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Joint member and unit for air conditioning device

A technology for parts and cylindrical parts, applied in the field of joint parts and air-conditioning units, can solve problems such as leakage and insufficient sealing

Inactive Publication Date: 2021-08-06
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the following problems may occur: the sealing between the tapered surface of the reduced diameter at the tip of the joint body and the tapered surface of the sleeve becomes insufficient, and moisture or oxygen enters the pipe from the outside, or refrigerant or refrigerating machine oil, etc. Leak out from the pipe to the outside

Method used

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  • Joint member and unit for air conditioning device
  • Joint member and unit for air conditioning device
  • Joint member and unit for air conditioning device

Examples

Experimental program
Comparison scheme
Effect test

Deformed example 2

[0085] Figure 6 It is an enlarged longitudinal cross-sectional view showing a state in the middle of connection after the pipe 12 in which the joint member 100 according to Modification 2 is inserted and before the cylindrical member 80 is deformed. It should be noted that, in Figure 6 in, right with Figure 1 to Figure 3 The same reference numerals are assigned to the same components as those in the above-mentioned embodiment shown.

[0086] The difference between this modification 2 and the above-mentioned embodiment is that, as Figure 6 As shown, the joint sealing member 83 has at least one performance of refrigerant resistance and refrigerating machine oil resistance, and is provided at least on the inner peripheral side of the second tapered surface 81 of the cylindrical member 80 . For example, as the joint sealing member 83 , a sealing layer made of a resin or the like having at least one performance of refrigerant resistance and refrigerating machine oil resistan...

Deformed example 3

[0089] Figure 7 It is an enlarged longitudinal cross-sectional view showing a state in the middle of connection after the pipe 12 in which the joint member 100 according to Modification 3 is inserted and before the cylindrical member 80 is deformed. It should be noted that, in Figure 7 in, right with Figure 1 to Figure 3 The same reference numerals are assigned to the same components as those in the above-mentioned embodiment shown.

[0090] The difference between this modification 3 and the above-mentioned embodiment is that, as Figure 7 As shown, the joint sealing member 83 is disposed in a groove 86 formed on the second tapered surface 81 of the barrel member 80 .

[0091] According to the present Modification 3, it is possible to arrange, for example, an O-ring as the joint sealing member 83 in the groove 86 formed on the second tapered surface 81 of the cylindrical member 80 .

[0092]

[0093] Figure 8 It is an enlarged longitudinal cross-sectional view showi...

Deformed example 7

[0120] Figure 11 It is an enlarged longitudinal cross-sectional view illustrating a state in the middle of connection after insertion of the pipe 12 in which the joint member 100 according to Modification 7 is located and before deformation of the pipe fixing member 90 described later. exist Figure 11 in, right with Figure 1 to Figure 3 The same reference numerals are assigned to the same components as those in the above-mentioned embodiment shown. The differences between the seventh modification and the above-mentioned embodiment are as follows.

[0121] Such as Figure 11 As shown, there is a distance between the cylindrical member 80 and the nut diameter reducing portion 72 . Between the cylindrical member 80 in the space S and the nut diameter reduction part 72, the pipe fixing member 90 which surrounds the outer peripheral surface of the pipe 12 is arrange|positioned. The pipe fixing member 90 is composed of, for example, a leverage ring (Leverage Ring) having a p...

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PUM

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Abstract

A joint member (100) is provided with a nut (70) and a cylindrical member (80). The nut (70) comprises a female thread section (73) fastened to a male thread section (62) of a joint body (61), and piping (12) is inserted in said nut (70). The cylindrical member (80) is arranged in a space (S) surrounded by the joint body (61), the nut (70), and the piping (12). A tip section of the joint body (61) comprises a first tapered surface (63) that narrows toward the tip thereof. The cylindrical member (80) comprises a second tapered surface (81) that presses against the first tapered surface (63). A joint seal member (83) for sealing the interval between the second tapered surface (81) and the first tapered surface (63) is provided to the second tapered surface (81).

Description

technical field [0001] The disclosure relates to a joint component and a unit for an air conditioner. Background technique [0002] Patent Document 1 discloses a joint member applied to an air conditioner or the like. The joint member has a nut and a sleeve accommodated inside the nut. When the nut is fastened to the joint body with the pipe inserted into the nut, the sleeve deforms in the radial direction, and the sleeve comes into close contact with the pipe. The pipe is thereby secured to the joint part. The sealing between the outer peripheral surface of the pipe and the inner peripheral surface of the sleeve is carried out by setting a sealing layer on the inner peripheral surface of the sleeve. [0003] Patent Document 1: Japanese Patent Publication No. 5276215 Contents of the invention [0004] -The technical problem to be solved by the invention- [0005] In the joint member described in Patent Document 1, the sealing between the tapered surface at the distal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L19/12F16J15/08F24F1/0068F24F1/26
CPCF24F1/26F16L19/065F16L19/061F16J15/062F16J15/104F16J15/0881F16L57/005
Inventor 大谷康崇野内义照
Owner DAIKIN IND LTD