Output pipe structure of evaporator

Abstract

The utility model discloses an output pipe structure of an evaporator, which comprises a first branch pipe and a second branch pipe, the first branch pipe and the second branch pipe are of hollow structures, one end of the first branch pipe is provided with a connecting piece, the other end of the first branch pipe is connected with the second branch pipe, and the first branch pipe is connected with the second branch pipe. The first branch pipe is sleeved with a spring and arranged between the connecting piece and the second branch pipe, and the outer diameter of the connecting piece and the outer diameter of the second branch pipe are both larger than the outer diameter of the spring. By arranging the spring, the first branch pipe can be bent according to the space limitation of different models during actual assembly, more installation angle choices are provided, and the first branch pipe can be bent to form a certain angle without easily flattening the pipeline. Meanwhile, the outer diameter of the spring is smaller than that of the connecting piece and the second branch pipe, and the branch pipe body can be prevented from being separated from the spring after installation.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigeration, and in particular relates to an output pipe structure of an evaporator. Background Art

[0002] Since the specific installation positions of the input and output pipe assemblies of different types of evaporators are different, the direction of the internal pipes usually needs to be adjusted during actual installation, and the input and output pipe structures of different specifications need to be designed accordingly. For pipes of different shapes, a variety of special molds or equipment need to be used for production, which greatly increases the production cost of pipes. Therefore, in actual production, prefabricated copper pipes are often produced in advance, and then the connecting pipes are bent during actual assembly to meet the needs of the actual installation position. However, in the specific bending process, the pipe section at the bend may be deformed, such as the bend becomes flat, which affects the flow of the internal refrigerant and generates noise during actual use. It may even cause the bent pipe to wrinkle or break, and a large number of pipes are often scrapped in this process. Utility Model Content

[0003] The purpose of the utility model is to provide an output pipe structure of an evaporator, which can solve at least one of the above problems.

[0004] According to one aspect of the utility model, an output pipe structure of an evaporator is provided, comprising a first branch pipe and a second branch pipe, the first branch pipe and the second branch pipe are hollow structures, one end of the first branch pipe is provided with a connecting piece, the other end of the first branch pipe is connected to the second branch pipe, a spring is sleeved on the outside of the first branch pipe and is arranged between the connecting piece and the second branch pipe, and the outer diameter of the connecting piece and the outer diameter of the second branch pipe are both larger than the outer diameter of the spring.

[0005] The beneficial effects of the utility model are as follows: by providing a spring, the first branch pipe can be bent according to the space restrictions of different models during actual assembly, providing more installation angle options, and the first branch pipe can be bent at a large or small angle without easily flattening the pipe. At the same time, the outer diameter of the spring is smaller than the outer diameter of the connecting piece and the second branch pipe, which can prevent the branch pipe body from being separated from the spring after installation.

[0006] In some embodiments, the second branch pipe includes a first pipe segment, a second pipe segment and a third pipe segment, the first pipe segment, the second pipe segment and the third pipe segment are sequentially connected along the axial direction, the inner diameter of the first pipe segment and the inner diameter of the third pipe segment are both smaller than the inner diameter of the second pipe segment, the outer diameter of the first branch pipe is smaller than the inner diameter of the first pipe segment, and one end of the first branch pipe is inserted into the first pipe segment. Therefore, by providing the first branch pipe and the second branch pipe, the overall structure is simplified, the production cost is reduced, and it is convenient for users to produce and install the pipe fittings.

[0007] In some embodiments, the inner walls of the first pipe section and the third pipe section are both provided with protrusions, and the protrusions are both provided at one end close to the second pipe section. Thus, by providing the protrusions, the insertion depth can be limited, which is conducive to improving the stability of the branch pipe installation.

[0008] In some embodiments, the protrusion is annular. Thus, the annular protrusion is relatively simple to process and shape.

[0009] In some embodiments, there are multiple protrusions, and the multiple protrusions are arranged at intervals along the circumference of the inner wall. Thus, by providing multiple protrusions, the stability of the branch pipe installation is further improved.

[0010] In some embodiments, a third branch pipe is further included, and the outer diameter of the third branch pipe is smaller than the inner diameter of the third pipe section, so that one end of the third branch pipe can be inserted into the third pipe section.

