Vehicle body structure and vehicle

Abstract

The utility model relates to the technical field of vehicles, and discloses a vehicle body structure and a vehicle, the vehicle body structure comprises a vehicle body main body, a battery pack and a first thermal insulation layer, and the bottom of the vehicle body main body is provided with a mounting position; the battery pack is connected to the installation position, the first heat preservation layer is arranged between the battery pack and the installation position, and the thickness of the first heat preservation layer is 2-100 mm. According to the vehicle body structure and the vehicle, the first heat preservation layer is arranged between the battery pack and the mounting position of the vehicle body, the thickness of the first heat preservation layer ranges from 2 mm to 100 mm, and the first heat preservation layer corresponds to the assembly gap between the battery pack and the vehicle body, so that the assembly gap between the battery pack and the vehicle body is blocked, and the heat preservation effect of the battery pack is improved; the temperature loss of the battery pack caused by high-speed cold air flowing through the surface of the battery pack in the running process of the vehicle is avoided, so that the endurance mileage of the battery pack is ensured. Meanwhile, the standing heat preservation temperature of the vehicle and the battery pack is prevented from being reduced, and it is guaranteed that the charging time of the battery pack is not increased.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a vehicle body structure and a vehicle. Background Art

[0002] Currently, in the production process of electric vehicles, in order to avoid the situation where the battery pack cannot be installed during the final assembly of the vehicle, sufficient assembly clearance must be reserved between the battery pack and the vehicle body.

[0003] However, when the vehicle is driving at low temperatures, due to the assembly gap between the battery pack and the vehicle body, a large amount of high-speed cold air will flow over the surface of the battery pack, increasing the convection heat transfer coefficient on the surface of the battery pack, causing a large amount of temperature loss in the battery pack, and reducing the battery pack's range. In addition, the assembly gap also reduces the static insulation temperature of the vehicle and the battery pack, causing the battery pack to be too cold after being stationary, increasing the charging time for the same amount of electricity. Utility Model Content

[0004] In order to solve the above technical problems, the present application provides a body structure and a vehicle to improve the thermal insulation effect of the battery pack, thereby ensuring the battery pack's cruising range and charging time.

[0005] The technical solution adopted by this application to solve its technical problem is:

[0006] A vehicle body structure, comprising:

[0007] A vehicle body, wherein a mounting position is provided at the bottom of the vehicle body;

[0008] a battery pack connected to the mounting location; and

[0009] The first thermal insulation layer is disposed between the battery pack and the mounting position, and the thickness of the first thermal insulation layer is 2 to 100 mm.

[0010] In some embodiments, when the upper surface of the battery pack is not provided with a convex bump, the upper surface of the battery pack is completely covered with the first thermal insulation layer, or the first thermal insulation layer is provided around the edge of the upper surface of the battery pack;

[0011] When a bulge is provided at one end of the upper surface of the battery pack, the area on the upper surface of the battery pack where the bulge is not provided is a blocking area, and the blocking area completely covers the first thermal insulation layer, or the first thermal insulation layer is provided at the edge of the blocking area.

[0012] In some embodiments, a door sill outer beam and a battery pack fixing bracket are included, wherein the door sill outer beam is disposed on both sides of the mounting position, and the door sill outer beam and the mounting position form an upwardly protruding mounting groove, and the battery pack fixing bracket is connected to the door sill outer beam for fixing the battery pack at the mounting position and allowing the battery pack to be partially embedded in the mounting groove.

[0013] In some embodiments, the battery pack fixing bracket includes a first fitting surface, a second fitting surface and a third fitting surface, the first fitting surface is parallel to and vertically arranged with the second fitting surface, and the second fitting surface connects the first fitting surface and the second fitting surface.

[0014] The first thermal insulation layer includes a main body, a first covering portion arranged on both sides of the main body, and a second covering portion connecting the main body and the first covering portion, the main body covers the upper surface of the battery pack, the first covering portion is in contact with the first bonding surface, and the second covering portion is in contact with the second bonding surface and the third bonding surface.

[0015] In some embodiments, the main body includes a first blocking block extending along the length direction of the vehicle body and second blocking blocks arranged on both sides of the first blocking block. The first blocking block corresponds to the middle channel of the vehicle body and its thickness is greater than that of the second blocking block.

