CN111678208A

CN111678208A - Heat exchanger of indoor unit of air conditioner and unit body thereof

Info

Publication number: CN111678208A
Application number: CN202010537054.7A
Authority: CN
Inventors: 苗辉; 王爱峰; 朱江楠
Original assignee: China Aero Engine Research Institute
Current assignee: China Aero Engine Research Institute
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2020-09-18

Abstract

The utility model provides a heat exchanger unit body in machine in air conditioning, including frame and pipe, the frame includes frame body, recess, through-hole and side opening. The utility model also provides an indoor unit heat exchanger of air conditioning, including heat exchanger body, two joints and two baffles, the heat exchanger body includes a plurality of unit bodies of coincide each other, the through-hole of unit body communicates each other and forms two trunk passageways, one joint and a baffle are located one respectively trunk passageway's both ends, another joint and another baffle are located another respectively trunk passageway's both ends. The invention has the advantages of compact structure, high heat transfer efficiency and convenient processing and manufacturing, and can greatly reduce the size of the indoor unit of the air conditioner.

Description

Heat exchanger of indoor unit of air conditioner and unit body thereof

Technical Field

The present disclosure relates to the field of air conditioners, and more particularly, to a heat exchanger for an indoor unit of an air conditioner and a unit thereof.

Background

The air conditioner is the necessary equipment for adjusting indoor temperature and humidity. The heat exchanger of the wall-mounted air conditioner indoor unit is in a multi-fold round pipe form, and fins are additionally arranged on the round pipe to improve the heat exchange efficiency. The diameter of the round tube is 4-10 mm. The larger pipe diameter enables the heat exchange efficiency of the heat exchanger to be at a lower level, and then the size of the whole heat exchanger is required to be larger, so that the size of the indoor unit of the air conditioner cannot be obviously reduced.

As the demands of residents on the beauty of home decoration are continuously increased and higher demands are also made on the appearance and size design of the indoor unit of the air conditioner, the miniaturized indoor unit will be more popular. Miniaturized indoor units necessarily require more compact, more efficient heat exchangers.

With the development of the micro-scale heat transfer technology, the ultra-compact heat exchanger begins to appear in the fields of electronic component cooling, aerospace heat transfer and the like, has the advantages of high heat exchange efficiency, small structural size and material conservation, but has processing difficulty and processing cost obviously higher than those of the conventional heat exchanger, and provides higher requirements for the flow channel design, the structural design and the process design of the heat exchanger if the ultra-compact heat exchanger is used in the field of air conditioners. Accordingly, the present disclosure has been made.

Disclosure of Invention

The present disclosure provides a heat exchanger of an indoor unit of an air conditioner and a unit body thereof, which aims to reduce the size of the existing indoor unit of the air conditioner.

According to an aspect of the present disclosure, a heat exchanger unit body in machine in air conditioning, includes frame and pipe, the frame includes frame body, recess, through-hole and side opening, and is a plurality of the recess evenly set up in on the frame body, two the through-hole set up respectively in on the diagonal angle of frame body, two the side opening set up respectively in on the lateral wall at the diagonal angle of frame body, the through-hole with the side opening intercommunication, the pipe dish is located in the recess, the one end and a side jogged joint of pipe, the other end and another side opening of pipe are connected.

According to at least one embodiment of the present disclosure, the frame body is rectangular, and the plurality of grooves are uniformly formed on a pair of edges of the frame body.

According to at least one embodiment of this disclosure, the pipe is a metal pipe, and locates in the recess with snakelike dish, forms the snakelike tube bank of rectangle form.

According to at least one embodiment of the present disclosure, the outer diameter of the circular tube ranges from 1 mm to 4 mm.

According to at least one embodiment of the present disclosure, the frame body is made of metal, the side length of the frame body is less than or equal to 200mm, and the thickness of the frame body is 2 times of the outer diameter of the circular tube.

According to at least one embodiment of the disclosure, the center distance between two adjacent tubes of the serpentine tube bundle is 2-3 times of the outer diameter of the round tube, and the side length of the serpentine tube bundle ranges from 60 mm to 200 mm.

According to at least one embodiment of this disclosure, the recess cross section is the U-shaped, the recess width is 1 time the pipe external diameter, the recess degree of depth is 1.5 times the pipe external diameter.

According to at least one embodiment of the present disclosure, the through-hole has a diameter of 4-8 mm.

According to one aspect of the disclosure, an indoor unit heat exchanger of an air conditioner comprises a heat exchanger body, two joints and two sealing baffles, wherein the heat exchanger body comprises a plurality of unit bodies which are overlapped with each other, through holes of the unit bodies are communicated with each other to form two trunk channels, one joint and one sealing baffle are respectively arranged at two ends of one trunk channel, and the other joint and the other sealing baffle are respectively arranged at two ends of the other trunk channel.

According to at least one embodiment of the present disclosure, the heat exchanger body further includes a brazing filler metal layer, and the plurality of brazing filler metal layers are respectively disposed around the through holes of the plurality of unit bodies.

According to at least one embodiment of the present disclosure, the number of the unit cells ranges from 10 to 30.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

Fig. 1 is a schematic structural diagram of a unit body of the present disclosure.

Fig. 2 is a schematic structural diagram of a circular tube according to the present disclosure.

Fig. 3 is a schematic structural diagram of a frame body according to the present disclosure.

Fig. 4 is a schematic structural diagram of the heat exchanger of the indoor unit of the air conditioner of the present disclosure.

