Core structure of plate-fin radiator

Abstract

The utility model provides a core body structure of a plate-fin radiator, a plurality of rows of cold side channels and a plurality of rows of hot side channels are arranged on the core body structure, and the hot side channels and the cold side channels are arranged along the length direction of the core body structure. Short sealing strips are arranged at the outer ends, in the length direction of the hot side channels, of the cold side channels, outer long sealing strips are arranged at the two ends, in the length direction of the cold side channels, of the hot side channels, and outer long sealing strips are arranged at the two ends, in the length direction of the cold side channels, of the hot side channels; and the middle part of the cold side channel in the length direction is supported and connected through an inner long sealing strip. According to the core body structure of the plate-fin radiator, the short sealing strips close to the two sides of the core body structure in the length direction form a stepped combined structure, so that the influence caused by vibration of a whole machine and continuous alternating change of temperature and pressure can be effectively buffered.

Description

Technical Field

[0001] This utility model relates to the field of radiator technology, and in particular to a core structure of a plate-fin radiator. Background Technology

[0002] Plate-fin heat exchangers are a new type of high-efficiency heat exchange equipment. Due to their compact structure, small size, high strength, and high heat transfer efficiency, they are widely used in various fields such as petroleum, chemical industry, and engineering machinery. They are recognized as one of the most efficient new heat exchangers. Through the introduction of large-scale vacuum brazing furnaces and plate-fin heat exchanger manufacturing technology, the production of plate-fin heat exchangers has developed rapidly.

[0003] However, existing plate-fin radiators have the following problems during use:

[0004] This results in poor stability of the channels on both sides of the core. When the radiator vibrates with the vehicle and the temperature and pressure change constantly, the channels on both sides of the core are prone to cracking and leakage, leading to an increase in radiator quality accidents and a reduction in the service life of the radiator.

[0005] Therefore, in order to solve the above problems, this utility model proposes a core structure for a plate-fin radiator that is not prone to cracking and leakage in the channels on both sides of the core when the whole machine is subjected to vibration and constant alternation of temperature and pressure. Utility Model Content

[0006] To address the problems existing in the core structure of the current plate-fin radiator during use, this utility model provides a core structure for a plate-fin radiator.

[0007] According to one objective of this utility model, this utility model provides a core structure for a plate-fin radiator. The core structure is provided with several rows of cold-side channels and several rows of hot-side channels. Both the hot-side channels and the cold-side channels are arranged along the length direction of the core structure. The cold-side channels are provided with short sealing strips at their outer ends in the length direction of the hot-side channels, and the hot-side channels are provided with outer long sealing strips at both ends in the length direction of the cold-side channels. The hot-side channels near both sides of the length direction of the core structure are supported and connected in the middle of the length direction of the cold-side channels by inner long sealing strips.

[0008] A stepped combination structure is formed between the short seals on both sides of the core structure along its length, wherein the dimensions of the short seals in the stepped combination structure gradually increase along the length of the hot side channel, closer to both ends of the core structure along its length.

[0009] Preferably, the core structure includes side plates arranged opposite each other along the length of the core structure, and partition groups arranged at intervals along the length of the core structure are provided between the side plates. Each partition group includes two partitions arranged opposite each other along the length of the core structure. Inner fins are provided between the partitions, and the inner fins form the hot side channel. Outer fins are provided between two adjacent partition groups along the length of the core structure, and the outer fins form the cold side channel.

[0010] Preferably, the inner length seal includes a first part and a second part connected along the length direction of the cold side channel. The first part is rectangular, and a second part is provided on each side of the first part along the length direction of the cold side channel. The size of the second part gradually decreases away from the first part.

[0011] Preferably, the horizontal cross-section of the second part is an isosceles triangle, and the first part is connected to the base of one of the second parts on each side of the cold side channel along its length.

[0012] Preferably, the outer sealing strip extends outward toward the side of the hot side channel to form a contact portion, and the size of the contact portion gradually decreases as it approaches the hot side channel.

[0013] Preferably, the outer long seal has a rectangular horizontal cross-section, the contact portion has an isosceles triangle horizontal cross-section, and the side of the outer long seal facing the hot side channel is connected to the bottom edge of the contact portion.

[0014] Preferably, the hot-side channels, which are located in the outermost three rows along the length of the core structure, are connected to the cold-side channels by the inner long seal at the middle of the cold-side channel along the length of the core structure.

[0015] Preferably, the cold side channels located near the outermost three rows along the length of the core structure form a stepped combination structure between the corresponding short seals.

