High-temperature-resistant flange for automobile air conditioning system

Abstract

The high-temperature-resistant flange for the automobile air conditioning system comprises a barrel, flange plate bodies are fixedly installed on the outer walls of the upper end and the lower end of the barrel, installation holes are formed in the outer surfaces of the upper ends of the flange plate bodies and penetrate through the outer surfaces of the lower ends of the flange plate bodies, and a heat insulation layer is fixedly installed on the inner wall of the barrel. A pre-tightening structure is mounted at the end, away from the barrel, of the flange plate body and comprises an annular mounting groove, a movable ring and a spiral spring, and the annular mounting groove is formed in the outer surface of the end, away from the barrel, of the flange plate body. According to the high-temperature-resistant flange for the automobile air conditioning system, the heat insulation layer is arranged, ceramic fiber materials are adopted, the good heat insulation performance is achieved, continuous pre-tightening force is provided for the bolts after threaded connection through the arranged pre-tightening structure, and looseness caused by high-temperature deformation is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive air conditioning system accessories, specifically a high-temperature resistant flange for automotive air conditioning systems. Background Technology

[0002] As a connecting component, the flange in an automotive air conditioning system directly affects the system's sealing and stability when it operates in high-temperature environments for extended periods.

[0003] However, the existing automotive air conditioning system flanges have the following significant drawbacks:

[0004] 1. Insufficient thermal insulation performance: Traditional flanges are mostly made of metal and lack effective thermal insulation design, which makes it easy for heat to be transferred to the connection parts in high-temperature environments. This not only affects the efficiency of the air conditioning system, but may also accelerate the aging of the sealing material and cause leakage risk.

[0005] 2. High-temperature deformation leading to loosening: Under high-temperature conditions, flanges and connecting bolts are prone to thermal expansion and deformation, and the pre-tightening force gradually decreases, causing the threaded connection to loosen, which in turn affects the sealing effect and may even lead to system failure.

[0006] Therefore, we propose a high-temperature resistant flange for automotive air conditioning systems. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] To address the shortcomings of existing technologies, this utility model provides a high-temperature resistant flange for automotive air conditioning systems. Through the design of a heat insulation layer and an anti-loosening thread structure, it achieves high-temperature resistance and other advantages, effectively solving the problems in the background technology.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a high-temperature resistant flange for an automotive air conditioning system, comprising a cylindrical body, with flange bodies fixedly installed on the outer walls of both the upper and lower ends of the cylindrical body. An installation hole is provided on the upper outer surface of the flange body, extending through to the lower outer surface of the flange body. A heat insulation layer is fixedly installed on the inner wall of the cylindrical body. A pre-tightening structure is installed at the end of the flange body away from the cylindrical body. The pre-tightening structure includes an annular mounting groove, a movable ring, and a helical spring, with the annular mounting groove located on the outer surface of the end of the flange body away from the cylindrical body.

[0011] Preferably, the helical spring is located in the annular mounting groove, the lower outer surface of the helical spring is fixedly connected to the bottom of the annular mounting groove, and the upper outer surface of the helical spring is fixedly connected to the lower outer surface of the movable ring.

[0012] Preferably, the outer wall of the movable ring is slidably connected to the annular mounting groove, and the lower outer surface of the movable ring is elastically connected to the bottom of the annular mounting groove by a helical spring.

[0013] Preferably, the heat insulation layer is made of ceramic fiber material.

[0014] Preferably, the helical spring is a nickel-based alloy spring.

[0015] Preferably, the heat insulation layer is bonded to the inner wall of the cylinder by a high-temperature adhesive. The high-temperature adhesive is an inorganic silicate adhesive, which has high bonding strength and excellent temperature resistance, thus preventing delamination or detachment.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a high-temperature resistant flange for automotive air conditioning systems, which has the following advantages:

[0018] 1. This high-temperature resistant flange for automotive air conditioning systems effectively blocks the transfer of high-temperature heat to the flange connection by setting a ceramic fiber insulation layer on the inner wall of the cylinder, reducing the risk of thermal deformation, while protecting the sealing material and extending its service life. The ceramic fiber material has the characteristics of high temperature resistance and low thermal conductivity, which significantly improves the stability of the flange in high-temperature environments.

[0019] 2. This high-temperature resistant flange for automotive air conditioning systems provides continuous pre-tightening force after bolt thread connection through a pre-tightening structure, preventing loosening caused by high-temperature deformation.

[0020] 3. This high-temperature resistant flange for automotive air conditioning systems has a pre-tightening structure that provides continuous pre-tightening force after bolt connection through the elastic cooperation of a helical spring and a movable ring. This compensates for material expansion or creep caused by high temperature, prevents thread loosening, and the nickel-based alloy helical spring has high-temperature fatigue resistance characteristics, ensuring that the pre-tightening force remains stable under long-term high-temperature conditions. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a high-temperature resistant flange for an automotive air conditioning system according to this utility model.

[0022] Figure 2 This is a schematic diagram of the structure of the high-temperature resistant flange cylinder for an automotive air conditioning system according to this utility model.

