Heat pipe heat exchanger

Abstract

The utility model provides a heat pipe heat exchanger which comprises a collecting chamber, a flat pipe set and a partition plate, the collecting chamber comprises an upper collecting chamber and a lower collecting chamber which are arranged in parallel up and down, the flat pipe set comprises a plurality of flat pipes arranged between the upper collecting chamber and the lower collecting chamber at intervals, and the upper collecting chamber and the lower collecting chamber are communicated through the flat pipes; the partition plate is arranged between the upper flow collecting chamber and the lower flow collecting chamber and divides the heat exchanger into a condensation part and an evaporation part. The partition plates comprise the first partition plate and the second partition plate which are vertically overlapped, one side of the first partition plate is arranged in a comb tooth shape, the first partition plate comprises a plurality of notches which are arranged at intervals and used for containing the flat pipes, the opening directions of the first partition plate notches and the second partition plate notches are opposite, and the first partition plate notches and the second partition plate notches are vertically overlapped to form a sealing opening which is closed in the circumferential direction and used for allowing the flat pipes to pass through. The first partition plate and the second partition plate are overlapped to isolate the condensation portion and the evaporation portion of the heat exchanger, water cannot leak into the evaporation portion through the partition plates after brazing, and the waterproof requirement under the using situation is met.

Description

Technical Field

[0001] The utility model relates to the technical field of heat conduction, in particular to a heat pipe heat exchanger. Background Art

[0002] In many devices such as power and electrical equipment, communication base stations, etc., electronic components emit a lot of heat. If it is not discharged in time, it is easy to cause the equipment to shut down due to high temperature, or even cause safety accidents. However, in many such devices, due to equipment energy efficiency limitations, installation conditions, or other factors, water cooling or active cooling system heat dissipation cannot be used. Heat pipe air-cooled heat exchangers have become the best choice for efficient heat dissipation.

[0003] Currently, heat pipe heat exchangers are divided into integrated and split types. The split type heat pipe heat exchanger has a relatively complex structure and high cost; the integrated type heat pipe heat exchanger is relatively simple, but in some application scenarios that require waterproof isolation, there are certain problems in its design and production.

[0004] Therefore, it is necessary to provide a heat pipe heat exchanger to overcome the above-mentioned defects. Utility Model Content

[0005] The utility model aims to provide a heat pipe heat exchanger.

[0006] According to one aspect of the utility model, a heat pipe heat exchanger is provided, comprising:

[0007] A collecting chamber, the collecting chamber comprising an upper collecting chamber and a lower collecting chamber arranged in parallel up and down;

[0008] A flat tube group, the flat tube group comprising a plurality of flat tubes spaced between an upper collecting chamber and a lower collecting chamber, one end of the flat tube being plugged into the upper collecting chamber, and the other end being plugged into the lower collecting chamber, the upper collecting chamber and the lower collecting chamber being connected by the plurality of the flat tubes;

[0009] A partition, the partition is arranged between the upper collecting chamber and the lower collecting chamber, and the partition divides the heat exchanger into a condensation part located above the partition and an evaporation part located below the partition;

[0010] The partition includes a first partition and a second partition overlapped with each other. One side of the first partition is arranged in a comb-tooth shape, including a plurality of slots arranged at intervals and used to accommodate flat tubes. The opening directions of the first partition slot and the second partition slot are arranged in opposite directions, and overlapped with each other to form a circumferentially closed sealing opening for the flat tubes to pass through.

[0011] Preferably, one side of the notch is open, and the other side is arc-shaped, and the open side is provided with a guide opening which is connected with the notch and extends outward from the notch.

[0012] Preferably, the heat pipe heat exchanger further comprises a mounting plate for mounting the partition, wherein the mounting plate is arranged on the circumferential outer side of the partition, and the mounting plate comprises a through opening for the flat tube group to pass through and a mounting groove for setting the partition.

