Heat insulation plate, engine, power assembly and vehicle

Abstract

The heat insulation plate is used for the engine and connected with a cylinder head cover and comprises a body and a reinforcing rib, the body is provided with a main body part and a concave part, the concave part is connected with the main body part, the concave part is concave relative to the main body part to form a groove, and the reinforcing rib is contained in the groove and connected with the main body part and the concave part. According to the utility model, the overall mode of the heat insulation plate is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a heat insulation board, an engine, a power assembly and a vehicle. Background Art

[0002] The working engine will emit a lot of heat, which can be transferred to other parts in the engine compartment, thus affecting the working state of other parts. In order to block the heat radiation from the heat source, in the prior art, the automotive industry generally uses heat insulation boards for heat insulation. However, the long-term vibration state of the engine will cause the heat insulation board structure to deform and reduce the mode of the heat insulation board. Utility Model Content

[0003] The utility model aims to provide a heat insulation board, an engine, a power assembly and a vehicle, which solves the problem of low mode of the heat insulation board of a cylinder head cover.

[0004] In order to achieve the purpose of the utility model, the utility model provides the following technical solutions:

[0005] In a first aspect, the utility model provides a heat insulation plate, which is used to be connected to a cylinder head cover, comprising: a main body, having a main body and a recessed portion, the recessed portion is connected to the main body, and the recessed portion is recessed relative to the main body to form a groove; a reinforcing rib, which is accommodated in the groove and connected to the main body and the recessed portion.

[0006] In one embodiment, the reinforcing rib extends in the groove along the length direction of the main body or the width direction of the main body.

[0007] In one embodiment, the number of the recessed portions is multiple, and the multiple recessed portions include a first recessed portion, a second recessed portion, a third recessed portion, and a fourth recessed portion, the first recessed portion and the second recessed portion are arranged at intervals along the length direction of the main body, the first recessed portion and the third recessed portion are arranged at intervals along the width direction of the main body, and the second recessed portion and the fourth recessed portion are arranged at intervals along the width direction of the main body;

[0008] There are multiple reinforcing ribs, and at least one reinforcing rib is accommodated in each of the grooves formed by the first recessed portion, the second recessed portion, the third recessed portion, and the fourth recessed portion.

[0009] In one embodiment, the main body includes a first plate, a connecting plate, and a second plate connected in sequence, the first plate is inclined to the connecting plate, and the second plate is inclined to the connecting plate.

[0010] In one embodiment, the heat insulation board further includes a plurality of side panels, one end of each of the side panels is connected to the main body, and the plurality of side panels are disposed on at least one of the first panel, the connecting panel, and the second panel.

[0011] In one embodiment, the plurality of side panels include a first side panel, a second side panel and a third side panel, the first side panel and the second side panel are spaced apart on the first panel along the length direction of the main body, and the third side panel is disposed on the second panel.

[0012] In one embodiment, a first hole is formed on the first side plate, a second hole is formed on the second side plate, and a third hole is formed on the third side plate. At least one of the first hole, the second hole and the third hole is a waist-shaped hole.

[0013] In one embodiment, the first side plate and the second side plate are both provided with rounded corners at one end away from the first plate, and the third side plate is provided with a rounded corner at one end away from the second plate; and / or the recessed portion is smoothly connected to the main body.

[0014] In one embodiment, the first side plate is inclined with respect to the first plate, the second side plate is inclined with respect to the first plate, and the third side plate is inclined with respect to the second plate.

[0015] In one embodiment, a first arc groove is provided on an edge of the first plate close to the first side plate, a second arc groove is provided on an edge of the first plate close to the second side plate, a third arc groove and a fourth arc groove are provided on an edge of the connecting plate, the first arc groove and the second arc groove are located between the first side plate and the second side plate, and the third arc groove and the fourth arc groove are located between the second side plate and the third side plate.

