Small-size special-shaped heat insulation connecting component and mounting method

Abstract

The invention relates to the field of high-end equipment manufacturing, in particular to a small-size special-shaped heat insulation connecting component and a mounting method.The connecting component comprises a screw and a special-shaped heat insulation sleeve, the smooth section of the screw is provided with a stepped shaft, and the head of the screw is provided with a through groove; the special-shaped heat insulation sleeve comprises a plurality of arc-shaped heat insulation plates, axial protrusions are arranged on the top faces of the arc-shaped heat insulation plates, heat collection grooves are formed in the side walls of the arc-shaped heat insulation plates, the axial protrusions are provided with heat dissipation channels, and the heat dissipation channels are communicated with the heat collection grooves. The heat which is possibly accumulated in a connecting area originally is timely guided out through a constructed heat dredging path from the stepped shaft to the heat collecting groove, the heat dissipation channel and the outside in sequence, and the local temperature peak value is reduced; and on the other hand, the split type design supports lateral assembly, nuts or workpieces do not need to be disassembled, replacement is convenient, the maintenance cost is reduced, and the device can be highly matched with fastening connection use between workpieces under the high-temperature or large-temperature-difference working condition.

Description

Technical Field

[0001] This invention relates to the field of high-end equipment manufacturing, and in particular to a small-sized irregularly shaped heat-insulating connection component and its installation method. Background Technology

[0002] Bolts and threaded fasteners are widely used in fastening components operating under high temperature or large temperature difference conditions, such as engine compartments, new energy vehicle battery packs, aerospace structural components, and high-temperature pipeline systems. In these applications, although traditional metal screws have excellent mechanical strength and fastening performance, their high thermal conductivity causes a thermal bridging effect. Heat can be rapidly conducted from the high-temperature side to the low-temperature side through the metal screw, leading to problems such as thermal stress deformation and fatigue cracking in the fastener itself or adjacent structures.

[0003] Existing technologies address these issues by replacing the bolts entirely with non-metallic materials or by adding independent, irregularly shaped heat insulation sleeves to the outside of the bolts. However, polymer materials such as PEEK and PI are expensive and have limited strength, while independent, irregularly shaped heat insulation sleeves suffer from problems such as loose structure and complex assembly.

[0004] There is an urgent need for a connecting component that can maintain the high strength of metal screws, effectively suppress thermal bridging, and has active heat dissipation capabilities, a compact structure, and is easy to assemble and maintain. Summary of the Invention

[0005] The purpose of this invention is to provide a small-sized irregular-shaped thermal insulation connection component and installation method, which solves the problem of effectively reducing cross-regional heat conduction caused by thermal bridging effect without sacrificing the mechanical strength of small-sized metal screws, while realizing active heat dissipation and local heat dissipation, and overcoming the problems of loose structure, low efficiency and inconvenient assembly of traditional thermal insulation methods.

[0006] To achieve this objective, the present invention adopts the following technical solution: A small-sized, irregularly shaped thermal insulation connection component includes: The screw has a head, a smooth section and a threaded section, wherein the smooth section is provided with a stepped shaft connected to the bottom end face of the head, and the top end face of the head is provided with a through groove extending to the bottom end face. The irregular heat insulation sleeve includes multiple arc-shaped heat insulation plates wrapped around the periphery of the stepped shaft. The top surface of the arc-shaped heat insulation plate is provided with an axial protrusion extending into the through groove and engaging with the through groove. The arc-shaped heat insulation plate is provided with a heat collection groove on the side wall corresponding to the stepped shaft. The axial protrusion is provided with a heat dissipation channel that runs through the top and bottom. The top channel opening of the heat dissipation channel faces the outer periphery of the head, and the bottom channel opening connects to the heat collection groove.

[0007] Preferably, the top surface of the head is provided with a drive groove, each channel of the drive groove is perpendicularly connected to a through groove, and one side wall of the through groove is connected to the side wall of the head along the extension direction of the corresponding channel to form a lateral opening that connects the channel and the through groove to the outside; the axially protruding side is provided with a block-shaped engaging part that engages with the lateral opening.