[0013] Preferably, the first partition and the second partition are of the same size, the through-port is arranged at the bottom of the mounting groove and vertically passes through the mounting groove, the width of the through-port is smaller than the width of the partition, the depth of the mounting groove is the sum of the thicknesses of the first partition and the second partition, and the width of the mounting groove is greater than the width of the through-port.

[0014] Preferably, the heat pipe heat exchanger further comprises side plates arranged on both sides of the flat tube group, the width of the side plates is greater than the width of the flat tubes and less than the width of the partition, and the side plates are located outside the partition.

[0015] Preferably, the length of the through opening is equal to the distance between the outer surfaces of the two side panels. The length of the mounting groove is equal to the distance between the inner surfaces of the two side panels.

[0016] Preferably, the intervals between adjacent flat tubes in the flat tube group are the same, fins are provided between adjacent flat tubes, and fins are provided between the side plates and adjacent flat tubes.

[0017] Preferably, a refrigerant filling port is provided on the upper collecting chamber.

[0018] Preferably, a fan installation shell is provided on one side of the evaporation portion, the fan installation shell is located below the installation plate, and an air duct outlet is opened on the fan installation shell.

[0019] Compared with the prior art, the heat pipe heat exchanger provided by the utility model has the following beneficial effects:

[0020] Due to the adoption of the above-mentioned technical scheme, the utility model has the advantages of simple structure, ingenious design and low cost. The first partition and the second partition are overlapped to achieve the isolation of the condensation part and the evaporation part of the heat exchanger. After brazing, it is ensured that water will not leak into the evaporation part through the partition, thereby meeting the waterproof requirements in the use scenario. At the same time, the setting of the mounting plate and the partition meets the structural strength requirements, simplifies the production steps, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0022] Figure 1 The utility model is a three-dimensional heat pipe heat exchanger Figure 1 ;

[0023] Figure 2 The utility model is a three-dimensional heat pipe heat exchanger Figure 2;

[0024] Figure 3 A top view of the partition of the utility model installed on the mounting plate;

[0025] Figure 4 It is an exploded view of the partition and the mounting plate of the utility model when being installed;

[0026] Figure 5 It is a front view of the first partition of the utility model;

[0027] Figure 6 It is a three-dimensional diagram of the mounting plate of the utility model;

[0028] Figure 7 This is a three-dimensional diagram of the first partition and the second partition of the utility model being overlapped.

[0029] Among them, A. Condensation part, B. Evaporation part, 1. Upper collecting chamber, 11. Refrigerant filling port, 2. Lower collecting chamber, 3. Flat tube group, 31. Flat tube, 4. Partition, 41. First partition, 42. Second partition, 43. Notch, 44. Plate teeth, 45. Guide port, 5. Mounting plate, 51. Through port, 52. Mounting slot, 6. Side plate, 7. Fan mounting shell, 71. Air duct outlet, 8. Sealing port. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0032] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0033] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0034] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0035] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0036] See also Figure 1 and Figure 2 , this embodiment discloses a heat pipe heat exchanger, including a collecting chamber, a flat tube group 3 and a partition 4. The collecting chamber includes an upper collecting chamber 1 and a lower collecting chamber 2 which are arranged in parallel up and down. The upper collecting chamber 1 and the lower collecting chamber 2 are connected through the flat tube group 3, and a refrigerant filling port 11 is provided on the upper collecting chamber 1. The flat tube group 3 includes a plurality of flat tubes 31 which are arranged at equal intervals and plugged between the upper collecting chamber 1 and the lower collecting chamber 2. The upper end of the flat tube 31 is plugged and connected with the upper collecting chamber 1, and the lower end is plugged and connected with the lower collecting chamber 2. Side plates 6 are respectively provided on both sides of the flat tube group 3. The upper end of the side plate 6 is connected to the upper collecting chamber 1, and the lower end of the side plate 6 is connected to the lower collecting chamber 2. The width of the side plate 6 is greater than the width of the flat tube 31 and is located on the outside of the length direction of the partition 4.

