A heat insulation device and vehicle for adapting to various vehicle models

Abstract

The present invention discloses a heat insulation device and a vehicle for adapting to a variety of vehicle models, and relates to the technical field of vehicle parts. The device includes a silencer heat insulation front section plate, a battery heat insulation front section plate, a battery heat insulation middle section plate and a battery heat insulation rear section plate, and the silencer heat insulation front section plate is concave to form a first heat insulation cavity for accommodating an exhaust pipe assembly. The battery heat insulation front section plate is located on the first side of the power battery, and the battery heat insulation front section plate is fixed to the silencer heat insulation front section plate, and the battery heat insulation front section plate is concave to form a second heat insulation cavity for accommodating an exhaust pipe assembly. The battery heat insulation middle section plate is fixed to the battery heat insulation front section plate, and the exhaust pipe assembly is fixed to the battery heat insulation middle section plate, so as to form a heat separation between the exhaust pipe assembly and the power battery through the battery heat insulation front section plate and the battery heat insulation middle section plate. The battery heat insulation rear section plate is located on the battery heat insulation middle section plate. Therefore, multiple vehicle models can be adapted through multiple modular heat insulation plates, which shortens the design cycle and reduces the development cost.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle parts, and in particular to a heat insulation device and a vehicle adapted to various vehicle models. Background Art

[0002] The main function of the vehicle's heat shield is to isolate the heat source from the surrounding structure to avoid the risk of heat damage to surrounding wiring harnesses, pipes, batteries and other items caused by high temperature. With the development of new energy vehicles, more and more models are modified based on conventional vehicles to develop plug-in hybrid electric vehicles (PHEV). Since the battery is arranged under the floor of the PHEV model, due to space constraints, the direction of the exhaust pipe of most PHEV models is different from that of fuel vehicles.

[0003] However, in response to different user needs, PHEV models are often developed with different battery capacity configurations, resulting in differences in battery size. This means that different models often need to have individually designed heat shields, which increases the design cycle and the development cost of the heat shield. Summary of the invention

[0004] In view of the above problems, the present invention is proposed to provide a heat insulation device and a vehicle adapted to various vehicle models that overcome the above problems or at least partially solve the above problems.

[0005] According to a first aspect of the present invention, the present invention provides a heat insulation device for adapting to various vehicle models, the device comprising:

[0006] A sound-absorbing and heat-insulating front section plate, wherein the sound-absorbing and heat-insulating front section plate is concave to form a first heat-insulating cavity for accommodating the exhaust pipe assembly, and the first heat-insulating cavity is arranged to penetrate along the length direction of the sound-absorbing and heat-insulating front section plate;

[0007] A battery heat-insulating front section plate, the battery heat-insulating front section plate is located at a first side of the power battery, and the end of the battery heat-insulating front section plate away from the power battery is fixed to the muffler heat-insulating front section plate, wherein the battery heat-insulating front section plate is concave to form a second heat-insulating cavity for accommodating the exhaust pipe assembly, and the second heat-insulating cavity is connected to the first heat-insulating cavity;

[0008] A battery heat-insulating middle section plate, the battery heat-insulating middle section plate is fixed to the battery heat-insulating front section plate and is located at an adjacent side of the first side, wherein the second heat-insulating cavity is extended from the first heat-insulating cavity toward the battery heat-insulating middle section plate, and a portion of the exhaust pipe assembly is fixed to the battery heat-insulating middle section plate to form heat separation between the exhaust pipe assembly and the power battery through the battery heat-insulating front section plate and the battery heat-insulating middle section plate;

[0009] A battery insulation rear section plate, wherein the battery insulation rear section plate is located on the end of the battery insulation middle section plate away from the battery insulation front section plate and extends along the length direction of the power battery.

