Automobile air duct with temperature insulation structure

Abstract

The application relates to an automobile air pipe with a temperature insulation structure and belongs to the technical field of automobile accessories. The air pipe comprises an air pipe body and a heat preservation sleeve. Air inlets and air outlets are arranged at the two ends of the air pipe body respectively. Connection protrusions are arranged on the air pipe body. The connection protrusions are at least three. The three connection protrusions are arranged at the two ends and the middle of the air pipe body respectively. Connection holes are arranged on the two sides of the heat preservation sleeve. The connection holes on each side of the heat preservation sleeve correspond to the connection protrusions one by one. The heat preservation sleeve is wrapped outside the air pipe body. The two sides of the heat preservation sleeve are overlapped and fixed by gluing. The heat preservation sleeve and the connection protrusions are fixed by gluing. The heat preservation sleeve of the air pipe is not easy to be separated due to aging of glue.

Description

Technical Field

[0001] This application relates to the field of automotive parts, and in particular to an automotive air duct with a thermal insulation structure. Background Technology

[0002] Automotive ducts are the conduits in a car's system that guide and deliver airflow, including brake ducts, air conditioning ducts, and spool ducts. Brake ducts are primarily used in performance cars and racing cars to help reduce the temperature of the front braking system during braking, improving braking efficiency and safety. Air conditioning ducts are an important component of the car's air conditioning system, responsible for circulating outside air flowing from the heater and air conditioner into the car's interior.

[0003] A car air conditioning duct is generally a pipe with two openings: an air inlet and an air outlet. The air conditioning system is usually composed of multiple similar pipes that meet different needs. Since the air delivered by the car air conditioning duct often has a temperature difference with the external environment in order to achieve the air conditioning function of regulating the temperature inside the car, the insulation of the car air conditioning duct needs to be good. Generally, an insulation sleeve is glued to the outside of the car air conditioning duct to reduce energy loss.

[0004] The existing method of gluing insulation sleeves to air ducts uses adhesive, but the adhesive will age under repeated temperature changes. Compared with the aging of the insulation sleeve itself, the adhesive ages faster. Therefore, the insulation sleeve may come off and affect the air conditioning system of the car later. Utility Model Content

[0005] To extend the insulation performance of automotive air ducts, this application provides an automotive air duct with an insulation structure.

[0006] The technical solution for an automotive air duct with a thermal insulation structure provided in this application is as follows: An automotive air duct with a thermal insulation structure includes an air duct body and a thermal insulation sleeve. The air duct body has an air inlet and an air outlet at both ends. The air duct body is provided with connecting protrusions, and at least three connecting protrusions are provided. The three connecting protrusions are respectively located at both ends and the middle of the air duct body. The thermal insulation sleeve has connecting holes on both sides, and the connecting holes on each side of the thermal insulation sleeve correspond one-to-one for the connecting protrusions to pass through. The thermal insulation sleeve wraps around the air duct body, and the two sides of the thermal insulation sleeve overlap and are glued and fixed together. The thermal insulation sleeve is glued and fixed to the connecting protrusions.

[0007] By adopting the above technical solution, the insulation sleeve and the duct body are not only fixed by adhesive, but also mechanically fixed by connecting protrusions on both sides of the insulation sleeve and the duct body. This ensures that the insulation sleeve is installed firmly on the duct body. At the same time, when the adhesive ages and fails, the mechanical connection structure between the connecting protrusions and the insulation sleeve can still be effective. Thus, even after long-term use and adhesive aging, the duct can still maintain a certain insulation effect. The initial firmness between the insulation sleeve and the connecting protrusions is further reinforced by adhesive.

[0008] Optionally, a limiting element may also be included, which is mounted on the connecting protrusion and restricts the insulation sleeve from detaching.

[0009] By adopting the above technical solution, the insulation sleeve is prevented from detaching from the connecting protrusion by the limiting component, making the mechanical connection between the insulation sleeve and the air duct body more secure, and ensuring that the insulation sleeve will not fall off after the glue ages.

