Finned heat exchanger and air conditioning device

Abstract

The present application relates to a kind of finned heat exchanger (10), comprising: side-by-side arranged first row of fins (11) and second row of fins (12), first row of fins (11) and second row of fins (12) each include the multiple fins (14) of laminated and have size difference H between;And connector (13), to the first row of fins (11) and second row of fins (12) with scalable manner connection, reduce the noise between first row of fins (11) and second row of fins (12), reduce the deformation of fin (14) connected with connector (13), reduce the hidden danger of refrigerant leakage.

Description

Technical Field

[0001] The present invention relates to the technical field of air-conditioning equipment, and in particular to a fin-type heat exchanger and air-conditioning equipment. Background Art

[0002] When there is a size difference between two rows of fins in a fin-type heat exchanger, the fin-type heat exchanger may make abnormal noises during operation, thereby increasing the noise of the air-conditioning equipment. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, the present invention provides, on one hand, a fin-type heat exchanger comprising: a first row of fins and a second row of fins arranged side by side, each of the first row of fins and the second row of fins comprising a plurality of stacked fins and having a size difference H therebetween; and a connector connecting the first row of fins and the second row of fins in a telescopic manner.

[0004] According to some embodiments of the present invention, the connecting member is provided with an elastic structure, and the elastic structure is expandable and contractible under force.

[0005] According to some embodiments of the present invention, the connecting member includes a first connecting portion, a second connecting portion, and an elastic structure located between the first connecting portion and the second connecting portion, wherein there is an end with a size difference H between the first row of fins and the second row of fins, the first connecting portion of the connecting member is connected to the first row of fins, and the second connecting portion of the connecting member is connected to the second row of fins.

[0006] According to some embodiments of the present invention, the first connecting portion of the connector is connected to the outermost fin of the first row of fins or the fin stacking side of the first row of fins, and the second connecting portion of the connector is connected to the outermost fin of the second row of fins or the fin stacking side of the second row of fins.

[0007] According to some embodiments of the present invention, the connecting member and / or the elastic structure are made of a sheet material.

[0008] According to some embodiments of the present invention, the elastic structure has a protruding area.

[0009] According to some embodiments of the present invention, the protruding area of ​​the elastic structure includes an angled portion, a stepped portion and / or an arc-shaped portion.

[0010] According to some embodiments of the present invention, the angled portion, the stepped portion or the arcuate portion is provided with a first opening.

[0011] According to some embodiments of the present invention, a width of a middle portion of the first opening is smaller than a width of an end portion of the first opening. Optionally, the width of the first opening is gradually reduced from the end portion to the middle portion.

[0012] According to some embodiments of the present invention, there are multiple first openings and the first openings are arranged at intervals.

[0013] According to some embodiments of the present invention, the elastic structure is smaller in sheet thickness than the first connecting portion and the second connecting portion.

[0014] According to some embodiments of the present invention, the connecting member is elastic. Optionally, the connecting member and / or the elastic structure are made of an elastic material. Optionally, the elasticity of the elastic structure is greater than that of the first connecting portion and the second connecting portion.

[0015] According to some embodiments of the present invention, the elastic structure is made of a different material from the first connecting portion and the second connecting portion.

[0016] According to some embodiments of the present invention, the first connecting portion and the second connecting portion of the connecting member are provided with second openings, and the heat exchange tubes of the finned heat exchanger extend from the second openings.

[0017] Another aspect of the present invention provides an air-conditioning device, comprising the above-mentioned fin-type heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 is a schematic diagram of a fin heat exchanger according to some embodiments of the present invention;

[0020] Figure 2a is an axonometric view of a connector of a fin-type heat exchanger according to some embodiments of the present invention;

[0021] Figure 2b for Figure 2a A top view of the connector shown;

[0022] Figure 2c for Figure 2a a cross-sectional view of the connector shown;

[0023] Figure 3 is a cross-sectional view of a connector of a fin-type heat exchanger according to some embodiments of the present invention; and

[0024] Figure 4 is a cross-sectional view of a connector of a fin-type heat exchanger according to some embodiments of the present invention; and

[0025] Figure 5 Schematic diagram of a fin heat exchanger according to some embodiments of the present invention. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings.

[0027] The inventors discovered that using a connector to connect two rows of fins with different dimensions to reduce noise, if the length of the connector is fixed, the difference in dimension H between the two rows of fins may not match the length of the connector. This can cause the connector to deform, which in turn applies thrust or pull to the fins connected to the connector, causing them to deform. This deformation of the fins can wear out the heat exchange tubes, potentially leading to refrigerant leakage. Connecting the two rows of fins with a retractable connector can reduce noise and potential refrigerant leakage in fin-type heat exchangers.

