Heat exchanger flat tube of micro-channel heat exchanger
By introducing connecting components and dustproof components into the microchannel heat exchanger, the problem of inconvenient disassembly and lack of dustproof for the heat conducting plates is solved, the convenience of rapid fixing of the heat conducting plates and effective dust prevention is achieved, and the maintenance efficiency and heat dissipation effect of the equipment are improved.
Patent Information
- Application Number
- CN202422313661.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-09-20
AI Technical Summary
In existing microchannel heat exchangers, the thermal conductor plate is not convenient for quick disassembly and assembly and fixation, and the air induced fan lacks dustproof function, resulting in high maintenance costs and easy blowing of dust toward the fins.
The connection components and dust-proof components are adopted. The connection components are quickly disassembled, as well as fixed by plug plates, slide rods, limit plates and springs. The dust-proof components prevent dust from entering through dust plates and fixing bolts, and are combined with the limit assembly and magnetic block to achieve stability.
It realizes convenient disassembly and assembly of the thermal conductor plate and effective dust prevention, reduces maintenance costs, avoids dust blowing toward the fins, and improves the service life and heat dissipation efficiency of the equipment.
Smart Images
Figure CN223271738U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of microchannel heat exchangers, and in particular relates to a flat heat exchanger tube of a microchannel heat exchanger. Background Art
[0002] Microchannel heat exchangers (MCUs), also known as microchannel heat exchangers, have channels with an equivalent diameter of 10-1000 μm. These heat exchangers have dozens of tiny flow channels within their flat tubes, which are connected to circular headers at both ends. Baffles within the headers divide the heat exchanger flow into several separate flow paths.
[0003] Chinese patent application No. 2022208949077 discloses a flat tube assembly for a microchannel heat exchanger, including a microchannel body, the microchannel body including a header, flat tubes, fins, a heat insulation plate and a heat conduction plate, the width of the microchannel body is provided with a mirror-set header on both sides, the inner side of the header is provided with a plurality of connecting grooves at equal intervals up and down, the connecting grooves on the inner side of the header are connected to the flat tubes, the outer periphery of both ends of the flat tubes are sleeved with a sealing connecting plate, fins are provided between the inner side surfaces of the header and on the inner sides of every two adjacent flat tubes, and a heat conduction plate is provided between the edges of the inner side surfaces of the header. Compared with the existing microchannel heat exchanger, the utility model can be easily disassembled and replaced by a new one when the flat tubes inside the heat exchanger are damaged or aged through design, without replacing the entire heat exchanger, thereby reducing maintenance costs.
[0004] The above-mentioned patent connects the heat conduction plate and the flat tube with bolts, which makes it inconvenient to quickly disassemble and fix the heat conduction plate. At the same time, the original device sets an induced draft fan in the heat conduction plate, but the induced draft fan does not have a dust-proof function, and the induced draft fan easily blows dust and other impurities toward the fins. Utility Model Content
[0005] In order to solve the problems raised in the above background technology, the utility model provides a heat exchanger flat tube of a microchannel heat exchanger, which has the characteristic of facilitating rapid disassembly, assembly and fixation of a heat conducting plate.
[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a flat tube of a heat exchanger of a microchannel heat exchanger, comprising a plurality of flat tubes, headers being provided at both ends of the plurality of flat tubes, fins being provided between adjacent flat tubes, a heat insulation plate being provided at one end of the flat tube, a heat conduction plate being provided at the other end of the flat tube, an induced draft fan being provided in the heat conduction plate, a dustproof assembly being provided at a position at one end of the heat conduction plate corresponding to the induced draft fan, and the heat conduction plate and the flat tubes being connected by a connecting assembly.
[0007] Preferably, the connecting assembly includes a fixed cylinder, an insert plate, a slot, a card hole, a pull plate, a limit plate, a spring, a limit assembly and a slide rod, wherein an insert plate is provided on both sides of one end of the heat conduction plate, a slot corresponding to the insert plate is provided at one end of the flat tubes on both sides, a fixed cylinder is provided at a position corresponding to the slot at one end of the flat tube, a slide rod is provided in the fixed cylinder, a pull plate is provided at one end of the slide rod, a limit plate is welded on the surface of the slide rod, a spring is provided on the outside of the slide rod between the limit plate and the fixed cylinder, a card hole corresponding to the slide rod is provided in the insert plate, and a limit assembly is provided at a position corresponding to the pull plate at one end of the flat tube.