[0010] Optionally, the battery insulation middle section plate includes:

[0011] A first heat insulating portion, wherein the first heat insulating portion is located at an edge of a top surface of the power battery;

[0012] a second heat insulating portion, the second heat insulating portion being connected to the first heat insulating portion and in contact with a side edge of the power battery;

[0013] A third heat insulating portion, wherein the third heat insulating portion is located on an end portion of the second heat insulating portion away from the first heat insulating portion, wherein the third heat insulating portion extends in a direction away from the second heat insulating portion, and the exhaust pipe assembly is fixed on the third heat insulating portion.

[0014] Optionally, the battery insulation middle section plate further includes a middle section extension portion, and the middle section extension portion extends from an adjacent side of the first side edge toward the first side edge until it contacts the battery insulation front section plate.

[0015] Optionally, the battery insulation front plate completely covers the first side.

[0016] Optionally, the battery heat-insulating rear plate extends to a side opposite to the first side of the power battery.

[0017] Optionally, detachable connections are adopted between the noise-absorbing and heat-insulating front section plate and the battery heat-insulating front section plate, between the battery heat-insulating front section plate and the battery heat-insulating middle section plate, and between the battery heat-insulating middle section plate and the battery heat-insulating rear section plate.

[0018] Optionally, the thickness of the battery heat-insulating rear section plate narrows from close to the battery heat-insulating middle section plate to away from the battery heat-insulating middle section plate.

[0019] Optionally, at least three mounting holes are provided at the connection between the sound-absorbing and heat-insulating front section plate and the battery heat-insulating front section plate, and the central axis of the mounting holes is vertically arranged.

[0020] Optionally, the battery heat insulation front section plate and the battery heat insulation middle section plate overlap each other at their connection points and are mounted on the power battery by the same first fastener; and / or,

[0021] The battery heat-insulating middle section plate and the connection part of the battery heat-insulating middle section plate overlap each other and are installed on the power battery through the same second fastener.

[0022] According to a second aspect of the present invention, the present invention provides a vehicle, the vehicle comprising any one of the above-mentioned heat insulation devices for adapting to various vehicle models.

[0023] Compared with the prior art, the present invention includes a sound-absorbing and heat-insulating front section plate, a battery heat-insulating front section plate, a battery heat-insulating middle section plate and a battery heat-insulating rear section plate, wherein the sound-absorbing and heat-insulating front section plate is concave to form a first heat-insulating cavity for accommodating the exhaust pipe assembly, and the first heat-insulating cavity is arranged to penetrate along the length direction of the sound-absorbing and heat-insulating front section plate. The battery heat-insulating front section plate is located at the first side of the power battery, and the end of the battery heat-insulating front section plate away from the power battery is fixed to the sound-absorbing and heat-insulating front section plate, wherein the battery heat-insulating front section plate is concave to form a second heat-insulating cavity for accommodating the exhaust pipe assembly, and the second heat-insulating cavity is connected to the first heat-insulating cavity. The battery insulation middle section plate is fixed to the battery insulation front section plate and is located at the adjacent side of the first side, wherein the second insulation cavity is extended from the first insulation cavity toward the battery insulation middle section plate, and a portion of the exhaust pipe assembly is fixed to the battery insulation middle section plate to form heat separation between the exhaust pipe assembly and the power battery through the battery insulation front section plate and the battery insulation middle section plate. The battery insulation rear section plate is located on the end of the battery insulation middle section plate away from the battery insulation front section plate, and extends along the length direction of the power battery. In this way, multiple modular insulation panels can be adapted to multiple vehicle models, shortening the design cycle and reducing development costs.

[0024] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limitations of the present invention. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings.

[0026] In the attached picture:

[0027] Figure 1 is a schematic structural diagram of a heat insulation device for adapting to various vehicle models provided by an embodiment of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure explosion of a heat insulation device for adapting to various vehicle models provided by an embodiment of the present invention;

[0029] Figure 3This is a schematic diagram of a first usage scenario of a heat insulation device for adapting to various vehicle models provided by an embodiment of the present invention;

[0030] Figure 4 is a schematic diagram of a second usage scenario of a heat insulation device for adapting to various vehicle models provided by an embodiment of the present invention;

[0031] Figure 5 is a schematic diagram of a third usage scenario of a heat insulation device for adapting to various vehicle models provided by an embodiment of the present invention;