[0008] Preferably, the side wall of the lateral opening near the center of the head is provided with a mounting groove extending to the stepped shaft, the inner side wall of the arc-shaped heat insulation plate and the block-shaped locking part is provided with a plate-shaped locking part that mates with the mounting groove, and the heat dissipation channel is located at the junction of the plate-shaped locking part and the inner side wall of the arc-shaped heat insulation plate and the block-shaped locking part.

[0009] Preferably, the plate-shaped engaging portion is a heat insulation plate that is detachably connected to the axial protrusion.

[0010] Preferably, one side of the mounting groove extends to the area corresponding to the heat collection groove on the side wall of the stepped shaft, and the heat collection groove is detachably connected to a heat-conducting plate, the heat-conducting plate being structurally matched with the area of ​​the mounting groove located on the stepped shaft.

[0011] Preferably, the head cover is provided with a heat insulation cover, the bottom surface of which intersects with the top surface of the plate-shaped engaging part, and the top channel opening of the heat dissipation channel is located outside the intersecting surface of the heat insulation cover and the plate-shaped engaging part.

[0012] Preferably, the top opening of the heat dissipation channel is located on the top surface of the block-shaped engaging portion.

[0013] A method for installing a small-sized irregularly shaped thermal insulation connection component is also provided, relating to the small-sized irregularly shaped thermal insulation connection component as described in any of the preceding claims, the method comprising, Multiple arc-shaped heat insulation panels are joined together radially at the corresponding stepped axis positions; Align the axial protrusions of each arc-shaped heat insulation plate with the through slots of the screw head and push them axially so that each axial protrusion is fully embedded in the corresponding through slot. Connect two adjacent arc-shaped heat insulation panels so that each arc-shaped heat insulation panel is tightly attached to the periphery of the stepped shaft.

[0014] Compared with the prior art, the present invention has the following beneficial effects: By wrapping the smooth section with low thermal conductivity material in the irregularly shaped heat insulation sleeve, the direct heat conduction path between the screw and the external structure is effectively blocked. The constructed stepped shaft leads to the heat collection tank, heat dissipation channel and external heat conduction path in sequence, which timely dissipates the heat that may have accumulated in the connection area and reduces the local temperature peak. On the other hand, the split design supports lateral assembly without disassembling the nut or workpiece, which is convenient for replacement, reduces maintenance costs, and can be highly adapted to the fastening connection between workpieces under high temperature or large temperature difference conditions. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0017] Figure 1 A schematic diagram of a small-sized, irregularly shaped thermal insulation connection component; Figure 2 A structural breakdown diagram of a small-sized, irregularly shaped thermal insulation connection component; Figure 3 This is a schematic diagram of another structure for a small-sized, irregularly shaped thermal insulation connection component; Figure 4 This is a schematic diagram of the plate-shaped interlocking part of a small-sized irregularly shaped thermal insulation connection component; Figure 5 A schematic diagram of a heat-conducting plate structure for a small-sized, irregularly shaped thermal insulation connection component; Figure 6 A schematic diagram of the internal structure of a heat-conducting plate after assembly of a small-sized irregularly shaped thermal insulation connection component; Figure 7 A schematic diagram of a heat insulation cover structure for a small-sized, irregularly shaped heat insulation connection component; Figure 8 This is a flowchart illustrating the steps involved in installing a small-sized, irregularly shaped thermal insulation connection component.

[0018] Illustration: 10. Screw; 11. Head; 12. Smooth section; 13. Threaded section; 14. Stepped shaft; 15. Through slot; 16. Lateral opening; 17. Drive slot; 18. Mounting slot; 20. Heat insulation cover; 30. Irregularly shaped heat insulation sleeve; 31. Arc-shaped heat insulation plate; 32. Axial protrusion; 33. Heat collection slot; 34. Heat dissipation channel; 35. Block-shaped locking part; 36. Plate-shaped locking part; 37. Heat-conducting plate. Detailed Implementation

[0019] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0020] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention 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 the invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the connection.

[0021] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] This invention provides a small-sized irregularly shaped thermal insulation connection component and its installation method.