[0016] In one embodiment, a fourth hole, a fifth hole and a sixth hole are provided at intervals along the length direction of the main body at one end of the first plate away from the first side plate, and a seventh hole is provided at one end of the second plate away from the third side plate.

[0017] In a second aspect, the utility model further provides an engine, comprising a cylinder head cover and the heat insulation plate as described in the first aspect, wherein the cylinder head cover is connected to the heat insulation plate.

[0018] In a third aspect, the utility model further provides a power assembly, comprising the engine as described in the second aspect.

[0019] In a fourth aspect, the utility model further provides a vehicle, comprising the engine as described in the second aspect or the powertrain as described in the third aspect.

[0020] By setting a heat insulation board, the heat insulation board includes a body and a reinforcing rib, the body has a main body and a recessed part, the recessed part is connected to the main body, the recessed part is recessed relative to the main body to form a groove, and the reinforcing rib is received in the groove and connected to the main body and the recessed part. During the vibration process of the vehicle running, the reinforcing rib in the groove is tightly connected with the main body and the recessed part, so as to avoid deformation of the groove, the main body and the recessed part, improve the mode of the groove, the main body and the recessed part, and thus enhance the mode of the cylinder head cover heat insulation board. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 is a schematic structural diagram of a heat insulation board according to an embodiment;

[0023] Figure 2 is a front view of a heat shield of one embodiment;

[0024] Figure 3 is a first installation schematic diagram of a heat insulation board according to an embodiment;

[0025] Figure 4 The second installation schematic diagram of the heat insulation board of an embodiment.

[0026] Description of reference numerals:

[0027] X-length direction of the main body, Y-width direction of the main body, Z-thickness direction of the main body, 10-insulation board, 11-main body, 111-main body, 1111-first plate, 1112-connecting plate, 1113-second plate, 112-recessed part, 1121-first recessed part, 1122-second recessed part, 1123-third recessed part, 1124-fourth recessed part, 12-reinforcement rib, 13-first side plate, 14-second side plate, 15-third side plate, 16-first hole, 17-second hole, 18-third hole, 20-first arc groove, 21-second arc groove, 22-third arc groove, 23-fourth arc groove, 24-first recessed area, 25-second recessed area, 26-third recessed area, 27-raised area, 28-first arc avoidance area, 29-second arc avoidance area, 30-fourth hole, 31-fifth hole, 32-sixth hole, 33-seventh hole, 34-first flange, 35-second flange, 36-third flange. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there can be a central component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time.

[0030] Unless otherwise defined, all technical and scientific terms used in this utility model have the same meaning as those commonly understood by technicians in the technical field of this utility model. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used in this utility model includes any and all combinations of one or more related listed items.

[0031] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0032] The present invention provides a heat shield 10, which is used to connect with the cylinder head cover. Figure 1 and Figure 3 , including a body 11, a main body portion 111, a recessed portion 112 and a reinforcing rib 12.

[0033] The body 11 has a main body 111 and a recessed portion 112, the recessed portion 112 is connected to the main body 111, and the recessed portion 112 is recessed relative to the main body 111 to form a groove. Optionally, the groove can be a polygonal groove, a circular groove, an elliptical groove, an irregular groove, etc. Optionally, the groove can be specifically but not limited to a quadrilateral groove, a pentagonal groove, a hexagonal groove, an octagonal groove, a circular groove, an elliptical groove, etc. Optionally, the body 11 can be fixed together by the inner layer and the outer layer in a full-edge manner. Optionally, the body 11 can be an aluminum-plated plate.

[0034] The reinforcing rib 12 is received in the groove and connected to the main body 111 and the recessed portion 112. Optionally, the shape of the reinforcing rib 12 may be, but is not limited to, a strip, a well, a fan, an X, a circle, a combination of shapes, and the like.