[0032] Figure 6 It is a bottom-up structural schematic diagram of a heat insulation device for adapting to various vehicle models provided by an embodiment of the present invention;

[0033] Figure numerals: 1. Silencer and heat-insulating front section plate; 11. First heat-insulating cavity; 2. Battery heat-insulating front section plate; 21. Second heat-insulating cavity; 3. Battery heat-insulating middle section plate; 31. First heat-insulating portion; 32. Second heat-insulating portion; 33. Third heat-insulating portion; 34. Middle section extension portion; 4. Battery heat-insulating rear section plate; 5. Mounting hole; 6. Power battery; 61. First side edge; 7. Exhaust pipe assembly. DETAILED DESCRIPTION

[0034] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to enable the scope of the present invention to be fully communicated to those skilled in the art.

[0035] Reference Figure 1-6 The embodiment of the present invention provides a heat insulation device for adapting to various vehicle models, the device may include a sound-absorbing heat insulation front section plate 1, a battery heat insulation front section plate 2, a battery heat insulation middle section plate 3 and a battery heat insulation rear section plate 4, wherein:

[0036] The front section plate 1 is concave to form a first heat insulation cavity 11 for accommodating the exhaust pipe assembly 7. The first heat insulation cavity 11 is arranged along the length direction of the front section plate 1. The length direction of the front section plate 1 is consistent with the length direction of the vehicle body. The upper part of the front section plate 1 is connected to the bottom plate of the vehicle. In one example, referring to Figure 1 As shown, the cross-sectional shape of the sound-absorbing and heat-insulating front section plate 1 can be U-shaped. Correspondingly, the exhaust pipe assembly 7 is placed in the first heat-insulating cavity 11, which can increase the distance between the exhaust pipe assembly 7 and the bottom plate, realize heat separation, and thus avoid the risk of heat damage to the vehicle bottom plate.

[0037] The battery heat-insulating front section plate 2 is located at the first side 61 of the power battery 6, and the end of the battery heat-insulating front section plate 2 away from the power battery 6 is fixed to the sound-absorbing heat-insulating front section plate 1. The first side 61 can also be regarded as the front side of the power battery 6. The battery heat-insulating front section plate 2 can be in contact with the first side 61. For example, a battery tray is provided at the bottom of the power battery 6, and the battery heat-insulating front section plate 2 can be vertically fixed on the battery tray.

[0038] The battery insulation front section plate 2 is concave to form a second insulation cavity 21 for accommodating the exhaust pipe assembly 7, and the second insulation cavity 21 is connected to the first insulation cavity 11. The battery insulation middle section plate 3 is fixed to the battery insulation front section plate 2 and is located at the adjacent side of the first side edge 61. When a power battery 6 is arranged in the vehicle, in order to avoid the exhaust pipe assembly 7 passing over the power battery 6 and causing a risk of heat damage to the power battery 6. The second insulation cavity 21 is extended from the first insulation cavity 11 toward the battery insulation middle section plate 3, and a part of the exhaust pipe assembly 7 is fixed on the battery insulation middle section plate 3 to form a heat separation between the exhaust pipe assembly 7 and the power battery 6 through the battery insulation front section plate 2 and the battery insulation middle section plate 3. The battery insulation rear section plate 4 is located at the end of the battery insulation middle section plate 3 away from the battery insulation front section plate 2, and extends along the length direction of the power battery 6. Therefore, the sound-absorbing and heat-insulating front section plate 1, the battery heat-insulating front section plate 2, the battery heat-insulating middle section plate 3 and the battery insulation section rear end plate can be arranged on at least two sides of the power battery 6, so that the exhaust pipe assembly 7 can bypass the power battery 6 in a Z shape, forming heat separation between the exhaust pipe assembly 7 and the power battery 6, and ensuring the operating stability of the power battery 6.