[0023] Figure 3 This is a schematic diagram of the flange body and pre-tightening structure in a high-temperature resistant flange for an automotive air conditioning system according to this utility model.

[0024] Figure 4 This utility model relates to a high-temperature resistant flange for automotive air conditioning systems. Figure 3Side view of the structure.

[0025] In the diagram: 1. Cylinder body; 2. Flange body; 3. Insulation layer; 4. Mounting hole; 5. Pre-tightening structure; 6. Annular mounting groove; 7. Movable ring; 8. Helical spring. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] This embodiment is a high-temperature resistant flange for an automotive air conditioning system.

[0028] like Figure 1-4 As shown, the device includes a cylindrical body 1. Flange bodies 2 are fixedly installed on the outer walls of both the upper and lower ends of the cylindrical body 1. An installation hole 4 is opened on the outer surface of the upper end of the flange body 2, and the installation hole 4 extends to the outer surface of the lower end of the flange body 2. A heat insulation layer 3 is fixedly installed on the inner wall of the cylindrical body 1. A pre-tightening structure 5 is installed at the end of the flange body 2 away from the cylindrical body 1. The pre-tightening structure 5 includes an annular mounting groove 6, a movable ring 7, and a helical spring 8. The annular mounting groove 6 is opened on the outer surface of the end of the flange body 2 away from the cylindrical body 1.

[0029] The helical spring 8 is located in the annular mounting groove 6. The lower outer surface of the helical spring 8 is fixedly connected to the bottom of the annular mounting groove 6, and the upper outer surface of the helical spring 8 is fixedly connected to the lower outer surface of the movable ring 7. The outer wall of the movable ring 7 is slidably connected to the annular mounting groove 6, and the lower outer surface of the movable ring 7 is elastically connected to the bottom of the annular mounting groove 6 through the helical spring 8. The heat insulation layer 3 is made of ceramic fiber material. The helical spring 8 is a nickel-based alloy spring. The heat insulation layer 3 is bonded to the inner wall of the cylinder 1 with a high-temperature adhesive, which is an inorganic silicate adhesive.

[0030] It should be noted that this utility model is a high-temperature resistant flange for an automotive air conditioning system. The cylinder 1, flange body 2, and mounting hole 4 described herein are all existing technologies and can be readily understood by those skilled in the art. Further details are omitted. A heat insulation layer 3 is provided, fixed to the inner wall of the cylinder 1. The inner wall of the heat insulation layer 3 is connected to the air conditioning pipe. The heat insulation layer 3 is made of ceramic fiber material and has excellent heat insulation properties. Through the pre-tightening structure 5, after the flange body 2 is connected to the external flange by bolts, the movable ring 7 in the pre-tightening structure 5 is squeezed into the annular mounting groove 6. The movable ring 7 compresses the helical spring 8 in the annular mounting groove 6. When the threaded connection is made, the helical spring 8 is in a compressed state. The reaction force of the helical spring 8 eliminates loosening after the threaded connection, preventing loosening caused by high-temperature deformation.

[0031] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A high-temperature resistant flange for an automotive air conditioning system, comprising a cylindrical body (1), characterized in that: Flange bodies (2) are fixedly installed on the outer walls of both the upper and lower ends of the cylinder (1). An installation hole (4) is opened on the upper outer surface of the flange body (2). The installation hole (4) extends to the lower outer surface of the flange body (2). A heat insulation layer (3) is fixedly installed on the inner wall of the cylinder (1). A pre-tightening structure (5) is installed on the end of the flange body (2) away from the cylinder (1). The pre-tightening structure (5) includes an annular mounting groove (6), a movable ring (7), and a helical spring (8). The annular mounting groove (6) is opened on the outer surface of the end of the flange body (2) away from the cylinder (1).

2. The high-temperature resistant flange for an automotive air conditioning system according to claim 1, characterized in that: The helical spring (8) is located in the annular mounting groove (6). The lower outer surface of the helical spring (8) is fixedly connected to the bottom of the annular mounting groove (6), and the upper outer surface of the helical spring (8) is fixedly connected to the lower outer surface of the movable ring (7).

3. The high-temperature resistant flange for an automotive air conditioning system according to claim 2, characterized in that: The outer wall of the movable ring (7) is slidably connected to the annular mounting groove (6), and the lower outer surface of the movable ring (7) is elastically connected to the bottom of the annular mounting groove (6) through a helical spring (8).

4. A high-temperature resistant flange for an automotive air conditioning system according to claim 3, characterized in that: The heat insulation layer (3) is made of ceramic fiber material.

5. A high-temperature resistant flange for an automotive air conditioning system according to claim 4, characterized in that: The helical spring (8) is a nickel-based alloy spring.

6. A high-temperature resistant flange for an automotive air conditioning system according to claim 5, characterized in that: The heat insulation layer (3) is bonded to the inner wall of the cylinder (1) by a high-temperature adhesive, which is an inorganic silicate adhesive.

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