[0035] The heat insulation board 10 is provided, and the heat insulation board 10 includes a body 11 and a reinforcing rib 12. The body 11 has a main body 111 and a recessed portion 112. The recessed portion 112 is connected to the main body 111. The recessed portion 112 is recessed relative to the main body 111 to form a groove. The reinforcing rib 12 is received in the groove and is connected to the main body 111 and the recessed portion 112. During the vibration process of the vehicle running, the reinforcing rib 12 in the groove is tightly connected to the main body 111 and the recessed portion 112, so as to avoid deformation of the groove, the main body 111 and the recessed portion 112, and improve the mode of the groove, the main body 111 and the recessed portion 112, thereby enhancing the mode of the cylinder head cover heat insulation board 10.

[0036] In one embodiment, please refer to Figure 1 The reinforcing rib 12 extends in the groove along the length direction X of the main body or the width direction Y of the main body.

[0037] Optionally, the reinforcing rib 12 extends in the groove along the length direction X of the main body. Optionally, the reinforcing rib 12 extends in the groove along the width direction Y of the main body. Specifically, the reinforcing rib 12 must extend in the groove along the thickness direction Z of the main body. Optionally, the reinforcing rib 12 extends in the groove along the length direction X of the main body and the thickness direction Z of the main body. Optionally, the reinforcing rib 12 extends in the groove along the width direction Y of the main body and the thickness direction Z of the main body. Optionally, the reinforcing rib 12 extends in the groove along the length direction X of the main body, the width direction Y of the main body and the thickness direction Z of the main body.

[0038] Specifically, the reinforcing rib 12 extends in the groove along the length direction X of the main body or the width direction Y of the main body, and the shape formed can be but is not limited to a long strip, a well, a fan, an X, a circle, a combination of shapes, etc.

[0039] Optionally, the reinforcing ribs 12 also enhance the strength of the heat insulation board 10 to prevent it from deforming under high-intensity working conditions.

[0040] In addition, the reinforcing ribs 12 improve the mode, increase the strength of the heat shield 10, and avoid cracking due to resonance with the engine.

[0041] In one embodiment, please refer to Figure 1There are multiple recessed portions 112, and the multiple recessed portions 112 include a first recessed portion 1121, a second recessed portion 1122, a third recessed portion 1123 and a fourth recessed portion 1124. The first recessed portion 1121 and the second recessed portion 1122 are arranged at intervals along the length direction X of the main body, the first recessed portion 1121 and the third recessed portion 1123 are arranged at intervals along the width direction Y of the main body, and the second recessed portion 1122 and the fourth recessed portion 1124 are arranged at intervals along the width direction Y of the main body; there are multiple reinforcing ribs 12, and at least one reinforcing rib 12 is respectively accommodated in the grooves formed by the first recessed portion 1121, the second recessed portion 1122, the third recessed portion 1123 and the fourth recessed portion 1124.

[0042] Optionally, the first plate 1111, the connecting plate 1112 and the second plate 1113 may be an integrated structure, or may be manufactured separately and then connected by stamping and welding, without limitation. Optionally, the first recessed portion 1121, the second recessed portion 1122, the third recessed portion 1123, the fourth recessed portion 1124 and the fifth recessed portion 112 may be formed by casting or by stamping, without limitation.

[0043] Optionally, the third recessed portion 1123 and the fourth recessed portion 1124 are spaced apart and connected on the first plate 1111 along the length direction X of the main body.

[0044] Optionally, the axis of the first recessed portion 1121 is parallel to the axis of the third recessed portion 1123, and the axis of the second recessed portion 1122 is parallel to the axis of the fourth recessed portion 1124. Optionally, an angle m is formed between the axis of the first recessed portion 1121 and the axis of the third recessed portion 1123, and an angle n is formed between the axis of the second recessed portion 1122 and the axis of the fourth recessed portion 1124. Optionally, the angle m satisfies: 10°≤m≤90°, and the angle n satisfies: 10°≤n≤90°.