[0016] Preferably, the core structure of the plate-fin radiator is an aluminum plate-fin radiator core structure.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] The core structure of this plate-fin radiator improves the brazing effect and overall strength of the hot-side channels near the length of the core structure by adding inner long seals to the hot-side channels on both sides. By forming a stepped combination structure with the short seals near the length of the core structure, the effects of vibration and constant temperature and pressure changes can be effectively buffered, thus solving the problem of cracking and leakage in the hot-side and cold-side channels on both sides of the core structure during operation due to vibration and constant temperature and pressure changes.

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the core structure of a plate-fin radiator according to the present invention from one perspective.

[0021] Figure 2 for Figure 1 Enlarged schematic diagram at point I;

[0022] Figure 3 This is a schematic diagram of the core structure of a plate-fin radiator according to the present invention from another perspective.

[0023] Figure 4 for Figure 3 Enlarged schematic diagram at point II;

[0024] Figure 5 This is a schematic diagram of the inner long sealing strip in the core structure of a plate-fin radiator according to the present invention. Detailed Implementation

[0025] The following description is intended to provide a detailed account of the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0026] Please see Figure 1-4This utility model provides a technical solution: a core structure of a plate-fin radiator, wherein the core structure 100 is provided with a plurality of rows of cold-side channels a and a plurality of rows of hot-side channels b, the hot-side channels b and the cold-side channels a are arranged along the length direction of the core structure 100, the cold-side channels a are provided with a short sealing strip 200 at the outer end of the hot-side channels b in the length direction, and the hot-side channels b are provided with outer long sealing strips 300 at both ends of the cold-side channels a in the length direction, characterized in that the hot-side channels b near the two sides of the core structure 100 in the length direction are supported and connected in the middle of the cold-side channels a in the length direction by an inner long sealing strip 400;

[0027] A stepped combination structure A is formed between the short seals 200 near both sides of the core structure 100 along its length. The dimensions of the short seals 200 in the stepped combination structure A along the length of the hot side channel b gradually increase near both ends of the core structure 100 along its length.

[0028] By adding inner long seals 400 to the hot-side channels b on both sides of the length direction of the core structure 100, the brazing effect and overall strength of the hot-side channels b on both sides of the length direction of the core structure 100 can be improved. By forming a stepped combination structure A with the short seals 200 on both sides of the length direction of the core structure 100, the effects of vibration of the whole machine and constant alternation of temperature and pressure can be effectively buffered, and the problem of cracking and leakage of the hot-side channels b and cold-side channels a on both sides of the core structure 100 on both sides of the length direction of the core structure can be solved.

[0029] See also Figure 1-4 In this embodiment, the core structure 100 includes side plates 101 arranged opposite each other along the length direction of the core structure 100. Partition groups are spaced apart between the side plates 101 along the length direction of the core structure 100. Each partition group includes two partitions 102 arranged opposite each other along the length direction of the core structure 100. Inner fins 103 are disposed between the partitions 102, forming the hot-side channel b. Outer fins 104 are disposed between two adjacent partition groups along the length direction of the core structure 100, forming the cold-side channel a.

[0030] See Figure 5The inner long sealing strip 400 has an approximately rhomboid horizontal cross-section. Specifically, the inner long sealing strip 400 includes a first part 401 and a second part 402 connected along the length direction of the cold side channel a. The first part 401 is rectangular, and a second part 402 is respectively provided on both sides of the first part 401 along the length direction of the cold side channel a. The size of the second part 402 gradually decreases away from the first part 401. As a preferred embodiment, the horizontal cross-section of the second part 402 is isosceles triangular, and the base edge of one of the second parts 402 is respectively connected to both sides of the first part 401 along the length direction of the cold side channel a. Through the above design, the inner fin 103 can be effectively prevented from being pressed, thus avoiding affecting the brazing effect.

[0031] The outer sealing strip 300 extends outward toward the side of the hot-side channel b to form a contact portion 301. The size of the contact portion 301 gradually decreases as it approaches the hot-side channel b. Preferably, the horizontal cross-section of the outer sealing strip 300 is rectangular, and the horizontal cross-section of the contact portion 301 is an isosceles triangle. The side of the outer sealing strip 300 toward the hot-side channel b is connected to the bottom edge of the contact portion 301.

[0032] In this embodiment, the three outermost rows of hot-side channels b near the core structure 100 along the length direction are supported and connected in the middle of the cold-side channel a along the length direction by an inner long seal 400, which can improve the overall strength of these three rows of hot-side channels b.

