Cast integrated heat shield pressing shell structure
By integrating the heat insulation cover with the pressure shell into a single design, and using aluminum materials and casting processes, the problems of easy cracking and high cost of independent heat insulation covers are solved, achieving better heat insulation effect and cost reduction.
Patent Information
- Application Number
- CN202520159484.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2035-01-23
AI Technical Summary
Existing freestanding heat shields have complex structures, are prone to cracking, are costly, and have poor heat insulation performance.
The heat insulation cover and the pressure shell are integrated into one piece, made of aluminum and manufactured through a casting process. Combined with the shielding extension and reinforcing ribs, the connection strength and heat insulation effect are ensured.
The simplified structure reduces production costs, avoids the risk of cracking, improves heat insulation, and keeps the temperature of the electronic actuator below 160℃.
Smart Images
Figure CN223562917U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a booster technology field, specifically, relate to a cast integrated heat shield shell structure. BACKGROUND
[0002] At present, the highest temperature that electric control executor can work stably is 160 DEG C, but the temperature of waste gas in volute shell reaches 950 DEG C and above, thus, most projects usually adopt the mode of adding independent heat shield on the shell body to protect electric control executor, so that the temperature does not become too high. Its defects are: independent heat shield is a steel plate stamping part, and the steel plate stamping part has local tearing zone itself, and the independent heat shield is prone to cracking or breaking during the durability test process;The steel plate density is relatively large, and the independent heat shield is relatively heavy, which reduces the system mode;The heat conduction coefficient of the steel plate is far more than that of aluminum material, which leads to poor heat insulation effect;The installation of independent heat shield needs corresponding fastener, independent tooling and assembly process, and the production of independent heat shield needs separate mold, which greatly increases the cost required for the heat insulation of electric control executor. SUMMARY
[0003] The technical problem to be solved by the utility model is that the existing independent heat shield has complex structure, is prone to cracking and has high cost;In order to overcome the defects of the prior art, the utility model provides an integrated heat shield and shell body, which is simple in production and structure, reduces unnecessary fastening screws and assembly process, is not prone to cracking or breaking, reduces production cost, and ensures the heat insulation effect of electric control executor.
[0004] For the purpose of the utility model, the following technical scheme is adopted:
[0005] A cast integrated heat shield shell structure, comprising a volute body, a shell, an electric control executor and a connecting rod;The shell is installed on the volute body;The electric control executor is installed on the shell;The shell is integrally formed with a heat shield extending radially outward, the heat shield is arranged between the electric control executor and the volute body, and the heat shield is used for blocking the heat radiation from the volute body;One end of the connecting rod is movably connected with the electric control executor, and the other end of the connecting rod is movably connected with the volute body, and the heat shield is provided with shielding extension parts on both sides of the connecting rod. The above structure integrates the heat shield and the shell into an integrated type, achieves the heat insulation effect of the electric control executor, is simple in structure, reduces unnecessary fastening screws and assembly process, avoids the risk of cracking or breaking of the independent heat shield during the durability process, reduces the cost, and makes the structure more reasonable by combining the shielding extension parts, and further ensures the heat insulation effect.
[0006] As preferred, the volute body comprises a volute and an intermediate shell; the intermediate shell is mounted between the volute and the pressure shell, and the volute and the intermediate shell are fixedly connected through a clamp, and the intermediate shell and the pressure shell are fixedly connected through a first bolt. The structure of the clamp and the first bolt can further improve the connection strength and stability.
[0007] As preferred, the heat shield is arranged at the flange where the pressure shell and the intermediate shell are matched, the heat shield is located close to the connecting rod side, and the heat shield is a heat shield plate extending radially outward along the flange. The above structure is arranged at the flange, which is convenient for production and manufacturing, and also facilitates the blocking of heat radiation of the volute body, while occupying less space in the form of a plate, and the structure is more rationalized.
[0008] As preferred, the shielding extension is an extension plate arranged at the radially outermost side of the heat shield, and the extension plates on both sides form a recess for the connecting rod to pass through. The above shielding extension is convenient for production and manufacturing in the form of an extension plate, and the structure is more rationalized, further ensuring the shielding effect, and the recess formed prevents the connecting rod from interfering with the heat shield during movement.