[0045] Optionally, a first recessed area 24 is provided on the second plate 1113, a second recessed area 25 is provided on the connecting plate 1112, a third recessed area 26 is further provided on the first plate 1111, the third recessed area 26 is arranged opposite to the first hole 16, and a convex area 27 is provided on the first plate 1111 near the fourth recessed portion 1124. The first recessed area 24, the second recessed area 25, the third recessed area 26 and the convex area 27 are used to avoid parts around the cylinder head cover. Optionally, a first arc-shaped avoidance area 28 and a second arc-shaped avoidance area 29 are further provided on the edge of the first plate 1111, the first arc-shaped avoidance area 28 is located between the first side plate 13 and the second side plate 14, the second arc-shaped avoidance area 29 is located between the second side plate 14 and the third side plate 15, and the first arc-shaped avoidance area 28 and the second arc-shaped avoidance area 29 form an avoidance space for the mounting structure on the cylinder head cover to avoid collision between parts.

[0046] In one embodiment, please refer to Figure 1 The main body 111 includes a first plate 1111, a connecting plate 1112 and a second plate 1113 which are connected in sequence. The first plate 1111 and the connecting plate 1112 are inclined to each other, and the second plate 1113 and the connecting plate 1112 are inclined to each other.

[0047] Optionally, a first angle A is defined between the first plate 1111 and the connecting plate 1112 , and a second angle B is defined between the second plate 1113 and the connecting plate 1112 , satisfying the following conditions: 190°≤A≤260°, 100°≤B≤170°.

[0048] Optionally, the first angle A between the first plate 1111 and the connecting plate 1112 may be, but not limited to, 100°, 120°, 150°, 170°, etc. Optionally, the second angle B between the second plate 1113 and the connecting plate 1112 may be, but not limited to, 190°, 200°, 230°, 260°, etc.

[0049] Specifically, the above configuration allows for flexible arrangement between the first plate 1111 and the connecting plate 1112 , and flexible arrangement between the second plate 1113 and the connecting plate 1112 .

[0050] In one embodiment, please refer to Figure 1 The insulation board 10 also includes a plurality of side panels, one end of each of which is connected to the main body, and the plurality of side panels are arranged on at least one of the first plate 1111 , the connecting plate 1112 and the second plate 1113 .

[0051] Optionally, the connection method between one end of the multiple side panels and one end of the body 11 can be, but is not limited to, snap connection, riveting connection, and welding connection. Optionally, the connection method between one end of the multiple side panels and one end of the body 11 is welding connection, and the specific welding method between one end of the multiple side panels and one end of the body 11 is brazing, using a metal material with a lower melting point than the side panels and the body 11 as a brazing material, heating the side panels, the body 11 and the brazing material to a temperature higher than the melting point of the brazing material and lower than the melting point of the side panels and the body 11, and using liquid brazing material to wet the side panels and the body 11, filling the interface gap and achieving mutual diffusion between atoms with the side panels and the body 11, thereby achieving welding, and the welding connection method is simple to operate and has a stable connection. The utility model uses brazing as an example of the connection method, which should not be understood as a limitation of the utility model.

[0052] In one embodiment, please refer to Figure 1 The multiple side panels include a first side panel 13, a second side panel 14 and a third side panel 15. The first side panel 13 and the second side panel 14 are spaced apart on the first panel 1111 along the length direction X of the main body, and the third side panel 15 is arranged on the second panel 1113.

[0053] Optionally, the first side panel 13, the second side panel 14 and the third side panel 15 are polished, and the polishing method may be fluid polishing, mechanical polishing, ultrasonic polishing, chemical polishing and electrolytic polishing, etc. Polishing the first side panel 13, the second side panel 14 and the third side panel 15 improves the smoothness of the first side panel 13, the second side panel 14 and the third side panel 15 and avoids scratching other engine components.

