Engine and vehicle

CN224717765UActive Publication Date: 2026-09-04BYD CO LTD
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Patent Information

Application Number
CN202521850214.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-28
Publication Date
2026-09-04
Estimated Expiration
2035-08-28

AI Technical Summary

Technical Problem

机油粘度的增加会使发动机的启动阻力变大

Benefits of technology

[0025] Secondly, this application provides a vehicle that includes the engine described above.

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Abstract

The application discloses an engine and a vehicle, and belongs to the technical field of vehicles.The engine comprises an engine body and a heat preservation structure, the engine body has a plurality of outer wall surfaces, and the plurality of outer wall surfaces are connected to form an outer peripheral surface of the engine body; and the heat preservation structure is arranged outside the plurality of outer wall surfaces to wrap the outer peripheral surface of the engine body.The heat preservation structure is arranged outside the plurality of outer wall surfaces, so that the outer peripheral surface of the engine body can be completely wrapped, the possibility of heat exchange between the engine and the external environment from all directions is reduced, the starting efficiency of the engine body is improved, the natural dissipation of the heat of the engine body is reduced, the temperature inside the engine body is maintained as much as possible, the condensation of water vapor is reduced to relieve the oil emulsification phenomenon, the flowability of the oil is maintained, and the overall performance and energy consumption of the engine body in a cold environment are optimized.
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Description

Technical Field

[0001] This application belongs to the field of vehicle technology, and in particular relates to an engine and a vehicle. Background Technology

[0002] In low ambient temperatures, the engine oil may become too viscous, even solidifying or settling. Increased oil viscosity increases starting resistance. Furthermore, because the engine temperature may not reach the critical point for complete fuel evaporation, frequent cold starts can cause oil emulsification. This occurs when water vapor generated during engine operation mixes with the lubricating oil to form a stable emulsion, affecting engine performance and fuel consumption. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the related art. To this end, this application proposes an engine and vehicle that optimizes the overall performance and energy consumption of the engine body in cold environments.

[0004] In a first aspect, this application provides an engine, comprising:

[0005] The engine body has multiple outer wall surfaces, which are connected to form the outer peripheral surface of the engine body.

[0006] A thermal insulation structure is disposed outside the plurality of outer wall surfaces to cover the outer peripheral surface of the engine body.

[0007] According to the engine of this application, the heat insulation structure is located outside multiple outer wall surfaces, thereby completely covering the outer peripheral surface of the engine body, reducing the possibility of heat exchange between the engine and the external environment from all directions, improving the starting efficiency of the engine body, reducing the natural dissipation of heat from the engine body, maintaining the internal temperature of the engine body as much as possible, reducing the condensation of water vapor to alleviate oil emulsification, maintaining the fluidity of the oil, and optimizing the overall performance and energy consumption of the engine body in cold environments.

[0008] According to one embodiment of this application, the thermal insulation structure is shaped to the outer peripheral surface of the engine.

[0009] According to one embodiment of this application, the thermal insulation structure is respectively attached to each of the outer wall surfaces; and / or

[0010] The insulation structure is threadedly connected to the engine body.

[0011] According to one embodiment of this application, the thermal insulation structure includes a plurality of covering sheets, and the covering sheets correspond one-to-one with the outer wall surface.

[0012] According to one embodiment of this application, the covering sheet is at least partially conformally attached to at least a portion of the corresponding outer wall surface.

[0013] According to one embodiment of this application, at least some of the covering sheets are snapped together; and / or

[0014] At least some of the covering sheets are threaded together; and / or

[0015] At least a portion of the covering sheet and the corresponding outer wall surface are threaded together.

[0016] According to one embodiment of this application, the thermal insulation structure includes:

[0017] Insulation layer;

[0018] The heat insulation layer has a first protective layer and a second protective layer on both sides, with the first protective layer located close to the outer wall surface.

[0019] According to one embodiment of this application, the thermal conductivity of the insulation layer is not greater than 0.05 W / (m·K); and / or

[0020] The insulation layer is made of either glass fiber or aerogel; and / or

[0021] The first protective layer and the second protective layer have the same thickness.

[0022] According to one embodiment of this application, the thickness of the insulation structure ranges from 10 to 12 mm.

