Refrigerant connection pipe structure

Abstract

The utility model discloses a refrigeration connecting pipe structure belongs to compressor refrigeration technical field, including iron pipe and copper pipe, and iron pipe one end is provided with the slot, and the inner wall of slot is provided with the locating rib, and the copper pipe is positioned and inserted on the slot through the locating rib, and the periphery of iron pipe still integrally is provided with the locating ring. This connecting pipe adopts the plug -in of iron pipe and copper pipe and constitutes, guarantees the stable use of connecting pipe simultaneously, still effectively reduces production cost, and the inner wall of the slot of iron pipe is provided with the locating rib, and the positioning effect of utilizing the locating rib can effectively ensure that the iron pipe and copper pipe can realize the stable plug -in cooperation, and in addition, the locating ring is integrally arranged with the iron pipe to improve the structural strength of both, ensure that the connecting pipe and liquid accumulator can be stably connected, and the practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of compressor refrigeration technology, specifically a refrigeration connecting pipe structure. Background Technology

[0002] A compressor is a fluid machine that elevates low-pressure gas to high-pressure gas; it is the heart of a refrigeration system. Inside the compressor casing is a cylinder. During operation, low-temperature, low-pressure refrigerant gas enters the cylinder through the inlet pipe. After compression, the gas is discharged from the outlet pipe as high-temperature, high-pressure refrigerant gas, providing power for the refrigeration cycle and thus realizing the compression-condensation-expansion-evaporation refrigeration cycle. Because it cannot be guaranteed that the refrigerant will completely vaporize during the evaporation stage, a liquid receiver is installed between the compressor and the evaporator to prevent liquid refrigerant from entering the cylinder and causing liquid slugging. The cylinder and the liquid receiver are connected through the outlet pipe.

[0003] The connecting pipe (also known as the intake or exhaust pipe) is a crucial component of the liquid receiver. To ensure a stable connection between the liquid receiver and other components, the iron pipe section of the connecting pipe must be made of copper to guarantee welding stability. Most existing connecting pipes are integrally formed copper pipe structures, with one end welded to the liquid receiver for air intake, and the other end extending outside the liquid receiver for welding to other components, as disclosed in Chinese utility model patent CN201420227757.X, which describes a liquid receiver for an air conditioning compressor. While these copper connecting pipes ensure stable welding between the liquid receiver and other components, the high cost of copper leads to high production costs for mass-produced liquid receivers. Therefore, further improvements are necessary. Utility Model Content

[0004] The present invention aims to provide a refrigeration connection pipe structure to overcome the shortcomings of the prior art.

[0005] A refrigeration connection pipe structure designed for this purpose includes an iron pipe and a copper pipe. One end of the iron pipe is provided with a slot, and the inner wall of the slot is provided with a positioning rib. The copper pipe is positioned and inserted into the slot through the positioning rib. A positioning ring is also integrally provided on the outer periphery of the iron pipe.

[0006] The slot has a positioning step at the bottom, and the inner end of the copper tube is positioned on the positioning step.

[0007] A guide portion is provided at the opening of the slot, and the copper tube is inserted into the slot by being guided by the guide portion.

[0008] The positioning ring has a vertical portion on its outer side, an inclined portion on its end face near the copper tube, and a flat portion on its end face away from the copper tube.

[0009] The iron pipe has a connecting section at one end and an extension section at the other end. The outer diameter of the connecting section is larger than the outer diameter of the extension section. The slot and the positioning ring are located on the connecting section.

[0010] The iron pipe connecting section and the iron pipe extension section are on the same axis, or the iron pipe connecting section or the iron pipe extension section is bent.

[0011] One end of the copper tube is provided with a copper tube connecting section, and the other end is provided with a copper tube outward extension section. The copper tube connecting section is at least partially positioned and inserted into the slot, and the outer diameter of the copper tube connecting section is smaller than the outer diameter of the copper tube outward extension section.

[0012] An inclined diffusion section is provided between the copper pipe connecting section and the copper pipe outward extension section.

[0013] The copper tube connecting section, the copper tube outward extension section, and the inclined diffusion section are on the same axis.

[0014] Alternatively, the copper tube connecting section and the inclined diffusion section are on the same axis, and the copper tube outward extension section is bent.

[0015] Alternatively, the copper tube connecting section is bent, and the outwardly extending section of the copper tube and the inclined diffusion section are on the same axis.

[0016] Alternatively, the copper pipe connecting section and the copper pipe outward extension section may be bent.

