Heat insulation partition plate for automobile front-section exhaust pipe

Abstract

The utility model relates to the technical field of automobiles, in particular to a heat insulation partition plate for an automobile front section exhaust pipe, which comprises an aluminum silicate fiber layer, two sides of the aluminum silicate fiber layer are fixedly connected with connecting blocks, opposite sides of the connecting blocks are jointly connected with a glass fiber layer, and a ventilation layer is arranged between the glass fiber layer and the aluminum silicate fiber layer. The aluminum silicate fiber layer is connected with the connecting blocks through the aluminum silicate fiber layer, the glass fiber layer is connected with the connecting blocks through the connecting blocks, the ventilation layer for air circulation is formed between the aluminum silicate fiber layer and the glass fiber layer, and the aluminum silicate fiber layer and the glass fiber layer can be cooled through the ventilation layer; the aerogel supporting plate reinforces the ventilation layer, the aluminum silicate fibers have good heat insulation performance, aerogel is a material with high heat insulation performance, and good high temperature resistance and corrosion resistance of the glass fibers are matched, so that the heat insulation partition plate achieves the heat insulation effect, and the purpose of improving the comfort level of a vehicle is achieved.

Description

Technical Field

[0001] The utility model relates to a heat-insulating baffle for an exhaust pipe, in particular to a heat-insulating baffle for a front exhaust pipe of an automobile, belonging to the technical field of automobiles. Background Art

[0002] The automobile exhaust pipe refers to a part of the automobile engine exhaust system, which is used to guide the exhaust gas generated by the engine combustion out of the vehicle. Generally speaking, under normal driving conditions, the temperature of the front exhaust pipe of the automobile is between 400℃ and 600℃. The exhaust pipe will generate high temperature when working. If there is no corresponding heat insulation, the heat will be directly transferred to the surrounding components and the interior of the vehicle, which may cause aging, deformation or damage to the components, and may even cause burns to the passengers. It will cause the temperature in the vehicle to rise, especially in summer or when driving for a long time, which will affect the comfort of the passengers. Therefore, it is necessary to install a heat insulation partition for heat insulation. However, the traditional heat insulation partition adopts an integrated design, and heat will always be transferred through the heat insulation partition, which cannot completely isolate the high temperature of the exhaust pipe. There will still be a certain degree of heat transfer to the surrounding area.

[0003] Therefore, it is urgent to improve a heat insulation baffle for an automobile front exhaust pipe to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to provide a heat-insulating baffle for the front exhaust pipe of an automobile. The aluminum silicate fiber layer is fixedly connected to the connecting blocks on both sides, and the glass fiber layer is further connected through the connecting blocks, so that a ventilation layer through which air can circulate is formed between the aluminum silicate fiber layer and the glass fiber layer. The ventilation layer can be used to cool the aluminum silicate fiber layer and the glass fiber layer. At the same time, the ventilation layer is reinforced by an aerogel support plate. The aluminum silicate fiber has good heat-insulating properties, and aerogel is also a material with high heat-insulating properties. Combined with the good high-temperature resistance and corrosion resistance of glass fiber, the heat-insulating baffle can achieve a heat-insulating effect, thereby achieving the purpose of improving the comfort of the vehicle.

[0005] In order to achieve the above-mentioned purpose, the main technical solutions adopted by this utility model include:

[0006] A thermal insulation baffle for a front exhaust pipe of an automobile comprises an aluminum silicate fiber layer, both sides of the aluminum silicate fiber layer are fixedly connected to connecting blocks, the opposite side of the connecting blocks is commonly connected to a glass fiber layer, a ventilation layer is provided between the glass fiber layer and the aluminum silicate fiber layer, a plurality of aerogel support plates are fixedly connected inside the ventilation layer, and the two sides of the aerogel support plates are respectively fixedly connected to the aluminum silicate fiber layer and the glass fiber layer.

[0007] Preferably, a ceramic fiber layer is fixedly connected to the lower bottom surface of the glass fiber layer.