[0023] According to one embodiment of this application, the thermal insulation structure has an allowance hole, and the engine further includes:

[0024] The peripheral accessory is disposed on the engine body and extends through the clearance hole to the outside of the insulation structure.

[0025] Secondly, this application provides a vehicle that includes the engine described above.

[0026] According to this application, the vehicle optimizes the overall performance and energy consumption of the vehicle in cold environments by fully covering the outer peripheral surface of the engine body with an insulation structure.

[0027] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0028] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0029] Figure 1 This is one of the structural schematic diagrams of the engine provided in the embodiments of this application;

[0030] Figure 2 This is a second schematic diagram of the engine structure provided in the embodiments of this application;

[0031] Figure 3 This is a schematic diagram of the structure of the first coating sheet provided in the embodiments of this application;

[0032] Figure 4 This is a schematic diagram of the structure of the second coating sheet provided in the embodiments of this application;

[0033] Figure 5 This is a schematic diagram of the structure of the third coating sheet provided in the embodiments of this application;

[0034] Figure 6 This is a schematic diagram of the structure of the fourth coating sheet provided in the embodiments of this application;

[0035] Figure 7 This is a schematic diagram of the structure of the fifth coating sheet provided in the embodiments of this application;

[0036] Figure 8 This is a schematic diagram of the structure of the sixth coating sheet provided in the embodiments of this application;

[0037] Figure 9 This is a cross-sectional schematic diagram of the thermal insulation structure provided in the embodiments of this application.

[0038] Figure label:

[0039] 100. Engine body;

[0040] 200. Thermal insulation structure; 201. Heat insulation layer; 202. First protective layer; 203. Second protective layer;

[0041] 210. Covering sheet; 211. Buckle; 212. Clearance hole. Detailed Implementation

[0042] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0043] The following is for reference. Figures 1-9 The engine provided in the embodiments of this application is described, the engine including an engine body 100 and a thermal insulation structure 200.

[0044] The engine body 100 has multiple outer wall surfaces, which are connected to form the outer peripheral surface of the engine body 100. It should be noted that the shape and size of each outer wall surface can be designed according to actual needs, and this embodiment does not impose specific restrictions on this.

[0045] Understandably, multiple outer wall surfaces are interconnected to form the outer peripheral surface of the engine body 100, serving to support and protect peripheral accessories mounted on the engine body 100. For example, the engine body 100 has six interconnected outer wall surfaces, namely, a front wall surface, a rear wall surface, a left wall surface, a right wall surface, an upper wall surface, and a lower wall surface.

[0046] The thermal insulation structure 200 is disposed on multiple outer wall surfaces to cover the outer peripheral surface of the engine body 100.

[0047] Understandably, the insulation structure 200 is located outside multiple outer wall surfaces, thereby completely covering the outer peripheral surface of the engine body 100. This reduces the possibility of heat exchange between the engine and the external environment from all directions, improves the starting efficiency of the engine body 100, reduces the natural dissipation of heat from the engine body 100, maintains the internal temperature of the engine body 100 as much as possible, reduces water vapor condensation to alleviate oil emulsification, maintains oil fluidity, and optimizes the overall performance and energy consumption of the engine body 100 in cold environments.

[0048] According to the embodiment of this application, the engine is fully covered by the thermal insulation structure 200 on the outer peripheral surface of the engine body 100, thereby optimizing the overall performance and energy consumption of the engine body 100 in cold environments.

[0049] In some embodiments, such as Figure 1 and Figure 2 As shown, the thermal insulation structure 200 is shaped to conform to the outer peripheral surface of the engine.

[0050] It is understandable that the shape of the insulation structure 200 matches the outer peripheral surface of the engine body 100. That is, the shape of the insulation structure 200 is designed according to the shape of the outer peripheral surface of the engine body 100 in order to maximize the contact area between the insulation structure 200 and the outer peripheral surface of the engine body 100, reduce air gaps, and improve the insulation effect, the structural stability of the engine, and the space utilization rate.

[0051] In some embodiments, such as Figure 1 and Figure 2 As shown, the thermal insulation structure 200 is attached to each of the outer wall surfaces.

[0052] It is understandable that the thermal insulation structure 200 is closely fitted to each outer wall surface of the engine body 100 (including but not limited to the front wall surface, rear wall surface, left wall surface, right wall surface, upper wall surface and lower wall surface), reducing air gaps, improving thermal insulation effect and structural stability, and also reducing relative displacement between the thermal insulation structure 200 bodies caused by vibration or external force, thus extending the service life of the thermal insulation structure 200.