[0039] In one example, refer to Figure 3 As shown, when the vehicle type is a fuel vehicle, that is, there is no power battery 6 in the vehicle body, thus, the exhaust pipe assembly 7 can be directly arranged in a straight line along the first heat insulation cavity 11 (it can also be understood as along the length direction of the noise-absorbing and heat-insulating front section plate 1). For example, the noise-absorbing and heat-insulating front section plate 1 can be installed under the vehicle floor by multiple mounting bolts. In other words, when the vehicle type is a fuel vehicle, only one noise-absorbing and heat-insulating front section plate 1 can be installed to separate the exhaust pipe assembly 7 and the floor.

[0040] In another example, refer to Figure 4As shown, when the vehicle model is a PHEV vehicle model with a small power battery 6, since the power battery 6 is sensitive to temperature, the exhaust pipe assembly 7 is distributed in a Z-shape. For example, the silencing and heat-insulating front section plate 1, the battery heat-insulating front section plate 2, and the battery heat-insulating middle section plate 3 can be assembled to separate the power battery 6 and the exhaust pipe assembly 7. The provision of the first heat-insulating cavity 11 and the second heat-insulating cavity 21 can increase the distance between the exhaust pipe assembly 7 and the bottom plate, realize heat separation, thereby avoiding the risk of heat damage to the vehicle bottom plate.

[0041] In another example, referring to Figure 5 As shown, when the vehicle model is a PHEV vehicle model with a large power battery 6, considering that the difference between the large power battery 6 configuration and the small power battery 6 configuration is mainly the size difference of the power battery 6 (mainly the battery length of the power battery 6 along the length direction of the vehicle body), the length of the large power battery 6 is greater than that of the small power battery 6. Therefore, the power battery 6 and the exhaust pipe assembly 7 can be separated by the assembly method of the noise-absorbing and heat-insulating front section plate 1, the battery heat-insulating front section plate 2, the battery heat-insulating middle section plate 3 and the battery heat-insulating rear section plate 4.

[0042] In summary, the heat insulation device for adapting to various vehicle models can be adapted to multiple vehicle models through multiple modular heat insulation panels, thereby shortening the design cycle and reducing development costs.

[0043] In an optional embodiment of the invention, referring to Figure 2 As shown, the battery insulation middle section plate 3 includes a first insulation part 31, a second insulation part 32 and a third insulation part 33. The first insulation part 31 is located at the top edge of the power battery 6 (which can also be understood as the top of the battery tray). The second insulation part 32 is connected to the first insulation part 31 and contacts the side of the power battery 6. The third insulation part 33 is located at the end of the second insulation part 32 away from the first insulation part 31, wherein the third insulation part 33 extends in a direction away from the second insulation part 32, and the exhaust pipe assembly 7 is fixed on the third insulation part 33. For example, the first insulation part 31, the second insulation part 32 and the third insulation part 33 can be an integrated structure, and the cross-sectional shape formed by the three insulation parts can be Z-shaped. Therefore, the exhaust pipe assembly 7 is fixed on the third insulation part 33, which can increase the distance between the exhaust pipe assembly 7 and the bottom plate, achieve heat separation, and thus avoid the risk of heat damage to the vehicle bottom plate.

[0044] In an optional embodiment of the invention, the battery heat-insulating middle section plate 3 may further include a middle section extension portion 34, and the middle section extension portion 34 is extended from the adjacent side of the first side edge 61 to the first side edge 61 until it contacts the battery heat-insulating front section plate 2. Thus, the notch-shaped area between the two side edges of the power battery 6 can be separated from the curved exhaust pipe assembly 7 by the middle section extension portion 34, thereby increasing the heat-insulating performance of the heat-insulating device adapted to various vehicle models.

[0045] In an optional embodiment of the invention, referring to Figure 4 and Figure 5 As shown, the battery insulation front section plate 2 completely covers the first side 61, that is, the battery insulation front section plate 2 covers the entire front interface area of ​​the power battery 6, referring to Figure 6 As shown, the battery harness, battery cooling pipeline, and the interface of the power battery 6 can be separated from the vehicle's floor environment, which can reduce the development of a chassis guard plate.