[0016] In some embodiments, the first covering portion is in the shape of a long strip and extends along the length direction of the vehicle body, the main body portion includes a first blocking strip and a second blocking strip arranged opposite to each other, and the first blocking strip connects one end of the two first covering portions through the second covering portion;

[0017] The second sealing strip is connected to the other ends of the two first covering parts through the second covering part, or is connected to the middle parts of the two first covering parts through the second covering part, and one side of the second sealing strip is in contact with the convex part of the battery pack;

[0018] A third blocking strip corresponding to the middle channel of the vehicle body is provided in the middle of the first blocking strip and the second blocking strip.

[0019] In some embodiments, a bottom guard plate is provided at the bottom of the battery pack, a second thermal insulation layer is provided between the bottom guard plate and the battery pack, and the thickness of the second thermal insulation layer is 10 to 100 mm.

[0020] In some embodiments, the area of ​​the outer surface of the battery pack covered by the first thermal insulation layer is S1, the area of ​​the outer surface of the battery pack covered by the second thermal insulation layer is S2, the outer surface area of ​​the battery pack is S, S1+S2=(1%~100%)S.

[0021] In some embodiments, the first insulation layer and the second insulation layer are made of materials with a density less than 1000 kg / m 3 , thermal insulation materials with thermal conductivity less than 10W / mk.

[0022] In some embodiments, the first thermal insulation layer and the second thermal insulation layer are made of foam, foamed rubber, foam board or solid board.

[0023] A vehicle comprises the above-mentioned vehicle body structure.

[0024] Compared with the prior art, the vehicle body structure and vehicle of the embodiment of the present application have the following beneficial effects: by setting a first insulation layer between the installation position of the battery pack and the vehicle body, and the thickness of the first insulation layer is 2 to 100 mm, corresponding to the assembly gap between the battery pack and the vehicle body, the assembly gap between the battery pack and the vehicle body is blocked, the insulation effect of the battery pack is improved, and the temperature loss of the battery pack caused by high-speed cold air flowing through the surface of the battery pack during driving of the vehicle is avoided, thereby ensuring the battery pack's cruising range. At the same time, it also avoids lowering the static insulation temperature of the vehicle and the battery pack, ensuring that the charging time of the battery pack will not increase. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the vehicle body structure of the present application without a bottom guard plate.

[0026] Figure 2 This is an exploded view of the battery pack integrated vehicle body of the present application.

[0027] Figure 3 This is a schematic diagram of the structure of the battery pack of the present application when no convex bump is set on the upper surface and it is completely blocked.

[0028] Figure 4 This is a schematic structural diagram of the first thermal insulation layer that is completely blocked when a convex bump is set on the upper surface of the battery pack of the present application.

[0029] Figure 5 This is a schematic diagram of the structure of partial blocking when a convex bump is set on the upper surface of the battery pack of the present application.

[0030] Figure 6 for Figure 5 Schematic diagram of the structure of the corresponding first insulation layer.

[0031] Figure 7 An exploded view of the bottom guard plate provided for the vehicle body structure of the present application.

[0032] Figure 8 It is a structural schematic diagram of the battery pack fixing bracket.

[0033] Among them: 1-body, 11-installation position, 12-middle channel, 2-battery pack, 21-convex bump, 3-bottom guard plate, 4-first insulation layer, 41-main body, 411-first blocking block, 412-second blocking block, 413-first blocking strip, 414-second blocking strip, 415-third blocking strip, 42-first covering part, 43-second covering part, 5-sill outer beam, 6-battery pack fixing bracket, 61-first fitting surface, 62-second fitting surface, 63-third fitting surface, 7-second insulation layer. DETAILED DESCRIPTION

[0034] The specific implementation methods of the present application are further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but are not intended to limit the scope of the present application.

[0035] In the present application, the two sides described are all based on the orientation description with the length direction of the vehicle body as the length direction and the left and right sides of the vehicle body as the two sides.