[0009] As preferred, a reinforcing rib is further arranged between the heat shield and the pressure shell. The reinforcing rib further ensures the connection strength and stability between the heat shield and the pressure shell.
[0010] As preferred, the reinforcing ribs are arranged at both ends of the heat shield and the middle of the heat shield. The arrangement of multiple reinforcing ribs further improves the overall connection strength and stability.
[0011] As preferred, an actuator rocker is rotatably connected to the electric control actuator, and the electric control actuator drives the actuator rocker to rotate; a waste gas valve rocker is arranged on the volute body; one end of the connecting rod is fixedly connected to the actuator rocker, and the other end of the connecting rod is fixedly connected to the waste gas valve rocker. When the electric control actuator works, the electric control actuator drives the connecting rod to move through the actuator rocker, the connecting rod passes through the heat shield, and then drives the waste gas valve rocker to rotate, finally adjusting the exhaust amount of the volute bypass valve.
[0012] As preferred, the electric control actuator is fixedly arranged on the pressure shell through a second screw. The above-mentioned form through the second screw is convenient for disassembly and assembly, and can also ensure the stability after connection.
[0013] As preferred, the pressure shell is made of aluminum material. The aluminum material has a low thermal conductivity coefficient, and the heat insulation effect is better, so as to achieve the effect of heat insulation of the electric control actuator, and the temperature of the electric control actuator is below 160℃.
[0014] In summary, the utility model discloses the advantage is that the heat shield and the shell are integrated together, thereby reach the effect of heat insulation of electric control executor, do not have to specially design a independent heat shield, and the shell is equipped with the heat shield, and the structure is simpler, reduces unnecessary fastening screw and assembly process, avoids the risk of cracking or breaking of independent heat shield in the durability process, reduces the cost simultaneously. For the supercharger of mass production project, at least ten yuan cost of each supercharger product can be reduced, the heat shield has lower thermal conductivity through aluminum material, and the heat insulation effect is better, thereby reach the effect of heat insulation of electric control executor, make the temperature of electric control executor body below 160 DEG C, when electric control executor works, through executor rocker lever drive connecting rod movement, connecting rod passes through the heat shield's avoidance recess, and then drive exhaust valve rocker lever rotation, adjust the air output of volute bypass valve, through the shielding extension, make the structure more reasonable, further ensure the heat insulation effect. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the structure schematic diagram of the cast integrated heat shield shell structure (the first visual angle) of the utility model.
[0016] Figure 2 It is the structure schematic diagram of the cast integrated heat shield shell structure (the second visual angle) of the utility model.
[0017] Figure 3 It is the structure schematic diagram of the cast integrated heat shield shell structure (the second visual angle) of the utility model.
[0018] Figure 4 It is the structure schematic diagram of the shell and heat shield of the utility model.
[0019] EXPLANATION OF REFERENCE NUMERALS:
[0020] 1, volute body;10, exhaust valve rocker lever;11, volute;12, intermediate shell;2, shell;3, electric control executor;31, executor rocker lever;4, connecting rod;5, heat shield;51, extension plate;52, avoidance recess;53, reinforcing rib;6, clamp;7, first bolt;8, second screw. DETAILED DESCRIPTION
[0021] First, those skilled in the art should understand that these embodiments are only used to explain the technical principles of the embodiments of the application, and are not intended to limit the protection scope of the embodiments of the application. Those skilled in the art can adjust it as needed in order to adapt to specific application occasions.
[0022] In the description of the embodiments of the present application, it should be noted that unless specifically defined and limited otherwise, the terms "connected", "connected to", "connection" should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0023] In the embodiments of the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature can be above, above and above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature can be below, below and below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.
[0024] The present application will be further described in detail below in conjunction with the drawings and specific embodiments.
[0025] As shown in Figures 1 to 4 A cast integrated heat shield pressure shell structure, comprising a volute body 1, a pressure shell 2, an electric control actuator 3 and a connecting rod 4; the volute body 1 comprises a volute 11 and an intermediate shell 12; the intermediate shell 12 is installed between the volute 11 and the pressure shell 2, and the volute 11 and the intermediate shell 12 are fixedly connected through a clamp 6, and the intermediate shell 12 and the pressure shell 2 are fixedly connected through a first bolt 7. The detachable connection mode is realized through the clamp 6 and the first bolt 7, which is convenient for disassembly and maintenance, and at the same time the structure of the clamp 6 and the first bolt 7 can further improve the connection strength and stability between them. The electric control actuator 3 is fixedly arranged on the pressure shell 2 through a second screw 8. The above-mentioned form through the second screw 8 is convenient for disassembly, and at the same time can also ensure the stability after connection.