[0010] Optionally, the outer peripheral wall of the connecting protrusion has a circular cross-section, and the limiting member is threadedly fitted onto the connecting protrusion.

[0011] By adopting the above technical solution, the installation of the limiting component is made easier while ensuring a firm connection.

[0012] Optionally, the connecting protrusion includes multiple connecting sub-protrusions, which are arranged in a circular manner to form a quasi-circular tube, and the connecting hole includes multiple connecting sub-holes, which correspond one-to-one with the connecting sub-protrusions.

[0013] By adopting the above technical solution, multiple connecting protrusions are used to form a connecting protrusion, which increases the area where the insulation sleeve is associated and fixed with the main body of the air duct while reducing the area where the insulation sleeve has connecting holes. At the same time, it ensures a firm connection, a wide bonding area after the adhesive ages, sufficient coverage area of ​​the insulation sleeve, a small area occupied by the connecting protrusions, and insulation sleeve space between the connecting protrusions, so as not to affect the insulation effect of the insulation sleeve as much as possible.

[0014] Optionally, the limiting member is covered with an insulation layer that extends to the end face of the limiting member that abuts against the insulation sleeve.

[0015] By adopting the above technical solution, the limiting component is wrapped with an insulation layer to ensure the insulation effect of the connecting protrusion.

[0016] Optionally, the limiting member is provided with a heat-insulating ring inside, and the heat-insulating ring abuts against the upper end face of the connecting protrusion.

[0017] By adopting the above technical solution, the heat insulation ring covers the upper surface of the connecting protrusion, preventing heat transfer to the limiting component and also achieving the effect of heat insulation at the connecting protrusion position.

[0018] Optionally, the limiting member has an internal hexagonal hole at its top, and the insulation layer exposes the internal hexagonal hole.

[0019] By adopting the above technical solution, an internal hexagonal hole is opened on the top of the limiting component for screwing the limiting component in and out, making the limiting component more securely installed and less likely to damage the insulation layer when rotating the limiting component.

[0020] Optionally, the limiting member has an internal hexagonal socket, which corresponds to the internal hexagonal hole and abuts against the insulation sleeve.

[0021] By adopting the above technical solution, the setting of the internal hexagonal column has two advantages. First, it facilitates the opening of the internal hexagonal hole, which can be opened deeper to facilitate tool insertion. Second, the internal hexagonal column abuts against the insulation sleeve, making it less likely for the part of the insulation sleeve located inside the connecting protrusion to lift up and affect the insulation effect. In particular, it prevents the insulation sleeve from being subjected to external force, which could cause the part of the insulation sleeve located inside the connecting protrusion to break and lift up due to stress.

[0022] In summary, the insulation sleeve is not only fixed to the duct body by adhesive, but also mechanically fixed to the duct body by connecting protrusions on both sides. This ensures that the insulation sleeve is installed firmly on the duct body. At the same time, when the adhesive ages and fails, the mechanical connection structure between the connecting protrusions and the insulation sleeve can still function. Thus, even after long-term use and adhesive aging, the duct can still maintain a certain insulation effect. The initial firmness between the insulation sleeve and the connecting protrusions is further reinforced by adhesive. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the automotive air duct in the embodiments of this application; Figure 2 yes Figure 1 Enlarged view of point A in the image; Figure 3 This is a schematic diagram of the installation structure of the mounting protrusion and the insulation sleeve in the embodiments of this application; Figure 4 This is a schematic diagram of the structure of the limiting element in an embodiment of this application; Figure 5 This is a cross-sectional view of the limiting element in an embodiment of this application.

[0024] Explanation of reference numerals in the attached drawings: 1. Main body of the duct; 11. Air inlet; 12. Air outlet; 13. Connecting protrusion; 131. Connecting sub-protrusion; 2. Insulation sleeve; 21. Connecting hole; 211. Connecting sub-hole; 3. Restricting component; 31. Insulation layer; 32. Internal hexagonal hole; 33. Internal hexagonal column; 34. Insulation ring. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0026] This application discloses an automotive air duct with a thermal insulation structure.