[0036] In this application, unless otherwise clearly specified and limited, the terms "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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] like Figure 1-2 As shown, a vehicle of a preferred embodiment of the present application includes a body structure, the body structure includes a body main body 1, a battery pack 2 and a first insulation layer 4, a mounting position 11 is provided at the bottom of the body main body 1, the battery pack 2 is connected to the mounting position 11, the first insulation layer 4 is provided between the battery pack 2 and the mounting position 11, and the thickness of the first insulation layer 4 is 2 to 100 mm, such as 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, 55 mm, 60 mm, 65 mm, 75 mm, 85 mm, 90 mm, 95 mm, or any value or any range between any two adjacent values ​​mentioned above. The first insulation layer 4 is of unequal thickness structure, which needs to be determined according to the gap between the battery pack 2 and the mounting position 11, but the gap is within the range of 2 to 100 mm. That is, by setting the above dimensions, it can be ensured that the first thermal insulation layer 4 can be completely fitted with the surface of the battery pack 2 and the inner wall of the installation position 11 .

[0038] Based on the vehicle body structure and vehicle with the above technical features, a first thermal insulation layer 4 is provided between the battery pack 2 and the mounting position 11 of the vehicle body 1, and the thickness of the first thermal insulation layer 4 is 2 to 100 mm, corresponding to the assembly gap between the battery pack 2 and the vehicle body 1, thereby blocking the assembly gap between the battery pack 2 and the vehicle body 1, improving the thermal insulation effect of the battery pack 2, and avoiding the temperature loss of the battery pack 2 caused by high-speed cold wind flowing through the surface of the battery pack during driving, thereby ensuring the cruising range of the battery pack 2. At the same time, it also avoids reducing the static thermal insulation temperature of the vehicle and the battery pack 2, ensuring that the charging time of the battery pack 2 will not increase.

[0039] In this embodiment, the vehicle body structure also includes a door sill outer beam 5 and a battery pack fixing bracket 6. The door sill outer beam 5 is arranged on both sides of the mounting position 11, and the door sill outer beam 5 and the mounting position 11 form an upwardly protruding mounting groove. The battery pack fixing bracket 6 is connected to the door sill outer beam 5, and is used to fix the battery pack 2 to the mounting position 11, and make the battery pack 2 partially embedded in the mounting groove, thereby realizing the integrated installation of the battery pack 2 and the vehicle body 1.

[0040] The battery pack 2 includes a battery box and a battery cell disposed in the battery box. The battery box includes an upper box and a lower box disposed along the height direction of the vehicle. The battery cell is accommodated in a space defined by the upper box and the lower box. The upper box and the lower box are relatively fixed to each other. The battery pack fixing bracket 6 can be disposed on the upper box or on the lower box. Preferably, the battery pack fixing bracket 6 is disposed on the side wall of the lower box.

[0041] The two sill outer beams 5 are arranged opposite to each other, and the length direction is the same as the length direction of the vehicle. The two battery pack fixing brackets 6 are arranged opposite to each other, and correspond to the two sill outer beams 5 one by one. The two sets of corresponding battery pack fixing brackets 6 and the sill outer beams 5 are connected by a connecting piece.

[0042] In one embodiment, at least one of the sill outer beam 5 and the battery pack fixing bracket 6 is an aluminum extrusion structure. Compared with the traditional steel structure, the weight and tooling cost of the aluminum extrusion structure are greatly reduced. For example, the weight of the aluminum extrusion structure of the same size is 30% lighter than that of the traditional steel structure. Therefore, at least one of the sill outer beam 5 and the battery pack fixing bracket 6 is an aluminum extrusion structure, which can reduce the weight of the electric vehicle body structure, and the lightweight effect of the electric vehicle is obvious, and the tooling cost is greatly saved, and the economic benefit is improved.

[0043] Please see attached Figure 8In this embodiment, the battery pack fixing bracket 6 includes a first fitting surface 61, a second fitting surface 62 and a third fitting surface 63 which are sequentially arranged, the first fitting surface 61 is parallel to and vertically arranged with the third fitting surface 63, and the second fitting surface 62 connects the first fitting surface 61 and the third fitting surface 63.