[0011] In some embodiments, multiple connecting pipes are further included, the second branch pipe is provided with multiple connecting holes, the connecting pipe and the second branch pipe are connected through the connecting holes, and a protrusion is provided on the connecting pipe, and the protrusion is provided on the outer circumference of one end of the connecting pipe. Thus, by providing the protrusion, different connecting pipes can be installed in suitable positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the output pipe structure of the evaporator of the utility model from one perspective;

[0013] Figure 2 This is a structural schematic diagram of the output pipe structure of the evaporator of the utility model from another perspective;

[0014] Figure 3 It is a structural schematic diagram of a second branch pipe in the output pipe structure of the evaporator of the utility model;

[0015] Figure 4 The utility model is a structural schematic diagram of a connecting pipe in the output pipe structure of the evaporator. DETAILED DESCRIPTION

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0017] Reference Figure 1 to Figure 4 : The output pipe structure of the evaporator includes a first branch pipe 1 and a second branch pipe 3. The first branch pipe 1 and the second branch pipe 3 are hollow structures. A connecting piece 5 is provided at one end of the first branch pipe 1. The other end of the first branch pipe 1 is connected to the second branch pipe 3. A spring 2 is sleeved on the outside of the first branch pipe 1 and is arranged between the connecting piece 5 and the second branch pipe 3. The outer diameter of the connecting piece 5 and the outer diameter of the second branch pipe 3 are both larger than the outer diameter of the spring 2.

[0018] When in use, move the spring 2 to the part to be bent, and bend the first branch tube 1 into the desired shape manually or using appropriate tools. Figure 1 For example, the first branch pipe 1 is bent in two sections, so that the first branch pipe 1 is protected by the spring 2, so that the first branch pipe 1 will not be flattened or compressed during the bending process. At the same time, the length of the first branch pipe 1 can be longer than the spring 2, and it is only necessary to connect and set a certain length of the spring 2, so that the spring 2 can slide on the first branch pipe 1, which is convenient for adjusting the position of the protective spring 2 at any time, and is suitable for different positions to be bent. At the same time, since the outer diameter of the connecting piece 5 and the outer diameter of the second branch pipe 3 are both larger than the outer diameter of the spring 2, the spring 2 will not slide out of the first branch pipe 1. After bending, the spring 2 can be fixed on the first branch pipe 1 with tape. Therefore, during actual assembly, the first branch pipe 1 can be bent according to the space restrictions of different models, providing more installation angle options. The first branch pipe 1 adopts an integrated molding structure, which reduces the welding points of multiple sections of connection, and has better integrity and sealing. During installation, the first branch pipe 1 can be directly bent to a large or small angle without easily flattening the pipeline. At the same time, after installation, the branch pipe body and the spring 2 can be prevented from being separated. It is convenient to install and improves the adaptability of installation.

[0019] The second branch pipe 3 includes a first pipe section 31, a second pipe section 32 and a third pipe section 33. Specifically, the first pipe section 31 and the third pipe section 33 are connected through the second pipe section 32. Both ends of the first pipe section 31, the second pipe section 32 and the third pipe section 33 are provided with openings, and the first pipe section 31, the second pipe section 32 and the third pipe section 33 are sequentially connected along the axial direction. Among them, the outer diameter of the first branch pipe 1 is smaller than the inner diameter of the first pipe section 31, so that one end of the first branch pipe 1 can be inserted into the inner wall of the first pipe section 31. The inner diameter of the first pipe section 31 and the inner diameter of the third pipe section 33 are both smaller than the inner diameter of the second pipe section 32, so that when the first pipe section 31 and the first branch pipe 1 are matched and connected, the inner wall of the first pipe section 31 and the outer part of the first branch pipe 1 are in close contact, which increases the tightness of the two sets of matching connections. Therefore, the overall structure of multiple branch pipes is simplified, and only branch pipes of different shapes need to be produced to connect, which reduces the production cost and facilitates the production and installation of pipe fittings by users.

[0020] In order to limit the insertion depth of the first branch pipe 1, the inner walls of the first pipe section 31 and the third pipe section 33 are provided with protrusions 35, and the protrusions 35 are arranged at one end close to the second pipe section 32, so that when the branch pipe is inserted to a certain depth, it is blocked by the protrusion 35, and there is no need for manual alignment and positioning, and there is no need to set additional fasteners on the inner wall, so as to avoid affecting the flow of the internal refrigerant and preventing the resistance when passing through the fasteners from generating noise. Therefore, by providing the protrusion 41, it is beneficial to improve the stability of the branch pipe installation. Preferably, the protrusion 35 can be annular. The annular protrusion 35 is relatively simple to process and shape. Furthermore, the protrusion 35 can be set to multiple, and the multiple protrusions 35 are arranged at intervals along the circumference of the inner wall. For example, two or four protrusions 35 are provided, which can further improve the stability of the branch pipe installation.

[0021] The utility model also includes a third branch pipe 6, the outer diameter of the third branch pipe 6 is smaller than the inner diameter of the third pipe section 33, one end of the third branch pipe 6 is inserted into the third pipe section 33, and similarly, when inserted into place, it is tightly pressed against the protrusion 35 on the inner wall of the third pipe section 33, thereby ensuring the stability of the branch pipe after installation and insertion.