[0028] Figure 1 A multi-fin heat exchanger 10 according to the present invention is shown. The fin heat exchanger 10 includes a first row of fins 11, a second row of fins 12, a connector 13, and heat exchange tubes 15. The first row of fins 11 and the second row of fins 12 are arranged side by side, each including a plurality of stacked fins 14. A dimensional difference H exists between the first row of fins 11 and the second row of fins 12. The connector 13 flexibly connects the first row of fins 11 and the second row of fins 12, allowing the length of the connector 13 to be adjusted to accommodate the dimensional difference H within a certain range. This reduces noise between the first row of fins 11 and the second row of fins 12, minimizes deformation of the fins connected to the connector, and reduces the risk of abrasion of the heat exchange tubes by deformed fins.

[0029] In some embodiments of the present invention, Figure 2a As shown, connector 13 is provided with an elastic structure 133 that is capable of expansion and contraction under load. If the dimensional difference H between the first row of fins 11 and the second row of fins 12 is greater than the initial length of connector 13, connector 13 connecting the first and second rows of fins 11, 12 will experience tension, causing elastic structure 133 to stretch and lengthen. If the dimensional difference H between the first and second rows of fins 11, 12 is less than the initial length of connector 13, connector 13 will experience thrust, causing elastic structure 133 to contract and shorten.

[0030] In some embodiments of the present invention, Figure 1 As shown, at one end where the first row of fins 11 and the second row of fins 12 have a size difference H, that is, the end where the first row of fins 11 and the second row of fins 12 are not aligned, the first connecting portion 131 of the connecting member 13 is connected to the outermost fin 14 of the first row of fins 11, the second connecting portion 132 of the connecting member 13 is connected to the outermost fin 14 of the second row of fins 12, and the elastic structure 133 is arranged between the first connecting portion 131 and the second connecting portion 132.

[0031] In some embodiments of the present invention, Figure 5As shown, at one end where the first row of fins 11 and the second row of fins 12 have a size difference H, that is, the end where the first row of fins 11 and the second row of fins 12 are not aligned, the first connecting portion 131 of the connecting member 13 is connected to the fin stacking side of the first row of fins 11, the second connecting portion 132 of the connecting member 13 is connected to the fin stacking side of the second row of fins 12, and the elastic structure 133 is arranged between the first connecting portion 131 and the second connecting portion 132.

[0032] In some embodiments of the present invention, at one end where the first row of fins 11 and the second row of fins 12 have a size difference H, that is, one end where the first row of fins 11 and the second row of fins 12 are not aligned, the first connecting portion 131 of the connecting member 13 is connected to the outermost fin 14 of the first row of fins 11 and one of the fin stacking sides, the second connecting portion 132 of the connecting member 13 is connected to the outermost fin 14 of the second row of fins 12 and the other of the fin stacking sides, and the elastic structure 133 is arranged between the first connecting portion 131 and the second connecting portion 132.

[0033] In some embodiments of the present invention, connector 13 is elastic so that it can expand and contract when subjected to force. Optionally, elastic structure 133 is made of an elastic material, while the rest of connector 13 is made of a less elastic material. Elastic structure 133 and the rest of connector 13 are detachably connected or integrally formed. Connector 13 can also be made of the same elastic material.

[0034] In some embodiments of the present invention, the connector 13 and / or the elastic structure 133 are made of sheet material. Alternatively, the elastic structure 133 can be made of sheet material, while the rest of the connector 13 can be made of other materials. Alternatively, the connector 13 is made of sheet material, and the elastic structure 133 is thinner than the rest of the connector 13. Due to the thinner sheet material of the elastic structure 133, the connector 13 is more easily able to expand and contract when subjected to force. Sheet material is more convenient to process and more cost-effective.

[0035] In some embodiments of the present invention, the elastic structure 133 has a protruding area, which is configured to be stretched or contracted when subjected to force, thereby making the length of the connecting member 13 adjustable.

[0036] In some embodiments of the present invention, Figure 2b As shown, the elastic structure 133 is provided with an angled portion, the opening of which is further opened or closed when subjected to force, so that the length of the connecting member 13 can be adjusted. The angled portion is, for example, a V-shaped portion.

[0037] In some embodiments of the present invention, Figure 3As shown, the elastic structure 133 is provided with a step portion, the opening of which is further opened or closed when subjected to force, so that the length of the connecting member 13 can be adjusted. Figure 2b Compared with the embodiment shown, except that the angled portion is replaced by a stepped portion, other parts of the connecting member 13 are similar. Optionally, the cross-sectional shape of the stepped portion is rectangular.

[0038] In some embodiments of the present invention, Figure 4 As shown, the elastic structure 133 is provided with an arc portion, the opening of which is further opened or closed when subjected to force, so that the length of the connecting member 13 can be adjusted. Figure 2b Compared with the embodiment shown, except that the angled portion is replaced by an arc portion, other parts of the connecting member 13 are similar. Optionally, the cross-section of the arc portion is an arc.

[0039] In some embodiments of the present invention, the elastic structure 133 is provided with various combinations of at least two of an angled portion, a stepped portion, and an arc portion.

