CN215983372U

CN215983372U - Refrigerant distribution structure of heat exchanger

Info

Publication number: CN215983372U
Application number: CN202122406668.4U
Authority: CN
Inventors: 马免斋
Original assignee: Jiangmen Zheshun Air Conditioning Fittings Co ltd
Current assignee: Jiangmen Zheshun Air Conditioning Fittings Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-03-08
Anticipated expiration: 2031-09-30

Abstract

The utility model discloses a refrigerant distribution structure of a heat exchanger, which comprises a liquid inlet pipe and a transition connecting pipe connected with the heat exchanger, and also comprises: the throttling valve core is used for controlling flow, and is arranged in the transition connecting pipe; the utility model provides a refrigerant distribution structure of a heat exchanger, which has a simple structure, does not occupy space and does not influence flow and refrigeration effect.

Description

Refrigerant distribution structure of heat exchanger

Technical Field

The utility model relates to the technical field of heat exchangers, in particular to a refrigerant distribution structure of a heat exchanger.

Background

The refrigerant distribution assembly is an important component in an air conditioner and is used for distributing refrigerant to a heat exchanger according to the flow required by each path, so as to achieve refrigeration. According to the prior art, as shown in fig. 3, the device is basically composed of a liquid inlet pipe, a brass distributor, a throttling capillary pipe and a transition connecting pipe, and the structure is complex. Capillary tubes with different lengths are adopted for throttling, and the overlong tubes are wound, so that the whole product occupies a larger space. And the capillary is softer, and is easy to be out of shape in the course of working, and the hole diminishes when welding simultaneously, also takes place the condition of jam easily to influence flow and refrigeration effect.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the defects of the prior art are overcome, and the refrigerant distribution structure of the heat exchanger, which has a simple structure, does not occupy space and does not influence flow and refrigeration effect, is provided.

In order to achieve the purpose, the technical scheme of the utility model is as follows: a refrigerant distribution structure of a heat exchanger, comprising a liquid inlet pipe and a transition connection pipe connected with the heat exchanger, further comprising:

the throttling valve core is used for controlling flow, and is arranged in the transition connecting pipe;

the transition connecting pipe is welded on the liquid inlet pipe.

After adopting the structure, compared with the prior art, the utility model has the following advantages: the existing brass distributor and the throttle capillary are removed, the transition connecting pipe is directly welded on the liquid inlet pipe, meanwhile, the throttle valve core is arranged in the transition connecting pipe, the flow of the transition connecting pipe is controlled through the throttle valve core, different throttle valve cores enable the flow in the transition connecting pipe to be different, welding spots are reduced, the structure is simple, the space is not occupied, the throttle capillary is removed, the strength is high, the welding of small-hole parts is avoided, the welding blockage is not easy, and the flow and the refrigerating effect are not influenced.

Preferably, the heat exchanger further comprises an extension pipe, the extension pipe is welded with the liquid inlet pipe, and the transition connecting pipe is welded on the extension pipe so as to be convenient for connecting the liquid inlet pipe with the heat exchanger.

Preferably, the outer side wall of the transition connecting pipe is inwards sunken to form an annular bulge in the transition connecting pipe, and the annular bulge is extruded on the throttle valve core, so that the throttle valve core is conveniently arranged in the transition connecting pipe.

Preferably, the outer side surface of the throttle valve core is provided with an annular groove, and the annular bulge is clamped in the annular groove, so that the throttle valve is more reliable.

Preferably, the thickness of the upper end and the lower end of the annular bulge is smaller than the thickness of the middle of the annular bulge, so that the annular bulge is conveniently clamped in the annular groove.

Preferably, the cross section of the annular bulge is arc-shaped, so that the effect is good.

Preferably, the cross section of the annular groove is arc-shaped, so that the effect is good.

Preferably, the annular groove is located in the middle of the throttle valve core, and the reliability is high.

Drawings

Fig. 1 is a front view of a refrigerant distribution structure of a heat exchanger of the present invention.

Fig. 2 is an enlarged schematic view of a in fig. 1.

Fig. 3 is a front view of a refrigerant distribution structure of a conventional heat exchanger.

The heat exchanger comprises a liquid inlet pipe 1, a liquid inlet pipe 2, a heat exchanger 3, a transition connecting pipe 4, a throttling valve core 5, an extension pipe 6, an annular bulge 7 and an annular groove.

Detailed Description

The utility model is further described with reference to the following figures and detailed description.

