam 20 is also the distance D1 between the seal 30 and the first end face 103, so D2>D1. The opening position of the first connection hole 1021 corresponds to the dry area in the first zone 101, reducing the risk of water vapor directly entering the wet area in the first zone 101 through the first connection hole 1021.

[0090] Please refer to Figure 3 and Figure 4 In some embodiments, the cross-sectional shape of the seal 30 is the same as the cross-sectional shape of the first region 101 .

[0091] The cross-sectional shape of the sealing member 30 is the same as that of the first region 101, that is, the cross-sectional shape of the sealing member 30 and the first region 101 is configured so that the sealing member 30 can be closely attached to the cavity wall of the first region 101. For example, the cross-sectional shape of the first region 101 can be square, and the cross-sectional shape of the sealing member 30 is also square; of course, the cross-sectional shape of the first region 101 can also be circular, trapezoidal, etc., and the cross-sectional shape of the sealing member 30 is the same as that of the first region 101. When the sealing member 30 is a foamed member, the cross-sectional shape of the sealing member 30 before foaming is the same as the cross-sectional shape after foaming.

[0092] By adopting the above technical solution, the sealing member 30 is configured to conform to the first area 101, and the sealing effect is better.

[0093] In other embodiments, when the seal 30 is a foamed piece, the cross-sectional shape of the seal 30 before foaming may be different from the cross-sectional shape of the first zone 101. Since the seal 30 expands after foaming and is restricted by the inner wall of the first zone 101, the cross-sectional shape of the seal 30 after foaming is the same as the cross-sectional shape of the first zone 101.

[0094] Please refer to Figures 1 to 4 In some embodiments, a plurality of second partitions 112 are provided in the first zone 101 , and the plurality of second partitions 112 divide the inner cavity of the first zone 101 into a plurality of first sub-cavities 1011 , and a sealing member 30 is provided in each first sub-cavity 1011 .

[0095] The second partition 112 extends along the first direction X, and can divide the inner cavity of the first area 101 into a plurality of first sub-cavities 1011. The plurality of first sub-cavities 1011 are all located on the side of the second area 102 facing the accommodation space 200. The second partition 112 can strengthen the structural strength of the first beam body 10. The second partition 112 can be a reinforcing rib. A sealing member 30 is provided in each first sub-cavity 1011, wherein, as Figure 3 As shown, the sealing members 30 in the plurality of first sub-cavities 1011 can be separately arranged; Figure 4 As shown, the sealing members 30 in the plurality of first sub-cavities 1011 may also be integrally provided.

[0096] By arranging a sealing member 30 in each first sub-cavity 1011 , each first sub-cavity 1011 may have a dry area, thereby improving the sealing performance of the energy cabin frame 100 .

[0097] Please refer to Figure 2 and Figure 4 In some embodiments, the plurality of second partitions 112 are retracted toward the interior of the first beam body 10 relative to the end surface of the first beam body 10 , the seals 30 in the plurality of first sub-cavities 1011 are integrally connected, and the seals 30 are abutted against the second partitions 112 .

[0098] Optionally, the second partition 112 is recessed relative to the first end surface 103 of the first beam body 10 by milling the end of the second partition 112 along the first direction X. During manufacturing, the integrated seal 30 is pushed into the interior of the first zone 101 from the opening of the first zone 101 until the seal 30 abuts against the second partition 112. The second partition 112 can limit the seal 30, and the seal 30 is a certain distance (for example, greater than or equal to 50 mm) from the opening of the first zone 101, which can reduce the influence of welding heat on the seal 30.

[0099] In some embodiments, a positioning portion for fixing the sealing member 30 is provided on the inner wall of the first region 101. The positioning portion may be a positioning groove, a positioning protrusion, or the like.

[0100] By providing a positioning portion on the inner wall of the first zone 101 , the position of the sealing member 30 can be limited, so that the sealing member 30 is accurately positioned inside the first zone 101 .

[0101] Please refer to Figure 1 and Figure 2 In some embodiments, the first beam body 10 is a side beam, the second beam body 20 is a cross beam, and the end surface of the first beam body 10 is connected to the second beam body 20.

[0102] The first beam 10 is a side beam, which is a beam extending in the longitudinal direction of the vehicle, and the two side beams are located on both sides of the width direction of the vehicle. The second beam 20 is a cross beam, which is a beam extending in the transverse direction of the vehicle, and the two cross beams are used as a front cross beam and a rear cross beam respectively.

[0103] The end face of the first beam body 10 is connected to the second beam body 20, and the first beam body 10 and the second beam body 20 are spliced ​​into a frame structure. The seal 30 in the first beam body 10 can seal the first area 101 to reduce the risk of water vapor entering the accommodating space 200, and the first beam body 10 can support the second beam body 20, thereby improving the structural strength of the energy cabin frame 100.

[0104] In other embodiments, the first beam body 10 may also be a cross beam, and the second beam body 20 may also be a side beam.

[0105] Please refer to Figure 5 The first beam body 10 is provided with a hollow cavity, and the second beam body 20 can be connected to the vehicle body structure such as the torsion box 40.