[0026] As shown in Figures 1 to 4As shown, the pressure shell 2 is made of aluminum material, which has a lower thermal conductivity coefficient, and the heat insulation effect is better, so as to achieve the heat insulation effect of the electric control actuator 3, and the temperature of the electric control actuator 3 is below 160℃. The heat shield 5 is integrally formed on the pressure shell 2 and extends outward. The heat shield 5 and the pressure shell 2 are combined into one part by casting, which can be suitable for conventional sand core casting pressure shell and high pressure casting pressure shell. The heat shield 5 is arranged between the electric control actuator 3 and the volute body 1; the heat shield 5 is used to block the heat radiation from the heat source volute body 1, and the heat shield 5 is made of aluminum material instead of steel plate, and the thermal conductivity coefficient of the steel plate is much higher than that of the aluminum material, and the heat insulation effect is not as good as that of the aluminum material. One end of the connecting rod 4 is movably connected with the electric control actuator 3, and the other end of the connecting rod 4 is movably connected with the volute body 1, and the heat shield 5 is provided with shielding extensions on both sides of the connecting rod 2. The above structure integrates the heat shield 5 and the pressure shell 2 into an integrated type, which achieves the heat insulation effect of the electric control actuator 3, and does not need to specially develop an independent heat shield 5, and the pressure shell 2 does not need to reserve a threaded hole for installing the independent heat shield 5, and does not need to assemble the pressure shell 2 and the independent heat shield 5 together, and the structure is simpler, reduces unnecessary fastening screws and assembly process, avoids the risk of cracking or breaking of the independent heat shield 5 during the durability process, and reduces the cost. In addition, the combination of the shielding extensions makes the structure more reasonable, and further ensures the heat insulation effect.
[0027] As shown in Figures 1 to 4 , the heat shield 5 is arranged at the flange where the pressure shell 2 cooperates with the intermediate shell 12, and the heat shield 5 is located near the connecting rod 4. The heat shield 5 of the present embodiment is a heat insulation plate extending radially outward along the flange, which is used to isolate the heat radiation from the volute 11 and the intermediate shell 12, thereby ensuring the stable operation of the electric control actuator 3. The above structure is arranged at the flange, which is convenient for production and manufacturing, and also facilitates the blocking of the heat radiation of the volute body 1, thereby better protecting the electric control actuator 3. At the same time, the heat shield 5 occupies less space in the form of a plate, and the structure is more rationalized. In the present embodiment, the shielding extension is an extension plate 51 arranged at the radially outermost side of the heat shield 5, and the extension plates 51 on both sides form a recess 52 for the connecting rod 4 to pass through, and the slot of the recess 52 faces the connecting rod 4. The above shielding extension in the form of an extension plate 51 is convenient for production and manufacturing, and makes the structure more rationalized, further ensures the shielding effect, and the formed recess 52 also prevents the connecting rod 4 from interfering with the heat shield 5 during movement.
[0028] As shown in Figures 1 to 4 , a reinforcing rib 53 is integrally arranged between the heat shield 5 and the pressure shell 2. The reinforcing rib 53 further ensures the connection strength and stability between the heat shield 5 and the pressure shell 2. In the present embodiment, the reinforcing rib 53 is provided with three parts, which are respectively arranged at both ends of the heat shield 5 and the middle part of the heat shield 5.
[0029] As Figures 1 to 3 shown, the electric control actuator 3 is rotationally connected with an actuator rocker 31, and the electric control actuator 3 drives the actuator rocker 31 to rotate; the volute body 1 is provided with a waste gas valve rocker 10; the left end of the connecting rod 4 is fixedly connected with the actuator rocker 31, and the right end of the connecting rod 4 is fixedly connected with the waste gas valve rocker 10. In actual work of the electric control actuator 3, the electric control actuator 3 drives the connecting rod 4 to move through the actuator rocker 31, the connecting rod 4 passes through the avoiding groove 52 of the heat shield 5, and then drives the waste gas valve rocker 10 to rotate, and finally adjusts the exhaust amount of the volute bypass valve.