[0023] like Figure 1 , Figure 2 A small-sized, irregularly shaped thermal insulation connection component, comprising: The screw 10 has a head 11, a smooth section 12 and a threaded section 13. The smooth section 12 is provided with a stepped shaft 14 connected to the bottom end face of the head 11. The top end face of the head 11 is provided with a through groove 15 extending to the bottom end face. The irregular heat insulation sleeve 30 includes multiple arc-shaped heat insulation plates 31 surrounding the stepped shaft 14. The top surface of the arc-shaped heat insulation plate 31 is provided with an axial protrusion 32 extending into the through groove 15 and engaging with the through groove 15. The arc-shaped heat insulation plate 31 is provided with a heat collection groove 33 corresponding to the side wall of the stepped shaft 14. The axial protrusion 32 is provided with a heat dissipation channel 34 that runs through the top and bottom. The top channel opening of the heat dissipation channel 34 faces the outer periphery of the head 11, and the bottom channel opening connects to the heat collection groove 33.

[0024] In this embodiment, the connecting member is used to fasten at least two workpieces. The smooth section 12 and the threaded section 13 are located on the same shaft, both the shaft and the head 11 being cylindrical. The smooth section 12 is a smooth, unthreaded shaft section located between the head 11 and the threaded section 13. When multiple workpieces are connected via this connecting member, the head 11 acts on one of the outermost workpieces, while the threaded section 13 acts on the other outermost workpiece. The smooth section 12 passes through other intermediate workpieces or is exposed in space. In general, heat is conducted from the outside of the workpiece (i.e., from the head 11) inwards, or from the inside of the workpiece (i.e., from the threaded section 13) outwards; both paths pass through the smooth section 12. In this embodiment, while ensuring the rigidity of the screw 10 structure, slight adjustments are made to the head 11 and the smooth section 12. Combined with the unique design of the irregularly shaped heat insulation sleeve 30, the thermal bridging effect of the smooth section 12 on the workpiece is reduced, and some of the heat from the smooth section 12 is guided to the external environment, thereby correspondingly reducing the heat conducted by the smooth section 12.

[0025] To accommodate the assembly of the irregular heat insulation sleeve 30, a stepped shaft 14 with a diameter smaller than that of the smooth section 12 is opened in the area near the head 11 of the smooth section 12, forming a stepped structure that provides axial restraint and radial support for the irregular heat insulation sleeve 30.

[0026] The arc-shaped heat insulation plate 31 is a plate-like structure extending axially along the smooth section 12. Its inner side is in contact with the side wall of the stepped shaft 14, and its outer side is flush with the side wall of the smooth section 12. A detachable connection structure, such as a male and female buckle, is provided between two adjacent arc-shaped heat insulation plates 31 for easy assembly and disassembly. The axial protrusion 32 on the top surface of the arc-shaped heat insulation plate 31 is first inserted into the through groove 15 of the head 11 of the screw 10. Then, multiple arc-shaped heat insulation plates 31 are assembled into a ring through the detachable connection structure to fit around the stepped shaft 14. The cross section of the axial protrusion 32 and the cross section of the through groove 15 should be consistent to achieve a tight fit and prevent the irregular heat insulation sleeve 30 from rotating as a whole.

[0027] As the only intermediate path for the smooth section 12 to dissipate heat to the heat dissipation channel 34, the heat collection groove 33 should maximize its contact area with the stepped shaft 14, and the groove opening of the heat collection groove 33 should be in close contact with the side wall of the stepped shaft 14 to efficiently capture the heat conducted to the smooth section 12.

[0028] The heat dissipation channel 34 opens through the interior of the axial protrusion 32 and connects the exterior with the heat collection groove 33. The channel structure can be multiple straight holes, bent channels or micro channels, and the interior can be filled with thermal grease or metal filler material to enhance thermal conductivity.

[0029] Combining the above-mentioned small-sized irregularly shaped thermal insulation connection components, such as Figure 8 This invention also provides a method for installing small-sized irregularly shaped thermal insulation connection components, the method comprising: S1, the multiple arc-shaped heat insulation plates 31 are radially joined together at the positions corresponding to the stepped shaft 14; S2, align the axial protrusions 32 of each arc-shaped heat insulation plate 31 with the through groove 15 of the head 11 of the screw 10, and push them along the axial direction so that each axial protrusion 32 is fully embedded in the corresponding through groove 15. S3 connects two adjacent arc-shaped heat insulation plates 31, so that each arc-shaped heat insulation plate 31 is tightly attached to the periphery of the stepped shaft 14.

