Necking-down type micro-channel pipe

Abstract

The utility model relates to the technical field of micro-channel pipes, in particular to a necking-down type micro-channel pipe which comprises a main pipe body, one end of the main pipe body is fixedly connected with a front end head, a first chamfer is arranged at the transition position between the main pipe body and the front end head, and a second chamfer is arranged at one end of the front end head. When the collecting pipe is assembled, insertion of a round rod (core rod) is omitted, the necking step formed by the first chamfer and the second chamfer is directly used for abutting against the mounting hole, the position of the micro-channel pipe is fixed and does not move, production procedures are reduced, and production efficiency is improved; the micro-channel pipe and the mounting hole are elastically matched through the end cushion block, the situation that the micro-channel pipe and the mounting hole are prone to position deviation due to vibration after mounting is avoided, the main pipe body can be conveniently held for mounting through the positioning block and the pressing groove, and after mounting is in place, the positioning block plays a limiting role, and it is indicated that mounting is in place.

Description

TECHNICAL FIELD

[0001] The utility model relates to condenser technical field especially relates to a neck-in microchannel tube. BACKGROUND

[0002] The condenser core is complex in assembly process, and the normal microchannel tube (flat tube) is not necked. When the core is assembled, the two round bars (core rods) are inserted into the assembly of the collecting tube circle, in order to resist the microchannel tube (flat tube) and insert the collecting tube depth size and fix the flat tube, if the microchannel tube (flat tube) moves, the fin will be deformed, which will affect the appearance and reduce the production efficiency. SUMMARY

[0003] The utility model discloses a microchannel tube with a neck-in structure.

[0004] The utility model discloses the following technical scheme: a neck-in microchannel tube, including main pipe body, one end of main pipe body is fixedly connected with front end head, the first chamfer is set up between the transition of main pipe body and front end head, the second chamfer is set up in one end of front end head.

[0005] Preferably, the other end of the main pipe body is fixedly installed with a positioning block.

[0006] Preferably, the surface of the positioning block is provided with a pressing groove.

[0007] Preferably, the opening of the front end head is fixedly installed with an end head pad.

[0008] Preferably, the material of the end head pad is rubber.

[0009] Preferably, the positioning block and the pressing groove are symmetrically arranged on the surface of the main pipe body.

[0010] Compared with the prior art, the utility model has the advantages and positive effects that:

[0011] In the utility model, the round bar (core rod) is cancelled when assembling the collecting tube, and the neck-in step formed by the first chamfer and the second chamfer is directly pressed against the mounting hole, so that the position of the microchannel tube is fixed and cannot move, the production process is reduced, and the production efficiency is improved.

[0012] The end head pad forms elastic cooperation between the microchannel tube and the mounting hole, avoids the position deviation of the microchannel tube caused by vibration after installation, and facilitates the gripping of the main pipe body for installation through the positioning block and the pressing groove. After installation, the positioning block plays a limiting role, indicating that the installation is in place. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The utility model provides a schematic view of the microchannel pipe of necking type;

[0014] Figure 2 The utility model provides a schematic view of the microchannel pipe of necking type Figure 1 The middle A schematic view;

[0015] Figure 3 The utility model provides a schematic view of the microchannel pipe of necking type Figure 1 The middle B schematic view.

[0016] Legend:

[0017] 1, main pipe body, 2, front end head, 3, end head pad block, 4, first chamfer, 5, second chamfer, 6, positioning block, 7, press groove. Specific embodiments

[0018] In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the drawings and examples. It should be explained that the examples and features in the examples of the present application can be combined with each other without conflict.

[0019] In the following description, a lot of specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from the description herein, therefore, the utility model is not limited to the specific examples disclosed in the following disclosure.

[0020] Example one

[0021] Please refer to Figures 1-3 The utility model provides a technical scheme: a microchannel pipe of necking type, including main pipe body 1, one end of main pipe body 1 is fixedly connected with front end head 2, and the first chamfer 3 and the second chamfer 5 on front end head 2 play the necking effect, so that the size of the front end of the microchannel pipe is smaller, the transition between main pipe body 1 and front end head 2 is provided with first chamfer 3, and one end of front end head 2 is provided with second chamfer 5.

[0022] Example two

[0023] Please refer to Figures 1-3 The other end of main pipe body 1 is fixedly installed with positioning block 6, the surface of positioning block 6 is provided with press groove 7, positioning block 6 is convenient for positioning main pipe body 1, press groove 7 and positioning block 6 can conveniently operate main pipe body 1 to install, the opening of front end head 2 is fixedly installed with end head pad block 3, the material of end head pad block 3 is rubber, end head pad block 3 can play the role of buffering and shock absorption, and positioning block 6 and press groove 7 are symmetrically arranged on the surface of main pipe body 1.

[0024] Working principle: the first chamfer 3 and the second chamfer 5 make the main pipe body 1 form a neck, the neck design resists the installation hole, the micro-channel pipe position is fixed and cannot be moved, when the positioning block 6 is blocked, it indicates that the micro-channel pipe has been installed in place, the design of the end head pad 3 makes the front end head 2 not collide with the installation hole, at the same time, the installed micro-channel pipe is more stable, and the noise generated by shaking is reduced.

[0025] The above is only the preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technology content to equivalent embodiments applied to other fields. However, any simple modification, equivalent change and modification made to the above embodiments without departing from the technical solution content of the present application, and in accordance with the technical essence of the present application, still belong to the protection scope of the technical solution of the present application.

Claims

1. A microchannel tube of the constricted type comprising a main body (1) characterised in that: One end of the main pipe body (1) is fixedly connected with a front end head (2), a first chamfer (4) is arranged at the transition between the main pipe body (1) and the front end head (2), one end of the front end head (2) is provided with a second chamfer (5), the other end of the main pipe body (1) is fixedly installed with a positioning block (6), the surface of the positioning block (6) is provided with a pressing groove (7), the opening of the front end head (2) is fixedly installed with an end head pad block (3), and the material of the end head pad block (3) is rubber.

2. The constricted microchannel tube of claim 1, wherein: The positioning block (6) and the pressing groove (7) are arranged in an up-down symmetrical manner on the surface of the main pipe body (1).

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