[0008] Preferably, the limiting assembly includes a rotating shaft, a rotating plate, a magnet one and a magnet two, wherein a rotating shaft is provided on the flat tubes at both ends at positions corresponding to the pull plates, a rotating plate is provided at the other end of the rotating shaft, a magnet one is provided on one side of the lower end of the rotating plate, and a magnet two is provided on the upper end of the pull plate at a position corresponding to the magnet one.
[0009] Preferably, the rotating shaft and the flat tube are connected via a damping rotation, and when the pulling plate is not pulled, the upper end of the pulling plate is flush with the lower end of the rotating plate.
[0010] Preferably, the dustproof assembly includes a dustproof plate, a clamping block, a fixing frame, a fixing bolt and a fixing hole, wherein a dustproof plate is provided at a position corresponding to the induced draft fan at one end of the heat conduction plate, clamping blocks are provided at both ends of the dustproof plate, and fixing frames are provided at positions corresponding to the clamping blocks on both sides of one end of the heat conduction plate, the clamping block and the fixing frame are connected by fixing bolts, and a fixing hole corresponding to the fixing bolt is provided at one end of the clamping block.
[0011] Preferably, the fixing frame is provided with through holes corresponding to the fixing bolts, and after the clamping block enters the fixing frame, the side of the clamping block is in close contact with the inner wall of the fixing frame.
[0012] Compared with the prior art, the beneficial effects of the present invention are:
[0013] 1. The utility model sets a connecting component. When the heat conducting plate is installed, the pull plate is pulled to drive the slide rod and the limit plate to slide in the fixed tube. The spring is compressed, and then the plug plate at one end of the heat conducting plate is inserted into the slot of the flat tube. The pull plate is released, and the spring stretches to push one end of the slide rod into the card hole of the plug plate, thereby achieving the effect of limiting and fixing the plug plate and the heat conducting plate. The setting of the connecting component facilitates the disassembly, assembly and fixation of the heat conducting plate.
[0014] 2. The utility model sets a dustproof component, places the dustproof plate at the position corresponding to the induced draft fan at one end of the heat conduction plate, inserts the clamping blocks at both ends of the dustproof plate into the fixing frame, and then screws the fixing bolts into the fixing holes of the clamping blocks to achieve the effect of limiting and fixing the clamping blocks and the dustproof plate. The dustproof plate plays a dustproof role and prevents the induced draft fan from blowing dust and other impurities toward the fins. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional diagram of the utility model;
[0016] Figure 2 This is an exploded perspective view of the utility model;
[0017] Figure 3 This is a cutaway perspective view of the fixed cylinder of the utility model;
[0018] Figure 4 This is a three-dimensional diagram of the turning plate of the utility model;
[0019] In the figure: 1. Manifold; 2. Connecting assembly; 21. Fixing tube; 22. Insert plate; 23. Slot; 24. Clamping hole; 25. Pull plate; 26. Limiting plate; 27. Spring; 28. Limiting assembly; 281. Rotating shaft; 282. Rotating plate; 283. Magnetic block 1; 284. Magnetic block 2; 29. Sliding rod; 3. Dustproof assembly; 31. Dustproof plate; 32. Clamping block; 33. Fixing frame; 34. Fixing bolt; 35. Fixing hole; 4. Heat insulation board; 5. Flat tube; 6. Heat conduction plate; 7. Fin; 8. Induced draft fan. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0021] Example 1
[0022] See also Figure 1-4 The utility model provides the following technical solutions: a flat tube of a heat exchanger of a microchannel heat exchanger, comprising a plurality of flat tubes 5, a header 1 being provided at both ends of the plurality of flat tubes 5, fins 7 being provided between adjacent flat tubes 5, a heat insulation plate 4 being provided at one end of the flat tube 5, a heat conduction plate 6 being provided at the other end of the flat tube 5, an induced draft fan 8 being provided in the heat conduction plate 6, a dustproof component 3 being provided at a position at one end of the heat conduction plate 6 corresponding to the induced draft fan 8, and the heat conduction plate 6 and the flat tube 5 being connected by a connecting component 2.