[0017] The connecting pipe of this utility model is composed of iron pipe and copper pipe inserted together. While ensuring the stability of the connecting pipe, it also effectively reduces the production cost. Moreover, the inner wall of the slot of the iron pipe is provided with positioning ribs. The positioning effect of the positioning ribs can effectively ensure a stable insertion fit between the iron pipe and the copper pipe. In addition, the positioning ring is integrated with the iron pipe to improve the structural strength of both, ensuring a stable fit between the connecting pipe and the liquid reservoir. It is highly practical. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the dissected structure of an embodiment of the present invention.

[0019] Figure 2 for Figure 1 A magnified structural diagram at point A in the diagram.

[0020] Figure 3 This is a schematic diagram of the assembly cross-sectional structure of an embodiment of the present invention. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] See Figures 1-3 The refrigeration connection pipe structure includes an iron pipe 1 and a copper pipe 2. One end of the iron pipe 1 is provided with a slot 1.1, and the inner wall of the slot 1.1 is provided with a positioning rib 1.2. The copper pipe 2 is positioned and inserted into the slot 1.1 through the positioning rib 1.2. The iron pipe 1 is also integrally provided with a positioning ring 1.3.

[0024] In this embodiment, the connecting pipe is constructed by inserting an iron pipe 1 and a copper pipe 2. This not only ensures the stability of the connecting pipe but also effectively reduces production costs. Furthermore, the inner wall of the slot 1.1 of the iron pipe 1 is provided with a positioning rib 1.2. The positioning rib 1.2 effectively ensures a stable insertion fit between the iron pipe 1 and the copper pipe 2. In addition, the positioning ring 1.3 is integrally set with the iron pipe 1 to improve the structural strength of both and ensure a stable fit between the connecting pipe and the liquid reservoir. This design is highly practical.

[0025] The bottom of the slot 1.1 is provided with a positioning step 1.4. The inner end of the copper tube 2 is positioned on the positioning step 1.4, thereby enabling the copper tube 2 to be effectively positioned and inserted into the iron tube 1.

[0026] A guide part 1.5 is provided at the opening of the slot 1.1. The copper tube 2 is guided into the slot 1.1 through the guide part 1.5, so that the copper tube 2 can be easily inserted into the iron tube 1.

[0027] The positioning ring 1.3 has a vertical part 1.6 on its outer side, an inclined part 1.7 on its end face near the copper tube 2, and a flat part 1.8 on its end face away from the copper tube 2.

[0028] In this embodiment, when the connecting pipe is welded to the reservoir, the inclined part 1.7 is adapted to the cover of the reservoir, so that the connecting pipe and the top cover of the reservoir can be stably connected, making the subsequent welding of the two more stable, thereby improving the overall quality of the reservoir.

[0029] One end of the iron pipe 1 is provided with an iron pipe connecting section 1.9, and the other end is provided with an iron pipe extension section 1.10. The outer diameter of the iron pipe connecting section 1.9 is larger than the outer diameter of the iron pipe extension section 1.10. The slot 1.1 and the positioning ring 1.3 are provided on the iron pipe connecting section 1.9.

[0030] In this embodiment, the iron pipe connecting section 1.9 is relatively large and is used to connect with the copper pipe 2, thus improving the structural strength of the iron pipe 1 when the copper pipe 2 is inserted.

[0031] The iron pipe connecting section 1.9 and the iron pipe extension section 1.10 are on the same axis, that is, both the iron pipe connecting section 1.9 and the iron pipe extension section 1.10 are set in a straight line, so that the entire iron pipe 1 is a straight pipe.

[0032] Alternatively, the iron pipe connecting section 1.9 or the iron pipe extension section 1.10 may be bent, i.e., the iron pipe connecting section 1.9 may be straight and the iron pipe extension section 1.10 may be bent, or the iron pipe connecting section 1.9 may be bent and the iron pipe extension section 1.10 may be straight, or both the iron pipe connecting section 1.9 and the iron pipe extension section 1.10 may be bent, making the entire iron pipe 1 a bent pipe.

[0033] One end of the copper tube 2 is provided with a copper tube connecting section 2.1, and the other end is provided with a copper tube outward extension section 2.2. The copper tube connecting section 2.1 is at least partially positioned and inserted into the slot 1.1, and the outer diameter of the copper tube connecting section 2.1 is smaller than the outer diameter of the copper tube outward extension section 2.2.

[0034] In this embodiment, the copper tube extension section 2.2 is larger in size, which facilitates its connection with other external tubes.