[0022] Furthermore, the utility model can also replace the second branch pipe 3 with different specifications. Specifically, the second branch pipe 3 is provided with a plurality of connection holes 34. According to the requirements of connecting different components, a plurality of connecting pipes can be connected to the second branch pipe 3. In this way, the connecting pipe and the second branch pipe 3 are connected through the connection holes 34. Furthermore, a protrusion 41 is provided on the connecting pipe. The protrusion 41 is provided on the outer peripheral surface of one end of the connecting pipe, so that the branch pipe can only reach a specific position when inserted, and prevents the further insertion of the connecting pipe. In this way, it is ensured that the two branch pipes maintain an appropriate gap inside to avoid affecting the flow of the internal refrigerant, so as to achieve the normal heat exchange function, and different connecting pipes can be installed in suitable positions without manual secondary depth measurement and alignment. It should be noted that the shape, size and position of the protrusion 41 can be determined according to the shape of the actual pipe and the insertion requirements, as long as the limiting effect can be ensured.

[0023] During installation, after the spring 2 is sleeved on the first branch pipe 1, the connector 5 is then installed correspondingly at one end of the first branch pipe 1, for example, the connector 5 is set as a bolted pipe joint, and then the other end of the first branch pipe 1 is inserted along the inner wall of the first pipe section 31, that is, the other end of the first branch pipe 1 is inserted into the second branch pipe 3. After insertion, the first pipe section 31 and the protrusion 35 of the inner wall of the first pipe section 31 are tightly pressed. Similarly, the third branch pipe 6 can be inserted into the second pipe section 32 to complete the connection of the first branch pipe 1, the second branch pipe 3 and the third branch pipe 6 to prevent leakage of refrigerant or other media. Then different connecting pipes can be connected as needed, and one end of the connecting pipe with the protrusion 41 is inserted along the inner wall of the connecting hole 34 on the second branch pipe 3. After insertion, the protrusion 41 on the connecting pipe and the end face of the connecting hole 34 are tightly pressed, and then the connection of each pipe is welded in turn to ensure the firmness and sealing of the connection to complete the installation. In actual production, it is only necessary to produce branch pipes of corresponding shapes such as the first branch pipe and the second branch pipe, and then weld them after splicing and assembling them through the above method. The operation is simple and can reduce the defective rate of products. At the same time, the installation speed can be increased, thus simplifying the production steps, reducing the production cost, and improving the efficiency of assembly and production.

[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. The output pipe structure of the evaporator is characterized by: The invention comprises a first branch pipe (1) and a second branch pipe (3), wherein the first branch pipe (1) and the second branch pipe (3) are hollow structures, one end of the first branch pipe (1) is provided with a connecting piece (5), and the other end of the first branch pipe (1) is connected to the second branch pipe (3), a spring (2) is sleeved on the outside of the first branch pipe (1) and is arranged between the connecting piece (5) and the second branch pipe (3), and the outer diameter of the connecting piece (5) and the outer diameter of the second branch pipe (3) are both larger than the outer diameter of the spring (2).

2. The output pipe structure of the evaporator according to claim 1, characterized in that: The second branch pipe (3) comprises a first pipe section (31), a second pipe section (32) and a third pipe section (33); the first pipe section (31), the second pipe section (32) and the third pipe section (33) are sequentially connected along the axial direction; the inner diameter of the first pipe section (31) and the inner diameter of the third pipe section (33) are both smaller than the inner diameter of the second pipe section (32); the outer diameter of the first branch pipe (1) is smaller than the inner diameter of the first pipe section (31); and one end of the first branch pipe (1) is inserted into the first pipe section (31).

3. The output pipe structure of the evaporator according to claim 2, characterized in that: The inner walls of the first pipe section (31) and the third pipe section (33) are both provided with protrusions (35), and the protrusions (35) are both provided at one end close to the second pipe section (32).

4. The output pipe structure of the evaporator according to claim 3, characterized in that: The protrusion (35) is annular.

5. The output pipe structure of the evaporator according to claim 3, characterized in that: There are a plurality of protrusions (35), and the plurality of protrusions (35) are arranged at intervals along the circumferential direction of the inner wall.

6. The output pipe structure of the evaporator according to claim 2, characterized in that: It also comprises a third branch pipe (6), the outer diameter of the third branch pipe (6) being smaller than the inner diameter of the third pipe section (33).

7. The output pipe structure of the evaporator according to claim 6, characterized in that: It also includes a plurality of connecting pipes, the second branch pipe (3) is provided with a plurality of connecting holes (34), the connecting pipe and the second branch pipe (3) are connected via the connecting holes (34), the connecting pipe is provided with a protrusion (41), and the protrusion (41) is arranged on the outer peripheral surface of one end of the connecting pipe.

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