Detailed Description

The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1, the unit body 1 of the present disclosure is composed of a frame body 2 and a fine round tube 3.

As shown in fig. 2, the fine round tube 3 of the present disclosure is formed by bending a single round metal tube with a small diameter (e.g., 1 to 4mm, preferably 2mm) into a serpentine shape, and the center distance between two adjacent tubes is 2 to 3 times (preferably 2 times) the outer diameter of the fine round tube; the micro round tube 3 has a rectangular appearance as a whole, and the side length ranges from 60 mm to 200 mm.

As shown in fig. 3, the frame body 2 of the present disclosure is a square metal frame structure, on which a groove 4 for placing and fixing the fine round tube 3 is formed, the groove 4 is a U-shaped structure, and is arranged to match with the structure of the fine round tube 3, the width of the groove is 1 time of the outer diameter of the round tube, and the depth of the groove is 1.5 times of the outer diameter of the round tube; two opposite corners of the frame body 2 are respectively provided with a through hole 5 and a side hole 6, the diameter of the through hole is 4-8mm, and the diameter of the side hole 6 is the same as the outer diameter of the fine round tube 3. The side length of the frame body is less than or equal to 200mm, and the thickness of the frame body is 2 times of the outer diameter of the round pipe.

As shown in fig. 1, the fine round tube 3 is combined with the frame body 2, so as to ensure that each section of the fine round tube 3 is well fixed in the groove 4 of the frame body 2; and finally, respectively extending the two tail ends of the micro round tube 3 into the two side holes 6 for brazing, sealing and fixing.

Fig. 4 is a schematic view of the heat exchanger of the ultra-compact indoor unit of an air conditioner according to the present disclosure. The ultra-compact air-conditioning indoor unit heat exchanger 9 is formed by overlapping and then brazing a plurality of unit bodies 1 (such as 10-30 unit bodies 1, preferably 20 unit bodies 1), and the brazing filler metal 7 only needs to be coated on the peripheral areas of two through holes 5 on the frame body 2, as shown in fig. 3.

The ultra-compact air-conditioning indoor unit heat exchanger 9 is formed by overlapping a plurality of unit bodies 1 to form a heat exchanger body, and through holes 5 of the unit bodies 1 are mutually communicated to form two main channels; the two heat exchanger joints 8 are made of metal materials and are respectively welded at one end of the two main channels, and are distributed on the cuboid heat exchanger body in a diagonal manner so as to be conveniently connected with other pipelines of the air conditioner; the two sealing baffles 10 are made of metal materials, correspond to the joints 8 and are respectively arranged at the other end of each trunk channel.

The utility model discloses an ultra-compact air conditioning indoor unit heat exchanger, its beneficial effect shows: the micro round pipe with smaller pipe diameter is adopted as the heat exchange core body, so that the heat transfer efficiency of the heat exchanger can be obviously improved, and the size of the heat exchanger can be obviously reduced; meanwhile, the design idea of the arrangement of the heat exchanger similar to a laminated plate and the structure of the unit body is adopted, so that the efficiency of manufacturing the compact heat exchanger can be improved.

In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.

Claims

1. The utility model provides an indoor set heat exchanger cell cube of air conditioning, its characterized in that, includes frame and pipe, the frame includes frame body, recess, through-hole and side opening, and is a plurality of the recess evenly set up in on the frame body, two the through-hole set up respectively in on the diagonal angle of frame body, two the side opening set up respectively in on the lateral wall at the diagonal angle of frame body, the through-hole with the side opening intercommunication, the pipe dish is located in the recess, the one end and a side jogged joint of pipe, the other end and another side opening of pipe are connected.

2. The unit body of claim 1, wherein the frame body is rectangular, and the plurality of grooves are uniformly formed on a pair of edges of the frame body.

3. The unit cell of claim 1 wherein said round tubes are metal round tubes and are coiled in a serpentine pattern within said grooves to form a rectangular serpentine tube bundle.

4. The unit cell of claim 1, wherein the circular tube has an outer diameter in the range of 1-4 mm.

5. The unit body of claim 1, wherein the frame body is made of metal, the side length of the frame body is less than or equal to 200mm, and the thickness of the frame body is 2 times of the outer diameter of the round pipe.

6. The unit cell of claim 3, wherein the center-to-center distance between two adjacent tubes of the serpentine tube bundle is 2-3 times the outer diameter of the round tubes, and the side length of the serpentine tube bundle ranges from 60 mm to 200 mm.

7. The unit cell of claim 1, wherein the groove is U-shaped in cross section, the groove has a width of 1 times the outer diameter of the circular tube, and the groove has a depth of 1.5 times the outer diameter of the circular tube.

8. The unit cell of claim 1, wherein the through-hole has a diameter of 4-8 mm.

9. An indoor unit heat exchanger of an air conditioner, which is characterized by comprising a heat exchanger body, two joints and two sealing baffles, wherein the heat exchanger body comprises a plurality of unit bodies as claimed in any one of claims 1 to 8 which are overlapped with each other, through holes of the unit bodies are mutually communicated to form two trunk channels, one joint and one sealing baffle are respectively arranged at two ends of one trunk channel, and the other joint and the other sealing baffle are respectively arranged at two ends of the other trunk channel.

10. The heat exchanger of claim 9, wherein the heat exchanger body further comprises a brazing filler metal layer, and a plurality of brazing filler metal layers are respectively disposed around the through holes of the plurality of unit bodies.