[0054] In one embodiment, please refer to Figure 1 A first hole 16 is formed on the first side plate 13, a second hole 17 is formed on the second side plate 14, and a third hole 18 is formed on the third side plate 15. At least one of the first hole 16, the second hole 17 and the third hole 18 is a waist-shaped hole.

[0055] Optionally, the first hole 16 may be a polygonal hole, a waist-shaped hole, a circular hole, an elliptical hole, an irregular hole, etc. Optionally, the second hole 17 may be a polygonal hole, a waist-shaped hole, a circular hole, an elliptical hole, an irregular hole, etc. Optionally, the third hole 18 may be a polygonal hole, a circular hole, a waist-shaped hole, an elliptical hole, an irregular hole, etc. Optionally, the first hole 16, the second hole 17 and the third hole 18 may be, but are not limited to, a quadrilateral hole, a pentagonal hole, a hexagonal hole, an octagonal hole, a waist-shaped hole, a circular hole, an elliptical hole, etc.

[0056] Optionally, the first hole 16 is set as a round hole and used for positioning, and the second hole 17 and the third hole 18 are waist-shaped holes, which are fixed to the mounting bracket of the cylinder head cover by bolts.

[0057] Specifically, the above arrangement of the first hole 16 , the second hole 17 and the third hole 18 improves the accuracy of installing the heat insulation board 10 .

[0058] In one embodiment, please refer to Figure 1 , the first side plate 13 and the second side plate 14 are both provided with rounded corners at one end away from the first plate 1111 , and the third side plate 15 is provided with a rounded corner at one end away from the second plate 1113 ; and / or, the recessed portion 112 is smoothly connected to the main body portion 111 .

[0059] Optionally, the ends of the first side panel 13 and the second side panel 14 away from the first panel 1111 are both provided with rounded corners, and the end of the third side panel 15 away from the second panel 1113 is provided with rounded corners, so that the ends of the first side panel 13 and the second side panel 14 away from the first panel 1111 are smooth and safe, and the ends of the third side panel 15 away from the second panel 1113 are smooth and safe. In addition, by providing rounded corners, the appearance quality of the ends of the first side panel 13 and the second side panel 14 away from the first panel 1111 and the appearance quality of the ends of the third side panel 15 away from the second panel 1113 are improved, and the dangerous situations such as scratching and stabbing fingers during the installation process can be avoided, and scratching other parts of the engine can also be avoided.

[0060] In one embodiment, please refer to Figure 1 The first side plate 13 is inclined with respect to the first plate 1111 , the second side plate 14 is inclined with respect to the first plate 1111 , and the third side plate 15 is inclined with respect to the second plate 1113 .

[0061] Optionally, there is a third angle C between the first side panel 13 and the first panel 1111, there is a fourth angle D between the second side panel 14 and the first panel 1111, and there is a fifth angle E between the third side panel 15 and the second panel 1113, satisfying: 50°≤C≤130°, 50°≤D≤130°, 50°≤E≤130°.

[0062] Optionally, the third angle C between the first side panel 13 and the first panel 1111 may be, but not limited to, 50°, 60°, 70°, 90°, 100°, 130°, etc. Optionally, the fourth angle D between the second side panel 14 and the first panel 1111 may be, but not limited to, 50°, 60°, 70°, 90°, 100°, 130°, etc. Optionally, the fifth angle E between the third side panel 15 and the second panel 1113 may be, but not limited to, 50°, 60°, 70°, 90°, 100°, 130°, etc.

[0063] Specifically, the above arrangement improves the flexibility of arrangement between the first side plate 13 and the first plate 1111, improves the flexibility of arrangement between the second side plate 14 and the first plate 1111, and improves the flexibility of arrangement between the third side plate 15 and the second plate 1113, thereby avoiding collision of parts with each other.