[0053] In some embodiments, the insulation structure 200 and the engine body 100 are threaded together.

[0054] It is understandable that the insulation structure 200 is threadedly connected to the engine body 100, which facilitates the disassembly and maintenance of the insulation structure 200, maintains the compact structure of the engine, and increases the reliability of the connection between the insulation structure 200 and the engine body 100.

[0055] In some embodiments, such as Figures 1 to 8 As shown, the thermal insulation structure 200 includes multiple covering sheets 210, each corresponding to an outer wall surface. Of course, in other embodiments, multiple covering sheets 210 may correspond to one outer wall surface, or one covering sheet 210 may correspond to multiple outer wall surfaces; this embodiment does not impose specific limitations on this.

[0056] Understandably, compared to the integral design of the insulation structure 200, the insulation structure 200 is designed as a split structure by using multiple covering pieces 210. This not only facilitates disassembly and maintenance and improves the maintainability of the engine, but also allows each covering piece 210 to be customized according to the shape and size of the corresponding outer wall surface, thereby improving the adaptability of the insulation structure 200 and enabling it to adapt to engine bodies 100 of different shapes and sizes.

[0057] In some embodiments, such as Figures 1 to 8 As shown, the covering sheet 210 is at least partially conformally attached to at least a portion of the corresponding outer wall surface.

[0058] It is understood that by making the shape of each covering sheet 210 at least partially match the shape of the corresponding outer wall surface, the covering sheet 210 is made to fit as closely as possible to the corresponding outer wall surface, thereby reducing air gaps and improving the insulation effect.

[0059] For example, each covering sheet 210 is shaped to the corresponding outer wall surface, and the covering sheet 210 and the corresponding outer wall surface are in contact. Figures 1 to 8As shown, the plurality of covering sheets 210 include a first covering sheet 210a, a second covering sheet 210b, a third covering sheet 210c, a fourth covering sheet 210d, a fifth covering sheet 210e, and a sixth covering sheet 210f. The first covering sheet 210a is conformally attached to the front wall surface, the second covering sheet 210b is conformally attached to the right wall surface, the third covering sheet 210c is conformally attached to the rear wall surface, the fourth covering sheet 210d is conformally attached to the left wall surface, the fifth covering sheet 210e is conformally attached to the upper wall surface, and the sixth covering sheet 210f is conformally attached to the lower wall surface.

[0060] In some embodiments, such as Figures 1 to 8 As shown, at least some of the covering sheets 210 are snapped together.

[0061] Understandably, snap-fit ​​is a detachable connection method. At least some of the covering sheets 210 are connected by snap-fit ​​to form a whole, which improves the structural stability of the entire insulation structure 200. At the same time, snap-fit ​​often eliminates the need for additional connecting parts (such as bolts, nuts, etc.), facilitating quick assembly and disassembly of the covering sheets 210 and reducing production and maintenance costs.

[0062] For example, such as Figures 3 to 8 As shown, the first covering sheet 210a, the second covering sheet 210b, the third covering sheet 210c, the fourth covering sheet 210d, the fifth covering sheet 210e, and the sixth covering sheet 210f all have mutually cooperating buckles 211. Of course, in other embodiments, at least some of the covering sheets 210 may have buckles 211, and at least some of the covering sheets 210 may have slots that cooperate with the buckles 211. This embodiment does not impose specific limitations on this.

[0063] In some embodiments, at least some of the covering sheets 210 are threaded together.

[0064] Understandably, threaded connections are a type of detachable connection. At least some of the covering pieces 210 are connected by threads to form a whole, which improves the structural stability of the entire insulation structure 200. At the same time, threaded connections have high connection strength and reliability, reducing the possibility of the covering pieces 210 loosening or shifting during the operation of the engine body 100, thus improving the overall stability of the insulation structure 200.

[0065] In some embodiments, at least a portion of the covering sheet 210 is threadedly connected to the corresponding outer wall surface.

[0066] It is understandable that at least part of the covering sheet 210 is connected to the corresponding outer wall surface, thereby increasing the stability of the connection between the covering sheet 210 and the engine body 100 and improving the structural strength of the entire engine.