[0046] In an optional embodiment of the invention, the battery heat-insulating rear section plate 4 extends to the side opposite to the first side 61 of the power battery 6. In other words, the battery heat-insulating rear section plate 4 is bent and arranged on both sides of the power battery 6, thereby avoiding the risk of heat damage to the apex of the power battery 6 by the exhaust pipe assembly 7. The heat-insulating performance of the heat-insulating device for adapting to various vehicle models is further optimized.

[0047] In an optional embodiment of the invention, referring to Figure 1 As shown, detachable connections are adopted between the front section noise insulation plate 1 and the front section battery insulation plate 2, between the front section battery insulation plate 2 and the middle section battery insulation plate 3, and between the middle section battery insulation plate 3 and the rear section battery insulation plate 4. On the one hand, the detachable connection can facilitate the disassembly and assembly between the front section noise insulation plate 1, the front section battery insulation plate 2, the middle section battery insulation plate 3, and the rear section battery insulation plate 4. On the other hand, when developing vehicles of different models, when converting the developed models, the insulation device used to adapt to various models of the previously developed models can be disassembled and assembled, and used as the insulation device used to adapt to various models of the later developed models, thereby further reducing the development cost of the vehicle and the design cycle of the insulation device used to adapt to various models. For example, the detachable connection can be in the form of nuts and bolts.

[0048] In an optional embodiment of the invention, referring to Figure 1 and Figure 2As shown, since the heat of the exhaust pipe assembly 7 decreases as it goes further back, and the arrangement area of ​​the exhaust pipe assembly 7 is limited on the battery heat insulation middle section plate 3, there is a certain heat dissipation gap between the exhaust pipe assembly 7 and the power battery 6, and thus the thickness of the battery heat insulation rear section plate 4 becomes narrower from close to the battery heat insulation middle section plate 3 to away from the battery heat insulation middle section plate 3. While ensuring the heat insulation performance of the battery heat insulation rear section plate 4, the production materials of the battery heat insulation rear section plate 4 can also be reduced. The thickness narrowing is not limited to gradually narrowing, and it can also be understood that only the thickness of the end of the battery heat insulation rear section plate 4 close to the battery heat insulation middle section plate 3 is greater than the thickness of the other end of the battery heat insulation rear section plate, and no excessive restrictions are made here.

[0049] In an optional embodiment of the invention, referring to Figure 1 and Figure 2 As shown, at least three mounting holes 5 are provided at the connection between the noise-absorbing and heat-insulating front section plate 1 and the battery heat-insulating front section plate 2, and the central axis of the mounting hole 5 is vertically arranged. That is to say, the mounting hole 5 vertically penetrates the noise-absorbing and heat-insulating front section plate 1 and the battery heat-insulating front section plate 2. There are at least three mounting points on the contact surface between the noise-absorbing and heat-insulating front section plate 1 and the battery heat-insulating front section plate 2, thereby reducing abnormal noises caused by collisions between the two during driving. And the vertical assembly method can facilitate the assembly between the noise-absorbing and heat-insulating front section plate 1 and the battery heat-insulating front section plate 2, which can help improve assembly efficiency. The vertical assembly method can also be applied to the assembly method of other components, and is not limited too much here.

[0050] In an optional embodiment of the invention, the connection between the battery insulation front section plate 2 and the battery insulation middle section plate 3 overlaps with each other, and is installed on the power battery 6 through the same first fastener. In another example, the connection between the battery insulation middle section plate 3 and the battery insulation middle section plate 3 overlaps with each other, and is installed on the power battery 6 through the same second fastener. In another example, the connection between the battery insulation front section plate 2 and the battery insulation middle section plate 3 overlaps with each other, and is installed on the power battery 6 through the same first fastener, and the connection between the battery insulation middle section plate 3 and the battery insulation middle section plate 3 overlaps with each other, and is installed on the power battery 6 through the same second fastener. Among them, the method of overlapping each other and fixing with the same fastener can improve the assembly efficiency, and can also improve the connection firmness between the battery insulation front section plate 2 and the battery insulation middle section plate 3 (increasing the contact area between the two components), or the connection firmness between the battery insulation middle section plate 3 and the battery insulation middle section plate 3.