[0064] In one embodiment, please refer to Figure 1A first arc groove 20 is provided on the edge of the first plate 1111 close to the first side plate 13, a second arc groove 21 is provided on the edge of the first plate 1111 close to the second side plate 14, a third arc groove and a fourth arc groove are provided on the edge of the connecting plate 1112, the first arc groove 20 and the second arc groove 21 are located between the first side plate 13 and the second side plate 14, and the third arc groove 22 and the fourth arc groove 23 are located between the second side plate 14 and the third side plate 15.

[0065] For details, please refer to Figure 1 and Figure 4 The first arc groove 20, the second arc groove 21, the third arc groove 22 and the fourth arc groove 23 have the function of avoiding other parts. After the whole machine is assembled, the first arc groove 20, the second arc groove 21, the third arc groove 22 and the fourth arc groove 23 are convenient for detecting whether the bolts at this position on the cylinder head cover are misassembled or missing.

[0066] In one embodiment, please refer to Figure 1 , Figure 2 and Figure 3 A fourth hole 30 , a fifth hole 31 and a sixth hole 32 are provided at intervals along the length direction X of the main body at one end of the first plate 1111 away from the first side plate 13 , and a seventh hole 33 is provided at one end of the second plate 1113 away from the third side plate 15 .

[0067] Optionally, the fourth hole 30 may be a polygonal hole, a circular hole, an elliptical hole, an irregular hole, etc. Optionally, the fifth hole 31 may be a polygonal hole, a circular hole, an elliptical hole, an irregular hole, etc. Optionally, the sixth hole 32 may be a polygonal hole, a circular hole, an elliptical hole, an irregular hole, etc. Optionally, the seventh hole 33 may be a polygonal hole, a circular hole, an elliptical hole, an irregular hole, etc. Optionally, the fourth hole 30, the fifth hole 31, the sixth hole 32, and the seventh hole 33 may be, but are not limited to, a quadrilateral hole, a pentagonal hole, a hexagonal hole, an octagonal hole, a circular hole, an elliptical hole, etc.

[0068] Optionally, the fourth hole 30, the fifth hole 31, the sixth hole 32 and the seventh hole 33 are four waist-shaped connecting holes, and the bolts pass through the four waist-shaped connecting holes to be fixed on the boss of the cylinder head cover. The mounting points at the lower part of the cylinder head cover are evenly distributed and compactly arranged, which can effectively improve the overall mode of the heat insulation board 10 and improve the influence of NVH on the heat insulation cover.

[0069] Optionally, a first flange 34 is provided between the fourth hole 30 and the fifth hole 31, and the first flange 34 is located at the edge of the first plate 1111 close to the fourth hole 30; a second flange 35 is provided between the fifth hole 31 and the sixth hole 32, and the second flange 35 is located at the edge of the first plate 1111 close to the fifth hole 31; a third flange 36 is provided between the sixth hole 32 and the seventh hole 33, and the third flange 36 is located at the edge of the first plate 1111 close to the sixth hole 32; the first flange 34, the second flange 35 and the third flange 36 increase the wrapping area of ​​the heat insulation plate 10, block the heat convection from diffusing through the gap between the cylinder head cover and the heat insulation plate 10, improve the heat insulation efficiency, and extend the service life of the cylinder head cover.

[0070] The embodiment of the utility model further provides an engine, comprising a cylinder head cover and the aforementioned heat insulation plate 10 , wherein the cylinder head cover is connected to the heat insulation plate 10 .

[0071] Optionally, the engine can be a one-cylinder engine, a three-cylinder engine, a four-cylinder engine, a six-cylinder engine, a twelve-cylinder engine, etc., without limitation. Optionally, the engine further includes a cylinder block, and a cylinder head cover is connected to the cylinder block and assembled and fixed by a plurality of bolts.

[0072] An embodiment of the utility model further provides a power assembly, comprising the engine as described above.

[0073] An embodiment of the utility model further provides a vehicle, comprising the aforementioned engine or the aforementioned powertrain.