As shown in fig. 1 and 2, the refrigerant distribution structure of the heat exchanger provided by the utility model comprises a liquid inlet pipe 1 and a plurality of transition connecting pipes 3, wherein the upper ends of the transition connecting pipes 3 are respectively welded on the liquid inlet pipe 1, the lower ends of the transition connecting pipes 3 are connected with the heat exchanger 2, and throttle valve cores 4 are respectively arranged in the transition connecting pipes 3, so that the flow distribution is realized.

As an embodiment, in order to facilitate installation, a lengthened pipe 5 is arranged, the lengthened pipe 5 is welded with the liquid inlet pipe 1, and the transition connecting pipes 3 are all welded on the lengthened pipe 5.

As an embodiment, as shown in fig. 2, an annular protrusion 6 is disposed on an inner side wall of the transition connection pipe 3, and the throttle valve core 4 is mounted in the transition connection pipe 3 by pressing the annular protrusion 6 on the throttle valve core 4, specifically, the annular protrusion 6 is formed by inwardly recessing an outer side wall of the transition connection pipe 3, and is mainly formed by spinning an outer circumference of the transition connection pipe 3 by a spinning machine. In order to firmly fix the throttle valve core 4 in the transition connecting pipe 3, an annular groove 7 matched with the annular bulge 6 is arranged on the throttle valve core 4, and the annular bulge 6 is clamped in the annular groove 7 to realize the positioning of the throttle valve core 4. Specifically, the thickness in the middle of the annular protrusion 6 is greater than the thickness at the upper end and the lower end of the annular protrusion 6, so that the annular protrusion 6 is not easy to separate from the annular groove 7, specifically, the cross section of the annular protrusion 6 is arc-shaped, and the annular groove 7 is also arc-shaped. Specifically, the annular groove 7 is located at a middle position of the throttle valve spool 4.

Specifically, the principle of the utility model is that the existing brass distributor and throttle capillary are removed, the transition connecting pipe 3 is directly welded on the liquid inlet pipe 1, meanwhile, the throttle valve core 4 is arranged in the transition connecting pipe 3, the flow of the transition connecting pipe 3 is controlled by the throttle valve core 4, different throttle valve cores 4 enable the flow in the transition connecting pipe 3 to be different, the welding spots are reduced, the structure is simple, the space is not occupied, the throttle capillary is removed, the strength is high, the welding of small hole parts is avoided, the welding blockage is not easy, and the flow and the refrigeration effect are not influenced. The scheme has the advantages of compact structure, installation space saving, capability of providing a foundation for air conditioner miniaturization, avoidance of welding of small-hole parts, difficulty in welding blockage and higher strength than a capillary tube.

On the basis of the above-described aspects, if various changes or modifications to the present invention are made without departing from the spirit and scope of the present invention, it is intended that the present invention also include these changes and modifications if they fall within the scope of the claims and the equivalent technical scope of the present invention.

Claims

1. A refrigerant distribution structure of a heat exchanger, comprising a liquid inlet pipe (1) and a transition connection pipe (3) connected with a heat exchanger (2), characterized in that: it still includes:

the throttling valve core (4) is used for controlling flow, and the throttling valve core (4) is arranged in the transition connecting pipe (3); the transition connecting pipe (3) is welded on the liquid inlet pipe (1).

2. The refrigerant distribution structure of a heat exchanger according to claim 1, wherein: the liquid inlet pipe is characterized by further comprising an extension pipe (5), the extension pipe (5) is welded with the liquid inlet pipe (1), and the transition connecting pipe (3) is welded on the extension pipe (5).

3. The refrigerant distribution structure of a heat exchanger according to claim 1, wherein: the outer side wall of the transition connecting pipe (3) is inwards sunken in the transition connecting pipe (3) to form an annular bulge (6), and the annular bulge (6) is extruded on the throttle valve core (4).

4. A refrigerant distribution structure of a heat exchanger according to claim 3, wherein: an annular groove (7) is formed in the outer side face of the throttle valve core (4), and the annular protrusion (6) is clamped in the annular groove (7).

5. A refrigerant distribution structure of a heat exchanger according to claim 3, wherein: the thickness of the upper end and the lower end of the annular bulge (6) is smaller than the thickness of the middle of the annular bulge (6).

6. The refrigerant distribution structure of a heat exchanger according to claim 5, wherein: the cross section of the annular bulge (6) is arc-shaped.

7. The refrigerant distribution structure of a heat exchanger according to claim 6, wherein: the cross section of the annular groove (7) is arc-shaped.

8. The refrigerant distribution structure of a heat exchanger according to claim 4, wherein: the annular groove (7) is positioned in the middle of the throttle valve core (4).