Air conditioner evaporator input pipe assembly

Abstract

The utility model discloses an air conditioner evaporator input pipe assembly which comprises an input pipe, a connecting pipe, a first flow dividing capillary pipe, a second flow dividing capillary pipe, a third flow dividing capillary pipe and a fourth flow dividing capillary pipe, a pipe connector is arranged at one end of the input pipe, and the bottom end of the connecting pipe is connected with the other end of the input pipe. The side wall of the connecting pipe is provided with three first connecting holes, the three first connecting holes are correspondingly matched with the first shunting capillary tube, the second shunting capillary tube and the third shunting capillary tube respectively, the top end of the connecting pipe is provided with a second connecting hole, and the fourth shunting capillary tube is matched with the second connecting hole. The three first connecting holes are formed in the side wall of the connecting pipe, and the second connecting hole is formed in the top end of the connecting pipe, so that the connecting pipe can be conveniently connected with a plurality of flow dividing capillary pipes, the first connecting holes are conveniently formed, flow dividing of refrigerants is facilitated, different distribution requirements are met, and the application range is widened.

Description

Technical Field

[0001] The utility model belongs to a pipe structure for an air-conditioning evaporator, in particular to an air-conditioning evaporator input pipe component. Background Art

[0002] At present, the evaporator input pipe assembly used in air conditioners all uses an input pipe with a larger diameter to the vicinity of the evaporator inlet, and then uses a splitter to split it into two or more paths, and then connects it to the evaporator. It is difficult for the evaporator input pipe assembly of this structure to achieve a good splitting effect, and it is even more impossible to adjust the flow of the split path according to needs. In addition, the pipe diameter used is relatively large, the cost is high, and a splitter is used in the middle to transfer, the structure is complex, and the production efficiency is low. In order to reduce costs and simplify the structure, the application number 201621410716.X discloses a split air conditioner, an indoor unit and an evaporator input pipe assembly thereof, and discloses an input pipe assembly, which realizes splitting by connecting two split capillaries on the input pipe. However, when the split capillary of this type of input pipe assembly is connected to the input pipe, a reserved position is pressed out at one end of the input pipe. This type of input pipe assembly is not suitable for connecting and distributing more branches, and its use is greatly restricted. Utility Model Content

[0003] The purpose of the utility model is to provide an air-conditioning evaporator inlet pipe assembly which can solve at least one of the above problems.

[0004] According to one aspect of the utility model, an air-conditioning evaporator inlet pipe assembly is provided, comprising an inlet pipe, a connecting pipe, a first diverter capillary, a second diverter capillary, a third diverter capillary and a fourth diverter capillary, a pipe joint is provided at one end of the inlet pipe, the bottom end of the connecting pipe is connected to the other end of the inlet pipe, three first connecting holes are provided on the side wall of the connecting pipe, the three first connecting holes respectively correspond to the first diverter capillary, the second diverter capillary and the third diverter capillary, a second connecting hole is provided at the top end of the connecting pipe, and the fourth diverter capillary cooperates with the second connecting hole.

[0005] The beneficial effect of the utility model is that by providing three first connecting holes on the side wall of the connecting pipe and a second connecting hole on the top, the connecting pipe can be conveniently connected to multiple diversion capillaries, and multiple first connecting holes can be opened, thereby facilitating the diversion of the refrigerant, meeting different distribution requirements, and increasing the scope of application.

[0006] In some embodiments, the diameter of the first connecting hole is equal to the diameter of the second connecting hole, thereby facilitating the uniform distribution of the refrigerant in each flow-dividing capillary tube, thereby ensuring the cooling or heating effect of the air-conditioning evaporator.

[0007] In some embodiments, a constricted portion is provided at the top of the connecting tube, the second connecting hole is located at the constricted portion, the constricted portion and the connecting tube are transitioned through a tapered portion, and the inner diameter of the connecting tube is larger than the aperture of the second connecting hole. Thus, the constricted portion is provided to facilitate the opening of the second connecting hole, and the tapered portion is provided to facilitate the flow rate of the refrigerant when it flows from a large diameter to a small diameter, thereby avoiding the accumulation of fluid at the constricted portion.

