A solderless dual tube reservoir

Abstract

The application discloses a solderless double-pipe liquid reservoir, which comprises a cylinder, an air inlet pipe and an air outlet pipe; the cylinder comprises an air inlet end formed by spinning at one end, the air inlet pipe is connected and fixed to the air inlet end, the cylinder further comprises an air outlet end provided with two air outlet holes at the other end, and two air outlet pipes are connected to the air outlet end by penetrating through the two air outlet holes respectively. The liquid reservoir of the application can reduce the cost without increasing the welding times, effectively balances the cost and environmental protection, and solves the connection quality problem caused by welding, thereby solving the problems of the prior art.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioning liquid receivers, specifically relating to a solderless dual-tube liquid receiver. Background Technology

[0002] In the air conditioning manufacturing industry, the receiver, as a key component, requires reliable welding to the corresponding pipes of the compressor via its inlet and outlet pipes. Given that compressor pipes are generally made of copper, the traditional industry practice to achieve good welding compatibility is to integrally mold the receiver's inlet and outlet pipes from copper and then fix them to the steel receiver body by brazing. While this all-copper pipe structure ensures material consistency at the welded ends and the welding process is simple and reliable, it results in high costs. To address cost pressures, the industry is currently working to combine lower-cost metals with the receiver to reduce costs. However, while this improvement may reduce costs, it increases the overall number of welds and the complexity of the process, especially for dual-pipe receivers. This not only raises the requirements for weld quality but also lowers the overall environmental standards of the process due to the large amount of solder used. Therefore, a new solution is urgently needed that can effectively control costs while avoiding or reducing welding pollution. Utility Model Content

[0003] To address the aforementioned issues, this utility model proposes a solderless dual-tube liquid reservoir. Copper plating is applied to the ends of the inlet and outlet pipes to facilitate welding with other air conditioning pipes. The remaining parts are made of iron to reduce costs. Furthermore, the copper plating eliminates the need for welding, preventing the burning of solder and avoiding environmental problems. Additionally, the inlet and outlet pipes are connected to the cylinder using resistance welding, resulting in a fully soldered structure and improved environmental friendliness.

[0004] The specific solution is as follows: a solderless dual-tube liquid reservoir, including a cylinder, an air inlet pipe, and an air outlet pipe; the cylinder includes an air inlet end that is spun at one end, and the air inlet pipe is connected and fixed to the air inlet end; the cylinder also includes an air outlet end that is provided with two air outlet holes at the other end, and the two air outlet pipes pass through the two air outlet holes and are connected to the air outlet end respectively.

[0005] Preferably, the cylinder further includes a straight section located between the air inlet end and the air outlet end, a fixing frame is provided in the straight section near the air outlet end, and a filter element is provided in the straight section near the air inlet end.

[0006] Preferably, the two air outlet pipes extend from the air outlet into the inside of the straight cylinder, pass through the fixing frame, and extend to the filter element.

[0007] Preferably, one end of the intake pipe is provided with a first welded component, which is resistively welded to the intake end, and the other end of the intake pipe is provided with a first copper plating layer.

[0008] Preferably, the vent pipe includes a bent section located outside the cylinder and a straight section extending into the cylinder. The bent section and the straight section are integrally connected. A second welded component is provided at the position of the straight section relative to the vent hole. The second welded component is resistance welded to the vent end. A second copper plating layer is provided at the port of the bent section.

[0009] The exhaust pipe, intake pipe, and cylinder are connected by resistance welding to avoid the use of solder, improve environmental protection, and reduce costs. At the same time, the exhaust pipe and intake pipe are made of iron, and copper plating is electroplated on their ends to facilitate welding with other air conditioning pipes.

[0010] Preferably, the straight section is provided with two fixing grooves to fix the fixing frame and the filter element, and the two fixing grooves are connected to the fixing frame or the filter element.

[0011] Preferably, the fixing groove is formed by the inward indentation of the straight cylindrical section wall to form a protrusion on both sides of the straight cylindrical section relative to the fixing frame or filter element, so as to restrict the fixing frame or filter element.