[0067] In this embodiment, as Figures 3 to 8As shown, the engine body 100 and the cover sheet 210 are only in contact through the snap-fit ​​between the cover sheets 210. Of course, in other embodiments, the engine body 100 and the cover sheet 210 can also be in contact through a threaded connection between the cover sheet 210 and the engine body 100, and this embodiment does not impose a specific limitation on this.

[0068] In some embodiments, such as Figure 9 As shown, the thermal insulation structure 200 includes a heat insulation layer 201, a first protective layer 202, and a second protective layer 203. The first protective layer 202 and the second protective layer 203 are respectively disposed on both sides of the heat insulation layer 201, with the first protective layer 202 disposed close to the outer wall surface. Exemplarily, the materials of the first protective layer 202 and the second protective layer 203 include, but are not limited to, aluminum, as long as they have good formability and support properties. This embodiment does not impose specific limitations in this regard.

[0069] Understandably, the heat insulation layer 201 reduces heat transfer within the engine body 100, thereby improving engine starting efficiency and fuel economy. The first protective layer 202 is positioned close to the outer wall of the engine body 100 to connect with the engine body 100 while reducing the possibility of mechanical wear and chemical corrosion of the heat insulation layer 201 caused by the operation of the engine body 100. The second protective layer 203 is located outside the heat insulation layer 201, reducing the impact of external environmental factors (such as dust, moisture, and mechanical impact) on the heat insulation layer 201.

[0070] In some embodiments, such as Figure 9 As shown, the thermal insulation structure 200 is formed by a pressing process, that is, by applying pressure, a tight bond is formed between the first protective layer 202, the heat insulation layer 201 and the second protective layer 203, reducing the air gap inside the thermal insulation structure 200 and improving the structural stability and thermal insulation performance of the entire thermal insulation structure 200.

[0071] In some embodiments, such as Figure 9 As shown, the thermal insulation structure 200 includes multiple covering sheets 210, each covering sheet 210 including a heat insulation layer 201 and a first protective layer 202 and a second protective layer 203 disposed on both sides of the heat insulation layer 201, thereby effectively improving the thermal insulation performance of the thermal insulation structure 200.

[0072] In some embodiments, such as Figure 9 As shown, the thermal conductivity of the insulation layer 201 is no greater than 0.05 W / (m·K).

[0073] It is understandable that the thermal conductivity of the heat insulation layer 201 is no greater than 0.05 W / (m·K), which means that the thermal conductivity of the heat insulation layer 201 is very low, which can effectively reduce the possibility of heat transfer from the engine body 100 to the outside, and improve the engine starting efficiency and fuel economy.

[0074] In some embodiments, such as Figure 9 As shown, the material of the insulation layer 201 includes either glass fiber or aerogel.

[0075] Understandably, fiberglass is a common thermal insulation material with good thermal insulation properties and mechanical strength. Aerogel is an ultralight material with good thermal insulation properties and mechanical strength.

[0076] In some embodiments, such as Figure 9 As shown, the first protective layer 202 and the second protective layer 203 have the same thickness.

[0077] It is understandable that the first protective layer 202 and the second protective layer 203 have the same thickness to ensure the symmetry and uniformity of the insulation structure 200, reduce the concentration of thermal stress caused by uneven thickness, extend the service life of the insulation structure 200 and the insulation effect of the engine.

[0078] In some embodiments, such as Figure 9 As shown, the thickness of the insulation structure 200 ranges from 10 to 12 mm, which ensures the heat insulation effect while avoiding excessive increase in volume and weight, thus improving the compactness of the engine.

[0079] For example, the first protective layer 202, the heat insulation layer 201 with a thickness of more than 12 mm and the second protective layer 203 are pressed together until the thickness of the heat insulation structure 200 is in the range of 10 to 12 mm.

[0080] In some embodiments, such as Figures 3 to 8 As shown, the insulation structure 200 has clearance holes 212. The engine also includes peripheral accessories, which are disposed on the engine body 100 and extend through the clearance holes 212 to the outside of the insulation structure 200. It should be noted that the number, shape, and distribution of clearance holes 212 can be designed according to actual needs, and this embodiment does not impose specific limitations on them.