[0044] The first thermal insulation layer 4 includes a main body 41 extending along the length direction of the vehicle body 1, a first covering portion 42 arranged on both sides of the main body 41, and a second covering portion 43 connecting the main body 41 and the first covering portion 42. The main body 41 covers the upper surface of the battery pack 2, the first covering portion 42 is in contact with the first bonding surface 61, and the second covering portion 43 is in contact with the second bonding surface 62 and the third bonding surface 63.

[0045] The main body 41 is used to seal the upper surface of the battery pack 2 to prevent high-speed cold air from flowing through the upper surface of the battery pack 2, thereby preventing temperature loss on the upper surface of the battery pack 2. The first covering portion 42 and the second covering portion 43 are used to seal the side surfaces of the battery pack 2 to prevent temperature loss on the side surfaces of the battery pack 2, thereby ensuring the endurance of the battery pack 2 and, at the same time, ensuring that the charging time of the battery pack 2 does not increase.

[0046] In some embodiments, the upper surface of the battery pack 2 may be provided with a convex bump 21 or may not be provided with a convex bump 21. For these two cases, the first thermal insulation layer 4 is provided in different ways, specifically:

[0047] 1. When the upper surface of the battery pack 2 is not provided with a convex bump 21. In this case, there are two ways to set the first thermal insulation layer 4, namely: the upper surface of the battery pack 2 at least covers the first thermal insulation layer 4, that is, the upper surface of the battery pack 2 can be partially covered with the first thermal insulation layer 4, or Figure 3 The upper surface of the battery pack 2 shown is completely covered with the first thermal insulation layer 4; or the first thermal insulation layer 4 is arranged around the edge of the upper surface of the battery pack 2, both of which can achieve the effect of sealing and insulating the upper surface of the battery pack 2.

[0048] It should be noted that when the first thermal insulation layer 4 is disposed around the edge of the upper surface of the battery pack 2 , a closed rectangular ring is formed between the main body 41 and the second covering portion 43 to ensure a sealing effect.

[0049] 2. When a convex bump 21 is provided at one end of the upper surface of the battery pack 2, the area on the upper surface of the battery pack 2 where the convex bump 21 is not provided is a blocking area, and the blocking area at least partially covers the first thermal insulation layer 4, that is, the blocking area may partially cover the first thermal insulation layer 4, or Figure 4The blocking area shown in the figure is completely covered with the first thermal insulation layer 4; or the first thermal insulation layer 4 is set at the edge of the blocking area (such as Figure 5 , 6 That is, the area of ​​the convex hull 21 does not need to be blocked, and the blocking conditions and effects of the remaining areas are the same as those without the convex hull 21, and the effects are not described in detail here.

[0050] like Figure 2 As shown, in some embodiments, a middle channel 12 for wiring is provided at the lower end of the vehicle body 1 corresponding to the installation position 11. In the case where the middle channel 12 is provided, the main body 41 is arranged in different ways, specifically:

[0051] The first mode: the main body 41 includes a first blocking block 411 extending along the length direction of the vehicle body 1 and second blocking blocks 412 arranged on both sides of the first blocking block 411, the first blocking block 411 corresponds to the middle channel 12 of the vehicle body 1, and its thickness is greater than the thickness of the second blocking block 412 (such as Figure 4 This is mainly aimed at the situation that the upper surface of the battery pack 2 or the blocking area is completely blocked. When blocking, the first blocking block 411 is embedded in the middle channel 12 to prevent cold air from entering the middle channel 12 and affecting the heat preservation of the battery pack.

[0052] The second method (such as Figure 6 As shown in the figure): the second covering portion 43 is long and extends along the length direction of the vehicle body. The main body 41 includes a first blocking strip 413 and a second blocking strip 414 arranged opposite to each other. The first blocking strip 413 connects one end of the two first covering portions 42 through the second covering portion 43. At this time, the second covering portion 43 can be partially a columnar shape and connected to the first blocking strip 413. Figure 6 shown.

[0053] The second sealing strip 414 is divided into two forms, including one with the convex bump 21 and one without the convex bump 21. When the convex bump 21 is provided, the second sealing strip 414 is connected to the middle of the two first covering parts 42 through the second covering part 43, and one side of the second sealing strip 414 abuts against the convex bump 21; when the convex bump 21 is not provided, the second sealing strip 414 connects the other ends of the two first covering parts 43 through the second covering part. In both cases, a closed rectangle is formed between the first sealing strip 413, the second sealing strip 414 and the two second covering parts 43 to ensure the sealing effect. In both cases, the second covering part 43 can be partially a columnar shape, connected to the second sealing strip 414, such as Figure 6 shown.