[0051] In an optional embodiment of the invention, the exhaust pipe assembly 7 can be fixed in the heat insulation device for adapting to various vehicle models by means of a clamp or other structure. For example, when the exhaust pipe assembly 7 is in the first heat insulation cavity 11 and the second heat insulation cavity 21, the distance between the exhaust pipe assembly 7 and the cavity wall of the first heat insulation cavity 11, or the distance between the exhaust pipe assembly 7 and the cavity wall of the second heat insulation cavity 21, is respectively greater than or equal to a distance threshold. For example, the distance threshold can be 25mm, 28mm, and 30mm. Those skilled in the art can make a selection based on actual conditions, so as to avoid abnormal noise caused by collision between the exhaust pipe assembly 7 and the heat insulation device for adapting to various vehicle models when the vehicle is driving.

[0052] In summary, the embodiment of the present invention discloses a heat insulation device and a vehicle adapted to various vehicle models, wherein the device may include a sound-absorbing heat-insulating front section plate 1, a battery heat-insulating front section plate 2, a battery heat-insulating middle section plate 3, and a battery heat-insulating rear section plate 4. The sound-absorbing heat-insulating front section plate 1 is concave to form a first heat-insulating cavity 11 for accommodating the exhaust pipe assembly 7, and the first heat-insulating cavity 11 is arranged to penetrate along the length direction of the sound-absorbing heat-insulating front section plate 1. The battery heat-insulating front section plate 2 is located at the first side 61 of the power battery 6, and the end of the battery heat-insulating front section plate 2 away from the power battery 6 is fixed to the sound-absorbing heat-insulating front section plate 1, wherein the battery heat-insulating front section plate 2 is concave to form a second heat-insulating cavity 21 for accommodating the exhaust pipe assembly 7, and the second heat-insulating cavity 21 is connected to the first heat-insulating cavity 11. The battery heat insulation middle section plate 3 is fixed to the battery heat insulation front section plate 2 and is located at the adjacent side of the first side edge 61, wherein the second heat insulation cavity 21 is extended from the first heat insulation cavity 11 toward the battery heat insulation middle section plate 3, and a part of the exhaust pipe assembly 7 is fixed to the battery heat insulation middle section plate 3, so as to form heat separation between the exhaust pipe assembly 7 and the power battery 6 through the battery heat insulation front section plate 2 and the battery heat insulation middle section plate 3. The battery heat insulation rear section plate 4 is located on the end of the battery heat insulation middle section plate 3 away from the battery heat insulation front section plate 2, and extends along the length direction of the power battery 6. Therefore, multiple modular heat insulation panels can be adapted to multiple vehicle models, shortening the design cycle and reducing development costs.

[0053] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0054] It is easy for a person skilled in the art to think that any combination of the above embodiments is feasible, so any combination of the above embodiments is an implementation scheme of the present invention. However, due to space limitations, this specification will not describe them in detail here.

[0055] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0056] Similarly, it should be understood that in order to streamline the present invention and aid in understanding one or more of the various inventive aspects, in the above description of exemplary embodiments of the present invention, various features of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof.

