Molding structure and cooling structure of engine

Abstract

The utility model provides a forming structure and a cooling structure of an engine. The forming structure comprises a first mold core and a second mold core, and at least part of the first mold core and at least part of the second mold core are arranged in a spaced mode. A circulation channel is formed in the shell sleeve piece; the fixing piece is connected with the shell sleeve piece and avoids the circulation channel. One side of the fixing piece is connected with the first mold core, and the other side of the fixing piece is connected with the second mold core; and the two ends of the circulation channel are arranged opposite to the first mold core and the second mold core correspondingly, so that when the molding structure is subjected to casting molding, the two ends of the circulation channel communicate with a first cooling channel formed after the first mold core is poured, melted and discharged and a second cooling channel formed after the second mold core is poured, melted and discharged correspondingly. According to the technical scheme, the technical problem that in the prior art, a forming structure used for forming the cooling structure of the engine is prone to displacement in the forming process can be solved.

Description

Technical Field

[0001] This utility model relates to the field of molding structure technology, and more specifically, to a molding structure and an engine cooling structure. Background Technology

[0002] Currently, in order to improve the compactness of engine structure, engine structures typically adopt a cylinder liner-less block structure, and tend to reduce the cylinder center distance during the design process to achieve a more compact design and reduce weight.

[0003] However, the cavity structures such as cooling water channels in the engine body are usually cast using sand core structures. With the continuous pursuit of lightweight and compactness in engine design, the reduction of cylinder center distance and the reduction of inter-cylinder wall thickness make it easy for the sand core to shift during the casting process of high-temperature medium, which in turn causes defects such as uneven wall thickness. Utility Model Content

[0004] The main objective of this invention is to provide a molding structure and an engine cooling structure to solve the technical problem that the molding structure used to form the engine cooling structure in the prior art is prone to displacement during the molding process.

[0005] To achieve the above objectives, according to one aspect of the present invention, a molding structure is provided, comprising:

[0006] A first core and a second core, wherein at least a portion of the first core and at least a portion of the second core are spaced apart;

[0007] The shell assembly and the fastener have a flow channel inside the shell assembly; the fastener is connected to the shell assembly and avoids the flow channel; one side of the fastener is connected to the first core and the other side of the fastener is connected to the second core.

[0008] The two ends of the flow channel are respectively positioned opposite to the first core and the second core, so that when the molding structure is cast, the two ends of the flow channel are connected to the first cooling channel formed after the first core is cast and melted and discharged, and the second cooling channel formed after the second core is cast and melted and discharged.

[0009] Furthermore, the interval between at least a portion of the first core and at least a portion of the second core forms a plurality of cavities, the plurality of cavities being arranged along a predetermined direction, and the shell assembly and the fastener being disposed at the communication point between two adjacent cavities; and / or,

[0010] The first core has a first protrusion and a first recess that are connected to each other, and the second core has a second protrusion and a second recess that are connected to each other. The first protrusion and the second protrusion are opposite to each other and spaced apart, and the first recess and the second recess are opposite to each other and spaced apart. The housing and the fastener are both disposed between the first recess and the second recess.

[0011] Furthermore, the fasteners include:

[0012] The main body extends along the extension direction of the shell assembly;

[0013] The protruding claw portion protrudes from the main body portion and is used to be embedded in the first core and / or the second core.

[0014] Furthermore, there are at least two protruding claws, one of which is located on one side of the main body and the other on the other side of the main body; and / or,

[0015] One side of the main body protrudes from the shell assembly, and the other side also protrudes from the shell assembly; and / or,

[0016] The housing kit is located on one side of the fastener; the claw protrudes toward the side of the main body away from the housing kit.

[0017] Furthermore, the housing kit is provided with a mounting groove, and at least a portion of the main body is embedded in the mounting groove; the housing kit is located on one side of the fastener.