[0030] The screw 10 and the irregularly shaped heat insulation sleeve 30 are assembled into a small-sized irregularly shaped heat insulation connection component through the above-described method steps, thereby enabling fastening connections between multiple workpieces. Understandably, the head 11 has a drive groove 17 adapted to a tightening tool; the drive groove 17 is cross-shaped or slotted, etc.

[0031] During the fabrication and molding process of the aforementioned components, the screw 10 structure can be achieved by combining cold heading, CNC turning, and tapping processes, while the irregularly shaped heat insulation sleeve 30 structure can be achieved by combining precision injection molding, micro-hole machining, and 3D printing processes. The molding processes are conventional techniques well-known to those skilled in the art and will not be described in detail here.

[0032] The irregularly shaped heat insulation sleeve 30 significantly reduces the thermal bridging effect of the screw 10 on the connected workpiece. Combined with the screw 10's compact structure, a heat conduction path is constructed from the stepped shaft 14 to the heat collection tank 33, the heat dissipation channel 34, and the outside. Part of the heat conducted to the low-temperature section through the smooth section 12 is actively conducted to the external environment, realizing a dual mechanism of passive heat insulation and active heat dissipation. In addition, the arc-shaped heat insulation plate 31 adopts a split design, which does not need to be inserted from the end, making it easy to disassemble and assemble.

[0033] In another embodiment, such as Figure 3 The top surface of the head 11 is provided with a drive groove 17. Each channel of the drive groove 17 is vertically connected to a through groove 15. One side wall of the through groove 15 extends through the side wall of the head 11 along the extension direction of the corresponding channel to form a lateral opening 16 that connects the channel and the through groove 15 to the outside. A block-shaped engaging part 35 that engages with the lateral opening 16 is provided on one side of the axial protrusion 32.

[0034] This embodiment starts with the channel of the drive groove 17, so that each channel is perpendicularly connected to a through groove 15. For example, if the drive groove 17 is cross-shaped, it includes four channels extending axially from the center of the top surface of the head 11. Each channel corresponds to and is perpendicularly connected to an independent through groove 15. Furthermore, one side wall of the through groove 15 is connected to the side wall of the head 11 along the extension direction of the corresponding channel, that is, it is radially connected to the side wall of the head 11 and the through groove 15, forming a lateral opening 16 for positioning and assembly.

[0035] Correspondingly, a block-shaped engaging portion 35 is provided on one side of the axial protrusion 32, the size of which matches the lateral opening 16, to facilitate locking and fixing to the lateral opening 16. The block-shaped engaging portion 35 and the axial protrusion 32 can be integrally formed.

[0036] The lateral opening 16 replaces the limiting structure of the original through groove 15 while meeting the structural rigidity requirements, allowing the arc-shaped heat insulation plate 31 to be directly radially assembled. It is no longer necessary to axially push the axial protrusion 32 into the through groove 15, simplifying the assembly steps and making it suitable for assembly in narrow spaces or between complex structures. On the other hand, the block-shaped locking part 35, as a radial extension of the axial protrusion 32, widens the heat insulation area of ​​the head 11, providing structural stability while further reducing the thermal bridge effect of the head 11.

[0037] In another embodiment, such as Figure 4 The lateral opening 16 has a mounting groove 18 extending to the stepped shaft 14 on its side wall near the center of the head 11. The arc-shaped heat insulation plate 31 and the block-shaped locking part 35 have a plate-shaped locking part 36 that cooperates with the mounting groove 18 on the same inner side wall. The heat dissipation channel 34 is located at the junction of the plate-shaped locking part 36 and the same inner side wall of the arc-shaped heat insulation plate 31 and the block-shaped locking part 35.

[0038] In this embodiment, the mounting groove 18 is a recessed structure, corresponding to the step of the stepped shaft 14, which is equivalent to the lateral opening 16 extending beyond the outer periphery of the stepped shaft 14 into the head 11. The plate-shaped engaging part 36 is also a heat insulation component, in the form of a thin plate, with a thickness matching the depth of the mounting groove 18. After being inserted into the mounting groove 18, it forms a lock, further consolidating the stability after assembly.