[0081] It should be noted that peripheral accessories include, but are not limited to, thermostats, water pumps, radiators, pipes, and cooling fans. For example, for small peripheral accessories such as pipes and connectors, the clearance hole 212 and the peripheral accessory can correspond to the interface shape of the engine body 100; for peripheral accessories connected to the engine body 100 via bolts or other fasteners, the clearance hole 212 can correspond to the space occupied by the fasteners; for large peripheral accessories such as thermostats, the clearance hole 212 and the mating surface of the peripheral accessory can correspond, so that the surface of the engine body 100 not connected to the peripheral accessories is covered by the insulation structure 200 as much as possible.

[0082] Understandably, the clearance hole 212 maximizes the insulation effect and reduces heat loss without affecting the normal operation of the external accessories. Simultaneously, the portion of the external accessories protruding from the outer wall can be used to limit the insulation structure 200, improving the overall structural stability of the engine, reducing space occupation, and facilitating the installation and maintenance of the external accessories.

[0083] For example, such as Figures 3 to 8 As shown, each outer wall surface of the engine body 100 is provided with peripheral accessories, and multiple covering plates 210 are provided with clearance holes 212.

[0084] This application also provides a vehicle. The vehicle includes the engine described above.

[0085] According to the embodiments of this application, the vehicle is fully covered by the thermal insulation structure 200 on the outer peripheral surface of the engine body 100, thereby optimizing the overall performance and energy consumption of the vehicle in cold environments.

[0086] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0087] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0088] In the description of this application, it should be understood that the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. The terms "parallel," "perpendicular," and "equal" include the described situation and situations that are similar to the described situation, within an acceptable deviation range, wherein the acceptable deviation range is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range for approximate parallelism can be, for example, a deviation within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, wherein the acceptable deviation range for approximate perpendicularity can also be, for example, a deviation within 5°. "Equal" includes absolute equality and approximate equality, wherein the acceptable deviation range for approximate equality can be, for example, a difference between two equal entities less than or equal to 5% of either one. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0089] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0090] In the description of this application, "multiple" means two or more.

[0091] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0092] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0093] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0094] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An engine, characterized in that, include: The engine body (100) has multiple outer wall surfaces, which are connected to form the outer peripheral surface of the engine body (100); Thermal insulation structure (200) is disposed outside the plurality of outer wall surfaces to cover the outer peripheral surface of the engine body (100).

2. The engine according to claim 1, characterized in that, The thermal insulation structure (200) is shaped to the outer peripheral surface of the engine.

3. The engine according to claim 1, characterized in that, The thermal insulation structure (200) is respectively attached to each of the outer wall surfaces; and / or The thermal insulation structure (200) and the engine body (100) are threaded together.

4. The engine according to any one of claims 1 to 3, characterized in that, The thermal insulation structure (200) includes multiple covering sheets (210), and each covering sheet (210) corresponds to one of the outer wall surfaces.

5. The engine according to claim 4, characterized in that, The covering sheet (210) is at least partially conformally attached to the corresponding outer wall surface.

6. The engine according to claim 4, characterized in that, At least some of the covering sheets (210) are snapped together; and / or At least some of the covering sheets (210) are threaded together; and / or At least a portion of the covering sheet (210) and the corresponding outer wall surface are threaded together.

7. The engine according to any one of claims 1 to 3, characterized in that, The thermal insulation structure (200) includes: Thermal insulation layer (201); The heat insulation layer (201) is provided with a first protective layer (202) and a second protective layer (203) on both sides, and the first protective layer (202) is provided close to the outer wall surface.

8. The engine according to claim 7, characterized in that, The thermal conductivity of the insulation layer (201) is not greater than 0.05 W / (m·K); and / or The insulation layer (201) is made of either glass fiber or aerogel; and / or The first protective layer (202) and the second protective layer (203) have the same thickness.

9. The engine according to any one of claims 1 to 3, characterized in that, The thickness of the insulation structure (200) ranges from 10 to 12 mm.

10. The engine according to any one of claims 1 to 3, characterized in that, The insulation structure (200) has a clearance hole (212), and the engine also includes: The peripheral accessory is disposed on the engine body (100) and extends through the clearance hole (212) to the outside of the insulation structure (200).

11. A vehicle, characterized in that, Includes the engine as described in any one of claims 1 to 10.