[0023] Specifically, the connecting component 2 includes a fixed cylinder 21, an insert plate 22, a slot 23, a card hole 24, a pull plate 25, a limit plate 26, a spring 27, a limit assembly 28 and a slide rod 29, wherein an insert plate 22 is provided on both sides of one end of the heat conducting plate 6, a slot 23 corresponding to the insert plate 22 is provided at one end of the flat tubes 5 on both sides, a fixed cylinder 21 is provided at a position corresponding to the slot 23 at one end of the flat tube 5, a slide rod 29 is provided in the fixed cylinder 21, a pull plate 25 is provided at one end of the slide rod 29, a limit plate 26 is welded on the surface of the slide rod 29, a spring 27 is provided on the outside of the slide rod 29 between the limit plate 26 and the fixed cylinder 21, a card hole 24 corresponding to the slide rod 29 is provided in the insert plate 22, and a limit assembly 28 is provided at a position corresponding to the pull plate 25 at one end of the flat tube 5.
[0024] By adopting the above technical solution, when the heat conducting plate 6 is installed, the pull plate 25 is pulled to drive the slide rod 29 and the limit plate 26 to slide in the fixed tube 21, and the spring 27 is compressed. Then the plug plate 22 at one end of the heat conducting plate 6 is inserted into the slot 23 of the flat tube 5, and the pull plate 25 is released. The spring 27 is stretched and pushes one end of the slide rod 29 into the card hole 24 of the plug plate 22, thereby achieving the effect of limiting and fixing the plug plate 22 and the heat conducting plate 6. By setting the connecting component 2, it is convenient to disassemble, assemble and fix the heat conducting plate 6.
[0025] Specifically, the limiting assembly 28 includes a rotating shaft 281, a rotating plate 282, a magnet 1 283 and a magnet 2 284, wherein a rotating shaft 281 is provided at a position corresponding to the pull plate 25 on the flat tubes 5 at both ends, a rotating plate 282 is provided at the other end of the rotating shaft 281, a magnet 1 283 is provided on one side of the lower end of the rotating plate 282, and a magnet 2 284 is provided at a position corresponding to the magnet 1 283 on the upper end of the pull plate 25.
[0026] By adopting the above technical solution, when there is no need to pull the pulling plate 25, the rotating plate 282 is turned, and the rotating plate 282 rotates on the flat tube 5 through the rotating shaft 281. After the rotating plate 282 rotates to the side of the pulling plate 25, the magnetic block 1 283 at one end of the rotating plate 282 is adsorbed with the magnetic block 2 284 on the pulling plate 25, so as to achieve the effect of limiting and fixing the pulling plate 25. By setting the limiting component 28, the pulling plate 25 can be limited to avoid pulling the pulling plate 25 by mistake.
[0027] Specifically, the rotating shaft 281 is connected to the flat tube 5 through a damping rotation. When the pulling plate 25 is not pulled, the upper end of the pulling plate 25 is flush with the lower end of the rotating plate 282.
[0028] By adopting the above technical solution, the rotating shaft 281 is not likely to rotate on its own, and the rotating plate 282 has a better limiting effect on the pulling plate 25.
[0029] When the flat tubes 5 of the microchannel heat exchanger are used in this embodiment, the device is installed in a suitable position. The fins 7 between the adjacent flat tubes 5 play a role in heat dissipation. At the same time, the induced draft fan 8 in the heat conducting plate 6 can blow air to dissipate heat and cool the fins 7. By setting the connecting component 2, when the heat conducting plate 6 is installed, the pull plate 25 is pulled to drive the slide rod 29 and the limit plate 26 to slide in the fixed cylinder 21, and the spring 27 is compressed. Then, the plug plate 22 at one end of the heat conducting plate 6 is inserted into the slot 23 of the flat tube 5, and the pull plate 25 is released. The spring 27 is stretched to push one end of the slide rod 29 into the card hole 24 of the plug plate 22. In the process, the effect of limiting and fixing the plug plate 22 and the heat conducting plate 6 is achieved. By setting the connecting component 2, it is convenient to disassemble and fix the heat conducting plate 6. By setting the limiting component 28, when there is no need to pull the pulling plate 25, the rotating plate 282 is toggled, and the rotating plate 282 rotates on the flat tube 5 through the rotating shaft 281. After the rotating plate 282 rotates to the side of the pulling plate 25, the magnetic block 1 283 at one end of the rotating plate 282 is adsorbed with the magnetic block 2 284 on the pulling plate 25, achieving the effect of limiting and fixing the pulling plate 25. By setting the limiting component 28, the pulling plate 25 can be limited to avoid accidentally pulling the pulling plate 25.