[0074] Specifically, the engine is connected to the transmission device to achieve power transmission for the vehicle.

[0075] Optionally, the vehicle can be divided into a micro car, a light car, a mid-size car and a high-end car according to the displacement of the engine, and the vehicles all have an engine including the above-mentioned embodiment.

[0076] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientation or positional relationship of the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0077] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the present invention still fall within the scope covered by the present invention.

Claims

1. A heat shield, the heat shield being used to be connected to a cylinder head cover, characterized in that: include: A body, comprising a main body portion and a recessed portion, wherein the recessed portion is connected to the main body portion and is recessed relative to the main body portion to form a groove; The reinforcing rib is received in the groove and connected to the main body and the recessed portion.

2. The heat insulation board according to claim 1, characterized in that The reinforcing rib extends in the groove along the length direction of the main body or the width direction of the main body.

3. The heat insulation board according to claim 1, characterized in that The number of the recessed parts is multiple, and the multiple recessed parts include a first recessed part, a second recessed part, a third recessed part and a fourth recessed part, the first recessed part and the second recessed part are arranged at intervals along the length direction of the main body, the first recessed part and the third recessed part are arranged at intervals along the width direction of the main body, and the second recessed part and the fourth recessed part are arranged at intervals along the width direction of the main body; There are multiple reinforcing ribs, and at least one reinforcing rib is accommodated in each of the grooves formed by the first recessed portion, the second recessed portion, the third recessed portion, and the fourth recessed portion.

4. The heat insulation board according to claim 1, characterized in that The main body includes a first plate, a connecting plate, and a second plate that are connected in sequence. The first plate is inclined to the connecting plate, and the second plate is inclined to the connecting plate.

5. The heat insulation board according to claim 4, characterized in that The heat insulation board further includes a plurality of side plates, one end of each of the side plates is connected to the main body, and the side plates are arranged on at least one of the first plate, the connecting plate and the second plate.

6. The heat insulation board according to claim 5, characterized in that The plurality of side plates include a first side plate, a second side plate and a third side plate. The first side plate and the second side plate are spaced apart on the first plate along the length direction of the main body, and the third side plate is arranged on the second plate.

7. The heat insulation board according to claim 6, characterized in that The first side plate is provided with a first hole, the second side plate is provided with a second hole, the third side plate is provided with a third hole, and at least one of the first hole, the second hole and the third hole is a waist-shaped hole.

8. The heat insulation board according to claim 6, characterized in that The first side plate and the second side plate are both provided with rounded corners at one end away from the first plate, and the third side plate is provided with a rounded corner at one end away from the second plate; and / or the recessed portion is smoothly connected to the main body.

9. The heat insulation board according to claim 6, characterized in that The first side plate is inclined with respect to the first plate, the second side plate is inclined with respect to the first plate, and the third side plate is inclined with respect to the second plate.

10. The heat insulation board according to claim 6, characterized in that A first arc groove is provided on the edge of the first plate close to the first side plate, a second arc groove is provided on the edge of the first plate close to the second side plate, a third arc groove and a fourth arc groove are provided on the edge of the connecting plate, the first arc groove and the second arc groove are located between the first side plate and the second side plate, and the third arc groove and the fourth arc groove are located between the second side plate and the third side plate.

11. The heat insulation board according to claim 6, characterized in that A fourth hole, a fifth hole and a sixth hole are provided at intervals along the length direction of the main body at one end of the first plate away from the first side plate, and a seventh hole is provided at one end of the second plate away from the third side plate.

12. An engine, characterized in that: The invention comprises a cylinder head cover and the heat insulation plate according to any one of claims 1 to 11, wherein the cylinder head cover is connected to the heat insulation plate.

13. A powertrain, characterized in that: Comprising the engine of claim 12.

14. A vehicle, characterized in that: Comprising the engine as claimed in claim 12 or the powertrain as claimed in claim 13.

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