[0039] By using the plate-shaped engaging portion 36 as the part extending inward from the axial protrusion 32, the width of the axial protrusion 32 is effectively widened, making it easier to increase the diameter of the heat dissipation channel 34. On the other hand, the wedge-shaped fit between the plate-shaped engaging portion 36 and the mounting groove 18 simplifies the assembly process, ensures one-time installation, and reduces the difficulty of manual operation.

[0040] In another embodiment, the plate-shaped engaging portion 36 is a heat insulation plate detachably connected to the axial protrusion 32.

[0041] In another embodiment, such as Figure 5 , Figure 6 One side of the mounting groove 18 extends to the area on the side wall of the stepped shaft 14 corresponding to the heat collection groove 33. The heat collection groove 33 is detachably connected to a heat-conducting plate 37, and the heat-conducting plate 37 matches the structure of the mounting groove 18 in the area of ​​the stepped shaft 14.

[0042] In this embodiment, the heat insulation plate and the heat conduction plate 37 are independently arranged and are not integrally formed with the corresponding axial protrusion 32 and the arc-shaped heat insulation plate 31. Instead, they are connected to each other by detachable means such as snaps, screws, or interference fits, which facilitates the machining of the channels and disassembly and replacement. It should be noted that one side of the mounting groove 18 extends to the area corresponding to the heat collection groove 33 on the side wall of the stepped shaft 14. That is, the end of the mounting groove 18 is spatially aligned with or partially overlaps with the heat collection groove 33, forming a cooperative area for heat conduction and structural connection. The heat conduction plate 37 and the mounting groove 18 are structurally matched in the area of ​​the stepped shaft 14. That is, the installation position of the heat conduction plate 37 is spatially aligned with the extended end of the mounting groove 18, and their outlines are complementary, forming a cooperative assembly structure. This allows the heat conduction plate 37 to conduct the heat from the stepped shaft 14 to the heat collection groove 33.

[0043] In another embodiment, such as Figure 7 The head 11 is covered with a heat insulation cover 20, the bottom surface of the heat insulation cover 20 is connected to the top surface of the plate-shaped engaging part 36, and the top channel opening of the heat dissipation channel 34 is located outside the interface between the heat insulation cover 20 and the plate-shaped engaging part 36.

[0044] In this embodiment, the heat insulation cover 20 has a cap-shaped or disc-shaped structure, with an arc-shaped or flat top and edges extending downwards to form sidewalls. The bottom surface is used to make surface contact with the top surface of the plate-shaped engaging part 36 to form a thermal barrier interface. A sealing gasket or high-temperature sealant can be provided between the top surface of the plate-shaped engaging part 36 and the bottom surface of the heat insulation cover 20 to enhance the heat insulation and dustproof effect.

[0045] The top opening of the heat dissipation channel 34 is located outside the interface between the heat insulation cover 20 and the plate-shaped engaging part 36, that is, it is not covered by the heat insulation cover 20 and is exposed to the external environment, ensuring that hot air or heat can be freely discharged.

[0046] After the irregularly shaped heat insulation sleeve 30 is assembled and connected to the screw 10, the heat insulation cover 20 is pressed vertically downward from the top of the head 11, so that its bottom surface is completely fitted with the top surface of the plate-shaped engaging part 36, forming a closed heat insulation layer. The bottom of the heat insulation cover 20 has an engaging structure that mates with the drive groove 17, or the heat insulation cover 20 can be fixed to the top of the head 11 by means of threads or interference fits or other detachable means.

[0047] It should be noted that, in terms of materials, the heat-conducting plate 37 can be made of high thermal conductivity materials such as copper, aluminum, and graphene composite materials, while the heat insulation cover 20, the arc-shaped heat insulation plate 31, the plate-shaped locking part 36, and the protruding structure can be made of low thermal conductivity materials such as PEEK, PI, and ceramic matrix composite materials.

[0048] In another embodiment, the top channel opening of the heat dissipation channel 34 is located on the top surface of the block-shaped engaging portion 35.