[0018] Furthermore, along the direction from the shell assembly to the fastener, the ratio of the height h of the shell assembly to the height H of the fastener is greater than or equal to 3 and less than or equal to 6; and / or,

[0019] The shell assembly includes a first side shell and a second side shell arranged opposite to each other, as well as a third side shell and a fourth side shell arranged opposite to each other. The first side shell, the third side shell, the second side shell and the fourth side shell are connected in sequence to form a flow channel. The mounting groove is provided on the fourth side shell. The first side shell and the second side shell both protrude from the main body.

[0020] Furthermore, along the extension direction of the shell assembly, the shape of the cross-section of the flow channel remains unchanged; and / or,

[0021] Along the extension direction of the shell assembly, the cross-sectional size of the flow channel remains unchanged; and / or,

[0022] Along the extension direction of the shell assembly, the cross-section of the flow channel is a rounded rectangle.

[0023] Furthermore, the shell assembly has a cuboid structure; the ratio of the shell assembly's height h to its width b is greater than or equal to 2 and less than or equal to 6; and / or,

[0024] Both the fasteners and the shell assembly are integrally molded structures.

[0025] Furthermore, both the fasteners and the housing are made of high-temperature resistant materials; or, the outer surfaces of the housing and the fasteners are coated with a high-temperature resistant coating.

[0026] According to another aspect of the present invention, a cooling structure for an engine is provided, formed by molding the above-mentioned molding structure, the cooling structure comprising:

[0027] The main body has a first cooling channel and a second cooling channel;

[0028] The housing and fasteners have a flow channel inside the housing; the fasteners are connected to the housing and are configured to avoid conflict with the flow channel.

[0029] One side of the fixing member is located in the first cooling channel, and the other side of the fixing member is located in the second cooling channel; the two ends of the flow channel are respectively connected to the first cooling channel and the second cooling channel.

[0030] By applying the technical solution of this utility model, a shell assembly is set between the first and second cores, and a flow channel is reserved inside the shell assembly. This ensures that the flow channel can communicate with the first and second cooling channels after casting, thereby improving the flow of coolant between the first and second cooling channels. Consequently, this enhances the inter-cylinder cooling effect of the engine, helping the engine maintain a stable operating temperature under high load. The design of the fixing component not only defines the position of the flow channel through its connection with the shell assembly, but also effectively prevents the displacement of the sand cores on both sides during the casting process through its connection with the first and second cores. This ensures the shape and dimensional accuracy of the cooling channels and achieves stable fixing of the sand cores in the casting process, avoiding problems such as reduced cooling effect and uneven wall thickness caused by sand core displacement. In this way, the problems of sand core displacement and cooling channel connectivity can be solved in the casting stage, reducing the dependence on post-processing processes, such as reducing the need for additional processing of the cooling channels, simplifying the post-processing of castings, reducing production costs, and improving production efficiency. Therefore, the technical solution of this utility model can solve the technical problem in the prior art that the molding structure used to form the cooling structure of the engine is prone to displacement during the molding process. Attached Figure Description

[0031] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0032] Figure 1 A schematic diagram of the molding structure provided according to Embodiment 1 of the present invention is shown;

[0033] Figure 2 A schematic diagram of a portion of the molding structure provided according to Embodiment 1 of the present invention is shown;

[0034] Figure 3 A front view of a portion of the molding structure provided according to Embodiment 1 of the present invention is shown;

[0035] Figure 4 A side view of a portion of the molding structure provided according to Embodiment 1 of the present invention is shown;

[0036] Figure 5 A schematic diagram of the cooling structure of an engine according to Embodiment 2 of the present invention is shown.

[0037] The above figures include the following reference numerals:

[0038] 10. First core;

[0039] 11. The first cooling channel; 101. The first convex part; 102. The first concave part;

[0040] 20. Second type of core;

[0041] 21. Second cooling channel; 201. Second convex portion; 202. Second concave portion;

[0042] 30. Shell kit;

[0043] 31. Distribution channels;

[0044] 301. First side shell; 302. Second side shell; 303. Third side shell; 304. Fourth side shell;

[0045] 40. Fasteners;

[0046] 41. Main body part; 42. Claw part;

[0047] 50. Cavity;