[0057] In addition, those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

Claims

1. A heat insulation device for adapting to various vehicle models, characterized in that: The device comprises: A sound-absorbing and heat-insulating front section plate (1), wherein the sound-absorbing and heat-insulating front section plate (1) is concave to form a first heat-insulating cavity (11) for accommodating the exhaust pipe assembly (7), and the first heat-insulating cavity (11) is arranged to penetrate along the length direction of the sound-absorbing and heat-insulating front section plate (1); A battery heat-insulating front section plate (2), the battery heat-insulating front section plate (2) being located on a first side edge (61) of a power battery (6), and an end of the battery heat-insulating front section plate (2) away from the power battery (6) being detachably connected to the muffler heat-insulating front section plate (1), wherein the battery heat-insulating front section plate (2) is concave to form a second heat-insulating cavity (21) for accommodating the exhaust pipe assembly (7), and the second heat-insulating cavity (21) is in communication with the first heat-insulating cavity (11); A battery heat-insulating middle section plate (3), the battery heat-insulating middle section plate (3) is detachably connected to the battery heat-insulating front section plate (2), and is located at an adjacent side of the first side edge (61), wherein the second heat-insulating cavity (21) is extended from the first heat-insulating cavity (11) toward the battery heat-insulating middle section plate (3), and a portion of the exhaust pipe assembly (7) is fixed to the battery heat-insulating middle section plate (3) to form heat separation between the exhaust pipe assembly (7) and the power battery (6) through the battery heat-insulating front section plate (2) and the battery heat-insulating middle section plate (3); A battery heat-insulating rear section plate (4), the battery heat-insulating rear section plate (4) being located on the end of the battery heat-insulating middle section plate (3) away from the battery heat-insulating front section plate (2) and extending along the length direction of the power battery (6), the battery heat-insulating rear section plate (4) and the battery heat-insulating middle section plate (3) being detachably connected, and the thickness of the battery heat-insulating rear section plate (4) becoming narrower from the direction close to the battery heat-insulating middle section plate (3) to the direction away from the battery heat-insulating middle section plate (3); When the vehicle type is a fuel vehicle, the heat insulation device is only equipped with a sound-absorbing and heat-insulating front section plate (1); When the vehicle model is equipped with a small power battery, the heat insulation device adopts an assembly method of the noise-absorbing and heat-insulating front section plate (1), the battery heat-insulating front section plate (2) and the battery heat-insulating middle section plate (3); When the vehicle model is configured with a large power battery, the heat insulation device adopts an assembly method of the noise-absorbing and heat-insulating front section plate (1), the battery heat-insulating front section plate (2), the battery heat-insulating middle section plate (3) and the battery heat-insulating rear section plate (4), wherein the length of the large power battery is greater than that of the small power battery.

2. The heat insulation device for adapting to various vehicle models according to claim 1, characterized in that: The battery heat-insulating middle section plate (3) comprises: A first heat insulating portion (31), the first heat insulating portion (31) being located at an edge of a top surface of the power battery (6); A second heat insulating portion (32), the second heat insulating portion (32) being connected to the first heat insulating portion (31) and in contact with a side edge of the power battery (6); A third heat insulating portion (33), the third heat insulating portion (33) being located at an end of the second heat insulating portion (32) away from the first heat insulating portion (31), wherein the third heat insulating portion (33) is extended in a direction away from the second heat insulating portion (32), and the exhaust pipe assembly (7) is fixed on the third heat insulating portion (33).

3. The heat insulation device for adapting to various vehicle models according to claim 2, characterized in that: The battery insulation middle section plate (3) further comprises a middle section extension portion (34), wherein the middle section extension portion (34) extends from an adjacent side of the first side edge (61) toward the first side edge (61) until it contacts the battery insulation front section plate (2).

4. The heat insulation device for adapting to various vehicle models according to claim 1, characterized in that: The battery heat-insulating front plate (2) completely covers the first side edge (61).

5. The heat insulation device for adapting to various vehicle models according to claim 1, characterized in that: The battery heat-insulating rear section plate (4) extends to a side opposite to the first side (61) of the power battery (6).

6. The heat insulation device for adapting to various vehicle models according to claim 1, characterized in that: At least three mounting holes (5) are provided at the connection between the noise-absorbing and heat-insulating front section plate (1) and the battery heat-insulating front section plate (2), and the central axis of the mounting hole (5) is vertically arranged.

7. The heat insulation device for adapting to various vehicle models according to claim 1, characterized in that: The connection parts of the battery heat insulation front section plate (2) and the battery heat insulation middle section plate (3) overlap each other and are mounted on the power battery (6) via the same first fastener.

8. A vehicle, characterized in that: The vehicle includes a heat insulation device for adapting to various vehicle models as described in any one of claims 1-7.

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