[0106] Please refer to Figures 1 to 5 In some embodiments, the energy cabin frame 100 includes two first beam bodies 10 and two second beam bodies 20, the first beam bodies 10 and the second beam bodies 20 are connected and used to enclose a storage space 200 for accommodating battery cells; a first partition 111 is provided in the first beam body 10, and the first partition 111 divides the inner cavity of the first beam body 10 into a first area 101 and a second area 102, and the first area 101 is located on the side of the second area 102 close to the storage space 200; a sealing member 30 is provided at the opposite ends of the first area 101 along the first direction, and the two sealing members 30 seal the first area 101 together, and the sealing member 30 can be a foam member. The first beam body 10 has a first end face 103 at both ends along the first direction X, and the first end face 103 is abutted and welded with the side of the second beam body 20, and the welding mark surrounds the first end face 103, and the orthographic projection of the first partition 111 on the second beam body 20 is located inside the welding mark, and the second beam body 20 covers the openings of the first area 101 and the second area 102. The energy cabin frame 100 provided in the embodiment of the present application solves the sealing problem caused by the inaccessibility of welding at the central partition of the multi-cavity profile, thereby improving the sealing reliability of the energy cabin frame 100; the first beam body 10 can support the second beam body 20, and the energy cabin frame 100 can be connected to the vehicle body structure through the second area 102, and can provide a sealed environment for the battery cell to meet the needs of the vehicle.

[0107] During production, corresponding seals are placed at both ends of the first beam body 10 and fixed; surrounding welding is performed at the joint between the first beam body 10 and the second beam body 20 to form an energy cabin frame; then, baking and heating are performed, the seals foam and expand, and the seals seal the first area; then an airtightness test is performed to test the sealing of the energy cabin frame 100.

[0108] Please refer to Figures 1 to 6 An embodiment of the second aspect of the present application provides a vehicle body, including a battery cell 300 and an energy cabin frame 100 as provided in the first aspect, and the energy cabin frame 100 is used to accommodate the battery cell 300.

[0109] The number of the battery cells 300 may be one or more, and the energy cabin frame 100 can not only accommodate the battery cells 300 but also serve as a part of the vehicle body.

[0110] The vehicle body provided in the embodiment of the present application may be a CTC vehicle body. The CTC (Cell to Chassis) technology directly integrates the battery cells into the vehicle chassis, realizing the integration of the battery and the chassis. Optionally, the energy cabin frame 100, the vehicle floor and the tray together form a receiving cavity, and the battery cells 300 are arranged in the receiving cavity; or, the energy cabin frame 100, the battery cover and the tray together form a receiving cavity, and the battery cells 300 are arranged in the receiving cavity.

[0111] The vehicle body provided in the embodiment of the present application utilizes an energy cabin frame 100 to accommodate the battery cells 300. The energy cabin frame 100 has good sealing properties, thereby improving the air tightness and water tightness of the vehicle body.

[0112] An embodiment of the third aspect of the present application provides a vehicle, comprising a vehicle body as provided in the second aspect.

[0113] The energy cabin frame 100 , vehicle body and vehicle provided in the embodiment of the present application can improve the sealing reliability of the energy cabin frame 100 .

[0114] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. An energy cabin frame, characterized in that: The battery pack comprises at least two sealing members, a first beam body extending along a first direction and a second beam body extending along a second direction, wherein the first direction intersects with the second direction, and the first beam body and the second beam body are sealed and connected to enclose a receiving space for receiving a battery cell; A first partition is provided in the first beam body, and the first partition divides the inner cavity of the first beam body into a first area and a second area, and the first area is located on a side of the second area close to the accommodating space; At least one of the seals is disposed at one end of the first area along the first direction, and at least another seal is disposed at the other end of the first area along the first direction, so as to close the opposite ends of the first area along the first direction.

2. The energy cabin frame according to claim 1, characterized in that: The inner cavity of the first beam body penetrates the first beam body along the first direction, and the first beam body has first end faces at both ends along the first direction respectively, the first end faces are welded to the side faces of the second beam body to form a closed welding mark, the orthographic projection of the first partition on the second beam body is located inside the welding mark, and the second beam body at least covers the opening of the first area.

3. The energy cabin frame according to claim 2, characterized in that: The first beam body includes a main beam and a lifting lug arranged on a side of the main beam away from the accommodating space. The first area and the second area are both located in the main beam. The main beam abuts against and is welded to a side surface of the second beam body.

4. The energy cabin frame according to claim 3, characterized in that: The end of the first zone and the end of the second zone are both connected to the second beam body, and the second beam body covers the opening of the first zone and the opening of the second zone.

5. The energy cabin frame according to claim 2, characterized in that: The sealing element is a foam element.

6. The energy cabin frame according to claim 5, characterized in that: At either end of the first beam body, a distance from the seal to the first end surface is greater than or equal to 50 mm.

7. The energy cabin frame according to any one of claims 1 to 6, characterized in that: A first connection hole is provided on the wall of the second zone, and the first connection hole is used for connecting to the vehicle body structure.

8. The energy cabin frame according to any one of claims 1 to 6, characterized in that: A plurality of second partitions are arranged in the first zone, and the plurality of second partitions divide the inner cavity of the first zone into a plurality of first sub-cavities, and the sealing element is arranged in each of the first sub-cavities.

9. The energy cabin frame according to claim 8, characterized in that: The plurality of second partitions are retracted relative to the end surface of the first beam body toward the inside of the first beam body, the plurality of sealing members in the first sub-cavities are integrally connected, and the sealing members are abutted against the second partitions.

10. The energy cabin frame according to any one of claims 1 to 6, characterized in that: A positioning portion for fixing the sealing element is provided on the inner wall of the first zone.

11. The energy cabin frame according to any one of claims 1 to 6, characterized in that: The first beam body is a side beam, the second beam body is a cross beam, and the end surface of the first beam body is connected to the second beam body.

12. A vehicle body, characterized in that: include: Battery cells; The energy cabin frame according to any one of claims 1 to 11, wherein the energy cabin frame is used to accommodate the battery cells.

13. A vehicle, characterized in that: Comprising the vehicle body as claimed in claim 12.

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