[0030] The utility model discloses the advantage is that heat shield 5 and pressure shell 2 are integrated together, thereby reach the effect of heat insulation of electric control actuator 3, do not have to specially design a independent heat shield 5, and the structure is simpler, reduces unnecessary fastening screw and assembly technology, avoids the risk of cracking or breaking of independent heat shield 5 in the durability process, reduces cost simultaneously, for the supercharger of mass production project, at least can reduce ten yuan cost of supercharger finished product per unit. The heat shield 5 is lower in thermal conductivity through aluminum material, and the heat insulation effect is better, thereby reach the effect of heat insulation of electric control actuator 3, make the temperature of electric control actuator 3 be below 160 DEG C, ensure the stable operation of electric control actuator 3, make the structure more reasonable through the combination of shielding extension, further ensure the heat insulation effect.
[0031] In the description of the embodiments of the present application, it should be noted that in the description of the present application, the terms indicating the direction or position relationship are based on the direction or position relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.
[0032] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "in the present embodiment", "specific examples" or "some examples" means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. Furthermore, the skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.
[0033] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any changes or replacements within the technical scope disclosed by the present application can be easily conceived by the person skilled in the art, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A cast-in-place heat insulation cover pressure shell structure, characterized in that, The device includes a volute body (1), a pressure shell (2), an electric actuator (3), and a connecting rod (4); the pressure shell (2) is mounted on the volute body (1); the electric actuator (3) is mounted on the pressure shell (2); a heat shield (5) is integrally formed on the pressure shell (2) and extends radially outward along the pressure shell (2), the heat shield (5) is arranged between the electric actuator (3) and the volute body (1), and the heat shield (5) is used to block the heat radiation from the volute body (1); one end of the connecting rod (4) is movably connected to the electric actuator (3), and the other end of the connecting rod (4) is movably connected to the volute body (1), and the heat shield (5) is provided with shielding extensions on both sides of the connecting rod (4).
2. The cast integrated heat insulation cover pressure shell structure according to claim 1, characterized in that, The vortex shell body (1) includes a vortex shell (11) and an intermediate shell (12); the intermediate shell (12) is installed between the vortex shell (11) and the pressure shell (2), and the vortex shell (11) and the intermediate shell (12) are fixedly connected by a clamp (6), and the intermediate shell (12) and the pressure shell (2) are fixedly connected by a first bolt (7).
3. The cast integrated heat insulation cover pressure shell structure according to claim 2, characterized in that, The heat insulation cover (5) is located at the flange where the pressure shell (2) and the intermediate shell (12) meet. The heat insulation cover (5) is located on the side close to the connecting rod (4). The heat insulation cover (5) is a heat insulation plate that extends radially outward along the flange.
4. The cast integrated heat insulation cover pressure shell structure according to claim 1, characterized in that, The shielding extension is an extension plate (51) located on the outermost radial side of the heat insulation cover (5), and a clearance groove (52) is formed between the extension plates (51) on both sides for the connecting rod (4) to pass through.
5. The cast integral heat insulation cover pressure shell structure according to claim 1 or 4, characterized in that, An integrally formed reinforcing rib (53) is also provided between the heat insulation cover (5) and the pressure shell (2).
6. The cast integrated heat insulation cover pressure shell structure according to claim 5, characterized in that, The reinforcing ribs (53) are respectively provided at both ends of the heat insulation cover (5) and in the middle of the heat insulation cover (5).
7. The cast integrated heat insulation cover pressure shell structure according to claim 1, characterized in that, The electric actuator (3) is rotatably connected to an actuator rocker arm (31), and the electric actuator (3) drives the actuator rocker arm (31) to rotate; the volute body (1) is provided with an exhaust valve rocker arm (10); one end of the connecting rod (4) is fixedly connected to the actuator rocker arm (31), and the other end of the connecting rod (4) is fixedly connected to the exhaust valve rocker arm (10).
8. The cast integral heat insulation cover pressure shell structure according to claim 1 or 7, characterized in that, The electronically controlled actuator (3) is fixedly mounted on the pressure shell (2) by a second screw (8).
9. The cast integrated heat insulation cover pressure shell structure according to claim 1, characterized in that, The pressure shell (2) is made of aluminum.