[0033] The three outermost rows of cold-side channels a along the length of the core structure 100 form a stepped combination structure A between the corresponding short seals 200. The stepped combination structure A can effectively buffer the vibration of the whole machine and the effects of the continuous alternation of temperature and pressure.

[0034] In one embodiment, the core structure of the plate-fin heat sink is an aluminum plate-fin heat sink core structure.

[0035] The core structure of this plate-fin radiator improves the brazing effect and overall strength of the side channels by adding inner sealing strips in the middle of the three outermost rows of hot-side channels b on both sides of the core structure 100 along its length. At the same time, the short sealing strips 200 of the three outermost rows of cold-side channels a on both sides of the core structure 100 adopt a stepped combination sealing strip structure from the outside to the inside, which can effectively buffer the impact of vibration of the whole machine and the continuous alternation of temperature and pressure. The above design solves the problem that the channels on both sides of the core of the existing plate-fin radiator are prone to cracking and leakage due to vibration of the whole machine and continuous alternation of temperature and pressure.

[0036] The embodiments described above are only used to illustrate the technical ideas and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. The scope of patent application of this utility model should not be limited by these embodiments. That is, any equivalent changes or modifications made in accordance with the spirit disclosed in this utility model still fall within the patent scope of this utility model.

Claims

1. A core structure for a plate-fin heat sink, wherein the core structure (100) is provided with a plurality of rows of cold-side channels (a) and a plurality of rows of hot-side channels (b), wherein both the hot-side channels (b) and the cold-side channels (a) are arranged along the length direction of the core structure (100), wherein a short sealing strip (200) is provided at the outer end of the cold-side channel (a) in the length direction of the hot-side channel (b), and an outer long sealing strip (300) is provided at both ends of the hot-side channel (b) in the length direction of the cold-side channel (a), characterized in that, The hot-side channels (b) located near both sides of the core structure (100) along the length direction are supported and connected at the middle of the cold-side channel (a) along the length direction by an inner long seal (400). A stepped combination structure (A) is formed between the short seals (200) on both sides of the length direction of the core structure (100), wherein the dimensions of the short seals (200) in the stepped combination structure (A) in the length direction of the hot side channel (b) gradually increase near both ends of the length direction of the core structure (100).

2. The core structure of a plate-fin radiator according to claim 1, characterized in that, The core structure (100) includes side plates (101) arranged opposite to each other along the length of the core structure (100). A partition group is provided between the side plates (101) and spaced apart along the length of the core structure (100). Each partition group includes two partitions (102) arranged opposite to each other along the length of the core structure (100). An inner fin (103) is provided between the partitions (102) and forms the hot side channel (b). An outer fin (104) is provided between two adjacent partition groups along the length of the core structure (100) and forms the cold side channel (a).

3. The core structure of a plate-fin radiator according to claim 1, characterized in that, The inner long seal (400) includes a first part (401) and a second part (402) connected along the length direction of the cold side channel (a). The first part (401) is rectangular. The first part (401) has a second part (402) on each side of the first part (401) along the length direction of the cold side channel (a). The size of the second part (402) gradually decreases away from the first part (401).

4. The core structure of a plate-fin radiator according to claim 3, characterized in that, The second part (402) has an isosceles triangle shape in its horizontal cross section, and the first part (401) is connected to the bottom edge of one of the second parts (402) on both sides of the cold side channel (a) along its length.

5. The core structure of a plate-fin radiator according to claim 1, characterized in that, The outer sealing strip (300) extends outward toward the side of the hot side channel (b) to form a contact portion (301), the size of which gradually decreases as it approaches the hot side channel (b).

6. The core structure of a plate-fin radiator according to claim 5, characterized in that, The outer long seal (300) has a rectangular horizontal cross-section, and the contact part (301) has an isosceles triangle horizontal cross-section. The outer long seal (300) is connected to the bottom edge of the contact part (301) on the side facing the hot side channel (b).

7. The core structure of a plate-fin radiator according to claim 1, characterized in that, The hot-side channels (b) located in the outermost three rows along the length of the core structure (100) are supported and connected in the middle of the cold-side channels (a) along the length of the core structure (100) by the inner long seal (400).

8. The core structure of a plate-fin radiator according to claim 1, characterized in that, The cold side channels (a) located near the outermost three rows along the length of the core structure (100) form a stepped combination structure (A) between the corresponding short seals (200).

9. The core structure of a plate-fin radiator according to claim 1, characterized in that, The core structure of the plate-fin radiator is an aluminum plate-fin radiator core structure.

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