[0027] Reference Figure 1 A car air duct with a thermal insulation structure includes an air duct body 1 and a thermal insulation sleeve 2. The thermal insulation sleeve 2 is installed and fixed on the air duct body 1 by forming a thermal insulation structure through glue and mechanical connection. The air duct body 1 is a hollow tube with a straight extension in the middle and bending extensions in the same direction at both ends. The openings at both ends of the air duct body 1 have different orientations and are respectively an air inlet 11 and an air outlet 12.

[0028] Reference Figure 2 and Figure 3 The insulation sleeve 2 is a square piece of insulation material. The insulation sleeve 2 wraps around the air duct body 1, with the two sides of the insulation sleeve 2 overlapping. At the same time, the overlapping part of the insulation sleeve 2 is glued and fixed. Meanwhile, the air duct body 1 has a connecting protrusion 13 protruding from the area corresponding to the overlapping part of the insulation sleeve 2. A limiting member 3 is installed on the connecting protrusion 13. The insulation sleeve 2 is mechanically fixed to the air duct body 1 by the cooperation of the connecting protrusion 13 and the limiting member 3. In this embodiment, there are three connecting protrusions 13. One connecting protrusion 13 is located in the middle of the air duct body 1, and the other two connecting protrusions 13 are located at both ends of the air duct body 1 near the air inlet and air outlet, respectively, thereby mechanically fixing the two ends and the middle of the insulation sleeve 2.

[0029] More connecting protrusions 13 can be set, and multiple connecting protrusions 13 are evenly distributed on the duct body 1.

[0030] Both sides of the overlapping insulation sleeve 2 are provided with connection holes 21. At the same time, the connection holes 21 on both sides of the insulation sleeve 2 correspond one-to-one. After the insulation sleeve 2 overlaps, the corresponding connection holes 21 are interconnected. The number of connection holes 21 on each side of the insulation sleeve 2 corresponds one-to-one with the connection protrusion 13. The connection protrusion 13 passes through two connection holes 21 and is equipped with the aforementioned limiting member 3. The limiting member 3 prevents the insulation sleeve 2 from detaching from the connection protrusion 13.

[0031] Each connecting protrusion 13 is equipped with a limiting member 3. The connecting protrusion 13 includes multiple connecting sub-protrusions 131, which are arranged in a circular manner to form a quasi-circular tube. In this embodiment, each connecting protrusion 13 includes three connecting sub-protrusions 131, which are part of a ring. The three connecting sub-protrusions 131 are evenly arranged circumferentially to form an incomplete ring. Adjacent connecting sub-protrusions 131 are spaced at a certain angle. The connecting hole 21 also includes three connecting sub-holes 211, which correspond one-to-one with the three connecting protrusions 131.

[0032] In another embodiment, the number of connecting protrusions 131 may be other numbers, but at least two connecting protrusions 131, preferably three connecting protrusions 131 forming a connecting protrusion 13.

[0033] Reference Figure 2 and Figure 4 The limiting member 3 is threaded onto the connecting protrusion 13. The limiting member 3 is wrapped with an insulation layer 31. The insulation layer 31 is installed on the outer peripheral wall of the limiting member 3 and extends downward to the end face of the limiting member 3 that abuts against the insulation sleeve 2. The insulation layer 31 abuts against the insulation sleeve 2. The top surface of the limiting member 3 is coaxially provided with an internal hexagonal hole 32. The top of the insulation sleeve 2 is open and the internal hexagonal hole 32 is exposed.