[0054] In addition, a third blocking strip 415 corresponding to the central channel 12 of the vehicle body 1 is provided in the middle of the first blocking strip 413 and the second blocking strip 414. The two third blocking strips 415 are respectively embedded at both ends of the central channel 12 to prevent high-speed cold air from entering the central channel 12 and affecting the insulation of the battery pack.

[0055] Please see attached Figure 7 In some embodiments, the vehicle body structure further includes a bottom guard plate 3 disposed at the bottom of the battery pack 2, and the bottom guard plate 3 may be directly connected to the bottom of the battery pack 2, or may be connected to the vehicle body 1. A second thermal insulation layer 7 is disposed between the bottom guard plate 3 and the battery pack 2, and the thickness of the second thermal insulation layer 7 is 10 to 100 mm. Since the bottom guard plate 7 is in direct contact with the outside world, the thickness of the second thermal insulation layer 7 may be set to be greater than the average thickness of the first thermal insulation layer 4, such as 20 mm, 30 mm, 40 mm, 50 mm, 60 mm, 70 mm, 80 mm, 90 mm, or any value or any range between any two adjacent values ​​mentioned above.

[0056] Specifically, the thickness of the first thermal insulation layer 4 and the second thermal insulation layer 7 can be determined through wind speed testing. After sealing, the wind speed of any outer surface area of ​​the battery pack 2 is required to be greater than or equal to 0 and less than or equal to 15 m / s.

[0057] At the same time, in addition to considering the thickness of the thermal insulation layer, it is also necessary to consider the area of ​​the thermal insulation layer covering the battery pack 2. Specifically, if the area of ​​the first thermal insulation layer 4 covering the outer surface of the battery pack 2 is S1, the area of ​​the second thermal insulation layer 7 covering the outer surface of the battery pack 2 is S2, and the outer surface area of ​​the battery pack 2 is S, then S1+S2=(1%~100%)S is satisfied, such as (10%~100%)S, (20%~100%)S, (30%~100%)S, (40%~100%)S, (50%~100%)S, (60%~100%)S, (70%~100%)S, (80%~100%)S, etc. According to the above-mentioned setting area, combined with the setting mode of the above-mentioned first thermal insulation layer 4 and the second thermal insulation layer 7, it can be ensured that the temperature loss of the battery pack 2 caused by high-speed cold air flowing over the surface of the battery pack 2 during the driving of the vehicle can be avoided, thereby ensuring the cruising range of the battery pack 2. At the same time, it also avoids reducing the static insulation temperature of the vehicle and the battery pack 2, ensuring that the charging time of the battery pack will not be increased.

[0058] In this embodiment, the outer surface of the battery pack 2 includes the upper surface, lower surface, left side, right side, front side and rear side of the battery pack 2. The thermal insulation layer can be directly provided on the battery pack 2, or it can be sealed on the vehicle body 1 first, and the gap can be filled after the battery pack 2 is installed on the vehicle body 1; or the gap can be sealed after the battery pack 2 is installed on the vehicle body 1.

[0059] In this embodiment, the first thermal insulation layer 4 and the second thermal insulation layer 7 can be made of the same material or different materials, but both need to be made of materials with a density less than 1000 kg / m 3 , a material with a thermal conductivity of less than 10W / mk. For example, foam, foamed rubber, foam board, solid board, etc. can be used. In addition, the thermal insulation layer 4 can also be made of other materials with low thermal conductivity, which is not specifically limited in the present disclosure.

[0060] In this embodiment, the second thermal insulation layer 7 can be provided with a plurality of air chambers, and the plurality of air chambers are separated from each other, that is, the air chambers are surrounded by the completed hole wall, and the plurality of air chambers are not connected to each other. In other words, the thermal insulation layer is made of a closed-cell material, so that the thermal insulation layer can have a higher mechanical strength, and has better thermal insulation and impact buffering properties, thereby isolating the heat exchange between the bottom guard plate 3 and the external environment to a greater extent, thereby achieving a better thermal insulation effect and heat insulation effect, and can also provide better protection for the bottom guard plate 3.