[0037] See also Figure 3 , Figure 4 and Figure 5 , the partition 4 is arranged between the upper collecting chamber 1 and the lower collecting chamber 2 and is located in the middle of the flat tube group 3. The partition 4 divides the upper collecting chamber 1, the lower collecting chamber 2 and the flat tube group 3 into two upper and lower chambers that are not connected to each other. The upper chamber is divided into the condensation part A, and the lower chamber is divided into the evaporation part B. The width of the partition 4 is greater than the width of the side plate 6. The partition 4 includes a first partition 41 and a second partition 42 that are overlapped with each other. The first partition 41 and the second partition 42 are the same in size and structure. One side of the first partition 41 is arranged in a comb-tooth shape, including a plurality of notches 43 that are arranged at equal intervals and are used to accommodate the flat tubes 31.

[0038] One side of the notch 43 is open, and the other side is arc-shaped, which can fit with the flat tube 31. A guide opening 45 is provided on the open side, which is connected to the notch 43 and extends outward from the notch 43. The guide opening can effectively reduce the difficulty of the plate teeth 44 of the partition 4 passing through the gap of the flat tube 31, and also reduce the possibility of the plate teeth 44 scratching the wall of the flat tube during installation. The opening directions of the notch 43 of the first partition 41 and the notch 43 of the second partition 42 are oppositely arranged, and overlap up and down to form a circumferentially closed sealing opening 8 for the flat tube 31 to pass through, that is, the first partition 41 and the second partition 42 are overlapped up and down and inserted between the flat tube 31, and together surround the flat tube 31, and the opening direction of the notch 43 of the first partition 41 and the opening direction of the notch 43 of the second partition 42 are located on opposite sides of the flat tube 31.

[0039] See also Figure 6 The heat pipe heat exchanger also includes a mounting plate 5 for mounting the partition 4, the mounting plate 5 is arranged on the circumferential outer side of the partition 4, and the mounting plate 5 includes a through hole 51 for the flat tube group 3 to pass through and a mounting groove 52 for mounting the partition 4. The through hole 51 is arranged at the bottom of the mounting groove 52 and vertically penetrates the mounting groove 52. The width of the through hole 51 is smaller than the width of the partition 4, the depth of the mounting groove 52 is the sum of the thickness of the first partition 41 and the second partition 42, and the width of the mounting groove 52 is greater than the width of the through hole 51. The length of the through hole 51 is equal to the distance between the outer surfaces of the two side plates 6. The length of the mounting groove 52 is equal to the distance between the inner surfaces of the two side plates 6.

[0040] See also Figure 2 Fins (not shown) are provided between adjacent flat tubes 31, and fins (not shown) are provided between the side plate 6 and adjacent flat tubes 31. A fan installation shell 7 is provided on one side of the evaporation portion B, and the fan installation shell 7 is located below the installation plate 5. The fan installation shell 7 is provided with two adjacent air duct outlets 71.

[0041] See also Figure 1 , Figure 3 and Figure 7 , because when the heat exchanger is in use, there may be water outside above the mounting plate 5. In order to prevent water from flowing into the bottom of the mounting plate 5 (especially the evaporation part B below is installed in a special electrical environment, water is strictly prohibited), it is necessary to add a partition 4 between the flat tubes 31 for waterproofing. The surfaces of the first partition 41 and the second partition 42 both contain a composite layer. The heat exchanger and the partition 4 are assembled in a special tooling and brazed in a furnace. The composite layer on the partition 4 melts, and the first partition 41 and the second partition 42 are welded into one and fill the gap between the flat tube 31 and the partition 4, which can effectively ensure the brazing strength of the product and the airtightness of the upper and lower areas. After the partition 4 is installed in the mounting plate 5, a full circle of argon arc welding is performed, or a circle of glue is applied after spot welding to ensure that the product as a whole is watertight.