[0034] Reference Figure 3 and Figure 5 The limiting component 3 has a coaxially arranged internal hexagonal column 33, which corresponds to the internal hexagonal hole 32. The internal hexagonal hole 32 extends into the internal hexagonal column 33. When the limiting component 3 is threaded onto the connecting protrusion 13, the internal hexagonal column 33 abuts against the insulation sleeve 2. The limiting component 3 has an internal insulation ring 34, which is fitted onto the internal hexagonal column 33. At the same time, the insulation ring 34 abuts against the upper end face of the connecting protrusion 13. The insulation ring 34 also fills the space between the internal hexagonal column 33 and the connecting protrusion 13.

[0035] In another embodiment, the connecting protrusion 13 is a complete ring, and the part of the duct body 1 inside the connecting protrusion 13 does not have an insulation sleeve 2, while the insulation ring 34 wraps around the entire internal hexagonal column 33 and abuts against and covers the part of the duct body 1 located inside the connecting protrusion 13.

[0036] In a further embodiment, the insulation sleeve 2 is also glued and fixed to the connecting protrusion 13 on both sides during the connection process, so as to further improve the installation firmness of the insulation sleeve 2. At the same time, the insulation sleeve 2 is installed more smoothly when both sides are installed in sequence.

[0037] The implementation principle of an automotive air duct with a thermal insulation structure in this application embodiment is as follows: the thermal insulation sleeve 2 is not only fixed to the air duct body 1 by adhesive, but the two sides of the thermal insulation sleeve 2 are also mechanically fixed to the air duct body 1 by connecting protrusions 13 and limiting members 3, so as to ensure that the thermal insulation sleeve 2 is installed firmly on the air duct body 1. At the same time, when the adhesive ages and fails, the mechanical connection structure between the connecting protrusions 13 and the thermal insulation sleeve 2 can still be effective.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A car air duct with a heat insulation structure, characterized in that: The duct includes a main body (1) and an insulation sleeve (2). The main body (1) has an air inlet (11) and an air outlet (12) at both ends. The main body (1) is provided with connecting protrusions (13). There are at least three connecting protrusions (13). The three connecting protrusions (13) are respectively located at both ends and the middle of the main body (1). The insulation sleeve (2) has connecting holes (21) on both sides. The connecting holes (21) on each side of the insulation sleeve (2) correspond to the connecting protrusions (13) for passage. The insulation sleeve (2) is wrapped around the main body (1). The two sides of the insulation sleeve (2) are overlapped and glued together. The insulation sleeve (2) is glued together with the connecting protrusions (13).

2. The automotive air duct with a thermal insulation structure according to claim 1, characterized in that: It also includes a limiting member (3), which is installed on the connecting protrusion (13) and restricts the insulation sleeve (2) from detaching.

3. The automotive air duct with a thermal insulation structure according to claim 2, characterized in that: The outer peripheral wall of the connecting protrusion (13) has a circular cross-section, and the limiting member (3) is threaded onto the connecting protrusion (13).

4. The automotive air duct with a heat insulation structure according to claim 3, characterized in that: The connecting protrusion (13) includes multiple connecting sub-protrusions (131), which are arranged around each other to form a quasi-circular tube. The connecting hole (21) includes multiple connecting sub-holes (211), which correspond one-to-one with the connecting sub-protrusions (131).

5. The automotive air duct with a thermal insulation structure according to claim 2, characterized in that: The limiting member (3) is covered with an insulation layer (31), which extends to the end face of the limiting member (3) abutting the insulation sleeve (2).

6. The automotive air duct with a thermal insulation structure according to claim 4, characterized in that: The limiting member (3) has an insulation ring (34) inside, and the insulation ring (34) abuts against the upper surface of the connecting protrusion (13).

7. The automotive air duct with a thermal insulation structure according to claim 5, characterized in that: The limiting member (3) has an internal hexagonal hole (32) at the top, and the insulation layer (31) exposes the internal hexagonal hole (32).

8. The automotive air duct with a thermal insulation structure according to claim 7, characterized in that: The limiting member (3) has an internal hexagonal column (33) inside, which corresponds to the internal hexagonal hole (32) and abuts against the insulation sleeve (2).

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