[0048] 60. Ontology department. Detailed Implementation

[0049] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0050] like Figures 1 to 4As shown, Embodiment 1 of this utility model provides a molding structure, which includes a first core 10 and a second core 20, with at least a portion of the first core 10 and at least a portion of the second core 20 spaced apart. The molding structure also includes a shell assembly 30 and a fixing member 40. The shell assembly 30 has a flow channel 31; the fixing member 40 is connected to the shell assembly 30 and avoids the flow channel 31; one side of the fixing member 40 is connected to the first core 10, and the other side is connected to the second core 20. The two ends of the flow channel 31 are respectively positioned opposite to the first core 10 and the second core 20, so that during the casting molding of the molding structure, the two ends of the flow channel 31 are connected to the first cooling channel 11 formed after the first core 10 is poured and melted, and the second cooling channel 21 formed after the second core 20 is poured and melted.

[0051] The molding structure provided in Embodiment 1 of this utility model, by setting a shell assembly 30 between the first core 10 and the second core 20, and reserving a flow channel 31 inside the shell assembly 30, ensures that after casting, the flow channel 31 can communicate with the first cooling channel 11 and the second cooling channel 21, thereby improving the flow of coolant between the first cooling channel 11 and the second cooling channel 21, and thus enhancing the inter-cylinder cooling effect of the engine, helping the engine maintain a stable operating temperature under high load. The design of the fixing member 40 not only defines the position of the flow channel 31 through its connection with the shell assembly 30, but also effectively avoids the displacement of the sand cores on both sides during the casting process through its connection with the first core 10 and the second core 20, ensuring the shape and dimensional accuracy of the cooling channel, and achieving stable fixing of the sand core in the casting process, avoiding problems such as reduced cooling effect and uneven wall thickness caused by sand core displacement. In this way, the problems of sand core displacement and cooling channel connectivity can be solved during the casting stage, reducing reliance on post-processing techniques, such as the need for additional machining of cooling channels, simplifying the post-processing of castings, lowering production costs, and improving production efficiency. Therefore, the molding structure provided in this embodiment can solve the technical problem in the prior art where the molding structure used to form the cooling structure of an engine is prone to displacement during the molding process.

[0052] Specifically, both the first core 10 and the second core 20 are sand core structures.

[0053] Specifically, "the two ends of the flow channel 31 are respectively set opposite to the first core 10 and the second core 20" means that one end of the flow channel 31 is set opposite to the first core 10 and the other end is set opposite to the second core 20.

[0054] Specifically, the interval between at least a portion of the first core 10 and at least a portion of the second core 20 forms a plurality of cavities 50. These cavities 50 are arranged along a predetermined direction, and the shell assembly 30 and the fixing member 40 are both located at the connection points between adjacent cavities 50. This structural arrangement allows the cylinder bores of the engine to be formed through the cavities 50. The placement of the shell assembly 30 and the fixing member 40 at the connection points between adjacent cavities 50 not only ensures smooth flow of coolant but also, through the action of the fixing member 40 during the casting process, restricts the displacement of the first core 10 and the second core 20, ensuring the geometric accuracy and wall thickness uniformity of the formed cooling channels, thereby improving the quality of the casting and the reliability of the engine.

[0055] Specifically, there are at least two shell kits 30 and at least two fasteners 40, and at least two shell kits 30 and at least two fasteners 40 are provided in a one-to-one correspondence.

[0056] Specifically, the first core 10 has a first protrusion 101 and a first recess 102 connected to each other, and the second core 20 has a second protrusion 201 and a second recess 202 connected to each other. The first protrusion 101 and the second protrusion 201 are opposite to each other and spaced apart, and the first recess 102 and the second recess 202 are opposite to each other and spaced apart. The shell assembly 30 and the fixing member 40 are both disposed between the first recess 102 and the second recess 202. In this way, the shell assembly 30 and the fixing member 40 are disposed between the first recess 102 and the second recess 202, and are precisely fixed by utilizing the natural position of the recesses, which further enhances the stability of the first core 10 and the second core 20 and ensures the accurate forming of the cooling water channel.

[0057] Specifically, the first core 10 is formed by alternating connections of at least two first protrusions 101 and at least two first recesses 102. The second core 20 is formed by alternating connections of at least two second protrusions 201 and at least two second recesses 202.