[0030] Example 2
[0031] The difference between this embodiment and embodiment 1 is that the dustproof component 3 includes a dustproof plate 31, a clamping block 32, a fixing frame 33, a fixing bolt 34 and a fixing hole 35, wherein the dustproof plate 31 is provided at a position corresponding to the induced draft fan 8 at one end of the heat conduction plate 6, clamping blocks 32 are provided at both ends of the dustproof plate 31, and fixing frames 33 are provided at positions corresponding to the clamping blocks 32 on both sides of one end of the heat conduction plate 6, the clamping block 32 and the fixing frame 33 are connected by a fixing bolt 34, and a fixing hole 35 corresponding to the fixing bolt 34 is provided at one end of the clamping block 32.
[0032] By adopting the above technical solution, the dustproof plate 31 is placed at the position corresponding to the induced draft fan 8 at one end of the heat conducting plate 6, the blocks 32 at both ends of the dustproof plate 31 enter the fixing frame 33, and then the fixing bolts 34 are screwed into the fixing holes 35 of the blocks 32, so as to achieve the effect of limiting and fixing the blocks 32 and the dustproof plate 31. The dustproof plate 31 plays a dustproof role, preventing the induced draft fan 8 from blowing dust and other impurities toward the fins 7.
[0033] Specifically, the fixing frame 33 is provided with through holes corresponding to the fixing bolts 34 . After the clamping block 32 enters the fixing frame 33 , the side of the clamping block 32 is in close contact with the inner wall of the fixing frame 33 .
[0034] By adopting the above technical solution, after the clamping block 32 enters the fixing frame 33 , the clamping block 32 is more stable in the fixing frame 33 , and the fixing bolt 34 can pass through the fixing frame 33 and be screwed into the fixing hole 35 of the clamping block 32 .
[0035] When this embodiment is used, by setting the dustproof component 3, the dustproof plate 31 is placed at the position of one end of the heat conduction plate 6 corresponding to the induced draft fan 8, the blocks 32 at both ends of the dustproof plate 31 enter the fixing frame 33, and then the fixing bolts 34 are screwed into the fixing holes 35 of the blocks 32, so as to achieve the effect of limiting and fixing the blocks 32 and the dustproof plate 31. The dustproof plate 31 plays a dustproof role, preventing the induced draft fan 8 from blowing dust and other impurities toward the fins 7.
[0036] The structure and working principle of the header 1, insulation plate 4, flat tube 5, heat conducting plate 6, fin 7 and induced draft fan 8 in the utility model have been disclosed in a flat tube assembly for a microchannel heat exchanger disclosed in Chinese patent application No. 2022208949077. Its working principle is that the fins 7 between adjacent flat tubes 5 play a heat dissipation role, and at the same time, the induced draft fan 8 in the heat conducting plate 6 can blow air to dissipate heat and cool the fins 7.
[0037] The working principle and use process of the present invention: When the flat tubes 5 of the microchannel heat exchanger are in use, the device is installed in a suitable position, and the fins 7 between adjacent flat tubes 5 play a role in heat dissipation. At the same time, the induced draft fan 8 in the heat conducting plate 6 can blow air to dissipate heat and cool the fins 7. By setting the connecting component 2, when the heat conducting plate 6 is installed, the pull plate 25 is pulled to drive the slide bar 29 and the limit plate 26 to slide in the fixed cylinder 21, and the spring 27 is compressed. Then, the plug plate 22 at one end of the heat conducting plate 6 is inserted into the slot 23 of the flat tube 5, and the pull plate 25 is released. The spring 27 stretches and pushes one end of the slide bar 29 into the card hole 24 of the plug plate 22, so as to achieve the effect of limiting and fixing the plug plate 22 and the heat conducting plate 6. By setting the connecting component 2, it is convenient to disassemble and fix the heat conducting plate 6. By setting the limiting component 28, there is no need to When the pulling plate 25 is pulled, the rotating plate 282 is toggled, and the rotating plate 282 rotates on the flat tube 5 through the rotating shaft 281. After the rotating plate 282 rotates to the side of the pulling plate 25, the magnetic block 1 283 at one end of the rotating plate 282 is adsorbed by the magnetic block 2 284 on the pulling plate 25, achieving the effect of limiting and fixing the pulling plate 25. By setting the limiting component 28, the pulling plate 25 can be limited to avoid accidentally pulling the pulling plate 25. By setting the dustproof component 3, the dustproof plate 31 is placed to the position corresponding to the induced draft fan 8 at one end of the heat conducting plate 6, and the blocks 32 at both ends of the dustproof plate 31 enter the fixing frame 33, and then the fixing bolts 34 are screwed into the fixing holes 35 of the blocks 32, so as to achieve the effect of limiting and fixing the blocks 32 and the dustproof plate 31. The dustproof plate 31 plays a dustproof role, preventing the induced draft fan 8 from blowing dust and other impurities toward the fins 7.