[0061] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present application. These improvements and substitutions should also be regarded as the scope of protection of the present application.

Claims

1. A vehicle body structure, characterized in that: include: A vehicle body, wherein a mounting position is provided at the bottom of the vehicle body; a battery pack, the battery pack being connected to the mounting position; as well as The first thermal insulation layer is disposed between the battery pack and the mounting position, and the thickness of the first thermal insulation layer is 2 to 100 mm.

2. The vehicle body structure according to claim 1, characterized in that: When the upper surface of the battery pack is not provided with a convex bump, the upper surface of the battery pack is at least partially covered with the first thermal insulation layer, or the first thermal insulation layer is provided around the edge of the upper surface of the battery pack; When a bulge is provided at one end of the upper surface of the battery pack, the area on the upper surface of the battery pack where the bulge is not provided is a blocking area, and the blocking area at least partially covers the first thermal insulation layer, or the first thermal insulation layer is provided at the edge of the blocking area.

3. The vehicle body structure according to claim 1, characterized in that: It includes a door sill outer beam and a battery pack fixing bracket, the door sill outer beam is arranged on both sides of the installation position, and the door sill outer beam and the installation position form an upwardly protruding installation groove, and the battery pack fixing bracket is connected to the door sill outer beam, and is used to fix the battery pack to the installation position, and make the battery pack partially embedded in the installation groove.

4. The vehicle body structure according to claim 3, characterized in that: The battery pack fixing bracket includes a first bonding surface, a second bonding surface and a third bonding surface which are sequentially arranged, the first bonding surface is parallel to the third bonding surface and is vertically arranged, and the second bonding surface connects the first bonding surface and the third bonding surface. The first thermal insulation layer includes a main body, a first covering portion arranged on both sides of the main body, and a second covering portion connecting the main body and the first covering portion, the main body covers the upper surface of the battery pack, the first covering portion is in contact with the first bonding surface, and the second covering portion is in contact with the second bonding surface and the third bonding surface.

5. The vehicle body structure according to claim 4, characterized in that: The main body includes a first blocking block extending along the length direction of the vehicle body and second blocking blocks arranged on both sides of the first blocking block. The first blocking block corresponds to the middle channel of the vehicle body and its thickness is greater than that of the second blocking block.

6. The vehicle body structure according to claim 4, characterized in that: The first covering portion is in the shape of an elongated strip and extends along the length direction of the vehicle body. The main body portion includes a first blocking strip and a second blocking strip that are arranged opposite to each other. The first blocking strip connects one end of the two first covering portions through the second covering portion. The second blocking strip is connected to the other ends of the two first covering parts through the second covering part, or the second blocking strip is connected to the middle parts of the two first covering parts through the second covering part, and one side of the second blocking strip is in contact with the convex part of the battery pack; A third blocking strip corresponding to the middle channel of the vehicle body is provided in the middle of the first blocking strip and the second blocking strip.

7. The vehicle body structure according to any one of claims 1 to 6, characterized in that: It comprises a bottom guard plate arranged at the bottom of the battery pack, a second thermal insulation layer is arranged between the bottom guard plate and the battery pack, and the thickness of the second thermal insulation layer is 10 to 100 mm.

8. The vehicle body structure according to claim 7, characterized in that: The area of ​​the outer surface of the battery pack covered by the first thermal insulation layer is S1, the area of ​​the outer surface of the battery pack covered by the second thermal insulation layer is S2, the outer surface area of ​​the battery pack is S, S1+S2=(1%~100%)S.

9. The vehicle body structure according to claim 7, characterized in that: The first insulation layer and the second insulation layer are made of materials with a density less than 1000 kg / m 3 , thermal insulation materials with thermal conductivity less than 10W / mk.

10. The vehicle body structure according to claim 9, characterized in that: The first thermal insulation layer and the second thermal insulation layer are made of foam, foamed rubber, foam board or solid board.

11. A vehicle, characterized in that: Comprising a vehicle body structure as described in any one of claims 1-10.

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