[0058] In this embodiment, the fixing member 40 includes a main body 41 and a protruding claw 42. The main body 41 extends along the extension direction of the shell assembly 30. The protruding claw 42 protrudes from the main body 41 and is used to be embedded within the first core 10 and / or the second core 20. With this structural arrangement, the main body 41 extends along the extension direction of the shell assembly 30, ensuring stable support of the fixing member 40 between the sand cores and helping to maintain the correct position of the sand cores. The protruding claw 42 can be deeply embedded inside the first core 10 and / or the second core 20, providing additional mechanical fixing points, significantly enhancing the stability of the sand cores during the casting process, effectively preventing displacement of the sand cores, thereby ensuring the accurate geometric dimensions of the formed cooling channel, improving the cooling effect and overall quality of the casting.

[0059] Specifically, the main body 41 is a strip structure.

[0060] Specifically, there are at least two protruding claw portions 42, one of which is located on one side of the main body portion 41 and the other on the other side. This structural arrangement, with at least two protruding claw portions 42, allows the fixing member 40 to simultaneously provide a fixing function for the first core 10 and the second core 20, increasing the reliability and stability of the contact between the fixing member 40 and the sand core. This symmetrical fixing method helps balance the forces on both sides of the sand core, reducing the risk of sand core tilting or displacement caused by unilateral fixing, ensuring the symmetry and consistency of the cooling channel during the pouring process, and further improving the cooling effect and the accuracy of the casting.

[0061] Specifically, one side of the main body 41 protrudes from the shell assembly 30, and the other side also protrudes from the shell assembly 30. This structural arrangement allows the fixing member 40 to not only provide support between the first core 10 and the second core 20, but also to form a connection between them, enhancing the overall fixing effect of the fixing member 40. Especially for thin-walled sand cores, it provides necessary reinforcement and positioning, preventing deformation or displacement of the sand core under the impact of high-temperature molten iron, thereby ensuring the accurate formation of the cooling channel and the quality of the casting.

[0062] Specifically, the shell assembly 30 is located on one side of the fixing member 40; the protruding claw portion 42 protrudes towards the main body 41 on the side away from the shell assembly 30. This increases the fixing depth of the fixing member 40 within the sand core, allowing for selection of the optimal embedding position based on the specific shape and size of the sand core, thus improving the adaptability and flexibility of the fixing member 40. Simultaneously, the protruding claw portion 42 on the side away from the shell assembly 30 avoids interference between the claw portion 42 and the shell assembly 30, ensuring the flow of the cooling channel and the fixing effect of the sand core, thus guaranteeing the stability of the sand core and the reliability of the cooling channel during the casting process.

[0063] In this embodiment, the shell assembly 30 is provided with a mounting groove, and at least a portion of the main body 41 is embedded in the mounting groove; the shell assembly 30 is located on one side of the fixing member 40. This structural arrangement, by providing a mounting groove on the shell assembly 30 and embedding a portion of the main body 41 within it, ensures a secure connection between the shell assembly 30 and the fixing member 40, enhancing the stability of the entire cooling structure. The embedded connection reduces relative movement between the fixing member 40 and the shell assembly 30, avoiding potential cooling channel deformation or sand core displacement problems caused by poor contact during casting, thereby ensuring the geometric accuracy of the cooling channel and the quality of the casting.

[0064] Specifically, such as Figure 4As shown, along the direction from the shell assembly 30 to the fixing member 40, the ratio of the height h of the shell assembly 30 to the height H of the fixing member 40 is greater than or equal to 3 and less than or equal to 6. This ratio, set between 3 and 6, balances coolant flow efficiency with sand core stability. The higher height h of the shell assembly 30 provides sufficient space to ensure smooth coolant flow, while the matching height H of the fixing member 40 ensures stable support of the fixing member 40 within the sand core gap, preventing sand core displacement. This design ensures both efficient cooling of the cooling channel and stability of the sand core during casting, improving the cooling effect and overall quality of the casting.