[0008] Preferably, a plurality of tungsten-molybdenum alloy isolation strips are fixedly connected to the lower bottom surface of the ceramic fiber layer, and the plurality of tungsten-molybdenum alloy isolation strips are evenly distributed on the lower bottom surface of the ceramic fiber layer.

[0009] Preferably, a heat insulating cotton layer is fixedly connected to one side of the plurality of tungsten-molybdenum alloy isolation strips away from the ceramic fiber layer.

[0010] Preferably, the cross section of the tungsten-molybdenum alloy isolation strip is triangular.

[0011] The utility model has at least the following beneficial effects:

[0012] 1. The aluminum silicate fiber layer is fixedly connected to the connecting blocks on both sides, and then the glass fiber layer is connected through the connecting blocks, so that a ventilation layer through which air can circulate is formed between the aluminum silicate fiber layer and the glass fiber layer. The ventilation layer can be used to cool the aluminum silicate fiber layer and the glass fiber layer. At the same time, the ventilation layer is reinforced by the aerogel support plate. The aluminum silicate fiber has good thermal insulation performance, and aerogel is also a material with high thermal insulation performance. Combined with the good high temperature resistance and corrosion resistance of glass fiber, the thermal insulation partition can achieve the effect of thermal insulation, thereby achieving the purpose of improving the comfort of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0014] Figure 1 The three-dimensional Figure 1 ;

[0015] Figure 2 The three-dimensional Figure 2 ;

[0016] Figure 3 The three-dimensional Figure 3 .

[0017] In the figure, 1. Aluminum silicate fiber layer; 2. Connecting block; 3. Glass fiber layer; 4. Ventilation layer; 5. Aerogel support plate; 6. Ceramic fiber layer; 7. Tungsten-molybdenum alloy isolation strip; 8. Insulation cotton layer. DETAILED DESCRIPTION

[0018] The following will describe the implementation methods of the present application in detail with reference to the accompanying drawings and examples, so that the implementation process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0019] like Figure 1-Figure 3As shown, the present embodiment provides a heat-insulating baffle for a front exhaust pipe of an automobile, comprising an aluminum silicate fiber layer 1, with connecting blocks 2 fixedly connected to both sides of the aluminum silicate fiber layer 1, the connecting blocks 2 and the aluminum silicate fiber layer 1 are both made of aluminum silicate fiber material, which is an excellent heat-insulating material with high temperature resistance and can be used in a temperature range of 900°C to 1200°C, the opposite side of the connecting block 2 is commonly connected with a glass fiber layer 3, the glass fiber layer 3 is made of glass fiber material, which has good high-temperature resistance and corrosion resistance and can be used in a temperature range of 400°C to 700°C, a ventilation layer 4 is provided between the glass fiber layer 3 and the aluminum silicate fiber layer 1, and when the automobile is driving, the flowing air can dissipate heat to the glass fiber layer 3 and the aluminum silicate fiber layer 1 through the ventilation layer 4, thereby achieving the effect of lowering the temperature of the heat-insulating baffle, and at the same time, the ventilation layer 4 can reduce heat transfer to achieve the purpose of heat insulation;

[0020] Further, as 1- Figure 3 As shown, a plurality of aerogel support plates 5 are fixedly connected to the interior of the ventilation layer 4. The aerogel support plates 5 are made of aerogel. Aerogel is a lightweight, highly thermally insulating material that can withstand temperatures up to 1000°C. It has a very low thermal conductivity. The two sides of the aerogel support plates 5 are respectively fixedly connected to the aluminum silicate fiber layer 1 and the glass fiber layer 3. Aerogel can be used to connect the glass fiber layer 3 and the aluminum silicate fiber layer 1 together to play a reinforcing role.

[0021] Going further, such as 1- Figure 3 As shown, a ceramic fiber layer 6 is fixedly connected to the lower bottom surface of the glass fiber layer 3. The ceramic fiber layer 6 is made of ceramic fiber material. The ceramic fiber layer 6 has good thermal insulation performance and high temperature resistance and can withstand temperatures as high as 1000°C. It can improve the heat resistance of the thermal insulation partition and extend the service life of the thermal insulation partition.