[0040] In some embodiments of the present invention, Figure 2a and 2c As shown, the angled portion is provided with a first opening 134, which is located between the first connecting portion 131 and the second connecting portion 132 and passes through the angled portion to facilitate connecting the second connecting portion 132 to the second row of fins 12, thereby preventing the angled portion from blocking the connection position between the two and also improving the elasticity of the elastic structure 133. Figure 2c As shown, multiple first openings 134 can be provided at intervals, allowing for greater flexibility in the location of the connection point between the second connection portion 132 and the second row of fins 12. Optionally, along the direction from the first connection portion 131 to the second connection portion 132, the width of the first opening 134 in the middle is smaller than the width of the ends of the first opening 134. Optionally, along the direction from the first connection portion 131 to the second connection portion 132, the width of the first opening 134 tapers from the ends to the middle. This allows the elastic structure 133 to maintain a certain degree of elasticity while enhancing its rigidity in the middle.

[0041] In some embodiments of the present invention, Figure 1 As shown, the first connecting portion 131 and the second connecting portion 132 of the connecting member 13 are provided with a second opening 135, so that when the first connecting portion 131 and the second connecting portion 132 are connected to the outermost fin 14, the elbow of the heat exchange tube 104 extending from the outermost fin 14 extends out from the second opening 135. Optionally, the second opening 135 may be an elongated hole to facilitate the elbow of the heat exchange tube 104 to pass through.

[0042] Another aspect of the present invention provides an air conditioning device, comprising the aforementioned fin-type heat exchanger 10 .

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solutions of the present invention. They should all be included in the scope of the technical solutions for which protection is requested by the present invention.

Claims

1. A finned heat exchanger (10), characterized in that: include: A first row of fins (11) and a second row of fins (12) are arranged side by side, each of the first row of fins (11) and the second row of fins (12) comprising a plurality of stacked fins (14) and having a size difference H therebetween; and A connecting member (13) connecting the first row of fins (11) and the second row of fins (12) in a telescopic manner; The connecting member (13) is provided with an elastic structure (133), and the elastic structure (133) is retractable under force. The connecting member (13) comprises a first connecting portion (131), a second connecting portion (132), and the elastic structure (133) located between the first connecting portion (131) and the second connecting portion (132), wherein there is an end with a size difference H between the first row of fins (11) and the second row of fins (12), the first connecting portion (131) of the connecting member (13) is connected to the first row of fins (11), and the second connecting portion (132) of the connecting member (13) is connected to the second row of fins (12); The elastic structure (133) has a protruding area, and the protruding area of ​​the elastic structure (133) includes an angular portion, a step portion and / or an arc portion, and the angular portion, the step portion or the arc portion is provided with a first opening (134).

2. The finned heat exchanger (10) according to claim 1, characterized in that: The first connecting portion (131) of the connecting member (13) is connected to the outermost fin (4) of the first row of fins (11) or the fin stacking side of the first row of fins (11), and the second connecting portion (132) of the connecting member (13) is connected to the outermost fin (4) of the second row of fins (12) or the fin stacking side of the second row of fins (12).

3. The finned heat exchanger (10) according to claim 1 or 2, characterized in that: The connecting member (13) and / or the elastic structure (133) are made of sheet material.

4. The finned heat exchanger (10) according to claim 1, characterized in that The width of the middle portion of the first opening (134) is smaller than the width of the end portions of the first opening (134).

5. The finned heat exchanger (10) according to claim 1, characterized in that: The width of the first opening (134) is gradually reduced from the end to the middle.

6. The finned heat exchanger (10) according to claim 1, characterized in that The first openings (134) are multiple in number and arranged at intervals.

7. The finned heat exchanger (10) according to claim 1, characterized in that: The elastic structure (133) is thinner than the first connecting portion (131) and the second connecting portion (132) in terms of sheet thickness.

8. The finned heat exchanger (10) according to claim 1, characterized in that The connecting piece (13) is elastic.

9. The finned heat exchanger (10) according to claim 1, characterized in that: The connecting piece (13) and / or the elastic structure (133) are made of elastic material.

10. The finned heat exchanger (10) according to claim 1, characterized in that The elasticity of the elastic structure (133) is greater than the elasticity of the first connecting portion (131) and the second connecting portion (132).

11. The finned heat exchanger (10) according to claim 1, characterized in that The elastic structure (133) is made of a different material from the first connecting portion (131) and the second connecting portion (132).

12. The finned heat exchanger (10) according to claim 1, characterized in that The first connecting portion (131) and the second connecting portion (132) of the connecting member (13) are provided with a second opening (135), and the heat exchange tube (104) of the finned heat exchanger (10) extends from the second opening (135).

13. An air conditioning device, characterized in that: A finned heat exchanger (10) comprising the finned heat exchanger (10) according to any one of claims 1 to 12.

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