[0065] Specifically, the shell assembly 30 includes a first side shell 301 and a second side shell 302 arranged opposite to each other, and a third side shell 303 and a fourth side shell 304 arranged opposite to each other. The first side shell 301, the third side shell 303, the second side shell 302, and the fourth side shell 304 are connected in sequence to form a flow channel 31. A mounting groove is provided on the fourth side shell 304. Both the first side shell 301 and the second side shell 302 protrude from the main body 41. With this structural arrangement, the mounting groove on the fourth side shell 304 not only ensures a firm connection between the main body 41 and the shell assembly 30, but also provides additional guidance and support for the inflow and outflow of coolant by the fact that both the first side shell 301 and the second side shell 302 protrude from the main body 41. This allows the coolant to pass through the flow channel 31 with minimal resistance, optimizing the flow path and efficiency of the coolant. At the same time, it reduces the risk of displacement of the sand core during the casting process, ensuring accurate forming of the cooling channel and high quality of the casting.

[0066] In this embodiment, the shape of the cross-section of the flow channel 31 remains unchanged along the extending direction of the housing assembly 30. This ensures uniform distribution and stable flow of coolant within the flow channel 31, avoiding increased flow resistance or uneven cooling due to changes in cross-section. The coolant can pass through the flow channel 31 at a constant flow rate and pressure, thereby improving cooling efficiency, ensuring uniform cooling of the engine block at operating temperatures, reducing thermal stress and deformation, and enhancing engine reliability and service life.

[0067] Specifically, the cross-sectional size of the flow channel 31 remains constant along the extension direction of the housing assembly 30. This ensures uniform distribution and stable flow of coolant within the flow channel 31, avoiding increased flow resistance or uneven cooling due to changes in cross-section. The coolant can pass through the flow channel 31 at a constant flow rate and pressure, thereby improving cooling efficiency, ensuring uniform cooling of the engine block at operating temperatures, reducing thermal stress and deformation, and enhancing engine reliability and service life.

[0068] Specifically, along the extension direction of the housing assembly 30, the cross-section of the flow channel 31 is a rounded rectangle. This structural design not only provides a larger coolant flow area but also reduces turbulence and resistance during coolant flow, resulting in smoother and more stable coolant flow and improved heat dissipation efficiency. The rounded corner design also reduces stress concentration on the inner wall of the flow channel 31, extending its service life.

[0069] Specifically, such as Figure 4 As shown, the shell assembly 30 has a cuboid structure; the ratio of the height h of the shell assembly 30 to its width b is greater than or equal to 2 and less than or equal to 6. This structural design optimizes the structural stability of the shell assembly 30 and the flow efficiency of the coolant. The greater height provides a larger flow channel 31, which helps to increase the cooling effect, while the width design ensures stable support of the shell assembly 30 in the sand core gap, avoiding displacement during the casting process. This proportional design considers both the efficient heat dissipation of the flow channel 31 and the structural strength and stability of the shell assembly 30, improving the cooling performance and reliability of the casting.

[0070] Specifically, both the fastener 40 and the shell assembly 30 are integrally molded structures.

[0071] In this embodiment, both the fastener 40 and the shell assembly 30 are made of high-temperature resistant materials; alternatively, the outer surfaces of both the shell assembly 30 and the fastener 40 are coated with a high-temperature resistant coating. This structural arrangement, with the fastener 40 and shell assembly 30 made of high-temperature resistant materials or coated with a high-temperature resistant coating, ensures the structural stability and durability of these components during high-temperature casting, preventing deformation or damage caused by high temperatures, thereby guaranteeing the accurate forming of the cooling channel. The use of high-temperature resistant materials and coatings also reduces heat transfer to the shell assembly 30 and the fastener 40, lowering the risk of sand core displacement due to thermal expansion differences, ensuring the geometric accuracy of the cooling channel and the quality of the casting, while extending the service life of the cooling structure.