[0022] Furthermore, as 1- Figure 3 As shown, a plurality of tungsten-molybdenum alloy isolation strips 7 are fixedly connected to the lower bottom surface of the ceramic fiber layer 6. The tungsten-molybdenum alloy isolation strips 7 are made of tungsten-molybdenum alloy. Tungsten-molybdenum alloy is a kind of alloy with extremely high high temperature resistance and can work at temperatures above 2000°C. The plurality of tungsten-molybdenum alloy isolation strips 7 are evenly distributed on the lower bottom surface of the ceramic fiber layer 6. The plurality of tungsten-molybdenum alloy isolation strips 7 can avoid direct contact between the exhaust pipe and the ceramic fiber layer 6, thereby protecting the ceramic fiber layer 6. The cross-section of the tungsten-molybdenum alloy isolation strip 7 is triangular, so that when the exhaust pipe and the tungsten-molybdenum alloy isolation strip 7 conflict with each other, the tungsten-molybdenum alloy isolation strip 7 will not contact the exhaust pipe over a large area.

[0023] Going further, such as 1- Figure 3As shown, a heat insulating cotton layer 8 is fixedly connected to one side of the plurality of tungsten-molybdenum alloy isolation strips 7 away from the ceramic fiber layer 6. The heat insulating cotton layer 8 is made of heat insulating cotton. The heat insulating cotton is in direct contact with the exhaust pipe to reduce heat transfer.

[0024] like Figure 1-Figure 3 As shown, the principle of the heat insulation baffle for the front exhaust pipe of an automobile provided in this embodiment is as follows: after the heat insulation baffle is installed at the front end of the automobile, the heat insulation cotton layer 8 and the exhaust pipe are in conflict with each other. When the automobile is driving, the flowing air will pass through the ventilation layer 4 to dissipate heat to the aluminum silicate fiber layer 1 and the glass fiber layer 3. With the cooperation of the aerogel support plate 5, the heat of the exhaust pipe can be reduced and transferred to the aluminum silicate fiber layer 1 through the heat insulation cotton layer 8, the tungsten-molybdenum alloy isolation strip 7 and the ceramic fiber layer 6.

[0025] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term and should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0026] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0027] The above description shows and describes several preferred embodiments of the present invention. However, as previously mentioned, it should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the present invention as taught herein or through the techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.

Claims

1. A heat-insulating baffle for a front exhaust pipe of an automobile, comprising an aluminum silicate fiber layer (1), characterized in that: Both sides of the aluminum silicate fiber layer (1) are fixedly connected to connection blocks (2), and the opposite side of the connection blocks (2) is commonly connected to a glass fiber layer (3). A ventilation layer (4) is provided between the glass fiber layer (3) and the aluminum silicate fiber layer (1). A plurality of aerogel support plates (5) are fixedly connected inside the ventilation layer (4), and both sides of the aerogel support plates (5) are fixedly connected to the aluminum silicate fiber layer (1) and the glass fiber layer (3), respectively.

2. The heat-insulating baffle for an automobile front exhaust pipe according to claim 1, characterized in that: A ceramic fiber layer (6) is fixedly connected to the lower bottom surface of the glass fiber layer (3).

3. The heat-insulating baffle for an automobile front exhaust pipe according to claim 2, characterized in that: A plurality of tungsten-molybdenum alloy isolation strips (7) are fixedly connected to the lower bottom surface of the ceramic fiber layer (6), and the plurality of tungsten-molybdenum alloy isolation strips (7) are evenly distributed on the lower bottom surface of the ceramic fiber layer (6).

4. The heat-insulating baffle for an automobile front exhaust pipe according to claim 3, characterized in that: A heat insulation cotton layer (8) is fixedly connected to one side of the plurality of tungsten-molybdenum alloy isolation strips (7) away from the ceramic fiber layer (6).

5. The heat-insulating baffle for an automobile front exhaust pipe according to claim 3, characterized in that: The cross section of the tungsten-molybdenum alloy isolation strip (7) is triangular.

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