[0035] An inclined diffusion section 2.3 is provided between the copper pipe connecting section 2.1 and the copper pipe outward extension section 2.2.

[0036] The copper pipe connecting section 2.1, the copper pipe outward extension section 2.2, and the inclined diffusion section 2.3 are all on the same axis. That is, the copper pipe connecting section 2.1, the copper pipe outward extension section 2.2, and the inclined diffusion section 2.3 are all set in a straight line, making the entire copper pipe 2 a straight pipe.

[0037] Alternatively, the copper pipe connecting section 2.1 and the inclined diffusion section 2.3 are on the same axis, and the copper pipe outward extension section 2.2 is bent. That is, the copper pipe connecting section 2.1 and the inclined diffusion section 2.3 are both straight, and the copper pipe outward extension section 2.2 is bent, making the entire copper pipe 2 a bent pipe.

[0038] Alternatively, the copper pipe connecting section 2.1 is bent, and the copper pipe outward extension section 2.2 and the inclined diffusion section 2.3 are on the same axis. That is, the copper pipe outward extension section 2.2 and the inclined diffusion section 2.3 are both straight, while the copper pipe connecting section 2.1 is bent, making the entire copper pipe 2 a bent pipe.

[0039] Alternatively, the copper pipe connecting section 2.1 and the copper pipe outward extension section 2.2 are bent. That is, both the copper pipe connecting section 2.1 and the copper pipe outward extension section 2.2 are bent, making the entire copper pipe 2 a bent pipe.

[0040] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. 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 without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A refrigeration connecting pipe structure, characterized in that: It includes an iron pipe (1) and a copper pipe (2). One end of the iron pipe (1) is provided with a slot (1.1). The inner wall of the slot (1.1) is provided with a positioning rib (1.2). The copper pipe (2) is positioned and inserted into the slot (1.1) through the positioning rib (1.2). The iron pipe (1) is also integrally provided with a positioning ring (1.3) around its periphery.

2. The refrigeration connecting pipe structure according to claim 1, characterized in that: The slot (1.1) has a positioning step (1.4) at its bottom, and the inner end of the copper tube (2) is positioned on the positioning step (1.4).

3. The refrigeration connecting pipe structure according to claim 1, characterized in that: The slot (1.1) is provided with a guide (1.5) at the opening, and the copper tube (2) is inserted into the slot (1.1) through the guide (1.5).

4. The refrigeration connecting pipe structure according to claim 1, characterized in that: The positioning ring (1.3) has a vertical part (1.6) on its outer side, an inclined part (1.7) on its end face near the copper tube (2), and a flat part (1.8) on its end face away from the copper tube (2).

5. The refrigeration connecting pipe structure according to claim 1, characterized in that: The iron pipe (1) has an iron pipe connecting section (1.9) at one end and an iron pipe extension section (1.10) at the other end. The outer diameter of the iron pipe connecting section (1.9) is larger than the outer diameter of the iron pipe extension section (1.10). The slot (1.1) and the positioning ring (1.3) are provided on the iron pipe connecting section (1.9).

6. The refrigeration connecting pipe structure according to claim 5, characterized in that: The iron pipe connecting section (1.9) and the iron pipe extension section (1.10) are on the same axis, or the iron pipe connecting section (1.9) or the iron pipe extension section (1.10) is bent.

7. The refrigeration connecting pipe structure according to any one of claims 1-6, characterized in that: The copper tube (2) has a copper tube connecting section (2.1) at one end and a copper tube outward extension section (2.2) at the other end. The copper tube connecting section (2.1) is at least partially positioned and inserted into the slot (1.1). The outer diameter of the copper tube connecting section (2.1) is smaller than the outer diameter of the copper tube outward extension section (2.2).

8. The refrigeration connecting pipe structure according to claim 7, characterized in that: An inclined diffusion section (2.3) is provided between the copper pipe connecting section (2.1) and the copper pipe outward extension section (2.2).

9. The refrigeration connecting pipe structure according to claim 8, characterized in that: The copper tube connecting section (2.1), the copper tube outward extension section (2.2), and the inclined diffusion section (2.3) are on the same axis; Alternatively, the copper tube connecting section (2.1) and the inclined diffusion section (2.3) are on the same axis, and the copper tube outward extension section (2.2) is bent. Alternatively, the copper tube connecting section (2.1) is bent, and the copper tube outward extension section (2.2) and the inclined diffusion section (2.3) are on the same axis; Alternatively, the copper pipe connecting section (2.1) and the copper pipe outward extension section (2.2) are bent.

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