[0049] In this embodiment, the heat dissipation channel 34 bends from the interior of the axial protrusion 32 to the interior of the block-shaped engaging portion 35 and penetrates the top surface of the block-shaped engaging portion 35 to form a top channel opening, thereby effectively avoiding the heat insulation cover 20. The top channel opening of the heat dissipation channel 34 can be replaced with multiple evenly distributed heat dissipation holes to avoid local airflow blockage, improve heat dissipation uniformity, and at the same time prevent dust and foreign objects from entering.

[0050] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A small-sized, irregularly shaped thermal insulation connection component, characterized in that, include: The screw (10) has a head (11), a smooth section (12) and a threaded section (13). The smooth section (12) is provided with a stepped shaft (14) connected to the bottom end face of the head (11). The top end face of the head (11) is provided with a through groove (15) extending to the bottom end face. The irregular heat insulation sleeve (30) includes multiple arc-shaped heat insulation plates (31) surrounding the stepped shaft (14). The top surface of the arc-shaped heat insulation plate (31) is provided with an axial protrusion (32) extending into the through groove (15) and engaging with the through groove (15). The arc-shaped heat insulation plate (31) is provided with a heat collection groove (33) corresponding to the side wall of the stepped shaft (14). The axial protrusion (32) is provided with a heat dissipation channel (34) that runs through the top and bottom. The top channel opening of the heat dissipation channel (34) faces the outer periphery of the head (11), and the bottom channel opening connects to the heat collection groove (33).

2. The small-sized irregular-shaped thermal insulation connection component according to claim 1, characterized in that, The top surface of the head (11) is provided with a drive groove (17), each channel of the drive groove (17) is perpendicularly connected to a through groove (15), and one side wall of the through groove (15) is connected to the side wall of the head (11) along the extension direction of the corresponding channel to form a lateral opening (16) that connects the channel and the through groove (15) to the outside; a block-shaped engaging part (35) is provided on one side of the axial protrusion (32) to engage with the lateral opening (16).

3. The small-sized irregular-shaped thermal insulation connection component according to claim 1, characterized in that, The lateral opening (16) has a mounting groove (18) extending to the stepped shaft (14) on the side wall near the center of the head (11). The arc-shaped heat insulation plate (31) and the block-shaped locking part (35) have a plate-shaped locking part (36) that cooperates with the mounting groove (18) on the same inner side wall. The heat dissipation channel (34) is located at the junction of the plate-shaped locking part (36) and the arc-shaped heat insulation plate (31) and the block-shaped locking part (35) on the same inner side wall.

4. The small-sized irregular-shaped thermal insulation connection component according to claim 3, characterized in that, The plate-shaped engaging part (36) is a heat insulation plate that is detachably connected to the axial protrusion (32).

5. The small-sized irregular-shaped thermal insulation connection component according to claim 3, characterized in that, One side of the mounting groove (18) extends to the area corresponding to the side wall of the stepped shaft (14) and the heat collection groove (33). The heat collection groove (33) is detachably connected to a heat-conducting plate (37). The heat-conducting plate (37) and the mounting groove (18) are structurally matched in the area of ​​the stepped shaft (14).

6. The small-sized irregular-shaped thermal insulation connection component according to claim 3, characterized in that, The head (11) is covered with a heat insulation cover (20), the bottom surface of the heat insulation cover (20) is connected to the top surface of the plate-shaped locking part (36), and the top channel opening of the heat dissipation channel (34) is located outside the interface between the heat insulation cover (20) and the plate-shaped locking part (36).

7. The small-sized irregular-shaped thermal insulation connection component according to claim 6, characterized in that, The top channel opening of the heat dissipation channel (34) is located on the top surface of the block-shaped engaging part (35).

8. A method for installing a small-sized irregularly shaped thermal insulation connection component, relating to the small-sized irregularly shaped thermal insulation connection component as described in any one of claims 1-7, characterized in that, The method includes, Multiple arc-shaped heat insulation panels (31) are joined together radially at the positions corresponding to the stepped axis (14); Align the axial protrusions (32) of each arc-shaped heat insulation plate (31) with the through groove (15) of the head (11) of the screw (10) and push them along the axial direction so that each axial protrusion (32) is fully embedded in the corresponding through groove (15). Connect two adjacent arc-shaped heat insulation plates (31) so that each arc-shaped heat insulation plate (31) is tightly attached to the periphery of the stepped shaft (14).

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