[0012] The cylinder body is formed by stretching in one piece, and the air inlet end is spun to reduce welding points and avoid the use of solder.

[0013] Preferably, the air intake end includes a conical part and a cylindrical part, one end of the conical part is connected to the straight cylindrical part, and the other end is connected to the cylindrical part. The cylindrical part is sleeved on the first welding part and resistively welded to it.

[0014] Preferably, the air outlet end includes an arc-shaped part and a flat part, the arc-shaped part is connected to the straight cylindrical part and the flat part, and the flat part has two air outlet holes distributed along the axis of the cylinder. The air outlet holes are provided with welding plates on the outside to cooperate with the second welding part. The welding plates are provided to facilitate cooperation with the second welding part and to facilitate welding.

[0015] Preferably, the filter element includes a perforated disc and a filter screen, which are fitted together. The perforated disc has multiple perforations arranged in a circumferential array along the axis of the cylinder.

[0016] The beneficial effects of this utility model are as follows: (1) The liquid storage device of this utility model reduces costs without increasing the number of welding operations, effectively solving the balance between cost and environmental protection, and eliminating concerns about connection quality issues caused by welding, thus solving the problems of the prior art.

[0017] (2) The entire structure of this utility model does not require flame brazing, thus avoiding the use of solder, improving safety, and also improving environmental protection. (3) The cylinder, air inlet pipe and air outlet pipe of this utility model are all integrally formed and connected, which reduces the number of welding points, improves the connection strength and product quality, and improves production efficiency. Attached Figure Description

[0018] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the internal structure of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the air outlet structure of an embodiment of the present invention; Figure 4 This is a schematic diagram of the filter element structure according to an embodiment of the present utility model; Figure 5 This is a cross-sectional view of the filter element structure according to an embodiment of the present utility model; In the attached drawings: 1-cylinder, 11-inlet end, 111-conical part, 112-columnar part, 12-straight cylinder part, 121-fixed groove, 13-outlet end, 131-arc-shaped part, 132-flat part, 133-outlet hole, 134-welding piece, 14-fixed frame, 15-filter element, 151-hollowed-out disc, 152-filter screen, 2-inlet pipe, 21-first welded part, 22-first copper plating layer, 3-outlet pipe, 31-straight pipe part, 32-bent pipe part, 33-second welded part, 34-second copper plating layer. Detailed Implementation

[0020] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0021] In the description of this application, it should be understood that the terms indicating connection relationships should be interpreted broadly. In this application, the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0022] A solderless dual-tube liquid reservoir includes a cylinder 1, an air inlet pipe 2, and an air outlet pipe 3. The cylinder 1 includes an air inlet end 11 formed by spinning at one end, and the air inlet pipe 2 is fixed to the air inlet end 11 by resistance welding. The cylinder 1 also includes an air outlet end 13 located at the other end with two air outlet holes 133, and the two air outlet pipes 3 are respectively connected to the air outlet end 13 through the two air outlet holes 133.

[0023] One end of the intake pipe 2 is provided with a first welded part 21, which is resistively welded to the intake end 11. The other end of the intake pipe 2 is provided with a first copper plating layer 22.

[0024] The vent pipe 3 includes a bent pipe section 32 located outside the cylinder 1 and a straight pipe section 31 extending into the cylinder 1. The bent pipe section 32 and the straight pipe section 31 are integrally connected. The straight pipe section 31 is provided with a second welded part 33 at the position opposite to the vent hole 133. The second welded part 33 is resistively welded to the vent end 13. The port of the bent pipe section 32 is provided with a second copper plating layer 34.

[0025] The cylinder 1 also includes a straight cylindrical section 12 located between the air inlet end 11 and the air outlet end 13. A fixing groove 121 is provided in the straight cylindrical section 12 near the air outlet end 13 to fix the fixing frame 14. A fixing groove 121 is provided in the straight cylindrical section 12 near the air inlet end 11 to fix the filter element 15. Two air outlet pipes 3 extend into the straight cylindrical section 12 from the air outlet hole 133, pass through the fixing frame 14 and extend to the filter element 15.