[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A microchannel heat exchanger flat tube, comprising a plurality of flat tubes (5), wherein both ends of the plurality of flat tubes (5) are provided with headers (1), fins (7) are provided between adjacent flat tubes (5), a heat insulation plate (4) is provided at one end of the flat tube (5), a heat conduction plate (6) is provided at the other end of the flat tube (5), and an induced draft fan (8) is provided in the heat conduction plate (6), characterized in that: A dustproof component (3) is provided at a position of one end of the heat conducting plate (6) corresponding to the induced draft fan (8), and the heat conducting plate (6) and the flat tube (5) are connected via a connecting component (2).
2. The flat tube of the microchannel heat exchanger according to claim 1, characterized in that: The connecting assembly (2) comprises a fixed cylinder (21), an inserting plate (22), a slot (23), a clamping hole (24), a pulling plate (25), a limiting plate (26), a spring (27), a limiting assembly (28) and a sliding rod (29), wherein the inserting plates (22) are provided on both sides of one end of the heat conducting plate (6), the slots (23) corresponding to the inserting plates (22) are provided on one end of the flat tubes (5) on both sides, and a fixed cylinder (21) is provided at a position corresponding to the slots (23) at one end of the flat tubes (5). The fixed cylinder (21) is provided with a slide rod (29), a pull plate (25) is provided at one end of the slide rod (29), a limit plate (26) is welded on the surface of the slide rod (29), a spring (27) is provided on the outside of the slide rod (29) between the limit plate (26) and the fixed cylinder (21), a clamping hole (24) corresponding to the slide rod (29) is provided in the plug plate (22), and a limit assembly (28) is provided at a position corresponding to the pull plate (25) at one end of the flat tube (5).
3. The flat tube of the microchannel heat exchanger according to claim 2, characterized in that: The limiting assembly (28) includes a rotating shaft (281), a rotating plate (282), a first magnetic block (283) and a second magnetic block (284), wherein the rotating shaft (281) is provided at a position corresponding to the pull plate (25) on the flat tubes (5) at both ends, the rotating plate (282) is provided at the other end of the rotating shaft (281), the first magnetic block (283) is provided on one side of the lower end of the rotating plate (282), and the second magnetic block (284) is provided at a position corresponding to the first magnetic block (283) on the upper end of the pull plate (25).
4. The flat tube of the microchannel heat exchanger according to claim 3, characterized in that: The rotating shaft (281) and the flat tube (5) are connected via damping rotation, and when the pulling plate (25) is not pulled, the upper end of the pulling plate (25) is flush with the lower end of the rotating plate (282).
5. The flat tube of the microchannel heat exchanger according to claim 1, characterized in that: The dustproof assembly (3) comprises a dustproof plate (31), a clamping block (32), a fixing frame (33), a fixing bolt (34) and a fixing hole (35), wherein the dustproof plate (31) is provided at a position corresponding to the induced draft fan (8) at one end of the heat conducting plate (6), clamping blocks (32) are provided at both ends of the dustproof plate (31), and fixing frames (33) are provided at positions corresponding to the clamping blocks (32) on both sides of one end of the heat conducting plate (6), the clamping block (32) and the fixing frame (33) are connected via fixing bolts (34), and a fixing hole (35) corresponding to the fixing bolt (34) is provided at one end of the clamping block (32).
6. The flat tube of the microchannel heat exchanger according to claim 5, characterized in that: The fixing frame (33) is provided with a through hole corresponding to the fixing bolt (34), and after the clamping block (32) enters the fixing frame (33), the side of the clamping block (32) is in close contact with the inner wall of the fixing frame (33).