[0008] In some embodiments, the connecting tube includes a horizontal tube and an inclined tube, the angle between the horizontal tube and the inclined tube is 45-60 degrees, the first connecting hole and the second connecting hole are both located on the inclined tube, and one end of the horizontal tube is connected to the input tube. Thus, by providing the inclined tube, it is convenient to connect each flow dividing capillary tube to each external structure after being connected to the inclined tube.

[0009] In some embodiments, the horizontal pipe and the inclined pipe are transitioned through an arc portion. Thus, the arc portion facilitates the smooth flow of the fluid in the connecting pipe and avoids the accumulation of the fluid in the connecting pipe.

[0010] In some embodiments, the outer walls of the first flow dividing capillary, the second flow dividing capillary, the third flow dividing capillary, and the fourth flow dividing capillary are all provided with positioning points, which correspond to the corresponding first connection hole and the second connection hole and are located outside the first connection hole and the second connection hole. Thus, by providing the positioning points, the depth of each flow dividing capillary inserted into the corresponding connection hole can be limited, the insertion position of the flow dividing capillary is limited, and the rapid assembly of each flow dividing capillary in the connection hole is facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The utility model is a structural schematic diagram of an air conditioner evaporator inlet pipe assembly.

[0012] Figure 2 It is a structural schematic diagram of the air conditioner evaporator inlet pipe assembly of the utility model from another perspective.

[0013] Figure 3 The utility model is a structural schematic diagram of a connecting pipe in an air conditioner evaporator input pipe assembly.

[0014] Figure 4 It is a structural schematic diagram of the third flow-dividing capillary tube in the air-conditioning evaporator inlet pipe assembly of the utility model. DETAILED DESCRIPTION

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0016] Reference Figure 1 to Figure 4The air conditioner evaporator input pipe assembly comprises an input pipe 1, a connecting pipe 2, a first flow dividing capillary 3, a second flow dividing capillary 4, a third flow dividing capillary 5 and a fourth flow dividing capillary 6. A pipe joint 7 is provided at one end of the input pipe 1, and the bottom end of the connecting pipe 2 is connected to the other end of the input pipe 1. The side wall of the connecting pipe 2 is provided with three first connecting holes 21, and the three first connecting holes 21 respectively correspond to the first flow dividing capillary 3, the second flow dividing capillary 4 and the third flow dividing capillary 5. A second connecting hole 22 is provided at the top end of the connecting pipe 2, and the fourth flow dividing capillary 6 cooperates with the second connecting hole 22.

[0017] In actual use, the pipe joint 7 can facilitate the connection between the input pipe 1 and the corresponding structure of the air conditioner. During cooling, the refrigerant of the air conditioner is transported to the input pipe 1, then enters the connecting pipe 2, and then is diverted through the first diversion capillary 3, the second diversion capillary 4, the third diversion capillary 5 and the fourth diversion capillary 6.

[0018] The aperture of the first connecting hole 21 is equal to the aperture of the second connecting hole 22. Therefore, the inner diameters of the flow-dividing capillaries 3 are kept consistent, so that the flow rate and flow velocity of the refrigerant passing through the flow-dividing capillaries 3 are kept basically consistent, so that the refrigerant is evenly diverted to each evaporator to meet the corresponding refrigeration function.

[0019] A constricted portion 23 is provided at the top of the connecting tube 2 , and the second connecting hole 22 is located at the constricted portion 23 . The constricted portion 23 and the connecting tube 2 transition through a tapered portion 24 . The inner diameter of the connecting tube 2 is larger than the aperture of the second connecting hole 22 .

[0020] The connecting pipe 2 includes a horizontal pipe 25 and an inclined pipe 26, the angle between the horizontal pipe 25 and the inclined pipe 26 is 45-60 degrees, the first connecting hole 21 and the second connecting hole 22 are both located on the inclined pipe 26, and one end of the horizontal pipe 25 is connected to the input pipe 1. The outer diameter of the horizontal pipe 25 is consistent with the inner diameter of the input pipe 1, so that the end of the horizontal pipe 25 can be inserted into the end of the other end of the input pipe 1, and then further strengthened and fixed by welding. By providing the horizontal pipe 25 and the inclined pipe 26, the direction of the input pipe 1 can be easily changed, and by providing the connecting pipe 2, the final connection direction of the connecting pipe 2 can be adjusted to meet the actual connection with the corresponding evaporator.