[0026] The fixing groove 121 is a recessed section of the straight cylindrical part 12, forming a protrusion on both sides of the fixing frame 14 or filter element 15 inside the straight cylindrical part 12 to restrict the fixing frame 14 or filter element 15.

[0027] The air intake end 11 includes a conical part 111 and a cylindrical part 112. One end of the conical part 111 is connected to the straight cylindrical part 12, and the other end is connected to the cylindrical part 112. The cylindrical part 112 is sleeved on the first welding part 21 and resistively welded to it. The conical part 111, the cylindrical part 112, and the straight cylindrical part 12 are integrally connected by spinning.

[0028] The air outlet 13 includes an arc-shaped portion 131 and a flat portion 132. The arc-shaped portion 131 is connected to the straight cylindrical portion 12 and the flat portion 132. The flat portion 132 has two air outlet holes 133 distributed along the axis of the cylinder 1. The air outlet holes 133 have welding pieces 134 on their outer sides that cooperate with the second welding part 33. The arc-shaped portion 131, the flat portion 132, and the straight cylindrical portion 12 are integrally formed by stretching.

[0029] The filter element 15 includes a perforated disc 151 and a filter screen 152. The filter screen 152 and the perforated disc 151 are fitted together. The perforated disc 151 has multiple holes arranged in a circumferential array along the axis of the cylinder 1.

[0030] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0031] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0032] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A solderless dual-tube liquid reservoir, characterized in that, Includes the cylinder, air inlet pipe, and air outlet pipe; The cylinder includes an air inlet end formed by spinning at one end, and the air inlet pipe is connected and fixed to the air inlet end. The cylinder also includes an air outlet end with two air outlet holes at the other end, and the two air outlet pipes pass through the two air outlet holes and are connected to the air outlet end.

2. The solderless dual-tube liquid reservoir according to claim 1, characterized in that, The cylinder body also includes a straight section located between the air inlet end and the air outlet end. A fixing frame is provided in the straight section near the air outlet end, and a filter element is provided in the straight section near the air inlet end.

3. The solderless dual-tube liquid reservoir according to claim 2, characterized in that, The two air outlet pipes extend from the air outlet into the interior of the straight section, pass through the fixing frame, and extend to the filter element.

4. A solderless dual-tube liquid reservoir according to claim 2, characterized in that, One end of the intake pipe is provided with an integrally connected first welded component, which is resistance welded to the intake end, and the other end of the intake pipe is provided with a first copper plating layer.

5. A solderless dual-tube liquid reservoir according to claim 2, characterized in that, The vent pipe includes a bent section located outside the cylinder and a straight section extending into the cylinder. The bent section and the straight section are integrally connected. A second welded component is provided on the straight section relative to the vent hole. The second welded component is resistance welded to the vent end. A second copper plating layer is provided at the port of the bent section.

6. A solderless dual-tube liquid reservoir according to claim 2, characterized in that, The straight cylindrical section is provided with two fixing slots to fix the fixing frame and the filter element, and the two fixing slots are connected to the fixing frame or the filter element.

7. A solderless dual-tube liquid reservoir according to claim 6, characterized in that, The fixing groove is formed by the wall of the straight cylindrical portion being recessed inward to form a protrusion at a position inside the straight cylindrical portion relative to both sides of the fixing frame or the filter element, so as to restrict the fixing frame or the filter element.

8. A solderless dual-tube liquid reservoir according to claim 4, characterized in that, The air intake end includes a conical part and a cylindrical part. One end of the conical part is connected to the straight cylindrical part, and the other end is connected to the cylindrical part. The cylindrical part is sleeved on the first welded part and resistively welded to it.

9. A solderless dual-tube liquid reservoir according to claim 5, characterized in that, The air outlet includes an arc-shaped portion and a flat portion. The arc-shaped portion connects the straight cylindrical portion and the flat portion. The flat portion has two air outlet holes distributed along the axis of the cylindrical body. The air outlet holes have welding plates on their outer sides that cooperate with the second welded part.

10. A solderless dual-tube liquid reservoir according to claim 2, characterized in that, The filter element includes a perforated disc and a filter screen, which are fitted together. The perforated disc has multiple perforations arranged in a circumferential array along the axis of the cylinder.

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