[0072] like Figure 5 As shown, Embodiment 2 of this utility model provides a cooling structure for an engine, formed by molding the structure provided in Embodiment 1. The cooling structure includes a body portion 60, a shell assembly 30, and a fixing member 40. The body portion 60 has a first cooling channel 11 and a second cooling channel 21. The shell assembly 30 has a flow channel 31. The fixing member 40 is connected to the shell assembly 30 and avoids the flow channel 31. One side of the fixing member 40 is located in the first cooling channel 11, and the other side of the fixing member 40 is located in the second cooling channel 21. The two ends of the flow channel 31 are respectively connected to the first cooling channel 11 and the second cooling channel 21.

[0073] The engine cooling structure provided in Embodiment 2 of this utility model, by adopting the molding structure in Embodiment 1, ensures the optimized layout of the first cooling channel 11 and the second cooling channel 21 in the cooling structure, allowing the coolant to more evenly cover the key heat source areas of the engine block. This layout not only enhances the heat exchange efficiency of the coolant but also effectively controls the engine's operating temperature, avoiding local overheating and improving the engine's thermal stability and operating efficiency. The design of the fixing member 40 not only defines the position of the flow channel 31 through its connection with the shell assembly 30 but also effectively prevents the displacement of the sand cores on both sides during the casting process through its connection with the first core 10 and the second core 20, ensuring the shape and dimensional accuracy of the cooling channel. This achieves stable fixing of the sand core in the casting process, avoiding problems such as reduced cooling effect and uneven wall thickness caused by sand core displacement. The two ends of the flow channel 31 are connected to the first cooling channel 11 and the second cooling channel 21 respectively, forming a continuous coolant circulation path. During circulation, the coolant can efficiently flow between multiple cooling channels through the flow channel 31, enhancing the coolant's fluidity and improving cooling efficiency. This design also prevents coolant from stagnating in certain areas, reducing heat accumulation and further improving the engine's thermal management capabilities. Therefore, the engine cooling structure provided in this embodiment can solve the technical problem in the prior art where the molded structure used to form the engine's cooling structure is prone to displacement during the molding process.

[0074] It should be noted that "the two ends of the flow channel 31 are respectively connected to the first cooling channel 11 and the second cooling channel 21" means that one end of the flow channel 31 is connected to the first cooling channel 11 and the other end is connected to the second cooling channel 21.

[0075] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0076] 1. Improved Cooling Efficiency and Uniformity: By optimizing the layout and flow path design of the cooling channels, especially by using rounded rectangular cross-sections and constant size and shape, this solution significantly improves the flow efficiency and uniformity of the coolant. The coolant can flow more stably in the key areas of the engine block, effectively carrying away heat, avoiding localized overheating, and significantly improving the overall thermal management capability of the engine;

[0077] 2. Enhanced structural stability: Effectively prevents displacement of the sand core during the casting process, ensures the geometric dimensional accuracy of the cooling channel, and improves the casting quality and reliability of the engine cylinder block;

[0078] 3. Optimize manufacturing process: The ingenious use of hollow core support (shell kit 30) avoids the complicated process of cross-drilling sand core by reserving water jacket between cylinders, simplifies the casting process, reduces the amount of subsequent processing work, lowers manufacturing costs, and at the same time maintains the connectivity and cooling effect of the cooling channel.

[0079] 4. Enhanced adaptability of the cooling structure: Through the rational design of the size ratio of the shell kit 30 and the fastener 40, this solution can adapt to engines of different models and sizes, thereby improving the versatility of the cooling structure and its market application prospects.

[0080] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0081] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0082] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0083] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0084] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0085] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A shaped structure, characterized by, The application relates to a shell structure and a fixing structure. The shell structure comprises a first core (10) and a second core (20), at least part of the first core (10) and at least part of the second core (20) are arranged in a spaced manner; The shell structure comprises a shell assembly (30) and a fixing assembly (40), the shell assembly (30) is provided with a flow channel (31) inside; the fixing assembly (40) is arranged in connection with the shell assembly (30) and is arranged in mutual avoidance with the flow channel (31); one side of the fixing assembly (40) is connected with the first core (10), and the other side of the fixing assembly (40) is connected with the second core (20); The two ends of the flow channel (31) are arranged in opposite positions of the first core (10) and the second core (20) respectively, so that, when the shell structure is subjected to injection molding, the two ends of the flow channel (31) are communicated with a first cooling channel (11) formed after the first core (10) is subjected to injection molding and melting and discharge and a second cooling channel (21) formed after the second core (20) is subjected to injection molding and melting and discharge.