[0021] The horizontal tube 25 and the inclined tube 26 transition through the arc portion 27. Thus, by providing the arc portion 27, the fluid can flow smoothly from the horizontal tube 25 to the inclined tube 26, avoiding the accumulation of the fluid in the connecting tube 2, and facilitating the smooth transportation of the refrigerant.

[0022] The outer walls of the first shunt capillary 3, the second shunt capillary 4, the third shunt capillary 5 and the fourth shunt capillary 6 are all provided with positioning points 8, which correspond to the corresponding first connecting hole 21 and the second connecting hole 22 and are located outside the first connecting hole 21 and the second connecting hole 22. Among them, the positioning points 8 are convex points formed on the outer walls of each shunt capillary, and there are two positioning points 8 on the outer walls of each shunt capillary. The outer diameters of the first shunt capillary 3, the second shunt capillary 4 and the third shunt capillary 5 are consistent with the aperture of the first connecting hole 21, and the ends of the corresponding shunt capillaries are inserted into the corresponding first connecting hole 21. When each shunt capillary is inserted inwardly to the positioning point 8, since the positioning point 8 is in a protruding state, the positioning point 8 plays a limiting role on the shunt capillary, so that the shunt capillary will not continue to be inserted downward. Similarly, the positioning point 8 on the outer wall of the fourth shunt capillary 6 limits the depth of its insertion into the second connecting hole 22. After each shunt capillary is inserted into the corresponding connecting hole, the corresponding shunt capillary is fixed to the connecting hole by welding, which is convenient for positioning and fixing.

[0023] The air conditioner evaporator inlet pipe assembly of the utility model can facilitate the adjustment of the input direction of the inlet pipe 1 and the opening of various connection holes by connecting the connecting pipe 2, thereby facilitating the connection of the connecting pipe with multiple flow-dividing capillaries.

[0024] The above are only preferred implementations of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. Air conditioner evaporator inlet pipe assembly, characterized in that: The invention comprises an input tube (1), a connecting tube (2), a first flow dividing capillary (3), a second flow dividing capillary (4), a third flow dividing capillary (5) and a fourth flow dividing capillary (6); one end of the input tube (1) is provided with a pipe joint (7); the bottom end of the connecting tube (2) is connected to the other end of the input tube (1); the side wall of the connecting tube (2) is provided with three first connecting holes (21); the three first connecting holes (21) respectively correspond to the first flow dividing capillary (3), the second flow dividing capillary (4) and the third flow dividing capillary (5); the top end of the connecting tube (2) is provided with a second connecting hole (22); the fourth flow dividing capillary (6) is matched with the second connecting hole (22).

2. The air conditioner evaporator inlet pipe assembly according to claim 1, characterized in that: The diameter of the first connecting hole (21) is equal to the diameter of the second connecting hole (22).

3. The air conditioner evaporator inlet pipe assembly according to claim 2, characterized in that: The top end of the connecting tube (2) is provided with a necking portion (23), the second connecting hole (22) is located at the necking portion (23), the necking portion (23) and the connecting tube (2) transition through a tapered portion (24), and the inner diameter of the connecting tube (2) is greater than the aperture of the second connecting hole (22).

4. The air conditioner evaporator inlet pipe assembly according to any one of claims 1 to 3, characterized in that: The connecting pipe (2) comprises a horizontal pipe (25) and an inclined pipe (26); the angle between the horizontal pipe (25) and the inclined pipe (26) is 45 to 60 degrees; the first connecting hole (21) and the second connecting hole (22) are both located on the inclined pipe (26); and one end of the horizontal pipe (25) is connected to the input pipe (1).

5. The air conditioner evaporator inlet pipe assembly according to claim 4, characterized in that: The horizontal tube (25) and the inclined tube (26) are transitioned through an arc portion (27).

6. The air conditioner evaporator inlet pipe assembly according to any one of claims 1 to 3, characterized in that: The outer walls of the first shunt capillary (3), the second shunt capillary (4), the third shunt capillary (5) and the fourth shunt capillary (6) are each provided with a positioning point (8), the positioning point (8) corresponding to the corresponding first connecting hole (21) and the second connecting hole (22), and located outside the first connecting hole (21) and the second connecting hole (22).

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