[0042] When the heat exchanger is working, air flows through the evaporation part B and the condensation part A respectively. When the evaporation part B is heated, the coolant evaporates and absorbs heat, taking away the heat in the equipment below the mounting plate 5. The generated steam flows to the upper collecting chamber 1 through the flat tube 31 under a slight pressure difference, and dissipates the heat to the external environment above the mounting plate 5 through the flat tube wall along the way. The condensate formed after cooling flows back to the evaporation part B under the action of gravity to be heated again, and this cycle repeats.

[0043] The heat pipe heat exchanger of this embodiment adopts the form of a microchannel heat exchanger, and the condensation part A and the evaporation part B are isolated by the design of the middle partition 4. After brazing, it is ensured that water will not leak into the evaporation part B through the partition 4, and at the same time, the production steps are simplified to improve production efficiency.

[0044] It will be apparent to those skilled in the art that various modifications and variations can be made to the above exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention covers modifications and variations of the present invention that fall within the scope of the appended claims and their equivalent technical solutions.

Claims

1. A heat pipe heat exchanger, characterized in that: include: A collecting chamber, the collecting chamber comprising an upper collecting chamber and a lower collecting chamber arranged in parallel up and down; A flat tube group, the flat tube group comprising a plurality of flat tubes spaced between an upper collecting chamber and a lower collecting chamber, one end of the flat tube being plugged into the upper collecting chamber, and the other end being plugged into the lower collecting chamber, the upper collecting chamber and the lower collecting chamber being connected by the plurality of the flat tubes; A partition, the partition is arranged between the upper collecting chamber and the lower collecting chamber, and the partition divides the heat exchanger into a condensation part located above the partition and an evaporation part located below the partition; The partition includes a first partition and a second partition which are overlapped and have the same size and structure. One side of the first partition is arranged in a comb-tooth shape, including a plurality of slots arranged at intervals and used to accommodate flat tubes. The opening directions of the first partition slot and the second partition slot are arranged in opposite directions, and overlapped up and down to form a circumferentially closed sealing opening for the flat tubes to pass through.

2. The heat pipe heat exchanger according to claim 1, characterized in that: One side of the slot is open, and the other side is arc-shaped. The open side is provided with a guide opening which is connected with the slot and extends outward from the slot.

3. The heat pipe heat exchanger according to claim 2, characterized in that: The heat pipe heat exchanger also includes a mounting plate for mounting the partition, the mounting plate is arranged on the circumferential outer side of the partition, and the mounting plate includes a through hole for the flat tube group to pass through and a mounting groove for setting the partition.

4. The heat pipe heat exchanger according to claim 3, characterized in that: The first partition and the second partition are of the same size, the through opening is arranged at the bottom of the mounting groove and vertically passes through the mounting groove, the width of the through opening is smaller than the width of the partition, the depth of the mounting groove is the sum of the thicknesses of the first partition and the second partition, and the width of the mounting groove is greater than the width of the through opening.

5. The heat pipe heat exchanger according to claim 4, characterized in that: The heat pipe heat exchanger further includes side plates arranged on both sides of the flat tube group, the width of the side plates is greater than the width of the flat tubes and smaller than the width of the partition, and the side plates are located outside the partition.

6. The heat pipe heat exchanger according to claim 5, characterized in that: The length of the through opening is equal to the distance between the outer surfaces of the two side panels, and the length of the mounting groove is equal to the distance between the inner surfaces of the two side panels.

7. The heat pipe heat exchanger according to claim 6, characterized in that: The spacings between adjacent flat tubes in the flat tube group are the same, fins are arranged between adjacent flat tubes, and fins are arranged between the side plates and adjacent flat tubes.

8. The heat pipe heat exchanger according to claim 7, characterized in that: The upper collecting chamber is provided with a refrigerant filling port.

9. The heat pipe heat exchanger according to claim 8, characterized in that: A fan installation shell is provided on one side of the evaporation part. The fan installation shell is located below the installation plate. An air duct outlet is opened on the fan installation shell.

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