2. The shaped structure of claim 1, wherein, The space between at least part of the first core (10) and at least part of the second core (20) forms a plurality of cavities (50), the plurality of cavities (50) are arranged in a preset direction, and the shell assembly (30) and the fixing assembly (40) are arranged at the communication positions between two adjacent cavities (50); and / or The first core (10) is provided with a first convex part (101) and a first concave part (102) connected with each other, the second core (20) is provided with a second convex part (201) and a second concave part (202) connected with each other, the first convex part (101) and the second convex part (201) are arranged in opposite and spaced positions, the first concave part (102) and the second concave part (202) are arranged in opposite and spaced positions, and the shell assembly (30) and the fixing assembly (40) are arranged between the first concave part (102) and the second concave part (202).

3. The shaped structure of claim 1, wherein, The fixing assembly (40) comprises: A main body part (41) which is arranged in extension along the extension direction of the shell assembly (30); A convex claw part (42) which is arranged in protrusion from the main body part (41) and is used for being embedded in the first core (10) and / or the second core (20).

4. The shaped structure of claim 3, wherein, The convex claw part (42) is at least two, one of the at least two convex claw parts (42) is arranged at one side of the main body part (41), and the other is arranged at the other side of the main body part (41); and / or One side of the main body part (41) is arranged in protrusion from the shell assembly (30), and the other side is also arranged in protrusion from the shell assembly (30); and / or The shell assembly (30) is located at one side of the fixing assembly (40); and the convex claw part (42) is arranged in protrusion towards the side of the main body part (41) which is away from the shell assembly (30).

5. The shaped structure of claim 3, wherein, The shell assembly (30) is provided with a mounting groove, and at least part of the main body part (41) is embedded in the mounting groove; and the shell assembly (30) is located at one side of the fixing assembly (40).

6. The shaped structure of claim 5, wherein, The ratio of the height h of the shell set (30) to the height H of the fixing part (40) is greater than or equal to 3 and less than or equal to 6 in the direction from the shell set (30) to the fixing part (40); and / or, The shell set (30) comprises oppositely arranged first and second side shells (301) and (302) and oppositely arranged third and fourth side shells (303) and (304), which are sequentially connected to enclose the flow passage (31); the mounting groove is arranged on the fourth side shell (304); and the first and second side shells (301) and (302) are arranged protruding from the main body part (41).

7. The shaped structure of any one of claims 1 to 6, wherein, The shape of the cross section of the flow passage (31) is constant in the extension direction of the shell set (30); and / or, The size of the cross section of the flow passage (31) is constant in the extension direction of the shell set (30); and / or, The cross section of the flow passage (31) is a rounded rectangle in the extension direction of the shell set (30).

8. The shaped structure of any one of claims 1 to 6, wherein, The shell set (30) is a cuboid structure; the ratio of the height h of the shell set (30) to the width b of the shell set (30) is greater than or equal to 2 and less than or equal to 6; and / or, The fixing part (40) and the shell set (30) are integrally formed structures.

9. The shaped structure of any one of claims 1 to 6, wherein, The fixing part (40) and the shell set (30) are made of high-temperature-resistant materials; or the outer surfaces of the shell set (30) and the fixing part (40) are coated with high-temperature-resistant coatings.

10. A cooling structure of an engine, characterized by, The cooling structure is formed by forming the formed structure of any one of claims 1 to 9, and comprises: a body part (60) having a first cooling passage (11) and a second cooling passage (21); a shell set (30) having a flow passage (31) therein and a fixing part (40) arranged in connection with the shell set (30) and avoiding the flow passage (31); wherein one side of the fixing part (40) is located in the first cooling passage (11) and the other side of the fixing part (40) is located in the second cooling passage (21); and the two ends of the flow passage (31) are in communication with the first and second cooling passages (11) and (21), respectively.

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